1 /*************************************************************************** 2 * Copyright (c) 2017-2019 by the fifechan team * 3 * https://github.com/fifengine/fifechan * 4 * This file is part of fifechan. * 5 * * 6 * fifechan is free software; you can redistribute it and/or * 7 * modify it under the terms of the GNU Lesser General Public * 8 * License as published by the Free Software Foundation; either * 9 * version 2.1 of the License, or (at your option) any later version. * 10 * * 11 * This library is distributed in the hope that it will be useful, * 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 14 * Lesser General Public License for more details. * 15 * * 16 * You should have received a copy of the GNU Lesser General Public * 17 * License along with this library; if not, write to the * 18 * Free Software Foundation, Inc., * 19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * 20 ***************************************************************************/ 21 22 /* _______ __ __ __ ______ __ __ _______ __ __ 23 * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ 24 * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / 25 * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / 26 * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / 27 * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / 28 * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ 29 * 30 * Copyright (c) 2004 - 2008 Olof Naess�n and Per Larsson 31 * 32 * 33 * Per Larsson a.k.a finalman 34 * Olof Naess�n a.k.a jansem/yakslem 35 * 36 * Visit: http://guichan.sourceforge.net 37 * 38 * License: (BSD) 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in 46 * the documentation and/or other materials provided with the 47 * distribution. 48 * 3. Neither the name of Guichan nor the names of its contributors may 49 * be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 58 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 59 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 60 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 61 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 62 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 63 */ 64 65 /* 66 * For comments regarding functions please see the header file. 67 */ 68 69 #include "fifechan/sdl/sdlimage.hpp" 70 71 #include "SDL_image.h" 72 73 #include "fifechan/exception.hpp" 74 #include "fifechan/sdl/sdlimageloader.hpp" 75 76 namespace fcn 77 { load(const std::string & filename,bool convertToDisplayFormat)78 Image* SDLImageLoader::load(const std::string& filename, 79 bool convertToDisplayFormat) 80 { 81 SDL_Surface *loadedSurface = loadSDLSurface(filename); 82 83 if (loadedSurface == NULL) 84 { 85 throw FCN_EXCEPTION( 86 std::string("Unable to load image file: ") + filename); 87 } 88 89 SDL_Surface *surface = convertToStandardFormat(loadedSurface); 90 SDL_FreeSurface(loadedSurface); 91 92 if (surface == NULL) 93 { 94 throw FCN_EXCEPTION( 95 std::string("Not enough memory to load: ") + filename); 96 } 97 98 Image *image = new SDLImage(surface, true); 99 100 if (convertToDisplayFormat) 101 { 102 image->convertToDisplayFormat(); 103 } 104 105 return image; 106 } 107 loadSDLSurface(const std::string & filename)108 SDL_Surface* SDLImageLoader::loadSDLSurface(const std::string& filename) 109 { 110 return IMG_Load(filename.c_str()); 111 } 112 convertToStandardFormat(SDL_Surface * surface)113 SDL_Surface* SDLImageLoader::convertToStandardFormat(SDL_Surface* surface) 114 { 115 Uint32 rmask, gmask, bmask, amask; 116 #if SDL_BYTEORDER == SDL_BIG_ENDIAN 117 rmask = 0xff000000; 118 gmask = 0x00ff0000; 119 bmask = 0x0000ff00; 120 amask = 0x000000ff; 121 #else 122 rmask = 0x000000ff; 123 gmask = 0x0000ff00; 124 bmask = 0x00ff0000; 125 amask = 0xff000000; 126 #endif 127 128 SDL_Surface *colorSurface = SDL_CreateRGBSurface(SDL_SWSURFACE, 129 0, 0, 32, 130 rmask, gmask, bmask, amask); 131 132 SDL_Surface *tmp = NULL; 133 134 if (colorSurface != NULL) 135 { 136 tmp = SDL_ConvertSurface(surface, colorSurface->format, 137 SDL_SWSURFACE); 138 SDL_FreeSurface(colorSurface); 139 } 140 141 return tmp; 142 } 143 getSDLPixelFormat()144 const SDL_PixelFormat& SDLImageLoader::getSDLPixelFormat() { 145 return mPixelFormat; 146 } 147 setSDLPixelFormat(const SDL_PixelFormat & format)148 void SDLImageLoader::setSDLPixelFormat(const SDL_PixelFormat& format) { 149 mPixelFormat = format; 150 } 151 } 152