Mercurial > hg > orthanc-stone
diff Applications/Sdl/SdlOrthancSurface.cpp @ 214:1c5a47dda299
SdlOrthancSurface
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Fri, 01 Jun 2018 18:33:34 +0200 |
parents | |
children | b70e9be013e4 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Applications/Sdl/SdlOrthancSurface.cpp Fri Jun 01 18:33:34 2018 +0200 @@ -0,0 +1,106 @@ +/** + * Stone of Orthanc + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, Belgium + * Copyright (C) 2017-2018 Osimis S.A., Belgium + * + * This program is free software: you can redistribute it and/or + * modify it under the terms of the GNU Affero 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 + * Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + **/ + + +#include "SdlOrthancSurface.h" + +#if ORTHANC_ENABLE_SDL == 1 + +#include <Core/Logging.h> +#include <Core/OrthancException.h> +#include <Core/Images/Image.h> + +namespace OrthancStone +{ + SdlOrthancSurface::SdlOrthancSurface(SdlWindow& window) : + window_(window), + sdlSurface_(NULL) + { + } + + + SdlOrthancSurface::~SdlOrthancSurface() + { + if (sdlSurface_) + { + SDL_FreeSurface(sdlSurface_); + } + } + + + void SdlOrthancSurface::SetSize(unsigned int width, + unsigned int height) + { + if (image_.get() == NULL || + image_->GetWidth() != width || + image_->GetHeight() != height) + { + image_.reset(new Orthanc::Image(Orthanc::PixelFormat_BGRA32, width, height, true)); // (*) + + if (image_->GetPitch() != image_->GetWidth() * 4) + { + // This should have been ensured by setting "forceMinimalPitch" to "true" (*) + throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); + } + + // TODO Big endian? + static const uint32_t rmask = 0x00ff0000; + static const uint32_t gmask = 0x0000ff00; + static const uint32_t bmask = 0x000000ff; + + if (sdlSurface_) + { + SDL_FreeSurface(sdlSurface_); + } + + sdlSurface_ = SDL_CreateRGBSurfaceFrom(image_->GetBuffer(), width, height, 32, + image_->GetPitch(), rmask, gmask, bmask, 0); + if (!sdlSurface_) + { + LOG(ERROR) << "Cannot create a SDL surface from a Orthanc surface"; + throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError); + } + } + } + + + Orthanc::ImageAccessor& SdlOrthancSurface::GetImage() + { + if (image_.get() == NULL) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); + } + + return *image_; + } + + + void SdlOrthancSurface::Render() + { + if (image_.get() == NULL) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); + } + + window_.Render(sdlSurface_); + } +} + +#endif