FORCE_ALIGN static int PlaybackThreadProc(void *arg)
{
ALCdevice *Device = (ALCdevice*)arg;
WinMMData *data = Device->ExtraData;
WAVEHDR *WaveHdr;
MSG msg;
SetRTPriority();
althrd_setname(althrd_current(), MIXER_THREAD_NAME);
while(GetMessage(&msg, NULL, 0, 0))
{
if(msg.message != WOM_DONE)
continue;
if(data->killNow)
{
if(ReadRef(&data->WaveBuffersCommitted) == 0)
break;
continue;
}
WaveHdr = ((WAVEHDR*)msg.lParam);
aluMixData(Device, WaveHdr->lpData, WaveHdr->dwBufferLength /
data->Format.nBlockAlign);
// Send buffer back to play more data
waveOutWrite(data->WaveHandle.Out, WaveHdr, sizeof(WAVEHDR));
IncrementRef(&data->WaveBuffersCommitted);
}
return 0;
}
static int CaptureThreadProc(void *arg)
{
ALCdevice *Device = (ALCdevice*)arg;
WinMMData *data = Device->ExtraData;
WAVEHDR *WaveHdr;
MSG msg;
althrd_setname(althrd_current(), "alsoft-record");
while(GetMessage(&msg, NULL, 0, 0))
{
if(msg.message != WIM_DATA)
continue;
/* Don't wait for other buffers to finish before quitting. We're
* closing so we don't need them. */
if(data->killNow)
break;
WaveHdr = ((WAVEHDR*)msg.lParam);
WriteRingBuffer(data->Ring, (ALubyte*)WaveHdr->lpData,
WaveHdr->dwBytesRecorded/data->Format.nBlockAlign);
// Send buffer back to capture more data
waveInAddBuffer(data->WaveHandle.In, WaveHdr, sizeof(WAVEHDR));
IncrementRef(&data->WaveBuffersCommitted);
}
return 0;
}
static int ALCwinmmCapture_captureProc(void *arg)
{
ALCwinmmCapture *self = arg;
WAVEHDR *WaveHdr;
MSG msg;
althrd_setname(althrd_current(), RECORD_THREAD_NAME);
while(GetMessage(&msg, NULL, 0, 0))
{
if(msg.message != WIM_DATA)
continue;
/* Don't wait for other buffers to finish before quitting. We're
* closing so we don't need them. */
if(ATOMIC_LOAD(&self->killNow, almemory_order_acquire))
break;
WaveHdr = ((WAVEHDR*)msg.lParam);
ll_ringbuffer_write(self->Ring, WaveHdr->lpData,
WaveHdr->dwBytesRecorded / self->Format.nBlockAlign
);
// Send buffer back to capture more data
waveInAddBuffer(self->InHdl, WaveHdr, sizeof(WAVEHDR));
IncrementRef(&self->WaveBuffersCommitted);
}
return 0;
}
FORCE_ALIGN static int ALCwinmmPlayback_mixerProc(void *arg)
{
ALCwinmmPlayback *self = arg;
ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
WAVEHDR *WaveHdr;
MSG msg;
SetRTPriority();
althrd_setname(althrd_current(), MIXER_THREAD_NAME);
while(GetMessage(&msg, NULL, 0, 0))
{
if(msg.message != WOM_DONE)
continue;
if(ATOMIC_LOAD(&self->killNow, almemory_order_acquire))
{
if(ReadRef(&self->WaveBuffersCommitted) == 0)
break;
continue;
}
WaveHdr = ((WAVEHDR*)msg.lParam);
ALCwinmmPlayback_lock(self);
aluMixData(device, WaveHdr->lpData, WaveHdr->dwBufferLength /
self->Format.nBlockAlign);
ALCwinmmPlayback_unlock(self);
// Send buffer back to play more data
waveOutWrite(self->OutHdl, WaveHdr, sizeof(WAVEHDR));
IncrementRef(&self->WaveBuffersCommitted);
}
return 0;
}
static ALCboolean ALCwinmmPlayback_start(ALCwinmmPlayback *self)
{
ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
ALbyte *BufferData;
ALint BufferSize;
ALuint i;
