diff options
26 files changed, 3618 insertions, 105 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt index 89194ed..2228353 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -61,7 +61,8 @@ option(WITH_OLD_UTILS "Build also old utilities" OFF) option(WITH_EMBEDDED_BANKS "Use embedded banks" ON) option(WITH_GENADLDATA "Build and run full rebuild of embedded banks cache" OFF) option(WITH_GENADLDATA_COMMENTS "Enable comments in generated ADLDATA cache file" OFF) -option(USE_DOSBOX_EMULATOR "Use DosBox emulator" OFF) +option(USE_DOSBOX_EMULATOR "Use DosBox 0.74 OPL3 emulator (semi-accurate, suggested for slow or mobile platforms)" ON) +option(USE_NUKED_EMULATOR "Use Nuked OPL3 emulator (most accurate, powerful)" ON) option(WITH_CPP_EXTRAS "Build with support for C++ extras (features are can be found in 'adlmidi.hpp' header)" OFF) option(WITH_MIDI_SEQUENCER "Build with embedded MIDI sequencer. Disable this if you want use library in real-time MIDI drivers or plugins.)" ON) option(WITH_MUS_SUPPORT "Build with support for DMX MUS files)" ON) @@ -162,15 +163,34 @@ else() endif() if(NOT DJGPP AND NOT MSDOS) + list(APPEND libADLMIDI_SOURCES + ${libADLMIDI_SOURCE_DIR}/src/chips/opl_chip_base.cpp + ) + if(USE_DOSBOX_EMULATOR) - add_definitions(-DADLMIDI_USE_DOSBOX_OPL) + set(HAS_EMULATOR TRUE) list(APPEND libADLMIDI_SOURCES - ${libADLMIDI_SOURCE_DIR}/src/dbopl.cpp + ${libADLMIDI_SOURCE_DIR}/src/chips/dosbox_opl3.cpp + ${libADLMIDI_SOURCE_DIR}/src/chips/dosbox/dbopl.cpp ) else() + add_definitions(-DADLMIDI_DISABLE_DOSBOX_EMULATOR) + endif() + + if(USE_NUKED_EMULATOR) + set(HAS_EMULATOR TRUE) list(APPEND libADLMIDI_SOURCES - ${libADLMIDI_SOURCE_DIR}/src/nukedopl3.c + ${libADLMIDI_SOURCE_DIR}/src/chips/nuked_opl3.cpp # v 1.8 + ${libADLMIDI_SOURCE_DIR}/src/chips/nuked/nukedopl3.c + ${libADLMIDI_SOURCE_DIR}/src/chips/nuked_opl3_v174.cpp # v 1.7.4 + ${libADLMIDI_SOURCE_DIR}/src/chips/nuked/nukedopl3_174.c ) + else() + add_definitions(-DADLMIDI_DISABLE_NUKED_EMULATOR) + endif() + + if(NOT HAS_EMULATOR) + message(FATAL_ERROR "No emulators enabled! You must enable at least one emulator!") endif() endif() @@ -434,6 +454,7 @@ message("WITH_EMBEDDED_BANKS = ${WITH_EMBEDDED_BANKS}") message("WITH_GENADLDATA = ${WITH_GENADLDATA}") message("WITH_GENADLDATA_COMMENTS = ${WITH_GENADLDATA_COMMENTS}") message("USE_DOSBOX_EMULATOR = ${USE_DOSBOX_EMULATOR}") +message("USE_NUKED_EMULATOR = ${USE_NUKED_EMULATOR}") message("WITH_MIDI_SEQUENCER = ${WITH_MIDI_SEQUENCER}") message("WITH_CPP_EXTRAS = ${WITH_CPP_EXTRAS}") message("WITH_MUS_SUPPORT = ${WITH_MUS_SUPPORT}") @@ -78,7 +78,8 @@ You need to make in the any IDE a library project and put into it next files * `ADLMIDI_DISABLE_XMI_SUPPORT` - Disables XMI to MIDI converter * `ADLMIDI_DISABLE_MUS_SUPPORT` - Disables MUS to MIDI converter * `ADLMIDI_DISABLE_MIDI_SEQUENCER` - Completely disables built-in MIDI sequencer. -* `ADLMIDI_USE_DOSBOX_OPL` - Enables DosBox 0.74 OPL3 emulator to be used. Nuked OPL3 is used by default if macro is not defined. +* `ADLMIDI_DISABLE_DOSBOX_EMULATOR` - Disables DosBox 0.74 OPL3 emulator. +* `ADLMIDI_DISABLE_NUKED_EMULATOR` - Disables Nuked OPL3 emulator. * `DISABLE_EMBEDDED_BANKS` - Disables usage of embedded banks. Use it to use custom-only banks. ### Public header (include) @@ -86,11 +87,10 @@ You need to make in the any IDE a library project and put into it next files * adlmidi.hpp - Public additional C++ API header, optional ### Internal code (src) +* chips/* - Various OPL3 chip emulators and commonized interface over them * adldata.hh - bank structures definition * adlmidi_private.hpp - header of internal private APIs -* dbopl.h - DOSBOX OPL Emulation header * fraction.hpp - Fraction number handling -* nukedopl3.h - Nuked OPL3 Emulation header * adldata.cpp - Automatically generated database of FM banks from "fm_banks" directory via "gen_adldata" tool. **Don't build it if you have defined `DISABLE_EMBEDDED_BANKS` macro!** * adlmidi.cpp - code of library @@ -98,8 +98,7 @@ You need to make in the any IDE a library project and put into it next files * adlmidi_midiplay.cpp - MIDI event sequencer * adlmidi_opl3.cpp - OPL3 chips manager * adlmidi_private.cpp - some internal functions sources -* dbopl.cpp - DOSBOX OPL Emulation code (used when `ADLMIDI_USE_DOSBOX_OPL` macro is defined) -* nukedopl3.c - Nuked OPL3 Emulation code (used by default, disabled when `ADLMIDI_USE_DOSBOX_OPL` macro is defined) + #### MUS2MIDI converter To remove MUS support, define `ADLMIDI_DISABLE_MUS_SUPPORT` macro and remove those files: @@ -138,6 +137,7 @@ To build that example you will need to have installed SDL2 library. * Added ability to disable MUS and XMI converters * Added ability to disable embedded MIDI sequencer to use library as RealTime synthesizer only or use any custom MIDI sequencer plugins. * Fixed blank instruments fallback in multi-bank support. When using non-zero bank, if instrument is blank, then, instrument will be taken from a root (I.e. zero bank). + * Added support for real-time switching the emulator ## 1.3.1 2017-12-16 * Added Real-Time MIDI API (MIDI event functions and adl_generate() to generate PCM between of event rows) which allows you to implement plugin for media players or even a real time MIDI playing driver. diff --git a/include/adlmidi.h b/include/adlmidi.h index 1c2613b..4dbd476 100644 --- a/include/adlmidi.h +++ b/include/adlmidi.h @@ -126,9 +126,24 @@ extern int adl_openBankFile(struct ADL_MIDIPlayer *device, const char *filePath) extern int adl_openBankData(struct ADL_MIDIPlayer *device, const void *mem, unsigned long size); -/*Returns name of currently used OPL3 emulator*/ +/* DEPRECATED */ extern const char *adl_emulatorName(); +/*Returns chip emulator name string*/ +extern const char *adl_chipEmulatorName(struct ADL_MIDIPlayer *device); + +enum ADL_Emulator +{ + ADLMIDI_EMU_NUKED = 0, + ADLMIDI_EMU_NUKED_8, + ADLMIDI_EMU_DOSBOX, + ADLMIDI_EMU_end +}; + +/* Switch the emulation core */ +extern int adl_switchEmulator(struct ADL_MIDIPlayer *device, int emulator); + + typedef struct { ADL_UInt16 major; ADL_UInt16 minor; diff --git a/libADLMIDI-test.pro b/libADLMIDI-test.pro index 7de3ee8..805474a 100644 --- a/libADLMIDI-test.pro +++ b/libADLMIDI-test.pro @@ -30,9 +30,14 @@ HEADERS += \ src/adlmidi_mus2mid.h \ src/adlmidi_private.hpp \ src/adlmidi_xmi2mid.h \ + src/chips/dosbox/dbopl.h \ + src/chips/dosbox_opl3.h \ + src/chips/nuked/nukedopl3_174.h \ + src/chips/nuked/nukedopl3.h \ + src/chips/nuked_opl3.h \ + src/chips/nuked_opl3_v174.h \ + src/chips/opl_chip_base.h \ src/fraction.hpp \ - src/nukedopl3.h \ - src/dbopl.h \ src/midiplay/wave_writer.h SOURCES += \ @@ -45,8 +50,13 @@ SOURCES += \ src/adlmidi_opl3.cpp \ src/adlmidi_private.cpp \ src/adlmidi_xmi2mid.c \ - src/nukedopl3.c \ - src/dbopl.cpp \ + src/chips/dosbox/dbopl.cpp \ + src/chips/dosbox_opl3.cpp \ + src/chips/nuked/nukedopl3_174.c \ + src/chips/nuked/nukedopl3.c \ + src/chips/nuked_opl3.cpp \ + src/chips/nuked_opl3_v174.cpp \ + src/chips/opl_chip_base.cpp \ utils/midiplay/adlmidiplay.cpp \ utils/midiplay/wave_writer.c diff --git a/src/adlmidi.cpp b/src/adlmidi.cpp index db97447..d26911d 100644 --- a/src/adlmidi.cpp +++ b/src/adlmidi.cpp @@ -312,11 +312,34 @@ ADLMIDI_EXPORT int adl_openData(ADL_MIDIPlayer *device, const void *mem, unsigne ADLMIDI_EXPORT const char *adl_emulatorName() { - #ifdef ADLMIDI_USE_DOSBOX_OPL - return "DosBox"; - #else - return "Nuked"; - #endif + return "<adl_emulatorName() is deprecated! Use adl_chipEmulatorName() instead!>"; +} + +ADLMIDI_EXPORT const char *adl_chipEmulatorName(struct ADL_MIDIPlayer *device) +{ + if(device) + { + MIDIplay *play = reinterpret_cast<MIDIplay *>(device->adl_midiPlayer); + if(play && !play->opl.cardsOP2.empty()) + return play->opl.cardsOP2[0]->emulatorName(); + } + return "Unknown"; +} + +ADLMIDI_EXPORT int adl_switchEmulator(struct ADL_MIDIPlayer *device, int emulator) +{ + if(device) + { + MIDIplay *play = reinterpret_cast<MIDIplay *>(device->adl_midiPlayer); + if(play && (emulator >= 0) && (emulator < ADLMIDI_EMU_end)) + { + play->m_setup.emulator = emulator; + adl_reset(device); + return 0; + } + play->setErrorString("OPN2 MIDI: Unknown emulation core!"); + } + return -1; } ADLMIDI_EXPORT const char *adl_linkedLibraryVersion() @@ -373,7 +396,7 @@ ADLMIDI_EXPORT void adl_reset(struct ADL_MIDIPlayer *device) return; MIDIplay *play = reinterpret_cast<MIDIplay *>(device->adl_midiPlayer); play->m_setup.tick_skip_samples_delay = 0; - play->opl.Reset(play->m_setup.PCM_RATE); + play->opl.Reset(play->m_setup.emulator, play->m_setup.PCM_RATE); play->ch.clear(); play->ch.resize(play->opl.NumChannels); } @@ -651,25 +674,13 @@ ADLMIDI_EXPORT int adl_play(ADL_MIDIPlayer *device, int sampleCount, short *out) unsigned int chips = player->opl.NumCards; if(chips == 1) { - #ifdef ADLMIDI_USE_DOSBOX_OPL - player->opl.cards[0].GenerateArr(out_buf, &in_generatedStereo); - in_generatedPhys = in_generatedStereo * 2; - #else - OPL3_GenerateStream(&player->opl.cards[0], out_buf, static_cast<Bit32u>(in_generatedStereo)); - #endif + player->opl.cardsOP2[0]->generate(out_buf, (size_t)in_generatedStereo); } else if(n_periodCountStereo > 0) { /* Generate data from every chip and mix result */ - for(unsigned card = 0; card < chips; ++card) - { - #ifdef ADLMIDI_USE_DOSBOX_OPL - player->opl.cards[card].GenerateArrMix(out_buf, &in_generatedStereo); - in_generatedPhys = in_generatedStereo * 2; - #else - OPL3_GenerateStreamMix(&player->opl.cards[card], out_buf, static_cast<Bit32u>(in_generatedStereo)); - #endif - } + for(size_t card = 0; card < chips; ++card) + player->opl.cardsOP2[card]->generateAndMix(out_buf, (size_t)in_generatedStereo); } /* Process it */ SendStereoAudio(sampleCount, in_generatedStereo, out_buf, gotten_len, out); @@ -743,26 +754,12 @@ ADLMIDI_EXPORT int adl_generate(struct ADL_MIDIPlayer *device, int sampleCount, std::memset(out_buf, 0, static_cast<size_t>(in_generatedPhys) * sizeof(int16_t)); unsigned int chips = player->opl.NumCards; if(chips == 1) - { - #ifdef ADLMIDI_USE_DOSBOX_OPL - player->opl.cards[0].GenerateArr(out_buf, &in_generatedStereo); - in_generatedPhys = in_generatedStereo * 2; - #else - OPL3_GenerateStream(&player->opl.cards[0], out_buf, static_cast<Bit32u>(in_generatedStereo)); - #endif - } + player->opl.cardsOP2[0]->generate(out_buf, (size_t)in_generatedStereo); else if(n_periodCountStereo > 0) { /* Generate data from every chip and mix result */ for(unsigned card = 0; card < chips; ++card) - { - #ifdef ADLMIDI_USE_DOSBOX_OPL - player->opl.cards[card].GenerateArrMix(out_buf, &in_generatedStereo); - in_generatedPhys = in_generatedStereo * 2; - #else - OPL3_GenerateStreamMix(&player->opl.cards[card], out_buf, static_cast<Bit32u>(in_generatedStereo)); - #endif - } + player->opl.cardsOP2[card]->generate(out_buf, (size_t)in_generatedStereo); } /* Process it */ SendStereoAudio(sampleCount, in_generatedStereo, out_buf, gotten_len, out); diff --git a/src/adlmidi_load.cpp b/src/adlmidi_load.cpp index bc1fd8d..77e6f69 100644 --- a/src/adlmidi_load.cpp +++ b/src/adlmidi_load.cpp @@ -761,14 +761,14 @@ riffskip: return false; } - //Build new MIDI events table (ALPHA!!!) + //Build new MIDI events table if(!buildTrackData()) { errorStringOut = fr._fileName + ": MIDI data parsing error has occouped!