| // Copyright 2015 Google Inc. All Rights Reserved. |
| // |
| // Use of this source code is governed by a BSD-style license |
| // that can be found in the COPYING file in the root of the source |
| // tree. An additional intellectual property rights grant can be found |
| // in the file PATENTS. All contributing project authors may |
| // be found in the AUTHORS file in the root of the source tree. |
| // ----------------------------------------------------------------------------- |
| // |
| // Image transform methods for lossless encoder. |
| // |
| // Authors: Vikas Arora (vikaas.arora@gmail.com) |
| // Jyrki Alakuijala (jyrki@google.com) |
| // Urvang Joshi (urvang@google.com) |
| |
| #include "src/dsp/dsp.h" |
| |
| #include <assert.h> |
| #include <math.h> |
| #include <stdlib.h> |
| #include "src/dec/vp8li_dec.h" |
| #include "src/utils/endian_inl_utils.h" |
| #include "src/dsp/lossless.h" |
| #include "src/dsp/lossless_common.h" |
| #include "src/dsp/yuv.h" |
| |
| // lookup table for small values of log2(int) |
| const float kLog2Table[LOG_LOOKUP_IDX_MAX] = { |
| 0.0000000000000000f, 0.0000000000000000f, |
| 1.0000000000000000f, 1.5849625007211560f, |
| 2.0000000000000000f, 2.3219280948873621f, |
| 2.5849625007211560f, 2.8073549220576041f, |
| 3.0000000000000000f, 3.1699250014423121f, |
| 3.3219280948873621f, 3.4594316186372973f, |
| 3.5849625007211560f, 3.7004397181410921f, |
| 3.8073549220576041f, 3.9068905956085187f, |
| 4.0000000000000000f, 4.0874628412503390f, |
| 4.1699250014423121f, 4.2479275134435852f, |
| 4.3219280948873626f, 4.3923174227787606f, |
| 4.4594316186372973f, 4.5235619560570130f, |
| 4.5849625007211560f, 4.6438561897747243f, |
| 4.7004397181410917f, 4.7548875021634682f, |
| 4.8073549220576037f, 4.8579809951275718f, |
| 4.9068905956085187f, 4.9541963103868749f, |
| 5.0000000000000000f, 5.0443941193584533f, |
| 5.0874628412503390f, 5.1292830169449663f, |
| 5.1699250014423121f, 5.2094533656289501f, |
| 5.2479275134435852f, 5.2854022188622487f, |
| 5.3219280948873626f, 5.3575520046180837f, |
| 5.3923174227787606f, 5.4262647547020979f, |
| 5.4594316186372973f, 5.4918530963296747f, |
| 5.5235619560570130f, 5.5545888516776376f, |
| 5.5849625007211560f, 5.6147098441152083f, |
| 5.6438561897747243f, 5.6724253419714951f, |
| 5.7004397181410917f, 5.7279204545631987f, |
| 5.7548875021634682f, 5.7813597135246599f, |
| 5.8073549220576037f, 5.8328900141647412f, |
| 5.8579809951275718f, 5.8826430493618415f, |
| 5.9068905956085187f, 5.9307373375628866f, |
| 5.9541963103868749f, 5.9772799234999167f, |
| 6.0000000000000000f, 6.0223678130284543f, |
| 6.0443941193584533f, 6.0660891904577720f, |
| 6.0874628412503390f, 6.1085244567781691f, |
| 6.1292830169449663f, 6.1497471195046822f, |
| 6.1699250014423121f, 6.1898245588800175f, |
| 6.2094533656289501f, 6.2288186904958804f, |
| 6.2479275134435852f, 6.2667865406949010f, |
| 6.2854022188622487f, 6.3037807481771030f, |
| 6.3219280948873626f, 6.3398500028846243f, |
| 6.3575520046180837f, 6.3750394313469245f, |
| 6.3923174227787606f, 6.4093909361377017f, |
| 6.4262647547020979f, 6.4429434958487279f, |
| 6.4594316186372973f, 6.4757334309663976f, |
| 6.4918530963296747f, 6.5077946401986963f, |
| 6.5235619560570130f, 6.5391588111080309f, |
| 6.5545888516776376f, 6.5698556083309478f, |
| 6.5849625007211560f, 6.5999128421871278f, |
| 6.6147098441152083f, 6.6293566200796094f, |
| 6.6438561897747243f, 6.6582114827517946f, |
| 6.6724253419714951f, 6.6865005271832185f, |
| 6.7004397181410917f, 6.7142455176661224f, |
| 6.7279204545631987f, 6.7414669864011464f, |
| 6.7548875021634682f, 6.7681843247769259f, |
| 6.7813597135246599f, 6.7944158663501061f, |
| 6.8073549220576037f, 6.8201789624151878f, |
| 6.8328900141647412f, 6.8454900509443747f, |
| 6.8579809951275718f, 6.8703647195834047f, |
| 6.8826430493618415f, 6.8948177633079437f, |
| 6.9068905956085187f, 6.9188632372745946f, |
| 6.9307373375628866f, 6.9425145053392398f, |
| 6.9541963103868749f, 6.9657842846620869f, |
| 6.9772799234999167f, 6.9886846867721654f, |
| 7.0000000000000000f, 7.0112272554232539f, |
| 7.0223678130284543f, 7.0334230015374501f, |
| 7.0443941193584533f, 7.0552824355011898f, |
| 7.0660891904577720f, 7.0768155970508308f, |
| 7.0874628412503390f, 7.0980320829605263f, |
| 7.1085244567781691f, 7.1189410727235076f, |
| 7.1292830169449663f, 7.1395513523987936f, |
