407 lines
13 KiB
C++
407 lines
13 KiB
C++
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include "traster.h"
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/*
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#include "img.h"
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#include "file.h"
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#include "toonz.h"
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#include "raster.h"
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#include "tmsg.h"
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#include "copP.h"*/
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#ifdef MACOSX
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#define TRUE 1
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#define FALSE 0
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#endif
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/*------------------------------------------------------------------------*/
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namespace
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{
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UCHAR First_preseed_table[256] =
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{8, 0, 1, 0, 2, 2, 1, 0, 3, 3, 3, 3, 2, 2, 3, 3,
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4, 4, 1, 0, 2, 2, 1, 0, 4, 4, 3, 3, 2, 2, 3, 3,
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5, 5, 1, 5, 2, 2, 1, 5, 5, 5, 5, 5, 2, 2, 5, 5,
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4, 4, 1, 5, 2, 2, 1, 5, 4, 4, 5, 5, 2, 2, 5, 5,
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6, 6, 1, 6, 2, 2, 1, 6, 6, 6, 6, 6, 2, 2, 6, 6,
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4, 4, 1, 0, 2, 2, 1, 0, 4, 4, 8, 8, 2, 2, 8, 8,
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6, 6, 1, 6, 2, 2, 1, 6, 6, 6, 6, 6, 2, 2, 6, 6,
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4, 4, 1, 0, 2, 2, 1, 0, 4, 4, 8, 8, 2, 2, 8, 8,
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7, 7, 1, 7, 2, 2, 1, 7, 7, 7, 7, 7, 2, 2, 7, 7,
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4, 4, 1, 0, 2, 2, 1, 0, 4, 4, 3, 3, 2, 2, 3, 3,
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7, 7, 1, 7, 2, 2, 1, 7, 7, 7, 7, 7, 2, 2, 7, 7,
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4, 4, 1, 5, 2, 2, 1, 5, 4, 4, 5, 5, 2, 2, 5, 5,
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7, 7, 1, 7, 2, 2, 1, 7, 7, 7, 7, 7, 2, 2, 7, 7,
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4, 4, 1, 0, 2, 2, 1, 0, 4, 4, 8, 8, 2, 2, 8, 8,
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7, 7, 1, 7, 2, 2, 1, 7, 7, 7, 7, 7, 2, 2, 7, 7,
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4, 4, 1, 0, 2, 2, 1, 0, 4, 4, 8, 8, 2, 2, 8, 8};
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static UCHAR Next_point_table[2048] =
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{8, 8, 8, 8, 8, 8, 8, 8, 0, 0, 0, 0, 0, 0, 0, 0,
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1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1,
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2, 2, 2, 2, 2, 2, 2, 2, 2, 0, 0, 2, 2, 2, 2, 2,
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2, 2, 1, 2, 2, 2, 2, 2, 2, 0, 1, 2, 2, 2, 2, 2,
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3, 3, 3, 3, 3, 3, 3, 3, 3, 0, 0, 0, 0, 0, 0, 0,
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3, 3, 1, 1, 1, 1, 1, 1, 3, 0, 1, 1, 1, 1, 1, 1,
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3, 3, 3, 2, 2, 2, 2, 2, 3, 0, 0, 2, 2, 2, 2, 2,
