Mercurial > hg > orthanc-stone
diff Applications/Sdl/SdlOpenGLWindow.cpp @ 595:6e471e6cf09b
CairoPolylineRenderer, SdlOpenGLWindow
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Fri, 26 Apr 2019 15:11:11 +0200 |
parents | |
children | 412a2d01a189 |
line wrap: on
line diff
--- /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