content/canvas/test/webgl-conformance/conformance/textures/copy-tex-image-and-sub-image-2d.html@deefc01c0e14
content/canvas/test/webgl-conformance/conformance/textures/copy-tex-image-and-sub-image-2d.html
Thu, 15 Jan 2015 21:03:48 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 15 Jan 2015 21:03:48 +0100
- branch
- TOR_BUG_9701
- changeset 11
- deefc01c0e14
- permissions
- -rw-r--r--
Integrate friendly tips from Tor colleagues to make (or not) 4.5 alpha 3;
This includes removal of overloaded (but unused) methods, and addition of
a overlooked call to DataStruct::SetData(nsISupports, uint32_t, bool.)
1 <!--
2 Copyright (c) 2011 The Chromium Authors. All rights reserved.
3 Use of this source code is governed by a BSD-style license that can be
4 found in the LICENSE file.
5 -->
6 <!DOCTYPE html>
7 <html>
8 <head>
9 <meta charset="utf-8">
10 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
11 <script src="../../resources/js-test-pre.js"></script>
12 <script src="../resources/webgl-test.js"></script>
13 <script src="../resources/webgl-test-utils.js"></script>
15 <script>
16 var successfullyParsed = false;
18 function init()
19 {
20 if (window.initNonKhronosFramework) {
21 window.initNonKhronosFramework(true);
22 }
24 description('Verify copyTexImage2D and copyTexSubImage2D');
26 runTest();
27 }
29 var gl = null;
30 var wtu = WebGLTestUtils;
32 function runTestIteration(antialias)
33 {
34 var canvas = document.getElementById(
35 antialias ? "antialiasOn" : "antialiasOff");
36 var attribs = antialias ? { antialias: false } : undefined;
37 gl = wtu.create3DContext(canvas, attribs);
38 var program = wtu.setupTexturedQuad(gl);
39 var textureLoc = gl.getUniformLocation(program, "tex");
40 glErrorShouldBe(gl, gl.NO_ERROR, "During Initialization");
42 gl.colorMask(1, 1, 1, 1);
43 gl.disable(gl.BLEND);
44 debug('Testing copyTexImage2D');
46 // Red canvas
47 gl.clearColor(1, 0, 0, 1);
48 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
50 var texture = gl.createTexture();
51 // Bind the texture to texture unit 0
52 gl.bindTexture(gl.TEXTURE_2D, texture);
53 // Set up texture
54 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 2, 2, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
55 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
56 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
57 gl.uniform1i(textureLoc, 0);
59 var colors = [
60 [1, 0, 0, 1],
61 [0, 1, 0, 1],
62 [0, 0, 1, 1],
63 [0.5, 0.5, 0.5, 0.5],
64 ];
65 var count = 0;
66 for (var yy = -2; yy <= 2; ++yy) {
67 for (var xx = -2; xx <= 2; ++xx) {
68 for (var ii = 0; ii < 2; ++ii) {
69 var texColor = colors[count];
70 var clearColor = colors[(count + 1) % colors.length];
71 // clear to some color
72 gl.clearColor(texColor[0], texColor[1], texColor[2], texColor[3]);
73 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
75 // copy that color to the texture.
76 switch (ii) {
77 case 0:
78 gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, xx, yy, 2, 2, 0);
79 glErrorShouldBe(gl, gl.NO_ERROR,
80 "using copyTexImage2D: x =" + xx + ", y = " + yy);
81 break;
82 case 1:
83 gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0, 0, xx, yy, 2, 2);
84 glErrorShouldBe(gl, gl.NO_ERROR,
85 "using copyTexSubImage2D: x =" + xx + ", y = " + yy);
86 break;
87 }
89 // clear to some other color.
90 gl.clearColor(clearColor[0], clearColor[1], clearColor[2], clearColor[3]);
91 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
93 // Draw the triangles
94 wtu.drawQuad(gl);
96 // check the rendering results
97 for (var iy = 0; iy < 2; ++iy) {
98 for (var ix = 0; ix < 2; ++ix) {
99 var x = xx + ix;
100 var y = yy + iy;
101 var expectedColor = (x < 0 || y < 0 || x >= 2 || y >= 2) ?
102 [0,0,0,0] :
103 [Math.floor(255 * texColor[0]),
104 Math.floor(255 * texColor[1]),
105 Math.floor(255 * texColor[2]),
106 Math.floor(255 * texColor[3])];
107 wtu.checkCanvasRect(gl, ix, iy, 1, 1, expectedColor,
108 "" + ix + ", " + iy + " should render " + expectedColor + " (+/-1)", 1);
109 }
110 }
111 count = (count + 1) % colors.length;
112 }
113 }
114 }
116 debug("");
117 }
119 function runTest(antialias)
120 {
121 debug("Testing with antialias on");
122 runTestIteration(true);
123 debug("Testing with antialias off");
124 runTestIteration(false);
126 finishTest();
127 }
128 </script>
129 </head>
130 <body onload="init()">
131 <canvas id="antialiasOn" width="2px" height="2px"></canvas>
132 <canvas id="antialiasOff" width="2px" height="2px"></canvas>
133 <div id="description"></div>
134 <div id="console"></div>
135 </body>
136 </html>
