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/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2007 Blender Foundation.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): Nathan Letwory.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/nodes/intern/node_exec.h
* \ingroup nodes
*/
#ifndef __NODE_EXEC_H__
#define __NODE_EXEC_H__
#include "DNA_listBase.h"
#include "BLI_utildefines.h"
#include "BKE_node.h"
#include "RNA_types.h"
struct bNodeTree;
struct bNode;
struct bNodeStack;
/* Node execution data */
typedef struct bNodeExec {
struct bNode *node; /* backpointer to node */
void *data; /* custom data storage */
} bNodeExec;
/* Execution Data for each instance of node tree execution */
typedef struct bNodeTreeExec {
struct bNodeTree *nodetree; /* backpointer to node tree */
int totnodes; /* total node count */
struct bNodeExec *nodeexec; /* per-node execution data */
int stacksize;
struct bNodeStack *stack; /* socket data stack */
/* only used by material and texture trees to keep one stack for each thread */
ListBase *threadstack; /* one instance of the stack for each thread */
} bNodeTreeExec;
/* stores one stack copy for each thread (material and texture trees) */
typedef struct bNodeThreadStack {
struct bNodeThreadStack *next, *prev;
struct bNodeStack *stack;
int used;
} bNodeThreadStack;
struct bNodeStack *node_get_socket_stack(struct bNodeStack *stack, struct bNodeSocket *sock);
void node_get_stack(struct bNode *node, struct bNodeStack *stack, struct bNodeStack **in, struct bNodeStack **out);
struct bNodeTreeExec *ntree_exec_begin(struct bNodeTree *ntree);
void ntree_exec_end(struct bNodeTreeExec *exec);
void ntreeExecNodes(struct bNodeTreeExec *exec, void *callerdata, int thread);
struct bNodeThreadStack *ntreeGetThreadStack(struct bNodeTreeExec *exec, int thread);
void ntreeReleaseThreadStack(struct bNodeThreadStack *nts);
void ntreeExecThreadNodes(struct bNodeTreeExec *exec, struct bNodeThreadStack *nts, void *callerdata, int thread);
#endif
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