Mercurial > hg > orthanc-wsi
diff Framework/Outputs/PyramidWriterBase.cpp @ 0:4a7a53257c7d
initial commit
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Sat, 22 Oct 2016 21:48:33 +0200 |
parents | |
children | 7a88c614be04 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Framework/Outputs/PyramidWriterBase.cpp Sat Oct 22 21:48:33 2016 +0200 @@ -0,0 +1,150 @@ +/** + * Orthanc - A Lightweight, RESTful DICOM Store + * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics + * Department, University Hospital of Liege, 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 "PyramidWriterBase.h" + +#include "../ImageToolbox.h" +#include "../Orthanc/Core/OrthancException.h" +#include "../Orthanc/Core/Logging.h" + +namespace OrthancWSI +{ + PyramidWriterBase::Level PyramidWriterBase::GetLevel(unsigned int level) const + { + boost::mutex::scoped_lock lock(const_cast<PyramidWriterBase&>(*this).mutex_); + + if (level >= levels_.size()) + { + throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); + } + else + { + return levels_[level]; + } + } + + + PyramidWriterBase::PyramidWriterBase(Orthanc::PixelFormat pixelFormat, + ImageCompression compression, + unsigned int tileWidth, + unsigned int tileHeight) : + pixelFormat_(pixelFormat), + compression_(compression), + tileWidth_(tileWidth), + tileHeight_(tileHeight), + jpegQuality_(90), // Default JPEG quality + first_(true) + { + } + + + void PyramidWriterBase::SetJpegQuality(int quality) + { + if (quality <= 0 || quality > 100) + { + LOG(ERROR) << "The JPEG quality must be in range [1;100], but " << quality << " is provided"; + throw Orthanc::OrthancException(Orthanc::ErrorCode_ParameterOutOfRange); + } + + jpegQuality_ = quality; + } + + + void PyramidWriterBase::AddLevel(unsigned int width, + unsigned int height) + { + boost::mutex::scoped_lock lock(mutex_); + + if (!first_) + { + LOG(ERROR) << "Cannot add pyramid levels after some tile has already been written"; + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); + } + + if (!levels_.empty()) + { + const Level& previous = levels_[levels_.size() - 1]; + + if (width >= previous.width_ || + height >= previous.height_ || + width == 0 || + height == 0) + { + LOG(ERROR) << "Levels must have strictly decreasing sizes"; + throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls); + } + } + + Level level; + level.z_ = levels_.size(); + level.width_ = width; + level.height_ = height; + level.countTilesX_ = CeilingDivision(width, tileWidth_); + level.countTilesY_ = CeilingDivision(height, tileHeight_); + levels_.push_back(level); + + AddLevelInternal(level); + } + + + unsigned int PyramidWriterBase::GetLevelCount() const + { + boost::mutex::scoped_lock lock(const_cast<PyramidWriterBase&>(*this).mutex_); + return levels_.size(); + } + + + void PyramidWriterBase::WriteRawTile(const std::string& tile, + ImageCompression compression, + unsigned int z, + unsigned int x, + unsigned int y) + { + first_ = false; + + const Level level = GetLevel(z); + + if (compression != compression_) + { + std::string recoded; + ImageToolbox::ChangeTileCompression(recoded, tile, compression, compression_, jpegQuality_); + WriteRawTileInternal(recoded, level, x, y); + } + else + { + WriteRawTileInternal(tile, level, x, y); + } + } + + + void PyramidWriterBase::EncodeTile(const Orthanc::ImageAccessor& tile, + unsigned int z, + unsigned int x, + unsigned int y) + { + first_ = false; + + const Level level = GetLevel(z); + + std::string raw; + ImageToolbox::EncodeTile(raw, tile, compression_, jpegQuality_); + WriteRawTileInternal(raw, level, x, y); + } +}