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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 "BLI_math.h"
#include "BKE_anim.h"
#include "BKE_idcode.h"
#include "BKE_layer.h"
#include "BKE_main.h"
} /* extern "C" */
#include "DNA_object_types.h"
#include "DNA_scene_types.h"
#include "DEG_depsgraph.h"
#include "DEG_depsgraph_query.h"
#include "intern/depsgraph_intern.h"
#include "util/deg_util_foreach.h"
bool DEG_id_type_tagged(Main *bmain, short idtype)
{
return bmain->id_tag_update[BKE_idcode_to_index(idtype)] != 0;
}
short DEG_get_eval_flags_for_id(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;
}
DEG::Depsgraph *deg_graph = reinterpret_cast<DEG::Depsgraph *>(graph);
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_scene(Depsgraph *graph)
{
DEG::Depsgraph *deg_graph = reinterpret_cast<DEG::Depsgraph *>(graph);
return deg_graph->scene;
}
SceneLayer *DEG_get_scene_layer(Depsgraph *graph)
{
Scene *scene = DEG_get_scene(graph);
if (scene) {
return BKE_scene_layer_context_active(scene);
}
return NULL;
}
Object *DEG_get_object(Depsgraph * /*depsgraph*/, Object *ob)
{
/* XXX TODO */
return ob;
}
/* ************************ DAG ITERATORS ********************* */
#define BASE_FLUSH_FLAGS (BASE_FROM_SET | BASE_FROMDUPLI)
void DEG_objects_iterator_begin(BLI_Iterator *iter, DEGObjectsIteratorData *data)
{
Depsgraph *graph = data->graph;
SceneLayer *scene_layer = DEG_get_scene_layer(graph);
iter->data = data;
iter->valid = true;
data->scene = DEG_get_scene(graph);
DEG_evaluation_context_init(&data->eval_ctx, DAG_EVAL_RENDER);
/* TODO(sergey): It's really confusing to store pointer to a local data. */
Base base = {(Base *)scene_layer->object_bases.first, NULL};
data->base = &base;
data->base_flag = ~(BASE_FLUSH_FLAGS);
data->dupli_parent = NULL;
data->dupli_list = NULL;
data->dupli_object_next = NULL;
data->dupli_object_current = NULL;
DEG_objects_iterator_next(iter);
}
/**
* Temporary function to flush depsgraph until we get copy on write (CoW)
*/
static void deg_flush_base_flags_and_settings(Object *ob, Base *base, const int flag)
{
ob->base_flag = (base->flag | BASE_FLUSH_FLAGS) & flag;
ob->base_collection_properties = base->collection_properties;
}
static bool deg_objects_dupli_iterator_next(BLI_Iterator *iter)
{
DEGObjectsIteratorData *data = (DEGObjectsIteratorData *)iter->data;
while (data->dupli_object_next != NULL) {
DupliObject *dob = data->dupli_object_next;
Object *obd = dob->ob;
data->dupli_object_next = data->dupli_object_next->next;
/* Group duplis need to set ob matrices correct, for deform. so no_draw
* is part handled.
*/
if ((obd->transflag & OB_RENDER_DUPLI) == 0 && dob->no_draw) {
continue;
}
if (obd->type == OB_MBALL) {
continue;
}
data->dupli_object_current = dob;
/* Temporary object to evaluate. */
data->temp_dupli_object = *dob->ob;
data->temp_dupli_object.select_color = data->dupli_parent->select_color;
copy_m4_m4(data->temp_dupli_object.obmat, dob->mat);
deg_flush_base_flags_and_settings(&data->temp_dupli_object,
data->base,
data->base_flag | BASE_FROMDUPLI);
iter->current = &data->temp_dupli_object;
return true;
}
return false;
}
void DEG_objects_iterator_next(BLI_Iterator *iter)
{
DEGObjectsIteratorData *data = (DEGObjectsIteratorData *)iter->data;
Base *base;
if (data->dupli_list) {
if (deg_objects_dupli_iterator_next(iter)) {
return;
}
else {
free_object_duplilist(data->dupli_list);
data->dupli_parent = NULL;
data->dupli_list = NULL;
data->dupli_object_next = NULL;
data->dupli_object_current = NULL;
}
}
base = data->base->next;
while (base != NULL) {
if ((base->flag & BASE_VISIBLED) != 0) {
Object *ob = DEG_get_object(data->graph, base->object);
iter->current = ob;
data->base = base;
/* Make sure we have the base collection settings is already populated.
* This will fail when BKE_layer_eval_layer_collection_pre hasn't run yet
* Which usually means a missing call to DAG_id_tag_update(). */
BLI_assert(!BLI_listbase_is_empty(&base->collection_properties->data.group));
/* Flushing depsgraph data. */
deg_flush_base_flags_and_settings(ob,
base,
data->base_flag);
if ((data->flag & DEG_OBJECT_ITER_FLAG_DUPLI) && (ob->transflag & OB_DUPLI)) {
data->dupli_parent = ob;
data->dupli_list = object_duplilist(&data->eval_ctx, data->scene, ob);
data->dupli_object_next = (DupliObject *)data->dupli_list->first;
}
return;
}
base = base->next;
}
/* Look for an object in the next set. */
if ((data->flag & DEG_OBJECT_ITER_FLAG_SET) && data->scene->set) {
SceneLayer *scene_layer;
data->scene = data->scene->set;
data->base_flag = ~(BASE_SELECTED | BASE_SELECTABLED);
/* For the sets we use the layer used for rendering. */
scene_layer = BKE_scene_layer_render_active(data->scene);
/* TODO(sergey): It's really confusing to store pointer to a local data. */
Base base = {(Base *)scene_layer->object_bases.first, NULL};
data->base = &base;
DEG_objects_iterator_next(iter);
return;
}
iter->current = NULL;
iter->valid = false;
}
void DEG_objects_iterator_end(BLI_Iterator *iter)
{
#ifndef NDEBUG
DEGObjectsIteratorData *data = (DEGObjectsIteratorData *)iter->data;
/* Force crash in case the iterator data is referenced and accessed down the line. (T51718) */
memset(&data->temp_dupli_object, 0xff, sizeof(data->temp_dupli_object));
#else
(void) iter;
#endif
}
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