66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later
|
|
* Copyright 2023 Blender Foundation. All rights reserved. */
|
|
|
|
/** \file
|
|
* \ingroup gpu
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#ifdef __APPLE__
|
|
# include <MoltenVK/vk_mvk_moltenvk.h>
|
|
#else
|
|
# include <vulkan/vulkan.h>
|
|
#endif
|
|
|
|
namespace blender::gpu {
|
|
|
|
/**
|
|
* `VK_ALLOCATION_CALLBACKS` initializes allocation callbacks for host allocations.
|
|
* The macro creates a local static variable with the name `vk_allocation_callbacks`
|
|
* that can be passed to VULKAN API functions that expect
|
|
* `const VkAllocationCallbacks *pAllocator`.
|
|
*
|
|
* When Blender is compiled with `WITH_VULKAN_GUARDEDALLOC` this will use
|
|
* `MEM_guardedalloc` for host allocations that the driver does on behalf
|
|
* of blender. More internal allocations are still being allocated via the
|
|
* implementation inside the VULKAN device driver.
|
|
*
|
|
* When `WITH_VULKAN_GUARDEDALLOC=Off` the memory allocation implemented
|
|
* in the vulkan device driver is used for both internal and application
|
|
* focused memory operations.
|
|
*/
|
|
|
|
#ifdef WITH_VULKAN_GUARDEDALLOC
|
|
void *vk_memory_allocation(void *user_data,
|
|
size_t size,
|
|
size_t alignment,
|
|
VkSystemAllocationScope scope);
|
|
void *vk_memory_reallocation(
|
|
void *user_data, void *original, size_t size, size_t alignment, VkSystemAllocationScope scope);
|
|
void vk_memory_free(void *user_data, void *memory);
|
|
|
|
constexpr VkAllocationCallbacks vk_allocation_callbacks_init(const char *name)
|
|
{
|
|
VkAllocationCallbacks callbacks = {};
|
|
callbacks.pUserData = const_cast<char *>(name);
|
|
callbacks.pfnAllocation = vk_memory_allocation;
|
|
callbacks.pfnReallocation = vk_memory_reallocation;
|
|
callbacks.pfnFree = vk_memory_free;
|
|
callbacks.pfnInternalAllocation = nullptr;
|
|
callbacks.pfnInternalFree = nullptr;
|
|
return callbacks;
|
|
}
|
|
|
|
# define VK_ALLOCATION_CALLBACKS \
|
|
static constexpr const VkAllocationCallbacks vk_allocation_callbacks_ = \
|
|
vk_allocation_callbacks_init(__func__); \
|
|
static constexpr const VkAllocationCallbacks *vk_allocation_callbacks = \
|
|
&vk_allocation_callbacks_;
|
|
#else
|
|
# define VK_ALLOCATION_CALLBACKS \
|
|
static constexpr const VkAllocationCallbacks *vk_allocation_callbacks = nullptr;
|
|
#endif
|
|
|
|
} // namespace blender::gpu
|