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Diffstat (limited to 'Build/source/libs/cairo/cairo-1.14.2/src/cairo-rtree-private.h')
| -rw-r--r-- | Build/source/libs/cairo/cairo-1.14.2/src/cairo-rtree-private.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/Build/source/libs/cairo/cairo-1.14.2/src/cairo-rtree-private.h b/Build/source/libs/cairo/cairo-1.14.2/src/cairo-rtree-private.h new file mode 100644 index 00000000000..27806cab603 --- /dev/null +++ b/Build/source/libs/cairo/cairo-1.14.2/src/cairo-rtree-private.h @@ -0,0 +1,142 @@ +/* cairo - a vector graphics library with display and print output + * + * Copyright © 2009 Chris Wilson + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + * + * The Original Code is the cairo graphics library. + * + * The Initial Developer of the Original Code is Chris Wilson. + * + * Contributor(s): + * Chris Wilson <chris@chris-wilson.co.uk> + * + */ + +#ifndef CAIRO_RTREE_PRIVATE_H +#define CAIRO_RTREE_PRIVATE_H + +#include "cairo-compiler-private.h" +#include "cairo-error-private.h" +#include "cairo-types-private.h" + +#include "cairo-freelist-private.h" +#include "cairo-list-inline.h" + +enum { + CAIRO_RTREE_NODE_AVAILABLE, + CAIRO_RTREE_NODE_DIVIDED, + CAIRO_RTREE_NODE_OCCUPIED, +}; + +typedef struct _cairo_rtree_node { + struct _cairo_rtree_node *children[4], *parent; + cairo_list_t link; + uint16_t pinned; + uint16_t state; + uint16_t x, y; + uint16_t width, height; +} cairo_rtree_node_t; + +typedef struct _cairo_rtree { + cairo_rtree_node_t root; + int min_size; + cairo_list_t pinned; + cairo_list_t available; + cairo_list_t evictable; + void (*destroy) (cairo_rtree_node_t *); + cairo_freepool_t node_freepool; +} cairo_rtree_t; + +cairo_private cairo_rtree_node_t * +_cairo_rtree_node_create (cairo_rtree_t *rtree, + cairo_rtree_node_t *parent, + int x, + int y, + int width, + int height); + +cairo_private cairo_status_t +_cairo_rtree_node_insert (cairo_rtree_t *rtree, + cairo_rtree_node_t *node, + int width, + int height, + cairo_rtree_node_t **out); + +cairo_private void +_cairo_rtree_node_collapse (cairo_rtree_t *rtree, cairo_rtree_node_t *node); + +cairo_private void +_cairo_rtree_node_remove (cairo_rtree_t *rtree, cairo_rtree_node_t *node); + +cairo_private void +_cairo_rtree_node_destroy (cairo_rtree_t *rtree, cairo_rtree_node_t *node); + +cairo_private void +_cairo_rtree_init (cairo_rtree_t *rtree, + int width, + int height, + int min_size, + int node_size, + void (*destroy)(cairo_rtree_node_t *)); + +cairo_private cairo_int_status_t +_cairo_rtree_insert (cairo_rtree_t *rtree, + int width, + int height, + cairo_rtree_node_t **out); + +cairo_private cairo_int_status_t +_cairo_rtree_evict_random (cairo_rtree_t *rtree, + int width, + int height, + cairo_rtree_node_t **out); + +cairo_private void +_cairo_rtree_foreach (cairo_rtree_t *rtree, + void (*func)(cairo_rtree_node_t *, void *data), + void *data); + +static inline void * +_cairo_rtree_pin (cairo_rtree_t *rtree, cairo_rtree_node_t *node) +{ + assert (node->state == CAIRO_RTREE_NODE_OCCUPIED); + if (! node->pinned) { + cairo_list_move (&node->link, &rtree->pinned); + node->pinned = 1; + } + + return node; +} + +cairo_private void +_cairo_rtree_unpin (cairo_rtree_t *rtree); + +cairo_private void +_cairo_rtree_reset (cairo_rtree_t *rtree); + +cairo_private void +_cairo_rtree_fini (cairo_rtree_t *rtree); + +#endif /* CAIRO_RTREE_PRIVATE_H */ |