clear-after-copyTexImage2D.html (1948B)
1 <!-- 2 Copyright (c) 2019 The Khronos Group Inc. 3 Use of this source code is governed by an MIT-style license that can be 4 found in the LICENSE.txt file. 5 --> 6 7 <!DOCTYPE html> 8 <html> 9 <head> 10 <meta charset="utf-8"> 11 <title>WebGL clear after copyTexImage2D with a non-pure color</title> 12 <link rel="stylesheet" href="../../resources/js-test-style.css"/> 13 <script src="../../js/js-test-pre.js"></script> 14 <script src="../../js/webgl-test-utils.js"></script> 15 </head> 16 <body> 17 <div id="description"></div> 18 <div id="console"></div> 19 <canvas id="canvas" width="128" height="128"> </canvas> 20 <script> 21 "use strict"; 22 // This test verifies a Intel D3D driver bug. 23 var wtu = WebGLTestUtils; 24 var gl = wtu.create3DContext("canvas", {"antialias" : "true"}); 25 26 function testClearAfterCopyTexImage2DWithoutPureOneOrZero(clearColor, expectedColor) 27 { 28 gl.bindFramebuffer(gl.FRAMEBUFFER, null); 29 gl.clearColor(0, 0, 0, 1); 30 gl.clear(gl.COLOR_BUFFER_BIT); 31 32 var width = 16; 33 var height = 16; 34 var texture = gl.createTexture(); 35 gl.bindTexture(gl.TEXTURE_2D, texture); 36 gl.copyTexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 0, 0, width, height, 0); 37 gl.clearColor(clearColor[0], clearColor[1], clearColor[2], clearColor[3]); 38 gl.clear(gl.COLOR_BUFFER_BIT); 39 40 wtu.checkCanvasRect(gl, 0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight, expectedColor); 41 42 gl.bindTexture(gl.TEXTURE_2D, null); 43 gl.deleteTexture(texture); 44 } 45 46 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."); 47 48 for(var index = 0; index < 3; index++) 49 { 50 var clearColor = [0, 0, 0, 1]; 51 var expectedColor = [0, 0, 0, 255]; 52 clearColor[index] = 0.8; 53 expectedColor[index] = 255 * clearColor[index]; 54 testClearAfterCopyTexImage2DWithoutPureOneOrZero(clearColor, expectedColor); 55 } 56 57 debug(""); 58 var successfullyParsed = true; 59 60 </script> 61 <script src="../../js/js-test-post.js"></script> 62 63 </body> 64 </html>