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diff --git a/src/resources/imagehelper.h b/src/resources/imagehelper.h
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--- a/src/resources/imagehelper.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) 2011-2017 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 RESOURCES_IMAGEHELPER_H
-#define RESOURCES_IMAGEHELPER_H
-
-#include "localconsts.h"
-
-#include "enums/render/rendertype.h"
-
-PRAGMA48(GCC diagnostic push)
-PRAGMA48(GCC diagnostic ignored "-Wshadow")
-#include <SDL_video.h>
-PRAGMA48(GCC diagnostic pop)
-
-class Dye;
-class Image;
-
-/**
- * Defines a class for loading and storing images.
- */
-class ImageHelper notfinal
-{
- friend class CompoundSprite;
- friend class Image;
-
- public:
- 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) A_WARN_UNUSED;
-
- virtual Image *load(SDL_RWops *const rw, Dye const &dye) A_WARN_UNUSED;
-
-#ifdef __GNUC__
- virtual Image *loadSurface(SDL_Surface *const) A_WARN_UNUSED = 0;
-
- virtual Image *createTextSurface(SDL_Surface *const tmpImage,
- const int width, const int height,
- float alpha) A_WARN_UNUSED = 0;
-#else // __GNUC__
-
- virtual Image *loadSurface(SDL_Surface *const) A_WARN_UNUSED
- { return nullptr; }
-
- virtual Image *createTextSurface(SDL_Surface *const tmpImage,
- const int width, const int height,
- const float alpha) const A_WARN_UNUSED
- { return nullptr; }
-#endif // __GNUC__
-
- virtual SDL_Surface *create32BitSurface(int width,
- int height)
- const A_WARN_UNUSED;
-
- virtual void copySurfaceToImage(const Image *const image A_UNUSED,
- const int x A_UNUSED,
- const int y A_UNUSED,
- SDL_Surface *const surface A_UNUSED)
- const
- { }
-
- static SDL_Surface *convertTo32Bit(SDL_Surface *const tmpImage)
- A_WARN_UNUSED;
-
- static void dumpSurfaceFormat(const SDL_Surface *const image);
-
- constexpr2 static void setEnableAlpha(const bool n) noexcept2
- { mEnableAlpha = n; }
-
- static SDL_Surface *loadPng(SDL_RWops *const rw);
-
- constexpr2 static void setOpenGlMode(const RenderType useOpenGL)
- noexcept2
- { mUseOpenGL = useOpenGL; }
-
- virtual RenderType useOpenGL() const noexcept2 A_WARN_UNUSED
- { return mUseOpenGL; }
-
- virtual void postInit()
- { }
-
- protected:
- ImageHelper()
- { }
-
- static bool mEnableAlpha;
- static RenderType mUseOpenGL;
-};
-
-extern ImageHelper *imageHelper A_NONNULLPOINTER;
-extern ImageHelper *surfaceImageHelper A_NONNULLPOINTER;
-#endif // RESOURCES_IMAGEHELPER_H