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FAudio.c
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/* FAudio - XAudio Reimplementation for FNA
*
* Copyright (c) 2011-2024 Ethan Lee, Luigi Auriemma, and the MonoGame Team
*
* This software is provided 'as-is', without any express or implied warranty.
* In no event will the authors be held liable for any damages arising from
* the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software in a
* product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source distribution.
*
* Ethan "flibitijibibo" Lee <flibitijibibo@flibitijibibo.com>
*
*/
#include "FAudio_internal.h"
#define MAKE_SUBFORMAT_GUID(guid, fmt) \
FAudioGUID DATAFORMAT_SUBTYPE_##guid = \
{ \
(uint16_t) (fmt), \
0x0000, \
0x0010, \
{ \
0x80, \
0x00, \
0x00, \
0xAA, \
0x00, \
0x38, \
0x9B, \
0x71 \
} \
}
MAKE_SUBFORMAT_GUID(PCM, 1);
MAKE_SUBFORMAT_GUID(ADPCM, 2);
MAKE_SUBFORMAT_GUID(IEEE_FLOAT, 3);
MAKE_SUBFORMAT_GUID(XMAUDIO2, FAUDIO_FORMAT_XMAUDIO2);
MAKE_SUBFORMAT_GUID(WMAUDIO2, FAUDIO_FORMAT_WMAUDIO2);
MAKE_SUBFORMAT_GUID(WMAUDIO3, FAUDIO_FORMAT_WMAUDIO3);
MAKE_SUBFORMAT_GUID(WMAUDIO_LOSSLESS, FAUDIO_FORMAT_WMAUDIO_LOSSLESS);
#undef MAKE_SUBFORMAT_GUID
#ifdef FAUDIO_DUMP_VOICES
static void FAudio_DUMPVOICE_Init(const FAudioSourceVoice *voice);
static void FAudio_DUMPVOICE_Finalize(const FAudioSourceVoice *voice);
static void FAudio_DUMPVOICE_WriteBuffer(
const FAudioSourceVoice *voice,
const FAudioBuffer *pBuffer,
const FAudioBufferWMA *pBufferWMA,
const uint32_t playBegin,
const uint32_t playLength
);
#endif /* FAUDIO_DUMP_VOICES */
/* FAudio Version */
uint32_t FAudioLinkedVersion(void)
{
return FAUDIO_COMPILED_VERSION;
}
/* FAudio Interface */
uint32_t FAudioCreate(
FAudio **ppFAudio,
uint32_t Flags,
FAudioProcessor XAudio2Processor
) {
FAudioCOMConstructEXT(ppFAudio, FAUDIO_TARGET_VERSION);
FAudio_Initialize(*ppFAudio, Flags, XAudio2Processor);
return 0;
}
uint32_t FAudioCOMConstructEXT(FAudio **ppFAudio, uint8_t version)
{
return FAudioCOMConstructWithCustomAllocatorEXT(
ppFAudio,
version,
FAudio_malloc,
FAudio_free,
FAudio_realloc
);
}
uint32_t FAudioCreateWithCustomAllocatorEXT(
FAudio **ppFAudio,
uint32_t Flags,
FAudioProcessor XAudio2Processor,
FAudioMallocFunc customMalloc,
FAudioFreeFunc customFree,
FAudioReallocFunc customRealloc
) {
FAudioCOMConstructWithCustomAllocatorEXT(
ppFAudio,
FAUDIO_TARGET_VERSION,
customMalloc,
customFree,
customRealloc
);
FAudio_Initialize(*ppFAudio, Flags, XAudio2Processor);
return 0;
}
uint32_t FAudioCOMConstructWithCustomAllocatorEXT(
FAudio **ppFAudio,
uint8_t version,
FAudioMallocFunc customMalloc,
FAudioFreeFunc customFree,
FAudioReallocFunc customRealloc
) {
#ifndef FAUDIO_DISABLE_DEBUGCONFIGURATION
FAudioDebugConfiguration debugInit = {0};
#endif /* FAUDIO_DISABLE_DEBUGCONFIGURATION */
FAudio_PlatformAddRef();
*ppFAudio = (FAudio*) customMalloc(sizeof(FAudio));
FAudio_zero(*ppFAudio, sizeof(FAudio));
(*ppFAudio)->version = version;
#ifndef FAUDIO_DISABLE_DEBUGCONFIGURATION
FAudio_SetDebugConfiguration(*ppFAudio, &debugInit, NULL);
#endif /* FAUDIO_DISABLE_DEBUGCONFIGURATION */
(*ppFAudio)->sourceLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE((*ppFAudio), (*ppFAudio)->sourceLock)
(*ppFAudio)->submixLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE((*ppFAudio), (*ppFAudio)->submixLock)
