/* * 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/>. */ #include "resources/imagehelper.h" #include "logger.h" #include "main.h" #include "utils/sdlcheckutils.h" #include <SDL_image.h> #include "debug.h" ImageHelper *imageHelper = nullptr; ImageHelper *surfaceImageHelper = nullptr; bool ImageHelper::mEnableAlpha = true; RenderType ImageHelper::mUseOpenGL = RENDER_SOFTWARE; Image *ImageHelper::load(SDL_RWops *const rw) const { SDL_Surface *const tmpImage = loadPng(rw); if (!tmpImage) { logger->log("Error, image load failed: %s", IMG_GetError()); return nullptr; } Image *const image = load(tmpImage); MSDL_FreeSurface(tmpImage); return image; } SDL_Surface* ImageHelper::convertTo32Bit(SDL_Surface *const tmpImage) { if (!tmpImage) return nullptr; SDL_PixelFormat RGBAFormat; RGBAFormat.palette = nullptr; #ifndef USE_SDL2 RGBAFormat.colorkey = 0; RGBAFormat.alpha = 0; #endif RGBAFormat.BitsPerPixel = 32; RGBAFormat.BytesPerPixel = 4; #if SDL_BYTEORDER == SDL_BIG_ENDIAN RGBAFormat.Rmask = 0xFF000000; RGBAFormat.Rshift = 0; RGBAFormat.Rloss = 0; RGBAFormat.Gmask = 0x00FF0000; RGBAFormat.Gshift = 8; RGBAFormat.Gloss = 0; RGBAFormat.Bmask = 0x0000FF00; RGBAFormat.Bshift = 16; RGBAFormat.Bloss = 0; RGBAFormat.Amask = 0x000000FF; RGBAFormat.Ashift = 24; RGBAFormat.Aloss = 0; #else RGBAFormat.Rmask = 0x000000FF; RGBAFormat.Rshift = 24; RGBAFormat.Rloss = 0; RGBAFormat.Gmask = 0x0000FF00; RGBAFormat.Gshift = 16; RGBAFormat.Gloss = 0; RGBAFormat.Bmask = 0x00FF0000; RGBAFormat.Bshift = 8; RGBAFormat.Bloss = 0; RGBAFormat.Amask = 0xFF000000; RGBAFormat.Ashift = 0; RGBAFormat.Aloss = 0; #endif return MSDL_ConvertSurface(tmpImage, &RGBAFormat, SDL_SWSURFACE); } void ImageHelper::dumpSurfaceFormat(const SDL_Surface *const image) const { if (image->format) { const SDL_PixelFormat * const format = image->format; logger->log("Bytes per pixel: %d", format->BytesPerPixel); #ifndef USE_SDL2 logger->log("Alpha: %d", format->alpha); #endif logger->log("Loss: %02x, %02x, %02x, %02x", static_cast<int>(format->Rloss), static_cast<int>(format->Gloss), static_cast<int>(format->Bloss), static_cast<int>(format->Aloss)); logger->log("Shift: %02x, %02x, %02x, %02x", static_cast<int>(format->Rshift), static_cast<int>(format->Gshift), static_cast<int>(format->Bshift), static_cast<int>(format->Ashift)); logger->log("Mask: %08x, %08x, %08x, %08x", format->Rmask, format->Gmask, format->Bmask, format->Amask); } } SDL_Surface *ImageHelper::loadPng(SDL_RWops *const rw) { if (!rw) return nullptr; if (!IMG_isPNG(rw)) { logger->log("Error, image is not png"); SDL_RWclose(rw); return nullptr; } SDL_Surface *const tmpImage = MIMG_LoadPNG_RW(rw); SDL_RWclose(rw); return tmpImage; }