Commit Graph

7045 Commits

Author SHA1 Message Date
Anuj Verma 56d27d32c4 [sdf] Add 'sdf' renderer.
* src/sdf/ftsdf.c: Add 'sdf' renderer along with its interface
functions.
Also add functions to set and get properties.
2020-12-24 07:23:47 +01:00
Anuj Verma 216270327d [sdf] Add common elements for 'sdf' and 'bsdf' renderers.
* src/sdf/ftsdfrend.h (SDF_Rendere_Module, ft_sdf_renderer_class,
ft_bitmap_sdf_renderer_class): New structures.

* src/sdf/ftsdfcommon.h (DEFAULT_SPREAD, MIN_SPREAD_MAX_SPREAD,
USE_SQUARED_DISTANCES): New macros.
(FT_INT_26D6, FT_INT_16D16, FT_26D6_16D16): New macros.
(FT_CALL, VECTOR_LENGTH_16D16): New macros.
(FT_26D6_Vec, FT_16D16_Vec, FT_16D16, FT_26D6, FT_6D10, FT_CBox):
New typedefs.
(square_root): New macro.

* src/sdf/ftsdferrs.h: Add module error setup.
2020-12-24 07:23:47 +01:00
Anuj Verma cd6ff28a17 [sdf] Add files for new 'sdf' module.
Here is a breakdown of what the files will contain.

* src/sdf/ftsdfrend.c, src/sdf/ftsdfrend.h: The 'sdf' and 'bsdf'
renderers.

* src/sdf/ftsdf.c, src/sdf/ftsdf.h: The rasterizer for the 'sdf'
renderer.
* src/sdf/ftbsdf.c, src/sdf/ftbsdf.h: The rasterizer for the 'bsdf'
renderer.

* src/sdf/ftsdfcommon.h: Commmon properties and functions for both
rasterizers.
* src/sdf/ftsdferrs.h: Common error defines.

* src/sdf/sdf.c: For building a single object of the entire module.
2020-12-24 07:23:47 +01:00
Anuj Verma 5a1b9d014b [base] Allow renderers of different formats.
* src/base/ftobjs.c (FT_Render_Glyph_Internal): Do not return if the
glyph's slot format is `FT_GLYPH_FORMAT_BITMAP`.  The forthcoming
'bsdf' renderer will require bitmaps for processing.

* src/base/ftobjs.c (ft_add_renderer, ft_remove_renderer): Remove
renderer's glyph format check before adding and removing them.  The
'bsdf' renderer will have a format `FT_GLYPH_FORMAT_BITMAP`.
2020-12-24 07:23:47 +01:00
Anuj Verma ec9b6c314d Add data types required for the forthcoming 'sdf' module.
* include/freetype/freetype.h (FT_Render_Mode): Add new render mode
`FT_RENDER_MODE_SDF`, which will be used to generate SDF.

* include/freetype/ftimage.h (FT_Pixel_Mode): Add new pixel mode
`FT_PIXEL_MODE_GRAY16`, which will be the output of the 'sdf'
module.
(FT_RASTER_FLAG_SDF): New raster flag to be used internally by the
'sdf' module.

* include/freetype/fttypes.h (FT_F6Dot10): New data type.
2020-12-24 07:23:47 +01:00
Anuj Verma 3b9196c467 [base] Allow renderers of different formats.
* src/base/ftobjs.c (FT_Render_Glyph_Internal): Do not return if the
glyph's slot format is `FT_GLYPH_FORMAT_BITMAP`.  The forthcoming
'bsdf' renderer will require bitmaps for processing.

* src/base/ftobjs.c (ft_add_renderer, ft_remove_renderer): Remove
renderer's glyph format check before adding and removing them.  The
'bsdf' renderer will have a format `FT_GLYPH_FORMAT_BITMAP`.
2020-12-24 07:23:47 +01:00
Werner Lemberg 2373074a2c * builds/windows/detect.mk (COPY): Make it work with `shell`.
Without this patch, we get the error

  builds/toplevel.mk:127: *** missing separator.  Stop.

Reported by Anuj, with a solution from Alexei.
2020-12-23 22:02:48 +01:00
Ignacio Casal Quinteiro 768022b98e meson.build (ft2_defines): Fix builds on Windows. 2020-12-23 11:30:19 +01:00
Tatsuyuki Ishi 0d5f1dd37c [autofit] Fix double division in stem darkening.
The old code used to divide the darkening amount by em_ratio twice,
leading to unnecessarily bold stems on certain fonts with higher
units per em (e.g. Inter). This patch fixes it.

The return value of af_loader_compute_darkening was also changed to
use 16.16 fixed point to get rid of a redundant truncation operation.
This should slightly improve the precision, although it's still
bottlenecked by the emboldening function, which uses 26.6 fixed point.

