Mercurial > almixer_isolated
annotate ALmixer.c @ 25:46e82b415520
merged
author | Eric Wing <ewing . public |-at-| gmail . com> |
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date | Fri, 24 Dec 2010 03:33:31 -0800 |
parents | e085cbc573cf 9365e714fc4b |
children | 884cce2515eb |
rev | line source |
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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; |
228 #endif | |
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 #if defined(__APPLE__) && !defined(ALMIXER_COMPILE_WITHOUT_SDL) && ( (TARGET_OS_IPHONE == 1) || (TARGET_IPHONE_SIMULATOR == 1) ) |
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355 #include <pthread.h> |
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356 #endif |
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357 static void Internal_LowerThreadPriority(SDL_Thread* simple_thread) |
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358 { |
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359 /* Might open to other platforms as needed */ |
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360 #if defined(__APPLE__) && ( (TARGET_OS_IPHONE == 1) || (TARGET_IPHONE_SIMULATOR == 1) ) |
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361 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
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362 SimpleThread_SetThreadPriority(Stream_Thread_global, 0); |
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363 #else |
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364 struct sched_param schedule_param; |
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365 int sched_policy; |
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366 int ret_val; |
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367 schedule_param.sched_priority = 0; /* PTHREAD_MIN_PRIORITY, max=31 */ |
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368 /* EVIL! This will break if the SDL_Thread structure layout changes. */ |
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369 pthread_t* native_thread_ptr_hack = (pthread_t*)(((char*)(Stream_Thread_global))+sizeof(unsigned long)); |
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370 ret_val = pthread_setschedparam(*native_thread_ptr_hack, SCHED_OTHER, &schedule_param); |
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371 #endif |
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372 #else |
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373 /* No-Op */ |
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374 #endif |
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375 } |
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376 |
0 | 377 /* If ENABLE_PARANOID_SIGNEDNESS_CHECK is used, |
378 * these values will be reset on Init() | |
379 * Consider these values Read-Only. | |
380 */ | |
381 | |
382 #define ALMIXER_SIGNED_VALUE 127 | |
383 #define ALMIXER_UNSIGNED_VALUE 255 | |
384 | |
385 #ifdef ENABLE_PARANOID_SIGNEDNESS_CHECK | |
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386 static ALushort SIGN_TYPE_16_BIT_FORMAT = AUDIO_S16SYS; |
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387 static ALushort SIGN_TYPE_8_BIT_FORMAT = AUDIO_S8; |
0 | 388 #else |
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389 static const ALushort SIGN_TYPE_16_BIT_FORMAT = AUDIO_S16SYS; |
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390 static const ALushort SIGN_TYPE_8_BIT_FORMAT = AUDIO_S8; |
0 | 391 #endif |
392 | |
1 | 393 |
394 /* This can be private instead of being in the header now that I moved | |
395 * ALmixer_Data inside here. | |
396 */ | |
397 typedef struct ALmixer_Buffer_Map ALmixer_Buffer_Map; | |
398 | |
399 | |
400 struct ALmixer_Data | |
401 { | |
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402 ALboolean decoded_all; /* dictates different behaviors */ |
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403 ALint total_time; /* total playing time of sample (msec), obsolete now that we pushed our changes to SDL_sound */ |
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404 |
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405 ALuint in_use; /* needed to prevent sharing for streams */ |
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406 ALboolean eof; /* flag for eof, only used for streams */ |
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407 |
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408 ALuint total_bytes; /* For predecoded */ |
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409 ALuint loaded_bytes; /* For predecoded (for seek) */ |
1 | 410 |
411 Sound_Sample* sample; /* SDL_Sound provides the data */ | |
412 ALuint* buffer; /* array of OpenAL buffers (at least 1 for predecoded) */ | |
413 | |
414 /* Needed for streamed buffers */ | |
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415 ALuint max_queue_buffers; /* Max number of queue buffers */ |
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416 ALuint num_startup_buffers; /* Number of ramp-up buffers */ |
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417 ALuint num_buffers_in_use; /* number of buffers in use */ |
1 | 418 |
419 /* This stuff is for streamed buffers that require data access */ | |
420 ALmixer_Buffer_Map* buffer_map_list; /* translate ALbuffer to index | |
421 and holds pointer to copy of data for | |
422 data access */ | |
423 ALuint current_buffer; /* The current playing buffer */ | |
424 | |
425 /* Nvidia distribution refuses to recognize a simple buffer query command | |
426 * unlike all other distributions. It's forcing me to redo the code | |
427 * to accomodate this Nvidia flaw by making me maintain a "best guess" | |
428 * copy of what I think the buffer queue state looks like. | |
429 * A circular queue would a helpful data structure for this task, | |
430 * but I wanted to avoid making an additional header requirement, | |
431 * so I'm making it a void* | |
432 */ | |
433 void* circular_buffer_queue; | |
434 | |
435 | |
436 }; | |
437 | |
0 | 438 static struct ALmixer_Channel |
439 { | |
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440 ALboolean channel_in_use; |
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441 ALboolean callback_update; /* For streaming determination */ |
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442 ALboolean needs_stream; /* For streaming determination */ |
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443 ALboolean halted; |
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444 ALboolean paused; |
0 | 445 ALuint alsource; |
446 ALmixer_Data* almixer_data; | |
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447 ALint loops; |
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448 ALint expire_ticks; |
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449 ALuint start_time; |
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450 |
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451 ALboolean fade_enabled; |
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452 ALuint fade_expire_ticks; |
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453 ALuint fade_start_time; |
0 | 454 ALfloat fade_inv_time; |
455 ALfloat fade_start_volume; | |
456 ALfloat fade_end_volume; | |
457 ALfloat max_volume; | |
458 ALfloat min_volume; | |
459 | |
460 /* Do we need other flags? | |
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461 ALbyte *samples; |
0 | 462 int volume; |
463 int looping; | |
464 int tag; | |
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465 ALuint expire; |
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466 ALuint start_time; |
0 | 467 Mix_Fading fading; |
468 int fade_volume; | |
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469 ALuint fade_length; |
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470 ALuint ticks_fade; |
0 | 471 effect_info *effects; |
472 */ | |
473 } *ALmixer_Channel_List = NULL; | |
474 | |
1 | 475 struct ALmixer_Buffer_Map |
476 { | |
477 ALuint albuffer; | |
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478 ALint index; /* might not need */ |
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479 ALbyte* data; |
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480 ALuint num_bytes; |
1 | 481 }; |
482 | |
0 | 483 /* This will be used to find a channel if the user supplies a source */ |
484 typedef struct Source_Map | |
485 { | |
486 ALuint source; | |
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487 ALint channel; |
0 | 488 } Source_Map; |
489 /* Keep an array of all sources with their associated channel */ | |
490 static Source_Map* Source_Map_List; | |
491 | |
492 static int Compare_Source_Map(const void* a, const void* b) | |
493 { | |
494 return ( ((Source_Map*)a)->source - ((Source_Map*)b)->source ); | |
495 } | |
496 | |
497 /* Sort by channel instead of source */ | |
498 static int Compare_Source_Map_by_channel(const void* a, const void* b) | |
499 { | |
500 return ( ((Source_Map*)a)->channel - ((Source_Map*)b)->channel ); | |
501 } | |
502 | |
503 /* Compare by albuffer */ | |
504 static int Compare_Buffer_Map(const void* a, const void* b) | |
505 { | |
1 | 506 return ( ((ALmixer_Buffer_Map*)a)->albuffer - ((ALmixer_Buffer_Map*)b)->albuffer ); |
0 | 507 } |
508 | |
509 /* This is for the user defined callback via | |
510 * ALmixer_ChannelFinished() | |
511 */ | |
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512 static void (*Channel_Done_Callback)(ALint which_channel, ALuint al_source, ALmixer_Data* almixer_data, ALboolean finished_naturally, void* user_data) = NULL; |
0 | 513 static void* Channel_Done_Callback_Userdata = NULL; |
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514 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 | 515 static void* Channel_Data_Callback_Userdata = NULL; |
0 | 516 |
517 | |
518 static void PrintQueueStatus(ALuint source) | |
519 { | |
520 ALint buffers_queued = 0; | |
521 ALint buffers_processed = 0; | |
522 ALenum error; | |
523 | |
524 /* Get the number of buffers still queued */ | |
525 alGetSourcei( | |
526 source, | |
527 AL_BUFFERS_QUEUED, | |
528 &buffers_queued | |
529 ); | |
530 | |
531 if((error = alGetError()) != AL_NO_ERROR) | |
532 { | |
533 fprintf(stderr, "Error in PrintQueueStatus, Can't get buffers_queued: %s\n", | |
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534 alGetString(error)); |
0 | 535 } |
536 /* Get the number of buffers processed | |
537 * so we know if we need to refill | |
538 */ | |
539 alGetSourcei( | |
540 source, | |
541 AL_BUFFERS_PROCESSED, | |
542 &buffers_processed | |
543 ); | |
544 if((error = alGetError()) != AL_NO_ERROR) | |
545 { | |
546 fprintf(stderr, "Error in PrintQueueStatus, Can't get buffers_processed: %s\n", | |
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547 alGetString(error)); |
0 | 548 } |
549 | |
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550 /* |
0 | 551 fprintf(stderr, "For source: %d, buffers_queued=%d, buffers_processed=%d\n", |
552 source, | |
553 buffers_queued, | |
554 buffers_processed); | |
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555 */ |
0 | 556 } |
557 | |
558 | |
559 | |
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560 static void Init_Channel(ALint channel) |
0 | 561 { |
562 ALmixer_Channel_List[channel].channel_in_use = 0; | |
563 ALmixer_Channel_List[channel].callback_update = 0; | |
564 ALmixer_Channel_List[channel].needs_stream = 0; | |
565 ALmixer_Channel_List[channel].paused = 0; | |
566 ALmixer_Channel_List[channel].halted = 0; | |
567 ALmixer_Channel_List[channel].loops = 0; | |
568 | |
569 ALmixer_Channel_List[channel].expire_ticks = 0; | |
570 ALmixer_Channel_List[channel].start_time = 0; | |
571 | |
572 ALmixer_Channel_List[channel].fade_enabled = 0; | |
573 ALmixer_Channel_List[channel].fade_expire_ticks = 0; | |
574 ALmixer_Channel_List[channel].fade_start_time = 0; | |
575 ALmixer_Channel_List[channel].fade_inv_time = 0.0f; | |
576 ALmixer_Channel_List[channel].fade_start_volume = 0.0f; | |
577 ALmixer_Channel_List[channel].fade_end_volume = 0.0f; | |
578 ALmixer_Channel_List[channel].max_volume = 1.0f; | |
579 ALmixer_Channel_List[channel].min_volume = 0.0f; | |
580 | |
581 ALmixer_Channel_List[channel].almixer_data = NULL; | |
582 } | |
583 /* Quick helper function to clean up a channel | |
584 * after it's done playing */ | |
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585 static void Clean_Channel(ALint channel) |
0 | 586 { |
587 ALenum error; | |
588 ALmixer_Channel_List[channel].channel_in_use = 0; | |
589 ALmixer_Channel_List[channel].callback_update = 0; | |
590 ALmixer_Channel_List[channel].needs_stream = 0; | |
591 ALmixer_Channel_List[channel].paused = 0; | |
592 ALmixer_Channel_List[channel].halted = 0; | |
593 ALmixer_Channel_List[channel].loops = 0; | |
594 | |
595 | |
596 ALmixer_Channel_List[channel].expire_ticks = 0; | |
597 ALmixer_Channel_List[channel].start_time = 0; | |
598 | |
599 ALmixer_Channel_List[channel].fade_enabled = 0; | |
600 ALmixer_Channel_List[channel].fade_expire_ticks = 0; | |
601 ALmixer_Channel_List[channel].fade_start_time = 0; | |
602 ALmixer_Channel_List[channel].fade_inv_time = 0.0f; | |
603 ALmixer_Channel_List[channel].fade_start_volume = 0.0f; | |
604 ALmixer_Channel_List[channel].fade_end_volume = 0.0f; | |
605 | |
606 alSourcef(ALmixer_Channel_List[channel].alsource, AL_MAX_GAIN, | |
607 ALmixer_Channel_List[channel].max_volume); | |
608 | |
609 if((error = alGetError()) != AL_NO_ERROR) | |
610 { | |
611 fprintf(stderr, "10Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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612 alGetString(error)); |
0 | 613 } |
614 | |
615 alSourcef(ALmixer_Channel_List[channel].alsource, AL_MIN_GAIN, | |
616 ALmixer_Channel_List[channel].min_volume); | |
617 if((error = alGetError()) != AL_NO_ERROR) | |
618 { | |
619 fprintf(stderr, "11Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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620 alGetString(error)); |
0 | 621 } |
622 | |
623 if(ALmixer_Channel_List[channel].almixer_data != NULL) | |
624 { | |
625 if(ALmixer_Channel_List[channel].almixer_data->in_use > 0) | |
626 { | |
627 ALmixer_Channel_List[channel].almixer_data->in_use--; | |
628 } | |
629 } | |
630 /* Needed to determine if rewind is needed, can't reset */ | |
631 /* | |
632 ALmixer_Channel_List[channel].almixer_data->eof = 0; | |
633 */ | |
634 | |
635 ALmixer_Channel_List[channel].almixer_data = NULL; | |
636 } | |
637 | |
638 /* What shoud this return? | |
639 * 127 for signed, 255 for unsigned | |
640 */ | |
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641 static ALubyte GetSignednessValue(ALushort format) |
0 | 642 { |
643 switch(format) | |
644 { | |
645 case AUDIO_U8: | |
646 case AUDIO_U16LSB: | |
647 case AUDIO_U16MSB: | |
648 return ALMIXER_UNSIGNED_VALUE; | |
649 break; | |
650 case AUDIO_S8: | |
651 case AUDIO_S16LSB: | |
652 case AUDIO_S16MSB: | |
653 return ALMIXER_SIGNED_VALUE; | |
654 break; | |
655 default: | |
656 return 0; | |
657 } | |
658 return 0; | |
659 } | |
660 | |
661 | |
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662 static ALubyte GetBitDepth(ALushort format) |
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663 { |
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664 ALubyte bit_depth = 16; |
0 | 665 |
666 switch(format) | |
667 { | |
668 case AUDIO_U8: | |
669 case AUDIO_S8: | |
670 bit_depth = 8; | |
671 break; | |
672 | |
673 case AUDIO_U16LSB: | |
674 /* | |
675 case AUDIO_U16: | |
676 */ | |
677 case AUDIO_S16LSB: | |
678 /* | |
679 case AUDIO_S16: | |
680 */ | |
681 case AUDIO_U16MSB: | |
682 case AUDIO_S16MSB: | |
683 /* | |
684 case AUDIO_U16SYS: | |
685 case AUDIO_S16SYS: | |
686 */ | |
687 bit_depth = 16; | |
688 break; | |
689 default: | |
690 bit_depth = 0; | |
691 } | |
692 return bit_depth; | |
693 } | |
694 | |
695 /* Need to translate between SDL/SDL_Sound audiospec | |
696 * and OpenAL conventions */ | |
697 static ALenum TranslateFormat(Sound_AudioInfo* info) | |
698 { | |
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699 ALubyte bit_depth; |
0 | 700 |
701 bit_depth = GetBitDepth(info->format); | |
702 if(0 == bit_depth) | |
703 { | |
704 fprintf(stderr, "Warning: Unknown bit depth. Setting to 16\n"); | |
705 bit_depth = 16; | |
706 } | |
707 | |
708 if(2 == info->channels) | |
709 { | |
710 if(16 == bit_depth) | |
711 { | |
712 return AL_FORMAT_STEREO16; | |
713 } | |
714 else | |
715 { | |
716 return AL_FORMAT_STEREO8; | |
717 } | |
718 } | |
719 else | |
720 { | |
721 if(16 == bit_depth) | |
722 { | |
723 return AL_FORMAT_MONO16; | |
724 } | |
725 else | |
726 { | |
727 return AL_FORMAT_MONO8; | |
728 } | |
729 } | |
730 /* Make compiler happy. Shouldn't get here */ | |
731 return AL_FORMAT_STEREO16; | |
732 } | |
733 | |
1 | 734 |
735 /* This will compute the total playing time | |
736 * based upon the number of bytes and audio info. | |
737 * (In prinicple, it should compute the time for any given length) | |
738 */ | |
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739 static ALuint Compute_Total_Time_Decomposed(ALuint bytes_per_sample, ALuint frequency, ALubyte channels, size_t total_bytes) |
1 | 740 { |
741 double total_sec; | |
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742 ALuint total_msec; |
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743 ALuint bytes_per_sec; |
1 | 744 |
745 if(0 == total_bytes) | |
746 { | |
747 return 0; | |
748 } | |
749 /* To compute Bytes per second, do | |
750 * samples_per_sec * bytes_per_sample * number_of_channels | |
751 */ | |
752 bytes_per_sec = frequency * bytes_per_sample * channels; | |
753 | |
754 /* Now to get total time (sec), do | |
755 * total_bytes / bytes_per_sec | |
756 */ | |
757 total_sec = total_bytes / (double)bytes_per_sec; | |
758 | |
759 /* Now convert seconds to milliseconds | |
760 * Add .5 to the float to do rounding before the final cast | |
761 */ | |
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762 total_msec = (ALuint) ( (total_sec * 1000) + 0.5 ); |
1 | 763 /* |
764 fprintf(stderr, "freq=%d, bytes_per_sample=%d, channels=%d, total_msec=%d\n", frequency, bytes_per_sample, channels, total_msec); | |
765 */ | |
766 return total_msec; | |
767 } | |
768 | |
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769 static ALuint Compute_Total_Time(Sound_AudioInfo *info, size_t total_bytes) |
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770 { |
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771 ALuint bytes_per_sample; |
1 | 772 |
773 if(0 == total_bytes) | |
774 { | |
775 return 0; | |
776 } | |
777 /* SDL has a mask trick I was not aware of. Mask the upper bits | |
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778 * of the format, and you get 8 or 16 which is the bits per sample. |
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779 * Divide by 8bits_per_bytes and you get bytes_per_sample |
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780 * I tested this under 32-bit and 64-bit and big and little endian |
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781 * to make sure this still works since I have since moved from |
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782 * Uint32 to unspecified size types like ALuint. |
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783 */ |
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784 bytes_per_sample = (ALuint) ((info->format & 0xFF) / 8); |
1 | 785 |
786 return Compute_Total_Time_Decomposed(bytes_per_sample, info->rate, info->channels, total_bytes); | |
787 } /* End Compute_Total_Time */ | |
788 | |
789 | |
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790 #ifdef ALMIXER_DISABLE_PREDECODED_PRECOMPUTE_BUFFER_SIZE_OPTIMIZATION |
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791 static size_t Compute_Total_Bytes_Decomposed(ALuint bytes_per_sample, ALuint frequency, ALubyte channels, ALuint total_msec) |
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792 { |
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793 double total_sec; |
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794 ALuint bytes_per_sec; |
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795 size_t total_bytes; |
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796 |
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797 if(0 >= total_msec) |
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798 { |
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799 return 0; |
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800 } |
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801 /* To compute Bytes per second, do |
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802 * samples_per_sec * bytes_per_sample * number_of_channels |
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803 */ |
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804 bytes_per_sec = frequency * bytes_per_sample * channels; |
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805 |
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806 /* convert milliseconds to seconds */ |
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807 total_sec = total_msec / 1000.0; |
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808 |
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809 /* Now to get total bytes */ |
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810 total_bytes = (size_t)(((double)bytes_per_sec * total_sec) + 0.5); |
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811 |
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812 /* 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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813 */ |
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814 |
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815 return total_bytes; |
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816 } |
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817 |
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818 static size_t Compute_Total_Bytes(Sound_AudioInfo *info, ALuint total_msec) |
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819 { |
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820 ALuint bytes_per_sample; |
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821 |
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822 if(0 >= total_msec) |
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823 { |
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824 return 0; |
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825 } |
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826 /* SDL has a mask trick I was not aware of. Mask the upper bits |
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827 * of the format, and you get 8 or 16 which is the bits per sample. |
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828 * Divide by 8bits_per_bytes and you get bytes_per_sample |
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829 * I tested this under 32-bit and 64-bit and big and little endian |
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830 * to make sure this still works since I have since moved from |
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831 * Uint32 to unspecified size types like ALuint. |
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832 */ |
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833 bytes_per_sample = (ALuint) ((info->format & 0xFF) / 8); |
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834 |
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835 return Compute_Total_Bytes_Decomposed(bytes_per_sample, info->rate, info->channels, total_msec); |
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836 } |
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837 |
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838 |
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839 /* The back-end decoders seem to need to decode in quantized frame sizes. |
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840 * So if I can pad the bytes to the next quanta, things might go more smoothly. |
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841 */ |
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842 static size_t Compute_Total_Bytes_With_Frame_Padding(Sound_AudioInfo *info, ALuint total_msec) |
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843 { |
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844 ALuint bytes_per_sample; |
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845 ALuint bytes_per_frame; |
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846 size_t evenly_divisible_frames; |
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847 size_t remainder_frames; |
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848 size_t return_bytes; |
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849 |
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850 size_t total_bytes = Compute_Total_Bytes(info, total_msec); |
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851 |
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852 bytes_per_sample = (ALuint) ((info->format & 0xFF) / 8); |
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853 |
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854 bytes_per_frame = bytes_per_sample * info->channels; |
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855 |
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856 evenly_divisible_frames = total_bytes / bytes_per_frame; |
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857 remainder_frames = total_bytes % bytes_per_frame; |
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858 |
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859 return_bytes = (evenly_divisible_frames * bytes_per_frame) + (remainder_frames * bytes_per_frame); |
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860 |
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861 /* Experimentally, some times I see to come up short in |
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862 * actual bytes decoded and I see a second pass is needed. |
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863 * I'm worried this may have additional performance implications. |
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864 * Sometimes in the second pass (depending on file), |
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865 * I have seen between 0 and 18 bytes. |
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866 * I'm tempted to pad the bytes by some arbitrary amount. |
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867 * However, I think currently the way SDL_sound is implemented, |
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868 * there is a big waste of memory up front instead of per-pass, |
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869 * so maybe I shouldn't worry about this. |
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870 */ |
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871 /* |
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872 return_bytes += 64; |
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873 */ |
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874 /* |
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875 fprintf(stderr, "remainder_frames=%d, padded_total_bytes=%d\n", remainder_frames, return_bytes); |
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876 */ |
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877 return return_bytes; |
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878 } |
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879 #endif /* ALMIXER_DISABLE_PREDECODED_PRECOMPUTE_BUFFER_SIZE_OPTIMIZATION */ |
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880 |
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881 |
1 | 882 |
0 | 883 /**************** REMOVED ****************************/ |
884 /* This was removed because I originally thought | |
885 * OpenAL could return a pointer to the buffer data, | |
886 * but I was wrong. If something like that is ever | |
887 * implemented, then this might become useful. | |
888 */ | |
889 #if 0 | |
890 /* Reconstruct_Sound_Sample and Set_AudioInfo only | |
891 * are needed if the Seek memory optimization is | |
892 * used. Also, the Loki dist doesn't seem to support | |
893 * AL_DATA which I need for it. | |
894 */ | |
895 #ifndef DISABLE_SEEK_MEMORY_OPTIMIZATION | |
896 | |
897 static void Set_AudioInfo(Sound_AudioInfo* info, ALint frequency, ALint bits, ALint channels) | |
898 { | |
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899 info->rate = (ALuint)frequency; |
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900 info->channels = (ALubyte)channels; |
0 | 901 |
902 /* Not sure if it should be signed or unsigned. Hopefully | |
903 * that detail won't be needed. | |
904 */ | |
905 if(8 == bits) | |
906 { | |
907 info->format = AUDIO_U8; | |
908 } | |
909 else | |
910 { | |
911 info->format = AUDIO_U16SYS; | |
912 } | |
913 fprintf(stderr, "Audio info: freq=%d, chan=%d, format=%d\n", | |
914 info->rate, info->channels, info->format); | |
915 | |
916 } | |
917 | |
918 | |
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919 static ALint Reconstruct_Sound_Sample(ALmixer_Data* data) |
0 | 920 { |
921 ALenum error; | |
922 ALint* data_from_albuffer; | |
923 ALint freq; | |
924 ALint bits; | |
925 ALint channels; | |
926 ALint size; | |
927 | |
928 /* Create memory all initiallized to 0. */ | |
929 data->sample = (Sound_Sample*)calloc(1, sizeof(Sound_Sample)); | |
930 if(NULL == data->sample) | |
931 { | |
932 ALmixer_SetError("Out of memory for Sound_Sample"); | |
933 return -1; | |
934 } | |
935 | |
936 /* Clear errors */ | |
937 alGetError(); | |
938 | |
939 alGetBufferi(data->buffer[0], AL_FREQUENCY, &freq); | |
940 if((error = alGetError()) != AL_NO_ERROR) | |
941 { | |
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942 ALmixer_SetError("alGetBufferi(AL_FREQUENCY): %s", alGetString(error) ); |
0 | 943 free(data->sample); |
944 data->sample = NULL; | |
945 return -1; | |
946 } | |
947 | |
948 alGetBufferi(data->buffer[0], AL_BITS, &bits); | |
949 if((error = alGetError()) != AL_NO_ERROR) | |
950 { | |
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951 ALmixer_SetError("alGetBufferi(AL_BITS): %s", alGetString(error) ); |
0 | 952 free(data->sample); |
953 data->sample = NULL; | |
954 return -1; | |
955 } | |
956 | |
957 alGetBufferi(data->buffer[0], AL_CHANNELS, &channels); | |
958 if((error = alGetError()) != AL_NO_ERROR) | |
959 { | |
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960 ALmixer_SetError("alGetBufferi(AL_CHANNELS): %s", alGetString(error) ); |
0 | 961 free(data->sample); |
962 data->sample = NULL; | |
963 return -1; | |
964 } | |
965 | |
966 alGetBufferi(data->buffer[0], AL_SIZE, &size); | |
967 if((error = alGetError()) != AL_NO_ERROR) | |
968 { | |
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969 ALmixer_SetError("alGetBufferi(AL_SIZE): %s", alGetString(error) ); |
0 | 970 free(data->sample); |
971 data->sample = NULL; | |
972 return -1; | |
973 } | |
974 | |
975 alGetBufferi(data->buffer[0], AL_DATA, data_from_albuffer); | |
976 if((error = alGetError()) != AL_NO_ERROR) | |
977 { | |
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978 ALmixer_SetError("alGetBufferi(AL_DATA): %s", alGetString(error) ); |
0 | 979 free(data->sample); |
980 data->sample = NULL; | |
981 return -1; | |
982 } | |
983 | |
984 if(size <= 0) | |
985 { | |
986 ALmixer_SetError("No data in al buffer"); | |
987 free(data->sample); | |
988 data->sample = NULL; | |
989 return -1; | |
990 } | |
991 | |
992 /* Now that we have all the attributes, we need to | |
993 * allocate memory for the buffer and reconstruct | |
994 * the AudioInfo attributes. | |
995 */ | |
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996 data->sample->buffer = malloc(size*sizeof(ALbyte)); |
0 | 997 if(NULL == data->sample->buffer) |
998 { | |
999 ALmixer_SetError("Out of memory for sample->buffer"); | |
1000 free(data->sample); | |
1001 data->sample = NULL; | |
1002 return -1; | |
1003 } | |
1004 | |
1005 memcpy(data->sample->buffer, data_from_albuffer, size); | |
1006 data->sample->buffer_size = size; | |
1007 | |
1008 /* Fill up the Sound_AudioInfo structures */ | |
1009 Set_AudioInfo(&data->sample->desired, freq, bits, channels); | |
1010 Set_AudioInfo(&data->sample->actual, freq, bits, channels); | |
1011 | |
1012 return 0; | |
1013 } | |
1014 | |
1015 #endif /* End DISABLE_SEEK_MEMORY_OPTIMIZATION */ | |
1016 #endif | |
1017 /*************** END REMOVED *************************/ | |
1018 | |
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1019 static void Invoke_Channel_Done_Callback(ALint which_channel, ALboolean did_finish_naturally) |
0 | 1020 { |
1021 if(NULL == Channel_Done_Callback) | |
1022 { | |
1023 return; | |
1024 } | |
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1025 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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1026 } |
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1027 |
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1028 static ALint LookUpBuffer(ALuint buffer, ALmixer_Buffer_Map* buffer_map_list, ALuint num_items_in_list) |
0 | 1029 { |
1030 /* Only the first value is used for the key */ | |
1 | 1031 ALmixer_Buffer_Map key = { 0, 0, NULL, 0 }; |
1032 ALmixer_Buffer_Map* found_item = NULL; | |
0 | 1033 key.albuffer = buffer; |
1034 | |
1035 /* Use the ANSI C binary search feature (yea!) */ | |
1 | 1036 found_item = (ALmixer_Buffer_Map*)bsearch(&key, buffer_map_list, num_items_in_list, sizeof(ALmixer_Buffer_Map), Compare_Buffer_Map); |
0 | 1037 if(NULL == found_item) |
1038 { | |
1039 ALmixer_SetError("Can't find buffer"); | |
1040 return -1; | |
1041 } | |
1042 return found_item->index; | |
1043 } | |
1044 | |
1045 | |
1046 /* FIXME: Need to pass back additional info to be useful. | |
1047 * Bit rate, stereo/mono (num chans), time in msec? | |
1048 * Precoded/streamed flag so user can plan for future data? | |
1049 */ | |
1 | 1050 /* |
1051 * channels: 1 for mono, 2 for stereo | |
1052 * | |
1053 */ | |
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1054 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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1055 { |
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1056 ALboolean is_unsigned; |
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1057 ALubyte bits_per_sample = GetBitDepth(format); |
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1058 ALuint bytes_per_sample; |
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1059 ALuint length_in_msec; |
1 | 1060 |
1061 if(GetSignednessValue(format) == ALMIXER_UNSIGNED_VALUE) | |
1062 { | |
1063 is_unsigned = 1; | |
1064 } | |
1065 else | |
1066 { | |
1067 is_unsigned = 0; | |
1068 } | |
1069 | |
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1070 bytes_per_sample = (ALuint) (bits_per_sample / 8); |
1 | 1071 |
1072 length_in_msec = Compute_Total_Time_Decomposed(bytes_per_sample, frequency, channels, num_bytes); | |
1073 | |
0 | 1074 /* |
1075 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); | |
1076 */ | |
1077 if(NULL == Channel_Data_Callback) | |
1078 { | |
1079 return; | |
1080 } | |
1 | 1081 /* |
1082 * Channel_Data_Callback(which_channel, data, num_bytes, frequency, channels, GetBitDepth(format), format, decode_mode_is_predecoded); | |
1083 */ | |
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1084 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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1085 } |
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1086 |
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1087 static void Invoke_Predecoded_Channel_Data_Callback(ALint channel, ALmixer_Data* data) |
0 | 1088 { |
1089 if(NULL == data->sample) | |
1090 { | |
1091 return; | |
1092 } | |
1093 /* The buffer position is complicated because if the current data was seeked, | |
1094 * we must adjust the buffer to the seek position | |
1095 */ | |
1096 Invoke_Channel_Data_Callback(channel, | |
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1097 (((ALbyte*) data->sample->buffer) + (data->total_bytes - data->loaded_bytes) ), |
0 | 1098 data->loaded_bytes, |
1099 data->sample->desired.rate, | |
1100 data->sample->desired.channels, | |
1101 data->sample->desired.format, | |
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1102 AL_TRUE |
0 | 1103 ); |
1104 } | |
1105 | |
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1106 static void Invoke_Streamed_Channel_Data_Callback(ALint channel, ALmixer_Data* data, ALuint buffer) |
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1107 { |
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1108 ALint index; |
0 | 1109 if(NULL == data->buffer_map_list) |
1110 { | |
1111 return; | |
1112 } | |
1113 index = LookUpBuffer(buffer, data->buffer_map_list, data->max_queue_buffers); | |
1114 /* This should catch the case where all buffers are unqueued | |
1115 * and the "current" buffer is id: 0 | |
1116 */ | |
1117 if(-1 == index) | |
1118 { | |
1119 return; | |
1120 } | |
1121 Invoke_Channel_Data_Callback(channel, | |
1122 data->buffer_map_list[index].data, | |
1123 data->buffer_map_list[index].num_bytes, | |
1124 data->sample->desired.rate, | |
1125 data->sample->desired.channels, | |
1126 data->sample->desired.format, | |
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1127 AL_FALSE |
0 | 1128 ); |
1129 } | |
1130 | |
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1131 /* Converts milliseconds to byte positions. |
0 | 1132 * This is needed for seeking on predecoded samples |
1133 */ | |
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1134 static ALuint Convert_Msec_To_Byte_Pos(Sound_AudioInfo* audio_info, ALuint number_of_milliseconds) |
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1135 { |
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1136 ALuint bytes_per_sample; |
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1137 ALuint bytes_per_frame; |
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1138 float bytes_per_millisecond; |
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1139 float byte_position; |
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1140 |
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1141 if(audio_info == NULL) |
0 | 1142 { |
1143 fprintf(stderr, "Error, info is NULL\n"); | |
1144 } | |
1145 | |
22
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1146 /* SDL has a mask trick I was not aware of. Mask the upper bits |
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1147 * of the format, and you get 8 or 16 which is the bits per sample. |
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1148 * Divide by 8bits_per_bytes and you get bytes_per_sample |
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1149 * I tested this under 32-bit and 64-bit and big and little endian |
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1150 * to make sure this still works since I have since moved from |
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1151 * Uint32 to unspecified size types like ALuint. |
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1152 */ |
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1153 bytes_per_sample = (ALuint) ((audio_info->format & 0xFF) / 8); |
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1154 bytes_per_frame = bytes_per_sample * audio_info->channels; |
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1155 bytes_per_millisecond = (float)bytes_per_frame * (audio_info->rate / 1000.0f); |
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1156 byte_position = ((float)(number_of_milliseconds)) * bytes_per_millisecond; |
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1157 return (ALuint)(byte_position + 0.5); |
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1158 } |
0 | 1159 |
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1160 static ALint Set_Predecoded_Seek_Position(ALmixer_Data* data, ALuint byte_position) |
0 | 1161 { |
1162 ALenum error; | |
1163 /* clear error */ | |
1164 alGetError(); | |
1165 | |
1166 /* Is it greater than, or greater-than or equal to ?? */ | |
1167 if(byte_position > data->total_bytes) | |
1168 { | |
1169 /* We can't go past the end, so set to end? */ | |
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1170 /* |
0 | 1171 fprintf(stderr, "Error, can't seek past end\n"); |
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1172 */ |
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1173 |
0 | 1174 /* In case the below thing doesn't work, |
1175 * just rewind the whole thing. | |
1176 * | |
1177 alBufferData(data->buffer[0], | |
1178 TranslateFormat(&data->sample->desired), | |
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1179 (ALbyte*) data->sample->buffer, |
0 | 1180 data->total_bytes, |
1181 data->sample->desired.rate | |
1182 ); | |
1183 */ | |
1184 | |
1185 /* I was trying to set to the end, (1 byte remaining), | |
1186 * but I was getting freezes. I'm thinking it might be | |
1187 * another Power of 2 bug in the Loki dist. I tried 2, | |
1188 * and it still hung. 4 didn't hang, but I got a clip | |
1189 * artifact. 8 seemed to work okay. | |
1190 */ | |
1191 alBufferData(data->buffer[0], | |
1192 TranslateFormat(&data->sample->desired), | |
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1193 (((ALbyte*) data->sample->buffer) + (data->total_bytes - 8) ), |
0 | 1194 8, |
1195 data->sample->desired.rate | |
1196 ); | |
1197 if( (error = alGetError()) != AL_NO_ERROR) | |
1198 { | |
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1199 ALmixer_SetError("Can't seek past end and alBufferData failed: %s\n", alGetString(error)); |
0 | 1200 return -1; |
1201 } | |
1202 /* Need to set the loaded_bytes field because I don't trust the OpenAL | |
1203 * query command to work because I don't know if it will mutilate the | |
1204 * size for its own purposes or return the original size | |
1205 */ | |
1206 data->loaded_bytes = 8; | |
1207 | |
1208 /* Not sure if this should be an error or not */ | |
1209 /* | |
1210 ALmixer_SetError("Can't Seek past end"); | |
1211 return -1; | |
1212 */ | |
1213 return 0; | |
1214 } | |
1215 | |
1216 alBufferData(data->buffer[0], | |
1217 TranslateFormat(&data->sample->desired), | |
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1218 &(((ALbyte*)data->sample->buffer)[byte_position]), |
0 | 1219 data->total_bytes - byte_position, |
1220 data->sample->desired.rate | |
1221 ); | |
1222 if( (error = alGetError()) != AL_NO_ERROR) | |
1223 { | |
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1224 ALmixer_SetError("alBufferData failed: %s\n", alGetString(error)); |
0 | 1225 return -1; |
1226 } | |
1227 /* Need to set the loaded_bytes field because I don't trust the OpenAL | |
1228 * query command to work because I don't know if it will mutilate the | |
1229 * size for its own purposes or return the original size | |
1230 */ | |
1231 data->loaded_bytes = data->total_bytes - byte_position; | |
1232 | |
1233 return 0; | |
1234 } | |
1235 | |
1236 /* Because we have multiple queue buffers and OpenAL won't let | |
1237 * us access them, we need to keep copies of each buffer around | |
1238 */ | |
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1239 static ALint CopyDataToAccessBuffer(ALmixer_Data* data, ALuint num_bytes, ALuint buffer) |
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1240 { |
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1241 ALint index; |
0 | 1242 /* We only want to copy if access_data is true. |
1243 * This is determined by whether memory has been | |
1244 * allocated in the buffer_map_list or not | |
1245 */ | |
1246 if(NULL == data->buffer_map_list) | |
1247 { | |
1248 return -1; | |
1249 } | |
1250 index = LookUpBuffer(buffer, data->buffer_map_list, data->max_queue_buffers); | |
1251 if(-1 == index) | |
1252 { | |
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1253 /* |
0 | 1254 fprintf(stderr, ">>>>>>>CopyData catch, albuffer=%d\n",buffer); |
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1255 */ |
0 | 1256 return -1; |
1257 } | |
1258 /* Copy the data to the access buffer */ | |
1259 memcpy(data->buffer_map_list[index].data, data->sample->buffer, num_bytes); | |
1260 data->buffer_map_list[index].num_bytes = data->sample->buffer_size; | |
1261 | |
1262 return 0; | |
1263 } | |
1264 | |
1265 | |
1266 /* For streamed data, gets more data | |
1267 * and prepares it in the active Mix_chunk | |
1268 */ | |
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1269 static ALuint GetMoreData(ALmixer_Data* data, ALuint buffer) |
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1270 { |
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1271 ALuint bytes_decoded; |
0 | 1272 ALenum error; |
1273 if(NULL == data) | |
1274 { | |
1275 ALmixer_SetError("Cannot GetMoreData() because ALmixer_Data* is NULL\n"); | |
1276 return 0; | |
1277 } | |
1278 | |
1279 bytes_decoded = Sound_Decode(data->sample); | |
1280 if(data->sample->flags & SOUND_SAMPLEFLAG_ERROR) | |
1281 { | |
1282 fprintf(stderr, "Sound_Decode triggered an ERROR>>>>>>\n"); | |
1283 ALmixer_SetError(Sound_GetError()); | |
1284 /* Force cleanup through FreeData | |
1285 Sound_FreeSample(data->sample); | |
1286 */ | |
1287 return 0; | |
1288 } | |
1289 | |
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1290 /* fprintf(stderr, "GetMoreData bytes_decoded=%d\n", bytes_decoded); */ |
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1291 |
0 | 1292 /* Don't forget to add check for EOF */ |
1293 /* Will return 0 bytes and pass the buck to check sample->flags */ | |
1294 if(0 == bytes_decoded) | |
1295 { | |
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1296 data->eof = 1; |
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1297 |
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1298 #if 0 |
0 | 1299 fprintf(stderr, "Hit eof while trying to buffer\n"); |
1300 if(data->sample->flags & SOUND_SAMPLEFLAG_EOF) | |
1301 { | |
1302 fprintf(stderr, "\tEOF flag\n"); | |
1303 } | |
1304 if(data->sample->flags & SOUND_SAMPLEFLAG_CANSEEK) | |
1305 { | |
1306 fprintf(stderr, "\tCanSeek flag\n"); | |
1307 } | |
1308 if(data->sample->flags & SOUND_SAMPLEFLAG_EAGAIN) | |
1309 { | |
1310 fprintf(stderr, "\tEAGAIN flag\n"); | |
1311 } | |
1312 if(data->sample->flags & SOUND_SAMPLEFLAG_NONE) | |
1313 { | |
1314 fprintf(stderr, "\tNONE flag\n"); | |
1315 } | |
1316 #endif | |
1317 return 0; | |
1318 } | |
1319 | |
1320 #ifdef ENABLE_LOKI_QUEUE_FIX_HACK | |
1321 /******* REMOVE ME ********************************/ | |
1322 /***************** ANOTHER EXPERIEMENT *******************/ | |
1323 /* The PROBLEM: It seems that the Loki distribution has problems | |
1324 * with Queuing when the buffer size is not a power of two | |
1325 * and additional buffers must come after it. | |
1326 * The behavior is inconsistent, but one of several things | |
1327 * usually happens: | |
1328 * Playback is normal | |
1329 * Playback immediately stops after the non-pow2 buffer | |
1330 * Playback gets distorted on the non-pow2 buffer | |
1331 * The entire program segfaults. | |
1332 * The workaround is to always specify a power of two buffer size | |
1333 * and hope that SDL_sound always fill it. (By lucky coincidence, | |
1334 * I already submitted the Ogg fix.) However, this won't catch | |
1335 * cases where a loop happens because the read at the end of the | |
1336 * file is typically less than the buffer size. | |
1337 * | |
1338 * This fix addresses this issue, however it may break in | |
1339 * other conditions. Always decode in buffer sizes of powers of 2. | |
1340 * | |
1341 * The HACK: | |
1342 * If the buffer is short, try filling it up with 0's | |
1343 * to meet the user requested buffer_size which | |
1344 * is probably a nice number OpenAL likes, in | |
1345 * hopes to avoid a possible Loki bug with | |
1346 * short buffers. If looping (which is the main | |
1347 * reason for this), the negative side effect is | |
1348 * that it may take longer for the loop to start | |
1349 * because it must play dead silence. Or if the decoder | |
1350 * doesn't guarantee to return the requested bytes | |
1351 * (like Ogg), then you will get breakup in between | |
1352 * packets. | |
1353 */ | |
1354 if( (bytes_decoded) < data->sample->buffer_size) | |
1355 { | |
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1356 ALubyte bit_depth; |
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1357 ALubyte signedness_value; |
0 | 1358 int silence_value; |
1359 /* Crap, memset value needs to be the "silent" value, | |
1360 * but it will differ for signed/unsigned and bit depth | |
1361 */ | |
1362 bit_depth = GetBitDepth(data->sample->desired.format); | |
1363 signedness_value = GetSignednessValue(data->sample->desired.format); | |
1364 if(ALMIXER_SIGNED_VALUE == signedness_value) | |
1365 { | |
1366 /* I'm guessing that if it's signed, then 0 is the | |
1367 * "silent" value */ | |
1368 silence_value = 0; | |
1369 } | |
1370 else | |
1371 { | |
1372 if(8 == bit_depth) | |
1373 { | |
1374 /* If 8 bit, I'm guessing it's (2^7)-1 = 127 */ | |
1375 silence_value = 127; | |
1376 } | |
1377 else | |
1378 { | |
1379 /* For 16 bit, I'm guessing it's (2^15)-1 = 32767 */ | |
1380 silence_value = 32767; | |
1381 } | |
1382 } | |
1383 /* Now fill up the rest of the data buffer with the | |
1384 * silence_value. | |
1385 * I don't think I have to worry about endian issues for | |
1386 * this part since the data is for internal use only | |
1387 * at this point. | |
1388 */ | |
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1389 memset( &( ((ALbyte*)(data->sample->buffer))[bytes_decoded] ), silence_value, data->sample->buffer_size - bytes_decoded); |
0 | 1390 /* Now reset the bytes_decoded to reflect the entire |
1391 * buffer to tell alBufferData what our full size is. | |
1392 */ | |
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1393 /* |
0 | 1394 fprintf(stderr, "ALTERED bytes decoded for silence: Original end was %d\n", bytes_decoded); |
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1395 */ |
0 | 1396 bytes_decoded = data->sample->buffer_size; |
1397 } | |
1398 /*********** END EXPERIMENT ******************************/ | |
1399 /******* END REMOVE ME ********************************/ | |
1400 #endif | |
1401 | |
1402 /* Now copy the data to the OpenAL buffer */ | |
1403 /* We can't just set a pointer because the API needs | |
1404 * its own copy to assist hardware acceleration */ | |
1405 alBufferData(buffer, | |
1406 TranslateFormat(&data->sample->desired), | |
1407 data->sample->buffer, | |
1408 bytes_decoded, | |
1409 data->sample->desired.rate | |
1410 ); | |
1411 if( (error = alGetError()) != AL_NO_ERROR) | |
1412 { | |
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1413 ALmixer_SetError("alBufferData failed: %s\n", alGetString(error)); |
0 | 1414 return 0; |
1415 } | |
1416 | |
1417 /* If we need to, copy the data also to the access area | |
1418 * (the function will do the check for us) | |
1419 */ | |
1420 CopyDataToAccessBuffer(data, bytes_decoded, buffer); | |
1421 return bytes_decoded; | |
1422 } | |
1423 | |
1424 | |
1425 | |
1426 | |
1427 /******************** EXPERIEMENT **************************** | |
1428 * Test function to force maximum buffer filling during loops | |
1429 * REMOVE LATER | |
1430 *********************************************/ | |
1431 #if 0 | |
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1432 static ALint GetMoreData2(ALmixer_Data* data, ALuint buffer) |
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1433 { |
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1434 ALint bytes_decoded; |
0 | 1435 ALenum error; |
1436 if(NULL == data) | |
1437 { | |
1438 ALmixer_SetError("Cannot GetMoreData() because ALmixer_Data* is NULL\n"); | |
1439 return -1; | |
1440 } | |
1441 | |
1442 if(AL_FALSE == alIsBuffer(buffer)) | |
1443 { | |
1444 fprintf(stderr, "NOT A BUFFER>>>>>>>>>>>>>>>\n"); | |
1445 return -1; | |
1446 } | |
1447 fprintf(stderr, "Entered GetMoreData222222: buffer id is %d\n", buffer); | |
1448 | |
1449 /* | |
1450 fprintf(stderr, "Decode in GetMoreData\n"); | |
1451 */ | |
1452 | |
1453 #if 0 | |
1454 if(buffer%2 == 1) | |
1455 { | |
1456 fprintf(stderr, "Setting buffer size to 16384\n"); | |
1457 Sound_SetBufferSize(data->sample, 16384); | |
1458 } | |
1459 else | |
1460 { | |
1461 fprintf(stderr, "Setting buffer size to 8192\n"); | |
1462 Sound_SetBufferSize(data->sample, 8192); | |
1463 } | |
1464 #endif | |
1465 | |
1466 bytes_decoded = Sound_Decode(data->sample); | |
1467 if(data->sample->flags & SOUND_SAMPLEFLAG_ERROR) | |
1468 { | |
1469 fprintf(stderr, "Sound_Decode triggered an ERROR>>>>>>\n"); | |
1470 ALmixer_SetError(Sound_GetError()); | |
1471 /* | |
1472 Sound_FreeSample(data->sample); | |
1473 */ | |
1474 return -1; | |
1475 } | |
1476 /* Don't forget to add check for EOF */ | |
1477 /* Will return 0 bytes and pass the buck to check sample->flags */ | |
1478 if(0 == bytes_decoded) | |
1479 { | |
1480 #if 1 | |
1481 fprintf(stderr, "Hit eof while trying to buffer\n"); | |
1482 data->eof = 1; | |
1483 if(data->sample->flags & SOUND_SAMPLEFLAG_EOF) | |
1484 { | |
1485 fprintf(stderr, "\tEOF flag\n"); | |
1486 } | |
1487 if(data->sample->flags & SOUND_SAMPLEFLAG_CANSEEK) | |
1488 { | |
1489 fprintf(stderr, "\tCanSeek flag\n"); | |
1490 } | |
1491 if(data->sample->flags & SOUND_SAMPLEFLAG_EAGAIN) | |
1492 { | |
1493 fprintf(stderr, "\tEAGAIN flag\n"); | |
1494 } | |
1495 if(data->sample->flags & SOUND_SAMPLEFLAG_NONE) | |
1496 { | |
1497 fprintf(stderr, "\tNONE flag\n"); | |
1498 } | |
1499 #endif | |
1500 return 0; | |
1501 } | |
1502 | |
1503 if(bytes_decoded < 16384) | |
1504 { | |
1505 char* tempbuffer1 = (char*)malloc(16384); | |
1506 char* tempbuffer2 = (char*)malloc(16384); | |
1507 int retval; | |
1508 memcpy(tempbuffer1, data->sample->buffer, bytes_decoded); | |
1509 retval = Sound_SetBufferSize(data->sample, 16384-bytes_decoded); | |
1510 if(retval == 1) | |
1511 { | |
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1512 ALuint new_bytes; |
0 | 1513 Sound_Rewind(data->sample); |
1514 new_bytes = Sound_Decode(data->sample); | |
1515 fprintf(stderr, "Orig bytes: %d, Make up bytes_decoded=%d, total=%d\n", bytes_decoded, new_bytes, new_bytes+bytes_decoded); | |
1516 | |
1517 memcpy(tempbuffer2, data->sample->buffer, new_bytes); | |
1518 | |
1519 retval = Sound_SetBufferSize(data->sample, 16384); | |
1520 fprintf(stderr, "Finished reset...now danger copy\n"); | |
1521 memcpy(data->sample->buffer, tempbuffer1,bytes_decoded); | |
1522 | |
