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-rw-r--r--src/audio/oal/stream.cpp213
-rw-r--r--src/audio/oal/stream.h10
-rw-r--r--src/audio/sampman_oal.cpp21
3 files changed, 184 insertions, 60 deletions
diff --git a/src/audio/oal/stream.cpp b/src/audio/oal/stream.cpp
index 90e90dd8..f36985e5 100644
--- a/src/audio/oal/stream.cpp
+++ b/src/audio/oal/stream.cpp
@@ -19,6 +19,64 @@
#include "crossplatform.h"
#endif
+/*
+As we ran onto an issue of having different volume levels for mono streams
+and stereo streams we are now handling all the stereo panning ourselves.
+Each stream now has two sources - one panned to the left and one to the right,
+and uses two separate buffers to store data for each individual channel.
+For that we also have to reshuffle all decoded PCM stereo data from LRLRLRLR to
+LLLLRRRR (handled by CSortStereoBuffer).
+*/
+
+class CSortStereoBuffer
+{
+ uint16* PcmBuf;
+ size_t BufSize;
+public:
+ CSortStereoBuffer() : PcmBuf(nil), BufSize(0) {}
+ ~CSortStereoBuffer()
+ {
+ if (PcmBuf)
+ free(PcmBuf);
+ }
+
+ uint16* GetBuffer(size_t size)
+ {
+ if (size == 0) return nil;
+ if (!PcmBuf)
+ {
+ BufSize = size;
+ PcmBuf = (uint16*)malloc(BufSize);
+ }
+ else if (BufSize < size)
+ {
+ BufSize = size;
+ PcmBuf = (uint16*)realloc(PcmBuf, size);
+ }
+ return PcmBuf;
+ }
+
+ void SortStereo(void* buf, size_t size)
+ {
+ uint16* InBuf = (uint16*)buf;
+ uint16* OutBuf = GetBuffer(size);
+
+ if (!OutBuf) return;
+
+ size_t rightStart = size / 4;
+ for (size_t i = 0; i < size / 4; i++)
+ {
+ OutBuf[i] = InBuf[i*2];
+ OutBuf[i+rightStart] = InBuf[i*2+1];
+ }
+
+ memcpy(InBuf, OutBuf, size);
+ }
+
+};
+
+CSortStereoBuffer SortStereoBuffer;
+
#ifndef AUDIO_OPUS
class CSndFile : public IDecoder
{
@@ -81,7 +139,11 @@ public:
uint32 Decode(void *buffer)
{
if ( !IsOpened() ) return 0;
- return sf_read_short(m_pfSound, (short *)buffer, GetBufferSamples()) * GetSampleSize();
+
+ size_t size = sf_read_short(m_pfSound, (short*)buffer, GetBufferSamples()) * GetSampleSize();
+ if (GetChannels()==2)
+ SortStereoBuffer.SortStereo(buffer, size);
+ return size;
}
};
@@ -101,6 +163,8 @@ public:
m_pMH = mpg123_new(nil, nil);
if ( m_pMH )
{
+ mpg123_param(m_pMH, MPG123_FLAGS, MPG123_FUZZY | MPG123_SEEKBUFFER | MPG123_GAPLESS, 0.0);
+
long rate = 0;
int channels = 0;
int encoding = 0;
@@ -176,6 +240,8 @@ public:
assert("We can't handle audio files more then 2 GB yet :shrug:" && (size < UINT32_MAX));
#endif
if (err != MPG123_OK && err != MPG123_DONE) return 0;
+ if (GetChannels() == 2)
+ SortStereoBuffer.SortStereo(buffer, size);
return (uint32)size;
}
};
@@ -267,6 +333,9 @@ public:
if (size < 0)
return 0;
+ if (GetChannels() == 2)
+ SortStereoBuffer.SortStereo(buffer, size * m_nChannels * GetSampleSize());
+
return size * m_nChannels * GetSampleSize();
