зеркало из https://github.com/mozilla/gecko-dev.git
471 строка
14 KiB
JavaScript
471 строка
14 KiB
JavaScript
/*
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* Test for APNG encoding in libpr0n
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*
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*/
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const Ci = Components.interfaces;
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const Cc = Components.classes;
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// dispose=[none|background|previous]
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// blend=[source|over]
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var apng1A = {
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// A 3x3 image with 3 frames, alternating red, green, blue. RGB format.
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width : 3, height : 3, skipFirstFrame : false,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGB,
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transparency : null,
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plays : 0,
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frames : [
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{ // frame #1
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGB, stride : 9,
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transparency : null,
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pixels : [
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255,0,0, 255,0,0, 255,0,0,
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255,0,0, 255,0,0, 255,0,0,
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255,0,0, 255,0,0, 255,0,0
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]
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},
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{ // frame #2
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGB, stride : 9,
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transparency : null,
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pixels : [
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0,255,0, 0,255,0, 0,255,0,
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0,255,0, 0,255,0, 0,255,0,
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0,255,0, 0,255,0, 0,255,0
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]
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},
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{ // frame #3
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGB, stride : 9,
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transparency : null,
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pixels : [
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0,0,255, 0,0,255, 0,0,255,
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0,0,255, 0,0,255, 0,0,255,
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0,0,255, 0,0,255, 0,0,255
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]
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}
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],
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expected : "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAIAAADZSiLoAAAACGFjVEwAAAADAAAAAM7tusAAAAAaZmNUTAAAAAAAAAADAAAAAwAAAAAAAAAAAfQD6AAAdRYgGAAAABBJREFUCJlj+M/AAEEMWFgAj44I+H2CySsAAAAaZmNUTAAAAAEAAAADAAAAAwAAAAAAAAAAAfQD6AAA7mXKzAAAABNmZEFUAAAAAgiZY2D4zwBFWFgAhpcI+I731VcAAAAaZmNUTAAAAAMAAAADAAAAAwAAAAAAAAAAAfQD6AAAA/MZJQAAABNmZEFUAAAABAiZY2Bg+A9DmCwAfaAI+AGmQVoAAAAASUVORK5CYII="
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};
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var apng1B = {
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// A 3x3 image with 3 frames, alternating red, green, blue. RGBA format.
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width : 3, height : 3, skipFirstFrame : false,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA,
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transparency : null,
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plays : 0,
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frames : [
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{ // frame #1
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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255,0,0,255, 255,0,0,255, 255,0,0,255,
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255,0,0,255, 255,0,0,255, 255,0,0,255,
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255,0,0,255, 255,0,0,255, 255,0,0,255
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]
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},
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{ // frame #2
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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0,255,0,255, 0,255,0,255, 0,255,0,255,
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0,255,0,255, 0,255,0,255, 0,255,0,255,
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0,255,0,255, 0,255,0,255, 0,255,0,255
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]
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},
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{ // frame #3
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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0,0,255,255, 0,0,255,255, 0,0,255,255,
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0,0,255,255, 0,0,255,255, 0,0,255,255,
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0,0,255,255, 0,0,255,255, 0,0,255,255
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]
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}
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],
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expected : "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAYAAABWKLW/AAAACGFjVEwAAAADAAAAAM7tusAAAAAaZmNUTAAAAAAAAAADAAAAAwAAAAAAAAAAAfQD6AAAdRYgGAAAABFJREFUCJlj+M/A8B+GGXByAF3XEe/CoiJ1AAAAGmZjVEwAAAABAAAAAwAAAAMAAAAAAAAAAAH0A+gAAO5lyswAAAASZmRBVAAAAAIImWNg+I8EcXIAVOAR77Vyl9QAAAAaZmNUTAAAAAMAAAADAAAAAwAAAAAAAAAAAfQD6AAAA/MZJQAAABRmZEFUAAAABAiZY2Bg+P8fgXFxAEvpEe8rClxSAAAAAElFTkSuQmCC"
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};
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var apng1C = {
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// A 3x3 image with 3 frames, alternating red, green, blue. RGBA format.