1523 fprintf(stderr, "Finished reset...now danger copy2\n"); | |
1524 memcpy( &( ((char*)(data->sample->buffer))[bytes_decoded] ), tempbuffer2, new_bytes); | |
1525 | |
1526 fprintf(stderr, "Finished \n"); | |
1527 | |
1528 free(tempbuffer1); | |
1529 free(tempbuffer2); | |
1530 bytes_decoded += new_bytes; | |
1531 fprintf(stderr, "ASSERT bytes should equal 16384: %d\n", bytes_decoded); | |
1532 } | |
1533 else | |
1534 { | |
1535 fprintf(stderr, "Experiment failed: %s\n", Sound_GetError()); | |
1536 } | |
1537 } | |
1538 | |
1539 /* Now copy the data to the OpenAL buffer */ | |
1540 /* We can't just set a pointer because the API needs | |
1541 * its own copy to assist hardware acceleration */ | |
1542 alBufferData(buffer, | |
1543 TranslateFormat(&data->sample->desired), | |
1544 data->sample->buffer, | |
1545 bytes_decoded, | |
1546 data->sample->desired.rate | |
1547 ); | |
1548 if( (error = alGetError()) != AL_NO_ERROR) | |
1549 { | |
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1550 ALmixer_SetError("alBufferData failed: %s\n", alGetString(error)); |
0 | 1551 return -1; |
1552 } | |
1553 | |
1554 fprintf(stderr, "GetMoreData2222 returning %d bytes decoded\n", bytes_decoded); | |
1555 return bytes_decoded; | |
1556 } | |
1557 #endif | |
1558 | |
1559 /************ END EXPERIEMENT - REMOVE ME *************************/ | |
1560 | |
1561 | |
1562 | |
1563 | |
1564 | |
1565 | |
1566 | |
1567 | |
1568 | |
1569 /* This function will look up the source for the corresponding channel */ | |
1570 /* Must return 0 on error instead of -1 because of unsigned int */ | |
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1571 static ALuint Internal_GetSource(ALint channel) |
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1572 { |
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1573 ALint i; |
0 | 1574 /* Make sure channel is in bounds */ |
1575 if(channel >= Number_of_Channels_global) | |
1576 { | |
1577 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); | |
1578 return 0; | |
1579 } | |
1580 /* If the user specified -1, then return the an available source */ | |
1581 if(channel < 0) | |
1582 { | |
1583 for(i=Number_of_Reserve_Channels_global; i<Number_of_Channels_global; i++) | |
1584 { | |
1585 if( ! ALmixer_Channel_List[i].channel_in_use ) | |
1586 { | |
1587 return ALmixer_Channel_List[i].alsource; | |
1588 } | |
1589 } | |
1590 /* If we get here, all sources are in use */ | |
1591 /* Error message seems too harsh | |
1592 ALmixer_SetError("All sources are in use"); | |
1593 */ | |
1594 return 0; | |
1595 } | |
1596 /* Last case: Return the source for the channel */ | |
1597 return ALmixer_Channel_List[channel].alsource; | |
1598 } | |
1599 | |
1600 /* This function will look up the channel for the corresponding source */ | |
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1601 static ALint Internal_GetChannel(ALuint source) |
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1602 { |
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1603 ALint i; |
0 | 1604 /* Only the first value is used for the key */ |
1605 Source_Map key = { 0, 0 }; | |
1606 Source_Map* found_item = NULL; | |
1607 key.source = source; | |
1608 | |
1609 /* If the source is 0, look up the first available channel */ | |
1610 if(0 == source) | |
1611 { | |
1612 for(i=Number_of_Reserve_Channels_global; i<Number_of_Channels_global; i++) | |
1613 { | |
1614 if( ! ALmixer_Channel_List[i].channel_in_use ) | |
1615 { | |
1616 return i; | |
1617 } | |
1618 } | |
1619 /* If we get here, all sources are in use */ | |
1620 /* Error message seems too harsh | |
1621 ALmixer_SetError("All channels are in use"); | |
1622 */ | |
1623 return -1; | |
1624 } | |
1625 | |
1626 | |
1627 /* Else, look up the source and return the channel */ | |
1628 if(AL_FALSE == alIsSource(source)) | |
1629 { | |
1630 ALmixer_SetError("Is not a source"); | |
1631 return -1; | |
1632 } | |
1633 | |
1634 /* Use the ANSI C binary search feature (yea!) */ | |
1635 found_item = (Source_Map*)bsearch(&key, Source_Map_List, Number_of_Channels_global, sizeof(Source_Map), Compare_Source_Map); | |
1636 if(NULL == found_item) | |
1637 { | |
1638 ALmixer_SetError("Source is valid but not registered with ALmixer (to a channel)"); | |
1639 return -1; | |
1640 } | |
1641 return found_item->channel; | |
1642 } | |
1643 | |
1644 | |
1645 | |
1646 /* This function will find the first available channel (not in use) | |
1647 * from the specified start channel. Reserved channels to not qualify | |
1648 * as available. | |
1649 */ | |
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1650 static ALint Internal_FindFreeChannel(ALint start_channel) |
0 | 1651 { |
1652 /* Start at the number of reserved so we skip over | |
1653 * all the reserved channels. | |
1654 */ | |
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1655 ALint i = Number_of_Reserve_Channels_global; |
0 | 1656 /* Quick check to see if we're out of bounds */ |
1657 if(start_channel >= Number_of_Channels_global) | |
1658 { | |
1659 return -1; | |
1660 } | |
1661 | |
1662 /* If the start channel is even higher than the reserved, | |
1663 * then start at the higher value. | |
1664 */ | |
1665 if(start_channel > Number_of_Reserve_Channels_global) | |
1666 { | |
1667 i = start_channel; | |
1668 } | |
1669 | |
1670 /* i has already been set */ | |
1671 for( ; i<Number_of_Channels_global; i++) | |
1672 { | |
1673 if( ! ALmixer_Channel_List[i].channel_in_use ) | |
1674 { | |
1675 return i; | |
1676 } | |
1677 } | |
1678 /* If we get here, all sources are in use */ | |
1679 return -1; | |
1680 } | |
1681 | |
1682 | |
1683 | |
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1684 /* Will return the number of channels halted |
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1685 * or 0 for error |
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1686 */ |
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1687 static ALint Internal_HaltChannel(ALint channel, ALboolean did_finish_naturally) |
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1688 { |
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1689 ALint retval = 0; |
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1690 ALint counter = 0; |
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1691 ALenum error; |
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1692 ALint buffers_still_queued; |
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1693 ALint buffers_processed; |
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1694 |
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1695 if(channel >= Number_of_Channels_global) |
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1696 { |
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1697 ALmixer_SetError("Cannot halt channel %d because it exceeds maximum number of channels (%d)\n", channel, Number_of_Channels_global); |
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1698 return -1; |
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1699 } |
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1700 /* If the user specified a specific channel */ |
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1701 if(channel >= 0) |
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1702 { |
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1703 /* only need to process channel if in use */ |
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1704 if(ALmixer_Channel_List[channel].channel_in_use) |
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1705 { |
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1706 alSourceStop(ALmixer_Channel_List[channel].alsource); |
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1707 if((error = alGetError()) != AL_NO_ERROR) |
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1708 { |
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1709 fprintf(stderr, "14Testing error: %s\n", |
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1710 alGetString(error)); |
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1711 } |
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1712 /* Here's the situation. My old method of using |
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1713 * alSourceUnqueueBuffers() seemed to be invalid in light |
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1714 * of all the problems I suffered through with getting |
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1715 * the CoreData backend to work with this code. |
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1716 * As such, I'm changing all the code to set the buffer to |
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1717 * AL_NONE. Furthermore, the queued vs. non-queued issue |
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1718 * doesn't need to apply here. For non-queued, Loki, |
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1719 * Creative Windows, and CoreAudio seem to leave the |
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1720 * buffer queued (Old Mac didn't.) For queued, we need to |
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1721 * remove the processed buffers and force remove the |
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1722 * still-queued buffers. |
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1723 */ |
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1724 alGetSourcei( |
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1725 ALmixer_Channel_List[channel].alsource, |
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1726 AL_BUFFERS_QUEUED, &buffers_still_queued |
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1727 ); |
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1728 if((error = alGetError()) != AL_NO_ERROR) |
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1729 { |
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1730 fprintf(stderr, "17Testing Error with buffers_still_queued: %s", |
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1731 alGetString(error)); |
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1732 ALmixer_SetError("Failed detecting still queued buffers: %s", |
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1733 alGetString(error) ); |
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1734 retval = -1; |
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1735 } |
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1736 alGetSourcei( |
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1737 ALmixer_Channel_List[channel].alsource, |
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1738 AL_BUFFERS_PROCESSED, &buffers_processed |
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1739 ); |
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1740 if((error = alGetError()) != AL_NO_ERROR) |
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1741 { |
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1742 fprintf(stderr, "17Testing Error with buffers_processed: %s", |
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1743 alGetString(error)); |
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1744 ALmixer_SetError("Failed detecting still processed buffers: %s", |
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1745 alGetString(error) ); |
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1746 retval = -1; |
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1747 } |
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1748 /* If either of these is greater than 0, it means we need |
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1749 * to clear the source |
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1750 */ |
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1751 if((buffers_still_queued > 0) || (buffers_processed > 0)) |
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1752 { |
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1753 alSourcei(ALmixer_Channel_List[channel].alsource, |
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1754 AL_BUFFER, |
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1755 AL_NONE); |
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1756 if((error = alGetError()) != AL_NO_ERROR) |
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1757 { |
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1758 fprintf(stderr, "17Testing Error with clearing buffer from source: %s", |
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1759 alGetString(error)); |
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1760 ALmixer_SetError("Failed to clear buffer from source: %s", |
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1761 alGetString(error) ); |
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1762 retval = -1; |
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1763 } |
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1764 } |
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1765 |
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1766 ALmixer_Channel_List[channel].almixer_data->num_buffers_in_use = 0; |
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1767 |
10
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1768 /* Launch callback for consistency? */ |
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1769 Invoke_Channel_Done_Callback(channel, did_finish_naturally); |
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1770 |
2
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1771 Clean_Channel(channel); |
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1772 Is_Playing_global--; |
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1773 counter++; |
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1774 } |
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1775 } |
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1776 /* The user wants to halt all channels */ |
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1777 else |
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1778 { |
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1779 ALint i; |
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1780 for(i=0; i<Number_of_Channels_global; i++) |
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1781 { |
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1782 /* only need to process channel if in use */ |
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1783 if(ALmixer_Channel_List[i].channel_in_use) |
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1784 { |
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1785 alSourceStop(ALmixer_Channel_List[i].alsource); |
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1786 if((error = alGetError()) != AL_NO_ERROR) |
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1787 { |
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1788 fprintf(stderr, "19Testing error: %s\n", |
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1789 alGetString(error)); |
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1790 } |
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1791 |
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1792 /* Here's the situation. My old method of using |
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1793 * alSourceUnqueueBuffers() seemed to be invalid in light |
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1794 * of all the problems I suffered through with getting |
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1795 * the CoreData backend to work with this code. |
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1796 * As such, I'm changing all the code to set the buffer to |
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1797 * AL_NONE. Furthermore, the queued vs. non-queued issue |
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1798 * doesn't need to apply here. For non-queued, Loki, |
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1799 * Creative Windows, and CoreAudio seem to leave the |
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1800 * buffer queued (Old Mac didn't.) For queued, we need to |
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1801 * remove the processed buffers and force remove the |
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1802 * still-queued buffers. |
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1803 */ |
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1804 alGetSourcei( |
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1805 ALmixer_Channel_List[i].alsource, |
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1806 AL_BUFFERS_QUEUED, &buffers_still_queued |
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1807 ); |
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1808 if((error = alGetError()) != AL_NO_ERROR) |
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1809 { |
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1810 fprintf(stderr, "17Testing Error with buffers_still_queued: %s", |
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1811 alGetString(error)); |
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1812 ALmixer_SetError("Failed detecting still queued buffers: %s", |
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1813 alGetString(error) ); |
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1814 retval = -1; |
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1815 } |
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1816 alGetSourcei( |
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1817 ALmixer_Channel_List[i].alsource, |
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1818 AL_BUFFERS_PROCESSED, &buffers_processed |
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1819 ); |
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1820 if((error = alGetError()) != AL_NO_ERROR) |
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1821 { |
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1822 fprintf(stderr, "17Testing Error with buffers_processed: %s", |
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1823 alGetString(error)); |
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1824 ALmixer_SetError("Failed detecting still processed buffers: %s", |
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1825 alGetString(error) ); |
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1826 retval = -1; |
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1827 } |
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1828 /* If either of these is greater than 0, it means we need |
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1829 * to clear the source |
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1830 */ |
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1831 if((buffers_still_queued > 0) || (buffers_processed > 0)) |
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1832 { |
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1833 alSourcei(ALmixer_Channel_List[i].alsource, |
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1834 AL_BUFFER, |
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1835 AL_NONE); |
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1836 if((error = alGetError()) != AL_NO_ERROR) |
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1837 { |
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1838 fprintf(stderr, "17Testing Error with clearing buffer from source: %s", |
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1839 alGetString(error)); |
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1840 ALmixer_SetError("Failed to clear buffer from source: %s", |
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1841 alGetString(error) ); |
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1842 retval = -1; |
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1843 } |
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1844 } |
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1845 |
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1846 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use = 0; |
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1847 |
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1848 /* Launch callback for consistency? */ |
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1849 Invoke_Channel_Done_Callback(i, did_finish_naturally); |
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1850 |
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1851 Clean_Channel(i); |
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1852 Is_Playing_global--; |
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1853 |
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1854 /* Increment the counter */ |
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1855 counter++; |
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1856 } |
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1857 /* Let's halt everything just in case there |
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1858 * are bugs. |
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1859 */ |
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1860 /* |
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1861 else |
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1862 { |
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1863 alSourceStop(ALmixer_Channel_List[channel].alsource); |
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1864 / * Can't clean because the in_use counter for |
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1865 * data will get messed up * / |
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1866 Clean_Channel(channel); |
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1867 } |
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1868 */ |
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1869 /* Just in case */ |
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1870 Is_Playing_global = 0; |
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1871 } |
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1872 } |
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1873 if(-1 == retval) |
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1874 { |
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1875 return -1; |
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1876 } |
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1877 return counter; |
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1878 } |
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1879 |
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1880 |
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1881 /* Will return the source halted or the total number of channels |
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1882 * if all were halted or 0 for error |
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1883 */ |
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1884 static ALint Internal_HaltSource(ALuint source, ALboolean did_finish_naturally) |
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1885 { |
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1886 ALint channel; |
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1887 if(0 == source) |
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1888 { |
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1889 /* Will return the number of sources halted */ |
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1890 return Internal_HaltChannel(-1, did_finish_naturally); |
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1891 } |
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1892 |
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1893 channel = Internal_GetChannel(source); |
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1894 if(-1 == channel) |
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1895 { |
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1896 ALmixer_SetError("Cannot halt source: %s", ALmixer_GetError()); |
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1897 return -1; |
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1898 } |
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1899 return Internal_HaltChannel(channel, did_finish_naturally); |
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1900 } |
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1901 |
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1902 |
0 | 1903 |
1904 /* Note: Behaves, almost like SDL_mixer, but keep in mind | |
1905 * that there is no "music" channel anymore, so 0 | |
1906 * will remove everything. (Note, I no longer allow 0 | |
1907 * so it gets set to the default number.) | |
1908 * Also, callbacks for deleted channels will not be called. | |
1909 * I really need to do error checking, for realloc and | |
1910 * GenSources, but reversing the damage is too painful | |
1911 * for me to think about at the moment, so it's not in here. | |
1912 */ | |
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1913 static ALint Internal_AllocateChannels(ALint numchans) |
0 | 1914 { |
1915 ALenum error; | |
1916 int i; | |
1917 /* Return info */ | |
1918 if(numchans < 0) | |
1919 { | |
1920 return Number_of_Channels_global; | |
1921 } | |
1922 if(0 == numchans) | |
1923 { | |
1924 numchans = ALMIXER_DEFAULT_NUM_CHANNELS; | |
1925 } | |
1926 /* No change */ | |
1927 if(numchans == Number_of_Channels_global) | |
1928 { | |
1929 return Number_of_Channels_global; | |
1930 } | |
1931 /* We need to increase the number of channels */ | |
1932 if(numchans > Number_of_Channels_global) | |
1933 { | |
1934 /* Not sure how safe this is, but SDL_mixer does it | |
1935 * the same way */ | |
1936 ALmixer_Channel_List = (struct ALmixer_Channel*) realloc( ALmixer_Channel_List, numchans * sizeof(struct ALmixer_Channel)); | |
1937 | |
1938 /* Allocate memory for the list of sources that map to the channels */ | |
1939 Source_Map_List = (Source_Map*) realloc(Source_Map_List, numchans * sizeof(Source_Map)); | |
1940 | |
1941 for(i=Number_of_Channels_global; i<numchans; i++) | |
1942 { | |
1943 Init_Channel(i); | |
1944 /* Generate a new source and associate it with the channel */ | |
1945 alGenSources(1, &ALmixer_Channel_List[i].alsource); | |
1946 if((error = alGetError()) != AL_NO_ERROR) | |
1947 { | |
1948 fprintf(stderr, "12Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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1949 alGetString(error)); |
0 | 1950 } |
1951 /* Copy the source so the SourceMap has it too */ | |
1952 Source_Map_List[i].source = ALmixer_Channel_List[i].alsource; | |
1953 Source_Map_List[i].channel = i; | |
1954 /* Clean the channel because there are some things that need to | |
1955 * be done that can't happen until the source is set | |
1956 */ | |
1957 Clean_Channel(i); | |
1958 } | |
1959 | |
1960 /* The Source_Map_List must be sorted by source for binary searches | |
1961 */ | |
1962 qsort(Source_Map_List, numchans, sizeof(Source_Map), Compare_Source_Map); | |
1963 | |
1964 Number_of_Channels_global = numchans; | |
1965 return numchans; | |
1966 } | |
1967 /* Need to remove channels. This might be dangerous */ | |
1968 if(numchans < Number_of_Channels_global) | |
1969 { | |
1970 for(i=numchans; i<Number_of_Channels_global; i++) | |
1971 { | |
1972 /* Halt the channel */ | |
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1973 Internal_HaltChannel(i, AL_FALSE); |
0 | 1974 |
1975 /* Delete source associated with the channel */ | |
1976 alDeleteSources(1, &ALmixer_Channel_List[i].alsource); | |
1977 if((error = alGetError()) != AL_NO_ERROR) | |
1978 { | |
1979 fprintf(stderr, "13Testing error: %s\n", | |
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1980 alGetString(error)); |
0 | 1981 } |
1982 } | |
1983 | |
1984 | |
1985 /* Not sure how safe this is, but SDL_mixer does it | |
1986 * the same way */ | |
1987 ALmixer_Channel_List = (struct ALmixer_Channel*) realloc( ALmixer_Channel_List, numchans * sizeof(struct ALmixer_Channel)); | |
1988 | |
1989 /* The tricky part is that we must remove the entries | |
1990 * in the source map that correspond to the deleted channels. | |
1991 * We'll resort the map by channels so we can pick them off | |
1992 * in order. | |
1993 */ | |
1994 qsort(Source_Map_List, Number_of_Channels_global, sizeof(Source_Map), Compare_Source_Map_by_channel); | |
1995 | |
1996 /* Deallocate memory for the list of sources that map to the channels */ | |
1997 Source_Map_List = (Source_Map*) realloc(Source_Map_List, numchans * sizeof(Source_Map)); | |
1998 | |
1999 /* Now resort the map by source and the correct num of chans */ | |
2000 qsort(Source_Map_List, numchans, sizeof(Source_Map), Compare_Source_Map); | |
2001 | |
2002 /* Reset the number of channels */ | |
2003 Number_of_Channels_global = numchans; | |
2004 return numchans; | |
2005 } | |
2006 /* Shouldn't ever reach here */ | |
2007 return -1; | |
2008 | |
2009 } | |
2010 | |
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2011 static ALint Internal_ReserveChannels(ALint num) |
0 | 2012 { |
2013 /* Can't reserve more than the max num of channels */ | |
2014 /* Actually, I'll allow it for people who just want to | |
2015 * set the value really high to effectively disable | |
2016 * auto-assignment | |
2017 */ | |
2018 | |
2019 /* Return the current number of reserved channels */ | |
2020 if(num < 0) | |
2021 { | |
2022 return Number_of_Reserve_Channels_global; | |
2023 } | |
2024 Number_of_Reserve_Channels_global = num; | |
2025 return Number_of_Reserve_Channels_global; | |
2026 } | |
2027 | |
2028 | |
2029 /* This will rewind the SDL_Sound sample for streamed | |
2030 * samples and start buffering up the data for the next | |
2031 * playback. This may require samples to be halted | |
2032 */ | |
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2033 static ALboolean Internal_RewindData(ALmixer_Data* data) |
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2034 { |
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2035 ALint retval = 0; |
0 | 2036 /* |
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2037 ALint bytes_returned; |
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2038 ALint i; |
0 | 2039 */ |
2040 if(NULL == data) | |
2041 { | |
2042 ALmixer_SetError("Cannot rewind because data is NULL\n"); | |
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2043 return AL_FALSE; |
0 | 2044 } |
2045 | |
2046 | |
2047 /* Might have to require Halt */ | |
2048 /* Okay, we assume Halt or natural stop has already | |
2049 * cleared the data buffers | |
2050 */ | |
2051 if(data->in_use) | |
2052 { | |
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2053 /* |
0 | 2054 fprintf(stderr, "Warning sample is in use. May not be able to rewind\n"); |
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2055 */ |
0 | 2056 /* |
2057 ALmixer_SetError("Data is in use. Cannot rewind unless all sources using the data are halted\n"); | |
2058 return -1; | |
2059 */ | |
2060 } | |
2061 | |
2062 | |
2063 /* Because Seek can alter things even in predecoded data, | |
2064 * decoded data must also be rewound | |
2065 */ | |
2066 if(data->decoded_all) | |
2067 { | |
2068 data->eof = 0; | |
2069 | |
2070 #if 0 | |
2071 #if defined(DISABLE_PREDECODED_SEEK) | |
2072 /* Since we can't seek predecoded stuff, it should be rewound */ | |
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2073 return AL_TRUE; |
0 | 2074 #elif !defined(DISABLE_SEEK_MEMORY_OPTIMIZATION) |
2075 /* This case is if the Sound_Sample has been deleted. | |
2076 * It assumes the data is already at the beginning. | |
2077 */ | |
2078 if(NULL == data->sample) | |
2079 { | |
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2080 return AL_TRUE; |
0 | 2081 } |
2082 /* Else, the sample has already been reallocated, | |
2083 * and we can fall to normal behavior | |
2084 */ | |
2085 #endif | |
2086 #endif | |
2087 /* If access_data, was enabled, the sound sample | |
2088 * still exists and we can do stuff. | |
2089 * If it's NULL, we can't do anything, but | |
2090 * it should already be "rewound". | |
2091 */ | |
2092 if(NULL == data->sample) | |
2093 { | |
12
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2094 return AL_TRUE; |
0 | 2095 } |
2096 /* Else, the sample has already been reallocated, | |
2097 * and we can fall to normal behavior | |
2098 */ | |
2099 | |
2100 Set_Predecoded_Seek_Position(data, 0); | |
2101 /* | |
2102 return data->total_bytes; | |
2103 */ | |
12
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2104 return AL_TRUE; |
0 | 2105 } |
2106 | |
2107 /* Remaining stuff for streamed data */ | |
2108 | |
2109 data->eof = 0; | |
2110 retval = Sound_Rewind(data->sample); | |
2111 if(0 == retval) | |
2112 { | |
2113 ALmixer_SetError( Sound_GetError() ); | |
12
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2114 return AL_FALSE; |
0 | 2115 } |
2116 #if 0 | |
2117 /* Clear error */ | |
2118 alGetError(); | |
2119 for(i=0; i<data->num_buffers; i++) | |
2120 { | |
2121 bytes_returned = GetMoreData(data, data->buffer[i]); | |
2122 if(-1 == bytes_returned) | |
2123 { | |
12
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2124 return AL_FALSE; |
0 | 2125 } |
2126 else if(0 == bytes_returned) | |
2127 { | |
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2128 return AL_FALSE; |
0 | 2129 } |
2130 retval += bytes_returned; | |
2131 | |
2132 } | |
2133 #endif | |
2134 | |
2135 | |
2136 | |
12
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2137 return AL_TRUE; |
0 | 2138 } |
2139 | |
2140 | |
2141 | |
2142 | |
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2143 static ALint Internal_RewindChannel(ALint channel) |
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2144 { |
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2145 ALint retval = 0; |
0 | 2146 ALenum error; |
2147 ALint state; | |
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2148 ALint running_count = 0; |
0 | 2149 |
2150 if(channel >= Number_of_Channels_global) | |
2151 { | |
2152 ALmixer_SetError("Cannot rewind channel %d because it exceeds maximum number of channels (%d)\n", channel, Number_of_Channels_global); | |
2153 return -1; | |
2154 } | |
2155 | |
2156 if((error = alGetError()) != AL_NO_ERROR) | |
2157 { | |
2158 fprintf(stderr, "24Testing error: %s\n", | |
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2159 alGetString(error)); |
0 | 2160 } |
2161 /* Clear error */ | |
2162 alGetError(); | |
2163 | |
2164 /* If the user specified a specific channel */ | |
2165 if(channel >= 0) | |
2166 { | |
2167 /* only need to process channel if in use */ | |
2168 if(ALmixer_Channel_List[channel].channel_in_use) | |
2169 { | |
2170 | |
2171 /* What should I do? Do I just rewind the channel | |
2172 * or also rewind the data? Since the data is | |
2173 * shared, let's make it the user's responsibility | |
2174 * to rewind the data. | |
2175 */ | |
2176 if(ALmixer_Channel_List[channel].almixer_data->decoded_all) | |
2177 { | |
2178 alGetSourcei( | |
2179 ALmixer_Channel_List[channel].alsource, | |
2180 AL_SOURCE_STATE, &state | |
2181 ); | |
2182 if((error = alGetError()) != AL_NO_ERROR) | |
2183 { | |
2184 fprintf(stderr, "25Testing error: %s\n", | |
2
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2185 alGetString(error)); |
0 | 2186 } |
2187 alSourceRewind(ALmixer_Channel_List[channel].alsource); | |
2188 if((error = alGetError()) != AL_NO_ERROR) | |
2189 { | |
2190 ALmixer_SetError("%s", | |
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2191 alGetString(error) ); |
0 | 2192 retval = -1; |
2193 } | |
2194 /* Need to resume playback if it was originally playing */ | |
2195 if(AL_PLAYING == state) | |
2196 { | |
2197 alSourcePlay(ALmixer_Channel_List[channel].alsource); | |
2198 if((error = alGetError()) != AL_NO_ERROR) | |
2199 { | |
2200 ALmixer_SetError("%s", | |
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2201 alGetString(error) ); |
0 | 2202 retval = -1; |
2203 } | |
2204 } | |
2205 else if(AL_PAUSED == state) | |
2206 { | |
2207 /* HACK: The problem is that when paused, after | |
2208 * the Rewind, I can't get it off the INITIAL | |
2209 * state without restarting | |
2210 */ | |
2211 alSourcePlay(ALmixer_Channel_List[channel].alsource); | |
2212 if((error = alGetError()) != AL_NO_ERROR) | |
2213 { | |
2214 fprintf(stderr, "25Testing error: %s\n", | |
2
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2215 alGetString(error)); |
0 | 2216 } |
2217 alSourcePause(ALmixer_Channel_List[channel].alsource); | |
2218 if((error = alGetError()) != AL_NO_ERROR) | |
2219 { | |
2220 ALmixer_SetError("%s", | |
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2221 alGetString(error) ); |
0 | 2222 retval = -1; |
2223 } | |
2224 } | |
2225 } | |
2226 else | |
2227 { | |
2228 /* Streamed data is different. Rewinding the channel | |
2229 * does no good. Rewinding the data will have an | |
2230 * effect, but it will be lagged based on how | |
2231 * much data is queued. Recommend users call Halt | |
2232 * before rewind if they want immediate results. | |
2233 */ | |
2234 retval = Internal_RewindData(ALmixer_Channel_List[channel].almixer_data); | |
2235 } | |
2236 } | |
2237 } | |
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2238 /* The user wants to rewind all channels */ |
0 | 2239 else |
2240 { | |
2
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2241 ALint i; |
0 | 2242 for(i=0; i<Number_of_Channels_global; i++) |
2243 { | |
2244 /* only need to process channel if in use */ | |
2245 if(ALmixer_Channel_List[i].channel_in_use) | |
2246 { | |
2247 /* What should I do? Do I just rewind the channel | |
2248 * or also rewind the data? Since the data is | |
2249 * shared, let's make it the user's responsibility | |
2250 * to rewind the data. | |
2251 */ | |
2252 if(ALmixer_Channel_List[i].almixer_data->decoded_all) | |
2253 { | |
2254 alGetSourcei( | |
2255 ALmixer_Channel_List[i].alsource, | |
2256 AL_SOURCE_STATE, &state | |
2257 ); | |
2258 if((error = alGetError()) != AL_NO_ERROR) | |
2259 { | |
2260 fprintf(stderr, "26Testing error: %s\n", | |
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2261 alGetString(error)); |
0 | 2262 } |
2263 alSourceRewind(ALmixer_Channel_List[i].alsource); | |
2264 if((error = alGetError()) != AL_NO_ERROR) | |
2265 { | |
2266 ALmixer_SetError("%s", | |
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2267 alGetString(error) ); |
0 | 2268 retval = -1; |
2269 } | |
2270 /* Need to resume playback if it was originally playing */ | |
2271 if(AL_PLAYING == state) | |
2272 { | |
2273 alSourcePlay(ALmixer_Channel_List[i].alsource); | |
2274 if((error = alGetError()) != AL_NO_ERROR) | |
2275 { | |
2276 ALmixer_SetError("%s", | |
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2277 alGetString(error) ); |
0 | 2278 retval = -1; |
2279 } | |
2280 } | |
2281 else if(AL_PAUSED == state) | |
2282 { | |
2283 /* HACK: The problem is that when paused, after | |
2284 * the Rewind, I can't get it off the INITIAL | |
2285 * state without restarting | |
2286 */ | |
2287 alSourcePlay(ALmixer_Channel_List[i].alsource); | |
2288 if((error = alGetError()) != AL_NO_ERROR) | |
2289 { | |
2290 fprintf(stderr, "27Testing error: %s\n", | |
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2291 alGetString(error)); |
0 | 2292 } |
2293 alSourcePause(ALmixer_Channel_List[i].alsource); | |
2294 if((error = alGetError()) != AL_NO_ERROR) | |
2295 { | |
2296 ALmixer_SetError("%s", | |
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2297 alGetString(error) ); |
0 | 2298 retval = -1; |
2299 } | |
2300 } | |
2301 } | |
2302 else | |
2303 { | |
2304 /* Streamed data is different. Rewinding the channel | |
2305 * does no good. Rewinding the data will have an | |
2306 * effect, but it will be lagged based on how | |
2307 * much data is queued. Recommend users call Halt | |
2308 * before rewind if they want immediate results. | |
2309 */ | |
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2310 running_count += Internal_RewindData(ALmixer_Channel_List[i].almixer_data); |
0 | 2311 } |
2312 } | |
2313 } | |
2314 } | |
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2315 if(-1 == retval) |
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2316 { |
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2317 return -1; |
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2318 } |
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2319 else |
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|
2320 { |
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2321 return running_count; |
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2322 } |
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2323 |
0 | 2324 } |
2325 | |
2326 | |
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2327 static ALint Internal_RewindSource(ALuint source) |
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2328 { |
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2329 ALint channel; |
0 | 2330 if(0 == source) |
2331 { | |
20
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|
2332 return Internal_RewindChannel(-1); |
0 | 2333 } |
2334 | |
2335 channel = Internal_GetChannel(source); | |
2336 if(-1 == channel) | |
2337 { | |
2338 ALmixer_SetError("Cannot rewind source: %s", ALmixer_GetError()); | |
2339 return 0; | |
2340 } | |
20
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2341 return Internal_RewindChannel(channel); |
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2342 } |
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|
2343 |
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2344 |
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2345 |
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2346 |
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2347 |
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2348 static ALint Internal_PlayChannelTimed(ALint channel, ALmixer_Data* data, ALint loops, ALint ticks) |
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2349 { |
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2350 ALenum error; |
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|
2351 int ret_flag = 0; |
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2352 if(NULL == data) |
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2353 { |
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2354 ALmixer_SetError("Can't play because data is NULL\n"); |
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2355 return -1; |
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2356 } |
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2357 |
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2358 /* There isn't a good way to share streamed files because |
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2359 * the decoded data doesn't stick around. |
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2360 * You must "Load" a brand new instance of |
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2361 * the data. If you try using the same data, |
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2362 * bad things may happen. This check will attempt |
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2363 * to prevent sharing |
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|
2364 */ |
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2365 if(0 == data->decoded_all) |
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2366 { |
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2367 if(data->in_use) |
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2368 { |
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2369 ALmixer_SetError("Can't play shared streamed sample because it is already in use"); |
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2370 return -1; |
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2371 } |
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2372 |
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2373 /* Make sure SDL_sound sample is not at EOF. |
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2374 * This mainly affects streamed files, |
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2375 * so the check is placed here |
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2376 */ |
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2377 if(data->eof) |
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2378 { |
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2379 if( -1 == Internal_RewindData(data) ) |
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|
2380 { |
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|
2381 ALmixer_SetError("Can't play sample because it is at EOF and cannot rewind"); |
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2382 return -1; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2383 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2384 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2385 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2386 /* We need to provide the user with the first available channel */ |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2387 if(-1 == channel) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2388 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2389 ALint i; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2390 for(i=Number_of_Reserve_Channels_global; i<Number_of_Channels_global; i++) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2391 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2392 if(0 == ALmixer_Channel_List[i].channel_in_use) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2393 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2394 channel = i; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2395 break; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2396 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2397 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2398 /* if we couldn't find a channel, return an error */ |
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2399 if(i == Number_of_Channels_global) |
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2400 { |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2401 ALmixer_SetError("No channels available for playing"); |
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Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2402 return -1; |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2403 } |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2404 } |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2405 /* If we didn't assign the channel number, make sure it's not |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2406 * out of bounds or in use */ |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2407 else |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2408 { |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2409 if(channel >= Number_of_Channels_global) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2410 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2411 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
|
2412 return -1; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2413 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2414 else if(ALmixer_Channel_List[channel].channel_in_use) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2415 { |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2416 ALmixer_SetError("Requested channel (%d) is in use", 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
|
2417 return -1; |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2418 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2419 } |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2420 /* Make sure the user doesn't enter some meaningless value */ |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2421 if(loops < -1) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2422 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2423 loops = -1; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2424 } |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2425 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2426 /* loops will probably have to change to be controlled by SDL_Sound */ |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2427 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2428 /* Set up the initial values for playing */ |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2429 ALmixer_Channel_List[channel].channel_in_use = 1; |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2430 data->in_use++; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2431 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2432 /* Shouldn't need updating until a callback is fired |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2433 * (assuming that we call Play in this function |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2434 */ |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2435 ALmixer_Channel_List[channel].needs_stream = 0; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2436 ALmixer_Channel_List[channel].almixer_data = data; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2437 ALmixer_Channel_List[channel].start_time = ALmixer_GetTicks(); |
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2438 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2439 /* If user entered -1 (or less), set to -1 */ |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2440 if(ticks < 0) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2441 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2442 ALmixer_Channel_List[channel].expire_ticks = -1; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2443 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2444 else |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2445 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2446 ALmixer_Channel_List[channel].expire_ticks = ticks; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2447 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2448 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2449 |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2450 ALmixer_Channel_List[channel].halted = 0; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2451 ALmixer_Channel_List[channel].paused = 0; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2452 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2453 /* Ran just use OpenAL to control loops if predecoded and infinite */ |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2454 ALmixer_Channel_List[channel].loops = loops; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2455 if( (-1 == loops) && (data->decoded_all) ) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2456 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2457 alSourcei(ALmixer_Channel_List[channel].alsource, AL_LOOPING, AL_TRUE); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2458 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2459 else |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2460 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2461 alSourcei(ALmixer_Channel_List[channel].alsource, AL_LOOPING, AL_FALSE); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2462 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2463 if((error = alGetError()) != AL_NO_ERROR) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2464 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2465 fprintf(stderr, "13Testing error: %s\n", |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2466 alGetString(error)); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2467 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2468 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2469 #if 0 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2470 /* Because of the corner case, predecoded |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2471 * files must add +1 to the loops. |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2472 * Streams do not have this problem |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2473 * because they can use the eof flag to |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2474 * avoid the conflict. |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2475 * Sharing data chunks prevents the use of the eof flag. |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2476 * Since streams, cannot share, only predecoded |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2477 * files are affected |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2478 */ |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2479 if(data->decoded_all) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2480 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2481 /* Corner Case: Now that play calls are pushed |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2482 * off to update(), the start call must |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2483 * also come through here. So, start loops |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2484 * must be +1 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2485 */ |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2486 if(-1 == loops) |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2487 { |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2488 /* -1 is a special case, and you don't want |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2489 * to add +1 to it */ |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2490 ALmixer_Channel_List[channel].loops = -1; |
279d0427ef26
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parents:
1
diff
changeset
|
2491 alSourcei(ALmixer_Channel_List[channel].alsource, AL_LOOPING, AL_TRUE); |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2492 } |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2493 else |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2494 { |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2495 ALmixer_Channel_List[channel].loops = loops+1; |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2496 alSourcei(ALmixer_Channel_List[channel].alsource, AL_LOOPING, AL_FALSE); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2497 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2498 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2499 else |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2500 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2501 ALmixer_Channel_List[channel].loops = loops; |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2502 /* Can we really loop on streamed data? */ |
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
2503 alSourcei(ALmixer_Channel_List[channel].alsource, AL_LOOPING, AL_TRUE); |
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2504 } |
