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/*
* The Mana World
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World 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.
*
* The Mana World 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 The Mana World; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* $Id$
*/
#include "sdlimageloader.h"
#include <string>
#include <SDL_image.h>
#include <guichan/exception.hpp>
#include "resourcemanager.h"
void SDLImageLoader::prepare(const std::string &filename)
{
if (mCurrentImage)
{
throw GCN_EXCEPTION("Function called before finalizing or discarding last loaded image.");
}
ResourceManager *resman = ResourceManager::getInstance();
int fileSize;
void *buffer = resman->loadFile(filename, fileSize);
SDL_Surface *tmp = NULL;
if (buffer) {
SDL_RWops *rw = SDL_RWFromMem(buffer, fileSize);
tmp = IMG_Load_RW(rw, 1);
::free(buffer);
}
if (!tmp)
{
throw GCN_EXCEPTION(std::string("Unable to load image file: ")+filename);
}
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
mCurrentImage = SDL_CreateRGBSurface(SDL_SWSURFACE, 0, 0, 32,
rmask, gmask, bmask, amask);
if (!mCurrentImage)
{
throw GCN_EXCEPTION(std::string("Not enough memory to load: ")+filename);
}
SDL_Surface* tmp2 = SDL_ConvertSurface(tmp, mCurrentImage->format, SDL_SWSURFACE);
SDL_FreeSurface(tmp);
SDL_FreeSurface(mCurrentImage);
mCurrentImage = tmp2;
}
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