/* * 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 * OPNMIDI Library and YM2612 support: Copyright (c) 2017-2018 Vitaly Novichkov * * 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 . */ #include "opnmidi_private.hpp" #include "opnmidi_cvt.hpp" #include "wopn/wopn_file.h" bool OPNMIDIplay::LoadBank(const std::string &filename) { FileAndMemReader file; file.openFile(filename.c_str()); return LoadBank(file); } bool OPNMIDIplay::LoadBank(const void *data, size_t size) { FileAndMemReader file; file.openData(data, (size_t)size); return LoadBank(file); } void cvt_OPNI_to_FMIns(opnInstMeta2 &ins, const OPN2_Instrument &in) { return cvt_generic_to_FMIns(ins, in); } void cvt_FMIns_to_OPNI(OPN2_Instrument &ins, const opnInstMeta2 &in) { cvt_FMIns_to_generic(ins, in); } bool OPNMIDIplay::LoadBank(FileAndMemReader &fr) { int err = 0; WOPNFile *wopn = NULL; char *raw_file_data = NULL; size_t fsize; if(!fr.isValid()) { errorStringOut = "Custom bank: Invalid data stream!"; return false; } // Read complete bank file into the memory fsize = fr.fileSize(); fr.seek(0, FileAndMemReader::SET); // Allocate necessary memory block raw_file_data = (char*)malloc(fsize); if(!raw_file_data) { errorStringOut = "Custom bank: Out of memory before of read!"; return false; } fr.read(raw_file_data, 1, fsize); // Parse bank file from the memory wopn = WOPN_LoadBankFromMem((void*)raw_file_data, fsize, &err); //Free the buffer no more needed free(raw_file_data); // Check for any erros if(!wopn) { switch(err) { case WOPN_ERR_BAD_MAGIC: errorStringOut = "Custom bank: Invalid magic!"; return false; case WOPN_ERR_UNEXPECTED_ENDING: errorStringOut = "Custom bank: Unexpected ending!"; return false; case WOPN_ERR_INVALID_BANKS_COUNT: errorStringOut = "Custom bank: Invalid banks count!"; return false; case WOPN_ERR_NEWER_VERSION: errorStringOut = "Custom bank: Version is newer than supported by this library!"; return false; case WOPN_ERR_OUT_OF_MEMORY: errorStringOut = "Custom bank: Out of memory!"; return false; default: errorStringOut = "Custom bank: Unknown error!"; return false; } } m_synth.m_insBankSetup.volumeModel = wopn->volume_model; m_synth.m_insBankSetup.lfoEnable = (wopn->lfo_freq & 8) != 0; m_synth.m_insBankSetup.lfoFrequency = wopn->lfo_freq & 7; m_setup.VolumeModel = OPNMIDI_VolumeModel_AUTO; m_setup.lfoEnable = -1; m_setup.lfoFrequency = -1; m_synth.m_insBanks.clear(); uint16_t slots_counts[2] = {wopn->banks_count_melodic, wopn->banks_count_percussion}; WOPNBank *slots_src_ins[2] = { wopn->banks_melodic, wopn->banks_percussive }; for(size_t ss = 0; ss < 2; ss++) { for(size_t i = 0; i < slots_counts[ss]; i++) { size_t bankno = (slots_src_ins[ss][i].bank_midi_msb * 256) + (slots_src_ins[ss][i].bank_midi_lsb) + (ss ? size_t(OPN2::PercussionTag) : 0); OPN2::Bank &bank = m_synth.m_insBanks[bankno]; for(int j = 0; j < 128; j++) { opnInstMeta2 &ins = bank.ins[j]; std::memset(&ins, 0, sizeof(opnInstMeta2)); WOPNInstrument &inIns = slots_src_ins[ss][i].ins[j]; cvt_generic_to_FMIns(ins, inIns); } } } applySetup(); WOPN_Free(wopn); return true; } #ifndef OPNMIDI_DISABLE_MIDI_SEQUENCER bool OPNMIDIplay::LoadMIDI_pre() { if(m_synth.m_insBanks.empty()) { errorStringOut = "Bank is not set! Please load any instruments bank by using of adl_openBankFile() or adl_openBankData() functions!"; return false; } /**** Set all properties BEFORE starting of actial file reading! ****/ resetMIDI(); applySetup(); return true; } bool OPNMIDIplay::LoadMIDI_post() { MidiSequencer::FileFormat format = m_sequencer.getFormat(); if(format == MidiSequencer::Format_CMF) { errorStringOut = "OPNMIDI doesn't supports CMF, use ADLMIDI to play this file!"; /* As joke, why not to try implemented the converter of patches from OPL3 into OPN2? */ return false; } else if(format == MidiSequencer::Format_RSXX) { m_synth.m_musicMode = OPN2::MODE_RSXX; m_synth.m_volumeScale = OPN2::VOLUME_Generic; m_synth.m_numChips = 2; } else if(format == MidiSequencer::Format_IMF) { errorStringOut = "OPNMIDI doesn't supports IMF, use ADLMIDI to play this file!"; /* Same as for CMF */ return false; } m_setup.tick_skip_samples_delay = 0; m_synth.reset(m_setup.emulator, m_setup.PCM_RATE, this); // Reset OPN2 chip m_chipChannels.clear(); m_chipChannels.resize(m_synth.m_numChannels); return true; } bool OPNMIDIplay::LoadMIDI(const std::string &filename) { FileAndMemReader file; file.openFile(filename.c_str()); if(!LoadMIDI_pre()) return false; if(!m_sequencer.loadMIDI(file)) { errorStringOut = m_sequencer.getErrorString(); return false; } if(!LoadMIDI_post()) return false; return true; } bool OPNMIDIplay::LoadMIDI(const void *data, size_t size) { FileAndMemReader file; file.openData(data, size); if(!LoadMIDI_pre()) return false; if(!m_sequencer.loadMIDI(file)) { errorStringOut = m_sequencer.getErrorString(); return false; } if(!LoadMIDI_post()) return false; return true; } #endif //OPNMIDI_DISABLE_MIDI_SEQUENCER