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|
2505 #endif |
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|
2506 |
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|
2507 /* Should I start playing here or pass the buck to update? */ |
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diff
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|
2508 /* Unlike SDL_SoundMixer, I think I'll do it here because |
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1
diff
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|
2509 * this library isn't a *total* hack and OpenAL has more |
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|
2510 * built in functionality I need, so less needs to be |
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|
2511 * controlled and directed through the update function. |
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|
2512 * The downside is less functionality is centralized. |
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2513 * The upside is that the update function should be |
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|
2514 * easier to maintain. |
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|
2515 */ |
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|
2516 |
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|
2517 /* Clear the error flag */ |
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|
2518 alGetError(); |
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|
2519 if(data->decoded_all) |
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|
2520 { |
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|
2521 /* Bind the data to the source */ |
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|
2522 alSourcei( |
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|
2523 ALmixer_Channel_List[channel].alsource, |
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|
2524 AL_BUFFER, |
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|
2525 data->buffer[0]); |
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|
2526 if((error = alGetError()) != AL_NO_ERROR) |
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|
2527 { |
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|
2528 ALmixer_SetError("Could not bind data to source: %s", |
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|
2529 alGetString(error) ); |
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|
2530 Clean_Channel(channel); |
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|
2531 return -1; |
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|
2532 } |
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|
2533 |
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|
2534 /* Make data available if access_data is enabled */ |
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|
2535 Invoke_Predecoded_Channel_Data_Callback(channel, data); |
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2536 } |
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|
2537 else |
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|
2538 { |
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|
2539 /* Need to use the streaming buffer for binding */ |
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|
2540 |
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|
2541 ALuint bytes_returned; |
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|
2542 ALuint j; |
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|
2543 data->num_buffers_in_use=0; |
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diff
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|
2544 /****** MODIFICATION must go here *********/ |
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|
2545 /* Since buffer queuing is pushed off until here to |
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|
2546 * avoid buffer conflicts, we must start reading |
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|
2547 * data here. First we make sure we have at least one |
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|
2548 * packet. Then we queue up until we hit our limit. |
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|
2549 */ |
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|
2550 bytes_returned = GetMoreData( |
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|
2551 data, |
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|
2552 data->buffer[0]); |
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|
2553 if(0 == bytes_returned) |
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|
2554 { |
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|
2555 /* No data or error */ |
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|
2556 ALmixer_SetError("Could not get data for streamed PlayChannel: %s", ALmixer_GetError()); |
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|
2557 Clean_Channel(channel); |
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|
2558 return -1; |
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|
2559 } |
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|
2560 /* Increment the number of buffers in use */ |
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diff
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|
2561 data->num_buffers_in_use++; |
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|
2562 |
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|
2563 |
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|
2564 /* Now we need to fill up the rest of the buffers. |
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2565 * There is a corner case where we run out of data |
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|
2566 * before the last buffer is filled. |
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2567 * Stop conditions are we run out of |
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|
2568 * data or we max out our preload buffers. |
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|
2569 */ |
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|
2570 |
6
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|
2571 /* |
2
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|
2572 fprintf(stderr, "Filling buffer #%d (AL id is %d)\n", 0, data->buffer[0]); |
6
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|
2573 */ |
2
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|
2574 for(j=1; j<data->num_startup_buffers; j++) |
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|
2575 { |
6
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diff
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|
2576 /* |
2
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|
2577 fprintf(stderr, "Filling buffer #%d (AL id is %d)\n", j, data->buffer[j]); |
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diff
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|
2578 fprintf(stderr, ">>>>>>>>>>>>>>>>>>HACK for GetMoreData2\n"); |
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|
2579 */ |
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|
2580 bytes_returned = GetMoreData( |
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|
2581 data, |
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|
2582 data->buffer[j]); |
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|
2583 /* |
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|
2584 * This might be a problem. I made a mistake with the types. I accidentally |
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|
2585 * made the bytes returned an ALint and returned -1 on error. |
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|
2586 * Bytes returned should be a ALuint, so now I no longer have a -1 case |
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|
2587 * to check. I hope I didn't break anything here |
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|
2588 */ |
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|
2589 #if 0 |
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|
2590 if(bytes_returned < 0) |
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|
2591 { |
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|
2592 /* Error found */ |
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|
2593 ALmixer_SetError("Could not get data for additional startup buffers for PlayChannel: %s", ALmixer_GetError()); |
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|
2594 /* We'll continue on because we do have some valid data */ |
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2595 ret_flag = -1; |
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2596 break; |
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|
2597 } |
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2598 else if(0 == bytes_returned) |
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|
2599 #endif |
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2600 if(0 == bytes_returned) |
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|
2601 { |
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2602 /* No more data to buffer */ |
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|
2603 /* Check for loops */ |
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|
2604 if( ALmixer_Channel_List[channel].loops != 0 ) |
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|
2605 { |
6
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|
2606 /* |
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2607 fprintf(stderr, "Need to rewind. In RAMPUP, handling loop\n"); |
6
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2608 */ |
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|
2609 if(0 == Sound_Rewind(data->sample)) |
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|
2610 { |
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|
2611 fprintf(stderr, "error in rewind\n"); |
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|
2612 ALmixer_SetError( Sound_GetError() ); |
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|
2613 ALmixer_Channel_List[channel].loops = 0; |
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2614 ret_flag = -1; |
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|
2615 /* We'll continue on because we do have some valid data */ |
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|
2616 break; |
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|
2617 } |
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|
2618 /* Remember to reset the data->eof flag */ |
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|
2619 data->eof = 0; |
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|
2620 if(ALmixer_Channel_List[channel].loops > 0) |
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|
2621 { |
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|
2622 ALmixer_Channel_List[channel].loops--; |
6
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|
2623 /* |
2
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|
2624 fprintf(stderr, "Inside 000 >>>>>>>>>>Loops=%d\n", ALmixer_Channel_List[channel].loops); |
6
4b1048af7e55
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2625 */ |
2
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|
2626 } |
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2627 /* Would like to redo the loop, but due to |
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diff
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|
2628 * Sound_Rewind() bugs, we would risk falling |
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diff
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|
2629 * into an infinite loop |
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diff
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|
2630 */ |
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diff
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|
2631 bytes_returned = GetMoreData( |
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diff
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|
2632 data, |
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diff
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|
2633 data->buffer[j]); |
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diff
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|
2634 if(bytes_returned <= 0) |
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diff
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|
2635 { |
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diff
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|
2636 ALmixer_SetError("Could not get data: %s", ALmixer_GetError()); |
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1
diff
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|
2637 /* We'll continue on because we do have some valid data */ |
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diff
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|
2638 ret_flag = -1; |
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diff
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|
2639 break; |
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|
2640 } |
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|
2641 } |
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2642 else |
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|
2643 { |
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diff
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|
2644 /* No loops to do so quit here */ |
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diff
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2645 break; |
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|
2646 } |
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|
2647 } |
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diff
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|
2648 /* Increment the number of buffers in use */ |
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diff
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|
2649 data->num_buffers_in_use++; |
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diff
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|
2650 } |
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diff
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|
2651 /* |
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diff
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|
2652 fprintf(stderr, "In PlayChannel, about to queue: source=%d, num_buffers_in_use=%d\n", |
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diff
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|
2653 ALmixer_Channel_List[channel].alsource, |
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diff
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|
2654 data->num_buffers_in_use); |
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diff
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|
2655 */ |
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diff
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|
2656 |
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diff
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|
2657 alSourceQueueBuffers( |
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diff
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|
2658 ALmixer_Channel_List[channel].alsource, |
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diff
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|
2659 data->num_buffers_in_use, |
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diff
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|
2660 data->buffer); |
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1
diff
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|
2661 if((error = alGetError()) != AL_NO_ERROR) |
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diff
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|
2662 { |
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1
diff
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|
2663 ALmixer_SetError("Could not bind data to source: %s", |
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diff
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|
2664 alGetString(error) ); |
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diff
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|
2665 Clean_Channel(channel); |
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diff
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|
2666 return -1; |
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diff
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|
2667 } |
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1
diff
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|
2668 /* This is part of the hideous Nvidia workaround. In order to figure out |
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1
diff
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|
2669 * which buffer to show during callbacks (for things like |
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diff
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|
2670 * o-scopes), I must keep a copy of the buffers that are queued in my own |
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diff
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|
2671 * data structure. This code will be called only if |
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1
diff
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|
2672 * "access_data" was set, indicated by whether the queue is NULL. |
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diff
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|
2673 */ |
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diff
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|
2674 if(data->circular_buffer_queue != NULL) |
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1
diff
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|
2675 { |
279d0427ef26
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diff
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|
2676 ALuint k; |
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1
diff
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|
2677 ALuint queue_ret_flag; |
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diff
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|
2678 for(k=0; k<data->num_buffers_in_use; k++) |
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diff
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|
2679 { |
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1
diff
changeset
|
2680 // fprintf(stderr, "56c: CircularQueue_PushBack.\n"); |
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1
diff
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|
2681 queue_ret_flag = CircularQueueUnsignedInt_PushBack(data->circular_buffer_queue, data->buffer[k]); |
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diff
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|
2682 if(0 == queue_ret_flag) |
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diff
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|
2683 { |
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1
diff
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|
2684 fprintf(stderr, "Serious internal error: CircularQueue could not push into queue.\n"); |
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1
diff
changeset
|
2685 ALmixer_SetError("Serious internal error: CircularQueue failed to push into queue"); |
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diff
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|
2686 } |
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1
diff
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|
2687 /* |
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1
diff
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|
2688 else |
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1
diff
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|
2689 { |
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1
diff
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|
2690 fprintf(stderr, "Queue in PlayTimed\n"); |
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1
diff
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|
2691 CircularQueueUnsignedInt_Print(data->circular_buffer_queue); |
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1
diff
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|
2692 } |
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1
diff
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|
2693 */ |
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1
diff
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|
2694 } |
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1
diff
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|
2695 } |
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diff
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|
2696 |
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diff
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|
2697 |
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diff
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|
2698 /****** END **********/ |
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diff
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|
2699 } |
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1
diff
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|
2700 /* We have finished loading the data (predecoded or queued) |
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diff
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|
2701 * so now we can play |
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diff
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|
2702 */ |
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1
diff
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|
2703 alSourcePlay(ALmixer_Channel_List[channel].alsource); |
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diff
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|
2704 if((error = alGetError()) != AL_NO_ERROR) |
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diff
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|
2705 { |
279d0427ef26
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diff
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|
2706 ALmixer_SetError("Play failed: %s", |
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1
diff
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|
2707 alGetString(error) ); |
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diff
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|
2708 Clean_Channel(channel); |
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diff
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|
2709 return -1; |
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1
diff
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|
2710 } |
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diff
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|
2711 |
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diff
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|
2712 /* Add to the counter that something is playing */ |
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diff
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|
2713 Is_Playing_global++; |
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diff
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|
2714 if(-1 == ret_flag) |
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diff
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|
2715 { |
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diff
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|
2716 fprintf(stderr, "BACKDOOR ERROR >>>>>>>>>>>>>>>>>>\n"); |
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diff
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|
2717 return -1; |
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diff
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|
2718 } |
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diff
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|
2719 return channel; |
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diff
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|
2720 } |
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diff
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|
2721 |
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|
2722 |
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2723 /* In case the user wants to specify a source instead of a channel, |
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2724 * they may use this function. This function will look up the |
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2725 * source-to-channel map, and convert the call into a |
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diff
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|
2726 * PlayChannelTimed() function call. |
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|
2727 * Returns the channel it's being played on. |
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|
2728 * Note: If you are prefer this method, then you need to be careful |
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diff
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|
2729 * about using PlayChannel, particularly if you request the |
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diff
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|
2730 * first available channels because source and channels have |
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diff
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|
2731 * a one-to-one mapping in this API. It is quite easy for |
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|
2732 * a channel/source to already be in use because of this. |
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|
2733 * In this event, an error message will be returned to you. |
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diff
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|
2734 */ |
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diff
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|
2735 static ALuint Internal_PlaySourceTimed(ALuint source, ALmixer_Data* data, ALint loops, ALint ticks) |
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|
2736 { |
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diff
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|
2737 ALint channel; |
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diff
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|
2738 ALint retval; |
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diff
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|
2739 if(0 == source) |
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|
2740 { |
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diff
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|
2741 retval = Internal_PlayChannelTimed(-1, data, loops, ticks); |
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diff
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|
2742 if(-1 == retval) |
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diff
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|
2743 { |
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|
2744 return 0; |
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1
diff
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|
2745 } |
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diff
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|
2746 else |
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1
diff
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|
2747 { |
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2748 return Internal_GetSource(retval); |
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2749 } |
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2750 } |
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2751 |
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2752 channel = Internal_GetChannel(source); |
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2753 if(-1 == channel) |
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2754 { |
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2755 ALmixer_SetError("Cannot Play source: %s", ALmixer_GetError()); |
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2756 return 0; |
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2757 } |
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2758 retval = Internal_PlayChannelTimed(channel, data, loops, ticks); |
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2759 if(-1 == retval) |
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2760 { |
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2761 return 0; |
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2762 } |
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2763 else |
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2764 { |
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2765 return source; |
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2766 } |
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2767 /* make compiler happy */ |
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2768 return 0; |
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2769 } |
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2770 |
0 | 2771 |
2772 | |
2773 | |
2774 /* Returns the channel or number of channels actually paused */ | |
2775 | |
2
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2776 static ALint Internal_PauseChannel(ALint channel) |
0 | 2777 { |
2778 ALenum error; | |
2779 ALint state; | |
2
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2780 ALint retval = 0; |
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2781 ALint counter = 0; |
0 | 2782 |
2783 if(channel >= Number_of_Channels_global) | |
2784 { | |
2785 ALmixer_SetError("Cannot pause channel %d because it exceeds maximum number of channels (%d)\n", channel, Number_of_Channels_global); | |
2786 return -1; | |
2787 } | |
2788 | |
2789 if((error = alGetError()) != AL_NO_ERROR) | |
2790 { | |
2791 fprintf(stderr, "28Testing error: %s\n", | |
2
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2792 alGetString(error)); |
0 | 2793 } |
2794 /* Clear error */ | |
2795 alGetError(); | |
2796 | |
2797 /* If the user specified a specific channel */ | |
2798 if(channel >= 0) | |
2799 { | |
2800 /* only need to process channel if in use */ | |
2801 if(ALmixer_Channel_List[channel].channel_in_use) | |
2802 { | |
2803 /* We don't want to repause if already | |
2804 * paused because the fadeout/expire | |
2805 * timing will get messed up | |
2806 */ | |
2807 alGetSourcei( | |
2808 ALmixer_Channel_List[channel].alsource, | |
2809 AL_SOURCE_STATE, &state | |
2810 ); | |
2811 if((error = alGetError()) != AL_NO_ERROR) | |
2812 { | |
2813 fprintf(stderr, "29Testing error: %s\n", | |
2
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2814 alGetString(error)); |
0 | 2815 } |
2816 if(AL_PLAYING == state) | |
2817 { | |
2818 /* Count the actual number of channels being paused */ | |
2819 counter++; | |
2820 | |
2821 alSourcePause(ALmixer_Channel_List[channel].alsource); | |
2822 if((error = alGetError()) != AL_NO_ERROR) | |
2823 { | |
2824 ALmixer_SetError("%s", | |
2
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2825 alGetString(error) ); |
0 | 2826 retval = -1; |
2827 } | |
2828 /* We need to pause the expire time count down */ | |
2829 if(ALmixer_Channel_List[channel].expire_ticks != -1) | |
2830 { | |
2
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2831 ALuint current_time = ALmixer_GetTicks(); |
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2832 ALuint diff_time; |
0 | 2833 diff_time = current_time - |
2834 ALmixer_Channel_List[channel].start_time; | |
2835 /* When we unpause, we will want to reset | |
2836 * the start time so we can continue | |
2837 * to base calculations off GetTicks(). | |
2838 * This means we need to subtract the amount | |
2839 * of time already used up from expire_ticks. | |
2840 */ | |
2841 ALmixer_Channel_List[channel].expire_ticks = | |
2842 ALmixer_Channel_List[channel].expire_ticks - | |
2843 diff_time; | |
2844 /* Because -1 is a special value, we can't | |
2845 * allow the time to go negative | |
2846 */ | |
2847 if(ALmixer_Channel_List[channel].expire_ticks < 0) | |
2848 { | |
2849 ALmixer_Channel_List[channel].expire_ticks = 0; | |
2850 } | |
2851 } | |
2852 /* Do the same as expire time for fading */ | |
2853 if(ALmixer_Channel_List[channel].fade_enabled) | |
2854 { | |
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2855 ALuint current_time = ALmixer_GetTicks(); |
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2856 ALuint diff_time; |
0 | 2857 diff_time = current_time - |
2858 ALmixer_Channel_List[channel].fade_start_time; | |
2859 /* When we unpause, we will want to reset | |
2860 * the start time so we can continue | |
2861 * to base calculations off GetTicks(). | |
2862 * This means we need to subtract the amount | |
2863 * of time already used up from expire_ticks. | |
2864 */ | |
2865 ALmixer_Channel_List[channel].fade_expire_ticks = | |
2866 ALmixer_Channel_List[channel].fade_expire_ticks - | |
2867 diff_time; | |
2868 /* Don't allow the time to go negative */ | |
2869 if(ALmixer_Channel_List[channel].expire_ticks < 0) | |
2870 { | |
2871 ALmixer_Channel_List[channel].expire_ticks = 0; | |
2872 } | |
2873 } /* End fade check */ | |
2874 } /* End if PLAYING */ | |
2875 } /* End If in use */ | |
2876 } /* End specific channel */ | |
2877 /* The user wants to halt all channels */ | |
2878 else | |
2879 { | |
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2880 ALint i; |
0 | 2881 for(i=0; i<Number_of_Channels_global; i++) |
2882 { | |
2883 /* only need to process channel if in use */ | |
2884 if(ALmixer_Channel_List[i].channel_in_use) | |
2885 { | |
2886 /* We don't want to repause if already | |
2887 * paused because the fadeout/expire | |
2888 * timing will get messed up | |
2889 */ | |
2890 alGetSourcei( | |
2891 ALmixer_Channel_List[i].alsource, | |
2892 AL_SOURCE_STATE, &state | |
2893 ); | |
2894 if((error = alGetError()) != AL_NO_ERROR) | |
2895 { | |
2896 fprintf(stderr, "30Testing error: %s\n", | |
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2897 alGetString(error)); |
0 | 2898 } |
2899 if(AL_PLAYING == state) | |
2900 { | |
2901 /* Count the actual number of channels being paused */ | |
2902 counter++; | |
2903 | |
2904 alSourcePause(ALmixer_Channel_List[i].alsource); | |
2905 if((error = alGetError()) != AL_NO_ERROR) | |
2906 { | |
2907 ALmixer_SetError("%s", | |
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2908 alGetString(error) ); |
0 | 2909 retval = -1; |
2910 } | |
2911 /* We need to pause the expire time count down */ | |
2912 if(ALmixer_Channel_List[i].expire_ticks != -1) | |
2913 { | |
2
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2914 ALuint current_time = ALmixer_GetTicks(); |
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2915 ALuint diff_time; |
0 | 2916 diff_time = current_time - |
2917 ALmixer_Channel_List[i].start_time; | |
2918 /* When we unpause, we will want to reset | |
2919 * the start time so we can continue | |
2920 * to base calculations off GetTicks(). | |
2921 * This means we need to subtract the amount | |
2922 * of time already used up from expire_ticks. | |
2923 */ | |
2924 ALmixer_Channel_List[i].expire_ticks = | |
2925 ALmixer_Channel_List[i].expire_ticks - | |
2926 diff_time; | |
2927 /* Because -1 is a special value, we can't | |
2928 * allow the time to go negative | |
2929 */ | |
2930 if(ALmixer_Channel_List[i].expire_ticks < 0) | |
2931 { | |
2932 ALmixer_Channel_List[i].expire_ticks = 0; | |
2933 } | |
2934 } | |
2935 /* Do the same as expire time for fading */ | |
2936 if(ALmixer_Channel_List[i].fade_enabled) | |
2937 { | |
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2938 ALuint current_time = ALmixer_GetTicks(); |
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2939 ALuint diff_time; |
0 | 2940 diff_time = current_time - |
2941 ALmixer_Channel_List[i].fade_start_time; | |
2942 /* When we unpause, we will want to reset | |
2943 * the start time so we can continue | |
2944 * to base calculations off GetTicks(). | |
2945 * This means we need to subtract the amount | |
2946 * of time already used up from expire_ticks. | |
2947 */ | |
2948 ALmixer_Channel_List[i].fade_expire_ticks = | |
2949 ALmixer_Channel_List[i].fade_expire_ticks - | |
2950 diff_time; | |
2951 /* Don't allow the time to go negative */ | |
2952 if(ALmixer_Channel_List[i].expire_ticks < 0) | |
2953 { | |
2954 ALmixer_Channel_List[i].expire_ticks = 0; | |
2955 } | |
2956 } /* End fade check */ | |
2957 } /* End if PLAYING */ | |
2958 } /* End channel in use */ | |
2959 } /* End for-loop */ | |
2960 } | |
2961 if(-1 == retval) | |
2962 { | |
2963 return -1; | |
2964 } | |
2965 return counter; | |
2966 } | |
2967 | |
2968 /* Returns the channel or number of channels actually paused */ | |
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2969 static ALint Internal_PauseSource(ALuint source) |
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2970 { |
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|
2971 ALint channel; |
0 | 2972 if(0 == source) |
2973 { | |
2974 return Internal_PauseChannel(-1); | |
2975 } | |
2976 | |
2977 channel = Internal_GetChannel(source); | |
2978 if(-1 == channel) | |
2979 { | |
2980 ALmixer_SetError("Cannot pause source: %s", ALmixer_GetError()); | |
2981 return -1; | |
2982 } | |
2983 return Internal_PauseChannel(channel); | |
2984 } | |
2985 | |
2986 | |
2987 | |
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2988 static ALint Internal_ResumeChannel(ALint channel) |
0 | 2989 { |
2990 ALint state; | |
2991 ALenum error; | |
2
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2992 ALint retval = 0; |
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2993 ALint counter = 0; |
0 | 2994 |
2995 if(channel >= Number_of_Channels_global) | |
2996 { | |
2997 ALmixer_SetError("Cannot pause channel %d because it exceeds maximum number of channels (%d)\n", channel, Number_of_Channels_global); | |
2998 return -1; | |
2999 } | |
3000 | |
3001 if((error = alGetError()) != AL_NO_ERROR) | |
3002 { | |
3003 fprintf(stderr, "31Testing error: %s\n", | |
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3004 alGetString(error)); |
0 | 3005 } |
3006 /* Clear error */ | |
3007 alGetError(); | |
3008 | |
3009 /* If the user specified a specific channel */ | |
3010 if(channel >= 0) | |
3011 { | |
3012 /* only need to process channel if in use */ | |
3013 if(ALmixer_Channel_List[channel].channel_in_use) | |
3014 { | |
3015 alGetSourcei( | |
3016 ALmixer_Channel_List[channel].alsource, | |
3017 AL_SOURCE_STATE, &state | |
3018 ); | |
3019 if((error = alGetError()) != AL_NO_ERROR) | |
3020 { | |
3021 fprintf(stderr, "32Testing error: %s\n", | |
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3022 alGetString(error)); |
0 | 3023 } |
3024 if(AL_PAUSED == state) | |
3025 { | |
3026 /* Count the actual number of channels resumed */ | |
3027 counter++; | |
3028 | |
3029 /* We need to resume the expire time count down */ | |
3030 if(ALmixer_Channel_List[channel].expire_ticks != -1) | |
3031 { | |
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3032 ALmixer_Channel_List[channel].start_time = ALmixer_GetTicks(); |
0 | 3033 } |
3034 /* Do the same as expire time for fading */ | |
3035 if(ALmixer_Channel_List[channel].fade_enabled) | |
3036 { | |
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3037 ALmixer_Channel_List[channel].fade_start_time = ALmixer_GetTicks(); |
0 | 3038 } |
3039 | |
3040 alSourcePlay(ALmixer_Channel_List[channel].alsource); | |
3041 if((error = alGetError()) != AL_NO_ERROR) | |
3042 { | |
3043 ALmixer_SetError("%s", | |
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3044 alGetString(error) ); |
0 | 3045 retval = -1; |
3046 } | |
3047 } | |
3048 } | |
3049 } | |
3050 /* The user wants to halt all channels */ | |
3051 else | |
3052 { | |
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3053 ALint i; |
0 | 3054 for(i=0; i<Number_of_Channels_global; i++) |
3055 { | |
3056 /* only need to process channel if in use */ | |
3057 if(ALmixer_Channel_List[i].channel_in_use) | |
3058 { | |
3059 alGetSourcei( | |
3060 ALmixer_Channel_List[i].alsource, | |
3061 AL_SOURCE_STATE, &state | |
3062 ); | |
3063 if((error = alGetError()) != AL_NO_ERROR) | |
3064 { | |
3065 fprintf(stderr, "33Testing error: %s\n", | |
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3066 alGetString(error)); |
0 | 3067 } |
3068 if(AL_PAUSED == state) | |
3069 { | |
3070 /* Count the actual number of channels resumed */ | |
3071 counter++; | |
3072 | |
3073 /* We need to resume the expire time count down */ | |
3074 if(ALmixer_Channel_List[i].expire_ticks != -1) | |
3075 { | |
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3076 ALmixer_Channel_List[i].start_time = ALmixer_GetTicks(); |
0 | 3077 } |
3078 /* Do the same as expire time for fading */ | |
3079 if(ALmixer_Channel_List[i].fade_enabled) | |
3080 { | |
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3081 ALmixer_Channel_List[i].fade_start_time = ALmixer_GetTicks(); |
0 | 3082 } |
3083 | |
3084 alSourcePlay(ALmixer_Channel_List[i].alsource); | |
3085 if((error = alGetError()) != AL_NO_ERROR) | |
3086 { | |
3087 ALmixer_SetError("%s", | |
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3088 alGetString(error) ); |
0 | 3089 retval = -1; |
3090 } | |
3091 } | |
3092 } | |
3093 } | |
3094 } | |
3095 if(-1 == retval) | |
3096 { | |
3097 return -1; | |
3098 } | |
3099 return counter; | |
3100 } | |
3101 | |
3102 | |
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3103 static ALint Internal_ResumeSource(ALuint source) |
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3104 { |
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3105 ALint channel; |
0 | 3106 if(0 == source) |
3107 { | |
3108 return Internal_ResumeChannel(-1); | |
3109 } | |
3110 | |
3111 channel = Internal_GetChannel(source); | |
3112 if(-1 == channel) | |
3113 { | |
3114 ALmixer_SetError("Cannot resume source: %s", ALmixer_GetError()); | |
3115 return -1; | |
3116 } | |
3117 return Internal_ResumeChannel(channel); | |
3118 } | |
3119 | |
3120 | |
3121 /* Might consider setting eof to 0 as a "feature" | |
3122 * This will allow seek to end to stay there because | |
3123 * Play automatically rewinds if at the end */ | |
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|
3124 static ALboolean Internal_SeekData(ALmixer_Data* data, ALuint msec) |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3125 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3126 ALint retval; |
0 | 3127 |
3128 if(NULL == data) | |
3129 { | |
3130 ALmixer_SetError("Cannot Seek because data is NULL"); | |
12
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3131 return AL_FALSE; |
0 | 3132 } |
3133 | |
3134 /* Seek for predecoded files involves moving the chunk pointer around */ | |
3135 if(data->decoded_all) | |
3136 { | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3137 ALuint byte_position; |
0 | 3138 |
3139 /* OpenAL doesn't seem to like it if I change the buffer | |
3140 * while playing (crashes), so I must require that Seek only | |
3141 * be done when the data is not in use. | |
3142 * Since data may be shared among multiple sources, | |
3143 * I can't shut them down myself, so I have to return an error. | |
3144 */ | |
3145 if(data->in_use) | |
3146 { | |
3147 ALmixer_SetError("Cannot seek on predecoded data while instances are playing"); | |
12
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3148 return AL_FALSE; |
0 | 3149 } |
3150 #if 0 | |
3151 #if defined(DISABLE_PREDECODED_SEEK) | |
3152 ALmixer_SetError("Seek support for predecoded samples was not compiled in"); | |
12
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3153 return AL_FALSE; |
0 | 3154 |
3155 #elif !defined(DISABLE_SEEK_MEMORY_OPTIMIZATION) | |
3156 /* By default, ALmixer frees the Sound_Sample for predecoded | |
3157 * samples because of the potential memory waste. | |
3158 * However, to seek a sample, we need to have a full | |
3159 * copy of the data around. So the strategy is to | |
3160 * recreate a hackish Sound_Sample to be used for seeking | |
3161 * purposes. If Sound_Sample is NULL, we will reallocate | |
3162 * memory for it and then procede as if everything | |
3163 * was normal. | |
3164 */ | |
3165 if(NULL == data->sample) | |
3166 { | |
3167 if( -1 == Reconstruct_Sound_Sample(data) ) | |
3168 { | |
12
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3169 return AL_FALSE; |
0 | 3170 } |
3171 } | |
3172 #endif | |
3173 #endif | |
3174 /* If access_data was set, then we still have the | |
3175 * Sound_Sample and we can move around in the data. | |
3176 * If it was not set, the data has been freed and we | |
3177 * cannot do anything because there is no way to | |
3178 * recover the data because OpenAL won't let us | |
3179 * get access to the buffers | |
3180 */ | |
3181 if(NULL == data->sample) | |
3182 { | |
3183 ALmixer_SetError("Cannot seek because access_data flag was set false when data was initialized"); | |
12
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3184 return AL_FALSE; |
0 | 3185 } |
3186 | |
3187 byte_position = Convert_Msec_To_Byte_Pos(&data->sample->desired, msec); | |
12
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3188 retval = Set_Predecoded_Seek_Position(data, byte_position); |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3189 if(-1 == retval) |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3190 { |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3191 return AL_FALSE; |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3192 } |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3193 else |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3194 { |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3195 return AL_TRUE; |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3196 } |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3197 |
0 | 3198 } |
3199 else | |
3200 { | |
3201 /* Reset eof flag?? */ | |
3202 data->eof = 0; | |
3203 retval = Sound_Seek(data->sample, msec); | |
3204 if(0 == retval) | |
3205 { | |
3206 ALmixer_SetError(Sound_GetError()); | |
3207 | |
3208 fprintf(stderr, "Sound seek error: %s\n", ALmixer_GetError()); | |
3209 /* Try rewinding to clean up? */ | |
3210 /* | |
3211 Internal_RewindData(data); | |
3212 */ | |
12
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3213 return AL_FALSE; |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3214 } |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3215 return AL_TRUE; |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
3216 } |
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; |
0 | 3219 } |
3220 | |
3221 | |
20
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3222 static ALint Internal_SeekChannel(ALint channel, ALuint msec) |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3223 { |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3224 ALint retval = 0; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3225 ALenum error; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3226 ALint state; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3227 ALint running_count = 0; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3228 |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3229 if(0 == msec) |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3230 { |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3231 return Internal_RewindChannel(channel); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3232 } |
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 if(channel >= Number_of_Channels_global) |
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 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
|
3237 return -1; |
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 |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3240 if((error = alGetError()) != AL_NO_ERROR) |
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 fprintf(stderr, "24Testing error: %s\n", |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3243 alGetString(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 /* Clear error */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3246 alGetError(); |
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 /* If the user specified a specific channel */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3249 if(channel >= 0) |
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 /* only need to process channel if in use */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3252 if(ALmixer_Channel_List[channel].channel_in_use) |
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 |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3255 /* What should I do? Do I just rewind the channel |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3256 * or also rewind the data? Since the data is |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3257 * shared, let's make it the user's responsibility |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3258 * to rewind the data. |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3259 */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3260 if(ALmixer_Channel_List[channel].almixer_data->decoded_all) |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3261 { |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3262 /* convert milliseconds to seconds */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3263 ALfloat sec_offset = msec / 1000.0f; |
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 alGetSourcei( |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3266 ALmixer_Channel_List[channel].alsource, |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3267 AL_SOURCE_STATE, &state |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3268 ); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3269 if((error = alGetError()) != AL_NO_ERROR) |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3270 { |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3271 fprintf(stderr, "25Testing error: %s\n", |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3272 alGetString(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 /* OpenAL seek */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3275 alSourcef(ALmixer_Channel_List[channel].alsource, AL_SEC_OFFSET, sec_offset); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3276 if((error = alGetError()) != AL_NO_ERROR) |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3277 { |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3278 ALmixer_SetError("%s", |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3279 alGetString(error) ); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3280 retval = -1; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3281 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3282 /* Need to resume playback if it was originally playing */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3283 if(AL_PLAYING == state) |
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 alSourcePlay(ALmixer_Channel_List[channel].alsource); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3286 if((error = alGetError()) != AL_NO_ERROR) |
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 ALmixer_SetError("%s", |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3289 alGetString(error) ); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3290 retval = -1; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3291 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3292 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3293 else if(AL_PAUSED == state) |
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 /* HACK: The problem is that when paused, after |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3296 * the Rewind, I can't get it off the INITIAL |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3297 * state without restarting |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3298 */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3299 alSourcePlay(ALmixer_Channel_List[channel].alsource); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3300 if((error = alGetError()) != AL_NO_ERROR) |
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 fprintf(stderr, "25Testing error: %s\n", |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3303 alGetString(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 alSourcePause(ALmixer_Channel_List[channel].alsource); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3306 if((error = alGetError()) != AL_NO_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 ALmixer_SetError("%s", |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3309 alGetString(error) ); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3310 retval = -1; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3311 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3312 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3313 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3314 else |
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 /* Streamed data is different. Rewinding the channel |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3317 * does no good. Rewinding the data will have an |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3318 * effect, but it will be lagged based on how |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3319 * much data is queued. Recommend users call Halt |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3320 * before rewind if they want immediate results. |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3321 */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3322 retval = Internal_SeekData(ALmixer_Channel_List[channel].almixer_data, msec); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3323 } |
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 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3326 /* The user wants to rewind all channels */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3327 else |
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 ALint i; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3330 ALfloat sec_offset = msec / 1000.0f; |
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 for(i=0; i<Number_of_Channels_global; i++) |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3333 { |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3334 /* only need to process channel if in use */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3335 if(ALmixer_Channel_List[i].channel_in_use) |
