diff options
| author | gdkchan <gab.dark.100@gmail.com> | 2022-07-27 21:07:48 -0300 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2022-07-27 21:07:48 -0300 |
| commit | 3c3bcd82fe6dfa8bdc2c9a9f33724ebfacd7dd40 (patch) | |
| tree | 1945094df81c8de1dd540508a6d59d82b5a18d39 /Ryujinx.Graphics.Gpu/Image/PoolCache.cs | |
| parent | a00c59a46c372ad004cb5b6c9aca97e6f5e9e910 (diff) | |
Add a sampler pool cache and improve texture pool cache (#3487)1.1.194
* Add a sampler pool cache and improve texture pool cache
* Increase disposal timestamp delta more to be on the safe side
* Nits
* Use abstract class for PoolCache, remove factory callback
Diffstat (limited to 'Ryujinx.Graphics.Gpu/Image/PoolCache.cs')
| -rw-r--r-- | Ryujinx.Graphics.Gpu/Image/PoolCache.cs | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/Ryujinx.Graphics.Gpu/Image/PoolCache.cs b/Ryujinx.Graphics.Gpu/Image/PoolCache.cs new file mode 100644 index 00000000..e1493f38 --- /dev/null +++ b/Ryujinx.Graphics.Gpu/Image/PoolCache.cs @@ -0,0 +1,129 @@ +using System; +using System.Collections.Generic; + +namespace Ryujinx.Graphics.Gpu.Image +{ + /// <summary> + /// Resource pool interface. + /// </summary> + /// <typeparam name="T">Resource pool type</typeparam> + interface IPool<T> + { + /// <summary> + /// Start address of the pool in memory. + /// </summary> + ulong Address { get; } + + /// <summary> + /// Linked list node used on the texture pool cache. + /// </summary> + LinkedListNode<T> CacheNode { get; set; } + + /// <summary> + /// Timestamp set on the last use of the pool by the cache. + /// </summary> + ulong CacheTimestamp { get; set; } + } + + /// <summary> + /// Pool cache. + /// This can keep multiple pools, and return the current one as needed. + /// </summary> + abstract class PoolCache<T> : IDisposable where T : IPool<T>, IDisposable + { + private const int MaxCapacity = 2; + private const ulong MinDeltaForRemoval = 20000; + + private readonly GpuContext _context; + private readonly LinkedList<T> _pools; + private ulong _currentTimestamp; + + /// <summary> + /// Constructs a new instance of the pool. + /// </summary> + /// <param name="context">GPU context that the texture pool belongs to</param> + public PoolCache(GpuContext context) + { + _context = context; + _pools = new LinkedList<T>(); + } + + /// <summary> + /// Increments the internal timestamp of the cache that is used to decide when old resources will be deleted. + /// </summary> + public void Tick() + { + _currentTimestamp++; + } + + /// <summary> + /// Finds a cache texture pool, or creates a new one if not found. + /// </summary> + /// <param name="channel">GPU channel that the texture pool cache belongs to</param> + /// <param name="address">Start address of the texture pool</param> + /// <param name="maximumId">Maximum ID of the texture pool</param> + /// <returns>The found or newly created texture pool</returns> + public T FindOrCreate(GpuChannel channel, ulong address, int maximumId) + { + // Remove old entries from the cache, if possible. + while (_pools.Count > MaxCapacity && (_currentTimestamp - _pools.First.Value.CacheTimestamp) >= MinDeltaForRemoval) + { + T oldestPool = _pools.First.Value; + + _pools.RemoveFirst(); + oldestPool.Dispose(); + oldestPool.CacheNode = null; + } + + T pool; + + // Try to find the pool on the cache. + for (LinkedListNode<T> node = _pools.First; node != null; node = node.Next) + { + pool = node.Value; + + if (pool.Address == address) + { + if (pool.CacheNode != _pools.Last) + { + _pools.Remove(pool.CacheNode); + + pool.CacheNode = _pools.AddLast(pool); + } + + pool.CacheTimestamp = _currentTimestamp; + + return pool; + } + } + + // If not found, create a new one. + pool = CreatePool(_context, channel, address, maximumId); + + pool.CacheNode = _pools.AddLast(pool); + pool.CacheTimestamp = _currentTimestamp; + + return pool; + } + + /// <summary> + /// Creates a new instance of the pool. + /// </summary> + /// <param name="context">GPU context that the pool belongs to</param> + /// <param name="channel">GPU channel that the pool belongs to</param> + /// <param name="address">Address of the pool in guest memory</param> + /// <param name="maximumId">Maximum ID of the pool (equal to maximum minus one)</param> + protected abstract T CreatePool(GpuContext context, GpuChannel channel, ulong address, int maximumId); + + public void Dispose() + { + foreach (T pool in _pools) + { + pool.Dispose(); + pool.CacheNode = null; + } + + _pools.Clear(); + } + } +}
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