Mercurial > fife-parpg
diff ext/guichan-0.8.2/src/sdl/sdlimageloader.cpp @ 378:64738befdf3b
bringing in the changes from the build_system_rework branch in preparation for the 0.3.0 release. This commit will require the Jan2010 devkit. Clients will also need to be modified to the new way to import fife.
author | vtchill@33b003aa-7bff-0310-803a-e67f0ece8222 |
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date | Mon, 11 Jan 2010 23:34:52 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/ext/guichan-0.8.2/src/sdl/sdlimageloader.cpp Mon Jan 11 23:34:52 2010 +0000 @@ -0,0 +1,122 @@ +/* _______ __ __ __ ______ __ __ _______ __ __ + * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ + * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / + * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / + * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / + * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / + * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ + * + * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson + * + * + * Per Larsson a.k.a finalman + * Olof Naessén a.k.a jansem/yakslem + * + * Visit: http://guichan.sourceforge.net + * + * License: (BSD) + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name of Guichan nor the names of its contributors may + * be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * For comments regarding functions please see the header file. + */ + +#include "guichan/sdl/sdlimage.hpp" + +#include "SDL_image.h" + +#include "guichan/exception.hpp" +#include "guichan/sdl/sdlimageloader.hpp" + +namespace gcn +{ + Image* SDLImageLoader::load(const std::string& filename, + bool convertToDisplayFormat) + { + SDL_Surface *loadedSurface = loadSDLSurface(filename); + + if (loadedSurface == NULL) + { + throw GCN_EXCEPTION( + std::string("Unable to load image file: ") + filename); + } + + SDL_Surface *surface = convertToStandardFormat(loadedSurface); + SDL_FreeSurface(loadedSurface); + + if (surface == NULL) + { + throw GCN_EXCEPTION( + std::string("Not enough memory to load: ") + filename); + } + + Image *image = new SDLImage(surface, true); + + if (convertToDisplayFormat) + { + image->convertToDisplayFormat(); + } + + return image; + } + + SDL_Surface* SDLImageLoader::loadSDLSurface(const std::string& filename) + { + return IMG_Load(filename.c_str()); + } + + SDL_Surface* SDLImageLoader::convertToStandardFormat(SDL_Surface* surface) + { + Uint32 rmask, gmask, bmask, amask; +#if SDL_BYTEORDER == SDL_BIG_ENDIAN + rmask = 0xff000000; + gmask = 0x00ff0000; + bmask = 0x0000ff00; + amask = 0x000000ff; +#else + rmask = 0x000000ff; + gmask = 0x0000ff00; + bmask = 0x00ff0000; + amask = 0xff000000; +#endif + + SDL_Surface *colorSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, + 0, 0, 32, + rmask, gmask, bmask, amask); + + SDL_Surface *tmp = NULL; + + if (colorSurface != NULL) + { + tmp = SDL_ConvertSurface(surface, colorSurface->format, + SDL_SWSURFACE); + SDL_FreeSurface(colorSurface); + } + + return tmp; + } +}