Commit Graph

4491 Commits

Author SHA1 Message Date
Werner Lemberg 6732f05593 Implement `FT_Palette_Get'.
* src/base/ftcolor.c: New file.

* src/base/Jamefile (_sources), src/base/rules.mk (BASE_SRC),
src/base/ftbase.c: Add `ftcolor.c'.
2018-06-10 09:13:13 +02:00
Werner Lemberg 56be5f721b * src/sfnt/ttcolr.c (tt_face_load_colr): Improve overflow checks. 2018-06-10 06:59:39 +02:00
Alexei Podtelezhnikov 50fda0be3f [raster] Deal with pitch sign earlier.
* src/raster/ftraster.c (black_TWorker): Remove unused `traceG',
s/bTarget/bOrigin/.
(Render_Glyph): Set `ras.bOrigin' at the bottom-left corner.
(Vertical_Sweep_Init, {Vertical,Horizontal}_Sweep_{Span,Drop}):
Updated accordingly.
2018-06-09 22:52:43 -04:00
Werner Lemberg c412de52fb [sfnt] Read `CPAL' version 1 tables.
* include/freetype/internal.tttypes.h: Include FT_COLOR_H.
(TT_FaceRec): Add `palette' field.

* src/sfnt/ttcolr.c: Include FT_COLOR_H.
(Cpal): Remove all data covered by the new `palette' field in
`TT_FaceRec'.
(tt_face_load_colr): Updated.
Read `CPAL' version 1 data.
(tt_face_load_colr_layers, tt_face_find_color): Updated.

* src/sfnt/sfobjs.c (sfnt_done_face): Free glyph color palette data.
2018-06-09 23:56:21 +02:00
Alexei Podtelezhnikov 8f1ed54877 [base] API for Harmony LCD rendering.
This introduces `FT_Library_SetLcdGeometry' for setting up arbitrary
LCD subpixel geometry including non-striped patterns.

* src/base/ftlcdfil.c (FT_Library_SetLcdGeometry): New function.
* include/freetype/ftlcdfil.h: Document it.
* include/freetype/freetype.h: Minor.
* include/freetype/ftchapters.h: Minor.
2018-06-07 02:48:48 -04:00
Werner Lemberg f87ced9dc9 ftcolor.h: Redesign API.
While going to implement it I noticed that I need access to most of
the `CPAL' elements; I thus plan to add a `cpal' field to
`TT_FaceRec', which makes most of the previously suggested API
functions obsolete because the fields will be directly accessable.
2018-06-06 17:49:17 +02:00
Werner Lemberg 172904ee3a Minor. 2018-06-06 13:29:09 +02:00
Parth Wazurkar 89d2f42918 [bdf, pcf] Removed deprecated FT_FACE_FLAG_FAST_GLYPHS flag.
* src/bdf/bdfdrivr.c (BDF_Face_Init): Removed deprecated FT_FACE_FLAG_FAST_GLYPHS flag.

* src/pcf/pcfread.c  (pcf_load_font): Removed deprecated FT_FACE_FLAG_FAST_GLYPHS flag.
2018-06-06 16:53:54 +05:30
Werner Lemberg ca4e707aa1 [smooth, raster] Limit bitmap size (#54019).
* src/raster/ftraster.c [STANDALONE] (FT_Outline_Get_CBox): Add
function.
[!STANDALONE]: Include FT_OUTLINE_H.
(ft_black_render): Compute CBox and reject glyphs larger than
0xFFFF x 0xFFFF.

* src/smooth/ftgrays.c (gray_raster_render): Reject glyphs larger
than 0xFFFF x 0xFFFF.
2018-06-06 08:18:23 +02:00
Armin Hasitzka 80ac364530 * src/smooth/ftgrays.c (gray_convert_glyph): Remove unused variables. 2018-06-03 18:31:58 +02:00
Werner Lemberg 02842872de * src/tools/glnames.py (main): Emit header in `light' comment style. 2018-06-03 09:17:55 +02:00
Alexei Podtelezhnikov ae24803410 [smooth] Attempt to mitigate bug #54019.
The robust rendering of estra large glyphs came with unbearable cost.
The old way of bisecting should fail but fail faster.