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 /* What should I do? Do I just rewind the channel |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3338 * or also rewind the data? Since the data is |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3339 * shared, let's make it the user's responsibility |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3340 * to rewind the data. |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3341 */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3342 if(ALmixer_Channel_List[i].almixer_data->decoded_all) |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3343 { |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3344 alGetSourcei( |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3345 ALmixer_Channel_List[i].alsource, |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3346 AL_SOURCE_STATE, &state |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3347 ); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3348 if((error = alGetError()) != AL_NO_ERROR) |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3349 { |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3350 fprintf(stderr, "26Testing error: %s\n", |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3351 alGetString(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 |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3354 alSourcef(ALmixer_Channel_List[channel].alsource, AL_SEC_OFFSET, sec_offset); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3355 if((error = alGetError()) != AL_NO_ERROR) |
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 ALmixer_SetError("%s", |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3358 alGetString(error) ); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3359 retval = -1; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3360 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3361 /* Need to resume playback if it was originally playing */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3362 if(AL_PLAYING == state) |
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 alSourcePlay(ALmixer_Channel_List[i].alsource); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3365 if((error = alGetError()) != AL_NO_ERROR) |
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 ALmixer_SetError("%s", |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3368 alGetString(error) ); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3369 retval = -1; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3370 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3371 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3372 else if(AL_PAUSED == state) |
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 /* HACK: The problem is that when paused, after |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3375 * the Rewind, I can't get it off the INITIAL |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3376 * state without restarting |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3377 */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3378 alSourcePlay(ALmixer_Channel_List[i].alsource); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3379 if((error = alGetError()) != AL_NO_ERROR) |
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 fprintf(stderr, "27Testing error: %s\n", |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3382 alGetString(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 alSourcePause(ALmixer_Channel_List[i].alsource); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3385 if((error = alGetError()) != AL_NO_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 ALmixer_SetError("%s", |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3388 alGetString(error) ); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3389 retval = -1; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3390 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3391 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3392 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3393 else |
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 /* Streamed data is different. Rewinding the channel |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3396 * does no good. Rewinding the data will have an |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3397 * effect, but it will be lagged based on how |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3398 * much data is queued. Recommend users call Halt |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3399 * before rewind if they want immediate results. |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3400 */ |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3401 running_count += Internal_SeekData(ALmixer_Channel_List[i].almixer_data, msec); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3402 } |
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 } |
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 if(-1 == retval) |
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 return -1; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3409 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3410 else |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3411 { |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3412 return running_count; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3413 } |
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 } |
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 static ALint Internal_SeekSource(ALuint source, ALuint msec) |
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 ALint channel; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3420 if(0 == source) |
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 return Internal_SeekChannel(-1, msec); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3423 } |
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 channel = Internal_GetChannel(source); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3426 if(-1 == channel) |
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 ALmixer_SetError("Cannot seek source: %s", ALmixer_GetError()); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3429 return 0; |
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 return Internal_SeekChannel(channel, msec); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
3432 } |
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 |
0 | 3435 |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3436 static ALint Internal_FadeInChannelTimed(ALint channel, ALmixer_Data* data, ALint loops, ALuint fade_ticks, ALint expire_ticks) |
0 | 3437 { |
3438 ALfloat value; | |
3439 ALenum error; | |
3440 ALfloat original_value; | |
24
e085cbc573cf
iOS optimization/bug/workaround.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
22
diff
changeset
|
3441 /* ALuint current_time = ALmixer_GetTicks(); */ |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3442 ALint retval; |
0 | 3443 |
3444 | |
3445 | |
3446 if(channel >= Number_of_Channels_global) | |
3447 { | |
3448 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); | |
3449 return -1; | |
3450 } | |
3451 /* Let's call PlayChannelTimed to do the job. | |
3452 * There are two catches: | |
3453 * First is that we must set the volumes before the play call(s). | |
3454 * Second is that we must initialize the channel values | |
3455 */ | |
3456 | |
3457 if(channel < 0) | |
3458 { | |
3459 /* This might cause a problem for threads/race conditions. | |
3460 * We need to set the volume on an unknown channel, | |
3461 * so we need to request a channel first. Remember | |
3462 * that requesting a channel doesn't lock and it | |
3463 * could be surrendered to somebody else before we claim it. | |
3464 */ | |
3465 channel = Internal_GetChannel(0); | |
3466 if(-1 == channel) | |
3467 { | |
3468 return -1; | |
3469 } | |
3470 } | |
3471 else if(ALmixer_Channel_List[channel].channel_in_use) | |
3472 { | |
3473 ALmixer_SetError("Channel %d is already in use", channel); | |
3474 return -1; | |
3475 } | |
3476 | |
3477 | |
3478 /* Get the original volume in case of a problem */ | |
3479 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
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3480 AL_GAIN, &original_value); |
0 | 3481 |
3482 if((error = alGetError()) != AL_NO_ERROR) | |
3483 { | |
3484 fprintf(stderr, "35Testing error: %s\n", | |
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3485 alGetString(error)); |
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3486 } |
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3487 ALmixer_Channel_List[channel].fade_end_volume = original_value; |
0 | 3488 |
3489 /* Get the Min volume */ | |
3490 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
3491 AL_MIN_GAIN, &value); | |
3492 if((error = alGetError()) != AL_NO_ERROR) | |
3493 { | |
3494 fprintf(stderr, "36Testing error: %s\n", | |
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3495 alGetString(error)); |
0 | 3496 } |
3497 ALmixer_Channel_List[channel].fade_start_volume = value; | |
3498 | |
3499 /* Set the actual volume */ | |
3500 alSourcef(ALmixer_Channel_List[channel].alsource, | |
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3501 AL_GAIN, value); |
0 | 3502 if((error = alGetError()) != AL_NO_ERROR) |
3503 { | |
3504 fprintf(stderr, "37Testing error: %s\n", | |
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3505 alGetString(error)); |
0 | 3506 } |
3507 | |
3508 | |
3509 /* Now call PlayChannelTimed */ | |
3510 retval = Internal_PlayChannelTimed(channel, data, loops, expire_ticks); | |
3511 if(-1 == retval) | |
3512 { | |
3513 /* Chance of failure is actually pretty high since | |
3514 * a channel might already be in use or streamed | |
3515 * data can be shared | |
3516 */ | |
3517 /* Restore the original value to avoid accidental | |
3518 * distruption of playback | |
3519 */ | |
3520 alSourcef(ALmixer_Channel_List[channel].alsource, | |
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3521 AL_GAIN, original_value); |
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3522 if((error = alGetError()) != AL_NO_ERROR) |
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3523 { |
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3524 fprintf(stderr, "38Testing error: %s\n", |
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3525 alGetString(error)); |
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3526 } |
0 | 3527 return retval; |
3528 } | |
3529 | |
3530 /* We can't accept 0 as a value because of div-by-zero. | |
3531 * If zero, just call PlayChannelTimed at normal | |
3532 * volume | |
3533 */ | |
3534 if(0 == fade_ticks) | |
3535 { | |
3536 alSourcef(ALmixer_Channel_List[channel].alsource, | |
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3537 AL_GAIN, |
0 | 3538 ALmixer_Channel_List[channel].fade_end_volume |
3539 ); | |
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3540 if((error = alGetError()) != AL_NO_ERROR) |
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3541 { |
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3542 fprintf(stderr, "39Testing error: %s\n", |
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3543 alGetString(error)); |
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3544 } |
0 | 3545 |
3546 return retval; | |
3547 } | |
3548 | |
3549 /* Enable fading effects via the flag */ | |
3550 ALmixer_Channel_List[channel].fade_enabled = 1; | |
3551 /* Set fade start time */ | |
3552 ALmixer_Channel_List[channel].fade_start_time | |
3553 = ALmixer_Channel_List[channel].start_time; | |
3554 /* Set the fade expire ticks */ | |
3555 ALmixer_Channel_List[channel].fade_expire_ticks = fade_ticks; | |
3556 | |
3557 /* Set 1/(endtime-starttime) or 1/deltaT */ | |
3558 ALmixer_Channel_List[channel].fade_inv_time = 1.0f / fade_ticks; | |
3559 | |
3560 return retval; | |
3561 | |
3562 } | |
3563 | |
3564 | |
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3565 static ALuint Internal_FadeInSourceTimed(ALuint source, ALmixer_Data* data, ALint loops, ALuint fade_ticks, ALint expire_ticks) |
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3566 { |
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3567 ALint channel; |
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3568 ALint retval; |
0 | 3569 if(0 == source) |
3570 { | |
3571 retval = Internal_FadeInChannelTimed(-1, data, loops, fade_ticks, expire_ticks); | |
3572 if(-1 == retval) | |
3573 { | |
3574 return 0; | |
3575 } | |
3576 else | |
3577 { | |
3578 return Internal_GetSource(retval); | |
3579 } | |
3580 } | |
3581 | |
3582 channel = Internal_GetChannel(source); | |
3583 if(-1 == channel) | |
3584 { | |
3585 ALmixer_SetError("Cannot FadeIn source: %s", ALmixer_GetError()); | |
3586 return 0; | |
3587 } | |
3588 retval = Internal_FadeInChannelTimed(channel, data, loops, fade_ticks, expire_ticks); | |
3589 if(-1 == retval) | |
3590 { | |
3591 return 0; | |
3592 } | |
3593 else | |
3594 { | |
3595 return source; | |
3596 } | |
3597 /* make compiler happy */ | |
3598 return 0; | |
3599 } | |
3600 | |
3601 | |
3602 | |
3603 | |
3604 /* Will fade out currently playing channels. | |
3605 * It starts at the current volume level and goes down */ | |
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3606 static ALint Internal_FadeOutChannel(ALint channel, ALuint ticks) |
0 | 3607 { |
3608 ALfloat value; | |
3609 ALenum error; | |
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3610 ALuint current_time = ALmixer_GetTicks(); |
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3611 ALuint counter = 0; |
0 | 3612 |
3613 /* We can't accept 0 as a value because of div-by-zero. | |
3614 * If zero, just call Halt at normal | |
3615 * volume | |
3616 */ | |
3617 if(0 == ticks) | |
3618 { | |
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3619 return Internal_HaltChannel(channel, AL_FALSE); |
0 | 3620 } |
3621 | |
3622 | |
3623 if(channel >= Number_of_Channels_global) | |
3624 { | |
3625 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); | |
3626 return -1; | |
3627 } | |
3628 | |
3629 if(channel >= 0) | |
3630 { | |
3631 if(ALmixer_Channel_List[channel].channel_in_use) | |
3632 { | |
3633 /* Get the current volume */ | |
3634 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
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3635 AL_GAIN, &value); |
0 | 3636 ALmixer_Channel_List[channel].fade_start_volume = value; |
3637 if((error = alGetError()) != AL_NO_ERROR) | |
3638 { | |
3639 fprintf(stderr, "40Testing error: %s\n", | |
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3640 alGetString(error)); |
0 | 3641 } |
3642 | |
3643 /* Get the Min volume */ | |
3644 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
3645 AL_MIN_GAIN, &value); | |
3646 if((error = alGetError()) != AL_NO_ERROR) | |
3647 { | |
3648 fprintf(stderr, "41Testing error: %s\n", | |
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3649 alGetString(error)); |
0 | 3650 } |
3651 ALmixer_Channel_List[channel].fade_end_volume = value; | |
3652 | |
3653 /* Set expire start time */ | |
3654 ALmixer_Channel_List[channel].start_time = current_time; | |
3655 /* Set the expire ticks */ | |
3656 ALmixer_Channel_List[channel].expire_ticks = ticks; | |
3657 /* Set fade start time */ | |
3658 ALmixer_Channel_List[channel].fade_start_time = current_time; | |
3659 /* Set the fade expire ticks */ | |
3660 ALmixer_Channel_List[channel].fade_expire_ticks = ticks; | |
3661 /* Enable fading effects via the flag */ | |
3662 ALmixer_Channel_List[channel].fade_enabled = 1; | |
3663 | |
3664 /* Set 1/(endtime-starttime) or 1/deltaT */ | |
3665 ALmixer_Channel_List[channel].fade_inv_time = 1.0f / ticks; | |
3666 | |
3667 counter++; | |
3668 } | |
3669 } | |
3670 /* Else need to fade out all channels */ | |
3671 else | |
3672 { | |
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3673 ALint i; |
0 | 3674 for(i=0; i<Number_of_Channels_global; i++) |
3675 { | |
3676 if(ALmixer_Channel_List[i].channel_in_use) | |
3677 { | |
3678 /* Get the current volume */ | |
3679 alGetSourcef(ALmixer_Channel_List[i].alsource, | |
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|
3680 AL_GAIN, &value); |
0 | 3681 ALmixer_Channel_List[i].fade_start_volume = value; |
3682 if((error = alGetError()) != AL_NO_ERROR) | |
3683 { | |
3684 fprintf(stderr, "42Testing error: %s\n", | |
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3685 alGetString(error)); |
0 | 3686 } |
3687 | |
3688 /* Get the Min volume */ | |
3689 alGetSourcef(ALmixer_Channel_List[i].alsource, | |
3690 AL_MIN_GAIN, &value); | |
3691 if((error = alGetError()) != AL_NO_ERROR) | |
3692 { | |
3693 fprintf(stderr, "43Testing error: %s\n", | |
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3694 alGetString(error)); |
0 | 3695 } |
3696 ALmixer_Channel_List[i].fade_end_volume = value; | |
3697 | |
3698 /* Set expire start time */ | |
3699 ALmixer_Channel_List[i].start_time = current_time; | |
3700 /* Set the expire ticks */ | |
3701 ALmixer_Channel_List[i].expire_ticks = ticks; | |
3702 /* Set fade start time */ | |
3703 ALmixer_Channel_List[i].fade_start_time = current_time; | |
3704 /* Set the fade expire ticks */ | |
3705 ALmixer_Channel_List[i].fade_expire_ticks = ticks; | |
3706 /* Enable fading effects via the flag */ | |
3707 ALmixer_Channel_List[i].fade_enabled = 1; | |
3708 | |
3709 /* Set 1/(endtime-starttime) or 1/deltaT */ | |
3710 ALmixer_Channel_List[i].fade_inv_time = 1.0f / ticks; | |
3711 | |
3712 counter++; | |
3713 } | |
3714 } /* End for loop */ | |
3715 } | |
3716 return counter; | |
3717 } | |
3718 | |
3719 | |
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3720 static ALint Internal_FadeOutSource(ALuint source, ALuint ticks) |
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3721 { |
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3722 ALint channel; |
0 | 3723 if(0 == source) |
3724 { | |
3725 return Internal_FadeOutChannel(-1, ticks); | |
3726 } | |
3727 | |
3728 channel = Internal_GetChannel(source); | |
3729 if(-1 == channel) | |
3730 { | |
3731 ALmixer_SetError("Cannot FadeOut source: %s", ALmixer_GetError()); | |
3732 return -1; | |
3733 } | |
3734 return Internal_FadeOutChannel(channel, ticks); | |
3735 } | |
3736 | |
3737 | |
3738 /* Will fade currently playing channels. | |
3739 * It starts at the current volume level and go to target | |
3740 * Only affects channels that are playing | |
3741 */ | |
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3742 static ALint Internal_FadeChannel(ALint channel, ALuint ticks, ALfloat volume) |
0 | 3743 { |
3744 ALfloat value; | |
3745 ALenum error; | |
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3746 ALuint current_time = ALmixer_GetTicks(); |
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3747 ALuint counter = 0; |
0 | 3748 |
3749 if(channel >= Number_of_Channels_global) | |
3750 { | |
3751 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); | |
3752 return -1; | |
3753 } | |
3754 | |
3755 if(channel >= 0) | |
3756 { | |
3757 if(volume < ALmixer_Channel_List[channel].min_volume) | |
3758 { | |
3759 volume = ALmixer_Channel_List[channel].min_volume; | |
3760 } | |
3761 else if(volume > ALmixer_Channel_List[channel].max_volume) | |
3762 { | |
3763 volume = ALmixer_Channel_List[channel].max_volume; | |
3764 } | |
3765 | |
3766 if(ALmixer_Channel_List[channel].channel_in_use) | |
3767 { | |
3768 if(ticks > 0) | |
3769 { | |
3770 /* Get the current volume */ | |
3771 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
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|
3772 AL_GAIN, &value); |
0 | 3773 if((error = alGetError()) != AL_NO_ERROR) |
3774 { | |
3775 fprintf(stderr, "44Testing error: %s\n", | |
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|
3776 alGetString(error)); |
0 | 3777 } |
3778 ALmixer_Channel_List[channel].fade_start_volume = value; | |
3779 | |
3780 /* Set the target volume */ | |
3781 ALmixer_Channel_List[channel].fade_end_volume = volume; | |
3782 | |
3783 /* Set fade start time */ | |
3784 ALmixer_Channel_List[channel].fade_start_time = current_time; | |
3785 /* Set the fade expire ticks */ | |
3786 ALmixer_Channel_List[channel].fade_expire_ticks = ticks; | |
3787 /* Enable fading effects via the flag */ | |
3788 ALmixer_Channel_List[channel].fade_enabled = 1; | |
3789 | |
3790 /* Set 1/(endtime-starttime) or 1/deltaT */ | |
3791 ALmixer_Channel_List[channel].fade_inv_time = 1.0f / ticks; | |
3792 } | |
3793 else | |
3794 { | |
3795 alSourcef(ALmixer_Channel_List[channel].alsource, | |
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|
3796 AL_GAIN, volume); |
0 | 3797 if((error = alGetError()) != AL_NO_ERROR) |
3798 { | |
3799 fprintf(stderr, "45Testing error: %s\n", | |
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|
3800 alGetString(error)); |
0 | 3801 } |
3802 } | |
3803 counter++; | |
3804 } | |
3805 } | |
3806 /* Else need to fade out all channels */ | |
3807 else | |
3808 { | |
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3809 ALint i; |
0 | 3810 for(i=0; i<Number_of_Channels_global; i++) |
3811 { | |
3812 if(volume < ALmixer_Channel_List[i].min_volume) | |
3813 { | |
3814 volume = ALmixer_Channel_List[i].min_volume; | |
3815 } | |
3816 else if(volume > ALmixer_Channel_List[i].max_volume) | |
3817 { | |
3818 volume = ALmixer_Channel_List[i].max_volume; | |
3819 } | |
3820 | |
3821 if(ALmixer_Channel_List[i].channel_in_use) | |
3822 { | |
3823 if(ticks > 0) | |
3824 { | |
3825 /* Get the current volume */ | |
3826 alGetSourcef(ALmixer_Channel_List[i].alsource, | |
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|
3827 AL_GAIN, &value); |
0 | 3828 if((error = alGetError()) != AL_NO_ERROR) |
3829 { | |
3830 fprintf(stderr, "46Testing error: %s\n", | |
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|
3831 alGetString(error)); |
0 | 3832 } |
3833 ALmixer_Channel_List[i].fade_start_volume = value; | |
3834 | |
3835 /* Set target volume */ | |
3836 ALmixer_Channel_List[i].fade_end_volume = volume; | |
3837 | |
3838 /* Set fade start time */ | |
3839 ALmixer_Channel_List[i].fade_start_time = current_time; | |
3840 /* Set the fade expire ticks */ | |
3841 ALmixer_Channel_List[i].fade_expire_ticks = ticks; | |
3842 /* Enable fading effects via the flag */ | |
3843 ALmixer_Channel_List[i].fade_enabled = 1; | |
3844 | |
3845 /* Set 1/(endtime-starttime) or 1/deltaT */ | |
3846 ALmixer_Channel_List[i].fade_inv_time = 1.0f / ticks; | |
3847 } | |
3848 else | |
3849 { | |
3850 alSourcef(ALmixer_Channel_List[i].alsource, | |
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3851 AL_GAIN, volume); |
0 | 3852 if((error = alGetError()) != AL_NO_ERROR) |
3853 { | |
3854 fprintf(stderr, "47Testing error: %s\n", | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3855 alGetString(error)); |
0 | 3856 } |
3857 } | |
3858 counter++; | |
3859 } | |
3860 } /* End for loop */ | |
3861 } | |
3862 return counter; | |
3863 } | |
3864 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3865 static ALint Internal_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
|
3866 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3867 ALint channel; |
0 | 3868 if(0 == source) |
3869 { | |
3870 return Internal_FadeChannel(-1, ticks, volume); | |
3871 } | |
3872 | |
3873 channel = Internal_GetChannel(source); | |
3874 if(-1 == channel) | |
3875 { | |
3876 ALmixer_SetError("Cannot Fade source: %s", ALmixer_GetError()); | |
3877 return -1; | |
3878 } | |
3879 return Internal_FadeChannel(channel, ticks, volume); | |
3880 } | |
3881 | |
3882 | |
3883 | |
3884 | |
3885 /* Set a volume regardless if it's in use or not. | |
3886 */ | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3887 static ALboolean Internal_SetVolumeChannel(ALint channel, ALfloat volume) |
0 | 3888 { |
3889 ALenum error; | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3890 ALboolean retval = AL_TRUE; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3891 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3892 if(channel >= Number_of_Channels_global) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3893 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3894 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
|
3895 return AL_FALSE; |
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 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3898 if(channel >= 0) |
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 if(volume < 0.0f) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3901 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3902 volume = 0.0f; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3903 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3904 else if(volume > 1.0f) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3905 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3906 volume = 1.0f; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3907 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3908 alSourcef(ALmixer_Channel_List[channel].alsource, |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3909 AL_GAIN, volume); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3910 if((error = alGetError()) != AL_NO_ERROR) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3911 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3912 ALmixer_SetError("%s", |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3913 alGetString(error) ); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3914 retval = AL_FALSE; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3915 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3916 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3917 else |
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 ALint i; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3920 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
|
3921 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3922 if(volume < 0.0f) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3923 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3924 volume = 0.0f; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3925 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3926 else if(volume > 1.0f) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3927 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3928 volume = 1.0f; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3929 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3930 alSourcef(ALmixer_Channel_List[i].alsource, |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3931 AL_GAIN, volume); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3932 if((error = alGetError()) != AL_NO_ERROR) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3933 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3934 ALmixer_SetError("%s", |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3935 alGetString(error) ); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3936 retval = AL_FALSE; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3937 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3938 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3939 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3940 return retval; |
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 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
|
3944 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3945 ALint channel; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3946 if(0 == source) |
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 return Internal_SetVolumeChannel(-1, volume); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3949 } |
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 channel = Internal_GetChannel(source); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3952 if(-1 == channel) |
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 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
|
3955 return AL_FALSE; |
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 return Internal_SetVolumeChannel(channel, volume); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3958 } |
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 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3961 static ALfloat Internal_GetVolumeChannel(ALint channel) |
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 ALfloat value; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3964 ALenum error; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3965 ALfloat running_total = 0.0f; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3966 ALfloat retval = 0.0f; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3967 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3968 if(channel >= Number_of_Channels_global) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3969 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3970 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
|
3971 return -1.0f; |
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 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3974 if(channel >= 0) |
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 alGetSourcef(ALmixer_Channel_List[channel].alsource, |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3977 AL_GAIN, &value); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3978 if((error = alGetError()) != AL_NO_ERROR) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3979 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3980 ALmixer_SetError("%s", alGetString(error) ); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3981 retval = -1.0f; |
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 else |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3984 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3985 retval = value; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3986 } |
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 else |
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 ALint i; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3991 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
|
3992 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3993 alGetSourcef(ALmixer_Channel_List[i].alsource, |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3994 AL_GAIN, &value); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3995 if((error = alGetError()) != AL_NO_ERROR) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3996 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3997 ALmixer_SetError("%s", alGetString(error) ); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
3998 retval = -1; |
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 else |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4001 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
4002 running_total += value; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
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4003 } |
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4004 } |
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4005 if(0 == Number_of_Channels_global) |
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4006 { |
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4007 ALmixer_SetError("No channels are allocated"); |
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4008 retval = -1.0f; |
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4009 } |
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4010 else |
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4011 { |
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4012 retval = running_total / Number_of_Channels_global; |
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4013 } |
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4014 } |
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4015 return retval; |
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4016 } |
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4017 |
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4018 static ALfloat Internal_GetVolumeSource(ALuint source) |
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4019 { |
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4020 ALint channel; |
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4021 if(0 == source) |
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4022 { |
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4023 return Internal_GetVolumeChannel(-1); |
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4024 } |
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4025 |
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4026 channel = Internal_GetChannel(source); |
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4027 if(-1 == channel) |
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4028 { |
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4029 ALmixer_SetError("Cannot GetVolume: %s", ALmixer_GetError()); |
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4030 return -1.0f; |
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4031 } |
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4032 |
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4033 return Internal_GetVolumeChannel(channel); |
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4034 } |
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4035 |
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4036 |
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4037 |
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4038 /* Set a volume regardless if it's in use or not. |
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4039 */ |
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4040 static ALboolean Internal_SetMaxVolumeChannel(ALint channel, ALfloat volume) |
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4041 { |
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4042 ALenum error; |
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4043 ALboolean retval = AL_TRUE; |
0 | 4044 |
4045 if(channel >= Number_of_Channels_global) | |
4046 { | |
4047 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); | |
2
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4048 return AL_FALSE; |
0 | 4049 } |
4050 | |
4051 if(channel >= 0) | |
4052 { | |
4053 if(volume < 0.0f) | |
4054 { | |
4055 volume = 0.0f; | |
4056 } | |
4057 else if(volume > 1.0f) | |
4058 { | |
4059 volume = 1.0f; | |
4060 } | |
4061 ALmixer_Channel_List[channel].max_volume = volume; | |
4062 alSourcef(ALmixer_Channel_List[channel].alsource, | |
4063 AL_MAX_GAIN, volume); | |
4064 if((error = alGetError()) != AL_NO_ERROR) | |
4065 { | |
4066 ALmixer_SetError("%s", | |
2
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4067 alGetString(error) ); |
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4068 retval = AL_FALSE; |
0 | 4069 } |
4070 if(ALmixer_Channel_List[channel].max_volume < ALmixer_Channel_List[channel].min_volume) | |
4071 { | |
4072 ALmixer_Channel_List[channel].min_volume = volume; | |
4073 alSourcef(ALmixer_Channel_List[channel].alsource, | |
4074 AL_MIN_GAIN, volume); | |
4075 if((error = alGetError()) != AL_NO_ERROR) | |
4076 { | |
4077 ALmixer_SetError("%s", | |
2
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|
4078 alGetString(error) ); |
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4079 retval = AL_FALSE; |
0 | 4080 } |
4081 } | |
4082 } | |
4083 else | |
4084 { | |
2
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4085 ALint i; |
0 | 4086 for(i=0; i<Number_of_Channels_global; i++) |
4087 { | |
4088 if(volume < 0.0f) | |
4089 { | |
4090 volume = 0.0f; | |
4091 } | |
4092 else if(volume > 1.0f) | |
4093 { | |
4094 volume = 1.0f; | |
4095 } | |
4096 ALmixer_Channel_List[i].max_volume = volume; | |
4097 alSourcef(ALmixer_Channel_List[i].alsource, | |
4098 AL_MAX_GAIN, volume); | |
4099 if((error = alGetError()) != AL_NO_ERROR) | |
4100 { | |
4101 ALmixer_SetError("%s", | |
2
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4102 alGetString(error) ); |
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4103 retval = AL_FALSE; |
0 | 4104 } |
4105 if(ALmixer_Channel_List[i].max_volume < ALmixer_Channel_List[i].min_volume) | |
4106 { | |
4107 ALmixer_Channel_List[i].min_volume = volume; | |
4108 alSourcef(ALmixer_Channel_List[i].alsource, | |
4109 AL_MIN_GAIN, volume); | |
4110 if((error = alGetError()) != AL_NO_ERROR) | |
4111 { | |
4112 ALmixer_SetError("%s", | |
2
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4113 alGetString(error) ); |
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4114 retval = AL_FALSE; |
0 | 4115 } |
4116 } | |
4117 } | |
4118 } | |
4119 return retval; | |
4120 } | |
4121 | |
2
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4122 static ALint Internal_SetMaxVolumeSource(ALuint source, ALfloat volume) |
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4123 { |
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|
4124 ALint channel; |
0 | 4125 if(0 == source) |
4126 { | |
4127 return Internal_SetMaxVolumeChannel(-1, volume); | |
4128 } | |
4129 | |
4130 channel = Internal_GetChannel(source); | |
4131 if(-1 == channel) | |
4132 { | |
4133 ALmixer_SetError("Cannot SetMaxVolume: %s", ALmixer_GetError()); | |
2
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4134 return AL_FALSE; |
0 | 4135 } |
4136 return Internal_SetMaxVolumeChannel(channel, volume); | |
4137 } | |
4138 | |
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4139 static ALfloat Internal_GetMaxVolumeChannel(ALint channel) |
0 | 4140 { |
4141 /* | |
4142 ALfloat value; | |
4143 ALenum error; | |
4144 */ | |
4145 ALfloat running_total = 0.0f; | |
4146 ALfloat retval = 0.0f; | |
4147 | |
4148 if(channel >= Number_of_Channels_global) | |
4149 { | |
4150 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); | |
4151 return -1.0f; | |
4152 } | |
4153 | |
4154 if(channel >= 0) | |
4155 { | |
4156 /* | |
4157 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
4158 AL_GAIN, &value); | |
4159 if((error = alGetError()) != AL_NO_ERROR) | |
4160 { | |
4161 ALmixer_SetError("%s", | |
2
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|
4162 alGetString(error) ); |
0 | 4163 retval = -1.0f; |
4164 } | |
4165 else | |
4166 { | |
4167 retval = value; | |
4168 } | |
4169 */ | |
4170 retval = ALmixer_Channel_List[channel].max_volume; | |
4171 | |
4172 } | |
4173 else | |
4174 { | |
2
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|
4175 ALint i; |
0 | 4176 for(i=0; i<Number_of_Channels_global; i++) |
4177 { | |
4178 /* | |
4179 alGetSourcef(ALmixer_Channel_List[i].alsource, | |
4180 AL_GAIN, &value); | |
4181 if((error = alGetError()) != AL_NO_ERROR) | |
4182 { | |
4183 ALmixer_SetError("%s", | |
2
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|
4184 alGetString(error) ); |
0 | 4185 retval = -1; |
4186 } | |
4187 else | |
4188 { | |
4189 running_total += value; | |
4190 } | |
4191 */ | |
4192 running_total += ALmixer_Channel_List[i].max_volume; | |
4193 } | |
4194 if(0 == Number_of_Channels_global) | |
4195 { | |
4196 ALmixer_SetError("No channels are allocated"); | |
4197 retval = -1.0f; | |
4198 } | |
4199 else | |
4200 { | |
4201 retval = running_total / Number_of_Channels_global; | |
4202 } | |
4203 } | |
4204 return retval; | |
4205 } | |
4206 | |
4207 static ALfloat Internal_GetMaxVolumeSource(ALuint source) | |
4208 { | |
2
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|
4209 ALint channel; |
0 | 4210 if(0 == source) |
4211 { | |
4212 return Internal_GetMaxVolumeChannel(-1); | |
4213 } | |
4214 | |
4215 channel = Internal_GetChannel(source); | |
4216 if(-1 == channel) | |
4217 { | |
4218 ALmixer_SetError("Cannot GetVolume: %s", ALmixer_GetError()); | |
4219 return -1.0f; | |
4220 } | |
4221 | |
4222 return Internal_GetMaxVolumeChannel(channel); | |
4223 } | |
4224 | |
4225 | |
4226 /* Set a volume regardless if it's in use or not. | |
4227 */ | |
2
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4228 static ALboolean Internal_SetMinVolumeChannel(ALint channel, ALfloat volume) |
0 | 4229 { |
4230 ALenum error; | |
2
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|
4231 ALboolean retval = AL_TRUE; |
0 | 4232 |
4233 if(channel >= Number_of_Channels_global) | |
4234 { | |
4235 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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|
4236 return AL_FALSE; |
0 | 4237 } |
4238 | |
4239 if(channel >= 0) | |
4240 { | |
4241 if(volume < 0.0f) | |
4242 { | |
4243 volume = 0.0f; | |
4244 } | |
4245 else if(volume > 1.0f) | |
4246 { | |
4247 volume = 1.0f; | |
4248 } | |
4249 ALmixer_Channel_List[channel].min_volume = volume; | |
4250 alSourcef(ALmixer_Channel_List[channel].alsource, | |
4251 AL_MIN_GAIN, volume); | |
4252 if((error = alGetError()) != AL_NO_ERROR) | |
4253 { | |
4254 ALmixer_SetError("%s", | |
2
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|
4255 alGetString(error) ); |
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|
4256 retval = AL_FALSE; |
0 | 4257 } |
4258 if(ALmixer_Channel_List[channel].max_volume < ALmixer_Channel_List[channel].min_volume) | |
4259 { | |
4260 ALmixer_Channel_List[channel].max_volume = volume; | |
4261 alSourcef(ALmixer_Channel_List[channel].alsource, | |
4262 AL_MAX_GAIN, volume); | |
4263 if((error = alGetError()) != AL_NO_ERROR) | |
4264 { | |
4265 ALmixer_SetError("%s", | |
2
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|
4266 alGetString(error) ); |
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4267 retval = AL_FALSE; |
0 | 4268 } |
4269 } | |
4270 } | |
4271 else | |
4272 { | |
2
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|
4273 ALint i; |
0 | 4274 for(i=0; i<Number_of_Channels_global; i++) |
4275 { | |
4276 if(volume < 0.0f) | |
4277 { | |
4278 volume = 0.0f; | |
4279 } | |
4280 else if(volume > 1.0f) | |
4281 { | |
4282 volume = 1.0f; | |
4283 } | |
4284 ALmixer_Channel_List[i].min_volume = volume; | |
4285 alSourcef(ALmixer_Channel_List[i].alsource, | |
4286 AL_MIN_GAIN, volume); | |
4287 if((error = alGetError()) != AL_NO_ERROR) | |
4288 { | |
4289 ALmixer_SetError("%s", | |
2
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|
4290 alGetString(error) ); |
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|
4291 retval = AL_FALSE; |
0 | 4292 } |
4293 if(ALmixer_Channel_List[i].max_volume < ALmixer_Channel_List[i].min_volume) | |
4294 { | |
4295 ALmixer_Channel_List[i].max_volume = volume; | |
4296 alSourcef(ALmixer_Channel_List[i].alsource, | |
4297 AL_MAX_GAIN, volume); | |
4298 if((error = alGetError()) != AL_NO_ERROR) | |
4299 { | |
4300 ALmixer_SetError("%s", | |
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|
4301 alGetString(error) ); |
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|
4302 retval = AL_FALSE; |
0 | 4303 } |
4304 } | |
4305 } | |
4306 } | |
4307 return retval; | |
4308 } | |
4309 | |
2
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|
4310 static ALboolean Internal_SetMinVolumeSource(ALuint source, ALfloat volume) |
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|
4311 { |
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|
4312 ALint channel; |
0 | 4313 if(0 == source) |
4314 { | |
4315 return Internal_SetMinVolumeChannel(-1, volume); | |
4316 } | |
4317 | |
4318 channel = Internal_GetChannel(source); | |
4319 if(-1 == channel) | |
4320 { | |
4321 ALmixer_SetError("Cannot SetMaxVolume: %s", ALmixer_GetError()); | |
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|
4322 return AL_FALSE; |
0 | 4323 } |
4324 return Internal_SetMinVolumeChannel(channel, volume); | |
4325 } | |
4326 | |
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4327 static ALfloat Internal_GetMinVolumeChannel(ALint channel) |
0 | 4328 { |
4329 /* | |
4330 ALfloat value; | |
4331 ALenum error; | |
4332 */ | |
4333 ALfloat running_total = 0.0f; | |
4334 ALfloat retval = 0.0f; | |
4335 | |
4336 if(channel >= Number_of_Channels_global) | |
4337 { | |
4338 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); | |
4339 return -1.0f; | |
4340 } | |
4341 | |
4342 if(channel >= 0) | |
4343 { | |
4344 /* | |
4345 alGetSourcef(ALmixer_Channel_List[channel].alsource, | |
4346 AL_GAIN, &value); | |
4347 if((error = alGetError()) != AL_NO_ERROR) | |
4348 { | |
4349 ALmixer_SetError("%s", | |
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4350 alGetString(error) ); |
0 | 4351 retval = -1.0f; |
4352 } | |
4353 else | |
4354 { | |
4355 retval = value; | |
4356 } | |
4357 */ | |
4358 retval = ALmixer_Channel_List[channel].min_volume; | |
4359 | |
4360 } | |
4361 else | |
4362 { | |
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4363 ALint i; |
0 | 4364 for(i=0; i<Number_of_Channels_global; i++) |
4365 { | |
4366 /* | |
4367 alGetSourcef(ALmixer_Channel_List[i].alsource, | |
4368 AL_GAIN, &value); | |
4369 if((error = alGetError()) != AL_NO_ERROR) | |
4370 { | |
4371 ALmixer_SetError("%s", | |
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4372 alGetString(error) ); |
0 | 4373 retval = -1; |
4374 } | |
4375 else | |
4376 { | |
4377 running_total += value; | |
4378 } | |
4379 */ | |
4380 running_total += ALmixer_Channel_List[i].min_volume; | |
4381 } | |
4382 if(0 == Number_of_Channels_global) | |
4383 { | |
4384 ALmixer_SetError("No channels are allocated"); | |
4385 retval = -1.0f; | |
4386 } | |
4387 else | |
4388 { | |
4389 retval = running_total / Number_of_Channels_global; | |
4390 } | |
4391 } | |
4392 return retval; | |
4393 } | |
4394 | |
4395 static ALfloat Internal_GetMinVolumeSource(ALuint source) | |
4396 { | |
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4397 ALint channel; |
0 | 4398 if(0 == source) |
4399 { | |
4400 return Internal_GetMinVolumeChannel(-1); | |
4401 } | |
4402 | |
4403 channel = Internal_GetChannel(source); | |
4404 if(-1 == channel) | |
4405 { | |
4406 ALmixer_SetError("Cannot GetVolume: %s", ALmixer_GetError()); | |
4407 return -1.0f; | |
4408 } | |
4409 | |
4410 return Internal_GetMinVolumeChannel(channel); | |
4411 } | |
4412 | |
4413 | |
4414 /* Changes the listener volume */ | |
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4415 static ALboolean Internal_SetMasterVolume(ALfloat volume) |
0 | 4416 { |
4417 ALenum error; | |
4418 alListenerf(AL_GAIN, volume); | |
4419 if((error = alGetError()) != AL_NO_ERROR) | |
4420 { | |
4421 ALmixer_SetError("%s", | |
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4422 alGetString(error) ); |
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4423 return AL_FALSE; |
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4424 } |
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4425 return AL_TRUE; |
0 | 4426 } |
4427 | |
4428 static ALfloat Internal_GetMasterVolume() | |
4429 { | |
4430 ALenum error; | |
4431 ALfloat volume; | |
4432 alGetListenerf(AL_GAIN, &volume); | |
4433 if((error = alGetError()) != AL_NO_ERROR) | |
4434 { | |
4435 ALmixer_SetError("%s", | |
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4436 alGetString(error) ); |
0 | 4437 return -1.0f; |
4438 } | |
4439 return volume; | |
4440 } | |
4441 | |
4442 | |
4443 | |
4444 | |
4445 /* Will fade out currently playing channels. | |
4446 * It starts at the current volume level and goes down */ | |
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4447 static ALint Internal_ExpireChannel(ALint channel, ALint ticks) |
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4448 { |
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4449 ALuint current_time = ALmixer_GetTicks(); |
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4450 ALuint counter = 0; |
0 | 4451 |
4452 /* We can't accept 0 as a value because of div-by-zero. | |
4453 * If zero, just call Halt at normal | |
4454 * volume | |
4455 */ | |
4456 if(0 == ticks) | |
4457 { | |
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4458 return Internal_HaltChannel(channel, AL_FALSE); |
0 | 4459 } |
4460 if(ticks < -1) | |
4461 { | |
4462 ticks = -1; | |
4463 } | |
4464 | |
4465 | |
4466 if(channel >= Number_of_Channels_global) | |
4467 { | |
4468 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); | |
4469 return -1; | |
4470 } | |
4471 | |
4472 if(channel >= 0) | |
4473 { | |
4474 if(ALmixer_Channel_List[channel].channel_in_use) | |
4475 { | |
4476 /* Set expire start time */ | |
4477 ALmixer_Channel_List[channel].start_time = current_time; | |
4478 /* Set the expire ticks */ | |
4479 ALmixer_Channel_List[channel].expire_ticks = ticks; | |
4480 | |
4481 counter++; | |
4482 } | |
4483 } | |
4484 /* Else need to fade out all channels */ | |
4485 else | |
4486 { | |
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4487 ALint i; |
0 | 4488 for(i=0; i<Number_of_Channels_global; i++) |
4489 { | |
4490 if(ALmixer_Channel_List[i].channel_in_use) | |
4491 { | |
4492 /* Set expire start time */ | |
4493 ALmixer_Channel_List[i].start_time = current_time; | |
4494 /* Set the expire ticks */ | |
4495 ALmixer_Channel_List[i].expire_ticks = ticks; | |
4496 | |
4497 counter++; | |
4498 } | |
4499 } /* End for loop */ | |
4500 } | |
4501 return counter; | |
4502 } | |
4503 | |
4504 | |
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4505 static ALint Internal_ExpireSource(ALuint source, ALint ticks) |
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4506 { |
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4507 ALint channel; |
0 | 4508 if(0 == source) |
4509 { | |
4510 return Internal_ExpireChannel(-1, ticks); | |
4511 } | |
4512 | |
4513 channel = Internal_GetChannel(source); | |
4514 if(-1 == channel) | |
4515 { | |
4516 ALmixer_SetError("Cannot Expire source: %s", ALmixer_GetError()); | |
4517 return -1; | |
4518 } | |
4519 return Internal_ExpireChannel(channel, ticks); | |
4520 } | |
4521 | |
4522 | |
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4523 static ALint Internal_QueryChannel(ALint channel) |
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4524 { |
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4525 ALint i; |
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4526 ALint counter = 0; |
0 | 4527 if(channel >= Number_of_Channels_global) |
4528 { | |
4529 ALmixer_SetError("Invalid channel: %d", channel); | |
4530 return -1; | |
4531 } | |
4532 | |
4533 if(channel >= 0) | |
4534 { | |
4535 return ALmixer_Channel_List[channel].channel_in_use; | |
4536 } | |
4537 | |
4538 /* Else, return the number of channels in use */ | |
4539 for(i=0; i<Number_of_Channels_global; i++) | |
4540 { | |
4541 if(ALmixer_Channel_List[i].channel_in_use) | |
4542 { | |
4543 counter++; | |
4544 } | |
4545 } | |
4546 return counter; | |
4547 } | |
4548 | |
4549 | |
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4550 static ALint Internal_QuerySource(ALuint source) |
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4551 { |
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4552 ALint channel; |
0 | 4553 if(0 == source) |
4554 { | |
4555 return Internal_QueryChannel(-1); | |
4556 } | |
4557 | |
4558 channel = Internal_GetChannel(source); | |
4559 if(-1 == channel) | |
4560 { | |
4561 ALmixer_SetError("Cannot query source: %s", ALmixer_GetError()); | |
4562 return -1; | |
4563 } | |
4564 | |
4565 return Internal_QueryChannel(channel); | |
4566 } | |
4567 | |
4568 | |
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4569 static ALuint Internal_CountUnreservedUsedChannels() |
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4570 { |
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4571 ALint i; |
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4572 ALuint counter = 0; |
0 | 4573 |
4574 | |
4575 /* Else, return the number of channels in use */ | |
4576 for(i=Number_of_Reserve_Channels_global; i<Number_of_Channels_global; i++) | |
4577 { | |
4578 if(ALmixer_Channel_List[i].channel_in_use) | |
4579 { | |
4580 counter++; | |
4581 } | |
4582 } | |
4583 return counter; | |
4584 } | |
4585 | |
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4586 static ALuint Internal_CountUnreservedFreeChannels() |
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4587 { |
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4588 ALint i; |
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4589 ALuint counter = 0; |
0 | 4590 |
4591 | |
4592 /* Else, return the number of channels in use */ | |
4593 for(i=Number_of_Reserve_Channels_global; i<Number_of_Channels_global; i++) | |
4594 { | |
4595 if( ! ALmixer_Channel_List[i].channel_in_use) | |
4596 { | |
4597 counter++; | |
4598 } | |
4599 } | |
4600 return counter; | |
4601 } | |
4602 | |
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4603 static ALuint Internal_CountAllUsedChannels() |
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4604 { |
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4605 ALint i; |
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4606 ALuint counter = 0; |
0 | 4607 |
4608 | |
4609 /* Else, return the number of channels in use */ | |
4610 for(i=0; i<Number_of_Channels_global; i++) | |
4611 { | |
4612 if(ALmixer_Channel_List[i].channel_in_use) | |
4613 { | |
4614 counter++; | |
4615 } | |
4616 } | |
4617 return counter; | |
4618 } | |
4619 | |
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4620 static ALuint Internal_CountAllFreeChannels() |
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4621 { |
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4622 ALint i; |
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4623 ALuint counter = 0; |
0 | 4624 |
4625 | |
4626 /* Else, return the number of channels in use */ | |
4627 for(i=0; i<Number_of_Channels_global; i++) | |
4628 { | |
4629 if( ! ALmixer_Channel_List[i].channel_in_use) | |
4630 { | |
4631 counter++; | |
4632 } | |
4633 } | |
4634 return counter; | |
4635 } | |
4636 | |
4637 | |
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4638 static ALint Internal_PlayingChannel(ALint channel) |
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4639 { |
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4640 ALint i; |
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4641 ALint counter = 0; |
0 | 4642 ALint state; |
4643 | |
4644 if(channel >= Number_of_Channels_global) | |
4645 { | |
4646 ALmixer_SetError("Invalid channel: %d", channel); | |
4647 return -1; | |
4648 } | |
4649 | |
4650 if(channel >= 0) | |
4651 { | |
4652 if(ALmixer_Channel_List[channel].channel_in_use) | |
4653 { | |
4654 alGetSourcei( | |
4655 ALmixer_Channel_List[channel].alsource, | |
4656 AL_SOURCE_STATE, &state | |
4657 ); | |
4658 if(AL_PLAYING == state) | |
4659 { | |
4660 return 1; | |
4661 } | |
4662 } | |
4663 return 0; | |
4664 } | |
4665 | |
4666 /* Else, return the number of channels in use */ | |
4667 for(i=0; i<Number_of_Channels_global; i++) | |
4668 { | |
4669 if(ALmixer_Channel_List[i].channel_in_use) | |