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// The first frame is skipped, so it will only flash green/blue (or static red in an APNG-unaware viewer)
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width : 3, height : 3, skipFirstFrame : true,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA,
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transparency : null,
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plays : 0,
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frames : [
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{ // frame #1
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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255,0,0,255, 255,0,0,255, 255,0,0,255,
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255,0,0,255, 255,0,0,255, 255,0,0,255,
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255,0,0,255, 255,0,0,255, 255,0,0,255
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]
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},
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{ // frame #2
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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0,255,0,255, 0,255,0,255, 0,255,0,255,
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0,255,0,255, 0,255,0,255, 0,255,0,255,
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0,255,0,255, 0,255,0,255, 0,255,0,255
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]
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},
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{ // frame #3
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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0,0,255,255, 0,0,255,255, 0,0,255,255,
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0,0,255,255, 0,0,255,255, 0,0,255,255,
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0,0,255,255, 0,0,255,255, 0,0,255,255
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]
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}
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],
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expected : "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAYAAABWKLW/AAAACGFjVEwAAAACAAAAAPONk3AAAAARSURBVAiZY/jPwPAfhhlwcgBd1xHvwqIidQAAABpmY1RMAAAAAAAAAAMAAAADAAAAAAAAAAAB9APoAAB1FiAYAAAAEmZkQVQAAAABCJljYPiPBHFyAFTgEe+kD/2tAAAAGmZjVEwAAAACAAAAAwAAAAMAAAAAAAAAAAH0A+gAAJiA8/EAAAAUZmRBVAAAAAMImWNgYPj/H4FxcQBL6RHvC5ggGQAAAABJRU5ErkJggg=="
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};
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var apng2A = {
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// A 3x3 image with 3 frames, alternating red, green, blue. RGBA format.
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// blend = over mode
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// (The green frame is a horizontal gradient, and the blue frame is a
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// vertical gradient. They stack as they animate.)
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width : 3, height : 3, skipFirstFrame : false,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA,
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transparency : null,
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plays : 0,
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frames : [
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{ // frame #1
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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255,0,0,255, 255,0,0,255, 255,0,0,255,
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255,0,0,255, 255,0,0,255, 255,0,0,255,
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255,0,0,255, 255,0,0,255, 255,0,0,255
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]
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},
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{ // frame #2
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "over", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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0,255,0,255, 0,255,0,180, 0,255,0,75,
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0,255,0,255, 0,255,0,180, 0,255,0,75,
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0,255,0,255, 0,255,0,180, 0,255,0,75
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]
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},
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{ // frame #3
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "over", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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0,0,255,75, 0,0,255,75, 0,0,255,75,
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0,0,255,180, 0,0,255,180, 0,0,255,180,
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0,0,255,255, 0,0,255,255, 0,0,255,255
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]
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}
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],
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expected : "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAYAAABWKLW/AAAACGFjVEwAAAADAAAAAM7tusAAAAAaZmNUTAAAAAAAAAADAAAAAwAAAAAAAAAAAfQD6AAAdRYgGAAAABFJREFUCJlj+M/A8B+GGXByAF3XEe/CoiJ1AAAAGmZjVEwAAAABAAAAAwAAAAMAAAAAAAAAAAH0A+gAAZli+loAAAAcZmRBVAAAAAIImWNg+M/wn+E/wxaG/wzeDDg5ACeGDvKVa3pyAAAAGmZjVEwAAAADAAAAAwAAAAMAAAAAAAAAAAH0A+gAAXT0KbMAAAAcZmRBVAAAAAQImWNgYPjvjcAM/7cgMMP//zAMAPqkDvLn1m3SAAAAAElFTkSuQmCC"
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};
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var apng2B = {
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// A 3x3 image with 3 frames, alternating red, green, blue. RGBA format.
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// blend = over, dispose = background
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// (The green frame is a horizontal gradient, and the blue frame is a
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// vertical gradient. Each frame is displayed individually, blended to
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// whatever the background is.)