(*ppFAudio)->callbackLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE((*ppFAudio), (*ppFAudio)->callbackLock)
(*ppFAudio)->operationLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE((*ppFAudio), (*ppFAudio)->operationLock)
(*ppFAudio)->pMalloc = customMalloc;
(*ppFAudio)->pFree = customFree;
(*ppFAudio)->pRealloc = customRealloc;
(*ppFAudio)->refcount = 1;
return 0;
}
uint32_t FAudio_AddRef(FAudio *audio)
{
LOG_API_ENTER(audio)
audio->refcount += 1;
LOG_API_EXIT(audio)
return audio->refcount;
}
uint32_t FAudio_Release(FAudio *audio)
{
uint32_t refcount;
LOG_API_ENTER(audio)
audio->refcount -= 1;
refcount = audio->refcount;
if (audio->refcount == 0)
{
FAudio_OPERATIONSET_ClearAll(audio);
FAudio_StopEngine(audio);
audio->pFree(audio->decodeCache);
audio->pFree(audio->resampleCache);
audio->pFree(audio->effectChainCache);
LOG_MUTEX_DESTROY(audio, audio->sourceLock)
FAudio_PlatformDestroyMutex(audio->sourceLock);
LOG_MUTEX_DESTROY(audio, audio->submixLock)
FAudio_PlatformDestroyMutex(audio->submixLock);
LOG_MUTEX_DESTROY(audio, audio->callbackLock)
FAudio_PlatformDestroyMutex(audio->callbackLock);
LOG_MUTEX_DESTROY(audio, audio->operationLock)
FAudio_PlatformDestroyMutex(audio->operationLock);
audio->pFree(audio);
FAudio_PlatformRelease();
}
else
{
LOG_API_EXIT(audio)
}
return refcount;
}
uint32_t FAudio_GetDeviceCount(FAudio *audio, uint32_t *pCount)
{
LOG_API_ENTER(audio)
*pCount = FAudio_PlatformGetDeviceCount();
LOG_API_EXIT(audio)
return 0;
}
uint32_t FAudio_GetDeviceDetails(
FAudio *audio,
uint32_t Index,
FAudioDeviceDetails *pDeviceDetails
) {
uint32_t result;
LOG_API_ENTER(audio)
result = FAudio_PlatformGetDeviceDetails(Index, pDeviceDetails);
LOG_API_EXIT(audio)
return result;
}
uint32_t FAudio_Initialize(
FAudio *audio,
uint32_t Flags,
FAudioProcessor XAudio2Processor
) {
LOG_API_ENTER(audio)
FAudio_assert(Flags == 0 || Flags == FAUDIO_DEBUG_ENGINE);
FAudio_assert(XAudio2Processor == FAUDIO_DEFAULT_PROCESSOR);
audio->initFlags = Flags;
/* FIXME: This is lazy... */
audio->decodeCache = (float*) audio->pMalloc(sizeof(float));
audio->resampleCache = (float*) audio->pMalloc(sizeof(float));
audio->decodeSamples = 1;
audio->resampleSamples = 1;
FAudio_StartEngine(audio);
LOG_API_EXIT(audio)
return 0;
}
uint32_t FAudio_RegisterForCallbacks(
FAudio *audio,
FAudioEngineCallback *pCallback
) {
LOG_API_ENTER(audio)
LinkedList_AddEntry(
&audio->callbacks,
pCallback,
audio->callbackLock,
audio->pMalloc
);
LOG_API_EXIT(audio)
return 0;
}
void FAudio_UnregisterForCallbacks(
FAudio *audio,
FAudioEngineCallback *pCallback
) {
LOG_API_ENTER(audio)
LinkedList_RemoveEntry(
&audio->callbacks,
pCallback,
audio->callbackLock,
audio->pFree
);
LOG_API_EXIT(audio)
}
uint32_t FAudio_CreateSourceVoice(
FAudio *audio,
FAudioSourceVoice **ppSourceVoice,
const FAudioWaveFormatEx *pSourceFormat,
uint32_t Flags,
float MaxFrequencyRatio,
FAudioVoiceCallback *pCallback,
const FAudioVoiceSends *pSendList,
const FAudioEffectChain *pEffectChain
) {
uint32_t i;
LOG_API_ENTER(audio)
LOG_FORMAT(audio, pSourceFormat)
*ppSourceVoice = (FAudioSourceVoice*) audio->pMalloc(sizeof(FAudioVoice));
FAudio_zero(*ppSourceVoice, sizeof(FAudioSourceVoice));
(*ppSourceVoice)->audio = audio;
(*ppSourceVoice)->type = FAUDIO_VOICE_SOURCE;
(*ppSourceVoice)->flags = Flags;
