mirror of
https://github.com/RetroDECK/Supermodel.git
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104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
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/**
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** Supermodel
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** A Sega Model 3 Arcade Emulator.
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** Copyright 2011 Bart Trzynadlowski
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**
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** This file is part of Supermodel.
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**
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** Supermodel is free software: you can redistribute it and/or modify it under
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** the terms of the GNU General Public License as published by the Free
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** Software Foundation, either version 3 of the License, or (at your option)
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** any later version.
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**
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** Supermodel is distributed in the hope that it will be useful, but WITHOUT
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** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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** FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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** more details.
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**
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** You should have received a copy of the GNU General Public License along
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** with Supermodel. If not, see <http://www.gnu.org/licenses/>.
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**/
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/*
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* SoundBoard.h
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*
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* Header file defining the CSoundBoard class: Model 3 audio subsystem.
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*/
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#ifndef INCLUDED_SOUNDBOARD_H
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#define INCLUDED_SOUNDBOARD_H
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/*
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* CSoundBoard:
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*
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* Model 3 sound board (68K CPU + 2 x SCSP).
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*/
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class CSoundBoard
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{
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public:
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/*
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* WriteMIDIPort(data):
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*
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* Writes to the sound board MIDI port.
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*
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* Parameters:
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* data Byte to write to MIDI port.
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*/
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void WriteMIDIPort(UINT8 data);
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/*
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* RunFrame(void):
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*
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* Runs the sound board for one frame, updating sound in the process.
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*/
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void RunFrame(void);
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/*
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* Reset(void):
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*
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* Resets the sound board.
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*/
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void Reset(void);
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/*
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* Init(soundROMPtr, sampleROMPtr):
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*
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* One-time initialization. Must be called prior to all other members.
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*
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* Parameters:
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* soundROMPtr Pointer to sound ROM (68K program).
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* sampleROMPtr Pointer to sample ROM.
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* ppcIRQObjectPtr Pointer to PowerPC-side IRQ object.
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* soundIRQBit IRQ bit mask to use for sound board PowerPC IRQs.
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*
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* Returns:
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* OKAY if successful, FAIL if unable to allocate memory. Prints own
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* error messages.
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*/
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BOOL Init(const UINT8 *soundROMPtr, const UINT8 *sampleROMPtr, CIRQ *ppcIRQObjectPtr, unsigned soundIRQBit);
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/*
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* CSoundBoard(void):
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* ~CSoundBoard(void):
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*
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* Constructor and destructor.
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*/
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CSoundBoard(void);
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~CSoundBoard(void);
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private:
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// PowerPC IRQ controller
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CIRQ *ppcIRQ;
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unsigned ppcSoundIRQBit;
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// Sound board memory
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const UINT8 *soundROM; // 68K program ROM (passed in from parent object)
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const UINT8 *sampleROM; // 68K sample ROM (passed in from parent object)
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UINT8 *memoryPool; // single allocated region for all sound board RAM
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UINT8 *ram1, *ram2; // SCSP1 and SCSP2 RAM
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};
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#endif // INCLUDED_SOUNDBOARD_H
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