kc3-lang/freetype/src/sdf
Branch :
Log
| Author | Commit | Date | CI | Message |
|---|---|---|---|---|
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f92c9655 | 2024-08-13 23:29:13 | Fix various typos. | |
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2a7bb459 | 2024-06-20 20:49:56 | Use unsigned point and contour indexing in `FT_Outline`. This doubles the number or allowed points, see https://github.com/harfbuzz/harfbuzz/issues/4752 Although it is hardly practical to use more than 32767 points, other font engines seem to support it. * docs/CHANGES: Announce it. * include/freetype/ftimage.h (FT_Outline): Do it and update limits. * src/*: Update `FT_Outline` users. | |
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d0e3239f | 2024-05-06 13:39:06 | [sdf, bsdf] Use shared FT_SqrtFixed. FT_SqrtFixed (95b0fe2a6dff) is faster and does not overflow. * src/sdf/ftsdfcommin.h (square_root): Replace with a macro. * src/sdf/ftsdfcommin.c (square_root): Remove function. | |
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47574f7e | 2024-01-27 11:11:22 | Update all copyright notices. | |
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86d0ca24 | 2023-06-09 05:13:47 | [sdf] Correct handling of empty glyphs. This is a refinement of commit 7b3ebb9. * src/sdf/ftsdfrend.c (ft_sdf_render): Goto 'Exit' instead of directly returning. (fd_bsdf_render): Ditto, also taking care of setting `FT_GLYPH_OWN_BITMAP` correctly. | |
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c8ae37ba | 2023-05-07 21:06:14 | [sdf] Signature fixes. | |
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cfe54d6a | 2023-04-26 13:15:57 | s/this is,/that is,/ | |
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f5f969a8 | 2023-02-20 22:29:18 | * src/sdf/ftsdf.c (get_min_distance_cubic): Fix C4701, typos. | |
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ac5babe8 | 2023-02-08 19:36:10 | Fix 'fall-through' warning messages. Modern compilers get more insistent on that... * include/freetype/internal/compiler-macros.h (FALL_THROUGH): Define. * src/*: Use it instead of `/* fall through */` comments. | |
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da9eb9c7 | 2023-02-07 07:01:36 | Fix minor clang and clang++ warnings. | |
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515bdfef | 2023-01-04 19:15:38 | [sdf] Use 32-bit integers internally. * src/sdf/ftsdfcommon.h (FT_16D16, FT_26D6): Use 32-bit integers instead of `FT_Fixed` for internal data types. `FT_Fixed` i.e. `signed long` is 64-bit on some architectures. | |
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65f85237 | 2023-01-17 09:18:25 | Update all copyright notices. | |
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26e9028f | 2022-12-13 09:53:26 | [sdf, sfnt] Handle minor compiler warnings. * src/sdf/ftsdf.c (get_min_distance_conic): Initialize `nearest_point`. * src/sfnt/ttsvg.c (find_doc): Initialize `mid_doc`. Fixes #1195. | |
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dea2e635 | 2022-10-24 06:59:45 | Replace '1/64th' (and similar entries) with '1/64' in docs and comments. | |
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2848378b | 2022-06-21 17:08:04 | s/fixed point/fixed-point/ | |
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7b3ebb9c | 2022-04-30 22:43:33 | [sdf] Do not throw errors for invisible glyphs. * src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Return `FT_Err_Ok` if width or height is zero, since some glyphs do not generate visible bitmaps. Fixes #1150. | |
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695d606a | 2022-04-01 08:50:33 | Whitespace. | |
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87989a14 | 2022-03-31 07:43:41 | Fix clang++ warnings. * src/base/ftglyph.c (ft_svg_glyph_prepare), src/base/ftobj.c (ft_glyphslot_init), src/cache/ftccmap.c (ftc_cmap_node_new), src/cache/ftcimage.c (FTC_INode_New), src/lzw/ftlzw.c (FT_Stream_OpenLZW), src/psaux/psobjs.c (ps_parser_load_field), src/pshinter/pshglob.c (psh_globals_new), src/sfnt/ttsvg.c (tt_face_load_svg_doc): Initialize variables used for allocation. * src/sdf/ftsdf.c (split_sdf_conic, split_sdf_cubic): Change type of `max_splits` to FT_UInt. (sdf_generate_bounding_box): Add cast. | |