* src/smooth/ftgrays.c (gray_convert_glyph): Switch back to bisecting
in y-direction.
2018-06-02 21:42:44 -04:00
Werner Lemberg 67994e8221 * src/truetype/ttinterp.c (Ins_MIRP): Use SUB_LONG; avoid FT_ABS.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8706
2018-06-02 19:51:03 +02:00
Werner Lemberg fab10b6fc2 * src/autofit/afwarp.h: Use AF_CONFIG_OPTION_USE_WARPER (#54033). 2018-06-02 09:53:58 +02:00
Werner Lemberg 125b84800a * src/raster/ftraster.c (black_TWorker_): Remove `gTarget' field.
This is no longer used.
2018-05-31 10:49:05 +02:00
Werner Lemberg 0589f6e6ee [sfnt] Get colors from `CPAL' table in right order (#54015).
* src/sfnt/ttcolr.c (tt_face_find_color): Fix it.
2018-05-31 00:34:38 +02:00
Werner Lemberg db7c406084 ftcolor.h: Improve API design, fix typos (#54011, #54014).
* include/freetype/ftcolor.h (FT_Palette_Get_Names): Replace with...
(FT_Palette_Get_Name_IDs): ... this function.
(FT_Palette_Get_Entry_Names): Replace with...
(FT_Palette_Get_Entry_Name_IDs): ... this function
s/FT_Palette_Set_Foreground_COlor/FT_Palette_Set_Foreground_Color/.
2018-05-30 21:23:10 +02:00
Armin Hasitzka d45d4b97e6 Beautify a3cfed5e87.
* src/autofit/afloader.c (af_loader_load_glyph): Move the
initialisation and declaration of variables into the if-block.
2018-05-30 17:38:14 +02:00
Armin Hasitzka a3cfed5e87 Fix pointer underflow.
The declaration of `edge2' can be reached with `edge1 == NULL' and
`axis->edges == 0' which results in undefined behaviour.

* src/autofit/afloader.c (af_loader_load_glyph): Initialise `edge2'
after checking `axis->num_edges > 1'.  `edge1 != NULL' can be assumed.
2018-05-30 12:37:46 +02:00
Werner Lemberg ae2cd1b749 Various minor color fixes.
* include/freetype/config/ftheader.h (FT_COLOR_H): New macro.

* include/freetype/internal/ftobjs.h (FT_Colr_Internal): Change
type of `load_flags' to `FT_Int32'.

* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func): Change
type of `idx' to `FT_UInt'.
(TT_Blend_Colr_Func): Change type of `color_index' to `FT_UInt'.

* src/base/ftobjs.c (FT_Render_Glyph_Internal): Change type of
`load_flags' to `FT_Int32'.

* src/sfnt/ttcolr.c (find_base_glyph_record,
tt_face_load_colr_layers): Change type of `glyph_id' to `FT_UInt'.
(tt_face_find_color, tt_face_colr_blend_layer): Change type of
`color_index' to `FT_UInt'.
Fix signedness and type issues.

* src/sfnt/ttcolr.h: Updated.
2018-05-30 09:34:57 +02:00
Nikhil Ramakrishnan 51fee65583 [docmaker] Fix missing `Defined in (...)' under Windows/Cygwin.
This platform uses backslashes for paths, which docmaker didn't
understand correctly.

* src/tools/docmaker/tohtml.py (HtmlFormatter::blockEnter): Use
`os.path.normpath' to normalize the path for the platform being
used.
2018-05-25 22:19:18 +02:00
Alexei Podtelezhnikov 7b73cb0707 [smooth] Formalize Harmony LCD rendering.
This generalizes magic outline shifts that make Harmony LCD
rendering work in terms of precise two-dimensional RGB subpixel
positions. These coordinates are now set in time of the `smooth'
module initialization and later used to shift a glyph outline for
rendering. FT_RENDER_MODE_LCD and FT_RENDER_MODE_LCD_V use the same
coordinates. The letter, however, rotates them before using.
The LCD bitmap padding is also calculated using these coordinates.

* include/freetype/internal/ftobjs.h (FT_LibraryRec): New array field
`lcd_geometry'.
* src/base/ftlcdfil.c (ft_lcd_padding): Reworked.
* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): Updated accordingly.

