pax_global_header 0000666 0000000 0000000 00000000064 14745206114 0014516 g ustar 00root root 0000000 0000000 52 comment=bfba76a39d2651719228841503b3a84cc5820362
libxisf-0.2.13/ 0000775 0000000 0000000 00000000000 14745206114 0013241 5 ustar 00root root 0000000 0000000 libxisf-0.2.13/.gitignore 0000664 0000000 0000000 00000001401 14745206114 0015225 0 ustar 00root root 0000000 0000000 # This file is used to ignore files which are generated
# ----------------------------------------------------------------------------
*~
*.autosave
*.a
*.core
*.moc
*.o
*.obj
*.orig
*.rej
*.so
*.so.*
*_pch.h.cpp
*_resource.rc
*.qm
.#*
*.*#
core
!core/
tags
.DS_Store
.directory
*.debug
Makefile*
*.prl
*.app
moc_*.cpp
ui_*.h
qrc_*.cpp
Thumbs.db
*.res
*.rc
/.qmake.cache
/.qmake.stash
# qtcreator generated files
*.pro.user*
CMakeLists.txt.user
# xemacs temporary files
*.flc
# Vim temporary files
.*.swp
# Visual Studio generated files
*.ib_pdb_index
*.idb
*.ilk
*.pdb
*.sln
*.suo
*.vcproj
*vcproj.*.*.user
*.ncb
*.sdf
*.opensdf
*.vcxproj
*vcxproj.*
# MinGW generated files
*.Debug
*.Release
# Python byte code
*.pyc
# Binaries
# --------
*.dll
*.exe
/build*
libxisf-0.2.13/CMakeLists.txt 0000664 0000000 0000000 00000011025 14745206114 0016000 0 ustar 00root root 0000000 0000000 cmake_minimum_required(VERSION 3.14)
project(libXISF VERSION 0.2.13 LANGUAGES CXX C
HOMEPAGE_URL https://gitea.nouspiro.space/nou/libXISF
DESCRIPTION "LibXISF is C++ library that can read and write XISF files produced by PixInsight.")
include(CMakeDependentOption)
set(CMAKE_INCLUDE_CURRENT_DIR ON)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_C_VISIBILITY_PRESET hidden)
set(CMAKE_CXX_VISIBILITY_PRESET hidden)
option(BUILD_SHARED_LIBS "Build using shared libraries" ON)
option(USE_BUNDLED_LIBS "Use bundled LZ4 PugiXML and Zlib. You can still exclude some" ON)
cmake_dependent_option(USE_BUNDLED_LZ4 "Use bundled LZ4" ON "USE_BUNDLED_LIBS" OFF)
cmake_dependent_option(USE_BUNDLED_PUGIXML "Use bundled PugiXML" ON "USE_BUNDLED_LIBS" OFF)
cmake_dependent_option(USE_BUNDLED_ZLIB "Use bundled Zlib" ON "USE_BUNDLED_LIBS" OFF)
find_package(PkgConfig)
if(USE_BUNDLED_LZ4)
list(APPEND THIRD_PARTY_SRC
lz4/lz4.c
lz4/lz4.h
lz4/lz4hc.c
lz4/lz4hc.h)
list(APPEND THIRD_PARTY_INCLUDE lz4)
else(USE_BUNDLED_LZ4)
pkg_check_modules(LZ4 liblz4 IMPORTED_TARGET REQUIRED)
endif(USE_BUNDLED_LZ4)
if(USE_BUNDLED_PUGIXML)
list(APPEND THIRD_PARTY_SRC pugixml/pugixml.cpp)
list(APPEND THIRD_PARTY_INCLUDE pugixml)
else(USE_BUNDLED_PUGIXML)
pkg_check_modules(PUGIXML pugixml IMPORTED_TARGET REQUIRED)
endif(USE_BUNDLED_PUGIXML)
if(USE_BUNDLED_ZLIB)
list(APPEND THIRD_PARTY_SRC
zlib/adler32.c
zlib/compress.c
zlib/crc32.c
zlib/deflate.c
zlib/gzclose.c
zlib/gzlib.c
zlib/gzread.c
zlib/gzwrite.c
zlib/inflate.c
zlib/infback.c
zlib/inftrees.c
zlib/inffast.c
zlib/trees.c
zlib/uncompr.c
zlib/zutil.c)
set(ZLIB_PC ${CMAKE_CURRENT_BINARY_DIR}/zlib.pc)
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/zlib/zlib.pc.cmakein ${ZLIB_PC} @ONLY)
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/zlib/zconf.h.cmakein ${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY)
list(APPEND THIRD_PARTY_INCLUDE zlib)
else(USE_BUNDLED_ZLIB)
pkg_check_modules(ZLIB zlib IMPORTED_TARGET REQUIRED)
endif(USE_BUNDLED_ZLIB)
add_library(XISF
bytearray.cpp
libXISF_global.h
libxisf.cpp
libxisf.h
streambuffer.cpp
streambuffer.h
utils.cpp
variant.cpp
${THIRD_PARTY_SRC}
)
if(USE_BUNDLED_LIBS)
target_include_directories(XISF PRIVATE ${THIRD_PARTY_INCLUDE})
if(NOT USE_BUNDLED_LZ4)
target_link_libraries(XISF PUBLIC PkgConfig::LZ4)
list(APPEND PC_LIBS_REQUIRE lz4)
endif(NOT USE_BUNDLED_LZ4)
if(NOT USE_BUNDLED_PUGIXML)
target_link_libraries(XISF PUBLIC PkgConfig::PUGIXML)
list(APPEND PC_LIBS_REQUIRE pugixml)
endif(NOT USE_BUNDLED_PUGIXML)
if(NOT USE_BUNDLED_ZLIB)
target_link_libraries(XISF PUBLIC PkgConfig::ZLIB)
list(APPEND PC_LIBS_REQUIRE zlib)
endif(NOT USE_BUNDLED_ZLIB)
else(USE_BUNDLED_LIBS)
target_link_libraries(XISF PUBLIC PkgConfig::LZ4 PkgConfig::PUGIXML PkgConfig::ZLIB)
list(APPEND PC_LIBS_REQUIRE lz4 pugixml zlib)
endif(USE_BUNDLED_LIBS)
set_target_properties(XISF PROPERTIES VERSION ${PROJECT_VERSION} SOVERSION ${PROJECT_VERSION_MAJOR})
pkg_check_modules(ZSTD libzstd IMPORTED_TARGET)
if(ZSTD_FOUND)
target_compile_definitions(XISF PRIVATE HAVE_ZSTD)
target_link_libraries(XISF PUBLIC PkgConfig::ZSTD)
endif(ZSTD_FOUND)
if(BUILD_SHARED_LIBS)
target_compile_definitions(XISF PRIVATE LIBXISF_LIBRARY)
else(BUILD_SHARED_LIBS)
target_compile_definitions(XISF PUBLIC LIBXISF_STATIC_LIB)
endif(BUILD_SHARED_LIBS)
set(XISF_PUBLIC_HEADERS libxisf.h libXISF_global.h)
include(GNUInstallDirs)
install(FILES ${XISF_PUBLIC_HEADERS} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libxisf.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
install(TARGETS XISF LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
list(JOIN PC_LIBS_REQUIRE ", " PC_REQUIRE_STR2)
if(NOT PC_REQUIRE_STR2 STREQUAL "")
string(REPLACE "lz4" "liblz4" PC_REQUIRE_STR ${PC_REQUIRE_STR2})
endif()
list(TRANSFORM PC_LIBS_REQUIRE PREPEND "-l")
list(JOIN PC_LIBS_REQUIRE " " PC_LIBS_STR)
configure_file(libxisf.pc.in libxisf.pc @ONLY)
#testing
enable_testing()
add_executable(LibXISFTest
test/main.cpp
test/benchmark.cpp)
target_link_libraries(LibXISFTest XISF)
add_test(NAME LibXISFTest COMMAND LibXISFTest)
add_test(NAME LibXISFTestRead COMMAND LibXISFTest "${CMAKE_CURRENT_LIST_DIR}/test/test.xisf")
add_test(NAME LibXISFTestReadLZ4 COMMAND LibXISFTest "${CMAKE_CURRENT_LIST_DIR}/test/test_lz4.xisf")
libxisf-0.2.13/LICENSE 0000664 0000000 0000000 00000104461 14745206114 0014254 0 ustar 00root root 0000000 0000000 GNU GENERAL PUBLIC LICENSE
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possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
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state the exclusion of warranty; and each file should have at least
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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.
