ref: 50492913a5bc5186c79471e14e85ce513c271204
dir: /Game/src/audiolib/_sndscap.h/
/* Copyright (C) 1994-1995 Apogee Software, Ltd. 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /********************************************************************** module: _SNDSCAP.H author: James R. Dose date: October 26, 1994 Private header for SNDSCAPE.C (c) Copyright 1994 James R. Dose. All Rights Reserved. **********************************************************************/ #ifndef ___SNDSCAP_H #define ___SNDSCAP_H #define VALID ( 1 == 1 ) #define INVALID ( !VALID ) #define TRUE ( 1 == 1 ) #define FALSE ( !TRUE ) #define lobyte( num ) ( ( int )*( ( char * )&( num ) ) ) #define hibyte( num ) ( ( int )*( ( ( char * )&( num ) ) + 1 ) ) #define STEREO 1 #define SIXTEEN_BIT 2 #define MONO_8BIT 0 #define STEREO_8BIT ( STEREO ) #define MONO_16BIT ( SIXTEEN_BIT ) #define STEREO_16BIT ( STEREO | SIXTEEN_BIT ) #define SOUNDSCAPE_MaxMixMode STEREO_16BIT #define MONO_8BIT_SAMPLE_SIZE 1 #define MONO_16BIT_SAMPLE_SIZE 2 #define STEREO_8BIT_SAMPLE_SIZE ( 2 * MONO_8BIT_SAMPLE_SIZE ) #define STEREO_16BIT_SAMPLE_SIZE ( 2 * MONO_16BIT_SAMPLE_SIZE ) #define SOUNDSCAPE_DefaultSampleRate 11000 #define SOUNDSCAPE_DefaultMixMode MONO_8BIT #define SOUNDSCAPE_MaxIrq 15 /* Ensoniq gate-array chip defines ... */ #define ODIE 0 /* ODIE gate array */ #define OPUS 1 /* OPUS gate array */ #define MMIC 2 /* MiMIC gate array */ /* relevant direct register defines - offsets from base address */ #define GA_HOSTCSTAT 2 /* host port ctrl/stat reg */ #define GA_HOSTDATA 3 /* host port data reg */ #define GA_REGADDR 4 /* indirect address reg */ #define GA_REGDATA 5 /* indirect data reg */ #define SB_IACK 0x22e /* SoundBlaster IACK register */ /* relevant indirect register defines */ #define GA_DMACHB 3 /* DMA chan B assign reg */ #define GA_INTCFG 4 /* interrupt configuration reg */ #define GA_DMACFG 5 /* DMA config reg */ #define GA_CDCFG 6 /* CD-ROM (AD-1848) config reg */ #define GA_HMCTL 9 /* host master control reg */ #define GA_CHIPSEL 10 /* programmable external chip select */ /* AD-1848 chip defines ... */ /* relevant direct register defines */ #define AD_REGADDR 0 /* indirect address reg */ #define AD_REGDATA 1 /* indirect data reg */ #define AD_STATUS 2 /* status register */ #define AD_OFFSET 8 /* for some boards, a fixed BasePort offset */ /* relevant indirect register defines */ #define AD_LEFTOUT 6 /* left DAC output control reg */ #define AD_RIGHTOUT 7 /* right DAC output control reg */ #define AD_FORMAT 8 /* clock and data format reg */ #define AD_CONFIG 9 /* interface config register */ #define AD_PINCTRL 10 /* external pin control reg */ #define AD_UCOUNT 14 /* upper count reg */ #define AD_LCOUNT 15 /* lower count reg */ /* some firmware command and communication defines */ #define SET_CTL 0x88 /* set a control value */ #define GET_CTL 0x89 /* get a control value */ #define SET_REV 0xb0 /* set synth reverb */ #define SYNTH_VOL 0x04 /* Synth Vol control number */ #define RXRDY 0x01 /* Receive-Ready bit mask */ #define TXRDY 0x02 /* Transmit-Ready bit mask */ /* some miscellaneous defines ... soundscape reg values, sytem int regs, ... */ #define INTCONT1 0x20 /* Interrupt Controller 1 control register */ #define INTCONT2 0xa0 /* Interrupt Controller 2 control register */ #define INTMASK1 0x21 /* Interrupt Controller 1 mask register */ #define INTMASK2 0xa1 /* Interrupt Controller 2 mask register */ #define VECTBASE1 0x08 /* vector base for XT interrupts */ #define VECTBASE2 0x70 /* vector base for AT extended interrupts */ #define EOI 0x20 /* End Of Interrupt command */ #define AUTO_OUT 0x58 /* DMA controller mode */ static void SOUNDSCAPE_EnableInterrupt( void ); static void SOUNDSCAPE_DisableInterrupt( void ); static void __interrupt __far SOUNDSCAPE_ServiceInterrupt( void ); static int ga_read( int rnum ); static void ga_write( int rnum, int value ); static int ad_read( int rnum ); static void ad_write( int rnum, int value ); static void tdelay( void ); static void pcm_format( void ); static int SOUNDSCAPE_SetupDMABuffer( char *BufferPtr, int BufferSize, int mode ); static int SOUNDSCAPE_BeginPlayback( int length ); static void SOUNDSCAPE_LockEnd( void ); static void SOUNDSCAPE_UnlockMemory( void ); static int SOUNDSCAPE_LockMemory( void ); static unsigned short allocateTimerStack( unsigned short size ); static void deallocateTimerStack( unsigned short selector ); static int parse( char *val, char *str, FILE *p1 ); static int SOUNDSCAPE_FindCard( void ); static int SOUNDSCAPE_Setup( void ); #endif