/* * 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 "resources/resource.h" #include <SDL.h> class Dye; class Image; struct Position; /** * Defines a class for loading and storing images. */ class ImageHelper { friend class CompoundSprite; friend class Image; public: virtual ~ImageHelper() { } /** * 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. */ Image *load(SDL_RWops *const rw); #ifdef __GNUC__ virtual Image *load(SDL_RWops *rw, Dye const &dye) = 0; virtual Image *load(SDL_Surface *) = 0; virtual Image *createTextSurface(SDL_Surface *tmpImage, float alpha) = 0; virtual int useOpenGL() = 0; #else virtual Image *load(SDL_RWops *rw, Dye const &dye) { return nullptr; } virtual Image *load(SDL_Surface *) { return nullptr; } virtual Image *createTextSurface(SDL_Surface *const tmpImage, const float alpha) { return nullptr; } virtual int useOpenGL() { return 0; } #endif static SDL_Surface *convertTo32Bit(SDL_Surface *const tmpImage); void dumpSurfaceFormat(const SDL_Surface *const image) const; static void setEnableAlpha(const bool n) { mEnableAlpha = n; } protected: static bool mEnableAlpha; }; extern ImageHelper *imageHelper; extern ImageHelper *sdlImageHelper; #endif