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OAL Loops, fixes

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This commit is contained in:
erorcun 2021-02-02 16:39:08 +03:00
parent 1667ffdd8f
commit 7ff899bd22
5 changed files with 137 additions and 67 deletions
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56
src/audio/oal/channel.cpp
View file

@ -15,6 +15,8 @@ ALuint alFilters[MAXCHANNELS+MAX2DCHANNELS];
ALuint alBuffers[MAXCHANNELS+MAX2DCHANNELS];
bool bChannelsCreated = false;
int32 CChannel::channelsThatNeedService = 0;
void
CChannel::InitChannels()
{
@ -59,7 +61,9 @@ void CChannel::SetDefault()
Position[0] = 0.0f; Position[1] = 0.0f; Position[2] = 0.0f;
Distances[0] = 0.0f; Distances[1] = FLT_MAX;
LoopCount = 1;
LoopCount = 1;
LastProcessedOffset = UINT32_MAX;
LoopPoints[0] = 0; LoopPoints[1] = -1;
Frequency = MAX_FREQ;
@ -67,6 +71,10 @@ void CChannel::SetDefault()
void CChannel::Reset()
{
// Here is safe because ctor don't call this
if (LoopCount > 1)
channelsThatNeedService--;
ClearBuffer();
SetDefault();
}
@ -165,10 +173,51 @@ void CChannel::SetCurrentFreq(uint32 freq)
SetPitch(ALfloat(freq) / Frequency);
}
void CChannel::SetLoopCount(int32 loopCount) // fake. TODO:
void CChannel::SetLoopCount(int32 count)
{
if ( !HasSource() ) return;
alSourcei(alSources[id], AL_LOOPING, loopCount == 1 ? AL_FALSE : AL_TRUE);
// 0: loop indefinitely, 1: play one time, 2: play two times etc...
// only > 1 needs manual processing
if (LoopCount > 1 && count < 2)
channelsThatNeedService--;
else if (LoopCount < 2 && count > 1)
channelsThatNeedService++;
alSourcei(alSources[id], AL_LOOPING, count == 1 ? AL_FALSE : AL_TRUE);
LoopCount = count;
}
bool CChannel::Update()
{
if (!HasSource()) return false;
if (LoopCount < 2) return false;
ALint state;
alGetSourcei(alSources[id], AL_SOURCE_STATE, &state);
if (state == AL_STOPPED) {
debug("Looping channels(%d in this case) shouldn't report AL_STOPPED, but nvm\n", id);
SetLoopCount(1);
return true;
}
assert(channelsThatNeedService > 0 && "Ref counting is broken");
ALint offset;
alGetSourcei(alSources[id], AL_SAMPLE_OFFSET, &offset);
// Rewound
if (offset < LastProcessedOffset) {
LoopCount--;
if (LoopCount == 1) {
// Playing last tune...
channelsThatNeedService--;
alSourcei(alSources[id], AL_LOOPING, AL_FALSE);
}
}
LastProcessedOffset = offset;
return true;
}
void CChannel::SetLoopPoints(ALint start, ALint end)
@ -200,6 +249,7 @@ void CChannel::SetPan(int32 pan)
void CChannel::ClearBuffer()
{
if ( !HasSource() ) return;
alSourcei(alSources[id], AL_LOOPING, AL_FALSE);
alSourcei(alSources[id], AL_BUFFER, AL_NONE);
Data = nil;
DataSize = 0;

6
src/audio/oal/channel.h
View file

@ -19,7 +19,10 @@ class CChannel
float Distances[2];
int32 LoopCount;
ALint LoopPoints[2];
ALint LastProcessedOffset;
public:
static int32 channelsThatNeedService;
static void InitChannels();
static void DestroyChannels();
@ -37,7 +40,7 @@ public:
void SetVolume(int32 vol);
void SetSampleData(void *_data, size_t _DataSize, int32 freq);
void SetCurrentFreq(uint32 freq);
void SetLoopCount(int32 loopCount); // fake
void SetLoopCount(int32 count);
void SetLoopPoints(ALint start, ALint end);
void SetPosition(float x, float y, float z);
void SetDistances(float max, float min);
@ -45,6 +48,7 @@ public:
void ClearBuffer();
void SetReverbMix(ALuint slot, float mix);
void UpdateReverb(ALuint slot);
bool Update();
};
#endif

