#ifndef _GLSRANDOMSHADERCASE_HPP
#define _GLSRANDOMSHADERCASE_HPP
/*-------------------------------------------------------------------------
 * drawElements Quality Program OpenGL (ES) 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 Random shader test case.
 *//*--------------------------------------------------------------------*/

#include "tcuDefs.hpp"
#include "tcuTestCase.hpp"
#include "gluRenderContext.hpp"
#include "rsgParameters.hpp"
#include "tcuSurface.hpp"
#include "rsgShader.hpp"
#include "rsgVariableValue.hpp"
#include "gluTexture.hpp"

#include <string>
#include <vector>
#include <map>

namespace deqp
{
namespace gls
{

class VertexArray
{
public:
								VertexArray			(const rsg::ShaderInput* input, int numVertices);
								~VertexArray		(void) {}

	const std::vector<float>&	getVertices			(void) const	{ return m_vertices;		}
	std::vector<float>&			getVertices			(void)			{ return m_vertices;		}
	const char*					getName				(void) const	{ return m_input->getVariable()->getName();						}
	int							getNumComponents	(void) const	{ return m_input->getVariable()->getType().getNumElements();	}
	rsg::ConstValueRangeAccess	getValueRange		(void) const	{ return m_input->getValueRange();								}

private:
	const rsg::ShaderInput*		m_input;
	std::vector<float>			m_vertices;
};

class TextureManager
{
public:
															TextureManager		(void);
															~TextureManager		(void);

	void													bindTexture			(int unit, const glu::Texture2D* tex2D);
	void													bindTexture			(int unit, const glu::TextureCube* texCube);

	std::vector<std::pair<int, const glu::Texture2D*> >		getBindings2D		(void) const;
	std::vector<std::pair<int, const glu::TextureCube*> >	getBindingsCube		(void) const;

private:
	std::map<int, const glu::Texture2D*>					m_tex2D;
	std::map<int, const glu::TextureCube*>					m_texCube;
};

class RandomShaderCase : public tcu::TestCase
{
public:
									RandomShaderCase		(tcu::TestContext& testCtx, glu::RenderContext& renderCtx, const char* name, const char* description, const rsg::ProgramParameters& params);
	virtual							~RandomShaderCase		(void);

	virtual void					init					(void);
	virtual void					deinit					(void);
	virtual IterateResult			iterate					(void);

private:
	void							checkShaderLimits		(const rsg::Shader& shader) const;
	void							checkProgramLimits		(const rsg::Shader& vtxShader, const rsg::Shader& frgShader) const;

protected:
	glu::RenderContext&				m_renderCtx;

	// \todo [2011-12-21 pyry] Multiple textures!
	const glu::Texture2D*			getTex2D				(void);
	const glu::TextureCube*			getTexCube				(void);

	rsg::ProgramParameters			m_parameters;
	int								m_gridWidth;
	int								m_gridHeight;

	rsg::Shader						m_vertexShader;
	rsg::Shader						m_fragmentShader;
	std::vector<rsg::VariableValue>	m_uniforms;

	std::vector<VertexArray>		m_vertexArrays;
	std::vector<deUint16>			m_indices;

	TextureManager					m_texManager;
	glu::Texture2D*					m_tex2D;
	glu::TextureCube*				m_texCube;
};

} // gls
} // deqp

#endif // _GLSRANDOMSHADERCASE_HPP