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360e2507 | 2022-03-04 16:58:50 | [sdf] Fix corner checks and improve performance. * src/sdf/ftsdf.c (sdf_generate_bounding_box): Always check for a corner if two distances (for different curves) are very close. (sdf_conic_to): Check whether the conic curve can be treated as a line (which happens if the control point coincides with any end point). | |
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2600ef63 | 2022-03-04 16:53:27 | [sdf] Implement deviation-based splitting for Bezier curves. * src/sdf/ftsdf.c (split_sdf_cubic, split_sdf_shape): Add checks to figure out the deviation of Bezier curves and stop splitting if the curve is flat enough. * src/sdf/ftsdfcommon.h (ONE_PIXEL): New macro. | |
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ab1c98ac | 2022-01-27 15:23:47 | Fix sdf computation while `USE_SQUARED_DISTANCES`. Function `map_fixed_to_sdf` expects spread to be absolute and not squared. * src/sdf/ftbsdf.c (finalize_sdf): Pass absolute spread while `map_fixed_to_sdf`. * src/sdf/ftsdf.c (sdf_generate_bounding_box): Ditto. | |
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0ac53590 | 2022-01-26 14:02:27 | * src/sdf/ftsdf.c (sdf_*_new): Use standard macro. | |
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ba5d661f | 2022-01-14 21:54:17 | * src/sdf/ftbsdf.c (ED): s/near/prox/. This works around the Watcom C definition of `near` as restricted __near. | |
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d0cfb4e1 | 2022-01-11 10:54:10 | Update all copyright notices. | |
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4f357118 | 2021-12-17 11:22:09 | Clang-Tidy warning fixes. * src/base/ftobjs.c (FT_Get_Paint): Operator has equivalent nested operands. * src/bdf/bdflib.c (_bdf_add_property): Value stored to `fp` is never read. * src/sdf/ftbsdf.c (bsdf_init_distance_map): Value stored to `pixel` is never read. * src/sdf/ftsdf.c (split_sdf_shape): Value stored to `error` is never read. | |
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238245cd | 2021-11-16 22:07:28 | Fix clang++ warnings. * src/*: Initialize some variables to NULL. | |
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7f8f0c1c | 2021-09-02 23:30:31 | [smooth, raster, sdf] Clean up initialization calls. * src/raster/ftraster.c (ft_black_init): Removed. (ft_black_new): Clean up. * src/sdf/ftbsdf.c (bsdf_raster_new): Ditto. * src/sdf/ftsdf.c (sdf_raster_new): Ditto. * src/smooth/ftgrays.c (gray_raster_new): Ditto. | |
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f44c2d58 | 2021-08-18 08:52:21 | * src/sdf/ftsdf.c (get_control_box): Fix compiler warning. | |
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be6ab319 | 2021-08-02 09:44:16 | [sdf] Fix out-of-range-access. * src/sdf/ftbsdf.c (first_pass, second_pass): Fix range during forward pass. Otherwise the index goes out of range for the last column. Fixes issue #1077. | |
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ebcc96e5 | 2021-08-02 08:40:43 | Fix invalid memory access in `bsdf` rasterizer. Do not generate SDF from bitmap if the `FT_GLYPH_OWN_BITMAP` flag is not set. In some cases the bitmap buffer is freed but still points to a valid address; to handle those cases check the flag before accessing the memory. * src/sdf/ftsdfrend.c (ft_bsdf_render): Handle the above case. Also, return an error message if the bitmap's rows/pitch is invalid, otherwise `slot->buffer` might be assigned to some invalid memory location. (ft_sdf_render): Same as above. Plus, move the outline back to original state after rasterization and not if any error occurs. Signed-off-by: Anuj Verma <anujv@iitbhilai.ac.in> | |
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e592982a | 2021-07-13 10:00:22 | [sdf] Improve documentation. | |
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90ecac41 | 2021-06-30 10:23:42 | Update `CHANGES` file; other minor doc fixes. | |
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61bac759 | 2021-06-18 17:38:00 | * src/sdf/ftsdfrend.c (ft_(b)sdf_render): Do not FT_ERROR routinely. | |
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7833e308 | 2021-06-09 10:40:30 | [sdf] Fix SDF positioning. * src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Add padding to `bitmap_top' and `bitmap_left'. * sdf/sdf/ftsdf.c (sdf_generate_with_overlaps): Fix VC++ warning. | |
