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-rw-r--r--src/audio/oal/stream.cpp583
-rw-r--r--src/audio/oal/stream.h87
2 files changed, 569 insertions, 101 deletions
diff --git a/src/audio/oal/stream.cpp b/src/audio/oal/stream.cpp
index ed73e940..c46f836c 100644
--- a/src/audio/oal/stream.cpp
+++ b/src/audio/oal/stream.cpp
@@ -1,8 +1,6 @@
#include "common.h"
#ifdef AUDIO_OAL
-#include "stream.h"
-#include "sampman.h"
#if defined _MSC_VER && !defined CMAKE_NO_AUTOLINK
#ifdef AUDIO_OAL_USE_SNDFILE
@@ -22,6 +20,28 @@
#include <opusfile.h>
#endif
+#include <queue>
+#include <utility>
+
+#ifdef MULTITHREADED_AUDIO
+#include <iostream>
+#include <thread>
+#include <mutex>
+#include <condition_variable>
+#include "MusicManager.h"
+#include "stream.h"
+
+std::thread gAudioThread;
+std::mutex gAudioThreadQueueMutex;
+std::condition_variable gAudioThreadCv;
+bool gAudioThreadTerm = false;
+std::queue<CStream*> gStreamsToProcess; // values are not unique, we will handle that ourself
+#else
+#include "stream.h"
+#endif
+
+#include "sampman.h"
+
#ifndef _WIN32
#include "crossplatform.h"
#endif
@@ -39,6 +59,10 @@ class CSortStereoBuffer
{
uint16* PcmBuf;
size_t BufSize;
+//#ifdef MULTITHREADED_AUDIO
+// std::mutex Mutex;
+//#endif
+
public:
CSortStereoBuffer() : PcmBuf(nil), BufSize(0) {}
~CSortStereoBuffer()
@@ -65,6 +89,9 @@ public:
void SortStereo(void* buf, size_t size)
{
+//#ifdef MULTITHREADED_AUDIO
+// std::lock_guard<std::mutex> lock(Mutex);
+//#endif
uint16* InBuf = (uint16*)buf;
uint16* OutBuf = GetBuffer(size);
@@ -279,6 +306,10 @@ public:
#undef CLOSE_ON_ERROR
}
+ void FileOpen()
+ {
+ }
+
~CWavFile()
{
Close();
@@ -289,6 +320,7 @@ public:
return m_bIsOpen;
}
+
uint32 GetSampleSize()
{
return sizeof(uint16);
@@ -405,6 +437,10 @@ public:
m_pfSound = sf_open(path, SFM_READ, &m_soundInfo);
}
+ void FileOpen()
+ {
+ }
+
~CSndFile()
{
if ( m_pfSound )
@@ -464,8 +500,6 @@ public:
#endif
#ifdef AUDIO_OAL_USE_MPG123
-// fuzzy seek eliminates stutter when playing ADF but spams errors a lot (and breaks radio sometimes)
-//#define MP3_USE_FUZZY_SEEK
class CMP3File : public IDecoder
{
@@ -474,45 +508,58 @@ protected:
bool m_bOpened;
uint32 m_nRate;
uint32 m_nChannels;
-
+ const char* m_pPath;
+ bool m_bFileNotOpenedYet;
+
CMP3File() :
m_pMH(nil),
m_bOpened(false),
m_nRate(0),
+ m_bFileNotOpenedYet(false),
m_nChannels(0) {}
public:
CMP3File(const char *path) :
m_pMH(nil),
m_bOpened(false),
m_nRate(0),
- m_nChannels(0)
+ m_nChannels(0),
+ m_pPath(path),
+ m_bFileNotOpenedYet(false)
{
m_pMH = mpg123_new(nil, nil);
if ( m_pMH )
{
-#ifdef MP3_USE_FUZZY_SEEK
- mpg123_param(m_pMH, MPG123_FLAGS, MPG123_FUZZY | MPG123_SEEKBUFFER | MPG123_GAPLESS | MPG123_QUIET, 0.0);
-#else
mpg123_param(m_pMH, MPG123_FLAGS, MPG123_SEEKBUFFER | MPG123_GAPLESS, 0.0);
-#endif
- long rate = 0;
- int channels = 0;
- int encoding = 0;
-
- m_bOpened = mpg123_open(m_pMH, path) == MPG123_OK
- && mpg123_getformat(m_pMH, &rate, &channels, &encoding) == MPG123_OK;
- m_nRate = rate;
- m_nChannels = channels;
-
- if ( IsOpened() )
- {
- mpg123_format_none(m_pMH);
- mpg123_format(m_pMH, rate, channels, encoding);
- }
+ m_bOpened = true;
+ m_bFileNotOpenedYet = true;