4670 { | |
4671 alGetSourcei( | |
4672 ALmixer_Channel_List[i].alsource, | |
4673 AL_SOURCE_STATE, &state | |
4674 ); | |
4675 if(AL_PLAYING == state) | |
4676 { | |
4677 counter++; | |
4678 } | |
4679 } | |
4680 } | |
4681 return counter; | |
4682 } | |
4683 | |
4684 | |
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4685 static ALint Internal_PlayingSource(ALuint source) |
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4686 { |
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4687 ALint channel; |
0 | 4688 if(0 == source) |
4689 { | |
4690 return Internal_PlayingChannel(-1); | |
4691 } | |
4692 | |
4693 channel = Internal_GetChannel(source); | |
4694 if(-1 == channel) | |
4695 { | |
4696 ALmixer_SetError("Cannot query source: %s", ALmixer_GetError()); | |
4697 return -1; | |
4698 } | |
4699 | |
4700 return Internal_PlayingChannel(channel); | |
4701 } | |
4702 | |
4703 | |
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4704 static ALint Internal_PausedChannel(ALint channel) |
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4705 { |
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4706 ALint i; |
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4707 ALint counter = 0; |
0 | 4708 ALint state; |
4709 | |
4710 if(channel >= Number_of_Channels_global) | |
4711 { | |
4712 ALmixer_SetError("Invalid channel: %d", channel); | |
4713 return -1; | |
4714 } | |
4715 | |
4716 if(channel >= 0) | |
4717 { | |
4718 if(ALmixer_Channel_List[channel].channel_in_use) | |
4719 { | |
4720 alGetSourcei( | |
4721 ALmixer_Channel_List[channel].alsource, | |
4722 AL_SOURCE_STATE, &state | |
4723 ); | |
4724 if(AL_PAUSED == state) | |
4725 { | |
4726 return 1; | |
4727 } | |
4728 } | |
4729 return 0; | |
4730 } | |
4731 | |
4732 /* Else, return the number of channels in use */ | |
4733 for(i=0; i<Number_of_Channels_global; i++) | |
4734 { | |
4735 if(ALmixer_Channel_List[i].channel_in_use) | |
4736 { | |
4737 alGetSourcei( | |
4738 ALmixer_Channel_List[i].alsource, | |
4739 AL_SOURCE_STATE, &state | |
4740 ); | |
4741 if(AL_PAUSED == state) | |
4742 { | |
4743 counter++; | |
4744 } | |
4745 } | |
4746 } | |
4747 return counter; | |
4748 } | |
4749 | |
4750 | |
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4751 static ALint Internal_PausedSource(ALuint source) |
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4752 { |
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|
4753 ALint channel; |
0 | 4754 if(0 == source) |
4755 { | |
4756 return Internal_PausedChannel(-1); | |
4757 } | |
4758 | |
4759 channel = Internal_GetChannel(source); | |
4760 if(-1 == channel) | |
4761 { | |
4762 ALmixer_SetError("Cannot query source: %s", ALmixer_GetError()); | |
4763 return -1; | |
4764 } | |
4765 | |
4766 return Internal_PausedChannel(channel); | |
4767 } | |
4768 | |
4769 | |
4770 | |
4771 | |
4772 | |
4773 | |
4774 /* Private function for Updating ALmixer. | |
4775 * This is a very big and ugly function. | |
4776 * It should return the number of buffers that were | |
4777 * queued during the call. The value might be | |
4778 * used to guage how long you might wait to | |
4779 * call the next update loop in case you are worried | |
4780 * about preserving CPU cycles. The idea is that | |
4781 * when a buffer is queued, there was probably some | |
4782 * CPU intensive looping which took awhile. | |
4783 * It's mainly provided as a convenience. | |
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4784 * Timing the call with ALmixer_GetTicks() would produce |
0 | 4785 * more accurate information. |
4786 * Returns a negative value if there was an error, | |
4787 * the value being the number of errors. | |
4788 */ | |
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4789 static ALint Update_ALmixer(void* data) |
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|
4790 { |
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4791 ALint retval = 0; |
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4792 ALint error_flag = 0; |
0 | 4793 ALenum error; |
4794 ALint state; | |
2
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4795 ALint i=0; |
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4796 |
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4797 #ifdef ENABLE_ALMIXER_THREADS |
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4798 SDL_LockMutex(s_simpleLock); |
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4799 #endif |
0 | 4800 if(0 == ALmixer_Initialized) |
4801 { | |
2
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4802 #ifdef ENABLE_ALMIXER_THREADS |
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4803 SDL_UnlockMutex(s_simpleLock); |
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4804 #endif |
0 | 4805 return 0; |
4806 } | |
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4807 |
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4808 /* Bypass if in interruption event */ |
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4809 if(NULL == alcGetCurrentContext()) |
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4810 { |
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4811 #ifdef ENABLE_ALMIXER_THREADS |
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4812 SDL_UnlockMutex(s_simpleLock); |
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4813 #endif |
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4814 return 0; |
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|
4815 } |
0 | 4816 |
4817 /* Check the quick flag to see if anything needs updating */ | |
4818 /* If anything is playing, then we have to do work */ | |
4819 if( 0 == Is_Playing_global) | |
4820 { | |
2
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4821 #ifdef ENABLE_ALMIXER_THREADS |
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4822 SDL_UnlockMutex(s_simpleLock); |
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4823 #endif |
0 | 4824 return 0; |
4825 } | |
4826 /* Clear error */ | |
4827 if((error = alGetError()) != AL_NO_ERROR) | |
4828 { | |
4829 fprintf(stderr, "08Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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4830 alGetString(error)); |
0 | 4831 } |
4832 alGetError(); | |
4833 | |
4834 for(i=0; i<Number_of_Channels_global; i++) | |
4835 { | |
4836 if( ALmixer_Channel_List[i].channel_in_use ) | |
4837 { | |
4838 | |
4839 /* For simplicity, before we do anything else, | |
4840 * we can check the timeout and fading values | |
4841 * and do the appropriate things | |
4842 */ | |
2
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4843 ALuint current_time = ALmixer_GetTicks(); |
0 | 4844 |
4845 /* Check to see if we need to halt due to Timed play */ | |
4846 if(ALmixer_Channel_List[i].expire_ticks != -1) | |
4847 { | |
2
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4848 ALuint target_time = (ALuint)ALmixer_Channel_List[i].expire_ticks |
0 | 4849 + ALmixer_Channel_List[i].start_time; |
4850 alGetSourcei(ALmixer_Channel_List[i].alsource, | |
4851 AL_SOURCE_STATE, &state); | |
4852 if((error = alGetError()) != AL_NO_ERROR) | |
4853 { | |
4854 fprintf(stderr, "06Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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4855 alGetString(error)); |
0 | 4856 } |
4857 | |
4858 /* Check the time, and also make sure that it is not | |
4859 * paused (if paused, we don't want to make the | |
4860 * evaluation because when resumed, we will adjust | |
4861 * the times to compensate for the pause). | |
4862 */ | |
4863 if( (current_time >= target_time) | |
4864 && (state != AL_PAUSED) ) | |
4865 { | |
4866 /* Stop the playback */ | |
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|
4867 Internal_HaltChannel(i, AL_FALSE); |
0 | 4868 if((error = alGetError()) != AL_NO_ERROR) |
4869 { | |
4870 fprintf(stderr, "07Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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4871 alGetString(error)); |
0 | 4872 } |
4873 | |
4874 /* Everything should be done so go on to the next loop */ | |
4875 continue; | |
4876 } | |
4877 } /* End if time expired check */ | |
4878 | |
4879 /* Check to see if we need to adjust the volume for fading */ | |
4880 if( ALmixer_Channel_List[i].fade_enabled ) | |
4881 { | |
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4882 ALuint target_time = ALmixer_Channel_List[i].fade_expire_ticks |
0 | 4883 + ALmixer_Channel_List[i].fade_start_time; |
4884 alGetSourcei(ALmixer_Channel_List[i].alsource, | |
4885 AL_SOURCE_STATE, &state); | |
4886 if((error = alGetError()) != AL_NO_ERROR) | |
4887 { | |
4888 fprintf(stderr, "05Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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4889 alGetString(error)); |
0 | 4890 } |
4891 | |
4892 /* Check the time, and also make sure that it is not | |
4893 * paused (if paused, we don't want to make the | |
4894 * evaluation because when resumed, we will adjust | |
4895 * the times to compensate for the pause). | |
4896 */ | |
4897 if(state != AL_PAUSED) | |
4898 { | |
4899 ALfloat t; | |
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4900 ALuint delta_time; |
0 | 4901 ALfloat current_volume; |
4902 if(current_time >= target_time) | |
4903 { | |
4904 /* Need to constrain value to the end time | |
4905 * (can't go pass the value for calculations) | |
4906 */ | |
4907 current_time = target_time; | |
4908 /* We can disable the fade flag now */ | |
4909 ALmixer_Channel_List[i].fade_enabled = 0; | |
4910 } | |
4911 /* Use the linear interpolation formula: | |
4912 * X = (1-t)x0 + tx1 | |
4913 * where x0 would be the start value | |
4914 * and x1 is the final value | |
4915 * and t is delta_time*inv_time (adjusts 0 <= time <= 1) | |
4916 * delta_time = current_time-start_time | |
4917 * inv_time = 1/ (end_time-start_time) | |
4918 * so t = current_time-start_time / (end_time-start_time) | |
4919 * | |
4920 */ | |
4921 delta_time = current_time - ALmixer_Channel_List[i].fade_start_time; | |
4922 t = (ALfloat) delta_time * ALmixer_Channel_List[i].fade_inv_time; | |
4923 current_volume = (1.0f-t) * ALmixer_Channel_List[i].fade_start_volume | |
4924 + t * ALmixer_Channel_List[i].fade_end_volume; | |
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|
4925 /* |
12
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|
4926 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); |
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4927 */ |
0 | 4928 /* Set the volume */ |
4929 alSourcef(ALmixer_Channel_List[i].alsource, | |
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|
4930 AL_GAIN, current_volume); |
0 | 4931 if((error = alGetError()) != AL_NO_ERROR) |
4932 { | |
4933 fprintf(stderr, "04Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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4934 alGetString(error)); |
0 | 4935 } |
4936 | |
4937 /* | |
4938 fprintf(stderr, "Current time =%d\n", current_time); | |
4939 fprintf(stderr, "Current vol=%f on channel %d\n", current_volume, i); | |
4940 */ | |
4941 } /* End if not PAUSED */ | |
4942 } /* End if fade_enabled */ | |
4943 | |
4944 | |
4945 /* Okay, now that the time expired and fading stuff | |
4946 * is done, do the rest of the hard stuff | |
4947 */ | |
4948 | |
4949 | |
4950 /* For predecoded, check to see if done */ | |
4951 if( ALmixer_Channel_List[i].almixer_data->decoded_all ) | |
4952 { | |
4953 | |
4954 #if 0 | |
4955 /********* Remove this **********/ | |
4956 ALint buffers_processed; | |
4957 ALint buffers_still_queued; | |
4958 fprintf(stderr, "For Predecoded\n"); | |
4959 | |
4960 alGetSourcei( | |
4961 ALmixer_Channel_List[i].alsource, | |
4962 AL_SOURCE_STATE, &state | |
4963 ); | |
4964 switch(state) { | |
4965 case AL_PLAYING: | |
4966 fprintf(stderr, "Channel '%d' is PLAYING\n", i); | |
4967 break; | |
4968 case AL_PAUSED: | |
4969 fprintf(stderr, "Channel '%d' is PAUSED\n",i); | |
4970 break; | |
4971 case AL_STOPPED: | |
4972 fprintf(stderr, "Channel '%d' is STOPPED\n",i); | |
4973 break; | |
4974 case AL_INITIAL: | |
4975 fprintf(stderr, "Channel '%d' is INITIAL\n",i); | |
4976 break; | |
4977 default: | |
4978 fprintf(stderr, "Channel '%d' is UNKNOWN\n",i); | |
4979 break; | |
4980 } | |
4981 | |
4982 alGetSourcei( | |
4983 ALmixer_Channel_List[i].alsource, | |
4984 AL_BUFFERS_PROCESSED, &buffers_processed | |
4985 ); | |
4986 fprintf(stderr, "Buffers processed = %d\n", buffers_processed); | |
4987 | |
4988 alGetSourcei( | |
4989 ALmixer_Channel_List[i].alsource, | |
4990 AL_BUFFERS_QUEUED, &buffers_still_queued | |
4991 ); | |
4992 | |
4993 /******** END REMOVE *******/ | |
4994 #endif | |
4995 /* FIXME: Ugh! Somewhere an alError is being thrown ("Invalid Enum Value"), but I can't | |
4996 * find it. It only seems to be thrown for OS X. I placed error messages after every al* | |
4997 * command I could find in the above loops, but the error doesn't seem to show | |
4998 * up until around here. I mistook it for a get queued buffers | |
4999 * error in OS X. I don't think there's an error down there. | |
5000 * For now, I'm clearing the error here. | |
5001 */ | |
5002 | |
5003 if((error = alGetError()) != AL_NO_ERROR) | |
5004 { | |
5005 fprintf(stderr, "03Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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|
5006 alGetString(error)); |
0 | 5007 } |
5008 | |
5009 | |
5010 alGetSourcei( | |
5011 ALmixer_Channel_List[i].alsource, | |
5012 AL_SOURCE_STATE, &state | |
5013 ); | |
5014 if((error = alGetError()) != AL_NO_ERROR) | |
5015 { | |
5016 fprintf(stderr, "02Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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|
5017 alGetString(error)); |
0 | 5018 } |
5019 | |
5020 | |
5021 if(AL_STOPPED == state) | |
5022 { | |
5023 /* Playback has ended. | |
5024 * Loop if necessary, or launch callback | |
5025 * and clear channel (or clear channel and | |
5026 * then launch callback?) | |
5027 */ | |
5028 | |
5029 | |
5030 /* Need to check for loops */ | |
5031 if(ALmixer_Channel_List[i].loops != 0) | |
5032 { | |
5033 /* Corner Case: If the buffer has | |
5034 * been modified using Seek, | |
5035 * the loop will start at the seek | |
5036 * position. | |
5037 */ | |
5038 if(ALmixer_Channel_List[i].loops != -1) | |
5039 { | |
5040 ALmixer_Channel_List[i].loops--; | |
5041 } | |
5042 alSourcePlay(ALmixer_Channel_List[i].alsource); | |
5043 if((error = alGetError()) != AL_NO_ERROR) | |
5044 { | |
5045 fprintf(stderr, "50Testing error: %s\n", | |
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5046 alGetString(error)); |
0 | 5047 } |
5048 continue; | |
5049 } | |
5050 /* No loops. End play. */ | |
5051 else | |
5052 { | |
5053 /* Problem: It seems that when mixing | |
5054 * streamed and predecoded sources, | |
5055 * the previous instance lingers, | |
5056 * so we need to force remove | |
5057 * the data from the source. | |
5058 * The sharing problem | |
5059 * occurs when a previous predecoded buffer is played on | |
5060 * a source, and then a streamed source is played later | |
5061 * on that same source. OpenAL isn't consistently | |
5062 * removing the previous buffer so both get played. | |
5063 * (Different dists seem to have different quirks. | |
5064 * The problem might lead to crashes in the worst case.) | |
5065 */ | |
5066 /* Additional problem: There is another | |
5067 * inconsistency among OpenAL distributions. | |
5068 * Both Loki and Creative Windows seem to keep | |
5069 * the buffer queued which requires removing. | |
5070 * But the Creative Macintosh version does | |
5071 * not have any buffer queued after play | |
5072 * and it returns the error: Invalid Enum Value | |
5073 * if I try to unqueue it. | |
5074 * So I'm going to put in a check to see if I | |
5075 * can detect any buffers queued first | |
5076 * and then unqueue them if I can see them. | |
5077 * Additional note: The new CoreAudio based | |
5078 * implementation leaves it's buffer queued | |
5079 * like Loki and Creative Windows. But | |
5080 * considering all the problems I'm having | |
5081 * with the different distributions, this | |
5082 * check seems reasonable. | |
5083 */ | |
5084 ALint buffers_still_queued; | |
5085 if((error = alGetError()) != AL_NO_ERROR) | |
5086 { | |
5087 fprintf(stderr, "01Testing errpr before unqueue because getting stuff, for OS X this is expected: %s\n", | |
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|
5088 alGetString(error)); |
0 | 5089 } |
5090 | |
5091 alGetSourcei( | |
5092 ALmixer_Channel_List[i].alsource, | |
5093 AL_BUFFERS_QUEUED, &buffers_still_queued | |
5094 ); | |
5095 if((error = alGetError()) != AL_NO_ERROR) | |
5096 { | |
5097 fprintf(stderr, "Error with unqueue, for OS X this is expected: %s\n", | |
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|
5098 alGetString(error)); |
0 | 5099 ALmixer_SetError("Failed detecting unqueued predecoded buffer (expected with OS X): %s", |
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|
5100 alGetString(error) ); |
0 | 5101 error_flag--; |
5102 } | |
5103 if(buffers_still_queued > 0) | |
5104 { | |
1 | 5105 |
5106 #if 0 /* This triggers an error in OS X Core Audio. */ | |
5107 alSourceUnqueueBuffers( | |
5108 ALmixer_Channel_List[i].alsource, | |
5109 1, | |
5110 ALmixer_Channel_List[i].almixer_data->buffer | |
5111 ); | |
5112 #else | |
5113 /* fprintf(stderr, "In the Bob Aron section...about to clear source\n"); | |
0 | 5114 PrintQueueStatus(ALmixer_Channel_List[i].alsource); |
1 | 5115 */ |
0 | 5116 /* Rather than force unqueuing the buffer, let's see if |
5117 * setting the buffer to none works (the OpenAL 1.0 | |
5118 * Reference Annotation suggests this should work). | |
5119 */ | |
5120 alSourcei(ALmixer_Channel_List[i].alsource, | |
5121 AL_BUFFER, AL_NONE); | |
5122 /* | |
5123 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
5124 */ | |
1 | 5125 #endif |
0 | 5126 if((error = alGetError()) != AL_NO_ERROR) |
5127 { | |
5128 fprintf(stderr, "Error with unqueue, after alSourceUnqueueBuffers, buffers_still_queued=%d, error is: %s", buffers_still_queued, | |
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diff
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|
5129 alGetString(error)); |
0 | 5130 ALmixer_SetError("Predecoded Unqueue buffer failed: %s", |
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|
5131 alGetString(error) ); |
0 | 5132 error_flag--; |
5133 } | |
5134 | |
5135 } | |
5136 | |
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diff
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|
5137 /* Launch callback */ |
c808684660a7
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6
diff
changeset
|
5138 Invoke_Channel_Done_Callback(i, AL_TRUE); |
c808684660a7
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6
diff
changeset
|
5139 |
0 | 5140 Clean_Channel(i); |
5141 /* Subtract counter */ | |
5142 Is_Playing_global--; | |
5143 | |
5144 | |
5145 /* We're done for this loop. | |
5146 * Go to next channel | |
5147 */ | |
5148 continue; | |
5149 } | |
5150 continue; | |
5151 } | |
5152 } /* End if decoded_all */ | |
5153 /* For streamed */ | |
5154 else | |
5155 { | |
5156 ALint buffers_processed; | |
5157 ALint buffers_still_queued; | |
5158 ALint current_buffer_id; | |
5159 | |
5160 ALuint unqueued_buffer_id; | |
5161 #if 0 | |
5162 /********* Remove this **********/ | |
5163 fprintf(stderr, "For Streamed\n"); | |
5164 | |
5165 alGetSourcei( | |
5166 ALmixer_Channel_List[i].alsource, | |
5167 AL_SOURCE_STATE, &state | |
5168 ); | |
5169 switch(state) { | |
5170 case AL_PLAYING: | |
5171 fprintf(stderr, "Channel '%d' is PLAYING\n", i); | |
5172 break; | |
5173 case AL_PAUSED: | |
5174 fprintf(stderr, "Channel '%d' is PAUSED\n",i); | |
5175 break; | |
5176 case AL_STOPPED: | |
5177 fprintf(stderr, "Channel '%d' is STOPPED\n",i); | |
5178 break; | |
5179 case AL_INITIAL: | |
5180 fprintf(stderr, "Channel '%d' is INITIAL\n",i); | |
5181 break; | |
5182 default: | |
5183 fprintf(stderr, "Channel '%d' is UNKNOWN\n",i); | |
5184 break; | |
5185 } | |
5186 /******** END REMOVE *******/ | |
5187 #endif | |
5188 /* Get the number of buffers still queued */ | |
5189 alGetSourcei( | |
5190 ALmixer_Channel_List[i].alsource, | |
5191 AL_BUFFERS_QUEUED, &buffers_still_queued | |
5192 ); | |
5193 if((error = alGetError()) != AL_NO_ERROR) | |
5194 { | |
5195 fprintf(stderr, "51Testing error: %s\n", | |
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5196 alGetString(error)); |
0 | 5197 } |
5198 /* Get the number of buffers processed | |
5199 * so we know if we need to refill | |
5200 */ | |
2
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5201 /* WARNING: It looks like Snow Leopard some times crashes on this call under x86_64 |
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5202 * typically when I suffer a lot of buffer underruns. |
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5203 */ |
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5204 // fprintf(stderr, "calling AL_BUFFERS_PROCESSED on source:%d", ALmixer_Channel_List[i].alsource); |
0 | 5205 alGetSourcei( |
5206 ALmixer_Channel_List[i].alsource, | |
5207 AL_BUFFERS_PROCESSED, &buffers_processed | |
5208 ); | |
5209 if((error = alGetError()) != AL_NO_ERROR) | |
5210 { | |
5211 fprintf(stderr, "52Testing error: %s\n", | |
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5212 alGetString(error)); |
0 | 5213 } |
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5214 // fprintf(stderr, "finished AL_BUFFERS_PROCESSED, buffers_processed=%d", buffers_processed); |
0 | 5215 |
5216 /* WTF!!! The Nvidia distribution is failing on the alGetSourcei(source, AL_BUFFER, buf_id) call. | |
5217 * I need this call to figure out which buffer OpenAL is currently playing. | |
5218 * It keeps returning an "Invalid Enum" error. | |
5219 * This is totally inane! It's a basic query. | |
5220 * By the spec, this functionality is not explicitly defined so Nvidia refuses to | |
5221 * fix this behavior, even though all other distributions work fine with this. | |
5222 * The only workaround for this is for | |
5223 * a significant rewrite of my code which requires me to | |
5224 * duplicate the OpenAL queued buffers state with my own | |
5225 * code and try to derive what the current playing buffer is by indirect observation of | |
5226 * looking at buffers_processed. But of course this has a ton of downsides since my | |
5227 * queries do not give me perfect timing of what OpenAL is actually doing and | |
5228 * the fact that some of the distributions seem to have buffer queuing problems | |
5229 * with their query results (CoreAudio). This also means a ton of extra code | |
5230 * on my side. The lack of support of a 1 line call has required me to | |
5231 * implement yet another entire state machine. <sigh> | |
5232 */ | |
5233 #if 0 /* This code will not work until possibly OpenAL 1.1 because of Nvidia */ | |
5234 /* Get the id to the current buffer playing */ | |
5235 alGetSourcei( | |
5236 ALmixer_Channel_List[i].alsource, | |
5237 AL_BUFFER, ¤t_buffer_id | |
5238 ); | |
5239 if((error = alGetError()) != AL_NO_ERROR) | |
5240 { | |
5241 fprintf(stderr, "53Testing error: %s\n", | |
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5242 alGetString(error)); |
0 | 5243 } |
5244 | |
5245 /* Before the hard stuff, check to see if the | |
5246 * current queued AL buffer has changed. | |
5247 * If it has, we should launch a data callback if | |
5248 * necessary | |
5249 */ | |
5250 if( ((ALuint)current_buffer_id) != | |
5251 ALmixer_Channel_List[i].almixer_data->current_buffer) | |
5252 { | |
5253 ALmixer_Channel_List[i].almixer_data->current_buffer | |
5254 = (ALuint)current_buffer_id; | |
5255 | |
5256 Invoke_Streamed_Channel_Data_Callback(i, ALmixer_Channel_List[i].almixer_data, current_buffer_id); | |
5257 } | |
5258 #else | |
5259 /* Only do this if "access_data" was requested (i.e. the circular_buffer!=NULL) | |
5260 * And if one of the two are true: | |
5261 * Either buffers_processed > 0 (because the current_buffer might have changed) | |
5262 * or if the current_buffer==0 (because we are in an initial state or recovering from | |
5263 * a buffer underrun) | |
5264 */ | |
5265 if((ALmixer_Channel_List[i].almixer_data->circular_buffer_queue != NULL) | |
5266 && ( | |
5267 (buffers_processed > 0) || (0 == ALmixer_Channel_List[i].almixer_data->current_buffer) | |
5268 ) | |
5269 ) | |
5270 { | |
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5271 ALint k; |
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5272 ALuint queue_ret_flag; |
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5273 ALubyte is_out_of_sync = 0; |
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5274 ALuint my_queue_size = CircularQueueUnsignedInt_Size(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); |
1 | 5275 /* Ugh, I have to deal with signed/unsigned mismatch here. */ |
5276 ALint buffers_unplayed_int = buffers_still_queued - buffers_processed; | |
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5277 ALuint unplayed_buffers; |
1 | 5278 if(buffers_unplayed_int < 0) |
5279 { | |
5280 unplayed_buffers = 0; | |
5281 } | |
5282 else | |
5283 { | |
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5284 unplayed_buffers = (ALuint)buffers_unplayed_int; |
1 | 5285 } |
0 | 5286 /* |
5287 fprintf(stderr, "Queue in processed check, before pop, buffers_processed=%d\n", buffers_processed); | |
5288 CircularQueueUnsignedInt_Print(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); | |
5289 */ | |
5290 /* We can't make any determinations solely based on the number of buffers_processed | |
5291 * because currently, we only unqueue 1 buffer per loop. That means if 2 or more | |
5292 * buffers became processed in one loop, the following loop, we would have | |
5293 * at least that_many-1 buffers_processed (plus possible new processed). | |
5294 * If we tried to just remove 1 buffer from our queue, we would be incorrect | |
5295 * because we would not actually reflect the current playing buffer. | |
5296 * So the solution seems to be to make sure our queue is the same size | |
5297 * as the number of buffers_queued-buffers_processed, and return the head of our queue | |
5298 * as the current playing buffer. | |
5299 */ | |
5300 /* Also, we have a corner case. When we first start playing or if we have | |
5301 * a buffer underrun, we have not done a data callback. | |
5302 * In this case, we need to see if there is any new data in our queue | |
5303 * and if so, launch that data callback. | |
5304 */ | |
5305 /* Warning, this code risks the possibility of no data callback being fired if | |
5306 * the system is really late (or skipped buffers). | |
5307 */ | |
5308 | |
5309 /* First, let's syncronize our queue with the OpenAL queue */ | |
5310 #if 0 | |
5311 fprintf(stderr, "inside, Buffers processed=%d, Buffers queued=%d, my queue=%d\n", | |
5312 buffers_processed, buffers_still_queued, my_queue_size); | |
1 | 5313 #endif |
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5314 is_out_of_sync = 1; |
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5315 for(k=0; k<buffers_processed; k++) |
0 | 5316 { |
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5317 queue_ret_flag = CircularQueueUnsignedInt_PopFront( |
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5318 ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); |
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5319 if(0 == queue_ret_flag) |
0 | 5320 { |
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5321 fprintf(stderr, "53 Error popping queue\n"); |
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5322 } |
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5323 } |
0 | 5324 my_queue_size = CircularQueueUnsignedInt_Size(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); |
5325 /* We have several possibilities we need to handle: | |
5326 * 1) We are in an initial state or underrun and need to do a data callback on the head. | |
5327 * 2) We were out of sync and need to do a new data callback on the new head. | |
5328 * 3) We were not out of sync but just had left over processed buffers which caused us to | |
5329 * fall in this block of code. (Don't do anything.) | |
5330 */ | |
5331 if( (0 == ALmixer_Channel_List[i].almixer_data->current_buffer) || (1 == is_out_of_sync) ) | |
5332 { | |
5333 if(my_queue_size > 0) | |
5334 { | |
5335 current_buffer_id = CircularQueueUnsignedInt_Front( | |
5336 ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); | |
5337 if(0 == current_buffer_id) | |
5338 { | |
5339 fprintf(stderr, "53a Internal Error, current_buffer_id=0 when it shouldn't be 0\n"); | |
5340 } | |
5341 /* | |
5342 else | |
5343 { | |
5344 fprintf(stderr, "Queue in processed check, after pop\n"); | |
5345 CircularQueueUnsignedInt_Print(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); | |
5346 } | |
5347 */ | |
5348 ALmixer_Channel_List[i].almixer_data->current_buffer | |
5349 = (ALuint)current_buffer_id; | |
5350 | |
5351 #if 0 | |
5352 /* Remove me...only for checking...doesn't work on Nvidia */ | |
5353 { | |
5354 ALuint real_id; | |
5355 alGetSourcei( | |
5356 ALmixer_Channel_List[i].alsource, | |
5357 AL_BUFFER, &real_id | |
5358 ); | |
5359 alGetError(); | |
5360 fprintf(stderr, "Callback fired on data buffer=%d, real_id shoud be=%d\n", current_buffer_id, real_id); | |
5361 } | |
5362 #endif | |
5363 Invoke_Streamed_Channel_Data_Callback(i, ALmixer_Channel_List[i].almixer_data, current_buffer_id); | |
5364 } | |
5365 else | |
5366 { | |
1 | 5367 /* |
0 | 5368 fprintf(stderr, "53b, Notice/Warning:, OpenAL queue has been depleted.\n"); |
1 | 5369 PrintQueueStatus(ALmixer_Channel_List[i].alsource); |
5370 */ | |
0 | 5371 /* In this case, we might either be in an underrun or finished with playback */ |
5372 ALmixer_Channel_List[i].almixer_data->current_buffer = 0; | |
5373 } | |
5374 } | |
5375 } | |
5376 #endif | |
5377 | |
5378 | |
5379 | |
5380 /* Just a test - remove | |
5381 if( ALmixer_Channel_List[i].loops > 0) | |
5382 { | |
5383 fprintf(stderr, ">>>>>>>>>>>>>>>Loops = %d\n", | |
5384 ALmixer_Channel_List[i].loops); | |
5385 } | |
5386 */ | |
5387 #if 0 | |
5388 fprintf(stderr, "Buffers processed = %d\n", buffers_processed); | |
5389 fprintf(stderr, "Buffers queued= %d\n", buffers_still_queued); | |
5390 #endif | |
5391 /* We've used up a buffer so we need to unqueue and replace */ | |
5392 /* Okay, it gets more complicated here: | |
5393 * We need to Queue more data | |
5394 * if buffers_processed > 0 or | |
5395 * if num_of_buffers_in_use < NUMBER_OF_QUEUE_BUFFERS | |
5396 * but we don't do this if at EOF, | |
5397 * except when there is looping | |
5398 */ | |
5399 /* For this to work, we must rely on EVERYTHING | |
5400 * else to unset the EOF if there is looping. | |
5401 * Remember, even Play() must do this | |
5402 */ | |
5403 | |
5404 /* If not EOF, then we are still playing. | |
5405 * Inside, we might find num_of_buffers < NUM...QUEUE_BUF.. | |
5406 * or buffers_process > 0 | |
5407 * in which case we queue up. | |
5408 * We also might find no buffers we need to fill, | |
5409 * in which case we just keep going | |
5410 */ | |
5411 if( ! ALmixer_Channel_List[i].almixer_data->eof) | |
5412 { | |
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5413 ALuint bytes_returned; |
0 | 5414 /* We have a priority. We first must assign |
5415 * unused buffers in reserve. If there is nothing | |
5416 * left, then we may unqueue buffers. We can't | |
5417 * do it the other way around because we will | |
5418 * lose the pointer to the unqueued buffer | |
5419 */ | |
5420 if(ALmixer_Channel_List[i].almixer_data->num_buffers_in_use | |
5421 < ALmixer_Channel_List[i].almixer_data->max_queue_buffers) | |
5422 { | |
1 | 5423 #if 0 |
0 | 5424 fprintf(stderr, "Getting more data in NOT_EOF and num_buffers_in_use (%d) < max_queue (%d)\n", |
5425 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use, | |
5426 ALmixer_Channel_List[i].almixer_data->max_queue_buffers); | |
1 | 5427 #endif |
0 | 5428 /* Going to add an unused packet. |
5429 * Grab next packet */ | |
5430 bytes_returned = GetMoreData( | |
5431 ALmixer_Channel_List[i].almixer_data, | |
5432 ALmixer_Channel_List[i].almixer_data->buffer[ | |
5433 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use] | |
5434 ); | |
5435 } | |
5436 /* For processed > 0 */ | |
5437 else if(buffers_processed > 0) | |
5438 { | |
5439 /* Unqueue only 1 buffer for now. | |
5440 * If there are more than one, | |
5441 * let the next Update pass deal with it | |
5442 * so we don't stall the program for too long. | |
5443 */ | |
5444 #if 0 | |
5445 fprintf(stderr, "About to Unqueue, Buffers processed = %d\n", buffers_processed); | |
5446 fprintf(stderr, "Buffers queued= %d\n", buffers_still_queued); | |
5447 fprintf(stderr, "Unqueuing a buffer\n"); | |
5448 #endif | |
5449 alSourceUnqueueBuffers( | |
5450 ALmixer_Channel_List[i].alsource, | |
5451 1, &unqueued_buffer_id | |
5452 ); | |
5453 if((error = alGetError()) != AL_NO_ERROR) | |
5454 { | |
5455 fprintf(stderr, "Error with unqueue: %s", | |
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5456 alGetString(error)); |
0 | 5457 ALmixer_SetError("Unqueue buffer failed: %s", |
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5458 alGetString(error) ); |
0 | 5459 error_flag--; |
5460 } | |
5461 /* | |
5462 fprintf(stderr, "Right after unqueue..."); | |
5463 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
5464 fprintf(stderr, "Getting more data for NOT_EOF, max_buffers filled\n"); | |
5465 */ | |
5466 /* Grab unqueued packet */ | |
5467 bytes_returned = GetMoreData( | |
5468 ALmixer_Channel_List[i].almixer_data, | |
5469 unqueued_buffer_id); | |
5470 } | |
5471 /* We are still streaming, but currently | |
5472 * don't need to fill any buffers */ | |
5473 else | |
5474 { | |
5475 /* Might want to check state */ | |
5476 /* In case the playback stopped, | |
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5477 * we need to resume |
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5478 * a.k.a. buffer underrun |
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5479 */ |
1 | 5480 #if 1 |
5481 /* Try not refetching the state here because I'm getting a duplicate | |
5482 buffer playback (hiccup) */ | |
0 | 5483 alGetSourcei( |
5484 ALmixer_Channel_List[i].alsource, | |
5485 AL_SOURCE_STATE, &state | |
5486 ); | |
1 | 5487 if((error = alGetError()) != AL_NO_ERROR) |
5488 { | |
5489 fprintf(stderr, "54bTesting error: %s\n", | |
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5490 alGetString(error)); |
1 | 5491 } |
5492 /* Get the number of buffers processed | |
5493 */ | |
5494 alGetSourcei( | |
5495 ALmixer_Channel_List[i].alsource, | |
5496 AL_BUFFERS_PROCESSED, | |
5497 &buffers_processed | |
5498 ); | |
5499 if((error = alGetError()) != AL_NO_ERROR) | |
5500 { | |
5501 fprintf(stderr, "54cError, Can't get buffers_processed: %s\n", | |
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5502 alGetString(error)); |
1 | 5503 } |
5504 #endif | |
0 | 5505 if(AL_STOPPED == state) |
5506 { | |
5507 /* Resuming in not eof, but nothing to buffer */ | |
1 | 5508 |
5509 /* Okay, here's another lately discovered problem: | |
5510 * I can't find it in the spec, but for at least some of the | |
5511 * implementations, if I call play on a stopped source that | |
5512 * has processed buffers, all those buffers get marked as unprocessed | |
5513 * on alSourcePlay. So if I had a queue of 25 with 24 of the buffers | |
5514 * processed, on resume, the earlier 24 buffers will get replayed, | |
5515 * causing a "hiccup" like sound in the playback. | |
5516 * To avoid this, I must unqueue all processed buffers before | |
5517 * calling play. But to complicate things, I need to worry about resyncing | |
5518 * the circular queue with this since I designed this thing | |
5519 * with some correlation between the two. However, I might | |
5520 * have already handled this, so I will try writing this code without | |
5521 * syncing for now. | |
5522 * There is currently an assumption that a buffer | |
5523 * was queued above so I actually have something | |
5524 * to play. | |
5525 */ | |
5526 ALint temp_count; | |
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5527 #if 0 |
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5528 fprintf(stderr, "STOPPED1, need to clear processed=%d, status is:\n", buffers_processed); |
1 | 5529 PrintQueueStatus(ALmixer_Channel_List[i].alsource); |
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5530 #endif |
1 | 5531 for(temp_count=0; temp_count<buffers_processed; temp_count++) |
5532 { | |
5533 alSourceUnqueueBuffers( | |
5534 ALmixer_Channel_List[i].alsource, | |
5535 1, &unqueued_buffer_id | |
5536 ); | |
5537 if((error = alGetError()) != AL_NO_ERROR) | |
5538 { | |
5539 fprintf(stderr, "55aTesting error: %s\n", | |
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5540 alGetString(error)); |
1 | 5541 error_flag--; |
5542 } | |
5543 } | |
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5544 #if 0 |
1 | 5545 fprintf(stderr, "After unqueue clear...:\n"); |
5546 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
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5547 #endif |
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5548 /* My assertion: We are STOPPED but not EOF. |
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5549 * This means we have a buffer underrun. |
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5550 * We just cleared out the unqueued buffers. |
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5551 * So we need to reset the mixer_data to reflect we have |
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5552 * no buffers in queue. |
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5553 * We need to GetMoreData and then queue up the data. |
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5554 * Then we need to resume playing. |
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5555 */ |
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5556 #if 0 |
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5557 int buffers_queued; |
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5558 alGetSourcei( |
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5559 ALmixer_Channel_List[i].alsource, |
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5560 AL_BUFFERS_QUEUED, |
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5561 &buffers_queued |
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5562 ); |
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5563 |
1 | 5564 if((error = alGetError()) != AL_NO_ERROR) |
5565 { | |
2
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5566 fprintf(stderr, "Error in PrintQueueStatus, Can't get buffers_queued: %s\n", |
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5567 alGetString(error)); |
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5568 } |
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5569 assert(buffers_queued == 0); |
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5570 fprintf(stderr, "buffer underrun: buffers_queued:%d\n", buffers_queued); |
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5571 #endif |
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5572 |
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5573 /* Reset the number of buffers in use to 0 */ |
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5574 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use = 0; |
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5575 |
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5576 /* Get more data and put it in the first buffer */ |
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5577 bytes_returned = GetMoreData( |
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5578 ALmixer_Channel_List[i].almixer_data, |
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5579 ALmixer_Channel_List[i].almixer_data->buffer[0] |
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5580 ); |
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5581 /* NOTE: We might want to look for EOF and handle it here. |
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5582 * Currently, I just let the next loop handle it which seems to be working. |
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5583 */ |
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5584 if(bytes_returned > 0) |
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5585 { |
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5586 /* Queue up the new data */ |
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5587 alSourceQueueBuffers( |
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5588 ALmixer_Channel_List[i].alsource, |
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5589 1, |
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5590 &ALmixer_Channel_List[i].almixer_data->buffer[0] |
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5591 ); |
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5592 if((error = alGetError()) != AL_NO_ERROR) |
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5593 { |
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5594 fprintf(stderr, "56e alSourceQueueBuffers error: %s\n", |
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5595 alGetString(error)); |
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5596 } |
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5597 /* Increment the number of buffers in use */ |
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5598 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use++; |
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5599 |
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5600 |
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5601 /* We need to empty and update the circular buffer queue if it is in use */ |
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5602 if(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue != NULL) |
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5603 { |
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5604 ALuint queue_ret_flag; |
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5605 CircularQueueUnsignedInt_Clear(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); |
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5606 queue_ret_flag = CircularQueueUnsignedInt_PushBack( |
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5607 ALmixer_Channel_List[i].almixer_data->circular_buffer_queue, |
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5608 ALmixer_Channel_List[i].almixer_data->buffer[0] |
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5609 ); |
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5610 if(0 == queue_ret_flag) |
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5611 { |
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5612 fprintf(stderr, "56fSerious internal error: CircularQueue could not push into queue.\n"); |
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5613 ALmixer_SetError("Serious internal error: CircularQueue failed to push into queue"); |
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5614 } |
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5615 } |
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5616 |
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5617 |
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5618 |
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5619 |
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5620 /* Resume playback from underrun */ |
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5621 alSourcePlay(ALmixer_Channel_List[i].alsource); |
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5622 if((error = alGetError()) != AL_NO_ERROR) |
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5623 { |
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5624 fprintf(stderr, "55Tbesting error: %s\n", |
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5625 alGetString(error)); |
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5626 } |
1 | 5627 } |
2
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5628 |
0 | 5629 } |
5630 /* Let's escape to the next loop. | |
5631 * All code below this point is for queuing up | |
5632 */ | |
5633 /* | |
1 | 5634 fprintf(stderr, "Entry: Nothing to do...continue\n\n"); |
5635 */ | |
0 | 5636 continue; |
5637 } | |
5638 /* We now know we have to fill an available | |
5639 * buffer. | |
5640 */ | |
5641 | |
5642 /* In the previous branch, we just grabbed more data. | |
5643 * Let's check it to make sure it's okay, | |
5644 * and then queue it up | |
5645 */ | |
2
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5646 /* This check doesn't work anymore because it is now ALuint */ |
0 | 5647 #if 0 |
5648 if(-1 == bytes_returned) | |
5649 { | |
5650 /* Problem occurred...not sure what to do */ | |
5651 /* Go to next loop? */ | |
5652 error_flag--; | |
5653 /* Set the eof flag to force a quit so | |
5654 * we don't get stuck in an infinite loop | |
5655 */ | |
5656 ALmixer_Channel_List[i].almixer_data->eof = 1; | |
5657 continue; | |
5658 } | |
5659 #endif | |
5660 /* This is a special case where we've run | |
5661 * out of data. We should check for loops | |
5662 * and get more data. If there is no loop, | |
5663 * then do nothing and wait for future | |
5664 * update passes to handle the EOF. | |
5665 * The advantage of handling the loop here | |
5666 * instead of waiting for play to stop is | |
5667 * that we should be able to keep the buffer | |
5668 * filled. | |
5669 */ | |
5670 #if 0 | |
5671 else if(0 == bytes_returned) | |
5672 #endif | |
5673 if(0 == bytes_returned) | |
5674 { | |
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5675 /* |
0 | 5676 fprintf(stderr, "We got 0 bytes from reading. Checking for loops\n"); |
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5677 */ |
0 | 5678 /* Check for loops */ |
5679 if( ALmixer_Channel_List[i].loops != 0 ) | |
5680 { | |
5681 /* We have to loop, so rewind | |
5682 * and fetch more data | |
5683 */ | |
6
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5684 /* |
0 | 5685 fprintf(stderr, "Rewinding data\n"); |
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5686 */ |
0 | 5687 if(0 == Sound_Rewind( |
5688 ALmixer_Channel_List[i].almixer_data->sample)) | |
5689 { | |
5690 fprintf(stderr, "Rewinding failed\n"); | |
5691 ALmixer_SetError( Sound_GetError() ); | |
5692 ALmixer_Channel_List[i].loops = 0; | |
5693 error_flag--; | |
5694 /* We'll continue on because we do have some valid data */ | |
5695 continue; | |
5696 } | |
5697 /* Remember to reset the data->eof flag */ | |
5698 ALmixer_Channel_List[i].almixer_data->eof = 0; | |
5699 if(ALmixer_Channel_List[i].loops > 0) | |
5700 { | |
5701 ALmixer_Channel_List[i].loops--; | |
5702 } | |
5703 /* Try grabbing another packet now. | |
5704 * Since we may have already unqueued a | |
5705 * buffer, we don't want to lose it. | |
5706 */ | |
5707 if(ALmixer_Channel_List[i].almixer_data->num_buffers_in_use | |
5708 < ALmixer_Channel_List[i].almixer_data->max_queue_buffers) | |
5709 { | |
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5710 /* |
0 | 5711 fprintf(stderr, "We got %d bytes from reading loop. Filling unused packet\n", bytes_returned); |
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5712 */ |
0 | 5713 /* Grab next packet */ |
5714 bytes_returned = GetMoreData( | |
5715 ALmixer_Channel_List[i].almixer_data, | |
5716 ALmixer_Channel_List[i].almixer_data->buffer[ | |
5717 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use] | |
5718 ); | |
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5719 /* |
0 | 5720 fprintf(stderr, "We reread %d bytes into unused packet\n", bytes_returned); |
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5721 */ |
0 | 5722 } |
5723 /* Refilling unqueued packet */ | |
5724 else | |
5725 { | |
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5726 /* |
0 | 5727 fprintf(stderr, "We got %d bytes from reading loop. Filling unqueued packet\n", bytes_returned); |
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5728 */ |
0 | 5729 /* Grab next packet */ |
5730 bytes_returned = GetMoreData( | |
5731 ALmixer_Channel_List[i].almixer_data, | |
5732 unqueued_buffer_id); | |
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5733 /* |
0 | 5734 fprintf(stderr, "We reread %d bytes into unqueued packet\n", bytes_returned); |
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5735 */ |
0 | 5736 } |
5737 /* Another error check */ | |
5738 /* | |
5739 if(bytes_returned <= 0) | |
5740 */ | |
5741 if(0 == bytes_returned) | |
5742 { | |
5743 fprintf(stderr, "??????????ERROR\n"); | |
5744 ALmixer_SetError("Could not loop because after rewind, no data could be retrieved"); | |
5745 /* Problem occurred...not sure what to do */ | |
5746 /* Go to next loop? */ | |
5747 error_flag--; | |
5748 /* Set the eof flag to force a quit so | |
5749 * we don't get stuck in an infinite loop | |
5750 */ | |
5751 ALmixer_Channel_List[i].almixer_data->eof = 1; | |
5752 continue; | |
5753 } | |
5754 /* We made it to the end. We still need | |
5755 * to BufferData, so let this branch | |
5756 * fall into the next piece of | |
5757 * code below which will handle that | |
5758 */ | |
5759 | |
5760 | |
5761 } /* END loop check */ | |
5762 else | |
5763 { | |
5764 /* No more loops to do. | |
5765 * EOF flag should be set. | |
5766 * Just go to next loop and | |
5767 * let things be handled correctly | |
5768 * in future update calls | |
5769 */ | |
1 | 5770 /* |
0 | 5771 fprintf(stderr, "SHOULD BE EOF\n"); |
5772 | |
5773 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
1 | 5774 */ |
0 | 5775 continue; |
5776 } | |
5777 } /* END if bytes_returned == 0 */ | |
5778 /********* Possible trouble point. I might be queueing empty buffers on the mac. | |
5779 * This check doesn't say if the buffer is valid. Only the EOF assumption is a clue at this point | |
5780 */ | |
5781 /* Fall here */ | |
5782 /* Everything is normal. We aren't | |
5783 * at an EOF, but need to simply | |
5784 * queue more data. The data is already checked for good, | |
5785 * so queue it up */ | |
5786 if(ALmixer_Channel_List[i].almixer_data->num_buffers_in_use | |
5787 < ALmixer_Channel_List[i].almixer_data->max_queue_buffers) | |
5788 { | |
5789 /* Keep count of how many buffers we have | |
5790 * to queue so we can return the value | |
5791 */ | |
5792 retval++; | |
1 | 5793 /* |
0 | 5794 fprintf(stderr, "NOT_EOF???, about to Queue more data for num_buffers (%d) < max_queue (%d)\n", |
5795 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use, | |
5796 ALmixer_Channel_List[i].almixer_data->max_queue_buffers); | |
1 | 5797 */ |
0 | 5798 alSourceQueueBuffers( |
5799 ALmixer_Channel_List[i].alsource, | |
5800 1, | |
5801 &ALmixer_Channel_List[i].almixer_data->buffer[ | |
5802 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use] | |
5803 ); | |
5804 if((error = alGetError()) != AL_NO_ERROR) | |
5805 { | |
5806 fprintf(stderr, "56Testing error: %s\n", | |
2
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1
diff
changeset
|
5807 alGetString(error)); |
0 | 5808 } |
5809 /* This is part of the hideous Nvidia workaround. In order to figure out | |
5810 * which buffer to show during callbacks (for things like | |
5811 * o-scopes), I must keep a copy of the buffers that are queued in my own | |
5812 * data structure. This code will be called only if | |
5813 * "access_data" was set, indicated by whether the queue is NULL. | |
5814 */ | |
5815 if(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue != NULL) | |
5816 { | |
2
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diff
changeset
|
5817 ALuint queue_ret_flag; |
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diff
changeset
|
5818 // fprintf(stderr, "56d: CircularQueue_PushBack.\n"); |
0 | 5819 queue_ret_flag = CircularQueueUnsignedInt_PushBack( |
5820 ALmixer_Channel_List[i].almixer_data->circular_buffer_queue, | |
5821 ALmixer_Channel_List[i].almixer_data->buffer[ALmixer_Channel_List[i].almixer_data->num_buffers_in_use] | |
5822 ); | |
5823 if(0 == queue_ret_flag) | |
5824 { | |
5825 fprintf(stderr, "56aSerious internal error: CircularQueue could not push into queue.\n"); | |
5826 ALmixer_SetError("Serious internal error: CircularQueue failed to push into queue"); | |
5827 } | |
5828 /* | |
5829 else | |
5830 { | |
5831 CircularQueueUnsignedInt_Print(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); | |
5832 } | |
5833 */ | |
5834 } | |
5835 } | |
5836 /* for processed > 0 */ | |
5837 else | |
5838 { | |
5839 /* Keep count of how many buffers we have | |
5840 * to queue so we can return the value | |
5841 */ | |
5842 retval++; | |
5843 /* | |
5844 fprintf(stderr, "NOT_EOF, about to Queue more data for filled max_queue (%d)\n", | |
5845 ALmixer_Channel_List[i].almixer_data->max_queue_buffers); | |
5846 */ | |
5847 alSourceQueueBuffers( | |
5848 ALmixer_Channel_List[i].alsource, | |
5849 1, &unqueued_buffer_id); | |
5850 if((error = alGetError()) != AL_NO_ERROR) | |
5851 { | |
5852 ALmixer_SetError("Could not QueueBuffer: %s", | |
2
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diff
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|
5853 alGetString(error) ); |
0 | 5854 error_flag--; |
5855 continue; | |
5856 } | |
5857 /* This is part of the hideous Nvidia workaround. In order to figure out | |
5858 * which buffer to show during callbacks (for things like | |
5859 * o-scopes), I must keep a copy of the buffers that are queued in my own | |
5860 * data structure. This code will be called only if | |
5861 * "access_data" was set, indicated by whether the queue is NULL. | |
5862 */ | |
5863 if(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue != NULL) | |
5864 { | |
2
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diff
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|
5865 ALuint queue_ret_flag; |
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Overhaul prep for first public release.
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diff
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|
5866 // fprintf(stderr, "56e: CircularQueue_PushBack.\n"); |
0 | 5867 queue_ret_flag = CircularQueueUnsignedInt_PushBack( |
5868 ALmixer_Channel_List[i].almixer_data->circular_buffer_queue, | |
5869 unqueued_buffer_id | |
5870 ); | |
5871 if(0 == queue_ret_flag) | |
5872 { | |
5873 fprintf(stderr, "56bSerious internal error: CircularQueue could not push into queue.\n"); | |
5874 ALmixer_SetError("Serious internal error: CircularQueue failed to push into queue"); | |
5875 } | |
2
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Overhaul prep for first public release.
