Mercurial > almixer_isolated
annotate ALmixer.c @ 28:60500a33735a
Initial backend changes to decouple assumption of 1 buffer queued per channel / per pass. API will eventually be changed/broken to support this.
| author | Eric Wing <ewing . public |-at-| gmail . com> |
|---|---|
| date | Mon, 28 Mar 2011 15:16:26 -0700 |
| parents | 9cf93a099f75 |
| children | 1c23805d5ce9 |
| rev | line source |
|---|---|
| 0 | 1 |
| 2 /* Here's an OpenAL implementation modeled after | |
| 3 * the SDL_SoundMixer which was built ontop of SDL_Mixer | |
| 4 * and SDL_Sound. | |
| 5 * Eric Wing | |
| 6 */ | |
| 7 | |
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8 #include "ALmixer.h" |
| 0 | 9 |
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10 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
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11 #include "ALmixer_RWops.h" |
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12 #include "SoundDecoder.h" |
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13 #else |
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14 #include "SDL_sound.h" |
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15 #endif |
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16 |
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17 #include "al.h" /* OpenAL */ |
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18 #include "alc.h" /* For creating OpenAL contexts */ |
| 0 | 19 |
| 1 | 20 #ifdef __APPLE__ |
| 21 /* For performance things like ALC_CONVERT_DATA_UPON_LOADING */ | |
| 22 /* Note: ALC_CONVERT_DATA_UPON_LOADING used to be in the alc.h header. | |
| 23 * But in the Tiger OpenAL 1.1 release (10.4.7 and Xcode 2.4), the | |
| 24 * define was moved to a new header file and renamed to | |
| 25 * ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING. | |
| 26 */ | |
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27 #include <TargetConditionals.h> |
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28 /* |
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29 #if (TARGET_OS_IPHONE == 1) || (TARGET_IPHONE_SIMULATOR == 1) |
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30 #include <AudioToolbox/AudioToolbox.h> |
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31 #else |
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32 #include <OpenAL/MacOSX_OALExtensions.h> |
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33 #endif |
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34 */ |
| 1 | 35 #endif |
| 36 | |
| 0 | 37 /* For malloc, bsearch, qsort */ |
| 38 #include <stdlib.h> | |
| 39 | |
| 40 /* For memcpy */ | |
| 41 #include <string.h> | |
| 42 | |
| 43 #if 0 | |
| 44 /* for toupper */ | |
| 45 #include <ctype.h> | |
| 46 /* for strrchr */ | |
| 47 #include <string.h> | |
| 48 #endif | |
| 49 | |
| 50 /* Currently used in the output debug functions */ | |
| 51 #include <stdio.h> | |
| 52 | |
| 53 /* My own CircularQueue implementation needed | |
| 54 * to work around the Nvidia problem of the | |
| 55 * lack of a buffer query. | |
| 56 */ | |
| 57 #include "CircularQueue.h" | |
| 58 | |
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59 /* SDL_sound keeps a private linked list of sounds which get auto-deleted |
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60 * on Sound_Quit. This might actually create some leaks for me in certain |
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61 * usage patterns. To be safe, I should do the same. |
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62 */ |
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63 #include "LinkedList.h" |
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64 |
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65 #ifdef ENABLE_ALMIXER_THREADS |
| 0 | 66 /* Needed for the Mutex locks (and threads if enabled) */ |
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67 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
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68 #include "SimpleMutex.h" |
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69 #include "SimpleThread.h" |
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70 typedef struct SimpleMutex SDL_mutex; |
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71 typedef struct SimpleThread SDL_Thread; |
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72 #define SDL_CreateMutex SimpleMutex_CreateMutex |
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73 #define SDL_DestroyMutex SimpleMutex_DestroyMutex |
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74 #define SDL_LockMutex SimpleMutex_LockMutex |
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75 #define SDL_UnlockMutex SimpleMutex_UnlockMutex |
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76 #define SDL_CreateThread SimpleThread_CreateThread |
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77 #define SDL_WaitThread SimpleThread_WaitThread |
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78 |
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79 #else |
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80 #include "SDL_thread.h" |
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81 #endif |
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82 #endif |
| 0 | 83 |
| 84 /* Because of the API differences between the Loki | |
| 85 * and Creative distributions, we need to know which | |
| 86 * version to use. The LOKI distribution currently | |
| 87 * has AL_BYTE_LOKI defined in altypes.h which | |
| 88 * I will use as a flag to identify the distributions. | |
| 89 * If this is ever removed, I might revert back to the | |
| 90 * if defined(_WIN32) or defined(__APPLE__) test to | |
| 91 * identify the Creative dist. | |
| 92 * I'm not sure if or how the Nvidia distribution differs | |
| 93 * from the Creative distribution. So for | |
| 94 * now, the Nvidia distribution gets lumped with the | |
| 95 * Creative dist and I hope nothing will break. | |
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96 * My alGetString may be the most vulnerable. |
| 0 | 97 */ |
| 98 #ifdef AL_BYTE_LOKI | |
| 99 #define USING_LOKI_AL_DIST | |
| 100 /* This is a short term fix to get around the | |
| 101 * queuing problem with non-power of two buffer sizes. | |
| 102 * Hopefully the maintainers will fix this before | |
| 103 * we're ready to ship. | |
| 104 */ | |
| 105 #define ENABLE_LOKI_QUEUE_FIX_HACK | |
| 106 | |
| 107 /* The AL_GAIN in the Loki dist doesn't seem to do | |
| 108 * what I want/expect it to do. I want to use it for | |
| 109 * Fading, but it seems to work like an off/on switch. | |
| 110 * 0 = off, >0 = on. | |
| 111 * The AL_GAIN_LINEAR_LOKI switch seems to do what | |
| 112 * I want, so I'll redefine it here so the code is consistent | |
| 113 */ | |
| 114 /* Update: I've changed the source volume implementations | |
| 115 * to use AL_MAX_GAIN, so I don't think I need this block | |
| 116 * of code anymore. The listener uses AL_GAIN, but I | |
| 117 * hope they got this one right since there isn't a AL_MAX_GAIN | |
| 118 * for the listener. | |
| 119 */ | |
| 120 /* | |
| 121 #undef AL_GAIN | |
| 122 #include "alexttypes.h" | |
| 123 #define AL_GAIN AL_GAIN_LINEAR_LOKI | |
| 124 */ | |
| 125 #else | |
| 126 /* Might need to run other tests to figure out the DIST */ | |
| 127 /* I've been told that Nvidia doesn't define constants | |
| 128 * in the headers like Creative. Instead of | |
| 129 * #define AL_REFERENCE_DISTANCE 0x1020, | |
| 130 * Nvidia prefers you query OpenAL for a value. | |
| 131 * int AL_REFERENCE_DISTANCE = alGetEnumValue(ALubyte*)"AL_REFERNECE_DISTANCE"); | |
| 132 * So I'm assuming this means the Nvidia lacks this value. | |
| 133 * If this is the case, | |
| 134 * I guess we can use it to identify the Nvidia dist | |
| 135 */ | |
| 136 #ifdef AL_REFERENCE_DISTANCE | |
| 137 #define USING_CREATIVE_AL_DIST | |
| 138 #else | |
| 139 #define USING_NVIDIA_AL_DIST | |
| 140 #endif | |
| 141 #endif | |
| 142 | |
| 143 #ifdef ENABLE_LOKI_QUEUE_FIX_HACK | |
| 144 /* Need memset to zero out data */ | |
| 145 #include <string.h> | |
| 146 #endif | |
| 147 | |
| 148 | |
| 149 /* Seek issues for predecoded samples: | |
| 150 * The problem is that OpenAL makes us copy an | |
| 151 * entire buffer if we want to use it. This | |
| 152 * means we potentially have two copies of the | |
| 153 * same data. For predecoded data, this can be a | |
| 154 * large amount of memory. However, for seek | |
| 155 * support, I need to be able to get access to | |
| 156 * the original data so I can set byte positions. | |
| 157 * The following flags let you disable seek support | |
| 158 * if you don't want the memory hit, keep everything, | |
| 159 * or let you try to minimize the memory wasted by | |
| 160 * fetching it from the OpenAL buffer if needed | |
| 161 * and making a copy of it. | |
| 162 * Update: I don't think I need this flag anymore. I've made the | |
| 163 * effects of this user customizable by the access_data flag on load. | |
| 164 * If set to true, then seek and data callbacks work, with the | |
| 165 * cost of more memory and possibly CPU for copying the data through | |
| 166 * the callbacks. If false, then the extra memory is freed, but | |
| 167 * you don't get the features. | |
| 168 */ | |
| 169 /* | |
| 170 #define DISABLE_PREDECODED_SEEK | |
| 171 */ | |
| 172 /* Problem: Even though alGetBufferi(., AL_DATA, .) | |
| 173 * is in the Creative Programmer's reference, | |
| 174 * it actually isn't in the dist. (Invalid enum | |
| 175 * in Creative, can't compile in Loki.) | |
| 176 * So we have to keep it disabled | |
| 177 */ | |
| 178 #define DISABLE_SEEK_MEMORY_OPTIMIZATION | |
| 179 | |
| 180 #ifndef DISABLE_SEEK_MEMORY_OPTIMIZATION | |
| 181 /* Needed for memcpy */ | |
| 182 #include <string.h> | |
| 183 #endif | |
| 184 | |
| 185 /* Old way of doing things: | |
| 186 #if defined(_WIN32) || defined(__APPLE__) | |
| 187 #define USING_CREATIVE_AL_DIST | |
| 188 #else | |
| 189 #define USING_LOKI_AL_DIST | |
| 190 #endif | |
| 191 */ | |
| 192 | |
| 193 /************ REMOVE ME (Don't need anymore) ********/ | |
| 194 #if 0 | |
| 195 /* Let's get fancy and see if triple buffering | |
| 196 * does anything good for us | |
| 197 * Must be 2 or more or things will probably break | |
| 198 */ | |
| 199 #define NUMBER_OF_QUEUE_BUFFERS 5 | |
| 200 /* This is the number of buffers that are queued up | |
| 201 * when play first starts up. This should be at least 1 | |
| 202 * and no more than NUMBER_OF_QUEUE_BUFFERS | |
| 203 */ | |
| 204 #define NUMBER_OF_START_UP_BUFFERS 2 | |
| 205 #endif | |
| 206 /************ END REMOVE ME (Don't need anymore) ********/ | |
| 207 | |
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208 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
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209 #include "tErrorLib.h" |
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210 static TErrorPool* s_ALmixerErrorPool = NULL; |
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211 #endif |
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212 |
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213 static ALboolean ALmixer_Initialized = 0; |
| 0 | 214 /* This should be set correctly by Init */ |
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215 static ALuint ALmixer_Frequency_global = ALMIXER_DEFAULT_FREQUENCY; |
| 0 | 216 |
| 217 /* Will be initialized in Init */ | |
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218 static ALint Number_of_Channels_global = 0; |
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219 static ALint Number_of_Reserve_Channels_global = 0; |
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220 static ALuint Is_Playing_global = 0; |
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221 |
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222 #ifdef ENABLE_ALMIXER_THREADS |
| 0 | 223 /* This is for a simple lock system. It is not meant to be good, |
| 224 * but just sufficient to minimize/avoid threading issues | |
| 225 */ | |
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226 static SDL_mutex* s_simpleLock; |
| 0 | 227 static SDL_Thread* Stream_Thread_global = NULL; |
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228 #endif /* ENABLE_ALMIXER_THREADS */ |
| 0 | 229 |
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230 static LinkedList* s_listOfALmixerData = NULL; |
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231 |
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232 /* Special stuff for iOS interruption handling */ |
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233 static ALCcontext* s_interruptionContext = NULL; |
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234 |
| 0 | 235 |
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236 #ifdef __APPLE__ |
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237 static ALvoid Internal_alcMacOSXMixerOutputRate(const ALdouble sample_rate) |
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238 { |
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239 static void (*alcMacOSXMixerOutputRateProcPtr)(const ALdouble) = NULL; |
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240 |
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241 if(NULL == alcMacOSXMixerOutputRateProcPtr) |
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242 { |
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243 alcMacOSXMixerOutputRateProcPtr = alGetProcAddress((const ALCchar*) "alcMacOSXMixerOutputRate"); |
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244 } |
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245 |
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246 if(NULL != alcMacOSXMixerOutputRateProcPtr) |
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247 { |
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248 alcMacOSXMixerOutputRateProcPtr(sample_rate); |
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249 } |
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250 |
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251 return; |
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252 } |
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253 |
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254 ALdouble Internal_alcMacOSXGetMixerOutputRate() |
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255 { |
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256 static ALdouble (*alcMacOSXGetMixerOutputRateProcPtr)(void) = NULL; |
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257 |
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258 if(NULL == alcMacOSXGetMixerOutputRateProcPtr) |
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259 { |
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260 alcMacOSXGetMixerOutputRateProcPtr = alGetProcAddress((const ALCchar*) "alcMacOSXGetMixerOutputRate"); |
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261 } |
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262 |
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263 if(NULL != alcMacOSXGetMixerOutputRateProcPtr) |
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264 { |
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265 return alcMacOSXGetMixerOutputRateProcPtr(); |
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266 } |
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267 |
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268 return 0.0; |
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269 } |
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270 #endif |
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271 |
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272 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
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273 |
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274 #if defined(__APPLE__) |
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275 #include <QuartzCore/QuartzCore.h> |
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276 #include <unistd.h> |
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277 static CFTimeInterval s_ticksBaseTime = 0.0; |
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278 |
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279 #elif defined(_WIN32) |
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280 #define WIN32_LEAN_AND_MEAN |
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281 #include <windows.h> |
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282 #include <winbase.h> |
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283 LARGE_INTEGER s_hiResTicksPerSecond; |
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284 double s_hiResSecondsPerTick; |
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285 LARGE_INTEGER s_ticksBaseTime; |
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286 #else |
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287 #include <unistd.h> |
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288 #include <time.h> |
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289 static struct timespec s_ticksBaseTime; |
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290 #endif |
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291 static void ALmixer_InitTime() |
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292 { |
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293 #if defined(__APPLE__) |
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294 s_ticksBaseTime = CACurrentMediaTime(); |
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295 |
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296 #elif defined(_WIN32) |
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297 LARGE_INTEGER hi_res_ticks_per_second; |
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298 if(TRUE == QueryPerformanceFrequency(&hi_res_ticks_per_second)) |
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299 { |
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300 QueryPerformanceCounter(&s_ticksBaseTime); |
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301 s_hiResSecondsPerTick = 1.0 / hi_res_ticks_per_second; |
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302 } |
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303 else |
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304 { |
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305 ALMixer_SetError("Windows error: High resolution clock failed."); |
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306 fprintf(stderr, "Windows error: High resolution clock failed. Audio will not work correctly.\n"); |
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307 } |
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308 #else |
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309 /* clock_gettime is POSIX.1-2001 */ |
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310 clock_gettime(CLOCK_MONOTONIC, &s_ticksBaseTime); |
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311 #endif |
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312 |
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313 } |
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314 static ALuint ALmixer_GetTicks() |
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315 { |
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316 #if defined(__APPLE__) |
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317 return (ALuint)((CACurrentMediaTime()-s_ticksBaseTime)*1000.0); |
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318 #elif defined(_WIN32) |
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319 LARGE_INTEGER current_time; |
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320 QueryPerformanceCounter(¤t_time); |
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321 return (ALuint)((current_time.QuadPart - s_ticksBaseTime.QuadPart) * 1000 * s_hiResSecondsPerTick); |
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322 #else /* assuming POSIX */ |
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323 /* clock_gettime is POSIX.1-2001 */ |
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324 struct timespec current_time; |
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325 clock_gettime(CLOCK_MONOTONIC, ¤t_time); |
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326 return (ALuint)((current_time.tv_sec - s_ticksBaseTime.tv_sec)*1000.0 + (current_time.tv_nsec - s_ticksBaseTime.tv_nsec) / 1000000); |
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327 #endif |
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328 } |
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329 static void ALmixer_Delay(ALuint milliseconds_delay) |
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330 { |
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331 #if defined(_WIN32) |
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332 Sleep(milliseconds_delay); |
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333 #else |
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334 usleep(milliseconds_delay); |
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335 #endif |
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336 } |
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337 #else |
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338 #include "SDL.h" /* For SDL_GetTicks(), SDL_Delay */ |
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339 #define ALmixer_GetTicks SDL_GetTicks |
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340 #define ALmixer_Delay SDL_Delay |
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341 #endif |
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342 |
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343 /* On iOS, usleep() of small numbers (say less than 100, very pronounced from 0-50) |
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344 * seems to be sucking up quite a bit of CPU time and causing performance problems. |
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345 * Instead of increasing the sleep time, I started changing the thread priority. |
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346 * This seemed to help the problem. |
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347 * Experimentally, the default priority seems to be 31. According to the docs, |
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348 * valid ranges are from 0 to 31. 6 was still giving me some hiccups so setting to |
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349 * 0 (PTHREAD_MIN_PRIORITY) seems to be the best value so far. |
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350 * Mac also reports 31 as the default. However, I have not noticed the same |
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351 * performance problems and cannot get audio to show up as a significant percentage |
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352 * of the CPU time in Shark/Instruments. |
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353 */ |
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354 #ifdef ENABLE_ALMIXER_THREADS |
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355 #if defined(__APPLE__) && !defined(ALMIXER_COMPILE_WITHOUT_SDL) && ( (TARGET_OS_IPHONE == 1) || (TARGET_IPHONE_SIMULATOR == 1) ) |
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356 #include <pthread.h> |
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357 #endif |
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358 static void Internal_LowerThreadPriority(SDL_Thread* simple_thread) |
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359 { |
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360 /* Might open to other platforms as needed */ |
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361 #if defined(__APPLE__) && ( (TARGET_OS_IPHONE == 1) || (TARGET_IPHONE_SIMULATOR == 1) ) |
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362 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
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363 SimpleThread_SetThreadPriority(Stream_Thread_global, 0); |
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364 #else |
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365 struct sched_param schedule_param; |
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366 int sched_policy; |
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367 int ret_val; |
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368 schedule_param.sched_priority = 0; /* PTHREAD_MIN_PRIORITY, max=31 */ |
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369 /* EVIL! This will break if the SDL_Thread structure layout changes. */ |
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370 pthread_t* native_thread_ptr_hack = (pthread_t*)(((char*)(Stream_Thread_global))+sizeof(unsigned long)); |
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371 ret_val = pthread_setschedparam(*native_thread_ptr_hack, SCHED_OTHER, &schedule_param); |
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372 #endif |
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373 #else |
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374 /* No-Op */ |
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375 #endif |
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376 } |
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377 #endif /* ENABLE_ALMIXER_THREADS */ |
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378 |
| 0 | 379 /* If ENABLE_PARANOID_SIGNEDNESS_CHECK is used, |
| 380 * these values will be reset on Init() | |
| 381 * Consider these values Read-Only. | |
| 382 */ | |
| 383 | |
| 384 #define ALMIXER_SIGNED_VALUE 127 | |
| 385 #define ALMIXER_UNSIGNED_VALUE 255 | |
| 386 | |
| 387 #ifdef ENABLE_PARANOID_SIGNEDNESS_CHECK | |
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388 static ALushort SIGN_TYPE_16_BIT_FORMAT = AUDIO_S16SYS; |
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389 static ALushort SIGN_TYPE_8_BIT_FORMAT = AUDIO_S8; |
| 0 | 390 #else |
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391 static const ALushort SIGN_TYPE_16_BIT_FORMAT = AUDIO_S16SYS; |
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392 static const ALushort SIGN_TYPE_8_BIT_FORMAT = AUDIO_S8; |
| 0 | 393 #endif |
| 394 | |
| 1 | 395 |
| 396 /* This can be private instead of being in the header now that I moved | |
| 397 * ALmixer_Data inside here. | |
| 398 */ | |
| 399 typedef struct ALmixer_Buffer_Map ALmixer_Buffer_Map; | |
| 400 | |
| 401 | |
| 402 struct ALmixer_Data | |
| 403 { | |
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404 ALboolean decoded_all; /* dictates different behaviors */ |
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405 ALint total_time; /* total playing time of sample (msec), obsolete now that we pushed our changes to SDL_sound */ |
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406 |
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407 ALuint in_use; /* needed to prevent sharing for streams */ |
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408 ALboolean eof; /* flag for eof, only used for streams */ |
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409 |
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410 ALuint total_bytes; /* For predecoded */ |
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411 ALuint loaded_bytes; /* For predecoded (for seek) */ |
| 1 | 412 |
| 413 Sound_Sample* sample; /* SDL_Sound provides the data */ | |
| 414 ALuint* buffer; /* array of OpenAL buffers (at least 1 for predecoded) */ | |
| 415 | |
| 416 /* Needed for streamed buffers */ | |
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417 ALuint max_queue_buffers; /* Max number of queue buffers */ |
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418 ALuint num_startup_buffers; /* Number of ramp-up buffers */ |
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419 ALuint num_buffers_in_use; /* number of buffers in use */ |
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420 ALuint num_target_buffers_per_pass; /* number of buffers to try to queue in an update pass */ |
| 1 | 421 |
| 422 /* This stuff is for streamed buffers that require data access */ | |
| 423 ALmixer_Buffer_Map* buffer_map_list; /* translate ALbuffer to index | |
| 424 and holds pointer to copy of data for | |
| 425 data access */ | |
| 426 ALuint current_buffer; /* The current playing buffer */ | |
| 427 | |
| 428 /* Nvidia distribution refuses to recognize a simple buffer query command | |
| 429 * unlike all other distributions. It's forcing me to redo the code | |
| 430 * to accomodate this Nvidia flaw by making me maintain a "best guess" | |
| 431 * copy of what I think the buffer queue state looks like. | |
| 432 * A circular queue would a helpful data structure for this task, | |
| 433 * but I wanted to avoid making an additional header requirement, | |
| 434 * so I'm making it a void* | |
| 435 */ | |
| 436 void* circular_buffer_queue; | |
| 437 | |
| 438 | |
| 439 }; | |
| 440 | |
| 0 | 441 static struct ALmixer_Channel |
| 442 { | |
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443 ALboolean channel_in_use; |
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444 ALboolean callback_update; /* For streaming determination */ |
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445 ALboolean needs_stream; /* For streaming determination */ |
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446 ALboolean halted; |
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447 ALboolean paused; |
| 0 | 448 ALuint alsource; |
| 449 ALmixer_Data* almixer_data; | |
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450 ALint loops; |
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451 ALint expire_ticks; |
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452 ALuint start_time; |
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453 |
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454 ALboolean fade_enabled; |
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455 ALuint fade_expire_ticks; |
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456 ALuint fade_start_time; |
| 0 | 457 ALfloat fade_inv_time; |
| 458 ALfloat fade_start_volume; | |
| 459 ALfloat fade_end_volume; | |
| 460 ALfloat max_volume; | |
| 461 ALfloat min_volume; | |
| 462 | |
| 463 /* Do we need other flags? | |
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464 ALbyte *samples; |
| 0 | 465 int volume; |
| 466 int looping; | |
| 467 int tag; | |
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468 ALuint expire; |
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469 ALuint start_time; |
| 0 | 470 Mix_Fading fading; |
| 471 int fade_volume; | |
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472 ALuint fade_length; |
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473 ALuint ticks_fade; |
| 0 | 474 effect_info *effects; |
| 475 */ | |
| 476 } *ALmixer_Channel_List = NULL; | |
| 477 | |
| 1 | 478 struct ALmixer_Buffer_Map |
| 479 { | |
| 480 ALuint albuffer; | |
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481 ALint index; /* might not need */ |
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482 ALbyte* data; |
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483 ALuint num_bytes; |
| 1 | 484 }; |
| 485 | |
| 0 | 486 /* This will be used to find a channel if the user supplies a source */ |
| 487 typedef struct Source_Map | |
| 488 { | |
| 489 ALuint source; | |
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490 ALint channel; |
| 0 | 491 } Source_Map; |
| 492 /* Keep an array of all sources with their associated channel */ | |
| 493 static Source_Map* Source_Map_List; | |
| 494 | |
| 495 static int Compare_Source_Map(const void* a, const void* b) | |
| 496 { | |
| 497 return ( ((Source_Map*)a)->source - ((Source_Map*)b)->source ); | |
| 498 } | |
| 499 | |
| 500 /* Sort by channel instead of source */ | |
| 501 static int Compare_Source_Map_by_channel(const void* a, const void* b) | |
| 502 { | |
| 503 return ( ((Source_Map*)a)->channel - ((Source_Map*)b)->channel ); | |
| 504 } | |
| 505 | |
| 506 /* Compare by albuffer */ | |
| 507 static int Compare_Buffer_Map(const void* a, const void* b) | |
| 508 { | |
| 1 | 509 return ( ((ALmixer_Buffer_Map*)a)->albuffer - ((ALmixer_Buffer_Map*)b)->albuffer ); |
| 0 | 510 } |
| 511 | |
| 512 /* This is for the user defined callback via | |
| 513 * ALmixer_ChannelFinished() | |
| 514 */ | |
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515 static void (*Channel_Done_Callback)(ALint which_channel, ALuint al_source, ALmixer_Data* almixer_data, ALboolean finished_naturally, void* user_data) = NULL; |
| 0 | 516 static void* Channel_Done_Callback_Userdata = NULL; |
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517 static void (*Channel_Data_Callback)(ALint which_channel, ALuint al_source, ALbyte* data, ALuint num_bytes, ALuint frequency, ALubyte channels, ALubyte bit_depth, ALboolean is_unsigned, ALboolean decode_mode_is_predecoded, ALuint length_in_msec, void* user_data) = NULL; |
| 1 | 518 static void* Channel_Data_Callback_Userdata = NULL; |
| 0 | 519 |
| 520 | |
| 521 static void PrintQueueStatus(ALuint source) | |
| 522 { | |
| 523 ALint buffers_queued = 0; | |
| 524 ALint buffers_processed = 0; | |
| 525 ALenum error; | |
| 526 | |
| 527 /* Get the number of buffers still queued */ | |
| 528 alGetSourcei( | |
| 529 source, | |
| 530 AL_BUFFERS_QUEUED, | |
| 531 &buffers_queued | |
| 532 ); | |
| 533 | |
| 534 if((error = alGetError()) != AL_NO_ERROR) | |
| 535 { | |
| 536 fprintf(stderr, "Error in PrintQueueStatus, Can't get buffers_queued: %s\n", | |
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537 alGetString(error)); |
| 0 | 538 } |
| 539 /* Get the number of buffers processed | |
| 540 * so we know if we need to refill | |
| 541 */ | |
| 542 alGetSourcei( | |
| 543 source, | |
| 544 AL_BUFFERS_PROCESSED, | |
| 545 &buffers_processed | |
| 546 ); | |
| 547 if((error = alGetError()) != AL_NO_ERROR) | |
| 548 { | |
| 549 fprintf(stderr, "Error in PrintQueueStatus, Can't get buffers_processed: %s\n", | |
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550 alGetString(error)); |
| 0 | 551 } |
| 552 | |
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553 /* |
| 0 | 554 fprintf(stderr, "For source: %d, buffers_queued=%d, buffers_processed=%d\n", |
| 555 source, | |
| 556 buffers_queued, | |
| 557 buffers_processed); | |
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558 */ |
| 0 | 559 } |
| 560 | |
| 561 | |
| 562 | |
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563 static void Init_Channel(ALint channel) |
| 0 | 564 { |
| 565 ALmixer_Channel_List[channel].channel_in_use = 0; | |
| 566 ALmixer_Channel_List[channel].callback_update = 0; | |
| 567 ALmixer_Channel_List[channel].needs_stream = 0; | |
| 568 ALmixer_Channel_List[channel].paused = 0; | |
| 569 ALmixer_Channel_List[channel].halted = 0; | |
| 570 ALmixer_Channel_List[channel].loops = 0; | |
| 571 | |
| 572 ALmixer_Channel_List[channel].expire_ticks = 0; | |
| 573 ALmixer_Channel_List[channel].start_time = 0; | |
| 574 | |
| 575 ALmixer_Channel_List[channel].fade_enabled = 0; | |
| 576 ALmixer_Channel_List[channel].fade_expire_ticks = 0; | |
| 577 ALmixer_Channel_List[channel].fade_start_time = 0; | |
| 578 ALmixer_Channel_List[channel].fade_inv_time = 0.0f; | |
| 579 ALmixer_Channel_List[channel].fade_start_volume = 0.0f; | |
| 580 ALmixer_Channel_List[channel].fade_end_volume = 0.0f; | |
| 581 ALmixer_Channel_List[channel].max_volume = 1.0f; | |
| 582 ALmixer_Channel_List[channel].min_volume = 0.0f; | |
| 583 | |
| 584 ALmixer_Channel_List[channel].almixer_data = NULL; | |
| 585 } | |
| 586 /* Quick helper function to clean up a channel | |
| 587 * after it's done playing */ | |
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588 static void Clean_Channel(ALint channel) |
| 0 | 589 { |
| 590 ALenum error; | |
| 591 ALmixer_Channel_List[channel].channel_in_use = 0; | |
| 592 ALmixer_Channel_List[channel].callback_update = 0; | |
| 593 ALmixer_Channel_List[channel].needs_stream = 0; | |
| 594 ALmixer_Channel_List[channel].paused = 0; | |
| 595 ALmixer_Channel_List[channel].halted = 0; | |
| 596 ALmixer_Channel_List[channel].loops = 0; | |
| 597 | |
| 598 | |
| 599 ALmixer_Channel_List[channel].expire_ticks = 0; | |
| 600 ALmixer_Channel_List[channel].start_time = 0; | |
| 601 | |
| 602 ALmixer_Channel_List[channel].fade_enabled = 0; | |
| 603 ALmixer_Channel_List[channel].fade_expire_ticks = 0; | |
| 604 ALmixer_Channel_List[channel].fade_start_time = 0; | |
| 605 ALmixer_Channel_List[channel].fade_inv_time = 0.0f; | |
| 606 ALmixer_Channel_List[channel].fade_start_volume = 0.0f; | |
| 607 ALmixer_Channel_List[channel].fade_end_volume = 0.0f; | |
| 608 | |
| 609 alSourcef(ALmixer_Channel_List[channel].alsource, AL_MAX_GAIN, | |
| 610 ALmixer_Channel_List[channel].max_volume); | |
| 611 | |
| 612 if((error = alGetError()) != AL_NO_ERROR) | |
| 613 { | |
| 614 fprintf(stderr, "10Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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615 alGetString(error)); |
| 0 | 616 } |
| 617 | |
| 618 alSourcef(ALmixer_Channel_List[channel].alsource, AL_MIN_GAIN, | |
| 619 ALmixer_Channel_List[channel].min_volume); | |
| 620 if((error = alGetError()) != AL_NO_ERROR) | |
| 621 { | |
| 622 fprintf(stderr, "11Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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623 alGetString(error)); |
| 0 | 624 } |
| 625 | |
| 626 if(ALmixer_Channel_List[channel].almixer_data != NULL) | |
| 627 { | |
| 628 if(ALmixer_Channel_List[channel].almixer_data->in_use > 0) | |
| 629 { | |
| 630 ALmixer_Channel_List[channel].almixer_data->in_use--; | |
| 631 } | |
| 632 } | |
| 633 /* Needed to determine if rewind is needed, can't reset */ | |
| 634 /* | |
| 635 ALmixer_Channel_List[channel].almixer_data->eof = 0; | |
| 636 */ | |
| 637 | |
| 638 ALmixer_Channel_List[channel].almixer_data = NULL; | |
| 639 } | |
| 640 | |
| 641 /* What shoud this return? | |
| 642 * 127 for signed, 255 for unsigned | |
| 643 */ | |
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644 static ALubyte GetSignednessValue(ALushort format) |
| 0 | 645 { |
| 646 switch(format) | |
| 647 { | |
| 648 case AUDIO_U8: | |
| 649 case AUDIO_U16LSB: | |
| 650 case AUDIO_U16MSB: | |
| 651 return ALMIXER_UNSIGNED_VALUE; | |
| 652 break; | |
| 653 case AUDIO_S8: | |
| 654 case AUDIO_S16LSB: | |
| 655 case AUDIO_S16MSB: | |
| 656 return ALMIXER_SIGNED_VALUE; | |
| 657 break; | |
| 658 default: | |
| 659 return 0; | |
| 660 } | |
| 661 return 0; | |
| 662 } | |
| 663 | |
| 664 | |
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665 static ALubyte GetBitDepth(ALushort format) |
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666 { |
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667 ALubyte bit_depth = 16; |
| 0 | 668 |
| 669 switch(format) | |
| 670 { | |
| 671 case AUDIO_U8: | |
| 672 case AUDIO_S8: | |
| 673 bit_depth = 8; | |
| 674 break; | |
| 675 | |
| 676 case AUDIO_U16LSB: | |
| 677 /* | |
| 678 case AUDIO_U16: | |
| 679 */ | |
| 680 case AUDIO_S16LSB: | |
| 681 /* | |
| 682 case AUDIO_S16: | |
| 683 */ | |
| 684 case AUDIO_U16MSB: | |
| 685 case AUDIO_S16MSB: | |
| 686 /* | |
| 687 case AUDIO_U16SYS: | |
| 688 case AUDIO_S16SYS: | |
| 689 */ | |
| 690 bit_depth = 16; | |
| 691 break; | |
| 692 default: | |
| 693 bit_depth = 0; | |
| 694 } | |
| 695 return bit_depth; | |
| 696 } | |
| 697 | |
| 698 /* Need to translate between SDL/SDL_Sound audiospec | |
| 699 * and OpenAL conventions */ | |
| 700 static ALenum TranslateFormat(Sound_AudioInfo* info) | |
| 701 { | |
|
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702 ALubyte bit_depth; |
| 0 | 703 |
| 704 bit_depth = GetBitDepth(info->format); | |
| 705 if(0 == bit_depth) | |
| 706 { | |
| 707 fprintf(stderr, "Warning: Unknown bit depth. Setting to 16\n"); | |
| 708 bit_depth = 16; | |
| 709 } | |
| 710 | |
| 711 if(2 == info->channels) | |
| 712 { | |
| 713 if(16 == bit_depth) | |
| 714 { | |
| 715 return AL_FORMAT_STEREO16; | |
| 716 } | |
| 717 else | |
| 718 { | |
| 719 return AL_FORMAT_STEREO8; | |
| 720 } | |
| 721 } | |
| 722 else | |
| 723 { | |
| 724 if(16 == bit_depth) | |
| 725 { | |
| 726 return AL_FORMAT_MONO16; | |
| 727 } | |
| 728 else | |
| 729 { | |
| 730 return AL_FORMAT_MONO8; | |
| 731 } | |
| 732 } | |
| 733 /* Make compiler happy. Shouldn't get here */ | |
| 734 return AL_FORMAT_STEREO16; | |
| 735 } | |
| 736 | |
| 1 | 737 |
| 738 /* This will compute the total playing time | |
| 739 * based upon the number of bytes and audio info. | |
| 740 * (In prinicple, it should compute the time for any given length) | |
| 741 */ | |
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742 static ALuint Compute_Total_Time_Decomposed(ALuint bytes_per_sample, ALuint frequency, ALubyte channels, size_t total_bytes) |
| 1 | 743 { |
| 744 double total_sec; | |
|
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745 ALuint total_msec; |
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746 ALuint bytes_per_sec; |
| 1 | 747 |
| 748 if(0 == total_bytes) | |
| 749 { | |
| 750 return 0; | |
| 751 } | |
| 752 /* To compute Bytes per second, do | |
| 753 * samples_per_sec * bytes_per_sample * number_of_channels | |
| 754 */ | |
| 755 bytes_per_sec = frequency * bytes_per_sample * channels; | |
| 756 | |
| 757 /* Now to get total time (sec), do | |
| 758 * total_bytes / bytes_per_sec | |
| 759 */ | |
| 760 total_sec = total_bytes / (double)bytes_per_sec; | |
| 761 | |
| 762 /* Now convert seconds to milliseconds | |
| 763 * Add .5 to the float to do rounding before the final cast | |
| 764 */ | |
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765 total_msec = (ALuint) ( (total_sec * 1000) + 0.5 ); |
| 1 | 766 /* |
| 767 fprintf(stderr, "freq=%d, bytes_per_sample=%d, channels=%d, total_msec=%d\n", frequency, bytes_per_sample, channels, total_msec); | |
| 768 */ | |
| 769 return total_msec; | |
| 770 } | |
| 771 | |
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772 static ALuint Compute_Total_Time(Sound_AudioInfo *info, size_t total_bytes) |
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773 { |
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774 ALuint bytes_per_sample; |
| 1 | 775 |
| 776 if(0 == total_bytes) | |
| 777 { | |
| 778 return 0; | |
| 779 } | |
| 780 /* SDL has a mask trick I was not aware of. Mask the upper bits | |
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781 * of the format, and you get 8 or 16 which is the bits per sample. |
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782 * Divide by 8bits_per_bytes and you get bytes_per_sample |
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783 * I tested this under 32-bit and 64-bit and big and little endian |
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784 * to make sure this still works since I have since moved from |
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785 * Uint32 to unspecified size types like ALuint. |
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786 */ |
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787 bytes_per_sample = (ALuint) ((info->format & 0xFF) / 8); |
| 1 | 788 |
| 789 return Compute_Total_Time_Decomposed(bytes_per_sample, info->rate, info->channels, total_bytes); | |
| 790 } /* End Compute_Total_Time */ | |
| 791 | |
| 792 | |
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793 #ifdef ALMIXER_DISABLE_PREDECODED_PRECOMPUTE_BUFFER_SIZE_OPTIMIZATION |
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794 static size_t Compute_Total_Bytes_Decomposed(ALuint bytes_per_sample, ALuint frequency, ALubyte channels, ALuint total_msec) |
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795 { |
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796 double total_sec; |
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797 ALuint bytes_per_sec; |
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798 size_t total_bytes; |
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799 |
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800 if(0 >= total_msec) |
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801 { |
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802 return 0; |
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803 } |
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804 /* To compute Bytes per second, do |
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805 * samples_per_sec * bytes_per_sample * number_of_channels |
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806 */ |
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807 bytes_per_sec = frequency * bytes_per_sample * channels; |
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808 |
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809 /* convert milliseconds to seconds */ |
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810 total_sec = total_msec / 1000.0; |
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811 |
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812 /* Now to get total bytes */ |
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813 total_bytes = (size_t)(((double)bytes_per_sec * total_sec) + 0.5); |
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814 |
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815 /* fprintf(stderr, "freq=%d, bytes_per_sample=%d, channels=%d, total_msec=%d, total_bytes=%d\n", frequency, bytes_per_sample, channels, total_msec, total_bytes); |
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816 */ |
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817 |
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818 return total_bytes; |
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819 } |
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820 |
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821 static size_t Compute_Total_Bytes(Sound_AudioInfo *info, ALuint total_msec) |
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822 { |
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823 ALuint bytes_per_sample; |
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824 |
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825 if(0 >= total_msec) |
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826 { |
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827 return 0; |
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828 } |
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829 /* SDL has a mask trick I was not aware of. Mask the upper bits |
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830 * of the format, and you get 8 or 16 which is the bits per sample. |
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831 * Divide by 8bits_per_bytes and you get bytes_per_sample |
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832 * I tested this under 32-bit and 64-bit and big and little endian |
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833 * to make sure this still works since I have since moved from |
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834 * Uint32 to unspecified size types like ALuint. |
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835 */ |
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836 bytes_per_sample = (ALuint) ((info->format & 0xFF) / 8); |
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837 |
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838 return Compute_Total_Bytes_Decomposed(bytes_per_sample, info->rate, info->channels, total_msec); |
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839 } |
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840 |
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841 |
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842 /* The back-end decoders seem to need to decode in quantized frame sizes. |
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843 * So if I can pad the bytes to the next quanta, things might go more smoothly. |
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844 */ |
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845 static size_t Compute_Total_Bytes_With_Frame_Padding(Sound_AudioInfo *info, ALuint total_msec) |
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846 { |
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847 ALuint bytes_per_sample; |
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848 ALuint bytes_per_frame; |
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849 size_t evenly_divisible_frames; |
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850 size_t remainder_frames; |
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851 size_t return_bytes; |
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852 |
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853 size_t total_bytes = Compute_Total_Bytes(info, total_msec); |
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854 |
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855 bytes_per_sample = (ALuint) ((info->format & 0xFF) / 8); |
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856 |
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857 bytes_per_frame = bytes_per_sample * info->channels; |
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858 |
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859 evenly_divisible_frames = total_bytes / bytes_per_frame; |
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860 remainder_frames = total_bytes % bytes_per_frame; |
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861 |
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862 return_bytes = (evenly_divisible_frames * bytes_per_frame) + (remainder_frames * bytes_per_frame); |
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863 |
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864 /* Experimentally, some times I see to come up short in |
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865 * actual bytes decoded and I see a second pass is needed. |
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866 * I'm worried this may have additional performance implications. |
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867 * Sometimes in the second pass (depending on file), |
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868 * I have seen between 0 and 18 bytes. |
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869 * I'm tempted to pad the bytes by some arbitrary amount. |
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870 * However, I think currently the way SDL_sound is implemented, |
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871 * there is a big waste of memory up front instead of per-pass, |
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872 * so maybe I shouldn't worry about this. |
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873 */ |
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874 /* |
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875 return_bytes += 64; |
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876 */ |
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877 /* |
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878 fprintf(stderr, "remainder_frames=%d, padded_total_bytes=%d\n", remainder_frames, return_bytes); |
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879 */ |
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880 return return_bytes; |
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881 } |
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882 #endif /* ALMIXER_DISABLE_PREDECODED_PRECOMPUTE_BUFFER_SIZE_OPTIMIZATION */ |
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883 |
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884 |
| 1 | 885 |
| 0 | 886 /**************** REMOVED ****************************/ |
| 887 /* This was removed because I originally thought | |
| 888 * OpenAL could return a pointer to the buffer data, | |
| 889 * but I was wrong. If something like that is ever | |
| 890 * implemented, then this might become useful. | |
| 891 */ | |
| 892 #if 0 | |
| 893 /* Reconstruct_Sound_Sample and Set_AudioInfo only | |
| 894 * are needed if the Seek memory optimization is | |
| 895 * used. Also, the Loki dist doesn't seem to support | |
| 896 * AL_DATA which I need for it. | |
| 897 */ | |
| 898 #ifndef DISABLE_SEEK_MEMORY_OPTIMIZATION | |
| 899 | |
| 900 static void Set_AudioInfo(Sound_AudioInfo* info, ALint frequency, ALint bits, ALint channels) | |
| 901 { | |
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902 info->rate = (ALuint)frequency; |
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903 info->channels = (ALubyte)channels; |
| 0 | 904 |
| 905 /* Not sure if it should be signed or unsigned. Hopefully | |
| 906 * that detail won't be needed. | |
| 907 */ | |
| 908 if(8 == bits) | |
| 909 { | |
| 910 info->format = AUDIO_U8; | |
| 911 } | |
| 912 else | |
| 913 { | |
| 914 info->format = AUDIO_U16SYS; | |
| 915 } | |
| 916 fprintf(stderr, "Audio info: freq=%d, chan=%d, format=%d\n", | |
| 917 info->rate, info->channels, info->format); | |
| 918 | |
| 919 } | |
| 920 | |
| 921 | |
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922 static ALint Reconstruct_Sound_Sample(ALmixer_Data* data) |
| 0 | 923 { |
| 924 ALenum error; | |
| 925 ALint* data_from_albuffer; | |
| 926 ALint freq; | |
| 927 ALint bits; | |
| 928 ALint channels; | |
| 929 ALint size; | |
| 930 | |
| 931 /* Create memory all initiallized to 0. */ | |
| 932 data->sample = (Sound_Sample*)calloc(1, sizeof(Sound_Sample)); | |
| 933 if(NULL == data->sample) | |
| 934 { | |
| 935 ALmixer_SetError("Out of memory for Sound_Sample"); | |
| 936 return -1; | |
| 937 } | |
| 938 | |
| 939 /* Clear errors */ | |
| 940 alGetError(); | |
| 941 | |
| 942 alGetBufferi(data->buffer[0], AL_FREQUENCY, &freq); | |
| 943 if((error = alGetError()) != AL_NO_ERROR) | |
| 944 { | |
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945 ALmixer_SetError("alGetBufferi(AL_FREQUENCY): %s", alGetString(error) ); |
| 0 | 946 free(data->sample); |
| 947 data->sample = NULL; | |
| 948 return -1; | |
| 949 } | |
| 950 | |
| 951 alGetBufferi(data->buffer[0], AL_BITS, &bits); | |
| 952 if((error = alGetError()) != AL_NO_ERROR) | |
| 953 { | |
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954 ALmixer_SetError("alGetBufferi(AL_BITS): %s", alGetString(error) ); |
| 0 | 955 free(data->sample); |
| 956 data->sample = NULL; | |
| 957 return -1; | |
| 958 } | |
| 959 | |
| 960 alGetBufferi(data->buffer[0], AL_CHANNELS, &channels); | |
| 961 if((error = alGetError()) != AL_NO_ERROR) | |
| 962 { | |
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963 ALmixer_SetError("alGetBufferi(AL_CHANNELS): %s", alGetString(error) ); |
| 0 | 964 free(data->sample); |
| 965 data->sample = NULL; | |
| 966 return -1; | |
| 967 } | |
| 968 | |
| 969 alGetBufferi(data->buffer[0], AL_SIZE, &size); | |
| 970 if((error = alGetError()) != AL_NO_ERROR) | |
| 971 { | |
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972 ALmixer_SetError("alGetBufferi(AL_SIZE): %s", alGetString(error) ); |
| 0 | 973 free(data->sample); |
| 974 data->sample = NULL; | |
| 975 return -1; | |
| 976 } | |
| 977 | |
| 978 alGetBufferi(data->buffer[0], AL_DATA, data_from_albuffer); | |
| 979 if((error = alGetError()) != AL_NO_ERROR) | |
| 980 { | |
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981 ALmixer_SetError("alGetBufferi(AL_DATA): %s", alGetString(error) ); |
| 0 | 982 free(data->sample); |
| 983 data->sample = NULL; | |
| 984 return -1; | |
| 985 } | |
| 986 | |
| 987 if(size <= 0) | |
| 988 { | |
| 989 ALmixer_SetError("No data in al buffer"); | |
| 990 free(data->sample); | |
| 991 data->sample = NULL; | |
| 992 return -1; | |
| 993 } | |
| 994 | |
| 995 /* Now that we have all the attributes, we need to | |
| 996 * allocate memory for the buffer and reconstruct | |
| 997 * the AudioInfo attributes. | |
| 998 */ | |
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999 data->sample->buffer = malloc(size*sizeof(ALbyte)); |
| 0 | 1000 if(NULL == data->sample->buffer) |
| 1001 { | |
| 1002 ALmixer_SetError("Out of memory for sample->buffer"); | |
| 1003 free(data->sample); | |
| 1004 data->sample = NULL; | |
| 1005 return -1; | |
| 1006 } | |
| 1007 | |
| 1008 memcpy(data->sample->buffer, data_from_albuffer, size); | |
| 1009 data->sample->buffer_size = size; | |
| 1010 | |
| 1011 /* Fill up the Sound_AudioInfo structures */ | |
| 1012 Set_AudioInfo(&data->sample->desired, freq, bits, channels); | |
| 1013 Set_AudioInfo(&data->sample->actual, freq, bits, channels); | |
| 1014 | |
| 1015 return 0; | |
| 1016 } | |
| 1017 | |
| 1018 #endif /* End DISABLE_SEEK_MEMORY_OPTIMIZATION */ | |
| 1019 #endif | |
| 1020 /*************** END REMOVED *************************/ | |
| 1021 | |
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1022 static void Invoke_Channel_Done_Callback(ALint which_channel, ALboolean did_finish_naturally) |
| 0 | 1023 { |
| 1024 if(NULL == Channel_Done_Callback) | |
| 1025 { | |
| 1026 return; | |
| 1027 } | |
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1028 Channel_Done_Callback(which_channel, ALmixer_Channel_List[which_channel].alsource, ALmixer_Channel_List[which_channel].almixer_data, did_finish_naturally, Channel_Done_Callback_Userdata); |
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1029 } |
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1030 |
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1031 static ALint LookUpBuffer(ALuint buffer, ALmixer_Buffer_Map* buffer_map_list, ALuint num_items_in_list) |
| 0 | 1032 { |
| 1033 /* Only the first value is used for the key */ | |
| 1 | 1034 ALmixer_Buffer_Map key = { 0, 0, NULL, 0 }; |
| 1035 ALmixer_Buffer_Map* found_item = NULL; | |
| 0 | 1036 key.albuffer = buffer; |
| 1037 | |
| 1038 /* Use the ANSI C binary search feature (yea!) */ | |
| 1 | 1039 found_item = (ALmixer_Buffer_Map*)bsearch(&key, buffer_map_list, num_items_in_list, sizeof(ALmixer_Buffer_Map), Compare_Buffer_Map); |
| 0 | 1040 if(NULL == found_item) |
| 1041 { | |
| 1042 ALmixer_SetError("Can't find buffer"); | |
| 1043 return -1; | |
| 1044 } | |
| 1045 return found_item->index; | |
| 1046 } | |
| 1047 | |
| 1048 | |
| 1049 /* FIXME: Need to pass back additional info to be useful. | |
| 1050 * Bit rate, stereo/mono (num chans), time in msec? | |
| 1051 * Precoded/streamed flag so user can plan for future data? | |
| 1052 */ | |
| 1 | 1053 /* |
| 1054 * channels: 1 for mono, 2 for stereo | |
| 1055 * | |
| 1056 */ | |
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1057 static void Invoke_Channel_Data_Callback(ALint which_channel, ALbyte* data, ALuint num_bytes, ALuint frequency, ALubyte channels, ALushort format, ALboolean decode_mode_is_predecoded) |
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1058 { |
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1059 ALboolean is_unsigned; |
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1060 ALubyte bits_per_sample = GetBitDepth(format); |
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1061 ALuint bytes_per_sample; |
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1062 ALuint length_in_msec; |
| 1 | 1063 |
| 1064 if(GetSignednessValue(format) == ALMIXER_UNSIGNED_VALUE) | |
| 1065 { | |
| 1066 is_unsigned = 1; | |
| 1067 } | |
| 1068 else | |
| 1069 { | |
| 1070 is_unsigned = 0; | |
| 1071 } | |
| 1072 | |
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1073 bytes_per_sample = (ALuint) (bits_per_sample / 8); |
| 1 | 1074 |
| 1075 length_in_msec = Compute_Total_Time_Decomposed(bytes_per_sample, frequency, channels, num_bytes); | |
| 1076 | |
| 0 | 1077 /* |
| 1078 fprintf(stderr, "%x %x %x %x, bytes=%d, whichchan=%d, freq=%d, channels=%d\n", data[0], data[1], data[2], data[3], num_bytes, channels, frequency, channels); | |
| 1079 */ | |
| 1080 if(NULL == Channel_Data_Callback) | |
| 1081 { | |
| 1082 return; | |
| 1083 } | |
| 1 | 1084 /* |
| 1085 * Channel_Data_Callback(which_channel, data, num_bytes, frequency, channels, GetBitDepth(format), format, decode_mode_is_predecoded); | |
| 1086 */ | |
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1087 Channel_Data_Callback(which_channel, ALmixer_Channel_List[which_channel].alsource, data, num_bytes, frequency, channels, bits_per_sample, is_unsigned, decode_mode_is_predecoded, length_in_msec, Channel_Data_Callback_Userdata); |
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1088 } |
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1089 |
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1090 static void Invoke_Predecoded_Channel_Data_Callback(ALint channel, ALmixer_Data* data) |
| 0 | 1091 { |
| 1092 if(NULL == data->sample) | |
| 1093 { | |
| 1094 return; | |
| 1095 } | |
| 1096 /* The buffer position is complicated because if the current data was seeked, | |
| 1097 * we must adjust the buffer to the seek position | |
| 1098 */ | |
| 1099 Invoke_Channel_Data_Callback(channel, | |
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1100 (((ALbyte*) data->sample->buffer) + (data->total_bytes - data->loaded_bytes) ), |
| 0 | 1101 data->loaded_bytes, |
| 1102 data->sample->desired.rate, | |
| 1103 data->sample->desired.channels, | |
| 1104 data->sample->desired.format, | |
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1105 AL_TRUE |
| 0 | 1106 ); |
| 1107 } | |
| 1108 | |
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1109 static void Invoke_Streamed_Channel_Data_Callback(ALint channel, ALmixer_Data* data, ALuint buffer) |
