From 84ba63db24bc640585a8229b85d2c5d7e2189028 Mon Sep 17 00:00:00 2001 From: tildearrow Date: Fri, 4 Mar 2022 18:18:43 -0500 Subject: [PATCH] add PC speaker system haha --- CMakeLists.txt | 1 + src/engine/dispatchContainer.cpp | 4 + src/engine/platform/pcspkr.cpp | 267 +++++++++++++++++++++++++++++++ src/engine/platform/pcspkr.h | 84 ++++++++++ src/gui/gui.cpp | 2 + 5 files changed, 358 insertions(+) create mode 100644 src/engine/platform/pcspkr.cpp create mode 100644 src/engine/platform/pcspkr.h diff --git a/CMakeLists.txt b/CMakeLists.txt index af3e3a7d1..8bcb8ce98 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -301,6 +301,7 @@ src/engine/platform/ay8930.cpp src/engine/platform/tia.cpp src/engine/platform/saa.cpp src/engine/platform/amiga.cpp +src/engine/platform/pcspkr.cpp src/engine/platform/segapcm.cpp src/engine/platform/qsound.cpp src/engine/platform/dummy.cpp diff --git a/src/engine/dispatchContainer.cpp b/src/engine/dispatchContainer.cpp index 8398ca3d0..0682bbd71 100644 --- a/src/engine/dispatchContainer.cpp +++ b/src/engine/dispatchContainer.cpp @@ -37,6 +37,7 @@ #include "platform/tia.h" #include "platform/saa.h" #include "platform/amiga.h" +#include "platform/pcspkr.h" #include "platform/segapcm.h" #include "platform/qsound.h" #include "platform/dummy.h" @@ -216,6 +217,9 @@ void DivDispatchContainer::init(DivSystem sys, DivEngine* eng, int chanCount, do ((DivPlatformSAA1099*)dispatch)->setCore((DivSAACores)saaCore); break; } + case DIV_SYSTEM_PCSPKR: + dispatch=new DivPlatformPCSpeaker; + break; case DIV_SYSTEM_LYNX: dispatch=new DivPlatformLynx; break; diff --git a/src/engine/platform/pcspkr.cpp b/src/engine/platform/pcspkr.cpp new file mode 100644 index 000000000..8a991387d --- /dev/null +++ b/src/engine/platform/pcspkr.cpp @@ -0,0 +1,267 @@ +/** + * Furnace Tracker - multi-system chiptune tracker + * Copyright (C) 2021-2022 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. + */ + +#include "pcspkr.h" +#include "../engine.h" +#include + +#define PCSPKR_DIVIDER 4 +#define CHIP_DIVIDER 1 + +const char* regCheatSheetPCSpeaker[]={ + "Period", "0", + NULL +}; + +const char** DivPlatformPCSpeaker::getRegisterSheet() { + return regCheatSheetPCSpeaker; +} + +const char* DivPlatformPCSpeaker::getEffectName(unsigned char effect) { + return NULL; +} + +void DivPlatformPCSpeaker::acquire(short* bufL, short* bufR, size_t start, size_t len) { + for (size_t i=start; i>1):((freq+1)>>1); + } + flip=!flip; + } + bufL[i]=(flip && !isMuted[0])?32767:0; + } else { + bufL[i]=0; + } + } +} + +void DivPlatformPCSpeaker::tick() { + for (int i=0; i<1; i++) { + chan[i].std.next(); + if (chan[i].std.hadVol) { + // ok, why are the volumes like that? + chan[i].outVol=chan[i].vol; + } + if (chan[i].std.hadArp) { + if (!chan[i].inPorta) { + if (chan[i].std.arpMode) { + chan[i].baseFreq=NOTE_PERIODIC(chan[i].std.arp); + } else { + chan[i].baseFreq=NOTE_PERIODIC(chan[i].note+chan[i].std.arp); + } + } + chan[i].freqChanged=true; + } else { + if (chan[i].std.arpMode && chan[i].std.finishedArp) { + chan[i].baseFreq=NOTE_PERIODIC(chan[i].note); + chan[i].freqChanged=true; + } + } + if (chan[i].freqChanged || chan[i].keyOn || chan[i].keyOff) { + chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,true)-1; + if (chan[i].freq<0) chan[i].freq=0; + if (chan[i].freq>65535) chan[i].freq=65535; + if (chan[i].keyOn) { + on=true; + } + if (chan[i].keyOff) { + on=false; + } + freq=chan[i].freq; + if (chan[i].keyOn) chan[i].keyOn=false; + if (chan[i].keyOff) chan[i].keyOff=false; + chan[i].freqChanged=false; + } + } +} + +int DivPlatformPCSpeaker::dispatch(DivCommand c) { + switch (c.cmd) { + case DIV_CMD_NOTE_ON: + if (c.value!