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///// | |
// An implementation of the Sphere 1.x ByteArray object using only TypedArrays. | |
// | |
// Tested to work in SpiderMonkey and V8. | |
// | |
// Wrapper function to allow any TypedArray to 'become' a ByteArray. | |
function ByteArrayFromTypedArray(buffer){ | |
var byteview; | |
if(buffer instanceof ArrayBuffer) | |
byteview = new Uint8Array(buffer); | |
else if(buffer instanceof Uint8Array) | |
byteview = buffer; | |
else | |
throw "Argument 0 is not a Harmony Typed Array."; | |
// Tack on the members needed for ByteArray. | |
Object.defineProperty(byteview, "length", {value:byteview.byteLength}); | |
Object.defineProperty(byteview, "concat", | |
{value:function(a){ | |
if(!(a instanceof Uint8Array)) | |
throw "Argument 0 is not a ByteArray or a Harmony Typed Array."; | |
var thisArray = Array.apply([], this); | |
var otherArray = Array.apply([], a); | |
var cArray = thisArray.concat(otherArray); | |
var r = CreateByteArray(cArray.length); | |
for(var i = 0;i<cArray.length; i++) | |
r[i] = cArray[i]; | |
return r; | |
}}); | |
Object.defineProperty(byteview, "slice", | |
{value:function(a, e){ | |
var thisArray = Array.apply([], this); | |
var sArray = thisArray.slice(a, e); | |
var r = CreateByteArray(sArray.length); | |
for(var i = 0;i<sArray.length; i++) | |
r[i] = sArray[i]; | |
return r; | |
}}); | |
return byteview; | |
} | |
function CreateByteArray(length){ | |
var buffer = new ArrayBuffer(length); | |
var byteview = new Uint8Array(buffer); | |
return ByteArrayFromTypedArray(byteview); | |
} | |
function CreateByteArrayFromString(a){ | |
var r = CreateByteArray(a.length); | |
for(var i = 0;i<a.length; i++) | |
r[i] = a.charCodeAt(i); | |
return r; | |
} | |
function CreateByteArrayFromString(a){ | |
var r = CreateByteArray(a.length); | |
for(var i = 0;i<a.length; i++) | |
r[i] = a.charCodeAt(i); | |
return r; | |
} | |
function CreateStringFromByteArray(a){ | |
if(!(a instanceof Uint8Array)) | |
throw "Argument 0 is not a ByteArray or a Harmony Typed Array."; | |
var r = ""; | |
var va = Array.apply([], a); | |
for(var i = 0;i<a.length; i++) | |
r += String.fromCharCode(va[i]); | |
return r; | |
} |
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Hi do you think you could tell me is there any ByteArray.js for ActionScript3 ByteArray (I am interested in writeUTPBytes and WriteInt function of AS3 byteArray)