From be3fd5bc9c93892728b81c1a6b75094243ad3cda Mon Sep 17 00:00:00 2001 From: Brian Popow Date: Wed, 26 Feb 2020 14:08:25 +0100 Subject: [PATCH] Move lookup tables to separate file --- src/ImageSharp/Formats/WebP/LossyUtils.cs | 50 +- src/ImageSharp/Formats/WebP/Vp8BitReader.cs | 4 +- .../Formats/WebP/Vp8LookupTables.cs | 487 +++++++++++++++++- src/ImageSharp/Formats/WebP/WebPConstants.cs | 340 ------------ .../Formats/WebP/WebPLossyDecoder.cs | 149 +----- 5 files changed, 496 insertions(+), 534 deletions(-) diff --git a/src/ImageSharp/Formats/WebP/LossyUtils.cs b/src/ImageSharp/Formats/WebP/LossyUtils.cs index a10c0f4171..a3f5f5102f 100644 --- a/src/ImageSharp/Formats/WebP/LossyUtils.cs +++ b/src/ImageSharp/Formats/WebP/LossyUtils.cs @@ -756,11 +756,11 @@ namespace SixLabors.ImageSharp.Formats.WebP int p0 = p[offset - step]; int q0 = p[offset]; int q1 = p[offset + step]; - int a = (3 * (q0 - p0)) + Vp8LookupTables.Sclip1(p1 - q1); - int a1 = Vp8LookupTables.Sclip2((a + 4) >> 3); - int a2 = Vp8LookupTables.Sclip2((a + 3) >> 3); - p[offset - step] = Vp8LookupTables.Clip1(p0 + a2); - p[offset] = Vp8LookupTables.Clip1(q0 - a1); + int a = (3 * (q0 - p0)) + Vp8LookupTables.Sclip1[p1 - q1]; + int a1 = Vp8LookupTables.Sclip2[(a + 4) >> 3]; + int a2 = Vp8LookupTables.Sclip2[(a + 3) >> 3]; + p[offset - step] = Vp8LookupTables.Clip1[p0 + a2]; + p[offset] = Vp8LookupTables.Clip1[q0 - a1]; } private static void DoFilter4(byte[] p, int offset, int step) @@ -771,13 +771,13 @@ namespace SixLabors.ImageSharp.Formats.WebP int q0 = p[offset]; int q1 = p[offset + step]; int a = 3 * (q0 - p0); - int a1 = Vp8LookupTables.Sclip2((a + 4) >> 3); - int a2 = Vp8LookupTables.Sclip2((a + 3) >> 3); + int a1 = Vp8LookupTables.Sclip2[(a + 4) >> 3]; + int a2 = Vp8LookupTables.Sclip2[(a + 3) >> 3]; int a3 = (a1 + 1) >> 1; - p[offset - (2 * step)] = Vp8LookupTables.Clip1(p1 + a3); - p[offset - step] = Vp8LookupTables.Clip1(p0 + a2); - p[offset] = Vp8LookupTables.Clip1(q0 - a1); - p[offset + step] = Vp8LookupTables.Clip1(q1 - a3); + p[offset - (2 * step)] = Vp8LookupTables.Clip1[p1 + a3]; + p[offset - step] = Vp8LookupTables.Clip1[p0 + a2]; + p[offset] = Vp8LookupTables.Clip1[q0 - a1]; + p[offset + step] = Vp8LookupTables.Clip1[q1 - a3]; } private static void DoFilter6(byte[] p, int offset, int step) @@ -789,18 +789,18 @@ namespace SixLabors.ImageSharp.Formats.WebP int q0 = p[offset]; int q1 = p[offset + step]; int q2 = p[offset + (2 * step)]; - int a = Vp8LookupTables.Clip1((3 * (q0 - p0)) + Vp8LookupTables.Clip1(p1 - q1)); + int a = Vp8LookupTables.Clip1[(3 * (q0 - p0)) + Vp8LookupTables.Clip1[p1 - q1]]; // a is in [-128,127], a1 in [-27,27], a2 in [-18,18] and a3 in [-9,9] int a1 = ((27 * a) + 63) >> 7; // eq. to ((3 * a + 7) * 9) >> 7 int a2 = ((18 * a) + 63) >> 7; // eq. to ((2 * a + 7) * 9) >> 7 int a3 = ((9 * a) + 63) >> 7; // eq. to ((1 * a + 7) * 9) >> 7 - p[offset - (3 * step)] = Vp8LookupTables.Clip1(p2 + a3); - p[offset - (2 * step)] = Vp8LookupTables.Clip1(p1 + a2); - p[offset - step] = Vp8LookupTables.Clip1(p0 + a1); - p[offset] = Vp8LookupTables.Clip1(q0 - a1); - p[offset + step] = Vp8LookupTables.Clip1(q1 - a2); - p[offset + (2 * step)] = Vp8LookupTables.Clip1(q2 - a3); + p[offset - (3 * step)] = Vp8LookupTables.Clip1[p2 + a3]; + p[offset - (2 * step)] = Vp8LookupTables.Clip1[p1 + a2]; + p[offset - step] = Vp8LookupTables.Clip1[p0 + a1]; + p[offset] = Vp8LookupTables.Clip1[q0 - a1]; + p[offset + step] = Vp8LookupTables.Clip1[q1 - a2]; + p[offset + (2 * step)] = Vp8LookupTables.Clip1[q2 - a3]; } private static bool NeedsFilter(byte[] p, int offset, int step, int thresh) @@ -809,7 +809,7 @@ namespace SixLabors.ImageSharp.Formats.WebP int p0 = p[offset - step]; int q0 = p[offset]; int q1 = p[offset + step]; - return (Vp8LookupTables.Abs0(p1 - p0) > thresh) || (Vp8LookupTables.Abs0(q1 - q0) > thresh); + return (Vp8LookupTables.Abs0[p1 - p0] > thresh) || (Vp8LookupTables.Abs0[q1 - q0] > thresh); } private static bool NeedsFilter2(byte[] p, int offset, int step, int t, int it) @@ -822,23 +822,23 @@ namespace SixLabors.ImageSharp.Formats.WebP int q1 = p[offset + step]; int q2 = p[offset + (2 * step)]; int q3 = p[offset + (3 * step)]; - if (((4 * Vp8LookupTables.Abs0(p0 - q0)) + Vp8LookupTables.Abs0(p1 - q1)) > t) + if (((4 * Vp8LookupTables.Abs0[p0 - q0]) + Vp8LookupTables.Abs0[p1 - q1]) > t) { return false; } - return Vp8LookupTables.Abs0(p3 - p2) <= it && Vp8LookupTables.Abs0(p2 - p1) <= it && - Vp8LookupTables.Abs0(p1 - p0) <= it && Vp8LookupTables.Abs0(q3 - q2) <= it && - Vp8LookupTables.Abs0(q2 - q1) <= it && Vp8LookupTables.Abs0(q1 - q0) <= it; + return Vp8LookupTables.Abs0[p3 - p2] <= it && Vp8LookupTables.Abs0[p2 - p1] <= it && + Vp8LookupTables.Abs0[p1 - p0] <= it && Vp8LookupTables.Abs0[q3 - q2] <= it && + Vp8LookupTables.Abs0[q2 - q1] <= it && Vp8LookupTables.Abs0[q1 - q0] <= it; } private static bool Hev(byte[] p, int offset, int step, int thresh) { - int p1 = p[offset -(2 * step)]; + int p1 = p[offset - (2 * step)]; int p0 = p[offset - step]; int q0 = p[offset]; int q1 = p[offset + step]; - return (Vp8LookupTables.Abs0(p1 - p0) > thresh) || (Vp8LookupTables.Abs0(q1 - q0) > thresh); + return (Vp8LookupTables.Abs0[p1 - p0] > thresh) || (Vp8LookupTables.Abs0[q1 - q0] > thresh); } private static int MultHi(int v, int coeff) diff --git a/src/ImageSharp/Formats/WebP/Vp8BitReader.cs b/src/ImageSharp/Formats/WebP/Vp8BitReader.cs index 85c762ea08..2d3568a2b5 100644 --- a/src/ImageSharp/Formats/WebP/Vp8BitReader.cs +++ b/src/ImageSharp/Formats/WebP/Vp8BitReader.cs @@ -113,7 +113,7 @@ namespace SixLabors.ImageSharp.Formats.WebP return bit ? 