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gzdoom/libraries/opnmidi/opnmidi.cpp

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/*
* libOPNMIDI is a free MIDI to WAV conversion library with OPN2 (YM2612) emulation
*
* MIDI parser and player (Original code from ADLMIDI): Copyright (c) 2010-2014 Joel Yliluoma <bisqwit@iki.fi>
* OPNMIDI Library and YM2612 support: Copyright (c) 2017-2018 Vitaly Novichkov <admin@wohlnet.ru>
*
* Library is based on the ADLMIDI, a MIDI player for Linux and Windows with OPL3 emulation:
* http://iki.fi/bisqwit/source/adlmidi.html
*
* 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 3 of the License, or
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "opnmidi_private.hpp"
/* Unify MIDI player casting and interface between ADLMIDI and OPNMIDI */
#define GET_MIDI_PLAYER(device) reinterpret_cast<OPNMIDIplay *>((device)->opn2_midiPlayer)
typedef OPNMIDIplay MidiPlayer;
static OPN2_Version opn2_version = {
OPNMIDI_VERSION_MAJOR,
OPNMIDI_VERSION_MINOR,
OPNMIDI_VERSION_PATCHLEVEL
};
static const OPNMIDI_AudioFormat opn2_DefaultAudioFormat =
{
OPNMIDI_SampleType_S16,
sizeof(int16_t),
2 * sizeof(int16_t),
};
/*---------------------------EXPORTS---------------------------*/
OPNMIDI_EXPORT struct OPN2_MIDIPlayer *opn2_init(long sample_rate)
{
OPN2_MIDIPlayer *midi_device;
midi_device = (OPN2_MIDIPlayer *)malloc(sizeof(OPN2_MIDIPlayer));
if(!midi_device)
{
OPN2MIDI_ErrorString = "Can't initialize OPNMIDI: out of memory!";
return NULL;
}
OPNMIDIplay *player = new(std::nothrow) OPNMIDIplay(static_cast<unsigned long>(sample_rate));
if(!player)
{
free(midi_device);
OPN2MIDI_ErrorString = "Can't initialize OPNMIDI: out of memory!";
return NULL;
}
midi_device->opn2_midiPlayer = player;
return midi_device;
}
OPNMIDI_EXPORT int opn2_setDeviceIdentifier(OPN2_MIDIPlayer *device, unsigned id)
{
if(!device || id > 0x0f)
return -1;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->setDeviceId(static_cast<uint8_t>(id));
return 0;
}
OPNMIDI_EXPORT int opn2_setNumChips(OPN2_MIDIPlayer *device, int numCards)
{
if(device == NULL)
return -2;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_setup.numChips = static_cast<unsigned int>(numCards);
if(play->m_setup.numChips < 1 || play->m_setup.numChips > OPN_MAX_CHIPS)
{
play->setErrorString("number of chips may only be 1.." OPN_MAX_CHIPS_STR ".\n");
return -1;
}
if(!play->m_synth.setupLocked())
{
play->m_synth.m_numChips = play->m_setup.numChips;
play->partialReset();
}
return 0;
}
OPNMIDI_EXPORT int opn2_getNumChips(struct OPN2_MIDIPlayer *device)
{
if(device == NULL)
return -2;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return (int)play->m_setup.numChips;
}
OPNMIDI_EXPORT int opn2_getNumChipsObtained(struct OPN2_MIDIPlayer *device)
{
if(device == NULL)
return -2;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return (int)play->m_synth.m_numChips;
}
OPNMIDI_EXPORT int opn2_reserveBanks(OPN2_MIDIPlayer *device, unsigned banks)
{
if(!device)
return -1;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
OPN2::BankMap &map = play->m_synth.m_insBanks;
map.reserve(banks);
return (int)map.capacity();
}
OPNMIDI_EXPORT int opn2_getBank(OPN2_MIDIPlayer *device, const OPN2_BankId *idp, int flags, OPN2_Bank *bank)
{
if(!device || !idp || !bank)
return -1;
OPN2_BankId id = *idp;
if(id.lsb > 127 || id.msb > 127 || id.percussive > 1)
return -1;
size_t idnumber = ((id.msb << 8) | id.lsb | (id.percussive ? size_t(OPN2::PercussionTag) : 0));
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
OPN2::BankMap &map = play->m_synth.m_insBanks;
OPN2::BankMap::iterator it;
if(!(flags & OPNMIDI_Bank_Create))
{
it = map.find(idnumber);
if(it == map.end())
return -1;
}
else
{
std::pair<size_t, OPN2::Bank> value;
value.first = idnumber;
memset(&value.second, 0, sizeof(value.second));
for (unsigned i = 0; i < 128; ++i)
value.second.ins[i].flags = opnInstMeta::Flag_NoSound;
std::pair<OPN2::BankMap::iterator, bool> ir;
if(flags & OPNMIDI_Bank_CreateRt)
{
