oss/RomPatcher.js
oss/RomPatcher.js
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fixed important bugs while creating IPS patches and applying some BPS patches

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This commit is contained in:
Marc Robledo 2018-09-26 12:47:44 +02:00
parent 860a2c33c4
commit 9d85db3baa
5 changed files with 24 additions and 10 deletions
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14
RomPatcher.js
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@ -1,8 +1,9 @@
/* RomPatcher.js v20180920 - Marc Robledo 2016-2018 - http://www.marcrobledo.com/license */
/* RomPatcher.js v20180924 - Marc Robledo 2016-2018 - http://www.marcrobledo.com/license */
var MAX_ROM_SIZE=33554432;
var MORE_SNES_SIZES_HEADERLESS=[786432,1310720,1572864,2621440,3145728,5242880,6291456];
var MORE_SNES_SIZES_HEADERLESS=[393216,786432,1310720,1572864,2621440,3145728,5242880,6291456]; //note: 393216 is a PCE file size
var DEBUG_CREATE_UNHEADERED_PATCH=false;
var romFile, headeredRomFile, unheaderedRomFile, patch, romFile1, romFile2, tempFile;
/* Shortcuts */
@ -96,7 +97,7 @@ addEvent(window,'load',function(){
});
function isPowerOfTwo(romFile){return romFile.fileSize && (romFile.fileSize & (romFile.fileSize-1))===0}
function isSNESExtension(romFile){return /\.(smc|sfc|fig|swc)$/.test(romFile.fileName)}
function isSNESExtension(romFile){return /\.(smc|sfc|fig|swc|pce)$/.test(romFile.fileName)}
function isSNESHeaderless(romFile){return isSNESExtension(romFile) && (isPowerOfTwo(romFile) || MORE_SNES_SIZES_HEADERLESS.indexOf(romFile.fileSize)>=0)}
function isSNESHeadered(romFile){return isSNESExtension(romFile) && (isPowerOfTwo(romFile.fileSize-512) || MORE_SNES_SIZES_HEADERLESS.indexOf(romFile.fileSize-512)>=0)}
@ -149,6 +150,13 @@ function applyPatchFile(p,r){
unheaderedPatchedROM.fileName=patchedROM.fileName;
unheaderedPatchedROM.writeBytes(0, patchedROM.readBytes(512, patchedROM.fileSize-512));
unheaderedPatchedROM.save();
if(DEBUG_CREATE_UNHEADERED_PATCH){
romFile1=unheaderedRomFile;
romFile2=unheaderedPatchedROM;
unheaderedPatchedROM.fileName=unheaderedPatchedROM.fileName.replace(' (patched)','');
createPatchFile();
}
}else{
patchedROM.save();
}