oss/RomPatcher.js
oss/RomPatcher.js
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fix for IPS: can expand target ROM now if truncate flag is bigger than source ROM

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Marc Robledo 2022-04-17 19:10:24 +02:00
parent e81b3d821b
commit af60e80985
1 changed files with 8 additions and 3 deletions
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11
js/formats/ips.js
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@ -1,4 +1,4 @@
/* IPS module for Rom Patcher JS v20200502 - Marc Robledo 2016-2020 - http://www.marcrobledo.com/license */ /* IPS module for Rom Patcher JS v20220417 - Marc Robledo 2016-2022 - http://www.marcrobledo.com/license */
/* File format specification: http://www.smwiki.net/wiki/IPS_file_format */ /* File format specification: http://www.smwiki.net/wiki/IPS_file_format */
@ -71,9 +71,14 @@ IPS.prototype.export=function(fileName){
} }
IPS.prototype.apply=function(romFile){ IPS.prototype.apply=function(romFile){
if(this.truncate){ if(this.truncate){
tempFile=romFile.slice(0, this.truncate); if(this.truncate>romFile.fileSize){ //expand (discussed here: https://github.com/marcrobledo/RomPatcher.js/pull/46)
tempFile=new MarcFile(this.truncate);
romFile.copyToFile(tempFile, 0, romFile.fileSize, 0);
}else{ //truncate
tempFile=romFile.slice(0, this.truncate);
}
}else{ }else{
//calculate target ROM size, expanding it if any record offset is beyond target ROM size
var newFileSize=romFile.fileSize; var newFileSize=romFile.fileSize;
for(var i=0; i<this.records.length; i++){ for(var i=0; i<this.records.length; i++){
var rec=this.records[i]; var rec=this.records[i];