ir = map.insert(value, OPN2::BankMap::do_not_expand_t());
if(ir.first == map.end())
return -1;
}
else
ir = map.insert(value);
it = ir.first;
}
it.to_ptrs(bank->pointer);
return 0;
}
OPNMIDI_EXPORT int opn2_getBankId(OPN2_MIDIPlayer *device, const OPN2_Bank *bank, OPN2_BankId *id)
{
if(!device || !bank)
return -1;
OPN2::BankMap::iterator it = OPN2::BankMap::iterator::from_ptrs(bank->pointer);
OPN2::BankMap::key_type idnumber = it->first;
id->msb = (idnumber >> 8) & 127;
id->lsb = idnumber & 127;
id->percussive = (idnumber & OPN2::PercussionTag) ? 1 : 0;
return 0;
}
OPNMIDI_EXPORT int opn2_removeBank(OPN2_MIDIPlayer *device, OPN2_Bank *bank)
{
if(!device || !bank)
return -1;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
OPN2::BankMap &map = play->m_synth.m_insBanks;
OPN2::BankMap::iterator it = OPN2::BankMap::iterator::from_ptrs(bank->pointer);
size_t size = map.size();
map.erase(it);
return (map.size() != size) ? 0 : -1;
}
OPNMIDI_EXPORT int opn2_getFirstBank(OPN2_MIDIPlayer *device, OPN2_Bank *bank)
{
if(!device)
return -1;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
OPN2::BankMap &map = play->m_synth.m_insBanks;
OPN2::BankMap::iterator it = map.begin();
if(it == map.end())
return -1;
it.to_ptrs(bank->pointer);
return 0;
}
OPNMIDI_EXPORT int opn2_getNextBank(OPN2_MIDIPlayer *device, OPN2_Bank *bank)
{
if(!device)
return -1;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
OPN2::BankMap &map = play->m_synth.m_insBanks;
OPN2::BankMap::iterator it = OPN2::BankMap::iterator::from_ptrs(bank->pointer);
if(++it == map.end())
return -1;
it.to_ptrs(bank->pointer);
return 0;
}
OPNMIDI_EXPORT int opn2_getInstrument(OPN2_MIDIPlayer *device, const OPN2_Bank *bank, unsigned index, OPN2_Instrument *ins)
{
if(!device || !bank || index > 127 || !ins)
return -1;
OPN2::BankMap::iterator it = OPN2::BankMap::iterator::from_ptrs(bank->pointer);
cvt_FMIns_to_OPNI(*ins, it->second.ins[index]);
ins->version = 0;
return 0;
}
OPNMIDI_EXPORT int opn2_setInstrument(OPN2_MIDIPlayer *device, OPN2_Bank *bank, unsigned index, const OPN2_Instrument *ins)
{
if(!device || !bank || index > 127 || !ins)
return -1;
if(ins->version != 0)
return -1;
OPN2::BankMap::iterator it = OPN2::BankMap::iterator::from_ptrs(bank->pointer);
cvt_OPNI_to_FMIns(it->second.ins[index], *ins);
return 0;
}
OPNMIDI_EXPORT int opn2_openBankFile(OPN2_MIDIPlayer *device, const char *filePath)
{
if(device)
{
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_setup.tick_skip_samples_delay = 0;
if(!play->LoadBank(filePath))
{
std::string err = play->getErrorString();
if(err.empty())
play->setErrorString("OPN2 MIDI: Can't load file");
return -1;
}
else
return 0;
}
OPN2MIDI_ErrorString = "Can't load file: OPN2 MIDI is not initialized";
return -1;
}
OPNMIDI_EXPORT int opn2_openBankData(OPN2_MIDIPlayer *device, const void *mem, long size)
{
if(device)
{
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_setup.tick_skip_samples_delay = 0;
if(!play->LoadBank(mem, static_cast<size_t>(size)))
{
std::string err = play->getErrorString();
if(err.empty())
play->setErrorString("OPN2 MIDI: Can't load data from memory");
return -1;
}
else return 0;
}
OPN2MIDI_ErrorString = "Can't load file: OPN2 MIDI is not initialized";
return -1;
}
OPNMIDI_EXPORT void opn2_setLfoEnabled(struct OPN2_MIDIPlayer *device, int lfoEnable)
{
if(!device) return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_setup.lfoEnable = lfoEnable;
play->m_synth.m_lfoEnable = (lfoEnable < 0 ?
play->m_synth.m_insBankSetup.lfoEnable :
play->m_setup.lfoEnable) != 0;
play->m_synth.commitLFOSetup();
}
OPNMIDI_EXPORT int opn2_getLfoEnabled(struct OPN2_MIDIPlayer *device)
{
if(!device) return -1;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->m_synth.m_lfoEnable;
}
OPNMIDI_EXPORT void opn2_setLfoFrequency(struct OPN2_MIDIPlayer *device, int lfoFrequency)
{
if(!device) return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_setup.lfoFrequency = lfoFrequency;
play->m_synth.m_lfoFrequency = lfoFrequency < 0 ?
