Commit Graph

4618 Commits

Author SHA1 Message Date
Werner Lemberg c9bbc2419a Add internal functions `FT_Trace_Disable' and `FT_Trace_Enable'.
It sometimes makes sense to suppress tracing informations, for
example, if it outputs identical messages again and again.

* include/freetype/internal/ftdebug.h: Make `ft_trace_levels' a
pointer.
(FT_Trace_Disable, FT_Trace_Enable): New declarations.

* src/base/ftdebug.c (ft_trace_levels): Rename to...
(ft_trace_levels_enabled): ... this.
(ft_trace_levels_disabled): New array.
(ft_trace_levels): New pointer.
(FT_Trace_Disable, FT_Trace_Enable): Implement.
(ft_debug_init): Updated.
2018-08-08 18:12:31 +02:00
Werner Lemberg 2e3dec5509 Debugging improvements.
* src/base/ftobjs.c (pixel_modes): Move this array to top level
from ...
(FT_Load_Glyph): ... here.
(FT_Render_Glyph_Internal): Use `width' x `height' in trace message.
Use `pixel_modes'.
2018-08-08 13:51:18 +02:00
Alexei Podtelezhnikov c633378a5e [pcf] Massive unsigning (part 2).
Treat all size related properties as unsigned values.

* src/pcf/pcf.h (PCF_ParsePropertyRec): Use unsigned `name' and
`value'.
* src/pcf/pcfread.c (pcf_get_propeerties, pcf_load_font): Updated
parsing code and handling of AVERAGE_WIDTH, POINT_SIZE, PIXEL_SIZE,
RESOLUTION_X and RESOLUTION_Y.
2018-08-08 01:21:54 -04:00
Alexei Podtelezhnikov 3d4ab6bac1 [pcf] Massive unsigning (part 1).
Unofficial specifications hesitate to use unsigned 32-bit integers.
Negative values caused a lot of trouble in the past and it is safer
and easier to treat some properties as unsigned.

* src/pcf/pcf.h (PCF_AccelRec): Use unsigned values for `fontAscent',
`fontDescent', and `maxOverlap'.
* src/pcf/pcfread.c (pcf_load_font, pcf_get_accel): Updated.
* src/pcf/pcfdrivr.c (PCF_Glyph_Load, PCF_Size_Select,
PCF_Size_Request): Updated.
2018-08-08 00:09:16 -04:00
Alexei Podtelezhnikov 705bac50d3 * src/pcf/pcfread.c (pcf_get_bitmaps): Unsign `offsets' and `bitmapSizes'. 2018-08-07 22:49:55 -04:00
Werner Lemberg b09e773591 * devel/ftoption.h: Synchronize with main `ftoption.h'. 2018-08-06 11:02:51 +02:00
Alexei Podtelezhnikov f24dbb2811 [pcf] Use unsigned types.
* src/pcf/pcf.h (PCF_Encoding): Use unsigned `enc'.
* src/pcf/pcfdrivr.c (pcf_cmap_char_{index,next}): Ditto.
* src/pcf/pcfread.c (pcf_get_encodings): Use unsigned types.
2018-08-06 04:58:18 -04:00
Werner Lemberg 720ae67f35 * src/truetype/ttgload.c (compute_glyph_metrics): Fix overflow.
Reported as

  https://bugs.chromium.org/p/chromium/issues/detail?id=777151
2018-08-05 07:21:10 +02:00
Werner Lemberg be81acc4bf * src/truetype/ttinterp.c (opcode_name): Fix typos. 2018-08-04 07:01:04 +02:00
Werner Lemberg 799d27b0b6 Fix clang warnings.
* src/base/ftoutln.c (FT_Outline_EmboldenXY): Fix type of
`orientation'.

* src/gxvalid/gxvcommn.c (gx_lookup_value_read): Fix signature.

* src/pcf/pcfread.c (pcf_get_encodings): Fix type of some variables.
Add cast.

