furnace/src/engine/platform/c64.h

122 lines
3.6 KiB
C++

/**
* Furnace Tracker - multi-system chiptune tracker
* Copyright (C) 2021-2023 tildearrow and contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef _C64_H
#define _C64_H
#include "../dispatch.h"
#include "../fixedQueue.h"
#include "sound/c64/sid.h"
#include "sound/c64_fp/SID.h"
#include "sound/c64_d/dsid.h"
class DivPlatformC64: public DivDispatch {
struct Channel: public SharedChannel<signed char> {
int prevFreq, testWhen;
unsigned char sweep, wave, attack, decay, sustain, release;
short duty;
bool sweepChanged, filter;
bool resetMask, resetFilter, resetDuty, ring, sync, test;
Channel():
SharedChannel<signed char>(15),
prevFreq(65535),
testWhen(0),
sweep(0),
wave(0),
attack(0),
decay(0),
sustain(0),
release(0),
duty(0),
sweepChanged(false),
filter(false),
resetMask(false),
resetFilter(false),
resetDuty(false),
ring(false),
sync(false),
test(false) {}
};
Channel chan[3];
DivDispatchOscBuffer* oscBuf[3];
bool isMuted[3];
float fakeLow[3];
float fakeBand[3];
float fakeCutTable[2048];
struct QueuedWrite {
unsigned char addr;
unsigned char val;
QueuedWrite(): addr(0), val(0) {}
QueuedWrite(unsigned char a, unsigned char v): addr(a), val(v) {}
};
FixedQueue<QueuedWrite,128> writes;
unsigned char filtControl, filtRes, vol;
unsigned char writeOscBuf;
unsigned char sidCore;
int filtCut, resetTime;
bool keyPriority, sidIs6581, needInitTables;
unsigned char chanOrder[3];
unsigned char testAD, testSR;
SID* sid;
reSIDfp::SID* sid_fp;
struct SID_chip* sid_d;
unsigned char regPool[32];
friend void putDispatchChip(void*,int);
friend void putDispatchChan(void*,int,int);
inline short runFakeFilter(unsigned char ch, int in);
void acquire_classic(short* bufL, short* bufR, size_t start, size_t len);
void acquire_fp(short* bufL, short* bufR, size_t start, size_t len);
void updateFilter();
public:
void acquire(short** buf, size_t len);
int dispatch(DivCommand c);
void* getChanState(int chan);
DivDispatchOscBuffer* getOscBuffer(int chan);
unsigned char* getRegisterPool();
int getRegisterPoolSize();
void reset();
void forceIns();
void tick(bool sysTick=true);
void muteChannel(int ch, bool mute);
void setFlags(const DivConfig& flags);
void notifyInsChange(int ins);
bool getDCOffRequired();
bool getWantPreNote();
float getPostAmp();
DivMacroInt* getChanMacroInt(int ch);
void notifyInsDeletion(void* ins);
void poke(unsigned int addr, unsigned short val);
void poke(std::vector<DivRegWrite>& wlist);
const char** getRegisterSheet();
int init(DivEngine* parent, int channels, int sugRate, const DivConfig& flags);
void setChipModel(bool is6581);
void setCore(unsigned char which);
void quit();
~DivPlatformC64();
};
#endif