using Ryujinx.Common.Memory; using Ryujinx.Graphics.Nvdec.Vp9.Types; using System; namespace Ryujinx.Graphics.Nvdec.Vp9 { internal static class Luts { public static ReadOnlySpan SizeGroupLookup => new byte[] { 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 3 }; public static readonly BlockSize[][] SubsizeLookup = new BlockSize[][] { new BlockSize[] { // PARTITION_NONE BlockSize.Block4x4, BlockSize.Block4x8, BlockSize.Block8x4, BlockSize.Block8x8, BlockSize.Block8x16, BlockSize.Block16x8, BlockSize.Block16x16, BlockSize.Block16x32, BlockSize.Block32x16, BlockSize.Block32x32, BlockSize.Block32x64, BlockSize.Block64x32, BlockSize.Block64x64 }, new BlockSize[] { // PARTITION_HORZ BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.Block8x4, BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.Block16x8, BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.Block32x16, BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.Block64x32 }, new BlockSize[] { // PARTITION_VERT BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.Block4x8, BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.Block8x16, BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.Block16x32, BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.Block32x64 }, new BlockSize[] { // PARTITION_SPLIT BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.Block4x4, BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.Block8x8, BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.Block16x16, BlockSize.BlockInvalid, BlockSize.BlockInvalid, BlockSize.Block32x32 } }; public static readonly TxSize[] MaxTxSizeLookup = new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4, TxSize.Tx4x4, TxSize.Tx8x8, TxSize.Tx8x8, TxSize.Tx8x8, TxSize.Tx16x16, TxSize.Tx16x16, TxSize.Tx16x16, TxSize.Tx32x32, TxSize.Tx32x32, TxSize.Tx32x32, TxSize.Tx32x32 }; public static readonly TxSize[] TxModeToBiggestTxSize = new TxSize[] { TxSize.Tx4x4, // ONLY_4X4 TxSize.Tx8x8, // ALLOW_8X8 TxSize.Tx16x16, // ALLOW_16X16 TxSize.Tx32x32, // ALLOW_32X32 TxSize.Tx32x32, // TX_MODE_SELECT }; public static readonly BlockSize[][][] SsSizeLookup = new BlockSize[][][] { // ss_x == 0 ss_x == 0 ss_x == 1 ss_x == 1 // ss_y == 0 ss_y == 1 ss_y == 0 ss_y == 1 new BlockSize[][] { new BlockSize[] { BlockSize.Block4x4, BlockSize.BlockInvalid }, new BlockSize[] { BlockSize.BlockInvalid, BlockSize.BlockInvalid } }, new BlockSize[][] { new BlockSize[] { BlockSize.Block4x8, BlockSize.Block4x4 }, new BlockSize[] { BlockSize.BlockInvalid, BlockSize.BlockInvalid } }, new BlockSize[][] { new BlockSize[] { BlockSize.Block8x4, BlockSize.BlockInvalid }, new BlockSize[] { BlockSize.Block4x4, BlockSize.BlockInvalid } }, new BlockSize[][] { new BlockSize[] { BlockSize.Block8x8, BlockSize.Block8x4 }, new BlockSize[] { BlockSize.Block4x8, BlockSize.Block4x4 } }, new BlockSize[][] { new BlockSize[] { BlockSize.Block8x16, BlockSize.Block8x8 }, new BlockSize[] { BlockSize.BlockInvalid, BlockSize.Block4x8 } }, new BlockSize[][] { new BlockSize[] { BlockSize.Block16x8, BlockSize.BlockInvalid }, new BlockSize[] { BlockSize.Block8x8, BlockSize.Block8x4 } }, new BlockSize[][] { new BlockSize[] { BlockSize.Block16x16, BlockSize.Block16x8 }, new BlockSize[] { BlockSize.Block8x16, BlockSize.Block8x8 } }, new BlockSize[][] { new BlockSize[] { BlockSize.Block16x32, BlockSize.Block16x16 }, new BlockSize[] { BlockSize.BlockInvalid, BlockSize.Block8x16 } }, new BlockSize[][] { new BlockSize[] { BlockSize.Block32x16, BlockSize.BlockInvalid }, new BlockSize[] { BlockSize.Block16x16, BlockSize.Block16x8 } }, new BlockSize[][] { new BlockSize[] { BlockSize.Block32x32, BlockSize.Block32x16 }, new BlockSize[] { BlockSize.Block16x32, BlockSize.Block16x16 } }, new BlockSize[][] { new BlockSize[] { BlockSize.Block32x64, BlockSize.Block32x32 }, new BlockSize[] { BlockSize.BlockInvalid, BlockSize.Block16x32 } }, new BlockSize[][] { new BlockSize[] { BlockSize.Block64x32, BlockSize.BlockInvalid }, new BlockSize[] { BlockSize.Block32x32, BlockSize.Block32x16 } }, new BlockSize[][] { new BlockSize[] { BlockSize.Block64x64, BlockSize.Block64x32 }, new BlockSize[] { BlockSize.Block32x64, BlockSize.Block32x32 } }, }; public static readonly TxSize[][][][] UvTxsizeLookup = new TxSize[][][][] { // ss_x == 0 ss_x == 0 ss_x == 1 ss_x == 1 // ss_y == 0 ss_y == 1 ss_y == 0 ss_y == 1 new TxSize[][][] { // BLOCK_4X4 new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, }, new TxSize[][][] { // BLOCK_4X8 new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, }, new TxSize[][][] { // BLOCK_8X4 new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, }, new TxSize[][][] { // BLOCK_8X8 new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, }, new TxSize[][][] { // BLOCK_8X16 new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, }, new TxSize[][][] { // BLOCK_16X8 new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 } }, }, new TxSize[][][] { // BLOCK_16X16 new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 } }, new TxSize[][] { new TxSize[] { TxSize.Tx16x16, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 } }, new TxSize[][] { new TxSize[] { TxSize.Tx16x16, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 } }, }, new TxSize[][][] { // BLOCK_16X32 new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 } }, new TxSize[][] { new TxSize[] { TxSize.Tx16x16, TxSize.Tx16x16 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 } }, new TxSize[][] { new TxSize[] { TxSize.Tx16x16, TxSize.Tx16x16 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 } }, }, new TxSize[][][] { // BLOCK_32X16 new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 } }, new TxSize[][] { new TxSize[] { TxSize.Tx16x16, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx16x16, TxSize.Tx8x8 } }, new TxSize[][] { new TxSize[] { TxSize.Tx16x16, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx16x16, TxSize.Tx8x8 } }, }, new TxSize[][][] { // BLOCK_32X32 new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 } }, new TxSize[][] { new TxSize[] { TxSize.Tx16x16, TxSize.Tx16x16 }, new TxSize[] { TxSize.Tx16x16, TxSize.Tx16x16 } }, new TxSize[][] { new TxSize[] { TxSize.Tx32x32, TxSize.Tx16x16 }, new TxSize[] { TxSize.Tx16x16, TxSize.Tx16x16 } }, }, new TxSize[][][] { // BLOCK_32X64 new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 } }, new TxSize[][] { new TxSize[] { TxSize.Tx16x16, TxSize.Tx16x16 }, new TxSize[] { TxSize.Tx16x16, TxSize.Tx16x16 } }, new TxSize[][] { new TxSize[] { TxSize.Tx32x32, TxSize.Tx32x32 }, new TxSize[] { TxSize.Tx16x16, TxSize.Tx16x16 } }, }, new TxSize[][][] { // BLOCK_64X32 new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 } }, new TxSize[][] { new TxSize[] { TxSize.Tx16x16, TxSize.Tx16x16 }, new TxSize[] { TxSize.Tx16x16, TxSize.Tx16x16 } }, new TxSize[][] { new TxSize[] { TxSize.Tx32x32, TxSize.Tx16x16 }, new TxSize[] { TxSize.Tx32x32, TxSize.Tx16x16 } }, }, new TxSize[][][] { // BLOCK_64X64 new TxSize[][] { new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 }, new TxSize[] { TxSize.Tx4x4, TxSize.Tx4x4 } }, new TxSize[][] { new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 }, new TxSize[] { TxSize.Tx8x8, TxSize.Tx8x8 } }, new TxSize[][] { new TxSize[] { TxSize.Tx16x16, TxSize.Tx16x16 }, new TxSize[] { TxSize.Tx16x16, TxSize.Tx16x16 } }, new TxSize[][] { new TxSize[] { TxSize.Tx32x32, TxSize.Tx32x32 }, new TxSize[] { TxSize.Tx32x32, TxSize.Tx32x32 } }, }, }; public struct PartitionContextPair { public sbyte Above; public sbyte Left; public PartitionContextPair(sbyte above, sbyte left) { Above = above; Left = left; } } // Generates 4 bit field in which each bit set to 1 represents // a blocksize partition 1111 means we split 64x64, 32x32, 16x16 // and 8x8. 1000 means we just split the 64x64 to 32x32 public static readonly PartitionContextPair[] PartitionContextLookup = new PartitionContextPair[] { new PartitionContextPair(15, 15), // 4X4 - {0b1111, 0b1111} new PartitionContextPair(15, 14), // 4X8 - {0b1111, 0b1110} new PartitionContextPair(14, 15), // 8X4 - {0b1110, 0b1111} new PartitionContextPair(14, 14), // 8X8 - {0b1110, 0b1110} new PartitionContextPair(14, 12), // 8X16 - {0b1110, 0b1100} new PartitionContextPair(12, 14), // 16X8 - {0b1100, 0b1110} new PartitionContextPair(12, 12), // 16X16 - {0b1100, 0b1100} new PartitionContextPair(12, 8), // 16X32 - {0b1100, 0b1000} new PartitionContextPair(8, 12), // 32X16 - {0b1000, 0b1100} new PartitionContextPair(8, 8), // 32X32 - {0b1000, 0b1000} new PartitionContextPair(8, 0), // 32X64 - {0b1000, 0b0000} new PartitionContextPair(0, 8), // 64X32 - {0b0000, 0b1000} new PartitionContextPair(0, 0), // 64X64 - {0b0000, 0b0000} }; // Filter private static readonly Array8[] BilinearFilters = new Array8[] { NewArray8Short(0, 0, 0, 128, 0, 0, 0, 0), NewArray8Short(0, 0, 0, 120, 8, 0, 0, 0), NewArray8Short(0, 0, 0, 112, 16, 0, 0, 0), NewArray8Short(0, 0, 0, 104, 24, 0, 0, 0), NewArray8Short(0, 0, 0, 96, 32, 0, 0, 0), NewArray8Short(0, 0, 0, 88, 40, 0, 0, 0), NewArray8Short(0, 0, 0, 80, 48, 0, 0, 0), NewArray8Short(0, 0, 0, 72, 56, 0, 0, 0), NewArray8Short(0, 0, 0, 64, 64, 0, 0, 0), NewArray8Short(0, 0, 0, 56, 72, 0, 0, 0), NewArray8Short(0, 0, 0, 48, 80, 0, 0, 0), NewArray8Short(0, 0, 0, 40, 88, 0, 0, 0), NewArray8Short(0, 0, 0, 32, 96, 0, 0, 0), NewArray8Short(0, 0, 0, 24, 104, 0, 0, 0), NewArray8Short(0, 0, 0, 16, 112, 0, 0, 0), NewArray8Short(0, 0, 0, 8, 120, 0, 0, 0) }; // Lagrangian interpolation filter private static readonly Array8[] SubPelFilters8 = new