mirror of https://github.com/PCSX2/pcsx2.git
849 lines
24 KiB
C
849 lines
24 KiB
C
/***************************************************************************
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cdr.c - description
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-------------------
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begin : Sun Nov 16 2003
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copyright : (C) 2003 by Pete Bernert
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email : BlackDove@addcom.de
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***************************************************************************/
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/***************************************************************************
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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. See also the license.txt file for *
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* additional informations. *
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* *
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***************************************************************************/
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//*************************************************************************//
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// History of changes:
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//
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// 2004/12/25 - Pete
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// - added an hack in CDVDgetTD for big dvds
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//
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// 2003/11/16 - Pete
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// - generic cleanup for the Peops cdvd release
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//
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//*************************************************************************//
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/////////////////////////////////////////////////////////
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#include "stdafx.h"
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#include <time.h>
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#include "resource.h"
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#define _IN_CDR
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#include "externals.h"
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#include "libiso.h"
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#ifdef DBGOUT
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#define SMALLDEBUG 1
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#include <dbgout.h>
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#endif
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/////////////////////////////////////////////////////////
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// PCSX2 CDVD interface:
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EXPORT_GCC char * CALLBACK PS2EgetLibName();
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EXPORT_GCC unsigned long CALLBACK PS2EgetLibType();
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EXPORT_GCC unsigned long CALLBACK PS2EgetLibVersion2(unsigned long type);
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EXPORT_GCC long CALLBACK CDVDinit();
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EXPORT_GCC void CALLBACK CDVDshutdown();
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EXPORT_GCC long CALLBACK CDVDopen();
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EXPORT_GCC void CALLBACK CDVDclose();
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EXPORT_GCC long CALLBACK CDVDtest();
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EXPORT_GCC long CALLBACK CDVDreadTrack(unsigned long lsn, int mode);
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EXPORT_GCC unsigned char * CALLBACK CDVDgetBuffer();
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EXPORT_GCC long CALLBACK CDVDgetTN(cdvdTN *Buffer);
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EXPORT_GCC long CALLBACK CDVDgetTD(unsigned char track, cdvdTD *Buffer);
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EXPORT_GCC long CALLBACK CDVDgetDiskType();
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EXPORT_GCC long CALLBACK CDVDgetTrayStatus();
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/////////////////////////////////////////////////////////
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const unsigned char version = PS2E_CDVD_VERSION;
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const unsigned char revision = 1;
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const unsigned char build = 2;
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char *libraryName = "P.E.Op.S. CDVD Driver (CDDA mod)";
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/////////////////////////////////////////////////////////
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BOOL bIsOpen=FALSE; // flag: open called once
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BOOL bCDDAPlay=FALSE; // flag: audio is playing
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int iCDROK=0; // !=0: cd is ok
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int iCDType=CDVD_TYPE_UNKNOWN; // CD/DVD
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int iCheckTrayStatus=0; // if 0 : report tray as closed, else try a real check
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void *fdump;
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/////////////////////////////////////////////////////////
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// usual info funcs
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EXPORT_GCC char * CALLBACK PS2EgetLibName()
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{
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return libraryName;
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}
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EXPORT_GCC unsigned long CALLBACK PS2EgetLibType()
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{
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return PS2E_LT_CDVD;
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}
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EXPORT_GCC unsigned long CALLBACK PS2EgetLibVersion2(unsigned long type)
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{
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return version<<16|revision<<8|build;
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}
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/*
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EXPORT_GCC unsigned long CALLBACK PS2EgetCpuPlatform(void)
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{
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return PS2E_X86;
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// return PS2E_X86_64;
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}*/
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s32 msf_to_lba(u8 m, u8 s, u8 f) {
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u32 lsn;
