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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/canvas/test/test_bitmaprenderer.html
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!DOCTYPE HTML>
+<html>
+<head>
+<title>WebGL in OffscreenCanvas</title>
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+<script src="/tests/SimpleTest/WindowSnapshot.js"></script>
+<link rel="stylesheet" href="/tests/SimpleTest/test.css">
+</head>
+<body>
+<script type="text/js-worker">
+function ok(expect, msg) {
+ postMessage({"type": "status", status: !!expect, msg: msg});
+}
+
+onmessage = function(event) {
+ var bitmap = event.data.bitmap;
+ ok(!!bitmap, "Get the ImageBitmap from the main script.");
+
+ var offscreenCanvas = new OffscreenCanvas(64, 64);
+ var ctx = offscreenCanvas.getContext('bitmaprenderer');
+ ok(!!ctx, "Get bitmaprenderer context on worker.");
+
+ ctx.transferFromImageBitmap(bitmap);
+ var resultBitmap = offscreenCanvas.transferToImageBitmap();
+ postMessage({"type": "bitmap", bitmap: resultBitmap}, [resultBitmap]);
+}
+</script>
+<script>
+
+SimpleTest.waitForExplicitFinish();
+
+function createCanvas(width, height) {
+ var htmlCanvas = document.createElement('canvas');
+ htmlCanvas.width = width;
+ htmlCanvas.height = height;
+ document.body.appendChild(htmlCanvas);
+ return htmlCanvas;
+}
+
+function runTest(canvasWidth, canvasHeight, nextTest) {
+ var canvas1 = createCanvas(canvasWidth, canvasHeight);
+ var ctx = canvas1.getContext("2d");
+ ctx.fillStyle = "#00FF00";
+ ctx.fillRect(0, 0, canvasWidth, canvasHeight);
+
+ var canvasRef = createCanvas(canvasWidth, canvasHeight);
+ var ctx = canvasRef.getContext("2d");
+ // Clear with black transparent first
+ ctx.fillStyle = "rgba(0, 0, 0, 0)";
+ ctx.fillRect(0, 0, canvasWidth, canvasHeight);
+
+ ctx.fillStyle = "#00FF00";
+ ctx.fillRect(0, 0, canvasWidth, canvasHeight);
+
+ createImageBitmap(canvas1).then(async function(bmp) {
+ document.body.removeChild(canvas1);
+
+ var canvas2 = createCanvas(90, 90);
+ var ctx2 = canvas2.getContext("bitmaprenderer");
+ ctx2.transferFromImageBitmap(bmp);
+
+ ok(canvasRef.toDataURL() == canvas2.toDataURL(), "toDataURL should return same result.");
+
+ // Exam render result
+ canvasRef.style.display = "none";
+ canvas2.style.display = "block";
+ var snapshot = await snapshotWindow(window);
+
+ canvasRef.style.display = "block";
+ canvas2.style.display = "none";
+ var snapshotRef = await snapshotWindow(window);
+
+ // bitmaprenderers use an ImageLayer whereas a normal 2d canvas uses a canvas layer. This
+ // can result in some anti-aliasing differences on the edge. We consider slight AA differences
+ // to be reasonable when using different codepaths so fuzz a little bit.
