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fsdither.h

fsdither.h 32 KB
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  1. /* The GIMP -- an image manipulation program
    2. 

  2.  * Copyright (C) 1995 Spencer Kimball and Peter Mattis
    3. 

  3.  *
    4. 

  4.  * This program is free software; you can redistribute it and/or modify
    5. 

  5.  * it under the terms of the GNU General Public License as published by
    6. 

  6.  * the Free Software Foundation; either version 2 of the License, or
    7. 

  7.  * (at your option) any later version.
    8. 

  8.  *
    9. 

  9.  * This program is distributed in the hope that it will be useful,
    10. 

  10.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
    11. 

  11.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    12. 

  12.  * GNU General Public License for more details.
    13. 

  13.  *
    14. 

  14.  * You should have received a copy of the GNU General Public License
    15. 

  15.  * along with this program; if not, write to the Free Software
    16. 

  16.  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
    17. 

  17.  */
    18. 

  18. #ifndef __FSDITHER_H__
    19. 

  19. #define __FSDITHER_H__
    20. 

  20. 

  21. /* The following 5 arrays are used in performing floyd-steinberg
    22. 

  22.  *  error diffusion dithering. The range array allows the quick
    23. 

  23.  *  bounds checking of pixel values. The 4 error arrays contain
    24. 

  24.  *  the error computations for the east, south-east, south and 
    25. 

  25.  *  south-west pixels surrounding the current pixel respectively.
    26. 

  26.  */
    27. 

  27. 

  28. 

  29. const short range_array[] = {
    30. 

  30.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    31. 

  31.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    32. 

  32.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    33. 

  33.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    34. 

  34.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    35. 

  35.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    36. 

  36.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    37. 

  37.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    38. 

  38.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    39. 

  39.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    40. 

  40.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    41. 

  41.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    42. 

  42.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    43. 

  43.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    44. 

  44.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    45. 

  45.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    46. 

  46.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    47. 

  47.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    48. 

  48.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    49. 

  49.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    50. 

  50.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    51. 

  51.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    52. 

  52.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    53. 

  53.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    54. 

  54.     0,    0,    0,    0,    0,    0,    0,    0,    0,    0,
    55. 

  55.     0,    0,    0,    0,    0,    0,    0,    1,    2,    3,
    56. 

  56.     4,    5,    6,    7,    8,    9,   10,   11,   12,   13,
    57. 

  57.    14,   15,   16,   17,   18,   19,   20,   21,   22,   23,
    58. 

  58.    24,   25,   26,   27,   28,   29,   30,   31,   32,   33,
    59. 

  59.    34,   35,   36,   37,   38,   39,   40,   41,   42,   43,
    60. 

  60.    44,   45,   46,   47,   48,   49,   50,   51,   52,   53,
    61. 

  61.    54,   55,   56,   57,   58,   59,   60,   61,   62,   63,
    62. 

  62.    64,   65,   66,   67,   68,   69,   70,   71,   72,   73,
    63. 

  63.    74,   75,   76,   77,   78,   79,   80,   81,   82,   83,
    64. 

  64.    84,   85,   86,   87,   88,   89,   90,   91,   92,   93,
    65. 

  65.    94,   95,   96,   97,   98,   99,  100,  101,  102,  103,
    66. 

  66.   104,  105,  106,  107,  108,  109,  110,  111,  112,  113,
    67. 

  67.   114,  115,  116,  117,  118,  119,  120,  121,  122,  123,
    68. 

  68.   124,  125,  126,  127,  128,  129,  130,  131,  132,  133,
    69. 

  69.   134,  135,  136,  137,  138,  139,  140,  141,  142,  143,
    70. 

  70.   144,  145,  146,  147,  148,  149,  150,  151,  152,  153,
    71. 

  71.   154,  155,  156,  157,  158,  159,  160,  161,  162,  163,
    72. 

  72.   164,  165,  166,  167,  168,  169,  170,  171,  172,  173,
    73. 

  73.   174,  175,  176,  177,  178,  179,  180,  181,  182,  183,
    74. 

  74.   184,  185,  186,  187,  188,  189,  190,  191,  192,  193,
    75. 

  75.   194,  195,  196,  197,  198,  199,  200,  201,  202,  203,
    76. 

  76.   204,  205,  206,  207,  208,  209,  210,  211,  212,  213,
    77. 

  77.   214,  215,  216,  217,  218,  219,  220,  221,  222,  223,
    78. 

  78.   224,  225,  226,  227,  228,  229,  230,  231,  232,  233,
    79. 

  79.   234,  235,  236,  237,  238,  239,  240,  241,  242,  243,
    80. 

  80.   244,  245,  246,  247,  248,  249,  250,  251,  252,  253,
    81. 

  81.   254,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    82. 

  82.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    83. 

  83.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    84. 

  84.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    85. 

  85.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    86. 

  86.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    87. 

  87.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    88. 

  88.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    89. 

  89.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    90. 

  90.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    91. 

  91.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    92. 

  92.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    93. 

  93.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    94. 

  94.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    95. 

  95.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    96. 

  96.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    97. 

  97.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    98. 

  98.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    99. 

  99.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    100. 

  100.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    101. 

  101.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    102. 

  102.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    103. 

  103.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    104. 

  104.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    105. 

  105.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    106. 

  106.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    107. 

  107.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    108. 

  108.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    109. 

  109.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    110. 

  110.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    111. 

  111.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    112. 

  112.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    113. 

  113.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    114. 

  114.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    115. 

  115.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    116. 

  116.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    117. 

  117.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    118. 

  118.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    119. 

  119.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    120. 

  120.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    121. 

  121.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    122. 

  122.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    123. 

  123.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    124. 

  124.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    125. 

  125.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    126. 

  126.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    127. 

  127.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    128. 

  128.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    129. 

  129.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    130. 

  130.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    131. 

  131.   255,  255,  255,  255,  255,  255,  255,  255,  255,  255,
    132. 

  132.   255,  255,  255,  255,  255,
    133. 

  133. };
    134. 

  134. 

  135. const short floyd_steinberg_error1[] = {
    136. 

  136.  -223, -223, -222, -222, -221, -221, -220, -220, -220, -219,
    137. 

  137.  -219, -218, -218, -217, -217, -217, -216, -216, -215, -215,
    138. 

