diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2009-05-26 21:07:07 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2009-06-02 15:13:47 +0100 |
| commit | cffb398f5a484000be458d04ef8f8bce3f6c7e3d (patch) | |
| tree | 3b620279d063b567389a24b8533b6c1801dec673 /test/trap-clip.c | |
| parent | 7ed050fd435f17d25c7b757b02cfe200f8779fc2 (diff) | |
Add a generic cow-snapshotting framework
Provide a mechanism for backends to attach and remove snapshots. This can
be used by backends to provide a cache for _cairo_surface_clone_similar(),
or by the meta-surfaces to only emit a single pattern for each unique
snapshot.
In order to prevent stale data being returned upon a snapshot operation,
if the surface is modified (via the 5 high level operations, and on
notification of external modification) we break the association with any
current snapshot of the surface and thus preserve the current data for
their use.
Diffstat (limited to 'test/trap-clip.c')
| -rw-r--r-- | test/trap-clip.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/test/trap-clip.c b/test/trap-clip.c index 3a8d5c01..0999d971 100644 --- a/test/trap-clip.c +++ b/test/trap-clip.c @@ -32,6 +32,7 @@ #define PAD 2 static const char *png_filename = "romedalen.png"; +static cairo_surface_t *image; static void set_solid_pattern (const cairo_test_context_t *ctx, cairo_t *cr, int x, int y) @@ -63,7 +64,13 @@ set_image_pattern (const cairo_test_context_t *ctx, cairo_t *cr, int x, int y) { cairo_pattern_t *pattern; - pattern = cairo_test_create_pattern_from_png (ctx, png_filename); + if (image == NULL || cairo_surface_status (image)) { + cairo_surface_destroy (image); + image = cairo_test_create_surface_from_png (ctx, png_filename); + } + + pattern = cairo_pattern_create_for_surface (image); + cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT); cairo_set_source (cr, pattern); cairo_pattern_destroy (pattern); } @@ -193,6 +200,9 @@ draw (cairo_t *cr, int width, int height) if (cairo_status (cr) != CAIRO_STATUS_SUCCESS) cairo_test_log (ctx, "%d %d .HERE!\n", (int)i, (int)j); + cairo_surface_destroy (image); + image = NULL; + return CAIRO_TEST_SUCCESS; } |