+ var fuzz = { numDifferentPixels: 0,
+ maxDifference: 0 };
+ if (SpecialPowers.Services.appinfo.widgetToolkit == "android") {
+ fuzz.maxDifference = 2;
+ fuzz.numDifferentPixels = 131;
+ }
+ var results = compareSnapshots(snapshot, snapshotRef, true, fuzz);
+ ok(results[0], "Screenshots should be the same");
+
+ document.body.removeChild(canvasRef);
+ document.body.removeChild(canvas2);
+
+ nextTest();
+ });
+}
+
+function createSolidGreenBitmap(width, height) {
+ const canvas = createCanvas(width, height);
+ const ctx = canvas.getContext("2d");
+ ctx.fillStyle = "#00FF00";
+ ctx.fillRect(0, 0, width, height);
+ const bitmap = createImageBitmap(canvas);
+ document.body.removeChild(canvas);
+ return bitmap;
+}
+
+async function scaleTestCase(name, refWidth, refHeight, testWidth, testHeight, canvasWidth, canvasHeight) {
+ const refBitmap = await createSolidGreenBitmap(refWidth, refHeight);
+ const refCanvas = createCanvas(refWidth, refHeight);
+ const refCtx = refCanvas.getContext("bitmaprenderer");
+ refCtx.transferFromImageBitmap(refBitmap);
+ is(refCanvas.width, refWidth, name + ": refCanvas width " + refCanvas.width + " is ref " + refWidth);
+ is(refCanvas.height, refHeight, name + ": refCanvas height " + refCanvas.height + " is ref " + refHeight);
+ const refSnapshot = await snapshotWindow(window);
+ document.body.removeChild(refCanvas);
+
+ const bitmap = await createSolidGreenBitmap(testWidth, testHeight);
+ const canvas = createCanvas(canvasWidth, canvasHeight);
+ const ctx = canvas.getContext("bitmaprenderer");
+ ctx.transferFromImageBitmap(bitmap);
+ is(canvas.width, testWidth, name + ": canvas width " + canvas.width + " is bitmap " + testWidth);
+ is(canvas.height, testHeight, name + ": canvas height " + canvas.height + " is bitmap " + testHeight);
+ if (refWidth !== testWidth) {
+ canvas.width = refWidth;
+ is(canvas.width, refWidth, name + ": canvas width " + canvas.width + " is ref " + refWidth);
+ }
+ if (refHeight !== testHeight) {
+ canvas.height = refHeight;
+ is(canvas.height, refHeight, name + ": canvas height " + canvas.height + " is ref " + refHeight);
+ }
+ const snapshot = await snapshotWindow(window);
+ document.body.removeChild(canvas);
+
+ const results = compareSnapshots(snapshot, refSnapshot, true);
+ ok(results[0], name + ": screenshots should be the same");
+ return Promise.resolve();
+}
+
+async function scaleTest() {
+ await scaleTestCase("grow_unscaled", 64, 64, 64, 64, 32, 32); // Canvas grows, no scaling.
+ await scaleTestCase("grow_downscaled", 64, 64, 128, 128, 32, 32); // Canvas grows, scales down.
+ await scaleTestCase("grow_upscaled", 64, 64, 32, 32, 16, 16); // Canvas grows, scales up.
+ await scaleTestCase("same_downscaled", 64, 64, 128, 128, 128, 128); // Canvas unchanged, scales down.
+ await scaleTestCase("same_upscaled", 64, 64, 32, 32, 32, 32); // Canvas unchanged, scales up.
+ await scaleTestCase("shrink_unscaled", 64, 64, 64, 64, 128, 128); // Canvas shrinks, no scaling.
+ await scaleTestCase("shrink_downscaled", 64, 64, 128, 128, 256, 256); // Canvas shrinks, scales down.
+ await scaleTestCase("shrink_upscaled", 64, 64, 32, 32, 256, 256); // Canvas shrinks, scales up.
+ runTestOnWorker();
+}
+
+function runTestOnWorker() {
+ var canvas1 = createCanvas(64, 64);
+ var ctx = canvas1.getContext("2d");
+ ctx.fillStyle = "#00FF00";
+ ctx.fillRect(0, 0, 64, 64);
+
+ var blob = new Blob(Array.prototype.map.call(document.querySelectorAll("script[type=\"text\/js-worker\"]"), function (oScript) { return oScript.textContent; }),{type: "text/javascript"});
+
+ var worker = new Worker(window.URL.createObjectURL(blob));
+
+ createImageBitmap(canvas1).then(function(bmp) {
+ worker.postMessage({bitmap: bmp}, [bmp]);
+ worker.onmessage = function(event) {
+ if (event.data.type == "status") {
+ ok(event.data.status, event.data.msg);
+ } else if (event.data.type == "bitmap") {
+ var canvas2 = createCanvas(64, 64);
+ var ctx2 = canvas2.getContext('bitmaprenderer');
+ ctx2.transferFromImageBitmap(event.data.bitmap);
+ ok(canvas1.toDataURL() == canvas2.toDataURL(), 'toDataURL should be the same');
+ SimpleTest.finish();
+ }
+ }
+ });
+}
+
+SpecialPowers.pushPrefEnv({'set': [
+ ['gfx.offscreencanvas.enabled', true],
+]}, runTest.bind(this, 64, 64, runTest.bind(this, 128, 128, scaleTest)));
+
+</script>
+</body>
+</html>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 04:45:07 +0000