* src/smooth/ftsmooth.c [!FT_CONFIG_OPTION_SUBPIXEL_RENDERING]
(ft_smooth_init): Initialize `lcd_geometry'.
(ft_smooth_render_generic): Formalize outline shifts.
2018-05-24 22:38:24 -04:00
Werner Lemberg 3360ca5853 [truetype] Reject elements of composites with invalid glyph indices.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8413

* src/truetype/ttgload.c (TT_Load_Composite_Glyph): Implement it.
2018-05-22 09:06:24 +02:00
Werner Lemberg 3c99016f8f * src/truetype/ttgload.c (TT_Load_Simple_Glyph): Trace # of points. 2018-05-22 07:53:49 +02:00
Werner Lemberg 93363cd737 * include/freetype/ftcolor.h: New file.
This is an interface to the `CPAL' OpenType table.  No
implementation yet.
2018-05-20 22:50:36 +02:00
Alexei Podtelezhnikov 2f218a4c3a * include/freetype/internal/ftcalc.h (FT_MSB): Verified `_MSC_VER'.
Actually `_BitScanReverse' is available since VS2005.
2018-05-18 08:57:30 -04:00
Werner Lemberg 840b844301 * include/freetype/internal/ftcalc.h (FT_MSB): Use `_MSC_VER' value.
Older VC versions don't provide `_BitScanReverse'.  We test for VC
2013.

Reported by John Emmas <john@creativepost.co.uk>.
2018-05-18 10:57:51 +02:00
Werner Lemberg 3331b84fc2 Minor comment fixes. 2018-05-18 07:19:57 +02:00
Werner Lemberg 2cac1c3542 s/inline/__inline/ for MSVC.
Reported by John Emmas <john@creativepost.co.uk>.

* include/freetype/internal/ftcalc.h (FT_MSB) [_MSC_VER]: Do it.
2018-05-17 19:40:44 +02:00
Werner Lemberg 583dabf291 Add function `FT_Get_GlyphLayers' to access `COLR' table data.
* include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec): Move this
structure to...
* include/freetype/freetype.h (FT_Glyph_LayerRec): ... this
header file.
(FT_Glyph_Layer): New typedef.
Update code to use it where appropriate.

* src/base/ftobjs.c (FT_Get_GlyphLayers): New function.
2018-05-16 21:21:18 +02:00
Alexei Podtelezhnikov f1458d2e44 [base] Fix mono bitmap presetting (#53896).
It is rather fundamental to set monochrome bitmap based on rounded
CBox because the b/w rasterizer turns on pixels when their centers are
inside the glyph outline. The dropout control is unpredictable and can
distort narrow glyphs if the bitmap is too wide.

Reported by Chris Liddell.

* src/base/ftobjs.c (ft_glyphslot_preset_bitmap): If BBox boundaries
are too close, adjust them before rounding.
2018-05-15 21:47:18 -04:00
Werner Lemberg 49c5e24a14 [psaux] Fix compiler warning (#53915).
* src/psaux/psft.c (cf2_freeT1SeacComponent): Do it.
2018-05-15 21:55:28 +02:00
Werner Lemberg befee11296 [sfnt] Fix memory leak in handling `COLR' data.
* src/truetype/ttgload.c (TT_Load_Glyph): Free old `layers' array
before reassigning allocated memory.
Only allocate `color_layers' if we don't have one already.
2018-05-15 17:01:22 +02:00
Werner Lemberg 2dd2091611 [sfnt] If `COLR' is present, don't assume that all glyphs use it.
* src/sfnt/ttcolr.c (tt_face_load_colr_layers): Return FT_Err_Ok if
current glyph is not a `COLR' base glyph.

* src/truetype/ttgload.c (TT_Load_Glyph): Don't allocate
`color_layers' if there are no color layers.
2018-05-15 09:06:58 +02:00
Werner Lemberg 06820637e2 * src/base/ftobjs.c (FT_Load_Glyph): Fix signature of `pixel_modes'. 2018-05-14 09:45:16 +02:00
Werner Lemberg c5a8a5350a Provide dummy functions if `TT_CONFIG_OPTION_SFNT_NAMES' is not set.
* src/base/ftsnames.c [!TT_CONFIG_OPTION_SFNT_NAMES]: Implement it.
2018-05-14 09:43:38 +02:00
Werner Lemberg 1b2abda9d2 * src/base/ftobjs.c (FT_Load_Glyph): Improve tracing. 2018-05-13 10:58:49 +02:00
Shao Yu Zhang f04d81751a [sfnt] Preliminary support of coloured layer outlines.
This commit enables OpenType's COLR/CPAL table handling; a typical
application are color emojis that can be scaled to any size.

If the color palette does not exist or is invalid, the rendering
step rasterizes the outline instead.  The current implementation
assumes that the foreground is black.

Enable this by defining option TT_CONFIG_OPTION_COLOR_LAYERS.

There are still some issues with metrics; additionally, an API to
fetch color layers is missing.

* devel/ftoption.h, include/freetype/config/ftoption.h
(TT_CONFIG_OPTION_COLOR_LAYERS): New macro.