(*ppSourceVoice)->filter.Type = FAUDIO_DEFAULT_FILTER_TYPE;
(*ppSourceVoice)->filter.Frequency = FAUDIO_DEFAULT_FILTER_FREQUENCY;
(*ppSourceVoice)->filter.OneOverQ = FAUDIO_DEFAULT_FILTER_ONEOVERQ;
(*ppSourceVoice)->filter.WetDryMix = FAUDIO_DEFAULT_FILTER_WETDRYMIX_EXT;
(*ppSourceVoice)->sendLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE(audio, (*ppSourceVoice)->sendLock)
(*ppSourceVoice)->effectLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE(audio, (*ppSourceVoice)->effectLock)
(*ppSourceVoice)->filterLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE(audio, (*ppSourceVoice)->filterLock)
(*ppSourceVoice)->volumeLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE(audio, (*ppSourceVoice)->volumeLock)
/* Source Properties */
FAudio_assert(MaxFrequencyRatio <= FAUDIO_MAX_FREQ_RATIO);
(*ppSourceVoice)->src.maxFreqRatio = MaxFrequencyRatio;
if ( pSourceFormat->wFormatTag == FAUDIO_FORMAT_PCM ||
pSourceFormat->wFormatTag == FAUDIO_FORMAT_IEEE_FLOAT ||
pSourceFormat->wFormatTag == FAUDIO_FORMAT_WMAUDIO2 ||
pSourceFormat->wFormatTag == FAUDIO_FORMAT_WMAUDIO3 )
{
FAudioWaveFormatExtensible *fmtex = (FAudioWaveFormatExtensible*) audio->pMalloc(
sizeof(FAudioWaveFormatExtensible)
);
/* convert PCM to EXTENSIBLE */
fmtex->Format.wFormatTag = FAUDIO_FORMAT_EXTENSIBLE;
fmtex->Format.nChannels = pSourceFormat->nChannels;
fmtex->Format.nSamplesPerSec = pSourceFormat->nSamplesPerSec;
fmtex->Format.nAvgBytesPerSec = pSourceFormat->nAvgBytesPerSec;
fmtex->Format.nBlockAlign = pSourceFormat->nBlockAlign;
fmtex->Format.wBitsPerSample = pSourceFormat->wBitsPerSample;
fmtex->Format.cbSize = sizeof(FAudioWaveFormatExtensible) - sizeof(FAudioWaveFormatEx);
fmtex->Samples.wValidBitsPerSample = pSourceFormat->wBitsPerSample;
fmtex->dwChannelMask = 0;
if (pSourceFormat->wFormatTag == FAUDIO_FORMAT_PCM)
{
FAudio_memcpy(&fmtex->SubFormat, &DATAFORMAT_SUBTYPE_PCM, sizeof(FAudioGUID));
}
else if (pSourceFormat->wFormatTag == FAUDIO_FORMAT_IEEE_FLOAT)
{
FAudio_memcpy(&fmtex->SubFormat, &DATAFORMAT_SUBTYPE_IEEE_FLOAT, sizeof(FAudioGUID));
}
else if (pSourceFormat->wFormatTag == FAUDIO_FORMAT_WMAUDIO2)
{
FAudio_memcpy(&fmtex->SubFormat, &DATAFORMAT_SUBTYPE_WMAUDIO2, sizeof(FAudioGUID));
}
else if (pSourceFormat->wFormatTag == FAUDIO_FORMAT_WMAUDIO3)
{
FAudio_memcpy(&fmtex->SubFormat, &DATAFORMAT_SUBTYPE_WMAUDIO3, sizeof(FAudioGUID));
}
(*ppSourceVoice)->src.format = &fmtex->Format;
}
else if (pSourceFormat->wFormatTag == FAUDIO_FORMAT_MSADPCM)
{
FAudioADPCMWaveFormat *fmtex = (FAudioADPCMWaveFormat*) audio->pMalloc(
sizeof(FAudioADPCMWaveFormat)
);
/* Copy what we can, ideally the sizes match! */
size_t cbSize = sizeof(FAudioWaveFormatEx) + pSourceFormat->cbSize;
FAudio_memcpy(
fmtex,
pSourceFormat,
FAudio_min(cbSize, sizeof(FAudioADPCMWaveFormat))
);
if (cbSize < sizeof(FAudioADPCMWaveFormat))
{
FAudio_zero(
((uint8_t*) fmtex) + cbSize,
sizeof(FAudioADPCMWaveFormat) - cbSize
);
}
/* XAudio2 does not validate this input! */
fmtex->wfx.cbSize = sizeof(FAudioADPCMWaveFormat) - sizeof(FAudioWaveFormatEx);
fmtex->wSamplesPerBlock = ((
fmtex->wfx.nBlockAlign / fmtex->wfx.nChannels
) - 6) * 2;
(*ppSourceVoice)->src.format = &fmtex->wfx;
}
else if (pSourceFormat->wFormatTag == FAUDIO_FORMAT_XMAUDIO2)
{
FAudioXMA2WaveFormat *fmtex = (FAudioXMA2WaveFormat*) audio->pMalloc(
sizeof(FAudioXMA2WaveFormat)
);
/* Copy what we can, ideally the sizes match! */
size_t cbSize = sizeof(FAudioWaveFormatEx) + pSourceFormat->cbSize;
FAudio_memcpy(
fmtex,
pSourceFormat,
FAudio_min(cbSize, sizeof(FAudioXMA2WaveFormat))
);
if (cbSize < sizeof(FAudioXMA2WaveFormat))
{
FAudio_zero(
((uint8_t*) fmtex) + cbSize,
sizeof(FAudioADPCMWaveFormat) - cbSize
);
}
/* Does XAudio2 validate this input?! */
fmtex->wfx.cbSize = sizeof(FAudioXMA2WaveFormat) - sizeof(FAudioWaveFormatEx);
(*ppSourceVoice)->src.format = &fmtex->wfx;
}
else
{
/* direct copy anything else */
(*ppSourceVoice)->src.format = (FAudioWaveFormatEx*) audio->pMalloc(
sizeof(FAudioWaveFormatEx) + pSourceFormat->cbSize
);
FAudio_memcpy(
(*ppSourceVoice)->src.format,
pSourceFormat,
sizeof(FAudioWaveFormatEx) + pSourceFormat->cbSize
);
}
(*ppSourceVoice)->src.callback = pCallback;
(*ppSourceVoice)->src.active = 0;
(*ppSourceVoice)->src.freqRatio = 1.0f;
(*ppSourceVoice)->src.totalSamples = 0;
(*ppSourceVoice)->src.bufferList = NULL;
(*ppSourceVoice)->src.flushList = NULL;
(*ppSourceVoice)->src.bufferLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE(audio, (*ppSourceVoice)->src.bufferLock)
if ((*ppSourceVoice)->src.format->wFormatTag == FAUDIO_FORMAT_EXTENSIBLE)
{
FAudioWaveFormatExtensible *fmtex = (FAudioWaveFormatExtensible*) (*ppSourceVoice)->src.format;
#define COMPARE_GUID(type) \
(FAudio_memcmp( \
&fmtex->SubFormat, \
&DATAFORMAT_SUBTYPE_##type, \
sizeof(FAudioGUID) \
) == 0)
if (COMPARE_GUID(PCM))
{
#define DECODER(bit) \
if (fmtex->Format.wBitsPerSample == bit) \
{ \
(*ppSourceVoice)->src.decode = FAudio_INTERNAL_DecodePCM##bit; \
}
DECODER(16)
else DECODER(8)
else DECODER(24)
else DECODER(32)
else
{
LOG_ERROR(
audio,
"Unrecognized wBitsPerSample: %d",
fmtex->Format.wBitsPerSample
)
FAudio_assert(0 && "Unrecognized wBitsPerSample!");
}
#undef DECODER
}
else if (COMPARE_GUID(IEEE_FLOAT))
{
/* FIXME: Weird behavior!
* Prototype creates a source with the IEEE_FLOAT tag,
* but it's actually PCM16. It seems to prioritize
* wBitsPerSample over the format tag. Not sure if we
* should fold this section into the section above...?
* -flibit
*/
if (fmtex->Format.wBitsPerSample == 16)
{
(*ppSourceVoice)->src.decode = FAudio_INTERNAL_DecodePCM16;
}
else
{
(*ppSourceVoice)->src.decode = FAudio_INTERNAL_DecodePCM32F;
}
}
else if ( COMPARE_GUID(WMAUDIO2) ||
COMPARE_GUID(WMAUDIO3) ||
COMPARE_GUID(WMAUDIO_LOSSLESS) )
{
#ifdef HAVE_WMADEC
if (FAudio_WMADEC_init(*ppSourceVoice, fmtex->SubFormat.Data1) != 0)
{
(*ppSourceVoice)->src.decode = FAudio_INTERNAL_DecodeWMAERROR;
}
#else
FAudio_assert(0 && "xWMA is not supported!");
(*ppSourceVoice)->src.decode = FAudio_INTERNAL_DecodeWMAERROR;
#endif /* HAVE_WMADEC */
}
else
{
FAudio_assert(0 && "Unsupported WAVEFORMATEXTENSIBLE subtype!");
}
#undef COMPARE_GUID
}
else if ((*ppSourceVoice)->src.format->wFormatTag == FAUDIO_FORMAT_XMAUDIO2)
{
#ifdef HAVE_WMADEC
if (FAudio_WMADEC_init(*ppSourceVoice, FAUDIO_FORMAT_XMAUDIO2) != 0)
{
(*ppSourceVoice)->src.decode = FAudio_INTERNAL_DecodeWMAERROR;
}
#else
FAudio_assert(0 && "XMA2 is not supported!");
(*ppSourceVoice)->src.decode = FAudio_INTERNAL_DecodeWMAERROR;
#endif /* HAVE_WMADEC */
}
else if ((*ppSourceVoice)->src.format->wFormatTag == FAUDIO_FORMAT_MSADPCM)
{
(*ppSourceVoice)->src.decode = ((*ppSourceVoice)->src.format->nChannels == 2) ?