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3, 3, 1, 2, 2, 2, 2, 2, 3, 0, 1, 2, 2, 2, 2, 2,
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4, 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 4, 0, 4, 4, 4,
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4, 4, 1, 4, 1, 4, 4, 4, 4, 0, 1, 4, 1, 4, 4, 4,
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4, 4, 4, 4, 2, 4, 4, 4, 4, 0, 0, 4, 2, 4, 4, 4,
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4, 4, 1, 4, 2, 4, 4, 4, 4, 0, 1, 4, 2, 4, 4, 4,
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3, 3, 3, 4, 3, 4, 4, 4, 3, 0, 0, 4, 0, 4, 4, 4,
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3, 3, 1, 4, 1, 4, 4, 4, 3, 0, 1, 4, 1, 4, 4, 4,
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3, 3, 3, 4, 2, 4, 4, 4, 3, 0, 0, 4, 2, 4, 4, 4,
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3, 3, 1, 4, 2, 4, 4, 4, 3, 0, 1, 4, 2, 4, 4, 4,
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5, 5, 5, 5, 5, 5, 5, 5, 5, 0, 0, 5, 0, 0, 0, 0,
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5, 5, 1, 5, 1, 1, 1, 1, 5, 0, 1, 5, 1, 1, 1, 1,
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5, 5, 5, 5, 2, 2, 2, 2, 5, 0, 0, 5, 2, 2, 2, 2,
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5, 5, 1, 5, 2, 2, 2, 2, 5, 0, 1, 5, 2, 2, 2, 2,
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3, 3, 3, 5, 3, 3, 3, 3, 3, 0, 0, 5, 0, 0, 0, 0,
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3, 3, 1, 5, 1, 1, 1, 1, 3, 0, 1, 5, 1, 1, 1, 1,
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3, 3, 3, 5, 2, 2, 2, 2, 3, 0, 0, 5, 2, 2, 2, 2,
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3, 3, 1, 5, 2, 2, 2, 2, 3, 0, 1, 5, 2, 2, 2, 2,
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5, 5, 5, 5, 5, 4, 4, 4, 5, 0, 0, 5, 0, 4, 4, 4,
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5, 5, 1, 5, 1, 4, 4, 4, 5, 0, 1, 5, 1, 4, 4, 4,
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5, 5, 5, 5, 2, 4, 4, 4, 5, 0, 0, 5, 2, 4, 4, 4,
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5, 5, 1, 5, 2, 4, 4, 4, 5, 0, 1, 5, 2, 4, 4, 4,
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3, 3, 3, 5, 3, 4, 4, 4, 3, 0, 0, 5, 0, 4, 4, 4,
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3, 3, 1, 5, 1, 4, 4, 4, 3, 0, 1, 5, 1, 4, 4, 4,
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3, 3, 3, 5, 2, 4, 4, 4, 3, 0, 0, 5, 2, 4, 4, 4,
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3, 3, 1, 5, 2, 4, 4, 4, 3, 0, 1, 5, 2, 4, 4, 4,
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6, 6, 6, 6, 6, 6, 6, 6, 6, 0, 0, 6, 0, 6, 0, 0,
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6, 6, 1, 6, 1, 6, 1, 1, 6, 0, 1, 6, 1, 6, 1, 1,
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6, 6, 6, 6, 2, 6, 2, 2, 6, 0, 0, 6, 2, 6, 2, 2,
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6, 6, 1, 6, 2, 6, 2, 2, 6, 0, 1, 6, 2, 6, 2, 2,
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3, 3, 3, 6, 3, 6, 3, 3, 3, 0, 0, 6, 0, 6, 0, 0,
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3, 3, 1, 6, 1, 6, 1, 1, 3, 0, 1, 6, 1, 6, 1, 1,
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3, 3, 3, 6, 2, 6, 2, 2, 3, 0, 0, 6, 2, 6, 2, 2,
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3, 3, 1, 6, 2, 6, 2, 2, 3, 0, 1, 6, 2, 6, 2, 2,
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6, 6, 6, 6, 6, 6, 4, 4, 6, 0, 0, 6, 0, 6, 4, 4,
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6, 6, 1, 6, 1, 6, 4, 4, 6, 0, 1, 6, 1, 6, 4, 4,
