134 lines
3.9 KiB
C++
134 lines
3.9 KiB
C++
/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2023 tildearrow and contributors
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*
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* 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
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef _SNES_H
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#define _SNES_H
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#include "../dispatch.h"
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#include "../waveSynth.h"
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#include "../fixedQueue.h"
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#include "sound/snes/SPC_DSP.h"
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class DivPlatformSNES: public DivDispatch {
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struct Channel: public SharedChannel<int> {
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unsigned int audPos;
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int sample, wave;
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int panL, panR;
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bool useWave, setPos, noise, echo, pitchMod, invertL, invertR, shallWriteVol, shallWriteEnv;
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int wtLen;
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DivInstrumentSNES state;
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DivWaveSynth ws;
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Channel():
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SharedChannel<int>(127),
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audPos(0),
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sample(-1),
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wave(-1),
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panL(127),
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panR(127),
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useWave(false),
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setPos(false),
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noise(false),
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echo(false),
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pitchMod(false),
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invertL(false),
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invertR(false),
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shallWriteVol(false),
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shallWriteEnv(false),
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wtLen(16) {}
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};
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Channel chan[8];
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DivDispatchOscBuffer* oscBuf[8];
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bool isMuted[8];
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int globalVolL, globalVolR;
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unsigned char noiseFreq;
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signed char delay;
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signed char echoVolL, echoVolR, echoFeedback;
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signed char dryVolL, dryVolR;
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signed char echoFIR[8];
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unsigned char echoDelay;
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size_t sampleTableBase;
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bool writeControl;
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bool writeNoise;
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bool writePitchMod;
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bool writeEcho;
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bool writeDryVol;
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bool echoOn;
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bool initEchoOn;
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signed char initEchoVolL;
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signed char initEchoVolR;
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signed char initEchoFeedback;
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signed char initEchoFIR[8];
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unsigned char initEchoDelay;
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unsigned char initEchoMask;
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struct QueuedWrite {
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unsigned char addr;
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unsigned char val;
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QueuedWrite(): addr(0), val(0) {}
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QueuedWrite(unsigned char a, unsigned char v): addr(a), val(v) {}
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};
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FixedQueue<QueuedWrite,256> writes;
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signed char sampleMem[65536];
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signed char copyOfSampleMem[65536];
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size_t sampleMemLen;
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unsigned int sampleOff[256];
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bool sampleLoaded[256];
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unsigned char regPool[0x80];
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SPC_DSP dsp;
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friend void putDispatchChan(void*,int,int);
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public:
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void acquire(short** buf, size_t len);
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int dispatch(DivCommand c);
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void* getChanState(int chan);
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DivMacroInt* getChanMacroInt(int ch);
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DivSamplePos getSamplePos(int ch);
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DivDispatchOscBuffer* getOscBuffer(int chan);
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unsigned char* getRegisterPool();
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int getRegisterPoolSize();
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void reset();
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void forceIns();
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void tick(bool sysTick=true);
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void muteChannel(int ch, bool mute);
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int getOutputCount();
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void notifyInsChange(int ins);
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void notifyWaveChange(int wave);
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void setFlags(const DivConfig& flags);
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void notifyInsDeletion(void* ins);
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void poke(unsigned int addr, unsigned short val);
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void poke(std::vector<DivRegWrite>& wlist);
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const char** getRegisterSheet();
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const void* getSampleMem(int index = 0);
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size_t getSampleMemCapacity(int index = 0);
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size_t getSampleMemUsage(int index = 0);
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bool isSampleLoaded(int index, int sample);
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void renderSamples(int chipID);
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int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
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void quit();
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private:
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void updateWave(int ch);
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void writeOutVol(int ch);
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void writeEnv(int ch);
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void initEcho();
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};
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#endif
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