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1110 { |
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1111 ALint index; |
| 0 | 1112 if(NULL == data->buffer_map_list) |
| 1113 { | |
| 1114 return; | |
| 1115 } | |
| 1116 index = LookUpBuffer(buffer, data->buffer_map_list, data->max_queue_buffers); | |
| 1117 /* This should catch the case where all buffers are unqueued | |
| 1118 * and the "current" buffer is id: 0 | |
| 1119 */ | |
| 1120 if(-1 == index) | |
| 1121 { | |
| 1122 return; | |
| 1123 } | |
| 1124 Invoke_Channel_Data_Callback(channel, | |
| 1125 data->buffer_map_list[index].data, | |
| 1126 data->buffer_map_list[index].num_bytes, | |
| 1127 data->sample->desired.rate, | |
| 1128 data->sample->desired.channels, | |
| 1129 data->sample->desired.format, | |
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1130 AL_FALSE |
| 0 | 1131 ); |
| 1132 } | |
| 1133 | |
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1134 /* Converts milliseconds to byte positions. |
| 0 | 1135 * This is needed for seeking on predecoded samples |
| 1136 */ | |
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1137 static ALuint Convert_Msec_To_Byte_Pos(Sound_AudioInfo* audio_info, ALuint number_of_milliseconds) |
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1138 { |
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1139 ALuint bytes_per_sample; |
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1140 ALuint bytes_per_frame; |
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1141 float bytes_per_millisecond; |
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1142 float byte_position; |
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1143 |
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1144 if(audio_info == NULL) |
| 0 | 1145 { |
| 1146 fprintf(stderr, "Error, info is NULL\n"); | |
| 1147 } | |
| 1148 | |
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1149 /* SDL has a mask trick I was not aware of. Mask the upper bits |
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1150 * of the format, and you get 8 or 16 which is the bits per sample. |
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1151 * Divide by 8bits_per_bytes and you get bytes_per_sample |
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1152 * I tested this under 32-bit and 64-bit and big and little endian |
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1153 * to make sure this still works since I have since moved from |
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1154 * Uint32 to unspecified size types like ALuint. |
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1155 */ |
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1156 bytes_per_sample = (ALuint) ((audio_info->format & 0xFF) / 8); |
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1157 bytes_per_frame = bytes_per_sample * audio_info->channels; |
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1158 bytes_per_millisecond = (float)bytes_per_frame * (audio_info->rate / 1000.0f); |
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1159 byte_position = ((float)(number_of_milliseconds)) * bytes_per_millisecond; |
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1160 return (ALuint)(byte_position + 0.5); |
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1161 } |
| 0 | 1162 |
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1163 static ALint Set_Predecoded_Seek_Position(ALmixer_Data* data, ALuint byte_position) |
| 0 | 1164 { |
| 1165 ALenum error; | |
| 1166 /* clear error */ | |
| 1167 alGetError(); | |
| 1168 | |
| 1169 /* Is it greater than, or greater-than or equal to ?? */ | |
| 1170 if(byte_position > data->total_bytes) | |
| 1171 { | |
| 1172 /* We can't go past the end, so set to end? */ | |
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1173 /* |
| 0 | 1174 fprintf(stderr, "Error, can't seek past end\n"); |
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1175 */ |
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1176 |
| 0 | 1177 /* In case the below thing doesn't work, |
| 1178 * just rewind the whole thing. | |
| 1179 * | |
| 1180 alBufferData(data->buffer[0], | |
| 1181 TranslateFormat(&data->sample->desired), | |
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1182 (ALbyte*) data->sample->buffer, |
| 0 | 1183 data->total_bytes, |
| 1184 data->sample->desired.rate | |
| 1185 ); | |
| 1186 */ | |
| 1187 | |
| 1188 /* I was trying to set to the end, (1 byte remaining), | |
| 1189 * but I was getting freezes. I'm thinking it might be | |
| 1190 * another Power of 2 bug in the Loki dist. I tried 2, | |
| 1191 * and it still hung. 4 didn't hang, but I got a clip | |
| 1192 * artifact. 8 seemed to work okay. | |
| 1193 */ | |
| 1194 alBufferData(data->buffer[0], | |
| 1195 TranslateFormat(&data->sample->desired), | |
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1196 (((ALbyte*) data->sample->buffer) + (data->total_bytes - 8) ), |
| 0 | 1197 8, |
| 1198 data->sample->desired.rate | |
| 1199 ); | |
| 1200 if( (error = alGetError()) != AL_NO_ERROR) | |
| 1201 { | |
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1202 ALmixer_SetError("Can't seek past end and alBufferData failed: %s\n", alGetString(error)); |
| 0 | 1203 return -1; |
| 1204 } | |
| 1205 /* Need to set the loaded_bytes field because I don't trust the OpenAL | |
| 1206 * query command to work because I don't know if it will mutilate the | |
| 1207 * size for its own purposes or return the original size | |
| 1208 */ | |
| 1209 data->loaded_bytes = 8; | |
| 1210 | |
| 1211 /* Not sure if this should be an error or not */ | |
| 1212 /* | |
| 1213 ALmixer_SetError("Can't Seek past end"); | |
| 1214 return -1; | |
| 1215 */ | |
| 1216 return 0; | |
| 1217 } | |
| 1218 | |
| 1219 alBufferData(data->buffer[0], | |
| 1220 TranslateFormat(&data->sample->desired), | |
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1221 &(((ALbyte*)data->sample->buffer)[byte_position]), |
| 0 | 1222 data->total_bytes - byte_position, |
| 1223 data->sample->desired.rate | |
| 1224 ); | |
| 1225 if( (error = alGetError()) != AL_NO_ERROR) | |
| 1226 { | |
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1227 ALmixer_SetError("alBufferData failed: %s\n", alGetString(error)); |
| 0 | 1228 return -1; |
| 1229 } | |
| 1230 /* Need to set the loaded_bytes field because I don't trust the OpenAL | |
| 1231 * query command to work because I don't know if it will mutilate the | |
| 1232 * size for its own purposes or return the original size | |
| 1233 */ | |
| 1234 data->loaded_bytes = data->total_bytes - byte_position; | |
| 1235 | |
| 1236 return 0; | |
| 1237 } | |
| 1238 | |
| 1239 /* Because we have multiple queue buffers and OpenAL won't let | |
| 1240 * us access them, we need to keep copies of each buffer around | |
| 1241 */ | |
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1242 static ALint CopyDataToAccessBuffer(ALmixer_Data* data, ALuint num_bytes, ALuint buffer) |
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1243 { |
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1244 ALint index; |
| 0 | 1245 /* We only want to copy if access_data is true. |
| 1246 * This is determined by whether memory has been | |
| 1247 * allocated in the buffer_map_list or not | |
| 1248 */ | |
| 1249 if(NULL == data->buffer_map_list) | |
| 1250 { | |
| 1251 return -1; | |
| 1252 } | |
| 1253 index = LookUpBuffer(buffer, data->buffer_map_list, data->max_queue_buffers); | |
| 1254 if(-1 == index) | |
| 1255 { | |
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1256 /* |
| 0 | 1257 fprintf(stderr, ">>>>>>>CopyData catch, albuffer=%d\n",buffer); |
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1258 */ |
| 0 | 1259 return -1; |
| 1260 } | |
| 1261 /* Copy the data to the access buffer */ | |
| 1262 memcpy(data->buffer_map_list[index].data, data->sample->buffer, num_bytes); | |
| 1263 data->buffer_map_list[index].num_bytes = data->sample->buffer_size; | |
| 1264 | |
| 1265 return 0; | |
| 1266 } | |
| 1267 | |
| 1268 | |
| 1269 /* For streamed data, gets more data | |
| 1270 * and prepares it in the active Mix_chunk | |
| 1271 */ | |
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1272 static ALuint GetMoreData(ALmixer_Data* data, ALuint buffer) |
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1273 { |
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1274 ALuint bytes_decoded; |
| 0 | 1275 ALenum error; |
| 1276 if(NULL == data) | |
| 1277 { | |
| 1278 ALmixer_SetError("Cannot GetMoreData() because ALmixer_Data* is NULL\n"); | |
| 1279 return 0; | |
| 1280 } | |
| 1281 | |
| 1282 bytes_decoded = Sound_Decode(data->sample); | |
| 1283 if(data->sample->flags & SOUND_SAMPLEFLAG_ERROR) | |
| 1284 { | |
| 1285 fprintf(stderr, "Sound_Decode triggered an ERROR>>>>>>\n"); | |
| 1286 ALmixer_SetError(Sound_GetError()); | |
| 1287 /* Force cleanup through FreeData | |
| 1288 Sound_FreeSample(data->sample); | |
| 1289 */ | |
| 1290 return 0; | |
| 1291 } | |
| 1292 | |
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1293 /* fprintf(stderr, "GetMoreData bytes_decoded=%d\n", bytes_decoded); */ |
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1294 |
| 0 | 1295 /* Don't forget to add check for EOF */ |
| 1296 /* Will return 0 bytes and pass the buck to check sample->flags */ | |
| 1297 if(0 == bytes_decoded) | |
| 1298 { | |
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1299 data->eof = 1; |
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1300 |
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1301 #if 0 |
| 0 | 1302 fprintf(stderr, "Hit eof while trying to buffer\n"); |
| 1303 if(data->sample->flags & SOUND_SAMPLEFLAG_EOF) | |
| 1304 { | |
| 1305 fprintf(stderr, "\tEOF flag\n"); | |
| 1306 } | |
| 1307 if(data->sample->flags & SOUND_SAMPLEFLAG_CANSEEK) | |
| 1308 { | |
| 1309 fprintf(stderr, "\tCanSeek flag\n"); | |
| 1310 } | |
| 1311 if(data->sample->flags & SOUND_SAMPLEFLAG_EAGAIN) | |
| 1312 { | |
| 1313 fprintf(stderr, "\tEAGAIN flag\n"); | |
| 1314 } | |
| 1315 if(data->sample->flags & SOUND_SAMPLEFLAG_NONE) | |
| 1316 { | |
| 1317 fprintf(stderr, "\tNONE flag\n"); | |
| 1318 } | |
| 1319 #endif | |
| 1320 return 0; | |
| 1321 } | |
| 1322 | |
| 1323 #ifdef ENABLE_LOKI_QUEUE_FIX_HACK | |
| 1324 /******* REMOVE ME ********************************/ | |
| 1325 /***************** ANOTHER EXPERIEMENT *******************/ | |
| 1326 /* The PROBLEM: It seems that the Loki distribution has problems | |
| 1327 * with Queuing when the buffer size is not a power of two | |
| 1328 * and additional buffers must come after it. | |
| 1329 * The behavior is inconsistent, but one of several things | |
| 1330 * usually happens: | |
| 1331 * Playback is normal | |
| 1332 * Playback immediately stops after the non-pow2 buffer | |
| 1333 * Playback gets distorted on the non-pow2 buffer | |
| 1334 * The entire program segfaults. | |
| 1335 * The workaround is to always specify a power of two buffer size | |
| 1336 * and hope that SDL_sound always fill it. (By lucky coincidence, | |
| 1337 * I already submitted the Ogg fix.) However, this won't catch | |
| 1338 * cases where a loop happens because the read at the end of the | |
| 1339 * file is typically less than the buffer size. | |
| 1340 * | |
| 1341 * This fix addresses this issue, however it may break in | |
| 1342 * other conditions. Always decode in buffer sizes of powers of 2. | |
| 1343 * | |
| 1344 * The HACK: | |
| 1345 * If the buffer is short, try filling it up with 0's | |
| 1346 * to meet the user requested buffer_size which | |
| 1347 * is probably a nice number OpenAL likes, in | |
| 1348 * hopes to avoid a possible Loki bug with | |
| 1349 * short buffers. If looping (which is the main | |
| 1350 * reason for this), the negative side effect is | |
| 1351 * that it may take longer for the loop to start | |
| 1352 * because it must play dead silence. Or if the decoder | |
| 1353 * doesn't guarantee to return the requested bytes | |
| 1354 * (like Ogg), then you will get breakup in between | |
| 1355 * packets. | |
| 1356 */ | |
| 1357 if( (bytes_decoded) < data->sample->buffer_size) | |
| 1358 { | |
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1359 ALubyte bit_depth; |
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1360 ALubyte signedness_value; |
| 0 | 1361 int silence_value; |
| 1362 /* Crap, memset value needs to be the "silent" value, | |
| 1363 * but it will differ for signed/unsigned and bit depth | |
| 1364 */ | |
| 1365 bit_depth = GetBitDepth(data->sample->desired.format); | |
| 1366 signedness_value = GetSignednessValue(data->sample->desired.format); | |
| 1367 if(ALMIXER_SIGNED_VALUE == signedness_value) | |
| 1368 { | |
| 1369 /* I'm guessing that if it's signed, then 0 is the | |
| 1370 * "silent" value */ | |
| 1371 silence_value = 0; | |
| 1372 } | |
| 1373 else | |
| 1374 { | |
| 1375 if(8 == bit_depth) | |
| 1376 { | |
| 1377 /* If 8 bit, I'm guessing it's (2^7)-1 = 127 */ | |
| 1378 silence_value = 127; | |
| 1379 } | |
| 1380 else | |
| 1381 { | |
| 1382 /* For 16 bit, I'm guessing it's (2^15)-1 = 32767 */ | |
| 1383 silence_value = 32767; | |
| 1384 } | |
| 1385 } | |
| 1386 /* Now fill up the rest of the data buffer with the | |
| 1387 * silence_value. | |
| 1388 * I don't think I have to worry about endian issues for | |
| 1389 * this part since the data is for internal use only | |
| 1390 * at this point. | |
| 1391 */ | |
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1392 memset( &( ((ALbyte*)(data->sample->buffer))[bytes_decoded] ), silence_value, data->sample->buffer_size - bytes_decoded); |
| 0 | 1393 /* Now reset the bytes_decoded to reflect the entire |
| 1394 * buffer to tell alBufferData what our full size is. | |
| 1395 */ | |
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1396 /* |
| 0 | 1397 fprintf(stderr, "ALTERED bytes decoded for silence: Original end was %d\n", bytes_decoded); |
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1398 */ |
| 0 | 1399 bytes_decoded = data->sample->buffer_size; |
| 1400 } | |
| 1401 /*********** END EXPERIMENT ******************************/ | |
| 1402 /******* END REMOVE ME ********************************/ | |
| 1403 #endif | |
| 1404 | |
| 1405 /* Now copy the data to the OpenAL buffer */ | |
| 1406 /* We can't just set a pointer because the API needs | |
| 1407 * its own copy to assist hardware acceleration */ | |
| 1408 alBufferData(buffer, | |
| 1409 TranslateFormat(&data->sample->desired), | |
| 1410 data->sample->buffer, | |
| 1411 bytes_decoded, | |
| 1412 data->sample->desired.rate | |
| 1413 ); | |
| 1414 if( (error = alGetError()) != AL_NO_ERROR) | |
| 1415 { | |
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1416 ALmixer_SetError("alBufferData failed: %s\n", alGetString(error)); |
| 0 | 1417 return 0; |
| 1418 } | |
| 1419 | |
| 1420 /* If we need to, copy the data also to the access area | |
| 1421 * (the function will do the check for us) | |
| 1422 */ | |
| 1423 CopyDataToAccessBuffer(data, bytes_decoded, buffer); | |
| 1424 return bytes_decoded; | |
| 1425 } | |
| 1426 | |
| 1427 | |
| 1428 | |
| 1429 | |
| 1430 /******************** EXPERIEMENT **************************** | |
| 1431 * Test function to force maximum buffer filling during loops | |
| 1432 * REMOVE LATER | |
| 1433 *********************************************/ | |
| 1434 #if 0 | |
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1435 static ALint GetMoreData2(ALmixer_Data* data, ALuint buffer) |
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1436 { |
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1437 ALint bytes_decoded; |
| 0 | 1438 ALenum error; |
| 1439 if(NULL == data) | |
| 1440 { | |
| 1441 ALmixer_SetError("Cannot GetMoreData() because ALmixer_Data* is NULL\n"); | |
| 1442 return -1; | |
| 1443 } | |
| 1444 | |
| 1445 if(AL_FALSE == alIsBuffer(buffer)) | |
| 1446 { | |
| 1447 fprintf(stderr, "NOT A BUFFER>>>>>>>>>>>>>>>\n"); | |
| 1448 return -1; | |
| 1449 } | |
| 1450 fprintf(stderr, "Entered GetMoreData222222: buffer id is %d\n", buffer); | |
| 1451 | |
| 1452 /* | |
| 1453 fprintf(stderr, "Decode in GetMoreData\n"); | |
| 1454 */ | |
| 1455 | |
| 1456 #if 0 | |
| 1457 if(buffer%2 == 1) | |
| 1458 { | |
| 1459 fprintf(stderr, "Setting buffer size to 16384\n"); | |
| 1460 Sound_SetBufferSize(data->sample, 16384); | |
| 1461 } | |
| 1462 else | |
| 1463 { | |
| 1464 fprintf(stderr, "Setting buffer size to 8192\n"); | |
| 1465 Sound_SetBufferSize(data->sample, 8192); | |
| 1466 } | |
| 1467 #endif | |
| 1468 | |
| 1469 bytes_decoded = Sound_Decode(data->sample); | |
| 1470 if(data->sample->flags & SOUND_SAMPLEFLAG_ERROR) | |
| 1471 { | |
| 1472 fprintf(stderr, "Sound_Decode triggered an ERROR>>>>>>\n"); | |
| 1473 ALmixer_SetError(Sound_GetError()); | |
| 1474 /* | |
| 1475 Sound_FreeSample(data->sample); | |
| 1476 */ | |
| 1477 return -1; | |
| 1478 } | |
| 1479 /* Don't forget to add check for EOF */ | |
| 1480 /* Will return 0 bytes and pass the buck to check sample->flags */ | |
| 1481 if(0 == bytes_decoded) | |
| 1482 { | |
| 1483 #if 1 | |
| 1484 fprintf(stderr, "Hit eof while trying to buffer\n"); | |
| 1485 data->eof = 1; | |
| 1486 if(data->sample->flags & SOUND_SAMPLEFLAG_EOF) | |
| 1487 { | |
| 1488 fprintf(stderr, "\tEOF flag\n"); | |
| 1489 } | |
| 1490 if(data->sample->flags & SOUND_SAMPLEFLAG_CANSEEK) | |
| 1491 { | |
| 1492 fprintf(stderr, "\tCanSeek flag\n"); | |
| 1493 } | |
| 1494 if(data->sample->flags & SOUND_SAMPLEFLAG_EAGAIN) | |
| 1495 { | |
| 1496 fprintf(stderr, "\tEAGAIN flag\n"); | |
| 1497 } | |
| 1498 if(data->sample->flags & SOUND_SAMPLEFLAG_NONE) | |
| 1499 { | |
| 1500 fprintf(stderr, "\tNONE flag\n"); | |
| 1501 } | |
| 1502 #endif | |
| 1503 return 0; | |
| 1504 } | |
| 1505 | |
| 1506 if(bytes_decoded < 16384) | |
| 1507 { | |
| 1508 char* tempbuffer1 = (char*)malloc(16384); | |
| 1509 char* tempbuffer2 = (char*)malloc(16384); | |
| 1510 int retval; | |
| 1511 memcpy(tempbuffer1, data->sample->buffer, bytes_decoded); | |
| 1512 retval = Sound_SetBufferSize(data->sample, 16384-bytes_decoded); | |
| 1513 if(retval == 1) | |
| 1514 { | |
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1515 ALuint new_bytes; |
| 0 | 1516 Sound_Rewind(data->sample); |
| 1517 new_bytes = Sound_Decode(data->sample); | |
| 1518 fprintf(stderr, "Orig bytes: %d, Make up bytes_decoded=%d, total=%d\n", bytes_decoded, new_bytes, new_bytes+bytes_decoded); | |
| 1519 | |
| 1520 memcpy(tempbuffer2, data->sample->buffer, new_bytes); | |
| 1521 | |
| 1522 retval = Sound_SetBufferSize(data->sample, 16384); | |
| 1523 fprintf(stderr, "Finished reset...now danger copy\n"); | |
| 1524 memcpy(data->sample->buffer, tempbuffer1,bytes_decoded); | |
| 1525 | |
| 1526 fprintf(stderr, "Finished reset...now danger copy2\n"); | |
| 1527 memcpy( &( ((char*)(data->sample->buffer))[bytes_decoded] ), tempbuffer2, new_bytes); | |
| 1528 | |
| 1529 fprintf(stderr, "Finished \n"); | |
| 1530 | |
| 1531 free(tempbuffer1); | |
| 1532 free(tempbuffer2); | |
| 1533 bytes_decoded += new_bytes; | |
| 1534 fprintf(stderr, "ASSERT bytes should equal 16384: %d\n", bytes_decoded); | |
| 1535 } | |
| 1536 else | |
| 1537 { | |
| 1538 fprintf(stderr, "Experiment failed: %s\n", Sound_GetError()); | |
| 1539 } | |
| 1540 } | |
| 1541 | |
| 1542 /* Now copy the data to the OpenAL buffer */ | |
| 1543 /* We can't just set a pointer because the API needs | |
| 1544 * its own copy to assist hardware acceleration */ | |
| 1545 alBufferData(buffer, | |
| 1546 TranslateFormat(&data->sample->desired), | |
| 1547 data->sample->buffer, | |
| 1548 bytes_decoded, | |
| 1549 data->sample->desired.rate | |
| 1550 ); | |
| 1551 if( (error = alGetError()) != AL_NO_ERROR) | |
| 1552 { | |
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1553 ALmixer_SetError("alBufferData failed: %s\n", alGetString(error)); |
| 0 | 1554 return -1; |
| 1555 } | |
| 1556 | |
| 1557 fprintf(stderr, "GetMoreData2222 returning %d bytes decoded\n", bytes_decoded); | |
| 1558 return bytes_decoded; | |
| 1559 } | |
| 1560 #endif | |
| 1561 | |
| 1562 /************ END EXPERIEMENT - REMOVE ME *************************/ | |
| 1563 | |
| 1564 | |
| 1565 | |
| 1566 | |
| 1567 | |
| 1568 | |
| 1569 | |
| 1570 | |
| 1571 | |
| 1572 /* This function will look up the source for the corresponding channel */ | |
| 1573 /* Must return 0 on error instead of -1 because of unsigned int */ | |
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1574 static ALuint Internal_GetSource(ALint channel) |
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1575 { |
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1576 ALint i; |
| 0 | 1577 /* Make sure channel is in bounds */ |
| 1578 if(channel >= Number_of_Channels_global) | |
| 1579 { | |
| 1580 ALmixer_SetError("Requested channel (%d) exceeds maximum channel (%d) because only %d channels are allocated", channel, Number_of_Channels_global-1, Number_of_Channels_global); | |
| 1581 return 0; | |
| 1582 } | |
| 1583 /* If the user specified -1, then return the an available source */ | |
| 1584 if(channel < 0) | |
| 1585 { | |
| 1586 for(i=Number_of_Reserve_Channels_global; i<Number_of_Channels_global; i++) | |
| 1587 { | |
| 1588 if( ! ALmixer_Channel_List[i].channel_in_use ) | |
| 1589 { | |
| 1590 return ALmixer_Channel_List[i].alsource; | |
| 1591 } | |
| 1592 } | |
| 1593 /* If we get here, all sources are in use */ | |
| 1594 /* Error message seems too harsh | |
| 1595 ALmixer_SetError("All sources are in use"); | |
| 1596 */ | |
| 1597 return 0; | |
| 1598 } | |
| 1599 /* Last case: Return the source for the channel */ | |
| 1600 return ALmixer_Channel_List[channel].alsource; | |
| 1601 } | |
| 1602 | |
| 1603 /* This function will look up the channel for the corresponding source */ | |
|
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1604 static ALint Internal_GetChannel(ALuint source) |
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1605 { |
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|
1606 ALint i; |
| 0 | 1607 /* Only the first value is used for the key */ |
| 1608 Source_Map key = { 0, 0 }; | |
| 1609 Source_Map* found_item = NULL; | |
| 1610 key.source = source; | |
| 1611 | |
| 1612 /* If the source is 0, look up the first available channel */ | |
| 1613 if(0 == source) | |
| 1614 { | |
| 1615 for(i=Number_of_Reserve_Channels_global; i<Number_of_Channels_global; i++) | |
| 1616 { | |
| 1617 if( ! ALmixer_Channel_List[i].channel_in_use ) | |
| 1618 { | |
| 1619 return i; | |
| 1620 } | |
| 1621 } | |
| 1622 /* If we get here, all sources are in use */ | |
| 1623 /* Error message seems too harsh | |
| 1624 ALmixer_SetError("All channels are in use"); | |
| 1625 */ | |
| 1626 return -1; | |
| 1627 } | |
| 1628 | |
| 1629 | |
| 1630 /* Else, look up the source and return the channel */ | |
| 1631 if(AL_FALSE == alIsSource(source)) | |
| 1632 { | |
| 1633 ALmixer_SetError("Is not a source"); | |
| 1634 return -1; | |
| 1635 } | |
| 1636 | |
| 1637 /* Use the ANSI C binary search feature (yea!) */ | |
| 1638 found_item = (Source_Map*)bsearch(&key, Source_Map_List, Number_of_Channels_global, sizeof(Source_Map), Compare_Source_Map); | |
| 1639 if(NULL == found_item) | |
| 1640 { | |
| 1641 ALmixer_SetError("Source is valid but not registered with ALmixer (to a channel)"); | |
| 1642 return -1; | |
| 1643 } | |
| 1644 return found_item->channel; | |
| 1645 } | |
| 1646 | |
| 1647 | |
| 1648 | |
| 1649 /* This function will find the first available channel (not in use) | |
| 1650 * from the specified start channel. Reserved channels to not qualify | |
| 1651 * as available. | |
| 1652 */ | |
|
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1653 static ALint Internal_FindFreeChannel(ALint start_channel) |
| 0 | 1654 { |
| 1655 /* Start at the number of reserved so we skip over | |
| 1656 * all the reserved channels. | |
| 1657 */ | |
|
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1658 ALint i = Number_of_Reserve_Channels_global; |
| 0 | 1659 /* Quick check to see if we're out of bounds */ |
| 1660 if(start_channel >= Number_of_Channels_global) | |
| 1661 { | |
| 1662 return -1; | |
| 1663 } | |
| 1664 | |
| 1665 /* If the start channel is even higher than the reserved, | |
| 1666 * then start at the higher value. | |
| 1667 */ | |
| 1668 if(start_channel > Number_of_Reserve_Channels_global) | |
| 1669 { | |
| 1670 i = start_channel; | |
| 1671 } | |
| 1672 | |
| 1673 /* i has already been set */ | |
| 1674 for( ; i<Number_of_Channels_global; i++) | |
| 1675 { | |
| 1676 if( ! ALmixer_Channel_List[i].channel_in_use ) | |
| 1677 { | |
| 1678 return i; | |
| 1679 } | |
| 1680 } | |
| 1681 /* If we get here, all sources are in use */ | |
| 1682 return -1; | |
| 1683 } | |
| 1684 | |
| 1685 | |
| 1686 | |
|
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1687 /* Will return the number of channels halted |
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1688 * or 0 for error |
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1689 */ |
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1690 static ALint Internal_HaltChannel(ALint channel, ALboolean did_finish_naturally) |
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1691 { |
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1692 ALint retval = 0; |
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1693 ALint counter = 0; |
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1694 ALenum error; |
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1695 ALint buffers_still_queued; |
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1696 ALint buffers_processed; |
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1697 |
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1698 if(channel >= Number_of_Channels_global) |
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1699 { |
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1700 ALmixer_SetError("Cannot halt channel %d because it exceeds maximum number of channels (%d)\n", channel, Number_of_Channels_global); |
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1701 return -1; |
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1702 } |
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1703 /* If the user specified a specific channel */ |
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1704 if(channel >= 0) |
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1705 { |
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1706 /* only need to process channel if in use */ |
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1707 if(ALmixer_Channel_List[channel].channel_in_use) |
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1708 { |
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1709 alSourceStop(ALmixer_Channel_List[channel].alsource); |
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1710 if((error = alGetError()) != AL_NO_ERROR) |
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1711 { |
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1712 fprintf(stderr, "14Testing error: %s\n", |
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1713 alGetString(error)); |
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1714 } |
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1715 /* Here's the situation. My old method of using |
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1716 * alSourceUnqueueBuffers() seemed to be invalid in light |
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1717 * of all the problems I suffered through with getting |
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1718 * the CoreData backend to work with this code. |
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1719 * As such, I'm changing all the code to set the buffer to |
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1720 * AL_NONE. Furthermore, the queued vs. non-queued issue |
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1721 * doesn't need to apply here. For non-queued, Loki, |
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1722 * Creative Windows, and CoreAudio seem to leave the |
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1723 * buffer queued (Old Mac didn't.) For queued, we need to |
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1724 * remove the processed buffers and force remove the |
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1725 * still-queued buffers. |
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1726 */ |
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1727 alGetSourcei( |
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1728 ALmixer_Channel_List[channel].alsource, |
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1729 AL_BUFFERS_QUEUED, &buffers_still_queued |
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1730 ); |
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1731 if((error = alGetError()) != AL_NO_ERROR) |
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1732 { |
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1733 fprintf(stderr, "17Testing Error with buffers_still_queued: %s", |
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1734 alGetString(error)); |
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1735 ALmixer_SetError("Failed detecting still queued buffers: %s", |
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1736 alGetString(error) ); |
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1737 retval = -1; |
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1738 } |
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1739 alGetSourcei( |
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1740 ALmixer_Channel_List[channel].alsource, |
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1741 AL_BUFFERS_PROCESSED, &buffers_processed |
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1742 ); |
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1743 if((error = alGetError()) != AL_NO_ERROR) |
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1744 { |
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1745 fprintf(stderr, "17Testing Error with buffers_processed: %s", |
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1746 alGetString(error)); |
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1747 ALmixer_SetError("Failed detecting still processed buffers: %s", |
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1748 alGetString(error) ); |
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1749 retval = -1; |
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1750 } |
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1751 /* If either of these is greater than 0, it means we need |
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1752 * to clear the source |
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1753 */ |
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1754 if((buffers_still_queued > 0) || (buffers_processed > 0)) |
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1755 { |
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1756 alSourcei(ALmixer_Channel_List[channel].alsource, |
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1757 AL_BUFFER, |
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1758 AL_NONE); |
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1759 if((error = alGetError()) != AL_NO_ERROR) |
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1760 { |
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1761 fprintf(stderr, "17Testing Error with clearing buffer from source: %s", |
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1762 alGetString(error)); |
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1763 ALmixer_SetError("Failed to clear buffer from source: %s", |
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1764 alGetString(error) ); |
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1765 retval = -1; |
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1766 } |
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1767 } |
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1768 |
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1769 ALmixer_Channel_List[channel].almixer_data->num_buffers_in_use = 0; |
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1770 |
|
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1771 /* Launch callback for consistency? */ |
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1772 Invoke_Channel_Done_Callback(channel, did_finish_naturally); |
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1773 |
|
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1774 Clean_Channel(channel); |
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1775 Is_Playing_global--; |
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1776 counter++; |
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1777 } |
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1778 } |
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1779 /* The user wants to halt all channels */ |
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1780 else |
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1781 { |
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1782 ALint i; |
|
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1783 for(i=0; i<Number_of_Channels_global; i++) |
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1784 { |
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1785 /* only need to process channel if in use */ |
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1786 if(ALmixer_Channel_List[i].channel_in_use) |
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1787 { |
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1788 alSourceStop(ALmixer_Channel_List[i].alsource); |
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1789 if((error = alGetError()) != AL_NO_ERROR) |
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1790 { |
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1791 fprintf(stderr, "19Testing error: %s\n", |
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1792 alGetString(error)); |
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1793 } |
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1794 |
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1795 /* Here's the situation. My old method of using |
|
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1796 * alSourceUnqueueBuffers() seemed to be invalid in light |
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1797 * of all the problems I suffered through with getting |
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1798 * the CoreData backend to work with this code. |
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1799 * As such, I'm changing all the code to set the buffer to |
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1800 * AL_NONE. Furthermore, the queued vs. non-queued issue |
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1801 * doesn't need to apply here. For non-queued, Loki, |
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1802 * Creative Windows, and CoreAudio seem to leave the |
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1803 * buffer queued (Old Mac didn't.) For queued, we need to |
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1804 * remove the processed buffers and force remove the |
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1805 * still-queued buffers. |
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1806 */ |
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1807 alGetSourcei( |
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1808 ALmixer_Channel_List[i].alsource, |
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1809 AL_BUFFERS_QUEUED, &buffers_still_queued |
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1810 ); |
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1811 if((error = alGetError()) != AL_NO_ERROR) |
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1812 { |
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1813 fprintf(stderr, "17Testing Error with buffers_still_queued: %s", |
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1814 alGetString(error)); |
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1815 ALmixer_SetError("Failed detecting still queued buffers: %s", |
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1816 alGetString(error) ); |
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1817 retval = -1; |
|
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1818 } |
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1819 alGetSourcei( |
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1820 ALmixer_Channel_List[i].alsource, |
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1821 AL_BUFFERS_PROCESSED, &buffers_processed |
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1822 ); |
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1823 if((error = alGetError()) != AL_NO_ERROR) |
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1824 { |
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1825 fprintf(stderr, "17Testing Error with buffers_processed: %s", |
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1826 alGetString(error)); |
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1827 ALmixer_SetError("Failed detecting still processed buffers: %s", |
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1828 alGetString(error) ); |
|
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1829 retval = -1; |
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1830 } |
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1831 /* If either of these is greater than 0, it means we need |
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1832 * to clear the source |
|
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1833 */ |
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1834 if((buffers_still_queued > 0) || (buffers_processed > 0)) |
|
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1835 { |
|
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1836 alSourcei(ALmixer_Channel_List[i].alsource, |
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1837 AL_BUFFER, |
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1838 AL_NONE); |
|
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1839 if((error = alGetError()) != AL_NO_ERROR) |
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1840 { |
|
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1841 fprintf(stderr, "17Testing Error with clearing buffer from source: %s", |
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1842 alGetString(error)); |
|
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1843 ALmixer_SetError("Failed to clear buffer from source: %s", |
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1844 alGetString(error) ); |
|
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|
1845 retval = -1; |
|
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1846 } |
|
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1847 } |
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1848 |
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1849 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use = 0; |
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1850 |
|
10
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1851 /* Launch callback for consistency? */ |
|
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1852 Invoke_Channel_Done_Callback(i, did_finish_naturally); |
|
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1853 |
|
2
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1854 Clean_Channel(i); |
|
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1855 Is_Playing_global--; |
|
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1856 |
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1857 /* Increment the counter */ |
|
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1858 counter++; |
|
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1859 } |
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1860 /* Let's halt everything just in case there |
|
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1861 * are bugs. |
|
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1862 */ |
|
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1863 /* |
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1864 else |
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1865 { |
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1866 alSourceStop(ALmixer_Channel_List[channel].alsource); |
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1867 / * Can't clean because the in_use counter for |
|
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1868 * data will get messed up * / |
|
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1869 Clean_Channel(channel); |
|
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1870 } |
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1871 */ |
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1872 /* Just in case */ |
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1873 Is_Playing_global = 0; |
|
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1874 } |
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1875 } |
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1876 if(-1 == retval) |
|
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1877 { |
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1878 return -1; |
|
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1879 } |
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1880 return counter; |
|
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1881 } |
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1882 |
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1883 |
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1884 /* Will return the source halted or the total number of channels |
|
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1885 * if all were halted or 0 for error |
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1886 */ |
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1887 static ALint Internal_HaltSource(ALuint source, ALboolean did_finish_naturally) |
|
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1888 { |
|
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1889 ALint channel; |
|
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1890 if(0 == source) |
|
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1891 { |
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1892 /* Will return the number of sources halted */ |
|
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1893 return Internal_HaltChannel(-1, did_finish_naturally); |
|
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1894 } |
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1895 |
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1896 channel = Internal_GetChannel(source); |
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1897 if(-1 == channel) |
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1898 { |
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1899 ALmixer_SetError("Cannot halt source: %s", ALmixer_GetError()); |
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1900 return -1; |
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1901 } |
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1902 return Internal_HaltChannel(channel, did_finish_naturally); |
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1903 } |
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1904 |
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1905 |
| 0 | 1906 |
| 1907 /* Note: Behaves, almost like SDL_mixer, but keep in mind | |
| 1908 * that there is no "music" channel anymore, so 0 | |
| 1909 * will remove everything. (Note, I no longer allow 0 | |
| 1910 * so it gets set to the default number.) | |
| 1911 * Also, callbacks for deleted channels will not be called. | |
| 1912 * I really need to do error checking, for realloc and | |
| 1913 * GenSources, but reversing the damage is too painful | |
| 1914 * for me to think about at the moment, so it's not in here. | |
| 1915 */ | |
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1916 static ALint Internal_AllocateChannels(ALint numchans) |
| 0 | 1917 { |
| 1918 ALenum error; | |
| 1919 int i; | |
| 1920 /* Return info */ | |
| 1921 if(numchans < 0) | |
| 1922 { | |
| 1923 return Number_of_Channels_global; | |
| 1924 } | |
| 1925 if(0 == numchans) | |
| 1926 { | |
| 1927 numchans = ALMIXER_DEFAULT_NUM_CHANNELS; | |
| 1928 } | |
| 1929 /* No change */ | |
| 1930 if(numchans == Number_of_Channels_global) | |
| 1931 { | |
| 1932 return Number_of_Channels_global; | |
| 1933 } | |
| 1934 /* We need to increase the number of channels */ | |
| 1935 if(numchans > Number_of_Channels_global) | |
| 1936 { | |
| 1937 /* Not sure how safe this is, but SDL_mixer does it | |
| 1938 * the same way */ | |
| 1939 ALmixer_Channel_List = (struct ALmixer_Channel*) realloc( ALmixer_Channel_List, numchans * sizeof(struct ALmixer_Channel)); | |
| 1940 | |
| 1941 /* Allocate memory for the list of sources that map to the channels */ | |
| 1942 Source_Map_List = (Source_Map*) realloc(Source_Map_List, numchans * sizeof(Source_Map)); | |
| 1943 | |
| 1944 for(i=Number_of_Channels_global; i<numchans; i++) | |
| 1945 { | |
| 1946 Init_Channel(i); | |
| 1947 /* Generate a new source and associate it with the channel */ | |
| 1948 alGenSources(1, &ALmixer_Channel_List[i].alsource); | |
| 1949 if((error = alGetError()) != AL_NO_ERROR) | |
| 1950 { | |
| 1951 fprintf(stderr, "12Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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1952 alGetString(error)); |
| 0 | 1953 } |
| 1954 /* Copy the source so the SourceMap has it too */ | |
| 1955 Source_Map_List[i].source = ALmixer_Channel_List[i].alsource; | |
| 1956 Source_Map_List[i].channel = i; | |
| 1957 /* Clean the channel because there are some things that need to | |
| 1958 * be done that can't happen until the source is set | |
| 1959 */ | |
| 1960 Clean_Channel(i); | |
| 1961 } | |
| 1962 | |
| 1963 /* The Source_Map_List must be sorted by source for binary searches | |
| 1964 */ | |
| 1965 qsort(Source_Map_List, numchans, sizeof(Source_Map), Compare_Source_Map); | |
| 1966 | |
| 1967 Number_of_Channels_global = numchans; | |
| 1968 return numchans; | |
| 1969 } | |
| 1970 /* Need to remove channels. This might be dangerous */ | |
| 1971 if(numchans < Number_of_Channels_global) | |
| 1972 { | |
| 1973 for(i=numchans; i<Number_of_Channels_global; i++) | |
| 1974 { | |
| 1975 /* Halt the channel */ | |
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1976 Internal_HaltChannel(i, AL_FALSE); |
| 0 | 1977 |
| 1978 /* Delete source associated with the channel */ | |
| 1979 alDeleteSources(1, &ALmixer_Channel_List[i].alsource); | |
| 1980 if((error = alGetError()) != AL_NO_ERROR) | |
| 1981 { | |
| 1982 fprintf(stderr, "13Testing error: %s\n", | |
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1983 alGetString(error)); |
| 0 | 1984 } |
| 1985 } | |
| 1986 | |
| 1987 | |
| 1988 /* Not sure how safe this is, but SDL_mixer does it | |
| 1989 * the same way */ | |
| 1990 ALmixer_Channel_List = (struct ALmixer_Channel*) realloc( ALmixer_Channel_List, numchans * sizeof(struct ALmixer_Channel)); | |
| 1991 | |
| 1992 /* The tricky part is that we must remove the entries | |
| 1993 * in the source map that correspond to the deleted channels. | |
| 1994 * We'll resort the map by channels so we can pick them off | |
| 1995 * in order. | |
| 1996 */ | |
| 1997 qsort(Source_Map_List, Number_of_Channels_global, sizeof(Source_Map), Compare_Source_Map_by_channel); | |
| 1998 | |
| 1999 /* Deallocate memory for the list of sources that map to the channels */ | |
| 2000 Source_Map_List = (Source_Map*) realloc(Source_Map_List, numchans * sizeof(Source_Map)); | |
| 2001 | |
| 2002 /* Now resort the map by source and the correct num of chans */ | |
| 2003 qsort(Source_Map_List, numchans, sizeof(Source_Map), Compare_Source_Map); | |
| 2004 | |
| 2005 /* Reset the number of channels */ | |
| 2006 Number_of_Channels_global = numchans; | |
| 2007 return numchans; | |
| 2008 } | |
| 2009 /* Shouldn't ever reach here */ | |
| 2010 return -1; | |
| 2011 | |
| 2012 } | |
| 2013 | |
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2014 static ALint Internal_ReserveChannels(ALint num) |
| 0 | 2015 { |
| 2016 /* Can't reserve more than the max num of channels */ | |
| 2017 /* Actually, I'll allow it for people who just want to | |
| 2018 * set the value really high to effectively disable | |
| 2019 * auto-assignment | |
| 2020 */ | |
| 2021 | |
| 2022 /* Return the current number of reserved channels */ | |
| 2023 if(num < 0) | |
| 2024 { | |
| 2025 return Number_of_Reserve_Channels_global; | |
| 2026 } | |
| 2027 Number_of_Reserve_Channels_global = num; | |
| 2028 return Number_of_Reserve_Channels_global; | |
| 2029 } | |
| 2030 | |
| 2031 | |
| 2032 /* This will rewind the SDL_Sound sample for streamed | |
| 2033 * samples and start buffering up the data for the next | |
| 2034 * playback. This may require samples to be halted | |
| 2035 */ | |
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2036 static ALboolean Internal_RewindData(ALmixer_Data* data) |
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2037 { |
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2038 ALint retval = 0; |
| 0 | 2039 /* |
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2040 ALint bytes_returned; |
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2041 ALint i; |
| 0 | 2042 */ |
| 2043 if(NULL == data) | |
| 2044 { | |
| 2045 ALmixer_SetError("Cannot rewind because data is NULL\n"); | |
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2046 return AL_FALSE; |
| 0 | 2047 } |
| 2048 | |
| 2049 | |
| 2050 /* Might have to require Halt */ | |
| 2051 /* Okay, we assume Halt or natural stop has already | |
| 2052 * cleared the data buffers | |
| 2053 */ | |
| 2054 if(data->in_use) | |
| 2055 { | |
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2056 /* |
| 0 | 2057 fprintf(stderr, "Warning sample is in use. May not be able to rewind\n"); |
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2058 */ |
| 0 | 2059 /* |
| 2060 ALmixer_SetError("Data is in use. Cannot rewind unless all sources using the data are halted\n"); | |
| 2061 return -1; | |
| 2062 */ | |
| 2063 } | |
| 2064 | |
| 2065 | |
| 2066 /* Because Seek can alter things even in predecoded data, | |
| 2067 * decoded data must also be rewound | |
| 2068 */ | |
| 2069 if(data->decoded_all) | |
| 2070 { | |
| 2071 data->eof = 0; | |
| 2072 | |
| 2073 #if 0 | |
| 2074 #if defined(DISABLE_PREDECODED_SEEK) | |
| 2075 /* Since we can't seek predecoded stuff, it should be rewound */ | |
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2076 return AL_TRUE; |
| 0 | 2077 #elif !defined(DISABLE_SEEK_MEMORY_OPTIMIZATION) |
| 2078 /* This case is if the Sound_Sample has been deleted. | |
| 2079 * It assumes the data is already at the beginning. | |
| 2080 */ | |
| 2081 if(NULL == data->sample) | |
| 2082 { | |
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2083 return AL_TRUE; |
| 0 | 2084 } |
| 2085 /* Else, the sample has already been reallocated, | |
| 2086 * and we can fall to normal behavior | |
| 2087 */ | |
| 2088 #endif | |
| 2089 #endif | |
| 2090 /* If access_data, was enabled, the sound sample | |
| 2091 * still exists and we can do stuff. | |
| 2092 * If it's NULL, we can't do anything, but | |
| 2093 * it should already be "rewound". | |
| 2094 */ | |
| 2095 if(NULL == data->sample) | |
| 2096 { | |
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2097 return AL_TRUE; |
| 0 | 2098 } |
| 2099 /* Else, the sample has already been reallocated, | |
| 2100 * and we can fall to normal behavior | |
| 2101 */ | |
| 2102 | |
| 2103 Set_Predecoded_Seek_Position(data, 0); | |
| 2104 /* | |
| 2105 return data->total_bytes; | |
| 2106 */ | |
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2107 return AL_TRUE; |
| 0 | 2108 } |
| 2109 | |
| 2110 /* Remaining stuff for streamed data */ | |
| 2111 | |
| 2112 data->eof = 0; | |
| 2113 retval = Sound_Rewind(data->sample); | |
| 2114 if(0 == retval) | |
| 2115 { | |
| 2116 ALmixer_SetError( Sound_GetError() ); | |
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2117 return AL_FALSE; |
| 0 | 2118 } |
| 2119 #if 0 | |
| 2120 /* Clear error */ | |
| 2121 alGetError(); | |
| 2122 for(i=0; i<data->num_buffers; i++) | |
| 2123 { | |
| 2124 bytes_returned = GetMoreData(data, data->buffer[i]); | |
| 2125 if(-1 == bytes_returned) | |
| 2126 { | |
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2127 return AL_FALSE; |
| 0 | 2128 } |
| 2129 else if(0 == bytes_returned) | |
| 2130 { | |
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2131 return AL_FALSE; |
| 0 | 2132 } |
| 2133 retval += bytes_returned; | |
| 2134 | |
| 2135 } | |
| 2136 #endif | |
| 2137 | |
| 2138 | |
| 2139 | |
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2140 return AL_TRUE; |
| 0 | 2141 } |
| 2142 | |
| 2143 | |
| 2144 | |
| 2145 | |
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2146 static ALint Internal_RewindChannel(ALint channel) |
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2147 { |
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2148 ALint retval = 0; |
| 0 | 2149 ALenum error; |
| 2150 ALint state; | |
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2151 ALint running_count = 0; |
| 0 | 2152 |
| 2153 if(channel >= Number_of_Channels_global) | |
| 2154 { | |
| 2155 ALmixer_SetError("Cannot rewind channel %d because it exceeds maximum number of channels (%d)\n", channel, Number_of_Channels_global); | |
| 2156 return -1; | |
| 2157 } | |
| 2158 | |
| 2159 if((error = alGetError()) != AL_NO_ERROR) | |
| 2160 { | |
| 2161 fprintf(stderr, "24Testing error: %s\n", | |
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2162 alGetString(error)); |
| 0 | 2163 } |
| 2164 /* Clear error */ | |
| 2165 alGetError(); | |
| 2166 | |
| 2167 /* If the user specified a specific channel */ | |
| 2168 if(channel >= 0) | |
| 2169 { | |
| 2170 /* only need to process channel if in use */ | |
| 2171 if(ALmixer_Channel_List[channel].channel_in_use) | |
| 2172 { | |
| 2173 | |
| 2174 /* What should I do? Do I just rewind the channel | |
| 2175 * or also rewind the data? Since the data is | |
| 2176 * shared, let's make it the user's responsibility | |
| 2177 * to rewind the data. | |
| 2178 */ | |
| 2179 if(ALmixer_Channel_List[channel].almixer_data->decoded_all) | |
| 2180 { | |
| 2181 alGetSourcei( | |
| 2182 ALmixer_Channel_List[channel].alsource, | |
| 2183 AL_SOURCE_STATE, &state | |
| 2184 ); | |
| 2185 if((error = alGetError()) != AL_NO_ERROR) | |
| 2186 { | |
| 2187 fprintf(stderr, "25Testing error: %s\n", | |
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2188 alGetString(error)); |
| 0 | 2189 } |
| 2190 alSourceRewind(ALmixer_Channel_List[channel].alsource); | |
| 2191 if((error = alGetError()) != AL_NO_ERROR) | |
| 2192 { | |
| 2193 ALmixer_SetError("%s", | |
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2194 alGetString(error) ); |
| 0 | 2195 retval = -1; |
| 2196 } | |
| 2197 /* Need to resume playback if it was originally playing */ | |
| 2198 if(AL_PLAYING == state) | |
| 2199 { | |
| 2200 alSourcePlay(ALmixer_Channel_List[channel].alsource); | |
| 2201 if((error = alGetError()) != AL_NO_ERROR) | |
| 2202 { | |
| 2203 ALmixer_SetError("%s", | |
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2204 alGetString(error) ); |
| 0 | 2205 retval = -1; |
| 2206 } | |
| 2207 } | |
| 2208 else if(AL_PAUSED == state) | |
| 2209 { | |
| 2210 /* HACK: The problem is that when paused, after | |
| 2211 * the Rewind, I can't get it off the INITIAL | |
| 2212 * state without restarting | |
| 2213 */ | |
| 2214 alSourcePlay(ALmixer_Channel_List[channel].alsource); | |
| 2215 if((error = alGetError()) != AL_NO_ERROR) | |
| 2216 { | |
| 2217 fprintf(stderr, "25Testing error: %s\n", | |
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2218 alGetString(error)); |
| 0 | 2219 } |
| 2220 alSourcePause(ALmixer_Channel_List[channel].alsource); | |
| 2221 if((error = alGetError()) != AL_NO_ERROR) | |
| 2222 { | |
| 2223 ALmixer_SetError("%s", | |
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2224 alGetString(error) ); |
| 0 | 2225 retval = -1; |
| 2226 } | |
| 2227 } | |
| 2228 } | |
| 2229 else | |
| 2230 { | |
| 2231 /* Streamed data is different. Rewinding the channel | |
| 2232 * does no good. Rewinding the data will have an | |
| 2233 * effect, but it will be lagged based on how | |
| 2234 * much data is queued. Recommend users call Halt | |
| 2235 * before rewind if they want immediate results. | |
| 2236 */ | |
| 2237 retval = Internal_RewindData(ALmixer_Channel_List[channel].almixer_data); | |
| 2238 } | |
| 2239 } | |
| 2240 } | |
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2241 /* The user wants to rewind all channels */ |
| 0 | 2242 else |
| 2243 { | |
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2244 ALint i; |
| 0 | 2245 for(i=0; i<Number_of_Channels_global; i++) |
| 2246 { | |
| 2247 /* only need to process channel if in use */ | |
| 2248 if(ALmixer_Channel_List[i].channel_in_use) | |
| 2249 { | |
| 2250 /* What should I do? Do I just rewind the channel | |
| 2251 * or also rewind the data? Since the data is | |
| 2252 * shared, let's make it the user's responsibility | |
| 2253 * to rewind the data. | |
| 2254 */ | |
| 2255 if(ALmixer_Channel_List[i].almixer_data->decoded_all) | |
| 2256 { | |
| 2257 alGetSourcei( | |
| 2258 ALmixer_Channel_List[i].alsource, | |
| 2259 AL_SOURCE_STATE, &state | |
| 2260 ); | |
| 2261 if((error = alGetError()) != AL_NO_ERROR) | |
| 2262 { | |
| 2263 fprintf(stderr, "26Testing error: %s\n", | |
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2264 alGetString(error)); |
| 0 | 2265 } |
| 2266 alSourceRewind(ALmixer_Channel_List[i].alsource); | |
| 2267 if((error = alGetError()) != AL_NO_ERROR) | |
| 2268 { | |
| 2269 ALmixer_SetError("%s", | |
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2270 alGetString(error) ); |
| 0 | 2271 retval = -1; |
| 2272 } | |
| 2273 /* Need to resume playback if it was originally playing */ | |
| 2274 if(AL_PLAYING == state) | |
| 2275 { | |
| 2276 alSourcePlay(ALmixer_Channel_List[i].alsource); | |
| 2277 if((error = alGetError()) != AL_NO_ERROR) | |
| 2278 { | |
| 2279 ALmixer_SetError("%s", | |
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2280 alGetString(error) ); |
| 0 | 2281 retval = -1; |
| 2282 } | |
| 2283 } | |
| 2284 else if(AL_PAUSED == state) | |
| 2285 { | |
| 2286 /* HACK: The problem is that when paused, after | |
| 2287 * the Rewind, I can't get it off the INITIAL | |
| 2288 * state without restarting | |
| 2289 */ | |
| 2290 alSourcePlay(ALmixer_Channel_List[i].alsource); | |
| 2291 if((error = alGetError()) != AL_NO_ERROR) | |
| 2292 { | |
| 2293 fprintf(stderr, "27Testing error: %s\n", | |
|
2
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diff
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|
2294 alGetString(error)); |
| 0 | 2295 } |
| 2296 alSourcePause(ALmixer_Channel_List[i].alsource); | |
| 2297 if((error = alGetError()) != AL_NO_ERROR) | |
| 2298 { | |
| 2299 ALmixer_SetError("%s", | |
|
2
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1
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|
2300 alGetString(error) ); |
| 0 | 2301 retval = -1; |
| 2302 } | |
| 2303 } | |
| 2304 } | |
| 2305 else | |
| 2306 { | |
| 2307 /* Streamed data is different. Rewinding the channel | |
| 2308 * does no good. Rewinding the data will have an | |
| 2309 * effect, but it will be lagged based on how | |
| 2310 * much data is queued. Recommend users call Halt | |
| 2311 * before rewind if they want immediate results. | |
| 2312 */ | |
|
12
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parents:
10
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|
2313 running_count += Internal_RewindData(ALmixer_Channel_List[i].almixer_data); |
| 0 | 2314 } |
| 2315 } | |
| 2316 } | |
| 2317 } | |
|
12
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|
2318 if(-1 == retval) |
|
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diff
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|
2319 { |
|
bfe90b4f3d87
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10
diff
changeset
|
2320 return -1; |
|
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diff
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|
2321 } |
|
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parents:
10
diff
changeset
|
2322 else |
|
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10
diff
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|
2323 { |
|
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10
diff
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|
2324 return running_count; |
|
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|
2325 } |
|
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|
2326 |
| 0 | 2327 } |
| 2328 | |
| 2329 | |
|
2
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diff
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|
2330 static ALint Internal_RewindSource(ALuint source) |
|
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|
2331 { |
|
279d0427ef26
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|
2332 ALint channel; |
| 0 | 2333 if(0 == source) |
| 2334 { | |
|
20
9365e714fc4b
Added SeekChannel, SeekSource.