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6, 6, 6, 6, 2, 6, 4, 4, 6, 0, 0, 6, 2, 6, 4, 4,
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6, 6, 1, 6, 2, 6, 4, 4, 6, 0, 1, 6, 2, 6, 4, 4,
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3, 3, 3, 6, 3, 6, 4, 4, 3, 0, 0, 6, 0, 6, 4, 4,
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3, 3, 1, 6, 1, 6, 4, 4, 3, 0, 1, 6, 1, 6, 4, 4,
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3, 3, 3, 6, 2, 6, 4, 4, 3, 0, 0, 6, 2, 6, 4, 4,
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3, 3, 1, 6, 2, 6, 4, 4, 3, 0, 1, 6, 2, 6, 4, 4,
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5, 5, 5, 5, 5, 6, 5, 5, 5, 0, 0, 5, 0, 6, 0, 0,
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5, 5, 1, 5, 1, 6, 1, 1, 5, 0, 1, 5, 1, 6, 1, 1,
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5, 5, 5, 5, 2, 6, 2, 2, 5, 0, 0, 5, 2, 6, 2, 2,
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5, 5, 1, 5, 2, 6, 2, 2, 5, 0, 1, 5, 2, 6, 2, 2,
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3, 3, 3, 5, 3, 6, 3, 3, 3, 0, 0, 5, 0, 6, 0, 0,
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3, 3, 1, 5, 1, 6, 1, 1, 3, 0, 1, 5, 1, 6, 1, 1,
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3, 3, 3, 5, 2, 6, 2, 2, 3, 0, 0, 5, 2, 6, 2, 2,
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3, 3, 1, 5, 2, 6, 2, 2, 3, 0, 1, 5, 2, 6, 2, 2,
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5, 5, 5, 5, 5, 6, 4, 4, 5, 0, 0, 5, 0, 6, 4, 4,
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5, 5, 1, 5, 1, 6, 4, 4, 5, 0, 1, 5, 1, 6, 4, 4,
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5, 5, 5, 5, 2, 6, 4, 4, 5, 0, 0, 5, 2, 6, 4, 4,
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5, 5, 1, 5, 2, 6, 4, 4, 5, 0, 1, 5, 2, 6, 4, 4,
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3, 3, 3, 5, 3, 6, 4, 4, 3, 0, 0, 5, 0, 6, 4, 4,
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3, 3, 1, 5, 1, 6, 4, 4, 3, 0, 1, 5, 1, 6, 4, 4,
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3, 3, 3, 5, 2, 6, 4, 4, 3, 0, 0, 5, 2, 6, 4, 4,
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3, 3, 1, 5, 2, 6, 4, 4, 3, 0, 1, 5, 2, 6, 4, 4,
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7, 7, 7, 7, 7, 7, 7, 7, 7, 0, 0, 7, 0, 7, 7, 0,
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7, 7, 1, 7, 1, 7, 7, 1, 7, 0, 1, 7, 1, 7, 7, 1,
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7, 7, 7, 7, 2, 7, 7, 2, 7, 0, 0, 7, 2, 7, 7, 2,
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7, 7, 1, 7, 2, 7, 7, 2, 7, 0, 1, 7, 2, 7, 7, 2,
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3, 3, 3, 7, 3, 7, 7, 3, 3, 0, 0, 7, 0, 7, 7, 0,
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3, 3, 1, 7, 1, 7, 7, 1, 3, 0, 1, 7, 1, 7, 7, 1,
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3, 3, 3, 7, 2, 7, 7, 2, 3, 0, 0, 7, 2, 7, 7, 2,
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3, 3, 1, 7, 2, 7, 7, 2, 3, 0, 1, 7, 2, 7, 7, 2,
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7, 7, 7, 7, 7, 7, 7, 4, 7, 0, 0, 7, 0, 7, 7, 4,
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7, 7, 1, 7, 1, 7, 7, 4, 7, 0, 1, 7, 1, 7, 7, 4,
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7, 7, 7, 7, 2, 7, 7, 4, 7, 0, 0, 7, 2, 7, 7, 4,
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7, 7, 1, 7, 2, 7, 7, 4, 7, 0, 1, 7, 2, 7, 7, 4,
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3, 3, 3, 7, 3, 7, 7, 4, 3, 0, 0, 7, 0, 7, 7, 4,
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3, 3, 1, 7, 1, 7, 7, 4, 3, 0, 1, 7, 1, 7, 7, 4,
