For internal use; we want to share code between the forthcoming CFF2
support and TrueType.
* include/freetype/internal/services/svmm.h (FT_Get_Var_Blend_Func):
New typedef.
(MultiMasters): Add `get_var_blend'.
(FT_Service_MultiMasters): Updated.
* src/truetype/ttgxvar.c (tt_get_var_blend): New function.
* src/truetype/ttgxvar.h: Updated.
* src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated.
* src/type1/t1driver.c (t1_service_multi_masters): Updated.
For internal use; we want to share code between the forthcoming CFF2
support and TrueType.
* include/freetype/internal/services/svmm.h (FT_Done_Blend_Func):
New typedef.
(MultiMasters): Add `done_blend'.
(FT_Service_MultiMasters): Updated.
* src/truetype/ttgxvar.c (tt_done_blend): Use `TT_Face' as argument.
* src/truetype/ttgxvar.h: Updated.
* src/truetype/ttobjs.c (TT_Face_Done): Updated.
* src/truetype/ttdriver.c (tt_service_gx_multi_masters): Updated.
* src/type1/t1driver.c (t1_service_multi_masters): Updated.
CFF2 fonts will need access to those two functions.
* include/freetype/internal/sfnt.h: Include FT_SERVICE_GLYPH_DICT_H.
(SFNT_Interface): Add `get_glyph_name' and `get_name_index' members.
(FT_DEFINE_SFNT_INTERFACE): Updated.
* src/sfnt/sfdriver.c (sfnt_get_glyph_name, sfnt_get_name_index):
Fix signatures to exactly correspond to the glyph dict service
function typedefs.
(sfnt_interface): Updated.
Note that the low-level functions aren't implemented yet.
* include/freetype/ftmm.h: Declare.
* include/freetype/internal/services/svmm.h
(FT_Get_Var_Design_Func): New typedef.
(MultiMasters): New MM service function `get_var_design'.
(FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated.
Update all callers.
* src/base/ftmm.c (FT_Get_Var_Design_Coordinates): Implement.
* src/truetype/ttdriver.c: Updated.
* src/truetype/ttgxvar.c (TT_Get_Var_Design): New dummy function to
handle `get_var_design' service.
* src/truetype/ttgxvar.h: Updated.
* src/type1/t1driver.c: Updated.
* src/type1/t1load.c (T1_Get_Var_Design): New dummp function to
handle `get_var_design' service.
* src/type1/t1load.h: Updated.
`FT_Load_Glyph' doesn't generate a bitmap for a non-bitmap glyph
until the user calls `FT_Render_Glyph'. However, it always
allocates memory for bitmaps and copies or decodes the contents of a
bitmap glyph, which can be quite slow for PNG data.
* include/freetype/freetype.h (FT_LOAD_BITMAP_METRICS_ONLY): New
macro.
* src/base/ftobjs.c (FT_Load_Glyph): Unset FT_LOAD_RENDER if
FT_LOAD_BITMAP_METRICS_ONLY is used.
* src/sfnt/ttsbit.c (tt_sbit_decoder_alloc_bitmap,
tt_sbit_decoder_load_bitmap): Add argument to control allocation of
the glyph slot.
(tt_sbit_decoder_load_image, tt_sbit_decoder_load_compound,
tt_face_load_sbit_image): Updated.
* src/pcf/pcfdrivr.c (PCF_Glyph_Load): Quickly exit if
`FT_LOAD_BITMAP_METRICS_ONLY' is set.
* src/pfr/pfrsbit.c, src/pfr/pfrsbit.h (pfr_slot_load_bitmap): Add
argument to control allocation of the glyph slot.
* src/pfr/pfrobjs (pfr_slot_load): Updated.
* src/winfonts/winfnt.c (FNT_Load_Glyph): Ditto.
* docs/CHANGES: Updated.
* include/freetype/config/ftconfig.h, builds/unix/ftconfig.in,
builds/vms/ftconfig.h (FT_TYPEOF): Update code to use definition in
current version of `intprops.h'.
Other minor synchronization to reduce code differences between the
three files.
