LayoutTests/webgl/2.0.0/resources/webgl_test_files/conformance2/renderbuffers/multisample-with-full-sample-counts.html - WebKit - Git at Google

 <!--

 /*
 ** Copyright (c) 2016 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">
 <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="canvas" width="32" height="32" style="width: 32px; height: 32px;"></canvas>
 <div id="description"></div>
 <div id="console"></div>
 <script>
 "use strict";
 var wtu = WebGLTestUtils;
 description(' Test multisample with sample number from 1 to max sample number which also includes the samples that may not be in the supported sample list');

 var gl = wtu.create3DContext("canvas", null, 2);
 var size = 32;
 var program;

 if (!gl) {
     testFailed('canvas.getContext() failed');
 } else {
     program = wtu.setupColorQuad(gl);
     gl.viewport(0, 0, size, size);
     var supportedSampleCountArray = gl.getInternalformatParameter(gl.RENDERBUFFER, gl.RGBA8, gl.SAMPLES);
     var iterationCount = supportedSampleCountArray[0] + 1;
     for (var i = 1; i < iterationCount; i++)
     {
         runTest(gl, i, false);
         runTest(gl, i, true);
     }
 }

 function runTest(gl, sampleCount, isInverted) {
     // Setup multi-sample RBO
     var msColorRbo = gl.createRenderbuffer();
     gl.bindRenderbuffer(gl.RENDERBUFFER, msColorRbo);
     gl.renderbufferStorageMultisample(gl.RENDERBUFFER, sampleCount, gl.RGBA8, size, size);

     // Setup multi-sample FBO.
     var msFbo = gl.createFramebuffer();
     gl.bindFramebuffer(gl.FRAMEBUFFER, msFbo);
     gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, msColorRbo);

     // Setup resolve color RBO.
     var resolveColorRbo = gl.createRenderbuffer();
     gl.bindRenderbuffer(gl.RENDERBUFFER, resolveColorRbo);
     gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA8, size, size);
     // Setup resolve FBO
     var resolveFbo = gl.createFramebuffer();
     gl.bindFramebuffer(gl.FRAMEBUFFER, resolveFbo);
     gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, resolveColorRbo);

     gl.bindFramebuffer(gl.FRAMEBUFFER, msFbo);
     if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) {
         testFailed("Framebuffer incomplete.");
         return;
     }
     gl.clearColor(0.0, 0.0, 0.0, 1.0);
     gl.clear(gl.COLOR_BUFFER_BIT);

     gl.enable(gl.SAMPLE_COVERAGE);
     var coverageValue = isInverted ? 0.0 : 1.0;
     gl.sampleCoverage(coverageValue, isInverted);

     var quadColor = [1.0, 0.0, 0.0, 1.0];
     gl.useProgram(program);
     wtu.drawFloatColorQuad(gl, quadColor);

     gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, resolveFbo);
     gl.blitFramebuffer(0, 0, size, size, 0, 0, size, size, gl.COLOR_BUFFER_BIT, gl.NEAREST);

     gl.bindFramebuffer(gl.FRAMEBUFFER, resolveFbo);
     wtu.checkCanvasRect(gl, 0, 0, size, size, [255, 0, 0, 255],
                         "User buffer has been rendered to red with sample = "
                         + sampleCount + ", coverageValue = " + coverageValue
                         + " and isInverted = " + isInverted, 3);

     gl.disable(gl.SAMPLE_COVERAGE);
     gl.deleteRenderbuffer(msColorRbo);
     gl.deleteRenderbuffer(resolveColorRbo);
     gl.deleteFramebuffer(msFbo);
     gl.deleteFramebuffer(resolveFbo);
 }

 var successfullyParsed = true;
 </script>
 <script src="../../js/js-test-post.js"></script>
 </body>
 </html>
	<!--