* src/type1/t1load.c (parse_weight_vector): Fix cast.
2018-08-04 06:39:11 +02:00
Werner Lemberg 1897186fb7 * src/cid/cidtoken.h: Handle `XUID' keyword. 2018-07-31 10:48:07 +02:00
Werner Lemberg 8e57746c4b [cid] Trace PostScript dictionaries.
* src/cid/cidload.c: Include FT_INTERNAL_POSTSCRIPT_AUX_H
(cid_load_keyword, cid_parse_font_matrix, parse_fd_array,
parse_expansion_factor, cid_parse_dict): Add tracing calls.
(parse_font_name): New function to trace `/FontName' keywords in
/FDArray dict.
(cid_field_records): Register `parse_font_name'.
2018-07-31 10:46:57 +02:00
Werner Lemberg 578bcf103a [cff] Fix typo.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9409

* src/cff/cffdrivr.c (cff_get_cid_from_glyph_index): Fix boundary
check.
2018-07-30 11:28:04 +02:00
Werner Lemberg 00968d8fd6 * src/pcf/pcfread.c (pcf_get_encodings): Another thinko.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9608
2018-07-29 10:22:59 +02:00
Alexei Podtelezhnikov 2c3e895c74 [smooth] Fix Harmony memory management.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9501

* src/smooth/ftgrays.c (ft_smooth_render_generic): Restore buffer
after each rendering in case of failure.
2018-07-28 22:00:59 -04:00
Werner Lemberg 6e44d78cc1 [type1] Avoid segfaults with `FT_Get_PS_Font_Value'.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9610

* src/type1/t1driver.c (t1_ps_get_font_value): Protect against NULL.
2018-07-28 22:23:16 +02:00
Werner Lemberg c9edca8ee9 [truetype] Make `TT_Set_MM_Blend' idempotent (#54388).
* src/truetype/ttgxvar.c (tt_set_mm_blend): Correctly set
`face->doblend' if the current call to the function yields the same
blend coordinates as the previous call.
2018-07-27 10:44:01 +02:00
Werner Lemberg d277bfc985 [psaux, type1]: More tracing improvements.
* src/psaux/psintrp.c (cf2_interpT2CharString): Trace skipped
outline commands.

* src/psaux/t1decode.c (t1_decoder_parse_charstring): Fix
missing case.
(t1_decoder_parse_metrics): Make tracing output more compact.

* src/type1/t1gload.c (T1_Compute_Max_Advance): Be less verbose.
(T1_Get_Advances): Add tracing.
2018-07-27 09:15:43 +02:00
Werner Lemberg 8ed5346877 [psaux, type1] Trace PostScript dictionaries and other things.
The tracing of /Encoding, /Subrs, and /Charstrings is rudimentary
right now.

* src/psaux/psobjs.c (ps_parser_load_field,
ps_parser_load_field_table): Add tracing calls.

* src/psaux/t1decode.c (t1_decoder_parse_charstrings): Make tracing
output more compact.

* src/type1/t1gload.c (T1_Compute_Max_Advance, T1_Get_Advances): Add
tracing messages.

* src/type1/t1load.c (parse_blend_axis_types,
parse_blend_design_positions, parse_blend_design_map,
parse_weight_vector, t1_load_keyword, t1_parse_font_matrix,
parse_encoding, parse_subrs, parse_charstrings, T1_Open_Face): Add
tracing calls.

* src/type1/t1objs.c (T1_Face_Init): Add tracing call.

* src/sfnt/sfobjs.c (sfnt_init_face): Make tracing message more
verbose.
2018-07-25 22:07:22 +02:00
Werner Lemberg 580c94d8f7 Fix minor ASAN run-time warnings.
* src/base/ftutil.c (ft_mem_alloc, ft_mem_realloc): Only call
`FT_MEM_ZERO' if we actually have a buffer.
(ft_mem_dup): Only call `ft_memcpy' if we actually have a buffer.
2018-07-25 07:03:07 +02:00
Alexei Podtelezhnikov 4b97ab98a8 [build] Fortify dllexport/dllimport attributes (#53969,#54330).
We no longer use predefined _DLL, which can be defined for static
builds too with /MD. We use DLL_EXPORT and DLL_IMPORT instead,
following libtool convention.

* CMakeLists.txt [WIN32], builds/windows/vc2010/freetype.vcxproj:
Define DLL_EXPORT manually.