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41fa19fc | 2021-06-08 10:32:20 | * src/sdf/ftsdfcommon.c: Fix inclusion of header files. | |
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35b21c71 | 2021-06-08 09:06:39 | [sdf] Make `make multi` work. * src/sdf/ftsdf.c: Include `ftbitmap.h`. * src/sdf/ftsdfcommon.h: Move function bodies to `ftsdfcommon.c`. Include `ftobjs.h` to get definitions of `FT_LOCAL` and friends. * src/sdf/ftsdfcommon.c: New file. * src/sdf/rules.mk, src/sdf/sdf.c: Updated. | |
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36ee7171 | 2021-06-08 09:00:39 | [sdf] Formatting and improved comments. | |
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2b1d5562 | 2021-06-08 08:29:34 | [sdf] Use 8 bits for final SDF output instead of 16bits. Since 8-bits is enough to represent SDF data we no longer require 16-bits for this purpose. Also, we now normalize the output data to use the entire 8-bit range efficiently. For example: if we use 3.5 format with a spread of 1 we basically only use the starting 5-bits. By normalizing we can use the entire 8-bit range. * include/freetype/freetype.h (FT_Render_Mode): Updated description for `FT_RENDER_MODE_SDF` regarding this change. * include/freetype/ftimage.h (FT_Pixel_Mode): Removed `FT_PIXEL_MODE_GRAY16` since no longer required. * include/freetype/fttypes.h (FT_F6Dot10): Removed since no longer required. * src/sdf/ftsdfrend.c (ft_sdf_render, ft_bsdf_render): Allocate 8-bit bitmap instead of 16-bit buffer. * src/sdf/ftsdfcommon.h (map_fixed_to_sdf): Added function to convert 16.16 distance value to our desired format. * src/sdf/ftsdf.c (sdf_generate_with_overlaps, sdf_generate_bounding_box): Use the new `map_fixed_to_sdf` function and also use 8-bit output buffer. * src/sdf/ftbsdf.c (finalize_sdf): Output to a 8-bit buffer instead of 16-bit buffer. | |
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6e253b26 | 2021-05-29 11:05:41 | Typos in previous commit. | |
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a50c39aa | 2021-05-29 09:50:29 | Fix compilation errors and (some) warnings for clang++. * src/autofit/afmodule.c (AF_GlyphHintsRec): Make it static. * src/cache/ftcache.c (FTC_Cache_NewNode), src/cache/ftcsbits.c (ftc_snode_compare): Remove semicolon. * src/cff/cffparse.c (cff_parser_run): Add `break` statement. * src/cid/cidload.c (cid_hex_to_binary): Add cast. * src/sdf/ftbsdf.c (CHECK_NEIGHBOR): Use `do {} while(0)` loop. (bsdf_init_distance_map, finalize_sdf, bsdf_raster_render): Add casts. * src/sdf/ftsdf.c (sdf_generate_bounding_box, sdf_generate_with_overlaps): Ditto. * src/sdf/ftsdfcommon.h (square_root): Ditto. * src/sdf/ftsdfrend.c (sdf_property_get, ft_sdf_render, ft_bsdf_render): Ditto. * src/sfnt/ttcolr.c (find_base_glyph_record, find_base_glyph_v1_record): Fix variable signedness. (read_color_line): Add cast. (read_paint): Add casts. Fix signedness issue. (tt_face_get_colorline_stops) Fix signedness issues. * src/sfnt/ttpost.c (load_format_20): Add casts. * src/truetype/ttsubpix.c (TWEAK_RULES, TWEAK_RULES_EXCEPTIONS): Remove final semicolons. | |
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e6e5b67d | 2021-04-23 21:33:03 | * src/sdf/ftsdf.c (sdf_{edge,contour,shape}_new): Use FT_QALLOC. | |
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2149b51f | 2021-03-13 19:08:09 | Handle various VC++ compiler warnings. Fixes #1039. * src/base/ftstroke.c (ft_stroker_inside, ft_stroker_outside): Initialize `sigma`. * src/sdf/ftsdf.c (sdf_generate_with_overlaps): Exit immediately if function arguments are invalid. * src/sdf/ftsdfrend.c (sdf_property_set) <"overlaps">: Fix cast. * src/sfnt/sfwoff2.c (woff2_decompress) [!FT_CONFIG_OPTION_USE_BROTLI]: Use `FT_UNUSED`. * src/truetype/ttgxvar.c (TT_Get_MM_Var): Initialize `fvar_head`. | |
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b6e8a712 | 2021-01-17 07:18:48 | Update all copyright notices. | |
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c6ff2556 | 2020-12-26 10:50:21 | [sdf] Use 'counter-clockwise', not 'anti-clockwise'. We prefer US nomenclature. * src/sdf/ftsdf.c (SDF_Contour_Orientation): s/SDF_ORIENTATION-ACW/SDF_ORIENTATION_CCW/. Update all users. | |