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diff
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|
5876 #if 0 |
0 | 5877 else |
5878 { | |
5879 CircularQueueUnsignedInt_Print(ALmixer_Channel_List[i].almixer_data->circular_buffer_queue); | |
5880 } | |
2
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diff
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|
5881 #endif |
0 | 5882 } |
5883 } | |
5884 /* If we used an available buffer queue, | |
5885 * then we need to update the number of them in use | |
5886 */ | |
5887 if(ALmixer_Channel_List[i].almixer_data->num_buffers_in_use | |
5888 < ALmixer_Channel_List[i].almixer_data->max_queue_buffers) | |
5889 { | |
5890 /* Increment the number of buffers in use */ | |
5891 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use++; | |
5892 } | |
5893 /* Might want to check state */ | |
5894 /* In case the playback stopped, | |
5895 * we need to resume */ | |
1 | 5896 #if 1 |
5897 /* Try not refetching the state here because I'm getting a duplicate | |
5898 buffer playback (hiccup) */ | |
0 | 5899 alGetSourcei( |
5900 ALmixer_Channel_List[i].alsource, | |
5901 AL_SOURCE_STATE, &state | |
5902 ); | |
1 | 5903 if((error = alGetError()) != AL_NO_ERROR) |
5904 { | |
5905 fprintf(stderr, "57bTesting error: %s\n", | |
2
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diff
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|
5906 alGetString(error)); |
1 | 5907 } |
5908 /* Get the number of buffers processed | |
5909 */ | |
5910 alGetSourcei( | |
5911 ALmixer_Channel_List[i].alsource, | |
5912 AL_BUFFERS_PROCESSED, | |
5913 &buffers_processed | |
5914 ); | |
5915 if((error = alGetError()) != AL_NO_ERROR) | |
5916 { | |
5917 fprintf(stderr, "57cError, Can't get buffers_processed: %s\n", | |
2
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|
5918 alGetString(error)); |
1 | 5919 } |
5920 #endif | |
0 | 5921 if(AL_STOPPED == state) |
5922 { | |
1 | 5923 /* |
0 | 5924 fprintf(stderr, "Resuming in not eof\n"); |
1 | 5925 */ |
5926 /* Okay, here's another lately discovered problem: | |
5927 * I can't find it in the spec, but for at least some of the | |
5928 * implementations, if I call play on a stopped source that | |
5929 * has processed buffers, all those buffers get marked as unprocessed | |
5930 * on alSourcePlay. So if I had a queue of 25 with 24 of the buffers | |
5931 * processed, on resume, the earlier 24 buffers will get replayed, | |
5932 * causing a "hiccup" like sound in the playback. | |
5933 * To avoid this, I must unqueue all processed buffers before | |
5934 * calling play. But to complicate things, I need to worry about resyncing | |
5935 * the circular queue with this since I designed this thing | |
5936 * with some correlation between the two. However, I might | |
5937 * have already handled this, so I will try writing this code without | |
5938 * syncing for now. | |
5939 * There is currently an assumption that a buffer | |
5940 * was queued above so I actually have something | |
5941 * to play. | |
5942 */ | |
5943 ALint temp_count; | |
5944 /* | |
5945 fprintf(stderr, "STOPPED2, need to clear processed, status is:\n"); | |
5946 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
5947 */ | |
5948 | |
5949 for(temp_count=0; temp_count<buffers_processed; temp_count++) | |
5950 { | |
5951 alSourceUnqueueBuffers( | |
5952 ALmixer_Channel_List[i].alsource, | |
5953 1, &unqueued_buffer_id | |
5954 ); | |
5955 if((error = alGetError()) != AL_NO_ERROR) | |
5956 { | |
5957 fprintf(stderr, "58aTesting error: %s\n", | |
2
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diff
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|
5958 alGetString(error)); |
1 | 5959 error_flag--; |
5960 } | |
5961 } | |
5962 /* | |
5963 fprintf(stderr, "After unqueue clear...:\n"); | |
5964 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
5965 */ | |
5966 | |
5967 alSourcePlay(ALmixer_Channel_List[i].alsource); | |
5968 if((error = alGetError()) != AL_NO_ERROR) | |
5969 { | |
5970 fprintf(stderr, "55Tbesting 8rror: %s\n", | |
2
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diff
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|
5971 alGetString(error)); |
1 | 5972 } |
0 | 5973 } |
5974 continue; | |
5975 } /* END if( ! eof) */ | |
5976 /* We have hit EOF in the SDL_Sound sample and there | |
5977 * are no more loops. However, there may still be | |
5978 * buffers in the OpenAL queue which still need to | |
5979 * be played out. The following body of code will | |
5980 * determine if play is still happening or | |
5981 * initiate the stop/cleanup sequenece. | |
5982 */ | |
5983 else | |
5984 { | |
5985 /* Let's continue to remove the used up | |
5986 * buffers as they come in. */ | |
5987 if(buffers_processed > 0) | |
5988 { | |
2
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diff
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|
5989 ALint temp_count; |
0 | 5990 /* Do as a for-loop because I don't want |
5991 * to have to create an array for the | |
5992 * unqueued_buffer_id's | |
5993 */ | |
5994 for(temp_count=0; temp_count<buffers_processed; temp_count++) | |
5995 { | |
6
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Disabled some of the debugging printfs
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3
diff
changeset
|
5996 /* |
0 | 5997 fprintf(stderr, "unqueuing remainder, %d\n", temp_count); |
6
4b1048af7e55
Disabled some of the debugging printfs
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3
diff
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|
5998 */ |
0 | 5999 alSourceUnqueueBuffers( |
6000 ALmixer_Channel_List[i].alsource, | |
6001 1, &unqueued_buffer_id | |
6002 ); | |
6003 if((error = alGetError()) != AL_NO_ERROR) | |
6004 { | |
6005 fprintf(stderr, "59Testing error: %s\n", | |
2
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diff
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|
6006 alGetString(error)); |
0 | 6007 } |
6008 } | |
6
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Disabled some of the debugging printfs
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3
diff
changeset
|
6009 /* |
0 | 6010 fprintf(stderr, "done unqueuing remainder for this loop, %d\n", temp_count); |
6
4b1048af7e55
Disabled some of the debugging printfs
Eric Wing <ewing . public |-at-| gmail . com>
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diff
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|
6011 */ |
4b1048af7e55
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diff
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|
6012 |
0 | 6013 /* Need to update counts since we removed everything. |
6014 * If we don't update the counts here, we end up in the | |
6015 * "Shouldn't be here section, but maybe it's okay due to race conditions" | |
6016 */ | |
6017 alGetSourcei( | |
6018 ALmixer_Channel_List[i].alsource, | |
6019 AL_BUFFERS_QUEUED, &buffers_still_queued | |
6020 ); | |
6021 if((error = alGetError()) != AL_NO_ERROR) | |
6022 { | |
6023 fprintf(stderr, "5100Testing error: %s\n", | |
2
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diff
changeset
|
6024 alGetString(error)); |
0 | 6025 } |
6026 /* Get the number of buffers processed | |
6027 * so we know if we need to refill | |
6028 */ | |
6029 alGetSourcei( | |
6030 ALmixer_Channel_List[i].alsource, | |
6031 AL_BUFFERS_PROCESSED, &buffers_processed | |
6032 ); | |
6033 if((error = alGetError()) != AL_NO_ERROR) | |
6034 { | |
6035 fprintf(stderr, "5200Testing error: %s\n", | |
2
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diff
changeset
|
6036 alGetString(error)); |
0 | 6037 } |
6038 } | |
6039 | |
6040 | |
6041 /* Else if buffers_processed == 0 | |
6042 * and buffers_still_queued == 0. | |
6043 * then we check to see if the source | |
6044 * is still playing. Quit if stopped | |
6045 * We shouldn't need to worry about | |
6046 * looping because that should have | |
6047 * been handled above. | |
6048 */ | |
6049 if(0 == buffers_still_queued) | |
6050 { | |
6051 /* Make sure playback has stopped before | |
6052 * we shutdown. | |
6053 */ | |
6054 alGetSourcei( | |
6055 ALmixer_Channel_List[i].alsource, | |
6056 AL_SOURCE_STATE, &state | |
6057 ); | |
6058 if((error = alGetError()) != AL_NO_ERROR) | |
6059 { | |
6060 fprintf(stderr, "60Testing error: %s\n", | |
2
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parents:
1
diff
changeset
|
6061 alGetString(error)); |
0 | 6062 } |
6063 if(AL_STOPPED == state) | |
6064 { | |
6065 ALmixer_Channel_List[i].almixer_data->num_buffers_in_use = 0; | |
6066 /* Playback has ended. | |
6067 * Loop if necessary, or launch callback | |
6068 * and clear channel (or clear channel and | |
6069 * then launch callback?) | |
10
c808684660a7
Bug fix: Moved Invoke_Callback before CleanChannel because I was trying to get the ALmixer_Data pointer, but it was cleared:
Eric Wing <ewing . public |-at-| gmail . com>
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6
diff
changeset
|
6070 * Update: Need to do callback first because I reference the mixer_data and source |
0 | 6071 */ |
10
c808684660a7
Bug fix: Moved Invoke_Callback before CleanChannel because I was trying to get the ALmixer_Data pointer, but it was cleared:
Eric Wing <ewing . public |-at-| gmail . com>
parents:
6
diff
changeset
|
6072 |
c808684660a7
Bug fix: Moved Invoke_Callback before CleanChannel because I was trying to get the ALmixer_Data pointer, but it was cleared:
Eric Wing <ewing . public |-at-| gmail . com>
parents:
6
diff
changeset
|
6073 /* Launch callback */ |
c808684660a7
Bug fix: Moved Invoke_Callback before CleanChannel because I was trying to get the ALmixer_Data pointer, but it was cleared:
Eric Wing <ewing . public |-at-| gmail . com>
parents:
6
diff
changeset
|
6074 Invoke_Channel_Done_Callback(i, AL_TRUE); |
c808684660a7
Bug fix: Moved Invoke_Callback before CleanChannel because I was trying to get the ALmixer_Data pointer, but it was cleared:
Eric Wing <ewing . public |-at-| gmail . com>
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6
diff
changeset
|
6075 |
0 | 6076 Clean_Channel(i); |
6077 /* Subtract counter */ | |
6078 Is_Playing_global--; | |
6079 | |
6080 | |
6081 /* We're done for this loop. | |
6082 * Go to next channel | |
6083 */ | |
6084 continue; | |
6085 } | |
6086 } /* End end-playback */ | |
6087 else | |
6088 { | |
6089 /* Need to run out buffer */ | |
6090 #if 1 | |
6091 /* Might want to check state */ | |
6092 /* In case the playback stopped, | |
6093 * we need to resume */ | |
6094 alGetSourcei( | |
6095 ALmixer_Channel_List[i].alsource, | |
6096 AL_SOURCE_STATE, &state | |
6097 ); | |
6098 if((error = alGetError()) != AL_NO_ERROR) | |
6099 { | |
6100 fprintf(stderr, "61Testing error: %s\n", | |
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diff
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|
6101 alGetString(error)); |
0 | 6102 } |
6103 if(AL_STOPPED == state) | |
6104 { | |
6
4b1048af7e55
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3
diff
changeset
|
6105 /* |
0 | 6106 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); |
6
4b1048af7e55
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3
diff
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|
6107 */ |
1 | 6108 /* |
0 | 6109 PrintQueueStatus(ALmixer_Channel_List[i].alsource); |
1 | 6110 */ |
0 | 6111 /* Rather than force unqueuing the buffer, let's see if |
6112 * setting the buffer to none works (the OpenAL 1.0 | |
6113 * Reference Annotation suggests this should work). | |
6114 */ | |
6115 alSourcei(ALmixer_Channel_List[i].alsource, | |
6116 AL_BUFFER, AL_NONE); | |
6117 /* | |
6118 PrintQueueStatus(ALmixer_Channel_List[i].alsource); | |
6119 */ | |
6120 /* This doesn't work because in some cases, I think | |
6121 * it causes the sound to be replayed | |
6122 */ | |
6123 /* | |
6124 fprintf(stderr, "Resuming in eof (trying to run out buffers\n"); | |
6125 alSourcePlay(ALmixer_Channel_List[i].alsource); | |
6126 */ | |
6127 } | |
6128 #endif | |
6129 } /* End trap section */ | |
6130 } /* End POST-EOF use-up buffer section */ | |
6131 } /* END Streamed section */ | |
6132 } /* END channel in use */ | |
6133 } /* END for-loop for each channel */ | |
6134 | |
6135 #ifdef ENABLE_ALMIXER_ALC_SYNC | |
6136 alcProcessContext(alcGetCurrentContext()); | |
6137 if((error = alGetError()) != AL_NO_ERROR) | |
6138 { | |
6139 fprintf(stderr, "62Testing error: %s\n", | |
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|
6140 alGetString(error)); |
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Overhaul prep for first public release.
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diff
changeset
|
6141 } |
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diff
changeset
|
6142 #endif |
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diff
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|
6143 |
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diff
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|
6144 #ifdef ENABLE_ALMIXER_THREADS |
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diff
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|
6145 SDL_UnlockMutex(s_simpleLock); |
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Overhaul prep for first public release.
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diff
changeset
|
6146 #endif |
0 | 6147 /* Return the number of errors */ |
6148 if(error_flag < 0) | |
6149 { | |
6150 return error_flag; | |
6151 } | |
6152 /* Return the number of buffers that were queued */ | |
6153 return retval; | |
6154 } | |
6155 | |
6156 #ifdef ENABLE_PARANOID_SIGNEDNESS_CHECK | |
6157 /* This is only here so we can call SDL_OpenAudio() */ | |
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|
6158 static void my_dummy_audio_callback(void* userdata, ALbyte* stream, int len) |
0 | 6159 { |
6160 } | |
6161 #endif | |
6162 | |
6163 | |
6164 | |
6165 | |
6166 #ifdef ENABLE_ALMIXER_THREADS | |
6167 /* We might need threads. We | |
6168 * must constantly poll OpenAL to find out | |
6169 * if sound is being streamed, if play has | |
6170 * ended, etc. Without threads, this must | |
6171 * be explicitly done by the user. | |
6172 * We could try to do it for them if we | |
6173 * finish the threads. | |
6174 */ | |
6175 | |
6176 static int Stream_Data_Thread_Callback(void* data) | |
6177 { | |
2
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diff
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|
6178 ALint retval; |
0 | 6179 |
6180 while(ALmixer_Initialized) | |
6181 { | |
6182 retval = Update_ALmixer(data); | |
6183 /* 0 means that nothing needed updating and | |
6184 * the function returned quickly | |
6185 */ | |
6186 if(0 == retval) | |
6187 { | |
6188 /* Let's be nice and make the thread sleep since | |
6189 * little work was done in update | |
6190 */ | |
6191 /* Make sure times are multiples of 10 | |
6192 * for optimal performance and accuracy in Linux | |
6193 */ | |
2
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diff
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|
6194 ALmixer_Delay(10); |
0 | 6195 } |
6196 else | |
6197 { | |
6198 /* should I also be sleeping/yielding here? */ | |
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6199 ALmixer_Delay(0); |
0 | 6200 } |
6201 } | |
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6202 /* |
0 | 6203 fprintf(stderr, "Thread is closing\n"); |
6
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6204 */ |
0 | 6205 return 0; |
6206 } | |
6207 #endif /* End of ENABLE_ALMIXER_THREADS */ | |
6208 | |
6209 | |
2
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6210 /* SDL/SDL_mixer returns -1 on error and 0 on success. |
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6211 * I actually prefer false/true conventions (SDL_Sound/OpenAL/GL) |
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6212 * so SDL_mixer porting people beware. |
0 | 6213 * Warning: SDL_QuitSubSystem(SDL_INIT_AUDIO) is called which |
6214 * means the SDL audio system will be disabled. It will not | |
6215 * be restored (in case SDL is not actually being used) so | |
6216 * the user will need to restart it if they need it after | |
6217 * OpenAL shuts down. | |
6218 */ | |
22
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6219 ALboolean ALmixer_Init(ALuint frequency, ALuint num_sources, ALuint refresh) |
0 | 6220 { |
6221 ALCdevice* dev; | |
6222 ALCcontext* context; | |
2
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6223 ALint i; |
0 | 6224 ALenum error; |
6225 ALuint* source; | |
6226 | |
6227 #ifdef USING_LOKI_AL_DIST | |
6228 /* The Loki dist requires that I set both the | |
6229 * device and context frequency values separately | |
6230 */ | |
6231 /* Hope this won't overflow */ | |
6232 char device_string[256]; | |
6233 #endif | |
6234 | |
6235 /* (Venting frustration) Damn it! Nobody bothered | |
6236 * documenting how you're supposed to use an attribute | |
6237 * list. In fact, the not even the Loki test program | |
6238 * writers seem to know because they use it inconsistently. | |
6239 * For example, how do you terminate that attribute list? | |
6240 * The Loki test code does it 3 different ways. They | |
6241 * set the last value to 0, or they set it to ALC_INVALID, | |
6242 * or they set two final values: ALC_INVALID, 0 | |
6243 * In Loki, 0 and ALC_INVALID happen to be the same, | |
6244 * but with Creative Labs ALC_INVALID is -1. | |
6245 * So something's going to break. Loki's source | |
6246 * code says to terminate with ALC_INVALID. But I | |
6247 * don't know if that's really true, or it happens | |
6248 * to be a coinicidence because it's defined to 0. | |
6249 * Creative provides no source code, so I can't look at how | |
6250 * they terminate it. | |
6251 * So this is really, really ticking me off... | |
6252 * For now, I'm going to use ALC_INVALID. | |
6253 * (Update...after further review of the API spec, | |
6254 * it seems that a NULL terminated string is the correct | |
6255 * termination value to use, so 0 it is.) | |
6256 */ | |
6257 #if 0 | |
6258 ALint attrlist[] = { | |
6259 ALC_FREQUENCY, ALMIXER_DEFAULT_FREQUENCY, | |
6260 /* Don't know anything about these values. | |
6261 * Trust defaults? */ | |
6262 /* Supposed to be the refresh rate in Hz. | |
6263 * I think 15-120 are supposed to be good | |
6264 * values. Though I haven't gotten any effect except | |
6265 * for one strange instance on a Mac. But it was | |
6266 * unrepeatable. | |
6267 */ | |
6268 #if 0 | |
6269 ALC_REFRESH, 15, | |
6270 #endif | |
6271 /* Sync requires a alcProcessContext() call | |
6272 * for every cycle. By default, this is | |
6273 * not used and the value is AL_FALSE | |
6274 * because it will probably perform | |
6275 * pretty badly for me. | |
6276 */ | |
6277 #ifdef ENABLE_ALMIXER_ALC_SYNC | |
6278 ALC_SYNC, AL_TRUE, | |
6279 #else | |
6280 ALC_SYNC, AL_FALSE, | |
6281 #endif | |
6282 /* Looking at the API spec, it implies | |
6283 * that the list be a NULL terminated string | |
6284 * so it's probably not safe to use ALC_INVALID | |
6285 */ | |
6286 /* | |
6287 ALC_INVALID }; | |
6288 */ | |
6289 '\0'}; | |
6290 #endif | |
6291 /* Redo: I'm going to allow ALC_REFRESH to be set. | |
6292 * However, if no value is specified, I don't | |
6293 * want it in the list so I can get the OpenAL defaults | |
6294 */ | |
6295 ALint attrlist[7]; | |
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6296 ALsizei current_attrlist_index = 0; |
0 | 6297 |
6298 #ifdef ENABLE_PARANOID_SIGNEDNESS_CHECK | |
6299 /* More problems: I'm getting bit by endian/signedness issues on | |
6300 * different platforms. I can find the endianess easily enough, | |
6301 * but I don't know how to determine what the correct signedness | |
6302 * is (if such a thing exists). I do know that if I try using | |
6303 * unsigned on OSX with an originally signed sample, I get | |
6304 * distortion. However, I don't have any native unsigned samples | |
6305 * to test. But I'm assuming that the platform must be in the | |
6306 * correct signedness no matter what. | |
6307 * I can either assume everybody is signed, or I can try to | |
6308 * determine the value. If I try to determine the values, | |
6309 * I think my only ability to figure it out will be to open | |
6310 * SDL_Audio, and read what the obtained settings were. | |
6311 * Then shutdown everything. However, I don't even know how | |
6312 * reliable this is. | |
6313 * Update: I think I resolved the issues...forgot to update | |
6314 * these comments when it happened. I should check the revision control | |
6315 * log... Anyway, I think the issue was partly related to me not | |
6316 * doing something correctly with the AudioInfo or some kind | |
6317 * of stupid endian bug in my code, and weirdness ensued. Looking at the | |
6318 * revision control, I think I might have assumed that SDL_Sound would | |
6319 * do the right thing with a NULL AudioInfo, but I was incorrect, | |
6320 * and had to fill one out myself. | |
6321 */ | |
6322 SDL_AudioSpec desired; | |
6323 SDL_AudioSpec obtained; | |
6324 #endif | |
6325 | |
6326 | |
6327 /* Make sure ALmixer isn't already initialized */ | |
6328 if(ALmixer_Initialized) | |
6329 { | |
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6330 return AL_FALSE; |
0 | 6331 } |
6332 | |
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6333 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
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6334 ALmixer_InitTime(); |
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6335 |
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6336 /* Note: The pool may have been created on previous Init's */ |
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6337 /* I leave the pool allocated allocated in case the user wants |
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6338 * to read the pool in case of a failure (such as in this function). |
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6339 * This is not actually a leak. |
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6340 */ |
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6341 if(NULL == s_ALmixerErrorPool) |
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6342 { |
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6343 s_ALmixerErrorPool = TError_CreateErrorPool(); |
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6344 } |
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6345 if(NULL == s_ALmixerErrorPool) |
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6346 { |
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6347 return AL_FALSE; |
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6348 } |
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6349 /* |
2
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6350 fprintf(stderr, "tError Test0\n"); |
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6351 ALmixer_SetError("Initing (and testing SetError)"); |
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6352 fprintf(stderr, "tError Test1: %s\n", ALmixer_GetError()); |
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6353 fprintf(stderr, "tError Test2: %s\n", ALmixer_GetError()); |
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6354 */ |
2
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6355 #endif |
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6356 |
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6357 |
0 | 6358 /* Set the defaults */ |
2
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6359 /* |
0 | 6360 attrlist[0] = ALC_FREQUENCY; |
6361 attrlist[1] = ALMIXER_DEFAULT_FREQUENCY; | |
6362 attrlist[2] = ALC_SYNC; | |
6363 #ifdef ENABLE_ALMIXER_ALC_SYNC | |
6364 attrlist[3] = ALC_TRUE; | |
6365 #else | |
6366 attrlist[3] = ALC_FALSE; | |
6367 #endif | |
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6368 */ |
0 | 6369 /* Set frequency value if it is not 0 */ |
6370 if(0 != frequency) | |
6371 { | |
2
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6372 attrlist[current_attrlist_index] = ALC_FREQUENCY; |
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6373 current_attrlist_index++; |
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6374 attrlist[current_attrlist_index] = (ALint)frequency; |
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6375 current_attrlist_index++; |
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6376 } |
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6377 |
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6378 #ifdef ENABLE_ALMIXER_ALC_SYNC |
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6379 attrlist[current_attrlist_index] = ALC_SYNC; |
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6380 current_attrlist_index++; |
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6381 attrlist[current_attrlist_index] = ALC_TRUE; |
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6382 current_attrlist_index++; |
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6383 #endif |
0 | 6384 |
6385 /* If the user specifies a refresh value, | |
6386 * make room for it | |
6387 */ | |
6388 if(0 != refresh) | |
6389 { | |
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6390 attrlist[current_attrlist_index] = (ALint)ALC_REFRESH; |
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6391 current_attrlist_index++; |
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6392 attrlist[current_attrlist_index] = refresh; |
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6393 current_attrlist_index++; |
0 | 6394 } |
6395 | |
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6396 /* End attribute list */ |
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6397 attrlist[current_attrlist_index] = '\0'; |
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6398 |
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6399 |
0 | 6400 /* Initialize SDL_Sound */ |
6401 if(! Sound_Init() ) | |
6402 { | |
6403 ALmixer_SetError(Sound_GetError()); | |
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6404 return AL_FALSE; |
0 | 6405 } |
6406 #ifdef ENABLE_PARANOID_SIGNEDNESS_CHECK | |
6407 /* Here is the paranoid check that opens | |
6408 * SDL audio in an attempt to find the correct | |
6409 * system values. | |
6410 */ | |
6411 /* Doesn't have to be the actual value I think | |
6412 * (as long as it doesn't influence format, in | |
6413 * which case I'm probably screwed anyway because OpenAL | |
6414 * may easily choose to do something else). | |
6415 */ | |
6416 desired.freq = 44100; | |
6417 desired.channels = 2; | |
6418 desired.format = AUDIO_S16SYS; | |
6419 desired.callback = my_dummy_audio_callback; | |
6420 if(SDL_OpenAudio(&desired, &obtained) >= 0) | |
6421 { | |
6422 SIGN_TYPE_16BIT_FORMAT = obtained.format; | |
6423 /* Now to get really paranoid, we should probably | |
6424 * also assume that the 8bit format is also the | |
6425 * same sign type and set that value | |
6426 */ | |
6427 if(AUDIO_S16SYS == obtained.format) | |
6428 { | |
6429 SIGN_TYPE_8BIT_FORMAT = AUDIO_S8; | |
6430 } | |
6431 /* Should be AUDIO_U16SYS */ | |
6432 else | |
6433 { | |
6434 SIGN_TYPE_8BIT_FORMAT = AUDIO_U8; | |
6435 } | |
6436 SDL_CloseAudio(); | |
6437 } | |
6438 else | |
6439 { | |
6440 /* Well, I guess I'm in trouble. I guess it's my best guess | |
6441 */ | |
6442 SIGN_TYPE_16_BIT_FORMAT = AUDIO_S16SYS; | |
6443 SIGN_TYPE_8_BIT_FORMAT = AUDIO_S8; | |
6444 } | |
6445 #endif | |
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6446 |
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6447 #ifndef ALMIXER_COMPILE_WITHOUT_SDL |
0 | 6448 /* Weirdness: It seems that SDL_Init(SDL_INIT_AUDIO) |
6449 * causes OpenAL and SMPEG to conflict. For some reason | |
6450 * if SDL_Init on audio is active, then all the SMPEG | |
6451 * decoded sound comes out silent. Unfortunately, | |
6452 * Sound_Init() invokes SDL_Init on audio. I'm | |
6453 * not sure why it actually needs it... | |
6454 * But we'll attempt to disable it here after the | |
6455 * SDL_Sound::Init call and hope it doesn't break SDL_Sound. | |
6456 */ | |
6457 SDL_QuitSubSystem(SDL_INIT_AUDIO); | |
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6458 #endif |
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6459 |
0 | 6460 /* I'm told NULL will call the default string |
6461 * and hopefully do the right thing for each platform | |
6462 */ | |
6463 /* | |
6464 dev = alcOpenDevice( NULL ); | |
6465 */ | |
6466 /* Now I'm told I need to set both the device and context | |
6467 * to have the same sampling rate, so I must pass a string | |
6468 * to OpenDevice(). I don't know how portable these strings are. | |
6469 * I don't even know if the format for strings is | |
6470 * compatible | |
6471 * From the testattrib.c in the Loki test section | |
6472 * dev = alcOpenDevice( (const ALubyte *) "'((sampling-rate 22050))" ); | |
6473 */ | |
6474 | |
6475 #ifdef USING_LOKI_AL_DIST | |
6476 sprintf(device_string, "'((sampling-rate %d))", attrlist[1]); | |
6477 dev = alcOpenDevice( (const ALubyte *) device_string ); | |
6478 #else | |
6479 dev = alcOpenDevice( NULL ); | |
6480 #endif | |
6481 if(NULL == dev) | |
6482 { | |
6483 ALmixer_SetError("Cannot open sound device for OpenAL"); | |
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6484 return AL_FALSE; |
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6485 } |
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6486 |
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6487 #ifdef __APPLE__ |
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6488 /* The ALC_FREQUENCY attribute is ignored with Apple's implementation. */ |
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6489 /* This extension must be called before the context is created. */ |
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6490 if(0 != frequency) |
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6491 { |
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6492 Internal_alcMacOSXMixerOutputRate((ALdouble)frequency); |
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6493 } |
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6494 ALmixer_Frequency_global = (ALuint)Internal_alcMacOSXGetMixerOutputRate(); |
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6495 /* |
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6496 fprintf(stderr, "Internal_alcMacOSXMixerOutputRate is: %lf", Internal_alcMacOSXGetMixerOutputRate()); |
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6497 */ |
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6498 #endif |
0 | 6499 |
6500 context = alcCreateContext(dev, attrlist); | |
6501 if(NULL == context) | |
6502 { | |
6503 ALmixer_SetError("Cannot create a context OpenAL"); | |
6504 alcCloseDevice(dev); | |
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6505 return AL_FALSE; |
0 | 6506 } |
6507 | |
6508 | |
6509 /* Hmmm, OSX is returning 1 on alcMakeContextCurrent, | |
6510 * but ALC_NO_ERROR is defined to ALC_FALSE. | |
6511 * According to Garin Hiebert, this is actually an inconsistency | |
6512 * in the Loki version. The function should return a boolean. | |
6513 * instead of ALC_NO_ERROR. Garin suggested I check via | |
6514 * alcGetError(). | |
6515 */ | |
6516 /* clear the error */ | |
6517 alcGetError(dev); | |
6518 alcMakeContextCurrent(context); | |
6519 | |
6520 error = alcGetError(dev); | |
6521 if( (ALC_NO_ERROR != error) ) | |
6522 { | |
6523 ALmixer_SetError("Could not MakeContextCurrent"); | |
6524 alcDestroyContext(context); | |
6525 alcCloseDevice(dev); | |
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6526 return AL_FALSE; |
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6527 } |
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6528 |
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6529 /* It looks like OpenAL won't let us ask it what |
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6530 * the set frequency is, so we need to save our |
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6531 * own copy. Yuck. |
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6532 * Update: J. Valenzuela just updated the Loki |
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6533 * dist (2003/01/02) to handle this. |
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6534 * The demo is in testattrib.c. |
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6535 */ |
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6536 /* |
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6537 ALmixer_Frequency_global = frequency; |
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6538 */ |
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6539 #ifndef __APPLE__ |
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6540 alcGetIntegerv(dev, ALC_FREQUENCY, 1, &ALmixer_Frequency_global); |
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6541 /* |
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6542 fprintf(stderr, "alcGetIntegerv ALC_FREQUENCY is: %d", ALmixer_Frequency_global); |
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6543 */ |
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6544 #endif |
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6545 |
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6546 |
0 | 6547 #if 0 |
6548 /* OSX is failing on alcMakeContextCurrent(). Try checking it first? */ | |
6549 if(alcGetCurrentContext() != context) | |
6550 { | |
6551 /* Hmmm, OSX is returning 1 on alcMakeContextCurrent, | |
6552 * but ALC_NO_ERROR is defined to ALC_FALSE. | |
6553 * I think this is a bug in the OpenAL implementation. | |
6554 */ | |
6555 fprintf(stderr,"alcMakeContextCurrent returns %d\n", alcMakeContextCurrent(context)); | |
6556 | |
6557 fprintf(stderr, "Making context current\n"); | |
6558 #ifndef __APPLE__ | |
6559 if(alcMakeContextCurrent(context) != ALC_NO_ERROR) | |
6560 #else | |
6561 if(!alcMakeContextCurrent(context)) | |
6562 #endif | |
6563 { | |
6564 ALmixer_SetError("Could not MakeContextCurrent"); | |
6565 alcDestroyContext(context); | |
6566 alcCloseDevice(dev); | |
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6567 return AL_FALSE; |
0 | 6568 } |
6569 } | |
6570 #endif | |
6571 | |
6572 | |
6573 /* #endif */ | |
6574 /* Saw this in the README with the OS X OpenAL distribution. | |
6575 * It looked interesting and simple, so I thought I might | |
6576 * try it out. | |
6577 * ***** ALC_CONVERT_DATA_UPON_LOADING | |
6578 * This extension allows the caller to tell OpenAL to preconvert to the native Core | |
6579 * Audio format, the audio data passed to the | |
6580 * library with the alBufferData() call. Preconverting the audio data, reduces CPU | |
6581 * usage by removing an audio data conversion | |
6582 * (per source) at render timem at the expense of a larger memory footprint. | |
6583 * | |
6584 * This feature is toggled on/off by using the alDisable() & alEnable() APIs. This | |
6585 * setting will be applied to all subsequent | |
6586 * calls to alBufferData(). | |
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6587 * |
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6588 * Update: Some people keep reporting that they see the enable fail on Mac, but I can't reproduce it myself. |
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6589 * Rather than deal with it right now, I think I am going to make it an opt-in thing. |
0 | 6590 */ |
22
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6591 #if defined(__APPLE__) && defined(ALMIXER_USE_OSX_CONVERT_DATA_UPON_LOADING) |
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6592 /* |
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6593 iPhone is getting this enum, but is failing on the enable, so I guess I'll define it out. |
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6594 */ |
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6595 #if (TARGET_OS_IPHONE == 1) || (TARGET_IPHONE_SIMULATOR == 1) |
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6596 |
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6597 #else |
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6598 /* iOS reports this enum exists, but loading it always fails, so make it Mac only. */ |
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6599 ALenum convert_data_enum = alcGetEnumValue(dev, "ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING"); |
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6600 /* |
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6601 fprintf(stderr, "ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING=0x%x", convert_data_enum); |
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6602 */ |
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6603 if(0 != convert_data_enum) |
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6604 { |
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6605 alEnable(convert_data_enum); |
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6606 } |
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6607 if( (AL_NO_ERROR != alGetError()) ) |
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6608 { |
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6609 fprintf(stderr, "ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING attempted but failed"); |
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6610 ALmixer_SetError("ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING attempted but failed"); |
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6611 } |
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6612 #endif |
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6613 |
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6614 #endif /* __APPLE__ */ |
0 | 6615 |
6616 | |
6617 | |
6618 | |
6619 ALmixer_Initialized = 1; | |
6620 | |
22
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6621 if(num_sources == 0) |
0 | 6622 { |
6623 Number_of_Channels_global = ALMIXER_DEFAULT_NUM_CHANNELS; | |
6624 } | |
6625 else | |
6626 { | |
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6627 /* probably should make Number_of_Channels_global an ALuint, but need to cast which_channel all the time */ |
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6628 Number_of_Channels_global = (ALint)num_sources; |
0 | 6629 } |
6630 Number_of_Reserve_Channels_global = 0; | |
6631 Is_Playing_global = 0; | |
6632 /* Set to Null in case system quit and was reinitialized */ | |
6633 Channel_Done_Callback = NULL; | |
6634 Channel_Done_Callback_Userdata = NULL; | |
6635 Channel_Data_Callback = NULL; | |
1 | 6636 Channel_Data_Callback_Userdata = NULL; |
0 | 6637 |
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6638 /* Allocate memory for linked list of ALmixerData. */ |
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6639 s_listOfALmixerData = LinkedList_Create(); |
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6640 if(NULL == s_listOfALmixerData) |
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6641 { |
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6642 ALmixer_SetError("Couldn't create linked list"); |
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6643 alcDestroyContext(context); |
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6644 alcCloseDevice(dev); |
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6645 ALmixer_Initialized = 0; |
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6646 Number_of_Channels_global = 0; |
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6647 return AL_FALSE; |
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6648 } |
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6649 |
0 | 6650 /* Allocate memory for the list of channels */ |
6651 ALmixer_Channel_List = (struct ALmixer_Channel*) malloc(Number_of_Channels_global * sizeof(struct ALmixer_Channel)); | |
6652 if(NULL == ALmixer_Channel_List) | |
6653 { | |
6654 ALmixer_SetError("Out of Memory for Channel List"); | |
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6655 LinkedList_Free(s_listOfALmixerData); |
0 | 6656 alcDestroyContext(context); |
6657 alcCloseDevice(dev); | |
6658 ALmixer_Initialized = 0; | |
6659 Number_of_Channels_global = 0; | |
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6660 return AL_FALSE; |
0 | 6661 } |
6662 | |
6663 /* Allocate memory for the list of sources that map to the channels */ | |
6664 Source_Map_List = (Source_Map*) malloc(Number_of_Channels_global * sizeof(Source_Map)); | |
6665 if(NULL == Source_Map_List) | |
6666 { | |
6667 ALmixer_SetError("Out of Memory for Source Map List"); | |
6668 free(ALmixer_Channel_List); | |
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6669 LinkedList_Free(s_listOfALmixerData); |
0 | 6670 alcDestroyContext(context); |
6671 alcCloseDevice(dev); | |
6672 ALmixer_Initialized = 0; | |
6673 Number_of_Channels_global = 0; | |
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6674 return AL_FALSE; |
0 | 6675 } |
6676 | |
6677 /* Create array that will hold the sources */ | |
6678 source = (ALuint*)malloc(Number_of_Channels_global * sizeof(ALuint)); | |
6679 if(NULL == source) | |
6680 { | |
6681 ALmixer_SetError("Out of Memory for sources"); | |
6682 free(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 /* Clear the error state */ | |
6693 alGetError(); | |
6694 /* Generate the OpenAL sources */ | |
6695 alGenSources(Number_of_Channels_global, source); | |
6696 if( (error=alGetError()) != AL_NO_ERROR) | |
6697 { | |
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6698 ALmixer_SetError("Couldn't generate sources: %s\n", alGetString(error)); |
0 | 6699 free(ALmixer_Channel_List); |
6700 free(Source_Map_List); | |
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6701 LinkedList_Free(s_listOfALmixerData); |
0 | 6702 alcDestroyContext(context); |
6703 alcCloseDevice(dev); | |
6704 ALmixer_Initialized = 0; | |
6705 Number_of_Channels_global = 0; | |
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6706 return AL_FALSE; |
0 | 6707 } |
6708 | |
6709 /* Initialize each channel and associate one source to one channel */ | |
6710 for(i=0; i<Number_of_Channels_global; i++) | |
6711 { | |
6712 if(0 == source[i]) | |
6713 { | |
6714 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"); | |
6715 } | |
6716 | |
6717 Init_Channel(i); | |
6718 /* Keeping the source allocation out of the Init function | |
6719 * in case I want to reuse the Init | |
6720 * function for resetting data | |
6721 */ | |
6722 ALmixer_Channel_List[i].alsource = source[i]; | |
6723 /* Now also keep a copy of the source to channel mapping | |
6724 * in case we need to look up a channel from the source | |
6725 * instead of a source from a channel | |
6726 */ | |
6727 Source_Map_List[i].source = source[i]; | |
6728 Source_Map_List[i].channel = i; | |
6729 /* Clean the channel because there are some things that need to | |
6730 * be done that can't happen until the source is set | |
6731 */ | |
6732 Clean_Channel(i); | |
6733 } | |
6734 | |
6735 /* The Source_Map_List must be sorted by source for binary searches | |
6736 */ | |
6737 qsort(Source_Map_List, Number_of_Channels_global, sizeof(Source_Map), Compare_Source_Map); | |
6738 | |
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6739 /* |
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|
6740 ALmixer_OutputDecoders(); |
6
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6741 */ |
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6742 |
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6743 |
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6744 |
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6745 #ifdef ENABLE_ALMIXER_THREADS |
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6746 s_simpleLock = SDL_CreateMutex(); |
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6747 if(NULL == s_simpleLock) |
0 | 6748 { |
6749 /* SDL sets the error message already? */ | |
6750 free(source); | |
6751 free(ALmixer_Channel_List); | |
6752 free(Source_Map_List); | |
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6753 LinkedList_Free(s_listOfALmixerData); |
0 | 6754 alcDestroyContext(context); |
6755 alcCloseDevice(dev); | |
6756 ALmixer_Initialized = 0; | |
6757 Number_of_Channels_global = 0; | |
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6758 return AL_FALSE; |
0 | 6759 } |
6760 | |
6761 | |
6762 Stream_Thread_global = SDL_CreateThread(Stream_Data_Thread_Callback, NULL); | |
6763 if(NULL == Stream_Thread_global) | |
6764 { | |
6765 /* SDL sets the error message already? */ | |
2
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6766 SDL_DestroyMutex(s_simpleLock); |
0 | 6767 free(source); |
6768 free(ALmixer_Channel_List); | |
6769 free(Source_Map_List); | |
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6770 LinkedList_Free(s_listOfALmixerData); |
0 | 6771 alcDestroyContext(context); |
6772 alcCloseDevice(dev); | |
6773 ALmixer_Initialized = 0; | |
6774 Number_of_Channels_global = 0; | |
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6775 return AL_FALSE; |
0 | 6776 } |
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6777 |
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6778 /* Note: Only a few platforms change the priority. See implementation for notes. */ |
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6779 Internal_LowerThreadPriority(Stream_Thread_global); |
0 | 6780 |
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6781 /* |
0 | 6782 fprintf(stderr, "Using threads\n"); |
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6783 */ |
0 | 6784 #endif /* End of ENABLE_ALMIXER_THREADS */ |
6785 | |
6786 /* We don't need this array any more because all the sources | |
6787 * are connected to channels | |
6788 */ | |
6789 free(source); | |
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6790 return AL_TRUE; |
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6791 } |
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6792 |
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6793 |
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6794 ALboolean ALmixer_InitContext(ALuint frequency, ALuint refresh) |
0 | 6795 { |
6796 ALCdevice* dev; | |
6797 ALCcontext* context; | |
6798 ALCenum error; | |
6799 | |
6800 #ifdef USING_LOKI_AL_DIST | |
6801 /* The Loki dist requires that I set both the | |
6802 * device and context frequency values separately | |
6803 */ | |
6804 /* Hope this won't overflow */ | |
6805 char device_string[256]; | |
6806 #endif | |
6807 | |
6808 /* (Venting frustration) Damn it! Nobody bothered | |
6809 * documenting how you're supposed to use an attribute | |
6810 * list. In fact, the not even the Loki test program | |
6811 * writers seem to know because they use it inconsistently. | |
6812 * For example, how do you terminate that attribute list? | |
6813 * The Loki test code does it 3 different ways. They | |
6814 * set the last value to 0, or they set it to ALC_INVALID, | |
6815 * or they set two final values: ALC_INVALID, 0 | |
6816 * In Loki, 0 and ALC_INVALID happen to be the same, | |
6817 * but with Creative Labs ALC_INVALID is -1. | |
6818 * So something's going to break. Loki's source | |
6819 * code says to terminate with ALC_INVALID. But I | |
6820 * don't know if that's really true, or it happens | |
6821 * to be a coinicidence because it's defined to 0. | |
6822 * Creative provides no source code, so I can't look at how | |
6823 * they terminate it. | |
6824 * So this is really, really ticking me off... | |
6825 * For now, I'm going to use ALC_INVALID. | |
6826 * (Update...after further review of the API spec, | |
6827 * it seems that a NULL terminated string is the correct | |
6828 * termination value to use, so 0 it is.) | |
6829 */ | |
6830 #if 0 | |
6831 ALint attrlist[] = { | |
6832 ALC_FREQUENCY, ALMIXER_DEFAULT_FREQUENCY, | |
6833 /* Don't know anything about these values. | |
6834 * Trust defaults? */ | |
6835 /* Supposed to be the refresh rate in Hz. | |
6836 * I think 15-120 are supposed to be good | |
6837 * values. Though I haven't gotten any effect except | |
6838 * for one strange instance on a Mac. But it was | |
6839 * unrepeatable. | |
6840 */ | |
6841 #if 0 | |
6842 ALC_REFRESH, 15, | |
6843 #endif | |
6844 /* Sync requires a alcProcessContext() call | |
6845 * for every cycle. By default, this is | |
6846 * not used and the value is AL_FALSE | |
6847 * because it will probably perform | |
6848 * pretty badly for me. | |
6849 */ | |
6850 #ifdef ENABLE_ALMIXER_ALC_SYNC | |
6851 ALC_SYNC, AL_TRUE, | |
6852 #else | |
6853 ALC_SYNC, AL_FALSE, | |
6854 #endif | |
6855 /* Looking at the API spec, it implies | |
6856 * that the list be a NULL terminated string | |
6857 * so it's probably not safe to use ALC_INVALID | |
6858 */ | |
6859 /* | |
6860 ALC_INVALID }; | |
6861 */ | |
6862 '\0'}; | |
6863 #endif | |
6864 /* Redo: I'm going to allow ALC_REFRESH to be set. | |
6865 * However, if no value is specified, I don't | |
6866 * want it in the list so I can get the OpenAL defaults | |
6867 */ | |
6868 ALint attrlist[7]; | |
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6869 ALsizei current_attrlist_index = 0; |
0 | 6870 |
6871 #ifdef ENABLE_PARANOID_SIGNEDNESS_CHECK | |
6872 /* More problems: I'm getting bit by endian/signedness issues on | |
6873 * different platforms. I can find the endianess easily enough, | |
6874 * but I don't know how to determine what the correct signedness | |
6875 * is (if such a thing exists). I do know that if I try using | |
6876 * unsigned on OSX with an originally signed sample, I get | |
6877 * distortion. However, I don't have any native unsigned samples | |
6878 * to test. But I'm assuming that the platform must be in the | |
6879 * correct signedness no matter what. | |
6880 * I can either assume everybody is signed, or I can try to | |
6881 * determine the value. If I try to determine the values, | |
6882 * I think my only ability to figure it out will be to open | |
6883 * SDL_Audio, and read what the obtained settings were. | |
6884 * Then shutdown everything. However, I don't even know how | |
6885 * reliable this is. | |
6886 * Update: I think I resolved the issues...forgot to update | |
6887 * these comments when it happened. I should check the revision control | |
6888 * log... Anyway, I think the issue was partly related to me not | |
6889 * doing something correctly with the AudioInfo or some kind | |
6890 * of stupid endian bug in my code, and weirdness ensued. Looking at the | |
6891 * revision control, I think I might have assumed that SDL_Sound would | |
6892 * do the right thing with a NULL AudioInfo, but I was incorrect, | |
6893 * and had to fill one out myself. | |
6894 */ | |
6895 SDL_AudioSpec desired; | |
6896 SDL_AudioSpec obtained; | |
6897 #endif | |
6898 | |
6899 | |
6900 | |
6901 | |
6902 /* Make sure ALmixer isn't already initialized */ | |
6903 if(ALmixer_Initialized) | |
6904 { | |
2
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6905 return AL_FALSE; |
0 | 6906 } |
6907 | |
6908 /* Set the defaults */ | |
6909 attrlist[0] = ALC_FREQUENCY; | |
6910 attrlist[1] = ALMIXER_DEFAULT_FREQUENCY; | |
6911 attrlist[2] = ALC_SYNC; | |
6912 #ifdef ENABLE_ALMIXER_ALC_SYNC | |
6913 attrlist[3] = ALC_TRUE; | |
6914 #else | |
6915 attrlist[3] = ALC_FALSE; | |
6916 #endif | |
6917 /* Set frequency value if it is not 0 */ | |
6918 if(0 != frequency) | |
6919 { | |
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6920 attrlist[current_attrlist_index] = ALC_FREQUENCY; |
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6921 current_attrlist_index++; |
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6922 attrlist[current_attrlist_index] = (ALint)frequency; |
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6923 current_attrlist_index++; |
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6924 } |
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6925 |
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6926 #ifdef ENABLE_ALMIXER_ALC_SYNC |
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6927 attrlist[current_attrlist_index] = ALC_SYNC; |
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6928 current_attrlist_index++; |
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6929 attrlist[current_attrlist_index] = ALC_TRUE; |
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6930 current_attrlist_index++; |
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6931 #endif |
0 | 6932 |
6933 /* If the user specifies a refresh value, | |
6934 * make room for it | |
6935 */ | |
6936 if(0 != refresh) | |
6937 { | |
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6938 attrlist[current_attrlist_index] = (ALint)ALC_REFRESH; |
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6939 current_attrlist_index++; |
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6940 attrlist[current_attrlist_index] = refresh; |
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6941 current_attrlist_index++; |
0 | 6942 } |
6943 | |
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6944 /* End attribute list */ |
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6945 attrlist[current_attrlist_index] = '\0'; |
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6946 |
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6947 |
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6948 |
0 | 6949 /* Initialize SDL_Sound */ |
6950 if(! Sound_Init() ) | |
6951 { | |
6952 ALmixer_SetError(Sound_GetError()); | |
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6953 return AL_FALSE; |
0 | 6954 } |
6955 #ifdef ENABLE_PARANOID_SIGNEDNESS_CHECK | |
6956 /* Here is the paranoid check that opens | |
6957 * SDL audio in an attempt to find the correct | |
6958 * system values. | |
6959 */ | |
6960 /* Doesn't have to be the actual value I think | |
6961 * (as long as it doesn't influence format, in | |
6962 * which case I'm probably screwed anyway because OpenAL | |
6963 * may easily choose to do something else). | |
6964 */ | |
6965 desired.freq = 44100; | |
6966 desired.channels = 2; | |
6967 desired.format = AUDIO_S16SYS; | |
6968 desired.callback = my_dummy_audio_callback; | |
6969 if(SDL_OpenAudio(&desired, &obtained) >= 0) | |
6970 { | |
6971 SIGN_TYPE_16BIT_FORMAT = obtained.format; | |
6972 /* Now to get really paranoid, we should probably | |
6973 * also assume that the 8bit format is also the | |
6974 * same sign type and set that value | |
6975 */ | |
6976 if(AUDIO_S16SYS == obtained.format) | |
6977 { | |
6978 SIGN_TYPE_8BIT_FORMAT = AUDIO_S8; | |
6979 } | |
6980 /* Should be AUDIO_U16SYS */ | |
6981 else | |
6982 { | |
6983 SIGN_TYPE_8BIT_FORMAT = AUDIO_U8; | |
6984 } | |
6985 SDL_CloseAudio(); | |
6986 } | |
6987 else | |
6988 { | |
6989 /* Well, I guess I'm in trouble. I guess it's my best guess | |
6990 */ | |
6991 SIGN_TYPE_16_BIT_FORMAT = AUDIO_S16SYS; | |
6992 SIGN_TYPE_8_BIT_FORMAT = AUDIO_S8; | |
6993 } | |
6994 #endif | |
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6995 |
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6996 #ifndef ALMIXER_COMPILE_WITHOUT_SDL |
0 | 6997 /* Weirdness: It seems that SDL_Init(SDL_INIT_AUDIO) |
6998 * causes OpenAL and SMPEG to conflict. For some reason | |
6999 * if SDL_Init on audio is active, then all the SMPEG | |
7000 * decoded sound comes out silent. Unfortunately, | |
7001 * Sound_Init() invokes SDL_Init on audio. I'm | |
7002 * not sure why it actually needs it... | |
7003 * But we'll attempt to disable it here after the | |
7004 * SDL_Sound::Init call and hope it doesn't break SDL_Sound. | |
7005 */ | |
7006 SDL_QuitSubSystem(SDL_INIT_AUDIO); | |
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7007 #endif |
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7008 |
0 | 7009 /* I'm told NULL will call the default string |
7010 * and hopefully do the right thing for each platform | |
7011 */ | |
7012 /* | |
7013 dev = alcOpenDevice( NULL ); | |
7014 */ | |
7015 /* Now I'm told I need to set both the device and context | |
7016 * to have the same sampling rate, so I must pass a string | |
7017 * to OpenDevice(). I don't know how portable these strings are. | |
7018 * I don't even know if the format for strings is | |
7019 * compatible | |
7020 * From the testattrib.c in the Loki test section | |
7021 * dev = alcOpenDevice( (const ALubyte *) "'((sampling-rate 22050))" ); | |
7022 */ | |
7023 | |
7024 #ifdef USING_LOKI_AL_DIST | |
7025 sprintf(device_string, "'((sampling-rate %d))", attrlist[1]); | |
7026 dev = alcOpenDevice( (const ALubyte *) device_string ); | |
7027 #else | |
7028 dev = alcOpenDevice( NULL ); | |
7029 #endif | |
7030 if(NULL == dev) | |
7031 { | |
7032 ALmixer_SetError("Cannot open sound device for OpenAL"); | |
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7033 return AL_FALSE; |
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|
7034 } |
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7035 |
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7036 #ifdef __APPLE__ |
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7037 /* The ALC_FREQUENCY attribute is ignored with Apple's implementation. */ |
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7038 /* This extension must be called before the context is created. */ |
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7039 if(0 != frequency) |
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|
7040 { |
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|
7041 Internal_alcMacOSXMixerOutputRate((ALdouble)frequency); |
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7042 } |
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|
7043 ALmixer_Frequency_global = (ALuint)Internal_alcMacOSXGetMixerOutputRate(); |
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7044 /* |
2
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7045 fprintf(stderr, "Internal_alcMacOSXMixerOutputRate is: %lf", Internal_alcMacOSXGetMixerOutputRate()); |
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7046 */ |
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7047 #endif |
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7048 |
0 | 7049 |
7050 context = alcCreateContext(dev, attrlist); | |
7051 if(NULL == context) | |
7052 { | |
7053 ALmixer_SetError("Cannot create a context OpenAL"); | |
7054 alcCloseDevice(dev); | |
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7055 return AL_FALSE; |
0 | 7056 } |
7057 | |
7058 | |
7059 /* Hmmm, OSX is returning 1 on alcMakeContextCurrent, | |
7060 * but ALC_NO_ERROR is defined to ALC_FALSE. | |
7061 * According to Garin Hiebert, this is actually an inconsistency | |
7062 * in the Loki version. The function should return a boolean. | |
7063 * instead of ALC_NO_ERROR. Garin suggested I check via | |
7064 * alcGetError(). | |
7065 */ | |
7066 /* clear the error */ | |
7067 alcGetError(dev); | |
7068 alcMakeContextCurrent(context); | |
7069 | |
7070 error = alcGetError(dev); | |
7071 if( (ALC_NO_ERROR != error) ) | |
7072 { | |
7073 ALmixer_SetError("Could not MakeContextCurrent"); | |
7074 alcDestroyContext(context); | |
7075 alcCloseDevice(dev); | |
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7076 return AL_FALSE; |
0 | 7077 } |
7078 | |
7079 | |
7080 #if 0 | |
7081 /* OSX is failing on alcMakeContextCurrent(). Try checking it first? */ | |
7082 if(alcGetCurrentContext() != context) | |
7083 { | |
7084 /* Hmmm, OSX is returning 1 on alcMakeContextCurrent, | |
7085 * but ALC_NO_ERROR is defined to ALC_FALSE. | |
7086 * I think this is a bug in the OpenAL implementation. | |
7087 */ | |
7088 fprintf(stderr,"alcMakeContextCurrent returns %d\n", alcMakeContextCurrent(context)); | |
7089 | |
7090 fprintf(stderr, "Making context current\n"); | |
7091 #ifndef __APPLE__ | |
7092 if(alcMakeContextCurrent(context) != ALC_NO_ERROR) | |
