| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <!-- |
| |
| /* |
| ** Copyright (c) 2012 The Khronos Group Inc. |
| ** |
| ** Permission is hereby granted, free of charge, to any person obtaining a |
| ** copy of this software and/or associated documentation files (the |
| ** "Materials"), to deal in the Materials without restriction, including |
| ** without limitation the rights to use, copy, modify, merge, publish, |
| ** distribute, sublicense, and/or sell copies of the Materials, and to |
| ** permit persons to whom the Materials are furnished to do so, subject to |
| ** the following conditions: |
| ** |
| ** The above copyright notice and this permission notice shall be included |
| ** in all copies or substantial portions of the Materials. |
| ** |
| ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
| */ |
| |
| --> |
| <link rel="stylesheet" type="text/css" href="../unit.css" /> |
| <script type="application/x-javascript" src="../unit.js"></script> |
| <script type="application/x-javascript" src="../util.js"></script> |
| <script type="application/x-javascript"> |
| |
| Tests.startUnit = function () { |
| var canvas = document.getElementById('gl'); |
| var gl = wrapGLContext(getGLContext(canvas)); |
| return [gl]; |
| } |
| |
| Tests.setup = function(gl) { |
| var tex = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_2D, tex); |
| var texCubeMap = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_CUBE_MAP, texCubeMap); |
| return [gl] |
| } |
| |
| Tests.teardown = function(gl,tex,texCubeMap) { |
| gl.bindTexture(gl.TEXTURE_2D, null); |
| gl.bindTexture(gl.TEXTURE_CUBE_MAP, null); |
| gl.deleteTexture(tex); |
| gl.deleteTexture(texCubeMap); |
| } |
| |
| |
| Tests.testTexImage2D = function(gl) { |
| gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 0,0,16,16,0); |
| gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,0,1,1); |
| gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,0,2,1); |
| gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,0,1,2); |
| gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 0,0,16,16); |
| gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0, 15,15,1,1); |
| gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 1,1, 0,0,15,15); |
| gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 15,15, 0,0,1,1); |
| var valid_targets = [ |
| gl.TEXTURE_2D, |
| gl.TEXTURE_CUBE_MAP_POSITIVE_X, |
| gl.TEXTURE_CUBE_MAP_NEGATIVE_X, |
| gl.TEXTURE_CUBE_MAP_POSITIVE_Y, |
| gl.TEXTURE_CUBE_MAP_NEGATIVE_Y, |
| gl.TEXTURE_CUBE_MAP_POSITIVE_Z, |
| gl.TEXTURE_CUBE_MAP_NEGATIVE_Z |
| ]; |
| valid_targets.forEach(function(t) { |
| assertOk(function(){ |
| gl.copyTexImage2D(t, 0, gl.RGBA, 0,0,1,1,0); |
| gl.copyTexSubImage2D(t, 0, 0,0,0,0,1,1); |
| }); |
| }); |
| } |
| Tests.testRoundtrip = function(gl) { |
| var sh = new Filter(gl, 'identity-flip-vert', 'identity-frag'); |
| gl.clearColor(1.0, 0.0, 0.0, 1.0); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| var buf = new Uint8Array(4); |
| gl.readPixels(0,0,1,1,gl.RGBA, gl.UNSIGNED_BYTE, buf); |
| assertEquals([255,0,0,255], [buf[0], buf[1], buf[2], buf[3]]); |
| // red texture |
| gl.clearColor(0.0, 0.0, 0.0, 0.0); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, document.getElementById('gl')); |
| gl.clearColor(1.0, 0.0, 0.0, 1.0); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| gl.copyTexSubImage2D(gl.TEXTURE_2D, 0, 0,0,0,0,16,16); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); |
| gl.clearColor(0.0, 0.0, 1.0, 1.0); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| // blue framebuffer |
| gl.readPixels(0,0,1,1,gl.RGBA, gl.UNSIGNED_BYTE, buf); |
| assertEquals([0,0,255,255], [buf[0], buf[1], buf[2], buf[3]]); |
| sh.apply(); // paint with texture |
| gl.readPixels(0,0,1,1,gl.RGBA, gl.UNSIGNED_BYTE, buf); |
| assertEquals([255,0,0,255], [buf[0], buf[1], buf[2], buf[3]]); |
| sh.destroy(); |
| } |
| |
| Tests.endUnit = function(gl) { |
| } |
| |
| </script> |
| <script id="identity-flip-vert" type="x-shader/x-vertex"> |
| attribute vec3 Vertex; |
| attribute vec2 Tex; |
| |
| varying vec4 texCoord0; |
| void main() |
| { |
| texCoord0 = vec4(Tex.s, 1.0-Tex.t, 0.0, 0.0); |
| gl_Position = vec4(Vertex, 1.0); |
| } |
| </script> |
| <script id="identity-frag" type="x-shader/x-fragment"> |
| precision mediump float; |
| |
| uniform sampler2D Texture; |
| |
| varying vec4 texCoord0; |
| void main() |
| { |
| vec4 c = texture2D(Texture, texCoord0.st); |
| gl_FragColor = c; |
| } |
| </script> |
| <style>canvas{ position:absolute; }</style> |
| </head><body> |
| <canvas id="gl" width="16" height="16"></canvas> |
| </body></html> |