| 1 |
/* PCSX2 - PS2 Emulator for PCs |
| 2 |
* Copyright (C) 2002-2010 PCSX2 Dev Team |
| 3 |
* |
| 4 |
* PCSX2 is free software: you can redistribute it and/or modify it under the terms |
| 5 |
* of the GNU Lesser General Public License as published by the Free Software Found- |
| 6 |
* ation, either version 3 of the License, or (at your option) any later version. |
| 7 |
* |
| 8 |
* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; |
| 9 |
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR |
| 10 |
* PURPOSE. See the GNU General Public License for more details. |
| 11 |
* |
| 12 |
* You should have received a copy of the GNU General Public License along with PCSX2. |
| 13 |
* If not, see <http://www.gnu.org/licenses/>. |
| 14 |
*/ |
| 15 |
|
| 16 |
|
| 17 |
/* |
| 18 |
* Original code from libcdvd by Hiryu & Sjeep (C) 2002 |
| 19 |
* Modified by Florin for PCSX2 emu |
| 20 |
* Fixed CdRead by linuzappz |
| 21 |
*/ |
| 22 |
|
| 23 |
#include "PrecompiledHeader.h" |
| 24 |
|
| 25 |
#include <stdio.h> |
| 26 |
#include <stdlib.h> |
| 27 |
#include <fcntl.h> |
| 28 |
|
| 29 |
#include "CDVDisoReader.h" |
| 30 |
|
| 31 |
static u8 *pbuffer; |
| 32 |
static u8 cdbuffer[2352] = {0}; |
| 33 |
static isoFile *iso = NULL; |
| 34 |
|
| 35 |
static int psize, cdtype; |
| 36 |
|
| 37 |
static s32 layer1start = -1; |
| 38 |
|
| 39 |
void CALLBACK ISOclose() |
| 40 |
{ |
| 41 |
isoClose(iso); |
| 42 |
iso = NULL; |
| 43 |
} |
| 44 |
|
| 45 |
s32 CALLBACK ISOopen(const char* pTitle) |
| 46 |
{ |
| 47 |
ISOclose(); // just in case |
| 48 |
|
| 49 |
if( (pTitle == NULL) || (pTitle[0] == 0) ) |
| 50 |
{ |
| 51 |
Console.Error( "CDVDiso Error: No filename specified." ); |
| 52 |
return -1; |
| 53 |
} |
| 54 |
|
| 55 |
iso = isoOpen(pTitle); |
| 56 |
if (iso == NULL) |
| 57 |
{ |
| 58 |
Console.Error( "CDVDiso Error: Failed loading %s", pTitle ); |
| 59 |
return -1; |
| 60 |
} |
| 61 |
|
| 62 |
switch (iso->type) |
| 63 |
{ |
| 64 |
case ISOTYPE_DVD: |
| 65 |
cdtype = CDVD_TYPE_PS2DVD; |
| 66 |
break; |
| 67 |
case ISOTYPE_AUDIO: |
| 68 |
cdtype = CDVD_TYPE_CDDA; |
| 69 |
break; |
| 70 |
default: |
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cdtype = CDVD_TYPE_PS2CD; |
| 72 |
break; |
| 73 |
} |
| 74 |
|
| 75 |
layer1start = -1; |
| 76 |
|
| 77 |
return 0; |
| 78 |
} |
| 79 |
|
| 80 |
s32 CALLBACK ISOreadSubQ(u32 lsn, cdvdSubQ* subq) |
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{ |
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// fake it |
| 83 |
u8 min, sec, frm; |
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subq->ctrl = 4; |
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subq->mode = 1; |
| 86 |
subq->trackNum = itob(1); |
| 87 |
subq->trackIndex = itob(1); |
| 88 |
|
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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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|
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subq->pad = 0; |
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|
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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); |
| 100 |
|
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return 0; |
| 102 |
} |
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|
| 104 |
s32 CALLBACK ISOgetTN(cdvdTN *Buffer) |
| 105 |
{ |
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Buffer->strack = 1; |
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Buffer->etrack = 1; |
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|
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return 0; |
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} |
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|
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s32 CALLBACK ISOgetTD(u8 Track, cdvdTD *Buffer) |
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{ |
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if (Track == 0) |
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{ |
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Buffer->lsn = iso->blocks; |
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} |