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lsn = f;
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lsn+=(s - 2) * 75;
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lsn+= m * 75 * 60;
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return lsn;
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}
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void lba_to_msf(s32 lba, u8* m, u8* s, u8* f) {
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lba += 150;
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*m = lba / (60*75);
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*s = (lba / 75) % 60;
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*f = lba % 75;
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}
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/////////////////////////////////////////////////////////
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// init: called once at library load
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EXPORT_GCC long CALLBACK CDVDinit()
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{
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szSUBF[0]=0; // just init the filename buffers
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szPPF[0] =0;
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return 0;
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}
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/////////////////////////////////////////////////////////
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// shutdown: called once at final exit
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EXPORT_GCC void CALLBACK CDVDshutdown()
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{
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}
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/////////////////////////////////////////////////////////
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// open: called, when games starts/cd has been changed
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int CheckDiskType(int baseType);
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EXPORT_GCC long CALLBACK CDVDopen()
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{
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int i,audioTracks,dataTracks;
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cdvdTD T;
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if(bIsOpen) // double-open check (if the main emu coder doesn't know what he is doing ;)
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{
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if(iCDROK<=0) return -1;
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else return 0;
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}
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bIsOpen=TRUE; // ok, open func called once
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ReadConfig(); // read user config
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BuildPPFCache(); // build ppf cache
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BuildSUBCache(); // build sub cache
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CreateREADBufs(); // setup generic read buffers
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CreateGenEvent(); // create read event
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iCDROK=OpenGenCD(iCD_AD,iCD_TA,iCD_LU); // generic open, setup read func
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if(iCDROK<=0) {iCDROK=0;return -1;}
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ReadTOC(); // read the toc
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SetGenCDSpeed(0); // try to change the reading speed (if wanted)
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iCDType=CDVD_TYPE_UNKNOWN; // let's look after the disc type
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// (funny stuff taken from Xobro's/Florin's bin plugin)
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if(CDVDreadTrack(16,CDVD_MODE_2048)==0)
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{
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struct cdVolDesc *volDesc;
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volDesc=(struct cdVolDesc *)CDVDgetBuffer();
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if(volDesc)
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{
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//todo: CDVD_TYPE_CDDA
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if(volDesc->rootToc.tocSize==2048)
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iCDType = CDVD_TYPE_DETCTCD;
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else iCDType = CDVD_TYPE_DETCTDVDS;
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}
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}
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fprintf(stderr," * CDVD Disk Open: %d tracks (%d to %d):\n",sTOC.cLastTrack-sTOC.cFirstTrack+1,sTOC.cFirstTrack,sTOC.cLastTrack);
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audioTracks=dataTracks=0;
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for(i=sTOC.cFirstTrack;i<=sTOC.cLastTrack;i++)
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{
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CDVDgetTD(i,&T);
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if(T.type==CDVD_AUDIO_TRACK) {
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audioTracks++;
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fprintf(stderr," * * Track %d: Audio (%d sectors)\n",i,T.lsn);
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}
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else {
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dataTracks++;
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fprintf(stderr," * * Track %d: Data (Mode %d) (%d sectors)\n",i,((T.type==CDVD_MODE1_TRACK)?1:2),T.lsn);
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}
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}
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if((dataTracks==0)&&(audioTracks>0))
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iCDType=CDVD_TYPE_CDDA;
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else if(dataTracks>0)
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iCDType=CheckDiskType(iCDType);
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if((iCDType==CDVD_TYPE_ILLEGAL)&&(audioTracks>0))
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iCDType=CDVD_TYPE_CDDA;
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else if((iCDType==CDVD_TYPE_PS2CD)&&(audioTracks>0))
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iCDType=CDVD_TYPE_PS2CDDA;
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else if((iCDType==CDVD_TYPE_PSCD)&&(audioTracks>0))
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iCDType=CDVD_TYPE_PSCDDA;
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switch(iCDType) {
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case CDVD_TYPE_ILLEGAL: // Illegal Disc
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fprintf(stderr," * Disk Type: Illegal Disk.\n");break;
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case CDVD_TYPE_DVDV: // DVD Video
