mirror of
https://github.com/GreemDev/Ryujinx
synced 2024-11-22 17:56:59 +01:00
c95be55091
* vulkan: Move most of the properties enumeration to VulkanPhysicalDevice That clean up a bit of duplicate logic. Also move to use an hashset for device extensions. * vulkan: Move instance querying to VulkanInstance Also cleanup code to use span when possible instead of unsafe pointers. * Address gdkchan's comments
101 lines
3.4 KiB
C#
101 lines
3.4 KiB
C#
using Silk.NET.Vulkan;
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using System;
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using System.Collections.Generic;
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namespace Ryujinx.Graphics.Vulkan
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{
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class MemoryAllocator : IDisposable
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{
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private ulong MaxDeviceMemoryUsageEstimate = 16UL * 1024 * 1024 * 1024;
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private readonly Vk _api;
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private readonly VulkanPhysicalDevice _physicalDevice;
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private readonly Device _device;
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private readonly List<MemoryAllocatorBlockList> _blockLists;
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private readonly int _blockAlignment;
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public MemoryAllocator(Vk api, VulkanPhysicalDevice physicalDevice, Device device)
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{
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_api = api;
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_physicalDevice = physicalDevice;
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_device = device;
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_blockLists = new List<MemoryAllocatorBlockList>();
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_blockAlignment = (int)Math.Min(int.MaxValue, MaxDeviceMemoryUsageEstimate / (ulong)_physicalDevice.PhysicalDeviceProperties.Limits.MaxMemoryAllocationCount);
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}
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public MemoryAllocation AllocateDeviceMemory(
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MemoryRequirements requirements,
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MemoryPropertyFlags flags = 0,
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bool isBuffer = false)
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{
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int memoryTypeIndex = FindSuitableMemoryTypeIndex(requirements.MemoryTypeBits, flags);
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if (memoryTypeIndex < 0)
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{
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return default;
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}
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bool map = flags.HasFlag(MemoryPropertyFlags.HostVisibleBit);
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return Allocate(memoryTypeIndex, requirements.Size, requirements.Alignment, map, isBuffer);
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}
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private MemoryAllocation Allocate(int memoryTypeIndex, ulong size, ulong alignment, bool map, bool isBuffer)
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{
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for (int i = 0; i < _blockLists.Count; i++)
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{
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var bl = _blockLists[i];
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if (bl.MemoryTypeIndex == memoryTypeIndex && bl.ForBuffer == isBuffer)
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{
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lock (bl)
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{
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return bl.Allocate(size, alignment, map);
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}
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}
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}
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var newBl = new MemoryAllocatorBlockList(_api, _device, memoryTypeIndex, _blockAlignment, isBuffer);
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_blockLists.Add(newBl);
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return newBl.Allocate(size, alignment, map);
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}
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private int FindSuitableMemoryTypeIndex(
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uint memoryTypeBits,
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MemoryPropertyFlags flags)
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{
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for (int i = 0; i < _physicalDevice.PhysicalDeviceMemoryProperties.MemoryTypeCount; i++)
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{
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var type = _physicalDevice.PhysicalDeviceMemoryProperties.MemoryTypes[i];
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if ((memoryTypeBits & (1 << i)) != 0)
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{
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if (type.PropertyFlags.HasFlag(flags))
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{
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return i;
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}
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}
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}
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return -1;
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}
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public static bool IsDeviceMemoryShared(VulkanPhysicalDevice physicalDevice)
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{
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for (int i = 0; i < physicalDevice.PhysicalDeviceMemoryProperties.MemoryHeapCount; i++)
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{
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if (!physicalDevice.PhysicalDeviceMemoryProperties.MemoryHeaps[i].Flags.HasFlag(MemoryHeapFlags.DeviceLocalBit))
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{
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return false;
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}
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}
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return true;
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}
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public void Dispose()
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{
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for (int i = 0; i < _blockLists.Count; i++)
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{
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_blockLists[i].Dispose();
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}
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}
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}
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}
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