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using Ryujinx.Graphics.GAL;
using Silk.NET.Vulkan;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
namespace Ryujinx.Graphics.Vulkan
{
class PipelineLayoutCacheEntry
{
// Those were adjusted based on current descriptor usage and the descriptor counts usually used on pipeline layouts.
// It might be a good idea to tweak them again if those change, or maybe find a way to calculate an optimal value dynamically.
private const uint DefaultUniformBufferPoolCapacity = 19 * DescriptorSetManager.MaxSets;
private const uint DefaultStorageBufferPoolCapacity = 16 * DescriptorSetManager.MaxSets;
private const uint DefaultTexturePoolCapacity = 128 * DescriptorSetManager.MaxSets;
private const uint DefaultImagePoolCapacity = 8 * DescriptorSetManager.MaxSets;
private const int MaxPoolSizesPerSet = 2;
private readonly VulkanRenderer _gd;
private readonly Device _device;
public DescriptorSetLayout[] DescriptorSetLayouts { get; }
public PipelineLayout PipelineLayout { get; }
private readonly int[] _consumedDescriptorsPerSet;
private readonly List<Auto<DescriptorSetCollection>>[][] _dsCache;
private List<Auto<DescriptorSetCollection>>[] _currentDsCache;
private readonly int[] _dsCacheCursor;
private int _dsLastCbIndex;
private int _dsLastSubmissionCount;
private PipelineLayoutCacheEntry(VulkanRenderer gd, Device device, int setsCount)
{
_gd = gd;
_device = device;
_dsCache = new List<Auto<DescriptorSetCollection>>[CommandBufferPool.MaxCommandBuffers][];
for (int i = 0; i < CommandBufferPool.MaxCommandBuffers; i++)
{
_dsCache[i] = new List<Auto<DescriptorSetCollection>>[setsCount];
for (int j = 0; j < _dsCache[i].Length; j++)
{
_dsCache[i][j] = new List<Auto<DescriptorSetCollection>>();
}
}
_dsCacheCursor = new int[setsCount];
}
public PipelineLayoutCacheEntry(
VulkanRenderer gd,
Device device,
ReadOnlyCollection<ResourceDescriptorCollection> setDescriptors,
bool usePushDescriptors) : this(gd, device, setDescriptors.Count)
{
(DescriptorSetLayouts, PipelineLayout) = PipelineLayoutFactory.Create(gd, device, setDescriptors, usePushDescriptors);
_consumedDescriptorsPerSet = new int[setDescriptors.Count];
for (int setIndex = 0; setIndex < setDescriptors.Count; setIndex++)
{
int count = 0;
foreach (var descriptor in setDescriptors[setIndex].Descriptors)
{
count += descriptor.Count;
}
_consumedDescriptorsPerSet[setIndex] = count;
}
}
public void UpdateCommandBufferIndex(int commandBufferIndex)
{
int submissionCount = _gd.CommandBufferPool.GetSubmissionCount(commandBufferIndex);
if (_dsLastCbIndex != commandBufferIndex || _dsLastSubmissionCount != submissionCount)
{
_dsLastCbIndex = commandBufferIndex;
_dsLastSubmissionCount = submissionCount;
Array.Clear(_dsCacheCursor);
}
_currentDsCache = _dsCache[commandBufferIndex];
}
public Auto<DescriptorSetCollection> GetNewDescriptorSetCollection(int setIndex, out bool isNew)
{
var list = _currentDsCache[setIndex];
int index = _dsCacheCursor[setIndex]++;
if (index == list.Count)
{
Span<DescriptorPoolSize> poolSizes = stackalloc DescriptorPoolSize[MaxPoolSizesPerSet];
poolSizes = GetDescriptorPoolSizes(poolSizes, setIndex);
int consumedDescriptors = _consumedDescriptorsPerSet[setIndex];
var dsc = _gd.DescriptorSetManager.AllocateDescriptorSet(
_gd.Api,
DescriptorSetLayouts[setIndex],
poolSizes,
setIndex,
consumedDescriptors,
false);
list.Add(dsc);
isNew = true;
return dsc;
}
isNew = false;
return list[index];
}
private static Span<DescriptorPoolSize> GetDescriptorPoolSizes(Span<DescriptorPoolSize> output, int setIndex)
{
int count = 1;
switch (setIndex)
{
case PipelineBase.UniformSetIndex:
output[0] = new(DescriptorType.UniformBuffer, DefaultUniformBufferPoolCapacity);
break;
case PipelineBase.StorageSetIndex:
output[0] = new(DescriptorType.StorageBuffer, DefaultStorageBufferPoolCapacity);
break;
case PipelineBase.TextureSetIndex:
output[0] = new(DescriptorType.CombinedImageSampler, DefaultTexturePoolCapacity);
output[1] = new(DescriptorType.UniformTexelBuffer, DefaultTexturePoolCapacity);
count = 2;
break;
case PipelineBase.ImageSetIndex:
output[0] = new(DescriptorType.StorageImage, DefaultImagePoolCapacity);
output[1] = new(DescriptorType.StorageTexelBuffer, DefaultImagePoolCapacity);
count = 2;
break;
}
return output[..count];
}
protected virtual unsafe void Dispose(bool disposing)
{
if (disposing)
{
for (int i = 0; i < _dsCache.Length; i++)
{
for (int j = 0; j < _dsCache[i].Length; j++)
{
for (int k = 0; k < _dsCache[i][j].Count; k++)
{
_dsCache[i][j][k].Dispose();
}
_dsCache[i][j].Clear();
}
}
_gd.Api.DestroyPipelineLayout(_device, PipelineLayout, null);
for (int i = 0; i < DescriptorSetLayouts.Length; i++)
{
_gd.Api.DestroyDescriptorSetLayout(_device, DescriptorSetLayouts[i], null);
}
}
}
public void Dispose()
{
Dispose(true);
}
}
}
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