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| 1 <!-- |
| 2 |
| 3 /* |
| 4 ** Copyright (c) 2012 The Khronos Group Inc. |
| 5 ** |
| 6 ** Permission is hereby granted, free of charge, to any person obtaining a |
| 7 ** copy of this software and/or associated documentation files (the |
| 8 ** "Materials"), to deal in the Materials without restriction, including |
| 9 ** without limitation the rights to use, copy, modify, merge, publish, |
| 10 ** distribute, sublicense, and/or sell copies of the Materials, and to |
| 11 ** permit persons to whom the Materials are furnished to do so, subject to |
| 12 ** the following conditions: |
| 13 ** |
| 14 ** The above copyright notice and this permission notice shall be included |
| 15 ** in all copies or substantial portions of the Materials. |
| 16 ** |
| 17 ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 18 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 19 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 20 ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 21 ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 22 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 23 ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
| 24 */ |
| 25 |
| 26 --> |
| 27 |
| 28 <!DOCTYPE html> |
| 29 <html> |
| 30 <head> |
| 31 <meta charset="utf-8"> |
| 32 <title>WebGL Canvas Conformance Tests</title> |
| 33 <link rel="stylesheet" href="../../resources/js-test-style.css"/> |
| 34 <script src="../../resources/js-test-pre.js"></script> |
| 35 <script src="../resources/webgl-test.js"></script> |
| 36 <script src="../resources/webgl-test-utils.js"></script> |
| 37 </head> |
| 38 <body> |
| 39 <div id="description"></div> |
| 40 <div id="console"></div> |
| 41 |
| 42 <script id="vshader" type="x-shader/x-vertex"> |
| 43 attribute vec4 vPosition; |
| 44 void main() |
| 45 { |
| 46 gl_Position = vPosition; |
| 47 } |
| 48 </script> |
| 49 |
| 50 <script id="fshader" type="x-shader/x-fragment"> |
| 51 void main() |
| 52 { |
| 53 gl_FragColor = vec4(1.0,0.0,0.0,1.0); |
| 54 } |
| 55 </script> |
| 56 |
| 57 <script> |
| 58 function fail(x,y, buf, shouldBe) |
| 59 { |
| 60 var i = (y*50+x) * 4; |
| 61 var reason = "pixel at ("+x+","+y+") is ("+buf[i]+","+buf[i+1]+","+buf[i+2]+",
"+buf[i+3]+"), should be "+shouldBe; |
| 62 testFailed(reason); |
| 63 } |
| 64 |
| 65 function pass() |
| 66 { |
| 67 testPassed("drawing is correct"); |
| 68 } |
| 69 |
| 70 function drawTriangleTest(gl) |
| 71 { |
| 72 gl.viewport(0, 0, 50, 50); |
| 73 var vertexObject = gl.createBuffer(); |
| 74 gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject); |
| 75 gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([ 0,0.5,0, -0.5,-0.5,0, 0.5,-0
.5,0 ]), gl.STATIC_DRAW); |
| 76 gl.enableVertexAttribArray(0); |
| 77 gl.vertexAttribPointer(0, 3, gl.FLOAT, false, 0, 0); |
| 78 |
| 79 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); |
| 80 gl.drawArrays(gl.TRIANGLES, 0, 3); |
| 81 |
| 82 var buf = new Uint8Array(50 * 50 * 4); |
| 83 gl.readPixels(0, 0, 50, 50, gl.RGBA, gl.UNSIGNED_BYTE, buf); |
| 84 |
| 85 // Test several locations |
| 86 // First line should be all black |
| 87 for (var i = 0; i < 50; ++i) { |
| 88 if (buf[i*4] != 0 || buf[i*4+1] != 0 || buf[i*4+2] != 0 || buf[i*4+3] != 255