* include/freetype/internal/ftobjs.h (FT_Glyph_LayerRec,
FT_Colr_InternalRec): New structures.
(FT_Slot_InternalRec): Add `color_layers' field.

* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func,
TT_Blend_Colr_Func): New function types.
(SFNT_Interface): Add `load_colr', `free_colr', `load_colr_layer',
and `colr_blend' fields.

* include/freetype/internal/tttypes.h (TT_FaceRec): Add
`colr_and_cpal' field.

* include/freetype/internal/tttags. (TTAG_COLR, TTAG_CPAL): New
macros.

* src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: New files.

* src/base/ftobjs.c (ft_glyphslot_done, FT_Render_Glyph_Internal):
Handle glyph color layers.

* src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC): Add
`ttcolr.c'.

* src/sfnt/sfdriver.c: Include `ttcolr.h'.
(PUT_COLOR_LAYERS): New macro.
Update call to `FT_DEFINE_SFNT_INTERFACE'.

* src/sfnt/sfnt.c: Include `ttcolr.c'.

* src/sfnt/sfobjs.c (sfnt_load_face): Load `COLR' and `CPAL' tables.
(sfnt_done_face): Updated.

* src/truetype/ttgload.c (TT_Load_Glyph): Handle color layers.
2018-05-13 03:25:09 +02:00
Arkady Shapkin 84eebf4802 Use MS VC++'s _BitScanReverse to calculate MSB (patch #9636).
* include/freetype/internal/ftcalc.h (FT_MSB) [_MSC_VER]: Implement
it.
2018-05-12 06:18:07 +02:00
Alan Coopersmith 9e345c9117 Further fix to visibility flag testing with Solaris Studio compilers.
AC_COMPILE_IFELSE only tries to compile a `*.c' to a `*.o'.  The
Solaris Studio 12.1 through 12.5 compilers see the
`-fvisibility=hidden' flag, but ignore it with a warning of:

  cc: Warning: Option -fvisibility=hidden passed to ld,
               if ld is invoked, ignored otherwise

AC_LINK_IFELSE does the compile and then tries to link the result,
at which point the Solaris linker will issue an error:

  ld: fatal: option '-fvisibility=hidden' is incompatible with
      building a dynamic executable

If we don't use AC_LINK_IFELSE to catch the error, then configure
will fail further tests which attempt to link, such as those testing
dependencies like `libbz2'.

Also, don't try adding `-fvisibility' if we have already added
`-xldscope', just use one of them, since Sun Studio 12 and earlier
compilers only issue a warning, and don't try passing through to the
linker to generate an error, so AC_LINK_IFELSE doesn't catch them.

Tested on Solaris 11.4 beta with compiler versions:

  Sun Studio 8 (Sun C 5.5)
  Sun Studio 10 (Sun C 5.7)
  Sun Studio 11 (Sun C 5.8)
  Sun Studio 12 (Sun C 5.9)
  Sun Studio 12.1 (Sun C 5.10)
  Oracle Solaris Studio 12.2 (Sun C 5.11)
  Oracle Solaris Studio 12.3 (Sun C 5.12)
  Oracle Solaris Studio 12.4 (Sun C 5.13)
  Oracle Developer Studio 12.5 (Sun C 5.14)
  Oracle Developer Studio 12.6 (Sun C 5.15)
  gcc 5.5.0
  gcc 7.3.0

and verified the libfreetype.so.6 generated by each of those
compilers exported the same set of symbols.

* builds/unix/configure.raw: Implement it.
2018-05-10 10:13:18 +02:00
Werner Lemberg e0015f7612 [autofit] Avoid potential SEGV if running out of memory.
Problem reported by Shailesh Mistry <shailesh.mistry@hotmail.co.uk>.

* src/autofit/afshaper.c (af_shaper_buf_create,
af_shaper_buf_destroy) [!FT_CONFIG_OPTION_USE_HARFBUZZ]: Don't
allocate and free a four-byte buffer.  Instead, make those functions
no-ops; the calling functions will provide a pointer to a buffer
instead.

* src/autofit/afcjk.c (af_cjk_metrics_init_widths,
af_cjk_metrics_init_blues, af_cjk_metrics_check_digits),
src/autofit/aflatin.c (af_latin_metrics_init_widths,
af_latin_metrics_init_blues, af_latin_metrics_check_digits)
[!FT_CONFIG_OPTION_USE_HARFBUZZ]: Use pointer to local variable for
`shaper_buf'.
2018-05-08 11:51:16 +02:00
Nikolaus Waxweiler f7b4fb3a21 CMake: Allow using project as subfolder in other project
* CMakeLists.txt: Test for CMake build directory being diffent from
source directory. Provide other parts of the build system access the
full include directory.
2018-05-08 07:46:19 +01:00
Werner Lemberg 7702edf793 [build] Suppress configure's `nothing to be done' message.
This is due to calling the configure script via `make' (within the
top-level `configure' wrapper script).  The same can happen for all
other secondary make targets that are used to only modify the
primary one, e.g., `make setup devel'.