7093 #else | |
7094 if(!alcMakeContextCurrent(context)) | |
7095 #endif | |
7096 { | |
7097 ALmixer_SetError("Could not MakeContextCurrent"); | |
7098 alcDestroyContext(context); | |
7099 alcCloseDevice(dev); | |
2
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7100 return AL_FALSE; |
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|
7101 } |
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7102 |
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|
7103 } |
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|
7104 #endif |
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|
7105 |
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|
7106 /* It looks like OpenAL won't let us ask it what |
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|
7107 * the set frequency is, so we need to save our |
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7108 * own copy. Yuck. |
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|
7109 * Update: J. Valenzuela just updated the Loki |
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|
7110 * dist (2003/01/02) to handle this. |
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|
7111 * The demo is in testattrib.c. |
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7112 */ |
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7113 #ifndef __APPLE__ |
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7114 alcGetIntegerv(dev, ALC_FREQUENCY, 1, &ALmixer_Frequency_global); |
6
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7115 /* |
2
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7116 fprintf(stderr, "alcGetIntegerv ALC_FREQUENCY is: %d", ALmixer_Frequency_global); |
6
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7117 */ |
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7118 #endif |
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7119 |
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7120 |
0 | 7121 |
7122 /* Saw this in the README with the OS X OpenAL distribution. | |
7123 * It looked interesting and simple, so I thought I might | |
7124 * try it out. | |
7125 * ***** ALC_CONVERT_DATA_UPON_LOADING | |
7126 * This extension allows the caller to tell OpenAL to preconvert to the native Core | |
7127 * Audio format, the audio data passed to the | |
7128 * library with the alBufferData() call. Preconverting the audio data, reduces CPU | |
7129 * usage by removing an audio data conversion | |
7130 * (per source) at render timem at the expense of a larger memory footprint. | |
7131 * | |
7132 * This feature is toggled on/off by using the alDisable() & alEnable() APIs. This | |
7133 * setting will be applied to all subsequent | |
7134 * calls to alBufferData(). | |
22
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7135 * Update: Some people keep reporting that they see the enable fail on Mac, but I can't reproduce it myself. |
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7136 * Rather than deal with it right now, I think I am going to make it an opt-in thing. |
0 | 7137 */ |
22
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7138 #if defined(__APPLE__) && defined(ALMIXER_USE_OSX_CONVERT_DATA_UPON_LOADING) |
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7139 /* |
22
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7140 iPhone is getting this enum, but is failing on the enable, so I guess I'll define it out. |
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7141 */ |
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7142 #if (TARGET_OS_IPHONE == 1) || (TARGET_IPHONE_SIMULATOR == 1) |
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7143 |
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|
7144 #else |
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7145 /* iOS reports this enum exists, but loading it always fails, so make it Mac only. */ |
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7146 ALenum convert_data_enum = alcGetEnumValue(dev, "ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING"); |
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7147 /* |
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7148 fprintf(stderr, "ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING=0x%x", convert_data_enum); |
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7149 */ |
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7150 if(0 != convert_data_enum) |
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7151 { |
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7152 alEnable(convert_data_enum); |
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7153 } |
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7154 if( (AL_NO_ERROR != alGetError()) ) |
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7155 { |
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|
7156 fprintf(stderr, "ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING attempted but failed"); |
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7157 ALmixer_SetError("ALC_MAC_OSX_CONVERT_DATA_UPON_LOADING attempted but failed"); |
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7158 } |
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|
7159 #endif |
2
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7160 #endif |
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7161 |
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7162 return AL_TRUE; |
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|
7163 } |
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7164 |
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7165 |
22
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7166 ALboolean ALmixer_InitMixer(ALuint num_sources) |
0 | 7167 { |
2
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7168 ALint i; |
0 | 7169 ALenum error; |
7170 ALuint* source; | |
7171 | |
7172 | |
7173 ALmixer_Initialized = 1; | |
7174 | |
2
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7175 |
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7176 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
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7177 ALmixer_InitTime(); |
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7178 |
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|
7179 /* Note: The pool may have been created on previous Init's */ |
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7180 /* I leave the pool allocated allocated in case the user wants |
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7181 * to read the pool in case of a failure (such as in this function). |
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7182 * This is not actually a leak. |
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|
7183 */ |
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|
7184 if(NULL == s_ALmixerErrorPool) |
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|
7185 { |
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|
7186 s_ALmixerErrorPool = TError_CreateErrorPool(); |
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|
7187 } |
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|
7188 if(NULL == s_ALmixerErrorPool) |
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|
7189 { |
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|
7190 return AL_FALSE; |
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|
7191 } |
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|
7192 /* |
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|
7193 fprintf(stderr, "tError Test0\n"); |
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|
7194 ALmixer_SetError("Initing (and testing SetError)"); |
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|
7195 fprintf(stderr, "tError Test1: %s\n", ALmixer_GetError()); |
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|
7196 fprintf(stderr, "tError Test2: %s\n", ALmixer_GetError()); |
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|
7197 */ |
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|
7198 #endif |
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|
7199 |
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|
7200 if(num_sources == 0) |
0 | 7201 { |
7202 Number_of_Channels_global = ALMIXER_DEFAULT_NUM_CHANNELS; | |
7203 } | |
7204 else | |
7205 { | |
22
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|
7206 Number_of_Channels_global = (ALint)num_sources; |
0 | 7207 } |
7208 Number_of_Reserve_Channels_global = 0; | |
7209 Is_Playing_global = 0; | |
7210 /* Set to Null in case system quit and was reinitialized */ | |
7211 Channel_Done_Callback = NULL; | |
7212 Channel_Done_Callback_Userdata = NULL; | |
7213 Channel_Data_Callback = NULL; | |
1 | 7214 Channel_Data_Callback_Userdata = NULL; |
0 | 7215 |
13
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|
7216 /* Allocate memory for linked list of ALmixerData. */ |
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|
7217 s_listOfALmixerData = LinkedList_Create(); |
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|
7218 if(NULL == s_listOfALmixerData) |
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|
7219 { |
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|
7220 ALmixer_SetError("Couldn't create linked list"); |
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|
7221 ALmixer_Initialized = 0; |
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|
7222 Number_of_Channels_global = 0; |
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|
7223 return AL_FALSE; |
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|
7224 } |
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|
7225 |
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|
7226 |
0 | 7227 /* Allocate memory for the list of channels */ |
7228 ALmixer_Channel_List = (struct ALmixer_Channel*) malloc(Number_of_Channels_global * sizeof(struct ALmixer_Channel)); | |
7229 if(NULL == ALmixer_Channel_List) | |
7230 { | |
7231 ALmixer_SetError("Out of Memory for Channel List"); | |
13
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|
7232 LinkedList_Free(s_listOfALmixerData); |
0 | 7233 ALmixer_Initialized = 0; |
7234 Number_of_Channels_global = 0; | |
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|
7235 return AL_FALSE; |
0 | 7236 } |
7237 | |
7238 /* Allocate memory for the list of sources that map to the channels */ | |
7239 Source_Map_List = (Source_Map*) malloc(Number_of_Channels_global * sizeof(Source_Map)); | |
7240 if(NULL == Source_Map_List) | |
7241 { | |
7242 ALmixer_SetError("Out of Memory for Source Map List"); | |
7243 free(ALmixer_Channel_List); | |
13
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|
7244 LinkedList_Free(s_listOfALmixerData); |
0 | 7245 ALmixer_Initialized = 0; |
7246 Number_of_Channels_global = 0; | |
2
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|
7247 return AL_FALSE; |
0 | 7248 } |
7249 | |
7250 /* Create array that will hold the sources */ | |
7251 source = (ALuint*)malloc(Number_of_Channels_global * sizeof(ALuint)); | |
7252 if(NULL == source) | |
7253 { | |
7254 ALmixer_SetError("Out of Memory for sources"); | |
7255 free(Source_Map_List); | |
7256 free(ALmixer_Channel_List); | |
13
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|
7257 LinkedList_Free(s_listOfALmixerData); |
0 | 7258 ALmixer_Initialized = 0; |
7259 Number_of_Channels_global = 0; | |
2
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|
7260 return AL_FALSE; |
0 | 7261 } |
7262 | |
7263 /* Clear the error state */ | |
7264 alGetError(); | |
7265 /* Generate the OpenAL sources */ | |
7266 alGenSources(Number_of_Channels_global, source); | |
7267 if( (error=alGetError()) != AL_NO_ERROR) | |
7268 { | |
2
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|
7269 ALmixer_SetError("Couldn't generate sources: %s\n", alGetString(error)); |
0 | 7270 free(ALmixer_Channel_List); |
7271 free(Source_Map_List); | |
13
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|
7272 LinkedList_Free(s_listOfALmixerData); |
0 | 7273 ALmixer_Initialized = 0; |
7274 Number_of_Channels_global = 0; | |
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|
7275 return AL_FALSE; |
0 | 7276 } |
7277 | |
7278 /* Initialize each channel and associate one source to one channel */ | |
7279 for(i=0; i<Number_of_Channels_global; i++) | |
7280 { | |
7281 Init_Channel(i); | |
7282 /* Keeping the source allocation out of the Init function | |
7283 * in case I want to reuse the Init | |
7284 * function for resetting data | |
7285 */ | |
7286 ALmixer_Channel_List[i].alsource = source[i]; | |
7287 /* Now also keep a copy of the source to channel mapping | |
7288 * in case we need to look up a channel from the source | |
7289 * instead of a source from a channel | |
7290 */ | |
7291 Source_Map_List[i].source = source[i]; | |
7292 Source_Map_List[i].channel = i; | |
7293 /* Clean the channel because there are some things that need to | |
7294 * be done that can't happen until the source is set | |
7295 */ | |
7296 Clean_Channel(i); | |
7297 } | |
7298 | |
7299 /* The Source_Map_List must be sorted by source for binary searches | |
7300 */ | |
7301 qsort(Source_Map_List, Number_of_Channels_global, sizeof(Source_Map), Compare_Source_Map); | |
7302 | |
2
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|
7303 |
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|
7304 #ifdef ENABLE_ALMIXER_THREADS |
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7305 s_simpleLock = SDL_CreateMutex(); |
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|
7306 if(NULL == s_simpleLock) |
0 | 7307 { |
7308 /* SDL sets the error message already? */ | |
7309 free(source); | |
7310 free(ALmixer_Channel_List); | |
7311 free(Source_Map_List); | |
7312 ALmixer_Initialized = 0; | |
7313 Number_of_Channels_global = 0; | |
2
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|
7314 return AL_FALSE; |
0 | 7315 } |
7316 | |
7317 | |
7318 Stream_Thread_global = SDL_CreateThread(Stream_Data_Thread_Callback, NULL); | |
7319 if(NULL == Stream_Thread_global) | |
7320 { | |
7321 /* SDL sets the error message already? */ | |
2
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|
7322 SDL_DestroyMutex(s_simpleLock); |
0 | 7323 free(source); |
7324 free(ALmixer_Channel_List); | |
7325 free(Source_Map_List); | |
7326 ALmixer_Initialized = 0; | |
7327 Number_of_Channels_global = 0; | |
2
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7328 return AL_FALSE; |
0 | 7329 } |
24
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7330 |
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|
7331 /* Note: Only a few platforms change the priority. See implementation for notes. */ |
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7332 Internal_LowerThreadPriority(Stream_Thread_global); |
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7333 |
6
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Disabled some of the debugging printfs
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|
7334 /* |
0 | 7335 fprintf(stderr, "Using threads\n"); |
6
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7336 */ |
0 | 7337 #endif /* End of ENABLE_ALMIXER_THREADS */ |
7338 | |
7339 /* We don't need this array any more because all the sources | |
7340 * are connected to channels | |
7341 */ | |
7342 free(source); | |
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7343 return AL_TRUE; |
0 | 7344 } |
7345 | |
22
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7346 void ALmixer_BeginInterruption() |
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7347 { |
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7348 #ifdef ENABLE_ALMIXER_THREADS |
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7349 SDL_LockMutex(s_simpleLock); |
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7350 #endif |
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7351 s_interruptionContext = alcGetCurrentContext(); |
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7352 if(NULL != s_interruptionContext) |
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7353 { |
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7354 /* iOS alcSuspendContext is a no-op */ |
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7355 alcSuspendContext(s_interruptionContext); |
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7356 alcMakeContextCurrent(NULL); |
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7357 } |
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7358 #ifdef ENABLE_ALMIXER_THREADS |
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7359 SDL_UnlockMutex(s_simpleLock); |
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7360 #endif |
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7361 } |
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7362 |
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|
7363 void ALmixer_EndInterruption() |
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7364 { |
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7365 #ifdef ENABLE_ALMIXER_THREADS |
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7366 SDL_LockMutex(s_simpleLock); |
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|
7367 #endif |
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7368 |
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|
7369 /* Note: iOS, you need to set the AudioSession active. |
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7370 * But if the AudioSession is not initialized, this SetActive |
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7371 * call fails. |
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7372 * So this is probably better if calling app sets this. |
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7373 */ |
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|
7374 /* |
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|
7375 #if (TARGET_OS_IPHONE == 1) || (TARGET_IPHONE_SIMULATOR == 1) |
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|
7376 OSStatus the_error = AudioSessionSetActive(true); |
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7377 if(noErr != the_error) |
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7378 { |
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|
7379 fprintf(stderr, "Error setting audio session active! %d\n", the_error); |
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7380 } |
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|
7381 #endif |
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|
7382 */ |
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|
7383 |
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|
7384 if(NULL != s_interruptionContext) |
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|
7385 { |
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|
7386 alcMakeContextCurrent(s_interruptionContext); |
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|
7387 alcProcessContext(s_interruptionContext); |
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7388 s_interruptionContext = NULL; |
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|
7389 } |
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|
7390 #ifdef ENABLE_ALMIXER_THREADS |
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7391 SDL_UnlockMutex(s_simpleLock); |
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|
7392 #endif |
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|
7393 } |
0 | 7394 |
7395 /* Keep the return value void to allow easy use with | |
7396 * atexit() | |
7397 */ | |
7398 void ALmixer_Quit() | |
7399 { | |
7400 ALCcontext* context; | |
7401 ALCdevice* dev; | |
2
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|
7402 ALint i; |
0 | 7403 |
7404 if( ! ALmixer_Initialized) | |
7405 { | |
7406 return; | |
7407 } | |
2
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|
7408 #ifdef ENABLE_ALMIXER_THREADS |
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|
7409 SDL_LockMutex(s_simpleLock); |
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|
7410 #endif |
22
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|
7411 |
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|
7412 /* Several things we need to do: |
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|
7413 First, we need to check if we are in an interruption. |
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|
7414 If so, we need to reactivate the alcContext so we can call OpenAL functions. |
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|
7415 Next, we should delete the OpenAL sources. |
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|
7416 Next, we need to free all the sound data via ALmixer_FreeData(). |
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|
7417 Finally, we can delete the OpenAL context. |
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|
7418 */ |
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|
7419 |
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|
7420 context = alcGetCurrentContext(); |
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|
7421 if(NULL == context) |
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|
7422 { |
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|
7423 /* We might have an interruption event where the current context is NULL */ |
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|
7424 if(NULL == s_interruptionContext) |
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|
7425 { |
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|
7426 /* Nothing left to try. I think we're done. */ |
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7427 fprintf(stderr, "ALmixer_Quit: Assertion Error. Expecting to find an OpenAL context, but could not find one.\n"); |
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|
7428 return; |
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|
7429 } |
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|
7430 else |
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|
7431 { |
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|
7432 context = s_interruptionContext; |
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|
7433 /* reactivate the context so we can call OpenAL functions */ |
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|
7434 alcMakeContextCurrent(context); |
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|
7435 s_interruptionContext = NULL; |
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|
7436 } |
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|
7437 } |
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|
7438 |
0 | 7439 /* Shutdown everything before closing context */ |
2
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|
7440 Internal_HaltChannel(-1, AL_FALSE); |
0 | 7441 |
7442 /* This flag will cause the thread to terminate */ | |
7443 ALmixer_Initialized = 0; | |
7444 #ifdef ENABLE_ALMIXER_THREADS | |
2
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|
7445 SDL_UnlockMutex(s_simpleLock); |
0 | 7446 SDL_WaitThread(Stream_Thread_global, NULL); |
7447 | |
2
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|
7448 SDL_DestroyMutex(s_simpleLock); |
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|
7449 #endif |
22
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|
7450 |
0 | 7451 /* Delete all the OpenAL sources */ |
7452 for(i=0; i<Number_of_Channels_global; i++) | |
7453 { | |
7454 alDeleteSources(1, &ALmixer_Channel_List[i].alsource); | |
7455 } | |
7456 /* Delete all the channels */ | |
7457 free(ALmixer_Channel_List); | |
7458 free(Source_Map_List); | |
22
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7459 |
0 | 7460 /* Reset the Number_of_Channels just in case somebody |
7461 * tries using a ALmixer function. | |
7462 * I probably should put "Initialized" checks everywhere, | |
7463 * but I'm too lazy at the moment. | |
7464 */ | |
7465 Number_of_Channels_global = 0; | |
7466 | |
22
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|
7467 |
13
54aa96ae8912
Added LinkedList class to project.
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12
diff
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|
7468 /* Delete the list of ALmixerData's before Sound_Quit deletes |
54aa96ae8912
Added LinkedList class to project.
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diff
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|
7469 * its own underlying information and I potentially have dangling pointers. |
54aa96ae8912
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12
diff
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|
7470 */ |
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12
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|
7471 while(LinkedList_Size(s_listOfALmixerData) > 0) |
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12
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|
7472 { |
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.
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13
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|
7473 /* 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
|
7474 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
|
7475 ALmixer_FreeData(almixer_data); |
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7476 } |
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7477 LinkedList_Free(s_listOfALmixerData); |
54aa96ae8912
Added LinkedList class to project.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
12
diff
changeset
|
7478 s_listOfALmixerData = NULL; |
22
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7479 |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7480 |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7481 /* Need to get the device before I close the context */ |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7482 dev = alcGetContextsDevice(context); |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7483 |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7484 alcMakeContextCurrent(NULL); |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7485 alcDestroyContext(context); |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7486 |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7487 if(NULL == dev) |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7488 { |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7489 return; |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7490 } |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7491 alcCloseDevice(dev); |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
7492 |
0 | 7493 Sound_Quit(); |
7494 | |
2
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7495 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7496 /* Remember: ALmixer_SetError/GetError calls will not work while this is gone. */ |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7497 TError_FreeErrorPool(s_ALmixerErrorPool); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7498 s_ALmixerErrorPool = NULL; |
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Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7499 #endif |
0 | 7500 return; |
7501 } | |
7502 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7503 ALboolean ALmixer_IsInitialized() |
0 | 7504 { |
7505 return ALmixer_Initialized; | |
7506 } | |
7507 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7508 ALuint ALmixer_GetFrequency() |
0 | 7509 { |
7510 return ALmixer_Frequency_global; | |
7511 } | |
7512 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7513 const ALmixer_version* ALmixer_GetLinkedVersion() |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7514 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
7515 static ALmixer_version linked_mixver; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7516 ALMIXER_GET_COMPILED_VERSION(&linked_mixver); |
0 | 7517 return(&linked_mixver); |
7518 } | |
7519 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7520 #ifdef ALMIXER_COMPILE_WITHOUT_SDL |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7521 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7522 const char* ALmixer_GetError() |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7523 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7524 const char* error_string = NULL; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7525 if(NULL == s_ALmixerErrorPool) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7526 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7527 return "Error: You should not call ALmixer_GetError while ALmixer is not initialized"; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7528 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7529 error_string = TError_GetLastErrorStr(s_ALmixerErrorPool); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7530 /* SDL returns empty strings instead of NULL */ |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7531 if(NULL == error_string) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7532 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7533 return ""; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7534 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7535 else |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7536 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7537 return error_string; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7538 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7539 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7540 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7541 void ALmixer_SetError(const char* err_str, ...) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7542 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7543 if(NULL == s_ALmixerErrorPool) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7544 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7545 fprintf(stderr, "Error: You should not call ALmixer_SetError while ALmixer is not initialized\n"); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7546 return; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7547 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7548 va_list argp; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7549 va_start(argp, err_str); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7550 // SDL_SetError which I'm emulating has no number parameter. |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7551 TError_SetErrorv(s_ALmixerErrorPool, 1, err_str, argp); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7552 va_end(argp); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7553 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7554 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7555 #endif |
0 | 7556 |
7557 | |
7558 | |
7559 | |
7560 #if 0 | |
2
279d0427ef26
Overhaul prep for first public release.
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parents:
1
diff
changeset
|
7561 void ALmixer_OutputAttributes() |
0 | 7562 { |
7563 ALint num_flags = 0; | |
7564 ALint* flags = 0; | |
7565 int i; | |
7566 ALCdevice* dev = alcGetContextsDevice( alcGetCurrentContext() ); | |
7567 | |
7568 | |
7569 printf("custom context\n"); | |
7570 | |
7571 alcGetIntegerv(dev, ALC_ATTRIBUTES_SIZE, | |
7572 sizeof num_flags, &num_flags ); | |
7573 | |
7574 printf("Number of Flags: %d\n", num_flags); | |
7575 | |
7576 if(num_flags) | |
7577 { | |
7578 flags = malloc(sizeof(num_flags) * sizeof(ALint)); | |
7579 | |
7580 alcGetIntegerv(dev, ALC_ALL_ATTRIBUTES, | |
7581 sizeof num_flags * sizeof(ALint), | |
7582 flags ); | |
7583 } | |
7584 for(i = 0; i < num_flags-1; i += 2) | |
7585 { | |
7586 printf("key 0x%x : value %d\n", | |
7587 flags[i], flags[i+1]); | |
7588 } | |
7589 free(flags); | |
7590 } | |
7591 #endif | |
7592 | |
7593 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7594 void ALmixer_OutputDecoders() |
0 | 7595 { |
7596 Sound_Version sound_compile_version; | |
7597 Sound_Version sound_link_version; | |
7598 | |
7599 const Sound_DecoderInfo **rc = Sound_AvailableDecoders(); | |
7600 const Sound_DecoderInfo **i; | |
7601 const char **ext; | |
7602 FILE* stream = stdout; | |
7603 | |
7604 | |
7605 fprintf(stream, "SDL_sound Information:\n"); | |
7606 | |
7607 SOUND_VERSION(&sound_compile_version); | |
7608 fprintf(stream, "\tCompiled with SDL_sound version: %d.%d.%d\n", | |
7609 sound_compile_version.major, | |
7610 sound_compile_version.minor, | |
7611 sound_compile_version.patch); | |
7612 | |
7613 Sound_GetLinkedVersion(&sound_link_version); | |
7614 fprintf(stream, "\tRunning (linked) with SDL_sound version: %d.%d.%d\n", | |
7615 sound_link_version.major, | |
7616 sound_link_version.minor, | |
7617 sound_link_version.patch); | |
7618 | |
7619 fprintf(stream, "Supported sound formats:\n"); | |
7620 if (rc == NULL) | |
7621 fprintf(stream, " * Apparently, NONE!\n"); | |
7622 else | |
7623 { | |
7624 for (i = rc; *i != NULL; i++) | |
7625 { | |
7626 fprintf(stream, " * %s\n", (*i)->description); | |
7627 | |
7628 for (ext = (*i)->extensions; *ext != NULL; ext++) | |
7629 fprintf(stream, " File extension \"%s\"\n", *ext); | |
7630 | |
7631 fprintf(stream, " Written by %s.\n %s\n\n", | |
7632 (*i)->author, (*i)->url); | |
7633 } /* for */ | |
7634 } /* else */ | |
7635 | |
7636 fprintf(stream, "\n"); | |
7637 } | |
7638 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7639 void ALmixer_OutputOpenALInfo() |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
7640 { |
279d0427ef26
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parents:
1
diff
changeset
|
7641 ALmixer_version mixer_compile_version; |
279d0427ef26
Overhaul prep for first public release.
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parents:
1
diff
changeset
|
7642 const ALmixer_version * mixer_link_version=ALmixer_GetLinkedVersion(); |
0 | 7643 FILE* stream = stdout; |
7644 | |
7645 fprintf(stream, "OpenAL Information:\n"); | |
7646 fprintf(stream, "\tAL_VENDOR: %s\n", alGetString( AL_VENDOR ) ); | |
7647 fprintf(stream, "\tAL_VERSION: %s\n", alGetString( AL_VERSION ) ); | |
7648 fprintf(stream, "\tAL_RENDERER: %s\n", alGetString( AL_RENDERER ) ); | |
7649 fprintf(stream, "\tAL_EXTENSIONS: %s\n", alGetString( AL_EXTENSIONS ) ); | |
7650 | |
2
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parents:
1
diff
changeset
|
7651 ALMIXER_GET_COMPILED_VERSION(&mixer_compile_version); |
0 | 7652 fprintf(stream, "\nSDL_ALmixer Information:\n"); |
7653 fprintf(stream, "\tCompiled with SDL_ALmixer version: %d.%d.%d\n", | |
7654 mixer_compile_version.major, | |
7655 mixer_compile_version.minor, | |
7656 mixer_compile_version.patch); | |
7657 | |
7658 fprintf(stream, "\tRunning (linked) with SDL_ALmixer version: %d.%d.%d\n", | |
7659 mixer_link_version->major, | |
7660 mixer_link_version->minor, | |
7661 mixer_link_version->patch); | |
7662 | |
7663 fprintf(stream, "\tCompile flags: "); | |
7664 #ifdef ENABLE_LOKI_QUEUE_FIX_HACK | |
7665 fprintf(stream, "ENABLE_LOKI_QUEUE_FIX_HACK "); | |
7666 #endif | |
7667 #ifdef ENABLE_ALMIXER_THREADS | |
7668 fprintf(stream, "ENABLE_ALMIXER_THREADS "); | |
7669 #endif | |
7670 #ifdef ENABLE_ALC_SYNC | |
7671 fprintf(stream, "ENABLE_ALC_SYNC "); | |
7672 #endif | |
7673 fprintf(stream, "\n"); | |
7674 } | |
7675 | |
7676 | |
2
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1
diff
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|
7677 ALint ALmixer_AllocateChannels(ALint numchans) |
279d0427ef26
Overhaul prep for first public release.
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parents:
1
diff
changeset
|
7678 { |
279d0427ef26
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1
diff
changeset
|
7679 ALint retval; |
279d0427ef26
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parents:
1
diff
changeset
|
7680 #ifdef ENABLE_ALMIXER_THREADS |
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diff
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|
7681 SDL_LockMutex(s_simpleLock); |
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Overhaul prep for first public release.
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1
diff
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|
7682 #endif |
0 | 7683 retval = Internal_AllocateChannels(numchans); |
2
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1
diff
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|
7684 #ifdef ENABLE_ALMIXER_THREADS |
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Overhaul prep for first public release.
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diff
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|
7685 SDL_UnlockMutex(s_simpleLock); |
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1
diff
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|
7686 #endif |
0 | 7687 return retval; |
7688 } | |
7689 | |
7690 | |
2
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1
diff
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|
7691 ALint ALmixer_ReserveChannels(ALint num) |
279d0427ef26
Overhaul prep for first public release.
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parents:
1
diff
changeset
|
7692 { |
279d0427ef26
Overhaul prep for first public release.
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1
diff
changeset
|
7693 ALint retval; |
279d0427ef26
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1
diff
changeset
|
7694 #ifdef ENABLE_ALMIXER_THREADS |
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diff
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|
7695 SDL_LockMutex(s_simpleLock); |
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1
diff
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|
7696 #endif |
0 | 7697 retval = Internal_ReserveChannels(num); |
2
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1
diff
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|
7698 #ifdef ENABLE_ALMIXER_THREADS |
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Overhaul prep for first public release.
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diff
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|
7699 SDL_UnlockMutex(s_simpleLock); |
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diff
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|
7700 #endif |
0 | 7701 return retval; |
7702 } | |
7703 | |
7704 | |
7705 | |
7706 | |
2
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diff
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|
7707 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) |
279d0427ef26
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1
diff
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|
7708 { |
279d0427ef26
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diff
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|
7709 ALuint bytes_decoded; |
0 | 7710 ALmixer_Data* ret_data; |
7711 ALenum error; | |
7712 | |
7713 /* Allocate memory */ | |
7714 ret_data = (ALmixer_Data *)malloc(sizeof(ALmixer_Data)); | |
7715 if (NULL == ret_data) | |
7716 { | |
7717 ALmixer_SetError("Out of memory"); | |
7718 return(NULL); | |
7719 } | |
7720 | |
7721 /* Initialize the data fields */ | |
7722 | |
7723 /* Set the Sound_Sample pointer */ | |
7724 ret_data->sample = sample; | |
7725 | |
7726 /* Flag the data to note that it is not in use */ | |
7727 ret_data->in_use = 0; | |
7728 | |
7729 /* Initialize remaining flags */ | |
7730 ret_data->total_time = -1; | |
7731 ret_data->eof = 0; | |
7732 | |
7733 /* Just initialize */ | |
7734 ret_data->num_buffers_in_use = 0; | |
7735 | |
7736 /* Just initialize */ | |
7737 ret_data->total_bytes = 0; | |
7738 | |
7739 /* Just initialize */ | |
7740 ret_data->loaded_bytes = 0; | |
7741 | |
7742 /* Set the max queue buffers (minimum must be 2) */ | |
7743 if(max_queue_buffers < 2) | |
7744 { | |
7745 max_queue_buffers = ALMIXER_DEFAULT_QUEUE_BUFFERS; | |
7746 } | |
7747 ret_data->max_queue_buffers = max_queue_buffers; | |
7748 /* Set up the start up buffers */ | |
7749 if(0 == num_startup_buffers) | |
7750 { | |
7751 num_startup_buffers = ALMIXER_DEFAULT_STARTUP_BUFFERS; | |
7752 } | |
7753 /* Make sure start up buffers is less or equal to max_queue_buffers */ | |
7754 if(num_startup_buffers > max_queue_buffers) | |
7755 { | |
7756 num_startup_buffers = max_queue_buffers; | |
7757 } | |
7758 ret_data->num_startup_buffers = num_startup_buffers; | |
7759 | |
7760 ret_data->buffer_map_list = NULL; | |
7761 ret_data->current_buffer = 0; | |
7762 | |
7763 ret_data->circular_buffer_queue = NULL; | |
7764 | |
7765 /* Now decode and load the data into a data chunk */ | |
7766 /* Different cases for Streamed and Predecoded | |
7767 * Streamed might turn into a predecoded if buffersize | |
7768 * is large enough */ | |
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7769 if(AL_FALSE == decode_mode_is_predecoded) |
0 | 7770 { |
7771 bytes_decoded = Sound_Decode(sample); | |
7772 if(sample->flags & SOUND_SAMPLEFLAG_ERROR) | |
7773 { | |
7774 ALmixer_SetError(Sound_GetError()); | |
7775 Sound_FreeSample(sample); | |
7776 free(ret_data); | |
7777 return NULL; | |
7778 } | |
7779 | |
7780 /* If no data, return an error */ | |
7781 if(0 == bytes_decoded) | |
7782 { | |
7783 ALmixer_SetError("File has no data"); | |
7784 Sound_FreeSample(sample); | |
7785 free(ret_data); | |
7786 return NULL; | |
7787 } | |
7788 | |
7789 /* Note, currently, my Ogg conservative modifications | |
7790 * prevent EOF from being detected in the first read | |
7791 * because of the weird packet behavior of ov_read(). | |
7792 * The EAGAIN will get set, but not the EOF. | |
7793 * I don't know the best way to handle this, | |
7794 * so for now, Ogg's can only be explicitly | |
7795 * predecoded. | |
7796 */ | |
7797 | |
7798 /* Correction: Since we no longer actually keep the | |
7799 * streamed data we read here (we rewind and throw | |
7800 * it away, and start over on Play), it is | |
7801 * safe to read another chunk to see if we've hit EOF | |
7802 */ | |
7803 if(sample->flags & SOUND_SAMPLEFLAG_EAGAIN) | |
7804 { | |
7805 bytes_decoded = Sound_Decode(sample); | |
7806 if(sample->flags & SOUND_SAMPLEFLAG_ERROR) | |
7807 { | |
7808 ALmixer_SetError(Sound_GetError()); | |
7809 Sound_FreeSample(sample); | |
7810 free(ret_data); | |
7811 return NULL; | |
7812 } | |
7813 } | |
7814 | |
7815 | |
7816 /* If we found an EOF, the entire file was | |
7817 * decoded, so we can treat it like one. | |
7818 */ | |
7819 | |
7820 if(sample->flags & SOUND_SAMPLEFLAG_EOF) | |
7821 { | |
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7822 /* |
0 | 7823 fprintf(stderr, "We got LUCKY! File is predecoded even though STREAM was requested\n"); |
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7824 */ |
0 | 7825 ret_data->decoded_all = 1; |
7826 /* Need to keep this information around for | |
7827 * seek and rewind abilities. | |
7828 */ | |
7829 ret_data->total_bytes = bytes_decoded; | |
7830 /* For now, the loaded bytes is the same as total bytes, but | |
7831 * this could change during a seek operation | |
7832 */ | |
7833 ret_data->loaded_bytes = bytes_decoded; | |
7834 | |
7835 /* Let's compute the total playing time | |
7836 * SDL_sound does not yet provide this (we're working on | |
7837 * that at the moment...) | |
7838 */ | |
7839 ret_data->total_time = Compute_Total_Time(&sample->desired, bytes_decoded); | |
7840 | |
7841 /* Create one element in the buffer array for data for OpanAL */ | |
7842 ret_data->buffer = (ALuint*)malloc( sizeof(ALuint) ); | |
7843 if(NULL == ret_data->buffer) | |
7844 { | |
7845 ALmixer_SetError("Out of Memory"); | |
7846 Sound_FreeSample(sample); | |
7847 free(ret_data); | |
7848 return NULL; | |
7849 } | |
7850 /* Clear the error code */ | |
7851 alGetError(); | |
7852 /* Now generate an OpenAL buffer using that first element */ | |
7853 alGenBuffers(1, ret_data->buffer); | |
7854 if( (error = alGetError()) != AL_NO_ERROR) | |
7855 { | |
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7856 ALmixer_SetError("alGenBuffers failed: %s\n", alGetString(error)); |
0 | 7857 Sound_FreeSample(sample); |
7858 free(ret_data->buffer); | |
7859 free(ret_data); | |
7860 return NULL; | |
7861 } | |
7862 | |
7863 | |
7864 /* Now copy the data to the OpenAL buffer */ | |
7865 /* We can't just set a pointer because the API needs | |
7866 * its own copy to assist hardware acceleration */ | |
7867 alBufferData(ret_data->buffer[0], | |
7868 TranslateFormat(&sample->desired), | |
7869 sample->buffer, | |
7870 bytes_decoded, | |
7871 sample->desired.rate | |
7872 ); | |
7873 if( (error = alGetError()) != AL_NO_ERROR) | |
7874 { | |
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7875 ALmixer_SetError("alBufferData failed: %s\n", alGetString(error)); |
0 | 7876 Sound_FreeSample(sample); |
7877 alDeleteBuffers(1, ret_data->buffer); | |
7878 free(ret_data->buffer); | |
7879 free(ret_data); | |
7880 return NULL; | |
7881 } | |
7882 | |
7883 /* We should be done with the sample since it's all | |
7884 * predecoded. So we can free the memory */ | |
7885 | |
7886 /* Additional notes: | |
7887 * We need to keep data around in case Seek() is needed | |
7888 * or other Sound_AudioInfo is needed. | |
7889 * This can either be done by not deleting the sample, | |
7890 * or it can be done by dynamically recreating it | |
7891 * when we need it. | |
7892 */ | |
7893 /* Since OpenAL won't let us retrieve it | |
7894 * (aka dynamically), we have to keep the Sample | |
7895 * around because since the user requested | |
7896 * streamed and we offered predecoded, | |
7897 * we don't want to mess up the user who | |
7898 * was expecting seek support | |
7899 * So Don't Do anything | |
7900 */ | |
7901 /* | |
7902 if(0 == access_data) | |
7903 { | |
7904 Sound_FreeSample(sample); | |
7905 ret_data->sample = NULL; | |
7906 } | |
7907 */ | |
7908 /* Else, We keep a copy of the sample around. | |
7909 * so don't do anything. | |
7910 */ | |
7911 | |
7912 #if 0 | |
7913 #if defined(DISABLE_PREDECODED_SEEK) | |
7914 Sound_FreeSample(sample); | |
7915 ret_data->sample = NULL; | |
7916 #elif !defined(DISABLE_SEEK_MEMORY_OPTIMIZATION) | |
7917 Sound_FreeSample(sample); | |
7918 ret_data->sample = NULL; | |
7919 #else | |
7920 /* We keep a copy of the sample around. | |
7921 * so don't do anything. | |
7922 */ | |
7923 #endif | |
7924 #endif | |
7925 /* okay we're done here */ | |
7926 | |
7927 } | |
7928 /* Else, we need to stream the data, so we'll | |
7929 * create multple buffers for queuing */ | |
7930 else | |
7931 { | |
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7932 /* |
0 | 7933 fprintf(stderr, "Loading streamed data (not lucky)\n"); |
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7934 */ |
0 | 7935 ret_data->decoded_all = 0; |
7936 | |
7937 /* This information is for predecoded. | |
7938 * Set to 0, since we don't know. | |
7939 */ | |
7940 ret_data->total_bytes = 0; | |
7941 | |
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7942 ret_data->total_time = Sound_GetDuration(sample); |
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7943 |
0 | 7944 /* Create buffers for data |
7945 */ | |
7946 ret_data->buffer = (ALuint*)malloc( sizeof(ALuint) * max_queue_buffers); | |
7947 if(NULL == ret_data->buffer) | |
7948 { | |
7949 ALmixer_SetError("Out of Memory"); | |
7950 Sound_FreeSample(sample); | |
7951 free(ret_data); | |
7952 return NULL; | |
7953 } | |
7954 | |
7955 /* Clear the error code */ | |
7956 alGetError(); | |
7957 /* Now generate an OpenAL buffer using that first element */ | |
7958 alGenBuffers(max_queue_buffers, ret_data->buffer); | |
7959 if( (error = alGetError()) != AL_NO_ERROR) | |
7960 { | |
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7961 ALmixer_SetError("alGenBuffers failed: %s\n", alGetString(error)); |
0 | 7962 Sound_FreeSample(sample); |
7963 free(ret_data->buffer); | |
7964 free(ret_data); | |
7965 return NULL; | |
7966 } | |
7967 | |
7968 /* Redesign: Okay, because of the unqueuing problems and such, | |
7969 * I've decided to redesign where and how queuing is handled. | |
7970 * Before, everything was queued up here. However, this | |
7971 * placed a penalty on load and made performance inconsistent | |
7972 * when samples had to be rewound. It did make things easier | |
7973 * to queue because I could let OpenAL decide which buffer | |
7974 * needed to be queued next. | |
7975 * Now, I'm going to push off the queuing to the actual | |
7976 * Play() command. I'm going to add some book keeping, | |
7977 * and allow for additional buffers to be filled at later | |
7978 * times. | |
7979 */ | |
7980 | |
7981 | |
7982 /* So first of all, because of I already decoded the sample | |
7983 * for testing, I need to decide what to do with it. | |
7984 * The best thing would be be to alBufferData() it. | |
7985 * The problem is it may conflict with the rest of | |
7986 * the system because everything now assumes buffers | |
7987 * are entirely stripped (because of the unqueing | |
7988 * problem). | |
7989 * So it looks like I have to do the crappy thing | |
7990 * and throw away the data, and rewind. | |
7991 */ | |
7992 | |
7993 if(0 == Sound_Rewind(ret_data->sample)) | |
7994 { | |
7995 ALmixer_SetError("Cannot use sample for streamed data because it must be rewindable: %s", Sound_GetError() ); | |
7996 Sound_FreeSample(sample); | |
7997 free(ret_data->buffer); | |
7998 free(ret_data); | |
7999 return NULL; | |
8000 } | |
8001 | |
8002 | |
8003 /* If the user has selected access_data, we need to | |
8004 * keep copies of the queuing buffers around because | |
8005 * OpenAL won't let us access the data. | |
8006 * Allocate the memory for the buffers here | |
8007 * and initialize the albuffer-index map | |
8008 */ | |
8009 if(access_data) | |
8010 { | |
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|
8011 ALuint j; |
0 | 8012 /* Create buffers for data access |
8013 * Should be the same number as the number of queue buffers | |
8014 */ | |
1 | 8015 ret_data->buffer_map_list = (ALmixer_Buffer_Map*)malloc( sizeof(ALmixer_Buffer_Map) * max_queue_buffers); |
0 | 8016 if(NULL == ret_data->buffer_map_list) |
8017 { | |
8018 ALmixer_SetError("Out of Memory"); | |
8019 Sound_FreeSample(sample); | |
8020 free(ret_data->buffer); | |
8021 free(ret_data); | |
8022 return NULL; | |
8023 } | |
8024 | |
8025 ret_data->circular_buffer_queue = CircularQueueUnsignedInt_CreateQueue(max_queue_buffers); | |
8026 if(NULL == ret_data->circular_buffer_queue) | |
8027 { | |
8028 ALmixer_SetError("Out of Memory"); | |
8029 free(ret_data->buffer_map_list); | |
8030 Sound_FreeSample(sample); | |
8031 free(ret_data->buffer); | |
8032 free(ret_data); | |
8033 return NULL; | |
8034 } | |
8035 | |
8036 | |
8037 for(j=0; j<max_queue_buffers; j++) | |
8038 { | |
8039 ret_data->buffer_map_list[j].albuffer = ret_data->buffer[j]; | |
8040 ret_data->buffer_map_list[j].index = j; | |
8041 ret_data->buffer_map_list[j].num_bytes = 0; | |
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8042 ret_data->buffer_map_list[j].data = (ALbyte*)malloc( sizeof(ALbyte) * buffersize); |
0 | 8043 if(NULL == ret_data->buffer_map_list[j].data) |
8044 { | |
8045 ALmixer_SetError("Out of Memory"); | |
8046 break; | |
8047 } | |
8048 } | |
8049 /* If an error happened, we have to clean up the memory */ | |
8050 if(j < max_queue_buffers) | |
8051 { | |
8052 fprintf(stderr, "################## Buffer allocation failed\n"); | |
8053 for( ; j>=0; j--) | |
8054 { | |
8055 free(ret_data->buffer_map_list[j].data); | |
8056 } | |
8057 free(ret_data->buffer_map_list); | |
8058 CircularQueueUnsignedInt_FreeQueue(ret_data->circular_buffer_queue); | |
8059 Sound_FreeSample(sample); | |
8060 free(ret_data->buffer); | |
8061 free(ret_data); | |
8062 return NULL; | |
8063 } | |
8064 | |
8065 /* The Buffer_Map_List must be sorted by albuffer for binary searches | |
8066 */ | |
1 | 8067 qsort(ret_data->buffer_map_list, max_queue_buffers, sizeof(ALmixer_Buffer_Map), Compare_Buffer_Map); |
0 | 8068 } /* End if access_data==true */ |
8069 | |
8070 | |
8071 } /* End of do stream */ | |
8072 } /* end of DECODE_STREAM */ | |
8073 /* User requested decode all (easy, nothing to figure out) */ | |
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8074 else if(AL_TRUE == decode_mode_is_predecoded) |
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8075 { |
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8076 #ifdef ALMIXER_DISABLE_PREDECODED_PRECOMPUTE_BUFFER_SIZE_OPTIMIZATION |
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8077 /* SDL_sound (behind the scenes) seems to loop on buffer_size chunks |
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8078 * until the buffer is filled. It seems like we can |
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8079 * do much better and precompute the size of the buffer |
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8080 * so looping isn't needed. |
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8081 * WARNING: Due to the way SDL_sound is currently implemented, |
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8082 * this may waste a lot of memory up front. |
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8083 * SDL_sound seems to pre-create a buffer of the requested size, |
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8084 * but on DecodeAll, an entirely new buffer is created and |
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8085 * everything is memcpy'd into the new buffer in read chunks |
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8086 * of the buffer_size. This means we need roughly twice the memory |
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8087 * to load a file. |
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8088 */ |
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8089 ALint sound_duration = Sound_GetDuration(sample); |
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8090 if(sound_duration > 0) |
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8091 { |
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|
8092 size_t total_bytes = Compute_Total_Bytes_With_Frame_Padding(&sample->desired, (ALuint)sound_duration); |
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8093 int buffer_resize_succeeded = Sound_SetBufferSize(sample, total_bytes); |
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8094 if(0 == buffer_resize_succeeded) |
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8095 { |
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8096 ALmixer_SetError(Sound_GetError()); |
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8097 Sound_FreeSample(sample); |
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|
8098 free(ret_data); |
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|
8099 return NULL; |
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8100 } |
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|
8101 } |
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|
8102 #endif /* ALMIXER_DISABLE_PREDECODED_PRECOMPUTE_BUFFER_SIZE_OPTIMIZATION */ |
0 | 8103 bytes_decoded = Sound_DecodeAll(sample); |
8104 if(sample->flags & SOUND_SAMPLEFLAG_ERROR) | |
8105 { | |
8106 ALmixer_SetError(Sound_GetError()); | |
8107 Sound_FreeSample(sample); | |
8108 free(ret_data); | |
8109 return NULL; | |
8110 } | |
8111 | |
8112 /* If no data, return an error */ | |
8113 if(0 == bytes_decoded) | |
8114 { | |
8115 ALmixer_SetError("File has no data"); | |
8116 Sound_FreeSample(sample); | |
8117 free(ret_data); | |
8118 return NULL; | |
8119 } | |
8120 | |
8121 | |
8122 ret_data->decoded_all = 1; | |
8123 /* Need to keep this information around for | |
8124 * seek and rewind abilities. | |
8125 */ | |
8126 ret_data->total_bytes = bytes_decoded; | |
8127 /* For now, the loaded bytes is the same as total bytes, but | |
8128 * this could change during a seek operation | |
8129 */ | |
8130 ret_data->loaded_bytes = bytes_decoded; | |
8131 | |
8132 /* Let's compute the total playing time | |
8133 * SDL_sound does not yet provide this (we're working on | |
8134 * that at the moment...) | |
8135 */ | |
8136 ret_data->total_time = Compute_Total_Time(&sample->desired, bytes_decoded); | |
8137 | |
8138 /* Create one element in the buffer array for data for OpanAL */ | |
8139 ret_data->buffer = (ALuint*)malloc( sizeof(ALuint) ); | |
8140 if(NULL == ret_data->buffer) | |
8141 { | |
8142 ALmixer_SetError("Out of Memory"); | |
8143 Sound_FreeSample(sample); | |
8144 free(ret_data); | |
8145 return NULL; | |
8146 } | |
8147 /* Clear the error code */ | |
8148 alGetError(); | |
8149 /* Now generate an OpenAL buffer using that first element */ | |
8150 alGenBuffers(1, ret_data->buffer); | |
8151 if( (error = alGetError()) != AL_NO_ERROR) | |
8152 { | |
2
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|
8153 ALmixer_SetError("alGenBuffers failed: %s\n", alGetString(error)); |
0 | 8154 Sound_FreeSample(sample); |
8155 free(ret_data->buffer); | |
8156 free(ret_data); | |
8157 return NULL; | |
8158 } | |
6
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Disabled some of the debugging printfs
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diff
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|
8159 /* |
0 | 8160 fprintf(stderr, "Actual rate=%d, desired=%d\n", sample->actual.rate, sample->desired.rate); |
6
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diff
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|
8161 */ |
0 | 8162 /* Now copy the data to the OpenAL buffer */ |
8163 /* We can't just set a pointer because the API needs | |
8164 * its own copy to assist hardware acceleration */ | |
8165 alBufferData(ret_data->buffer[0], | |
8166 TranslateFormat(&sample->desired), | |
8167 sample->buffer, | |
8168 bytes_decoded, | |
8169 sample->desired.rate | |
8170 ); | |
8171 if( (error = alGetError()) != AL_NO_ERROR) | |
8172 { | |
2
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|
8173 ALmixer_SetError("alBufferData failed: %s\n", alGetString(error)); |
0 | 8174 Sound_FreeSample(sample); |
8175 alDeleteBuffers(1, ret_data->buffer); | |
8176 free(ret_data->buffer); | |
8177 free(ret_data); | |
8178 return NULL; | |
8179 } | |
8180 | |
8181 /* We should be done with the sample since it's all | |
8182 * predecoded. So we can free the memory */ | |
8183 /* Need to keep around because Seek() needs it */ | |
8184 | |
8185 /* Additional notes: | |
8186 * We need to keep data around in case Seek() is needed | |
8187 * or other Sound_AudioInfo is needed. | |
8188 * This can either be done by not deleting the sample, | |
8189 * or it can be done by dynamically recreating it | |
8190 * when we need it. | |
8191 * Update: I think now it's up to the user by passing the | |
8192 * access_data flag. If they set the flag, then they get | |
8193 * data callbacks and seek support. If not, then they can | |
8194 * get all that stuff at the expense of keeping extra memory | |
8195 * around. | |
8196 */ | |
8197 if(0 == access_data) | |
8198 { | |
8199 Sound_FreeSample(sample); | |
8200 ret_data->sample = NULL; | |
8201 } | |
8202 | |
8203 /* Else, We keep a copy of the sample around. | |
8204 * so don't do anything. | |
8205 */ | |
8206 #if 0 | |
8207 #if defined(DISABLE_PREDECODED_SEEK) | |
8208 Sound_FreeSample(sample); | |
8209 ret_data->sample = NULL; | |
8210 #elif !defined(DISABLE_SEEK_MEMORY_OPTIMIZATION) | |
8211 Sound_FreeSample(sample); | |
8212 ret_data->sample = NULL; | |
8213 #else | |
8214 /* We keep a copy of the sample around. | |
8215 * so don't do anything. | |
8216 */ | |
8217 #endif | |
8218 #endif | |
8219 | |
8220 /* okay we're done here */ | |
8221 } | |
8222 else | |
8223 { | |
8224 /* Shouldn't get here */ | |
8225 ALmixer_SetError("Unknown decode mode"); | |
8226 Sound_FreeSample(sample); | |
8227 free(ret_data); | |
8228 return NULL; | |
8229 } | |
8230 | |
13
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Added LinkedList class to project.
