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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
{
private const int MaxPoolSizesPerSet = 8;
private readonly VulkanRenderer _gd;
private readonly Device _device;
public DescriptorSetLayout[] DescriptorSetLayouts { get; }
public PipelineLayout PipelineLayout { get; }
private readonly int[] _consumedDescriptorsPerSet;
private readonly DescriptorPoolSize[][] _poolSizes;
private readonly DescriptorSetManager _descriptorSetManager;
private readonly List<Auto<DescriptorSetCollection>>[][] _dsCache;
private List<Auto<DescriptorSetCollection>>[] _currentDsCache;
private readonly int[] _dsCacheCursor;
private int _dsLastCbIndex;
private int _dsLastSubmissionCount;
private readonly Dictionary<long, DescriptorSetTemplate> _pdTemplates;
private readonly ResourceDescriptorCollection _pdDescriptors;
private long _lastPdUsage;
private DescriptorSetTemplate _lastPdTemplate;
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];
_poolSizes = new DescriptorPoolSize[setDescriptors.Count][];
Span<DescriptorPoolSize> poolSizes = stackalloc DescriptorPoolSize[MaxPoolSizesPerSet];
for (int setIndex = 0; setIndex < setDescriptors.Count; setIndex++)
{
int count = 0;
foreach (var descriptor in setDescriptors[setIndex].Descriptors)
{
count += descriptor.Count;
}
_consumedDescriptorsPerSet[setIndex] = count;
_poolSizes[setIndex] = GetDescriptorPoolSizes(poolSizes, setDescriptors[setIndex], DescriptorSetManager.MaxSets).ToArray();
}
if (usePushDescriptors)
{
_pdDescriptors = setDescriptors[0];
_pdTemplates = new();
}
_descriptorSetManager = new DescriptorSetManager(_device, setDescriptors.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)
{
var dsc = _descriptorSetManager.AllocateDescriptorSet(
_gd.Api,
DescriptorSetLayouts[setIndex],
_poolSizes[setIndex],
setIndex,
_consumedDescriptorsPerSet[setIndex],
false);
list.Add(dsc);
isNew = true;
return dsc;
}
isNew = false;
return list[index];
}
private static Span<DescriptorPoolSize> GetDescriptorPoolSizes(Span<DescriptorPoolSize> output, ResourceDescriptorCollection setDescriptor, uint multiplier)
{
int count = 0;
for (int index = 0; index < setDescriptor.Descriptors.Count; index++)
{
ResourceDescriptor descriptor = setDescriptor.Descriptors[index];
DescriptorType descriptorType = descriptor.Type.Convert();
bool found = false;
for (int poolSizeIndex = 0; poolSizeIndex < count; poolSizeIndex++)
{
if (output[poolSizeIndex].Type == descriptorType)
{
output[poolSizeIndex].DescriptorCount += (uint)descriptor.Count * multiplier;
found = true;
break;
}
}
if (!found)
{
output[count++] = new DescriptorPoolSize()
{
Type = descriptorType,
DescriptorCount = (uint)descriptor.Count,
};
}
}
return output[..count];
}
public DescriptorSetTemplate GetPushDescriptorTemplate(PipelineBindPoint pbp, long updateMask)
{
if (_lastPdUsage == updateMask && _lastPdTemplate != null)
{
// Most likely result is that it asks to update the same buffers.
return _lastPdTemplate;
}
if (!_pdTemplates.TryGetValue(updateMask, out DescriptorSetTemplate template))
{
template = new DescriptorSetTemplate(_gd, _device, _pdDescriptors, updateMask, this, pbp, 0);
_pdTemplates.Add(updateMask, template);
}
_lastPdUsage = updateMask;
_lastPdTemplate = template;
return template;
}
protected virtual unsafe void Dispose(bool disposing)
{
if (disposing)
{
if (_pdTemplates != null)
{
foreach (DescriptorSetTemplate template in _pdTemplates.Values)
{
template.Dispose();
}
}
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);
}
_descriptorSetManager.Dispose();
}
}
public void Dispose()
{
Dispose(true);
}
}
}
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