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* LinuxSampler - modular, streaming capable sampler * |
* LinuxSampler - modular, streaming capable sampler * |
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* * |
* * |
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* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
* Copyright (C) 2003, 2004 by Benno Senoner and Christian Schoenebeck * |
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* Copyright (C) 2005 Christian Schoenebeck * |
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* * |
* * |
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* This program is free software; you can redistribute it and/or modify * |
* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
* it under the terms of the GNU General Public License as published by * |
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#ifndef __LS_GIG_SYNTHESIZER_H__ |
#ifndef __LS_GIG_SYNTHESIZER_H__ |
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#define __LS_GIG_SYNTHESIZER_H__ |
#define __LS_GIG_SYNTHESIZER_H__ |
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#include "../../common/global.h" |
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#include "../../common/RTMath.h" |
#include "../../common/RTMath.h" |
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#include "../common/Resampler.h" |
#include "../common/Resampler.h" |
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#include "../common/BiquadFilter.h" |
#include "../common/BiquadFilter.h" |
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#include "Filter.h" |
#include "Filter.h" |
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#include "Voice.h" |
#include "Voice.h" |
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#define SYNTHESIS_MODE_SET_CONSTPITCH(iMode,bVal) if (bVal) iMode |= 0x01; else iMode &= 0xfe /* (un)set mode bit 0 */ |
#define SYNTHESIS_MODE_SET_CONSTPITCH(iMode,bVal) if (bVal) iMode |= 0x01; else iMode &= ~0x01 /* (un)set mode bit 0 */ |
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#define SYNTHESIS_MODE_SET_LOOP(iMode,bVal) if (bVal) iMode |= 0x02; else iMode &= 0xfd /* (un)set mode bit 1 */ |
#define SYNTHESIS_MODE_SET_LOOP(iMode,bVal) if (bVal) iMode |= 0x02; else iMode &= ~0x02 /* (un)set mode bit 1 */ |
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#define SYNTHESIS_MODE_SET_INTERPOLATE(iMode,bVal) if (bVal) iMode |= 0x04; else iMode &= 0xfb /* (un)set mode bit 2 */ |
#define SYNTHESIS_MODE_SET_INTERPOLATE(iMode,bVal) if (bVal) iMode |= 0x04; else iMode &= ~0x04 /* (un)set mode bit 2 */ |
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#define SYNTHESIS_MODE_SET_FILTER(iMode,bVal) if (bVal) iMode |= 0x08; else iMode &= 0xf7 /* (un)set mode bit 3 */ |
#define SYNTHESIS_MODE_SET_FILTER(iMode,bVal) if (bVal) iMode |= 0x08; else iMode &= ~0x08 /* (un)set mode bit 3 */ |
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#define SYNTHESIS_MODE_SET_CHANNELS(iMode,bVal) if (bVal) iMode |= 0x10; else iMode &= 0xef /* (un)set mode bit 4 */ |
#define SYNTHESIS_MODE_SET_CHANNELS(iMode,bVal) if (bVal) iMode |= 0x10; else iMode &= ~0x10 /* (un)set mode bit 4 */ |
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#define SYNTHESIS_MODE_SET_IMPLEMENTATION(iMode,bVal) if (bVal) iMode |= 0x20; else iMode &= 0xdf /* (un)set mode bit 5 */ |
#define SYNTHESIS_MODE_SET_IMPLEMENTATION(iMode,bVal) if (bVal) iMode |= 0x20; else iMode &= ~0x20 /* (un)set mode bit 5 */ |
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#define SYNTHESIS_MODE_SET_PROFILING(iMode,bVal) if (bVal) iMode |= 0x40; else iMode &= ~0x40 /* (un)set mode bit 6 */ |
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#define SYNTHESIS_MODE_GET_CONSTPITCH(iMode) iMode & 0x01 |
#define SYNTHESIS_MODE_GET_CONSTPITCH(iMode) iMode & 0x01 |
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#define SYNTHESIS_MODE_GET_LOOP(iMode) iMode & 0x02 |
#define SYNTHESIS_MODE_GET_LOOP(iMode) iMode & 0x02 |
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namespace LinuxSampler { namespace gig { |
namespace LinuxSampler { namespace gig { |
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typedef void SynthesizeFragment_Fn(VOICE&, uint, sample_t*, int); |
typedef void SynthesizeFragment_Fn(VOICE&, uint, sample_t*, uint); |
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void* GetSynthesisFunction(const int SynthesisMode); |
void* GetSynthesisFunction(const int SynthesisMode); |
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void RunSynthesisFunction(const int SynthesisMode, VOICE& voice, uint Samples, sample_t* pSrc, uint Skip); |
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enum channels_t { |
enum channels_t { |
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MONO, |
MONO, |
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template<implementation_t IMPLEMENTATION, channels_t CHANNELS, bool USEFILTER, bool INTERPOLATE, bool DOLOOP, bool CONSTPITCH> |
template<implementation_t IMPLEMENTATION, channels_t CHANNELS, bool USEFILTER, bool INTERPOLATE, bool DOLOOP, bool CONSTPITCH> |
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class Synthesizer : public __RTMath<IMPLEMENTATION>, public LinuxSampler::Resampler<INTERPOLATE> { |
class Synthesizer : public __RTMath<IMPLEMENTATION>, public LinuxSampler::Resampler<INTERPOLATE> { |
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// declarations of derived functions (see "Name lookup, |
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// templates, and accessing members of base classes" in |
