Differential D8423 Diff 27382 source/blender/depsgraph/intern/builder/pipeline.cc

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source/blender/depsgraph/intern/builder/pipeline.cc

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				/*
				* 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) 2020 Blender Foundation.
				* All rights reserved.
				*/

				#include "pipeline.h"

				#include "PIL_time.h"

				#include "BKE_global.h"

				#include "DNA_scene_types.h"

				#include "deg_builder_cycle.h"
				#include "deg_builder_nodes.h"
				#include "deg_builder_relations.h"
				#include "deg_builder_transitive.h"

				namespace blender {
				namespace deg {

				AbstractBuilderPipeline::AbstractBuilderPipeline(::Depsgraph *graph,
				Main *bmain,
				Scene *scene,
				ViewLayer *view_layer)
				: deg_graph_(reinterpret_cast<Depsgraph *>(graph)),
				bmain_(bmain),
				scene_(scene),
				view_layer_(view_layer),
				builder_cache_()
				{
				}

				AbstractBuilderPipeline::~AbstractBuilderPipeline()
				{
				}

				void AbstractBuilderPipeline::build()
				{
				double start_time = 0.0;
				if (G.debug & (G_DEBUG_DEPSGRAPH_BUILD \| G_DEBUG_DEPSGRAPH_TIME)) {
				start_time = PIL_check_seconds_timer();
				}

				build_step_sanity_check();
				build_step_nodes();
				build_step_relations();
				build_step_finalize();

				if (G.debug & (G_DEBUG_DEPSGRAPH_BUILD \| G_DEBUG_DEPSGRAPH_TIME)) {
				printf("Depsgraph built in %f seconds.\n", PIL_check_seconds_timer() - start_time);
				}
				}

				void AbstractBuilderPipeline::build_step_sanity_check()
				{
				BLI_assert(BLI_findindex(&scene_->view_layers, view_layer_) != -1);
				BLI_assert(deg_graph_->scene == scene_);
				BLI_assert(deg_graph_->view_layer == view_layer_);
				}

				void AbstractBuilderPipeline::build_step_nodes()
				{
				/* Generate all the nodes in the graph first */
				unique_ptr<DepsgraphNodeBuilder> node_builder = construct_node_builder();
				node_builder->begin_build();
				build_nodes(*node_builder);
				node_builder->end_build();
				}

				void AbstractBuilderPipeline::build_step_relations()
				{
				/* Hook up relationships between operations - to determine evaluation order. */
				unique_ptr<DepsgraphRelationBuilder> relation_builder = construct_relation_builder();
				relation_builder->begin_build();
				build_relations(*relation_builder);
				relation_builder->build_copy_on_write_relations();
				relation_builder->build_driver_relations();
				}

				void AbstractBuilderPipeline::build_step_finalize()
				{
				/* Detect and solve cycles. */
				deg_graph_detect_cycles(deg_graph_);
				/* Simplify the graph by removing redundant relations (to optimize
				* traversal later). */
				/* TODO: it would be useful to have an option to disable this in cases where
				* it is causing trouble. */
				if (G.debug_value == 799) {
				deg_graph_transitive_reduction(deg_graph_);
				}
				/* Store pointers to commonly used valuated datablocks. */
				deg_graph_->scene_cow = (Scene *)deg_graph_->get_cow_id(&deg_graph_->scene->id);
				/* Flush visibility layer and re-schedule nodes for update. */
				deg_graph_build_finalize(bmain_, deg_graph_);
				DEG_graph_on_visible_update(bmain_, reinterpret_cast<::Depsgraph *>(deg_graph_), false);
				#if 0
				if (!DEG_debug_consistency_check(deg_graph_)) {
				printf("Consistency validation failed, ABORTING!\n");
				abort();
				}
				#endif
				/* Relations are up to date. */
				deg_graph_->need_update = false;
				}

				unique_ptr<DepsgraphNodeBuilder> AbstractBuilderPipeline::construct_node_builder()
				{
				return std::make_unique<DepsgraphNodeBuilder>(bmain_, deg_graph_, &builder_cache_);
				}

				unique_ptr<DepsgraphRelationBuilder> AbstractBuilderPipeline::construct_relation_builder()
				{
				return std::make_unique<DepsgraphRelationBuilder>(bmain_, deg_graph_, &builder_cache_);
				}

				} // namespace deg
				} // namespace blender