+ // It's possible to move this to audioFileOpsThread(), but effect isn't noticable + probably not compatible with our current cutscene audio handling
+#if 1
+ FileOpen();
+#endif
}
}
+ void FileOpen()
+ {
+ if(!m_bFileNotOpenedYet) return;
+
+ long rate = 0;
+ int channels = 0;
+ int encoding = 0;
+ m_bOpened = mpg123_open(m_pMH, m_pPath) == MPG123_OK
+ && mpg123_getformat(m_pMH, &rate, &channels, &encoding) == MPG123_OK;
+
+ m_nRate = rate;
+ m_nChannels = channels;
+
+ if(IsOpened()) {
+ mpg123_format_none(m_pMH);
+ mpg123_format(m_pMH, rate, channels, encoding);
+ }
+ m_bFileNotOpenedYet = false;
+ }
+
~CMP3File()
{
if ( m_pMH )
@@ -535,7 +582,7 @@ public:
uint32 GetSampleCount()
{
- if ( !IsOpened() ) return 0;
+ if ( !IsOpened() || m_bFileNotOpenedYet ) return 0;
return mpg123_length(m_pMH);
}
@@ -551,19 +598,19 @@ public:
void Seek(uint32 milliseconds)
{
- if ( !IsOpened() ) return;
+ if ( !IsOpened() || m_bFileNotOpenedYet ) return;
mpg123_seek(m_pMH, ms2samples(milliseconds), SEEK_SET);
}
uint32 Tell()
{
- if ( !IsOpened() ) return 0;
+ if ( !IsOpened() || m_bFileNotOpenedYet ) return 0;
return samples2ms(mpg123_tell(m_pMH));
}
uint32 Decode(void *buffer)
{
- if ( !IsOpened() ) return 0;
+ if ( !IsOpened() || m_bFileNotOpenedYet ) return 0;
size_t size;
int err = mpg123_read(m_pMH, (unsigned char *)buffer, GetBufferSize(), &size);
@@ -602,28 +649,41 @@ public:
m_pMH = mpg123_new(nil, nil);
if (m_pMH)
{
-#ifdef MP3_USE_FUZZY_SEEK
- mpg123_param(m_pMH, MPG123_FLAGS, MPG123_FUZZY | MPG123_SEEKBUFFER | MPG123_GAPLESS | MPG123_QUIET, 0.0);
-#else
mpg123_param(m_pMH, MPG123_FLAGS, MPG123_SEEKBUFFER | MPG123_GAPLESS, 0.0);
+
+ m_bOpened = true;
+ m_bFileNotOpenedYet = true;
+ m_pPath = path;
+ // It's possible to move this to audioFileOpsThread(), but effect isn't noticable + probably not compatible with our current cutscene audio handling
+#if 1
+ FileOpen();
#endif
- long rate = 0;
- int channels = 0;
- int encoding = 0;
- FILE* f = fopen(path, "rb");
+ }
+ }
- m_bOpened = mpg123_replace_reader_handle(m_pMH, r_read, r_seek, r_close) == MPG123_OK
- && mpg123_open_handle(m_pMH, f) == MPG123_OK && mpg123_getformat(m_pMH, &rate, &channels, &encoding) == MPG123_OK;
- m_nRate = rate;
- m_nChannels = channels;
+ void FileOpen()
+ {
+ if(!m_bFileNotOpenedYet) return;
- if (IsOpened())
- {
- mpg123_format_none(m_pMH);
- mpg123_format(m_pMH, rate, channels, encoding);
- }
+ long rate = 0;
+ int channels = 0;
+ int encoding = 0;
+
+ FILE *f = fopen(m_pPath, "rb");
+
+ m_bOpened = f && mpg123_replace_reader_handle(m_pMH, r_read, r_seek, r_close) == MPG123_OK
+ && mpg123_open_handle(m_pMH, f) == MPG123_OK && mpg123_getformat(m_pMH, &rate, &channels, &encoding) == MPG123_OK;
+
+ m_nRate = rate;
+ m_nChannels = channels;
+
+ if(IsOpened()) {
+ mpg123_format_none(m_pMH);
+ mpg123_format(m_pMH, rate, channels, encoding);
}
+
+ m_bFileNotOpenedYet = false;
}
};
@@ -744,6 +804,10 @@ public:
m_ppVagBuffers[i] = new uint8[VB_BLOCK_SIZE];
}
+ void FileOpen()
+ {
+ }
+
~CVbFile()
{
if (m_pFile)
@@ -896,6 +960,10 @@ public:
m_bOpened = true;
}
}
+
+ void FileOpen()
+ {
+ }
~COpusFile()
{
@@ -961,11 +1029,183 @@ public:
};
#endif
+