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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.
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along with this program. If not, see .
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
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This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
.
libxisf-0.2.13/README.md 0000664 0000000 0000000 00000001300 14745206114 0014512 0 ustar 00root root 0000000 0000000 LibXISF
=========
LibXISF is C++ library that can read and write XISF files produced by [PixInsight](https://pixinsight.com/).
It implement [XISF 1.0 specification](https://pixinsight.com/doc/docs/XISF-1.0-spec/XISF-1.0-spec.html).
It is licensed under GPLv3 or later. To compile you will need C++17 compiler.
To compile simply run these commands
```
cmake -B build -S .
cmake --build build --parallel
cmake --install build
```
By default it use bundled libraries. If you wish to use external libraries you will may add
`-DUSE_BUNDLED_LIBS=Off` to first command. Then you will need *lz4 pkg-config pugixml zlib* installed.
You may also specify `-DBUILD_SHARED_LIBS=Off` if you want build static lib.
libxisf-0.2.13/bytearray.cpp 0000664 0000000 0000000 00000011376 14745206114 0015757 0 ustar 00root root 0000000 0000000 /************************************************************************
* LibXISF - library to load and save XISF files *
* Copyright (C) 2023 Dušan Poizl *
* *
* 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. *
* *
* 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 .*
************************************************************************/
#include "libxisf.h"
namespace LibXISF
{
void ByteArray::makeUnique()
{
if(!_data.unique())
_data = std::make_unique(_data->begin(), _data->end());
}
ByteArray::ByteArray(size_t size)
{
_data = std::make_shared>();
_data->resize(size);
}
ByteArray::ByteArray(const char *ptr) : ByteArray((size_t)0)
{
size_t len = std::strlen(ptr);
if(len)
{
_data->resize(len);
std::memcpy(data(), ptr, len);
}
}
ByteArray::ByteArray(const ByteArray &d)
{
_data = d._data;
}
char& ByteArray::operator[](size_t i)
{
makeUnique();
return (*_data)[i];
}
const char& ByteArray::operator[](size_t i) const
{
return (*_data)[i];
}
size_t ByteArray::size() const
{
return _data->size();
}
void ByteArray::resize(size_t newsize)
{
makeUnique();
_data->resize(newsize);
}
void ByteArray::append(char c)
{
_data->push_back(c);
}
void ByteArray::decodeBase64()
{
int i = 0;
Ptr tmp = std::make_unique();
uint8_t c4[4] = {0};
for(uint8_t c : *_data)
{
if(c >= 'A' && c <= 'Z')c4[i++] = c - 'A';
else if(c >= 'a' && c <= 'z')c4[i++] = c - 'a' + 26;
else if(c >= '0' && c <= '9')c4[i++] = c - '0' + 52;
else if(c == '+')c4[i++] = 62;
else if(c == '/')c4[i++] = 63;
if(i == 4)
{
tmp->push_back((c4[0] << 2) | (c4[1] >> 4));
tmp->push_back((c4[1] << 4) | (c4[2] >> 2));
tmp->push_back((c4[2] << 6) | c4[3]);
i = 0;
}
}
if(i > 1)tmp->push_back((c4[0] << 2) | (c4[1] >> 4));
if(i > 2)tmp->push_back((c4[1] << 4) | (c4[2] >> 2));
std::swap(_data, tmp);
}
void ByteArray::encodeBase64()
{
static const char *base64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
Ptr tmp = std::make_unique();
int i = 0;
uint8_t sextet[4] = {0};
for(uint8_t c : *_data)
{
switch(i)
{
case 0:
sextet[0] |= c >> 2 & 0x3f;
sextet[1] |= c << 4 & 0x3f;
i++;
break;
case 1:
sextet[1] |= c >> 4 & 0x3f;
sextet[2] |= c << 2 & 0x3f;
i++;
break;
case 2:
sextet[2] |= c >> 6 & 0x3f;
sextet[3] = c & 0x3f;
i = 0;
for(int o=0; o<4; o++)
tmp->push_back(base64[sextet[o]]);
std::memset(sextet, 0, sizeof(sextet));
break;
}
}
for(int o = 0; o <= i && i; o++)
tmp->push_back(base64[sextet[o]]);
if(tmp->size() % 4)
tmp->resize(tmp->size() + 4 - (tmp->size() % 4), '=');
std::swap(_data, tmp);
}
void ByteArray::encodeHex()
{
static const char *hex = "0123456789abcdef";
Ptr tmp = std::make_unique(_data->size() * 2);
for(size_t i = 0; i< _data->size(); i++)
{
uint8_t t = static_cast(_data->at(i));
(*tmp)[2*i + 0] = hex[(t & 0xf0) >> 4];
(*tmp)[2*i + 1] = hex[t & 0xf];
}
std::swap(_data, tmp);
}
void ByteArray::decodeHex()
{
auto toByte = [](char c) -> char
{
if(c >= '0' && c <= '9')
return c - '0';
if(c >= 'A' && c <= 'F')
return c - '7';
if(c >= 'a' && c <= 'f')
return c - 'W';
return 0;
};
Ptr tmp = std::make_unique(size() / 2);
for(size_t i = 0; i< tmp->size(); i++)
{
(*tmp)[i] = (toByte(_data->at(i*2)) << 4) | toByte(_data->at(i*2+1));
}
std::swap(_data, tmp);
}
}
libxisf-0.2.13/libXISF_global.h 0000664 0000000 0000000 00000003346 14745206114 0016200 0 ustar 00root root 0000000 0000000 /************************************************************************
* LibXISF - library to load and save XISF files *
* Copyright (C) 2023 Dušan Poizl *
* *
* 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. *
* *
* 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 .*
************************************************************************/
#ifndef LIBXISF_GLOBAL_H
#define LIBXISF_GLOBAL_H
#ifdef LIBXISF_STATIC_LIB
# define LIBXISF_EXPORT
#else
# if defined(LIBXISF_LIBRARY)
# ifdef WIN32
# define LIBXISF_EXPORT __declspec(dllexport)
# else
# define LIBXISF_EXPORT __attribute__((visibility("default")))
# endif
# else
# ifdef WIN32
# define LIBXISF_EXPORT __declspec(dllimport)
# else
# define LIBXISF_EXPORT __attribute__((visibility("default")))
# endif
# endif
#endif
#endif // LIBXISF_GLOBAL_H
libxisf-0.2.13/libxisf.cpp 0000664 0000000 0000000 00000143356 14745206114 0015421 0 ustar 00root root 0000000 0000000 /************************************************************************
* LibXISF - library to load and save XISF files *
* Copyright (C) 2023 Dušan Poizl *
* *
* 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. *
* *
* 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 .*
************************************************************************/
#include "libxisf.h"
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#ifdef HAVE_ZSTD
#include
#endif
#include "streambuffer.h"
namespace LibXISF
{