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16
diff
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|
2335 return Internal_RewindChannel(-1); |
| 0 | 2336 } |
| 2337 | |
| 2338 channel = Internal_GetChannel(source); | |
| 2339 if(-1 == channel) | |
| 2340 { | |
| 2341 ALmixer_SetError("Cannot rewind source: %s", ALmixer_GetError()); | |
| 2342 return 0; | |
| 2343 } | |
|
20
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
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|
2344 return Internal_RewindChannel(channel); |
|
2
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|
2345 } |
|
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|
2346 |
|
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|
2347 |
|
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|
2348 |
|
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|
2349 |
|
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|
2350 |
|
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diff
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|
2351 static ALint Internal_PlayChannelTimed(ALint channel, ALmixer_Data* data, ALint loops, ALint ticks) |
|
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|
2352 { |
|
279d0427ef26
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diff
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|
2353 ALenum error; |
|
279d0427ef26
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1
diff
changeset
|
2354 int ret_flag = 0; |
|
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1
diff
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|
2355 if(NULL == data) |
|
279d0427ef26
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1
diff
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|
2356 { |
|
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diff
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|
2357 ALmixer_SetError("Can't play because data is NULL\n"); |
|
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|
2358 return -1; |
|
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diff
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|
2359 } |
|
279d0427ef26
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diff
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|
2360 |
|
279d0427ef26
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1
diff
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|
2361 /* There isn't a good way to share streamed files because |
|
279d0427ef26
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1
diff
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|
2362 * the decoded data doesn't stick around. |
|
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parents:
1
diff
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|
2363 * You must "Load" a brand new instance of |
|
279d0427ef26
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1
diff
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|
2364 * the data. If you try using the same data, |
|
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1
diff
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|
2365 * bad things may happen. This check will attempt |
|
279d0427ef26
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1
diff
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|
2366 * to prevent sharing |
|
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1
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|
2367 */ |
|
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1
diff
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|
2368 if(0 == data->decoded_all) |
|
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|
2369 { |
|
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diff
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|
2370 if(data->in_use) |
|
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1
diff
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|
2371 { |
|
279d0427ef26
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1
diff
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|
2372 ALmixer_SetError("Can't play shared streamed sample because it is already in use"); |
|
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1
diff
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|
2373 return -1; |
|
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diff
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|
2374 } |
|
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diff
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|
2375 |
|
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1
diff
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|
2376 /* Make sure SDL_sound sample is not at EOF. |
|
279d0427ef26
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diff
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|
2377 * This mainly affects streamed files, |
|
279d0427ef26
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1
diff
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|
2378 * so the check is placed here |
|
279d0427ef26
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diff
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|
2379 */ |
|
279d0427ef26
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diff
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|
2380 if(data->eof) |
|
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1
diff
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|
2381 { |
|
279d0427ef26
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diff
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|
2382 if( -1 == Internal_RewindData(data) ) |
|
279d0427ef26
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1
diff
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|
2383 { |
|
279d0427ef26
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diff
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|
2384 ALmixer_SetError("Can't play sample because it is at EOF and cannot rewind"); |
|
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1
diff
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|
2385 return -1; |
|
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1
diff
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|
2386 } |
|
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parents:
1
diff
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|
2387 } |
|
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diff
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|
2388 } |
|
279d0427ef26
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1
diff
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|
2389 /* We need to provide the user with the first available channel */ |
|
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1
diff
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|
2390 if(-1 == channel) |
|
279d0427ef26
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1
diff
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|
2391 { |
|
279d0427ef26
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diff
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|
2392 ALint i; |
|
279d0427ef26
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1
diff
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|
2393 for(i=Number_of_Reserve_Channels_global; i<Number_of_Channels_global; i++) |
|
279d0427ef26
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diff
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|
2394 { |
|
279d0427ef26
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parents:
1
diff
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|
2395 if(0 == ALmixer_Channel_List[i].channel_in_use) |
|
279d0427ef26
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1
diff
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|
2396 { |
|
279d0427ef26
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1
diff
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|
2397 channel = i; |
|
279d0427ef26
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1
diff
changeset
|
2398 break; |
|
279d0427ef26
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1
diff
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|
2399 } |
|
279d0427ef26
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diff
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|
2400 } |
|
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1
diff
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|
2401 /* if we couldn't find a channel, return an error */ |
|
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1
diff
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|
2402 if(i == Number_of_Channels_global) |
|
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1
diff
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|
2403 { |
|
279d0427ef26
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diff
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|
2404 ALmixer_SetError("No channels available for playing"); |
|
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1
diff
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|
2405 return -1; |
|
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1
diff
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|
2406 } |
|
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diff
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|
2407 } |
|
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diff
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|
2408 /* If we didn't assign the channel number, make sure it's not |
|
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diff
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|
2409 * out of bounds or in use */ |
|
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diff
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|
2410 else |
|
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|
2411 { |
|
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|
2412 if(channel >= Number_of_Channels_global) |
|
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|
2413 { |
|
279d0427ef26
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1
diff
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|
2414 ALmixer_SetError("Requested channel (%d) exceeds maximum channel (%d) because only %d channels are allocated", channel, Number_of_Channels_global-1, Number_of_Channels_global); |
|
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|
2415 return -1; |
|
279d0427ef26
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|
2416 } |
|
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diff
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|
2417 else if(ALmixer_Channel_List[channel].channel_in_use) |
|
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1
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|
2418 { |
|
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1
diff
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|
2419 ALmixer_SetError("Requested channel (%d) is in use", channel, Number_of_Channels_global-1, Number_of_Channels_global); |
|
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diff
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|
2420 return -1; |
|
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1
diff
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|
2421 } |
|
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1
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|
2422 } |
|
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1
diff
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|
2423 /* Make sure the user doesn't enter some meaningless value */ |
|
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1
diff
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|
2424 if(loops < -1) |
|
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|
2425 { |
|
279d0427ef26
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|
2426 loops = -1; |
|
279d0427ef26
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1
diff
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|
2427 } |
|
279d0427ef26
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1
diff
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|
2428 |
|
279d0427ef26
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diff
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|
2429 /* loops will probably have to change to be controlled by SDL_Sound */ |
|
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1
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|
2430 |
|
279d0427ef26
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1
diff
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|
2431 /* Set up the initial values for playing */ |
|
279d0427ef26
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1
diff
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|
2432 ALmixer_Channel_List[channel].channel_in_use = 1; |
|
279d0427ef26
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1
diff
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|
2433 data->in_use++; |
|
279d0427ef26
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1
diff
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|
2434 |
|
279d0427ef26
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diff
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|
2435 /* Shouldn't need updating until a callback is fired |
|
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1
diff
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|
2436 * (assuming that we call Play in this function |
|
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1
diff
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|
2437 */ |
|
279d0427ef26
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diff
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|
2438 ALmixer_Channel_List[channel].needs_stream = 0; |
|
279d0427ef26
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diff
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|
2439 ALmixer_Channel_List[channel].almixer_data = data; |
|
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1
diff
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|
2440 ALmixer_Channel_List[channel].start_time = ALmixer_GetTicks(); |
|
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|
2441 |
|
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1
diff
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|
2442 /* If user entered -1 (or less), set to -1 */ |
|
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diff
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|
2443 if(ticks < 0) |
|
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diff
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|
2444 { |
|
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diff
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|
2445 ALmixer_Channel_List[channel].expire_ticks = -1; |
|
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|
2446 } |
|
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diff
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|
2447 else |
|
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diff
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|
2448 { |
|
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diff
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|
2449 ALmixer_Channel_List[channel].expire_ticks = ticks; |
|
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|
2450 } |
|
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diff
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|
2451 |
|
279d0427ef26
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diff
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|
2452 |
|
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diff
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|
2453 ALmixer_Channel_List[channel].halted = 0; |
|
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diff
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|
2454 ALmixer_Channel_List[channel].paused = 0; |
|
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|
2455 |
|
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diff
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|
2456 /* Ran just use OpenAL to control loops if predecoded and infinite */ |
|
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diff
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|
2457 ALmixer_Channel_List[channel].loops = loops; |
|
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diff
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|
2458 if( (-1 == loops) && (data->decoded_all) ) |
|
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|
2459 { |
|
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diff
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|
2460 alSourcei(ALmixer_Channel_List[channel].alsource, AL_LOOPING, AL_TRUE); |
|
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|
2461 } |
|
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diff
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|
2462 else |
|
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1
diff
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|
2463 { |
|
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1
diff
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|
2464 alSourcei(ALmixer_Channel_List[channel].alsource, AL_LOOPING, AL_FALSE); |
|
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|
2465 } |
|
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1
diff
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|
2466 if((error = alGetError()) != AL_NO_ERROR) |
|
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diff
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|
2467 { |
|
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diff
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|
2468 fprintf(stderr, "13Testing error: %s\n", |
|
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1
diff
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|
2469 alGetString(error)); |
|
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diff
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|
2470 } |
|
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1
diff
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|
2471 |
|
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parents:
1
diff
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|
2472 #if 0 |
|
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diff
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|
2473 /* Because of the corner case, predecoded |
|
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1
diff
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|
2474 * files must add +1 to the loops. |
|
279d0427ef26
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diff
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|
2475 * Streams do not have this problem |
|
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1
diff
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|
2476 * because they can use the eof flag to |
|
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1
diff
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|
2477 * avoid the conflict. |
|
279d0427ef26
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1
diff
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|
2478 * Sharing data chunks prevents the use of the eof flag. |
|
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diff
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|
2479 * Since streams, cannot share, only predecoded |
|
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diff
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|
2480 * files are affected |
|
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diff
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|
2481 */ |
|
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1
diff
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|
2482 if(data->decoded_all) |
|
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diff
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|
2483 { |
|
279d0427ef26
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1
diff
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|
2484 /* Corner Case: Now that play calls are pushed |
|
279d0427ef26
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1
diff
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|
2485 * off to update(), the start call must |
|
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1
diff
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|
2486 * also come through here. So, start loops |
|
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1
diff
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|
2487 * must be +1 |
|
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diff
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|
2488 */ |
|
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1
diff
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|
2489 if(-1 == loops) |
|
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parents:
1
diff
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|
2490 { |
|
279d0427ef26
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parents:
1
diff
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|
2491 /* -1 is a special case, and you don't want |
|
279d0427ef26
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1
diff
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|
2492 * to add +1 to it */ |
|
279d0427ef26
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1
diff
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|
2493 ALmixer_Channel_List[channel].loops = -1; |
|
279d0427ef26
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parents:
1
diff
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|
2494 alSourcei(ALmixer_Channel_List[channel].alsource, AL_LOOPING, AL_TRUE); |
|
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diff
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|
2495 } |
|
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parents:
1
diff
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|
2496 else |
|
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parents:
1
diff
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|
2497 { |
|
279d0427ef26
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parents:
1
diff
changeset
|
2498 ALmixer_Channel_List[channel].loops = loops+1; |
|
279d0427ef26
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parents:
1
diff
changeset
|
2499 alSourcei(ALmixer_Channel_List[channel].alsource, AL_LOOPING, AL_FALSE); |
|
279d0427ef26
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1
diff
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|
2500 } |
|
279d0427ef26
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1
diff
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|
2501 } |
|
279d0427ef26
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parents:
1
diff
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|
2502 else |
|
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parents:
1
diff
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|
2503 { |
|
279d0427ef26
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parents:
1
diff
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|
2504 ALmixer_Channel_List[channel].loops = loops; |
|
279d0427ef26
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parents:
1
diff
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|
2505 /* Can we really loop on streamed data? */ |
|
279d0427ef26
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1
diff
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|
2506 alSourcei(ALmixer_Channel_List[channel].alsource, AL_LOOPING, AL_TRUE); |
|
279d0427ef26
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1
diff
changeset
|
2507 } |
|
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1
diff
changeset
|
2508 #endif |
|
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1
diff
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|
2509 |
|
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1
diff
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|
2510 /* Should I start playing here or pass the buck to update? */ |
|
279d0427ef26
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1
diff
changeset
|
2511 /* Unlike SDL_SoundMixer, I think I'll do it here because |
|
279d0427ef26
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1
diff
changeset
|
2512 * this library isn't a *total* hack and OpenAL has more |
|
279d0427ef26
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1
diff
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|
2513 * built in functionality I need, so less needs to be |
|
279d0427ef26
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1
diff
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|
2514 * controlled and directed through the update function. |
|
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diff
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|
2515 * The downside is less functionality is centralized. |
|
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1
diff
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|
2516 * The upside is that the update function should be |
|
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1
diff
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|
2517 * easier to maintain. |
|
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1
diff
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|
2518 */ |
|
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1
diff
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|
2519 |
|
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diff
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|
2520 /* Clear the error flag */ |
|
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diff
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|
2521 alGetError(); |
|
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diff
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|
2522 if(data->decoded_all) |
|
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1
diff
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|
2523 { |
|
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1
diff
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|
2524 /* Bind the data to the source */ |
|
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1
diff
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|
2525 alSourcei( |
|
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1
diff
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|
2526 ALmixer_Channel_List[channel].alsource, |
|
279d0427ef26
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1
diff
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|
2527 AL_BUFFER, |
|
279d0427ef26
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1
diff
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|
2528 data->buffer[0]); |
|
279d0427ef26
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1
diff
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|
2529 if((error = alGetError()) != AL_NO_ERROR) |
|
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1
diff
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|
2530 { |
|
279d0427ef26
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1
diff
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|
2531 ALmixer_SetError("Could not bind data to source: %s", |
|
279d0427ef26
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1
diff
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|
2532 alGetString(error) ); |
|
279d0427ef26
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diff
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|
2533 Clean_Channel(channel); |
|
279d0427ef26
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diff
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|
2534 return -1; |
|
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1
diff
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|
2535 } |
|
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1
diff
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|
2536 |
|
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1
diff
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|
2537 /* Make data available if access_data is enabled */ |
|
279d0427ef26
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1
diff
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|
2538 Invoke_Predecoded_Channel_Data_Callback(channel, data); |
|
279d0427ef26
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1
diff
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|
2539 } |
|
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1
diff
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|
2540 else |
|
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1
diff
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|
2541 { |
|
279d0427ef26
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1
diff
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|
2542 /* Need to use the streaming buffer for binding */ |
|
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1
diff
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|
2543 |
|
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diff
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|
2544 ALuint bytes_returned; |
|
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1
diff
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|
2545 ALuint j; |
|
279d0427ef26
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1
diff
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|
2546 data->num_buffers_in_use=0; |
|
279d0427ef26
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1
diff
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|
2547 /****** MODIFICATION must go here *********/ |
|
279d0427ef26
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1
diff
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|
2548 /* Since buffer queuing is pushed off until here to |
|
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1
diff
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|
2549 * avoid buffer conflicts, we must start reading |
|
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1
diff
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|
2550 * data here. First we make sure we have at least one |
|
279d0427ef26
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1
diff
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|
2551 * packet. Then we queue up until we hit our limit. |
|
279d0427ef26
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1
diff
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|
2552 */ |
|
279d0427ef26
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parents:
1
diff
changeset
|
2553 bytes_returned = GetMoreData( |
|
279d0427ef26
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1
diff
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|
2554 data, |
|
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|
2555 data->buffer[0]); |
|
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|
2556 if(0 == bytes_returned) |
|
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|
2557 { |
|
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|
2558 /* No data or error */ |
|
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diff
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|
2559 ALmixer_SetError("Could not get data for streamed PlayChannel: %s", ALmixer_GetError()); |
|
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diff
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|
2560 Clean_Channel(channel); |
|
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diff
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|
2561 return -1; |
|
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|
2562 } |
|
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diff
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|
2563 /* Increment the number of buffers in use */ |
|
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diff
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|
2564 data->num_buffers_in_use++; |
|
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|
2565 |
|
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|
2566 |
|
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|
2567 /* Now we need to fill up the rest of the buffers. |
|
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diff
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|
2568 * There is a corner case where we run out of data |
|
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|
2569 * before the last buffer is filled. |
|
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diff
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|
2570 * Stop conditions are we run out of |
|
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diff
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|
2571 * data or we max out our preload buffers. |
|
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|
2572 */ |
|
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|
2573 |
|
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|
2574 /* |
|
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|
2575 fprintf(stderr, "Filling buffer #%d (AL id is %d)\n", 0, data->buffer[0]); |
|
6
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|
2576 */ |
|
2
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|
2577 for(j=1; j<data->num_startup_buffers; j++) |
|
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|
2578 { |
|
6
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|
2579 /* |
|
2
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|
2580 fprintf(stderr, "Filling buffer #%d (AL id is %d)\n", j, data->buffer[j]); |
|
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|
2581 fprintf(stderr, ">>>>>>>>>>>>>>>>>>HACK for GetMoreData2\n"); |
|
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|
2582 */ |
|
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|
2583 bytes_returned = GetMoreData( |
|
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|
2584 data, |
|
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|
2585 data->buffer[j]); |
|
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|
2586 /* |
|
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|
2587 * This might be a problem. I made a mistake with the types. I accidentally |
|
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|
2588 * made the bytes returned an ALint and returned -1 on error. |
|
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|
2589 * Bytes returned should be a ALuint, so now I no longer have a -1 case |
|
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|
2590 * to check. I hope I didn't break anything here |
|
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|
2591 */ |
|
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|
2592 #if 0 |
|
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|
2593 if(bytes_returned < 0) |
|
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|
2594 { |
|
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|
2595 /* Error found */ |
|
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diff
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|
2596 ALmixer_SetError("Could not get data for additional startup buffers for PlayChannel: %s", ALmixer_GetError()); |
|
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|
2597 /* We'll continue on because we do have some valid data */ |
|
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diff
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|
2598 ret_flag = -1; |
|
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|
2599 break; |
|
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|
2600 } |
|
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|
2601 else if(0 == bytes_returned) |
|
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|
2602 #endif |
|
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|
2603 if(0 == bytes_returned) |
|
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|
2604 { |
|
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|
2605 /* No more data to buffer */ |
|
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|
2606 /* Check for loops */ |
|
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diff
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|
2607 if( ALmixer_Channel_List[channel].loops != 0 ) |
|
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|
2608 { |
|
6
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|
2609 /* |
|
2
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|
2610 fprintf(stderr, "Need to rewind. In RAMPUP, handling loop\n"); |
|
6
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|
2611 */ |
|
2
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|
2612 if(0 == Sound_Rewind(data->sample)) |
|
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|
2613 { |
|
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|
2614 fprintf(stderr, "error in rewind\n"); |
|
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|
2615 ALmixer_SetError( Sound_GetError() ); |
|
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|
2616 ALmixer_Channel_List[channel].loops = 0; |
|
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|
2617 ret_flag = -1; |
|
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|
2618 /* We'll continue on because we do have some valid data */ |
|
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|
2619 break; |
|
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|
2620 } |
|
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|
2621 /* Remember to reset the data->eof flag */ |
|
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|
2622 data->eof = 0; |
|
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|
2623 if(ALmixer_Channel_List[channel].loops > 0) |
|
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|
2624 { |
|
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|
2625 ALmixer_Channel_List[channel].loops--; |
|
6
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|
2626 /* |
|
2
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|
2627 fprintf(stderr, "Inside 000 >>>>>>>>>>Loops=%d\n", ALmixer_Channel_List[channel].loops); |
|
6
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2628 */ |
|
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|
2629 } |
|
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|
2630 /* Would like to redo the loop, but due to |
|
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|
2631 * Sound_Rewind() bugs, we would risk falling |
|
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|
2632 * into an infinite loop |
|
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|
2633 */ |
|
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|
2634 bytes_returned = GetMoreData( |
|
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|
2635 data, |
|
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|
2636 data->buffer[j]); |
|
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|
2637 if(bytes_returned <= 0) |
|
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|
2638 { |
|
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|
2639 ALmixer_SetError("Could not get data: %s", ALmixer_GetError()); |
|
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|
2640 /* We'll continue on because we do have some valid data */ |
|
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|
2641 ret_flag = -1; |
|
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|
2642 break; |
|
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|
2643 } |
|
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2644 } |
|
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|
2645 else |
|
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|
2646 { |
|
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|
2647 /* No loops to do so quit here */ |
|
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|
2648 break; |
|
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|
2649 } |
|
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|
2650 } |
|
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|
2651 /* Increment the number of buffers in use */ |
|
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|
2652 data->num_buffers_in_use++; |
|
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|
2653 } |
|
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|
2654 /* |
|
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|
2655 fprintf(stderr, "In PlayChannel, about to queue: source=%d, num_buffers_in_use=%d\n", |
|
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|
2656 ALmixer_Channel_List[channel].alsource, |
|
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|
2657 data->num_buffers_in_use); |
|
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|
2658 */ |
|
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|
2659 |
|
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|
2660 alSourceQueueBuffers( |
|
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|
2661 ALmixer_Channel_List[channel].alsource, |
|
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|
2662 data->num_buffers_in_use, |
|
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|
2663 data->buffer); |
|
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|
2664 if((error = alGetError()) != AL_NO_ERROR) |
|
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|
2665 { |
|
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|
2666 ALmixer_SetError("Could not bind data to source: %s", |
|
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|
2667 alGetString(error) ); |
|
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|
2668 Clean_Channel(channel); |
|
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|
2669 return -1; |
|
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|
2670 } |
|
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|
2671 /* This is part of the hideous Nvidia workaround. In order to figure out |
|
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|
2672 * which buffer to show during callbacks (for things like |
|
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|
2673 * o-scopes), I must keep a copy of the buffers that are queued in my own |
|
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|
2674 * data structure. This code will be called only if |
|
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|
2675 * "access_data" was set, indicated by whether the queue is NULL. |
|
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|
2676 */ |
|
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|
2677 if(data->circular_buffer_queue != NULL) |
|
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|
2678 { |
|
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|
2679 ALuint k; |
|
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2680 ALuint queue_ret_flag; |
|
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|
2681 for(k=0; k<data->num_buffers_in_use; k++) |
|
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|
2682 { |
|
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|
2683 // fprintf(stderr, "56c: CircularQueue_PushBack.\n"); |
|
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|
2684 queue_ret_flag = CircularQueueUnsignedInt_PushBack(data->circular_buffer_queue, data->buffer[k]); |
|
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|
2685 if(0 == queue_ret_flag) |
|
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|
2686 { |
|
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|
2687 fprintf(stderr, "Serious internal error: CircularQueue could not push into queue.\n"); |
|
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|
2688 ALmixer_SetError("Serious internal error: CircularQueue failed to push into queue"); |
|
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|
2689 } |
|
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|
2690 /* |
|
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|
2691 else |
|
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|
2692 { |
|
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|
2693 fprintf(stderr, "Queue in PlayTimed\n"); |
|
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|
2694 CircularQueueUnsignedInt_Print(data->circular_buffer_queue); |
|
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|
2695 } |
|
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|
2696 */ |
|
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|
2697 } |
|
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|
2698 } |
|
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|
2699 |
|
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|
2700 |
|
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|
2701 /****** END **********/ |
|
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2702 } |
|
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|
2703 /* We have finished loading the data (predecoded or queued) |
|
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2704 * so now we can play |
|
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|
2705 */ |
|
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|
2706 alSourcePlay(ALmixer_Channel_List[channel].alsource); |
|
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|
2707 if((error = alGetError()) != AL_NO_ERROR) |
|
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|
2708 { |
|
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|
2709 ALmixer_SetError("Play failed: %s", |
|
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|
2710 alGetString(error) ); |
|
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|
2711 Clean_Channel(channel); |
|
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|
2712 return -1; |
|
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|
2713 } |
|
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|
2714 |
|
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|
2715 /* Add to the counter that something is playing */ |
|
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|
2716 Is_Playing_global++; |
|
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2717 if(-1 == ret_flag) |
|
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2718 { |
|
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|
2719 fprintf(stderr, "BACKDOOR ERROR >>>>>>>>>>>>>>>>>>\n"); |
|
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|
2720 return -1; |
|
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|
2721 } |
|
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|
2722 return channel; |
|
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|
2723 } |
|
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|
2724 |
|
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2725 |
|
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|
2726 /* In case the user wants to specify a source instead of a channel, |
|
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2727 * they may use this function. This function will look up the |
|
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|
2728 * source-to-channel map, and convert the call into a |
|
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2729 * PlayChannelTimed() function call. |
|
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|
2730 * Returns the channel it's being played on. |
|
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|
2731 * Note: If you are prefer this method, then you need to be careful |
|
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2732 * about using PlayChannel, particularly if you request the |
|
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|
2733 * first available channels because source and channels have |
|
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|
2734 * a one-to-one mapping in this API. It is quite easy for |
|
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|
2735 * a channel/source to already be in use because of this. |
|
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2736 * In this event, an error message will be returned to you. |
|
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2737 */ |
|
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|
2738 static ALuint Internal_PlaySourceTimed(ALuint source, ALmixer_Data* data, ALint loops, ALint ticks) |
|
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|
2739 { |
|
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|
2740 ALint channel; |
|
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|
2741 ALint retval; |
|
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|
2742 if(0 == source) |
|
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|
2743 { |
|
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|
2744 retval = Internal_PlayChannelTimed(-1, data, loops, ticks); |
|
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|
2745 if(-1 == retval) |
|
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2746 { |
|
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|
2747 return 0; |
|
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|
2748 } |
|
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|
2749 else |
|
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|
2750 { |
|
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|
2751 return Internal_GetSource(retval); |
|
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2752 } |
|
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|
2753 } |
|
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|
2754 |
|
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|
2755 channel = Internal_GetChannel(source); |
|
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2756 if(-1 == channel) |
|
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2757 { |
|
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|
2758 ALmixer_SetError("Cannot Play source: %s", ALmixer_GetError()); |
|
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2759 return 0; |
|
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2760 } |
|
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|
2761 retval = Internal_PlayChannelTimed(channel, data, loops, ticks); |
|
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2762 if(-1 == retval) |
|
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2763 { |
|
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|
2764 return 0; |
|
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|
2765 } |
|
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|
2766 else |
|
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|
2767 { |
|
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|
2768 return source; |
|
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|
2769 } |
|
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|
2770 /* make compiler happy */ |
|
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|
2771 return 0; |
|
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|
2772 } |
|
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|
2773 |
| 0 | 2774 |
| 2775 | |
| 2776 | |
| 2777 /* Returns the channel or number of channels actually paused */ | |
| 2778 | |
|
2
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|
2779 static ALint Internal_PauseChannel(ALint channel) |
| 0 | 2780 { |
| 2781 ALenum error; | |
| 2782 ALint state; | |
|
2
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|
2783 ALint retval = 0; |
|
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|
2784 ALint counter = 0; |
| 0 | 2785 |
| 2786 if(channel >= Number_of_Channels_global) | |
| 2787 { | |
| 2788 ALmixer_SetError("Cannot pause channel %d because it exceeds maximum number of channels (%d)\n", channel, Number_of_Channels_global); | |
| 2789 return -1; | |
| 2790 } | |
| 2791 | |
| 2792 if((error = alGetError()) != AL_NO_ERROR) | |
| 2793 { | |
| 2794 fprintf(stderr, "28Testing error: %s\n", | |
|
2
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|
2795 alGetString(error)); |
| 0 | 2796 } |
| 2797 /* Clear error */ | |
| 2798 alGetError(); | |
| 2799 | |
| 2800 /* If the user specified a specific channel */ | |
| 2801 if(channel >= 0) | |
| 2802 { | |
| 2803 /* only need to process channel if in use */ | |
| 2804 if(ALmixer_Channel_List[channel].channel_in_use) | |
| 2805 { | |
| 2806 /* We don't want to repause if already | |
| 2807 * paused because the fadeout/expire | |
| 2808 * timing will get messed up | |
| 2809 */ | |
| 2810 alGetSourcei( | |
| 2811 ALmixer_Channel_List[channel].alsource, | |
| 2812 AL_SOURCE_STATE, &state | |
| 2813 ); | |
| 2814 if((error = alGetError()) != AL_NO_ERROR) | |
| 2815 { | |
| 2816 fprintf(stderr, "29Testing error: %s\n", | |
|
2
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|
2817 alGetString(error)); |
| 0 | 2818 } |
| 2819 if(AL_PLAYING == state) | |
| 2820 { | |
| 2821 /* Count the actual number of channels being paused */ | |
| 2822 counter++; | |
| 2823 | |
| 2824 alSourcePause(ALmixer_Channel_List[channel].alsource); | |
| 2825 if((error = alGetError()) != AL_NO_ERROR) | |
| 2826 { | |
| 2827 ALmixer_SetError("%s", | |
|
2
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|
2828 alGetString(error) ); |
| 0 | 2829 retval = -1; |
| 2830 } | |
| 2831 /* We need to pause the expire time count down */ | |
| 2832 if(ALmixer_Channel_List[channel].expire_ticks != -1) | |
| 2833 { | |
|
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2834 ALuint current_time = ALmixer_GetTicks(); |
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|
2835 ALuint diff_time; |
| 0 | 2836 diff_time = current_time - |
| 2837 ALmixer_Channel_List[channel].start_time; | |
| 2838 /* When we unpause, we will want to reset | |
| 2839 * the start time so we can continue | |
| 2840 * to base calculations off GetTicks(). | |
| 2841 * This means we need to subtract the amount | |
| 2842 * of time already used up from expire_ticks. | |
| 2843 */ | |
| 2844 ALmixer_Channel_List[channel].expire_ticks = | |
| 2845 ALmixer_Channel_List[channel].expire_ticks - | |
| 2846 diff_time; | |
| 2847 /* Because -1 is a special value, we can't | |
| 2848 * allow the time to go negative | |
| 2849 */ | |
| 2850 if(ALmixer_Channel_List[channel].expire_ticks < 0) | |
| 2851 { | |
| 2852 ALmixer_Channel_List[channel].expire_ticks = 0; | |
| 2853 } | |
| 2854 } | |
| 2855 /* Do the same as expire time for fading */ | |
| 2856 if(ALmixer_Channel_List[channel].fade_enabled) | |
| 2857 { | |
|
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2858 ALuint current_time = ALmixer_GetTicks(); |
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2859 ALuint diff_time; |
| 0 | 2860 diff_time = current_time - |
| 2861 ALmixer_Channel_List[channel].fade_start_time; | |
| 2862 /* When we unpause, we will want to reset | |
| 2863 * the start time so we can continue | |
| 2864 * to base calculations off GetTicks(). | |
| 2865 * This means we need to subtract the amount | |
| 2866 * of time already used up from expire_ticks. | |
| 2867 */ | |
| 2868 ALmixer_Channel_List[channel].fade_expire_ticks = | |
| 2869 ALmixer_Channel_List[channel].fade_expire_ticks - | |
| 2870 diff_time; | |
| 2871 /* Don't allow the time to go negative */ | |
| 2872 if(ALmixer_Channel_List[channel].expire_ticks < 0) | |
| 2873 { | |
| 2874 ALmixer_Channel_List[channel].expire_ticks = 0; | |
| 2875 } | |
| 2876 } /* End fade check */ | |
| 2877 } /* End if PLAYING */ | |
| 2878 } /* End If in use */ | |
| 2879 } /* End specific channel */ | |
| 2880 /* The user wants to halt all channels */ | |
| 2881 else | |
| 2882 { | |
|
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2883 ALint i; |
| 0 | 2884 for(i=0; i<Number_of_Channels_global; i++) |
| 2885 { | |
| 2886 /* only need to process channel if in use */ | |
| 2887 if(ALmixer_Channel_List[i].channel_in_use) | |
| 2888 { | |
| 2889 /* We don't want to repause if already | |
| 2890 * paused because the fadeout/expire | |
| 2891 * timing will get messed up | |
| 2892 */ | |
| 2893 alGetSourcei( | |
| 2894 ALmixer_Channel_List[i].alsource, | |
| 2895 AL_SOURCE_STATE, &state | |
| 2896 ); | |
| 2897 if((error = alGetError()) != AL_NO_ERROR) | |
| 2898 { | |
| 2899 fprintf(stderr, "30Testing error: %s\n", | |
|
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2900 alGetString(error)); |
| 0 | 2901 } |
| 2902 if(AL_PLAYING == state) | |
| 2903 { | |
| 2904 /* Count the actual number of channels being paused */ | |
| 2905 counter++; | |
| 2906 | |
| 2907 alSourcePause(ALmixer_Channel_List[i].alsource); | |
| 2908 if((error = alGetError()) != AL_NO_ERROR) | |
| 2909 { | |
| 2910 ALmixer_SetError("%s", | |
|
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2911 alGetString(error) ); |
| 0 | 2912 retval = -1; |
| 2913 } | |
| 2914 /* We need to pause the expire time count down */ | |
| 2915 if(ALmixer_Channel_List[i].expire_ticks != -1) | |
| 2916 { | |
|
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2917 ALuint current_time = ALmixer_GetTicks(); |
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2918 ALuint diff_time; |
| 0 | 2919 diff_time = current_time - |
| 2920 ALmixer_Channel_List[i].start_time; | |
| 2921 /* When we unpause, we will want to reset | |
| 2922 * the start time so we can continue | |
| 2923 * to base calculations off GetTicks(). | |
| 2924 * This means we need to subtract the amount | |
| 2925 * of time already used up from expire_ticks. | |
| 2926 */ | |
| 2927 ALmixer_Channel_List[i].expire_ticks = | |
| 2928 ALmixer_Channel_List[i].expire_ticks - | |
| 2929 diff_time; | |
| 2930 /* Because -1 is a special value, we can't | |
| 2931 * allow the time to go negative | |
| 2932 */ | |
| 2933 if(ALmixer_Channel_List[i].expire_ticks < 0) | |
| 2934 { | |
| 2935 ALmixer_Channel_List[i].expire_ticks = 0; | |
| 2936 } | |
| 2937 } | |
| 2938 /* Do the same as expire time for fading */ | |
| 2939 if(ALmixer_Channel_List[i].fade_enabled) | |
| 2940 { | |
|
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2941 ALuint current_time = ALmixer_GetTicks(); |
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2942 ALuint diff_time; |
| 0 | 2943 diff_time = current_time - |
| 2944 ALmixer_Channel_List[i].fade_start_time; | |
| 2945 /* When we unpause, we will want to reset | |
| 2946 * the start time so we can continue | |
| 2947 * to base calculations off GetTicks(). | |
| 2948 * This means we need to subtract the amount | |
| 2949 * of time already used up from expire_ticks. | |
| 2950 */ | |
| 2951 ALmixer_Channel_List[i].fade_expire_ticks = | |
| 2952 ALmixer_Channel_List[i].fade_expire_ticks - | |
| 2953 diff_time; | |
| 2954 /* Don't allow the time to go negative */ | |
| 2955 if(ALmixer_Channel_List[i].expire_ticks < 0) | |
| 2956 { | |
| 2957 ALmixer_Channel_List[i].expire_ticks = 0; | |
| 2958 } | |
| 2959 } /* End fade check */ | |
| 2960 } /* End if PLAYING */ | |
| 2961 } /* End channel in use */ | |
| 2962 } /* End for-loop */ | |
| 2963 } | |
| 2964 if(-1 == retval) | |
| 2965 { | |
| 2966 return -1; | |
| 2967 } | |
| 2968 return counter; | |
| 2969 } | |
| 2970 | |
| 2971 /* Returns the channel or number of channels actually paused */ | |
|
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2972 static ALint Internal_PauseSource(ALuint source) |
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2973 { |
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|
2974 ALint channel; |
| 0 | 2975 if(0 == source) |
| 2976 { | |
| 2977 return Internal_PauseChannel(-1); | |
| 2978 } | |
| 2979 | |
| 2980 channel = Internal_GetChannel(source); | |
| 2981 if(-1 == channel) | |
| 2982 { | |
| 2983 ALmixer_SetError("Cannot pause source: %s", ALmixer_GetError()); | |
| 2984 return -1; | |
| 2985 } | |
| 2986 return Internal_PauseChannel(channel); | |
| 2987 } | |
| 2988 | |
| 2989 | |
| 2990 | |
|
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2991 static ALint Internal_ResumeChannel(ALint channel) |
| 0 | 2992 { |
| 2993 ALint state; | |
| 2994 ALenum error; | |
|
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2995 ALint retval = 0; |
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2996 ALint counter = 0; |
| 0 | 2997 |
| 2998 if(channel >= Number_of_Channels_global) | |
| 2999 { | |
| 3000 ALmixer_SetError("Cannot pause channel %d because it exceeds maximum number of channels (%d)\n", channel, Number_of_Channels_global); | |
| 3001 return -1; | |
| 3002 } | |
| 3003 | |
| 3004 if((error = alGetError()) != AL_NO_ERROR) | |
| 3005 { | |
| 3006 fprintf(stderr, "31Testing error: %s\n", | |
|
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3007 alGetString(error)); |
| 0 | 3008 } |
| 3009 /* Clear error */ | |
| 3010 alGetError(); | |
| 3011 | |
| 3012 /* If the user specified a specific channel */ | |
| 3013 if(channel >= 0) | |
| 3014 { | |
| 3015 /* only need to process channel if in use */ | |
| 3016 if(ALmixer_Channel_List[channel].channel_in_use) | |
| 3017 { | |
| 3018 alGetSourcei( | |
| 3019 ALmixer_Channel_List[channel].alsource, | |
| 3020 AL_SOURCE_STATE, &state | |
| 3021 ); | |
| 3022 if((error = alGetError()) != AL_NO_ERROR) | |
| 3023 { | |
| 3024 fprintf(stderr, "32Testing error: %s\n", | |
|
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3025 alGetString(error)); |
| 0 | 3026 } |
| 3027 if(AL_PAUSED == state) | |
| 3028 { | |
| 3029 /* Count the actual number of channels resumed */ | |
| 3030 counter++; | |
| 3031 | |
| 3032 /* We need to resume the expire time count down */ | |
| 3033 if(ALmixer_Channel_List[channel].expire_ticks != -1) | |
| 3034 { | |
|
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|
3035 ALmixer_Channel_List[channel].start_time = ALmixer_GetTicks(); |
| 0 | 3036 } |
| 3037 /* Do the same as expire time for fading */ | |
| 3038 if(ALmixer_Channel_List[channel].fade_enabled) | |
| 3039 { | |
|
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|
3040 ALmixer_Channel_List[channel].fade_start_time = ALmixer_GetTicks(); |
| 0 | 3041 } |
| 3042 | |
| 3043 alSourcePlay(ALmixer_Channel_List[channel].alsource); | |
| 3044 if((error = alGetError()) != AL_NO_ERROR) | |
| 3045 { | |
| 3046 ALmixer_SetError("%s", | |
|
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|
3047 alGetString(error) ); |
| 0 | 3048 retval = -1; |
| 3049 } | |
| 3050 } | |
| 3051 } | |
| 3052 } | |
| 3053 /* The user wants to halt all channels */ | |
| 3054 else | |
| 3055 { | |
|
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|
3056 ALint i; |
| 0 | 3057 for(i=0; i<Number_of_Channels_global; i++) |
| 3058 { | |
| 3059 /* only need to process channel if in use */ | |
| 3060 if(ALmixer_Channel_List[i].channel_in_use) | |
| 3061 { | |
| 3062 alGetSourcei( | |
| 3063 ALmixer_Channel_List[i].alsource, | |
| 3064 AL_SOURCE_STATE, &state | |
| 3065 ); | |
| 3066 if((error = alGetError()) != AL_NO_ERROR) | |
| 3067 { | |
| 3068 fprintf(stderr, "33Testing error: %s\n", | |
|
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3069 alGetString(error)); |
| 0 | 3070 } |
| 3071 if(AL_PAUSED == state) | |
| 3072 { | |
| 3073 /* Count the actual number of channels resumed */ | |
| 3074 counter++; | |
| 3075 | |
| 3076 /* We need to resume the expire time count down */ | |
| 3077 if(ALmixer_Channel_List[i].expire_ticks != -1) | |
| 3078 { | |
|
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3079 ALmixer_Channel_List[i].start_time = ALmixer_GetTicks(); |
| 0 | 3080 } |
| 3081 /* Do the same as expire time for fading */ | |
| 3082 if(ALmixer_Channel_List[i].fade_enabled) | |
| 3083 { | |
|
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|
3084 ALmixer_Channel_List[i].fade_start_time = ALmixer_GetTicks(); |
| 0 | 3085 } |
| 3086 | |
| 3087 alSourcePlay(ALmixer_Channel_List[i].alsource); | |
| 3088 if((error = alGetError()) != AL_NO_ERROR) | |
| 3089 { | |
| 3090 ALmixer_SetError("%s", | |
|
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|
3091 alGetString(error) ); |
| 0 | 3092 retval = -1; |
| 3093 } | |
| 3094 } | |
| 3095 } | |
| 3096 } | |
| 3097 } | |
| 3098 if(-1 == retval) | |
| 3099 { | |
| 3100 return -1; | |
| 3101 } | |
| 3102 return counter; | |
| 3103 } | |
| 3104 | |
| 3105 | |
|
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|
3106 static ALint Internal_ResumeSource(ALuint source) |
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3107 { |
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|
3108 ALint channel; |
| 0 | 3109 if(0 == source) |
| 3110 { | |
| 3111 return Internal_ResumeChannel(-1); | |
| 3112 } | |
| 3113 | |
| 3114 channel = Internal_GetChannel(source); | |
| 3115 if(-1 == channel) | |
| 3116 { | |
| 3117 ALmixer_SetError("Cannot resume source: %s", ALmixer_GetError()); | |
| 3118 return -1; | |
| 3119 } | |
| 3120 return Internal_ResumeChannel(channel); | |
| 3121 } | |
| 3122 | |
| 3123 | |
| 3124 /* Might consider setting eof to 0 as a "feature" | |
| 3125 * This will allow seek to end to stay there because | |
| 3126 * Play automatically rewinds if at the end */ | |
|
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3127 static ALboolean Internal_SeekData(ALmixer_Data* data, ALuint msec) |
|
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3128 { |
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|
3129 ALint retval; |
| 0 | 3130 |
| 3131 if(NULL == data) | |
| 3132 { | |
| 3133 ALmixer_SetError("Cannot Seek because data is NULL"); | |
|
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3134 return AL_FALSE; |
| 0 | 3135 } |
| 3136 | |
| 3137 /* Seek for predecoded files involves moving the chunk pointer around */ | |
| 3138 if(data->decoded_all) | |
| 3139 { | |
|
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3140 ALuint byte_position; |
| 0 | 3141 |
| 3142 /* OpenAL doesn't seem to like it if I change the buffer | |
| 3143 * while playing (crashes), so I must require that Seek only | |
| 3144 * be done when the data is not in use. | |
| 3145 * Since data may be shared among multiple sources, | |
| 3146 * I can't shut them down myself, so I have to return an error. | |
| 3147 */ | |
| 3148 if(data->in_use) | |
| 3149 { | |
| 3150 ALmixer_SetError("Cannot seek on predecoded data while instances are playing"); | |
|