* include/freetype/config/ftconfig.h, builds/unix/ftconfig.in,
builds/vms/ftconfig.h, builds/windows/vc2010/index.html,
src/base/ftver.rc: /_DLL/d, s/FT2_DLLIMPORT/DLL_IMPORT/.
2018-07-24 23:01:34 -04:00
Werner Lemberg d8ea52dee5 [type1] Check relationship between number of axes and designs.
For Multiple Masters fonts We don't support intermediate designs;
this implies that

  number_of_designs == 2 ^^ number_of_axes

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9557

* src/type1/t1load.c (T1_Open_Face): Ensure above constraint.
(T1_Get_MM_Var): Remove now redundant test.
2018-07-24 23:03:06 +02:00
Hin-Tak Leung 71e29fe1c9 [truetype] Match ttdebug's naming of instruction mnemonics.
* src/truetype/ttinterp.c: The form used in ttdebug,
"MDRP[G,B,W,?]", etc., is slightly more readable than
"MDRP[00,01,02,03]".
2018-07-24 10:04:23 +02:00
Werner Lemberg ff1c28f6c0 * src/pcf/pcfread.c (pcf_get_encodings): Thinko.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9561
2018-07-24 09:59:23 +02:00
Werner Lemberg b98133a4e9 * src/pcf/pcfread.c (pcf_get_encodings): Check index of defaultChar.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9527
2018-07-22 13:06:20 +02:00
Werner Lemberg 9be385c94d * src/pcf/pcfread.c (pcf_load_font): Fix number of glyphs.
This is an oversight of the module change 2018-07-21.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9524
2018-07-22 12:49:25 +02:00
Werner Lemberg a5acdce100 [cid] Sanitize `BlueShift' and `BlueFuzz'.
This code is taken from the type1 module.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9510

* src/cid/cidload.c (parse_fd_array): Set some private dict default
values.
(cid_face_open): Do the sanitizing.
Fix some tracing messages.
2018-07-22 12:11:52 +02:00
Werner Lemberg cba72a0b0f [pcf] Fix handling of the undefined glyph.
This change makes the driver use the `defaultChar' property of PCF
files.

* src/pcf/pcf.h (PCF_FaceRec): Change type of `defaultChar' to
unsigned.

* src/pcf/pcfread.c (pcf_get_encodings): Read `defaultChar' as
unsigned.
Validate `defaultChar'.
If `defaultChar' doesn't point to glyph index zero, swap glyphs with
index zero and index `defaultChar' and adjust the encodings
accordingly.

* src/pcf/pcfdrivr.c (pcf_cmap_char_index, pcf_cmap_char_next,
PCF_Glyph_Load): Undo change from 2002-06-16 which always enforced
the first character in the font to be the default character.
2018-07-21 23:45:32 +02:00
Armin Hasitzka 154832d466 Move the legacy fuzz target to the `freetype-testing' repository.
It can now be found at

  https://github.com/freetype/freetype2-testing/tree/master/fuzzing/src/legacy

* src/tools/ftfuzzer: Remove this folder and its contents from the
repository.
2018-07-20 19:32:13 +02:00
Werner Lemberg 14032290bf [cff] Avoid left-shift of negative numbers (#54322).
* src/cff/cffgload.c (cff_slot_load): Use multiplication.
2018-07-20 06:44:13 +02:00
Werner Lemberg 8f09eb5ce0 Allow FT_ENCODING_NONE for `FT_Select_Charmap'.
This is a valid encoding tag for BDF, PCF, and Windows FNT, and
there is no reason to disallow it for these formats.

* src/base/ftobjs.c (FT_Select_Charmap): Implement it.
2018-07-17 21:45:24 +02:00
Werner Lemberg 9e69987aaa * src/pcf/pcfread.c (pcf_get_encodings): Trace `defaultChar'. 2018-07-17 19:54:25 +02:00
Armin Hasitzka fda356b742 * include/freetype/internal/ftcalc.h: Add macros for handling
harmless over-/underflowing `FT_Int' values.

* src/sfnt/sfdriver.c (fixed2float): Fix negation of
`(int)(-2147483648)'.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9423
2018-07-16 18:45:23 +02:00
Werner Lemberg 839cb404cf * src/truetype/ttgxvar.c (tt_set_mm_blend): Fix off-by-one error.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9412
2018-07-16 05:47:27 +02:00
Werner Lemberg 9f15370e56 * src/base/ftoutln.c (FT_Outline_Get_Orientation): Init `cbox'.
Taken from patch #9667, written by Steve Langasek
<vorlon@debian.org>.