  138.  -214, -214, -213, -213, -213, -212, -212, -211, -211, -210,
    139. 

  139.  -210, -210, -209, -209, -208, -208, -207, -207, -206, -206,
    140. 

  140.  -206, -205, -205, -204, -204, -203, -203, -203, -202, -202,
    141. 

  141.  -201, -201, -200, -200, -199, -199, -199, -198, -198, -197,
    142. 

  142.  -197, -196, -196, -196, -195, -195, -194, -194, -193, -193,
    143. 

  143.  -192, -192, -192, -191, -191, -190, -190, -189, -189, -189,
    144. 

  144.  -188, -188, -187, -187, -186, -186, -185, -185, -185, -184,
    145. 

  145.  -184, -183, -183, -182, -182, -182, -181, -181, -180, -180,
    146. 

  146.  -179, -179, -178, -178, -178, -177, -177, -176, -176, -175,
    147. 

  147.  -175, -175, -174, -174, -173, -173, -172, -172, -171, -171,
    148. 

  148.  -171, -170, -170, -169, -169, -168, -168, -168, -167, -167,
    149. 

  149.  -166, -166, -165, -165, -164, -164, -164, -163, -163, -162,
    150. 

  150.  -162, -161, -161, -161, -160, -160, -159, -159, -158, -158,
    151. 

  151.  -157, -157, -157, -156, -156, -155, -155, -154, -154, -154,
    152. 

  152.  -153, -153, -152, -152, -151, -151, -150, -150, -150, -149,
    153. 

  153.  -149, -148, -148, -147, -147, -147, -146, -146, -145, -145,
    154. 

  154.  -144, -144, -143, -143, -143, -142, -142, -141, -141, -140,
    155. 

  155.  -140, -140, -139, -139, -138, -138, -137, -137, -136, -136,
    156. 

  156.  -136, -135, -135, -134, -134, -133, -133, -133, -132, -132,
    157. 

  157.  -131, -131, -130, -130, -129, -129, -129, -128, -128, -127,
    158. 

  158.  -127, -126, -126, -126, -125, -125, -124, -124, -123, -123,
    159. 

  159.  -122, -122, -122, -121, -121, -120, -120, -119, -119, -119,
    160. 

  160.  -118, -118, -117, -117, -116, -116, -115, -115, -115, -114,
    161. 

  161.  -114, -113, -113, -112, -112, -112, -111, -111, -110, -110,
    162. 

  162.  -109, -109, -108, -108, -108, -107, -107, -106, -106, -105,
    163. 

  163.  -105, -105, -104, -104, -103, -103, -102, -102, -101, -101,
    164. 

  164.  -101, -100, -100,  -99,  -99,  -98,  -98,  -98,  -97,  -97,
    165. 

  165.   -96,  -96,  -95,  -95,  -94,  -94,  -94,  -93,  -93,  -92,
    166. 

  166.   -92,  -91,  -91,  -91,  -90,  -90,  -89,  -89,  -88,  -88,
    167. 

  167.   -87,  -87,  -87,  -86,  -86,  -85,  -85,  -84,  -84,  -84,
    168. 

  168.   -83,  -83,  -82,  -82,  -81,  -81,  -80,  -80,  -80,  -79,
    169. 

  169.   -79,  -78,  -78,  -77,  -77,  -77,  -76,  -76,  -75,  -75,
    170. 

  170.   -74,  -74,  -73,  -73,  -73,  -72,  -72,  -71,  -71,  -70,
    171. 

  171.   -70,  -70,  -69,  -69,  -68,  -68,  -67,  -67,  -66,  -66,
    172. 

  172.   -66,  -65,  -65,  -64,  -64,  -63,  -63,  -63,  -62,  -62,
    173. 

  173.   -61,  -61,  -60,  -60,  -59,  -59,  -59,  -58,  -58,  -57,
    174. 

  174.   -57,  -56,  -56,  -56,  -55,  -55,  -54,  -54,  -53,  -53,
    175. 

  175.   -52,  -52,  -52,  -51,  -51,  -50,  -50,  -49,  -49,  -49,
    176. 

  176.   -48,  -48,  -47,  -47,  -46,  -46,  -45,  -45,  -45,  -44,
    177. 

  177.   -44,  -43,  -43,  -42,  -42,  -42,  -41,  -41,  -40,  -40,
    178. 

  178.   -39,  -39,  -38,  -38,  -38,  -37,  -37,  -36,  -36,  -35,
    179. 

  179.   -35,  -35,  -34,  -34,  -33,  -33,  -32,  -32,  -31,  -31,
    180. 

  180.   -31,  -30,  -30,  -29,  -29,  -28,  -28,  -28,  -27,  -27,
    181. 

  181.   -26,  -26,  -25,  -25,  -24,  -24,  -24,  -23,  -23,  -22,
    182. 

  182.   -22,  -21,  -21,  -21,  -20,  -20,  -19,  -19,  -18,  -18,
    183. 

  183.   -17,  -17,  -17,  -16,  -16,  -15,  -15,  -14,  -14,  -14,
    184. 

  184.   -13,  -13,  -12,  -12,  -11,  -11,  -10,  -10,  -10,   -9,
    185. 

  185.    -9,   -8,   -8,   -7,   -7,   -7,   -6,   -6,   -5,   -5,
    186. 

  186.    -4,   -4,   -3,   -3,   -3,   -2,   -2,   -1,   -1,    0,
    187. 

  187.     0,    0,    0,    0,    1,    1,    2,    2,    3,    3,
    188. 

  188.     3,    4,    4,    5,    5,    6,    6,    7,    7,    7,
    189. 

  189.     8,    8,    9,    9,   10,   10,   10,   11,   11,   12,
    190. 

  190.    12,   13,   13,   14,   14,   14,   15,   15,   16,   16,
    191. 

  191.    17,   17,   17,   18,   18,   19,   19,   20,   20,   21,
    192. 

  192.    21,   21,   22,   22,   23,   23,   24,   24,   24,   25,
    193. 

  193.    25,   26,   26,   27,   27,   28,   28,   28,   29,   29,
    194. 

  194.    30,   30,   31,   31,   31,   32,   32,   33,   33,   34,
    195. 

  195.    34,   35,   35,   35,   36,   36,   37,   37,   38,   38,
    196. 

  196.    38,   39,   39,   40,   40,   41,   41,   42,   42,   42,
    197. 

