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Diffstat (limited to 'src/resources/surfaceimagehelper.cpp')
| -rw-r--r-- | src/resources/surfaceimagehelper.cpp | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/src/resources/surfaceimagehelper.cpp b/src/resources/surfaceimagehelper.cpp new file mode 100644 index 000000000..1b5997ce0 --- /dev/null +++ b/src/resources/surfaceimagehelper.cpp @@ -0,0 +1,178 @@ +/* + * The ManaPlus Client + * Copyright (C) 2004-2009 The Mana World Development Team + * Copyright (C) 2009-2010 The Mana Developers + * Copyright (C) 2011-2013 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/>. + */ + +#ifdef USE_SDL2 + +#include "resources/surfaceimagehelper.h" + +#include "resources/dye.h" +#include "resources/resourcemanager.h" + +#include "client.h" +#include "logger.h" +#include "main.h" + +#include "resources/image.h" + +#include <SDL_image.h> + +#include "debug.h" + +bool SurfaceImageHelper::mEnableAlphaCache = false; + +Image *SurfaceImageHelper::load(SDL_RWops *const rw, Dye const &dye) const +{ + SDL_Surface *const tmpImage = loadPng(rw); + if (!tmpImage) + { + logger->log("Error, image load failed: %s", IMG_GetError()); + return nullptr; + } + + SDL_PixelFormat rgba; + rgba.palette = nullptr; + rgba.BitsPerPixel = 32; + rgba.BytesPerPixel = 4; + +#if SDL_BYTEORDER == SDL_BIG_ENDIAN + rgba.Rmask = 0x000000FF; + rgba.Gmask = 0x0000FF00; + rgba.Bmask = 0x00FF0000; + rgba.Amask = 0xFF000000; +#else + rgba.Rmask = 0xFF000000; + rgba.Gmask = 0x00FF0000; + rgba.Bmask = 0x0000FF00; + rgba.Amask = 0x000000FF; +#endif + + SDL_Surface *const surf = SDL_ConvertSurface( + tmpImage, &rgba, SDL_SWSURFACE); + SDL_FreeSurface(tmpImage); + + uint32_t *pixels = static_cast<uint32_t *>(surf->pixels); + const int type = dye.getType(); + + switch (type) + { + case 1: + { + const DyePalette *const pal = dye.getSPalete(); + if (pal) + pal->replaceSColor(pixels, surf->w * surf->h); + break; + } + case 2: + { + const DyePalette *const pal = dye.getAPalete(); + if (pal) + pal->replaceAColor(pixels, surf->w * surf->h); + break; + } + case 0: + default: + { + dye.normalDye(pixels, surf->w * surf->h); + break; + } + } + + Image *const image = load(surf); + SDL_FreeSurface(surf); + return image; +} + +Image *SurfaceImageHelper::load(SDL_Surface *const tmpImage) const +{ + return _SDLload(tmpImage); +} + +Image *SurfaceImageHelper::createTextSurface(SDL_Surface *const tmpImage, + const int width A_UNUSED, + const int height A_UNUSED, + const float alpha) const +{ + if (!tmpImage) + return nullptr; + + Image *img; + bool hasAlpha = false; + uint8_t *alphaChannel = nullptr; + SDL_Surface *image = SDLDuplicateSurface(tmpImage); + + img = new Image(image, hasAlpha, alphaChannel); + img->mAlpha = alpha; + return img; +} + +SDL_Surface* SurfaceImageHelper::SDLDuplicateSurface(SDL_Surface *const + tmpImage) +{ + if (!tmpImage || !tmpImage->format) + return nullptr; + + return SDL_ConvertSurface(tmpImage, tmpImage->format, SDL_SWSURFACE); +} + +Image *SurfaceImageHelper::_SDLload(SDL_Surface *tmpImage) const +{ + if (!tmpImage) + return nullptr; + + SDL_Surface *image = convertTo32Bit(tmpImage); + return new Image(image, false, nullptr); +} + +int SurfaceImageHelper::useOpenGL() const +{ + return 0; +} + +SDL_Surface *SurfaceImageHelper::create32BitSurface(int width, int height) const +{ +#if SDL_BYTEORDER == SDL_BIG_ENDIAN + const int rmask = 0xff000000; + const int gmask = 0x00ff0000; + const int bmask = 0x0000ff00; + const int amask = 0x000000ff; +#else + const int rmask = 0x000000ff; + const int gmask = 0x0000ff00; + const int bmask = 0x00ff0000; + const int amask = 0xff000000; +#endif + + return SDL_CreateRGBSurface(SDL_SWSURFACE, + width, height, 32, rmask, gmask, bmask, amask); +} + +int SurfaceImageHelper::combineSurface(SDL_Surface *const src, + SDL_Rect *const srcrect, + SDL_Surface *const dst, + SDL_Rect *const dstrect) +{ + SDL_SetSurfaceBlendMode (src, SDL_BLENDMODE_BLEND); + SDL_BlitSurface(src, srcrect, dst, dstrect); + return 1; +} + +#endif // USE_SDL2 |