=DIV_NOTE_NULL) { + chan[c.chan].baseFreq=NOTE_PERIODIC(c.value); + chan[c.chan].freqChanged=true; + chan[c.chan].note=c.value; + } + chan[c.chan].active=true; + chan[c.chan].keyOn=true; + chan[c.chan].std.init(parent->getIns(chan[c.chan].ins)); + break; + case DIV_CMD_NOTE_OFF: + chan[c.chan].active=false; + chan[c.chan].keyOff=true; + chan[c.chan].std.init(NULL); + break; + case DIV_CMD_NOTE_OFF_ENV: + case DIV_CMD_ENV_RELEASE: + chan[c.chan].std.release(); + break; + case DIV_CMD_INSTRUMENT: + if (chan[c.chan].ins!=c.value || c.value2==1) { + chan[c.chan].ins=c.value; + } + break; + case DIV_CMD_VOLUME: + if (chan[c.chan].vol!=c.value) { + chan[c.chan].vol=c.value; + if (!chan[c.chan].std.hasVol) { + chan[c.chan].outVol=c.value; + } + if (chan[c.chan].active) { + on=chan[c.chan].vol; + } + } + break; + case DIV_CMD_GET_VOLUME: + return chan[c.chan].vol; + break; + case DIV_CMD_PITCH: + chan[c.chan].pitch=c.value; + chan[c.chan].freqChanged=true; + break; + case DIV_CMD_NOTE_PORTA: { + int destFreq=NOTE_PERIODIC(c.value2); + bool return2=false; + if (destFreq>chan[c.chan].baseFreq) { + chan[c.chan].baseFreq+=c.value; + if (chan[c.chan].baseFreq>=destFreq) { + chan[c.chan].baseFreq=destFreq; + return2=true; + } + } else { + chan[c.chan].baseFreq-=c.value; + if (chan[c.chan].baseFreq<=destFreq) { + chan[c.chan].baseFreq=destFreq; + return2=true; + } + } + chan[c.chan].freqChanged=true; + if (return2) { + chan[c.chan].inPorta=false; + return 2; + } + break; + } + case DIV_CMD_LEGATO: + if (c.chan==3) break; + chan[c.chan].baseFreq=NOTE_PERIODIC(c.value+((chan[c.chan].std.willArp && !chan[c.chan].std.arpMode)?(chan[c.chan].std.arp):(0))); + chan[c.chan].freqChanged=true; + chan[c.chan].note=c.value; + break; + case DIV_CMD_PRE_PORTA: + if (chan[c.chan].active && c.value2) { + if (parent->song.resetMacroOnPorta) chan[c.chan].std.init(parent->getIns(chan[c.chan].ins)); + } + chan[c.chan].inPorta=c.value; + break; + case DIV_CMD_GET_VOLMAX: + return 1; + break; + case DIV_ALWAYS_SET_VOLUME: + return 1; + break; + default: + break; + } + return 1; +} + +void DivPlatformPCSpeaker::muteChannel(int ch, bool mute) { + isMuted[ch]=mute; +} + +void DivPlatformPCSpeaker::forceIns() { + for (int i=0; i<5; i++) { + chan[i].insChanged=true; + } +} + +void* DivPlatformPCSpeaker::getChanState(int ch) { + return &chan[ch]; +} + +unsigned char* DivPlatformPCSpeaker::getRegisterPool() { + return regPool; +} + +int DivPlatformPCSpeaker::getRegisterPoolSize() { + return 2; +} + +void DivPlatformPCSpeaker::reset() { + for (int i=0; i<1; i++) { + chan[i]=DivPlatformPCSpeaker::Channel(); + } + if (dumpWrites) { + addWrite(0xffffffff,0); + } + + on=false; + freq=0; + pos=0; + + memset(regPool,0,2); +} + +bool DivPlatformPCSpeaker::keyOffAffectsArp(int ch) { + return true; +} + +void DivPlatformPCSpeaker::setFlags(unsigned int flags) { + chipClock=COLOR_NTSC/3.0; + rate=chipClock/PCSPKR_DIVIDER; +} + +void