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else |
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{ |
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Buffer->type = CDVD_MODE1_TRACK; |
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Buffer->lsn = 0; |
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} |
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|
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return 0; |
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} |
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|
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#include "gui/App.h" |
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#include "Utilities/HashMap.h" |
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|
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static bool testForPartitionInfo( const u8 (&tempbuffer)[CD_FRAMESIZE_RAW] ) |
| 131 |
{ |
| 132 |
const int off = iso->blockofs; |
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|
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// test for: CD001 |
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return ( |
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(tempbuffer[off+1] == 0x43) && |
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(tempbuffer[off+2] == 0x44) && |
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(tempbuffer[off+3] == 0x30) && |
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(tempbuffer[off+4] == 0x30) && |
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(tempbuffer[off+5] == 0x31) |
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); |
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} |
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|
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static bool FindLayer1Start() |
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{ |
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if( (layer1start != -1) || (iso->blocks < 0x230540) ) return true; |
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|
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Console.WriteLn("CDVDiso: searching for layer1..."); |
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|
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int blockresult = -1; |
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|
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// Check the ini file cache first: |
| 153 |
// Cache is stored in LayerBreakCache.ini, and is associated by hex-encoded hash key of the |
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// complete filename/path of the iso file. :) |
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|
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wxString layerCacheFile( Path::Combine(GetSettingsFolder().ToString(), L"LayerBreakCache.ini") ); |
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wxFileConfig layerCacheIni( wxEmptyString, wxEmptyString, layerCacheFile, wxEmptyString, wxCONFIG_USE_RELATIVE_PATH ); |
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|
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wxString cacheKey; |
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cacheKey.Printf( L"%X", HashTools::Hash( iso->filename, strlen( iso->filename ) ) ); |
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|
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blockresult = layerCacheIni.Read( cacheKey, -1 ); |
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if( blockresult != -1 ) |
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{ |
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u8 tempbuffer[CD_FRAMESIZE_RAW]; |
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isoReadBlock(iso, tempbuffer, blockresult); |
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|
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if( testForPartitionInfo( tempbuffer ) ) |
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{ |
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Console.WriteLn( "CDVDiso: loaded second layer from settings cache, sector=0x%8.8x", blockresult ); |
