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| 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 <title>WebGL Framebuffer Test</title> | |
| 11 <link rel="stylesheet" href="../resources/js-test-style.css"/> | |
| 12 <script src="../resources/js-test-pre.js"></script> | |
| 13 <script src="resources/webgl-test.js"></script> | |
| 14 </head> | |
| 15 <body> | |
| 16 <div id="description"></div> | |
| 17 <div id="console"></div> | |
| 18 <canvas id="canvas" width="2" height="2"> </canvas> | |
| 19 <script> | |
| 20 description("This tests framebuffer/renderbuffer-related functions"); | |
| 21 | |
| 22 debug(""); | |
| 23 debug("Canvas.getContext"); | |
| 24 | |
| 25 var canvas = document.getElementById("canvas"); | |
| 26 var gl = create3DContext(canvas); | |
| 27 if (!gl) { | |
| 28 testFailed("context does not exist"); | |
| 29 } else { | |
| 30 testPassed("context exists"); | |
| 31 | |
| 32 debug(""); | |
| 33 debug("Checking framebuffer/renderbuffer stuff."); | |
| 34 | |
| 35 var value = gl.getFramebufferAttachmentParameter( | |
| 36 gl.FRAMEBUFFER, | |
| 37 gl.COLOR_ATTACHMENT0, | |
| 38 gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE); | |
| 39 glErrorShouldBe(gl, gl.INVALID_OPERATION, | |
| 40 "calling getFramebufferAttachmentParameter on the default framebuffe
r should generate INVALID_OPERATION."); | |
| 41 | |
| 42 assertMsg(gl.checkFramebufferStatus(gl.FRAMEBUFFER) == gl.FRAMEBUFFER_COMPLETE
, | |
| 43 "calling checkFramebufferStatus on the default framebuffer should ge
nerate FRAMEBUFFER_COMPLETE."); | |
| 44 | |
| 45 var tex = gl.createTexture(); | |
| 46 gl.bindTexture(gl.TEXTURE_2D, tex); | |
| 47 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); | |
| 48 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); | |
| 49 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); | |
| 50 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); | |
| 51 gl.texImage2D(gl.TEXTURE_2D, | |
| 52 0, // level | |
| 53 gl.RGBA, // internalFormat | |
| 54 canvas.width, // width | |
| 55 canvas.height, // height | |
| 56 0, // border | |
| 57 gl.RGBA, // format | |
| 58 gl.UNSIGNED_BYTE, // type | |
| 59 null); // data | |
| 60 gl.framebufferTexture2D( | |
| 61 gl.FRAMEBUFFER, | |
| 62 gl.COLOR_ATTACHMENT0, | |
| 63 gl.TEXTURE_2D, | |
| 64 tex, | |
| 65 0); | |
| 66 glErrorShouldBe(gl, gl.INVALID_OPERATION, | |
| 67 "trying to attach a texture to default framebuffer should generate I
NVALID_OPERATION."); | |
| 68 | |
| 69 gl.framebufferRenderbuffer( | |
| 70 gl.FRAMEBUFFER, | |
| 71 gl.COLOR_ATTACHMENT0, | |
| 72 gl.RENDERBUFFER, | |
| 73 null); | |
| 74 glErrorShouldBe(gl, gl.INVALID_OPERATION, | |
| 75 "trying to detach default renderbuffer from default framebuffer shou
ld generate INVALID_OPERATION."); | |
| 76 | |
| 77 var rb = gl.createRenderbuffer(); | |
| 78 gl.bindRenderbuffer(gl.RENDERBUFFER, rb); | |
| 79 gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA4, canvas.width, canvas.height)
; | |
| 80 glErrorShouldBe(gl, gl.NO_ERROR, | |
| 81 "allocating renderbuffer storage of a newly created renderbuffer sho
uld succeed."); | |
| 82 | |
| 83 gl.framebufferRenderbuffer( | |
| 84 gl.FRAMEBUFFER, | |
| 85 gl.COLOR_ATTACHMENT0, | |
| 86 gl.RENDERBUFFER, | |
| 87 rb); | |
| 88 glErrorShouldBe(gl, gl.INVALID_OPERATION, | |
| 89 "trying to attach a renderbuffer to the default framebuffer should g
enerate INVALID_OPERATION."); | |
| 90 | |
| 91 var fbtex = gl.createTexture(); | |
| 92 gl.bindTexture(gl.TEXTURE_2D, fbtex); | |
| 93 gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, canvas.width, canvas.height, 0, gl.RG
BA, gl.UNSIGNED_BYTE, null); | |
| 94 var fb = gl.createFramebuffer(); | |
| 95 | |
| 96 gl.bindFramebuffer(gl.FRAMEBUFFER, fb); | |
| 97 glErrorShouldBe(gl, gl.NO_ERROR, | |
| 98 "binding a newly created framebuffer should succeed."); | |
| 99 | |
| 100 var target = 0x8CA8; // GL_READ_FRAMEBUFFER | |
| 101 gl.getFramebufferAttachmentParameter( | |
| 102 target, | |
| 103 gl.COLOR_ATTACHMENT0, | |
| 104 gl.FRAMEBUFFER_ATTACHMENT_OBJECT_TYPE); | |
