1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/canvas/test/webgl-mochitest/test_depth_readpixels.html Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,60 @@
1.4 +<!DOCTYPE HTML>
1.5 +<html>
1.6 +<head>
1.7 +<title>WebGL test: Check for error on ReadPixels from a depth-only FB.</title>
1.8 +<script src="/tests/SimpleTest/SimpleTest.js"></script>
1.9 +<link rel="stylesheet" href="/tests/SimpleTest/test.css">
1.10 +<script src="webgl-util.js"></script>
1.11 +<script src="driver-info.js"></script>
1.12 +</head>
1.13 +<body>
1.14 +<canvas id="c"></canvas>
1.15 +<script>
1.16 +"use strict";
1.17 +
1.18 +(function() {
1.19 + var gl = WebGLUtil.getWebGL('c');
1.20 + if (!gl) {
1.21 + todo(gl, 'Get GL working here first.');
1.22 + return;
1.23 + }
1.24 +
1.25 + var rb = gl.createRenderbuffer();
1.26 + gl.bindRenderbuffer(gl.RENDERBUFFER, rb);
1.27 + gl.renderbufferStorage(gl.RENDERBUFFER, gl.DEPTH_COMPONENT16, 4, 4);
1.28 +
1.29 + var fb = gl.createFramebuffer();
1.30 + gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
1.31 + gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.DEPTH_ATTACHMENT,
1.32 + gl.RENDERBUFFER, rb);
1.33 +
1.34 + if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) {
1.35 + todo(false, 'Depth-only FB incomplete. This is valid.');
1.36 + return;
1.37 + }
1.38 +
1.39 + ok(!gl.getError(), 'Should have no errors after constructing FB.');
1.40 +
1.41 + var pixels = new Uint8Array([1, 2, 3, 4]);
1.42 + gl.readPixels(0, 0, // x,y
1.43 + 1, 1, // w,h
1.44 + gl.RGBA, gl.UNSIGNED_BYTE, pixels);
1.45 +
1.46 + ok(gl.getError() == gl.INVALID_OPERATION,
1.47 + '1x1 color read from a depth FB should generated INVALID_OP.');
1.48 + console.log('Data after 1x1 color-from-depth readpixels:');
1.49 + console.log(pixels);
1.50 +
1.51 + gl.readPixels(0, 0, // x,y
1.52 + 0, 0, // w,h
1.53 + gl.RGBA, gl.UNSIGNED_BYTE, pixels);
1.54 +
1.55 + ok(gl.getError() == gl.INVALID_OPERATION,
1.56 + '0x0 color read from a depth FB should generated INVALID_OP.');
1.57 +})();
1.58 +
1.59 +ok(true, 'Test complete.');
1.60 +
1.61 +</script>
1.62 +</body>
1.63 +</html>