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width : 3, height : 3, skipFirstFrame : false,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA,
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transparency : null,
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plays : 0,
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frames : [
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{ // frame #1
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "background", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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255,0,0,255, 255,0,0,255, 255,0,0,255,
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255,0,0,255, 255,0,0,255, 255,0,0,255,
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255,0,0,255, 255,0,0,255, 255,0,0,255
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]
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},
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{ // frame #2
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "background", blend : "over", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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0,255,0,255, 0,255,0,180, 0,255,0,75,
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0,255,0,255, 0,255,0,180, 0,255,0,75,
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0,255,0,255, 0,255,0,180, 0,255,0,75
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]
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},
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{ // frame #3
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "background", blend : "over", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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0,0,255,75, 0,0,255,75, 0,0,255,75,
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0,0,255,180, 0,0,255,180, 0,0,255,180,
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0,0,255,255, 0,0,255,255, 0,0,255,255
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]
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}
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],
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expected : "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAYAAABWKLW/AAAACGFjVEwAAAADAAAAAM7tusAAAAAaZmNUTAAAAAAAAAADAAAAAwAAAAAAAAAAAfQD6AEAbA0RWQAAABFJREFUCJlj+M/A8B+GGXByAF3XEe/CoiJ1AAAAGmZjVEwAAAABAAAAAwAAAAMAAAAAAAAAAAH0A+gBAYB5yxsAAAAcZmRBVAAAAAIImWNg+M/wn+E/wxaG/wzeDDg5ACeGDvKVa3pyAAAAGmZjVEwAAAADAAAAAwAAAAMAAAAAAAAAAAH0A+gBAW3vGPIAAAAcZmRBVAAAAAQImWNgYPjvjcAM/7cgMMP//zAMAPqkDvLn1m3SAAAAAElFTkSuQmCC"
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};
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var apng3 = {
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// A 3x3 image with 4 frames. First frame is white, then 1x1 frames draw a diagonal line
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width : 3, height : 3, skipFirstFrame : false,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA,
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transparency : null,
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plays : 0,
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frames : [
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{ // frame #1
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width : 3, height : 3,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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255,255,255,255, 255,255,255,255, 255,255,255,255,
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255,255,255,255, 255,255,255,255, 255,255,255,255,
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255,255,255,255, 255,255,255,255, 255,255,255,255
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]
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},
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{ // frame #2
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width : 1, height : 1,
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x_offset : 0, y_offset : 0,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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0,0,0,255
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]
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},
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{ // frame #3
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width : 1, height : 1,
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x_offset : 1, y_offset : 1,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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0,0,0,255
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]
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},
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{ // frame #4
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width : 1, height : 1,
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x_offset : 2, y_offset : 2,
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dispose : "none", blend : "source", delay : 500,
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format : Ci.imgIEncoder.INPUT_FORMAT_RGBA, stride : 12,
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pixels : [
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0,0,0,255
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]
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}
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],
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expected : "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAMAAAADCAYAAABWKLW/AAAACGFjVEwAAAAEAAAAAHzNZtAAAAAaZmNUTAAAAAAAAAADAAAAAwAAAAAAAAAAAfQD6AAAdRYgGAAAAA5JREFUCJlj+I8EGHByALuHI91kueRqAAAAGmZjVEwAAAABAAAAAQAAAAEAAAAAAAAAAAH0A+gAADJXfawAAAARZmRBVAAAAAIImWNgYGD4DwABBAEAbr5mpgAAABpmY1RMAAAAAwAAAAEAAAABAAAAAQAAAAEB9APoAAC4OHoxAAAAEWZkQVQAAAAECJljYGBg+A8AAQQBAJZ8LRAAAAAaZmNUTAAAAAUAAAABAAAAAQAAAAIAAAACAfQD6AAA/fh01wAAABFmZEFUAAAABgiZY2BgYPgPAAEEAQB3Eum9AAAAAElFTkSuQmCC"
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};
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// Main test entry point.
