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1 <!-- | |
2 | |
3 /* | |
4 ** Copyright (c) 2012 The Khronos Group Inc. | |
Ken Russell (switch to Gerrit)
2013/05/13 20:00:35
2013.
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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 OES_texture_float_linear Conformance Tests</title> | |
33 <link rel="stylesheet" href="../../resources/js-test-style.css"/> | |
34 <script src="../../resources/desktop-gl-constants.js" type="text/javascript"></s cript> | |
35 <script src="../../resources/js-test-pre.js"></script> | |
36 <script src="../resources/webgl-test.js"></script> | |
37 <script src="../resources/webgl-test-utils.js"></script> | |
38 </head> | |
39 <body> | |
40 <div id="description"></div> | |
41 <canvas id="canvas" style="width: 50px; height: 50px;"> </canvas> | |
42 <div id="console"></div> | |
43 <!-- Shaders for testing floating-point textures --> | |
44 <script id="testFragmentShader" type="x-shader/x-fragment"> | |
45 uniform sampler2D tex; | |
46 void main() | |
47 { | |
48 gl_FragColor = texture2D(tex, vec2(0.5, 0.5)) * vec4(4.0, 2.0, 0.5, 1); | |
49 } | |
50 </script> | |
51 <script id="texCubFshader" type="x-shader/x-fragment"> | |
Ken Russell (switch to Gerrit)
2013/05/13 20:00:35
Typo here and throughout: texCubFshader -> texCube
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52 uniform samplerCube tex; | |
53 void main() | |
54 { | |
55 gl_FragColor = textureCube(tex, normalize(vec3(0.5, 0.5, 1))) * vec4(4.0, 2. 0, 0.5, 1); | |
56 } | |
57 </script> | |
58 <!-- Shaders for testing floating-point render targets --> | |
59 <script id="positionVertexShader" type="x-shader/x-vertex"> | |
60 attribute vec4 vPosition; | |
61 void main() | |
62 { | |
63 gl_Position = vPosition; | |
64 } | |
65 </script> | |
66 <script> | |
67 "use strict"; | |
68 description("This test verifies the functionality of the OES_texture_float_linea r extension, if it is available."); | |
69 | |
70 debug(""); | |
71 | |
72 var wtu = WebGLTestUtils; | |
73 var canvas = document.getElementById("canvas"); | |
74 var gl = wtu.create3DContext(canvas); | |
75 if (!gl) { | |
76 testFailed("WebGL context does not exist"); | |
77 } else { | |
78 testPassed("WebGL context exists"); | |
79 | |
80 if (!gl.getExtension("OES_texture_float")) { | |
81 testPassed("No OES_texture_float support -- this is legal"); | |
82 } else { | |
83 testPassed("Successfully enabled OES_texture_float extension"); | |
84 | |
85 // Before OES_texture_float_linear extension is enabled | |
86 var extensionEabled = false; | |
87 runTestSuit(extensionEabled); | |
Ken Russell (switch to Gerrit)
2013/05/13 20:00:35
Typo here and throughout: runTestSuit -> runTestSu
| |
88 | |
89 if (!gl.getExtension("OES_texture_float_linear")) | |
90 testPassed("No OES_texture_float_linear support -- this is legal"); | |
91 else { | |
92 // OES_texture_float_linear extension is enabled | |
93 extensionEabled = true; | |
94 runTestSuit(extensionEabled); | |
95 } | |
96 } | |
97 } | |
98 | |
99 function runTestSuit(extensionEabled) | |
Ken Russell (switch to Gerrit)
2013/05/13 20:00:35
Typo here and throughout: extensionEabled -> exten
| |
100 { | |
101 var magF = [gl.NEAREST, gl.LINEAR]; | |
102 var minF = [gl.NEAREST, gl.LINEAR, gl.NEAREST_MIPMAP_NEAREST, gl.NEAREST_MIP MAP_LINEAR, gl.LINEAR_MIPMAP_NEAREST, gl.LINEAR_MIPMAP_LINEAR]; | |
103 // TEXTURE_2D | |
104 var program = wtu.setupProgram(gl, ["positionVertexShader", "testFragmentSha der"]); | |
105 gl.useProgram(program); | |
106 wtu.setupUnitQuad(gl); | |
107 for (var kk = 0; kk < 2; ++kk) { | |
108 for (var ii = 0; ii < 6; ++ii) { | |
109 var linear = false; | |
110 if (magF[kk] == gl.LINEAR || (minF[ii] != gl.NEAREST && minF[ii] != gl.NEAREST_MIPMAP_NEAREST)) | |
111 linear = true; | |
112 var color = (!extensionEabled && linear) ? [0, 0, 0, 255] : [255, 25 5, 255, 255]; | |
113 runEachTest(gl.TEXTURE_2D, magF[kk], minF[ii], linear, extensionEabl ed, color, linear); | |
114 } | |
115 } | |
116 | |
117 // TEXTURE_CUBE_MAP | |
118 var programCube = wtu.setupProgram(gl, ["positionVertexShader", "texCubFshad er"]); | |
119 gl.useProgram(programCube); | |
120 wtu.setupUnitQuad(gl); | |
121 for (var kk = 0; kk < 2; ++kk) { | |
122 for (var ii = 0; ii < 6; ++ii) { | |
123 var linear = false; | |
