6444875f68
[sdf] Add brief technical overview of both rasterizers.
2020-12-24 07:23:48 +01:00
d27d107f15
[sdf] Add interface functions for the 'bsdf' rasterizer.
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* 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.
2020-12-24 07:23:48 +01:00
a21134751c
[sdf] Add function to copy SDF data into output bitmap.
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* src/sdf/ftbsdf.c (finalize_sdf): New function.
2020-12-24 07:23:48 +01:00
e2ae96b978
[sdf] Add '8-point sequential Euclidean distance mapping' algorithm.
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* src/sdf/ftbsdf.c (compare_neighbor, first_pass, second_pass,
edt8): New functions.
2020-12-24 07:23:48 +01:00
6b9a8044be
[sdf] Add function to copy source bitmap to distance map.
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* src/sdf/ftbsdf.c (bsdf_init_distance_map): New function.
2020-12-24 07:23:48 +01:00
0f644f38e9
[sdf] Add functions to compute pixel edge distances.
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* src/sdf/ftbsdf.c (compute_edge_distance, bsdf_approximate_edge):
New functions.
2020-12-24 07:23:48 +01:00
c576176461
[sdf] Add function to find edge pixels in a grid of alpha values.
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* src/sdf/ftbsdf.c (bsdf_is_edge): New function.
2020-12-24 07:23:48 +01:00
9bbb3611b3
[sdf] Add essential structures for the 'bsdf' rasterizer.
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* src/sdf/ftbsdf.c (ONE): New macro.
(BSDF_TRaster, ED, BSDF_Worker): New structures.
(zero_ed): New constant.
2020-12-24 07:23:48 +01:00
cd6ff28a17
[sdf] Add files for new 'sdf' module.
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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.
2020-12-24 07:23:47 +01:00
Anuj Verma