diff options
Diffstat (limited to 'vcl/source/bitmap/floyd.hxx')
| -rw-r--r-- | vcl/source/bitmap/floyd.hxx | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/vcl/source/bitmap/floyd.hxx b/vcl/source/bitmap/floyd.hxx new file mode 100644 index 000000000..0617786a3 --- /dev/null +++ b/vcl/source/bitmap/floyd.hxx @@ -0,0 +1,197 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#pragma once + +#define CALC_ERRORS \ + nTemp = p1T[nX++] >> 12; \ + nBErr = MinMax( nTemp, 0, 255 ); \ + nBErr = nBErr - FloydIndexMap[ nBC = FloydMap[nBErr] ]; \ + nTemp = p1T[nX++] >> 12; \ + nGErr = MinMax( nTemp, 0, 255 ); \ + nGErr = nGErr - FloydIndexMap[ nGC = FloydMap[nGErr] ]; \ + nTemp = p1T[nX] >> 12; \ + nRErr = MinMax( nTemp, 0, 255 ); \ + nRErr = nRErr - FloydIndexMap[ nRC = FloydMap[nRErr] ]; + +#define CALC_TABLES3 \ + p2T[nX++] += FloydError3[nBErr]; \ + p2T[nX++] += FloydError3[nGErr]; \ + p2T[nX++] += FloydError3[nRErr]; + +#define CALC_TABLES5 \ + p2T[nX++] += FloydError5[nBErr]; \ + p2T[nX++] += FloydError5[nGErr]; \ + p2T[nX++] += FloydError5[nRErr]; + +#define CALC_TABLES7 \ + p1T[++nX] += FloydError7[nBErr]; \ + p2T[nX++] += FloydError1[nBErr]; \ + p1T[nX] += FloydError7[nGErr]; \ + p2T[nX++] += FloydError1[nGErr]; \ + p1T[nX] += FloydError7[nRErr]; \ + p2T[nX] += FloydError1[nRErr]; + +const extern sal_uLong nVCLRLut[ 6 ] = { 16, 17, 18, 19, 20, 21 }; +const extern sal_uLong nVCLGLut[ 6 ] = { 0, 6, 12, 18, 24, 30 }; +const extern sal_uLong nVCLBLut[ 6 ] = { 0, 36, 72, 108, 144, 180 }; + +const extern sal_uLong nVCLDitherLut[ 256 ] = +{ + 0, 49152, 12288, 61440, 3072, 52224, 15360, 64512, 768, 49920, 13056, + 62208, 3840, 52992, 16128, 65280, 32768, 16384, 45056, 28672, 35840, 19456, + 48128, 31744, 33536, 17152, 45824, 29440, 36608, 20224, 48896, 32512, 8192, + 57344, 4096, 53248, 11264, 60416, 7168, 56320, 8960, 58112, 4864, 54016, + 12032, 61184, 7936, 57088, 40960, 24576, 36864, 20480, 44032, 27648, 39936, + 23552, 41728, 25344, 37632, 21248, 44800, 28416, 40704, 24320, 2048, 51200, + 14336, 63488, 1024, 50176, 13312, 62464, 2816, 51968, 15104, 64256, 1792, + 50944, 14080, 63232, 34816, 18432, 47104, 30720, 33792, 17408, 46080, 29696, + 35584, 19200, 47872, 31488, 34560, 18176, 46848, 30464, 10240, 59392, 6144, + 55296, 9216, 58368, 5120, 54272, 11008, 60160, 6912, 56064, 9984, 59136, + 5888, 55040, 43008, 26624, 38912, 22528, 41984, 25600, 37888, 21504, 43776, + 27392, 39680, 23296, 42752, 26368, 38656, 22272, 512, 49664, 12800, 61952, + 3584, 52736, 15872, 65024, 256, 49408, 12544, 61696, 3328, 52480, 15616, + 64768, 33280, 16896, 45568, 29184, 36352, 19968, 48640, 32256, 33024, 16640, + 45312, 28928, 36096, 19712, 48384, 32000, 8704, 57856, 4608, 53760, 11776, + 60928, 7680, 56832, 8448, 57600, 4352, 53504, 11520, 60672, 7424, 56576, + 41472, 25088, 37376, 20992, 44544, 28160, 40448, 24064, 41216, 24832, 37120, + 20736, 44288, 27904, 40192, 23808, 2560, 51712, 14848, 64000, 1536, 50688, + 13824, 62976, 2304, 51456, 14592, 63744, 1280, 50432, 13568, 62720, 35328, + 18944, 47616, 31232, 34304, 17920, 46592, 30208, 35072, 18688, 47360, 30976, + 34048, 17664, 46336, 29952, 10752, 59904, 6656, 55808, 9728, 58880, 5632, + 54784, 10496, 59648, 6400, 55552, 9472, 58624, 5376, 54528, 43520, 27136, + 39424, 23040, 42496, 26112, 38400, 22016, 43264, 26880, 39168, 22784, 42240, + 25856, 38144, 21760 +}; + +const extern sal_uLong nVCLLut[ 256 ] = +{ + 0, 1286, 2572, 3858, 5144, 6430, 7716, 9002, + 10288, 11574, 12860, 14146, 15432, 16718, 18004, 19290, + 20576, 21862, 23148, 24434, 25720, 27006, 28292, 29578, + 30864, 32150, 33436, 34722, 36008, 37294, 38580, 39866, + 41152, 42438, 43724, 45010, 46296, 47582, 48868, 50154, + 51440, 52726, 54012, 55298, 56584, 57870, 59156, 60442, + 61728, 63014, 64300, 65586, 66872, 68158, 69444, 