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// the gcc manual for an explanation of why this is |
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// needed). |
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using __RTMath<IMPLEMENTATION>::Mul; |
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using __RTMath<IMPLEMENTATION>::Float; |
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using LinuxSampler::Resampler<INTERPOLATE>::GetNextSampleMonoCPP; |
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using LinuxSampler::Resampler<INTERPOLATE>::GetNextSampleStereoCPP; |
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#if ARCH_X86 |
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using LinuxSampler::Resampler<INTERPOLATE>::GetNext4SamplesMonoMMXSSE; |
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using LinuxSampler::Resampler<INTERPOLATE>::GetNext4SamplesStereoMMXSSE; |
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#endif |
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public: |
public: |
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template<typename VOICE_T> |
template<typename VOICE_T> |
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inline static void SynthesizeFragment(VOICE_T& Voice, uint Samples, sample_t* pSrc, int& i) { |
inline static void SynthesizeFragment(VOICE_T& Voice, uint Samples, sample_t* pSrc, uint i) { |
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const float panLeft = Mul(Voice.PanLeft, Voice.pEngineChannel->GlobalPanLeft); |
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const float panRight = Mul(Voice.PanRight, Voice.pEngineChannel->GlobalPanRight); |
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if (IMPLEMENTATION == ASM_X86_MMX_SSE) { |
if (IMPLEMENTATION == ASM_X86_MMX_SSE) { |
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float fPos = (float) Voice.Pos; |
float fPos = (float) Voice.Pos; |
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SynthesizeFragment(Voice, Samples, pSrc, i, Voice.pSample->LoopPlayCount, |
SynthesizeFragment(Voice, Samples, pSrc, i, Voice.pSample->LoopPlayCount, |
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Voice.LoopCyclesLeft, |
Voice.LoopCyclesLeft, |
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(void *)&fPos, |
(void *)&fPos, |
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Voice.PitchBase, |
Voice.PitchBase, |
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Voice.PitchBend); |
Voice.PitchBend, |
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&panLeft, &panRight); |
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#if ARCH_X86 |
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if (INTERPOLATE) EMMS; |
if (INTERPOLATE) EMMS; |
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#endif |
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Voice.Pos = (double) fPos; |
Voice.Pos = (double) fPos; |
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} else { |
} else { |
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SynthesizeFragment(Voice, Samples, pSrc, i, Voice.pSample->LoopPlayCount, |
SynthesizeFragment(Voice, Samples, pSrc, i, Voice.pSample->LoopPlayCount, |
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Voice.LoopCyclesLeft, |
Voice.LoopCyclesLeft, |
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(void *)&Voice.Pos, |
(void *)&Voice.Pos, |
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Voice.PitchBase, |
Voice.PitchBase, |
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Voice.PitchBend); |
Voice.PitchBend, |
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&panLeft, &panRight); |
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} |
} |
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} |
} |
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//protected: |
//protected: |
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template<typename VOICE_T> |
template<typename VOICE_T> |
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inline static void SynthesizeFragment(VOICE_T& Voice, uint Samples, sample_t* pSrc, int& i, uint& LoopPlayCount, uint LoopStart, uint LoopEnd, uint LoopSize, uint& LoopCyclesLeft, void* Pos, float& PitchBase, float& PitchBend) { |
inline static void SynthesizeFragment(VOICE_T& Voice, uint Samples, sample_t* pSrc, uint& i, uint& LoopPlayCount, uint LoopStart, uint LoopEnd, uint LoopSize, uint& LoopCyclesLeft, void* Pos, float& PitchBase, float& PitchBend, const float* PanLeft, const float* PanRight) { |
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const float loopEnd = Float(LoopEnd); |
const float loopEnd = Float(LoopEnd); |
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const float PBbyPB = Mul(PitchBase, PitchBend); |
const float PBbyPB = Mul(PitchBase, PitchBend); |
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const float f_LoopStart = Float(LoopStart); |
const float f_LoopStart = Float(LoopStart); |
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// render loop (loop count limited) |
// render loop (loop count limited) |
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while (i < Samples && LoopCyclesLeft) { |
while (i < Samples && LoopCyclesLeft) { |
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if (CONSTPITCH) { |
if (CONSTPITCH) { |
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const int processEnd = Min(Samples, i + DiffToLoopEnd(loopEnd,Pos, PBbyPB) + 1); //TODO: instead of +1 we could also round up |