| 7.1497471195046822f, 7.1598713367783890f, |
| 7.1699250014423121f, 7.1799090900149344f, |
| 7.1898245588800175f, 7.1996723448363644f, |
| 7.2094533656289501f, 7.2191685204621611f, |
| 7.2288186904958804f, 7.2384047393250785f, |
| 7.2479275134435852f, 7.2573878426926521f, |
| 7.2667865406949010f, 7.2761244052742375f, |
| 7.2854022188622487f, 7.2946207488916270f, |
| 7.3037807481771030f, 7.3128829552843557f, |
| 7.3219280948873626f, 7.3309168781146167f, |
| 7.3398500028846243f, 7.3487281542310771f, |
| 7.3575520046180837f, 7.3663222142458160f, |
| 7.3750394313469245f, 7.3837042924740519f, |
| 7.3923174227787606f, 7.4008794362821843f, |
| 7.4093909361377017f, 7.4178525148858982f, |
| 7.4262647547020979f, 7.4346282276367245f, |
| 7.4429434958487279f, 7.4512111118323289f, |
| 7.4594316186372973f, 7.4676055500829976f, |
| 7.4757334309663976f, 7.4838157772642563f, |
| 7.4918530963296747f, 7.4998458870832056f, |
| 7.5077946401986963f, 7.5156998382840427f, |
| 7.5235619560570130f, 7.5313814605163118f, |
| 7.5391588111080309f, 7.5468944598876364f, |
| 7.5545888516776376f, 7.5622424242210728f, |
| 7.5698556083309478f, 7.5774288280357486f, |
| 7.5849625007211560f, 7.5924570372680806f, |
| 7.5999128421871278f, 7.6073303137496104f, |
| 7.6147098441152083f, 7.6220518194563764f, |
| 7.6293566200796094f, 7.6366246205436487f, |
| 7.6438561897747243f, 7.6510516911789281f, |
| 7.6582114827517946f, 7.6653359171851764f, |
| 7.6724253419714951f, 7.6794800995054464f, |
| 7.6865005271832185f, 7.6934869574993252f, |
| 7.7004397181410917f, 7.7073591320808825f, |
| 7.7142455176661224f, 7.7210991887071855f, |
| 7.7279204545631987f, 7.7347096202258383f, |
| 7.7414669864011464f, 7.7481928495894605f, |
| 7.7548875021634682f, 7.7615512324444795f, |
| 7.7681843247769259f, 7.7747870596011736f, |
| 7.7813597135246599f, 7.7879025593914317f, |
| 7.7944158663501061f, 7.8008998999203047f, |
| 7.8073549220576037f, 7.8137811912170374f, |
| 7.8201789624151878f, 7.8265484872909150f, |
| 7.8328900141647412f, 7.8392037880969436f, |
| 7.8454900509443747f, 7.8517490414160571f, |
| 7.8579809951275718f, 7.8641861446542797f, |
| 7.8703647195834047f, 7.8765169465649993f, |
| 7.8826430493618415f, 7.8887432488982591f, |
| 7.8948177633079437f, 7.9008668079807486f, |
| 7.9068905956085187f, 7.9128893362299619f, |
| 7.9188632372745946f, 7.9248125036057812f, |
| 7.9307373375628866f, 7.9366379390025709f, |
| 7.9425145053392398f, 7.9483672315846778f, |
| 7.9541963103868749f, 7.9600019320680805f, |
| 7.9657842846620869f, 7.9715435539507719f, |
| 7.9772799234999167f, 7.9829935746943103f, |
| 7.9886846867721654f, 7.9943534368588577f |
| }; |
| |
| const float kSLog2Table[LOG_LOOKUP_IDX_MAX] = { |
| 0.00000000f, 0.00000000f, 2.00000000f, 4.75488750f, |
| 8.00000000f, 11.60964047f, 15.50977500f, 19.65148445f, |
| 24.00000000f, 28.52932501f, 33.21928095f, 38.05374781f, |
| 43.01955001f, 48.10571634f, 53.30296891f, 58.60335893f, |
| 64.00000000f, 69.48686830f, 75.05865003f, 80.71062276f, |
| 86.43856190f, 92.23866588f, 98.10749561f, 104.04192499f, |
| 110.03910002f, 116.09640474f, 122.21143267f, 128.38196256f, |
| 134.60593782f, 140.88144886f, 147.20671787f, 153.58008562f, |
| 160.00000000f, 166.46500594f, 172.97373660f, 179.52490559f, |
| 186.11730005f, 192.74977453f, 199.42124551f, 206.13068654f, |
| 212.87712380f, 219.65963219f, 226.47733176f, 233.32938445f, |
| 240.21499122f, 247.13338933f, 254.08384998f, 261.06567603f, |
| 268.07820003f, 275.12078236f, 282.19280949f, 289.29369244f, |
| 296.42286534f, 303.57978409f, 310.76392512f, 317.97478424f, |
| 325.21187564f, 332.47473081f, 339.76289772f, 347.07593991f, |
| 354.41343574f, 361.77497759f, 369.16017124f, 376.56863518f, |
| 384.00000000f, 391.45390785f, 398.93001188f, 406.42797576f, |
| 413.94747321f, 421.48818752f, 429.04981119f, 436.63204548f, |
| 444.23460010f, 451.85719280f, 459.49954906f, 467.16140179f, |
| 474.84249102f, 482.54256363f, 490.26137307f, 497.99867911f, |
| 505.75424759f, 513.52785023f, 521.31926438f, 529.12827280f, |
| 536.95466351f, 544.79822957f, 552.65876890f, 560.53608414f, |
| 568.42998244f, 576.34027536f, 584.26677867f, 592.20931226f, |
| 600.16769996f, 608.14176943f, 616.13135206f, 624.13628279f, |
| 632.15640007f, 640.19154569f, 648.24156472f, 656.30630539f, |
| 664.38561898f, 672.47935976f, 680.58738488f, 688.70955430f, |
| 696.84573069f, 704.99577935f, 713.15956818f, 721.33696754f, |
