683 lines
21 KiB
C++
683 lines
21 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2014 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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// mapnik
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#include <mapnik/debug.hpp>
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#include <mapnik/image_reader.hpp>
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extern "C"
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{
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#include <tiffio.h>
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}
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// boost
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wunused-local-typedef"
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#include <boost/iostreams/device/file.hpp>
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#include <boost/iostreams/device/array.hpp>
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#include <boost/iostreams/stream.hpp>
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#pragma GCC diagnostic pop
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// stl
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#include <memory>
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namespace mapnik { namespace impl {
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static toff_t tiff_seek_proc(thandle_t handle, toff_t off, int whence)
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{
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std::istream* in = reinterpret_cast<std::istream*>(handle);
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switch(whence)
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{
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case SEEK_SET:
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in->seekg(off, std::ios_base::beg);
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break;
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case SEEK_CUR:
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in->seekg(off, std::ios_base::cur);
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break;
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case SEEK_END:
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in->seekg(off, std::ios_base::end);
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break;
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}
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return static_cast<toff_t>(in->tellg());
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}
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static int tiff_close_proc(thandle_t)
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{
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return 0;
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}
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static toff_t tiff_size_proc(thandle_t handle)
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{
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std::istream* in = reinterpret_cast<std::istream*>(handle);
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std::ios::pos_type pos = in->tellg();
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in->seekg(0, std::ios::end);
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std::ios::pos_type len = in->tellg();
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in->seekg(pos);
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return static_cast<toff_t>(len);
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}
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static tsize_t tiff_read_proc(thandle_t handle, tdata_t buf, tsize_t size)
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{
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std::istream * in = reinterpret_cast<std::istream*>(handle);
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std::streamsize request_size = size;
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if (static_cast<tsize_t>(request_size) != size)
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return static_cast<tsize_t>(-1);
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in->read(reinterpret_cast<char*>(buf), request_size);
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return static_cast<tsize_t>(in->gcount());
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}
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static tsize_t tiff_write_proc(thandle_t , tdata_t , tsize_t)
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{
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return 0;
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}
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static void tiff_unmap_proc(thandle_t, tdata_t, toff_t)
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{
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}
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static int tiff_map_proc(thandle_t, tdata_t* , toff_t*)
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{
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return 0;
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}
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}
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template <typename T>
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class tiff_reader : public image_reader
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{
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using tiff_ptr = std::shared_ptr<TIFF>;
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using source_type = T;
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using input_stream = boost::iostreams::stream<source_type>;
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struct tiff_closer
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{
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void operator() (TIFF * tif)
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{
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if (tif != 0)
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{
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TIFFClose(tif);
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}
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}
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};
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private:
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source_type source_;
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input_stream stream_;
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tiff_ptr tif_;