}
};
@@ -286,8 +355,8 @@ void CStream::Terminate()
#endif
}
-CStream::CStream(char *filename, ALuint &source, ALuint (&buffers)[NUM_STREAMBUFFERS]) :
- m_alSource(source),
+CStream::CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBUFFERS]) :
+ m_pAlSources(sources),
m_alBuffers(buffers),
m_pBuffer(nil),
m_bPaused(false),
@@ -368,7 +437,7 @@ void CStream::Delete()
bool CStream::HasSource()
{
- return m_alSource != AL_NONE;
+ return (m_pAlSources[0] != AL_NONE) && (m_pAlSources[1] != AL_NONE);
}
bool CStream::IsOpened()
@@ -382,9 +451,10 @@ bool CStream::IsPlaying()
if ( !m_bPaused )
{
- ALint sourceState;
- alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
- if ( m_bActive || sourceState == AL_PLAYING )
+ 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)
return true;
}
@@ -395,9 +465,12 @@ void CStream::Pause()
{
if ( !HasSource() ) return;
ALint sourceState = AL_PAUSED;
- alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
+ alGetSourcei(m_pAlSources[0], AL_SOURCE_STATE, &sourceState);
if (sourceState != AL_PAUSED )
- alSourcePause(m_alSource);
+ alSourcePause(m_pAlSources[0]);
+ alGetSourcei(m_pAlSources[1], AL_SOURCE_STATE, &sourceState);
+ if (sourceState != AL_PAUSED)
+ alSourcePause(m_pAlSources[1]);
}
void CStream::SetPause(bool bPause)
@@ -419,19 +492,21 @@ void CStream::SetPause(bool bPause)
void CStream::SetPitch(float pitch)
{
if ( !HasSource() ) return;
- alSourcef(m_alSource, AL_PITCH, pitch);
+ alSourcef(m_pAlSources[0], AL_PITCH, pitch);
+ alSourcef(m_pAlSources[1], AL_PITCH, pitch);
}
void CStream::SetGain(float gain)
{
if ( !HasSource() ) return;
- alSourcef(m_alSource, AL_GAIN, gain);
+ alSourcef(m_pAlSources[0], AL_GAIN, gain);
+ alSourcef(m_pAlSources[1], AL_GAIN, gain);
}
-void CStream::SetPosition(float x, float y, float z)
+void CStream::SetPosition(int i, float x, float y, float z)
{
if ( !HasSource() ) return;
- alSource3f(m_alSource, AL_POSITION, x, y, z);
+ alSource3f(m_pAlSources[i], AL_POSITION, x, y, z);
}
void CStream::SetVolume(uint32 nVol)
@@ -442,8 +517,13 @@ void CStream::SetVolume(uint32 nVol)
void CStream::SetPan(uint8 nPan)
{
+ m_nPan = clamp((int8)nPan - 63, 0, 63);
+ SetPosition(0, (m_nPan - 63) / 64.0f, 0.0f, Sqrt(1.0f - SQR((m_nPan - 63) / 64.0f)));
+
+ m_nPan = clamp((int8)nPan + 64, 64, 127);
+ SetPosition(1, (m_nPan - 63) / 64.0f, 0.0f, Sqrt(1.0f - SQR((m_nPan - 63) / 64.0f)));
+
m_nPan = nPan;
- SetPosition((nPan - 63)/64.0f, 0.0f, Sqrt(1.0f-SQR((nPan-63)/64.0f)));
}
void CStream::SetPosMS(uint32 nPos)
@@ -460,10 +540,10 @@ uint32 CStream::GetPosMS()
ALint offset;
//alGetSourcei(m_alSource, AL_SAMPLE_OFFSET, &offset);
- alGetSourcei(m_alSource, AL_BYTE_OFFSET, &offset);
+ alGetSourcei(m_pAlSources[0], AL_BYTE_OFFSET, &offset);
return m_pSoundFile->Tell()
