mirror of
https://github.com/ZDoom/ZMusic.git
synced 2024-12-02 16:42:32 +00:00
faa997b986
Changelog: * Added an ability to disable the automatical arpeggio * Updated the GENS chip emulator from the 2.10 into GS/II (thanks to @freq-mod for the help) * Added an ability to set number of loops * Added an ability to disable/enable playing of selected MIDI channels * Fixed memory damages and crashes while playing XMI files * Added the chip channels allocation mode option * Fixed the playback of multi-song XMI files * Added an ability to switch the XMI song on the fly And also: * Fixed the work on big endian processors * Fixed ARM64 build on some platforms * Improved support of the EA-MUS files (Thanks to [dashodanger](https://github.com/dashodanger)) * Fixed crash on attempt to change the volume of a blank note
84 lines
2 KiB
C++
84 lines
2 KiB
C++
/*
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* Interfaces over Yamaha OPN2 (YM2612) chip emulators
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*
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* Copyright (c) 2017-2022 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 "gx_opn2.h"
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#include <cstring>
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#include "gx/gx_ym2612.h"
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GXOPN2::GXOPN2(OPNFamily f)
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: OPNChipBaseT(f),
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m_chip(YM2612GXAlloc()),
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m_framecount(0)
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{
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YM2612GXInit(m_chip);
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YM2612GXConfig(m_chip, YM2612_DISCRETE);
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setRate(m_rate, m_clock);
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}
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GXOPN2::~GXOPN2()
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{
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YM2612GXFree(m_chip);
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}
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void GXOPN2::setRate(uint32_t rate, uint32_t clock)
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{
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OPNChipBaseT::setRate(rate, clock);
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YM2612GXResetChip(m_chip);
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}
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void GXOPN2::reset()
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{
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OPNChipBaseT::reset();
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YM2612GXResetChip(m_chip);
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}
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void GXOPN2::writeReg(uint32_t port, uint16_t addr, uint8_t data)
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{
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YM2612GXWrite(m_chip, 0 + port * 2, addr);
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YM2612GXWrite(m_chip, 1 + port * 2, data);
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}
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void GXOPN2::writePan(uint16_t chan, uint8_t data)
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{
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YM2612GXWritePan(m_chip, chan, data);
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}
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void GXOPN2::nativePreGenerate()
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{
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YM2612GXPreGenerate(m_chip);
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m_framecount = 0;
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}
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void GXOPN2::nativePostGenerate()
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{
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YM2612GXPostGenerate(m_chip, m_framecount);
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}
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void GXOPN2::nativeGenerate(int16_t *frame)
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{
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YM2612GXGenerateOneNative(m_chip, frame);
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++m_framecount;
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}
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const char *GXOPN2::emulatorName()
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{
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return "Genesis Plus GX";
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}
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