* include/freetype/ftmm.h: Declare.
* include/freetype/internal/services/svmm.h (FT_Get_MM_Blend_Func):
New typedef.
(MultiMasters): New MM service function `get_mm_blend'.
(FT_DEFINE_SERVICE_MULTIMASTERSREC): Updated.
Update all callers.
* src/base/ftmm.c (FT_Get_MM_Blend_Coordinates,
FT_Get_Var_Blend_Coordinates): Implement.
* src/truetype/ttdriver.c: Updated.
* src/truetype/ttgxvar.c (TT_Get_MM_Blend): New function to handle
`get_mm_blend' service.
* src/truetype/ttgxvar.h: Updated.
* src/type1/t1driver.c: Updated.
* src/type1/t1load.c (T1_Get_MM_Blend): New function to handle
`get_mm_blend' service.
* src/type1/t1load.h: Updated.
* docs/CHANGES: Document.
This avoids additional calls to `tt_face_lookup_table' for the
`glyf' table, which can be expensive.
* include/freetype/internal/tttypes.h (TT_LoaderRec): Move
`glyf_offset' field to ...
(TT_FaceRec): ... this structure.
* src/truetype/ttgload.c (load_truetype_glyph): Updated.
(tt_loader_init): Move initialization of `glyf_offset' to ...
* src/truetype/ttpload.c (tt_face_load_loca): .. this function.
FreeType tries to sanitize strike header data; we now reject
completely broken ones.
* include/freetype/internal/tttypes.h (TT_FaceRec): New
`sbit_strike_map' array pointer.
* src/base/ftobjs.c (FT_Match_Size): Reject matches where either
width or height would be zero.
Add tracing message in case of error.
* src/sfnt/sfobjs.c (sfnt_load_face): Populate `sbit_strike_map',
only using (more or less) valid strike header data for
FT_Face's `available_sizes' array.
(sfnt_done_face): Updated.
* src/sfnt/ttsbit.c (tt_face_set_sbit_strike): Use
`sbit_strike_map'.
(tt_face_load_strike_metrics): Improve tracing.
* src/truetype/ttdriver.c (tt_size_select): Use `sbit_strike_map'.
=======================
Tag sources with `VER-2-7'.
* docs/VERSION.TXT: Add entry for version 2.7.
* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.6.5/2.7/, s/265/27/.
* include/freetype/freetype.h (FREETYPE_MINOR): Set to 7.
(FREETYPE_PATCH): Set to 0.
* builds/unix/configure.raw (version_info): Set to 18:6:12.
* CMakeLists.txt (VERSION_MINOR): Set to 7.
(VERSION_PATCH): Set to 0.
* docs/CHANGES: Updated.
This commit avoids `EBDT' and friends being looked up again and
again while loading a single embedded bitmap.
* include/freetype/internal/tttypes.h (TT_FaceRec)
[TT_CONFIG_OPTION_EMBEDDED_BITMAPS]: New fields `ebdt_start' and
`ebdt_size'.
* src/sfnt/ttsbit.c (tt_sbit_decoder_init): Move table lookup to ...
(tt_face_load_sbit): ... this function; also store the table size
and offset.
This removes unnecessary complexity of span merging and buffering.
Instead, the spans are rendered as they come, speeding up the
rendering by about 5% percents as a result.
* src/smooth/ftgrays.c [FT_MAX_GRAY_SPANS]: Macro removed.
(gray_TWorker): Remove span buffer and related fields.
(gray_sweep, gray_hline): Updated.
* include/freetype/ftimage.h: Remove documentation note about
`FT_MAX_GRAY_SPANS', which was never in `ftoption.h' and is now gone.
This commit covers the most important one.
* src/autofit/afmodule.c (af_property_set): Handle `warping',
`darkening-parameters', and `no-stem-darkening'.
* src/cff/cffdrivr.c (cff_property_set): Handle
`darkening-parameters', `hinting-engine', and `no-stem-darkening'.
* src/truetype/ttdriver.c (tt_property_set): Handle
`interpreter-version'.
Recognizing properties follows in another commit.
* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES): New macro.