* src/autofit/afloader.[ch]
(af_loader_compute_darkening): Return FT_Fixed.
(af_loader_embolden_glyph_in_slot): Revise calculations.
2020-12-18 22:10:30 -05:00
Werner Lemberg 7bdf386e75 ftmodapi.h: Replace 0xA0 characters with spaces. 2020-12-17 22:47:05 +01:00
Alexei Podtelezhnikov c948df52e4 * include/freetype/ftmodapi.h (FT_FACE_DRIVER_NAME): New public macro.
The driver name is needed for `FT_Property_Set' and `FT_Property_Get'.
2020-12-17 15:53:51 -05:00
Alexei Podtelezhnikov 84b3616c94 Documentation edits. 2020-12-16 22:07:57 -05:00
Chris Liddell f6be92767d [truetype] Fix incremental metrics (#59503).
* src/truetype/ttgload.c (tt_get_metrics, load_truetype_glyph):
Previously, the code would populate the phantom points before
calling the `get_glyph_metrics` callback.  For formats like PCL XL
format 1, class 2 downloaded fonts (where metrics are removed from
the TTF header), this causes problems when the hinting program uses
the phantom points (misplaced and distorted glyphs) due to the
metrics being unset (all zeros).
(tt_get_metrics_incr_overrides): Renamed to...
(tt_get_metrics_incremental): ... this.  Updated caller

* include/freetype/ftincrem.h: Update the documentation to make it
clearer that `get_glyph_metrics` is to retrieve metrics from a
non-standard source, but *not* for the purpose of imposing custom
metrics.
2020-12-16 06:08:54 +01:00
Alexei Podtelezhnikov 9cc89717be Documentation edits. 2020-12-15 22:36:19 -05:00
Werner Lemberg a3edbfa983 [type42] Pacify static analysis tools (#59682).
* src/type42/t42objs.c (T42_Size_Init, T42_GlyphSlot_Init): Avoid
warnings about uninitialized variables.
2020-12-14 16:11:06 +01:00
Werner Lemberg bd6d8e4204 .mailmap: Add Priyesh. 2020-12-10 20:23:12 +01:00
Werner Lemberg 505943a6a4 * builds/unix/configure.raw: Don't set `FT_DEBUG_LOGGING`.
All debug options are handled exclusively in `ftoption.h`.
2020-12-07 17:08:37 +01:00
Werner Lemberg 272ae5ee2a * src/*: More fixes for using a '\n' in `FT_TRACE` and `FT_ERROR`. 2020-12-07 10:29:24 +01:00
Werner Lemberg 015a9b8d8f */*: s/FT_LOGGING/FT_DEBUG_LOGGING/. 2020-12-07 10:27:42 +01:00
Werner Lemberg 9f94d8533c docs/CHANGES: Mention `FT_LOGGING`. 2020-12-05 09:43:45 +01:00
Werner Lemberg 7d3ab6a7db * builds/toplevel.mk (do-dist): Remove `submodules` directory. 2020-12-05 09:43:45 +01:00
Werner Lemberg a6adb25626 * src/*: Don't use more than one '\n' in `FT_TRACE` and `FT_ERROR`.
This ensures good logging output, with all lines having a proper
prefix (if requested).
2020-12-05 09:43:45 +01:00
Werner Lemberg 74822f64b0 [base] Don't close 'stderr' after logging.
* src/base/ftdebug.c, builds/windows/ftdebug.c (ft_logging_deinit):
Fix it.
2020-12-05 09:43:45 +01:00
Werner Lemberg c764686bc9 * submodules/dlg: Updated to commit 9f0c8b22. 2020-12-05 09:43:45 +01:00
Werner Lemberg 92db149e9c * src/bdf/bdflib.c: Fix `-Wformat` warning. 2020-12-05 09:43:45 +01:00
Werner Lemberg f6b0fd7b79 Improve setup for 'dlg' library.
* autogen.sh (copy_submodule_file), builds/toplevel.mk: Redirect
stderr to `/dev/null`.

* builds/toplevel.mk: Move code block to handle 'dlg' stuff into
`check_platform` conditional.
Also fix wildcard expressions for guarding `git submodule` commands.
Also make file copying work with non-Unix platforms (untested).
2020-12-05 09:43:45 +01:00
Werner Lemberg fcdab61ed1 [build] Use gcc (and clang) in C99 mode.
Other compilers are unchanged.

* builds/compiler/gcc-dev.mk, builds/compiler/gcc.mk (ANSIFLAGS):
s/-ansi/-std=c99/.

* builds/freetype.mk (FT_CFLAGS): Remove `-std=c99`.

