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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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94
dom/canvas/test/imagebitmap_extensions_prepareSources.js Normal file
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var gImage;
var gVideo;
var gCanvas;
var gCtx;
var gImageData;
var gImageBitmap;
var gPNGBlob;
var gJPEGBlob;
var gGroundTruthImageData;
function prepareSources() {
gVideo = document.createElement("video");
gVideo.src = "http://example.com/tests/dom/canvas/test/crossorigin/video.sjs?name=tests/dom/media/test/320x240.ogv&type=video/ogg&cors=anonymous";
gVideo.crossOrigin = "anonymous";
gVideo.autoplay = "true"
gCanvas = document.createElement("canvas");
gCtx = gCanvas.getContext("2d");
var resolver;
var promise = new Promise(function(resolve, reject) {
resolver = resolve;
});
// Prepare video.
gVideo.onloadeddata = function() {
ok(gVideo, "[Prepare Sources] gVideo is ok.");
// Prepare canvas.
gCanvas.width = gVideo.videoWidth;
gCanvas.height = gVideo.videoHeight;
gCtx.drawImage(gVideo, 0, 0);
ok(gCanvas, "[Prepare Sources] gCanvas is ok.");
ok(gCtx, "[Prepare Sources] gCtx is ok.");
// Prepare gGroundTruthImageData.
gGroundTruthImageData = gCtx.getImageData(0, 0, gCanvas.width, gCanvas.height);
ok(gGroundTruthImageData, "[Prepare Sources] gGroundTruthImageData is ok.");
// Prepare image.
gImage = document.createElement("img");
gImage.src = gCanvas.toDataURL();
var resolverImage;
var promiseImage = new Promise(function(resolve, reject) {
resolverImage = resolve;
});
gImage.onload = function() {
resolverImage(true);
}
// Prepare ImageData.
gImageData = gCtx.getImageData(0, 0, gCanvas.width, gCanvas.height);
ok(gImageData, "[Prepare Sources] gImageData is ok.");
// Prepapre PNG Blob.
var promisePNGBlob = new Promise(function(resolve, reject) {
gCanvas.toBlob(function(blob) {
gPNGBlob = blob;
ok(gPNGBlob, "[Prepare Sources] gPNGBlob is ok.");
resolve(true);
});
});
// Prepare JPEG Blob.
var promiseJPEGBlob = new Promise(function(resolve, reject) {
gCanvas.toBlob(function(blob) {
gJPEGBlob = blob;
ok(gJPEGBlob, "[Prepare Sources] gJPEGBlob is ok.");
resolve(true);
}, "image/jpeg", 1.00);
});
// Prepare ImageBitmap.
var promiseImageBitmap = new Promise(function(resolve, reject) {
var p = createImageBitmap(gCanvas);
p.then(function(bitmap) {
gImageBitmap = bitmap;
ok(gImageBitmap, "[Prepare Sources] gImageBitmap is ok.");
resolve(true);
});
});
resolver(Promise.all([
promiseImage,
promisePNGBlob,
promiseJPEGBlob,
promiseImageBitmap
]))
}
return promise;
}