Array8[] { NewArray8Short(0, 0, 0, 128, 0, 0, 0, 0), NewArray8Short(0, 1, -5, 126, 8, -3, 1, 0), NewArray8Short(-1, 3, -10, 122, 18, -6, 2, 0), NewArray8Short(-1, 4, -13, 118, 27, -9, 3, -1), NewArray8Short(-1, 4, -16, 112, 37, -11, 4, -1), NewArray8Short(-1, 5, -18, 105, 48, -14, 4, -1), NewArray8Short(-1, 5, -19, 97, 58, -16, 5, -1), NewArray8Short(-1, 6, -19, 88, 68, -18, 5, -1), NewArray8Short(-1, 6, -19, 78, 78, -19, 6, -1), NewArray8Short(-1, 5, -18, 68, 88, -19, 6, -1), NewArray8Short(-1, 5, -16, 58, 97, -19, 5, -1), NewArray8Short(-1, 4, -14, 48, 105, -18, 5, -1), NewArray8Short(-1, 4, -11, 37, 112, -16, 4, -1), NewArray8Short(-1, 3, -9, 27, 118, -13, 4, -1), NewArray8Short(0, 2, -6, 18, 122, -10, 3, -1), NewArray8Short(0, 1, -3, 8, 126, -5, 1, 0) }; // DCT based filter private static readonly Array8[] SubPelFilters8S = new Array8[] { NewArray8Short(0, 0, 0, 128, 0, 0, 0, 0), NewArray8Short(-1, 3, -7, 127, 8, -3, 1, 0), NewArray8Short(-2, 5, -13, 125, 17, -6, 3, -1), NewArray8Short(-3, 7, -17, 121, 27, -10, 5, -2), NewArray8Short(-4, 9, -20, 115, 37, -13, 6, -2), NewArray8Short(-4, 10, -23, 108, 48, -16, 8, -3), NewArray8Short(-4, 10, -24, 100, 59, -19, 9, -3), NewArray8Short(-4, 11, -24, 90, 70, -21, 10, -4), NewArray8Short(-4, 11, -23, 80, 80, -23, 11, -4), NewArray8Short(-4, 10, -21, 70, 90, -24, 11, -4), NewArray8Short(-3, 9, -19, 59, 100, -24, 10, -4), NewArray8Short(-3, 8, -16, 48, 108, -23, 10, -4), NewArray8Short(-2, 6, -13, 37, 115, -20, 9, -4), NewArray8Short(-2, 5, -10, 27, 121, -17, 7, -3), NewArray8Short(-1, 3, -6, 17, 125, -13, 5, -2), NewArray8Short(0, 1, -3, 8, 127, -7, 3, -1) }; // freqmultiplier = 0.5 private static readonly Array8[] SubPelFilters8Lp = new Array8[] { NewArray8Short(0, 0, 0, 128, 0, 0, 0, 0), NewArray8Short(-3, -1, 32, 64, 38, 1, -3, 0), NewArray8Short(-2, -2, 29, 63, 41, 2, -3, 0), NewArray8Short(-2, -2, 26, 63, 43, 4, -4, 0), NewArray8Short(-2, -3, 24, 62, 46, 5, -4, 0), NewArray8Short(-2, -3, 21, 60, 49, 7, -4, 0), NewArray8Short(-1, -4, 18, 59, 51, 9, -4, 0), NewArray8Short(-1, -4, 16, 57, 53, 12, -4, -1), NewArray8Short(-1, -4, 14, 55, 55, 14, -4, -1), NewArray8Short(-1, -4, 12, 53, 57, 16, -4, -1), NewArray8Short(0, -4, 9, 51, 59, 18, -4, -1), NewArray8Short(0, -4, 7, 49, 60, 21, -3, -2), NewArray8Short(0, -4, 5, 46, 62, 24, -3, -2), NewArray8Short(0, -4, 4, 43, 63, 26, -2, -2), NewArray8Short(0, -3, 2, 41, 63, 29, -2, -2), NewArray8Short(0, -3, 1, 38, 64, 32, -1, -3) }; private static Array8 NewArray8Short(short e0, short e1, short e2, short e3, short e4, short e5, short e6, short e7) { Array8 output = new Array8(); output[0] = e0; output[1] = e1; output[2] = e2; output[3] = e3; output[4] = e4; output[5] = e5; output[6] = e6; output[7] = e7; return output; } public static readonly Array8[][] Vp9FilterKernels = new Array8[][] { SubPelFilters8, SubPelFilters8Lp, SubPelFilters8S, BilinearFilters }; // Scan private static readonly short[] DefaultScan4X4 = new short[] { 0, 4, 1, 5, 8, 2, 12, 9, 3, 6, 13, 10, 7, 14, 11, 15, }; private static readonly short[] ColScan4X4 = new short[] { 0, 4, 8, 1, 12, 5, 9, 2, 13, 6, 10, 3, 7, 14, 11, 15, }; private static readonly short[] RowScan4X4 = new short[] { 0, 1, 4, 2, 5, 3, 6, 8, 9, 7, 12, 10, 13, 11, 14, 15, }; private static readonly short[] DefaultScan8X8 = new short[] { 0, 8, 1, 16, 9, 2, 17, 24, 10, 3, 18, 25, 32, 11, 4, 26, 33, 19, 40, 12, 34, 27, 5, 41, 20, 48, 13, 35, 42, 28, 21, 6, 49, 56, 36, 43, 29, 7, 14, 50, 57, 44, 22, 37, 15, 51, 58, 30, 45, 23, 52, 59, 38, 31, 60, 53, 46, 39, 61, 54, 47, 62, 55, 63, }; private static readonly short[] ColScan8X8 = new short[] { 0, 8, 16, 1, 24, 9, 32, 17, 2, 40, 25, 10, 33, 18, 48, 3, 26, 41, 11, 56, 19, 34, 4, 49, 27, 42, 12, 35, 20, 57, 50, 28, 5, 43, 13, 36, 58, 51, 21, 44, 6, 29, 59, 37, 14, 52, 22, 7, 45, 60, 30, 15, 38, 53, 23, 46, 31, 61, 39, 54, 47, 62, 55, 63, }; private static readonly short[] RowScan8X8 = new short[] { 0, 1, 2, 8, 9, 3, 16, 10, 4, 17, 11, 24, 5, 18, 25, 12, 19, 26, 32, 6, 13, 20, 33, 27, 7, 34, 40, 21, 28, 41, 14, 35, 48, 42, 29, 36, 49, 22, 43, 15, 56, 37, 50, 44, 30, 57, 23, 51, 58, 45, 38, 52, 31, 59, 53, 46, 60, 39, 61, 47, 54, 55, 62, 63, }; private static readonly short[] DefaultScan16X16 = new short[] { 0, 16, 1, 32, 17, 2, 48, 33, 18, 3, 64, 34, 49, 19, 65, 80, 50, 4, 35, 66, 20, 81, 96, 51, 5, 36, 82, 97, 67, 112, 21, 52, 98, 37, 83, 113, 6, 68, 128, 53, 22, 99, 114, 84, 7, 129, 38, 69, 100, 115, 144, 130, 85, 54, 23, 8, 145, 39, 70, 116, 101, 131, 160, 146, 55, 86, 24, 71, 132, 117, 161, 40, 9, 102, 147, 176, 162, 87, 56, 25, 133, 118, 177, 148, 72, 103, 41, 163, 10, 192, 178, 88, 57, 134, 149, 119, 26, 164, 73, 104, 193, 42, 179, 208, 11, 135, 89, 165, 120, 150, 58, 194, 180, 27, 74, 209, 105, 151, 136, 43, 90, 224, 166, 195, 181, 121, 210, 59, 12, 152, 106, 167, 196, 75, 137, 225, 211, 240, 182, 122, 91, 28, 197, 13, 226, 168, 183, 153, 44, 212, 138, 107, 241, 60, 29, 123, 198, 184, 227, 169, 242, 76, 213, 154, 45, 92, 14, 199, 139, 61, 228, 214, 170, 185, 243, 108, 77, 155, 30, 15, 200, 229, 124, 215, 244, 93, 46, 186, 171, 201, 109, 140, 230, 62, 216, 245, 31, 125, 78, 156, 231, 47, 187, 202, 217, 94, 246, 141, 63, 232, 172, 110, 247, 157, 79, 218, 203, 126, 233, 188, 248, 95, 173, 142, 219, 111, 249, 234, 158, 127, 189, 204, 250, 235, 143, 174, 220, 205, 159, 251, 190, 221, 175, 236, 237, 191, 206, 252, 222, 253, 207, 238, 223, 254, 239, 255, }; private static readonly short[] ColScan16X16 = new short[] { 0, 16, 32, 48, 1, 64, 17, 80, 33, 96, 49, 2, 65, 112, 18, 81, 34, 128, 50, 97, 3, 66, 144, 19, 113, 35, 82, 160, 98, 51, 129, 4, 67, 176, 20, 114, 145, 83, 36, 99, 130, 52, 192, 5, 161, 68, 115, 21, 146, 84, 208, 177, 37, 131, 100, 53, 162, 224, 69, 6, 116, 193, 147, 85, 22, 240, 132, 38, 178, 101, 163, 54, 209, 117, 70, 7, 148, 194, 86, 179, 225, 23, 133, 39, 164, 8, 102, 210, 241, 55, 195, 118, 149, 71, 180, 24, 87, 226, 134, 165, 211, 40, 103, 56, 72, 150, 196, 242, 119, 9, 181, 227, 88, 166, 25, 135, 41, 104, 212, 57, 151, 197, 120, 73, 243, 182, 136, 167, 213, 89, 10, 228, 105, 152, 198, 26, 42, 121, 183, 244, 168, 58, 137, 229, 74, 214, 90, 153, 199, 184, 11, 106, 245, 27, 122, 230, 169, 43, 215, 59, 200, 138, 185, 246, 75, 12, 91, 154, 216, 231, 107, 28, 44, 201, 123, 170, 60, 247, 232, 76, 139, 13, 92, 217, 186, 248, 155, 108, 29, 124, 45, 202, 233, 171, 61, 14, 77, 140, 15, 249, 93, 30, 187, 156, 218, 46, 109, 125, 62, 172, 78, 203, 31, 141, 234, 94, 47, 188, 63, 157, 110, 250, 219, 79, 126, 204, 173, 142, 95, 189, 111, 235, 158, 220, 251, 127, 174, 143, 205, 236, 159, 190, 221, 252, 175, 206, 237, 191, 253, 222, 238, 207, 254, 223, 239, 255, }; private static readonly short[] RowScan16X16 = new short[] { 0, 1, 2, 16, 3, 17, 4, 18, 32, 5, 33, 19, 6, 34, 48, 20, 49, 7, 35, 21, 50, 64, 8, 36, 65, 22, 51, 37, 80, 9, 66, 52, 23, 38, 81, 67, 10, 53, 24, 82, 68, 96, 39, 11, 54, 83, 97, 69, 25, 98, 84, 40, 112, 55, 12, 70, 99, 113, 85, 26, 41, 56, 114, 100, 13, 71, 128, 86, 27, 115, 101, 129, 42, 57, 72, 116, 14, 87, 130, 102, 144, 73, 131, 117, 28, 58, 15, 88, 43, 145, 103, 132, 146, 118, 74, 160, 89, 133, 104, 29, 59, 147, 119, 44, 161, 148, 90, 105, 134, 162, 120, 176, 75, 135, 149, 30, 60, 163, 177, 45, 121, 91, 106, 164, 178, 150, 192, 136, 165, 179, 31, 151, 193, 76, 122, 61, 137, 194, 107, 152, 180, 208, 46, 166, 167, 195, 92, 181, 138, 209, 123, 153, 224, 196, 77, 168, 210, 182, 240, 108, 197, 62, 154, 225, 183, 169, 211, 47, 139, 93, 184, 226, 212, 241, 198, 170, 124, 155, 199, 78, 213, 185, 109, 227, 200, 63, 228, 242, 140, 214, 171, 186, 156, 229, 243, 125, 94, 201, 244, 215, 216, 230, 141, 187, 202, 79, 172, 110, 157, 245, 217, 231, 95, 246, 232, 126, 203, 247, 233, 173, 218, 142, 111, 158, 188, 248, 127, 234, 219, 249, 189, 204, 143, 174, 159, 250, 235, 205, 220, 175, 190, 251, 221, 191, 206, 236, 207, 237, 252, 222, 253, 223, 238, 239, 254, 255, }; private static readonly short[] DefaultScan32X32 = new short[] { 0, 32, 1, 64, 33, 2, 96, 65, 34, 128, 3, 97, 66, 160, 129, 35, 98, 4, 67, 130, 161, 192, 36, 99, 224, 5, 162, 193, 68, 131, 37, 100, 225, 194, 256, 163, 69, 132, 6, 226, 257, 288, 195, 101, 164, 38, 258, 7, 227, 289, 133, 320, 70, 196, 165, 290, 259, 228, 39, 321, 102, 352, 8, 197, 71, 134, 322, 291, 260, 353, 384, 229, 166, 103, 40, 354, 323, 292, 135, 385, 198, 261, 72, 9, 416, 167, 386, 355, 230, 324, 104, 293, 41, 417, 199, 136, 262, 387, 448, 325, 356, 10, 73, 418, 231, 168, 449, 294, 388, 105, 419, 263, 42, 200, 357, 450, 137, 480, 74, 326, 232, 11, 389, 169, 295, 420, 106, 451, 481, 358, 264, 327, 201, 43, 138, 512, 482, 390, 296, 233, 170, 421, 75, 452, 359, 12, 513, 265, 483, 328, 107, 202, 514, 544, 422, 391, 453, 139, 44, 234, 484, 297, 360, 171, 76, 515, 545, 266, 329, 454, 13, 423, 203, 108, 546, 485, 576, 298, 235, 140, 361, 330, 172, 547, 45, 455, 267, 577, 486, 77, 204, 362, 608, 14, 299, 578, 109, 236, 487, 609, 331, 141, 579, 46, 15, 173, 610, 363, 78, 205, 16, 110, 237, 611, 142, 47, 174, 79, 206, 17, 111, 238, 48, 143, 80, 175, 112, 207, 49, 18, 239, 81, 113, 19, 50, 82, 114, 51, 83, 115, 640, 516, 392, 268, 144, 20, 672, 641, 548, 517, 424, 393, 300, 269, 176, 145, 52, 21, 704, 673, 642, 580, 549, 518, 456, 425, 394, 332, 301, 270, 208, 177, 146, 84, 53, 22, 736, 705, 674, 643, 612, 581, 550, 519, 488, 457, 426, 395, 364, 333, 302, 271, 240, 209, 178, 147, 116, 85, 54, 23, 737, 706, 675, 613, 582, 551, 489, 458, 427, 365, 334, 303, 241, 210, 179, 117, 86, 55, 738, 707, 614, 583, 490, 459, 366, 335, 242, 211, 118, 87, 