oss/RomPatcher.js
oss/RomPatcher.js
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patch creation can now create IPS patches if offsets are below format limit, rearranged files internally

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Marc Robledo 2020-05-02 12:10:46 +02:00
parent e5bc46d725
commit 8146f4860a
27 changed files with 190 additions and 171 deletions
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63
js/worker_create.js Normal file
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/* Rom Patcher JS v20200502 - Marc Robledo 2016-2020 - http://www.marcrobledo.com/license */
self.importScripts(
'./MarcFile.js',
'./crc.js',
'./formats/ips.js',
'./formats/aps.js',
'./formats/ups.js',
'./formats/bps.js',
'./formats/ppf.js',
'./formats/rup.js'
);
self.onmessage = event => { // listen for messages from the main thread
var sourceFile=new MarcFile(event.data.sourceFileU8Array);
var modifiedFile=new MarcFile(event.data.modifiedFileU8Array);
var mode=event.data.patchMode;
sourceFile.seek(0);
modifiedFile.seek(0);
var patch;
if(mode==='ips'){
patch=createIPSFromFiles(sourceFile, modifiedFile);
}else if(mode==='bps'){
//use delta mode (slower, but smaller patch size) only with <4mb files
patch=createBPSFromFiles(sourceFile, modifiedFile, (sourceFile.fileSize<=4194304));
}else if(mode==='ups'){
patch=createUPSFromFiles(sourceFile, modifiedFile);
}else if(mode==='aps'){
patch=createAPSFromFiles(sourceFile, modifiedFile);
}else if(mode==='rup'){
patch=createRUPFromFiles(sourceFile, modifiedFile);
}else if(mode==='ppf'){
patch=createPPFFromFiles(sourceFile, modifiedFile);
}else{
throw new Error('error_invalid_patch');
}
//special case: PPF+modified size>original size, skip verification
if(!(mode==='ppf' && sourceFile.fileSize>modifiedFile.fileSize) && crc32(modifiedFile)!==crc32(patch.apply(sourceFile))){
throw new Error('Unexpected error: verification failed. Patched file and modified file mismatch. Please report this bug.');
}
var newPatchFile=patch.export('file');
//console.log('postMessage');
self.postMessage(
{
//sourceFileU8Array:event.data.sourceFileU8Array,
//modifiedFileU8Array:event.data.modifiedFileU8Array,
patchFileU8Array:newPatchFile._u8array
},
[
//event.data.sourceFileU8Array.buffer,
//event.data.modifiedFileU8Array.buffer,
newPatchFile._u8array.buffer
]
);
};