diff options
| author | TSR Berry <20988865+TSRBerry@users.noreply.github.com> | 2023-04-08 01:22:00 +0200 |
|---|---|---|
| committer | Mary <thog@protonmail.com> | 2023-04-27 23:51:14 +0200 |
| commit | cee712105850ac3385cd0091a923438167433f9f (patch) | |
| tree | 4a5274b21d8b7f938c0d0ce18736d3f2993b11b1 /src/Ryujinx.Graphics.Texture/Utils/Block.cs | |
| parent | cd124bda587ef09668a971fa1cac1c3f0cfc9f21 (diff) | |
Move solution and projects to src
Diffstat (limited to 'src/Ryujinx.Graphics.Texture/Utils/Block.cs')
| -rw-r--r-- | src/Ryujinx.Graphics.Texture/Utils/Block.cs | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/Ryujinx.Graphics.Texture/Utils/Block.cs b/src/Ryujinx.Graphics.Texture/Utils/Block.cs new file mode 100644 index 00000000..a8bae077 --- /dev/null +++ b/src/Ryujinx.Graphics.Texture/Utils/Block.cs @@ -0,0 +1,55 @@ +namespace Ryujinx.Graphics.Texture.Utils +{ + struct Block + { + public ulong Low; + public ulong High; + + public void Encode(ulong value, ref int offset, int bits) + { + if (offset >= 64) + { + High |= value << (offset - 64); + } + else + { + Low |= value << offset; + + if (offset + bits > 64) + { + int remainder = 64 - offset; + High |= value >> remainder; + } + } + + offset += bits; + } + + public ulong Decode(ref int offset, int bits) + { + ulong value; + ulong mask = bits == 64 ? ulong.MaxValue : (1UL << bits) - 1; + + if (offset >= 64) + { + value = (High >> (offset - 64)) & mask; + } + else + { + value = Low >> offset; + + if (offset + bits > 64) + { + int remainder = 64 - offset; + value |= High << remainder; + } + + value &= mask; + } + + offset += bits; + + return value; + } + } +}
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