/*-------------------------------------------------------------------------
 * drawElements Quality Program OpenGL ES 3.0 Module
 * -------------------------------------------------
 *
 * Copyright 2014 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 *//*!
 * \file
 * \brief Negative Buffer API tests.
 *//*--------------------------------------------------------------------*/

#include "es3fNegativeBufferApiTests.hpp"
#include "es3fApiCase.hpp"
#include "gluContextInfo.hpp"

#include "glwDefs.hpp"
#include "glwEnums.hpp"

using namespace glw; // GL types

namespace deqp
{
namespace gles3
{
namespace Functional
{

using tcu::TestLog;

NegativeBufferApiTests::NegativeBufferApiTests (Context& context)
	: TestCaseGroup(context, "buffer", "Negative Buffer API Cases")
{
}

NegativeBufferApiTests::~NegativeBufferApiTests (void)
{
}

void NegativeBufferApiTests::init (void)
{
	// Buffers

	ES3F_ADD_API_CASE(bind_buffer, "Invalid glBindBuffer() usage",
		{
			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not one of the allowable values.");
			glBindBuffer(-1, 0);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;
		});
	ES3F_ADD_API_CASE(delete_buffers, "Invalid glDeleteBuffers() usage",
		{
			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if n is negative.");
			glDeleteBuffers(-1, 0);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;
		});
	ES3F_ADD_API_CASE(gen_buffers, "Invalid glGenBuffers() usage",
		{
			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if n is negative.");
			glGenBuffers(-1, 0);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;
		});
	ES3F_ADD_API_CASE(buffer_data, "Invalid glBufferData() usage",
		{
			GLuint buffer;
			glGenBuffers(1, &buffer);
			glBindBuffer(GL_ARRAY_BUFFER, buffer);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not GL_ARRAY_BUFFER or GL_ELEMENT_ARRAY_BUFFER.");
			glBufferData(-1, 0, NULL, GL_STREAM_DRAW);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if usage is not GL_STREAM_DRAW, GL_STATIC_DRAW, or GL_DYNAMIC_DRAW.");
			glBufferData(GL_ARRAY_BUFFER, 0, NULL, -1);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if size is negative.");
			glBufferData(GL_ARRAY_BUFFER, -1, NULL, GL_STREAM_DRAW);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the reserved buffer object name 0 is bound to target.");
			glBindBuffer(GL_ARRAY_BUFFER, 0);
			glBufferData(GL_ARRAY_BUFFER, 0, NULL, GL_STREAM_DRAW);
			expectError(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			glDeleteBuffers(1, &buffer);
		});
	ES3F_ADD_API_CASE(buffer_sub_data, "Invalid glBufferSubData() usage",
		{
			GLuint buffer;
			glGenBuffers(1, &buffer);
			glBindBuffer(GL_ARRAY_BUFFER, buffer);
			glBufferData(GL_ARRAY_BUFFER, 10, 0, GL_STREAM_DRAW);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not GL_ARRAY_BUFFER or GL_ELEMENT_ARRAY_BUFFER.");
			glBufferSubData(-1, 1, 1, 0);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the reserved buffer object name 0 is bound to target.");
			glBindBuffer(GL_ARRAY_BUFFER, 0);
			glBufferSubData(GL_ARRAY_BUFFER, 1, 1, 0);
			expectError(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the buffer object being updated is mapped.");
			glBindBuffer(GL_ARRAY_BUFFER, buffer);
			glMapBufferRange(GL_ARRAY_BUFFER, 0, 5, GL_MAP_READ_BIT);
			expectError(GL_NO_ERROR);
			glBufferSubData(GL_ARRAY_BUFFER, 1, 1, 0);
			expectError(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			glDeleteBuffers(1, &buffer);
		});
	ES3F_ADD_API_CASE(buffer_sub_data_size_offset, "Invalid glBufferSubData() usage",
		{
			GLuint buffer;
			glGenBuffers(1, &buffer);
			glBindBuffer(GL_ARRAY_BUFFER, buffer);
			glBufferData(GL_ARRAY_BUFFER, 10, 0, GL_STREAM_DRAW);

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if offset or size is negative, or if together they define a region of memory that extends beyond the buffer object's allocated data store.");
			glBufferSubData(GL_ARRAY_BUFFER, -1, 1, 0);
			expectError(GL_INVALID_VALUE);
			glBufferSubData(GL_ARRAY_BUFFER, -1, -1, 0);
			expectError(GL_INVALID_VALUE);
			glBufferSubData(GL_ARRAY_BUFFER, 1, -1, 0);
			expectError(GL_INVALID_VALUE);
			glBufferSubData(GL_ARRAY_BUFFER, 15, 1, 0);
			expectError(GL_INVALID_VALUE);
			glBufferSubData(GL_ARRAY_BUFFER, 1, 15, 0);
			expectError(GL_INVALID_VALUE);
			glBufferSubData(GL_ARRAY_BUFFER, 8, 8, 0);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			glDeleteBuffers(1, &buffer);
		});
	ES3F_ADD_API_CASE(clear, "Invalid glClear() usage",
		{
			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if any bit other than the three defined bits is set in mask.");
			glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
			expectError(GL_NO_ERROR);
			glClear(0x00000200);
			expectError(GL_INVALID_VALUE);
			glClear(0x00001000);
			expectError(GL_INVALID_VALUE);
			glClear(0x00000010);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;
		});
	ES3F_ADD_API_CASE(read_pixels, "Invalid glReadPixels() usage",
		{
			std::vector<GLubyte> ubyteData(4);

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the combination of format and type is unsupported.");
			glReadPixels(0, 0, 1, 1, GL_LUMINANCE_ALPHA, GL_UNSIGNED_SHORT_4_4_4_4, &ubyteData[0]);
			expectError(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if either width or height is negative.");
			glReadPixels(0, 0, -1, 1, GL_RGBA, GL_UNSIGNED_BYTE, &ubyteData[0]);
			expectError(GL_INVALID_VALUE);
			glReadPixels(0, 0, 1, -1, GL_RGBA, GL_UNSIGNED_BYTE, &ubyteData[0]);
			expectError(GL_INVALID_VALUE);
			glReadPixels(0, 0, -1, -1, GL_RGBA, GL_UNSIGNED_BYTE, &ubyteData[0]);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_FRAMEBUFFER_OPERATION is generated if the currently bound framebuffer is not framebuffer complete.");
			GLuint fbo;
			glGenFramebuffers(1, &fbo);
			glBindFramebuffer(GL_FRAMEBUFFER, fbo);
			glCheckFramebufferStatus(GL_FRAMEBUFFER);
			glReadPixels(0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, &ubyteData[0]);
			expectError(GL_INVALID_FRAMEBUFFER_OPERATION);
			m_log << TestLog::EndSection;

			glDeleteFramebuffers(1, &fbo);
		});
	ES3F_ADD_API_CASE(read_pixels_format_mismatch, "Invalid glReadPixels() usage",
		{
			std::vector<GLubyte> ubyteData(4);
			std::vector<GLushort> ushortData(4);

			m_log << TestLog::Section("", "Unsupported combinations of format and type will generate an INVALID_OPERATION error.");
			glReadPixels(0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_SHORT_5_6_5, &ushortData[0]);
			expectError(GL_INVALID_OPERATION);
			glReadPixels(0, 0, 1, 1, GL_ALPHA, GL_UNSIGNED_SHORT_5_6_5, &ushortData[0]);
			expectError(GL_INVALID_OPERATION);
			glReadPixels(0, 0, 1, 1, GL_RGB, GL_UNSIGNED_SHORT_4_4_4_4, &ushortData[0]);
			expectError(GL_INVALID_OPERATION);
			glReadPixels(0, 0, 1, 1, GL_ALPHA, GL_UNSIGNED_SHORT_4_4_4_4, &ushortData[0]);
			expectError(GL_INVALID_OPERATION);
			glReadPixels(0, 0, 1, 1, GL_RGB, GL_UNSIGNED_SHORT_5_5_5_1, &ushortData[0]);
			expectError(GL_INVALID_OPERATION);
			glReadPixels(0, 0, 1, 1, GL_ALPHA, GL_UNSIGNED_SHORT_5_5_5_1, &ushortData[0]);
			expectError(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_RGBA/GL_UNSIGNED_BYTE is always accepted and the other acceptable pair can be discovered by querying GL_IMPLEMENTATION_COLOR_READ_FORMAT and GL_IMPLEMENTATION_COLOR_READ_TYPE.");
			glReadPixels(0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, &ubyteData[0]);
			expectError(GL_NO_ERROR);
			GLint readFormat;
			GLint readType;
			glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_FORMAT, &readFormat);
			glGetIntegerv(GL_IMPLEMENTATION_COLOR_READ_TYPE, &readType);
			glReadPixels(0, 0, 1, 1, readFormat, readType, &ubyteData[0]);
			expectError(GL_NO_ERROR);
			m_log << TestLog::EndSection;
		});
	ES3F_ADD_API_CASE(read_pixels_fbo_format_mismatch, "Invalid glReadPixels() usage",
		{
			std::vector<GLubyte>	ubyteData(4);
			std::vector<float>		floatData(4);
			deUint32				fbo;
			deUint32				texture;

