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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) 2011-2020 The ManaPlus Developers
* Copyright (C) 2020-2023 The ManaVerse 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
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