annotate Applications/Sdl/SdlWindow.cpp @ 879:12b591d5d63c am-dev

some Qt integration (wip)
author Alain Mazy <alain@mazy.be>
date Fri, 05 Jul 2019 14:52:43 +0200
parents 794278160a3f
children
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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b70e9be013e4 preparing for 2019
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5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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28956ed68280 agpl license
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #include "SdlWindow.h"
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23
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24 #if ORTHANC_ENABLE_SDL == 1
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25
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26 #include <Core/Logging.h>
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27 #include <Core/OrthancException.h>
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29 #ifdef WIN32
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30 #include <windows.h> // for SetProcessDpiAware
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31 #endif
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32 // WIN32
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33
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34 #include <SDL.h>
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35
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36 namespace OrthancStone
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37 {
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38 SdlWindow::SdlWindow(const char* title,
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39 unsigned int width,
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40 unsigned int height,
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41 bool enableOpenGl,
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42 bool allowDpiScaling) :
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43 maximized_(false)
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44 {
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45 // TODO Understand why, with SDL_WINDOW_OPENGL + MinGW32 + Release
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46 // build mode, the application crashes whenever the SDL window is
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47 // resized or maximized
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48
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49 uint32_t windowFlags, rendererFlags;
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50 if (enableOpenGl)
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51 {
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52 windowFlags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE;
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53 rendererFlags = SDL_RENDERER_ACCELERATED;
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54 }
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55 else
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56 {
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57 windowFlags = SDL_WINDOW_RESIZABLE;
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58 rendererFlags = SDL_RENDERER_SOFTWARE;
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59 }
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61 // TODO: probably required on MacOS X, too
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62 #if defined(WIN32) && (_WIN32_WINNT >= 0x0600)
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63 if (!allowDpiScaling)
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64 {
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65 // if we do NOT allow DPI scaling, it means an SDL pixel will be a real
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66 // monitor pixel. This is needed for high-DPI applications
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68 // Enable high-DPI support on Windows
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70 // THE FOLLOWING HAS BEEN COMMENTED OUT BECAUSE IT WILL CRASH UNDER
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71 // OLD WINDOWS VERSIONS
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72 // ADD THIS AT THE TOP TO ENABLE IT:
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73 //
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74 //#pragma comment(lib, "Shcore.lib") THIS IS ONLY REQUIRED FOR SetProcessDpiAwareness
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75 //#include <windows.h>
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76 //#include <ShellScalingAPI.h> THIS IS ONLY REQUIRED FOR SetProcessDpiAwareness
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77 //#include <comdef.h> THIS IS ONLY REQUIRED FOR SetProcessDpiAwareness
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78 // SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE);
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80 // This is supported on Vista+
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81 SetProcessDPIAware();
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82
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83 windowFlags |= SDL_WINDOW_ALLOW_HIGHDPI;
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84 }
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85 #endif
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86 // WIN32
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87
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88 window_ = SDL_CreateWindow(title,
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89 SDL_WINDOWPOS_UNDEFINED,
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90 SDL_WINDOWPOS_UNDEFINED,
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91 width, height, windowFlags);
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92
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93 if (window_ == NULL)
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94 {
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95 LOG(ERROR) << "Cannot create the SDL window: " << SDL_GetError();
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96 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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97 }
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98
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99 renderer_ = SDL_CreateRenderer(window_, -1, rendererFlags);
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100 if (!renderer_)
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101 {
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102 LOG(ERROR) << "Cannot create the SDL renderer: " << SDL_GetError();
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103 SDL_DestroyWindow(window_);
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104 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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105 }
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106 }
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107
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108
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109 SdlWindow::~SdlWindow()
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110 {
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111 if (renderer_ != NULL)
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112 {
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113 SDL_DestroyRenderer(renderer_);
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114 }
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115
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116 if (window_ != NULL)
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117 {
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118 SDL_DestroyWindow(window_);
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119 }
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120 }
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121
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122
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123 unsigned int SdlWindow::GetWidth() const
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124 {
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125 int w = -1;
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126 SDL_GetWindowSize(window_, &w, NULL);
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127
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128 if (w < 0)
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129 {
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130 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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131 }
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132 else
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133 {
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134 return static_cast<unsigned int>(w);
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135 }
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136 }
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137
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138
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139 unsigned int SdlWindow::GetHeight() const
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140 {
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141 int h = -1;
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142 SDL_GetWindowSize(window_, NULL, &h);
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143
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144 if (h < 0)
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145 {
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146 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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147 }
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148 else
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149 {
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150 return static_cast<unsigned int>(h);
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151 }
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152 }
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153
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154
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155 void SdlWindow::Render(SDL_Surface* surface)
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156 {
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157 //SDL_RenderClear(renderer_);
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158
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159 SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer_, surface);
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160 if (texture != NULL)
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161 {
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162 SDL_RenderCopy(renderer_, texture, NULL, NULL);
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163 SDL_DestroyTexture(texture);
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164 }
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165
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166 SDL_RenderPresent(renderer_);
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167 }
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168
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169
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170 void SdlWindow::ToggleMaximize()
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171 {
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172 if (maximized_)
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173 {
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174 SDL_RestoreWindow(window_);
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175 maximized_ = false;
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176 }
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177 else
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178 {
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179 SDL_MaximizeWindow(window_);
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180 maximized_ = true;
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181 }
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182 }
214
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183
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184
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185 void SdlWindow::GlobalInitialize()
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186 {
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187 if (SDL_Init(SDL_INIT_VIDEO) != 0)
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188 {
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189 LOG(ERROR) << "Cannot initialize SDL";
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190 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
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191 }
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192 }
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193
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194
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195 void SdlWindow::GlobalFinalize()
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196 {
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197 SDL_Quit();
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198 }
0
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199 }
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200
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201 #endif