static cairo_bool_t
recording_pattern_contains_sample (const cairo_pattern_t *pattern,
const cairo_rectangle_int_t *sample)
{
cairo_recording_surface_t *surface;
if (! is_recording_pattern (pattern))
return FALSE;
if (pattern->extend == CAIRO_EXTEND_NONE)
return TRUE;
surface = (cairo_recording_surface_t *) unwrap_source (pattern);
if (surface->unbounded)
return TRUE;
return _cairo_rectangle_contains_rectangle (&surface->extents, sample);
}
static cairo_bool_t
_cairo_clip_contains_rectangle_box (const cairo_clip_t *clip,
const cairo_rectangle_int_t *rect,
const cairo_box_t *box)
{
int i;
/* clip == NULL means no clip, so the clip contains everything */
if (clip == NULL)
return TRUE;
if (_cairo_clip_is_all_clipped (clip))
return FALSE;
/* If we have a non-trivial path, just say no */
if (clip->path)
return FALSE;
if (! _cairo_rectangle_contains_rectangle (&clip->extents, rect))
return FALSE;
if (clip->num_boxes == 0)
return TRUE;
/* Check for a clip-box that wholly contains the rectangle */
for (i = 0; i < clip->num_boxes; i++) {
if (box->p1.x >= clip->boxes[i].p1.x &&
box->p1.y >= clip->boxes[i].p1.y &&
box->p2.x <= clip->boxes[i].p2.x &&
box->p2.y <= clip->boxes[i].p2.y)
{
return TRUE;
}
}
return FALSE;
}
static cairo_int_status_t
_cairo_spans_compositor_stroke (const cairo_compositor_t *_compositor,
cairo_composite_rectangles_t *extents,
const cairo_path_fixed_t *path,
const cairo_stroke_style_t *style,
const cairo_matrix_t *ctm,
const cairo_matrix_t *ctm_inverse,
double tolerance,
cairo_antialias_t antialias)
{
const cairo_spans_compositor_t *compositor = (cairo_spans_compositor_t*)_compositor;
cairo_int_status_t status;
TRACE ((stderr, "%s\n", __FUNCTION__));
TRACE_ (_cairo_debug_print_path (stderr, path));
TRACE_ (_cairo_debug_print_clip (stderr, extents->clip));
status = CAIRO_INT_STATUS_UNSUPPORTED;
if (_cairo_path_fixed_stroke_is_rectilinear (path)) {
cairo_boxes_t boxes;
_cairo_boxes_init (&boxes);
if (! _cairo_clip_contains_rectangle (extents->clip, &extents->mask))
_cairo_boxes_limit (&boxes,
extents->clip->boxes,
extents->clip->num_boxes);
status = _cairo_path_fixed_stroke_rectilinear_to_boxes (path,
style,
ctm,
antialias,
&boxes);
if (likely (status == CAIRO_INT_STATUS_SUCCESS))
status = clip_and_composite_boxes (compositor, extents, &boxes);
_cairo_boxes_fini (&boxes);
}
if (status == CAIRO_INT_STATUS_UNSUPPORTED) {
cairo_polygon_t polygon;
cairo_fill_rule_t fill_rule = CAIRO_FILL_RULE_WINDING;
if (! _cairo_rectangle_contains_rectangle (&extents->unbounded,
&extents->mask))
{
if (extents->clip->num_boxes == 1) {
_cairo_polygon_init (&polygon, extents->clip->boxes, 1);
} else {
cairo_box_t limits;
_cairo_box_from_rectangle (&limits, &extents->unbounded);
_cairo_polygon_init (&polygon, &limits, 1);
}
}
else
{
_cairo_polygon_init (&polygon, NULL, 0);
}
status = _cairo_path_fixed_stroke_to_polygon (path,
style,
ctm, ctm_inverse,
tolerance,
&polygon);
TRACE_ (_cairo_debug_print_polygon (stderr, &polygon));
polygon.num_limits = 0;
if (status == CAIRO_INT_STATUS_SUCCESS && extents->clip->num_boxes > 1) {
status = _cairo_polygon_intersect_with_boxes (&polygon, &fill_rule,
extents->clip->boxes,
extents->clip->num_boxes);