\n" + errorString; return false; } - opl.Reset(m_setup.PCM_RATE); // Reset AdLib + opl.Reset(m_setup.emulator, m_setup.PCM_RATE); // Reset OPL3 chip //opl.Reset(); // ...twice (just in case someone misprogrammed OPL3 previously) ch.clear(); ch.resize(opl.NumChannels); diff --git a/src/adlmidi_midiplay.cpp b/src/adlmidi_midiplay.cpp index 13e1008..7b15349 100644 --- a/src/adlmidi_midiplay.cpp +++ b/src/adlmidi_midiplay.cpp @@ -710,6 +710,8 @@ MIDIplay::MIDIplay(unsigned long sampleRate): { devices.clear(); + m_setup.emulator = ADLMIDI_EMU_NUKED; + m_setup.PCM_RATE = sampleRate; m_setup.mindelay = 1.0 / (double)m_setup.PCM_RATE; m_setup.maxdelay = 512.0 / (double)m_setup.PCM_RATE; @@ -752,7 +754,7 @@ void MIDIplay::applySetup() opl.NumFourOps = m_setup.NumFourOps; cmf_percussion_mode = false; - opl.Reset(m_setup.PCM_RATE); + opl.Reset(m_setup.emulator, m_setup.PCM_RATE); ch.clear(); ch.resize(opl.NumChannels); } diff --git a/src/adlmidi_opl3.cpp b/src/adlmidi_opl3.cpp index 7ac8f30..7fc7f4e 100644 --- a/src/adlmidi_opl3.cpp +++ b/src/adlmidi_opl3.cpp @@ -25,6 +25,21 @@ #ifdef ADLMIDI_HW_OPL static const unsigned OPLBase = 0x388; +#else +# if defined(ADLMIDI_DISABLE_NUKED_EMULATOR) && defined(ADLMIDI_DISABLE_DOSBOX_EMULATOR) +# error "No emulators enabled. You must enable at least one emulator to use this library!" +# endif + +// Nuked OPL3 emulator, Most accurate, but requires the powerful CPU +# ifndef ADLMIDI_DISABLE_NUKED_EMULATOR +# include "chips/nuked_opl3.h" +# include "chips/nuked_opl3_v174.h" +# endif + +// DosBox 0.74 OPL3 emulator, Well-accurate and fast +# ifndef ADLMIDI_DISABLE_DOSBOX_EMULATOR +# include "chips/dosbox_opl3.h" +# endif #endif #ifdef DISABLE_EMBEDDED_BANKS @@ -184,13 +199,7 @@ void OPL3::Poke(size_t card, uint32_t index, uint32_t value) #endif//__WATCOMC__ #else//ADLMIDI_HW_OPL - - #ifdef ADLMIDI_USE_DOSBOX_OPL - cards[card].WriteReg(index, static_cast<uint8_t>(value)); - #else - OPL3_WriteReg(&cards[card], static_cast<Bit16u>(index), static_cast<Bit8u>(value)); - #endif - + cardsOP2[card]->writeReg(static_cast<uint16_t>(index), static_cast<uint8_t>(value)); #endif//ADLMIDI_HW_OPL } @@ -216,11 +225,7 @@ void OPL3::PokeN(size_t card, uint16_t index, uint8_t value) #endif//__WATCOMC__ #else - #ifdef ADLMIDI_USE_DOSBOX_OPL - cards[card].WriteReg(static_cast<Bit32u>(index), value); - #else - OPL3_WriteReg(&cards[card], index, value); - #endif + cardsOP2[card]->writeReg(index, value); #endif } @@ -498,24 +503,27 @@ void OPL3::ChangeVolumeRangesModel(ADLMIDI_VolumeModels volumeModel) } } -void OPL3::Reset(unsigned long PCM_RATE) +void OPL3::ClearChips() +{ + for(size_t i = 0; i < cardsOP2.size(); i++) + cardsOP2[i].reset(NULL); + cardsOP2.clear(); +} + +void OPL3::Reset(int emulator, unsigned long PCM_RATE) { #ifndef ADLMIDI_HW_OPL - #ifdef ADLMIDI_USE_DOSBOX_OPL - DBOPL::Handler emptyChip; //Constructors inside are will initialize necessary fields - #else - _opl3_chip emptyChip; - std::memset(&emptyChip, 0, sizeof(_opl3_chip)); - #endif - cards.clear(); + ClearChips(); #endif (void)PCM_RATE; ins.clear(); pit.clear(); regBD.clear(); + #ifndef ADLMIDI_HW_OPL - cards.resize(NumCards, emptyChip); + cardsOP2.resize(NumCards, AdlMIDI_CPtr<OPLChipBase>()); #endif + NumChannels = NumCards * 23; ins.resize(NumChannels, 189); pit.resize(NumChannels, 0); @@ -536,24 +544,35 @@ void OPL3::Reset(unsigned long PCM_RATE) }; unsigned fours = NumFourOps; - for(unsigned card = 0; card < NumCards; ++card) + for(size_t i = 0; i < cardsOP2.size(); ++i) { - #ifndef ADLMIDI_HW_OPL - # ifdef ADLMIDI_USE_DOSBOX_OPL - cards[card].Init(PCM_RATE); - # else - OPL3_Reset(&cards[card], static_cast<Bit32u>(PCM_RATE)); - # endif - #endif - - for(unsigned a = 0; a < 18; ++a) Poke(card, 0xB0 + Channels[a], 0x00); + switch(emulator) + { + default: +#ifndef ADLMIDI_DISABLE_NUKED_EMULATOR + case ADLMIDI_EMU_NUKED: + cardsOP2[i].reset(new NukedOPL3v174()); + break; + case ADLMIDI_EMU_NUKED_8: + cardsOP2[i].reset(new NukedOPL3()); + break; +#endif +#ifndef ADLMIDI_DISABLE_DOSBOX_EMULATOR + case ADLMIDI_EMU_DOSBOX: + cardsOP2[i].reset(new DosBoxOPL3()); + break; +#endif + } + cardsOP2[i]->setRate((uint32_t)PCM_RATE); + + for(unsigned a = 0; a < 18; ++a) Poke(i, 0xB0 + Channels[a], 0x00); for(unsigned a = 0; a < sizeof(data) / sizeof(*data); a += 2) - PokeN(card, data[a], static_cast<uint8_t>(data[a + 1])); - Poke(card, 0x0BD, regBD[card] = (HighTremoloMode * 0x80 - + HighVibratoMode * 0x40 - + AdlPercussionMode * 0x20)); + PokeN(i, data[a], static_cast<uint8_t>(data[a + 1])); + Poke(i, 0x0BD, regBD[i] = (HighTremoloMode * 0x80 + + HighVibratoMode * 0x40 + + AdlPercussionMode * 0x20)); unsigned fours_this_card = std::min(fours, 6u); - Poke(card, 0x104, (1 << fours_this_card) - 1); + Poke(i, 0x104, (1 << fours_this_card) - 1); //fprintf(stderr, "Card %u: %u four-ops.\n", card, fours_this_card); fours -= fours_this_card; } diff --git a/src/adlmidi_private.hpp b/src/adlmidi_private.hpp index 8523343..82a6627 100644 --- a/src/adlmidi_private.hpp +++ b/src/adlmidi_private.hpp @@ -112,13 +112,8 @@ typedef int32_t ssize_t; #endif #include "fraction.hpp" - #ifndef ADLMIDI_HW_OPL -#ifdef ADLMIDI_USE_DOSBOX_OPL -#include "dbopl.h" -#else -#include "nukedopl3.h" -#endif +#include "chips/opl_chip_base.h" #endif #include "adldata.hh" @@ -178,11 +173,7 @@ public: char ____padding[4]; ADL_MIDIPlayer *_parent; #ifndef ADLMIDI_HW_OPL -# ifdef ADLMIDI_USE_DOSBOX_OPL - std::vector<DBOPL::Handler> cards; -# else - std::vector<_opl3_chip> cards; -# endif + std::vector<AdlMIDI_CPtr<OPLChipBase > > cardsOP2; #endif private: std::vector<size_t> ins; // index to adl[], cached, needed by Touch() @@ -268,7 +259,8 @@ public: void updateFlags(); void updateDeepFlags(); void ChangeVolumeRangesModel(ADLMIDI_VolumeModels volumeModel); - void Reset(unsigned long PCM_RATE); + void ClearChips(); + void Reset(int emulator, unsigned long PCM_RATE); }; @@ -712,6 +704,7 @@ public: struct Setup { + int emulator; unsigned int AdlBank; unsigned int NumFourOps; unsigned int NumCards; diff --git a/src/dbopl.cpp b/src/chips/dosbox/dbopl.cpp index fb28e20..8834524 100644 --- a/src/dbopl.cpp +++ b/src/chips/dosbox/dbopl.cpp @@ -1,4 +1,4 @@ -#ifdef ADLMIDI_USE_DOSBOX_OPL +//#ifdef ADLMIDI_USE_DOSBOX_OPL #ifdef __MINGW32__ typedef struct vswprintf {} swprintf; @@ -2042,4 +2042,4 @@ namespace DBOPL } //Namespace DBOPL -#endif //ADLMIDI_USE_DOSBOX_OPL +//#endif //ADLMIDI_USE_DOSBOX_OPL diff --git a/src/dbopl.h b/src/chips/dosbox/dbopl.h index b5b2ba1..b5b2ba1 100644 --- a/src/dbopl.h +++ b/src/chips/dosbox/dbopl.h diff --git a/src/chips/dosbox_opl3.cpp b/src/chips/dosbox_opl3.cpp new file mode 100644 index 0000000..b696343 --- /dev/null +++ b/src/chips/dosbox_opl3.cpp @@ -0,0 +1,84 @@ +#include "dosbox_opl3.h" +#include "dosbox/dbopl.h" +#include <cstdlib> +#include <assert.h> + +DosBoxOPL3::DosBoxOPL3() : + OPLChipBase(), + m_chip(nullptr) +{ + reset(); +} + +DosBoxOPL3::DosBoxOPL3(const DosBoxOPL3 &c) : + OPLChipBase(c), + m_chip(nullptr) +{ + setRate(c.m_rate); +} + +DosBoxOPL3::~DosBoxOPL3() +{ + DBOPL::Handler *chip_r = reinterpret_cast<DBOPL::Handler*>(m_chip); + delete chip_r; +} + +void DosBoxOPL3::setRate(uint32_t rate) +{ + OPLChipBase::setRate(rate); + reset(); +} + +void DosBoxOPL3::reset() +{ + DBOPL::Handler *chip_r = reinterpret_cast<DBOPL::Handler*>(m_chip); + if(m_chip && chip_r) + delete chip_r; + m_chip = new DBOPL::Handler; + chip_r = reinterpret_cast<DBOPL::Handler*>(m_chip); + chip_r->Init(m_rate); +} + +void DosBoxOPL3::reset(uint32_t rate) +{ + setRate(rate); +} + +void DosBoxOPL3::writeReg(uint16_t addr, uint8_t data) +{ + DBOPL::Handler *chip_r = reinterpret_cast<DBOPL::Handler*>(m_chip); + chip_r->WriteReg(static_cast<Bit32u>(addr), data); +} + +int DosBoxOPL3::generate(int16_t *output, size_t frames) +{ + DBOPL::Handler *chip_r = reinterpret_cast<DBOPL::Handler*>(m_chip); + ssize_t left = (ssize_t)frames; + while(left > 0) + { + ssize_t frames_i = left; + chip_r->GenerateArr(output, &frames_i); + output += (frames_i * 2); + left -= frames_i; + } + return (int)frames; +} + +int DosBoxOPL3::generateAndMix(int16_t *output, size_t frames) +{ + DBOPL::Handler *chip_r = reinterpret_cast<DBOPL::Handler*>(m_chip); + ssize_t left = (ssize_t)frames; + while(left > 0) + { + ssize_t frames_i = left; + chip_r->GenerateArrMix(output, &frames_i); + output += (frames_i * 2); + left -= frames_i; + } + return (int)frames; +} + +const char *DosBoxOPL3::emulatorName() +{ + return "DosBox 0.74 OPL3"; +} diff --git a/src/chips/dosbox_opl3.h b/src/chips/dosbox_opl3.h new file mode 100644 index 0000000..46c20fa --- /dev/null +++ b/src/chips/dosbox_opl3.h @@ -0,0 +1,23 @@ +#ifndef DOSBOX_OPL3_H +#define DOSBOX_OPL3_H + +#include "opl_chip_base.h" + +class DosBoxOPL3 final : public OPLChipBase +{ + void *m_chip; +public: + DosBoxOPL3(); + DosBoxOPL3(const DosBoxOPL3 &c); + virtual ~DosBoxOPL3() override; + + virtual void setRate(uint32_t rate) override; + virtual void reset() override; + virtual void reset(uint32_t rate) override; + virtual void writeReg(uint16_t addr, uint8_t data) override; + virtual int generate(int16_t *output, size_t frames) override; + virtual int generateAndMix(int16_t *output, size_t frames) override; + virtual const char *emulatorName() override; +}; + +#endif // DOSBOX_OPL3_H diff --git a/src/chips/nuked/nukedopl3.c b/src/chips/nuked/nukedopl3.c new file mode 100644 index 0000000..eadb6b9 --- /dev/null +++ b/src/chips/nuked/nukedopl3.c @@ -0,0 +1,1391 @@ +/* + * Copyright (C) 2013-2018 Alexey Khokholov (Nuke.YKT) + * + * 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. + * + * + * Nuked OPL3 emulator. + * Thanks: + * MAME Development Team(Jarek Burczynski, Tatsuyuki Satoh): + * Feedback and Rhythm part calculation information. + * forums.submarine.org.uk(carbon14, opl3): + * Tremolo and phase generator calculation information. + * OPLx decapsulated(Matthew Gambrell, Olli Niemitalo): + * OPL2 ROMs. + * siliconpr0n.org(John McMaster, digshadow): + * YMF262 and VRC VII decaps and die shots. + * + * version: 1.8 + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "nukedopl3.h" + +#define RSM_FRAC 10 + +/* Channel types */ + +enum { + ch_2op = 0, + ch_4op = 1, + ch_4op2 = 2, + ch_drum = 3 +}; + +/* Envelope key types */ + +enum { + egk_norm = 0x01, + egk_drum = 0x02 +}; + + +/* + * logsin table + */ + +static const Bit16u logsinrom[256] = { + 0x859, 0x6c3, 0x607, 0x58b, 0x52e, 0x4e4, 0x4a6, 0x471, + 0x443, 0x41a, 0x3f5, 0x3d3, 0x3b5, 0x398, 0x37e, 0x365, + 0x34e, 0x339, 0x324, 0x311, 0x2ff, 0x2ed, 0x2dc, 0x2cd, + 0x2bd, 0x2af, 0x2a0, 0x293, 0x286, 0x279, 0x26d, 0x261, + 0x256, 0x24b, 0x240, 0x236, 0x22c, 0x222, 0x218, 0x20f, + 0x206, 0x1fd, 0x1f5, 0x1ec, 0x1e4, 0x1dc, 0x1d4, 0x1cd, + 0x1c5, 0x1be, 0x1b7, 0x1b0, 0x1a9, 0x1a2, 0x19b, 0x195, + 0x18f, 0x188, 0x182, 0x17c, 0x177, 0x171, 0x16b, 0x166, + 0x160, 0x15b, 0x155, 0x150, 0x14b, 0x146, 0x141, 0x13c, + 0x137, 0x133, 0x12e, 0x129, 0x125, 0x121, 0x11c, 0x118, + 0x114, 0x10f, 0x10b, 0x107, 0x103, 0x0ff, 0x0fb, 0x0f8, + 0x0f4, 0x0f0, 0x0ec, 0x0e9, 0x0e5, 0x0e2, 0x0de, 0x0db, + 0x0d7, 0x0d4, 0x0d1, 0x0cd, 0x0ca, 0x0c7, 0x0c4, 0x0c1, + 0x0be, 0x0bb, 0x0b8, 0x0b5, 0x0b2, 0x0af, 0x0ac, 0x0a9, + 0x0a7, 0x0a4, 0x0a1, 0x09f, 0x09c, 0x099, 0x097, 0x094, + 0x092, 0x08f, 0x08d, 0x08a, 0x088, 0x086, 0x083, 0x081, + 0x07f, 0x07d, 0x07a, 0x078, 0x076, 0x074, 0x072, 0x070, + 0x06e, 0x06c, 0x06a, 0x068, 0x066, 0x064, 0x062, 0x060, + 0x05e, 0x05c, 0x05b, 0x059, 0x057, 0x055, 0x053, 0x052, + 0x050, 0x04e, 0x04d, 0x04b, 0x04a, 0x048, 0x046, 0x045, + 0x043, 0x042, 0x040, 0x03f, 0x03e, 0x03c, 0x03b, 0x039, + 0x038, 0x037, 0x035, 0x034, 0x033, 0x031, 0x030, 0x02f, + 0x02e, 0x02d, 0x02b, 0x02a, 0x029, 0x028, 0x027, 0x026, + 0x025, 0x024, 0x023, 0x022, 0x021, 0x020, 0x01f, 0x01e, + 0x01d, 0x01c, 0x01b, 0x01a, 0x019, 0x018, 0x017, 0x017, + 0x016, 0x015, 0x014, 0x014, 0x013, 0x012, 0x011, 0x011, + 0x010, 0x00f, 0x00f, 0x00e, 0x00d, 0x00d, 0x00c, 0x00c, + 0x00b, 0x00a, 0x00a, 0x009, 0x009, 0x008, 0x008, 0x007, + 0x007, 0x007, 0x006, 0x006, 0x005, 0x005, 0x005, 0x004, + 0x004, 0x004, 0x003, 0x003, 0x003, 0x002, 0x002, 0x002, + 0x002, 0x001, 0x001, 0x001, 0x001, 0x001, 0x001, 0x001, + 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000 +}; + +/* + * exp table + */ + +static const Bit16u exprom[256] = { + 0x7fa, 0x7f5, 0x7ef, 0x7ea, 0x7e4, 0x7df, 0x7da, 0x7d4, + 0x7cf, 0x7c9, 0x7c4, 0x7bf, 0x7b9, 0x7b4, 0x7ae, 0x7a9, + 0x7a4, 0x79f, 0x799, 0x794, 0x78f, 0x78a, 0x784, 0x77f, + 0x77a, 0x775, 0x770, 0x76a, 0x765, 0x760, 0x75b, 0x756, + 0x751, 0x74c, 0x747, 0x742, 0x73d, 0x738, 0x733, 0x72e, + 0x729, 0x724, 0x71f, 0x71a, 0x715, 0x710, 0x70b, 0x706, + 0x702, 0x6fd, 0x6f8, 0x6f3, 0x6ee, 0x6e9, 0x6e5, 0x6e0, + 0x6db, 0x6d6, 0x6d2, 0x6cd, 0x6c8, 0x6c4, 0x6bf, 0x6ba, + 0x6b5, 0x6b1, 0x6ac, 0x6a8, 0x6a3, 0x69e, 0x69a, 0x695, + 0x691, 0x68c, 0x688, 0x683, 0x67f, 0x67a, 0x676, 0x671, + 0x66d, 0x668, 0x664, 0x65f, 0x65b, 0x657, 0x652, 0x64e, + 0x649, 0x645, 0x641, 0x63c, 0x638, 0x634, 0x630, 0x62b, + 0x627, 0x623, 0x61e, 0x61a, 0x616, 0x612, 0x60e, 0x609, + 0x605, 0x601, 0x5fd, 0x5f9, 0x5f5, 0x5f0, 0x5ec, 0x5e8, + 0x5e4, 0x5e0, 0x5dc, 0x5d8, 0x5d4, 0x5d0, 0x5cc, 0x5c8, + 0x5c4, 0x5c0, 0x5bc, 0x5b8, 0x5b4, 0x5b0, 0x5ac, 0x5a8, + 0x5a4, 0x5a0, 0x59c, 0x599, 0x595, 0x591, 0x58d, 0x589, + 0x585, 0x581, 0x57e, 0x57a, 0x576, 0x572, 0x56f, 0x56b, + 0x567, 0x563, 0x560, 0x55c, 0x558, 0x554, 0x551, 0x54d, + 0x549, 0x546, 0x542, 0x53e, 0x53b, 0x537, 0x534, 0x530, + 0x52c, 0x529, 0x525, 0x522, 0x51e, 0x51b, 0x517, 0x514, + 0x510, 0x50c, 0x509, 0x506, 0x502, 0x4ff, 0x4fb, 0x4f8, + 0x4f4, 0x4f1, 0x4ed, 0x4ea, 0x4e7, 0x4e3, 0x4e0, 0x4dc, + 0x4d9, 0x4d6, 0x4d2, 0x4cf, 0x4cc, 0x4c8, 0x4c5, 0x4c2, + 0x4be, 0x4bb, 0x4b8, 0x4b5, 0x4b1, 0x4ae, 0x4ab, 0x4a8, + 0x4a4, 0x4a1, 0x49e, 0x49b, 0x498, 0x494, 0x491, 0x48e, + 0x48b, 0x488, 0x485, 0x482, 0x47e, 0x47b, 0x478, 0x475, + 0x472, 0x46f, 0x46c, 0x469, 0x466, 0x463, 0x460, 0x45d, + 0x45a, 0x457, 0x454, 0x451, 0x44e, 0x44b, 0x448, 0x445, + 0x442, 0x43f, 0x43c, 0x439, 0x436, 0x433, 0x430, 0x42d, + 0x42a, 0x428, 0x425, 0x422, 0x41f, 0x41c, 0x419, 0x416, + 0x414, 0x411, 0x40e, 0x40b, 0x408, 0x406, 0x403, 0x400 +}; + +/* + * freq mult table multiplied by 2 + * + * 1/2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 12, 12, 15, 15 + */ + +static const Bit8u mt[16] = { + 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 20, 24, 24, 30, 30 +}; + +/* + * ksl table + */ + +static const Bit8u kslrom[16] = { + 0, 32, 40, 45, 48, 51, 53, 55, 56, 58, 59, 60, 61, 62, 63, 64 +}; + +static const Bit8u kslshift[4] = { + 8, 1, 2, 0 +}; + +/* + * envelope generator constants + */ + +static const Bit8u eg_incstep[4][4] = { + { 0, 0, 0, 0 }, + { 1, 0, 0, 0 }, + { 1, 0, 1, 0 }, + { 1, 1, 1, 0 } +}; + +/* + * address decoding + */ + +static const Bit8s ad_slot[0x20] = { + 0, 1, 2, 3, 4, 5, -1, -1, 6, 7, 8, 9, 10, 11, -1, -1, + 12, 13, 14, 15, 16, 17, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 +}; + +static const Bit8u ch_slot[18] = { + 