Move solution and projects to src

1 files changed, 0 insertions, 819 deletions

diff --git a/Ryujinx.Graphics.Texture/BC6Decoder.cs b/Ryujinx.Graphics.Texture/BC6Decoder.cs
deleted file mode 100644
index 819bf022..00000000
--- a/Ryujinx.Graphics.Texture/BC6Decoder.cs
+++ /dev/null
@@ -1,819 +0,0 @@
-using Ryujinx.Graphics.Texture.Utils;
-using System;
-using System.Runtime.InteropServices;
-
-namespace Ryujinx.Graphics.Texture
-{
-    static class BC6Decoder
-    {
-        private const int HalfOne = 0x3C00;
-
-        public static void Decode(Span<byte> output, ReadOnlySpan<byte> data, int width, int height, bool signed)
-        {
-            ReadOnlySpan<Block> blocks = MemoryMarshal.Cast<byte, Block>(data);
-
-            Span<ulong> output64 = MemoryMarshal.Cast<byte, ulong>(output);
-
-            int wInBlocks = (width + 3) / 4;
-            int hInBlocks = (height + 3) / 4;
-
-            for (int y = 0; y < hInBlocks; y++)
-            {
-                int y2 = y * 4;
-                int bh = Math.Min(4, height - y2);
-
-                for (int x = 0; x < wInBlocks; x++)
-                {
-                    int x2 = x * 4;
-                    int bw = Math.Min(4, width - x2);
-
-                    DecodeBlock(blocks[y * wInBlocks + x], output64.Slice(y2 * width + x2), bw, bh, width, signed);
-                }
-            }
-        }
-
-        private static void DecodeBlock(Block block, Span<ulong> output, int w, int h, int width, bool signed)
-        {
-            int mode = (int)(block.Low & 3);
-            if ((mode & 2) != 0)
-            {
-                mode = (int)(block.Low & 0x1f);
-            }
-
-            Span<RgbaColor32> endPoints = stackalloc RgbaColor32[4];
-            int subsetCount = DecodeEndPoints(ref block, endPoints, mode, signed);
-            if (subsetCount == 0)
-            {
-                // Mode is invalid, the spec mandates that hardware fills the block with
-                // a opaque black color.
-                for (int ty = 0; ty < h; ty++)
-                {
-                    int baseOffs = ty * width;
-
-                    for (int tx = 0; tx < w; tx++)
-                    {
-                        output[baseOffs + tx] = (ulong)HalfOne << 48;
-                    }
-                }
-
-                return;
-            }
-
-            int partition;
-            int indexBitCount;
-            ulong indices;
-
-            if (subsetCount > 1)
-            {
-                partition = (int)((block.High >> 13) & 0x1F);
-                indexBitCount = 3;
-
-                int fixUpIndex = BC67Tables.FixUpIndices[subsetCount - 1][partition][1] * 3;
-                ulong lowMask = (ulong.MaxValue >> (65 - fixUpIndex)) << 3;
-                ulong highMask = ulong.MaxValue << (fixUpIndex + 3);
-
-                indices = ((block.High >> 16) & highMask) | ((block.High >> 17) & lowMask) | ((block.High >> 18) & 3);
-            }
-            else
-            {
-                partition = 0;
-                indexBitCount = 4;
-                indices = (block.High & ~0xFUL) | ((block.High >> 1) & 7);
-            }
-
-            ulong indexMask = (1UL << indexBitCount) - 1;
-
-            for (int ty = 0; ty < h; ty++)
-            {
-                int baseOffs = ty * width;
-
-                for (int tx = 0; tx < w; tx++)
-                {
-                    int offs = baseOffs + tx;
-                    int index = (int)(indices & indexMask);
-                    int endPointBase = BC67Tables.PartitionTable[subsetCount - 1][partition][ty * 4 + tx] << 1;
-
-                    RgbaColor32 color1 = endPoints[endPointBase];
-                    RgbaColor32 color2 = endPoints[endPointBase + 1];
-
-                    RgbaColor32 color = BC67Utils.Interpolate(color1, color2, index, indexBitCount);
-
-                    output[offs] =
-                        (ulong)FinishUnquantize(color.R, signed) |
-                        ((ulong)FinishUnquantize(color.G, signed) << 16) |
-                        ((ulong)FinishUnquantize(color.B, signed) << 32) |
