Mercurial > sdl-ios-xcode
annotate src/audio/nto/SDL_nto_audio.c @ 1348:40d0975c1769
Date: Mon, 6 Feb 2006 11:41:04 -0500
From: "mystml@adinet.com.uy"
Subject: [SDL] ALT-F4 using DirectX
My game isn't getting SDL_QUIT when I press ALT-F4 using the DirectX
driver; it does get SDL_QUIT when I press the red X in the window.
I tracked this down to DX5_HandleMessage() in SDL_dx5events.c;
WM_SYSKEYDOWN is being trapped and ignored which causes Windows not to post
a WM_CLOSE, hence no SDL_QUIT is being generated.
The relevant code is this :
/* The keyboard is handled via DirectInput */
case WM_SYSKEYUP:
case WM_SYSKEYDOWN:
case WM_KEYUP:
case WM_KEYDOWN: {
/* Ignore windows keyboard messages */;
}
return(0);
If I comment the WM_SYSKEYDOWN case, it falls through DefWindowProc() and
ALT-F4 starts working again.
I'm not sure about the best way to fix this. One option is handling ALT-F4
as a particular case somehow, but doesn't sound good. Another option would
be to handle WM_SYSKEYDOWN separately and breaking instead of returning 0,
so processing falls through and goes to DefWindowProc which does The Right
Thing (TM). This seems to be the minimal change that makes ALT-F4 work and
normal keyboard input continues to work.
Does this sound reasonable? Am I overlooking anything? Do I submit a patch?
--Gabriel
author | Sam Lantinga <slouken@libsdl.org> |
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date | Wed, 08 Feb 2006 17:19:43 +0000 |
parents | 604d73db6802 |
children | c71e05b4dc2e |
rev | line source |
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0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2004 Sam Lantinga |
0 | 4 |
5 This library is free software; you can redistribute it and/or | |
6 modify it under the terms of the GNU Library General Public | |
7 License as published by the Free Software Foundation; either | |
8 version 2 of the License, or (at your option) any later version. | |
9 | |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 Library General Public License for more details. | |
14 | |
15 You should have received a copy of the GNU Library General Public | |
16 License along with this library; if not, write to the Free | |
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | |
19 Sam Lantinga | |
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20 slouken@libsdl.org |
0 | 21 */ |
22 | |
23 #include <errno.h> | |
24 #include <unistd.h> | |
25 #include <fcntl.h> | |
26 #include <signal.h> | |
27 #include <sys/types.h> | |
28 #include <sys/time.h> | |
29 #include <sched.h> | |
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30 #include <sys/select.h> |
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31 #include <sys/neutrino.h> |
0 | 32 #include <sys/asoundlib.h> |
33 | |
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34 #include "SDL_stdlib.h" |
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35 #include "SDL_string.h" |
0 | 36 #include "SDL_audio.h" |
37 #include "SDL_error.h" | |
38 #include "SDL_audiomem.h" | |
39 #include "SDL_audio_c.h" | |
40 #include "SDL_timer.h" | |
41 #include "SDL_nto_audio.h" | |
42 | |
43 /* The tag name used by NTO audio */ | |
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44 #define DRIVER_NAME "qsa-nto" |
0 | 45 |
46 /* default channel communication parameters */ | |
47 #define DEFAULT_CPARAMS_RATE 22050 | |
48 #define DEFAULT_CPARAMS_VOICES 1 | |
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49 /* FIXME: need to add in the near future flexible logic with frag_size and frags count */ |
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50 #define DEFAULT_CPARAMS_FRAG_SIZE 4096 |
0 | 51 #define DEFAULT_CPARAMS_FRAGS_MIN 1 |
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52 #define DEFAULT_CPARAMS_FRAGS_MAX 1 |
0 | 53 |
54 /* Open the audio device for playback, and don't block if busy */ | |
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55 #define OPEN_FLAGS SND_PCM_OPEN_PLAYBACK |
0 | 56 |
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57 #define QSA_NO_WORKAROUNDS 0x00000000 |
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58 #define QSA_MMAP_WORKAROUND 0x00000001 |
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59 |
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60 struct BuggyCards |
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61 { |
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62 char* cardname; |
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63 unsigned long bugtype; |
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64 }; |
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65 |
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66 #define QSA_WA_CARDS 3 |
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67 |
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68 struct BuggyCards buggycards[QSA_WA_CARDS]= |
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69 { |
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70 {"Sound Blaster Live!", QSA_MMAP_WORKAROUND}, |
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71 {"Vortex 8820", QSA_MMAP_WORKAROUND}, |
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72 {"Vortex 8830", QSA_MMAP_WORKAROUND}, |
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73 }; |
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74 |
0 | 75 /* Audio driver functions */ |
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76 static void NTO_ThreadInit(_THIS); |
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77 static int NTO_OpenAudio(_THIS, SDL_AudioSpec* spec); |
0 | 78 static void NTO_WaitAudio(_THIS); |
79 static void NTO_PlayAudio(_THIS); | |
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80 static Uint8* NTO_GetAudioBuf(_THIS); |
0 | 81 static void NTO_CloseAudio(_THIS); |
82 | |
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83 /* card names check to apply the workarounds */ |
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84 static int NTO_CheckBuggyCards(_THIS, unsigned long checkfor) |
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85 { |
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86 char scardname[33]; |
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87 int it; |
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88 |
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89 if (snd_card_get_name(cardno, scardname, 32)<0) |
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90 { |
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91 return 0; |
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92 } |
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93 |
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94 for (it=0; it<QSA_WA_CARDS; it++) |
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95 { |
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96 if (SDL_strcmp(buggycards[it].cardname, scardname)==0) |
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97 { |