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|
8231 /* Add the ALmixerData to an internal linked list so we can delete it on |
54aa96ae8912
Added LinkedList class to project.
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|
8232 * quit and avoid messy dangling issues with Sound_Quit |
54aa96ae8912
Added LinkedList class to project.
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|
8233 */ |
54aa96ae8912
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|
8234 LinkedList_PushBack(s_listOfALmixerData, ret_data); |
0 | 8235 return ret_data; |
8236 } | |
8237 | |
8238 | |
8239 /* This will load a sample for us. Most of the uglyness is | |
8240 * error checking and the fact that streamed/predecoded files | |
8241 * must be treated differently. | |
8242 * I don't like the AudioInfo parameter. I removed it once, | |
8243 * but the system will fail on RAW samples because the user | |
8244 * must specify it, so I had to bring it back. | |
8245 * Remember I must close the rwops if there is an error before NewSample() | |
8246 */ | |
2
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|
8247 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 | 8248 { |
8249 Sound_Sample* sample = NULL; | |
8250 Sound_AudioInfo target; | |
8251 | |
8252 /* Initialize target values to defaults | |
8253 * 0 tells SDL_sound to use the "actual" values | |
8254 */ | |
8255 target.channels = 0; | |
8256 target.rate = 0; | |
8257 #if 0 | |
8258 /* This requires my new additions to SDL_sound. It will | |
8259 * convert the sample to the proper endian order. | |
8260 * If the actual is 8-bit, it will do unsigned, if | |
8261 * the actual is 16-bit, it will do signed. | |
8262 * I'm told by Ryan Gordon that OpenAL prefers the signedness | |
8263 * in this way. | |
8264 */ | |
8265 target.format = AUDIO_U8S16SYS; | |
8266 #else | |
8267 target.format = AUDIO_S16SYS; | |
8268 #endif | |
8269 | |
8270 /* Set a default buffersize if needed */ | |
8271 if(0 == buffersize) | |
8272 { | |
8273 buffersize = ALMIXER_DEFAULT_BUFFERSIZE; | |
8274 } | |
8275 | |
8276 sample = Sound_NewSample(rwops, fileext, &target, buffersize); | |
8277 if(NULL == sample) | |
8278 { | |
8279 ALmixer_SetError(Sound_GetError()); | |
8280 return NULL; | |
8281 } | |
8282 | |
1 | 8283 return( DoLoad(sample, buffersize, decode_mode_is_predecoded, max_queue_buffers, num_startup_buffers, access_data)); |
0 | 8284 } |
8285 | |
8286 | |
8287 | |
8288 /* This will load a sample for us from | |
8289 * a file (instead of RWops). Most of the uglyness is | |
8290 * error checking and the fact that streamed/predecoded files | |
8291 * must be treated differently. | |
8292 */ | |
2
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|
8293 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 | 8294 { |
8295 Sound_Sample* sample = NULL; | |
8296 Sound_AudioInfo target; | |
8297 | |
8298 /* Initialize target values to defaults | |
8299 * 0 tells SDL_sound to use the "actual" values | |
8300 */ | |
8301 target.channels = 0; | |
8302 target.rate = 0; | |
8303 | |
8304 #if 0 | |
8305 /* This requires my new additions to SDL_sound. It will | |
8306 * convert the sample to the proper endian order. | |
8307 * If the actual is 8-bit, it will do unsigned, if | |
8308 * the actual is 16-bit, it will do signed. | |
8309 * I'm told by Ryan Gordon that OpenAL prefers the signedness | |
8310 * in this way. | |
8311 */ | |
8312 target.format = AUDIO_U8S16SYS; | |
8313 #else | |
8314 target.format = AUDIO_S16SYS; | |
8315 #endif | |
8316 | |
8317 #if 0 | |
8318 /* Okay, here's a messy hack. The problem is that we need | |
8319 * to convert the sample to have the correct bitdepth, | |
8320 * endian order, and signedness values. | |
8321 * The bit depth is 8 or 16. | |
8322 * The endian order is the native order of the system. | |
8323 * The signedness depends on what the original value | |
8324 * of the sample. Unfortunately, we can't specify these | |
8325 * values until we after we already know what the original | |
8326 * values were for bitdepth and signedness. | |
8327 * So we must open the file once to get the values, | |
8328 * then close it, and then reopen it with the | |
8329 * correct desired target values. | |
8330 * I tried changing the sample->desired field after | |
8331 * the NewSample call, but it had no effect, so | |
8332 * it looks like it must be set on open. | |
8333 */ | |
8334 /* Pick a small buffersize for the first open to not | |
8335 * waste much time allocating memory */ | |
8336 sample = Sound_NewSampleFromFile(filename, NULL, 512); | |
8337 if(NULL == sample) | |
8338 { | |
8339 ALmixer_SetError(Sound_GetError()); | |
8340 return NULL; | |
8341 } | |
8342 | |
8343 bit_depth = GetBitDepth(sample->actual.format); | |
8344 signedness_value = GetSignednessValue(sample->actual.format); | |
8345 if(8 == bit_depth) | |
8346 { | |
8347 /* If 8 bit, then we don't have to worry about | |
8348 * endian issues. We can just use the actual format | |
8349 * value and it should do the right thing | |
8350 */ | |
8351 target.format = sample->actual.format; | |
8352 } | |
8353 else | |
8354 { | |
8355 /* We'll assume it's 16-bit, and if it's not | |
8356 * hopefully SDL_sound will return an error, | |
8357 * or let us convert to 16-bit | |
8358 */ | |
8359 /* Now we need to get the correct signedness */ | |
8360 if(ALMIXER_UNSIGNED_VALUE == signedness_value) | |
8361 { | |
8362 /* Set to Unsigned 16-bit, system endian order */ | |
8363 target.format = AUDIO_U16SYS; | |
8364 } | |
8365 else | |
8366 { | |
8367 /* Again, we'll assume it's Signed 16-bit system order | |
8368 * or force the conversion and hope it works out | |
8369 */ | |
8370 target.format = AUDIO_S16SYS; | |
8371 } | |
8372 } | |
8373 | |
8374 /* Now we have the correct info. We need to close and reopen */ | |
8375 Sound_FreeSample(sample); | |
8376 #endif | |
8377 | |
8378 sample = Sound_NewSampleFromFile(filename, &target, buffersize); | |
8379 if(NULL == sample) | |
8380 { | |
8381 ALmixer_SetError(Sound_GetError()); | |
8382 return NULL; | |
8383 } | |
8384 | |
6
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Eric Wing <ewing . public |-at-| gmail . com>
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3
diff
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|
8385 /* |
0 | 8386 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>
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3
diff
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|
8387 */ |
1 | 8388 return( DoLoad(sample, buffersize, decode_mode_is_predecoded, max_queue_buffers, num_startup_buffers, access_data)); |
0 | 8389 } |
8390 | |
8391 | |
8392 /* This is a back door for RAW samples or if you need the | |
8393 * AudioInfo field. Use at your own risk. | |
8394 */ | |
2
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diff
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|
8395 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 | 8396 { |
8397 Sound_Sample* sample = NULL; | |
1 | 8398 Sound_AudioInfo sound_desired; |
8399 /* Rather than copying the data from struct to struct, I could just | |
8400 * cast the thing since the structs are meant to be identical. | |
8401 * But if SDL_sound changes it's implementation, bad things | |
8402 * will probably happen. (Or if I change my implementation and | |
8403 * forget about the cast, same bad scenario.) Since this is a load | |
8404 * function, performance of this is negligible. | |
8405 */ | |
8406 if(NULL == desired) | |
8407 { | |
8408 sample = Sound_NewSample(rwops, fileext, NULL, buffersize); | |
8409 } | |
8410 else | |
8411 { | |
8412 sound_desired.format = desired->format; | |
8413 sound_desired.channels = desired->channels; | |
8414 sound_desired.rate = desired->rate; | |
8415 sample = Sound_NewSample(rwops, fileext, &sound_desired, buffersize); | |
8416 } | |
0 | 8417 if(NULL == sample) |
8418 { | |
8419 ALmixer_SetError(Sound_GetError()); | |
8420 return NULL; | |
8421 } | |
1 | 8422 return( DoLoad(sample, buffersize, decode_mode_is_predecoded, max_queue_buffers, num_startup_buffers, access_data)); |
0 | 8423 } |
8424 | |
8425 | |
8426 | |
8427 | |
8428 /* This is a back door for RAW samples or if you need the | |
8429 * AudioInfo field. Use at your own risk. | |
8430 */ | |
2
279d0427ef26
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Eric Wing <ewing . public |-at-| gmail . com>
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1
diff
changeset
|
8431 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 | 8432 { |
8433 Sound_Sample* sample = NULL; | |
1 | 8434 Sound_AudioInfo sound_desired; |
8435 /* Rather than copying the data from struct to struct, I could just | |
8436 * cast the thing since the structs are meant to be identical. | |
8437 * But if SDL_sound changes it's implementation, bad things | |
8438 * will probably happen. (Or if I change my implementation and | |
8439 * forget about the cast, same bad scenario.) Since this is a load | |
8440 * function, performance of this is negligible. | |
8441 */ | |
8442 if(NULL == desired) | |
8443 { | |
8444 sample = Sound_NewSampleFromFile(filename, NULL, buffersize); | |
8445 } | |
8446 else | |
8447 { | |
8448 sound_desired.format = desired->format; | |
8449 sound_desired.channels = desired->channels; | |
8450 sound_desired.rate = desired->rate; | |
8451 sample = Sound_NewSampleFromFile(filename, &sound_desired, buffersize); | |
8452 } | |
8453 | |
0 | 8454 if(NULL == sample) |
8455 { | |
8456 ALmixer_SetError(Sound_GetError()); | |
8457 return NULL; | |
8458 } | |
1 | 8459 return( DoLoad(sample, buffersize, decode_mode_is_predecoded, max_queue_buffers, num_startup_buffers, access_data)); |
0 | 8460 } |
8461 | |
8462 | |
8463 | |
8464 | |
8465 void ALmixer_FreeData(ALmixer_Data* data) | |
8466 { | |
8467 ALenum error; | |
8468 if(NULL == data) | |
8469 { | |
8470 return; | |
8471 } | |
22
58f03008ea05
- Added Seek APIs
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16
diff
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|
8472 |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
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diff
changeset
|
8473 /* Bypass if in interruption event */ |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
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16
diff
changeset
|
8474 if(NULL == alcGetCurrentContext()) |
58f03008ea05
- Added Seek APIs
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16
diff
changeset
|
8475 { |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
parents:
16
diff
changeset
|
8476 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>
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16
diff
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|
8477 return; |
58f03008ea05
- Added Seek APIs
Eric Wing <ewing . public |-at-| gmail . com>
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16
diff
changeset
|
8478 } |
0 | 8479 |
8480 if(data->decoded_all) | |
8481 { | |
8482 /* If access_data was enabled, then the Sound_Sample* | |
8483 * still exists. We need to free it | |
8484 */ | |
8485 if(data->sample != NULL) | |
8486 { | |
8487 Sound_FreeSample(data->sample); | |
8488 } | |
8489 alDeleteBuffers(1, data->buffer); | |
22
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diff
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|
8490 if((error = alGetError()) != AL_NO_ERROR) |
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- Added Seek APIs
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16
diff
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|
8491 { |
58f03008ea05
- Added Seek APIs
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diff
changeset
|
8492 fprintf(stderr, "ALmixer_FreeData: alDeleteBuffers failed. %s\n", alGetString(error)); |
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- Added Seek APIs
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diff
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|
8493 } |
0 | 8494 } |
8495 else | |
8496 { | |
2
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diff
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|
8497 ALuint i; |
0 | 8498 |
8499 /* Delete buffer copies if access_data was enabled */ | |
8500 if(data->buffer_map_list != NULL) | |
8501 { | |
8502 for(i=0; i<data->max_queue_buffers; i++) | |
8503 { | |
8504 free(data->buffer_map_list[i].data); | |
8505 } | |
8506 free(data->buffer_map_list); | |
8507 } | |
8508 if(data->circular_buffer_queue != NULL) | |
8509 { | |
8510 CircularQueueUnsignedInt_FreeQueue(data->circular_buffer_queue); | |
8511 } | |
8512 | |
8513 Sound_FreeSample(data->sample); | |
8514 alDeleteBuffers(data->max_queue_buffers, data->buffer); | |
22
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|
8515 if((error = alGetError()) != AL_NO_ERROR) |
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diff
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|
8516 { |
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diff
changeset
|
8517 fprintf(stderr, "ALmixer_FreeData: alDeleteBuffers failed. %s\n", alGetString(error)); |
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|
8518 } |
0 | 8519 } |
8520 free(data->buffer); | |
13
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diff
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|
8521 |
54aa96ae8912
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diff
changeset
|
8522 LinkedList_Remove(s_listOfALmixerData, |
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Added LinkedList class to project.
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12
diff
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|
8523 LinkedList_Find(s_listOfALmixerData, data, NULL) |
54aa96ae8912
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diff
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|
8524 ); |
54aa96ae8912
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diff
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|
8525 |
0 | 8526 free(data); |
8527 } | |
8528 | |
2
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diff
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|
8529 ALint ALmixer_GetTotalTime(ALmixer_Data* data) |
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1
diff
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|
8530 { |
279d0427ef26
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diff
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|
8531 if(NULL == data) |
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diff
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|
8532 { |
279d0427ef26
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diff
changeset
|
8533 return -1; |
279d0427ef26
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diff
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|
8534 } |
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diff
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|
8535 |
0 | 8536 return data->total_time; |
8537 } | |
8538 | |
8539 /* This function will look up the source for the corresponding channel */ | |
8540 /* Must return 0 on error instead of -1 because of unsigned int */ | |
2
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diff
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|
8541 ALuint ALmixer_GetSource(ALint channel) |
0 | 8542 { |
8543 ALuint retval; | |
2
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diff
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|
8544 #ifdef ENABLE_ALMIXER_THREADS |
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diff
changeset
|
8545 SDL_LockMutex(s_simpleLock); |
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8546 #endif |
0 | 8547 retval = Internal_GetSource(channel); |
2
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8548 #ifdef ENABLE_ALMIXER_THREADS |
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8549 SDL_UnlockMutex(s_simpleLock); |
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|
8550 #endif |
0 | 8551 return retval; |
8552 } | |
8553 | |
8554 /* This function will look up the channel for the corresponding source */ | |
2
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|
8555 ALint ALmixer_GetChannel(ALuint source) |
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|
8556 { |
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|
8557 ALint retval; |
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8558 #ifdef ENABLE_ALMIXER_THREADS |
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|
8559 SDL_LockMutex(s_simpleLock); |
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|
8560 #endif |
0 | 8561 retval = Internal_GetChannel(source); |
2
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|
8562 #ifdef ENABLE_ALMIXER_THREADS |
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|
8563 SDL_UnlockMutex(s_simpleLock); |
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|
8564 #endif |
0 | 8565 return retval; |
8566 } | |
8567 | |
2
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|
8568 ALint ALmixer_FindFreeChannel(ALint start_channel) |
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|
8569 { |
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|
8570 ALint retval; |
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|
8571 #ifdef ENABLE_ALMIXER_THREADS |
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|
8572 SDL_LockMutex(s_simpleLock); |
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|
8573 #endif |
0 | 8574 retval = Internal_FindFreeChannel(start_channel); |
2
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8575 #ifdef ENABLE_ALMIXER_THREADS |
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|
8576 SDL_UnlockMutex(s_simpleLock); |
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8577 #endif |
0 | 8578 return retval; |
8579 } | |
8580 | |
8581 | |
8582 | |
8583 /* API update function. | |
8584 * It should return the number of buffers that were | |
8585 * queued during the call. The value might be | |
8586 * used to guage how long you might wait to | |
8587 * call the next update loop in case you are worried | |
8588 * about preserving CPU cycles. The idea is that | |
8589 * when a buffer is queued, there was probably some | |
8590 * CPU intensive looping which took awhile. | |
8591 * It's mainly provided as a convenience. | |
2
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8592 * Timing the call with ALmixer_GetTicks() would produce |
0 | 8593 * more accurate information. |
8594 * Returns a negative value if there was an error, | |
8595 * the value being the number of errors. | |
8596 */ | |
2
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|
8597 ALint ALmixer_Update() |
0 | 8598 { |
8599 #ifdef ENABLE_ALMIXER_THREADS | |
8600 /* The thread will handle all updates by itself. | |
8601 * Don't allow the user to explicitly call update. | |
8602 */ | |
8603 return 0; | |
8604 #else | |
8605 return( Update_ALmixer(NULL) ); | |
8606 #endif | |
8607 } | |
8608 | |
8609 | |
8610 | |
2
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8611 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) |
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|
8612 { |
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|
8613 #ifdef ENABLE_ALMIXER_THREADS |
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|
8614 SDL_LockMutex(s_simpleLock); |
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|
8615 #endif |
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|
8616 Channel_Done_Callback = playback_finished_callback; |
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|
8617 Channel_Done_Callback_Userdata = user_data; |
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8618 #ifdef ENABLE_ALMIXER_THREADS |
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|
8619 SDL_UnlockMutex(s_simpleLock); |
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|
8620 #endif |
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|
8621 } |
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8622 |
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8623 |
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|
8624 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) |
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|
8625 { |
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|
8626 #ifdef ENABLE_ALMIXER_THREADS |
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|
8627 SDL_LockMutex(s_simpleLock); |
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|
8628 #endif |
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|
8629 Channel_Data_Callback = playback_data_callback; |
1 | 8630 Channel_Data_Callback_Userdata = user_data; |
2
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8631 #ifdef ENABLE_ALMIXER_THREADS |
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|
8632 SDL_UnlockMutex(s_simpleLock); |
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8633 #endif |
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|
8634 } |
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|
8635 |
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|
8636 |
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8637 |
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8638 |
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8639 |
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|
8640 ALint ALmixer_PlayChannelTimed(ALint channel, ALmixer_Data* data, ALint loops, ALint ticks) |
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|
8641 { |
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|
8642 ALint retval; |
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|
8643 #ifdef ENABLE_ALMIXER_THREADS |
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|
8644 SDL_LockMutex(s_simpleLock); |
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|
8645 #endif |
0 | 8646 retval = Internal_PlayChannelTimed(channel, data, loops, ticks); |
2
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|
8647 #ifdef ENABLE_ALMIXER_THREADS |
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|
8648 SDL_UnlockMutex(s_simpleLock); |
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|
8649 #endif |
0 | 8650 return retval; |
8651 } | |
8652 | |
8653 | |
8654 /* In case the user wants to specify a source instead of a channel, | |
8655 * they may use this function. This function will look up the | |
8656 * source-to-channel map, and convert the call into a | |
8657 * PlayChannelTimed() function call. | |
8658 * Returns the channel it's being played on. | |
8659 * Note: If you are prefer this method, then you need to be careful | |
8660 * about using PlayChannel, particularly if you request the | |
8661 * first available channels because source and channels have | |
8662 * a one-to-one mapping in this API. It is quite easy for | |
8663 * a channel/source to already be in use because of this. | |
8664 * In this event, an error message will be returned to you. | |
8665 */ | |
2
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|
8666 ALuint ALmixer_PlaySourceTimed(ALuint source, ALmixer_Data* data, ALint loops, ALint ticks) |
0 | 8667 { |
8668 ALuint retval; | |
2
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|
8669 #ifdef ENABLE_ALMIXER_THREADS |
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|
8670 SDL_LockMutex(s_simpleLock); |
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|
8671 #endif |
0 | 8672 retval = Internal_PlaySourceTimed(source, data, loops, ticks); |
2
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|
8673 #ifdef ENABLE_ALMIXER_THREADS |
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|
8674 SDL_UnlockMutex(s_simpleLock); |
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|
8675 #endif |
0 | 8676 return retval; |
8677 } | |
8678 | |
8679 | |
8680 /* Will return the number of channels halted | |
8681 * or 0 for error | |
8682 */ | |
2
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|
8683 ALint ALmixer_HaltChannel(ALint channel) |
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|
8684 { |
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|
8685 ALint retval; |
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|
8686 #ifdef ENABLE_ALMIXER_THREADS |
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|
8687 SDL_LockMutex(s_simpleLock); |
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|
8688 #endif |
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|
8689 retval = Internal_HaltChannel(channel, AL_FALSE); |
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|
8690 #ifdef ENABLE_ALMIXER_THREADS |
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|
8691 SDL_UnlockMutex(s_simpleLock); |
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|
8692 #endif |
0 | 8693 return retval; |
8694 } | |
8695 | |
8696 /* Will return the number of channels halted | |
8697 * or 0 for error | |
8698 */ | |
2
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8699 ALint ALmixer_HaltSource(ALuint source) |
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|
8700 { |
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|
8701 ALint retval; |
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|
8702 #ifdef ENABLE_ALMIXER_THREADS |
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|
8703 SDL_LockMutex(s_simpleLock); |
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|
8704 #endif |
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|
8705 retval = Internal_HaltSource(source, AL_FALSE); |
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|
8706 #ifdef ENABLE_ALMIXER_THREADS |
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|
8707 SDL_UnlockMutex(s_simpleLock); |
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|
8708 #endif |
0 | 8709 return retval; |
8710 } | |
8711 | |
8712 | |
8713 /* This will rewind the SDL_Sound sample for streamed | |
8714 * samples and start buffering up the data for the next | |
8715 * playback. This may require samples to be halted | |
8716 */ | |
12
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|
8717 ALboolean ALmixer_RewindData(ALmixer_Data* data) |
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|
8718 { |
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|
8719 ALboolean retval; |
2
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|
8720 #ifdef ENABLE_ALMIXER_THREADS |
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|
8721 SDL_LockMutex(s_simpleLock); |
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|
8722 #endif |
0 | 8723 retval = Internal_RewindData(data); |
2
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|
8724 #ifdef ENABLE_ALMIXER_THREADS |
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|
8725 SDL_UnlockMutex(s_simpleLock); |
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|
8726 #endif |
0 | 8727 return retval; |
8728 } | |
8729 | |
2
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|
8730 ALint ALmixer_RewindChannel(ALint channel) |
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|
8731 { |
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|
8732 ALint retval; |
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|
8733 #ifdef ENABLE_ALMIXER_THREADS |
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|
8734 SDL_LockMutex(s_simpleLock); |
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|
8735 #endif |
0 | 8736 retval = Internal_RewindChannel(channel); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8737 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8738 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8739 #endif |
0 | 8740 return retval; |
8741 } | |
8742 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8743 ALint ALmixer_RewindSource(ALuint source) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8744 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8745 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8746 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8747 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8748 #endif |
0 | 8749 retval = Internal_RewindSource(source); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8750 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8751 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8752 #endif |
0 | 8753 return retval; |
8754 } | |
8755 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8756 ALint ALmixer_PauseChannel(ALint channel) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8757 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8758 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8759 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8760 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8761 #endif |
0 | 8762 retval = Internal_PauseChannel(channel); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8763 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8764 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8765 #endif |
0 | 8766 return retval; |
8767 } | |
8768 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8769 ALint ALmixer_PauseSource(ALuint source) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8770 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8771 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8772 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8773 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8774 #endif |
0 | 8775 retval = Internal_PauseSource(source); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8776 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8777 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8778 #endif |
0 | 8779 return retval; |
8780 } | |
8781 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8782 ALint ALmixer_ResumeChannel(ALint channel) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8783 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8784 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8785 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8786 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8787 #endif |
0 | 8788 retval = Internal_ResumeChannel(channel); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8789 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8790 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8791 #endif |
0 | 8792 return retval; |
8793 } | |
8794 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8795 ALint ALmixer_ResumeSource(ALuint source) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8796 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8797 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8798 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8799 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8800 #endif |
0 | 8801 retval = Internal_ResumeSource(source); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8802 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8803 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8804 #endif |
0 | 8805 return retval; |
8806 } | |
8807 | |
8808 /* Might consider setting eof to 0 as a "feature" | |
8809 * This will allow seek to end to stay there because | |
8810 * Play automatically rewinds if at the end */ | |
12
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
8811 ALboolean ALmixer_SeekData(ALmixer_Data* data, ALuint msec) |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
8812 { |
bfe90b4f3d87
Bug fixes to FadeIn.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
10
diff
changeset
|
8813 ALboolean retval; |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8814 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8815 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8816 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8817 retval = Internal_SeekData(data, msec); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8818 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8819 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8820 #endif |
0 | 8821 return retval; |
8822 } | |
8823 | |
20
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8824 ALint ALmixer_SeekChannel(ALint channel, ALuint msec) |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8825 { |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8826 ALint retval; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8827 #ifdef ENABLE_ALMIXER_THREADS |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8828 SDL_LockMutex(s_simpleLock); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8829 #endif |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8830 retval = Internal_SeekChannel(channel, msec); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8831 #ifdef ENABLE_ALMIXER_THREADS |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8832 SDL_UnlockMutex(s_simpleLock); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8833 #endif |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8834 return retval; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8835 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8836 |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8837 ALint ALmixer_SeekSource(ALuint source, ALuint msec) |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8838 { |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8839 ALint retval; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8840 #ifdef ENABLE_ALMIXER_THREADS |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8841 SDL_LockMutex(s_simpleLock); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8842 #endif |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8843 retval = Internal_SeekSource(source, msec); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8844 #ifdef ENABLE_ALMIXER_THREADS |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8845 SDL_UnlockMutex(s_simpleLock); |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8846 #endif |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8847 return retval; |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8848 } |
9365e714fc4b
Added SeekChannel, SeekSource.
Eric Wing <ewing@anscamobile.com>
parents:
16
diff
changeset
|
8849 |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8850 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
|
8851 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8852 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8853 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8854 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8855 #endif |
0 | 8856 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
|
8857 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8858 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8859 #endif |
0 | 8860 return retval; |
8861 } | |
8862 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8863 ALuint ALmixer_FadeInSourceTimed(ALuint source, ALmixer_Data* data, ALint loops, ALuint fade_ticks, ALint expire_ticks) |
0 | 8864 { |
8865 ALuint retval; | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8866 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8867 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8868 #endif |
0 | 8869 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
|
8870 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8871 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8872 #endif |
0 | 8873 return retval; |
8874 } | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8875 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8876 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
|
8877 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8878 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8879 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8880 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8881 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8882 retval = Internal_FadeOutChannel(channel, ticks); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8883 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8884 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8885 #endif |
0 | 8886 return retval; |
8887 } | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8888 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8889 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
|
8890 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8891 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8892 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8893 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8894 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8895 retval = Internal_FadeOutSource(source, ticks); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8896 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8897 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8898 #endif |
0 | 8899 return retval; |
8900 } | |
8901 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8902 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
|
8903 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8904 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8905 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8906 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8907 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8908 retval = Internal_FadeChannel(channel, ticks, volume); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8909 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8910 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8911 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8912 return retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8913 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8914 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8915 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
|
8916 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8917 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8918 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8919 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8920 #endif |
0 | 8921 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
|
8922 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8923 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8924 #endif |
0 | 8925 return retval; |
8926 } | |
8927 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8928 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8929 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
|
8930 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8931 ALboolean retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8932 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8933 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8934 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8935 retval = Internal_SetVolumeChannel(channel, volume); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8936 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8937 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8938 #endif |
0 | 8939 return retval; |
8940 } | |
8941 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8942 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
|
8943 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8944 ALboolean retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8945 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8946 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8947 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8948 retval = Internal_SetVolumeSource(source, volume); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8949 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8950 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8951 #endif |
0 | 8952 return retval; |
8953 } | |
8954 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8955 ALfloat ALmixer_GetVolumeChannel(ALint channel) |
0 | 8956 { |
8957 ALfloat retval; | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8958 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8959 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8960 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8961 retval = Internal_GetVolumeChannel(channel); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8962 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8963 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8964 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8965 return retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8966 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8967 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8968 ALfloat ALmixer_GetVolumeSource(ALuint source) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8969 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8970 ALfloat retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8971 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8972 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8973 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8974 retval = Internal_GetVolumeSource(source); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8975 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8976 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8977 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8978 return retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8979 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8980 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8981 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
|
8982 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8983 ALboolean retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8984 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8985 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8986 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8987 retval = Internal_SetMaxVolumeChannel(channel, volume); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8988 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8989 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8990 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8991 return retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8992 } |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8993 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8994 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
|
8995 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8996 ALboolean retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8997 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8998 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
8999 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9000 retval = Internal_SetMaxVolumeSource(source, volume); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9001 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9002 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9003 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9004 return retval; |
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 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9007 ALfloat ALmixer_GetMaxVolumeChannel(ALint channel) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9008 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9009 ALfloat retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9010 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9011 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9012 #endif |
0 | 9013 retval = Internal_GetMaxVolumeChannel(channel); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9014 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9015 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9016 #endif |
0 | 9017 return retval; |
9018 } | |
9019 | |
9020 ALfloat ALmixer_GetMaxVolumeSource(ALuint source) | |
9021 { | |
9022 ALfloat retval; | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9023 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9024 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9025 #endif |
0 | 9026 retval = Internal_GetMaxVolumeSource(source); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9027 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9028 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9029 #endif |
0 | 9030 return retval; |
9031 } | |
9032 | |
9033 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9034 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
|
9035 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9036 ALboolean retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9037 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9038 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9039 #endif |
0 | 9040 retval = Internal_SetMinVolumeChannel(channel, volume); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9041 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9042 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9043 #endif |
0 | 9044 return retval; |
9045 } | |
9046 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9047 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
|
9048 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9049 ALboolean retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9050 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9051 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9052 #endif |
0 | 9053 retval = Internal_SetMinVolumeSource(source, volume); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9054 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9055 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9056 #endif |
0 | 9057 return retval; |
9058 } | |
9059 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9060 ALfloat ALmixer_GetMinVolumeChannel(ALint channel) |
0 | 9061 { |
9062 ALfloat retval; | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9063 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9064 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9065 #endif |
0 | 9066 retval = Internal_GetMinVolumeChannel(channel); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9067 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9068 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9069 #endif |
0 | 9070 return retval; |
9071 } | |
9072 | |
9073 ALfloat ALmixer_GetMinVolumeSource(ALuint source) | |
9074 { | |
9075 ALfloat retval; | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9076 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9077 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9078 #endif |
0 | 9079 retval = Internal_GetMinVolumeSource(source); |
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_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9082 #endif |
0 | 9083 return retval; |
9084 } | |
9085 | |
9086 | |
9087 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9088 ALboolean ALmixer_SetMasterVolume(ALfloat volume) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9089 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9090 ALboolean retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9091 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9092 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9093 #endif |
0 | 9094 retval = Internal_SetMasterVolume(volume); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9095 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9096 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9097 #endif |
0 | 9098 return retval; |
9099 } | |
9100 | |
9101 ALfloat ALmixer_GetMasterVolume() | |
9102 { | |
9103 ALfloat retval; | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9104 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9105 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9106 #endif |
0 | 9107 retval = Internal_GetMasterVolume(); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9108 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9109 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9110 #endif |
0 | 9111 return retval; |
9112 } | |
9113 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9114 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
|
9115 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9116 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9117 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9118 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9119 #endif |
0 | 9120 retval = Internal_ExpireChannel(channel, ticks); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9121 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9122 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9123 #endif |
0 | 9124 return retval; |
9125 } | |
9126 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9127 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
|
9128 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9129 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9130 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9131 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9132 #endif |
0 | 9133 retval = Internal_ExpireSource(source, ticks); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9134 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9135 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9136 #endif |
0 | 9137 return retval; |
9138 } | |
9139 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9140 ALint ALmixer_IsActiveChannel(ALint channel) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9141 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9142 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9143 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9144 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9145 #endif |
0 | 9146 retval = Internal_QueryChannel(channel); |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9147 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9148 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9149 #endif |
0 | 9150 return retval; |
9151 } | |
9152 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9153 ALint ALmixer_IsActiveSource(ALuint source) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9154 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9155 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9156 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9157 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9158 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9159 retval = Internal_QuerySource(source); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9160 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9161 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9162 #endif |
0 | 9163 return retval; |
9164 } | |
9165 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9166 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9167 ALint ALmixer_IsPlayingChannel(ALint channel) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9168 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9169 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9170 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9171 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9172 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9173 retval = Internal_PlayingChannel(channel); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9174 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9175 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9176 #endif |
0 | 9177 return retval; |
9178 } | |
9179 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9180 ALint ALmixer_IsPlayingSource(ALuint source) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9181 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9182 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9183 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9184 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9185 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9186 retval = Internal_PlayingSource(source); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9187 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9188 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9189 #endif |
0 | 9190 return retval; |
9191 } | |
9192 | |
2
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9193 |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9194 ALint ALmixer_IsPausedChannel(ALint channel) |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9195 { |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9196 ALint retval; |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9197 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9198 SDL_LockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9199 #endif |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9200 retval = Internal_PausedChannel(channel); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9201 #ifdef ENABLE_ALMIXER_THREADS |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9202 SDL_UnlockMutex(s_simpleLock); |
279d0427ef26
Overhaul prep for first public release.
Eric Wing <ewing . public |-at-| gmail . com>
parents:
1
diff
changeset
|
9203 #endif |
0 | 9204 return retval; |
9205 } | |
9206 | |
2
279d0427ef26
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9207 ALint ALmixer_IsPausedSource(ALuint source) |
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9208 { |
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9209 ALint retval; |
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9210 #ifdef ENABLE_ALMIXER_THREADS |
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9211 SDL_LockMutex(s_simpleLock); |
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9212 #endif |
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9213 retval = Internal_PausedSource(source); |
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9214 #ifdef ENABLE_ALMIXER_THREADS |
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9215 SDL_UnlockMutex(s_simpleLock); |
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9216 #endif |
0 | 9217 return retval; |
9218 } | |
9219 | |
2
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9220 |
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9221 ALuint ALmixer_CountAllFreeChannels() |
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9222 { |
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9223 ALuint retval; |
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9224 #ifdef ENABLE_ALMIXER_THREADS |
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|
9225 SDL_LockMutex(s_simpleLock); |
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9226 #endif |
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9227 retval = Internal_CountAllFreeChannels(); |
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9228 #ifdef ENABLE_ALMIXER_THREADS |
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9229 SDL_UnlockMutex(s_simpleLock); |
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9230 #endif |
0 | 9231 return retval; |
9232 } | |
9233 | |
2
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9234 ALuint ALmixer_CountUnreservedFreeChannels() |
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|
9235 { |
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9236 ALuint retval; |
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|
9237 #ifdef ENABLE_ALMIXER_THREADS |
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9238 SDL_LockMutex(s_simpleLock); |
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9239 #endif |
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9240 retval = Internal_CountUnreservedFreeChannels(); |
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9241 #ifdef ENABLE_ALMIXER_THREADS |
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|
9242 SDL_UnlockMutex(s_simpleLock); |
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|
9243 #endif |
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9244 return retval; |
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9245 } |
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9246 |
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9247 ALuint ALmixer_CountAllUsedChannels() |
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|
9248 { |
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9249 ALuint retval; |
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9250 #ifdef ENABLE_ALMIXER_THREADS |
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9251 SDL_LockMutex(s_simpleLock); |
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9252 #endif |
0 | 9253 retval = Internal_CountAllUsedChannels(); |
2
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9254 #ifdef ENABLE_ALMIXER_THREADS |
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9255 SDL_UnlockMutex(s_simpleLock); |
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9256 #endif |
0 | 9257 return retval; |
9258 } | |
9259 | |
2
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9260 ALuint ALmixer_CountUnreservedUsedChannels() |
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|
9261 { |
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9262 ALuint retval; |
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9263 #ifdef ENABLE_ALMIXER_THREADS |
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9264 SDL_LockMutex(s_simpleLock); |
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|
9265 #endif |
0 | 9266 retval = Internal_CountUnreservedUsedChannels(); |
2
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9267 #ifdef ENABLE_ALMIXER_THREADS |
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9268 SDL_UnlockMutex(s_simpleLock); |
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9269 #endif |
0 | 9270 return retval; |
9271 } | |
9272 | |
2
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9273 ALboolean ALmixer_IsPredecoded(ALmixer_Data* data) |
1 | 9274 { |
9275 if(NULL == data) | |
9276 { | |
2
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9277 return AL_FALSE; |
1 | 9278 } |
9279 return data->decoded_all; | |
9280 } | |
9281 | |
2
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9282 ALboolean ALmixer_CompiledWithThreadBackend() |
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9283 { |
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9284 #ifdef ENABLE_ALMIXER_THREADS |
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9285 return AL_TRUE; |
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9286 #else |
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9287 return AL_FALSE; |
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9288 #endif |
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9289 } |
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9290 |
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9291 |
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9292 |
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9293 |