2 * OpenAL cross platform audio library
3 * Copyright (C) 1999-2007 by authors.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the
16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 * Boston, MA 02111-1307, USA.
18 * Or go to http://www.gnu.org/copyleft/lgpl.html
23 #define _WIN32_WINNT 0x0500
31 #ifndef _WAVEFORMATEXTENSIBLE_
40 #ifndef DSSPEAKER_5POINT1
41 #define DSSPEAKER_5POINT1 6
43 #ifndef DSSPEAKER_7POINT1
44 #define DSSPEAKER_7POINT1 7
47 DEFINE_GUID(KSDATAFORMAT_SUBTYPE_PCM
, 0x00000001, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71);
48 DEFINE_GUID(KSDATAFORMAT_SUBTYPE_IEEE_FLOAT
, 0x00000003, 0x0000, 0x0010, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71);
50 static void *ds_handle
;
51 static HRESULT (WINAPI
*pDirectSoundCreate
)(LPCGUID pcGuidDevice
, LPDIRECTSOUND
*ppDS
, LPUNKNOWN pUnkOuter
);
52 static HRESULT (WINAPI
*pDirectSoundEnumerateA
)(LPDSENUMCALLBACKA pDSEnumCallback
, LPVOID pContext
);
56 // DirectSound Playback Device
58 LPDIRECTSOUNDBUFFER DSpbuffer
;
59 LPDIRECTSOUNDBUFFER DSsbuffer
;
71 static const ALCchar dsDevice
[] = "DirectSound Software";
72 static DevMap
*DeviceList
;
73 static ALuint NumDevices
;
76 void *DSoundLoad(void)
81 ds_handle
= LoadLibraryA("dsound.dll");
84 AL_PRINT("Failed to load dsound.dll\n");
88 #define LOAD_FUNC(f) do { \
89 p##f = (void*)GetProcAddress((HMODULE)ds_handle, #f); \
92 FreeLibrary(ds_handle); \
94 AL_PRINT("Could not load %s from dsound.dll\n", #f); \
99 ds_handle
= (void*)0xDEADBEEF;
100 #define LOAD_FUNC(f) p##f = f
103 LOAD_FUNC(DirectSoundCreate
);
104 LOAD_FUNC(DirectSoundEnumerateA
);
111 static BOOL CALLBACK
DSoundEnumDevices(LPGUID guid
, LPCSTR desc
, LPCSTR drvname
, LPVOID data
)
127 snprintf(str
, sizeof(str
), "%s via DirectSound", desc
);
129 snprintf(str
, sizeof(str
), "%s #%d via DirectSound", desc
, count
+1);
132 for(i
= 0;i
< NumDevices
;i
++)
134 if(strcmp(str
, DeviceList
[i
].name
) == 0)
137 } while(i
!= NumDevices
);
139 temp
= realloc(DeviceList
, sizeof(DevMap
) * (NumDevices
+1));
143 DeviceList
[NumDevices
].name
= strdup(str
);
144 DeviceList
[NumDevices
].guid
= *guid
;
152 static ALuint
DSoundProc(ALvoid
*ptr
)
154 ALCdevice
*pDevice
= (ALCdevice
*)ptr
;
155 DSoundData
*pData
= (DSoundData
*)pDevice
->ExtraData
;
157 DWORD LastCursor
= 0;
159 VOID
*WritePtr1
, *WritePtr2
;
160 DWORD WriteCnt1
, WriteCnt2
;
161 BOOL Playing
= FALSE
;
169 memset(&DSBCaps
, 0, sizeof(DSBCaps
));
170 DSBCaps
.dwSize
= sizeof(DSBCaps
);
171 err
= IDirectSoundBuffer_GetCaps(pData
->DSsbuffer
, &DSBCaps
);
174 AL_PRINT("Failed to get buffer caps: 0x%lx\n", err
);
175 aluHandleDisconnect(pDevice
);
179 FrameSize
= aluFrameSizeFromFormat(pDevice
->Format
);
180 FragSize
= pDevice
->UpdateSize
* FrameSize
;
182 IDirectSoundBuffer_GetCurrentPosition(pData
->DSsbuffer
, &LastCursor
, NULL
);
183 while(!pData
->killNow
)
185 // Get current play and write cursors
186 IDirectSoundBuffer_GetCurrentPosition(pData
->DSsbuffer
, &PlayCursor
, NULL
);
187 avail
= (PlayCursor
-LastCursor
+DSBCaps
.dwBufferBytes
) % DSBCaps
.dwBufferBytes
;