This fixes a build failure (most probably a bug in gcc) on ppc64el
when building with -O3.
2018-07-12 07:31:26 +02:00
Werner Lemberg b532d7ce70 Fix typo (#54238).
* src/base/ftcolor.c (FT_Palette_Set_Foreground_Color)
[!TT_CONFIG_OPTION_COLOR_LAYERS]: Add return value.
2018-07-05 23:13:35 +02:00
Werner Lemberg 0767d5362f Adjust table size comparisons (#54242).
* src/sfnt/ttcpal.c (tt_face_load_cpal): Implement it.
2018-07-05 23:05:53 +02:00
Werner Lemberg 6ceeb87f5d Fix more 32bit issues (#54208)
* src/cff/cffload.c (cff_blend_build_vector): Convert assertion into
run-time error.

* src/truetype/ttgxvar.c (ft_var_to_normalized): Protect against
numeric overflow.
2018-07-05 22:31:10 +02:00
Werner Lemberg 29f05fd02d Fix 32bit build warnings (#54239).
* src/base/ftbitmap.c (FT_Bitmap_Blend): Add casts to avoid signed
vs. unsigned comparisons.

* srb/sfnt/ttcolr.c (tt_face_get_colr_layer): Ditto.
2018-07-04 11:49:47 +02:00
Jeff Carey d9d300ab6b * src/psnames/psmodule.c (ps_unicodes_init): Fix alloc debugging. 2018-07-02 22:27:57 +02:00
Werner Lemberg 7edc937fe6 s/palette_types/palette_flags/.
Suggested by Behdad.
2018-07-02 11:50:04 +02:00
Werner Lemberg 4e3b2473d8 Make `FT_Get_Color_Glyph_Layer' return FT_Bool.
* include/freetype/freetype.h, src/base/ftobjs.c
(FT_Get_Color_Glyph_Layer, FT_Render_Glyph_Internal): Updated.

* include/freetype/internal/sfnt.h (TT_Get_Colr_Layer_Func),
src/sfnt/ttcolr.h, src/sfnt/ttcolr.c (tt_face_get_colr_layer):
Updated.
2018-07-02 11:41:44 +02:00
Werner Lemberg f6ccb524af * src/base/ftobjs.c (FT_Get_Color_Glyph_Layer): Guard SFNT function.
Reported by Behdad.
2018-07-01 12:31:57 +02:00
Alexei Podtelezhnikov 1fc776b5f1 * src/base/fttrigon.c (FT_Tan): Improve accuracy.
(FT_Vector_Rotate): Simplify.
2018-06-28 21:42:26 -04:00
Alexei Podtelezhnikov 4f11209f5c * src/base/ftobjs.c (FT_Set_Charmap): Robustify. 2018-06-28 21:31:35 -04:00
Werner Lemberg 207ca38fb5 [truetype] Fix memory leak.
* src/truetype/ttgxvar.c (TT_Vary_Apply_Glyph_Deltas): Add initializers.
Fix typo in `goto' destination.

Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9071
2018-06-25 18:50:00 +02:00
Werner Lemberg 589d1f0899 * src/truetype/ttgxvar.c (tt_face_vary_cvt): Add initializers.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=9070
2018-06-25 18:38:04 +02:00
Werner Lemberg a632fb547e [truetype] Increase precision while applying VF deltas.
It turned out that we incorrectly round CVT and glyph point deltas
before accumulation, leading to severe positioning errors if there
are many delta values to sum up.

Problem reported by Akiem Helmling <akiem@underware.nl> and analyzed
by Behdad.

* src/truetype/ttgxvar.c (ft_var_readpackeddelta): Return deltas in
16.16 format.
(tt_face_var_cvt): Collect deltas in `cvt_deltas', which is a 16.16
format array, and add the accumulated values to the CVT at the end
of the function.
(TT_Vary_Apply_Glyph_Deltas): Store data in `points_org' and
`points_out' in 16.16 format.
Collect deltas in `point_deltas_x' and `point_deltas_y', which are
16.16 format arrays, and add the accumulated values to the glyph
coordinates at the end of the function.
2018-06-24 15:22:10 +02:00
Werner Lemberg cc3333902b New base function `FT_Matrix_Check' (#54019).
* src/base/ftcalc.c (FT_Matrix_Check): New base function to properly
reject degenerate font matrices.