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3, 3, 3, 7, 2, 7, 7, 4, 3, 0, 0, 7, 2, 7, 7, 4,
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3, 3, 1, 7, 2, 7, 7, 4, 3, 0, 1, 7, 2, 7, 7, 4,
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5, 5, 5, 5, 5, 7, 7, 5, 5, 0, 0, 5, 0, 7, 7, 0,
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5, 5, 1, 5, 1, 7, 7, 1, 5, 0, 1, 5, 1, 7, 7, 1,
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5, 5, 5, 5, 2, 7, 7, 2, 5, 0, 0, 5, 2, 7, 7, 2,
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5, 5, 1, 5, 2, 7, 7, 2, 5, 0, 1, 5, 2, 7, 7, 2,
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3, 3, 3, 5, 3, 7, 7, 3, 3, 0, 0, 5, 0, 7, 7, 0,
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3, 3, 1, 5, 1, 7, 7, 1, 3, 0, 1, 5, 1, 7, 7, 1,
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3, 3, 3, 5, 2, 7, 7, 2, 3, 0, 0, 5, 2, 7, 7, 2,
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3, 3, 1, 5, 2, 7, 7, 2, 3, 0, 1, 5, 2, 7, 7, 2,
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5, 5, 5, 5, 5, 7, 7, 4, 5, 0, 0, 5, 0, 7, 7, 4,
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5, 5, 1, 5, 1, 7, 7, 4, 5, 0, 1, 5, 1, 7, 7, 4,
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5, 5, 5, 5, 2, 7, 7, 4, 5, 0, 0, 5, 2, 7, 7, 4,
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5, 5, 1, 5, 2, 7, 7, 4, 5, 0, 1, 5, 2, 7, 7, 4,
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3, 3, 3, 5, 3, 7, 7, 4, 3, 0, 0, 5, 0, 7, 7, 4,
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3, 3, 1, 5, 1, 7, 7, 4, 3, 0, 1, 5, 1, 7, 7, 4,
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3, 3, 3, 5, 2, 7, 7, 4, 3, 0, 0, 5, 2, 7, 7, 4,
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3, 3, 1, 5, 2, 7, 7, 4, 3, 0, 1, 5, 2, 7, 7, 4,
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6, 6, 6, 6, 6, 6, 7, 6, 6, 0, 0, 6, 0, 6, 7, 0,
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6, 6, 1, 6, 1, 6, 7, 1, 6, 0, 1, 6, 1, 6, 7, 1,
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6, 6, 6, 6, 2, 6, 7, 2, 6, 0, 0, 6, 2, 6, 7, 2,
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6, 6, 1, 6, 2, 6, 7, 2, 6, 0, 1, 6, 2, 6, 7, 2,
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3, 3, 3, 6, 3, 6, 7, 3, 3, 0, 0, 6, 0, 6, 7, 0,
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3, 3, 1, 6, 1, 6, 7, 1, 3, 0, 1, 6, 1, 6, 7, 1,
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3, 3, 3, 6, 2, 6, 7, 2, 3, 0, 0, 6, 2, 6, 7, 2,
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3, 3, 1, 6, 2, 6, 7, 2, 3, 0, 1, 6, 2, 6, 7, 2,
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6, 6, 6, 6, 6, 6, 7, 4, 6, 0, 0, 6, 0, 6, 7, 4,
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6, 6, 1, 6, 1, 6, 7, 4, 6, 0, 1, 6, 1, 6, 7, 4,
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6, 6, 6, 6, 2, 6, 7, 4, 6, 0, 0, 6, 2, 6, 7, 4,
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6, 6, 1, 6, 2, 6, 7, 4, 6, 0, 1, 6, 2, 6, 7, 4,
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3, 3, 3, 6, 3, 6, 7, 4, 3, 0, 0, 6, 0, 6, 7, 4,
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3, 3, 1, 6, 1, 6, 7, 4, 3, 0, 1, 6, 1, 6, 7, 4,
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3, 3, 3, 6, 2, 6, 7, 4, 3, 0, 0, 6, 2, 6, 7, 4,
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3, 3, 1, 6, 2, 6, 7, 4, 3, 0, 1, 6, 2, 6, 7, 4,
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5, 5, 5, 5, 5, 6, 7, 5, 5, 0, 0, 5, 0, 6, 7, 0,
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5, 5, 1, 5, 1, 6, 7, 1, 5, 0, 1, 5, 1, 6, 7, 1,
