mirror of
https://gitlab.uni-freiburg.de/opensourcevdi/spice
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70f04bdab3
Scan remaining code searching for problems with structure layout assumptions in the code. Where code required some restructuring put some verify checks to make sure code won't compile if these assumptions are not in place anymore. Signed-off-by: Frediano Ziglio <fziglio@redhat.com> Acked-by: Jonathon Jongsma <jjongsma@redhat.com>
95 lines
2.9 KiB
C
95 lines
2.9 KiB
C
/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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/*
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Copyright (C) 2009-2015 Red Hat, Inc.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TREE_H_
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# define TREE_H_
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#include <stdint.h>
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#include <common/region.h>
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#include <common/ring.h>
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#include "spice-bitmap-utils.h"
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enum {
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TREE_ITEM_TYPE_NONE,
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TREE_ITEM_TYPE_DRAWABLE,
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TREE_ITEM_TYPE_CONTAINER,
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TREE_ITEM_TYPE_SHADOW,
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TREE_ITEM_TYPE_LAST,
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};
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typedef struct TreeItem TreeItem;
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typedef struct Shadow Shadow;
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typedef struct Container Container;
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typedef struct DrawItem DrawItem;
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/* TODO consider GNode instead */
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struct TreeItem {
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RingItem siblings_link;
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uint32_t type;
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Container *container;
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QRegion rgn;
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};
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/* A region "below" a copy, or the src region of the copy */
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struct Shadow {
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TreeItem base;
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QRegion on_hold;
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DrawItem* owner;
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};
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#define IS_SHADOW(item) ((item)->type == TREE_ITEM_TYPE_SHADOW)
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#define SHADOW(item) SPICE_CONTAINEROF(item, Shadow, base)
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struct Container {
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TreeItem base;
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Ring items;
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};
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#define IS_CONTAINER(item) ((item)->type == TREE_ITEM_TYPE_CONTAINER)
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#define CONTAINER(item) SPICE_CONTAINEROF(item, Container, base)
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struct DrawItem {
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TreeItem base;
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uint8_t effect;
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uint8_t container_root;
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Shadow *shadow;
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};
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#define IS_DRAW_ITEM(item) ((item)->type == TREE_ITEM_TYPE_DRAWABLE)
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#define DRAW_ITEM(item) SPICE_CONTAINEROF(item, DrawItem, base)
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static inline int is_opaque_item(TreeItem *item)
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{
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return item->type == TREE_ITEM_TYPE_CONTAINER ||
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(IS_DRAW_ITEM(item) && DRAW_ITEM(item)->effect == QXL_EFFECT_OPAQUE);
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}
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void tree_item_dump (TreeItem *item);
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Shadow* tree_item_find_shadow (TreeItem *item);
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int tree_item_contained_by (TreeItem *item, Ring *ring);
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Ring* tree_item_container_items (TreeItem *item, Ring *ring);
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void draw_item_remove_shadow (DrawItem *item);
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Shadow* shadow_new (DrawItem *item, const SpicePoint *delta);
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Container* container_new (DrawItem *item);
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void container_free (Container *container);
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void container_cleanup (Container *container);
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#endif /* TREE_H_ */
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