-                        ((ulong)HalfOne << 48);
-
-                    indices >>= indexBitCount;
-                }
-            }
-        }
-
-        private static int DecodeEndPoints(ref Block block, Span<RgbaColor32> endPoints, int mode, bool signed)
-        {
-            ulong low = block.Low;
-            ulong high = block.High;
-
-            int r0 = 0, g0 = 0, b0 = 0, r1 = 0, g1 = 0, b1 = 0, r2 = 0, g2 = 0, b2 = 0, r3 = 0, g3 = 0, b3 = 0;
-            int subsetCount;
-
-            switch (mode)
-            {
-                case 0:
-                    r0 = (int)(low >> 5) & 0x3FF;
-                    g0 = (int)(low >> 15) & 0x3FF;
-                    b0 = (int)(low >> 25) & 0x3FF;
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 10);
-                        g0 = SignExtend(g0, 10);
-                        b0 = SignExtend(b0, 10);
-                    }
-
-                    r1 = r0 + SignExtend((int)(low >> 35), 5);
-                    g1 = g0 + SignExtend((int)(low >> 45), 5);
-                    b1 = b0 + SignExtend((int)(low >> 55), 5);
-
-                    r2 = r0 + SignExtend((int)(high >> 1), 5);
-                    g2 = g0 + SignExtend((int)(((low << 2) & 0x10) | ((low >> 41) & 0xF)), 5);
-                    b2 = b0 + SignExtend((int)(((low << 1) & 0x10) | ((high << 3) & 0x08) | (low >> 61)), 5);
-
-                    r3 = r0 + SignExtend((int)(high >> 7), 5);
-                    g3 = g0 + SignExtend((int)(((low >> 36) & 0x10) | ((low >> 51) & 0xF)), 5);
-                    b3 = b0 + SignExtend((int)(
-                        ((low) & 0x10) |
-                        ((high >> 9) & 0x08) |
-                        ((high >> 4) & 0x04) |
-                        ((low >> 59) & 0x02) |
-                        ((low >> 50) & 0x01)), 5);
-
-                    r0 = Unquantize(r0, 10, signed);
-                    g0 = Unquantize(g0, 10, signed);
-                    b0 = Unquantize(b0, 10, signed);
-
-                    r1 = Unquantize(r1 & 0x3FF, 10, signed);
-                    g1 = Unquantize(g1 & 0x3FF, 10, signed);
-                    b1 = Unquantize(b1 & 0x3FF, 10, signed);
-
-                    r2 = Unquantize(r2 & 0x3FF, 10, signed);
-                    g2 = Unquantize(g2 & 0x3FF, 10, signed);
-                    b2 = Unquantize(b2 & 0x3FF, 10, signed);
-
-                    r3 = Unquantize(r3 & 0x3FF, 10, signed);
-                    g3 = Unquantize(g3 & 0x3FF, 10, signed);
-                    b3 = Unquantize(b3 & 0x3FF, 10, signed);
-
-                    subsetCount = 2;
-                    break;
-                case 1:
-                    r0 = (int)(low >> 5) & 0x7F;
-                    g0 = (int)(low >> 15) & 0x7F;
-                    b0 = (int)(low >> 25) & 0x7F;
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 7);
-                        g0 = SignExtend(g0, 7);
-                        b0 = SignExtend(b0, 7);
-                    }
-
-                    r1 = r0 + SignExtend((int)(low >> 35), 6);
-                    g1 = g0 + SignExtend((int)(low >> 45), 6);
-                    b1 = b0 + SignExtend((int)(low >> 55), 6);
-
-                    r2 = r0 + SignExtend((int)(high >> 1), 6);
-                    g2 = g0 + SignExtend((int)(((low << 3) & 0x20) | ((low >> 20) & 0x10) | ((low >> 41) & 0x0F)), 6);
-                    b2 = b0 + SignExtend((int)(
-                        ((low >> 17) & 0x20) |
-                        ((low >> 10) & 0x10) |
-                        ((high << 3) & 0x08) |
-                        (low >> 61)), 6);
-
-                    r3 = r0 + SignExtend((int)(high >> 7), 6);
-                    g3 = g0 + SignExtend((int)(((low << 1) & 0x30) | ((low >> 51) & 0xF)), 6);
-                    b3 = b0 + SignExtend((int)(
-                        ((low >> 28) & 0x20) |
-                        ((low >> 30) & 0x10) |
-                        ((low >> 29) & 0x08) |
-                        ((low >> 21) & 0x04) |
-                        ((low >> 12) & 0x03)), 6);
-
-                    r0 = Unquantize(r0, 7, signed);
-                    g0 = Unquantize(g0, 7, signed);
