/*-------------------------------------------------------------------------
 * 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 Indexed State Query tests.
 *//*--------------------------------------------------------------------*/

#include "es3fIndexedStateQueryTests.hpp"
#include "es3fApiCase.hpp"
#include "glsStateQueryUtil.hpp"
#include "tcuRenderTarget.hpp"
#include "tcuTestLog.hpp"
#include "glwEnums.hpp"
#include "gluRenderContext.hpp"
#include "gluCallLogWrapper.hpp"
#include "gluContextInfo.hpp"
#include "deRandom.hpp"

namespace deqp
{
namespace gles3
{
namespace Functional
{
namespace
{

using namespace glw; // GLint and other GL types
using namespace gls::StateQueryUtil;

void checkIntEquals (tcu::TestContext& testCtx, GLint got, GLint expected)
{
	using tcu::TestLog;

	if (got != expected)
	{
		testCtx.getLog() << TestLog::Message << "// ERROR: Expected " << expected << "; got " << got << TestLog::EndMessage;
		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid value");
	}
}

void checkIntEquals (tcu::TestContext& testCtx, GLint64 got, GLint64 expected)
{
	using tcu::TestLog;

	if (got != expected)
	{
		testCtx.getLog() << TestLog::Message << "// ERROR: Expected " << expected << "; got " << got << TestLog::EndMessage;
		if (testCtx.getTestResult() == QP_TEST_RESULT_PASS)
			testCtx.setTestResult(QP_TEST_RESULT_FAIL, "got invalid value");
	}
}

class TransformFeedbackCase : public ApiCase
{
public:
	TransformFeedbackCase (Context& context, const char* name, const char* description)
		: ApiCase(context, name, description)
	{
	}

	virtual void testTransformFeedback (void) = DE_NULL;

	void test (void)
	{
		static const char* transformFeedbackTestVertSource	=	"#version 300 es\n"
																"out highp vec4 anotherOutput;\n"
																"void main (void)\n"
																"{\n"
																"	gl_Position = vec4(0.0);\n"
																"	anotherOutput = vec4(0.0);\n"
																"}\n\0";
		static const char* transformFeedbackTestFragSource	=	"#version 300 es\n"
																"layout(location = 0) out mediump vec4 fragColor;"
																"void main (void)\n"
																"{\n"
																"	fragColor = vec4(0.0);\n"
																"}\n\0";

		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);

		glShaderSource(shaderVert, 1, &transformFeedbackTestVertSource, DE_NULL);
		glShaderSource(shaderFrag, 1, &transformFeedbackTestFragSource, DE_NULL);

		glCompileShader(shaderVert);
		glCompileShader(shaderFrag);
		expectError(GL_NO_ERROR);

		GLuint shaderProg = glCreateProgram();
		glAttachShader(shaderProg, shaderVert);
		glAttachShader(shaderProg, shaderFrag);

		const char* transformFeedbackOutputs[] =
		{
			"gl_Position",
			"anotherOutput"
		};

		glTransformFeedbackVaryings(shaderProg, 2, transformFeedbackOutputs, GL_INTERLEAVED_ATTRIBS);
		glLinkProgram(shaderProg);
		expectError(GL_NO_ERROR);

		glGenTransformFeedbacks(2, transformFeedbacks);
		// Also store the default transform feedback in the array.
		transformFeedbacks[2] = 0;
		glBindTransformFeedback(GL_TRANSFORM_FEEDBACK, transformFeedbacks[0]);
		expectError(GL_NO_ERROR);

		testTransformFeedback();

		// cleanup

		glBindTransformFeedback(GL_TRANSFORM_FEEDBACK, 0);

		glDeleteTransformFeedbacks(2, transformFeedbacks);
		glDeleteShader(shaderVert);
		glDeleteShader(shaderFrag);
		glDeleteProgram(shaderProg);
		expectError(GL_NO_ERROR);
	}
protected:
	GLuint transformFeedbacks[3];
};

class TransformFeedbackBufferBindingCase : public TransformFeedbackCase
{
public:
	TransformFeedbackBufferBindingCase (Context& context, const char* name, const char* description)
		: TransformFeedbackCase(context, name, description)
	{
	}

	void testTransformFeedback (void)
	{
		const int feedbackPositionIndex = 0;
		const int feedbackOutputIndex = 1;
		const int feedbackIndex[2] = {feedbackPositionIndex, feedbackOutputIndex};

		// bind bffers

		GLuint feedbackBuffers[2];
		glGenBuffers(2, feedbackBuffers);
		expectError(GL_NO_ERROR);

		for (int ndx = 0; ndx < 2; ++ndx)
		{
			glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, feedbackBuffers[ndx]);
			glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER, 16, NULL, GL_DYNAMIC_READ);
			glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, feedbackIndex[ndx], feedbackBuffers[ndx]);
			expectError(GL_NO_ERROR);
		}

		// test TRANSFORM_FEEDBACK_BUFFER_BINDING

		for (int ndx = 0; ndx < 2; ++ndx)
		{
			StateQueryMemoryWriteGuard<GLint> boundBuffer;
			glGetIntegeri_v(GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, feedbackIndex[ndx], &boundBuffer);
			boundBuffer.verifyValidity(m_testCtx);
			checkIntEquals(m_testCtx, boundBuffer, feedbackBuffers[ndx]);
		}


