├── dev
├── 1.gif
├── 1.png
└── index.html
├── src
├── 1.gif
├── 1.png
├── css
│ └── _fws
│ │ └── _imagesData.scss
├── lib
│ ├── _getExeName.es6
│ ├── _omggif.es6
│ └── _upng.es6
├── demo.es6
├── index.html
└── PixiApngAndGif.es6
├── dist
├── 1.gif
├── 1.png
├── index.html
└── PixiApngAndGif.js
├── .gitignore
├── yarn.lock
├── package.json
├── fws_config.js
└── README.md
/dev/1.gif:
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https://raw.githubusercontent.com/sbfkcel/pixi-apngAndGif/HEAD/dev/1.gif
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/dev/1.png:
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https://raw.githubusercontent.com/sbfkcel/pixi-apngAndGif/HEAD/dev/1.png
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/src/1.gif:
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https://raw.githubusercontent.com/sbfkcel/pixi-apngAndGif/HEAD/src/1.gif
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/src/1.png:
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https://raw.githubusercontent.com/sbfkcel/pixi-apngAndGif/HEAD/src/1.png
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/dist/1.gif:
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https://raw.githubusercontent.com/sbfkcel/pixi-apngAndGif/HEAD/dist/1.gif
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/dist/1.png:
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https://raw.githubusercontent.com/sbfkcel/pixi-apngAndGif/HEAD/dist/1.png
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/.gitignore:
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1 | /node_modules/
2 | /.vscode/
3 | .DS_Store
4 | .psd
5 | *.DS_Store
6 | *.psd
7 | project.config.json
8 |
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/src/css/_fws/_imagesData.scss:
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1 | @charset "utf-8";
2 | //Updated by FWS. Tue Mar 10 2020 09:17:25 GMT+0800 (GMT+08:00)
3 | $_imagesData:()
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/src/lib/_getExeName.es6:
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1 | export default (filePath)=>{
2 | let aList = filePath.split('.');
3 | return aList[aList.length - 1];
4 | };
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/yarn.lock:
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1 | # THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
2 | # yarn lockfile v1
3 |
4 |
5 | pako@^1.0.6:
6 | version "1.0.11"
7 | resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.11.tgz#6c9599d340d54dfd3946380252a35705a6b992bf"
8 | integrity sha512-4hLB8Py4zZce5s4yd9XzopqwVv/yGNhV1Bl8NTmCq1763HeK2+EwVTv+leGeL13Dnh2wfbqowVPXCIO0z4taYw==
9 |
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/package.json:
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1 | {
2 | "name": "pixi-apngandgif",
3 | "version": "1.0.2",
4 | "description": "Let pixi.js support apng, gif images",
5 | "main": "./dist/PixiApngAndGif.js",
6 | "scripts": {
7 | "test": "echo \"Error: no test specified\" && exit 1"
8 | },
9 | "repository": {
10 | "type": "git",
11 | "url": "git+https://github.com/sbfkcel/pixi-apngAndGif.git"
12 | },
13 | "keywords": [
14 | "pixi",
15 | "apng",
16 | "png",
17 | "gif",
18 | "canvas"
19 | ],
20 | "author": "sbfkcel@163.com",
21 | "license": "MIT",
22 | "bugs": {
23 | "url": "https://github.com/sbfkcel/pixi-apngAndGif/issues"
24 | },
25 | "homepage": "https://github.com/sbfkcel/pixi-apngAndGif#readme",
26 | "dependencies": {
27 | "pako": "^1.0.6"
28 | }
29 | }
30 |
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/fws_config.js:
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1 | module.exports = {
2 | "author": "FWS",
3 | "mail": "china1099@qq.com",
4 | "projectName": "pixi-apngAndGi",
5 | "template": "default",
6 | "createTime": 1538119743322,
7 | "distReplace": {
8 | "*": [
9 | {
10 | "find": "feutil.localstatic.com",
11 | "replace": "pic.my4399.com/re/cms/feUtil"
12 | },
13 | {
14 | "find": "$$localhost/staticfile",
15 | "replace": "pic.my4399.com/re/cms/feUtil"
16 | }
17 | ]
18 | },
19 | "srcSync": {
20 | "targetPath": "",
21 | "fileType": "*"
22 | },
23 | "devSync": {
24 | "targetPath": "",
25 | "fileType": "*"
26 | },
27 | "distSync": {
28 | "targetPath": "",
29 | "fileType": "*"
30 | }
31 | };
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/src/demo.es6:
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1 | import $apngAndGif from './PixiApngAndGif'
2 |
3 | const app = new PIXI.Application();
4 |
5 | const loader = PIXI.Loader.shared,
6 | title = document.title,
7 | loadOption = {
8 | loadType: PIXI.LoaderResource.LOAD_TYPE.XHR,
9 | xhrType: PIXI.LoaderResource.XHR_RESPONSE_TYPE.BUFFER,
10 | crossOrigin:''
11 | },
12 | imgs = {
13 | gif:'http://isparta.github.io/compare/image/dongtai/gif/1.gif',
14 | apng:'http://isparta.github.io/compare/image/dongtai/apng/1.png'
15 | // gif:'./1.gif',
16 | // apng:'./1.png'
17 | };
18 |
19 |
20 | loader.add(imgs.gif,loadOption);
21 | loader.add(imgs.apng,loadOption);
22 |
23 | loader.on('progress',(loader,resoure)=>{
24 | document.title = Math.round(loader.progress);
25 | }).load((progress,resources)=>{
26 | document.title = title;
27 |
28 | window.gif = new $apngAndGif(imgs.gif,resources);
29 | window.apng = new $apngAndGif(imgs.apng,resources);
30 |
31 | let gifSprite = window.gif.sprite,
32 | apngSprite = window.apng.sprite;
33 |
34 | gifSprite.x = 100;
35 | apngSprite.x = 450;
36 |
37 | gifSprite.y = 160;
38 | apngSprite.y = 160;
39 |
40 | app.stage.addChild(gifSprite);
41 | app.stage.addChild(apngSprite);
42 | });
43 |
44 | document.body.appendChild(app.view);
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/dev/index.html:
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1 |
2 |
3 |
4 |
5 |
6 |
7 | pixi-apngAndGif demo
8 |
9 |
10 | gif：
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 | apng：
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
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/src/index.html:
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1 |
2 |
3 |
4 |
5 |
6 |
7 | pixi-apngAndGif demo
8 |
9 |
10 | gif：
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 | apng：
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
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/dist/index.html:
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1 |
2 |
3 |
4 |
5 |
6 |
7 | pixi-apngAndGif demo
8 |
9 |
10 |
11 | gif：
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 | apng：
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
33 |
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/README.md:
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1 | # Pixi-apngAndGif
2 |
3 | Let Pixi.js support apng, gif images. And allow control of its operation.
4 |
5 | ## DEMO
6 |
7 | - Global [**Pixi-apngAndGif.js Use the demo**](http://jsbin.com/nodeto/edit?html,js,output)
8 | - 中国大陆 [**Pixi-apngAndGif.js Use the demo**](https://jsrun.net/yXhKp)
9 |
10 | # USE
11 |
12 | ### ES6
13 |
14 | ```bash
15 | # Support pixi4.0
16 | npm install pixi-apngandgif@1.0.0
17 |
18 | # Support pixi5.0+
19 | npm install pixi-apngandgif
20 | ```
21 |
22 | ```javascript
23 | import PixiApngAndGif from 'pixi-apngandgif'
24 |
25 | const app = new PIXI.Application();
26 | const loader = PIXI.Loader.shared,
27 | loadOption = {
28 | loadType: PIXI.LoaderResource.LOAD_TYPE.XHR,
29 | xhrType: PIXI.LoaderResource.XHR_RESPONSE_TYPE.BUFFER,
30 | crossOrigin:''
31 | },
32 | imgs = {
33 | gif:'http://isparta.github.io/compare/image/dongtai/gif/1.gif',
34 | apng:'http://isparta.github.io/compare/image/dongtai/apng/1.png'
35 | };
36 |
37 | loader.add(imgs.gif,loadOption);
38 | loader.add(imgs.apng,loadOption);
39 | loader.load((progress,resources)=>{
40 | window.gif = new PixiApngAndGif(imgs.gif,resources);
41 | window.apng = new PixiApngAndGif(imgs.apng,resources);
42 |
43 | let gifSprite = window.gif.sprite,
44 | apngSprite = window.apng.sprite;
45 |
46 | gifSprite.x = 100;
47 | apngSprite.x = 450;
48 |
49 | gifSprite.y = 160;
50 | apngSprite.y = 160;
51 |
52 | app.stage.addChild(gifSprite);
53 | app.stage.addChild(apngSprite);
54 | });
55 |
56 | document.body.appendChild(app.view);
57 | ```
58 |
59 |
60 | ### Browser
61 |
62 | ```html
63 |
64 |
65 | ```
66 |
67 | ### Application code
68 |
69 | ```javascript
70 | const app = new PIXI.Application();
71 | const loader = PIXI.Loader.shared,
72 | loadOption = {
73 | loadType: PIXI.LoaderResource.LOAD_TYPE.XHR,
74 | xhrType: PIXI.LoaderResource.XHR_RESPONSE_TYPE.BUFFER,
75 | crossOrigin:''
76 | },
77 | imgs = {
78 | gif:'https://isparta.github.io/compare/image/dongtai/gif/1.gif',
79 | apng:'https://isparta.github.io/compare/image/dongtai/apng/1.png'
80 | };
81 |
82 | loader.add(imgs.gif,loadOption);
83 | loader.add(imgs.apng,loadOption);
84 | loader.load((progress,resources)=>{
85 | window.gif = new PixiApngAndGif(imgs.gif,resources);
86 | window.apng = new PixiApngAndGif(imgs.apng,resources);
87 |
88 | let gifSprite = window.gif.sprite,
89 | apngSprite = window.apng.sprite;
90 |
91 | gifSprite.x = 100;
92 | apngSprite.x = 450;
93 |
94 | gifSprite.y = 160;
95 | apngSprite.y = 160;
96 |
97 | app.stage.addChild(gifSprite);
98 | app.stage.addChild(apngSprite);
99 | });
100 |
101 | document.body.appendChild(app.view);
102 | ```
103 |
104 | ## API
105 |
106 | ### `.play(bout,callback)`
107 |
108 | Play animation
109 | `bout`Used to specify the number of plays
110 | `callback`Callback executed after the specified number of plays has been completed
111 |
112 | ### `.pause()`
113 |
114 | Pause animation
115 |
116 | ### `.stop()`
117 |
118 | Stop animation
119 |
120 | ### `.jumpToFrame(frame)`
121 |
122 | Jump to the specified frame
123 |
124 | ### `.getDuration()`
125 |
126 | Get the total duration of an animation single play
127 |
128 | ### `.getFramesLength()`
129 |
130 | Get the number of animation frames
131 |
132 | ### `.on(status,callback)`
133 |
134 | Used to invoke the specified method in the specified phase of the animation
135 | `status`Four states(`playing`、`played`、`pause`、`stop`)
136 | `callback`Callback, there is a parameter. The status of the current animation is recorded.
137 |
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/src/PixiApngAndGif.es6:
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1 | import $getExeName from './lib/_getExeName' // 用于获取路径扩展名
2 | import $omggif from './lib/_omggif' // gif图片编解码
3 | import $upngjs from './lib/_upng' // png图片编解码
4 |
5 | class Image{
6 | constructor(esource,resources){
7 | const _ts = this;
8 | _ts.esource = esource;
9 | _ts.resources = resources;
10 |
11 | _ts.init();
12 | }
13 | init(){
14 | const _ts = this,
15 | esource = _ts.esource,
16 | resources = _ts.resources;
17 |
18 | _ts.temp = { // 临时数据
19 | //loop:0, // 保存当前需要播放的次数
20 | //tickerIsAdd:undefined // 保存轮循执行器是否添加
21 | events:{} // 用于存放事件
22 | };
23 |
24 | // 属性
25 | _ts.__attr = {
26 | autoPlay:true, // 默认自动播放
27 | loop:0 // 默认无限次播放
28 | };
29 |
30 | // 方法
31 | _ts.__method = {
32 | play:_ts.play // 播放方法
33 | };
34 |
35 | // 状态
36 | _ts.__status = {
37 | status:'init', // 状态，默认初始化（init、playing、played、pause、stop）
38 | frame:0, // 当前帧数
39 | loops:0, // 连续循环播放次数，停止播放会清0
40 | time:0
41 | };
42 |
43 | // 循环执行器
44 | _ts.ticker = new PIXI.Ticker();
45 | _ts.ticker.stop();
46 |
47 | // 精灵
48 | _ts.sprite = this.createSprite(esource,resources);
49 | }
50 |
51 | // 播放
52 | play(loop,callback){
53 | const _ts = this;
54 |
55 | // 没有纹理材质时抛出错误
56 | if(!_ts.textures.length){
57 | throw new Error('没有可用的textures');
58 | };
59 |
60 | // 纹理材质只有一帧时不往下执行
61 | if(_ts.textures.length === 1){
62 | return;
63 | };
64 |
65 | let status = _ts.__status,
66 | attr = _ts.__attr,
67 | time = 0;
68 |
69 | // 当状态是停止的时候，将播放次数清0
70 | if(status.status === 'stop'){
71 | status.loops = 0;
72 | };
73 |
74 | // 设置循环参数
75 | loop = typeof loop === 'number' ? loop : attr.loop;
76 | _ts.temp.loop = loop;
77 | attr.loop = loop;
78 |
79 | // 为轮循执行器添加一个操作
80 | if(!_ts.temp.tickerIsAdd){
81 | _ts.ticker.add(deltaTime => {
82 | let elapsed = PIXI.Ticker.shared.elapsedMS;
83 | time+=elapsed;
84 |
85 | // 当帧停留时间已达到间隔帧率时播放下一帧
86 | if(time > _ts.framesDelay[status.frame]){
87 | status.frame++;
88 |
89 | // 修改状态为执行中
90 | status.status = 'playing';
91 |
92 | // 当一次播放完成，将播放帧归0，并记录播放次数
93 | if(status.frame > _ts.textures.length - 1){
94 | status.frame = 0;
95 | status.loops++;
96 |
97 | // 当指定了有效的播放次数并且当前播放次数达到指定次数时，执行回调则停止播放
98 | if(_ts.temp.loop > 0 && status.loops >= _ts.temp.loop){
99 | if(typeof callback === 'function'){
100 | callback(status);
101 | };
102 | // 修改状态为执行完成并停止
103 | status.status = 'played';
104 | _ts.runEvent('played',status);
105 | _ts.stop();
106 | };
107 | };
108 |
109 | // 修改精灵纹理材质与当前的帧率相匹配
110 | _ts.sprite.texture = _ts.textures[status.frame];
111 | time = 0;
112 |
113 | _ts.runEvent('playing',status);
114 | };
115 | });
116 | _ts.temp.tickerIsAdd = true;
117 | };
118 |
119 | // 让轮循执行器开始执行
120 | _ts.ticker.start();
121 | }
122 |
123 | // 暂停
124 | pause(){
125 | const _ts = this,
126 | status = _ts.__status;
127 | _ts.ticker.stop();
128 | status.status = 'pause';
129 | _ts.runEvent('pause',status);
130 | }
131 |
132 | // 停止播放并跳至第一帧
133 | stop(){
134 | const _ts = this,
135 | status = _ts.__status;
136 | _ts.ticker.stop();
137 | status.status = 'stop';
138 | _ts.runEvent('stop',status);
139 | }
140 |
141 | // 跳至指定的帧数
142 | jumpToFrame(frameIndex){
143 | const _ts = this,
144 | textures = _ts.textures;
145 |
146 | // 没有纹理材质时抛出错误
147 | if(!textures.length){
148 | throw new Error('没有可用的textures');
149 | };
150 |
151 | let status = _ts.__status;
152 |
153 | frameIndex = frameIndex < 0 ? 0 : frameIndex > textures.length - 1 ? textures.length - 1 : frameIndex;
154 |
155 | if(typeof frameIndex === 'number'){
156 | _ts.sprite.texture = textures[frameIndex];
157 | status.frame = frameIndex;
158 | };
159 | }
160 |
161 | // 获取总播放时长
162 | getDuration(){
163 | const _ts = this,
164 | framesDelay = _ts.framesDelay;
165 |
166 | // 没有帧时间时抛出错误
167 | if(!framesDelay.length){
168 | throw new Error('未找到图片帧时间');
169 | };
170 |
171 | let time = 0;
172 |
173 | for(let i=0,len=framesDelay.length; i{
232 | let gifDecodeData = _ts.gifResourceToTextures(resources[imgSrc]);
233 | _ts.textures = gifDecodeData.textures;
234 | _ts.framesDelay = gifDecodeData.delayTimes;
235 | _ts.play();
236 |
237 | // 返回精灵并将纹理材质设置为第一帧图像
238 | return new Sprite(_ts.textures[0]);
239 | },
240 | 'png':()=>{
241 | let pngDecodeData = _ts.apngResourceToTextures(resources[imgSrc]);
242 | _ts.textures = pngDecodeData.textures;
243 | _ts.framesDelay = pngDecodeData.delayTimes;
244 | _ts.play();
245 |
246 | // 返回精灵并将纹理材质设置为第一帧图像
247 | return new Sprite(_ts.textures[0]);
248 | },
249 | 'other':()=>{
250 | _ts.textures = [resources[imgSrc].texture];
251 | return new Sprite(resources[imgSrc].texture);
252 | }
253 | };
254 | return funs[exeName]();
255 | }
256 |
257 | /**
258 | * 将apng缓存资源转换为纹理材质
259 | * @param {object} resource 缓存资源
260 | * @return {object} 返回一个对象，包括apng的每帧时长及解码出来材质
261 | */
262 | apngResourceToTextures(resource){
263 | const _ts = this;
264 |
265 | let obj = {
266 | delayTimes:[],
267 | textures:[]
268 | },
269 | buf = new Uint8Array(resource.data),
270 | upng = $upngjs.decode(buf),
271 | rgba = $upngjs.toRGBA8(upng),
272 | pngWidth = upng.width,
273 | pngHeight = upng.height,
274 | pngFramesLen = upng.frames.length,
275 |
276 | spriteSheet,
277 | canvas,
278 | ctx,
279 | imageData;
280 |
281 |
282 |
283 | // 记录下每帧的时间
284 | upng.frames.forEach((item,index)=>{
285 | obj.delayTimes.push(item.delay);
286 | });
287 |
288 | for(let i=0,len=rgba.length; i, 2013.