  197.    43,   43,   44,   44,   45,   45,   45,   46,   46,   47,
    198. 

  198.    47,   48,   48,   49,   49,   49,   50,   50,   51,   51,
    199. 

  199.    52,   52,   52,   53,   53,   54,   54,   55,   55,   56,
    200. 

  200.    56,   56,   57,   57,   58,   58,   59,   59,   59,   60,
    201. 

  201.    60,   61,   61,   62,   62,   63,   63,   63,   64,   64,
    202. 

  202.    65,   65,   66,   66,   66,   67,   67,   68,   68,   69,
    203. 

  203.    69,   70,   70,   70,   71,   71,   72,   72,   73,   73,
    204. 

  204.    73,   74,   74,   75,   75,   76,   76,   77,   77,   77,
    205. 

  205.    78,   78,   79,   79,   80,   80,   80,   81,   81,   82,
    206. 

  206.    82,   83,   83,   84,   84,   84,   85,   85,   86,   86,
    207. 

  207.    87,   87,   87,   88,   88,   89,   89,   90,   90,   91,
    208. 

  208.    91,   91,   92,   92,   93,   93,   94,   94,   94,   95,
    209. 

  209.    95,   96,   96,   97,   97,   98,   98,   98,   99,   99,
    210. 

  210.   100,  100,  101,  101,  101,  102,  102,  103,  103,  104,
    211. 

  211.   104,  105,  105,  105,  106,  106,  107,  107,  108,  108,
    212. 

  212.   108,  109,  109,  110,  110,  111,  111,  112,  112,  112,
    213. 

  213.   113,  113,  114,  114,  115,  115,  115,  116,  116,  117,
    214. 

  214.   117,  118,  118,  119,  119,  119,  120,  120,  121,  121,
    215. 

  215.   122,  122,  122,  123,  123,  124,  124,  125,  125,  126,
    216. 

  216.   126,  126,  127,  127,  128,  128,  129,  129,  129,  130,
    217. 

  217.   130,  131,  131,  132,  132,  133,  133,  133,  134,  134,
    218. 

  218.   135,  135,  136,  136,  136,  137,  137,  138,  138,  139,
    219. 

  219.   139,  140,  140,  140,  141,  141,  142,  142,  143,  143,
    220. 

  220.   143,  144,  144,  145,  145,  146,  146,  147,  147,  147,
    221. 

  221.   148,  148,  149,  149,  150,  150,  150,  151,  151,  152,
    222. 

  222.   152,  153,  153,  154,  154,  154,  155,  155,  156,  156,
    223. 

  223.   157,  157,  157,  158,  158,  159,  159,  160,  160,  161,
    224. 

  224.   161,  161,  162,  162,  163,  163,  164,  164,  164,  165,
    225. 

  225.   165,  166,  166,  167,  167,  168,  168,  168,  169,  169,
    226. 

  226.   170,  170,  171,  171,  171,  172,  172,  173,  173,  174,
    227. 

  227.   174,  175,  175,  175,  176,  176,  177,  177,  178,  178,
    228. 

  228.   178,  179,  179,  180,  180,  181,  181,  182,  182,  182,
    229. 

  229.   183,  183,  184,  184,  185,  185,  185,  186,  186,  187,
    230. 

  230.   187,  188,  188,  189,  189,  189,  190,  190,  191,  191,
    231. 

  231.   192,  192,  192,  193,  193,  194,  194,  195,  195,  196,
    232. 

  232.   196,  196,  197,  197,  198,  198,  199,  199,  199,  200,
    233. 

  233.   200,  201,  201,  202,  202,  203,  203,  203,  204,  204,
    234. 

  234.   205,  205,  206,  206,  206,  207,  207,  208,  208,  209,
    235. 

  235.   209,  210,  210,  210,  211,  211,  212,  212,  213,  213,
    236. 

  236.   213,  214,  214,  215,  215,  216,  216,  217,  217,  217,
    237. 

  237.   218,  218,  219,  219,  220,  220,  220,  221,  221,  222,
    238. 

  238.   222,  223,  223,  224,  224,
    239. 

  239. };
    240. 

  240. 

  241. const short floyd_steinberg_error2[] = {
    242. 

  242.   -95,  -95,  -95,  -95,  -95,  -94,  -94,  -94,  -94,  -94,
    243. 

  243.   -93,  -93,  -93,  -93,  -93,  -93,  -92,  -92,  -92,  -92,
    244. 

  244.   -92,  -91,  -91,  -91,  -91,  -91,  -90,  -90,  -90,  -90,
    245. 

  245.   -90,  -90,  -89,  -89,  -89,  -89,  -89,  -88,  -88,  -88,
    246. 

  246.   -88,  -88,  -87,  -87,  -87,  -87,  -87,  -87,  -86,  -86,
    247. 

  247.   -86,  -86,  -86,  -85,  -85,  -85,  -85,  -85,  -84,  -84,
    248. 

  248.   -84,  -84,  -84,  -84,  -83,  -83,  -83,  -83,  -83,  -82,
    249. 

  249.   -82,  -82,  -82,  -82,  -81,  -81,  -81,  -81,  -81,  -81,
    250. 

  250.   -80,  -80,  -80,  -80,  -80,  -79,  -79,  -79,  -79,  -79,
    251. 

  251.   -78,  -78,  -78,  -78,  -78,  -78,  -77,  -77,  -77,  -77,
    252. 

  252.   -77,  -76,  -76,  -76,  -76,  -76,  -75,  -75,  -75,  -75,
    253. 

  253.   -75,  -75,  -74,  -74,  -74,  -74,  -74,  -73,  -73,  -73,
    254. 

  254.   -73,  -73,  -72,  -72,  -72,  -72,  -72,  -72,  -71,  -71,
    255. 

  255.   -71,  -71,  -71,  -70,  -70,  -70,  -70,  -70,  -69,  -69,
    256. 

  256.   -69,  -69,  -69,  -69,  -68,  -68,  -68,  -68,  -68,  -67,
    257. 

  257.   -67,  -67,  -67,  -67,  -66,  -66,  -66,  -66,  -66,  -66,
    258. 

  258.   -65,  -65,  -65,  -65,  -65,  -64,  -64,  -64,  -64,  -64,
    259. 