const uint processEnd = Min(Samples, i + DiffToLoopEnd(loopEnd,Pos, PBbyPB) + 1); //TODO: instead of +1 we could also round up |
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while (i < processEnd) Synthesize(Voice, Pos, pSrc, i); |
while (i < processEnd) Synthesize(Voice, Pos, pSrc, i, PanLeft, PanRight); |
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} |
} |
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else Synthesize(Voice, Pos, pSrc, i); |
else Synthesize(Voice, Pos, pSrc, i, PanLeft, PanRight); |
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if (WrapLoop(f_LoopStart, f_LoopSize, loopEnd, Pos)) LoopCyclesLeft--; |
if (WrapLoop(f_LoopStart, f_LoopSize, loopEnd, Pos)) LoopCyclesLeft--; |
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} |
} |
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// render on without loop |
// render on without loop |
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while (i < Samples) Synthesize(Voice, Pos, pSrc, i); |
while (i < Samples) Synthesize(Voice, Pos, pSrc, i, PanLeft, PanRight); |
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} |
} |
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else { // render loop (endless loop) |
else { // render loop (endless loop) |
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while (i < Samples) { |
while (i < Samples) { |
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if (CONSTPITCH) { |
if (CONSTPITCH) { |
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const int processEnd = Min(Samples, i + DiffToLoopEnd(loopEnd, Pos, PBbyPB) + 1); //TODO: instead of +1 we could also round up |
const uint processEnd = Min(Samples, i + DiffToLoopEnd(loopEnd, Pos, PBbyPB) + 1); //TODO: instead of +1 we could also round up |
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while (i < processEnd) Synthesize(Voice, Pos, pSrc, i); |
while (i < processEnd) Synthesize(Voice, Pos, pSrc, i, PanLeft, PanRight); |
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} |
} |
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else Synthesize(Voice, Pos, pSrc, i); |
else Synthesize(Voice, Pos, pSrc, i, PanLeft, PanRight); |
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WrapLoop(f_LoopStart, f_LoopSize, loopEnd, Pos); |
WrapLoop(f_LoopStart, f_LoopSize, loopEnd, Pos); |
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} |
} |
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} |
} |
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} |
} |
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else { // no looping |
else { // no looping |
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while (i < Samples) { Synthesize(Voice, Pos, pSrc, i);} |
while (i < Samples) { Synthesize(Voice, Pos, pSrc, i, PanLeft, PanRight);} |
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} |
} |
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} |
} |
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template<typename VOICE_T> |
template<typename VOICE_T> |
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inline static void Synthesize(VOICE_T& Voice, void* Pos, sample_t* pSrc, int& i) { |
inline static void Synthesize(VOICE_T& Voice, void* Pos, sample_t* pSrc, uint& i, const float* PanLeft, const float* PanRight) { |
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Synthesize(pSrc, Pos, |
Synthesize(pSrc, Pos, |
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Voice.pEngine->pSynthesisParameters[Event::destination_vco][i], |
Voice.pEngine->pSynthesisParameters[Event::destination_vco][i], |
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Voice.pEngine->pOutputLeft, |
Voice.pEngineChannel->pOutputLeft, |
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Voice.pEngine->pOutputRight, |
Voice.pEngineChannel->pOutputRight, |
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i, |
i, |
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Voice.pEngine->pSynthesisParameters[Event::destination_vca], |
Voice.pEngine->pSynthesisParameters[Event::destination_vca], |
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&Voice.PanLeft, |
PanLeft, |
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&Voice.PanRight, |
PanRight, |
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Voice.FilterLeft, |
Voice.FilterLeft, |
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Voice.FilterRight, |
Voice.FilterRight, |
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Voice.pEngine->pBasicFilterParameters[i], |
Voice.pEngine->pBasicFilterParameters[i], |
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switch (IMPLEMENTATION) { |
switch (IMPLEMENTATION) { |
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// pure C++ implementation (thus platform independent) |
// pure C++ implementation (thus platform independent) |
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case CPP: { |
case CPP: { |
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return int((LoopEnd - *((double *)Pos)) / Pitch); |
return uint((LoopEnd - *((double *)Pos)) / Pitch); |
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} |
} |
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#if ARCH_X86 |
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case ASM_X86_MMX_SSE: { |
case ASM_X86_MMX_SSE: { |
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int result; |
int result; |
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__asm__ __volatile__ ( |
__asm__ __volatile__ ( |
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); |
); |
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return result; |
return result; |
