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comparison src/audio/windib/SDL_dibaudio.c @ 2060:866052b01ee5

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indent is evil
author Sam Lantinga <slouken@libsdl.org>
date Sat, 28 Oct 2006 16:48:03 +0000
parents bbc89e09503f
children e27bdcc80744 204be4fc2726
comparison
equal deleted inserted replaced
2059:4685ccd33d0e 2060:866052b01ee5
105 } 105 }
106 106
107 Uint8 * 107 Uint8 *
108 WINWAVEOUT_GetDeviceBuf(_THIS) 108 WINWAVEOUT_GetDeviceBuf(_THIS)
109 { 109 {
110 return (Uint8 *) (this->hidden->wavebuf[this->hidden->next_buffer].lpData); 110 return (Uint8 *) (this->hidden->wavebuf[this->hidden->next_buffer].
111 lpData);
111 } 112 }
112 113
113 void 114 void
114 WINWAVEOUT_PlayDevice(_THIS) 115 WINWAVEOUT_PlayDevice(_THIS)
115 { 116 {
116 /* Queue it up */ 117 /* Queue it up */
117 waveOutWrite(this->hidden->sound, 118 waveOutWrite(this->hidden->sound,
118 &this->hidden->wavebuf[this->hidden->next_buffer], 119 &this->hidden->wavebuf[this->hidden->next_buffer],
119 sizeof (this->hidden->wavebuf[0])); 120 sizeof(this->hidden->wavebuf[0]));
120 this->hidden->next_buffer = (this->hidden->next_buffer + 1) % NUM_BUFFERS; 121 this->hidden->next_buffer = (this->hidden->next_buffer + 1) % NUM_BUFFERS;
121 } 122 }
122 123
123 void 124 void
124 WINWAVEOUT_WaitDone(_THIS) 125 WINWAVEOUT_WaitDone(_THIS)
163 /* Clean up mixing buffers */ 164 /* Clean up mixing buffers */
164 for (i = 0; i < NUM_BUFFERS; ++i) { 165 for (i = 0; i < NUM_BUFFERS; ++i) {
165 if (this->hidden->wavebuf[i].dwUser != 0xFFFF) { 166 if (this->hidden->wavebuf[i].dwUser != 0xFFFF) {
166 waveOutUnprepareHeader(this->hidden->sound, 167 waveOutUnprepareHeader(this->hidden->sound,
167 &this->hidden->wavebuf[i], 168 &this->hidden->wavebuf[i],
168 sizeof (this->hidden->wavebuf[i])); 169 sizeof(this->hidden->wavebuf[i]));
169 this->hidden->wavebuf[i].dwUser = 0xFFFF; 170 this->hidden->wavebuf[i].dwUser = 0xFFFF;
170 } 171 }
171 } 172 }
172 173
173 if (this->hidden->mixbuf != NULL) { 174 if (this->hidden->mixbuf != NULL) {
190 WAVEFORMATEX waveformat; 191 WAVEFORMATEX waveformat;
191 int i; 192 int i;
192 193
193 /* Initialize all variables that we clean on shutdown */ 194 /* Initialize all variables that we clean on shutdown */
194 this->hidden = (struct SDL_PrivateAudioData *) 195 this->hidden = (struct SDL_PrivateAudioData *)
195 SDL_malloc((sizeof *this->hidden)); 196 SDL_malloc((sizeof *this->hidden));
196 if (this->hidden == NULL) { 197 if (this->hidden == NULL) {
197 SDL_OutOfMemory(); 198 SDL_OutOfMemory();
198 return 0; 199 return 0;
199 } 200 }
200 SDL_memset(this->hidden, 0, (sizeof *this->hidden)); 201 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
205 206
206 while ((!valid_datatype) && (test_format)) { 207 while ((!valid_datatype) && (test_format)) {
207 valid_datatype = 1; 208 valid_datatype = 1;
