75 lines
2.6 KiB
HTML
75 lines
2.6 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<script type="text/javascript">
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if (window.testRunner)
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testRunner.waitUntilDone();
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</script>
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</head>
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<body>
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<script src="../../resources/js-test-pre.js"></script>
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<script type="text/javascript" src="canvas-blending-helpers.js"></script>
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<script type="text/javascript">
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description("Series of tests to ensure correct results on applying different blend modes when drawing a pattern on top of a color.");
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var context;
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var hardwareAcceleratedTestsDone = false;
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function actualColor(x, y) {
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return context.getImageData(x, y, 1, 1).data;
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}
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function checkBlendModeResult(i, context, sigma) {
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var expectedColor = blendColors([129 / 255, 1, 129 / 255, 1], [1, 129 / 255, 129 / 255, 1], i);
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var ac = "actualColor(0, 0)";
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shouldBeCloseTo(ac + "[0]", expectedColor[0], sigma);
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shouldBeCloseTo(ac + "[1]", expectedColor[1], sigma);
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shouldBeCloseTo(ac + "[2]", expectedColor[2], sigma);
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shouldBeCloseTo(ac + "[3]", expectedColor[3], sigma);
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}
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function drawElement(context, i) {
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if (i >= blendModes.length) {
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if (hardwareAcceleratedTestsDone) {
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var scriptElement = document.createElement("script");
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scriptElement.src = "../../resources/js-test-post-async.js";
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document.body.appendChild(scriptElement);
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return;
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}
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hardwareAcceleratedTestsDone = true;
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debug('Running test in hardware accelerated mode\n');
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runTest(100, 100);
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return;
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}
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debug("Testing blend mode " + blendModes[i]);
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context.clearRect(0, 0, 10, 10);
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context.save();
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drawBackdropColorInContext(context);
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context.globalCompositeOperation = blendModes[i];
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drawSourceColorPatternInContext(context, function() {
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checkBlendModeResult(i, context, 5);
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context.restore();
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debug('');
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drawElement(context, ++i);
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});
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}
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function runTest(width, height) {
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var canvas = document.createElement("canvas");
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var sigma = 5;
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canvas.width = width;
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canvas.height = height;
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context = canvas.getContext("2d");
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document.body.appendChild(canvas);
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drawElement(context, 0);
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}
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debug('Running test in non accelerated mode\n');
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runTest(10, 10);
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</script>
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</body>
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</html>
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