LayoutTests/webgl/resources/webgl_test_files/conformance/extensions/webgl-debug-shaders.html - WebKit - Git at Google

 <!--

 /*
 ** Copyright (c) 2012 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 WebGL_debug_shaders Conformance Tests</title>
 <link rel="stylesheet" href="../../resources/js-test-style.css"/>
 <script src="../../resources/desktop-gl-constants.js" type="text/javascript"></script>
 <script src="../../resources/js-test-pre.js"></script>
 <script src="../resources/webgl-test.js"></script>
 <script src="../resources/webgl-test-utils.js"></script>
 </head>
 <body>
 <div id="description"></div>
 <canvas id="canvas" style="width: 1px; height: 1px;"> </canvas>
 <div id="console"></div>
 <!-- Shaders for testing standard derivatives -->

 <script>
 "use strict";
 description("This test verifies the functionality of the WEBGL_debug_shaders extension, if it is available.");

 debug("");

 var wtu = WebGLTestUtils;
 var gl = wtu.create3DContext("canvas");
 var ext = null;
 var shader = null;
 var program = null;
 var info = null;
 var translatedSource;

 if (!gl) {
     testFailed("WebGL context does not exist");
 } else {
     testPassed("WebGL context exists");

     // Query the extension and store globally so shouldBe can access it
     ext = gl.getExtension("WEBGL_debug_shaders");
     if (!ext) {
         testPassed("No WEBGL_debug_shaders support -- this is legal");

         runSupportedTest(false);
     } else {
         testPassed("Successfully enabled WEBGL_debug_shaders extension");

         runSupportedTest(true);
         runTestEnabled();
     }
 }

 function runSupportedTest(extensionEnabled) {
     var supported = gl.getSupportedExtensions();
     if (supported.indexOf("WEBGL_debug_shaders") >= 0) {
         if (extensionEnabled) {
             testPassed("WEBGL_debug_shaders listed as supported and getExtension succeeded");
         } else {
             testFailed("WEBGL_debug_shaders listed as supported but getExtension failed");
         }
     } else {
         if (extensionEnabled) {
             testFailed("WEBGL_debug_shaders not listed as supported but getExtension succeeded");
         } else {
             testPassed("WEBGL_debug_shaders not listed as supported and getExtension failed -- this is legal");
         }
     }
 }

 function runTestEnabled() {
     debug("Testing function with extension enabled");

     var shaderInfos = [
       {
         source: "void main() { gl_Position = vec4(1.0, 0.0, 0.0, 1.0); }",
         type: gl.VERTEX_SHADER
       },
       {
         source: "void main() { gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); }",
         type: gl.FRAGMENT_SHADER
       }
     ];

     // Do this twice to test for caching issues.
     for (var jj = 0; jj < 2; ++jj) {
         debug("pass:" + (jj + 1));
         program = gl.createProgram();
         for (var ii = 0; ii < shaderInfos.length; ++ii) {
             info = shaderInfos[ii];

             shader = gl.createShader(info.type);

             // if no source has been defined or compileShader() has not been called,
             // getTranslatedShaderSource() should return an empty string.
             shouldBeNull("ext.getTranslatedShaderSource(shader)");
             gl.shaderSource(shader, info.source);
             shouldBeNull("ext.getTranslatedShaderSource(shader)");
             gl.compileShader(shader);
             shouldBeTrue("gl.getShaderParameter(shader, gl.COMPILE_STATUS)");
             translatedSource = ext.getTranslatedShaderSource(shader);
             glErrorShouldBe(gl, gl.NO_ERROR, "No gl error should occur");
             if (translatedSource && translatedSource.length > 0) {
                 testPassed("Successfully called getTranslatedShaderSource()");
             } else {
                 testFailed("Calling getTranslatedShaderSource() failed");
             }
             gl.attachShader(program, shader);
         }
         gl.linkProgram(program);
         shouldBeTrue("gl.getProgramParameter(program, gl.LINK_STATUS)");
     }

     // Test changing the source. Make sure we get the correct source each time.
     debug("test changing source");
     shader = gl.createShader(gl.FRAGMENT_SHADER);
     gl.shaderSource(shader, "void main() { gl_FragColor = vec4(gl_FragCoord.x, 0.0, 0.0, 1.0); }");
     gl.compileShader(shader);
     shouldBeTrue("gl.getShaderParameter(shader, gl.COMPILE_STATUS)");
     translatedSource = ext.getTranslatedShaderSource(shader);
     shouldBeTrue('translatedSource && translatedSource.indexOf("gl_FragCoord") >= 0');
     // change the source but don't compile.
     gl.shaderSource(shader, "void main() { gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); }");
     // the source should NOT change. It should be the same as the old source.
     newTranslatedSource = ext.getTranslatedShaderSource(shader);
     shouldBe('newTranslatedSource', 'translatedSource');
     // now compile.
     gl.compileShader(shader);
     shouldBeTrue("gl.getShaderParameter(shader, gl.COMPILE_STATUS)");
     // the source should have change.
     newTranslatedSource = ext.getTranslatedShaderSource(shader);
     shouldNotBe('newTranslatedSource', 'translatedSource');
 }

 debug("");
 var successfullyParsed = true;
 </script>
 <script src="../../resources/js-test-post.js"></script>