  259.   -63,  -63,  -63,  -63,  -63,  -63,  -62,  -62,  -62,  -62,
    260. 

  260.   -62,  -61,  -61,  -61,  -61,  -61,  -60,  -60,  -60,  -60,
    261. 

  261.   -60,  -60,  -59,  -59,  -59,  -59,  -59,  -58,  -58,  -58,
    262. 

  262.   -58,  -58,  -57,  -57,  -57,  -57,  -57,  -57,  -56,  -56,
    263. 

  263.   -56,  -56,  -56,  -55,  -55,  -55,  -55,  -55,  -54,  -54,
    264. 

  264.   -54,  -54,  -54,  -54,  -53,  -53,  -53,  -53,  -53,  -52,
    265. 

  265.   -52,  -52,  -52,  -52,  -51,  -51,  -51,  -51,  -51,  -51,
    266. 

  266.   -50,  -50,  -50,  -50,  -50,  -49,  -49,  -49,  -49,  -49,
    267. 

  267.   -48,  -48,  -48,  -48,  -48,  -48,  -47,  -47,  -47,  -47,
    268. 

  268.   -47,  -46,  -46,  -46,  -46,  -46,  -45,  -45,  -45,  -45,
    269. 

  269.   -45,  -45,  -44,  -44,  -44,  -44,  -44,  -43,  -43,  -43,
    270. 

  270.   -43,  -43,  -42,  -42,  -42,  -42,  -42,  -42,  -41,  -41,
    271. 

  271.   -41,  -41,  -41,  -40,  -40,  -40,  -40,  -40,  -39,  -39,
    272. 

  272.   -39,  -39,  -39,  -39,  -38,  -38,  -38,  -38,  -38,  -37,
    273. 

  273.   -37,  -37,  -37,  -37,  -36,  -36,  -36,  -36,  -36,  -36,
    274. 

  274.   -35,  -35,  -35,  -35,  -35,  -34,  -34,  -34,  -34,  -34,
    275. 

  275.   -33,  -33,  -33,  -33,  -33,  -33,  -32,  -32,  -32,  -32,
    276. 

  276.   -32,  -31,  -31,  -31,  -31,  -31,  -30,  -30,  -30,  -30,
    277. 

  277.   -30,  -30,  -29,  -29,  -29,  -29,  -29,  -28,  -28,  -28,
    278. 

  278.   -28,  -28,  -27,  -27,  -27,  -27,  -27,  -27,  -26,  -26,
    279. 

  279.   -26,  -26,  -26,  -25,  -25,  -25,  -25,  -25,  -24,  -24,
    280. 

  280.   -24,  -24,  -24,  -24,  -23,  -23,  -23,  -23,  -23,  -22,
    281. 

  281.   -22,  -22,  -22,  -22,  -21,  -21,  -21,  -21,  -21,  -21,
    282. 

  282.   -20,  -20,  -20,  -20,  -20,  -19,  -19,  -19,  -19,  -19,
    283. 

  283.   -18,  -18,  -18,  -18,  -18,  -18,  -17,  -17,  -17,  -17,
    284. 

  284.   -17,  -16,  -16,  -16,  -16,  -16,  -15,  -15,  -15,  -15,
    285. 

  285.   -15,  -15,  -14,  -14,  -14,  -14,  -14,  -13,  -13,  -13,
    286. 

  286.   -13,  -13,  -12,  -12,  -12,  -12,  -12,  -12,  -11,  -11,
    287. 

  287.   -11,  -11,  -11,  -10,  -10,  -10,  -10,  -10,   -9,   -9,
    288. 

  288.    -9,   -9,   -9,   -9,   -8,   -8,   -8,   -8,   -8,   -7,
    289. 

  289.    -7,   -7,   -7,   -7,   -6,   -6,   -6,   -6,   -6,   -6,
    290. 

  290.    -5,   -5,   -5,   -5,   -5,   -4,   -4,   -4,   -4,   -4,
    291. 

  291.    -3,   -3,   -3,   -3,   -3,   -3,   -2,   -2,   -2,   -2,
    292. 

  292.    -2,   -1,   -1,   -1,   -1,   -1,    0,    0,    0,    0,
    293. 

  293.     0,    0,    0,    0,    0,    0,    0,    1,    1,    1,
    294. 

  294.     1,    1,    2,    2,    2,    2,    2,    3,    3,    3,
    295. 

  295.     3,    3,    3,    4,    4,    4,    4,    4,    5,    5,
    296. 

  296.     5,    5,    5,    6,    6,    6,    6,    6,    6,    7,
    297. 

  297.     7,    7,    7,    7,    8,    8,    8,    8,    8,    9,
    298. 

  298.     9,    9,    9,    9,    9,   10,   10,   10,   10,   10,
    299. 

  299.    11,   11,   11,   11,   11,   12,   12,   12,   12,   12,
    300. 

  300.    12,   13,   13,   13,   13,   13,   14,   14,   14,   14,
    301. 

  301.    14,   15,   15,   15,   15,   15,   15,   16,   16,   16,
    302. 

  302.    16,   16,   17,   17,   17,   17,   17,   18,   18,   18,
    303. 

  303.    18,   18,   18,   19,   19,   19,   19,   19,   20,   20,
    304. 

  304.    20,   20,   20,   21,   21,   21,   21,   21,   21,   22,
    305. 

  305.    22,   22,   22,   22,   23,   23,   23,   23,   23,   24,
    306. 

  306.    24,   24,   24,   24,   24,   25,   25,   25,   25,   25,
    307. 

  307.    26,   26,   26,   26,   26,   27,   27,   27,   27,   27,
    308. 

  308.    27,   28,   28,   28,   28,   28,   29,   29,   29,   29,
    309. 

  309.    29,   30,   30,   30,   30,   30,   30,   31,   31,   31,
    310. 

  310.    31,   31,   32,   32,   32,   32,   32,   33,   33,   33,
    311. 

  311.    33,   33,   33,   34,   34,   34,   34,   34,   35,   35,
    312. 

  312.    35,   35,   35,   36,   36,   36,   36,   36,   36,   37,
    313. 

  313.    37,   37,   37,   37,   38,   38,   38,   38,   38,   39,
    314. 

  314.    39,   39,   39,   39,   39,   40,   40,   40,   40,   40,
    315. 

  315.    41,   41,   41,   41,   41,   42,   42,   42,   42,   42,
    316. 

