Jacques Lucke
4f4af0cbe1
This still cannot be controlled by the user. Currently, all particles are killed after two seconds
101 lines
2.5 KiB
C++
101 lines
2.5 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __SIM_PARTICLE_ALLOCATOR_HH__
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#define __SIM_PARTICLE_ALLOCATOR_HH__
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#include "BLI_array.hh"
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#include "BLI_vector.hh"
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#include "FN_attributes_ref.hh"
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#include <atomic>
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#include <mutex>
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namespace blender::sim {
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class AttributesAllocator : NonCopyable, NonMovable {
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private:
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struct AttributesBlock {
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Array<void *> buffers;
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int size;
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};
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const fn::AttributesInfo &attributes_info_;
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Vector<std::unique_ptr<AttributesBlock>> allocated_blocks_;
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Vector<fn::MutableAttributesRef> allocated_attributes_;
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int total_allocated_ = 0;
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std::mutex mutex_;
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public:
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AttributesAllocator(const fn::AttributesInfo &attributes_info)
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: attributes_info_(attributes_info)
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{
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}
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~AttributesAllocator();
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Span<fn::MutableAttributesRef> get_allocations() const
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{
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return allocated_attributes_;
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}
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int total_allocated() const
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{
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return total_allocated_;
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}
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const fn::AttributesInfo &attributes_info() const
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{
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return attributes_info_;
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}
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fn::MutableAttributesRef allocate_uninitialized(int size);
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};
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class ParticleAllocator : NonCopyable, NonMovable {
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private:
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AttributesAllocator attributes_allocator_;
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std::atomic<int> next_id_;
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public:
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ParticleAllocator(const fn::AttributesInfo &attributes_info, int next_id)
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: attributes_allocator_(attributes_info), next_id_(next_id)
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{
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}
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const fn::AttributesInfo &attributes_info() const
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{
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return attributes_allocator_.attributes_info();
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}
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Span<fn::MutableAttributesRef> get_allocations() const
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{
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return attributes_allocator_.get_allocations();
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}
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int total_allocated() const
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{
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return attributes_allocator_.total_allocated();
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}
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fn::MutableAttributesRef allocate(int size);
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};
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} // namespace blender::sim
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#endif /* __SIM_PARTICLE_ALLOCATOR_HH__ */
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