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| author | Carl Worth <cworth@cworth.org> | 2006-12-19 21:34:16 -0800 |
|---|---|---|
| committer | Carl Worth <cworth@cworth.org> | 2006-12-22 17:59:20 -0800 |
| commit | ba531642f79d492ecbad8f086f1e44b56e157e36 (patch) | |
| tree | ff4ff528262e06116606b59e7dc213ee2f3b6eb9 /src/cairo-path-fixed-private.h | |
| parent | b1189118532a1fe93e126843af739809d38a62bd (diff) | |
| download | cairo-ba531642f79d492ecbad8f086f1e44b56e157e36.tar.gz | |
Add optimization for rectilinear stroke
This custom stroking code allows backends to use optimized region-based
drawing operations for rectilinear strokes. This results in a 5-25x
performance improvement when drawing rectilinear shapes:
image-rgb box-outline-stroke-100 0.18 -> 0.01: 25.58x speedup
████████████████████████▋
image-rgba box-outline-stroke-100 0.18 -> 0.01: 25.57x speedup
████████████████████████▋
xlib-rgb box-outline-stroke-100 0.49 -> 0.06: 8.67x speedup
███████▋
xlib-rgba box-outline-stroke-100 0.22 -> 0.04: 5.39x speedup
████▍
In other words, using cairo_stroke instead of cairo_fill to draw the
same shape was 5-15x slower before, but is 1.2-2x faster now.
Diffstat (limited to 'src/cairo-path-fixed-private.h')
| -rw-r--r-- | src/cairo-path-fixed-private.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/cairo-path-fixed-private.h b/src/cairo-path-fixed-private.h index 8e0d530c3..12ca6186c 100644 --- a/src/cairo-path-fixed-private.h +++ b/src/cairo-path-fixed-private.h @@ -68,7 +68,8 @@ struct _cairo_path_fixed { cairo_point_t last_move_point; cairo_point_t current_point; - unsigned int has_current_point : 1; + unsigned int has_current_point : 1; + unsigned int has_curve_to : 1; }; #endif /* CAIRO_PATH_FIXED_PRIVATE_H */ |