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Add Vulkan allocator class
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albin-johansson committed Aug 6, 2023
1 parent 76d7d21 commit f743c2e
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124 changes: 124 additions & 0 deletions src/private/vulkan-rhi/vk_allocator.cpp
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/*
* MIT License
*
* Copyright (c) 2023 Albin Johansson
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/

#include "glow/vulkan-rhi/vk_allocator.hpp"

#define VMA_IMPLEMENTATION
#include <vk_mem_alloc.h>

#include "glow/core/foundation/error.hpp"

namespace glow {
namespace {

struct VmaAllocatorDeleter final {
void operator()(VmaAllocator allocator) noexcept { vmaDestroyAllocator(allocator); }
};

using UniqueVmaAllocator = std::unique_ptr<VmaAllocator_T, VmaAllocatorDeleter>;

} // namespace

struct VulkanAllocator::Data final {
VkInstance instance {};
VkDevice device {};
VkPhysicalDevice gpu {};
UniqueVmaAllocator allocator;
};

VulkanAllocator::VulkanAllocator(VkInstance instance,
VkDevice device,
VkPhysicalDevice gpu)
: mData {std::make_unique<Data>()}
{
VmaAllocatorCreateInfo allocator_info = {};
allocator_info.physicalDevice = gpu;
allocator_info.device = device;
allocator_info.instance = instance;
allocator_info.vulkanApiVersion = VK_API_VERSION_1_2;

VmaAllocator allocator = VK_NULL_HANDLE;
const auto result = vmaCreateAllocator(&allocator_info, &allocator);

if (result != VK_SUCCESS) {
throw Error {"Could not create Vulkan allocator"};
}

mData->allocator.reset(allocator);
}

VulkanAllocator::~VulkanAllocator() noexcept = default;

auto VulkanAllocator::make_buffer(const VmaAllocationCreateInfo& allocation_info,
const VkBufferCreateInfo& buffer_info,
VmaAllocation* out_allocation,
VkBuffer* out_buffer) -> VkResult
{
return vmaCreateBuffer(mData->allocator.get(),
&buffer_info,
&allocation_info,
out_buffer,
out_allocation,
nullptr);
}

auto VulkanAllocator::make_image(const VmaAllocationCreateInfo& allocation_info,
const VkImageCreateInfo& image_info,
VmaAllocation* out_allocation,
VkImage* out_image) -> VkResult
{
return vmaCreateImage(mData->allocator.get(),
&image_info,
&allocation_info,
out_image,
out_allocation,
nullptr);
}

void VulkanAllocator::destroy_buffer(VmaAllocation allocation, VkBuffer buffer)
{
vmaDestroyBuffer(mData->allocator.get(), buffer, allocation);
}

void VulkanAllocator::destroy_image(VmaAllocation allocation, VkImage image)
{
vmaDestroyImage(mData->allocator.get(), image, allocation);
}

auto VulkanAllocator::get_instance() -> VkInstance
{
return mData->instance;
}

auto VulkanAllocator::get_device() -> VkDevice
{
return mData->device;
}

auto VulkanAllocator::get_gpu() -> VkPhysicalDevice
{
return mData->gpu;
}

} // namespace glow
70 changes: 70 additions & 0 deletions src/public/glow/vulkan-rhi/vk_allocator.hpp
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/*
* MIT License
*
* Copyright (c) 2023 Albin Johansson
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/

#pragma once

#include <memory> // unique_ptr

#include <vulkan/vulkan.h>

#include "glow/core/prelude.hpp"
#include "glow/vulkan-rhi/vk_rhi.hpp"

namespace glow {

class GLOW_VULKAN_API VulkanAllocator final {
public:
GLOW_CANNOT_COPY(VulkanAllocator);
GLOW_DEFAULT_MOVE(VulkanAllocator);

VulkanAllocator(VkInstance instance, VkDevice device, VkPhysicalDevice gpu);

~VulkanAllocator() noexcept;

[[nodiscard]] auto make_buffer(const VmaAllocationCreateInfo& allocation_info,
const VkBufferCreateInfo& buffer_info,
VmaAllocation* out_allocation,
VkBuffer* out_buffer) -> VkResult;

[[nodiscard]] auto make_image(const VmaAllocationCreateInfo& allocation_info,
const VkImageCreateInfo& image_info,
VmaAllocation* out_allocation,
VkImage* out_image) -> VkResult;

void destroy_buffer(VmaAllocation allocation, VkBuffer buffer);

void destroy_image(VmaAllocation allocation, VkImage image);

[[nodiscard]] auto get_instance() -> VkInstance;

[[nodiscard]] auto get_device() -> VkDevice;

[[nodiscard]] auto get_gpu() -> VkPhysicalDevice;

private:
struct Data;
std::unique_ptr<Data> mData;
};

} // namespace glow

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