-                    b0 = Unquantize(b0, 7, signed);
-
-                    r1 = Unquantize(r1 & 0x7F, 7, signed);
-                    g1 = Unquantize(g1 & 0x7F, 7, signed);
-                    b1 = Unquantize(b1 & 0x7F, 7, signed);
-
-                    r2 = Unquantize(r2 & 0x7F, 7, signed);
-                    g2 = Unquantize(g2 & 0x7F, 7, signed);
-                    b2 = Unquantize(b2 & 0x7F, 7, signed);
-
-                    r3 = Unquantize(r3 & 0x7F, 7, signed);
-                    g3 = Unquantize(g3 & 0x7F, 7, signed);
-                    b3 = Unquantize(b3 & 0x7F, 7, signed);
-
-                    subsetCount = 2;
-                    break;
-                case 2:
-                    r0 = (int)(((low >> 30) & 0x400) | ((low >> 5) & 0x3FF));
-                    g0 = (int)(((low >> 39) & 0x400) | ((low >> 15) & 0x3FF));
-                    b0 = (int)(((low >> 49) & 0x400) | ((low >> 25) & 0x3FF));
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 11);
-                        g0 = SignExtend(g0, 11);
-                        b0 = SignExtend(b0, 11);
-                    }
-
-                    r1 = r0 + SignExtend((int)(low >> 35), 5);
-                    g1 = g0 + SignExtend((int)(low >> 45), 4);
-                    b1 = b0 + SignExtend((int)(low >> 55), 4);
-
-                    r2 = r0 + SignExtend((int)(high >> 1), 5);
-                    g2 = g0 + SignExtend((int)(low >> 41), 4);
-                    b2 = b0 + SignExtend((int)(((high << 3) & 8) | (low >> 61)), 4);
-
-                    r3 = r0 + SignExtend((int)(high >> 7), 5);
-                    g3 = g0 + SignExtend((int)(low >> 51), 4);
-                    b3 = b0 + SignExtend((int)(
-                        ((high >> 9) & 8) |
-                        ((high >> 4) & 4) |
-                        ((low >> 59) & 2) |
-                        ((low >> 50) & 1)), 4);
-
-                    r0 = Unquantize(r0, 11, signed);
-                    g0 = Unquantize(g0, 11, signed);
-                    b0 = Unquantize(b0, 11, signed);
-
-                    r1 = Unquantize(r1 & 0x7FF, 11, signed);
-                    g1 = Unquantize(g1 & 0x7FF, 11, signed);
-                    b1 = Unquantize(b1 & 0x7FF, 11, signed);
-
-                    r2 = Unquantize(r2 & 0x7FF, 11, signed);
-                    g2 = Unquantize(g2 & 0x7FF, 11, signed);
-                    b2 = Unquantize(b2 & 0x7FF, 11, signed);
-
-                    r3 = Unquantize(r3 & 0x7FF, 11, signed);
-                    g3 = Unquantize(g3 & 0x7FF, 11, signed);
-                    b3 = Unquantize(b3 & 0x7FF, 11, signed);
-
-                    subsetCount = 2;
-                    break;
-                case 3:
-                    r0 = (int)(low >> 5) & 0x3FF;
-                    g0 = (int)(low >> 15) & 0x3FF;
-                    b0 = (int)(low >> 25) & 0x3FF;
-
-                    r1 = (int)(low >> 35) & 0x3FF;
-                    g1 = (int)(low >> 45) & 0x3FF;
-                    b1 = (int)(((high << 9) & 0x200) | (low >> 55));
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 10);
-                        g0 = SignExtend(g0, 10);
-                        b0 = SignExtend(b0, 10);
-
-                        r1 = SignExtend(r1, 10);
-                        g1 = SignExtend(g1, 10);
-                        b1 = SignExtend(b1, 10);
-                    }
-
-                    r0 = Unquantize(r0, 10, signed);
-                    g0 = Unquantize(g0, 10, signed);
-                    b0 = Unquantize(b0, 10, signed);
-
-                    r1 = Unquantize(r1, 10, signed);
-                    g1 = Unquantize(g1, 10, signed);
-                    b1 = Unquantize(b1, 10, signed);
-
-                    subsetCount = 1;
-                    break;
-                case 6:
-                    r0 = (int)(((low >> 29) & 0x400) | ((low >> 5) & 0x3FF));
-                    g0 = (int)(((low >> 40) & 0x400) | ((low >> 15) & 0x3FF));
-                    b0 = (int)(((low >> 49) & 0x400) | ((low >> 25) & 0x3FF));
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 11);
-                        g0 = SignExtend(g0, 11);
