mirror of
https://github.com/marcrobledo/RomPatcher.js.git
synced 2025-07-17 16:38:31 +00:00
added BPS support (apply patch only)
This commit is contained in:
Marc Robledo
parent
69fcad33bb
commit
3b1b932346
5 changed files with 188 additions and 25 deletions
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@ -1,4 +1,4 @@
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/* ips-patcher.js v20170722 - Marc Robledo 2016-2017 - http://www.marcrobledo.com/license */
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/* RomPatcher.js v20171102 - Marc Robledo 2016-2017 - http://www.marcrobledo.com/license */
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var MAX_ROM_SIZE=33554432;
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var romFile, patch, romFile1, romFile2, tempFile, romHashes={};
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/* Shortcuts */
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@ -54,10 +54,12 @@ function _readPatchFile(){
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patch=readUPSFile(tempFile);
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}else if(tempFile.readString(0,5)===APS_MAGIC){
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patch=readAPSFile(tempFile);
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}else if(tempFile.readString(0,4)===BPS_MAGIC){
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patch=readBPSFile(tempFile);
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}/*else if(tempFile.readString(0,4)===APSGBA_MAGIC){
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patch=readAPSGBAFile(tempFile);
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}*/else {
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MarcDialogs.alert('Invalid IPS/UPS/APS file');
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MarcDialogs.alert('Invalid IPS/UPS/APS/BPS file');
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}
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}
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function openPatchFile(f){tempFile=new MarcBinFile(f, _readPatchFile)}
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@ -74,7 +76,7 @@ function applyPatchFile(p,r){
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function createPatchFile(){
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var MODES=['ips','ups','aps','apsn64'/*,'apsgba'*/];
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var MODES=['ips','ups','aps','apsn64'/*,'apsgba','bps'*/];
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var mode=0;
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for(var i=0; i<MODES.length && !mode; i++)
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if(el('radio-'+MODES[i]).checked)
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@ -100,6 +102,8 @@ function createPatchFile(){
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newPatch=createAPSFromFiles(romFile1, romFile2, true);
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}else if(mode==='apsgba'){
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newPatch=createAPSGBAFromFiles(romFile1, romFile2);
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}else if(mode==='bps'){
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newPatch=createBPSFromFiles(romFile1, romFile2);
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}
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newPatch.export().save();
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}
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172
bps.js
Normal file
172
bps.js
Normal file
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@ -0,0 +1,172 @@
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/* BPS module for RomPatcher.js v20171103 - Marc Robledo 2016-2017 - http://www.marcrobledo.com/license */
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/* File format specification: https://www.romhacking.net/documents/746/ */
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var BPS_MAGIC='BPS1';
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var BPS_ACTION_SOURCE_READ=0;
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var BPS_ACTION_TARGET_READ=1;
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var BPS_ACTION_SOURCE_COPY=2;
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var BPS_ACTION_TARGET_COPY=3;
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function BPS(){
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this.sourceSize=0;
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this.targetSize=0;
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this.metaData='';
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this.actionsOffset=0;
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this.file=null;
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this.sourceChecksum=0;
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this.targetChecksum=0;
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this.patchChecksum=0;
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}
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BPS.prototype.toString=function(){
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var s='Source size: '+this.sourceSize;
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s+='\Target size: '+this.targetSize;
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s+='\nMetadata: '+this.metaData;
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s+='\nActions offset: '+this.actionsOffset;
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return s
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}
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/*BPS.prototype.export=function(){
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}*/
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BPS.prototype.apply=function(romFile){
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if(this.sourceChecksum!==crc32(romFile,false)){
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MarcDialogs.alert('Warning: invalid source ROM checksum');
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}
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// first we determine target file size
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var newFileSize=0;
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var seek=this.actionsOffset;
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while(seek<(this.file.fileSize-12)){
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var data=decodeBPS(this.file, seek);
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var action={type: data.number & 3, length: (data.number >> 2)+1};
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seek+=data.length;
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newFileSize+=action.length;
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if(action.type===BPS_ACTION_TARGET_READ){
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seek+=action.length;
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}else if(action.type===BPS_ACTION_SOURCE_COPY || action.type===BPS_ACTION_TARGET_COPY){
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seek+=decodeBPS(this.file, seek).length;
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}
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}
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tempFile=new MarcBinFile(newFileSize);
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//patch
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var outputOffset=0;
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var sourceRelativeOffset=0;
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var targetRelativeOffset=0;
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seek=this.actionsOffset;
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while(seek<(this.file.fileSize-12)){
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var data=decodeBPS(this.file, seek);
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var action={type: data.number & 3, length: (data.number >> 2)+1};
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//console.log('0x'+seek.toString(16)+' - action: '+action.type+':'+action.length);
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seek+=data.length;
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if(action.type===BPS_ACTION_SOURCE_READ){
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tempFile.writeBytes(outputOffset, romFile.readBytes(outputOffset, action.length));
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outputOffset+=action.length;
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}else if(action.type===BPS_ACTION_TARGET_READ){
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tempFile.writeBytes(outputOffset, this.file.readBytes(seek, action.length));
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outputOffset+=action.length;
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seek+=action.length;
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}else if(action.type===BPS_ACTION_SOURCE_COPY){
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var data2=decodeBPS(this.file, seek);
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seek+=data2.length;
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sourceRelativeOffset+=(data2.number & 1 ? -1 : +1) * (data2.number >> 1);
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while(action.length--){
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tempFile.writeByte(outputOffset, romFile.readByte(sourceRelativeOffset));
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outputOffset++;
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sourceRelativeOffset++;
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}
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}else if(action.type===BPS_ACTION_TARGET_COPY){
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var data2=decodeBPS(this.file, seek);
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seek+=data2.length;
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targetRelativeOffset += (data2.number & 1 ? -1 : +1) * (data2.number >> 1);
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while(action.length--) {
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tempFile.writeByte(outputOffset, tempFile.readByte(targetRelativeOffset));
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outputOffset++;
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targetRelativeOffset++;
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}
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}
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}
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if(this.targetChecksum!==crc32(tempFile,false)){
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MarcDialogs.alert('Warning: invalid target ROM checksum');
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}
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return tempFile
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}
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function readBPSFile(file){