		// cleanup

		glDeleteBuffers(2, feedbackBuffers);
	}
};

class TransformFeedbackBufferBufferCase : public TransformFeedbackCase
{
public:
	TransformFeedbackBufferBufferCase (Context& context, const char* name, const char* description)
		: TransformFeedbackCase(context, name, description)
	{
	}

	void testTransformFeedback (void)
	{
		const int feedbackPositionIndex = 0;
		const int feedbackOutputIndex = 1;

		const int rangeBufferOffset = 4;
		const int rangeBufferSize = 8;

		// bind buffers

		GLuint feedbackBuffers[2];
		glGenBuffers(2, feedbackBuffers);
		expectError(GL_NO_ERROR);

		glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, feedbackBuffers[0]);
		glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER, 16, NULL, GL_DYNAMIC_READ);
		glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, feedbackPositionIndex, feedbackBuffers[0]);
		expectError(GL_NO_ERROR);

		glBindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, feedbackBuffers[1]);
		glBufferData(GL_TRANSFORM_FEEDBACK_BUFFER, 16, NULL, GL_DYNAMIC_READ);
		glBindBufferRange(GL_TRANSFORM_FEEDBACK_BUFFER, feedbackOutputIndex, feedbackBuffers[1], rangeBufferOffset, rangeBufferSize);
		expectError(GL_NO_ERROR);

		// test TRANSFORM_FEEDBACK_BUFFER_START and TRANSFORM_FEEDBACK_BUFFER_SIZE

		const struct BufferRequirements
		{
			GLint	index;
			GLenum	pname;
			GLint64 value;
		} requirements[] =
		{
			{ feedbackPositionIndex,	GL_TRANSFORM_FEEDBACK_BUFFER_START, 0					},
			{ feedbackPositionIndex,	GL_TRANSFORM_FEEDBACK_BUFFER_SIZE,	0					},
			{ feedbackOutputIndex,		GL_TRANSFORM_FEEDBACK_BUFFER_START, rangeBufferOffset	},
			{ feedbackOutputIndex,		GL_TRANSFORM_FEEDBACK_BUFFER_SIZE,	rangeBufferSize		}
		};

		for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(requirements); ++ndx)
		{
			StateQueryMemoryWriteGuard<GLint64> state;
			glGetInteger64i_v(requirements[ndx].pname, requirements[ndx].index, &state);

			if (state.verifyValidity(m_testCtx))
				checkIntEquals(m_testCtx, state, requirements[ndx].value);
		}

		// cleanup

		glDeleteBuffers(2, feedbackBuffers);
	}
};

class TransformFeedbackSwitchingBufferCase : public TransformFeedbackCase
{
public:
	TransformFeedbackSwitchingBufferCase (Context& context, const char* name, const char* description)
		: TransformFeedbackCase(context, name, description)
	{
	}

	void testTransformFeedback (void)
	{
		GLuint feedbackBuffers[3];
		glGenBuffers(3, feedbackBuffers);
		expectError(GL_NO_ERROR);

		for (int i = 0; i < 3; ++i)
		{
			glBindTransformFeedback(GL_TRANSFORM_FEEDBACK, transformFeedbacks[i]);
			expectError(GL_NO_ERROR);
			GLint value;
			glGetIntegeri_v(GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, 0, &value);
			expectError(GL_NO_ERROR);
			checkIntEquals(m_testCtx, value, 0);
			glBindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0, feedbackBuffers[i]);
			expectError(GL_NO_ERROR);
			// glBindBufferBase should also set the generic binding point.
			glGetIntegerv(GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, &value);
			expectError(GL_NO_ERROR);
			checkIntEquals(m_testCtx, value, feedbackBuffers[i]);
		}

		for (int i = 0; i < 3; ++i)
		{
			// glBindTransformFeedback should change the indexed binding points, but
			// not the generic one.
			glBindTransformFeedback(GL_TRANSFORM_FEEDBACK, transformFeedbacks[i]);
			expectError(GL_NO_ERROR);
			GLint value;
			glGetIntegeri_v(GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, 0, &value);
			expectError(GL_NO_ERROR);
			checkIntEquals(m_testCtx, value, feedbackBuffers[i]);
			glGetIntegerv(GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, &value);
			expectError(GL_NO_ERROR);
			// Should be unchanged.
			checkIntEquals(m_testCtx, value, feedbackBuffers[2]);
		}

		glBindTransformFeedback(GL_TRANSFORM_FEEDBACK, transformFeedbacks[0]);
		expectError(GL_NO_ERROR);
		glDeleteBuffers(3, feedbackBuffers);
		expectError(GL_NO_ERROR);

		// After deleting buffers the bound state should be changed but unbound
		// state should be unchanged.

