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Sourcecode: vic version File versions

Util.h

/*
 * Util.h -- a merge from Uwe's ScalVico and Klaus' h263
 *
 * 15.12.97, jw.
 */
#ifndef _UTIL_
#define _UTIL_

#include <malloc.h>
#include "error.h"
#include <stdlib.h>
#include <stdio.h>

/***********************/
/* one-argument macros */
/***********************/
#ifdef ABS
#undef ABS
#endif
#define ABS(a)          (((a)<0) ? -(a) : (a))

#ifdef MAX
#undef MAX
#endif
#define  MAX(a, b)      ( (a) > (b) ? (a) : (b) )
#ifdef MIN
#undef MIN
#endif
#define  MIN(a, b)      ( (a) < (b) ? (a) : (b) )

/* round a to nearest integer towards 0 */
#define FLOOR(a)        ((a)>0 ? (int)(a) : -(int)(-a))

/* round a to nearest integer away from 0 */
#define CEILING(a) \
((a)==(int)(a) ? (a) : (a)>0 ? 1+(int)(a) : -(1+(int)(-a)))

/* round a to nearest int */

#ifndef ROUND
#define ROUND(a)  ((a)>0 ? (int)((a)+0.5) : -(int)(0.5-(a)))            
#endif

/* take sign of a, either -1, 0, or 1 */
#define ZSGN(a)         (((a)<0) ? -1 : (a)>0 ? 1 : 0)      

/* take binary sign of a, either -1, or 1 if >= 0 */
#define SGN(a)          (((a)<0) ? -1 : 1)

/* square a */
#define SQR(a)          ((a)*(a))   

/* logarithmus dualis */
#define LN_2            0.69314718
#define LD(a)           (log(a)/LN_2)

/***********************/
/* two-argument macros */
/***********************/

/* swap a and b (see Gem by Wyvill) */
#define SWAP(a,b) { a^=b; b^=a; a^=b; }

/* linear interpolation from l (when a=0) to h (when a=1)*/
/* (equal to (a*h)+((1-a)*l) */
#define LERP(a,l,h)     ((l)+(((h)-(l))*(a)))

/* clamp the input to the specified range */
#define CLAMP(v,l,h)   ((v)<(l) ? (l) : ((v) > (h) ? (h) : v))
#define CLIP(v,l,h)    ((v)<(l) ? (l) : ((v) > (h) ? (h) : v))
     /*#define CLIPBYTE(v)    ((v)<(0) ? (0) : ((v) > (255) ? (255) : v))*/



#ifdef DEFINE_GLOBALS
#define GLOBAL
#define INIT(x) = x
#else
#define GLOBAL extern
#define INIT(x)
#endif


#ifndef NEW
#define NEW(x) (x *) malloc (sizeof(x))
#endif
#define NEWELEMS(x,n) (x *) malloc ((n)*sizeof(x))

#define ERRORS(file, line, text) {fprintf(stderr, file "Line %d; " text, \
                               line);exit(1);}

#define EXIT_WITH_ERR(message) ERRORS(__FILE__, __LINE__, message)

#ifdef ASSERT
#undef ASSERT
#endif
#define ASSERT(x)               if (!(x)) {EXIT_WITH_ERR("ASSERT failt\n");}

#define MAX_NEG_CROP 384
#define NUM_CROP_ENTRIES (256+2*MAX_NEG_CROP)

/* #define ROUNDCROP(val) (cropTbl[MAX_NEG_CROP+(int)(val)])*/
#define CROPBYTE(val)      (clp[(val)])
#define ROUNDCROPBYTE(val) (rclp[(int)(2.0*(val))])

#define ICROPBYTE(val)     (iclp[(val)])
#define ROUNDICROPBYTE(val) (iclp[(int)(val)])


/* if PROTOCOL is defined a lot of information can be written to the protocol
   file if the commandline argument is also chosen */
#define PROTOCOL
#ifdef PROTOCOL
GLOBAL int  protFormat_g;
GLOBAL FILE *fp_prot_g;
#endif