| 729.52785023f, 737.73209140f, 745.94956849f, 754.18016116f, |
| 762.42375127f, 770.68022275f, 778.94946161f, 787.23135586f, |
| 795.52579543f, 803.83267219f, 812.15187982f, 820.48331383f, |
| 828.82687147f, 837.18245171f, 845.54995518f, 853.92928416f, |
| 862.32034249f, 870.72303558f, 879.13727036f, 887.56295522f, |
| 896.00000000f, 904.44831595f, 912.90781569f, 921.37841320f, |
| 929.86002376f, 938.35256392f, 946.85595152f, 955.37010560f, |
| 963.89494641f, 972.43039537f, 980.97637504f, 989.53280911f, |
| 998.09962237f, 1006.67674069f, 1015.26409097f, 1023.86160116f, |
| 1032.46920021f, 1041.08681805f, 1049.71438560f, 1058.35183469f, |
| 1066.99909811f, 1075.65610955f, 1084.32280357f, 1092.99911564f, |
| 1101.68498204f, 1110.38033993f, 1119.08512727f, 1127.79928282f, |
| 1136.52274614f, 1145.25545758f, 1153.99735821f, 1162.74838989f, |
| 1171.50849518f, 1180.27761738f, 1189.05570047f, 1197.84268914f, |
| 1206.63852876f, 1215.44316535f, 1224.25654560f, 1233.07861684f, |
| 1241.90932703f, 1250.74862473f, 1259.59645914f, 1268.45278005f, |
| 1277.31753781f, 1286.19068338f, 1295.07216828f, 1303.96194457f, |
| 1312.85996488f, 1321.76618236f, 1330.68055071f, 1339.60302413f, |
| 1348.53355734f, 1357.47210556f, 1366.41862452f, 1375.37307041f, |
| 1384.33539991f, 1393.30557020f, 1402.28353887f, 1411.26926400f, |
| 1420.26270412f, 1429.26381818f, 1438.27256558f, 1447.28890615f, |
| 1456.31280014f, 1465.34420819f, 1474.38309138f, 1483.42941118f, |
| 1492.48312945f, 1501.54420843f, 1510.61261078f, 1519.68829949f, |
| 1528.77123795f, 1537.86138993f, 1546.95871952f, 1556.06319119f, |
| 1565.17476976f, 1574.29342040f, 1583.41910860f, 1592.55180020f, |
| 1601.69146137f, 1610.83805860f, 1619.99155871f, 1629.15192882f, |
| 1638.31913637f, 1647.49314911f, 1656.67393509f, 1665.86146266f, |
| 1675.05570047f, 1684.25661744f, 1693.46418280f, 1702.67836605f, |
| 1711.89913698f, 1721.12646563f, 1730.36032233f, 1739.60067768f, |
| 1748.84750254f, 1758.10076802f, 1767.36044551f, 1776.62650662f, |
| 1785.89892323f, 1795.17766747f, 1804.46271172f, 1813.75402857f, |
| 1823.05159087f, 1832.35537170f, 1841.66534438f, 1850.98148244f, |
| 1860.30375965f, 1869.63214999f, 1878.96662767f, 1888.30716711f, |
| 1897.65374295f, 1907.00633003f, 1916.36490342f, 1925.72943838f, |
| 1935.09991037f, 1944.47629506f, 1953.85856831f, 1963.24670620f, |
| 1972.64068498f, 1982.04048108f, 1991.44607117f, 2000.85743204f, |
| 2010.27454072f, 2019.69737440f, 2029.12591044f, 2038.56012640f |
| }; |
| |
| const VP8LPrefixCode kPrefixEncodeCode[PREFIX_LOOKUP_IDX_MAX] = { |
| { 0, 0}, { 0, 0}, { 1, 0}, { 2, 0}, { 3, 0}, { 4, 1}, { 4, 1}, { 5, 1}, |
| { 5, 1}, { 6, 2}, { 6, 2}, { 6, 2}, { 6, 2}, { 7, 2}, { 7, 2}, { 7, 2}, |
| { 7, 2}, { 8, 3}, { 8, 3}, { 8, 3}, { 8, 3}, { 8, 3}, { 8, 3}, { 8, 3}, |
| { 8, 3}, { 9, 3}, { 9, 3}, { 9, 3}, { 9, 3}, { 9, 3}, { 9, 3}, { 9, 3}, |
| { 9, 3}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, |
| {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, {10, 4}, |
| {10, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, |
| {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, {11, 4}, |
| {11, 4}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, |
| {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, |
| {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, |
| {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, {12, 5}, |
| {12, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, |
| {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, |
| {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, |
| {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, {13, 5}, |
| {13, 5}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, |
| {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, |
| {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, |
| {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, |
| {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, |
| {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, |
| {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, |
| {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, {14, 6}, |
| {14, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, |
| {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, |
| {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, |