play->m_synth.m_insBankSetup.lfoFrequency :
(uint8_t)play->m_setup.lfoFrequency;
play->m_synth.commitLFOSetup();
}
OPNMIDI_EXPORT int opn2_getLfoFrequency(struct OPN2_MIDIPlayer *device)
{
if(!device) return -1;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->m_synth.m_lfoFrequency;
}
OPNMIDI_EXPORT void opn2_setScaleModulators(OPN2_MIDIPlayer *device, int smod)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_setup.ScaleModulators = smod;
play->m_synth.m_scaleModulators = (play->m_setup.ScaleModulators != 0);
}
OPNMIDI_EXPORT void opn2_setFullRangeBrightness(struct OPN2_MIDIPlayer *device, int fr_brightness)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_setup.fullRangeBrightnessCC74 = (fr_brightness != 0);
}
OPNMIDI_EXPORT void opn2_setLoopEnabled(OPN2_MIDIPlayer *device, int loopEn)
{
if(!device)
return;
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_sequencer.setLoopEnabled(loopEn != 0);
#else
ADL_UNUSED(loopEn);
#endif
}
OPNMIDI_EXPORT void opn2_setSoftPanEnabled(OPN2_MIDIPlayer *device, int softPanEn)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_synth.m_softPanning = (softPanEn != 0);
}
/* !!!DEPRECATED!!! */
OPNMIDI_EXPORT void opn2_setLogarithmicVolumes(struct OPN2_MIDIPlayer *device, int logvol)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_setup.LogarithmicVolumes = static_cast<unsigned int>(logvol);
if(!play->m_synth.setupLocked())
{
if(play->m_setup.LogarithmicVolumes != 0)
play->m_synth.setVolumeScaleModel(OPNMIDI_VolumeModel_NativeOPN2);
else
play->m_synth.setVolumeScaleModel(static_cast<OPNMIDI_VolumeModels>(play->m_setup.VolumeModel));
}
}
OPNMIDI_EXPORT void opn2_setVolumeRangeModel(OPN2_MIDIPlayer *device, int volumeModel)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_setup.VolumeModel = volumeModel;
if(!play->m_synth.setupLocked())
{
if(play->m_setup.VolumeModel == OPNMIDI_VolumeModel_AUTO)//Use bank default volume model
play->m_synth.m_volumeScale = (OPN2::VolumesScale)play->m_synth.m_insBankSetup.volumeModel;
else
play->m_synth.setVolumeScaleModel(static_cast<OPNMIDI_VolumeModels>(volumeModel));
}
}
OPNMIDI_EXPORT int opn2_getVolumeRangeModel(struct OPN2_MIDIPlayer *device)
{
if(!device)
return -1;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->m_synth.getVolumeScaleModel();
}
OPNMIDI_EXPORT int opn2_openFile(OPN2_MIDIPlayer *device, const char *filePath)
{
if(device)
{
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
play->m_setup.tick_skip_samples_delay = 0;
if(!play->LoadMIDI(filePath))
{
std::string err = play->getErrorString();
if(err.empty())
play->setErrorString("OPN2 MIDI: Can't load file");
return -1;
}
else return 0;
#else
ADL_UNUSED(filePath);
play->setErrorString("OPNMIDI: MIDI Sequencer is not supported in this build of library!");
return -1;
#endif
}
OPN2MIDI_ErrorString = "Can't load file: OPN2 MIDI is not initialized";
return -1;
}
OPNMIDI_EXPORT int opn2_openData(OPN2_MIDIPlayer *device, const void *mem, unsigned long size)
{
if(device)
{
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
play->m_setup.tick_skip_samples_delay = 0;
if(!play->LoadMIDI(mem, static_cast<size_t>(size)))
{
std::string err = play->getErrorString();
if(err.empty())
play->setErrorString("OPN2 MIDI: Can't load data from memory");
return -1;
}
else return 0;
#else
ADL_UNUSED(mem);
ADL_UNUSED(size);
play->setErrorString("OPNMIDI: MIDI Sequencer is not supported in this build of library!");
return -1;
#endif
}
OPN2MIDI_ErrorString = "Can't load file: OPN2 MIDI is not initialized";
return -1;
}
OPNMIDI_EXPORT const char *opn2_emulatorName()
{
return "<opn2_emulatorName() is deprecated! Use opn2_chipEmulatorName() instead!>";
}
OPNMIDI_EXPORT const char *opn2_chipEmulatorName(struct OPN2_MIDIPlayer *device)
{
if(device)
{
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
if(!play->m_synth.m_chips.empty())
return play->m_synth.m_chips[0]->emulatorName();
}
return "Unknown";
}
