--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Applications/Sdl/SdlOpenGLWindow.cpp	Fri Apr 26 15:11:11 2019 +0200
@@ -0,0 +1,87 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) 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
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#include "SdlOpenGLWindow.h"
+
+#if ORTHANC_ENABLE_SDL == 1
+
+#include <Core/OrthancException.h>
+
+namespace OrthancStone
+{
+  SdlOpenGLWindow::SdlOpenGLWindow(const char* title,
+                                   unsigned int width,
+                                   unsigned int height) :
+    window_(title, width, height, true /* enable OpenGL */)
+  {
+    context_ = SDL_GL_CreateContext(window_.GetObject());
+    
+    if (context_ == NULL)
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
+                                      "Cannot initialize OpenGL");
+    }
+  }
+
+  
+  SdlOpenGLWindow::~SdlOpenGLWindow()
+  {
+    SDL_GL_DeleteContext(context_);
+  }
+
+
+  void SdlOpenGLWindow::MakeCurrent()
+  {
+    if (SDL_GL_MakeCurrent(window_.GetObject(), context_) != 0)
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError,
+                                      "Cannot set current OpenGL context");
+    }
+
+    // This makes our buffer swap syncronized with the monitor's vertical refresh
+    SDL_GL_SetSwapInterval(1);
+  }
+
+  
+  void SdlOpenGLWindow::SwapBuffer()
+  {
+    // Swap our buffer to display the current contents of buffer on screen
+    SDL_GL_SwapWindow(window_.GetObject());
+  }
+
+  
+  unsigned int SdlOpenGLWindow::GetCanvasWidth()
+  {
+    int w = 0;
+    SDL_GL_GetDrawableSize(window_.GetObject(), &w, NULL);
+    return static_cast<unsigned int>(w);
+  }
+
+  
+  unsigned int SdlOpenGLWindow::GetCanvasHeight()
+  {
+    int h = 0;
+    SDL_GL_GetDrawableSize(window_.GetObject(), NULL, &h);
+    return static_cast<unsigned int>(h);
+  }
+}
+
+#endif