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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
* This program 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 General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
/*
* This code is based on original Soltys source code
* Copyright (c) 1994-1995 Janus B. Wisniewski and L.K. Avalon
*/
// ******************************************************
// * Sound Driver by Hedges (c) 1995 LK AVALON *
// * Ver 1.00: 01-Mar-95 *
// * Ver 1.10: 03-Mar-95 *
// * Ver 1.20: 07-Mar-95 *
// * Ver 1.30: 09-Mar-95 *
// * Ver 1.40: 11-Mar-95 *
// ******************************************************
#ifndef __CGE_SNDDRV__
#define __CGE_SNDDRV__
namespace CGE {
// ******************************************************
// * Constants *
// ******************************************************
// available devices
enum DEV_TYPE { DEV_AUTO = -1, // auto-detect mode
DEV_QUIET, // disable sound
DEV_SB, // sb/pro/16/awe32
DEV_GUS, // gus/max
DEV_GM // general midi
};
#define SERR_OK 0 // no error
#define SERR_INITFAIL 1 // couldn't initialize
#define SERR_BADDDEV 128 // bad device
// driver info
struct DrvInfo {
DEV_TYPE _dDev; // digi device
DEV_TYPE _mDev; // midi device
uint16 _dBase; // digi base port
uint16 _dDma; // digi dma no
uint16 _dIrq; // digi irq no
uint16 _mBase; // midi base port
union {
struct {
uint16 _dr : 4;
uint16 _dl : 4;
uint16 _mr : 4;
uint16 _ml : 4;
} Vol4;
struct {
uint8 _d; // digi volume
uint8 _m; // midi volume
} Vol2;
};
};
// sample info
struct SmpInfo {
uint8 *_saddr; // address
uint16 _slen; // length
uint16 _span; // left/right pan (0-15)
int _sflag; // flag
};
// ******************************************************
// * Data *
// ******************************************************
// driver info
extern DrvInfo _sndDrvInfo;
// midi player flag (1 means we are playing)
extern uint16 _midiPlayFlag;
// midi song end flag (1 means we have crossed end mark)
extern uint16 _midiEndFlag;
// ******************************************************
// * Driver Code *
// ******************************************************
// Init Digi Device
void sndInit();
// Close Digi Device
void sndDone();
// Set Volume
void sndSetVolume();
// Start Digi
void sndDigiStart(SmpInfo *PSmpInfo);
// Stop Digi
void sndDigiStop(SmpInfo *PSmpInfo);
// Start MIDI File
void sndMidiStart(uint8 *MIDFile);
// Stop MIDI File
void sndMidiStop();
// Play MIDI File (to be called while interrupting)
// WARNING: Uses ALL registers!
void sndMidiPlay();
} // End of namespace CGE
#endif
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