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3151 return AL_FALSE; |
| 0 | 3152 } |
| 3153 #if 0 | |
| 3154 #if defined(DISABLE_PREDECODED_SEEK) | |
| 3155 ALmixer_SetError("Seek support for predecoded samples was not compiled in"); | |
|
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3156 return AL_FALSE; |
| 0 | 3157 |
| 3158 #elif !defined(DISABLE_SEEK_MEMORY_OPTIMIZATION) | |
| 3159 /* By default, ALmixer frees the Sound_Sample for predecoded | |
| 3160 * samples because of the potential memory waste. | |
| 3161 * However, to seek a sample, we need to have a full | |
| 3162 * copy of the data around. So the strategy is to | |
| 3163 * recreate a hackish Sound_Sample to be used for seeking | |
| 3164 * purposes. If Sound_Sample is NULL, we will reallocate | |
| 3165 * memory for it and then procede as if everything | |
| 3166 * was normal. | |
| 3167 */ | |
| 3168 if(NULL == data->sample) | |
| 3169 { | |
| 3170 if( -1 == Reconstruct_Sound_Sample(data) ) | |
| 3171 { | |
|
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3172 return AL_FALSE; |
| 0 | 3173 } |
| 3174 } | |
| 3175 #endif | |
| 3176 #endif | |
| 3177 /* If access_data was set, then we still have the | |
| 3178 * Sound_Sample and we can move around in the data. | |
| 3179 * If it was not set, the data has been freed and we | |
| 3180 * cannot do anything because there is no way to | |
| 3181 * recover the data because OpenAL won't let us | |
| 3182 * get access to the buffers | |
| 3183 */ | |
| 3184 if(NULL == data->sample) | |
| 3185 { | |
| 3186 ALmixer_SetError("Cannot seek because access_data flag was set false when data was initialized"); | |
|
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3187 return AL_FALSE; |
| 0 | 3188 } |
| 3189 | |
| 3190 byte_position = Convert_Msec_To_Byte_Pos(&data->sample->desired, msec); | |
|
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|
3191 retval = Set_Predecoded_Seek_Position(data, byte_position); |
|
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3192 if(-1 == retval) |
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3193 { |
|
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3194 return AL_FALSE; |
|
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3195 } |
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3196 else |
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3197 { |
|
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3198 return AL_TRUE; |
|
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|
3199 } |
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3200 |
| 0 | 3201 } |
| 3202 else | |
| 3203 { | |
| 3204 /* Reset eof flag?? */ | |
| 3205 data->eof = 0; | |
| 3206 retval = Sound_Seek(data->sample, msec); | |
| 3207 if(0 == retval) | |
| 3208 { | |
| 3209 ALmixer_SetError(Sound_GetError()); | |
| 3210 | |
| 3211 fprintf(stderr, "Sound seek error: %s\n", ALmixer_GetError()); | |
| 3212 /* Try rewinding to clean up? */ | |
| 3213 /* | |
| 3214 Internal_RewindData(data); | |
| 3215 */ | |
|
12
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3216 return AL_FALSE; |
|
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3217 } |
|
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3218 return AL_TRUE; |
|
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3219 } |
|
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3220 |
|
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3221 return AL_TRUE; |
| 0 | 3222 } |
| 3223 | |
| 3224 | |
|
20
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3225 static ALint Internal_SeekChannel(ALint channel, ALuint msec) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3226 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3227 ALint retval = 0; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3228 ALenum error; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3229 ALint state; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3230 ALint running_count = 0; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3231 |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3232 if(0 == msec) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3233 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3234 return Internal_RewindChannel(channel); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3235 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3236 |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3237 if(channel >= Number_of_Channels_global) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3238 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3239 ALmixer_SetError("Cannot seek channel %d because it exceeds maximum number of channels (%d)\n", channel, Number_of_Channels_global); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3240 return -1; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3241 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3242 |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3243 if((error = alGetError()) != AL_NO_ERROR) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3244 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3245 fprintf(stderr, "24Testing error: %s\n", |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3246 alGetString(error)); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3247 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3248 /* Clear error */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3249 alGetError(); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3250 |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3251 /* If the user specified a specific channel */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3252 if(channel >= 0) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3253 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3254 /* only need to process channel if in use */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3255 if(ALmixer_Channel_List[channel].channel_in_use) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3256 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3257 |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3258 /* What should I do? Do I just rewind the channel |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3259 * or also rewind the data? Since the data is |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3260 * shared, let's make it the user's responsibility |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3261 * to rewind the data. |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3262 */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3263 if(ALmixer_Channel_List[channel].almixer_data->decoded_all) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3264 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3265 /* convert milliseconds to seconds */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3266 ALfloat sec_offset = msec / 1000.0f; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3267 |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3268 alGetSourcei( |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3269 ALmixer_Channel_List[channel].alsource, |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3270 AL_SOURCE_STATE, &state |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3271 ); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3272 if((error = alGetError()) != AL_NO_ERROR) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3273 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3274 fprintf(stderr, "25Testing error: %s\n", |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3275 alGetString(error)); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3276 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3277 /* OpenAL seek */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3278 alSourcef(ALmixer_Channel_List[channel].alsource, AL_SEC_OFFSET, sec_offset); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3279 if((error = alGetError()) != AL_NO_ERROR) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3280 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3281 ALmixer_SetError("%s", |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3282 alGetString(error) ); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3283 retval = -1; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3284 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3285 /* Need to resume playback if it was originally playing */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3286 if(AL_PLAYING == state) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3287 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3288 alSourcePlay(ALmixer_Channel_List[channel].alsource); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3289 if((error = alGetError()) != AL_NO_ERROR) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3290 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3291 ALmixer_SetError("%s", |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3292 alGetString(error) ); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3293 retval = -1; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3294 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3295 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3296 else if(AL_PAUSED == state) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3297 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3298 /* HACK: The problem is that when paused, after |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3299 * the Rewind, I can't get it off the INITIAL |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3300 * state without restarting |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3301 */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3302 alSourcePlay(ALmixer_Channel_List[channel].alsource); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3303 if((error = alGetError()) != AL_NO_ERROR) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3304 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3305 fprintf(stderr, "25Testing error: %s\n", |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3306 alGetString(error)); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3307 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3308 alSourcePause(ALmixer_Channel_List[channel].alsource); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3309 if((error = alGetError()) != AL_NO_ERROR) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3310 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3311 ALmixer_SetError("%s", |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3312 alGetString(error) ); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3313 retval = -1; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3314 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3315 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3316 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3317 else |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3318 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3319 /* Streamed data is different. Rewinding the channel |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3320 * does no good. Rewinding the data will have an |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3321 * effect, but it will be lagged based on how |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3322 * much data is queued. Recommend users call Halt |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3323 * before rewind if they want immediate results. |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3324 */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3325 retval = Internal_SeekData(ALmixer_Channel_List[channel].almixer_data, msec); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3326 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3327 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3328 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3329 /* The user wants to rewind all channels */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3330 else |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3331 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3332 ALint i; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3333 ALfloat sec_offset = msec / 1000.0f; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3334 |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3335 for(i=0; i<Number_of_Channels_global; i++) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3336 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3337 /* only need to process channel if in use */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3338 if(ALmixer_Channel_List[i].channel_in_use) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3339 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3340 /* What should I do? Do I just rewind the channel |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3341 * or also rewind the data? Since the data is |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3342 * shared, let's make it the user's responsibility |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3343 * to rewind the data. |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3344 */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3345 if(ALmixer_Channel_List[i].almixer_data->decoded_all) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3346 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3347 alGetSourcei( |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3348 ALmixer_Channel_List[i].alsource, |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3349 AL_SOURCE_STATE, &state |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3350 ); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3351 if((error = alGetError()) != AL_NO_ERROR) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3352 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3353 fprintf(stderr, "26Testing error: %s\n", |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3354 alGetString(error)); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3355 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3356 |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3357 alSourcef(ALmixer_Channel_List[channel].alsource, AL_SEC_OFFSET, sec_offset); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3358 if((error = alGetError()) != AL_NO_ERROR) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3359 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3360 ALmixer_SetError("%s", |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3361 alGetString(error) ); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3362 retval = -1; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3363 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3364 /* Need to resume playback if it was originally playing */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3365 if(AL_PLAYING == state) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3366 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3367 alSourcePlay(ALmixer_Channel_List[i].alsource); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3368 if((error = alGetError()) != AL_NO_ERROR) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3369 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3370 ALmixer_SetError("%s", |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3371 alGetString(error) ); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3372 retval = -1; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3373 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3374 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3375 else if(AL_PAUSED == state) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3376 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3377 /* HACK: The problem is that when paused, after |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3378 * the Rewind, I can't get it off the INITIAL |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3379 * state without restarting |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3380 */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3381 alSourcePlay(ALmixer_Channel_List[i].alsource); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3382 if((error = alGetError()) != AL_NO_ERROR) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3383 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3384 fprintf(stderr, "27Testing error: %s\n", |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3385 alGetString(error)); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3386 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3387 alSourcePause(ALmixer_Channel_List[i].alsource); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3388 if((error = alGetError()) != AL_NO_ERROR) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3389 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3390 ALmixer_SetError("%s", |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3391 alGetString(error) ); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3392 retval = -1; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3393 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3394 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3395 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3396 else |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3397 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3398 /* Streamed data is different. Rewinding the channel |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3399 * does no good. Rewinding the data will have an |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3400 * effect, but it will be lagged based on how |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3401 * much data is queued. Recommend users call Halt |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3402 * before rewind if they want immediate results. |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3403 */ |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3404 running_count += Internal_SeekData(ALmixer_Channel_List[i].almixer_data, msec); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3405 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3406 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3407 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3408 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3409 if(-1 == retval) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3410 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3411 return -1; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3412 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3413 else |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3414 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3415 return running_count; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3416 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3417 |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3418 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3419 |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3420 static ALint Internal_SeekSource(ALuint source, ALuint msec) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3421 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3422 ALint channel; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3423 if(0 == source) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3424 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3425 return Internal_SeekChannel(-1, msec); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3426 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3427 |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3428 channel = Internal_GetChannel(source); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3429 if(-1 == channel) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3430 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3431 ALmixer_SetError("Cannot seek source: %s", ALmixer_GetError()); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3432 return 0; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3433 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3434 return Internal_SeekChannel(channel, msec); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3435 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3436 |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3437 |
| 0 | 3438 |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3439 static ALint Internal_FadeInChannelTimed(ALint channel, ALmixer_Data* data, ALint loops, ALuint fade_ticks, ALint expire_ticks) |
| 0 | 3440 { |
| 3441 ALfloat value; | |
| 3442 ALenum error; | |
| 3443 ALfloat original_value; | |
|
24
e085cbc573cf
iOS optimization/bug/workaround.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
22
diff
changeset
|
3444 /* ALuint current_time = ALmixer_GetTicks(); */ |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3445 ALint retval; |
| 0 | 3446 |
| 3447 | |
| 3448 | |
| 3449 if(channel >= Number_of_Channels_global) | |
| 3450 { | |
| 3451 ALmixer_SetError("Requested channel (%d) exceeds maximum channel (%d) because only %d channels are allocated", channel, Number_of_Channels_global-1, Number_of_Channels_global); | |
| 3452 return -1; | |
| 3453 } | |
| 3454 /* Let's call PlayChannelTimed to do the job. | |
| 3455 * There are two catches: | |
| 3456 * First is that we must set the volumes before the play call(s). | |
| 3457 * Second is that we must initialize the channel values | |
| 3458 */ | |
| 3459 | |
| 3460 if(channel < 0) | |
| 3461 { | |
| 3462 /* This might cause a problem for threads/race conditions. | |
| 3463 * We need to set the volume on an unknown channel, | |
| 3464 * so we need to request a channel first. Remember | |
| 3465 * that requesting a channel doesn't lock and it | |
| 3466 * could be surrendered to somebody else before we claim it. | |
| 3467 */ | |
| 3468 channel = Internal_GetChannel(0); | |
| 3469 if(-1 == channel) | |
| 3470 { | |
| 3471 return -1; | |
| 3472 } | |
| 3473 } | |
| 3474 else if(ALmixer_Channel_List[channel].channel_in_use) | |
| 3475 { | |
| 3476 ALmixer_SetError("Channel %d is already in use", channel); | |
| 3477 return -1; | |
| 3478 } | |
| 3479 | |
| 3480 | |
| 3481 /* Get the original volume in case of a problem */ | |
| 3482 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3483 AL_GAIN, &original_value); |
| 0 | 3484 |
| 3485 if((error = alGetError()) != AL_NO_ERROR) | |
| 3486 { | |
| 3487 fprintf(stderr, "35Testing error: %s\n", | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3488 alGetString(error)); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3489 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3490 ALmixer_Channel_List[channel].fade_end_volume = original_value; |
| 0 | 3491 |
| 3492 /* Get the Min volume */ | |
| 3493 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
| 3494 AL_MIN_GAIN, &value); | |
| 3495 if((error = alGetError()) != AL_NO_ERROR) | |
| 3496 { | |
| 3497 fprintf(stderr, "36Testing error: %s\n", | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3498 alGetString(error)); |
| 0 | 3499 } |
| 3500 ALmixer_Channel_List[channel].fade_start_volume = value; | |
| 3501 | |
| 3502 /* Set the actual volume */ | |
| 3503 alSourcef(ALmixer_Channel_List[channel].alsource, | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3504 AL_GAIN, value); |
| 0 | 3505 if((error = alGetError()) != AL_NO_ERROR) |
| 3506 { | |
| 3507 fprintf(stderr, "37Testing error: %s\n", | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3508 alGetString(error)); |
| 0 | 3509 } |
| 3510 | |
| 3511 | |
| 3512 /* Now call PlayChannelTimed */ | |
| 3513 retval = Internal_PlayChannelTimed(channel, data, loops, expire_ticks); | |
| 3514 if(-1 == retval) | |
| 3515 { | |
| 3516 /* Chance of failure is actually pretty high since | |
| 3517 * a channel might already be in use or streamed | |
| 3518 * data can be shared | |
| 3519 */ | |
| 3520 /* Restore the original value to avoid accidental | |
| 3521 * distruption of playback | |
| 3522 */ | |
| 3523 alSourcef(ALmixer_Channel_List[channel].alsource, | |
|
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3524 AL_GAIN, original_value); |
|
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|
3525 if((error = alGetError()) != AL_NO_ERROR) |
|
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3526 { |
|
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|
3527 fprintf(stderr, "38Testing error: %s\n", |
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|
3528 alGetString(error)); |
|
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|
3529 } |
| 0 | 3530 return retval; |
| 3531 } | |
| 3532 | |
| 3533 /* We can't accept 0 as a value because of div-by-zero. | |
| 3534 * If zero, just call PlayChannelTimed at normal | |
| 3535 * volume | |
| 3536 */ | |
| 3537 if(0 == fade_ticks) | |
| 3538 { | |
| 3539 alSourcef(ALmixer_Channel_List[channel].alsource, | |
|
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|
3540 AL_GAIN, |
| 0 | 3541 ALmixer_Channel_List[channel].fade_end_volume |
| 3542 ); | |
|
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|
3543 if((error = alGetError()) != AL_NO_ERROR) |
|
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3544 { |
|
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|
3545 fprintf(stderr, "39Testing error: %s\n", |
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|
3546 alGetString(error)); |
|
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|
3547 } |
| 0 | 3548 |
| 3549 return retval; | |
| 3550 } | |
| 3551 | |
| 3552 /* Enable fading effects via the flag */ | |
| 3553 ALmixer_Channel_List[channel].fade_enabled = 1; | |
| 3554 /* Set fade start time */ | |
| 3555 ALmixer_Channel_List[channel].fade_start_time | |
| 3556 = ALmixer_Channel_List[channel].start_time; | |
| 3557 /* Set the fade expire ticks */ | |
| 3558 ALmixer_Channel_List[channel].fade_expire_ticks = fade_ticks; | |
| 3559 | |
| 3560 /* Set 1/(endtime-starttime) or 1/deltaT */ | |
| 3561 ALmixer_Channel_List[channel].fade_inv_time = 1.0f / fade_ticks; | |
| 3562 | |
| 3563 return retval; | |
| 3564 | |
| 3565 } | |
| 3566 | |
| 3567 | |
|
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|
3568 static ALuint Internal_FadeInSourceTimed(ALuint source, ALmixer_Data* data, ALint loops, ALuint fade_ticks, ALint expire_ticks) |
|
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3569 { |
|
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|
3570 ALint channel; |
|
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|
3571 ALint retval; |
| 0 | 3572 if(0 == source) |
| 3573 { | |
| 3574 retval = Internal_FadeInChannelTimed(-1, data, loops, fade_ticks, expire_ticks); | |
| 3575 if(-1 == retval) | |
| 3576 { | |
| 3577 return 0; | |
| 3578 } | |
| 3579 else | |
| 3580 { | |
| 3581 return Internal_GetSource(retval); | |
| 3582 } | |
| 3583 } | |
| 3584 | |
| 3585 channel = Internal_GetChannel(source); | |
| 3586 if(-1 == channel) | |
| 3587 { | |
| 3588 ALmixer_SetError("Cannot FadeIn source: %s", ALmixer_GetError()); | |
| 3589 return 0; | |
| 3590 } | |
| 3591 retval = Internal_FadeInChannelTimed(channel, data, loops, fade_ticks, expire_ticks); | |
| 3592 if(-1 == retval) | |
| 3593 { | |
| 3594 return 0; | |
| 3595 } | |
| 3596 else | |
| 3597 { | |
| 3598 return source; | |
| 3599 } | |
| 3600 /* make compiler happy */ | |
| 3601 return 0; | |
| 3602 } | |
| 3603 | |
| 3604 | |
| 3605 | |
| 3606 | |
| 3607 /* Will fade out currently playing channels. | |
| 3608 * It starts at the current volume level and goes down */ | |
|
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|
3609 static ALint Internal_FadeOutChannel(ALint channel, ALuint ticks) |
| 0 | 3610 { |
| 3611 ALfloat value; | |
| 3612 ALenum error; | |
|
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3613 ALuint current_time = ALmixer_GetTicks(); |
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3614 ALuint counter = 0; |
| 0 | 3615 |
| 3616 /* We can't accept 0 as a value because of div-by-zero. | |
| 3617 * If zero, just call Halt at normal | |
| 3618 * volume | |
| 3619 */ | |
| 3620 if(0 == ticks) | |
| 3621 { | |
|
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|
3622 return Internal_HaltChannel(channel, AL_FALSE); |
| 0 | 3623 } |
| 3624 | |
| 3625 | |
| 3626 if(channel >= Number_of_Channels_global) | |
| 3627 { | |
| 3628 ALmixer_SetError("Requested channel (%d) exceeds maximum channel (%d) because only %d channels are allocated", channel, Number_of_Channels_global-1, Number_of_Channels_global); | |
| 3629 return -1; | |
| 3630 } | |
| 3631 | |
| 3632 if(channel >= 0) | |
| 3633 { | |
| 3634 if(ALmixer_Channel_List[channel].channel_in_use) | |
| 3635 { | |
| 3636 /* Get the current volume */ | |
| 3637 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
|
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|
3638 AL_GAIN, &value); |
| 0 | 3639 ALmixer_Channel_List[channel].fade_start_volume = value; |
| 3640 if((error = alGetError()) != AL_NO_ERROR) | |
| 3641 { | |
| 3642 fprintf(stderr, "40Testing error: %s\n", | |
|
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|
3643 alGetString(error)); |
| 0 | 3644 } |
| 3645 | |
| 3646 /* Get the Min volume */ | |
| 3647 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
| 3648 AL_MIN_GAIN, &value); | |
| 3649 if((error = alGetError()) != AL_NO_ERROR) | |
| 3650 { | |
| 3651 fprintf(stderr, "41Testing error: %s\n", | |
|
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|
3652 alGetString(error)); |
| 0 | 3653 } |
| 3654 ALmixer_Channel_List[channel].fade_end_volume = value; | |
| 3655 | |
| 3656 /* Set expire start time */ | |
| 3657 ALmixer_Channel_List[channel].start_time = current_time; | |
| 3658 /* Set the expire ticks */ | |
| 3659 ALmixer_Channel_List[channel].expire_ticks = ticks; | |
| 3660 /* Set fade start time */ | |
| 3661 ALmixer_Channel_List[channel].fade_start_time = current_time; | |
| 3662 /* Set the fade expire ticks */ | |
| 3663 ALmixer_Channel_List[channel].fade_expire_ticks = ticks; | |
| 3664 /* Enable fading effects via the flag */ | |
| 3665 ALmixer_Channel_List[channel].fade_enabled = 1; | |
| 3666 | |
| 3667 /* Set 1/(endtime-starttime) or 1/deltaT */ | |
| 3668 ALmixer_Channel_List[channel].fade_inv_time = 1.0f / ticks; | |
| 3669 | |
| 3670 counter++; | |
| 3671 } | |
| 3672 } | |
| 3673 /* Else need to fade out all channels */ | |
| 3674 else | |
| 3675 { | |
|
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|
3676 ALint i; |
| 0 | 3677 for(i=0; i<Number_of_Channels_global; i++) |
| 3678 { | |
| 3679 if(ALmixer_Channel_List[i].channel_in_use) | |
| 3680 { | |
| 3681 /* Get the current volume */ | |
| 3682 alGetSourcef(ALmixer_Channel_List[i].alsource, | |
|
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|
3683 AL_GAIN, &value); |
| 0 | 3684 ALmixer_Channel_List[i].fade_start_volume = value; |
| 3685 if((error = alGetError()) != AL_NO_ERROR) | |
| 3686 { | |
| 3687 fprintf(stderr, "42Testing error: %s\n", | |
|
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|
3688 alGetString(error)); |
| 0 | 3689 } |
| 3690 | |
| 3691 /* Get the Min volume */ | |
| 3692 alGetSourcef(ALmixer_Channel_List[i].alsource, | |
| 3693 AL_MIN_GAIN, &value); | |
| 3694 if((error = alGetError()) != AL_NO_ERROR) | |
| 3695 { | |
| 3696 fprintf(stderr, "43Testing error: %s\n", | |
|
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|
3697 alGetString(error)); |
| 0 | 3698 } |
| 3699 ALmixer_Channel_List[i].fade_end_volume = value; | |
| 3700 | |
| 3701 /* Set expire start time */ | |
| 3702 ALmixer_Channel_List[i].start_time = current_time; | |
| 3703 /* Set the expire ticks */ | |
| 3704 ALmixer_Channel_List[i].expire_ticks = ticks; | |
| 3705 /* Set fade start time */ | |
| 3706 ALmixer_Channel_List[i].fade_start_time = current_time; | |
| 3707 /* Set the fade expire ticks */ | |
| 3708 ALmixer_Channel_List[i].fade_expire_ticks = ticks; | |
| 3709 /* Enable fading effects via the flag */ | |
| 3710 ALmixer_Channel_List[i].fade_enabled = 1; | |
| 3711 | |
| 3712 /* Set 1/(endtime-starttime) or 1/deltaT */ | |
| 3713 ALmixer_Channel_List[i].fade_inv_time = 1.0f / ticks; | |
| 3714 | |
| 3715 counter++; | |
| 3716 } | |
| 3717 } /* End for loop */ | |
| 3718 } | |
| 3719 return counter; | |
| 3720 } | |
| 3721 | |
| 3722 | |
|
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|
3723 static ALint Internal_FadeOutSource(ALuint source, ALuint ticks) |
|
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|
3724 { |
|
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|
3725 ALint channel; |
| 0 | 3726 if(0 == source) |
| 3727 { | |
| 3728 return Internal_FadeOutChannel(-1, ticks); | |
| 3729 } | |
| 3730 | |
| 3731 channel = Internal_GetChannel(source); | |
| 3732 if(-1 == channel) | |
| 3733 { | |
| 3734 ALmixer_SetError("Cannot FadeOut source: %s", ALmixer_GetError()); | |
| 3735 return -1; | |
| 3736 } | |
| 3737 return Internal_FadeOutChannel(channel, ticks); | |
| 3738 } | |
| 3739 | |
| 3740 | |
| 3741 /* Will fade currently playing channels. | |
| 3742 * It starts at the current volume level and go to target | |
| 3743 * Only affects channels that are playing | |
| 3744 */ | |
|
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|
3745 static ALint Internal_FadeChannel(ALint channel, ALuint ticks, ALfloat volume) |
| 0 | 3746 { |
| 3747 ALfloat value; | |
| 3748 ALenum error; | |
|
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|
3749 ALuint current_time = ALmixer_GetTicks(); |
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|
3750 ALuint counter = 0; |
| 0 | 3751 |
| 3752 if(channel >= Number_of_Channels_global) | |
| 3753 { | |
| 3754 ALmixer_SetError("Requested channel (%d) exceeds maximum channel (%d) because only %d channels are allocated", channel, Number_of_Channels_global-1, Number_of_Channels_global); | |
| 3755 return -1; | |
| 3756 } | |
| 3757 | |
| 3758 if(channel >= 0) | |
| 3759 { | |
| 3760 if(volume < ALmixer_Channel_List[channel].min_volume) | |
| 3761 { | |
| 3762 volume = ALmixer_Channel_List[channel].min_volume; | |
| 3763 } | |
| 3764 else if(volume > ALmixer_Channel_List[channel].max_volume) | |
| 3765 { | |
| 3766 volume = ALmixer_Channel_List[channel].max_volume; | |
| 3767 } | |
| 3768 | |
| 3769 if(ALmixer_Channel_List[channel].channel_in_use) | |
| 3770 { | |
| 3771 if(ticks > 0) | |
| 3772 { | |
| 3773 /* Get the current volume */ | |
| 3774 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
|
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|
3775 AL_GAIN, &value); |
| 0 | 3776 if((error = alGetError()) != AL_NO_ERROR) |
| 3777 { | |
| 3778 fprintf(stderr, "44Testing error: %s\n", | |
|
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|
3779 alGetString(error)); |
| 0 | 3780 } |
| 3781 ALmixer_Channel_List[channel].fade_start_volume = value; | |
| 3782 | |
| 3783 /* Set the target volume */ | |
| 3784 ALmixer_Channel_List[channel].fade_end_volume = volume; | |
| 3785 | |
| 3786 /* Set fade start time */ | |
| 3787 ALmixer_Channel_List[channel].fade_start_time = current_time; | |
| 3788 /* Set the fade expire ticks */ | |
| 3789 ALmixer_Channel_List[channel].fade_expire_ticks = ticks; | |
| 3790 /* Enable fading effects via the flag */ | |
| 3791 ALmixer_Channel_List[channel].fade_enabled = 1; | |
| 3792 | |
| 3793 /* Set 1/(endtime-starttime) or 1/deltaT */ | |
| 3794 ALmixer_Channel_List[channel].fade_inv_time = 1.0f / ticks; | |
| 3795 } | |
| 3796 else | |
| 3797 { | |
| 3798 alSourcef(ALmixer_Channel_List[channel].alsource, | |
|
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|
3799 AL_GAIN, volume); |
| 0 | 3800 if((error = alGetError()) != AL_NO_ERROR) |
| 3801 { | |
| 3802 fprintf(stderr, "45Testing error: %s\n", | |
|
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|
3803 alGetString(error)); |
| 0 | 3804 } |
| 3805 } | |
| 3806 counter++; | |
| 3807 } | |
| 3808 } | |
| 3809 /* Else need to fade out all channels */ | |
| 3810 else | |
| 3811 { | |
|
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|
3812 ALint i; |
| 0 | 3813 for(i=0; i<Number_of_Channels_global; i++) |
| 3814 { | |
| 3815 if(volume < ALmixer_Channel_List[i].min_volume) | |
| 3816 { | |
| 3817 volume = ALmixer_Channel_List[i].min_volume; | |
| 3818 } | |
| 3819 else if(volume > ALmixer_Channel_List[i].max_volume) | |
| 3820 { | |
| 3821 volume = ALmixer_Channel_List[i].max_volume; | |
| 3822 } | |
| 3823 | |
| 3824 if(ALmixer_Channel_List[i].channel_in_use) | |
| 3825 { | |
| 3826 if(ticks > 0) | |
| 3827 { | |
| 3828 /* Get the current volume */ | |
| 3829 alGetSourcef(ALmixer_Channel_List[i].alsource, | |
|
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|
3830 AL_GAIN, &value); |
| 0 | 3831 if((error = alGetError()) != AL_NO_ERROR) |
| 3832 { | |
| 3833 fprintf(stderr, "46Testing error: %s\n", | |
|
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|
3834 alGetString(error)); |
| 0 | 3835 } |
| 3836 ALmixer_Channel_List[i].fade_start_volume = value; | |
| 3837 | |
| 3838 /* Set target volume */ | |
| 3839 ALmixer_Channel_List[i].fade_end_volume = volume; | |
| 3840 | |
| 3841 /* Set fade start time */ | |
| 3842 ALmixer_Channel_List[i].fade_start_time = current_time; | |
| 3843 /* Set the fade expire ticks */ | |
| 3844 ALmixer_Channel_List[i].fade_expire_ticks = ticks; | |
| 3845 /* Enable fading effects via the flag */ | |
| 3846 ALmixer_Channel_List[i].fade_enabled = 1; | |
| 3847 | |
| 3848 /* Set 1/(endtime-starttime) or 1/deltaT */ | |
| 3849 ALmixer_Channel_List[i].fade_inv_time = 1.0f / ticks; | |
| 3850 } | |
| 3851 else | |
| 3852 { | |
| 3853 alSourcef(ALmixer_Channel_List[i].alsource, | |
|
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|
3854 AL_GAIN, volume); |
| 0 | 3855 if((error = alGetError()) != AL_NO_ERROR) |
| 3856 { | |
| 3857 fprintf(stderr, "47Testing error: %s\n", | |
|
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|
3858 alGetString(error)); |
| 0 | 3859 } |
| 3860 } | |
| 3861 counter++; | |
| 3862 } | |
| 3863 } /* End for loop */ | |
| 3864 } | |
| 3865 return counter; | |
| 3866 } | |
| 3867 | |
|
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|
3868 static ALint Internal_FadeSource(ALuint source, ALuint ticks, ALfloat volume) |
|
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|
3869 { |
|
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|
3870 ALint channel; |
| 0 | 3871 if(0 == source) |
| 3872 { | |
| 3873 return Internal_FadeChannel(-1, ticks, volume); | |
| 3874 } | |
| 3875 | |
| 3876 channel = Internal_GetChannel(source); | |
| 3877 if(-1 == channel) | |
| 3878 { | |
| 3879 ALmixer_SetError("Cannot Fade source: %s", ALmixer_GetError()); | |
| 3880 return -1; | |
| 3881 } | |
| 3882 return Internal_FadeChannel(channel, ticks, volume); | |
| 3883 } | |
| 3884 | |
| 3885 | |
| 3886 | |
| 3887 | |
| 3888 /* Set a volume regardless if it's in use or not. | |
| 3889 */ | |
|
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diff
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|
3890 static ALboolean Internal_SetVolumeChannel(ALint channel, ALfloat volume) |
| 0 | 3891 { |
| 3892 ALenum error; | |
|
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279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3893 ALboolean retval = AL_TRUE; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3894 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3895 if(channel >= Number_of_Channels_global) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3896 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3897 ALmixer_SetError("Requested channel (%d) exceeds maximum channel (%d) because only %d channels are allocated", channel, Number_of_Channels_global-1, Number_of_Channels_global); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3898 return AL_FALSE; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3899 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3900 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3901 if(channel >= 0) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3902 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3903 if(volume < 0.0f) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3904 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3905 volume = 0.0f; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3906 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3907 else if(volume > 1.0f) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3908 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3909 volume = 1.0f; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3910 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3911 alSourcef(ALmixer_Channel_List[channel].alsource, |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3912 AL_GAIN, volume); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3913 if((error = alGetError()) != AL_NO_ERROR) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3914 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3915 ALmixer_SetError("%s", |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3916 alGetString(error) ); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3917 retval = AL_FALSE; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3918 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3919 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3920 else |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3921 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3922 ALint i; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3923 for(i=0; i<Number_of_Channels_global; i++) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3924 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3925 if(volume < 0.0f) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3926 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3927 volume = 0.0f; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3928 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3929 else if(volume > 1.0f) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3930 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3931 volume = 1.0f; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3932 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3933 alSourcef(ALmixer_Channel_List[i].alsource, |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3934 AL_GAIN, volume); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3935 if((error = alGetError()) != AL_NO_ERROR) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3936 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3937 ALmixer_SetError("%s", |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3938 alGetString(error) ); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3939 retval = AL_FALSE; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3940 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3941 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3942 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3943 return retval; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3944 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3945 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3946 static ALboolean Internal_SetVolumeSource(ALuint source, ALfloat volume) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3947 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3948 ALint channel; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3949 if(0 == source) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3950 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3951 return Internal_SetVolumeChannel(-1, volume); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3952 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3953 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3954 channel = Internal_GetChannel(source); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3955 if(-1 == channel) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3956 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3957 ALmixer_SetError("Cannot SetMaxVolume: %s", ALmixer_GetError()); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3958 return AL_FALSE; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3959 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3960 return Internal_SetVolumeChannel(channel, volume); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3961 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3962 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3963 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3964 static ALfloat Internal_GetVolumeChannel(ALint channel) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3965 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3966 ALfloat value; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3967 ALenum error; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3968 ALfloat running_total = 0.0f; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3969 ALfloat retval = 0.0f; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3970 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3971 if(channel >= Number_of_Channels_global) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3972 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3973 ALmixer_SetError("Requested channel (%d) exceeds maximum channel (%d) because only %d channels are allocated", channel, Number_of_Channels_global-1, Number_of_Channels_global); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3974 return -1.0f; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3975 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3976 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3977 if(channel >= 0) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3978 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3979 alGetSourcef(ALmixer_Channel_List[channel].alsource, |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3980 AL_GAIN, &value); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3981 if((error = alGetError()) != AL_NO_ERROR) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3982 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3983 ALmixer_SetError("%s", alGetString(error) ); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3984 retval = -1.0f; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3985 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3986 else |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3987 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3988 retval = value; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3989 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3990 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3991 else |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3992 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3993 ALint i; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3994 for(i=0; i<Number_of_Channels_global; i++) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3995 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3996 alGetSourcef(ALmixer_Channel_List[i].alsource, |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3997 AL_GAIN, &value); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3998 if((error = alGetError()) != AL_NO_ERROR) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3999 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4000 ALmixer_SetError("%s", alGetString(error) ); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4001 retval = -1; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4002 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4003 else |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4004 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4005 running_total += value; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4006 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4007 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4008 if(0 == Number_of_Channels_global) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4009 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4010 ALmixer_SetError("No channels are allocated"); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4011 retval = -1.0f; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4012 } |
|
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4013 else |
|
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4014 { |
|
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4015 retval = running_total / Number_of_Channels_global; |
|
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4016 } |
|
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4017 } |
|
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4018 return retval; |
|
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4019 } |
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|
4020 |
|
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|
4021 static ALfloat Internal_GetVolumeSource(ALuint source) |
|
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|
4022 { |
|
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|
4023 ALint channel; |
|
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|
4024 if(0 == source) |
|
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4025 { |
|
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|
4026 return Internal_GetVolumeChannel(-1); |
|
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|
4027 } |
|
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|
4028 |
|
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|
4029 channel = Internal_GetChannel(source); |
|
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|
4030 if(-1 == channel) |
|
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|
4031 { |
|
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|
4032 ALmixer_SetError("Cannot GetVolume: %s", ALmixer_GetError()); |
|
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4033 return -1.0f; |
|
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|
4034 } |
|
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|
4035 |
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|
4036 return Internal_GetVolumeChannel(channel); |
|
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|
4037 } |
|
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|
4038 |
|
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|
4039 |
|
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|
4040 |
|
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|
4041 /* Set a volume regardless if it's in use or not. |
|
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|
4042 */ |
|
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|
4043 static ALboolean Internal_SetMaxVolumeChannel(ALint channel, ALfloat volume) |
|
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|
4044 { |
|
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|
4045 ALenum error; |
|
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|
4046 ALboolean retval = AL_TRUE; |
| 0 | 4047 |
| 4048 if(channel >= Number_of_Channels_global) | |
| 4049 { | |
| 4050 ALmixer_SetError("Requested channel (%d) exceeds maximum channel (%d) because only %d channels are allocated", channel, Number_of_Channels_global-1, Number_of_Channels_global); | |
|
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4051 return AL_FALSE; |
| 0 | 4052 } |
| 4053 | |
| 4054 if(channel >= 0) | |
| 4055 { | |
| 4056 if(volume < 0.0f) | |
| 4057 { | |
| 4058 volume = 0.0f; | |
| 4059 } | |
| 4060 else if(volume > 1.0f) | |
| 4061 { | |
| 4062 volume = 1.0f; | |
| 4063 } | |
| 4064 ALmixer_Channel_List[channel].max_volume = volume; | |
| 4065 alSourcef(ALmixer_Channel_List[channel].alsource, | |
| 4066 AL_MAX_GAIN, volume); | |
| 4067 if((error = alGetError()) != AL_NO_ERROR) | |
| 4068 { | |
| 4069 ALmixer_SetError("%s", | |
|
2
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|
4070 alGetString(error) ); |
|
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|
4071 retval = AL_FALSE; |
| 0 | 4072 } |
| 4073 if(ALmixer_Channel_List[channel].max_volume < ALmixer_Channel_List[channel].min_volume) | |
| 4074 { | |
| 4075 ALmixer_Channel_List[channel].min_volume = volume; | |
| 4076 alSourcef(ALmixer_Channel_List[channel].alsource, | |
| 4077 AL_MIN_GAIN, volume); | |
| 4078 if((error = alGetError()) != AL_NO_ERROR) | |
| 4079 { | |
| 4080 ALmixer_SetError("%s", | |
|
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|
4081 alGetString(error) ); |
|
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|
4082 retval = AL_FALSE; |
| 0 | 4083 } |
| 4084 } | |
| 4085 } | |
| 4086 else | |
| 4087 { | |
|
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|
4088 ALint i; |
| 0 | 4089 for(i=0; i<Number_of_Channels_global; i++) |
| 4090 { | |
| 4091 if(volume < 0.0f) | |
| 4092 { | |
| 4093 volume = 0.0f; | |
| 4094 } | |
| 4095 else if(volume > 1.0f) | |
| 4096 { | |
| 4097 volume = 1.0f; | |
| 4098 } | |
| 4099 ALmixer_Channel_List[i].max_volume = volume; | |
| 4100 alSourcef(ALmixer_Channel_List[i].alsource, | |
| 4101 AL_MAX_GAIN, volume); | |
| 4102 if((error = alGetError()) != AL_NO_ERROR) | |
| 4103 { | |
| 4104 ALmixer_SetError("%s", | |
|
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|
4105 alGetString(error) ); |
|
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|
4106 retval = AL_FALSE; |
| 0 | 4107 } |
| 4108 if(ALmixer_Channel_List[i].max_volume < ALmixer_Channel_List[i].min_volume) | |
| 4109 { | |
| 4110 ALmixer_Channel_List[i].min_volume = volume; | |
| 4111 alSourcef(ALmixer_Channel_List[i].alsource, | |
| 4112 AL_MIN_GAIN, volume); | |
| 4113 if((error = alGetError()) != AL_NO_ERROR) | |
| 4114 { | |
| 4115 ALmixer_SetError("%s", | |
|
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|
4116 alGetString(error) ); |
|
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|
4117 retval = AL_FALSE; |
| 0 | 4118 } |
| 4119 } | |
| 4120 } | |
| 4121 } | |
| 4122 return retval; | |
| 4123 } | |
| 4124 | |
|
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|
4125 static ALint Internal_SetMaxVolumeSource(ALuint source, ALfloat volume) |
|
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|
4126 { |
|
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|
4127 ALint channel; |
| 0 | 4128 if(0 == source) |
| 4129 { | |
| 4130 return Internal_SetMaxVolumeChannel(-1, volume); | |
| 4131 } | |
| 4132 | |
| 4133 channel = Internal_GetChannel(source); | |
| 4134 if(-1 == channel) | |
| 4135 { | |
| 4136 ALmixer_SetError("Cannot SetMaxVolume: %s", ALmixer_GetError()); | |
|
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|
4137 return AL_FALSE; |
| 0 | 4138 } |
| 4139 return Internal_SetMaxVolumeChannel(channel, volume); | |
| 4140 } | |
| 4141 | |
|
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|
4142 static ALfloat Internal_GetMaxVolumeChannel(ALint channel) |
| 0 | 4143 { |
| 4144 /* | |
| 4145 ALfloat value; | |
| 4146 ALenum error; | |
| 4147 */ | |
| 4148 ALfloat running_total = 0.0f; | |
| 4149 ALfloat retval = 0.0f; | |
| 4150 | |
| 4151 if(channel >= Number_of_Channels_global) | |
| 4152 { | |
| 4153 ALmixer_SetError("Requested channel (%d) exceeds maximum channel (%d) because only %d channels are allocated", channel, Number_of_Channels_global-1, Number_of_Channels_global); | |
| 4154 return -1.0f; | |
| 4155 } | |
| 4156 | |
| 4157 if(channel >= 0) | |
| 4158 { | |
| 4159 /* | |
| 4160 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
| 4161 AL_GAIN, &value); | |
| 4162 if((error = alGetError()) != AL_NO_ERROR) | |
| 4163 { | |
| 4164 ALmixer_SetError("%s", | |
|
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|
4165 alGetString(error) ); |
| 0 | 4166 retval = -1.0f; |
| 4167 } | |
| 4168 else | |
| 4169 { | |
| 4170 retval = value; | |
| 4171 } | |
| 4172 */ | |
| 4173 retval = ALmixer_Channel_List[channel].max_volume; | |
| 4174 | |
| 4175 } | |
| 4176 else | |
| 4177 { | |
|
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|
4178 ALint i; |
| 0 | 4179 for(i=0; i<Number_of_Channels_global; i++) |
| 4180 { | |
| 4181 /* | |
| 4182 alGetSourcef(ALmixer_Channel_List[i].alsource, | |
| 4183 AL_GAIN, &value); | |
| 4184 if((error = alGetError()) != AL_NO_ERROR) | |
| 4185 { | |
| 4186 ALmixer_SetError("%s", | |
|
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|
4187 alGetString(error) ); |
| 0 | 4188 retval = -1; |
| 4189 } | |
| 4190 else | |
| 4191 { | |
| 4192 running_total += value; | |
| 4193 } | |
| 4194 */ | |
| 4195 running_total += ALmixer_Channel_List[i].max_volume; | |
| 4196 } | |
| 4197 if(0 == Number_of_Channels_global) | |
| 4198 { | |
| 4199 ALmixer_SetError("No channels are allocated"); | |
| 4200 retval = -1.0f; | |
| 4201 } | |
| 4202 else | |
| 4203 { | |
| 4204 retval = running_total / Number_of_Channels_global; | |
| 4205 } | |
| 4206 } | |
| 4207 return retval; | |
| 4208 } | |
| 4209 | |
| 4210 static ALfloat Internal_GetMaxVolumeSource(ALuint source) | |
| 4211 { | |
|
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|
4212 ALint channel; |
| 0 | 4213 if(0 == source) |
| 4214 { | |
| 4215 return Internal_GetMaxVolumeChannel(-1); | |
| 4216 } | |
| 4217 | |
| 4218 channel = Internal_GetChannel(source); | |
| 4219 if(-1 == channel) | |
| 4220 { | |
| 4221 ALmixer_SetError("Cannot GetVolume: %s", ALmixer_GetError()); | |
| 4222 return -1.0f; | |
| 4223 } | |
| 4224 | |
| 4225 return Internal_GetMaxVolumeChannel(channel); | |
| 4226 } | |
| 4227 | |
| 4228 | |
| 4229 /* Set a volume regardless if it's in use or not. | |
| 4230 */ | |
|
2
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|
4231 static ALboolean Internal_SetMinVolumeChannel(ALint channel, ALfloat volume) |
| 0 | 4232 { |
| 4233 ALenum error; | |
|
2
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|
4234 ALboolean retval = AL_TRUE; |
| 0 | 4235 |
| 4236 if(channel >= Number_of_Channels_global) | |
| 4237 { | |
| 4238 ALmixer_SetError("Requested channel (%d) exceeds maximum channel (%d) because only %d channels are allocated", channel, Number_of_Channels_global-1, Number_of_Channels_global); | |
|
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|
4239 return AL_FALSE; |
| 0 | 4240 } |
| 4241 | |
| 4242 if(channel >= 0) | |
| 4243 { | |
| 4244 if(volume < 0.0f) | |
| 4245 { | |
| 4246 volume = 0.0f; | |
| 4247 } | |
| 4248 else if(volume > 1.0f) | |
| 4249 { | |
| 4250 volume = 1.0f; | |
| 4251 } | |
| 4252 ALmixer_Channel_List[channel].min_volume = volume; | |
| 4253 alSourcef(ALmixer_Channel_List[channel].alsource, | |
| 4254 AL_MIN_GAIN, volume); | |
| 4255 if((error = alGetError()) != AL_NO_ERROR) | |
| 4256 { | |
| 4257 ALmixer_SetError("%s", | |
|
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|
4258 alGetString(error) ); |
|
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|
4259 retval = AL_FALSE; |
| 0 | 4260 } |
| 4261 if(ALmixer_Channel_List[channel].max_volume < ALmixer_Channel_List[channel].min_volume) | |
| 4262 { | |
| 4263 ALmixer_Channel_List[channel].max_volume = volume; | |
| 4264 alSourcef(ALmixer_Channel_List[channel].alsource, | |
| 4265 AL_MAX_GAIN, volume); | |
| 4266 if((error = alGetError()) != AL_NO_ERROR) | |
| 4267 { | |
| 4268 ALmixer_SetError("%s", | |
|
2
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|
4269 alGetString(error) ); |
|
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|
4270 retval = AL_FALSE; |
| 0 | 4271 } |
| 4272 } | |
| 4273 } | |
| 4274 else | |
| 4275 { | |
|
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|
4276 ALint i; |
| 0 | 4277 for(i=0; i<Number_of_Channels_global; i++) |
| 4278 { | |
| 4279 if(volume < 0.0f) | |
| 4280 { | |
| 4281 volume = 0.0f; | |
| 4282 } | |
| 4283 else if(volume > 1.0f) | |
| 4284 { | |
| 4285 volume = 1.0f; | |
| 4286 } | |
| 4287 ALmixer_Channel_List[i].min_volume = volume; | |
| 4288 alSourcef(ALmixer_Channel_List[i].alsource, | |
| 4289 AL_MIN_GAIN, volume); | |
| 4290 if((error = alGetError()) != AL_NO_ERROR) | |
| 4291 { | |
| 4292 ALmixer_SetError("%s", | |
|
2
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|
4293 alGetString(error) ); |
|
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|
4294 retval = AL_FALSE; |
| 0 | 4295 } |
| 4296 if(ALmixer_Channel_List[i].max_volume < ALmixer_Channel_List[i].min_volume) | |
| 4297 { | |
| 4298 ALmixer_Channel_List[i].max_volume = volume; | |
| 4299 alSourcef(ALmixer_Channel_List[i].alsource, | |
| 4300 AL_MAX_GAIN, volume); | |
| 4301 if((error = alGetError()) != AL_NO_ERROR) | |
| 4302 { | |
| 4303 ALmixer_SetError("%s", | |
|
2
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|
4304 alGetString(error) ); |
|
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|
4305 retval = AL_FALSE; |
| 0 | 4306 } |
| 4307 } | |
| 4308 } | |
| 4309 } | |
| 4310 return retval; | |
| 4311 } | |
| 4312 | |
|
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|
4313 static ALboolean Internal_SetMinVolumeSource(ALuint source, ALfloat volume) |
|
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|
4314 { |
|
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diff
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|
4315 ALint channel; |
| 0 | 4316 if(0 == source) |
| 4317 { | |
| 4318 return Internal_SetMinVolumeChannel(-1, volume); | |
| 4319 } | |
| 4320 | |
| 4321 channel = Internal_GetChannel(source); | |
| 4322 if(-1 == channel) | |
| 4323 { | |
| 4324 ALmixer_SetError("Cannot SetMaxVolume: %s", ALmixer_GetError()); | |
|
2
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|
4325 return AL_FALSE; |
| 0 | 4326 } |
| 4327 return Internal_SetMinVolumeChannel(channel, volume); | |
| 4328 } | |
| 4329 | |
|
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|
4330 static ALfloat Internal_GetMinVolumeChannel(ALint channel) |
| 0 | 4331 { |
| 4332 /* | |
| 4333 ALfloat value; | |
| 4334 ALenum error; | |
| 4335 */ | |
| 4336 ALfloat running_total = 0.0f; | |
| 4337 ALfloat retval = 0.0f; | |
| 4338 | |
| 4339 if(channel >= Number_of_Channels_global) | |
| 4340 { | |
| 4341 ALmixer_SetError("Requested channel (%d) exceeds maximum channel (%d) because only %d channels are allocated", channel, Number_of_Channels_global-1, Number_of_Channels_global); | |
| 4342 return -1.0f; | |
| 4343 } | |
| 4344 | |
| 4345 if(channel >= 0) | |
| 4346 { | |
| 4347 /* | |
| 4348 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
| 4349 AL_GAIN, &value); | |
| 4350 if((error = alGetError()) != AL_NO_ERROR) | |
| 4351 { | |
| 4352 ALmixer_SetError("%s", | |
|
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|
4353 alGetString(error) ); |
| 0 | 4354 retval = -1.0f; |
| 4355 } | |
| 4356 else | |
| 4357 { | |
| 4358 retval = value; | |
| 4359 } | |
| 4360 */ | |
| 4361 retval = ALmixer_Channel_List[channel].min_volume; | |
| 4362 | |
| 4363 } | |
| 4364 else | |
| 4365 { | |
|
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|
4366 ALint i; |
| 0 | 4367 for(i=0; i<Number_of_Channels_global; i++) |
| 4368 { | |
| 4369 /* | |
| 4370 alGetSourcef(ALmixer_Channel_List[i].alsource, | |
| 4371 AL_GAIN, &value); | |
| 4372 if((error = alGetError()) != AL_NO_ERROR) | |
| 4373 { | |
| 4374 ALmixer_SetError("%s", | |
|
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|
4375 alGetString(error) ); |
| 0 | 4376 retval = -1; |
| 4377 } | |
| 4378 else | |
| 4379 { | |
| 4380 running_total += value; | |
| 4381 } | |
| 4382 */ | |
| 4383 running_total += ALmixer_Channel_List[i].min_volume; | |
| 4384 } | |
| 4385 if(0 == Number_of_Channels_global) | |
| 4386 { | |
| 4387 ALmixer_SetError("No channels are allocated"); | |
| 4388 retval = -1.0f; | |
| 4389 } | |
| 4390 else | |
| 4391 { | |
| 4392 retval = running_total / Number_of_Channels_global; | |
| 4393 } | |
| 4394 } | |
| 4395 return retval; | |
| 4396 } | |
| 4397 | |
| 4398 static ALfloat Internal_GetMinVolumeSource(ALuint source) | |
| 4399 { | |
|
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|
4400 ALint channel; |
| 0 | 4401 if(0 == source) |
| 4402 { | |
| 4403 return Internal_GetMinVolumeChannel(-1); | |
| 4404 } | |
| 4405 | |
| 4406 channel = Internal_GetChannel(source); | |
| 4407 if(-1 == channel) | |
| 4408 { | |
| 4409 ALmixer_SetError("Cannot GetVolume: %s", ALmixer_GetError()); | |
| 4410 return -1.0f; | |
| 4411 } | |
| 4412 | |
| 4413 return Internal_GetMinVolumeChannel(channel); | |
| 4414 } | |
| 4415 | |
| 4416 | |
| 4417 /* Changes the listener volume */ | |
|
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|
4418 static ALboolean Internal_SetMasterVolume(ALfloat volume) |
| 0 | 4419 { |
| 4420 ALenum error; | |
| 4421 alListenerf(AL_GAIN, volume); | |
| 4422 if((error = alGetError()) != AL_NO_ERROR) | |
| 4423 { | |
| 4424 ALmixer_SetError("%s", | |
|
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|
4425 alGetString(error) ); |
|
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|
4426 return AL_FALSE; |
|
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4427 } |
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|
4428 return AL_TRUE; |
| 0 | 4429 } |
| 4430 | |
| 4431 static ALfloat Internal_GetMasterVolume() | |
| 4432 { | |
| 4433 ALenum error; | |
| 4434 ALfloat volume; | |
| 4435 alGetListenerf(AL_GAIN, &volume); | |
| 4436 if((error = alGetError()) != AL_NO_ERROR) | |
| 4437 { | |
| 4438 ALmixer_SetError("%s", | |
|
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|
4439 alGetString(error) ); |
| 0 | 4440 return -1.0f; |
| 4441 } | |
| 4442 return volume; | |
| 4443 } | |
| 4444 | |
| 4445 | |
| 4446 | |
| 4447 | |
| 4448 /* Will fade out currently playing channels. | |
| 4449 * It starts at the current volume level and goes down */ | |
|
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|
4450 static ALint Internal_ExpireChannel(ALint channel, ALint ticks) |
|
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4451 { |
|
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|
4452 ALuint current_time = ALmixer_GetTicks(); |
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|
4453 ALuint counter = 0; |
| 0 | 4454 |
| 4455 /* We can't accept 0 as a value because of div-by-zero. | |
| 4456 * If zero, just call Halt at normal | |
| 4457 * volume | |
| 4458 */ | |
| 4459 if(0 == ticks) | |
| 4460 { | |
|
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|
4461 return Internal_HaltChannel(channel, AL_FALSE); |
| 0 | 4462 } |
| 4463 if(ticks < -1) | |
| 4464 { | |
| 4465 ticks = -1; | |
| 4466 } | |