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10a5dfec | 2020-12-26 08:34:38 | [sdf] Remove custom memory tracker. The internal FreeType memory tracker is sufficient. * src/sdf/ftsdf.c (FT_DEBUG_INNER, FT_ASSIGNP_INNER, SDF_MemoryUser, sdf_alloc, sdf_free, SDF_ALLOC, SDF_FREE, SDF_MEMORY_TRACKER_DECLARE, SDF_MEMORY_TRACKER_SETUP, SDF_MEMORY_TRACKER_DONE): Removed. s/SDF_ALLOC/FT_ALLOC/. s/SDF_FREE/FT_FREE/. Other updates. | |
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286e9e0d | 2020-12-24 08:41:12 | [sdf] Two more copyright notices. | |
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3c983eb8 | 2020-12-24 08:36:09 | [sdf] Fix `make multi`. * src/sdf/ftsdf.c: Include `ftoutln.h`. | |
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aa1b5362 | 2020-12-24 08:32:04 | [sdf] Fix tracing. * include/freetype/internal.fttrace.h: Add 'bsdf' component. * src/sdf/ftbsdf.c, src/sdf/ftsdf.c (FT_COMPONENT): Define. | |
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04a64432 | 2020-12-24 08:29:05 | [sdf] Add copyright notices. | |
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b298a644 | 2020-08-21 04:59:08 | [sdf] Add debugging function. * src/sdf/ftsdf.c (sdf_shape_dump): New function. | |
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6444875f | 2020-08-21 03:59:23 | [sdf] Add brief technical overview of both rasterizers. | |
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6cd6df55 | 2020-08-20 21:57:43 | [sdf] Add 'bsdf' renderer to 'sdf' module. * src/sdf/ftsdfrend.c (ft_bsdf_render): New function. (ft_bitmap_sdf_renderer_class): New structure. | |
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d27d107f | 2020-08-20 21:25:46 | [sdf] Add interface functions for the 'bsdf' rasterizer. * src/sdf/ftsdf.c (bsdf_raster_new, bsdf_raster_reset, bsdf_raster_set_mode, bsdf_raster_render, bsdf_raster_done): New functions. (ft_bitmap_sdf_raster): New variable. * src/sdf/ftsdf.h: Updated. | |
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a2113475 | 2020-08-20 21:21:33 | [sdf] Add function to copy SDF data into output bitmap. * src/sdf/ftbsdf.c (finalize_sdf): New function. | |
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e2ae96b9 | 2020-08-20 21:19:32 | [sdf] Add '8-point sequential Euclidean distance mapping' algorithm. * src/sdf/ftbsdf.c (compare_neighbor, first_pass, second_pass, edt8): New functions. | |
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6b9a8044 | 2020-08-20 21:09:23 | [sdf] Add function to copy source bitmap to distance map. * src/sdf/ftbsdf.c (bsdf_init_distance_map): New function. | |
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0f644f38 | 2020-08-20 09:25:15 | [sdf] Add functions to compute pixel edge distances. * src/sdf/ftbsdf.c (compute_edge_distance, bsdf_approximate_edge): New functions. | |
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c5761764 | 2020-08-20 09:20:26 | [sdf] Add function to find edge pixels in a grid of alpha values. * src/sdf/ftbsdf.c (bsdf_is_edge): New function. | |
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9bbb3611 | 2020-08-20 09:17:38 | [sdf] Add essential structures for the 'bsdf' rasterizer. * src/sdf/ftbsdf.c (ONE): New macro. (BSDF_TRaster, ED, BSDF_Worker): New structures. (zero_ed): New constant. | |
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05f6088d | 2020-08-20 07:54:13 | [sdf] Added basic overlapping contour support. * src/sdf/ftsdf.c (sdf_generate_with_overlaps): New function. (sdf_raster_render): Enable it. | |
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879ca87f | 2020-08-19 16:57:38 | [sdf] Add build infrastructure. * src/sdf/module.mk, src/sfd/rules.mk: New files. * src/sdf/ftsdf.h (ft_sdf_raster): New forward declaration. * include/freetype/ftmoderr.h (FT_MODERRDEF): Add error definition for the 'sdf' module. * include/freetype/internal/fttrace.h (FT_TRACE_DEF): Add trace definition for the `sdf' module. * modules.cfg (RASTER_MODULES): Add the `sdf' module to the list of rasterizers. | |
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665ac967 | 2020-08-19 16:29:51 | [sdf] Add interface functions for the 'sdf' rasterizer. * src/sdf/ftsdf.c (sdf_raster_new, sdf_raster_reset, sdf_raster_set_mode, sdf_raster_render, sdf_raster_done): New functions. (ft_sdf_raster): New structure. | |
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1010f2c3 | 2020-08-19 16:25:08 | [sdf] Add subdivision and bounding box optimization. * src/sdf/ftsdf.c (sdf_generate_bounding_box): New function, which is an optimized version of `sdf_generate`. (sdf_generate_subdivision): New function. | |
