Mercurial > hg > orthanc-webviewer
view Orthanc/Core/ImageFormats/ImageAccessor.cpp @ 46:bd68285248b7
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author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Thu, 30 Jul 2015 13:53:50 +0200 (2015-07-30) |
parents | 15acbf5e7545 |
children | 78aa0a355d3a |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2015 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 General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * In addition, as a special exception, the copyright holders of this * program give permission to link the code of its release with the * OpenSSL project's "OpenSSL" library (or with modified versions of it * that use the same license as the "OpenSSL" library), and distribute * the linked executables. You must obey the GNU General Public License * in all respects for all of the code used other than "OpenSSL". If you * modify file(s) with this exception, you may extend this exception to * your version of the file(s), but you are not obligated to do so. If * you do not wish to do so, delete this exception statement from your * version. If you delete this exception statement from all source files * in the program, then also delete it here. * * 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 * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "../PrecompiledHeaders.h" #include "ImageAccessor.h" #include "../OrthancException.h" #include "../ChunkedBuffer.h" #include <stdint.h> #include <cassert> #include <boost/lexical_cast.hpp> #if HAVE_GOOGLE_LOG == 1 #include <glog/logging.h> #endif namespace Orthanc { template <typename PixelType> static void ToMatlabStringInternal(ChunkedBuffer& target, const ImageAccessor& source) { target.AddChunk("double([ "); for (unsigned int y = 0; y < source.GetHeight(); y++) { const PixelType* p = reinterpret_cast<const PixelType*>(source.GetConstRow(y)); std::string s; if (y > 0) { s = "; "; } s.reserve(source.GetWidth() * 8); for (unsigned int x = 0; x < source.GetWidth(); x++, p++) { s += boost::lexical_cast<std::string>(static_cast<int>(*p)) + " "; } target.AddChunk(s); } target.AddChunk("])"); } static void RGB24ToMatlabString(ChunkedBuffer& target, const ImageAccessor& source) { assert(source.GetFormat() == PixelFormat_RGB24); target.AddChunk("double(permute(reshape([ "); for (unsigned int y = 0; y < source.GetHeight(); y++) { const uint8_t* p = reinterpret_cast<const uint8_t*>(source.GetConstRow(y)); std::string s; s.reserve(source.GetWidth() * 3 * 8); for (unsigned int x = 0; x < 3 * source.GetWidth(); x++, p++) { s += boost::lexical_cast<std::string>(static_cast<int>(*p)) + " "; } target.AddChunk(s); } target.AddChunk("], [ 3 " + boost::lexical_cast<std::string>(source.GetHeight()) + " " + boost::lexical_cast<std::string>(source.GetWidth()) + " ]), [ 3 2 1 ]))"); } void* ImageAccessor::GetBuffer() const { if (readOnly_) { #if HAVE_GOOGLE_LOG == 1 LOG(ERROR) << "Trying to write on a read-only image"; #endif throw OrthancException(ErrorCode_ReadOnly); } return buffer_; } const void* ImageAccessor::GetConstRow(unsigned int y) const { if (buffer_ != NULL) { return reinterpret_cast<const uint8_t*>(buffer_) + y * pitch_; } else { return NULL; } } void* ImageAccessor::GetRow(unsigned int y) const { if (readOnly_) { #if HAVE_GOOGLE_LOG == 1 LOG(ERROR) << "Trying to write on a read-only image"; #endif throw OrthancException(ErrorCode_ReadOnly); } if (buffer_ != NULL) { return reinterpret_cast<uint8_t*>(buffer_) + y * pitch_; } else { return NULL; } } void ImageAccessor::AssignEmpty(PixelFormat format) { readOnly_ = false; format_ = format; width_ = 0; height_ = 0; pitch_ = 0; buffer_ = NULL; } void ImageAccessor::AssignReadOnly(PixelFormat format, unsigned int width, unsigned int height, unsigned int pitch, const void *buffer) { readOnly_ = true; format_ = format; width_ = width; height_ = height; pitch_ = pitch; buffer_ = const_cast<void*>(buffer); assert(GetBytesPerPixel() * width_ <= pitch_); } void ImageAccessor::AssignWritable(PixelFormat format, unsigned int width, unsigned int height, unsigned int pitch, void *buffer) { readOnly_ = false; format_ = format; width_ = width; height_ = height; pitch_ = pitch; buffer_ = buffer; assert(GetBytesPerPixel() * width_ <= pitch_); } void ImageAccessor::ToMatlabString(std::string& target) const { ChunkedBuffer buffer; switch (GetFormat()) { case PixelFormat_Grayscale8: ToMatlabStringInternal<uint8_t>(buffer, *this); break; case PixelFormat_Grayscale16: ToMatlabStringInternal<uint16_t>(buffer, *this); break; case PixelFormat_SignedGrayscale16: ToMatlabStringInternal<int16_t>(buffer, *this); break; case PixelFormat_RGB24: RGB24ToMatlabString(buffer, *this); break; default: throw OrthancException(ErrorCode_NotImplemented); } buffer.Flatten(target); } }