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LibGfx/TIFF: Add support for the IFD type

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As described in the first edition of the TIFF technical notes, the IFD
type is identical to Long (UnsignedLong) except that it only contains
offset of valid IFDs.

https://www.awaresystems.be/imaging/tiff/specification/TIFFPM6.pdf
This commit is contained in:
Lucas CHOLLET 2024-01-11 22:34:39 -05:00 • committed by Jelle Raaijmakers
parent 1de90bf55e
commit 1d0a762cdb
3 changed files with 7 additions and 1 deletions
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3
Userland/Libraries/LibGfx/TIFFGenerator.py
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@ -40,6 +40,7 @@ class TIFFType(EnumWithExportName):
SignedRational = 10, 8
Float = 11, 4
Double = 12, 8
IFD = 13, 4
UTF8 = 129, 1
@ -218,7 +219,7 @@ def tiff_type_to_cpp(t: TIFFType, with_promotion: bool = True) -> str:
return 'ByteBuffer'
if t == TIFFType.UnsignedShort:
return 'u16'
if t == TIFFType.UnsignedLong:
if t == TIFFType.UnsignedLong or t == TIFFType.IFD:
return 'u32'
if t == TIFFType.UnsignedRational:
return 'TIFF::Rational<u32>'