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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2007 Blender Foundation. All rights reserved. */
/** \file
* \ingroup nodes
*/
#pragma once
#include "DNA_listBase.h"
#include "BLI_utildefines.h"
#include "BKE_node.h"
#include "node_util.h"
#include "RNA_types.h"
#ifdef __cplusplus
extern "C" {
#endif
struct bNode;
struct bNodeStack;
struct bNodeTree;
/* Node execution data */
typedef struct bNodeExec {
/** Backpointer to node. */
struct bNode *node;
bNodeExecData data;
/** Free function, stored in exec itself to avoid dangling node pointer access. */
NodeFreeExecFunction free_exec_fn;
} 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;
bool used;
} bNodeThreadStack;
/** For a given socket, find the actual stack entry. */
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 bNodeExecContext *context,
struct bNodeTree *ntree,
bNodeInstanceKey parent_key);
void ntree_exec_end(struct bNodeTreeExec *exec);
#ifdef __cplusplus
}
#endif
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