		GLint value;
		glGetIntegeri_v(GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, 0, &value);
		expectError(GL_NO_ERROR);
		checkIntEquals(m_testCtx, value, 0);
		glGetIntegerv(GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, &value);
		expectError(GL_NO_ERROR);
		checkIntEquals(m_testCtx, value, 0);

		for (int i = 1; i < 3; ++i)
		{
			glBindTransformFeedback(GL_TRANSFORM_FEEDBACK, transformFeedbacks[i]);
			expectError(GL_NO_ERROR);
			glGetIntegeri_v(GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, 0, &value);
			expectError(GL_NO_ERROR);
			checkIntEquals(m_testCtx, value, feedbackBuffers[i]);
			glGetIntegerv(GL_TRANSFORM_FEEDBACK_BUFFER_BINDING, &value);
			expectError(GL_NO_ERROR);
			checkIntEquals(m_testCtx, value, 0);
		}
	}
};

class UniformBufferCase : public ApiCase
{
public:
	UniformBufferCase (Context& context, const char* name, const char* description)
		: ApiCase	(context, name, description)
		, m_program	(0)
	{
	}

	virtual void testUniformBuffers (void) = DE_NULL;

	void test (void)
	{
		static const char* testVertSource	=	"#version 300 es\n"
												"uniform highp vec4 input1;\n"
												"uniform highp vec4 input2;\n"
												"void main (void)\n"
												"{\n"
												"	gl_Position = input1 + input2;\n"
												"}\n\0";
		static const char* testFragSource	=	"#version 300 es\n"
												"layout(location = 0) out mediump vec4 fragColor;"
												"void main (void)\n"
												"{\n"
												"	fragColor = vec4(0.0);\n"
												"}\n\0";

		GLuint shaderVert = glCreateShader(GL_VERTEX_SHADER);
		GLuint shaderFrag = glCreateShader(GL_FRAGMENT_SHADER);

		glShaderSource(shaderVert, 1, &testVertSource, DE_NULL);
		glShaderSource(shaderFrag, 1, &testFragSource, DE_NULL);

		glCompileShader(shaderVert);
		glCompileShader(shaderFrag);
		expectError(GL_NO_ERROR);

		m_program = glCreateProgram();
		glAttachShader(m_program, shaderVert);
		glAttachShader(m_program, shaderFrag);
		glLinkProgram(m_program);
		glUseProgram(m_program);
		expectError(GL_NO_ERROR);

		testUniformBuffers();

		glUseProgram(0);
		glDeleteShader(shaderVert);
		glDeleteShader(shaderFrag);
		glDeleteProgram(m_program);
		expectError(GL_NO_ERROR);
	}

protected:
	GLuint	m_program;
};

class UniformBufferBindingCase : public UniformBufferCase
{
public:
	UniformBufferBindingCase (Context& context, const char* name, const char* description)
		: UniformBufferCase(context, name, description)
	{
	}

	void testUniformBuffers (void)
	{
		const char* uniformNames[] =
		{
			"input1",
			"input2"
		};
		GLuint uniformIndices[2] = {0};
		glGetUniformIndices(m_program, 2, uniformNames, uniformIndices);

		GLuint buffers[2];
		glGenBuffers(2, buffers);

		for (int ndx = 0; ndx < 2; ++ndx)
		{
			glBindBuffer(GL_UNIFORM_BUFFER, buffers[ndx]);
			glBufferData(GL_UNIFORM_BUFFER, 32, DE_NULL, GL_DYNAMIC_DRAW);
			glBindBufferBase(GL_UNIFORM_BUFFER, uniformIndices[ndx], buffers[ndx]);
			expectError(GL_NO_ERROR);
		}

		for (int ndx = 0; ndx < 2; ++ndx)
		{
			StateQueryMemoryWriteGuard<GLint> boundBuffer;
			glGetIntegeri_v(GL_UNIFORM_BUFFER_BINDING, uniformIndices[ndx], &boundBuffer);

			if (boundBuffer.verifyValidity(m_testCtx))
				checkIntEquals(m_testCtx, boundBuffer, buffers[ndx]);
			expectError(GL_NO_ERROR);
		}

		glDeleteBuffers(2, buffers);
	}
};

class UniformBufferBufferCase : public UniformBufferCase
{
public:
	UniformBufferBufferCase (Context& context, const char* name, const char* description)
		: UniformBufferCase(context, name, description)
	{
	}

	void testUniformBuffers (void)
	{
		const char* uniformNames[] =
		{
			"input1",
			"input2"
		};
		GLuint uniformIndices[2] = {0};
		glGetUniformIndices(m_program, 2, uniformNames, uniformIndices);

		const GLint alignment = GetAlignment();
		if (alignment == -1) // cannot continue without this
			return;

		m_testCtx.getLog() << tcu::TestLog::Message << "Alignment is " << alignment << tcu::TestLog::EndMessage;

		int rangeBufferOffset		= alignment;
		int rangeBufferSize			= alignment * 2;
		int rangeBufferTotalSize	= rangeBufferOffset + rangeBufferSize + 8; // + 8 has no special meaning, just to make it != with the size of the range

		GLuint buffers[2];
		glGenBuffers(2, buffers);

		glBindBuffer(GL_UNIFORM_BUFFER, buffers[0]);
		glBufferData(GL_UNIFORM_BUFFER, 32, DE_NULL, GL_DYNAMIC_DRAW);
		glBindBufferBase(GL_UNIFORM_BUFFER, uniformIndices[0], buffers[0]);
		expectError(GL_NO_ERROR);

		glBindBuffer(GL_UNIFORM_BUFFER, buffers[1]);
		glBufferData(GL_UNIFORM_BUFFER, rangeBufferTotalSize, DE_NULL, GL_DYNAMIC_DRAW);
		glBindBufferRange(GL_UNIFORM_BUFFER, uniformIndices[1], buffers[1], rangeBufferOffset, rangeBufferSize);
		expectError(GL_NO_ERROR);

