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BitmapAssetMaterial.as
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Text File
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2007-07-18
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4KB
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123 lines
/*
* PAPER ON ERVIS NPAPER ISION PE IS ON PERVI IO APER SI PA
* AP VI ONPA RV IO PA SI PA ER SI NP PE ON AP VI ION AP
* PERVI ON PE VISIO APER IONPA RV IO PA RVIS NP PE IS ONPAPE
* ER NPAPER IS PE ON PE ISIO AP IO PA ER SI NP PER
* RV PA RV SI ERVISI NP ER IO PE VISIO AP VISI PA RV3D
* ______________________________________________________________________
* papervision3d.org � blog.papervision3d.org � osflash.org/papervision3d
*/
/*
* Copyright 2006 (c) Carlos Ulloa Matesanz, noventaynueve.com.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
// __________________________________________________________________________ BITMAP ASSET MATERIAL
package org.papervision3d.materials
{
import flash.display.BitmapData;
import flash.utils.describeType;
import flash.utils.getDefinitionByName;
/**
* The BitmapAssetMaterial class creates a texture from a Bitmap library symbol.
*
* Materials collects data about how objects appear when rendered.
*
*/
public class BitmapAssetMaterial extends BitmapMaterial
{
// ______________________________________________________________________ NEW
/**
* The BitmapAssetMaterial class creates a texture from a Bitmap library asset.
*
* @param id The linkage name of the Bitmap symbol in the library.
* @param initObject [optional] - An object that contains additional properties with which to populate the newly created material.
*/
public function BitmapAssetMaterial( id:String, initObject:Object=null )
{
super( id, initObject );
}
// ______________________________________________________________________ CREATE BITMAP
/**
* [internal-use]
*
* @param asset
* @return
*/
protected override function createBitmap( asset:* ):BitmapData
{
// Remove previous bitmap
if( this._texture != asset )
{
_count[this._texture]--;
var prevBitmap:BitmapData = _library[this._texture];
if( prevBitmap && _count[this._texture] == 0 )
prevBitmap.dispose();
}
// Retrieve from library or...
var bitmapOk :BitmapData;
var bitmap :BitmapData = _library[asset];
// ...loadBitmap
if( ! bitmap )
{
var BitmapAsset:Class = getDefinitionByName( asset ) as Class;
var description:XML = describeType( BitmapAsset );
// Check if Flash 9 Alpha
if( description..constructor.length() == 0 )
bitmap = new BitmapAsset() as BitmapData;
else
bitmap = new BitmapAsset( 0, 0 ) as BitmapData;
bitmapOk = correctBitmap( bitmap, true );
_library[asset] = bitmapOk;
_count[asset] = 0;
}
else
{
bitmapOk = bitmap;
_count[asset]++;
}
return bitmapOk;
}
static private var _library :Object = new Object();
static private var _count :Object = new Object();
}
}