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layer1start = blockresult; |
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} |
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else |
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{ |
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Console.Warning( "CDVDiso: second layer info in the settings cache appears to be obsolete or invalid." ); |
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} |
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} |
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else |
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{ |
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DevCon.WriteLn( "CDVDiso: no cached info for second layer found." ); |
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} |
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|
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if( layer1start == -1 ) |
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{ |
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|
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// Layer sizes are arbitrary, and either layer could be the smaller (GoW and Rogue Galaxy |
| 187 |
// both have Layer1 larger than Layer0 for example), so we have to brute-force the search |
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// from some arbitrary start position. |
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// |
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// Method: Inside->out. We start at the middle of the image and work our way out toward |
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// both the beginning and end of the image at the same time. Most images have the layer |
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// break quite close to the middle of the image, so this should be pretty fast in most cases. |
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|
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// [TODO] Layer searching can be slow, especially for compressed disc images, so it would |
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// be quite courteous to pop up a status dialog bar that lets the user know that it's |
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// thinking. Since we're not on the GUI thread, we'll need to establish some messages |
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// to create the window and pass progress increments back to it. |
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|
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|
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uint midsector = (iso->blocks / 2) & ~0xf; |
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uint deviation = 0; |
| 202 |
|
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while( (layer1start == -1) && (deviation < midsector-16) ) |
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{ |
| 205 |
u8 tempbuffer[CD_FRAMESIZE_RAW]; |
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isoReadBlock(iso, tempbuffer, midsector-deviation); |
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|
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if(testForPartitionInfo( tempbuffer )) |
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layer1start = midsector-deviation; |
| 210 |
else |
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{ |
| 212 |
isoReadBlock(iso, tempbuffer, midsector+deviation); |
| 213 |
if( testForPartitionInfo( tempbuffer ) ) |
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layer1start = midsector+deviation; |
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} |
| 216 |
|
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if( layer1start != -1 ) |
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{ |
| 219 |
if( !pxAssertDev( tempbuffer[iso->blockofs] == 0x01, "Layer1-Detect: CD001 tag found, but the partition type is invalid." ) ) |
| 220 |
{ |
| 221 |
Console.Error( "CDVDiso: Invalid partition type on layer 1!? (type=0x%x)", tempbuffer[iso->blockofs] ); |
| 222 |
} |
| 223 |
} |
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deviation += 16; |
