a12a8a71bb
The goal is to solve confusion of the "All rights reserved" for licensing
code under an open-source license.
The phrase "All rights reserved" comes from a historical convention that
required this phrase for the copyright protection to apply. This convention
is no longer relevant.
However, even though the phrase has no meaning in establishing the copyright
it has not lost meaning in terms of licensing.
This change makes it so code under the Blender Foundation copyright does
not use "all rights reserved". This is also how the GPL license itself
states how to apply it to the source code:
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software ...
This change does not change copyright notice in cases when the copyright
is dual (BF and an author), or just an author of the code. It also does
mot change copyright which is inherited from NaN Holding BV as it needs
some further investigation about what is the proper way to handle it.
66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2023 Blender Foundation */
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/** \file
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* \ingroup gpu
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*/
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#pragma once
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#include "BLI_vector.hh"
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#include "vk_descriptor_set.hh"
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namespace blender::gpu {
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/**
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* List of VkDescriptorPools.
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*
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* In Vulkan a pool is constructed with a fixed size per resource type. When more resources are
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* needed it a next pool should be created. VKDescriptorPools will keep track of those pools and
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* construct new pools when the previous one is exhausted.
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*
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* At the beginning of a new frame the descriptor pools are reset. This will start allocating
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* again from the first descriptor pool in order to use freed space from previous pools.
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*/
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class VKDescriptorPools {
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/**
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* Pool sizes to use. When one descriptor pool is requested to allocate a descriptor but isn't
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* able to do so, it will fail.
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*
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* Better defaults should be set later on, when we know more about our resource usage.
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*/
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static constexpr uint32_t POOL_SIZE_STORAGE_BUFFER = 1000;
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static constexpr uint32_t POOL_SIZE_DESCRIPTOR_SETS = 1000;
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static constexpr uint32_t POOL_SIZE_STORAGE_IMAGE = 1000;
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static constexpr uint32_t POOL_SIZE_COMBINED_IMAGE_SAMPLER = 1000;
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static constexpr uint32_t POOL_SIZE_UNIFORM_BUFFER = 1000;
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static constexpr uint32_t POOL_SIZE_UNIFORM_TEXEL_BUFFER = 1000;
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VkDevice vk_device_ = VK_NULL_HANDLE;
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Vector<VkDescriptorPool> pools_;
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int64_t active_pool_index_ = 0;
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public:
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VKDescriptorPools();
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~VKDescriptorPools();
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void init(const VkDevice vk_device);
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std::unique_ptr<VKDescriptorSet> allocate(const VkDescriptorSetLayout &descriptor_set_layout);
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void free(VKDescriptorSet &descriptor_set);
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/**
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* Reset the pools to start looking for free space from the first descriptor pool.
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*/
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void reset();
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private:
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VkDescriptorPool active_pool_get();
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void activate_next_pool();
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void activate_last_pool();
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bool is_last_pool_active();
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void add_new_pool();
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};
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} // namespace blender::gpu
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