2 | //
3 | // https://github.com/deanm/omggif
4 | //
5 | // Permission is hereby granted, free of charge, to any person obtaining a copy
6 | // of this software and associated documentation files (the "Software"), to
7 | // deal in the Software without restriction, including without limitation the
8 | // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
9 | // sell copies of the Software, and to permit persons to whom the Software is
10 | // furnished to do so, subject to the following conditions:
11 | //
12 | // The above copyright notice and this permission notice shall be included in
13 | // all copies or substantial portions of the Software.
14 | //
15 | // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 | // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 | // IN THE SOFTWARE.
22 | //
23 | // omggif is a JavaScript implementation of a GIF 89a encoder and decoder,
24 | // including animation and compression. It does not rely on any specific
25 | // underlying system, so should run in the browser, Node, or Plask.
26 |
27 | "use strict";
28 |
29 | function GifReader(buf) {
30 | var p = 0;
31 |
32 | // - Header (GIF87a or GIF89a).
33 | if (buf[p++] !== 0x47 || buf[p++] !== 0x49 || buf[p++] !== 0x46 ||
34 | buf[p++] !== 0x38 || (buf[p++] + 1 & 0xfd) !== 0x38 || buf[p++] !== 0x61) {
35 | throw new Error("Invalid GIF 87a/89a header.");
36 | }
37 |
38 | // - Logical Screen Descriptor.
39 | var width = buf[p++] | buf[p++] << 8;
40 | var height = buf[p++] | buf[p++] << 8;
41 | var pf0 = buf[p++]; // .
42 | var global_palette_flag = pf0 >> 7;
43 | var num_global_colors_pow2 = pf0 & 0x7;
44 | var num_global_colors = 1 << (num_global_colors_pow2 + 1);
45 | var background = buf[p++];
46 | buf[p++]; // Pixel aspect ratio (unused?).
47 |
48 | var global_palette_offset = null;
49 | var global_palette_size = null;
50 |
51 | if (global_palette_flag) {
52 | global_palette_offset = p;
53 | global_palette_size = num_global_colors;
54 | p += num_global_colors * 3; // Seek past palette.
55 | }
56 |
57 | var no_eof = true;
58 |
59 | var frames = [];
60 |
61 | var delay = 0;
62 | var transparent_index = null;
63 | var disposal = 0; // 0 - No disposal specified.
64 | var loop_count = null;
65 |
66 | this.width = width;
67 | this.height = height;
68 |
69 | while (no_eof && p < buf.length) {
70 | switch (buf[p++]) {
71 | case 0x21: // Graphics Control Extension Block
72 | switch (buf[p++]) {
73 | case 0xff: // Application specific block
74 | // Try if it's a Netscape block (with animation loop counter).
75 | if (buf[p] !== 0x0b || // 21 FF already read, check block size.
76 | // NETSCAPE2.0
77 | buf[p + 1] == 0x4e && buf[p + 2] == 0x45 && buf[p + 3] == 0x54 &&
78 | buf[p + 4] == 0x53 && buf[p + 5] == 0x43 && buf[p + 6] == 0x41 &&
79 | buf[p + 7] == 0x50 && buf[p + 8] == 0x45 && buf[p + 9] == 0x32 &&
80 | buf[p + 10] == 0x2e && buf[p + 11] == 0x30 &&
81 | // Sub-block
82 | buf[p + 12] == 0x03 && buf[p + 13] == 0x01 && buf[p + 16] == 0) {
83 | p += 14;
84 | loop_count = buf[p++] | buf[p++] << 8;
85 | p++; // Skip terminator.
86 | } else { // We don't know what it is, just try to get past it.
87 | p += 12;
88 | while (true) { // Seek through subblocks.
89 | var block_size = buf[p++];
90 | // Bad block size (ex: undefined from an out of bounds read).
91 | if (!(block_size >= 0)) throw Error("Invalid block size");
92 | if (block_size === 0) break; // 0 size is terminator
93 | p += block_size;
94 | }
95 | }
96 | break;
97 |
98 | case 0xf9: // Graphics Control Extension
99 | if (buf[p++] !== 0x4 || buf[p + 4] !== 0)
100 | throw new Error("Invalid graphics extension block.");
101 | var pf1 = buf[p++];
102 | delay = buf[p++] | buf[p++] << 8;
103 | transparent_index = buf[p++];
104 | if ((pf1 & 1) === 0) transparent_index = null;
105 | disposal = pf1 >> 2 & 0x7;
106 | p++; // Skip terminator.
107 | break;
108 |
109 | case 0xfe: // Comment Extension.
110 | while (true) { // Seek through subblocks.
111 | var block_size = buf[p++];
112 | // Bad block size (ex: undefined from an out of bounds read).
113 | if (!(block_size >= 0)) throw Error("Invalid block size");
114 | if (block_size === 0) break; // 0 size is terminator
115 | // console.log(buf.slice(p, p+block_size).toString('ascii'));
116 | p += block_size;
117 | }
118 | break;
119 |
120 | default:
121 | throw new Error(
122 | "Unknown graphic control label: 0x" + buf[p - 1].toString(16));
123 | }
124 | break;
125 |
126 | case 0x2c: // Image Descriptor.
127 | var x = buf[p++] | buf[p++] << 8;
128 | var y = buf[p++] | buf[p++] << 8;
129 | var w = buf[p++] | buf[p++] << 8;
130 | var h = buf[p++] | buf[p++] << 8;
131 | var pf2 = buf[p++];
132 | var local_palette_flag = pf2 >> 7;
133 | var interlace_flag = pf2 >> 6 & 1;
134 | var num_local_colors_pow2 = pf2 & 0x7;
135 | var num_local_colors = 1 << (num_local_colors_pow2 + 1);
136 | var palette_offset = global_palette_offset;
137 | var palette_size = global_palette_size;
138 | var has_local_palette = false;
139 | if (local_palette_flag) {
140 | var has_local_palette = true;
141 | palette_offset = p; // Override with local palette.
142 | palette_size = num_local_colors;
143 | p += num_local_colors * 3; // Seek past palette.
144 | }
145 |
146 | var data_offset = p;
147 |
148 | p++; // codesize
149 | while (true) {
150 | var block_size = buf[p++];
151 | // Bad block size (ex: undefined from an out of bounds read).
152 | if (!(block_size >= 0)) throw Error("Invalid block size");
153 | if (block_size === 0) break; // 0 size is terminator
154 | p += block_size;
155 | }
156 |
157 | frames.push({
158 | x: x,
159 | y: y,
160 | width: w,
161 | height: h,
162 | has_local_palette: has_local_palette,
163 | palette_offset: palette_offset,
164 | palette_size: palette_size,
165 | data_offset: data_offset,
166 | data_length: p - data_offset,
167 | transparent_index: transparent_index,
168 | interlaced: !!interlace_flag,
169 | delay: delay,
170 | disposal: disposal
171 | });
172 | break;
173 |
174 | case 0x3b: // Trailer Marker (end of file).
175 | no_eof = false;
176 | break;
177 |
178 | default:
179 | throw new Error("Unknown gif block: 0x" + buf[p - 1].toString(16));
180 | break;
181 | }
182 | }
183 |
184 | this.numFrames = function () {
185 | return frames.length;
186 | };
187 |
188 | this.loopCount = function () {
189 | return loop_count;
190 | };
191 |
192 | this.frameInfo = function (frame_num) {
193 | if (frame_num < 0 || frame_num >= frames.length)
194 | throw new Error("Frame index out of range.");
195 | return frames[frame_num];
196 | }
197 |
198 | this.decodeAndBlitFrameBGRA = function (frame_num, pixels) {
199 | var frame = this.frameInfo(frame_num);
200 | var num_pixels = frame.width * frame.height;
201 | var index_stream = new Uint8Array(num_pixels); // At most 8-bit indices.
202 | GifReaderLZWOutputIndexStream(
203 | buf, frame.data_offset, index_stream, num_pixels);
204 | var palette_offset = frame.palette_offset;
205 |
206 | // NOTE(deanm): It seems to be much faster to compare index to 256 than
207 | // to === null. Not sure why, but CompareStub_EQ_STRICT shows up high in
208 | // the profile, not sure if it's related to using a Uint8Array.
209 | var trans = frame.transparent_index;
210 | if (trans === null) trans = 256;
211 |
212 | // We are possibly just blitting to a portion of the entire frame.
213 | // That is a subrect within the framerect, so the additional pixels
214 | // must be skipped over after we finished a scanline.
215 | var framewidth = frame.width;
216 | var framestride = width - framewidth;
217 | var xleft = framewidth; // Number of subrect pixels left in scanline.
218 |
219 | // Output indicies of the top left and bottom right corners of the subrect.
220 | var opbeg = ((frame.y * width) + frame.x) * 4;
221 | var opend = ((frame.y + frame.height) * width + frame.x) * 4;
222 | var op = opbeg;
223 |
224 | var scanstride = framestride * 4;
225 |
226 | // Use scanstride to skip past the rows when interlacing. This is skipping
227 | // 7 rows for the first two passes, then 3 then 1.
228 | if (frame.interlaced === true) {
229 | scanstride += width * 4 * 7; // Pass 1.
230 | }
231 |
232 | var interlaceskip = 8; // Tracking the row interval in the current pass.
233 |
234 | for (var i = 0, il = index_stream.length; i < il; ++i) {
235 | var index = index_stream[i];
236 |
237 | if (xleft === 0) { // Beginning of new scan line
238 | op += scanstride;
239 | xleft = framewidth;
240 | if (op >= opend) { // Catch the wrap to switch passes when interlacing.
241 | scanstride = framestride * 4 + width * 4 * (interlaceskip - 1);
242 | // interlaceskip / 2 * 4 is interlaceskip << 1.
243 | op = opbeg + (framewidth + framestride) * (interlaceskip << 1);
244 | interlaceskip >>= 1;
245 | }
246 | }
247 |
248 | if (index === trans) {
249 | op += 4;
250 | } else {
251 | var r = buf[palette_offset + index * 3];
252 | var g = buf[palette_offset + index * 3 + 1];
253 | var b = buf[palette_offset + index * 3 + 2];
254 | pixels[op++] = b;
255 | pixels[op++] = g;
256 | pixels[op++] = r;
257 | pixels[op++] = 255;
258 | }
259 | --xleft;
260 | }
261 | };
262 |
263 | // I will go to copy and paste hell one day...
264 | this.decodeAndBlitFrameRGBA = function (frame_num, pixels) {
265 | var frame = this.frameInfo(frame_num);
266 | var num_pixels = frame.width * frame.height;
267 | var index_stream = new Uint8Array(num_pixels); // At most 8-bit indices.
268 | GifReaderLZWOutputIndexStream(
269 | buf, frame.data_offset, index_stream, num_pixels);
270 | var palette_offset = frame.palette_offset;
271 |
272 | // NOTE(deanm): It seems to be much faster to compare index to 256 than
273 | // to === null. Not sure why, but CompareStub_EQ_STRICT shows up high in
274 | // the profile, not sure if it's related to using a Uint8Array.
275 | var trans = frame.transparent_index;
276 | if (trans === null) trans = 256;
277 |
278 | // We are possibly just blitting to a portion of the entire frame.
279 | // That is a subrect within the framerect, so the additional pixels
280 | // must be skipped over after we finished a scanline.
281 | var framewidth = frame.width;
282 | var framestride = width - framewidth;
283 | var xleft = framewidth; // Number of subrect pixels left in scanline.
284 |
285 | // Output indicies of the top left and bottom right corners of the subrect.
286 | var opbeg = ((frame.y * width) + frame.x) * 4;
287 | var opend = ((frame.y + frame.height) * width + frame.x) * 4;
288 | var op = opbeg;
289 |
290 | var scanstride = framestride * 4;
291 |
292 | // Use scanstride to skip past the rows when interlacing. This is skipping
293 | // 7 rows for the first two passes, then 3 then 1.
294 | if (frame.interlaced === true) {
295 | scanstride += width * 4 * 7; // Pass 1.
296 | }
297 |
298 | var interlaceskip = 8; // Tracking the row interval in the current pass.
299 |
300 | for (var i = 0, il = index_stream.length; i < il; ++i) {
301 | var index = index_stream[i];
302 |
303 | if (xleft === 0) { // Beginning of new scan line
304 | op += scanstride;
305 | xleft = framewidth;
306 | if (op >= opend) { // Catch the wrap to switch passes when interlacing.
307 | scanstride = framestride * 4 + width * 4 * (interlaceskip - 1);
308 | // interlaceskip / 2 * 4 is interlaceskip << 1.
309 | op = opbeg + (framewidth + framestride) * (interlaceskip << 1);
310 | interlaceskip >>= 1;
311 | }
312 | }
313 |
314 | if (index === trans) {
315 | op += 4;
316 | } else {
317 | var r = buf[palette_offset + index * 3];
318 | var g = buf[palette_offset + index * 3 + 1];
319 | var b = buf[palette_offset + index * 3 + 2];
320 | pixels[op++] = r;
321 | pixels[op++] = g;
322 | pixels[op++] = b;
323 | pixels[op++] = 255;
324 | }
325 | --xleft;
326 | }
327 | };
328 | }
329 |
330 | function GifReaderLZWOutputIndexStream(code_stream, p, output, output_length) {
331 | var min_code_size = code_stream[p++];
332 |
333 | var clear_code = 1 << min_code_size;
334 | var eoi_code = clear_code + 1;
335 | var next_code = eoi_code + 1;
336 |
337 | var cur_code_size = min_code_size + 1; // Number of bits per code.
338 | // NOTE: This shares the same name as the encoder, but has a different
339 | // meaning here. Here this masks each code coming from the code stream.
340 | var code_mask = (1 << cur_code_size) - 1;
341 | var cur_shift = 0;
342 | var cur = 0;
343 |
344 | var op = 0; // Output pointer.
345 |
346 | var subblock_size = code_stream[p++];
347 |
348 | // TODO(deanm): Would using a TypedArray be any faster? At least it would
349 | // solve the fast mode / backing store uncertainty.
350 | // var code_table = Array(4096);
351 | var code_table = new Int32Array(4096); // Can be signed, we only use 20 bits.
352 |
353 | var prev_code = null; // Track code-1.
354 |
355 | while (true) {
356 | // Read up to two bytes, making sure we always 12-bits for max sized code.
357 | while (cur_shift < 16) {
358 | if (subblock_size === 0) break; // No more data to be read.
359 |
360 | cur |= code_stream[p++] << cur_shift;
361 | cur_shift += 8;
362 |
363 | if (subblock_size === 1) { // Never let it get to 0 to hold logic above.
364 | subblock_size = code_stream[p++]; // Next subblock.
365 | } else {
366 | --subblock_size;
367 | }
368 | }
369 |
370 | // TODO(deanm): We should never really get here, we should have received
371 | // and EOI.
372 | if (cur_shift < cur_code_size)
373 | break;
374 |
375 | var code = cur & code_mask;
376 | cur >>= cur_code_size;
377 | cur_shift -= cur_code_size;
378 |
379 | // TODO(deanm): Maybe should check that the first code was a clear code,
380 | // at least this is what you're supposed to do. But actually our encoder
381 | // now doesn't emit a clear code first anyway.
382 | if (code === clear_code) {
383 | // We don't actually have to clear the table. This could be a good idea
384 | // for greater error checking, but we don't really do any anyway. We
385 | // will just track it with next_code and overwrite old entries.
386 |
387 | next_code = eoi_code + 1;
388 | cur_code_size = min_code_size + 1;
389 | code_mask = (1 << cur_code_size) - 1;
390 |
391 | // Don't update prev_code ?
392 | prev_code = null;
393 | continue;
394 | } else if (code === eoi_code) {
395 | break;
396 | }
397 |
398 | // We have a similar situation as the decoder, where we want to store
399 | // variable length entries (code table entries), but we want to do in a
400 | // faster manner than an array of arrays. The code below stores sort of a
401 | // linked list within the code table, and then "chases" through it to
402 | // construct the dictionary entries. When a new entry is created, just the
403 | // last byte is stored, and the rest (prefix) of the entry is only
404 | // referenced by its table entry. Then the code chases through the
405 | // prefixes until it reaches a single byte code. We have to chase twice,
406 | // first to compute the length, and then to actually copy the data to the
407 | // output (backwards, since we know the length). The alternative would be
408 | // storing something in an intermediate stack, but that doesn't make any
409 | // more sense. I implemented an approach where it also stored the length
410 | // in the code table, although it's a bit tricky because you run out of
411 | // bits (12 + 12 + 8), but I didn't measure much improvements (the table
412 | // entries are generally not the long). Even when I created benchmarks for
413 | // very long table entries the complexity did not seem worth it.
414 | // The code table stores the prefix entry in 12 bits and then the suffix
415 | // byte in 8 bits, so each entry is 20 bits.
416 |
417 | var chase_code = code < next_code ? code : prev_code;
418 |
419 | // Chase what we will output, either {CODE} or {CODE-1}.