ATOMIC_STORE(&self->killNow, AL_FALSE, almemory_order_release);
if(althrd_create(&self->thread, ALCwinmmPlayback_mixerProc, self) != althrd_success)
return ALC_FALSE;
InitRef(&self->WaveBuffersCommitted, 0);
// Create 4 Buffers
BufferSize = device->UpdateSize*device->NumUpdates / 4;
BufferSize *= FrameSizeFromDevFmt(device->FmtChans, device->FmtType, device->AmbiOrder);
BufferData = calloc(4, BufferSize);
for(i = 0;i < 4;i++)
{
memset(&self->WaveBuffer[i], 0, sizeof(WAVEHDR));
self->WaveBuffer[i].dwBufferLength = BufferSize;
self->WaveBuffer[i].lpData = ((i==0) ? (CHAR*)BufferData :
(self->WaveBuffer[i-1].lpData +
self->WaveBuffer[i-1].dwBufferLength));
waveOutPrepareHeader(self->OutHdl, &self->WaveBuffer[i], sizeof(WAVEHDR));
waveOutWrite(self->OutHdl, &self->WaveBuffer[i], sizeof(WAVEHDR));
IncrementRef(&self->WaveBuffersCommitted);
}
return ALC_TRUE;
}
ALenum MidiSynth_selectSoundfonts(MidiSynth *self, ALCcontext *context, ALsizei count, const ALuint *ids)
{
ALCdevice *device = context->Device;
ALsoundfont **sfonts;
ALsizei i;
if(self->State != AL_INITIAL && self->State != AL_STOPPED)
return AL_INVALID_OPERATION;
sfonts = calloc(1, count * sizeof(sfonts[0]));
if(!sfonts) return AL_OUT_OF_MEMORY;
for(i = 0;i < count;i++)
{
if(ids[i] == 0)
sfonts[i] = ALsoundfont_getDefSoundfont(context);
else if(!(sfonts[i]=LookupSfont(device, ids[i])))
{
free(sfonts);
return AL_INVALID_VALUE;
}
}
for(i = 0;i < count;i++)
IncrementRef(&sfonts[i]->ref);
sfonts = ExchangePtr((XchgPtr*)&self->Soundfonts, sfonts);
count = ExchangeInt(&self->NumSoundfonts, count);
for(i = 0;i < count;i++)
DecrementRef(&sfonts[i]->ref);
free(sfonts);
return AL_NO_ERROR;
}
static ALCboolean WinMMStartPlayback(ALCdevice *device)
{
WinMMData *data = (WinMMData*)device->ExtraData;
ALbyte *BufferData;
ALint BufferSize;
ALuint i;
data->killNow = AL_FALSE;
if(althrd_create(&data->thread, PlaybackThreadProc, device) != althrd_success)
return ALC_FALSE;
InitRef(&data->WaveBuffersCommitted, 0);
// Create 4 Buffers
BufferSize = device->UpdateSize*device->NumUpdates / 4;
BufferSize *= FrameSizeFromDevFmt(device->FmtChans, device->FmtType);
BufferData = calloc(4, BufferSize);
for(i = 0; i < 4; i++)
{
memset(&data->WaveBuffer[i], 0, sizeof(WAVEHDR));
data->WaveBuffer[i].dwBufferLength = BufferSize;
data->WaveBuffer[i].lpData = ((i==0) ? (CHAR*)BufferData :
(data->WaveBuffer[i-1].lpData +
data->WaveBuffer[i-1].dwBufferLength));
waveOutPrepareHeader(data->WaveHandle.Out, &data->WaveBuffer[i], sizeof(WAVEHDR));
waveOutWrite(data->WaveHandle.Out, &data->WaveBuffer[i], sizeof(WAVEHDR));
IncrementRef(&data->WaveBuffersCommitted);
}
return ALC_TRUE;
}
void ReadLock(RWLock *lock)
{
LOCK(lock->read_entry_lock);
LOCK(lock->read_lock);
if(IncrementRef(&lock->read_count) == 1)
LOCK(lock->write_lock);
UNLOCK(lock->read_lock);
UNLOCK(lock->read_entry_lock);
}
AL_API void AL_APIENTRY alPresetFontsoundsSOFT(ALuint id, ALsizei count, const ALuint *fsids)
{
ALCdevice *device;
ALCcontext *context;
ALsfpreset *preset;
ALfontsound **sounds;
ALsizei i;
context = GetContextRef();
