FIFE  2008.0
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glimage.h
00001 /***************************************************************************
00002  *   Copyright (C) 2005-2008 by the FIFE team                              *
00003  *   http://www.fifengine.de                                               *
00004  *   This file is part of FIFE.                                            *
00005  *                                                                         *
00006  *   FIFE is free software; you can redistribute it and/or                 *
00007  *   modify it under the terms of the GNU Lesser General Public            *
00008  *   License as published by the Free Software Foundation; either          *
00009  *   version 2.1 of the License, or (at your option) any later version.    *
00010  *                                                                         *
00011  *   This library is distributed in the hope that it will be useful,       *
00012  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
00013  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
00014  *   Lesser General Public License for more details.                       *
00015  *                                                                         *
00016  *   You should have received a copy of the GNU Lesser General Public      *
00017  *   License along with this library; if not, write to the                 *
00018  *   Free Software Foundation, Inc.,                                       *
00019  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
00020  ***************************************************************************/
00021 
00022 #ifndef FIFE_VIDEO_RENDERBACKENDS_OPENGL_GLIMAGE_H
00023 #define FIFE_VIDEO_RENDERBACKENDS_OPENGL_GLIMAGE_H
00024 
00025 // Standard C++ library includes
00026 #include <vector>
00027 
00028 // Platform specific includes
00029 #include "util/base/fife_stdint.h"
00030 
00031 // 3rd party library includes
00032 #include <SDL_video.h>
00033 
00034 // FIFE includes
00035 // These includes are split up in two parts, separated by one empty line
00036 // First block: files included from the FIFE root src directory
00037 // Second block: files included from the same folder
00038 #include "video/image.h"
00039 
00040 #include "fife_opengl.h"
00041 
00042 namespace FIFE {
00043     // FIXME: due to image chunking issues, GLImage uses SDLImage to draw primitives on its surface
00044     // remember though that OpenGL backend is not separate thing of SDL; instead it sits on top of it
00045     class SDLImage;
00046 
00047 
00058     class GLImage : public Image {
00059     public:
00060         GLImage(SDL_Surface* surface);
00061         GLImage(const uint8_t* data, unsigned int width, unsigned int height);
00062         virtual ~GLImage();
00063         void invalidate();
00064         void render(const Rect& rect, SDL_Surface* dst, unsigned char alpha = 255);
00065         void saveImage(const std::string& filename);
00066         bool putPixel(int x, int y, int r, int g, int b, int a = 255);
00067         void drawLine(const Point& p1, const Point& p2, int r, int g, int b, int a = 255);
00068         void drawTriangle(const Point& p1, const Point& p2, const Point& p3, int r, int g, int b, int a = 255);
00069         void drawRectangle(const Point& p, uint16_t w, uint16_t h, uint8_t r, uint8_t g, uint8_t b, uint8_t a = 255);
00070         void fillRectangle(const Point& p, uint16_t w, uint16_t h, uint8_t r, uint8_t g, uint8_t b, uint8_t a = 255);
00071         void drawQuad(const Point& p1, const Point& p2, const Point& p3, const Point& p4,  int r, int g, int b, int a = 255);
00072         void drawVertex(const Point& p, const uint8_t size, int r, int g, int b, int a = 255);
00073         void drawLightPrimitive(const Point& p, uint8_t intensity, float radius, int subdivisions, float xstretch, float ystretch, uint8_t red, uint8_t green, uint8_t blue);
00074 
00075     protected:
00076         void setClipArea(const Rect& cliparea, bool clear);
00077 
00078     private:
00079         // texture coords to use
00080         float m_col_tex_coord;
00081         // @see m_col_tex_coord
00082         float m_row_tex_coord;
00083 
00086         GLuint* m_textureids;
00087 
00090         void cleanup();
00091 
00094         void resetGlimage();
00095 
00096         //void saveAsPng(const std::string& filename, SDL_Surface& surface);
00097 
00100         void generateGLTexture();
00101 
00109         SDLImage* m_sdlimage;
00110 
00111         uint32_t m_chunk_size_w;
00112         uint32_t m_chunk_size_h;
00113 
00114         SDL_Color m_colorkey;
00115     };
00116 }
00117 
00118 #endif
00119 /* vim: set noexpandtab: set shiftwidth=2: set tabstop=2: */