| {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, |
| {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, |
| {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, |
| {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, |
| {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, {15, 6}, |
| {15, 6}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, {16, 7}, |
| {16, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, {17, 7}, |
| }; |
| |
| const uint8_t kPrefixEncodeExtraBitsValue[PREFIX_LOOKUP_IDX_MAX] = { |
| 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 2, 3, 0, 1, 2, 3, |
| 0, 1, 2, 3, 4, 5, 6, 7, 0, 1, 2, 3, 4, 5, 6, 7, |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
| 0, 1, 2, 3, 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, |
| 0, 1, 2, 3, 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, |
| 0, 1, 2, 3, 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, 59, 60, 61, 62, 63, |
| 0, 1, 2, 3, 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, 59, 60, 61, 62, 63, |
| 0, 1, 2, 3, 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, 59, 60, 61, 62, 63, |
| 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, |
| 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, |
| 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, |
| 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, |
| 127, |
| 0, 1, 2, 3, 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, 59, 60, 61, 62, 63, |
| 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, |
| 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, |
| 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, |
| 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126 |
| }; |
| |
| static float FastSLog2Slow_C(uint32_t v) { |
| assert(v >= LOG_LOOKUP_IDX_MAX); |
| if (v < APPROX_LOG_WITH_CORRECTION_MAX) { |
| #if !defined(WEBP_HAVE_SLOW_CLZ_CTZ) |
| // use clz if available |
| const int log_cnt = BitsLog2Floor(v) - 7; |
| const uint32_t y = 1 << log_cnt; |
| int correction = 0; |
| const float v_f = (float)v; |
| const uint32_t orig_v = v; |
| v >>= log_cnt; |
| #else |
| int log_cnt = 0; |
| uint32_t y = 1; |
| int correction = 0; |
| const float v_f = (float)v; |
| const uint32_t orig_v = v; |
| do { |
| ++log_cnt; |
| v = v >> 1; |
| y = y << 1; |
| } while (v >= LOG_LOOKUP_IDX_MAX); |
| #endif |
| // vf = (2^log_cnt) * Xf; where y = 2^log_cnt and Xf < 256 |
| // Xf = floor(Xf) * (1 + (v % y) / v) |
| // log2(Xf) = log2(floor(Xf)) + log2(1 + (v % y) / v) |
| // The correction factor: log(1 + d) ~ d; for very small d values, so |
| // log2(1 + (v % y) / v) ~ LOG_2_RECIPROCAL * (v % y)/v |
| // LOG_2_RECIPROCAL ~ 23/16 |
| correction = (23 * (orig_v & (y - 1))) >> 4; |
| return v_f * (kLog2Table[v] + log_cnt) + correction; |
| } else { |
| return (float)(LOG_2_RECIPROCAL * v * log((double)v)); |
| } |
| } |
| |
| static float FastLog2Slow_C(uint32_t v) { |
| assert(v >= LOG_LOOKUP_IDX_MAX); |
| if (v < APPROX_LOG_WITH_CORRECTION_MAX) { |
| #if !defined(WEBP_HAVE_SLOW_CLZ_CTZ) |
| // use clz if available |
| const int log_cnt = BitsLog2Floor(v) - 7; |
| const uint32_t y = 1 << log_cnt; |
| const uint32_t orig_v = v; |
| double log_2; |
| v >>= log_cnt; |
| #else |
| int log_cnt = 0; |
| uint32_t y = 1; |
| const uint32_t orig_v = v; |
| double log_2; |
| do { |
| ++log_cnt; |
| v = v >> 1; |
| y = y << 1; |
| } while (v >= LOG_LOOKUP_IDX_MAX); |
| #endif |
| log_2 = kLog2Table[v] + log_cnt; |
| if (orig_v >= APPROX_LOG_MAX) { |
| // Since the division is still expensive, add this correction factor only |
| // for large values of 'v'. |
| const int correction = (23 * (orig_v & (y - 1))) >> 4; |
| log_2 += (double)correction / orig_v; |
| } |
| return (float)log_2; |
| } else { |
| return (float)(LOG_2_RECIPROCAL * log((double)v)); |
| } |
| } |
| |
| //------------------------------------------------------------------------------ |
| // Methods to calculate Entropy (Shannon). |
| |
| // Compute the combined Shanon's entropy for distribution {X} and {X+Y} |
| static float CombinedShannonEntropy_C(const int X[256], const int Y[256]) { |
| int i; |
| double retval = 0.; |
| int sumX = 0, sumXY = 0; |
| for (i = 0; i < 256; ++i) { |
| const int x = X[i]; |
| if (x != 0) { |
| const int xy = x + Y[i]; |
| sumX += x; |
| retval -= VP8LFastSLog2(x); |
| sumXY += xy; |
| retval -= VP8LFastSLog2(xy); |
