Extra bitmap padding for LCD filtering depends on the filter. The
default 5-tap filter needs 2 extra subpixels. The light 3-tap filter
needs only 1 extra subpixel. This space could be already available
due to rounding. In order to optimize the padding, we now expand
CBox for the given filter weights before rounding.
This change breakes current Skia (and Firefox).
* include/freetype/internal/ftobjs.h (FT_LibraryRec)
[FT_CONFIG_OPTION_SUBPIXEL_RENDERING]: Remove `lcd_extra' field.
* src/base/ftlcdfil.c (FT_Library_SetLcdFilterWeights,
FT_Library_SetLcdFilter): Remove `lcd_extra' initializations.
* src/smooth/ftsmooth.c (ft_smooth_render_generic): Implement dymanic
LCD padding.
=======================
Tag sources with `VER-2-8'.
* docs/VERSION.TXT: Add entry for version 2.8.
* docs/CHANGES: Updated.
* 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/2.7.1/2.8/, s/271/28/.
* include/freetype/freetype.h (FREETYPE_MINOR): Set to 8.
(FREETYPE_PATCH): Set to 0.
* builds/unix/configure.raw (version_info): Set to 20:0:14.
* CMakeLists.txt (VERSION_MINOR): Set to 8.
(VERSION_PATCH): Set to 0.
* include/freetype/config/ftoption.h
(AF_CONFIG_OPTION_TT_SIZE_METRICS): New option, commented out by
default.
* src/autofit/afloader.c (af_loader_load_glyph): Use
AF_CONFIG_OPTION_TT_SIZE_METRICS to guard the corresponding code.
This mode uses fractional advance widths and doesn't scale glyphs
horizontally, only applying vertical scaling and hinting.
At the same time, the behaviour of the `light' auto-hinter gets
restored for backwards compatibility: Both vertical and horizontal
scaling is again based on rounded metrics values (this was changed
in a commit from 2017-03-30 as a side effect). To be more precise,
the behaviour is restored for TrueType fonts only; for other font
formats like Type 1, this is a new feature of the `light' hinting
mode.
* include/freetype/freetype.h (FT_LOAD_TARGET_SLIGHT): New macro.
(FT_RENDER_MODE_SLIGHT): New render mode.
* include/freetype/internal/ftobjs.h (FT_Size_InternalRec): Add
`autohint_mode' and `autohint_metrics' fields.
* src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c
(af_latin_hints_init), src/autofit/aflatin2 (af_latin2_hints_init):
Updated.
* src/autofit/afloader.c (af_loader_embolden_glyph_in_slot): Use
`autohint_metrics'.
(af_loader_load_glyph): s/internal/slot_internal/.
Initialize `autohint_metrics' and `autohint_mode' depending on
current auto-hint mode.
Use `autohint_metrics'.
Updated.
* src/base/ftadvanc.c (LOAD_ADVANCE_FAST_CHECK): Updated.
* src/base/ftobjs.c (FT_Load_Glyph): Updated.
(FT_New_Size): Allocate `internal' object.
* src/pshinter/pshalgo.c (ps_hints_apply): Updated.
* src/smooth/ftsmooth.c (ft_smooth_render): Updated.
We are going to extend this later on.
* include/freetype/internal/ftobjs.h (FT_Size_InternalRec): New
structure with a single field `module_data'.
* src/base/ftobjs.c (FT_New_Size): Allocate `internal' field of
`FT_Size' structure.
* src/cff/cffgload.c (cff_builder_init, cff_decoder_prepare): Use
`size->internal->module_data' instead of `size->internal'.
* src/cff/cffobjs.c (cff_size_done): Deallocate `module_data'.
(cff_size_init, cff_size_select, cff_size_request): Use
`size->internal->module_data' instead of `size->internal'.
* src/cif/cidobjs.c (cid_size_done, cid_size_init,
cid_size_request): Use `size->internal->module_data' instead of
`size->internal'.
* src/psaux/psobjs.c (t1_builder_ini): Use
`size->internal->module_data' instead of `size->internal'.
* src/type1/t1objs.c (T1_Size_Done, T1_Size_Init, T1_Size_Request):
Use `size->internal->module_data' instead of `size->internal'.
Reported as
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=981
* include/freetype/fterrdef.h (FT_Err_DEF_In_Glyf_Bytecode): New
error code.
* src/truetype/ttinterp.c (Ins_FDEF, Ins_IDEF): Prohibit execution
of these two opcodes in `glyf' bytecode.
(TT_RunIns): Don't enforce reexecution of `fpgm' and `prep' bytecode
in case of error since function tables can no longer be modified
(due to the changes in `Ins_FDEF' and `Ins_IDEF'). This change can
enormously speed up handling of broken fonts.
We have to make a separate case for Windows 64's LLP64 data model.
* builds/unix/ftconfig.in, builds/vms/ftconfig.h,
include/freetype/config/ftconfig.h (FT_UINT_TO_POINTER): New macro.
* src/truetype/ttgload.c (load_truetype_glyph): Use it.
Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT.
* include/freetype/internal/tttypes.h (TT_FaceRec): New fields
`var_postscript_prefix' and `var_postscript_prefix_len'.
* src/sfnt/sfdriver.c: Include FT_TRUETYPE_IDS_H.
(sfnt_is_alphanumeric): New wrapperfunction for `ft_isalnum'.
(get_win_string, get_apple_string): Remove `const' from return
value.
(MAX_VALUE_DESCRIPTOR_LEN, MAX_PS_NAME_LEN): New macros.
(hexdigits): New array.
(sfnt_get_var_ps_name): New function, implementing Adobe TechNote
5902 to construct a PS name for a variation font instance.
(sfnt_get_ps_name): Call `sfnt_get_var_ps_name' for font instances.
* src/sfnt/sfobjs.c (sfnt_done_face): Updated.
* src/truetype/ttgxvar.c (tt_set_mm_blend): Reset
`face->postscript_name' to trigger recalculation for new instance
parameters.
* include/freetype/internal/services/svmm.h (FT_Get_Var_Blend_Func):
Add `normalizedcoords' argument.
* src/truetype/ttgxvar.h (GX_BlendRec): Add `coords' field to store
the design coordinates of the current instance.
Updated.
* src/truetype/ttgxvar.c (TT_Set_MM_Blend): Move functionality to...
(tt_set_mm_blend): ... New function.
Convert data in `normalizedcoords' array to `coords' array on
demand.
(TT_Set_Var_Design): Store argument data in `coords' array.
(TT_Get_Var_Design): Get data from `coords' array.
(tt_get_var_blend): Updated.
(tt_done_blend): Updated.
* src/cff/cffload.c, src/cff/cffload.h (cff_get_var_blend): Updated.
* src/cff/cf2ft.c (cf2_getNormalizedVector): Updated.
* src/cff/cffobjs.c (cff_face_init): Updated.
We need this for support of the `random' operator.
* include/freetype/ftcffdrv.h (FT_PARAM_TAG_RANDOM_SEED): New macro.
* include/freetype/internal/ftobjs.h (FT_Face_InternalRec): New
field `random_seed'.
* src/cff/cffobjs.h (CFF_DriverRec): New field `random_seed'.
This commit provides the framework, to be filled with something
useful in the next commits.
* include/freetype/freetype.h (FT_Face_Properties): Declare.
* src/base/ftobjs.c (FT_Face_Properties): New function.
* include/freetype/internal/tttypes.h (TT_LangTagRec): New
structure.
(TT_NameTableRec): Add fields `numLangTagRecords' and `langTags'.
* src/sfnt/ttload.c (tt_face_load_name): Add support for language
tags.
Reduce array size of name strings in case of invalid entries.
(tt_face_free_name): Updated.
* docs/CHANGES: Updated.
Show more macros in the reference: TT_MAC_LANGID_XXX, TT_MS_LANGID_XXX,
TT_NAME_ID_XXX, TT_UCR_XXX.
This commit is viewed best with
git diff --color-words='[^*/ ]+'
The change from 2016-09-29 was too radical (except for people using
the openSuSE GNU/Linux distribution). To ameliorate the situation,
PCF_CONFIG_OPTION_LONG_FAMILY_NAMES gets introduced which controls
the feature; if set, a new PCF property option
`no-long-family-names' can be used to switch this feature off.
* include/freetype/config/ftoption.h, devel/ftoption.h
(PCF_CONFIG_OPTION_LONG_FAMILY_NAMES): New option.
* include/freetype/ftpcfdrv.h: New header file (only containing
comments currently, used for building the documentation).
* include/freetype/config/ftheader.h (FT_PCF_DRIVER_H): New macro.
* src/pcf/pcf.h (PCF_Driver): Add `no_long_family_names' field.
* src/pcf/pcfdrivr.c: Include FT_SERVICE_PROPERTIES_H and
FT_PCF_DRIVER_H.
(pcf_property_set, pcf_property_get): New functions.
(pcf_service_properties): New service.
(pcf_servives): Updated.
(pcf_driver_init) [PCF_CONFIG_OPTION_LONG_FAMILY_NAMES]: Handle
`no_long_family_names'.
* src/pcf/pcfread.c (pcf_load_font): Handle `no_long_family_names'
and PCF_CONFIG_OPTION_LONG_FAMILY_NAMES.
* docs/CHANGES: Updated.