		// test UNIFORM_BUFFER_START and UNIFORM_BUFFER_SIZE

		const struct BufferRequirements
		{
			GLuint	index;
			GLenum	pname;
			GLint64 value;
		} requirements[] =
		{
			{ uniformIndices[0], GL_UNIFORM_BUFFER_START,	0					},
			{ uniformIndices[0], GL_UNIFORM_BUFFER_SIZE,	0					},
			{ uniformIndices[1], GL_UNIFORM_BUFFER_START,	rangeBufferOffset	},
			{ uniformIndices[1], GL_UNIFORM_BUFFER_SIZE,	rangeBufferSize		}
		};

		for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(requirements); ++ndx)
		{
			StateQueryMemoryWriteGuard<GLint64> state;
			glGetInteger64i_v(requirements[ndx].pname, requirements[ndx].index, &state);

			if (state.verifyValidity(m_testCtx))
				checkIntEquals(m_testCtx, state, requirements[ndx].value);
			expectError(GL_NO_ERROR);
		}

		glDeleteBuffers(2, buffers);
	}

	int GetAlignment()
	{
		StateQueryMemoryWriteGuard<GLint> state;
		glGetIntegerv(GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT, &state);

		if (!state.verifyValidity(m_testCtx))
			return -1;

		if (state <= 256)
			return state;

		m_testCtx.getLog() << tcu::TestLog::Message << "// ERROR: UNIFORM_BUFFER_OFFSET_ALIGNMENT has a maximum value of 256." << tcu::TestLog::EndMessage;
		m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "invalid UNIFORM_BUFFER_OFFSET_ALIGNMENT value");

		return -1;
	}
};

const char* getVerifierSuffix (QueryType type)
{
	switch (type)
	{
		case QUERY_INDEXED_INTEGER:			return "getintegeri_v";
		case QUERY_INDEXED_INTEGER64:		return "getinteger64i_v";
		case QUERY_INDEXED_INTEGER_VEC4:	return "getintegeri_v";
		case QUERY_INDEXED_INTEGER64_VEC4:	return "getinteger64i_v";
		case QUERY_INDEXED_ISENABLED:		return "isenabledi";
		default:
			DE_ASSERT(DE_FALSE);
			return DE_NULL;
	}
}

void isExtensionSupported (Context& context, std::string extensionName)
{
	if (contextSupports(context.getRenderContext().getType(), glu::ApiType::core(4, 5)))
		return;

	if (extensionName == "GL_EXT_draw_buffers_indexed" || extensionName == "GL_KHR_blend_equation_advanced")
	{
		if (!contextSupports(context.getRenderContext().getType(), glu::ApiType::es(3, 2)) && !context.getContextInfo().isExtensionSupported(extensionName.c_str()))
			TCU_THROW(NotSupportedError, (std::string("Extension ") + extensionName + std::string(" not supported.")).c_str());
	}
	else if (!context.getContextInfo().isExtensionSupported(extensionName.c_str()))
		TCU_THROW(NotSupportedError, (std::string("Extension ") + extensionName + std::string(" not supported.")).c_str());
}

class EnableBlendCase : public TestCase
{
public:
	EnableBlendCase	(Context& context, const char* name, const char* desc, QueryType verifierType);

	void				init			(void);
private:
	IterateResult		iterate			(void);

	const QueryType		m_verifierType;
};

EnableBlendCase::EnableBlendCase (Context& context, const char* name, const char* desc, QueryType verifierType)
		: TestCase			(context, name, desc)
		, m_verifierType	(verifierType)
{
}

void EnableBlendCase::init (void)
{
	isExtensionSupported(m_context, "GL_EXT_draw_buffers_indexed");
}

EnableBlendCase::IterateResult EnableBlendCase::iterate (void)
{
	glu::CallLogWrapper		gl				(m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
	tcu::ResultCollector	result			(m_testCtx.getLog(), " // ERROR: ");
	deInt32					maxDrawBuffers = 0;

	gl.enableLogging(true);

	gl.glGetIntegerv(GL_MAX_DRAW_BUFFERS, &maxDrawBuffers);
	GLU_EXPECT_NO_ERROR(gl.glGetError(), "glGetIntegerv");

	{
		const tcu::ScopedLogSection section(m_testCtx.getLog(), "Initial", "Initial value");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedBoolean(result, gl, GL_BLEND, ndx, false, m_verifierType);
	}
	{
		const tcu::ScopedLogSection	superSection	(m_testCtx.getLog(), "AfterSettingCommon", "After setting common");

		gl.glEnable(GL_BLEND);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedBoolean(result, gl, GL_BLEND, ndx, true, m_verifierType);

	}
	{
		const tcu::ScopedLogSection	superSection	(m_testCtx.getLog(), "AfterSettingIndexed", "After setting indexed");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
		{
			if (ndx % 2 == 0)
				gl.glEnablei(GL_BLEND, ndx);
			else
				gl.glDisablei(GL_BLEND, ndx);
		}

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedBoolean(result, gl, GL_BLEND, ndx, (ndx % 2 == 0), m_verifierType);
	}
	{
		const tcu::ScopedLogSection	superSection	(m_testCtx.getLog(), "AfterResettingIndexedWithCommon", "After resetting indexed with common");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
		{
			if (ndx % 2 == 0)
				gl.glEnablei(GL_BLEND, ndx);
			else
				gl.glDisablei(GL_BLEND, ndx);
		}

		gl.glEnable(GL_BLEND);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedBoolean(result, gl, GL_BLEND, ndx, true, m_verifierType);
	}

	result.setTestContextResult(m_testCtx);
	return STOP;
}

class ColorMaskCase : public TestCase
{
public:
	ColorMaskCase	(Context& context, const char* name, const char* desc, QueryType verifierType);

	void				init			(void);
private:
	IterateResult		iterate			(void);

	const QueryType		m_verifierType;
};

