annotate engine/core/video/fonts/subimagefont.cpp @ 697:ecaa4d98f05f tip

Abstracted the GUI code and refactored the GUIChan-specific code into its own module. * Most of the GUIChan code has been refactored into its own gui/guichan module. However, references to the GuiFont class still persist in the Engine and GuiManager code and these will need further refactoring. * GuiManager is now an abstract base class which specific implementations (e.g. GUIChan) should subclass. * The GUIChan GUI code is now a concrete implementation of GuiManager, most of which is in the new GuiChanGuiManager class. * The GUI code in the Console class has been refactored out of the Console and into the GUIChan module as its own GuiChanConsoleWidget class. The rest of the Console class related to executing commands was left largely unchanged. * Existing client code may need to downcast the GuiManager pointer received from FIFE::Engine::getGuiManager() to GuiChanGuiManager, since not all functionality is represented in the GuiManager abstract base class. Python client code can use the new GuiChanGuiManager.castTo static method for this purpose.
author M. George Hansen <technopolitica@gmail.com>
date Sat, 18 Jun 2011 00:28:40 -1000
parents ad7969d9460b
children
rev   line source
0
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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. *
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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 <string>
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24
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25 // Platform specific includes
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26 #include "util/base/fife_stdint.h"
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27
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28 // 3rd party library includes
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29 #include <SDL.h>
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30
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31 // FIFE includes
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32 // These includes are split up in two parts, separated by one empty line
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33 // First block: files included from the FIFE root src directory
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34 // Second block: files included from the same folder
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35 #include "util/base/exception.h"
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36 #include "util/log/logger.h"
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37 #include "util/structures/rect.h"
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38 #include "util/utf8/utf8.h"
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39 #include "video/image.h"
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40 #include "video/renderbackend.h"
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41 #include "video/imagepool.h"
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42
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43 #include "subimagefont.h"
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45 namespace FIFE {
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46 static Logger _log(LM_GUI);
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48 SubImageFont::SubImageFont(const std::string& filename, const std::string& glyphs, ImagePool& pool)
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49 : ImageFontBase(), m_pool(pool) {
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51 FL_LOG(_log, LMsg("guichan_image_font, loading ") << filename << " glyphs " << glyphs);
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52
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53 int image_id = m_pool.addResourceFromFile(filename);
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54 Image& img = dynamic_cast<Image&>(m_pool.get(image_id));
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55 SDL_Surface* surface = img.getSurface();
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56 m_colorkey = RenderBackend::instance()->getColorKey();
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57
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58 if( !surface ) {
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59 throw CannotOpenFile(filename);
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60 }
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61
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62 // Make sure we get 32bit RGB
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63 // and copy the Pixelbuffers surface
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64 SDL_Surface *tmp = SDL_CreateRGBSurface(SDL_SWSURFACE,
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65 surface->w,surface->h,32,
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66 RMASK, GMASK, BMASK ,NULLMASK);
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67
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68 SDL_BlitSurface(surface,0,tmp,0);
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69 surface = tmp;
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70
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71 // Prepare the data for extracting the glyphs.
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72 uint32_t *pixels = reinterpret_cast<uint32_t*>(surface->pixels);
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73
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74 int x, w;
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75 x = 0; w=0;
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76
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77 SDL_Rect src;
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78
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79 src.h = surface->h;
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80 src.y = 0;
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81
0
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82 uint32_t separator = pixels[0];
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83 uint32_t colorkey = SDL_MapRGB(surface->format, m_colorkey.r, m_colorkey.g, m_colorkey.b);
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84
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85 // if colorkey feature is not enabled then manually find the color key in the font
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86 if (!RenderBackend::instance()->isColorKeyEnabled()) {
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87 while(x < surface->w && pixels[x] == separator) {
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88 ++x;
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89 }
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90
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91 colorkey = pixels[x];
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92 }
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93
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94 // Disable alpha blending, so that we use color keying
ad7969d9460b A client can now specify a global color key to be used with all images. The default color key is (255,0,255) in RGB format. Also the client can enable/disable the color key feature by using the setColorKeyEnabled function in the EngineSettings class. By default the color key feature is disabled. fixes[t:451]
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 228
diff changeset
95 SDL_SetAlpha(surface,0,255);
ad7969d9460b A client can now specify a global color key to be used with all images. The default color key is (255,0,255) in RGB format. Also the client can enable/disable the color key feature by using the setColorKeyEnabled function in the EngineSettings class. By default the color key feature is disabled. fixes[t:451]
vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 228
diff changeset
96 SDL_SetColorKey(surface,SDL_SRCCOLORKEY,colorkey);
0
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97
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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98 FL_DBG(_log, LMsg("image_font")
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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99 << " glyph separator is "
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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100 << pprint(reinterpret_cast<void*>(separator))
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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101 << " transparent color is "
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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102 << pprint(reinterpret_cast<void*>(colorkey)));
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103
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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104 // Finally extract all glyphs
228
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 46
diff changeset
105 std::string::const_iterator text_it = glyphs.begin();
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 46
diff changeset
106 while(text_it != glyphs.end()) {
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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107 w=0;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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108 while(x < surface->w && pixels[x] == separator)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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109 ++x;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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110 if( x == surface->w )
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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111 break;
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112
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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113 while(x + w < surface->w && pixels[x + w] != separator)
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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114 ++w;
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115
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116 src.x = x;
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117 src.w = w;
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118
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119 tmp = SDL_CreateRGBSurface(SDL_SWSURFACE,
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120 w,surface->h,32,
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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121 RMASK, GMASK, BMASK ,NULLMASK);
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122
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123 SDL_FillRect(tmp,0,colorkey);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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124 SDL_BlitSurface(surface,&src,tmp,0);
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125
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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126 // Disable alpha blending, so that we use colorkeying
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127 SDL_SetAlpha(tmp,0,255);
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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128 SDL_SetColorKey(tmp,SDL_SRCCOLORKEY,colorkey);
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129
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130
228
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 46
diff changeset
131 uint32_t codepoint = utf8::next(text_it, glyphs.end());
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 46
diff changeset
132 m_glyphs[ codepoint ].surface = tmp;
0
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133
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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134 x += w;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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135 }
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136
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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137 // Set placeholder glyph
228
756b895e1dab Merged unicode-support back into trunk.
phoku@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 46
diff changeset
138 // This should actually work ith utf8.
0
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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139 if( m_glyphs.find('?') != m_glyphs.end() ) {
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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140 m_placeholder = m_glyphs['?'];
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141 } else {
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142 m_placeholder.surface = 0;
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143 }
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144
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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145 mHeight = surface->h;
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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146 SDL_FreeSurface(surface);
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147 }
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148
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149
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150 }
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151