* include/freetype/internal/tttypes.h (TT_FACE_FLAG_VAR_XXX):
Remove all flags related to MVAR; replace it with...
(TT_FACE_FLAG_VAR_MVAR): ...this new macro.
(TT_Face): Remove `mvar_support' field (which was still unused).
* include/freetype/internal/tttypes.h (TT_FACE_FLAG_VAR_XXX):
New macros describing available functionality of various OpenType
tables related to font variation.
(TT_Face): New fields `variation_support' and `mvar_support',
replacing and extending `use_fvar'.
* src/sfnt/sfobjs.c (sfnt_init_face, sfnt_load_face): Use
`variation_support'.
* src/truetype/ttgxvar.c (ft_var_load_hvar): Set `variation_support'
field.
(TT_Vary_Apply_Glyph_Deltas): Updated.
In particular, we need access to named instance data.
* include/freetype/internal/services/svmm.h (FT_Get_Var_Blend_Func):
Add argument for `FT_MM_Var'.
* src/cff/cffload.c (cff_get_var_blend): Updated.
* src/cff/cffload.h: Updated.
* src/cff/cf2ft.c (cf2_getNormalizedVector): Updated.
* src/truetype/ttgxvar.c (tt_get_var_blend): Updated.
Accept value `NULL' for arguments.
* src/truetype/ttgxvar.h: Updated.
This is better behaviour than exiting with an error.
* include/freetype/internal/tttypes.h (TT_Face): Add `use_fvar'
field.
* src/sfnt/sfobjs.c (sfnt_init_face): Compute `use_fvar', also
updating the validation code.
Use `use_fvar' to compute FT_FACE_FLAG_MULTIPLE_MASTERS.
* src/truetype/ttgxvar.c (TT_Get_MM_Var): Remove `fvar' validation
code.
* include/freetype/internal/tttypes.h (TT_Face): Move
`is_default_instance' into TT_CONFIG_OPTION_GX_VAR_SUPPORT
block.
* src/sfnt/sfobjs.c (sfnt_init_face): Updated.
* src/truetype/ttgload.c (IS_DEFAULT_INSTANCE): New macro.
(TT_Load_Glyph): Use it.
Note that this is not complete yet; it only handles advance width
variation.
Activation of the code follows in another commit.
* include/freetype/ftmm.h (FT_Var_Named_Style): Add `psid' member.
* src/truetype/ttgxvar.h (GX_HVarData, GX_AxisCoords, GX_HVarRegion,
GX_HVStore, GX_WidthMap): New auxiliary structures for...
(GX_HVarTable): ... HVAR main structure.
(GX_BlendRec): Add data for HVAR loading.
* src/truetype/ttgxvar.c (FT_FIXED_ONE, FT_fdot14ToFixed,
FT_intToFixed, FT_fixedToInt): New macros.
(ft_var_load_hvar): New function.
(TT_Get_MM_Var): Updated.
(tt_done_blend): Deallocate HVAR data.
No effect yet; service functions will be implemented later on.
Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT.
* include/freetype/internal/services/svmetric.h: New file.
* include/freetype/internal/ftserv.h
(FT_SERVICE_METRICS_VARIATIONS_H): New macro.
* include/freetype/internal/tttypes.h (TT_Face): New field `var'.
* src/sfnt/sfobjs.c: Include FT_SERVICE_METRICS_VARIATIONS_H.
(sfnt_init_face): Initialize `face->var'.
* src/truetype/ttdriver.c: Include FT_SERVICE_METRICS_VARIATIONS_H.
(tt_service_metrics_variations): New service.
(tt_services): Updated.
* src/truetype/ttpic.h: Updated.
The code simply uses the MM functions from the `truetype' module.
Everything is guarded with TT_CONFIG_OPTION_GX_VAR_SUPPORT.
* include/freetype/internal/tttypes.h (TT_Face): New field `mm'.
* src/cff/cffdrivr.c: Include FT_SERVICE_MULTIPLE_MASTERS_H.
(cff_set_mm_blend, cff_get_mm_blend, cff_get_mm_var,
cff_set_var_design, cff_get_var_design): New functions.
(cff_service_multi_masters): New service.
(cff_services): Updated.
* src/cff/cffload.c (cff_get_var_blend, cff_done_blend): New
functions.
* src/cff/cffload.h: Updated.
* src/cff/cffpic.h (CFF_SERVICE_MULTI_MASTERS_GET): New macro.
* src/sfnt/sfobjs.c: Include FT_SERVICE_MULTIPLE_MASTERS_H.
(sfnt_init_face): Initialize `face->mm'.
It can now differentiate between local and global searches.
* src/base/ftobjs.c (ft_module_get_service): Add `global' argument.
(FT_Get_TrueType_Engine_Type): Updated.
* src/cff/cffdrivr.c (cff_get_ps_name, cff_get_cmap_info): Updated.
* include/freetype/internal/ftobjs.h: Updated.
* include/freetype/internal/ftserv.h (FT_FACE_FIND_GLOBAL_SERVICE):
Updated.
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.
* include/freetype/ftautoh.h (FT_Prop_GlyphToScriptMap): Use
`FT_UShort' for `map' field.
* src/autofit/afglobal.c (af_face_globals_compute_style_coverage,
af_face_globals_new), src/autofit/hbshim.c, src/autofit/hbshim.h
(af_get_coverage): Use FT_UShort for `glyph_styles' array.
* src/autofit/afglobal.h (AF_STYLE_UNASSIGNED, AF_DIGIT): Extend to
16 bits.
(AF_FaceGlobalsRec): Use `FT_UShort' for `glyph_styles' field.
For functions querying a face, bits 16-30 of the face index can hold
the named instance index if we have a GX font. The indices start
with value 1; value 0 indicates font access without GX variation
data.
* include/freetype/freetype.h (FT_FaceRec): Update documentation.
* include/freetype/internal/sfnt.h: Ditto.
* src/sfnt/sfobjs.c (sfnt_init_face)
[TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Get number of named instances and
do argument checks.
(sfnt_load_face): Updated.
* src/truetype/ttobjs.c (tt_face_init)
[TT_CONFIG_OPTION_GX_VAR_SUPPORT]: Use named instance, overwriting
the style name.
* src/base/ftobjs.c (open_face_from_buffer,
open_face_PS_from_sfnt_stream): Updated.
* src/bdf/bdfdrivr.c (BDF_Face_Init): Updated.
* src/cff/cffload.c (cff_font_load): Updated.
* src/cff/cffobjs.c (cff_face_init): Make function exit early for
pure CFF fonts if `font_index < 0'.
Updated.
* src/cid/cidobjs.c (cid_face_init): Updated.
* src/pcf/pcfdrivr.c (PCF_Face_Init): Updated.
* src/pfr/pfrobjs.c (pfr_face_init): Updated.
* src/type1/t1objs.c (T1_Face_Init): Updated.
* src/type42/t42objs.c (T42_Face_Init): Updated.
* src/winfonts/winfnt.c (fnt_face_get_dll_font, FNT_Face_Init):
Updated.
* docs/CHANGES: Updated.
* include/freetype/internal/sfnt.h (TT_Get_Name_Func): New
prototype.
(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): New member `get_name'.
* src/sfnt/sfdriver.c (sfnt_interface): Updated.
* src/sfnt/sfobjs.c (tt_face_get_name): Tag it with `LOCAL_DEF'.
* src/sfnt/sfobjs.h: Add prototype for it.
The function uses Newton's iterations instead of dividing vector
components by its length, which needs a square root. This is,
literally, a bit less accurate but a lot faster.
* src/base/ftcalc.c (FT_Vector_NormLen): New function.
This change is a result of a discussion thread on freetype-devel
http://lists.nongnu.org/archive/html/freetype-devel/2015-06/msg00041.html
Re-introduce the `freetype2' subdirectory for all FreeType header
files after installation, and rename the `freetype2' subdirectory in
the git repository to `freetype'.
* include/freetype2: Renamed to...
* include/freetype: This.
* CMakeLists.txt (PUBLIC_HEADERS, PUBLIC_CONFIG_HEADERS,
PRIVATE_HEADERS): Updated.
Update creation of `ftconfig.h'.
Install generated `ftconfig.h'.
* Jamfile (HDRMACRO, RefDoc), autogen.sh: Updated.
* builds/amiga/include/config/ftconfig.h, builds/freetype.mk
(PUBLIC_DIR), builds/symbian/bld.inf, builds/toplevel.mk (work),
builds/unix/freetype2.in: Updated.
* builds/unix/freetype-config.in: Updated.
* builds/unix/configure.raw: Don't check for `rmdir'.
* builds/unix/unix-def.in (DELDIR): Use `rm -rf', which is portable
according to the autoconf info manual.
* builds/unix/install.mk (install, uninstall,
distclean_project_unix): Update and simplify.
* builds/wince/*, builds/windows/*: Updated.
* devel/ft2build.h, include/ft2build.h: Updated.
* include/freetype2/config/ftheader.h,
include/freetype2/internal/ftserv.h,
include/freetype2/internal/internal.h: Update all header file
macros.
* src/tools/chktrcmp.py (TRACE_DEF_FILES): Updated.
* docs/*: Updated.
