OLD | NEW |
(Empty) | |
| 1 /* |
| 2 ** Copyright (c) 2013 The Khronos Group Inc. |
| 3 ** |
| 4 ** Permission is hereby granted, free of charge, to any person obtaining a |
| 5 ** copy of this software and/or associated documentation files (the |
| 6 ** "Materials"), to deal in the Materials without restriction, including |
| 7 ** without limitation the rights to use, copy, modify, merge, publish, |
| 8 ** distribute, sublicense, and/or sell copies of the Materials, and to |
| 9 ** permit persons to whom the Materials are furnished to do so, subject to |
| 10 ** the following conditions: |
| 11 ** |
| 12 ** The above copyright notice and this permission notice shall be included |
| 13 ** in all copies or substantial portions of the Materials. |
| 14 ** |
| 15 ** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| 16 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| 17 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
| 18 ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY |
| 19 ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, |
| 20 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE |
| 21 ** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS. |
| 22 */ |
| 23 |
| 24 function generateTest(pixelFormat, pixelType, pathToTestRoot, prologue) { |
| 25 var wtu = WebGLTestUtils; |
| 26 var gl = null; |
| 27 var textureLoc = null; |
| 28 var successfullyParsed = false; |
| 29 var imgCanvas; |
| 30 var red = [255, 0, 0]; |
| 31 var green = [0, 255, 0]; |
| 32 |
| 33 var init = function() |
| 34 { |
| 35 description('Verify texImage2D and texSubImage2D code paths taking SVG i
mage elements (' + pixelFormat + '/' + pixelType + ')'); |
| 36 |
| 37 gl = wtu.create3DContext("example"); |
| 38 |
| 39 if (!prologue(gl)) { |
| 40 finishTest(); |
| 41 return; |
| 42 } |
| 43 |
| 44 var program = wtu.setupTexturedQuad(gl); |
| 45 |
| 46 gl.clearColor(0,0,0,1); |
| 47 gl.clearDepth(1); |
| 48 |
| 49 textureLoc = gl.getUniformLocation(program, "tex"); |
| 50 |
| 51 wtu.loadTexture(gl, pathToTestRoot + "/resources/red-green.svg", runTest
); |
| 52 } |
| 53 |
| 54 function runOneIteration(image, useTexSubImage2D, flipY, topColor, bottomCol
or) |
| 55 { |
| 56 debug('Testing ' + (useTexSubImage2D ? 'texSubImage2D' : 'texImage2D') + |
| 57 ' with flipY=' + flipY); |
| 58 gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT); |
| 59 // Disable any writes to the alpha channel |
| 60 gl.colorMask(1, 1, 1, 0); |
| 61 var texture = gl.createTexture(); |
| 62 // Bind the texture to texture unit 0 |
| 63 gl.bindTexture(gl.TEXTURE_2D, texture); |
| 64 // Set up texture parameters |
| 65 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); |
| 66 gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); |
| 67 // Set up pixel store parameters |
| 68 gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, flipY); |
| 69 gl.pixelStorei(gl.UNPACK_PREMULTIPLY_ALPHA_WEBGL, false); |
| 70 gl.pixelStorei(gl.UNPACK_COLORSPACE_CONVERSION_WEBGL, gl.NONE); |
| 71 // Upload the image into the texture |
| 72 if (useTexSubImage2D) { |
| 73 // Initialize the texture to black first |
| 74 gl.texImage2D(gl.TEXTURE_2D, 0, gl[pixelFormat], image.width, image.
height, 0, |
| 75 gl[pixelFormat], gl[pixelType], null); |
| 76 gl.texSubImage2D(gl.TEXTURE_2D, 0, 0, 0, gl[pixelFormat], gl[pixelTy
pe], image); |
| 77 } else { |
| 78 gl.texImage2D(gl.TEXTURE_2D, 0, gl[pixelFormat], gl[pixelFormat], gl
[pixelType], image); |
| 79 } |
| 80 |
| 81 // Point the uniform sampler to texture unit 0 |
| 82 gl.uniform1i(textureLoc, 0); |
| 83 // Draw the triangles |
| 84 wtu.clearAndDrawUnitQuad(gl, [0, 0, 0, 255]); |
| 85 // Check a few pixels near the top and bottom and make sure they have |
| 86 // the right color. |
| 87 debug("Checking lower left corner"); |
| 88 wtu.checkCanvasRect(gl, 4, 4, 2, 2, bottomColor, |
| 89 "shouldBe " + bottomColor); |
| 90 debug("Checking upper left corner"); |
| 91 wtu.checkCanvasRect(gl, 4, gl.canvas.height - 8, 2, 2, topColor, |
| 92 "shouldBe " + topColor); |
| 93 } |
| 94 |
| 95 function runTest(image) |
| 96 { |
| 97 runOneIteration(image, false, true, red, green); |
| 98 runOneIteration(image, false, false, green, red); |
| 99 runOneIteration(image, true, true, red, green); |
| 100 runOneIteration(image, true, false, green, red); |
| 101 finishTest(); |
| 102 } |
| 103 |
| 104 return init; |
| 105 } |
OLD | NEW |