  316.    42,   43,   43,   43,   43,   43,   44,   44,   44,   44,
    317. 

  317.    44,   45,   45,   45,   45,   45,   45,   46,   46,   46,
    318. 

  318.    46,   46,   47,   47,   47,   47,   47,   48,   48,   48,
    319. 

  319.    48,   48,   48,   49,   49,   49,   49,   49,   50,   50,
    320. 

  320.    50,   50,   50,   51,   51,   51,   51,   51,   51,   52,
    321. 

  321.    52,   52,   52,   52,   53,   53,   53,   53,   53,   54,
    322. 

  322.    54,   54,   54,   54,   54,   55,   55,   55,   55,   55,
    323. 

  323.    56,   56,   56,   56,   56,   57,   57,   57,   57,   57,
    324. 

  324.    57,   58,   58,   58,   58,   58,   59,   59,   59,   59,
    325. 

  325.    59,   60,   60,   60,   60,   60,   60,   61,   61,   61,
    326. 

  326.    61,   61,   62,   62,   62,   62,   62,   63,   63,   63,
    327. 

  327.    63,   63,   63,   64,   64,   64,   64,   64,   65,   65,
    328. 

  328.    65,   65,   65,   66,   66,   66,   66,   66,   66,   67,
    329. 

  329.    67,   67,   67,   67,   68,   68,   68,   68,   68,   69,
    330. 

  330.    69,   69,   69,   69,   69,   70,   70,   70,   70,   70,
    331. 

  331.    71,   71,   71,   71,   71,   72,   72,   72,   72,   72,
    332. 

  332.    72,   73,   73,   73,   73,   73,   74,   74,   74,   74,
    333. 

  333.    74,   75,   75,   75,   75,   75,   75,   76,   76,   76,
    334. 

  334.    76,   76,   77,   77,   77,   77,   77,   78,   78,   78,
    335. 

  335.    78,   78,   78,   79,   79,   79,   79,   79,   80,   80,
    336. 

  336.    80,   80,   80,   81,   81,   81,   81,   81,   81,   82,
    337. 

  337.    82,   82,   82,   82,   83,   83,   83,   83,   83,   84,
    338. 

  338.    84,   84,   84,   84,   84,   85,   85,   85,   85,   85,
    339. 

  339.    86,   86,   86,   86,   86,   87,   87,   87,   87,   87,
    340. 

  340.    87,   88,   88,   88,   88,   88,   89,   89,   89,   89,
    341. 

  341.    89,   90,   90,   90,   90,   90,   90,   91,   91,   91,
    342. 

  342.    91,   91,   92,   92,   92,   92,   92,   93,   93,   93,
    343. 

  343.    93,   93,   93,   94,   94,   94,   94,   94,   95,   95,
    344. 

  344.    95,   95,   95,   96,   96,
    345. 

  345. };
    346. 

  346. 

  347. const short floyd_steinberg_error3[] = {
    348. 

  348.  -159, -159, -159, -158, -158, -158, -157, -157, -157, -156,
    349. 

  349.  -156, -156, -155, -155, -155, -155, -154, -154, -154, -153,
    350. 

  350.  -153, -153, -152, -152, -152, -151, -151, -151, -150, -150,
    351. 

  351.  -150, -150, -149, -149, -149, -148, -148, -148, -147, -147,
    352. 

  352.  -147, -146, -146, -146, -145, -145, -145, -145, -144, -144,
    353. 

  353.  -144, -143, -143, -143, -142, -142, -142, -141, -141, -141,
    354. 

  354.  -140, -140, -140, -140, -139, -139, -139, -138, -138, -138,
    355. 

  355.  -137, -137, -137, -136, -136, -136, -135, -135, -135, -135,
    356. 

  356.  -134, -134, -134, -133, -133, -133, -132, -132, -132, -131,
    357. 

  357.  -131, -131, -130, -130, -130, -130, -129, -129, -129, -128,
    358. 

  358.  -128, -128, -127, -127, -127, -126, -126, -126, -125, -125,
    359. 

  359.  -125, -125, -124, -124, -124, -123, -123, -123, -122, -122,
    360. 

  360.  -122, -121, -121, -121, -120, -120, -120, -120, -119, -119,
    361. 

  361.  -119, -118, -118, -118, -117, -117, -117, -116, -116, -116,
    362. 

  362.  -115, -115, -115, -115, -114, -114, -114, -113, -113, -113,
    363. 

  363.  -112, -112, -112, -111, -111, -111, -110, -110, -110, -110,
    364. 

  364.  -109, -109, -109, -108, -108, -108, -107, -107, -107, -106,
    365. 

  365.  -106, -106, -105, -105, -105, -105, -104, -104, -104, -103,
    366. 

  366.  -103, -103, -102, -102, -102, -101, -101, -101, -100, -100,
    367. 

  367.  -100, -100,  -99,  -99,  -99,  -98,  -98,  -98,  -97,  -97,
    368. 

  368.   -97,  -96,  -96,  -96,  -95,  -95,  -95,  -95,  -94,  -94,
    369. 

  369.   -94,  -93,  -93,  -93,  -92,  -92,  -92,  -91,  -91,  -91,
    370. 

  370.   -90,  -90,  -90,  -90,  -89,  -89,  -89,  -88,  -88,  -88,
    371. 

  371.   -87,  -87,  -87,  -86,  -86,  -86,  -85,  -85,  -85,  -85,
    372. 

  372.   -84,  -84,  -84,  -83,  -83,  -83,  -82,  -82,  -82,  -81,
    373. 

  373.   -81,  -81,  -80,  -80,  -80,  -80,  -79,  -79,  -79,  -78,
    374. 

  374.   -78,  -78,  -77,  -77,  -77,  -76,  -76,  -76,  -75,  -75,
    375. 

  375.   -75,  -75,  -74,  -74,  -74,  -73,  -73,  -73,  -72,  -72,
    376. 

  376.   -72,  -71,  -71,  -71,  -70,  -70,  -70,  -70,  -69,  -69,
    377. 

  377.   -69,  -68,  -68,  -68,  -67,  -67,  -67,  -66,  -66,  -66,
    378. 

  378.   -65,  -65,  -65,  -65,  -64,  -64,  -64,  -63,  -63,  -63,
    379. 

