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https://github.com/GTAmodding/re3.git
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Handle stereo panning in OAL manually for streams
This commit is contained in:
Sergeanur
parent
047f9c49ec
commit
150f5302b7
3 changed files with 189 additions and 65 deletions
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@ -19,6 +19,64 @@
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#include "crossplatform.h"
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#endif
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/*
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As we ran onto an issue of having different volume levels for mono streams
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and stereo streams we are now handling all the stereo panning ourselves.
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Each stream now has two sources - one panned to the left and one to the right,
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and uses two separate buffers to store data for each individual channel.
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For that we also have to reshuffle all decoded PCM stereo data from LRLRLRLR to
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LLLLRRRR (handled by CSortStereoBuffer).
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*/
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class CSortStereoBuffer
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{
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uint16* PcmBuf;
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size_t BufSize;
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public:
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CSortStereoBuffer() : PcmBuf(nil), BufSize(0) {}
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~CSortStereoBuffer()
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{
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if (PcmBuf)
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free(PcmBuf);
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}
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uint16* GetBuffer(size_t size)
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{
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if (size == 0) return nil;
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if (!PcmBuf)
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{
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BufSize = size;
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PcmBuf = (uint16*)malloc(BufSize);
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}
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else if (BufSize < size)
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{
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BufSize = size;
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PcmBuf = (uint16*)realloc(PcmBuf, size);
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}
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return PcmBuf;
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}
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void SortStereo(void* buf, size_t size)
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{
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uint16* InBuf = (uint16*)buf;
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uint16* OutBuf = GetBuffer(size);
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if (!OutBuf) return;
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size_t rightStart = size / 4;
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for (size_t i = 0; i < size / 4; i++)
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{
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OutBuf[i] = InBuf[i*2];
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OutBuf[i+rightStart] = InBuf[i*2+1];
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}
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memcpy(InBuf, OutBuf, size);
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}
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};
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CSortStereoBuffer SortStereoBuffer;
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#ifndef AUDIO_OPUS
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class CSndFile : public IDecoder
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{
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@ -81,7 +139,11 @@ public:
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uint32 Decode(void *buffer)
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{
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if ( !IsOpened() ) return 0;
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return sf_read_short(m_pfSound, (short *)buffer, GetBufferSamples()) * GetSampleSize();
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size_t size = sf_read_short(m_pfSound, (short*)buffer, GetBufferSamples()) * GetSampleSize();
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if (GetChannels()==2)
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SortStereoBuffer.SortStereo(buffer, size);
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return size;
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}
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};
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@ -101,6 +163,8 @@ public:
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m_pMH = mpg123_new(nil, nil);
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if ( m_pMH )
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{
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mpg123_param(m_pMH, MPG123_FLAGS, MPG123_FUZZY | MPG123_SEEKBUFFER | MPG123_GAPLESS, 0.0);
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long rate = 0;
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int channels = 0;
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int encoding = 0;
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@ -176,6 +240,8 @@ public:
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assert("We can't handle audio files more then 2 GB yet :shrug:" && (size < UINT32_MAX));
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#endif
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if (err != MPG123_OK && err != MPG123_DONE) return 0;
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if (GetChannels() == 2)
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SortStereoBuffer.SortStereo(buffer, size);
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return (uint32)size;
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}
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};
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@ -267,6 +333,9 @@ public:
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if (size < 0)
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return 0;
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if (GetChannels() == 2)
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SortStereoBuffer.SortStereo(buffer, size * m_nChannels * GetSampleSize());
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return size * m_nChannels * GetSampleSize();
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}
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};
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@ -286,8 +355,8 @@ void CStream::Terminate()
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#endif
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}
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CStream::CStream(char *filename, ALuint &source, ALuint (&buffers)[NUM_STREAMBUFFERS]) :
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m_alSource(source),