| 4467 | |
| 4468 | |
| 4469 if(channel >= Number_of_Channels_global) | |
| 4470 { | |
| 4471 ALmixer_SetError("Requested channel (%d) exceeds maximum channel (%d) because only %d channels are allocated", channel, Number_of_Channels_global-1, Number_of_Channels_global); | |
| 4472 return -1; | |
| 4473 } | |
| 4474 | |
| 4475 if(channel >= 0) | |
| 4476 { | |
| 4477 if(ALmixer_Channel_List[channel].channel_in_use) | |
| 4478 { | |
| 4479 /* Set expire start time */ | |
| 4480 ALmixer_Channel_List[channel].start_time = current_time; | |
| 4481 /* Set the expire ticks */ | |
| 4482 ALmixer_Channel_List[channel].expire_ticks = ticks; | |
| 4483 | |
| 4484 counter++; | |
| 4485 } | |
| 4486 } | |
| 4487 /* Else need to fade out all channels */ | |
| 4488 else | |
| 4489 { | |
|
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4490 ALint i; |
| 0 | 4491 for(i=0; i<Number_of_Channels_global; i++) |
| 4492 { | |
| 4493 if(ALmixer_Channel_List[i].channel_in_use) | |
| 4494 { | |
| 4495 /* Set expire start time */ | |
| 4496 ALmixer_Channel_List[i].start_time = current_time; | |
| 4497 /* Set the expire ticks */ | |
| 4498 ALmixer_Channel_List[i].expire_ticks = ticks; | |
| 4499 | |
| 4500 counter++; | |
| 4501 } | |
| 4502 } /* End for loop */ | |
| 4503 } | |
| 4504 return counter; | |
| 4505 } | |
| 4506 | |
| 4507 | |
|
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|
4508 static ALint Internal_ExpireSource(ALuint source, ALint ticks) |
|
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4509 { |
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4510 ALint channel; |
| 0 | 4511 if(0 == source) |
| 4512 { | |
| 4513 return Internal_ExpireChannel(-1, ticks); | |
| 4514 } | |
| 4515 | |
| 4516 channel = Internal_GetChannel(source); | |
| 4517 if(-1 == channel) | |
| 4518 { | |
| 4519 ALmixer_SetError("Cannot Expire source: %s", ALmixer_GetError()); | |
| 4520 return -1; | |
| 4521 } | |
| 4522 return Internal_ExpireChannel(channel, ticks); | |
| 4523 } | |
| 4524 | |
| 4525 | |
|
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|
4526 static ALint Internal_QueryChannel(ALint channel) |
|
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4527 { |
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4528 ALint i; |
|
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|
4529 ALint counter = 0; |
| 0 | 4530 if(channel >= Number_of_Channels_global) |
| 4531 { | |
| 4532 ALmixer_SetError("Invalid channel: %d", channel); | |
| 4533 return -1; | |
| 4534 } | |
| 4535 | |
| 4536 if(channel >= 0) | |
| 4537 { | |
| 4538 return ALmixer_Channel_List[channel].channel_in_use; | |
| 4539 } | |
| 4540 | |
| 4541 /* Else, return the number of channels in use */ | |
| 4542 for(i=0; i<Number_of_Channels_global; i++) | |
| 4543 { | |
| 4544 if(ALmixer_Channel_List[i].channel_in_use) | |
| 4545 { | |
| 4546 counter++; | |
| 4547 } | |
| 4548 } | |
| 4549 return counter; | |
| 4550 } | |
| 4551 | |
| 4552 | |
|
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|
4553 static ALint Internal_QuerySource(ALuint source) |
|
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4554 { |
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|
4555 ALint channel; |
| 0 | 4556 if(0 == source) |
| 4557 { | |
| 4558 return Internal_QueryChannel(-1); | |
| 4559 } | |
| 4560 | |
| 4561 channel = Internal_GetChannel(source); | |
| 4562 if(-1 == channel) | |
| 4563 { | |
| 4564 ALmixer_SetError("Cannot query source: %s", ALmixer_GetError()); | |
| 4565 return -1; | |
| 4566 } | |
| 4567 | |
| 4568 return Internal_QueryChannel(channel); | |
| 4569 } | |
| 4570 | |
| 4571 | |
|
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|
4572 static ALuint Internal_CountUnreservedUsedChannels() |
|
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|
4573 { |
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|
4574 ALint i; |
|
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|
4575 ALuint counter = 0; |
| 0 | 4576 |
| 4577 | |
| 4578 /* Else, return the number of channels in use */ | |
| 4579 for(i=Number_of_Reserve_Channels_global; i<Number_of_Channels_global; i++) | |
| 4580 { | |
| 4581 if(ALmixer_Channel_List[i].channel_in_use) | |
| 4582 { | |
| 4583 counter++; | |
| 4584 } | |
| 4585 } | |
| 4586 return counter; | |
| 4587 } | |
| 4588 | |
|
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|
4589 static ALuint Internal_CountUnreservedFreeChannels() |
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|
4590 { |
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|
4591 ALint i; |
|
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|
4592 ALuint counter = 0; |
| 0 | 4593 |
| 4594 | |
| 4595 /* Else, return the number of channels in use */ | |
| 4596 for(i=Number_of_Reserve_Channels_global; i<Number_of_Channels_global; i++) | |
| 4597 { | |
| 4598 if( ! ALmixer_Channel_List[i].channel_in_use) | |
| 4599 { | |
| 4600 counter++; | |
| 4601 } | |
| 4602 } | |
| 4603 return counter; | |
| 4604 } | |
| 4605 | |
|
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|
4606 static ALuint Internal_CountAllUsedChannels() |
|
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|
4607 { |
|
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|
4608 ALint i; |
|
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|
4609 ALuint counter = 0; |
| 0 | 4610 |
| 4611 | |
| 4612 /* Else, return the number of channels in use */ | |
| 4613 for(i=0; i<Number_of_Channels_global; i++) | |
| 4614 { | |
| 4615 if(ALmixer_Channel_List[i].channel_in_use) | |
| 4616 { | |
| 4617 counter++; | |
| 4618 } | |
| 4619 } | |
| 4620 return counter; | |
| 4621 } | |
| 4622 | |
|
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|
4623 static ALuint Internal_CountAllFreeChannels() |
|
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|
4624 { |
|
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|
4625 ALint i; |
|
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|
4626 ALuint counter = 0; |
| 0 | 4627 |
| 4628 | |
| 4629 /* Else, return the number of channels in use */ | |
| 4630 for(i=0; i<Number_of_Channels_global; i++) | |
| 4631 { | |
| 4632 if( ! ALmixer_Channel_List[i].channel_in_use) | |
| 4633 { | |
| 4634 counter++; | |
| 4635 } | |
| 4636 } | |
| 4637 return counter; | |
| 4638 } | |
| 4639 | |
| 4640 | |
|
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|
4641 static ALint Internal_PlayingChannel(ALint channel) |
|
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|
4642 { |
|
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|
4643 ALint i; |
|
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|
4644 ALint counter = 0; |
| 0 | 4645 ALint state; |
| 4646 | |
| 4647 if(channel >= Number_of_Channels_global) | |
| 4648 { | |
| 4649 ALmixer_SetError("Invalid channel: %d", channel); | |
| 4650 return -1; | |
| 4651 } | |
| 4652 | |
| 4653 if(channel >= 0) | |
| 4654 { | |
| 4655 if(ALmixer_Channel_List[channel].channel_in_use) | |
| 4656 { | |
| 4657 alGetSourcei( | |
| 4658 ALmixer_Channel_List[channel].alsource, | |
| 4659 AL_SOURCE_STATE, &state | |
| 4660 ); | |
| 4661 if(AL_PLAYING == state) | |
| 4662 { | |
| 4663 return 1; | |
| 4664 } | |
| 4665 } | |
| 4666 return 0; | |
| 4667 } | |
| 4668 | |
| 4669 /* Else, return the number of channels in use */ | |
| 4670 for(i=0; i<Number_of_Channels_global; i++) | |
| 4671 { | |
| 4672 if(ALmixer_Channel_List[i].channel_in_use) | |
| 4673 { | |
| 4674 alGetSourcei( | |
| 4675 ALmixer_Channel_List[i].alsource, | |
| 4676 AL_SOURCE_STATE, &state | |
| 4677 ); | |
| 4678 if(AL_PLAYING == state) | |
| 4679 { | |
| 4680 counter++; | |
| 4681 } | |
| 4682 } | |
| 4683 } | |
| 4684 return counter; | |
| 4685 } | |
| 4686 | |
| 4687 | |
|
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|
4688 static ALint Internal_PlayingSource(ALuint source) |
|
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|
4689 { |
|
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|
4690 ALint channel; |
| 0 | 4691 if(0 == source) |
| 4692 { | |
| 4693 return Internal_PlayingChannel(-1); | |
| 4694 } | |
| 4695 | |
| 4696 channel = Internal_GetChannel(source); | |
| 4697 if(-1 == channel) | |
| 4698 { | |
| 4699 ALmixer_SetError("Cannot query source: %s", ALmixer_GetError()); | |
| 4700 return -1; | |
| 4701 } | |
| 4702 | |
| 4703 return Internal_PlayingChannel(channel); | |
| 4704 } | |
| 4705 | |
| 4706 | |
|
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|
4707 static ALint Internal_PausedChannel(ALint channel) |
|
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|
4708 { |
|
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|
4709 ALint i; |
|
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|
4710 ALint counter = 0; |
| 0 | 4711 ALint state; |
| 4712 | |
| 4713 if(channel >= Number_of_Channels_global) | |
| 4714 { | |
| 4715 ALmixer_SetError("Invalid channel: %d", channel); | |
| 4716 return -1; | |
| 4717 } | |
| 4718 | |
| 4719 if(channel >= 0) | |
| 4720 { | |
| 4721 if(ALmixer_Channel_List[channel].channel_in_use) | |
| 4722 { | |
| 4723 alGetSourcei( | |
| 4724 ALmixer_Channel_List[channel].alsource, | |
| 4725 AL_SOURCE_STATE, &state | |
| 4726 ); | |
| 4727 if(AL_PAUSED == state) | |
| 4728 { | |
| 4729 return 1; | |
| 4730 } | |
| 4731 } | |
| 4732 return 0; | |
| 4733 } | |
| 4734 | |
| 4735 /* Else, return the number of channels in use */ | |
| 4736 for(i=0; i<Number_of_Channels_global; i++) | |
| 4737 { | |
| 4738 if(ALmixer_Channel_List[i].channel_in_use) | |
| 4739 { | |
| 4740 alGetSourcei( | |
| 4741 ALmixer_Channel_List[i].alsource, | |
| 4742 AL_SOURCE_STATE, &state | |
| 4743 ); | |
| 4744 if(AL_PAUSED == state) | |
| 4745 { | |
| 4746 counter++; | |
| 4747 } | |
| 4748 } | |
| 4749 } | |
| 4750 return counter; | |
| 4751 } | |
| 4752 | |
| 4753 | |
|
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|
4754 static ALint Internal_PausedSource(ALuint source) |
|
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|
4755 { |
|
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|
4756 ALint channel; |
| 0 | 4757 if(0 == source) |
| 4758 { | |
| 4759 return Internal_PausedChannel(-1); | |
| 4760 } | |
| 4761 | |
| 4762 channel = Internal_GetChannel(source); | |
| 4763 if(-1 == channel) | |
| 4764 { | |
| 4765 ALmixer_SetError("Cannot query source: %s", ALmixer_GetError()); | |
| 4766 return -1; | |
| 4767 } | |
| 4768 | |
| 4769 return Internal_PausedChannel(channel); | |
| 4770 } | |
| 4771 | |
| 4772 | |
| 4773 | |
| 4774 | |
| 4775 | |
| 4776 | |
| 4777 /* Private function for Updating ALmixer. | |
| 4778 * This is a very big and ugly function. | |
| 4779 * It should return the number of buffers that were | |
| 4780 * queued during the call. The value might be | |
| 4781 * used to guage how long you might wait to | |
| 4782 * call the next update loop in case you are worried | |
| 4783 * about preserving CPU cycles. The idea is that | |
| 4784 * when a buffer is queued, there was probably some | |
| 4785 * CPU intensive looping which took awhile. | |
| 4786 * It's mainly provided as a convenience. | |
|
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|
4787 * Timing the call with ALmixer_GetTicks() would produce |
| 0 | 4788 * more accurate information. |
| 4789 * Returns a negative value if there was an error, | |
| 4790 * the value being the number of errors. | |
| 4791 */ | |
|
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|
4792 static ALint Update_ALmixer(void* data) |
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|
4793 { |
|
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|
4794 ALint retval = 0; |
|
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|
4795 ALint error_flag = 0; |
| 0 | 4796 ALenum error; |
| 4797 ALint state; | |
|
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4798 ALint i=0; |
|
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|
4799 |
|
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|
4800 #ifdef ENABLE_ALMIXER_THREADS |
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|
4801 SDL_LockMutex(s_simpleLock); |
|
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|
4802 #endif |
| 0 | 4803 if(0 == ALmixer_Initialized) |
| 4804 { | |
|
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|
4805 #ifdef ENABLE_ALMIXER_THREADS |
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|
4806 SDL_UnlockMutex(s_simpleLock); |
|
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|
4807 #endif |
| 0 | 4808 return 0; |
| 4809 } | |
|
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|
4810 |
|
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|
4811 /* Bypass if in interruption event */ |
|
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4812 if(NULL == alcGetCurrentContext()) |
|
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|
4813 { |
|
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|
4814 #ifdef ENABLE_ALMIXER_THREADS |
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4815 SDL_UnlockMutex(s_simpleLock); |
|
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|
4816 #endif |
|
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|
4817 return 0; |
|
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|
4818 } |
| 0 | 4819 |
| 4820 /* Check the quick flag to see if anything needs updating */ | |
| 4821 /* If anything is playing, then we have to do work */ | |
| 4822 if( 0 == Is_Playing_global) | |
| 4823 { | |
|
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|
4824 #ifdef ENABLE_ALMIXER_THREADS |
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|
4825 SDL_UnlockMutex(s_simpleLock); |
|
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|
4826 #endif |
| 0 | 4827 return 0; |
| 4828 } | |
| 4829 /* Clear error */ | |
| 4830 if((error = alGetError()) != AL_NO_ERROR) | |
| 4831 { | |
| 4832 fprintf(stderr, "08Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
|
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|
4833 alGetString(error)); |
| 0 | 4834 } |
| 4835 alGetError(); | |
| 4836 | |
| 4837 for(i=0; i<Number_of_Channels_global; i++) | |
| 4838 { | |
| 4839 if( ALmixer_Channel_List[i].channel_in_use ) | |
| 4840 { | |
| 4841 | |
| 4842 /* For simplicity, before we do anything else, | |
| 4843 * we can check the timeout and fading values | |
| 4844 * and do the appropriate things | |
| 4845 */ | |
|
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|
4846 ALuint current_time = ALmixer_GetTicks(); |
| 0 | 4847 |
| 4848 /* Check to see if we need to halt due to Timed play */ | |
| 4849 if(ALmixer_Channel_List[i].expire_ticks != -1) | |
| 4850 { | |
|
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|
4851 ALuint target_time = (ALuint)ALmixer_Channel_List[i].expire_ticks |
| 0 | 4852 + ALmixer_Channel_List[i].start_time; |
| 4853 alGetSourcei(ALmixer_Channel_List[i].alsource, | |
| 4854 AL_SOURCE_STATE, &state); | |
| 4855 if((error = alGetError()) != AL_NO_ERROR) | |
| 4856 { | |
| 4857 fprintf(stderr, "06Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
|
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|
4858 alGetString(error)); |
| 0 | 4859 } |
| 4860 | |
| 4861 /* Check the time, and also make sure that it is not | |
| 4862 * paused (if paused, we don't want to make the | |
| 4863 * evaluation because when resumed, we will adjust | |
| 4864 * the times to compensate for the pause). | |
| 4865 */ | |
| 4866 if( (current_time >= target_time) | |
| 4867 && (state != AL_PAUSED) ) | |
| 4868 { | |
| 4869 /* Stop the playback */ | |
|
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|
4870 Internal_HaltChannel(i, AL_FALSE); |
| 0 | 4871 if((error = alGetError()) != AL_NO_ERROR) |
| 4872 { | |
| 4873 fprintf(stderr, "07Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
|
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|
4874 alGetString(error)); |
| 0 | 4875 } |
| 4876 | |
| 4877 /* Everything should be done so go on to the next loop */ | |
| 4878 continue; | |
| 4879 } | |
| 4880 } /* End if time expired check */ | |
| 4881 | |
| 4882 /* Check to see if we need to adjust the volume for fading */ | |
| 4883 if( ALmixer_Channel_List[i].fade_enabled ) | |
| 4884 { | |
|
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|
4885 ALuint target_time = ALmixer_Channel_List[i].fade_expire_ticks |
| 0 | 4886 + ALmixer_Channel_List[i].fade_start_time; |
| 4887 alGetSourcei(ALmixer_Channel_List[i].alsource, | |
| 4888 AL_SOURCE_STATE, &state); | |
| 4889 if((error = alGetError()) != AL_NO_ERROR) | |
| 4890 { | |
| 4891 fprintf(stderr, "05Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
|
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|
4892 alGetString(error)); |
| 0 | 4893 } |
| 4894 | |
| 4895 /* Check the time, and also make sure that it is not | |
| 4896 * paused (if paused, we don't want to make the | |
| 4897 * evaluation because when resumed, we will adjust | |
| 4898 * the times to compensate for the pause). | |
| 4899 */ | |
| 4900 if(state != AL_PAUSED) | |
| 4901 { | |
| 4902 ALfloat t; | |
|
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|
4903 ALuint delta_time; |
| 0 | 4904 ALfloat current_volume; |
| 4905 if(current_time >= target_time) | |
| 4906 { | |
| 4907 /* Need to constrain value to the end time | |
| 4908 * (can't go pass the value for calculations) | |
| 4909 */ | |
| 4910 current_time = target_time; | |
| 4911 /* We can disable the fade flag now */ | |
| 4912 ALmixer_Channel_List[i].fade_enabled = 0; | |
| 4913 } | |
| 4914 /* Use the linear interpolation formula: | |
| 4915 * X = (1-t)x0 + tx1 | |
| 4916 * where x0 would be the start value | |
| 4917 * and x1 is the final value | |
| 4918 * and t is delta_time*inv_time (adjusts 0 <= time <= 1) | |
| 4919 * delta_time = current_time-start_time | |
| 4920 * inv_time = 1/ (end_time-start_time) | |
| 4921 * so t = current_time-start_time / (end_time-start_time) | |
| 4922 * | |
| 4923 */ | |
| 4924 delta_time = current_time - ALmixer_Channel_List[i].fade_start_time; | |
| 4925 t = (ALfloat) delta_time * ALmixer_Channel_List[i].fade_inv_time; | |
| 4926 current_volume = (1.0f-t) * ALmixer_Channel_List[i].fade_start_volume | |
| 4927 + t * ALmixer_Channel_List[i].fade_end_volume; | |
|
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|
4928 /* |
|
12
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|
4929 fprintf(stderr, "start_vol=%f, end_vol:%f, current_volume: %f\n", ALmixer_Channel_List[i].fade_start_volume, ALmixer_Channel_List[i].fade_end_volume, current_volume); |
|
20
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|
4930 */ |
| 0 | 4931 /* Set the volume */ |
| 4932 alSourcef(ALmixer_Channel_List[i].alsource, | |
|
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|
4933 AL_GAIN, current_volume); |
| 0 | 4934 if((error = alGetError()) != AL_NO_ERROR) |
| 4935 { | |
| 4936 fprintf(stderr, "04Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
|
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|
4937 alGetString(error)); |
| 0 | 4938 } |
| 4939 | |
| 4940 /* | |
| 4941 fprintf(stderr, "Current time =%d\n", current_time); | |
| 4942 fprintf(stderr, "Current vol=%f on channel %d\n", current_volume, i); | |
| 4943 */ | |
| 4944 } /* End if not PAUSED */ | |
| 4945 } /* End if fade_enabled */ | |
| 4946 | |
| 4947 | |
| 4948 /* Okay, now that the time expired and fading stuff | |
| 4949 * is done, do the rest of the hard stuff | |
| 4950 */ | |
| 4951 | |
| 4952 | |
| 4953 /* For predecoded, check to see if done */ | |
| 4954 if( ALmixer_Channel_List[i].almixer_data->decoded_all ) | |
| 4955 { | |
| 4956 | |
| 4957 #if 0 | |
| 4958 /********* Remove this **********/ | |
| 4959 ALint buffers_processed; | |
| 4960 ALint buffers_still_queued; | |
| 4961 fprintf(stderr, "For Predecoded\n"); | |
| 4962 | |
| 4963 alGetSourcei( | |
| 4964 ALmixer_Channel_List[i].alsource, | |
| 4965 AL_SOURCE_STATE, &state | |
| 4966 ); | |
| 4967 switch(state) { | |
| 4968 case AL_PLAYING: | |
| 4969 fprintf(stderr, "Channel '%d' is PLAYING\n", i); | |
| 4970 break; | |
| 4971 case AL_PAUSED: | |
| 4972 fprintf(stderr, "Channel '%d' is PAUSED\n",i); | |
| 4973 break; | |
| 4974 case AL_STOPPED: | |
| 4975 fprintf(stderr, "Channel '%d' is STOPPED\n",i); | |
| 4976 break; | |
| 4977 case AL_INITIAL: | |
| 4978 fprintf(stderr, "Channel '%d' is INITIAL\n",i); | |
| 4979 break; | |
| 4980 default: | |
| 4981 fprintf(stderr, "Channel '%d' is UNKNOWN\n",i); | |
| 4982 break; | |
| 4983 } | |
| 4984 | |
| 4985 alGetSourcei( | |
| 4986 ALmixer_Channel_List[i].alsource, | |
| 4987 AL_BUFFERS_PROCESSED, &buffers_processed | |
| 4988 ); | |
| 4989 fprintf(stderr, "Buffers processed = %d\n", buffers_processed); | |
| 4990 | |
| 4991 alGetSourcei( | |
| 4992 ALmixer_Channel_List[i].alsource, | |
| 4993 AL_BUFFERS_QUEUED, &buffers_still_queued | |
| 4994 ); | |
| 4995 | |
| 4996 /******** END REMOVE *******/ | |
| 4997 #endif | |
| 4998 /* FIXME: Ugh! Somewhere an alError is being thrown ("Invalid Enum Value"), but I can't | |
| 4999 * find it. It only seems to be thrown for OS X. I placed error messages after every al* | |
| 5000 * command I could find in the above loops, but the error doesn't seem to show | |
| 5001 * up until around here. I mistook it for a get queued buffers | |
| 5002 * error in OS X. I don't think there's an error down there. | |
| 5003 * For now, I'm clearing the error here. | |
| 5004 */ | |
| 5005 | |
| 5006 if((error = alGetError()) != AL_NO_ERROR) | |
| 5007 { | |
| 5008 fprintf(stderr, "03Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
|
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|
5009 alGetString(error)); |
| 0 | 5010 } |
| 5011 | |
| 5012 | |
| 5013 alGetSourcei( | |
| 5014 ALmixer_Channel_List[i].alsource, | |
| 5015 AL_SOURCE_STATE, &state | |
| 5016 ); | |
| 5017 if((error = alGetError()) != AL_NO_ERROR) | |
| 5018 { | |
| 5019 fprintf(stderr, "02Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
|
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|
5020 alGetString(error)); |
| 0 | 5021 } |
| 5022 | |
| 5023 | |
| 5024 if(AL_STOPPED == state) | |
| 5025 { | |
| 5026 /* Playback has ended. | |
| 5027 * Loop if necessary, or launch callback | |
| 5028 * and clear channel (or clear channel and | |
| 5029 * then launch callback?) | |
| 5030 */ | |
| 5031 | |
| 5032 | |
| 5033 /* Need to check for loops */ | |
| 5034 if(ALmixer_Channel_List[i].loops != 0) | |
| 5035 { | |
| 5036 /* Corner Case: If the buffer has | |
| 5037 * been modified using Seek, | |
| 5038 * the loop will start at the seek | |
| 5039 * position. | |
| 5040 */ | |
| 5041 if(ALmixer_Channel_List[i].loops != -1) | |
| 5042 { | |
| 5043 ALmixer_Channel_List[i].loops--; | |
| 5044 } | |
| 5045 alSourcePlay(ALmixer_Channel_List[i].alsource); | |
| 5046 if((error = alGetError()) != AL_NO_ERROR) | |
| 5047 { | |
| 5048 fprintf(stderr, "50Testing error: %s\n", | |
|
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|
5049 alGetString(error)); |
| 0 | 5050 } |
| 5051 continue; | |
| 5052 } | |
| 5053 /* No loops. End play. */ | |
| 5054 else | |
| 5055 { | |
| 5056 /* Problem: It seems that when mixing | |
| 5057 * streamed and predecoded sources, | |
| 5058 * the previous instance lingers, | |
| 5059 * so we need to force remove | |
| 5060 * the data from the source. | |
| 5061 * The sharing problem | |
| 5062 * occurs when a previous predecoded buffer is played on | |
| 5063 * a source, and then a streamed source is played later | |
| 5064 * on that same source. OpenAL isn't consistently | |
| 5065 * removing the previous buffer so both get played. | |
| 5066 * (Different dists seem to have different quirks. | |
| 5067 * The problem might lead to crashes in the worst case.) | |
| 5068 */ | |
| 5069 /* Additional problem: There is another | |
| 5070 * inconsistency among OpenAL distributions. | |
| 5071 * Both Loki and Creative Windows seem to keep | |
| 5072 * the buffer queued which requires removing. | |
| 5073 * But the Creative Macintosh version does | |
| 5074 * not have any buffer queued after play | |
| 5075 * and it returns the error: Invalid Enum Value | |
| 5076 * if I try to unqueue it. | |
| 5077 * So I'm going to put in a check to see if I | |
| 5078 * can detect any buffers queued first | |
| 5079 * and then unqueue them if I can see them. | |
| 5080 * Additional note: The new CoreAudio based | |
| 5081 * implementation leaves it's buffer queued | |
| 5082 * like Loki and Creative Windows. But | |
| 5083 * considering all the problems I'm having | |
| 5084 * with the different distributions, this | |
| 5085 * check seems reasonable. | |
| 5086 */ | |
| 5087 ALint buffers_still_queued; | |
| 5088 if((error = alGetError()) != AL_NO_ERROR) | |
| 5089 { | |
| 5090 fprintf(stderr, "01Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
|
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|
5091 alGetString(error)); |
| 0 | 5092 } |
| 5093 | |
| 5094 alGetSourcei( | |
| 5095 ALmixer_Channel_List[i].alsource, | |
| 5096 AL_BUFFERS_QUEUED, &buffers_still_queued | |
| 5097 ); | |
| 5098 if((error = alGetError()) != AL_NO_ERROR) | |
| 5099 { | |
| 5100 fprintf(stderr, "Error with unqueue, for OS X this is expected: %s\n", | |
|
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|
5101 alGetString(error)); |
| 0 | 5102 ALmixer_SetError("Failed detecting unqueued predecoded buffer (expected with OS X): %s", |
|
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diff
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|
5103 alGetString(error) ); |
| 0 | 5104 error_flag--; |
| 5105 } | |
| 5106 if(buffers_still_queued > 0) | |
| 5107 { | |
| 1 | 5108 |
| 5109 #if 0 /* This triggers an error in OS X Core Audio. */ | |
| 5110 alSourceUnqueueBuffers( | |
| 5111 ALmixer_Channel_List[i].alsource, | |
| 5112 1, | |
| 5113 ALmixer_Channel_List[i].almixer_data->buffer | |
| 5114 ); | |
| 5115 #else | |
| 5116 /* fprintf(stderr, "In the Bob Aron section...about to clear source\n"); | |
| 0 | 5117 PrintQueueStatus(ALmixer_Channel_List[i].alsource); |
| 1 | 5118 */ |
| 0 | 5119 /* Rather than force unqueuing the buffer, let's see if |
| 5120 * setting the buffer to none works (the OpenAL 1.0 | |
| 5121 * Reference Annotation suggests this should work). | |
| 5122 */ | |
| 5123 alSourcei(ALmixer_Channel_List[i].alsource, | |
| 5124 AL_BUFFER, AL_NONE); | |
| 5125 /* | |
| 5126 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
| 5127 */ | |
| 1 | 5128 #endif |
| 0 | 5129 if((error = alGetError()) != AL_NO_ERROR) |
| 5130 { | |
| 5131 fprintf(stderr, "Error with unqueue, after alSourceUnqueueBuffers, buffers_still_queued=%d, error is: %s", buffers_still_queued, | |
|
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|
5132 alGetString(error)); |
| 0 | 5133 ALmixer_SetError("Predecoded Unqueue buffer failed: %s", |
|
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|
5134 alGetString(error) ); |
| 0 | 5135 error_flag--; |
| 5136 } | |
| 5137 | |
| 5138 } | |
| 5139 | |
|
10
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|
5140 /* Launch callback */ |
|
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|
5141 Invoke_Channel_Done_Callback(i, AL_TRUE); |
|
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|
5142 |
| 0 | 5143 Clean_Channel(i); |
| 5144 /* Subtract counter */ | |
| 5145 Is_Playing_global--; | |
| 5146 | |
| 5147 | |
| 5148 /* We're done for this loop. | |
| 5149 * Go to next channel | |
| 5150 */ | |
| 5151 continue; | |
| 5152 } | |
| 5153 continue; | |
| 5154 } | |
| 5155 } /* End if decoded_all */ | |
| 5156 /* For streamed */ | |
| 5157 else | |
| 5158 { | |
| 5159 ALint buffers_processed; | |
| 5160 ALint buffers_still_queued; | |
| 5161 ALint current_buffer_id; | |
| 5162 | |
| 5163 ALuint unqueued_buffer_id; | |
|
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|
5164 ALuint number_of_buffers_to_queue_this_pass = ALmixer_Channel_List[i].almixer_data->num_target_buffers_per_pass; |
|
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|
5165 ALuint current_count_of_buffer_queue_passes = 0; |
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|
5166 |
| 0 | 5167 #if 0 |
| 5168 /********* Remove this **********/ | |
| 5169 fprintf(stderr, "For Streamed\n"); | |
| 5170 | |
| 5171 alGetSourcei( | |
| 5172 ALmixer_Channel_List[i].alsource, | |
| 5173 AL_SOURCE_STATE, &state | |
| 5174 ); | |
| 5175 switch(state) { | |
| 5176 case AL_PLAYING: | |
| 5177 fprintf(stderr, "Channel '%d' is PLAYING\n", i); | |
| 5178 break; | |
| 5179 case AL_PAUSED: | |
| 5180 fprintf(stderr, "Channel '%d' is PAUSED\n",i); | |
| 5181 break; | |
| 5182 case AL_STOPPED: | |
| 5183 fprintf(stderr, "Channel '%d' is STOPPED\n",i); | |
| 5184 break; | |
| 5185 case AL_INITIAL: | |
| 5186 fprintf(stderr, "Channel '%d' is INITIAL\n",i); | |
| 5187 break; | |
| 5188 default: | |
| 5189 fprintf(stderr, "Channel '%d' is UNKNOWN\n",i); | |
| 5190 break; | |
| 5191 } | |
| 5192 /******** END REMOVE *******/ | |
| 5193 #endif | |
| 5194 /* Get the number of buffers still queued */ | |
| 5195 alGetSourcei( | |
| 5196 ALmixer_Channel_List[i].alsource, | |
| 5197 AL_BUFFERS_QUEUED, &buffers_still_queued | |
| 5198 ); | |
| 5199 if((error = alGetError()) != AL_NO_ERROR) | |
| 5200 { | |
| 5201 fprintf(stderr, "51Testing error: %s\n", | |
|
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|
5202 alGetString(error)); |
| 0 | 5203 } |
| 5204 /* Get the number of buffers processed | |
| 5205 * so we know if we need to refill | |
| 5206 */ | |
|
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|
5207 /* WARNING: It looks like Snow Leopard some times crashes on this call under x86_64 |
|
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|
5208 * typically when I suffer a lot of buffer underruns. |
|
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|
5209 */ |
|
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|
5210 // fprintf(stderr, "calling AL_BUFFERS_PROCESSED on source:%d", ALmixer_Channel_List[i].alsource); |
| 0 | 5211 alGetSourcei( |
| 5212 ALmixer_Channel_List[i].alsource, | |
| 5213 AL_BUFFERS_PROCESSED, &buffers_processed | |
| 5214 ); | |
| 5215 if((error = alGetError()) != AL_NO_ERROR) | |
| 5216 { | |
| 5217 fprintf(stderr, "52Testing error: %s\n", | |
|
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|
5218 alGetString(error)); |
| 0 | 5219 } |
|
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|
5220 // fprintf(stderr, "finished AL_BUFFERS_PROCESSED, buffers_processed=%d", buffers_processed); |
| 0 | 5221 |
| 5222 /* WTF!!! The Nvidia distribution is failing on the alGetSourcei(source, AL_BUFFER, buf_id) call. | |
| 5223 * I need this call to figure out which buffer OpenAL is currently playing. | |
| 5224 * It keeps returning an "Invalid Enum" error. | |
| 5225 * This is totally inane! It's a basic query. | |
| 5226 * By the spec, this functionality is not explicitly defined so Nvidia refuses to | |
| 5227 * fix this behavior, even though all other distributions work fine with this. | |
| 5228 * The only workaround for this is for | |
| 5229 * a significant rewrite of my code which requires me to | |
| 5230 * duplicate the OpenAL queued buffers state with my own | |
| 5231 * code and try to derive what the current playing buffer is by indirect observation of | |
| 5232 * looking at buffers_processed. But of course this has a ton of downsides since my | |
| 5233 * queries do not give me perfect timing of what OpenAL is actually doing and | |
| 5234 * the fact that some of the distributions seem to have buffer queuing problems | |
| 5235 * with their query results (CoreAudio). This also means a ton of extra code | |
| 5236 * on my side. The lack of support of a 1 line call has required me to | |
| 5237 * implement yet another entire state machine. <sigh> | |
| 5238 */ | |
| 5239 #if 0 /* This code will not work until possibly OpenAL 1.1 because of Nvidia */ | |
| 5240 /* Get the id to the current buffer playing */ | |
| 5241 alGetSourcei( | |
| 5242 ALmixer_Channel_List[i].alsource, | |
| 5243 AL_BUFFER, ¤t_buffer_id | |
| 5244 ); | |
| 5245 if((error = alGetError()) != AL_NO_ERROR) | |
| 5246 { | |
| 5247 fprintf(stderr, "53Testing error: %s\n", | |
|
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|
5248 alGetString(error)); |
| 0 | 5249 } |
| 5250 | |
| 5251 /* Before the hard stuff, check to see if the | |
| 5252 * current queued AL buffer has changed. | |
| 5253 * If it has, we should launch a data callback if | |
| 5254 * necessary | |
| 5255 */ | |
| 5256 if( ((ALuint)current_buffer_id) != | |
| 5257 ALmixer_Channel_List[i].almixer_data->current_buffer) | |
| 5258 { | |
| 5259 ALmixer_Channel_List[i].almixer_data->current_buffer | |
| 5260 = (ALuint)current_buffer_id; | |
| 5261 | |
| 5262 Invoke_Streamed_Channel_Data_Callback(i, ALmixer_Channel_List[i].almixer_data, current_buffer_id); | |
| 5263 } | |
| 5264 #else | |
| 5265 /* Only do this if "access_data" was requested (i.e. the circular_buffer!=NULL) | |
| 5266 * And if one of the two are true: | |
| 5267 * Either buffers_processed > 0 (because the current_buffer might have changed) | |
| 5268 * or if the current_buffer==0 (because we are in an initial state or recovering from | |
| 5269 * a buffer underrun) | |
| 5270 */ | |
| 5271 if((ALmixer_Channel_List[i].almixer_data->circular_buffer_queue != NULL) | |
| 5272 && ( | |
| 5273 (buffers_processed > 0) || (0 == ALmixer_Channel_List[i].almixer_data->current_buffer) | |
| 5274 ) | |
| 5275 ) | |
| 5276 { | |
|
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|
5277 ALint k; |
|
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|
5278 ALuint queue_ret_flag; |
|
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|
5279 ALubyte is_out_of_sync = 0; |
|
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|
5280 ALuint my_queue_size = CircularQueueUnsignedInt_Size(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); |
| 1 | 5281 /* Ugh, I have to deal with signed/unsigned mismatch here. */ |
| 5282 ALint buffers_unplayed_int = buffers_still_queued - buffers_processed; | |
|
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|
5283 ALuint unplayed_buffers; |
| 1 | 5284 if(buffers_unplayed_int < 0) |
| 5285 { | |
| 5286 unplayed_buffers = 0; | |
| 5287 } | |
| 5288 else | |
| 5289 { | |
|
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|
5290 unplayed_buffers = (ALuint)buffers_unplayed_int; |
| 1 | 5291 } |
| 0 | 5292 /* |
| 5293 fprintf(stderr, "Queue in processed check, before pop, buffers_processed=%d\n", buffers_processed); | |
| 5294 CircularQueueUnsignedInt_Print(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); | |
| 5295 */ | |
| 5296 /* We can't make any determinations solely based on the number of buffers_processed | |
| 5297 * because currently, we only unqueue 1 buffer per loop. That means if 2 or more | |
| 5298 * buffers became processed in one loop, the following loop, we would have | |
| 5299 * at least that_many-1 buffers_processed (plus possible new processed). | |
| 5300 * If we tried to just remove 1 buffer from our queue, we would be incorrect | |
| 5301 * because we would not actually reflect the current playing buffer. | |
| 5302 * So the solution seems to be to make sure our queue is the same size | |
| 5303 * as the number of buffers_queued-buffers_processed, and return the head of our queue | |
| 5304 * as the current playing buffer. | |
| 5305 */ | |
| 5306 /* Also, we have a corner case. When we first start playing or if we have | |
| 5307 * a buffer underrun, we have not done a data callback. | |
| 5308 * In this case, we need to see if there is any new data in our queue | |
| 5309 * and if so, launch that data callback. | |
| 5310 */ | |
| 5311 /* Warning, this code risks the possibility of no data callback being fired if | |
| 5312 * the system is really late (or skipped buffers). | |
| 5313 */ | |
| 5314 | |
| 5315 /* First, let's syncronize our queue with the OpenAL queue */ | |
| 5316 #if 0 | |
| 5317 fprintf(stderr, "inside, Buffers processed=%d, Buffers queued=%d, my queue=%d\n", | |
| 5318 buffers_processed, buffers_still_queued, my_queue_size); | |
| 1 | 5319 #endif |
|
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|
5320 is_out_of_sync = 1; |
|
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|
5321 for(k=0; k<buffers_processed; k++) |
| 0 | 5322 { |
|
2
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|
5323 queue_ret_flag = CircularQueueUnsignedInt_PopFront( |
|
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1
diff
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|
5324 ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); |
|
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|
5325 if(0 == queue_ret_flag) |
| 0 | 5326 { |
|
2
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1
diff
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|
5327 fprintf(stderr, "53 Error popping queue\n"); |
|
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|
5328 } |
|
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diff
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|
5329 } |
| 0 | 5330 my_queue_size = CircularQueueUnsignedInt_Size(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); |
| 5331 /* We have several possibilities we need to handle: | |
| 5332 * 1) We are in an initial state or underrun and need to do a data callback on the head. | |
| 5333 * 2) We were out of sync and need to do a new data callback on the new head. | |
| 5334 * 3) We were not out of sync but just had left over processed buffers which caused us to | |
| 5335 * fall in this block of code. (Don't do anything.) | |
| 5336 */ | |
| 5337 if( (0 == ALmixer_Channel_List[i].almixer_data->current_buffer) || (1 == is_out_of_sync) ) | |
| 5338 { | |
| 5339 if(my_queue_size > 0) | |
| 5340 { | |
| 5341 current_buffer_id = CircularQueueUnsignedInt_Front( | |
| 5342 ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); | |
| 5343 if(0 == current_buffer_id) | |
| 5344 { | |
| 5345 fprintf(stderr, "53a Internal Error, current_buffer_id=0 when it shouldn't be 0\n"); | |
| 5346 } | |
| 5347 /* | |
| 5348 else | |
| 5349 { | |
| 5350 fprintf(stderr, "Queue in processed check, after pop\n"); | |
| 5351 CircularQueueUnsignedInt_Print(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); | |
| 5352 } | |
| 5353 */ | |
| 5354 ALmixer_Channel_List[i].almixer_data->current_buffer | |
| 5355 = (ALuint)current_buffer_id; | |
| 5356 | |
| 5357 #if 0 | |
| 5358 /* Remove me...only for checking...doesn't work on Nvidia */ | |
| 5359 { | |
| 5360 ALuint real_id; | |
| 5361 alGetSourcei( | |
| 5362 ALmixer_Channel_List[i].alsource, | |
| 5363 AL_BUFFER, &real_id | |
| 5364 ); | |
| 5365 alGetError(); | |
| 5366 fprintf(stderr, "Callback fired on data buffer=%d, real_id shoud be=%d\n", current_buffer_id, real_id); | |
| 5367 } | |
| 5368 #endif | |
| 5369 Invoke_Streamed_Channel_Data_Callback(i, ALmixer_Channel_List[i].almixer_data, current_buffer_id); | |
| 5370 } | |
| 5371 else | |
| 5372 { | |
| 1 | 5373 /* |
| 0 | 5374 fprintf(stderr, "53b, Notice/Warning:, OpenAL queue has been depleted.\n"); |
| 1 | 5375 PrintQueueStatus(ALmixer_Channel_List[i].alsource); |
| 5376 */ | |
| 0 | 5377 /* In this case, we might either be in an underrun or finished with playback */ |
| 5378 ALmixer_Channel_List[i].almixer_data->current_buffer = 0; | |
| 5379 } | |
| 5380 } | |
| 5381 } | |
| 5382 #endif | |
| 5383 | |
| 5384 | |
| 5385 | |
| 5386 /* Just a test - remove | |
| 5387 if( ALmixer_Channel_List[i].loops > 0) | |
| 5388 { | |
| 5389 fprintf(stderr, ">>>>>>>>>>>>>>>Loops = %d\n", | |
| 5390 ALmixer_Channel_List[i].loops); | |
| 5391 } | |
| 5392 */ | |
| 5393 #if 0 | |
| 5394 fprintf(stderr, "Buffers processed = %d\n", buffers_processed); | |
| 5395 fprintf(stderr, "Buffers queued= %d\n", buffers_still_queued); | |
| 5396 #endif | |
| 5397 /* We've used up a buffer so we need to unqueue and replace */ | |
| 5398 /* Okay, it gets more complicated here: | |
| 5399 * We need to Queue more data | |
| 5400 * if buffers_processed > 0 or | |
| 5401 * if num_of_buffers_in_use < NUMBER_OF_QUEUE_BUFFERS | |
| 5402 * but we don't do this if at EOF, | |
| 5403 * except when there is looping | |
| 5404 */ | |
|
28
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|
5405 |
|
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|
5406 /* NEW FEATURE: Try to queue up more buffers per pass, allowing the size of the buffer to be decoupled. */ |
|
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|
5407 /* TODO: Optimization: If number of available buffers (max_buffers-buffers_in_use), adjust the number of buffers to queue for this pass. */ |
|
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|
5408 for(current_count_of_buffer_queue_passes=0; current_count_of_buffer_queue_passes<number_of_buffers_to_queue_this_pass; current_count_of_buffer_queue_passes++) |
|
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|
5409 { |
|
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|
5410 |
| 0 | 5411 /* For this to work, we must rely on EVERYTHING |
| 5412 * else to unset the EOF if there is looping. | |
| 5413 * Remember, even Play() must do this | |
| 5414 */ | |
| 5415 | |
| 5416 /* If not EOF, then we are still playing. | |
| 5417 * Inside, we might find num_of_buffers < NUM...QUEUE_BUF.. | |
| 5418 * or buffers_process > 0 | |
| 5419 * in which case we queue up. | |
| 5420 * We also might find no buffers we need to fill, | |
| 5421 * in which case we just keep going | |
| 5422 */ | |
| 5423 if( ! ALmixer_Channel_List[i].almixer_data->eof) | |
| 5424 { | |
|
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|
5425 ALuint bytes_returned; |
| 0 | 5426 /* We have a priority. We first must assign |
| 5427 * unused buffers in reserve. If there is nothing | |
| 5428 * left, then we may unqueue buffers. We can't | |
| 5429 * do it the other way around because we will | |
| 5430 * lose the pointer to the unqueued buffer | |
| 5431 */ | |
| 5432 if(ALmixer_Channel_List[i].almixer_data->num_buffers_in_use | |
| 5433 < ALmixer_Channel_List[i].almixer_data->max_queue_buffers) | |
| 5434 { | |
| 1 | 5435 #if 0 |
| 0 | 5436 fprintf(stderr, "Getting more data in NOT_EOF and num_buffers_in_use (%d) < max_queue (%d)\n", |
| 5437 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use, | |
| 5438 ALmixer_Channel_List[i].almixer_data->max_queue_buffers); | |
| 1 | 5439 #endif |
| 0 | 5440 /* Going to add an unused packet. |
| 5441 * Grab next packet */ | |
| 5442 bytes_returned = GetMoreData( | |
| 5443 ALmixer_Channel_List[i].almixer_data, | |
| 5444 ALmixer_Channel_List[i].almixer_data->buffer[ | |
| 5445 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use] | |
| 5446 ); | |
| 5447 } | |
| 5448 /* For processed > 0 */ | |
| 5449 else if(buffers_processed > 0) | |
| 5450 { | |
| 5451 /* Unqueue only 1 buffer for now. | |
| 5452 * If there are more than one, | |
| 5453 * let the next Update pass deal with it | |
| 5454 * so we don't stall the program for too long. | |
| 5455 */ | |
| 5456 #if 0 | |
| 5457 fprintf(stderr, "About to Unqueue, Buffers processed = %d\n", buffers_processed); | |
| 5458 fprintf(stderr, "Buffers queued= %d\n", buffers_still_queued); | |
| 5459 fprintf(stderr, "Unqueuing a buffer\n"); | |
| 5460 #endif | |
| 5461 alSourceUnqueueBuffers( | |
| 5462 ALmixer_Channel_List[i].alsource, | |
| 5463 1, &unqueued_buffer_id | |
| 5464 ); | |
| 5465 if((error = alGetError()) != AL_NO_ERROR) | |
| 5466 { | |
| 5467 fprintf(stderr, "Error with unqueue: %s", | |
|
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|
5468 alGetString(error)); |
| 0 | 5469 ALmixer_SetError("Unqueue buffer failed: %s", |
|
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|
5470 alGetString(error) ); |
| 0 | 5471 error_flag--; |
| 5472 } | |
| 5473 /* | |
| 5474 fprintf(stderr, "Right after unqueue..."); | |
| 5475 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
| 5476 fprintf(stderr, "Getting more data for NOT_EOF, max_buffers filled\n"); | |
| 5477 */ | |
| 5478 /* Grab unqueued packet */ | |
| 5479 bytes_returned = GetMoreData( | |
| 5480 ALmixer_Channel_List[i].almixer_data, | |
| 5481 unqueued_buffer_id); | |
| 5482 } | |
| 5483 /* We are still streaming, but currently | |
| 5484 * don't need to fill any buffers */ | |
| 5485 else | |
| 5486 { | |
| 5487 /* Might want to check state */ | |
| 5488 /* In case the playback stopped, | |
|
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|
5489 * we need to resume |
|
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5490 * a.k.a. buffer underrun |
|
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|
5491 */ |
| 1 | 5492 #if 1 |
| 5493 /* Try not refetching the state here because I'm getting a duplicate | |
| 5494 buffer playback (hiccup) */ | |
| 0 | 5495 alGetSourcei( |
| 5496 ALmixer_Channel_List[i].alsource, | |
| 5497 AL_SOURCE_STATE, &state | |
| 5498 ); | |
| 1 | 5499 if((error = alGetError()) != AL_NO_ERROR) |
| 5500 { | |
| 5501 fprintf(stderr, "54bTesting error: %s\n", | |
|
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|
5502 alGetString(error)); |
| 1 | 5503 } |
| 5504 /* Get the number of buffers processed | |
| 5505 */ | |
| 5506 alGetSourcei( | |
| 5507 ALmixer_Channel_List[i].alsource, | |
| 5508 AL_BUFFERS_PROCESSED, | |
| 5509 &buffers_processed | |
| 5510 ); | |
| 5511 if((error = alGetError()) != AL_NO_ERROR) | |
| 5512 { | |
| 5513 fprintf(stderr, "54cError, Can't get buffers_processed: %s\n", | |
|
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|
5514 alGetString(error)); |
| 1 | 5515 } |
| 5516 #endif | |
| 0 | 5517 if(AL_STOPPED == state) |
| 5518 { | |
| 5519 /* Resuming in not eof, but nothing to buffer */ | |
| 1 | 5520 |
| 5521 /* Okay, here's another lately discovered problem: | |
| 5522 * I can't find it in the spec, but for at least some of the | |
| 5523 * implementations, if I call play on a stopped source that | |
| 5524 * has processed buffers, all those buffers get marked as unprocessed | |
| 5525 * on alSourcePlay. So if I had a queue of 25 with 24 of the buffers | |
| 5526 * processed, on resume, the earlier 24 buffers will get replayed, | |
| 5527 * causing a "hiccup" like sound in the playback. | |
| 5528 * To avoid this, I must unqueue all processed buffers before | |
| 5529 * calling play. But to complicate things, I need to worry about resyncing | |
| 5530 * the circular queue with this since I designed this thing | |
| 5531 * with some correlation between the two. However, I might | |
| 5532 * have already handled this, so I will try writing this code without | |
| 5533 * syncing for now. | |
| 5534 * There is currently an assumption that a buffer | |
| 5535 * was queued above so I actually have something | |
| 5536 * to play. | |
| 5537 */ | |
| 5538 ALint temp_count; | |
|
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5539 #if 0 |
|
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|
5540 fprintf(stderr, "STOPPED1, need to clear processed=%d, status is:\n", buffers_processed); |
| 1 | 5541 PrintQueueStatus(ALmixer_Channel_List[i].alsource); |
|
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|
5542 #endif |
| 1 | 5543 for(temp_count=0; temp_count<buffers_processed; temp_count++) |
| 5544 { | |
| 5545 alSourceUnqueueBuffers( | |
| 5546 ALmixer_Channel_List[i].alsource, | |
| 5547 1, &unqueued_buffer_id | |
| 5548 ); | |
| 5549 if((error = alGetError()) != AL_NO_ERROR) | |
| 5550 { | |
| 5551 fprintf(stderr, "55aTesting error: %s\n", | |
|
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|
5552 alGetString(error)); |
| 1 | 5553 error_flag--; |
| 5554 } | |
| 5555 } | |
|
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|
5556 #if 0 |
| 1 | 5557 fprintf(stderr, "After unqueue clear...:\n"); |
| 5558 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
|
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5559 #endif |
|
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|
5560 /* My assertion: We are STOPPED but not EOF. |
|
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5561 * This means we have a buffer underrun. |
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5562 * We just cleared out the unqueued buffers. |
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5563 * So we need to reset the mixer_data to reflect we have |
|
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5564 * no buffers in queue. |
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|
5565 * We need to GetMoreData and then queue up the data. |
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5566 * Then we need to resume playing. |
|
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|
5567 */ |
|
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|
5568 #if 0 |
|
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|
5569 int buffers_queued; |
|
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|
5570 alGetSourcei( |
|
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|
5571 ALmixer_Channel_List[i].alsource, |
|
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|
5572 AL_BUFFERS_QUEUED, |
|
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|
5573 &buffers_queued |
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|
5574 ); |
|
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|
5575 |
| 1 | 5576 if((error = alGetError()) != AL_NO_ERROR) |
| 5577 { | |
|
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|
5578 fprintf(stderr, "Error in PrintQueueStatus, Can't get buffers_queued: %s\n", |
|
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|
5579 alGetString(error)); |
|
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|
5580 } |
|
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|
5581 assert(buffers_queued == 0); |
|
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|
5582 fprintf(stderr, "buffer underrun: buffers_queued:%d\n", buffers_queued); |
|
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|
5583 #endif |
|
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5584 |
|
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|
5585 /* Reset the number of buffers in use to 0 */ |
|
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|
5586 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use = 0; |
|
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|
5587 |
|
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|
5588 /* Get more data and put it in the first buffer */ |
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|
5589 bytes_returned = GetMoreData( |
|
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|
5590 ALmixer_Channel_List[i].almixer_data, |
|
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|
5591 ALmixer_Channel_List[i].almixer_data->buffer[0] |
|
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|
5592 ); |
|
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|
5593 /* NOTE: We might want to look for EOF and handle it here. |
|
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|
5594 * Currently, I just let the next loop handle it which seems to be working. |
|
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|
5595 */ |
|
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|
5596 if(bytes_returned > 0) |
|
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|
5597 { |
|
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|
5598 /* Queue up the new data */ |
|
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|
5599 alSourceQueueBuffers( |
|
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|
5600 ALmixer_Channel_List[i].alsource, |
|
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|
5601 1, |
|
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|
5602 &ALmixer_Channel_List[i].almixer_data->buffer[0] |
|
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|
5603 ); |
|
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|
5604 if((error = alGetError()) != AL_NO_ERROR) |
|
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|
5605 { |
|
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|
5606 fprintf(stderr, "56e alSourceQueueBuffers error: %s\n", |
|
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|
5607 alGetString(error)); |
|
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|
5608 } |
|
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|
5609 /* Increment the number of buffers in use */ |
|
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|
5610 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use++; |
|
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|
5611 |
|
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|
5612 |
|
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|
5613 /* We need to empty and update the circular buffer queue if it is in use */ |
|
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|
5614 if(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue != NULL) |
|
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|
5615 { |
|
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|
5616 ALuint queue_ret_flag; |
|
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|
5617 CircularQueueUnsignedInt_Clear(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); |
|
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|
5618 queue_ret_flag = CircularQueueUnsignedInt_PushBack( |
|
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|
5619 ALmixer_Channel_List[i].almixer_data->circular_buffer_queue, |
|
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|
5620 ALmixer_Channel_List[i].almixer_data->buffer[0] |
|
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|
5621 ); |
|
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|
5622 if(0 == queue_ret_flag) |
|
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|
5623 { |
|
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|
5624 fprintf(stderr, "56fSerious internal error: CircularQueue could not push into queue.\n"); |
|
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|
5625 ALmixer_SetError("Serious internal error: CircularQueue failed to push into queue"); |
|
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|
5626 } |
|
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|
5627 } |
|
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|
5628 |
|
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|
5629 |
|
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|
5630 |
|
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|
5631 |
|
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|
5632 /* Resume playback from underrun */ |
|
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|
5633 alSourcePlay(ALmixer_Channel_List[i].alsource); |
|
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|
5634 if((error = alGetError()) != AL_NO_ERROR) |
|
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|
5635 { |
|
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|
5636 fprintf(stderr, "55Tbesting error: %s\n", |
|
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5637 alGetString(error)); |
|
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|
5638 } |
| 1 | 5639 } |
|
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|
5640 |
| 0 | 5641 } |
| 5642 /* Let's escape to the next loop. | |
| 5643 * All code below this point is for queuing up | |
| 5644 */ | |
| 5645 /* | |
| 1 | 5646 fprintf(stderr, "Entry: Nothing to do...continue\n\n"); |
| 5647 */ | |
| 0 | 5648 continue; |
| 5649 } | |
| 5650 /* We now know we have to fill an available | |
| 5651 * buffer. | |
| 5652 */ | |
| 5653 | |
| 5654 /* In the previous branch, we just grabbed more data. | |
| 5655 * Let's check it to make sure it's okay, | |
| 5656 * and then queue it up | |
| 5657 */ | |
|
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|
5658 /* This check doesn't work anymore because it is now ALuint */ |
| 0 | 5659 #if 0 |
| 5660 if(-1 == bytes_returned) | |
| 5661 { | |
| 5662 /* Problem occurred...not sure what to do */ | |
| 5663 /* Go to next loop? */ | |
| 5664 error_flag--; | |
| 5665 /* Set the eof flag to force a quit so | |
| 5666 * we don't get stuck in an infinite loop | |
| 5667 */ | |
| 5668 ALmixer_Channel_List[i].almixer_data->eof = 1; | |
| 5669 continue; | |
| 5670 } | |
| 5671 #endif | |
| 5672 /* This is a special case where we've run | |
| 5673 * out of data. We should check for loops | |
| 5674 * and get more data. If there is no loop, | |
| 5675 * then do nothing and wait for future | |
| 5676 * update passes to handle the EOF. | |
| 5677 * The advantage of handling the loop here | |
| 5678 * instead of waiting for play to stop is | |
| 5679 * that we should be able to keep the buffer | |
| 5680 * filled. | |
| 5681 */ | |
| 5682 #if 0 | |
| 5683 else if(0 == bytes_returned) | |
| 5684 #endif | |
| 5685 if(0 == bytes_returned) | |
| 5686 { | |
|
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diff
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|
5687 /* |
| 0 | 5688 fprintf(stderr, "We got 0 bytes from reading. Checking for loops\n"); |
|
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diff
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|
5689 */ |
| 0 | 5690 /* Check for loops */ |
| 5691 if( ALmixer_Channel_List[i].loops != 0 ) | |
| 5692 { | |
| 5693 /* We have to loop, so rewind | |
| 5694 * and fetch more data | |
| 5695 */ | |
|
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diff
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|
5696 /* |
| 0 | 5697 fprintf(stderr, "Rewinding data\n"); |
|
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diff
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|
5698 */ |
| 0 | 5699 if(0 == Sound_Rewind( |
| 5700 ALmixer_Channel_List[i].almixer_data->sample)) | |
| 5701 { | |
| 5702 fprintf(stderr, "Rewinding failed\n"); | |
| 5703 ALmixer_SetError( Sound_GetError() ); | |
| 5704 ALmixer_Channel_List[i].loops = 0; | |
| 5705 error_flag--; | |
| 5706 /* We'll continue on because we do have some valid data */ | |
| 5707 continue; | |
| 5708 } | |
| 5709 /* Remember to reset the data->eof flag */ | |
| 5710 ALmixer_Channel_List[i].almixer_data->eof = 0; | |
| 5711 if(ALmixer_Channel_List[i].loops > 0) | |
| 5712 { | |
| 5713 ALmixer_Channel_List[i].loops--; | |
| 5714 } | |
| 5715 /* Try grabbing another packet now. | |
| 5716 * Since we may have already unqueued a | |
| 5717 * buffer, we don't want to lose it. | |
| 5718 */ | |
| 5719 if(ALmixer_Channel_List[i].almixer_data->num_buffers_in_use | |
| 5720 < ALmixer_Channel_List[i].almixer_data->max_queue_buffers) | |
| 5721 { | |
|
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diff
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|
5722 /* |
| 0 | 5723 fprintf(stderr, "We got %d bytes from reading loop. Filling unused packet\n", bytes_returned); |
|
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diff
changeset
|
5724 */ |
| 0 | 5725 /* Grab next packet */ |
| 5726 bytes_returned = GetMoreData( | |
| 5727 ALmixer_Channel_List[i].almixer_data, | |
| 5728 ALmixer_Channel_List[i].almixer_data->buffer[ | |
| 5729 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use] | |
| 5730 ); | |
|
6
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Eric Wing <ewing . public |-at-| gmail . com>
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3
diff
changeset
|
5731 /* |
| 0 | 5732 fprintf(stderr, "We reread %d bytes into unused packet\n", bytes_returned); |
|
6
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3
diff
changeset
|
5733 */ |
| 0 | 5734 } |
| 5735 /* Refilling unqueued packet */ | |
| 5736 else | |
| 5737 { | |
|
6
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3
diff
changeset
|
5738 /* |
| 0 | 5739 fprintf(stderr, "We got %d bytes from reading loop. Filling unqueued packet\n", bytes_returned); |
|
6
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Eric Wing <ewing . public |-at-| gmail . com>
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diff
changeset
|
5740 */ |
| 0 | 5741 /* Grab next packet */ |
| 5742 bytes_returned = GetMoreData( | |
| 5743 ALmixer_Channel_List[i].almixer_data, | |
| 5744 unqueued_buffer_id); | |
|
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3
diff
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|
5745 /* |
| 0 | 5746 fprintf(stderr, "We reread %d bytes into unqueued packet\n", bytes_returned); |
|
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diff
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|
5747 */ |
| 0 | 5748 } |
| 5749 /* Another error check */ | |
| 5750 /* | |
| 5751 if(bytes_returned <= 0) | |
| 5752 */ | |
| 5753 if(0 == bytes_returned) | |
| 5754 { | |
| 5755 fprintf(stderr, "??????????ERROR\n"); | |
| 5756 ALmixer_SetError("Could not loop because after rewind, no data could be retrieved"); | |
| 5757 /* Problem occurred...not sure what to do */ | |
| 5758 /* Go to next loop? */ | |
| 5759 error_flag--; | |
| 5760 /* Set the eof flag to force a quit so | |
| 5761 * we don't get stuck in an infinite loop | |
| 5762 */ | |
| 5763 ALmixer_Channel_List[i].almixer_data->eof = 1; | |
| 5764 continue; | |
| 5765 } | |
| 5766 /* We made it to the end. We still need | |
| 5767 * to BufferData, so let this branch | |
| 5768 * fall into the next piece of | |
| 5769 * code below which will handle that | |
| 5770 */ | |
| 5771 | |
| 5772 | |
| 5773 } /* END loop check */ | |
| 5774 else | |
| 5775 { | |
| 5776 /* No more loops to do. | |
| 5777 * EOF flag should be set. | |
| 5778 * Just go to next loop and | |
| 5779 * let things be handled correctly | |
| 5780 * in future update calls | |
| 5781 */ | |
| 1 | 5782 /* |
| 0 | 5783 fprintf(stderr, "SHOULD BE EOF\n"); |
| 5784 | |
| 5785 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
| 1 | 5786 */ |
| 0 | 5787 continue; |
| 5788 } | |
| 5789 } /* END if bytes_returned == 0 */ | |
| 5790 /********* Possible trouble point. I might be queueing empty buffers on the mac. | |
| 5791 * This check doesn't say if the buffer is valid. Only the EOF assumption is a clue at this point | |
| 5792 */ | |
| 5793 /* Fall here */ | |
| 5794 /* Everything is normal. We aren't | |
| 5795 * at an EOF, but need to simply | |
| 5796 * queue more data. The data is already checked for good, | |
| 5797 * so queue it up */ | |
| 5798 if(ALmixer_Channel_List[i].almixer_data->num_buffers_in_use | |
| 5799 < ALmixer_Channel_List[i].almixer_data->max_queue_buffers) | |
| 5800 { | |
| 5801 /* Keep count of how many buffers we have | |
| 5802 * to queue so we can return the value | |
| 5803 */ | |
| 5804 retval++; | |
| 1 | 5805 /* |
| 0 | 5806 fprintf(stderr, "NOT_EOF???, about to Queue more data for num_buffers (%d) < max_queue (%d)\n", |
| 5807 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use, | |
| 5808 ALmixer_Channel_List[i].almixer_data->max_queue_buffers); | |
| 1 | 5809 */ |
| 0 | 5810 alSourceQueueBuffers( |
| 5811 ALmixer_Channel_List[i].alsource, | |
| 5812 1, | |
| 5813 &ALmixer_Channel_List[i].almixer_data->buffer[ | |
| 5814 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use] | |
| 5815 ); | |
| 5816 if((error = alGetError()) != AL_NO_ERROR) | |
| 5817 { | |
| 5818 fprintf(stderr, "56Testing error: %s\n", | |
|
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diff
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|
5819 alGetString(error)); |
| 0 | 5820 } |
| 5821 /* This is part of the hideous Nvidia workaround. In order to figure out | |
| 5822 * which buffer to show during callbacks (for things like | |
| 5823 * o-scopes), I must keep a copy of the buffers that are queued in my own | |
| 5824 * data structure. This code will be called only if | |
| 5825 * "access_data" was set, indicated by whether the queue is NULL. | |
| 5826 */ | |
| 5827 if(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue != NULL) | |
| 5828 { | |
|
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diff
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|
5829 ALuint queue_ret_flag; |
|
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1
diff
changeset
|
5830 // fprintf(stderr, "56d: CircularQueue_PushBack.\n"); |
| 0 | 5831 queue_ret_flag = CircularQueueUnsignedInt_PushBack( |
| 5832 ALmixer_Channel_List[i].almixer_data->circular_buffer_queue, | |
| 5833 ALmixer_Channel_List[i].almixer_data->buffer[ALmixer_Channel_List[i].almixer_data->num_buffers_in_use] | |
| 5834 ); | |
| 5835 if(0 == queue_ret_flag) | |
| 5836 { | |
| 5837 fprintf(stderr, "56aSerious internal error: CircularQueue could not push into queue.\n"); | |
| 5838 ALmixer_SetError("Serious internal error: CircularQueue failed to push into queue"); | |
| 5839 } | |
| 5840 /* | |
| 5841 else | |
| 5842 { | |
| 5843 CircularQueueUnsignedInt_Print(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); | |
| 5844 } | |
| 5845 */ | |
| 5846 } | |
| 5847 } | |
| 5848 /* for processed > 0 */ | |
| 5849 else | |
| 5850 { | |
| 5851 /* Keep count of how many buffers we have | |
| 5852 * to queue so we can return the value | |
| 5853 */ | |
| 5854 retval++; | |
| 5855 /* | |
| 5856 fprintf(stderr, "NOT_EOF, about to Queue more data for filled max_queue (%d)\n", | |
| 5857 ALmixer_Channel_List[i].almixer_data->max_queue_buffers); | |
| 5858 */ | |
| 5859 alSourceQueueBuffers( | |
| 5860 ALmixer_Channel_List[i].alsource, | |
| 5861 1, &unqueued_buffer_id); | |
| 5862 if((error = alGetError()) != AL_NO_ERROR) | |
| 5863 { | |
| 5864 ALmixer_SetError("Could not QueueBuffer: %s", | |
|
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1
diff
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|
5865 alGetString(error) ); |
| 0 | 5866 error_flag--; |
| 5867 continue; | |
| 5868 } | |
| 5869 /* This is part of the hideous Nvidia workaround. In order to figure out | |
| 5870 * which buffer to show during callbacks (for things like | |
| 5871 * o-scopes), I must keep a copy of the buffers that are queued in my own | |
| 5872 * data structure. This code will be called only if | |
| 5873 * "access_data" was set, indicated by whether the queue is NULL. | |
| 5874 */ | |
| 5875 if(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue != NULL) | |
| 5876 { | |
|
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diff
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|
5877 ALuint queue_ret_flag; |
|
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Overhaul prep for first public release.