) { |
| 89 fail(i, 0, buf, "(0,0,0,255)"); |
| 90 return; |
| 91 } |
| 92 } |
| 93 // Line 15 should be red for at least 10 red pixels starting 20 pixels in |
| 94 var offset = (15*50+20) * 4; |
| 95 for (var i = 0; i < 10; ++i) { |
| 96 if (buf[offset+i*4] != 255 || buf[offset+i*4+1] != 0 || buf[offset+i*4+2] !=
0 || buf[offset+i*4+3] != 255) { |
| 97 fail(20 + i, 15, buf, "(255,0,0,255)"); |
| 98 return; |
| 99 } |
| 100 } |
| 101 // Last line should be all black |
| 102 offset = (49*50) * 4; |
| 103 for (var i = 0; i < 50; ++i) { |
| 104 if (buf[offset+i*4] != 0 || buf[offset+i*4+1] != 0 || buf[offset+i*4+2] != 0
|| buf[offset+i*4+3] != 255) { |
| 105 fail(i, 49, buf, "(0,0,0,255)"); |
| 106 return; |
| 107 } |
| 108 } |
| 109 } |
| 110 |
| 111 description("This test ensures WebGL implementations correctly implement drawing
bufferWidth/Height."); |
| 112 |
| 113 debug(""); |
| 114 |
| 115 var wtu = WebGLTestUtils; |
| 116 var err; |
| 117 var maxSize; |
| 118 var gl = wtu.create3DContext(); |
| 119 if (!gl) { |
| 120 testFailed("context does not exist"); |
| 121 } else { |
| 122 testPassed("context exists"); |
| 123 |
| 124 program = createProgram(gl, "vshader", "fshader", ["vPosition"]); |
| 125 shouldBeNonNull("program"); |
| 126 gl.useProgram(program); |
| 127 gl.enable(gl.DEPTH_TEST); |
| 128 gl.disable(gl.BLEND); |
| 129 gl.clearColor(0, 0, 0, 1); |
| 130 gl.clearDepth(1); |
| 131 shouldBe('gl.getError()', 'gl.NO_ERROR'); |
| 132 |
| 133 debug(""); |
| 134 debug("Checking drawingBufferWidth/drawingBufferHeight"); |
| 135 |
| 136 // Check that a canvas with no width or height is 300x150 pixels |
| 137 shouldBe('gl.drawingBufferWidth', 'gl.canvas.width'); |
| 138 shouldBe('gl.drawingBufferHeight', 'gl.canvas.height'); |
| 139 |
| 140 // Check that changing the canvas size to something too large falls back to re
asonable values. |
| 141 maxSize = gl.getParameter(gl.MAX_VIEWPORT_DIMS); |
| 142 shouldBeTrue('maxSize[0] > 0'); |
| 143 shouldBeTrue('maxSize[1] > 0'); |
| 144 |
| 145 // debug("MAX_VIEWPORT_DIMS = " + maxSize[0] + "x" + maxSize[1]); |
| 146 gl.canvas.width = maxSize[0] * 4; |
| 147 gl.canvas.height = maxSize[1] * 4; |
| 148 shouldBeTrue('gl.drawingBufferWidth > 0'); |
| 149 shouldBeTrue('gl.drawingBufferHeight > 0'); |
| 150 shouldBeTrue('gl.drawingBufferWidth <= maxSize[0]'); |
| 151 shouldBeTrue('gl.drawingBufferHeight <= maxSize[1]'); |
| 152 shouldBe('gl.getError()', 'gl.NO_ERROR'); |
| 153 |
| 154 debug(""); |
| 155 debug("Checking scaling up then back down to 50/50, drawing still works."); |
| 156 gl.canvas.width = 50; |
| 157 gl.canvas.height = 50; |
| 158 shouldBeTrue('gl.drawingBufferWidth == 50'); |
| 159 shouldBeTrue('gl.drawingBufferHeight == 50'); |
| 160 shouldBe('gl.getError()', 'gl.NO_ERROR'); |
| 161 drawTriangleTest(gl); |
| 162 shouldBe('gl.getError()', 'gl.NO_ERROR'); |
| 163 } |
| 164 debug("") |
| 165 successfullyParsed = true; |
| 166 </script> |
| 167 <script src="../../resources/js-test-post.js"></script> |
| 168 </body> |
| 169 </html> |
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Chromium Code Reviews
Issue 10399113:
Roll webgl conformance tests to r17874: part 2, adding r17874 (Closed)
Base URL: svn://chrome-svn/chrome/trunk/deps/