| <!-- |
| 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>WebGL clear after copyTexImage2D with a non-pure color</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> |
| <div id="description"></div> |
| <div id="console"></div> |
| <canvas id="canvas" width="128" height="128"> </canvas> |
| <script> |
| "use strict"; |
| // This test verifies a Intel D3D driver bug. |
| var wtu = WebGLTestUtils; |
| var gl = wtu.create3DContext("canvas", {"antialias" : "true"}); |
| |
| function testClearAfterCopyTexImage2DWithoutPureOneOrZero(clearColor, expectedColor) |
| { |
| gl.bindFramebuffer(gl.FRAMEBUFFER, null); |
| gl.clearColor(0, 0, 0, 1); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| |
| var width = 16; |
| var height = 16; |
| var texture = gl.createTexture(); |
| gl.bindTexture(gl.TEXTURE_2D, texture); |
| gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 0, 0, width, height, 0); |
| gl.clearColor(clearColor[0], clearColor[1], clearColor[2], clearColor[3]); |
| gl.clear(gl.COLOR_BUFFER_BIT); |
| |
| wtu.checkCanvasRect(gl, 0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight, expectedColor); |
| |
| gl.bindTexture(gl.TEXTURE_2D, null); |
| gl.deleteTexture(texture); |
| } |
| |
| description("Test that if clear with a color that has non-0/1 RGB components after copyTexImage2D, the final render color should be consistent with the clear color."); |
| |
| for(var index = 0; index < 3; index++) |
| { |
| var clearColor = [0, 0, 0, 1]; |
| var expectedColor = [0, 0, 0, 255]; |
| clearColor[index] = 0.8; |
| expectedColor[index] = 255 * clearColor[index]; |
| testClearAfterCopyTexImage2DWithoutPureOneOrZero(clearColor, expectedColor); |
| } |
| |
| debug(""); |
| var successfullyParsed = true; |
| |
| </script> |
| <script src="../../js/js-test-post.js"></script> |
| |
| </body> |
| </html> |