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5, 5, 5, 5, 2, 6, 7, 2, 5, 0, 0, 5, 2, 6, 7, 2,
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5, 5, 1, 5, 2, 6, 7, 2, 5, 0, 1, 5, 2, 6, 7, 2,
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3, 3, 3, 5, 3, 6, 7, 3, 3, 0, 0, 5, 0, 6, 7, 0,
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3, 3, 1, 5, 1, 6, 7, 1, 3, 0, 1, 5, 1, 6, 7, 1,
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3, 3, 3, 5, 2, 6, 7, 2, 3, 0, 0, 5, 2, 6, 7, 2,
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3, 3, 1, 5, 2, 6, 7, 2, 3, 0, 1, 5, 2, 6, 7, 2,
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5, 5, 5, 5, 5, 6, 7, 4, 5, 0, 0, 5, 0, 6, 7, 4,
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5, 5, 1, 5, 1, 6, 7, 4, 5, 0, 1, 5, 1, 6, 7, 4,
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5, 5, 5, 5, 2, 6, 7, 4, 5, 0, 0, 5, 2, 6, 7, 4,
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5, 5, 1, 5, 2, 6, 7, 4, 5, 0, 1, 5, 2, 6, 7, 4,
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3, 3, 3, 5, 3, 6, 7, 4, 3, 0, 0, 5, 0, 6, 7, 4,
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3, 3, 1, 5, 1, 6, 7, 4, 3, 0, 1, 5, 1, 6, 7, 4,
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3, 3, 3, 5, 2, 6, 7, 4, 3, 0, 0, 5, 2, 6, 7, 4,
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3, 3, 1, 5, 2, 6, 7, 4, 3, 0, 1, 5, 2, 6, 7, 4};
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/*------------------------------------------------------------------------*/
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int Lx;
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int Displace_vector[8];
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#define E_PIX(pix) \
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(*(pix + 1))
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#define W_PIX(pix) \
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(*(pix - 1))
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#define N_PIX(pix) \
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(*(pix + Lx))
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#define S_PIX(pix) \
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(*(pix - Lx))
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#define SW_PIX(pix) \
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(*(pix - Lx - 1))
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#define NW_PIX(pix) \
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(*(pix + Lx - 1))
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#define NE_PIX(pix) \
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(*(pix + Lx + 1))
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#define SE_PIX(pix) \
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(*(pix - Lx + 1))
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#define NEIGHBOURS_CODE(pix) \
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(((SW_PIX(pix) != 0) << 0) | \
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((S_PIX(pix) != 0) << 1) | \
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((SE_PIX(pix) != 0) << 2) | \
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((W_PIX(pix) != 0) << 3) | \
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((E_PIX(pix) != 0) << 4) | \
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((NW_PIX(pix) != 0) << 5) | \
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((N_PIX(pix) != 0) << 6) | \
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((NE_PIX(pix) != 0) << 7))
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/*------------------------------------------------------------------------*/
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#define FIRST_PRESEED(code) \
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First_preseed_table[code]
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/*------------------------------------------------------------------------*/
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#define NEXT_POINT(code, preseed) \
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Next_point_table[(code << 3) | preseed]
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/*------------------------------------------------------------------------*/
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#define UPDATE_POS(displ_code, x_pos, y_pos) \
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switch (displ_code) { \
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CASE 0 : x_pos--; \
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y_pos--; \
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CASE 1 : y_pos--; \
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CASE 2 : x_pos++; \
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y_pos--; \
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CASE 3 : x_pos--; \
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CASE 4 : x_pos++; \
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CASE 5 : x_pos--; \
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y_pos++; \
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CASE 6 : y_pos++; \
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CASE 7 : x_pos++; \
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y_pos++; \
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DEFAULT: \
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assert(FALSE); \
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}
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/*------------------------------------------------------------------------*/
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/*=============================================================================*/
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/*---------------------------------------------------------------------------*/
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static int fillByteRaster(const TRaster32P &rin, TRasterGR8P &rout)
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{
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bool ret = false;
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assert(rin->getLx() == rout->getLx() - 2 && rin->getLy() == rout->getLy() - 2);
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memset(rout->getRawData(), 0, rout->getLx() * rout->getLy());
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for (int i = 0; i < rin->getLy(); i++) {
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TPixel32 *bufIn = (TPixel32 *)rin->getRawData() + i * rin->getWrap();
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UCHAR *bufOut = (UCHAR *)rout->getRawData() + (i + 1) * rout->getWrap() + 1;
|
||
|
|
||
|
for (int j = 0; j < rin->getLx(); j++, bufIn++, bufOut++)
|
||
|
if (bufIn->m != 0) {
|
||
|
ret = true;
|
||
|
*bufOut = 1;
|
||
|
}
|
||
|
}
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
/*---------------------------------------------------------------------------*/
|
||
|
|
||
|
static void initialize_displace_vector(void)
|
||
|
{
|
||
|
Displace_vector[0] = -Lx - 1;
|
||
|
Displace_vector[1] = -Lx;