* include/freetype/internal/ftcalc.h: Updated.

* src/cff/cffparse.c (cff_parse_font_matrix), src/cid/cidload.c
(cid_parse_font_matrix), src/type1/t1load.c (t1_parse_font_matrix),
src/type42/t42parse.c (t42_parse_font_matrix): Use
`FT_Matrix_Check'.
2018-06-24 06:26:09 +02:00
Werner Lemberg d7393e22ee Fix typo.
Reported by Behdad.

* src/base/ftcolor.c (FT_Palette_Data_Get)
[!TT_CONFIG_OPTION_COLOR_LAYERS]: s/apalette/apalette_data/.
2018-06-23 17:25:58 +02:00
Werner Lemberg 9027233f75 s/FT_PALETTE_USABLE_WITH_/FT_PALETTE_FOR_/.
* include/freetype/ftcolor.h, include/freetype/internal/sfnt.h,
src/sfnt/ttcolr.c: Do it.
2018-06-21 00:21:09 +02:00
Werner Lemberg a6b77ba2b3 [sfnt] Fix CPAL heap buffer overflow.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8968

* src/sfnt/ttcpal.c (tt_face_load_cpal): Guard CPAL version 1
offsets.
2018-06-19 20:09:31 +02:00
Werner Lemberg 7915fd51f1 Doh. Don't use CPAL or COLR data if tables are missing.
Reported by Alexei.

* src/sfnt/ttcolr.c (tt_face_get_colr_layer): Return immediately if
`colr' is NULL.

* src/sfnt/ttcpal.c (tt_face_palette_set): Return immediately, if
`cpal' is NULL.
2018-06-19 07:15:21 +02:00
Alexei Podtelezhnikov b1a3c59f8d [base] Introduce `FT_New_Glyph'.
This function facilitates access to full capabilities of FreeType
rendering engine for custom glyphs. This can be quite useful for
consistent rendering of mathematical and chemical formulas, e.g.

  https://bugs.chromium.org/p/chromium/issues/detail?id=757078

* include/freetype/ftglyph.h, src/base/ftglyph.c (FT_New_Glyph): New
function.
2018-06-17 22:33:29 -04:00
Werner Lemberg d573a46f77 Typo. 2018-06-17 23:23:36 +02:00
Armin Hasitzka 0f6be06444 [bdf] Fix underflow of an unsigned value.
bdflib.c:1562 could be reached with `font->glyphs_used == 0'.  That
caused an underflow of the unsigned value which results in undefined
behaviour.

* src/bdf/bdflib.c (src/bdf/bdflib.c): Bail out earlier than before
if the `ENCODING' keyword cannot be found.
2018-06-17 20:27:42 +02:00
Werner Lemberg da84691914 [base] Add tracing for `FT_Bitmap_Blend'.
* include/freetype/internal/fttrace.h (trace_bitmap): New
enumeration.

* src/base/ftbitmap.c (FT_COMPONENT): Define.
(FT_Bitmap_Blend): Add `FT_TRACE5' calls.
2018-06-17 09:30:05 +02:00
Werner Lemberg e361cc6a75 s/trace_bitmap/trace_checksum/.
* include/freetype/internal/fttrace.h: s/bitmap/checksum/.

* src/base/ftobjs.c (FT_COMPONENT): s/trace_bitmap/trace_checksum/.
Adjust code.
2018-06-17 09:13:37 +02:00
Werner Lemberg 9960e7beab [sfnt] Fix color glyph layer loading.
* src/sfnt/ttcolr.c (Colr): Add `table_size' field.
(tt_face_load_colr): Set it.
(tt_face_get_colr_layer): Check pointer limit for layer entries.
2018-06-16 22:16:03 +02:00
Werner Lemberg 1079063701 [sfnt] Fix color palette loading.
Reported as

  https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=8933

* src/sfnt/ttcpal.c (Cpal): Add `table_size' field.
(tt_face_load_cpal): Set it.
(tt_face_palette_set): Check pointer limit for color entries.
2018-06-16 21:45:13 +02:00
Werner Lemberg 9d8e6c2980 * src/base/ftbitmap.c (FT_Bitmap_Blend): Avoid integer overflow. 2018-06-16 10:11:58 +02:00
Werner Lemberg 68bc56f864 Add `FT_Bitmap_Blend' API.
Still missing: Support for negative bitmap pitch and subpixel offset
of source bitmap.