124 if (magF[kk] == gl.LINEAR || (minF[ii] != gl.NEAREST && minF[ii] != gl.NEAREST_MIPMAP_NEAREST)) | |
125 linear = true; | |
126 var color = (!extensionEabled && linear) ? [0, 0, 0, 255] : [255, 25 5, 255, 255]; | |
127 runEachTest(gl.TEXTURE_CUBE_MAP, magF[kk], minF[ii], linear, extensi onEabled, color, linear); | |
128 } | |
129 } | |
130 | |
131 } | |
132 | |
133 function runEachTest(textureTarget, magFilter, minFilter, linear, extensionEnabl ed, expected, expectFailure) | |
Ken Russell (switch to Gerrit)
2013/05/13 20:00:35
The "expectFailure" argument should be removed; se
| |
134 { | |
135 var format = gl.RGBA; | |
136 var numberOfChannels = 4; | |
137 debug(""); | |
138 debug("testing target: " + wtu.glEnumToString(gl,textureTarget) + | |
139 ", testing format: " + wtu.glEnumToString(gl, format) + | |
140 ", magFilter is: " + wtu.glEnumToString(gl, magFilter) + | |
141 ", minFilter is: " + wtu.glEnumToString(gl, minFilter) + | |
142 ", OES_texture_float_linear is " + (extensionEnabled ? "enabled": "no t enabled") | |
143 ); | |
144 var texture = gl.createTexture(); | |
145 // Generate data. | |
146 var width = 1; | |
147 var height = 1; | |
Ken Russell (switch to Gerrit)
2013/05/13 20:00:35
Please use a larger texture, at least 2x2 if not 4
Jun Jiang
2013/05/14 02:04:00
I used size 4x4 in test and changed to 1*1 when up
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148 var color = [0.25, 0.5, 2.0, 1.0]; | |
149 var data = new Float32Array(width * height * numberOfChannels); | |
150 for (var ii = 0; ii < width; ++ii) | |
151 for (var jj = 0; jj < height; ++jj) | |
152 for (var kk = 0; kk < numberOfChannels; kk++) | |
153 data[(jj* width + ii)*numberOfChannels + kk] = color[kk]; | |
154 | |
155 gl.bindTexture(textureTarget, texture); | |
156 gl.texParameteri(textureTarget, gl.TEXTURE_MAG_FILTER, magFilter); | |
157 gl.texParameteri(textureTarget, gl.TEXTURE_MIN_FILTER, minFilter); | |
158 gl.texParameteri(textureTarget, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); | |
159 gl.texParameteri(textureTarget, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); | |
160 | |
161 if (textureTarget == gl.TEXTURE_2D) { | |
162 gl.texImage2D(gl.TEXTURE_2D, 0, format, width, height, 0, format, gl.FLO AT, data); | |
163 if (minFilter != gl.NEAREST && minFilter != gl.LINEAR) | |
164 gl.generateMipmap(gl.TEXTURE_2D); | |
165 } | |
166 else if (textureTarget == gl.TEXTURE_CUBE_MAP) { | |
167 var targets = [ | |
168 gl.TEXTURE_CUBE_MAP_POSITIVE_X, | |
169 gl.TEXTURE_CUBE_MAP_NEGATIVE_X, | |
170 gl.TEXTURE_CUBE_MAP_POSITIVE_Y, | |
171 gl.TEXTURE_CUBE_MAP_NEGATIVE_Y, | |
172 gl.TEXTURE_CUBE_MAP_POSITIVE_Z, | |
173 gl.TEXTURE_CUBE_MAP_NEGATIVE_Z]; | |
174 for (var tt = 0; tt < targets.length; ++tt) { | |
175 gl.texImage2D(targets[tt], 0, format, width, height, 0, format, gl.FLOAT, data); | |
176 } | |
177 if (minFilter != gl.NEAREST && minFilter != gl.LINEAR) | |
178 gl.generateMipmap(gl.TEXTURE_CUBE_MAP); | |
179 } | |
180 // wtu.clearAndDrawUnitQuad(gl); | |
Ken Russell (switch to Gerrit)
2013/05/13 20:00:35
Remove commented-out code.
| |
181 wtu.drawQuad(gl); | |
182 if (!linear) { | |
Ken Russell (switch to Gerrit)
2013/05/13 20:00:35
The error checks here are incorrect.
According to
Jun Jiang
2013/05/14 02:04:00
Thanks for your comments.
Here I set the texture s
| |
183 glErrorShouldBe(gl, gl.NO_ERROR, "floating-point texture with non-Linear filter would succeed no matter OES_texture_float_linear is enabled or not"); | |
184 } else if (expectFailure) { | |
185 glErrorShouldBe(gl, gl.NO_ERROR, "floating-point texture with Linear fil ter would produe [0, 0, 0, 1.0] if OES_texture_float_linear isn't enabled"); | |
186 } else { | |
187 glErrorShouldBe(gl, gl.NO_ERROR, "floating-point texture with Linear fil ter would succeed if OES_texture_float_linear is enabled"); | |
188 } | |
189 | |
190 wtu.checkCanvas(gl, expected, "should be " + expected[0] + "," + expected[1] + "," + expected[2] + "," + expected[3]); | |
191 } | |
192 | |
193 debug(""); | |
194 // Needs to be global for shouldBe to see it. | |
195 var pixels; | |
196 var successfullyParsed = true; | |
197 </script> | |
198 <script src="../../resources/js-test-post.js"></script> | |
199 | |
200 </body> | |
201 </html> | |
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