std::vector splitString(const std::string &str, char delimiter);
void deserializeVariant(const pugi::xml_node &node, Variant &variant, const ByteArray &data);
void serializeVariant(pugi::xml_node &node, const Variant &variant);
Variant variantFromString(Variant::Type type, const String &str);
static std::unordered_map imageTypeToEnum;
static std::unordered_map imageTypeToString;
static std::unordered_map sampleFormatToEnum;
static std::unordered_map sampleFormatToString;
static std::unordered_map colorSpaceToEnum;
static std::unordered_map colorSpaceToString;
static DataBlock::CompressionCodec compressionCodecOverride = DataBlock::None;
static bool byteShuffleOverride = false;
static int compressionLevelOverride = -1;
const size_t GiB = 1073741824;
static const std::unordered_map> fitsNameToPropertyIdTypeConvert = {
{"OBSERVER", {"Observer:Name", Variant::Type::String}},
{"RADECSYS", {"Observation:CelestialReferenceSystem", Variant::Type::String}},
{"CRVAL1", {"Observation:Center:Dec", Variant::Type::Float64}},
{"CRVAL2", {"Observation:Center:RA", Variant::Type::Float64}},
{"CRPIX1", {"Observation:Center:X", Variant::Type::Float64}},
{"CRPIX2", {"Observation:Center:Y", Variant::Type::Float64}},
{"EQUINOX", {"Observation:Equinox", Variant::Type::Float64}},
{"SITELAT", {"Observation:Location:Latitude", Variant::Type::Float64}},
{"SITELONG", {"Observation:Location:Longitude", Variant::Type::Float64}},
{"OBJECT", {"Observation:Object:Name", Variant::Type::String}},
{"DEC", {"Observation:Object:Dec", Variant::Type::Float64}},
{"RA", {"Observation:Object:RA", Variant::Type::Float64}},
{"DATE-OBS", {"Observation:Time:Start", Variant::Type::TimePoint}},
{"DATE-END", {"Observation:Time:End", Variant::Type::TimePoint}},
{"GAIN", {"Instrument:Camera:Gain", Variant::Type::Float32}},
{"ISOSPEED", {"Instrument:Camera:ISOSpeed", Variant::Type::Int32}},
{"INSTRUME", {"Instrument:Camera:Name", Variant::Type::String}},
{"ROTATANG", {"Instrument:Camera:Rotation", Variant::Type::Float32}},
{"XBINNING", {"Instrument:Camera:XBinning", Variant::Type::Int32}},
{"YBINNING", {"Instrument:Camera:YBinning", Variant::Type::Int32}},
{"EXPTIME", {"Instrument:ExposureTime", Variant::Type::Float32}},
{"FILTER", {"Instrument:Filter:Name", Variant::Type::String}},
{"FOCUSPOS", {"Instrument:Focuser:Position", Variant::Type::Float32}},
{"CCD-TEMP", {"Instrument:Sensor:Temperature", Variant::Type::Float32}},
{"APTDIA", {"Instrument:Telescope:Aperture", Variant::Type::Float32}},
{"FOCALLEN", {"Instrument:Telescope:FocalLength", Variant::Type::Float32}},
{"TELESCOP", {"Instrument:Telescope:Name", Variant::Type::String}},
};
static void byteShuffle(ByteArray &data, int itemSize)
{
if(itemSize > 1)
{
ByteArray &input = data;
ByteArray output(input.size());
size_t num = input.size() / itemSize;
char *s = output.data();
for(int i=0; i 1)
{
ByteArray &input = data;
ByteArray output(input.size());
size_t num = input.size() / itemSize;
const char *s = input.constData();
for(int i=0; i
void planarToNormal(void *_in, void *_out, size_t channels, size_t size)
{
T *in = static_cast(_in);
T *out = static_cast(_out);
for(size_t i=0; i
void normalToPlanar(void *_in, void *_out, size_t channels, size_t size)
{
T *in = static_cast(_in);
T *out = static_cast(_out);
for(size_t i=0; i& Image::imageProperties() const
{
return _properties;
}
void Image::addProperty(const Property &property)
{
if(_propertiesId.count(property.id))
throw Error("Duplicate property id");
_propertiesId[property.id] = _properties.size();
_properties.push_back(property);
}
void Image::updateProperty(const Property &property)
{
if(!_propertiesId.count(property.id))
addProperty(property);
else
_properties[_propertiesId[property.id]] = property;
}
const std::vector Image::fitsKeywords() const
{
return _fitsKeywords;
}
void Image::addFITSKeyword(const FITSKeyword &keyword)
{
_fitsKeywords.push_back(keyword);
}
bool Image::addFITSKeywordAsProperty(const String &name, const String &value)
{
if(fitsNameToPropertyIdTypeConvert.count(name))
{
auto &c = fitsNameToPropertyIdTypeConvert.at(name);
Property prop(c.first, variantFromString(c.second, value));
if(name == "APTDIA" || name == "FOCALLEN")
prop.value.value() /= 1000.0f;
updateProperty(prop);
return true;
}
return false;
}
const ByteArray &Image::iccProfile() const
{
return _iccProfile;
}
void Image::setIccProfile(const ByteArray &iccProfile)
{
_iccProfile = iccProfile;
}
void *Image::imageData()
{
return _dataBlock.data.size() ? _dataBlock.data.data() : nullptr;
}
const void *Image::imageData() const
{
return _dataBlock.data.size() ? _dataBlock.data.data() : nullptr;
}
size_t Image::imageDataSize() const
{
return _dataBlock.data.size();
}
DataBlock::CompressionCodec Image::compression() const
{
return _dataBlock.codec;
}
void Image::setCompression(DataBlock::CompressionCodec compression, int level)
{
_dataBlock.codec = compression;
_dataBlock.compressLevel = -1;
level = std::min(std::max(level, -1), 100);
auto percentToRange = [](int val, int min, int max)
{
double slope = (max - min) / 100.0;
return std::round(min + slope * val);
};
if(level >= 0)
{
switch(compression)
{
case DataBlock::CompressionCodec::Zlib:
_dataBlock.compressLevel = percentToRange(level, Z_BEST_SPEED, Z_BEST_COMPRESSION);
break;
case DataBlock::CompressionCodec::LZ4:
case DataBlock::CompressionCodec::LZ4HC:
_dataBlock.compressLevel = percentToRange(level, 1, LZ4HC_CLEVEL_MAX);
break;
case DataBlock::CompressionCodec::ZSTD:
#ifdef HAVE_ZSTD
_dataBlock.compressLevel = percentToRange(level, 0, ZSTD_maxCLevel());
#endif
break;
default:
//nothing
break;
}
}
}
bool Image::byteShuffling() const
{
return _dataBlock.byteShuffling;
}
void Image::setByteshuffling(bool enable)
{
_dataBlock.byteShuffling = enable ? sampleFormatSize(_sampleFormat) : 0;
}
void Image::convertPixelStorageTo(PixelStorage storage)
{
if(_pixelStorage == storage || _channelCount <= 1)
{
_pixelStorage = storage;
return;
}
ByteArray tmp;
tmp.resize(_dataBlock.data.size());
size_t size = _width*_height;
switch(_sampleFormat)
{
case UInt8:
if(storage == Normal)
