* src/dense/ftdense.h: (FT26D6, FT20D12): New typedefs
* src/dense/ftdense.c: dense_render_line, dense_render_glyph now
use fixed-point numbers for calculation
Disabled SIMD for now
* src/dense/ftdense: Use SSE4.1 for final accumulation step
(FT_SSE4_1): Macro which checks if SSE4.1 is available
* src/dense/rules.mk: Enable linking for SSE4.1
Breakdown of what the files will contain
* src/dense/ftdenserend.c, src/dense/ftdenserend.h: The 'dense' renderer.
* src/dense/ftdense.c, src/dense/ftdense.h: The rasterizer for the
'dense' renderer.
* src/dense/ftdenseerrs.h: Common error defines.
* src/dense/dense.c: For building a single object of the entire module.
The values read into `base_glyphs_offset_v1` and `layer_offset_v1` may
be in the range 0xFFFFFFFD-0xFFFFFFFF. On systems where `unsigned long`
is 32 bits adding 4 to such values will wrap and pass bounds checks but
accessing values at such offsets will be out of bounds.
On the other hand `table_size` has already been tested to be at least
`COLRV1_HEADER_SIZE` (34) so it is safe to subtract 4 from it.
* src/sfnt/ttcolr.c (tt_face_load_colr): subtract 4 from `table_size`
instead of adding 4 to font data offsets in bounds checks
Fixes: https://crbug.com/1469348
Some types on OpenVMS x86_64 (for example, `long') have different sizes
depending on whether compiled with either C or C++. In particular,
X-Windows applications crash if linked with the C++ version.
This patch makes `vms_make.com` create a second version of the FreeType
library compiled with C++ if OpenVMS is running on the x86_64 platform.
In WOFF the `totalSfntSize` must be correct, however in WOFF2 this value
is now just a hint and a conforming implementation must not reject
otherwise valid data if the `totalSfntSize` turns out not to be exact.
* src/sfnt/sfwoff2.c (woff2_open_font): remove check that uncompressed
woff2 data would fit in the sfnt size guess.
Fixes: #1235
The CFF2 blend operator takes N default values and corresponding
sets of deltas and pushes N values specific to a designspace
location. CFF has a floating point numeric type and the FreeType
blending code was not converting those into its internal 16.16
Fixed type format.
Fixes#1243.
* src/cff/cffparse.c (do_fixed): Handle floating point numbers.
Also fix scaling overflow check for integer-to-fixed conversion.
* src/cff/cffload.c (cff_blend_doBlend): Updated.
This is a follow-up to commit 49c74ac02, which creates a new local variable
"exec = loader->exec", and shortening a lot of "loader->exec". This commit
does two more such changes missed in that first commit.
Signed-off-by: Hin-Tak Leung <htl10@users.sourceforge.net>
