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-/*
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- * Copyright (C)2005-2018 Haxe Foundation
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- *
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- * Permission is hereby granted, free of charge, to any person obtaining a
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- * copy of this software and associated documentation files (the "Software"),
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- * to deal in the Software without restriction, including without limitation
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- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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- * and/or sell copies of the Software, and to permit persons to whom the
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- * Software is furnished to do so, subject to the following conditions:
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- *
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- * The above copyright notice and this permission notice shall be included in
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- * all copies or substantial portions of the Software.
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- *
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- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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- * DEALINGS IN THE SOFTWARE.
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- */
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-package js.html.compat;
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-
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-#if !nodejs
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-import haxe.io.Error;
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-
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-@:ifFeature("js.html.DataView.*")
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-@:access(js.html.compat.ArrayBuffer)
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-class DataView {
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-
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- var buf : ArrayBuffer;
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- var offset : Int;
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- var length : Int;
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-
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- public var byteLength(default,null):Int;
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- public var byteOffset(default,null):Int;
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- public var buffer(default,null):ArrayBuffer;
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-
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- public function new( buffer : ArrayBuffer, ?byteOffset : Int, ?byteLength : Int ) : Void {
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- this.buf = buffer;
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- this.offset = byteOffset == null ? 0 : byteOffset;
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- this.length = byteLength == null ? buffer.byteLength - this.offset : byteLength;
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- if( offset < 0 || length < 0 || offset+length > buffer.byteLength )
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- throw OutsideBounds;
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- this.byteLength = length;
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- this.byteOffset = offset;
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- this.buffer = buf;
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- }
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-
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- public function getInt8( byteOffset : Int ) : Int {
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- var v = buf.a[offset + byteOffset];
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- return v >= 0x80 ? v - 256 : v;
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- }
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-
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- public function getUint8( byteOffset : Int ) : Int {
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- return buf.a[offset + byteOffset];
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- }
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-
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- public function getInt16( byteOffset : Int, ?littleEndian : Bool ) : Int {
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- var v = getUint16(byteOffset, littleEndian);
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- return v >= 0x8000 ? v - 65536 : v;
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- }
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-
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- public function getUint16( byteOffset : Int, ?littleEndian : Bool ) : Int {
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- return littleEndian ? buf.a[offset + byteOffset] | (buf.a[offset + byteOffset + 1] << 8) : (buf.a[offset + byteOffset]<<8) | buf.a[offset + byteOffset + 1];
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- }
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-
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- public function getInt32( byteOffset : Int, ?littleEndian : Bool ) : Int {
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- var p = offset + byteOffset;
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- var a = buf.a[p++];
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- var b = buf.a[p++];
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- var c = buf.a[p++];
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- var d = buf.a[p++];
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- return littleEndian ? a | (b<<8) | (c<<16) | (d<<24) : d | (c << 8) | (b << 16) | (a << 24);
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- }
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-
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- public function getUint32( byteOffset : Int, ?littleEndian : Bool ) : Int {
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- var v = getInt32(byteOffset, littleEndian);
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- return v < 0 ? cast (v + 4294967296.) : v;
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- }
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-
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- public function getFloat32( byteOffset : Int, ?littleEndian : Bool ) : Float {
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- return @:privateAccess haxe.io.FPHelper._i32ToFloat(getInt32(byteOffset, littleEndian));
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- }
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-
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- public function getFloat64( byteOffset : Int, ?littleEndian : Bool ) : Float {
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- var a = getInt32(byteOffset, littleEndian);
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- var b = getInt32(byteOffset + 4, littleEndian);
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- return @:privateAccess haxe.io.FPHelper._i64ToDouble(littleEndian ? a : b, littleEndian ? b : a);
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- }
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-
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- public function setInt8( byteOffset : Int, value : Int ) : Void {
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- buf.a[byteOffset + offset] = (value < 0) ? (value + 128) & 0xFF : value & 0xFF;
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- }
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-
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- public function setUint8( byteOffset : Int, value : Int ) : Void {
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- buf.a[byteOffset + offset] = value & 0xFF;
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- }
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-
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- public function setInt16( byteOffset : Int, value : Int, ?littleEndian : Bool ) : Void {
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- setUint16(byteOffset, value < 0 ? value + 65536 : value, littleEndian);
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- }
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-
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- public function setUint16( byteOffset : Int, value : Int, ?littleEndian : Bool ) : Void {
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- var p = byteOffset + offset;
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- if( littleEndian ) {
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- buf.a[p++] = value&0xFF;
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- buf.a[p] = (value>>8) & 0xFF;
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- } else {
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- buf.a[p++] = (value>>8) & 0xFF;
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- buf.a[p] = value&0xFF;
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- }
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- }
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-
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- public function setInt32( byteOffset : Int, value : Int, ?littleEndian : Bool ) : Void {
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- setUint32(byteOffset, value, littleEndian);
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- }
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-
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- public function setUint32( byteOffset : Int, value : Int, ?littleEndian : Bool ) : Void {
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- var p = byteOffset + offset;
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- if( littleEndian ) {
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- buf.a[p++] = value & 0xFF;
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- buf.a[p++] = (value>>8) & 0xFF;
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- buf.a[p++] = (value>>16) & 0xFF;
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- buf.a[p++] = value >>> 24;
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- } else {
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- buf.a[p++] = value >>> 24;
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- buf.a[p++] = (value>>16) & 0xFF;
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- buf.a[p++] = (value>>8) & 0xFF;
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- buf.a[p++] = value & 0xFF;
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- }
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- }
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-
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- public function setFloat32( byteOffset : Int, value : Float, ?littleEndian : Bool ) : Void {
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- setUint32(byteOffset, @:privateAccess haxe.io.FPHelper._floatToI32(value), littleEndian);
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- }
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-
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- public function setFloat64( byteOffset : Int, value : Float, ?littleEndian : Bool ) : Void {
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- var i64 = @:privateAccess haxe.io.FPHelper._doubleToI64(value);
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- if( littleEndian ) {
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- setUint32(byteOffset, i64.low , true);
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- setUint32(byteOffset + 4, i64.high, true);
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- } else {
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- setUint32(byteOffset, i64.high, false);
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- setUint32(byteOffset + 4, i64.low , false);
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- }
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- }
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-
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- static function __init__() {
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- untyped __js__("var DataView = {0} || {1}", js.Lib.global.DataView, js.html.compat.DataView);
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- }
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-
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-}
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-#end
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