* builds/unix/ftconfig.in, builds/vms/ftconfig.in,
include/freetype2/config/ftconfig.h,
include/freetype2/internal/ftobjs.h, src/autofit/afwarp.h: Do it.
We no longer `pollute' the namespace of possible header file names;
instead we move `ft2build.h' up by one level so that it gets
installed in the default include directory (e.g.,
/usr/local/include). After this commit, only `ft2build.h' stays in
the compiler's include path.
No visible changes for the user who follows the standard FreeType
header inclusion rules.
* include/*: Move to ...
* include/freetype2/*: This directory, except `ft2build.h'.
* CMakeLists.txt (PUBLIC_HEADERS, PUBLIC_CONFIG_HEADERS,
PRIVATE_HEADERS), Jamfile (HDRMACRO, RefDoc), autogen.sh: Updated.
* builds/amiga/include/config/ftconfig.h, builds/freetype.mk
(PUBLIC_DIR), builds/symbian/bld.inf, builds/toplevel.mk (work),
builds/unix/install.mk (install, uninstall),
builds/unix/freetype2.in: Updated.
* builds/unix/freetype-config.in: Updated.
Emit -I directory only if it is not `/usr/include'.
* builds/wince/*, builds/windows/*: Updated.
* devel/ft2build.h, include/ft2build.h: Updated.
* include/freetype2/config/ftheader.h,
include/freetype2/internal/ftserv.h,
include/freetype2/internal/internal.h: Update all header file
macros.
* src/tools/chktrcmp.py (TRACE_DEF_FILES): Updated.
* docs/*: Updated.
=======================
Tag sources with `VER-2-6'.
* docs/VERSION.DLL: Update documentation and bump version number to
2.6.
* 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/2.5.5/2.6/, s/255/26/.
* include/freetype/freetype.h (FREETYPE_MINOR): Set to 6.
(FREETYPE_PATCH): Set to 0.
* builds/unix/configure.raw (version_info): Set to 18:0:12.
* CMakeLists.txt (VERSION_MINOR): Set to 0.
(VERSION_PATCH): Set to 6.
* src/autofit/afmodule.c [!FT_MAKE_OPTION_SINGLE_OBJECT]: Add
declarations for dumping functions.
* src/truetype/ttinterp.c (TT_New_Context): Pacify compiler.
* builds/toplevel.mk: Use `freetype.mk's code to compute the version
string.
Don't include a zero patch level in version string.
* builds/freetype.mk: Remove code for computing the version string.
This code replaces the debugging hook from the previous commit with
a better, more generic solution.
* include/ftautoh.h: Document it.
* src/autofit/afmodule.h (AF_ModuleRec)
[AF_CONFIG_OPTION_USE_WARPER]: Add `warping' field.
* src/autofit/afmodule.c (_af_debug_disable_warper): Remove.
(af_property_set, af_property_get, af_autofitter_init)
[AF_CONFIG_OPTION_USE_WARPER]: Handle `warping' option.
* src/autofit/afhints.h (AF_HINTS_DO_WARP): Remove use of the no
longer existing `_af_debug_disable_warper'.
* src/autofit/afcjk.c (af_cjk_hints_init), src/autofit/aflatin.c
(af_latin_hints_init), src/autofit/aflatin2.c (af_latin2_hints_init)
[AF_CONFIG_OPTION_USE_WARPER]: Add `AF_SCALER_FLAG_NO_WARPER' to the
scaler flags if warping is off.
* src/autofit/aftypes.h: Updated.
Problem reported by Behdad.
* src/cff/cffdrivr.c (cff_get_advances): Handle SFNT case
separately.
* src/cff/cffgload.c (cff_slot_load): Use advance width and side
bearing values from `hmtx' table if present.
This commit allows `num_coords' to be larger or smaller than the
number of available axes while selecting a design instance, either
ignoring excess data or using defaults if data is missing.
* src/truetype/ttgxvar.c (TT_Set_MM_Blend, TT_Set_Var_Design):
Implement it.
* src/type1/t1load.c (T1_Set_MM_Blend, T1_Set_MM_Design,
T1_Set_Var_Design): Ditto.
No need for two arguments.
* include/config/ftconfig.h, builds/unix/ftconfig.in,
builds/vms/ftconfig.h (TYPEOF): Updated.
* include/internal/ftobjs.h (FT_PAD_FLOOR, FT_PIX_FLOOR),
src/autofit/afwarp.h (AF_WARPER_FLOOR): Updated.
This is the only place in FreeType where this function was used.
* include/config/ftstdlib.h (ft_labs): Remove.
* src/cache/ftcimage.c (ftc_inode_weight): Replace `ft_labs' with
`FT_ABS'.
* include/internal/t1types.h (AFM_KernPairRec): Make indices
unsigned.
Update users.
(AFM_FontInfoRec): Make element counters unsigned.
Update users.
* src/psaux/afmparse.h (AFM_ValueRec): Add union member for unsigned
int.
* src/psaux/afmparse.c (afm_parse_track_kern, afm_parse_kern_pairs):
Reject negative values for number of kerning elements.
* src/type1/t1afm.c, src/tools/test_afm.c: Updated.
It's unused after the following commits:
[raster] Allocate render pool for mono rasterizer on the stack.
[raster] Remove 5-level gray AA mode from monochrome rasterizer.
The value of FT_RENDER_POOL_SIZE still serves the purpose it used to
serve, which is, to adjust the pool size. But the pool is now
allocated on the stack on demand.
* src/base/ftobjs.c (FT_New_Library, FT_Done_Library): Implement.
It was off by default and couldn't be turned on at runtime. And the
smooth rasterizer superceded it over ten years ago. No point in
keeping. Comments suggested that it was there for compatibility
with FreeType 1.
550 lines down.
* src/raster/ftraster.c (FT_RASTER_OPTION_ANTI_ALIASING,
RASTER_GRAY_LINES): Remove macros and all associated code.
(black_TWorker): Remove `gray_min_x' and `gray_max_x'.
(black_TRaster): Remove `grays' and `gray_width'.
(Vertical_Sweep_Init, Vertical_Sweep_Span, Vertical_Sweep_Drop,
ft_black_render): Updated.
* src/raster/ftrend1.c (ft_raster1_render): Simplify code.
(ft_raster5_renderer_class): Removed.
=========================
Tag sources with `VER-2-5-4'.
* docs/VERSION.DLL: Update documentation and bump version number to
2.5.4.
* 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/2.5.3/2.5.4/, s/253/254/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 4.
* builds/unix/configure.raw (version_info): Set to 17:3:11.
* CMakeLists.txt (VERSION_PATCH): Set to 4.
* docs/CHANGES: Updated.
All public FreeType enumeration and flag values are uppercase...
* include/tttables.h (FT_Sfnt_Tag): Implement it. For backwards
compatilibity, retain the old values as macros.
* src/base/ftfstype.c (FT_Get_FSType_Flags), src/sfnt/sfdriver.c
(get_sfnt_table): Updated.
`API functions' are functions tagged with `FT_EXPORT_DEF'.
Besides trivial fixes, the following changes are included, too.
* src/base/ftbdf.c (FT_Get_BDF_Charset_ID, FT_Get_BDF_Property): Set
error code if no service is available.
* src/base/ftinit.c (FT_Done_FreeType): Change return value for
invalid `library' parameter to `Invalid_Library_Handle'.
* src/base/ftobjs.c (FT_New_Size): Change return value for invalid
`asize' parameter to `Invalid_Argument'.
* src/base/ftoutln.c (FT_Outline_Copy): Change return value for
invalid `source' and `target' parameters to `Invalid_Outline'.
(FT_Outline_Done_Internal): Change return value for invalid
`outline' parameter to `Invalid_Outline'.
`FT_MulFix' takes `FT_Long' parameters as defined in `freetype.h',
but several inline implementations of it in `ftcalc.h' take
`FT_Int32' arguments. This is causing compiler warnings on x86-64:
If parameters of type `FT_Fixed' (= `FT_Long') are passed to the
inline implementation of this function, integer values are truncated
from 64bit to 32bit.
* include/internal/ftcalc.h (FT_MulFix) [FT_MULFIX_ASSEMBLER]: Add
casts.
* include/internal/ftcalc.h (FT_HYPOT): Move macro from here...
* include/internal/ftobjs.h: ... to here, next to required `FT_ABS'.
* src/smooth/ftgrays.c (gray_render_cubic): Use it here.
We no longer need an otherwise unused typedef that can cause a gcc
warning.
Problem reported by Alexei.
* src/cff/cffobjs.c (cff_driver_init): Use
`CFF_CONFIG_OPTION_DARKENING_PARAMETER_XXX' macros directly.
(SET_DARKENING_PARAMETERS): Removed.
Compile time tests are now ...
* devel/ftoption.h, include/config/ftoption.h: ... here.
* include/internal/ftcalc.h (FT_HYPOT): Macro to approximate Euclidean
distance with the alpha max plus beta min algorithm.
* src/base/ftcalc.c (ft_corner_is_flat): Use it instead of Taxicab metric.
We have been hit by
https://connect.microsoft.com/VisualStudio/feedback/details/718976/msvc-pr
* devel/ftoption.h, include/config/ftoption.h: Replace
`CFF_CONFIG_OPTION_DARKENING_PARAMETERS' with eight macros
`CFF_CONFIG_OPTION_DARKENING_PARAMETER_{X,Y}{1,2,3,4}'.