| 225 |
} |
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|
| 227 |
if( layer1start == -1 ) |
| 228 |
{ |
| 229 |
Console.Warning("CDVDiso: Couldn't find second layer... ignoring"); |
| 230 |
return false; |
| 231 |
} |
| 232 |
else |
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{ |
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Console.WriteLn("CDVDiso: second layer found at sector 0x%8.8x", layer1start); |
| 235 |
|
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// Save layer information to configuration: |
| 237 |
|
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layerCacheIni.Write( cacheKey, layer1start ); |
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} |
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} |
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return true; |
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} |
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|
| 244 |
// Should return 0 if no error occurred, or -1 if layer detection FAILED. |
| 245 |
s32 CALLBACK ISOgetDualInfo(s32* dualType, u32* _layer1start) |
| 246 |
{ |
| 247 |
if( !FindLayer1Start() ) return -1; |
| 248 |
|
| 249 |
if(layer1start<0) |
| 250 |
{ |
| 251 |
*dualType = 0; |
| 252 |
*_layer1start = iso->blocks; |
| 253 |
} |
| 254 |
else |
| 255 |
{ |
| 256 |
*dualType = 1; |
| 257 |
*_layer1start = layer1start; |
| 258 |
} |
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return 0; |
| 260 |
} |
| 261 |
|
| 262 |
s32 CALLBACK ISOgetDiskType() |
| 263 |
{ |
| 264 |
return cdtype; |
| 265 |
} |
| 266 |
|
| 267 |
s32 CALLBACK ISOgetTOC(void* toc) |
| 268 |
{ |
| 269 |
u8 type = ISOgetDiskType(); |
| 270 |
u8* tocBuff = (u8*)toc; |
| 271 |
|
| 272 |
//CDVD_LOG("CDVDgetTOC\n"); |
| 273 |
|
| 274 |
if (type == CDVD_TYPE_DVDV || type == CDVD_TYPE_PS2DVD) |
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{ |
| 276 |
// get dvd structure format |
| 277 |
// scsi command 0x43 |
| 278 |
memset(tocBuff, 0, 2048); |
| 279 |
|
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FindLayer1Start(); |
| 281 |
|
| 282 |
if (layer1start < 0) |
| 283 |
{ |
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// fake it |
| 285 |
tocBuff[ 0] = 0x04; |
| 286 |
tocBuff[ 1] = 0x02; |
| 287 |
tocBuff[ 2] = 0xF2; |
| 288 |
tocBuff[ 3] = 0x00; |
| 289 |
tocBuff[ 4] = 0x86; |
| 290 |
tocBuff[ 5] = 0x72; |
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|
| 292 |
tocBuff[16] = 0x00; |
| 293 |
tocBuff[17] = 0x03; |
| 294 |
tocBuff[18] = 0x00; |
| 295 |
tocBuff[19] = 0x00; |
| 296 |
return 0; |
| 297 |
} |
| 298 |
else |
| 299 |
{ |
| 300 |
// dual sided |
| 301 |
tocBuff[ 0] = 0x24; |
| 302 |
tocBuff[ 1] = 0x02; |
| 303 |
tocBuff[ 2] = 0xF2; |
| 304 |
tocBuff[ 3] = 0x00; |
| 305 |
tocBuff[ 4] = 0x41; |
| 306 |
tocBuff[ 5] = 0x95; |
| 307 |
|
| 308 |
tocBuff[14] = 0x60; // dual sided, ptp |
| 309 |
|
| 310 |
tocBuff[16] = 0x00; |
| 311 |
tocBuff[17] = 0x03; |
| 312 |
tocBuff[18] = 0x00; |
| 313 |
tocBuff[19] = 0x00; |
| 314 |
|
| 315 |
s32 l1s = layer1start + 0x30000 - 1; |
| 316 |
tocBuff[20] = (l1s >> 24); |
| 317 |
tocBuff[21] = (l1s >> 16) & 0xff; |
| 318 |
tocBuff[22] = (l1s >> 8) & 0xff; |
| 319 |
tocBuff[23] = (l1s >> 0) & 0xff; |
| 320 |
} |
| 321 |
} |
| 322 |
else if ((type == CDVD_TYPE_CDDA) || (type == CDVD_TYPE_PS2CDDA) || |
| 323 |
(type == CDVD_TYPE_PS2CD) || (type == CDVD_TYPE_PSCDDA) || (type == CDVD_TYPE_PSCD)) |
| 324 |
{ |
| 325 |
// cd toc |
| 326 |
// (could be replaced by 1 command that reads the full toc) |
| 327 |
u8 min, sec, frm; |
| 328 |
s32 i, err; |
| 329 |
cdvdTN diskInfo; |
| 330 |
cdvdTD trackInfo; |
| 331 |
memset(tocBuff, 0, 1024); |
| 332 |
if (ISOgetTN(&diskInfo) == -1) |
| 333 |
{ |
| 334 |
diskInfo.etrack = 0; |
| 335 |
diskInfo.strack = 1; |
| 336 |
} |
| 337 |
if (ISOgetTD(0, &trackInfo) == -1) trackInfo.lsn = 0; |
| 338 |
|
| 339 |
tocBuff[0] = 0x41; |
| 340 |
tocBuff[1] = 0x00; |
| 341 |
|
| 342 |
//Number of FirstTrack |
| 343 |
tocBuff[2] = 0xA0; |
| 344 |
tocBuff[7] = itob(diskInfo.strack); |
| 345 |
|
| 346 |
//Number of LastTrack |
| 347 |
tocBuff[12] = 0xA1; |
| 348 |
tocBuff[17] = itob(diskInfo.etrack); |