OPNMIDI_EXPORT int opn2_switchEmulator(struct OPN2_MIDIPlayer *device, int emulator)
{
if(device)
{
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
if(opn2_isEmulatorAvailable(emulator))
{
play->m_setup.emulator = emulator;
play->partialReset();
return 0;
}
play->setErrorString("OPN2 MIDI: Unknown emulation core!");
}
return -1;
}
OPNMIDI_EXPORT int opn2_setRunAtPcmRate(OPN2_MIDIPlayer *device, int enabled)
{
if(device)
{
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_setup.runAtPcmRate = (enabled != 0);
if(!play->m_synth.setupLocked())
play->partialReset();
return 0;
}
return -1;
}
OPNMIDI_EXPORT const char *opn2_linkedLibraryVersion()
{
#if !defined(OPNMIDI_ENABLE_HQ_RESAMPLER)
return OPNMIDI_VERSION;
#else
return OPNMIDI_VERSION " (HQ)";
#endif
}
OPNMIDI_EXPORT const OPN2_Version *opn2_linkedVersion()
{
return &opn2_version;
}
OPNMIDI_EXPORT const char *opn2_errorString()
{
return OPN2MIDI_ErrorString.c_str();
}
OPNMIDI_EXPORT const char *opn2_errorInfo(struct OPN2_MIDIPlayer *device)
{
if(!device)
return opn2_errorString();
MidiPlayer *play = GET_MIDI_PLAYER(device);
if(!play)
return opn2_errorString();
return play->getErrorString().c_str();
}
OPNMIDI_EXPORT void opn2_close(OPN2_MIDIPlayer *device)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
delete play;
device->opn2_midiPlayer = NULL;
free(device);
device = NULL;
}
OPNMIDI_EXPORT void opn2_reset(OPN2_MIDIPlayer *device)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->partialReset();
play->resetMIDI();
}
OPNMIDI_EXPORT double opn2_totalTimeLength(struct OPN2_MIDIPlayer *device)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return -1.0;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->m_sequencer.timeLength();
#else
ADL_UNUSED(device);
return -1.0;
#endif
}
OPNMIDI_EXPORT double opn2_loopStartTime(struct OPN2_MIDIPlayer *device)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return -1.0;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->m_sequencer.getLoopStart();
#else
ADL_UNUSED(device);
return -1.0;
#endif
}
OPNMIDI_EXPORT double opn2_loopEndTime(struct OPN2_MIDIPlayer *device)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return -1.0;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->m_sequencer.getLoopEnd();
#else
ADL_UNUSED(device);
return -1.0;
#endif
}
OPNMIDI_EXPORT double opn2_positionTell(struct OPN2_MIDIPlayer *device)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return -1.0;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->m_sequencer.tell();
#else
ADL_UNUSED(device);
return -1.0;
#endif
}
OPNMIDI_EXPORT void opn2_positionSeek(struct OPN2_MIDIPlayer *device, double seconds)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(seconds < 0.0)
return;//Seeking negative position is forbidden! :-P
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_panic();
play->m_setup.delay = play->m_sequencer.seek(seconds, play->m_setup.mindelay);
play->m_setup.carry = 0.0;
#else
ADL_UNUSED(device);
ADL_UNUSED(seconds);
#endif
}
OPNMIDI_EXPORT void opn2_positionRewind(struct OPN2_MIDIPlayer *device)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_panic();
play->m_sequencer.rewind();
#else
ADL_UNUSED(device);
#endif
}
OPNMIDI_EXPORT void opn2_setTempo(struct OPN2_MIDIPlayer *device, double tempo)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device || (tempo <= 0.0))
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_sequencer.setTempo(tempo);
#else
ADL_UNUSED(device);
ADL_UNUSED(tempo);
#endif
}
OPNMIDI_EXPORT int opn2_describeChannels(struct OPN2_MIDIPlayer *device, char *str, char *attr, size_t size)
{
if(!device)
return -1;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->describeChannels(str, attr, size);
return 0;
}
OPNMIDI_EXPORT const char *opn2_metaMusicTitle(struct OPN2_MIDIPlayer *device)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return "";
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->m_sequencer.getMusicTitle().c_str();
#else
ADL_UNUSED(device);