193 err
= IDirectSoundBuffer_Play(pData
->DSsbuffer
, 0, 0, DSBPLAY_LOOPING
);
196 AL_PRINT("Failed to play buffer: 0x%lx\n", err
);
197 aluHandleDisconnect(pDevice
);
204 avail
-= avail
%FragSize
;
206 // Lock output buffer
209 err
= IDirectSoundBuffer_Lock(pData
->DSsbuffer
, LastCursor
, avail
, &WritePtr1
, &WriteCnt1
, &WritePtr2
, &WriteCnt2
, 0);
211 // If the buffer is lost, restore it and lock
212 if(err
== DSERR_BUFFERLOST
)
214 err
= IDirectSoundBuffer_Restore(pData
->DSsbuffer
);
219 err
= IDirectSoundBuffer_Lock(pData
->DSsbuffer
, 0, DSBCaps
.dwBufferBytes
, &WritePtr1
, &WriteCnt1
, &WritePtr2
, &WriteCnt2
, 0);
223 // Successfully locked the output buffer
226 // If we have an active context, mix data directly into output buffer otherwise fill with silence
227 aluMixData(pDevice
, WritePtr1
, WriteCnt1
/FrameSize
);
228 aluMixData(pDevice
, WritePtr2
, WriteCnt2
/FrameSize
);
230 // Unlock output buffer only when successfully locked
231 IDirectSoundBuffer_Unlock(pData
->DSsbuffer
, WritePtr1
, WriteCnt1
, WritePtr2
, WriteCnt2
);
235 AL_PRINT("Buffer lock error: %#lx\n", err
);
236 aluHandleDisconnect(pDevice
);
240 // Update old write cursor location
241 LastCursor
+= WriteCnt1
+WriteCnt2
;
242 LastCursor
%= DSBCaps
.dwBufferBytes
;
248 static ALCboolean
DSoundOpenPlayback(ALCdevice
*device
, const ALCchar
*deviceName
)
250 DSoundData
*pData
= NULL
;
258 deviceName
= dsDevice
;
259 else if(strcmp(deviceName
, dsDevice
) != 0)
265 hr
= pDirectSoundEnumerateA(DSoundEnumDevices
, NULL
);
267 AL_PRINT("Error enumerating DirectSound devices (%#x)!\n", (unsigned int)hr
);
270 for(i
= 0;i
< NumDevices
;i
++)
272 if(strcmp(deviceName
, DeviceList
[i
].name
) == 0)
274 guid
= &DeviceList
[i
].guid
;
282 //Initialise requested device
283 pData
= calloc(1, sizeof(DSoundData
));
286 alcSetError(device
, ALC_OUT_OF_MEMORY
);
290 //DirectSound Init code
291 hr
= pDirectSoundCreate(guid
, &pData
->lpDS
, NULL
);
293 hr
= IDirectSound_SetCooperativeLevel(pData
->lpDS
, GetForegroundWindow(), DSSCL_PRIORITY
);
297 IDirectSound_Release(pData
->lpDS
);
299 AL_PRINT("Device init failed: 0x%08lx\n", hr
);
303 device
->szDeviceName
= strdup(deviceName
);
304 device
->ExtraData
= pData
;
308 static void DSoundClosePlayback(ALCdevice
*device
)
310 DSoundData
*pData
= device
->ExtraData
;
312 IDirectSound_Release(pData
->lpDS
);
314 device
->ExtraData
= NULL
;
317 static ALCboolean
DSoundResetPlayback(ALCdevice
*device
)
319 DSoundData
*pData
= (DSoundData
*)device
->ExtraData
;
320 DSBUFFERDESC DSBDescription
;
321 WAVEFORMATEXTENSIBLE OutputType
;
327 memset(&OutputType
, 0, sizeof(OutputType
));
329 hr
= IDirectSound_GetSpeakerConfig(pData
->lpDS
, &speakers
);
330 if(SUCCEEDED(hr
) && ConfigValueExists(NULL
, "format"))
332 if(aluChannelsFromFormat(device
->Format
) == 1)
333 speakers
= DSSPEAKER_COMBINED(DSSPEAKER_MONO
, 0);
334 else if(aluChannelsFromFormat(device
->Format
) == 2)
335 speakers
= DSSPEAKER_COMBINED(DSSPEAKER_STEREO
, 0);
336 else if(aluChannelsFromFormat(device
->Format
) == 4)
337 speakers
= DSSPEAKER_COMBINED(DSSPEAKER_QUAD
