test-fallback-surface.c [plain text]
#include "cairoint.h"
#include "test-fallback-surface.h"
#include "cairo-error-private.h"
typedef struct _test_fallback_surface {
cairo_surface_t base;
cairo_surface_t *backing;
} test_fallback_surface_t;
static const cairo_surface_backend_t test_fallback_surface_backend;
slim_hidden_proto (_cairo_test_fallback_surface_create);
cairo_surface_t *
_cairo_test_fallback_surface_create (cairo_content_t content,
int width,
int height)
{
test_fallback_surface_t *surface;
cairo_surface_t *backing;
backing = _cairo_image_surface_create_with_content (content, width, height);
if (cairo_surface_status (backing))
return backing;
surface = malloc (sizeof (test_fallback_surface_t));
if (unlikely (surface == NULL)) {
cairo_surface_destroy (backing);
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
}
_cairo_surface_init (&surface->base,
&test_fallback_surface_backend,
NULL,
content);
surface->backing = backing;
return &surface->base;
}
slim_hidden_def (_cairo_test_fallback_surface_create);
static cairo_surface_t *
_test_fallback_surface_create_similar (void *abstract_surface,
cairo_content_t content,
int width,
int height)
{
assert (CAIRO_CONTENT_VALID (content));
return _cairo_test_fallback_surface_create (content,
width, height);
}
static cairo_status_t
_test_fallback_surface_finish (void *abstract_surface)
{
test_fallback_surface_t *surface = abstract_surface;
cairo_surface_destroy (surface->backing);
return CAIRO_STATUS_SUCCESS;
}
static cairo_status_t
_test_fallback_surface_acquire_source_image (void *abstract_surface,
cairo_image_surface_t **image_out,
void **image_extra)
{
test_fallback_surface_t *surface = abstract_surface;
return _cairo_surface_acquire_source_image (surface->backing,
image_out, image_extra);
}
static void
_test_fallback_surface_release_source_image (void *abstract_surface,
cairo_image_surface_t *image,
void *image_extra)
{
test_fallback_surface_t *surface = abstract_surface;
_cairo_surface_release_source_image (surface->backing,
image, image_extra);
}
static cairo_status_t
_test_fallback_surface_acquire_dest_image (void *abstract_surface,
cairo_rectangle_int_t *interest_rect,
cairo_image_surface_t **image_out,
cairo_rectangle_int_t *image_rect_out,
void **image_extra)
{
test_fallback_surface_t *surface = abstract_surface;
return _cairo_surface_acquire_dest_image (surface->backing,
interest_rect,
image_out,
image_rect_out,
image_extra);
}
static void
_test_fallback_surface_release_dest_image (void *abstract_surface,
cairo_rectangle_int_t *interest_rect,
cairo_image_surface_t *image,
cairo_rectangle_int_t *image_rect,
void *image_extra)
{
test_fallback_surface_t *surface = abstract_surface;
_cairo_surface_release_dest_image (surface->backing,
interest_rect,
image,
image_rect,
image_extra);
}
static cairo_status_t
_test_fallback_surface_clone_similar (void *abstract_surface,
cairo_surface_t *src,
int src_x,
int src_y,
int width,
int height,
int *clone_offset_x,
int *clone_offset_y,
cairo_surface_t **clone_out)
{
test_fallback_surface_t *surface = abstract_surface;
if (src->backend == surface->base.backend) {
*clone_offset_x = 0;
*clone_offset_y = 0;
*clone_out = cairo_surface_reference (src);
return CAIRO_STATUS_SUCCESS;
}
return CAIRO_INT_STATUS_UNSUPPORTED;
}
static cairo_bool_t
_test_fallback_surface_get_extents (void *abstract_surface,
cairo_rectangle_int_t *rectangle)
{
test_fallback_surface_t *surface = abstract_surface;
return _cairo_surface_get_extents (surface->backing, rectangle);
}
static const cairo_surface_backend_t test_fallback_surface_backend = {
CAIRO_INTERNAL_SURFACE_TYPE_TEST_FALLBACK,
_test_fallback_surface_create_similar,
_test_fallback_surface_finish,
_test_fallback_surface_acquire_source_image,
_test_fallback_surface_release_source_image,
_test_fallback_surface_acquire_dest_image,
_test_fallback_surface_release_dest_image,
_test_fallback_surface_clone_similar,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
_test_fallback_surface_get_extents,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL
};