-                        b0 = SignExtend(b0, 11);
-                    }
-
-                    r1 = r0 + SignExtend((int)(low >> 35), 4);
-                    g1 = g0 + SignExtend((int)(low >> 45), 5);
-                    b1 = b0 + SignExtend((int)(low >> 55), 4);
-
-                    r2 = r0 + SignExtend((int)(high >> 1), 4);
-                    g2 = g0 + SignExtend((int)(((high >> 7) & 0x10) | ((low >> 41) & 0x0F)), 5);
-                    b2 = b0 + SignExtend((int)(((high << 3) & 0x08) | ((low >> 61))), 4);
-
-                    r3 = r0 + SignExtend((int)(high >> 7), 4);
-                    g3 = g0 + SignExtend((int)(((low >> 36) & 0x10) | ((low >> 51) & 0x0F)), 5);
-                    b3 = b0 + SignExtend((int)(
-                        ((high >> 9) & 8) |
-                        ((high >> 4) & 4) |
-                        ((low >> 59) & 2) |
-                        ((high >> 5) & 1)), 4);
-
-                    r0 = Unquantize(r0, 11, signed);
-                    g0 = Unquantize(g0, 11, signed);
-                    b0 = Unquantize(b0, 11, signed);
-
-                    r1 = Unquantize(r1 & 0x7FF, 11, signed);
-                    g1 = Unquantize(g1 & 0x7FF, 11, signed);
-                    b1 = Unquantize(b1 & 0x7FF, 11, signed);
-
-                    r2 = Unquantize(r2 & 0x7FF, 11, signed);
-                    g2 = Unquantize(g2 & 0x7FF, 11, signed);
-                    b2 = Unquantize(b2 & 0x7FF, 11, signed);
-
-                    r3 = Unquantize(r3 & 0x7FF, 11, signed);
-                    g3 = Unquantize(g3 & 0x7FF, 11, signed);
-                    b3 = Unquantize(b3 & 0x7FF, 11, signed);
-
-                    subsetCount = 2;
-                    break;
-                case 7:
-                    r0 = (int)(((low >> 34) & 0x400) | ((low >> 5) & 0x3FF));
-                    g0 = (int)(((low >> 44) & 0x400) | ((low >> 15) & 0x3FF));
-                    b0 = (int)(((high << 10) & 0x400) | ((low >> 25) & 0x3FF));
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 11);
-                        g0 = SignExtend(g0, 11);
-                        b0 = SignExtend(b0, 11);
-                    }
-
-                    r1 = (r0 + SignExtend((int)(low >> 35), 9)) & 0x7FF;
-                    g1 = (g0 + SignExtend((int)(low >> 45), 9)) & 0x7FF;
-                    b1 = (b0 + SignExtend((int)(low >> 55), 9)) & 0x7FF;
-
-                    r0 = Unquantize(r0, 11, signed);
-                    g0 = Unquantize(g0, 11, signed);
-                    b0 = Unquantize(b0, 11, signed);
-
-                    r1 = Unquantize(r1, 11, signed);
-                    g1 = Unquantize(g1, 11, signed);
-                    b1 = Unquantize(b1, 11, signed);
-
-                    subsetCount = 1;
-                    break;
-                case 10:
-                    r0 = (int)(((low >> 29) & 0x400) | ((low >> 5) & 0x3FF));
-                    g0 = (int)(((low >> 39) & 0x400) | ((low >> 15) & 0x3FF));
-                    b0 = (int)(((low >> 50) & 0x400) | ((low >> 25) & 0x3FF));
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 11);
-                        g0 = SignExtend(g0, 11);
-                        b0 = SignExtend(b0, 11);
-                    }
-
-                    r1 = r0 + SignExtend((int)(low >> 35), 4);
-                    g1 = g0 + SignExtend((int)(low >> 45), 4);
-                    b1 = b0 + SignExtend((int)(low >> 55), 5);
-
-                    r2 = r0 + SignExtend((int)(high >> 1), 4);
-                    g2 = g0 + SignExtend((int)(low >> 41), 4);
-                    b2 = b0 + SignExtend((int)(((low >> 36) & 0x10) | ((high << 3) & 8) | (low >> 61)), 5);
-
-                    r3 = r0 + SignExtend((int)(high >> 7), 4);
-                    g3 = g0 + SignExtend((int)(low >> 51), 4);
-                    b3 = b0 + SignExtend((int)(
-                        ((high >> 7) & 0x10) |
-                        ((high >> 9) & 0x08) |
-                        ((high >> 4) & 0x06) |
-                        ((low >> 50) & 0x01)), 5);
-
-                    r0 = Unquantize(r0, 11, signed);
-                    g0 = Unquantize(g0, 11, signed);