+// For multi-thread: Someone always acquire stream's mutex before entering here
+void
+CStream::BuffersShouldBeFilled()
+{
+#ifdef MULTITHREADED_AUDIO
+ if (MusicManager.m_nMusicMode != MUSICMODE_CUTSCENE) {
+ std::queue<std::pair<ALuint, ALuint>> tempQueue;
+ for(int i = 0; i < NUM_STREAMBUFFERS / 2; i++) {
+ tempQueue.push(std::pair<ALuint, ALuint>(m_alBuffers[i * 2], m_alBuffers[i * 2 + 1]));
+ }
+ m_fillBuffers.swap(tempQueue);
+
+ FlagAsToBeProcessed();
+
+ m_bActive = true; // to allow Update() to queue the filled buffers & play
+ return;
+ }
+ std::queue<std::pair<ALuint, ALuint>>().swap(m_fillBuffers);
+#endif
+ if ( FillBuffers() != 0 )
+ {
+ SetPlay(true);
+ }
+}
+
+// returns whether it's queued (not on multi-thread)
+bool
+CStream::BufferShouldBeFilledAndQueued(std::pair<ALuint, ALuint>* bufs)
+{
+#ifdef MULTITHREADED_AUDIO
+ if (MusicManager.m_nMusicMode != MUSICMODE_CUTSCENE)
+ m_fillBuffers.push(*bufs);
+ else
+#endif
+ {
+ ALuint alBuffers[2] = {(*bufs).first, (*bufs).second}; // left - right
+ if (FillBuffer(alBuffers)) {
+ alSourceQueueBuffers(m_pAlSources[0], 1, &alBuffers[0]);
+ alSourceQueueBuffers(m_pAlSources[1], 1, &alBuffers[1]);
+ return true;
+ }
+ }
+ return false;
+}
+
+#ifdef MULTITHREADED_AUDIO
+void
+CStream::FlagAsToBeProcessed(bool close)
+{
+ if (!close && MusicManager.m_nMusicMode == MUSICMODE_CUTSCENE)
+ return;
+
+ gAudioThreadQueueMutex.lock();
+ gStreamsToProcess.push(this);
+ gAudioThreadQueueMutex.unlock();
+
+ gAudioThreadCv.notify_one();
+}
+
+extern CStream *aStream[];
+void audioFileOpsThread()
+{
+ std::queue<CStream*> m_streamsToDelete;
+
+ do
+ {
+ CStream *stream;
+ {
+ // Just a semaphore
+ std::unique_lock<std::mutex> queueMutex(gAudioThreadQueueMutex);
+ gAudioThreadCv.wait(queueMutex, [m_streamsToDelete] { return gStreamsToProcess.size() > 0 || m_streamsToDelete.size() > 0 || gAudioThreadTerm; });
+ if (gAudioThreadTerm)
+ return;
+
+ if (!gStreamsToProcess.empty()) {
+ stream = gStreamsToProcess.front();
+ gStreamsToProcess.pop();
+ } else {
+ // End of streams. Perform deleting streams
+ while(!m_streamsToDelete.empty()) {
+ CStream *stream = m_streamsToDelete.front();
+ m_streamsToDelete.pop();
+ if (stream->m_pSoundFile) {
+ delete stream->m_pSoundFile;
+ stream->m_pSoundFile = nil;
+ }
+
+ if (stream->m_pBuffer) {
+ free(stream->m_pBuffer);
+ stream->m_pBuffer = nil;
+ }
+ delete stream;
+ }
+ continue;
+ }
+ }
+
+ std::unique_lock<std::mutex> lock(stream->m_mutex);
+
+ std::pair<ALuint, ALuint> buffers, *lastBufAddr;
+ bool insertBufsAfterCheck = false;
+
+ do {
+ if (stream->m_nDeleteMe == 1) {
+ m_streamsToDelete.push(stream);
+ stream->m_nDeleteMe = 2;
+ break;
+ } else if (stream->m_nDeleteMe == 2) {
+ break;
+ }
+
+ if (!stream->IsOpened())
+ break;
+
+ if (stream->m_bReset)
+ break;
+
+ // We gave up this idea for now
+ /*
+ stream->m_pSoundFile->FileOpen();
+
+ // Deffered allocation, do it now
+ if (stream->m_pBuffer == nil) {
+ stream->m_pBuffer = malloc(stream->m_pSoundFile->GetBufferSize());
+ ASSERT(stream->m_pBuffer != nil);
+ }
+ */
+
+ if (stream->m_bDoSeek) {
+ stream->m_bDoSeek = false;
+ int pos = stream->m_SeekPos;
+ lock.unlock();