			glGenTextures			(1, &texture);
			glBindTexture			(GL_TEXTURE_2D, texture);
			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
			glGenFramebuffers		(1, &fbo);
			glBindFramebuffer		(GL_FRAMEBUFFER, fbo);
			glFramebufferTexture2D	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);
			expectError				(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if currently bound framebuffer format is incompatible with format and type.");

			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
			glFramebufferTexture2D	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);
			glCheckFramebufferStatus(GL_FRAMEBUFFER);
			expectError				(GL_NO_ERROR);
			glReadPixels			(0, 0, 1, 1, GL_RGBA, GL_FLOAT, &floatData[0]);
			expectError				(GL_INVALID_OPERATION);

			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA32I, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, NULL);
			glFramebufferTexture2D	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);
			glCheckFramebufferStatus(GL_FRAMEBUFFER);
			expectError				(GL_NO_ERROR);
			glReadPixels			(0, 0, 1, 1, GL_RGBA, GL_FLOAT, &floatData[0]);
			expectError				(GL_INVALID_OPERATION);

			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA32UI, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, NULL);
			glFramebufferTexture2D	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);
			glCheckFramebufferStatus(GL_FRAMEBUFFER);
			expectError				(GL_NO_ERROR);
			glReadPixels			(0, 0, 1, 1, GL_RGBA, GL_FLOAT, &floatData[0]);
			expectError				(GL_INVALID_OPERATION);

			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if GL_READ_FRAMEBUFFER_BINDING is non-zero, the read framebuffer is complete, and the value of GL_SAMPLE_BUFFERS for the read framebuffer is greater than zero.");

			int			binding			= -1;
			int			sampleBuffers;
			deUint32	rbo;

			glGenRenderbuffers(1, &rbo);
			glBindRenderbuffer(GL_RENDERBUFFER, rbo);
			glRenderbufferStorageMultisample(GL_RENDERBUFFER, 4, GL_RGBA8, 32, 32);
			glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbo);

			glGetIntegerv			(GL_READ_FRAMEBUFFER_BINDING, &binding);
			m_log << TestLog::Message << "// GL_READ_FRAMEBUFFER_BINDING: " << binding << TestLog::EndMessage;
			glCheckFramebufferStatus(GL_FRAMEBUFFER);
			glGetIntegerv			(GL_SAMPLE_BUFFERS, &sampleBuffers);
			m_log << TestLog::Message << "// GL_SAMPLE_BUFFERS: " << sampleBuffers << TestLog::EndMessage;
			expectError				(GL_NO_ERROR);

			if (binding == 0 || sampleBuffers <= 0)
			{
				m_log << TestLog::Message << "// ERROR: expected GL_READ_FRAMEBUFFER_BINDING to be non-zero and GL_SAMPLE_BUFFERS to be greater than zero" << TestLog::EndMessage;
				if (m_testCtx.getTestResult() == QP_TEST_RESULT_PASS)
					m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Got invalid value");
			}
			else
			{
				glReadPixels	(0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, &ubyteData[0]);
				expectError		(GL_INVALID_OPERATION);
			}

			m_log << TestLog::EndSection;

			glBindRenderbuffer		(GL_RENDERBUFFER, 0);
			glBindTexture			(GL_TEXTURE_2D, 0);
			glBindFramebuffer		(GL_FRAMEBUFFER, 0);
			glDeleteFramebuffers	(1, &fbo);
			glDeleteTextures		(1, &texture);
			glDeleteRenderbuffers	(1, &rbo);
		});
	ES3F_ADD_API_CASE(bind_buffer_range, "Invalid glBindBufferRange() usage",
		{
			deUint32 bufU;
			glGenBuffers(1, &bufU);
			glBindBuffer(GL_UNIFORM_BUFFER, bufU);
			glBufferData(GL_UNIFORM_BUFFER, 16, NULL, GL_STREAM_DRAW);

			deUint32 bufTF;
			glGenBuffers(1, &bufTF);
			glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, bufTF);
			glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER, 16, NULL, GL_STREAM_DRAW);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not GL_TRANSFORM_FEEDBACK_BUFFER or GL_UNIFORM_BUFFER.");
			glBindBufferRange(GL_ARRAY_BUFFER, 0, bufU, 0, 4);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if target is GL_TRANSFORM_FEEDBACK_BUFFER and index is greater than or equal to GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS.");
			int maxTFSize;
			glGetIntegerv(GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, &maxTFSize);
			glBindBufferRange(GL_TRANSFORM_FEEDBACK_BUFFER, maxTFSize, bufTF, 0, 4);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if target is GL_UNIFORM_BUFFER and index is greater than or equal to GL_MAX_UNIFORM_BUFFER_BINDINGS.");
			int maxUSize;
			glGetIntegerv(GL_MAX_UNIFORM_BUFFER_BINDINGS, &maxUSize);
			glBindBufferRange(GL_UNIFORM_BUFFER, maxUSize, bufU, 0, 4);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if size is less than or equal to zero.");
			glBindBufferRange(GL_UNIFORM_BUFFER, 0, bufU, 0, -1);
			expectError(GL_INVALID_VALUE);
			glBindBufferRange(GL_UNIFORM_BUFFER, 0, bufU, 0, 0);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if target is GL_TRANSFORM_FEEDBACK_BUFFER and size or offset are not multiples of 4.");
			glBindBufferRange(GL_TRANSFORM_FEEDBACK_BUFFER, 0, bufTF, 4, 5);
			expectError(GL_INVALID_VALUE);
			glBindBufferRange(GL_TRANSFORM_FEEDBACK_BUFFER, 0, bufTF, 5, 4);
			expectError(GL_INVALID_VALUE);
			glBindBufferRange(GL_TRANSFORM_FEEDBACK_BUFFER, 0, bufTF, 5, 7);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if target is GL_UNIFORM_BUFFER and offset is not a multiple of GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT.");
			int alignment;
			glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &alignment);
			glBindBufferRange(GL_UNIFORM_BUFFER, 0, bufU, alignment+1, 4);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			glDeleteBuffers(1, &bufU);
			glDeleteBuffers(1, &bufTF);
		});
	ES3F_ADD_API_CASE(bind_buffer_base, "Invalid glBindBufferBase() usage",
		{
			deUint32 bufU;
			glGenBuffers(1, &bufU);
			glBindBuffer(GL_UNIFORM_BUFFER, bufU);
			glBufferData(GL_UNIFORM_BUFFER, 16, NULL, GL_STREAM_DRAW);