-                    b0 = Unquantize(b0, 11, signed);
-
-                    r1 = Unquantize(r1 & 0x7FF, 11, signed);
-                    g1 = Unquantize(g1 & 0x7FF, 11, signed);
-                    b1 = Unquantize(b1 & 0x7FF, 11, signed);
-
-                    r2 = Unquantize(r2 & 0x7FF, 11, signed);
-                    g2 = Unquantize(g2 & 0x7FF, 11, signed);
-                    b2 = Unquantize(b2 & 0x7FF, 11, signed);
-
-                    r3 = Unquantize(r3 & 0x7FF, 11, signed);
-                    g3 = Unquantize(g3 & 0x7FF, 11, signed);
-                    b3 = Unquantize(b3 & 0x7FF, 11, signed);
-
-                    subsetCount = 2;
-                    break;
-                case 11:
-                    r0 = (int)(((low >> 32) & 0x800) | ((low >> 34) & 0x400) | ((low >> 5) & 0x3FF));
-                    g0 = (int)(((low >> 42) & 0x800) | ((low >> 44) & 0x400) | ((low >> 15) & 0x3FF));
-                    b0 = (int)(((low >> 52) & 0x800) | ((high << 10) & 0x400) | ((low >> 25) & 0x3FF));
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 12);
-                        g0 = SignExtend(g0, 12);
-                        b0 = SignExtend(b0, 12);
-                    }
-
-                    r1 = (r0 + SignExtend((int)(low >> 35), 8)) & 0xFFF;
-                    g1 = (g0 + SignExtend((int)(low >> 45), 8)) & 0xFFF;
-                    b1 = (b0 + SignExtend((int)(low >> 55), 8)) & 0xFFF;
-
-                    r0 = Unquantize(r0, 12, signed);
-                    g0 = Unquantize(g0, 12, signed);
-                    b0 = Unquantize(b0, 12, signed);
-
-                    r1 = Unquantize(r1, 12, signed);
-                    g1 = Unquantize(g1, 12, signed);
-                    b1 = Unquantize(b1, 12, signed);
-
-                    subsetCount = 1;
-                    break;
-                case 14:
-                    r0 = (int)(low >> 5) & 0x1FF;
-                    g0 = (int)(low >> 15) & 0x1FF;
-                    b0 = (int)(low >> 25) & 0x1FF;
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 9);
-                        g0 = SignExtend(g0, 9);
-                        b0 = SignExtend(b0, 9);
-                    }
-
-                    r1 = r0 + SignExtend((int)(low >> 35), 5);
-                    g1 = g0 + SignExtend((int)(low >> 45), 5);
-                    b1 = b0 + SignExtend((int)(low >> 55), 5);
-
-                    r2 = r0 + SignExtend((int)(high >> 1), 5);
-                    g2 = g0 + SignExtend((int)(((low >> 20) & 0x10) | ((low >> 41) & 0xF)), 5);
-                    b2 = b0 + SignExtend((int)(((low >> 10) & 0x10) | ((high << 3) & 8) | (low >> 61)), 5);
-
-                    r3 = r0 + SignExtend((int)(high >> 7), 5);
-                    g3 = g0 + SignExtend((int)(((low >> 36) & 0x10) | ((low >> 51) & 0xF)), 5);
-                    b3 = b0 + SignExtend((int)(
-                        ((low >> 30) & 0x10) |
-                        ((high >> 9) & 0x08) |
-                        ((high >> 4) & 0x04) |
-                        ((low >> 59) & 0x02) |
-                        ((low >> 50) & 0x01)), 5);
-
-                    r0 = Unquantize(r0, 9, signed);
-                    g0 = Unquantize(g0, 9, signed);
-                    b0 = Unquantize(b0, 9, signed);
-
-                    r1 = Unquantize(r1 & 0x1FF, 9, signed);
-                    g1 = Unquantize(g1 & 0x1FF, 9, signed);
-                    b1 = Unquantize(b1 & 0x1FF, 9, signed);
-
-                    r2 = Unquantize(r2 & 0x1FF, 9, signed);
-                    g2 = Unquantize(g2 & 0x1FF, 9, signed);
-                    b2 = Unquantize(b2 & 0x1FF, 9, signed);
-
-                    r3 = Unquantize(r3 & 0x1FF, 9, signed);
-                    g3 = Unquantize(g3 & 0x1FF, 9, signed);
-                    b3 = Unquantize(b3 & 0x1FF, 9, signed);
-
-                    subsetCount = 2;
-                    break;
-                case 15:
-                    r0 = (BitReverse6((int)(low >> 39) & 0x3F) << 10) | ((int)(low >> 5) & 0x3FF);
-                    g0 = (BitReverse6((int)(low >> 49) & 0x3F) << 10) | ((int)(low >> 15) & 0x3FF);