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function run_test() {
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dump("Checking apng1A...\n");
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run_test_for(apng1A);
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dump("Checking apng1B...\n");
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run_test_for(apng1B);
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dump("Checking apng1C...\n");
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run_test_for(apng1C);
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dump("Checking apng2A...\n");
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run_test_for(apng2A);
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dump("Checking apng2B...\n");
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run_test_for(apng2B);
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dump("Checking apng3...\n");
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run_test_for(apng3);
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};
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function run_test_for(input) {
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var encoder, dataURL;
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encoder = encodeImage(input);
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dataURL = makeDataURL(encoder, "image/png");
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do_check_eq(dataURL, input.expected);
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};
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function encodeImage(input) {
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var encoder = Cc["@mozilla.org/image/encoder;2?type=image/png"].createInstance();
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encoder.QueryInterface(Ci.imgIEncoder);
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var options = "";
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if (input.transparency) { options += "transparency=" + input.transparency; }
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options += ";frames=" + input.frames.length;
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options += ";skipfirstframe=" + (input.skipFirstFrame ? "yes" : "no");
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options += ";plays=" + input.plays;
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encoder.startImageEncode(input.width, input.height, input.format, options);
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for (var i = 0; i < input.frames.length; i++) {
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var frame = input.frames[i];
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options = "";
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if (frame.transparency) { options += "transparency=" + input.transparency; }
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options += ";delay=" + frame.delay;
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options += ";dispose=" + frame.dispose;
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options += ";blend=" + frame.blend;
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if (frame.x_offset > 0) { options += ";xoffset=" + frame.x_offset; }
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if (frame.y_offset > 0) { options += ";yoffset=" + frame.y_offset; }
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encoder.addImageFrame(frame.pixels, frame.pixels.length,
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frame.width, frame.height, frame.stride, frame.format, options);
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}
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encoder.endImageEncode();
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return encoder;
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}
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function makeDataURL(encoder, mimetype) {
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var rawStream = encoder.QueryInterface(Ci.nsIInputStream);
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var stream = Cc["@mozilla.org/binaryinputstream;1"].createInstance();
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stream.QueryInterface(Ci.nsIBinaryInputStream);
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stream.setInputStream(rawStream);
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var bytes = stream.readByteArray(stream.available()); // returns int[]
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var base64String = toBase64(bytes);
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return "data:" + mimetype + ";base64," + base64String;
|
|
}
|
|
|
|
/* toBase64 copied from extensions/xml-rpc/src/nsXmlRpcClient.js */
|
|
|
|
/* Convert data (an array of integers) to a Base64 string. */
|
|
const toBase64Table = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz' +
|
|
'0123456789+/';
|
|
const base64Pad = '=';
|
|
function toBase64(data) {
|
|
var result = '';
|
|
var length = data.length;
|
|
var i;
|
|
// Convert every three bytes to 4 ascii characters.
|
|
for (i = 0; i < (length - 2); i += 3) {
|
|
result += toBase64Table[data[i] >> 2];
|
|
result += toBase64Table[((data[i] & 0x03) << 4) + (data[i+1] >> 4)];
|
|
result += toBase64Table[((data[i+1] & 0x0f) << 2) + (data[i+2] >> 6)];
|
|
result += toBase64Table[data[i+2] & 0x3f];
|
|
}
|
|
|
|
// Convert the remaining 1 or 2 bytes, pad out to 4 characters.
|
|
if (length%3) {
|
|
i = length - (length%3);
|
|
result += toBase64Table[data[i] >> 2];
|
|
if ((length%3) == 2) {
|
|
result += toBase64Table[((data[i] & 0x03) << 4) + (data[i+1] >> 4)];
|
|
result += toBase64Table[(data[i+1] & 0x0f) << 2];
|
|
result += base64Pad;
|
|
} else {
|
|
result += toBase64Table[(data[i] & 0x03) << 4];
|
|
result += base64Pad + base64Pad;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|