145 lines
4.1 KiB
C++
145 lines
4.1 KiB
C++
/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2025 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 _TX81Z_H
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#define _TX81Z_H
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#include "fmshared_OPM.h"
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#include "../../fixedQueue.h"
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#include "sound/ymfm/ymfm_opz.h"
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class DivTXInterface: public ymfm::ymfm_interface {
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};
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class DivPlatformTX81Z: public DivPlatformOPM {
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protected:
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const unsigned short chanOffs[8]={
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0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
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};
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struct Channel: public FMChannel {
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unsigned char chVolL, chVolR;
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struct {
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int baseNoteOverride;
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bool fixedArp;
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int arpOff;
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int pitch2;
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bool hasOpArp;
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bool hasOpPitch;
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} opsState[4];
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void handleArpFmOp(bool& freqChange, int offset=0, int o=0) {
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DivMacroInt::IntOp& m=this->std.op[o];
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if (m.ssg.had) {
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opsState[o].hasOpArp=true;
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if (m.ssg.val<0) {
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if (!(m.ssg.val&0x40000000)) {
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opsState[o].baseNoteOverride=(m.ssg.val|0x40000000)+offset;
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opsState[o].fixedArp=true;
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} else {
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opsState[o].arpOff=m.ssg.val;
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opsState[o].fixedArp=false;
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}
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} else {
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if (m.ssg.val&0x40000000) {
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opsState[o].baseNoteOverride=(m.ssg.val&(~0x40000000))+offset;
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opsState[o].fixedArp=true;
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} else {
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opsState[o].arpOff=m.ssg.val;
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opsState[o].fixedArp=false;
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}
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}
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freqChange=true;
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} else {
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opsState[o].hasOpArp=false;
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}
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}
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void handlePitchFmOp(bool& freqChange, int o) {
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DivMacroInt::IntOp& m=this->std.op[o];
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if (m.sus.had) {
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opsState[o].hasOpPitch=true;
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if (m.sus.mode) {
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opsState[o].pitch2+=m.sus.val;
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CLAMP_VAR(opsState[o].pitch2,-131071,131071);
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} else {
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opsState[o].pitch2=m.sus.val;
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}
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freqChange=true;
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} else {
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opsState[o].hasOpPitch=false;
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}
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}
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Channel():
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FMChannel(),
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chVolL(1),
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chVolR(1) {
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memset(opsState,0,sizeof(opsState));
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}
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};
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Channel chan[8];
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DivDispatchOscBuffer* oscBuf[8];
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int baseFreqOff;
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int pcmL, pcmR, pcmCycles;
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unsigned char amDepth, pmDepth, amDepth2, pmDepth2;
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ymfm::ym2414* fm_ymfm;
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ymfm::ym2414::output_data out_ymfm;
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DivTXInterface iface;
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bool extMode;
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bool isMuted[8];
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int octave(int freq);
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int toFreq(int freq);
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void commitState(int ch, DivInstrument* ins);
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friend void putDispatchChip(void*,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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unsigned short getPan(int chan);
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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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void notifyInsChange(int ins);
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void notifyInsDeletion(void* ins);
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void setFlags(const DivConfig& flags);
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int getOutputCount();
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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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int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
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void quit();
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~DivPlatformTX81Z();
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};
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#endif
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