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love-canvas_getPixel / src / modules / graphics / opengl / Quad.h

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/**
 * Copyright (c) 2006-2012 LOVE Development Team
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors be held liable for any damages
 * arising from the use of this software.
 *
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 *
 * 1. The origin of this software must not be misrepresented; you must not
 *    claim that you wrote the original software. If you use this software
 *    in a product, an acknowledgment in the product documentation would be
 *    appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 *    misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 **/

#ifndef LOVE_GRAPHICS_OPENGL_QUAD_H
#define LOVE_GRAPHICS_OPENGL_QUAD_H

// LOVE
#include "common/math.h"
#include <graphics/Quad.h>

namespace love
{
namespace graphics
{
namespace opengl
{

class Quad : public love::graphics::Quad
{
public:

	/**
	 * Creates a new Quad of size (w,h), using (x,y) as the top-left
	 * anchor point in the source image. The size of the source image is
	 * is specified by (sw,sh).
	 *
	 * @param sw Width of the source image.
	 * @param sh Height of the source image.
	 **/
	Quad(const Viewport &v, float sw, float sh);

	virtual ~Quad();

	void refresh(const Viewport &v, float sw, float sh);

	void setViewport(const Viewport &v);
	Viewport getViewport() const;

	void flip(bool x, bool y);

	/**
	 * Gets a pointer to the vertices.
	 **/
	const vertex *getVertices() const;

protected:

	static const unsigned int NUM_VERTICES = 4;
	vertex vertices[NUM_VERTICES];

	Viewport viewport;
	float sw, sh;
};

} // opengl
} // graphics
} // love

#endif // LOVE_GRAPHICS_OPENGL_QUAD_H