dom/canvas/test/webgl-conf/checkout/conformance/renderbuffers/framebuffer-test.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 Framebuffer 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 <script src="../../js/desktop-gl-constants.js"></script>
  16 </head>
  17 <body>
  18 <div id="description"></div>
  19 <div id="console"></div>
  20 <canvas id="canvas" width="2" height="2"> </canvas>
  21 <script>
  22 "use strict";
  23 description("This tests framebuffer/renderbuffer-related functions");
  24
  25 debug("");
  26 debug("Canvas.getContext");
  27
  28 var wtu = WebGLTestUtils;
  29 var canvas = document.getElementById("canvas");
  30 var gl = wtu.create3DContext(canvas);
  31 if (!gl) {
  32   testFailed("context does not exist");
  33 } else {
  34   testPassed("context exists");
  35
  36   debug("");
  37   debug("Checking framebuffer/renderbuffer stuff.");
  38
  39   gl.getFramebufferAttachmentParameter(
  40      gl.FRAMEBUFFER,
  41      gl.COLOR_ATTACHMENT0,
  42      gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE);
  43   wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION,
  44             "calling getFramebufferAttachmentParameter on the default framebuffer should generate INVALID_OPERATION.");
  45
  46   assertMsg(gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE,
  47             "calling checkFramebufferStatus on the default framebuffer should generate FRAMEBUFFER_COMPLETE.");
  48
  49   var tex = gl.createTexture();
  50   gl.bindTexture(gl.TEXTURE_2D, tex);
  51   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
  52   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
  53   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
  54   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
  55   gl.texImage2D(gl.TEXTURE_2D,
  56                 0,                 // level
  57                 gl.RGBA,           // internalFormat
  58                 canvas.width,      // width
  59                 canvas.height,     // height
  60                 0,                 // border
  61                 gl.RGBA,           // format
  62                 gl.UNSIGNED_BYTE,  // type
  63                 null);             // data
  64   gl.framebufferTexture2D(
  65       gl.FRAMEBUFFER,
  66       gl.COLOR_ATTACHMENT0,
  67       gl.TEXTURE_2D,
  68       tex,
  69       0);
  70   wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION,
  71             "trying to attach a texture to default framebuffer should generate INVALID_OPERATION.");
  72
  73   gl.framebufferRenderbuffer(
  74       gl.FRAMEBUFFER,
  75       gl.COLOR_ATTACHMENT0,
  76       gl.RENDERBUFFER,
  77       null);
  78   wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION,
  79             "trying to detach default renderbuffer from default framebuffer should generate INVALID_OPERATION.");
  80
  81   var rb = gl.createRenderbuffer();
  82   gl.bindRenderbuffer(gl.RENDERBUFFER, rb);
  83   gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, canvas.width, canvas.height);
  84   wtu.glErrorShouldBe(gl, gl.NO_ERROR,
  85             "allocating renderbuffer storage of a newly created renderbuffer should succeed.");
  86
  87   gl.framebufferRenderbuffer(
  88       gl.FRAMEBUFFER,
  89       gl.COLOR_ATTACHMENT0,
  90       gl.RENDERBUFFER,
  91       rb);
  92   wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION,
  93             "trying to attach a renderbuffer to the default framebuffer should generate INVALID_OPERATION.");
  94
  95   var fbtex = gl.createTexture();
  96   gl.bindTexture(gl.TEXTURE_2D, fbtex);
  97   gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, canvas.width, canvas.height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
  98   var fb = gl.createFramebuffer();
  99
 100   gl.bindFramebuffer(gl.FRAMEBUFFER, fb);
 101   wtu.glErrorShouldBe(gl, gl.NO_ERROR,
 102             "binding a newly created framebuffer should succeed.");
 103
 104   var target = desktopGL.READ_FRAMEBUFFER
 105   gl.getFramebufferAttachmentParameter(
 106      target,
 107      gl.COLOR_ATTACHMENT0,
 108      gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE);
