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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2011-08-30 14:24:12 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2011-08-30 15:17:38 +0100 |
| commit | 70cd3b473d09e9ad3d803014a904a22639db1a24 (patch) | |
| tree | 45be818179ce0ce6e95cf2ddeb6e300922889407 /src/cairo-xlib-surface.c | |
| parent | 6b1daace578673c72a22a2fac72df9af2312cb10 (diff) | |
| download | cairo-70cd3b473d09e9ad3d803014a904a22639db1a24.tar.gz | |
api: Extend cairo_antialias_t to include performace/quality hints
The existing API only described the method to be used for performing
rasterisation and unlike other API provided no opportunity for the user
to give a hint as to how to trade off performance against speed. So in
order to no be overly prescriptive, we extend the NONE/GRAY/SUBPIXEL
methods with FAST/GOOD/BEST hints and leave the backend to decide how
best to achieve those goals.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'src/cairo-xlib-surface.c')
| -rw-r--r-- | src/cairo-xlib-surface.c | 21 |
1 files changed, 6 insertions, 15 deletions
diff --git a/src/cairo-xlib-surface.c b/src/cairo-xlib-surface.c index 96d599328..e82de6505 100644 --- a/src/cairo-xlib-surface.c +++ b/src/cairo-xlib-surface.c @@ -1097,8 +1097,11 @@ _cairo_xlib_surface_set_precision (cairo_xlib_display_t *display, case CAIRO_ANTIALIAS_DEFAULT: case CAIRO_ANTIALIAS_GRAY: case CAIRO_ANTIALIAS_NONE: + case CAIRO_ANTIALIAS_FAST: + case CAIRO_ANTIALIAS_GOOD: precision = PolyModeImprecise; break; + case CAIRO_ANTIALIAS_BEST: case CAIRO_ANTIALIAS_SUBPIXEL: precision = PolyModePrecise; break; @@ -2966,21 +2969,9 @@ _cairo_xlib_surface_composite_trapezoids (cairo_operator_t op, goto BAIL; } - switch (antialias) { - case CAIRO_ANTIALIAS_NONE: - pict_format = - _cairo_xlib_display_get_xrender_format (display, - CAIRO_FORMAT_A1); - break; - case CAIRO_ANTIALIAS_GRAY: - case CAIRO_ANTIALIAS_SUBPIXEL: - case CAIRO_ANTIALIAS_DEFAULT: - default: - pict_format = - _cairo_xlib_display_get_xrender_format (display, - CAIRO_FORMAT_A8); - break; - } + pict_format = + _cairo_xlib_display_get_xrender_format (display, + antialias == CAIRO_ANTIALIAS_NONE ? CAIRO_FORMAT_A1 : CAIRO_FORMAT_A8); status = _cairo_xlib_surface_set_clip_region (dst, clip_region); if (unlikely (status)) |