* include/freetype/config/ftstdlib.h (ft_getenv): New macro.
* src/base/ftinit.c (ft_set_default_properties): New function to
parse `FREETYPE_PROPERTIES' and calling `ft_property_string_set'.
(FT_Init_FreeType): Updated.
This is a preparation for handling an `FREETYPE_PROPERTIES'
environment variable to control (some) driver properties.
No change in functionality.
* src/base/ftobjs.c (ft_property_do): Add `value_is_string'
parameter.
(ft_property_string_set): New function.
(FT_Property_Set, FT_Property_Get): Updated.
* include/freetype/internal/ftobjs.h: Updated.
* include/freetype/internal/services/svprop.h
(FT_Properties_SetFunc): Add `value_is_string' parameter.
* src/autofit/afmodule.c (af_property_set), src/cff/cffdrivr.c
(cff_property_set), src/truetype/ttdriver.c (tt_property_set):
Updated, emitting an error currently if `value_is_string' is set.
=========================
Tag sources with `VER-2-6-4'.
* docs/VERSION.TXT: Update documentation and bump version number to
2.6.4.
* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.6.3/2.6.4/, s/263/264/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 4.
* builds/unix/configure.raw (version_info): Set to 18:4:12.
* CMakeLists.txt (VERSION_PATCH): Set to 4.
* docs/CHANGES: Updated.
This patch prepares data structures and the like.
See added comments in `ttinterp.h' for more information on this and
the following commits in the series.
* devel/ftoption.h, include/freetype/config/ftoption.h
(TT_CONFIG_OPTION_SUBPIXEL_HINTING): Assign values to differentiate
between subpixel versions.
(TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY,
TT_SUPPORT_SUBPIXEL_HINTING_MINIMAL): New macros.
* include/freetype/ftttdrv.h (TT_INTERPRETER_VERSION_40): New macro.
* include/freetype/internal/tttypes.h (TT_FaceRec): Updated.
* src/truetype/ttinterp.h (TT_ExecContextRec): Define new fields
`subpixel_hinting_lean', `vertical_lcd_lean',
`backwards_compatibility', `iupx_called', iupy_called', and
`grayscale_cleartype' for new hinting mode.
* src/truetype/ttdriver.c (tt_property_set): Handle v38 and v40
interpreters conditionally.
* src/truetype/ttgload.c (TT_Hint_Glyph): Save phantom points unless
in v38 backwards compatibility mode.
Updated.
(compute_glyph_metrics): Add v38 backwards compatibility mode
constraint for adjusting advance widths.
Updated.
(tt_loader_init): Handle new flags `subpixel_hinting_lean',
`grayscale_cleartype', and `vertical_lcd_lean'.
Updated.
(tt_get_metrics, TT_Process_Simple_Glyph, TT_LOADER_SET_PP):
Updated.
* src/truetype/ttobjs.c (tt_driver_init): Conditionally set
default interpreter version number.
* src/truetype/ttsubpix.c, src/truetype/ttsubpix.h: Updated.
* include/freetype/config/ftstdlib.h (FT_LONG_MIN): New macro.
* src/cff/cffparse.c (cff_parse_font_matrix): Use largest scaling
value of all matrix coefficients to scale matrix.
* src/cff/cffobjs.c (cff_face_init): Use `matrix->yx' member for
matrix normalization if `matrix->yy' is zero.
We need this for backwards compatibility.
Problem reported by John Emmas <johne53@tiscali.co.uk>.
* include/freetype/fterrors.h: Fix inclusion guard so that
undefining either `FTERRORS_H_' or `__FTERRORS_H__' works as
expected.
* src/base/ftlcdfil.c (FT_Library_SetLcdFilterWeights): Enable filter
in addition to setting weights.
(FT_Library_SetLcdFilter): Clean out FT_FORCE_LIGHT_LCD_FILTER and
FT_FORCE_LEGACY_LCD_FILTER.
* include/freetype/ftlcdfil.h: Documentation update.
Such macro names are reserved for both C and C++.
* include/freetype/ftimage.h, src/raster/ftraster.c,
src/smooth/ftgrays.c, src/smooth/ftgrays.h:
s/_STANDALONE_/STANDALONE_/.
