Exemplo n.º 1
0
static cairo_int_status_t
_analyze_recording_surface_pattern (cairo_analysis_surface_t *surface,
				    const cairo_pattern_t    *pattern)
{
    const cairo_surface_pattern_t *surface_pattern;
    cairo_analysis_surface_t *tmp;
    cairo_surface_t *source, *proxy;
    cairo_matrix_t p2d;
    cairo_status_t status, analysis_status;

    assert (pattern->type == CAIRO_PATTERN_TYPE_SURFACE);
    surface_pattern = (const cairo_surface_pattern_t *) pattern;
    assert (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING);
    source = surface_pattern->surface;

    proxy = _cairo_surface_has_snapshot (source, &proxy_backend);
    if (proxy != NULL) {
	/* nothing untoward found so far */
	return CAIRO_STATUS_SUCCESS;
    }

    tmp = (cairo_analysis_surface_t *)
	_cairo_analysis_surface_create (surface->target);
    if (unlikely (tmp->base.status))
	return tmp->base.status;
    proxy = attach_proxy (source, &tmp->base);

    p2d = pattern->matrix;
    status = cairo_matrix_invert (&p2d);
    assert (status == CAIRO_STATUS_SUCCESS);

    cairo_matrix_multiply (&tmp->ctm, &p2d, &surface->ctm);
    tmp->has_ctm = ! _cairo_matrix_is_identity (&tmp->ctm);

    if (_cairo_surface_is_snapshot (source))
	source = _cairo_surface_snapshot_get_target (source);
    if (_cairo_surface_is_subsurface (source))
	source = _cairo_surface_subsurface_get_target (source);

    status = _cairo_recording_surface_replay_and_create_regions (source,
								 &tmp->base);
    analysis_status = tmp->has_unsupported ? CAIRO_INT_STATUS_IMAGE_FALLBACK : CAIRO_INT_STATUS_SUCCESS;
    detach_proxy (proxy);
    cairo_surface_destroy (&tmp->base);

    if (unlikely (status))
	return status;

    return analysis_status;
}
Exemplo n.º 2
0
static cairo_int_status_t
_analyze_recording_surface_pattern (cairo_analysis_surface_t *surface,
				    const cairo_pattern_t    *pattern,
				    cairo_rectangle_int_t    *extents)
{
    const cairo_surface_pattern_t *surface_pattern;
    cairo_analysis_surface_t *tmp;
    cairo_surface_t *source, *proxy;
    cairo_matrix_t p2d;
    cairo_int_status_t status, analysis_status;
    cairo_bool_t surface_is_unbounded;
    cairo_bool_t unused;

    assert (pattern->type == CAIRO_PATTERN_TYPE_SURFACE);
    surface_pattern = (const cairo_surface_pattern_t *) pattern;
    assert (surface_pattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING);
    source = surface_pattern->surface;

    proxy = _cairo_surface_has_snapshot (source, &proxy_backend);
    if (proxy != NULL) {
	/* nothing untoward found so far */
	return CAIRO_STATUS_SUCCESS;
    }

    tmp = (cairo_analysis_surface_t *)
	_cairo_analysis_surface_create (surface->target);
    if (unlikely (tmp->base.status)) {
	status =tmp->base.status;
	goto cleanup1;
    }
    proxy = attach_proxy (source, &tmp->base);

    p2d = pattern->matrix;
    status = cairo_matrix_invert (&p2d);
    assert (status == CAIRO_INT_STATUS_SUCCESS);
    _cairo_analysis_surface_set_ctm (&tmp->base, &p2d);


    source = _cairo_surface_get_source (source, NULL);
    surface_is_unbounded = (pattern->extend == CAIRO_EXTEND_REPEAT
				     || pattern->extend == CAIRO_EXTEND_REFLECT);
    status = _cairo_recording_surface_replay_and_create_regions (source,
								 &pattern->matrix,
								 &tmp->base,
								 surface_is_unbounded);
    if (unlikely (status))
	goto cleanup2;

    /* black background or mime data fills entire extents */
    if (!(source->content & CAIRO_CONTENT_ALPHA) || _cairo_surface_has_mime_image (source)) {
	cairo_rectangle_int_t rect;

	if (_cairo_surface_get_extents (source, &rect)) {
	    cairo_box_t bbox;

	    _cairo_box_from_rectangle (&bbox, &rect);
	    _cairo_matrix_transform_bounding_box_fixed (&p2d, &bbox, NULL);
	    _cairo_box_round_to_rectangle (&bbox, &rect);
	    status = _add_operation (tmp, &rect, CAIRO_INT_STATUS_SUCCESS);
	    if (status == CAIRO_INT_STATUS_IMAGE_FALLBACK)
		status = CAIRO_INT_STATUS_SUCCESS;
	    if (unlikely (status))
		goto cleanup2;
	}
    }

    if (tmp->has_supported) {
	surface->has_supported = TRUE;
	unused = cairo_region_union (&surface->supported_region, &tmp->supported_region);
    }

    if (tmp->has_unsupported) {
	surface->has_unsupported = TRUE;
	unused = cairo_region_union (&surface->fallback_region, &tmp->fallback_region);
    }

    analysis_status = tmp->has_unsupported ? CAIRO_INT_STATUS_IMAGE_FALLBACK : CAIRO_INT_STATUS_SUCCESS;
    if (pattern->extend != CAIRO_EXTEND_NONE) {
	_cairo_unbounded_rectangle_init (extents);
    } else {
	status = cairo_matrix_invert (&tmp->ctm);
	_cairo_matrix_transform_bounding_box_fixed (&tmp->ctm,
						    &tmp->page_bbox, NULL);
	_cairo_box_round_to_rectangle (&tmp->page_bbox, extents);
    }

  cleanup2:
    detach_proxy (proxy);
  cleanup1:
    cairo_surface_destroy (&tmp->base);

    if (unlikely (status))
	return status;

    return analysis_status;
}