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LibGfx/TIFF: Introduce a code generator

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This will allow us to generate code that handle and provide easy access
to metadata stored in TIFF's tags. The generator is a Python script, and
it output both TIFFMetadata.h and TIFFTagHandler.cpp files.

The generator will definitely need some update to support all TIFF and
EXIF tags, but that will still be easier than writing everything
ourselves.

Some small modifications are needed in TIFFLoader.cpp to make it
compatible with the new `Metadata` class.
This commit is contained in:
Lucas CHOLLET 2023-11-12 23:59:52 -05:00 • committed by Andrew Kaster
parent 8c65cc185a
commit 9836a9ad0e
5 changed files with 372 additions and 251 deletions
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20
Userland/Libraries/LibGfx/CMakeLists.txt
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@ -36,7 +36,6 @@ set(SOURCES
ImageFormats/BMPWriter.cpp
ImageFormats/BooleanDecoder.cpp
ImageFormats/TIFFLoader.cpp
ImageFormats/TIFFTagHandler.cpp
ImageFormats/DDSLoader.cpp
ImageFormats/GIFLoader.cpp
ImageFormats/ICOLoader.cpp
@ -79,3 +78,22 @@ set(SOURCES
serenity_lib(LibGfx gfx)
target_link_libraries(LibGfx PRIVATE LibCompress LibCore LibCrypto LibFileSystem LibTextCodec LibIPC LibUnicode)
set(generated_sources TIFFMetadata.h TIFFTagHandler.cpp)
list(TRANSFORM generated_sources PREPEND "ImageFormats/")
find_package(Python COMPONENTS Interpreter REQUIRED)
add_custom_command(
OUTPUT ${generated_sources}
COMMAND ${Python_EXECUTABLE} "${CMAKE_CURRENT_SOURCE_DIR}/TIFFGenerator.py" -o "${CMAKE_CURRENT_BINARY_DIR}/ImageFormats"
DEPENDS "TIFFGenerator.py"
VERBATIM
)
target_sources(LibGfx PRIVATE ${generated_sources})
add_custom_target(generate_tiff_files_handler DEPENDS ${generated_sources})
add_dependencies(all_generated generate_tiff_files_handler)
add_dependencies(LibGfx generate_tiff_files_handler)
list(TRANSFORM generated_sources PREPEND "${CMAKE_CURRENT_BINARY_DIR}/")
install(FILES ${generated_sources} DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/LibGfx/ImageFormats")