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/*
* 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:
ImageHelper()
{ }
A_DELETE_COPY(ImageHelper);
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
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