static cairo_image_surface_t *
_cairo_xcb_surface_map_to_image (void *abstract_surface,
const cairo_rectangle_int_t *extents)
{
cairo_xcb_surface_t *surface = abstract_surface;
cairo_surface_t *image;
cairo_status_t status;
if (surface->fallback)
return _cairo_surface_map_to_image (&surface->fallback->base, extents);
image = _get_image (surface, TRUE,
extents->x, extents->y,
extents->width, extents->height);
status = cairo_surface_status (image);
if (unlikely (status)) {
cairo_surface_destroy(image);
return _cairo_image_surface_create_in_error (status);
}
/* Do we have a deferred clear and this image surface does NOT cover the
* whole xcb surface? Have to apply the clear in that case, else
* uploading the image will handle the problem for us.
*/
if (surface->deferred_clear &&
! (extents->width == surface->width &&
extents->height == surface->height)) {
status = _cairo_xcb_surface_clear (surface);
if (unlikely (status)) {
cairo_surface_destroy(image);
return _cairo_image_surface_create_in_error (status);
}
}
surface->deferred_clear = FALSE;
cairo_surface_set_device_offset (image, -extents->x, -extents->y);
return (cairo_image_surface_t *) image;
}
static cairo_image_surface_t *
_cairo_win32_display_surface_map_to_image (void *abstract_surface,
const cairo_rectangle_int_t *extents)
{
cairo_win32_display_surface_t *surface = abstract_surface;
cairo_status_t status;
TRACE ((stderr, "%s (surface=%d)\n",
__FUNCTION__, surface->win32.base.unique_id));
if (surface->image)
goto done;
if (surface->fallback == NULL) {
surface->fallback =
_cairo_win32_display_surface_create_for_dc (surface->win32.dc,
surface->win32.format,
surface->win32.extents.width,
surface->win32.extents.height);
if (unlikely (status = surface->fallback->status))
goto err;
if (!BitBlt (to_win32_surface(surface->fallback)->dc,
0, 0,
surface->win32.extents.width,
surface->win32.extents.height,
surface->win32.dc,
0, 0,
SRCCOPY)) {
status = _cairo_error (CAIRO_STATUS_DEVICE_ERROR);
goto err;
}
}
surface = to_win32_display_surface (surface->fallback);
done:
GdiFlush();
return _cairo_surface_map_to_image (surface->image, extents);
err:
cairo_surface_destroy (surface->fallback);
surface->fallback = NULL;
return _cairo_image_surface_create_in_error (status);
}
