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snapshot: Assert that we do not generate a snapshot clone

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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-08-14 09:46:01 +01:00
parent 161836ab49
commit 47874aacea
2 changed files with 4 additions and 5 deletions
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6
src/cairo-analysis-surface.c
View file

@ -172,10 +172,8 @@ _analyze_recording_surface_pattern (cairo_analysis_surface_t *surface,
if (_cairo_surface_is_snapshot (source))
source = _cairo_surface_snapshot_get_target (source);
if (source->backend->type == CAIRO_SURFACE_TYPE_SUBSURFACE) {
cairo_surface_subsurface_t *sub = (cairo_surface_subsurface_t *) source;
source = sub->target;
}
if (_cairo_surface_is_subsurface (source))
source = _cairo_surface_subsurface_get_target (source);
status = _cairo_recording_surface_replay_and_create_regions (source, &tmp->base);
detach_proxy (proxy);

3
src/cairo-surface-snapshot.c
View file

@ -157,6 +157,7 @@ _cairo_surface_snapshot_copy_on_write (cairo_surface_t *surface)
done:
status = _cairo_surface_set_error (surface, clone->status);
assert (! _cairo_surface_is_snapshot (clone));
snapshot->target = snapshot->clone = clone;
snapshot->base.type = clone->type;
}
@ -195,7 +196,7 @@ _cairo_surface_snapshot (cairo_surface_t *surface)
if (surface->snapshot_of != NULL)
return cairo_surface_reference (surface);
if (surface->backend == &_cairo_surface_snapshot_backend)
if (_cairo_surface_is_snapshot (surface))
return cairo_surface_reference (surface);
snapshot = (cairo_surface_snapshot_t *)