Jacques Lucke
a09accb496
Whenever a node group is entered during evaluation, a new compute context is entered which has a corresponding hash. When node groups are entered and exited a lot, this can have some overhead. In my test file with ~100.000 node group invocations, this patch improves performance by about 7%. The speedup is achieved in two ways: * Avoid computing the same hash twice by caching it. * Invoke the hashing algorithm (md5 currently) only once instead of twice.
61 lines
1.5 KiB
C++
61 lines
1.5 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/**
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* This file implements some specific compute contexts for concepts in Blender.
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*/
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#include <optional>
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#include "BLI_compute_context.hh"
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struct bNode;
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namespace blender::bke {
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class ModifierComputeContext : public ComputeContext {
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private:
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static constexpr const char *s_static_type = "MODIFIER";
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/**
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* Use modifier name instead of something like `session_uuid` for now because:
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* - It's more obvious that the name matches between the original and evaluated object.
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* - We might want that the context hash is consistent between sessions in the future.
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*/
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std::string modifier_name_;
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public:
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ModifierComputeContext(const ComputeContext *parent, std::string modifier_name);
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private:
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void print_current_in_line(std::ostream &stream) const override;
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};
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class NodeGroupComputeContext : public ComputeContext {
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private:
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static constexpr const char *s_static_type = "NODE_GROUP";
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int32_t node_id_;
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#ifdef DEBUG
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std::string debug_node_name_;
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#endif
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public:
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NodeGroupComputeContext(const ComputeContext *parent,
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int32_t node_id,
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const std::optional<ComputeContextHash> &cached_hash = {});
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NodeGroupComputeContext(const ComputeContext *parent, const bNode &node);
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int32_t node_id() const
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{
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return node_id_;
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}
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private:
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void print_current_in_line(std::ostream &stream) const override;
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};
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} // namespace blender::bke
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