| 105 glErrorShouldBe(gl, gl.INVALID_ENUM, | |
| 106 "calling getFramebufferAttachmentParameter with target = READ_FRAMEB
UFFER should generate INVALID_ENUM."); | |
| 107 assertMsg(gl.checkFramebufferStatus(target) == 0, | |
| 108 "calling checkFramebufferStatus with target = READ_FRAMEBUFFER shoul
d return 0."); | |
| 109 glErrorShouldBe(gl, gl.INVALID_ENUM, | |
| 110 "calling checkFramebufferStatus with target = READ_FRAMEBUFFER shoul
d generate INVALID_ENUM."); | |
| 111 gl.bindFramebuffer(target, gl.createFramebuffer()); | |
| 112 glErrorShouldBe(gl, gl.INVALID_ENUM, | |
| 113 "calling bindFramebuffer with target = READ_FRAMEBUFFER should gener
ate INVALID_ENUM."); | |
| 114 assertMsg(fb == gl.getParameter(gl.FRAMEBUFFER_BINDING), | |
| 115 "calling bindFramebuffer with target = READ_FRAMEBUFFER should not c
hange FRAMEBUFFER_BINDING."); | |
| 116 gl.getFramebufferAttachmentParameter(target, gl.COLOR_ATTACHMENT0, gl.FRAMEBUF
FER_ATTACHMENT_OBJECT_TYPE); | |
| 117 glErrorShouldBe(gl, gl.INVALID_ENUM, | |
| 118 "calling getFramebufferAttachmentParameter with target = READ_FRAMEB
UFFER should generate INVALID_ENUM."); | |
| 119 gl.framebufferTexture2D(target, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, fbtex, 0)
; | |
| 120 glErrorShouldBe(gl, gl.INVALID_ENUM, | |
| 121 "calling framebufferTexImage2D with target = READ_FRAMEBUFFER should
generate INVALID_ENUM."); | |
| 122 gl.framebufferRenderbuffer(target, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, rb); | |
| 123 glErrorShouldBe(gl, gl.INVALID_ENUM, | |
| 124 "calling framebufferRenderbuffer with target = READ_FRAMEBUFFER shou
ld generate INVALID_ENUM."); | |
| 125 | |
| 126 var attachment = 0x8CE1; // GL_COLOR_ATTACHMENT1 | |
| 127 gl.framebufferTexture2D(gl.FRAMEBUFFER, attachment, gl.TEXTURE_2D, fbtex, 0); | |
| 128 glErrorShouldBe(gl, gl.INVALID_ENUM, | |
| 129 "calling framebufferTexImage2D with attachment = COLOR_ATTACHMENT1 s
hould generate INVALID_ENUM."); | |
| 130 gl.framebufferRenderbuffer(gl.FRAMEBUFFER, attachment, gl.RENDERBUFFER, rb); | |
| 131 glErrorShouldBe(gl, gl.INVALID_ENUM, | |
| 132 "calling framebufferRenderbuffer with attachment = COLOR_ATTACHMENT1
should generate INVALID_ENUM."); | |
| 133 | |
| 134 gl.getFramebufferAttachmentParameter(gl.FRAMEBUFFER, | |
| 135 gl.COLOR_ATTACHMENT0, | |
| 136 0x8210); // GL_FRAMEBUFFER_ATTACHMENT_COL
OR_ENCODING | |
| 137 glErrorShouldBe(gl, gl.INVALID_ENUM, | |
| 138 "calling getFramebufferAttachmentParameter with pname = GL_FRAMEBUFF
ER_ATTACHMENT_COLOR_ENCODING should generate INVALID_ENUM."); | |
| 139 | |
| 140 gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, f
btex, 0); | |
| 141 glErrorShouldBe(gl, gl.NO_ERROR, | |
| 142 "attaching a texture to a framebuffer should succeed."); | |
| 143 | |
| 144 gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, n
ull, 0); | |
| 145 glErrorShouldBe(gl, gl.NO_ERROR, | |
| 146 "detaching a texture from a framebuffer should succeed."); | |
| 147 | |
| 148 gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, f
btex, 1); | |
| 149 glErrorShouldBe(gl, gl.INVALID_VALUE, | |
| 150 "calling framebufferTexture2D with non-zero mipmap level should gene
rate INVALID_VALUE."); | |
| 151 | |
| 152 gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFF
ER, rb); | |
| 153 glErrorShouldBe(gl, gl.NO_ERROR, | |
| 154 "attaching a renderbuffer to a framebuffer should succeed."); | |
| 155 | |
| 156 gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFF
ER, null); | |
| 157 glErrorShouldBe(gl, gl.NO_ERROR, | |
| 158 "detaching a renderbuffer from a framebuffer should succeed."); | |
| 159 | |
| 160 gl.bindFramebuffer(gl.FRAMEBUFFER, null); | |
| 161 glErrorShouldBe(gl, gl.NO_ERROR, | |
| 162 "binding default (null) framebuffer should succeed."); | |
| 163 } | |
| 164 | |
| 165 debug(""); | |
| 166 successfullyParsed = true; | |
| 167 | |
| 168 </script> | |
| 169 <script src="../resources/js-test-post.js"></script> | |
| 170 | |
| 171 </body> | |
| 172 </html> | |
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