LayoutTests/webgl/2.0.0/resources/webgl_test_files/conformance2/buffers/buffer-type-restrictions.html - WebKit - Git at Google

 <!--

 /*
 ** Copyright (c) 2015 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 buffer binding restrictions test.</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>
 <script>
 "use strict";
 description("Test binding restrictions governed by the WebGL 2 spec. The test makes sure that bindBuffer,"
   + "bindBufferRange, and bindBufferBase acts as expected with every target combination.");

 var wtu = WebGLTestUtils;

 var gl = wtu.create3DContext(undefined, undefined, 2);

 var validTargets = [gl.ARRAY_BUFFER, gl.ELEMENT_ARRAY_BUFFER, gl.COPY_READ_BUFFER,
                     gl.COPY_WRITE_BUFFER, gl.PIXEL_PACK_BUFFER, gl.PIXEL_UNPACK_BUFFER,
                     gl.TRANSFORM_FEEDBACK_BUFFER, gl.UNIFORM_BUFFER];

 var bindFunctions = ["bindBuffer", "bindBufferRange", "bindBufferBase"];

 var isCopyTarget = function(target) {
   return target == gl.COPY_READ_BUFFER || target == gl.COPY_WRITE_BUFFER;
 }

 var noElementArrayVsOtherDataConflicts = function(first, second) {
   return isCopyTarget(second) || ((first == gl.ELEMENT_ARRAY_BUFFER) == (second == gl.ELEMENT_ARRAY_BUFFER));
 };


 var bind = function(bindFn, target, buffer) {
   if (bindFn == "bindBuffer")
     gl.bindBuffer(target, buffer);
   else if (bindFn == "bindBufferRange")
     gl.bindBufferRange(target, 0, buffer, 0, 4);
   else if (bindFn == "bindBufferBase")
     gl.bindBufferBase(target, 0, buffer);
   else
     throw new Error("Cannot bind unknown function: " + bindFn);
 }

 var testBindingFn = function(firstBindFn, secondBindFn, firstTarget, secondTarget) {
   var firstTargetStr = wtu.glEnumToString(gl, firstTarget),
     secondTargetStr = wtu.glEnumToString(gl, secondTarget);
   var buffer = gl.createBuffer();

   bind(firstBindFn, firstTarget, buffer);
   bind(firstBindFn, firstTarget, null);
   bind(secondBindFn, secondTarget, buffer);
   bind(secondBindFn, secondTarget, null);

   var messagePrefix = "Binding buffer first with " + firstBindFn + " to gl." + firstTargetStr
     + " and then binding buffer with " + secondBindFn + " to gl." + secondTargetStr + " should ";
   if (firstTarget == secondTarget || noElementArrayVsOtherDataConflicts(firstTarget, secondTarget))
     wtu.glErrorShouldBe(gl, gl.NO_ERROR, messagePrefix + "WORK");
   else
     wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, messagePrefix + "FAIL");
 }

 var testBinding = function(firstTarget, secondTarget) {
   for (var i = 0; i < bindFunctions.length; i++)
     if (i == 0 || firstTarget == gl.UNIFORM_BUFFER || firstTarget == gl.TRANSFORM_FEEDBACK_BUFFER)
       for (var j = 0; j < bindFunctions.length; j++)
         if (j == 0 || secondTarget == gl.UNIFORM_BUFFER || secondTarget == gl.TRANSFORM_FEEDBACK_BUFFER)
           testBindingFn(bindFunctions[i], bindFunctions[j], firstTarget, secondTarget);
 };

 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");

 debug("");
 debug("Testing each binding function");

 var buffer1 = gl.createBuffer();
 bind("bindBuffer", gl.ARRAY_BUFFER, buffer1);
 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "bindBuffer(gl.ARRAY_BUFFER, buffer1) should WORK");

 var buffer2 = gl.createBuffer();
 bind("bindBufferRange", gl.UNIFORM_BUFFER, buffer2);
 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "bindBufferRange(gl.UNIFORM_BUFFER, 0, buffer2, 0, 4) should WORK");

 var buffer3 = gl.createBuffer();
 bind("bindBufferBase", gl.UNIFORM_BUFFER, buffer3);
 wtu.glErrorShouldBe(gl, gl.NO_ERROR, "bindBufferBase(gl.UNIFORM_BUFFER, 0, buffer3) should WORK");

 for (var i = 0; i < validTargets.length; i++) {
   debug("");
   debug("Testing binding a buffer first to " + wtu.glEnumToString(gl, validTargets[i])
     + " and then to another target");
   for (var j = 0; j < validTargets.length; j++)
     testBinding(validTargets[i], validTargets[j]);
 }

 finishTest();

