mirror of
https://github.com/libretro/scummvm.git
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131 lines
4.2 KiB
C++
131 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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; 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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*/
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/*
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* This code is based on original Soltys source code
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* Copyright (c) 1994-1995 Janus B. Wisniewski and L.K. Avalon
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*/
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// ******************************************************
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// * Sound Driver by Hedges (c) 1995 LK AVALON *
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// * Ver 1.00: 01-Mar-95 *
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// * Ver 1.10: 03-Mar-95 *
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// * Ver 1.20: 07-Mar-95 *
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// * Ver 1.30: 09-Mar-95 *
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// * Ver 1.40: 11-Mar-95 *
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// ******************************************************
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#ifndef __SNDDRV__
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#define __SNDDRV__
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namespace CGE {
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// ******************************************************
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// * Constants *
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// ******************************************************
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// available devices
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enum DEV_TYPE { DEV_AUTO = -1, // auto-detect mode
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DEV_QUIET, // disable sound
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DEV_SB, // sb/pro/16/awe32
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DEV_GUS, // gus/max
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DEV_GM // general midi
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};
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#define SERR_OK 0 // no error
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#define SERR_INITFAIL 1 // couldn't initialize
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#define SERR_BADDDEV 128 // bad device
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// driver info
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struct DRVINFO {
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DEV_TYPE DDEV; // digi device
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DEV_TYPE MDEV; // midi device
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uint16 DBASE; // digi base port
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uint16 DDMA; // digi dma no
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uint16 DIRQ; // digi irq no
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uint16 MBASE; // midi base port
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union {
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struct {
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uint16 DR : 4;
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uint16 DL : 4;
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uint16 MR : 4;
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uint16 ML : 4;
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} VOL4;
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struct {
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uint8 D; // digi volume
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uint8 M; // midi volume
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} VOL2;
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};
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};
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// sample info
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struct SMPINFO {
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uint8 *saddr; // address
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uint16 slen; // length
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uint16 span; // left/right pan (0-15)
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int sflag; // flag
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};
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// ******************************************************
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// * Data *
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// ******************************************************
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// driver info
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extern DRVINFO SNDDrvInfo;
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// midi player flag (1 means we are playing)
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extern uint16 MIDIPlayFlag;
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// midi song end flag (1 means we have crossed end mark)
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extern uint16 MIDIEndFlag;
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// ******************************************************
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// * Driver Code *
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// ******************************************************
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// Init Digi Device
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void SNDInit();
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// Close Digi Device
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void SNDDone();
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// Set Volume
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void SNDSetVolume();
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// Start Digi
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void SNDDigiStart(SMPINFO *PSmpInfo);
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// Stop Digi
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void SNDDigiStop(SMPINFO *PSmpInfo);
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// Start MIDI File
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void SNDMIDIStart(uint8 *MIDFile);
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// Stop MIDI File
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void SNDMIDIStop();
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// Play MIDI File (to be called while interrupting)
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// WARNING: Uses ALL registers!
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void SNDMIDIPlay();
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} // End of namespace CGE
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#endif
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