ColorMaskCase::ColorMaskCase (Context& context, const char* name, const char* desc, QueryType verifierType)
		: TestCase			(context, name, desc)
		, m_verifierType	(verifierType)
{
}

void ColorMaskCase::init (void)
{
	isExtensionSupported(m_context, "GL_EXT_draw_buffers_indexed");
}

ColorMaskCase::IterateResult ColorMaskCase::iterate (void)
{
	glu::CallLogWrapper		gl				(m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
	tcu::ResultCollector	result			(m_testCtx.getLog(), " // ERROR: ");
	deInt32					maxDrawBuffers = 0;

	gl.enableLogging(true);

	gl.glGetIntegerv(GL_MAX_DRAW_BUFFERS, &maxDrawBuffers);
	GLU_EXPECT_NO_ERROR(gl.glGetError(), "glGetIntegerv");

	{
		const tcu::ScopedLogSection section(m_testCtx.getLog(), "Initial", "Initial value");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedBooleanVec4(result, gl, GL_COLOR_WRITEMASK, ndx, tcu::BVec4(true), m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterSettingCommon", "After setting common");

		gl.glColorMask(GL_FALSE, GL_TRUE, GL_TRUE, GL_FALSE);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedBooleanVec4(result, gl, GL_COLOR_WRITEMASK, ndx, tcu::BVec4(false, true, true, false), m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterSettingIndexed", "After setting indexed");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			gl.glColorMaski(ndx, (ndx % 2 == 0 ? GL_TRUE : GL_FALSE), (ndx % 2 == 1 ? GL_TRUE : GL_FALSE), (ndx % 2 == 0 ? GL_TRUE : GL_FALSE), (ndx % 2 == 1 ? GL_TRUE : GL_FALSE));

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedBooleanVec4(result, gl, GL_COLOR_WRITEMASK, ndx, (ndx % 2 == 0 ? tcu::BVec4(true, false, true, false) : tcu::BVec4(false, true, false, true)), m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterResettingIndexedWithCommon", "After resetting indexed with common");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			gl.glColorMaski(ndx, (ndx % 2 == 0 ? GL_TRUE : GL_FALSE), (ndx % 2 == 1 ? GL_TRUE : GL_FALSE), (ndx % 2 == 0 ? GL_TRUE : GL_FALSE), (ndx % 2 == 1 ? GL_TRUE : GL_FALSE));

		gl.glColorMask(GL_FALSE, GL_TRUE, GL_TRUE, GL_FALSE);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedBooleanVec4(result, gl, GL_COLOR_WRITEMASK, ndx, tcu::BVec4(false, true, true, false), m_verifierType);
	}

	result.setTestContextResult(m_testCtx);
	return STOP;
}

class BlendFuncCase : public TestCase
{
public:
	BlendFuncCase	(Context& context, const char* name, const char* desc, QueryType verifierType);

	void				init			(void);
private:
	IterateResult		iterate			(void);

	const QueryType		m_verifierType;
};

BlendFuncCase::BlendFuncCase (Context& context, const char* name, const char* desc, QueryType verifierType)
		: TestCase			(context, name, desc)
		, m_verifierType	(verifierType)
{
}

void BlendFuncCase::init (void)
{
	isExtensionSupported(m_context, "GL_EXT_draw_buffers_indexed");
}

BlendFuncCase::IterateResult BlendFuncCase::iterate (void)
{
	const deUint32 blendFuncs[] =
			{
					GL_ZERO,
					GL_ONE,
					GL_SRC_COLOR,
					GL_ONE_MINUS_SRC_COLOR,
					GL_DST_COLOR,
					GL_ONE_MINUS_DST_COLOR,
					GL_SRC_ALPHA,
					GL_ONE_MINUS_SRC_ALPHA,
					GL_DST_ALPHA,
					GL_ONE_MINUS_DST_ALPHA,
					GL_CONSTANT_COLOR,
					GL_ONE_MINUS_CONSTANT_COLOR,
					GL_CONSTANT_ALPHA,
					GL_ONE_MINUS_CONSTANT_ALPHA,
					GL_SRC_ALPHA_SATURATE
			};

	glu::CallLogWrapper		gl				(m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
	tcu::ResultCollector	result			(m_testCtx.getLog(), " // ERROR: ");
	deInt32					maxDrawBuffers = 0;

	gl.enableLogging(true);

	gl.glGetIntegerv(GL_MAX_DRAW_BUFFERS, &maxDrawBuffers);
	GLU_EXPECT_NO_ERROR(gl.glGetError(), "glGetIntegerv");