* include/freetype/ftbitmap.h, src/base/ftbitmap.c
(FT_Bitmap_Blend): New function.
2018-06-16 09:39:29 +02:00
Werner Lemberg 9b31c44620 Replace `FT_Get_GlyphLayers' with `FT_Get_Color_Glyph_Layer'.
This avoids any additional allocation of COLR related structures in
a glyph slot.

* include/freetype/freetype.h (FT_Glyph_Layer, FT_Glyph_LayerRec,
FT_Get_GlyphLayers): Removed.

* include/freetype/internal/ftobjs.h (FT_Colr_InternalRec): Removed.
(FT_Slot_InternalRec): Remove `color_layers'.

* include/freetype/internal/sfnt.h (TT_Load_Colr_Layer_Func):
Removed.
(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Remove
`load_colr_layer'.

* src/base/ftobjs.c (ft_glyph_slot_done): Updated.
(FT_Render_Glyph_Internal): Use `FT_Get_Color_Glyph_Layer'.
(FT_Get_GlyphLayers): Removed.

* src/sfnt/sfdriver.c (sfnt_interface): Updated.

* src/sfnt/ttcolr.c (tt_face_load_colr_layers): Removed.
* src/sfnt/ttcolr.h: Updated.

* src/truetype/ttgload.c (TT_Load_Glyph): Updated.
2018-06-14 21:30:43 +02:00
Werner Lemberg f9d05eb326 Provide iterative API to access `COLR' data.
This solution doesn't store any data in an `FT_GlyphSlot' object.

* include/freetype/freetype.h (FT_LayerIterator): New structure.
(FT_Get_Color_Glyph_Layer): New function.

* include/freetype/internal/sfnt.h (TT_Get_Colr_Layer_Func): New
function type.
(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Add it.

* src/base/ftobjs.c (FT_Get_Color_Glyph_Layer): Implement it.

* src/sfnt/ttcolr.c (tt_face_get_colr_layer): New function.
* src/sfnt/ttcolr.h: Updated.

* src/sfnt/sfdriver.c (sfnt_interface): Updated.
2018-06-14 21:17:17 +02:00
Werner Lemberg 33ac83e376 Add glyph index and glyph load flags to glyph slot.
* include/freetype/freetype.h (FT_GlyphSlotRec): Rename unused
`reserved' field to `glyph_index'.

* include/freetype/internal/ftobjs.h (FT_Slot_InternalRec): Add
`load_flags' field.

* src/base/ftobjs.c (FT_Load_Glyph): Set new fields.
2018-06-14 21:00:23 +02:00
Werner Lemberg a44e20879c [sfnt] Move `CPAL' stuff into separate files.
* src/sfnt/sfdriver.c: Include `ttcpal.h'.
* src/sfnt/sfnt.c: Include `ttcpal.c'.

* src/sfnt/ttcolr.c, src/sfnt/ttcolr.h: Move CPAL stuff to ...
* src/sfnt/ttcpal.c, src/sfnt/ttcpal.c: ... these new files.

* src/sfnt/Jamfile (_sources), src/sfnt/rules.mk (SFNT_DRV_SRC):
Updated.

* include/freetype/internal/fttrace.h: Add support for `colr' and
`cpal'.
Sort entries.
2018-06-14 11:32:47 +02:00
Werner Lemberg 54b332aaf9 [sfnt] Separate `CPAL' and `COLR' table handling.
Later on we want to support the `SVG' table also, which needs `CPAL'
(but not `COLR').

* include/freetype/internal/sfnt.h (SFNT_Interface): Add `load_cpal'
and `free_cpal' fields.
(FT_DEFINE_SFNT_INTERFACE): Updated.

* include/freetype/internal/tttypes.h (TT_FaceRec): Replace
`colr_and_cpal' fields with `cpal' and `colr'.

* src/sfnt/sfdriver.c (sfnt_interface): Updated.