1 : 0; } - // simplified version of VP8GetBit() for prob=0x80 (note shift is always 1 here) + // Simplified version of VP8GetBit() for prob=0x80 (note shift is always 1 here) public int GetSigned(int v) { if (this.bits < 0) @@ -227,7 +227,7 @@ namespace SixLabors.ImageSharp.Formats.WebP n >>= 8; } - return logValue + WebPConstants.LogTable8bit[n]; + return logValue + Vp8LookupTables.LogTable8bit[n]; } } } diff --git a/src/ImageSharp/Formats/WebP/Vp8LookupTables.cs b/src/ImageSharp/Formats/WebP/Vp8LookupTables.cs index ec20f2cad4..4f0a9127e8 100644 --- a/src/ImageSharp/Formats/WebP/Vp8LookupTables.cs +++ b/src/ImageSharp/Formats/WebP/Vp8LookupTables.cs @@ -1,64 +1,495 @@ // Copyright (c) Six Labors and contributors. // Licensed under the Apache License, Version 2.0. +using System.Collections.Generic; + namespace SixLabors.ImageSharp.Formats.WebP { internal static class Vp8LookupTables { - private static readonly byte[] abs0; + public static readonly Dictionary Abs0; + + public static readonly Dictionary Clip1; + + public static readonly Dictionary Sclip1; + + public static readonly Dictionary Sclip2; + + public static readonly byte[,][] ModesProba = new byte[10, 10][]; + + // 31 ^ clz(i) + public static readonly byte[] LogTable8bit = + { + 0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 + }; - private static readonly byte[] clip1; + // Paragraph 14.1 + public static readonly int[] DcTable = + { + 4, 5, 6, 7, 8, 9, 10, 10, + 11, 12, 13, 14, 15, 16, 17, 17, + 18, 19, 20, 20, 21, 21, 22, 22, + 23, 23, 24, 25, 25, 26, 27, 28, + 29, 30, 31, 32, 33, 34, 35, 36, + 37, 37, 38, 39, 40, 41, 42, 43, + 44, 45, 46, 46, 47, 48, 49, 50, + 51, 52, 53, 54, 55, 56, 57, 58, + 59, 60, 61, 62, 63, 64, 65, 66, + 67, 68, 69, 70, 71, 72, 73, 74, + 75, 76, 76, 77, 78, 79, 80, 81, + 82, 83, 84, 85, 86, 87, 88, 89, + 91, 93, 95, 96, 98, 100, 101, 102, + 104, 106, 108, 110, 112, 114, 116, 118, + 122, 124, 126, 128, 130, 132, 134, 136, + 138, 140, 143, 145, 148, 151, 154, 157 + }; + + // Paragraph 14.1 + public static readonly int[] AcTable = + { + 4, 5, 6, 7, 8, 9, 10, 11, + 12, 13, 14, 15, 16, 17, 18, 19, + 20, 21, 22, 23, 24, 25, 26, 27, + 28, 29, 30, 31, 32, 33, 34, 35, + 36, 37, 38, 39, 40, 41, 42, 43, + 44, 45, 46, 47, 48, 49, 50, 51, + 52, 53, 54, 55, 56, 57, 58, 60, + 62, 64, 66, 68, 70, 72, 74, 76, + 78, 80, 82, 84, 86, 88, 90, 92, + 94, 96, 98, 100, 102, 104, 106, 108, + 110, 112, 114, 116, 119, 122, 125, 128, + 131, 134, 137, 140, 143, 146, 149, 152, + 155, 158, 161, 164, 167, 170, 173, 177, + 181, 185, 189, 193, 197, 201, 205, 209, + 213, 217, 221, 225, 229, 234, 239, 245, + 249, 254, 259, 264, 269, 274, 279, 284 + }; - private static readonly sbyte[] sclip1; + // Paragraph 13 + public static readonly byte[,,,] CoeffsUpdateProba = + { + { { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 176, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 223, 241, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 249, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 244, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 234, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 246, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 239, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 251, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 251, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 254, 253, 255, 254, 255, 255, 255, 255, 255, 255 }, + { 250, 255, 254, 255, 254, 255, 255, 255, 255, 255, 255 }, + { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + } + }, + { { { 217, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 225, 252, 241, 253, 255, 255, 254, 255, 255, 255, 255 }, + { 234, 250, 241, 250, 253, 255, 253, 254, 255, 255, 255 } + }, + { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 223, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 238, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 249, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 247, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + } + }, + { { { 186, 251, 250, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 234, 251, 244, 254, 255, 255, 255, 255, 255, 255, 255 }, + { 251, 251, 243, 253, 254, 255, 254, 255, 255, 255, 255 } + }, + { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 236, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + } + }, + { { { 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 250, 254, 252, 254, 255, 255, 255, 255, 255, 255, 255 }, + { 248, 254, 249, 253, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 246, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 252, 254, 251, 254, 254, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 254, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 248, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 253, 255, 254, 254, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 245, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 253, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 249, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 255, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + }, + { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, + { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } + } + } + }; - private static readonly sbyte[] sclip2; + // Paragraph 13.5: Default Token Probability Table. + public static readonly byte[,,,] DefaultCoeffsProba = + { + { + { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, + { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, + { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } + }, + { { 253, 136, 254, 255, 228, 219, 128, 128, 128, 128, 128 }, + { 189, 129, 242, 255, 227, 213, 255, 219, 128, 128, 128 }, + { 106, 126, 227, 252, 214, 209, 255, 255, 128, 128, 128 } + }, + { { 1, 98, 248, 255, 236, 226, 255, 255, 128, 128, 128 }, + { 181, 133, 238, 254, 221, 234, 255, 154, 128, 128, 128 }, + { 78, 134, 202, 247, 198, 180, 255, 219, 128, 128, 128 }, + }, + { { 1, 185, 249, 255, 243, 255, 128, 128, 128, 128, 128 }, + { 184, 150, 247, 255, 236, 224, 128, 128, 128, 128, 128 }, + { 77, 110, 216, 255, 236, 230, 128, 128, 128, 128, 128 }, + }, + { { 1, 101, 251, 255, 241, 255, 128, 128, 128, 128, 128 }, + { 170, 139, 241, 252, 236, 209, 255, 255, 128, 128, 128 }, + { 37, 116, 196, 243, 228, 255, 255, 255, 128, 128, 128 } + }, + { { 1, 204, 254, 255, 245, 255, 128, 128, 128, 128, 128 }, + { 207, 160, 250, 255, 238, 128, 128, 128, 128, 128, 128 }, + { 102, 103, 231, 255, 211, 171, 128, 128, 128, 128, 128 } + }, + { { 1, 152, 252, 255, 240, 255, 128, 128, 128, 128, 128 }, + { 177, 135, 243, 255, 234, 225, 128, 128, 128, 128, 128 }, + { 80, 