, 0);
338 else if(aluChannelsFromFormat(device
->Format
) == 6)
339 speakers
= DSSPEAKER_COMBINED(DSSPEAKER_5POINT1
, 0);
340 else if(aluChannelsFromFormat(device
->Format
) == 8)
341 speakers
= DSSPEAKER_COMBINED(DSSPEAKER_7POINT1
, 0);
344 AL_PRINT("Unknown format: 0x%x\n", device
->Format
);
350 speakers
= DSSPEAKER_CONFIG(speakers
);
351 if(speakers
== DSSPEAKER_MONO
)
353 if(aluBytesFromFormat(device
->Format
) == 1)
354 format
= AL_FORMAT_MONO8
;
355 else if(aluBytesFromFormat(device
->Format
) == 2)
356 format
= AL_FORMAT_MONO16
;
357 else if(aluBytesFromFormat(device
->Format
) == 4)
358 format
= AL_FORMAT_MONO_FLOAT32
;
359 OutputType
.dwChannelMask
= SPEAKER_FRONT_CENTER
;
361 else if(speakers
== DSSPEAKER_STEREO
)
363 if(aluBytesFromFormat(device
->Format
) == 1)
364 format
= AL_FORMAT_STEREO8
;
365 else if(aluBytesFromFormat(device
->Format
) == 2)
366 format
= AL_FORMAT_STEREO16
;
367 else if(aluBytesFromFormat(device
->Format
) == 4)
368 format
= AL_FORMAT_STEREO_FLOAT32
;
369 OutputType
.dwChannelMask
= SPEAKER_FRONT_LEFT
|
372 else if(speakers
== DSSPEAKER_QUAD
)
374 if(aluBytesFromFormat(device
->Format
) == 1)
375 format
= AL_FORMAT_QUAD8
;
376 else if(aluBytesFromFormat(device
->Format
) == 2)
377 format
= AL_FORMAT_QUAD16
;
378 else if(aluBytesFromFormat(device
->Format
) == 4)
379 format
= AL_FORMAT_QUAD32
;
380 OutputType
.dwChannelMask
= SPEAKER_FRONT_LEFT
|
381 SPEAKER_FRONT_RIGHT
|
385 else if(speakers
== DSSPEAKER_5POINT1
)
387 if(aluBytesFromFormat(device
->Format
) == 1)
388 format
= AL_FORMAT_51CHN8
;
389 else if(aluBytesFromFormat(device
->Format
) == 2)
390 format
= AL_FORMAT_51CHN16
;
391 else if(aluBytesFromFormat(device
->Format
) == 4)
392 format
= AL_FORMAT_51CHN32
;
393 OutputType
.dwChannelMask
= SPEAKER_FRONT_LEFT
|
394 SPEAKER_FRONT_RIGHT
|
395 SPEAKER_FRONT_CENTER
|
396 SPEAKER_LOW_FREQUENCY
|
400 else if(speakers
== DSSPEAKER_7POINT1
)
402 if(aluBytesFromFormat(device
->Format
) == 1)
403 format
= AL_FORMAT_71CHN8
;
404 else if(aluBytesFromFormat(device
->Format
) == 2)
405 format
= AL_FORMAT_71CHN16
;
406 else if(aluBytesFromFormat(device
->Format
) == 4)
407 format
= AL_FORMAT_71CHN32
;
408 OutputType
.dwChannelMask
= SPEAKER_FRONT_LEFT
|
409 SPEAKER_FRONT_RIGHT
|
410 SPEAKER_FRONT_CENTER
|
411 SPEAKER_LOW_FREQUENCY
|
418 format
= device
->Format
;
419 frameSize
= aluFrameSizeFromFormat(format
);
421 OutputType
.Format
.wFormatTag
= WAVE_FORMAT_PCM
;
422 OutputType
.Format
.nChannels
= aluChannelsFromFormat(format
);
423 OutputType
.Format
.wBitsPerSample
= aluBytesFromFormat(format
) * 8;
424 OutputType
.Format
.nBlockAlign
= OutputType
.Format
.nChannels
*OutputType
.Format
.wBitsPerSample
/8;
425 OutputType
.Format
.nSamplesPerSec
= device
->Frequency
;
426 OutputType
.Format
.nAvgBytesPerSec
= OutputType
.Format
.nSamplesPerSec
*OutputType
.Format
.nBlockAlign
;
427 OutputType
.Format
.cbSize
= 0;
430 if(OutputType
.Format
.nChannels
> 2 || OutputType
.Format
.wBitsPerSample
> 16)
432 OutputType
.Format
.wFormatTag
= WAVE_FORMAT_EXTENSIBLE
;
433 OutputType
.Samples
.wValidBitsPerSample
