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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) 2013 Blender Foundation.
* All rights reserved.
*
* Original Author: Joshua Leung
* Contributor(s): Sergey Sharybin
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/depsgraph/DEG_depsgraph_query.h
* \ingroup depsgraph
*
* Public API for Querying and Filtering Depsgraph.
*/
#ifndef __DEG_DEPSGRAPH_QUERY_H__
#define __DEG_DEPSGRAPH_QUERY_H__
#include "DEG_depsgraph.h"
struct ID;
struct Base;
struct BLI_Iterator;
struct Depsgraph;
struct DupliObject;
struct ListBase;
struct Scene;
struct SceneLayer;
#ifdef __cplusplus
extern "C" {
#endif
/* Check if given ID type was tagged for update. */
bool DEG_id_type_tagged(struct Main *bmain, short id_type);
/* Get additional evaluation flags for the given ID. */
short DEG_get_eval_flags_for_id(struct Depsgraph *graph, struct ID *id);
/* Get scene the despgraph is created for. */
struct Scene *DEG_get_evaluated_scene(struct Depsgraph *graph);
/* Get scene layer the despgraph is created for. */
struct SceneLayer *DEG_get_evaluated_scene_layer(struct Depsgraph *graph);
/* Get evaluated version of object for given original one. */
struct Object *DEG_get_evaluated_object(struct Depsgraph *depsgraph, struct Object *object);
/* Get evaluated version of given ID datablock. */
struct ID *DEG_get_evaluated_id(struct Depsgraph *depsgraph, struct ID *id);
/* ************************ DAG iterators ********************* */
enum {
DEG_OBJECT_ITER_FLAG_SET = (1 << 0),
DEG_OBJECT_ITER_FLAG_DUPLI = (1 << 1),
};
#define DEG_OBJECT_ITER_FLAG_ALL (DEG_OBJECT_ITER_FLAG_SET | DEG_OBJECT_ITER_FLAG_DUPLI)
typedef struct DEGObjectsIteratorData {
struct Depsgraph *graph;
struct Scene *scene;
struct EvaluationContext eval_ctx;
/* TODO(sergey): Base should never be a thing coming FROM depsgraph. */
struct Base *base;
int base_flag;
int flag;
/* **** Iteration over dupli-list. *** */
/* Object which created the dupli-list. */
struct Object *dupli_parent;
/* List of duplicated objects. */
struct ListBase *dupli_list;
/* Next duplicated object to step into. */
struct DupliObject *dupli_object_next;
/* Corresponds to current object: current iterator object is evaluated from
* this duplicated object.
*/
struct DupliObject *dupli_object_current;
/* Temporary storage to report fully populated DNA to the render engine or
* other users of the iterator.
*/
struct Object temp_dupli_object;
} DEGObjectsIteratorData;
void DEG_objects_iterator_begin(struct BLI_Iterator *iter, DEGObjectsIteratorData *data);
void DEG_objects_iterator_next(struct BLI_Iterator *iter);
void DEG_objects_iterator_end(struct BLI_Iterator *iter);
/* Temporary hacky solution waiting for cow depsgraph implementation. */
#define DEG_OBJECT_ITER(graph_, instance_, flag_) \
{ \
DEGObjectsIteratorData data_ = { \
.graph = (graph_), \
.flag = (flag_), \
}; \
\
ITER_BEGIN(DEG_objects_iterator_begin, \
DEG_objects_iterator_next, \
DEG_objects_iterator_end, \
&data_, Object *, instance_)
#define DEG_OBJECT_ITER_END \
ITER_END \
}
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* __DEG_DEPSGRAPH_QUERY_H__ */
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