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98 if (buggycards[it].bugtype==checkfor) |
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99 { |
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100 return 1; |
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101 } |
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102 } |
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103 } |
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104 |
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105 return 0; |
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106 } |
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107 |
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108 static void NTO_ThreadInit(_THIS) |
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109 { |
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110 int status; |
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111 struct sched_param param; |
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112 |
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113 /* increasing default 10 priority to 25 to avoid jerky sound */ |
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114 status=SchedGet(0, 0, ¶m); |
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115 param.sched_priority=param.sched_curpriority+15; |
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116 status=SchedSet(0, 0, SCHED_NOCHANGE, ¶m); |
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117 } |
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119 /* PCM transfer channel parameters initialize function */ | |
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120 static void NTO_InitAudioParams(snd_pcm_channel_params_t* cpars) |
0 | 121 { |
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122 SDL_memset(cpars, 0, sizeof(snd_pcm_channel_params_t)); |
0 | 123 |
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124 cpars->channel = SND_PCM_CHANNEL_PLAYBACK; |
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125 cpars->mode = SND_PCM_MODE_BLOCK; |
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126 cpars->start_mode = SND_PCM_START_DATA; |
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127 cpars->stop_mode = SND_PCM_STOP_STOP; |
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128 cpars->format.format = SND_PCM_SFMT_S16_LE; |
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129 cpars->format.interleave = 1; |
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130 cpars->format.rate = DEFAULT_CPARAMS_RATE; |
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131 cpars->format.voices = DEFAULT_CPARAMS_VOICES; |
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132 cpars->buf.block.frag_size = DEFAULT_CPARAMS_FRAG_SIZE; |
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133 cpars->buf.block.frags_min = DEFAULT_CPARAMS_FRAGS_MIN; |
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134 cpars->buf.block.frags_max = DEFAULT_CPARAMS_FRAGS_MAX; |
0 | 135 } |
136 | |
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137 static int NTO_AudioAvailable(void) |
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138 { |
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139 /* See if we can open a nonblocking channel. |
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140 Return value '1' means we can. |
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141 Return value '0' means we cannot. */ |
0 | 142 |
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143 int available; |
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144 int rval; |
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145 snd_pcm_t* handle; |
0 | 146 |
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147 available = 0; |
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148 handle = NULL; |
0 | 149 |
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150 rval = snd_pcm_open_preferred(&handle, NULL, NULL, OPEN_FLAGS); |
0 | 151 |
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152 if (rval >= 0) |
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153 { |
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154 available = 1; |
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155 |
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156 if ((rval = snd_pcm_close(handle)) < 0) |
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157 { |
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158 SDL_SetError("NTO_AudioAvailable(): snd_pcm_close failed: %s\n", snd_strerror(rval)); |
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159 available = 0; |
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160 } |
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161 } |
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162 else |
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163 { |
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164 SDL_SetError("NTO_AudioAvailable(): there are no available audio devices.\n"); |
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165 } |
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166 |
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167 return (available); |
0 | 168 } |
169 | |
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170 static void NTO_DeleteAudioDevice(SDL_AudioDevice *device) |
0 | 171 { |
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172 if ((device)&&(device->hidden)) |
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173 { |
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174 SDL_free(device->hidden); |
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175 } |
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176 if (device) |
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177 { |
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178 SDL_free(device); |
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179 } |
0 | 180 } |
181 | |
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182 static SDL_AudioDevice* NTO_CreateAudioDevice(int devindex) |
0 | 183 { |
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184 SDL_AudioDevice *this; |
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185 |
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186 /* Initialize all variables that we clean on shutdown */ |
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187 this = (SDL_AudioDevice *)SDL_malloc(sizeof(SDL_AudioDevice)); |
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188 if (this) |
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189 { |
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190 SDL_memset(this, 0, sizeof(SDL_AudioDevice)); |
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191 this->hidden = (struct SDL_PrivateAudioData *)SDL_malloc(sizeof(struct SDL_PrivateAudioData)); |
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192 } |