planarToNormal(_dataBlock.data.data(), tmp.data(), _channelCount, size);
else
normalToPlanar(_dataBlock.data.data(), tmp.data(), _channelCount, size);
break;
case UInt16:
if(storage == Normal)
planarToNormal(_dataBlock.data.data(), tmp.data(), _channelCount, size);
else
normalToPlanar(_dataBlock.data.data(), tmp.data(), _channelCount, size);
break;
case UInt32:
case Float32:
if(storage == Normal)
planarToNormal(_dataBlock.data.data(), tmp.data(), _channelCount, size);
else
normalToPlanar(_dataBlock.data.data(), tmp.data(), _channelCount, size);
break;
case UInt64:
case Float64:
if(storage == Normal)
planarToNormal(_dataBlock.data.data(), tmp.data(), _channelCount, size);
else
normalToPlanar(_dataBlock.data.data(), tmp.data(), _channelCount, size);
break;
default:
break;
}
_dataBlock.data = tmp;
_pixelStorage = storage;
}
Image::Type Image::imageTypeEnum(const String &type)
{
auto t = imageTypeToEnum.find(type);
return t != imageTypeToEnum.end() ? t->second : Image::Light;
}
String Image::imageTypeString(Type type)
{
auto t = imageTypeToString.find(type);
return t != imageTypeToString.end() ? t->second : "Light";
}
Image::PixelStorage Image::pixelStorageEnum(const String &storage)
{
if(storage == "Normal")return Image::Normal;
return Image::Planar;
}
String Image::pixelStorageString(PixelStorage storage)
{
if(storage == Normal)return "Normal";
return "Planar";
}
Image::SampleFormat Image::sampleFormatEnum(const String &format)
{
auto t = sampleFormatToEnum.find(format);
return t != sampleFormatToEnum.end() ? t->second : Image::UInt16;
}
String Image::sampleFormatString(SampleFormat format)
{
auto t = sampleFormatToString.find(format);
return t != sampleFormatToString.end() ? t->second : "UInt16";
}
Image::ColorSpace Image::colorSpaceEnum(const String &colorSpace)
{
auto t = colorSpaceToEnum.find(colorSpace);
return t != colorSpaceToEnum.end() ? t->second : Image::Gray;
}
String Image::colorSpaceString(ColorSpace colorSpace)
{
auto t = colorSpaceToString.find(colorSpace);
return t != colorSpaceToString.end() ? t->second : "Gray";
}
size_t Image::sampleFormatSize(SampleFormat sampleFormat)
{
switch(sampleFormat)
{
case Image::UInt8: return sizeof(LibXISF::UInt8);
case Image::UInt16: return sizeof(LibXISF::UInt16);
case Image::UInt32: return sizeof(LibXISF::UInt32);
case Image::UInt64: return sizeof(LibXISF::UInt64);
case Image::Float32: return sizeof(LibXISF::Float32);
case Image::Float64: return sizeof(LibXISF::Float64);
case Image::Complex32: return sizeof(LibXISF::Complex32);
case Image::Complex64: return sizeof(LibXISF::Complex64);
}
return sizeof(UInt16);
}
class XISFReaderPrivate
{
public:
void open(const String &name);
void open(const ByteArray &data);
/** Open image from istream. This method takes ownership of *io pointer */
void open(std::istream *io);
/** Close opended file release all data. */
void close();
/** Return number of images inside file */
int imagesCount() const;
/** Return reference to Image
* @param n index of image
* @param readPixel when false it will read pixel data from file and imageData()
* will return nullptr */
const Image& getImage(uint32_t n, bool readPixels = true);
const Image& getThumbnail();
private:
void readXISFHeader();
void readSignature();
void parseCompression(const pugi::xml_node &node, DataBlock &dataBlock);
DataBlock parseDataBlock(const pugi::xml_node &node);
Property parseProperty(const pugi::xml_node &node);
FITSKeyword parseFITSKeyword(const pugi::xml_node &node);
ColorFilterArray parseCFA(const pugi::xml_node &node);
Image parseImage(const pugi::xml_node &node);
void readAttachment(DataBlock &dataBlock);
std::unique_ptr _io;
std::unique_ptr _buffer;
std::vector _images;
Image _thumbnail;
std::vector _properties;
};
void XISFReaderPrivate::open(const String &name)
{
close();
_io = std::make_unique(name.c_str(), std::ios_base::in | std::ios_base::binary);
readSignature();
readXISFHeader();
}
void XISFReaderPrivate::open(const ByteArray &data)
{
close();
_buffer = std::make_unique(data);
_io = std::make_unique(_buffer.get());
readSignature();
readXISFHeader();
}
void XISFReaderPrivate::open(std::istream *io)
{
close();
_io.reset(io);
readSignature();
readXISFHeader();
}
void XISFReaderPrivate::close()
{
_io.reset();
_buffer.reset();
_images.clear();
_properties.clear();
}
int XISFReaderPrivate::imagesCount() const
{
return _images.size();
}
const Image& XISFReaderPrivate::getImage(uint32_t n, bool readPixels)
{
if(n >= _images.size())
throw Error("Out of bounds");
Image &img = _images[n];
if(img._dataBlock.attachmentPos && readPixels)
{
readAttachment(img._dataBlock);
}
return img;
}
const Image &XISFReaderPrivate::getThumbnail()
{
Image &img = _thumbnail;
if(_thumbnail._dataBlock.attachmentPos)
{
_io->seekg(img._dataBlock.attachmentPos);
ByteArray data(img._dataBlock.attachmentSize);
_io->read(data.data(), data.size());
img._dataBlock.decompress(data);
}
return _thumbnail;
}
void XISFReaderPrivate::readXISFHeader()
{
uint32_t headerLen[2] = {0};
_io->read((char*)&headerLen, sizeof(headerLen));
ByteArray xisfHeader(headerLen[0]);
_io->read(xisfHeader.data(), headerLen[0]);
pugi::xml_document doc;
doc.load_buffer(xisfHeader.data(), xisfHeader.size());
pugi::xml_node root = doc.child("xisf");
if(root && root.attribute("version").as_string() == std::string("1.0"))
{
for(auto &image : root.children("Image"))
_images.push_back(parseImage(image));
for(auto &property : root.children("Property"))
_properties.push_back(parseProperty(property));
if(root.child("Thumbnail"))
_thumbnail = parseImage(root.child("Thumbnail"));
}
else throw Error("Unknown root XML element");
}
void XISFReaderPrivate::readSignature()
{
char signature[8];
_io->read(signature, sizeof(signature));
if(_io->fail())
throw Error("Failed to read from file");
if(memcmp(signature, "XISF0100", sizeof(signature)) != 0)
throw Error("Not valid XISF 1.0 file");
}
void XISFReaderPrivate::parseCompression(const pugi::xml_node &node, DataBlock &dataBlock)
{
std::vector compression = splitString(node.attribute("compression").as_string(), ':');
if(compression.size() >= 2)
{
if(compression[0].find("zlib") == 0)