			deUint32 bufTF;
			glGenBuffers(1, &bufTF);
			glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, bufTF);
			glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER, 16, NULL, GL_STREAM_DRAW);
			expectError(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not GL_TRANSFORM_FEEDBACK_BUFFER or GL_UNIFORM_BUFFER.");
			glBindBufferBase(-1, 0, bufU);
			expectError(GL_INVALID_ENUM);
			glBindBufferBase(GL_ARRAY_BUFFER, 0, bufU);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if target is GL_UNIFORM_BUFFER and index is greater than or equal to GL_MAX_UNIFORM_BUFFER_BINDINGS.");
			int maxUSize;
			glGetIntegerv(GL_MAX_UNIFORM_BUFFER_BINDINGS, &maxUSize);
			glBindBufferBase(GL_UNIFORM_BUFFER, maxUSize, bufU);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if target is GL_TRANSFORM_FEEDBACK_BUFFER andindex is greater than or equal to GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS.");
			int maxTFSize;
			glGetIntegerv(GL_MAX_TRANSFORM_FEEDBACK_SEPARATE_ATTRIBS, &maxTFSize);
			glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, maxTFSize, bufTF);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			glDeleteBuffers(1, &bufU);
			glDeleteBuffers(1, &bufTF);
		});
	ES3F_ADD_API_CASE(clear_bufferiv, "Invalid glClearBufferiv() usage",
		{
			std::vector<int>		data(32*32);
			deUint32				fbo;
			deUint32				texture;

			glGenTextures			(1, &texture);
			glBindTexture			(GL_TEXTURE_2D, texture);
			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA32I, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, NULL);
			glGenFramebuffers		(1, &fbo);
			glBindFramebuffer		(GL_FRAMEBUFFER, fbo);
			glFramebufferTexture2D	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);
			glCheckFramebufferStatus(GL_FRAMEBUFFER);
			expectError				(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if buffer is not an accepted value.");
			glClearBufferiv(-1, 0, &data[0]);
			expectError(GL_INVALID_ENUM);
			glClearBufferiv(GL_FRAMEBUFFER, 0, &data[0]);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if buffer is GL_COLOR, GL_FRONT, GL_BACK, GL_LEFT, GL_RIGHT, or GL_FRONT_AND_BACK and drawBuffer is greater than or equal to GL_MAX_DRAW_BUFFERS.");
			int maxDrawBuffers;
			glGetIntegerv(GL_MAX_DRAW_BUFFERS, &maxDrawBuffers);
			glClearBufferiv(GL_COLOR, maxDrawBuffers, &data[0]);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if buffer is GL_DEPTH or GL_DEPTH_STENCIL.");
			glClearBufferiv(GL_DEPTH, 1, &data[0]);
			expectError(GL_INVALID_ENUM);
			glClearBufferiv(GL_DEPTH_STENCIL, 1, &data[0]);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if buffer is GL_STENCIL and drawBuffer is not zero.");
			glClearBufferiv(GL_STENCIL, 1, &data[0]);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			glDeleteFramebuffers(1, &fbo);
			glDeleteTextures(1, &texture);
		});
	ES3F_ADD_API_CASE(clear_bufferuiv, "Invalid glClearBufferuiv() usage",
		{
			std::vector<deUint32>	data(32*32);
			deUint32				fbo;
			deUint32				texture;

			glGenTextures			(1, &texture);
			glBindTexture			(GL_TEXTURE_2D, texture);
			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA32UI, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, NULL);
			glGenFramebuffers		(1, &fbo);
			glBindFramebuffer		(GL_FRAMEBUFFER, fbo);
			glFramebufferTexture2D	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);
			glCheckFramebufferStatus(GL_FRAMEBUFFER);
			expectError				(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if buffer is not an accepted value.");
			glClearBufferuiv(-1, 0, &data[0]);
			expectError(GL_INVALID_ENUM);
			glClearBufferuiv(GL_FRAMEBUFFER, 0, &data[0]);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if buffer is GL_COLOR, GL_FRONT, GL_BACK, GL_LEFT, GL_RIGHT, or GL_FRONT_AND_BACK and drawBuffer is greater than or equal to GL_MAX_DRAW_BUFFERS.");
			int maxDrawBuffers;
			glGetIntegerv(GL_MAX_DRAW_BUFFERS, &maxDrawBuffers);
			glClearBufferuiv(GL_COLOR, maxDrawBuffers, &data[0]);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if buffer is GL_DEPTH, GL_STENCIL or GL_DEPTH_STENCIL.");
			glClearBufferuiv(GL_DEPTH, 1, &data[0]);
			expectError(GL_INVALID_ENUM);
			glClearBufferuiv(GL_STENCIL, 1, &data[0]);
			expectError(GL_INVALID_ENUM);
			glClearBufferuiv(GL_DEPTH_STENCIL, 1, &data[0]);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			glDeleteFramebuffers(1, &fbo);
			glDeleteTextures(1, &texture);
		});
	ES3F_ADD_API_CASE(clear_bufferfv, "Invalid glClearBufferfv() usage",
		{
			std::vector<float>		data(32*32);
			deUint32				fbo;
			deUint32				texture;

			glGenTextures			(1, &texture);
			glBindTexture			(GL_TEXTURE_2D, texture);
			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA32F, 32, 32, 0, GL_RGBA, GL_FLOAT, NULL);
			glGenFramebuffers		(1, &fbo);
			glBindFramebuffer		(GL_FRAMEBUFFER, fbo);
			glFramebufferTexture2D	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);
			glCheckFramebufferStatus(GL_FRAMEBUFFER);
			expectError				(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if buffer is not an accepted value.");
			glClearBufferfv(-1, 0, &data[0]);
			expectError(GL_INVALID_ENUM);
			glClearBufferfv(GL_FRAMEBUFFER, 0, &data[0]);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if buffer is GL_COLOR, GL_FRONT, GL_BACK, GL_LEFT, GL_RIGHT, or GL_FRONT_AND_BACK and drawBuffer is greater than or equal to GL_MAX_DRAW_BUFFERS.");
			int maxDrawBuffers;
			glGetIntegerv(GL_MAX_DRAW_BUFFERS, &maxDrawBuffers);
			glClearBufferfv(GL_COLOR, maxDrawBuffers, &data[0]);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if buffer is GL_STENCIL or GL_DEPTH_STENCIL.");
			glClearBufferfv(GL_STENCIL, 1, &data[0]);
			expectError(GL_INVALID_ENUM);
			glClearBufferfv(GL_DEPTH_STENCIL, 1, &data[0]);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if buffer is GL_DEPTH and drawBuffer is not zero.");
			glClearBufferfv(GL_DEPTH, 1, &data[0]);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			glDeleteFramebuffers(1, &fbo);
			glDeleteTextures(1, &texture);
		});
	ES3F_ADD_API_CASE(clear_bufferfi, "Invalid glClearBufferfi() usage",
		{
			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if buffer is not an accepted value.");
			glClearBufferfi(-1, 0, 1.0f, 1);
			expectError(GL_INVALID_ENUM);
			glClearBufferfi(GL_FRAMEBUFFER, 0, 1.0f, 1);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if buffer is not GL_DEPTH_STENCIL.");
			glClearBufferfi(GL_DEPTH, 0, 1.0f, 1);
			expectError(GL_INVALID_ENUM);
			glClearBufferfi(GL_STENCIL, 0, 1.0f, 1);
			expectError(GL_INVALID_ENUM);
			glClearBufferfi(GL_COLOR, 0, 1.0f, 1);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if buffer is GL_DEPTH_STENCIL and drawBuffer is not zero.");
			glClearBufferfi(GL_DEPTH_STENCIL, 1, 1.0f, 1);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;
		});
	ES3F_ADD_API_CASE(copy_buffer_sub_data, "Invalid glCopyBufferSubData() usage",
		{
			deUint32				buf[2];
			std::vector<float>		data(32*32);