 109   wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
 110             "calling getFramebufferAttachmentParameter with target = READ_FRAMEBUFFER should generate INVALID_ENUM.");
 111   assertMsg(gl.checkFramebufferStatus(target) == 0,
 112             "calling checkFramebufferStatus with target = READ_FRAMEBUFFER should return 0.");
 113   wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
 114             "calling checkFramebufferStatus with target = READ_FRAMEBUFFER should generate INVALID_ENUM.");
 115   gl.bindFramebuffer(target, gl.createFramebuffer());
 116   wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
 117             "calling bindFramebuffer with target = READ_FRAMEBUFFER should generate INVALID_ENUM.");
 118   assertMsg(fb == gl.getParameter(gl.FRAMEBUFFER_BINDING),
 119             "calling bindFramebuffer with target = READ_FRAMEBUFFER should not change FRAMEBUFFER_BINDING.");
 120   gl.getFramebufferAttachmentParameter(target, gl.COLOR_ATTACHMENT0, gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE);
 121   wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
 122             "calling getFramebufferAttachmentParameter with target = READ_FRAMEBUFFER should generate INVALID_ENUM.");
 123   gl.framebufferTexture2D(target, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, fbtex, 0);
 124   wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
 125             "calling framebufferTexImage2D with target = READ_FRAMEBUFFER should generate INVALID_ENUM.");
 126   gl.framebufferRenderbuffer(target, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rb);
 127   wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
 128             "calling framebufferRenderbuffer with target = READ_FRAMEBUFFER should generate INVALID_ENUM.");
 129
 130   var attachment = desktopGL.COLOR_ATTACHMENT1
 131   gl.framebufferTexture2D(gl.FRAMEBUFFER, attachment, gl.TEXTURE_2D, fbtex, 0);
 132   wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
 133             "calling framebufferTexImage2D with attachment = COLOR_ATTACHMENT1 should generate INVALID_ENUM.");
 134   gl.framebufferRenderbuffer(gl.FRAMEBUFFER, attachment, gl.RENDERBUFFER, rb);
 135   wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
 136             "calling framebufferRenderbuffer with attachment = COLOR_ATTACHMENT1 should generate INVALID_ENUM.");
 137
 138   gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER,
 139                                        gl.COLOR_ATTACHMENT0,
 140                                        desktopGL.FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING);
 141   wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
 142             "calling getFramebufferAttachmentParameter with pname = GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING should generate INVALID_ENUM.");
 143
 144   gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, fbtex, 0);
 145   wtu.glErrorShouldBe(gl, gl.NO_ERROR,
 146             "attaching a texture to a framebuffer should succeed.");
 147
 148   gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, null, 0);
 149   wtu.glErrorShouldBe(gl, gl.NO_ERROR,
 150             "detaching a texture from a framebuffer should succeed.");
 151
 152   gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, fbtex, 1);
 153   wtu.glErrorShouldBe(gl, gl.INVALID_VALUE,
 154             "calling framebufferTexture2D with non-zero mipmap level should generate INVALID_VALUE.");
 155
 156   gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rb);
 157   wtu.glErrorShouldBe(gl, gl.NO_ERROR,
 158             "attaching a renderbuffer to a framebuffer should succeed.");
 159
 160   gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, null);
 161   wtu.glErrorShouldBe(gl, gl.NO_ERROR,
 162             "detaching a renderbuffer from a framebuffer should succeed.");
 163
 164   gl.bindFramebuffer(gl.FRAMEBUFFER, null);
 165   wtu.glErrorShouldBe(gl, gl.NO_ERROR,
 166             "binding default (null) framebuffer should succeed.");
 167 }
 168
 169 debug("");
 170 var successfullyParsed = true;
 171
 172 </script>
 173 <script src="../../js/js-test-post.js"></script>
 174
 175 </body>
 176 </html>