  379.   -62,  -62,  -62,  -61,  -61,  -61,  -60,  -60,  -60,  -60,
    380. 

  380.   -59,  -59,  -59,  -58,  -58,  -58,  -57,  -57,  -57,  -56,
    381. 

  381.   -56,  -56,  -55,  -55,  -55,  -55,  -54,  -54,  -54,  -53,
    382. 

  382.   -53,  -53,  -52,  -52,  -52,  -51,  -51,  -51,  -50,  -50,
    383. 

  383.   -50,  -50,  -49,  -49,  -49,  -48,  -48,  -48,  -47,  -47,
    384. 

  384.   -47,  -46,  -46,  -46,  -45,  -45,  -45,  -45,  -44,  -44,
    385. 

  385.   -44,  -43,  -43,  -43,  -42,  -42,  -42,  -41,  -41,  -41,
    386. 

  386.   -40,  -40,  -40,  -40,  -39,  -39,  -39,  -38,  -38,  -38,
    387. 

  387.   -37,  -37,  -37,  -36,  -36,  -36,  -35,  -35,  -35,  -35,
    388. 

  388.   -34,  -34,  -34,  -33,  -33,  -33,  -32,  -32,  -32,  -31,
    389. 

  389.   -31,  -31,  -30,  -30,  -30,  -30,  -29,  -29,  -29,  -28,
    390. 

  390.   -28,  -28,  -27,  -27,  -27,  -26,  -26,  -26,  -25,  -25,
    391. 

  391.   -25,  -25,  -24,  -24,  -24,  -23,  -23,  -23,  -22,  -22,
    392. 

  392.   -22,  -21,  -21,  -21,  -20,  -20,  -20,  -20,  -19,  -19,
    393. 

  393.   -19,  -18,  -18,  -18,  -17,  -17,  -17,  -16,  -16,  -16,
    394. 

  394.   -15,  -15,  -15,  -15,  -14,  -14,  -14,  -13,  -13,  -13,
    395. 

  395.   -12,  -12,  -12,  -11,  -11,  -11,  -10,  -10,  -10,  -10,
    396. 

  396.    -9,   -9,   -9,   -8,   -8,   -8,   -7,   -7,   -7,   -6,
    397. 

  397.    -6,   -6,   -5,   -5,   -5,   -5,   -4,   -4,   -4,   -3,
    398. 

  398.    -3,   -3,   -2,   -2,   -2,   -1,   -1,   -1,    0,    0,
    399. 

  399.     0,    0,    0,    0,    0,    1,    1,    1,    2,    2,
    400. 

  400.     2,    3,    3,    3,    4,    4,    4,    5,    5,    5,
    401. 

  401.     5,    6,    6,    6,    7,    7,    7,    8,    8,    8,
    402. 

  402.     9,    9,    9,   10,   10,   10,   10,   11,   11,   11,
    403. 

  403.    12,   12,   12,   13,   13,   13,   14,   14,   14,   15,
    404. 

  404.    15,   15,   15,   16,   16,   16,   17,   17,   17,   18,
    405. 

  405.    18,   18,   19,   19,   19,   20,   20,   20,   20,   21,
    406. 

  406.    21,   21,   22,   22,   22,   23,   23,   23,   24,   24,
    407. 

  407.    24,   25,   25,   25,   25,   26,   26,   26,   27,   27,
    408. 

  408.    27,   28,   28,   28,   29,   29,   29,   30,   30,   30,
    409. 

  409.    30,   31,   31,   31,   32,   32,   32,   33,   33,   33,
    410. 

  410.    34,   34,   34,   35,   35,   35,   35,   36,   36,   36,
    411. 

  411.    37,   37,   37,   38,   38,   38,   39,   39,   39,   40,
    412. 

  412.    40,   40,   40,   41,   41,   41,   42,   42,   42,   43,
    413. 

  413.    43,   43,   44,   44,   44,   45,   45,   45,   45,   46,
    414. 

  414.    46,   46,   47,   47,   47,   48,   48,   48,   49,   49,
    415. 

  415.    49,   50,   50,   50,   50,   51,   51,   51,   52,   52,
    416. 

  416.    52,   53,   53,   53,   54,   54,   54,   55,   55,   55,
    417. 

  417.    55,   56,   56,   56,   57,   57,   57,   58,   58,   58,
    418. 

  418.    59,   59,   59,   60,   60,   60,   60,   61,   61,   61,
    419. 

  419.    62,   62,   62,   63,   63,   63,   64,   64,   64,   65,
    420. 

  420.    65,   65,   65,   66,   66,   66,   67,   67,   67,   68,
    421. 

  421.    68,   68,   69,   69,   69,   70,   70,   70,   70,   71,
    422. 

  422.    71,   71,   72,   72,   72,   73,   73,   73,   74,   74,
    423. 

  423.    74,   75,   75,   75,   75,   76,   76,   76,   77,   77,
    424. 

  424.    77,   78,   78,   78,   79,   79,   79,   80,   80,   80,
    425. 

  425.    80,   81,   81,   81,   82,   82,   82,   83,   83,   83,
    426. 

  426.    84,   84,   84,   85,   85,   85,   85,   86,   86,   86,
    427. 

  427.    87,   87,   87,   88,   88,   88,   89,   89,   89,   90,
    428. 

  428.    90,   90,   90,   91,   91,   91,   92,   92,   92,   93,
    429. 

  429.    93,   93,   94,   94,   94,   95,   95,   95,   95,   96,
    430. 

  430.    96,   96,   97,   97,   97,   98,   98,   98,   99,   99,
    431. 

  431.    99,  100,  100,  100,  100,  101,  101,  101,  102,  102,
    432. 

  432.   102,  103,  103,  103,  104,  104,  104,  105,  105,  105,
    433. 

  433.   105,  106,  106,  106,  107,  107,  107,  108,  108,  108,
    434. 

  434.   109,  109,  109,  110,  110,  110,  110,  111,  111,  111,
    435. 

  435.   112,  112,  112,  113,  113,  113,  114,  114,  114,  115,
    436. 

  436.   115,  115,  115,  116,  116,  116,  117,  117,  117,  118,
    437. 

  437.   118,  118,  119,  119,  119,  120,  120,  120,  120,  121,
    438. 

  438.   121,  121,  122,  122,  122,  123,  123,  123,  124,  124,
    439. 