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fprintf(stderr," * Disk Type: DVD Video.\n");break;
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case CDVD_TYPE_CDDA: // Audio CD
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fprintf(stderr," * Disk Type: CDDA.\n");break;
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case CDVD_TYPE_PS2DVD: // PS2 DVD
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fprintf(stderr," * Disk Type: PS2 DVD.\n");break;
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case CDVD_TYPE_PS2CDDA: // PS2 CD (with audio)
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fprintf(stderr," * Disk Type: PS2 CD+Audio.\n");break;
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case CDVD_TYPE_PS2CD: // PS2 CD
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fprintf(stderr," * Disk Type: PS2 CD.\n");break;
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case CDVD_TYPE_PSCDDA: // PS CD (with audio)
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fprintf(stderr," * Disk Type: PS1 CD+Audio.\n");break;
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case CDVD_TYPE_PSCD: // PS CD
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fprintf(stderr," * Disk Type: PS1 CD.\n");break;
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case CDVD_TYPE_UNKNOWN: // Unknown
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fprintf(stderr," * Disk Type: Unknown.\n");break;
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case CDVD_TYPE_NODISC: // No Disc
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fprintf(stderr," * Disk Type: No Disc.\n");break;
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}
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/* if (iBlockDump)*/ {
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// fdump = isoCreate("block.dump", ISOFLAGS_BLOCKDUMP);
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fdump = NULL;
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if (fdump) {
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cdvdTD buf;
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CDVDgetTD(0, &buf);
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isoSetFormat(fdump, 0, 2352, buf.lsn);
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}
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} /*else {
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fdump = NULL;
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}*/
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return 0; // ok, done
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}
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/////////////////////////////////////////////////////////
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// close: called when emulation stops
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EXPORT_GCC void CALLBACK CDVDclose()
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{
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if(!bIsOpen) return; // no open? no close...
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if (fdump != NULL) {
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isoClose(fdump);
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}
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bIsOpen=FALSE; // no more open
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LockGenCDAccess(); // make sure that no more reading is happening
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if(iCDROK) // cd was ok?
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{
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if(bCDDAPlay) {DoCDDAPlay(0);bCDDAPlay=FALSE;} // -> cdda playing? stop it
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SetGenCDSpeed(1); // -> repair speed
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CloseGenCD(); // -> cd not used anymore
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}
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UnlockGenCDAccess();
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FreeREADBufs(); // free read bufs
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FreeGenEvent(); // free event
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FreePPFCache(); // free ppf cache
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FreeSUBCache(); // free sub cache
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}
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/////////////////////////////////////////////////////////
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// test: ah, well, always fine
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EXPORT_GCC long CALLBACK CDVDtest()
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{
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return 0;
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}
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/////////////////////////////////////////////////////////
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// readSubQ: read subq from disc (only cds have subq data)
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EXPORT_GCC long CALLBACK CDVDreadSubQ(u32 lsn, cdvdSubQ* subq)
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{
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if(!bIsOpen) CDVDopen(); // usual checks
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if(!iCDROK) return -1;
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// fake it
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u8 min, sec, frm;
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subq->ctrl = 4;
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subq->mode = 1;
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subq->trackNum = itob(1);
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subq->trackIndex= itob(1);
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lba_to_msf(lsn, &min, &sec, &frm);
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subq->trackM = itob(min);
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subq->trackS = itob(sec);
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subq->trackF = itob(frm);
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subq->pad = 0;
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lba_to_msf(lsn + (2*75), &min, &sec, &frm);
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subq->discM = itob(min);
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subq->discS = itob(sec);
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subq->discF = itob(frm);
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return 0;
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}
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/////////////////////////////////////////////////////////
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// gettoc: ps2 style TOC
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EXPORT_GCC long CALLBACK CDVDgetTOC(void* toc)
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{
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u32 type;
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u8* tocBuff = (u8*)toc;
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if(!bIsOpen) CDVDopen(); // not open? funny emu...
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if(!iCDROK) return -1; // cd not ok?