* builds/unix/configure.raw: Handle C99.
Remove no longer needed test for gcc 4.6 and earlier.
2020-12-05 09:43:42 +01:00
Werner Lemberg 741a690ad6 Update `.gitignore`. 2020-12-04 16:19:42 +01:00
Werner Lemberg 1c229af2d2 [dlg] Fix compiler warnings.
* src/dlg/dlgwrap.c: Duplicate some feature test macros from
`dlg.c`, which must come first before loading standard headers.  For
example, `freetype.h` loads `stdio.h` if compiled in debug mode.
2020-12-04 16:19:42 +01:00
Werner Lemberg 047f295fac Typos. 2020-12-04 16:19:42 +01:00
Werner Lemberg 7691588098 * src/type42/t42parse.c: Fix `-Wformat` warnings. 2020-12-04 16:19:42 +01:00
Priyesh Kumar 33bd25ca07 [builds/unix] Check for 'pthread' library.
* builds/unix/ax_pthread.m4: New file, taken from 'autoconf-archive'
git repository.

* builds/unix/configure.raw: Check for 'pthread'; also check whether
it works.
2020-12-04 16:19:42 +01:00
Werner Lemberg ce43d808dc [base] Implement vertical alignment of log printing.
Based on a patch by Priyesh.

* include/freetype/internal/fttrace.h (FT_MAX_TRACE_LEVEL_LENGTH):
New macro.

* src/base/ftdebug.c, builds/windows/ftdebug.c (ft_log_handler):
Print logs after a fixed width to handle different lengths of
`FT_COMPONENT` entries.
Use `ft_strrchr` to check for final newline character.
2020-12-04 16:19:42 +01:00
Priyesh Kumar ab0ea068ee Update logging related documentation.
* docs/DEBUG: Updates related to `FT_LOGGING`.

* README.git: Updates related to logging.
2020-12-04 16:19:42 +01:00
Priyesh Kumar 6d9e6b21e5 * src/*: Fix `-Wformat` warnings. 2020-12-04 16:19:42 +01:00
Priyesh Kumar 2a5d8e8ff8 [builds/windows] Changes to build 'dlg' with FreeType on Windows.
We only support Visual C++ 2010 and newer.

* builds/windows/vc2010/script.bat: New windows batch file to copy
necessary 'dlg' files from `submodules/dlg` to `src/dlg`.  This file
is used as a pre-built event in Visual C++.

* builds/windows/ftdebug.c: Synchronize with `src/base/ftdebug.c`.

* builds/windows/vc2010/freetype.vcxproj.filters: Add
`src/dlgwrap.c`.

* builds/windows/vc2010/freetype.vcxproj
(AdditionalIncludeDirectories): Add include files of dlg for 'Debug'
and 'Debug Static' configurations on both 'x64' and 'win32'
platforms.
(PreprocessorDefinitions): Add `FT_LOGGING` for 'Debug' and 'Debug
Static' configurations on both 'x64' and 'win32' platforms.
Add `DLG_STATIC' for 'Debug' configuration on 'x64' and 'win32'
platforms.
(DisableLanguageExtensions): We need to disable the `/Za` option
when building 'dlg' with FreeType as 'dlg' strictly follows the C99
standard.  Visual C++ produces behaves unexpectedly when
compiling a C99 file with `/Za` option enabled.
2020-12-04 16:19:42 +01:00
Priyesh Kumar 2a46d1f04e [base] Add public API to change log handling function.
* include/freetype/ftlogging.h (FT_Custom_Log_Handler): New function
typedef to store the custom callback logging function.
(FT_Set_Log_Handler, FT_Set_Default_Log_Handler): New functions to
set and reset custom log handler.

* include/freetype/internal/ftdebug.h (custom_output_handler): New
variable to support a custom callback logging function.
(FT_Logging_Callback): A new function typedef to print log using
custom callback logging function, which is set using
`FT_Set_Log_Handler`.
(FT_Log): Use it.

* src/base/ftdebug.c (FT_Set_Log_Handler,
FT_Set_Default_Log_Handler, FT_Logging_Callback): Add function
definitions.
2020-12-04 16:19:36 +01:00
Priyesh Kumar 5fea76cf0f [base] Add public API to change the levels of tracing components.
* include/freetype/ftlogging.h: New header file.

* include/freetype/internal/ftdebug.h [FT_LOGGING]: Include
`ftlogging.h`.