if(!context) return;
device = context->Device;
if(!(preset=LookupPreset(device, id)))
SET_ERROR_AND_GOTO(context, AL_INVALID_NAME, done);
if(count < 0)
SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
if(ReadRef(&preset->ref) != 0)
SET_ERROR_AND_GOTO(context, AL_INVALID_OPERATION, done);
if(count == 0)
sounds = NULL;
else
{
sounds = calloc(count, sizeof(sounds[0]));
if(!sounds)
SET_ERROR_AND_GOTO(context, AL_OUT_OF_MEMORY, done);
for(i = 0;i < count;i++)
{
if(!(sounds[i]=LookupFontsound(device, fsids[i])))
{
free(sounds);
SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
}
}
}
for(i = 0;i < count;i++)
IncrementRef(&sounds[i]->ref);
sounds = ExchangePtr((XchgPtr*)&preset->Sounds, sounds);
count = ExchangeInt(&preset->NumSounds, count);
for(i = 0;i < count;i++)
DecrementRef(&sounds[i]->ref);
free(sounds);
done:
ALCcontext_DecRef(context);
}
int alcnd_wait(alcnd_t *cond, almtx_t *mtx)
{
_int_alcnd_t *icond = cond->Ptr;
int res;
IncrementRef(&icond->wait_count);
LeaveCriticalSection(mtx);
res = WaitForMultipleObjects(2, icond->events, FALSE, INFINITE);
if(DecrementRef(&icond->wait_count) == 0 && res == WAIT_OBJECT_0+BROADCAST)
ResetEvent(icond->events[BROADCAST]);
EnterCriticalSection(mtx);
return althrd_success;
}
int alcnd_timedwait(alcnd_t *cond, almtx_t *mtx, const struct timespec *time_point)
{
_int_alcnd_t *icond = cond->Ptr;
struct timespec curtime;
DWORD sleeptime;
int res;
if(altimespec_get(&curtime, AL_TIME_UTC) != AL_TIME_UTC)
return althrd_error;
sleeptime = (time_point->tv_nsec - curtime.tv_nsec + 999999)/1000000;
sleeptime += (time_point->tv_sec - curtime.tv_sec)*1000;
IncrementRef(&icond->wait_count);
LeaveCriticalSection(mtx);
res = WaitForMultipleObjects(2, icond->events, FALSE, sleeptime);
if(DecrementRef(&icond->wait_count) == 0 && res == WAIT_OBJECT_0+BROADCAST)
ResetEvent(icond->events[BROADCAST]);
EnterCriticalSection(mtx);
return (res == WAIT_TIMEOUT) ? althrd_timedout : althrd_success;
}
static void ALeffectState_IncRef(ALeffectState *state)
{
uint ref;
ref = IncrementRef(&state->Ref);
TRACEREF("%p increasing refcount to %u\n", state, ref);
}
AL_API void AL_APIENTRY alSoundfontPresetsSOFT(ALuint id, ALsizei count, const ALuint *pids)
{
ALCdevice *device;
ALCcontext *context;
ALsoundfont *sfont;
ALsfpreset **presets;
ALsizei i;
context = GetContextRef();
if(!context) return;
device = context->Device;
if(id == 0)
SET_ERROR_AND_GOTO(context, AL_INVALID_OPERATION, done);
if(!(sfont=LookupSfont(device, id)))
SET_ERROR_AND_GOTO(context, AL_INVALID_NAME, done);
if(count < 0)
SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
WriteLock(&sfont->Lock);
if(ReadRef(&sfont->ref) != 0)
{
WriteUnlock(&sfont->Lock);
SET_ERROR_AND_GOTO(context, AL_INVALID_OPERATION, done);
}
if(count == 0)
presets = NULL;
else
{
presets = calloc(count, sizeof(presets[0]));
if(!presets)
{
WriteUnlock(&sfont->Lock);
SET_ERROR_AND_GOTO(context, AL_OUT_OF_MEMORY, done);
}
for(i = 0;i < count;i++)
{
if(!(presets[i]=LookupPreset(device, pids[i])))
{
free(presets);
WriteUnlock(&sfont->Lock);
