dom/canvas/test/webgl-conf/checkout/conformance2/textures/misc/active-3d-texture-bug.html

   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 -->
   6
   7 <!DOCTYPE html>
   8 <html>
   9 <head>
  10 <meta charset="utf-8">
  11 <title>WebGL Active TEXTURE1 Bug 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 </head>
  16 <body>
  17 <div id="description"></div>
  18 <canvas id="canvas" width="64" height="64"> </canvas>
  19 <div id="console"></div>
  20 <script id="vshader" type="x-shader/x-vertex">#version 300 es
  21 precision mediump float;
  22 in vec4 a_position;
  23 in vec2 a_coord;
  24 out vec2 v_coord;
  25 void main() {
  26     gl_Position = a_position;
  27     v_coord = a_coord;
  28 }
  29 </script>
  30 <script id="fshader" type="x-shader/x-fragment">#version 300 es
  31 precision mediump float;
  32 in vec2 v_coord;
  33 uniform mediump sampler3D u_sampler;
  34 out vec4 o_color;
  35 void main () {
  36     o_color = texture(u_sampler, vec3(v_coord, 0.0));
  37 }
  38 </script>
  39 <script>
  40 "use strict";
  41 description("Test for a MacOSX 10.12 with Intel GPUs driver crash bug activating TEXTURE1 for 3d texture");
  42 debug("");
  43
  44 var wtu = WebGLTestUtils;
  45 var canvas = document.getElementById("canvas");
  46 var gl = wtu.create3DContext(canvas, null, 2);
  47 var samplerLoc;
  48
  49 function render(textureUnit, width, height, expectedColor, msg) {
  50     gl.uniform1i(samplerLoc, textureUnit);
  51     wtu.setupUnitQuad(gl, 0, 1);
  52     wtu.clearAndDrawUnitQuad(gl);
  53     wtu.checkCanvasRect(gl, 0, 0, width, height, expectedColor, msg);
  54 }
  55
  56 function activeTextureTest() {
  57     var texture = gl.createTexture();
  58     var sampler = gl.createSampler();
  59     var width = 64;
  60     var height = 64;
  61     var depth = 4;
  62     var black = [0, 0, 0, 255];
  63     var size = width * height * depth * 4;
  64
  65     var buf = new Uint8Array(size);
  66     for (var i = 0; i < size; i += 4) {
  67         buf[i + 0] = 0;
  68         buf[i + 1] = 255;
  69         buf[i + 2] = 0;
  70         buf[i + 3] = 255;
  71     }
  72
  73     var program = wtu.setupProgram(gl, ["vshader", "fshader"], ['a_position', 'a_coord'], [0, 1]);
  74     samplerLoc = gl.getUniformLocation(program, "u_sampler");
  75
  76     gl.viewport(0, 0, width, height);
  77
  78     gl.bindTexture(gl.TEXTURE_3D, texture);
  79     gl.texImage3D(gl.TEXTURE_3D, 0, gl.RGBA, width, height, depth, 0, gl.RGBA, gl.UNSIGNED_BYTE, buf);
  80     // texture is unbound from the default texture unit TEXTURE0,
  81     // then a default black texture will be bound to TEXTURE0.
  82     gl.bindTexture(gl.TEXTURE_3D, null);
  83
  84     // Active TEXTURE1 and 3d texture are necessary to reproduce the crash bug.
  85     gl.activeTexture(gl.TEXTURE1);
  86
  87     gl.bindSampler(0, sampler);
  88     gl.samplerParameteri(sampler, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
  89     gl.samplerParameteri(sampler, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
  90     gl.bindTexture(gl.TEXTURE_3D, texture);
  91     gl.texParameteri(gl.TEXTURE_3D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
  92     gl.texParameteri(gl.TEXTURE_3D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
  93
  94     // Render using sampler
  95     // When rendering from texture unit 0, the black texture will be drawn.
  96     render(0, width, height, black, "Result pixels rendering from TEXTURE0 should be black");
  97
  98     gl.bindSampler(0, null);
  99     gl.deleteSampler(sampler);
 100
 101     // Render using texture
 102     // When rendering from texture unit 0, the black texture will be drawn.
 103     // Crash happens when calling gl.drawArrays during this rendering.
 104     render(0, width, height, black, "Result pixels rendering from TEXTURE0 should be black");
 105
 106     gl.bindTexture(gl.TEXTURE_3D, null);
 107     gl.deleteTexture(texture);
 108     gl.deleteProgram(program);
 109 }
 110
 111 if (!gl) {
 112     testFailed("Fail to get a WebGL2 context");
 113 } else {
 114     testPassed("Created WebGL2 context successfully");
 115     activeTextureTest();
 116 }
 117
 118 debug("");
 119 var successfullyParsed = true;
 120 </script>
 121 <script src="../../../js/js-test-post.js"></script>
 122
 123 </body>
 124 </html>