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CStream::CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBUFFERS]) :
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m_pAlSources(sources),
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m_alBuffers(buffers),
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m_pBuffer(nil),
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m_bPaused(false),
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@ -368,7 +437,7 @@ void CStream::Delete()
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bool CStream::HasSource()
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{
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return m_alSource != AL_NONE;
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return (m_pAlSources[0] != AL_NONE) && (m_pAlSources[1] != AL_NONE);
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}
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bool CStream::IsOpened()
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@ -382,9 +451,10 @@ bool CStream::IsPlaying()
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if ( !m_bPaused )
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{
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ALint sourceState;
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alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
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if ( m_bActive || sourceState == AL_PLAYING )
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ALint sourceState[2];
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alGetSourcei(m_pAlSources[0], AL_SOURCE_STATE, &sourceState[0]);
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alGetSourcei(m_pAlSources[1], AL_SOURCE_STATE, &sourceState[1]);
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if ( m_bActive || sourceState[0] == AL_PLAYING || sourceState[1] == AL_PLAYING)
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return true;
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}
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@ -395,9 +465,12 @@ void CStream::Pause()
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{
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if ( !HasSource() ) return;
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ALint sourceState = AL_PAUSED;
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alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
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alGetSourcei(m_pAlSources[0], AL_SOURCE_STATE, &sourceState);
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if (sourceState != AL_PAUSED )
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alSourcePause(m_alSource);
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alSourcePause(m_pAlSources[0]);
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alGetSourcei(m_pAlSources[1], AL_SOURCE_STATE, &sourceState);
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if (sourceState != AL_PAUSED)
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alSourcePause(m_pAlSources[1]);
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}
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void CStream::SetPause(bool bPause)
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@ -419,19 +492,21 @@ void CStream::SetPause(bool bPause)
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void CStream::SetPitch(float pitch)
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{
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if ( !HasSource() ) return;
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alSourcef(m_alSource, AL_PITCH, pitch);
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alSourcef(m_pAlSources[0], AL_PITCH, pitch);
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alSourcef(m_pAlSources[1], AL_PITCH, pitch);
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}
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void CStream::SetGain(float gain)
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{
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if ( !HasSource() ) return;
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alSourcef(m_alSource, AL_GAIN, gain);
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alSourcef(m_pAlSources[0], AL_GAIN, gain);
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alSourcef(m_pAlSources[1], AL_GAIN, gain);
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}
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void CStream::SetPosition(float x, float y, float z)
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void CStream::SetPosition(int i, float x, float y, float z)
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{
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if ( !HasSource() ) return;
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alSource3f(m_alSource, AL_POSITION, x, y, z);
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alSource3f(m_pAlSources[i], AL_POSITION, x, y, z);
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}
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void CStream::SetVolume(uint32 nVol)
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@ -442,8 +517,13 @@ void CStream::SetVolume(uint32 nVol)
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void CStream::SetPan(uint8 nPan)
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{
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m_nPan = clamp((int8)nPan - 63, 0, 63);
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SetPosition(0, (m_nPan - 63) / 64.0f, 0.0f, Sqrt(1.0f - SQR((m_nPan - 63) / 64.0f)));
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m_nPan = clamp((int8)nPan + 64, 64, 127);
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SetPosition(1, (m_nPan - 63) / 64.0f, 0.0f, Sqrt(1.0f - SQR((m_nPan - 63) / 64.0f)));
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m_nPan = nPan;
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SetPosition((nPan - 63)/64.0f, 0.0f, Sqrt(1.0f-SQR((nPan-63)/64.0f)));
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}
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void CStream::SetPosMS(uint32 nPos)
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@ -460,10 +540,10 @@ uint32 CStream::GetPosMS()
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ALint offset;
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//alGetSourcei(m_alSource, AL_SAMPLE_OFFSET, &offset);
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alGetSourcei(m_alSource, AL_BYTE_OFFSET, &offset);
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alGetSourcei(m_pAlSources[0], AL_BYTE_OFFSET, &offset);
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return m_pSoundFile->Tell()
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- m_pSoundFile->samples2ms(m_pSoundFile->GetBufferSamples() * (NUM_STREAMBUFFERS-1)) / m_pSoundFile->GetChannels()
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- m_pSoundFile->samples2ms(m_pSoundFile->GetBufferSamples() * (NUM_STREAMBUFFERS/2-1)) / m_pSoundFile->GetChannels()
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+ m_pSoundFile->samples2ms(offset/m_pSoundFile->GetSampleSize()) / m_pSoundFile->GetChannels();
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}
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@ -473,33 +553,41 @@ uint32 CStream::GetLengthMS()
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return m_pSoundFile->GetLength();
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}
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bool CStream::FillBuffer(ALuint alBuffer)
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bool CStream::FillBuffer(ALuint *alBuffer)