  439.   124,  125,  125,  125,  125,  126,  126,  126,  127,  127,
    440. 

  440.   127,  128,  128,  128,  129,  129,  129,  130,  130,  130,
    441. 

  441.   130,  131,  131,  131,  132,  132,  132,  133,  133,  133,
    442. 

  442.   134,  134,  134,  135,  135,  135,  135,  136,  136,  136,
    443. 

  443.   137,  137,  137,  138,  138,  138,  139,  139,  139,  140,
    444. 

  444.   140,  140,  140,  141,  141,  141,  142,  142,  142,  143,
    445. 

  445.   143,  143,  144,  144,  144,  145,  145,  145,  145,  146,
    446. 

  446.   146,  146,  147,  147,  147,  148,  148,  148,  149,  149,
    447. 

  447.   149,  150,  150,  150,  150,  151,  151,  151,  152,  152,
    448. 

  448.   152,  153,  153,  153,  154,  154,  154,  155,  155,  155,
    449. 

  449.   155,  156,  156,  156,  157,  157,  157,  158,  158,  158,
    450. 

  450.   159,  159,  159,  160,  160,
    451. 

  451. };
    452. 

  452. 

  453. const short floyd_steinberg_error4[] = {
    454. 

  454.   -34,  -33,  -33,  -33,  -33,  -33,  -34,  -33,  -32,  -33,
    455. 

  455.   -33,  -33,  -33,  -33,  -32,  -31,  -33,  -32,  -32,  -32,
    456. 

  456.   -32,  -32,  -33,  -32,  -31,  -32,  -32,  -32,  -32,  -32,
    457. 

  457.   -31,  -30,  -32,  -31,  -31,  -31,  -31,  -31,  -32,  -31,
    458. 

  458.   -30,  -31,  -31,  -31,  -31,  -31,  -30,  -29,  -31,  -30,
    459. 

  459.   -30,  -30,  -30,  -30,  -31,  -30,  -29,  -30,  -30,  -30,
    460. 

  460.   -30,  -30,  -29,  -28,  -30,  -29,  -29,  -29,  -29,  -29,
    461. 

  461.   -30,  -29,  -28,  -29,  -29,  -29,  -29,  -29,  -28,  -27,
    462. 

  462.   -29,  -28,  -28,  -28,  -28,  -28,  -29,  -28,  -27,  -28,
    463. 

  463.   -28,  -28,  -28,  -28,  -27,  -26,  -28,  -27,  -27,  -27,
    464. 

  464.   -27,  -27,  -28,  -27,  -26,  -27,  -27,  -27,  -27,  -27,
    465. 

  465.   -26,  -25,  -27,  -26,  -26,  -26,  -26,  -26,  -27,  -26,
    466. 

  466.   -25,  -26,  -26,  -26,  -26,  -26,  -25,  -24,  -26,  -25,
    467. 

  467.   -25,  -25,  -25,  -25,  -26,  -25,  -24,  -25,  -25,  -25,
    468. 

  468.   -25,  -25,  -24,  -23,  -25,  -24,  -24,  -24,  -24,  -24,
    469. 

  469.   -25,  -24,  -23,  -24,  -24,  -24,  -24,  -24,  -23,  -22,
    470. 

  470.   -24,  -23,  -23,  -23,  -23,  -23,  -24,  -23,  -22,  -23,
    471. 

  471.   -23,  -23,  -23,  -23,  -22,  -21,  -23,  -22,  -22,  -22,
    472. 

  472.   -22,  -22,  -23,  -22,  -21,  -22,  -22,  -22,  -22,  -22,
    473. 

  473.   -21,  -20,  -22,  -21,  -21,  -21,  -21,  -21,  -22,  -21,
    474. 

  474.   -20,  -21,  -21,  -21,  -21,  -21,  -20,  -19,  -21,  -20,
    475. 

  475.   -20,  -20,  -20,  -20,  -21,  -20,  -19,  -20,  -20,  -20,
    476. 

  476.   -20,  -20,  -19,  -18,  -20,  -19,  -19,  -19,  -19,  -19,
    477. 

  477.   -20,  -19,  -18,  -19,  -19,  -19,  -19,  -19,  -18,  -17,
    478. 

  478.   -19,  -18,  -18,  -18,  -18,  -18,  -19,  -18,  -17,  -18,
    479. 

  479.   -18,  -18,  -18,  -18,  -17,  -16,  -18,  -17,  -17,  -17,
    480. 

  480.   -17,  -17,  -18,  -17,  -16,  -17,  -17,  -17,  -17,  -17,
    481. 

  481.   -16,  -15,  -17,  -16,  -16,  -16,  -16,  -16,  -17,  -16,
    482. 

  482.   -15,  -16,  -16,  -16,  -16,  -16,  -15,  -14,  -16,  -15,
    483. 

  483.   -15,  -15,  -15,  -15,  -16,  -15,  -14,  -15,  -15,  -15,
    484. 

  484.   -15,  -15,  -14,  -13,  -15,  -14,  -14,  -14,  -14,  -14,
    485. 

  485.   -15,  -14,  -13,  -14,  -14,  -14,  -14,  -14,  -13,  -12,
    486. 

  486.   -14,  -13,  -13,  -13,  -13,  -13,  -14,  -13,  -12,  -13,
    487. 

  487.   -13,  -13,  -13,  -13,  -12,  -11,  -13,  -12,  -12,  -12,
    488. 

  488.   -12,  -12,  -13,  -12,  -11,  -12,  -12,  -12,  -12,  -12,
    489. 

  489.   -11,  -10,  -12,  -11,  -11,  -11,  -11,  -11,  -12,  -11,
    490. 

  490.   -10,  -11,  -11,  -11,  -11,  -11,  -10,   -9,  -11,  -10,
    491. 

  491.   -10,  -10,  -10,  -10,  -11,  -10,   -9,  -10,  -10,  -10,
    492. 

  492.   -10,  -10,   -9,   -8,  -10,   -9,   -9,   -9,   -9,   -9,
    493. 

  493.   -10,   -9,   -8,   -9,   -9,   -9,   -9,   -9,   -8,   -7,
    494. 

  494.    -9,   -8,   -8,   -8,   -8,   -8,   -9,   -8,   -7,   -8,
    495. 

