79 lines
2.1 KiB
Haxe
79 lines
2.1 KiB
Haxe
package nmegl.utils;
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@:arrayAccess
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class Int32Array extends ArrayBufferView implements ArrayAccess<Int> {
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static public inline var SBYTES_PER_ELEMENT = 4;
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public var BYTES_PER_ELEMENT (default, null):Int;
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public var length (default, null):Int;
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public function new (bufferOrArray:Dynamic, start:Int = 0, length:Null<Int> = null) {
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BYTES_PER_ELEMENT = 4;
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if (Std.is (bufferOrArray, Int)) {
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super (Std.int (bufferOrArray) << 2);
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} else if (Std.is (bufferOrArray, Array)) {
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var ints:Array<Int> = bufferOrArray;
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if (length != null) {
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this.length = length;
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} else {
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this.length = ints.length - start;
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}
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super (this.length << 2);
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#if !cpp
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buffer.position = 0;
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#end
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for (i in 0...this.length) {
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#if cpp
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untyped __global__.__hxcpp_memory_set_i32 (bytes, (i << 2), ints[i]);
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#else
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buffer.writeInt (ints[i + start]);
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#end
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}
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} else {
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super (bufferOrArray, start, length);
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if ((byteLength & 0x03) > 0) {
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throw ("Invalid array size");
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}
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this.length = byteLength >> 2;
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if ((this.length << 2) != byteLength) {
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throw "Invalid length multiple";
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}
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}
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}
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@:noCompletion @:keep inline public function __get (index:Int):Int { return getInt32 (index << 2); }
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@:noCompletion @:keep inline public function __set (index:Int, value:Int):Void { setInt32 (index << 2, value); }
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} |