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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/reftest/webgl-hanging-scissor-test.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/dom/canvas/test/reftest/webgl-hanging-scissor-test.html b/dom/canvas/test/reftest/webgl-hanging-scissor-test.html
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+++ b/dom/canvas/test/reftest/webgl-hanging-scissor-test.html
@@ -0,0 +1,57 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<head>
+<meta charset="UTF-8">
+
+<script type="text/javascript" src="webgl-utils.js"></script>
+<script type="text/javascript">
+/* Hanging Scissor Test
+ *
+ * Clear the canvas to green, but create and enable and set scissor values
+ * before returning. This can fail if we blindly blit or read from the screen
+ * without disabling scissor-test.
+ *
+ * Failure should look like only the top-left quadrant is rendered.
+ */
+
+"use strict";
+
+function renderGL(gl) {
+ gl.clearColor(0.0, 1.0, 0.0, 1.0);
+ gl.clear(gl.COLOR_BUFFER_BIT);
+
+ gl.enable(gl.SCISSOR_TEST);
+ gl.scissor(0, 128, 128, 128);
+
+ gl.finish();
+}
+
+function renderFailure(canvas) {
+ // This will also trigger RAF for us.
+ var context = canvas.getContext("2d");
+ context.fillText('WebGL failed.', 64, 64);
+}
+
+function runTest() {
+ var canvas = document.getElementById("canvas");
+ var gl = initGL(canvas);
+
+ if (gl)
+ renderGL(gl);
+ else
+ renderFailure(canvas);
+
+ waitForComposite(testComplete);
+}
+
+function testComplete() {
+ document.documentElement.removeAttribute("class");
+}
+</script>
+</head>
+
+<body onload="rAF(runTest);">
+ <canvas id="canvas" width="256" height="256"></canvas>
+</body>
+
+</html>