* src/cff/cffobjs.c (SET_DARKENING_PARAMETERS): Removed. We no
longer need double expansion.
(SET_DARKENING_PARAMETERS_0): Renamed to ...
(SET_DARKENING_PARAMETERS): ... this.
Update call.
* devel/ftoption.h, include/config/ftoption.h
(CFF_CONFIG_OPTION_DARKENING_PARAMETERS): New macro.
* src/cff/cffobjs.c (SET_DARKENING_PARAMETERS,
SET_DARKENING_PARAMETERS_0): New macros.
(cff_driver_init): Use new macros.
This fixes a 13-year old bug. The original overflow check should have
been updated when rounding was introduced into this function
(c2cd00443b).
* src/base/ftcalc.c (FT_DivFix) [!FT_LONG64]: Updated.
* include/freetype.h (FT_DivFix): Updated documentation.
* include/freetype.h (FT_MulFix): Unconditionally defined.
* src/base/ftcalc.c [FT_MULFIX_ASSEMBLER]: Move code from here...
* include/internal/ftcalc.h [FT_MULFIX_ASSEMBLER]: ... to here,
which conditionally replaces the function with an inline version
through the macro.
* src/pfr/pfrobjs.c (pfr_face_get_kerning): Use `FT_MSB' instead of
`ft_highpow2'.
* src/base/ftutil.c, include/internal/ftobjs.h (ft_highpow2): Remove
it.
FT_MulFix assembler used to reside in ftcalc.c before f47d263f1b.
* include/config/ftconfig.h, builds/unix/ftconfig.in,
builds/vms/ftconfig.h [FT_MULFIX_ASSEMBLER]: Move code from here...
* src/base/ftcalc.c [FT_MULFIX_ASSEMBLER]: ... to here.
=========================
Tag sources with `VER-2-5-3'.
* docs/VERSION.DLL: Update documentation and bump version number to
2.5.3.
* 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/2.5.2/2.5.3/, s/252/253/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 3.
* builds/unix/configure.raw (version_info): Set to 17:2:11.
* CMakeLists.txt (VERSION_PATCH): Set to 3.
* docs/CHANGES: Updated.
The fragmented resources in Suitcase and .dfont should be reordered
when post resource for Type1 is being restored, but reordering of
sfnt resources induces the different face order. Now the ordering
is restricted to post resource only, to prevent the different order
issue (e.g. the face index in the fontconfig cache generated with
Carbon framework is incompatible with that by FreeType2 without
Carbon framework.) Found by Khaled Hosny and Hin-Tak Leung.
http://lists.gnu.org/archive/html/freetype-devel/2013-02/msg00035.htmlhttp://lists.gnu.org/archive/html/freetype-devel/2013-12/msg00027.html
* src/base/ftrfork.c (FT_Raccess_Get_DataOffsets): Add a switch
`sort_by_res_id' to control the fragmented resource ordering.
* include/internal/ftrfork.h: Daclare new switch.
* src/base/ftobjs.c (IsMacResource): Enable the soring for post
resource, and disable the sorting for sfnt resource.
Coverages are the interface to the HarfBuzz library to access
OpenType features for handling glyphs not addressable by the cmap.
Right now, compilation of HarfBuzz is only added to the development
build. A solution for standard build mode will be delayed until
HarfBuzz gets split into two libraries to avoid mutual dependencies
between FreeType and HarfBuzz.
Note that this is only a first step in handling coverages, basically
providing the framework only. Code for handling selected OpenType
features (this is, actually using the data in `afcover.h') will
follow.
* devel/ftoption.h, include/config/ftoption.h
(FT_CONFIG_OPTION_USE_HARFBUZZ): New macro.
* src/autofit/hbshim.c, src/autofit/hbshim.h, src/autofit/afcover.h:
New files.
* src/autofit/afscript.h: Add HarfBuzz script name tags.
* src/autofit/afstyles.h: Add default coverage enumeration values.
* src/autofit/aftypes.h: Update use of `SCRIPT' and `STYLE' macros.
(AF_Coverage): New enumeration (generated by `afcover.h').
(AF_StyleClassRec): New member `coverage'.
(AF_DEFINE_STYLE_CLASS): Updated.
* include/internal/fttrace.h: Add `afharfbuzz' for tracing coverage
data.
* src/autofit/afglobal.h: Update use of `SCRIPT' and `STYLE' macros.
(AF_SCRIPT_FALLBACK): Renamed to ...
(AF_STYLE_FALLBACK): ... this.
* src/autofit/afglobal.c: Include `hbshim.c'.
Update use of `SCRIPT' and `STYLE' macros.
(af_face_globals_compute_style_coverage)
[FT_CONFIG_OPTION_USE_HARFBUZZ]: Call `af_get_coverage'.
Update.
* src/autofit/afmodule.h (AF_ModuleRec):
s/fallback_script/fallback_style/.
* src/autofit/afmodule.c (af_property_set): Adapt handling of
`fallback-script' property to set a fallback style.
(af_property_get, af_autofitter_init): Updated.
* src/autofit/afpic.c: Update use of `SCRIPT' and `STYLE' macros.
* src/autofit/afranges.h: Update use of `SCRIPT' macro.
* src/autofit/autofit.c [FT_CONFIG_OPTION_USE_HARFBUZZ]: Include
`hbshim.c'.
* src/autofit/rules.mk (AUTOF_DRV_SRC): Add `hbshim.c'.
(AUTOF_DRV_H): Add `afcover.h'.
* builds/freetype.mk (INCLUDE_FLAGS) [DEVEL_DIR]: Use pkg-config for
all libraries needed by FreeType.
* include/internal/ftrfork.h (CONST_FT_RFORK_RULE_ARRAY_BEGIN): Fix
generated function name.
* src/base/basepic.c (FT_Init_Table_raccess_guess_table): Rename
to ...
(FT_Init_Table_ft_raccess_guess_table): ... this so that the
function name correctly corresponds to what the macro framework
expects.
* src/psnames/rules.mk (PSNAMES_DRV_SRC_S): Use correct file name so
that PIC functions are compiled also.
Problem reported by David Kastrup <dak@gnu.org>.
Surprisingly, a description how to do that was completely missing in
the API reference.
* include/freetype.h, include/ftchapters.h: New documentation
section `header_inclusion'.
We now follow the `official' announcement from Microsoft (on the
OpenType mailing list, which unfortunately hasn't a public archive).
* include/freetype/tttables.h (TT_OS2):
s/usLowerPointSize/usLowerOpticalPointSize/,
s/usUpperPointSize/usUpperOpticalPointSize/.
* src/sfnt/ttload.c (tt_face_load_os2): Update, and set correct
default values.
This large patch changes the header file directory layout from
`include/freetype/...' to `include/...', effectively removing one
level. Since the file `ft2build.h' is also located in `include'
(and it stays there even after installation), all FreeType header
files are now in a single directory.
Applications that use (a) `freetype-config' or FreeType's
`pkg-config' file to get the include directory for the compiler, and
(b) the documented way for header inclusion like
#include <ft2build.h>
#include FT_FREETYPE_H
...
don't need any change to the source code.
* include/freetype/*: Move up to...
* include/*: ... this directory.
* builds/amiga/include/freetype/*: Move up to...
* builds/amiga/include/*: ... this directory.
*/*: Essentially do `s@/freetype/@/@' where appropriate.
* CMakeList.txt: Simplify.
* builds/unix/freetype-config.in, builds/unix/freetype2.in: For
`--cflags', return a single directory.
* builds/unix/install.mk (install): No longer try to remove `cache'
and `internal' subdirectories; instead, remove the `freetype'
subdirectory.
Simply apply the patch from the bug report.
* builds/unix/ftconfig.in, builds/vms/ftconfig.h,
include/freetype/config/ftconfig.h: The used #pragma directives only
work with gcc versions 4.6 and higher.
See
http://typedrawers.com/discussion/470/new-microsoft-size-specific-design-selection-mechanism
for the announcement.
* include/freetype/tttables.h (TT_OS2): Add fields
`usLowerPointSize' and `usUpperPointSize'. Since FreeType returns
this structure only as a pointer through `FT_Get_Sfnt_Table', there
shouldn't be any ABI problems.
* src/sfnt/ttload.c (tt_face_load_os2): Implement it.
* docs/CHANGES: Updated.
When using `ADD' with an immediate operand, the instruction is
actually `ADD Rd, Rn, #<imm12>', that is, the maximum of the
immediate operand cannot exceed 4095. It will fail to compile with
LLVM.
However, in GCC, due to some legacy compatibility considerations,
`ADD.W' will be automatically emitted when the immediate operand is
larger than 4095.
* builds/unix/ftconfig.in, include/freetype/config/ftconfig.h
(FT_MulFix_arm) [__GNUC__]: Support clang compiler.
* src/truetype/ttinterp.c (TT_MulFix14_arm) [__GNUC__]: Ditto.
We simply synthesize a SFNT from the WOFF, create a memory stream
for the new data, and load the SFNT as usual.
Does NOT add any API to access WOFF metadata or private blocks.
* include/freetype/internal/tttypes.h (WOFF_HeaderRec,
WOFF_TableRec): New structures.