129, 211, 255, 194, 224, 128, 128, 128, 128, 128 } + }, + { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, + { 246, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, + { 255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } + } + }, + { + { { 198, 35, 237, 223, 193, 187, 162, 160, 145, 155, 62 }, + { 131, 45, 198, 221, 172, 176, 220, 157, 252, 221, 1 }, + { 68, 47, 146, 208, 149, 167, 221, 162, 255, 223, 128 } + }, + { { 1, 149, 241, 255, 221, 224, 255, 255, 128, 128, 128 }, + { 184, 141, 234, 253, 222, 220, 255, 199, 128, 128, 128 }, + { 81, 99, 181, 242, 176, 190, 249, 202, 255, 255, 128 } + }, + { { 1, 129, 232, 253, 214, 197, 242, 196, 255, 255, 128 }, + { 99, 121, 210, 250, 201, 198, 255, 202, 128, 128, 128 }, + { 23, 91, 163, 242, 170, 187, 247, 210, 255, 255, 128 } + }, + { { 1, 200, 246, 255, 234, 255, 128, 128, 128, 128, 128 }, + { 109, 178, 241, 255, 231, 245, 255, 255, 128, 128, 128 }, + { 44, 130, 201, 253, 205, 192, 255, 255, 128, 128, 128 } + }, + { { 1, 132, 239, 251, 219, 209, 255, 165, 128, 128, 128 }, + { 94, 136, 225, 251, 218, 190, 255, 255, 128, 128, 128 }, + { 22, 100, 174, 245, 186, 161, 255, 199, 128, 128, 128 } + }, + { { 1, 182, 249, 255, 232, 235, 128, 128, 128, 128, 128 }, + { 124, 143, 241, 255, 227, 234, 128, 128, 128, 128, 128 }, + { 35, 77, 181, 251, 193, 211, 255, 205, 128, 128, 128 } + }, + { { 1, 157, 247, 255, 236, 231, 255, 255, 128, 128, 128 }, + { 121, 141, 235, 255, 225, 227, 255, 255, 128, 128, 128 }, + { 45, 99, 188, 251, 195, 217, 255, 224, 128, 128, 128 } + }, + { { 1, 1, 251, 255, 213, 255, 128, 128, 128, 128, 128 }, + { 203, 1, 248, 255, 255, 128, 128, 128, 128, 128, 128 }, + { 137, 1, 177, 255, 224, 255, 128, 128, 128, 128, 128 } + } + }, + { { { 253, 9, 248, 251, 207, 208, 255, 192, 128, 128, 128 }, + { 175, 13, 224, 243, 193, 185, 249, 198, 255, 255, 128 }, + { 73, 17, 171, 221, 161, 179, 236, 167, 255, 234, 128 } + }, + { { 1, 95, 247, 253, 212, 183, 255, 255, 128, 128, 128 }, + { 239, 90, 244, 250, 211, 209, 255, 255, 128, 128, 128 }, + { 155, 77, 195, 248, 188, 195, 255, 255, 128, 128, 128 } + }, + { { 1, 24, 239, 251, 218, 219, 255, 205, 128, 128, 128 }, + { 201, 51, 219, 255, 196, 186, 128, 128, 128, 128, 128 }, + { 69, 46, 190, 239, 201, 218, 255, 228, 128, 128, 128 } + }, + { { 1, 191, 251, 255, 255, 128, 128, 128, 128, 128, 128 }, + { 223, 165, 249, 255, 213, 255, 128, 128, 128, 128, 128 }, + { 141, 124, 248, 255, 255, 128, 128, 128, 128, 128, 128 } + }, + { { 1, 16, 248, 255, 255, 128, 128, 128, 128, 128, 128 }, + { 190, 36, 230, 255, 236, 255, 128, 128, 128, 128, 128 }, + { 149, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 } + }, + { { 1, 226, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, + { 247, 192, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, + { 240, 128, 255, 128, 128, 128, 128, 128, 128, 128, 128 } + }, + { { 1, 134, 252, 255, 255, 128, 128, 128, 128, 128, 128 }, + { 213, 62, 250, 255, 255, 128, 128, 128, 128, 128, 128 }, + { 55, 93, 255, 128, 128, 128, 128, 128, 128, 128, 128 } + }, + { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, + { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, + { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } + } + }, + { + { { 202, 24, 213, 235, 186, 191, 220, 160, 240, 175, 255 }, + { 126, 38, 182, 232, 169, 184, 228, 174, 255, 187, 128 }, + { 61, 46, 138, 219, 151, 178, 240, 170, 255, 216, 128 } + }, + { { 1, 112, 230, 250, 199, 191, 247, 159, 255, 255, 128 }, + { 166, 109, 228, 252, 211, 215, 255, 174, 128, 128, 128 }, + { 39, 77, 162, 232, 172, 180, 245, 178, 255, 255, 128 } + }, + { { 1, 52, 220, 246, 198, 199, 249, 220, 255, 255, 128 }, + { 124, 74, 191, 243, 183, 193, 250, 221, 255, 255, 128 }, + { 24, 71, 130, 219, 154, 170, 243, 182, 255, 255, 128 } + }, + { { 1, 182, 225, 249, 219, 240, 255, 224, 128, 128, 128 }, + { 149, 150, 226, 252, 216, 205, 255, 171, 128, 128, 128 }, + { 28, 108, 170, 242, 183, 194, 254, 223, 255, 255, 128 } + }, + { { 1, 81, 230, 252, 204, 203, 255, 192, 128, 128, 128 }, + { 123, 102, 209, 247, 188, 196, 255, 233, 128, 128, 128 }, + { 20, 95, 153, 243, 164, 173, 255, 203, 128, 128, 128 } + }, + { { 1, 222, 248, 255, 216, 213, 128, 128, 128, 128, 128 }, + { 168, 175, 246, 252, 235, 205, 255, 255, 128, 128, 128 }, + { 47, 116, 215, 255, 211, 212, 255, 255, 128, 128, 128 } + }, + { { 1, 121, 236, 253, 212, 214, 255, 255, 128, 128, 128 }, + { 141, 84, 213, 252, 201, 202, 255, 219, 128, 128, 128 }, + { 42, 80, 160, 240, 162, 185, 255, 205, 128, 128, 128 } + }, + { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, + { 244, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, + { 238, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 } + } + } + }; static Vp8LookupTables() { // TODO: maybe use hashset here - abs0 = new byte[511]; + Abs0 = new Dictionary(); for (int i = -255; i <= 255; ++i) { - abs0[255 + i] = (byte)((i < 0) ? -i : i); + Abs0[i] = (byte)((i < 0) ? -i : i); } - clip1 = new byte[766]; + Clip1 = new Dictionary(); for (int i = -255; i <= 255 + 255; ++i) { - clip1[255 + i] = (byte)((i < 0) ? 0 : (i > 255) ? 255 : i); + Clip1[i] = (byte)((i < 0) ? 0 : (i > 255) ? 255 : i); } - sclip1 = new sbyte[2041]; + Sclip1 = new Dictionary(); for (int i = -1020; i <= 1020; ++i) { - sclip1[1020 + i] = (sbyte)((i < -128) ? -128 : (i > 127) ? 127 : i); + Sclip1[i] = (sbyte)((i < -128) ? -128 : (i > 127) ? 127 : i); } - sclip2 = new sbyte[225]; + Sclip2 = new Dictionary(); for (int i = -112; i <= 112; ++i) { - sclip2[112 + i] = (sbyte)((i < -16) ? -16 : (i > 15) ? 15 : i); + Sclip2[i] = (sbyte)((i < -16) ? -16 : (i > 15) ? 