mirror of
https://github.com/Ryujinx/Ryujinx.git
synced 2024-08-17 14:18:44 +02:00
* Initial NVDEC and VIC implementation * Update FFmpeg.AutoGen to 4.3.0 * Add nvdec dependencies for Windows * Unify some VP9 structures * Rename VP9 structure fields * Improvements to Video API * XML docs for Common.Memory * Remove now unused or redundant overloads from MemoryAccessor * NVDEC UV surface read/write scalar paths * Add FIXME comments about hacky things/stuff that will need to be fixed in the future * Cleaned up VP9 memory allocation * Remove some debug logs * Rename some VP9 structs * Remove unused struct * No need to compile Ryujinx.Graphics.Host1x with unsafe anymore * Name AsyncWorkQueue threads to make debugging easier * Make Vp9PictureInfo a ref struct * LayoutConverter no longer needs the depth argument (broken by rebase) * Pooling of VP9 buffers, plus fix a memory leak on VP9 * Really wish VS could rename projects properly... * Address feedback * Remove using * Catch OperationCanceledException * Add licensing informations * Add THIRDPARTY.md to release too Co-authored-by: Thog <me@thog.eu>
94 lines
2.5 KiB
C#
94 lines
2.5 KiB
C#
using Ryujinx.Common.Memory;
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using System;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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namespace Ryujinx.Graphics.Nvdec.Vp9.Common
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{
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internal class MemoryAllocator : IDisposable
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{
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private const int PoolEntries = 10;
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private struct PoolItem
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{
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public IntPtr Pointer;
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public int Length;
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public bool InUse;
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}
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private PoolItem[] _pool = new PoolItem[PoolEntries];
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public ArrayPtr<T> Allocate<T>(int length) where T : unmanaged
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{
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int lengthInBytes = Unsafe.SizeOf<T>() * length;
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IntPtr ptr = IntPtr.Zero;
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for (int i = 0; i < PoolEntries; i++)
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{
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ref PoolItem item = ref _pool[i];
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if (!item.InUse && item.Length == lengthInBytes)
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{
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item.InUse = true;
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ptr = item.Pointer;
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break;
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}
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}
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if (ptr == IntPtr.Zero)
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{
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ptr = Marshal.AllocHGlobal(lengthInBytes);
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for (int i = 0; i < PoolEntries; i++)
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{
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ref PoolItem item = ref _pool[i];
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if (!item.InUse)
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{
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item.InUse = true;
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if (item.Pointer != IntPtr.Zero)
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{
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Marshal.FreeHGlobal(item.Pointer);
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}
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item.Pointer = ptr;
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item.Length = lengthInBytes;
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break;
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}
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}
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}
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return new ArrayPtr<T>(ptr, length);
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}
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public unsafe void Free<T>(ArrayPtr<T> arr) where T : unmanaged
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{
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IntPtr ptr = (IntPtr)arr.ToPointer();
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for (int i = 0; i < PoolEntries; i++)
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{
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ref PoolItem item = ref _pool[i];
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if (item.Pointer == ptr)
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{
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item.InUse = false;
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break;
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}
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}
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}
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public void Dispose()
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{
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for (int i = 0; i < PoolEntries; i++)
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{
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ref PoolItem item = ref _pool[i];
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if (item.Pointer != IntPtr.Zero)
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{
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Marshal.FreeHGlobal(item.Pointer);
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item.Pointer = IntPtr.Zero;
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}
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}
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}
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}
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} |