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type = CDVDgetDiskType();
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if( type == CDVD_TYPE_DVDV ||
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type == CDVD_TYPE_PS2DVD)
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{
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// get dvd structure format
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// scsi command 0x43
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memset(tocBuff, 0, 2048);
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// fake it
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tocBuff[ 0] = 0x04;
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tocBuff[ 1] = 0x02;
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tocBuff[ 2] = 0xF2;
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tocBuff[ 3] = 0x00;
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tocBuff[ 4] = 0x86;
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tocBuff[ 5] = 0x72;
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tocBuff[16] = 0x00;
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tocBuff[17] = 0x03;
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tocBuff[18] = 0x00;
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tocBuff[19] = 0x00;
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}
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else if(type == CDVD_TYPE_CDDA ||
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type == CDVD_TYPE_PS2CDDA ||
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type == CDVD_TYPE_PS2CD ||
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type == CDVD_TYPE_PSCDDA ||
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type == CDVD_TYPE_PSCD)
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{
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// cd toc
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// (could be replaced by 1 command that reads the full toc)
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u8 min, sec, frm,i;
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s32 err;
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cdvdTN diskInfo;
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cdvdTD trackInfo;
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memset(tocBuff, 0, 1024);
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if (CDVDgetTN(&diskInfo) == -1) { diskInfo.etrack = 0;diskInfo.strack = 1; }
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if (CDVDgetTD(0, &trackInfo) == -1) trackInfo.lsn = 0;
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tocBuff[0] = 0x41;
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tocBuff[1] = 0x00;
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//Number of FirstTrack
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tocBuff[2] = 0xA0;
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tocBuff[7] = itob(diskInfo.strack);
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//Number of LastTrack
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tocBuff[12] = 0xA1;
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tocBuff[17] = itob(diskInfo.etrack);
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//DiskLength
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lba_to_msf(trackInfo.lsn, &min, &sec, &frm);
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tocBuff[22] = 0xA2;
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tocBuff[27] = itob(min);
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tocBuff[28] = itob(sec);
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tocBuff[29] = itob(frm);
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for (i=diskInfo.strack; i<=diskInfo.etrack; i++)
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{
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err = CDVDgetTD(i, &trackInfo);
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lba_to_msf(trackInfo.lsn, &min, &sec, &frm);
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tocBuff[i*10+30] = trackInfo.type;
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tocBuff[i*10+32] = err == -1 ? 0 : itob(i); //number
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tocBuff[i*10+37] = itob(min);
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tocBuff[i*10+38] = itob(sec);
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tocBuff[i*10+39] = itob(frm);
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}
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}
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else
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return -1;
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return 0;
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}
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EXPORT_GCC long CALLBACK CDVDctrlTrayOpen()
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{
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return 0;
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}
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EXPORT_GCC long CALLBACK CDVDctrlTrayClose()
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{
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return 0;
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}
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/////////////////////////////////////////////////////////
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// gettn: first/last track num
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EXPORT_GCC long CALLBACK CDVDgetTN(cdvdTN *Buffer)
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{
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if(!bIsOpen) CDVDopen(); // not open? funny emu...
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if(!iCDROK) // cd not ok?
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{
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Buffer->strack=1;
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Buffer->etrack=1;
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return -1;
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}
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ReadTOC(); // read the TOC
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Buffer->strack=sTOC.cFirstTrack; // get the infos
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Buffer->etrack=sTOC.cLastTrack;
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return 0;
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}
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/////////////////////////////////////////////////////////
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// gettd: track addr
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EXPORT_GCC long CALLBACK CDVDgetTD(unsigned char track, cdvdTD *Buffer)
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{
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unsigned long lu,i;
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unsigned char buffer[2352];
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unsigned char *buf;
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u8 t1;
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if(!bIsOpen) CDVDopen(); // not open? funny emu...