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parents:
1
diff
changeset
|
5878 // fprintf(stderr, "56e: CircularQueue_PushBack.\n"); |
| 0 | 5879 queue_ret_flag = CircularQueueUnsignedInt_PushBack( |
| 5880 ALmixer_Channel_List[i].almixer_data->circular_buffer_queue, | |
| 5881 unqueued_buffer_id | |
| 5882 ); | |
| 5883 if(0 == queue_ret_flag) | |
| 5884 { | |
| 5885 fprintf(stderr, "56bSerious internal error: CircularQueue could not push into queue.\n"); | |
| 5886 ALmixer_SetError("Serious internal error: CircularQueue failed to push into queue"); | |
| 5887 } | |
|
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1
diff
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|
5888 #if 0 |
| 0 | 5889 else |
| 5890 { | |
| 5891 CircularQueueUnsignedInt_Print(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); | |
| 5892 } | |
|
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diff
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|
5893 #endif |
| 0 | 5894 } |
| 5895 } | |
| 5896 /* If we used an available buffer queue, | |
| 5897 * then we need to update the number of them in use | |
| 5898 */ | |
| 5899 if(ALmixer_Channel_List[i].almixer_data->num_buffers_in_use | |
| 5900 < ALmixer_Channel_List[i].almixer_data->max_queue_buffers) | |
| 5901 { | |
| 5902 /* Increment the number of buffers in use */ | |
| 5903 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use++; | |
| 5904 } | |
| 5905 /* Might want to check state */ | |
| 5906 /* In case the playback stopped, | |
| 5907 * we need to resume */ | |
| 1 | 5908 #if 1 |
| 5909 /* Try not refetching the state here because I'm getting a duplicate | |
| 5910 buffer playback (hiccup) */ | |
| 0 | 5911 alGetSourcei( |
| 5912 ALmixer_Channel_List[i].alsource, | |
| 5913 AL_SOURCE_STATE, &state | |
| 5914 ); | |
| 1 | 5915 if((error = alGetError()) != AL_NO_ERROR) |
| 5916 { | |
| 5917 fprintf(stderr, "57bTesting error: %s\n", | |
|
2
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Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
5918 alGetString(error)); |
| 1 | 5919 } |
| 5920 /* Get the number of buffers processed | |
| 5921 */ | |
| 5922 alGetSourcei( | |
| 5923 ALmixer_Channel_List[i].alsource, | |
| 5924 AL_BUFFERS_PROCESSED, | |
| 5925 &buffers_processed | |
| 5926 ); | |
| 5927 if((error = alGetError()) != AL_NO_ERROR) | |
| 5928 { | |
| 5929 fprintf(stderr, "57cError, Can't get buffers_processed: %s\n", | |
|
2
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diff
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|
5930 alGetString(error)); |
| 1 | 5931 } |
| 5932 #endif | |
| 0 | 5933 if(AL_STOPPED == state) |
| 5934 { | |
| 1 | 5935 /* |
| 0 | 5936 fprintf(stderr, "Resuming in not eof\n"); |
| 1 | 5937 */ |
| 5938 /* Okay, here's another lately discovered problem: | |
| 5939 * I can't find it in the spec, but for at least some of the | |
| 5940 * implementations, if I call play on a stopped source that | |
| 5941 * has processed buffers, all those buffers get marked as unprocessed | |
| 5942 * on alSourcePlay. So if I had a queue of 25 with 24 of the buffers | |
| 5943 * processed, on resume, the earlier 24 buffers will get replayed, | |
| 5944 * causing a "hiccup" like sound in the playback. | |
| 5945 * To avoid this, I must unqueue all processed buffers before | |
| 5946 * calling play. But to complicate things, I need to worry about resyncing | |
| 5947 * the circular queue with this since I designed this thing | |
| 5948 * with some correlation between the two. However, I might | |
| 5949 * have already handled this, so I will try writing this code without | |
| 5950 * syncing for now. | |
| 5951 * There is currently an assumption that a buffer | |
| 5952 * was queued above so I actually have something | |
| 5953 * to play. | |
| 5954 */ | |
| 5955 ALint temp_count; | |
| 5956 /* | |
| 5957 fprintf(stderr, "STOPPED2, need to clear processed, status is:\n"); | |
| 5958 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
| 5959 */ | |
| 5960 | |
| 5961 for(temp_count=0; temp_count<buffers_processed; temp_count++) | |
| 5962 { | |
| 5963 alSourceUnqueueBuffers( | |
| 5964 ALmixer_Channel_List[i].alsource, | |
| 5965 1, &unqueued_buffer_id | |
| 5966 ); | |
| 5967 if((error = alGetError()) != AL_NO_ERROR) | |
| 5968 { | |
| 5969 fprintf(stderr, "58aTesting error: %s\n", | |
|
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|
5970 alGetString(error)); |
| 1 | 5971 error_flag--; |
| 5972 } | |
| 5973 } | |
| 5974 /* | |
| 5975 fprintf(stderr, "After unqueue clear...:\n"); | |
| 5976 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
| 5977 */ | |
| 5978 | |
| 5979 alSourcePlay(ALmixer_Channel_List[i].alsource); | |
| 5980 if((error = alGetError()) != AL_NO_ERROR) | |
| 5981 { | |
| 5982 fprintf(stderr, "55Tbesting 8rror: %s\n", | |
|
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diff
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|
5983 alGetString(error)); |
| 1 | 5984 } |
| 0 | 5985 } |
| 5986 continue; | |
| 5987 } /* END if( ! eof) */ | |
| 5988 /* We have hit EOF in the SDL_Sound sample and there | |
| 5989 * are no more loops. However, there may still be | |
| 5990 * buffers in the OpenAL queue which still need to | |
| 5991 * be played out. The following body of code will | |
| 5992 * determine if play is still happening or | |
| 5993 * initiate the stop/cleanup sequenece. | |
| 5994 */ | |
| 5995 else | |
| 5996 { | |
| 5997 /* Let's continue to remove the used up | |
| 5998 * buffers as they come in. */ | |
| 5999 if(buffers_processed > 0) | |
| 6000 { | |
|
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|
6001 ALint temp_count; |
| 0 | 6002 /* Do as a for-loop because I don't want |
| 6003 * to have to create an array for the | |
| 6004 * unqueued_buffer_id's | |
| 6005 */ | |
| 6006 for(temp_count=0; temp_count<buffers_processed; temp_count++) | |
| 6007 { | |
|
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diff
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|
6008 /* |
| 0 | 6009 fprintf(stderr, "unqueuing remainder, %d\n", temp_count); |
|
6
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|
6010 */ |
| 0 | 6011 alSourceUnqueueBuffers( |
| 6012 ALmixer_Channel_List[i].alsource, | |
| 6013 1, &unqueued_buffer_id | |
| 6014 ); | |
| 6015 if((error = alGetError()) != AL_NO_ERROR) | |
| 6016 { | |
| 6017 fprintf(stderr, "59Testing error: %s\n", | |
|
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diff
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|
6018 alGetString(error)); |
| 0 | 6019 } |
| 6020 } | |
|
6
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3
diff
changeset
|
6021 /* |
| 0 | 6022 fprintf(stderr, "done unqueuing remainder for this loop, %d\n", temp_count); |
|
6
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|
6023 */ |
|
4b1048af7e55
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diff
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|
6024 |
| 0 | 6025 /* Need to update counts since we removed everything. |
| 6026 * If we don't update the counts here, we end up in the | |
| 6027 * "Shouldn't be here section, but maybe it's okay due to race conditions" | |
| 6028 */ | |
| 6029 alGetSourcei( | |
| 6030 ALmixer_Channel_List[i].alsource, | |
| 6031 AL_BUFFERS_QUEUED, &buffers_still_queued | |
| 6032 ); | |
| 6033 if((error = alGetError()) != AL_NO_ERROR) | |
| 6034 { | |
| 6035 fprintf(stderr, "5100Testing error: %s\n", | |
|
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diff
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|
6036 alGetString(error)); |
| 0 | 6037 } |
| 6038 /* Get the number of buffers processed | |
| 6039 * so we know if we need to refill | |
| 6040 */ | |
| 6041 alGetSourcei( | |
| 6042 ALmixer_Channel_List[i].alsource, | |
| 6043 AL_BUFFERS_PROCESSED, &buffers_processed | |
| 6044 ); | |
| 6045 if((error = alGetError()) != AL_NO_ERROR) | |
| 6046 { | |
| 6047 fprintf(stderr, "5200Testing error: %s\n", | |
|
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|
6048 alGetString(error)); |
| 0 | 6049 } |
| 6050 } | |
| 6051 | |
| 6052 | |
| 6053 /* Else if buffers_processed == 0 | |
| 6054 * and buffers_still_queued == 0. | |
| 6055 * then we check to see if the source | |
| 6056 * is still playing. Quit if stopped | |
| 6057 * We shouldn't need to worry about | |
| 6058 * looping because that should have | |
| 6059 * been handled above. | |
| 6060 */ | |
| 6061 if(0 == buffers_still_queued) | |
| 6062 { | |
| 6063 /* Make sure playback has stopped before | |
| 6064 * we shutdown. | |
| 6065 */ | |
| 6066 alGetSourcei( | |
| 6067 ALmixer_Channel_List[i].alsource, | |
| 6068 AL_SOURCE_STATE, &state | |
| 6069 ); | |
| 6070 if((error = alGetError()) != AL_NO_ERROR) | |
| 6071 { | |
| 6072 fprintf(stderr, "60Testing error: %s\n", | |
|
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|
6073 alGetString(error)); |
| 0 | 6074 } |
| 6075 if(AL_STOPPED == state) | |
| 6076 { | |
| 6077 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use = 0; | |
| 6078 /* Playback has ended. | |
| 6079 * Loop if necessary, or launch callback | |
| 6080 * and clear channel (or clear channel and | |
| 6081 * then launch callback?) | |
|
10
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|
6082 * Update: Need to do callback first because I reference the mixer_data and source |
| 0 | 6083 */ |
|
10
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|
6084 |
|
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|
6085 /* Launch callback */ |
|
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|
6086 Invoke_Channel_Done_Callback(i, AL_TRUE); |
|
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|
6087 |
| 0 | 6088 Clean_Channel(i); |
| 6089 /* Subtract counter */ | |
| 6090 Is_Playing_global--; | |
| 6091 | |
| 6092 | |
| 6093 /* We're done for this loop. | |
| 6094 * Go to next channel | |
| 6095 */ | |
| 6096 continue; | |
| 6097 } | |
| 6098 } /* End end-playback */ | |
| 6099 else | |
| 6100 { | |
| 6101 /* Need to run out buffer */ | |
| 6102 #if 1 | |
| 6103 /* Might want to check state */ | |
| 6104 /* In case the playback stopped, | |
| 6105 * we need to resume */ | |
| 6106 alGetSourcei( | |
| 6107 ALmixer_Channel_List[i].alsource, | |
| 6108 AL_SOURCE_STATE, &state | |
| 6109 ); | |
| 6110 if((error = alGetError()) != AL_NO_ERROR) | |
| 6111 { | |
| 6112 fprintf(stderr, "61Testing error: %s\n", | |
|
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6113 alGetString(error)); |
| 0 | 6114 } |
| 6115 if(AL_STOPPED == state) | |
| 6116 { | |
|
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|
6117 /* |
| 0 | 6118 fprintf(stderr, "Shouldn't be here. %d Buffers still in queue, but play stopped. This might be correct though because race conditions could have caused the STOP to happen right after our other tests...Checking queue status...\n", buffers_still_queued); |
|
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|
6119 */ |
| 1 | 6120 /* |
| 0 | 6121 PrintQueueStatus(ALmixer_Channel_List[i].alsource); |
| 1 | 6122 */ |
| 0 | 6123 /* Rather than force unqueuing the buffer, let's see if |
| 6124 * setting the buffer to none works (the OpenAL 1.0 | |
| 6125 * Reference Annotation suggests this should work). | |
| 6126 */ | |
| 6127 alSourcei(ALmixer_Channel_List[i].alsource, | |
| 6128 AL_BUFFER, AL_NONE); | |
| 6129 /* | |
| 6130 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
| 6131 */ | |
| 6132 /* This doesn't work because in some cases, I think | |
| 6133 * it causes the sound to be replayed | |
| 6134 */ | |
| 6135 /* | |
| 6136 fprintf(stderr, "Resuming in eof (trying to run out buffers\n"); | |
| 6137 alSourcePlay(ALmixer_Channel_List[i].alsource); | |
| 6138 */ | |
| 6139 } | |
| 6140 #endif | |
| 6141 } /* End trap section */ | |
| 6142 } /* End POST-EOF use-up buffer section */ | |
|
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|
6143 |
|
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|
6144 } /* END NEW number of queue buffers per pass */ |
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6145 |
| 0 | 6146 } /* END Streamed section */ |
| 6147 } /* END channel in use */ | |
| 6148 } /* END for-loop for each channel */ | |
| 6149 | |
| 6150 #ifdef ENABLE_ALMIXER_ALC_SYNC | |
| 6151 alcProcessContext(alcGetCurrentContext()); | |
| 6152 if((error = alGetError()) != AL_NO_ERROR) | |
| 6153 { | |
| 6154 fprintf(stderr, "62Testing error: %s\n", | |
|
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6155 alGetString(error)); |
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6156 } |
|
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6157 #endif |
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6158 |
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|
6159 #ifdef ENABLE_ALMIXER_THREADS |
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6160 SDL_UnlockMutex(s_simpleLock); |
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6161 #endif |
| 0 | 6162 /* Return the number of errors */ |
| 6163 if(error_flag < 0) | |
| 6164 { | |
| 6165 return error_flag; | |
| 6166 } | |
| 6167 /* Return the number of buffers that were queued */ | |
| 6168 return retval; | |
| 6169 } | |
| 6170 | |
| 6171 #ifdef ENABLE_PARANOID_SIGNEDNESS_CHECK | |
| 6172 /* This is only here so we can call SDL_OpenAudio() */ | |
|
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6173 static void my_dummy_audio_callback(void* userdata, ALbyte* stream, int len) |
| 0 | 6174 { |
| 6175 } | |
| 6176 #endif | |
| 6177 | |
| 6178 | |
| 6179 | |
| 6180 | |
| 6181 #ifdef ENABLE_ALMIXER_THREADS | |
| 6182 /* We might need threads. We | |
| 6183 * must constantly poll OpenAL to find out | |
| 6184 * if sound is being streamed, if play has | |
| 6185 * ended, etc. Without threads, this must | |
| 6186 * be explicitly done by the user. | |
| 6187 * We could try to do it for them if we | |
| 6188 * finish the threads. | |
| 6189 */ | |
| 6190 | |
| 6191 static int Stream_Data_Thread_Callback(void* data) | |
| 6192 { | |
|
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6193 ALint retval; |
| 0 | 6194 |
| 6195 while(ALmixer_Initialized) | |
| 6196 { | |
| 6197 retval = Update_ALmixer(data); | |
| 6198 /* 0 means that nothing needed updating and | |
| 6199 * the function returned quickly | |
| 6200 */ | |
| 6201 if(0 == retval) | |
| 6202 { | |
| 6203 /* Let's be nice and make the thread sleep since | |
| 6204 * little work was done in update | |
| 6205 */ | |
| 6206 /* Make sure times are multiples of 10 | |
| 6207 * for optimal performance and accuracy in Linux | |
| 6208 */ | |
|
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6209 ALmixer_Delay(10); |
| 0 | 6210 } |
| 6211 else | |
| 6212 { | |
| 6213 /* should I also be sleeping/yielding here? */ | |
|
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6214 ALmixer_Delay(0); |
| 0 | 6215 } |
| 6216 } | |
|
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6217 /* |
| 0 | 6218 fprintf(stderr, "Thread is closing\n"); |
|
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6219 */ |
| 0 | 6220 return 0; |
| 6221 } | |
| 6222 #endif /* End of ENABLE_ALMIXER_THREADS */ | |
| 6223 | |
| 6224 | |
|
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6225 /* SDL/SDL_mixer returns -1 on error and 0 on success. |
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6226 * I actually prefer false/true conventions (SDL_Sound/OpenAL/GL) |
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6227 * so SDL_mixer porting people beware. |
| 0 | 6228 * Warning: SDL_QuitSubSystem(SDL_INIT_AUDIO) is called which |
| 6229 * means the SDL audio system will be disabled. It will not | |
| 6230 * be restored (in case SDL is not actually being used) so | |
| 6231 * the user will need to restart it if they need it after | |
| 6232 * OpenAL shuts down. | |
| 6233 */ | |
|
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- Added Seek APIs
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|
6234 ALboolean ALmixer_Init(ALuint frequency, ALuint num_sources, ALuint refresh) |
| 0 | 6235 { |
| 6236 ALCdevice* dev; | |
| 6237 ALCcontext* context; | |
|
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6238 ALint i; |
| 0 | 6239 ALenum error; |
| 6240 ALuint* source; | |
| 6241 | |
| 6242 #ifdef USING_LOKI_AL_DIST | |
| 6243 /* The Loki dist requires that I set both the | |
| 6244 * device and context frequency values separately | |
| 6245 */ | |
| 6246 /* Hope this won't overflow */ | |
| 6247 char device_string[256]; | |
| 6248 #endif | |
| 6249 | |
| 6250 /* (Venting frustration) Damn it! Nobody bothered | |
| 6251 * documenting how you're supposed to use an attribute | |
| 6252 * list. In fact, the not even the Loki test program | |
| 6253 * writers seem to know because they use it inconsistently. | |
| 6254 * For example, how do you terminate that attribute list? | |
| 6255 * The Loki test code does it 3 different ways. They | |
| 6256 * set the last value to 0, or they set it to ALC_INVALID, | |
| 6257 * or they set two final values: ALC_INVALID, 0 | |
| 6258 * In Loki, 0 and ALC_INVALID happen to be the same, | |
| 6259 * but with Creative Labs ALC_INVALID is -1. | |
| 6260 * So something's going to break. Loki's source | |
| 6261 * code says to terminate with ALC_INVALID. But I | |
| 6262 * don't know if that's really true, or it happens | |
| 6263 * to be a coinicidence because it's defined to 0. | |
| 6264 * Creative provides no source code, so I can't look at how | |
| 6265 * they terminate it. | |
| 6266 * So this is really, really ticking me off... | |
| 6267 * For now, I'm going to use ALC_INVALID. | |
| 6268 * (Update...after further review of the API spec, | |
| 6269 * it seems that a NULL terminated string is the correct | |
| 6270 * termination value to use, so 0 it is.) | |
| 6271 */ | |
| 6272 #if 0 | |
| 6273 ALint attrlist[] = { | |
| 6274 ALC_FREQUENCY, ALMIXER_DEFAULT_FREQUENCY, | |
| 6275 /* Don't know anything about these values. | |
| 6276 * Trust defaults? */ | |
| 6277 /* Supposed to be the refresh rate in Hz. | |
| 6278 * I think 15-120 are supposed to be good | |
| 6279 * values. Though I haven't gotten any effect except | |
| 6280 * for one strange instance on a Mac. But it was | |
| 6281 * unrepeatable. | |
| 6282 */ | |
| 6283 #if 0 | |
| 6284 ALC_REFRESH, 15, | |
| 6285 #endif | |
| 6286 /* Sync requires a alcProcessContext() call | |
| 6287 * for every cycle. By default, this is | |
| 6288 * not used and the value is AL_FALSE | |
| 6289 * because it will probably perform | |
| 6290 * pretty badly for me. | |
| 6291 */ | |
| 6292 #ifdef ENABLE_ALMIXER_ALC_SYNC | |
| 6293 ALC_SYNC, AL_TRUE, | |
| 6294 #else | |
| 6295 ALC_SYNC, AL_FALSE, | |
| 6296 #endif | |
| 6297 /* Looking at the API spec, it implies | |
| 6298 * that the list be a NULL terminated string | |
| 6299 * so it's probably not safe to use ALC_INVALID | |
| 6300 */ | |
| 6301 /* | |
| 6302 ALC_INVALID }; | |
| 6303 */ | |
| 6304 '\0'}; | |
| 6305 #endif | |
| 6306 /* Redo: I'm going to allow ALC_REFRESH to be set. | |
| 6307 * However, if no value is specified, I don't | |
| 6308 * want it in the list so I can get the OpenAL defaults | |
| 6309 */ | |
| 6310 ALint attrlist[7]; | |
|
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|
6311 ALsizei current_attrlist_index = 0; |
| 0 | 6312 |
| 6313 #ifdef ENABLE_PARANOID_SIGNEDNESS_CHECK | |
| 6314 /* More problems: I'm getting bit by endian/signedness issues on | |
| 6315 * different platforms. I can find the endianess easily enough, | |
| 6316 * but I don't know how to determine what the correct signedness | |
| 6317 * is (if such a thing exists). I do know that if I try using | |
| 6318 * unsigned on OSX with an originally signed sample, I get | |
| 6319 * distortion. However, I don't have any native unsigned samples | |
| 6320 * to test. But I'm assuming that the platform must be in the | |
| 6321 * correct signedness no matter what. | |
| 6322 * I can either assume everybody is signed, or I can try to | |
| 6323 * determine the value. If I try to determine the values, | |
| 6324 * I think my only ability to figure it out will be to open | |
| 6325 * SDL_Audio, and read what the obtained settings were. | |
| 6326 * Then shutdown everything. However, I don't even know how | |
| 6327 * reliable this is. | |
| 6328 * Update: I think I resolved the issues...forgot to update | |
| 6329 * these comments when it happened. I should check the revision control | |
| 6330 * log... Anyway, I think the issue was partly related to me not | |
| 6331 * doing something correctly with the AudioInfo or some kind | |
| 6332 * of stupid endian bug in my code, and weirdness ensued. Looking at the | |
| 6333 * revision control, I think I might have assumed that SDL_Sound would | |
| 6334 * do the right thing with a NULL AudioInfo, but I was incorrect, | |
| 6335 * and had to fill one out myself. | |
| 6336 */ | |
| 6337 SDL_AudioSpec desired; | |
| 6338 SDL_AudioSpec obtained; | |
| 6339 #endif | |
| 6340 | |
| 6341 | |
| 6342 /* Make sure ALmixer isn't already initialized */ | |
| 6343 if(ALmixer_Initialized) | |
| 6344 { | |
|
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|
6345 return AL_FALSE; |
| 0 | 6346 } |
| 6347 | |
|
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6348 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
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6349 ALmixer_InitTime(); |
|
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|
6350 |
|
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|
6351 /* Note: The pool may have been created on previous Init's */ |
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|
6352 /* I leave the pool allocated allocated in case the user wants |
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6353 * to read the pool in case of a failure (such as in this function). |
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6354 * This is not actually a leak. |
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|
6355 */ |
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|
6356 if(NULL == s_ALmixerErrorPool) |
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6357 { |
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|
6358 s_ALmixerErrorPool = TError_CreateErrorPool(); |
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6359 } |
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|
6360 if(NULL == s_ALmixerErrorPool) |
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6361 { |
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|
6362 return AL_FALSE; |
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|
6363 } |
|
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6364 /* |
|
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|
6365 fprintf(stderr, "tError Test0\n"); |
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|
6366 ALmixer_SetError("Initing (and testing SetError)"); |
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|
6367 fprintf(stderr, "tError Test1: %s\n", ALmixer_GetError()); |
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|
6368 fprintf(stderr, "tError Test2: %s\n", ALmixer_GetError()); |
|
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|
6369 */ |
|
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|
6370 #endif |
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|
6371 |
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|
6372 |
| 0 | 6373 /* Set the defaults */ |
|
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|
6374 /* |
| 0 | 6375 attrlist[0] = ALC_FREQUENCY; |
| 6376 attrlist[1] = ALMIXER_DEFAULT_FREQUENCY; | |
| 6377 attrlist[2] = ALC_SYNC; | |
| 6378 #ifdef ENABLE_ALMIXER_ALC_SYNC | |
| 6379 attrlist[3] = ALC_TRUE; | |
| 6380 #else | |
| 6381 attrlist[3] = ALC_FALSE; | |
| 6382 #endif | |
|
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|
6383 */ |
| 0 | 6384 /* Set frequency value if it is not 0 */ |
| 6385 if(0 != frequency) | |
| 6386 { | |
|
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|
6387 attrlist[current_attrlist_index] = ALC_FREQUENCY; |
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6388 current_attrlist_index++; |
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|
6389 attrlist[current_attrlist_index] = (ALint)frequency; |
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|
6390 current_attrlist_index++; |
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6391 } |
|
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6392 |
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|
6393 #ifdef ENABLE_ALMIXER_ALC_SYNC |
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6394 attrlist[current_attrlist_index] = ALC_SYNC; |
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6395 current_attrlist_index++; |
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6396 attrlist[current_attrlist_index] = ALC_TRUE; |
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6397 current_attrlist_index++; |
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|
6398 #endif |
| 0 | 6399 |
| 6400 /* If the user specifies a refresh value, | |
| 6401 * make room for it | |
| 6402 */ | |
| 6403 if(0 != refresh) | |
| 6404 { | |
|
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|
6405 attrlist[current_attrlist_index] = (ALint)ALC_REFRESH; |
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|
6406 current_attrlist_index++; |
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|
6407 attrlist[current_attrlist_index] = refresh; |
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6408 current_attrlist_index++; |
| 0 | 6409 } |
| 6410 | |
|
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|
6411 /* End attribute list */ |
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|
6412 attrlist[current_attrlist_index] = '\0'; |
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6413 |
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|
6414 |
| 0 | 6415 /* Initialize SDL_Sound */ |
| 6416 if(! Sound_Init() ) | |
| 6417 { | |
| 6418 ALmixer_SetError(Sound_GetError()); | |
|
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|
6419 return AL_FALSE; |
| 0 | 6420 } |
| 6421 #ifdef ENABLE_PARANOID_SIGNEDNESS_CHECK | |
| 6422 /* Here is the paranoid check that opens | |
| 6423 * SDL audio in an attempt to find the correct | |
| 6424 * system values. | |
| 6425 */ | |
| 6426 /* Doesn't have to be the actual value I think | |
| 6427 * (as long as it doesn't influence format, in | |
| 6428 * which case I'm probably screwed anyway because OpenAL | |
| 6429 * may easily choose to do something else). | |
| 6430 */ | |
| 6431 desired.freq = 44100; | |
| 6432 desired.channels = 2; | |
| 6433 desired.format = AUDIO_S16SYS; | |
| 6434 desired.callback = my_dummy_audio_callback; | |
| 6435 if(SDL_OpenAudio(&desired, &obtained) >= 0) | |
| 6436 { | |
| 6437 SIGN_TYPE_16BIT_FORMAT = obtained.format; | |
| 6438 /* Now to get really paranoid, we should probably | |
| 6439 * also assume that the 8bit format is also the | |
| 6440 * same sign type and set that value | |
| 6441 */ | |
| 6442 if(AUDIO_S16SYS == obtained.format) | |
| 6443 { | |
| 6444 SIGN_TYPE_8BIT_FORMAT = AUDIO_S8; | |
| 6445 } | |
| 6446 /* Should be AUDIO_U16SYS */ | |
| 6447 else | |
| 6448 { | |
| 6449 SIGN_TYPE_8BIT_FORMAT = AUDIO_U8; | |
| 6450 } | |
| 6451 SDL_CloseAudio(); | |
| 6452 } | |
| 6453 else | |
| 6454 { | |
| 6455 /* Well, I guess I'm in trouble. I guess it's my best guess | |
| 6456 */ | |
| 6457 SIGN_TYPE_16_BIT_FORMAT = AUDIO_S16SYS; | |
| 6458 SIGN_TYPE_8_BIT_FORMAT = AUDIO_S8; | |
| 6459 } | |
| 6460 #endif | |
|
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6461 |
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6462 #ifndef ALMIXER_COMPILE_WITHOUT_SDL |
| 0 | 6463 /* Weirdness: It seems that SDL_Init(SDL_INIT_AUDIO) |
| 6464 * causes OpenAL and SMPEG to conflict. For some reason | |
| 6465 * if SDL_Init on audio is active, then all the SMPEG | |
| 6466 * decoded sound comes out silent. Unfortunately, | |
| 6467 * Sound_Init() invokes SDL_Init on audio. I'm | |
| 6468 * not sure why it actually needs it... | |
| 6469 * But we'll attempt to disable it here after the | |
| 6470 * SDL_Sound::Init call and hope it doesn't break SDL_Sound. | |
| 6471 */ | |
| 6472 SDL_QuitSubSystem(SDL_INIT_AUDIO); | |
|
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|
6473 #endif |
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6474 |
| 0 | 6475 /* I'm told NULL will call the default string |
| 6476 * and hopefully do the right thing for each platform | |
| 6477 */ | |
| 6478 /* | |
| 6479 dev = alcOpenDevice( NULL ); | |
| 6480 */ | |
| 6481 /* Now I'm told I need to set both the device and context | |
| 6482 * to have the same sampling rate, so I must pass a string | |
| 6483 * to OpenDevice(). I don't know how portable these strings are. | |
| 6484 * I don't even know if the format for strings is | |
| 6485 * compatible | |
| 6486 * From the testattrib.c in the Loki test section | |
| 6487 * dev = alcOpenDevice( (const ALubyte *) "'((sampling-rate 22050))" ); | |
| 6488 */ | |
| 6489 | |
| 6490 #ifdef USING_LOKI_AL_DIST | |
| 6491 sprintf(device_string, "'((sampling-rate %d))", attrlist[1]); | |
| 6492 dev = alcOpenDevice( (const ALubyte *) device_string ); | |
| 6493 #else | |
| 6494 dev = alcOpenDevice( NULL ); | |
| 6495 #endif | |
| 6496 if(NULL == dev) | |
| 6497 { | |
| 6498 ALmixer_SetError("Cannot open sound device for OpenAL"); | |
|
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6499 return AL_FALSE; |
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6500 } |
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|
6501 |
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6502 #ifdef __APPLE__ |
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6503 /* The ALC_FREQUENCY attribute is ignored with Apple's implementation. */ |
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6504 /* This extension must be called before the context is created. */ |
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6505 if(0 != frequency) |
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6506 { |
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|
6507 Internal_alcMacOSXMixerOutputRate((ALdouble)frequency); |
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6508 } |
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|
6509 ALmixer_Frequency_global = (ALuint)Internal_alcMacOSXGetMixerOutputRate(); |
|
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|
6510 /* |
|
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|
6511 fprintf(stderr, "Internal_alcMacOSXMixerOutputRate is: %lf", Internal_alcMacOSXGetMixerOutputRate()); |
|
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6512 */ |
|
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6513 #endif |
| 0 | 6514 |
| 6515 context = alcCreateContext(dev, attrlist); | |
| 6516 if(NULL == context) | |
| 6517 { | |
| 6518 ALmixer_SetError("Cannot create a context OpenAL"); | |
| 6519 alcCloseDevice(dev); | |
|
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6520 return AL_FALSE; |
| 0 | 6521 } |
| 6522 | |
| 6523 | |
| 6524 /* Hmmm, OSX is returning 1 on alcMakeContextCurrent, | |
| 6525 * but ALC_NO_ERROR is defined to ALC_FALSE. | |
| 6526 * According to Garin Hiebert, this is actually an inconsistency | |
| 6527 * in the Loki version. The function should return a boolean. | |
| 6528 * instead of ALC_NO_ERROR. Garin suggested I check via | |
| 6529 * alcGetError(). | |
| 6530 */ | |
| 6531 /* clear the error */ | |
| 6532 alcGetError(dev); | |
| 6533 alcMakeContextCurrent(context); | |
| 6534 | |
| 6535 error = alcGetError(dev); | |
| 6536 if( (ALC_NO_ERROR != error) ) | |
| 6537 { | |
| 6538 ALmixer_SetError("Could not MakeContextCurrent"); | |
| 6539 alcDestroyContext(context); | |
| 6540 alcCloseDevice(dev); | |
|
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6541 return AL_FALSE; |
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6542 } |
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|
6543 |
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|
6544 /* It looks like OpenAL won't let us ask it what |
|
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|
6545 * the set frequency is, so we need to save our |
|
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6546 * own copy. Yuck. |
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|
6547 * Update: J. Valenzuela just updated the Loki |
|
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|
6548 * dist (2003/01/02) to handle this. |
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6549 * The demo is in testattrib.c. |
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6550 */ |
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|
6551 /* |
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|
6552 ALmixer_Frequency_global = frequency; |
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6553 */ |
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|
6554 #ifndef __APPLE__ |
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|
6555 alcGetIntegerv(dev, ALC_FREQUENCY, 1, &ALmixer_Frequency_global); |
|
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6556 /* |
|
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|
6557 fprintf(stderr, "alcGetIntegerv ALC_FREQUENCY is: %d", ALmixer_Frequency_global); |
|
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6558 */ |
|
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|
6559 #endif |
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6560 |
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6561 |
| 0 | 6562 #if 0 |
| 6563 /* OSX is failing on alcMakeContextCurrent(). Try checking it first? */ | |
| 6564 if(alcGetCurrentContext() != context) | |
| 6565 { | |
| 6566 /* Hmmm, OSX is returning 1 on alcMakeContextCurrent, | |
| 6567 * but ALC_NO_ERROR is defined to ALC_FALSE. | |
| 6568 * I think this is a bug in the OpenAL implementation. | |
| 6569 */ | |
| 6570 fprintf(stderr,"alcMakeContextCurrent returns %d\n", alcMakeContextCurrent(context)); | |
| 6571 | |
| 6572 fprintf(stderr, "Making context current\n"); | |
| 6573 #ifndef __APPLE__ | |
| 6574 if(alcMakeContextCurrent(context) != ALC_NO_ERROR) | |
| 6575 #else | |
| 6576 if(!alcMakeContextCurrent(context)) | |
| 6577 #endif | |
| 6578 { | |
| 6579 ALmixer_SetError("Could not MakeContextCurrent"); | |
| 6580 alcDestroyContext(context); | |
| 6581 alcCloseDevice(dev); | |
|
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|
6582 return AL_FALSE; |
| 0 | 6583 } |
| 6584 } | |
| 6585 #endif | |
| 6586 | |
| 6587 | |
| 6588 /* #endif */ | |
| 6589 /* Saw this in the README with the OS X OpenAL distribution. | |
| 6590 * It looked interesting and simple, so I thought I might | |
| 6591 * try it out. | |
| 6592 * ***** ALC_CONVERT_DATA_UPON_LOADING | |
| 6593 * This extension allows the caller to tell OpenAL to preconvert to the native Core | |
| 6594 * Audio format, the audio data passed to the | |
| 6595 * library with the alBufferData() call. Preconverting the audio data, reduces CPU | |
| 6596 * usage by removing an audio data conversion | |
| 6597 * (per source) at render timem at the expense of a larger memory footprint. | |
| 6598 * | |
| 6599 * This feature is toggled on/off by using the alDisable() & alEnable() APIs. This | |
| 6600 * setting will be applied to all subsequent | |
| 6601 * calls to alBufferData(). | |
|
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6602 * |
|
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|
6603 * Update: Some people keep reporting that they see the enable fail on Mac, but I can't reproduce it myself. |
|
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6604 * Rather than deal with it right now, I think I am going to make it an opt-in thing. |
| 0 | 6605 */ |
|
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6606 #if defined(__APPLE__) && defined(ALMIXER_USE_OSX_CONVERT_DATA_UPON_LOADING) |
|
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|
6607 /* |
|
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|
6608 iPhone is getting this enum, but is failing on the enable, so I guess I'll define it out. |
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6609 */ |
|
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6610 #if (TARGET_OS_IPHONE == 1) || (TARGET_IPHONE_SIMULATOR == 1) |
|
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6611 |
|
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|
6612 #else |
|
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|
6613 /* iOS reports this enum exists, but loading it always fails, so make it Mac only. */ |
|
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6614 ALenum convert_data_enum = alcGetEnumValue(dev, "ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING"); |
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6615 /* |
|
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|
6616 fprintf(stderr, "ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING=0x%x", convert_data_enum); |
|
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|
6617 */ |
|
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|
6618 if(0 != convert_data_enum) |
|
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6619 { |
|
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|
6620 alEnable(convert_data_enum); |
|
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6621 } |
|
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|
6622 if( (AL_NO_ERROR != alGetError()) ) |
|
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6623 { |
|
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|
6624 fprintf(stderr, "ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING attempted but failed"); |
|
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6625 ALmixer_SetError("ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING attempted but failed"); |
|
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6626 } |
|
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|
6627 #endif |
|
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6628 |
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|
6629 #endif /* __APPLE__ */ |
| 0 | 6630 |
| 6631 | |
| 6632 | |
| 6633 | |
| 6634 ALmixer_Initialized = 1; | |
| 6635 | |
|
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|
6636 if(num_sources == 0) |
| 0 | 6637 { |
| 6638 Number_of_Channels_global = ALMIXER_DEFAULT_NUM_CHANNELS; | |
| 6639 } | |
| 6640 else | |
| 6641 { | |
|
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|
6642 /* probably should make Number_of_Channels_global an ALuint, but need to cast which_channel all the time */ |
|
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|
6643 Number_of_Channels_global = (ALint)num_sources; |
| 0 | 6644 } |
| 6645 Number_of_Reserve_Channels_global = 0; | |
| 6646 Is_Playing_global = 0; | |
| 6647 /* Set to Null in case system quit and was reinitialized */ | |
| 6648 Channel_Done_Callback = NULL; | |
| 6649 Channel_Done_Callback_Userdata = NULL; | |
| 6650 Channel_Data_Callback = NULL; | |
| 1 | 6651 Channel_Data_Callback_Userdata = NULL; |
| 0 | 6652 |
|
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|
6653 /* Allocate memory for linked list of ALmixerData. */ |
|
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|
6654 s_listOfALmixerData = LinkedList_Create(); |
|
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|
6655 if(NULL == s_listOfALmixerData) |
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|
6656 { |
|
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|
6657 ALmixer_SetError("Couldn't create linked list"); |
|
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|
6658 alcDestroyContext(context); |
|
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|
6659 alcCloseDevice(dev); |
|
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|
6660 ALmixer_Initialized = 0; |
|
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|
6661 Number_of_Channels_global = 0; |
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6662 return AL_FALSE; |
|
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|
6663 } |
|
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|
6664 |
| 0 | 6665 /* Allocate memory for the list of channels */ |
| 6666 ALmixer_Channel_List = (struct ALmixer_Channel*) malloc(Number_of_Channels_global * sizeof(struct ALmixer_Channel)); | |
| 6667 if(NULL == ALmixer_Channel_List) | |
| 6668 { | |
| 6669 ALmixer_SetError("Out of Memory for Channel List"); | |
|
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|
6670 LinkedList_Free(s_listOfALmixerData); |
| 0 | 6671 alcDestroyContext(context); |
| 6672 alcCloseDevice(dev); | |
| 6673 ALmixer_Initialized = 0; | |
| 6674 Number_of_Channels_global = 0; | |
|
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|
6675 return AL_FALSE; |
| 0 | 6676 } |
| 6677 | |
| 6678 /* Allocate memory for the list of sources that map to the channels */ | |
| 6679 Source_Map_List = (Source_Map*) malloc(Number_of_Channels_global * sizeof(Source_Map)); | |
| 6680 if(NULL == Source_Map_List) | |
| 6681 { | |
| 6682 ALmixer_SetError("Out of Memory for Source Map List"); | |
| 6683 free(ALmixer_Channel_List); | |
|
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|
6684 LinkedList_Free(s_listOfALmixerData); |
| 0 | 6685 alcDestroyContext(context); |
| 6686 alcCloseDevice(dev); | |
| 6687 ALmixer_Initialized = 0; | |
| 6688 Number_of_Channels_global = 0; | |
|
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|
6689 return AL_FALSE; |
| 0 | 6690 } |
| 6691 | |
| 6692 /* Create array that will hold the sources */ | |
| 6693 source = (ALuint*)malloc(Number_of_Channels_global * sizeof(ALuint)); | |
| 6694 if(NULL == source) | |
| 6695 { | |
| 6696 ALmixer_SetError("Out of Memory for sources"); | |
| 6697 free(Source_Map_List); | |
| 6698 free(ALmixer_Channel_List); | |
|
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|
6699 LinkedList_Free(s_listOfALmixerData); |
| 0 | 6700 alcDestroyContext(context); |
| 6701 alcCloseDevice(dev); | |
| 6702 ALmixer_Initialized = 0; | |
| 6703 Number_of_Channels_global = 0; | |
|
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|
6704 return AL_FALSE; |
| 0 | 6705 } |
| 6706 | |
| 6707 /* Clear the error state */ | |
| 6708 alGetError(); | |
| 6709 /* Generate the OpenAL sources */ | |
| 6710 alGenSources(Number_of_Channels_global, source); | |
| 6711 if( (error=alGetError()) != AL_NO_ERROR) | |
| 6712 { | |
|
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|
6713 ALmixer_SetError("Couldn't generate sources: %s\n", alGetString(error)); |
| 0 | 6714 free(ALmixer_Channel_List); |
| 6715 free(Source_Map_List); | |
|
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|
6716 LinkedList_Free(s_listOfALmixerData); |
| 0 | 6717 alcDestroyContext(context); |
| 6718 alcCloseDevice(dev); | |
| 6719 ALmixer_Initialized = 0; | |
| 6720 Number_of_Channels_global = 0; | |
|
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|
6721 return AL_FALSE; |
| 0 | 6722 } |
| 6723 | |
| 6724 /* Initialize each channel and associate one source to one channel */ | |
| 6725 for(i=0; i<Number_of_Channels_global; i++) | |
| 6726 { | |
| 6727 if(0 == source[i]) | |
| 6728 { | |
| 6729 fprintf(stderr, "SDL_ALmixer serious problem. This OpenAL implementation allowed 0 to be a valid source id which is in conflict with assumptions made in this library.\n"); | |
| 6730 } | |
| 6731 | |
| 6732 Init_Channel(i); | |
| 6733 /* Keeping the source allocation out of the Init function | |
| 6734 * in case I want to reuse the Init | |
| 6735 * function for resetting data | |
| 6736 */ | |
| 6737 ALmixer_Channel_List[i].alsource = source[i]; | |
| 6738 /* Now also keep a copy of the source to channel mapping | |
| 6739 * in case we need to look up a channel from the source | |
| 6740 * instead of a source from a channel | |
| 6741 */ | |
| 6742 Source_Map_List[i].source = source[i]; | |
| 6743 Source_Map_List[i].channel = i; | |
| 6744 /* Clean the channel because there are some things that need to | |
| 6745 * be done that can't happen until the source is set | |
| 6746 */ | |
| 6747 Clean_Channel(i); | |
| 6748 } | |
| 6749 | |
| 6750 /* The Source_Map_List must be sorted by source for binary searches | |
| 6751 */ | |
| 6752 qsort(Source_Map_List, Number_of_Channels_global, sizeof(Source_Map), Compare_Source_Map); | |
| 6753 | |
|
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|
6754 /* |
|
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|
6755 ALmixer_OutputDecoders(); |
|
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|
6756 */ |
|
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|
6757 |
|
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|
6758 |
|
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|
6759 |
|
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|
6760 #ifdef ENABLE_ALMIXER_THREADS |
|
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|
6761 s_simpleLock = SDL_CreateMutex(); |
|
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|
6762 if(NULL == s_simpleLock) |
| 0 | 6763 { |
| 6764 /* SDL sets the error message already? */ | |
| 6765 free(source); | |
| 6766 free(ALmixer_Channel_List); | |
| 6767 free(Source_Map_List); | |
|
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|
6768 LinkedList_Free(s_listOfALmixerData); |
| 0 | 6769 alcDestroyContext(context); |
| 6770 alcCloseDevice(dev); | |
| 6771 ALmixer_Initialized = 0; | |
| 6772 Number_of_Channels_global = 0; | |
|
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|
6773 return AL_FALSE; |
| 0 | 6774 } |
| 6775 | |
| 6776 | |
| 6777 Stream_Thread_global = SDL_CreateThread(Stream_Data_Thread_Callback, NULL); | |
| 6778 if(NULL == Stream_Thread_global) | |
| 6779 { | |
| 6780 /* SDL sets the error message already? */ | |
|
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|
6781 SDL_DestroyMutex(s_simpleLock); |
| 0 | 6782 free(source); |
| 6783 free(ALmixer_Channel_List); | |
| 6784 free(Source_Map_List); | |
|
13
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|
6785 LinkedList_Free(s_listOfALmixerData); |
| 0 | 6786 alcDestroyContext(context); |
| 6787 alcCloseDevice(dev); | |
| 6788 ALmixer_Initialized = 0; | |
| 6789 Number_of_Channels_global = 0; | |
|
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|
6790 return AL_FALSE; |
| 0 | 6791 } |
|
24
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|
6792 |
|
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|
6793 /* Note: Only a few platforms change the priority. See implementation for notes. */ |
|
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|
6794 Internal_LowerThreadPriority(Stream_Thread_global); |
| 0 | 6795 |
|
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|
6796 /* |
| 0 | 6797 fprintf(stderr, "Using threads\n"); |
|
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|
6798 */ |
| 0 | 6799 #endif /* End of ENABLE_ALMIXER_THREADS */ |
| 6800 | |
| 6801 /* We don't need this array any more because all the sources | |
| 6802 * are connected to channels | |
| 6803 */ | |
| 6804 free(source); | |
|
2
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|
6805 return AL_TRUE; |
|
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|
6806 } |
|
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|
6807 |
|
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|
6808 |
|
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|
6809 ALboolean ALmixer_InitContext(ALuint frequency, ALuint refresh) |
| 0 | 6810 { |
| 6811 ALCdevice* dev; | |
| 6812 ALCcontext* context; | |
| 6813 ALCenum error; | |
| 6814 | |
| 6815 #ifdef USING_LOKI_AL_DIST | |
| 6816 /* The Loki dist requires that I set both the | |
| 6817 * device and context frequency values separately | |
| 6818 */ | |
| 6819 /* Hope this won't overflow */ | |
| 6820 char device_string[256]; | |
| 6821 #endif | |
| 6822 | |
| 6823 /* (Venting frustration) Damn it! Nobody bothered | |
| 6824 * documenting how you're supposed to use an attribute | |
| 6825 * list. In fact, the not even the Loki test program | |
| 6826 * writers seem to know because they use it inconsistently. | |
| 6827 * For example, how do you terminate that attribute list? | |
| 6828 * The Loki test code does it 3 different ways. They | |
| 6829 * set the last value to 0, or they set it to ALC_INVALID, | |
| 6830 * or they set two final values: ALC_INVALID, 0 | |
| 6831 * In Loki, 0 and ALC_INVALID happen to be the same, | |
| 6832 * but with Creative Labs ALC_INVALID is -1. | |
| 6833 * So something's going to break. Loki's source | |
| 6834 * code says to terminate with ALC_INVALID. But I | |
| 6835 * don't know if that's really true, or it happens | |
| 6836 * to be a coinicidence because it's defined to 0. | |
| 6837 * Creative provides no source code, so I can't look at how | |
| 6838 * they terminate it. | |
| 6839 * So this is really, really ticking me off... | |
| 6840 * For now, I'm going to use ALC_INVALID. | |
| 6841 * (Update...after further review of the API spec, | |
| 6842 * it seems that a NULL terminated string is the correct | |
| 6843 * termination value to use, so 0 it is.) | |
| 6844 */ | |
| 6845 #if 0 | |
| 6846 ALint attrlist[] = { | |
| 6847 ALC_FREQUENCY, ALMIXER_DEFAULT_FREQUENCY, | |
| 6848 /* Don't know anything about these values. | |
| 6849 * Trust defaults? */ | |
| 6850 /* Supposed to be the refresh rate in Hz. | |
| 6851 * I think 15-120 are supposed to be good | |
| 6852 * values. Though I haven't gotten any effect except | |
| 6853 * for one strange instance on a Mac. But it was | |
| 6854 * unrepeatable. | |
| 6855 */ | |
| 6856 #if 0 | |
| 6857 ALC_REFRESH, 15, | |
| 6858 #endif | |
| 6859 /* Sync requires a alcProcessContext() call | |
| 6860 * for every cycle. By default, this is | |
| 6861 * not used and the value is AL_FALSE | |
| 6862 * because it will probably perform | |
| 6863 * pretty badly for me. | |
| 6864 */ | |
| 6865 #ifdef ENABLE_ALMIXER_ALC_SYNC | |
| 6866 ALC_SYNC, AL_TRUE, | |
| 6867 #else | |
| 6868 ALC_SYNC, AL_FALSE, | |
| 6869 #endif | |
| 6870 /* Looking at the API spec, it implies | |
| 6871 * that the list be a NULL terminated string | |
| 6872 * so it's probably not safe to use ALC_INVALID | |
| 6873 */ | |
| 6874 /* | |
| 6875 ALC_INVALID }; | |
| 6876 */ | |
| 6877 '\0'}; | |
| 6878 #endif | |
| 6879 /* Redo: I'm going to allow ALC_REFRESH to be set. | |
| 6880 * However, if no value is specified, I don't | |
| 6881 * want it in the list so I can get the OpenAL defaults | |
| 6882 */ | |
| 6883 ALint attrlist[7]; | |
|
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|
6884 ALsizei current_attrlist_index = 0; |
| 0 | 6885 |
| 6886 #ifdef ENABLE_PARANOID_SIGNEDNESS_CHECK | |
| 6887 /* More problems: I'm getting bit by endian/signedness issues on | |
| 6888 * different platforms. I can find the endianess easily enough, | |
| 6889 * but I don't know how to determine what the correct signedness | |
| 6890 * is (if such a thing exists). I do know that if I try using | |
| 6891 * unsigned on OSX with an originally signed sample, I get | |
| 6892 * distortion. However, I don't have any native unsigned samples | |
| 6893 * to test. But I'm assuming that the platform must be in the | |
| 6894 * correct signedness no matter what. | |
| 6895 * I can either assume everybody is signed, or I can try to | |
| 6896 * determine the value. If I try to determine the values, | |
| 6897 * I think my only ability to figure it out will be to open | |
| 6898 * SDL_Audio, and read what the obtained settings were. | |
| 6899 * Then shutdown everything. However, I don't even know how | |
| 6900 * reliable this is. | |
| 6901 * Update: I think I resolved the issues...forgot to update | |
| 6902 * these comments when it happened. I should check the revision control | |
| 6903 * log... Anyway, I think the issue was partly related to me not | |
| 6904 * doing something correctly with the AudioInfo or some kind | |
| 6905 * of stupid endian bug in my code, and weirdness ensued. Looking at the | |
| 6906 * revision control, I think I might have assumed that SDL_Sound would | |
| 6907 * do the right thing with a NULL AudioInfo, but I was incorrect, | |
| 6908 * and had to fill one out myself. | |
| 6909 */ | |
| 6910 SDL_AudioSpec desired; | |
| 6911 SDL_AudioSpec obtained; | |
| 6912 #endif | |
| 6913 | |
| 6914 | |
| 6915 | |
| 6916 | |
| 6917 /* Make sure ALmixer isn't already initialized */ | |
| 6918 if(ALmixer_Initialized) | |
| 6919 { | |
|
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|
6920 return AL_FALSE; |
| 0 | 6921 } |
| 6922 | |
| 6923 /* Set the defaults */ | |
| 6924 attrlist[0] = ALC_FREQUENCY; | |
| 6925 attrlist[1] = ALMIXER_DEFAULT_FREQUENCY; | |
| 6926 attrlist[2] = ALC_SYNC; | |
| 6927 #ifdef ENABLE_ALMIXER_ALC_SYNC | |
| 6928 attrlist[3] = ALC_TRUE; | |
| 6929 #else | |
| 6930 attrlist[3] = ALC_FALSE; | |
| 6931 #endif | |
| 6932 /* Set frequency value if it is not 0 */ | |
| 6933 if(0 != frequency) | |
| 6934 { | |
|
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|
6935 attrlist[current_attrlist_index] = ALC_FREQUENCY; |
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6936 current_attrlist_index++; |
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|
6937 attrlist[current_attrlist_index] = (ALint)frequency; |
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|
6938 current_attrlist_index++; |
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|
6939 } |
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6940 |
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|
6941 #ifdef ENABLE_ALMIXER_ALC_SYNC |
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6942 attrlist[current_attrlist_index] = ALC_SYNC; |
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6943 current_attrlist_index++; |
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6944 attrlist[current_attrlist_index] = ALC_TRUE; |
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6945 current_attrlist_index++; |
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|
6946 #endif |
| 0 | 6947 |
| 6948 /* If the user specifies a refresh value, | |
| 6949 * make room for it | |
| 6950 */ | |
| 6951 if(0 != refresh) | |
| 6952 { | |
|
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|
6953 attrlist[current_attrlist_index] = (ALint)ALC_REFRESH; |
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|
6954 current_attrlist_index++; |
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|
6955 attrlist[current_attrlist_index] = refresh; |
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|
6956 current_attrlist_index++; |
| 0 | 6957 } |
| 6958 | |
|
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6959 /* End attribute list */ |
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|
6960 attrlist[current_attrlist_index] = '\0'; |
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6961 |
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6962 |
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6963 |
| 0 | 6964 /* Initialize SDL_Sound */ |
| 6965 if(! Sound_Init() ) | |
| 6966 { | |
| 6967 ALmixer_SetError(Sound_GetError()); | |
|
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6968 return AL_FALSE; |
| 0 | 6969 } |
| 6970 #ifdef ENABLE_PARANOID_SIGNEDNESS_CHECK | |
| 6971 /* Here is the paranoid check that opens | |
| 6972 * SDL audio in an attempt to find the correct | |
| 6973 * system values. | |
| 6974 */ | |
| 6975 /* Doesn't have to be the actual value I think | |
| 6976 * (as long as it doesn't influence format, in | |
| 6977 * which case I'm probably screwed anyway because OpenAL | |
| 6978 * may easily choose to do something else). | |
| 6979 */ | |
| 6980 desired.freq = 44100; | |
| 6981 desired.channels = 2; | |
| 6982 desired.format = AUDIO_S16SYS; | |
| 6983 desired.callback = my_dummy_audio_callback; | |
| 6984 if(SDL_OpenAudio(&desired, &obtained) >= 0) | |
| 6985 { | |
| 6986 SIGN_TYPE_16BIT_FORMAT = obtained.format; | |
| 6987 /* Now to get really paranoid, we should probably | |
| 6988 * also assume that the 8bit format is also the | |
| 6989 * same sign type and set that value | |
| 6990 */ | |
| 6991 if(AUDIO_S16SYS == obtained.format) | |
| 6992 { | |
| 6993 SIGN_TYPE_8BIT_FORMAT = AUDIO_S8; | |
| 6994 } | |
| 6995 /* Should be AUDIO_U16SYS */ | |
| 6996 else | |
| 6997 { | |
| 6998 SIGN_TYPE_8BIT_FORMAT = AUDIO_U8; | |
| 6999 } | |
| 7000 SDL_CloseAudio(); | |
| 7001 } | |
| 7002 else | |
| 7003 { | |
| 7004 /* Well, I guess I'm in trouble. I guess it's my best guess | |
| 7005 */ | |
| 7006 SIGN_TYPE_16_BIT_FORMAT = AUDIO_S16SYS; | |
| 7007 SIGN_TYPE_8_BIT_FORMAT = AUDIO_S8; | |
| 7008 } | |
| 7009 #endif | |
|
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7010 |
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7011 #ifndef ALMIXER_COMPILE_WITHOUT_SDL |
| 0 | 7012 /* Weirdness: It seems that SDL_Init(SDL_INIT_AUDIO) |
| 7013 * causes OpenAL and SMPEG to conflict. For some reason | |
| 7014 * if SDL_Init on audio is active, then all the SMPEG | |
| 7015 * decoded sound comes out silent. Unfortunately, | |
| 7016 * Sound_Init() invokes SDL_Init on audio. I'm | |
| 7017 * not sure why it actually needs it... | |
| 7018 * But we'll attempt to disable it here after the | |
| 7019 * SDL_Sound::Init call and hope it doesn't break SDL_Sound. | |
| 7020 */ | |
| 7021 SDL_QuitSubSystem(SDL_INIT_AUDIO); | |
|
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7022 #endif |
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7023 |
| 0 | 7024 /* I'm told NULL will call the default string |
| 7025 * and hopefully do the right thing for each platform | |
| 7026 */ | |
| 7027 /* | |
| 7028 dev = alcOpenDevice( NULL ); | |
| 7029 */ | |
| 7030 /* Now I'm told I need to set both the device and context | |
| 7031 * to have the same sampling rate, so I must pass a string | |
| 7032 * to OpenDevice(). I don't know how portable these strings are. | |
| 7033 * I don't even know if the format for strings is | |
| 7034 * compatible | |
| 7035 * From the testattrib.c in the Loki test section | |
| 7036 * dev = alcOpenDevice( (const ALubyte *) "'((sampling-rate 22050))" ); | |
| 7037 */ | |
| 7038 | |
| 7039 #ifdef USING_LOKI_AL_DIST | |
| 7040 sprintf(device_string, "'((sampling-rate %d))", attrlist[1]); | |
| 7041 dev = alcOpenDevice( (const ALubyte *) device_string ); | |
| 7042 #else | |
| 7043 dev = alcOpenDevice( NULL ); | |
| 7044 #endif | |
| 7045 if(NULL == dev) | |
| 7046 { | |
| 7047 ALmixer_SetError("Cannot open sound device for OpenAL"); | |
|
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7048 return AL_FALSE; |
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|
7049 } |
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7050 |
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7051 #ifdef __APPLE__ |
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7052 /* The ALC_FREQUENCY attribute is ignored with Apple's implementation. */ |
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7053 /* This extension must be called before the context is created. */ |
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7054 if(0 != frequency) |
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7055 { |
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|
7056 Internal_alcMacOSXMixerOutputRate((ALdouble)frequency); |
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7057 } |
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|
7058 ALmixer_Frequency_global = (ALuint)Internal_alcMacOSXGetMixerOutputRate(); |
|
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7059 /* |
|
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|
7060 fprintf(stderr, "Internal_alcMacOSXMixerOutputRate is: %lf", Internal_alcMacOSXGetMixerOutputRate()); |
|
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7061 */ |
|
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7062 #endif |
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|
7063 |
| 0 | 7064 |
| 7065 context = alcCreateContext(dev, attrlist); | |
| 7066 if(NULL == context) | |
| 7067 { | |
| 7068 ALmixer_SetError("Cannot create a context OpenAL"); | |
| 7069 alcCloseDevice(dev); | |
|
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7070 return AL_FALSE; |
| 0 | 7071 } |
| 7072 | |
| 7073 | |
| 7074 /* Hmmm, OSX is returning 1 on alcMakeContextCurrent, | |
| 7075 * but ALC_NO_ERROR is defined to ALC_FALSE. | |
| 7076 * According to Garin Hiebert, this is actually an inconsistency | |
| 7077 * in the Loki version. The function should return a boolean. | |
| 7078 * instead of ALC_NO_ERROR. Garin suggested I check via | |
| 7079 * alcGetError(). | |
| 7080 */ | |
| 7081 /* clear the error */ | |
| 7082 alcGetError(dev); | |
| 7083 alcMakeContextCurrent(context); | |
| 7084 | |
| 7085 error = alcGetError(dev); | |
| 7086 if( (ALC_NO_ERROR != error) ) | |
| 7087 { | |
| 7088 ALmixer_SetError("Could not MakeContextCurrent"); | |
| 7089 alcDestroyContext(context); | |
| 7090 alcCloseDevice(dev); | |
|
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|
7091 return AL_FALSE; |
| 0 | 7092 } |
| 7093 | |
| 7094 | |
| 7095 #if 0 | |
| 7096 /* OSX is failing on alcMakeContextCurrent(). Try checking it first? */ | |
| 7097 if(alcGetCurrentContext() != context) | |
| 7098 { | |
| 7099 /* Hmmm, OSX is returning 1 on alcMakeContextCurrent, | |
| 7100 * but ALC_NO_ERROR is defined to ALC_FALSE. | |
| 7101 * I think this is a bug in the OpenAL implementation. | |
| 7102 */ | |
| 7103 fprintf(stderr,"alcMakeContextCurrent returns %d\n", alcMakeContextCurrent(context)); | |
| 7104 | |
| 7105 fprintf(stderr, "Making context current\n"); | |
| 7106 #ifndef __APPLE__ | |
| 7107 if(alcMakeContextCurrent(context) != ALC_NO_ERROR) | |
| 7108 #else | |
| 7109 if(!alcMakeContextCurrent(context)) | |
| 7110 #endif | |
| 7111 { | |
| 7112 ALmixer_SetError("Could not MakeContextCurrent"); | |
| 7113 alcDestroyContext(context); | |
| 7114 alcCloseDevice(dev); | |
|
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7115 return AL_FALSE; |
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7116 } |
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|
7117 |
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7118 } |
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|
7119 #endif |
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7120 |
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|
7121 /* It looks like OpenAL won't let us ask it what |
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7122 * the set frequency is, so we need to save our |
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7123 * own copy. Yuck. |
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|
7124 * Update: J. Valenzuela just updated the Loki |
|
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|
7125 * dist (2003/01/02) to handle this. |
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|
7126 * The demo is in testattrib.c. |
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|
7127 */ |
|
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|
7128 #ifndef __APPLE__ |
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7129 alcGetIntegerv(dev, ALC_FREQUENCY, 1, &ALmixer_Frequency_global); |
|
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7130 /* |
|
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|
7131 fprintf(stderr, "alcGetIntegerv ALC_FREQUENCY is: %d", ALmixer_Frequency_global); |
|
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7132 */ |
|
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|
7133 #endif |
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7134 |
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|
7135 |
| 0 | 7136 |
| 7137 /* Saw this in the README with the OS X OpenAL distribution. | |
| 7138 * It looked interesting and simple, so I thought I might | |
| 7139 * try it out. | |
| 7140 * ***** ALC_CONVERT_DATA_UPON_LOADING | |
| 7141 * This extension allows the caller to tell OpenAL to preconvert to the native Core | |
| 7142 * Audio format, the audio data passed to the | |
| 7143 * library with the alBufferData() call. Preconverting the audio data, reduces CPU | |
| 7144 * usage by removing an audio data conversion | |
| 7145 * (per source) at render timem at the expense of a larger memory footprint. | |
| 7146 * | |
| 7147 * This feature is toggled on/off by using the alDisable() & alEnable() APIs. This | |
| 7148 * setting will be applied to all subsequent | |
| 7149 * calls to alBufferData(). | |
|
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7150 * Update: Some people keep reporting that they see the enable fail on Mac, but I can't reproduce it myself. |
|
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7151 * Rather than deal with it right now, I think I am going to make it an opt-in thing. |
| 0 | 7152 */ |
|
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7153 #if defined(__APPLE__) && defined(ALMIXER_USE_OSX_CONVERT_DATA_UPON_LOADING) |
|
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|
7154 /* |
|
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|
7155 iPhone is getting this enum, but is failing on the enable, so I guess I'll define it out. |
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|
7156 */ |
|
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|
7157 #if (TARGET_OS_IPHONE == 1) || (TARGET_IPHONE_SIMULATOR == 1) |
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|
7158 |
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|
7159 #else |
|
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|
7160 /* iOS reports this enum exists, but loading it always fails, so make it Mac only. */ |
|
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|
7161 ALenum convert_data_enum = alcGetEnumValue(dev, "ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING"); |
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|
7162 /* |
|
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|
7163 fprintf(stderr, "ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING=0x%x", convert_data_enum); |
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|
7164 */ |
|
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|
7165 if(0 != convert_data_enum) |
|
58f03008ea05
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16
diff
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|
7166 { |
|
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7167 alEnable(convert_data_enum); |
|
58f03008ea05
- Added Seek APIs
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16
diff
changeset
|
7168 } |
|
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
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16
diff
changeset
|
7169 if( (AL_NO_ERROR != alGetError()) ) |
|
58f03008ea05
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16
diff
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|
7170 { |
|
58f03008ea05
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7171 fprintf(stderr, "ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING attempted but failed"); |
|
58f03008ea05
- Added Seek APIs
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parents:
16
diff
changeset
|
7172 ALmixer_SetError("ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING attempted but failed"); |
|
58f03008ea05
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16
diff
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|
7173 } |
|
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
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16
diff
changeset
|
7174 #endif |
|
2
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1
diff
changeset
|
7175 #endif |
|
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1
diff
changeset
|
7176 |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7177 return AL_TRUE; |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7178 } |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7179 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7180 |
|
22
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16
diff
changeset
|
7181 ALboolean ALmixer_InitMixer(ALuint num_sources) |
| 0 | 7182 { |
|
2
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1
diff
changeset
|
7183 ALint i; |
| 0 | 7184 ALenum error; |
| 7185 ALuint* source; | |
| 7186 | |
| 7187 | |
| 7188 ALmixer_Initialized = 1; | |
| 7189 | |
|
2
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Overhaul prep for first public release.
