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comparison OrthancStone/Sources/Scene2D/Internals/OpenGLLookupTableTextureRenderer.cpp @ 1512:244ad1e4e76a

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reorganization of folders
author Sebastien Jodogne <s.jodogne@gmail.com>
date Tue, 07 Jul 2020 16:21:02 +0200
parents Framework/Scene2D/Internals/OpenGLLookupTableTextureRenderer.cpp@30deba7bc8e2
children 92fca2b3ba3d
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1511:9dfeee74c1e6 1512:244ad1e4e76a
1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 * Copyright (C) 2017-2020 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 "OpenGLLookupTableTextureRenderer.h"
23
24 #include "../../Toolbox/ImageToolbox.h"
25
26
27 #include <OrthancException.h>
28
29 namespace OrthancStone
30 {
31 namespace Internals
32 {
33 void OpenGLLookupTableTextureRenderer::LoadTexture(
34 const LookupTableTextureSceneLayer& layer)
35 {
36 if (!context_.IsContextLost())
37 {
38 const Orthanc::ImageAccessor& source = layer.GetTexture();
39 const unsigned int width = source.GetWidth();
40 const unsigned int height = source.GetHeight();
41
42 if (texture_.get() == NULL ||
43 texture_->GetWidth() != width ||
44 texture_->GetHeight() != height)
45 {
46 texture_.reset(new Orthanc::Image(Orthanc::PixelFormat_RGBA32, width, height, false));
47 }
48
49 layer.Render(*texture_);
50
51 context_.MakeCurrent();
52 glTexture_.reset(new OpenGL::OpenGLTexture(context_));
53 glTexture_->Load(*texture_, layer.IsLinearInterpolation());
54 layerTransform_ = layer.GetTransform();
55 }
56 }
57
58 OpenGLLookupTableTextureRenderer::OpenGLLookupTableTextureRenderer(
59 OpenGL::IOpenGLContext& context,
60 OpenGLColorTextureProgram& program,
61 const LookupTableTextureSceneLayer& layer)
62 : context_(context)
63 , program_(program)
64 {
65 LoadTexture(layer);
66 }
67
68
69 void OpenGLLookupTableTextureRenderer::Render(const AffineTransform2D& transform,
70 unsigned int canvasWidth,
71 unsigned int canvasHeight)
72 {
73 if (!context_.IsContextLost() && glTexture_.get() != NULL)
74 {
75 program_.Apply(
76 *glTexture_,
77 AffineTransform2D::Combine(transform, layerTransform_),
78 true);
79 }
80 }
81
82
83 void OpenGLLookupTableTextureRenderer::Update(const ISceneLayer& layer)
84 {
85 // Should never happen (no revisions in color textures)
86 LoadTexture(dynamic_cast<const LookupTableTextureSceneLayer&>(layer));
87 }
88 }
89 }