Commit Graph

6281 Commits

Author SHA1 Message Date
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 04338a5e52 Doc fixes and improvements. 2018-06-12 21:59:15 -04:00
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 b18f5e7c62 Minor doc fixes. 2018-06-11 09:02:25 +02:00
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 44580515d8 Minor. 2018-06-07 06:49:44 +02:00
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 7c7004d60c New `ftcolor.h' draft. 2018-06-06 17:37:51 +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
Nikhil Ramakrishnan 78d85b9c84 Restore missing comment lines and other minor fixes 2018-06-04 20:33:56 +05:30
Sender Ghost cc62677224 Restore accidentally removed, commented-out configuration options. 2018-06-04 10:49:23 +02:00
Werner Lemberg f999375a9a [GSoC] include/*.*, devel/*.*: Convert block comments to `light' style.
This second and final monster commit was created by applying Nikhil's
scripts `docconverter.py' and `markify.py' to all C header and source files,
followed up by minor manual clean-up.

No change in functionality, of course.

I used commit f7419907bc6044b9b7057f9789866426c804ba82 from
https://github.com/nikramakrishnan/freetype-docs.git.
2018-06-03 22:00:42 +02:00
Werner Lemberg dc170dea33 Typos. 2018-06-03 21:23:52 +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 64bf5d48eb Minor formatting. 2018-06-03 09:20:09 +02:00
Werner Lemberg 02842872de * src/tools/glnames.py (main): Emit header in `light' comment style. 2018-06-03 09:17:55 +02:00
Werner Lemberg 9ac9060df0 [GSoC] src/*.*: Convert block comments to `light' style.
This monster commit was created by applying Nikhil's scripts
`docconverter.py' and `markify.py' to all C header and source files,
followed up by minor manual clean-up.

No change in functionality, of course.

I used commit f7419907bc6044b9b7057f9789866426c804ba82 from
https://github.com/nikramakrishnan/freetype-docs.git.
2018-06-03 09:08:41 +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
Alexei Podtelezhnikov 250b0c624a Shorten LCD filtering docs. 2018-05-30 23:29:41 -04:00
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