C++ (Cpp) _cairo_composite_rectangles_can_reduce_clip Examples

Example #1

File: cairo-gl-msaa-compositor.c Project: mrobinson/cairo

static cairo_int_status_t
_scissor_and_clip (cairo_gl_context_t		*ctx,
		   cairo_gl_composite_t		*setup,
		   cairo_composite_rectangles_t	*composite,
		   cairo_bool_t			*used_stencil_buffer)
{
    cairo_gl_surface_t *dst = (cairo_gl_surface_t *) composite->surface;
    cairo_rectangle_int_t *bounds = &composite->unbounded;
    cairo_clip_t *clip = composite->clip;
    cairo_rectangle_int_t r;

    *used_stencil_buffer = FALSE;

    if (_cairo_composite_rectangles_can_reduce_clip (composite, clip)) {
	_scissor_to_rectangle (dst, bounds);
	return CAIRO_INT_STATUS_SUCCESS;
    }

    /* If we cannot reduce the clip to a rectangular region,
       we scissor and clip using the stencil buffer */
    if (clip->num_boxes > 1 || clip->path != NULL) {
	*used_stencil_buffer = TRUE;
	_scissor_to_rectangle (dst, bounds);
	return _draw_clip_to_stencil_buffer (ctx, setup, clip);
    }

    /* Always interpret the clip path as ANTIALIAS_NONE */
    _cairo_box_round_to_rectangle (clip->boxes, &r);
    _scissor_to_rectangle (dst, &r);
    return CAIRO_INT_STATUS_SUCCESS;
}

Example #2

File: cairo-gl-msaa-compositor.c Project: GuoCheng111/WinCairoRequirements

static void
_cairo_gl_msaa_compositor_set_clip (cairo_composite_rectangles_t *composite,
                                    cairo_gl_composite_t *setup)
{
    if (_cairo_composite_rectangles_can_reduce_clip (composite, composite->clip))
        return;
    _cairo_gl_composite_set_clip (setup, composite->clip);
}

Example #3

File: cairo-gl-msaa-compositor.c Project: csyuschmjuh/apl

static void
_cairo_gl_msaa_compositor_set_clip (cairo_composite_rectangles_t *composite,
				    cairo_gl_composite_t *setup)
{
    uint32_t is_bounded;

    if (_cairo_clip_is_all_clipped (composite->clip))
	return;

    /* We don't need to check CAIRO_OPERATOR_BOUND_BY_MASK in these
       situations. */
    is_bounded = composite->is_bounded;
    composite->is_bounded = CAIRO_OPERATOR_BOUND_BY_SOURCE;
    if (_cairo_composite_rectangles_can_reduce_clip (composite, composite->clip))
	return;

    _cairo_gl_composite_set_clip (setup, composite->clip);

    composite->is_bounded = is_bounded;
}