| } else if (Y[i] != 0) { |
| sumXY += Y[i]; |
| retval -= VP8LFastSLog2(Y[i]); |
| } |
| } |
| retval += VP8LFastSLog2(sumX) + VP8LFastSLog2(sumXY); |
| return (float)retval; |
| } |
| |
| void VP8LBitEntropyInit(VP8LBitEntropy* const entropy) { |
| entropy->entropy = 0.; |
| entropy->sum = 0; |
| entropy->nonzeros = 0; |
| entropy->max_val = 0; |
| entropy->nonzero_code = VP8L_NON_TRIVIAL_SYM; |
| } |
| |
| void VP8LBitsEntropyUnrefined(const uint32_t* const array, int n, |
| VP8LBitEntropy* const entropy) { |
| int i; |
| |
| VP8LBitEntropyInit(entropy); |
| |
| for (i = 0; i < n; ++i) { |
| if (array[i] != 0) { |
| entropy->sum += array[i]; |
| entropy->nonzero_code = i; |
| ++entropy->nonzeros; |
| entropy->entropy -= VP8LFastSLog2(array[i]); |
| if (entropy->max_val < array[i]) { |
| entropy->max_val = array[i]; |
| } |
| } |
| } |
| entropy->entropy += VP8LFastSLog2(entropy->sum); |
| } |
| |
| static WEBP_INLINE void GetEntropyUnrefinedHelper( |
| uint32_t val, int i, uint32_t* const val_prev, int* const i_prev, |
| VP8LBitEntropy* const bit_entropy, VP8LStreaks* const stats) { |
| const int streak = i - *i_prev; |
| |
| // Gather info for the bit entropy. |
| if (*val_prev != 0) { |
| bit_entropy->sum += (*val_prev) * streak; |
| bit_entropy->nonzeros += streak; |
| bit_entropy->nonzero_code = *i_prev; |
| bit_entropy->entropy -= VP8LFastSLog2(*val_prev) * streak; |
| if (bit_entropy->max_val < *val_prev) { |
| bit_entropy->max_val = *val_prev; |
| } |
| } |
| |
| // Gather info for the Huffman cost. |
| stats->counts[*val_prev != 0] += (streak > 3); |
| stats->streaks[*val_prev != 0][(streak > 3)] += streak; |
| |
| *val_prev = val; |
| *i_prev = i; |
| } |
| |
| static void GetEntropyUnrefined_C(const uint32_t X[], int length, |
| VP8LBitEntropy* const bit_entropy, |
| VP8LStreaks* const stats) { |
| int i; |
| int i_prev = 0; |
| uint32_t x_prev = X[0]; |
| |
| memset(stats, 0, sizeof(*stats)); |
| VP8LBitEntropyInit(bit_entropy); |
| |
| for (i = 1; i < length; ++i) { |
| const uint32_t x = X[i]; |
| if (x != x_prev) { |
| GetEntropyUnrefinedHelper(x, i, &x_prev, &i_prev, bit_entropy, stats); |
| } |
| } |
| GetEntropyUnrefinedHelper(0, i, &x_prev, &i_prev, bit_entropy, stats); |
| |
| bit_entropy->entropy += VP8LFastSLog2(bit_entropy->sum); |
| } |
| |
| static void GetCombinedEntropyUnrefined_C(const uint32_t X[], |
| const uint32_t Y[], |
| int length, |
| VP8LBitEntropy* const bit_entropy, |
| VP8LStreaks* const stats) { |
| int i = 1; |
| int i_prev = 0; |
| uint32_t xy_prev = X[0] + Y[0]; |
| |
| memset(stats, 0, sizeof(*stats)); |
| VP8LBitEntropyInit(bit_entropy); |
| |
| for (i = 1; i < length; ++i) { |
| const uint32_t xy = X[i] + Y[i]; |
| if (xy != xy_prev) { |
| GetEntropyUnrefinedHelper(xy, i, &xy_prev, &i_prev, bit_entropy, stats); |
| } |
| } |
| GetEntropyUnrefinedHelper(0, i, &xy_prev, &i_prev, bit_entropy, stats); |
| |
| bit_entropy->entropy += VP8LFastSLog2(bit_entropy->sum); |
| } |
| |
| //------------------------------------------------------------------------------ |
| |
| void VP8LSubtractGreenFromBlueAndRed_C(uint32_t* argb_data, int num_pixels) { |
| int i; |
| for (i = 0; i < num_pixels; ++i) { |
| const int argb = argb_data[i]; |
| const int green = (argb >> 8) & 0xff; |
| const uint32_t new_r = (((argb >> 16) & 0xff) - green) & 0xff; |
| const uint32_t new_b = (((argb >> 0) & 0xff) - green) & 0xff; |
| argb_data[i] = (argb & 0xff00ff00u) | (new_r << 16) | new_b; |
| } |
| } |
| |
| static WEBP_INLINE int ColorTransformDelta(int8_t color_pred, int8_t color) { |
| return ((int)color_pred * color) >> 5; |
| } |
| |
| static WEBP_INLINE int8_t U32ToS8(uint32_t v) { |
| return (int8_t)(v & 0xff); |
| } |
| |
| void VP8LTransformColor_C(const VP8LMultipliers* const m, uint32_t* data, |
| int num_pixels) { |
| int i; |
| for (i = 0; i < num_pixels; ++i) { |
| const uint32_t argb = data[i]; |
| const int8_t green = U32ToS8(argb >> 8); |
| const int8_t red = U32ToS8(argb >> 16); |
| int new_red = red & 0xff; |
| int new_blue = argb & 0xff; |
| new_red -= ColorTransformDelta(m->green_to_red_, green); |
| new_red &= 0xff; |
| new_blue -= ColorTransformDelta(m->green_to_blue_, green); |
| new_blue -= ColorTransformDelta(m->red_to_blue_, red); |
| new_blue &= 0xff; |
| data[i] = (argb & 0xff00ff00u) | (new_red << 16) | (new_blue); |
| } |
| } |
| |