dataBlock.codec = DataBlock::Zlib;
else if(compression[0].find("lz4hc") == 0)
dataBlock.codec = DataBlock::LZ4HC;
else if(compression[0].find("lz4") == 0)
dataBlock.codec = DataBlock::LZ4;
#ifdef HAVE_ZSTD
else if(compression[0].find("zstd") == 0)
dataBlock.codec = DataBlock::ZSTD;
#endif
else
throw Error("Unknown compression codec");
dataBlock.uncompressedSize = std::stoull(compression[1]);
if(compression[0].find("+sh") != std::string::npos)
{
if(compression.size() == 3)
dataBlock.byteShuffling = std::stoi(compression[2]);
else
throw Error("Missing byte shuffling size");
}
if(node.attribute("subblocks"))
{
std::vector subblocks = splitString(node.attribute("subblocks").as_string(), ':');
for(auto &block : subblocks)
{
size_t pos = 0;
size_t comp = std::stoull(block, &pos);
size_t deco = std::stoull(block.substr(pos+1));
dataBlock.subblocks.push_back({comp, deco});
}
}
}
}
DataBlock XISFReaderPrivate::parseDataBlock(const pugi::xml_node &node)
{
DataBlock dataBlock;
std::vector location = splitString(node.attribute("location").as_string(), ':');
parseCompression(node, dataBlock);
if(location.size() && location[0] == "embedded")
{
dataBlock.embedded = true;
}
else if(location.size() >= 2 && location[0] == "inline")
{
ByteArray text(node.text().as_string());
dataBlock.decompress(text, location[1]);
}
else if(location.size() >= 3 && location[0] == "attachment")
{
dataBlock.attachmentPos = std::stoull(location[1]);
dataBlock.attachmentSize = std::stoull(location[2]);
}
else
{
throw Error("Invalid data block");
}
if(dataBlock.embedded)
{
auto dataNode = node.child("Data");
if(dataNode)
{
parseCompression(dataNode, dataBlock);
String encoding = dataNode.attribute("encoding").as_string();
ByteArray text(dataNode.text().as_string());
dataBlock.decompress(text, encoding);
}
else
throw Error("Unexpected XML element");
}
return dataBlock;
}
Property XISFReaderPrivate::parseProperty(const pugi::xml_node &node)
{
Property property;
property.id = node.attribute("id").as_string();
property.comment = node.attribute("comment").as_string();
ByteArray data;
if(node.attribute("location"))
{
DataBlock dataBlock = parseDataBlock(node);
if(dataBlock.attachmentPos)
readAttachment(dataBlock);
data = dataBlock.data;
}
deserializeVariant(node, property.value, data);
return property;
}
FITSKeyword XISFReaderPrivate::parseFITSKeyword(const pugi::xml_node &node)
{
FITSKeyword fitsKeyword;
fitsKeyword.name = node.attribute("name").as_string();
fitsKeyword.value = node.attribute("value").as_string();
fitsKeyword.comment = node.attribute("comment").as_string();
return fitsKeyword;
}
ColorFilterArray XISFReaderPrivate::parseCFA(const pugi::xml_node &node)
{
ColorFilterArray cfa;
if(node.attribute("pattern") && node.attribute("width") && node.attribute("height"))
{
cfa.pattern = node.attribute("pattern").as_string();
cfa.width = node.attribute("width").as_int();
cfa.height = node.attribute("height").as_int();
}
else
{
throw Error("ColorFilterArray element missing one of mandatory attributes");
}
return cfa;
}
Image XISFReaderPrivate::parseImage(const pugi::xml_node &node)
{
Image image;
std::vector geometry = splitString(node.attribute("geometry").as_string(), ':');
if(geometry.size() != 3)throw Error("We support only 2D images");
image._width = std::stoull(geometry[0]);
image._height = std::stoull(geometry[1]);
image._channelCount = std::stoull(geometry[2]);
if(!image._width || !image._height || !image._channelCount)throw Error("Invalid image geometry");
std::vector bounds = splitString(node.attribute("bounds").as_string(), ':');
if(bounds.size() == 2)
{
image._bounds.first = std::stod(bounds[0]);
image._bounds.second = std::stod(bounds[1]);
}
image._imageType = Image::imageTypeEnum(node.attribute("imageType").as_string());
image._pixelStorage = Image::pixelStorageEnum(node.attribute("pixelStorage").as_string());
image._sampleFormat = Image::sampleFormatEnum(node.attribute("sampleFormat").as_string());
image._colorSpace = Image::colorSpaceEnum(node.attribute("colorSpace").as_string());
image._dataBlock = parseDataBlock(node);
for(auto &property : node.children("Property"))
image._properties.push_back(parseProperty(property));
for(auto &fitsKeyword : node.children("FITSKeyword"))
image._fitsKeywords.push_back(parseFITSKeyword(fitsKeyword));
if(node.child("ColorFilterArray"))
image._cfa = parseCFA(node.child("ColorFilterArray"));
if(node.child("ICCProfile"))
{
DataBlock icc = parseDataBlock(node.child("ICCProfile"));
if(icc.attachmentPos)
readAttachment(icc);
image._iccProfile = icc.data;
}
if(node.child("Thumbnail") && std::strcmp(node.name(), "Thumbnail"))
_thumbnail = parseImage(node.child("Thumbnail"));
return image;
}
void XISFReaderPrivate::readAttachment(DataBlock &dataBlock)
{
ByteArray data(dataBlock.attachmentSize);
_io->seekg(dataBlock.attachmentPos);
size_t size = dataBlock.attachmentSize;
char *ptr = data.data();
while(size > 0)
{
size_t s = std::min(size, GiB);
_io->read(ptr, s);
size -= s;
ptr += s;
}
dataBlock.decompress(data);
}
class XISFWriterPrivate
{
public:
void save(const String &name);
void save(ByteArray &data);
void save(std::ostream &io);
void writeImage(const Image &image);
static void writeFITSKeyword(pugi::xml_node &node, const FITSKeyword &keyword);
private:
void writeHeader();
void writeImageElement(pugi::xml_node &node, const Image &image);
void writeDataBlockAttributes(pugi::xml_node &image_node, const DataBlock &dataBlock);
void writePropertyElement(pugi::xml_node &node, const Property &property);
void writeMetadata(pugi::xml_node &node);
void updateImageAttachmentPos(pugi::xml_node &root, size_t offset);
ByteArray _xisfHeader;
ByteArray _attachmentsData;
std::vector _images;
};
void XISFWriterPrivate::save(const String &name)
{
std::ofstream fw(name.c_str(), std::ios_base::out | std::ios_base::binary);
if(fw.fail())
throw Error("Failed to open file");
save(fw);
}
void XISFWriterPrivate::save(ByteArray &data)
{
StreamBuffer buffer;
std::ostream oss(&buffer);
save(oss);
data = buffer.byteArray();
}
void XISFWriterPrivate::save(std::ostream &io)
{
writeHeader();