+ stream->m_pSoundFile->Seek(pos);
+ lock.lock();
+
+ continue; // let's do the checks again, make sure we didn't miss anything while Seeking
+ }
+
+ if (insertBufsAfterCheck) {
+ stream->m_queueBuffers.push(buffers);
+ insertBufsAfterCheck = false;
+ }
+
+ if (!stream->m_fillBuffers.empty()) {
+ lastBufAddr = &stream->m_fillBuffers.front();
+ buffers = *lastBufAddr;
+ lock.unlock();
+
+ ALuint alBuffers[2] = {buffers.first, buffers.second}; // left - right
+ bool filled = stream->FillBuffer(alBuffers);
+
+ lock.lock();
+
+ // Make sure queue isn't touched after we released mutex
+ if (!stream->m_fillBuffers.empty() && lastBufAddr == &stream->m_fillBuffers.front()) {
+ stream->m_fillBuffers.pop();
+ if (filled)
+ insertBufsAfterCheck = true; // Also make sure stream's properties aren't changed. So make one more pass, and push it to m_queueBuffers only if it pass checks again.
+ }
+ } else
+ break;
+
+ } while (true);
+
+ } while(true);
+}
+#endif
+
void CStream::Initialise()
{
#ifdef AUDIO_OAL_USE_MPG123
mpg123_init();
#endif
+#ifdef MULTITHREADED_AUDIO
+ gAudioThread = std::thread(audioFileOpsThread);
+#endif
}
void CStream::Terminate()
@@ -973,6 +1213,14 @@ void CStream::Terminate()
#ifdef AUDIO_OAL_USE_MPG123
mpg123_exit();
#endif
+#ifdef MULTITHREADED_AUDIO
+ gAudioThreadQueueMutex.lock();
+ gAudioThreadTerm = true;
+ gAudioThreadQueueMutex.unlock();
+
+ gAudioThreadCv.notify_one();
+ gAudioThread.join();
+#endif
}
CStream::CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBUFFERS], uint32 overrideSampleRate) :
@@ -981,6 +1229,11 @@ CStream::CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBU
m_pBuffer(nil),
m_bPaused(false),
m_bActive(false),
+#ifdef MULTITHREADED_AUDIO
+ m_nDeleteMe(false),
+ m_bDoSeek(false),
+ m_SeekPos(0),
+#endif
m_pSoundFile(nil),
m_bReset(false),
m_nVolume(0),
@@ -1027,42 +1280,57 @@ CStream::CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBU
if ( IsOpened() )
{
- m_pBuffer = malloc(m_pSoundFile->GetBufferSize());
- ASSERT(m_pBuffer!=nil);
-
- DEV("AvgSamplesPerSec: %d\n", m_pSoundFile->GetAvgSamplesPerSec());
- DEV("SampleCount: %d\n", m_pSoundFile->GetSampleCount());
- DEV("SampleRate: %d\n", m_pSoundFile->GetSampleRate());
- DEV("Channels: %d\n", m_pSoundFile->GetChannels());
- DEV("Buffer Samples: %d\n", m_pSoundFile->GetBufferSamples());
- DEV("Buffer sec: %f\n", (float(m_pSoundFile->GetBufferSamples()) / float(m_pSoundFile->GetChannels())/ float(m_pSoundFile->GetSampleRate())));
- DEV("Length MS: %02d:%02d\n", (m_pSoundFile->GetLength() / 1000) / 60, (m_pSoundFile->GetLength() / 1000) % 60);
-
+ uint32 bufSize = m_pSoundFile->GetBufferSize();
+ if(bufSize != 0) { // Otherwise it's deferred
+ m_pBuffer = malloc(bufSize);
+ ASSERT(m_pBuffer != nil);
+
+ DEV("AvgSamplesPerSec: %d\n", m_pSoundFile->GetAvgSamplesPerSec());
+ DEV("SampleCount: %d\n", m_pSoundFile->GetSampleCount());
+ DEV("SampleRate: %d\n", m_pSoundFile->GetSampleRate());
+ DEV("Channels: %d\n", m_pSoundFile->GetChannels());
+ DEV("Buffer Samples: %d\n", m_pSoundFile->GetBufferSamples());
+ DEV("Buffer sec: %f\n", (float(m_pSoundFile->GetBufferSamples()) / float(m_pSoundFile->GetChannels())/ float(m_pSoundFile->GetSampleRate())));