return "";
#endif
}
OPNMIDI_EXPORT const char *opn2_metaMusicCopyright(struct OPN2_MIDIPlayer *device)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return "";
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->m_sequencer.getMusicCopyright().c_str();
#else
ADL_UNUSED(device);
return 0;
#endif
}
OPNMIDI_EXPORT size_t opn2_metaTrackTitleCount(struct OPN2_MIDIPlayer *device)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return 0;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->m_sequencer.getTrackTitles().size();
#else
ADL_UNUSED(device);
return 0;
#endif
}
OPNMIDI_EXPORT const char *opn2_metaTrackTitle(struct OPN2_MIDIPlayer *device, size_t index)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return "";
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
const std::vector<std::string> &titles = play->m_sequencer.getTrackTitles();
if(index >= titles.size())
return "INVALID";
return titles[index].c_str();
#else
ADL_UNUSED(device);
ADL_UNUSED(index);
return "NOT SUPPORTED";
#endif
}
OPNMIDI_EXPORT size_t opn2_metaMarkerCount(struct OPN2_MIDIPlayer *device)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return 0;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->m_sequencer.getMarkers().size();
#else
ADL_UNUSED(device);
return 0;
#endif
}
OPNMIDI_EXPORT Opn2_MarkerEntry opn2_metaMarker(struct OPN2_MIDIPlayer *device, size_t index)
{
struct Opn2_MarkerEntry marker;
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
{
marker.label = "INVALID";
marker.pos_time = 0.0;
marker.pos_ticks = 0;
return marker;
}
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
const std::vector<MidiSequencer::MIDI_MarkerEntry> &markers = play->m_sequencer.getMarkers();
if(index >= markers.size())
{
marker.label = "INVALID";
marker.pos_time = 0.0;
marker.pos_ticks = 0;
return marker;
}
const MidiSequencer::MIDI_MarkerEntry &mk = markers[index];
marker.label = mk.label.c_str();
marker.pos_time = mk.pos_time;
marker.pos_ticks = (unsigned long)mk.pos_ticks;
#else
(void)device; (void)index;
marker.label = "NOT SUPPORTED";
marker.pos_time = 0.0;
marker.pos_ticks = 0;
#endif
return marker;
}
OPNMIDI_EXPORT void opn2_setRawEventHook(struct OPN2_MIDIPlayer *device, OPN2_RawEventHook rawEventHook, void *userData)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->m_sequencerInterface.onEvent = rawEventHook;
play->m_sequencerInterface.onEvent_userData = userData;
#else
ADL_UNUSED(device);
ADL_UNUSED(rawEventHook);
ADL_UNUSED(userData);
#endif
}
/* Set note hook */
OPNMIDI_EXPORT void opn2_setNoteHook(struct OPN2_MIDIPlayer *device, OPN2_NoteHook noteHook, void *userData)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->hooks.onNote = noteHook;
play->hooks.onNote_userData = userData;
}
/* Set debug message hook */
OPNMIDI_EXPORT void opn2_setDebugMessageHook(struct OPN2_MIDIPlayer *device, OPN2_DebugMessageHook debugMessageHook, void *userData)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->hooks.onDebugMessage = debugMessageHook;
play->hooks.onDebugMessage_userData = userData;
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
play->m_sequencerInterface.onDebugMessage = debugMessageHook;
play->m_sequencerInterface.onDebugMessage_userData = userData;
#endif
}
template <class Dst>
static void CopySamplesRaw(OPN2_UInt8 *dstLeft, OPN2_UInt8 *dstRight, const int32_t *src,
size_t frameCount, unsigned sampleOffset)
{
for(size_t i = 0; i < frameCount; ++i) {
*(Dst *)(dstLeft + (i * sampleOffset)) = src[2 * i];
*(Dst *)(dstRight + (i * sampleOffset)) = src[(2 * i) + 1];
}
}
template <class Dst, class Ret>
static void CopySamplesTransformed(OPN2_UInt8 *dstLeft, OPN2_UInt8 *dstRight, const int32_t *src,
size_t frameCount, unsigned sampleOffset,
Ret(&transform)(int32_t))
{
for(size_t i = 0; i < frameCount; ++i) {
*(Dst *)(dstLeft + (i * sampleOffset)) = static_cast<Dst>(transform(src[2 * i]));
*(Dst *)(dstRight + (i * sampleOffset)) = static_cast<Dst>(transform(src[(2 * i) + 1]));