= OutputType
.Format
.wBitsPerSample
;
434 OutputType
.Format
.cbSize
= 22;
435 if(OutputType
.Format
.wBitsPerSample
== 32)
436 OutputType
.SubFormat
= KSDATAFORMAT_SUBTYPE_IEEE_FLOAT
;
438 OutputType
.SubFormat
= KSDATAFORMAT_SUBTYPE_PCM
;
444 memset(&DSBDescription
,0,sizeof(DSBUFFERDESC
));
445 DSBDescription
.dwSize
=sizeof(DSBUFFERDESC
);
446 DSBDescription
.dwFlags
=DSBCAPS_PRIMARYBUFFER
;
447 hr
= IDirectSound_CreateSoundBuffer(pData
->lpDS
, &DSBDescription
, &pData
->DSpbuffer
, NULL
);
450 hr
= IDirectSoundBuffer_SetFormat(pData
->DSpbuffer
,&OutputType
.Format
);
455 memset(&DSBDescription
,0,sizeof(DSBUFFERDESC
));
456 DSBDescription
.dwSize
=sizeof(DSBUFFERDESC
);
457 DSBDescription
.dwFlags
=DSBCAPS_GLOBALFOCUS
|DSBCAPS_GETCURRENTPOSITION2
;
458 DSBDescription
.dwBufferBytes
=device
->UpdateSize
* device
->NumUpdates
* frameSize
;
459 DSBDescription
.lpwfxFormat
=&OutputType
.Format
;
460 hr
= IDirectSound_CreateSoundBuffer(pData
->lpDS
, &DSBDescription
, &pData
->DSsbuffer
, NULL
);
465 device
->TimeRes
= (ALuint64
)device
->UpdateSize
* 1000000000 /
467 device
->Format
= format
;
468 SetDefaultWFXChannelOrder(device
);
469 pData
->thread
= StartThread(DSoundProc
, device
);
476 if (pData
->DSsbuffer
)
477 IDirectSoundBuffer_Release(pData
->DSsbuffer
);
478 pData
->DSsbuffer
= NULL
;
479 if (pData
->DSpbuffer
)
480 IDirectSoundBuffer_Release(pData
->DSpbuffer
);
481 pData
->DSpbuffer
= NULL
;
488 static void DSoundStopPlayback(ALCdevice
*device
)
490 DSoundData
*pData
= device
->ExtraData
;
496 StopThread(pData
->thread
);
497 pData
->thread
= NULL
;
501 IDirectSoundBuffer_Release(pData
->DSsbuffer
);
502 pData
->DSsbuffer
= NULL
;
503 if (pData
->DSpbuffer
)
504 IDirectSoundBuffer_Release(pData
->DSpbuffer
);
505 pData
->DSpbuffer
= NULL
;
509 static ALCboolean
DSoundOpenCapture(ALCdevice
*pDevice
, const ALCchar
*deviceName
)
516 static void DSoundCloseCapture(ALCdevice
*pDevice
)
521 static void DSoundStartCapture(ALCdevice
*pDevice
)
526 static void DSoundStopCapture(ALCdevice
*pDevice
)
531 static void DSoundCaptureSamples(ALCdevice
*pDevice
, ALCvoid
*pBuffer
, ALCuint lSamples
)
538 static ALCuint
DSoundAvailableSamples(ALCdevice
*pDevice
)
544 static ALuint64
DSoundGetTime(ALCdevice
*Device
)
546 return Device
->SamplesPlayed
* 1000000000 / Device
->Frequency
;
550 BackendFuncs DSoundFuncs
= {
559 DSoundCaptureSamples
,
560 DSoundAvailableSamples
,
565 void alcDSoundInit(BackendFuncs
*FuncList
)
567 *FuncList
= DSoundFuncs
;
570 void alcDSoundDeinit(void)
574 for(i
= 0;i
< NumDevices
;++i
)
575 free(DeviceList
[i
].name
);
583 FreeLibrary(ds_handle
);
589 void alcDSoundProbe(int type
)
591 if(!DSoundLoad()) return;
593 if(type
== DEVICE_PROBE
)
594 AppendDeviceList(dsDevice
);
595 else if(type
== ALL_DEVICE_PROBE
)
600 for(i
= 0;i
< NumDevices
;++i
)
601 free(DeviceList
[i
].name
);
606 hr
= pDirectSoundEnumerateA(DSoundEnumDevices
, NULL
);
608 AL_PRINT("Error enumerating DirectSound devices (%#x)!\n", (unsigned int)hr
);
611 for(i
= 0;i
< NumDevices
;i
++)
612 AppendAllDeviceList(DeviceList
[i
].name
);