+ DEV("Length MS: %02d:%02d\n", (m_pSoundFile->GetLength() / 1000) / 60, (m_pSoundFile->GetLength() / 1000) % 60);
+ }
return;
}
}
CStream::~CStream()
{
- Delete();
+ assert(!IsOpened());
}
-void CStream::Delete()
+void CStream::Close()
{
+#ifdef MULTITHREADED_AUDIO
+ {
+ std::lock_guard<std::mutex> lock(m_mutex);
+
+ Stop();
+ ClearBuffers();
+ m_nDeleteMe = true;
+ // clearing buffer queues are not needed. after m_nDeleteMe set, this stream is ded
+ }
+
+ FlagAsToBeProcessed(true);
+#else
Stop();
ClearBuffers();
-
+
if ( m_pSoundFile )
{
delete m_pSoundFile;
m_pSoundFile = nil;
}
-
+
if ( m_pBuffer )
{
free(m_pBuffer);
m_pBuffer = nil;
}
+#endif
}
bool CStream::HasSource()
@@ -1086,6 +1354,14 @@ bool CStream::IsPlaying()
alGetSourcei(m_pAlSources[1], AL_SOURCE_STATE, &sourceState[1]);
if (sourceState[0] == AL_PLAYING || sourceState[1] == AL_PLAYING)
return true;
+
+#ifdef MULTITHREADED_AUDIO
+ std::lock_guard<std::mutex> lock(m_mutex);
+
+ // Streams are designed in such a way that m_fillBuffers and m_queueBuffers will be *always* filled if audio is playing, and mutex is acquired
+ if (!m_fillBuffers.empty() || !m_queueBuffers.emptyNts())
+ return true;
+#endif
}
return false;
@@ -1160,8 +1436,24 @@ void CStream::SetPan(uint8 nPan)
void CStream::SetPosMS(uint32 nPos)
{
if ( !IsOpened() ) return;
- m_pSoundFile->Seek(nPos);
+
+#ifdef MULTITHREADED_AUDIO
+ std::lock_guard<std::mutex> lock(m_mutex);
+
+ std::queue<std::pair<ALuint, ALuint>>().swap(m_fillBuffers);
+ tsQueue<std::pair<ALuint, ALuint>>().swapNts(m_queueBuffers); // TSness not required, second thread always access it when stream mutex acquired
+
+ if (MusicManager.m_nMusicMode != MUSICMODE_CUTSCENE) {
+ m_bDoSeek = true;
+ m_SeekPos = nPos;
+ } else
+#endif
+ {
+ m_pSoundFile->Seek(nPos);
+ }
ClearBuffers();
+
+ // adding to gStreamsToProcess not needed, someone always calls Start() / BuffersShouldBeFilled() after SetPosMS
}
uint32 CStream::GetPosMS()
@@ -1169,10 +1461,16 @@ uint32 CStream::GetPosMS()
if ( !HasSource() ) return 0;
if ( !IsOpened() ) return 0;
+ // Deferred init causes division by zero
+ if (m_pSoundFile->GetChannels() == 0)
+ return 0;
+
ALint offset;
//alGetSourcei(m_alSource, AL_SAMPLE_OFFSET, &offset);
alGetSourcei(m_pAlSources[0], AL_BYTE_OFFSET, &offset);
+ //std::lock_guard<std::mutex> lock(m_mutex);
+
return m_pSoundFile->Tell()
- m_pSoundFile->samples2ms(m_pSoundFile->GetBufferSamples() * (NUM_STREAMBUFFERS/2-1)) / m_pSoundFile->GetChannels()
+ m_pSoundFile->samples2ms(offset/m_pSoundFile->GetSampleSize()) / m_pSoundFile->GetChannels();
@@ -1186,6 +1484,7 @@ uint32 CStream::GetLengthMS()
bool CStream::FillBuffer(ALuint *alBuffer)
{
+#ifndef MULTITHREADED_AUDIO
if ( !HasSource() )
return false;
if ( !IsOpened() )
@@ -1194,13 +1493,14 @@ bool CStream::FillBuffer(ALuint *alBuffer)
return false;
if ( !(alBuffer[1] != AL_NONE && alIsBuffer(alBuffer[1])) )
return false;
-
+#endif
+
uint32 size = m_pSoundFile->Decode(m_pBuffer);
if( size == 0 )
return false;
-
- uint32 channelSize = size / m_pSoundFile->GetChannels();
+ uint32 channelSize = size / m_pSoundFile->GetChannels();
+
