test-fallback-surface.c [plain text]
#include "test-fallback-surface.h"
#include "cairoint.h"
typedef struct _test_fallback_surface {
cairo_surface_t base;
cairo_surface_t *backing;
} test_fallback_surface_t;
const cairo_private cairo_surface_backend_t test_fallback_surface_backend;
cairo_surface_t *
_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 (cairo_surface_t*) &_cairo_surface_nil;
surface = malloc (sizeof (test_fallback_surface_t));
if (surface == NULL) {
_cairo_error (CAIRO_STATUS_NO_MEMORY);
return (cairo_surface_t*) &_cairo_surface_nil;
}
_cairo_surface_init (&surface->base, &test_fallback_surface_backend);
surface->backing = backing;
return &surface->base;
}
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 _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_t *interest_rect,
cairo_image_surface_t**image_out,
cairo_rectangle_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_t *interest_rect,
cairo_image_surface_t*image,
cairo_rectangle_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_int_status_t
_test_fallback_surface_get_extents (void *abstract_surface,
cairo_rectangle_t *rectangle)
{
test_fallback_surface_t *surface = abstract_surface;
return _cairo_surface_get_extents (surface->backing, rectangle);
}
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,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
_test_fallback_surface_get_extents,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL
};