420 | var chase_length = 0;
421 | var chase = chase_code;
422 | while (chase > clear_code) {
423 | chase = code_table[chase] >> 8;
424 | ++chase_length;
425 | }
426 |
427 | var k = chase;
428 |
429 | var op_end = op + chase_length + (chase_code !== code ? 1 : 0);
430 | if (op_end > output_length) {
431 | console.log("Warning, gif stream longer than expected.");
432 | return;
433 | }
434 |
435 | // Already have the first byte from the chase, might as well write it fast.
436 | output[op++] = k;
437 |
438 | op += chase_length;
439 | var b = op; // Track pointer, writing backwards.
440 |
441 | if (chase_code !== code) // The case of emitting {CODE-1} + k.
442 | output[op++] = k;
443 |
444 | chase = chase_code;
445 | while (chase_length--) {
446 | chase = code_table[chase];
447 | output[--b] = chase & 0xff; // Write backwards.
448 | chase >>= 8; // Pull down to the prefix code.
449 | }
450 |
451 | if (prev_code !== null && next_code < 4096) {
452 | code_table[next_code++] = prev_code << 8 | k;
453 | // TODO(deanm): Figure out this clearing vs code growth logic better. I
454 | // have an feeling that it should just happen somewhere else, for now it
455 | // is awkward between when we grow past the max and then hit a clear code.
456 | // For now just check if we hit the max 12-bits (then a clear code should
457 | // follow, also of course encoded in 12-bits).
458 | if (next_code >= code_mask + 1 && cur_code_size < 12) {
459 | ++cur_code_size;
460 | code_mask = code_mask << 1 | 1;
461 | }
462 | }
463 |
464 | prev_code = code;
465 | }
466 |
467 | if (op !== output_length) {
468 | console.log("Warning, gif stream shorter than expected.");
469 | }
470 |
471 | return output;
472 | }
473 |
474 | export default GifReader;
--------------------------------------------------------------------------------
/src/lib/_upng.es6:
--------------------------------------------------------------------------------
1 | import pako from 'pako'
2 |
3 | var UPNG = {};
4 |
5 | if (Uint8Array && !Uint8Array.prototype.slice) {
6 | Uint8Array.prototype.slice = function (...arg) {
7 | return new Uint8Array(this).subarray(...arg);
8 | };
9 | };
10 | (function (UPNG, pako) {
11 | UPNG.toRGBA8 = function (out) {
12 | var w = out.width,
13 | h = out.height;
14 | if (out.tabs.acTL == null) return [UPNG.toRGBA8.decodeImage(out.data, w, h, out).buffer];
15 |
16 | var frms = [];
17 | if (out.frames[0].data == null) out.frames[0].data = out.data;
18 |
19 | var img, empty = new Uint8Array(w * h * 4);
20 | for (var i = 0; i < out.frames.length; i++) {
21 | var frm = out.frames[i];
22 | var fx = frm.rect.x,
23 | fy = frm.rect.y,
24 | fw = frm.rect.width,
25 | fh = frm.rect.height;
26 | var fdata = UPNG.toRGBA8.decodeImage(frm.data, fw, fh, out);
27 |
28 | if (i == 0) img = fdata;
29 | else if (frm.blend == 0) UPNG._copyTile(fdata, fw, fh, img, w, h, fx, fy, 0);
30 | else if (frm.blend == 1) UPNG._copyTile(fdata, fw, fh, img, w, h, fx, fy, 1);
31 |
32 | frms.push(img.buffer);
33 | img = img.slice(0);
34 |
35 | if (frm.dispose == 0) {} else if (frm.dispose == 1) UPNG._copyTile(empty, fw, fh, img, w, h, fx, fy, 0);
36 | else if (frm.dispose == 2) {
37 | var pi = i - 1;
38 | while (out.frames[pi].dispose == 2) pi--;
39 | img = new Uint8Array(frms[pi]).slice(0);
40 | }
41 | }
42 | return frms;
43 | }
44 | UPNG.toRGBA8.decodeImage = function (data, w, h, out) {
45 | var area = w * h,
46 | bpp = UPNG.decode._getBPP(out);
47 | var bpl = Math.ceil(w * bpp / 8); // bytes per line
48 | var bf = new Uint8Array(area * 4),
49 | bf32 = new Uint32Array(bf.buffer);
50 | var ctype = out.ctype,
51 | depth = out.depth;
52 | var rs = UPNG._bin.readUshort;
53 |
54 | //console.log(ctype, depth);
55 | if (ctype == 6) { // RGB + alpha
56 | var qarea = area << 2;
57 | if (depth == 8)
58 | for (var i = 0; i < qarea; i++) {
59 | bf[i] = data[i];
60 | /*if((i&3)==3 && data[i]!=0) bf[i]=255;*/
61 | }
62 | if (depth == 16)
63 | for (var i = 0; i < qarea; i++) {
64 | bf[i] = data[i << 1];
65 | }
66 | } else if (ctype == 2) { // RGB
67 | var ts = out.tabs["tRNS"],
68 | tr = -1,
69 | tg = -1,
70 | tb = -1;
71 | if (ts) {
72 | tr = ts[0];
73 | tg = ts[1];
74 | tb = ts[2];
75 | }
76 | if (depth == 8)
77 | for (var i = 0; i < area; i++) {
78 | var qi = i << 2,
79 | ti = i * 3;
80 | bf[qi] = data[ti];
81 | bf[qi + 1] = data[ti + 1];
82 | bf[qi + 2] = data[ti + 2];
83 | bf[qi + 3] = 255;
84 | if (tr != -1 && data[ti] == tr && data[ti + 1] == tg && data[ti + 2] == tb) bf[qi + 3] = 0;
85 | }
86 | if (depth == 16)
87 | for (var i = 0; i < area; i++) {
88 | var qi = i << 2,
89 | ti = i * 6;
90 | bf[qi] = data[ti];
91 | bf[qi + 1] = data[ti + 2];
92 | bf[qi + 2] = data[ti + 4];
93 | bf[qi + 3] = 255;
94 | if (tr != -1 && rs(data, ti) == tr && rs(data, ti + 2) == tg && rs(data, ti + 4) == tb) bf[qi + 3] = 0;
95 | }
96 | } else if (ctype == 3) { // palette
97 | var p = out.tabs["PLTE"],
98 | ap = out.tabs["tRNS"],
99 | tl = ap ? ap.length : 0;
100 | //console.log(p, ap);
101 | if (depth == 1)
102 | for (var y = 0; y < h; y++) {
103 | var s0 = y * bpl,
104 | t0 = y * w;
105 | for (var i = 0; i < w; i++) {
106 | var qi = (t0 + i) << 2,
107 | j = ((data[s0 + (i >> 3)] >> (7 - ((i & 7) << 0))) & 1),
108 | cj = 3 * j;
109 | bf[qi] = p[cj];
110 | bf[qi + 1] = p[cj + 1];
111 | bf[qi + 2] = p[cj + 2];
112 | bf[qi + 3] = (j < tl) ? ap[j] : 255;
113 | }
114 | }
115 | if (depth == 2)
116 | for (var y = 0; y < h; y++) {
117 | var s0 = y * bpl,
118 | t0 = y * w;
119 | for (var i = 0; i < w; i++) {
120 | var qi = (t0 + i) << 2,
121 | j = ((data[s0 + (i >> 2)] >> (6 - ((i & 3) << 1))) & 3),
122 | cj = 3 * j;
123 | bf[qi] = p[cj];
124 | bf[qi + 1] = p[cj + 1];
125 | bf[qi + 2] = p[cj + 2];
126 | bf[qi + 3] = (j < tl) ? ap[j] : 255;
127 | }
128 | }
129 | if (depth == 4)
130 | for (var y = 0; y < h; y++) {
131 | var s0 = y * bpl,
132 | t0 = y * w;
133 | for (var i = 0; i < w; i++) {
134 | var qi = (t0 + i) << 2,
135 | j = ((data[s0 + (i >> 1)] >> (4 - ((i & 1) << 2))) & 15),
136 | cj = 3 * j;
137 | bf[qi] = p[cj];
138 | bf[qi + 1] = p[cj + 1];
139 | bf[qi + 2] = p[cj + 2];
140 | bf[qi + 3] = (j < tl) ? ap[j] : 255;
141 | }
142 | }
143 | if (depth == 8)
144 | for (var i = 0; i < area; i++) {
145 | var qi = i << 2,
146 | j = data[i],
147 | cj = 3 * j;
148 | bf[qi] = p[cj];
149 | bf[qi + 1] = p[cj + 1];
150 | bf[qi + 2] = p[cj + 2];
151 | bf[qi + 3] = (j < tl) ? ap[j] : 255;
152 | }
153 | } else if (ctype == 4) { // gray + alpha
154 | if (depth == 8)
155 | for (var i = 0; i < area; i++) {
156 | var qi = i << 2,
157 | di = i << 1,
158 | gr = data[di];
159 | bf[qi] = gr;
160 | bf[qi + 1] = gr;
161 | bf[qi + 2] = gr;
162 | bf[qi + 3] = data[di + 1];
163 | }
164 | if (depth == 16)
165 | for (var i = 0; i < area; i++) {
166 | var qi = i << 2,
167 | di = i << 2,
168 | gr = data[di];
169 | bf[qi] = gr;
170 | bf[qi + 1] = gr;
171 | bf[qi + 2] = gr;
172 | bf[qi + 3] = data[di + 2];
173 | }
174 | } else if (ctype == 0) { // gray
175 | var tr = out.tabs["tRNS"] ? out.tabs["tRNS"] : -1;
176 | if (depth == 1)
177 | for (var i = 0; i < area; i++) {
178 | var gr = 255 * ((data[i >> 3] >> (7 - ((i & 7)))) & 1),
179 | al = (gr == tr * 255) ? 0 : 255;
180 | bf32[i] = (al << 24) | (gr << 16) | (gr << 8) | gr;
181 | }
182 | if (depth == 2)
183 | for (var i = 0; i < area; i++) {
184 | var gr = 85 * ((data[i >> 2] >> (6 - ((i & 3) << 1))) & 3),
185 | al = (gr == tr * 85) ? 0 : 255;
186 | bf32[i] = (al << 24) | (gr << 16) | (gr << 8) | gr;
187 | }
188 | if (depth == 4)
189 | for (var i = 0; i < area; i++) {
190 | var gr = 17 * ((data[i >> 1] >> (4 - ((i & 1) << 2))) & 15),
191 | al = (gr == tr * 17) ? 0 : 255;
192 | bf32[i] = (al << 24) | (gr << 16) | (gr << 8) | gr;
193 | }
194 | if (depth == 8)
195 | for (var i = 0; i < area; i++) {
196 | var gr = data[i],
197 | al = (gr == tr) ? 0 : 255;
198 | bf32[i] = (al << 24) | (gr << 16) | (gr << 8) | gr;
199 | }
200 | if (depth == 16)
201 | for (var i = 0; i < area; i++) {
202 | var gr = data[i << 1],
203 | al = (rs(data, i << 1) == tr) ? 0 : 255;
204 | bf32[i] = (al << 24) | (gr << 16) | (gr << 8) | gr;
205 | }
206 | }
207 | return bf;
208 | }
209 |
210 | UPNG.decode = function (buff) {
211 | var data = new Uint8Array(buff),
212 | offset = 8,
213 | bin = UPNG._bin,
214 | rUs = bin.readUshort,
215 | rUi = bin.readUint;
216 | var out = {
217 | tabs: {},
218 | frames: []
219 | };
220 | var dd = new Uint8Array(data.length),
221 | doff = 0; // put all IDAT data into it
222 | var fd, foff = 0; // frames
223 | var mgck = [0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a];
224 | for (var i = 0; i < 8; i++)
225 | if (data[i] != mgck[i]) throw "The input is not a PNG file!";
226 |
227 | while (offset < data.length) {
228 | var len = bin.readUint(data, offset);
229 | offset += 4;
230 | var type = bin.readASCII(data, offset, 4);
231 | offset += 4;
232 | //console.log(type,len);
233 | if (type == "IHDR") {
234 | UPNG.decode._IHDR(data, offset, out);
235 | } else if (type == "IDAT") {
236 | for (var i = 0; i < len; i++) dd[doff + i] = data[offset + i];
237 | doff += len;
238 | } else if (type == "acTL") {
239 | out.tabs[type] = {
240 | num_frames: rUi(data, offset),
241 | num_plays: rUi(data, offset + 4)
242 | };
243 | fd = new Uint8Array(data.length);
244 | } else if (type == "fcTL") {
245 | if (foff != 0) {
246 | var fr = out.frames[out.frames.length - 1];
247 | fr.data = UPNG.decode._decompress(out, fd.slice(0, foff), fr.rect.width, fr.rect.height);
248 | foff = 0;
249 | }
250 | var rct = {
251 | x: rUi(data, offset + 12),
252 | y: rUi(data, offset + 16),
253 | width: rUi(data, offset + 4),
254 | height: rUi(data, offset + 8)
255 | };
256 | var del = rUs(data, offset + 22);
257 | del = rUs(data, offset + 20) / (del == 0 ? 100 : del);
258 | var frm = {
259 | rect: rct,
260 | delay: Math.round(del * 1000),
261 | dispose: data[offset + 24],
262 | blend: data[offset + 25]
263 | };
264 | //console.log(frm);
265 | out.frames.push(frm);
266 | } else if (type == "fdAT") {
267 | for (var i = 0; i < len - 4; i++) fd[foff + i] = data[offset + i + 4];
268 | foff += len - 4;
269 | } else if (type == "pHYs") {
270 | out.tabs[type] = [bin.readUint(data, offset), bin.readUint(data, offset + 4), data[offset + 8]];
271 | } else if (type == "cHRM") {
272 | out.tabs[type] = [];
273 | for (var i = 0; i < 8; i++) out.tabs[type].push(bin.readUint(data, offset + i * 4));
274 | } else if (type == "tEXt") {
275 | if (out.tabs[type] == null) out.tabs[type] = {};
276 | var nz = bin.nextZero(data, offset);
277 | var keyw = bin.readASCII(data, offset, nz - offset);
278 | var text = bin.readASCII(data, nz + 1, offset + len - nz - 1);
279 | out.tabs[type][keyw] = text;
280 | } else if (type == "iTXt") {
281 | if (out.tabs[type] == null) out.tabs[type] = {};
282 | var nz = 0,
283 | off = offset;
284 | nz = bin.nextZero(data, off);
285 | var keyw = bin.readASCII(data, off, nz - off);
286 | off = nz + 1;
287 | var cflag = data[off],
288 | cmeth = data[off + 1];
289 | off += 2;
290 | nz = bin.nextZero(data, off);
291 | var ltag = bin.readASCII(data, off, nz - off);
292 | off = nz + 1;
293 | nz = bin.nextZero(data, off);
294 | var tkeyw = bin.readUTF8(data, off, nz - off);
295 | off = nz + 1;
296 | var text = bin.readUTF8(data, off, len - (off - offset));
297 | out.tabs[type][keyw] = text;
298 | } else if (type == "PLTE") {
299 | out.tabs[type] = bin.readBytes(data, offset, len);
300 | } else if (type == "hIST") {
301 | var pl = out.tabs["PLTE"].length / 3;
302 | out.tabs[type] = [];
303 | for (var i = 0; i < pl; i++) out.tabs[type].push(rUs(data, offset + i * 2));
304 | } else if (type == "tRNS") {
305 | if (out.ctype == 3) out.tabs[type] = bin.readBytes(data, offset, len);
306 | else if (out.ctype == 0) out.tabs[type] = rUs(data, offset);
307 | else if (out.ctype == 2) out.tabs[type] = [rUs(data, offset), rUs(data, offset + 2), rUs(data, offset + 4)];
308 | //else console.log("tRNS for unsupported color type",out.ctype, len);
309 | } else if (type == "gAMA") out.tabs[type] = bin.readUint(data, offset) / 100000;
310 | else if (type == "sRGB") out.tabs[type] = data[offset];
311 | else if (type == "bKGD") {
312 | if (out.ctype == 0 || out.ctype == 4) out.tabs[type] = [rUs(data, offset)];
