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[cairo-pattern] Don't cache fallback surfaces

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_cairo_surface_create_similar_solid() may return an image surface,
should the backend not support the required content or should it
encounter an error whilst creating the surface. In those circumstances
we choose not to cache the fallback surface.
This commit is contained in:
Chris Wilson 2007-05-02 12:54:49 +01:00
parent a8c8e17d84
commit 056d149212
1 changed files with 7 additions and 1 deletions
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8
src/cairo-pattern.c
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@ -1318,7 +1318,12 @@ _cairo_pattern_acquire_surface_for_solid (cairo_solid_pattern_t *pattern,
goto UNLOCK;
}
assert (_cairo_surface_is_similar (surface, dst, pattern->content));
if (! _cairo_surface_is_similar (surface, dst, pattern->content)) {
/* in the rare event of a substitute surface being returned (e.g.
* malloc failure) don't cache the fallback surface */
*out = surface;
goto NOCACHE;
}
/* Cache new */
if (solid_surface_cache.size < MAX_SURFACE_CACHE_SIZE) {
@ -1336,6 +1341,7 @@ _cairo_pattern_acquire_surface_for_solid (cairo_solid_pattern_t *pattern,
DONE:
*out = cairo_surface_reference (solid_surface_cache.cache[i].surface);
NOCACHE:
attribs->x_offset = attribs->y_offset = 0;
cairo_matrix_init_identity (&attribs->matrix);
attribs->extend = CAIRO_EXTEND_REPEAT;