vk_memory.hh

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/* SPDX-FileCopyrightText: 2023 Blender Authors
 *
 * SPDX-License-Identifier: GPL-2.0-or-later */
 
#pragma once
 
#include "vk_common.hh"
 
namespace blender::gpu {
 
#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