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if(!iCDROK) return -1; // cd not ok? bye
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ReadTOC(); // read toc
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/*
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// PSEmu style:
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if(track==0) // 0 = last track
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{
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lu=reOrder(sTOC.tracks[sTOC.cLastTrack].lAddr);
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addr2time(lu,buffer);
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}
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else // others: track n
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{
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lu=reOrder(sTOC.tracks[track-1].lAddr);
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addr2time(lu,buffer);
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}
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Buffer->minute = buffer[1];
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Buffer->second = buffer[2];
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Buffer->frame = buffer[3];
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Buffer->type = iCDType;
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#ifdef DBGOUT
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auxprintf("Read Toc %d: %u\n",track,lu);
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#endif
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*/
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lu=0;
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if(track==0)
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lu=reOrder(sTOC.tracks[sTOC.cLastTrack].lAddr);
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else
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lu=reOrder(sTOC.tracks[track].lAddr);
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//addr2time(lu,buffer);
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Buffer->lsn=lu;
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if(track==0)
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Buffer->type = iCDType;
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else
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{
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lu=0;
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for(i=sTOC.cFirstTrack;i<track;i++)
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lu+=sTOC.tracks[i].lAddr;
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CDVDreadTrack(lu+16,CDVD_MODE_2352);
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buf=CDVDgetBuffer();
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if(buf!=NULL) memcpy(buffer,buf,2352);
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else memset(buffer,0,2352);
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if( (buffer[16]==01)
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&&(buffer[17]=='C')
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&&(buffer[18]=='D')
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)
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t1 = CDVD_MODE1_TRACK;
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else if( (buffer[24]==01)
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&&(buffer[25]=='C')
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&&(buffer[26]=='D')
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)
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t1 = CDVD_MODE2_TRACK;
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else t1 = CDVD_AUDIO_TRACK;
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Buffer->type=t1;
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}
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return 0;
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}
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/////////////////////////////////////////////////////////
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// readtrack: start reading at given address
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EXPORT_GCC long CALLBACK CDVDreadTrack(unsigned long lsn, int mode)
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{
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if(!bIsOpen) CDVDopen(); // usual checks
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if(!iCDROK) return -1;
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if(bCDDAPlay) bCDDAPlay=FALSE;
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#ifdef DBGOUT
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auxprintf("Read Track %u: %d\n",lsn,mode);
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#endif
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lLastAccessedAddr=lsn; // store read track values (for getbuffer)
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iLastAccessedMode=mode;
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if(!pReadTrackFunc(lLastAccessedAddr)) // start reading
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return -1;
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return 0;
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}
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/////////////////////////////////////////////////////////
|
|
// getbuffer: will be called after readtrack, to get ptr
|
|
// to data
|
|
|
|
// small helper buffer to get bigger block sizes
|
|
unsigned char cDataAndSub[2368];
|
|
|
|
EXPORT_GCC unsigned char * CALLBACK CDVDgetBuffer()
|
|
{
|
|
unsigned char * pbuffer;
|
|
|
|
if(!bIsOpen) CDVDopen();
|
|
|
|
if(pGetPtrFunc) pGetPtrFunc(); // get ptr on thread modes
|
|
|
|
pbuffer=pCurrReadBuf; // init buffer pointer
|
|
|
|
if(iLastAccessedMode!=iUsedMode)
|
|
{
|
|
switch(iLastAccessedMode) // what does the emu want?
|
|
{//------------------------------------------------//
|
|
case CDVD_MODE_2048:
|
|
{
|
|
if(iUsedBlockSize==2352) pbuffer+=24;
|
|
}break;
|
|
//------------------------------------------------//
|
|
case CDVD_MODE_2352:
|
|
{
|
|
if(iUsedBlockSize==2048)
|
|
{
|
|
memset(cDataAndSub,0,2368);
|
|
memcpy(cDataAndSub+24,pbuffer,2048);
|
|
pbuffer=cDataAndSub;
|
|
}
|
|
}break;
|
|
//------------------------------------------------//
|
|
case CDVD_MODE_2340:
|
|
{
|
|
if(iUsedBlockSize==2048)
|
|
{
|
|
memset(cDataAndSub,0,2368);
|
|
memcpy(cDataAndSub+12,pbuffer,2048);
|
|
pbuffer=cDataAndSub;
|
|
}
|
|
else pbuffer+=12;
|
|
}break;
|
|
//------------------------------------------------//
|
|
case CDVD_MODE_2328:
|
|
{
|
|
if(iUsedBlockSize==2048)
|
|
{
|
|
memset(cDataAndSub,0,2368);
|
|
memcpy(cDataAndSub+0,pbuffer,2048);
|
|
pbuffer=cDataAndSub;
|
|
}
|
|
else pbuffer+=24;
|
|
}break;
|
|
//------------------------------------------------//
|
|
case CDVD_MODE_2368:
|
|
{
|
|
if(iUsedBlockSize==2048)
|
|
{
|
|
memset(cDataAndSub,0,2368);
|
|
memcpy(cDataAndSub+24,pbuffer,2048);
|
|
pbuffer=cDataAndSub;
|
|
|
|
/*
|
|
// NO SUBCHANNEL SUPPORT RIGHT NOW!!!