739, 615, 491, 367, 243, 119, 768, 644, 520, 396, 272, 148, 24, 800, 769, 676, 645, 552, 521, 428, 397, 304, 273, 180, 149, 56, 25, 832, 801, 770, 708, 677, 646, 584, 553, 522, 460, 429, 398, 336, 305, 274, 212, 181, 150, 88, 57, 26, 864, 833, 802, 771, 740, 709, 678, 647, 616, 585, 554, 523, 492, 461, 430, 399, 368, 337, 306, 275, 244, 213, 182, 151, 120, 89, 58, 27, 865, 834, 803, 741, 710, 679, 617, 586, 555, 493, 462, 431, 369, 338, 307, 245, 214, 183, 121, 90, 59, 866, 835, 742, 711, 618, 587, 494, 463, 370, 339, 246, 215, 122, 91, 867, 743, 619, 495, 371, 247, 123, 896, 772, 648, 524, 400, 276, 152, 28, 928, 897, 804, 773, 680, 649, 556, 525, 432, 401, 308, 277, 184, 153, 60, 29, 960, 929, 898, 836, 805, 774, 712, 681, 650, 588, 557, 526, 464, 433, 402, 340, 309, 278, 216, 185, 154, 92, 61, 30, 992, 961, 930, 899, 868, 837, 806, 775, 744, 713, 682, 651, 620, 589, 558, 527, 496, 465, 434, 403, 372, 341, 310, 279, 248, 217, 186, 155, 124, 93, 62, 31, 993, 962, 931, 869, 838, 807, 745, 714, 683, 621, 590, 559, 497, 466, 435, 373, 342, 311, 249, 218, 187, 125, 94, 63, 994, 963, 870, 839, 746, 715, 622, 591, 498, 467, 374, 343, 250, 219, 126, 95, 995, 871, 747, 623, 499, 375, 251, 127, 900, 776, 652, 528, 404, 280, 156, 932, 901, 808, 777, 684, 653, 560, 529, 436, 405, 312, 281, 188, 157, 964, 933, 902, 840, 809, 778, 716, 685, 654, 592, 561, 530, 468, 437, 406, 344, 313, 282, 220, 189, 158, 996, 965, 934, 903, 872, 841, 810, 779, 748, 717, 686, 655, 624, 593, 562, 531, 500, 469, 438, 407, 376, 345, 314, 283, 252, 221, 190, 159, 997, 966, 935, 873, 842, 811, 749, 718, 687, 625, 594, 563, 501, 470, 439, 377, 346, 315, 253, 222, 191, 998, 967, 874, 843, 750, 719, 626, 595, 502, 471, 378, 347, 254, 223, 999, 875, 751, 627, 503, 379, 255, 904, 780, 656, 532, 408, 284, 936, 905, 812, 781, 688, 657, 564, 533, 440, 409, 316, 285, 968, 937, 906, 844, 813, 782, 720, 689, 658, 596, 565, 534, 472, 441, 410, 348, 317, 286, 1000, 969, 938, 907, 876, 845, 814, 783, 752, 721, 690, 659, 628, 597, 566, 535, 504, 473, 442, 411, 380, 349, 318, 287, 1001, 970, 939, 877, 846, 815, 753, 722, 691, 629, 598, 567, 505, 474, 443, 381, 350, 319, 1002, 971, 878, 847, 754, 723, 630, 599, 506, 475, 382, 351, 1003, 879, 755, 631, 507, 383, 908, 784, 660, 536, 412, 940, 909, 816, 785, 692, 661, 568, 537, 444, 413, 972, 941, 910, 848, 817, 786, 724, 693, 662, 600, 569, 538, 476, 445, 414, 1004, 973, 942, 911, 880, 849, 818, 787, 756, 725, 694, 663, 632, 601, 570, 539, 508, 477, 446, 415, 1005, 974, 943, 881, 850, 819, 757, 726, 695, 633, 602, 571, 509, 478, 447, 1006, 975, 882, 851, 758, 727, 634, 603, 510, 479, 1007, 883, 759, 635, 511, 912, 788, 664, 540, 944, 913, 820, 789, 696, 665, 572, 541, 976, 945, 914, 852, 821, 790, 728, 697, 666, 604, 573, 542, 1008, 977, 946, 915, 884, 853, 822, 791, 760, 729, 698, 667, 636, 605, 574, 543, 1009, 978, 947, 885, 854, 823, 761, 730, 699, 637, 606, 575, 1010, 979, 886, 855, 762, 731, 638, 607, 1011, 887, 763, 639, 916, 792, 668, 948, 917, 824, 793, 700, 669, 980, 949, 918, 856, 825, 794, 732, 701, 670, 1012, 981, 950, 919, 888, 857, 826, 795, 764, 733, 702, 671, 1013, 982, 951, 889, 858, 827, 765, 734, 703, 1014, 983, 890, 859, 766, 735, 1015, 891, 767, 920, 796, 952, 921, 828, 797, 984, 953, 922, 860, 829, 798, 1016, 985, 954, 923, 892, 861, 830, 799, 1017, 986, 955, 893, 862, 831, 1018, 987, 894, 863, 1019, 895, 924, 956, 925, 988, 957, 926, 1020, 989, 958, 927, 1021, 990, 959, 1022, 991, 1023, }; // Neighborhood 2-tuples for various scans and blocksizes, // in {top, left} order for each position in corresponding scan order. private static readonly short[] DefaultScan4X4Neighbors = new short[] { 0, 0, 0, 0, 0, 0, 1, 4, 4, 4, 1, 1, 8, 8, 5, 8, 2, 2, 2, 5, 9, 12, 6, 9, 3, 6, 10, 13, 7, 10, 11, 14, 0, 0, }; private static readonly short[] ColScan4X4Neighbors = new short[] { 0, 0, 0, 0, 4, 4, 0, 0, 8, 8, 1, 1, 5, 5, 1, 1, 9, 9, 2, 2, 6, 6, 2, 2, 3, 3, 10, 10, 7, 7, 11, 11, 0, 0, }; private static readonly short[] RowScan4X4Neighbors = new short[] { 0, 0, 0, 0, 0, 0, 1, 1, 4, 4, 2, 2, 5, 5, 4, 4, 8, 8, 6, 6, 8, 8, 9, 9, 12, 12, 10, 10, 13, 13, 14, 14, 0, 0, }; private static readonly short[] ColScan8X8Neighbors = new short[] { 0, 0, 0, 0, 8, 8, 0, 0, 16, 16, 1, 1, 24, 24, 9, 9, 1, 1, 32, 32, 17, 17, 2, 2, 25, 25, 10, 10, 40, 40, 2, 2, 18, 18, 33, 33, 3, 3, 48, 48, 11, 11, 26, 26, 3, 3, 41, 41, 19, 19, 34, 34, 4, 4, 27, 27, 12, 12, 49, 49, 42, 42, 20, 20, 4, 4, 35, 35, 5, 5, 28, 28, 50, 50, 43, 43, 13, 13, 36, 36, 5, 5, 21, 21, 51, 51, 29, 29, 6, 6, 44, 44, 14, 14, 6, 6, 37, 37, 52, 52, 22, 22, 7, 7, 30, 30, 45, 45, 15, 15, 38, 38, 23, 23, 53, 53, 31, 31, 46, 46, 39, 39, 54, 54, 47, 47, 55, 55, 0, 0, }; private static readonly short[] RowScan8X8Neighbors = new short[] { 0, 0, 0, 0, 1, 1, 0, 0, 8, 8, 2, 2, 8, 8, 9, 9, 3, 3, 16, 16, 10, 10, 16, 16, 4, 4, 17, 17, 24, 24, 11, 11, 18, 18, 25, 25, 24, 24, 5, 5, 12, 12, 19, 19, 32, 32, 26, 26, 6, 6, 33, 33, 32, 32, 20, 20, 27, 27, 40, 40, 13, 13, 34, 34, 40, 40, 41, 41, 28, 28, 35, 35, 48, 48, 21, 21, 42, 42, 14, 14, 48, 48, 36, 36, 49, 49, 43, 43, 29, 29, 56, 56, 22, 22, 50, 50, 57, 57, 44, 44, 37, 37, 51, 51, 30, 30, 58, 58, 52, 52, 45, 45, 59, 59, 38, 38, 60, 60, 46, 46, 53, 53, 54, 54, 61, 61, 62, 62, 0, 0, }; private static readonly short[] DefaultScan8X8Neighbors = new short[] { 0, 0, 0, 0, 0, 0, 8, 8, 1, 8, 1, 1, 9, 16, 16, 16, 2, 9, 2, 2, 10, 17, 17, 24, 24, 24, 3, 10, 3, 3, 18, 25, 25, 32, 11, 18, 32, 32, 4, 11, 26, 33, 19, 26, 4, 4, 33, 40, 12, 19, 40, 40, 5, 12, 27, 34, 34, 41, 20, 27, 13, 20, 5, 5, 41, 48, 48, 48, 28, 35, 35, 42, 21, 28, 6, 6, 6, 13, 42, 49, 49, 56, 36, 43, 14, 21, 29, 36, 7, 14, 43, 50, 50, 57, 22, 29, 37, 44, 15, 22, 44, 51, 51, 58, 30, 37, 23, 30, 52, 59, 45, 52, 38, 45, 31, 38, 53, 60, 46, 53, 39, 46, 54, 61, 47, 54, 55, 62, 0, 0, }; private static readonly short[] ColScan16X16Neighbors = new short[] { 0, 0, 0, 0, 16, 16, 32, 32, 0, 0, 48, 48, 1, 1, 64, 64, 17, 17, 80, 80, 33, 33, 1, 1, 49, 49, 96, 96, 2, 2, 65, 65, 18, 18, 112, 112, 34, 34, 81, 81, 2, 2, 50, 50, 128, 128, 3, 3, 97, 97, 19, 19, 66, 66, 144, 144, 82, 82, 35, 35, 113, 113, 3, 3, 51, 51, 160, 160, 4, 4, 98, 98, 129, 129, 67, 67, 20, 20, 83, 83, 114, 114, 36, 36, 176, 176, 4, 4, 145, 145, 52, 52, 99, 99, 5, 5, 130, 130, 68, 68, 192, 192, 161, 161, 21, 21, 115, 115, 84, 84, 37, 37, 146, 146, 208, 208, 53, 53, 5, 5, 100, 100, 177, 177, 131, 131, 69, 69, 6, 6, 224, 224, 116, 116, 22, 22, 162, 162, 85, 85, 147, 147, 38, 38, 193, 193, 101, 101, 54, 54, 6, 6, 132, 132, 178, 178, 70, 70, 163, 163, 209, 209, 7, 7, 117, 117, 23, 23, 148, 148, 7, 7, 86, 86, 194, 194, 225, 225, 39, 39, 179, 179, 102, 102, 133, 133, 55, 55, 164, 164, 8, 8, 71, 71, 210, 210, 118, 118, 149, 149, 195, 195, 24, 24, 87, 87, 40, 40, 56, 56, 134, 134, 180, 180, 226, 226, 103, 103, 8, 8, 165, 165, 211, 211, 72, 72, 150, 150, 9, 9, 119, 119, 25, 25, 88, 88, 196, 196, 41, 41, 135, 135, 181, 181, 104, 104, 57, 57, 227, 227, 166, 166, 120, 120, 151, 151, 197, 197, 73, 73, 9, 9, 212, 212, 89, 89, 136, 136, 182, 182, 10, 10, 26, 26, 105, 105, 167, 167, 228, 228, 152, 152, 42, 42, 121, 121, 213, 213, 58, 58, 198, 198, 74, 74, 137, 137, 183, 183, 168, 168, 10, 10, 90, 90, 229, 229, 11, 11, 106, 106, 214, 214, 153, 153, 27, 27, 199, 199, 43, 43, 184, 184, 122, 122, 169, 169, 230, 230, 59, 59, 11, 11, 75, 75, 138, 138, 200, 200, 215, 215, 91, 91, 12, 12, 28, 28, 185, 185, 107, 107, 154, 154, 44, 44, 231, 231, 216, 216, 60, 60, 123, 123, 12, 12, 76, 76, 201, 201, 170, 170, 232, 232, 139, 139, 92, 92, 13, 13, 108, 108, 29, 29, 186, 186, 217, 217, 155, 155, 45, 45, 13, 13, 61, 61, 124, 124, 14, 14, 233, 233, 77, 77, 14, 14, 171, 171, 140, 140, 202, 202, 30, 30, 93, 93, 109, 109, 46, 46, 156, 156, 62, 62, 187, 187, 15, 15, 125, 125, 218, 218, 78, 78, 31, 31, 172, 172, 47, 47, 141, 141, 94, 94, 234, 234, 203, 203, 63, 63, 110, 110, 188, 188, 157, 157, 126, 126, 79, 79, 173, 173, 95, 95, 219, 219, 142, 142, 204, 204, 235, 235, 111, 111, 158, 158, 127, 127, 189, 189, 220, 220, 143, 143, 174, 174, 205, 205, 236, 236, 159, 159, 190, 190, 221, 221, 175, 175, 237, 237, 206, 206, 222, 222, 191, 191, 238, 238, 207, 207, 223, 223, 239, 239, 0, 0, }; private static readonly short[] RowScan16X16Neighbors = new short[] { 0, 0, 0, 0, 1, 1, 0, 0, 2, 2, 16, 16, 3, 3, 17, 17, 16, 16, 4, 4, 32, 32, 18, 18, 5, 5, 33, 33, 32, 32, 19, 19, 48, 48, 6, 6, 34, 34, 20, 20, 49, 49, 48, 48, 7, 7, 35, 35, 64, 64, 21, 21, 50, 50, 36, 36, 64, 64, 8, 8, 65, 65, 51, 51, 22, 22, 37, 37, 80, 80, 66, 66, 9, 9, 52, 52, 23, 23, 81, 81, 67, 67, 80, 80, 38, 38, 10, 10, 53, 53, 82, 82, 96, 96, 68, 68, 24, 24, 97, 97, 83, 83, 39, 39, 96, 96, 54, 54, 11, 11, 69, 69, 98, 98, 112, 112, 84, 84, 25, 25, 40, 40, 55, 55, 113, 113, 99, 99, 12, 12, 70, 70, 112, 112, 85, 85, 26, 26, 114, 114, 100, 100, 128, 128, 41, 41, 56, 56, 71, 71, 115, 115, 13, 13, 86, 86, 129, 129, 101, 101, 128, 128, 72, 72, 130, 130, 116, 116, 27, 27, 57, 57, 14, 14, 87, 87, 42, 42, 144, 144, 102, 102, 131, 131, 145, 145, 117, 117, 73, 73, 144, 144, 88, 88, 132, 132, 103, 103, 28, 28, 58, 58, 146, 146, 118, 118, 43, 43, 160, 160, 147, 147, 89, 89, 104, 104, 133, 133, 161, 161, 119, 119, 160, 160, 74, 74, 134, 134, 148, 148, 29, 29, 59, 59, 162, 162, 176, 176, 44, 44, 120, 120, 90, 90, 105, 105, 163, 163, 177, 177, 149, 149, 176, 176, 135, 135, 164, 164, 178, 178, 30, 30, 150, 150, 192, 192, 75, 75, 121, 121, 60, 60, 136, 136, 193, 193, 106, 106, 151, 151, 179, 179, 192, 192, 45, 45, 165, 165, 166, 166, 194, 194, 91, 