			glGenBuffers			(2, buf);
			glBindBuffer			(GL_COPY_READ_BUFFER, buf[0]);
			glBufferData			(GL_COPY_READ_BUFFER, 32, &data[0], GL_DYNAMIC_COPY);
			glBindBuffer			(GL_COPY_WRITE_BUFFER, buf[1]);
			glBufferData			(GL_COPY_WRITE_BUFFER, 32, &data[0], GL_DYNAMIC_COPY);
			expectError				(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if any of readoffset, writeoffset or size is negative.");
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, -4);
			expectError				(GL_INVALID_VALUE);
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, -1, 0, 4);
			expectError				(GL_INVALID_VALUE);
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, -1, 4);
			expectError				(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if readoffset + size exceeds the size of the buffer object bound to readtarget.");
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, 36);
			expectError				(GL_INVALID_VALUE);
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 24, 0, 16);
			expectError				(GL_INVALID_VALUE);
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 36, 0, 4);
			expectError				(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if writeoffset + size exceeds the size of the buffer object bound to writetarget.");
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, 36);
			expectError				(GL_INVALID_VALUE);
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 24, 16);
			expectError				(GL_INVALID_VALUE);
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 36, 4);
			expectError				(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if the same buffer object is bound to both readtarget and writetarget and the ranges [readoffset, readoffset + size) and [writeoffset, writeoffset + size) overlap.");
			glBindBuffer			(GL_COPY_WRITE_BUFFER, buf[0]);
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 16, 4);
			expectError				(GL_NO_ERROR);
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, 4);
			expectError				(GL_INVALID_VALUE);
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 16, 18);
			expectError				(GL_INVALID_VALUE);
			glBindBuffer			(GL_COPY_WRITE_BUFFER, buf[1]);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if zero is bound to readtarget or writetarget.");
			glBindBuffer			(GL_COPY_READ_BUFFER, 0);
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, 16);
			expectError				(GL_INVALID_OPERATION);

			glBindBuffer			(GL_COPY_READ_BUFFER, buf[0]);
			glBindBuffer			(GL_COPY_WRITE_BUFFER, 0);
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, 16);
			expectError				(GL_INVALID_OPERATION);

			glBindBuffer			(GL_COPY_WRITE_BUFFER, buf[1]);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the buffer object bound to either readtarget or writetarget is mapped.");
			glMapBufferRange		(GL_COPY_READ_BUFFER, 0, 4, GL_MAP_READ_BIT);
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, 16);
			expectError				(GL_INVALID_OPERATION);
			glUnmapBuffer			(GL_COPY_READ_BUFFER);

			glMapBufferRange		(GL_COPY_WRITE_BUFFER, 0, 4, GL_MAP_READ_BIT);
			glCopyBufferSubData		(GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, 0, 0, 16);
			expectError				(GL_INVALID_OPERATION);
			glUnmapBuffer			(GL_COPY_WRITE_BUFFER);
			m_log << TestLog::EndSection;

			glDeleteBuffers(2, buf);
		});
	ES3F_ADD_API_CASE(draw_buffers, "Invalid glDrawBuffers() usage",
		{
			deUint32				fbo;
			deUint32				texture;
			int						maxDrawBuffers;
			glGetIntegerv			(GL_MAX_DRAW_BUFFERS, &maxDrawBuffers);
			std::vector<deUint32>	values(maxDrawBuffers+1);
			values[0]				= GL_NONE;
			values[1]				= GL_BACK;
			values[2]				= GL_COLOR_ATTACHMENT0;
			values[3]				= GL_DEPTH_ATTACHMENT;
			std::vector<GLfloat>	data(32*32);

			glGenTextures			(1, &texture);
			glBindTexture			(GL_TEXTURE_2D, texture);
			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA8, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
			glGenFramebuffers		(1, &fbo);
			glBindFramebuffer		(GL_FRAMEBUFFER, fbo);
			glFramebufferTexture2D	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);
			glCheckFramebufferStatus(GL_FRAMEBUFFER);
			expectError				(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if one of the values in bufs is not an accepted value.");
			glDrawBuffers			(2, &values[2]);
			expectError				(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the GL is bound to the default framebuffer and n is not 1.");
			glBindFramebuffer		(GL_FRAMEBUFFER, 0);
			glDrawBuffers			(2, &values[0]);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the GL is bound to the default framebuffer and the value in bufs is one of the GL_COLOR_ATTACHMENTn tokens.");
			glBindFramebuffer		(GL_FRAMEBUFFER, 0);
			glDrawBuffers			(1, &values[2]);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the GL is bound to a framebuffer object and the ith buffer listed in bufs is anything other than GL_NONE or GL_COLOR_ATTACHMENTSi.");
			glBindFramebuffer		(GL_FRAMEBUFFER, fbo);
			glDrawBuffers			(1, &values[1]);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if n is less than 0 or greater than GL_MAX_DRAW_BUFFERS.");
			glDrawBuffers			(-1, &values[1]);
			expectError				(GL_INVALID_VALUE);
			glDrawBuffers			(maxDrawBuffers+1, &values[0]);
			expectError				(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			glDeleteTextures(1, &texture);
			glDeleteFramebuffers(1, &fbo);
		});
	ES3F_ADD_API_CASE(flush_mapped_buffer_range, "Invalid glFlushMappedBufferRange() usage",
		{
			deUint32				buf;
			std::vector<GLfloat>	data(32);

			glGenBuffers			(1, &buf);
			glBindBuffer			(GL_ARRAY_BUFFER, buf);
			glBufferData			(GL_ARRAY_BUFFER, 32, &data[0], GL_STATIC_READ);
			glMapBufferRange		(GL_ARRAY_BUFFER, 0, 16, GL_MAP_WRITE_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
			expectError				(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if offset or length is negative, or if offset + length exceeds the size of the mapping.");
			glFlushMappedBufferRange(GL_ARRAY_BUFFER, -1, 1);
			expectError				(GL_INVALID_VALUE);
			glFlushMappedBufferRange(GL_ARRAY_BUFFER, 0, -1);
			expectError				(GL_INVALID_VALUE);
			glFlushMappedBufferRange(GL_ARRAY_BUFFER, 12, 8);
			expectError				(GL_INVALID_VALUE);
			glFlushMappedBufferRange(GL_ARRAY_BUFFER, 24, 4);
			expectError				(GL_INVALID_VALUE);
			glFlushMappedBufferRange(GL_ARRAY_BUFFER, 0, 24);
			expectError				(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if zero is bound to target.");
			glBindBuffer			(GL_ARRAY_BUFFER, 0);
			glFlushMappedBufferRange(GL_ARRAY_BUFFER, 0, 8);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the buffer bound to target is not mapped, or is mapped without the GL_MAP_FLUSH_EXPLICIT flag.");
			glBindBuffer			(GL_ARRAY_BUFFER, buf);
			glUnmapBuffer			(GL_ARRAY_BUFFER);
			glFlushMappedBufferRange(GL_ARRAY_BUFFER, 0, 8);
			expectError				(GL_INVALID_OPERATION);
			glMapBufferRange		(GL_ARRAY_BUFFER, 0, 16, GL_MAP_WRITE_BIT);
			glFlushMappedBufferRange(GL_ARRAY_BUFFER, 0, 8);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			glUnmapBuffer			(GL_ARRAY_BUFFER);
			glDeleteBuffers			(1, &buf);
		});
	ES3F_ADD_API_CASE(map_buffer_range, "Invalid glMapBufferRange() usage",
		{
			deUint32				buf;
			std::vector<GLfloat>	data(32);

			glGenBuffers			(1, &buf);
			glBindBuffer			(GL_ARRAY_BUFFER, buf);
			glBufferData			(GL_ARRAY_BUFFER, 32, &data[0], GL_DYNAMIC_COPY);
			expectError				(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if either of offset or length is negative.");
			glMapBufferRange		(GL_ARRAY_BUFFER, -1, 1, GL_MAP_READ_BIT);
			expectError				(GL_INVALID_VALUE);

			glMapBufferRange		(GL_ARRAY_BUFFER, 1, -1, GL_MAP_READ_BIT);
			expectError				(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if offset + length is greater than the value of GL_BUFFER_SIZE.");
			glMapBufferRange		(GL_ARRAY_BUFFER, 0, 33, GL_MAP_READ_BIT);
			expectError				(GL_INVALID_VALUE);

			glMapBufferRange		(GL_ARRAY_BUFFER, 32, 1, GL_MAP_READ_BIT);
			expectError				(GL_INVALID_VALUE);

			glMapBufferRange		(GL_ARRAY_BUFFER, 16, 17, GL_MAP_READ_BIT);
			expectError				(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if access has any bits set other than those accepted.");
			glMapBufferRange		(GL_ARRAY_BUFFER, 0, 16, GL_MAP_READ_BIT | 0x1000);
			expectError				(GL_INVALID_VALUE);