FAudio_INTERNAL_DecodeStereoMSADPCM :
FAudio_INTERNAL_DecodeMonoMSADPCM;
}
else
{
FAudio_assert(0 && "Unsupported format tag!");
}
if ((*ppSourceVoice)->src.format->nChannels == 1)
{
(*ppSourceVoice)->src.resample = FAudio_INTERNAL_ResampleMono;
}
else if ((*ppSourceVoice)->src.format->nChannels == 2)
{
(*ppSourceVoice)->src.resample = FAudio_INTERNAL_ResampleStereo;
}
else
{
(*ppSourceVoice)->src.resample = FAudio_INTERNAL_ResampleGeneric;
}
(*ppSourceVoice)->src.curBufferOffset = 0;
/* Sends/Effects */
FAudio_INTERNAL_VoiceOutputFrequency(*ppSourceVoice, pSendList);
FAudioVoice_SetEffectChain(*ppSourceVoice, pEffectChain);
/* Default Levels */
(*ppSourceVoice)->volume = 1.0f;
(*ppSourceVoice)->channelVolume = (float*) audio->pMalloc(
sizeof(float) * (*ppSourceVoice)->outputChannels
);
for (i = 0; i < (*ppSourceVoice)->outputChannels; i += 1)
{
(*ppSourceVoice)->channelVolume[i] = 1.0f;
}
FAudioVoice_SetOutputVoices(*ppSourceVoice, pSendList);
/* Filters */
if (Flags & FAUDIO_VOICE_USEFILTER)
{
(*ppSourceVoice)->filterState = (FAudioFilterState*) audio->pMalloc(
sizeof(FAudioFilterState) * (*ppSourceVoice)->src.format->nChannels
);
FAudio_zero(
(*ppSourceVoice)->filterState,
sizeof(FAudioFilterState) * (*ppSourceVoice)->src.format->nChannels
);
}
/* Sample Storage */
(*ppSourceVoice)->src.decodeSamples = (uint32_t) (FAudio_ceil(
(double) audio->updateSize *
(double) MaxFrequencyRatio *
(double) (*ppSourceVoice)->src.format->nSamplesPerSec /
(double) audio->master->master.inputSampleRate
)) + EXTRA_DECODE_PADDING * (*ppSourceVoice)->src.format->nChannels;
FAudio_INTERNAL_ResizeDecodeCache(
audio,
((*ppSourceVoice)->src.decodeSamples + EXTRA_DECODE_PADDING) * (*ppSourceVoice)->src.format->nChannels
);
LOG_INFO(audio, "-> %p", (void*) (*ppSourceVoice))
/* Add to list, finally. */
LinkedList_PrependEntry(
&audio->sources,
*ppSourceVoice,
audio->sourceLock,
audio->pMalloc
);
FAudio_AddRef(audio);
#ifdef FAUDIO_DUMP_VOICES
FAudio_DUMPVOICE_Init(*ppSourceVoice);
#endif /* FAUDIO_DUMP_VOICES */
LOG_API_EXIT(audio)
return 0;
}
uint32_t FAudio_CreateSubmixVoice(
FAudio *audio,
FAudioSubmixVoice **ppSubmixVoice,
uint32_t InputChannels,
uint32_t InputSampleRate,
uint32_t Flags,
uint32_t ProcessingStage,
const FAudioVoiceSends *pSendList,
const FAudioEffectChain *pEffectChain
) {
uint32_t i;
LOG_API_ENTER(audio)
*ppSubmixVoice = (FAudioSubmixVoice*) audio->pMalloc(sizeof(FAudioVoice));
FAudio_zero(*ppSubmixVoice, sizeof(FAudioSubmixVoice));
(*ppSubmixVoice)->audio = audio;
(*ppSubmixVoice)->type = FAUDIO_VOICE_SUBMIX;
(*ppSubmixVoice)->flags = Flags;
(*ppSubmixVoice)->filter.Type = FAUDIO_DEFAULT_FILTER_TYPE;
(*ppSubmixVoice)->filter.Frequency = FAUDIO_DEFAULT_FILTER_FREQUENCY;
(*ppSubmixVoice)->filter.OneOverQ = FAUDIO_DEFAULT_FILTER_ONEOVERQ;
(*ppSubmixVoice)->filter.WetDryMix = FAUDIO_DEFAULT_FILTER_WETDRYMIX_EXT;
(*ppSubmixVoice)->sendLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE(audio, (*ppSubmixVoice)->sendLock)
(*ppSubmixVoice)->effectLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE(audio, (*ppSubmixVoice)->effectLock)
(*ppSubmixVoice)->filterLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE(audio, (*ppSubmixVoice)->filterLock)
(*ppSubmixVoice)->volumeLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE(audio, (*ppSubmixVoice)->volumeLock)
/* Submix Properties */
(*ppSubmixVoice)->mix.inputChannels = InputChannels;
(*ppSubmixVoice)->mix.inputSampleRate = InputSampleRate;
