42 lines
1.1 KiB
HTML
42 lines
1.1 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
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<html>
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<head>
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<script src="../../resources/js-test-pre.js"></script>
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</head>
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<body>
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<script>
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description("Test if putImageData gives back the same result as getImageData");
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var ctx = document.createElement('canvas').getContext('2d');
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ctx.fillStyle = "red";
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ctx.fillRect(0,0,50,20);
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ctx.fillStyle = "green";
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ctx.fillRect(50,0,50,20);
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ctx.fillStyle = "blue";
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ctx.fillRect(100,0,50,20);
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var data = ctx.getImageData(0,0,150,20);
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ctx.putImageData(data, 0, 20);
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var imageData = ctx.getImageData(1, 21, 48, 18);
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var imgdata = imageData.data;
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shouldBe("imgdata[4]", "255");
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shouldBe("imgdata[5]", "0");
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shouldBe("imgdata[6]", "0");
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imageData = ctx.getImageData(51, 21, 48, 18);
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imgdata = imageData.data;
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shouldBe("imgdata[4]", "0");
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shouldBe("imgdata[5]", "128");
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shouldBe("imgdata[6]", "0");
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imageData = ctx.getImageData(101, 21, 48, 18);
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imgdata = imageData.data;
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shouldBe("imgdata[4]", "0");
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shouldBe("imgdata[5]", "0");
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shouldBe("imgdata[6]", "255");
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</script>
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<script src="../../resources/js-test-post.js"></script>
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</body>
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</html>
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