			glMapBufferRange		(GL_ARRAY_BUFFER, 0, 16, GL_MAP_WRITE_BIT | 0x1000);
			expectError				(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the buffer is already in a mapped state.");
			glMapBufferRange		(GL_ARRAY_BUFFER, 0, 16, GL_MAP_WRITE_BIT);
			expectError				(GL_NO_ERROR);
			glMapBufferRange		(GL_ARRAY_BUFFER, 16, 8, GL_MAP_READ_BIT);
			expectError				(GL_INVALID_OPERATION);
			glUnmapBuffer			(GL_ARRAY_BUFFER);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if neither GL_MAP_READ_BIT or GL_MAP_WRITE_BIT is set.");
			glMapBufferRange		(GL_ARRAY_BUFFER, 0, 16, GL_MAP_INVALIDATE_RANGE_BIT);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if ");
			glMapBufferRange		(GL_ARRAY_BUFFER, 0, 16, GL_MAP_INVALIDATE_RANGE_BIT);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if GL_MAP_READ_BIT is set and any of GL_MAP_INVALIDATE_RANGE_BIT, GL_MAP_INVALIDATE_BUFFER_BIT, or GL_MAP_UNSYNCHRONIZED_BIT is set.");
			glMapBufferRange		(GL_ARRAY_BUFFER, 0, 16, GL_MAP_READ_BIT | GL_MAP_INVALIDATE_RANGE_BIT);
			expectError				(GL_INVALID_OPERATION);

			glMapBufferRange		(GL_ARRAY_BUFFER, 0, 16, GL_MAP_READ_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
			expectError				(GL_INVALID_OPERATION);

			glMapBufferRange		(GL_ARRAY_BUFFER, 0, 16, GL_MAP_READ_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if GL_MAP_FLUSH_EXPLICIT_BIT is set and GL_MAP_WRITE_BIT is not set.");
			glMapBufferRange		(GL_ARRAY_BUFFER, 0, 16, GL_MAP_READ_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			glDeleteBuffers			(1, &buf);
		});
	ES3F_ADD_API_CASE(read_buffer, "Invalid glReadBuffer() usage",
		{
			deUint32				fbo;
			deUint32				texture;
			int						maxColorAttachments;

			glGetIntegerv			(GL_MAX_COLOR_ATTACHMENTS, &maxColorAttachments);
			glGenTextures			(1, &texture);
			glBindTexture			(GL_TEXTURE_2D, texture);
			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA8, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
			glGenFramebuffers		(1, &fbo);
			glBindFramebuffer		(GL_FRAMEBUFFER, fbo);
			glFramebufferTexture2D	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);
			glCheckFramebufferStatus(GL_FRAMEBUFFER);
			expectError				(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if mode is not GL_BACK, GL_NONE, or GL_COLOR_ATTACHMENTi.");
			glReadBuffer			(GL_NONE);
			expectError				(GL_NO_ERROR);
			glReadBuffer			(1);
			expectError				(GL_INVALID_ENUM);
			glReadBuffer			(GL_FRAMEBUFFER);
			expectError				(GL_INVALID_ENUM);
			glReadBuffer			(GL_COLOR_ATTACHMENT0 - 1);
			expectError				(GL_INVALID_ENUM);
			glReadBuffer			(GL_FRONT);
			expectError				(GL_INVALID_ENUM);

			// \ note Spec isn't actually clear here, but it is safe to assume that
			//		  GL_DEPTH_ATTACHMENT can't be interpreted as GL_COLOR_ATTACHMENTm
			//		  where m = (GL_DEPTH_ATTACHMENT - GL_COLOR_ATTACHMENT0).
			glReadBuffer			(GL_DEPTH_ATTACHMENT);
			expectError				(GL_INVALID_ENUM);
			glReadBuffer			(GL_STENCIL_ATTACHMENT);
			expectError				(GL_INVALID_ENUM);
			glReadBuffer			(GL_STENCIL_ATTACHMENT+1);
			expectError				(GL_INVALID_ENUM);
			glReadBuffer			(0xffffffffu);
			expectError				(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION error is generated if src is GL_BACK or if src is GL_COLOR_ATTACHMENTm where m is greater than or equal to the value of GL_MAX_COLOR_ATTACHMENTS.");
			glReadBuffer			(GL_BACK);
			expectError				(GL_INVALID_OPERATION);
			glReadBuffer			(GL_COLOR_ATTACHMENT0 + maxColorAttachments);
			expectError				(GL_INVALID_OPERATION);

			if (GL_COLOR_ATTACHMENT0+maxColorAttachments < GL_DEPTH_ATTACHMENT-1)
			{
				glReadBuffer			(GL_DEPTH_ATTACHMENT - 1);
				expectError				(GL_INVALID_OPERATION);
			}

			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the current framebuffer is the default framebuffer and mode is not GL_NONE or GL_BACK.");
			glBindFramebuffer		(GL_FRAMEBUFFER, 0);
			glReadBuffer			(GL_COLOR_ATTACHMENT0);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the current framebuffer is a named framebuffer and mode is not GL_NONE or GL_COLOR_ATTACHMENTi.");
			glBindFramebuffer		(GL_FRAMEBUFFER, fbo);
			glReadBuffer			(GL_BACK);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			glDeleteTextures(1, &texture);
			glDeleteFramebuffers(1, &fbo);
		});
	ES3F_ADD_API_CASE(unmap_buffer, "Invalid glUnmapBuffer() usage",
		{
			deUint32			buf;
			std::vector<GLfloat>	data(32);

			glGenBuffers			(1, &buf);
			glBindBuffer			(GL_ARRAY_BUFFER, buf);
			glBufferData			(GL_ARRAY_BUFFER, 32, &data[0], GL_DYNAMIC_COPY);
			expectError				(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the buffer data store is already in an unmapped state.");
			glUnmapBuffer			(GL_ARRAY_BUFFER);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			glDeleteBuffers			(1, &buf);
		});
	// Framebuffer Objects