| static WEBP_INLINE uint8_t TransformColorRed(uint8_t green_to_red, |
| uint32_t argb) { |
| const int8_t green = U32ToS8(argb >> 8); |
| int new_red = argb >> 16; |
| new_red -= ColorTransformDelta(green_to_red, green); |
| return (new_red & 0xff); |
| } |
| |
| static WEBP_INLINE uint8_t TransformColorBlue(uint8_t green_to_blue, |
| uint8_t red_to_blue, |
| uint32_t argb) { |
| const int8_t green = U32ToS8(argb >> 8); |
| const int8_t red = U32ToS8(argb >> 16); |
| uint8_t new_blue = argb & 0xff; |
| new_blue -= ColorTransformDelta(green_to_blue, green); |
| new_blue -= ColorTransformDelta(red_to_blue, red); |
| return (new_blue & 0xff); |
| } |
| |
| void VP8LCollectColorRedTransforms_C(const uint32_t* argb, int stride, |
| int tile_width, int tile_height, |
| int green_to_red, int histo[]) { |
| while (tile_height-- > 0) { |
| int x; |
| for (x = 0; x < tile_width; ++x) { |
| ++histo[TransformColorRed((uint8_t)green_to_red, argb[x])]; |
| } |
| argb += stride; |
| } |
| } |
| |
| void VP8LCollectColorBlueTransforms_C(const uint32_t* argb, int stride, |
| int tile_width, int tile_height, |
| int green_to_blue, int red_to_blue, |
| int histo[]) { |
| while (tile_height-- > 0) { |
| int x; |
| for (x = 0; x < tile_width; ++x) { |
| ++histo[TransformColorBlue((uint8_t)green_to_blue, (uint8_t)red_to_blue, |
| argb[x])]; |
| } |
| argb += stride; |
| } |
| } |
| |
| //------------------------------------------------------------------------------ |
| |
| static int VectorMismatch_C(const uint32_t* const array1, |
| const uint32_t* const array2, int length) { |
| int match_len = 0; |
| |
| while (match_len < length && array1[match_len] == array2[match_len]) { |
| ++match_len; |
| } |
| return match_len; |
| } |
| |
| // Bundles multiple (1, 2, 4 or 8) pixels into a single pixel. |
| void VP8LBundleColorMap_C(const uint8_t* const row, int width, int xbits, |
| uint32_t* dst) { |
| int x; |
| if (xbits > 0) { |
| const int bit_depth = 1 << (3 - xbits); |
| const int mask = (1 << xbits) - 1; |
| uint32_t code = 0xff000000; |
| for (x = 0; x < width; ++x) { |
| const int xsub = x & mask; |
| if (xsub == 0) { |
| code = 0xff000000; |
| } |
| code |= row[x] << (8 + bit_depth * xsub); |
| dst[x >> xbits] = code; |
| } |
| } else { |
| for (x = 0; x < width; ++x) dst[x] = 0xff000000 | (row[x] << 8); |
| } |
| } |
| |
| //------------------------------------------------------------------------------ |
| |
| static double ExtraCost_C(const uint32_t* population, int length) { |
| int i; |
| double cost = 0.; |
| for (i = 2; i < length - 2; ++i) cost += (i >> 1) * population[i + 2]; |
| return cost; |
| } |
| |
| static double ExtraCostCombined_C(const uint32_t* X, const uint32_t* Y, |
| int length) { |
| int i; |
| double cost = 0.; |
| for (i = 2; i < length - 2; ++i) { |
| const int xy = X[i + 2] + Y[i + 2]; |
| cost += (i >> 1) * xy; |
| } |
| return cost; |
| } |
| |
| //------------------------------------------------------------------------------ |
| |
| static void AddVector_C(const uint32_t* a, const uint32_t* b, uint32_t* out, |
| int size) { |
| int i; |
| for (i = 0; i < size; ++i) out[i] = a[i] + b[i]; |
| } |
| |
| static void AddVectorEq_C(const uint32_t* a, uint32_t* out, int size) { |
| int i; |
| for (i = 0; i < size; ++i) out[i] += a[i]; |
| } |
| |
| #define ADD(X, ARG, LEN) do { \ |
| if (a->is_used_[X]) { \ |
| if (b->is_used_[X]) { \ |
| VP8LAddVector(a->ARG, b->ARG, out->ARG, (LEN)); \ |
| } else { \ |
| memcpy(&out->ARG[0], &a->ARG[0], (LEN) * sizeof(out->ARG[0])); \ |
| } \ |
| } else if (b->is_used_[X]) { \ |
| memcpy(&out->ARG[0], &b->ARG[0], (LEN) * sizeof(out->ARG[0])); \ |
| } else { \ |
| memset(&out->ARG[0], 0, (LEN) * sizeof(out->ARG[0])); \ |
| } \ |
| } while (0) |
| |
| #define ADD_EQ(X, ARG, LEN) do { \ |
| if (a->is_used_[X]) { \ |
| if (out->is_used_[X]) { \ |
| VP8LAddVectorEq(a->ARG, out->ARG, (LEN)); \ |
| } else { \ |
| memcpy(&out->ARG[0], &a->ARG[0], (LEN) * sizeof(out->ARG[0])); \ |
| } \ |
| } \ |
| } while (0) |
| |
| void VP8LHistogramAdd(const VP8LHistogram* const a, |
| const VP8LHistogram* const b, VP8LHistogram* const out) { |
| int i; |
| const int literal_size = VP8LHistogramNumCodes(a->palette_code_bits_); |
| assert(a->palette_code_bits_ == b->palette_code_bits_); |
| |
| if (b != out) { |
| ADD(0, literal_, literal_size); |
| ADD(1, red_, NUM_LITERAL_CODES); |
