// BEGIN_COPYRIGHT -*- glean -*-
// 
// Copyright (C) 1999  Allen Akin   All Rights Reserved.
// 
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
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// copy, modify, merge, publish, distribute, sublicense, and/or
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// Software is furnished to do so, subject to the following
// conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the
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// WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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// tpointatten.h:  Test GL_ARB_point_parameters extension.
// Brian Paul  6 October 2005

#ifndef __tpointatten_h__
#define __tpointatten_h__

#include "tbasic.h"

namespace GLEAN {

#define windowWidth 100
#define windowHeight 503   // yes, odd


class PointAttenuationTest: public BasicTest
{
public:
	PointAttenuationTest(const char *testName,
			     const char *filter,
			     const char *extensions,
			     const char *description);

	virtual void runOne(BasicResult& r, Window& w);
	virtual void logOne(BasicResult& r);

private:
	GLenum errorCode;
	const char *errorPos;
	GLfloat aliasedLimits[2];  // min/max
	GLfloat smoothLimits[2];   // min/max

	void setup(void);
	bool testPointRendering(GLboolean smooth);
	void reportFailure(GLfloat initSize,
			   const GLfloat attenuation[3],
			   GLfloat min, GLfloat max,
			   GLfloat eyeZ, GLboolean smooth,
			   GLfloat expected, GLfloat actual) const;
	void reportSuccess(int count, GLboolean smooth) const;
	GLfloat expectedSize(GLfloat initSize,
			     const GLfloat attenuation[3],
			     GLfloat min, GLfloat max,
			     GLfloat eyeZ, GLboolean smooth) const;
	GLfloat measureSize(GLfloat yPos) const;
};

} // namespace GLEAN

#endif // __tpointatten_h__