	ES3F_ADD_API_CASE(bind_framebuffer, "Invalid glBindFramebuffer() usage",
		{
			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not GL_FRAMEBUFFER.");
			glBindFramebuffer(-1, 0);
			expectError(GL_INVALID_ENUM);
			glBindFramebuffer(GL_RENDERBUFFER, 0);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;
		});
	ES3F_ADD_API_CASE(bind_renderbuffer, "Invalid glBindRenderbuffer() usage",
		{
			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not GL_RENDERBUFFER.");
			glBindRenderbuffer(-1, 0);
			expectError(GL_INVALID_ENUM);
			glBindRenderbuffer(GL_FRAMEBUFFER, 0);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;
		});
	ES3F_ADD_API_CASE(check_framebuffer_status, "Invalid glCheckFramebufferStatus() usage",
		{
			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not GL_FRAMEBUFFER.");
			glCheckFramebufferStatus(-1);
			expectError(GL_INVALID_ENUM);
			glCheckFramebufferStatus(GL_RENDERBUFFER);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;
		});
	ES3F_ADD_API_CASE(gen_framebuffers, "Invalid glGenFramebuffers() usage",
		{
			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if n is negative.");
			glGenFramebuffers(-1, 0);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;
		});
	ES3F_ADD_API_CASE(gen_renderbuffers, "Invalid glGenRenderbuffers() usage",
		{
			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if n is negative.");
			glGenRenderbuffers(-1, 0);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;
		});
	ES3F_ADD_API_CASE(delete_framebuffers, "Invalid glDeleteFramebuffers() usage",
		{
			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if n is negative.");
			glDeleteFramebuffers(-1, 0);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;
		});
	ES3F_ADD_API_CASE(delete_renderbuffers, "Invalid glDeleteRenderbuffers() usage",
		{;
			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if n is negative.");
			glDeleteRenderbuffers(-1, 0);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;
		});
	ES3F_ADD_API_CASE(framebuffer_renderbuffer, "Invalid glFramebufferRenderbuffer() usage",
		{
			GLuint fbo;
			GLuint rbo;
			glGenFramebuffers(1, &fbo);
			glBindFramebuffer(GL_FRAMEBUFFER, fbo);
			glGenRenderbuffers(1, &rbo);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not one of the accepted tokens.");
			glFramebufferRenderbuffer(-1, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, 0);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if renderbuffertarget is not GL_RENDERBUFFER.");
			glBindRenderbuffer(GL_RENDERBUFFER, rbo);
			glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, -1, rbo);
			expectError(GL_INVALID_ENUM);
			glBindRenderbuffer(GL_RENDERBUFFER, 0);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if renderbuffer is neither 0 nor the name of an existing renderbuffer object.");
			glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, -1);
			expectError(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if zero is bound to target.");
			glBindFramebuffer(GL_FRAMEBUFFER, 0);
			glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, 0);
			expectError(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			glDeleteRenderbuffers(1, &rbo);
			glDeleteFramebuffers(1, &fbo);
		});
	ES3F_ADD_API_CASE(framebuffer_texture2d, "Invalid glFramebufferTexture2D() usage",
		{
			GLuint fbo;
			GLuint tex2D;
			GLuint texCube;
			glGenFramebuffers(1, &fbo);
			glBindFramebuffer(GL_FRAMEBUFFER, fbo);
			glGenTextures(1, &tex2D);
			glBindTexture(GL_TEXTURE_2D, tex2D);
			glGenTextures(1, &texCube);
			glBindTexture(GL_TEXTURE_CUBE_MAP, texCube);
			expectError(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not one of the accepted tokens.");
			glFramebufferTexture2D(-1, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if textarget is not an accepted texture target.");
			glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, -1, tex2D, 0);
			expectError(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if level is less than 0 or larger than log_2 of maximum texture size.");
			int maxSize;
			glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tex2D, -1);
			expectError(GL_INVALID_VALUE);
			maxSize = deLog2Floor32(m_context.getContextInfo().getInt(GL_MAX_TEXTURE_SIZE)) + 1;
			glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tex2D, maxSize);
			expectError(GL_INVALID_VALUE);
			maxSize = deLog2Floor32(m_context.getContextInfo().getInt(GL_MAX_CUBE_MAP_TEXTURE_SIZE)) + 1;
			glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_CUBE_MAP_POSITIVE_X, texCube, maxSize);
			expectError(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if texture is neither 0 nor the name of an existing texture object.");
			glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, -1, 0);
			expectError(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if textarget and texture are not compatible.");
			glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_CUBE_MAP_POSITIVE_X, tex2D, 0);
			expectError(GL_INVALID_OPERATION);
			glDeleteTextures(1, &tex2D);

			glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texCube, 0);
			expectError(GL_INVALID_OPERATION);
			glDeleteTextures(1, &texCube);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if zero is bound to target.");
			glBindFramebuffer(GL_FRAMEBUFFER, 0);
			glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0);
			expectError(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			glDeleteFramebuffers(1, &fbo);
		});
	ES3F_ADD_API_CASE(renderbuffer_storage, "Invalid glRenderbufferStorage() usage",
		{
			deUint32				rbo;
			glGenRenderbuffers		(1, &rbo);
			glBindRenderbuffer		(GL_RENDERBUFFER, rbo);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not GL_RENDERBUFFER.");
			glRenderbufferStorage	(-1, GL_RGBA4, 1, 1);
			expectError				(GL_INVALID_ENUM);
			glRenderbufferStorage	(GL_FRAMEBUFFER, GL_RGBA4, 1, 1);
			expectError				(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if internalformat is not a color-renderable, depth-renderable, or stencil-renderable format.");
			glRenderbufferStorage	(GL_RENDERBUFFER, -1, 1, 1);
			expectError				(GL_INVALID_ENUM);

			if (!m_context.getContextInfo().isExtensionSupported("GL_EXT_color_buffer_half_float")) // GL_EXT_color_buffer_half_float disables error
			{
				glRenderbufferStorage	(GL_RENDERBUFFER, GL_RGB16F, 1, 1);
				expectError				(GL_INVALID_ENUM);
			}

			if (!m_context.getContextInfo().isExtensionSupported("GL_EXT_render_snorm")) // GL_EXT_render_snorm disables error
			{
				glRenderbufferStorage	(GL_RENDERBUFFER, GL_RGBA8_SNORM, 1, 1);
				expectError				(GL_INVALID_ENUM);
			}

			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if width or height is less than zero.");
			glRenderbufferStorage	(GL_RENDERBUFFER, GL_RGBA4, -1, 1);
			expectError				(GL_INVALID_VALUE);
			glRenderbufferStorage	(GL_RENDERBUFFER, GL_RGBA4, 1, -1);
			expectError				(GL_INVALID_VALUE);
			glRenderbufferStorage	(GL_RENDERBUFFER, GL_RGBA4, -1, -1);
			expectError				(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if width or height is greater than GL_MAX_RENDERBUFFER_SIZE.");
			GLint maxSize;
			glGetIntegerv			(GL_MAX_RENDERBUFFER_SIZE, &maxSize);
			glRenderbufferStorage	(GL_RENDERBUFFER, GL_RGBA4, 1, maxSize+1);
			expectError				(GL_INVALID_VALUE);
			glRenderbufferStorage	(GL_RENDERBUFFER, GL_RGBA4, maxSize+1, 1);
			expectError				(GL_INVALID_VALUE);
			glRenderbufferStorage	(GL_RENDERBUFFER, GL_RGBA4, maxSize+1, maxSize+1);
			expectError				(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			glDeleteRenderbuffers(1, &rbo);
		});
	ES3F_ADD_API_CASE(blit_framebuffer, "Invalid glBlitFramebuffer() usage",
		{
			deUint32				fbo[2];
			deUint32				rbo[2];
			deUint32				texture[2];

			glGenFramebuffers		(2, fbo);
			glGenTextures			(2, texture);
			glGenRenderbuffers		(2, rbo);

			glBindTexture			(GL_TEXTURE_2D, texture[0]);
			glBindRenderbuffer		(GL_RENDERBUFFER, rbo[0]);
			glBindFramebuffer		(GL_READ_FRAMEBUFFER, fbo[0]);

			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA8, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
			glRenderbufferStorage	(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, 32, 32);
			glFramebufferTexture2D	(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture[0], 0);
			glFramebufferRenderbuffer(GL_READ_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, rbo[0]);
			glCheckFramebufferStatus(GL_READ_FRAMEBUFFER);

			glBindTexture			(GL_TEXTURE_2D, texture[1]);
			glBindRenderbuffer		(GL_RENDERBUFFER, rbo[1]);
			glBindFramebuffer		(GL_DRAW_FRAMEBUFFER, fbo[1]);

			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA8, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
			glRenderbufferStorage	(GL_RENDERBUFFER, GL_DEPTH24_STENCIL8, 32, 32);
			glFramebufferTexture2D	(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture[1], 0);
			glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, rbo[1]);
			glCheckFramebufferStatus(GL_DRAW_FRAMEBUFFER);
			expectError				(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if mask contains any of the GL_DEPTH_BUFFER_BIT or GL_STENCIL_BUFFER_BIT and filter is not GL_NEAREST.");
			glBlitFramebuffer		(0, 0, 16, 16, 0, 0, 16, 16, GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT, GL_LINEAR);
			expectError				(GL_INVALID_OPERATION);
			glBlitFramebuffer		(0, 0, 16, 16, 0, 0, 16, 16, GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT, GL_LINEAR);
			expectError				(GL_INVALID_OPERATION);
			glBlitFramebuffer		(0, 0, 16, 16, 0, 0, 16, 16, GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT, GL_LINEAR);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if mask contains GL_COLOR_BUFFER_BIT and read buffer format is incompatible with draw buffer format.");
			glBindTexture			(GL_TEXTURE_2D, texture[0]);

			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA32UI, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, NULL);
			glFramebufferTexture2D	(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture[0], 0);
			m_log << TestLog::Message << "// Read buffer: GL_RGBA32UI, draw buffer: GL_RGBA" << TestLog::EndMessage;
			glBlitFramebuffer		(0, 0, 16, 16, 0, 0, 16, 16, GL_COLOR_BUFFER_BIT, GL_NEAREST);
			expectError				(GL_INVALID_OPERATION);