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193 if ((this == NULL) || (this->hidden == NULL)) |
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194 { |
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195 SDL_OutOfMemory(); |
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196 if (this) |
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197 { |
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198 SDL_free(this); |
0 | 199 } |
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200 return (0); |
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201 } |
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202 SDL_memset(this->hidden, 0, sizeof(struct SDL_PrivateAudioData)); |
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203 audio_handle = NULL; |
0 | 204 |
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205 /* Set the function pointers */ |
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206 this->ThreadInit = NTO_ThreadInit; |
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207 this->OpenAudio = NTO_OpenAudio; |
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208 this->WaitAudio = NTO_WaitAudio; |
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209 this->PlayAudio = NTO_PlayAudio; |
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210 this->GetAudioBuf = NTO_GetAudioBuf; |
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211 this->CloseAudio = NTO_CloseAudio; |
0 | 212 |
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213 this->free = NTO_DeleteAudioDevice; |
0 | 214 |
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215 return this; |
0 | 216 } |
217 | |
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218 AudioBootStrap QNXNTOAUDIO_bootstrap = |
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219 { |
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220 DRIVER_NAME, "QNX6 QSA-NTO Audio", |
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221 NTO_AudioAvailable, |
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222 NTO_CreateAudioDevice |
0 | 223 }; |
224 | |
225 /* This function waits until it is possible to write a full sound buffer */ | |
226 static void NTO_WaitAudio(_THIS) | |
227 { | |
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228 fd_set wfds; |
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229 int selectret; |
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230 |
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231 FD_ZERO(&wfds); |
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232 FD_SET(audio_fd, &wfds); |
0 | 233 |
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234 do { |
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235 selectret=select(audio_fd + 1, NULL, &wfds, NULL, NULL); |
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236 switch (selectret) |
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237 { |
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238 case -1: |
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239 case 0: SDL_SetError("NTO_WaitAudio(): select() failed: %s\n", strerror(errno)); |
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240 return; |
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241 default: if (FD_ISSET(audio_fd, &wfds)) |
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242 { |
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243 return; |
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244 } |
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245 break; |
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246 } |
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247 } while(1); |
0 | 248 } |
249 | |
250 static void NTO_PlayAudio(_THIS) | |
251 { | |
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252 int written, rval; |
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253 int towrite; |
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254 void* pcmbuffer; |
0 | 255 |
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256 if (!this->enabled) |
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257 { |
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258 return; |
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259 } |
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260 |
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261 towrite = this->spec.size; |
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262 pcmbuffer = pcm_buf; |
0 | 263 |
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264 /* Write the audio data, checking for EAGAIN (buffer full) and underrun */ |
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265 do { |
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266 written = snd_pcm_plugin_write(audio_handle, pcm_buf, towrite); |
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267 if (written != towrite) |
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268 { |
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269 if ((errno == EAGAIN) || (errno == EWOULDBLOCK)) |
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270 { |
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271 /* Let a little CPU time go by and try to write again */ |
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272 SDL_Delay(1); |
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273 /* if we wrote some data */ |
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274 towrite -= written; |
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275 pcmbuffer += written * this->spec.channels; |
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276 continue; |
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277 } |
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278 else |
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279 { |
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280 if ((errno == EINVAL) || (errno == EIO)) |
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281 { |
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282 SDL_memset(&cstatus, 0, sizeof(cstatus)); |
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283 cstatus.channel = SND_PCM_CHANNEL_PLAYBACK; |
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284 if ((rval = snd_pcm_plugin_status(audio_handle, &cstatus)) < 0) |
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285 { |
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286 SDL_SetError("NTO_PlayAudio(): snd_pcm_plugin_status failed: %s\n", snd_strerror(rval)); |
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287 return; |
cbc0f7fabd1c
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|
288 } |
cbc0f7fabd1c
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289 if ((cstatus.status == SND_PCM_STATUS_UNDERRUN) || (cstatus.status == SND_PCM_STATUS_READY)) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