	{
		const tcu::ScopedLogSection section(m_testCtx.getLog(), "Initial", "Initial value");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_RGB, ndx, GL_ONE, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_RGB, ndx, GL_ZERO, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_ALPHA, ndx, GL_ONE, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_ALPHA, ndx, GL_ZERO, m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterSettingCommon", "After setting common");

		gl.glBlendFunc(GL_SRC_ALPHA, GL_DST_ALPHA);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_RGB, ndx, GL_SRC_ALPHA, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_RGB, ndx, GL_DST_ALPHA, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_ALPHA, ndx, GL_SRC_ALPHA, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_ALPHA, ndx, GL_DST_ALPHA, m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterSettingCommonSeparate", "After setting common separate");

		gl.glBlendFuncSeparate(GL_SRC_COLOR, GL_ONE_MINUS_SRC_ALPHA, GL_DST_COLOR, GL_ONE_MINUS_DST_ALPHA);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_RGB, ndx, GL_SRC_COLOR, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_RGB, ndx, GL_ONE_MINUS_SRC_ALPHA, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_ALPHA, ndx, GL_DST_COLOR, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_ALPHA, ndx, GL_ONE_MINUS_DST_ALPHA, m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterSettingIndexed", "After setting indexed");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			gl.glBlendFunci(ndx, blendFuncs[ndx % DE_LENGTH_OF_ARRAY(blendFuncs)], blendFuncs[(ndx + 1) % DE_LENGTH_OF_ARRAY(blendFuncs)]);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_RGB, ndx, blendFuncs[ndx % DE_LENGTH_OF_ARRAY(blendFuncs)], m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_RGB, ndx, blendFuncs[(ndx + 1) % DE_LENGTH_OF_ARRAY(blendFuncs)], m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_ALPHA, ndx, blendFuncs[ndx % DE_LENGTH_OF_ARRAY(blendFuncs)], m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_ALPHA, ndx, blendFuncs[(ndx + 1) % DE_LENGTH_OF_ARRAY(blendFuncs)], m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterSettingIndexedSeparate", "After setting indexed separate");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			gl.glBlendFuncSeparatei(ndx, blendFuncs[(ndx + 3) % DE_LENGTH_OF_ARRAY(blendFuncs)],
									blendFuncs[(ndx + 2) % DE_LENGTH_OF_ARRAY(blendFuncs)],
									blendFuncs[(ndx + 1) % DE_LENGTH_OF_ARRAY(blendFuncs)],
									blendFuncs[(ndx + 0) % DE_LENGTH_OF_ARRAY(blendFuncs)]);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_RGB, ndx, blendFuncs[(ndx + 3) % DE_LENGTH_OF_ARRAY(blendFuncs)], m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_RGB, ndx, blendFuncs[(ndx + 2) % DE_LENGTH_OF_ARRAY(blendFuncs)], m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_ALPHA, ndx, blendFuncs[(ndx + 1) % DE_LENGTH_OF_ARRAY(blendFuncs)], m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_ALPHA, ndx, blendFuncs[(ndx + 0) % DE_LENGTH_OF_ARRAY(blendFuncs)], m_verifierType);

	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterResettingIndexedWithCommon", "After resetting indexed with common");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			gl.glBlendFunci(ndx, blendFuncs[ndx % DE_LENGTH_OF_ARRAY(blendFuncs)], blendFuncs[(ndx + 1) % DE_LENGTH_OF_ARRAY(blendFuncs)]);

		gl.glBlendFunc(GL_SRC_ALPHA, GL_DST_ALPHA);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_RGB, ndx, GL_SRC_ALPHA, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_RGB, ndx, GL_DST_ALPHA, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_ALPHA, ndx, GL_SRC_ALPHA, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_ALPHA, ndx, GL_DST_ALPHA, m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterResettingIndexedWithCommonSeparate", "After resetting indexed with common separate");

		gl.glBlendFuncSeparate(GL_SRC_COLOR, GL_ONE_MINUS_SRC_ALPHA, GL_DST_COLOR, GL_ONE_MINUS_DST_ALPHA);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			gl.glBlendFuncSeparatei(ndx, blendFuncs[(ndx + 3) % DE_LENGTH_OF_ARRAY(blendFuncs)],
									blendFuncs[(ndx + 2) % DE_LENGTH_OF_ARRAY(blendFuncs)],
									blendFuncs[(ndx + 1) % DE_LENGTH_OF_ARRAY(blendFuncs)],
									blendFuncs[(ndx + 0) % DE_LENGTH_OF_ARRAY(blendFuncs)]);

		gl.glBlendFuncSeparate(GL_SRC_COLOR, GL_ONE_MINUS_SRC_ALPHA, GL_DST_COLOR, GL_ONE_MINUS_DST_ALPHA);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_RGB, ndx, GL_SRC_COLOR, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_RGB, ndx, GL_ONE_MINUS_SRC_ALPHA, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_SRC_ALPHA, ndx, GL_DST_COLOR, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_DST_ALPHA, ndx, GL_ONE_MINUS_DST_ALPHA, m_verifierType);
	}

	result.setTestContextResult(m_testCtx);
	return STOP;
}

class BlendEquationCase : public TestCase
{
public:
	BlendEquationCase	(Context& context, const char* name, const char* desc, QueryType verifierType);

	void				init				(void);
private:
	IterateResult		iterate				(void);

	const QueryType		m_verifierType;
};

BlendEquationCase::BlendEquationCase (Context& context, const char* name, const char* desc, QueryType verifierType)
		: TestCase			(context, name, desc)
		, m_verifierType	(verifierType)
{
}

void BlendEquationCase::init (void)
{
	isExtensionSupported(m_context, "GL_EXT_draw_buffers_indexed");
}