SET_ERROR_AND_GOTO(context, AL_INVALID_VALUE, done);
}
}
}
for(i = 0;i < count;i++)
IncrementRef(&presets[i]->ref);
presets = ExchangePtr((XchgPtr*)&sfont->Presets, presets);
count = ExchangeInt(&sfont->NumPresets, count);
WriteUnlock(&sfont->Lock);
for(i = 0;i < count;i++)
DecrementRef(&presets[i]->ref);
free(presets);
done:
ALCcontext_DecRef(context);
}
ALvoid aluMixData(ALCdevice *device, ALvoid *buffer, ALsizei size)
{
ALuint SamplesToDo;
ALeffectslot **slot, **slot_end;
ALvoice *voice, *voice_end;
ALCcontext *ctx;
FPUCtl oldMode;
ALuint i, c;
SetMixerFPUMode(&oldMode);
while(size > 0)
{
ALfloat (*OutBuffer)[BUFFERSIZE];
ALuint OutChannels;
IncrementRef(&device->MixCount);
OutBuffer = device->DryBuffer;
OutChannels = device->NumChannels;
SamplesToDo = minu(size, BUFFERSIZE);
for(c = 0;c < OutChannels;c++)
memset(OutBuffer[c], 0, SamplesToDo*sizeof(ALfloat));
if(device->Hrtf)
{
/* Set OutBuffer/OutChannels to correspond to the actual output
* with HRTF. Make sure to clear them too. */
OutBuffer += OutChannels;
OutChannels = 2;
for(c = 0;c < OutChannels;c++)
memset(OutBuffer[c], 0, SamplesToDo*sizeof(ALfloat));
}
V0(device->Backend,lock)();
V(device->Synth,process)(SamplesToDo, OutBuffer, OutChannels);
ctx = ATOMIC_LOAD(&device->ContextList);
while(ctx)
{
ALenum DeferUpdates = ctx->DeferUpdates;
ALenum UpdateSources = AL_FALSE;
if(!DeferUpdates)
UpdateSources = ATOMIC_EXCHANGE(ALenum, &ctx->UpdateSources, AL_FALSE);
if(UpdateSources)
CalcListenerParams(ctx->Listener);
/* source processing */
voice = ctx->Voices;
voice_end = voice + ctx->VoiceCount;
while(voice != voice_end)
{
ALsource *source = voice->Source;
if(!source) goto next;
if(source->state != AL_PLAYING && source->state != AL_PAUSED)
{
voice->Source = NULL;
goto next;
}
if(!DeferUpdates && (ATOMIC_EXCHANGE(ALenum, &source->NeedsUpdate, AL_FALSE) ||
UpdateSources))
voice->Update(voice, source, ctx);
if(source->state != AL_PAUSED)
MixSource(voice, source, device, SamplesToDo);
next:
voice++;
}
/* effect slot processing */
slot = VECTOR_ITER_BEGIN(ctx->ActiveAuxSlots);
slot_end = VECTOR_ITER_END(ctx->ActiveAuxSlots);
while(slot != slot_end)
{
if(!DeferUpdates && ATOMIC_EXCHANGE(ALenum, &(*slot)->NeedsUpdate, AL_FALSE))
V((*slot)->EffectState,update)(device, *slot);
V((*slot)->EffectState,process)(SamplesToDo, (*slot)->WetBuffer[0],
device->DryBuffer, device->NumChannels);
for(i = 0;i < SamplesToDo;i++)
(*slot)->WetBuffer[0][i] = 0.0f;
slot++;
}
ctx = ctx->next;
}
slot = &device->DefaultSlot;
if(*slot != NULL)
{
if(ATOMIC_EXCHANGE(ALenum, &(*slot)->NeedsUpdate, AL_FALSE))
V((*slot)->EffectState,update)(device, *slot);
V((*slot)->EffectState,process)(SamplesToDo, (*slot)->WetBuffer[0],
device->DryBuffer, device->NumChannels);
for(i = 0;i < SamplesToDo;i++)
(*slot)->WetBuffer[0][i] = 0.0f;
}
/* Increment the clock time. Every second's worth of samples is
* converted and added to clock base so that large sample counts don't
* overflow during conversion. This also guarantees an exact, stable
* conversion. */
