Mercurial > hg > orthanc-stone
annotate Applications/Resources/Graveyard/Threading/SdlBuffering.cpp @ 1630:78509230f0d7
SortedFrames sharing code with CoordinateSystem3D
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Mon, 09 Nov 2020 18:01:32 +0100 |
| parents | 4fb8fdf03314 |
| children | 9ac2a65d4172 |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
|
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
| 0 | 6 * |
| 7 * This program is free software: you can redistribute it and/or | |
| 47 | 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. | |
| 0 | 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 | |
| 47 | 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 * Affero General Public License for more details. | |
|
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16 * |
| 47 | 17 * You should have received a copy of the GNU Affero General Public License |
| 0 | 18 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 19 **/ | |
| 20 | |
| 21 | |
| 22 #include "SdlBuffering.h" | |
| 23 | |
| 24 #if ORTHANC_ENABLE_SDL == 1 | |
| 25 | |
| 84 | 26 #include "../../Resources/Orthanc/Core/Logging.h" |
| 27 #include "../../Resources/Orthanc/Core/OrthancException.h" | |
| 0 | 28 |
| 29 namespace OrthancStone | |
| 30 { | |
| 31 SdlBuffering::SdlBuffering() : | |
| 32 sdlSurface_(NULL), | |
| 33 pendingFrame_(false) | |
| 34 { | |
| 35 } | |
| 36 | |
| 37 | |
| 38 SdlBuffering::~SdlBuffering() | |
| 39 { | |
| 40 if (sdlSurface_) | |
| 41 { | |
| 42 SDL_FreeSurface(sdlSurface_); | |
| 43 } | |
| 44 } | |
| 45 | |
| 46 | |
| 47 void SdlBuffering::SetSize(unsigned int width, | |
| 48 unsigned int height, | |
| 49 IViewport& viewport) | |
| 50 { | |
| 51 boost::mutex::scoped_lock lock(mutex_); | |
| 52 | |
| 53 viewport.SetSize(width, height); | |
| 54 | |
| 55 if (offscreenSurface_.get() == NULL || | |
| 56 offscreenSurface_->GetWidth() != width || | |
| 57 offscreenSurface_->GetHeight() != height) | |
| 58 { | |
| 59 offscreenSurface_.reset(new CairoSurface(width, height)); | |
| 60 } | |
| 61 | |
| 62 if (onscreenSurface_.get() == NULL || | |
| 63 onscreenSurface_->GetWidth() != width || | |
| 64 onscreenSurface_->GetHeight() != height) | |
| 65 { | |
| 66 onscreenSurface_.reset(new CairoSurface(width, height)); | |
| 67 | |
| 68 // TODO Big endian? | |
| 69 static const uint32_t rmask = 0x00ff0000; | |
| 70 static const uint32_t gmask = 0x0000ff00; | |
| 71 static const uint32_t bmask = 0x000000ff; | |
| 72 | |
| 73 if (sdlSurface_) | |
| 74 { | |
| 75 SDL_FreeSurface(sdlSurface_); | |
| 76 } | |
| 77 | |
| 78 sdlSurface_ = SDL_CreateRGBSurfaceFrom(onscreenSurface_->GetBuffer(), width, height, 32, | |
| 79 onscreenSurface_->GetPitch(), rmask, gmask, bmask, 0); | |
| 80 if (!sdlSurface_) | |
| 81 { | |
| 82 LOG(ERROR) << "Cannot create a SDL surface from a Cairo surface"; | |
| 83 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); | |
| 84 } | |
| 85 } | |
| 86 | |
| 87 pendingFrame_ = false; | |
| 88 } | |
| 89 | |
| 90 | |
| 91 bool SdlBuffering::RenderOffscreen(IViewport& viewport) | |
| 92 { | |
| 93 boost::mutex::scoped_lock lock(mutex_); | |
| 94 | |
| 95 if (offscreenSurface_.get() == NULL) | |
| 96 { | |
| 97 return false; | |
| 98 } | |
| 99 | |
| 100 Orthanc::ImageAccessor target = offscreenSurface_->GetAccessor(); | |
| 101 | |
| 102 if (viewport.Render(target) && | |
| 103 !pendingFrame_) | |
| 104 { | |
| 105 pendingFrame_ = true; | |
| 106 return true; | |
| 107 } | |
| 108 else | |
| 109 { | |
| 110 return false; | |
| 111 } | |
| 112 } | |
| 113 | |
| 114 | |
| 115 void SdlBuffering::SwapToScreen(SdlWindow& window) | |
| 116 { | |
| 117 if (!pendingFrame_ || | |
| 118 offscreenSurface_.get() == NULL || | |
| 119 onscreenSurface_.get() == NULL) | |
| 120 { | |
| 121 return; | |
| 122 } | |
| 123 | |
| 124 { | |
| 125 boost::mutex::scoped_lock lock(mutex_); | |
| 126 onscreenSurface_->Copy(*offscreenSurface_); | |
| 127 } | |
| 128 | |
| 129 window.Render(sdlSurface_); | |
| 130 pendingFrame_ = false; | |
| 131 } | |
| 132 } | |
| 133 | |
| 134 #endif |