* src/sfnt/sfobjs.c (sfnt_load_face, sfnt_done_face): Updated.

* src/sfnt/ttcolr.c (Colr, Cpal): Add `table' field.
(ColrCpal): Removed.
(tt_face_load_colr): Split off CPAL handling into...
(tt_face_load_cpal): ... this new function.
(tt_face_free_colr): Split off CPAL handling into...
(tt_face_free_cpal): ... this new function.
(tt_face_load_colr_layers, tt_face_palette_set): Updated.

* src/sfnt/ttcolr.h: Updated.

* src/truetype/ttgload.c (TT_Load_Glyph): Updated.
2018-06-13 08:46:27 +02:00
Werner Lemberg c07ca2a1b3 [sfnt] Fix `sizeof' thinko.
* src/sfnt/ttcolr.c (tt_face_load_colr, tt_face_palette_set): Don't
use `sizeof' for computing array limit.
2018-06-13 06:11:28 +02:00
Werner Lemberg 22d1be3f2c Finish CPAL/COLR support (4/4).
* src/sfnt/ttcolr.c (tt_face_find_color): Removed.
(tt_face_colr_blend_layer): Use `face->palette' instead of calling
`tt_face_find_color'.
Use and set text foreground color.
2018-06-13 06:11:28 +02:00
Werner Lemberg 45145d348f Finish CPAL/COLR support (3/4).
* src/base/ftcolor.c: Include FT_INTERNAL_SFNT_H.
(FT_Palette_Select, FT_Palette_Set_Foreground_Color): Implement
functions.
2018-06-13 06:11:28 +02:00
Werner Lemberg b85d4e8f04 Finish CPAL/COLR support (2/4).
* src/sfnt/ttcolr.c (tt_face_palette_set): New function.
(tt_face_load_colr): Allocate `face->palette' and call
`tt_face_palette_set'.
Adjust return error code in case of error.

* src/sfnt/ttcolr.h: Updated.

* include/freetype/internal/sfnt.h (TT_Set_Palette_Func): New
function type.
(SFNT_Interface, FT_DEFINE_SFNT_INTERFACE): Add it.

* src/sfnt/sfdriver.c (sfnt_interface), src/sfnt/sfobjs.c
(sfnt_done_face): Updated.
2018-06-13 06:11:28 +02:00
Werner Lemberg 7542f030ec Finish CPAL/COLR support (1/4).
* include/freetype/internal/tttypes.h (TT_FaceRec): New fields
`palette_index', `palette', `have_foreground_color' and
`foreground_color'.
2018-06-13 06:11:27 +02:00
Werner Lemberg 7de877bbc6 [sfnt] Minor.
* src/sfnt/ttcolr.c (tt_face_load_colr_layers):
s/palette_index/palette_entry_index/ for consistency.
Adjust return error code in case of error.
2018-06-13 06:11:27 +02:00
Alexei Podtelezhnikov eaa5a42a12 [raster] Clean up.
* src/raster/ftraster.c (black_TWorker, SCALED, Set_High_Precision):
Clean up after 5-level gray removal (8dc8635874).
(Vertical_Sweep_Span): Be brief.
2018-06-11 21:56:23 -04:00
Werner Lemberg a698dbf868 [sfnt] Fix compiler warnings.
* src/sfnt/ttcolr.c (tt_face_load_colr, tt_face_load_colr_layers,
tt_face_colr_blend_layer): Add `NULL' initializers.
2018-06-10 21:43:51 +02:00
Werner Lemberg d8b8b6e34e s/FT_Palette/FT_Palette_Data/, s/palette/palette_data/.
* include/freetype/ftcolor.h, include/freetype/internal/tttypes.h,
src/base/ftcolor.c, src/sfnt/sfobjs.c, src/sfnt/ttcolr.c: Updated.
2018-06-10 21:37:15 +02:00
Nikolaus Waxweiler bfbde7926f CMakeLists: also accept IOS_PLATFORM=SIMULATOR64
This might be needed to build FreeType for the iOS simulator. See
https://savannah.nongnu.org/bugs/index.php?54048. Patch contributed
by Steve Robinson.

* CMakeLists.txt: Accept IOS_PLATFORM=SIMULATOR64
2018-06-10 13:29:01 +01:00
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