-                    b0 = ((BitReverse6((int)(low >> 59)) | (int)(high & 1)) << 10) | ((int)(low >> 25) & 0x3FF);
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 16);
-                        g0 = SignExtend(g0, 16);
-                        b0 = SignExtend(b0, 16);
-                    }
-
-                    r1 = (r0 + SignExtend((int)(low >> 35), 4)) & 0xFFFF;
-                    g1 = (g0 + SignExtend((int)(low >> 45), 4)) & 0xFFFF;
-                    b1 = (b0 + SignExtend((int)(low >> 55), 4)) & 0xFFFF;
-
-                    subsetCount = 1;
-                    break;
-                case 18:
-                    r0 = (int)(low >> 5) & 0xFF;
-                    g0 = (int)(low >> 15) & 0xFF;
-                    b0 = (int)(low >> 25) & 0xFF;
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 8);
-                        g0 = SignExtend(g0, 8);
-                        b0 = SignExtend(b0, 8);
-                    }
-
-                    r1 = r0 + SignExtend((int)(low >> 35), 6);
-                    g1 = g0 + SignExtend((int)(low >> 45), 5);
-                    b1 = b0 + SignExtend((int)(low >> 55), 5);
-
-                    r2 = r0 + SignExtend((int)(high >> 1), 6);
-                    g2 = g0 + SignExtend((int)(((low >> 20) & 0x10) | ((low >> 41) & 0xF)), 5);
-                    b2 = b0 + SignExtend((int)(((low >> 10) & 0x10) | ((high << 3) & 8) | (low >> 61)), 5);
-
-                    r3 = r0 + SignExtend((int)(high >> 7), 6);
-                    g3 = g0 + SignExtend((int)(((low >> 9) & 0x10) | ((low >> 51) & 0xF)), 5);
-                    b3 = b0 + SignExtend((int)(
-                        ((low >> 30) & 0x18) |
-                        ((low >> 21) & 0x04) |
-                        ((low >> 59) & 0x02) |
-                        ((low >> 50) & 0x01)), 5);
-
-                    r0 = Unquantize(r0, 8, signed);
-                    g0 = Unquantize(g0, 8, signed);
-                    b0 = Unquantize(b0, 8, signed);
-
-                    r1 = Unquantize(r1 & 0xFF, 8, signed);
-                    g1 = Unquantize(g1 & 0xFF, 8, signed);
-                    b1 = Unquantize(b1 & 0xFF, 8, signed);
-
-                    r2 = Unquantize(r2 & 0xFF, 8, signed);
-                    g2 = Unquantize(g2 & 0xFF, 8, signed);
-                    b2 = Unquantize(b2 & 0xFF, 8, signed);
-
-                    r3 = Unquantize(r3 & 0xFF, 8, signed);
-                    g3 = Unquantize(g3 & 0xFF, 8, signed);
-                    b3 = Unquantize(b3 & 0xFF, 8, signed);
-
-                    subsetCount = 2;
-                    break;
-                case 22:
-                    r0 = (int)(low >> 5) & 0xFF;
-                    g0 = (int)(low >> 15) & 0xFF;
-                    b0 = (int)(low >> 25) & 0xFF;
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 8);
-                        g0 = SignExtend(g0, 8);
-                        b0 = SignExtend(b0, 8);
-                    }
-
-                    r1 = r0 + SignExtend((int)(low >> 35), 5);
-                    g1 = g0 + SignExtend((int)(low >> 45), 6);
-                    b1 = b0 + SignExtend((int)(low >> 55), 5);
-
-                    r2 = r0 + SignExtend((int)(high >> 1), 5);
-                    g2 = g0 + SignExtend((int)(((low >> 18) & 0x20) | ((low >> 20) & 0x10) | ((low >> 41) & 0xF)), 6);
-                    b2 = b0 + SignExtend((int)(((low >> 10) & 0x10) | ((high << 3) & 0x08) | (low >> 61)), 5);
-
-                    r3 = r0 + SignExtend((int)(high >> 7), 5);
-                    g3 = g0 + SignExtend((int)(((low >> 28) & 0x20) | ((low >> 36) & 0x10) | ((low >> 51) & 0x0F)), 6);
-                    b3 = b0 + SignExtend((int)(
-                        ((low >> 30) & 0x10) |
-                        ((high >> 9) & 0x08) |
-                        ((high >> 4) & 0x04) |
-                        ((low >> 59) & 0x02) |
-                        ((low >> 13) & 0x01)), 5);
-
-                    r0 = Unquantize(r0, 8, signed);
-                    g0 = Unquantize(g0, 8, signed);
-                    b0 = Unquantize(b0, 8, signed);
-
-                    r1 = Unquantize(r1 & 0xFF, 8, signed);