290 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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291 if ((rval = snd_pcm_plugin_prepare(audio_handle, SND_PCM_CHANNEL_PLAYBACK)) < 0) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
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|
292 { |
cbc0f7fabd1c
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293 SDL_SetError("NTO_PlayAudio(): snd_pcm_plugin_prepare failed: %s\n", snd_strerror(rval)); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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294 return; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
295 } |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
296 } |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
297 continue; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
298 } |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
299 else |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
300 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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301 return; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
302 } |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
303 } |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
304 } |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
305 else |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
306 { |
cbc0f7fabd1c
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307 /* we wrote all remaining data */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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308 towrite -= written; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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309 pcmbuffer += written * this->spec.channels; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
310 } |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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311 } while ((towrite > 0) && (this->enabled)); |
0 | 312 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
313 /* If we couldn't write, assume fatal error for now */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
314 if (towrite != 0) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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changeset
|
315 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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316 this->enabled = 0; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
317 } |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
318 |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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319 return; |
0 | 320 } |
321 | |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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322 static Uint8* NTO_GetAudioBuf(_THIS) |
0 | 323 { |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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324 return pcm_buf; |
0 | 325 } |
326 | |
327 static void NTO_CloseAudio(_THIS) | |
328 { | |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
329 int rval; |
0 | 330 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
331 this->enabled = 0; |
0 | 332 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
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|
333 if (audio_handle != NULL) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
334 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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335 if ((rval = snd_pcm_plugin_flush(audio_handle, SND_PCM_CHANNEL_PLAYBACK)) < 0) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
changeset
|
336 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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337 SDL_SetError("NTO_CloseAudio(): snd_pcm_plugin_flush failed: %s\n", snd_strerror(rval)); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
338 return; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
339 } |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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340 if ((rval = snd_pcm_close(audio_handle)) < 0) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
341 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
342 SDL_SetError("NTO_CloseAudio(): snd_pcm_close failed: %s\n",snd_strerror(rval)); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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663
diff
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|
343 return; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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|
344 } |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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345 audio_handle = NULL; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
346 } |
0 | 347 } |
348 | |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
349 static int NTO_OpenAudio(_THIS, SDL_AudioSpec* spec) |
0 | 350 { |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
351 int rval; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
352 int format; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
353 Uint16 test_format; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
354 int found; |
0 | 355 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
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|
356 audio_handle = NULL; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
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|
357 this->enabled = 0; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
changeset
|
358 |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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changeset
|
359 if (pcm_buf != NULL) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
changeset
|
360 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
361 SDL_FreeAudioMem(pcm_buf); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
changeset
|
362 pcm_buf = NULL; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
changeset
|
363 } |
0 | 364 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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663
diff
changeset
|
365 /* initialize channel transfer parameters to default */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
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|
366 NTO_InitAudioParams(&cparams); |
0 | 367 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
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|
368 /* Open the audio device */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
changeset
|
369 rval = snd_pcm_open_preferred(&audio_handle, &cardno, &deviceno, OPEN_FLAGS); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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663
diff
changeset
|
370 if (rval < 0) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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663
diff
changeset
|
