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
View file

@ -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();
}

2
_cache_service_worker.js
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@ -12,7 +12,7 @@ limitations under the License.
mod by marcrobledo, original from: https://github.com/GoogleChrome/samples/blob/gh-pages/service-worker/basic/service-worker.js
*/
const PRECACHE_ID='v20180920';
const PRECACHE_ID='v20180926';
const PRECACHE_FILES=[
'index.html','./',
'RomPatcher.css',

12
bps.js
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@ -1,4 +1,4 @@
/* BPS module for RomPatcher.js v20180428 - Marc Robledo 2016-2018 - http://www.marcrobledo.com/license */
/* BPS module for RomPatcher.js v20180926 - Marc Robledo 2016-2018 - http://www.marcrobledo.com/license */
/* File format specification: https://www.romhacking.net/documents/746/ */
var BPS_MAGIC='BPS1';
@ -49,9 +49,12 @@ BPS.prototype.apply=function(romFile){
seek+=action.length;
}else if(action.type===BPS_ACTION_SOURCE_COPY || action.type===BPS_ACTION_TARGET_COPY){
seek+=decodeBPS(this.file, seek).length;
}else{
//console.log(action.type)
}
}
tempFile=new MarcBinFile(newFileSize);
//alert(newFileSize);
//patch
@ -68,6 +71,7 @@ BPS.prototype.apply=function(romFile){
if(action.type===BPS_ACTION_SOURCE_READ){
tempFile.writeBytes(outputOffset, romFile.readBytes(outputOffset, action.length));
outputOffset+=action.length;
//seek+=action.length;
}else if(action.type===BPS_ACTION_TARGET_READ){
tempFile.writeBytes(outputOffset, this.file.readBytes(seek, action.length));
@ -118,8 +122,10 @@ function readBPSFile(file){
var decodedMetaDataLength=decodeBPS(file, seek);
seek+=decodedMetaDataLength.length;
patchFile.metaData=file.readString(seek, decodedMetaDataLength.length);
seek+=patchFile.metaData.length;
if(decodedMetaDataLength.number){
patchFile.metaData=file.readString(seek, decodedMetaDataLength.number);
seek+=patchFile.metaData.number;
}
patchFile.actionsOffset=seek;
patchFile.file=file;

2
index.html
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@ -103,7 +103,7 @@
<!-- FOOTER -->
<footer>
Rom Patcher JS <small>rev20180920</small> by <a href="/">Marc Robledo</a>
Rom Patcher JS <small>rev20180926</small> by <a href="/">Marc Robledo</a>
<br />
<i class="icon github"></i> <a href="https://github.com/marcrobledo/RomPatcher.js/" target="_blank">See on GitHub</a>
<i class="icon heart"></i> <a href="https://www.paypal.me/marcrobledo/5" target="_blank" rel="nofollow">Donate</a>

4
ips.js
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@ -1,4 +1,4 @@
/* IPS module for RomPatcher.js v20180919 - Marc Robledo 2016-2018 - http://www.marcrobledo.com/license */
/* IPS module for RomPatcher.js v20180925 - Marc Robledo 2016-2018 - http://www.marcrobledo.com/license */
/* File format specification: http://www.smwiki.net/wiki/IPS_file_format */
var MAX_IPS_SIZE=16777216;
@ -169,7 +169,7 @@ function createIPSFromFiles(original, modified){
/* force length to be 0xffff-6 bytes to keep IPS standard */
var nearbyDifference=true;
while(nearbyDifference && length<(0xffff-6)){
if(seek+6>modified.fileSize){
if((seek+6)>=modified.fileSize){
var finalSeek=modified.fileSize-seek-1;
length+=finalSeek;
seek+=finalSeek;