/* if PROTOCOL is defined a lot of information can be written to the protocol
   file if the commandline argument is also chosen */
#undef COUNT_BITS
#ifdef COUNT_BITS
struct bit_count_struct {
  int totalFrames;
  int totalBits;
  int headerBits;
  int motionBits;
  int lumBits;
  int lum1Bits;
  int lum2Bits;
  int lum3Bits;
  int chromBits;
};

GLOBAL struct bit_count_struct *bitCount;
GLOBAL struct bit_count_struct *bitCountP;
#endif

/* Quantization tables for H.263 */
GLOBAL unsigned char quantInit INIT(0);
GLOBAL signed char quant_table_0[4081];
GLOBAL signed char *quant_table INIT(quant_table_0 + 2040);
GLOBAL signed short dequant_table_0[255];
GLOBAL signed short *dequant_table INIT(dequant_table_0 + 127);


/* Clipping tables */
GLOBAL const unsigned char clip_pos[1024]
#ifdef DEFINE_GLOBALS
 = {
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,
  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,
  114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,
  133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,
  152,153,154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,
  171,172,173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,
  190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,
  209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,
  228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,
  247,248,249,250,251,252,253,254,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255}
#endif
;
GLOBAL const unsigned char *clp INIT(clip_pos + 384);

GLOBAL const unsigned char rclip_pos[2048]
#ifdef DEFINE_GLOBALS
 = {
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
  0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,2,2,3,3,4,4,
  5,5,6,6,7,7,8,8,9,9,10,10,11,11,12,12,13,13,14,14,15,15,16,16,17,17,18,18,
  19,19,20,20,21,21,22,22,23,23,24,24,25,25,26,26,27,27,28,28,29,29,30,30,
  31,31,32,32,33,33,34,34,35,35,36,36,37,37,38,38,39,39,40,40,41,41,42,42,
  43,43,44,44,45,45,46,46,47,47,48,48,49,49,50,50,51,51,52,52,53,53,54,54,
  55,55,56,56,57,57,58,58,59,59,60,60,61,61,62,62,63,63,64,64,65,65,66,66,
  67,67,68,68,69,69,70,70,71,71,72,72,73,73,74,74,75,75,76,76,77,77,78,78,
  79,79,80,80,81,81,82,82,83,83,84,84,85,85,86,86,87,87,88,88,89,89,90,90,
  91,91,92,92,93,93,94,94,95,95,96,96,97,97,98,98,99,99,100,100,101,101,
  102,102,103,103,104,104,105,105,106,106,107,107,108,108,109,109,110,110,
  111,111,112,112,113,113,114,114,115,115,116,116,117,117,118,118,119,119,
  120,120,121,121,122,122,123,123,124,124,125,125,126,126,127,127,128,128,
  129,129,130,130,131,131,132,132,133,133,134,134,135,135,136,136,137,137,
  138,138,139,139,140,140,141,141,142,142,143,143,144,144,145,145,146,146,
  147,147,148,148,149,149,150,150,151,151,152,152,153,153,154,154,155,155,
  156,156,157,157,158,158,159,159,160,160,161,161,162,162,163,163,164,164,
  165,165,166,166,167,167,168,168,169,169,170,170,171,171,172,172,173,173,
  174,174,175,175,176,176,177,177,178,178,179,179,180,180,181,181,182,182,
  183,183,184,184,185,185,186,186,187,187,188,188,189,189,190,190,191,191,
  192,192,193,193,194,194,195,195,196,196,197,197,198,198,199,199,200,200,
  201,201,202,202,203,203,204,204,205,205,206,206,207,207,208,208,209,209,
  210,210,211,211,212,212,213,213,214,214,215,215,216,216,217,217,218,218,
  219,219,220,220,221,221,222,222,223,223,224,224,225,225,226,226,227,227,
  228,228,229,229,230,230,231,231,232,232,233,233,234,234,235,235,236,236,
  237,237,238,238,239,239,240,240,241,241,242,242,243,243,244,244,245,245,
  246,246,247,247,248,248,249,249,250,250,251,251,252,252,253,253,254,254,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
  255,255,255,255,255,255,255,255,255,255,255,255,255,255,255}
#endif
;
GLOBAL const unsigned char *rclp INIT(rclip_pos + 768);