| 349 |
|
| 350 |
//DiskLength |
| 351 |
lba_to_msf(trackInfo.lsn, &min, &sec, &frm); |
| 352 |
tocBuff[22] = 0xA2; |
| 353 |
tocBuff[27] = itob(min); |
| 354 |
tocBuff[28] = itob(sec); |
| 355 |
|
| 356 |
for (i = diskInfo.strack; i <= diskInfo.etrack; i++) |
| 357 |
{ |
| 358 |
err = ISOgetTD(i, &trackInfo); |
| 359 |
lba_to_msf(trackInfo.lsn, &min, &sec, &frm); |
| 360 |
tocBuff[i*10+30] = trackInfo.type; |
| 361 |
tocBuff[i*10+32] = err == -1 ? 0 : itob(i); //number |
| 362 |
tocBuff[i*10+37] = itob(min); |
| 363 |
tocBuff[i*10+38] = itob(sec); |
| 364 |
tocBuff[i*10+39] = itob(frm); |
| 365 |
} |
| 366 |
} |
| 367 |
else |
| 368 |
return -1; |
| 369 |
|
| 370 |
return 0; |
| 371 |
} |
| 372 |
|
| 373 |
s32 CALLBACK ISOreadSector(u8* tempbuffer, u32 lsn, int mode) |
| 374 |
{ |
| 375 |
int _lsn = lsn; |
| 376 |
|
| 377 |
if (_lsn < 0) lsn = iso->blocks + _lsn; |
| 378 |
if (lsn > iso->blocks) return -1; |
| 379 |
|
| 380 |
if(mode == CDVD_MODE_2352) |
| 381 |
{ |
| 382 |
isoReadBlock(iso, tempbuffer, lsn); |
| 383 |
return 0; |
| 384 |
} |
| 385 |
|
| 386 |
isoReadBlock(iso, cdbuffer, lsn); |
| 387 |
|
| 388 |
pbuffer = cdbuffer; |
| 389 |
|
| 390 |
switch (mode) |
| 391 |
{ |
| 392 |
case CDVD_MODE_2352: |
| 393 |
psize = 2352; |
| 394 |
break; |
| 395 |
case CDVD_MODE_2340: |
| 396 |
pbuffer += 12; |
| 397 |
psize = 2340; |
| 398 |
break; |
| 399 |
case CDVD_MODE_2328: |
| 400 |
pbuffer += 24; |
| 401 |
psize = 2328; |
| 402 |
break; |
| 403 |
case CDVD_MODE_2048: |
| 404 |
pbuffer += 24; |
| 405 |
psize = 2048; |
| 406 |
break; |
| 407 |
} |
| 408 |
|
| 409 |
// version 3 blockdumps have no pbuffer header, so lets reset back to the |
| 410 |
// original pointer. :) |
| 411 |
if( iso->flags & ISOFLAGS_BLOCKDUMP_V3 ) |
| 412 |
pbuffer = cdbuffer; |
| 413 |
|
| 414 |
memcpy_fast(tempbuffer,pbuffer,psize); |
| 415 |
|
| 416 |
return 0; |
| 417 |
} |
| 418 |
|
| 419 |
s32 CALLBACK ISOreadTrack(u32 lsn, int mode) |
| 420 |
{ |
| 421 |
int _lsn = lsn; |
| 422 |
|
| 423 |
if (_lsn < 0) lsn = iso->blocks + _lsn; |
| 424 |
if (lsn > iso->blocks) return -1; |
| 425 |
|
| 426 |
isoReadBlock(iso, cdbuffer, lsn); |
| 427 |
pbuffer = cdbuffer; |
| 428 |
|
| 429 |
switch (mode) |
| 430 |
{ |
| 431 |
case CDVD_MODE_2352: |
| 432 |
psize = 2352; |
| 433 |
break; |
| 434 |
case CDVD_MODE_2340: |
| 435 |
pbuffer += 12; |
| 436 |
psize = 2340; |
| 437 |
break; |
| 438 |
case CDVD_MODE_2328: |
| 439 |
pbuffer += 24; |
| 440 |
psize = 2328; |
| 441 |
break; |
| 442 |
case CDVD_MODE_2048: |
| 443 |
pbuffer += 24; |
| 444 |
psize = 2048; |
| 445 |
break; |
| 446 |
} |
| 447 |
|
| 448 |
// version 3 blockdumps have no pbuffer header, so lets reset back to the |
| 449 |
// original pointer. :) |
| 450 |
if( iso->flags & ISOFLAGS_BLOCKDUMP_V3 ) |
| 451 |
pbuffer = cdbuffer; |
| 452 |
|
| 453 |
return 0; |
| 454 |
} |
| 455 |
|
| 456 |
s32 CALLBACK ISOgetBuffer2(u8* buffer) |
| 457 |
{ |
| 458 |
memcpy_fast(buffer,pbuffer,psize); |
| 459 |
return 0; |
| 460 |
} |
| 461 |
|
| 462 |
u8* CALLBACK ISOgetBuffer() |
| 463 |
{ |
| 464 |
return pbuffer; |
| 465 |
} |
| 466 |
|
| 467 |
s32 CALLBACK ISOgetTrayStatus() |
| 468 |
{ |
| 469 |
return CDVD_TRAY_CLOSE; |
| 470 |
} |
| 471 |
|
| 472 |
s32 CALLBACK ISOctrlTrayOpen() |
| 473 |
{ |
| 474 |
return 0; |
| 475 |
} |
| 476 |
s32 CALLBACK ISOctrlTrayClose() |
| 477 |
{ |
| 478 |
return 0; |
| 479 |
} |
| 480 |
|
| 481 |
s32 CALLBACK ISOdummyS32() |
| 482 |
{ |
| 483 |
return 0; |
| 484 |
} |
| 485 |
|
| 486 |
void CALLBACK ISOnewDiskCB(void(* /* callback */)()) |
| 487 |
{ |
| 488 |
} |
| 489 |
|
| 490 |
CDVD_API CDVDapi_Iso = |
| 491 |
{ |
| 492 |
ISOclose, |
| 493 |
|
| 494 |
ISOopen, |
| 495 |
ISOreadTrack, |
| 496 |
ISOgetBuffer, // emu shouldn't use this one. |
| 497 |
ISOreadSubQ, |
| 498 |
ISOgetTN, |
| 499 |
ISOgetTD, |
| 500 |
ISOgetTOC, |
| 501 |
ISOgetDiskType, |
| 502 |
ISOdummyS32, // trayStatus |
| 503 |
ISOdummyS32, // trayOpen |
| 504 |
ISOdummyS32, // trayClose |
| 505 |
|
| 506 |
ISOnewDiskCB, |
| 507 |
|
| 508 |
ISOreadSector, |
| 509 |
ISOgetBuffer2, |
| 510 |
ISOgetDualInfo, |
| 511 |
}; |
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