* src/base/ftdebug.c (ft_custom_trace_level): New variable.
(ft_debug_init): Update to support change of levels of tracing
components of FreeType at run-time.
(FT_Trace_Set_Level): New function to change the levels of tracing
components at run-time.
(FT_Trace_Set_Default_Level): New function to reset the levels of
tracing components back to default.
2020-12-01 09:25:53 +01:00
Priyesh Kumar d00cbc3f90 [base] Updates to print timestamp and name of `FT_COMPONENT` in logs.
* include/freetype/internal/ftdebug.h (FT_LOGGING_TAG,
FT_LOGGING_TAG_): New macros to resolve the value of `FT_COMPONENT'
into a string.
(ft_add_tag, ft_remove_tag): New functions to add and remove dlg tags.

* src/base/ftdebug.c: Add new variables to control the logging of
timestamp and name of `FT_COMPONENT` along with actual logs.
(ft_add_tag, ft_remove_tag): Add function definitions.
(ft_log_handler): Updates to print timestamp and name of
`FT_COMPONENT`.
(ft_debug_init) [FT_LOGGING]: Users can now control the logging of
timestamp and name of `FT_COMPONENT` by adding tags in the
`FT2_DEBUG` environment variable.
2020-12-01 09:25:53 +01:00
Priyesh Kumar d46bada285 [base] Add functions and variables to print logs to a file.
* include/freetype/internal/ftdebug.h: Added dlg's header files.
(FT_LOG): New macro to redirect trace logs to dlg's API's whenever
`FT_LOGGING' is defined.
(ft_logging_init, ft_logging_deinit): New functions to handle
initialization and uninitialization of logging related variables.
(ft_log_handler): New function to handle logs of FreeType.

* src/base/ftdebug.c: Add necessary logging related variables.
(ft_logging_init, ft_logging_deinit, ft_log_handler): Add function
definitions.

* src/base/ftinit.c (FT_Init_FreeType) [FT_LOGGING]: Call
`ft_logging_init`.
(FT_Done_FreeType) [FT_LOGGING]: Call `ft_logging_deinit`.

* src/base/ftobjs.c (FT_New_Library): Call `ft_debug_init` only if
`FT_LOGGING` is not defined.
2020-12-01 09:25:39 +01:00
Priyesh Kumar 34b1c897c1 [builds] Necessary changes to make 'dlg' compile.
* autogen.sh (copy_submodule_files): New script to copy all the
necessary source and include files from `submodules/dlg` to
`src/dlg`.

* src/dlg/dlgwrap.c: New wrapper file for `src/dlg.c`.  It enables
the build of 'dlg' if the `FT_LOGGING` macro is defined.

* src/dlg/rules.mk: New sub-Makefile.

* builds/freetype.mk (DLG_DIR): New variable to include the
header files of the 'dlg' library.
(INCLUDES): Add `DLG_DIR`.
(FT_CFLAGS): Add `-std=c99' flag.
Include `src/dlg/rules.mk` file to build 'dlg' library.
(OBJ_S, OBJ_M): Add `DLG_OBJS_M` and `DLG_OBJS_S`.

* builds/toplevel.mk: For builds directly from the git repository
we need to copy files from `submodule/dlg` to `src/dlg`.

* include/freetype/config/ftoption.h, devel/ftoption.h (FT_LOGGING):
New macro to enable or disable the logging facility in FreeType.
2020-12-01 09:20:32 +01:00
Priyesh Kumar 8da4b437b4 * .gitmodules: Add 'dlg' library's git repository as submodule. 2020-12-01 09:20:32 +01:00
Werner Lemberg 8cc4d0dc32 * src/tools/chktrcmp.py (trace_use_pat): Update to current use. 2020-12-01 08:48:28 +01:00
Werner Lemberg 56c610b145 builds/meson/*: Add copyright boilerplate. 2020-11-27 15:37:41 +01:00
Werner Lemberg 3facafa44e .mailmap: Updated and sorted. 2020-11-25 11:37:09 +01:00
Alexei Podtelezhnikov 5abd252a0a [cff,cid,type1] Demote old engine for lack of CFF2.
* src/cff/cffobjs.c (cff_iriver_init): Always default to Adobe engine.
* src/cid/cidobjs.c (cid_driver_init): Ditto.
* src/type1/t1objs.c (T1_Driver_Init): Ditto.
2020-11-20 15:24:42 -05:00
Alexei Podtelezhnikov 1286f58c29 Downgrade property tracing. 2020-11-20 14:54:35 -05:00
Werner Lemberg 32b14552d6 * src/type42/t42parse.c (t42_parse_sfnts): More tracing messages. 2020-11-09 21:00:45 +01:00
Werner Lemberg 26e2a89598 * meson.build: Fix .pc file generation.
For backwards compatibility we need the libtool version, not the .so
number.

Reported by Nikolaus.
2020-11-04 21:00:22 +01:00
Werner Lemberg 0bd50c9043 Typo. 2020-11-04 10:16:18 +01:00