519 lines
19 KiB
C++
519 lines
19 KiB
C++
/*
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** Command & Conquer Red Alert(tm)
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** Copyright 2025 Electronic Arts Inc.
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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 3 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
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** along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/***************************************************************************
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** C O N F I D E N T I A L --- W E S T W O O D A S S O C I A T E S **
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***************************************************************************
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* *
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* Project Name : WWLIB *
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* *
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* File Name : REDBOOK.CPP *
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* *
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* Programmer : STEVE WETHERILL (FROM SCOTT BOWEN CODE) *
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* *
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* Start Date : 5/13/94 *
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* *
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* Last Update : June 4, 1994 [SW] *
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* *
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*-------------------------------------------------------------------------*
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*-------------------------------------------------------------------------*
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* Functions: *
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* RedBookClass::~RedBookClass(VOID) *
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* RedBookClass::RedToHS(ULONG i) *
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* RedBookClass::MSFtoRed(UBYTE m, UBYTE s, UBYTE f) *
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* RedBookClass::FullCDVolume(UBYTE chan) *
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* RedBookClass::PlayTrack(UWORD track) *
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* RedBookClass::Play_CD_MSL(UWORD min_sec, UWORD len) *
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* RedBookClass::PlayMSF(UBYTE startM, UBYTE startS, UBYTE startF, *
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* UBYTE endM, UBYTE endS, UBYTE endF, UBYTE chan) *
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* RedBookClass::CheckCDMusic(VOID) *
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* RedBookClass::StopCDMusic(VOID) *
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*= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =*/
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <dos.h>
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#include "wwstd.h"
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#include "playcd.h"
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#include "wwmem.h"
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/***************************************************************************
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* RedBookClass -- default constructor *
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* *
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* *
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* *
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* INPUT: *
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* none *
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* OUTPUT: *
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* none *
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* WARNINGS: *
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* calls GetCDDrive() *
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* HISTORY: *
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* 05/25/1994 SW : Created. *
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*=========================================================================*/
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RedBookClass::RedBookClass(VOID)
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: GetCDClass() // call the base constructor
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{
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SEGSEL tmpadr ;
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tmpadr = cdDrive_addrp;
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memset ( this , 0 , sizeof ( RedBookClass ) ) ;
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cdDrive_addrp = tmpadr ;
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Stop.Length = 13;
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Stop.Command = 133;
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Tinfo.Length = 26;
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Tinfo.Command = 3;
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Tinfo.CntTrns = 7;
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Tinfo.TrInfo = 11;
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Play.Length = 22;
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Play.Command = 132;
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Play.AddrMd = 1;
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Volm.Length = 26;
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Volm.Command = 12;
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Volm.CntTrns = 9;
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Volm.TrInfo = 3;
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Volm.In1 = 1;
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Volm.In2 = 2;
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Volm.In3 = 3;
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Stat.Length = 26;
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Stat.Command = 3;
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Stat.CntTrns = 11;
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Stat.StatInfo = 15;
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if (DPMI_real_alloc(sizeof(TinfoType)/16+1, &Tinfo_addrp, &largestp))
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exit(1);
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if (DPMI_real_alloc(sizeof(StatType)/16+1, &Stat_addrp, &largestp))
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exit(1);
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if (DPMI_real_alloc(sizeof(VolmType)/16+1, &Volm_addrp, &largestp))
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exit(1);
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if (DPMI_real_alloc(sizeof(PlayType)/16+1, &Play_addrp, &largestp))
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exit(1);
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if (DPMI_real_alloc(sizeof(StopType)/16+1, &Stop_addrp, &largestp))
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exit(1);
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GetCDDrive();
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}
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/***************************************************************************
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* REDBOOKCLASS -- destructor *
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* *