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int read_method_;
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int rows_per_strip_;
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int tile_width_;
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int tile_height_;
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std::size_t width_;
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std::size_t height_;
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boost::optional<box2d<double> > bbox_;
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unsigned bps_;
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unsigned photometric_;
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unsigned bands_;
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unsigned planar_config_;
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unsigned compression_;
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bool has_alpha_;
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bool is_tiled_;
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public:
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enum TiffType {
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generic=1,
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stripped,
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tiled
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};
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explicit tiff_reader(std::string const& file_name);
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tiff_reader(char const* data, std::size_t size);
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virtual ~tiff_reader();
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unsigned width() const final;
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unsigned height() const final;
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boost::optional<box2d<double> > bounding_box() const final;
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inline bool has_alpha() const final { return has_alpha_; }
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void read(unsigned x,unsigned y,image_rgba8& image) final;
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image_any read(unsigned x, unsigned y, unsigned width, unsigned height) final;
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// methods specific to tiff reader
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unsigned bits_per_sample() const { return bps_; }
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unsigned photometric() const { return photometric_; }
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bool is_tiled() const { return is_tiled_; }
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unsigned tile_width() const { return tile_width_; }
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unsigned tile_height() const { return tile_height_; }
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unsigned rows_per_strip() const { return rows_per_strip_; }
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unsigned planar_config() const { return planar_config_; }
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unsigned compression() const { return compression_; }
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private:
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tiff_reader(const tiff_reader&);
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tiff_reader& operator=(const tiff_reader&);
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void init();
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void read_generic(unsigned x,unsigned y,image_rgba8& image);
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void read_stripped(unsigned x,unsigned y,image_rgba8& image);
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template <typename ImageData>
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void read_tiled(unsigned x,unsigned y, ImageData & image);
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template <typename ImageData>
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image_any read_any_gray(unsigned x, unsigned y, unsigned width, unsigned height);
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TIFF* open(std::istream & input);
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};
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namespace
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{
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image_reader* create_tiff_reader(std::string const& file)
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{
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return new tiff_reader<boost::iostreams::file_source>(file);
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}
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image_reader* create_tiff_reader2(char const * data, std::size_t size)
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{
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return new tiff_reader<boost::iostreams::array_source>(data, size);
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}
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const bool registered = register_image_reader("tiff",create_tiff_reader);
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const bool registered2 = register_image_reader("tiff", create_tiff_reader2);
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}
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template <typename T>
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tiff_reader<T>::tiff_reader(std::string const& file_name)
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: source_(file_name, std::ios_base::in | std::ios_base::binary),
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stream_(source_),
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tif_(nullptr),
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read_method_(generic),
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rows_per_strip_(0),
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tile_width_(0),
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tile_height_(0),
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width_(0),
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height_(0),
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bps_(0),
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photometric_(0),
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bands_(1),
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planar_config_(PLANARCONFIG_CONTIG),
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compression_(COMPRESSION_NONE),
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has_alpha_(false),
