Backed out changeset 7272b7396c78 (bug 1932758) for causing fenix debug failures...
[gecko.git] / dom / canvas / test / webgl-conf / checkout / conformance2 / uniforms / simple-buffer-change.html
blobc5646faae896ccb65dc65542d46617e8e79053cf
1 <!--
2 Copyright (c) 2019 The Khronos Group Inc.
3 Use of this source code is governed by an MIT-style license that can be
4 found in the LICENSE.txt file.
5 -->
7 <!DOCTYPE html>
8 <html>
9 <head>
10 <meta charset="utf-8">
11 <title>WebGL draw with uniform blocks conformance tests</title>
12 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
13 <script src="../../js/js-test-pre.js"></script>
14 <script src="../../js/webgl-test-utils.js"></script>
15 <script id="vshader" type="x-shader/x-vertex">#version 300 es
16 in vec4 a_vertex;
17 void main(void) {
18 gl_Position = a_vertex;
20 </script>
21 <script id="fshader" type="x-shader/x-fragment">#version 300 es
22 precision mediump float;
23 layout (std140) uniform color_ubo {
24 vec4 color;
26 out vec4 fragColor;
27 void main(void) {
28 fragColor = color;
30 </script>
31 </head>
32 <body>
33 <canvas id="example" width="100", height="100"></canvas>
34 <div id="description"></div>
35 <div id="console"></div>
36 <script>
37 "use strict";
38 debug("");
40 // Ported from: https://github.com/google/angle/blob/master/src/tests/gl_tests/UniformBufferTest.cpp#L1463
41 description("Regression test for https://bugs.chromium.org/p/chromium/issues/detail?id=792966");
43 var wtu = WebGLTestUtils;
44 var gl = wtu.create3DContext("example", undefined, 2);
46 function runTest() {
47 var program = wtu.setupProgram(gl, ['vshader', 'fshader'], ['a_vertex']);
48 var uboIndex = gl.INVALID_INDEX;
49 if (program)
50 uboIndex = gl.getUniformBlockIndex(program, "color_ubo");
51 if (!program || uboIndex == gl.INVALID_INDEX) {
52 testFailed("Loading program failed");
53 return;
55 testPassed("Loading program succeeded");
57 var vertices = new Float32Array([
58 -1, -1, 0,
59 1, -1, 0,
60 -1, 1, 0,
61 1, 1, 0
62 ]);
63 var vertexBuf = gl.createBuffer();
64 gl.bindBuffer(gl.ARRAY_BUFFER, vertexBuf);
65 gl.bufferData(gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW);
66 gl.enableVertexAttribArray(0);
67 gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0);
69 var indexBuf = gl.createBuffer();
70 gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, indexBuf);
71 gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Int16Array([ 0, 1, 2, 2, 1, 3 ]), gl.STATIC_DRAW);
73 var uboDataSize = gl.getActiveUniformBlockParameter(
74 program, uboIndex, gl.UNIFORM_BLOCK_DATA_SIZE);
75 if (uboDataSize == 0) {
76 testFailed("uniform block data size invalid");
77 return;
80 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "No errors from setup");
82 debug("draw lower triangle - should be red");
83 var uboBuf1 = gl.createBuffer();
84 gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, uboBuf1);
85 gl.bufferData(gl.UNIFORM_BUFFER, uboDataSize, gl.STATIC_DRAW);
86 gl.bufferSubData(gl.UNIFORM_BUFFER, 0, new Float32Array([ 1, 0, 0, 1 ]));
87 gl.uniformBlockBinding(program, uboIndex, 0);
88 gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 0);
89 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "No errors from draw");
91 // Bind a second buffer to the same binding point (0). This should set to draw green.
92 debug("draw upper triangle - should be green");
93 var uboBuf2 = gl.createBuffer();
94 gl.bindBufferBase(gl.UNIFORM_BUFFER, 0, uboBuf2);
95 gl.bufferData(gl.UNIFORM_BUFFER, uboDataSize, gl.STATIC_DRAW);
96 gl.bufferSubData(gl.UNIFORM_BUFFER, 0, new Float32Array([ 0, 1, 0, 1 ]));
97 gl.drawElements(gl.TRIANGLES, 3, gl.UNSIGNED_SHORT, 6);
98 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "No errors from draw");
100 var width = 100, height = 100;
101 wtu.checkCanvasRectColor(gl, 0, 0, width/2-5, height/2-5, [255, 0, 0, 255], 2,
102 function() { testPassed("lower left should be red"); },
103 function() { testFailed("lower left should be red"); });
104 wtu.checkCanvasRectColor(gl, width/2+5, height/2+5, width/2-5, height/2-5, [0, 255, 0, 255], 2,
105 function() { testPassed("top right should be green"); },
106 function() { testFailed("top right should be green"); });
109 if (!gl) {
110 testFailed("WebGL context creation failed");
111 } else {
112 testPassed("WebGL context creation succeeded");
113 runTest();
116 debug("");
117 var successfullyParsed = true;
118 </script>
119 <script src="../../js/js-test-post.js"></script>
121 </body>
122 </html>