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diff
changeset
|
7190 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7191 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
|
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diff
changeset
|
7192 ALmixer_InitTime(); |
|
279d0427ef26
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1
diff
changeset
|
7193 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7194 /* Note: The pool may have been created on previous Init's */ |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7195 /* I leave the pool allocated allocated in case the user wants |
|
279d0427ef26
Overhaul prep for first public release.
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1
diff
changeset
|
7196 * to read the pool in case of a failure (such as in this function). |
|
279d0427ef26
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diff
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|
7197 * This is not actually a leak. |
|
279d0427ef26
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diff
changeset
|
7198 */ |
|
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1
diff
changeset
|
7199 if(NULL == s_ALmixerErrorPool) |
|
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diff
changeset
|
7200 { |
|
279d0427ef26
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diff
changeset
|
7201 s_ALmixerErrorPool = TError_CreateErrorPool(); |
|
279d0427ef26
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diff
changeset
|
7202 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7203 if(NULL == s_ALmixerErrorPool) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7204 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7205 return AL_FALSE; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7206 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7207 /* |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7208 fprintf(stderr, "tError Test0\n"); |
|
279d0427ef26
Overhaul prep for first public release.
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parents:
1
diff
changeset
|
7209 ALmixer_SetError("Initing (and testing SetError)"); |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7210 fprintf(stderr, "tError Test1: %s\n", ALmixer_GetError()); |
|
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Eric Wing <ewing . public |-at-| gmail . com>
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diff
changeset
|
7211 fprintf(stderr, "tError Test2: %s\n", ALmixer_GetError()); |
|
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Overhaul prep for first public release.
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diff
changeset
|
7212 */ |
|
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Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
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diff
changeset
|
7213 #endif |
|
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Eric Wing <ewing . public |-at-| gmail . com>
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diff
changeset
|
7214 |
|
22
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diff
changeset
|
7215 if(num_sources == 0) |
| 0 | 7216 { |
| 7217 Number_of_Channels_global = ALMIXER_DEFAULT_NUM_CHANNELS; | |
| 7218 } | |
| 7219 else | |
| 7220 { | |
|
22
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16
diff
changeset
|
7221 Number_of_Channels_global = (ALint)num_sources; |
| 0 | 7222 } |
| 7223 Number_of_Reserve_Channels_global = 0; | |
| 7224 Is_Playing_global = 0; | |
| 7225 /* Set to Null in case system quit and was reinitialized */ | |
| 7226 Channel_Done_Callback = NULL; | |
| 7227 Channel_Done_Callback_Userdata = NULL; | |
| 7228 Channel_Data_Callback = NULL; | |
| 1 | 7229 Channel_Data_Callback_Userdata = NULL; |
| 0 | 7230 |
|
13
54aa96ae8912
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7231 /* Allocate memory for linked list of ALmixerData. */ |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
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12
diff
changeset
|
7232 s_listOfALmixerData = LinkedList_Create(); |
|
54aa96ae8912
Added LinkedList class to project.
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12
diff
changeset
|
7233 if(NULL == s_listOfALmixerData) |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7234 { |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7235 ALmixer_SetError("Couldn't create linked list"); |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7236 ALmixer_Initialized = 0; |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
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12
diff
changeset
|
7237 Number_of_Channels_global = 0; |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
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12
diff
changeset
|
7238 return AL_FALSE; |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7239 } |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7240 |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7241 |
| 0 | 7242 /* Allocate memory for the list of channels */ |
| 7243 ALmixer_Channel_List = (struct ALmixer_Channel*) malloc(Number_of_Channels_global * sizeof(struct ALmixer_Channel)); | |
| 7244 if(NULL == ALmixer_Channel_List) | |
| 7245 { | |
| 7246 ALmixer_SetError("Out of Memory for Channel List"); | |
|
13
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Added LinkedList class to project.
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12
diff
changeset
|
7247 LinkedList_Free(s_listOfALmixerData); |
| 0 | 7248 ALmixer_Initialized = 0; |
| 7249 Number_of_Channels_global = 0; | |
|
2
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1
diff
changeset
|
7250 return AL_FALSE; |
| 0 | 7251 } |
| 7252 | |
| 7253 /* Allocate memory for the list of sources that map to the channels */ | |
| 7254 Source_Map_List = (Source_Map*) malloc(Number_of_Channels_global * sizeof(Source_Map)); | |
| 7255 if(NULL == Source_Map_List) | |
| 7256 { | |
| 7257 ALmixer_SetError("Out of Memory for Source Map List"); | |
| 7258 free(ALmixer_Channel_List); | |
|
13
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Added LinkedList class to project.
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12
diff
changeset
|
7259 LinkedList_Free(s_listOfALmixerData); |
| 0 | 7260 ALmixer_Initialized = 0; |
| 7261 Number_of_Channels_global = 0; | |
|
2
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1
diff
changeset
|
7262 return AL_FALSE; |
| 0 | 7263 } |
| 7264 | |
| 7265 /* Create array that will hold the sources */ | |
| 7266 source = (ALuint*)malloc(Number_of_Channels_global * sizeof(ALuint)); | |
| 7267 if(NULL == source) | |
| 7268 { | |
| 7269 ALmixer_SetError("Out of Memory for sources"); | |
| 7270 free(Source_Map_List); | |
| 7271 free(ALmixer_Channel_List); | |
|
13
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
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12
diff
changeset
|
7272 LinkedList_Free(s_listOfALmixerData); |
| 0 | 7273 ALmixer_Initialized = 0; |
| 7274 Number_of_Channels_global = 0; | |
|
2
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Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7275 return AL_FALSE; |
| 0 | 7276 } |
| 7277 | |
| 7278 /* Clear the error state */ | |
| 7279 alGetError(); | |
| 7280 /* Generate the OpenAL sources */ | |
| 7281 alGenSources(Number_of_Channels_global, source); | |
| 7282 if( (error=alGetError()) != AL_NO_ERROR) | |
| 7283 { | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7284 ALmixer_SetError("Couldn't generate sources: %s\n", alGetString(error)); |
| 0 | 7285 free(ALmixer_Channel_List); |
| 7286 free(Source_Map_List); | |
|
13
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Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
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12
diff
changeset
|
7287 LinkedList_Free(s_listOfALmixerData); |
| 0 | 7288 ALmixer_Initialized = 0; |
| 7289 Number_of_Channels_global = 0; | |
|
2
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Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7290 return AL_FALSE; |
| 0 | 7291 } |
| 7292 | |
| 7293 /* Initialize each channel and associate one source to one channel */ | |
| 7294 for(i=0; i<Number_of_Channels_global; i++) | |
| 7295 { | |
| 7296 Init_Channel(i); | |
| 7297 /* Keeping the source allocation out of the Init function | |
| 7298 * in case I want to reuse the Init | |
| 7299 * function for resetting data | |
| 7300 */ | |
| 7301 ALmixer_Channel_List[i].alsource = source[i]; | |
| 7302 /* Now also keep a copy of the source to channel mapping | |
| 7303 * in case we need to look up a channel from the source | |
| 7304 * instead of a source from a channel | |
| 7305 */ | |
| 7306 Source_Map_List[i].source = source[i]; | |
| 7307 Source_Map_List[i].channel = i; | |
| 7308 /* Clean the channel because there are some things that need to | |
| 7309 * be done that can't happen until the source is set | |
| 7310 */ | |
| 7311 Clean_Channel(i); | |
| 7312 } | |
| 7313 | |
| 7314 /* The Source_Map_List must be sorted by source for binary searches | |
| 7315 */ | |
| 7316 qsort(Source_Map_List, Number_of_Channels_global, sizeof(Source_Map), Compare_Source_Map); | |
| 7317 | |
|
2
279d0427ef26
Overhaul prep for first public release.
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1
diff
changeset
|
7318 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7319 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
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1
diff
changeset
|
7320 s_simpleLock = SDL_CreateMutex(); |
|
279d0427ef26
Overhaul prep for first public release.
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1
diff
changeset
|
7321 if(NULL == s_simpleLock) |
| 0 | 7322 { |
| 7323 /* SDL sets the error message already? */ | |
| 7324 free(source); | |
| 7325 free(ALmixer_Channel_List); | |
| 7326 free(Source_Map_List); | |
| 7327 ALmixer_Initialized = 0; | |
| 7328 Number_of_Channels_global = 0; | |
|
2
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Overhaul prep for first public release.
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1
diff
changeset
|
7329 return AL_FALSE; |
| 0 | 7330 } |
| 7331 | |
| 7332 | |
| 7333 Stream_Thread_global = SDL_CreateThread(Stream_Data_Thread_Callback, NULL); | |
| 7334 if(NULL == Stream_Thread_global) | |
| 7335 { | |
| 7336 /* SDL sets the error message already? */ | |
|
2
279d0427ef26
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1
diff
changeset
|
7337 SDL_DestroyMutex(s_simpleLock); |
| 0 | 7338 free(source); |
| 7339 free(ALmixer_Channel_List); | |
| 7340 free(Source_Map_List); | |
| 7341 ALmixer_Initialized = 0; | |
| 7342 Number_of_Channels_global = 0; | |
|
2
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Overhaul prep for first public release.
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1
diff
changeset
|
7343 return AL_FALSE; |
| 0 | 7344 } |
|
24
e085cbc573cf
iOS optimization/bug/workaround.
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22
diff
changeset
|
7345 |
|
e085cbc573cf
iOS optimization/bug/workaround.
Eric Wing <ewing . public |-at-| gmail . com>
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22
diff
changeset
|
7346 /* Note: Only a few platforms change the priority. See implementation for notes. */ |
|
e085cbc573cf
iOS optimization/bug/workaround.
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22
diff
changeset
|
7347 Internal_LowerThreadPriority(Stream_Thread_global); |
|
e085cbc573cf
iOS optimization/bug/workaround.
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22
diff
changeset
|
7348 |
|
6
4b1048af7e55
Disabled some of the debugging printfs
Eric Wing <ewing . public |-at-| gmail . com>
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3
diff
changeset
|
7349 /* |
| 0 | 7350 fprintf(stderr, "Using threads\n"); |
|
6
4b1048af7e55
Disabled some of the debugging printfs
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3
diff
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|
7351 */ |
| 0 | 7352 #endif /* End of ENABLE_ALMIXER_THREADS */ |
| 7353 | |
| 7354 /* We don't need this array any more because all the sources | |
| 7355 * are connected to channels | |
| 7356 */ | |
| 7357 free(source); | |
|
2
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Overhaul prep for first public release.
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1
diff
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|
7358 return AL_TRUE; |
| 0 | 7359 } |
| 7360 | |
|
22
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16
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|
7361 void ALmixer_BeginInterruption() |
|
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16
diff
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|
7362 { |
|
58f03008ea05
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16
diff
changeset
|
7363 #ifdef ENABLE_ALMIXER_THREADS |
|
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|
7364 SDL_LockMutex(s_simpleLock); |
|
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16
diff
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|
7365 #endif |
|
58f03008ea05
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diff
changeset
|
7366 s_interruptionContext = alcGetCurrentContext(); |
|
58f03008ea05
- Added Seek APIs
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16
diff
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|
7367 if(NULL != s_interruptionContext) |
|
58f03008ea05
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16
diff
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|
7368 { |
|
58f03008ea05
- Added Seek APIs
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16
diff
changeset
|
7369 /* iOS alcSuspendContext is a no-op */ |
|
58f03008ea05
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16
diff
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|
7370 alcSuspendContext(s_interruptionContext); |
|
58f03008ea05
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16
diff
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|
7371 alcMakeContextCurrent(NULL); |
|
58f03008ea05
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16
diff
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|
7372 } |
|
58f03008ea05
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16
diff
changeset
|
7373 #ifdef ENABLE_ALMIXER_THREADS |
|
58f03008ea05
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16
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|
7374 SDL_UnlockMutex(s_simpleLock); |
|
58f03008ea05
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|
7375 #endif |
|
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16
diff
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|
7376 } |
|
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16
diff
changeset
|
7377 |
|
58f03008ea05
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diff
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|
7378 void ALmixer_EndInterruption() |
|
58f03008ea05
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16
diff
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|
7379 { |
|
58f03008ea05
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diff
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|
7380 #ifdef ENABLE_ALMIXER_THREADS |
|
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|
7381 SDL_LockMutex(s_simpleLock); |
|
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16
diff
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|
7382 #endif |
|
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16
diff
changeset
|
7383 |
|
58f03008ea05
- Added Seek APIs
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16
diff
changeset
|
7384 /* Note: iOS, you need to set the AudioSession active. |
|
58f03008ea05
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16
diff
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|
7385 * But if the AudioSession is not initialized, this SetActive |
|
58f03008ea05
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diff
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|
7386 * call fails. |
|
58f03008ea05
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|
7387 * So this is probably better if calling app sets this. |
|
58f03008ea05
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diff
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|
7388 */ |
|
58f03008ea05
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16
diff
changeset
|
7389 /* |
|
58f03008ea05
- Added Seek APIs
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16
diff
changeset
|
7390 #if (TARGET_OS_IPHONE == 1) || (TARGET_IPHONE_SIMULATOR == 1) |
|
58f03008ea05
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|
7391 OSStatus the_error = AudioSessionSetActive(true); |
|
58f03008ea05
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|
7392 if(noErr != the_error) |
|
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|
7393 { |
|
58f03008ea05
- Added Seek APIs
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diff
changeset
|
7394 fprintf(stderr, "Error setting audio session active! %d\n", the_error); |
|
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changeset
|
7395 } |
|
58f03008ea05
- Added Seek APIs
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diff
changeset
|
7396 #endif |
|
58f03008ea05
- Added Seek APIs
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parents:
16
diff
changeset
|
7397 */ |
|
58f03008ea05
- Added Seek APIs
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16
diff
changeset
|
7398 |
|
58f03008ea05
- Added Seek APIs
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|
7399 if(NULL != s_interruptionContext) |
|
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|
7400 { |
|
58f03008ea05
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|
7401 alcMakeContextCurrent(s_interruptionContext); |
|
58f03008ea05
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|
7402 alcProcessContext(s_interruptionContext); |
|
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|
7403 s_interruptionContext = NULL; |
|
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|
7404 } |
|
58f03008ea05
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diff
changeset
|
7405 #ifdef ENABLE_ALMIXER_THREADS |
|
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|
7406 SDL_UnlockMutex(s_simpleLock); |
|
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|
7407 #endif |
|
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|
7408 } |
| 0 | 7409 |
| 7410 /* Keep the return value void to allow easy use with | |
| 7411 * atexit() | |
| 7412 */ | |
| 7413 void ALmixer_Quit() | |
| 7414 { | |
| 7415 ALCcontext* context; | |
| 7416 ALCdevice* dev; | |
|
2
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|
7417 ALint i; |
| 0 | 7418 |
| 7419 if( ! ALmixer_Initialized) | |
| 7420 { | |
| 7421 return; | |
| 7422 } | |
|
2
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|
7423 #ifdef ENABLE_ALMIXER_THREADS |
|
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|
7424 SDL_LockMutex(s_simpleLock); |
|
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diff
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|
7425 #endif |
|
22
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diff
changeset
|
7426 |
|
58f03008ea05
- Added Seek APIs
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diff
changeset
|
7427 /* Several things we need to do: |
|
58f03008ea05
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diff
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|
7428 First, we need to check if we are in an interruption. |
|
58f03008ea05
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diff
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|
7429 If so, we need to reactivate the alcContext so we can call OpenAL functions. |
|
58f03008ea05
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diff
changeset
|
7430 Next, we should delete the OpenAL sources. |
|
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diff
changeset
|
7431 Next, we need to free all the sound data via ALmixer_FreeData(). |
|
58f03008ea05
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diff
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|
7432 Finally, we can delete the OpenAL context. |
|
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diff
changeset
|
7433 */ |
|
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diff
changeset
|
7434 |
|
58f03008ea05
- Added Seek APIs
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diff
changeset
|
7435 context = alcGetCurrentContext(); |
|
58f03008ea05
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diff
changeset
|
7436 if(NULL == context) |
|
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diff
changeset
|
7437 { |
|
58f03008ea05
- Added Seek APIs
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diff
changeset
|
7438 /* We might have an interruption event where the current context is NULL */ |
|
58f03008ea05
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diff
changeset
|
7439 if(NULL == s_interruptionContext) |
|
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- Added Seek APIs
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diff
changeset
|
7440 { |
|
58f03008ea05
- Added Seek APIs
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16
diff
changeset
|
7441 /* Nothing left to try. I think we're done. */ |
|
58f03008ea05
- Added Seek APIs
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diff
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|
7442 fprintf(stderr, "ALmixer_Quit: Assertion Error. Expecting to find an OpenAL context, but could not find one.\n"); |
|
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|
7443 return; |
|
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- Added Seek APIs
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16
diff
changeset
|
7444 } |
|
58f03008ea05
- Added Seek APIs
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16
diff
changeset
|
7445 else |
|
58f03008ea05
- Added Seek APIs
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16
diff
changeset
|
7446 { |
|
58f03008ea05
- Added Seek APIs
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diff
changeset
|
7447 context = s_interruptionContext; |
|
58f03008ea05
- Added Seek APIs
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|
7448 /* reactivate the context so we can call OpenAL functions */ |
|
58f03008ea05
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|
7449 alcMakeContextCurrent(context); |
|
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diff
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|
7450 s_interruptionContext = NULL; |
|
58f03008ea05
- Added Seek APIs
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16
diff
changeset
|
7451 } |
|
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7452 } |
|
58f03008ea05
- Added Seek APIs
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16
diff
changeset
|
7453 |
| 0 | 7454 /* Shutdown everything before closing context */ |
|
2
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1
diff
changeset
|
7455 Internal_HaltChannel(-1, AL_FALSE); |
| 0 | 7456 |
| 7457 /* This flag will cause the thread to terminate */ | |
| 7458 ALmixer_Initialized = 0; | |
| 7459 #ifdef ENABLE_ALMIXER_THREADS | |
|
2
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1
diff
changeset
|
7460 SDL_UnlockMutex(s_simpleLock); |
| 0 | 7461 SDL_WaitThread(Stream_Thread_global, NULL); |
| 7462 | |
|
2
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1
diff
changeset
|
7463 SDL_DestroyMutex(s_simpleLock); |
|
279d0427ef26
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diff
changeset
|
7464 #endif |
|
22
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diff
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|
7465 |
| 0 | 7466 /* Delete all the OpenAL sources */ |
| 7467 for(i=0; i<Number_of_Channels_global; i++) | |
| 7468 { | |
| 7469 alDeleteSources(1, &ALmixer_Channel_List[i].alsource); | |
| 7470 } | |
| 7471 /* Delete all the channels */ | |
| 7472 free(ALmixer_Channel_List); | |
| 7473 free(Source_Map_List); | |
|
22
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16
diff
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|
7474 |
| 0 | 7475 /* Reset the Number_of_Channels just in case somebody |
| 7476 * tries using a ALmixer function. | |
| 7477 * I probably should put "Initialized" checks everywhere, | |
| 7478 * but I'm too lazy at the moment. | |
| 7479 */ | |
| 7480 Number_of_Channels_global = 0; | |
| 7481 | |
|
22
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- Added Seek APIs
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16
diff
changeset
|
7482 |
|
13
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7483 /* Delete the list of ALmixerData's before Sound_Quit deletes |
|
54aa96ae8912
Added LinkedList class to project.
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parents:
12
diff
changeset
|
7484 * its own underlying information and I potentially have dangling pointers. |
|
54aa96ae8912
Added LinkedList class to project.
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parents:
12
diff
changeset
|
7485 */ |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7486 while(LinkedList_Size(s_listOfALmixerData) > 0) |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7487 { |
|
16
038baa026db3
Fixed bug in LinkedList delete. Shouldn't have both popped list and then called FreeData which would check the list again for the data. Instead, I should just get the data and then call FreeData to let it manipulate the list.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
13
diff
changeset
|
7488 /* Note that ALmixer_FreeData will remove the data from the linked list for us so don't pop the list here. */ |
|
038baa026db3
Fixed bug in LinkedList delete. Shouldn't have both popped list and then called FreeData which would check the list again for the data. Instead, I should just get the data and then call FreeData to let it manipulate the list.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
13
diff
changeset
|
7489 ALmixer_Data* almixer_data = LinkedList_Back(s_listOfALmixerData); |
|
13
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7490 ALmixer_FreeData(almixer_data); |
|
54aa96ae8912
Added LinkedList class to project.
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parents:
12
diff
changeset
|
7491 } |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7492 LinkedList_Free(s_listOfALmixerData); |
|
54aa96ae8912
Added LinkedList class to project.
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12
diff
changeset
|
7493 s_listOfALmixerData = NULL; |
|
22
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|
7494 |
|
58f03008ea05
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16
diff
changeset
|
7495 |
|
58f03008ea05
- Added Seek APIs
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diff
changeset
|
7496 /* Need to get the device before I close the context */ |
|
58f03008ea05
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|
7497 dev = alcGetContextsDevice(context); |
|
58f03008ea05
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|
7498 |
|
58f03008ea05
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diff
changeset
|
7499 alcMakeContextCurrent(NULL); |
|
58f03008ea05
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|
7500 alcDestroyContext(context); |
|
58f03008ea05
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16
diff
changeset
|
7501 |
|
58f03008ea05
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16
diff
changeset
|
7502 if(NULL == dev) |
|
58f03008ea05
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16
diff
changeset
|
7503 { |
|
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diff
changeset
|
7504 return; |
|
58f03008ea05
- Added Seek APIs
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16
diff
changeset
|
7505 } |
|
58f03008ea05
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diff
changeset
|
7506 alcCloseDevice(dev); |
|
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16
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|
7507 |
| 0 | 7508 Sound_Quit(); |
| 7509 | |
|
2
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1
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|
7510 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
|
279d0427ef26
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1
diff
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|
7511 /* Remember: ALmixer_SetError/GetError calls will not work while this is gone. */ |
|
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1
diff
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|
7512 TError_FreeErrorPool(s_ALmixerErrorPool); |
|
279d0427ef26
Overhaul prep for first public release.
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1
diff
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|
7513 s_ALmixerErrorPool = NULL; |
|
279d0427ef26
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1
diff
changeset
|
7514 #endif |
| 0 | 7515 return; |
| 7516 } | |
| 7517 | |
|
2
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1
diff
changeset
|
7518 ALboolean ALmixer_IsInitialized() |
| 0 | 7519 { |
| 7520 return ALmixer_Initialized; | |
| 7521 } | |
| 7522 | |
|
2
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1
diff
changeset
|
7523 ALuint ALmixer_GetFrequency() |
| 0 | 7524 { |
| 7525 return ALmixer_Frequency_global; | |
| 7526 } | |
| 7527 | |
|
2
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Overhaul prep for first public release.
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1
diff
changeset
|
7528 const ALmixer_version* ALmixer_GetLinkedVersion() |
|
279d0427ef26
Overhaul prep for first public release.
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1
diff
changeset
|
7529 { |
|
279d0427ef26
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1
diff
changeset
|
7530 static ALmixer_version linked_mixver; |
|
279d0427ef26
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1
diff
changeset
|
7531 ALMIXER_GET_COMPILED_VERSION(&linked_mixver); |
| 0 | 7532 return(&linked_mixver); |
| 7533 } | |
| 7534 | |
|
2
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Overhaul prep for first public release.
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1
diff
changeset
|
7535 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
|
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7536 |
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|
7537 const char* ALmixer_GetError() |
|
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7538 { |
|
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7539 const char* error_string = NULL; |
|
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7540 if(NULL == s_ALmixerErrorPool) |
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7541 { |
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7542 return "Error: You should not call ALmixer_GetError while ALmixer is not initialized"; |
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7543 } |
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7544 error_string = TError_GetLastErrorStr(s_ALmixerErrorPool); |
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7545 /* SDL returns empty strings instead of NULL */ |
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7546 if(NULL == error_string) |
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7547 { |
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7548 return ""; |
|
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7549 } |
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7550 else |
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7551 { |
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7552 return error_string; |
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7553 } |
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7554 } |
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7555 |
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7556 void ALmixer_SetError(const char* err_str, ...) |
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7557 { |
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7558 if(NULL == s_ALmixerErrorPool) |
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7559 { |
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7560 fprintf(stderr, "Error: You should not call ALmixer_SetError while ALmixer is not initialized\n"); |
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7561 return; |
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7562 } |
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7563 va_list argp; |
|
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7564 va_start(argp, err_str); |
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7565 // SDL_SetError which I'm emulating has no number parameter. |
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7566 TError_SetErrorv(s_ALmixerErrorPool, 1, err_str, argp); |
|
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7567 va_end(argp); |
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7568 } |
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7569 |
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|
7570 #endif |
| 0 | 7571 |
| 7572 | |
| 7573 | |
| 7574 | |
| 7575 #if 0 | |
|
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7576 void ALmixer_OutputAttributes() |
| 0 | 7577 { |
| 7578 ALint num_flags = 0; | |
| 7579 ALint* flags = 0; | |
| 7580 int i; | |
| 7581 ALCdevice* dev = alcGetContextsDevice( alcGetCurrentContext() ); | |
| 7582 | |
| 7583 | |
| 7584 printf("custom context\n"); | |
| 7585 | |
| 7586 alcGetIntegerv(dev, ALC_ATTRIBUTES_SIZE, | |
| 7587 sizeof num_flags, &num_flags ); | |
| 7588 | |
| 7589 printf("Number of Flags: %d\n", num_flags); | |
| 7590 | |
| 7591 if(num_flags) | |
| 7592 { | |
| 7593 flags = malloc(sizeof(num_flags) * sizeof(ALint)); | |
| 7594 | |
| 7595 alcGetIntegerv(dev, ALC_ALL_ATTRIBUTES, | |
| 7596 sizeof num_flags * sizeof(ALint), | |
| 7597 flags ); | |
| 7598 } | |
| 7599 for(i = 0; i < num_flags-1; i += 2) | |
| 7600 { | |
| 7601 printf("key 0x%x : value %d\n", | |
| 7602 flags[i], flags[i+1]); | |
| 7603 } | |
| 7604 free(flags); | |
| 7605 } | |
| 7606 #endif | |
| 7607 | |
| 7608 | |
|
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7609 void ALmixer_OutputDecoders() |
| 0 | 7610 { |
| 7611 Sound_Version sound_compile_version; | |
| 7612 Sound_Version sound_link_version; | |
| 7613 | |
| 7614 const Sound_DecoderInfo **rc = Sound_AvailableDecoders(); | |
| 7615 const Sound_DecoderInfo **i; | |
| 7616 const char **ext; | |
| 7617 FILE* stream = stdout; | |
| 7618 | |
| 7619 | |
| 7620 fprintf(stream, "SDL_sound Information:\n"); | |
| 7621 | |
| 7622 SOUND_VERSION(&sound_compile_version); | |
| 7623 fprintf(stream, "\tCompiled with SDL_sound version: %d.%d.%d\n", | |
| 7624 sound_compile_version.major, | |
| 7625 sound_compile_version.minor, | |
| 7626 sound_compile_version.patch); | |
| 7627 | |
| 7628 Sound_GetLinkedVersion(&sound_link_version); | |
| 7629 fprintf(stream, "\tRunning (linked) with SDL_sound version: %d.%d.%d\n", | |
| 7630 sound_link_version.major, | |
| 7631 sound_link_version.minor, | |
| 7632 sound_link_version.patch); | |
| 7633 | |
| 7634 fprintf(stream, "Supported sound formats:\n"); | |
| 7635 if (rc == NULL) | |
| 7636 fprintf(stream, " * Apparently, NONE!\n"); | |
| 7637 else | |
| 7638 { | |
| 7639 for (i = rc; *i != NULL; i++) | |
| 7640 { | |
| 7641 fprintf(stream, " * %s\n", (*i)->description); | |
| 7642 | |
| 7643 for (ext = (*i)->extensions; *ext != NULL; ext++) | |
| 7644 fprintf(stream, " File extension \"%s\"\n", *ext); | |
| 7645 | |
| 7646 fprintf(stream, " Written by %s.\n %s\n\n", | |
| 7647 (*i)->author, (*i)->url); | |
| 7648 } /* for */ | |
| 7649 } /* else */ | |
| 7650 | |
| 7651 fprintf(stream, "\n"); | |
| 7652 } | |
| 7653 | |
|
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|
7654 void ALmixer_OutputOpenALInfo() |
|
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|
7655 { |
|
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|
7656 ALmixer_version mixer_compile_version; |
|
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|
7657 const ALmixer_version * mixer_link_version=ALmixer_GetLinkedVersion(); |
| 0 | 7658 FILE* stream = stdout; |
| 7659 | |
| 7660 fprintf(stream, "OpenAL Information:\n"); | |
| 7661 fprintf(stream, "\tAL_VENDOR: %s\n", alGetString( AL_VENDOR ) ); | |
| 7662 fprintf(stream, "\tAL_VERSION: %s\n", alGetString( AL_VERSION ) ); | |
| 7663 fprintf(stream, "\tAL_RENDERER: %s\n", alGetString( AL_RENDERER ) ); | |
| 7664 fprintf(stream, "\tAL_EXTENSIONS: %s\n", alGetString( AL_EXTENSIONS ) ); | |
| 7665 | |
|
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|
7666 ALMIXER_GET_COMPILED_VERSION(&mixer_compile_version); |
| 0 | 7667 fprintf(stream, "\nSDL_ALmixer Information:\n"); |
| 7668 fprintf(stream, "\tCompiled with SDL_ALmixer version: %d.%d.%d\n", | |
| 7669 mixer_compile_version.major, | |
| 7670 mixer_compile_version.minor, | |
| 7671 mixer_compile_version.patch); | |
| 7672 | |
| 7673 fprintf(stream, "\tRunning (linked) with SDL_ALmixer version: %d.%d.%d\n", | |
| 7674 mixer_link_version->major, | |
| 7675 mixer_link_version->minor, | |
| 7676 mixer_link_version->patch); | |
| 7677 | |
| 7678 fprintf(stream, "\tCompile flags: "); | |
| 7679 #ifdef ENABLE_LOKI_QUEUE_FIX_HACK | |
| 7680 fprintf(stream, "ENABLE_LOKI_QUEUE_FIX_HACK "); | |
| 7681 #endif | |
| 7682 #ifdef ENABLE_ALMIXER_THREADS | |
| 7683 fprintf(stream, "ENABLE_ALMIXER_THREADS "); | |
| 7684 #endif | |
| 7685 #ifdef ENABLE_ALC_SYNC | |
| 7686 fprintf(stream, "ENABLE_ALC_SYNC "); | |
| 7687 #endif | |
| 7688 fprintf(stream, "\n"); | |
| 7689 } | |
| 7690 | |
| 7691 | |
|
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|
7692 ALint ALmixer_AllocateChannels(ALint numchans) |
|
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|
7693 { |
|
27
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|
7694 if(0 == ALmixer_Initialized) |
|
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|
7695 { |
|
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|
7696 return -1; |
|
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|
7697 } |
|
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|
7698 |
|
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|
7699 ALint retval; |
|
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|
7700 #ifdef ENABLE_ALMIXER_THREADS |
|
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|
7701 SDL_LockMutex(s_simpleLock); |
|
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|
7702 #endif |
| 0 | 7703 retval = Internal_AllocateChannels(numchans); |
|
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|
7704 #ifdef ENABLE_ALMIXER_THREADS |
|
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|
7705 SDL_UnlockMutex(s_simpleLock); |
|
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|
7706 #endif |
| 0 | 7707 return retval; |
| 7708 } | |
| 7709 | |
| 7710 | |
|
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|
7711 ALint ALmixer_ReserveChannels(ALint num) |
|
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|
7712 { |
|
27
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|
7713 if(0 == ALmixer_Initialized) |
|
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|
7714 { |
|
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|
7715 return -1; |
|
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|
7716 } |
|
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|
7717 |
|
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|
7718 ALint retval; |
|
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|
7719 #ifdef ENABLE_ALMIXER_THREADS |
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|
7720 SDL_LockMutex(s_simpleLock); |
|
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|
7721 #endif |
| 0 | 7722 retval = Internal_ReserveChannels(num); |
|
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7723 #ifdef ENABLE_ALMIXER_THREADS |
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7724 SDL_UnlockMutex(s_simpleLock); |
|
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|
7725 #endif |
| 0 | 7726 return retval; |
| 7727 } | |
| 7728 | |
| 7729 | |
| 7730 | |
| 7731 | |
|
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|
7732 static ALmixer_Data* DoLoad(Sound_Sample* sample, ALuint buffersize, ALboolean decode_mode_is_predecoded, ALuint max_queue_buffers, ALuint num_startup_buffers, ALboolean access_data) |
|
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|
7733 { |
|
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|
7734 ALuint bytes_decoded; |
| 0 | 7735 ALmixer_Data* ret_data; |
| 7736 ALenum error; | |
| 7737 | |
| 7738 /* Allocate memory */ | |
| 7739 ret_data = (ALmixer_Data *)malloc(sizeof(ALmixer_Data)); | |
| 7740 if (NULL == ret_data) | |
| 7741 { | |
| 7742 ALmixer_SetError("Out of memory"); | |
| 7743 return(NULL); | |
| 7744 } | |
| 7745 | |
| 7746 /* Initialize the data fields */ | |
| 7747 | |
| 7748 /* Set the Sound_Sample pointer */ | |
| 7749 ret_data->sample = sample; | |
| 7750 | |
| 7751 /* Flag the data to note that it is not in use */ | |
| 7752 ret_data->in_use = 0; | |
| 7753 | |
| 7754 /* Initialize remaining flags */ | |
| 7755 ret_data->total_time = -1; | |
| 7756 ret_data->eof = 0; | |
| 7757 | |
| 7758 /* Just initialize */ | |
| 7759 ret_data->num_buffers_in_use = 0; | |
| 7760 | |
| 7761 /* Just initialize */ | |
| 7762 ret_data->total_bytes = 0; | |
| 7763 | |
| 7764 /* Just initialize */ | |
| 7765 ret_data->loaded_bytes = 0; | |
| 7766 | |
| 7767 /* Set the max queue buffers (minimum must be 2) */ | |
| 7768 if(max_queue_buffers < 2) | |
| 7769 { | |
| 7770 max_queue_buffers = ALMIXER_DEFAULT_QUEUE_BUFFERS; | |
| 7771 } | |
| 7772 ret_data->max_queue_buffers = max_queue_buffers; | |
| 7773 /* Set up the start up buffers */ | |
| 7774 if(0 == num_startup_buffers) | |
| 7775 { | |
| 7776 num_startup_buffers = ALMIXER_DEFAULT_STARTUP_BUFFERS; | |
| 7777 } | |
| 7778 /* Make sure start up buffers is less or equal to max_queue_buffers */ | |
| 7779 if(num_startup_buffers > max_queue_buffers) | |
| 7780 { | |
| 7781 num_startup_buffers = max_queue_buffers; | |
| 7782 } | |
| 7783 ret_data->num_startup_buffers = num_startup_buffers; | |
| 7784 | |
| 7785 ret_data->buffer_map_list = NULL; | |
| 7786 ret_data->current_buffer = 0; | |
| 7787 | |
| 7788 ret_data->circular_buffer_queue = NULL; | |
| 7789 | |
| 7790 /* Now decode and load the data into a data chunk */ | |
| 7791 /* Different cases for Streamed and Predecoded | |
| 7792 * Streamed might turn into a predecoded if buffersize | |
| 7793 * is large enough */ | |
|
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|
7794 if(AL_FALSE == decode_mode_is_predecoded) |
| 0 | 7795 { |
| 7796 bytes_decoded = Sound_Decode(sample); | |
| 7797 if(sample->flags & SOUND_SAMPLEFLAG_ERROR) | |
| 7798 { | |
| 7799 ALmixer_SetError(Sound_GetError()); | |
| 7800 Sound_FreeSample(sample); | |
| 7801 free(ret_data); | |
| 7802 return NULL; | |
| 7803 } | |
| 7804 | |
| 7805 /* If no data, return an error */ | |
| 7806 if(0 == bytes_decoded) | |
| 7807 { | |
| 7808 ALmixer_SetError("File has no data"); | |
| 7809 Sound_FreeSample(sample); | |
| 7810 free(ret_data); | |
| 7811 return NULL; | |
| 7812 } | |
| 7813 | |
| 7814 /* Note, currently, my Ogg conservative modifications | |
| 7815 * prevent EOF from being detected in the first read | |
| 7816 * because of the weird packet behavior of ov_read(). | |
| 7817 * The EAGAIN will get set, but not the EOF. | |
| 7818 * I don't know the best way to handle this, | |
| 7819 * so for now, Ogg's can only be explicitly | |
| 7820 * predecoded. | |
| 7821 */ | |
| 7822 | |
| 7823 /* Correction: Since we no longer actually keep the | |
| 7824 * streamed data we read here (we rewind and throw | |
| 7825 * it away, and start over on Play), it is | |
| 7826 * safe to read another chunk to see if we've hit EOF | |
| 7827 */ | |
| 7828 if(sample->flags & SOUND_SAMPLEFLAG_EAGAIN) | |
| 7829 { | |
| 7830 bytes_decoded = Sound_Decode(sample); | |
| 7831 if(sample->flags & SOUND_SAMPLEFLAG_ERROR) | |
| 7832 { | |
| 7833 ALmixer_SetError(Sound_GetError()); | |
| 7834 Sound_FreeSample(sample); | |
| 7835 free(ret_data); | |
| 7836 return NULL; | |
| 7837 } | |
| 7838 } | |
| 7839 | |
| 7840 | |
| 7841 /* If we found an EOF, the entire file was | |
| 7842 * decoded, so we can treat it like one. | |
| 7843 */ | |
| 7844 | |
| 7845 if(sample->flags & SOUND_SAMPLEFLAG_EOF) | |
| 7846 { | |
|
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|
7847 /* |
| 0 | 7848 fprintf(stderr, "We got LUCKY! File is predecoded even though STREAM was requested\n"); |
|
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|
7849 */ |
| 0 | 7850 ret_data->decoded_all = 1; |
| 7851 /* Need to keep this information around for | |
| 7852 * seek and rewind abilities. | |
| 7853 */ | |
| 7854 ret_data->total_bytes = bytes_decoded; | |
| 7855 /* For now, the loaded bytes is the same as total bytes, but | |
| 7856 * this could change during a seek operation | |
| 7857 */ | |
| 7858 ret_data->loaded_bytes = bytes_decoded; | |
| 7859 | |
| 7860 /* Let's compute the total playing time | |
| 7861 * SDL_sound does not yet provide this (we're working on | |
| 7862 * that at the moment...) | |
| 7863 */ | |
| 7864 ret_data->total_time = Compute_Total_Time(&sample->desired, bytes_decoded); | |
| 7865 | |
| 7866 /* Create one element in the buffer array for data for OpanAL */ | |
| 7867 ret_data->buffer = (ALuint*)malloc( sizeof(ALuint) ); | |
| 7868 if(NULL == ret_data->buffer) | |
| 7869 { | |
| 7870 ALmixer_SetError("Out of Memory"); | |
| 7871 Sound_FreeSample(sample); | |
| 7872 free(ret_data); | |
| 7873 return NULL; | |
| 7874 } | |
| 7875 /* Clear the error code */ | |
| 7876 alGetError(); | |
| 7877 /* Now generate an OpenAL buffer using that first element */ | |
| 7878 alGenBuffers(1, ret_data->buffer); | |
| 7879 if( (error = alGetError()) != AL_NO_ERROR) | |
| 7880 { | |
|
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|
7881 ALmixer_SetError("alGenBuffers failed: %s\n", alGetString(error)); |
| 0 | 7882 Sound_FreeSample(sample); |
| 7883 free(ret_data->buffer); | |
| 7884 free(ret_data); | |
| 7885 return NULL; | |
| 7886 } | |
| 7887 | |
| 7888 | |
| 7889 /* Now copy the data to the OpenAL buffer */ | |
| 7890 /* We can't just set a pointer because the API needs | |
| 7891 * its own copy to assist hardware acceleration */ | |
| 7892 alBufferData(ret_data->buffer[0], | |
| 7893 TranslateFormat(&sample->desired), | |
| 7894 sample->buffer, | |
| 7895 bytes_decoded, | |
| 7896 sample->desired.rate | |
| 7897 ); | |
| 7898 if( (error = alGetError()) != AL_NO_ERROR) | |
| 7899 { | |
|
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|
7900 ALmixer_SetError("alBufferData failed: %s\n", alGetString(error)); |
| 0 | 7901 Sound_FreeSample(sample); |
| 7902 alDeleteBuffers(1, ret_data->buffer); | |
| 7903 free(ret_data->buffer); | |
| 7904 free(ret_data); | |
| 7905 return NULL; | |
| 7906 } | |
| 7907 | |
| 7908 /* We should be done with the sample since it's all | |
| 7909 * predecoded. So we can free the memory */ | |
| 7910 | |
| 7911 /* Additional notes: | |
| 7912 * We need to keep data around in case Seek() is needed | |
| 7913 * or other Sound_AudioInfo is needed. | |
| 7914 * This can either be done by not deleting the sample, | |
| 7915 * or it can be done by dynamically recreating it | |
| 7916 * when we need it. | |
| 7917 */ | |
| 7918 /* Since OpenAL won't let us retrieve it | |
| 7919 * (aka dynamically), we have to keep the Sample | |
| 7920 * around because since the user requested | |
| 7921 * streamed and we offered predecoded, | |
| 7922 * we don't want to mess up the user who | |
| 7923 * was expecting seek support | |
| 7924 * So Don't Do anything | |
| 7925 */ | |
| 7926 /* | |
| 7927 if(0 == access_data) | |
| 7928 { | |
| 7929 Sound_FreeSample(sample); | |
| 7930 ret_data->sample = NULL; | |
| 7931 } | |
| 7932 */ | |
| 7933 /* Else, We keep a copy of the sample around. | |
| 7934 * so don't do anything. | |
| 7935 */ | |
| 7936 | |
| 7937 #if 0 | |
| 7938 #if defined(DISABLE_PREDECODED_SEEK) | |
| 7939 Sound_FreeSample(sample); | |
| 7940 ret_data->sample = NULL; | |
| 7941 #elif !defined(DISABLE_SEEK_MEMORY_OPTIMIZATION) | |
| 7942 Sound_FreeSample(sample); | |
| 7943 ret_data->sample = NULL; | |
| 7944 #else | |
| 7945 /* We keep a copy of the sample around. | |
| 7946 * so don't do anything. | |
| 7947 */ | |
| 7948 #endif | |
| 7949 #endif | |
| 7950 /* okay we're done here */ | |
| 7951 | |
| 7952 } | |
| 7953 /* Else, we need to stream the data, so we'll | |
| 7954 * create multple buffers for queuing */ | |
| 7955 else | |
| 7956 { | |
|
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|
7957 /* |
| 0 | 7958 fprintf(stderr, "Loading streamed data (not lucky)\n"); |
|
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|
7959 */ |
| 0 | 7960 ret_data->decoded_all = 0; |
| 7961 | |
| 7962 /* This information is for predecoded. | |
| 7963 * Set to 0, since we don't know. | |
| 7964 */ | |
| 7965 ret_data->total_bytes = 0; | |
| 7966 | |
|
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|
7967 ret_data->total_time = Sound_GetDuration(sample); |
|
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|
7968 |
| 0 | 7969 /* Create buffers for data |
| 7970 */ | |
| 7971 ret_data->buffer = (ALuint*)malloc( sizeof(ALuint) * max_queue_buffers); | |
| 7972 if(NULL == ret_data->buffer) | |
| 7973 { | |
| 7974 ALmixer_SetError("Out of Memory"); | |
| 7975 Sound_FreeSample(sample); | |
| 7976 free(ret_data); | |
| 7977 return NULL; | |
| 7978 } | |
| 7979 | |
| 7980 /* Clear the error code */ | |
| 7981 alGetError(); | |
| 7982 /* Now generate an OpenAL buffer using that first element */ | |
| 7983 alGenBuffers(max_queue_buffers, ret_data->buffer); | |
| 7984 if( (error = alGetError()) != AL_NO_ERROR) | |
| 7985 { | |
|
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|
7986 ALmixer_SetError("alGenBuffers failed: %s\n", alGetString(error)); |
| 0 | 7987 Sound_FreeSample(sample); |
| 7988 free(ret_data->buffer); | |
| 7989 free(ret_data); | |
| 7990 return NULL; | |
| 7991 } | |
| 7992 | |
| 7993 /* Redesign: Okay, because of the unqueuing problems and such, | |
| 7994 * I've decided to redesign where and how queuing is handled. | |
| 7995 * Before, everything was queued up here. However, this | |
| 7996 * placed a penalty on load and made performance inconsistent | |
| 7997 * when samples had to be rewound. It did make things easier | |
| 7998 * to queue because I could let OpenAL decide which buffer | |
| 7999 * needed to be queued next. | |
| 8000 * Now, I'm going to push off the queuing to the actual | |
| 8001 * Play() command. I'm going to add some book keeping, | |
| 8002 * and allow for additional buffers to be filled at later | |
| 8003 * times. | |
| 8004 */ | |
| 8005 | |
| 8006 | |
| 8007 /* So first of all, because of I already decoded the sample | |
| 8008 * for testing, I need to decide what to do with it. | |
| 8009 * The best thing would be be to alBufferData() it. | |
| 8010 * The problem is it may conflict with the rest of | |
| 8011 * the system because everything now assumes buffers | |
| 8012 * are entirely stripped (because of the unqueing | |
| 8013 * problem). | |
| 8014 * So it looks like I have to do the crappy thing | |
| 8015 * and throw away the data, and rewind. | |
| 8016 */ | |
| 8017 | |
| 8018 if(0 == Sound_Rewind(ret_data->sample)) | |
| 8019 { | |
| 8020 ALmixer_SetError("Cannot use sample for streamed data because it must be rewindable: %s", Sound_GetError() ); | |
| 8021 Sound_FreeSample(sample); | |
| 8022 free(ret_data->buffer); | |
| 8023 free(ret_data); | |
| 8024 return NULL; | |
| 8025 } | |
| 8026 | |
| 8027 | |
| 8028 /* If the user has selected access_data, we need to | |
| 8029 * keep copies of the queuing buffers around because | |
| 8030 * OpenAL won't let us access the data. | |
| 8031 * Allocate the memory for the buffers here | |
| 8032 * and initialize the albuffer-index map | |
| 8033 */ | |
| 8034 if(access_data) | |
| 8035 { | |
|
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|
8036 ALuint j; |
| 0 | 8037 /* Create buffers for data access |
| 8038 * Should be the same number as the number of queue buffers | |
| 8039 */ | |
| 1 | 8040 ret_data->buffer_map_list = (ALmixer_Buffer_Map*)malloc( sizeof(ALmixer_Buffer_Map) * max_queue_buffers); |
| 0 | 8041 if(NULL == ret_data->buffer_map_list) |
| 8042 { | |
| 8043 ALmixer_SetError("Out of Memory"); | |
| 8044 Sound_FreeSample(sample); | |
| 8045 free(ret_data->buffer); | |
| 8046 free(ret_data); | |
| 8047 return NULL; | |
| 8048 } | |
| 8049 | |
| 8050 ret_data->circular_buffer_queue = CircularQueueUnsignedInt_CreateQueue(max_queue_buffers); | |
| 8051 if(NULL == ret_data->circular_buffer_queue) | |
| 8052 { | |
| 8053 ALmixer_SetError("Out of Memory"); | |
| 8054 free(ret_data->buffer_map_list); | |
| 8055 Sound_FreeSample(sample); | |
| 8056 free(ret_data->buffer); | |
| 8057 free(ret_data); | |
| 8058 return NULL; | |
| 8059 } | |
| 8060 | |
| 8061 | |
| 8062 for(j=0; j<max_queue_buffers; j++) | |
| 8063 { | |
| 8064 ret_data->buffer_map_list[j].albuffer = ret_data->buffer[j]; | |
| 8065 ret_data->buffer_map_list[j].index = j; | |
| 8066 ret_data->buffer_map_list[j].num_bytes = 0; | |
|
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8067 ret_data->buffer_map_list[j].data = (ALbyte*)malloc( sizeof(ALbyte) * buffersize); |
| 0 | 8068 if(NULL == ret_data->buffer_map_list[j].data) |
| 8069 { | |
| 8070 ALmixer_SetError("Out of Memory"); | |
| 8071 break; | |
| 8072 } | |
| 8073 } | |
| 8074 /* If an error happened, we have to clean up the memory */ | |
| 8075 if(j < max_queue_buffers) | |
| 8076 { | |
| 8077 fprintf(stderr, "################## Buffer allocation failed\n"); | |
| 8078 for( ; j>=0; j--) | |
| 8079 { | |
| 8080 free(ret_data->buffer_map_list[j].data); | |
| 8081 } | |
| 8082 free(ret_data->buffer_map_list); | |
| 8083 CircularQueueUnsignedInt_FreeQueue(ret_data->circular_buffer_queue); | |
| 8084 Sound_FreeSample(sample); | |
| 8085 free(ret_data->buffer); | |
| 8086 free(ret_data); | |
| 8087 return NULL; | |
| 8088 } | |
| 8089 | |
| 8090 /* The Buffer_Map_List must be sorted by albuffer for binary searches | |
| 8091 */ | |
| 1 | 8092 qsort(ret_data->buffer_map_list, max_queue_buffers, sizeof(ALmixer_Buffer_Map), Compare_Buffer_Map); |
| 0 | 8093 } /* End if access_data==true */ |
| 8094 | |
| 8095 | |
| 8096 } /* End of do stream */ | |
| 8097 } /* end of DECODE_STREAM */ | |
| 8098 /* User requested decode all (easy, nothing to figure out) */ | |
|
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8099 else if(AL_TRUE == decode_mode_is_predecoded) |
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8100 { |
|
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8101 #ifdef ALMIXER_DISABLE_PREDECODED_PRECOMPUTE_BUFFER_SIZE_OPTIMIZATION |
|
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8102 /* SDL_sound (behind the scenes) seems to loop on buffer_size chunks |
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8103 * until the buffer is filled. It seems like we can |
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8104 * do much better and precompute the size of the buffer |
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|
8105 * so looping isn't needed. |
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|
8106 * WARNING: Due to the way SDL_sound is currently implemented, |
|
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8107 * this may waste a lot of memory up front. |
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8108 * SDL_sound seems to pre-create a buffer of the requested size, |
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8109 * but on DecodeAll, an entirely new buffer is created and |
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8110 * everything is memcpy'd into the new buffer in read chunks |
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8111 * of the buffer_size. This means we need roughly twice the memory |
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8112 * to load a file. |
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|
8113 */ |
|
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|
8114 ALint sound_duration = Sound_GetDuration(sample); |
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8115 if(sound_duration > 0) |
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8116 { |
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|
8117 size_t total_bytes = Compute_Total_Bytes_With_Frame_Padding(&sample->desired, (ALuint)sound_duration); |
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8118 int buffer_resize_succeeded = Sound_SetBufferSize(sample, total_bytes); |
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|
8119 if(0 == buffer_resize_succeeded) |
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8120 { |
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|
8121 ALmixer_SetError(Sound_GetError()); |
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8122 Sound_FreeSample(sample); |
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|
8123 free(ret_data); |
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|
8124 return NULL; |
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|
8125 } |
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|
8126 } |
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|
8127 #endif /* ALMIXER_DISABLE_PREDECODED_PRECOMPUTE_BUFFER_SIZE_OPTIMIZATION */ |
| 0 | 8128 bytes_decoded = Sound_DecodeAll(sample); |
| 8129 if(sample->flags & SOUND_SAMPLEFLAG_ERROR) | |
| 8130 { | |
| 8131 ALmixer_SetError(Sound_GetError()); | |
| 8132 Sound_FreeSample(sample); | |
| 8133 free(ret_data); | |
| 8134 return NULL; | |
| 8135 } | |
| 8136 | |
| 8137 /* If no data, return an error */ | |
| 8138 if(0 == bytes_decoded) | |
| 8139 { | |
| 8140 ALmixer_SetError("File has no data"); | |
| 8141 Sound_FreeSample(sample); | |
| 8142 free(ret_data); | |
| 8143 return NULL; | |
| 8144 } | |
| 8145 | |
| 8146 | |
| 8147 ret_data->decoded_all = 1; | |
| 8148 /* Need to keep this information around for | |
| 8149 * seek and rewind abilities. | |
| 8150 */ | |
| 8151 ret_data->total_bytes = bytes_decoded; | |
| 8152 /* For now, the loaded bytes is the same as total bytes, but | |
| 8153 * this could change during a seek operation | |
| 8154 */ | |
| 8155 ret_data->loaded_bytes = bytes_decoded; | |
| 8156 | |
| 8157 /* Let's compute the total playing time | |
| 8158 * SDL_sound does not yet provide this (we're working on | |
| 8159 * that at the moment...) | |
| 8160 */ | |
| 8161 ret_data->total_time = Compute_Total_Time(&sample->desired, bytes_decoded); | |
| 8162 | |
| 8163 /* Create one element in the buffer array for data for OpanAL */ | |
| 8164 ret_data->buffer = (ALuint*)malloc( sizeof(ALuint) ); | |
| 8165 if(NULL == ret_data->buffer) | |
| 8166 { | |
| 8167 ALmixer_SetError("Out of Memory"); | |
| 8168 Sound_FreeSample(sample); | |
| 8169 free(ret_data); | |
| 8170 return NULL; | |
| 8171 } | |
| 8172 /* Clear the error code */ | |
| 8173 alGetError(); | |
| 8174 /* Now generate an OpenAL buffer using that first element */ | |
| 8175 alGenBuffers(1, ret_data->buffer); | |
| 8176 if( (error = alGetError()) != AL_NO_ERROR) | |
| 8177 { | |
|
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|
8178 ALmixer_SetError("alGenBuffers failed: %s\n", alGetString(error)); |
| 0 | 8179 Sound_FreeSample(sample); |
| 8180 free(ret_data->buffer); | |
| 8181 free(ret_data); | |
| 8182 return NULL; | |
| 8183 } | |
|
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|
8184 /* |
| 0 | 8185 fprintf(stderr, "Actual rate=%d, desired=%d\n", sample->actual.rate, sample->desired.rate); |
|
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|
8186 */ |
| 0 | 8187 /* Now copy the data to the OpenAL buffer */ |
| 8188 /* We can't just set a pointer because the API needs | |
| 8189 * its own copy to assist hardware acceleration */ | |
| 8190 alBufferData(ret_data->buffer[0], | |
| 8191 TranslateFormat(&sample->desired), | |
| 8192 sample->buffer, | |
| 8193 bytes_decoded, | |
| 8194 sample->desired.rate | |
| 8195 ); | |
| 8196 if( (error = alGetError()) != AL_NO_ERROR) | |
| 8197 { | |
|
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parents:
1
diff
changeset
|
8198 ALmixer_SetError("alBufferData failed: %s\n", alGetString(error)); |
| 0 | 8199 Sound_FreeSample(sample); |
| 8200 alDeleteBuffers(1, ret_data->buffer); | |
| 8201 free(ret_data->buffer); | |
| 8202 free(ret_data); | |
| 8203 return NULL; | |
| 8204 } | |
| 8205 | |
| 8206 /* We should be done with the sample since it's all | |
| 8207 * predecoded. So we can free the memory */ | |
| 8208 /* Need to keep around because Seek() needs it */ | |
| 8209 | |
| 8210 /* Additional notes: | |
| 8211 * We need to keep data around in case Seek() is needed | |
| 8212 * or other Sound_AudioInfo is needed. | |
| 8213 * This can either be done by not deleting the sample, | |
| 8214 * or it can be done by dynamically recreating it | |
| 8215 * when we need it. | |
| 8216 * Update: I think now it's up to the user by passing the | |
| 8217 * access_data flag. If they set the flag, then they get | |
| 8218 * data callbacks and seek support. If not, then they can | |
| 8219 * get all that stuff at the expense of keeping extra memory | |
| 8220 * around. | |
| 8221 */ | |
| 8222 if(0 == access_data) | |
| 8223 { | |
| 8224 Sound_FreeSample(sample); | |
| 8225 ret_data->sample = NULL; | |
| 8226 } | |
| 8227 | |
| 8228 /* Else, We keep a copy of the sample around. | |
| 8229 * so don't do anything. | |
| 8230 */ | |
| 8231 #if 0 | |
| 8232 #if defined(DISABLE_PREDECODED_SEEK) | |
| 8233 Sound_FreeSample(sample); | |
| 8234 ret_data->sample = NULL; | |
| 8235 #elif !defined(DISABLE_SEEK_MEMORY_OPTIMIZATION) | |
| 8236 Sound_FreeSample(sample); | |
| 8237 ret_data->sample = NULL; | |
| 8238 #else | |
| 8239 /* We keep a copy of the sample around. | |
| 8240 * so don't do anything. | |
| 8241 */ | |
| 8242 #endif | |
| 8243 #endif | |
| 8244 | |
| 8245 /* okay we're done here */ | |
| 8246 } | |
| 8247 else | |
| 8248 { | |
| 8249 /* Shouldn't get here */ | |
| 8250 ALmixer_SetError("Unknown decode mode"); | |
| 8251 Sound_FreeSample(sample); | |
| 8252 free(ret_data); | |
| 8253 return NULL; | |
| 8254 } | |
| 8255 | |
|
13
54aa96ae8912
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
8256 /* Add the ALmixerData to an internal linked list so we can delete it on |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
8257 * quit and avoid messy dangling issues with Sound_Quit |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
8258 */ |
|
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
8259 LinkedList_PushBack(s_listOfALmixerData, ret_data); |
| 0 | 8260 return ret_data; |
| 8261 } | |
| 8262 | |
| 8263 | |
| 8264 /* This will load a sample for us. Most of the uglyness is | |
| 8265 * error checking and the fact that streamed/predecoded files | |
| 8266 * must be treated differently. | |
| 8267 * I don't like the AudioInfo parameter. I removed it once, | |
| 8268 * but the system will fail on RAW samples because the user | |
| 8269 * must specify it, so I had to bring it back. | |
| 8270 * Remember I must close the rwops if there is an error before NewSample() | |
| 8271 */ | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
8272 ALmixer_Data* ALmixer_LoadSample_RW(ALmixer_RWops* rwops, const char* fileext, ALuint buffersize, ALboolean decode_mode_is_predecoded, ALuint max_queue_buffers, ALuint num_startup_buffers, ALboolean access_data) |
| 0 | 8273 { |
| 8274 Sound_Sample* sample = NULL; | |
| 8275 Sound_AudioInfo target; | |
| 8276 | |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8277 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8278 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8279 return NULL; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8280 } |
|
9cf93a099f75
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8281 |
| 0 | 8282 /* Initialize target values to defaults |
| 8283 * 0 tells SDL_sound to use the "actual" values | |
| 8284 */ | |
| 8285 target.channels = 0; | |
| 8286 target.rate = 0; | |
| 8287 #if 0 | |
| 8288 /* This requires my new additions to SDL_sound. It will | |
| 8289 * convert the sample to the proper endian order. | |
| 8290 * If the actual is 8-bit, it will do unsigned, if | |
| 8291 * the actual is 16-bit, it will do signed. | |
| 8292 * I'm told by Ryan Gordon that OpenAL prefers the signedness | |
| 8293 * in this way. | |
| 8294 */ | |
| 8295 target.format = AUDIO_U8S16SYS; | |
| 8296 #else | |
| 8297 target.format = AUDIO_S16SYS; | |
| 8298 #endif | |
| 8299 | |
| 8300 /* Set a default buffersize if needed */ | |
| 8301 if(0 == buffersize) | |
| 8302 { | |
| 8303 buffersize = ALMIXER_DEFAULT_BUFFERSIZE; | |
| 8304 } | |
| 8305 | |
| 8306 sample = Sound_NewSample(rwops, fileext, &target, buffersize); | |
| 8307 if(NULL == sample) | |
| 8308 { | |
| 8309 ALmixer_SetError(Sound_GetError()); | |
| 8310 return NULL; | |
| 8311 } | |
| 8312 | |
| 1 | 8313 return( DoLoad(sample, buffersize, decode_mode_is_predecoded, max_queue_buffers, num_startup_buffers, access_data)); |
| 0 | 8314 } |
| 8315 | |
| 8316 | |
| 8317 | |
| 8318 /* This will load a sample for us from | |
| 8319 * a file (instead of RWops). Most of the uglyness is | |
| 8320 * error checking and the fact that streamed/predecoded files | |
| 8321 * must be treated differently. | |
| 8322 */ | |
|
2
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Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
8323 ALmixer_Data* ALmixer_LoadSample(const char* filename, ALuint buffersize, ALboolean decode_mode_is_predecoded, ALuint max_queue_buffers, ALuint num_startup_buffers, ALboolean access_data) |
| 0 | 8324 { |
| 8325 Sound_Sample* sample = NULL; | |
| 8326 Sound_AudioInfo target; | |
| 8327 | |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8328 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8329 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8330 return NULL; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8331 } |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8332 |
| 0 | 8333 /* Initialize target values to defaults |
| 8334 * 0 tells SDL_sound to use the "actual" values | |
| 8335 */ | |
| 8336 target.channels = 0; | |
| 8337 target.rate = 0; | |
| 8338 | |
| 8339 #if 0 | |
| 8340 /* This requires my new additions to SDL_sound. It will | |
| 8341 * convert the sample to the proper endian order. | |
| 8342 * If the actual is 8-bit, it will do unsigned, if | |
| 8343 * the actual is 16-bit, it will do signed. | |
| 8344 * I'm told by Ryan Gordon that OpenAL prefers the signedness | |
| 8345 * in this way. | |
| 8346 */ | |
| 8347 target.format = AUDIO_U8S16SYS; | |
| 8348 #else | |
| 8349 target.format = AUDIO_S16SYS; | |
| 8350 #endif | |
| 8351 | |
| 8352 #if 0 | |
| 8353 /* Okay, here's a messy hack. The problem is that we need | |
| 8354 * to convert the sample to have the correct bitdepth, | |
| 8355 * endian order, and signedness values. | |
| 8356 * The bit depth is 8 or 16. | |
| 8357 * The endian order is the native order of the system. | |
| 8358 * The signedness depends on what the original value | |
| 8359 * of the sample. Unfortunately, we can't specify these | |
| 8360 * values until we after we already know what the original | |
| 8361 * values were for bitdepth and signedness. | |
| 8362 * So we must open the file once to get the values, | |
| 8363 * then close it, and then reopen it with the | |
| 8364 * correct desired target values. | |
| 8365 * I tried changing the sample->desired field after | |
| 8366 * the NewSample call, but it had no effect, so | |
| 8367 * it looks like it must be set on open. | |
| 8368 */ | |
| 8369 /* Pick a small buffersize for the first open to not | |
| 8370 * waste much time allocating memory */ | |
| 8371 sample = Sound_NewSampleFromFile(filename, NULL, 512); | |
| 8372 if(NULL == sample) | |
| 8373 { | |
| 8374 ALmixer_SetError(Sound_GetError()); | |
| 8375 return NULL; | |
| 8376 } | |
| 8377 | |
| 8378 bit_depth = GetBitDepth(sample->actual.format); | |
| 8379 signedness_value = GetSignednessValue(sample->actual.format); | |
| 8380 if(8 == bit_depth) | |
| 8381 { | |
| 8382 /* If 8 bit, then we don't have to worry about | |
| 8383 * endian issues. We can just use the actual format | |
| 8384 * value and it should do the right thing | |
| 8385 */ | |
| 8386 target.format = sample->actual.format; | |
| 8387 } | |
| 8388 else | |
| 8389 { | |
| 8390 /* We'll assume it's 16-bit, and if it's not | |
| 8391 * hopefully SDL_sound will return an error, | |
| 8392 * or let us convert to 16-bit | |
| 8393 */ | |
| 8394 /* Now we need to get the correct signedness */ | |
| 8395 if(ALMIXER_UNSIGNED_VALUE == signedness_value) | |
| 8396 { | |
| 8397 /* Set to Unsigned 16-bit, system endian order */ | |
| 8398 target.format = AUDIO_U16SYS; | |
| 8399 } | |
| 8400 else | |
| 8401 { | |
| 8402 /* Again, we'll assume it's Signed 16-bit system order | |
| 8403 * or force the conversion and hope it works out | |
| 8404 */ | |
| 8405 target.format = AUDIO_S16SYS; | |
| 8406 } | |
| 8407 } | |
| 8408 | |
| 8409 /* Now we have the correct info. We need to close and reopen */ | |
| 8410 Sound_FreeSample(sample); | |
| 8411 #endif | |
| 8412 | |
| 8413 sample = Sound_NewSampleFromFile(filename, &target, buffersize); | |
| 8414 if(NULL == sample) | |
| 8415 { | |
| 8416 ALmixer_SetError(Sound_GetError()); | |
| 8417 return NULL; | |
| 8418 } | |
| 8419 | |
|
6
4b1048af7e55
Disabled some of the debugging printfs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
3
diff
changeset
|
8420 /* |