371 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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663
diff
changeset
|
372 SDL_SetError("NTO_OpenAudio(): snd_pcm_open failed: %s\n", snd_strerror(rval)); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
373 return (-1); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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663
diff
changeset
|
374 } |
0 | 375 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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parents:
663
diff
changeset
|
376 if (!NTO_CheckBuggyCards(this, QSA_MMAP_WORKAROUND)) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
377 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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663
diff
changeset
|
378 /* enable count status parameter */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
379 if ((rval = snd_pcm_plugin_set_disable(audio_handle, PLUGIN_DISABLE_MMAP)) < 0) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
380 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
381 SDL_SetError("snd_pcm_plugin_set_disable failed: %s\n", snd_strerror(rval)); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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663
diff
changeset
|
382 return (-1); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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663
diff
changeset
|
383 } |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
384 } |
0 | 385 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
386 /* Try for a closest match on audio format */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
387 format = 0; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
388 /* can't use format as SND_PCM_SFMT_U8 = 0 in nto */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
389 found = 0; |
418
337f3ec4c385
Updated the QNX audio code for QNX 6.2 (thanks Travis!)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
390 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
391 for (test_format=SDL_FirstAudioFormat(spec->format); !found ;) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
392 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
393 /* if match found set format to equivalent ALSA format */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
394 switch (test_format) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
395 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
396 case AUDIO_U8: |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
397 format = SND_PCM_SFMT_U8; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
398 found = 1; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
399 break; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
400 case AUDIO_S8: |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
401 format = SND_PCM_SFMT_S8; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
402 found = 1; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
403 break; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
404 case AUDIO_S16LSB: |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
405 format = SND_PCM_SFMT_S16_LE; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
406 found = 1; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
407 break; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
408 case AUDIO_S16MSB: |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
409 format = SND_PCM_SFMT_S16_BE; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
410 found = 1; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
411 break; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
412 case AUDIO_U16LSB: |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
413 format = SND_PCM_SFMT_U16_LE; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
414 found = 1; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
415 break; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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changeset
|
416 case AUDIO_U16MSB: |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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417 format = SND_PCM_SFMT_U16_BE; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
418 found = 1; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
changeset
|
419 break; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
420 default: |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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changeset
|
421 break; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
changeset
|
422 } |
418
337f3ec4c385
Updated the QNX audio code for QNX 6.2 (thanks Travis!)
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|
423 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
424 if (!found) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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changeset
|
425 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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|
426 test_format = SDL_NextAudioFormat(); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
427 } |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
428 } |
0 | 429 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
430 /* assumes test_format not 0 on success */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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431 if (test_format == 0) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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|
432 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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|
433 SDL_SetError("NTO_OpenAudio(): Couldn't find any hardware audio formats"); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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diff
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|
434 return (-1); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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changeset
|
435 } |
0 | 436 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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|
437 spec->format = test_format; |
0 | 438 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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diff
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|
439 /* Set the audio format */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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|
440 cparams.format.format = format; |
0 | 441 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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|
442 /* Set mono or stereo audio (currently only two channels supported) */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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parents:
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|
443 cparams.format.voices = spec->channels; |
418
337f3ec4c385
Updated the QNX audio code for QNX 6.2 (thanks Travis!)
