79 lines
2.3 KiB
C#
79 lines
2.3 KiB
C#
using Ryujinx.Common.Memory;
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using Ryujinx.Graphics.Nvdec.Vp9.Common;
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using Ryujinx.Graphics.Nvdec.Vp9.Types;
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namespace Ryujinx.Graphics.Nvdec.Vp9
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{
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internal struct InternalFrameBuffer
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{
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public ArrayPtr<byte> Data;
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public bool InUse;
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}
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internal struct InternalFrameBufferList
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{
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public ArrayPtr<InternalFrameBuffer> IntFb;
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}
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internal static class FrameBuffers
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{
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public static int GetFrameBuffer(MemoryAllocator allocator, Ptr<InternalFrameBufferList> cbPriv, ulong minSize,
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ref VpxCodecFrameBuffer fb)
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{
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int i;
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Ptr<InternalFrameBufferList> intFbList = cbPriv;
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if (intFbList.IsNull)
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{
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return -1;
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}
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// Find a free frame buffer.
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for (i = 0; i < intFbList.Value.IntFb.Length; ++i)
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{
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if (!intFbList.Value.IntFb[i].InUse)
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{
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break;
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}
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}
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if (i == intFbList.Value.IntFb.Length)
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{
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return -1;
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}
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if ((ulong)intFbList.Value.IntFb[i].Data.Length < minSize)
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{
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if (!intFbList.Value.IntFb[i].Data.IsNull)
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{
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allocator.Free(intFbList.Value.IntFb[i].Data);
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}
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// The data must be zeroed to fix a valgrind error from the C loop filter
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// due to access uninitialized memory in frame border. It could be
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// skipped if border were totally removed.
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intFbList.Value.IntFb[i].Data = allocator.Allocate<byte>((int)minSize);
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if (intFbList.Value.IntFb[i].Data.IsNull)
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{
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return -1;
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}
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}
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fb.Data = intFbList.Value.IntFb[i].Data;
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intFbList.Value.IntFb[i].InUse = true;
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// Set the frame buffer's private data to point at the internal frame buffer.
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fb.Priv = new Ptr<InternalFrameBuffer>(ref intFbList.Value.IntFb[i]);
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return 0;
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}
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public static int ReleaseFrameBuffer(Ptr<InternalFrameBufferList> cbPriv, ref VpxCodecFrameBuffer fb)
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{
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if (!fb.Priv.IsNull)
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{
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fb.Priv.Value.InUse = false;
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}
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return 0;
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}
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}
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} |