15 : i); } - } - public static byte Abs0(int v) - { - return abs0[v + 255]; - } - - public static byte Clip1(int v) - { - return clip1[v + 255]; - } - - public static sbyte Sclip1(int v) - { - return sclip1[v + 1020]; + InitializeModesProbabilities(); } - public static sbyte Sclip2(int v) + private static void InitializeModesProbabilities() { - return sclip2[v + 112]; + // Paragraph 11.5 + ModesProba[0, 0] = new byte[] { 231, 120, 48, 89, 115, 113, 120, 152, 112 }; + ModesProba[0, 1] = new byte[] { 152, 179, 64, 126, 170, 118, 46, 70, 95 }; + ModesProba[0, 2] = new byte[] { 175, 69, 143, 80, 85, 82, 72, 155, 103 }; + ModesProba[0, 3] = new byte[] { 56, 58, 10, 171, 218, 189, 17, 13, 152 }; + ModesProba[0, 4] = new byte[] { 114, 26, 17, 163, 44, 195, 21, 10, 173 }; + ModesProba[0, 5] = new byte[] { 121, 24, 80, 195, 26, 62, 44, 64, 85 }; + ModesProba[0, 6] = new byte[] { 144, 71, 10, 38, 171, 213, 144, 34, 26 }; + ModesProba[0, 7] = new byte[] { 170, 46, 55, 19, 136, 160, 33, 206, 71 }; + ModesProba[0, 8] = new byte[] { 63, 20, 8, 114, 114, 208, 12, 9, 226 }; + ModesProba[0, 9] = new byte[] { 81, 40, 11, 96, 182, 84, 29, 16, 36 }; + ModesProba[1, 0] = new byte[] { 134, 183, 89, 137, 98, 101, 106, 165, 148 }; + ModesProba[1, 1] = new byte[] { 72, 187, 100, 130, 157, 111, 32, 75, 80 }; + ModesProba[1, 2] = new byte[] { 66, 102, 167, 99, 74, 62, 40, 234, 128 }; + ModesProba[1, 3] = new byte[] { 41, 53, 9, 178, 241, 141, 26, 8, 107 }; + ModesProba[1, 4] = new byte[] { 74, 43, 26, 146, 73, 166, 49, 23, 157 }; + ModesProba[1, 5] = new byte[] { 65, 38, 105, 160, 51, 52, 31, 115, 128 }; + ModesProba[1, 6] = new byte[] { 104, 79, 12, 27, 217, 255, 87, 17, 7 }; + ModesProba[1, 7] = new byte[] { 87, 68, 71, 44, 114, 51, 15, 186, 23 }; + ModesProba[1, 8] = new byte[] { 47, 41, 14, 110, 182, 183, 21, 17, 194 }; + ModesProba[1, 9] = new byte[] { 66, 45, 25, 102, 197, 189, 23, 18, 22 }; + ModesProba[2, 0] = new byte[] { 88, 88, 147, 150, 42, 46, 45, 196, 205 }; + ModesProba[2, 1] = new byte[] { 43, 97, 183, 117, 85, 38, 35, 179, 61 }; + ModesProba[2, 2] = new byte[] { 39, 53, 200, 87, 26, 21, 43, 232, 171 }; + ModesProba[2, 3] = new byte[] { 56, 34, 51, 104, 114, 102, 29, 93, 77 }; + ModesProba[2, 4] = new byte[] { 39, 28, 85, 171, 58, 165, 90, 98, 64 }; + ModesProba[2, 5] = new byte[] { 34, 22, 116, 206, 23, 34, 43, 166, 73 }; + ModesProba[2, 6] = new byte[] { 107, 54, 32, 26, 51, 1, 81, 43, 31 }; + ModesProba[2, 7] = new byte[] { 68, 25, 106, 22, 64, 171, 36, 225, 114 }; + ModesProba[2, 8] = new byte[] { 34, 19, 21, 102, 132, 188, 16, 76, 124 }; + ModesProba[2, 9] = new byte[] { 62, 18, 78, 95, 85, 57, 50, 48, 51 }; + ModesProba[3, 0] = new byte[] { 193, 101, 35, 159, 215, 111, 89, 46, 111 }; + ModesProba[3, 1] = new byte[] { 60, 148, 31, 172, 219, 228, 21, 18, 111 }; + ModesProba[3, 2] = new byte[] { 112, 113, 77, 85, 179, 255, 38, 120, 114 }; + ModesProba[3, 3] = new byte[] { 40, 42, 1, 196, 245, 209, 10, 25, 109 }; + ModesProba[3, 4] = new byte[] { 88, 43, 29, 140, 166, 213, 37, 43, 154 }; + ModesProba[3, 5] = new byte[] { 61, 63, 30, 155, 67, 45, 68, 1, 209 }; + ModesProba[3, 6] = new byte[] { 100, 80, 8, 43, 154, 1, 51, 26, 71 }; + ModesProba[3, 7] = new byte[] { 142, 78, 78, 16, 255, 128, 34, 197, 171 }; + ModesProba[3, 8] = new byte[] { 41, 40, 5, 102, 211, 183, 4, 1, 221 }; + ModesProba[3, 9] = new byte[] { 51, 50, 17, 168, 209, 192, 23, 25, 82 }; + ModesProba[4, 0] = new byte[] { 138, 31, 36, 171, 27, 166, 38, 44, 229 }; + ModesProba[4, 1] = new byte[] { 67, 87, 58, 169, 82, 115, 26, 59, 179 }; + ModesProba[4, 2] = new byte[] { 63, 59, 90, 180, 59, 166, 93, 73, 154 }; + ModesProba[4, 3] = new byte[] { 40, 40, 21, 116, 143, 209, 34, 39, 175 }; + ModesProba[4, 4] = new byte[] { 47, 15, 16, 183, 34, 223, 49, 45, 183 }; + ModesProba[4, 5] = new byte[] { 46, 17, 33, 183, 6, 98, 15, 32, 183 }; + ModesProba[4, 6] = new byte[] { 57, 46, 22, 24, 128, 1, 54, 17, 37 }; + ModesProba[4, 7] = new byte[] { 65, 32, 73, 115, 28, 128, 23, 128, 205 }; + ModesProba[4, 8] = new byte[] { 40, 3, 9, 115, 51, 192, 18, 6, 223 }; + ModesProba[4, 9] = new byte[] { 87, 37, 9, 115, 59, 77, 64, 21, 47 }; + ModesProba[5, 0] = new byte[] { 104, 55, 44, 218, 9, 54, 53, 130, 226 }; + ModesProba[5, 1] = new byte[] { 64, 90, 70, 205, 40, 41, 23, 26, 57 }; + ModesProba[5, 2] = new byte[] { 54, 57, 112, 184, 5, 41, 38, 166, 213 }; + ModesProba[5, 3] = new byte[] { 30, 34, 26, 133, 152, 116, 10, 32, 134 }; + ModesProba[5, 4] = new byte[] { 39, 19, 53, 221, 26, 114, 32, 73, 255 }; + ModesProba[5, 5] = new byte[] { 31, 9, 65, 234, 2, 15, 1, 118, 73 }; + ModesProba[5, 6] = new byte[] { 75, 32, 12, 51, 192, 255, 160, 43, 51 }; + ModesProba[5, 7] = new byte[] { 88, 31, 35, 67, 102, 85, 55, 186, 85 }; + ModesProba[5, 8] = new byte[] { 56, 21, 23, 111, 59, 205, 45, 37, 192 }; + ModesProba[5, 9] = new byte[] { 55, 38, 70, 124, 73, 102, 1, 34, 98 }; + ModesProba[6, 0] = new byte[] { 125, 98, 42, 88, 104, 85, 117, 175, 82 }; + ModesProba[6, 1] = new byte[] { 95, 84, 53, 89, 128, 100, 113, 101, 45 }; + ModesProba[6, 2] = new byte[] { 75, 79, 123, 47, 51, 128, 81, 171, 1 }; + ModesProba[6, 3] = new byte[] { 57, 17, 5, 71, 102, 57, 53, 41, 49 }; + ModesProba[6, 4] = new byte[] { 38, 33, 13, 121, 57, 73, 26, 1, 85 }; + ModesProba[6, 5] = new byte[] { 41, 10, 67, 138, 77, 110, 90, 47, 114 }; + ModesProba[6, 6] = new byte[] { 115, 21, 2, 10, 102, 255, 166, 23, 6 }; + ModesProba[6, 7] = new byte[] { 101, 29, 16, 10, 85, 128, 101, 196, 26 }; + ModesProba[6, 8] = new byte[] { 57, 18, 10, 102, 102, 213, 34, 20, 43 }; + ModesProba[6, 9] = new byte[] { 117, 20, 15, 36, 163, 128, 68, 1, 26 }; + ModesProba[7, 0] = new byte[] { 102, 61, 71, 37, 34, 53, 31, 243, 192 }; + ModesProba[7, 1] = new byte[] { 69, 60, 71, 38, 73, 119, 28, 222, 37 }; + ModesProba[7, 2] = new byte[] { 68, 45, 128, 34, 1, 47, 11, 245, 171 }; + ModesProba[7, 3] = new byte[] { 62, 17, 19, 70, 146, 85, 55, 62, 70 }; + ModesProba[7, 4] = new byte[] { 37, 43, 37, 154, 100, 163, 85, 160, 1 }; + ModesProba[7, 5] = new byte[] { 63, 9, 92, 136, 28, 64, 32, 201, 85 }; + ModesProba[7, 6] = new byte[] { 75, 15, 9, 9, 64, 255, 184, 119, 16 }; + ModesProba[7, 7] = new byte[] { 86, 6, 28, 5, 64, 255, 25, 248, 1 }; + ModesProba[7, 8] = new byte[] { 56, 8, 17, 132, 137, 255, 55, 116, 128 }; + ModesProba[7, 9] = new byte[] { 58, 15, 20, 82, 135, 57, 26, 121, 40 }; + ModesProba[8, 0] = new byte[] { 164, 50, 31, 137, 154, 133, 25, 35, 218 }; + ModesProba[8, 1] = new byte[] { 51, 103, 44, 131, 131, 123, 31, 6, 158 }; + ModesProba[8, 2] = new byte[] { 86, 40, 64, 135, 148, 224, 45, 183, 128 }; + ModesProba[8, 3] = new byte[] { 22, 26, 17, 131, 