128 lines
5.5 KiB
C
128 lines
5.5 KiB
C
/*
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* halftone.c
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*
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* Copyright (c) 1995 Erik Corry
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* RGB intensity tables.
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*/
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unsigned short RedIntensity[256]= {
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0, 77, 154, 231, 308, 385, 462, 539,
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616, 693, 770, 847, 924, 1001, 1078, 1155,
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1232, 1309, 1386, 1463, 1540, 1617, 1694, 1771,
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1848, 1925, 2002, 2079, 2156, 2233, 2310, 2387,
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2464, 2541, 2618, 2695, 2772, 2849, 2926, 3003,
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3080, 3157, 3234, 3311, 3388, 3465, 3542, 3619,
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3696, 3773, 3850, 3927, 4004, 4081, 4158, 4235,
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4312, 4389, 4466, 4543, 4620, 4697, 4774, 4851,
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4928, 5005, 5082, 5159, 5236, 5313, 5390, 5467,
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5544, 5621, 5698, 5775, 5852, 5929, 6006, 6083,
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6160, 6237, 6314, 6391, 6468, 6545, 6622, 6699,
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6776, 6853, 6930, 7007, 7084, 7161, 7238, 7315,
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7392, 7469, 7546, 7623, 7700, 7777, 7854, 7931,
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8008, 8085, 8162, 8239, 8316, 8393, 8470, 8547,
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8624, 8701, 8778, 8855, 8932, 9009, 9086, 9163,
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9240, 9317, 9394, 9471, 9548, 9625, 9702, 9779,
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9856, 9933,10010,10087,10164,10241,10318,10395,
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10472,10549,10626,10703,10780,10857,10934,11011,
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11088,11165,11242,11319,11396,11473,11550,11627,
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11704,11781,11858,11935,12012,12089,12166,12243,
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12320,12397,12474,12551,12628,12705,12782,12859,
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12936,13013,13090,13167,13244,13321,13398,13475,
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13552,13629,13706,13783,13860,13937,14014,14091,
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14168,14245,14322,14399,14476,14553,14630,14707,
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14784,14861,14938,15015,15092,15169,15246,15323,
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15400,15477,15554,15631,15708,15785,15862,15939,
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16016,16093,16170,16247,16324,16401,16478,16555,
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16632,16709,16786,16863,16940,17017,17094,17171,
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17248,17325,17402,17479,17556,17633,17710,17787,
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17864,17941,18018,18095,18172,18249,18326,18403,
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18480,18557,18634,18711,18788,18865,18942,19019,
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19096,19173,19250,19327,19404,19481,19558,19635
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};
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unsigned short GreenIntensity[256]= {
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0, 150, 300, 450, 600, 750, 900, 1050,
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1200, 1350, 1500, 1650, 1800, 1950, 2100, 2250,
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2400, 2550, 2700, 2850, 3000, 3150, 3300, 3450,
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3600, 3750, 3900, 4050, 4200, 4350, 4500, 4650,
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4800, 4950, 5100, 5250, 5400, 5550, 5700, 5850,
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6000, 6150, 6300, 6450, 6600, 6750, 6900, 7050,
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7200, 7350, 7500, 7650, 7800, 7950, 8100, 8250,
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8400, 8550, 8700, 8850, 9000, 9150, 9300, 9450,
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9600, 9750, 9900,10050,10200,10350,10500,10650,
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10800,10950,11100,11250,11400,11550,11700,11850,
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12000,12150,12300,12450,12600,12750,12900,13050,
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13200,13350,13500,13650,13800,13950,14100,14250,
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14400,14550,14700,14850,15000,15150,15300,15450,
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15600,15750,15900,16050,16200,16350,16500,16650,
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16800,16950,17100,17250,17400,17550,17700,17850,
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18000,18150,18300,18450,18600,18750,18900,19050,
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19200,19350,19500,19650,19800,19950,20100,20250,
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20400,20550,20700,20850,21000,21150,21300,21450,
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21600,21750,21900,22050,22200,22350,22500,22650,
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22800,22950,23100,23250,23400,23550,23700,23850,
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24000,24150,24300,24450,24600,24750,24900,25050,
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25200,25350,25500,25650,25800,25950,26100,26250,
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26400,26550,26700,26850,27000,27150,27300,27450,
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27600,27750,27900,28050,28200,28350,28500,28650,
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28800,28950,29100,29250,29400,29550,29700,29850,
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30000,30150,30300,30450,30600,30750,30900,31050,
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31200,31350,31500,31650,31800,31950,32100,32250,
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32400,32550,32700,32850,33000,33150,33300,33450,
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33600,33750,33900,34050,34200,34350,34500,34650,
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34800,34950,35100,35250,35400,35550,35700,35850,
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36000,36150,36300,36450,36600,36750,36900,37050,
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37200,37350,37500,37650,37800,37950,38100,38250
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};
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unsigned short BlueIntensity[256]= {
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0, 29, 58, 87, 116, 145, 174, 203,
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232, 261, 290, 319, 348, 377, 406, 435,
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464, 493, 522, 551, 580, 609, 638, 667,
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696, 725, 754, 783, 812, 841, 870, 899,
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928, 957, 986, 1015, 1044, 1073, 1102, 1131,
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1160, 1189, 1218, 1247, 1276, 1305, 1334, 1363,
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1392, 1421, 1450, 1479, 1508, 1537, 1566, 1595,
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1624, 1653, 1682, 1711, 1740, 1769, 1798, 1827,
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1856, 1885, 1914, 1943, 1972, 2001, 2030, 2059,
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2088, 2117, 2146, 2175, 2204, 2233, 2262, 2291,
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2320, 2349, 2378, 2407, 2436, 2465, 2494, 2523,
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2552, 2581, 2610, 2639, 2668, 2697, 2726, 2755,
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2784, 2813, 2842, 2871, 2900, 2929, 2958, 2987,
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3016, 3045, 3074, 3103, 3132, 3161, 3190, 3219,
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3248, 3277, 3306, 3335, 3364, 3393, 3422, 3451,
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3480, 3509, 3538, 3567, 3596, 3625, 3654, 3683,
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3712, 3741, 3770, 3799, 3828, 3857, 3886, 3915,
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3944, 3973, 4002, 4031, 4060, 4089, 4118, 4147,
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4176, 4205, 4234, 4263, 4292, 4321, 4350, 4379,
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4408, 4437, 4466, 4495, 4524, 4553, 4582, 4611,
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4640, 4669, 4698, 4727, 4756, 4785, 4814, 4843,
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4872, 4901, 4930, 4959, 4988, 5017, 5046, 5075,
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5104, 5133, 5162, 5191, 5220, 5249, 5278, 5307,
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5336, 5365, 5394, 5423, 5452, 5481, 5510, 5539,
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5568, 5597, 5626, 5655, 5684, 5713, 5742, 5771,
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5800, 5829, 5858, 5887, 5916, 5945, 5974, 6003,
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6032, 6061, 6090, 6119, 6148, 6177, 6206, 6235,
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6264, 6293, 6322, 6351, 6380, 6409, 6438, 6467,
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6496, 6525, 6554, 6583, 6612, 6641, 6670, 6699,
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6728, 6757, 6786, 6815, 6844, 6873, 6902, 6931,
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6960, 6989, 7018, 7047, 7076, 7105, 7134, 7163,
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7192, 7221, 7250, 7279, 7308, 7337, 7366, 7395
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};
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