81
src/audio/oal/stream.cpp
View file

@ -492,6 +492,7 @@ public:
m_bOpened = mpg123_open(m_pMH, path) == MPG123_OK
&& mpg123_getformat(m_pMH, &rate, &channels, &encoding) == MPG123_OK;
m_nRate = rate;
m_nChannels = channels;
@ -925,7 +926,8 @@ CStream::CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBU
m_bReset(false),
m_nVolume(0),
m_nPan(0),
m_nPosBeforeReset(0)
m_nPosBeforeReset(0),
m_nLoopCount(1)
{
// Be case-insensitive on linux (from https://github.com/OneSadCookie/fcaseopen/)
@ -1021,7 +1023,7 @@ bool CStream::IsPlaying()
ALint sourceState[2];
alGetSourcei(m_pAlSources[0], AL_SOURCE_STATE, &sourceState[0]);
alGetSourcei(m_pAlSources[1], AL_SOURCE_STATE, &sourceState[1]);
if ( m_bActive || sourceState[0] == AL_PLAYING || sourceState[1] == AL_PLAYING)
if (sourceState[0] == AL_PLAYING || sourceState[1] == AL_PLAYING)
return true;
}
@ -1179,6 +1181,8 @@ bool CStream::Setup()
{
if ( IsOpened() )
{
alSourcei(m_pAlSources[0], AL_LOOPING, AL_FALSE);
alSourcei(m_pAlSources[1], AL_LOOPING, AL_FALSE);
m_pSoundFile->Seek(0);
//SetPosition(0.0f, 0.0f, 0.0f);
SetPitch(1.0f);
@ -1189,6 +1193,13 @@ bool CStream::Setup()
return IsOpened();
}
void CStream::SetLoopCount(int32 count)
{
if ( !HasSource() ) return;
m_nLoopCount = count;
}
void CStream::SetPlay(bool state)
{
if ( !HasSource() ) return;
@ -1248,7 +1259,7 @@ void CStream::Update()
if ( !m_bPaused )
{
ALint sourceState[2];
ALint totalBuffers[2] = { 0, 0 };
ALint buffersProcessed[2] = { 0, 0 };
// Relying a lot on left buffer states in here
@ -1256,44 +1267,51 @@ void CStream::Update()
do
{
//alSourcef(m_pAlSources[0], AL_ROLLOFF_FACTOR, 0.0f);
alGetSourcei(m_pAlSources[0], AL_SOURCE_STATE, &sourceState[0]);
alGetSourcei(m_pAlSources[0], AL_BUFFERS_QUEUED, &totalBuffers[0]);
alGetSourcei(m_pAlSources[0], AL_BUFFERS_PROCESSED, &buffersProcessed[0]);
//alSourcef(m_pAlSources[1], AL_ROLLOFF_FACTOR, 0.0f);
alGetSourcei(m_pAlSources[1], AL_SOURCE_STATE, &sourceState[1]);
alGetSourcei(m_pAlSources[1], AL_BUFFERS_QUEUED, &totalBuffers[1]);
alGetSourcei(m_pAlSources[1], AL_BUFFERS_PROCESSED, &buffersProcessed[1]);
} while (buffersProcessed[0] != buffersProcessed[1]);
ALint looping = AL_FALSE;
alGetSourcei(m_pAlSources[0], AL_LOOPING, &looping);
if ( looping == AL_TRUE )
{
TRACE("stream set looping");
alSourcei(m_pAlSources[0], AL_LOOPING, AL_TRUE);
alSourcei(m_pAlSources[1], AL_LOOPING, AL_TRUE);
}
assert(buffersProcessed[0] == buffersProcessed[1]);
while( buffersProcessed[0]-- )
// 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)
{
ALuint buffer[2];
alSourceUnqueueBuffers(m_pAlSources[0], 1, &buffer[0]);
alSourceUnqueueBuffers(m_pAlSources[1], 1, &buffer[1]);
if (m_bActive && FillBuffer(buffer))
Setup();
buffersRefilled = FillBuffers() != 0;
if (m_nLoopCount != 0)
m_nLoopCount--;
}
else
{
while( buffersProcessed[0]-- )
{
alSourceQueueBuffers(m_pAlSources[0], 1, &buffer[0]);
alSourceQueueBuffers(m_pAlSources[1], 1, &buffer[1]);
ALuint buffer[2];
alSourceUnqueueBuffers(m_pAlSources[0], 1, &buffer[0]);
alSourceUnqueueBuffers(m_pAlSources[1], 1, &buffer[1]);
if (m_bActive && FillBuffer(buffer))
{
buffersRefilled = true;
alSourceQueueBuffers(m_pAlSources[0], 1, &buffer[0]);
alSourceQueueBuffers(m_pAlSources[1], 1, &buffer[1]);
}
}
}
if ( sourceState[0] != AL_PLAYING )
{
alGetSourcei(m_pAlSources[0], AL_BUFFERS_PROCESSED, &buffersProcessed[0]);
SetPlay(buffersProcessed[0]!=0);
}
// 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)))
SetPlay(true);
}
}
@ -1305,6 +1323,7 @@ void CStream::ProviderInit()
{
SetPan(m_nPan);
SetVolume(m_nVolume);
SetLoopCount(m_nLoopCount);
SetPosMS(m_nPosBeforeReset);
if (m_bActive)
FillBuffers();