* builds/dos/detect.mk (emx, turboc, watcom, borlandc, borlandc16),
builds/os2/detect (visualage, watcom, borlandc, devel),
builds/unix/detect.mk (devel, lcc, unix), builds/windows/detect.mk
(visualc, watcom, visualage, lcc, mingw32, bcc32, devel-bcc,
devel-gcc): Use no-op recipe.
2018-05-07 08:54:34 +02:00
suzuki toshiya 2b3e0ef6c0 Support symbol visibility features of Sun / Oracle C compilers.
Reported by Kiyoshi Kanazawa:
https://lists.gnu.org/archive/html/freetype-devel/2018-05/msg00008.html
Thanks to the suggestions by Alexei and Alan Coopersmith.

* builds/unix/configure.raw: Check if "-xldscope=hidden" is
accepted, and if so, it is added to CFLAGS.  This is the option
making Sun / Oracle C compilers hide the symbols from global
scope.
* include/freetype/config/ftconfig.h: Use "__global" prefix
for FT_EXPORT() macro, if SunPro C is newer than Sun ONE
Studio 8 (2003).
* builds/unix/ftconfig.in: Ditto.
* builds/vms/ftconfig.h: Ditto.
2018-05-04 12:55:48 +09:00
Nikolaus Waxweiler 660afb5ce8 Unbreak CMake Windows installation
* CMakeLists.txt: Generate ftconfig.h on non-UNIX.
2018-05-02 23:39:28 +01:00
Werner Lemberg 9514959241 Remove FT_CONFIG_OPTION_PIC and related code.
*/* [FT_CONFIG_OPTION_PIC]: Remove all code guarded by this
preprocessor symbol.

*/*: Replace `XXX_GET' macros (which could be either a function in
PIC mode or an array in non-PIC mode) with `xxx' arrays.

* include/freetype/internal/ftpic.h, src/autofit/afpic.c,
src/autofit/afpic.h, src/base/basepic.c, src/base/basepic.h,
src/base/ftpic.c, src/cff/cffpic.c, src/cff/cffpic.h,
src/pshinter/pshpic.c, src/pshinter/pshpic.h, src/psnames/pspic.c,
src/psnames/pspic.h, src/raster/rastpic.c, src/raster/rastpic.h,
src/sfnt/sfntpic.c, src/sfnt/sfntpic.h, src/smooth/ftspic.c,
src/smooth/ftspic.h, src/truetype/ttpic.c, src/truetype/ttpic.h:
Removed.
2018-05-02 20:27:48 +02:00
Werner Lemberg 86bc8a9505 * Version 2.9.1 released.
=========================

Tag sources with `VER-2-9-1'.

* docs/VERSION.TXT: Add entry for version 2.9.1.
* docs/CHANGES: Updated.

* README, Jamfile (RefDoc), builds/windows/vc2005/freetype.vcproj,
src/base/ftver.rc, 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/2.9/2.9.1/, s/29/291/.

* include/freetype/freetype.h (FREETYPE_PATCH): Set to 1.

* builds/unix/configure.raw (version_info): Set to 22:1:16.
* CMakeLists.txt (VERSION_PATCH): Set to 1.

* include/freetype/ftgasp.h: Use FT_BEGIN_HEADER and FT_END_HEADER.
2018-05-01 20:37:24 +02:00
Werner Lemberg ac97a29653 Another fix for handling invalid format 2 cmaps.
Sigh.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8003

* src/sfnt/ttcmap.c (tt_cmap2_char_next): Adjust condition to avoid
an endless loop.
2018-04-26 09:04:39 +02:00
Ben Wagner 2157d8fa6f [base] Avoid undefined behaviour in lcd filtering code (#53727).
* src/base/ftlcdfil.c (ft_lcd_filter_fir, _ft_lcd_filter_legacy):
Ensure `height > 0'.
2018-04-24 10:29:19 +02:00
Werner Lemberg 67697d0076 * src/base/ftoutln.c (FT_Outline_Decompose): Improve error tracing. 2018-04-22 21:15:10 +02:00