tornavis/source/blender/blenkernel/BKE_compute_contexts.hh

127 lines
3.1 KiB
C++

/* SPDX-FileCopyrightText: 2023 Blender Authors
*
* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
/**
* This file implements some specific compute contexts for concepts in Blender.
*/
#include <optional>
#include "BLI_compute_context.hh"
struct bNode;
struct bNodeTree;
namespace blender::bke {
class ModifierComputeContext : public ComputeContext {
private:
static constexpr const char *s_static_type = "MODIFIER";
/**
* Use modifier name instead of something like `session_uuid` for now because:
* - It's more obvious that the name matches between the original and evaluated object.
* - We might want that the context hash is consistent between sessions in the future.
*/
std::string modifier_name_;
public:
ModifierComputeContext(const ComputeContext *parent, std::string modifier_name);
StringRefNull modifier_name() const
{
return modifier_name_;
}
private:
void print_current_in_line(std::ostream &stream) const override;
};
class GroupNodeComputeContext : public ComputeContext {
private:
static constexpr const char *s_static_type = "NODE_GROUP";
int32_t node_id_;
/**
* The caller node tree and group node are not always necessary or even available, but storing
* them here simplifies "walking up" the compute context to the parent node groups.
*/
const bNodeTree *caller_tree_ = nullptr;
const bNode *caller_group_node_ = nullptr;
public:
GroupNodeComputeContext(const ComputeContext *parent,
int32_t node_id,
const std::optional<ComputeContextHash> &cached_hash = {});
GroupNodeComputeContext(const ComputeContext *parent,
const bNode &node,
const bNodeTree &caller_tree);
int32_t node_id() const
{
return node_id_;
}
const bNode *caller_group_node() const
{
return caller_group_node_;
}
const bNodeTree *caller_tree() const
{
return caller_tree_;
}
private:
void print_current_in_line(std::ostream &stream) const override;
};
class SimulationZoneComputeContext : public ComputeContext {
private:
static constexpr const char *s_static_type = "SIMULATION_ZONE";
int32_t output_node_id_;
public:
SimulationZoneComputeContext(const ComputeContext *parent, int output_node_id);
SimulationZoneComputeContext(const ComputeContext *parent, const bNode &node);
int32_t output_node_id() const
{
return output_node_id_;
}
private:
void print_current_in_line(std::ostream &stream) const override;
};
class RepeatZoneComputeContext : public ComputeContext {
private:
static constexpr const char *s_static_type = "REPEAT_ZONE";
int32_t output_node_id_;
int iteration_;
public:
RepeatZoneComputeContext(const ComputeContext *parent, int32_t output_node_id, int iteration);
RepeatZoneComputeContext(const ComputeContext *parent, const bNode &node, int iteration);
int32_t output_node_id() const
{
return output_node_id_;
}
int iteration() const
{
return iteration_;
}
private:
void print_current_in_line(std::ostream &stream) const override;
};
} // namespace blender::bke