mirror of
https://github.com/MobileGL-Dev/MobileGL
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57 lines
1.9 KiB
C++
57 lines
1.9 KiB
C++
// MobileGL - MobileGL/MG_Backend/DirectVulkan/Renderer/BufferArena.h
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// Copyright (c) 2025-2026 MobileGL-Dev
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// Licensed under the GNU Lesser General Public License v3.0:
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// https://www.gnu.org/licenses/gpl-3.0.txt
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// https://www.gnu.org/licenses/lgpl-3.0.txt
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// SPDX-License-Identifier: LGPL-3.0-only
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// End of Source File Header
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#pragma once
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#include "BufferSlice.h"
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#include "VkBufferObject.h"
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#include "../VkIncludes.h"
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#include <Includes.h>
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#include <vk_mem_alloc.h>
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namespace MobileGL::MG_Backend::DirectVulkan {
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struct BufferArenaDesc {
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VmaAllocator allocator = nullptr;
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Uint32 frameCount = 0;
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VkBufferUsageFlags usage = 0;
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VmaMemoryUsage memoryUsage = VMA_MEMORY_USAGE_AUTO;
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VmaAllocationCreateFlags allocationFlags = 0;
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VkDeviceSize minBufferSize = 0;
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Bool persistentlyMapped = false;
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};
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class BufferArena {
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public:
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Bool Initialize(const BufferArenaDesc& desc);
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void Shutdown();
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void BeginFrame(Uint32 frameIndex);
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void ResetFrame(Uint32 frameIndex);
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void CollectDeferredReleases(Uint32 frameIndex);
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Bool Allocate(Uint32 frameIndex, VkDeviceSize size, VkDeviceSize alignment, BufferSlice& outSlice);
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Bool Upload(Uint32 frameIndex, const void* data, VkDeviceSize size, VkDeviceSize alignment, BufferSlice& outSlice);
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VkDeviceSize GetWriteCursor(Uint32 frameIndex) const;
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Uint32 GetFrameCount() const;
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private:
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struct FrameResources {
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VkBufferObject buffer;
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VkDeviceSize writeCursor = 0;
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};
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Bool EnsureCapacity(Uint32 frameIndex, VkDeviceSize requiredEndOffset);
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void AssertValidFrameIndex(Uint32 frameIndex) const;
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BufferArenaDesc m_desc{};
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Vector<FrameResources> m_frames;
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Vector<Vector<VkBufferObject>> m_deferredReleases;
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};
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} // namespace MobileGL::MG_Backend::DirectVulkan
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