  495.    -8,   -8,   -8,   -8,   -7,   -6,   -8,   -7,   -7,   -7,
    496. 

  496.    -7,   -7,   -8,   -7,   -6,   -7,   -7,   -7,   -7,   -7,
    497. 

  497.    -6,   -5,   -7,   -6,   -6,   -6,   -6,   -6,   -7,   -6,
    498. 

  498.    -5,   -6,   -6,   -6,   -6,   -6,   -5,   -4,   -6,   -5,
    499. 

  499.    -5,   -5,   -5,   -5,   -6,   -5,   -4,   -5,   -5,   -5,
    500. 

  500.    -5,   -5,   -4,   -3,   -5,   -4,   -4,   -4,   -4,   -4,
    501. 

  501.    -5,   -4,   -3,   -4,   -4,   -4,   -4,   -4,   -3,   -2,
    502. 

  502.    -4,   -3,   -3,   -3,   -3,   -3,   -4,   -3,   -2,   -3,
    503. 

  503.    -3,   -3,   -3,   -3,   -2,   -1,   -3,   -2,   -2,   -2,
    504. 

  504.    -2,   -2,   -3,   -2,   -1,   -2,   -2,   -2,   -2,   -2,
    505. 

  505.    -1,    0,    1,    2,    2,    2,    2,    2,    1,    2,
    506. 

  506.     3,    2,    2,    2,    2,    2,    3,    1,    2,    3,
    507. 

  507.     3,    3,    3,    3,    2,    3,    4,    3,    3,    3,
    508. 

  508.     3,    3,    4,    2,    3,    4,    4,    4,    4,    4,
    509. 

  509.     3,    4,    5,    4,    4,    4,    4,    4,    5,    3,
    510. 

  510.     4,    5,    5,    5,    5,    5,    4,    5,    6,    5,
    511. 

  511.     5,    5,    5,    5,    6,    4,    5,    6,    6,    6,
    512. 

  512.     6,    6,    5,    6,    7,    6,    6,    6,    6,    6,
    513. 

  513.     7,    5,    6,    7,    7,    7,    7,    7,    6,    7,
    514. 

  514.     8,    7,    7,    7,    7,    7,    8,    6,    7,    8,
    515. 

  515.     8,    8,    8,    8,    7,    8,    9,    8,    8,    8,
    516. 

  516.     8,    8,    9,    7,    8,    9,    9,    9,    9,    9,
    517. 

  517.     8,    9,   10,    9,    9,    9,    9,    9,   10,    8,
    518. 

  518.     9,   10,   10,   10,   10,   10,    9,   10,   11,   10,
    519. 

  519.    10,   10,   10,   10,   11,    9,   10,   11,   11,   11,
    520. 

  520.    11,   11,   10,   11,   12,   11,   11,   11,   11,   11,
    521. 

  521.    12,   10,   11,   12,   12,   12,   12,   12,   11,   12,
    522. 

  522.    13,   12,   12,   12,   12,   12,   13,   11,   12,   13,
    523. 

  523.    13,   13,   13,   13,   12,   13,   14,   13,   13,   13,
    524. 

  524.    13,   13,   14,   12,   13,   14,   14,   14,   14,   14,
    525. 

  525.    13,   14,   15,   14,   14,   14,   14,   14,   15,   13,
    526. 

  526.    14,   15,   15,   15,   15,   15,   14,   15,   16,   15,
    527. 

  527.    15,   15,   15,   15,   16,   14,   15,   16,   16,   16,
    528. 

  528.    16,   16,   15,   16,   17,   16,   16,   16,   16,   16,
    529. 

  529.    17,   15,   16,   17,   17,   17,   17,   17,   16,   17,
    530. 

  530.    18,   17,   17,   17,   17,   17,   18,   16,   17,   18,
    531. 

  531.    18,   18,   18,   18,   17,   18,   19,   18,   18,   18,
    532. 

  532.    18,   18,   19,   17,   18,   19,   19,   19,   19,   19,
    533. 

  533.    18,   19,   20,   19,   19,   19,   19,   19,   20,   18,
    534. 

  534.    19,   20,   20,   20,   20,   20,   19,   20,   21,   20,
    535. 

  535.    20,   20,   20,   20,   21,   19,   20,   21,   21,   21,
    536. 

  536.    21,   21,   20,   21,   22,   21,   21,   21,   21,   21,
    537. 

  537.    22,   20,   21,   22,   22,   22,   22,   22,   21,   22,
    538. 

  538.    23,   22,   22,   22,   22,   22,   23,   21,   22,   23,
    539. 

  539.    23,   23,   23,   23,   22,   23,   24,   23,   23,   23,
    540. 

  540.    23,   23,   24,   22,   23,   24,   24,   24,   24,   24,
    541. 

  541.    23,   24,   25,   24,   24,   24,   24,   24,   25,   23,
    542. 

  542.    24,   25,   25,   25,   25,   25,   24,   25,   26,   25,
    543. 

  543.    25,   25,   25,   25,   26,   24,   25,   26,   26,   26,
    544. 

  544.    26,   26,   25,   26,   27,   26,   26,   26,   26,   26,
    545. 

  545.    27,   25,   26,   27,   27,   27,   27,   27,   26,   27,
    546. 

  546.    28,   27,   27,   27,   27,   27,   28,   26,   27,   28,
    547. 

  547.    28,   28,   28,   28,   27,   28,   29,   28,   28,   28,
    548. 

  548.    28,   28,   29,   27,   28,   29,   29,   29,   29,   29,
    549. 

  549.    28,   29,   30,   29,   29,   29,   29,   29,   30,   28,
    550. 

  550.    29,   30,   30,   30,   30,   30,   29,   30,   31,   30,
    551. 

  551.    30,   30,   30,   30,   31,   29,   30,   31,   31,   31,
    552. 

  552.    31,   31,   30,   31,   32,   31,   31,   31,   31,   31,
    553. 

  553.    32,   30,   31,   32,   32,   32,   32,   32,   31,   32,
    554. 

  554.    33,   32,   32,   32,   32,   32,   33,   31,   32,   33,
    555. 

  555.    33,   33,   33,   33,   32,   33,   34,   33,   33,   33,
    556. 

  556.    33,   33,   34,   32,   33,
    557. 

  557. };
    558. 

  558. 

  559. #endif /* __FSDITHER_H__ */
    560. 

  560.