|
|
{
|
|
if(subHead) // some sub file?
|
|
CheckSUBCache(lLastAccessedAddr); // -> get cached subs
|
|
else
|
|
if(iUseSubReading!=1 && pCurrSubBuf) // no direct cd sub read?
|
|
FakeSubData(lLastAccessedAddr); // -> fake the data
|
|
memcpy(cDataAndSub,pCurrReadBuf,2352);
|
|
if(pCurrSubBuf)
|
|
memcpy(cDataAndSub+2352,pCurrSubBuf+12,16);
|
|
pbuffer=cDataAndSub;
|
|
}
|
|
*/
|
|
|
|
}
|
|
}break;
|
|
//------------------------------------------------//
|
|
}
|
|
}
|
|
|
|
#ifdef DBGOUT
|
|
auxprintf("get buf %d\n",iLastAccessedMode);
|
|
|
|
/*
|
|
{
|
|
int k;
|
|
for(k=0;k<2352;k++)
|
|
auxprintf("%02x ",*(pbuffer+k));
|
|
auxprintf("\n\n");
|
|
}
|
|
*/
|
|
#endif
|
|
|
|
return pbuffer;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
|
|
EXPORT_GCC long CALLBACK CDVDgetDiskType()
|
|
{
|
|
return iCDType;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
// CDVDgetTrayStatus
|
|
|
|
EXPORT_GCC long CALLBACK CDVDgetTrayStatus()
|
|
{
|
|
static time_t to=0;
|
|
static long lLastTrayState=CDVD_TRAY_CLOSE;
|
|
|
|
if(to==time(NULL)) return lLastTrayState; // we only check once per second
|
|
to = time(NULL);
|
|
|
|
lLastTrayState=CDVD_TRAY_CLOSE; // init state with "closed"
|
|
|
|
if(iCheckTrayStatus) // user really want a tray check
|
|
{
|
|
int iStatus;
|
|
|
|
LockGenCDAccess(); // make sure that no more reading is happening
|
|
iStatus=GetSCSIStatus(iCD_AD,iCD_TA,iCD_LU); // get device status
|
|
UnlockGenCDAccess();
|
|
|
|
if(iStatus==SS_ERR)
|
|
lLastTrayState=CDVD_TRAY_OPEN;
|
|
}
|
|
|
|
#ifdef DBGOUT
|
|
auxprintf("check %d -> %d\n",to,lLastTrayState);
|
|
#endif
|
|
|
|
|
|
return lLastTrayState;
|
|
}
|
|
|
|
|
|
/////////////////////////////////////////////////////////
|
|
// configure: shows config window
|
|
|
|
EXPORT_GCC void CALLBACK CDVDconfigure()
|
|
{
|
|
if(iCDROK) // mmm... someone has already called Open? bad
|
|
{MessageBeep((UINT)-1);return;}
|
|
|
|
CreateGenEvent(); // we need an event handle
|
|
|
|
DialogBox(hInst,MAKEINTRESOURCE(IDD_CONFIG), // call dialog
|
|
GetActiveWindow(),(DLGPROC)CDRDlgProc);
|
|
|
|
FreeGenEvent(); // free event handle
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
// about: shows about window
|
|
|
|
EXPORT_GCC void CALLBACK CDVDabout()
|
|
{
|
|
DialogBox(hInst,MAKEINTRESOURCE(IDD_ABOUT),
|
|
GetActiveWindow(),(DLGPROC)AboutDlgProc);
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
/////////////////////////////////////////////////////////
|
|
/////////////////////////////////////////////////////////
|
|
|
|
/*
|
|
// CURRENTLY UNUSED OLD STUFF FROM PSX CD PLUGIN:
|
|
|
|
/////////////////////////////////////////////////////////
|
|
// audioplay: PLAYSECTOR is NOT BCD coded !!!
