glstate.hpp

/**************************************************************************
 *
 * Copyright 2011 Jose Fonseca
 * 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 restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the 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 Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 **************************************************************************/

#pragma once


#include <ostream>

#include "glimports.hpp"


#ifndef ARRAYSIZE
#define ARRAYSIZE(_x) (sizeof(_x)/sizeof((_x)[0]))
#endif


namespace image {
    class Image;
}

class StateWriter;


namespace glstate {


extern const GLenum
textureTargets[];

extern const unsigned
numTextureTargets;


GLenum
getTextureBinding(GLenum target);

const char *enumToString(GLenum pname);

void
dumpCurrentContext(StateWriter &writer);

bool
getDrawableBounds(GLint *width, GLint *height);

int
getDrawBufferImageCount(void);

image::Image *
getDrawBufferImage(int n, bool backBuffer);


} /* namespace glstate */