Since this font driver is by default enabled in `modules.cfg` and its
availability controlled by `FT_CONFIG_OPTION_HVF`, we need to provide some
stubs so that HVF fonts can be correctly rejected if there is no HVF library
available.
Fixes issue #1409.
* src/hvf/hvfdrv.c (hvf_driver_class): Provide `hvf_face_init` and
`hvf_slot_load_glyph` unconditionally.
* src/hvf/hvfload.c, src/hvf/hvfload.h (hvf_slot_load_glyph)
[!FT_CONFIG_OPTION_HVF]: Define stub.
* src/hvf/hvfobjs.c, src/hvf/hvfobjs.h (hvf_face_init)
[!FT_CONFIG_OPTION_HVF]: Define stub.
The new 'hvf' module is a thin wrapper around 'libhvf' with the necessary
boilerplate stuff to integrate it into FreeType. Note that this currently
works on macOS >= 15.4 and iOS >= 18.4 only.
* include/freetype/tttags.h (TTAG_hvgl, TTAG_hvpm): New macros.
* include/freetype/config/ftmodule.h: Add `hvf_driver_class`.
* include/freetype/internal/fttrace.h: Add tracing tags `hvfdrv`, `hvfobjs`,
and `hvfload`
* include/freetype/internal/services/svfntfmt.h (FT_FONT_FORMAT_HVF): New
macro.
* modules.cfg (FONT_MODULES): Add `hvf` module.
* src/sfnt/sfobjc.s (sfnt_init_face): Handle 'hvgl' table.
* src/hvf/*: New files.
This flag is going to be used to conditionally compile support for Apple's
Hierarchical Variable Font (HVF) format.
* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_CONFIG_OPTION_HVF): New flag.
==========================
Tag sources with `VER-2-14-3'.
* docs/VERSION.TXT: Add entry for version 2.14.3.
* docs/CHANGES: Updated.
* docs/release, docs/README, builds/macs/README: Updated.
* README, src/base/ftver.rc, builds/windows/vc2010/index.html,
builds/windows/visualc/index.html, builds/windows/visualce/index.html,
builds/wince/vc2005-ce/index.html, builds/wince/vc2008-ce/index.html,
docs/freetype-config.1: s/2.14.2/2.14.3/, s/2142/2143/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 3.
* builds/unix/configure.raw (version_info): Set to 26:6:20.
* CMakeLists.txt (VERSION_PATCH): Set to 3.
During charstring processing, the `decoder->len_buildchar` field can be
corrupted. Avoid this by caching this value in a local variable at function
entry.
Based on a patch submitted by David Pokora <david.pokora@trailofbits.com>.
Fixes issue #1405.
==========================
Tag sources with `VER-2-14-2'.
* docs/VERSION.TXT: Add entry for version 2.14.2.
* docs/CHANGES: Updated.
* docs/release, docs/README, builds/macs/README: Updated.
* README, src/base/ftver.rc, builds/windows/vc2010/index.html,
builds/windows/visualc/index.html, builds/windows/visualce/index.html,
builds/wince/vc2005-ce/index.html, builds/wince/vc2008-ce/index.html,
docs/freetype-config.1: s/2.14.1/2.14.2/, s/2141/2142/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 2.
* builds/unix/configure.raw (version_info): Set to 26:5:20.
* CMakeLists.txt (VERSION_PATCH): Set to 2.
* src/base/src/base/ftobjs.c (ft_glyphslot_alloc_bitmap): Use preset
dimensions and call FT_MEM_ALLOC_MULT.
* include/freetype/internal/ftobjs.h (ft_glyphslot_alloc_bitmap):
Updated signature...
* src/*: ... and all callers.
