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.
62 lines
2.1 KiB
C++
62 lines
2.1 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 "vk_common.hh"
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namespace blender::gpu {
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/**
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* `VK_ALLOCATION_CALLBACKS` initializes allocation callbacks for host allocations.
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* The macro creates a local static variable with the name `vk_allocation_callbacks`
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* that can be passed to VULKAN API functions that expect
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* `const VkAllocationCallbacks *pAllocator`.
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*
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* When Blender is compiled with `WITH_VULKAN_GUARDEDALLOC` this will use
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* `MEM_guardedalloc` for host allocations that the driver does on behalf
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* of blender. More internal allocations are still being allocated via the
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* implementation inside the VULKAN device driver.
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*
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* When `WITH_VULKAN_GUARDEDALLOC=Off` the memory allocation implemented
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* in the vulkan device driver is used for both internal and application
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* focused memory operations.
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*/
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#ifdef WITH_VULKAN_GUARDEDALLOC
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void *vk_memory_allocation(void *user_data,
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size_t size,
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size_t alignment,
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VkSystemAllocationScope scope);
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void *vk_memory_reallocation(
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void *user_data, void *original, size_t size, size_t alignment, VkSystemAllocationScope scope);
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void vk_memory_free(void *user_data, void *memory);
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constexpr VkAllocationCallbacks vk_allocation_callbacks_init(const char *name)
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{
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VkAllocationCallbacks callbacks = {};
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callbacks.pUserData = const_cast<char *>(name);
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callbacks.pfnAllocation = vk_memory_allocation;
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callbacks.pfnReallocation = vk_memory_reallocation;
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callbacks.pfnFree = vk_memory_free;
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callbacks.pfnInternalAllocation = nullptr;
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callbacks.pfnInternalFree = nullptr;
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return callbacks;
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}
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# define VK_ALLOCATION_CALLBACKS \
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static constexpr const VkAllocationCallbacks vk_allocation_callbacks_ = \
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vk_allocation_callbacks_init(__func__); \
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static constexpr const VkAllocationCallbacks *vk_allocation_callbacks = \
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&vk_allocation_callbacks_;
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#else
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# define VK_ALLOCATION_CALLBACKS \
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static constexpr const VkAllocationCallbacks *vk_allocation_callbacks = nullptr;
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#endif
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} // namespace blender::gpu
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