91, 180, 180, 137, 137, 208, 208, 122, 122, 152, 152, 208, 208, 195, 195, 76, 76, 167, 167, 209, 209, 181, 181, 224, 224, 107, 107, 196, 196, 61, 61, 153, 153, 224, 224, 182, 182, 168, 168, 210, 210, 46, 46, 138, 138, 92, 92, 183, 183, 225, 225, 211, 211, 240, 240, 197, 197, 169, 169, 123, 123, 154, 154, 198, 198, 77, 77, 212, 212, 184, 184, 108, 108, 226, 226, 199, 199, 62, 62, 227, 227, 241, 241, 139, 139, 213, 213, 170, 170, 185, 185, 155, 155, 228, 228, 242, 242, 124, 124, 93, 93, 200, 200, 243, 243, 214, 214, 215, 215, 229, 229, 140, 140, 186, 186, 201, 201, 78, 78, 171, 171, 109, 109, 156, 156, 244, 244, 216, 216, 230, 230, 94, 94, 245, 245, 231, 231, 125, 125, 202, 202, 246, 246, 232, 232, 172, 172, 217, 217, 141, 141, 110, 110, 157, 157, 187, 187, 247, 247, 126, 126, 233, 233, 218, 218, 248, 248, 188, 188, 203, 203, 142, 142, 173, 173, 158, 158, 249, 249, 234, 234, 204, 204, 219, 219, 174, 174, 189, 189, 250, 250, 220, 220, 190, 190, 205, 205, 235, 235, 206, 206, 236, 236, 251, 251, 221, 221, 252, 252, 222, 222, 237, 237, 238, 238, 253, 253, 254, 254, 0, 0, }; private static readonly short[] DefaultScan16X16Neighbors = new short[] { 0, 0, 0, 0, 0, 0, 16, 16, 1, 16, 1, 1, 32, 32, 17, 32, 2, 17, 2, 2, 48, 48, 18, 33, 33, 48, 3, 18, 49, 64, 64, 64, 34, 49, 3, 3, 19, 34, 50, 65, 4, 19, 65, 80, 80, 80, 35, 50, 4, 4, 20, 35, 66, 81, 81, 96, 51, 66, 96, 96, 5, 20, 36, 51, 82, 97, 21, 36, 67, 82, 97, 112, 5, 5, 52, 67, 112, 112, 37, 52, 6, 21, 83, 98, 98, 113, 68, 83, 6, 6, 113, 128, 22, 37, 53, 68, 84, 99, 99, 114, 128, 128, 114, 129, 69, 84, 38, 53, 7, 22, 7, 7, 129, 144, 23, 38, 54, 69, 100, 115, 85, 100, 115, 130, 144, 144, 130, 145, 39, 54, 70, 85, 8, 23, 55, 70, 116, 131, 101, 116, 145, 160, 24, 39, 8, 8, 86, 101, 131, 146, 160, 160, 146, 161, 71, 86, 40, 55, 9, 24, 117, 132, 102, 117, 161, 176, 132, 147, 56, 71, 87, 102, 25, 40, 147, 162, 9, 9, 176, 176, 162, 177, 72, 87, 41, 56, 118, 133, 133, 148, 103, 118, 10, 25, 148, 163, 57, 72, 88, 103, 177, 192, 26, 41, 163, 178, 192, 192, 10, 10, 119, 134, 73, 88, 149, 164, 104, 119, 134, 149, 42, 57, 178, 193, 164, 179, 11, 26, 58, 73, 193, 208, 89, 104, 135, 150, 120, 135, 27, 42, 74, 89, 208, 208, 150, 165, 179, 194, 165, 180, 105, 120, 194, 209, 43, 58, 11, 11, 136, 151, 90, 105, 151, 166, 180, 195, 59, 74, 121, 136, 209, 224, 195, 210, 224, 224, 166, 181, 106, 121, 75, 90, 12, 27, 181, 196, 12, 12, 210, 225, 152, 167, 167, 182, 137, 152, 28, 43, 196, 211, 122, 137, 91, 106, 225, 240, 44, 59, 13, 28, 107, 122, 182, 197, 168, 183, 211, 226, 153, 168, 226, 241, 60, 75, 197, 212, 138, 153, 29, 44, 76, 91, 13, 13, 183, 198, 123, 138, 45, 60, 212, 227, 198, 213, 154, 169, 169, 184, 227, 242, 92, 107, 61, 76, 139, 154, 14, 29, 14, 14, 184, 199, 213, 228, 108, 123, 199, 214, 228, 243, 77, 92, 30, 45, 170, 185, 155, 170, 185, 200, 93, 108, 124, 139, 214, 229, 46, 61, 200, 215, 229, 244, 15, 30, 109, 124, 62, 77, 140, 155, 215, 230, 31, 46, 171, 186, 186, 201, 201, 216, 78, 93, 230, 245, 125, 140, 47, 62, 216, 231, 156, 171, 94, 109, 231, 246, 141, 156, 63, 78, 202, 217, 187, 202, 110, 125, 217, 232, 172, 187, 232, 247, 79, 94, 157, 172, 126, 141, 203, 218, 95, 110, 233, 248, 218, 233, 142, 157, 111, 126, 173, 188, 188, 203, 234, 249, 219, 234, 127, 142, 158, 173, 204, 219, 189, 204, 143, 158, 235, 250, 174, 189, 205, 220, 159, 174, 220, 235, 221, 236, 175, 190, 190, 205, 236, 251, 206, 221, 237, 252, 191, 206, 222, 237, 207, 222, 238, 253, 223, 238, 239, 254, 0, 0, }; private static readonly short[] DefaultScan32X32Neighbors = new short[] { 0, 0, 0, 0, 0, 0, 32, 32, 1, 32, 1, 1, 64, 64, 33, 64, 2, 33, 96, 96, 2, 2, 65, 96, 34, 65, 128, 128, 97, 128, 3, 34, 66, 97, 3, 3, 35, 66, 98, 129, 129, 160, 160, 160, 4, 35, 67, 98, 192, 192, 4, 4, 130, 161, 161, 192, 36, 67, 99, 130, 5, 36, 68, 99, 193, 224, 162, 193, 224, 224, 131, 162, 37, 68, 100, 131, 5, 5, 194, 225, 225, 256, 256, 256, 163, 194, 69, 100, 132, 163, 6, 37, 226, 257, 6, 6, 195, 226, 257, 288, 101, 132, 288, 288, 38, 69, 164, 195, 133, 164, 258, 289, 227, 258, 196, 227, 7, 38, 289, 320, 70, 101, 320, 320, 7, 7, 165, 196, 39, 70, 102, 133, 290, 321, 259, 290, 228, 259, 321, 352, 352, 352, 197, 228, 134, 165, 71, 102, 8, 39, 322, 353, 291, 322, 260, 291, 103, 134, 353, 384, 166, 197, 229, 260, 40, 71, 8, 8, 384, 384, 135, 166, 354, 385, 323, 354, 198, 229, 292, 323, 72, 103, 261, 292, 9, 40, 385, 416, 167, 198, 104, 135, 230, 261, 355, 386, 416, 416, 293, 324, 324, 355, 9, 9, 41, 72, 386, 417, 199, 230, 136, 167, 417, 448, 262, 293, 356, 387, 73, 104, 387, 418, 231, 262, 10, 41, 168, 199, 325, 356, 418, 449, 105, 136, 448, 448, 42, 73, 294, 325, 200, 231, 10, 10, 357, 388, 137, 168, 263, 294, 388, 419, 74, 105, 419, 450, 449, 480, 326, 357, 232, 263, 295, 326, 169, 200, 11, 42, 106, 137, 480, 480, 450, 481, 358, 389, 264, 295, 201, 232, 138, 169, 389, 420, 43, 74, 420, 451, 327, 358, 11, 11, 481, 512, 233, 264, 451, 482, 296, 327, 75, 106, 170, 201, 482, 513, 512, 512, 390, 421, 359, 390, 421, 452, 107, 138, 12, 43, 202, 233, 452, 483, 265, 296, 328, 359, 139, 170, 44, 75, 483, 514, 513, 544, 234, 265, 297, 328, 422, 453, 12, 12, 391, 422, 171, 202, 76, 107, 514, 545, 453, 484, 544, 544, 266, 297, 203, 234, 108, 139, 329, 360, 298, 329, 140, 171, 515, 546, 13, 44, 423, 454, 235, 266, 545, 576, 454, 485, 45, 76, 172, 203, 330, 361, 576, 576, 13, 13, 267, 298, 546, 577, 77, 108, 204, 235, 455, 486, 577, 608, 299, 330, 109, 140, 547, 578, 14, 45, 14, 14, 141, 172, 578, 609, 331, 362, 46, 77, 173, 204, 15, 15, 78, 109, 205, 236, 579, 610, 110, 141, 15, 46, 142, 173, 47, 78, 174, 205, 16, 16, 79, 110, 206, 237, 16, 47, 111, 142, 48, 79, 143, 174, 80, 111, 175, 206, 17, 48, 17, 17, 207, 238, 49, 80, 81, 112, 18, 18, 18, 49, 50, 81, 82, 113, 19, 50, 51, 82, 83, 114, 608, 608, 484, 515, 360, 391, 236, 267, 112, 143, 19, 19, 640, 640, 609, 640, 516, 547, 485, 516, 392, 423, 361, 392, 268, 299, 237, 268, 144, 175, 113, 144, 20, 51, 20, 20, 672, 672, 641, 672, 610, 641, 548, 579, 517, 548, 486, 517, 424, 455, 393, 424, 362, 393, 300, 331, 269, 300, 238, 269, 176, 207, 145, 176, 114, 145, 52, 83, 21, 52, 21, 21, 704, 704, 673, 704, 642, 673, 611, 642, 580, 611, 549, 580, 518, 549, 487, 518, 456, 487, 425, 456, 394, 425, 363, 394, 332, 363, 301, 332, 270, 301, 239, 270, 208, 239, 177, 208, 146, 177, 115, 146, 84, 115, 53, 84, 22, 53, 22, 22, 705, 736, 674, 705, 643, 674, 581, 612, 550, 581, 519, 550, 457, 488, 426, 457, 395, 426, 333, 364, 302, 333, 271, 302, 209, 240, 178, 209, 147, 178, 85, 116, 54, 85, 23, 54, 706, 737, 675, 706, 582, 613, 551, 582, 458, 489, 427, 458, 334, 365, 303, 334, 210, 241, 179, 210, 86, 117, 55, 86, 707, 738, 583, 614, 459, 490, 335, 366, 211, 242, 87, 118, 736, 736, 612, 643, 488, 519, 364, 395, 240, 271, 116, 147, 23, 23, 768, 768, 737, 768, 644, 675, 613, 644, 520, 551, 489, 520, 396, 427, 365, 396, 272, 303, 241, 272, 148, 179, 117, 148, 24, 55, 24, 24, 800, 800, 769, 800, 738, 769, 676, 707, 645, 676, 614, 645, 552, 583, 521, 552, 490, 521, 428, 459, 397, 428, 366, 397, 304, 335, 273, 304, 242, 273, 180, 211, 149, 180, 118, 149, 56, 87, 25, 56, 25, 25, 832, 832, 801, 832, 770, 801, 739, 770, 708, 739, 677, 708, 646, 677, 615, 646, 584, 615, 553, 584, 522, 553, 491, 522, 460, 491, 429, 460, 398, 429, 367, 398, 336, 367, 305, 336, 274, 305, 243, 274, 212, 243, 181, 212, 150, 181, 119, 150, 88, 119, 57, 88, 26, 57, 26, 26, 833, 864, 802, 833, 771, 802, 709, 740, 678, 709, 647, 678, 585, 616, 554, 585, 523, 554, 461, 492, 430, 461, 399, 430, 337, 368, 306, 337, 275, 306, 213, 244, 182, 213, 151, 182, 89, 120, 58, 89, 27, 58, 834, 865, 803, 834, 710, 741, 679, 710, 586, 617, 555, 586, 462, 493, 431, 462, 338, 369, 307, 338, 214, 245, 183, 214, 90, 121, 59, 90, 835, 866, 711, 742, 587, 618, 463, 494, 339, 370, 215, 246, 91, 122, 864, 864, 740, 771, 616, 647, 492, 523, 368, 399, 244, 275, 120, 151, 27, 27, 896, 896, 865, 896, 772, 803, 741, 772, 648, 679, 617, 648, 524, 555, 493, 524, 400, 431, 369, 400, 276, 307, 245, 276, 152, 183, 121, 152, 28, 59, 28, 28, 928, 928, 897, 928, 866, 897, 804, 835, 773, 804, 742, 773, 680, 711, 649, 680, 618, 649, 556, 587, 525, 556, 494, 525, 432, 463, 401, 432, 370, 401, 308, 339, 277, 308, 246, 277, 184, 215, 153, 184, 122, 153, 60, 91, 29, 60, 29, 29, 960, 960, 929, 960, 898, 929, 867, 898, 836, 867, 805, 836, 774, 805, 743, 774, 712, 743, 681, 712, 650, 681, 619, 650, 588, 619, 557, 588, 526, 557, 495, 526, 464, 495, 433, 464, 402, 433, 371, 402, 340, 371, 309, 340, 278, 309, 247, 278, 216, 247, 185, 216, 154, 185, 123, 154, 92, 123, 61, 92, 30, 61, 30, 30, 961, 992, 930, 961, 899, 930, 837, 868, 806, 837, 775, 806, 713, 744, 682, 713, 651, 682, 589, 620, 558, 589, 527, 558, 465, 496, 434, 465, 403, 434, 341, 372, 310, 341, 279, 310, 217, 248, 186, 217, 155, 186, 93, 124, 62, 93, 31, 62, 962, 993, 931, 962, 838, 869, 807, 838, 714, 745, 683, 714, 590, 621, 559, 590, 466, 497, 435, 466, 342, 373, 311, 342, 218, 249, 187, 218, 94, 125, 63, 94, 963, 994, 839, 870, 715, 746, 591, 622, 467, 498, 343, 374, 219, 250, 95, 126, 868, 899, 744, 775, 620, 651, 496, 527, 372, 403, 248, 279, 124, 155, 900, 931, 869, 900, 776, 807, 745, 776, 652, 683, 621, 652, 528, 559, 497, 528, 404, 435, 373, 404, 280, 311, 249, 280, 156, 187, 125, 156, 932, 963, 901, 932, 870, 901, 808, 839, 777, 808, 746, 777, 684, 715, 653, 684, 622, 653, 560, 591, 529, 560, 498, 529, 436, 467, 405, 436, 374, 405, 312, 343, 281, 312, 250, 281, 188, 219, 157, 188, 126, 157, 964, 995, 933, 964, 902, 933, 871, 902, 840, 871, 