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{
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if ( !HasSource() )
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return false;
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if ( !IsOpened() )
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return false;
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if ( !(alBuffer != AL_NONE && alIsBuffer(alBuffer)) )
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if ( !(alBuffer[0] != AL_NONE && alIsBuffer(alBuffer[0])) )
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return false;
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if ( !(alBuffer[1] != AL_NONE && alIsBuffer(alBuffer[1])) )
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return false;
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uint32 size = m_pSoundFile->Decode(m_pBuffer);
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if( size == 0 )
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return false;
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uint32 channelSize = size / m_pSoundFile->GetChannels();
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alBufferData(alBuffer, m_pSoundFile->GetChannels() == 1 ? AL_FORMAT_MONO16 : AL_FORMAT_STEREO16,
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m_pBuffer, size, m_pSoundFile->GetSampleRate());
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alBufferData(alBuffer[0], AL_FORMAT_MONO16, m_pBuffer, channelSize, m_pSoundFile->GetSampleRate());
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// TODO: use just one buffer if we play mono
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if (m_pSoundFile->GetChannels() == 1)
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alBufferData(alBuffer[1], AL_FORMAT_MONO16, m_pBuffer, channelSize, m_pSoundFile->GetSampleRate());
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else
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alBufferData(alBuffer[1], AL_FORMAT_MONO16, (uint8*)m_pBuffer + channelSize, channelSize, m_pSoundFile->GetSampleRate());
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return true;
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}
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int32 CStream::FillBuffers()
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{
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int32 i = 0;
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for ( i = 0; i < NUM_STREAMBUFFERS; i++ )
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for ( i = 0; i < NUM_STREAMBUFFERS/2; i++ )
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{
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if ( !FillBuffer(m_alBuffers[i]) )
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if ( !FillBuffer(&m_alBuffers[i*2]) )
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break;
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alSourceQueueBuffers(m_alSource, 1, &m_alBuffers[i]);
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alSourceQueueBuffers(m_pAlSources[0], 1, &m_alBuffers[i*2]);
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alSourceQueueBuffers(m_pAlSources[1], 1, &m_alBuffers[i*2+1]);
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}
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return i;
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@ -508,13 +596,16 @@ int32 CStream::FillBuffers()
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void CStream::ClearBuffers()
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{
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if ( !HasSource() ) return;
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ALint buffersQueued;
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alGetSourcei(m_alSource, AL_BUFFERS_QUEUED, &buffersQueued);
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ALint buffersQueued[2];
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alGetSourcei(m_pAlSources[0], AL_BUFFERS_QUEUED, &buffersQueued[0]);
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alGetSourcei(m_pAlSources[1], AL_BUFFERS_QUEUED, &buffersQueued[1]);
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ALuint value;
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while (buffersQueued--)
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alSourceUnqueueBuffers(m_alSource, 1, &value);
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while (buffersQueued[0]--)
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alSourceUnqueueBuffers(m_pAlSources[0], 1, &value);
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while (buffersQueued[1]--)
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alSourceUnqueueBuffers(m_pAlSources[1], 1, &value);
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}
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bool CStream::Setup()
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@ -522,7 +613,6 @@ bool CStream::Setup()
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if ( IsOpened() )
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{
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m_pSoundFile->Seek(0);
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alSourcei(m_alSource, AL_SOURCE_RELATIVE, AL_TRUE);
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//SetPosition(0.0f, 0.0f, 0.0f);
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SetPitch(1.0f);
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//SetPan(m_nPan);
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@ -538,17 +628,29 @@ void CStream::SetPlay(bool state)
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if ( state )
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{
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ALint sourceState = AL_PLAYING;
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alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
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alGetSourcei(m_pAlSources[0], AL_SOURCE_STATE, &sourceState);
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if (sourceState != AL_PLAYING )
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alSourcePlay(m_alSource);
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alSourcePlay(m_pAlSources[0]);
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sourceState = AL_PLAYING;
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alGetSourcei(m_pAlSources[1], AL_SOURCE_STATE, &sourceState);
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if (sourceState != AL_PLAYING)
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alSourcePlay(m_pAlSources[1]);
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m_bActive = true;
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}
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else
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{
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ALint sourceState = AL_STOPPED;
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alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
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if (sourceState != AL_STOPPED )
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alSourceStop(m_alSource);
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alGetSourcei(m_pAlSources[0], AL_SOURCE_STATE, &sourceState);
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if (sourceState != AL_STOPPED)
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alSourceStop(m_pAlSources[0]);
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sourceState = AL_STOPPED;
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alGetSourcei(m_pAlSources[1], AL_SOURCE_STATE, &sourceState);
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if (sourceState != AL_STOPPED)