io.write(_xisfHeader.constData(), _xisfHeader.size());
for(auto &image : _images)
{
const char *ptr = image._dataBlock.data.constData();
size_t size = image._dataBlock.data.size();
while(size > 0)
{
size_t s = std::min(size, GiB);
io.write(ptr, s);
ptr += s;
size -= s;
}
}
}
void XISFWriterPrivate::writeImage(const Image &image)
{
_images.push_back(image);
_images.back()._dataBlock.attachmentPos = 1;
_images.back()._dataBlock.compress(image.sampleFormatSize(image.sampleFormat()));
}
void XISFWriterPrivate::writeHeader()
{
const char signature[16] = {'X', 'I', 'S', 'F', '0', '1', '0', '0', 0, 0, 0, 0, 0, 0, 0, 0};
pugi::xml_document doc;
doc.append_child(pugi::node_comment).set_value("\nExtensible Image Serialization Format - XISF version 1.0\nCreated with libXISF - https://nouspiro.space\n");
pugi::xml_node root = doc.append_child("xisf");
root.append_attribute("version").set_value("1.0");
root.append_attribute("xmlns").set_value("http://www.pixinsight.com/xisf");
root.append_attribute("xmlns:xsi").set_value("http://www.w3.org/2001/XMLSchema-instance");
root.append_attribute("xsi:schemaLocation").set_value("http://www.pixinsight.com/xisf http://pixinsight.com/xisf/xisf-1.0.xsd");
for(Image &image : _images)
{
writeImageElement(root, image);
}
writeMetadata(root);
uint32_t size = 0;
std::string header;
while(true)
{
std::stringstream xml;
xml.write(signature, sizeof(signature));
doc.save(xml, "", pugi::format_raw);
header = xml.str();
if(size != header.size())
{
size = header.size();
updateImageAttachmentPos(root, size);
}
else
{
break;
}
}
uint32_t headerSize = header.size() - sizeof(signature);
header.replace(8, sizeof(uint32_t), (const char*)&headerSize, sizeof(uint32_t));
_xisfHeader = ByteArray(header.c_str(), header.size());
}
void XISFWriterPrivate::writeImageElement(pugi::xml_node &node, const Image &image)
{
pugi::xml_node image_node = node.append_child("Image");
std::string geometry = std::to_string(image._width) + ":" + std::to_string(image._height) + ":" + std::to_string(image._channelCount);
image_node.append_attribute("geometry").set_value(geometry.c_str());
image_node.append_attribute("sampleFormat").set_value(Image::sampleFormatString(image._sampleFormat).c_str());
image_node.append_attribute("colorSpace").set_value(Image::colorSpaceString(image._colorSpace).c_str());
image_node.append_attribute("imageType").set_value(Image::imageTypeString(image._imageType).c_str());
image_node.append_attribute("pixelStorage").set_value(Image::pixelStorageString(image._pixelStorage).c_str());
if((image._sampleFormat == Image::Float32 || image._sampleFormat == Image::Float64) ||
image._bounds.first != 0.0 || image._bounds.second != 1.0)
{
std::string bounds = std::to_string(image._bounds.first) + ":" + std::to_string(image._bounds.second);
image_node.append_attribute("bounds").set_value(bounds.c_str());
}
writeDataBlockAttributes(image_node, image._dataBlock);
for(auto &property : image._properties)
writePropertyElement(image_node, property);
for(auto &fitsKeyword : image._fitsKeywords)
writeFITSKeyword(image_node, fitsKeyword);
if(image._cfa.width && image._cfa.height)
{
pugi::xml_node cfa_node = image_node.append_child("ColorFilterArray");
cfa_node.append_attribute("pattern").set_value(image._cfa.pattern.c_str());
cfa_node.append_attribute("width").set_value(image._cfa.width);
cfa_node.append_attribute("height").set_value(image._cfa.height);
}
if(image._iccProfile.size())
{
ByteArray base64 = image._iccProfile;
base64.encodeBase64();
base64.append('\0');
pugi::xml_node icc_node = image_node.append_child("ICCProfile");
icc_node.append_attribute("location").set_value("inline:base64");
icc_node.append_child(pugi::node_pcdata).set_value(base64.data());
}
}
void XISFWriterPrivate::writeDataBlockAttributes(pugi::xml_node &image_node, const DataBlock &dataBlock)
{
if(dataBlock.embedded)
{
image_node.append_attribute("location").set_value("embedded");
}
else if(dataBlock.attachmentPos == 0)
{
image_node.append_attribute("location").set_value("inline:base64");
}
else
{
std::string attachment = "attachment:";
if(dataBlock.attachmentPos == 0) attachment += "99999";
else attachment += std::to_string(dataBlock.attachmentPos);
attachment += ":" + std::to_string(dataBlock.data.size());
image_node.append_attribute("location").set_value(attachment.c_str());
}
std::string codec;
if(dataBlock.codec == DataBlock::Zlib)
codec = "zlib";
else if(dataBlock.codec == DataBlock::LZ4)
codec = "lz4";
else if(dataBlock.codec == DataBlock::LZ4HC)
codec = "lz4hc";
else if(dataBlock.codec == DataBlock::ZSTD)
#ifdef HAVE_ZSTD
codec = "zstd";
#else
throw Error("ZSTD support not compiled");
#endif
if(dataBlock.byteShuffling > 1)
codec += "+sh";
if(!codec.empty())
{
codec += ":" + std::to_string(dataBlock.uncompressedSize);
if(dataBlock.byteShuffling > 1)
codec += ":" + std::to_string(dataBlock.byteShuffling);
image_node.append_attribute("compression").set_value(codec.c_str());
}
if(!dataBlock.subblocks.empty())
{
std::string subblocks;
for(auto i = dataBlock.subblocks.begin(); i != dataBlock.subblocks.end(); i++)
{
if(i != dataBlock.subblocks.begin())
subblocks += ":";
subblocks += std::to_string(i->first) + "," + std::to_string(i->second);
}
image_node.append_attribute("subblocks").set_value(subblocks.c_str());
}
}
void XISFWriterPrivate::writePropertyElement(pugi::xml_node &node, const Property &property)
{
pugi::xml_node property_node = node.append_child("Property");
property_node.append_attribute("id").set_value(property.id.c_str());
serializeVariant(property_node, property.value);
if(!property.comment.empty())
property_node.append_attribute("comment").set_value(property.comment.c_str());
}
void XISFWriterPrivate::writeFITSKeyword(pugi::xml_node &node, const FITSKeyword &keyword)
{
pugi::xml_node fits_node = node.append_child("FITSKeyword");
fits_node.append_attribute("name").set_value(keyword.name.c_str());
fits_node.append_attribute("value").set_value(keyword.value.c_str());
fits_node.append_attribute("comment").set_value(keyword.comment.c_str());
}
void XISFWriterPrivate::writeMetadata(pugi::xml_node &node)