alBufferData(alBuffer[0], AL_FORMAT_MONO16, m_pBuffer, channelSize, m_pSoundFile->GetSampleRate());
// TODO: use just one buffer if we play mono
if (m_pSoundFile->GetChannels() == 1)
@@ -1210,6 +1510,26 @@ bool CStream::FillBuffer(ALuint *alBuffer)
return true;
}
+#ifdef MULTITHREADED_AUDIO
+bool CStream::QueueBuffers()
+{
+ bool buffersQueued = false;
+ std::pair<ALuint, ALuint> buffers;
+ while (m_queueBuffers.peekPop(&buffers)) // beware: m_queueBuffers is tsQueue
+ {
+ ALuint leftBuf = buffers.first;
+ ALuint rightBuf = buffers.second;
+
+ alSourceQueueBuffers(m_pAlSources[0], 1, &leftBuf);
+ alSourceQueueBuffers(m_pAlSources[1], 1, &rightBuf);
+
+ buffersQueued = true;
+ }
+ return buffersQueued;
+}
+#endif
+
+// Only used in single-threaded audio or cutscene audio
int32 CStream::FillBuffers()
{
int32 i = 0;
@@ -1239,17 +1559,33 @@ void CStream::ClearBuffers()
alSourceUnqueueBuffers(m_pAlSources[1], 1, &value);
}
-bool CStream::Setup(bool imSureQueueIsEmpty)
+bool CStream::Setup(bool imSureQueueIsEmpty, bool lock)
{
if ( IsOpened() )
{
- alSourcei(m_pAlSources[0], AL_LOOPING, AL_FALSE);
- alSourcei(m_pAlSources[1], AL_LOOPING, AL_FALSE);
+#ifdef MULTITHREADED_AUDIO
+ if (lock)
+ m_mutex.lock();
+#endif
+
if (!imSureQueueIsEmpty) {
- SetPlay(false);
+ Stop();
ClearBuffers();
}
+#ifdef MULTITHREADED_AUDIO
+ if (MusicManager.m_nMusicMode == MUSICMODE_CUTSCENE) {
+ m_pSoundFile->Seek(0);
+ } else {
+ m_bDoSeek = true;
+ m_SeekPos = 0;
+ }
+
+ if (lock)
+ m_mutex.unlock();
+#else
m_pSoundFile->Seek(0);
+#endif
+
//SetPosition(0.0f, 0.0f, 0.0f);
SetPitch(1.0f);
//SetPan(m_nPan);
@@ -1302,8 +1638,12 @@ void CStream::SetPlay(bool state)
void CStream::Start()
{
if ( !HasSource() ) return;
- if ( FillBuffers() != 0 )
- SetPlay(true);
+
+#ifdef MULTITHREADED_AUDIO
+ std::lock_guard<std::mutex> lock(m_mutex);
+ tsQueue<std::pair<ALuint, ALuint>>().swapNts(m_queueBuffers); // TSness not required, second thread always access it when stream mutex acquired
+#endif
+ BuffersShouldBeFilled();
}
void CStream::Stop()
@@ -1325,9 +1665,23 @@ void CStream::Update()
if ( !m_bPaused )
{
- ALint totalBuffers[2] = { 0, 0 };
- ALint buffersProcessed[2] = { 0, 0 };
+ bool buffersQueuedAndStarted = false;
+ bool buffersQueuedButNotStarted = false;
+#ifdef MULTITHREADED_AUDIO
+ // Put it in here because we need totalBuffers after queueing to decide when to loop audio
+ if (m_bActive)
+ {
+ buffersQueuedAndStarted = QueueBuffers();
+ if(buffersQueuedAndStarted) {
+ SetPlay(true);
+ }
+ }
+#endif
+
+ ALint totalBuffers[2] = {0, 0};
+ ALint buffersProcessed[2] = {0, 0};
+
// Relying a lot on left buffer states in here
do
@@ -1339,44 +1693,66 @@ void CStream::Update()
alGetSourcei(m_pAlSources[1], AL_BUFFERS_QUEUED, &totalBuffers[1]);
alGetSourcei(m_pAlSources[1], AL_BUFFERS_PROCESSED, &buffersProcessed[1]);
} while (buffersProcessed[0] != buffersProcessed[1]);
-
+
assert(buffersProcessed[0] == buffersProcessed[1]);
// Correcting OpenAL concepts here:
// AL_BUFFERS_QUEUED = Number of *all* buffers in queue, including processed, processing and pending
// AL_BUFFERS_PROCESSED = Index of the buffer being processing right now. Buffers coming after that(have greater index) are pending buffers.