0, 1, 2, 6, 7, 8, 12, 13, 14, 18, 19, 20, 24, 25, 26, 30, 31, 32 +}; + +/* + * Envelope generator + */ + +typedef Bit16s(*envelope_sinfunc)(Bit16u phase, Bit16u envelope); +typedef void(*envelope_genfunc)(opl3_slot *slott); + +static Bit16s OPL3_EnvelopeCalcExp(Bit32u level) +{ + if (level > 0x1fff) + { + level = 0x1fff; + } + return (exprom[level & 0xff] << 1) >> (level >> 8); +} + +static Bit16s OPL3_EnvelopeCalcSin0(Bit16u phase, Bit16u envelope) +{ + Bit16u out = 0; + Bit16u neg = 0; + phase &= 0x3ff; + if (phase & 0x200) + { + neg = 0xffff; + } + if (phase & 0x100) + { + out = logsinrom[(phase & 0xff) ^ 0xff]; + } + else + { + out = logsinrom[phase & 0xff]; + } + return OPL3_EnvelopeCalcExp(out + (envelope << 3)) ^ neg; +} + +static Bit16s OPL3_EnvelopeCalcSin1(Bit16u phase, Bit16u envelope) +{ + Bit16u out = 0; + phase &= 0x3ff; + if (phase & 0x200) + { + out = 0x1000; + } + else if (phase & 0x100) + { + out = logsinrom[(phase & 0xff) ^ 0xff]; + } + else + { + out = logsinrom[phase & 0xff]; + } + return OPL3_EnvelopeCalcExp(out + (envelope << 3)); +} + +static Bit16s OPL3_EnvelopeCalcSin2(Bit16u phase, Bit16u envelope) +{ + Bit16u out = 0; + phase &= 0x3ff; + if (phase & 0x100) + { + out = logsinrom[(phase & 0xff) ^ 0xff]; + } + else + { + out = logsinrom[phase & 0xff]; + } + return OPL3_EnvelopeCalcExp(out + (envelope << 3)); +} + +static Bit16s OPL3_EnvelopeCalcSin3(Bit16u phase, Bit16u envelope) +{ + Bit16u out = 0; + phase &= 0x3ff; + if (phase & 0x100) + { + out = 0x1000; + } + else + { + out = logsinrom[phase & 0xff]; + } + return OPL3_EnvelopeCalcExp(out + (envelope << 3)); +} + +static Bit16s OPL3_EnvelopeCalcSin4(Bit16u phase, Bit16u envelope) +{ + Bit16u out = 0; + Bit16u neg = 0; + phase &= 0x3ff; + if ((phase & 0x300) == 0x100) + { + neg = 0xffff; + } + if (phase & 0x200) + { + out = 0x1000; + } + else if (phase & 0x80) + { + out = logsinrom[((phase ^ 0xff) << 1) & 0xff]; + } + else + { + out = logsinrom[(phase << 1) & 0xff]; + } + return OPL3_EnvelopeCalcExp(out + (envelope << 3)) ^ neg; +} + +static Bit16s OPL3_EnvelopeCalcSin5(Bit16u phase, Bit16u envelope) +{ + Bit16u out = 0; + phase &= 0x3ff; + if (phase & 0x200) + { + out = 0x1000; + } + else if (phase & 0x80) + { + out = logsinrom[((phase ^ 0xff) << 1) & 0xff]; + } + else + { + out = logsinrom[(phase << 1) & 0xff]; + } + return OPL3_EnvelopeCalcExp(out + (envelope << 3)); +} + +static Bit16s OPL3_EnvelopeCalcSin6(Bit16u phase, Bit16u envelope) +{ + Bit16u neg = 0; + phase &= 0x3ff; + if (phase & 0x200) + { + neg = 0xffff; + } + return OPL3_EnvelopeCalcExp(envelope << 3) ^ neg; +} + +static Bit16s OPL3_EnvelopeCalcSin7(Bit16u phase, Bit16u envelope) +{ + Bit16u out = 0; + Bit16u neg = 0; + phase &= 0x3ff; + if (phase & 0x200) + { + neg = 0xffff; + phase = (phase & 0x1ff) ^ 0x1ff; + } + out = phase << 3; + return OPL3_EnvelopeCalcExp(out + (envelope << 3)) ^ neg; +} + +static const envelope_sinfunc envelope_sin[8] = { + OPL3_EnvelopeCalcSin0, + OPL3_EnvelopeCalcSin1, + OPL3_EnvelopeCalcSin2, + OPL3_EnvelopeCalcSin3, + OPL3_EnvelopeCalcSin4, + OPL3_EnvelopeCalcSin5, + OPL3_EnvelopeCalcSin6, + OPL3_EnvelopeCalcSin7 +}; + +enum envelope_gen_num +{ + envelope_gen_num_attack = 0, + envelope_gen_num_decay = 1, + envelope_gen_num_sustain = 2, + envelope_gen_num_release = 3 +}; + +static void OPL3_EnvelopeUpdateKSL(opl3_slot *slot) +{ + Bit16s ksl = (kslrom[slot->channel->f_num >> 6] << 2) + - ((0x08 - slot->channel->block) << 5); + if (ksl < 0) + { + ksl = 0; + } + slot->eg_ksl = (Bit8u)ksl; +} + +static void OPL3_EnvelopeCalc(opl3_slot *slot) +{ + Bit8u nonzero; + Bit8u rate; + Bit8u rate_hi; + Bit8u rate_lo; + Bit8u reg_rate = 0; + Bit8u ks; + Bit8u eg_shift, shift; + Bit16u eg_rout; + Bit16s eg_inc; + Bit8u eg_off; + Bit8u reset = 0; + slot->eg_out = slot->eg_rout + (slot->reg_tl << 2) + + (slot->eg_ksl >> kslshift[slot->reg_ksl]) + *slot->trem; + if (slot->key && slot->eg_gen == envelope_gen_num_release) + { + reset = 1; + reg_rate = slot->reg_ar; + } + else + { + switch (slot->eg_gen) + { + case envelope_gen_num_attack: + reg_rate = slot->reg_ar; + break; + case envelope_gen_num_decay: + reg_rate = slot->reg_dr; + break; + case envelope_gen_num_sustain: + if (!slot->reg_type) + { + reg_rate = slot->reg_rr; + } + break; + case envelope_gen_num_release: + reg_rate = slot->reg_rr; + break; + } + } + slot->pg_reset = reset; + ks = slot->channel->ksv >> ((slot->reg_ksr ^ 1) << 1); + nonzero = (reg_rate != 0); + rate = ks + (reg_rate << 2); + rate_hi = rate >> 2; + rate_lo = rate & 0x03; + if (rate_hi & 0x10) + { + rate_hi = 0x0f; + } + eg_shift = rate_hi + slot->chip->eg_add; + shift = 0; + if (nonzero) + { + if (rate_hi < 12) + { + if (slot->chip->eg_state) + { + switch (eg_shift) + { + case 12: + shift = 1; + break; + case 13: + shift = (rate_lo >> 1) & 0x01; + break; + case 14: + shift = rate_lo & 0x01; + break; + default: + break; + } + } + } + else + { + shift = (rate_hi & 0x03) + eg_incstep[rate_lo][slot->chip->timer & 0x03]; + if (shift & 0x04) + { + shift = 0x03; + } + if (!shift) + { + shift = slot->chip->eg_state; + } + } + } + eg_rout = slot->eg_rout; + eg_inc = 0; + eg_off = 0; + /* Instant attack */ + if (reset && rate_hi == 0x0f) + { + eg_rout = 0x00; + } + /* Envelope off */ + if ((slot->eg_rout & 0x1f8) == 0x1f8) + { + eg_off = 1; + } + if (slot->eg_gen != envelope_gen_num_attack && !reset && eg_off) + { + eg_rout = 0x1ff; + } + switch (slot->eg_gen) + { + case envelope_gen_num_attack: + if (!slot->eg_rout) + { + slot->eg_gen = envelope_gen_num_decay; + } + else if (slot->key && shift > 0 && rate_hi != 0x0f) + { + eg_inc = ((~slot->eg_rout) << shift) >> 4; + } + break; + case envelope_gen_num_decay: + if ((slot->eg_rout >> 4) == slot->reg_sl) + { + slot->eg_gen = envelope_gen_num_sustain; + } + else if (!eg_off && !reset && shift > 0) + { + eg_inc = 1 << (shift - 1); + } + break; + case envelope_gen_num_sustain: + case envelope_gen_num_release: + if (!eg_off && !reset && shift > 0) + { + eg_inc = 1 << (shift - 1); + } + break; + } + slot->eg_rout = (eg_rout + eg_inc) & 0x1ff; + /* Key off */ + if (reset) + { + slot->eg_gen = envelope_gen_num_attack; + } + if (!slot->key) + { + slot->eg_gen = envelope_gen_num_release; + } +} + +static void OPL3_EnvelopeKeyOn(opl3_slot *slot, Bit8u type) +{ + slot->key |= type; +} + +static void OPL3_EnvelopeKeyOff(opl3_slot *slot, Bit8u type) +{ + slot->key &= ~type; +} + +/* + * Phase Generator + */ + +static void OPL3_PhaseGenerate(opl3_slot *slot) +{ + opl3_chip *chip; + Bit16u f_num; + Bit32u basefreq; + Bit8u rm_xor, n_bit; + Bit32u noise; + Bit16u phase; + + chip = slot->chip; + f_num = slot->channel->f_num; + if (slot->reg_vib) + { + Bit8s range; + Bit8u vibpos; + + range = (f_num >> 7) & 7; + vibpos = slot->chip->vibpos; + + if (!(vibpos & 3)) + { + range = 0; + } + else if (vibpos & 1) + { + range >>= 1; + } + range >>= slot->chip->vibshift; + + if (vibpos & 4) + { + range = -range; + } + f_num += range; + } + basefreq = (f_num << slot->channel->block) >> 1; + phase = (Bit16u)(slot->pg_phase >> 9); + if (slot->pg_reset) + { + slot->pg_phase = 0; + } + slot->pg_phase += (basefreq * mt[slot->reg_mult]) >> 1; + /* Rhythm mode */ + noise = chip->noise; + slot->pg_phase_out = phase; + if (slot->slot_num == 13) /* hh */ + { + chip->rm_hh_bit2 = (phase >> 2) & 1; + chip->rm_hh_bit3 = (phase >> 3) & 1; + chip->rm_hh_bit7 = (phase >> 7) & 1; + chip->rm_hh_bit8 = (phase >> 8) & 1; + } + if (slot->slot_num == 17 && (chip->rhy & 0x20)) /* tc */ + { + chip->rm_tc_bit3 = (phase >> 3) & 1; + chip->rm_tc_bit5 = (phase >> 5) & 1; + } + if (chip->rhy & 0x20) + { + rm_xor = (chip->rm_hh_bit2 ^ chip->rm_hh_bit7) + | (chip->rm_hh_bit3 ^ chip->rm_tc_bit5) + | (chip->rm_tc_bit3 ^ chip->rm_tc_bit5); + switch (slot->slot_num) + { + case 13: /* hh */ + slot->pg_phase_out = rm_xor << 9; + if (rm_xor ^ (noise & 1)) + { + slot->pg_phase_out |= 0xd0; + } + else + { + slot->pg_phase_out |= 0x34; + } + break; + case 16: /* sd */ + slot->pg_phase_out = (chip->rm_hh_bit8 << 9) + | ((chip->rm_hh_bit8 ^ (noise & 1)) << 8); + break; + case 17: /* tc */ + slot->pg_phase_out = (rm_xor << 9) | 0x80; + break; + default: + break; + } + } + n_bit = ((noise >> 14) ^ noise) & 0x01; + chip->noise = (noise >> 1) | (n_bit << 22); +} + +/* + * Slot + */ + +static void OPL3_SlotWrite20(opl3_slot *slot, Bit8u data) +{ + if ((data >> 7) & 0x01) + { + slot->trem = &slot->chip->tremolo; + } + else + { + slot->trem = (Bit8u*)&slot->chip->zeromod; + } + slot->reg_vib = (data >> 6) & 0x01; + slot->reg_type = (data >> 5) & 0x01; + slot->reg_ksr = (data >> 4) & 0x01; + slot->reg_mult = data & 0x0f; +} + +static void OPL3_SlotWrite40(opl3_slot *slot, Bit8u data) +{ + slot->reg_ksl = (data >> 6) & 0x03; + slot->reg_tl = data & 0x3f; + OPL3_EnvelopeUpdateKSL(slot); +} + +static void OPL3_SlotWrite60(opl3_slot *slot, Bit8u data) +{ + slot->reg_ar = (data >> 4) & 0x0f; + slot->reg_dr = data & 0x0f; +} + +static void OPL3_SlotWrite80(opl3_slot *slot, Bit8u data) +{ + slot->reg_sl = (data >> 4) & 0x0f; + if (slot->reg_sl == 0x0f) + { + slot->reg_sl = 0x1f; + } + slot->reg_rr = data & 0x0f; +} + +static void OPL3_SlotWriteE0(opl3_slot *slot, Bit8u data) +{ + slot->reg_wf = data & 0x07; + if (slot->chip->newm == 0x00) + { + slot->reg_wf &= 0x03; + } +} + +static void OPL3_SlotGenerate(opl3_slot *slot) +{ + slot->out = envelope_sin[slot->reg_wf](slot->pg_phase_out + *slot->mod, slot->eg_out); +} + +static void OPL3_SlotCalcFB(opl3_slot *slot) +{ + if (slot->channel->fb != 0x00) + { + slot->fbmod = (slot->prout + slot->out) >> (0x09 - slot->channel->fb); + } + else + { + slot->fbmod = 0; + } + slot->prout = slot->out; +} + +/* + * Channel + */ + +static void OPL3_ChannelSetupAlg(opl3_channel *channel); + +static void OPL3_ChannelUpdateRhythm(opl3_chip *chip, Bit8u data) +{ + opl3_channel *channel6; + opl3_channel *channel7; + opl3_channel *channel8; + Bit8u chnum; + + chip->rhy = data & 0x3f; + if (chip->rhy & 0x20) + { + channel6 = &chip->channel[6]; + channel7 = &chip->channel[7]; + channel8 = &chip->channel[8]; + channel6->out[0] = &channel6->slots[1]->out; + channel6->out[1] = &channel6->slots[1]->out; + channel6->out[2] = &chip->zeromod; + channel6->out[3] = &chip->zeromod; + channel7->out[0] = &channel7->slots[0]->out; + channel7->out[1] = &channel7->slots[0]->out; + channel7->out[2] = &channel7->slots[1]->out; + channel7->out[3] = &channel7->slots[1]->out; + channel8->out[0] = &channel8->slots[0]->out; + channel8->out[1] = &channel8->slots[0]->out; + channel8->out[2] = &channel8->slots[1]->out; + channel8->out[3] = &channel8->slots[1]->out; + for (chnum = 6; chnum < 9; chnum++) + { + chip->channel[chnum].chtype = ch_drum; + } + OPL3_ChannelSetupAlg(channel6); + OPL3_ChannelSetupAlg(channel7); + OPL3_ChannelSetupAlg(channel8); + /* hh */ + if (chip->rhy & 0x01) + { + OPL3_EnvelopeKeyOn(channel7->slots[0], egk_drum); + } + else + { + OPL3_EnvelopeKeyOff(channel7->slots[0], egk_drum); + } + /* tc */ + if (chip->rhy & 0x02) + { + OPL3_EnvelopeKeyOn(channel8->slots[1], egk_drum); + } + else + { + OPL3_EnvelopeKeyOff(channel8->slots[1], egk_drum); + } + /* tom */ + if (chip->rhy & 0x04) + { + OPL3_EnvelopeKeyOn(channel8->slots[0], egk_drum); + } + else + { + OPL3_EnvelopeKeyOff(channel8->slots[0], egk_drum); + } + /* sd */ + if (chip->rhy & 0x08) + { + OPL3_EnvelopeKeyOn(channel7->slots[1], egk_drum); + } + else + { + OPL3_EnvelopeKeyOff(channel7->slots[1], egk_drum); + } + /* bd */ + if (chip->rhy & 0x10) + { + OPL3_EnvelopeKeyOn(channel6->slots[0], egk_drum); + OPL3_EnvelopeKeyOn(channel6->slots[1], egk_drum); + } + else + { + OPL3_EnvelopeKeyOff(channel6->slots[0], egk_drum); + OPL3_EnvelopeKeyOff(channel6->slots[1], egk_drum); + } + } + else + { + for (chnum = 6; chnum < 9; chnum++) + { + chip->channel[chnum].chtype = ch_2op; + OPL3_ChannelSetupAlg(&chip->channel[chnum]); + OPL3_EnvelopeKeyOff(chip->channel[chnum].slots[0], egk_drum); + OPL3_EnvelopeKeyOff(chip->channel[chnum].slots[1], egk_drum); + } + } +} + +static void OPL3_ChannelWriteA0(opl3_channel *channel, Bit8u data) +{ + if (channel->chip->newm && channel->chtype == ch_4op2) + { + return; + } + channel->f_num = (channel->f_num & 0x300) | data; + channel->ksv = (channel->block << 1) + | ((channel->f_num >> (0x09 - channel->chip->nts)) & 0x01); + OPL3_EnvelopeUpdateKSL(channel->slots[0]); + OPL3_EnvelopeUpdateKSL(channel->slots[1]); + if (channel->chip->newm && channel->chtype == ch_4op) + { + channel->pair->f_num = channel->f_num; + channel->pair->ksv = channel->ksv; + OPL3_EnvelopeUpdateKSL(channel->pair->slots[0]); + OPL3_EnvelopeUpdateKSL(channel->pair->slots[1]); + } +} + +static void OPL3_ChannelWriteB0(opl3_channel *channel, Bit8u data) +{ + if (channel->chip->newm && channel->chtype == ch_4op2) + { + return; + } + channel->f_num = (channel->f_num & 0xff) | ((data & 0x03) << 8); + channel->block = (data >> 2) & 0x07; + channel->ksv = (channel->block << 1) + | ((channel->f_num >> (0x09 - channel->chip->nts)) & 0x01); + OPL3_EnvelopeUpdateKSL(channel->slots[0]); + OPL3_EnvelopeUpdateKSL(channel->slots[1]); + if (channel->chip->newm && channel->chtype == ch_4op) + { + channel->pair->f_num = channel->f_num; + channel->pair->block = channel->block; + channel->pair->ksv = channel->ksv; + OPL3_EnvelopeUpdateKSL(channel->pair->slots[0]); + OPL3_EnvelopeUpdateKSL(channel->pair->slots[1]); + } +} + +static void OPL3_ChannelSetupAlg(opl3_channel *channel) +{ + if (channel->chtype == ch_drum) + { + if (channel->ch_num == 7 || channel->ch_num == 8) + { + channel->slots[0]->mod = &channel->chip->zeromod; + channel->slots[1]->mod = &channel->chip->zeromod; + return; + } + switch (channel->alg & 0x01) + { + case 0x00: + channel->slots[0]->mod = &channel->slots[0]->fbmod; + channel->slots[1]->mod = &channel->slots[0]->out; + break; + case 0x01: + channel->slots[0]->mod = &channel->slots[0]->fbmod; + channel->slots[1]->mod = &channel->chip->zeromod; + break; + } + return; + } + if (channel->alg & 0x08) + { + return; + } + if (channel->alg & 0x04) + { + channel->pair->out[0] = &channel->chip->zeromod; + channel->pair->out[1] = &channel->chip->zeromod; + channel->pair->out[2] = &channel->chip->zeromod; + channel->pair->out[3] = &channel->chip->zeromod; + switch (channel->alg & 0x03) + { + case 0x00: + channel->pair->slots[0]->mod = &channel->pair->slots[0]->fbmod; + channel->pair->slots[1]->mod = &channel->pair->slots[0]->out; + channel->slots[0]->mod = &channel->pair->slots[1]->out; + channel->slots[1]->mod = &channel->slots[0]->out; + channel->out[0] = &channel->slots[1]->out; + channel->out[1] = &channel->chip->zeromod; + channel->out[2] = &channel->chip->zeromod; + channel->out[3] = &channel->chip->zeromod; + break; + case 0x01: + channel->pair->slots[0]->mod = &channel->pair->slots[0]->fbmod; + channel->pair->slots[1]->mod = &channel->pair->slots[0]->out; + channel->slots[0]->mod = &channel->chip->zeromod; + channel->slots[1]->mod = &channel->slots[0]->out; + channel->out[0] = &channel->pair->slots[1]->out; + channel->out[1] = &channel->slots[1]->out; + channel->out[2] = &channel->chip->zeromod; + channel->out[3] = &channel->chip->zeromod; + break; + case 0x02: + channel->pair->slots[0]->mod = &channel->pair->slots[0]->fbmod; + channel->pair->slots[1]->mod = &channel->chip->zeromod; + channel->slots[0]->mod = &channel->pair->slots[1]->out; + channel->slots[1]->mod = &channel->slots[0]->out; + channel->out[0] = &channel->pair->slots[0]->out; + channel->out[1] = &channel->slots[1]->out; + channel->out[2] = &channel->chip->zeromod; + channel->out[3] = &channel->chip->zeromod; + break; + case 0x03: + channel->pair->slots[0]->mod = &channel->pair->slots[0]->fbmod; + channel->pair->slots[1]->mod = &channel->chip->zeromod; + channel->slots[0]->mod = &channel->pair->slots[1]->out; + channel->slots[1]->mod = &channel->chip->zeromod; + channel->out[0] = &channel->pair->slots[0]->out; + channel->out[1] = &channel->slots[0]->out; + channel->out[2] = &channel->slots[1]->out; + channel->out[3] = &channel->chip->zeromod; + break; + } + } + else + { + switch (channel->alg & 0x01) + { + case 0x00: + channel->slots[0]->mod = &channel->slots[0]->fbmod; + channel->slots[1]->mod = &channel->slots[0]->out; + channel->out[0] = &channel->slots[1]->out; + channel->out[1] = &channel->chip->zeromod; + channel->out[2] = &channel->chip->zeromod; + channel->out[3] = &channel->chip->zeromod; + break; + case 0x01: + channel->slots[0]->mod = &channel->slots[0]->fbmod; + channel->slots[1]->mod = &channel->chip->zeromod; + channel->out[0] = &channel->slots[0]->out; + channel->out[1] = &channel->slots[1]->out; + channel->out[2] = &channel->chip->zeromod; + channel->out[3] = &channel->chip->zeromod; + break; + } + } +} + +static void OPL3_ChannelWriteC0(opl3_channel *channel, Bit8u data) +{ + channel->fb = (data & 0x0e) >> 1; + channel->con = data & 0x01; + channel->alg = channel->con; + if (channel->chip->newm) + { + if (channel->chtype == ch_4op) + { + channel->pair->alg = 0x04 | (channel->con << 1) | (channel->pair->con); + channel->alg = 0x08; + OPL3_ChannelSetupAlg(channel->pair); + } + else if (channel->chtype == ch_4op2) + { + channel->alg = 0x04 | (channel->pair->con << 1) | (channel->con); + channel->pair->alg = 0x08; + OPL3_ChannelSetupAlg(channel); + } + else + { + OPL3_ChannelSetupAlg(channel); + } + } + else + { + OPL3_ChannelSetupAlg(channel); + } + if (channel->chip->newm) + { + channel->cha = ((data >> 4) & 0x01) ? ~0 : 0; + channel->chb = ((data >> 5) & 0x01) ? ~0 : 0; + } + else + { + channel->cha = channel->chb = (Bit16u)~0; + } +} + +static void OPL3_ChannelKeyOn(opl3_channel *channel) +{ + if (channel->chip->newm) + { + if (channel->chtype == ch_4op) + { + OPL3_EnvelopeKeyOn(channel->slots[0], egk_norm); + OPL3_EnvelopeKeyOn(channel->slots[1], egk_norm); + OPL3_EnvelopeKeyOn(channel->pair->slots[0], egk_norm); + OPL3_EnvelopeKeyOn(channel->pair->slots[1], egk_norm); + } + else if (channel->chtype == ch_2op || channel->chtype == ch_drum) + { + OPL3_EnvelopeKeyOn(channel->slots[0], egk_norm); + OPL3_EnvelopeKeyOn(channel->slots[1], egk_norm); + } + } + else + { + OPL3_EnvelopeKeyOn(channel->slots[0], egk_norm); + OPL3_EnvelopeKeyOn(channel->slots[1], egk_norm); + } +} + +static void OPL3_ChannelKeyOff(opl3_channel *channel) +{ + if (channel->chip->newm) + { + if (channel->chtype == ch_4op) + { + OPL3_EnvelopeKeyOff(channel->slots[0], egk_norm); + OPL3_EnvelopeKeyOff(channel->slots[1], egk_norm); + OPL3_EnvelopeKeyOff(channel->pair->slots[0], egk_norm); + OPL3_EnvelopeKeyOff(channel->pair->slots[1], egk_norm); + } + else if (channel->chtype == ch_2op || channel->chtype == ch_drum) + { + OPL3_EnvelopeKeyOff(channel->slots[0], egk_norm); + OPL3_EnvelopeKeyOff(channel->slots[1], egk_norm); + } + } + else + { + OPL3_EnvelopeKeyOff(channel->slots[0], egk_norm); + OPL3_EnvelopeKeyOff(channel->slots[1], egk_norm); + } +} + +static void OPL3_ChannelSet4Op(opl3_chip *chip, Bit8u data) +{ + Bit8u bit; + Bit8u chnum; + for (bit = 0; bit < 6; bit++) + { + chnum = bit; + if (bit >= 3) + { + chnum += 9 - 3; + } + if ((data >> bit) & 0x01) + { + chip->channel[chnum].chtype = ch_4op; + chip->channel[chnum + 3].chtype = ch_4op2; + } + else + { + chip->channel[chnum].chtype = ch_2op; + chip->channel[chnum + 3].chtype = ch_2op; + } + } +} + +static Bit16s OPL3_ClipSample(Bit32s sample) +{ + if (sample > 32767) + { + sample = 32767; + } + else if (sample < -32768) + { + sample = -32768; + } + return (Bit16s)sample; +} + +void OPL3_Generate(opl3_chip *chip, Bit16s *buf) +{ + Bit8u ii; + Bit8u jj; + Bit16s accm; + Bit8u shift = 0; + + buf[1] = OPL3_ClipSample(chip->mixbuff[1]); + + for (ii = 0; ii < 15; ii++) + { + OPL3_SlotCalcFB(&chip->slot[ii]); + OPL3_EnvelopeCalc(&chip->slot[ii]); + OPL3_PhaseGenerate(&chip->slot[ii]); + OPL3_SlotGenerate(&chip->slot[ii]); + } + + chip->mixbuff[0] = 0; + for (ii = 0; ii < 18; ii++) + { + accm = 0; + for (jj = 0; jj < 4; jj++) + { + accm += *chip->channel[ii].out[jj]; + } + chip->mixbuff[0] += (Bit16s)(accm & chip->channel[ii].cha); + } + + for (ii = 15; ii < 18; ii++) + { + OPL3_SlotCalcFB(&chip->slot[ii]); + OPL3_EnvelopeCalc(&chip->slot[ii]); + OPL3_PhaseGenerate(&chip->slot[ii]); + OPL3_SlotGenerate(&chip->slot[ii]); + } + + buf[0] = OPL3_ClipSample(chip->mixbuff[0]); + + for (ii = 18; ii < 33; ii++) + { + OPL3_SlotCalcFB(&chip->slot[ii]); + OPL3_EnvelopeCalc(&chip->slot[ii]); + OPL3_PhaseGenerate(&chip->slot[ii]); + OPL3_SlotGenerate(&chip->slot[ii]); + } + + chip->mixbuff[1] = 0; + for (ii = 0; ii < 18; ii++) + { + accm = 0; + for (jj = 0; jj < 4; jj++) + { + accm += *chip->channel[ii].out[jj]; + } + chip->mixbuff[1] += (Bit16s)(accm & chip->channel[ii].chb); + } + + for (ii = 33; ii < 36; ii++) + { + OPL3_SlotCalcFB(&chip->slot[ii]); + OPL3_EnvelopeCalc(&chip->slot[ii]); + OPL3_PhaseGenerate(&chip->slot[ii]); + OPL3_SlotGenerate(&chip->slot[ii]); + } + + if ((chip->timer & 0x3f) == 0x3f) + { + chip->tremolopos = (chip->tremolopos + 1) % 210; + } + if (chip->tremolopos < 105) + { + chip->tremolo = chip->tremolopos >> chip->tremoloshift; + } + else + { + chip->tremolo = (210 - chip->tremolopos) >> chip->tremoloshift; + } + + if ((chip->timer & 0x3ff) == 0x3ff) + { + chip->vibpos = (chip->vibpos + 1) & 7; + } + + chip->timer++; + + chip->eg_add = 0; + if (chip->eg_timer) + { + while (shift < 36 && ((chip->eg_timer >> shift) & 1) == 0) + { + shift++; + } + if (shift > 12) + { + chip->eg_add = 0; + } + else + { + chip->eg_add = shift + 1; + } + } + + if (chip->eg_timerrem || chip->eg_state) + { + if (chip->eg_timer == 0xfffffffff) + { + chip->eg_timer = 0; + chip->eg_timerrem = 1; + } + else + { + chip->eg_timer++; + chip->eg_timerrem = 0; + } + } + + chip->eg_state ^= 1; + + while (chip->writebuf[chip->writebuf_cur].time <= chip->writebuf_samplecnt) + { + if (!(chip->writebuf[chip->writebuf_cur].reg & 0x200)) + { + break; + } + chip->writebuf[chip->writebuf_cur].reg &= 0x1ff; + OPL3_WriteReg(chip, chip->writebuf[chip->writebuf_cur].reg, + chip->writebuf[chip->writebuf_cur].data); + chip->writebuf_cur = (chip->writebuf_cur + 1) % OPL_WRITEBUF_SIZE; + } + chip->writebuf_samplecnt++; +} + +void OPL3_GenerateResampled(opl3_chip *chip, Bit16s *buf) +{ + while (chip->samplecnt >= chip->rateratio) + { + chip->oldsamples[0] = chip->samples[0]; + chip->oldsamples[1] = chip->samples[1]; + OPL3_Generate(chip, chip->samples); + chip->samplecnt -= chip->rateratio; + } + buf[0] = (Bit16s)((chip->oldsamples[0] * (chip->rateratio - chip->samplecnt) + + chip->samples[0] * chip->samplecnt) / chip->rateratio); + buf[1] = (Bit16s)((chip->oldsamples[1] * (chip->rateratio - chip->samplecnt) + + chip->samples[1] * chip->samplecnt) / chip->rateratio); + chip->samplecnt += 1 << RSM_FRAC; +} + +void OPL3_Reset(opl3_chip *chip, Bit32u samplerate) +{ + Bit8u slotnum; + Bit8u channum; + + memset(chip, 0, sizeof(opl3_chip)); + for (slotnum = 0; slotnum < 36; slotnum++) + { + chip->slot[slotnum].chip = chip; + chip->slot[slotnum].mod = &chip->zeromod; + chip->slot[slotnum].eg_rout = 0x1ff; + chip->slot[slotnum].eg_out = 0x1ff; + chip->slot[slotnum].eg_gen = envelope_gen_num_release; + chip->slot[slotnum].trem = (Bit8u*)&chip->zeromod; + chip->slot[slotnum].slot_num = slotnum; + } + for (channum = 0; channum < 18; channum++) + { + chip->channel[channum].slots[0] = &chip->slot[ch_slot[channum]]; + chip->channel[channum].slots[1] = &chip->slot[ch_slot[channum] + 3]; + chip->slot[ch_slot[channum]].channel = &chip->channel[channum]; + chip->slot[ch_slot[channum] + 3].channel = &chip->channel[channum]; + if ((channum % 9) < 3) + { + chip->channel[channum].pair = &chip->channel[channum + 3]; + } + else if ((channum % 9) < 6) + { + chip->channel[channum].pair = &chip->channel[channum - 3]; + } + chip->channel[channum].chip = chip; + chip->channel[channum].out[0] = &chip->zeromod; + chip->channel[channum].out[1] = &chip->zeromod; + chip->channel[channum].out[2] = &chip->zeromod; + chip->channel[channum].out[3] = &chip->zeromod; + chip->channel[channum].chtype = ch_2op; + chip->channel[channum].cha = 0xffff; + chip->channel[channum].chb = 0xffff; + chip->channel[channum].ch_num = channum; + OPL3_ChannelSetupAlg(&chip->channel[channum]); + } + chip->noise = 1; + chip->rateratio = (samplerate << RSM_FRAC) / 49716; + chip->tremoloshift = 4; + chip->vibshift = 1; +} + +void OPL3_WriteReg(opl3_chip *chip, Bit16u reg, Bit8u v) +{ + Bit8u high = (reg >> 8) & 0x01; + Bit8u regm = reg & 0xff; + switch (regm & 0xf0) + { + case 0x00: + if (high) + { + switch (regm & 0x0f) + { + case 0x04: + OPL3_ChannelSet4Op(chip, v); + break; + case 0x05: + chip->newm = v & 0x01; + break; + } + } + else + { + switch (regm & 0x0f) + { + case 0x08: + chip->nts = (v >> 6) & 0x01; + break; + } + } + break; + case 0x20: + case 0x30: + if (ad_slot[regm & 0x1f] >= 0) + { + OPL3_SlotWrite20(&chip->slot[18 * high + ad_slot[regm & 0x1f]], v); + } + break; + case 0x40: + case 0x50: + if (ad_slot[regm & 0x1f] >= 0) + { + OPL3_SlotWrite40(&chip->slot[18 * high + ad_slot[regm & 0x1f]], v); + } + break; + case 0x60: + case 0x70: + if (ad_slot[regm & 0x1f] >= 0) + { + OPL3_SlotWrite60(&chip->slot[18 * high + ad_slot[regm & 0x1f]], v); + } + break; + case 0x80: + case 0x90: + if (ad_slot[regm & 0x1f] >= 0) + { + OPL3_SlotWrite80(&chip->slot[18 * high + ad_slot[regm & 0x1f]], v); + } + break; + case 0xe0: + case 0xf0: + if (ad_slot[regm & 0x1f] >= 0) + { + OPL3_SlotWriteE0(&chip->slot[18 * high + ad_slot[regm & 0x1f]], v); + } + break; + case 0xa0: + if ((regm & 0x0f) < 9) + { + OPL3_ChannelWriteA0(&chip->channel[9 * high + (regm & 0x0f)], v); + } + break; + case 0xb0: + if (regm == 0xbd && !high) + { + chip->tremoloshift = (((v >> 7) ^ 1) << 1) + 2; + chip->vibshift = ((v >> 6) & 0x01) ^ 1; + OPL3_ChannelUpdateRhythm(chip, v); + } + else if ((regm & 0x0f) < 9) + { + OPL3_ChannelWriteB0(&chip->channel[9 * high + (regm & 0x0f)], v); + if (v & 0x20) + { + OPL3_ChannelKeyOn(&chip->channel[9 * high + (regm & 0x0f)]); + } + else + { + OPL3_ChannelKeyOff(&chip->channel[9 * high + (regm & 0x0f)]); + } + } + break; + case 0xc0: + if ((regm & 0x0f) < 9) + { + OPL3_ChannelWriteC0(&chip->channel[9 * high + (regm & 0x0f)], v); + } + break; + } +} + +void OPL3_WriteRegBuffered(opl3_chip *chip, Bit16u reg, Bit8u v) +{ + Bit64u time1, time2; + + if (chip->writebuf[chip->writebuf_last].reg & 0x200) + { + OPL3_WriteReg(chip, chip->writebuf[chip->writebuf_last].reg & 0x1ff, + chip->writebuf[chip->writebuf_last].data); + + chip->writebuf_cur = (chip->writebuf_last + 1) % OPL_WRITEBUF_SIZE; + chip->writebuf_samplecnt = chip->writebuf[chip->writebuf_last].time; + } + + chip->writebuf[chip->writebuf_last].reg = reg | 0x200; + chip->writebuf[chip->writebuf_last].data = v; + time1 = chip->writebuf_lasttime + OPL_WRITEBUF_DELAY; + time2 = chip->writebuf_samplecnt; + + if (time1 < time2) + { + time1 = time2; + } + + chip->writebuf[chip->writebuf_last].time = time1; + chip->writebuf_lasttime = time1; + chip->writebuf_last = (chip->writebuf_last + 1) % OPL_WRITEBUF_SIZE; +} + +void OPL3_GenerateStream(opl3_chip *chip, Bit16s *sndptr, Bit32u numsamples) +{ + Bit32u i; + + for(i = 0; i < numsamples; i++) + { + OPL3_GenerateResampled(chip, sndptr); + sndptr += 2; + } +} + +void OPL3_GenerateStreamMix(opl3_chip *chip, Bit16s *sndptr, Bit32u numsamples) +{ + Bit32u i; + Bit16s sample[2]; + + for(i = 0; i < numsamples; i++) + { + OPL3_GenerateResampled(chip, sample); + sndptr[0] += sample[0]; + sndptr[1] += sample[1]; + sndptr += 2; + } +} diff --git a/src/chips/nuked/nukedopl3.h b/src/chips/nuked/nukedopl3.h new file mode 100644 index 0000000..ce748b1 --- /dev/null +++ b/src/chips/nuked/nukedopl3.h @@ -0,0 +1,160 @@ +/* + * Copyright (C) 2013-2018 Alexey Khokholov (Nuke.YKT) + * + * 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. + * + * + * Nuked OPL3 emulator. + * Thanks: + * MAME Development Team(Jarek Burczynski, Tatsuyuki Satoh): + * Feedback and Rhythm part calculation information. + * forums.submarine.org.uk(carbon14, opl3): + * Tremolo and phase generator calculation information. + * OPLx decapsulated(Matthew Gambrell, Olli Niemitalo): + * OPL2 ROMs. + * siliconpr0n.org(John McMaster, digshadow): + * YMF262 and VRC VII decaps and die shots. + * + * version: 1.8 + */ + +#ifndef OPL_OPL3_H +#define OPL_OPL3_H + +#include <inttypes.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#define OPL_WRITEBUF_SIZE 1024 +#define OPL_WRITEBUF_DELAY 2 + +typedef uintptr_t Bitu; +typedef intptr_t Bits; +typedef uint64_t Bit64u; +typedef int64_t Bit64s; +typedef uint32_t Bit32u; +typedef int32_t Bit32s; +typedef uint16_t Bit16u; +typedef int16_t Bit16s; +typedef uint8_t Bit8u; +typedef int8_t Bit8s; + +typedef struct _opl3_slot opl3_slot; +typedef struct _opl3_channel opl3_channel; +typedef struct _opl3_chip opl3_chip; + +struct _opl3_slot { + opl3_channel *channel; + opl3_chip *chip; + Bit16s out; + Bit16s fbmod; + Bit16s *mod; + Bit16s prout; + Bit16s eg_rout; + Bit16s eg_out; + Bit8u eg_inc; + Bit8u eg_gen; + Bit8u eg_rate; + Bit8u eg_ksl; + Bit8u *trem; + Bit8u reg_vib; + Bit8u reg_type; + Bit8u reg_ksr; + Bit8u reg_mult; + Bit8u reg_ksl; + Bit8u reg_tl; + Bit8u reg_ar; + Bit8u reg_dr; + Bit8u reg_sl; + Bit8u reg_rr; + Bit8u reg_wf; + Bit8u key; + Bit32u pg_reset; + Bit32u pg_phase; + Bit16u pg_phase_out; + Bit8u slot_num; +}; + +struct _opl3_channel { + opl3_slot *slots[2]; + opl3_channel *pair; + opl3_chip *chip; + Bit16s *out[4]; + Bit8u chtype; + Bit16u f_num; + Bit8u block; + Bit8u fb; + Bit8u con; + Bit8u alg; + Bit8u ksv; + Bit16u cha, chb; + Bit8u ch_num; +}; + +typedef struct _opl3_writebuf { + Bit64u time; + Bit16u reg; + Bit8u data; +} opl3_writebuf; + +struct _opl3_chip { + opl3_channel channel[18]; + opl3_slot slot[36]; + Bit16u timer; + Bit64u eg_timer; + Bit8u eg_timerrem; + Bit8u eg_state; + Bit8u eg_add; + Bit8u newm; + Bit8u nts; + Bit8u rhy; + Bit8u vibpos; + Bit8u vibshift; + Bit8u tremolo; + Bit8u tremolopos; + Bit8u tremoloshift; + Bit32u noise; + Bit16s zeromod; + Bit32s mixbuff[2]; + Bit8u rm_hh_bit2; + Bit8u rm_hh_bit3; + Bit8u rm_hh_bit7; + Bit8u rm_hh_bit8; + Bit8u rm_tc_bit3; + Bit8u rm_tc_bit5; + /* OPL3L */ + Bit32s rateratio; + Bit32s samplecnt; + Bit16s oldsamples[2]; + Bit16s samples[2]; + + Bit64u writebuf_samplecnt; + Bit32u writebuf_cur; + Bit32u writebuf_last; + Bit64u writebuf_lasttime; + opl3_writebuf writebuf[OPL_WRITEBUF_SIZE]; +}; + +void OPL3_Generate(opl3_chip *chip, Bit16s *buf); +void OPL3_GenerateResampled(opl3_chip *chip, Bit16s *buf); +void OPL3_Reset(opl3_chip *chip, Bit32u samplerate); +void OPL3_WriteReg(opl3_chip *chip, Bit16u reg, Bit8u v); +void OPL3_WriteRegBuffered(opl3_chip *chip, Bit16u reg, Bit8u v); +void OPL3_GenerateStream(opl3_chip *chip, Bit16s *sndptr, Bit32u numsamples); +void OPL3_GenerateStreamMix(opl3_chip *chip, Bit16s *sndptr, Bit32u numsamples); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/src/chips/nuked/nukedopl3_174.c b/src/chips/nuked/nukedopl3_174.c new file mode 100644 index 0000000..401089c --- /dev/null +++ b/src/chips/nuked/nukedopl3_174.c @@ -0,0 +1,1391 @@ +/* + * Copyright (C) 2013-2016 Alexey Khokholov (Nuke.YKT) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser 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. + * + * Nuked OPL3 emulator. + * Thanks: + * MAME Development Team(Jarek Burczynski, Tatsuyuki Satoh): + * Feedback and Rhythm part calculation information. + * forums.submarine.org.uk(carbon14, opl3): + * Tremolo and phase generator calculation information. + * OPLx decapsulated(Matthew Gambrell, Olli Niemitalo): + * OPL2 ROMs. + * + * version: 1.7.4 + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include "nukedopl3_174.h" + +#define RSM_FRAC 10 + +/* Channel types */ + +enum { + ch_2op = 0, + ch_4op = 1, + ch_4op2 = 2, + ch_drum = 3 +}; + +/* Envelope key types */ + +enum { + egk_norm = 0x01, + egk_drum = 0x02 +}; + + +/* + * logsin table + */ + +static const Bit16u logsinrom[512] = { + 0x859, 0x6c3, 0x607, 0x58b, 0x52e, 0x4e4, 0x4a6, 0x471, + 0x443, 0x41a, 0x3f5, 0x3d3, 0x3b5, 0x398, 0x37e, 0x365, + 0x34e, 0x339, 0x324, 0x311, 0x2ff, 0x2ed, 0x2dc, 0x2cd, + 0x2bd, 0x2af, 0x2a0, 0x293, 0x286, 0x279, 0x26d, 0x261, + 0x256, 0x24b, 0x240, 0x236, 0x22c, 0x222, 0x218, 0x20f, + 0x206, 0x1fd, 0x1f5, 0x1ec, 0x1e4, 0x1dc, 0x1d4, 0x1cd, + 0x1c5, 0x1be, 0x1b7, 0x1b0, 0x1a9, 0x1a2, 0x19b, 0x195, + 0x18f, 0x188, 0x182, 0x17c, 0x177, 0x171, 0x16b, 0x166, + 0x160, 0x15b, 0x155, 0x150, 0x14b, 0x146, 0x141, 0x13c, + 0x137, 0x133, 0x12e, 0x129, 0x125, 0x121, 0x11c, 0x118, + 0x114, 0x10f, 0x10b, 0x107, 0x103, 0x0ff, 0x0fb, 0x0f8, + 0x0f4, 0x0f0, 0x0ec, 0x0e9, 0x0e5, 0x0e2, 0x0de, 0x0db, + 0x0d7, 0x0d4, 0x0d1, 0x0cd, 0x0ca, 0x0c7, 0x0c4, 0x0c1, + 0x0be, 0x0bb, 0x0b8, 0x0b5, 0x0b2, 0x0af, 0x0ac, 0x0a9, + 0x0a7, 0x0a4, 0x0a1, 0x09f, 0x09c, 0x099, 0x097, 0x094, + 0x092, 0x08f, 0x08d, 0x08a, 0x088, 0x086, 0x083, 0x081, + 0x07f, 0x07d, 0x07a, 0x078, 0x076, 0x074, 0x072, 0x070, + 0x06e, 0x06c, 0x06a, 0x068, 0x066, 0x064, 0x062, 0x060, + 0x05e, 0x05c, 0x05b, 0x059, 0x057, 0x055, 0x053, 0x052, + 0x050, 0x04e, 0x04d, 0x04b, 0x04a, 0x048, 0x046, 0x045, + 0x043, 0x042, 0x040, 0x03f, 0x03e, 0x03c, 0x03b, 0x039, + 0x038, 0x037, 0x035, 0x034, 0x033, 0x031, 0x030, 0x02f, + 0x02e, 0x02d, 0x02b, 0x02a, 0x029, 0x028, 0x027, 0x026, + 0x025, 0x024, 0x023, 0x022, 0x021, 0x020, 0x01f, 0x01e, + 0x01d, 0x01c, 0x01b, 0x01a, 0x019, 0x018, 0x017, 0x017, + 0x016, 0x015, 0x014, 0x014, 0x013, 0x012, 0x011, 0x011, + 0x010, 0x00f, 0x00f, 0x00e, 0x00d, 0x00d, 0x00c, 0x00c, + 0x00b, 0x00a, 0x00a, 0x009, 0x009, 0x008, 0x008, 0x007, + 0x007, 0x007, 0x006, 0x006, 0x005, 0x005, 0x005, 0x004, + 0x004, 0x004, 0x003, 0x003, 0x003, 0x002, 0x002, 0x002, + 0x002, 0x001, 0x001, 0x001, 0x001, 0x001, 0x001, 0x001, + 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, + 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, 0x000, + 0x001, 0x001, 0x001, 0x001, 0x001, 0x001, 0x001, 0x002, + 0x002, 0x002, 0x002, 0x003, 0x003, 0x003, 0x004, 0x004, + 0x004, 0x005, 0x005, 0x005, 0x006, 0x006, 0x007, 0x007, + 0x007, 0x008, 0x008, 0x009, 0x009, 0x00a, 0x00a, 0x00b, + 0x00c, 0x00c, 0x00d, 0x00d, 0x00e, 0x00f, 0x00f, 0x010, + 0x011, 0x011, 0x012, 0x013, 0x014, 0x014, 0x015, 0x016, + 0x017, 0x017, 0x018, 0x019, 0x01a, 0x01b, 0x01c, 0x01d, + 0x01e, 0x01f, 0x020, 0x021, 0x022, 0x023, 0x024, 0x025, + 0x026, 0x027, 0x028, 0x029, 0x02a, 0x02b, 0x02d, 0x02e, + 0x02f, 0x030, 0x031, 0x033, 0x034, 0x035, 0x037, 0x038, + 0x039, 0x03b, 0x03c, 0x03e, 0x03f, 0x040, 0x042, 0x043, + 0x045, 0x046, 0x048, 0x04a, 0x04b, 0x04d, 0x04e, 0x050, + 0x052, 0x053, 0x055, 0x057, 0x059, 0x05b, 0x05c, 0x05e, + 0x060, 0x062, 0x064, 0x066, 0x068, 0x06a, 0x06c, 0x06e, + 0x070, 0x072, 0x074, 0x076, 0x078, 0x07a, 0x07d, 0x07f, + 0x081, 0x083, 0x086, 0x088, 0x08a, 0x08d, 0x08f, 0x092, + 0x094, 0x097, 0x099, 0x09c, 0x09f, 0x0a1, 0x0a4, 0x0a7, + 0x0a9, 0x0ac, 0x0af, 0x0b2, 0x0b5, 0x0b8, 0x0bb, 0x0be, + 0x0c1, 0x0c4, 0x0c7, 0x0ca, 0x0cd, 0x0d1, 0x0d4, 0x0d7, + 0x0db, 0x0de, 0x0e2, 0x0e5, 0x0e9, 0x0ec, 0x0f0, 0x0f4, + 0x0f8, 0x0fb, 0x0ff, 0x103, 0x107, 0x10b, 0x10f, 0x114, + 0x118, 0x11c, 0x121, 0x125, 0x129, 0x12e, 0x133, 0x137, + 0x13c, 0x141, 0x146, 0x14b, 0x150, 0x155, 0x15b, 0x160, + 0x166, 0x16b, 0x171, 0x177, 0x17c, 0x182, 0x188, 0x18f, + 0x195, 0x19b, 0x1a2, 0x1a9, 0x1b0, 0x1b7, 0x1be, 0x1c5, + 0x1cd, 0x1d4, 0x1dc, 0x1e4, 0x1ec, 0x1f5, 0x1fd, 0x206, + 0x20f, 0x218, 0x222, 0x22c, 0x236, 0x240, 0x24b, 0x256, + 0x261, 0x26d, 0x279, 0x286, 0x293, 0x2a0, 0x2af, 0x2bd, + 0x2cd, 0x2dc, 0x2ed, 0x2ff, 0x311, 0x324, 0x339, 0x34e, + 0x365, 0x37e, 0x398, 0x3b5, 0x3d3, 0x3f5, 0x41a, 0x443, + 0x471, 0x4a6, 0x4e4, 0x52e, 0x58b, 0x607, 0x6c3, 0x859 +}; + +/* + * exp table + */ + +static const Bit16u exprom[256] = { + 0xff4, 0xfea, 0xfde, 0xfd4, 0xfc8, 0xfbe, 0xfb4, 0xfa8, + 0xf9e, 0xf92, 0xf88, 0xf7e, 0xf72, 0xf68, 0xf5c, 0xf52, + 0xf48, 0xf3e, 0xf32, 0xf28, 0xf1e, 0xf14, 0xf08, 0xefe, + 0xef4, 0xeea, 0xee0, 0xed4, 0xeca, 0xec0, 0xeb6, 0xeac, + 0xea2, 0xe98, 0xe8e, 0xe84, 0xe7a, 0xe70, 0xe66, 0xe5c, + 0xe52, 0xe48, 0xe3e, 0xe34, 0xe2a, 0xe20, 0xe16, 0xe0c, + 0xe04, 0xdfa, 0xdf0, 0xde6, 0xddc, 0xdd2, 0xdca, 0xdc0, + 0xdb6, 0xdac, 0xda4, 0xd9a, 0xd90, 0xd88, 0xd7e, 0xd74, + 0xd6a, 0xd62, 0xd58, 0xd50, 0xd46, 0xd3c, 0xd34, 0xd2a, + 0xd22, 0xd18, 0xd10, 0xd06, 0xcfe, 0xcf4, 0xcec, 0xce2, + 0xcda, 0xcd0, 0xcc8, 0xcbe, 0xcb6, 0xcae, 0xca4, 0xc9c, + 0xc92, 0xc8a, 0xc82, 0xc78, 0xc70, 0xc68, 0xc60, 0xc56, + 0xc4e, 0xc46, 0xc3c, 0xc34, 0xc2c, 0xc24, 0xc1c, 0xc12, + 0xc0a, 0xc02, 0xbfa, 0xbf2, 0xbea, 0xbe0, 0xbd8, 0xbd0, + 0xbc8, 0xbc0, 0xbb8, 0xbb0, 0xba8, 0xba0, 0xb98, 0xb90, + 0xb88, 0xb80, 0xb78, 0xb70, 0xb68, 0xb60, 0xb58, 0xb50, + 0xb48, 0xb40, 0xb38, 0xb32, 0xb2a, 0xb22, 0xb1a, 0xb12, + 0xb0a, 0xb02, 0xafc, 0xaf4, 0xaec, 0xae4, 0xade, 0xad6, + 0xace, 0xac6, 0xac0, 0xab8, 0xab0, 0xaa8, 0xaa2, 0xa9a, + 0xa92, 0xa8c, 0xa84, 0xa7c, 0xa76, 0xa6e, 0xa68, 0xa60, + 0xa58, 0xa52, 0xa4a, 0xa44, 0xa3c, 0xa36, 0xa2e, 0xa28, + 0xa20, 0xa18, 0xa12, 0xa0c, 0xa04, 0x9fe, 0x9f6, 0x9f0, + 0x9e8, 0x9e2, 0x9da, 0x9d4, 0x9ce, 0x9c6, 0x9c0, 0x9b8, + 0x9b2, 0x9ac, 0x9a4, 0x99e, 0x998, 0x990, 0x98a, 0x984, + 0x97c, 0x976, 0x970, 0x96a, 0x962, 0x95c, 0x956, 0x950, + 0x948, 0x942, 0x93c, 0x936, 0x930, 0x928, 0x922, 0x91c, + 0x916, 0x910, 0x90a, 0x904, 0x8fc, 0x8f6, 0x8f0, 0x8ea, + 0x8e4, 0x8de, 0x8d8, 0x8d2, 0x8cc, 0x8c6, 0x8c0, 0x8ba, + 0x8b4, 0x8ae, 0x8a8, 0x8a2, 0x89c, 0x896, 0x890, 0x88a, + 0x884, 0x87e, 0x878, 0x872, 0x86c, 0x866, 0x860, 0x85a, + 0x854, 0x850, 0x84a, 0x844, 0x83e, 0x838, 0x832, 0x82c, + 0x828, 0x822, 0x81c, 0x816, 0x810, 0x80c, 0x806, 0x800 +}; + +/* + * freq mult table multiplied by 2 + * + * 1/2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 10, 12, 12, 15, 15 + */ + +static const Bit8u mt[16] = { + 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 20, 24, 24, 30, 30 +}; + +/* + * ksl table + */ + +static const Bit8u kslrom[16] = { + 0, 32, 40, 45, 48, 51, 53, 55, 56, 58, 59, 60, 61, 62, 63, 64 +}; + +static const Bit8u kslshift[4] = { + 8, 1, 2, 0 +}; + +/* + * envelope generator constants + */ + +static const Bit8u eg_incstep[3][4][8] = { + { + { 0, 0, 0, 0, 0, 0, 0, 0 }, + { 0, 0, 0, 0, 0, 0, 0, 0 }, + { 0, 0, 0, 0, 0, 0, 0, 0 }, + { 0, 0, 0, 0, 0, 0, 0, 0 } + }, + { + { 0, 1, 0, 1, 0, 1, 0, 1 }, + { 0, 1, 0, 1, 1, 1, 0, 1 }, + { 0, 1, 1, 1, 0, 1, 1, 1 }, + { 0, 1, 1, 1, 1, 1, 1, 1 } + }, + { + { 1, 1, 1, 1, 1, 1, 1, 1 }, + { 2, 2, 1, 1, 1, 1, 1, 1 }, + { 2, 2, 1, 1, 2, 2, 1, 1 }, + { 2, 2, 2, 2, 2, 2, 1, 1 } + } +}; + +static const Bit8u eg_incdesc[16] = { + 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2 +}; + +static const Bit8s eg_incsh[16] = { + 0, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0, -1, -2 +}; + +/* + * address decoding + */ + +static const Bit8s ad_slot[0x20] = { + 0, 1, 2, 3, 4, 5, -1, -1, 6, 7, 8, 9, 10, 11, -1, -1, + 12, 13, 14, 15, 16, 17, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1 +}; + +static const Bit8u ch_slot[18] = { + 0, 1, 2, 6, 7, 8, 12, 13, 14, 18, 19, 20, 24, 25, 26, 30, 31, 32 +}; + +/* + * Envelope generator + */ + +static void OPL3_EnvelopeGenOff(opl3_slot *slot); +static void OPL3_EnvelopeGenAttack(opl3_slot *slot); +static void OPL3_EnvelopeGenDecay(opl3_slot *slot); +static void OPL3_EnvelopeGenSustain(opl3_slot *slot); +static void OPL3_EnvelopeGenRelease(opl3_slot *slot); + +typedef void(*envelope_genfunc)(opl3_slot *slot); + +envelope_genfunc envelope_gen[5] = { + OPL3_EnvelopeGenOff, + OPL3_EnvelopeGenAttack, + OPL3_EnvelopeGenDecay, + OPL3_EnvelopeGenSustain, + OPL3_EnvelopeGenRelease +}; + +enum envelope_gen_num +{ + envelope_gen_num_off = 0, + envelope_gen_num_attack = 1, + envelope_gen_num_decay = 2, + envelope_gen_num_sustain = 3, + envelope_gen_num_release = 4 +}; + +static Bit8u OPL3_EnvelopeCalcRate(opl3_slot *slot, Bit8u reg_rate) +{ + Bit8u rate; + if (reg_rate == 0x00) + { + return 0x00; + } + rate = (reg_rate << 2) + + (slot->reg_ksr ? slot->channel->ksv : (slot->channel->ksv >> 2)); + if (rate > 0x3c) + { + rate = 0x3c; + } + return rate; +} + +static void OPL3_EnvelopeUpdateKSL(opl3_slot *slot) +{ + Bit16s ksl = (kslrom[slot->channel->f_num >> 6] << 2) + - ((0x08 - slot->channel->block) << 5); + if (ksl < 0) + { + ksl = 0; + } + slot->eg_ksl = (Bit8u)ksl; +} + +static void OPL3_EnvelopeUpdateRate(opl3_slot *slot) +{ + switch (slot->eg_gen) + { + case envelope_gen_num_off: + case envelope_gen_num_attack: + slot->eg_rate = OPL3_EnvelopeCalcRate(slot, slot->reg_ar); + break; + case envelope_gen_num_decay: + slot->eg_rate = OPL3_EnvelopeCalcRate(slot, slot->reg_dr); + break; + case envelope_gen_num_sustain: + case envelope_gen_num_release: + slot->eg_rate = OPL3_EnvelopeCalcRate(slot, slot->reg_rr); + break; + } +} + +static void OPL3_EnvelopeGenOff(opl3_slot *slot) +{ + slot->eg_rout = 0x1ff; +} + +static void OPL3_EnvelopeGenAttack(opl3_slot *slot) +{ + if (slot->eg_rout == 0x00) + { + slot->eg_gen = envelope_gen_num_decay; + OPL3_EnvelopeUpdateRate(slot); + return; + } + slot->eg_rout += ((~slot->eg_rout) * slot->eg_inc) >> 3; + if (slot->eg_rout < 0x00) + { + slot->eg_rout = 0x00; + } +} + +static void OPL3_EnvelopeGenDecay(opl3_slot *slot) +{ + if (slot->eg_rout >= slot->reg_sl << 4) + { + slot->eg_gen = envelope_gen_num_sustain; + OPL3_EnvelopeUpdateRate(slot); + return; + } + slot->eg_rout += slot->eg_inc; +} + +static void OPL3_EnvelopeGenSustain(opl3_slot *slot) +{ + if (!slot->reg_type) + { + OPL3_EnvelopeGenRelease(slot); + } +} + +static void OPL3_EnvelopeGenRelease(opl3_slot *slot) +{ + if (slot->eg_rout >= 0x1ff) + { + slot->eg_gen = envelope_gen_num_off; + slot->eg_rout = 0x1ff; + OPL3_EnvelopeUpdateRate(slot); + return; + } + slot->eg_rout += slot->eg_inc; +} + +static void OPL3_EnvelopeCalc(opl3_slot *slot) +{ + Bit8u rate_h, rate_l; + Bit8u inc = 0; + rate_h = slot->eg_rate >> 2; + rate_l = slot->eg_rate & 3; + if (eg_incsh[rate_h] > 0) + { + if ((slot->chip->timer & ((1 << eg_incsh[rate_h]) - 1)) == 0) + { + inc = eg_incstep[eg_incdesc[rate_h]][rate_l] + [((slot->chip->timer)>> eg_incsh[rate_h]) & 0x07]; + } + } + else + { + inc = eg_incstep[eg_incdesc[rate_h]][rate_l] + [slot->chip->timer & 0x07] << (-eg_incsh[rate_h]); + } + slot->eg_inc = inc; + slot->eg_out = slot->eg_rout + (slot->reg_tl << 2) + + (slot->eg_ksl >> kslshift[slot->reg_ksl]) + *slot->trem; + if (slot->eg_out > 0x1ff) /* TODO: Remove this if possible */ + { + slot->eg_out = 0x1ff; + } + slot->eg_out <<= 3; + + envelope_gen[slot->eg_gen](slot); +} + +static void OPL3_EnvelopeKeyOn(opl3_slot *slot, Bit8u type) +{ + if (!slot->key) + { + slot->eg_gen = envelope_gen_num_attack; + OPL3_EnvelopeUpdateRate(slot); + if ((slot->eg_rate >> 2) == 0x0f) + { + slot->eg_gen = envelope_gen_num_decay; + OPL3_EnvelopeUpdateRate(slot); + slot->eg_rout = 0x00; + } + slot->pg_phase = 0x00; + } + slot->key |= type; +} + +static void OPL3_EnvelopeKeyOff(opl3_slot *slot, Bit8u type) +{ + if (slot->key) + { + slot->key &= (~type); + if (!slot->key) + { + slot->eg_gen = envelope_gen_num_release; + OPL3_EnvelopeUpdateRate(slot); + } + } +} + +/* + * Phase Generator + */ + +static void OPL3_PhaseGenerate(opl3_slot *slot) +{ + Bit16u f_num; + Bit32u basefreq; + + f_num = slot->channel->f_num; + if (slot->reg_vib) + { + Bit8s range; + Bit8u vibpos; + + range = (f_num >> 7) & 7; + vibpos = slot->chip->vibpos; + + if (!(vibpos & 3)) + { + range = 0; + } + else if (vibpos & 1) + { + range >>= 1; + } + range >>= slot->chip->vibshift; + + if (vibpos & 4) + { + range = -range; + } + f_num += range; + } + basefreq = (f_num << slot->channel->block) >> 1; + slot->pg_phase += (basefreq * mt[slot->reg_mult]) >> 1; +} + +/* + * Noise Generator + */ + +static void OPL3_NoiseGenerate(opl3_chip *chip) +{ + if (chip->noise & 0x01) + { + chip->noise ^= 0x800302; + } + chip->noise >>= 1; +} + +/* + * Slot + */ + +static void OPL3_SlotWrite20(opl3_slot *slot, Bit8u data) +{ + if ((data >> 7) & 0x01) + { + slot->trem = &slot->chip->tremolo; + } + else + { + slot->trem = (Bit8u*)&slot->chip->zeromod; + } + slot->reg_vib = (data >> 6) & 0x01; + slot->reg_type = (data >> 5) & 0x01; + slot->reg_ksr = (data >> 4) & 0x01; + slot->reg_mult = data & 0x0f; + OPL3_EnvelopeUpdateRate(slot); +} + +static void OPL3_SlotWrite40(opl3_slot *slot, Bit8u data) +{ + slot->reg_ksl = (data >> 6) & 0x03; + slot->reg_tl = data & 0x3f; + OPL3_EnvelopeUpdateKSL(slot); +} + +static void OPL3_SlotWrite60(opl3_slot *slot, Bit8u data) +{ + slot->reg_ar = (data >> 4) & 0x0f; + slot->reg_dr = data & 0x0f; + OPL3_EnvelopeUpdateRate(slot); +} + +static void OPL3_SlotWrite80(opl3_slot *slot, Bit8u data) +{ + slot->reg_sl = (data >> 4) & 0x0f; + if (slot->reg_sl == 0x0f) + { + slot->reg_sl = 0x1f; + } + slot->reg_rr = data & 0x0f; + OPL3_EnvelopeUpdateRate(slot); +} + +static void OPL3_SlotWriteE0(opl3_slot *slot, Bit8u data) +{ + slot->reg_wf = data & 0x07; + if (slot->chip->newm == 0x00) + { + slot->reg_wf &= 0x03; + } + + switch (slot->reg_wf) + { + case 1: + case 4: + case 5: + slot->maskzero = 0x200; + break; + case 3: + slot->maskzero = 0x100; + break; + default: + slot->maskzero = 0; + break; + } + + switch (slot->reg_wf) + { + case 4: + slot->signpos = (31-8); /* sigext of (phase & 0x100) */ + break; + case 0: + case 6: + case 7: + slot->signpos = (31-9); /* sigext of (phase & 0x200) */ + break; + default: + slot->signpos = (31-16); /* set "neg" to zero */ + break; + } + + switch (slot->reg_wf) + { + case 4: + case 5: + slot->phaseshift = 1; + break; + case 6: + slot->phaseshift = 16; /* set phase to zero and flag for non-sin wave */ + break; + case 7: + slot->phaseshift = 32; /* no shift (work by mod 32), but flag for non-sin wave */ + break; + default: + slot->phaseshift = 0; + break; + } +} + +static void OPL3_SlotGeneratePhase(opl3_slot *slot, Bit16u phase) +{ + Bit32u neg, level; + Bit8u phaseshift; + + /* Fast paths for mute segments */ + if (phase & slot->maskzero) + { + slot->out = 0; + return; + } + + neg = (Bit32s)((Bit32u)phase << slot->signpos) >> 31; + phaseshift = slot->phaseshift; + level = slot->eg_out; + + phase <<= phaseshift; + if (phaseshift <= 1) + { + level += logsinrom[phase & 0x1ff]; + } + else + { + level += ((phase ^ neg) & 0x3ff) << 3; + } + slot->out = exprom[level & 0xff] >> (level >> 8) ^ neg; +} + +static void OPL3_SlotGenerate(opl3_slot *slot) +{ + OPL3_SlotGeneratePhase(slot, (Bit16u)(slot->pg_phase >> 9) + *slot->mod); +} + +static void OPL3_SlotGenerateZM(opl3_slot *slot) +{ + OPL3_SlotGeneratePhase(slot, (Bit16u)(slot->pg_phase >> 9)); +} + +static void OPL3_SlotCalcFB(opl3_slot *slot) +{ + if (slot->channel->fb != 0x00) + { + slot->fbmod = (slot->prout + slot->out) >> (0x09 - slot->channel->fb); + } + else + { + slot->fbmod = 0; + } + slot->prout = slot->out; +} + +/* + * Channel + */ + +static void OPL3_ChannelSetupAlg(opl3_channel *channel); + +static void OPL3_ChannelUpdateRhythm(opl3_chip *chip, Bit8u data) +{ + opl3_channel *channel6; + opl3_channel *channel7; + opl3_channel *channel8; + Bit8u chnum; + + chip->rhy = data & 0x3f; + if (chip->rhy & 0x20) + { + channel6 = &chip->channel[6]; + channel7 = &chip->channel[7]; + channel8 = &chip->channel[8]; + channel6->out[0] = &channel6->slots[1]->out; + channel6->out[1] = &channel6->slots[1]->out; + channel6->out[2] = &chip->zeromod; + channel6->out[3] = &chip->zeromod; + channel7->out[0] = &channel7->slots[0]->out; + channel7->out[1] = &channel7->slots[0]->out; + channel7->out[2] = &channel7->slots[1]->out; + channel7->out[3] = &channel7->slots[1]->out; + channel8->out[0] = &channel8->slots[0]->out; + channel8->out[1] = &channel8->slots[0]->out; + channel8->out[2] = &channel8->slots[1]->out; + channel8->out[3] = &channel8->slots[1]->out; + for (chnum = 6; chnum < 9; chnum++) + { + chip->channel[chnum].chtype = ch_drum; + } + OPL3_ChannelSetupAlg(channel6); + /*hh*/ + if (chip->rhy & 0x01) + { + OPL3_EnvelopeKeyOn(channel7->slots[0], egk_drum); + } + else + { + OPL3_EnvelopeKeyOff(channel7->slots[0], egk_drum); + } + /*tc*/ + if (chip->rhy & 0x02) + { + OPL3_EnvelopeKeyOn(channel8->slots[1], egk_drum); + } + else + { + OPL3_EnvelopeKeyOff(channel8->slots[1], egk_drum); + } + /*tom*/ + if (chip->rhy & 0x04) + { + OPL3_EnvelopeKeyOn(channel8->slots[0], egk_drum); + } + else + { + OPL3_EnvelopeKeyOff(channel8->slots[0], egk_drum); + } + /*sd*/ + if (chip->rhy & 0x08) + { + OPL3_EnvelopeKeyOn(channel7->slots[1], egk_drum); + } + else + { + OPL3_EnvelopeKeyOff(channel7->slots[1], egk_drum); + } + /*bd*/ + if (chip->rhy & 0x10) + { + OPL3_EnvelopeKeyOn(channel6->slots[0], egk_drum); + OPL3_EnvelopeKeyOn(channel6->slots[1], egk_drum); + } + else + { + OPL3_EnvelopeKeyOff(channel6->slots[0], egk_drum); + OPL3_EnvelopeKeyOff(channel6->slots[1], egk_drum); + } + } + else + { + for (chnum = 6; chnum < 9; chnum++) + { + chip->channel[chnum].chtype = ch_2op; + OPL3_ChannelSetupAlg(&chip->channel[chnum]); + OPL3_EnvelopeKeyOff(chip->channel[chnum].slots[0], egk_drum); + OPL3_EnvelopeKeyOff(chip->channel[chnum].slots[1], egk_drum); + } + } +} + +static void OPL3_ChannelWriteA0(opl3_channel *channel, Bit8u data) +{ + if (channel->chip->newm && channel->chtype == ch_4op2) + { + return; + } + channel->f_num = (channel->f_num & 0x300) | data; + channel->ksv = (channel->block << 1) + | ((channel->f_num >> (0x09 - channel->chip->nts)) & 0x01); + OPL3_EnvelopeUpdateKSL(channel->slots[0]); + OPL3_EnvelopeUpdateKSL(channel->slots[1]); + OPL3_EnvelopeUpdateRate(channel->slots[0]); + OPL3_EnvelopeUpdateRate(channel->slots[1]); + if (channel->chip->newm && channel->chtype == ch_4op) + { + channel->pair->f_num = channel->f_num; + channel->pair->ksv = channel->ksv; + OPL3_EnvelopeUpdateKSL(channel->pair->slots[0]); + OPL3_EnvelopeUpdateKSL(channel->pair->slots[1]); + OPL3_EnvelopeUpdateRate(channel->pair->slots[0]); + OPL3_EnvelopeUpdateRate(channel->pair->slots[1]); + } +} + +static void OPL3_ChannelWriteB0(opl3_channel *channel, Bit8u data) +{ + if (channel->chip->newm && channel->chtype == ch_4op2) + { + return; + } + channel->f_num = (channel->f_num & 0xff) | ((data & 0x03) << 8); + channel->block = (data >> 2) & 0x07; + channel->ksv = (channel->block << 1) + | ((channel->f_num >> (0x09 - channel->chip->nts)) & 0x01); + OPL3_EnvelopeUpdateKSL(channel->slots[0]); + OPL3_EnvelopeUpdateKSL(channel->slots[1]); + OPL3_EnvelopeUpdateRate(channel->slots[0]); + OPL3_EnvelopeUpdateRate(channel->slots[1]); + if (channel->chip->newm && channel->chtype == ch_4op) + { + channel->pair->f_num = channel->f_num; + channel->pair->block = channel->block; + channel->pair->ksv = channel->ksv; + OPL3_EnvelopeUpdateKSL(channel->pair->slots[0]); + OPL3_EnvelopeUpdateKSL(channel->pair->slots[1]); + OPL3_EnvelopeUpdateRate(channel->pair->slots[0]); + OPL3_EnvelopeUpdateRate(channel->pair->slots[1]); + } +} + +static void OPL3_ChannelSetupAlg(opl3_channel *channel) +{ + if (channel->chtype == ch_drum) + { + switch (channel->alg & 0x01) + { + case 0x00: + channel->slots[0]->mod = &channel->slots[0]->fbmod; + channel->slots[1]->mod = &channel->slots[0]->out; + break; + case 0x01: + channel->slots[0]->mod = &channel->slots[0]->fbmod; + channel->slots[1]->mod = &channel->chip->zeromod; + break; + } + return; + } + if (channel->alg & 0x08) + { + return; + } + if (channel->alg & 0x04) + { + channel->pair->out[0] = &channel->chip->zeromod; + channel->pair->out[1] = &channel->chip->zeromod; + channel->pair->out[2] = &channel->chip->zeromod; + channel->pair->out[3] = &channel->chip->zeromod; + switch (channel->alg & 0x03) + { + case 0x00: + channel->pair->slots[0]->mod = &channel->pair->slots[0]->fbmod; + channel->pair->slots[1]->mod = &channel->pair->slots[0]->out; + channel->slots[0]->mod = &channel->pair->slots[1]->out; + channel->slots[1]->mod = &channel->slots[0]->out; + channel->out[0] = &channel->slots[1]->out; + channel->out[1] = &channel->chip->zeromod; + channel->out[2] = &channel->chip->zeromod; + channel->out[3] = &channel->chip->zeromod; + break; + case 0x01: + channel->pair->slots[0]->mod = &channel->pair->slots[0]->fbmod; + channel->pair->slots[1]->mod = &channel->pair->slots[0]->out; + channel->slots[0]->mod = &channel->chip->zeromod; + channel->slots[1]->mod = &channel->slots[0]->out; + channel->out[0] = &channel->pair->slots[1]->out; + channel->out[1] = &channel->slots[1]->out; + channel->out[2] = &channel->chip->zeromod; + channel->out[3] = &channel->chip->zeromod; + break; + case 0x02: + channel->pair->slots[0]->mod = &channel->pair->slots[0]->fbmod; + channel->pair->slots[1]->mod = &channel->chip->zeromod; + channel->slots[0]->mod = &channel->pair->slots[1]->out; + channel->slots[1]->mod = &channel->slots[0]->out; + channel->out[0] = &channel->pair->slots[0]->out; + channel->out[1] = &channel->slots[1]->out; + channel->out[2] = &channel->chip->zeromod; + channel->out[3] = &channel->chip->zeromod; + break; + case 0x03: + channel->pair->slots[0]->mod = &channel->pair->slots[0]->fbmod; + channel->pair->slots[1]->mod = &channel->chip->zeromod; + channel->slots[0]->mod = &channel->pair->slots[1]->out; + channel->slots[1]->mod = &channel->chip->zeromod; + channel->out[0] = &channel->pair->slots[0]->out; + channel->out[1] = &channel->slots[0]->out; + channel->out[2] = &channel->slots[1]->out; + channel->out[3] = &channel->chip->zeromod; + break; + } + } + else + { + switch (channel->alg & 0x01) + { + case 0x00: + channel->slots[0]->mod = &channel->slots[0]->fbmod; + channel->slots[1]->mod = &channel->slots[0]->out; + channel->out[0] = &channel->slots[1]->out; + channel->out[1] = &channel->chip->zeromod; + channel->out[2] = &channel->chip->zeromod; + channel->out[3] = &channel->chip->zeromod; + break; + case 0x01: + channel->slots[0]->mod = &channel->slots[0]->fbmod; + channel->slots[1]->mod = &channel->chip->zeromod; + channel->out[0] = &channel->slots[0]->out; + channel->out[1] = &channel->slots[1]->out; + channel->out[2] = &channel->chip->zeromod; + channel->out[3] = &channel->chip->zeromod; + break; + } + } +} + +static void OPL3_ChannelWriteC0(opl3_channel *channel, Bit8u data) +{ + channel->fb = (data & 0x0e) >> 1; + channel->con = data & 0x01; + channel->alg = channel->con; + if (channel->chip->newm) + { + if (channel->chtype == ch_4op) + { + channel->pair->alg = 0x04 | (channel->con << 1) | (channel->pair->con); + channel->alg = 0x08; + OPL3_ChannelSetupAlg(channel->pair); + } + else if (channel->chtype == ch_4op2) + { + channel->alg = 0x04 | (channel->pair->con << 1) | (channel->con); + channel->pair->alg = 0x08; + OPL3_ChannelSetupAlg(channel); + } + else + { + OPL3_ChannelSetupAlg(channel); + } + } + else + { + OPL3_ChannelSetupAlg(channel); + } + if (channel->chip->newm) + { + channel->cha = ((data >> 4) & 0x01) ? ~0 : 0; + channel->chb = ((data >> 5) & 0x01) ? ~0 : 0; + } + else + { + channel->cha = channel->chb = ~0; + } +} + +static void OPL3_ChannelKeyOn(opl3_channel *channel) +{ + if (channel->chip->newm) + { + if (channel->chtype == ch_4op) + { + OPL3_EnvelopeKeyOn(channel->slots[0], egk_norm); + OPL3_EnvelopeKeyOn(channel->slots[1], egk_norm); + OPL3_EnvelopeKeyOn(channel->pair->slots[0], egk_norm); + OPL3_EnvelopeKeyOn(channel->pair->slots[1], egk_norm); + } + else if (channel->chtype == ch_2op || channel->chtype == ch_drum) + { + OPL3_EnvelopeKeyOn(channel->slots[0], egk_norm); + OPL3_EnvelopeKeyOn(channel->slots[1], egk_norm); + } + } + else + { + OPL3_EnvelopeKeyOn(channel->slots[0], egk_norm); + OPL3_EnvelopeKeyOn(channel->slots[1], egk_norm); + } +} + +static void OPL3_ChannelKeyOff(opl3_channel *channel) +{ + if (channel->chip->newm) + { + if (channel->chtype == ch_4op) + { + OPL3_EnvelopeKeyOff(channel->slots[0], egk_norm); + OPL3_EnvelopeKeyOff(channel->slots[1], egk_norm); + OPL3_EnvelopeKeyOff(channel->pair->slots[0], egk_norm); + OPL3_EnvelopeKeyOff(channel->pair->slots[1], egk_norm); + } + else if (channel->chtype == ch_2op || channel->chtype == ch_drum) + { + OPL3_EnvelopeKeyOff(channel->slots[0], egk_norm); + OPL3_EnvelopeKeyOff(channel->slots[1], egk_norm); + } + } + else + { + OPL3_EnvelopeKeyOff(channel->slots[0], egk_norm); + OPL3_EnvelopeKeyOff(channel->slots[1], egk_norm); + } +} + +static void OPL3_ChannelSet4Op(opl3_chip *chip, Bit8u data) +{ + Bit8u bit; + Bit8u chnum; + for (bit = 0; bit < 6; bit++) + { + chnum = bit; + if (bit >= 3) + { + chnum += 9 - 3; + } + if ((data >> bit) & 0x01) + { + chip->channel[chnum].chtype = ch_4op; + chip->channel[chnum + 3].chtype = ch_4op2; + } + else + { + chip->channel[chnum].chtype = ch_2op; + chip->channel[chnum + 3].chtype = ch_2op; + } + } +} + +static Bit16s OPL3_ClipSample(Bit32s sample) +{ + if (sample > 32767) + { + sample = 32767; + } + else if (sample < -32768) + { + sample = -32768; + } + return (Bit16s)sample; +} + +static void OPL3_GenerateRhythm1(opl3_chip *chip) +{ + opl3_channel *channel6; + opl3_channel *channel7; + opl3_channel *channel8; + Bit16u phase14; + Bit16u phase17; + Bit16u phase; + Bit16u phasebit; + + channel6 = &chip->channel[6]; + channel7 = &chip->channel[7]; + channel8 = &chip->channel[8]; + OPL3_SlotGenerate(channel6->slots[0]); + phase14 = (channel7->slots[0]->pg_phase >> 9) & 0x3ff; + phase17 = (channel8->slots[1]->pg_phase >> 9) & 0x3ff; + phase = 0x00; + /*hh tc phase bit*/ + phasebit = ((phase14 & 0x08) | (((phase14 >> 5) ^ phase14) & 0x04) + | (((phase17 >> 2) ^ phase17) & 0x08)) ? 0x01 : 0x00; + /*hh*/ + phase = (phasebit << 9) + | (0x34 << ((phasebit ^ (chip->noise & 0x01)) << 1)); + OPL3_SlotGeneratePhase(channel7->slots[0], phase); + /*tt*/ + OPL3_SlotGenerateZM(channel8->slots[0]); +} + +static void OPL3_GenerateRhythm2(opl3_chip *chip) +{ + opl3_channel *channel6; + opl3_channel *channel7; + opl3_channel *channel8; + Bit16u phase14; + Bit16u phase17; + Bit16u phase; + Bit16u phasebit; + + channel6 = &chip->channel[6]; + channel7 = &chip->channel[7]; + channel8 = &chip->channel[8]; + OPL3_SlotGenerate(channel6->slots[1]); + phase14 = (channel7->slots[0]->pg_phase >> 9) & 0x3ff; + phase17 = (channel8->slots[1]->pg_phase >> 9) & 0x3ff; + phase = 0x00; + /*hh tc phase bit*/ + phasebit = ((phase14 & 0x08) | (((phase14 >> 5) ^ phase14) & 0x04) + | (((phase17 >> 2) ^ phase17) & 0x08)) ? 0x01 : 0x00; + /*sd*/ + phase = (0x100 << ((phase14 >> 8) & 0x01)) ^ ((chip->noise & 0x01) << 8); + OPL3_SlotGeneratePhase(channel7->slots[1], phase); + /*tc*/ + phase = 0x100 | (phasebit << 9); + OPL3_SlotGeneratePhase(channel8->slots[1], phase); +} + +void OPL3v17_Generate(opl3_chip *chip, Bit16s *buf) +{ + Bit8u ii; + Bit8u jj; + Bit16s accm; + + buf[1] = OPL3_ClipSample(chip->mixbuff[1]); + + for (ii = 0; ii < 12; ii++) + { + OPL3_SlotCalcFB(&chip->chipslot[ii]); + OPL3_PhaseGenerate(&chip->chipslot[ii]); + OPL3_EnvelopeCalc(&chip->chipslot[ii]); + OPL3_SlotGenerate(&chip->chipslot[ii]); + } + + for (ii = 12; ii < 15; ii++) + { + OPL3_SlotCalcFB(&chip->chipslot[ii]); + OPL3_PhaseGenerate(&chip->chipslot[ii]); + OPL3_EnvelopeCalc(&chip->chipslot[ii]); + } + + if (chip->rhy & 0x20) + { + OPL3_GenerateRhythm1(chip); + } + else + { + OPL3_SlotGenerate(&chip->chipslot[12]); + OPL3_SlotGenerate(&chip->chipslot[13]); + OPL3_SlotGenerate(&chip->chipslot[14]); + } + + chip->mixbuff[0] = 0; + for (ii = 0; ii < 18; ii++) + { + accm = 0; + for (jj = 0; jj < 4; jj++) + { + accm += *chip->channel[ii].out[jj]; + } + chip->mixbuff[0] += (Bit16s)(accm & chip->channel[ii].cha); + } + + for (ii = 15; ii < 18; ii++) + { + OPL3_SlotCalcFB(&chip->chipslot[ii]); + OPL3_PhaseGenerate(&chip->chipslot[ii]); + OPL3_EnvelopeCalc(&chip->chipslot[ii]); + } + + if (chip->rhy & 0x20) + { + OPL3_GenerateRhythm2(chip); + } + else + { + OPL3_SlotGenerate(&chip->chipslot[15]); + OPL3_SlotGenerate(&chip->chipslot[16]); + OPL3_SlotGenerate(&chip->chipslot[17]); + } + + buf[0] = OPL3_ClipSample(chip->mixbuff[0]); + + for (ii = 18; ii < 33; ii++) + { + OPL3_SlotCalcFB(&chip->chipslot[ii]); + OPL3_PhaseGenerate(&chip->chipslot[ii]); + OPL3_EnvelopeCalc(&chip->chipslot[ii]); + OPL3_SlotGenerate(&chip->chipslot[ii]); + } + + chip->mixbuff[1] = 0; + for (ii = 0; ii < 18; ii++) + { + accm = 0; + for (jj = 0; jj < 4; jj++) + { + accm += *chip->channel[ii].out[jj]; + } + chip->mixbuff[1] += (Bit16s)(accm & chip->channel[ii].chb); + } + + for (ii = 33; ii < 36; ii++) + { + OPL3_SlotCalcFB(&chip->chipslot[ii]); + OPL3_PhaseGenerate(&chip->chipslot[ii]); + OPL3_EnvelopeCalc(&chip->chipslot[ii]); + OPL3_SlotGenerate(&chip->chipslot[ii]); + } + + OPL3_NoiseGenerate(chip); + + if ((chip->timer & 0x3f) == 0x3f) + { + chip->tremolopos = (chip->tremolopos + 1) % 210; + } + if (chip->tremolopos < 105) + { + chip->tremolo = chip->tremolopos >> chip->tremoloshift; + } + else + { + chip->tremolo = (210 - chip->tremolopos) >> chip->tremoloshift; + } + + if ((chip->timer & 0x3ff) == 0x3ff) + { + chip->vibpos = (chip->vibpos + 1) & 7; + } + + chip->timer++; + + while (chip->writebuf[chip->writebuf_cur].time <= chip->writebuf_samplecnt) + { + if (!(chip->writebuf[chip->writebuf_cur].reg & 0x200)) + { + break; + } + chip->writebuf[chip->writebuf_cur].reg &= 0x1ff; + OPL3v17_WriteReg(chip, chip->writebuf[chip->writebuf_cur].reg, + chip->writebuf[chip->writebuf_cur].data); + chip->writebuf_cur = (chip->writebuf_cur + 1) % OPL_WRITEBUF_SIZE; + } + chip->writebuf_samplecnt++; +} + +void OPL3v17_GenerateResampled(opl3_chip *chip, Bit16s *buf) +{ + while (chip->samplecnt >= chip->rateratio) + { + chip->oldsamples[0] = chip->samples[0]; + chip->oldsamples[1] = chip->samples[1]; + OPL3v17_Generate(chip, chip->samples); + chip->samplecnt -= chip->rateratio; + } + buf[0] = (Bit16s)((chip->oldsamples[0] * (chip->rateratio - chip->samplecnt) + + chip->samples[0] * chip->samplecnt) / chip->rateratio); + buf[1] = (Bit16s)((chip->oldsamples[1] * (chip->rateratio - chip->samplecnt) + + chip->samples[1] * chip->samplecnt) / chip->rateratio); + chip->samplecnt += 1 << RSM_FRAC; +} + +void OPL3v17_Reset(opl3_chip *chip, Bit32u samplerate) +{ + Bit8u slotnum; + Bit8u channum; + + memset(chip, 0, sizeof(opl3_chip)); + for (slotnum = 0; slotnum < 36; slotnum++) + { + chip->chipslot[slotnum].chip = chip; + chip->chipslot[slotnum].mod = &chip->zeromod; + chip->chipslot[slotnum].eg_rout = 0x1ff; + chip->chipslot[slotnum].eg_out = 0x1ff << 3; + chip->chipslot[slotnum].eg_gen = envelope_gen_num_off; + chip->chipslot[slotnum].trem = (Bit8u*)&chip->zeromod; + chip->chipslot[slotnum].signpos = (31-9); /* for wf=0 need use sigext of (phase & 0x200) */ + } + for (channum = 0; channum < 18; channum++) + { + chip->channel[channum].slots[0] = &chip->chipslot[ch_slot[channum]]; + chip->channel[channum].slots[1] = &chip->chipslot[ch_slot[channum] + 3]; + chip->chipslot[ch_slot[channum]].channel = &chip->channel[channum]; + chip->chipslot[ch_slot[channum] + 3].channel = &chip->channel[channum]; + if ((channum % 9) < 3) + { + chip->channel[channum].pair = &chip->channel[channum + 3]; + } + else if ((channum % 9) < 6) + { + chip->channel[channum].pair = &chip->channel[channum - 3]; + } + chip->channel[channum].chip = chip; + chip->channel[channum].out[0] = &chip->zeromod; + chip->channel[channum].out[1] = &chip->zeromod; + chip->channel[channum].out[2] = &chip->zeromod; + chip->channel[channum].out[3] = &chip->zeromod; + chip->channel[channum].chtype = ch_2op; + chip->channel[channum].cha = ~0; + chip->channel[channum].chb = ~0; + OPL3_ChannelSetupAlg(&chip->channel[channum]); + } + chip->noise = 0x306600; + chip->rateratio = (samplerate << RSM_FRAC) / 49716; + chip->tremoloshift = 4; + chip->vibshift = 1; +} + +void OPL3v17_WriteReg(opl3_chip *chip, Bit16u reg, Bit8u v) +{ + Bit8u high = (reg >> 8) & 0x01; + Bit8u regm = reg & 0xff; + switch (regm & 0xf0) + { + case 0x00: + if (high) + { + switch (regm & 0x0f) + { + case 0x04: + OPL3_ChannelSet4Op(chip, v); + break; + case 0x05: + chip->newm = v & 0x01; + break; + } + } + else + { + switch (regm & 0x0f) + { + case 0x08: + chip->nts = (v >> 6) & 0x01; + break; + } + } + break; + case 0x20: + case 0x30: + if (ad_slot[regm & 0x1f] >= 0) + { + OPL3_SlotWrite20(&chip->chipslot[18 * high + ad_slot[regm & 0x1f]], v); + } + break; + case 0x40: + case 0x50: + if (ad_slot[regm & 0x1f] >= 0) + { + OPL3_SlotWrite40(&chip->chipslot[18 * high + ad_slot[regm & 0x1f]], v); + } + break; + case 0x60: + case 0x70: + if (ad_slot[regm & 0x1f] >= 0) + { + OPL3_SlotWrite60(&chip->chipslot[18 * high + ad_slot[regm & 0x1f]], v); + } + break; + case 0x80: + case 0x90: + if (ad_slot[regm & 0x1f] >= 0) + { + OPL3_SlotWrite80(&chip->chipslot[18 * high + ad_slot[regm & 0x1f]], v); + } + break; + case 0xe0: + case 0xf0: + if (ad_slot[regm & 0x1f] >= 0) + { + OPL3_SlotWriteE0(&chip->chipslot[18 * high + ad_slot[regm & 0x1f]], v); + } + break; + case 0xa0: + if ((regm & 0x0f) < 9) + { + OPL3_ChannelWriteA0(&chip->channel[9 * high + (regm & 0x0f)], v); + } + break; + case 0xb0: + if (regm == 0xbd && !high) + { + chip->tremoloshift = (((v >> 7) ^ 1) << 1) + 2; + chip->vibshift = ((v >> 6) & 0x01) ^ 1; + OPL3_ChannelUpdateRhythm(chip, v); + } + else if ((regm & 0x0f) < 9) + { + OPL3_ChannelWriteB0(&chip->channel[9 * high + (regm & 0x0f)], v); + if (v & 0x20) + { + OPL3_ChannelKeyOn(&chip->channel[9 * high + (regm & 0x0f)]); + } + else + { + OPL3_ChannelKeyOff(&chip->channel[9 * high + (regm & 0x0f)]); + } + } + break; + case 0xc0: + if ((regm & 0x0f) < 9) + { + OPL3_ChannelWriteC0(&chip->channel[9 * high + (regm & 0x0f)], v); + } + break; + } +} + +void OPL3v17_WriteRegBuffered(opl3_chip *chip, Bit16u reg, Bit8u v) +{ + Bit64u time1, time2; + + if (chip->writebuf[chip->writebuf_last].reg & 0x200) + { + OPL3v17_WriteReg(chip, chip->writebuf[chip->writebuf_last].reg & 0x1ff, + chip->writebuf[chip->writebuf_last].data); + + chip->writebuf_cur = (chip->writebuf_last + 1) % OPL_WRITEBUF_SIZE; + chip->writebuf_samplecnt = chip->writebuf[chip->writebuf_last].time; + } + + chip->writebuf[chip->writebuf_last].reg = reg | 0x200; + chip->writebuf[chip->writebuf_last].data = v; + time1 = chip->writebuf_lasttime + OPL_WRITEBUF_DELAY; + time2 = chip->writebuf_samplecnt; + + if (time1 < time2) + { + time1 = time2; + } + + chip->writebuf[chip->writebuf_last].time = time1; + chip->writebuf_lasttime = time1; + chip->writebuf_last = (chip->writebuf_last + 1) % OPL_WRITEBUF_SIZE; +} + +void OPL3v17_GenerateStream(opl3_chip *chip, Bit16s *sndptr, Bit32u numsamples) +{ + Bit32u i; + + for(i = 0; i < numsamples; i++) + { + OPL3v17_GenerateResampled(chip, sndptr); + sndptr += 2; + } +} + +#define OPL3_MIN(A, B) (((A) > (B)) ? (B) : (A)) +#define OPL3_MAX(A, B) (((A) < (B)) ? (B) : (A)) +#define OPL3_CLAMP(V, MIN, MAX) OPL3_MAX(OPL3_MIN(V, MAX), MIN) + +void OPL3v17_GenerateStreamMix(opl3_chip *chip, Bit16s *sndptr, Bit32u numsamples) +{ + Bit32u i; + Bit16s sample[2]; + Bit32s mix[2]; + + for(i = 0; i < numsamples; i++) + { + OPL3v17_GenerateResampled(chip, sample); + mix[0] = sndptr[0] + sample[0]; + mix[1] = sndptr[1] + sample[1]; + sndptr[0] = OPL3_CLAMP(mix[0], INT16_MIN, INT16_MAX); + sndptr[1] = OPL3_CLAMP(mix[1], INT16_MIN, INT16_MAX); + sndptr += 2; + } +} + diff --git a/src/chips/nuked/nukedopl3_174.h b/src/chips/nuked/nukedopl3_174.h new file mode 100644 index 0000000..43e4a6e --- /dev/null +++ b/src/chips/nuked/nukedopl3_174.h @@ -0,0 +1,154 @@ +/* + * Copyright (C) 2013-2016 Alexey Khokholov (Nuke.YKT) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library 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 + * Lesser 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. + * + * Nuked OPL3 emulator. + * Thanks: + * MAME Development Team(Jarek Burczynski, Tatsuyuki Satoh): + * Feedback and Rhythm part calculation information. + * forums.submarine.org.uk(carbon14, opl3): + * Tremolo and phase generator calculation information. + * OPLx decapsulated(Matthew Gambrell, Olli Niemitalo): + * OPL2 ROMs. + * + * version: 1.7.4 + */ + +#ifndef OPL_OPL3_H +#define OPL_OPL3_H + +#include <inttypes.h> +#include <stdint.h> + +#ifdef __cplusplus +extern "C" { +#endif + + +#define OPL_WRITEBUF_SIZE 1024 +#define OPL_WRITEBUF_DELAY 2 + +typedef uintptr_t Bitu; +typedef intptr_t Bits; +typedef uint64_t Bit64u; +typedef int64_t Bit64s; +typedef uint32_t Bit32u; +typedef int32_t Bit32s; +typedef uint16_t Bit16u; +typedef int16_t Bit16s; +typedef uint8_t Bit8u; +typedef int8_t Bit8s; + +typedef struct _opl3_slot opl3_slot; +typedef struct _opl3_channel opl3_channel; +typedef struct _opl3_chip opl3_chip; + +struct _opl3_slot { + opl3_channel *channel; + opl3_chip *chip; + Bit16s out; + Bit16s fbmod; + Bit16s *mod; + Bit16s prout; + Bit16s eg_rout; + Bit16s eg_out; + Bit8u eg_inc; + Bit8u eg_gen; + Bit8u eg_rate; + Bit8u eg_ksl; + Bit8u *trem; + Bit8u reg_vib; + Bit8u reg_type; + Bit8u reg_ksr; + Bit8u reg_mult; + Bit8u reg_ksl; + Bit8u reg_tl; + Bit8u reg_ar; + Bit8u reg_dr; + Bit8u reg_sl; + Bit8u reg_rr; + Bit8u reg_wf; + Bit8u key; + Bit32u pg_phase; + Bit32u timer; + + Bit16u maskzero; + Bit8u signpos; + Bit8u phaseshift; +}; + +struct _opl3_channel { + opl3_slot *slots[2]; + opl3_channel *pair; + opl3_chip *chip; + Bit16s *out[4]; + Bit8u chtype; + Bit16u f_num; + Bit8u block; + Bit8u fb; + Bit8u con; + Bit8u alg; + Bit8u ksv; + Bit16u cha, chb; +}; + +typedef struct _opl3_writebuf { + Bit64u time; + Bit16u reg; + Bit8u data; +} opl3_writebuf; + +struct _opl3_chip { + opl3_channel channel[18]; + opl3_slot chipslot[36]; + Bit16u timer; + Bit8u newm; + Bit8u nts; + Bit8u rhy; + Bit8u vibpos; + Bit8u vibshift; + Bit8u tremolo; + Bit8u tremolopos; + Bit8u tremoloshift; + Bit32u noise; + Bit16s zeromod; + Bit32s mixbuff[2]; + /* OPL3L */ + Bit32s rateratio; + Bit32s samplecnt; + Bit16s oldsamples[2]; + Bit16s samples[2]; + + Bit64u writebuf_samplecnt; + Bit32u writebuf_cur; + Bit32u writebuf_last; + Bit64u writebuf_lasttime; + opl3_writebuf writebuf[OPL_WRITEBUF_SIZE]; +}; + +void OPL3v17_Generate(opl3_chip *chip, Bit16s *buf); +void OPL3v17_GenerateResampled(opl3_chip *chip, Bit16s *buf); +void OPL3v17_Reset(opl3_chip *chip, Bit32u samplerate); +void OPL3v17_WriteReg(opl3_chip *chip, Bit16u reg, Bit8u v); +void OPL3v17_WriteRegBuffered(opl3_chip *chip, Bit16u reg, Bit8u v); +void OPL3v17_GenerateStream(opl3_chip *chip, Bit16s *sndptr, Bit32u numsamples); +void OPL3v17_GenerateStreamMix(opl3_chip *chip, Bit16s *sndptr, Bit32u numsamples); + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/src/nukedopl3.c b/src/chips/nuked/old/nukedopl3.c index 6ae1eb7..6ae1eb7 100644 --- a/src/nukedopl3.c +++ b/src/chips/nuked/old/nukedopl3.c diff --git a/src/nukedopl3.h b/src/chips/nuked/old/nukedopl3.h index 254f275..254f275 100644 --- a/src/nukedopl3.h +++ b/src/chips/nuked/old/nukedopl3.h diff --git a/src/chips/nuked_opl3.cpp b/src/chips/nuked_opl3.cpp new file mode 100644 index 0000000..7833227 --- /dev/null +++ b/src/chips/nuked_opl3.cpp @@ -0,0 +1,67 @@ +#include "nuked_opl3.h" +#include "nuked/nukedopl3.h" +#include <cstring> + +NukedOPL3::NukedOPL3() : + OPLChipBase() +{ + m_chip = new opl3_chip; + reset(m_rate); +} + +NukedOPL3::NukedOPL3(const NukedOPL3 &c): + OPLChipBase(c) +{ + m_chip = new opl3_chip; + std::memset(m_chip, 0, sizeof(opl3_chip)); + reset(c.m_rate); +} + +NukedOPL3::~NukedOPL3() +{ + opl3_chip *chip_r = reinterpret_cast<opl3_chip*>(m_chip); + delete chip_r; +} + +void NukedOPL3::setRate(uint32_t rate) +{ + OPLChipBase::setRate(rate); + opl3_chip *chip_r = reinterpret_cast<opl3_chip*>(m_chip); + std::memset(chip_r, 0, sizeof(opl3_chip)); + OPL3_Reset(chip_r, rate); +} + +void NukedOPL3::reset() +{ + setRate(m_rate); +} + +void NukedOPL3::reset(uint32_t rate) +{ + setRate(rate); +} + +void NukedOPL3::writeReg(uint16_t addr, uint8_t data) +{ + opl3_chip *chip_r = reinterpret_cast<opl3_chip*>(m_chip); + OPL3_WriteReg(chip_r, addr, data); +} + +int NukedOPL3::generate(int16_t *output, size_t frames) +{ + opl3_chip *chip_r = reinterpret_cast<opl3_chip*>(m_chip); + OPL3_GenerateStream(chip_r, output, (Bit32u)frames); + return (int)frames; +} + +int NukedOPL3::generateAndMix(int16_t *output, size_t frames) +{ + opl3_chip *chip_r = reinterpret_cast<opl3_chip*>(m_chip); + OPL3_GenerateStreamMix(chip_r, output, (Bit32u)frames); + return (int)frames; +} + +const char *NukedOPL3::emulatorName() +{ + return "Nuked OPL3 (v 1.8)"; +} diff --git a/src/chips/nuked_opl3.h b/src/chips/nuked_opl3.h new file mode 100644 index 0000000..db665fe --- /dev/null +++ b/src/chips/nuked_opl3.h @@ -0,0 +1,23 @@ +#ifndef NUKED_OPL3_H +#define NUKED_OPL3_H + +#include "opl_chip_base.h" + +class NukedOPL3 final : public OPLChipBase +{ + void *m_chip; +public: + NukedOPL3(); + NukedOPL3(const NukedOPL3 &c); + virtual ~NukedOPL3() override; + + virtual void setRate(uint32_t rate) override; + virtual void reset() override; + virtual void reset(uint32_t rate) override; + virtual void writeReg(uint16_t addr, uint8_t data) override; + virtual int generate(int16_t *output, size_t frames) override; + virtual int generateAndMix(int16_t *output, size_t frames) override; + virtual const char *emulatorName() override; +}; + +#endif // NUKED_OPL3_H diff --git a/src/chips/nuked_opl3_v174.cpp b/src/chips/nuked_opl3_v174.cpp new file mode 100644 index 0000000..7188e83 --- /dev/null +++ b/src/chips/nuked_opl3_v174.cpp @@ -0,0 +1,67 @@ +#include "nuked_opl3_v174.h" +#include "nuked/nukedopl3_174.h" +#include <cstring> + +NukedOPL3v174::NukedOPL3v174() : + OPLChipBase() +{ + m_chip = new opl3_chip; + reset(m_rate); +} + +NukedOPL3v174::NukedOPL3v174(const NukedOPL3v174 &c): + OPLChipBase(c) +{ + m_chip = new opl3_chip; + std::memset(m_chip, 0, sizeof(opl3_chip)); + reset(c.m_rate); +} + +NukedOPL3v174::~NukedOPL3v174() +{ + opl3_chip *chip_r = reinterpret_cast<opl3_chip*>(m_chip); + delete chip_r; +} + +void NukedOPL3v174::setRate(uint32_t rate) +{ + OPLChipBase::setRate(rate); + opl3_chip *chip_r = reinterpret_cast<opl3_chip*>(m_chip); + std::memset(chip_r, 0, sizeof(opl3_chip)); + OPL3v17_Reset(chip_r, rate); +} + +void NukedOPL3v174::reset() +{ + setRate(m_rate); +} + +void NukedOPL3v174::reset(uint32_t rate) +{ + setRate(rate); +} + +void NukedOPL3v174::writeReg(uint16_t addr, uint8_t data) +{ + opl3_chip *chip_r = reinterpret_cast<opl3_chip*>(m_chip); + OPL3v17_WriteReg(chip_r, addr, data); +} + +int NukedOPL3v174::generate(int16_t *output, size_t frames) +{ + opl3_chip *chip_r = reinterpret_cast<opl3_chip*>(m_chip); + OPL3v17_GenerateStream(chip_r, output, (Bit32u)frames); + return (int)frames; +} + +int NukedOPL3v174::generateAndMix(int16_t *output, size_t frames) +{ + opl3_chip *chip_r = reinterpret_cast<opl3_chip*>(m_chip); + OPL3v17_GenerateStreamMix(chip_r, output, (Bit32u)frames); + return (int)frames; +} + +const char *NukedOPL3v174::emulatorName() +{ + return "Nuked OPL3 (v 1.7.4)"; +} diff --git a/src/chips/nuked_opl3_v174.h b/src/chips/nuked_opl3_v174.h new file mode 100644 index 0000000..cf23187 --- /dev/null +++ b/src/chips/nuked_opl3_v174.h @@ -0,0 +1,23 @@ +#ifndef NUKED_OPL3174_H +#define NUKED_OPL3174_H + +#include "opl_chip_base.h" + +class NukedOPL3v174 final : public OPLChipBase +{ + void *m_chip; +public: + NukedOPL3v174(); + NukedOPL3v174(const NukedOPL3v174 &c); + virtual ~NukedOPL3v174() override; + + virtual void setRate(uint32_t rate) override; + virtual void reset() override; + virtual void reset(uint32_t rate) override; + virtual void writeReg(uint16_t addr, uint8_t data) override; + virtual int generate(int16_t *output, size_t frames) override; + virtual int generateAndMix(int16_t *output, size_t frames) override; + virtual const char *emulatorName() override; +}; + +#endif // NUKED_OPL3174_H diff --git a/src/chips/opl_chip_base.cpp b/src/chips/opl_chip_base.cpp new file mode 100644 index 0000000..65d4b73 --- /dev/null +++ b/src/chips/opl_chip_base.cpp @@ -0,0 +1,22 @@ +#include "opl_chip_base.h" + +OPLChipBase::OPLChipBase() : + m_rate(44100) +{} + +OPLChipBase::OPLChipBase(const OPLChipBase &c): + m_rate(c.m_rate) +{} + +OPLChipBase::~OPLChipBase() +{} + +void OPLChipBase::setRate(uint32_t rate) +{ + m_rate = rate; +} + +void OPLChipBase::reset(uint32_t rate) +{ + setRate(rate); +} diff --git a/src/chips/opl_chip_base.h b/src/chips/opl_chip_base.h new file mode 100644 index 0000000..aa6934b --- /dev/null +++ b/src/chips/opl_chip_base.h @@ -0,0 +1,25 @@ +#ifndef ONP_CHIP_BASE_H +#define ONP_CHIP_BASE_H + +#include <stdint.h> +#include <stddef.h> + +class OPLChipBase +{ +protected: + uint32_t m_rate; +public: + OPLChipBase(); + OPLChipBase(const OPLChipBase &c); + virtual ~OPLChipBase(); + + virtual void setRate(uint32_t rate); + virtual void reset() = 0; + virtual void reset(uint32_t rate); + virtual void writeReg(uint16_t addr, uint8_t data) = 0; + virtual int generate(int16_t *output, size_t frames) = 0; + virtual int generateAndMix(int16_t *output, size_t frames) = 0; + virtual const char* emulatorName() = 0; +}; + +#endif // ONP_CHIP_BASE_H diff --git a/utils/midiplay/adlmidiplay.cpp b/utils/midiplay/adlmidiplay.cpp index 69b3698..3734b13 100644 --- a/utils/midiplay/adlmidiplay.cpp +++ b/utils/midiplay/adlmidiplay.cpp @@ -195,6 +195,11 @@ int main(int argc, char **argv) " -s Enables scaling of modulator volumes\n" " -nl Quit without looping\n" " -w Write WAV file rather than playing\n" + #ifndef HARDWARE_OPL3 + " --emu-nuked Uses Nuked OPL3 v 1.7.4 emulator\n" + " --emu-nuked8 Uses Nuked OPL3 v 1.8 emulator\n" + " --emu-dosbox Uses DosBox 0.74 OPL3 emulator\n" + #endif "\n" "Where <bank> - number of embeeded bank or filepath to custom WOPL bank file\n" "\n" @@ -282,6 +287,10 @@ int main(int argc, char **argv) bool recordWave = false; int loopEnabled = 1; #endif + #ifndef HARDWARE_OPL3 + int emulator = ADLMIDI_EMU_NUKED; + #endif + while(argc > 2) { bool had_option = false; @@ -290,16 +299,29 @@ int main(int argc, char **argv) adl_setPercMode(myDevice, 1);//Turn on AdLib percussion mode else if(!std::strcmp("-v", argv[2])) adl_setHVibrato(myDevice, 1);//Turn on deep vibrato + #ifndef OUTPUT_WAVE_ONLY else if(!std::strcmp("-w", argv[2])) recordWave = true;//Record library output into WAV file #endif + else if(!std::strcmp("-t", argv[2])) adl_setHTremolo(myDevice, 1);//Turn on deep tremolo + #ifndef OUTPUT_WAVE_ONLY else if(!std::strcmp("-nl", argv[2])) loopEnabled = 0; //Enable loop #endif + + #ifndef HARDWARE_OPL3 + else if(!std::strcmp("--emu-nuked", argv[2])) + emulator = ADLMIDI_EMU_NUKED; + else if(!std::strcmp("--emu-nuked8", argv[2])) + emulator = ADLMIDI_EMU_NUKED_8; + else if(!std::strcmp("--emu-dosbox", argv[2])) + emulator = ADLMIDI_EMU_DOSBOX; + #endif + else if(!std::strcmp("-s", argv[2])) adl_setScaleModulators(myDevice, 1);//Turn on modulators scaling by volume else break; @@ -321,10 +343,14 @@ int main(int argc, char **argv) adl_setRawEventHook(myDevice, debugPrintEvent, NULL); #endif + #ifndef HARDWARE_OPL3 + adl_switchEmulator(myDevice, emulator); + #endif + #ifdef HARDWARE_OPL3 std::fprintf(stdout, " - Hardware OPL3 chip in use\n"); #else - std::fprintf(stdout, " - %s OPL3 Emulator in use\n", adl_emulatorName()); + std::fprintf(stdout, " - %s Emulator in use\n", adl_chipEmulatorName(myDevice)); #endif #if !defined(HARDWARE_OPL3) && !defined(OUTPUT_WAVE_ONLY) |