device->SamplesDone += SamplesToDo;
device->ClockBase += (device->SamplesDone/device->Frequency) * DEVICE_CLOCK_RES;
device->SamplesDone %= device->Frequency;
V0(device->Backend,unlock)();
if(device->Hrtf)
{
HrtfMixerFunc HrtfMix = SelectHrtfMixer();
ALuint irsize = GetHrtfIrSize(device->Hrtf);
for(c = 0;c < device->NumChannels;c++)
HrtfMix(OutBuffer, device->DryBuffer[c], 0, device->Hrtf_Offset,
0, irsize, &device->Hrtf_Params[c], &device->Hrtf_State[c],
SamplesToDo
);
device->Hrtf_Offset += SamplesToDo;
}
else if(device->Bs2b)
{
/* Apply binaural/crossfeed filter */
for(i = 0;i < SamplesToDo;i++)
{
float samples[2];
samples[0] = device->DryBuffer[0][i];
samples[1] = device->DryBuffer[1][i];
bs2b_cross_feed(device->Bs2b, samples);
device->DryBuffer[0][i] = samples[0];
device->DryBuffer[1][i] = samples[1];
}
}
if(buffer)
{
#define WRITE(T, a, b, c, d) do { \
Write_##T((a), (b), (c), (d)); \
buffer = (T*)buffer + (c)*(d); \
} while(0)
switch(device->FmtType)
{
case DevFmtByte:
WRITE(ALbyte, OutBuffer, buffer, SamplesToDo, OutChannels);
break;
case DevFmtUByte:
WRITE(ALubyte, OutBuffer, buffer, SamplesToDo, OutChannels);
break;
case DevFmtShort:
WRITE(ALshort, OutBuffer, buffer, SamplesToDo, OutChannels);
break;
case DevFmtUShort:
WRITE(ALushort, OutBuffer, buffer, SamplesToDo, OutChannels);
break;
case DevFmtInt:
WRITE(ALint, OutBuffer, buffer, SamplesToDo, OutChannels);
break;
case DevFmtUInt:
WRITE(ALuint, OutBuffer, buffer, SamplesToDo, OutChannels);
break;
case DevFmtFloat:
WRITE(ALfloat, OutBuffer, buffer, SamplesToDo, OutChannels);
break;
}
#undef WRITE
}
size -= SamplesToDo;
IncrementRef(&device->MixCount);
}
RestoreFPUMode(&oldMode);
}
void WriteLock(RWLock *lock)
{
if(IncrementRef(&lock->write_count) == 1)
LOCK(lock->read_lock);
LOCK(lock->write_lock);
}
static ALCenum WinMMOpenCapture(ALCdevice *Device, const ALCchar *deviceName)
{
const al_string *iter, *end;
ALbyte *BufferData = NULL;
DWORD CapturedDataSize;
WinMMData *data = NULL;
ALint BufferSize;
UINT DeviceID;
MMRESULT res;
ALuint i;
if(VECTOR_SIZE(CaptureDevices) == 0)
ProbeCaptureDevices();
// Find the Device ID matching the deviceName if valid
iter = VECTOR_ITER_BEGIN(CaptureDevices);
end = VECTOR_ITER_END(CaptureDevices);
for(; iter != end; iter++)
{
if(!al_string_empty(*iter) &&
(!deviceName || al_string_cmp_cstr(*iter, deviceName) == 0))
{
DeviceID = (UINT)(iter - VECTOR_ITER_BEGIN(CaptureDevices));
break;
}
}
if(iter == end)
return ALC_INVALID_VALUE;
switch(Device->FmtChans)
{
case DevFmtMono:
case DevFmtStereo:
break;
case DevFmtQuad:
case DevFmtX51:
case DevFmtX51Side:
case DevFmtX61:
case DevFmtX71:
return ALC_INVALID_ENUM;
}
switch(Device->FmtType)
{
case DevFmtUByte:
case DevFmtShort:
case DevFmtInt:
case DevFmtFloat:
break;
case DevFmtByte:
case DevFmtUShort:
case DevFmtUInt:
return ALC_INVALID_ENUM;
}
data = calloc(1, sizeof(*data));
if(!data)
return ALC_OUT_OF_MEMORY;
Device->ExtraData = data;
memset(&data->Format, 0, sizeof(WAVEFORMATEX));
data->Format.wFormatTag = ((Device->FmtType == DevFmtFloat) ?
