695 lines
15 KiB
C++
695 lines
15 KiB
C++
//========= Copyright Valve Corporation, All rights reserved. ============//
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//
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// Purpose:
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//
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// $NoKeywords: $
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//
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//=============================================================================//
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#pragma warning( disable: 4201 )
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#include <mmsystem.h>
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#pragma warning( default: 4201 )
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#include <stdio.h>
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#include <math.h>
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#include "snd_audio_source.h"
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#include "AudioWaveOutput.h"
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#include "ifaceposersound.h"
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#include "utlvector.h"
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#include "filesystem.h"
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#include "sentence.h"
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typedef struct channel_s
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{
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int leftvol;
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int rightvol;
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int rleftvol;
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int rrightvol;
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float pitch;
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} channel_t;
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#define WAVE_FORMAT_STEREO (WAVE_FORMAT_1S08|WAVE_FORMAT_1S16|WAVE_FORMAT_2S08|WAVE_FORMAT_2S16|WAVE_FORMAT_4S08|WAVE_FORMAT_4S16)
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#define WAVE_FORMATS_UNDERSTOOD (0xFFF)
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#define WAVE_FORMAT_11K (WAVE_FORMAT_1M08|WAVE_FORMAT_1M16)
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#define WAVE_FORMAT_22K (WAVE_FORMAT_2M08|WAVE_FORMAT_2M16)
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#define WAVE_FORMAT_44K (WAVE_FORMAT_4M08|WAVE_FORMAT_4M16)
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void CAudioDeviceSWMix::Mix8Mono( channel_t *pChannel, char *pData, int outputOffset, int inputOffset, int rateScaleFix, int outCount, int timecompress, bool forward )
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{
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int sampleIndex = 0;
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fixedint sampleFrac = inputOffset;
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int fixup = 0;
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int fixupstep = 1;
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if ( !forward )
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{
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fixup = outCount - 1;
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fixupstep = -1;
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}
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for ( int i = 0; i < outCount; i++, fixup += fixupstep )
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{
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int dest = max( outputOffset + fixup, 0 );
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m_paintbuffer[ dest ].left += pChannel->leftvol * pData[sampleIndex];
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m_paintbuffer[ dest ].right += pChannel->rightvol * pData[sampleIndex];
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sampleFrac += rateScaleFix;
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sampleIndex += FIX_INTPART(sampleFrac);
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sampleFrac = FIX_FRACPART(sampleFrac);
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}
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}
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void CAudioDeviceSWMix::Mix8Stereo( channel_t *pChannel, char *pData, int outputOffset, int inputOffset, int rateScaleFix, int outCount, int timecompress, bool forward )
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{
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int sampleIndex = 0;
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fixedint sampleFrac = inputOffset;
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int fixup = 0;
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int fixupstep = 1;
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if ( !forward )
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{
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fixup = outCount - 1;
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fixupstep = -1;
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}
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for ( int i = 0; i < outCount; i++, fixup += fixupstep )
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{
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int dest = max( outputOffset + fixup, 0 );
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m_paintbuffer[ dest ].left += pChannel->leftvol * pData[sampleIndex];
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m_paintbuffer[ dest ].right += pChannel->rightvol * pData[sampleIndex+1];
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sampleFrac += rateScaleFix;
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sampleIndex += FIX_INTPART(sampleFrac)<<1;
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sampleFrac = FIX_FRACPART(sampleFrac);
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}
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}
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void CAudioDeviceSWMix::Mix16Mono( channel_t *pChannel, short *pData, int outputOffset, int inputOffset, int rateScaleFix, int outCount, int timecompress, bool forward )
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{
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int sampleIndex = 0;
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fixedint sampleFrac = inputOffset;
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int fixup = 0;
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int fixupstep = 1;
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if ( !forward )
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{
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fixup = outCount - 1;
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fixupstep = -1;
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}
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for ( int i = 0; i < outCount; i++, fixup += fixupstep )
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{
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int dest = max( outputOffset + fixup, 0 );
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m_paintbuffer[ dest ].left += (pChannel->leftvol * pData[sampleIndex])>>8;
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m_paintbuffer[ dest ].right += (pChannel->rightvol * pData[sampleIndex])>>8;
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sampleFrac += rateScaleFix;
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sampleIndex += FIX_INTPART(sampleFrac);
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sampleFrac = FIX_FRACPART(sampleFrac);
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}
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}
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void CAudioDeviceSWMix::Mix16Stereo( channel_t *pChannel, short *pData, int outputOffset, int inputOffset, int rateScaleFix, int outCount, int timecompress, bool forward )