70730, + 72016, 73302, 74588, 75874, 77160, 78446, 79732, 81018, + 82304, 83590, 84876, 86162, 87448, 88734, 90020, 91306, + 92592, 93878, 95164, 96450, 97736, 99022,100308,101594, + 102880,104166,105452,106738,108024,109310,110596,111882, + 113168,114454,115740,117026,118312,119598,120884,122170, + 123456,124742,126028,127314,128600,129886,131172,132458, + 133744,135030,136316,137602,138888,140174,141460,142746, + 144032,145318,146604,147890,149176,150462,151748,153034, + 154320,155606,156892,158178,159464,160750,162036,163322, + 164608,165894,167180,168466,169752,171038,172324,173610, + 174896,176182,177468,178754,180040,181326,182612,183898, + 185184,186470,187756,189042,190328,191614,192900,194186, + 195472,196758,198044,199330,200616,201902,203188,204474, + 205760,207046,208332,209618,210904,212190,213476,214762, + 216048,217334,218620,219906,221192,222478,223764,225050, + 226336,227622,228908,230194,231480,232766,234052,235338, + 236624,237910,239196,240482,241768,243054,244340,245626, + 246912,248198,249484,250770,252056,253342,254628,255914, + 257200,258486,259772,261058,262344,263630,264916,266202, + 267488,268774,270060,271346,272632,273918,275204,276490, + 277776,279062,280348,281634,282920,284206,285492,286778, + 288064,289350,290636,291922,293208,294494,295780,297066, + 298352,299638,300924,302210,303496,304782,306068,307354, + 308640,309926,311212,312498,313784,315070,316356,317642, + 318928,320214,321500,322786,324072,325358,326644,327930 +}; + +const tools::Long FloydMap[256] = +{ + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, + 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, + 4, 4, 4, 4, 4, 4, 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 +}; + +const tools::Long FloydError1[61] = +{ + -7680, -7424, -7168, -6912, -6656, -6400, -6144, + -5888, -5632, -5376, -5120, -4864, -4608, -4352, + -4096, -3840, -3584, -3328, -3072, -2816, -2560, + -2304, -2048, -1792, -1536, -1280, -1024, -768, + -512, -256, 0, 256, 512, 768, 1024, 1280, 1536, + 1792, 2048, 2304, 2560, 2816, 3072, 3328, 3584, + 3840, 4096, 4352, 4608, 4864, 5120, 5376, 5632, + 5888, 6144, 6400, 6656, 6912, 7168, 7424, 7680 +}; + +const tools::Long FloydError3[61] = +{ + -23040, -22272, -21504, -20736, -19968, -19200, + -18432, -17664, -16896, -16128, -15360, -14592, + -13824, -13056, -12288, -11520, -10752, -9984, + -9216, -8448, -7680, -6912, -6144, -5376, -4608, + -3840, -3072, -2304, -1536, -768, 0, 768, 1536, + 2304, 3072, 3840, 4608, 5376, 6144, 6912, 7680, + 8448, 9216, 9984, 10752, 11520, 12288, 13056, + 13824, 14592, 15360, 16128, 16896, 17664, 18432, + 19200, 19968, 20736, 21504, 22272, 23040 +}; + +const tools::Long FloydError5[61] = +{ + -38400, -37120, -35840, -34560, -33280, -32000, + -30720, -29440, -28160, -26880, -25600, -24320, + -23040, -21760, -20480, -19200, -17920, -16640, + -15360, -14080, -12800, -11520, -10240, -8960, + -7680, -6400, -5120, -3840, -2560, -1280, 0, + 1280, 2560, 3840, 5120, 6400, 7680, 8960, 10240, + 11520, 12800, 14080, 15360, 16640, 17920, 19200, + 20480, 21760, 23040, 24320, 25600, 26880, 28160, + 29440, 30720, 32000, 33280, 34560, 35840, 37120, + 38400 +}; + +const tools::Long FloydError7[61] = +{ + -53760, -51968, -50176, -48384, -46592, -44800, + -43008, -41216, -39424, -37632, -35840, -34048, + -32256, -30464, -28672, -26880, -25088, -23296, + -21504, -19712, -17920, -16128, -14336, -12544, + -10752, -8960, -7168, -5376, -3584, -1792, 0, + 1792, 3584, 5376, 7168, 8960, 10752, 12544, 14336, + 16128, 17920, 19712, 21504, 23296, 25088, 26880, + 28672, 30464, 32256, 34048, 35840, 37632, 39424, + 41216, 43008, 44800, 46592, 48384, 50176, 51968, + 53760 +}; + +const tools::Long FloydIndexMap[6] = +{ + -30, 21, 72, 123, 174, 225 +}; + +/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |