content/canvas/test/webgl-mochitest/test_texsubimage_float.html@6474c204b198
content/canvas/test/webgl-mochitest/test_texsubimage_float.html
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 <!DOCTYPE HTML>
2 <title>WebGL test: bug 1003607</title>
3 <script src="/tests/SimpleTest/SimpleTest.js"></script>
4 <link rel="stylesheet" href="/tests/SimpleTest/test.css">
5 <script src="driver-info.js"></script>
6 <script src="webgl-util.js"></script>
7 <body>
8 <canvas id="c"></canvas>
9 <script>
11 // Give ourselves a scope to return early from:
12 (function() {
13 var gl = WebGLUtil.getWebGL('c');
14 if (!gl) {
15 todo(false, 'WebGL is unavailable.');
16 return;
17 }
19 // Catch actual WebGLUtil errors, not GL errors.
20 function errorFunc(str) {
21 ok(false, 'Error: ' + str);
22 }
23 WebGLUtil.setErrorFunc(errorFunc);
25 function checkGLError(func, info, reference) {
26 var error = gl.getError();
27 var prefix = info ? ('[' + info + '] ') : '';
28 var text = 'gl.getError should be 0x' + reference.toString(16) +
29 ', was 0x' + error.toString(16) + '.';
30 func(error == reference, prefix + text);
31 }
33 // Begin test:
34 if (!gl.getExtension('OES_texture_float')) {
35 todo(false, 'Not having this extension is fine.');
36 return;
37 }
38 var tex = gl.createTexture();
39 gl.bindTexture(gl.TEXTURE_2D, tex);
40 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
41 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
42 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
43 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
44 checkGLError(ok, 'texture parameter setup should succeed', gl.NO_ERROR);
46 // Generate data
47 var width = 2;
48 var height = 2;
49 var numChannels = 4;
50 var data = new Float32Array(width * height * numChannels);
51 for (var ii = 0; ii < data.length; ++ii) {
52 data[ii] = 10000;
53 }
54 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.FLOAT, data);
55 checkGLError(ok, 'floating-point texture allocation should succeed', gl.NO_ERROR);
57 // Try respecifying data
58 gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, width, height, gl.RGBA, gl.FLOAT, data);
59 checkGLError(ok, 'floating-point texture sub image should succeed', gl.NO_ERROR);
60 })();
62 </script>