| ADD(2, blue_, NUM_LITERAL_CODES); |
| ADD(3, alpha_, NUM_LITERAL_CODES); |
| ADD(4, distance_, NUM_DISTANCE_CODES); |
| for (i = 0; i < 5; ++i) { |
| out->is_used_[i] = (a->is_used_[i] | b->is_used_[i]); |
| } |
| } else { |
| ADD_EQ(0, literal_, literal_size); |
| ADD_EQ(1, red_, NUM_LITERAL_CODES); |
| ADD_EQ(2, blue_, NUM_LITERAL_CODES); |
| ADD_EQ(3, alpha_, NUM_LITERAL_CODES); |
| ADD_EQ(4, distance_, NUM_DISTANCE_CODES); |
| for (i = 0; i < 5; ++i) out->is_used_[i] |= a->is_used_[i]; |
| } |
| } |
| #undef ADD |
| #undef ADD_EQ |
| |
| //------------------------------------------------------------------------------ |
| // Image transforms. |
| |
| static void PredictorSub0_C(const uint32_t* in, const uint32_t* upper, |
| int num_pixels, uint32_t* out) { |
| int i; |
| for (i = 0; i < num_pixels; ++i) out[i] = VP8LSubPixels(in[i], ARGB_BLACK); |
| (void)upper; |
| } |
| |
| static void PredictorSub1_C(const uint32_t* in, const uint32_t* upper, |
| int num_pixels, uint32_t* out) { |
| int i; |
| for (i = 0; i < num_pixels; ++i) out[i] = VP8LSubPixels(in[i], in[i - 1]); |
| (void)upper; |
| } |
| |
| // It subtracts the prediction from the input pixel and stores the residual |
| // in the output pixel. |
| #define GENERATE_PREDICTOR_SUB(PREDICTOR_I) \ |
| static void PredictorSub##PREDICTOR_I##_C(const uint32_t* in, \ |
| const uint32_t* upper, \ |
| int num_pixels, uint32_t* out) { \ |
| int x; \ |
| assert(upper != NULL); \ |
| for (x = 0; x < num_pixels; ++x) { \ |
| const uint32_t pred = \ |
| VP8LPredictor##PREDICTOR_I##_C(&in[x - 1], upper + x); \ |
| out[x] = VP8LSubPixels(in[x], pred); \ |
| } \ |
| } |
| |
| GENERATE_PREDICTOR_SUB(2) |
| GENERATE_PREDICTOR_SUB(3) |
| GENERATE_PREDICTOR_SUB(4) |
| GENERATE_PREDICTOR_SUB(5) |
| GENERATE_PREDICTOR_SUB(6) |
| GENERATE_PREDICTOR_SUB(7) |
| GENERATE_PREDICTOR_SUB(8) |
| GENERATE_PREDICTOR_SUB(9) |
| GENERATE_PREDICTOR_SUB(10) |
| GENERATE_PREDICTOR_SUB(11) |
| GENERATE_PREDICTOR_SUB(12) |
| GENERATE_PREDICTOR_SUB(13) |
| |
| //------------------------------------------------------------------------------ |
| |
| VP8LProcessEncBlueAndRedFunc VP8LSubtractGreenFromBlueAndRed; |
| |
| VP8LTransformColorFunc VP8LTransformColor; |
| |
| VP8LCollectColorBlueTransformsFunc VP8LCollectColorBlueTransforms; |
| VP8LCollectColorRedTransformsFunc VP8LCollectColorRedTransforms; |
| |
| VP8LFastLog2SlowFunc VP8LFastLog2Slow; |
| VP8LFastLog2SlowFunc VP8LFastSLog2Slow; |
| |
| VP8LCostFunc VP8LExtraCost; |
| VP8LCostCombinedFunc VP8LExtraCostCombined; |
| VP8LCombinedShannonEntropyFunc VP8LCombinedShannonEntropy; |
| |
| VP8LGetEntropyUnrefinedFunc VP8LGetEntropyUnrefined; |
| VP8LGetCombinedEntropyUnrefinedFunc VP8LGetCombinedEntropyUnrefined; |
| |
| VP8LAddVectorFunc VP8LAddVector; |
| VP8LAddVectorEqFunc VP8LAddVectorEq; |
| |
| VP8LVectorMismatchFunc VP8LVectorMismatch; |
| VP8LBundleColorMapFunc VP8LBundleColorMap; |
| |
| VP8LPredictorAddSubFunc VP8LPredictorsSub[16]; |
| VP8LPredictorAddSubFunc VP8LPredictorsSub_C[16]; |
| |
| extern void VP8LEncDspInitSSE2(void); |
| extern void VP8LEncDspInitSSE41(void); |
| extern void VP8LEncDspInitNEON(void); |
| extern void VP8LEncDspInitMIPS32(void); |
| extern void VP8LEncDspInitMIPSdspR2(void); |
| extern void VP8LEncDspInitMSA(void); |
| |
| WEBP_DSP_INIT_FUNC(VP8LEncDspInit) { |
| VP8LDspInit(); |
| |
| #if !WEBP_NEON_OMIT_C_CODE |
| VP8LSubtractGreenFromBlueAndRed = VP8LSubtractGreenFromBlueAndRed_C; |
| |
| VP8LTransformColor = VP8LTransformColor_C; |
| #endif |
| |
| VP8LCollectColorBlueTransforms = VP8LCollectColorBlueTransforms_C; |
| VP8LCollectColorRedTransforms = VP8LCollectColorRedTransforms_C; |
| |
| VP8LFastLog2Slow = FastLog2Slow_C; |
| VP8LFastSLog2Slow = FastSLog2Slow_C; |
| |
| VP8LExtraCost = ExtraCost_C; |
| VP8LExtraCostCombined = ExtraCostCombined_C; |
| VP8LCombinedShannonEntropy = CombinedShannonEntropy_C; |
| |
| VP8LGetEntropyUnrefined = GetEntropyUnrefined_C; |
| VP8LGetCombinedEntropyUnrefined = GetCombinedEntropyUnrefined_C; |
| |
| VP8LAddVector = AddVector_C; |
| VP8LAddVectorEq = AddVectorEq_C; |
| |
| VP8LVectorMismatch = VectorMismatch_C; |
| VP8LBundleColorMap = VP8LBundleColorMap_C; |
| |
| VP8LPredictorsSub[0] = PredictorSub0_C; |
| VP8LPredictorsSub[1] = PredictorSub1_C; |
| VP8LPredictorsSub[2] = PredictorSub2_C; |