809, 840, 778, 809, 747, 778, 716, 747, 685, 716, 654, 685, 623, 654, 592, 623, 561, 592, 530, 561, 499, 530, 468, 499, 437, 468, 406, 437, 375, 406, 344, 375, 313, 344, 282, 313, 251, 282, 220, 251, 189, 220, 158, 189, 127, 158, 965, 996, 934, 965, 903, 934, 841, 872, 810, 841, 779, 810, 717, 748, 686, 717, 655, 686, 593, 624, 562, 593, 531, 562, 469, 500, 438, 469, 407, 438, 345, 376, 314, 345, 283, 314, 221, 252, 190, 221, 159, 190, 966, 997, 935, 966, 842, 873, 811, 842, 718, 749, 687, 718, 594, 625, 563, 594, 470, 501, 439, 470, 346, 377, 315, 346, 222, 253, 191, 222, 967, 998, 843, 874, 719, 750, 595, 626, 471, 502, 347, 378, 223, 254, 872, 903, 748, 779, 624, 655, 500, 531, 376, 407, 252, 283, 904, 935, 873, 904, 780, 811, 749, 780, 656, 687, 625, 656, 532, 563, 501, 532, 408, 439, 377, 408, 284, 315, 253, 284, 936, 967, 905, 936, 874, 905, 812, 843, 781, 812, 750, 781, 688, 719, 657, 688, 626, 657, 564, 595, 533, 564, 502, 533, 440, 471, 409, 440, 378, 409, 316, 347, 285, 316, 254, 285, 968, 999, 937, 968, 906, 937, 875, 906, 844, 875, 813, 844, 782, 813, 751, 782, 720, 751, 689, 720, 658, 689, 627, 658, 596, 627, 565, 596, 534, 565, 503, 534, 472, 503, 441, 472, 410, 441, 379, 410, 348, 379, 317, 348, 286, 317, 255, 286, 969, 1000, 938, 969, 907, 938, 845, 876, 814, 845, 783, 814, 721, 752, 690, 721, 659, 690, 597, 628, 566, 597, 535, 566, 473, 504, 442, 473, 411, 442, 349, 380, 318, 349, 287, 318, 970, 1001, 939, 970, 846, 877, 815, 846, 722, 753, 691, 722, 598, 629, 567, 598, 474, 505, 443, 474, 350, 381, 319, 350, 971, 1002, 847, 878, 723, 754, 599, 630, 475, 506, 351, 382, 876, 907, 752, 783, 628, 659, 504, 535, 380, 411, 908, 939, 877, 908, 784, 815, 753, 784, 660, 691, 629, 660, 536, 567, 505, 536, 412, 443, 381, 412, 940, 971, 909, 940, 878, 909, 816, 847, 785, 816, 754, 785, 692, 723, 661, 692, 630, 661, 568, 599, 537, 568, 506, 537, 444, 475, 413, 444, 382, 413, 972, 1003, 941, 972, 910, 941, 879, 910, 848, 879, 817, 848, 786, 817, 755, 786, 724, 755, 693, 724, 662, 693, 631, 662, 600, 631, 569, 600, 538, 569, 507, 538, 476, 507, 445, 476, 414, 445, 383, 414, 973, 1004, 942, 973, 911, 942, 849, 880, 818, 849, 787, 818, 725, 756, 694, 725, 663, 694, 601, 632, 570, 601, 539, 570, 477, 508, 446, 477, 415, 446, 974, 1005, 943, 974, 850, 881, 819, 850, 726, 757, 695, 726, 602, 633, 571, 602, 478, 509, 447, 478, 975, 1006, 851, 882, 727, 758, 603, 634, 479, 510, 880, 911, 756, 787, 632, 663, 508, 539, 912, 943, 881, 912, 788, 819, 757, 788, 664, 695, 633, 664, 540, 571, 509, 540, 944, 975, 913, 944, 882, 913, 820, 851, 789, 820, 758, 789, 696, 727, 665, 696, 634, 665, 572, 603, 541, 572, 510, 541, 976, 1007, 945, 976, 914, 945, 883, 914, 852, 883, 821, 852, 790, 821, 759, 790, 728, 759, 697, 728, 666, 697, 635, 666, 604, 635, 573, 604, 542, 573, 511, 542, 977, 1008, 946, 977, 915, 946, 853, 884, 822, 853, 791, 822, 729, 760, 698, 729, 667, 698, 605, 636, 574, 605, 543, 574, 978, 1009, 947, 978, 854, 885, 823, 854, 730, 761, 699, 730, 606, 637, 575, 606, 979, 1010, 855, 886, 731, 762, 607, 638, 884, 915, 760, 791, 636, 667, 916, 947, 885, 916, 792, 823, 761, 792, 668, 699, 637, 668, 948, 979, 917, 948, 886, 917, 824, 855, 793, 824, 762, 793, 700, 731, 669, 700, 638, 669, 980, 1011, 949, 980, 918, 949, 887, 918, 856, 887, 825, 856, 794, 825, 763, 794, 732, 763, 701, 732, 670, 701, 639, 670, 981, 1012, 950, 981, 919, 950, 857, 888, 826, 857, 795, 826, 733, 764, 702, 733, 671, 702, 982, 1013, 951, 982, 858, 889, 827, 858, 734, 765, 703, 734, 983, 1014, 859, 890, 735, 766, 888, 919, 764, 795, 920, 951, 889, 920, 796, 827, 765, 796, 952, 983, 921, 952, 890, 921, 828, 859, 797, 828, 766, 797, 984, 1015, 953, 984, 922, 953, 891, 922, 860, 891, 829, 860, 798, 829, 767, 798, 985, 1016, 954, 985, 923, 954, 861, 892, 830, 861, 799, 830, 986, 1017, 955, 986, 862, 893, 831, 862, 987, 1018, 863, 894, 892, 923, 924, 955, 893, 924, 956, 987, 925, 956, 894, 925, 988, 1019, 957, 988, 926, 957, 895, 926, 989, 1020, 958, 989, 927, 958, 990, 1021, 959, 990, 991, 1022, 0, 0, }; private static readonly short[] Vp9DefaultIscan4X4 = new short[] { 0, 2, 5, 8, 1, 3, 9, 12, 4, 7, 11, 14, 6, 10, 13, 15, }; private static readonly short[] Vp9ColIscan4X4 = new short[] { 0, 3, 7, 11, 1, 5, 9, 12, 2, 6, 10, 14, 4, 8, 13, 15, }; private static readonly short[] Vp9RowIscan4X4 = new short[] { 0, 1, 3, 5, 2, 4, 6, 9, 7, 8, 11, 13, 10, 12, 14, 15, }; private static readonly short[] Vp9ColIscan8X8 = new short[] { 0, 3, 8, 15, 22, 32, 40, 47, 1, 5, 11, 18, 26, 34, 44, 51, 2, 7, 13, 20, 28, 38, 46, 54, 4, 10, 16, 24, 31, 41, 50, 56, 6, 12, 21, 27, 35, 43, 52, 58, 9, 17, 25, 33, 39, 48, 55, 60, 14, 23, 30, 37, 45, 53, 59, 62, 19, 29, 36, 42, 49, 57, 61, 63, }; private static readonly short[] Vp9RowIscan8X8 = new short[] { 0, 1, 2, 5, 8, 12, 19, 24, 3, 4, 7, 10, 15, 20, 30, 39, 6, 9, 13, 16, 21, 27, 37, 46, 11, 14, 17, 23, 28, 34, 44, 52, 18, 22, 25, 31, 35, 41, 50, 57, 26, 29, 33, 38, 43, 49, 55, 59, 32, 36, 42, 47, 51, 54, 60, 61, 40, 45, 48, 53, 56, 58, 62, 63, }; private static readonly short[] Vp9DefaultIscan8X8 = new short[] { 0, 2, 5, 9, 14, 22, 31, 37, 1, 4, 8, 13, 19, 26, 38, 44, 3, 6, 10, 17, 24, 30, 42, 49, 7, 11, 15, 21, 29, 36, 47, 53, 12, 16, 20, 27, 34, 43, 52, 57, 18, 23, 28, 35, 41, 48, 56, 60, 25, 32, 39, 45, 50, 55, 59, 62, 33, 40, 46, 51, 54, 58, 61, 63, }; private static readonly short[] Vp9ColIscan16X16 = new short[] { 0, 4, 11, 20, 31, 43, 59, 75, 85, 109, 130, 150, 165, 181, 195, 198, 1, 6, 14, 23, 34, 47, 64, 81, 95, 114, 135, 153, 171, 188, 201, 212, 2, 8, 16, 25, 38, 52, 67, 83, 101, 116, 136, 157, 172, 190, 205, 216, 3, 10, 18, 29, 41, 55, 71, 89, 103, 119, 141, 159, 176, 194, 208, 218, 5, 12, 21, 32, 45, 58, 74, 93, 104, 123, 144, 164, 179, 196, 210, 223, 7, 15, 26, 37, 49, 63, 78, 96, 112, 129, 146, 166, 182, 200, 215, 228, 9, 19, 28, 39, 54, 69, 86, 102, 117, 132, 151, 170, 187, 206, 220, 230, 13, 24, 35, 46, 60, 73, 91, 108, 122, 137, 154, 174, 189, 207, 224, 235, 17, 30, 40, 53, 66, 82, 98, 115, 126, 142, 161, 180, 197, 213, 227, 237, 22, 36, 48, 62, 76, 92, 105, 120, 133, 147, 167, 186, 203, 219, 232, 240, 27, 44, 56, 70, 84, 99, 113, 127, 140, 156, 175, 193, 209, 226, 236, 244, 33, 51, 68, 79, 94, 110, 125, 138, 149, 162, 184, 202, 217, 229, 241, 247, 42, 61, 77, 90, 106, 121, 134, 148, 160, 173, 191, 211, 225, 238, 245, 251, 50, 72, 87, 100, 118, 128, 145, 158, 168, 183, 204, 222, 233, 242, 249, 253, 57, 80, 97, 111, 131, 143, 155, 169, 178, 192, 214, 231, 239, 246, 250, 254, 65, 88, 107, 124, 139, 152, 163, 177, 185, 199, 221, 234, 243, 248, 252, 255, }; private static readonly short[] Vp9RowIscan16X16 = new short[] { 0, 1, 2, 4, 6, 9, 12, 17, 22, 29, 36, 43, 54, 64, 76, 86, 3, 5, 7, 11, 15, 19, 25, 32, 38, 48, 59, 68, 84, 99, 115, 130, 8, 10, 13, 18, 23, 27, 33, 42, 51, 60, 72, 88, 103, 119, 142, 167, 14, 16, 20, 26, 31, 37, 44, 53, 61, 73, 85, 100, 116, 135, 161, 185, 21, 24, 30, 35, 40, 47, 55, 65, 74, 81, 94, 112, 133, 154, 179, 205, 28, 34, 39, 45, 50, 58, 67, 77, 87, 96, 106, 121, 146, 169, 196, 212, 41, 46, 49, 56, 63, 70, 79, 90, 98, 107, 122, 138, 159, 182, 207, 222, 52, 57, 62, 69, 75, 83, 93, 102, 110, 120, 134, 150, 176, 195, 215, 226, 66, 71, 78, 82, 91, 97, 108, 113, 127, 136, 148, 168, 188, 202, 221, 232, 80, 89, 92, 101, 105, 114, 125, 131, 139, 151, 162, 177, 192, 208, 223, 234, 95, 104, 109, 117, 123, 128, 143, 144, 155, 165, 175, 190, 206, 219, 233, 239, 111, 118, 124, 129, 140, 147, 157, 164, 170, 181, 191, 203, 224, 230, 240, 243, 126, 132, 137, 145, 153, 160, 174, 178, 184, 197, 204, 216, 231, 237, 244, 246, 141, 149, 156, 166, 172, 180, 189, 199, 200, 210, 220, 228, 238, 242, 249, 251, 152, 163, 171, 183, 186, 193, 201, 211, 214, 218, 227, 236, 245, 247, 252, 253, 158, 173, 187, 194, 198, 209, 213, 217, 225, 229, 235, 241, 248, 250, 254, 255, }; private static readonly short[] Vp9DefaultIscan16X16 = new short[] { 0, 2, 5, 9, 17, 24, 36, 44, 55, 72, 88, 104, 128, 143, 166, 179, 1, 4, 8, 13, 20, 30, 40, 54, 66, 79, 96, 113, 141, 154, 178, 196, 3, 7, 11, 18, 25, 33, 46, 57, 71, 86, 101, 119, 148, 164, 186, 201, 6, 12, 16, 23, 31, 39, 53, 64, 78, 92, 110, 127, 153, 169, 193, 208, 10, 14, 19, 28, 37, 47, 58, 67, 84, 98, 114, 133, 161, 176, 198, 214, 15, 21, 26, 34, 43, 52, 65, 77, 91, 106, 120, 140, 165, 185, 205, 221, 22, 27, 32, 41, 48, 60, 73, 85, 99, 116, 130, 151, 175, 190, 211, 225, 29, 35, 42, 49, 59, 69, 81, 95, 108, 125, 139, 155, 182, 197, 217, 229, 38, 45, 51, 61, 68, 80, 93, 105, 118, 134, 150, 168, 191, 207, 223, 234, 50, 56, 63, 74, 83, 94, 109, 117, 129, 147, 163, 177, 199, 213, 228, 238, 62, 70, 76, 87, 97, 107, 122, 131, 145, 159, 172, 188, 210, 222, 235, 242, 75, 82, 90, 102, 112, 124, 138, 146, 157, 173, 187, 202, 219, 230, 240, 245, 89, 100, 111, 123, 132, 142, 156, 167, 180, 189, 203, 216, 231, 237, 246, 250, 103, 115, 126, 136, 149, 162, 171, 183, 194, 204, 215, 224, 236, 241, 248, 252, 121, 135, 144, 158, 170, 181, 192, 200, 209, 218, 227, 233, 243, 244, 251, 254, 137, 152, 160, 174, 184, 195, 206, 212, 220, 226, 232, 239, 247, 249, 253, 255, }; private static readonly short[] Vp9DefaultIscan32X32 = new short[] { 0, 2, 5, 10, 17, 25, 38, 47, 62, 83, 101, 121, 145, 170, 193, 204, 210, 219, 229, 233, 245, 257, 275, 299, 342, 356, 377, 405, 455, 471, 495, 527, 1, 4, 8, 15, 22, 30, 45, 58, 74, 92, 112, 133, 158, 184, 203, 215, 222, 228, 234, 237, 256, 274, 298, 317, 355, 376, 404, 426, 470, 494, 526, 551, 3, 7, 12, 18, 28, 36, 52, 64, 82, 102, 118, 142, 164, 189, 208, 217, 224, 231, 235, 238, 273, 297, 316, 329, 375, 403, 425, 440, 493, 525, 550, 567, 6, 11, 16, 23, 31, 43, 60, 73, 90, 109, 126, 150, 173, 196, 211, 220, 226, 232, 236, 239, 296, 315, 328, 335, 402, 424, 439, 447, 524, 549, 566, 575, 9, 14, 19, 29, 37, 50, 65, 78, 95, 116, 134, 157, 179, 201, 214, 223, 244, 255, 272, 295, 341, 354, 374, 401, 454, 469, 492, 523, 582, 596, 617, 645, 13, 20, 26, 35, 44, 54, 72, 85, 105, 123, 140, 163, 182, 205, 216, 225, 254, 271, 294, 314, 353, 373, 400, 423, 468, 491, 522, 548, 595, 616, 644, 666, 21, 27, 33, 42, 53, 63, 80, 94, 113, 132, 151, 172, 190, 209, 218, 227, 270, 293, 313, 327, 372, 399, 422, 438, 490, 521, 547, 565, 615, 643, 665, 680, 24, 32, 39, 48, 57, 71, 88, 104, 120, 139, 159, 178, 197, 212, 221, 230, 292, 312, 326, 334, 398, 421, 437, 446, 520, 546, 564, 574, 642, 664, 679, 687, 34, 40, 46, 56, 68, 81, 96, 111, 130, 147, 167, 186, 243, 253, 269, 291, 340, 352, 371, 397, 453, 467, 489, 519, 581, 594, 614, 641, 693, 705, 723, 747, 41, 49, 55, 67, 77, 91, 107, 124, 138, 161, 177, 194, 252, 268, 290, 311, 351, 370, 396, 420, 466, 488, 518, 545, 593, 613, 640, 663, 704, 722, 746, 765, 51, 59, 66, 76, 89, 99, 119, 131, 149, 168, 181, 200, 267, 289, 310, 325, 369, 395, 419, 436, 487, 517, 544, 563, 612, 639, 662, 678, 721, 745, 764, 777, 61, 69, 75, 87, 100, 114, 129, 144, 162, 180, 191, 207, 288, 309, 324, 333, 394, 418, 435, 445, 516, 543, 562, 573, 638, 661, 677, 686, 744, 763, 776, 783, 70, 79, 86, 97, 108, 122, 137, 155, 242, 251, 266, 287, 339, 350, 368, 393, 452, 465, 486, 515, 580, 592, 611, 637, 692, 703, 720, 743, 788, 798, 813, 833, 84, 93, 103, 110, 125, 141, 154, 171, 250, 265, 286, 308, 349, 367, 392, 417, 464, 485, 514, 542, 591, 610, 636, 660, 702, 719, 742, 762, 797, 812, 832, 848, 98, 106, 115, 127, 143, 156, 169, 185, 264, 285, 307, 323, 366, 391, 416, 434, 484, 513, 541, 561, 609, 635, 659, 676, 718, 741, 761, 775, 811, 831, 847, 858, 117, 128, 136, 148, 160, 175, 188, 198, 284, 306, 322, 332, 390, 415, 433, 444, 512, 540, 560, 572, 634, 658, 675, 685, 740, 760, 774, 782, 830, 846, 857, 863, 135, 146, 152, 165, 241, 249, 263, 283, 338, 348, 365, 389, 451, 463, 483, 511, 579, 590, 608, 633, 691, 701, 717, 739, 787, 796, 810, 829, 867, 875, 887, 903, 153, 166, 174, 183, 248, 262, 282, 305, 347, 364, 388, 414, 462, 482, 510, 539, 589, 607, 632, 657, 700, 716, 738, 759, 795, 809, 828, 845, 874, 886, 902, 915, 176, 187, 195, 202, 261, 281, 304, 321, 363, 387, 413, 432, 481, 509, 538, 559, 606, 631, 656, 674, 715, 737, 758, 773, 808, 827, 844, 856, 885, 901, 914, 923, 192, 199, 206, 213, 280, 303, 320, 331, 386, 412, 431, 443, 508, 537, 558, 571, 630, 655, 673, 684, 736, 757, 772, 781, 826, 843, 855, 862, 900, 913, 922, 927, 240, 247, 260, 279, 337, 346, 362, 385, 450, 461, 480, 507, 578, 588, 605, 629, 690, 699, 714, 735, 786, 794, 807, 825, 866, 873, 884, 899, 930, 936, 945, 957, 246, 259, 278, 302, 345, 361, 384, 411, 460, 479, 506, 536, 587, 604, 628, 654, 698, 713, 734, 756, 793, 806, 824, 842, 872, 883, 898, 912, 935, 944, 956, 966, 258, 277, 301, 319, 360, 383, 410, 430, 478, 505, 535, 557, 603, 627, 653, 672, 712, 733, 755, 771, 805, 823, 841, 854, 882, 897, 911, 921, 943, 955, 965, 972, 276, 300, 318, 330, 382, 409, 429, 442, 504, 534, 556, 570, 626, 652, 671, 683, 732, 754, 770, 780, 822, 840, 853, 861, 896, 910, 920, 926, 954, 964, 971, 975, 336, 344, 359, 381, 449, 459, 477, 503, 577, 586, 602, 625, 689, 697, 711, 731, 785, 792, 804, 821, 865, 871, 881, 895, 929, 934, 942, 953, 977, 981, 987, 995, 343, 358, 380, 408, 458, 476, 502, 533, 585, 601, 624, 651, 696, 710, 730, 753, 791, 803, 820, 839, 870, 880, 894, 909, 933, 941, 952, 963, 980, 986, 994, 1001, 357, 379, 407, 428, 475, 501, 532, 555, 600, 623, 650, 670, 709, 729, 752, 769, 802, 819, 838, 852, 879, 893, 908, 919, 940, 951, 962, 970, 985, 993, 1000, 1005, 378, 406, 427, 441, 500, 531, 554, 569, 622, 649, 669, 682, 728, 751, 768, 779, 818, 837, 851, 860, 892, 907, 918, 925, 950, 961, 969, 974, 992, 999, 1004, 1007, 448, 457, 474, 499, 576, 584, 599, 621, 688, 695, 708, 727, 784, 790, 801, 817, 864, 869, 878, 891, 928, 932, 939, 949, 976, 979, 984, 991, 1008, 1010, 1013, 1017, 456, 473, 498, 530, 583, 598, 620, 648, 694, 707, 726, 750, 789, 800, 816, 836, 868, 877, 890, 906, 931, 938, 948, 960, 978, 983, 990, 998, 1009, 1012, 1016, 1020, 472, 497, 529, 553, 597, 619, 647, 668, 706, 725, 749, 767, 799, 815, 835, 850, 876, 889, 905, 917, 937, 947, 959, 968, 982, 989, 997, 1003, 1011, 1015, 1019, 1022, 496, 528, 552, 568, 618, 646, 667, 681, 724, 748, 766, 778, 814, 834, 849, 859, 888, 904, 916, 924, 946, 958, 967, 973, 988, 996, 1002, 1006, 1014, 1018, 1021, 1023, }; public class ScanOrder { public short[] Scan { get; } public short[] IScan { get; } public short[] Neighbors { get; } public ScanOrder(short[] scan, short[] iScan, short[] neighbors) { Scan = scan; IScan = iScan; Neighbors = neighbors; } } public static readonly ScanOrder[] Vp9DefaultScanOrders = new ScanOrder[] { new ScanOrder(DefaultScan4X4, Vp9DefaultIscan4X4, DefaultScan4X4Neighbors), new ScanOrder(DefaultScan8X8, Vp9DefaultIscan8X8, DefaultScan8X8Neighbors), new ScanOrder(DefaultScan16X16, Vp9DefaultIscan16X16, DefaultScan16X16Neighbors), new ScanOrder(DefaultScan32X32, Vp9DefaultIscan32X32, DefaultScan32X32Neighbors) }; public static readonly ScanOrder[][] Vp9ScanOrders = new ScanOrder[][] { new ScanOrder[] { // TX_4X4 new ScanOrder(DefaultScan4X4, Vp9DefaultIscan4X4, DefaultScan4X4Neighbors), new ScanOrder(RowScan4X4, Vp9RowIscan4X4, RowScan4X4Neighbors), new ScanOrder(ColScan4X4, Vp9ColIscan4X4, ColScan4X4Neighbors), new ScanOrder(DefaultScan4X4, Vp9DefaultIscan4X4, DefaultScan4X4Neighbors) }, new ScanOrder[] { // TX_8X8 new ScanOrder(DefaultScan8X8, Vp9DefaultIscan8X8, DefaultScan8X8Neighbors), new ScanOrder(RowScan8X8, Vp9RowIscan8X8, RowScan8X8Neighbors), new ScanOrder(ColScan8X8, Vp9ColIscan8X8, ColScan8X8Neighbors), new ScanOrder(DefaultScan8X8, Vp9DefaultIscan8X8, DefaultScan8X8Neighbors) }, new ScanOrder[] { // TX_16X16 new ScanOrder(DefaultScan16X16, Vp9DefaultIscan16X16, DefaultScan16X16Neighbors), new ScanOrder(RowScan16X16, Vp9RowIscan16X16, RowScan16X16Neighbors), new ScanOrder(ColScan16X16, Vp9ColIscan16X16, ColScan16X16Neighbors), new ScanOrder(DefaultScan16X16, Vp9DefaultIscan16X16, DefaultScan16X16Neighbors) }, new ScanOrder[] { // TX_32X32 new ScanOrder(DefaultScan32X32, Vp9DefaultIscan32X32, DefaultScan32X32Neighbors), new ScanOrder(DefaultScan32X32, Vp9DefaultIscan32X32, DefaultScan32X32Neighbors), new ScanOrder(DefaultScan32X32, Vp9DefaultIscan32X32, DefaultScan32X32Neighbors), new ScanOrder(DefaultScan32X32, Vp9DefaultIscan32X32, DefaultScan32X32Neighbors) } }; // Entropy MV public static readonly sbyte[] Vp9MvJointTree = new sbyte[] { -(sbyte)MvJointType.MvJointZero, 2, -(sbyte)MvJointType.MvJointHnzvz, 4, -(sbyte)MvJointType.MvJointHzvnz, -(sbyte)MvJointType.MvJointHnzvnz }; public static readonly sbyte[] Vp9MvClassTree = new sbyte[] { -(sbyte)MvClassType.MvClass0, 2, -(sbyte)MvClassType.MvClass1, 4, 6, 8, -(sbyte)MvClassType.MvClass2, -(sbyte)MvClassType.MvClass3, 10, 12, -(sbyte)MvClassType.MvClass4, -(sbyte)MvClassType.MvClass5, -(sbyte)MvClassType.MvClass6, 14, 16, 18, -(sbyte)MvClassType.MvClass7, -(sbyte)MvClassType.MvClass8, -(sbyte)MvClassType.MvClass9, -(sbyte)MvClassType.MvClass10, }; public static ReadOnlySpan Vp9MvFPTree => new sbyte[] { -0, 2, -1, 4, -2, -3 }; // Entropy public static ReadOnlySpan Vp9Cat1Prob => new byte[] { 159 }; public static ReadOnlySpan Vp9Cat2Prob => new byte[] { 165, 145 }; public static ReadOnlySpan Vp9Cat3Prob => new byte[] { 173, 148, 140 }; public static ReadOnlySpan Vp9Cat4Prob => new byte[] { 176, 155, 140, 135 }; public static ReadOnlySpan Vp9Cat5Prob => new byte[] { 180, 157, 141, 134, 130 }; public static ReadOnlySpan Vp9Cat6Prob => new byte[] { 254, 254, 254, 252, 249, 243, 230, 196, 177, 153, 140, 133, 130, 129 }; public static ReadOnlySpan Vp9Cat6ProbHigh12 => new byte[] { 255, 255, 255, 255, 254, 254, 54, 252, 249, 243, 230, 196, 177, 153, 140, 133, 130, 129 }; private static readonly byte[] Vp9CoefbandTrans8X8Plus = new byte[] { 0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, // Beyond MAXBAND_INDEX+1 all values are filled as 5 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, }; private static ReadOnlySpan Vp9CoefbandTrans4X4 => new byte[] { 0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, }; public static ReadOnlySpan get_band_translate(TxSize txSize) { return txSize == TxSize.Tx4x4 ? Vp9CoefbandTrans4X4 : Vp9CoefbandTrans8X8Plus; } public static readonly byte[][] Vp9Pareto8Full = new byte[][] { new byte[] { 3, 86, 128, 6, 86, 23, 88, 29 }, new byte[] { 6, 86, 128, 11, 87, 42, 91, 52 }, new byte[] { 9, 86, 129, 17, 88, 61, 94, 76 }, new byte[] { 12, 86, 129, 22, 88, 77, 97, 93 }, new byte[] { 15, 87, 129, 28, 89, 93, 100, 110 }, new byte[] { 17, 87, 129, 33, 90, 105, 103, 123 }, new byte[] { 20, 88, 130, 38, 91, 118, 106, 136 }, new byte[] { 23, 88, 130, 43, 91, 128, 108, 146 }, new byte[] { 26, 89, 131, 48, 92, 139, 111, 156 }, new byte[] { 28, 89, 131, 53, 93, 147, 114, 163 }, new byte[] { 31, 90, 131, 58, 94, 156, 117, 171 }, new byte[] { 34, 90, 131, 62, 94, 163, 119, 177 }, new byte[] { 37, 90, 132, 66, 95, 171, 122, 184 }, new byte[] { 39, 90, 132, 70, 96, 177, 124, 189 }, new byte[] { 42, 91, 132, 75, 97, 183, 127, 194 }, new byte[] { 44, 91, 132, 79, 97, 188, 129, 198 }, new byte[] { 47, 92, 133, 83, 98, 193, 132, 202 }, new byte[] { 49, 92, 133, 86, 99, 197, 134, 205 }, new byte[] { 52, 93, 133, 90, 100, 201, 137, 208 }, new byte[] { 54, 93, 133, 94, 100, 204, 139, 211 }, new byte[] { 57, 94, 134, 98, 101, 208, 142, 214 }, new byte[] { 59, 94, 134, 101, 102, 211, 144, 216 }, new byte[] { 62, 94, 135, 105, 103, 214, 146, 218 }, new byte[] { 64, 94, 135, 108, 103, 216, 148, 220 }, new byte[] { 66, 95, 135, 111, 104, 219, 151, 222 }, new byte[] { 68, 95, 135, 114, 105, 221, 153, 223 }, new byte[] { 71, 96, 136, 117, 106, 224, 155, 225 }, new byte[] { 73, 96, 136, 120, 106, 225, 157, 226 }, new byte[] { 76, 97, 136, 123, 107, 227, 159, 228 }, new byte[] { 78, 97, 136, 126, 108, 229, 160, 229 }, new byte[] { 80, 98, 137, 129, 109, 231, 162, 231 }, new byte[] { 82, 98, 137, 131, 109, 232, 164, 232 }, new byte[] { 84, 98, 138, 134, 110, 234, 166, 233 }, new byte[] { 86, 98, 138, 137, 111, 235, 168, 234 }, new byte[] { 89, 99, 138, 140, 112, 236, 170, 235 }, new byte[] { 91, 99, 138, 142, 112, 237, 171, 235 }, new byte[] { 93, 100, 139, 145, 113, 238, 173, 236 }, new byte[] { 95, 100, 139, 147, 114, 239, 174, 237 }, new byte[] { 97, 101, 140, 149, 115, 240, 176, 238 }, new byte[] { 99, 101, 140, 151, 115, 241, 177, 238 }, new byte[] { 101, 102, 140, 154, 116, 242, 179, 239 }, new byte[] { 103, 102, 140, 156, 117, 242, 180, 239 }, new byte[] { 105, 103, 141, 158, 118, 243, 182, 240 }, new byte[] { 107, 103, 141, 160, 118, 243, 183, 240 }, new byte[] { 109, 104, 141, 162, 119, 244, 185, 241 }, new byte[] { 111, 104, 141, 164, 119, 244, 186, 241 }, new byte[] { 113, 104, 142, 166, 120, 245, 187, 242 }, new byte[] { 114, 104, 142, 168, 121, 245, 188, 242 }, new byte[] { 116, 105, 143, 170, 122, 246, 190, 243 }, new byte[] { 118, 105, 143, 171, 122, 246, 191, 243 }, new byte[] { 120, 106, 143, 173, 123, 247, 192, 244 }, new byte[] { 121, 106, 143, 175, 124, 247, 193, 244 }, new byte[] { 123, 107, 144, 177, 125, 248, 195, 244 }, new byte[] { 125, 107, 144, 178, 125, 248, 196, 244 }, new byte[] { 127, 108, 145, 180, 126, 249, 197, 245 }, new byte[] { 128, 108, 145, 181, 127, 249, 198, 245 }, new byte[] { 130, 109, 145, 183, 128, 249, 199, 245 }, new byte[] { 132, 109, 145, 184, 128, 249, 200, 245 }, new byte[] { 134, 110, 146, 186, 129, 250, 201, 246 }, new byte[] { 135, 110, 146, 187, 130, 250, 202, 246 }, new byte[] { 137, 111, 147, 189, 131, 251, 203, 246 }, new byte[] { 138, 111, 147, 190, 131, 251, 204, 246 }, new byte[] { 140, 112, 147, 192, 132, 251, 205, 247 }, new byte[] { 141, 112, 147, 193, 132, 251, 206, 247 }, new byte[] { 143, 113, 148, 194, 133, 251, 207, 247 }, new byte[] { 144, 113, 148, 195, 134, 251, 207, 247 }, new byte[] { 146, 114, 149, 197, 135, 252, 208, 248 }, new byte[] { 147, 114, 149, 198, 135, 252, 209, 248 }, new byte[] { 149, 115, 149, 199, 136, 252, 210, 248 }, new byte[] { 150, 115, 149, 200, 137, 252, 210, 248 }, new byte[] { 152, 115, 150, 201, 138, 252, 211, 248 }, new byte[] { 153, 115, 150, 202, 138, 252, 212, 248 }, new byte[] { 155, 116, 151, 204, 139, 253, 213, 249 }, new byte[] { 156, 116, 151, 205, 139, 253, 213, 249 }, new byte[] { 158, 117, 151, 206, 140, 253, 214, 249 }, new byte[] { 159, 117, 151, 207, 141, 253, 215, 249 }, new byte[] { 161, 118, 152, 208, 142, 253, 216, 249 }, new byte[] { 162, 118, 152, 209, 142, 253, 216, 249 }, new byte[] { 163, 119, 153, 210, 143, 253, 217, 249 }, new byte[] { 164, 119, 153, 211, 143, 253, 217, 249 }, new byte[] { 166, 120, 153, 212, 144, 254, 218, 250 }, new byte[] { 167, 120, 153, 212, 145, 254, 219, 250 }, new byte[] { 168, 121, 154, 213, 146, 254, 220, 250 }, new byte[] { 169, 121, 154, 214, 146, 254, 220, 250 }, new byte[] { 171, 122, 155, 215, 147, 254, 221, 250 }, new byte[] { 172, 122, 155, 216, 147, 254, 221, 250 }, new byte[] { 173, 123, 155, 217, 148, 254, 222, 250 }, new byte[] { 174, 123, 155, 217, 149, 254, 222, 250 }, new byte[] { 176, 124, 156, 218, 150, 254, 223, 250 }, new byte[] { 177, 124, 156, 219, 150, 254, 223, 250 }, new byte[] { 178, 125, 157, 220, 151, 254, 224, 251 }, new byte[] { 179, 125, 157, 220, 151, 254, 224, 251 }, new byte[] { 180, 126, 157, 221, 152, 254, 225, 251 }, new byte[] { 181, 126, 157, 221, 152, 254, 225, 251 }, new byte[] { 183, 127, 158, 222, 153, 254, 226, 251 }, new byte[] { 184, 127, 158, 223, 154, 254, 226, 251 }, new byte[] { 185, 128, 159, 224, 155, 255, 227, 251 }, new byte[] { 186, 128, 159, 224, 155, 255, 227, 251 }, new byte[] { 187, 129, 160, 225, 156, 255, 228, 251 }, new byte[] { 188, 130, 160, 225, 156, 255, 228, 251 }, new byte[] { 189, 131, 160, 226, 157, 255, 228, 251 }, new byte[] { 190, 131, 160, 226, 158, 255, 228, 251 }, new byte[] { 191, 132, 161, 227, 159, 255, 229, 251 }, new byte[] { 192, 132, 161, 227, 159, 255, 229, 251 }, new byte[] { 193, 133, 162, 228, 160, 255, 230, 252 }, new byte[] { 194, 133, 162, 229, 160, 255, 230, 252 }, new byte[] { 195, 134, 163, 230, 161, 255, 231, 252 }, new byte[] { 196, 134, 163, 230, 161, 255, 231, 252 }, new byte[] { 197, 135, 163, 231, 162, 255, 231, 252 }, new byte[] { 198, 135, 163, 231, 162, 255, 231, 252 }, new byte[] { 199, 136, 164, 232, 163, 255, 232, 252 }, new byte[] { 200, 136, 164, 232, 164, 255, 232, 252 }, new byte[] { 201, 137, 165, 233, 165, 255, 233, 252 }, new byte[] { 201, 137, 165, 233, 165, 255, 233, 252 }, new byte[] { 202, 138, 166, 233, 166, 255, 233, 252 }, new byte[] { 203, 138, 166, 233, 166, 255, 233, 252 }, new byte[] { 204, 139, 166, 234, 167, 255, 234, 252 }, new byte[] { 205, 139, 166, 234, 167, 255, 234, 252 }, new byte[] { 206, 140, 167, 235, 168, 255, 235, 252 }, new byte[] { 206, 140, 167, 235, 168, 255, 235, 252 }, new byte[] { 207, 141, 168, 236, 169, 255, 235, 252 }, new byte[] { 208, 141, 168, 236, 170, 255, 235, 252 }, new byte[] { 209, 142, 169, 237, 171, 255, 236, 252 }, new byte[] { 209, 143, 169, 237, 171, 255, 236, 252 }, new byte[] { 210, 144, 169, 237, 172, 255, 236, 252 }, new byte[] { 211, 144, 169, 237, 172, 255, 236, 252 }, new byte[] { 212, 145, 170, 238, 173, 255, 237, 252 }, new byte[] { 213, 145, 170, 238, 173, 255, 237, 252 }, new byte[] { 214, 146, 171, 239, 174, 255, 237, 253 }, new byte[] { 214, 146, 171, 239, 174, 255, 237, 253 }, new byte[] { 215, 147, 172, 240, 175, 255, 238, 253 }, new byte[] { 215, 147, 172, 240, 175, 255, 238, 253 }, new byte[] { 216, 148, 173, 240, 176, 255, 238, 253 }, new byte[] { 217, 148, 173, 240, 176, 255, 238, 253 }, new byte[] { 218, 149, 173, 241, 177, 255, 239, 253 }, new byte[] { 218, 149, 173, 241, 178, 255, 239, 253 }, new byte[] { 219, 150, 174, 241, 179, 255, 239, 253 }, new byte[] { 219, 151, 174, 241, 179, 255, 239, 253 }, new byte[] { 220, 152, 175, 242, 180, 255, 240, 253 }, new byte[] { 221, 152, 175, 242, 180, 255, 240, 253 }, new byte[] { 222, 153, 176, 242, 181, 255, 240, 253 }, new byte[] { 222, 153, 176, 242, 181, 255, 240, 253 }, new byte[] { 223, 154, 177, 243, 182, 255, 240, 253 }, new byte[] { 223, 154, 177, 243, 182, 255, 240, 253 }, new byte[] { 224, 155, 178, 244, 183, 255, 241, 253 }, new byte[] { 224, 155, 178, 244, 183, 255, 241, 253 }, new byte[] { 225, 156, 178, 244, 184, 255, 241, 253 }, new byte[] { 225, 157, 178, 244, 184, 255, 241, 253 }, new byte[] { 226, 158, 179, 244, 185, 255, 242, 253 }, new byte[] { 227, 158, 179, 244, 185, 255, 242, 253 }, new byte[] { 228, 159, 180, 245, 186, 255, 242, 253 }, new byte[] { 228, 159, 180, 245, 186, 255, 242, 253 }, new byte[] { 229, 160, 181, 245, 187, 255, 242, 253 }, new byte[] { 229, 160, 181, 245, 187, 255, 242, 253 }, new byte[] { 230, 161, 182, 246, 188, 255, 243, 253 }, new byte[] { 230, 162, 182, 246, 188, 255, 243, 253 }, new byte[] { 231, 163, 183, 246, 189, 255, 243, 253 }, new byte[] { 231, 163, 183, 246, 189, 255, 243, 253 }, new byte[] { 232, 164, 184, 247, 190, 255, 243, 253 }, new byte[] { 232, 164, 184, 247, 190, 255, 243, 253 }, new byte[] { 233, 165, 185, 247, 191, 255, 244, 253 }, new byte[] { 233, 165, 185, 247, 191, 255, 244, 253 }, new byte[] { 234, 166, 185, 247, 192, 255, 244, 253 }, new byte[] { 234, 167, 185, 247, 192, 255, 244, 253 }, new byte[] { 235, 168, 186, 248, 193, 255, 244, 253 }, new byte[] { 235, 168, 186, 248, 193, 255, 244, 253 }, new byte[] { 236, 169, 187, 248, 194, 255, 244, 253 }, new byte[] { 236, 169, 187, 248, 194, 255, 244, 253 }, new byte[] { 236, 170, 188, 248, 195, 255, 245, 253 }, new byte[] { 236, 170, 188, 248, 195, 255, 245, 253 }, new byte[] { 237, 171, 189, 249, 196, 255, 245, 254 }, new byte[] { 237, 172, 189, 249, 196, 255, 245, 254 }, new byte[] { 238, 173, 190, 249, 197, 255, 245, 254 }, new byte[] { 238, 173, 190, 249, 197, 255, 245, 254 }, new byte[] { 239, 174, 191, 249, 198, 255, 245, 254 }, new byte[] { 239, 174, 191, 249, 198, 255, 245, 254 }, new byte[] { 240, 175, 192, 249, 199, 255, 246, 254 }, new byte[] { 240, 176, 192, 249, 199, 255, 246, 254 }, new byte[] { 240, 177, 193, 250, 200, 255, 246, 254 }, new byte[] { 240, 177, 193, 250, 200, 255, 246, 254 }, new byte[] { 241, 178, 194, 250, 201, 255, 246, 254 }, new byte[] { 241, 178, 194, 250, 201, 255, 246, 254 }, new byte[] { 242, 179, 195, 250, 202, 255, 246, 254 }, new byte[] { 242, 180, 195, 250, 202, 255, 246, 254 }, new byte[] { 242, 181, 196, 250, 203, 255, 247, 254 }, new byte[] { 242, 181, 196, 250, 203, 255, 247, 254 }, new byte[] { 243, 182, 197, 251, 204, 255, 247, 254 }, new byte[] { 243, 183, 197, 251, 204, 255, 247, 254 }, new byte[] { 244, 184, 198, 251, 205, 255, 247, 254 }, new byte[] { 244, 184, 198, 251, 205, 255, 247, 254 }, new byte[] { 244, 185, 199, 251, 206, 255, 247, 254 }, new byte[] { 244, 185, 199, 251, 