From 5650b9a43736f191dd13b4ec5fdc11f18a9e96d6 Mon Sep 17 00:00:00 2001 From: dumpfmprod Date: Fri, 26 Mar 2010 18:38:20 -0400 Subject: Added webcam effects --- webcam/com/adobe/images/PNGEncoder.as | 286 +++++++++++++++++----------------- 1 file changed, 143 insertions(+), 143 deletions(-) (limited to 'webcam/com/adobe/images/PNGEncoder.as') diff --git a/webcam/com/adobe/images/PNGEncoder.as b/webcam/com/adobe/images/PNGEncoder.as index bb86444..f40e575 100644 --- a/webcam/com/adobe/images/PNGEncoder.as +++ b/webcam/com/adobe/images/PNGEncoder.as @@ -1,144 +1,144 @@ -/* - Adobe Systems Incorporated(r) Source Code License Agreement - Copyright(c) 2005 Adobe Systems Incorporated. All rights reserved. - - Please read this Source Code License Agreement carefully before using - the source code. - - Adobe Systems Incorporated grants to you a perpetual, worldwide, non-exclusive, - no-charge, royalty-free, irrevocable copyright license, to reproduce, - prepare derivative works of, publicly display, publicly perform, and - distribute this source code and such derivative works in source or - object code form without any attribution requirements. - - The name "Adobe Systems Incorporated" must not be used to endorse or promote products - derived from the source code without prior written permission. - - You agree to indemnify, hold harmless and defend Adobe Systems Incorporated from and - against any loss, damage, claims or lawsuits, including attorney's - fees that arise or result from your use or distribution of the source - code. - - THIS SOURCE CODE IS PROVIDED "AS IS" AND "WITH ALL FAULTS", WITHOUT - ANY TECHNICAL SUPPORT OR ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, - BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ALSO, THERE IS NO WARRANTY OF - NON-INFRINGEMENT, TITLE OR QUIET ENJOYMENT. IN NO EVENT SHALL MACROMEDIA - OR ITS SUPPLIERS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; - OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR - OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOURCE CODE, EVEN IF - ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -*/ -package com.adobe.images -{ - import flash.geom.*; - import flash.display.Bitmap; - import flash.display.BitmapData; - import flash.utils.ByteArray; - - /** - * Class that converts BitmapData into a valid PNG - */ - public class PNGEncoder - { - /** - * Created a PNG image from the specified BitmapData - * - * @param image The BitmapData that will be converted into the PNG format. - * @return a ByteArray representing the PNG encoded image data. - * @langversion ActionScript 3.0 - * @playerversion Flash 9.0 - * @tiptext - */ - public static function encode(img:BitmapData):ByteArray { - // Create output byte array - var png:ByteArray = new ByteArray(); - // Write PNG signature - png.writeUnsignedInt(0x89504e47); - png.writeUnsignedInt(0x0D0A1A0A); - // Build IHDR chunk - var IHDR:ByteArray = new ByteArray(); - IHDR.writeInt(img.width); - IHDR.writeInt(img.height); - IHDR.writeUnsignedInt(0x08060000); // 32bit RGBA - IHDR.writeByte(0); - writeChunk(png,0x49484452,IHDR); - // Build IDAT chunk - var IDAT:ByteArray= new ByteArray(); - for(var i:int=0;i < img.height;i++) { - // no filter - IDAT.writeByte(0); - var p:uint; - var j:int; - if ( !img.transparent ) { - for(j=0;j < img.width;j++) { - p = img.getPixel(j,i); - IDAT.writeUnsignedInt( - uint(((p&0xFFFFFF) << 8)|0xFF)); - } - } else { - for(j=0;j < img.width;j++) { - p = img.getPixel32(j,i); - IDAT.writeUnsignedInt( - uint(((p&0xFFFFFF) << 8)| - (p>>>24))); - } - } - } - IDAT.compress(); - writeChunk(png,0x49444154,IDAT); - // Build IEND chunk - writeChunk(png,0x49454E44,null); - // return PNG - return png; - } - - private static var crcTable:Array; - private static var crcTableComputed:Boolean = false; - - private static function writeChunk(png:ByteArray, - type:uint, data:ByteArray):void { - if (!crcTableComputed) { - crcTableComputed = true; - crcTable = []; - var c:uint; - for (var n:uint = 0; n < 256; n++) { - c = n; - for (var k:uint = 0; k < 8; k++) { - if (c & 1) { - c = uint(uint(0xedb88320) ^ - uint(c >>> 1)); - } else { - c = uint(c >>> 1); - } - } - crcTable[n] = c; - } - } - var len:uint = 0; - if (data != null) { - len = data.length; - } - png.writeUnsignedInt(len); - var p:uint = png.position; - png.writeUnsignedInt(type); - if ( data != null ) { - png.writeBytes(data); - } - var e:uint = png.position; - png.position = p; - c = 0xffffffff; - for (var i:int = 0; i < (e-p); i++) { - c = uint(crcTable[ - (c ^ png.readUnsignedByte()) & - uint(0xff)] ^ uint(c >>> 8)); - } - c = uint(c^uint(0xffffffff)); - png.position = e; - png.writeUnsignedInt(c); - } - } +/* + Adobe Systems Incorporated(r) Source Code License Agreement + Copyright(c) 2005 Adobe Systems Incorporated. All rights reserved. + + Please read this Source Code License Agreement carefully before using + the source code. + + Adobe Systems Incorporated grants to you a perpetual, worldwide, non-exclusive, + no-charge, royalty-free, irrevocable copyright license, to reproduce, + prepare derivative works of, publicly display, publicly perform, and + distribute this source code and such derivative works in source or + object code form without any attribution requirements. + + The name "Adobe Systems Incorporated" must not be used to endorse or promote products + derived from the source code without prior written permission. + + You agree to indemnify, hold harmless and defend Adobe Systems Incorporated from and + against any loss, damage, claims or lawsuits, including attorney's + fees that arise or result from your use or distribution of the source + code. + + THIS SOURCE CODE IS PROVIDED "AS IS" AND "WITH ALL FAULTS", WITHOUT + ANY TECHNICAL SUPPORT OR ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, + BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ALSO, THERE IS NO WARRANTY OF + NON-INFRINGEMENT, TITLE OR QUIET ENJOYMENT. IN NO EVENT SHALL MACROMEDIA + OR ITS SUPPLIERS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOURCE CODE, EVEN IF + ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ +package com.adobe.images +{ + import flash.geom.*; + import flash.display.Bitmap; + import flash.display.BitmapData; + import flash.utils.ByteArray; + + /** + * Class that converts BitmapData into a valid PNG + */ + public class PNGEncoder + { + /** + * Created a PNG image from the specified BitmapData + * + * @param image The BitmapData that will be converted into the PNG format. + * @return a ByteArray representing the PNG encoded image data. + * @langversion ActionScript 3.0 + * @playerversion Flash 9.0 + * @tiptext + */ + public static function encode(img:BitmapData):ByteArray { + // Create output byte array + var png:ByteArray = new ByteArray(); + // Write PNG signature + png.writeUnsignedInt(0x89504e47); + png.writeUnsignedInt(0x0D0A1A0A); + // Build IHDR chunk + var IHDR:ByteArray = new ByteArray(); + IHDR.writeInt(img.width); + IHDR.writeInt(img.height); + IHDR.writeUnsignedInt(0x08060000); // 32bit RGBA + IHDR.writeByte(0); + writeChunk(png,0x49484452,IHDR); + // Build IDAT chunk + var IDAT:ByteArray= new ByteArray(); + for(var i:int=0;i < img.height;i++) { + // no filter + IDAT.writeByte(0); + var p:uint; + var j:int; + if ( !img.transparent ) { + for(j=0;j < img.width;j++) { + p = img.getPixel(j,i); + IDAT.writeUnsignedInt( + uint(((p&0xFFFFFF) << 8)|0xFF)); + } + } else { + for(j=0;j < img.width;j++) { + p = img.getPixel32(j,i); + IDAT.writeUnsignedInt( + uint(((p&0xFFFFFF) << 8)| + (p>>>24))); + } + } + } + IDAT.compress(); + writeChunk(png,0x49444154,IDAT); + // Build IEND chunk + writeChunk(png,0x49454E44,null); + // return PNG + return png; + } + + private static var crcTable:Array; + private static var crcTableComputed:Boolean = false; + + private static function writeChunk(png:ByteArray, + type:uint, data:ByteArray):void { + if (!crcTableComputed) { + crcTableComputed = true; + crcTable = []; + var c:uint; + for (var n:uint = 0; n < 256; n++) { + c = n; + for (var k:uint = 0; k < 8; k++) { + if (c & 1) { + c = uint(uint(0xedb88320) ^ + uint(c >>> 1)); + } else { + c = uint(c >>> 1); + } + } + crcTable[n] = c; + } + } + var len:uint = 0; + if (data != null) { + len = data.length; + } + png.writeUnsignedInt(len); + var p:uint = png.position; + png.writeUnsignedInt(type); + if ( data != null ) { + png.writeBytes(data); + } + var e:uint = png.position; + png.position = p; + c = 0xffffffff; + for (var i:int = 0; i < (e-p); i++) { + c = uint(crcTable[ + (c ^ png.readUnsignedByte()) & + uint(0xff)] ^ uint(c >>> 8)); + } + c = uint(c^uint(0xffffffff)); + png.position = e; + png.writeUnsignedInt(c); + } + } } \ No newline at end of file -- cgit v1.2.3-70-g09d2