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is_tiled_(false)
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{
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if (!stream_) throw image_reader_exception("TIFF reader: cannot open file "+ file_name);
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init();
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}
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template <typename T>
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tiff_reader<T>::tiff_reader(char const* data, std::size_t size)
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: source_(data, size),
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stream_(source_),
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tif_(nullptr),
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read_method_(generic),
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rows_per_strip_(0),
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tile_width_(0),
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tile_height_(0),
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width_(0),
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height_(0),
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bps_(0),
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photometric_(0),
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bands_(1),
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planar_config_(PLANARCONFIG_CONTIG),
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compression_(COMPRESSION_NONE),
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has_alpha_(false),
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is_tiled_(false)
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{
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if (!stream_) throw image_reader_exception("TIFF reader: cannot open image stream ");
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stream_.rdbuf()->pubsetbuf(0, 0);
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stream_.seekg(0, std::ios::beg);
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init();
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}
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template <typename T>
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void tiff_reader<T>::init()
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{
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// avoid calling TIFFs global structures
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TIFFSetWarningHandler(0);
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TIFFSetErrorHandler(0);
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TIFF* tif = open(stream_);
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if (!tif) throw image_reader_exception("Can't open tiff file");
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TIFFGetField(tif,TIFFTAG_BITSPERSAMPLE,&bps_);
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TIFFGetField(tif,TIFFTAG_PHOTOMETRIC,&photometric_);
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TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &bands_);
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MAPNIK_LOG_DEBUG(tiff_reader) << "bits per sample: " << bps_;
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MAPNIK_LOG_DEBUG(tiff_reader) << "photometric: " << photometric_;
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MAPNIK_LOG_DEBUG(tiff_reader) << "bands: " << bands_;
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TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &width_);
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TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &height_);
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TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &planar_config_);
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TIFFGetField(tif, TIFFTAG_COMPRESSION, &compression_ );
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TIFFGetField(tif, TIFFTAG_ROWSPERSTRIP, &rows_per_strip_);
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std::uint16_t orientation;
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if (TIFFGetField(tif, TIFFTAG_ORIENTATION, &orientation) == 0)
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{
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orientation = 1;
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}
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MAPNIK_LOG_DEBUG(tiff_reader) << "orientation: " << orientation;
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is_tiled_ = TIFFIsTiled(tif);
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if (is_tiled_)
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{
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TIFFGetField(tif, TIFFTAG_TILEWIDTH, &tile_width_);
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TIFFGetField(tif, TIFFTAG_TILELENGTH, &tile_height_);
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MAPNIK_LOG_DEBUG(tiff_reader) << "tiff is tiled";
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read_method_ = tiled;
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}
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else if (TIFFGetField(tif,TIFFTAG_ROWSPERSTRIP,&rows_per_strip_)!=0)
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{
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MAPNIK_LOG_DEBUG(tiff_reader) << "tiff is stripped";
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read_method_ = stripped;
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}
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//TIFFTAG_EXTRASAMPLES
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uint16 extrasamples = 0;
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uint16* sampleinfo = nullptr;
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if (TIFFGetField(tif, TIFFTAG_EXTRASAMPLES,
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&extrasamples, &sampleinfo))
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{
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has_alpha_ = true;
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if (extrasamples > 0 &&
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sampleinfo[0] == EXTRASAMPLE_UNSPECIFIED)
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{
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throw std::runtime_error("Unspecified provided for extra samples to tiff reader.");
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}
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}