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|
444 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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|
445 /* Set rate */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
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diff
changeset
|
446 cparams.format.rate = spec->freq; |
418
337f3ec4c385
Updated the QNX audio code for QNX 6.2 (thanks Travis!)
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447 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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|
448 /* Setup the transfer parameters according to cparams */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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449 rval = snd_pcm_plugin_params(audio_handle, &cparams); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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changeset
|
450 if (rval < 0) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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changeset
|
451 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
changeset
|
452 SDL_SetError("NTO_OpenAudio(): snd_pcm_channel_params failed: %s\n", snd_strerror(rval)); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
changeset
|
453 return (-1); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
454 } |
0 | 455 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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parents:
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diff
changeset
|
456 /* Make sure channel is setup right one last time */ |
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
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|
457 SDL_memset(&csetup, 0x00, sizeof(csetup)); |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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diff
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|
458 csetup.channel = SND_PCM_CHANNEL_PLAYBACK; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
459 if (snd_pcm_plugin_setup(audio_handle, &csetup) < 0) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
460 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
461 SDL_SetError("NTO_OpenAudio(): Unable to setup playback channel\n"); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
462 return -1; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
463 } |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
464 |
418
337f3ec4c385
Updated the QNX audio code for QNX 6.2 (thanks Travis!)
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diff
changeset
|
465 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
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parents:
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diff
changeset
|
466 /* Calculate the final parameters for this audio specification */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
467 SDL_CalculateAudioSpec(spec); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
468 |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
469 pcm_len = spec->size; |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
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diff
changeset
|
470 |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
471 if (pcm_len==0) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
472 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
473 pcm_len = csetup.buf.block.frag_size * spec->channels * (snd_pcm_format_width(format)/8); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
474 } |
0 | 475 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
476 /* Allocate memory to the audio buffer and initialize with silence (Note that |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
477 buffer size must be a multiple of fragment size, so find closest multiple) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
478 */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
479 pcm_buf = (Uint8*)SDL_AllocAudioMem(pcm_len); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
480 if (pcm_buf == NULL) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
481 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
482 SDL_SetError("NTO_OpenAudio(): pcm buffer allocation failed\n"); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
483 return (-1); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
484 } |
1336
3692456e7b0f
Use SDL_ prefixed versions of C library functions.
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
485 SDL_memset(pcm_buf, spec->silence, pcm_len); |
0 | 486 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
487 /* get the file descriptor */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
488 if ((audio_fd = snd_pcm_file_descriptor(audio_handle, SND_PCM_CHANNEL_PLAYBACK)) < 0) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
489 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
490 SDL_SetError("NTO_OpenAudio(): snd_pcm_file_descriptor failed with error code: %s\n", snd_strerror(rval)); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
491 return (-1); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
492 } |
418
337f3ec4c385
Updated the QNX audio code for QNX 6.2 (thanks Travis!)
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297
diff
changeset
|
493 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
494 /* Trigger audio playback */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
495 rval = snd_pcm_plugin_prepare(audio_handle, SND_PCM_CHANNEL_PLAYBACK); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
496 if (rval < 0) |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
497 { |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
498 SDL_SetError("snd_pcm_plugin_prepare failed: %s\n", snd_strerror(rval)); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
499 return (-1); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
500 } |
418
337f3ec4c385
Updated the QNX audio code for QNX 6.2 (thanks Travis!)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
501 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
502 this->enabled = 1; |
0 | 503 |
718
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
504 /* Get the parent process id (we're the parent of the audio thread) */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
505 parent = getpid(); |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
506 |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
507 /* We're really ready to rock and roll. :-) */ |
cbc0f7fabd1c
Date: Sat, 13 Sep 2003 15:50:43 +0300
Sam Lantinga <slouken@libsdl.org>
parents:
663
diff
changeset
|
508 return (0); |
0 | 509 } |