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file.littleEndian=true;
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var patchFile=new BPS();
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var seek=4; //skip BPS1
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var decodedSourceSize=decodeBPS(file, seek);
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patchFile.sourceSize=decodedSourceSize.number;
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seek+=decodedSourceSize.length;
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var decodedTargetSize=decodeBPS(file, seek);
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patchFile.targetSize=decodedTargetSize.number;
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seek+=decodedTargetSize.length;
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var decodedMetaDataLength=decodeBPS(file, seek);
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seek+=decodedMetaDataLength.length;
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patchFile.metaData=file.readString(seek, decodedMetaDataLength.length);
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seek+=patchFile.metaData.length;
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patchFile.actionsOffset=seek;
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patchFile.file=file;
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patchFile.sourceChecksum=file.readInt(file.fileSize-12);
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patchFile.targetChecksum=file.readInt(file.fileSize-8);
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patchFile.patchChecksum=file.readInt(file.fileSize-4);
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if(patchFile.patchChecksum!==crc32(file,true)){
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MarcDialogs.alert('Warning: invalid patch checksum');
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}
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return patchFile;
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}
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/*function createBPSFromFiles(original, modified){
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}*/
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/*function encodeBPS(number){
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number=number>>>0;
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var dataBytes=[];
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while(true){
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var x = number & 0x7f;
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number >>= 7;
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if(number == 0){
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dataBytes.push(0x80 | x);
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break;
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}
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dataBytes.push(x);
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number--;
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}
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return dataBytes;
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}*/
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function decodeBPS(dataBytes, i){
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var number = 0, shift = 1;
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var len=0;
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while(true){
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var x = dataBytes.readByte(i);
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i++;
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len++;
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number += (x & 0x7f) * shift;
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if(x & 0x80)
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break;
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shift <<= 7;
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number += shift;
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}
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return {number:number,length:len};
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}
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11
index.html
11
index.html
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@ -12,6 +12,8 @@
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<script type="text/javascript" src="./ips.js"></script>
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<script type="text/javascript" src="./ups.js"></script>
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<script type="text/javascript" src="./aps.js"></script>
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<!-- <script type="text/javascript" src="./apsgba.js"></script> -->
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<script type="text/javascript" src="./bps.js"></script>
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<script type="text/javascript" src="./ByteFlipper.js"></script>
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</head>
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<body>
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@ -35,7 +37,7 @@
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<!-- APP -->
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<div class="wrapper" id="the-app">
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<h3 class="red">Apply patch</h3>
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<div class="container-description">Apply an IPS/UPS patch to your ROM</div>
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<div class="container-description">Apply a patch to your ROM</div>
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<div class="container">
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<div class="row">
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<div class="six columns text-right"><label for="input-file-rom">ROM file:</label></div>
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@ -46,7 +48,7 @@
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</div>
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<div class="row">
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<div class="six columns text-right"><label for="input-file-patch">Patch file (IPS/UPS/APS):</label></div>
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<div class="six columns text-right"><label for="input-file-patch">Patch file <small>(IPS/UPS/APS/BPS)</small>:</label></div>
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<div class="six columns">
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<input type="file" id="input-file-patch" />
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</div>
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@ -60,7 +62,7 @@
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<h3 class="blue">Create patch</h3>
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<div class="container-description">Create an IPS/UPS/APS patch from two different ROMs </div>
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<div class="container-description">Create a patch from two different ROMs </div>
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<div class="container">
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<div class="row">
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<div class="six columns text-right"><label for="input-file-rom1">Original ROM:</label></div>
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@ -83,6 +85,7 @@
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<input type="radio" id="radio-ups" name="patch-type" /><label for="radio-ups">UPS</label>
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<input type="radio" id="radio-aps" name="patch-type" /><label for="radio-aps">APS</label>
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<input type="radio" id="radio-apsn64" name="patch-type" /><label for="radio-apsn64">APS (N64)</label>
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<!-- <input type="radio" id="radio-bps" name="patch-type" /><label for="radio-bps">BPS</label> -->
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</div>
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</div>
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@ -94,7 +97,7 @@
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<h3 class="green">Byte flipper</h3>
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<div class="container-description">This tool can flip bytes on a file in order to change its endianness</div>
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<div class="container-description">This tool flips bytes in a file in order to change its endianness</div>
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<div class="container">
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<div class="row">
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<div class="six columns text-right"><label for="input-file-flip">File</label></div>
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@ -1,17 +0,0 @@
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CACHE MANIFEST
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#v20170723
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# WARNING: THIS FILE WILL BE DEPRECATED
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#CACHE:
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index.html
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RomPatcher.css
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RomPatcher.js
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favicon.png
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logo.png
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ips.js
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ups.js
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aps.js
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ByteFlipper.js
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# force these files to be loaded in network
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NETWORK:
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*
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@ -1,5 +1,5 @@
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CACHE MANIFEST
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#v20171021
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#v20171103
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#CACHE:
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index.html
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RomPatcher.css
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@ -9,6 +9,7 @@ logo.png
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ips.js
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ups.js
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aps.js
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bps.js
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ByteFlipper.js
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# force these files to be loaded in network
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