* include/freetype/tttags.h (TTAG_wOFF): New macro.
* src/base/ftobjs.c (FT_Open_Face): Set `stream' after calling
`open_face'.
* src/sfnt/sfobjs.c [FT_CONFIG_OPTION_SYSTEM_ZLIB]: Include
`FT_GZIP_H'.
(WRITE_BYTE, WRITE_USHORT, WRITE_ULONG): New temporary macros for
writing to a stream.
(sfnt_stream_close, compare_offsets, woff_open_font): New functions.
(sfnt_open_font): Handle `TTAG_wOFF'.
(sfnt_init_face): Set `stream' after calling `sfnt_open_font'.
* src/truetype/ttobjs.c (tt_face_init): Set `stream' after calling
`sfnt->init_face'.
* src/base/ftobjs.c (open_face): Use a pointer to FT_Stream as an
argument so that a changed stream survives.
Update callers.
This is modeled after zlib's `uncompress' function. We need this
for WOFF support.
* include/freetype/ftgzip.h, src/gzip/ftgzip.c (FT_Gzip_Uncompress):
New function.
* src/gzip/rules.mk: Rewrite to better reflect dependencies.
When building for ARMv7 with thumb2 instructions, the optimized
`FT_MulFix_arm' assembly routine was not being used.
The reason for this is in the `ftconfig.h' header, namely:
- The assembly routine uses the `smull' instruction which is not
available when generating Thumb-1 machine code. It is available
in Thumb-2 mode, though.
- The header was written a long time ago before Thumb-2 became
widely popular (e.g. with Android). So it simply doesn't use the
assembly routine if the `__thumb__' built-in macro is defined.
- When compiling in Thumb-2 mode, the compiler will define both
`__thumb__' and `__thumb2__'.
By checking for `(__thumb2__ || !__thumb__)', we ensure that the
assembly routine is only avoided when generating Thumb-1 code.
Given that this is performance-sensitive function, this improves
`ftbench' as follows on a Galaxy Nexus:
Before (us/op) After (us/op)
- loading Arial.ttf glyphs at 14 ppem [1]
Load 34.285 33.098
- same operation with the light auto-hinter [2]
Load 31.317 29.590
- same operation without hinting [3]
Load 6.143 5.376
- loading Arial.ttf advances at 14 ppem [4]
Load_Advances (normal) 34.216 33.016
Load_Advances (fast) 0.176 0.176
[1] ftbench -t 5 -p -s 14 -b a -f 0008 Arial.ttf
[2] ftbench -t 5 -p -s 14 -b a -r 1 -f 0028 Arial.ttf
[3] ftbench -t 5 -p -s 14 -b a -f 000a Arial.ttf
[4] ftbench -t 5 -p -s 14 -b b -f 0008 Arial.ttf
* builds/unix/ftconfig.in, include/freetype/config/ftconfig.h
(FT_MULFIX_ASSEMBLER): Fix handling for ARMv7.
If memory allocations fail at certain points while opening a font,
FreeType can either crash due to a NULL dereference or leak memory.
* include/freetype/internal/ftobjs.c (FT_Face_InternalRec,
FT_LibraryRec): Make `refcount' a signed integer. If, for example,
FT_Open_Face() fails in a memory allocation before the face's
reference count is set to 1, a subsequent `FT_Done_Library' call
would otherwise loop over `FT_Done_Face' 2^32 times before freeing
the face.
* src/base/ftobjs.c (open_face): Initialize `stream' and friends
earlier.
(FT_Open_Face) <Fail>: Behave correctly if `node' is NULL.
(FT_Destroy_Module) <Fail>: Check that `renderer_clazz' is valid.
* include/freetype/internal/ftdebug.h: Move pragmas to...
* include/freetype/internal/internal.h: ... this file since it gets
included by all source files.
* include/freetype/internal/ftserv.h: Remove pragma which has no
effect.
* include/freetype/internal/ftdebug.h: Remove pragmas.
* include/freetype/internal/ftserv.h: Use push and pop for pragmas.
* include/freetype/internal/ftvalid.h: Handle warning C4324.
* src/base/ftobjs.c: Use push and pop for pragmas.
* src/gzip/ftgzip.c: Handle warning C4244.
This controls whether the old FreeType CFF engine gets compiled into
FreeType. It is now disabled by default.
* devel/ftoption.h, include/freetype/config/ftoption.h
(CFF_CONFIG_OPTION_OLD_ENGINE): New macro.
* src/cff/cffdrivr.c (cff_property_set), src/cff/cffgload.c
(CFF_Operator, cff_argument_counts, cff_builder_add_point,
cff_operator_seac, cff_decoder_parse_charstrings, cff_slot_load),
src/cff/cffgload.h, src/cff/cffobjs.c (cff_driver_init): Use
CFF_CONFIG_OPTION_OLD_ENGINE to guard the affected code.
* docs/CHANGES: Updated.
A new load flag, FT_LOAD_COLOR, makes FreeType load color
embedded-bitmaps, following this draft specification
https://color-emoji.googlecode.com/git/specification/v1.html
which defines two new SFNT tables, `CBDT' and `CBLC' (named and
modeled after `EBDT' and `EBLC', respectively). The color bitmaps
are stored in the new FT_PIXEL_MODE_BGRA format to represent BGRA
pre-multiplied sRGB images. If PNG support is available, PNG color
images as defined in the same proposed specification are supported
also.
Note that color bitmaps are converted to grayscale if client didn't
ask for color.
* builds/unix/configure.raw: Search for libpng.
Add `--without-png' option.
* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_CONFIG_OPTION_USE_PNG): New macro.
* include/freetype/freetype.h (FT_LOAD_COLOR): New load flag.
* include/freetype/ftimage.h (FT_Pixel_Mode): Add
`FT_PIXEL_MODE_BGRA'.
* include/freetype/tttags.h (TTAG_CBDT, TTAG_CBLC): New tags.
* src/base/ftbitmap.c (FT_Bitmap_Embolden): Updated.
(ft_gray_for_premultiplied_srgb_bgra): New function.
(FT_Bitmap_Convert): Handle FT_PIXEL_MODE_BGRA.
* src/sfnt/pngshim.c, src/sfnt/pngshim.h: New files.
* src/sfnt/sfnt.c: Include `pngshim.c'.
* src/sfnt/ttsbit.c: Include FT_BITMAP_H and `pngshim.h'
(tt_face_load_eblc): Load `CBLC'.
(tt_sbit_decoder_init): Load `CBDT'.
(tt_sbit_decoder_alloc_bitmap): Pass load flags to select between
color and grayscale bitmaps.
Set `num_grays'. This is used by `ftview' to choose the blending
algorithm.
(tt_sbit_decoder_load_byte_aligned,
tt_sbit_decoder_load_bit_aligned, tt_sbit_decoder_load_compound,
tt_sbit_decoder_load_image): Pass load flag.
s/write/pwrite/.
Don't call `tt_sbit_decoder_alloc_bitmap'.
Updated.
(tt_sbit_decoder_load_png) [FT_CONFIG_OPTION_USE_PNG]: New function.
(tt_sbit_decoder_load_bitmap): Pass load flag.
Handle new glyph formats 17, 18, and 19.
Call `tt_sbit_decoder_alloc_bitmap'.
Flatten color bitmaps if necessary.
(tt_face_load_sbit_image): Updated.
* src/sfnt/rules.mk (SFNT_DRV_SRC): Add `pngshim.c'.
* docs/CHANGES: Updated.
This makes the option TT_CONFIG_OPTION_SUBPIXEL_HINTING controllable
at runtime.
* src/truetype/ttdriver.c: Include FT_TRUETYPE_DRIVER_H.
(tt_property_set, tt_property_get): Fill templates.
* src/truetype/ttobjs.h (TT_DriverRec): Add `interpreter_version'
member.
Remove unused `extension_component' member.
* src/truetype/ttgload.c: Include FT_TRUETYPE_DRIVER_H.
(tt_get_metrics, TT_Hint_Glyph, TT_Process_Simple_Glyph,
compute_glyph_metrics, tt_loader_init): Use `interpreter_version'.
* src/truetype/ttinterp.c: Include FT_TRUETYPE_DRIVER_H.
(SUBPIXEL_HINTING): New macro to check `interpreter_version' flag.
Update all affected functions to use it.
Use TT_INTERPRETER_VERSION_XXX where appropriate.
* src/truetype/ttobjs.c: Include FT_TRUETYPE_DRIVER_H.
(tt_driver_init): Initialize `interpreter_version'.
* src/truetype/ttsubpix.c: Include FT_TRUETYPE_DRIVER_H.
Use TT_INTERPRETER_VERSION_XXX where appropriate.
==========================
Tag sources with `VER-2-4-12'.
* docs/VERSION.DLL: Update documentation and bump version number to
2.4.12.
* README, Jamfile (RefDoc),
builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html,
builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html,
builds/win32/vc2010/freetype.vcxproj, builds/win32/vc2010/index.html,
builds/win32/visualc/freetype.dsp,
builds/win32/visualc/freetype.vcproj,
builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp,
builds/win32/visualce/freetype.vcproj,
builds/win32/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/2.4.11/2.4.12/, s/2411/2412/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 12.
* builds/unix/configure.raw (version_info): Set to 16:1:10.