| 0 | 8421 fprintf(stderr, "Correction test: Actual rate=%d, desired=%d, actual format=%d, desired format=%d\n", sample->actual.rate, sample->desired.rate, sample->actual.format, sample->desired.format); |
|
6
4b1048af7e55
Disabled some of the debugging printfs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
3
diff
changeset
|
8422 */ |
| 1 | 8423 return( DoLoad(sample, buffersize, decode_mode_is_predecoded, max_queue_buffers, num_startup_buffers, access_data)); |
| 0 | 8424 } |
| 8425 | |
| 8426 | |
| 8427 /* This is a back door for RAW samples or if you need the | |
| 8428 * AudioInfo field. Use at your own risk. | |
| 8429 */ | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8430 ALmixer_Data* ALmixer_LoadSample_RAW_RW(ALmixer_RWops* rwops, const char* fileext, ALmixer_AudioInfo* desired, ALuint buffersize, ALboolean decode_mode_is_predecoded, ALuint max_queue_buffers, ALuint num_startup_buffers, ALboolean access_data) |
| 0 | 8431 { |
| 8432 Sound_Sample* sample = NULL; | |
| 1 | 8433 Sound_AudioInfo sound_desired; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8434 |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8435 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8436 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8437 return NULL; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8438 } |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8439 |
| 1 | 8440 /* Rather than copying the data from struct to struct, I could just |
| 8441 * cast the thing since the structs are meant to be identical. | |
| 8442 * But if SDL_sound changes it's implementation, bad things | |
| 8443 * will probably happen. (Or if I change my implementation and | |
| 8444 * forget about the cast, same bad scenario.) Since this is a load | |
| 8445 * function, performance of this is negligible. | |
| 8446 */ | |
| 8447 if(NULL == desired) | |
| 8448 { | |
| 8449 sample = Sound_NewSample(rwops, fileext, NULL, buffersize); | |
| 8450 } | |
| 8451 else | |
| 8452 { | |
| 8453 sound_desired.format = desired->format; | |
| 8454 sound_desired.channels = desired->channels; | |
| 8455 sound_desired.rate = desired->rate; | |
| 8456 sample = Sound_NewSample(rwops, fileext, &sound_desired, buffersize); | |
| 8457 } | |
| 0 | 8458 if(NULL == sample) |
| 8459 { | |
| 8460 ALmixer_SetError(Sound_GetError()); | |
| 8461 return NULL; | |
| 8462 } | |
| 1 | 8463 return( DoLoad(sample, buffersize, decode_mode_is_predecoded, max_queue_buffers, num_startup_buffers, access_data)); |
| 0 | 8464 } |
| 8465 | |
| 8466 | |
| 8467 | |
| 8468 | |
| 8469 /* This is a back door for RAW samples or if you need the | |
| 8470 * AudioInfo field. Use at your own risk. | |
| 8471 */ | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8472 ALmixer_Data* ALmixer_LoadSample_RAW(const char* filename, ALmixer_AudioInfo* desired, ALuint buffersize, ALboolean decode_mode_is_predecoded, ALuint max_queue_buffers, ALuint num_startup_buffers, ALboolean access_data) |
| 0 | 8473 { |
| 8474 Sound_Sample* sample = NULL; | |
| 1 | 8475 Sound_AudioInfo sound_desired; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8476 |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8477 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8478 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8479 return; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8480 } |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8481 |
| 1 | 8482 /* Rather than copying the data from struct to struct, I could just |
| 8483 * cast the thing since the structs are meant to be identical. | |
| 8484 * But if SDL_sound changes it's implementation, bad things | |
| 8485 * will probably happen. (Or if I change my implementation and | |
| 8486 * forget about the cast, same bad scenario.) Since this is a load | |
| 8487 * function, performance of this is negligible. | |
| 8488 */ | |
| 8489 if(NULL == desired) | |
| 8490 { | |
| 8491 sample = Sound_NewSampleFromFile(filename, NULL, buffersize); | |
| 8492 } | |
| 8493 else | |
| 8494 { | |
| 8495 sound_desired.format = desired->format; | |
| 8496 sound_desired.channels = desired->channels; | |
| 8497 sound_desired.rate = desired->rate; | |
| 8498 sample = Sound_NewSampleFromFile(filename, &sound_desired, buffersize); | |
| 8499 } | |
| 8500 | |
| 0 | 8501 if(NULL == sample) |
| 8502 { | |
| 8503 ALmixer_SetError(Sound_GetError()); | |
| 8504 return NULL; | |
| 8505 } | |
| 1 | 8506 return( DoLoad(sample, buffersize, decode_mode_is_predecoded, max_queue_buffers, num_startup_buffers, access_data)); |
| 0 | 8507 } |
| 8508 | |
| 8509 | |
| 8510 | |
| 8511 | |
| 8512 void ALmixer_FreeData(ALmixer_Data* data) | |
| 8513 { | |
| 8514 ALenum error; | |
| 8515 if(NULL == data) | |
| 8516 { | |
| 8517 return; | |
| 8518 } | |
|
22
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
8519 |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8520 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8521 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8522 return; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8523 } |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8524 |
|
22
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
8525 /* Bypass if in interruption event */ |
|
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
8526 if(NULL == alcGetCurrentContext()) |
|
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
8527 { |
|
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
8528 fprintf(stderr, "ALmixer_FreeData: Programmer Error. You cannot delete data when the OpenAL content is currently NULL. You may have already called ALmixer_Quit() or are in an interruption event\n"); |
|
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
8529 return; |
|
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
8530 } |
| 0 | 8531 |
| 8532 if(data->decoded_all) | |
| 8533 { | |
| 8534 /* If access_data was enabled, then the Sound_Sample* | |
| 8535 * still exists. We need to free it | |
| 8536 */ | |
| 8537 if(data->sample != NULL) | |
| 8538 { | |
| 8539 Sound_FreeSample(data->sample); | |
| 8540 } | |
| 8541 alDeleteBuffers(1, data->buffer); | |
|
22
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
8542 if((error = alGetError()) != AL_NO_ERROR) |
|
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
8543 { |
|
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
8544 fprintf(stderr, "ALmixer_FreeData: alDeleteBuffers failed. %s\n", alGetString(error)); |
|
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
8545 } |
| 0 | 8546 } |
| 8547 else | |
| 8548 { | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8549 ALuint i; |
| 0 | 8550 |
| 8551 /* Delete buffer copies if access_data was enabled */ | |
| 8552 if(data->buffer_map_list != NULL) | |
| 8553 { | |
| 8554 for(i=0; i<data->max_queue_buffers; i++) | |
| 8555 { | |
| 8556 free(data->buffer_map_list[i].data); | |
| 8557 } | |
| 8558 free(data->buffer_map_list); | |
| 8559 } | |
| 8560 if(data->circular_buffer_queue != NULL) | |
| 8561 { | |
| 8562 CircularQueueUnsignedInt_FreeQueue(data->circular_buffer_queue); | |
| 8563 } | |
| 8564 | |
| 8565 Sound_FreeSample(data->sample); | |
| 8566 alDeleteBuffers(data->max_queue_buffers, data->buffer); | |
|
22
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|
8567 if((error = alGetError()) != AL_NO_ERROR) |
|
58f03008ea05
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16
diff
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|
8568 { |
|
58f03008ea05
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16
diff
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|
8569 fprintf(stderr, "ALmixer_FreeData: alDeleteBuffers failed. %s\n", alGetString(error)); |
|
58f03008ea05
- Added Seek APIs
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diff
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|
8570 } |
| 0 | 8571 } |
| 8572 free(data->buffer); | |
|
13
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12
diff
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|
8573 |
|
54aa96ae8912
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12
diff
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|
8574 LinkedList_Remove(s_listOfALmixerData, |
|
54aa96ae8912
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12
diff
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|
8575 LinkedList_Find(s_listOfALmixerData, data, NULL) |
|
54aa96ae8912
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12
diff
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|
8576 ); |
|
54aa96ae8912
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Eric Wing <ewing . public |-at-| gmail . com>
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diff
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|
8577 |
| 0 | 8578 free(data); |
| 8579 } | |
| 8580 | |
|
2
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diff
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|
8581 ALint ALmixer_GetTotalTime(ALmixer_Data* data) |
|
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|
8582 { |
|
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diff
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|
8583 if(NULL == data) |
|
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diff
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|
8584 { |
|
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diff
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|
8585 return -1; |
|
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Overhaul prep for first public release.
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diff
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|
8586 } |
|
22
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diff
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|
8587 |
| 0 | 8588 return data->total_time; |
| 8589 } | |
| 8590 | |
| 8591 /* This function will look up the source for the corresponding channel */ | |
| 8592 /* Must return 0 on error instead of -1 because of unsigned int */ | |
|
2
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diff
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|
8593 ALuint ALmixer_GetSource(ALint channel) |
| 0 | 8594 { |
| 8595 ALuint retval; | |
|
27
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26
diff
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|
8596 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
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26
diff
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|
8597 { |
|
9cf93a099f75
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diff
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|
8598 return 0; |
|
9cf93a099f75
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26
diff
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|
8599 } |
|
2
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diff
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|
8600 #ifdef ENABLE_ALMIXER_THREADS |
|
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diff
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|
8601 SDL_LockMutex(s_simpleLock); |
|
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diff
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|
8602 #endif |
| 0 | 8603 retval = Internal_GetSource(channel); |
|
2
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diff
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|
8604 #ifdef ENABLE_ALMIXER_THREADS |
|
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diff
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|
8605 SDL_UnlockMutex(s_simpleLock); |
|
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diff
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|
8606 #endif |
| 0 | 8607 return retval; |
| 8608 } | |
| 8609 | |
| 8610 /* This function will look up the channel for the corresponding source */ | |
|
2
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diff
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|
8611 ALint ALmixer_GetChannel(ALuint source) |
|
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diff
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|
8612 { |
|
279d0427ef26
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1
diff
changeset
|
8613 ALint retval; |
|
27
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26
diff
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|
8614 if(0 == ALmixer_Initialized) |
|
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26
diff
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|
8615 { |
|
9cf93a099f75
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26
diff
changeset
|
8616 return -1; |
|
9cf93a099f75
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26
diff
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|
8617 } |
|
2
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diff
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|
8618 #ifdef ENABLE_ALMIXER_THREADS |
|
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diff
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|
8619 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
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1
diff
changeset
|
8620 #endif |
| 0 | 8621 retval = Internal_GetChannel(source); |
|
2
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1
diff
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|
8622 #ifdef ENABLE_ALMIXER_THREADS |
|
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diff
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|
8623 SDL_UnlockMutex(s_simpleLock); |
|
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1
diff
changeset
|
8624 #endif |
| 0 | 8625 return retval; |
| 8626 } | |
| 8627 | |
|
2
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1
diff
changeset
|
8628 ALint ALmixer_FindFreeChannel(ALint start_channel) |
|
279d0427ef26
Overhaul prep for first public release.
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1
diff
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|
8629 { |
|
279d0427ef26
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diff
changeset
|
8630 ALint retval; |
|
27
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26
diff
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|
8631 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
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26
diff
changeset
|
8632 { |
|
9cf93a099f75
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Eric Wing <ewing . public |-at-| gmail . com>
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26
diff
changeset
|
8633 return -1; |
|
9cf93a099f75
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26
diff
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|
8634 } |
|
2
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1
diff
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|
8635 #ifdef ENABLE_ALMIXER_THREADS |
|
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diff
changeset
|
8636 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
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diff
changeset
|
8637 #endif |
| 0 | 8638 retval = Internal_FindFreeChannel(start_channel); |
|
2
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diff
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|
8639 #ifdef ENABLE_ALMIXER_THREADS |
|
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diff
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|
8640 SDL_UnlockMutex(s_simpleLock); |
|
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1
diff
changeset
|
8641 #endif |
| 0 | 8642 return retval; |
| 8643 } | |
| 8644 | |
| 8645 | |
| 8646 | |
| 8647 /* API update function. | |
| 8648 * It should return the number of buffers that were | |
| 8649 * queued during the call. The value might be | |
| 8650 * used to guage how long you might wait to | |
| 8651 * call the next update loop in case you are worried | |
| 8652 * about preserving CPU cycles. The idea is that | |
| 8653 * when a buffer is queued, there was probably some | |
| 8654 * CPU intensive looping which took awhile. | |
| 8655 * It's mainly provided as a convenience. | |
|
2
279d0427ef26
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1
diff
changeset
|
8656 * Timing the call with ALmixer_GetTicks() would produce |
| 0 | 8657 * more accurate information. |
| 8658 * Returns a negative value if there was an error, | |
| 8659 * the value being the number of errors. | |
| 8660 */ | |
|
2
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1
diff
changeset
|
8661 ALint ALmixer_Update() |
| 0 | 8662 { |
| 8663 #ifdef ENABLE_ALMIXER_THREADS | |
| 8664 /* The thread will handle all updates by itself. | |
| 8665 * Don't allow the user to explicitly call update. | |
| 8666 */ | |
| 8667 return 0; | |
| 8668 #else | |
| 8669 return( Update_ALmixer(NULL) ); | |
| 8670 #endif | |
| 8671 } | |
| 8672 | |
| 8673 | |
| 8674 | |
|
2
279d0427ef26
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1
diff
changeset
|
8675 void ALmixer_SetPlaybackFinishedCallback(void (*playback_finished_callback)(ALint which_channel, ALuint al_source, ALmixer_Data* almixer_data, ALboolean finished_naturally, void* user_data), void* user_data) |
|
279d0427ef26
Overhaul prep for first public release.
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1
diff
changeset
|
8676 { |
|
279d0427ef26
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parents:
1
diff
changeset
|
8677 #ifdef ENABLE_ALMIXER_THREADS |
|
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parents:
1
diff
changeset
|
8678 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
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1
diff
changeset
|
8679 #endif |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8680 Channel_Done_Callback = playback_finished_callback; |
|
279d0427ef26
Overhaul prep for first public release.
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1
diff
changeset
|
8681 Channel_Done_Callback_Userdata = user_data; |
|
279d0427ef26
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1
diff
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|
8682 #ifdef ENABLE_ALMIXER_THREADS |
|
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parents:
1
diff
changeset
|
8683 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
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1
diff
changeset
|
8684 #endif |
|
279d0427ef26
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1
diff
changeset
|
8685 } |
|
279d0427ef26
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1
diff
changeset
|
8686 |
|
279d0427ef26
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1
diff
changeset
|
8687 |
|
279d0427ef26
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diff
changeset
|
8688 void ALmixer_SetPlaybackDataCallback(void (*playback_data_callback)(ALint which_chan, ALuint al_source, ALbyte* data, ALuint num_bytes, ALuint frequency, ALubyte channels, ALubyte bit_depth, ALboolean is_unsigned, ALboolean decode_mode_is_predecoded, ALuint length_in_msec, void* user_data), void* user_data) |
|
279d0427ef26
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1
diff
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|
8689 { |
|
279d0427ef26
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1
diff
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|
8690 #ifdef ENABLE_ALMIXER_THREADS |
|
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diff
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|
8691 SDL_LockMutex(s_simpleLock); |
|
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diff
changeset
|
8692 #endif |
|
279d0427ef26
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1
diff
changeset
|
8693 Channel_Data_Callback = playback_data_callback; |
| 1 | 8694 Channel_Data_Callback_Userdata = user_data; |
|
2
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diff
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|
8695 #ifdef ENABLE_ALMIXER_THREADS |
|
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diff
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|
8696 SDL_UnlockMutex(s_simpleLock); |
|
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diff
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|
8697 #endif |
|
279d0427ef26
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diff
changeset
|
8698 } |
|
279d0427ef26
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1
diff
changeset
|
8699 |
|
279d0427ef26
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1
diff
changeset
|
8700 |
|
279d0427ef26
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1
diff
changeset
|
8701 |
|
279d0427ef26
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1
diff
changeset
|
8702 |
|
279d0427ef26
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1
diff
changeset
|
8703 |
|
279d0427ef26
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diff
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|
8704 ALint ALmixer_PlayChannelTimed(ALint channel, ALmixer_Data* data, ALint loops, ALint ticks) |
|
279d0427ef26
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diff
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|
8705 { |
|
279d0427ef26
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diff
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|
8706 ALint retval; |
|
27
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26
diff
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|
8707 if(0 == ALmixer_Initialized) |
|
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26
diff
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|
8708 { |
|
9cf93a099f75
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26
diff
changeset
|
8709 return -1; |
|
9cf93a099f75
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diff
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|
8710 } |
|
2
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diff
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|
8711 #ifdef ENABLE_ALMIXER_THREADS |
|
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diff
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|
8712 SDL_LockMutex(s_simpleLock); |
|
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diff
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|
8713 #endif |
| 0 | 8714 retval = Internal_PlayChannelTimed(channel, data, loops, ticks); |
|
2
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diff
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|
8715 #ifdef ENABLE_ALMIXER_THREADS |
|
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diff
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|
8716 SDL_UnlockMutex(s_simpleLock); |
|
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diff
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|
8717 #endif |
| 0 | 8718 return retval; |
| 8719 } | |
| 8720 | |
| 8721 | |
| 8722 /* In case the user wants to specify a source instead of a channel, | |
| 8723 * they may use this function. This function will look up the | |
| 8724 * source-to-channel map, and convert the call into a | |
| 8725 * PlayChannelTimed() function call. | |
| 8726 * Returns the channel it's being played on. | |
| 8727 * Note: If you are prefer this method, then you need to be careful | |
| 8728 * about using PlayChannel, particularly if you request the | |
| 8729 * first available channels because source and channels have | |
| 8730 * a one-to-one mapping in this API. It is quite easy for | |
| 8731 * a channel/source to already be in use because of this. | |
| 8732 * In this event, an error message will be returned to you. | |
| 8733 */ | |
|
2
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1
diff
changeset
|
8734 ALuint ALmixer_PlaySourceTimed(ALuint source, ALmixer_Data* data, ALint loops, ALint ticks) |
| 0 | 8735 { |
| 8736 ALuint retval; | |
|
27
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26
diff
changeset
|
8737 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
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26
diff
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|
8738 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8739 return 0; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8740 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8741 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8742 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8743 #endif |
| 0 | 8744 retval = Internal_PlaySourceTimed(source, data, loops, ticks); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8745 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8746 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8747 #endif |
| 0 | 8748 return retval; |
| 8749 } | |
| 8750 | |
| 8751 | |
| 8752 /* Will return the number of channels halted | |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8753 * or -1 for error |
| 0 | 8754 */ |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8755 ALint ALmixer_HaltChannel(ALint channel) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8756 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8757 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8758 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8759 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8760 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8761 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8762 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8763 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8764 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8765 retval = Internal_HaltChannel(channel, AL_FALSE); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8766 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8767 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8768 #endif |
| 0 | 8769 return retval; |
| 8770 } | |
| 8771 | |
| 8772 /* Will return the number of channels halted | |
| 8773 * or 0 for error | |
| 8774 */ | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8775 ALint ALmixer_HaltSource(ALuint source) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8776 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8777 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8778 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8779 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8780 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8781 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8782 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8783 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8784 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8785 retval = Internal_HaltSource(source, AL_FALSE); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8786 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8787 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8788 #endif |
| 0 | 8789 return retval; |
| 8790 } | |
| 8791 | |
| 8792 | |
| 8793 /* This will rewind the SDL_Sound sample for streamed | |
| 8794 * samples and start buffering up the data for the next | |
| 8795 * playback. This may require samples to be halted | |
| 8796 */ | |
|
12
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
8797 ALboolean ALmixer_RewindData(ALmixer_Data* data) |
|
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
8798 { |
|
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
8799 ALboolean retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8800 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8801 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8802 return AL_FALSE; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8803 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8804 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8805 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8806 #endif |
| 0 | 8807 retval = Internal_RewindData(data); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8808 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8809 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8810 #endif |
| 0 | 8811 return retval; |
| 8812 } | |
| 8813 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8814 ALint ALmixer_RewindChannel(ALint channel) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8815 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8816 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8817 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8818 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8819 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8820 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8821 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8822 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8823 #endif |
| 0 | 8824 retval = Internal_RewindChannel(channel); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8825 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8826 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8827 #endif |
| 0 | 8828 return retval; |
| 8829 } | |
| 8830 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8831 ALint ALmixer_RewindSource(ALuint source) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8832 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8833 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8834 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8835 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8836 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8837 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8838 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8839 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8840 #endif |
| 0 | 8841 retval = Internal_RewindSource(source); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8842 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8843 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8844 #endif |
| 0 | 8845 return retval; |
| 8846 } | |
| 8847 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8848 ALint ALmixer_PauseChannel(ALint channel) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8849 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8850 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8851 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8852 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8853 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8854 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8855 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8856 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8857 #endif |
| 0 | 8858 retval = Internal_PauseChannel(channel); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8859 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8860 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8861 #endif |
| 0 | 8862 return retval; |
| 8863 } | |
| 8864 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8865 ALint ALmixer_PauseSource(ALuint source) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8866 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8867 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8868 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8869 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8870 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8871 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8872 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8873 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8874 #endif |
| 0 | 8875 retval = Internal_PauseSource(source); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8876 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8877 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8878 #endif |
| 0 | 8879 return retval; |
| 8880 } | |
| 8881 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8882 ALint ALmixer_ResumeChannel(ALint channel) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8883 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8884 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8885 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8886 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8887 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8888 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8889 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8890 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8891 #endif |
| 0 | 8892 retval = Internal_ResumeChannel(channel); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8893 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8894 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8895 #endif |
| 0 | 8896 return retval; |
| 8897 } | |
| 8898 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8899 ALint ALmixer_ResumeSource(ALuint source) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8900 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8901 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8902 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8903 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8904 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8905 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8906 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8907 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8908 #endif |
| 0 | 8909 retval = Internal_ResumeSource(source); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8910 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8911 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8912 #endif |
| 0 | 8913 return retval; |
| 8914 } | |
| 8915 | |
| 8916 /* Might consider setting eof to 0 as a "feature" | |
| 8917 * This will allow seek to end to stay there because | |
| 8918 * Play automatically rewinds if at the end */ | |
|
12
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
8919 ALboolean ALmixer_SeekData(ALmixer_Data* data, ALuint msec) |
|
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
8920 { |
|
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
8921 ALboolean retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8922 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8923 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8924 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8925 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8926 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8927 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8928 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8929 retval = Internal_SeekData(data, msec); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8930 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8931 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8932 #endif |
| 0 | 8933 return retval; |
| 8934 } | |
| 8935 | |
|
20
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8936 ALint ALmixer_SeekChannel(ALint channel, ALuint msec) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8937 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8938 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8939 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8940 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8941 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8942 } |
|
20
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8943 #ifdef ENABLE_ALMIXER_THREADS |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8944 SDL_LockMutex(s_simpleLock); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8945 #endif |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8946 retval = Internal_SeekChannel(channel, msec); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8947 #ifdef ENABLE_ALMIXER_THREADS |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8948 SDL_UnlockMutex(s_simpleLock); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8949 #endif |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8950 return retval; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8951 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8952 |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8953 ALint ALmixer_SeekSource(ALuint source, ALuint msec) |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8954 { |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8955 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8956 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8957 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8958 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8959 } |
|
20
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8960 #ifdef ENABLE_ALMIXER_THREADS |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8961 SDL_LockMutex(s_simpleLock); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8962 #endif |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8963 retval = Internal_SeekSource(source, msec); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8964 #ifdef ENABLE_ALMIXER_THREADS |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8965 SDL_UnlockMutex(s_simpleLock); |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8966 #endif |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8967 return retval; |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8968 } |
|
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8969 |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8970 ALint ALmixer_FadeInChannelTimed(ALint channel, ALmixer_Data* data, ALint loops, ALuint fade_ticks, ALint expire_ticks) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8971 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8972 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8973 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8974 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8975 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8976 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8977 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8978 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8979 #endif |
| 0 | 8980 retval = Internal_FadeInChannelTimed(channel, data, loops, fade_ticks, expire_ticks); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8981 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8982 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8983 #endif |
| 0 | 8984 return retval; |
| 8985 } | |
| 8986 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8987 ALuint ALmixer_FadeInSourceTimed(ALuint source, ALmixer_Data* data, ALint loops, ALuint fade_ticks, ALint expire_ticks) |
| 0 | 8988 { |
| 8989 ALuint retval; | |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8990 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8991 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8992 return 0; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
8993 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8994 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8995 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8996 #endif |
| 0 | 8997 retval = Internal_FadeInSourceTimed(source, data, loops, fade_ticks, expire_ticks); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8998 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8999 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9000 #endif |
| 0 | 9001 return retval; |
| 9002 } | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9003 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9004 ALint ALmixer_FadeOutChannel(ALint channel, ALuint ticks) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9005 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9006 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9007 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9008 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9009 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9010 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9011 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9012 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9013 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9014 retval = Internal_FadeOutChannel(channel, ticks); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9015 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9016 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9017 #endif |
| 0 | 9018 return retval; |
| 9019 } | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9020 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9021 ALint ALmixer_FadeOutSource(ALuint source, ALuint ticks) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9022 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9023 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9024 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9025 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9026 return 0; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9027 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9028 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9029 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9030 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9031 retval = Internal_FadeOutSource(source, ticks); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9032 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9033 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9034 #endif |
| 0 | 9035 return retval; |
| 9036 } | |
| 9037 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9038 ALint ALmixer_FadeChannel(ALint channel, ALuint ticks, ALfloat volume) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9039 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9040 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9041 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9042 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9043 return 0; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9044 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9045 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9046 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9047 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9048 retval = Internal_FadeChannel(channel, ticks, volume); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9049 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9050 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9051 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9052 return retval; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9053 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9054 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9055 ALint ALmixer_FadeSource(ALuint source, ALuint ticks, ALfloat volume) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9056 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9057 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9058 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9059 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9060 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9061 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9062 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9063 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9064 #endif |
| 0 | 9065 retval = Internal_FadeSource(source, ticks, volume); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9066 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9067 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9068 #endif |
| 0 | 9069 return retval; |
| 9070 } | |
| 9071 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9072 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9073 ALboolean ALmixer_SetVolumeChannel(ALint channel, ALfloat volume) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9074 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9075 ALboolean retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9076 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9077 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9078 return AL_FALSE; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9079 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9080 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9081 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9082 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9083 retval = Internal_SetVolumeChannel(channel, volume); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9084 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9085 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9086 #endif |
| 0 | 9087 return retval; |
| 9088 } | |
| 9089 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9090 ALboolean ALmixer_SetVolumeSource(ALuint source, ALfloat volume) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9091 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9092 ALboolean retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9093 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9094 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9095 return AL_FALSE; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9096 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9097 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9098 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9099 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9100 retval = Internal_SetVolumeSource(source, volume); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9101 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9102 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9103 #endif |
| 0 | 9104 return retval; |
| 9105 } | |
| 9106 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9107 ALfloat ALmixer_GetVolumeChannel(ALint channel) |
| 0 | 9108 { |
| 9109 ALfloat retval; | |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9110 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9111 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9112 return -1.0f; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9113 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9114 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9115 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9116 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9117 retval = Internal_GetVolumeChannel(channel); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9118 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9119 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9120 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9121 return retval; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9122 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9123 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9124 ALfloat ALmixer_GetVolumeSource(ALuint source) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9125 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9126 ALfloat retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9127 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9128 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9129 return -1.0f; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9130 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9131 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9132 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9133 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9134 retval = Internal_GetVolumeSource(source); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9135 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9136 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9137 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9138 return retval; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9139 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9140 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9141 ALboolean ALmixer_SetMaxVolumeChannel(ALint channel, ALfloat volume) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9142 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9143 ALboolean retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9144 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9145 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9146 return AL_FALSE; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9147 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9148 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9149 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9150 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9151 retval = Internal_SetMaxVolumeChannel(channel, volume); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9152 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9153 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9154 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9155 return retval; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9156 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9157 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9158 ALboolean ALmixer_SetMaxVolumeSource(ALuint source, ALfloat volume) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9159 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9160 ALboolean retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9161 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9162 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9163 return AL_FALSE; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9164 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9165 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9166 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9167 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9168 retval = Internal_SetMaxVolumeSource(source, volume); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9169 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9170 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9171 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9172 return retval; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9173 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9174 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9175 ALfloat ALmixer_GetMaxVolumeChannel(ALint channel) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9176 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9177 ALfloat retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9178 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9179 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9180 return -1.0f; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9181 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9182 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9183 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9184 #endif |
| 0 | 9185 retval = Internal_GetMaxVolumeChannel(channel); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9186 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9187 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9188 #endif |
| 0 | 9189 return retval; |
| 9190 } | |
| 9191 | |
| 9192 ALfloat ALmixer_GetMaxVolumeSource(ALuint source) | |
| 9193 { | |
| 9194 ALfloat retval; | |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9195 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9196 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9197 return -1.0f; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9198 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9199 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9200 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9201 #endif |
| 0 | 9202 retval = Internal_GetMaxVolumeSource(source); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9203 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9204 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9205 #endif |
| 0 | 9206 return retval; |
| 9207 } | |
| 9208 | |
| 9209 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9210 ALboolean ALmixer_SetMinVolumeChannel(ALint channel, ALfloat volume) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9211 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9212 ALboolean retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9213 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9214 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9215 return AL_FALSE; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9216 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9217 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9218 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9219 #endif |
| 0 | 9220 retval = Internal_SetMinVolumeChannel(channel, volume); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9221 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9222 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9223 #endif |
| 0 | 9224 return retval; |
| 9225 } | |
| 9226 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9227 ALboolean ALmixer_SetMinVolumeSource(ALuint source, ALfloat volume) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9228 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9229 ALboolean retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9230 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9231 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9232 return AL_FALSE; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9233 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9234 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9235 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9236 #endif |
| 0 | 9237 retval = Internal_SetMinVolumeSource(source, volume); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9238 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9239 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9240 #endif |
| 0 | 9241 return retval; |
| 9242 } | |
| 9243 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9244 ALfloat ALmixer_GetMinVolumeChannel(ALint channel) |
| 0 | 9245 { |
| 9246 ALfloat retval; | |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9247 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9248 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9249 return -1.0f; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9250 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9251 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9252 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9253 #endif |
| 0 | 9254 retval = Internal_GetMinVolumeChannel(channel); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9255 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9256 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9257 #endif |
| 0 | 9258 return retval; |
| 9259 } | |
| 9260 | |
| 9261 ALfloat ALmixer_GetMinVolumeSource(ALuint source) | |
| 9262 { | |
| 9263 ALfloat retval; | |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9264 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9265 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9266 return -1.0f; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9267 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9268 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9269 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9270 #endif |
| 0 | 9271 retval = Internal_GetMinVolumeSource(source); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9272 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9273 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9274 #endif |
| 0 | 9275 return retval; |
| 9276 } | |
| 9277 | |
| 9278 | |
| 9279 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9280 ALboolean ALmixer_SetMasterVolume(ALfloat volume) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9281 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9282 ALboolean retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9283 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9284 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9285 return AL_FALSE; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9286 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9287 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9288 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9289 #endif |
| 0 | 9290 retval = Internal_SetMasterVolume(volume); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9291 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9292 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9293 #endif |
| 0 | 9294 return retval; |
| 9295 } | |
| 9296 | |
| 9297 ALfloat ALmixer_GetMasterVolume() | |
| 9298 { | |
| 9299 ALfloat retval; | |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9300 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9301 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9302 return -1.0f; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9303 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9304 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9305 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9306 #endif |
| 0 | 9307 retval = Internal_GetMasterVolume(); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9308 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9309 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9310 #endif |
| 0 | 9311 return retval; |
| 9312 } | |
| 9313 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9314 ALint ALmixer_ExpireChannel(ALint channel, ALint ticks) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9315 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9316 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9317 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9318 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9319 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9320 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9321 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9322 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9323 #endif |
| 0 | 9324 retval = Internal_ExpireChannel(channel, ticks); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9325 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9326 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9327 #endif |
| 0 | 9328 return retval; |
| 9329 } | |
| 9330 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9331 ALint ALmixer_ExpireSource(ALuint source, ALint ticks) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9332 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9333 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9334 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9335 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9336 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9337 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9338 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9339 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9340 #endif |
| 0 | 9341 retval = Internal_ExpireSource(source, ticks); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9342 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9343 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9344 #endif |
| 0 | 9345 return retval; |
| 9346 } | |
| 9347 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9348 ALint ALmixer_IsActiveChannel(ALint channel) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9349 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9350 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9351 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9352 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9353 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9354 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9355 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9356 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9357 #endif |
| 0 | 9358 retval = Internal_QueryChannel(channel); |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9359 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9360 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9361 #endif |
| 0 | 9362 return retval; |
| 9363 } | |
| 9364 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9365 ALint ALmixer_IsActiveSource(ALuint source) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9366 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9367 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9368 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9369 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9370 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9371 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9372 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9373 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9374 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9375 retval = Internal_QuerySource(source); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9376 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9377 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9378 #endif |
| 0 | 9379 return retval; |
| 9380 } | |
| 9381 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9382 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9383 ALint ALmixer_IsPlayingChannel(ALint channel) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9384 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9385 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9386 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9387 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9388 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9389 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9390 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9391 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9392 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9393 retval = Internal_PlayingChannel(channel); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9394 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9395 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9396 #endif |
| 0 | 9397 return retval; |
| 9398 } | |
| 9399 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9400 ALint ALmixer_IsPlayingSource(ALuint source) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9401 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9402 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9403 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9404 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9405 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9406 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9407 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9408 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9409 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9410 retval = Internal_PlayingSource(source); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9411 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9412 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9413 #endif |
| 0 | 9414 return retval; |
| 9415 } | |
| 9416 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9417 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9418 ALint ALmixer_IsPausedChannel(ALint channel) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9419 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9420 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9421 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9422 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9423 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9424 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9425 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9426 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9427 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9428 retval = Internal_PausedChannel(channel); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9429 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9430 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9431 #endif |
| 0 | 9432 return retval; |
| 9433 } | |
| 9434 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9435 ALint ALmixer_IsPausedSource(ALuint source) |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9436 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9437 ALint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9438 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9439 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9440 return -1; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9441 } |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9442 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9443 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9444 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9445 retval = Internal_PausedSource(source); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9446 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9447 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9448 #endif |
| 0 | 9449 return retval; |
| 9450 } | |
| 9451 | |
|
2
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9452 |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9453 ALuint ALmixer_CountAllFreeChannels() |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9454 { |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9455 ALuint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9456 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9457 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9458 return 0; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9459 } |
|
2
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9460 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9461 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9462 #endif |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9463 retval = Internal_CountAllFreeChannels(); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9464 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9465 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9466 #endif |
| 0 | 9467 return retval; |
| 9468 } | |
| 9469 | |
|
2
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9470 ALuint ALmixer_CountUnreservedFreeChannels() |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9471 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9472 ALuint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9473 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9474 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9475 return 0; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9476 } |
|
2
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9477 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9478 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9479 #endif |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9480 retval = Internal_CountUnreservedFreeChannels(); |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9481 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9482 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9483 #endif |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9484 return retval; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9485 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9486 |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9487 ALuint ALmixer_CountAllUsedChannels() |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9488 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9489 ALuint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9490 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9491 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9492 return 0; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9493 } |
|
2
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9494 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9495 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9496 #endif |
| 0 | 9497 retval = Internal_CountAllUsedChannels(); |
|
2
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9498 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9499 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9500 #endif |
| 0 | 9501 return retval; |
| 9502 } | |
| 9503 | |
|
2
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9504 ALuint ALmixer_CountUnreservedUsedChannels() |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9505 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9506 ALuint retval; |
|
27
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9507 if(0 == ALmixer_Initialized) |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9508 { |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9509 return 0; |
|
9cf93a099f75
Added initialization checks to all API functions.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
26
diff
changeset
|
9510 } |
|
2
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9511 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9512 SDL_LockMutex(s_simpleLock); |
|
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9513 #endif |
| 0 | 9514 retval = Internal_CountUnreservedUsedChannels(); |
|
2
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9515 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9516 SDL_UnlockMutex(s_simpleLock); |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9517 #endif |
| 0 | 9518 return retval; |
| 9519 } | |
| 9520 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9521 ALboolean ALmixer_IsPredecoded(ALmixer_Data* data) |
| 1 | 9522 { |
| 9523 if(NULL == data) | |
| 9524 { | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9525 return AL_FALSE; |
| 1 | 9526 } |
| 9527 return data->decoded_all; | |
| 9528 } | |
| 9529 | |
|
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9530 ALboolean ALmixer_CompiledWithThreadBackend() |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9531 { |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9532 #ifdef ENABLE_ALMIXER_THREADS |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9533 return AL_TRUE; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9534 #else |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9535 return AL_FALSE; |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9536 #endif |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9537 } |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9538 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9539 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9540 |
|
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9541 |