BlendEquationCase::IterateResult BlendEquationCase::iterate (void)
{
	const deUint32 blendEquations[] =
			{
					GL_FUNC_ADD,
					GL_FUNC_SUBTRACT,
					GL_FUNC_REVERSE_SUBTRACT,
					GL_MIN,
					GL_MAX
			};

	glu::CallLogWrapper		gl				(m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
	tcu::ResultCollector	result			(m_testCtx.getLog(), " // ERROR: ");
	deInt32					maxDrawBuffers = 0;

	gl.enableLogging(true);

	gl.glGetIntegerv(GL_MAX_DRAW_BUFFERS, &maxDrawBuffers);
	GLU_EXPECT_NO_ERROR(gl.glGetError(), "glGetIntegerv");

	{
		const tcu::ScopedLogSection section(m_testCtx.getLog(), "Initial", "Initial value");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_RGB, ndx, GL_FUNC_ADD, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_ALPHA, ndx, GL_FUNC_ADD, m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterSettingCommon", "After setting common");

		gl.glBlendEquation(GL_FUNC_SUBTRACT);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_RGB, ndx, GL_FUNC_SUBTRACT, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_ALPHA, ndx, GL_FUNC_SUBTRACT, m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterSettingCommonSeparate", "After setting common separate");

		gl.glBlendEquationSeparate(GL_FUNC_REVERSE_SUBTRACT, GL_FUNC_SUBTRACT);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_RGB, ndx, GL_FUNC_REVERSE_SUBTRACT, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_ALPHA, ndx, GL_FUNC_SUBTRACT, m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterSettingIndexed", "After setting indexed");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			gl.glBlendEquationi(ndx, blendEquations[ndx % DE_LENGTH_OF_ARRAY(blendEquations)]);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_RGB, ndx, blendEquations[ndx % DE_LENGTH_OF_ARRAY(blendEquations)], m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_ALPHA, ndx, blendEquations[ndx % DE_LENGTH_OF_ARRAY(blendEquations)], m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterSettingIndexedSeparate", "After setting indexed separate");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			gl.glBlendEquationSeparatei(ndx, blendEquations[ndx % DE_LENGTH_OF_ARRAY(blendEquations)], blendEquations[(ndx + 1) % DE_LENGTH_OF_ARRAY(blendEquations)]);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_RGB, ndx, blendEquations[ndx % DE_LENGTH_OF_ARRAY(blendEquations)], m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_ALPHA, ndx, blendEquations[(ndx + 1) % DE_LENGTH_OF_ARRAY(blendEquations)], m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterResettingIndexedWithCommon", "After resetting indexed with common");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			gl.glBlendEquationi(ndx, blendEquations[ndx % DE_LENGTH_OF_ARRAY(blendEquations)]);

		gl.glBlendEquation(GL_FUNC_SUBTRACT);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_RGB, ndx, GL_FUNC_SUBTRACT, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_ALPHA, ndx, GL_FUNC_SUBTRACT, m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterResettingIndexedWithCommonSeparate", "After resetting indexed with common separate");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			gl.glBlendEquationSeparatei(ndx, blendEquations[ndx % DE_LENGTH_OF_ARRAY(blendEquations)], blendEquations[(ndx + 1) % DE_LENGTH_OF_ARRAY(blendEquations)]);

		gl.glBlendEquationSeparate(GL_FUNC_REVERSE_SUBTRACT, GL_FUNC_SUBTRACT);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_RGB, ndx, GL_FUNC_REVERSE_SUBTRACT, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_ALPHA, ndx, GL_FUNC_SUBTRACT, m_verifierType);
	}

	result.setTestContextResult(m_testCtx);
	return STOP;
}

class BlendEquationAdvancedCase : public TestCase
{
public:
	BlendEquationAdvancedCase	(Context& context, const char* name, const char* desc, QueryType verifierType);

	void				init				(void);
private:
	IterateResult		iterate				(void);

	const QueryType		m_verifierType;
};

BlendEquationAdvancedCase::BlendEquationAdvancedCase (Context& context, const char* name, const char* desc, QueryType verifierType)
		: TestCase			(context, name, desc)
		, m_verifierType	(verifierType)
{
}

void BlendEquationAdvancedCase::init (void)
{
	isExtensionSupported(m_context, "GL_EXT_draw_buffers_indexed");
	isExtensionSupported(m_context, "GL_KHR_blend_equation_advanced");
}

BlendEquationAdvancedCase::IterateResult BlendEquationAdvancedCase::iterate (void)
{
	const deUint32 blendEquations[] =
			{
					GL_FUNC_ADD,
					GL_FUNC_SUBTRACT,
					GL_FUNC_REVERSE_SUBTRACT,
					GL_MIN,
					GL_MAX
			};

	const deUint32 blendEquationAdvanced[] =
			{
					GL_MULTIPLY,
					GL_SCREEN,
					GL_OVERLAY,
					GL_DARKEN,
					GL_LIGHTEN,
					GL_COLORDODGE,
					GL_COLORBURN,
					GL_HARDLIGHT,
					GL_SOFTLIGHT,
					GL_DIFFERENCE,
					GL_EXCLUSION,
					GL_HSL_HUE,
					GL_HSL_SATURATION,
					GL_HSL_COLOR,
					GL_HSL_LUMINOSITY
			};

	glu::CallLogWrapper		gl				(m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
	tcu::ResultCollector	result			(m_testCtx.getLog(), " // ERROR: ");
	deInt32					maxDrawBuffers = 0;

	gl.enableLogging(true);

	gl.glGetIntegerv(GL_MAX_DRAW_BUFFERS, &maxDrawBuffers);
	GLU_EXPECT_NO_ERROR(gl.glGetError(), "glGetIntegerv");