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{
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int sampleIndex = 0;
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fixedint sampleFrac = inputOffset;
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int fixup = 0;
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int fixupstep = 1;
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if ( !forward )
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{
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fixup = outCount - 1;
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fixupstep = -1;
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}
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for ( int i = 0; i < outCount; i++, fixup += fixupstep )
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{
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int dest = max( outputOffset + fixup, 0 );
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m_paintbuffer[ dest ].left += (pChannel->leftvol * pData[sampleIndex])>>8;
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m_paintbuffer[ dest ].right += (pChannel->rightvol * pData[sampleIndex+1])>>8;
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sampleFrac += rateScaleFix;
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sampleIndex += FIX_INTPART(sampleFrac)<<1;
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sampleFrac = FIX_FRACPART(sampleFrac);
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}
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}
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int CAudioDeviceSWMix::MaxSampleCount( void )
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{
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return PAINTBUFFER_SIZE;
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}
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void CAudioDeviceSWMix::MixBegin( void )
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{
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memset( m_paintbuffer, 0, sizeof(m_paintbuffer) );
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}
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void CAudioDeviceSWMix::TransferBufferStereo16( short *pOutput, int sampleCount )
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{
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for ( int i = 0; i < sampleCount; i++ )
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{
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if ( m_paintbuffer[i].left > 32767 )
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m_paintbuffer[i].left = 32767;
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else if ( m_paintbuffer[i].left < -32768 )
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m_paintbuffer[i].left = -32768;
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if ( m_paintbuffer[i].right > 32767 )
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m_paintbuffer[i].right = 32767;
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else if ( m_paintbuffer[i].right < -32768 )
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m_paintbuffer[i].right = -32768;
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*pOutput++ = (short)m_paintbuffer[i].left;
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*pOutput++ = (short)m_paintbuffer[i].right;
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}
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}
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CAudioWaveOutput::CAudioWaveOutput( void )
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{
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for ( int i = 0; i < OUTPUT_BUFFER_COUNT; i++ )
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{
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CAudioBuffer *buffer = &m_buffers[ i ];
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Assert( buffer );
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buffer->hdr = NULL;
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buffer->submitted = false;
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buffer->submit_sample_count = false;
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}
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ClearDevice();
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OpenDevice();
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m_mixTime = -1;
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m_sampleIndex = 0;
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memset( m_sourceList, 0, sizeof(m_sourceList) );
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m_nEstimatedSamplesAhead = (int)( ( float ) OUTPUT_SAMPLE_RATE / 10.0f );
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}
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void CAudioWaveOutput::RemoveMixerChannelReferences( CAudioMixer *mixer )
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{
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for ( int i = 0; i < OUTPUT_BUFFER_COUNT; i++ )
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{
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RemoveFromReferencedList( mixer, &m_buffers[ i ] );
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}
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}
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void CAudioWaveOutput::AddToReferencedList( CAudioMixer *mixer, CAudioBuffer *buffer )
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{
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// Already in list
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for ( int i = 0; i < buffer->m_Referenced.Size(); i++ )
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{
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if ( buffer->m_Referenced[ i ].mixer == mixer )
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{
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return;
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}
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}
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// Just remove it
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int idx = buffer->m_Referenced.AddToTail();
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CAudioMixerState *state = &buffer->m_Referenced[ idx ];
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state->mixer = mixer;
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state->submit_mixer_sample = mixer->GetSamplePosition();
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}
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void CAudioWaveOutput::RemoveFromReferencedList( CAudioMixer *mixer, CAudioBuffer *buffer )
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{
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for ( int i = 0; i < buffer->m_Referenced.Size(); i++ )
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{
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if ( buffer->m_Referenced[ i ].mixer == mixer )
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{
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buffer->m_Referenced.Remove( i );
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break;
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}
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}
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}
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bool CAudioWaveOutput::IsSoundInReferencedList( CAudioMixer *mixer, CAudioBuffer *buffer )
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{
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for ( int i = 0; i < buffer->m_Referenced.Size(); i++ )
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{
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if ( buffer->m_Referenced[ i ].mixer == mixer )
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{
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return true;
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}