GLOBAL const short iclip_pos[1024]
#ifdef DEFINE_GLOBALS
 = {
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,-256,
   -256,-256,-256,-256,-256,-255,-254,-253,-252,-251,-250,-249,-248,-247,
   -246,-245,-244,-243,-242,-241,-240,-239,-238,-237,-236,-235,-234,-233,
   -232,-231,-230,-229,-228,-227,-226,-225,-224,-223,-222,-221,-220,-219,
   -218,-217,-216,-215,-214,-213,-212,-211,-210,-209,-208,-207,-206,-205,
   -204,-203,-202,-201,-200,-199,-198,-197,-196,-195,-194,-193,-192,-191,
   -190,-189,-188,-187,-186,-185,-184,-183,-182,-181,-180,-179,-178,-177,
   -176,-175,-174,-173,-172,-171,-170,-169,-168,-167,-166,-165,-164,-163,
   -162,-161,-160,-159,-158,-157,-156,-155,-154,-153,-152,-151,-150,-149,
   -148,-147,-146,-145,-144,-143,-142,-141,-140,-139,-138,-137,-136,-135,
   -134,-133,-132,-131,-130,-129,-128,-127,-126,-125,-124,-123,-122,-121,
   -120,-119,-118,-117,-116,-115,-114,-113,-112,-111,-110,-109,-108,-107,
   -106,-105,-104,-103,-102,-101,-100,-99,-98,-97,-96,-95,-94,-93,-92,-91,
   -90,-89,-88,-87,-86,-85,-84,-83,-82,-81,-80,-79,-78,-77,-76,-75,-74,-73,
   -72,-71,-70,-69,-68,-67,-66,-65,-64,-63,-62,-61,-60,-59,-58,-57,-56,-55,
   -54,-53,-52,-51,-50,-49,-48,-47,-46,-45,-44,-43,-42,-41,-40,-39,-38,-37,
   -36,-35,-34,-33,-32,-31,-30,-29,-28,-27,-26,-25,-24,-23,-22,-21,-20,-19,
   -18,-17,-16,-15,-14,-13,-12,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,
   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,
   119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,
   137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,
   155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,
   173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,
   191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,
   209,210,211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,
   227,228,229,230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,
   245,246,247,248,249,250,251,252,253,254,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
   255,255,255,255,255,255,255,255,255,255,255,255,255,255,255}
#endif
;
GLOBAL const short *iclp INIT(iclip_pos + 512);


#if 0
GLOBAL const short mvd_clip_pos[127]
#ifdef DEFINE_GLOBALS
 = {
   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,-31,-30,-29,-28,-27,-26,-25,-24,-23,-22,-21,-20,-19,-18,-17,-16,-15,
   -14,-13,-12,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,
   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,-31,-30,-29,-28,-27,-26,-25,-24,-23,-22,-21,-20,-19,-18,-17,-16,-15,
   -14,-13,-12,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1}
#endif
;
GLOBAL const short *mvd_clp INIT(mvd_clip_pos + 63);
#endif