(*ppSubmixVoice)->mix.processingStage = ProcessingStage;
/* Resampler */
if (InputChannels == 1)
{
(*ppSubmixVoice)->mix.resample = FAudio_INTERNAL_ResampleMono;
}
else if (InputChannels == 2)
{
(*ppSubmixVoice)->mix.resample = FAudio_INTERNAL_ResampleStereo;
}
else
{
(*ppSubmixVoice)->mix.resample = FAudio_INTERNAL_ResampleGeneric;
}
/* Sample Storage */
(*ppSubmixVoice)->mix.inputSamples = ((uint32_t) FAudio_ceil(
audio->updateSize *
(double) InputSampleRate /
(double) audio->master->master.inputSampleRate
) + EXTRA_DECODE_PADDING) * InputChannels;
(*ppSubmixVoice)->mix.inputCache = (float*) audio->pMalloc(
sizeof(float) * (*ppSubmixVoice)->mix.inputSamples
);
FAudio_zero( /* Zero this now, for the first update */
(*ppSubmixVoice)->mix.inputCache,
sizeof(float) * (*ppSubmixVoice)->mix.inputSamples
);
/* Sends/Effects */
FAudio_INTERNAL_VoiceOutputFrequency(*ppSubmixVoice, pSendList);
FAudioVoice_SetEffectChain(*ppSubmixVoice, pEffectChain);
/* Default Levels */
(*ppSubmixVoice)->volume = 1.0f;
(*ppSubmixVoice)->channelVolume = (float*) audio->pMalloc(
sizeof(float) * (*ppSubmixVoice)->outputChannels
);
for (i = 0; i < (*ppSubmixVoice)->outputChannels; i += 1)
{
(*ppSubmixVoice)->channelVolume[i] = 1.0f;
}
FAudioVoice_SetOutputVoices(*ppSubmixVoice, pSendList);
/* Filters */
if (Flags & FAUDIO_VOICE_USEFILTER)
{
(*ppSubmixVoice)->filterState = (FAudioFilterState*) audio->pMalloc(
sizeof(FAudioFilterState) * InputChannels
);
FAudio_zero(
(*ppSubmixVoice)->filterState,
sizeof(FAudioFilterState) * InputChannels
);
}
/* Add to list, finally. */
FAudio_INTERNAL_InsertSubmixSorted(
&audio->submixes,
*ppSubmixVoice,
audio->submixLock,
audio->pMalloc
);
FAudio_AddRef(audio);
LOG_API_EXIT(audio)
return 0;
}
uint32_t FAudio_CreateMasteringVoice(
FAudio *audio,
FAudioMasteringVoice **ppMasteringVoice,
uint32_t InputChannels,
uint32_t InputSampleRate,
uint32_t Flags,
uint32_t DeviceIndex,
const FAudioEffectChain *pEffectChain
) {
LOG_API_ENTER(audio)
/* For now we only support one allocated master voice at a time */
FAudio_assert(audio->master == NULL);
if ( InputChannels == FAUDIO_DEFAULT_CHANNELS ||
InputSampleRate == FAUDIO_DEFAULT_SAMPLERATE )
{
FAudioDeviceDetails details;
if (FAudio_GetDeviceDetails(audio, DeviceIndex, &details) != 0)
{
return FAUDIO_E_INVALID_CALL;
}
if (InputChannels == FAUDIO_DEFAULT_CHANNELS)
{
InputChannels = details.OutputFormat.Format.nChannels;
}
if (InputSampleRate == FAUDIO_DEFAULT_SAMPLERATE)
{
InputSampleRate = details.OutputFormat.Format.nSamplesPerSec;
}
}
*ppMasteringVoice = (FAudioMasteringVoice*) audio->pMalloc(sizeof(FAudioVoice));
FAudio_zero(*ppMasteringVoice, sizeof(FAudioMasteringVoice));
(*ppMasteringVoice)->audio = audio;
(*ppMasteringVoice)->type = FAUDIO_VOICE_MASTER;
(*ppMasteringVoice)->flags = Flags;
(*ppMasteringVoice)->effectLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE(audio, (*ppMasteringVoice)->effectLock)
(*ppMasteringVoice)->volumeLock = FAudio_PlatformCreateMutex();
LOG_MUTEX_CREATE(audio, (*ppMasteringVoice)->volumeLock)
/* Default Levels */
(*ppMasteringVoice)->volume = 1.0f;
/* Master Properties */
(*ppMasteringVoice)->master.inputChannels = InputChannels;
(*ppMasteringVoice)->master.inputSampleRate = InputSampleRate;
/* Sends/Effects */
FAudio_zero(&(*ppMasteringVoice)->sends, sizeof(FAudioVoiceSends));
FAudioVoice_SetEffectChain(*ppMasteringVoice, pEffectChain);
/* This is now safe enough to assign */
audio->master = *ppMasteringVoice;
/* Build the device format.