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* *
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* *
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* INPUT: *
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* none *
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* OUTPUT: *
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* none *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 05/26/1994 SW : Created. *
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*=========================================================================*/
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RedBookClass::~RedBookClass(VOID)
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{
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if(Tinfo_addrp.seg)
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DPMI_real_free(Tinfo_addrp); // free up those conventional buffers
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if(Stat_addrp.seg)
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DPMI_real_free(Stat_addrp);
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if(Volm_addrp.seg)
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DPMI_real_free(Volm_addrp);
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if(Play_addrp.seg)
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DPMI_real_free(Play_addrp);
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if(Stop_addrp.seg)
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DPMI_real_free(Stop_addrp);
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}
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/***************************************************************************
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* REDTOHS -- RedBook to High-Sierra conversion *
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* *
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* *
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* *
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* INPUT: *
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* ULONG *
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* OUTPUT: *
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* ULONG *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 05/26/1994 SW : Created. *
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*=========================================================================*/
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ULONG RedBookClass::RedToHS(ULONG i)
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{
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return( ((i>>16) & 0xFF) * 60 * 75) + ( ((i>>8) & 0xFF) * 75) + (i & 0xFF);
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}
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/***************************************************************************
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* MSFTORED -- Minute, Second, Frame to RedBook conversion *
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* *
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* *
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* *
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* INPUT: *
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* UBYTE minute *
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* UBYTE second *
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* UBYTE frame *
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* OUTPUT: *
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* ULONG RedBook *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 05/26/1994 SW : Created. *
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*=========================================================================*/
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ULONG RedBookClass::MSFtoRed(UBYTE m, UBYTE s, UBYTE f)
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{
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return( ((ULONG)m << 16) + ((ULONG)s << 8) + (ULONG)f );
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}
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/***************************************************************************
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* FULLCDVOLUME -- set full volume *
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* *
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* *
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* *
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* INPUT: *
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* UBYTE channel *
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* *
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* CHLEFT *
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* CHRIGHT *
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* CHBOTH *
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* *
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* OUTPUT: *
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* none *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 05/26/1994 SW : Created. *
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*=========================================================================*/
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VOID RedBookClass::FullCDVolume(UBYTE chan)
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{
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Volm.Vol0 = Volm.Vol1 = Volm.Vol2 = Volm.Vol3 = 255;
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Volm.TrnsAdOff = offsetof (VolmType, TrInfo);
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Volm.TrnsAdSeg = Volm_addrp.seg;
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if(chan == CHLEFT)
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{
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// Volm.In0 = 0;
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// Volm.In1 = 3;
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// Volm.In2 = 3;
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// Volm.In3 = 3;
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Volm.Vol1 = 0;
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}
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else if(chan == CHRIGHT)
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{
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// Volm.In0 = 3;
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// Volm.In1 = 1;
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// Volm.In2 = 3;
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// Volm.In3 = 3;
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Volm.Vol0 = 0;
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}
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else /* both channels */
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{
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Volm.In0 = 0;
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Volm.In1 = 1;
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Volm.In2 = 2;
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Volm.In3 = 3;
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}
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// WriteRealMem(REALPTR(Volm_addrp) << 16, &Volm, sizeof(VolmType));
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Mem_Copy ( &Volm , (void *) ( Volm_addrp.seg << 4 ) , sizeof(VolmType));
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regs.x.eax = 0x1510;
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regs.x.ecx = cdDrive[0];