313 | else if (out.ctype == 2 || out.ctype == 6) out.tabs[type] = [rUs(data, offset), rUs(data, offset + 2), rUs(data, offset + 4)];
314 | else if (out.ctype == 3) out.tabs[type] = data[offset];
315 | } else if (type == "IEND") {
316 | break;
317 | }
318 | offset += len;
319 | var crc = bin.readUint(data, offset);
320 | offset += 4;
321 | }
322 | if (foff != 0) {
323 | var fr = out.frames[out.frames.length - 1];
324 | fr.data = UPNG.decode._decompress(out, fd.slice(0, foff), fr.rect.width, fr.rect.height);
325 | foff = 0;
326 | }
327 | out.data = UPNG.decode._decompress(out, dd, out.width, out.height);
328 |
329 | delete out.compress;
330 | delete out.interlace;
331 | delete out.filter;
332 | return out;
333 | }
334 |
335 | UPNG.decode._decompress = function (out, dd, w, h) {
336 | if (out.compress == 0) dd = UPNG.decode._inflate(dd);
337 |
338 | if (out.interlace == 0) dd = UPNG.decode._filterZero(dd, out, 0, w, h);
339 | else if (out.interlace == 1) dd = UPNG.decode._readInterlace(dd, out);
340 | return dd;
341 | }
342 |
343 | UPNG.decode._inflate = function (data) {
344 | return pako["inflate"](data);
345 | }
346 |
347 | UPNG.decode._readInterlace = function (data, out) {
348 | var w = out.width,
349 | h = out.height;
350 | var bpp = UPNG.decode._getBPP(out),
351 | cbpp = bpp >> 3,
352 | bpl = Math.ceil(w * bpp / 8);
353 | var img = new Uint8Array(h * bpl);
354 | var di = 0;
355 |
356 | var starting_row = [0, 0, 4, 0, 2, 0, 1];
357 | var starting_col = [0, 4, 0, 2, 0, 1, 0];
358 | var row_increment = [8, 8, 8, 4, 4, 2, 2];
359 | var col_increment = [8, 8, 4, 4, 2, 2, 1];
360 |
361 | var pass = 0;
362 | while (pass < 7) {
363 | var ri = row_increment[pass],
364 | ci = col_increment[pass];
365 | var sw = 0,
366 | sh = 0;
367 | var cr = starting_row[pass];
368 | while (cr < h) {
369 | cr += ri;
370 | sh++;
371 | }
372 | var cc = starting_col[pass];
373 | while (cc < w) {
374 | cc += ci;
375 | sw++;
376 | }
377 | var bpll = Math.ceil(sw * bpp / 8);
378 | UPNG.decode._filterZero(data, out, di, sw, sh);
379 |
380 | var y = 0,
381 | row = starting_row[pass];
382 | while (row < h) {
383 | var col = starting_col[pass];
384 | var cdi = (di + y * bpll) << 3;
385 |
386 | while (col < w) {
387 | if (bpp == 1) {
388 | var val = data[cdi >> 3];
389 | val = (val >> (7 - (cdi & 7))) & 1;
390 | img[row * bpl + (col >> 3)] |= (val << (7 - ((col & 3) << 0)));
391 | }
392 | if (bpp == 2) {
393 | var val = data[cdi >> 3];
394 | val = (val >> (6 - (cdi & 7))) & 3;
395 | img[row * bpl + (col >> 2)] |= (val << (6 - ((col & 3) << 1)));
396 | }
397 | if (bpp == 4) {
398 | var val = data[cdi >> 3];
399 | val = (val >> (4 - (cdi & 7))) & 15;
400 | img[row * bpl + (col >> 1)] |= (val << (4 - ((col & 1) << 2)));
401 | }
402 | if (bpp >= 8) {
403 | var ii = row * bpl + col * cbpp;
404 | for (var j = 0; j < cbpp; j++) img[ii + j] = data[(cdi >> 3) + j];
405 | }
406 | cdi += bpp;
407 | col += ci;
408 | }
409 | y++;
410 | row += ri;
411 | }
412 | if (sw * sh != 0) di += sh * (1 + bpll);
413 | pass = pass + 1;
414 | }
415 | return img;
416 | }
417 |
418 | UPNG.decode._getBPP = function (out) {
419 | var noc = [1, null, 3, 1, 2, null, 4][out.ctype];
420 | return noc * out.depth;
421 | }
422 |
423 | UPNG.decode._filterZero = function (data, out, off, w, h) {
424 | var bpp = UPNG.decode._getBPP(out),
425 | bpl = Math.ceil(w * bpp / 8),
426 | paeth = UPNG.decode._paeth;
427 | bpp = Math.ceil(bpp / 8);
428 |
429 | for (var y = 0; y < h; y++) {
430 | var i = off + y * bpl,
431 | di = i + y + 1;
432 | var type = data[di - 1];
433 |
434 | if (type == 0)
435 | for (var x = 0; x < bpl; x++) data[i + x] = data[di + x];
436 | else if (type == 1) {
437 | for (var x = 0; x < bpp; x++) data[i + x] = data[di + x];
438 | for (var x = bpp; x < bpl; x++) data[i + x] = (data[di + x] + data[i + x - bpp]) & 255;
439 | } else if (y == 0) {
440 | for (var x = 0; x < bpp; x++) data[i + x] = data[di + x];
441 | if (type == 2)
442 | for (var x = bpp; x < bpl; x++) data[i + x] = (data[di + x]) & 255;
443 | if (type == 3)
444 | for (var x = bpp; x < bpl; x++) data[i + x] = (data[di + x] + (data[i + x - bpp] >> 1)) & 255;
445 | if (type == 4)
446 | for (var x = bpp; x < bpl; x++) data[i + x] = (data[di + x] + paeth(data[i + x - bpp], 0, 0)) & 255;
447 | } else {
448 | if (type == 2) {
449 | for (var x = 0; x < bpl; x++) data[i + x] = (data[di + x] + data[i + x - bpl]) & 255;
450 | }
451 |
452 | if (type == 3) {
453 | for (var x = 0; x < bpp; x++) data[i + x] = (data[di + x] + (data[i + x - bpl] >> 1)) & 255;
454 | for (var x = bpp; x < bpl; x++) data[i + x] = (data[di + x] + ((data[i + x - bpl] + data[i + x - bpp]) >> 1)) & 255;
455 | }
456 |
457 | if (type == 4) {
458 | for (var x = 0; x < bpp; x++) data[i + x] = (data[di + x] + paeth(0, data[i + x - bpl], 0)) & 255;
459 | for (var x = bpp; x < bpl; x++) data[i + x] = (data[di + x] + paeth(data[i + x - bpp], data[i + x - bpl], data[i + x - bpp - bpl])) & 255;
460 | }
461 | }
462 | }
463 | return data;
464 | }
465 |
466 | UPNG.decode._paeth = function (a, b, c) {
467 | var p = a + b - c,
468 | pa = Math.abs(p - a),
469 | pb = Math.abs(p - b),
470 | pc = Math.abs(p - c);
471 | if (pa <= pb && pa <= pc) return a;
472 | else if (pb <= pc) return b;
473 | return c;
474 | }
475 |
476 | UPNG.decode._IHDR = function (data, offset, out) {
477 | var bin = UPNG._bin;
478 | out.width = bin.readUint(data, offset);
479 | offset += 4;
480 | out.height = bin.readUint(data, offset);
481 | offset += 4;
482 | out.depth = data[offset];
483 | offset++;
484 | out.ctype = data[offset];
485 | offset++;
486 | out.compress = data[offset];
487 | offset++;
488 | out.filter = data[offset];
489 | offset++;
490 | out.interlace = data[offset];
491 | offset++;
492 | }
493 |
494 | UPNG._bin = {
495 | nextZero: function (data, p) {
496 | while (data[p] != 0) p++;
497 | return p;
498 | },
499 | readUshort: function (buff, p) {
500 | return (buff[p] << 8) | buff[p + 1];
501 | },
502 | writeUshort: function (buff, p, n) {
503 | buff[p] = (n >> 8) & 255;
504 | buff[p + 1] = n & 255;
505 | },
506 | readUint: function (buff, p) {
507 | return (buff[p] * (256 * 256 * 256)) + ((buff[p + 1] << 16) | (buff[p + 2] << 8) | buff[p + 3]);
508 | },
509 | writeUint: function (buff, p, n) {
510 | buff[p] = (n >> 24) & 255;
511 | buff[p + 1] = (n >> 16) & 255;
512 | buff[p + 2] = (n >> 8) & 255;
513 | buff[p + 3] = n & 255;
514 | },
515 | readASCII: function (buff, p, l) {
516 | var s = "";
517 | for (var i = 0; i < l; i++) s += String.fromCharCode(buff[p + i]);
518 | return s;
519 | },
520 | writeASCII: function (data, p, s) {
521 | for (var i = 0; i < s.length; i++) data[p + i] = s.charCodeAt(i);
522 | },
523 | readBytes: function (buff, p, l) {
524 | var arr = [];
525 | for (var i = 0; i < l; i++) arr.push(buff[p + i]);
526 | return arr;
527 | },
528 | pad: function (n) {
529 | return n.length < 2 ? "0" + n : n;
530 | },
531 | readUTF8: function (buff, p, l) {
532 | var s = "",
533 | ns;
534 | for (var i = 0; i < l; i++) s += "%" + UPNG._bin.pad(buff[p + i].toString(16));
535 | try {
536 | ns = decodeURIComponent(s);
537 | } catch (e) {
538 | return UPNG._bin.readASCII(buff, p, l);
539 | }
540 | return ns;
541 | }
542 | }
543 | UPNG._copyTile = function (sb, sw, sh, tb, tw, th, xoff, yoff, mode) {
544 | var w = Math.min(sw, tw),
545 | h = Math.min(sh, th);
546 | var si = 0,
547 | ti = 0;
548 | for (var y = 0; y < h; y++)
549 | for (var x = 0; x < w; x++) {
550 | if (xoff >= 0 && yoff >= 0) {
551 | si = (y * sw + x) << 2;
552 | ti = ((yoff + y) * tw + xoff + x) << 2;
553 | } else {
554 | si = ((-yoff + y) * sw - xoff + x) << 2;
555 | ti = (y * tw + x) << 2;
556 | }
557 |
558 | if (mode == 0) {
559 | tb[ti] = sb[si];
560 | tb[ti + 1] = sb[si + 1];
561 | tb[ti + 2] = sb[si + 2];
562 | tb[ti + 3] = sb[si + 3];
563 | } else if (mode == 1) {
564 | var fa = sb[si + 3] * (1 / 255),
565 | fr = sb[si] * fa,
566 | fg = sb[si + 1] * fa,
567 | fb = sb[si + 2] * fa;
568 | var ba = tb[ti + 3] * (1 / 255),
569 | br = tb[ti] * ba,
570 | bg = tb[ti + 1] * ba,
571 | bb = tb[ti + 2] * ba;
572 |
573 | var ifa = 1 - fa,
574 | oa = fa + ba * ifa,
575 | ioa = (oa == 0 ? 0 : 1 / oa);
576 | tb[ti + 3] = 255 * oa;
577 | tb[ti + 0] = (fr + br * ifa) * ioa;
578 | tb[ti + 1] = (fg + bg * ifa) * ioa;
579 | tb[ti + 2] = (fb + bb * ifa) * ioa;
580 | } else if (mode == 2) { // copy only differences, otherwise zero
581 | var fa = sb[si + 3],
582 | fr = sb[si],
583 | fg = sb[si + 1],
584 | fb = sb[si + 2];
585 | var ba = tb[ti + 3],
586 | br = tb[ti],
587 | bg = tb[ti + 1],
588 | bb = tb[ti + 2];
589 | if (fa == ba && fr == br && fg == bg && fb == bb) {
590 | tb[ti] = 0;
591 | tb[ti + 1] = 0;
592 | tb[ti + 2] = 0;
593 | tb[ti + 3] = 0;
594 | } else {
595 | tb[ti] = fr;
596 | tb[ti + 1] = fg;
597 | tb[ti + 2] = fb;
598 | tb[ti + 3] = fa;
599 | }
600 | } else if (mode == 3) { // check if can be blended
601 | var fa = sb[si + 3],
602 | fr = sb[si],
603 | fg = sb[si + 1],
604 | fb = sb[si + 2];
605 | var ba = tb[ti + 3],
606 | br = tb[ti],
607 | bg = tb[ti + 1],
608 | bb = tb[ti + 2];
609 | if (fa == ba && fr == br && fg == bg && fb == bb) continue;
610 | //if(fa!=255 && ba!=0) return false;
611 | if (fa < 220 && ba > 20) return false;
612 | }
613 | }
614 | return true;
615 | }
616 |
617 | UPNG.encode = function (bufs, w, h, ps, dels, forbidPlte) {
618 | if (ps == null) ps = 0;
619 | if (forbidPlte == null) forbidPlte = false;
620 |
621 | var nimg = UPNG.encode.compress(bufs, w, h, ps, false, forbidPlte);
622 | UPNG.encode.compressPNG(nimg, -1);
623 |
624 | return UPNG.encode._main(nimg, w, h, dels);
625 | }
626 |
627 | UPNG.encodeLL = function (bufs, w, h, cc, ac, depth, dels) {
628 | var nimg = {
629 | ctype: 0 + (cc == 1 ? 0 : 2) + (ac == 0 ? 0 : 4),
630 | depth: depth,
631 | frames: []
632 | };
633 |
634 | var bipp = (cc + ac) * depth,
635 | bipl = bipp * w;
636 | for (var i = 0; i < bufs.length; i++) nimg.frames.push({
637 | rect: {
638 | x: 0,
639 | y: 0,
640 | width: w,
641 | height: h
642 | },
643 | img: new Uint8Array(bufs[i]),
644 | blend: 0,
645 | dispose: 1,
646 | bpp: Math.ceil(bipp / 8),
647 | bpl: Math.ceil(bipl / 8)
648 | });
649 |
650 | UPNG.encode.compressPNG(nimg, 4);
651 |
652 | return UPNG.encode._main(nimg, w, h, dels);
653 | }
654 |
655 | UPNG.encode._main = function (nimg, w, h, dels) {
656 | var crc = UPNG.crc.crc,
657 | wUi = UPNG._bin.writeUint,
658 | wUs = UPNG._bin.writeUshort,
659 | wAs = UPNG._bin.writeASCII;
660 | var offset = 8,
661 | anim = nimg.frames.length > 1,
662 | pltAlpha = false;
663 |
664 | var leng = 8 + (16 + 5 + 4) + (9 + 4) + (anim ? 20 : 0);
665 | if (nimg.ctype == 3) {
666 | var dl = nimg.plte.length;
667 | for (var i = 0; i < dl; i++)
668 | if ((nimg.plte[i] >>> 24) != 255) pltAlpha = true;
669 | leng += (8 + dl * 3 + 4) + (pltAlpha ? (8 + dl * 1 + 4) : 0);
670 | }
671 | for (var j = 0; j < nimg.frames.length; j++) {
672 | var fr = nimg.frames[j];
673 | if (anim) leng += 38;
674 | leng += fr.cimg.length + 12;
675 | if (j != 0) leng += 4;
676 | }
677 | leng += 12;
678 |
679 | var data = new Uint8Array(leng);
680 | var wr = [0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a];
681 | for (var i = 0; i < 8; i++) data[i] = wr[i];
682 |
683 | wUi(data, offset, 13);
684 | offset += 4;
685 | wAs(data, offset, "IHDR");
686 | offset += 4;
687 | wUi(data, offset, w);
688 | offset += 4;
689 | wUi(data, offset, h);
690 | offset += 4;
691 | data[offset] = nimg.depth;
692 | offset++; // depth
693 | data[offset] = nimg.ctype;
694 | offset++; // ctype
695 | data[offset] = 0;
696 | offset++; // compress
697 | data[offset] = 0;
698 | offset++; // filter
699 | data[offset] = 0;
700 | offset++; // interlace
701 | wUi(data, offset, crc(data, offset - 17, 17));
702 | offset += 4; // crc
703 | // 9 bytes to say, that it is sRGB
704 | wUi(data, offset, 1);
705 | offset += 4;
706 | wAs(data, offset, "sRGB");
707 | offset += 4;
708 | data[offset] = 1;
709 | offset++;
710 | wUi(data, offset, crc(data, offset - 5, 5));
711 | offset += 4; // crc
712 | if (anim) {
713 | wUi(data, offset, 8);
714 | offset += 4;
715 | wAs(data, offset, "acTL");
716 | offset += 4;
717 | wUi(data, offset, nimg.frames.length);
718 | offset += 4;
719 | wUi(data, offset, 0);
