mirror of
https://github.com/Oibaf66/frodo-wii.git
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123 lines
4.1 KiB
C++
123 lines
4.1 KiB
C++
/* _______ __ __ __ ______ __ __ _______ __ __
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* / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
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* / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
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* / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
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* / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
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* /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
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* \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
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*
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* Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
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*
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*
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* Per Larsson a.k.a finalman
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* Olof Naessén a.k.a jansem/yakslem
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*
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* Visit: http://guichan.sourceforge.net
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*
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* License: (BSD)
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name of Guichan nor the names of its contributors may
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* be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* For comments regarding functions please see the header file.
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*/
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#include "guichan/sdl/sdlimage.hpp"
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#include "SDL_image.h"
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#include "guichan/exception.hpp"
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#include "guichan/sdl/sdlimageloader.hpp"
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namespace gcn
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{
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Image* SDLImageLoader::load(const std::string& filename,
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bool convertToDisplayFormat)
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{
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SDL_Surface *loadedSurface = loadSDLSurface(filename);
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if (loadedSurface == NULL)
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{
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throw GCN_EXCEPTION(
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std::string("Unable to load image file: ") + filename);
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}
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SDL_Surface *surface = convertToStandardFormat(loadedSurface);
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SDL_FreeSurface(loadedSurface);
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if (surface == NULL)
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{
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throw GCN_EXCEPTION(
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std::string("Not enough memory to load: ") + filename);
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}
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Image *image = new SDLImage(surface, true);
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if (convertToDisplayFormat)
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{
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image->convertToDisplayFormat();
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}
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return image;
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}
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SDL_Surface* SDLImageLoader::loadSDLSurface(const std::string& filename)
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{
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return IMG_Load(filename.c_str());
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}
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SDL_Surface* SDLImageLoader::convertToStandardFormat(SDL_Surface* surface)
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{
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Uint32 rmask, gmask, bmask, amask;
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#if SDL_BYTEORDER == SDL_BIG_ENDIAN
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rmask = 0xff000000;
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gmask = 0x00ff0000;
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bmask = 0x0000ff00;
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amask = 0x000000ff;
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#else
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rmask = 0x000000ff;
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gmask = 0x0000ff00;
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bmask = 0x00ff0000;
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amask = 0xff000000;
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#endif
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SDL_Surface *colorSurface = SDL_CreateRGBSurface(SDL_SWSURFACE,
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0, 0, 32,
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rmask, gmask, bmask, amask);
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SDL_Surface *tmp = NULL;
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if (colorSurface != NULL)
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{
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tmp = SDL_ConvertSurface(surface, colorSurface->format,
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SDL_SWSURFACE);
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SDL_FreeSurface(colorSurface);
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}
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return tmp;
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}
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}
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