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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /dom/canvas/test/test_2d.fill.pattern.imageSmoothingEnabled.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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+<!DOCTYPE HTML>
+<title>Canvas test: 2d.fill.pattern.imageSmoothingEnabled</title>
+<!-- Testing: That imageSmoothingEnabled is taken into account when doing pattern fills-->
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+<link rel="stylesheet" href="/tests/SimpleTest/test.css">
+<body>
+<canvas id="c" width="128" height="128"><p class="fallback">FAIL (fallback content)</p></canvas>
+<img id="img">
+<script>
+function isPixel(ctx, x,y, r,g,b,a, pos, colour, d) {
+ var pixel = ctx.getImageData(x, y, 1, 1);
+ var pr = pixel.data[0],
+ pg = pixel.data[1],
+ pb = pixel.data[2],
+ pa = pixel.data[3];
+ ok(r-d <= pr && pr <= r+d &&
+ g-d <= pg && pg <= g+d &&
+ b-d <= pb && pb <= b+d &&
+ a-d <= pa && pa <= a+d,
+ "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; expected "+colour+" +/- "+d);
+}
+
+function isNotPixel(ctx, x,y, r,g,b,a, pos, colour, d) {
+ var pixel = ctx.getImageData(x, y, 1, 1);
+ var pr = pixel.data[0],
+ pg = pixel.data[1],
+ pb = pixel.data[2],
+ pa = pixel.data[3];
+ ok(!(r-d <= pr && pr <= r+d &&
+ g-d <= pg && pg <= g+d &&
+ b-d <= pb && pb <= b+d &&
+ a-d <= pa && pa <= a+d),
+ "pixel "+pos+" is "+pr+","+pg+","+pb+","+pa+"; did not expect "+colour+" +/- "+d);
+}
+
+SimpleTest.waitForExplicitFinish();
+addLoadEvent(function () {
+
+var canvas = document.getElementById('c');
+var ctx = canvas.getContext('2d');
+
+var img = document.getElementById("img");
+img.src = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==";
+
+img.onload = function () {
+ ctx.imageSmoothingEnabled = false;
+ ctx.save();
+ ctx.fillStyle = "rgb(127, 127, 127);";
+ ctx.fillRect(0, 0, canvas.width, canvas.height);
+ ctx.scale(16, 16);
+ ctx.fillStyle = ctx.createPattern(img, 'no-repeat');
+ ctx.fillRect(0, 0, 8, 8);
+ ctx.restore();
+
+ // Check for nearest filtering.
+ isPixel(ctx, 0,0, 0,0,0,255, "0,0", "0,0,0,255", 0);
+ isPixel(ctx, 14,14, 0,0,0,255, "14,14", "0,0,0,255", 0);
+ isPixel(ctx, 15,15, 0,0,0,255, "15,15", "0,0,0,255", 0);
+ isPixel(ctx, 16,16, 255,0,0,255, "16,16", "255,0,0,255", 0);
+
+ ctx.imageSmoothingEnabled = true;
+ ctx.save();
+ ctx.fillStyle = "rgb(127, 127, 127);";
+ ctx.fillRect(0, 0, canvas.width, canvas.height);
+ ctx.scale(16, 16);
+ ctx.fillStyle = ctx.createPattern(img, 'no-repeat');
+ ctx.fillRect(0, 0, 8, 8);
+ ctx.restore();
+
+ // Check that nearest filtering is not happening.
+ isPixel(ctx, 0,0, 0,0,0,255, "0,0", "0,0,0,255", 0);
+ isNotPixel(ctx, 14,14, 0,0,0,255, "14,14", "0,0,0,255", 0);
+ isNotPixel(ctx, 15,15, 0,0,0,255, "15,15", "0,0,0,255", 0);
+ isNotPixel(ctx, 16,16, 255,0,0,255, "16,16", "255,0,0,255", 0);
+ isPixel(ctx, 32,32, 255,0,0,255, "32,32", "255,0,0,255", 0);
+ SimpleTest.finish();
+}
+
+});
+</script>
+