}
}
static int SendStereoAudio(int samples_requested,
ssize_t in_size,
int32_t *_in,
ssize_t out_pos,
OPN2_UInt8 *left,
OPN2_UInt8 *right,
const OPNMIDI_AudioFormat *format)
{
if(!in_size)
return 0;
size_t outputOffset = static_cast<size_t>(out_pos);
size_t inSamples = static_cast<size_t>(in_size * 2);
size_t maxSamples = static_cast<size_t>(samples_requested) - outputOffset;
size_t toCopy = std::min(maxSamples, inSamples);
OPNMIDI_SampleType sampleType = format->type;
const unsigned containerSize = format->containerSize;
const unsigned sampleOffset = format->sampleOffset;
left += (outputOffset / 2) * sampleOffset;
right += (outputOffset / 2) * sampleOffset;
typedef int32_t(&pfnConvert)(int32_t);
switch(sampleType) {
case OPNMIDI_SampleType_S8:
case OPNMIDI_SampleType_U8:
{
pfnConvert cvt = (sampleType == OPNMIDI_SampleType_S8) ? opn2_cvtS8 : opn2_cvtU8;
switch(containerSize) {
case sizeof(int8_t):
CopySamplesTransformed<int8_t>(left, right, _in, toCopy / 2, sampleOffset, cvt);
break;
case sizeof(int16_t):
CopySamplesTransformed<int16_t>(left, right, _in, toCopy / 2, sampleOffset, cvt);
break;
case sizeof(int32_t):
CopySamplesTransformed<int32_t>(left, right, _in, toCopy / 2, sampleOffset, cvt);
break;
default:
return -1;
}
break;
}
case OPNMIDI_SampleType_S16:
case OPNMIDI_SampleType_U16:
{
pfnConvert cvt = (sampleType == OPNMIDI_SampleType_S16) ? opn2_cvtS16 : opn2_cvtU16;
switch(containerSize) {
case sizeof(int16_t):
CopySamplesTransformed<int16_t>(left, right, _in, toCopy / 2, sampleOffset, cvt);
break;
case sizeof(int32_t):
CopySamplesRaw<int32_t>(left, right, _in, toCopy / 2, sampleOffset);
break;
default:
return -1;
}
break;
}
case OPNMIDI_SampleType_S24:
case OPNMIDI_SampleType_U24:
{
pfnConvert cvt = (sampleType == OPNMIDI_SampleType_S24) ? opn2_cvtS24 : opn2_cvtU24;
switch(containerSize) {
case sizeof(int32_t):
CopySamplesTransformed<int32_t>(left, right, _in, toCopy / 2, sampleOffset, cvt);
break;
default:
return -1;
}
break;
}
case OPNMIDI_SampleType_S32:
case OPNMIDI_SampleType_U32:
{
pfnConvert cvt = (sampleType == OPNMIDI_SampleType_S32) ? opn2_cvtS32 : opn2_cvtU32;
switch(containerSize) {
case sizeof(int32_t):
CopySamplesTransformed<int32_t>(left, right, _in, toCopy / 2, sampleOffset, cvt);
break;
default:
return -1;
}
break;
}
case OPNMIDI_SampleType_F32:
if(containerSize != sizeof(float))
return -1;
CopySamplesTransformed<float>(left, right, _in, toCopy / 2, sampleOffset, opn2_cvtReal<float>);
break;
case OPNMIDI_SampleType_F64:
if(containerSize != sizeof(double))
return -1;
CopySamplesTransformed<double>(left, right, _in, toCopy / 2, sampleOffset, opn2_cvtReal<double>);
break;
default:
return -1;
}
return 0;
}
OPNMIDI_EXPORT int opn2_play(struct OPN2_MIDIPlayer *device, int sampleCount, short *out)
{
return opn2_playFormat(device, sampleCount, (OPN2_UInt8 *)out, (OPN2_UInt8 *)(out + 1), &opn2_DefaultAudioFormat);
}
OPNMIDI_EXPORT int opn2_playFormat(OPN2_MIDIPlayer *device, int sampleCount,
OPN2_UInt8 *out_left, OPN2_UInt8 *out_right,
const OPNMIDI_AudioFormat *format)
{
#if defined(OPNMIDI_DISABLE_MIDI_SEQUENCER)
ADL_UNUSED(device);
ADL_UNUSED(sampleCount);
ADL_UNUSED(out_left);
ADL_UNUSED(out_right);
ADL_UNUSED(format);
return 0;
#endif
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
sampleCount -= sampleCount % 2; //Avoid even sample requests
if(sampleCount < 0)
return 0;
if(!device)
return 0;
MidiPlayer *player = GET_MIDI_PLAYER(device);
assert(player);
MidiPlayer::Setup &setup = player->m_setup;
ssize_t gotten_len = 0;
ssize_t n_periodCountStereo = 512;
//ssize_t n_periodCountPhys = n_periodCountStereo * 2;
int left = sampleCount;
bool hasSkipped = setup.tick_skip_samples_delay > 0;
while(left > 0)
{
{//
const double eat_delay = setup.delay < setup.maxdelay ? setup.delay : setup.maxdelay;
if(hasSkipped)
{
size_t samples = setup.tick_skip_samples_delay > sampleCount ? sampleCount : setup.tick_skip_samples_delay;
n_periodCountStereo = samples / 2;