	/*
	** Copyright (c) 2016 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">
	<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="canvas" width="32" height="32" style="width: 32px; height: 32px;"></canvas>
	<div id="description"></div>
	<div id="console"></div>
	<script>
	"use strict";
	var wtu = WebGLTestUtils;
	description(' Test multisample with sample number from 1 to max sample number which also includes the samples that may not be in the supported sample list');

	var gl = wtu.create3DContext("canvas", null, 2);
	var size = 32;
	var program;

	if (!gl) {
	testFailed('canvas.getContext() failed');
	} else {
	program = wtu.setupColorQuad(gl);
	gl.viewport(0, 0, size, size);
	var supportedSampleCountArray = gl.getInternalformatParameter(gl.RENDERBUFFER, gl.RGBA8, gl.SAMPLES);
	var iterationCount = supportedSampleCountArray[0] + 1;
	for (var i = 1; i < iterationCount; i++)
	{
	runTest(gl, i, false);
	runTest(gl, i, true);
	}
	}

	function runTest(gl, sampleCount, isInverted) {
	// Setup multi-sample RBO
	var msColorRbo = gl.createRenderbuffer();
	gl.bindRenderbuffer(gl.RENDERBUFFER, msColorRbo);
	gl.renderbufferStorageMultisample(gl.RENDERBUFFER, sampleCount, gl.RGBA8, size, size);

	// Setup multi-sample FBO.
	var msFbo = gl.createFramebuffer();
	gl.bindFramebuffer(gl.FRAMEBUFFER, msFbo);
	gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, msColorRbo);

	// Setup resolve color RBO.
	var resolveColorRbo = gl.createRenderbuffer();
	gl.bindRenderbuffer(gl.RENDERBUFFER, resolveColorRbo);
	gl.renderbufferStorage(gl.RENDERBUFFER, gl.RGBA8, size, size);
	// Setup resolve FBO
	var resolveFbo = gl.createFramebuffer();
	gl.bindFramebuffer(gl.FRAMEBUFFER, resolveFbo);
	gl.framebufferRenderbuffer(gl.FRAMEBUFFER, gl.COLOR_ATTACHMENT0, gl.RENDERBUFFER, resolveColorRbo);

	gl.bindFramebuffer(gl.FRAMEBUFFER, msFbo);
	if (gl.checkFramebufferStatus(gl.FRAMEBUFFER) != gl.FRAMEBUFFER_COMPLETE) {
	testFailed("Framebuffer incomplete.");
	return;
	}
	gl.clearColor(0.0, 0.0, 0.0, 1.0);
	gl.clear(gl.COLOR_BUFFER_BIT);

	gl.enable(gl.SAMPLE_COVERAGE);
	var coverageValue = isInverted ? 0.0 : 1.0;
	gl.sampleCoverage(coverageValue, isInverted);

	var quadColor = [1.0, 0.0, 0.0, 1.0];
	gl.useProgram(program);
	wtu.drawFloatColorQuad(gl, quadColor);

	gl.bindFramebuffer(gl.DRAW_FRAMEBUFFER, resolveFbo);
	gl.blitFramebuffer(0, 0, size, size, 0, 0, size, size, gl.COLOR_BUFFER_BIT, gl.NEAREST);

	gl.bindFramebuffer(gl.FRAMEBUFFER, resolveFbo);
	wtu.checkCanvasRect(gl, 0, 0, size, size, [255, 0, 0, 255],
	"User buffer has been rendered to red with sample = "
	+ sampleCount + ", coverageValue = " + coverageValue
	+ " and isInverted = " + isInverted, 3);

	gl.disable(gl.SAMPLE_COVERAGE);
	gl.deleteRenderbuffer(msColorRbo);
	gl.deleteRenderbuffer(resolveColorRbo);
	gl.deleteFramebuffer(msFbo);
	gl.deleteFramebuffer(resolveFbo);
	}

	var successfullyParsed = true;
	</script>
	<script src="../../js/js-test-post.js"></script>
	</body>
	</html>