/* * The ManaPlus Client * Copyright (C) 2004-2009 The Mana World Development Team * Copyright (C) 2009-2010 The Mana Developers * Copyright (C) 2011-2012 The ManaPlus Developers * * This file is part of The ManaPlus Client. * * 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 2 of the License, or * 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://www.gnu.org/licenses/>. */ #ifndef IMAGEHELPER_H #define IMAGEHELPER_H #include "localconsts.h" #include "main.h" #include "resources/resource.h" #include <SDL.h> #ifdef USE_OPENGL /* The definition of OpenGL extensions by SDL is giving problems with recent * gl.h headers, since they also include these definitions. As we're not using * extensions anyway it's safe to just disable the SDL version. */ //#define NO_SDL_GLEXT #define GL_GLEXT_PROTOTYPES 1 #include <SDL_opengl.h> #endif #include <map> class Dye; class Image; struct Position; /** * Defines a class for loading and storing images. */ class ImageHelper : public Resource { friend class CompoundSprite; friend class Graphics; friend class Image; #ifdef USE_OPENGL friend class OpenGLGraphics; friend class OpenGL1Graphics; #endif public: /** * Loads an image from an SDL_RWops structure. * * @param rw The SDL_RWops to load the image from. * * @return <code>NULL</code> if an error occurred, a valid pointer * otherwise. */ static Resource *load(SDL_RWops *rw); /** * Loads an image from an SDL_RWops structure and recolors it. * * @param rw The SDL_RWops to load the image from. * @param dye The dye used to recolor the image. * * @return <code>NULL</code> if an error occurred, a valid pointer * otherwise. */ static Resource *load(SDL_RWops *rw, Dye const &dye); /** * Loads an image from an SDL surface. */ static Image *load(SDL_Surface *); static SDL_Surface *convertTo32Bit(SDL_Surface* tmpImage); static Image *createTextSurface(SDL_Surface *tmpImage, float alpha); static void SDLSetEnableAlphaCache(bool n) { mEnableAlphaCache = n; } static bool SDLGetEnableAlphaCache() { return mEnableAlphaCache; } static void setEnableAlpha(bool n) { mEnableAlpha = n; } #ifdef USE_OPENGL // OpenGL only public functions /** * Sets the target image format. Use <code>false</code> for SDL and * <code>true</code> for OpenGL. */ static void setLoadAsOpenGL(int useOpenGL); static int getLoadAsOpenGL() { return mUseOpenGL; } static int getTextureType() { return mTextureType; } static int getInternalTextureType() { return mInternalTextureType; } static void setInternalTextureType(int n) { mInternalTextureType = n; } static void setBlur(bool n) { mBlur = n; } static int mTextureType; static int mInternalTextureType; static void dumpSurfaceFormat(SDL_Surface *image); static SDL_Surface* SDLDuplicateSurface(SDL_Surface* tmpImage); #endif /** * Tells if the image was loaded using OpenGL or SDL * @return true if OpenGL, false if SDL. */ static int useOpenGL(); protected: /** SDL_Surface to SDL_Surface Image loader */ static Image *_SDLload(SDL_Surface *tmpImage); static bool mEnableAlphaCache; static bool mEnableAlpha; // ----------------------- // OpenGL protected members // ----------------------- #ifdef USE_OPENGL /** * Returns the first power of two equal or bigger than the input. */ static int powerOfTwo(int input); static Image *_GLload(SDL_Surface *tmpImage); static int mUseOpenGL; static int mTextureSize; static bool mBlur; #endif }; #endif