dom/canvas/test/webgl-conf/checkout/conformance2/context/context-sharing-texture2darray-texture3d-data-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>Multiple WebGL2 Context sharing texture2darray/texture3d data bug test</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="canvas1" width="64" height="64"> </canvas>
  19 <canvas id="canvas2" width="64" height="64"> </canvas>
  20 <div id="console"></div>
  21
  22 <!-- WebGL 2 Shaders -->
  23 <script id="vs" type="x-shader/x-vertex">#version 300 es
  24 precision mediump float;
  25 in vec4 a_position;
  26 in vec2 a_coord;
  27 out vec2 v_coord;
  28 void main() {
  29     gl_Position = a_position;
  30     v_coord = a_coord;
  31 }
  32 </script>
  33
  34 <script id="fs_texture_3d" type="x-shader/x-fragment">#version 300 es
  35 precision mediump float;
  36 in vec2 v_coord;
  37 uniform mediump sampler3D u_sampler;
  38 out vec4 o_color;
  39 void main () {
  40     o_color = texture(u_sampler, vec3(v_coord, 0.0));
  41 }
  42 </script>
  43
  44 <script id="fs_texture_2d_array" type="x-shader/x-fragment">#version 300 es
  45 precision mediump float;
  46 in vec2 v_coord;
  47 uniform mediump sampler2DArray u_sampler;
  48 out vec4 o_color;
  49 void main () {
  50     o_color = texture(u_sampler, vec3(v_coord, 0.0));
  51 }
  52 </script>
  53
  54 <script>
  55 "use strict";
  56 description("This test verifies that 2 different contexts both using 2d array texture or 3d texture does not share the texture data among them due to context save/restore bug. https://bugs.chromium.org/p/chromium/issues/detail?id=788448");
  57 debug("");
  58
  59 function render(gl, width, height, expectedColor, msg) {
  60     wtu.setupUnitQuad(gl, 0, 1);
  61     wtu.clearAndDrawUnitQuad(gl);
  62     wtu.checkCanvasRect(gl, 0, 0, width, height, expectedColor, msg);
  63 }
  64
  65 function StateSetup(gl, texture_type, texture_color, width, height) {
  66
  67     // create a buffer to hold texture data
  68     const depth = 4;
  69     var size = width * height * depth * 4;
  70     var buf = new Uint8Array(size);
  71     for (var i = 0; i < size; i += 4) {
  72         buf[i + 0] = texture_color[0];
  73         buf[i + 1] = texture_color[1];
  74         buf[i + 2] = texture_color[2];
  75         buf[i + 3] = texture_color[3];
  76     }
  77     gl.viewport(0, 0, width, height);
  78
  79     // choose texture type and fragment shader type
  80     var tex_type = gl.TEXTURE_2D;
  81     var fragment_shader =  "", vertex_shader = "vs";
  82     if(texture_type === "3d") {
  83       tex_type = gl.TEXTURE_3D, fragment_shader = "fs_texture_3d";
  84     } else if(texture_type === "2d_array") {
  85       tex_type = gl.TEXTURE_2D_ARRAY, fragment_shader = "fs_texture_2d_array";
  86     } else {
  87       testFailed("Texture type must be 3d or 2darray");
  88     }
  89
  90     var program = wtu.setupProgram(gl, [vertex_shader, fragment_shader], ['a_position', 'a_coord'], [0, 1]);
  91
  92     // create a texture
  93     var texture = gl.createTexture();
  94     gl.activeTexture(gl.TEXTURE0);
  95
  96     // program texture parameters
  97     gl.activeTexture(gl.TEXTURE0);
  98     gl.bindTexture(tex_type, texture);
  99     gl.texImage3D(tex_type, 0, gl.RGBA, width, height, depth, 0, gl.RGBA, gl.UNSIGNED_BYTE, buf);
 100     gl.texParameteri(tex_type, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
 101     gl.texParameteri(tex_type, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
 102
 103     // bind sampler to the texture
 104     var samplerLoc = gl.getUniformLocation(program, "u_sampler");
 105     gl.uniform1i(samplerLoc, 0);
 106
 107     // flush all gl commands
 108     gl.flush();
 109 }
 110
 111 var wtu = WebGLTestUtils;
 112 var canvas1 = document.getElementById("canvas1");
 113 var gl1 = wtu.create3DContext(canvas1, null, 2); //context1
 114
 115 var canvas2 = document.getElementById("canvas2");
 116 var gl2 = wtu.create3DContext(canvas2, null, 2); // context2
 117
 118 if (gl1 && gl2)
 119 {
 120   testPassed("Created 2 WebGL2 context successfully");
 121   var red = [255, 0, 0, 255], green = [0,255,0,255], blue = [0,0,255,255];
 122   var width = 64, height = 64;
 123   var texture_type = "3d", texture_color = green;
 124   StateSetup(gl1,texture_type, texture_color, width, height);// context1 state setup
 125   texture_color = red;
 126   StateSetup(gl2, texture_type, texture_color, width, height);// context2 state setup
 127   render(gl1, width, height, green, "Result pixels rendering from context1 with 3d texture should be green");// render context1
 128
 129   texture_type = "2d_array", texture_color = blue;
 130   StateSetup(gl1, texture_type, texture_color, width, height);// context1 state setup
 131   texture_color = green;
 132   StateSetup(gl2, texture_type, texture_color, width, height);// context2 state setup
 133   render(gl1, width, height, blue, "Result pixels rendering from context1 with 2darray texture should be blue");//render context1
 134 }
 135 else if(!gl1)
 136 {
 137   testFailed("Fail to get 1st WebGL2 context");
 138 }
 139 else
 140 {
 141   testFailed("Fail to get 2nd WebGL2 context");
 142 }
 143
 144 debug("");
 145 var successfullyParsed = true;
 146 </script>
 147 <script src="../../js/js-test-post.js"></script>
 148
 149 </body>
 150 </html>