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93 Commits

75 Branches

120 Tags

55 MiB

Tag: Branch: Tree: gsoc-anurag-2022-final

Commit Graph

Author	SHA1	Message	Date
Alexei Podtelezhnikov	6139f2b647	[bdf, pfr, psnames] Accelarate charmap searches. The binary searches within charmaps can be accelerated because they often contain dense continuous blocks of character codes. Within such blocks, you can predict matches based on misses. This method has been deployed in `bdf` since 0f122fef34; we only refactor it there. We now use it in `pfr` and `psnames`, which speeds up the unicode charmap access by about 50% in PFR and Type 1 fonts. * src/bdf/bdfdrivr.c (bdf_cmap_char_{index,next}): Refactor. * src/pfr/pfrcmap.c (pfr_cmap_char_{index,next}): Predict `mid` based on the mismatch distance. * src/psnames/psmodule.c (ps_unicodes_char_{index,next}): Ditto.	2 years ago
Dominik Röttsches	275b116b40	[sfnt] Support variable 'COLR' v1 `PaintVarSkew`. src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration values `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SKEW`, `FT_COLR_PAINTFORMAT_INTERNAL_SKEW_CENTER`, and `FT_COLR_PAINTFORMAT_INTERNAL_VAR_SKEW_CENTER`. (read_paint): Handle new enumeration values.	3 years ago

Author

SHA1

Message

Date

Alexei Podtelezhnikov

6139f2b647

[bdf, pfr, psnames] Accelarate charmap searches.

The binary searches within charmaps can be accelerated because they
often contain dense continuous blocks of character codes. Within such
blocks, you can predict matches based on misses.  This method has been
deployed in `bdf` since 0f122fef34; we only refactor it there.  We now
use it in `pfr` and `psnames`, which speeds up the unicode charmap
access by about 50% in PFR and Type 1 fonts.

* src/bdf/bdfdrivr.c (bdf_cmap_char_{index,next}): Refactor.
* src/pfr/pfrcmap.c (pfr_cmap_char_{index,next}): Predict `mid` based
on the mismatch distance.
* src/psnames/psmodule.c (ps_unicodes_char_{index,next}): Ditto.

2 years ago

Dominik Röttsches

275b116b40

[sfnt] Support variable 'COLR' v1 `PaintVarSkew*`.

* src/sfnt/ttcolr.c (FT_PaintFormat_Internal): New enumeration values
`FT_COLR_PAINTFORMAT_INTERNAL_VAR_SKEW`,
`FT_COLR_PAINTFORMAT_INTERNAL_SKEW_CENTER`, and
`FT_COLR_PAINTFORMAT_INTERNAL_VAR_SKEW_CENTER`.
(read_paint): Handle new enumeration values.

3 years ago

2 Commits (gsoc-anurag-2022-final)