* include/freetype/internal/ftstream.h: Simplify and fix integer
extraction macros.
(FT_INT8_, FT_BYTE_I16, FT_BYTE_I32, FT_INT8_I16, FT_INT8_I32,
FT_INT8_I32, FT_INT8_U32): Removed.
(FT_PEEK_SHORT, FT_PEEK_LONG, FT_PEEK_OFF3, FT_PEEK_SHORT_LE,
FT_PEEK_LONG_LE, FT_PEEK_OFF3_LE): Use unsigned values for
computations and convert to signed as the last step.
* src/cff/cf2fixed.h (cf2_intToFixed, cf2_fixedToInt,
cf2_fracToFixed): Avoid shifts of negative values.
(cf2_intToFrac, cf2_fixedToFrac, cf2_fixedTo26Dot6): Removed,
unused.
* src/cff/cf2intrp.c (cf2_interpT2CharString) <cf2_cmdEXTENDEDNMBR,
default>: Use unsigned values for computations and convert to signed
as the last step.
Use proper types in tracing messages.
* src/cff/cffgload.c (cff_decoder_parse_charstrings): Use unsigned
values for computation of operands and convert to signed as the last
step.
Use proper type in tracing message.
This work, written by Dave Arnold <darnold@adobe.com> and fully
integrated into FreeType by me, is a donation by Adobe in
collaboration with Google. It is vastly superior to the old CFF
engine, and it will replace it soon. Right now, it is still off by
default, and you have to explicitly select it using the new
`hinting-engine' property of the cff driver.
For convenience, (most of) the new files are committed separately.
* include/freetype/config/ftheader.h (FT_CFF_DRIVER_H): New macro.
* include/freetype/ftcffdrv.h: New file to access CFF driver
properties.
* include/freetype/fterrdef.h (FT_Err_Glyph_Too_Big): New error
code.
* include/freetype/internal/fttrace.h: Add `cf2blues', `cf2hints',
and `cf2interp'.
* src/cff/cffgload.h (CFF_SubFont): New member `current_subfont'.
* src/cff/cffobjs.h (CFF_DriverRec): New members `hinting_engine'
and `no_stem_darkening'.
* src/cff/cfftypes.h (CFF_FontRec): New member `cf2_instance'.
* src/cff/cff.c: Include new files.
* src/cff/cffdrivr.c (cff_property_set, cff_property_get): Handle
`hinting-engine' and `no-stem-darkening' properties (only the Adobe
engine listens to them).
* src/cff/cffgload.c: Include `cf2ft.h'.
(cff_decoder_prepare): Initialize `current_subfont'.
(cff_build_add_point): Handle Adobe engine which uses 16.16
coordinates.
(cff_slot_load): Handle FT_LOAD_NO_SCALE and FT_LOAD_NO_HINTING
separately.
Choose rendering engine based on `hinting_engine' property.
* src/cff/cffload.c (cff_font_done): Call finalizer of the Adobe
engine.
* src/cff/cffobjs.c: Include FT_CFF_DRIVER_H.
(cff_driver_init): Set default property values.
* src/cff/rules.mk (CFF_DRV_SRC, CFF_DRV_H): Add new files.
* src/cff/cf2*.*: New files, containing the Adobe engine.
Use `FT2_DEBUG=bitmap:3' for tracing.
* src/base/md5.c, src/base/md5.h: New files, taken from
http://openwall.info/wiki/people/solar/software/public-domain-source-code/md5
* include/freetype/internal/fttrace.h: Add `bitmap'.
* src/base/ftobjs.c [FT_DEBUG_LEVEL_TRACE]: Include `md5.c'
(FT_Render_Glyph_Internal) [FT_DEBUG_LEVEL_TRACE]: For tracing,
convert resulting bitmap to a uniform format and compute a checksum.
Use `bitmap' category for the tracing message.
* src/base/rules.mk (BASE_H): Updated.
* docs/LICENSE.TXT: Updated.
* include/freetype/internal/ftserv.h (FT_DEFINE_SERVICEDESCREC7):
New macro.
* src/cff/cffdrivr.c: Include FT_SERVICE_PROPERTIES_H.
(cff_property_set, cff_property_get): New function, still empty.
Define `cff_service_properties' service.
Update `cff_services'.
* src/cff/cffpic.h: Include FT_SERVICE_PROPERTIES_H.
(CFF_SERVICE_PROPERTIES_GET): New macro.
CffModulePIC: Add `cff_service_properties'.
The idea is to replace code like
return FT_Err_Foo_Bar;
or
return CFF_Err_Foo_Bar;
with
return FT_THROW( Foo_Bar );
The FT_THROW macro has two functions:
. It hides the module specific prefix.
. In debug mode, it calls the empty function `FT_Throw' which can
be thus used to set a breakpoint.
* include/freetype/internal/ftdebug.h (FT_THROW): New macro.
(FT_Throw): New prototype.
* src/base/ftdebug.c (FT_Throw): New function.
The idea is to always have FT_ERR_PREFIX available internally.
* include/freetype/fterrors.h: Use FT2_BUILD_LIBRARY to guard
undefinition of FT_ERR_PREFIX
* src/gxvalid/gxverror.h, src/otvalid/otverror.h,
src/sfnt/sferrors.h: Updated.
* include/freetype/fttrigon.h (FT_Hypot): Declare it.
* src/base/fttrigon.c (FT_Hypot): Define it.
* src/truetype/ttgload.c (TT_Process_Composite_Component): Use it
instead of explicit expressions.
* src/truetype/ttinterp.c (Current_Ratio, Normalize): Use it instead
of TT_VecLen.
(TT_VecLen): Removed.
After the next release we are going to remove the code completely.
* devel/ftoption.h, include/freetype/config/ftoption.h
(FT_CONFIG_OPTION_OLD_INTERNALS): Comment out.
* docs/CHANGES: Document it.
Problem reported by Robin Watts <robin.watts@artifex.com>.
* src/base/ftoutln.c (FT_Outline_New_Internal): Ensure that
`numContours' and `numPoints' fit into FT_Outline's `n_points' and
`n_contours', respectively.
* include/freetype/internal/ftserv.h (FT_SERVICE_UNAVAILABLE): Use
`logical not' operator instead of negation. The idea is that `~'
returns exactly the data type enforced by the cast to a pointer (be
it 32bit or 64bit or whatever), while a negative integer has not
this flexibility.
* src/cache/ftccmap.c (FTC_CMAP_UNKNOWN): Ditto.
* src/truetype/ttgxvar.c (ALL_POINTS, TT_Get_MM_Var): Ditto.
* src/type/t1load.c (T1_Get_MM_Var): Ditto.
(parse_blend_axis_types): Use cast.
* src/bdf/bdflib.c (_bdf_readstream): Use cast.
* src/psaux/psconv.c: Include FT_INTERNAL_DEBUG_H.
(FT_COMPONENT): Define.
(PS_Conv_Strtol): Return FT_Long.
Handle bad data and overflow.
Emit some tracing messages in case of error.
(PS_Conv_ToInt): Return FT_Long.
(PS_Conv_ToFixed): Updated.
* src/psaux/psconv.h: Updated.
* include/freetype/internal/fttrace.h: Add `psconv'.
The auto-hinter's latin module only handles latin ligatures in the
`Alphabetical Presentation Forms' block.
* src/autofit/aflatin.c (af_latin_uniranges): Fix it.
* include/freetype/fterrdef.h (FT_Err_Missing_Property): New error
code.
* include/freetype/ftmodapi.h (FT_Property_Set, FT_Property_Get):
New API.
* include/freetype/internal/services/svprop.h: New file.
* include/freetype/internal/ftserv.h (FT_SERVICE_PROPERTIES_H): New
macro.
* src/base/ftobjs.c: Include FT_SERVICE_PROPERTIES_H.
(ft_property_do, FT_Property_Set, FT_Property_Get): New functions.
Problem reported by Peter Breitenlohner and Akira Kakuto.
* include/freetype/config/ftstdlib.h (ft_setjmp): Updated.
* src/sfnt/ttcmap.c (tt_face_build_cmaps): Remove cast.
* include/freetype/internal/ftcalc.h (FT_MulDiv_No_Round): Don't
enclose with `TT_USE_BYTECODE_INTERPRETER'; we now need the function
elsewhere also.
* src/autofit/afcjk.h: Use AF_CONFIG_OPTION_CJK.
* src/truetype/ttgload.c (tt_loader_init): Fix compiler warning.
* src/truetype/ttinterp.c (Ins_MSIRP): Fix compiler warning.
* src/truetype/ttinterp.h: Use
TT_CONFIG_OPTION_BYTECODE_INTERPRETER.
This is the large, famous `Infinality' patch to support ClearType
bytecode which has been available from
http://www.infinality.net/blog/ for some time, and which has been
refined over the last years. While still experimental, it is now
mature enough to be included directly into FreeType.
Most of the code is based on the ClearType whitepaper written by
Greg Hitchcock
http://www.microsoft.com/typography/cleartype/truetypecleartype.aspx
which gives a detailed overview of the necessary changes to the
Microsoft rasterizer so that older fonts are supported. However, a
lot of details are still missing, and this patches provides a
framework to easily handle rendering issues down to the glyph level
of certain fonts.