240, 154, 14, 1, 209 }; + ModesProba[8, 4] = new byte[] { 45, 16, 21, 91, 64, 222, 7, 1, 197 }; + ModesProba[8, 5] = new byte[] { 56, 21, 39, 155, 60, 138, 23, 102, 213 }; + ModesProba[8, 6] = new byte[] { 83, 12, 13, 54, 192, 255, 68, 47, 28 }; + ModesProba[8, 7] = new byte[] { 85, 26, 85, 85, 128, 128, 32, 146, 171 }; + ModesProba[8, 8] = new byte[] { 18, 11, 7, 63, 144, 171, 4, 4, 246 }; + ModesProba[8, 9] = new byte[] { 35, 27, 10, 146, 174, 171, 12, 26, 128 }; + ModesProba[9, 0] = new byte[] { 190, 80, 35, 99, 180, 80, 126, 54, 45 }; + ModesProba[9, 1] = new byte[] { 85, 126, 47, 87, 176, 51, 41, 20, 32 }; + ModesProba[9, 2] = new byte[] { 101, 75, 128, 139, 118, 146, 116, 128, 85 }; + ModesProba[9, 3] = new byte[] { 56, 41, 15, 176, 236, 85, 37, 9, 62 }; + ModesProba[9, 4] = new byte[] { 71, 30, 17, 119, 118, 255, 17, 18, 138 }; + ModesProba[9, 5] = new byte[] { 101, 38, 60, 138, 55, 70, 43, 26, 142 }; + ModesProba[9, 6] = new byte[] { 146, 36, 19, 30, 171, 255, 97, 27, 20 }; + ModesProba[9, 7] = new byte[] { 138, 45, 61, 62, 219, 1, 81, 188, 64 }; + ModesProba[9, 8] = new byte[] { 32, 41, 20, 117, 151, 142, 20, 21, 163 }; + ModesProba[9, 9] = new byte[] { 112, 19, 12, 61, 195, 128, 48, 4, 24 }; } } } diff --git a/src/ImageSharp/Formats/WebP/WebPConstants.cs b/src/ImageSharp/Formats/WebP/WebPConstants.cs index 179d6d77aa..4908c133b0 100644 --- a/src/ImageSharp/Formats/WebP/WebPConstants.cs +++ b/src/ImageSharp/Formats/WebP/WebPConstants.cs @@ -151,69 +151,6 @@ namespace SixLabors.ImageSharp.Formats.WebP 0 + (12 * Bps), 4 + (12 * Bps), 8 + (12 * Bps), 12 + (12 * Bps) }; - // 31 ^ clz(i) - public static readonly byte[] LogTable8bit = - { - 0, 0, 1, 1, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, - 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, - 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7 - }; - - // Paragraph 14.1 - public static readonly int[] DcTable = - { - 4, 5, 6, 7, 8, 9, 10, 10, - 11, 12, 13, 14, 15, 16, 17, 17, - 18, 19, 20, 20, 21, 21, 22, 22, - 23, 23, 24, 25, 25, 26, 27, 28, - 29, 30, 31, 32, 33, 34, 35, 36, - 37, 37, 38, 39, 40, 41, 42, 43, - 44, 45, 46, 46, 47, 48, 49, 50, - 51, 52, 53, 54, 55, 56, 57, 58, - 59, 60, 61, 62, 63, 64, 65, 66, - 67, 68, 69, 70, 71, 72, 73, 74, - 75, 76, 76, 77, 78, 79, 80, 81, - 82, 83, 84, 85, 86, 87, 88, 89, - 91, 93, 95, 96, 98, 100, 101, 102, - 104, 106, 108, 110, 112, 114, 116, 118, - 122, 124, 126, 128, 130, 132, 134, 136, - 138, 140, 143, 145, 148, 151, 154, 157 - }; - - // Paragraph 14.1 - public static readonly int[] AcTable = - { - 4, 5, 6, 7, 8, 9, 10, 11, - 12, 13, 14, 15, 16, 17, 18, 19, - 20, 21, 22, 23, 24, 25, 26, 27, - 28, 29, 30, 31, 32, 33, 34, 35, - 36, 37, 38, 39, 40, 41, 42, 43, - 44, 45, 46, 47, 48, 49, 50, 51, - 52, 53, 54, 55, 56, 57, 58, 60, - 62, 64, 66, 68, 70, 72, 74, 76, - 78, 80, 82, 84, 86, 88, 90, 92, - 94, 96, 98, 100, 102, 104, 106, 108, - 110, 112, 114, 116, 119, 122, 125, 128, - 131, 134, 137, 140, 143, 146, 149, 152, - 155, 158, 161, 164, 167, 170, 173, 177, - 181, 185, 189, 193, 197, 201, 205, 209, - 213, 217, 221, 225, 229, 234, 239, 245, - 249, 254, 259, 264, 269, 274, 279, 284 - }; - // Residual decoding (Paragraph 13.2 / 13.3) public static readonly byte[] Cat3 = { 173, 148, 140 }; public static readonly byte[] Cat4 = { 176, 155, 140, 135 }; @@ -233,282 +170,5 @@ namespace SixLabors.ImageSharp.Formats.WebP -7, 8, -8, -9 }; - - // Paragraph 13 - public static readonly byte[,,,] CoeffsUpdateProba = - { - { { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 176, 246, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 223, 241, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 249, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 244, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 234, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 246, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 239, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 251, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 251, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 253, 255, 254, 255, 255, 255, 255, 255, 255 }, - { 250, 255, 254, 255, 254, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - } - }, - { { { 217, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 225, 252, 241, 253, 255, 255, 254, 255, 255, 255, 255 }, - { 234, 250, 241, 250, 253, 255, 253, 254, 255, 255, 255 } - }, - { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 223, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 238, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 248, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 249, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 253, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 247, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 252, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 253, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - } - }, - { { { 186, 251, 250, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 234, 251, 244, 254, 255, 255, 255, 255, 255, 255, 255 }, - { 251, 251, 243, 253, 254, 255, 254, 255, 255, 255, 255 } - }, - { { 255, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 236, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 251, 253, 253, 254, 254, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - } - }, - { { { 248, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 250, 254, 252, 254, 255, 255, 255, 255, 255, 255, 255 }, - { 248, 254, 249, 253, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 246, 253, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 252, 254, 251, 254, 254, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 254, 252, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 248, 254, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 253, 255, 254, 254, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 245, 251, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 253, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 251, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 252, 253, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 252, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 249, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 254, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 253, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 250, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - }, - { { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 }, - { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255 } - } - } - }; - - // Paragraph 13.5: Default Token Probability Table. - public static readonly byte[,,,] DefaultCoeffsProba = - { - { - { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } - }, - { { 253, 136, 254, 255, 228, 219, 128, 128, 128, 128, 128 }, - { 189, 129, 242, 255, 227, 213, 255, 219, 128, 128, 128 }, - { 106, 126, 227, 252, 214, 209, 255, 255, 128, 128, 128 } - }, - { { 1, 98, 248, 255, 236, 226, 255, 255, 128, 128, 128 }, - { 181, 133, 238, 254, 221, 234, 255, 154, 128, 128, 128 }, - { 78, 134, 202, 247, 198, 180, 255, 219, 128, 128, 128 }, - }, - { { 1, 185, 249, 255, 243, 255, 128, 128, 128, 128, 128 }, - { 184, 150, 247, 255, 236, 224, 128, 128, 128, 128, 128 }, - { 77, 110, 216, 255, 236, 230, 128, 128, 128, 128, 128 }, - }, - { { 1, 101, 251, 255, 241, 255, 128, 128, 128, 128, 128 }, - { 170, 139, 241, 252, 236, 209, 255, 255, 128, 128, 128 }, - { 37, 116, 196, 243, 228, 255, 255, 255, 128, 128, 128 } - }, - { { 1, 204, 254, 255, 245, 255, 128, 128, 128, 128, 128 }, - { 207, 160, 250, 255, 238, 128, 128, 128, 128, 128, 128 }, - { 102, 103, 231, 255, 211, 171, 128, 128, 128, 128, 128 } - }, - { { 1, 152, 252, 255, 240, 255, 128, 128, 128, 128, 128 }, - { 177, 135, 243, 255, 234, 225, 128, 128, 128, 128, 128 }, - { 80, 129, 211, 255, 194, 224, 128, 128, 128, 128, 128 } - }, - { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 246, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 255, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } - } - }, - { - { { 198, 35, 237, 223, 193, 187, 162, 160, 145, 155, 62 }, - { 131, 45, 198, 221, 172, 176, 220, 157, 252, 221, 1 }, - { 68, 47, 146, 208, 149, 167, 221, 162, 255, 223, 128 } - }, - { { 1, 149, 241, 255, 221, 224, 255, 255, 128, 128, 128 }, - { 184, 141, 234, 253, 222, 220, 255, 199, 128, 128, 128 }, - { 81, 99, 181, 242, 176, 190, 249, 202, 255, 255, 128 } - }, - { { 1, 129, 232, 253, 214, 197, 242, 196, 255, 255, 128 }, - { 99, 121, 210, 250, 201, 198, 255, 202, 128, 128, 128 }, - { 23, 91, 163, 242, 170, 187, 247, 210, 255, 255, 128 } - }, - { { 1, 200, 246, 255, 234, 255, 128, 128, 128, 128, 128 }, - { 109, 178, 241, 255, 231, 245, 255, 255, 128, 128, 128 }, - { 44, 130, 201, 253, 205, 192, 255, 255, 128, 128, 128 } - }, - { { 1, 132, 239, 251, 219, 209, 255, 165, 128, 128, 128 }, - { 94, 136, 225, 251, 218, 190, 255, 255, 128, 128, 128 }, - { 22, 100, 174, 245, 186, 161, 255, 199, 128, 128, 128 } - }, - { { 1, 182, 249, 255, 232, 235, 128, 128, 128, 128, 128 }, - { 124, 143, 241, 255, 227, 234, 128, 128, 128, 128, 128 }, - { 35, 77, 181, 251, 193, 211, 255, 205, 128, 128, 128 } - }, - { { 1, 157, 247, 255, 236, 231, 255, 255, 128, 128, 128 }, - { 121, 141, 235, 255, 225, 227, 255, 255, 128, 128, 128 }, - { 45, 99, 188, 251, 195, 217, 255, 224, 128, 128, 128 } - }, - { { 1, 1, 251, 255, 213, 255, 128, 128, 128, 128, 128 }, - { 203, 1, 248, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 137, 1, 177, 255, 224, 255, 128, 128, 128, 128, 128 } - } - }, - { { { 253, 9, 248, 251, 207, 208, 255, 192, 128, 128, 128 }, - { 175, 13, 224, 243, 193, 185, 249, 198, 255, 255, 128 }, - { 73, 17, 171, 221, 161, 179, 236, 167, 255, 234, 128 } - }, - { { 1, 95, 247, 253, 212, 183, 255, 255, 128, 128, 128 }, - { 239, 90, 244, 250, 211, 209, 255, 255, 128, 128, 128 }, - { 155, 77, 195, 248, 188, 195, 255, 255, 128, 128, 128 } - }, - { { 1, 24, 239, 251, 218, 219, 255, 205, 128, 128, 128 }, - { 201, 51, 219, 255, 196, 186, 128, 128, 128, 128, 128 }, - { 69, 46, 190, 239, 201, 218, 255, 228, 128, 128, 128 } - }, - { { 1, 191, 251, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 223, 165, 249, 255, 213, 255, 128, 128, 128, 128, 128 }, - { 141, 124, 248, 255, 255, 128, 128, 128, 128, 128, 128 } - }, - { { 1, 16, 248, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 190, 36, 230, 255, 236, 255, 128, 128, 128, 128, 128 }, - { 149, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 } - }, - { { 1, 226, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 247, 192, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 240, 128, 255, 128, 128, 128, 128, 128, 128, 128, 128 } - }, - { { 1, 134, 252, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 213, 62, 250, 255, 255, 128, 128, 128, 128, 128, 128 }, - { 55, 93, 255, 128, 128, 128, 128, 128, 128, 128, 128 } - }, - { { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 } - } - }, - { - { { 202, 24, 213, 235, 186, 191, 220, 160, 240, 175, 255 }, - { 126, 38, 182, 232, 169, 184, 228, 174, 255, 187, 128 }, - { 61, 46, 138, 219, 151, 178, 240, 170, 255, 216, 128 } - }, - { { 1, 112, 230, 250, 199, 191, 247, 159, 255, 255, 128 }, - { 166, 109, 228, 252, 211, 215, 255, 174, 128, 128, 128 }, - { 39, 77, 162, 232, 172, 180, 245, 178, 255, 255, 128 } - }, - { { 1, 52, 220, 246, 198, 199, 249, 220, 255, 255, 128 }, - { 124, 74, 191, 243, 183, 193, 250, 221, 255, 255, 128 }, - { 24, 71, 130, 219, 154, 170, 243, 182, 255, 255, 128 } - }, - { { 1, 182, 225, 249, 219, 240, 255, 224, 128, 128, 128 }, - { 149, 150, 226, 252, 216, 205, 255, 171, 128, 128, 128 }, - { 28, 108, 170, 242, 183, 194, 254, 223, 255, 255, 128 } - }, - { { 1, 81, 230, 252, 204, 203, 255, 192, 128, 128, 128 }, - { 123, 102, 209, 247, 188, 196, 255, 233, 128, 128, 128 }, - { 20, 95, 153, 243, 164, 173, 255, 203, 128, 128, 128 } - }, - { { 1, 222, 248, 255, 216, 213, 128, 128, 128, 128, 128 }, - { 168, 175, 246, 252, 235, 205, 255, 255, 128, 128, 128 }, - { 47, 116, 215, 255, 211, 212, 255, 255, 128, 128, 128 } - }, - { { 1, 121, 236, 253, 212, 214, 255, 255, 128, 128, 128 }, - { 141, 84, 213, 252, 201, 202, 255, 219, 128, 128, 128 }, - { 42, 80, 160, 240, 162, 185, 255, 205, 128, 128, 128 } - }, - { { 1, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 244, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 }, - { 238, 1, 255, 128, 128, 128, 128, 128, 128, 128, 128 } - } - } - }; } } diff --git a/src/ImageSharp/Formats/WebP/WebPLossyDecoder.cs b/src/ImageSharp/Formats/WebP/WebPLossyDecoder.cs index 2826c624ba..6cefbc1190 100644 --- a/src/ImageSharp/Formats/WebP/WebPLossyDecoder.cs +++ b/src/ImageSharp/Formats/WebP/WebPLossyDecoder.cs @@ -18,28 +18,15 @@ namespace SixLabors.ImageSharp.Formats.WebP private readonly MemoryAllocator memoryAllocator; - private readonly byte[,][] bModesProba = new byte[10, 10][]; - public WebPLossyDecoder(Vp8BitReader bitReader, MemoryAllocator memoryAllocator) { this.memoryAllocator = memoryAllocator; this.bitReader = bitReader; - this.InitializeModesProbabilities(); } public void Decode(Buffer2D pixels, int width, int height, WebPImageInfo info) where TPixel : struct, IPixel { - // we need buffers for Y U and V in size of the image - // TODO: increase size to enable using all prediction blocks? (see https://tools.ietf.org/html/rfc6386#page-9 ) - Buffer2D yuvBufferCurrentFrame = this.memoryAllocator.Allocate2D(width, height); - - // TODO: var predictionBuffer - macro-block-sized with approximation of the portion of the image being reconstructed. - // those prediction values are the base, the values from DCT processing are added to that - - // TODO residue signal from DCT: 4x4 blocks of DCT transforms, 16Y, 4U, 4V - Vp8Profile vp8Profile = this.DecodeProfile(info.Vp8Profile); - // Paragraph 9.2: color space and clamp type follow. sbyte colorSpace = (sbyte)this.bitReader.ReadValue(1); sbyte clampType = (sbyte)this.bitReader.ReadValue(1); @@ -176,7 +163,7 @@ namespace SixLabors.ImageSharp.Formats.WebP int yMode = left[y]; for (int x = 0; x < 4; ++x) { - byte[] prob = this.bModesProba[top[x], yMode]; + byte[] prob = Vp8LookupTables.ModesProba[top[x], yMode]; int i = WebPConstants.YModesIntra4[this.bitReader.GetBit(prob[0])]; while (i > 0) { @@ -326,7 +313,7 @@ namespace SixLabors.ImageSharp.Formats.WebP if (mbx >= dec.MbWidth - 1) { // On rightmost border. - LossyUtils.Memset(topRight, topYuv.Y[15],0, 4); + LossyUtils.Memset(topRight, topYuv.Y[15], 0, 4); } else { @@ -1242,20 +1229,20 @@ namespace SixLabors.ImageSharp.Formats.WebP } Vp8QuantMatrix m = decoder.DeQuantMatrices[i]; - m.Y1Mat[0] = WebPConstants.DcTable[Clip(q + dqy1Dc, 127)]; - m.Y1Mat[1] = WebPConstants.AcTable[Clip(q + 0, 127)]; - m.Y2Mat[0] = WebPConstants.DcTable[Clip(q + dqy2Dc, 127)] * 2; + m.Y1Mat[0] = Vp8LookupTables.DcTable[Clip(q + dqy1Dc, 127)]; + m.Y1Mat[1] = Vp8LookupTables.AcTable[Clip(q + 0, 127)]; + m.Y2Mat[0] = Vp8LookupTables.DcTable[Clip(q + dqy2Dc, 127)] * 2; // For all x in [0..284], x*155/100 is bitwise equal to (x*101581) >> 16. // The smallest precision for that is '(x*6349) >> 12' but 16 is a good word size. - m.Y2Mat[1] = (WebPConstants.AcTable[Clip(q + dqy2Ac, 127)] * 101581) >> 16; + m.Y2Mat[1] = (Vp8LookupTables.AcTable[Clip(q + dqy2Ac, 127)] * 101581) >> 16; if (m.Y2Mat[1] < 8) { m.Y2Mat[1] = 8; } - m.UvMat[0] = WebPConstants.DcTable[Clip(q + dquvDc, 117)]; - m.UvMat[1] = WebPConstants.AcTable[Clip(q + dquvAc, 127)]; + m.UvMat[0] = Vp8LookupTables.DcTable[Clip(q + dquvDc, 117)]; + m.UvMat[1] = Vp8LookupTables.AcTable[Clip(q + dquvAc, 127)]; // For dithering strength evaluation. m.UvQuant = q + dquvAc; @@ -1274,10 +1261,10 @@ namespace SixLabors.ImageSharp.Formats.WebP { for (int p = 0; p < WebPConstants.NumProbas; ++p) { - byte prob = WebPConstants.CoeffsUpdateProba[t, b, c, p]; + byte prob = Vp8LookupTables.CoeffsUpdateProba[t, b, c, p]; int v = this.bitReader.GetBit(prob) != 0 ? (int)this.bitReader.ReadValue(8) - : WebPConstants.DefaultCoeffsProba[t, b, c, p]; + : Vp8LookupTables.DefaultCoeffsProba[t, b, c, p]; proba.Bands[t, b].Probabilities[c].Probabilities[p] = (byte)v; } } @@ -1427,121 +1414,5 @@ namespace SixLabors.ImageSharp.Formats.WebP { return value < 0 ? 0 : value > max ? max : value; } - - // TODO: move to LookupTables - private void InitializeModesProbabilities() - { - // Paragraph 11.5 - this.bModesProba[0, 0] = new byte[] { 231, 120, 48, 89, 115, 113, 120, 152, 112 }; - this.bModesProba[0, 1] = new byte[] { 152, 179, 64, 126, 170, 118, 46, 70, 95 }; - this.bModesProba[0, 2] = new byte[] { 175, 69, 143, 80, 85, 82, 72, 155, 103 }; - this.bModesProba[0, 3] = new byte[] { 56, 58, 10, 171, 218, 189, 17, 13, 152 }; - this.bModesProba[0, 4] = new byte[] { 114, 26, 17, 163, 44, 195, 21, 10, 173 }; - this.bModesProba[0, 5] = new byte[] { 121, 24, 80, 195, 26, 62, 44, 64, 85 }; - this.bModesProba[0, 6] = new byte[] { 144, 71, 10, 38, 171, 213, 144, 34, 26 }; - this.bModesProba[0, 7] = new byte[] { 170, 46, 55, 19, 136, 160, 33, 206, 71 }; - this.bModesProba[0, 8] = new byte[] { 63, 20, 8, 114, 114, 208, 12, 9, 226 }; - this.bModesProba[0, 9] = new byte[] { 81, 40, 11, 96, 182, 84, 29, 16, 36 }; - this.bModesProba[1, 0] = new byte[] { 134, 183, 89, 137, 98, 101, 106, 165, 148 }; - this.bModesProba[1, 1] = new byte[] { 72, 187, 100, 130, 157, 111, 32, 75, 80 }; - this.bModesProba[1, 2] = new byte[] { 66, 102, 167, 99, 74, 62, 40, 234, 128 }; - this.bModesProba[1, 3] = new byte[] { 41, 53, 9, 178, 241, 141, 26, 8, 107 }; - this.bModesProba[1, 4] = new byte[] { 74, 43, 26, 146, 73, 166, 49, 23, 157 }; - this.bModesProba[1, 5] = new byte[] { 65, 38, 105, 160, 51, 52, 31, 115, 128 }; - this.bModesProba[1, 6] = new byte[] { 104, 79, 12, 27, 217, 255, 87, 17, 7 }; - this.bModesProba[1, 7] = new byte[] { 87, 68, 71, 44, 114, 51, 15, 186, 23 }; - this.bModesProba[1, 8] = new byte[] { 47, 41, 14, 110, 182, 183, 21, 17, 194 }; - this.bModesProba[1, 9] = new byte[] { 66, 45, 25, 102, 197, 189, 23, 18, 22 }; - this.bModesProba[2, 0] = new byte[] { 88, 88, 147, 150, 42, 46, 45, 196, 205 }; - this.bModesProba[2, 1] = new byte[] { 43, 97, 183, 117, 85, 38, 35, 179, 61 }; - this.bModesProba[2, 2] = new byte[] { 39, 53, 200, 87, 26, 21, 43, 232, 171 }; - this.bModesProba[2, 3] = new byte[] { 56, 34, 51, 104, 114, 102, 29, 93, 77 }; - this.bModesProba[2, 4] = new byte[] { 39, 28, 85, 171, 58, 165, 90, 98, 64 }; - this.bModesProba[2, 5] = new