LayoutTests/webgl/2.0.0/resources/webgl_test_files/conformance/attribs/gl-vertexattribpointer.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 vertexAttribPointer Conformance Tests</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";
 description("This test checks vertexAttribPointer behaviors in WebGL.");

 debug("");
 debug("Canvas.getContext");

 var wtu = WebGLTestUtils;
 var gl = wtu.create3DContext("canvas");
 if (!gl) {
   testFailed("context does not exist");
 } else {
   testPassed("context exists");

   debug("");
   debug("Checking gl.vertexAttribPointer.");

   if (!gl.FIXED) {
     gl.FIXED = 0x140C;
   }

   var vertexObject = gl.createBuffer();
   gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);
   gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(0), gl.STATIC_DRAW);


   gl.bindBuffer(gl.ARRAY_BUFFER, null);
   gl.vertexAttribPointer(0, 1, gl.FLOAT, false, 0, 4);
   wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION,
       "vertexAttribPointer should fail if no buffer is bound and `offset` is non-zero.");

   gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);
   gl.vertexAttribPointer(0, 1, gl.FLOAT, false, 0, 0);
   wtu.glErrorShouldBe(gl, gl.NO_ERROR);

   gl.bindBuffer(gl.ARRAY_BUFFER, null);
   gl.vertexAttribPointer(0, 1, gl.FLOAT, false, 0, 0);
   wtu.glErrorShouldBe(gl, gl.NO_ERROR,
       "vertexAttribPointer should succeed if no buffer is bound and `offset` is zero.");

   gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);


   if (wtu.getDefault3DContextVersion() < 2) {
     gl.vertexAttribPointer(0, 1, gl.INT, 0, 0, 0);
     wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
             "vertexAttribPointer should not support INT");
     gl.vertexAttribPointer(0, 1, gl.UNSIGNED_INT, 0, 0, 0);
     wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
             "vertexAttribPointer should not support UNSIGNED_INT");
     gl.vertexAttribPointer(0, 1, gl.FIXED, 0, 0, 0);
     wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
             "vertexAttribPointer should not support FIXED");
   }

   var checkVertexAttribPointer = function(
       gl, err, reason, size, type, normalize, stride, offset) {
     gl.vertexAttribPointer(0, size, type, normalize, stride, offset);
     var succeeded = (err == gl.NO_ERROR);
     wtu.glErrorShouldBe(gl, err,
         "gl.vertexAttribPointer(0, " + size +
         ", gl." + wtu.glEnumToString(gl, type) +
         ", " + normalize +
         ", " + stride +
         ", " + offset +
         ") should " + (succeeded ? "succeed " : "fail ") + reason);
     if (succeeded) {
       shouldBe('gl.getVertexAttrib(0, gl.VERTEX_ATTRIB_ARRAY_SIZE)', size.toString());
       shouldBe('gl.getVertexAttrib(0, gl.VERTEX_ATTRIB_ARRAY_TYPE)', 'gl.' + wtu.glEnumToString(gl, type));
       shouldBe('gl.getVertexAttrib(0, gl.VERTEX_ATTRIB_ARRAY_NORMALIZED)', normalize.toString());
       shouldBe('gl.getVertexAttrib(0, gl.VERTEX_ATTRIB_ARRAY_STRIDE)', stride.toString());
       shouldBe('gl.getVertexAttribOffset(0, gl.VERTEX_ATTRIB_ARRAY_POINTER)', offset.toString());
     }
   }

   var types = [
     { type:gl.BYTE,           bytesPerComponent: 1 },
     { type:gl.UNSIGNED_BYTE,  bytesPerComponent: 1 },
     { type:gl.SHORT,          bytesPerComponent: 2 },
     { type:gl.UNSIGNED_SHORT, bytesPerComponent: 2 },
     { type:gl.FLOAT,          bytesPerComponent: 4 },
   ];

   for (var ii = 0; ii < types.length; ++ii) {
     var info = types[ii];
     debug("");
     for (var size = 1; size <= 4; ++size) {
       debug("");
       debug("checking: " + wtu.glEnumToString(gl, info.type) + " with size " + size);
       var bytesPerElement = size * info.bytesPerComponent;
       var offsetSet = [
           0,
           1,
           info.bytesPerComponent - 1,
           info.bytesPerComponent,
           info.bytesPerComponent + 1,
           info.bytesPerComponent * 2];
       for (var jj = 0; jj < offsetSet.length; ++jj) {
         var offset = offsetSet[jj];
         for (var kk = 0; kk < offsetSet.length; ++kk) {
           var stride = offsetSet[kk];
           var err = gl.NO_ERROR;
           var reason = ""
           if (offset % info.bytesPerComponent != 0) {
             reason = "because offset is bad";
             err = gl.INVALID_OPERATION;
           }
           if (stride % info.bytesPerComponent != 0) {
             reason = "because stride is bad";
             err = gl.INVALID_OPERATION;
           }
           checkVertexAttribPointer(
               gl, err, reason, size, info.type, false, stride, offset);
         }
         var stride = Math.floor(255 / info.bytesPerComponent) * info.bytesPerComponent;

         if (offset == 0) {
           checkVertexAttribPointer(
               gl, gl.NO_ERROR, "at stride limit",
               size, info.type, false, stride, offset);
           checkVertexAttribPointer(
               gl, gl.INVALID_VALUE, "over stride limit",
               size, info.type, false,
               stride + info.bytesPerComponent, offset);
         }
       }
     }
   }
 }

 debug("");
 var successfullyParsed = true;