// which means: totalBuffers[0] - buffersProcessed[0] = pending buffers
-
- bool buffersRefilled = false;
-
+
// We should wait queue to be cleared to loop track, because position calculation relies on queue.
if (m_nLoopCount != 1 && m_bActive && totalBuffers[0] == 0)
{
- Setup(true);
- buffersRefilled = FillBuffers() != 0;
- if (m_nLoopCount != 0)
- m_nLoopCount--;
+#ifdef MULTITHREADED_AUDIO
+ std::lock_guard<std::mutex> lock(m_mutex);
+
+ if (m_fillBuffers.empty() && m_queueBuffers.emptyNts()) // we already acquired stream mutex, which is enough for second thread. thus Nts variant
+#endif
+ {
+ Setup(true, false);
+ BuffersShouldBeFilled(); // will also call SetPlay(true)
+ if (m_nLoopCount != 0)
+ m_nLoopCount--;
+ }
}
else
{
- while( buffersProcessed[0]-- )
+ static std::queue<std::pair<ALuint, ALuint>> tempFillBuffer;
+
+ while ( buffersProcessed[0]-- )
{
ALuint buffer[2];
alSourceUnqueueBuffers(m_pAlSources[0], 1, &buffer[0]);
alSourceUnqueueBuffers(m_pAlSources[1], 1, &buffer[1]);
-
- if (m_bActive && FillBuffer(buffer))
+
+ if (m_bActive)
{
- buffersRefilled = true;
- alSourceQueueBuffers(m_pAlSources[0], 1, &buffer[0]);
- alSourceQueueBuffers(m_pAlSources[1], 1, &buffer[1]);
+ tempFillBuffer.push(std::pair<ALuint, ALuint>(buffer[0], buffer[1]));
}
}
+
+ if (m_bActive && buffersProcessed[1])
+ {
+#ifdef MULTITHREADED_AUDIO
+ m_mutex.lock();
+#endif
+ while (!tempFillBuffer.empty()) {
+ auto elem = tempFillBuffer.front();
+ tempFillBuffer.pop();
+ buffersQueuedButNotStarted = BufferShouldBeFilledAndQueued(&elem);
+ }
+#ifdef MULTITHREADED_AUDIO
+ m_mutex.unlock();
+ FlagAsToBeProcessed();
+#endif
+
+ }
}
- // Two reasons: 1-Source may be starved to audio and stopped itself, 2- We're already waiting it to starve and die for looping track!
- if (m_bActive && (buffersRefilled || (totalBuffers[1] - buffersProcessed[1] != 0)))
+ // Source may be starved to audio and stopped itself
+ if (m_bActive && !buffersQueuedAndStarted && (buffersQueuedButNotStarted || (totalBuffers[1] - buffersProcessed[1] != 0)))
SetPlay(true);
}
}
@@ -1385,28 +1761,45 @@ void CStream::ProviderInit()
{
if ( m_bReset )
{
- if ( Setup(true) )
+ if ( Setup(true, false) ) // lock not needed, thread can't process streams with m_bReset set
{
SetPan(m_nPan);
SetVolume(m_nVolume);
SetLoopCount(m_nLoopCount);
SetPosMS(m_nPosBeforeReset);
- if (m_bActive)
- FillBuffers();
- SetPlay(m_bActive);
- if ( m_bPaused )
+#ifdef MULTITHREADED_AUDIO
+ std::unique_lock<std::mutex> lock(m_mutex);
+#endif
+ if(m_bActive)
+ BuffersShouldBeFilled();
+
+ if (m_bPaused)
Pause();
+
+ m_bReset = false;
+
+ } else {
+#ifdef MULTITHREADED_AUDIO
+ std::unique_lock<std::mutex> lock(m_mutex);
+#endif
+ m_bReset = false;
}
-
- m_bReset = false;
}
}
void CStream::ProviderTerm()
{
+#ifdef MULTITHREADED_AUDIO
+ std::lock_guard<std::mutex> lock(m_mutex);
+
+ // unlike Close() we will reuse this stream, so clearing queues are important.