720 | offset += 4;
721 | wUi(data, offset, crc(data, offset - 12, 12));
722 | offset += 4; // crc
723 | }
724 |
725 | if (nimg.ctype == 3) {
726 | var dl = nimg.plte.length;
727 | wUi(data, offset, dl * 3);
728 | offset += 4;
729 | wAs(data, offset, "PLTE");
730 | offset += 4;
731 | for (var i = 0; i < dl; i++) {
732 | var ti = i * 3,
733 | c = nimg.plte[i],
734 | r = (c) & 255,
735 | g = (c >>> 8) & 255,
736 | b = (c >>> 16) & 255;
737 | data[offset + ti + 0] = r;
738 | data[offset + ti + 1] = g;
739 | data[offset + ti + 2] = b;
740 | }
741 | offset += dl * 3;
742 | wUi(data, offset, crc(data, offset - dl * 3 - 4, dl * 3 + 4));
743 | offset += 4; // crc
744 | if (pltAlpha) {
745 | wUi(data, offset, dl);
746 | offset += 4;
747 | wAs(data, offset, "tRNS");
748 | offset += 4;
749 | for (var i = 0; i < dl; i++) data[offset + i] = (nimg.plte[i] >>> 24) & 255;
750 | offset += dl;
751 | wUi(data, offset, crc(data, offset - dl - 4, dl + 4));
752 | offset += 4; // crc
753 | }
754 | }
755 |
756 | var fi = 0;
757 | for (var j = 0; j < nimg.frames.length; j++) {
758 | var fr = nimg.frames[j];
759 | if (anim) {
760 | wUi(data, offset, 26);
761 | offset += 4;
762 | wAs(data, offset, "fcTL");
763 | offset += 4;
764 | wUi(data, offset, fi++);
765 | offset += 4;
766 | wUi(data, offset, fr.rect.width);
767 | offset += 4;
768 | wUi(data, offset, fr.rect.height);
769 | offset += 4;
770 | wUi(data, offset, fr.rect.x);
771 | offset += 4;
772 | wUi(data, offset, fr.rect.y);
773 | offset += 4;
774 | wUs(data, offset, dels[j]);
775 | offset += 2;
776 | wUs(data, offset, 1000);
777 | offset += 2;
778 | data[offset] = fr.dispose;
779 | offset++; // dispose
780 | data[offset] = fr.blend;
781 | offset++; // blend
782 | wUi(data, offset, crc(data, offset - 30, 30));
783 | offset += 4; // crc
784 | }
785 |
786 | var imgd = fr.cimg,
787 | dl = imgd.length;
788 | wUi(data, offset, dl + (j == 0 ? 0 : 4));
789 | offset += 4;
790 | var ioff = offset;
791 | wAs(data, offset, (j == 0) ? "IDAT" : "fdAT");
792 | offset += 4;
793 | if (j != 0) {
794 | wUi(data, offset, fi++);
795 | offset += 4;
796 | }
797 | for (var i = 0; i < dl; i++) data[offset + i] = imgd[i];
798 | offset += dl;
799 | wUi(data, offset, crc(data, ioff, offset - ioff));
800 | offset += 4; // crc
801 | }
802 |
803 | wUi(data, offset, 0);
804 | offset += 4;
805 | wAs(data, offset, "IEND");
806 | offset += 4;
807 | wUi(data, offset, crc(data, offset - 4, 4));
808 | offset += 4; // crc
809 | return data.buffer;
810 | }
811 |
812 | UPNG.encode.compressPNG = function (out, filter) {
813 | for (var i = 0; i < out.frames.length; i++) {
814 | var frm = out.frames[i],
815 | nw = frm.rect.width,
816 | nh = frm.rect.height;
817 | var fdata = new Uint8Array(nh * frm.bpl + nh);
818 | frm.cimg = UPNG.encode._filterZero(frm.img, nh, frm.bpp, frm.bpl, fdata, filter);
819 | }
820 | }
821 |
822 | UPNG.encode.compress = function (bufs, w, h, ps, forGIF, forbidPlte) {
823 | //var time = Date.now();
824 | if (forbidPlte == null) forbidPlte = false;
825 |
826 | var ctype = 6,
827 | depth = 8,
828 | alphaAnd = 255
829 |
830 | for (var j = 0; j < bufs.length; j++) { // when not quantized, other frames can contain colors, that are not in an initial frame
831 | var img = new Uint8Array(bufs[j]),
832 | ilen = img.length;
833 | for (var i = 0; i < ilen; i += 4) alphaAnd &= img[i + 3];
834 | }
835 | var gotAlpha = (alphaAnd != 255);
836 |
837 | //console.log("alpha check", Date.now()-time); time = Date.now();
838 | var brute = gotAlpha && forGIF; // brute : frames can only be copied, not "blended"
839 | var frms = UPNG.encode.framize(bufs, w, h, forGIF, brute);
840 | //console.log("framize", Date.now()-time); time = Date.now();
841 | var cmap = {},
842 | plte = [],
843 | inds = [];
844 |
845 | if (ps != 0) {
846 | var nbufs = [];
847 | for (var i = 0; i < frms.length; i++) nbufs.push(frms[i].img.buffer);
848 |
849 | var abuf = UPNG.encode.concatRGBA(nbufs, forGIF),
850 | qres = UPNG.quantize(abuf, ps);
851 | var cof = 0,
852 | bb = new Uint8Array(qres.abuf);
853 | for (var i = 0; i < frms.length; i++) {
854 | var ti = frms[i].img,
855 | bln = ti.length;
856 | inds.push(new Uint8Array(qres.inds.buffer, cof >> 2, bln >> 2));
857 | for (var j = 0; j < bln; j += 4) {
858 | ti[j] = bb[cof + j];
859 | ti[j + 1] = bb[cof + j + 1];
860 | ti[j + 2] = bb[cof + j + 2];
861 | ti[j + 3] = bb[cof + j + 3];
862 | }
863 | cof += bln;
864 | }
865 |
866 | for (var i = 0; i < qres.plte.length; i++) plte.push(qres.plte[i].est.rgba);
867 | //console.log("quantize", Date.now()-time); time = Date.now();
868 | } else {
869 | // what if ps==0, but there are <=256 colors? we still need to detect, if the palette could be used
870 | for (var j = 0; j < frms.length; j++) { // when not quantized, other frames can contain colors, that are not in an initial frame
871 | var frm = frms[j],
872 | img32 = new Uint32Array(frm.img.buffer),
873 | nw = frm.rect.width,
874 | ilen = img32.length;
875 | var ind = new Uint8Array(ilen);
876 | inds.push(ind);
877 | for (var i = 0; i < ilen; i++) {
878 | var c = img32[i];
879 | if (i != 0 && c == img32[i - 1]) ind[i] = ind[i - 1];
880 | else if (i > nw && c == img32[i - nw]) ind[i] = ind[i - nw];
881 | else {
882 | var cmc = cmap[c];
883 | if (cmc == null) {
884 | cmap[c] = cmc = plte.length;
885 | plte.push(c);
886 | if (plte.length >= 300) break;
887 | }
888 | ind[i] = cmc;
889 | }
890 | }
891 | }
892 | //console.log("make palette", Date.now()-time); time = Date.now();
893 | }
894 |
895 | var cc = plte.length; //console.log("colors:",cc);
896 | if (cc <= 256 && forbidPlte == false) {
897 | if (cc <= 2) depth = 1;
898 | else if (cc <= 4) depth = 2;
899 | else if (cc <= 16) depth = 4;
900 | else depth = 8;
901 | if (forGIF) depth = 8;
902 | }
903 |
904 | for (var j = 0; j < frms.length; j++) {
905 | var frm = frms[j],
906 | nx = frm.rect.x,
907 | ny = frm.rect.y,
908 | nw = frm.rect.width,
909 | nh = frm.rect.height;
910 | var cimg = frm.img,
911 | cimg32 = new Uint32Array(cimg.buffer);
912 | var bpl = 4 * nw,
913 | bpp = 4;
914 | if (cc <= 256 && forbidPlte == false) {
915 | bpl = Math.ceil(depth * nw / 8);
916 | var nimg = new Uint8Array(bpl * nh);
917 | var inj = inds[j];
918 | for (var y = 0; y < nh; y++) {
919 | var i = y * bpl,
920 | ii = y * nw;
921 | if (depth == 8)
922 | for (var x = 0; x < nw; x++) nimg[i + (x)] = (inj[ii + x]);
923 | else if (depth == 4)
924 | for (var x = 0; x < nw; x++) nimg[i + (x >> 1)] |= (inj[ii + x] << (4 - (x & 1) * 4));
925 | else if (depth == 2)
926 | for (var x = 0; x < nw; x++) nimg[i + (x >> 2)] |= (inj[ii + x] << (6 - (x & 3) * 2));
927 | else if (depth == 1)
928 | for (var x = 0; x < nw; x++) nimg[i + (x >> 3)] |= (inj[ii + x] << (7 - (x & 7) * 1));
929 | }
930 | cimg = nimg;
931 | ctype = 3;
932 | bpp = 1;
933 | } else if (gotAlpha == false && frms.length == 1) { // some next "reduced" frames may contain alpha for blending
934 | var nimg = new Uint8Array(nw * nh * 3),
935 | area = nw * nh;
936 | for (var i = 0; i < area; i++) {
937 | var ti = i * 3,
938 | qi = i * 4;
939 | nimg[ti] = cimg[qi];
940 | nimg[ti + 1] = cimg[qi + 1];
941 | nimg[ti + 2] = cimg[qi + 2];
942 | }
943 | cimg = nimg;
944 | ctype = 2;
945 | bpp = 3;
946 | bpl = 3 * nw;
947 | }
948 | frm.img = cimg;
949 | frm.bpl = bpl;
950 | frm.bpp = bpp;
951 | }
952 | //console.log("colors => palette indices", Date.now()-time); time = Date.now();
953 | return {
954 | ctype: ctype,
955 | depth: depth,
956 | plte: plte,
957 | frames: frms
958 | };
959 | }
960 | UPNG.encode.framize = function (bufs, w, h, forGIF, brute) {
961 | var frms = [];
962 | for (var j = 0; j < bufs.length; j++) {
963 | var cimg = new Uint8Array(bufs[j]),
964 | cimg32 = new Uint32Array(cimg.buffer);
965 |
966 | var nx = 0,
967 | ny = 0,
968 | nw = w,
969 | nh = h,
970 | blend = 0;
971 | if (j != 0 && !brute) {
972 | var tlim = (forGIF || j == 1 || frms[frms.length - 2].dispose == 2) ? 1 : 2,
973 | tstp = 0,
974 | tarea = 1e9;
975 | for (var it = 0; it < tlim; it++) {
976 | var pimg = new Uint8Array(bufs[j - 1 - it]),
977 | p32 = new Uint32Array(bufs[j - 1 - it]);
978 | var mix = w,
979 | miy = h,
980 | max = -1,
981 | may = -1;
982 | for (var y = 0; y < h; y++)
983 | for (var x = 0; x < w; x++) {
984 | var i = y * w + x;
985 | if (cimg32[i] != p32[i]) {
986 | if (x < mix) mix = x;
987 | if (x > max) max = x;
988 | if (y < miy) miy = y;
989 | if (y > may) may = y;
990 | }
991 | }
992 | var sarea = (max == -1) ? 1 : (max - mix + 1) * (may - miy + 1);
993 | if (sarea < tarea) {
994 | tarea = sarea;
995 | tstp = it;
996 | if (max == -1) {
997 | nx = ny = 0;
998 | nw = nh = 1;
999 | } else {
1000 | nx = mix;
1001 | ny = miy;
1002 | nw = max - mix + 1;
1003 | nh = may - miy + 1;
1004 | }
1005 | }
1006 | }
1007 |
1008 | var pimg = new Uint8Array(bufs[j - 1 - tstp]);
1009 | if (tstp == 1) frms[frms.length - 1].dispose = 2;
1010 |
1011 | var nimg = new Uint8Array(nw * nh * 4),
1012 | nimg32 = new Uint32Array(nimg.buffer);
1013 | UPNG._copyTile(pimg, w, h, nimg, nw, nh, -nx, -ny, 0);
1014 | if (UPNG._copyTile(cimg, w, h, nimg, nw, nh, -nx, -ny, 3)) {
1015 | UPNG._copyTile(cimg, w, h, nimg, nw, nh, -nx, -ny, 2);
1016 | blend = 1;
1017 | } else {
1018 | UPNG._copyTile(cimg, w, h, nimg, nw, nh, -nx, -ny, 0);
1019 | blend = 0;
1020 | }
1021 | cimg = nimg;
1022 | } else cimg = cimg.slice(0); // img may be rewrited further ... don't rewrite input
1023 | frms.push({
1024 | rect: {
1025 | x: nx,
1026 | y: ny,
1027 | width: nw,
1028 | height: nh
1029 | },
1030 | img: cimg,
1031 | blend: blend,
1032 | dispose: brute ? 1 : 0
1033 | });
1034 | }
1035 | return frms;
1036 | }
1037 |
1038 | UPNG.encode._filterZero = function (img, h, bpp, bpl, data, filter) {
1039 | if (filter != -1) {
1040 | for (var y = 0; y < h; y++) UPNG.encode._filterLine(data, img, y, bpl, bpp, filter);
1041 | return pako["deflate"](data);
1042 | }
1043 | var fls = [];
1044 | for (var t = 0; t < 5; t++) {
1045 | if (h * bpl > 500000 && (t == 2 || t == 3 || t == 4)) continue;
1046 | for (var y = 0; y < h; y++) UPNG.encode._filterLine(data, img, y, bpl, bpp, t);
1047 | fls.push(pako["deflate"](data));
1048 | if (bpp == 1) break;
1049 | }
1050 | var ti, tsize = 1e9;
1051 | for (var i = 0; i < fls.length; i++)
1052 | if (fls[i].length < tsize) {
1053 | ti = i;
1054 | tsize = fls[i].length;
1055 | }
1056 | return fls[ti];
1057 | }
1058 | UPNG.encode._filterLine = function (data, img, y, bpl, bpp, type) {
1059 | var i = y * bpl,
1060 | di = i + y,
1061 | paeth = UPNG.decode._paeth;
1062 | data[di] = type;
1063 | di++;
1064 |
1065 | if (type == 0)
1066 | for (var x = 0; x < bpl; x++) data[di + x] = img[i + x];
1067 | else if (type == 1) {
1068 | for (var x = 0; x < bpp; x++) data[di + x] = img[i + x];
1069 | for (var x = bpp; x < bpl; x++) data[di + x] = (img[i + x] - img[i + x - bpp] + 256) & 255;
1070 | } else if (y == 0) {
1071 | for (var x = 0; x < bpp; x++) data[di + x] = img[i + x];
1072 |
1073 | if (type == 2)
1074 | for (var x = bpp; x < bpl; x++) data[di + x] = img[i + x];
1075 | if (type == 3)
1076 | for (var x = bpp; x < bpl; x++) data[di + x] = (img[i + x] - (img[i + x - bpp] >> 1) + 256) & 255;
1077 | if (type == 4)
1078 | for (var x = bpp; x < bpl; x++) data[di + x] = (img[i + x] - paeth(img[i + x - bpp], 0, 0) + 256) & 255;
1079 | } else {
1080 | if (type == 2) {
1081 | for (var x = 0; x < bpl; x++) data[di + x] = (img[i + x] + 256 - img[i + x - bpl]) & 255;
1082 | }
1083 | if (type == 3) {
1084 | for (var x = 0; x < bpp; x++) data[di + x] = (img[i + x] + 256 - (img[i + x - bpl] >> 1)) & 255;
1085 | for (var x = bpp; x < bpl; x++) data[di + x] = (img[i + x] + 256 - ((img[i + x - bpl] + img[i + x - bpp]) >> 1)) & 255;
1086 | }
1087 | if (type == 4) {
1088 | for (var x = 0; x < bpp; x++) data[di + x] = (img[i + x] + 256 - paeth(0, img[i + x - bpl], 0)) & 255;
1089 | for (var x = bpp; x < bpl; x++) data[di + x] = (img[i + x] + 256 - paeth(img[i + x - bpp], img[i + x - bpl], img[i + x - bpp - bpl])) & 255;
1090 | }
1091 | }
1092 | }
1093 |
1094 | UPNG.crc = {
1095 | table: (function () {
1096 | var tab = new Uint32Array(256);
1097 | for (var n = 0; n < 256; n++) {
1098 | var c = n;
1099 | for (var k = 0; k < 8; k++) {