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// Try extracting bounding box from geoTIFF tags
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{
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uint16 count = 0;
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double *pixelscale;
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double *tilepoint;
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if (TIFFGetField(tif, 33550, &count, &pixelscale) == 1 && count == 3
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&& TIFFGetField(tif, 33922 , &count, &tilepoint) == 1 && count == 6)
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{
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MAPNIK_LOG_DEBUG(tiff_reader) << "PixelScale:" << pixelscale[0] << "," << pixelscale[1] << "," << pixelscale[2];
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MAPNIK_LOG_DEBUG(tiff_reader) << "TilePoint:" << tilepoint[0] << "," << tilepoint[1] << "," << tilepoint[2];
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MAPNIK_LOG_DEBUG(tiff_reader) << " " << tilepoint[3] << "," << tilepoint[4] << "," << tilepoint[5];
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// assuming upper-left
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double lox = tilepoint[3];
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double loy = tilepoint[4];
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double hix = lox + pixelscale[0] * width_;
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double hiy = loy - pixelscale[1] * height_;
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bbox_.reset(box2d<double>(lox, loy, hix, hiy));
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MAPNIK_LOG_DEBUG(tiff_reader) << "Bounding Box:" << *bbox_;
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}
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}
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if (!is_tiled_ &&
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compression_ == COMPRESSION_NONE &&
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planar_config_ == PLANARCONFIG_CONTIG)
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{
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if (height_ > 128 * 1024 * 1024)
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{
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std::size_t line_size = (bands_ * width_ * bps_ + 7) / 8;
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std::size_t default_strip_height = 8192 / line_size;
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if (default_strip_height == 0) default_strip_height = 1;
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std::size_t num_strips = height_ / default_strip_height;
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if (num_strips > 128 * 1024 * 1024)
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{
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throw image_reader_exception("Can't allocate tiff");
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}
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}
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}
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}
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template <typename T>
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tiff_reader<T>::~tiff_reader()
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{
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}
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template <typename T>
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unsigned tiff_reader<T>::width() const
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{
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return width_;
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}
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template <typename T>
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unsigned tiff_reader<T>::height() const
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{
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return height_;
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}
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template <typename T>
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boost::optional<box2d<double> > tiff_reader<T>::bounding_box() const
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{
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return bbox_;
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}
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template <typename T>
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void tiff_reader<T>::read(unsigned x,unsigned y,image_rgba8& image)
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{
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if (read_method_==stripped)
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{
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read_stripped(x,y,image);
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}
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else if (read_method_==tiled)
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{
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read_tiled(x,y,image);
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}
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else
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{
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read_generic(x,y,image);
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}
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}
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template <typename T>
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template <typename ImageData>
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image_any tiff_reader<T>::read_any_gray(unsigned x0, unsigned y0, unsigned width, unsigned height)
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{
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using image_type = ImageData;
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using pixel_type = typename image_type::pixel_type;
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if (read_method_ == tiled)
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{
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image_type data(width,height);
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read_tiled<image_type>(x0, y0, data);
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return image_any(std::move(data));
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}
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else