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

	/*
	** Copyright (c) 2012 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 WebGL_debug_shaders Conformance Tests</title>
	<link rel="stylesheet" href="../../resources/js-test-style.css"/>
	<script src="../../resources/desktop-gl-constants.js" type="text/javascript"></script>
	<script src="../../resources/js-test-pre.js"></script>
	<script src="../resources/webgl-test.js"></script>
	<script src="../resources/webgl-test-utils.js"></script>
	</head>
	<body>
	<div id="description"></div>
	<canvas id="canvas" style="width: 1px; height: 1px;"> </canvas>
	<div id="console"></div>
	<!-- Shaders for testing standard derivatives -->

	<script>
	"use strict";
	description("This test verifies the functionality of the WEBGL_debug_shaders extension, if it is available.");

	debug("");

	var wtu = WebGLTestUtils;
	var gl = wtu.create3DContext("canvas");
	var ext = null;
	var shader = null;
	var program = null;
	var info = null;
	var translatedSource;

	if (!gl) {
	testFailed("WebGL context does not exist");
	} else {
	testPassed("WebGL context exists");

	// Query the extension and store globally so shouldBe can access it
	ext = gl.getExtension("WEBGL_debug_shaders");
	if (!ext) {
	testPassed("No WEBGL_debug_shaders support -- this is legal");

	runSupportedTest(false);
	} else {
	testPassed("Successfully enabled WEBGL_debug_shaders extension");

	runSupportedTest(true);
	runTestEnabled();
	}
	}

	function runSupportedTest(extensionEnabled) {
	var supported = gl.getSupportedExtensions();
	if (supported.indexOf("WEBGL_debug_shaders") >= 0) {
	if (extensionEnabled) {
	testPassed("WEBGL_debug_shaders listed as supported and getExtension succeeded");
	} else {
	testFailed("WEBGL_debug_shaders listed as supported but getExtension failed");
	}
	} else {
	if (extensionEnabled) {
	testFailed("WEBGL_debug_shaders not listed as supported but getExtension succeeded");
	} else {
	testPassed("WEBGL_debug_shaders not listed as supported and getExtension failed -- this is legal");
	}
	}
	}

	function runTestEnabled() {
	debug("Testing function with extension enabled");

	var shaderInfos = [
	{
	source: "void main() { gl_Position = vec4(1.0, 0.0, 0.0, 1.0); }",
	type: gl.VERTEX_SHADER
	},
	{
	source: "void main() { gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); }",
	type: gl.FRAGMENT_SHADER
	}
	];

	// Do this twice to test for caching issues.
	for (var jj = 0; jj < 2; ++jj) {
	debug("pass:" + (jj + 1));
	program = gl.createProgram();
	for (var ii = 0; ii < shaderInfos.length; ++ii) {
	info = shaderInfos[ii];

	shader = gl.createShader(info.type);

	// if no source has been defined or compileShader() has not been called,
	// getTranslatedShaderSource() should return an empty string.
	shouldBeNull("ext.getTranslatedShaderSource(shader)");
	gl.shaderSource(shader, info.source);
	shouldBeNull("ext.getTranslatedShaderSource(shader)");
	gl.compileShader(shader);
	shouldBeTrue("gl.getShaderParameter(shader, gl.COMPILE_STATUS)");
	translatedSource = ext.getTranslatedShaderSource(shader);
	glErrorShouldBe(gl, gl.NO_ERROR, "No gl error should occur");
	if (translatedSource && translatedSource.length > 0) {
	testPassed("Successfully called getTranslatedShaderSource()");
	} else {
	testFailed("Calling getTranslatedShaderSource() failed");
	}
	gl.attachShader(program, shader);
	}
	gl.linkProgram(program);
	shouldBeTrue("gl.getProgramParameter(program, gl.LINK_STATUS)");
	}

	// Test changing the source. Make sure we get the correct source each time.
	debug("test changing source");
	shader = gl.createShader(gl.FRAGMENT_SHADER);
	gl.shaderSource(shader, "void main() { gl_FragColor = vec4(gl_FragCoord.x, 0.0, 0.0, 1.0); }");
	gl.compileShader(shader);
	shouldBeTrue("gl.getShaderParameter(shader, gl.COMPILE_STATUS)");
	translatedSource = ext.getTranslatedShaderSource(shader);
	shouldBeTrue('translatedSource && translatedSource.indexOf("gl_FragCoord") >= 0');
	// change the source but don't compile.
	gl.shaderSource(shader, "void main() { gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0); }");
	// the source should NOT change. It should be the same as the old source.
	newTranslatedSource = ext.getTranslatedShaderSource(shader);
	shouldBe('newTranslatedSource', 'translatedSource');
	// now compile.
	gl.compileShader(shader);
	shouldBeTrue("gl.getShaderParameter(shader, gl.COMPILE_STATUS)");
	// the source should have change.
	newTranslatedSource = ext.getTranslatedShaderSource(shader);
	shouldNotBe('newTranslatedSource', 'translatedSource');
	}

	debug("");
	var successfullyParsed = true;
	</script>
	<script src="../../resources/js-test-post.js"></script>

	</body>
	</html>