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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_eval.cc
* \ingroup depsgraph
*
* Evaluation engine entrypoints for Depsgraph Engine.
*/
#include "MEM_guardedalloc.h"
extern "C" {
#include "DNA_scene_types.h"
#include "BLI_utildefines.h"
#include "BLI_ghash.h"
#include "BKE_depsgraph.h"
#include "BKE_scene.h"
#include "DEG_depsgraph.h"
} /* extern "C" */
#include "intern/eval/deg_eval.h"
#include "intern/eval/deg_eval_flush.h"
#include "intern/nodes/deg_node.h"
#include "intern/nodes/deg_node_operation.h"
#include "intern/depsgraph.h"
#ifdef WITH_LEGACY_DEPSGRAPH
static bool use_legacy_depsgraph = true;
#endif
/* Unfinished and unused, and takes quite some pre-processing time. */
#undef USE_EVAL_PRIORITY
bool DEG_depsgraph_use_legacy(void)
{
#ifdef DISABLE_NEW_DEPSGRAPH
return true;
#elif defined(WITH_LEGACY_DEPSGRAPH)
return use_legacy_depsgraph;
#else
BLI_assert(!"Should not be used with new depsgraph");
return false;
#endif
}
void DEG_depsgraph_switch_to_legacy(void)
{
#ifdef WITH_LEGACY_DEPSGRAPH
use_legacy_depsgraph = true;
#else
BLI_assert(!"Should not be used with new depsgraph");
#endif
}
void DEG_depsgraph_switch_to_new(void)
{
#ifdef WITH_LEGACY_DEPSGRAPH
use_legacy_depsgraph = false;
#else
BLI_assert(!"Should not be used with new depsgraph");
#endif
}
/* ****************** */
/* Evaluation Context */
/* Create new evaluation context. */
EvaluationContext *DEG_evaluation_context_new(int mode)
{
EvaluationContext *eval_ctx =
(EvaluationContext *)MEM_callocN(sizeof(EvaluationContext),
"EvaluationContext");
eval_ctx->mode = mode;
return eval_ctx;
}
/**
* Initialize evaluation context.
* Used by the areas which currently overrides the context or doesn't have
* access to a proper one.
*/
void DEG_evaluation_context_init(EvaluationContext *eval_ctx, int mode)
{
eval_ctx->mode = mode;
}
/* Free evaluation context. */
void DEG_evaluation_context_free(EvaluationContext *eval_ctx)
{
MEM_freeN(eval_ctx);
}
/* Evaluate all nodes tagged for updating. */
void DEG_evaluate_on_refresh(EvaluationContext *eval_ctx,
Depsgraph *graph,
Scene *scene)
{
DEG::Depsgraph *deg_graph = reinterpret_cast<DEG::Depsgraph *>(graph);
/* Update time on primary timesource. */
DEG::TimeSourceDepsNode *tsrc = deg_graph->find_time_source();
tsrc->cfra = BKE_scene_frame_get(scene);
unsigned int layers = deg_graph->layers;
/* XXX(sergey): This works around missing updates in temp scenes used
* by various scripts, but is weak and needs closer investigation.
*/
if (layers == 0) {
layers = scene->lay;
}
DEG::deg_evaluate_on_refresh(eval_ctx, deg_graph, layers);
}
/* Frame-change happened for root scene that graph belongs to. */
void DEG_evaluate_on_framechange(EvaluationContext *eval_ctx,
Main *bmain,
Depsgraph *graph,
float ctime,
const unsigned int layers)
{
DEG::Depsgraph *deg_graph = reinterpret_cast<DEG::Depsgraph *>(graph);
/* Update time on primary timesource. */
DEG::TimeSourceDepsNode *tsrc = deg_graph->find_time_source();
tsrc->cfra = ctime;
tsrc->tag_update(deg_graph);
DEG::deg_graph_flush_updates(bmain, deg_graph);
/* Perform recalculation updates. */
DEG::deg_evaluate_on_refresh(eval_ctx, deg_graph, layers);
}
bool DEG_needs_eval(Depsgraph *graph)
{
DEG::Depsgraph *deg_graph = reinterpret_cast<DEG::Depsgraph *>(graph);
return BLI_gset_size(deg_graph->entry_tags) != 0;
}
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