mirror of
https://github.com/ZDoom/ZMusic.git
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72c23d98a3
## 1.5.0 2020-09-28 * Drum note length expanding is now supported in real-time mode (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!) * Added support for OPNA chip with Neko Project II Kai YM2602 emulator usage (Thanks to [Jean Pierre Cimalando](https://github.com/jpcima) for a work!) * Added VGM file dumper which allows to output OPN2 commands into VGM file. (A new MIDI to VGM tool is now created with basing on libOPNMIDI) * Fixed an incorrect work of CC-121 (See https://github.com/Wohlstand/libADLMIDI/issues/227 for details) * Internality has been refactored and improved
95 lines
2.7 KiB
C++
95 lines
2.7 KiB
C++
/*
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* Interfaces over Yamaha OPN2 (YM2612) chip emulators
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*
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* Copyright (c) 2017-2020 Vitaly Novichkov (Wohlstand)
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "np2_opna.h"
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#include "np2/fmgen_opna.h"
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#include <new>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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template <class ChipType>
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NP2OPNA<ChipType>::NP2OPNA(OPNFamily f)
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: ChipBase(f)
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{
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ChipType *opn = (ChipType *)std::calloc(1, sizeof(ChipType));
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chip = new(opn) ChipType;
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opn->Init(ChipBase::m_clock, ChipBase::m_rate);
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opn->SetReg(0x29, 0x9f); // enable channels 4-6
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}
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template <class ChipType>
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NP2OPNA<ChipType>::~NP2OPNA()
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{
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chip->~ChipType();
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std::free(chip);
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}
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template <class ChipType>
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void NP2OPNA<ChipType>::setRate(uint32_t rate, uint32_t clock)
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{
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ChipBase::setRate(rate, clock);
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uint32_t chipRate = ChipBase::isRunningAtPcmRate() ? rate : ChipBase::nativeRate();
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chip->SetRate(clock, chipRate, false); // implies Reset()
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chip->SetReg(0x29, 0x9f); // enable channels 4-6
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}
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template <class ChipType>
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void NP2OPNA<ChipType>::reset()
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{
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ChipBase::reset();
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chip->Reset();
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chip->SetReg(0x29, 0x9f); // enable channels 4-6
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}
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template <class ChipType>
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void NP2OPNA<ChipType>::writeReg(uint32_t port, uint16_t addr, uint8_t data)
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{
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chip->SetReg((port << 8) | addr, data);
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}
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template <class ChipType>
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void NP2OPNA<ChipType>::writePan(uint16_t chan, uint8_t data)
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{
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chip->SetPan(chan, data);
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}
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template <class ChipType>
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void NP2OPNA<ChipType>::nativeGenerateN(int16_t *output, size_t frames)
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{
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std::memset(output, 0, 2 * frames * sizeof(output[0]));
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chip->Mix(output, static_cast<int>(frames));
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}
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template <>
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const char *NP2OPNA<FM::OPNA>::emulatorName()
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{
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return "Neko Project II Kai OPNA"; // git 2018-10-28 rev e1c0609
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}
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template <>
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const char *NP2OPNA<FM::OPNB>::emulatorName()
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{
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return "Neko Project II Kai OPNB"; // git 2018-10-28 rev e1c0609
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}
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// template class NP2OPNA<FM::OPN2>;
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template class NP2OPNA<FM::OPNA>;
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template class NP2OPNA<FM::OPNB>;
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