ShuriZma
/
pcsx2
mirror of https://github.com/PCSX2/pcsx2.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

* Cdvd Layer break cache uses hashed strings instead of the literal filename. 

* Minor fix to cdvd layer break console log.

(and yes it's confirmed, this fixes GoW and Rogue Galaxy layer break freezes!)

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@2265 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
Jake.Stine 2009-11-27 22:39:39 +00:00
parent f1f5b985ca
commit fedbb42a96
1 changed files with 28 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

40
pcsx2/CDVD/CDVDisoReader.cpp
View File

@ -125,22 +125,28 @@ s32 CALLBACK ISOgetTD(u8 Track, cdvdTD *Buffer)
}
#include "gui/App.h"
#include "Utilities/HashMap.h"
static void FindLayer1Start()
static bool FindLayer1Start()
{
if( (layer1start != -1) || (iso->blocks < 0x230540) ) return;
if( (layer1start != -1) || (iso->blocks < 0x230540) ) return true;
Console.WriteLn("CDVDiso: searching for layer1...");
const int off = iso->blockofs;
int blockresult = -1;
wxString layerCacheFile( Path::Combine(GetSettingsFolder().ToString(), L"LayerBreakCache.ini") );
// Check the ini file cache first:
// Cache is stored in LayerBreakCache.ini, and is associated by hex-encoded hash key of the
// complete filename/path of the iso file. :)
wxString layerCacheFile( Path::Combine(GetSettingsFolder().ToString(), L"LayerBreakCache.ini") );
wxFileConfig layerCacheIni( wxEmptyString, wxEmptyString, layerCacheFile, wxEmptyString, wxCONFIG_USE_RELATIVE_PATH );
// Check the ini file cache first:
blockresult = layerCacheIni.Read( fromUTF8(iso->filename), -1 );
wxString cacheKey;
cacheKey.Printf( L"%X", HashTools::Hash( iso->filename, strlen( iso->filename ) ) );
blockresult = layerCacheIni.Read( cacheKey, -1 );
if( blockresult != -1 )
{
u8 tempbuffer[CD_FRAMESIZE_RAW];
@ -167,16 +173,17 @@ static void FindLayer1Start()
if( layer1start == -1 )
{
// Manual search required. Implementation uses a two-pass search algo. The first pass
// looks on 16-sector boundaries of a limited range around the center of the image, and
// if that fails a second search of all blocks is performed. Layer sizes are arbitrary,
// Manual search required. Implementation (should) uses a two-pass search algo. The first
// pass looks on 16-sector boundaries of a limited range around the center of the image, and
// if that fails a second search of all aligned blocks is performed. Layer sizes are arbitrary,
// and either layer could be the smaller (GoW and Rogue Galaxy both have Layer1 larger
// than Layer0 for example), so we have to brute-force the search from some arbitrary
// start position (I choose 25%)!
//
// [TODO] Currently only the first pass is performed.
// [TODO]
// Layer searching can be slow, especially for compressed disc images, so it would be
// quite courteous to pop up a status dialog bar that lets the user know that it's
// [TODO] Layer searching can be slow, especially for compressed disc images, so it would
// be quite courteous to pop up a status dialog bar that lets the user know that it's
// thinking. Since we're not on the GUI thread, we'll need to establish some messages
// to create the window and pass progress increments back to it.
@ -205,21 +212,26 @@ static void FindLayer1Start()
}
if( layer1start == -1 )
{
Console.Warning("CDVDiso: Couldn't find second layer... ignoring");
return false;
}
else
{
Console.WriteLn("CDVDiso: second layer found at sector 0x%8.8x", layer1start);
// Save layer information to configuration:
layerCacheIni.Write( fromUTF8(iso->filename), layer1start );
layerCacheIni.Write( cacheKey, layer1start );
}
}
return true;
}
// Should return 0 if no error occurred, or -1 if layer detection FAILED.
s32 CALLBACK ISOgetDualInfo(s32* dualType, u32* _layer1start)
{
FindLayer1Start();
if( !FindLayer1Start() ) return -1;
if(layer1start<0)
{
@ -231,7 +243,7 @@ s32 CALLBACK ISOgetDualInfo(s32* dualType, u32* _layer1start)
*dualType = 1;
*_layer1start = layer1start;
}
return 1;
return 0;
}
s32 CALLBACK ISOgetDiskType()