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6334 Commits

Author SHA1 Message Date
Parth Wazurkar 0532670c02 [gf] Complete stream support and some minor changes for testing. 2018-07-03 01:57:10 +05:30
Parth Wazurkar 2bea8dbd49 Minor changes for testing. 2018-07-03 01:57:10 +05:30
Parth Wazurkar e69e7e492a [tfm] Add preliminary functions and structures. 
* Added tfm specific functions and structures for the driver
(To be modified).
 2018-07-03 01:57:10 +05:30
Parth Wazurkar e7c95039f5 [gf] COnverted file functions to FT stream functions. 
* src/gf/gflib.c : Converted all the file functions like getc,
fseek,etc. to FT specific stream functions.
 2018-07-03 01:57:09 +05:30
Parth Wazurkar 1338d517c4 [tfm] Initialised TFM driver files. 
* src/tfm : Added all the driver source files and makefiles.
 2018-07-03 01:57:09 +05:30
Parth Wazurkar 5147064e1b [gf] Temporary changes for compiling gf driver. 2018-07-03 01:57:09 +05:30
Parth Wazurkar 3ff144c5d9 [gf] Convert block comments to `light' style in gf files. 2018-07-03 01:57:09 +05:30
Parth Wazurkar 781a67cb82 [gf] Changes. 2018-07-03 01:57:09 +05:30
Parth Wazurkar 59f6af025d [gf] Changed to FT data types in structures. 
* src/gf/gfdrivr.h: Changed data types in GF_FaceRec, Gf_GlyphRec and GF_BitmapRec to FT data types.
 2018-07-03 01:57:09 +05:30
Parth Wazurkar 56b81c93f0 [gf] * src/gf/gfdrivr.c: Added GF_Face_Init, GF_Face_Done and GF_Glyph_Load functions. 2018-07-03 01:57:09 +05:30
Parth Wazurkar f920b5f345 [gf] Removed VFlib specific code and refactored to FT. 2018-07-03 01:57:09 +05:30
Parth Wazurkar 265cc448fd [gf] Added GF_Size_Request and GF_Size_Select functions. 2018-07-03 01:57:09 +05:30
Parth Wazurkar 577efd8f17 [gf] Minor changes to Makefiles to accomodate GF Driver. 
* modules.cfg: Added gf font driver module.
* src/gf/module.mk: Minor changes.
 2018-07-03 01:57:09 +05:30
Parth Wazurkar 48e21b7681 [gf] * src/gf/gf.c: Added source files for single build 2018-07-03 01:57:09 +05:30
Parth Wazurkar 846f20ac9d [gf] Removed indentation errors. 2018-07-03 01:57:09 +05:30
Parth Wazurkar ba5757b415 [gf] Added Makefiles. 
-Initialised module.mk and rules.mk.
 2018-07-03 01:57:09 +05:30
Parth Wazurkar 126c1e58e9 [gf] Initialised internal utility functions specific to GF format. 
* src/gf/gf.h Added some required definitions.
* src/gf/gflib.c Added gf_font_load, gf_read_glyph, gf_font_done functions.
 2018-07-03 01:57:09 +05:30
Parth Wazurkar 9de5de08ab [gf] *src/gf/gfdrivr.h Defined GF_FaceRec and other format specific structures. 
- Defined GF_FaceRec.
- Defined GF_BitmapRec and GF_Glyph structures to properly distinguish format specific values.
 2018-07-03 01:57:09 +05:30
Parth Wazurkar d40152c275 [gf] *src/gf/gfdrivr.c defined gf_cmap_class functions 
- Defined structure GF_CMapRec for gf font format.
- Implemented gf_cmap_init, gf_cmap_done, gf_cmap_char_index, gf_cmap_char_next.
 2018-07-03 01:57:09 +05:30
Parth Wazurkar af1a80cdd3 [gf] Added gf.c 2018-07-03 01:57:09 +05:30
Parth Wazurkar 43b840d6c2 [gf] Initialised gf driver files 
gf driver files are initialised. Macros required for gf font files are determined in gf.h file.
 2018-07-03 01:57:09 +05:30
Parth Wazurkar dfe1bdc246 *src added gf driver repository 
This repository contains the driver for gf font format.
 2018-07-03 01:57:09 +05:30
Werner Lemberg 396051daee s/xxx specific foo/xxx-specific foo/. 2018-07-02 15:52:36 +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
Werner Lemberg a56e4bf7a2 Oops! 2018-06-18 23:18:07 +02:00
Nikhil Ramakrishnan 779c8c4050 Some more minor doc fixes. 2018-06-18 15:17:13 +05:30
Werner Lemberg 95f7341d81 More minor doc fixes. 2018-06-18 11:10:14 +02:00
Werner Lemberg ce8517b474 Minor documentation fixes. 2018-06-18 10:22:42 +02:00
Werner Lemberg 877d80944b Introduce `@example:' subsections. 2018-06-18 10:08:17 +02:00
Werner Lemberg fc40469a6f Add example for `FT_Get_Color_Glyph_Layer'. 2018-06-18 09:23:18 +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
Nikhil Ramakrishnan e13599a036 Change documentation markup tags to lowercase. 
Implemented as per discussion in

  http://lists.nongnu.org/archive/html/freetype-devel/2018-06/msg00073.html

No change in functionality, of course.
 2018-06-18 03:40:29 +05:30
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 19d8687f0b Fix documentation indentation; s/@const/@enum/; harmonize doc keywords. 2018-06-17 11:22:37 +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