FIFE 2008.0
|
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_IMAGE_H 00023 #define FIFE_VIDEO_IMAGE_H 00024 00025 // Standard C++ library includes 00026 #include <stack> 00027 00028 // 3rd party library includes 00029 #include <SDL.h> 00030 #include <png.h> 00031 00032 // FIFE includes 00033 // These includes are split up in two parts, separated by one empty line 00034 // First block: files included from the FIFE root src directory 00035 // Second block: files included from the same folder 00036 #include "util/base/fife_stdint.h" 00037 #include "util/base/resourceclass.h" 00038 #include "util/resource/resource.h" 00039 #include "util/structures/point.h" 00040 #include "util/structures/rect.h" 00041 00042 namespace FIFE { 00043 00044 class AbstractImage { 00045 public: 00046 virtual ~AbstractImage() {} 00047 00051 virtual SDL_Surface* getSurface() = 0; 00052 00057 virtual unsigned int getWidth() const = 0; 00058 00061 virtual unsigned int getHeight() const = 0; 00062 00066 virtual const Rect& getArea() = 0; 00067 00070 virtual bool putPixel(int x, int y, int r, int g, int b, int a = 255) = 0; 00071 00074 virtual void drawLine(const Point& p1, const Point& p2, int r, int g, int b, int a = 255) = 0; 00075 00078 virtual void drawTriangle(const Point& p1, const Point& p2, const Point& p3, int r, int g, int b, int a = 255) = 0; 00079 00082 virtual void drawRectangle(const Point& p, uint16_t w, uint16_t h, uint8_t r, uint8_t g, uint8_t b, uint8_t a = 255) = 0; 00083 00086 virtual void fillRectangle(const Point& p, uint16_t w, uint16_t h, uint8_t r, uint8_t g, uint8_t b, uint8_t a = 255) = 0; 00087 00090 virtual void drawQuad(const Point& p1, const Point& p2, const Point& p3, const Point& p4, int r, int g, int b, int a = 255) = 0; 00091 00094 virtual void drawVertex(const Point& p, const uint8_t size, int r, int g, int b, int a = 255) = 0; 00095 00098 virtual 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) = 0; 00099 00102 virtual void getPixelRGBA(int x, int y, uint8_t* r, uint8_t* g, uint8_t* b, uint8_t* a) = 0; 00103 00108 virtual void pushClipArea(const Rect& cliparea, bool clear=true) = 0; 00109 00113 virtual void popClipArea() = 0; 00114 00118 virtual const Rect& getClipArea() const = 0; 00119 00122 virtual void saveImage(const std::string& filename) = 0; 00123 00129 virtual void setAlphaOptimizerEnabled(bool enabled) = 0; 00130 00133 virtual bool isAlphaOptimizerEnabled() = 0; 00134 }; 00135 00138 class Image : public ResourceClass, public AbstractImage { 00139 public: 00144 Image(SDL_Surface* surface); 00145 00151 Image(const uint8_t* data, unsigned int width, unsigned int height); 00152 00155 virtual void invalidate() = 0; 00156 00163 virtual void render(const Rect& rect, SDL_Surface* dst, unsigned char alpha = 255) = 0; 00164 00170 void render(const Rect& rect, unsigned char alpha = 255); 00171 00175 SDL_Surface* detachSurface(); 00176 00177 virtual ~Image(); 00178 SDL_Surface* getSurface() { return m_surface; } 00179 unsigned int getWidth() const; 00180 unsigned int getHeight() const; 00181 const Rect& getArea(); 00182 void setXShift(int xshift); 00183 inline int getXShift() const { 00184 return m_xshift; 00185 } 00186 void setYShift(int yshift); 00187 inline int getYShift() const { 00188 return m_yshift; 00189 } 00190 void getPixelRGBA(int x, int y, uint8_t* r, uint8_t* g, uint8_t* b, uint8_t* a); 00191 void pushClipArea(const Rect& cliparea, bool clear=true); 00192 void popClipArea(); 00193 const Rect& getClipArea() const; 00194 void setAlphaOptimizerEnabled(bool enabled) { m_isalphaoptimized = enabled; } 00195 bool isAlphaOptimizerEnabled() { return m_isalphaoptimized; } 00196 00197 protected: 00201 virtual void setClipArea(const Rect& cliparea, bool clear) = 0; 00202 //saves images to png format 00203 virtual void saveAsPng(const std::string& filename, SDL_Surface& surface); 00207 virtual void clearClipArea(); 00208 00209 // The SDL Surface used. 00210 SDL_Surface* m_surface; 00211 // The X shift of the Image 00212 int m_xshift; 00213 // The Y shift of the Image 00214 int m_yshift; 00215 00216 class ClipInfo { 00217 public: 00218 Rect r; 00219 bool clearing; 00220 }; 00221 std::stack<ClipInfo> m_clipstack; 00222 00223 // image area 00224 Rect m_area; 00225 bool m_isalphaoptimized; 00226 00227 private: 00228 void reset(SDL_Surface* surface); 00229 }; 00230 00231 } 00232 00233 #endif