}
else
{
setup.delay -= eat_delay;
setup.carry += double(setup.PCM_RATE) * eat_delay;
n_periodCountStereo = static_cast<ssize_t>(setup.carry);
setup.carry -= double(n_periodCountStereo);
}
//if(setup.SkipForward > 0)
// setup.SkipForward -= 1;
//else
{
if((player->m_sequencer.positionAtEnd()) && (setup.delay <= 0.0))
break;//Stop to fetch samples at reaching the song end with disabled loop
ssize_t leftSamples = left / 2;
if(n_periodCountStereo > leftSamples)
{
setup.tick_skip_samples_delay = (n_periodCountStereo - leftSamples) * 2;
n_periodCountStereo = leftSamples;
}
//! Count of stereo samples
ssize_t in_generatedStereo = (n_periodCountStereo > 512) ? 512 : n_periodCountStereo;
//! Total count of samples
ssize_t in_generatedPhys = in_generatedStereo * 2;
//! Unsigned total sample count
//fill buffer with zeros
int32_t *out_buf = player->m_outBuf;
std::memset(out_buf, 0, static_cast<size_t>(in_generatedPhys) * sizeof(out_buf[0]));
unsigned int chips = player->m_synth.m_numChips;
if(chips == 1)
player->m_synth.m_chips[0]->generate32(out_buf, (size_t)in_generatedStereo);
else/* if(n_periodCountStereo > 0)*/
{
/* Generate data from every chip and mix result */
for(size_t card = 0; card < chips; ++card)
player->m_synth.m_chips[card]->generateAndMix32(out_buf, (size_t)in_generatedStereo);
}
/* Process it */
if(SendStereoAudio(sampleCount, in_generatedStereo, out_buf, gotten_len, out_left, out_right, format) == -1)
return 0;
left -= (int)in_generatedPhys;
gotten_len += (in_generatedPhys) /* - setup.stored_samples*/;
}
if(hasSkipped)
{
setup.tick_skip_samples_delay -= n_periodCountStereo * 2;
hasSkipped = setup.tick_skip_samples_delay > 0;
}
else
setup.delay = player->Tick(eat_delay, setup.mindelay);
}//
}
return static_cast<int>(gotten_len);
#endif //OPNMIDI_DISABLE_MIDI_SEQUENCER
}
OPNMIDI_EXPORT int opn2_generate(struct OPN2_MIDIPlayer *device, int sampleCount, short *out)
{
return opn2_generateFormat(device, sampleCount, (OPN2_UInt8 *)out, (OPN2_UInt8 *)(out + 1), &opn2_DefaultAudioFormat);
}
OPNMIDI_EXPORT int opn2_generateFormat(struct OPN2_MIDIPlayer *device, int sampleCount,
OPN2_UInt8 *out_left, OPN2_UInt8 *out_right,
const OPNMIDI_AudioFormat *format)
{
sampleCount -= sampleCount % 2; //Avoid even sample requests
if(sampleCount < 0)
return 0;
if(!device)
return 0;
MidiPlayer *player = GET_MIDI_PLAYER(device);
assert(player);
MidiPlayer::Setup &setup = player->m_setup;
ssize_t gotten_len = 0;
ssize_t n_periodCountStereo = 512;
int left = sampleCount;
double delay = double(sampleCount) / double(setup.PCM_RATE);
while(left > 0)
{
{//
const double eat_delay = delay < setup.maxdelay ? delay : setup.maxdelay;
delay -= eat_delay;
setup.carry += double(setup.PCM_RATE) * eat_delay;
n_periodCountStereo = static_cast<ssize_t>(setup.carry);
setup.carry -= double(n_periodCountStereo);
{
ssize_t leftSamples = left / 2;
if(n_periodCountStereo > leftSamples)
n_periodCountStereo = leftSamples;
//! Count of stereo samples
ssize_t in_generatedStereo = (n_periodCountStereo > 512) ? 512 : n_periodCountStereo;
//! Total count of samples
ssize_t in_generatedPhys = in_generatedStereo * 2;
//! Unsigned total sample count
//fill buffer with zeros
int32_t *out_buf = player->m_outBuf;
std::memset(out_buf, 0, static_cast<size_t>(in_generatedPhys) * sizeof(out_buf[0]));
unsigned int chips = player->m_synth.m_numChips;
if(chips == 1)
player->m_synth.m_chips[0]->generate32(out_buf, (size_t)in_generatedStereo);
else/* if(n_periodCountStereo > 0)*/
{
/* Generate data from every chip and mix result */
for(size_t card = 0; card < chips; ++card)
player->m_synth.m_chips[card]->generateAndMix32(out_buf, (size_t)in_generatedStereo);
}
/* Process it */
if(SendStereoAudio(sampleCount, in_generatedStereo, out_buf, gotten_len, out_left, out_right, format) == -1)
return 0;
left -= (int)in_generatedPhys;
gotten_len += (in_generatedPhys) /* - setup.stored_samples*/;
}
player->TickIterators(eat_delay);
}//...
