1  using System;
 2  
 3  namespace Ryujinx.Graphics.Vic.Image
 4  {
 5      ref struct RentedBuffer
 6      {
 7          public static RentedBuffer Empty => new(Span<byte>.Empty, -1);
 8  
 9          public Span<byte> Data;
10          public int Index;
11  
12          public RentedBuffer(Span<byte> data, int index)
13          {
14              Data = data;
15              Index = index;
16          }
17  
18          public readonly void Return(BufferPool<byte> pool)
19          {
20              if (Index != -1)
21              {
22                  pool.Return(Index);
23              }
24          }
25      }
26  
27      ref struct InputSurface
28      {
29          public ReadOnlySpan<byte> Buffer0;
30          public ReadOnlySpan<byte> Buffer1;
31          public ReadOnlySpan<byte> Buffer2;
32  
33          public int Buffer0Index;
34          public int Buffer1Index;
35          public int Buffer2Index;
36  
37          public int Width;
38          public int Height;
39  
40          public int UvWidth;
41          public int UvHeight;
42  
43          public void Initialize()
44          {
45              Buffer0Index = -1;
46              Buffer1Index = -1;
47              Buffer2Index = -1;
48          }
49  
50          public void SetBuffer0(RentedBuffer buffer)
51          {
52              Buffer0 = buffer.Data;
53              Buffer0Index = buffer.Index;
54          }
55  
56          public void SetBuffer1(RentedBuffer buffer)
57          {
58              Buffer1 = buffer.Data;
59              Buffer1Index = buffer.Index;
60          }
61  
62          public void SetBuffer2(RentedBuffer buffer)
63          {
64              Buffer2 = buffer.Data;
65              Buffer2Index = buffer.Index;
66          }
67  
68          public readonly void Return(BufferPool<byte> pool)
69          {
70              if (Buffer0Index != -1)
71              {
72                  pool.Return(Buffer0Index);
73              }
74  
75              if (Buffer1Index != -1)
76              {
77                  pool.Return(Buffer1Index);
78              }
79  
80              if (Buffer2Index != -1)
81              {
82                  pool.Return(Buffer2Index);
83              }
84          }
85      }
86  }