* The most unintuitive part of this is the use of outputChannels
* instead of master.inputChannels. Bizarrely, the effect chain can
* dictate the _actual_ output channel count, and when the channel count
* mismatches, we have to add a staging buffer for effects to process on
* before ultimately copying the final result to the device. ARGH.
*/
WriteWaveFormatExtensible(
&audio->mixFormat,
audio->master->outputChannels,
audio->master->master.inputSampleRate,
&DATAFORMAT_SUBTYPE_IEEE_FLOAT
);
/* Platform Device */
FAudio_AddRef(audio);
FAudio_PlatformInit(
audio,
audio->initFlags,
DeviceIndex,
&audio->mixFormat,
&audio->updateSize,
&audio->platform
);
if (audio->platform == NULL)
{
FAudioVoice_DestroyVoice(*ppMasteringVoice);
*ppMasteringVoice = NULL;
/* Not the best code, but it's probably true? */
return FAUDIO_E_DEVICE_INVALIDATED;
}
audio->master->outputChannels = audio->mixFormat.Format.nChannels;
audio->master->master.inputSampleRate = audio->mixFormat.Format.nSamplesPerSec;
/* Effect Chain Cache */
if ((*ppMasteringVoice)->master.inputChannels != (*ppMasteringVoice)->outputChannels)
{
(*ppMasteringVoice)->master.effectCache = (float*) audio->pMalloc(
sizeof(float) *
audio->updateSize *
(*ppMasteringVoice)->master.inputChannels
);
}
LOG_API_EXIT(audio)
return 0;
}
uint32_t FAudio_CreateMasteringVoice8(
FAudio *audio,
FAudioMasteringVoice **ppMasteringVoice,
uint32_t InputChannels,
uint32_t InputSampleRate,
uint32_t Flags,
uint16_t *szDeviceId,
const FAudioEffectChain *pEffectChain,
FAudioStreamCategory StreamCategory
) {
uint32_t DeviceIndex, retval;
LOG_API_ENTER(audio)
/* Eventually, we'll want the old CreateMastering to call the new one.
* That will depend on us being able to use DeviceID though.
* For now, use our little ID hack to turn szDeviceId into DeviceIndex.
* -flibit
*/
if (szDeviceId == NULL || szDeviceId[0] == 0)
{
DeviceIndex = 0;
}
else
{
DeviceIndex = szDeviceId[0] - L'0';
if (DeviceIndex > FAudio_PlatformGetDeviceCount())
{
DeviceIndex = 0;
}
}
/* Note that StreamCategory is ignored! */
retval = FAudio_CreateMasteringVoice(
audio,
ppMasteringVoice,
InputChannels,
InputSampleRate,
Flags,
DeviceIndex,
pEffectChain
);
LOG_API_EXIT(audio)
return retval;
}
void FAudio_SetEngineProcedureEXT(
FAudio *audio,
FAudioEngineProcedureEXT clientEngineProc,
void *user
) {
LOG_API_ENTER(audio)
audio->pClientEngineProc = clientEngineProc;
audio->clientEngineUser = user;
LOG_API_EXIT(audio)
}
uint32_t FAudio_StartEngine(FAudio *audio)
{
LOG_API_ENTER(audio)
audio->active = 1;
LOG_API_EXIT(audio)
return 0;
}
void FAudio_StopEngine(FAudio *audio)
{
LOG_API_ENTER(audio)
audio->active = 0;
FAudio_OPERATIONSET_CommitAll(audio);
FAudio_OPERATIONSET_Execute(audio);
LOG_API_EXIT(audio)
}
uint32_t FAudio_CommitOperationSet(FAudio *audio, uint32_t OperationSet)
{
LOG_API_ENTER(audio)
if (OperationSet == FAUDIO_COMMIT_ALL)
{
FAudio_OPERATIONSET_CommitAll(audio);
}
else
{
FAudio_OPERATIONSET_Commit(audio, OperationSet);
}
LOG_API_EXIT(audio)
return 0;
}
uint32_t FAudio_CommitChanges(FAudio *audio)
{
FAudio_Log(
"IF YOU CAN READ THIS, YOUR PROGRAM IS ABOUT TO BREAK!"