1100 | if (c & 1) c = 0xedb88320 ^ (c >>> 1);
1101 | else c = c >>> 1;
1102 | }
1103 | tab[n] = c;
1104 | }
1105 | return tab;
1106 | })(),
1107 | update: function (c, buf, off, len) {
1108 | for (var i = 0; i < len; i++) c = UPNG.crc.table[(c ^ buf[off + i]) & 0xff] ^ (c >>> 8);
1109 | return c;
1110 | },
1111 | crc: function (b, o, l) {
1112 | return UPNG.crc.update(0xffffffff, b, o, l) ^ 0xffffffff;
1113 | }
1114 | }
1115 |
1116 | UPNG.quantize = function (abuf, ps) {
1117 | var oimg = new Uint8Array(abuf),
1118 | nimg = oimg.slice(0),
1119 | nimg32 = new Uint32Array(nimg.buffer);
1120 |
1121 | var KD = UPNG.quantize.getKDtree(nimg, ps);
1122 | var root = KD[0],
1123 | leafs = KD[1];
1124 |
1125 | var planeDst = UPNG.quantize.planeDst;
1126 | var sb = oimg,
1127 | tb = nimg32,
1128 | len = sb.length;
1129 |
1130 | var inds = new Uint8Array(oimg.length >> 2);
1131 | for (var i = 0; i < len; i += 4) {
1132 | var r = sb[i] * (1 / 255),
1133 | g = sb[i + 1] * (1 / 255),
1134 | b = sb[i + 2] * (1 / 255),
1135 | a = sb[i + 3] * (1 / 255);
1136 |
1137 | // exact, but too slow :(
1138 | var nd = UPNG.quantize.getNearest(root, r, g, b, a);
1139 | //var nd = root;
1140 | //while(nd.left) nd = (planeDst(nd.est,r,g,b,a)<=0) ? nd.left : nd.right;
1141 | inds[i >> 2] = nd.ind;
1142 | tb[i >> 2] = nd.est.rgba;
1143 | }
1144 | return {
1145 | abuf: nimg.buffer,
1146 | inds: inds,
1147 | plte: leafs
1148 | };
1149 | }
1150 |
1151 | UPNG.quantize.getKDtree = function (nimg, ps, err) {
1152 | if (err == null) err = 0.0001;
1153 | var nimg32 = new Uint32Array(nimg.buffer);
1154 |
1155 | var root = {
1156 | i0: 0,
1157 | i1: nimg.length,
1158 | bst: null,
1159 | est: null,
1160 | tdst: 0,
1161 | left: null,
1162 | right: null
1163 | }; // basic statistic, extra statistic
1164 | root.bst = UPNG.quantize.stats(nimg, root.i0, root.i1);
1165 | root.est = UPNG.quantize.estats(root.bst);
1166 | var leafs = [root];
1167 |
1168 | while (leafs.length < ps) {
1169 | var maxL = 0,
1170 | mi = 0;
1171 | for (var i = 0; i < leafs.length; i++)
1172 | if (leafs[i].est.L > maxL) {
1173 | maxL = leafs[i].est.L;
1174 | mi = i;
1175 | }
1176 | if (maxL < err) break;
1177 | var node = leafs[mi];
1178 |
1179 | var s0 = UPNG.quantize.splitPixels(nimg, nimg32, node.i0, node.i1, node.est.e, node.est.eMq255);
1180 | var s0wrong = (node.i0 >= s0 || node.i1 <= s0);
1181 | //console.log(maxL, leafs.length, mi);
1182 | if (s0wrong) {
1183 | node.est.L = 0;
1184 | continue;
1185 | }
1186 |
1187 | var ln = {
1188 | i0: node.i0,
1189 | i1: s0,
1190 | bst: null,
1191 | est: null,
1192 | tdst: 0,
1193 | left: null,
1194 | right: null
1195 | };
1196 | ln.bst = UPNG.quantize.stats(nimg, ln.i0, ln.i1);
1197 | ln.est = UPNG.quantize.estats(ln.bst);
1198 | var rn = {
1199 | i0: s0,
1200 | i1: node.i1,
1201 | bst: null,
1202 | est: null,
1203 | tdst: 0,
1204 | left: null,
1205 | right: null
1206 | };
1207 | rn.bst = {
1208 | R: [],
1209 | m: [],
1210 | N: node.bst.N - ln.bst.N
1211 | };
1212 | for (var i = 0; i < 16; i++) rn.bst.R[i] = node.bst.R[i] - ln.bst.R[i];
1213 | for (var i = 0; i < 4; i++) rn.bst.m[i] = node.bst.m[i] - ln.bst.m[i];
1214 | rn.est = UPNG.quantize.estats(rn.bst);
1215 |
1216 | node.left = ln;
1217 | node.right = rn;
1218 | leafs[mi] = ln;
1219 | leafs.push(rn);
1220 | }
1221 | leafs.sort(function (a, b) {
1222 | return b.bst.N - a.bst.N;
1223 | });
1224 | for (var i = 0; i < leafs.length; i++) leafs[i].ind = i;
1225 | return [root, leafs];
1226 | }
1227 |
1228 | UPNG.quantize.getNearest = function (nd, r, g, b, a) {
1229 | if (nd.left == null) {
1230 | nd.tdst = UPNG.quantize.dist(nd.est.q, r, g, b, a);
1231 | return nd;
1232 | }
1233 | var planeDst = UPNG.quantize.planeDst(nd.est, r, g, b, a);
1234 |
1235 | var node0 = nd.left,
1236 | node1 = nd.right;
1237 | if (planeDst > 0) {
1238 | node0 = nd.right;
1239 | node1 = nd.left;
1240 | }
1241 |
1242 | var ln = UPNG.quantize.getNearest(node0, r, g, b, a);
1243 | if (ln.tdst <= planeDst * planeDst) return ln;
1244 | var rn = UPNG.quantize.getNearest(node1, r, g, b, a);
1245 | return rn.tdst < ln.tdst ? rn : ln;
1246 | }
1247 | UPNG.quantize.planeDst = function (est, r, g, b, a) {
1248 | var e = est.e;
1249 | return e[0] * r + e[1] * g + e[2] * b + e[3] * a - est.eMq;
1250 | }
1251 | UPNG.quantize.dist = function (q, r, g, b, a) {
1252 | var d0 = r - q[0],
1253 | d1 = g - q[1],
1254 | d2 = b - q[2],
1255 | d3 = a - q[3];
1256 | return d0 * d0 + d1 * d1 + d2 * d2 + d3 * d3;
1257 | }
1258 |
1259 | UPNG.quantize.splitPixels = function (nimg, nimg32, i0, i1, e, eMq) {
1260 | var vecDot = UPNG.quantize.vecDot;
1261 | i1 -= 4;
1262 | var shfs = 0;
1263 | while (i0 < i1) {
1264 | while (vecDot(nimg, i0, e) <= eMq) i0 += 4;
1265 | while (vecDot(nimg, i1, e) > eMq) i1 -= 4;
1266 | if (i0 >= i1) break;
1267 |
1268 | var t = nimg32[i0 >> 2];
1269 | nimg32[i0 >> 2] = nimg32[i1 >> 2];
1270 | nimg32[i1 >> 2] = t;
1271 |
1272 | i0 += 4;
1273 | i1 -= 4;
1274 | }
1275 | while (vecDot(nimg, i0, e) > eMq) i0 -= 4;
1276 | return i0 + 4;
1277 | }
1278 | UPNG.quantize.vecDot = function (nimg, i, e) {
1279 | return nimg[i] * e[0] + nimg[i + 1] * e[1] + nimg[i + 2] * e[2] + nimg[i + 3] * e[3];
1280 | }
1281 | UPNG.quantize.stats = function (nimg, i0, i1) {
1282 | var R = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
1283 | var m = [0, 0, 0, 0];
1284 | var N = (i1 - i0) >> 2;
1285 | for (var i = i0; i < i1; i += 4) {
1286 | var r = nimg[i] * (1 / 255),
1287 | g = nimg[i + 1] * (1 / 255),
1288 | b = nimg[i + 2] * (1 / 255),
1289 | a = nimg[i + 3] * (1 / 255);
1290 | //var r = nimg[i], g = nimg[i+1], b = nimg[i+2], a = nimg[i+3];
1291 | m[0] += r;
1292 | m[1] += g;
1293 | m[2] += b;
1294 | m[3] += a;
1295 |
1296 | R[0] += r * r;
1297 | R[1] += r * g;
1298 | R[2] += r * b;
1299 | R[3] += r * a;
1300 | R[5] += g * g;
1301 | R[6] += g * b;
1302 | R[7] += g * a;
1303 | R[10] += b * b;
1304 | R[11] += b * a;
1305 | R[15] += a * a;
1306 | }
1307 | R[4] = R[1];
1308 | R[8] = R[2];
1309 | R[9] = R[6];
1310 | R[12] = R[3];
1311 | R[13] = R[7];
1312 | R[14] = R[11];
1313 |
1314 | return {
1315 | R: R,
1316 | m: m,
1317 | N: N
1318 | };
1319 | }
1320 | UPNG.quantize.estats = function (stats) {
1321 | var R = stats.R,
1322 | m = stats.m,
1323 | N = stats.N;
1324 |
1325 | // when all samples are equal, but N is large (millions), the Rj can be non-zero ( 0.0003.... - precission error)
1326 | var m0 = m[0],
1327 | m1 = m[1],
1328 | m2 = m[2],
1329 | m3 = m[3],
1330 | iN = (N == 0 ? 0 : 1 / N);
1331 | var Rj = [R[0] - m0 * m0 * iN, R[1] - m0 * m1 * iN, R[2] - m0 * m2 * iN, R[3] - m0 * m3 * iN, R[4] - m1 * m0 * iN, R[5] - m1 * m1 * iN, R[6] - m1 * m2 * iN, R[7] - m1 * m3 * iN, R[8] - m2 * m0 * iN, R[9] - m2 * m1 * iN, R[10] - m2 * m2 * iN, R[11] - m2 * m3 * iN, R[12] - m3 * m0 * iN, R[13] - m3 * m1 * iN, R[14] - m3 * m2 * iN, R[15] - m3 * m3 * iN];
1332 |
1333 | var A = Rj,
1334 | M = UPNG.M4;
1335 | var b = [0.5, 0.5, 0.5, 0.5],
1336 | mi = 0,
1337 | tmi = 0;
1338 |
1339 | if (N != 0)
1340 | for (var i = 0; i < 10; i++) {
1341 | b = M.multVec(A, b);
1342 | tmi = Math.sqrt(M.dot(b, b));
1343 | b = M.sml(1 / tmi, b);
1344 | if (Math.abs(tmi - mi) < 1e-9) break;
1345 | mi = tmi;
1346 | }
1347 | //b = [0,0,1,0]; mi=N;
1348 | var q = [m0 * iN, m1 * iN, m2 * iN, m3 * iN];
1349 | var eMq255 = M.dot(M.sml(255, q), b);
1350 |
1351 | return {
1352 | Cov: Rj,
1353 | q: q,
1354 | e: b,
1355 | L: mi,
1356 | eMq255: eMq255,
1357 | eMq: M.dot(b, q),
1358 | rgba: (((Math.round(255 * q[3]) << 24) | (Math.round(255 * q[2]) << 16) | (Math.round(255 * q[1]) << 8) | (Math.round(255 * q[0]) << 0)) >>> 0)
1359 | };
1360 | }
1361 | UPNG.M4 = {
1362 | multVec: function (m, v) {
1363 | return [m[0] * v[0] + m[1] * v[1] + m[2] * v[2] + m[3] * v[3], m[4] * v[0] + m[5] * v[1] + m[6] * v[2] + m[7] * v[3], m[8] * v[0] + m[9] * v[1] + m[10] * v[2] + m[11] * v[3], m[12] * v[0] + m[13] * v[1] + m[14] * v[2] + m[15] * v[3]];
1364 | },
1365 | dot: function (x, y) {
1366 | return x[0] * y[0] + x[1] * y[1] + x[2] * y[2] + x[3] * y[3];
1367 | },
1368 | sml: function (a, y) {
1369 | return [a * y[0], a * y[1], a * y[2], a * y[3]];
1370 | }
1371 | }
1372 |
1373 | UPNG.encode.concatRGBA = function (bufs, roundAlpha) {
1374 | var tlen = 0;
1375 | for (var i = 0; i < bufs.length; i++) tlen += bufs[i].byteLength;
1376 | var nimg = new Uint8Array(tlen),
1377 | noff = 0;
1378 | for (var i = 0; i < bufs.length; i++) {
1379 | var img = new Uint8Array(bufs[i]),
1380 | il = img.length;
1381 | for (var j = 0; j < il; j += 4) {
1382 | var r = img[j],
1383 | g = img[j + 1],
1384 | b = img[j + 2],
1385 | a = img[j + 3];
1386 | if (roundAlpha) a = (a & 128) == 0 ? 0 : 255;
1387 | if (a == 0) r = g = b = 0;
1388 | nimg[noff + j] = r;
1389 | nimg[noff + j + 1] = g;
1390 | nimg[noff + j + 2] = b;
1391 | nimg[noff + j + 3] = a;
1392 | }
1393 | noff += il;
1394 | }
1395 | return nimg.buffer;
1396 | }
1397 |
1398 | })(UPNG, pako);
1399 |
1400 | export default UPNG;
--------------------------------------------------------------------------------
/dist/PixiApngAndGif.js:
--------------------------------------------------------------------------------
1 | /*! Project:pixi-apngAndGi, Create:FWS 2018.09.28 15:29, Update:FWS 2020.03.10 09:17 */
2 | !function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):"function"==typeof define&&(define.cmd||define.hjs)?define(function(require,exports,e){e.exports=t()}):e.PixiApngAndGif=t()}(this,function(){"use strict";function e(e){var r=0;if(71!==e[r++]||73!==e[r++]||70!==e[r++]||56!==e[r++]||56!=(e[r++]+1&253)||97!==e[r++])throw new Error("Invalid GIF 87a/89a header.");var a=e[r++]|e[r++]<<8,n=e[r++]|e[r++]<<8,i=e[r++],s=i>>7,o=7&i,l=1<=0))throw Error("Invalid block size");if(0===g)break;r+=g}break;case 249:if(4!==e[r++]||0!==e[r+4])throw new Error("Invalid graphics extension block.");var b=e[r++];_=e[r++]|e[r++]<<8,c=e[r++],0==(1&b)&&(c=null),p=b>>2&7,r++;break;case 254:for(;;){var g=e[r++];if(!(g>=0))throw Error("Invalid block size");if(0===g)break;r+=g}break;default:throw new Error("Unknown graphic control label: 0x"+e[r-1].toString(16))}break;case 44:var w=e[r++]|e[r++]<<8,m=e[r++]|e[r++]<<8,y=e[r++]|e[r++]<<8,k=e[r++]|e[r++]<<8,x=e[r++],z=x>>7,E=x>>6&1,A=7&x,S=1<=0))throw Error("Invalid block size");if(0===g)break;r+=g}u.push({x:w,y:m,width:y,height:k,has_local_palette:B,palette_offset:I,palette_size:R,data_offset:Z,data_length:r-Z,transparent_index:c,interlaced:!!E,delay:_,disposal:p});break;case 59:d=!1;break;default:throw new Error("Unknown gif block: 0x"+e[r-1].toString(16))}this.numFrames=function(){return u.length},this.loopCount=function(){return v},this.frameInfo=function(e){if(e<0||e>=u.length)throw new Error("Frame index out of range.");return u[e]},this.decodeAndBlitFrameBGRA=function(r,n){var i=this.frameInfo(r),s=i.width*i.height,o=new Uint8Array(s);t(e,i.data_offset,o,s);var l=i.palette_offset,f=i.transparent_index;null===f&&(f=256);var h=i.width,d=a-h,u=h,_=4*(i.y*a+i.x),c=4*((i.y+i.height)*a+i.x),p=_,v=4*d;!0===i.interlaced&&(v+=4*a*7);for(var g=8,b=0,w=o.length;b=c&&(v=4*d+4*a*(g-1),p=_+(h+d)*(g<<1),g>>=1)),m===f)p+=4;else{var y=e[l+3*m],k=e[l+3*m+1],x=e[l+3*m+2];n[p++]=x,n[p++]=k,n[p++]=y,n[p++]=255}--u}},this.decodeAndBlitFrameRGBA=function(r,n){var i=this.frameInfo(r),s=i.width*i.height,o=new Uint8Array(s);t(e,i.data_offset,o,s);var l=i.palette_offset,f=i.transparent_index;null===f&&(f=256);var h=i.width,d=a-h,u=h,_=4*(i.y*a+i.x),c=4*((i.y+i.height)*a+i.x),p=_,v=4*d;!0===i.interlaced&&(v+=4*a*7);for(var g=8,b=0,w=o.length;b=c&&(v=4*d+4*a*(g-1),p=_+(h+d)*(g<<1),g>>=1)),m===f)p+=4;else{var y=e[l+3*m],k=e[l+3*m+1],x=e[l+3*m+2];n[p++]=y,n[p++]=k,n[p++]=x,n[p++]=255}--u}}}function t(e,t,r,a){for(var n=e[t++],i=1<>=l,h-=l,v!==i){if(v===s)break;for(var g=vi;)w=c[w]>>8,++b;var m=w;if(u+b+(g!==v?1:0)>a)return void console.log("Warning, gif stream longer than expected.");r[u++]=m,u+=b;var y=u;for(g!==v&&(r[u++]=m),w=g;b--;)w=c[w],r[--y]=255&w,w>>=8;null!==p&&o<4096&&(c[o++]=p<<8|m,o>=f+1&&l<12&&(++l,f=f<<1|1)),p=v}else o=s+1,l=n+1,f=(1<=0;)e[t]=0}function a(e,t,r,a,n){this.static_tree=e,this.extra_bits=t,this.extra_base=r,this.elems=a,this.max_length=n,this.has_stree=e&&e.length}function n(e,t){this.dyn_tree=e,this.max_code=0,this.stat_desc=t}function i(e){return e<256?dt[e]:dt[256+(e>>>7)]}function s(e,t){e.pending_buf[e.pending++]=255&t,e.pending_buf[e.pending++]=t>>>8&255}function o(e,t,r){e.bi_valid>$e-r?