LayoutTests/webgl/2.0.0/resources/webgl_test_files/conformance/rendering/framebuffer-texture-clear.html - WebKit - Git at Google

 <!--

 /*
 ** Copyright (c) 2017 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.
 */

 -->

 <!DOCTYPE html>
 <html>
 <head>
 <meta charset="utf-8">
 <title>WebGL framebuffer clearColor with pure 0/1</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="2" height="2"> </canvas>
 <script>
 "use strict";
 // This test verifies a Mac Intel HD 6000/6100 driver bug. See crbug.com/710443.
 var wtu = WebGLTestUtils;
 var gl = wtu.create3DContext("canvas");

 function InitializeRGBAData(width, height)
 {
   var size = 4 * width * height;
   var data = new Uint8Array(size);
   for (var i = 0; i < size; i++) {
     data[i] = 128;
   }
   return data;
 }

 function testFramebufferTextureClearWithPureZeroOrOne(clearColor, expectedColor) {
   var width = 32;
   var height = 32;
   var texture0 = gl.createTexture();
   gl.bindTexture(gl.TEXTURE_2D, texture0);
   // It seems that if we add texParameteri here, all cases can pass no matter
   // you use texParameteri or not in Line 85.
   // gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
   var texData = InitializeRGBAData(width, height);
   gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, texData);

   var fbo0 = gl.createFramebuffer();
   gl.bindFramebuffer(gl.FRAMEBUFFER, fbo0);
   gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture0, 0);
   gl.viewport(0, 0, width, height);
   gl.clearColor(clearColor[0], clearColor[1], clearColor[2], clearColor[3]);
   gl.clear(gl.COLOR_BUFFER_BIT);

   var texture1 = gl.createTexture();
   gl.bindTexture(gl.TEXTURE_2D, texture1);
   gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
   var fbo1 = gl.createFramebuffer();
   gl.bindFramebuffer(gl.FRAMEBUFFER, fbo1);
   gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture1, 0);

   wtu.setupTexturedQuad(gl);

   gl.bindTexture(gl.TEXTURE_2D, texture0);
   gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
   gl.bindFramebuffer(gl.FRAMEBUFFER, fbo1);
   gl.viewport(0, 0, width, height);
   gl.drawArrays(gl.TRIANGLES, 0, 6);

   wtu.checkCanvasRect(gl, 0, 0, 1, 1, expectedColor);

   gl.deleteTexture(texture0);
   gl.deleteFramebuffer(fbo0);
   gl.deleteTexture(texture1);
   gl.deleteFramebuffer(fbo1);
 }

 description("Test that if clear fbo texture color with pure 0/1 and sample this texture to draw to another fbo, the final render color should be consistent with the clear color.");

 for(var index = 0; index < 16; index++)
 {
   var r = (index & 8) / 8;
   var g = (index & 4) / 4;
   var b = (index & 2) / 2;
   var a = index & 1;
   var clearColor = [r, g, b, a];
   var expectedColor = [r * 255, g * 255, b * 255, a * 255];
   testFramebufferTextureClearWithPureZeroOrOne(clearColor, expectedColor);
 }

 debug("");
 var successfullyParsed = true;

 </script>
 <script src="../../js/js-test-post.js"></script>

 </body>
 </html>
	<!--

	/*
	** Copyright (c) 2017 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.
	*/

	-->

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>WebGL framebuffer clearColor with pure 0/1</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="2" height="2"> </canvas>
	<script>
	"use strict";
	// This test verifies a Mac Intel HD 6000/6100 driver bug. See crbug.com/710443.
	var wtu = WebGLTestUtils;
	var gl = wtu.create3DContext("canvas");

	function InitializeRGBAData(width, height)
	{
	var size = 4 * width * height;
	var data = new Uint8Array(size);
	for (var i = 0; i < size; i++) {
	data[i] = 128;
	}
	return data;
	}

	function testFramebufferTextureClearWithPureZeroOrOne(clearColor, expectedColor) {
	var width = 32;
	var height = 32;
	var texture0 = gl.createTexture();
	gl.bindTexture(gl.TEXTURE_2D, texture0);
	// It seems that if we add texParameteri here, all cases can pass no matter
	// you use texParameteri or not in Line 85.
	// gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
	var texData = InitializeRGBAData(width, height);
	gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, texData);

	var fbo0 = gl.createFramebuffer();
	gl.bindFramebuffer(gl.FRAMEBUFFER, fbo0);
	gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture0, 0);
	gl.viewport(0, 0, width, height);
	gl.clearColor(clearColor[0], clearColor[1], clearColor[2], clearColor[3]);
	gl.clear(gl.COLOR_BUFFER_BIT);

	var texture1 = gl.createTexture();
	gl.bindTexture(gl.TEXTURE_2D, texture1);
	gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
	var fbo1 = gl.createFramebuffer();
	gl.bindFramebuffer(gl.FRAMEBUFFER, fbo1);
	gl.framebufferTexture2D(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.TEXTURE_2D, texture1, 0);

	wtu.setupTexturedQuad(gl);

	gl.bindTexture(gl.TEXTURE_2D, texture0);
	gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
	gl.bindFramebuffer(gl.FRAMEBUFFER, fbo1);
	gl.viewport(0, 0, width, height);
	gl.drawArrays(gl.TRIANGLES, 0, 6);

	wtu.checkCanvasRect(gl, 0, 0, 1, 1, expectedColor);

	gl.deleteTexture(texture0);
	gl.deleteFramebuffer(fbo0);
	gl.deleteTexture(texture1);
	gl.deleteFramebuffer(fbo1);
	}

	description("Test that if clear fbo texture color with pure 0/1 and sample this texture to draw to another fbo, the final render color should be consistent with the clear color.");

	for(var index = 0; index < 16; index++)
	{
	var r = (index & 8) / 8;
	var g = (index & 4) / 4;
	var b = (index & 2) / 2;
	var a = index & 1;
	var clearColor = [r, g, b, a];
	var expectedColor = [r * 255, g * 255, b * 255, a * 255];
	testFramebufferTextureClearWithPureZeroOrOne(clearColor, expectedColor);
	}

	debug("");
	var successfullyParsed = true;

	</script>
	<script src="../../js/js-test-post.js"></script>

	</body>
	</html>