DivPlatformPCSpeaker::notifyInsDeletion(void* ins) { + for (int i=0; i<1; i++) { + chan[i].std.notifyInsDeletion((DivInstrument*)ins); + } +} + +void DivPlatformPCSpeaker::poke(unsigned int addr, unsigned short val) { + // ??? +} + +void DivPlatformPCSpeaker::poke(std::vector& wlist) { + // ??? +} + +int DivPlatformPCSpeaker::init(DivEngine* p, int channels, int sugRate, unsigned int flags) { + parent=p; + dumpWrites=false; + skipRegisterWrites=false; + for (int i=0; i<1; i++) { + isMuted[i]=false; + } + setFlags(flags); + + reset(); + return 5; +} + +void DivPlatformPCSpeaker::quit() { +} + +DivPlatformPCSpeaker::~DivPlatformPCSpeaker() { +} diff --git a/src/engine/platform/pcspkr.h b/src/engine/platform/pcspkr.h new file mode 100644 index 000000000..90e19b8ca --- /dev/null +++ b/src/engine/platform/pcspkr.h @@ -0,0 +1,84 @@ +/** + * Furnace Tracker - multi-system chiptune tracker + * Copyright (C) 2021-2022 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 _PCSPKR_H +#define _PCSPKR_H + +#include "../dispatch.h" +#include "../macroInt.h" + +class DivPlatformPCSpeaker: public DivDispatch { + struct Channel { + int freq, baseFreq, pitch, note; + unsigned char ins, duty, sweep; + bool active, insChanged, freqChanged, sweepChanged, keyOn, keyOff, inPorta, furnaceDac; + signed char vol, outVol, wave; + DivMacroInt std; + Channel(): + freq(0), + baseFreq(0), + pitch(0), + note(0), + ins(-1), + duty(0), + sweep(8), + active(false), + insChanged(true), + freqChanged(false), + sweepChanged(false), + keyOn(false), + keyOff(false), + inPorta(false), + furnaceDac(false), + vol(15), + outVol(15), + wave(-1) {} + }; + Channel chan[1]; + bool isMuted[1]; + bool on, flip; + int pos; + unsigned short freq; + unsigned char regPool[2]; + + friend void putDispatchChan(void*,int,int); + + public: + void acquire(short* bufL, short* bufR, size_t start, size_t len); + int dispatch(DivCommand c); + void* getChanState(int chan); + unsigned char* getRegisterPool(); + int getRegisterPoolSize(); + void reset(); + void forceIns(); + void tick(); + void muteChannel(int ch, bool mute); + bool keyOffAffectsArp(int ch); + void setFlags(unsigned int flags); + void notifyInsDeletion(void* ins); + void poke(unsigned int addr, unsigned short val); + void poke(std::vector& wlist); + const char** getRegisterSheet(); + const char* getEffectName(unsigned char effect); + int init(DivEngine* parent, int channels, int sugRate, unsigned int flags); + void quit(); + ~DivPlatformPCSpeaker(); +}; + +#endif diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp index 58e95003f..7ee75fc4d 100644 --- a/src/gui/gui.cpp +++ b/src/gui/gui.cpp @@ -4589,6 +4589,7 @@ bool FurnaceGUI::loop() { sysAddOption(DIV_SYSTEM_YM2610B_EXT); sysAddOption(DIV_SYSTEM_AY8910); sysAddOption(DIV_SYSTEM_AMIGA); + sysAddOption(DIV_SYSTEM_PCSPKR); sysAddOption(DIV_SYSTEM_OPLL); sysAddOption(DIV_SYSTEM_OPLL_DRUMS); sysAddOption(DIV_SYSTEM_VRC7); @@ -4905,6 +4906,7 @@ bool FurnaceGUI::loop() { sysChangeOption(i,DIV_SYSTEM_YM2610B_EXT); sysChangeOption(i,DIV_SYSTEM_AY8910); sysChangeOption(i,DIV_SYSTEM_AMIGA); + sysChangeOption(i,DIV_SYSTEM_PCSPKR); sysChangeOption(i,DIV_SYSTEM_OPLL); sysChangeOption(i,DIV_SYSTEM_OPLL_DRUMS); sysChangeOption(i,DIV_SYSTEM_VRC7);