Lines Matching refs:ip

485 throw new Error('chunk not found');this.parseRiffChunk(chunk);this.input=null};sf2.Parser.prototype.parseRiffChunk=function(chunk){var parser,data=this.input,ip=chunk.offset,signature;if(chunk.type!=='RIFF')
486 throw new Error('invalid chunk type:'+chunk.type);signature=String.fromCharCode(data[ip++],data[ip++],data[ip++],data[ip++]);if(signature!=='sfbk')
487 throw new Error('invalid signature:'+signature);parser=new sf2.Riff.Parser(data,{'index':ip,'length':chunk.size-4});parser.parse();if(parser.getNumberOfChunks()!==3)
488 throw new Error('invalid sfbk structure');this.parseInfoList(parser.getChunk(0));this.parseSdtaList(parser.getChunk(1));this.parsePdtaList(parser.getChunk(2))};sf2.Parser.prototype.parseInfoList=function(chunk){var parser,data=this.input,ip=chunk.offset,signature;if(chunk.type!=='LIST')
489 throw new Error('invalid chunk type:'+chunk.type);signature=String.fromCharCode(data[ip++],data[ip++],data[ip++],data[ip++]);if(signature!=='INFO')
490 throw new Error('invalid signature:'+signature);parser=new sf2.Riff.Parser(data,{'index':ip,'length':chunk.size-4});parser.parse()};sf2.Parser.prototype.parseSdtaList=function(chunk){var parser,data=this.input,ip=chunk.offset,signature;if(chunk.type!=='LIST')
491 throw new Error('invalid chunk type:'+chunk.type);signature=String.fromCharCode(data[ip++],data[ip++],data[ip++],data[ip++]);if(signature!=='sdta')
492 throw new Error('invalid signature:'+signature);parser=new sf2.Riff.Parser(data,{'index':ip,'length':chunk.size-4});parser.parse();if(parser.chunkList.length!==1)
493 throw new Error('TODO');this.samplingData=parser.getChunk(0)};sf2.Parser.prototype.parsePdtaList=function(chunk){var parser,data=this.input,ip=chunk.offset,signature;if(chunk.type!=='LIST')
494 throw new Error('invalid chunk type:'+chunk.type);signature=String.fromCharCode(data[ip++],data[ip++],data[ip++],data[ip++]);if(signature!=='pdta')
495 throw new Error('invalid signature:'+signature);parser=new sf2.Riff.Parser(data,{'index':ip,'length':chunk.size-4});parser.parse();if(parser.getNumberOfChunks()!==9)
496 throw new Error('invalid pdta chunk');this.parsePhdr((parser.getChunk(0)));this.parsePbag((parser.getChunk(1)));this.parsePmod((parser.getChunk(2)));this.parsePgen((parser.getChunk(3)));this.parseInst((parser.getChunk(4)));this.parseIbag((parser.getChunk(5)));this.parseImod((parser.getChunk(6)));this.parseIgen((parser.getChunk(7)));this.parseShdr((parser.getChunk(8)))};sf2.Parser.prototype.parsePhdr=function(chunk){var data=this.input,ip=chunk.offset,presetHeader=this.presetHeader=[],size=chunk.offset+chunk.size;if(chunk.type!=='phdr')
497 throw new Error('invalid chunk type:'+chunk.type);while(ip<size){presetHeader.push({presetName:String.fromCharCode.apply(null,data.subarray(ip,ip+=20)),preset:data[ip++]|(data[ip++]<<8),bank:data[ip++]|(data[ip++]<<8),presetBagIndex:data[ip++]|(data[ip++]<<8),library:(data[ip++]|(data[ip++]<<8)|(data[ip++]<<16)|(data[ip++]<<24))>>>0,genre:(data[ip++]|(data[ip++]<<8)|(data[ip++]<<16)|(data[ip++]<<24))>>>0,morphology:(data[ip++]|(data[ip++]<<8)|(data[ip++]<<16)|(data[ip++]<<24))>>>0})}};sf2.Parser.prototype.parsePbag=function(chunk){var data=this.input,ip=chunk.offset,presetZone=this.presetZone=[],size=chunk.offset+chunk.size;if(chunk.type!=='pbag')