|
|
|
|
EXPORT_GCC long CALLBACK CDRplay(unsigned char * sector)
|
|
{
|
|
if(!bIsOpen) CDVDopen();
|
|
if(!iCDROK) return PSE_ERR_FATAL;
|
|
|
|
if(!DoCDDAPlay(time2addr(sector))) // start playing
|
|
return PSE_CDR_ERR_NOREAD;
|
|
|
|
bCDDAPlay=TRUE; // raise flag: we are playing
|
|
|
|
return PSE_CDR_ERR_SUCCESS;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
// audiostop: stops cdda playing
|
|
|
|
EXPORT_GCC long CALLBACK CDRstop(void)
|
|
{
|
|
if(!bCDDAPlay) return PSE_ERR_FATAL;
|
|
|
|
DoCDDAPlay(0); // stop cdda
|
|
|
|
bCDDAPlay=FALSE; // reset flag: no more playing
|
|
|
|
return PSE_CDR_ERR_SUCCESS;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
// getdriveletter
|
|
|
|
EXPORT_GCC char CALLBACK CDRgetDriveLetter(void)
|
|
{
|
|
if(!iCDROK) return 0; // not open? no way to get the letter
|
|
|
|
if(iInterfaceMode==2 || iInterfaceMode==3) // w2k/xp: easy
|
|
{
|
|
return MapIOCTLDriveLetter(iCD_AD,iCD_TA,iCD_LU);
|
|
}
|
|
else // but with aspi???
|
|
{ // -> no idea yet (maybe registry read...pfff)
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
// getstatus: pcsx func... poorly supported here
|
|
// problem is: func will be called often, which
|
|
// would block all of my cdr reading if I would use
|
|
// lotsa scsi commands
|
|
|
|
struct CdrStat
|
|
{
|
|
unsigned long Type;
|
|
unsigned long Status;
|
|
unsigned char Time[3]; // current playing time
|
|
};
|
|
|
|
struct CdrStat ostat;
|
|
|
|
// reads cdr status
|
|
// type:
|
|
// 0x00 - unknown
|
|
// 0x01 - data
|
|
// 0x02 - audio
|
|
// 0xff - no cdrom
|
|
// status:
|
|
// 0x00 - unknown
|
|
// 0x02 - error
|
|
// 0x08 - seek error
|
|
// 0x10 - shell open
|
|
// 0x20 - reading
|
|
// 0x40 - seeking
|
|
// 0x80 - playing
|
|
// time:
|
|
// byte 0 - minute
|
|
// byte 1 - second
|
|
// byte 2 - frame
|
|
|
|
|
|
EXPORT_GCC long CALLBACK CDRgetStatus(struct CdrStat *stat)
|
|
{
|
|
int iStatus;
|
|
static time_t to;
|
|
|
|
if(!bCDDAPlay) // if not playing update stat only once in a second
|
|
{
|
|
if(to<time(NULL))
|
|
{
|
|
to = time(NULL);
|
|
}
|
|
else
|
|
{
|
|
memcpy(stat, &ostat, sizeof(struct CdrStat));
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
memset(stat, 0, sizeof(struct CdrStat));
|
|
|
|
if(!iCDROK) return -1; // not opened? bye
|
|
|
|
if(bCDDAPlay) // cdda is playing?
|
|
{
|
|
unsigned char * pB=GetCDDAPlayPosition(); // -> get pos
|
|
stat->Type = 0x02; // -> audio
|
|
if(pB)
|
|
{
|
|
stat->Status|=0x80; // --> playing flag
|
|
stat->Time[0]=pB[18]; // --> and curr play time
|
|
stat->Time[1]=pB[19];
|
|
stat->Time[2]=pB[20];
|
|
}
|
|
}
|
|
else // cdda not playing?
|
|
{
|
|
stat->Type = 0x01; // -> data
|
|
}
|
|
|
|
LockGenCDAccess(); // make sure that no more reading is happening
|
|
iStatus=GetSCSIStatus(iCD_AD,iCD_TA,iCD_LU); // get device status
|
|
UnlockGenCDAccess();
|
|
|
|
if(iStatus==SS_ERR)
|
|
{ // no cdrom?
|
|
stat->Type = 0xff;
|
|
stat->Status|= 0x10;
|
|
}
|
|
|
|
memcpy(&ostat, stat, sizeof(struct CdrStat));
|
|
|
|
return 0;
|
|
}
|
|
|
|
/////////////////////////////////////////////////////////
|
|
*/
|