 </script>
 <script src="../../js/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 vertexAttribPointer Conformance Tests</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";
	description("This test checks vertexAttribPointer behaviors in WebGL.");

	debug("");
	debug("Canvas.getContext");

	var wtu = WebGLTestUtils;
	var gl = wtu.create3DContext("canvas");
	if (!gl) {
	testFailed("context does not exist");
	} else {
	testPassed("context exists");

	debug("");
	debug("Checking gl.vertexAttribPointer.");

	if (!gl.FIXED) {
	gl.FIXED = 0x140C;
	}

	var vertexObject = gl.createBuffer();
	gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);
	gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(0), gl.STATIC_DRAW);


	gl.bindBuffer(gl.ARRAY_BUFFER, null);
	gl.vertexAttribPointer(0, 1, gl.FLOAT, false, 0, 4);
	wtu.glErrorShouldBe(gl, gl.INVALID_OPERATION,
	"vertexAttribPointer should fail if no buffer is bound and `offset` is non-zero.");

	gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);
	gl.vertexAttribPointer(0, 1, gl.FLOAT, false, 0, 0);
	wtu.glErrorShouldBe(gl, gl.NO_ERROR);

	gl.bindBuffer(gl.ARRAY_BUFFER, null);
	gl.vertexAttribPointer(0, 1, gl.FLOAT, false, 0, 0);
	wtu.glErrorShouldBe(gl, gl.NO_ERROR,
	"vertexAttribPointer should succeed if no buffer is bound and `offset` is zero.");

	gl.bindBuffer(gl.ARRAY_BUFFER, vertexObject);


	if (wtu.getDefault3DContextVersion() < 2) {
	gl.vertexAttribPointer(0, 1, gl.INT, 0, 0, 0);
	wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
	"vertexAttribPointer should not support INT");
	gl.vertexAttribPointer(0, 1, gl.UNSIGNED_INT, 0, 0, 0);
	wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
	"vertexAttribPointer should not support UNSIGNED_INT");
	gl.vertexAttribPointer(0, 1, gl.FIXED, 0, 0, 0);
	wtu.glErrorShouldBe(gl, gl.INVALID_ENUM,
	"vertexAttribPointer should not support FIXED");
	}

	var checkVertexAttribPointer = function(
	gl, err, reason, size, type, normalize, stride, offset) {
	gl.vertexAttribPointer(0, size, type, normalize, stride, offset);
	var succeeded = (err == gl.NO_ERROR);
	wtu.glErrorShouldBe(gl, err,
	"gl.vertexAttribPointer(0, " + size +
	", gl." + wtu.glEnumToString(gl, type) +
	", " + normalize +
	", " + stride +
	", " + offset +
	") should " + (succeeded ? "succeed " : "fail ") + reason);
	if (succeeded) {
	shouldBe('gl.getVertexAttrib(0, gl.VERTEX_ATTRIB_ARRAY_SIZE)', size.toString());
	shouldBe('gl.getVertexAttrib(0, gl.VERTEX_ATTRIB_ARRAY_TYPE)', 'gl.' + wtu.glEnumToString(gl, type));
	shouldBe('gl.getVertexAttrib(0, gl.VERTEX_ATTRIB_ARRAY_NORMALIZED)', normalize.toString());
	shouldBe('gl.getVertexAttrib(0, gl.VERTEX_ATTRIB_ARRAY_STRIDE)', stride.toString());
	shouldBe('gl.getVertexAttribOffset(0, gl.VERTEX_ATTRIB_ARRAY_POINTER)', offset.toString());
	}
	}

	var types = [
	{ type:gl.BYTE, bytesPerComponent: 1 },
	{ type:gl.UNSIGNED_BYTE, bytesPerComponent: 1 },
	{ type:gl.SHORT, bytesPerComponent: 2 },
	{ type:gl.UNSIGNED_SHORT, bytesPerComponent: 2 },
	{ type:gl.FLOAT, bytesPerComponent: 4 },
	];

	for (var ii = 0; ii < types.length; ++ii) {
	var info = types[ii];
	debug("");
	for (var size = 1; size <= 4; ++size) {
	debug("");
	debug("checking: " + wtu.glEnumToString(gl, info.type) + " with size " + size);
	var bytesPerElement = size * info.bytesPerComponent;
	var offsetSet = [
	0,
	1,
	info.bytesPerComponent - 1,
	info.bytesPerComponent,
	info.bytesPerComponent + 1,
	info.bytesPerComponent * 2];
	for (var jj = 0; jj < offsetSet.length; ++jj) {
	var offset = offsetSet[jj];
	for (var kk = 0; kk < offsetSet.length; ++kk) {
	var stride = offsetSet[kk];
	var err = gl.NO_ERROR;
	var reason = ""
	if (offset % info.bytesPerComponent != 0) {
	reason = "because offset is bad";
	err = gl.INVALID_OPERATION;
	}
	if (stride % info.bytesPerComponent != 0) {
	reason = "because stride is bad";
	err = gl.INVALID_OPERATION;
	}
	checkVertexAttribPointer(
	gl, err, reason, size, info.type, false, stride, offset);
	}
	var stride = Math.floor(255 / info.bytesPerComponent) * info.bytesPerComponent;

	if (offset == 0) {
	checkVertexAttribPointer(
	gl, gl.NO_ERROR, "at stride limit",
	size, info.type, false, stride, offset);
	checkVertexAttribPointer(
	gl, gl.INVALID_VALUE, "over stride limit",
	size, info.type, false,
	stride + info.bytesPerComponent, offset);
	}
	}
	}
	}
	}

	debug("");
	var successfullyParsed = true;

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

	</body>
	</html>