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regs.x.ebx = 0x0000;
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sregs.es = Volm_addrp.seg;
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DPMI_real_intr(0x2F, ®s, & sregs);
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// ReadRealMem(&Volm, REALPTR(Volm_addrp) << 16, sizeof(VolmType));
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Mem_Copy ( (void *) ( Volm_addrp . seg << 4 ), &Volm ,sizeof(VolmType));
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}
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/***************************************************************************
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* PLAYTRACK -- play a track *
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* *
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* *
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* *
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* INPUT: *
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* UWORD track *
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* OUTPUT: *
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* none *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 05/26/1994 SW : Created. *
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*=========================================================================*/
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VOID RedBookClass::PlayTrack(UWORD track)
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{
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StopCDMusic();
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Tinfo.Track = track;
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Tinfo.TrnsAdOff = offsetof (TinfoType, TrInfo);
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Tinfo.TrnsAdSeg = Tinfo_addrp.seg;
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// WriteRealMem(REALPTR(Tinfo_addrp) << 16, &Tinfo, sizeof(TinfoType));
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Mem_Copy ( &Tinfo , (void *) ( Tinfo_addrp.seg << 4 ) , sizeof(TinfoType));
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regs.x.eax = 0x1510;
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regs.x.ecx = cdDrive[0];
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regs.x.ebx = 0x0000;
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sregs.es = Tinfo_addrp.seg;
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DPMI_real_intr(0x2F, ®s, &sregs); // gets start time of track in Tinfo.Start
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// ReadRealMem(&Tinfo, REALPTR(Tinfo_addrp) << 16, sizeof(TinfoType));
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Mem_Copy ( (void *) ( Tinfo_addrp.seg << 4 ) , &Tinfo, sizeof(TinfoType));
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Play.Start = Tinfo.Start;
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Tinfo.Track++;
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Tinfo.TrnsAdOff = offsetof (TinfoType, TrInfo);
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Tinfo.TrnsAdSeg = Tinfo_addrp.seg;
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// WriteRealMem(REALPTR(Tinfo_addrp) << 16, &Tinfo, sizeof(TinfoType));
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Mem_Copy ( &Tinfo , (void *) ( Tinfo_addrp.seg << 4 ) , sizeof(TinfoType));
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regs.x.eax = 0x1510;
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regs.x.ecx = cdDrive[0];
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regs.x.ebx = 0x0000;
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sregs.es = Tinfo_addrp.seg;
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DPMI_real_intr(0x2F, ®s , &sregs); // gets start time of following track in Tinfo.Start
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// ReadRealMem(&Tinfo, REALPTR(Tinfo_addrp) << 16, sizeof(TinfoType));
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Mem_Copy ( (void *) ( Tinfo_addrp.seg << 4 ) , &Tinfo, sizeof(TinfoType));
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Play.CntSect = RedToHS(Tinfo.Start) - RedToHS(Play.Start) - 1;
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// WriteRealMem(REALPTR(Play_addrp) << 16, &Play, sizeof(PlayType));
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Mem_Copy ( &Play , (void *) ( Play_addrp.seg << 4 ) , sizeof(PlayType));
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regs.x.eax = 0x1510;
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regs.x.ecx = cdDrive[0];
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regs.x.ebx = 0x0000;
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sregs.es = Play_addrp.seg;
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DPMI_real_intr(0x2F, ®s, &sregs);
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// ReadRealMem(&Play, REALPTR(Play_addrp) << 16, sizeof(PlayType));
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Mem_Copy ( (void *) ( Play_addrp.seg << 4 ) , &Play, sizeof(PlayType));
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FullCDVolume(CHBOTH);
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}
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/***************************************************************************
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* PLAY_CD_MSL -- play cd from start min_sec for len *
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* *
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* *
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* *
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* INPUT: *
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* UWORD min_sec *
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* UWORD Len *
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* OUTPUT: *
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* none *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 05/26/1994 SW : Created. *
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*=========================================================================*/
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VOID RedBookClass::Play_CD_MSL(UWORD min_sec, UWORD len)
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{
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UWORD startM, startS, startF;
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UWORD endM, endS, endF;
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if (!len)
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return;
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endM = startM = (min_sec >> 8) + AUDIO_START_MIN;
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endS = startS = (min_sec & 0xFF) + AUDIO_START_SEC;
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startF = endF = 0;
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while (len > 59) {
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endM++;
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len -= 60;
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}
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endS += len;
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if (endS > 59) {
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endM++;
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endS -= 60;
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}
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PlayMSF((UBYTE) startM, (UBYTE)startS, (UBYTE)startF, (UBYTE)endM, (UBYTE)endS, (UBYTE)endF, 2 /* chan */);
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}