			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA32I, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, NULL);
			glFramebufferTexture2D	(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture[0], 0);
			m_log << TestLog::Message << "// Read buffer: GL_RGBA32I, draw buffer: GL_RGBA" << TestLog::EndMessage;
			glBlitFramebuffer		(0, 0, 16, 16, 0, 0, 16, 16, GL_COLOR_BUFFER_BIT, GL_NEAREST);
			expectError				(GL_INVALID_OPERATION);

			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA8, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
			glFramebufferTexture2D	(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture[0], 0);
			glBindTexture			(GL_TEXTURE_2D, texture[1]);
			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA32I, 32, 32, 0, GL_RGBA_INTEGER, GL_INT, NULL);
			glFramebufferTexture2D	(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture[1], 0);
			m_log << TestLog::Message << "// Read buffer: GL_RGBA8, draw buffer: GL_RGBA32I" << TestLog::EndMessage;
			glBlitFramebuffer		(0, 0, 16, 16, 0, 0, 16, 16, GL_COLOR_BUFFER_BIT, GL_NEAREST);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if filter is GL_LINEAR and the read buffer contains integer data.");
			glBindTexture			(GL_TEXTURE_2D, texture[0]);
			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA32UI, 32, 32, 0, GL_RGBA_INTEGER, GL_UNSIGNED_INT, NULL);
			glFramebufferTexture2D	(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture[0], 0);
			glTexImage2D			(GL_TEXTURE_2D, 0, GL_RGBA8, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
			glFramebufferTexture2D	(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture[1], 0);
			m_log << TestLog::Message << "// Read buffer: GL_RGBA32I, draw buffer: GL_RGBA8" << TestLog::EndMessage;
			glBlitFramebuffer		(0, 0, 16, 16, 0, 0, 16, 16, GL_COLOR_BUFFER_BIT, GL_LINEAR);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if mask contains GL_DEPTH_BUFFER_BIT or GL_STENCIL_BUFFER_BIT and the source and destination depth and stencil formats do not match.");
			glBindRenderbuffer		(GL_RENDERBUFFER, rbo[0]);
			glRenderbufferStorage	(GL_RENDERBUFFER, GL_DEPTH32F_STENCIL8, 32, 32);
			glFramebufferRenderbuffer(GL_READ_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_RENDERBUFFER, rbo[0]);
			glBlitFramebuffer		(0, 0, 16, 16, 0, 0, 16, 16, GL_DEPTH_BUFFER_BIT, GL_NEAREST);
			expectError				(GL_INVALID_OPERATION);
			glBlitFramebuffer		(0, 0, 16, 16, 0, 0, 16, 16, GL_STENCIL_BUFFER_BIT, GL_NEAREST);
			expectError				(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			glBindFramebuffer		(GL_FRAMEBUFFER, 0);
			glDeleteFramebuffers	(2, fbo);
			glDeleteTextures		(2, texture);
			glDeleteRenderbuffers	(2, rbo);
		});
	ES3F_ADD_API_CASE(blit_framebuffer_multisample, "Invalid glBlitFramebuffer() usage",
		{
			deUint32						fbo[2];
			deUint32						rbo[2];

			glGenFramebuffers				(2, fbo);
			glGenRenderbuffers				(2, rbo);

			glBindRenderbuffer				(GL_RENDERBUFFER, rbo[0]);
			glBindFramebuffer				(GL_READ_FRAMEBUFFER, fbo[0]);
			glRenderbufferStorageMultisample(GL_RENDERBUFFER, 4, GL_RGBA8, 32, 32);
			glFramebufferRenderbuffer		(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbo[0]);
			glCheckFramebufferStatus		(GL_READ_FRAMEBUFFER);

			glBindRenderbuffer				(GL_RENDERBUFFER, rbo[1]);
			glBindFramebuffer				(GL_DRAW_FRAMEBUFFER, fbo[1]);

			expectError						(GL_NO_ERROR);

			if (!m_context.getContextInfo().isExtensionSupported("GL_NV_framebuffer_multisample"))
			{
				m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if the value of GL_SAMPLE_BUFFERS for the draw buffer is greater than zero.");
				glRenderbufferStorageMultisample(GL_RENDERBUFFER, 4, GL_RGBA8, 32, 32);
				glFramebufferRenderbuffer		(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbo[1]);
				glBlitFramebuffer				(0, 0, 16, 16, 0, 0, 16, 16, GL_COLOR_BUFFER_BIT, GL_NEAREST);
				expectError						(GL_INVALID_OPERATION);
				m_log << TestLog::EndSection;

				m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if GL_SAMPLE_BUFFERS for the read buffer is greater than zero and the formats of draw and read buffers are not identical.");
				glRenderbufferStorage			(GL_RENDERBUFFER, GL_RGBA4, 32, 32);
				glFramebufferRenderbuffer		(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbo[1]);
				glBlitFramebuffer				(0, 0, 16, 16, 0, 0, 16, 16, GL_COLOR_BUFFER_BIT, GL_NEAREST);
				expectError						(GL_INVALID_OPERATION);
				m_log << TestLog::EndSection;

				m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if GL_SAMPLE_BUFFERS for the read buffer is greater than zero and the source and destination rectangles are not defined with the same (X0, Y0) and (X1, Y1) bounds.");
				glRenderbufferStorage			(GL_RENDERBUFFER, GL_RGBA8, 32, 32);
				glFramebufferRenderbuffer		(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbo[1]);
				glBlitFramebuffer				(0, 0, 16, 16, 2, 2, 18, 18, GL_COLOR_BUFFER_BIT, GL_NEAREST);
				expectError						(GL_INVALID_OPERATION);
				m_log << TestLog::EndSection;
			}

			glBindFramebuffer		(GL_FRAMEBUFFER, 0);
			glDeleteRenderbuffers	(2, rbo);
			glDeleteFramebuffers	(2, fbo);
		});
	ES3F_ADD_API_CASE(framebuffer_texture_layer, "Invalid glFramebufferTextureLayer() usage",
		{
			deUint32					fbo;
			deUint32					tex3D;
			deUint32					tex2DArray;
			deUint32					tex2D;

			glGenFramebuffers			(1, &fbo);
			glGenTextures				(1, &tex3D);
			glGenTextures				(1, &tex2DArray);
			glGenTextures				(1, &tex2D);
			glBindFramebuffer			(GL_FRAMEBUFFER, fbo);

			glBindTexture				(GL_TEXTURE_3D, tex3D);
			glTexImage3D				(GL_TEXTURE_3D, 0, GL_RGBA, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
			glBindTexture				(GL_TEXTURE_2D_ARRAY, tex2DArray);
			glTexImage3D				(GL_TEXTURE_2D_ARRAY, 0, GL_RGBA, 4, 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
			glBindTexture				(GL_TEXTURE_2D, tex2D);
			glTexImage2D				(GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);