(e.bi_buf|=t<>$e-e.bi_valid,e.bi_valid+=r-$e):(e.bi_buf|=t<>>=1,r<<=1}while(--t>0);return r>>>1}function h(e){16===e.bi_valid?(s(e,e.bi_buf),e.bi_buf=0,e.bi_valid=0):e.bi_valid>=8&&(e.pending_buf[e.pending++]=255&e.bi_buf,e.bi_buf>>=8,e.bi_valid-=8)}function d(e,t){var r,a,n,i,s,o,l=t.dyn_tree,f=t.max_code,h=t.stat_desc.static_tree,d=t.stat_desc.has_stree,u=t.stat_desc.extra_bits,_=t.stat_desc.extra_base,c=t.stat_desc.max_length,p=0;for(i=0;i<=Qe;i++)e.bl_count[i]=0;for(l[2*e.heap[e.heap_max]+1]=0,r=e.heap_max+1;rc&&(i=c,p++),l[2*a+1]=i,a>f||(e.bl_count[i]++,s=0,a>=_&&(s=u[a-_]),o=l[2*a],e.opt_len+=o*(i+s),d&&(e.static_len+=o*(h[2*a+1]+s)));if(0!==p){do{for(i=c-1;0===e.bl_count[i];)i--;e.bl_count[i]--,e.bl_count[i+1]+=2,e.bl_count[c]--,p-=2}while(p>0);for(i=c;0!==i;i--)for(a=e.bl_count[i];0!==a;)(n=e.heap[--r])>f||(l[2*n+1]!==i&&(e.opt_len+=(i-l[2*n+1])*l[2*n],l[2*n+1]=i),a--)}}function u(e,t,r){var a,n,i=new Array(Qe+1),s=0;for(a=1;a<=Qe;a++)i[a]=s=s+r[a-1]<<1;for(n=0;n<=t;n++){var o=e[2*n+1];0!==o&&(e[2*n]=f(i[o]++,o))}}function _(){var e,t,r,n,i,s=new Array(Qe+1);for(r=0,n=0;n>=7;n8?s(e,e.bi_buf):e.bi_valid>0&&(e.pending_buf[e.pending++]=e.bi_buf),e.bi_buf=0,e.bi_valid=0}function v(e,t,r,a){p(e),a&&(s(e,r),s(e,~r)),Ce.arraySet(e.pending_buf,e.window,t,r,e.pending),e.pending+=r}function g(e,t,r,a){var n=2*t,i=2*r;return e[n]>1;r>=1;r--)b(e,i,r);n=l;do{r=e.heap[1],e.heap[1]=e.heap[e.heap_len--],b(e,i,1),a=e.heap[1],e.heap[--e.heap_max]=r,e.heap[--e.heap_max]=a,i[2*n]=i[2*r]+i[2*a],e.depth[n]=(e.depth[r]>=e.depth[a]?e.depth[r]:e.depth[a])+1,i[2*r+1]=i[2*a+1]=n,e.heap[1]=n++,b(e,i,1)}while(e.heap_len>=2);e.heap[--e.heap_max]=e.heap[1],d(e,t),u(i,f,e.bl_count)}function y(e,t,r){var a,n,i=-1,s=t[1],o=0,l=7,f=4;for(0===s&&(l=138,f=3),t[2*(r+1)+1]=65535,a=0;a<=r;a++)n=s,s=t[2*(a+1)+1],++o=3&&0===e.bl_tree[2*lt[t]+1];t--);return e.opt_len+=3*(t+1)+5+5+4,t}function z(e,t,r,a){var n;for(o(e,t-257,5),o(e,r-1,5),o(e,a-4,4),n=0;n>>=1)if(1&r&&0!==e.dyn_ltree[2*t])return Me;if(0!==e.dyn_ltree[18]||0!==e.dyn_ltree[20]||0!==e.dyn_ltree[26])return Pe;for(t=32;t0?(e.strm.data_type===He&&(e.strm.data_type=E(e)),m(e,e.l_desc),m(e,e.d_desc),s=x(e),n=e.opt_len+3+7>>>3,(i=e.static_len+3+7>>>3)<=n&&(n=i)):n=i=r+5,r+4<=n&&-1!==t?S(e,t,r,a):e.strategy===Fe||i===n?(o(e,(qe<<1)+(a?1:0),3),w(e,ft,ht)):(o(e,(Ge<<1)+(a?1:0),3),z(e,e.l_desc.max_code+1,e.d_desc.max_code+1,s+1),w(e,e.dyn_ltree,e.dyn_dtree)),c(e),a&&p(e)}function B(e,t,r){return e.pending_buf[e.d_buf+2*e.last_lit]=t>>>8&255,e.pending_buf[e.d_buf+2*e.last_lit+1]=255&t,e.pending_buf[e.l_buf+e.last_lit]=255&r,e.last_lit++,0===t?e.dyn_ltree[2*r]++:(e.matches++,t--,e.dyn_ltree[2*(ut[r]+Xe+1)]++,e.dyn_dtree[2*i(t)]++),e.last_lit===e.lit_bufsize-1}function Z(e,t,r,a){for(var n=65535&e|0,i=e>>>16&65535|0,s=0;0!==r;){s=r>2e3?2e3:r,r-=s;do{n=n+t[a++]|0,i=i+n|0}while(--s);n%=65521,i%=65521}return n|i<<16|0}function U(e,t,r,a){var n=Rt,i=a+r;e^=-1;for(var s=a;s>>8^n[255&(e^t[s])];return-1^e}function T(e,t){return e.msg=Lt[t],t}function N(e){return(e<<1)-(e>4?9:0)}function D(e){for(var t=e.length;--t>=0;)e[t]=0}function O(e){var t=e.state,r=t.pending;r>e.avail_out&&(r=e.avail_out),0!==r&&(Ce.arraySet(e.output,t.pending_buf,t.pending_out,r,e.next_out),e.next_out+=r,t.pending_out+=r,e.total_out+=r,e.avail_out-=r,t.pending-=r,0===t.pending&&(t.pending_out=0))}function L(e,t){Nt._tr_flush_block(e,e.block_start>=0?e.block_start:-1,e.strstart-e.block_start,t),e.block_start=e.strstart,O(e.strm)}function C(e,t){e.pending_buf[e.pending++]=t}function F(e,t){e.pending_buf[e.pending++]=t>>>8&255,e.pending_buf[e.pending++]=255&t}function M(e,t,r,a){var n=e.avail_in;return n>a&&(n=a),0===n?0:(e.avail_in-=n,Ce.arraySet(t,e.input,e.next_in,n,r),1===e.state.wrap?e.adler=Dt(e.adler,t,n,r):2===e.state.wrap&&(e.adler=Ot(e.adler,t,n,r)),e.next_in+=n,e.total_in+=n,n)}function P(e,t){var r,a,n=e.max_chain_length,i=e.strstart,s=e.prev_length,o=e.nice_match,l=e.strstart>e.w_size-ur?e.strstart-(e.w_size-ur):0,f=e.window,h=e.w_mask,d=e.prev,u=e.strstart+dr,_=f[i+s-1],c=f[i+s];e.prev_length>=e.good_match&&(n>>=2),o>e.lookahead&&(o=e.lookahead);do{if(r=t,f[r+s]===c&&f[r+s-1]===_&&f[r]===f[i]&&f[++r]===f[i+1]){i+=2,r++;do{}while(f[++i]===f[++r]&&f[++i]===f[++r]&&f[++i]===f[++r]&&f[++i]===f[++r]&&f[++i]===f[++r]&&f[++i]===f[++r]&&f[++i]===f[++r]&&f[++i]===f[++r]&&is){if(e.match_start=t,s=a,a>=o)break;_=f[i+s-1],c=f[i+s]}}}while((t=d[t&h])>l&&0!=--n);return s<=e.lookahead?s:e.lookahead}function H(e){var t,r,a,n,i,s=e.w_size;do{if(n=e.window_size-e.lookahead-e.strstart,e.strstart>=s+(s-ur)){Ce.arraySet(e.window,e.window,s,s,0),e.match_start-=s,e.strstart-=s,e.block_start-=s,r=e.hash_size,t=r;do{a=e.head[--t],e.head[t]=a>=s?a-s:0}while(--r);r=s,t=r;do{a=e.prev[--t],e.prev[t]=a>=s?a-s:0}while(--r);n+=s}if(0===e.strm.avail_in)break;if(r=M(e.strm,e.window,e.strstart+e.lookahead,n),e.lookahead+=r,e.lookahead+e.insert>=hr)for(i=e.strstart-e.insert,e.ins_h=e.window[i],e.ins_h=(e.ins_h<e.pending_buf_size-5&&(r=e.pending_buf_size-5);;){if(e.lookahead<=1){if(H(e),0===e.lookahead&&t===Ct)return yr;if(0===e.lookahead)break}e.strstart+=e.lookahead,e.lookahead=0;var a=e.block_start+r;if((0===e.strstart||e.strstart>=a)&&(e.lookahead=e.strstart-a,e.strstart=a,L(e,!1),0===e.strm.avail_out))return yr;if(e.strstart-e.block_start>=e.w_size-ur&&(L(e,!1),0===e.strm.avail_out))return yr}return e.insert=0,t===Pt?(L(e,!0),0===e.strm.avail_out?xr:zr):(e.strstart>e.block_start&&(L(e,!1),e.strm.avail_out),yr)}function q(e,t){for(var r,a;;){if(e.lookahead=hr&&(e.ins_h=(e.ins_h<=hr)if(a=Nt._tr_tally(e,e.strstart-e.match_start,e.match_length-hr),e.lookahead-=e.match_length,e.match_length<=e.max_lazy_match&&e.lookahead>=hr){e.match_length--;do{e.strstart++,e.ins_h=(e.ins_h<=hr&&(e.ins_h=(e.ins_h<4096)&&(e.match_length=hr-1)),e.prev_length>=hr&&e.match_length<=e.prev_length){n=e.strstart+e.lookahead-hr,a=Nt._tr_tally(e,e.strstart-1-e.prev_match,e.prev_length-hr),e.lookahead-=e.prev_length-1,e.prev_length-=2;do{++e.strstart<=n&&(e.ins_h=(e.ins_h<=hr&&e.strstart>0&&(n=e.strstart-1,(a=s[n])===s[++n]&&a===s[++n]&&a===s[++n])){i=e.strstart+dr;do{}while(a===s[++n]&&a===s[++n]&&a===s[++n]&&a===s[++n]&&a===s[++n]&&a===s[++n]&&a===s[++n]&&a===s[++n]&&ne.lookahead&&(e.match_length=e.lookahead)}if(e.match_length>=hr?(r=Nt._tr_tally(e,1,e.match_length-hr),e.lookahead-=e.match_length,e.strstart+=e.match_length,e.match_length=0):(r=Nt._tr_tally(e,0,e.window[e.strstart]),e.lookahead--,e.strstart++),r&&(L(e,!1),0===e.strm.avail_out))return yr}return e.insert=0,t===Pt?(L(e,!0),0===e.strm.avail_out?xr:zr):e.last_lit&&(L(e,!1),0===e.strm.avail_out)?yr:kr}function X(e,t){for(var r;;){if(0===e.lookahead&&(H(e),0===e.lookahead)){if(t===Ct)return yr;break}if(e.match_length=0,r=Nt._tr_tally(e,0,e.window[e.strstart]),e.lookahead--,e.strstart++,r&&(L(e,!1),0===e.strm.avail_out))return yr}return e.insert=0,t===Pt?(L(e,!0),0===e.strm.avail_out?xr:zr):e.last_lit&&(L(e,!1),0===e.strm.avail_out)?yr:kr}function Y(e,t,r,a,n){this.good_length=e,this.max_lazy=t,this.nice_length=r,this.max_chain=a,this.func=n}function W(e){e.window_size=2*e.w_size,D(e.head),e.max_lazy_match=bt[e.level].max_lazy,e.good_match=bt[e.level].good_length,e.nice_match=bt[e.level].nice_length,e.max_chain_length=bt[e.level].max_chain,e.strstart=0,e.block_start=0,e.lookahead=0,e.insert=0,e.match_length=e.prev_length=hr-1,e.match_available=0,e.ins_h=0}function V(){this.strm=null,this.status=0,this.pending_buf=null,this.pending_buf_size=0,this.pending_out=0,this.pending=0,this.wrap=0,this.gzhead=null,this.gzindex=0,this.method=tr,this.last_flush=-1,this.w_size=0,this.w_bits=0,this.w_mask=0,this.window=null,this.window_size=0,this.prev=null,this.head=null,this.ins_h=0,this.hash_size=0,this.hash_bits=0,this.hash_mask=0,this.hash_shift=0,this.block_start=0,this.match_length=0,this.prev_match=0,this.match_available=0,this.strstart=0,this.match_start=0,this.lookahead=0,this.prev_length=0,this.max_chain_length=0,this.max_lazy_match=0,this.level=0,this.strategy=0,this.good_match=0,this.nice_match=0,this.dyn_ltree=new Ce.Buf16(2*lr),this.dyn_dtree=new Ce.Buf16(2*(2*sr+1)),this.bl_tree=new Ce.Buf16(2*(2*or+1)),D(this.dyn_ltree),D(this.dyn_dtree),D(this.bl_tree),this.l_desc=null,this.d_desc=null,this.bl_desc=null,this.bl_count=new Ce.Buf16(fr+1),this.heap=new Ce.Buf16(2*ir+1),D(this.heap),this.heap_len=0,this.heap_max=0,this.depth=new Ce.Buf16(2*ir+1),D(this.depth),this.l_buf=0,this.lit_bufsize=0,this.last_lit=0,this.d_buf=0,this.opt_len=0,this.static_len=0,this.matches=0,this.insert=0,this.bi_buf=0,this.bi_valid=0}function J(e){var t;return e&&e.state?(e.total_in=e.total_out=0,e.data_type=er,t=e.state,t.pending=0,t.pending_out=0,t.wrap<0&&(t.wrap=-t.wrap),t.status=t.wrap?cr:wr,e.adler=2===t.wrap?0:1,t.last_flush=Ct,Nt._tr_init(t),jt):T(e,Gt)}function Q(e){var t=J(e);return t===jt&&W(e.state),t}function ee(e,t){return e&&e.state?2!==e.state.wrap?Gt:(e.state.gzhead=t,jt):Gt}function te(e,t,r,a,n,i){if(!e)return Gt;var s=1;if(t===Yt&&(t=6),a<0?(s=0,a=-a):a>15&&(s=2,a-=16),n<1||n>rr||r!==tr||a<8||a>15||t<0||t>9||i<0||i>Qt)return T(e,Gt);8===a&&(a=9);var o=new V;return e.state=o,o.strm=e,o.wrap=s,o.gzhead=null,o.w_bits=a,o.w_size=1<Ht||t<0)return e?T(e,Gt):Gt;if(a=e.state,!e.output||!e.input&&0!==e.avail_in||a.status===mr&&t!==Pt)return T(e,0===e.avail_out?Xt:Gt);if(a.strm=e,r=a.last_flush,a.last_flush=t,a.status===cr)if(2===a.wrap)e.adler=0,C(a,31),C(a,139),C(a,8),a.gzhead?(C(a,(a.gzhead.text?1:0)+(a.gzhead.hcrc?2:0)+(a.gzhead.extra?4:0)+(a.gzhead.name?8:0)+(a.gzhead.comment?16:0)),C(a,255&a.gzhead.time),C(a,a.gzhead.time>>8&255),C(a,a.gzhead.time>>16&255),C(a,a.gzhead.time>>24&255),C(a,9===a.level?2:a.strategy>=Vt||a.level<2?4:0),C(a,255&a.gzhead.os),a.gzhead.extra&&a.gzhead.extra.length&&(C(a,255&a.gzhead.extra.length),C(a,a.gzhead.extra.length>>8&255)),a.gzhead.hcrc&&(e.adler=Ot(e.adler,a.pending_buf,a.pending,0)),a.gzindex=0,a.status=pr):(C(a,0),C(a,0),C(a,0),C(a,0),C(a,0),C(a,9===a.level?2:a.strategy>=Vt||a.level<2?4:0),C(a,Er),a.status=wr);else{var s=tr+(a.w_bits-8<<4)<<8,o=-1;o=a.strategy>=Vt||a.level<2?0:a.level<6?1:6===a.level?2:3,s|=o<<6,0!==a.strstart&&(s|=_r),s+=31-s%31,a.status=wr,F(a,s),0!==a.strstart&&(F(a,e.adler>>>16),F(a,65535&e.adler)),e.adler=1}if(a.status===pr)if(a.gzhead.extra){for(n=a.pending;a.gzindex<(65535&a.gzhead.extra.length)&&(a.pending!==a.pending_buf_size||(a.gzhead.hcrc&&a.pending>n&&(e.adler=Ot(e.adler,a.pending_buf,a.pending-n,n)),O(e),n=a.pending,a.pending!==a.pending_buf_size));)C(a,255&a.gzhead.extra[a.gzindex]),a.gzindex++;a.gzhead.hcrc&&a.pending>n&&(e.adler=Ot(e.adler,a.pending_buf,a.pending-n,n)),a.gzindex===a.gzhead.extra.length&&(a.gzindex=0,a.status=vr)}else a.status=vr;if(a.status===vr)if(a.gzhead.name){n=a.pending;do{if(a.pending===a.pending_buf_size&&(a.gzhead.hcrc&&a.pending>n&&(e.adler=Ot(e.adler,a.pending_buf,a.pending-n,n)),O(e),n=a.pending,a.pending===a.pending_buf_size)){i=1;break}i=a.gzindexn&&(e.adler=Ot(e.adler,a.pending_buf,a.pending-n,n)),0===i&&(a.gzindex=0,a.status=gr)}else a.status=gr;if(a.status===gr)if(a.gzhead.comment){n=a.pending;do{if(a.pending===a.pending_buf_size&&(a.gzhead.hcrc&&a.pending>n&&(e.adler=Ot(e.adler,a.pending_buf,a.pending-n,n)),O(e),n=a.pending,a.pending===a.pending_buf_size)){i=1;break}i=a.gzindexn&&(e.adler=Ot(e.adler,a.pending_buf,a.pending-n,n)),0===i&&(a.status=br)}else a.status=br;if(a.status===br&&(a.gzhead.hcrc?(a.pending+2>a.pending_buf_size&&O(e),a.pending+2<=a.pending_buf_size&&(C(a,255&e.adler),C(a,e.adler>>8&255),e.adler=0,a.status=wr)):a.status=wr),0!==a.pending){if(O(e),0===e.avail_out)return a.last_flush=-1,jt}else if(0===e.avail_in&&N(t)<=N(r)&&t!==Pt)return T(e,Xt);if(a.status===mr&&0!==e.avail_in)return T(e,Xt);if(0!==e.avail_in||0!==a.lookahead||t!==Ct&&a.status!==mr){var l=a.strategy===Vt?X(a,t):a.strategy===Jt?K(a,t):bt[a.level].func(a,t);if(l!==xr&&l!==zr||(a.status=mr),l===yr||l===xr)return 0===e.avail_out&&(a.last_flush=-1),jt;if(l===kr&&(t===Ft?Nt._tr_align(a):t!