mirror of
https://github.com/ZDoom/gzdoom-gles.git
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90 lines
2.4 KiB
C++
90 lines
2.4 KiB
C++
/*
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* Interfaces over Yamaha OPL3 (YMF262) 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 "dosbox_opl3.h"
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#include "dosbox/dbopl.h"
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#include <new>
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#include <cstdlib>
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#include <assert.h>
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DosBoxOPL3::DosBoxOPL3() :
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OPLChipBaseBufferedT(),
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m_chip(new DBOPL::Handler)
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{
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reset();
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}
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DosBoxOPL3::~DosBoxOPL3()
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{
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DBOPL::Handler *chip_r = reinterpret_cast<DBOPL::Handler*>(m_chip);
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delete chip_r;
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}
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void DosBoxOPL3::globalPreInit()
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{
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DBOPL::InitTables();
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}
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void DosBoxOPL3::setRate(uint32_t rate)
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{
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OPLChipBaseBufferedT::setRate(rate);
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DBOPL::Handler *chip_r = reinterpret_cast<DBOPL::Handler*>(m_chip);
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chip_r->~Handler();
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new(chip_r) DBOPL::Handler;
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chip_r->Init(effectiveRate());
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}
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void DosBoxOPL3::reset()
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{
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OPLChipBaseBufferedT::reset();
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DBOPL::Handler *chip_r = reinterpret_cast<DBOPL::Handler*>(m_chip);
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chip_r->~Handler();
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new(chip_r) DBOPL::Handler;
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chip_r->Init(effectiveRate());
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}
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void DosBoxOPL3::writeReg(uint16_t addr, uint8_t data)
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{
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DBOPL::Handler *chip_r = reinterpret_cast<DBOPL::Handler*>(m_chip);
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chip_r->WriteReg(static_cast<Bit32u>(addr), data);
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}
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void DosBoxOPL3::writePan(uint16_t addr, uint8_t data)
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{
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DBOPL::Handler *chip_r = reinterpret_cast<DBOPL::Handler*>(m_chip);
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chip_r->WritePan(static_cast<Bit32u>(addr), data);
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}
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void DosBoxOPL3::nativeGenerateN(int16_t *output, size_t frames)
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{
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DBOPL::Handler *chip_r = reinterpret_cast<DBOPL::Handler*>(m_chip);
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Bitu frames_i = frames;
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chip_r->GenerateArr(output, &frames_i);
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}
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const char *DosBoxOPL3::emulatorName()
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{
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return "DOSBox 0.74-r4111 OPL3";
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}
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OPLChipBase::ChipType DosBoxOPL3::chipType()
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{
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return CHIPTYPE_OPL3;
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}
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