}
if (likely (status == CAIRO_INT_STATUS_SUCCESS)) {
cairo_clip_t *saved_clip = extents->clip;
if (extents->is_bounded) {
extents->clip = _cairo_clip_copy_path (extents->clip);
extents->clip = _cairo_clip_intersect_box(extents->clip,
&polygon.extents);
}
status = clip_and_composite_polygon (compositor, extents, &polygon,
fill_rule, antialias);
if (extents->is_bounded) {
_cairo_clip_destroy (extents->clip);
extents->clip = saved_clip;
}
}
_cairo_polygon_fini (&polygon);
}
return status;
}
static cairo_int_status_t
_cairo_spans_compositor_fill (const cairo_compositor_t *_compositor,
cairo_composite_rectangles_t *extents,
const cairo_path_fixed_t *path,
cairo_fill_rule_t fill_rule,
double tolerance,
cairo_antialias_t antialias)
{
const cairo_spans_compositor_t *compositor = (cairo_spans_compositor_t*)_compositor;
cairo_int_status_t status;
TRACE((stderr, "%s op=%d, antialias=%d\n", __FUNCTION__, extents->op, antialias));
status = CAIRO_INT_STATUS_UNSUPPORTED;
if (_cairo_path_fixed_fill_is_rectilinear (path)) {
cairo_boxes_t boxes;
TRACE((stderr, "%s - rectilinear\n", __FUNCTION__));
_cairo_boxes_init (&boxes);
if (! _cairo_clip_contains_rectangle (extents->clip, &extents->mask))
_cairo_boxes_limit (&boxes,
extents->clip->boxes,
extents->clip->num_boxes);
status = _cairo_path_fixed_fill_rectilinear_to_boxes (path,
fill_rule,
antialias,
&boxes);
if (likely (status == CAIRO_INT_STATUS_SUCCESS))
status = clip_and_composite_boxes (compositor, extents, &boxes);
_cairo_boxes_fini (&boxes);
}
if (status == CAIRO_INT_STATUS_UNSUPPORTED) {
cairo_polygon_t polygon;
TRACE((stderr, "%s - polygon\n", __FUNCTION__));
if (! _cairo_rectangle_contains_rectangle (&extents->unbounded,
&extents->mask))
{
TRACE((stderr, "%s - clipping to bounds\n", __FUNCTION__));
if (extents->clip->num_boxes == 1) {
_cairo_polygon_init (&polygon, extents->clip->boxes, 1);
} else {
cairo_box_t limits;
_cairo_box_from_rectangle (&limits, &extents->unbounded);
_cairo_polygon_init (&polygon, &limits, 1);
}
}
else
{
_cairo_polygon_init (&polygon, NULL, 0);
}
status = _cairo_path_fixed_fill_to_polygon (path, tolerance, &polygon);
TRACE_ (_cairo_debug_print_polygon (stderr, &polygon));
polygon.num_limits = 0;
if (status == CAIRO_INT_STATUS_SUCCESS && extents->clip->num_boxes > 1) {
TRACE((stderr, "%s - polygon intersect with %d clip boxes\n",
__FUNCTION__, extents->clip->num_boxes));
status = _cairo_polygon_intersect_with_boxes (&polygon, &fill_rule,
extents->clip->boxes,
extents->clip->num_boxes);
}
TRACE_ (_cairo_debug_print_polygon (stderr, &polygon));
if (likely (status == CAIRO_INT_STATUS_SUCCESS)) {
cairo_clip_t *saved_clip = extents->clip;
if (extents->is_bounded) {
TRACE((stderr, "%s - polygon discard clip boxes\n",
__FUNCTION__));
extents->clip = _cairo_clip_copy_path (extents->clip);
extents->clip = _cairo_clip_intersect_box(extents->clip,
&polygon.extents);
}
status = clip_and_composite_polygon (compositor, extents, &polygon,
fill_rule, antialias);
if (extents->is_bounded) {
_cairo_clip_destroy (extents->clip);
extents->clip = saved_clip;
}
}
_cairo_polygon_fini (&polygon);
TRACE((stderr, "%s - polygon status=%d\n", __FUNCTION__, status));
}
return status;
}
