mirror of
https://github.com/ZDoom/gzdoom-gles.git
synced 2024-12-12 05:11:45 +00:00
87d46ddd11
## 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
84 lines
2 KiB
C++
84 lines
2 KiB
C++
/*
|
|
* Interfaces over Yamaha OPN2 (YM2612) chip emulators
|
|
*
|
|
* Copyright (c) 2017-2020 Vitaly Novichkov (Wohlstand)
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "gx_opn2.h"
|
|
#include <cstring>
|
|
|
|
#include "gx/gx_ym2612.h"
|
|
|
|
GXOPN2::GXOPN2(OPNFamily f)
|
|
: OPNChipBaseT(f),
|
|
m_chip(YM2612GXAlloc()),
|
|
m_framecount(0)
|
|
{
|
|
YM2612GXInit(m_chip);
|
|
YM2612GXConfig(m_chip, YM2612_DISCRETE);
|
|
setRate(m_rate, m_clock);
|
|
}
|
|
|
|
GXOPN2::~GXOPN2()
|
|
{
|
|
YM2612GXFree(m_chip);
|
|
}
|
|
|
|
void GXOPN2::setRate(uint32_t rate, uint32_t clock)
|
|
{
|
|
OPNChipBaseT::setRate(rate, clock);
|
|
YM2612GXResetChip(m_chip);
|
|
}
|
|
|
|
void GXOPN2::reset()
|
|
{
|
|
OPNChipBaseT::reset();
|
|
YM2612GXResetChip(m_chip);
|
|
}
|
|
|
|
void GXOPN2::writeReg(uint32_t port, uint16_t addr, uint8_t data)
|
|
{
|
|
YM2612GXWrite(m_chip, 0 + port * 2, addr);
|
|
YM2612GXWrite(m_chip, 1 + port * 2, data);
|
|
}
|
|
|
|
void GXOPN2::writePan(uint16_t chan, uint8_t data)
|
|
{
|
|
YM2612GXWritePan(m_chip, chan, data);
|
|
}
|
|
|
|
void GXOPN2::nativePreGenerate()
|
|
{
|
|
YM2612GXPreGenerate(m_chip);
|
|
m_framecount = 0;
|
|
}
|
|
|
|
void GXOPN2::nativePostGenerate()
|
|
{
|
|
YM2612GXPostGenerate(m_chip, m_framecount);
|
|
}
|
|
|
|
void GXOPN2::nativeGenerate(int16_t *frame)
|
|
{
|
|
YM2612GXGenerateOneNative(m_chip, frame);
|
|
++m_framecount;
|
|
}
|
|
|
|
const char *GXOPN2::emulatorName()
|
|
{
|
|
return "Genesis Plus GX";
|
|
}
|