}
return static_cast<int>(gotten_len);
}
OPNMIDI_EXPORT double opn2_tickEvents(struct OPN2_MIDIPlayer *device, double seconds, double granuality)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return -1.0;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->Tick(seconds, granuality);
#else
ADL_UNUSED(device);
ADL_UNUSED(seconds);
ADL_UNUSED(granuality);
return -1.0;
#endif
}
OPNMIDI_EXPORT int opn2_atEnd(struct OPN2_MIDIPlayer *device)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return 1;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return (int)play->m_sequencer.positionAtEnd();
#else
ADL_UNUSED(device);
return 1;
#endif
}
OPNMIDI_EXPORT size_t opn2_trackCount(struct OPN2_MIDIPlayer *device)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return 0;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->m_sequencer.getTrackCount();
#else
ADL_UNUSED(device);
return 0;
#endif
}
OPNMIDI_EXPORT int opn2_setTrackOptions(struct OPN2_MIDIPlayer *device, size_t trackNumber, unsigned trackOptions)
{
#ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER
if(!device)
return -1;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
MidiSequencer &seq = play->m_sequencer;
unsigned enableFlag = trackOptions & 3;
trackOptions &= ~3u;
// handle on/off/solo
switch(enableFlag)
{
default:
break;
case OPNMIDI_TrackOption_On:
case OPNMIDI_TrackOption_Off:
if(!seq.setTrackEnabled(trackNumber, enableFlag == OPNMIDI_TrackOption_On))
return -1;
break;
case OPNMIDI_TrackOption_Solo:
seq.setSoloTrack(trackNumber);
break;
}
// handle others...
if(trackOptions != 0)
return -1;
return 0;
#else
ADL_UNUSED(device);
ADL_UNUSED(trackNumber);
ADL_UNUSED(trackOptions);
return -1;
#endif
}
OPNMIDI_EXPORT void opn2_panic(struct OPN2_MIDIPlayer *device)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_panic();
}
OPNMIDI_EXPORT void opn2_rt_resetState(struct OPN2_MIDIPlayer *device)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_ResetState();
}
OPNMIDI_EXPORT int opn2_rt_noteOn(struct OPN2_MIDIPlayer *device, OPN2_UInt8 channel, OPN2_UInt8 note, OPN2_UInt8 velocity)
{
if(!device)
return 0;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return (int)play->realTime_NoteOn(channel, note, velocity);
}
OPNMIDI_EXPORT void opn2_rt_noteOff(struct OPN2_MIDIPlayer *device, OPN2_UInt8 channel, OPN2_UInt8 note)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_NoteOff(channel, note);
}
OPNMIDI_EXPORT void opn2_rt_noteAfterTouch(struct OPN2_MIDIPlayer *device, OPN2_UInt8 channel, OPN2_UInt8 note, OPN2_UInt8 atVal)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_NoteAfterTouch(channel, note, atVal);
}
OPNMIDI_EXPORT void opn2_rt_channelAfterTouch(struct OPN2_MIDIPlayer *device, OPN2_UInt8 channel, OPN2_UInt8 atVal)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_ChannelAfterTouch(channel, atVal);
}
OPNMIDI_EXPORT void opn2_rt_controllerChange(struct OPN2_MIDIPlayer *device, OPN2_UInt8 channel, OPN2_UInt8 type, OPN2_UInt8 value)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_Controller(channel, type, value);
}
OPNMIDI_EXPORT void opn2_rt_patchChange(struct OPN2_MIDIPlayer *device, OPN2_UInt8 channel, OPN2_UInt8 patch)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_PatchChange(channel, patch);
}
OPNMIDI_EXPORT void opn2_rt_pitchBend(struct OPN2_MIDIPlayer *device, OPN2_UInt8 channel, OPN2_UInt16 pitch)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_PitchBend(channel, pitch);
}
OPNMIDI_EXPORT void opn2_rt_pitchBendML(struct OPN2_MIDIPlayer *device, OPN2_UInt8 channel, OPN2_UInt8 msb, OPN2_UInt8 lsb)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_PitchBend(channel, msb, lsb);
}
OPNMIDI_EXPORT void opn2_rt_bankChangeLSB(struct OPN2_MIDIPlayer *device, OPN2_UInt8 channel, OPN2_UInt8 lsb)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_BankChangeLSB(channel, lsb);
}
OPNMIDI_EXPORT void opn2_rt_bankChangeMSB(struct OPN2_MIDIPlayer *device, OPN2_UInt8 channel, OPN2_UInt8 msb)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_BankChangeMSB(channel, msb);
}
OPNMIDI_EXPORT void opn2_rt_bankChange(struct OPN2_MIDIPlayer *device, OPN2_UInt8 channel, OPN2_SInt16 bank)
{
if(!device)
return;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
play->realTime_BankChange(channel, (uint16_t)bank);
}
OPNMIDI_EXPORT int opn2_rt_systemExclusive(struct OPN2_MIDIPlayer *device, const OPN2_UInt8 *msg, size_t size)
{
if(!device)
return -1;
MidiPlayer *play = GET_MIDI_PLAYER(device);
assert(play);
return play->realTime_SysEx(msg, size);
}
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