498 throw new Error('invalid chunk type:'+chunk.type);while(ip<size){presetZone.push({presetGeneratorIndex:data[ip++]|(data[ip++]<<8),presetModulatorIndex:data[ip++]|(data[ip++]<<8)})}};sf2.Parser.prototype.parsePmod=function(chunk){if(chunk.type!=='pmod')
500 throw new Error('invalid chunk type:'+chunk.type);this.presetZoneGenerator=this.parseGenerator(chunk)};sf2.Parser.prototype.parseInst=function(chunk){var data=this.input,ip=chunk.offset,instrument=this.instrument=[],size=chunk.offset+chunk.size;if(chunk.type!=='inst')
501 throw new Error('invalid chunk type:'+chunk.type);while(ip<size){instrument.push({instrumentName:String.fromCharCode.apply(null,data.subarray(ip,ip+=20)),instrumentBagIndex:data[ip++]|(data[ip++]<<8)})}};sf2.Parser.prototype.parseIbag=function(chunk){var data=this.input,ip=chunk.offset,instrumentZone=this.instrumentZone=[],size=chunk.offset+chunk.size;if(chunk.type!=='ibag')
502 throw new Error('invalid chunk type:'+chunk.type);while(ip<size){instrumentZone.push({instrumentGeneratorIndex:data[ip++]|(data[ip++]<<8),instrumentModulatorIndex:data[ip++]|(data[ip++]<<8)})}};sf2.Parser.prototype.parseImod=function(chunk){if(chunk.type!=='imod')
504 throw new Error('invalid chunk type:'+chunk.type);this.instrumentZoneGenerator=this.parseGenerator(chunk)};sf2.Parser.prototype.parseShdr=function(chunk){var data=this.input,ip=chunk.offset,samples=this.sample=[],sampleHeader=this.sampleHeader=[],size=chunk.offset+chunk.size,sampleName,start,end,startLoop,endLoop,sampleRate,originalPitch,pitchCorrection,sampleLink,sampleType;if(chunk.type!=='shdr')
505 throw new Error('invalid chunk type:'+chunk.type);while(ip<size){sampleName=String.fromCharCode.apply(null,data.subarray(ip,ip+=20));start=(data[ip++]<<0)|(data[ip++]<<8)|(data[ip++]<<16)|(data[ip++]<<24);end=(data[ip++]<<0)|(data[ip++]<<8)|(data[ip++]<<16)|(data[ip++]<<24);startLoop=(data[ip++]<<0)|(data[ip++]<<8)|(data[ip++]<<16)|(data[ip++]<<24);endLoop=(data[ip++]<<0)|(data[ip++]<<8)|(data[ip++]<<16)|(data[ip++]<<24);sampleRate=(data[ip++]<<0)|(data[ip++]<<8)|(data[ip++]<<16)|(data[ip++]<<24);originalPitch=data[ip++];pitchCorrection=(data[ip++]<<24)>>24;sampleLink=data[ip++]|(data[ip++]<<8);sampleType=data[ip++]|(data[ip++]<<8);var sample=new Int16Array(new Uint8Array(data.subarray(this.samplingData.offset+start*2,this.samplingData.offset+end*2)).buffer);startLoop-=start;endLoop-=start;if(sampleRate>0){var adjust=this.adjustSampleData(sample,sampleRate);sample=adjust.sample;sampleRate*=adjust.multiply;startLoop*=adjust.multiply;endLoop*=adjust.multiply}