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{
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TIFF* tif = open(stream_);
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if (tif)
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{
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image_type data(width, height);
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std::size_t block_size = rows_per_strip_ > 0 ? rows_per_strip_ : tile_height_ ;
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std::ptrdiff_t start_y = y0 - y0 % block_size;
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std::ptrdiff_t end_y = std::min(y0 + height, static_cast<unsigned>(height_));
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std::ptrdiff_t start_x = x0;
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std::ptrdiff_t end_x = std::min(x0 + width, static_cast<unsigned>(width_));
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std::size_t element_size = sizeof(pixel_type);
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std::size_t size_to_allocate = (TIFFScanlineSize(tif) + element_size - 1)/element_size;
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const std::unique_ptr<pixel_type[]> scanline(new pixel_type[size_to_allocate]);
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for (std::size_t y = start_y; y < end_y; ++y)
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{
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if (-1 != TIFFReadScanline(tif, scanline.get(), y) && (y >= y0))
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{
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pixel_type * row = data.getRow(y - y0);
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std::transform(scanline.get() + start_x, scanline.get() + end_x, row, [](pixel_type const& p) { return p;});
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}
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}
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return image_any(std::move(data));
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}
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}
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return image_any();
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}
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namespace detail {
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struct rgb8
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{
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std::uint8_t r;
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std::uint8_t g;
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std::uint8_t b;
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};
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struct rgb8_to_rgba8
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{
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std::uint32_t operator() (rgb8 const& in) const
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{
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return ((255 << 24) | (in.r) | (in.g << 8) | (in.b << 16));
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}
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};
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template <typename T>
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struct tiff_reader_traits
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{
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using image_type = T;
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using pixel_type = typename image_type::pixel_type;
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static bool read_tile(TIFF * tif, unsigned x, unsigned y, pixel_type* buf, std::size_t tile_width, std::size_t tile_height)
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{
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return (TIFFReadEncodedTile(tif, TIFFComputeTile(tif, x,y,0,0), buf, tile_width * tile_height * sizeof(pixel_type)) != -1);
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}
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};
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// default specialization that expands into RGBA
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template <>
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struct tiff_reader_traits<image_rgba8>
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{
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using pixel_type = std::uint32_t;
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static bool read_tile(TIFF * tif, unsigned x0, unsigned y0, pixel_type* buf, std::size_t tile_width, std::size_t tile_height)
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{
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if (TIFFReadRGBATile(tif, x0, y0, buf) != -1)
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{
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for (unsigned y = 0; y < tile_height/2; ++y)
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{
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std::swap_ranges(buf + y * tile_width, buf + (y + 1) * tile_width, buf + (tile_height - y - 1) * tile_width);
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}
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return true;
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}
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return false;
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}
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};
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}
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template <typename T>
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image_any tiff_reader<T>::read(unsigned x0, unsigned y0, unsigned width, unsigned height)
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{
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if (width > 10000 || height > 10000)
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{
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throw image_reader_exception("Can't allocate tiff > 10000x10000");
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}
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switch (photometric_)
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{
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case PHOTOMETRIC_MINISBLACK:
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case PHOTOMETRIC_MINISWHITE:
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{
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switch (bps_)
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{