We now use a hash to map from subr indices to array elements holding
the subroutines, if necessary.
* include/freetype/internal/t1types.h: Include FT_INTERNAL_HASH_H.
(T1_FontRec): Add `subrs_hash' field.
* include/freetype/internal/psaux.h: Include FT_INTERNAL_HASH_H.
(T1_DecoderRec): Add `subrs_hash' field.
* src/type1/t1load.h (T1_LoaderRec): Add `subrs_hash' field.
* src/type1/t1driver.c: Include FT_INTERNAL_HASH_H.
(t1_ps_get_font_value) [PS_DICT_SUBR]: Look up hash if necessary.
* src/type1/t1load.c: Include FT_INTERNAL_HASH_H.
(parse_subrs): Use hash for subr indices that exceed the allocated
number of subr slots.
(t1_init_loader): Remove unnecessary code.
(t1_done_loader, T1_Open_Face): Updated.
* src/type1/t1gload.c (T1_Compute_Max_Advance, T1_Get_Advances,
T1_Load_Glyph): Updated.
* src/type1/t1objs.c (T1_Face_Done): Updated.
* src/psaux/t1decode.c: Include FT_INTERNAL_HASH_H.
(t1_decoder_parse_charstrings) [op_callsubr]: Look up hash if
necessary.
* src/cid/cidgload.c (cid_load_glyph): Updated.
* src/base/fthash.c (hash_num_lookup, hash_num_compare): New
functions.
(ft_hash_init): Add argument to select between number and string
hashing.
(ft_hash_num_insert, ft_hash_num_lookup): New functions.
* include/freetype/internal/fthash.h: Updated.
* src/bdf/bdflib.c (_bdf_parse_start): Updated.
* include/freetype/internal/fthash.c (FT_Hash_LookupFunc,
FT_Hash_CompareFunc, FT_Hash_FreeFunc): New typedefs.
(FT_HashRec): Add `lookup', `compare', and `free' fields.
* src/base/fthash.c (hash_str_lookup, hash_str_compare,
hash_str_free): New functions.
(ft_hash_init): Set function pointers.
(hash_bucket, ft_hash_free): Use them.
We want to support both an integer and a string key later on.
* include/freetype/internal/fthash.h (FT_Hashkey): New union.
(FT_HashnodeRec): Updated.
(ft_hash_insert, ft_hash_lookup): Renamed to ...
(ft_hash_str_insert, ft_hash_str_lookup): ... this.
* src/base/fthash.c (hash_bucket): Updated.
(ft_hash_insert, ft_hash_lookup): Renamed to ...
(hash_insert, hash_lookup): ... this.
(ft_hash_str_insert, ft_hash_str_lookup): New wrapper functions.
* src/bdf/bdflib.c: Updated.
Scripts like Khmer have blue zones that can't be directly
represented by Unicode characters. Instead, it is necessary to let
HarfBuzz convert character clusters into proper glyph representation
forms, then deriving the blue zone information from the resulting
glyphs.
* src/autofit/hbshim.c, src/autofit/hbshim.h: Replaced by...
* src/autofit/afshaper.c, src/autofit/afshaper.h: ... these two new
files, providing a new API to access HarfBuzz.
The new API manages a HarfBuzz buffer with `af_shaper_buf_create'
and `af_shaper_buf_destroy'. The buffer receives a UTF8 encoded
string with function `af_shaper_get_cluster', and the resulting
glyph data (indices, advance widths, vertical offsets) can be
iteratively accessed with function `af_shaper_get_elem'.
* src/autofit/afcjk.c (af_cjk_metrics_init_widths,
af_cjk_metrics_init_blues, af_cjk_metrics_check_digits): Updated.
* src/autofit/aflatin.c (af_latin_metrics_init_widths,
af_latin_metrics_init_blues, af_latin_metrics_check_digits):
Updated.
* include/freetype/internal/fttrace.h: s/afharfbuzz/afshaper/.
* src/autofit/afglobal.c: s/hbshim.h/afshaper.h/.
