AssetRipper/AssetRipper.TextureDecoder
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Remove some unnecessary variable assignments

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Jeremy Pritts committed 2023-06-29 22:28:59 -04:00
1 parent 862995196f
commit 58b113e1e0
1 file changed
+12 -18
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AssetRipper.TextureDecoder/Bc/BcHelpers.cs
+12 -18
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@@ -65,8 +65,8 @@ internal unsafe static class BcHelpers
public static void DecompressBc6h_Half(ReadOnlySpan<byte> compressedBlock, Span<ushort> decompressedBlock, int destinationPitch, bool isSigned)
{
BitStream bstream = new();
Span<int> r = stackalloc int[4]; // wxyz
Span<int> g = stackalloc int[4];
Span<int> r = stackalloc int[4]; // wxyz
Span<int> g = stackalloc int[4];
Span<int> b = stackalloc int[4];
int decompressedOffset = 0;
@@ -85,7 +85,7 @@ internal unsafe static class BcHelpers
mode |= bstream.ReadBits(3) << 2;
}
int partition = default;
int partition;
switch (mode)
{
// mode 1
@@ -413,6 +413,7 @@ internal unsafe static class BcHelpers
r[1] |= bstream.ReadBits(10); // rx[9:0]
g[1] |= bstream.ReadBits(10); // gx[9:0]
b[1] |= bstream.ReadBits(10); // bx[9:0]
partition = 0;
mode = 10;
}
break;
@@ -432,6 +433,7 @@ internal unsafe static class BcHelpers
g[0] |= bstream.ReadBit() << 10; // gw[10]
b[1] |= bstream.ReadBits(9); // bx[8:0]
b[0] |= bstream.ReadBit() << 10; // bw[10]
partition = 0;
mode = 11;
}
break;
@@ -451,6 +453,7 @@ internal unsafe static class BcHelpers
g[0] |= bstream.ReadBitsReversed(2) << 10; // gx[10:11]
b[1] |= bstream.ReadBits(8); // bx[7:0]
b[0] |= bstream.ReadBitsReversed(2) << 10; // bx[10:11]
partition = 0;
mode = 12;
}
break;
@@ -470,6 +473,7 @@ internal unsafe static class BcHelpers
g[0] |= bstream.ReadBitsReversed(6) << 10; // gw[10:15]
b[1] |= bstream.ReadBits(4); // bx[3:0]
b[0] |= bstream.ReadBitsReversed(6) << 10; // bw[10:15]
partition = 0;
mode = 13;
}
break;
@@ -495,17 +499,7 @@ internal unsafe static class BcHelpers
}
}
int numPartitions;
if (mode >= 10)
{
partition = 0;
numPartitions = 0;
}
else
{
numPartitions = 1;
}
int numPartitions = mode >= 10 ? 0 : 1;
if (isSigned)
{
r[0] = ExtendSign(r[0], Bc6hTables.ActualBitsCount[0][mode]);
@@ -533,7 +527,7 @@ internal unsafe static class BcHelpers
g[i] = TransformInverse(g[i], g[0], Bc6hTables.ActualBitsCount[0][mode], isSigned);
b[i] = TransformInverse(b[i], b[0], Bc6hTables.ActualBitsCount[0][mode], isSigned);
}
}
}
for (int i = 0; i < 4; ++i)
{
@@ -550,9 +544,9 @@ internal unsafe static class BcHelpers
}
partitionSet &= 0x01;
int index = bstream.ReadBits(indexBits);
// endpoints A and B
int index = bstream.ReadBits(indexBits);
// endpoints A and B
int epR0 = Unquantize(r[(partitionSet * 2) + 0], Bc6hTables.ActualBitsCount[0][mode], isSigned);
int epG0 = Unquantize(g[(partitionSet * 2) + 0], Bc6hTables.ActualBitsCount[0][mode], isSigned);
int epB0 = Unquantize(b[(partitionSet * 2) + 0], Bc6hTables.ActualBitsCount[0][mode], isSigned);