static cairo_int_status_t
composite_polygon (const cairo_spans_compositor_t *compositor,
cairo_composite_rectangles_t *extents,
cairo_polygon_t *polygon,
cairo_fill_rule_t fill_rule,
cairo_antialias_t antialias)
{
cairo_abstract_span_renderer_t renderer;
cairo_scan_converter_t *converter;
cairo_bool_t needs_clip;
cairo_int_status_t status;
needs_clip = composite_needs_clip (extents, &polygon->extents);
if (needs_clip) {
return CAIRO_INT_STATUS_UNSUPPORTED;
converter = _cairo_clip_tor_scan_converter_create (extents->clip,
polygon,
fill_rule, antialias);
} else {
const cairo_rectangle_int_t *r = &extents->bounded;
if (antialias == CAIRO_ANTIALIAS_FAST) {
converter = _cairo_tor22_scan_converter_create (r->x, r->y,
r->x + r->width,
r->y + r->height,
fill_rule, antialias);
status = _cairo_tor22_scan_converter_add_polygon (converter, polygon);
} else if (antialias == CAIRO_ANTIALIAS_NONE) {
converter = _cairo_mono_scan_converter_create (r->x, r->y,
r->x + r->width,
r->y + r->height,
fill_rule);
status = _cairo_mono_scan_converter_add_polygon (converter, polygon);
} else {
converter = _cairo_tor_scan_converter_create (r->x, r->y,
r->x + r->width,
r->y + r->height,
fill_rule, antialias);
status = _cairo_tor_scan_converter_add_polygon (converter, polygon);
}
}
if (unlikely (status))
goto cleanup_converter;
status = compositor->renderer_init (&renderer, extents, needs_clip);
if (likely (status == CAIRO_INT_STATUS_SUCCESS))
status = converter->generate (converter, &renderer.base);
compositor->renderer_fini (&renderer, status);
cleanup_converter:
converter->destroy (converter);
return status;
}
static cairo_int_status_t
composite_boxes (const cairo_spans_compositor_t *compositor,
cairo_composite_rectangles_t *extents,
cairo_boxes_t *boxes)
{
cairo_abstract_span_renderer_t renderer;
cairo_rectangular_scan_converter_t converter;
const struct _cairo_boxes_chunk *chunk;
cairo_int_status_t status;
cairo_box_t box;
TRACE ((stderr, "%s\n", __FUNCTION__));
_cairo_box_from_rectangle (&box, &extents->unbounded);
if (composite_needs_clip (extents, &box)) {
TRACE ((stderr, "%s: unsupported clip\n", __FUNCTION__));
return CAIRO_INT_STATUS_UNSUPPORTED;
}
_cairo_rectangular_scan_converter_init (&converter, &extents->unbounded);
for (chunk = &boxes->chunks; chunk != NULL; chunk = chunk->next) {
const cairo_box_t *box = chunk->base;
int i;
for (i = 0; i < chunk->count; i++) {
status = _cairo_rectangular_scan_converter_add_box (&converter, &box[i], 1);
if (unlikely (status))
goto cleanup_converter;
}
}
status = compositor->renderer_init (&renderer, extents,
CAIRO_ANTIALIAS_DEFAULT, FALSE);
if (likely (status == CAIRO_INT_STATUS_SUCCESS))
status = converter.base.generate (&converter.base, &renderer.base);
compositor->renderer_fini (&renderer, status);
cleanup_converter:
converter.base.destroy (&converter.base);
return status;
}