{
pugi::xml_node metadata = node.append_child("Metadata");
std::time_t t = std::time(nullptr);
std::tm tm = *std::gmtime(&t);
writePropertyElement(metadata, Property("XISF:CreationTime", tm));
writePropertyElement(metadata, Property("XISF:CreatorApplication", "LibXISF"));
}
void XISFWriterPrivate::updateImageAttachmentPos(pugi::xml_node &root, size_t offset)
{
pugi::xpath_node_set imageNodes = root.select_nodes("//Image");
int i = 0;
for(auto &image : _images)
{
pugi::xml_node node = imageNodes[i++].node();
std::string location = "attachment:" + std::to_string(offset) + ":" + std::to_string(image._dataBlock.data.size());
offset += image._dataBlock.data.size();
node.attribute("location").set_value(location.c_str());
}
}
XISFReader::XISFReader()
{
p = new XISFReaderPrivate;
}
XISFReader::~XISFReader()
{
delete p;
}
void XISFReader::open(const String &name)
{
p->open(name);
}
void XISFReader::open(const ByteArray &data)
{
p->open(data);
}
void XISFReader::open(std::istream *io)
{
p->open(io);
}
void XISFReader::close()
{
p->close();
}
int XISFReader::imagesCount() const
{
return p->imagesCount();
}
const Image &XISFReader::getImage(uint32_t n, bool readPixels)
{
return p->getImage(n, readPixels);
}
const Image &XISFReader::getThumbnail()
{
return p->getThumbnail();
}
XISFWriter::XISFWriter()
{
p = new XISFWriterPrivate;
}
XISFWriter::~XISFWriter()
{
delete p;
}
void XISFWriter::save(const String &name)
{
p->save(name);
}
void XISFWriter::save(ByteArray &data)
{
p->save(data);
}
void XISFWriter::save(std::ostream &io)
{
p->save(io);
}
void XISFWriter::writeImage(const Image &image)
{
p->writeImage(image);
}
class XISFModifyPrivate
{
public:
void open(const String &name);
void open(const ByteArray &data);
/** Open image from istream. This method takes ownership of *io pointer */
void open(std::istream *io);
/** Close opended file release all data. */
void close();
void save(const String &name);
void save(ByteArray &data);
void save(std::ostream &io);
void addFITSKeyword(uint32_t image, const FITSKeyword &keyword);
void updateFITSKeyword(uint32_t image, const FITSKeyword &keyword, bool add);
void removeFITSKeyword(uint32_t image, const String &name);
private:
void readXISFHeader();
void parseAttachmentPos(pugi::xml_node &root);
void updateAttachmentPos(pugi::xml_node &root, size_t offset);
std::unique_ptr _io;
std::unique_ptr _buffer;
pugi::xml_document _doc;
pugi::xml_node _root;
std::map> _attachmentPos;// pair contain position and size
std::map> _attachmentPosNew;
};
void XISFModifyPrivate::open(const String &name)
{
close();
_io = std::make_unique(name.c_str(), std::ios_base::in | std::ios_base::binary);
readXISFHeader();
}
void XISFModifyPrivate::open(const ByteArray &data)
{
close();
_buffer = std::make_unique(data);
_io = std::make_unique(_buffer.get());
readXISFHeader();
}
void XISFModifyPrivate::open(std::istream *io)
{
close();
_io.reset(io);
readXISFHeader();
}
void XISFModifyPrivate::close()
{
_io.reset();
_buffer.reset();
_root = pugi::xml_node();
_doc.reset();
}
void XISFModifyPrivate::save(const String &name)
{
std::ofstream fw(name.c_str(), std::ios_base::out | std::ios_base::binary);
if(fw.fail())
throw Error("Failed to open file");
save(fw);
}
void XISFModifyPrivate::save(ByteArray &data)
{
StreamBuffer buffer;
std::ostream oss(&buffer);
save(oss);
data = buffer.byteArray();
}
void XISFModifyPrivate::save(std::ostream &io)
{
if(!_io || !_root)
throw Error("No input file opened");
const char signature[16] = {'X', 'I', 'S', 'F', '0', '1', '0', '0', 0, 0, 0, 0, 0, 0, 0, 0};
pugi::xml_document doc;
doc.append_child(pugi::node_comment).set_value("\nExtensible Image Serialization Format - XISF version 1.0\nCreated with libXISF - https://nouspiro.space\n");
pugi::xml_node root_copy = doc.append_copy(_root);
uint32_t size = 0;
std::string header;
while(true)
{
std::stringstream xml;
xml.write(signature, sizeof(signature));
doc.save(xml, "", pugi::format_raw);
header = xml.str();
if(size != header.size())
{
size = header.size();
updateAttachmentPos(root_copy, size);
}
else
{
break;
}
}
uint32_t headerSize = header.size() - sizeof(signature);
header.replace(8, sizeof(uint32_t), (const char*)&headerSize, sizeof(uint32_t));
io.write(header.c_str(), header.size());
const uint64_t BLOCK_SIZE = 1024*1024*4;
std::vector data(BLOCK_SIZE);
for(auto &pos : _attachmentPos)
{
uint64_t oldPos = pos.second.first;
uint64_t size = pos.second.second;
_io->seekg(oldPos);
while(size)
{
_io->read(&data[0], std::min(size, BLOCK_SIZE));
io.write(&data[0], std::min(size, BLOCK_SIZE));
size -= std::min(size, BLOCK_SIZE);
}
}
}
void XISFModifyPrivate::addFITSKeyword(uint32_t image, const FITSKeyword &keyword)
{
if(!_root)
throw Error("No input file opened");
pugi::xpath_node_set images = _root.select_nodes("//Image");
if(image >= images.size())
throw Error("Out of bounds");
pugi::xml_node imageNode = images[image].node();
XISFWriterPrivate::writeFITSKeyword(imageNode, keyword);
}
void XISFModifyPrivate::updateFITSKeyword(uint32_t image, const FITSKeyword &keyword, bool add)
{
if(!_root)
throw Error("No input file opened");
pugi::xpath_node_set images = _root.select_nodes("//Image");
if(image >= images.size())
throw Error("Out of bounds");
pugi::xpath_variable_set variables;
variables.set("name", keyword.name.c_str());
pugi::xml_node imageNode = images[image].node();
pugi::xml_node keywordNode = imageNode.select_node("FITSKeyword[@name=string($name)]", &variables).node();
if(keywordNode)
{
if(keywordNode.attribute("value"))
keywordNode.attribute("value").set_value(keyword.value.c_str());
else
keywordNode.append_attribute("value").set_value(keyword.value.c_str());
if(keywordNode.attribute("comment"))
keywordNode.attribute("comment").set_value(keyword.comment.c_str());
else
keywordNode.append_attribute("comment").set_value(keyword.comment.c_str());
}
else if(add)
{
XISFWriterPrivate::writeFITSKeyword(imageNode, keyword);
}
}
void XISFModifyPrivate::removeFITSKeyword(uint32_t image, const String &name)
{
if(!_root)
throw Error("No input file opened");
