oss/RomPatcher.js
oss/RomPatcher.js
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added SNES header removal option before patching

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Marc Robledo 2017-11-12 16:29:14 +01:00
parent c54fe27006
commit 14cae45bf9
6 changed files with 71 additions and 26 deletions
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63
RomPatcher.js
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@ -1,6 +1,16 @@
/* RomPatcher.js v20171102 - Marc Robledo 2016-2017 - http://www.marcrobledo.com/license */
var MAX_ROM_SIZE=33554432;
var romFile, patch, romFile1, romFile2, tempFile, romHashes={};
/* RomPatcher.js v20171107 - Marc Robledo 2016-2017 - http://www.marcrobledo.com/license */
var MAX_ROM_SIZE=33554432;var SNES_HEADERED_ROMS_SIZE=[
262144+512,
524288+512,
1048576+512,
2097152+512,
4194304+512,
8388608+512,
16777216+512,
33554432+512,
50331648+512
];
var romFile, headeredRomFile, unheaderedRomFile, patch, romFile1, romFile2, tempFile;
/* Shortcuts */
function addEvent(e,ev,f){e.addEventListener(ev,f,false)}
function el(e){return document.getElementById(e)}
@ -17,16 +27,16 @@ addEvent(window,'load',function(){
addEvent(el('input-file-rom'), 'change', function(){
romFile=new MarcBinFile(this, function(){
el('rom-info').innerHTML='';
sha1(romFile);
romHashes.crc32=crc32(romFile);
romHashes.md5=md5(romFile);
el('checkbox-removeheader').checked=false;
unheaderedRomFile=null;
var crc32str=romHashes.crc32.toString(16);
while(crc32str.length<8)
crc32str='0'+crc32str;
el('rom-info').innerHTML+='CRC32: '+crc32str+'<br/>';
el('rom-info').innerHTML+='MD5: '+romHashes.md5+'<br/>';
if(SNES_HEADERED_ROMS_SIZE.indexOf(romFile.fileSize)>=0){
el('row-removeheader').style.display='flex';
}else{
el('row-removeheader').style.display='none';
}
updateChecksums(romFile);
});
});
addEvent(el('input-file-patch'), 'change', function(){
@ -38,10 +48,36 @@ addEvent(window,'load',function(){
addEvent(el('input-file-rom2'), 'change', function(){
romFile2=new MarcBinFile(this);
});
addEvent(el('checkbox-removeheader'), 'change', function(){
if(!unheaderedRomFile){
headeredRomFile=romFile;
unheaderedRomFile=new MarcBinFile(headeredRomFile.fileSize-512);
unheaderedRomFile.writeBytes(0, headeredRomFile.readBytes(512, headeredRomFile.fileSize-512));
unheaderedRomFile.fileName=headeredRomFile.fileName;
}
if(this.checked)
romFile=unheaderedRomFile;
else
romFile=headeredRomFile;
updateChecksums(romFile);
});
});
function updateChecksums(file){
el('rom-info').style.display='block';
sha1(file);
var crc32str=crc32(file).toString(16);
while(crc32str.length<8)
crc32str='0'+crc32str;
el('crc32').innerHTML=crc32str;
el('md5').innerHTML=md5(file);
}
@ -130,8 +166,7 @@ function sha1(file){
hexString+='0'+bytes[i].toString(16);
else
hexString+=bytes[i].toString(16);
romHashes.sha1=hexString;
el('rom-info').innerHTML+='SHA-1: '+romHashes.sha1+'<br/>';
el('sha1').innerHTML=hexString;
}).catch(function(error){
console.error(error);
});