/*

    ......... 2015 Ivan Mahonin

    This program is free software: you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation, either version 3 of the License, or

    (at your option) any later version.

    This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License

    along with this program.  If not, see <http: licenses="" www.gnu.org="">.</http:>

*/

#ifndef _RASTERIZER_H_

#define _RASTERIZER_H_

#include <vector></vector>

#include "clcontext.h"

#include "geometry.h"

#include "contour.h"

#include "swrender.h"

class ClRender {

private:

	ClContext &cl;

	cl_program contour_program;

	cl_kernel contour_clear_kernel;

	cl_kernel contour_path_kernel;

	cl_kernel contour_fill_kernel;

	Surface *surface;

	cl_mem path_buffer;

	cl_mem mark_buffer;

	cl_mem surface_image;

	cl_event prev_event;

public:

	ClRender(ClContext &cl);

	~ClRender();

	void send_surface(Surface *surface);

	Surface* receive_surface();

	void send_path(const vec2f *path, int count);

	void path(int start, int count, const Color &color, bool invert, bool evenodd);

	void wait();

};

class SwRenderAlt {

public:

	struct Pixel {

		Real area;

		Real cover;

		Pixel(): area(), cover() { }

		void add(Real area, Real cover) { this->area += area; this->cover += cover; }

	};

private:

	std::vector<pixel> data;</pixel>

public:

	const int width;

	const int height;

	SwRenderAlt(int width, int height): data(width*height), width(width), height(height) { }

	Pixel* operator[] (int row) { return &data.front() + row*width; }

	const Pixel* operator[] (int row) const { return &data.front() + row*width; }

	void line(const Vector &p0, const Vector &p1);

};

#endif