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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.
*/
#pragma once
#include "BLI_array.hh"
#include "BLI_vector.hh"
#include "FN_attributes_ref.hh"
#include <atomic>
#include <mutex>
namespace blender::sim {
class AttributesAllocator : NonCopyable, NonMovable {
private:
struct AttributesBlock {
Array<void *> buffers;
int size;
};
const fn::AttributesInfo &attributes_info_;
Vector<std::unique_ptr<AttributesBlock>> allocated_blocks_;
Vector<fn::MutableAttributesRef> allocated_attributes_;
int total_allocated_ = 0;
std::mutex mutex_;
public:
AttributesAllocator(const fn::AttributesInfo &attributes_info)
: attributes_info_(attributes_info)
{
}
~AttributesAllocator();
Span<fn::MutableAttributesRef> get_allocations() const
{
return allocated_attributes_;
}
int total_allocated() const
{
return total_allocated_;
}
const fn::AttributesInfo &attributes_info() const
{
return attributes_info_;
}
fn::MutableAttributesRef allocate_uninitialized(int size);
};
class ParticleAllocator : NonCopyable, NonMovable {
private:
AttributesAllocator attributes_allocator_;
std::atomic<int> next_id_;
uint32_t hash_seed_;
public:
ParticleAllocator(const fn::AttributesInfo &attributes_info, int next_id, uint32_t hash_seed)
: attributes_allocator_(attributes_info), next_id_(next_id), hash_seed_(hash_seed)
{
}
const fn::AttributesInfo &attributes_info() const
{
return attributes_allocator_.attributes_info();
}
Span<fn::MutableAttributesRef> get_allocations() const
{
return attributes_allocator_.get_allocations();
}
int total_allocated() const
{
return attributes_allocator_.total_allocated();
}
fn::MutableAttributesRef allocate(int size);
};
} // namespace blender::sim
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