Blame c++/contourgl/clrender.h

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/*
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    ......... 2015 Ivan Mahonin
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    This program is free software: you can redistribute it and/or modify
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    it under the terms of the GNU General Public License as published by
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    the Free Software Foundation, either version 3 of the License, or
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    (at your option) any later version.
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    This program is distributed in the hope that it will be useful,
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    but WITHOUT ANY WARRANTY; without even the implied warranty of
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    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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    GNU General Public License for more details.
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    You should have received a copy of the GNU General Public License
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    along with this program.  If not, see <http: licenses="" www.gnu.org="">.</http:>
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*/
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#ifndef _RASTERIZER_H_
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#define _RASTERIZER_H_
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#include <vector></vector>
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#include "clcontext.h"
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#include "geometry.h"
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#include "contour.h"
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#include "swrender.h"
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class ClRender {
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private:
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	ClContext &cl;
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	cl_program contour_program;
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	cl_kernel contour_clear_kernel;
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	cl_kernel contour_path_kernel;
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	cl_kernel contour_fill_kernel;
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	Surface *surface;
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	cl_mem path_buffer;
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	cl_mem mark_buffer;
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	cl_mem surface_image;
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	cl_event prev_event;
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public:
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	ClRender(ClContext &cl);
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	~ClRender();
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	void send_surface(Surface *surface);
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	Surface* receive_surface();
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	void send_path(const vec2f *path, int count);
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	void path(int start, int count, const Color &color, bool invert, bool evenodd);
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	void wait();
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};
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class SwRenderAlt {
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public:
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	struct Pixel {
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		Real area;
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		Real cover;
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		Pixel(): area(), cover() { }
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		void add(Real area, Real cover) { this->area += area; this->cover += cover; }
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	};
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private:
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	std::vector<pixel> data;</pixel>
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public:
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	const int width;
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	const int height;
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	SwRenderAlt(int width, int height): data(width*height), width(width), height(height) { }
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	Pixel* operator[] (int row) { return &data.front() + row*width; }
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	const Pixel* operator[] (int row) const { return &data.front() + row*width; }
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	void line(const Vector &p0, const Vector &p1);
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};
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#endif