			expectError					(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not one of the accepted tokens.");
			glFramebufferTextureLayer	(-1, GL_COLOR_ATTACHMENT0, tex3D, 0, 1);
			expectError					(GL_INVALID_ENUM);
			glFramebufferTextureLayer	(GL_RENDERBUFFER, GL_COLOR_ATTACHMENT0, tex3D, 0, 1);
			expectError					(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if attachment is not one of the accepted tokens.");
			glFramebufferTextureLayer	(GL_FRAMEBUFFER, -1, tex3D, 0, 1);
			expectError					(GL_INVALID_ENUM);
			glFramebufferTextureLayer	(GL_FRAMEBUFFER, GL_BACK, tex3D, 0, 1);
			expectError					(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if texture is non-zero and not the name of a 3D texture or 2D array texture.");
			glFramebufferTextureLayer	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, -1, 0, 0);
			expectError					(GL_INVALID_OPERATION);
			glFramebufferTextureLayer	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, tex2D, 0, 0);
			expectError					(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if texture is not zero and layer is negative.");
			glFramebufferTextureLayer	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, tex3D, 0, -1);
			expectError					(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if texture is not zero and layer is greater than GL_MAX_3D_TEXTURE_SIZE-1 for a 3D texture.");
			int							max3DTexSize;
			glGetIntegerv				(GL_MAX_3D_TEXTURE_SIZE, &max3DTexSize);
			glFramebufferTextureLayer	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, tex3D, 0, max3DTexSize);
			expectError					(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if texture is not zero and layer is greater than GL_MAX_ARRAY_TEXTURE_LAYERS-1 for a 2D array texture.");
			int							maxArrayTexLayers;
			glGetIntegerv				(GL_MAX_ARRAY_TEXTURE_LAYERS, &maxArrayTexLayers);
			glFramebufferTextureLayer	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, tex2DArray, 0, maxArrayTexLayers);
			expectError					(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if zero is bound to target.");
			glBindFramebuffer			(GL_FRAMEBUFFER, 0);
			glFramebufferTextureLayer	(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, tex3D, 0, 1);
			expectError					(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			glDeleteTextures		(1, &tex3D);
			glDeleteTextures		(1, &tex2DArray);
			glDeleteTextures		(1, &tex2D);
			glDeleteFramebuffers	(1, &fbo);
		});
	ES3F_ADD_API_CASE(invalidate_framebuffer, "Invalid glInvalidateFramebuffer() usage",
		{
			deUint32					fbo;
			deUint32					texture;
			deUint32					attachments[2];
			int							maxColorAttachments;
			glGetIntegerv				(GL_MAX_COLOR_ATTACHMENTS, &maxColorAttachments);
			attachments[0]				= GL_COLOR_ATTACHMENT0;
			attachments[1]				= GL_COLOR_ATTACHMENT0 + maxColorAttachments;

			glGenFramebuffers			(1, &fbo);
			glGenTextures				(1, &texture);
			glBindFramebuffer			(GL_FRAMEBUFFER, fbo);
			glBindTexture				(GL_TEXTURE_2D, texture);
			glTexImage2D				(GL_TEXTURE_2D, 0, GL_RGBA, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
			glFramebufferTexture2D		(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);
			glCheckFramebufferStatus	(GL_FRAMEBUFFER);
			expectError					(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not GL_FRAMEBUFFER, GL_READ_FRAMEBUFFER or GL_DRAW_FRAMEBUFFER.");
			glInvalidateFramebuffer		(-1, 1, &attachments[0]);
			expectError					(GL_INVALID_ENUM);
			glInvalidateFramebuffer		(GL_BACK, 1, &attachments[0]);
			expectError					(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if attachments contains GL_COLOR_ATTACHMENTm and m is greater than or equal to the value of GL_MAX_COLOR_ATTACHMENTS.");
			glInvalidateFramebuffer		(GL_FRAMEBUFFER, 1, &attachments[1]);
			expectError					(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			glDeleteTextures		(1, &texture);
			glDeleteFramebuffers	(1, &fbo);
		});
	ES3F_ADD_API_CASE(invalidate_sub_framebuffer, "Invalid glInvalidateSubFramebuffer() usage",
		{
			deUint32					fbo;
			deUint32					texture;
			deUint32					attachments[2];
			int							maxColorAttachments;
			glGetIntegerv				(GL_MAX_COLOR_ATTACHMENTS, &maxColorAttachments);
			attachments[0]				= GL_COLOR_ATTACHMENT0;
			attachments[1]				= GL_COLOR_ATTACHMENT0 + maxColorAttachments;

			glGenFramebuffers			(1, &fbo);
			glGenTextures				(1, &texture);
			glBindFramebuffer			(GL_FRAMEBUFFER, fbo);
			glBindTexture				(GL_TEXTURE_2D, texture);
			glTexImage2D				(GL_TEXTURE_2D, 0, GL_RGBA, 32, 32, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
			glFramebufferTexture2D		(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture, 0);
			glCheckFramebufferStatus	(GL_FRAMEBUFFER);
			expectError					(GL_NO_ERROR);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not GL_FRAMEBUFFER, GL_READ_FRAMEBUFFER or GL_DRAW_FRAMEBUFFER.");
			glInvalidateSubFramebuffer	(-1, 1, &attachments[0], 0, 0, 16, 16);
			expectError					(GL_INVALID_ENUM);
			glInvalidateSubFramebuffer	(GL_BACK, 1, &attachments[0], 0, 0, 16, 16);
			expectError					(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if attachments contains GL_COLOR_ATTACHMENTm and m is greater than or equal to the value of GL_MAX_COLOR_ATTACHMENTS.");
			glInvalidateSubFramebuffer	(GL_FRAMEBUFFER, 1, &attachments[1], 0, 0, 16, 16);
			expectError					(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			glDeleteTextures		(1, &texture);
			glDeleteFramebuffers	(1, &fbo);
		});
	ES3F_ADD_API_CASE(renderbuffer_storage_multisample, "Invalid glRenderbufferStorageMultisample() usage",
		{
			deUint32							rbo;
			int									maxSamplesSupportedRGBA4 = -1;

			glGetInternalformativ				(GL_RENDERBUFFER, GL_RGBA4, GL_SAMPLES, 1, &maxSamplesSupportedRGBA4);
			glGenRenderbuffers					(1, &rbo);
			glBindRenderbuffer					(GL_RENDERBUFFER, rbo);

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if target is not GL_RENDERBUFFER.");
			glRenderbufferStorageMultisample	(-1, 2, GL_RGBA4, 1, 1);
			expectError							(GL_INVALID_ENUM);
			glRenderbufferStorageMultisample	(GL_FRAMEBUFFER, 2, GL_RGBA4, 1, 1);
			expectError							(GL_INVALID_ENUM);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_OPERATION is generated if samples is greater than the maximum number of samples supported for internalformat.");
			glRenderbufferStorageMultisample	(GL_RENDERBUFFER, maxSamplesSupportedRGBA4+1, GL_RGBA4, 1, 1);
			expectError							(GL_INVALID_OPERATION);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_ENUM is generated if internalformat is not a color-renderable, depth-renderable, or stencil-renderable format.");
			glRenderbufferStorageMultisample	(GL_RENDERBUFFER, 2, -1, 1, 1);
			expectError							(GL_INVALID_ENUM);

			if (!m_context.getContextInfo().isExtensionSupported("GL_EXT_color_buffer_half_float")) // GL_EXT_color_buffer_half_float disables error
			{
				glRenderbufferStorageMultisample	(GL_RENDERBUFFER, 2, GL_RGB16F, 1, 1);
				expectError							(GL_INVALID_ENUM);
			}

			if (!m_context.getContextInfo().isExtensionSupported("GL_EXT_render_snorm")) // GL_EXT_render_snorm disables error
			{
				glRenderbufferStorageMultisample	(GL_RENDERBUFFER, 2, GL_RGBA8_SNORM, 1, 1);
				expectError							(GL_INVALID_ENUM);
			}

			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if width or height is less than zero.");
			glRenderbufferStorageMultisample	(GL_RENDERBUFFER, 2, GL_RGBA4, -1, 1);
			expectError							(GL_INVALID_VALUE);
			glRenderbufferStorageMultisample	(GL_RENDERBUFFER, 2, GL_RGBA4, 1, -1);
			expectError							(GL_INVALID_VALUE);
			glRenderbufferStorageMultisample	(GL_RENDERBUFFER, 2, GL_RGBA4, -1, -1);
			expectError							(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			m_log << TestLog::Section("", "GL_INVALID_VALUE is generated if width or height is greater than GL_MAX_RENDERBUFFER_SIZE.");
			GLint maxSize;
			glGetIntegerv						(GL_MAX_RENDERBUFFER_SIZE, &maxSize);
			glRenderbufferStorageMultisample	(GL_RENDERBUFFER, 4, GL_RGBA4, 1, maxSize+1);
			expectError							(GL_INVALID_VALUE);
			glRenderbufferStorageMultisample	(GL_RENDERBUFFER, 4, GL_RGBA4, maxSize+1, 1);
			expectError							(GL_INVALID_VALUE);
			glRenderbufferStorageMultisample	(GL_RENDERBUFFER, 4, GL_RGBA4, maxSize+1, maxSize+1);
			expectError							(GL_INVALID_VALUE);
			m_log << TestLog::EndSection;

			glDeleteRenderbuffers(1, &rbo);
		});
}

} // Functional
} // gles3
} // deqp