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comparison src/audio/windx5/SDL_dx5audio.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 c03f1446e897
children e1da92da346c
comparison
equal deleted inserted replaced
2059:4685ccd33d0e 2060:866052b01ee5
37 #define WINDOWS_OS_NAME "Win32" 37 #define WINDOWS_OS_NAME "Win32"
38 #endif 38 #endif
39 39
40 /* DirectX function pointers for audio */ 40 /* DirectX function pointers for audio */
41 static HINSTANCE DSoundDLL = NULL; 41 static HINSTANCE DSoundDLL = NULL;
42 static HRESULT (WINAPI *DSoundCreate)(LPGUID,LPDIRECTSOUND*,LPUNKNOWN) = NULL; 42 static HRESULT(WINAPI * DSoundCreate) (LPGUID, LPDIRECTSOUND *, LPUNKNOWN) =
43 NULL;
43 44
44 static void 45 static void
45 DSOUND_Unload(void) 46 DSOUND_Unload(void)
46 { 47 {
47 if (DSoundDLL != NULL) { 48 if (DSoundDLL != NULL) {
68 /* (DirectSoundCaptureCreate was added in DX5) */ 69 /* (DirectSoundCaptureCreate was added in DX5) */
69 if (!GetProcAddress(DSoundDLL, TEXT("DirectSoundCaptureCreate"))) { 70 if (!GetProcAddress(DSoundDLL, TEXT("DirectSoundCaptureCreate"))) {
70 SDL_SetError("DirectSound: System doesn't appear to have DX5."); 71 SDL_SetError("DirectSound: System doesn't appear to have DX5.");
71 } else { 72 } else {
72 DSoundCreate = (void *) GetProcAddress(DSoundDLL, 73 DSoundCreate = (void *) GetProcAddress(DSoundDLL,
73 TEXT("DirectSoundCreate")); 74 TEXT("DirectSoundCreate"));
74 } 75 }
75 76
76 if (!DSoundCreate) { 77 if (!DSoundCreate) {
77 SDL_SetError("DirectSound: Failed to find DirectSoundCreate"); 78 SDL_SetError("DirectSound: Failed to find DirectSoundCreate");
78 } else { 79 } else {
269 cursor *= this->hidden->mixlen; 270 cursor *= this->hidden->mixlen;
270 271
271 /* Lock the audio buffer */ 272 /* Lock the audio buffer */
272 result = IDirectSoundBuffer_Lock(this->hidden->mixbuf, cursor, 273 result = IDirectSoundBuffer_Lock(this->hidden->mixbuf, cursor,
273 this->hidden->mixlen, 274 this->hidden->mixlen,
274 (LPVOID *) &this->hidden->locked_buf, 275 (LPVOID *) & this->hidden->locked_buf,
275 &rawlen, NULL, &junk, 0); 276 &rawlen, NULL, &junk, 0);
276 if (result == DSERR_BUFFERLOST) { 277 if (result == DSERR_BUFFERLOST) {
277 IDirectSoundBuffer_Restore(this->hidden->mixbuf); 278 IDirectSoundBuffer_Restore(this->hidden->mixbuf);
278 result = IDirectSoundBuffer_Lock(this->hidden->mixbuf, cursor, 279 result = IDirectSoundBuffer_Lock(this->hidden->mixbuf, cursor,
279 this->hidden->mixlen, 280 this->hidden->mixlen,
280 (LPVOID *) &this->hidden->locked_buf, 281 (LPVOID *) & this->hidden->
281 &rawlen, NULL, &junk, 0); 282 locked_buf, &rawlen, NULL, &junk, 0);
282 } 283 }
283 if (result != DS_OK) { 284 if (result != DS_OK) {
284 SetDSerror("DirectSound Lock", result); 285 SetDSerror("DirectSound Lock", result);
285 return (NULL); 286 return (NULL);
286 } 287 }
324 325
325 /* This function tries to create a secondary audio buffer, and returns the 326 /* This function tries to create a secondary audio buffer, and returns the
326 number of audio chunks available in the created buffer. 327 number of audio chunks available in the created buffer.
