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/*
* libADLMIDI is a free Software MIDI synthesizer library with OPL3 emulation
*
* Original ADLMIDI code: Copyright (c) 2010-2014 Joel Yliluoma <bisqwit@iki.fi>
* ADLMIDI Library API: Copyright (c) 2015-2025 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 "adlmidi_midiplay.hpp"
#include "adlmidi_opl3.hpp"
#include "adlmidi_private.hpp"
#include "wopl/wopl_file.h"
std::string ADLMIDI_ErrorString;
// Generator callback on audio rate ticks
#if defined(ADLMIDI_AUDIO_TICK_HANDLER)
void adl_audioTickHandler(void *instance, uint32_t chipId, uint32_t rate)
{
reinterpret_cast<MIDIplay *>(instance)->AudioTick(chipId, rate);
}
#endif
int adlCalculateFourOpChannels(MIDIplay *play, bool silent)
{
Synth &synth = *play->m_synth;
size_t n_fourop[2] = {0, 0}, n_total[2] = {0, 0};
bool rhythmModeNeeded = false;
size_t numFourOps = 0;
//Automatically calculate how much 4-operator channels is necessary
{
//For custom bank
Synth::BankMap::iterator it = synth.m_insBanks.begin();
Synth::BankMap::iterator end = synth.m_insBanks.end();
for(; it != end; ++it)
{
size_t bank = it->first;
size_t div = (bank & Synth::PercussionTag) ? 1 : 0;
for(size_t i = 0; i < 128; ++i)
{
OplInstMeta &ins = it->second.ins[i];
if(ins.flags & OplInstMeta::Flag_NoSound)
continue;
if((ins.flags & OplInstMeta::Flag_Real4op) != 0)
++n_fourop[div];
++n_total[div];
if(div && ((ins.flags & OplInstMeta::Mask_RhythmMode) != 0))
rhythmModeNeeded = true;
}
}
}
// All 2ops (no 4ops)
if((n_fourop[0] == 0) && (n_fourop[1] == 0))
numFourOps = 0;
// All 2op melodics and Some (or All) 4op drums
else if((n_fourop[0] == 0) && (n_fourop[1] > 0))
numFourOps = 2;
// Many 4op melodics
else if((n_fourop[0] >= (n_total[0] * 7) / 8))
numFourOps = 6;
// Few 4op melodics
else if(n_fourop[0] > 0)
numFourOps = 4;
synth.m_numFourOps = static_cast<unsigned>(numFourOps * synth.m_numChips);
// Update channel categories and set up four-operator channels
if(!silent)
synth.updateChannelCategories();
// Set rhythm mode when it needed
synth.m_rhythmMode = rhythmModeNeeded;
return 0;
}
#ifndef DISABLE_EMBEDDED_BANKS
void adlFromInstrument(const BanksDump::InstrumentEntry &instIn, OplInstMeta &instOut)
{
instOut.voice2_fine_tune = 0.0;
if(instIn.secondVoiceDetune != 0)
instOut.voice2_fine_tune = (double)((((int)instIn.secondVoiceDetune + 128) >> 1) - 64) / 32.0;
instOut.midiVelocityOffset = instIn.midiVelocityOffset;
instOut.drumTone = instIn.percussionKeyNumber;
instOut.flags = (instIn.instFlags & WOPL_Ins_4op) && (instIn.instFlags & WOPL_Ins_Pseudo4op) ? OplInstMeta::Flag_Pseudo4op : 0;
instOut.flags|= (instIn.instFlags & WOPL_Ins_4op) && ((instIn.instFlags & WOPL_Ins_Pseudo4op) == 0) ? OplInstMeta::Flag_Real4op : 0;
instOut.flags|= (instIn.instFlags & WOPL_Ins_IsBlank) ? OplInstMeta::Flag_NoSound : 0;
instOut.flags|= instIn.instFlags & WOPL_RhythmModeMask;
for(size_t op = 0; op < 2; op++)
{
if((instIn.ops[(op * 2) + 0] < 0) || (instIn.ops[(op * 2) + 1] < 0))
break;
const BanksDump::Operator &op1 = g_embeddedBanksOperators[instIn.ops[(op * 2) + 0]];
const BanksDump::Operator &op2 = g_embeddedBanksOperators[instIn.ops[(op * 2) + 1]];
instOut.op[op].modulator_E862 = op1.d_E862;
instOut.op[op].modulator_40 = op1.d_40;
instOut.op[op].carrier_E862 = op2.d_E862;
instOut.op[op].carrier_40 = op2.d_40;
instOut.op[op].feedconn = (instIn.fbConn >> (op * 8)) & 0xFF;
instOut.op[op].noteOffset = static_cast<int8_t>(op == 0 ? instIn.noteOffset1 : instIn.noteOffset2);
}
instOut.soundKeyOnMs = instIn.delay_on_ms;
instOut.soundKeyOffMs = instIn.delay_off_ms;
}
#endif
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