WAVE_FORMAT_IEEE_FLOAT : WAVE_FORMAT_PCM);
data->Format.nChannels = ChannelsFromDevFmt(Device->FmtChans);
data->Format.wBitsPerSample = BytesFromDevFmt(Device->FmtType) * 8;
data->Format.nBlockAlign = data->Format.wBitsPerSample *
data->Format.nChannels / 8;
data->Format.nSamplesPerSec = Device->Frequency;
data->Format.nAvgBytesPerSec = data->Format.nSamplesPerSec *
data->Format.nBlockAlign;
data->Format.cbSize = 0;
if((res=waveInOpen(&data->WaveHandle.In, DeviceID, &data->Format, (DWORD_PTR)&WaveInProc, (DWORD_PTR)Device, CALLBACK_FUNCTION)) != MMSYSERR_NOERROR)
{
ERR("waveInOpen failed: %u\n", res);
goto failure;
}
// Allocate circular memory buffer for the captured audio
CapturedDataSize = Device->UpdateSize*Device->NumUpdates;
// Make sure circular buffer is at least 100ms in size
if(CapturedDataSize < (data->Format.nSamplesPerSec / 10))
CapturedDataSize = data->Format.nSamplesPerSec / 10;
data->Ring = CreateRingBuffer(data->Format.nBlockAlign, CapturedDataSize);
if(!data->Ring)
goto failure;
InitRef(&data->WaveBuffersCommitted, 0);
// Create 4 Buffers of 50ms each
BufferSize = data->Format.nAvgBytesPerSec / 20;
BufferSize -= (BufferSize % data->Format.nBlockAlign);
BufferData = calloc(4, BufferSize);
if(!BufferData)
goto failure;
for(i = 0; i < 4; i++)
{
memset(&data->WaveBuffer[i], 0, sizeof(WAVEHDR));
data->WaveBuffer[i].dwBufferLength = BufferSize;
data->WaveBuffer[i].lpData = ((i==0) ? (CHAR*)BufferData :
(data->WaveBuffer[i-1].lpData +
data->WaveBuffer[i-1].dwBufferLength));
data->WaveBuffer[i].dwFlags = 0;
data->WaveBuffer[i].dwLoops = 0;
waveInPrepareHeader(data->WaveHandle.In, &data->WaveBuffer[i], sizeof(WAVEHDR));
waveInAddBuffer(data->WaveHandle.In, &data->WaveBuffer[i], sizeof(WAVEHDR));
IncrementRef(&data->WaveBuffersCommitted);
}
if(althrd_create(&data->thread, CaptureThreadProc, Device) != althrd_success)
goto failure;
al_string_copy(&Device->DeviceName, VECTOR_ELEM(CaptureDevices, DeviceID));
return ALC_NO_ERROR;
failure:
if(BufferData)
{
for(i = 0; i < 4; i++)
waveInUnprepareHeader(data->WaveHandle.In, &data->WaveBuffer[i], sizeof(WAVEHDR));
free(BufferData);
}
if(data->Ring)
DestroyRingBuffer(data->Ring);
if(data->WaveHandle.In)
waveInClose(data->WaveHandle.In);
free(data);
Device->ExtraData = NULL;
return ALC_INVALID_VALUE;
}
static ALCenum ALCwinmmCapture_open(ALCwinmmCapture *self, const ALCchar *name)
{
ALCdevice *device = STATIC_CAST(ALCbackend, self)->mDevice;
const al_string *iter;
ALbyte *BufferData = NULL;
DWORD CapturedDataSize;
ALint BufferSize;
UINT DeviceID;
MMRESULT res;
ALuint i;
if(VECTOR_SIZE(CaptureDevices) == 0)
ProbeCaptureDevices();
// Find the Device ID matching the deviceName if valid
#define MATCH_DEVNAME(iter) (!alstr_empty(*(iter)) && (!name || alstr_cmp_cstr(*iter, name) == 0))
VECTOR_FIND_IF(iter, const al_string, CaptureDevices, MATCH_DEVNAME);
if(iter == VECTOR_END(CaptureDevices))
return ALC_INVALID_VALUE;
#undef MATCH_DEVNAME
DeviceID = (UINT)(iter - VECTOR_BEGIN(CaptureDevices));
switch(device->FmtChans)
{
case DevFmtMono:
case DevFmtStereo:
break;
case DevFmtQuad:
case DevFmtX51:
case DevFmtX51Rear:
case DevFmtX61:
case DevFmtX71:
case DevFmtAmbi3D:
return ALC_INVALID_ENUM;
}
switch(device->FmtType)
{
case DevFmtUByte:
case DevFmtShort:
case DevFmtInt:
case DevFmtFloat:
break;
case DevFmtByte:
case DevFmtUShort:
case DevFmtUInt:
return ALC_INVALID_ENUM;
}
memset(&self->Format, 0, sizeof(WAVEFORMATEX));
self->Format.wFormatTag = ((device->FmtType == DevFmtFloat) ?