 var successfullyParsed = true;
 </script>
 </body>
 </html>
	<!--

	/*
	** Copyright (c) 2015 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 buffer binding restrictions test.</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>
	<script>
	"use strict";
	description("Test binding restrictions governed by the WebGL 2 spec. The test makes sure that bindBuffer,"
	+ "bindBufferRange, and bindBufferBase acts as expected with every target combination.");

	var wtu = WebGLTestUtils;

	var gl = wtu.create3DContext(undefined, undefined, 2);

	var validTargets = [gl.ARRAY_BUFFER, gl.ELEMENT_ARRAY_BUFFER, gl.COPY_READ_BUFFER,
	gl.COPY_WRITE_BUFFER, gl.PIXEL_PACK_BUFFER, gl.PIXEL_UNPACK_BUFFER,
	gl.TRANSFORM_FEEDBACK_BUFFER, gl.UNIFORM_BUFFER];

	var bindFunctions = ["bindBuffer", "bindBufferRange", "bindBufferBase"];

	var isCopyTarget = function(target) {
	return target == gl.COPY_READ_BUFFER \|\| target == gl.COPY_WRITE_BUFFER;
	}

	var noElementArrayVsOtherDataConflicts = function(first, second) {
	return isCopyTarget(second) \|\| ((first == gl.ELEMENT_ARRAY_BUFFER) == (second == gl.ELEMENT_ARRAY_BUFFER));
	};


	var bind = function(bindFn, target, buffer) {
	if (bindFn == "bindBuffer")
	gl.bindBuffer(target, buffer);
	else if (bindFn == "bindBufferRange")
	gl.bindBufferRange(target, 0, buffer, 0, 4);
	else if (bindFn == "bindBufferBase")
	gl.bindBufferBase(target, 0, buffer);
	else
	throw new Error("Cannot bind unknown function: " + bindFn);
	}

	var testBindingFn = function(firstBindFn, secondBindFn, firstTarget, secondTarget) {
	var firstTargetStr = wtu.glEnumToString(gl, firstTarget),
	secondTargetStr = wtu.glEnumToString(gl, secondTarget);
	var buffer = gl.createBuffer();

	bind(firstBindFn, firstTarget, buffer);
	bind(firstBindFn, firstTarget, null);
	bind(secondBindFn, secondTarget, buffer);
	bind(secondBindFn, secondTarget, null);

	var messagePrefix = "Binding buffer first with " + firstBindFn + " to gl." + firstTargetStr
	+ " and then binding buffer with " + secondBindFn + " to gl." + secondTargetStr + " should ";
	if (firstTarget == secondTarget \|\| noElementArrayVsOtherDataConflicts(firstTarget, secondTarget))
	wtu.glErrorShouldBe(gl, gl.NO_ERROR, messagePrefix + "WORK");
	else
	wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION, messagePrefix + "FAIL");
	}

	var testBinding = function(firstTarget, secondTarget) {
	for (var i = 0; i < bindFunctions.length; i++)
	if (i == 0 \|\| firstTarget == gl.UNIFORM_BUFFER \|\| firstTarget == gl.TRANSFORM_FEEDBACK_BUFFER)
	for (var j = 0; j < bindFunctions.length; j++)
	if (j == 0 \|\| secondTarget == gl.UNIFORM_BUFFER \|\| secondTarget == gl.TRANSFORM_FEEDBACK_BUFFER)
	testBindingFn(bindFunctions[i], bindFunctions[j], firstTarget, secondTarget);
	};

	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "Should be no errors from setup.");

	debug("");
	debug("Testing each binding function");

	var buffer1 = gl.createBuffer();
	bind("bindBuffer", gl.ARRAY_BUFFER, buffer1);
	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "bindBuffer(gl.ARRAY_BUFFER, buffer1) should WORK");

	var buffer2 = gl.createBuffer();
	bind("bindBufferRange", gl.UNIFORM_BUFFER, buffer2);
	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "bindBufferRange(gl.UNIFORM_BUFFER, 0, buffer2, 0, 4) should WORK");

	var buffer3 = gl.createBuffer();
	bind("bindBufferBase", gl.UNIFORM_BUFFER, buffer3);
	wtu.glErrorShouldBe(gl, gl.NO_ERROR, "bindBufferBase(gl.UNIFORM_BUFFER, 0, buffer3) should WORK");

	for (var i = 0; i < validTargets.length; i++) {
	debug("");
	debug("Testing binding a buffer first to " + wtu.glEnumToString(gl, validTargets[i])
	+ " and then to another target");
	for (var j = 0; j < validTargets.length; j++)
	testBinding(validTargets[i], validTargets[j]);
	}

	finishTest();

	var successfullyParsed = true;
	</script>
	</body>
	</html>