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/***************************************************************************
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* PlayMSF -- Play Minute, Second, Frame to Minute, Second, Frame *
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* *
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* *
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* *
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* INPUT: *
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* UBYTE startM *
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* UBYTE startS *
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* UBYTE startF *
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* UBYTE endM *
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* UBYTE endS *
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* UBYTE endF *
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* UBYTE chan *
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* OUTPUT: *
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* none *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 05/27/1994 SW : Created. *
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*=========================================================================*/
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VOID RedBookClass::PlayMSF(UBYTE startM, UBYTE startS, UBYTE startF, UBYTE endM, UBYTE endS, UBYTE endF, UBYTE chan)
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{
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Play.Start = MSFtoRed(startM, startS, startF);
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Play.CntSect = RedToHS(MSFtoRed(endM, endS, endF)) - RedToHS(Play.Start) - 1;
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// WriteRealMem(REALPTR(Play_addrp) << 16, &Play, sizeof(PlayType));
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Mem_Copy ( &Play , (void *) ( Play_addrp.seg << 4 ) , sizeof(PlayType));
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regs.x.eax = 0x1510;
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regs.x.ecx = cdDrive[0];
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regs.x.ebx = offsetof (PlayType, Length);
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sregs.es = Play_addrp.seg;
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DPMI_real_intr(0x2F, ®s, &sregs);
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// ReadRealMem(&Play, REALPTR(Play_addrp) << 16, sizeof(PlayType));
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Mem_Copy ( (void *) ( Play_addrp.seg << 4 ) , &Play, sizeof(PlayType));
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FullCDVolume(chan);
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}
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/***************************************************************************
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* CheckCDMusic -- Check for CD playing *
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* *
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* *
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* *
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* INPUT: *
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* UBYTE startM *
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* UBYTE startS *
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* UBYTE startF *
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* UBYTE endM *
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* UBYTE endS *
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* UBYTE endF *
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* UBYTE chan *
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* OUTPUT: *
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* UWORD TRUE if playing else FALSE *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 05/27/1994 SW : Created. *
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*=========================================================================*/
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UWORD RedBookClass::CheckCDMusic(VOID)
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{
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Stat.TrnsAdOff = offsetof (StatType, StatInfo);
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Stat.TrnsAdSeg = Stat_addrp.seg;
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// WriteRealMem(REALPTR(Stat_addrp) << 16, &Stat, sizeof(StatType));
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Mem_Copy ( &Stat , (void *) ( Stat_addrp.seg << 4 ) , sizeof(StatType));
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regs.x.ecx = cdDrive[0];
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regs.x.ebx = offsetof (StatType, Length);
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regs.x.eax = 0x1510;
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sregs.es = Stat_addrp.seg;
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DPMI_real_intr(0x2F, ®s, &sregs);
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// ReadRealMem(&Stat, REALPTR(Stat_addrp) << 16, sizeof(StatType));
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Mem_Copy ( (void *) ( Stat_addrp.seg << 4 ) , &Stat, sizeof(StatType));
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return (Stat.Status&0x200);
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}
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/***************************************************************************
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* STOPCDMUSIC -- stop CD playing *
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* *
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* *
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* *
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* INPUT: *
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* none *
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* OUTPUT: *
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* none *
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* WARNINGS: *
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* *
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* HISTORY: *
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* 05/27/1994 SW : Created. *
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*=========================================================================*/
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VOID RedBookClass::StopCDMusic(VOID)
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{
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// WriteRealMem(REALPTR(Stop_addrp) << 16, &Stop, sizeof(StopType));
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Mem_Copy ( &Stop , (void *) ( Stop_addrp.seg << 4 ) , sizeof(StopType));
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regs.x.eax = 0x1510;
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regs.x.ecx = cdDrive[0];
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regs.x.ebx = offsetof (StopType, Length);
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sregs.es = Stop_addrp.seg;
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DPMI_real_intr(0x2F, ®s, &sregs);
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// ReadRealMem(&Stop, REALPTR(Stop_addrp) << 16, sizeof(StopType));
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Mem_Copy ( (void *) ( Stop_addrp.seg << 4 ) , &Stop, sizeof(StopType));
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}
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