diff options
Diffstat (limited to 'Alc')
| -rw-r--r-- | Alc/dsound.c | 60 |
1 files changed, 36 insertions, 24 deletions
diff --git a/Alc/dsound.c b/Alc/dsound.c index 55067008..11cce150 100644 --- a/Alc/dsound.c +++ b/Alc/dsound.c @@ -71,29 +71,38 @@ static ALuint DSoundProc(ALvoid *ptr) { ALCdevice *pDevice = (ALCdevice*)ptr; DSoundData *pData = (DSoundData*)pDevice->ExtraData; + DSBCAPS DSBCaps; DWORD LastCursor = 0; DWORD PlayCursor; VOID *WritePtr1, *WritePtr2; DWORD WriteCnt1, WriteCnt2; - DWORD BufferSize; + DWORD FragSize; DWORD avail; HRESULT err; - BufferSize = pDevice->UpdateSize * num_frags * - aluBytesFromFormat(pDevice->Format) * - aluChannelsFromFormat(pDevice->Format); + memset(&DSBCaps, 0, sizeof(DSBCaps)); + DSBCaps.dwSize = sizeof(DSBCaps); + err = IDirectSoundBuffer_GetCaps(pData->DSsbuffer, &DSBCaps); + if(FAILED(err)) + { + AL_PRINT("Failed to get buffer caps: 0x%lx\n", err); + return 1; + } + FragSize = DSBCaps.dwBufferBytes / num_frags; + IDirectSoundBuffer_GetCurrentPosition(pData->DSsbuffer, &LastCursor, NULL); while(!pData->killNow) { // Get current play and write cursors IDirectSoundBuffer_GetCurrentPosition(pData->DSsbuffer, &PlayCursor, NULL); - avail = (PlayCursor-LastCursor+BufferSize) % BufferSize; + avail = (PlayCursor-LastCursor+DSBCaps.dwBufferBytes) % DSBCaps.dwBufferBytes; - if(avail < BufferSize/num_frags) + if(avail < FragSize) { Sleep(1); continue; } + avail -= avail%FragSize; // Lock output buffer WriteCnt1 = 0; @@ -127,7 +136,7 @@ static ALuint DSoundProc(ALvoid *ptr) // Update old write cursor location LastCursor += WriteCnt1+WriteCnt2; - LastCursor %= BufferSize; + LastCursor %= DSBCaps.dwBufferBytes; } return 0; @@ -140,6 +149,7 @@ static ALCboolean DSoundOpenPlayback(ALCdevice *device, const ALCchar *deviceNam WAVEFORMATEXTENSIBLE OutputType; DWORD frameSize = 0; LPGUID guid = NULL; + ALenum format = 0; DWORD speakers; HRESULT hr; @@ -207,23 +217,23 @@ static ALCboolean DSoundOpenPlayback(ALCdevice *device, const ALCchar *deviceNam if(speakers == DSSPEAKER_MONO) { if(aluBytesFromFormat(device->Format) == 1) - device->Format = AL_FORMAT_MONO8; + format = AL_FORMAT_MONO8; else - device->Format = AL_FORMAT_MONO16; + format = AL_FORMAT_MONO16; } else if(speakers == DSSPEAKER_STEREO) { if(aluBytesFromFormat(device->Format) == 1) - device->Format = AL_FORMAT_STEREO8; + format = AL_FORMAT_STEREO8; else - device->Format = AL_FORMAT_STEREO16; + format = AL_FORMAT_STEREO16; } else if(speakers == DSSPEAKER_QUAD) { if(aluBytesFromFormat(device->Format) == 1) - device->Format = AL_FORMAT_QUAD8; + format = AL_FORMAT_QUAD8; else - device->Format = AL_FORMAT_QUAD16; + format = AL_FORMAT_QUAD16; OutputType.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_BACK_LEFT | @@ -232,9 +242,9 @@ static ALCboolean DSoundOpenPlayback(ALCdevice *device, const ALCchar *deviceNam else if(speakers == DSSPEAKER_5POINT1) { if(aluBytesFromFormat(device->Format) == 1) - device->Format = AL_FORMAT_51CHN8; + format = AL_FORMAT_51CHN8; else - device->Format = AL_FORMAT_51CHN16; + format = AL_FORMAT_51CHN16; OutputType.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | @@ -245,9 +255,9 @@ static ALCboolean DSoundOpenPlayback(ALCdevice *device, const ALCchar *deviceNam else if(speakers == DSSPEAKER_7POINT1) { if(aluBytesFromFormat(device->Format) == 1) - device->Format = AL_FORMAT_71CHN8; + format = AL_FORMAT_71CHN8; else - device->Format = AL_FORMAT_71CHN16; + format = AL_FORMAT_71CHN16; OutputType.dwChannelMask = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | @@ -257,18 +267,17 @@ static ALCboolean DSoundOpenPlayback(ALCdevice *device, const ALCchar *deviceNam SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT; } - frameSize = aluBytesFromFormat(device->Format) * - aluChannelsFromFormat(device->Format); + else + format = device->Format; + frameSize = aluBytesFromFormat(format) * aluChannelsFromFormat(format); OutputType.Format.wFormatTag = WAVE_FORMAT_PCM; - OutputType.Format.nChannels = aluChannelsFromFormat(device->Format); - OutputType.Format.wBitsPerSample = aluBytesFromFormat(device->Format) * 8; + OutputType.Format.nChannels = aluChannelsFromFormat(format); + OutputType.Format.wBitsPerSample = aluBytesFromFormat(format) * 8; OutputType.Format.nBlockAlign = OutputType.Format.nChannels*OutputType.Format.wBitsPerSample/8; OutputType.Format.nSamplesPerSec = device->Frequency; OutputType.Format.nAvgBytesPerSec = OutputType.Format.nSamplesPerSec*OutputType.Format.nBlockAlign; OutputType.Format.cbSize = 0; - - device->UpdateSize /= num_frags; } if(OutputType.Format.nChannels > 2) @@ -296,7 +305,7 @@ static ALCboolean DSoundOpenPlayback(ALCdevice *device, const ALCchar *deviceNam memset(&DSBDescription,0,sizeof(DSBUFFERDESC)); DSBDescription.dwSize=sizeof(DSBUFFERDESC); DSBDescription.dwFlags=DSBCAPS_GLOBALFOCUS|DSBCAPS_GETCURRENTPOSITION2; - DSBDescription.dwBufferBytes=device->UpdateSize * num_frags * frameSize; + DSBDescription.dwBufferBytes=(device->UpdateSize/num_frags) * num_frags * frameSize; DSBDescription.lpwfxFormat=&OutputType.Format; hr = IDirectSound_CreateSoundBuffer(pData->lpDS, &DSBDescription, &pData->DSsbuffer, NULL); } @@ -325,6 +334,9 @@ static ALCboolean DSoundOpenPlayback(ALCdevice *device, const ALCchar *deviceNam return ALC_FALSE; } + device->Format = format; + device->UpdateSize /= num_frags; + return ALC_TRUE; } |