	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterSettingCommon", "After setting common");

		gl.glBlendEquation(GL_SCREEN);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_RGB, ndx, GL_SCREEN, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_ALPHA, ndx, GL_SCREEN, m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterSettingIndexed", "After setting indexed");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			gl.glBlendEquationi(ndx, blendEquationAdvanced[ndx % DE_LENGTH_OF_ARRAY(blendEquationAdvanced)]);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_RGB, ndx, blendEquationAdvanced[ndx % DE_LENGTH_OF_ARRAY(blendEquationAdvanced)], m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_ALPHA, ndx, blendEquationAdvanced[ndx % DE_LENGTH_OF_ARRAY(blendEquationAdvanced)], m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterResettingIndexedWithCommon", "After resetting indexed with common");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			gl.glBlendEquationi(ndx, blendEquationAdvanced[ndx % DE_LENGTH_OF_ARRAY(blendEquationAdvanced)]);

		gl.glBlendEquation(GL_MULTIPLY);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_RGB, ndx, GL_MULTIPLY, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_ALPHA, ndx, GL_MULTIPLY, m_verifierType);
	}
	{
		const tcu::ScopedLogSection section (m_testCtx.getLog(), "AfterResettingIndexedSeparateWithCommon", "After resetting indexed separate with common");

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			gl.glBlendEquationSeparatei(ndx, blendEquations[ndx % DE_LENGTH_OF_ARRAY(blendEquations)], blendEquations[(ndx + 1) % DE_LENGTH_OF_ARRAY(blendEquations)]);

		gl.glBlendEquation(GL_LIGHTEN);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_RGB, ndx, GL_LIGHTEN, m_verifierType);

		for (int ndx = 0; ndx < maxDrawBuffers; ++ndx)
			verifyStateIndexedInteger(result, gl, GL_BLEND_EQUATION_ALPHA, ndx, GL_LIGHTEN, m_verifierType);
	}

	result.setTestContextResult(m_testCtx);
	return STOP;
}

} // anonymous

IndexedStateQueryTests::IndexedStateQueryTests (Context& context)
	: TestCaseGroup(context, "indexed", "Indexed Integer Values")
{
}

void IndexedStateQueryTests::init (void)
{
	// transform feedback
	addChild(new TransformFeedbackBufferBindingCase(m_context, "transform_feedback_buffer_binding", "TRANSFORM_FEEDBACK_BUFFER_BINDING"));
	addChild(new TransformFeedbackBufferBufferCase(m_context, "transform_feedback_buffer_start_size", "TRANSFORM_FEEDBACK_BUFFER_START and TRANSFORM_FEEDBACK_BUFFER_SIZE"));
	addChild(new TransformFeedbackSwitchingBufferCase(m_context, "transform_feedback_switching_buffer", "TRANSFORM_FEEDBACK_BUFFER_BINDING while switching transform feedback objects"));

	// uniform buffers
	addChild(new UniformBufferBindingCase(m_context, "uniform_buffer_binding", "UNIFORM_BUFFER_BINDING"));
	addChild(new UniformBufferBufferCase(m_context, "uniform_buffer_start_size", "UNIFORM_BUFFER_START and UNIFORM_BUFFER_SIZE"));

	static const QueryType verifiers[] = { QUERY_INDEXED_INTEGER, QUERY_INDEXED_INTEGER64 };
	static const QueryType vec4Verifiers[] = { QUERY_INDEXED_INTEGER_VEC4, QUERY_INDEXED_INTEGER64_VEC4 };

#define FOR_EACH_VERIFIER(X) \
	for (int verifierNdx = 0; verifierNdx < DE_LENGTH_OF_ARRAY(verifiers); ++verifierNdx)	\
	{																						\
		const QueryType verifier = verifiers[verifierNdx];									\
		const char* verifierSuffix = getVerifierSuffix(verifier);							\
		this->addChild(X);																	\
	}

#define FOR_EACH_VEC4_VERIFIER(X) \
	for (int verifierNdx = 0; verifierNdx < DE_LENGTH_OF_ARRAY(vec4Verifiers); ++verifierNdx)	\
	{																							\
		const QueryType verifier = vec4Verifiers[verifierNdx];									\
		const char* verifierSuffix = getVerifierSuffix(verifier);								\
		this->addChild(X);																		\
	}

	addChild(new EnableBlendCase(m_context, "blend_isenabledi", "BLEND", QUERY_INDEXED_ISENABLED));
	FOR_EACH_VEC4_VERIFIER(new ColorMaskCase		(m_context, (std::string() + "color_mask_" + verifierSuffix).c_str(),						"COLOR_WRITEMASK",						verifier))
	FOR_EACH_VERIFIER(new BlendFuncCase				(m_context, (std::string() + "blend_func_" + verifierSuffix).c_str(),						"BLEND_SRC and BLEND_DST",				verifier))
	FOR_EACH_VERIFIER(new BlendEquationCase			(m_context, (std::string() + "blend_equation_" + verifierSuffix).c_str(),					"BLEND_EQUATION_RGB and BLEND_DST",		verifier))
	FOR_EACH_VERIFIER(new BlendEquationAdvancedCase	(m_context, (std::string() + "blend_equation_advanced_" + verifierSuffix).c_str(),			"BLEND_EQUATION_RGB and BLEND_DST",		verifier))
}

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