byte[] { 34, 22, 116, 206, 23, 34, 43, 166, 73 }; - this.bModesProba[2, 6] = new byte[] { 107, 54, 32, 26, 51, 1, 81, 43, 31 }; - this.bModesProba[2, 7] = new byte[] { 68, 25, 106, 22, 64, 171, 36, 225, 114 }; - this.bModesProba[2, 8] = new byte[] { 34, 19, 21, 102, 132, 188, 16, 76, 124 }; - this.bModesProba[2, 9] = new byte[] { 62, 18, 78, 95, 85, 57, 50, 48, 51 }; - this.bModesProba[3, 0] = new byte[] { 193, 101, 35, 159, 215, 111, 89, 46, 111 }; - this.bModesProba[3, 1] = new byte[] { 60, 148, 31, 172, 219, 228, 21, 18, 111 }; - this.bModesProba[3, 2] = new byte[] { 112, 113, 77, 85, 179, 255, 38, 120, 114 }; - this.bModesProba[3, 3] = new byte[] { 40, 42, 1, 196, 245, 209, 10, 25, 109 }; - this.bModesProba[3, 4] = new byte[] { 88, 43, 29, 140, 166, 213, 37, 43, 154 }; - this.bModesProba[3, 5] = new byte[] { 61, 63, 30, 155, 67, 45, 68, 1, 209 }; - this.bModesProba[3, 6] = new byte[] { 100, 80, 8, 43, 154, 1, 51, 26, 71 }; - this.bModesProba[3, 7] = new byte[] { 142, 78, 78, 16, 255, 128, 34, 197, 171 }; - this.bModesProba[3, 8] = new byte[] { 41, 40, 5, 102, 211, 183, 4, 1, 221 }; - this.bModesProba[3, 9] = new byte[] { 51, 50, 17, 168, 209, 192, 23, 25, 82 }; - this.bModesProba[4, 0] = new byte[] { 138, 31, 36, 171, 27, 166, 38, 44, 229 }; - this.bModesProba[4, 1] = new byte[] { 67, 87, 58, 169, 82, 115, 26, 59, 179 }; - this.bModesProba[4, 2] = new byte[] { 63, 59, 90, 180, 59, 166, 93, 73, 154 }; - this.bModesProba[4, 3] = new byte[] { 40, 40, 21, 116, 143, 209, 34, 39, 175 }; - this.bModesProba[4, 4] = new byte[] { 47, 15, 16, 183, 34, 223, 49, 45, 183 }; - this.bModesProba[4, 5] = new byte[] { 46, 17, 33, 183, 6, 98, 15, 32, 183 }; - this.bModesProba[4, 6] = new byte[] { 57, 46, 22, 24, 128, 1, 54, 17, 37 }; - this.bModesProba[4, 7] = new byte[] { 65, 32, 73, 115, 28, 128, 23, 128, 205 }; - this.bModesProba[4, 8] = new byte[] { 40, 3, 9, 115, 51, 192, 18, 6, 223 }; - this.bModesProba[4, 9] = new byte[] { 87, 37, 9, 115, 59, 77, 64, 21, 47 }; - this.bModesProba[5, 0] = new byte[] { 104, 55, 44, 218, 9, 54, 53, 130, 226 }; - this.bModesProba[5, 1] = new byte[] { 64, 90, 70, 205, 40, 41, 23, 26, 57 }; - this.bModesProba[5, 2] = new byte[] { 54, 57, 112, 184, 5, 41, 38, 166, 213 }; - this.bModesProba[5, 3] = new byte[] { 30, 34, 26, 133, 152, 116, 10, 32, 134 }; - this.bModesProba[5, 4] = new byte[] { 39, 19, 53, 221, 26, 114, 32, 73, 255 }; - this.bModesProba[5, 5] = new byte[] { 31, 9, 65, 234, 2, 15, 1, 118, 73 }; - this.bModesProba[5, 6] = new byte[] { 75, 32, 12, 51, 192, 255, 160, 43, 51 }; - this.bModesProba[5, 7] = new byte[] { 88, 31, 35, 67, 102, 85, 55, 186, 85 }; - this.bModesProba[5, 8] = new byte[] { 56, 21, 23, 111, 59, 205, 45, 37, 192 }; - this.bModesProba[5, 9] = new byte[] { 55, 38, 70, 124, 73, 102, 1, 34, 98 }; - this.bModesProba[6, 0] = new byte[] { 125, 98, 42, 88, 104, 85, 117, 175, 82 }; - this.bModesProba[6, 1] = new byte[] { 95, 84, 53, 89, 128, 100, 113, 101, 45 }; - this.bModesProba[6, 2] = new byte[] { 75, 79, 123, 47, 51, 128, 81, 171, 1 }; - this.bModesProba[6, 3] = new byte[] { 57, 17, 5, 71, 102, 57, 53, 41, 49 }; - this.bModesProba[6, 4] = new byte[] { 38, 33, 13, 121, 57, 73, 26, 1, 85 }; - this.bModesProba[6, 5] = new byte[] { 41, 10, 67, 138, 77, 110, 90, 47, 114 }; - this.bModesProba[6, 6] = new byte[] { 115, 21, 2, 10, 102, 255, 166, 23, 6 }; - this.bModesProba[6, 7] = new byte[] { 101, 29, 16, 10, 85, 128, 101, 196, 26 }; - this.bModesProba[6, 8] = new byte[] { 57, 18, 10, 102, 102, 213, 34, 20, 43 }; - this.bModesProba[6, 9] = new byte[] { 117, 20, 15, 36, 163, 128, 68, 1, 26 }; - this.bModesProba[7, 0] = new byte[] { 102, 61, 71, 37, 34, 53, 31, 243, 192 }; - this.bModesProba[7, 1] = new byte[] { 69, 60, 71, 38, 73, 119, 28, 222, 37 }; - this.bModesProba[7, 2] = new byte[] { 68, 45, 128, 34, 1, 47, 11, 245, 171 }; - this.bModesProba[7, 3] = new byte[] { 62, 17, 19, 70, 146, 85, 55, 62, 70 }; - this.bModesProba[7, 4] = new byte[] { 37, 43, 37, 154, 100, 163, 85, 160, 1 }; - this.bModesProba[7, 5] = new byte[] { 63, 9, 92, 136, 28, 64, 32, 201, 85 }; - this.bModesProba[7, 6] = new byte[] { 75, 15, 9, 9, 64, 255, 184, 119, 16 }; - this.bModesProba[7, 7] = new byte[] { 86, 6, 28, 5, 64, 255, 25, 248, 1 }; - this.bModesProba[7, 8] = new byte[] { 56, 8, 17, 132, 137, 255, 55, 116, 128 }; - this.bModesProba[7, 9] = new byte[] { 58, 15, 20, 82, 135, 57, 26, 121, 40 }; - this.bModesProba[8, 0] = new byte[] { 164, 50, 31, 137, 154, 133, 25, 35, 218 }; - this.bModesProba[8, 1] = new byte[] { 51, 103, 44, 131, 131, 123, 31, 6, 158 }; - this.bModesProba[8, 2] = new byte[] { 86, 40, 64, 135, 148, 224, 45, 183, 128 }; - this.bModesProba[8, 3] = new byte[] { 22, 26, 17, 131, 240, 154, 14, 1, 209 }; - this.bModesProba[8, 4] = new byte[] { 45, 16, 21, 91, 64, 222, 7, 1, 197 }; - this.bModesProba[8, 5] = new byte[] { 56, 21, 39, 155, 60, 138, 23, 102, 213 }; - this.bModesProba[8, 6] = new byte[] { 83, 12, 13, 54, 192, 255, 68, 47, 28 }; - this.bModesProba[8, 7] = new byte[] { 85, 26, 85, 85, 128, 128, 32, 146, 171 }; - this.bModesProba[8, 8] = new byte[] { 18, 11, 7, 63, 144, 171, 4, 4, 246 }; - this.bModesProba[8, 9] = new byte[] { 35, 27, 10, 146, 174, 171, 12, 26, 128 }; - this.bModesProba[9, 0] = new byte[] { 190, 80, 35, 99, 180, 80, 126, 54, 45 }; - this.bModesProba[9, 1] = new byte[] { 85, 126, 47, 87, 176, 51, 41, 20, 32 }; - this.bModesProba[9, 2] = new byte[] { 101, 75, 128, 139, 118, 146, 116, 128, 85 }; - this.bModesProba[9, 3] = new byte[] { 56, 41, 15, 176, 236, 85, 37, 9, 62 }; - this.bModesProba[9, 4] = new byte[] { 71, 30, 17, 119, 118, 255, 17, 18, 138 }; - this.bModesProba[9, 5] = new byte[] { 101, 38, 60, 138, 55, 70, 43, 26, 142 }; - this.bModesProba[9, 6] = new byte[] { 146, 36, 19, 30, 171, 255, 97, 27, 20 }; - this.bModesProba[9, 7] = new byte[] { 138, 45, 61, 62, 219, 1, 81, 188, 64 }; - this.bModesProba[9, 8] = new byte[] { 32, 41, 20, 117, 151, 142, 20, 21, 163 }; - this.bModesProba[9, 9] = new byte[] { 112, 19, 12, 61, 195, 128, 48, 4, 24 }; - } - - } - - struct YUVPixel - { - public byte Y { get; } - - public byte U { get; } - - public byte V { get; } } }