Files
test2/source/blender/functions/intern/lazy_function.cc
Jacques Lucke 6d9b9dd2c3 Refactor: Functions: extract user data to separate header
Previously, the `UserData` and `LocalUserData` classes were only supposed to be
used by the lazy-function system. However, they are generic enough so that they
can also be used by the multi-function system. Therefore, this patch extracts
them into a separate header that can be used in both evaluation systems.

I'm doing this in preparation for being able to pass the geometry nodes logger
to multi-functions, to be able to report errors from there.

Pull Request: https://projects.blender.org/blender/blender/pulls/138861
2025-05-14 10:54:28 +02:00

72 lines
1.5 KiB
C++

/* SPDX-FileCopyrightText: 2023 Blender Authors
*
* SPDX-License-Identifier: GPL-2.0-or-later */
/** \file
* \ingroup fn
*/
#include "FN_lazy_function.hh"
namespace blender::fn::lazy_function {
std::string LazyFunction::name() const
{
return debug_name_;
}
std::string LazyFunction::input_name(int index) const
{
return inputs_[index].debug_name;
}
std::string LazyFunction::output_name(int index) const
{
return outputs_[index].debug_name;
}
void *LazyFunction::init_storage(LinearAllocator<> & /*allocator*/) const
{
return nullptr;
}
void LazyFunction::destruct_storage(void *storage) const
{
BLI_assert(storage == nullptr);
UNUSED_VARS_NDEBUG(storage);
}
void LazyFunction::possible_output_dependencies(const int /*output_index*/,
const FunctionRef<void(Span<int>)> fn) const
{
/* The output depends on all inputs by default. */
Vector<int, 16> indices(inputs_.size());
for (const int i : inputs_.index_range()) {
indices[i] = i;
}
fn(indices);
}
bool LazyFunction::always_used_inputs_available(const Params &params) const
{
if (allow_missing_requested_inputs_) {
return true;
}
for (const int i : inputs_.index_range()) {
const Input &fn_input = inputs_[i];
if (fn_input.usage == ValueUsage::Used) {
if (params.try_get_input_data_ptr(i) == nullptr) {
return false;
}
}
}
return true;
}
bool Params::try_enable_multi_threading_impl()
{
return false;
}
} // namespace blender::fn::lazy_function