(af_face_globals_compute_style_coverage): Updated.
* src/autofit/afglocal.h: s/hbshim.h/afshaper.h/.
* src/autofit/autofit.c: s/hbshim.c/afshaper.c/.
* src/autofit/Jamfile, src/autofit/rules.mk (AUTOF_DRV_SRC):
Updated.
=========================
Tag sources with `VER-2-6-2'.
* docs/VERSION.DLL: Update documentation and bump version number to
2.6.2.
* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.6.1/2.6.2/, s/261/262/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 2.
* builds/unix/configure.raw (version_info): Set to 18:2:12.
* CMakeLists.txt (VERSION_PATCH): Set to 2.
* docs/CHANGES: Updated.
This does the same as `FT_LCD_FILTER_LEGACY'.
See
https://bugs.freedesktop.org/show_bug.cgi?id=92981
for the reasoning.
* include/freetype/ftlcdfil.h (FT_LcdFilter): New value
`FT_LCD_FILTER_LEGACY1'.
* src/base/ftlcdfil.c (FT_Library_SetLcdFilter): Use it.
Both the native CFF hinter and the auto-hinter now have a very
similar rendering style.
* include/freetype/freetype.h: Mention that FT_LOAD_TARGET_LIGHT no
longer implies FT_LOAD_FORCE_AUTOHINT.
* include/freetype/ftmodapi.h (FT_MODULE_DRIVER_HINTS_LIGHTLY): New
macro.
* include/freetype/internal/ftobjs.h (FT_DRIVER_HINTS_LIGHTLY): New
macro.
* src/cff/cffdrivr.c (cff_driver_class): Use it.
* src/base/ftobjs.c (FT_Load_Glyph): Update auto-hinter selection
logic.
* include/freetype/internal/tttypes.h (TT_LoaderRec): New field
`composites'.
* src/truetype/ttgload.c: Include FT_LIST_H.
(load_truetype_glyph): Add composite subglyph index to a list;
abort if index is already in list.
(tt_loader_init): Updated.
(tt_loader_done): New function.
(TT_Load_Glyph): Call `tt_loader_done'.
Actual code follows in a later commit.
* include/freetype/ftautoh.h: Document `no-stem-darkening' and
`darkening-parameters'.
* src/autofit/afmodule.h: New fields `no_stem_darkening' and
`darken_params'.
* src/autofit/afmodule.c (af_property_set, af_property_get):
Handle them.
(af_autofitter_init): Initialize them.
=========================
Tag sources with `VER-2-6-1'.
* docs/VERSION.DLL: Update documentation and bump version number to
2.6.1.
* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
builds/windows/vc2005/index.html,
builds/windows/vc2008/freetype.vcproj,
builds/windows/vc2008/index.html,
builds/windows/vc2010/freetype.vcxproj,
builds/windows/vc2010/index.html,
builds/windows/visualc/freetype.dsp,
builds/windows/visualc/freetype.vcproj,
builds/windows/visualc/index.html,
builds/windows/visualce/freetype.dsp,
builds/windows/visualce/freetype.vcproj,
builds/windows/visualce/index.html,
builds/wince/vc2005-ce/freetype.vcproj,
builds/wince/vc2005-ce/index.html,
builds/wince/vc2008-ce/freetype.vcproj,
builds/wince/vc2008-ce/index.html: s/2.6/2.6.1/, s/26/261/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 1.
* builds/unix/configure.raw (version_info): Set to 18:1:12.
* CMakeLists.txt (VERSION_PATCH): Set to 1.
* src/autofit/afmodule.c [AF_DEBUG_AUTOFIT]: Ensure C linking for
dumping functions.
While the current code in `FT_Get_Next_Char' correctly rejects
out-of-bounds glyph indices, it can be extremely slow for malformed
cmaps that use 32bit values. This commit tries to improve that.
* src/sfnt/ttcmap.c (tt_cmap8_char_next, tt_cmap12_next,
tt_cmap12_char_map_binary, tt_cmap13_next,
tt_cmap13_char_map_binary): Reject glyph indices larger than or
equal to the number of glyphs.