208 this->spec.format = test_format; 209 this->spec.format = test_format;
209 switch (test_format) { 210 switch (test_format) {
210 case AUDIO_U8: 211 case AUDIO_U8:
211 case AUDIO_S16: 212 case AUDIO_S16:
212 case AUDIO_S32: 213 case AUDIO_S32:
213 break; /* valid. */ 214 break; /* valid. */
214 215
215 default: 216 default:
216 valid_datatype = 0; 217 valid_datatype = 0;
217 test_format = SDL_NextAudioFormat(); 218 test_format = SDL_NextAudioFormat();
218 break; 219 break;
219 } 220 }
220 } 221 }
221 222
222 if (!valid_datatype) { 223 if (!valid_datatype) {
223 WINWAVEOUT_CloseDevice(this); 224 WINWAVEOUT_CloseDevice(this);
224 SDL_SetError("Unsupported audio format"); 225 SDL_SetError("Unsupported audio format");
225 return 0; 226 return 0;
226 } 227 }
227 228
228 /* Set basic WAVE format parameters */ 229 /* Set basic WAVE format parameters */
229 SDL_memset(&waveformat, '\0', sizeof (waveformat)); 230 SDL_memset(&waveformat, '\0', sizeof(waveformat));
230 waveformat.wFormatTag = WAVE_FORMAT_PCM; 231 waveformat.wFormatTag = WAVE_FORMAT_PCM;
231 waveformat.wBitsPerSample = SDL_AUDIO_BITSIZE(this->spec.format); 232 waveformat.wBitsPerSample = SDL_AUDIO_BITSIZE(this->spec.format);
232 233
233 if (this->spec.channels > 2) 234 if (this->spec.channels > 2)
234 this->spec.channels = 2; /* !!! FIXME: is this right? */ 235 this->spec.channels = 2; /* !!! FIXME: is this right? */
235 236
236 waveformat.nChannels = this->spec.channels; 237 waveformat.nChannels = this->spec.channels;
237 waveformat.nSamplesPerSec = this->spec.freq; 238 waveformat.nSamplesPerSec = this->spec.freq;
238 waveformat.nBlockAlign = 239 waveformat.nBlockAlign =
239 waveformat.nChannels * (waveformat.wBitsPerSample / 8); 240 waveformat.nChannels * (waveformat.wBitsPerSample / 8);
271 printf("Audio device: %s\n", caps.szPname); 272 printf("Audio device: %s\n", caps.szPname);
272 } 273 }
273 #endif 274 #endif
274 275
275 /* Create the audio buffer semaphore */ 276 /* Create the audio buffer semaphore */
276 this->hidden->audio_sem = 277 this->hidden->audio_sem =
277 #if defined(_WIN32_WCE) && (_WIN32_WCE < 300) 278 #if defined(_WIN32_WCE) && (_WIN32_WCE < 300)
278 CreateSemaphoreCE(NULL, NUM_BUFFERS - 1, NUM_BUFFERS, NULL); 279 CreateSemaphoreCE(NULL, NUM_BUFFERS - 1, NUM_BUFFERS, NULL);
279 #else 280 #else
280 CreateSemaphore(NULL, NUM_BUFFERS - 1, NUM_BUFFERS, NULL); 281 CreateSemaphore(NULL, NUM_BUFFERS - 1, NUM_BUFFERS, NULL);
281 #endif 282 #endif
282 if (this->hidden->audio_sem == NULL) { 283 if (this->hidden->audio_sem == NULL) {
283 WINWAVEOUT_CloseDevice(this); 284 WINWAVEOUT_CloseDevice(this);
284 SDL_SetError("Couldn't create semaphore"); 285 SDL_SetError("Couldn't create semaphore");
285 return 0; 286 return 0;
286 } 287 }
287 288
288 /* Create the sound buffers */ 289 /* Create the sound buffers */