"\n\nEither you or somebody else is using FAudio_CommitChanges,"
"\nwhen they should be using FAudio_CommitOperationSet instead."
"\n\nIf your program calls this, move to CommitOperationSet."
"\n\nIf somebody else is calling this, find out who it is and"
"\nfile a bug report with them ASAP."
);
/* Seriously, this is like the worst possible thing short of no-oping.
* For the love-a Pete, just migrate, do it, what is wrong with you
*/
return FAudio_CommitOperationSet(audio, FAUDIO_COMMIT_ALL);
}
void FAudio_GetPerformanceData(
FAudio *audio,
FAudioPerformanceData *pPerfData
) {
LinkedList *list;
FAudioSourceVoice *source;
LOG_API_ENTER(audio)
FAudio_zero(pPerfData, sizeof(FAudioPerformanceData));
FAudio_PlatformLockMutex(audio->sourceLock);
LOG_MUTEX_LOCK(audio, audio->sourceLock)
list = audio->sources;
while (list != NULL)
{
source = (FAudioSourceVoice*) list->entry;
pPerfData->TotalSourceVoiceCount += 1;
if (source->src.active)
{
pPerfData->ActiveSourceVoiceCount += 1;
}
list = list->next;
}
FAudio_PlatformUnlockMutex(audio->sourceLock);
LOG_MUTEX_UNLOCK(audio, audio->sourceLock)
FAudio_PlatformLockMutex(audio->submixLock);
LOG_MUTEX_LOCK(audio, audio->submixLock)
list = audio->submixes;
while (list != NULL)
{
pPerfData->ActiveSubmixVoiceCount += 1;
list = list->next;
}
FAudio_PlatformUnlockMutex(audio->submixLock);
LOG_MUTEX_UNLOCK(audio, audio->submixLock)
if (audio->master != NULL)
{
/* estimate, should use real latency from platform */
pPerfData->CurrentLatencyInSamples = 2 * audio->updateSize;
}
LOG_API_EXIT(audio)
}
void FAudio_SetDebugConfiguration(
FAudio *audio,
FAudioDebugConfiguration *pDebugConfiguration,
void* pReserved
) {
#ifndef FAUDIO_DISABLE_DEBUGCONFIGURATION
char *env;
LOG_API_ENTER(audio)
FAudio_memcpy(
&audio->debug,
pDebugConfiguration,
sizeof(FAudioDebugConfiguration)
);
env = FAudio_getenv("FAUDIO_LOG_EVERYTHING");
if (env != NULL && *env == '1')
{
audio->debug.TraceMask = (
FAUDIO_LOG_ERRORS |
FAUDIO_LOG_WARNINGS |
FAUDIO_LOG_INFO |
FAUDIO_LOG_DETAIL |
FAUDIO_LOG_API_CALLS |
FAUDIO_LOG_FUNC_CALLS |
FAUDIO_LOG_TIMING |
FAUDIO_LOG_LOCKS |
FAUDIO_LOG_MEMORY |
FAUDIO_LOG_STREAMING
);
audio->debug.LogThreadID = 1;
audio->debug.LogFunctionName = 1;
audio->debug.LogTiming = 1;
}
#define CHECK_ENV(type) \
env = FAudio_getenv("FAUDIO_LOG_" #type); \
if (env != NULL) \
{ \
if (*env == '1') \
{ \
audio->debug.TraceMask |= FAUDIO_LOG_##type; \
} \
else \
{ \
audio->debug.TraceMask &= ~FAUDIO_LOG_##type; \
} \
}
CHECK_ENV(ERRORS)
CHECK_ENV(WARNINGS)
CHECK_ENV(INFO)
CHECK_ENV(DETAIL)
CHECK_ENV(API_CALLS)
CHECK_ENV(FUNC_CALLS)
CHECK_ENV(TIMING)
CHECK_ENV(LOCKS)
CHECK_ENV(MEMORY)
CHECK_ENV(STREAMING)
#undef CHECK_ENV
#define CHECK_ENV(envvar, boolvar) \
env = FAudio_getenv("FAUDIO_LOG_LOG" #envvar); \
if (env != NULL) \