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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): None Yet
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/depsgraph/intern/depsgraph_query.cc
* \ingroup depsgraph
*
* Implementation of Querying and Filtering API's
*/
#include "MEM_guardedalloc.h"
extern "C" {
#include <string.h> // XXX: memcpy
#include "BLI_utildefines.h"
#include "BKE_idcode.h"
#include "BKE_main.h"
#include "BLI_listbase.h"
#include "BKE_action.h" // XXX: BKE_pose_channel_from_name
} /* extern "C" */
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "RNA_access.h"
#include "DEG_depsgraph.h"
#include "DEG_depsgraph_query.h"
#include "intern/eval/deg_eval_copy_on_write.h"
#include "intern/depsgraph_intern.h"
#include "intern/nodes/deg_node_id.h"
struct Scene *DEG_get_input_scene(const Depsgraph *graph)
{
const DEG::Depsgraph *deg_graph = reinterpret_cast<const DEG::Depsgraph *>(graph);
return deg_graph->scene;
}
struct ViewLayer *DEG_get_input_view_layer(const Depsgraph *graph)
{
const DEG::Depsgraph *deg_graph = reinterpret_cast<const DEG::Depsgraph *>(graph);
return deg_graph->view_layer;
}
eEvaluationMode DEG_get_mode(const Depsgraph *graph)
{
const DEG::Depsgraph *deg_graph = reinterpret_cast<const DEG::Depsgraph *>(graph);
return deg_graph->mode;
}
float DEG_get_ctime(const Depsgraph *graph)
{
const DEG::Depsgraph *deg_graph = reinterpret_cast<const DEG::Depsgraph *>(graph);
return deg_graph->ctime;
}
bool DEG_id_type_tagged(Main *bmain, short id_type)
{
return bmain->id_tag_update[BKE_idcode_to_index(id_type)] != 0;
}
short DEG_get_eval_flags_for_id(const Depsgraph *graph, ID *id)
{
if (graph == NULL) {
/* Happens when converting objects to mesh from a python script
* after modifying scene graph.
*
* Currently harmless because it's only called for temporary
* objects which are out of the DAG anyway.
*/
return 0;
}
const DEG::Depsgraph *deg_graph = reinterpret_cast<const DEG::Depsgraph *>(graph);
const DEG::IDDepsNode *id_node = deg_graph->find_id_node(id);
if (id_node == NULL) {
/* TODO(sergey): Does it mean we need to check set scene? */
return 0;
}
return id_node->eval_flags;
}
Scene *DEG_get_evaluated_scene(const Depsgraph *graph)
{
const DEG::Depsgraph *deg_graph =
reinterpret_cast<const DEG::Depsgraph *>(graph);
Scene *scene_cow = deg_graph->scene_cow;
/* TODO(sergey): Shall we expand datablock here? Or is it OK to assume
* that calleer is OK with just a pointer in case scene is not up[dated
* yet?
*/
BLI_assert(DEG::deg_copy_on_write_is_expanded(&scene_cow->id));
return scene_cow;
}
ViewLayer *DEG_get_evaluated_view_layer(const Depsgraph *graph)
{
const DEG::Depsgraph *deg_graph =
reinterpret_cast<const DEG::Depsgraph *>(graph);
Scene *scene_cow = DEG_get_evaluated_scene(graph);
/* Do name-based lookup. */
/* TODO(sergey): Can this be optimized? */
ViewLayer *view_layer_orig = deg_graph->view_layer;
ViewLayer *view_layer_cow =
(ViewLayer *)BLI_findstring(&scene_cow->view_layers,
view_layer_orig->name,
offsetof(ViewLayer, name));
BLI_assert(view_layer_cow != NULL);
return view_layer_cow;
}
Object *DEG_get_evaluated_object(const Depsgraph *depsgraph, Object *object)
{
return (Object *)DEG_get_evaluated_id(depsgraph, &object->id);
}
ID *DEG_get_evaluated_id(const Depsgraph *depsgraph, ID *id)
{
if (id == NULL) {
return NULL;
}
/* TODO(sergey): This is a duplicate of Depsgraph::get_cow_id(),
* but here we never do assert, since we don't know nature of the
* incoming ID datablock.
*/
const DEG::Depsgraph *deg_graph = (const DEG::Depsgraph *)depsgraph;
const DEG::IDDepsNode *id_node = deg_graph->find_id_node(id);
if (id_node == NULL) {
return id;
}
return id_node->id_cow;
}
/* Get evaluated version of data pointed to by RNA pointer */
void DEG_get_evaluated_rna_pointer(const Depsgraph *depsgraph, const PointerRNA *ptr, PointerRNA *r_ptr_eval)
{
if ((ptr == NULL) || (r_ptr_eval == NULL)) {
return;
}
if ((ptr->id.data == ptr->data)) {
ID *orig_id = (ID *)ptr->id.data;
ID *cow_id = DEG_get_evaluated_id(depsgraph, orig_id);
/* For ID pointers, it's easy... */
r_ptr_eval->id.data = (void *)cow_id;
r_ptr_eval->data = (void *)cow_id;
r_ptr_eval->type = ptr->type;
}
else {
/* XXX: Hack for common cases... Proper fix needs to be made still... A very tricky problem though! */
if (ptr->type == &RNA_PoseBone) {
const Object *ob_eval = (Object *)DEG_get_evaluated_id(depsgraph, (ID *)ptr->id.data);
bPoseChannel *pchan = (bPoseChannel *)ptr->data;
const bPoseChannel *pchan_eval = BKE_pose_channel_find_name(ob_eval->pose, pchan->name);
/* XXX: Hack - This is just temporary... but this case must be supported. */
r_ptr_eval->id.data = (void *)&ob_eval->id;
r_ptr_eval->data = (void *)pchan_eval;
r_ptr_eval->type = ptr->type;
}
else {
/* FIXME: Maybe we should try resolving paths, or using some kind of depsgraph lookup? */
// XXX: For now, just use dirty hack, and hope it doesn't cause nasty issues.
*r_ptr_eval = *ptr;
}
}
}
Object *DEG_get_original_object(Object *object)
{
return (Object *)DEG_get_original_id(&object->id);
}
ID *DEG_get_original_id(ID *id)
{
if (id == NULL) {
return NULL;
}
if (id->orig_id == NULL) {
return id;
}
BLI_assert((id->tag & LIB_TAG_COPY_ON_WRITE) != 0);
return (ID *)id->orig_id;
}
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