| VP8LPredictorsSub[3] = PredictorSub3_C; |
| VP8LPredictorsSub[4] = PredictorSub4_C; |
| VP8LPredictorsSub[5] = PredictorSub5_C; |
| VP8LPredictorsSub[6] = PredictorSub6_C; |
| VP8LPredictorsSub[7] = PredictorSub7_C; |
| VP8LPredictorsSub[8] = PredictorSub8_C; |
| VP8LPredictorsSub[9] = PredictorSub9_C; |
| VP8LPredictorsSub[10] = PredictorSub10_C; |
| VP8LPredictorsSub[11] = PredictorSub11_C; |
| VP8LPredictorsSub[12] = PredictorSub12_C; |
| VP8LPredictorsSub[13] = PredictorSub13_C; |
| VP8LPredictorsSub[14] = PredictorSub0_C; // <- padding security sentinels |
| VP8LPredictorsSub[15] = PredictorSub0_C; |
| |
| VP8LPredictorsSub_C[0] = PredictorSub0_C; |
| VP8LPredictorsSub_C[1] = PredictorSub1_C; |
| VP8LPredictorsSub_C[2] = PredictorSub2_C; |
| VP8LPredictorsSub_C[3] = PredictorSub3_C; |
| VP8LPredictorsSub_C[4] = PredictorSub4_C; |
| VP8LPredictorsSub_C[5] = PredictorSub5_C; |
| VP8LPredictorsSub_C[6] = PredictorSub6_C; |
| VP8LPredictorsSub_C[7] = PredictorSub7_C; |
| VP8LPredictorsSub_C[8] = PredictorSub8_C; |
| VP8LPredictorsSub_C[9] = PredictorSub9_C; |
| VP8LPredictorsSub_C[10] = PredictorSub10_C; |
| VP8LPredictorsSub_C[11] = PredictorSub11_C; |
| VP8LPredictorsSub_C[12] = PredictorSub12_C; |
| VP8LPredictorsSub_C[13] = PredictorSub13_C; |
| VP8LPredictorsSub_C[14] = PredictorSub0_C; // <- padding security sentinels |
| VP8LPredictorsSub_C[15] = PredictorSub0_C; |
| |
| // If defined, use CPUInfo() to overwrite some pointers with faster versions. |
| if (VP8GetCPUInfo != NULL) { |
| #if defined(WEBP_HAVE_SSE2) |
| if (VP8GetCPUInfo(kSSE2)) { |
| VP8LEncDspInitSSE2(); |
| #if defined(WEBP_HAVE_SSE41) |
| if (VP8GetCPUInfo(kSSE4_1)) { |
| VP8LEncDspInitSSE41(); |
| } |
| #endif |
| } |
| #endif |
| #if defined(WEBP_USE_MIPS32) |
| if (VP8GetCPUInfo(kMIPS32)) { |
| VP8LEncDspInitMIPS32(); |
| } |
| #endif |
| #if defined(WEBP_USE_MIPS_DSP_R2) |
| if (VP8GetCPUInfo(kMIPSdspR2)) { |
| VP8LEncDspInitMIPSdspR2(); |
| } |
| #endif |
| #if defined(WEBP_USE_MSA) |
| if (VP8GetCPUInfo(kMSA)) { |
| VP8LEncDspInitMSA(); |
| } |
| #endif |
| } |
| |
| #if defined(WEBP_HAVE_NEON) |
| if (WEBP_NEON_OMIT_C_CODE || |
| (VP8GetCPUInfo != NULL && VP8GetCPUInfo(kNEON))) { |
| VP8LEncDspInitNEON(); |
| } |
| #endif |
| |
| assert(VP8LSubtractGreenFromBlueAndRed != NULL); |
| assert(VP8LTransformColor != NULL); |
| assert(VP8LCollectColorBlueTransforms != NULL); |
| assert(VP8LCollectColorRedTransforms != NULL); |
| assert(VP8LFastLog2Slow != NULL); |
| assert(VP8LFastSLog2Slow != NULL); |
| assert(VP8LExtraCost != NULL); |
| assert(VP8LExtraCostCombined != NULL); |
| assert(VP8LCombinedShannonEntropy != NULL); |
| assert(VP8LGetEntropyUnrefined != NULL); |
| assert(VP8LGetCombinedEntropyUnrefined != NULL); |
| assert(VP8LAddVector != NULL); |
| assert(VP8LAddVectorEq != NULL); |
| assert(VP8LVectorMismatch != NULL); |
| assert(VP8LBundleColorMap != NULL); |
| assert(VP8LPredictorsSub[0] != NULL); |
| assert(VP8LPredictorsSub[1] != NULL); |
| assert(VP8LPredictorsSub[2] != NULL); |
| assert(VP8LPredictorsSub[3] != NULL); |
| assert(VP8LPredictorsSub[4] != NULL); |
| assert(VP8LPredictorsSub[5] != NULL); |
| assert(VP8LPredictorsSub[6] != NULL); |
| assert(VP8LPredictorsSub[7] != NULL); |
| assert(VP8LPredictorsSub[8] != NULL); |
| assert(VP8LPredictorsSub[9] != NULL); |
| assert(VP8LPredictorsSub[10] != NULL); |
| assert(VP8LPredictorsSub[11] != NULL); |
| assert(VP8LPredictorsSub[12] != NULL); |
| assert(VP8LPredictorsSub[13] != NULL); |
| assert(VP8LPredictorsSub[14] != NULL); |
| assert(VP8LPredictorsSub[15] != NULL); |
| assert(VP8LPredictorsSub_C[0] != NULL); |
| assert(VP8LPredictorsSub_C[1] != NULL); |
| assert(VP8LPredictorsSub_C[2] != NULL); |
| assert(VP8LPredictorsSub_C[3] != NULL); |
| assert(VP8LPredictorsSub_C[4] != NULL); |
| assert(VP8LPredictorsSub_C[5] != NULL); |
| assert(VP8LPredictorsSub_C[6] != NULL); |
| assert(VP8LPredictorsSub_C[7] != NULL); |
| assert(VP8LPredictorsSub_C[8] != NULL); |
| assert(VP8LPredictorsSub_C[9] != NULL); |
| assert(VP8LPredictorsSub_C[10] != NULL); |
| assert(VP8LPredictorsSub_C[11] != NULL); |
| assert(VP8LPredictorsSub_C[12] != NULL); |
| assert(VP8LPredictorsSub_C[13] != NULL); |
| assert(VP8LPredictorsSub_C[14] != NULL); |
| assert(VP8LPredictorsSub_C[15] != NULL); |
| } |
| |
| //------------------------------------------------------------------------------ |
