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annotate engine/core/loaders/native/video_loaders/subimage_loader.cpp @ 526:c916d7b7de1c

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Added the goldstack image as I forgot to add it before.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Fri, 28 May 2010 04:15:56 +0000
parents 3804348fe3fb
children
rev   line source
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1 /***************************************************************************
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2 * Copyright (C) 2005-2008 by the FIFE team *
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3 * http://www.fifengine.de *
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4 * This file is part of FIFE. *
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5 * *
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6 * FIFE is free software; you can redistribute it and/or *
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7 * modify it under the terms of the GNU Lesser General Public *
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8 * License as published by the Free Software Foundation; either *
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9 * version 2.1 of the License, or (at your option) any later version. *
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10 * *
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11 * This library is distributed in the hope that it will be useful, *
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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14 * Lesser General Public License for more details. *
0
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15 * *
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16 * You should have received a copy of the GNU Lesser General Public *
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17 * License along with this library; if not, write to the *
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18 * Free Software Foundation, Inc., *
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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20 ***************************************************************************/
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21
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22 // Standard C++ library includes
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23 #include <iostream>
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24
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25 // 3rd party library includes
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26 #include <SDL.h>
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27 #include <boost/lexical_cast.hpp>
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28
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29 // FIFE includes
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30 // These includes are split up in two parts, separated by one empty line
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31 // First block: files included from the FIFE root src directory
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32 // Second block: files included from the same folder
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33 #include "video/image.h"
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34 #include "video/renderbackend.h"
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35 #include "video/image_location.h"
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36 #include "util/base/fife_stdint.h"
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37 #include "util/resource/resource.h"
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38 #include "util/base/exception.h"
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39 #include "util/log/logger.h"
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40
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41 #include "subimage_loader.h"
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42
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43 namespace FIFE {
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44 static Logger _log(LM_NATIVE_LOADERS);
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45
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46 IResource* SubImageLoader::loadResource(const ResourceLocation& location) {
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47 const ImageLocation* loc = dynamic_cast<const ImageLocation*>(&location);
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48 if (!loc) {
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49 // Wrong location type given for subimage provider
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50 return NULL;
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51 }
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52 Image* r = loc->getParentSource();
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53 if (!r) {
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54 // No parent source assigned, cannot provide subimage
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55 return NULL;
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56 }
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57 SDL_Surface* src = r->getSurface();
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58 if (!src) {
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59 return NULL;
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60 }
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61 SDL_Rect src_rect;
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62 src_rect.x = loc->getXShift();
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63 src_rect.y = loc->getYShift();
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64 src_rect.w = loc->getWidth();
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65 src_rect.h = loc->getHeight();
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66
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67 FL_DBG(_log, LMsg("subimage_loader")
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68 << " rect:" << Rect(src_rect.x,src_rect.y,src_rect.w,src_rect.h));
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69
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70 uint32_t Amask = src->format->Amask ? AMASK : 0;
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71 SDL_Surface* result = SDL_CreateRGBSurface(SDL_SWSURFACE, src_rect.w, src_rect.h, 32,
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72 RMASK, GMASK, BMASK, Amask);
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73 SDL_FillRect(result, NULL, 0);
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74 SDL_SetAlpha(src,0,SDL_ALPHA_OPAQUE);
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75 SDL_BlitSurface(src,&src_rect,result,0);
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76
239
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77 Image* image = RenderBackend::instance()->createImage(result);
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78 image->setResourceLocation(location);
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79 return image;
0
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80 };
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81
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82 }