138 lines
4.2 KiB
C++
138 lines
4.2 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef NUVIE_SOUND_ADPLUG_FM_OPL_H
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#define NUVIE_SOUND_ADPLUG_FM_OPL_H
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#include "common/scummsys.h"
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namespace Ultima {
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namespace Nuvie {
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#define HAS_YM3812 1
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#define HAS_YM3526 0
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#define HAS_Y8950 0
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/* --- select emulation chips --- */
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#define BUILD_YM3812 (HAS_YM3812)
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#define BUILD_YM3526 (HAS_YM3526)
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#define BUILD_Y8950 (HAS_Y8950)
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/* select output bits size of output : 8 or 16 */
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#define OPL_SAMPLE_BITS 16
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#if (OPL_SAMPLE_BITS==16)
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typedef int16 OPLSAMPLE;
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#endif
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#if (OPL_SAMPLE_BITS==8)
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typedef int8 OPLSAMPLE;
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#endif
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typedef void (*OPL_TIMERHANDLER)(int channel, double interval_Sec);
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typedef void (*OPL_IRQHANDLER)(int param, int irq);
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typedef void (*OPL_UPDATEHANDLER)(int param, int min_interval_us);
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typedef void (*OPL_PORTHANDLER_W)(int param, unsigned char data);
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typedef unsigned char (*OPL_PORTHANDLER_R)(int param);
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#if BUILD_YM3812
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int YM3812Init(int num, int clock, int rate);
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void YM3812Shutdown(void);
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void YM3812ResetChip(int which);
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int YM3812Write(int which, int a, int v);
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unsigned char YM3812Read(int which, int a);
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int YM3812TimerOver(int which, int c);
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void YM3812UpdateOne(int which, int16 *buffer, int length);
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void YM3812SetTimerHandler(int which, OPL_TIMERHANDLER TimerHandler, int channelOffset);
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void YM3812SetIRQHandler(int which, OPL_IRQHANDLER IRQHandler, int param);
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void YM3812SetUpdateHandler(int which, OPL_UPDATEHANDLER UpdateHandler, int param);
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#endif
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#if BUILD_YM3526
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/*
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** Initialize YM3526 emulator(s).
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**
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** 'num' is the number of virtual YM3526's to allocate
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** 'clock' is the chip clock in Hz
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** 'rate' is sampling rate
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*/
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int YM3526Init(int num, int clock, int rate);
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/* shutdown the YM3526 emulators*/
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void YM3526Shutdown(void);
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void YM3526ResetChip(int which);
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int YM3526Write(int which, int a, int v);
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unsigned char YM3526Read(int which, int a);
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int YM3526TimerOver(int which, int c);
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/*
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** Generate samples for one of the YM3526's
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**
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** 'which' is the virtual YM3526 number
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** '*buffer' is the output buffer pointer
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** 'length' is the number of samples that should be generated
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*/
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void YM3526UpdateOne(int which, int16 *buffer, int length);
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void YM3526SetTimerHandler(int which, OPL_TIMERHANDLER TimerHandler, int channelOffset);
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void YM3526SetIRQHandler(int which, OPL_IRQHANDLER IRQHandler, int param);
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void YM3526SetUpdateHandler(int which, OPL_UPDATEHANDLER UpdateHandler, int param);
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#endif
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} // End of namespace Nuvie
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} // End of namespace Ultima
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#if BUILD_Y8950
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#include "ymdeltat.h"
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namespace Ultima {
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namespace Nuvie {
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/* Y8950 port handlers */
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void Y8950SetPortHandler(int which, OPL_PORTHANDLER_W PortHandler_w, OPL_PORTHANDLER_R PortHandler_r, int param);
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void Y8950SetKeyboardHandler(int which, OPL_PORTHANDLER_W KeyboardHandler_w, OPL_PORTHANDLER_R KeyboardHandler_r, int param);
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void Y8950SetDeltaTMemory(int which, void *deltat_rom, int deltat_rom_size);
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int Y8950Init(int num, int clock, int rate);
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void Y8950Shutdown(void);
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void Y8950ResetChip(int which);
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int Y8950Write(int which, int a, int v);
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unsigned char Y8950Read(int which, int a);
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int Y8950TimerOver(int which, int c);
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void Y8950UpdateOne(int which, int16 *buffer, int length);
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void Y8950SetTimerHandler(int which, OPL_TIMERHANDLER TimerHandler, int channelOffset);
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void Y8950SetIRQHandler(int which, OPL_IRQHANDLER IRQHandler, int param);
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void Y8950SetUpdateHandler(int which, OPL_UPDATEHANDLER UpdateHandler, int param);
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} // End of namespace Nuvie
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} // End of namespace Ultima
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#endif
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#endif
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