WAVE_FORMAT_IEEE_FLOAT : WAVE_FORMAT_PCM);
self->Format.nChannels = ChannelsFromDevFmt(device->FmtChans, device->AmbiOrder);
self->Format.wBitsPerSample = BytesFromDevFmt(device->FmtType) * 8;
self->Format.nBlockAlign = self->Format.wBitsPerSample *
self->Format.nChannels / 8;
self->Format.nSamplesPerSec = device->Frequency;
self->Format.nAvgBytesPerSec = self->Format.nSamplesPerSec *
self->Format.nBlockAlign;
self->Format.cbSize = 0;
if((res=waveInOpen(&self->InHdl, DeviceID, &self->Format, (DWORD_PTR)&ALCwinmmCapture_waveInProc, (DWORD_PTR)self, CALLBACK_FUNCTION)) != MMSYSERR_NOERROR)
{
ERR("waveInOpen failed: %u\n", res);
goto failure;
}
// Allocate circular memory buffer for the captured audio
CapturedDataSize = device->UpdateSize*device->NumUpdates;
// Make sure circular buffer is at least 100ms in size
if(CapturedDataSize < (self->Format.nSamplesPerSec / 10))
CapturedDataSize = self->Format.nSamplesPerSec / 10;
self->Ring = ll_ringbuffer_create(CapturedDataSize, self->Format.nBlockAlign, false);
if(!self->Ring) goto failure;
InitRef(&self->WaveBuffersCommitted, 0);
// Create 4 Buffers of 50ms each
BufferSize = self->Format.nAvgBytesPerSec / 20;
BufferSize -= (BufferSize % self->Format.nBlockAlign);
BufferData = calloc(4, BufferSize);
if(!BufferData) goto failure;
for(i = 0;i < 4;i++)
{
memset(&self->WaveBuffer[i], 0, sizeof(WAVEHDR));
self->WaveBuffer[i].dwBufferLength = BufferSize;
self->WaveBuffer[i].lpData = ((i==0) ? (CHAR*)BufferData :
(self->WaveBuffer[i-1].lpData +
self->WaveBuffer[i-1].dwBufferLength));
self->WaveBuffer[i].dwFlags = 0;
self->WaveBuffer[i].dwLoops = 0;
waveInPrepareHeader(self->InHdl, &self->WaveBuffer[i], sizeof(WAVEHDR));
waveInAddBuffer(self->InHdl, &self->WaveBuffer[i], sizeof(WAVEHDR));
IncrementRef(&self->WaveBuffersCommitted);
}
ATOMIC_STORE(&self->killNow, AL_FALSE, almemory_order_release);
if(althrd_create(&self->thread, ALCwinmmCapture_captureProc, self) != althrd_success)
goto failure;
alstr_copy(&device->DeviceName, VECTOR_ELEM(CaptureDevices, DeviceID));
return ALC_NO_ERROR;
failure:
if(BufferData)
{
for(i = 0;i < 4;i++)
waveInUnprepareHeader(self->InHdl, &self->WaveBuffer[i], sizeof(WAVEHDR));
free(BufferData);
}
ll_ringbuffer_free(self->Ring);
self->Ring = NULL;
if(self->InHdl)
waveInClose(self->InHdl);
self->InHdl = NULL;
return ALC_INVALID_VALUE;
}