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}
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return false;
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}
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bool CAudioWaveOutput::IsSourceReferencedByActiveBuffer( CAudioMixer *mixer )
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{
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if ( !ValidDevice() )
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return false;
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CAudioBuffer *buffer;
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for ( int i = 0; i < OUTPUT_BUFFER_COUNT; i++ )
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{
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buffer = &m_buffers[ i ];
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if ( !buffer->submitted )
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continue;
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if ( buffer->hdr->dwFlags & WHDR_DONE )
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continue;
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// See if it's referenced
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if ( IsSoundInReferencedList( mixer, buffer ) )
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return true;
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}
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return false;
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}
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CAudioWaveOutput::~CAudioWaveOutput( void )
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{
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if ( ValidDevice() )
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{
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waveOutReset( m_deviceHandle );
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for ( int i = 0; i < OUTPUT_BUFFER_COUNT; i++ )
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{
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if ( m_buffers[i].hdr )
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{
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waveOutUnprepareHeader( m_deviceHandle, m_buffers[i].hdr, sizeof(*m_buffers[i].hdr) );
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delete[] m_buffers[i].hdr->lpData;
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delete m_buffers[i].hdr;
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}
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m_buffers[i].hdr = NULL;
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m_buffers[i].submitted = false;
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m_buffers[i].submit_sample_count = 0;
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m_buffers[i].m_Referenced.Purge();
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}
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waveOutClose( m_deviceHandle );
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ClearDevice();
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}
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}
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CAudioBuffer *CAudioWaveOutput::GetEmptyBuffer( void )
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{
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CAudioBuffer *pOutput = NULL;
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if ( ValidDevice() )
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{
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for ( int i = 0; i < OUTPUT_BUFFER_COUNT; i++ )
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{
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if ( !(m_buffers[ i ].submitted ) ||
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m_buffers[i].hdr->dwFlags & WHDR_DONE )
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{
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pOutput = &m_buffers[i];
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pOutput->submitted = true;
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pOutput->m_Referenced.Purge();
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break;
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}
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}
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}
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return pOutput;
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}
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void CAudioWaveOutput::SilenceBuffer( short *pSamples, int sampleCount )
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{
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int i;
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for ( i = 0; i < sampleCount; i++ )
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{
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// left
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*pSamples++ = 0;
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// right
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*pSamples++ = 0;
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}
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}
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void CAudioWaveOutput::Flush( void )
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{
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waveOutReset( m_deviceHandle );
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}
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// mix a buffer up to time (time is absolute)
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void CAudioWaveOutput::Update( float time )
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{
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}
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int CAudioWaveOutput::GetNumberofSamplesAhead( void )
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{
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ComputeSampleAheadAmount();
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return m_nEstimatedSamplesAhead;
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}
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float CAudioWaveOutput::GetAmountofTimeAhead( void )
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{
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ComputeSampleAheadAmount();
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return ( (float)m_nEstimatedSamplesAhead / (float)OUTPUT_SAMPLE_RATE );
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}
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// Find the most recent submitted sample that isn't flagged as whdr_done
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void CAudioWaveOutput::ComputeSampleAheadAmount( void )
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{
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m_nEstimatedSamplesAhead = 0;
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int newest_sample_index = -1;
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int newest_sample_count = 0;
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CAudioBuffer *buffer;
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if ( ValidDevice() )
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{
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for ( int i = 0; i < OUTPUT_BUFFER_COUNT; i++ )
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{
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buffer = &m_buffers[ i ];
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if ( !buffer->submitted )
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continue;
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if ( buffer->hdr->dwFlags & WHDR_DONE )
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continue;
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if ( buffer->submit_sample_count > newest_sample_count )
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{
