Mercurial > hg > orthanc-stone
comparison Applications/Sdl/SdlOpenGLWindow.cpp @ 595:6e471e6cf09b
CairoPolylineRenderer, SdlOpenGLWindow
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 26 Apr 2019 15:11:11 +0200 |
parents | |
children | 412a2d01a189 |
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594:9807ed3d3e03 | 595:6e471e6cf09b |
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1 /** | |
2 * Stone of Orthanc | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
5 * Copyright (C) 2017-2019 Osimis S.A., Belgium | |
6 * | |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
22 #include "SdlOpenGLWindow.h" | |
23 | |
24 #if ORTHANC_ENABLE_SDL == 1 | |
25 | |
26 #include <Core/OrthancException.h> | |
27 | |
28 namespace OrthancStone | |
29 { | |
30 SdlOpenGLWindow::SdlOpenGLWindow(const char* title, | |
31 unsigned int width, | |
32 unsigned int height) : | |
33 window_(title, width, height, true /* enable OpenGL */) | |
34 { | |
35 context_ = SDL_GL_CreateContext(window_.GetObject()); | |
36 | |
37 if (context_ == NULL) | |
38 { | |
39 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError, | |
40 "Cannot initialize OpenGL"); | |
41 } | |
42 } | |
43 | |
44 | |
45 SdlOpenGLWindow::~SdlOpenGLWindow() | |
46 { | |
47 SDL_GL_DeleteContext(context_); | |
48 } | |
49 | |
50 | |
51 void SdlOpenGLWindow::MakeCurrent() | |
52 { | |
53 if (SDL_GL_MakeCurrent(window_.GetObject(), context_) != 0) | |
54 { | |
55 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError, | |
56 "Cannot set current OpenGL context"); | |
57 } | |
58 | |
59 // This makes our buffer swap syncronized with the monitor's vertical refresh | |
60 SDL_GL_SetSwapInterval(1); | |
61 } | |
62 | |
63 | |
64 void SdlOpenGLWindow::SwapBuffer() | |
65 { | |
66 // Swap our buffer to display the current contents of buffer on screen | |
67 SDL_GL_SwapWindow(window_.GetObject()); | |
68 } | |
69 | |
70 | |
71 unsigned int SdlOpenGLWindow::GetCanvasWidth() | |
72 { | |
73 int w = 0; | |
74 SDL_GL_GetDrawableSize(window_.GetObject(), &w, NULL); | |
75 return static_cast<unsigned int>(w); | |
76 } | |
77 | |
78 | |
79 unsigned int SdlOpenGLWindow::GetCanvasHeight() | |
80 { | |
81 int h = 0; | |
82 SDL_GL_GetDrawableSize(window_.GetObject(), NULL, &h); | |
83 return static_cast<unsigned int>(h); | |
84 } | |
85 } | |
86 | |
87 #endif |