- - m_pSoundFile->samples2ms(m_pSoundFile->GetBufferSamples() * (NUM_STREAMBUFFERS-1)) / m_pSoundFile->GetChannels()
+ - m_pSoundFile->samples2ms(m_pSoundFile->GetBufferSamples() * (NUM_STREAMBUFFERS/2-1)) / m_pSoundFile->GetChannels()
+ m_pSoundFile->samples2ms(offset/m_pSoundFile->GetSampleSize()) / m_pSoundFile->GetChannels();
}
@@ -473,33 +553,41 @@ uint32 CStream::GetLengthMS()
return m_pSoundFile->GetLength();
}
-bool CStream::FillBuffer(ALuint alBuffer)
+bool CStream::FillBuffer(ALuint *alBuffer)
{
if ( !HasSource() )
return false;
if ( !IsOpened() )
return false;
- if ( !(alBuffer != AL_NONE && alIsBuffer(alBuffer)) )
+ if ( !(alBuffer[0] != AL_NONE && alIsBuffer(alBuffer[0])) )
+ return false;
+ if ( !(alBuffer[1] != AL_NONE && alIsBuffer(alBuffer[1])) )
return false;
uint32 size = m_pSoundFile->Decode(m_pBuffer);
if( size == 0 )
return false;
+
+ uint32 channelSize = size / m_pSoundFile->GetChannels();
- alBufferData(alBuffer, m_pSoundFile->GetChannels() == 1 ? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16,
- m_pBuffer, size, m_pSoundFile->GetSampleRate());
-
+ 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)
+ alBufferData(alBuffer[1], AL_FORMAT_MONO16, m_pBuffer, channelSize, m_pSoundFile->GetSampleRate());
+ else
+ alBufferData(alBuffer[1], AL_FORMAT_MONO16, (uint8*)m_pBuffer + channelSize, channelSize, m_pSoundFile->GetSampleRate());
return true;
}
int32 CStream::FillBuffers()
{
int32 i = 0;
- for ( i = 0; i < NUM_STREAMBUFFERS; i++ )
+ for ( i = 0; i < NUM_STREAMBUFFERS/2; i++ )
{
- if ( !FillBuffer(m_alBuffers[i]) )
+ if ( !FillBuffer(&m_alBuffers[i*2]) )
break;
- alSourceQueueBuffers(m_alSource, 1, &m_alBuffers[i]);
+ alSourceQueueBuffers(m_pAlSources[0], 1, &m_alBuffers[i*2]);
+ alSourceQueueBuffers(m_pAlSources[1], 1, &m_alBuffers[i*2+1]);
}
return i;
@@ -508,13 +596,16 @@ int32 CStream::FillBuffers()
void CStream::ClearBuffers()
{
if ( !HasSource() ) return;
-
- ALint buffersQueued;
- alGetSourcei(m_alSource, AL_BUFFERS_QUEUED, &buffersQueued);
+
+ ALint buffersQueued[2];
+ alGetSourcei(m_pAlSources[0], AL_BUFFERS_QUEUED, &buffersQueued[0]);
+ alGetSourcei(m_pAlSources[1], AL_BUFFERS_QUEUED, &buffersQueued[1]);
ALuint value;
- while (buffersQueued--)
- alSourceUnqueueBuffers(m_alSource, 1, &value);
+ while (buffersQueued[0]--)
+ alSourceUnqueueBuffers(m_pAlSources[0], 1, &value);
+ while (buffersQueued[1]--)
+ alSourceUnqueueBuffers(m_pAlSources[1], 1, &value);
}
bool CStream::Setup()
@@ -522,7 +613,6 @@ bool CStream::Setup()
if ( IsOpened() )
{
m_pSoundFile->Seek(0);
- alSourcei(m_alSource, AL_SOURCE_RELATIVE, AL_TRUE);
//SetPosition(0.0f, 0.0f, 0.0f);
SetPitch(1.0f);
//SetPan(m_nPan);
@@ -538,17 +628,29 @@ void CStream::SetPlay(bool state)
if ( state )
{
ALint sourceState = AL_PLAYING;
- alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
+ alGetSourcei(m_pAlSources[0], AL_SOURCE_STATE, &sourceState);
if (sourceState != AL_PLAYING )
- alSourcePlay(m_alSource);
+ alSourcePlay(m_pAlSources[0]);
+
+ sourceState = AL_PLAYING;
+ alGetSourcei(m_pAlSources[1], AL_SOURCE_STATE, &sourceState);
+ if (sourceState != AL_PLAYING)
+ alSourcePlay(m_pAlSources[1]);
+
m_bActive = true;
}
else
{
ALint sourceState = AL_STOPPED;
- alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
- if (sourceState != AL_STOPPED )
- alSourceStop(m_alSource);
+ alGetSourcei(m_pAlSources[0], AL_SOURCE_STATE, &sourceState);
+ if (sourceState != AL_STOPPED)
+ alSourceStop(m_pAlSources[0]);
+
+ sourceState = AL_STOPPED;
+ alGetSourcei(m_pAlSources[1], AL_SOURCE_STATE, &sourceState);
+ if (sourceState != AL_STOPPED)
+ alSourceStop(m_pAlSources[1]);
+
m_bActive = false;
}
}
@@ -579,35 +681,48 @@ void CStream::Update()
if ( !m_bPaused )
{
- ALint sourceState;
- ALint buffersProcessed = 0;
+ ALint sourceState[2];
+ ALint buffersProcessed[2] = { 0, 0 };
- alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
- alGetSourcei(m_alSource, AL_BUFFERS_PROCESSED, &buffersProcessed);
+ // Relying a lot on left buffer states in here
+
+ //alSourcef(m_pAlSources[0], AL_ROLLOFF_FACTOR, 0.0f);
+ alGetSourcei(m_pAlSources[0], AL_SOURCE_STATE, &sourceState[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_PROCESSED, &buffersProcessed[1]);
ALint looping = AL_FALSE;
- alGetSourcei(m_alSource, AL_LOOPING, &looping);
+ alGetSourcei(m_pAlSources[0], AL_LOOPING, &looping);
if ( looping == AL_TRUE )
{
TRACE("stream set looping");
- alSourcei(m_alSource, AL_LOOPING, AL_TRUE);
+ alSourcei(m_pAlSources[0], AL_LOOPING, AL_TRUE);
+ alSourcei(m_pAlSources[1], AL_LOOPING, AL_TRUE);
}
+
+ assert(buffersProcessed[0] == buffersProcessed[1]);
- while( buffersProcessed-- )
+ while( buffersProcessed[0]-- )
{
- ALuint buffer;
+ ALuint buffer[2];
- alSourceUnqueueBuffers(m_alSource, 1, &buffer);
+ alSourceUnqueueBuffers(m_pAlSources[0], 1, &buffer[0]);
+ alSourceUnqueueBuffers(m_pAlSources[1], 1, &buffer[1]);
- if ( m_bActive && FillBuffer(buffer) )
- alSourceQueueBuffers(m_alSource, 1, &buffer);
+ if (m_bActive && FillBuffer(buffer))
+ {
+ alSourceQueueBuffers(m_pAlSources[0], 1, &buffer[0]);
+ alSourceQueueBuffers(m_pAlSources[1], 1, &buffer[1]);
+ }
}
- if ( sourceState != AL_PLAYING )
+ if ( sourceState[0] != AL_PLAYING )
{
- alGetSourcei(m_alSource, AL_BUFFERS_PROCESSED, &buffersProcessed);
- SetPlay(buffersProcessed!=0);
+ alGetSourcei(m_pAlSources[0], AL_BUFFERS_PROCESSED, &buffersProcessed[0]);
+ SetPlay(buffersProcessed[0]!=0);
}
}
}
diff --git a/src/audio/oal/stream.h b/src/audio/oal/stream.h
index 2476abcc..326ce6a1 100644
--- a/src/audio/oal/stream.h
+++ b/src/audio/oal/stream.h
@@ -3,7 +3,7 @@