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newest_sample_index = i;
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newest_sample_count = buffer->submit_sample_count;
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}
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}
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}
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if ( newest_sample_index == -1 )
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return;
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buffer = &m_buffers[ newest_sample_index ];
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int currentPos = GetOutputPosition() ;
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m_nEstimatedSamplesAhead = currentPos - buffer->submit_sample_count;
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}
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int CAudioWaveOutput::FindSourceIndex( CAudioMixer *pSource )
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{
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for ( int i = 0; i < MAX_CHANNELS; i++ )
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{
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if ( pSource == m_sourceList[i] )
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{
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return i;
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}
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}
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return -1;
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}
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CAudioMixer *CAudioWaveOutput::GetMixerForSource( CAudioSource *source )
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{
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for ( int i = 0; i < MAX_CHANNELS; i++ )
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{
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if ( !m_sourceList[i] )
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continue;
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if ( source == m_sourceList[i]->GetSource() )
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{
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return m_sourceList[i];
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}
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}
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return NULL;
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}
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void CAudioWaveOutput::AddSource( CAudioMixer *pSource )
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{
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int slot = 0;
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for ( int i = 0; i < MAX_CHANNELS; i++ )
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{
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if ( !m_sourceList[i] )
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{
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slot = i;
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break;
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}
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}
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if ( m_sourceList[slot] )
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{
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FreeChannel( slot );
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}
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SetChannel( slot, pSource );
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pSource->SetActive( true );
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}
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void CAudioWaveOutput::StopSounds( void )
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{
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for ( int i = 0; i < MAX_CHANNELS; i++ )
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{
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if ( m_sourceList[i] )
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{
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FreeChannel( i );
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}
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}
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}
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void CAudioWaveOutput::SetChannel( int channelIndex, CAudioMixer *pSource )
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{
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if ( channelIndex < 0 || channelIndex >= MAX_CHANNELS )
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return;
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m_sourceList[channelIndex] = pSource;
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}
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void CAudioWaveOutput::FreeChannel( int channelIndex )
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{
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if ( channelIndex < 0 || channelIndex >= MAX_CHANNELS )
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return;
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if ( m_sourceList[channelIndex] )
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{
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RemoveMixerChannelReferences( m_sourceList[channelIndex] );
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delete m_sourceList[channelIndex];
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m_sourceList[channelIndex] = NULL;
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}
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}
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int CAudioWaveOutput::GetOutputPosition( void )
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{
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if ( !m_deviceHandle )
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return 0;
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MMTIME mmtime;
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mmtime.wType = TIME_SAMPLES;
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waveOutGetPosition( m_deviceHandle, &mmtime, sizeof( MMTIME ) );
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// Convert time to sample count
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return ( mmtime.u.sample );
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}
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void CAudioWaveOutput::OpenDevice( void )
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{
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WAVEFORMATEX waveFormat;
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memset( &waveFormat, 0, sizeof(waveFormat) );
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// Select a PCM, 16-bit stereo playback device
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waveFormat.cbSize = sizeof(waveFormat);
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waveFormat.nAvgBytesPerSec = OUTPUT_SAMPLE_RATE * 2 * 2;
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waveFormat.nBlockAlign = 2 * 2; // channels * sample size
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waveFormat.nChannels = 2; // stereo
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waveFormat.nSamplesPerSec = OUTPUT_SAMPLE_RATE;
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waveFormat.wBitsPerSample = 16;
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waveFormat.wFormatTag = WAVE_FORMAT_PCM;
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MMRESULT errorCode = waveOutOpen( &m_deviceHandle, WAVE_MAPPER, &waveFormat, 0, 0, CALLBACK_NULL );
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if ( errorCode == MMSYSERR_NOERROR )
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{
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int bufferSize = 4 * ( OUTPUT_SAMPLE_RATE / OUTPUT_BUFFER_COUNT ); // total of 1 second of data
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// Got one!