pugi::xpath_node_set images = _root.select_nodes("//Image");
if(image >= images.size())
throw Error("Out of bounds");
pugi::xpath_variable_set variables;
variables.set("name", name.c_str());
pugi::xml_node imageNode = images[image].node();
pugi::xml_node keywordNode = imageNode.select_node("FITSKeyword[@name=string($name)]", &variables).node();
if(keywordNode)
imageNode.remove_child(keywordNode);
}
void XISFModifyPrivate::readXISFHeader()
{
char signature[8];
_io->read(signature, sizeof(signature));
if(_io->fail())
throw Error("Failed to read from file");
if(memcmp(signature, "XISF0100", sizeof(signature)) != 0)
throw Error("Not valid XISF 1.0 file");
uint32_t headerLen[2] = {0};
_io->read((char*)&headerLen, sizeof(headerLen));
ByteArray xisfHeader(headerLen[0]);
_io->read(xisfHeader.data(), headerLen[0]);
_doc.load_buffer(xisfHeader.data(), xisfHeader.size());
_root = _doc.child("xisf");
parseAttachmentPos(_root);
if(!_root || _root.attribute("version").as_string() != std::string("1.0"))
throw Error("Unknown root XML element");
}
void XISFModifyPrivate::parseAttachmentPos(pugi::xml_node &root)
{
pugi::xpath_node_set locationAttributes = root.select_nodes("//@location");
int i = 0;
for(auto &attr : locationAttributes)
{
std::string locationStr = attr.attribute().as_string();
std::vector location = splitString(locationStr, ':');
if(location.size() >= 3 && location[0] == "attachment")
{
uint64_t attachmentPos = std::stoull(location[1]);
uint64_t attachmentSize = std::stoull(location[2]);
_attachmentPos[i] = {attachmentPos, attachmentSize};
}
i++;
}
}
void XISFModifyPrivate::updateAttachmentPos(pugi::xml_node &root, size_t offset)
{
pugi::xpath_node_set locationAttributes = root.select_nodes("//@location");
for(auto &pos : _attachmentPos)
{
pugi::xml_attribute attr = locationAttributes[pos.first].attribute();
uint64_t attachmentSize = pos.second.second;
std::string locationStr = "attachment:" + std::to_string(offset) + ":" + std::to_string(attachmentSize);
_attachmentPosNew[pos.first] = pos.second;
offset += attachmentSize;
attr.set_value(locationStr.c_str());
}
}
XISFModify::XISFModify()
{
p = new XISFModifyPrivate();
}
XISFModify::~XISFModify()
{
delete p;
}
void XISFModify::open(const String &name)
{
p->open(name);
}
void XISFModify::open(const ByteArray &data)
{
p->open(data);
}
void XISFModify::open(std::istream *io)
{
p->open(io);
}
void XISFModify::close()
{
p->close();
}
void XISFModify::save(const String &name)
{
p->save(name);
}
void XISFModify::save(ByteArray &data)
{
p->save(data);
}
void XISFModify::save(std::ostream &io)
{
p->save(io);
}
void XISFModify::addFITSKeyword(uint32_t image, const FITSKeyword &keyword)
{
p->addFITSKeyword(image, keyword);
}
void XISFModify::updateFITSKeyword(uint32_t image, const FITSKeyword &keyword, bool add)
{
p->updateFITSKeyword(image, keyword, add);
}
void XISFModify::removeFITSKeyword(uint32_t image, const String &name)
{
p->removeFITSKeyword(image, name);
}
#define STRING_ENUM(map, map2, c, e) { map.insert({#e, c::e}); map2.insert({c::e, #e}); }
struct Init
{
Init()
{
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, Bias);
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, Dark);
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, Flat);
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, Light);
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, MasterBias);
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, MasterDark);
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, MasterFlat);
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, DefectMap);
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, RejectionMapHigh);
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, RejectionMapLow);
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, BinaryRejectionMapHigh);
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, BinaryRejectionMapLow);
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, SlopeMap);
STRING_ENUM(imageTypeToEnum, imageTypeToString, Image, WeightMap);
STRING_ENUM(sampleFormatToEnum, sampleFormatToString, Image, UInt8);
STRING_ENUM(sampleFormatToEnum, sampleFormatToString, Image, UInt16);
STRING_ENUM(sampleFormatToEnum, sampleFormatToString, Image, UInt32);
STRING_ENUM(sampleFormatToEnum, sampleFormatToString, Image, UInt64);
STRING_ENUM(sampleFormatToEnum, sampleFormatToString, Image, Float32);
STRING_ENUM(sampleFormatToEnum, sampleFormatToString, Image, Float64);
STRING_ENUM(sampleFormatToEnum, sampleFormatToString, Image, Complex32);
STRING_ENUM(sampleFormatToEnum, sampleFormatToString, Image, Complex64);
STRING_ENUM(colorSpaceToEnum, colorSpaceToString, Image, Gray);
STRING_ENUM(colorSpaceToEnum, colorSpaceToString, Image, RGB);
STRING_ENUM(colorSpaceToEnum, colorSpaceToString, Image, CIELab);
const char *compression_env = std::getenv("LIBXISF_COMPRESSION");
if(compression_env)
{
std::string compression = compression_env;
if(compression.find("zlib") == 0)
compressionCodecOverride = DataBlock::Zlib;
else if(compression.find("lz4hc") == 0)
compressionCodecOverride = DataBlock::LZ4HC;
else if(compression.find("lz4") == 0)
compressionCodecOverride = DataBlock::LZ4;
#ifdef HAVE_ZSTD
else if(compression.find("zstd") == 0)
compressionCodecOverride = DataBlock::ZSTD;
#endif
if(compression.find("+sh") != std::string::npos)
byteShuffleOverride = true;
int index = compression.find_last_of(":");
if(index > 0)
{
try { compressionLevelOverride = std::stoi(compression.substr(index + 1)); }
catch(...) { /* do nothing */ }
}
}
}
};
static Init init;
}
libxisf-0.2.13/libxisf.h 0000664 0000000 0000000 00000035311 14745206114 0015055 0 ustar 00root root 0000000 0000000 /************************************************************************
* LibXISF - library to load and save XISF files *
* Copyright (C) 2023 Dušan Poizl *
* *
* 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. *
* *
* 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 .*
************************************************************************/
#ifndef LIBXISF_H
#define LIBXISF_H
#include "libXISF_global.h"
#include
#include