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} |
} |
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#endif // ARCH_X86 |
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} |
} |
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} |
} |
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*Pos = fmod(*Pos - LoopEnd, LoopSize) + LoopStart; |
*Pos = fmod(*Pos - LoopEnd, LoopSize) + LoopStart; |
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return 1; |
return 1; |
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} |
} |
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#if ARCH_X86 |
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case ASM_X86_MMX_SSE: { |
case ASM_X86_MMX_SSE: { |
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int result; |
int result = 0; |
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__asm__ __volatile__ ( |
__asm__ __volatile__ ( |
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"movss (%2), %%xmm0 # load LoopEnd\n\t" |
"movss (%2), %%xmm0 # load LoopEnd\n\t" |
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"movss (%1), %%xmm1 # load Pos\n\t" |
"movss (%1), %%xmm1 # load Pos\n\t" |
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"comiss %%xmm0, %%xmm1 # LoopEnd <> Pos\n\t" |
"comiss %%xmm0, %%xmm1 # LoopEnd <> Pos\n\t" |
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"movl $0,%%eax # result = 0\n\t" |
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"jb 1f # jump if no work needs to be done\n\t" |
"jb 1f # jump if no work needs to be done\n\t" |
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"movss (%3), %%xmm2 # load LoopSize\n\t" |
"movss (%3), %%xmm2 # load LoopSize\n\t" |
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"subss %%xmm0, %%xmm1 # Pos - LoopEnd\n\t" |
"subss %%xmm0, %%xmm1 # Pos - LoopEnd\n\t" |
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//done with fmodf |
//done with fmodf |
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"addss %%xmm0, %%xmm3 # add LoopStart\n\t" |
"addss %%xmm0, %%xmm3 # add LoopStart\n\t" |
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"movss %%xmm3, (%1) # update Pos\n\t" |
"movss %%xmm3, (%1) # update Pos\n\t" |
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"movl $1,%%eax # result = 1\n\t" |
"movl $1, (%0) # result = 1\n\t" |
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".balign 16 \n\t" |
".balign 16 \n\t" |
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"1:\n\t" |
"1:\n\t" |
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: "=a" (result) /* %0 */ |
:: "r" (&result), /* %0 */ |
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: "r" (vPos), /* %1 */ |
"r" (vPos), /* %1 */ |
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"r" (&LoopEnd), /* %2 */ |
"r" (&LoopEnd), /* %2 */ |
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"r" (&LoopSize), /* %3 */ |
"r" (&LoopSize), /* %3 */ |
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"r" (&LoopStart) /* %4 */ |
"r" (&LoopStart) /* %4 */ |
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); |
); |
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return result; |
return result; |
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} |
} |
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#endif // ARCH_X86 |
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} |
} |
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} |
} |
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inline static void Synthesize(sample_t* pSrc, void* Pos, float& Pitch, float* pOutL, float* pOutR, int& i, float* Volume, float* PanL, float* PanR, Filter& FilterL, Filter& FilterR, biquad_param_t& bqBase, biquad_param_t& bqMain) { |
inline static void Synthesize(sample_t* pSrc, void* Pos, float& Pitch, float* pOutL, float* pOutR, uint& i, float* Volume, const float* PanL, const float* PanR, Filter& FilterL, Filter& FilterR, biquad_param_t& bqBase, biquad_param_t& bqMain) { |
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switch (IMPLEMENTATION) { |
switch (IMPLEMENTATION) { |
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// pure C++ implementation (thus platform independent) |
// pure C++ implementation (thus platform independent) |
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case CPP: { |
case CPP: { |
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} |
} |
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break; |
break; |
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} |
} |
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#if ARCH_X86 |
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// Assembly optimization using the MMX & SSE(1) instruction set (thus only for x86) |
// Assembly optimization using the MMX & SSE(1) instruction set (thus only for x86) |
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case ASM_X86_MMX_SSE: { |
case ASM_X86_MMX_SSE: { |
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const int ii = i & 0xfffffffc; |
const int ii = i & 0xfffffffc; |
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"r" (&pOutR[ii]) /* %1 - must be 16 byte aligned ! */ |
"r" (&pOutR[ii]) /* %1 - must be 16 byte aligned ! */ |
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); |
); |
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} |
} |
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#endif // ARCH_X86 |
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} |
} |
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} |
} |
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}; |
}; |