Mercurial > hg > orthanc-stone
view OrthancStone/Sources/Scene2D/Internals/OpenGLLookupTableTextureRenderer.cpp @ 1886:ca89fec8c48f
test
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 14 Jan 2022 19:10:30 +0100 |
parents | 7053b8a0aaec |
children | 07964689cb0b |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2022 Osimis S.A., Belgium * Copyright (C) 2021-2022 Sebastien Jodogne, ICTEAM UCLouvain, Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Lesser 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program. If not, see * <http://www.gnu.org/licenses/>. **/ #include "OpenGLLookupTableTextureRenderer.h" #include "../../Toolbox/ImageToolbox.h" #include <OrthancException.h> namespace OrthancStone { namespace Internals { void OpenGLLookupTableTextureRenderer::LoadTexture( const LookupTableTextureSceneLayer& layer) { if (!context_.IsContextLost()) { const Orthanc::ImageAccessor& source = layer.GetTexture(); const unsigned int width = source.GetWidth(); const unsigned int height = source.GetHeight(); if (texture_.get() == NULL || texture_->GetWidth() != width || texture_->GetHeight() != height) { texture_.reset(new Orthanc::Image(Orthanc::PixelFormat_RGBA32, width, height, false)); } layer.Render(*texture_); context_.MakeCurrent(); glTexture_.reset(new OpenGL::OpenGLTexture(context_)); glTexture_->Load(*texture_, layer.IsLinearInterpolation()); layerTransform_ = layer.GetTransform(); } } OpenGLLookupTableTextureRenderer::OpenGLLookupTableTextureRenderer( OpenGL::IOpenGLContext& context, OpenGLColorTextureProgram& program, const LookupTableTextureSceneLayer& layer) : context_(context) , program_(program) { LoadTexture(layer); } void OpenGLLookupTableTextureRenderer::Render(const AffineTransform2D& transform, unsigned int canvasWidth, unsigned int canvasHeight) { if (!context_.IsContextLost() && glTexture_.get() != NULL) { program_.Apply( *glTexture_, AffineTransform2D::Combine(transform, layerTransform_), canvasWidth, canvasHeight, true); } } void OpenGLLookupTableTextureRenderer::Update(const ISceneLayer& layer) { // Should never happen (no revisions in color textures) LoadTexture(dynamic_cast<const LookupTableTextureSceneLayer&>(layer)); } } }