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ID_SD.H
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205
ID_SD.H
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/* Catacomb 3-D Source Code
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* Copyright (C) 1993-2014 Flat Rock Software
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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 2 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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//
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// ID Engine
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// ID_SD.h - Sound Manager Header
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// v1.0d1
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// By Jason Blochowiak
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//
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#ifndef __TYPES__
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#include "ID_Types.h"
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#endif
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#ifndef __ID_SD__
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#define __ID_SD__
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#ifdef __DEBUG__
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#define __DEBUG_SoundMgr__
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#endif
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#define TickBase 70 // 70Hz per tick - used as a base for timer 0
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typedef enum {
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sdm_Off,
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sdm_PC,sdm_AdLib,
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} SDMode;
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typedef enum {
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smm_Off,smm_AdLib
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} SMMode;
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typedef struct
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{
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longword length;
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word priority;
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} SoundCommon;
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// PC Sound stuff
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#define pcTimer 0x42
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#define pcTAccess 0x43
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#define pcSpeaker 0x61
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#define pcSpkBits 3
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typedef struct
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{
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SoundCommon common;
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byte data[1];
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} PCSound;
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// Registers for the Sound Blaster card - needs to be offset by n0
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#define sbReset 0x206
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#define sbReadData 0x20a
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#define sbWriteCmd 0x20c
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#define sbWriteData 0x20c
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#define sbWriteStat 0x20c
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#define sbDataAvail 0x20e
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typedef struct
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{
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SoundCommon common;
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word hertz;
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byte bits,
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reference,
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data[1];
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} SampledSound;
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// Registers for the AdLib card
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// Operator stuff
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#define alChar 0x20
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#define alScale 0x40
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#define alAttack 0x60
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#define alSus 0x80
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#define alWave 0xe0
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// Channel stuff
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#define alFreqL 0xa0
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#define alFreqH 0xb0
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#define alFeedCon 0xc0
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// Global stuff
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#define alEffects 0xbd
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typedef struct
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{
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byte mChar,cChar,
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mScale,cScale,
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mAttack,cAttack,
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mSus,cSus,
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mWave,cWave,
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nConn,
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// These are only for Muse - these bytes are really unused
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voice,
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mode,
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unused[3];
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} Instrument;
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typedef struct
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{
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SoundCommon common;
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Instrument inst;
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byte block,
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data[1];
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} AdLibSound;
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//
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// Sequencing stuff
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//
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#define sqMaxTracks 10
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#define sqMaxMoods 1 // DEBUG
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#define sev_Null 0 // Does nothing
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#define sev_NoteOff 1 // Turns a note off
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#define sev_NoteOn 2 // Turns a note on
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#define sev_NotePitch 3 // Sets the pitch of a currently playing note
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#define sev_NewInst 4 // Installs a new instrument
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#define sev_NewPerc 5 // Installs a new percussive instrument
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#define sev_PercOn 6 // Turns a percussive note on
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#define sev_PercOff 7 // Turns a percussive note off
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#define sev_SeqEnd -1 // Terminates a sequence
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// Flags for MusicGroup.flags
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#define sf_Melodic 0
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#define sf_Percussive 1
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#if 1
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typedef struct
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{
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word length,
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values[1];
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} MusicGroup;
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#else
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typedef struct
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{
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word flags,
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count,
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offsets[1];
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} MusicGroup;
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#endif
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typedef struct
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{
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/* This part needs to be set up by the user */
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word mood,far *moods[sqMaxMoods];
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/* The rest is set up by the code */
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Instrument inst;
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boolean percussive;
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word far *seq;
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longword nextevent;
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} ActiveTrack;
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#define sqmode_Normal 0
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#define sqmode_FadeIn 1
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#define sqmode_FadeOut 2
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#define sqMaxFade 64 // DEBUG
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// Global variables
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extern boolean AdLibPresent,
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NeedsMusic; // For Caching Mgr
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extern SDMode SoundMode;
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extern SMMode MusicMode;
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extern longword TimeCount; // Global time in ticks
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// Function prototypes
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extern void SD_Startup(void),
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SD_Shutdown(void),
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SD_Default(boolean gotit,SDMode sd,SMMode sm),
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SD_PlaySound(soundnames sound),
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SD_StopSound(void),
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SD_WaitSoundDone(void),
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SD_StartMusic(MusicGroup far *music),
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SD_MusicOn(void),
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SD_MusicOff(void),
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SD_FadeOutMusic(void),
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SD_SetUserHook(void (*hook)(void));
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extern boolean SD_MusicPlaying(void),
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SD_SetSoundMode(SDMode mode),
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SD_SetMusicMode(SMMode mode);
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extern word SD_SoundPlaying(void);
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#ifdef _MUSE_ // MUSE Goes directly to the lower level routines
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extern void SDL_PCPlaySound(PCSound far *sound),
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SDL_PCStopSound(void),
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SDL_ALPlaySound(AdLibSound far *sound),
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SDL_ALStopSound(void);
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#endif
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#endif
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