-                    g1 = Unquantize(g1 & 0xFF, 8, signed);
-                    b1 = Unquantize(b1 & 0xFF, 8, signed);
-
-                    r2 = Unquantize(r2 & 0xFF, 8, signed);
-                    g2 = Unquantize(g2 & 0xFF, 8, signed);
-                    b2 = Unquantize(b2 & 0xFF, 8, signed);
-
-                    r3 = Unquantize(r3 & 0xFF, 8, signed);
-                    g3 = Unquantize(g3 & 0xFF, 8, signed);
-                    b3 = Unquantize(b3 & 0xFF, 8, signed);
-
-                    subsetCount = 2;
-                    break;
-                case 26:
-                    r0 = (int)(low >> 5) & 0xFF;
-                    g0 = (int)(low >> 15) & 0xFF;
-                    b0 = (int)(low >> 25) & 0xFF;
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 8);
-                        g0 = SignExtend(g0, 8);
-                        b0 = SignExtend(b0, 8);
-                    }
-
-                    r1 = r0 + SignExtend((int)(low >> 35), 5);
-                    g1 = g0 + SignExtend((int)(low >> 45), 5);
-                    b1 = b0 + SignExtend((int)(low >> 55), 6);
-
-                    r2 = r0 + SignExtend((int)(high >> 1), 5);
-                    g2 = g0 + SignExtend((int)(((low >> 20) & 0x10) | ((low >> 41) & 0xF)), 5);
-                    b2 = b0 + SignExtend((int)(
-                        ((low >> 18) & 0x20) |
-                        ((low >> 10) & 0x10) |
-                        ((high << 3) & 0x08) |
-                        (low >> 61)), 6);
-
-                    r3 = r0 + SignExtend((int)(high >> 7), 5);
-                    g3 = g0 + SignExtend((int)(((low >> 36) & 0x10) | ((low >> 51) & 0xF)), 5);
-                    b3 = b0 + SignExtend((int)(
-                        ((low >> 28) & 0x20) |
-                        ((low >> 30) & 0x10) |
-                        ((high >> 9) & 0x08) |
-                        ((high >> 4) & 0x04) |
-                        ((low >> 12) & 0x02) |
-                        ((low >> 50) & 0x01)), 6);
-
-                    r0 = Unquantize(r0, 8, signed);
-                    g0 = Unquantize(g0, 8, signed);
-                    b0 = Unquantize(b0, 8, signed);
-
-                    r1 = Unquantize(r1 & 0xFF, 8, signed);
-                    g1 = Unquantize(g1 & 0xFF, 8, signed);
-                    b1 = Unquantize(b1 & 0xFF, 8, signed);
-
-                    r2 = Unquantize(r2 & 0xFF, 8, signed);
-                    g2 = Unquantize(g2 & 0xFF, 8, signed);
-                    b2 = Unquantize(b2 & 0xFF, 8, signed);
-
-                    r3 = Unquantize(r3 & 0xFF, 8, signed);
-                    g3 = Unquantize(g3 & 0xFF, 8, signed);
-                    b3 = Unquantize(b3 & 0xFF, 8, signed);
-
-                    subsetCount = 2;
-                    break;
-                case 30:
-                    r0 = (int)(low >> 5) & 0x3F;
-                    g0 = (int)(low >> 15) & 0x3F;
-                    b0 = (int)(low >> 25) & 0x3F;
-
-                    r1 = (int)(low >> 35) & 0x3F;
-                    g1 = (int)(low >> 45) & 0x3F;
-                    b1 = (int)(low >> 55) & 0x3F;
-
-                    r2 = (int)(high >> 1) & 0x3F;
-                    g2 = (int)(((low >> 16) & 0x20) | ((low >> 20) & 0x10) | ((low >> 41) & 0xF));
-                    b2 = (int)(((low >> 17) & 0x20) | ((low >> 10) & 0x10) | ((high << 3) & 0x08) | (low >> 61));
-
-                    r3 = (int)(high >> 7) & 0x3F;
-                    g3 = (int)(((low >> 26) & 0x20) | ((low >> 7) & 0x10) | ((low >> 51) & 0xF));
-                    b3 = (int)(
-                        ((low >> 28) & 0x20) |
-                        ((low >> 30) & 0x10) |
-                        ((low >> 29) & 0x08) |
-                        ((low >> 21) & 0x04) |
-                        ((low >> 12) & 0x03));
-
-                    if (signed)
-                    {
-                        r0 = SignExtend(r0, 6);
-                        g0 = SignExtend(g0, 6);
-                        b0 = SignExtend(b0, 6);
-
-                        r1 = SignExtend(r1, 6);
-                        g1 = SignExtend(g1, 6);
-                        b1 = SignExtend(b1, 6);