==Ht&&(Nt._tr_stored_block(a,0,0,!1),t===Mt&&(D(a.head),0===a.lookahead&&(a.strstart=0,a.block_start=0,a.insert=0))),O(e),0===e.avail_out))return a.last_flush=-1,jt}return t!==Pt?jt:a.wrap<=0?qt:(2===a.wrap?(C(a,255&e.adler),C(a,e.adler>>8&255),C(a,e.adler>>16&255),C(a,e.adler>>24&255),C(a,255&e.total_in),C(a,e.total_in>>8&255),C(a,e.total_in>>16&255),C(a,e.total_in>>24&255)):(F(a,e.adler>>>16),F(a,65535&e.adler)),O(e),a.wrap>0&&(a.wrap=-a.wrap),0!==a.pending?jt:qt)}function ne(e){var t;return e&&e.state?(t=e.state.status)!==cr&&t!==pr&&t!==vr&&t!==gr&&t!==br&&t!==wr&&t!==mr?T(e,Gt):(e.state=null,t===wr?T(e,Kt):jt):Gt}function ie(e,t){var r,a,n,i,s,o,l,f,h=t.length;if(!e||!e.state)return Gt;if(r=e.state,2===(i=r.wrap)||1===i&&r.status!==cr||r.lookahead)return Gt;for(1===i&&(e.adler=Dt(e.adler,t,h,0)),r.wrap=0,h>=r.w_size&&(0===i&&(D(r.head),r.strstart=0,r.block_start=0,r.insert=0),f=new Ce.Buf8(r.w_size),Ce.arraySet(f,t,h-r.w_size,r.w_size,0),t=f,h=r.w_size),s=e.avail_in,o=e.next_in,l=e.input,e.avail_in=h,e.next_in=0,e.input=t,H(r);r.lookahead>=hr;){a=r.strstart,n=r.lookahead-(hr-1);do{r.ins_h=(r.ins_h<0?t.windowBits=-t.windowBits:t.gzip&&t.windowBits>0&&t.windowBits<16&&(t.windowBits+=16),this.err=0,this.msg="",this.ended=!1,this.chunks=[],this.strm=new Qr,this.strm.avail_out=0;var r=Vr.deflateInit2(this.strm,t.level,t.method,t.windowBits,t.memLevel,t.strategy);if(r!==ea)throw new Error(Lt[r]);if(t.header&&Vr.deflateSetHeader(this.strm,t.header),t.dictionary){var a;if(a="string"==typeof t.dictionary?Jr.string2buf(t.dictionary):"[object ArrayBuffer]"===$r.call(t.dictionary)?new Uint8Array(t.dictionary):t.dictionary,(r=Vr.deflateSetDictionary(this.strm,a))!==ea)throw new Error(Lt[r]);this._dict_set=!0}}function fe(e,t){var r=new le(t);if(r.push(e,!0),r.err)throw r.msg||Lt[r.err];return r.result}function he(e,t){return t=t||{},t.raw=!0,fe(e,t)}function de(e,t){return t=t||{},t.gzip=!0,fe(e,t)}function ue(e){return(e>>>24&255)+(e>>>8&65280)+((65280&e)<<8)+((255&e)<<24)}function _e(){this.mode=0,this.last=!1,this.wrap=0,this.havedict=!1,this.flags=0,this.dmax=0,this.check=0,this.total=0,this.head=null,this.wbits=0,this.wsize=0,this.whave=0,this.wnext=0,this.window=null,this.hold=0,this.bits=0,this.length=0,this.offset=0,this.extra=0,this.lencode=null,this.distcode=null,this.lenbits=0,this.distbits=0,this.ncode=0,this.nlen=0,this.ndist=0,this.have=0,this.next=null,this.lens=new Ce.Buf16(320),this.work=new Ce.Buf16(288),this.lendyn=null,this.distdyn=null,this.sane=0,this.back=0,this.was=0}function ce(e){var t;return e&&e.state?(t=e.state,e.total_in=e.total_out=t.total=0,e.msg="",t.wrap&&(e.adler=1&t.wrap),t.mode=Oa,t.last=0,t.havedict=0,t.dmax=32768,t.head=null,t.hold=0,t.bits=0,t.lencode=t.lendyn=new Ce.Buf32(pn),t.distcode=t.distdyn=new Ce.Buf32(vn),t.sane=1,t.back=-1,Ia):Za}function pe(e){var t;return e&&e.state?(t=e.state,t.wsize=0,t.whave=0,t.wnext=0,ce(e)):Za}function ve(e,t){var r,a;return e&&e.state?(a=e.state,t<0?(r=0,t=-t):(r=1+(t>>4),t<48&&(t&=15)),t&&(t<8||t>15)?Za:(null!==a.window&&a.wbits!==t&&(a.window=null),a.wrap=r,a.wbits=t,pe(e))):Za}function ge(e,t){var r,a;return e?(a=new _e,e.state=a,a.window=null,r=ve(e,t),r!==Ia&&(e.state=null),r):Za}function be(e){return ge(e,gn)}function we(e){if(bn){var t;for(na=new Ce.Buf32(512),ia=new Ce.Buf32(32),t=0;t<144;)e.lens[t++]=8;for(;t<256;)e.lens[t++]=9;for(;t<280;)e.lens[t++]=7;for(;t<288;)e.lens[t++]=8;for(ya(xa,e.lens,0,288,na,0,e.work,{bits:9}),t=0;t<32;)e.lens[t++]=5;ya(za,e.lens,0,32,ia,0,e.work,{bits:5}),bn=!1}e.lencode=na,e.lenbits=9,e.distcode=ia,e.distbits=5}function me(e,t,r,a){var n,i=e.state;return null===i.window&&(i.wsize=1<=i.wsize?(Ce.arraySet(i.window,t,r-i.wsize,i.wsize,0),i.wnext=0,i.whave=i.wsize):(n=i.wsize-i.wnext,n>a&&(n=a),Ce.arraySet(i.window,t,r-a,n,i.wnext),a-=n,a?(Ce.arraySet(i.window,t,r-a,a,0),i.wnext=a,i.whave=i.wsize):(i.wnext+=n,i.wnext===i.wsize&&(i.wnext=0),i.whave>>8&255,r.check=Ot(r.check,S,2,0),f=0,h=0,r.mode=La;break}if(r.flags=0,r.head&&(r.head.done=!1),!(1&r.wrap)||(((255&f)<<8)+(f>>8))%31){e.msg="incorrect header check",r.mode=un;break}if((15&f)!==Da){e.msg="unknown compression method",r.mode=un;break}if(f>>>=4,h-=4,k=8+(15&f),0===r.wbits)r.wbits=k;else if(k>r.wbits){e.msg="invalid window size",r.mode=un;break}r.dmax=1<>8&1),512&r.flags&&(S[0]=255&f,S[1]=f>>>8&255,r.check=Ot(r.check,S,2,0)),f=0,h=0,r.mode=Ca;case Ca:for(;h<32;){if(0===o)break e;o--,f+=a[i++]<>>8&255,S[2]=f>>>16&255,S[3]=f>>>24&255,r.check=Ot(r.check,S,4,0)),f=0,h=0,r.mode=Fa;case Fa:for(;h<16;){if(0===o)break e;o--,f+=a[i++]<>8),512&r.flags&&(S[0]=255&f,S[1]=f>>>8&255,r.check=Ot(r.check,S,2,0)),f=0,h=0,r.mode=Ma;case Ma:if(1024&r.flags){for(;h<16;){if(0===o)break e;o--,f+=a[i++]<>>8&255,r.check=Ot(r.check,S,2,0)),f=0,h=0}else r.head&&(r.head.extra=null);r.mode=Pa;case Pa:if(1024&r.flags&&(_=r.length,_>o&&(_=o),_&&(r.head&&(k=r.head.extra_len-r.length,r.head.extra||(r.head.extra=new Array(r.head.extra_len)),Ce.arraySet(r.head.extra,a,i,_,k)),512&r.flags&&(r.check=Ot(r.check,a,_,i)),o-=_,i+=_,r.length-=_),r.length))break e;r.length=0,r.mode=Ha;case Ha:if(2048&r.flags){if(0===o)break e;_=0;do{k=a[i+_++],r.head&&k&&r.length<65536&&(r.head.name+=String.fromCharCode(k))}while(k&&_>9&1,r.head.done=!0),e.adler=r.check=0,r.mode=Xa;break;case Ga:for(;h<32;){if(0===o)break e;o--,f+=a[i++]<>>=7&h,h-=7&h,r.mode=fn;break}for(;h<3;){if(0===o)break e;o--,f+=a[i++]<>>=1,h-=1,3&f){case 0:r.mode=Wa;break;case 1:if(we(r),r.mode=tn,t===Sa){f>>>=2,h-=2;break e}break;case 2:r.mode=Qa;break;case 3:e.msg="invalid block type",r.mode=un}f>>>=2,h-=2;break;case Wa:for(f>>>=7&h,h-=7&h;h<32;){if(0===o)break e;o--,f+=a[i++]<>>16^65535)){e.msg="invalid stored block lengths",r.mode=un;break}if(r.length=65535&f,f=0,h=0,r.mode=Va,t===Sa)break e;case Va:r.mode=Ja;case Ja:if(_=r.length){if(_>o&&(_=o),_>l&&(_=l),0===_)break e;Ce.arraySet(n,a,i,_,s),o-=_,i+=_,l-=_,s+=_,r.length-=_;break}r.mode=Xa;break;case Qa:for(;h<14;){if(0===o)break e;o--,f+=a[i++]<>>=5,h-=5,r.ndist=1+(31&f),f>>>=5,h-=5,r.ncode=4+(15&f),f>>>=4,h-=4,r.nlen>286||r.ndist>30){e.msg="too many length or distance symbols",r.mode=un;break}r.have=0,r.mode=$a;case $a:for(;r.have>>=3,h-=3}for(;r.have<19;)r.lens[I[r.have++]]=0;if(r.lencode=r.lendyn,r.lenbits=7,z={bits:r.lenbits},x=ya(ka,r.lens,0,19,r.lencode,0,r.work,z),r.lenbits=z.bits,x){e.msg="invalid code lengths set",r.mode=un;break}r.have=0,r.mode=en;case en:for(;r.have>>24,g=A>>>16&255,b=65535&A,!(v<=h);){if(0===o)break 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p=u[c],v=_[c],g=0,b=0,w=h[c];w>3];A=A>>7-(7&E)&1,l[x*o+(z>>3)]|=A<<7-((3&z)<<0)}if(2==i){var A=t[E>>3];A=A>>6-(7&E)&3,l[x*o+(z>>2)]|=A<<6-((3&z)<<1)}if(4==i){var A=t[E>>3];A=A>>4-(7&E)&15,l[x*o+(z>>1)]|=A<<4-((1&z)<<2)}if(i>=8)for(var S=x*o+z*s,I=0;I>3)+I];E+=i,z+=v}k++,x+=p}g*b!=0&&(f+=b*(1+y)),c+=1}return l},e.decode._getBPP=function(e){return[1,null,3,1,2,null,4][e.ctype]*e.depth},e.decode._filterZero=function(t,r,a,n,i){var s=e.decode._getBPP(r),o=Math.ceil(n*s/8),l=e.decode._paeth;s=Math.ceil(s/8);for(var f=0;f>1)&255;if(4==u)for(var _=s;_>1)&255;for(var _=s;_>1)&255}if(4==u){for(var _=0;_>8&255,e[t+1]=255&r},readUint:function(e,t){return 16777216*e[t]+(e[t+1]<<16|e[t+2]<<8|e[t+3])},writeUint:function(e,t,r){e[t]=r>>24&255,e[t+1]=r>>16&255,e[t+2]=r>>8&255,e[t+3]=255&r},readASCII:function(e,t,r){for(var a="",n=0;n=0&&o>=0?(d=_*t+c<<2,u=(o+_)*n+s+c<<2):(d=(-o+_)*t-s+c<<2,u=_*n+c<<2),0==l)a[u]=e[d],a[u+1]=e[d+1],a[u+2]=e[d+2],a[u+3]=e[d+3];else if(1==l){var p=e[d+3]*(1/255),v=e[d]*p,g=e[d+1]*p,b=e[d+2]*p,w=a[u+3]*(1/255),m=a[u]*w,y=a[u+1]*w,k=a[u+2]*w,x=1-p,z=p+w*x,E=0==z?0:1/z;a[u+3]=255*z,a[u+0]=(v+m*x)*E,a[u+1]=(g+y*x)*E,a[u+2]=(b+k*x)*E}else if(2==l){var p=e[d+3],v=e[d],g=e[d+1],b=e[d+2],w=a[u+3],m=a[u],y=a[u+1],k=a[u+2];p==w&&v==m&&g==y&&b==k?(a[u]=0,a[u+1]=0,a[u+2]=0,a[u+3]=0):(a[u]=v,a[u+1]=g,a[u+2]=b,a[u+3]=p)}else if(3==l){var p=e[d+3],v=e[d],g=e[d+1],b=e[d+2],w=a[u+3],m=a[u],y=a[u+1],k=a[u+2];if(p==w&&v==m&&g==y&&b==k)continue;if(p<220&&w>20)return!1}return!0},e.encode=function(t,r,a,n,i,s){null==n&&(n=0),null==s&&(s=!1);var o=e.encode.compress(t,r,a,n,!1,s);return e.encode.compressPNG(o,-1),e.encode._main(o,r,a,i)},e.encodeLL=function(t,r,a,n,i,s,o){for(var l={ctype:0+(1==n?0:2)+(0==i?0:4),depth:s,frames:[]},f=(n+i)*s,h=f*r,d=0;d1,d=!1,u=46+(h?20:0);if(3==t.ctype){for(var _=t.plte.length,c=0;c<_;c++)t.plte[c]>>>24!=255&&(d=!0);u+=8+3*_+4+(d?8+1*_+4:0)}for(var p=0;p>>8&255,x=m>>>16&255;g[f+w+0]=y,g[f+w+1]=k,g[f+w+2]=x}if(f+=3*_,s(g,f,i(g,f-3*_-4,3*_+4)),f+=4,d){s(g,f,_),f+=4,l(g,f,"tRNS"),f+=4;for(var c=0;c<_;c++)g[f+c]=t.plte[c]>>>24&255;f+=_,s(g,f,i(g,f-_-4,_+4)),f+=4}}for(var z=0,p=0;p>2,A>>2));for(var h=0;hR&&Z==I[_-R])B[_]=B[_-R];else{var U=g[Z];if(null==U&&(g[Z]=U=b.length,b.push(Z),b.length>=300))break;B[_]=U}}}var T=b.length;T<=256&&0==s&&(l=T<=2?1:T<=4?2:T<=16?4:8,i&&(l=8));for(var h=0;h>1)]|=F[P+H]<<4-4*(1&H);else if(2==l)for(var H=0;H>2)]|=F[P+H]<<6-2*(3&H);else if(1==l)for(var H=0;H>3)]|=F[P+H]<<7-1*(7&H)}D=C,o=3,L=1}else if(0==c&&1==v.length){for(var C=new Uint8Array(R*N*3),j=R*N,_=0;_x&&(x=A),Ez&&(z=E))}var I=-1==x?1:(x-y+1)*(z-k+1);I5e5)||2!=h&&3!=h&&4!=h){for(var l=0;l>1)+256&255;if(4==s)for(var h=i;h>1)&255;for(var h=i;h>1)&255}if(4==s){for(var h=0;h>>1:r>>>=1;e[t]=r}return e}(),update:function(t,r,a,n){for(var i=0;i>>8;return t},crc:function(t,r,a){return 4294967295^e.crc.update(4294967295,t,r,a)}},e.quantize=function(t,r){for(var a=new Uint8Array(t),n=a.slice(0),i=new Uint32Array(n.buffer),s=e.quantize.getKDtree(n,r),o=s[0],l=s[1],f=(e.quantize.planeDst,a),h=i,d=f.length,u=new Uint8Array(a.length>>2),_=0;_>2]=b.ind,h[_>>2]=b.est.rgba}return{abuf:n.buffer,inds:u,plte:l}},e.quantize.getKDtree=function(t,r,a){null==a&&(a=1e-4);var n=new Uint32Array(t.buffer),i={i0:0,i1:t.length,bst:null,est:null,tdst:0,left:null,right:null};i.bst=e.quantize.stats(t,i.i0,i.i1),i.est=e.quantize.estats(i.bst);for(var s=[i];s.lengtho&&(o=s[f].est.L,l=f);if(o=d||h.i1<=d)h.est.L=0;else{var u={i0:h.i0,i1:d,bst:null,est:null,tdst:0,left:null,right:null};u.bst=e.quantize.stats(t,u.i0,u.i1),u.est=e.quantize.estats(u.bst);var _={i0:d,i1:h.i1,bst:null,est:null,tdst:0,left:null,right:null};_.bst={R:[],m:[],N:h.bst.N-u.bst.N};for(var f=0;f<16;f++)_.bst.R[f]=h.bst.R[f]-u.bst.R[f];for(var f=0;f<4;f++)_.bst.m[f]=h.bst.m[f]-u.bst.m[f];_.est=e.quantize.estats(_.bst),h.left=u,h.right=_,s[l]=u,s.push(_)}}s.sort(function(e,t){return t.bst.N-e.bst.N});for(var f=0;f0&&(o=t.right,l=t.left);var f=e.quantize.getNearest(o,r,a,n,i);if(f.tdst<=s*s)return f;var h=e.quantize.getNearest(l,r,a,n,i);return h.tdsts;)n-=4;if(a>=n)break;var l=r[a>>2];r[a>>2]=r[n>>2],r[n>>2]=l,a+=4,n-=4}for(;o(t,a,i)>s;)a-=4;return a+4},e.quantize.vecDot=function(e,t,r){return e[t]*r[0]+e[t+1]*r[1]+e[t+2]*r[2]+e[t+3]*r[3]},e.quantize.stats=function(e,t,r){for(var a=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0],n=[0,0,0,0],i=r-t>>2,s=t;s>>0}},e.M4={multVec:function(e,t){return[e[0]*t[0]+e[1]*t[1]+e[2]*t[2]+e[3]*t[3],e[4]*t[0]+e[5]*t[1]+e[6]*t[2]+e[7]*t[3],e[8]*t[0]+e[9]*t[1]+e[10]*t[2]+e[11]*t[3],e[12]*t[0]+e[13]*t[1]+e[14]*t[2]+e[15]*t[3]]},dot:function(e,t){return e[0]*t[0]+e[1]*t[1]+e[2]*t[2]+e[3]*t[3]},sml:function(e,t){return[e*t[0],e*t[1],e*t[2],e*t[3]]}},e.encode.concatRGBA=function(e,t){for(var r=0,a=0;ar.framesDelay[a.frame]&&(a.frame++,a.status="playing",a.frame>r.textures.length-1&&(a.frame=0,a.loops++,r.temp.loop>0&&a.loops>=r.temp.loop&&("function"==typeof t&&t(a),a.status="played",r.runEvent("played",a),r.stop())),r.sprite.texture=r.textures[a.frame],i=0,r.runEvent("playing",a))}),r.temp.tickerIsAdd=!0),r.ticker.start()}},t.prototype.pause=function(){var e=this,t=e.__status;e.ticker.stop(),t.status="pause",e.runEvent("pause",t)},t.prototype.stop=function(){var e=this,t=e.__status;e.ticker.stop(),t.status="stop",e.runEvent("stop",t)},t.prototype.jumpToFrame=function(e){var t=this,r=t.textures;if(!r.length)throw new Error("没有可用的textures");var a=t.__status;"number"==typeof(e=e<0?0:e>r.length-1?r.length-1:e)&&(t.sprite.texture=r[e],a.frame=e)},t.prototype.getDuration=function(){var e=this,t=e.framesDelay;if(!t.length)throw new Error("未找到图片帧时间");for(var r=0,a=0,n=t.length;a