508 return{sample:sample,multiply:multiply}};sf2.Parser.prototype.parseModulator=function(chunk){var data=this.input,ip=chunk.offset,size=chunk.offset+chunk.size,code,key,output=[];while(ip<size){ip+=2;code=data[ip++]|(data[ip++]<<8);key=sf2.Parser.GeneratorEnumeratorTable[code];if(key===undefined){output.push({type:key,value:{code:code,amount:data[ip]|(data[ip+1]<<8)<<16>>16,lo:data[ip++],hi:data[ip++]}})}else{switch(key){case'keyRange':case'velRange':case'keynum':case'velocity':output.push({type:key,value:{lo:data[ip++],hi:data[ip++]}});break;default:output.push({type:key,value:{amount:data[ip++]|(data[ip++]<<8)<<16>>16}});break}}
509 ip+=2;ip+=2}
510 return output};sf2.Parser.prototype.parseGenerator=function(chunk){var data=this.input,ip=chunk.offset,size=chunk.offset+chunk.size,code,key,output=[];while(ip<size){code=data[ip++]|(data[ip++]<<8);key=sf2.Parser.GeneratorEnumeratorTable[code];if(key===undefined){output.push({type:key,value:{code:code,amount:data[ip]|(data[ip+1]<<8)<<16>>16,lo:data[ip++],hi:data[ip++]}});continue}
511 switch(key){case'keynum':case'keyRange':case'velRange':case'velocity':output.push({type:key,value:{lo:data[ip++],hi:data[ip++]}});break;default:output.push({type:key,value:{amount:data[ip++]|(data[ip++]<<8)<<16>>16}});break}}
517 return{modgen:modgen}};sf2.Parser.GeneratorEnumeratorTable=['startAddrsOffset','endAddrsOffset','startloopAddrsOffset','endloopAddrsOffset','startAddrsCoarseOffset','modLfoToPitch','vibLfoToPitch','modEnvToPitch','initialFilterFc','initialFilterQ','modLfoToFilterFc','modEnvToFilterFc','endAddrsCoarseOffset','modLfoToVolume',undefined,'chorusEffectsSend','reverbEffectsSend','pan',undefined,undefined,undefined,'delayModLFO','freqModLFO','delayVibLFO','freqVibLFO','delayModEnv','attackModEnv','holdModEnv','decayModEnv','sustainModEnv','releaseModEnv','keynumToModEnvHold','keynumToModEnvDecay','delayVolEnv','attackVolEnv','holdVolEnv','decayVolEnv','sustainVolEnv','releaseVolEnv','keynumToVolEnvHold','keynumToVolEnvDecay','instrument',undefined,'keyRange','velRange','startloopAddrsCoarseOffset','keynum','velocity','initialAttenuation',undefined,'endloopAddrsCoarseOffset','coarseTune','fineTune','sampleID','sampleModes',undefined,'scaleTuning','exclusiveClass','overridingRootKey'];sf2.Riff={};sf2.Riff.Parser=function(input,options){options=options||{};this.input=input;this.ip=options.index||0;this.length=options.length||input.length-this.ip;this.offset=this.ip;this.padding=options.padding!==undefined?options.padding:true;this.bigEndian=options.bigEndian!==undefined?options.bigEndian:false};sf2.Riff.Chunk=function(type,size,offset){this.type=type;this.size=size;this.offset=offset};sf2.Riff.Parser.prototype.parse=function(){var length=this.length+this.offset;this.chunkList=[];while(this.ip<length)
518 this.parseChunk()};sf2.Riff.Parser.prototype.parseChunk=function(){var input=this.input,ip=this.ip,size;this.chunkList.push(new sf2.Riff.Chunk(String.fromCharCode(input[ip++],input[ip++],input[ip++],input[ip++]),(size=this.bigEndian?((input[ip++]<<24)|(input[ip++]<<16)|(input[ip++]<<8)|(input[ip++])):((input[ip++])|(input[ip++]<<8)|(input[ip++]<<16)|(input[ip++]<<24))),ip));ip+=size;if((this.padding&&(ip-this.offset)&1)===1)
519 ip++;this.ip=ip};sf2.Riff.Parser.prototype.getChunk=function(index){var chunk=this.chunkList[index];if(chunk===undefined)