|
||
|
Displace_vector[2] = -Lx + 1;
|
||
|
Displace_vector[3] = -1;
|
||
|
Displace_vector[4] = +1;
|
||
|
Displace_vector[5] = Lx - 1;
|
||
|
Displace_vector[6] = Lx;
|
||
|
Displace_vector[7] = Lx + 1;
|
||
|
}
|
||
|
|
||
|
/*------------------------------------------------------------------------*/
|
||
|
|
||
|
static int find_next_seed(const TRasterGR8P &r, int first_seed,
|
||
|
UCHAR *&seed, int &x_pos, int &y_pos)
|
||
|
{
|
||
|
static int Curr_x = 0, Curr_y = 0;
|
||
|
UCHAR *pix;
|
||
|
|
||
|
if (first_seed) {
|
||
|
Curr_x = 0;
|
||
|
Curr_y = 0;
|
||
|
}
|
||
|
|
||
|
seed = 0;
|
||
|
|
||
|
for (; Curr_y < r->getLy(); Curr_y++) {
|
||
|
pix = (UCHAR *)r->getRawData() + Curr_y * r->getWrap() + Curr_x;
|
||
|
for (; Curr_x < r->getLx(); Curr_x++, pix++)
|
||
|
if (*pix == 1 &&
|
||
|
(!E_PIX(pix) ||
|
||
|
!W_PIX(pix) ||
|
||
|
!N_PIX(pix) ||
|
||
|
!S_PIX(pix))) {
|
||
|
seed = pix;
|
||
|
x_pos = Curr_x;
|
||
|
y_pos = Curr_y;
|
||
|
return true;
|
||
|
}
|
||
|
Curr_x = 0;
|
||
|
}
|
||
|
return false;
|
||
|
}
|
||
|
|
||
|
/*------------------------------------------------------------------------*/
|
||
|
|
||
|
#define COMPUTE_NUM_DEN(x_pos, y_pos, old_x_pos, old_y_pos) \
|
||
|
{ \
|
||
|
aux = old_x_pos * y_pos - x_pos * old_y_pos; \
|
||
|
den += aux; \
|
||
|
x_num += (x_pos + old_x_pos) * aux; \
|
||
|
y_num += (y_pos + old_y_pos) * aux; \
|
||
|
}
|
||
|
|
||
|
/*------------------------------------------------------------------------*/
|
||
|
|
||
|
void doComputeCentroid(const TRasterGR8P &r, TPoint &cp)
|
||
|
{
|
||
|
int preseed, displ, prewalker, code;
|
||
|
UCHAR *seed, *walker;
|
||
|
int x_num = 0, y_num = 0, den = 0;
|
||
|
int x_pos, y_pos, old_x_pos, old_y_pos;
|
||
|
int aux, old_displ = -1;
|
||
|
int first_seed;
|
||
|
|
||
|
Lx = r->getLx();
|
||
|
Displace_vector[0] = -Lx - 1;
|
||
|
Displace_vector[1] = -Lx;
|
||
|
Displace_vector[2] = -Lx + 1;
|
||
|
Displace_vector[3] = -1;
|
||
|
Displace_vector[4] = +1;
|
||
|
Displace_vector[5] = Lx - 1;
|
||
|
Displace_vector[6] = Lx;
|
||
|
Displace_vector[7] = Lx + 1;
|
||
|
|
||
|
first_seed = TRUE;
|
||
|
|
||
|
while (find_next_seed(r, first_seed, seed, x_pos, y_pos)) {
|
||
|
first_seed = FALSE;
|
||
|
|
||
|
*seed |= 0x2;
|
||
|
|
||
|
code = NEIGHBOURS_CODE(seed);
|
||
|
preseed = FIRST_PRESEED(code);
|
||
|
|
||
|
if (preseed == 8)
|
||
|
continue;
|
||
|
|
||
|
displ = NEXT_POINT(code, preseed);
|
||
|
|
||
|
walker = seed + Displace_vector[displ];
|
||
|
|
||
|
old_x_pos = x_pos;
|
||
|
old_y_pos = y_pos;
|
||
|
|
||
|
UPDATE_POS(displ, x_pos, y_pos)
|
||
|
|
||
|
COMPUTE_NUM_DEN(x_pos, y_pos, old_x_pos, old_y_pos)
|
||
|
|
||
|
prewalker = displ ^ 0x7;
|
||
|
|
||
|
while ((walker != seed) || (preseed != prewalker)) {
|
||
|
*walker |= 0x2;
|
||
|
|
||
|
displ = NEXT_POINT(NEIGHBOURS_CODE(walker), prewalker);
|
||
|
|
||
|
walker += Displace_vector[displ];
|
||
|
old_x_pos = x_pos;
|
||
|
old_y_pos = y_pos;
|
||
|
UPDATE_POS(displ, x_pos, y_pos)
|
||
|
COMPUTE_NUM_DEN(x_pos, y_pos, old_x_pos, old_y_pos)
|
||
|
prewalker = displ ^ 0x7;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (den)
|
||
|
cp = TPoint(tround(x_num / (3.0 * den)), tround(y_num / (3.0 * den)));
|
||
|
}
|
||
|
|
||
|
} //namespace
|
||
|
|
||
|
TPoint computeCentroid(const TRaster32P &r)
|
||
|
{
|
||
|
TPoint ret(1, 1);
|
||
|
|
||
|
TRasterGR8P raux(r->getLx() + 2, r->getLy() + 2);
|
||
|
|
||
|
if (fillByteRaster(r, raux))
|
||
|
doComputeCentroid(raux, ret);
|
||
|
|
||
|
ret.x--;
|
||
|
ret.y--; /* per il bordo aggiunto */
|
||
|
return ret;
|
||
|
}
|