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for ( int i = 0; i < OUTPUT_BUFFER_COUNT; i++ )
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{
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m_buffers[i].hdr = new WAVEHDR;
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m_buffers[i].hdr->lpData = new char[ bufferSize ];
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long align = (long)m_buffers[i].hdr->lpData;
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if ( align & 3 )
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{
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m_buffers[i].hdr->lpData = (char *) ( (align+3) &~3 );
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}
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m_buffers[i].hdr->dwBufferLength = bufferSize - (align&3);
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m_buffers[i].hdr->dwFlags = 0;
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if ( waveOutPrepareHeader( m_deviceHandle, m_buffers[i].hdr, sizeof(*m_buffers[i].hdr) ) != MMSYSERR_NOERROR )
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{
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ClearDevice();
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return;
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}
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}
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}
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else
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{
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ClearDevice();
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}
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}
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// factory to create a suitable audio output for this system
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CAudioOutput *CAudioOutput::Create( void )
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{
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// sound device is a singleton for now
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static CAudioOutput *pWaveOut = NULL;
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if ( !pWaveOut )
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{
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pWaveOut = new CAudioWaveOutput;
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}
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return pWaveOut;
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}
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struct CSoundFile
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{
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char filename[ 512 ];
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CAudioSource *source;
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long filetime;
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};
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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class CFacePoserSound : public IFacePoserSound
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{
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public:
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CFacePoserSound();
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~CFacePoserSound( void );
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void Init( void );
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void Shutdown( void );
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void Update( float dt );
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void Flush( void );
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CAudioSource *LoadSound( const char *wavfile );
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void PlaySound( StudioModel *source, float volume, const char *wavfile, CAudioMixer **ppMixer );
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void PlaySound( CAudioSource *source, float volume, CAudioMixer **ppMixer );
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void PlayPartialSound( StudioModel *model, float volume, const char *wavfile, CAudioMixer **ppMixer, int startSample, int endSample );
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bool IsSoundPlaying( CAudioMixer *pMixer );
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CAudioMixer *FindMixer( CAudioSource *source );
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void StopAll( void );
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void StopSound( CAudioMixer *mixer );
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void RenderWavToDC( HDC dc, RECT& outrect, COLORREF clr, float starttime, float endtime,
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CAudioSource *pWave, bool selected = false, int selectionstart = 0, int selectionend = 0 );
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// void InstallPhonemecallback( IPhonemeTag *pTagInterface );
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float GetAmountofTimeAhead( void );
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int GetNumberofSamplesAhead( void );
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CAudioOuput *GetAudioOutput( void );
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virtual void EnsureNoModelReferences( CAudioSource *source );
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private:
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CAudioOutput *m_pAudio;
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};
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static CFacePoserSound g_FacePoserSound;
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IFacePoserSound *sound = ( IFacePoserSound * )&g_FacePoserSound;
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CFacePoserSound::CFacePoserSound() :
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m_pAudio( 0 )
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{
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}
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CFacePoserSound::~CFacePoserSound( void )
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{
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}
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//-----------------------------------------------------------------------------
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// Purpose:
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//-----------------------------------------------------------------------------
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CAudioOuput *CFacePoserSound::GetAudioOutput( void )
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{
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return (CAudioOuput *)m_pAudio;
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}
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void CFacePoserSound::Init( void )
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{
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m_pAudio = CAudioOutput::Create();
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}
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void CFacePoserSound::Shutdown( void )
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{
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delete m_pAudio;
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}
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float CFacePoserSound::GetAmountofTimeAhead( void )
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{
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return 0.0f;
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}
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int CFacePoserSound::GetNumberofSamplesAhead( void )
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{
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return 0;
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}
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CAudioSource *CFacePoserSound::LoadSound( const char *wavfile )
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{
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if ( !m_pAudio )
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return NULL;
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CAudioSource *wave = AudioSource_Create( wavfile );
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return wave;
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}
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void CFacePoserSound::PlaySound( StudioModel *model, float volume, const char *wavfile, CAudioMixer **ppMixer )
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{
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}
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void CFacePoserSound::PlayPartialSound( StudioModel *model, float volume, const char *wavfile, CAudioMixer **ppMixer, int startSample, int endSample )
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{
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}
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void CFacePoserSound::PlaySound( CAudioSource *source, float volume, CAudioMixer **ppMixer )
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{
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}
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void CFacePoserSound::Update( float dt )
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{
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}
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void CFacePoserSound::Flush( void )
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{
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}
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void CFacePoserSound::StopAll( void )
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{
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}
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void CFacePoserSound::StopSound( CAudioMixer *mixer )
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{
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}
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void CFacePoserSound::RenderWavToDC( HDC dc, RECT& outrect, COLORREF clr,
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float starttime, float endtime, CAudioSource *pWave,
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bool selected /*= false*/, int selectionstart /*= 0*/, int selectionend /*= 0*/ )
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{
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}
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bool CFacePoserSound::IsSoundPlaying( CAudioMixer *pMixer )
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{
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return false;
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}
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CAudioMixer *CFacePoserSound::FindMixer( CAudioSource *source )
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{
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return NULL;
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}
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void CFacePoserSound::EnsureNoModelReferences( CAudioSource *source )
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{
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} |