#ifdef AUDIO_OAL
#include <AL/al.h>
-#define NUM_STREAMBUFFERS 4
+#define NUM_STREAMBUFFERS 8
class IDecoder
{
@@ -57,7 +57,7 @@ public:
class CStream
{
char m_aFilename[128];
- ALuint &m_alSource;
+ ALuint *m_pAlSources;
ALuint (&m_alBuffers)[NUM_STREAMBUFFERS];
bool m_bPaused;
@@ -73,20 +73,20 @@ class CStream
IDecoder *m_pSoundFile;
bool HasSource();
- void SetPosition(float x, float y, float z);
+ void SetPosition(int i, float x, float y, float z);
void SetPitch(float pitch);
void SetGain(float gain);
void Pause();
void SetPlay(bool state);
- bool FillBuffer(ALuint alBuffer);
+ bool FillBuffer(ALuint *alBuffer);
int32 FillBuffers();
void ClearBuffers();
public:
static void Initialise();
static void Terminate();
- CStream(char *filename, ALuint &source, ALuint (&buffers)[NUM_STREAMBUFFERS]);
+ CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBUFFERS]);
~CStream();
void Delete();
diff --git a/src/audio/sampman_oal.cpp b/src/audio/sampman_oal.cpp
index 7d6f429d..5579644c 100644
--- a/src/audio/sampman_oal.cpp
+++ b/src/audio/sampman_oal.cpp
@@ -102,7 +102,7 @@ CChannel aChannel[MAXCHANNELS+MAX2DCHANNELS];
uint8 nChannelVolume[MAXCHANNELS+MAX2DCHANNELS];
uint32 nStreamLength[TOTAL_STREAMED_SOUNDS];
-ALuint ALStreamSources[MAX_STREAMS];
+ALuint ALStreamSources[MAX_STREAMS][2];
ALuint ALStreamBuffers[MAX_STREAMS][NUM_STREAMBUFFERS];
struct tMP3Entry
@@ -245,9 +245,9 @@ release_existing()
if (stream)
stream->ProviderTerm();
- alDeleteSources(1, &ALStreamSources[i]);
alDeleteBuffers(NUM_STREAMBUFFERS, ALStreamBuffers[i]);
}
+ alDeleteSources(MAX_STREAMS*2, ALStreamSources[0]);
CChannel::DestroyChannels();
@@ -287,7 +287,10 @@ set_new_provider(int index)
//TODO:
_maxSamples = MAXCHANNELS;
- ALCint attr[] = {ALC_FREQUENCY,MAX_FREQ,0};
+ ALCint attr[] = {ALC_FREQUENCY,MAX_FREQ,
+ ALC_MONO_SOURCES, MAX_STREAMS * 2 + MAXCHANNELS,
+ 0,
+ };
ALDevice = alcOpenDevice(providers[index].id);
ASSERT(ALDevice != NULL);
@@ -319,11 +322,17 @@ set_new_provider(int index)
alGenAuxiliaryEffectSlots(1, &ALEffectSlot);
alGenEffects(1, &ALEffect);
}
-
+
+ alGenSources(MAX_STREAMS*2, ALStreamSources[0]);
for ( int32 i = 0; i < MAX_STREAMS; i++ )
{
- alGenSources(1, &ALStreamSources[i]);
- alGenBuffers(NUM_STREAMBUFFERS, ALStreamBuffers[i]);
+ alGenBuffers(NUM_STREAMBUFFERS, ALStreamBuffers[i]);
+ alSourcei(ALStreamSources[i][0], AL_SOURCE_RELATIVE, AL_TRUE);
+ alSource3f(ALStreamSources[i][0], AL_POSITION, 0.0f, 0.0f, 0.0f);
+ alSourcef(ALStreamSources[i][0], AL_GAIN, 1.0f);
+ alSourcei(ALStreamSources[i][1], AL_SOURCE_RELATIVE, AL_TRUE);
+ alSource3f(ALStreamSources[i][1], AL_POSITION, 0.0f, 0.0f, 0.0f);
+ alSourcef(ALStreamSources[i][1], AL_GAIN, 1.0f);
CStream *stream = aStream[i];
if (stream)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 08:50:59 +0100