diff options
Diffstat (limited to 'Ryujinx.Graphics.Vic/Image/BufferPool.cs')
| -rw-r--r-- | Ryujinx.Graphics.Vic/Image/BufferPool.cs | 103 |
1 files changed, 0 insertions, 103 deletions
diff --git a/Ryujinx.Graphics.Vic/Image/BufferPool.cs b/Ryujinx.Graphics.Vic/Image/BufferPool.cs deleted file mode 100644 index cde7e6eb..00000000 --- a/Ryujinx.Graphics.Vic/Image/BufferPool.cs +++ /dev/null @@ -1,103 +0,0 @@ -using System; - -namespace Ryujinx.Graphics.Vic.Image -{ - class BufferPool<T> - { - /// <summary> - /// Maximum number of buffers on the pool. - /// </summary> - private const int MaxBuffers = 4; - - /// <summary> - /// Maximum size of a buffer that can be added on the pool. - /// If the required buffer is larger than this, it won't be - /// added to the pool to avoid long term high memory usage. - /// </summary> - private const int MaxBufferSize = 2048 * 2048; - - private struct PoolItem - { - public bool InUse; - public T[] Buffer; - } - - private readonly PoolItem[] _pool = new PoolItem[MaxBuffers]; - - /// <summary> - /// Rents a buffer with the exact size requested. - /// </summary> - /// <param name="length">Size of the buffer</param> - /// <param name="buffer">Span of the requested size</param> - /// <returns>The index of the buffer on the pool</returns> - public int Rent(int length, out Span<T> buffer) - { - int index = RentMinimum(length, out T[] bufferArray); - - buffer = new Span<T>(bufferArray).Slice(0, length); - - return index; - } - - /// <summary> - /// Rents a buffer with a size greater than or equal to the requested size. - /// </summary> - /// <param name="length">Size of the buffer</param> - /// <param name="buffer">Array with a length greater than or equal to the requested length</param> - /// <returns>The index of the buffer on the pool</returns> - public int RentMinimum(int length, out T[] buffer) - { - if ((uint)length > MaxBufferSize) - { - buffer = new T[length]; - return -1; - } - - // Try to find a buffer that is larger or the same size of the requested one. - // This will avoid an allocation. - for (int i = 0; i < MaxBuffers; i++) - { - ref PoolItem item = ref _pool[i]; - - if (!item.InUse && item.Buffer != null && item.Buffer.Length >= length) - { - buffer = item.Buffer; - item.InUse = true; - return i; - } - } - - buffer = new T[length]; - - // Try to add the new buffer to the pool. - // We try to find a slot that is not in use, and replace the buffer in it. - for (int i = 0; i < MaxBuffers; i++) - { - ref PoolItem item = ref _pool[i]; - - if (!item.InUse) - { - item.Buffer = buffer; - item.InUse = true; - return i; - } - } - - return -1; - } - - /// <summary> - /// Returns a buffer returned from <see cref="Rent(int)"/> to the pool. - /// </summary> - /// <param name="index">Index of the buffer on the pool</param> - public void Return(int index) - { - if (index < 0) - { - return; - } - - _pool[index].InUse = false; - } - } -} |