3
src/audio/oal/stream.h
View file

@ -69,6 +69,7 @@ class CStream
uint32 m_nVolume;
uint8 m_nPan;
uint32 m_nPosBeforeReset;
int32 m_nLoopCount;
IDecoder *m_pSoundFile;
@ -103,6 +104,8 @@ public:
void Start();
void Stop();
void Update(void);
void SetLoopCount(int32);
void ProviderInit();
void ProviderTerm();

58
src/audio/sampman_oal.cpp
View file

@ -44,7 +44,6 @@
//TODO: fix eax3 reverb
//TODO: max channels
//TODO: loop count
cSampleManager SampleManager;
bool _bSampmanInitialised = false;
@ -117,7 +116,6 @@ char _mp3DirectoryPath[MAX_PATH];
CStream *aStream[MAX_STREAMS];
uint8 nStreamPan [MAX_STREAMS];
uint8 nStreamVolume[MAX_STREAMS];
uint8 nStreamLoopedFlag[MAX_STREAMS];
uint32 _CurMP3Index;
int32 _CurMP3Pos;
bool _bIsMp3Active;
@ -1666,7 +1664,7 @@ cSampleManager::PreloadStreamedFile(uint8 nFile, uint8 nStream)
ASSERT(stream != NULL);
aStream[nStream] = stream;
if ( !stream->IsOpened() )
if ( !stream->Setup() )
{
delete stream;
aStream[nStream] = NULL;
@ -1696,7 +1694,7 @@ cSampleManager::StartPreloadedStreamedFile(uint8 nStream)
if ( stream )
{
if ( stream->Setup() )
if ( stream->IsOpened() )
{
stream->Start();
}
@ -1742,13 +1740,11 @@ cSampleManager::StartStreamedFile(uint8 nFile, uint32 nPos, uint8 nStream)
aStream[nStream] = stream;
if (stream->IsOpened()) {
if (stream->Setup()) {
if (position != 0)
stream->SetPosMS(position);
if (stream->Setup()) {
if (position != 0)
stream->SetPosMS(position);
stream->Start();
}
stream->Start();
return true;
} else {
@ -1769,10 +1765,8 @@ cSampleManager::StartStreamedFile(uint8 nFile, uint32 nPos, uint8 nStream)
aStream[nStream] = new CStream(filename, ALStreamSources[nStream], ALStreamBuffers[nStream], IsThisTrackAt16KHz(nFile) ? 16000 : 32000);
}
if (aStream[nStream]->IsOpened()) {
if (aStream[nStream]->Setup()) {
aStream[nStream]->Start();
}
if (aStream[nStream]->Setup()) {
aStream[nStream]->Start();
return true;
} else {
@ -1798,13 +1792,11 @@ cSampleManager::StartStreamedFile(uint8 nFile, uint32 nPos, uint8 nStream)
aStream[nStream] = stream;
if (stream->IsOpened()) {
if (stream->Setup()) {
if (position != 0)
stream->SetPosMS(position);
if (stream->Setup()) {
if (position != 0)
stream->SetPosMS(position);
stream->Start();
}
stream->Start();
return true;
} else {
@ -1825,13 +1817,11 @@ cSampleManager::StartStreamedFile(uint8 nFile, uint32 nPos, uint8 nStream)
aStream[nStream] = new CStream(filename, ALStreamSources[nStream], ALStreamBuffers[nStream]);
}
if (aStream[nStream]->IsOpened()) {
if (aStream[nStream]->Setup()) {
if (position != 0)
aStream[nStream]->SetPosMS(position);
if (aStream[nStream]->Setup()) {
if (position != 0)
aStream[nStream]->SetPosMS(position);
aStream[nStream]->Start();
}
aStream[nStream]->Start();
_bIsMp3Active = true;
return true;
@ -1855,13 +1845,11 @@ cSampleManager::StartStreamedFile(uint8 nFile, uint32 nPos, uint8 nStream)
aStream[nStream] = stream;
if ( stream->IsOpened() ) {
if ( stream->Setup() ) {
if (position != 0)
stream->SetPosMS(position);
if ( stream->Setup() ) {
if (position != 0)
stream->SetPosMS(position);
stream->Start();
}
stream->Start();
return true;
} else {
@ -1963,6 +1951,12 @@ cSampleManager::Service(void)
if ( stream )
stream->Update();
}
int refCount = CChannel::channelsThatNeedService;
for ( int32 i = 0; refCount && i < MAXCHANNELS+MAX2DCHANNELS; i++ )
{
if ( aChannel[i].Update() )
refCount--;
}
}
bool