sdl2softwareimagehelper.h

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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) 2011-2019  The ManaPlus Developers
 *  Copyright (C) 2019-2021  Andrei Karas
 *
 *  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 RESOURCES_SDL2SOFTWAREIMAGEHELPER_H
#define RESOURCES_SDL2SOFTWAREIMAGEHELPER_H
 
#ifdef USE_SDL2
 
#include "localconsts.h"
 
#include "resources/imagehelper.h"
 
class Dye;
class Image;
 
class SDL2SoftwareImageHelper final : public ImageHelper
{
    friend class Image;
 
    public:
        SDL2SoftwareImageHelper() :
            ImageHelper()
        { }
 
        A_DELETE_COPY(SDL2SoftwareImageHelper)
 
        
        Image *loadSurface(SDL_Surface *const tmpImage) override final
                           A_WARN_UNUSED;
 
        Image *createTextSurface(SDL_Surface *const tmpImage,
                                 const int width, const int height,
                                 const float alpha)
                                 override final A_WARN_UNUSED;
 
        constexpr2 static void SDLSetEnableAlphaCache(const bool n) noexcept2
        { mEnableAlphaCache = n; }
 
        static bool SDLGetEnableAlphaCache() noexcept2 A_WARN_UNUSED
        { return mEnableAlphaCache; }
 
        static SDL_Surface* SDLDuplicateSurface(SDL_Surface *const tmpImage)
                                                A_WARN_UNUSED;
 
        static int combineSurface(SDL_Surface *restrict const src,
                                  SDL_Rect *restrict const srcrect,
                                  SDL_Surface *restrict const dst,
                                  SDL_Rect *restrict const dstrect);
 
        static void setFormat(SDL_PixelFormat *const format) noexcept2
        {
            mFormat = format;
            if (mFormat)
            {
                mFormat->Amask = ~(format->Rmask
                    | format->Gmask | format->Bmask);
            }
        }
 
    protected:
        Image *_SDLload(SDL_Surface *tmpImage) A_WARN_UNUSED;
 
        static bool mEnableAlphaCache;
        static SDL_PixelFormat *mFormat;
};
 
#endif  // USE_SDL2
#endif  // RESOURCES_SDL2SOFTWAREIMAGEHELPER_H