-
-                        r2 = SignExtend(r2, 6);
-                        g2 = SignExtend(g2, 6);
-                        b2 = SignExtend(b2, 6);
-
-                        r3 = SignExtend(r3, 6);
-                        g3 = SignExtend(g3, 6);
-                        b3 = SignExtend(b3, 6);
-                    }
-
-                    r0 = Unquantize(r0, 6, signed);
-                    g0 = Unquantize(g0, 6, signed);
-                    b0 = Unquantize(b0, 6, signed);
-
-                    r1 = Unquantize(r1, 6, signed);
-                    g1 = Unquantize(g1, 6, signed);
-                    b1 = Unquantize(b1, 6, signed);
-
-                    r2 = Unquantize(r2, 6, signed);
-                    g2 = Unquantize(g2, 6, signed);
-                    b2 = Unquantize(b2, 6, signed);
-
-                    r3 = Unquantize(r3, 6, signed);
-                    g3 = Unquantize(g3, 6, signed);
-                    b3 = Unquantize(b3, 6, signed);
-
-                    subsetCount = 2;
-                    break;
-                default:
-                    subsetCount = 0;
-                    break;
-            }
-
-            if (subsetCount > 0)
-            {
-                endPoints[0] = new RgbaColor32(r0, g0, b0, HalfOne);
-                endPoints[1] = new RgbaColor32(r1, g1, b1, HalfOne);
-
-                if (subsetCount > 1)
-                {
-                    endPoints[2] = new RgbaColor32(r2, g2, b2, HalfOne);
-                    endPoints[3] = new RgbaColor32(r3, g3, b3, HalfOne);
-                }
-            }
-
-            return subsetCount;
-        }
-
-        private static int SignExtend(int value, int bits)
-        {
-            int shift = 32 - bits;
-            return (value << shift) >> shift;
-        }
-
-        private static int Unquantize(int value, int bits, bool signed)
-        {
-            if (signed)
-            {
-                if (bits >= 16)
-                {
-                    return value;
-                }
-                else
-                {
-                    bool sign = value < 0;
-
-                    if (sign)
-                    {
-                        value = -value;
-                    }
-
-                    if (value == 0)
-                    {
-                        return value;
-                    }
-                    else if (value >= ((1 << (bits - 1)) - 1))
-                    {
-                        value = 0x7FFF;
-                    }
-                    else
-                    {
-                        value = ((value << 15) + 0x4000) >> (bits - 1);
-                    }
-
-                    if (sign)
-                    {
-                        value = -value;
-                    }
-                }
-            }
-            else
-            {
-                if (bits >= 15 || value == 0)
-                {
-                    return value;
-                }
-                else if (value == ((1 << bits) - 1))
-                {
-                    return 0xFFFF;
-                }
-                else
-                {
-                    return ((value << 16) + 0x8000) >> bits;
-                }
-            }
-
-            return value;
-        }
-
-        private static ushort FinishUnquantize(int value, bool signed)
-        {
-            if (signed)
-            {
-                value = value < 0 ? -((-value * 31) >> 5) : (value * 31) >> 5;
-
-                int sign = 0;
-                if (value < 0)
-                {
-                    sign = 0x8000;
-                    value = -value;
-                }
-
-                return (ushort)(sign | value);
-            }
-            else
-            {
-                return (ushort)((value * 31) >> 6);
-            }
-        }
-
-        private static int BitReverse6(int value)
-        {
-            value = ((value >> 1) & 0x55) | ((value << 1) & 0xaa);
-            value = ((value >> 2) & 0x33) | ((value << 2) & 0xcc);
-            value = ((value >> 4) & 0x0f) | ((value << 4) & 0xf0);
-            return value >> 2;
-        }
-    }
-}