+ std::queue<std::pair<ALuint, ALuint>>().swap(m_fillBuffers);
+ tsQueue<std::pair<ALuint, ALuint>>().swapNts(m_queueBuffers); // stream mutex is already acquired, thus Nts variant
+#endif
m_bReset = true;
m_nPosBeforeReset = GetPosMS();
-
+
+ Stop();
ClearBuffers();
}
diff --git a/src/audio/oal/stream.h b/src/audio/oal/stream.h
index 9a2a2fbe..bdbf19e0 100644
--- a/src/audio/oal/stream.h
+++ b/src/audio/oal/stream.h
@@ -11,6 +11,7 @@ public:
virtual ~IDecoder() { }
virtual bool IsOpened() = 0;
+ virtual void FileOpen() = 0;
virtual uint32 GetSampleSize() = 0;
virtual uint32 GetSampleCount() = 0;
@@ -48,12 +49,70 @@ public:
uint32 GetLength()
{
+ FileOpen(); // abort deferred init, we need length now - game has to cache audio file sizes
return float(GetSampleCount()) * 1000.0f / float(GetSampleRate());
}
virtual uint32 Decode(void *buffer) = 0;
};
+#ifdef MULTITHREADED_AUDIO
+template <typename T> class tsQueue
+{
+public:
+ tsQueue() : count(0) { }
+
+ void push(const T &value)
+ {
+ std::lock_guard<std::mutex> lock(m_mutex);
+ m_queue.push(value);
+ count++;
+ }
+
+ bool peekPop(T *retVal)
+ {
+ std::lock_guard<std::mutex> lock(m_mutex);
+ if (count == 0)
+ return false;
+
+ *retVal = m_queue.front();
+ m_queue.pop();
+ count--;
+ return true;
+ }
+
+ void swapNts(tsQueue<T> &replaceWith)
+ {
+ m_queue.swap(replaceWith.m_queue);
+ replaceWith.count = count;
+ }
+
+ /*
+ void swapTs(tsQueue<T> &replaceWith)
+ {
+ std::lock_guard<std::mutex> lock(m_mutex);
+ std::lock_guard<std::mutex> lock2(replaceWith.m_mutex);
+ swapNts(replaceWith);
+ }
+ */
+
+ bool emptyNts()
+ {
+ return count == 0;
+ }
+ /*
+ bool emptyTs()
+ {
+ std::lock_guard<std::mutex> lock(m_mutex);
+ return emptyNts();
+ }
+ */
+
+ std::queue<T> m_queue;
+ int count;
+ mutable std::mutex m_mutex;
+};
+#endif
class CStream
{
char m_aFilename[128];
@@ -63,6 +122,16 @@ class CStream
bool m_bPaused;
bool m_bActive;
+public:
+#ifdef MULTITHREADED_AUDIO
+ std::mutex m_mutex;
+ std::queue<std::pair<ALuint, ALuint>> m_fillBuffers; // left and right buffer
+ tsQueue<std::pair<ALuint, ALuint>> m_queueBuffers;
+ bool m_bDoSeek;
+ uint32 m_SeekPos;
+ uint8 m_nDeleteMe; // 1: add to delete list 2: already on delete list
+#endif
+
void *m_pBuffer;
bool m_bReset;
@@ -72,7 +141,14 @@ class CStream
int32 m_nLoopCount;
IDecoder *m_pSoundFile;
-
+
+ void BuffersShouldBeFilled(); // all
+ bool BufferShouldBeFilledAndQueued(std::pair<ALuint, ALuint>*); // two (left-right)
+#ifdef MULTITHREADED_AUDIO
+ void FlagAsToBeProcessed(bool close = false);
+ bool QueueBuffers();
+#endif
+
bool HasSource();
void SetPosition(int i, float x, float y, float z);
void SetPitch(float pitch);
@@ -81,15 +157,15 @@ class CStream
void SetPlay(bool state);
bool FillBuffer(ALuint *alBuffer);
- int32 FillBuffers();
+ int32 FillBuffers();
void ClearBuffers();
-public:
+//public:
static void Initialise();
static void Terminate();
CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBUFFERS], uint32 overrideSampleRate = 32000);
~CStream();
- void Delete();
+ void Close();
bool IsOpened();
bool IsPlaying();
@@ -100,12 +176,11 @@ public:
uint32 GetPosMS();
uint32 GetLengthMS();
- bool Setup(bool imSureQueueIsEmpty = false);
+ bool Setup(bool imSureQueueIsEmpty = false, bool lock = true);
void Start();
void Stop();
void Update(void);
void SetLoopCount(int32);
-
void ProviderInit();
void ProviderTerm();
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 14:10:28 +0100