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986d3108 | 2020-08-19 12:56:58 | [sdf] Add function to generate SDF. * src/sdf/ftsdf.c (sdf_generate): New function, currently disabled. This is a proof-of-concept implementation: It doesn't use any optimization, it simply checks all grid points against all contours. | |
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0d52f4ae | 2020-08-19 12:22:34 | [sdf] Add functions to get shortest distance from any edge/contour. * src/sdf/ftsdf.c (sdf_edge_get_min_distance): New function. (sdf_contour_get_min_distance): New function, currently disabled. | |
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81e32986 | 2020-08-18 17:49:56 | [sdf] Add shortest distance finding functions. * src/sdf/ftsdf.c (get_min_distance_line, get_min_distance_conic, get_min_distance_cubic): New functions. Note that `get_min_distance_conic` comes with two implementations (using an analytical and an iterative method, to be controlled with the `USE_NEWTON_FOR_CONIC` macro). | |
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c918b54f | 2020-08-18 10:28:16 | [sdf] Add function to resolve corner distances. * src/sdf/ftsdf.c (resolve_corner): New function. | |
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a255125f | 2020-08-18 10:17:46 | [sdf] Add essential math functions. * src/sdf/ftsdf.c (cube_root, arc_cos) [!USE_NEWTON_FOR_CONIC]: New auxiliary functions. * src/sdf/ftsdf.c (solve_quadratic_equation, solve_cubic_equation) [!USE_NEWTON_FOR_CONIC]: New functions. | |
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cd413845 | 2020-08-18 10:14:20 | [sdf] Add utility functions for contours. * src/sdf/ftsdf.c (get_control_box, get_contour_orientation): New functions. (split_conic, split_cubic, split_sdf_conic, split_sdf_cubic, split_sdf_shape): New functions. | |
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2de1b563 | 2020-08-17 16:36:30 | [sdf] Add functions to decompose `FT_Outline`. * src/sdf/ftsdf.c (sdf_move_to, sdf_line_to, sdf_conic_to, sdf_cubic_to): New auxiliary decomposition functions. (sdf_compose_funcs): New structure. (sdf_outline_decompose): New function. | |
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cf0464d8 | 2020-08-17 16:24:39 | [sdf] Structs, enums, macros, and functions for 'sdf' rasterizer. * src/sdf/ftsdf.c (FT_DEBUG_INNER, FT_ASSIGNP_INNER) [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New macros. (SDF_MemoryUser) [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New struct for memory usage tracing. (sdf_alloc, sdf_free) [FT_DEBUG_LEVEL_TRACE && FT_DEBUG_MEMORY]: New functions for memory usage tracing. (SDF_ALLOC, SDF_FREE): New macros for memory management. (SDF_MEMORY_TRACKER_DECLARE, SDF_MEMORY_TRACKER_SETUP, SDF_MEMORY_TRACKER_DONE): New macros to set up memory usage tracing. (USE_NEWTON_FOR_CONIC, MAX_NEWTON_DIVISIONS, MAX_NEWTON_STEPS, CORNER_CHECK_EPSILON, CG_DIMEN): New configuration macros for controlling the process of finding the shortest distance. (MUL_26D6, VEC_26D6_DOT): New auxiliary macros. (SDF_TRaster, SDF_Edge, SDF_Contour, SDF_Shape, SDF_Signed_Distance, SDF_Params): New structs for setting up SDF data. (SDF_Edge_Type, SDF_Contour_Orientation): New enums for SDF data. (zero_vector, null_edge, null_contour, null_shape, max_sdf): Useful constants. (sdf_edge_new, sdf_edge_done, sdf_contour_new, sdf_contour_done, sdf_shape_new, sdf_shape_done): New constructors and destructors. | |
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c6ec87ec | 2020-08-17 16:11:56 | [sdf] Add raster parameters structure. * src/sdf/ftsdf.h (SDF_Raster_Params): New structure. * src/sdf/sdf.c: Include source files in order to make a single object of the module. | |
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56d27d32 | 2020-08-17 11:47:26 | [sdf] Add 'sdf' renderer. * src/sdf/ftsdf.c: Add 'sdf' renderer along with its interface functions. Also add functions to set and get properties. | |
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21627032 | 2020-08-17 11:40:57 | [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. | |
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cd6ff28a | 2020-08-16 17:09:22 | [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. |