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case 8:
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{
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return read_any_gray<image_gray8>(x0, y0, width, height);
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}
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case 16:
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{
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return read_any_gray<image_gray16>(x0, y0, width, height);
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}
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case 32:
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{
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return read_any_gray<image_gray32f>(x0, y0, width, height);
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}
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}
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}
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// read PHOTOMETRIC_RGB expand using RGBA interface
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/*
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case PHOTOMETRIC_RGB:
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{
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switch (bps_)
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{
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case 8:
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{
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TIFF* tif = open(stream_);
|
|
if (tif)
|
|
{
|
|
image_rgba8 data(width, height, true, premultiplied_alpha_);
|
|
std::size_t element_size = sizeof(detail::rgb8);
|
|
std::size_t size_to_allocate = (TIFFScanlineSize(tif) + element_size - 1)/element_size;
|
|
const std::unique_ptr<detail::rgb8[]> scanline(new detail::rgb8[size_to_allocate]);
|
|
std::ptrdiff_t start_y = y0 - y0 % rows_per_strip_;
|
|
std::ptrdiff_t end_y = std::min(y0 + height, static_cast<unsigned>(height_));
|
|
std::ptrdiff_t start_x = x0;
|
|
std::ptrdiff_t end_x = std::min(x0 + width, static_cast<unsigned>(width_));
|
|
for (std::size_t y = start_y; y < end_y; ++y)
|
|
{
|
|
if (-1 != TIFFReadScanline(tif, scanline.get(), y))
|
|
{
|
|
if (y >= y0)
|
|
{
|
|
image_rgba8::pixel_type * row = data.getRow(y - y0);
|
|
std::transform(scanline.get() + start_x, scanline.get() + end_x, row, detail::rgb8_to_rgba8());
|
|
}
|
|
}
|
|
}
|
|
return image_any(std::move(data));
|
|
}
|
|
return image_any();
|
|
}
|
|
case 16:
|
|
{
|
|
image_rgba8 data(width,height,true,premultiplied_alpha_);
|
|
read(x0, y0, data);
|
|
return image_any(std::move(data));
|
|
}
|
|
case 32:
|
|
{
|
|
image_rgba8 data(width,height,true,premultiplied_alpha_);
|
|
read(x0, y0, data);
|
|
return image_any(std::move(data));
|
|
}
|
|
}
|
|
}
|
|
*/
|
|
default:
|
|
{
|
|
//PHOTOMETRIC_PALETTE = 3;
|
|
//PHOTOMETRIC_MASK = 4;
|
|
//PHOTOMETRIC_SEPARATED = 5;
|
|
//PHOTOMETRIC_YCBCR = 6;
|
|
//PHOTOMETRIC_CIELAB = 8;
|
|
//PHOTOMETRIC_ICCLAB = 9;
|
|
//PHOTOMETRIC_ITULAB = 10;
|
|
//PHOTOMETRIC_LOGL = 32844;
|
|
//PHOTOMETRIC_LOGLUV = 32845;
|
|
image_rgba8 data(width,height, true, true);
|
|
read(x0, y0, data);
|
|
return image_any(std::move(data));
|
|
}
|
|
}
|
|
return image_any();
|
|
}
|
|
|
|
template <typename T>
|
|
void tiff_reader<T>::read_generic(unsigned, unsigned, image_rgba8& image)
|
|
{
|
|
TIFF* tif = open(stream_);
|
|
if (tif)
|
|
{
|
|
throw std::runtime_error("tiff_reader: TODO - tiff is not stripped or tiled");
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
template <typename ImageData>
|
|
void tiff_reader<T>::read_tiled(unsigned x0,unsigned y0, ImageData & image)
|
|
{
|
|
using pixel_type = typename detail::tiff_reader_traits<ImageData>::pixel_type;
|
|
|
|
TIFF* tif = open(stream_);
|
|
if (tif)
|
|
{
|
|
std::unique_ptr<pixel_type[]> buf(new pixel_type[tile_width_*tile_height_]);
|
|
int width = image.width();
|
|
int height = image.height();
|
|
int start_y = (y0 / tile_height_) * tile_height_;
|
|
int end_y = ((y0 + height) / tile_height_ + 1) * tile_height_;
|
|
int start_x = (x0 / tile_width_) * tile_width_;
|
|
int end_x = ((x0 + width) / tile_width_ + 1) * tile_width_;
|
|
end_y = std::min(end_y, int(height_));
|
|
end_x = std::min(end_x, int(width_));
|
|
|
|
for (int y = start_y; y < end_y; y += tile_height_)
|
|
{
|
|
int ty0 = std::max(y0, static_cast<unsigned>(y)) - y;
|
|
int ty1 = std::min(height + y0, static_cast<unsigned>(y + tile_height_)) - y;
|
|
|
|
for (int x = start_x; x < end_x; x += tile_width_)
|
|
{
|
|
if (!detail::tiff_reader_traits<ImageData>::read_tile(tif, x, y, buf.get(), tile_width_, tile_height_))
|
|
{
|
|
std::clog << "read_tile(...) failed at " << x << "/" << y << " for " << width_ << "/" << height_ << "\n";
|
|
break;
|
|
}
|
|
int tx0 = std::max(x0, static_cast<unsigned>(x));
|
|
int tx1 = std::min(width + x0, static_cast<unsigned>(x + tile_width_));
|
|
int row = y + ty0 - y0;
|
|
for (int ty = ty0; ty < ty1; ++ty, ++row)
|
|
{
|
|
image.setRow(row, tx0 - x0, tx1 - x0, &buf[ty * tile_width_ + tx0 - x]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
template <typename T>
|
|
void tiff_reader<T>::read_stripped(unsigned x0,unsigned y0,image_rgba8& image)
|
|
{
|
|
TIFF* tif = open(stream_);
|
|
if (tif)
|
|
{
|
|
image_rgba8 strip(width_,rows_per_strip_,false);
|
|
int width=image.width();
|
|
int height=image.height();
|
|
|
|
unsigned start_y=(y0/rows_per_strip_)*rows_per_strip_;
|
|
unsigned end_y=std::min(y0+height, static_cast<unsigned>(height_));
|
|
int tx0,tx1,ty0,ty1;
|
|
|
|
tx0=x0;
|
|
tx1=std::min(width+x0,static_cast<unsigned>(width_));
|
|
int row = 0;
|
|
for (unsigned y=start_y; y < end_y; y+=rows_per_strip_)
|
|
{
|
|
ty0 = std::max(y0,y)-y;
|
|
ty1 = std::min(end_y,y+rows_per_strip_)-y;
|
|
|
|
if (!TIFFReadRGBAStrip(tif,y,strip.getData()))
|
|
{
|
|
std::clog << "TIFFReadRGBAStrip failed at " << y << " for " << width_ << "/" << height_ << "\n";
|
|
break;
|
|
}
|
|
// This is in reverse becauase the TIFFReadRGBAStrip reads inverted
|
|
for (unsigned ty = ty1; ty > ty0; --ty)
|
|
{
|
|
image.setRow(row,tx0-x0,tx1-x0,&strip.getData()[(ty-1)*width_+tx0]);
|
|
++row;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
TIFF* tiff_reader<T>::open(std::istream & input)
|
|
{
|
|
if (!tif_)
|
|
{
|
|
tif_ = tiff_ptr(TIFFClientOpen("tiff_input_stream", "rcm",
|
|
reinterpret_cast<thandle_t>(&input),
|
|
impl::tiff_read_proc,
|
|
impl::tiff_write_proc,
|
|
impl::tiff_seek_proc,
|
|
impl::tiff_close_proc,
|
|
impl::tiff_size_proc,
|
|
impl::tiff_map_proc,
|
|
impl::tiff_unmap_proc), tiff_closer());
|
|
}
|
|
return tif_.get();
|
|
}
|
|
|
|
} // namespace mapnik
|