Ryujinx.Graphics/Texture/TextureHelper.cs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42

using ChocolArm64.Memory;
using Ryujinx.Graphics.Gal;
using Ryujinx.Graphics.Memory;

namespace Ryujinx.Graphics.Texture
{
    static class TextureHelper
    {
        public static ISwizzle GetSwizzle(GalImage Image)
        {
            int BlockWidth    = ImageUtils.GetBlockWidth   (Image.Format);
            int BytesPerPixel = ImageUtils.GetBytesPerPixel(Image.Format);

            int Width = (Image.Width + (BlockWidth - 1)) / BlockWidth;

            if (Image.Layout == GalMemoryLayout.BlockLinear)
            {
                int AlignMask = Image.TileWidth * (64 / BytesPerPixel) - 1;

                Width = (Width + AlignMask) & ~AlignMask;

                return new BlockLinearSwizzle(Width, BytesPerPixel, Image.GobBlockHeight);
            }
            else
            {
                return new LinearSwizzle(Image.Pitch, BytesPerPixel);
            }
        }

        public static (AMemory Memory, long Position) GetMemoryAndPosition(
            IAMemory Memory,
            long     Position)
        {
            if (Memory is NvGpuVmm Vmm)
            {
                return (Vmm.Memory, Vmm.GetPhysicalAddress(Position));
            }

            return ((AMemory)Memory, Position);
        }
    }
}