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alSourceStop(m_pAlSources[1]);
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m_bActive = false;
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}
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}
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@ -579,35 +681,48 @@ void CStream::Update()
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if ( !m_bPaused )
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{
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ALint sourceState;
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ALint buffersProcessed = 0;
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ALint sourceState[2];
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ALint buffersProcessed[2] = { 0, 0 };
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alGetSourcei(m_alSource, AL_SOURCE_STATE, &sourceState);
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alGetSourcei(m_alSource, AL_BUFFERS_PROCESSED, &buffersProcessed);
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// Relying a lot on left buffer states in here
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//alSourcef(m_pAlSources[0], AL_ROLLOFF_FACTOR, 0.0f);
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alGetSourcei(m_pAlSources[0], AL_SOURCE_STATE, &sourceState[0]);
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alGetSourcei(m_pAlSources[0], AL_BUFFERS_PROCESSED, &buffersProcessed[0]);
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//alSourcef(m_pAlSources[1], AL_ROLLOFF_FACTOR, 0.0f);
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alGetSourcei(m_pAlSources[1], AL_SOURCE_STATE, &sourceState[1]);
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alGetSourcei(m_pAlSources[1], AL_BUFFERS_PROCESSED, &buffersProcessed[1]);
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ALint looping = AL_FALSE;
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alGetSourcei(m_alSource, AL_LOOPING, &looping);
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alGetSourcei(m_pAlSources[0], AL_LOOPING, &looping);
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if ( looping == AL_TRUE )
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{
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TRACE("stream set looping");
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alSourcei(m_alSource, AL_LOOPING, AL_TRUE);
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alSourcei(m_pAlSources[0], AL_LOOPING, AL_TRUE);
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alSourcei(m_pAlSources[1], AL_LOOPING, AL_TRUE);
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}
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assert(buffersProcessed[0] == buffersProcessed[1]);
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while( buffersProcessed[0]-- )
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{
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ALuint buffer[2];
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alSourceUnqueueBuffers(m_pAlSources[0], 1, &buffer[0]);
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alSourceUnqueueBuffers(m_pAlSources[1], 1, &buffer[1]);
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if (m_bActive && FillBuffer(buffer))
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{
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alSourceQueueBuffers(m_pAlSources[0], 1, &buffer[0]);
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alSourceQueueBuffers(m_pAlSources[1], 1, &buffer[1]);
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}
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}
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while( buffersProcessed-- )
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if ( sourceState[0] != AL_PLAYING )
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{
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ALuint buffer;
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alSourceUnqueueBuffers(m_alSource, 1, &buffer);
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if ( m_bActive && FillBuffer(buffer) )
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alSourceQueueBuffers(m_alSource, 1, &buffer);
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}
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if ( sourceState != AL_PLAYING )
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{
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alGetSourcei(m_alSource, AL_BUFFERS_PROCESSED, &buffersProcessed);
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SetPlay(buffersProcessed!=0);
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alGetSourcei(m_pAlSources[0], AL_BUFFERS_PROCESSED, &buffersProcessed[0]);
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SetPlay(buffersProcessed[0]!=0);
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}
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}
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}
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@ -3,7 +3,7 @@
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#ifdef AUDIO_OAL
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#include <AL/al.h>
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#define NUM_STREAMBUFFERS 4
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#define NUM_STREAMBUFFERS 8
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class IDecoder
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{
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@ -57,7 +57,7 @@ public:
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class CStream
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{
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char m_aFilename[128];
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ALuint &m_alSource;
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ALuint *m_pAlSources;
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ALuint (&m_alBuffers)[NUM_STREAMBUFFERS];
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bool m_bPaused;
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@ -73,20 +73,20 @@ class CStream
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IDecoder *m_pSoundFile;
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bool HasSource();
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void SetPosition(float x, float y, float z);
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void SetPosition(int i, float x, float y, float z);
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void SetPitch(float pitch);
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void SetGain(float gain);
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void Pause();
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void SetPlay(bool state);
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bool FillBuffer(ALuint alBuffer);
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bool FillBuffer(ALuint *alBuffer);
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int32 FillBuffers();
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void ClearBuffers();
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public:
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static void Initialise();
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static void Terminate();
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|
||||
CStream(char *filename, ALuint &source, ALuint (&buffers)[NUM_STREAMBUFFERS]);
|
||||
CStream(char *filename, ALuint *sources, ALuint (&buffers)[NUM_STREAMBUFFERS]);
|
||||
~CStream();
|
||||
void Delete();
|
||||
|
||||
|
|
|
|||
|
|
@ -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)
|
||||
|
|
|
|||
Loading…
Reference in a new issue