206, 255, 247, 254 }, new byte[] { 245, 186, 200, 251, 207, 255, 247, 254 }, new byte[] { 245, 187, 200, 251, 207, 255, 247, 254 }, new byte[] { 246, 188, 201, 252, 207, 255, 248, 254 }, new byte[] { 246, 188, 201, 252, 207, 255, 248, 254 }, new byte[] { 246, 189, 202, 252, 208, 255, 248, 254 }, new byte[] { 246, 190, 202, 252, 208, 255, 248, 254 }, new byte[] { 247, 191, 203, 252, 209, 255, 248, 254 }, new byte[] { 247, 191, 203, 252, 209, 255, 248, 254 }, new byte[] { 247, 192, 204, 252, 210, 255, 248, 254 }, new byte[] { 247, 193, 204, 252, 210, 255, 248, 254 }, new byte[] { 248, 194, 205, 252, 211, 255, 248, 254 }, new byte[] { 248, 194, 205, 252, 211, 255, 248, 254 }, new byte[] { 248, 195, 206, 252, 212, 255, 249, 254 }, new byte[] { 248, 196, 206, 252, 212, 255, 249, 254 }, new byte[] { 249, 197, 207, 253, 213, 255, 249, 254 }, new byte[] { 249, 197, 207, 253, 213, 255, 249, 254 }, new byte[] { 249, 198, 208, 253, 214, 255, 249, 254 }, new byte[] { 249, 199, 209, 253, 214, 255, 249, 254 }, new byte[] { 250, 200, 210, 253, 215, 255, 249, 254 }, new byte[] { 250, 200, 210, 253, 215, 255, 249, 254 }, new byte[] { 250, 201, 211, 253, 215, 255, 249, 254 }, new byte[] { 250, 202, 211, 253, 215, 255, 249, 254 }, new byte[] { 250, 203, 212, 253, 216, 255, 249, 254 }, new byte[] { 250, 203, 212, 253, 216, 255, 249, 254 }, new byte[] { 251, 204, 213, 253, 217, 255, 250, 254 }, new byte[] { 251, 205, 213, 253, 217, 255, 250, 254 }, new byte[] { 251, 206, 214, 254, 218, 255, 250, 254 }, new byte[] { 251, 206, 215, 254, 218, 255, 250, 254 }, new byte[] { 252, 207, 216, 254, 219, 255, 250, 254 }, new byte[] { 252, 208, 216, 254, 219, 255, 250, 254 }, new byte[] { 252, 209, 217, 254, 220, 255, 250, 254 }, new byte[] { 252, 210, 217, 254, 220, 255, 250, 254 }, new byte[] { 252, 211, 218, 254, 221, 255, 250, 254 }, new byte[] { 252, 212, 218, 254, 221, 255, 250, 254 }, new byte[] { 253, 213, 219, 254, 222, 255, 250, 254 }, new byte[] { 253, 213, 220, 254, 222, 255, 250, 254 }, new byte[] { 253, 214, 221, 254, 223, 255, 250, 254 }, new byte[] { 253, 215, 221, 254, 223, 255, 250, 254 }, new byte[] { 253, 216, 222, 254, 224, 255, 251, 254 }, new byte[] { 253, 217, 223, 254, 224, 255, 251, 254 }, new byte[] { 253, 218, 224, 254, 225, 255, 251, 254 }, new byte[] { 253, 219, 224, 254, 225, 255, 251, 254 }, new byte[] { 254, 220, 225, 254, 225, 255, 251, 254 }, new byte[] { 254, 221, 226, 254, 225, 255, 251, 254 }, new byte[] { 254, 222, 227, 255, 226, 255, 251, 254 }, new byte[] { 254, 223, 227, 255, 226, 255, 251, 254 }, new byte[] { 254, 224, 228, 255, 227, 255, 251, 254 }, new byte[] { 254, 225, 229, 255, 227, 255, 251, 254 }, new byte[] { 254, 226, 230, 255, 228, 255, 251, 254 }, new byte[] { 254, 227, 230, 255, 229, 255, 251, 254 }, new byte[] { 255, 228, 231, 255, 230, 255, 251, 254 }, new byte[] { 255, 229, 232, 255, 230, 255, 251, 254 }, new byte[] { 255, 230, 233, 255, 231, 255, 252, 254 }, new byte[] { 255, 231, 234, 255, 231, 255, 252, 254 }, new byte[] { 255, 232, 235, 255, 232, 255, 252, 254 }, new byte[] { 255, 233, 236, 255, 232, 255, 252, 254 }, new byte[] { 255, 235, 237, 255, 233, 255, 252, 254 }, new byte[] { 255, 236, 238, 255, 234, 255, 252, 254 }, new byte[] { 255, 238, 240, 255, 235, 255, 252, 255 }, new byte[] { 255, 239, 241, 255, 235, 255, 252, 254 }, new byte[] { 255, 241, 243, 255, 236, 255, 252, 254 }, new byte[] { 255, 243, 245, 255, 237, 255, 252, 254 }, new byte[] { 255, 246, 247, 255, 239, 255, 253, 255 }, }; /* Array indices are identical to previously-existing INTRAMODECONTEXTNODES. */ public static readonly sbyte[] Vp9IntraModeTree = new sbyte[] { -(sbyte)PredictionMode.DcPred, 2, /* 0 = DC_NODE */ -(sbyte)PredictionMode.TmPred, 4, /* 1 = TM_NODE */ -(sbyte)PredictionMode.VPred, 6, /* 2 = V_NODE */ 8, 12, /* 3 = COM_NODE */ -(sbyte)PredictionMode.HPred, 10, /* 4 = H_NODE */ -(sbyte)PredictionMode.D135Pred, -(sbyte)PredictionMode.D117Pred, /* 5 = D135_NODE */ -(sbyte)PredictionMode.D45Pred, 14, /* 6 = D45_NODE */ -(sbyte)PredictionMode.D63Pred, 16, /* 7 = D63_NODE */ -(sbyte)PredictionMode.D153Pred, -(sbyte)PredictionMode.D207Pred /* 8 = D153_NODE */ }; public static readonly sbyte[] Vp9InterModeTree = new sbyte[] { -((sbyte)PredictionMode.ZeroMv - (sbyte)PredictionMode. NearestMv), 2, -((sbyte)PredictionMode.NearestMv - (sbyte)PredictionMode.NearestMv), 4, -((sbyte)PredictionMode.NearMv - (sbyte)PredictionMode.NearestMv), -((sbyte)PredictionMode.NewMv - (sbyte)PredictionMode.NearestMv) }; public static readonly sbyte[] Vp9PartitionTree = new sbyte[] { -(sbyte)PartitionType.PartitionNone, 2, -(sbyte)PartitionType.PartitionHorz, 4, -(sbyte)PartitionType.PartitionVert, -(sbyte)PartitionType.PartitionSplit }; public static readonly sbyte[] Vp9SwitchableInterpTree = new sbyte[] { -Constants.EightTap, 2, -Constants.EightTapSmooth, -Constants.EightTapSharp }; public static readonly sbyte[] Vp9SegmentTree = new sbyte[] { 2, 4, 6, 8, 10, 12, 0, -1, -2, -3, -4, -5, -6, -7 }; // MV Ref // This is used to figure out a context for the ref blocks. The code flattens // an array that would have 3 possible counts (0, 1 & 2) for 3 choices by // adding 9 for each intra block, 3 for each zero mv and 1 for each new // motion vector. This single number is then converted into a context // with a single lookup ( CounterToContext ). public static readonly int[] Mode2Counter = new int[] { 9, // DC_PRED 9, // V_PRED 9, // H_PRED 9, // D45_PRED 9, // D135_PRED 9, // D117_PRED 9, // D153_PRED 9, // D207_PRED 9, // D63_PRED 9, // TM_PRED 0, // NEARESTMV 0, // NEARMV 3, // ZEROMV 1, // NEWMV }; // There are 3^3 different combinations of 3 counts that can be either 0,1 or // 2. However the actual count can never be greater than 2 so the highest // counter we need is 18. 9 is an invalid counter that's never used. public static readonly MotionVectorContext[] CounterToContext = new MotionVectorContext[] { MotionVectorContext.BothPredicted, // 0 MotionVectorContext.NewPlusNonIntra, // 1 MotionVectorContext.BothNew, // 2 MotionVectorContext.ZeroPlusPredicted, // 3 MotionVectorContext.NewPlusNonIntra, // 4 MotionVectorContext.InvalidCase, // 5 MotionVectorContext.BothZero, // 6 MotionVectorContext.InvalidCase, // 7 MotionVectorContext.InvalidCase, // 8 MotionVectorContext.IntraPlusNonIntra, // 9 MotionVectorContext.IntraPlusNonIntra, // 10 MotionVectorContext.InvalidCase, // 11 MotionVectorContext.IntraPlusNonIntra, // 12 MotionVectorContext.InvalidCase, // 13 MotionVectorContext.InvalidCase, // 14 MotionVectorContext.InvalidCase, // 15 MotionVectorContext.InvalidCase, // 16 MotionVectorContext.InvalidCase, // 17 MotionVectorContext.BothIntra // 18 }; public static readonly Position[][] MvRefBlocks = new Position[][] { // 4X4 new Position[] { new Position( -1, 0 ), new Position( 0, -1 ), new Position( -1, -1 ), new Position( -2, 0 ), new Position( 0, -2 ), new Position( -2, -1 ), new Position( -1, -2 ), new Position( -2, -2 ) }, // 4X8 new Position[] { new Position( -1, 0 ), new Position( 0, -1 ), new Position( -1, -1 ), new Position( -2, 0 ), new Position( 0, -2 ), new Position( -2, -1 ), new Position( -1, -2 ), new Position( -2, -2 ) }, // 8X4 new Position[] { new Position( -1, 0 ), new Position( 0, -1 ), new Position( -1, -1 ), new Position( -2, 0 ), new Position( 0, -2 ), new Position( -2, -1 ), new Position( -1, -2 ), new Position( -2, -2 ) }, // 8X8 new Position[] { new Position( -1, 0 ), new Position( 0, -1 ), new Position( -1, -1 ), new Position( -2, 0 ), new Position( 0, -2 ), new Position( -2, -1 ), new Position( -1, -2 ), new Position( -2, -2 ) }, // 8X16 new Position[] { new Position( 0, -1 ), new Position( -1, 0 ), new Position( 1, -1 ), new Position( -1, -1 ), new Position( 0, -2 ), new Position( -2, 0 ), new Position( -2, -1 ), new Position( -1, -2 ) }, // 16X8 new Position[] { new Position( -1, 0 ), new Position( 0, -1 ), new Position( -1, 1 ), new Position( -1, -1 ), new Position( -2, 0 ), new Position( 0, -2 ), new Position( -1, -2 ), new Position( -2, -1 ) }, // 16X16 new Position[] { new Position( -1, 0 ), new Position( 0, -1 ), new Position( -1, 1 ), new Position( 1, -1 ), new Position( -1, -1 ), new Position( -3, 0 ), new Position( 0, -3 ), new Position( -3, -3 ) }, // 16X32 new Position[] { new Position( 0, -1 ), new Position( -1, 0 ), new Position( 2, -1 ), new Position( -1, -1 ), new Position( -1, 1 ), new Position( 0, -3 ), new Position( -3, 0 ), new Position( -3, -3 ) }, // 32X16 new Position[] { new Position( -1, 0 ), new Position( 0, -1 ), new Position( -1, 2 ), new Position( -1, -1 ), new Position( 1, -1 ), new Position( -3, 0 ), new Position( 0, -3 ), new Position( -3, -3 ) }, // 32X32 new Position[] { new Position( -1, 1 ), new Position( 1, -1 ), new Position( -1, 2 ), new Position( 2, -1 ), new Position( -1, -1 ), new Position( -3, 0 ), new Position( 0, -3 ), new Position( -3, -3 ) }, // 32X64 new Position[] { new Position( 0, -1 ), new Position( -1, 0 ), new Position( 4, -1 ), new Position( -1, 2 ), new Position( -1, -1 ), new Position( 0, -3 ), new Position( -3, 0 ), new Position( 2, -1 ) }, // 64X32 new Position[] { new Position( -1, 0 ), new Position( 0, -1 ), new Position( -1, 4 ), new Position( 2, -1 ), new Position( -1, -1 ), new Position( -3, 0 ), new Position( 0, -3 ), new Position( -1, 2 ) }, // 64X64 new Position[] { new Position( -1, 3 ), new Position( 3, -1 ), new Position( -1, 4 ), new Position( 4, -1 ), new Position( -1, -1 ), new Position( -1, 0 ), new Position( 0, -1 ), new Position( -1, 6 ) } }; } }