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comparison Applications/Sdl/SdlOrthancSurface.cpp @ 214:1c5a47dda299

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SdlOrthancSurface
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 01 Jun 2018 18:33:34 +0200
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children b70e9be013e4
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213:f753a7e15a73 214:1c5a47dda299
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2018 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 "SdlOrthancSurface.h"
23
24 #if ORTHANC_ENABLE_SDL == 1
25
26 #include <Core/Logging.h>
27 #include <Core/OrthancException.h>
28 #include <Core/Images/Image.h>
29
30 namespace OrthancStone
31 {
32 SdlOrthancSurface::SdlOrthancSurface(SdlWindow& window) :
33 window_(window),
34 sdlSurface_(NULL)
35 {
36 }
37
38
39 SdlOrthancSurface::~SdlOrthancSurface()
40 {
41 if (sdlSurface_)
42 {
43 SDL_FreeSurface(sdlSurface_);
44 }
45 }
46
47
48 void SdlOrthancSurface::SetSize(unsigned int width,
49 unsigned int height)
50 {
51 if (image_.get() == NULL ||
52 image_->GetWidth() != width ||
53 image_->GetHeight() != height)
54 {
55 image_.reset(new Orthanc::Image(Orthanc::PixelFormat_BGRA32, width, height, true)); // (*)
56
57 if (image_->GetPitch() != image_->GetWidth() * 4)
58 {
59 // This should have been ensured by setting "forceMinimalPitch" to "true" (*)
60 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
61 }
62
63 // TODO Big endian?
64 static const uint32_t rmask = 0x00ff0000;
65 static const uint32_t gmask = 0x0000ff00;
66 static const uint32_t bmask = 0x000000ff;
67
68 if (sdlSurface_)
69 {
70 SDL_FreeSurface(sdlSurface_);
71 }
72
73 sdlSurface_ = SDL_CreateRGBSurfaceFrom(image_->GetBuffer(), width, height, 32,
74 image_->GetPitch(), rmask, gmask, bmask, 0);
75 if (!sdlSurface_)
76 {
77 LOG(ERROR) << "Cannot create a SDL surface from a Orthanc surface";
78 throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
79 }
80 }
81 }
82
83
84 Orthanc::ImageAccessor& SdlOrthancSurface::GetImage()
85 {
86 if (image_.get() == NULL)
87 {
88 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
89 }
90
91 return *image_;
92 }
93
94
95 void SdlOrthancSurface::Render()
96 {
97 if (image_.get() == NULL)
98 {
99 throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
100 }
101
102 window_.Render(sdlSurface_);
103 }
104 }
105
106 #endif