| <!-- |
| Copyright (c) 2019 The Khronos Group Inc. |
| Use of this source code is governed by an MIT-style license that can be |
| found in the LICENSE.txt file. |
| --> |
| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>WebGL2 Non-Power of 2 texture conformance test.</title> |
| <link rel="stylesheet" href="../../../resources/js-test-style.css"/> |
| <script src="../../../js/js-test-pre.js"></script> |
| <script src="../../../js/webgl-test-utils.js"></script> |
| </head> |
| <body> |
| <canvas id="example" width="5" height="3" style="width: 40px; height: 30px;"></canvas> |
| <div id="description"></div> |
| <div id="console"></div> |
| <script id="vshader" type="x-shader/x-vertex"> |
| attribute vec4 vPosition; |
| attribute vec2 texCoord0; |
| varying vec2 texCoord; |
| void main() |
| { |
| gl_Position = vPosition; |
| texCoord = texCoord0; |
| } |
| </script> |
| |
| <script id="fshader" type="x-shader/x-fragment"> |
| precision mediump float; |
| uniform samplerCube tex; |
| varying vec2 texCoord; |
| void main() |
| { |
| gl_FragColor = textureCube(tex, normalize(vec3(texCoord, 1))); |
| } |
| </script> |
| <script> |
| "use strict"; |
| description(document.title); |
| var wtu = WebGLTestUtils; |
| var gl = wtu.create3DContext("example", undefined, 2); |
| var program = wtu.setupTexturedQuad(gl); |
| |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); |
| |
| var tests = [ |
| { format: gl.RGBA, |
| type: gl.UNSIGNED_BYTE, |
| color: [192, 0, 128, 64], |
| expected: [192, 0, 128, 64], |
| tolerance: 0, |
| }, |
| { format: gl.RGB, |
| type: gl.UNSIGNED_BYTE, |
| color: [192, 0, 128], |
| expected: [192, 0, 128, 255], |
| tolerance: 0, |
| }, |
| { format: gl.LUMINANCE, |
| type: gl.UNSIGNED_BYTE, |
| color: [192], |
| expected: [192, 192, 192, 255], |
| tolerance: 0, |
| }, |
| { format: gl.ALPHA, |
| type: gl.UNSIGNED_BYTE, |
| color: [64], |
| expected: [0, 0, 0, 64], |
| tolerance: 0, |
| }, |
| { format: gl.LUMINANCE_ALPHA, |
| type: gl.UNSIGNED_BYTE, |
| color: [192, 64], |
| expected: [192, 192, 192, 64], |
| tolerance: 0, |
| }, |
| ]; |
| |
| tests.forEach(function(test) { |
| debug(""); |
| debug("test " + wtu.glEnumToString(gl, test.format) + "/" + wtu.glEnumToString(gl, test.type)); |
| var tex = gl.createTexture(); |
| |
| // Check that an NPOT texture not on level 0 does not generate INVALID_VALUE |
| wtu.fillTexture(gl, tex, 5, 3, test.color, 1, test.format, test.type); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, |
| "gl.texImage2D with NPOT texture with level > 0 should succeed"); |
| |
| // Check that an NPOT texture on level 0 succeeds |
| wtu.fillTexture(gl, tex, 5, 3, test.color, 0, test.format, test.type); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, |
| "gl.texImage2D with NPOT texture at level 0 should succeed"); |
| |
| // Check that generateMipmap succeeds on NPOT |
| gl.generateMipmap(gl.TEXTURE_2D); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, |
| "gl.generateMipmap with NPOT texture should succeed"); |
| |
| // Check that nothing is drawn if filtering is not correct for NPOT |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT); |
| |
| wtu.clearAndDrawUnitQuad(gl); |
| wtu.checkCanvas( |
| gl, test.expected, |
| "NPOT texture with TEXTURE_WRAP set to REPEAT should draw"); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); |
| |
| 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_MIN_FILTER, gl.NEAREST_MIPMAP_LINEAR); |
| |
| wtu.clearAndDrawUnitQuad(gl); |
| wtu.checkCanvas( |
| gl, test.expected, |
| "NPOT texture with TEXTURE_MIN_FILTER not NEAREST or LINEAR should draw"); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); |
| |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR); |
| |
| wtu.clearAndDrawUnitQuad(gl); |
| wtu.checkCanvas( |
| gl, test.expected, |
| "NPOT texture with TEXTURE_MIN_FILTER set to LINEAR should draw."); |
| |
| gl.copyTexImage2D(gl.TEXTURE_2D, 1, test.format, 0, 0, 5, 3, 0); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, |
| "copyTexImage2D with NPOT texture with level > 0 should succeed."); |
| |
| // Check that generateMipmap for an POT texture succeeds |
| wtu.fillTexture(gl, tex, 2, 2, test.color, 0, test.format); |
| gl.generateMipmap(gl.TEXTURE_2D); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, |
| "gl.texImage2D and gl.generateMipmap with POT texture at level 0 should succeed"); |
| |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT); |
| gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT); |
| |
| wtu.clearAndDrawUnitQuad(gl); |
| wtu.checkCanvas( |
| gl, test.expected, |
| "POT texture with TEXTURE_MIN_FILTER set to LINEAR_MIPMAP_LINEAR should draw."); |
| wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup."); |
| }); |
| |
| var successfullyParsed = true; |
| |
| </script> |
| <script src="../../../js/js-test-post.js"></script> |
| |
| </body> |
| </html> |
| |