Note that ClearType support is not completely implemented! In
particular, full support for the options `compatible_widths',
`symmetrical_smoothing, and `bgr' (via the GETINFO bytecode
instruction) is missing.
* src/truetype/ttsubpix.c: New file, providing code to handle
`tweaks', this is, rules for certain glyphs in certain fonts
(including wildcards) which need a special treatment.
* src/truetype/ttsubpix.h: New file, holding the tweaking rules.
* include/freetype/config/ftoption.h, src/devel/ftoption.h
(TT_CONFIG_OPTION_SUBPIXEL_HINTING): New macro.
* include/freetype/internal/ftobjs.h (FT_PIX_FLOOR_GRID,
FT_PIX_ROUND_GRID, FT_PIX_CEIL_GRID): New macros.
* src/truetype/truetype.c [TT_USE_BYTECODE_INTERPRETER]: Include
`ttsubpix.c'.
* src/truetype/ttgload.c: Include `ttsubpix.h'.
[All changes below are guarded by TT_CONFIG_OPTION_SUBPIXEL_HINTING.]
(tt_get_metrics): Set tweak flags.
(TT_Hint_Glyph): Call `FT_Outline_EmboldenXY' if necessary.
(TT_Process_Simple_Glyph): Compensate emboldening if necessary.
(compute_glyph_metrics): Handle `compatible widths' option.
(tt_loader_init): Handle ClearType GETINFO information bits.
* src/truetype/rules.mk (TT_DRC_SRC): Updated.
* src/truetype/ttinterp.c: Include `ttsubpix.h'.
[Where necessary, changes below are guarded by
TT_CONFIG_OPTION_SUBPIXEL_HINTING.]
(Direct_Move, Direct_Move_X): Extended.
(Round_None, Round_To_Grid, Round_To_Half_Grid, Round_Down_To_Grid,
Round_Up_To_Grid, Round_To_Double_Grid, Round_Super, Round_Super_45,
SetSuperRound): Add parameter to handle the number of grid lines per
pixel.
(SET_SuperRound, ROUND_None, CUR_Func_round): Updated.
(DO_SROUND, DOS45ROUND, DO_ODD, DO_EVEN): Updated.
(DO_ROUND, DO_NROUND): Updated.
(DO_RS): Take care of `Typeman' bytecode patterns.
(Ins_FDEF): Add some debugging code. Commented out.
(Ins_ENDF): Restore state.
(Ins_CALL, Ins_LOOPCALL): Handle inline delta functions.
(Ins_MD): Handle `Vacuform' rounds.
(Move_Zp2_Point, Ins_SHPIX, Ins_MSIRP, Ins_MDAP, Ins_MIAP,
Ins_MDRP, Ins_MIRP): Handle tweaks.
(Ins_ALIGNRP): Add tweak guard.
(Ins_IUP, Ins_DELTAP): Handle tweaks.
(Ins_GETINFO): Handle new ClearType bits.
(TT_RunIns): Handle tweaks.
* src/truetype/ttinterp.h: Updated.
(SPH_TweakRule, SPH_ScaleRule): New structures for tweaks.
(TT_ExecContextRec): Add members for subpixel hinting support.
* src/truetype/ttobjs.h (TT_DefRecord): Add `inline_delta' member.
==========================
Tag sources with `VER-2-4-10'.
* docs/VERSION.DLL: Update documentation and bump version number to
2.4.10.
* README, Jamfile (RefDoc),
builds/win32/vc2005/freetype.vcproj, builds/win32/vc2005/index.html,
builds/win32/vc2008/freetype.vcproj, builds/win32/vc2008/index.html,
builds/win32/vc2010/freetype.vcxproj, builds/win32/vc2010/index.html,
builds/win32/visualc/freetype.dsp,
builds/win32/visualc/freetype.vcproj,
builds/win32/visualc/index.html, builds/win32/visualce/freetype.dsp,
builds/win32/visualce/freetype.vcproj,
builds/win32/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/2.4.9/2.4.10/, s/249/2410/.
* include/freetype/freetype.h (FREETYPE_PATCH): Set to 10.
* builds/unix/configure.raw (version_info): Set to 15:0:9.
* include/freetype/ftoutln.h (FT_Outline_EmboldenXY): Define it.
* src/base/ftoutln.c (FT_Outline_EmboldenXY): Implement it, using a
simplified embolding algorithm.
(FT_Outline_Embolden): Make it a special case of
`FT_Outline_EmboldenXY'
* include/freetype/internal/ftobjs.h (FT_ModuleRec, FT_LibraryRec):
Remove `generic' field since users can't access it.
* src/base/ftobjs.c (FT_Done_GlyphSlot): Call `generic.finalizer' as
advertised in the documentation of FT_Generic.
(Destroy_Module, FT_Done_Library): Updated to changes in `ftobjs.h'.
Based on the patch provided by Erik Dahlstrom <ed@opera.com>,
http://lists.gnu.org/archive/html/freetype-devel/2012-01/msg00010.html
Also `raccess_guess_table[]' and `raccess_rule_by_darwin_vfs()'
are renamed with `ft_' suffixes.
* src/base/ftbase.h: `raccess_rule_by_darwin_vfs()' is renamed
to `ft_raccess_rule_by_darwin_vfs()'.
* src/base/ftobjs.c: Ditto.
* src/base/ftrfork.c: Declarations of FT_RFork_Rule,
raccess_guess_rec, are moved to...
* include/freetype/internal/ftrfork.h: Here.
* include/freetype/internal/ftrfork.h:
FT_RFORK_RULE_ARRAY_{BEGIN,ENTRY,END} macros are defined
to replace raccess_guess_table[] in both of PIC and non-PIC
modes.
* src/base/ftrfork.c: raccess_guess_table[] array is rewritten
by FT_RFORK_RULE_ARRAY_{BEGIN,ENTRY,END}.
* src/base/basepic.h (BasePIC): Add `ft_raccess_guess_table'
storage. (FT_RACCESS_GUESS_TABLE_GET): New macro to retrieve
the function pointer from `ft_raccess_guess_table' storage in
`BasePIC' structure.
* src/base/ftrfork.c (FT_Raccess_Guess): Rewritten with
FT_RACCESS_GUESS_TABLE_GET.
(raccess_get_rule_type_from_rule_index): Add `library' as the
first argument to the function, to retrieve the storage of
`ft_raccess_guess_table' from it. Also `raccess_guess_table'
is replaced by FT_RACCESS_GUESS_TABLE_GET.
(ft_raccess_rule_by_darwin_vfs): Ditto.
Originally FT_DEFINE_{DRIVER,MODULE,RENDERER}() macros were
designed to declare xxx_pic_{free,init} by themselves.
Because these macros are used at the end of the module
interface (e.g. ttdriver.c) and the wrapper source to build
a module as a single object (e.g. truetype.c) includes
the PIC file (e.g. ttpic.c) before the module interface,
these macros are expanded AFTER xxx_pic_{free,init} body
when the modules are built as single object.
The declaration after the implementation causes the redundant
declaration warnings, so the declarations are moved to module
PIC headers (e.g. ttpic.h). Separating to other header files
are needed for multi build.
* include/freetype/internal/ftdriver.h (FT_DEFINE_DRIVER):
Remove class_##_pic_free and class_##_pic_init declarations.
* include/freetype/internal/ftobjs.h (FT_DEFINE_RENDERER,
FT_DEFINE_MODULE): Ditto.
* src/base/basepic.h: Insert a comment and fix coding style.
* src/autofit/afpic.h: Declare autofit_module_class_pic_{free,
init}.
* src/cff/cffpic.h: Declare cff_driver_class_pic_{free,init}.
* src/pshinter/pshpic.h: Declare pshinter_module_class_pic_{free,
init}.
* src/psnames/pspic.h: Declare psnames_module_class_pic_{free,
init}.
* src/raster/rastpic.h: Declare
ft_raster{1,5}_renderer_class_pic_{free,init}
* src/sfnt/sfntpic.h: Declare sfnt_module_class_pic_{free,init}.
* src/smooth/ftspic.h: Declare
ft_smooth_{,lcd_,lcdv_}renderer_class_pic_{free,init}.
* src/truetype/ttpic.h: Declare tt_driver_class_pic_{free,init}.
Originally FT_MACINTOSH was a pure auto macro and DARWIN_NO_CARBON
was a configurable macro to disable Carbon-dependent code. Because
now configure script sets DARWIN_NO_CARBON by default and disables
Darwin & Carbon-dependent codes, these macros can be unified.
FT_MACINTOSH (undefined by default) is kept and DARWIN_NO_CARBON
(defined by default) is removed, because DARWIN_NO_CARBON violates
FT_XXX naming convention of public macros, and a macro configured by
default is not portable for the building without configure (e.g.
make devel).
* builds/unix/configure.raw: Define FT_MACINTOSH if Carbon-based
old Mac font support is requested and Carbon is available.
* builds/unix/ftconfig.in: Undefine FT_MACINTOSH when the support
for Mac OS X without Carbon (e.g. Mac OS X 10.4 for ppc64) is
requested.
* include/freetype/config/ftconfig.in: Ditto.
* builds/vms/ftconfig.h: Ditto.
* src/base/ftbase.h: Remove DARWIN_NO_CARBON.
