oss/RomPatcher.js
oss/RomPatcher.js
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fixed a bug in IPS patching, now it can patch files and make them bigger if needed

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Marc Robledo 2017-10-22 11:09:22 +02:00
parent ad3bbb54c7
commit 69fcad33bb
2 changed files with 8 additions and 9 deletions
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15
ips.js
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@ -1,4 +1,4 @@
/* IPS module for RomPatcher.js v20170722 - Marc Robledo 2016-2017 - http://www.marcrobledo.com/license */
/* IPS module for RomPatcher.js v20171022 - Marc Robledo 2016-2017 - http://www.marcrobledo.com/license */
/* File format specification: http://www.smwiki.net/wiki/IPS_file_format */
var MAX_IPS_SIZE=16777216;
@ -76,22 +76,21 @@ IPS.prototype.export=function(){
return tempFile
}
IPS.prototype.apply=function(romFile){
var newFileSize=romFile.fileSize;
for(var i=0; i<this.records.length; i++){
var rec=this.records[i];
if(rec.type===RECORD_RLE){
if(rec.offset+rec.length>romFile.fileSize){
MarcDialogs.alert('Invalid ROM file (too big?).');
return false;
if(rec.offset+rec.length>newFileSize){
newFileSize=rec.offset+rec.length;
}
}else{
if(rec.offset+rec.data.length>romFile.fileSize){
MarcDialogs.alert('Invalid ROM file (too big?).');
return false;
if(rec.offset+rec.data.length>newFileSize){
newFileSize=rec.offset+rec.data.length;
}
}
}
tempFile=new MarcBinFile(romFile.fileSize);
tempFile=new MarcBinFile(newFileSize);
var clonedFileSize=this.truncate || romFile.fileSize;
for(var i=0; i<romFile.fileSize; i++)