327 */ 328 */
328 static int 329 static int
329 CreateSecondary(_THIS, HWND focus, WAVEFORMATEX *wavefmt) 330 CreateSecondary(_THIS, HWND focus, WAVEFORMATEX * wavefmt)
330 { 331 {
331 LPDIRECTSOUND sndObj = this->hidden->sound; 332 LPDIRECTSOUND sndObj = this->hidden->sound;
332 LPDIRECTSOUNDBUFFER *sndbuf = &this->hidden->mixbuf; 333 LPDIRECTSOUNDBUFFER *sndbuf = &this->hidden->mixbuf;
333 Uint32 chunksize = this->spec.size; 334 Uint32 chunksize = this->spec.size;
334 const int numchunks = 8; 335 const int numchunks = 8;
403 /* !!! FIXME: handle devname */ 404 /* !!! FIXME: handle devname */
404 /* !!! FIXME: handle iscapture */ 405 /* !!! FIXME: handle iscapture */
405 406
406 /* Initialize all variables that we clean on shutdown */ 407 /* Initialize all variables that we clean on shutdown */
407 this->hidden = (struct SDL_PrivateAudioData *) 408 this->hidden = (struct SDL_PrivateAudioData *)
408 SDL_malloc((sizeof *this->hidden)); 409 SDL_malloc((sizeof *this->hidden));
409 if (this->hidden == NULL) { 410 if (this->hidden == NULL) {
410 SDL_OutOfMemory(); 411 SDL_OutOfMemory();
411 return 0; 412 return 0;
412 } 413 }
413 SDL_memset(this->hidden, 0, (sizeof *this->hidden)); 414 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
414 415
415 while ((!valid_format) && (test_format)) { 416 while ((!valid_format) && (test_format)) {
416 switch (test_format) { 417 switch (test_format) {
417 case AUDIO_U8: 418 case AUDIO_U8:
418 case AUDIO_S16: 419 case AUDIO_S16:
419 case AUDIO_S32: 420 case AUDIO_S32:
420 this->spec.format = test_format; 421 this->spec.format = test_format;
421 valid_format = 1; 422 valid_format = 1;
422 break; 423 break;
423 } 424 }
424 test_format = SDL_NextAudioFormat(); 425 test_format = SDL_NextAudioFormat();
425 } 426 }
426 427
427 if (!valid_format) { 428 if (!valid_format) {
459 } 460 }
460 461
461 /* The buffer will auto-start playing in DSOUND_WaitDevice() */ 462 /* The buffer will auto-start playing in DSOUND_WaitDevice() */
462 this->hidden->mixlen = this->spec.size; 463 this->hidden->mixlen = this->spec.size;
463 464
464 return 1; /* good to go. */ 465 return 1; /* good to go. */
465 } 466 }
466 467
467 468
468 static void 469 static void
469 DSOUND_Deinitialize(void) 470 DSOUND_Deinitialize(void)
471 DSOUND_Unload(); 472 DSOUND_Unload();
472 } 473 }
473 474
474 475
475 static int 476 static int
476 DSOUND_Init(SDL_AudioDriverImpl *impl) 477 DSOUND_Init(SDL_AudioDriverImpl * impl)
477 { 478 {
478 OSVERSIONINFO ver; 479 OSVERSIONINFO ver;
479 480
480 /* 481 /*
481 * Unfortunately, the sound drivers on NT have higher latencies than the 482 * Unfortunately, the sound drivers on NT have higher latencies than the
482 * audio buffers used by many SDL applications, so there are gaps in the 483 * audio buffers used by many SDL applications, so there are gaps in the
483 * audio - it sounds terrible. Punt for now. 484 * audio - it sounds terrible. Punt for now.
484 */ 485 */
485 SDL_memset(&ver, '\0', sizeof (OSVERSIONINFO)); 486 SDL_memset(&ver, '\0', sizeof(OSVERSIONINFO));
486 ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO); 487 ver.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
487 GetVersionEx(&ver); 488 GetVersionEx(&ver);
488 if (ver.dwPlatformId == VER_PLATFORM_WIN32_NT) { 489 if (ver.dwPlatformId == VER_PLATFORM_WIN32_NT) {
489 if (ver.dwMajorVersion <= 4) { 490 if (ver.dwMajorVersion <= 4) {
490 return 0; /* NT4.0 or earlier. Disable dsound support. */ 491 return 0; /* NT4.0 or earlier. Disable dsound support. */
491 } 492 }
492 } 493 }
493 494
494 if (!DSOUND_Load()) { 495 if (!DSOUND_Load()) {
495 return 0; 496 return 0;
502 impl->WaitDone = DSOUND_WaitDone; 503 impl->WaitDone = DSOUND_WaitDone;
503 impl->ThreadInit = DSOUND_ThreadInit; 504 impl->ThreadInit = DSOUND_ThreadInit;
504 impl->GetDeviceBuf = DSOUND_GetDeviceBuf; 505 impl->GetDeviceBuf = DSOUND_GetDeviceBuf;
505 impl->CloseDevice = DSOUND_CloseDevice; 506 impl->CloseDevice = DSOUND_CloseDevice;
506 impl->Deinitialize = DSOUND_Deinitialize; 507 impl->Deinitialize = DSOUND_Deinitialize;
507 impl->OnlyHasDefaultOutputDevice = 1; /* !!! FIXME */ 508 impl->OnlyHasDefaultOutputDevice = 1; /* !!! FIXME */
508 509
509 return 1; 510 return 1;
510 } 511 }
511 512
512 AudioBootStrap DSOUND_bootstrap = { 513 AudioBootStrap DSOUND_bootstrap = {