135 lines
3.7 KiB
C++
135 lines
3.7 KiB
C++
/*
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* Copyright (C) 2015 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "RawImage.hpp"
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#include <magick/resource.h>
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#include "JPEGImage.hpp"
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#include "image/Exception.hpp"
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#include "core/ILogger.hpp"
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namespace lms::image
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{
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std::unique_ptr<IRawImage> decodeImage(const std::byte* encodedData, std::size_t encodedDataSize)
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{
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return std::make_unique<GraphicsMagick::RawImage>(encodedData, encodedDataSize);
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}
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std::unique_ptr<IRawImage> decodeImage(const std::filesystem::path& path)
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{
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return std::make_unique<GraphicsMagick::RawImage>(path);
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}
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void
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init(const std::filesystem::path& path)
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{
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Magick::InitializeMagick(path.string().c_str());
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if (auto nbThreads {MagickLib::GetMagickResourceLimit(MagickLib::ThreadsResource)}; nbThreads != 1)
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LMS_LOG(COVER, WARNING, "Consider setting env var OMP_NUM_THREADS=1 to save resources");
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if (!MagickLib::SetMagickResourceLimit(MagickLib::ThreadsResource, 1))
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LMS_LOG(COVER, ERROR, "Cannot set Magick thread resource limit to 1!");
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if (!MagickLib::SetMagickResourceLimit(MagickLib::DiskResource, 0))
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LMS_LOG(COVER, ERROR, "Cannot set Magick disk resource limit to 0!");
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LMS_LOG(COVER, INFO, "Magick threads resource limit = " << GetMagickResourceLimit(MagickLib::ThreadsResource));
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LMS_LOG(COVER, INFO, "Magick Disk resource limit = " << GetMagickResourceLimit(MagickLib::DiskResource));
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}
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}
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namespace lms::image::GraphicsMagick
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{
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RawImage::RawImage(const std::byte* encodedData, std::size_t encodedDataSize)
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{
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try
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{
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Magick::Blob blob {encodedData, encodedDataSize};
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_image.read(blob);
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}
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catch (Magick::WarningCoder& e)
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{
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LMS_LOG(COVER, WARNING, "Caught Magick WarningCoder: " << e.what());
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}
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catch (Magick::Warning& e)
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{
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LMS_LOG(COVER, WARNING, "Caught Magick warning: " << e.what());
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throw Exception {std::string {"Magick read warning: "} + e.what()};
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}
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catch (Magick::Exception& e)
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{
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LMS_LOG(COVER, ERROR, "Caught Magick exception: " << e.what());
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throw Exception {std::string {"Magick read error: "} + e.what()};
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}
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}
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RawImage::RawImage(const std::filesystem::path& p)
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{
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try
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{
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_image.read(p.string().c_str());
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}
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catch (Magick::WarningCoder& e)
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{
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LMS_LOG(COVER, WARNING, "Caught Magick WarningCoder: " << e.what());
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}
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catch (Magick::Warning& e)
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{
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LMS_LOG(COVER, WARNING, "Caught Magick warning: " << e.what());
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throw Exception {std::string {"Magick read warning: "} + e.what()};
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}
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catch (Magick::Exception& e)
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{
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LMS_LOG(COVER, ERROR, "Caught Magick exception: " << e.what());
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throw Exception {std::string {"Magick read error: "} + e.what()};
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}
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}
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void
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RawImage::resize(ImageSize width)
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{
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try
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{
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_image.resize(Magick::Geometry {static_cast<unsigned int>(width), static_cast<unsigned int>(width)});
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}
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catch (Magick::Exception& e)
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{
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LMS_LOG(COVER, ERROR, "Caught Magick exception while resizing: " << e.what());
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throw Exception {std::string {"Magick resize error: "} + e.what()};
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}
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}
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std::unique_ptr<IEncodedImage>
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RawImage::encodeToJPEG(unsigned quality) const
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{
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return std::make_unique<JPEGImage>(*this, quality);
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}
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Magick::Image
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RawImage::getMagickImage() const
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{
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return _image;
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}
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} // namespace lms::image::GraphicsMagick
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