1  namespace Ryujinx.Graphics.Gpu.Image
 2  {
 3      /// <summary>
 4      /// Multisampled texture samples count.
 5      /// </summary>
 6      enum TextureMsaaMode
 7      {
 8          Ms1x1 = 0,
 9          Ms2x2 = 2,
10          Ms4x2 = 4,
11          Ms2x1 = 5,
12          Ms4x4 = 6,
13      }
14  
15      static class TextureMsaaModeConverter
16      {
17          /// <summary>
18          /// Returns the total number of samples from the MSAA mode.
19          /// </summary>
20          /// <param name="msaaMode">The MSAA mode</param>
21          /// <returns>The total number of samples</returns>
22          public static int SamplesCount(this TextureMsaaMode msaaMode)
23          {
24              return msaaMode switch
25              {
26                  TextureMsaaMode.Ms2x1 => 2,
27                  TextureMsaaMode.Ms2x2 => 4,
28                  TextureMsaaMode.Ms4x2 => 8,
29                  TextureMsaaMode.Ms4x4 => 16,
30                  _ => 1,
31              };
32          }
33  
34          /// <summary>
35          /// Returns the number of samples in the X direction from the MSAA mode.
36          /// </summary>
37          /// <param name="msaaMode">The MSAA mode</param>
38          /// <returns>The number of samples in the X direction</returns>
39          public static int SamplesInX(this TextureMsaaMode msaaMode)
40          {
41              return msaaMode switch
42              {
43                  TextureMsaaMode.Ms2x1 => 2,
44                  TextureMsaaMode.Ms2x2 => 2,
45                  TextureMsaaMode.Ms4x2 => 4,
46                  TextureMsaaMode.Ms4x4 => 4,
47                  _ => 1,
48              };
49          }
50  
51          /// <summary>
52          /// Returns the number of samples in the Y direction from the MSAA mode.
53          /// </summary>
54          /// <param name="msaaMode">The MSAA mode</param>
55          /// <returns>The number of samples in the Y direction</returns>
56          public static int SamplesInY(this TextureMsaaMode msaaMode)
57          {
58              return msaaMode switch
59              {
60                  TextureMsaaMode.Ms2x1 => 1,
61                  TextureMsaaMode.Ms2x2 => 2,
62                  TextureMsaaMode.Ms4x2 => 2,
63                  TextureMsaaMode.Ms4x4 => 4,
64                  _ => 1,
65              };
66          }
67      }
68  }