* src/base/ftbase.c: Ditto.
* src/base/ftobjs.c: Ditto.
* src/base/ftrfork.c: Ditto.
* src/base/ftmac.c: Compile the body if FT_MACINTOSH is defined
(same with TT_USE_BYTECODE_INTERPRETER in ttinterp.c).
* builds/mac/ftmac.c: Ditto.
* builds/mac/FreeType.m68k_cfm.make.txt: Define FT_MACINTOSH.
* builds/mac/FreeType.m68k_far.make.txt: Ditto.
* builds/mac/FreeType.ppc_classic.make.txt: Ditto.
* builds/mac/FreeType.ppc_carbon.make.txt: Ditto.
Previously, FreeType misleadingly returned
FT_Err_Unknown_File_Format if a module was missing (or a test was
missing completely).
* include/freetype/fterrdef.h (FT_Err_Missing_Module): Define.
* src/cff/cffobjs.c (cff_face_init), src/cid/cidobjs.c
(cid_face_init), src/sfnt/sfobjs.c (sfnt_init_face),
src/truetype/ttobjs.c (tt_face_init), src/type1/t1objs.c
(T1_Face_Init), src/type42/t42objs.c (T42_Face_Init,
T42_Driver_Init): Updated.
* src/type1/t1afm.c (T1_Read_Metrics), src/type/t1objs.c
(T1_Face_Init), src/type42/t42objs.c (T42_Face_Init): Remove now
redundant test for `psaux'.
This allows a Type 1 font face to be interrogated to retrieve most
of the dictionary keys (keys not relevant to FreeType's Type 1
interpreter are not available).
* include/freetype/internal/services/svpsinfo.h
(PS_GetFontValueFunc): New typedef.
(PSInfo): Add `ps_get_font_value'.
(FT_DEFINE_SERVICE_PSINFOREC): Updated.
* include/freetype/internal/t1types.h (T1_EncodingType): Moved to...
* include/freetype/t1tables.h: Here.
(PS_Dict_Keys): New enumeration.
(FT_Get_PS_Font_Value): New declaration.
* src/base/fttype1.c (FT_Get_PS_Font_Value): New function.
* src/type1/t1driver.c (t1_ps_get_font_value): This new function
does the real job.
(t1_service_ps_info): Add it.
* src/cff/cffdrivr.c (cff_service_ps_info), src/cid/cidriver.c
(cid_service_ps_info), src/type42/t42drivr.c (t42_service_ps_info):
Updated.
* include/freetype/config/ftstdlib.h (FT_USHORT_MAX): New macro.
* src/base/ftbitmap.c (FT_Bitmap_Convert): Protect against invalid
value of `target->rows'.
* src/psaux/t1decode.c (t1_decoder_parse_charstrings): Add check for
flex start.
* src/raster/ftrend1.c (ft_raster1_render): Check `width' and
`height'.
* src/truetype/ttgxvar.c (TT_Vary_Get_Glyph_Deltas): Protect against
invalid values in `localpoints' array.
The main problems
-----------------
o If FT_STROKER_LINEJOIN_BEVEL was specified, unlimited miter
joins (not bevel joins) were generated. Indeed, the meanings of
`miter' and `bevel' were incorrectly reversed (consistently) in
both the code and comments.
o The way bevel joins were constructed (whether specified
explicitly, or created as a result of exceeding the miter limit)
did not match what is required for stroked text in PostScript or
PDF.
The main fixes
--------------
o The behaviour of FT_STROKER_LINEJOIN_BEVEL has been corrected.
o A new line join style, FT_STROKER_LINEJOIN_MITER_FIXED, has been
introduced to support PostScript and PDF miter joins.
o FT_STROKER_LINEJOIN_MITER_VARIABLE has been introduced as an
alias for FT_STROKER_LINEJOIN_MITER.
Additionally, a variety of stroking errors have been fixed. These
would cause various artifacts (including points `at infinity'),
especially when stroking poor quality fonts.
See
http://lists.gnu.org/archive/html/freetype-devel/2011-07/msg00001.html
for example documents. The FreeType stroker now produces results
very similar to that produced by GhostScript and Distiller for these
fonts.
Other problems
--------------
The following problems have been resolved:
o Inside corners could be generated incorrectly. Intersecting the
inside corner could cause a missing triangular area and other
effects.
The intersection point can only be used if the join is between
two lines and both lines are long enough. The `optimization'
condition in `ft_stroker_inside' has been corrected; this
requires the line length to be passed into various functions and
stored in `FT_StrokerRec'.
o Incorrect cubic curves could be generated. The angle
calculations in `FT_Stroker_CubicTo' have been corrected to
handle the case of the curve crossing the +/-PI direction.
o If the border radius was greater than the radius of curvature of
a curve, then the negative sector would end up outside (not
inside) the border. This situation is now recognized and the
negative sector is circumnavigated in the opposite direction.
(If round line joins are being used, this code is disabled
because the line join will always cover the negative sector.)
o When a curve is split, the arcs may not join smoothly (especially
if the curve turns sharply back on itself). Changes in
direction between adjacent arcs were not handled. A round
corner is now added if the deviation from one arc to the next is
greater than a suitable threshold.
o The current direction wasn't retained if a the outline contained
a zero length lineto or a curve that was determined to be
`basically a point'. This could cause a spurious join to be
added.
o Cubics with close control points could be mishandled. All eight
cases are now distinguished correctly.
Other improvements
------------------
o Borders for cubic curves could be too `flat'.
FT_SMALL_CUBIC_THRESHOLD has been reduced a little to prevent
this.
o The handling and use of movable points has been simplified a
little.
o Various values are now computed only if the results are actually
needed.
o The directions of the outer and inner borders have been swapped,
as recommended by Graham Asher.
* src/base/ftstroke.c: Revised.
* include/freetype/ftstroke.h: Updated.
The native SDK on earliest Mac OS X (10.0-10.1) did not have
"AvailabilityMacros.h". To prevent the inclusion of missing
header file, ECANCELED (introduced in 10.2) in POSIX header
file <errno.h> is checked to detect the system version.
* include/freetype/config/ftconfig.h: Conditionalize the
inclusion of "AvailabilityMacros.h".
* builds/unix/ftconfig.in: Ditto.
* builds/vms/ftconfig.h: Ditto.
To remove extremas of vertical strokes of CJK Ideographs at
low resolution and make the top and bottom horizontal stems
aligned, bluezones for CJK Ideographs are calculated from
sample glyphs. At present, vertical bluezones (bluezones
to align vertical stems) are disabled by default. For detail, see
http://lists.gnu.org/archive/html/freetype-devel/2011-04/msg00070.htmlhttp://lists.gnu.org/archive/html/freetype-devel/2011-04/msg00092.htmlhttp://lists.gnu.org/archive/html/freetype-devel/2011-05/msg00001.html
* include/freetype/internal/fttrace.h: New trace component `afcjk'.
* src/autofit/afcjk.h (AF_CJK{Blue,Axis,Metric}Rec): Add CJK version
for AF_Latin{Blue,Axis,Metric}Rec.
(af_cjk_metrics_check_digits): Ditto, shared with Indic module.
(af_cjk_metrics_init_widths): Ditto.
(af_cjk_metrics_init): Take AF_CJKMetric instead of AF_LatinMetric.
(af_cjk_metrics_scale): Ditto (declaration).
(af_cjk_hints_init): Ditto (declaration).
(af_cjk_hints_apply): Ditto (declaration).
* src/autofit/afcjk.c (af_cjk_metrics_scale): Ditto (body).
(af_cjk_hints_init): Ditto (body).
(af_cjk_hints_apply): Ditto (body).
(af_cjk_metrics_init_widths): Duplicate af_latin_metrics_init_widths.
(af_cjk_metrics_check_digits): Duplicate af_latin_metrics_check_digits.
(af_cjk_metrics_init): Call CJK bluezone initializer.
(af_cjk_metrics_scale_dim): Add code to scale bluezones.
(af_cjk_hints_compute_blue_edges): New function, CJK version of
af_latin_hints_compute_blue_edges.
(af_cjk_metrics_init_blues): New function, CJK version of
af_latin_metrics_init_blues.
(af_cjk_hints_edges): Add code to align the edge stems to blue zones.
* src/autofit/afindic.c (af_indic_metrics_init): Take AF_CJKMetric
instead of AF_LatinMetric, and initialize as af_cjk_metrics_init.
However bluezones are not initialized.
(af_indic_metrics_scale): Take AF_CJKMetric instead of AF_LatinMetric.
(af_indic_hints_init): Ditto.
(af_indic_hints_apply): Ditto.
* docs/CHANGES: Note about CJK bluezone support.
This makes FT_LOAD_IGNORE_GLOBAL_ADVANCE_WIDTH redundant,
deprecated, and ignored. The new behavior is what every major user
of FreeType has been requesting. Global advance is broken in many
CJK fonts. Just ignoring it by default makes most sense.
* src/truetype/ttdriver.c (tt_get_advances),
src/truetype/ttgload.c (TT_Get_HMetrics, TT_Get_VMetrics,
tt_get_metrics, compute_glyph_metrics, TT_Load_Glyph),
src/truetype/ttgload.h: Implement it.
* docs/CHANGES: Updated.
Werner Lemberg