289 this->hidden->mixbuf = (Uint8 *) SDL_malloc(NUM_BUFFERS * this->spec.size); 290 this->hidden->mixbuf =
291 (Uint8 *) SDL_malloc(NUM_BUFFERS * this->spec.size);
290 if (this->hidden->mixbuf == NULL) { 292 if (this->hidden->mixbuf == NULL) {
291 WINWAVEOUT_CloseDevice(this); 293 WINWAVEOUT_CloseDevice(this);
292 SDL_OutOfMemory(); 294 SDL_OutOfMemory();
293 return 0; 295 return 0;
294 } 296 }
295 for (i = 0; i < NUM_BUFFERS; ++i) { 297 for (i = 0; i < NUM_BUFFERS; ++i) {
296 SDL_memset(&this->hidden->wavebuf[i], '\0', 298 SDL_memset(&this->hidden->wavebuf[i], '\0',
297 sizeof (this->hidden->wavebuf[i])); 299 sizeof(this->hidden->wavebuf[i]));
298 this->hidden->wavebuf[i].dwBufferLength = this->spec.size; 300 this->hidden->wavebuf[i].dwBufferLength = this->spec.size;
299 this->hidden->wavebuf[i].dwFlags = WHDR_DONE; 301 this->hidden->wavebuf[i].dwFlags = WHDR_DONE;
300 this->hidden->wavebuf[i].lpData = 302 this->hidden->wavebuf[i].lpData =
301 (LPSTR) &this->hidden->mixbuf[i * this->spec.size]; 303 (LPSTR) & this->hidden->mixbuf[i * this->spec.size];
302 result = waveOutPrepareHeader(this->hidden->sound, 304 result = waveOutPrepareHeader(this->hidden->sound,
303 &this->hidden->wavebuf[i], 305 &this->hidden->wavebuf[i],
304 sizeof (this->hidden->wavebuf[i])); 306 sizeof(this->hidden->wavebuf[i]));
305 if (result != MMSYSERR_NOERROR) { 307 if (result != MMSYSERR_NOERROR) {
306 WINWAVEOUT_CloseDevice(this); 308 WINWAVEOUT_CloseDevice(this);
307 SetMMerror("waveOutPrepareHeader()", result); 309 SetMMerror("waveOutPrepareHeader()", result);
308 return 0; 310 return 0;
309 } 311 }
310 } 312 }
311 313
312 return 1; /* Ready to go! */ 314 return 1; /* Ready to go! */
313 } 315 }
314 316
315 317
316 static int 318 static int
317 WINWAVEOUT_Init(SDL_AudioDriverImpl *impl) 319 WINWAVEOUT_Init(SDL_AudioDriverImpl * impl)
318 { 320 {
319 /* Set the function pointers */ 321 /* Set the function pointers */
320 impl->OpenDevice = WINWAVEOUT_OpenDevice; 322 impl->OpenDevice = WINWAVEOUT_OpenDevice;
321 impl->ThreadInit = WINWAVEOUT_ThreadInit; 323 impl->ThreadInit = WINWAVEOUT_ThreadInit;
322 impl->PlayDevice = WINWAVEOUT_PlayDevice; 324 impl->PlayDevice = WINWAVEOUT_PlayDevice;
323 impl->WaitDevice = WINWAVEOUT_WaitDevice; 325 impl->WaitDevice = WINWAVEOUT_WaitDevice;
324 impl->WaitDone = WINWAVEOUT_WaitDone; 326 impl->WaitDone = WINWAVEOUT_WaitDone;
325 impl->GetDeviceBuf = WINWAVEOUT_GetDeviceBuf; 327 impl->GetDeviceBuf = WINWAVEOUT_GetDeviceBuf;
326 impl->CloseDevice = WINWAVEOUT_CloseDevice; 328 impl->CloseDevice = WINWAVEOUT_CloseDevice;
327 impl->OnlyHasDefaultOutputDevice = 1; /* !!! FIXME: Is this true? */ 329 impl->OnlyHasDefaultOutputDevice = 1; /* !!! FIXME: Is this true? */
328 330
329 return 1; 331 return 1;
330 } 332 }
331 333
332 AudioBootStrap WINWAVEOUT_bootstrap = { 334 AudioBootStrap WINWAVEOUT_bootstrap = {