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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/webgl-mochitest/test_depth_readpixels.html
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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+<!DOCTYPE HTML>
+<html>
+<head>
+<title>WebGL test: Check for error on ReadPixels from a depth-only FB.</title>
+<script src="/tests/SimpleTest/SimpleTest.js"></script>
+<link rel="stylesheet" href="/tests/SimpleTest/test.css">
+<script src="webgl-util.js"></script>
+<script src="driver-info.js"></script>
+</head>
+<body>
+<canvas id="c"></canvas>
+<script>
+"use strict";
+
+(function() {
+ var gl = WebGLUtil.getWebGL('c');
+ if (!gl) {
+ todo(gl, 'Get GL working here first.');
+ return;
+ }
+
+ var rb = gl.createRenderbuffer();
+ gl.bindRenderbuffer(gl.RENDERBUFFER, rb);
+ gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_COMPONENT16, 4, 4);
+
+ var fb = gl.createFramebuffer();
+ gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
+ gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT,
+ gl.RENDERBUFFER, rb);
+
+ if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) {
+ todo(false, 'Depth-only FB incomplete. This is valid.');
+ return;
+ }
+
+ ok(!gl.getError(), 'Should have no errors after constructing FB.');
+
+ var pixels = new Uint8Array([1, 2, 3, 4]);
+ gl.readPixels(0, 0, // x,y
+ 1, 1, // w,h
+ gl.RGBA, gl.UNSIGNED_BYTE, pixels);
+
+ ok(gl.getError() == gl.INVALID_OPERATION,
+ '1x1 color read from a depth FB should generated INVALID_OP.');
+ console.log('Data after 1x1 color-from-depth readpixels:');
+ console.log(pixels);
+
+ gl.readPixels(0, 0, // x,y
+ 0, 0, // w,h
+ gl.RGBA, gl.UNSIGNED_BYTE, pixels);
+
+ ok(gl.getError() == gl.INVALID_OPERATION,
+ '0x0 color read from a depth FB should generated INVALID_OP.');
+})();
+
+ok(true, 'Test complete.');
+
+</script>
+</body>
+</html>