GLOBAL short spiral[961][2]
#ifdef DEFINE_GLOBALS
 = {
{0    ,0  },
{-1   ,-1 }, 
{0    ,-1 }, 
{1    ,-1 }, 
{1    ,0  }, 
{1    ,1  }, 
{0    ,1  }, 
{-1   ,1  }, 
{-1   ,0  }, 
{-2   ,-2 }, 
{-1   ,-2 }, 
{0    ,-2 }, 
{1    ,-2 }, 
{2    ,-2 }, 
{2    ,-1 }, 
{2    ,0  }, 
{2    ,1  }, 
{2    ,2  }, 
{1    ,2  }, 
{0    ,2  }, 
{-1   ,2  }, 
{-2   ,2  }, 
{-2   ,1  }, 
{-2   ,0  }, 
{-2   ,-1 }, 
{-3   ,-3 }, 
{-2   ,-3 }, 
{-1   ,-3 }, 
{0    ,-3 }, 
{1    ,-3 }, 
{2    ,-3 }, 
{3    ,-3 }, 
{3    ,-2 }, 
{3    ,-1 }, 
{3    ,0  }, 
{3    ,1  }, 
{3    ,2  }, 
{3    ,3  }, 
{2    ,3  }, 
{1    ,3  }, 
{0    ,3  }, 
{-1   ,3  }, 
{-2   ,3  }, 
{-3   ,3  }, 
{-3   ,2  }, 
{-3   ,1  }, 
{-3   ,0  }, 
{-3   ,-1 }, 
{-3   ,-2 }, 
{-4   ,-4 }, 
{-3   ,-4 }, 
{-2   ,-4 }, 
{-1   ,-4 }, 
{0    ,-4 }, 
{1    ,-4 }, 
{2    ,-4 }, 
{3    ,-4 }, 
{4    ,-4 }, 
{4    ,-3 }, 
{4    ,-2 }, 
{4    ,-1 }, 
{4    ,0  }, 
{4    ,1  }, 
{4    ,2  }, 
{4    ,3  }, 
{4    ,4  }, 
{3    ,4  }, 
{2    ,4  }, 
{1    ,4  }, 
{0    ,4  }, 
{-1   ,4  }, 
{-2   ,4  }, 
{-3   ,4  }, 
{-4   ,4  }, 
{-4   ,3  }, 
{-4   ,2  }, 
{-4   ,1  }, 
{-4   ,0  }, 
{-4   ,-1 }, 
{-4   ,-2 }, 
{-4   ,-3 }, 
{-5   ,-5 }, 
{-4   ,-5 }, 
{-3   ,-5 }, 
{-2   ,-5 }, 
{-1   ,-5 }, 
{0    ,-5 }, 
{1    ,-5 }, 
{2    ,-5 }, 
{3    ,-5 }, 
{4    ,-5 }, 
{5    ,-5 }, 
{5    ,-4 }, 
{5    ,-3 }, 
{5    ,-2 }, 
{5    ,-1 }, 
{5    ,0  }, 
{5    ,1  }, 
{5    ,2  }, 
{5    ,3  }, 
{5    ,4  }, 
{5    ,5  }, 
{4    ,5  }, 
{3    ,5  }, 
{2    ,5  }, 
{1    ,5  }, 
{0    ,5  }, 
{-1   ,5  }, 
{-2   ,5  }, 
{-3   ,5  }, 
{-4   ,5  }, 
{-5   ,5  }, 
{-5   ,4  }, 
{-5   ,3  }, 
{-5   ,2  }, 
{-5   ,1  }, 
{-5   ,0  }, 
{-5   ,-1 }, 
{-5   ,-2 }, 
{-5   ,-3 }, 
{-5   ,-4 }, 
{-6   ,-6 }, 
{-5   ,-6 }, 
{-4   ,-6 }, 
{-3   ,-6 }, 
{-2   ,-6 }, 
{-1   ,-6 }, 
{0    ,-6 }, 
{1    ,-6 }, 
{2    ,-6 }, 
{3    ,-6 }, 
{4    ,-6 }, 
{5    ,-6 }, 
{6    ,-6 }, 
{6    ,-5 }, 
{6    ,-4 }, 
{6    ,-3 }, 
{6    ,-2 }, 
{6    ,-1 }, 
{6    ,0  }, 
{6    ,1  }, 
{6    ,2  }, 
{6    ,3  }, 
{6    ,4  }, 
{6    ,5  }, 
{6    ,6  }, 
{5    ,6  }, 
{4    ,6  }, 
{3    ,6  }, 
{2    ,6  }, 
{1    ,6  }, 
{0    ,6  }, 
{-1   ,6  }, 
{-2   ,6  }, 
{-3   ,6  }, 
{-4   ,6  }, 
{-5   ,6  }, 
{-6   ,6  }, 
{-6   ,5  }, 
{-6   ,4  }, 
{-6   ,3  }, 
{-6   ,2  }, 
{-6   ,1  }, 
{-6   ,0  }, 
{-6   ,-1 }, 
{-6   ,-2 }, 
{-6   ,-3 }, 
{-6   ,-4 }, 
{-6   ,-5 }, 
{-7   ,-7 }, 
{-6   ,-7 }, 
{-5   ,-7 }, 
{-4   ,-7 }, 
{-3   ,-7 }, 
{-2   ,-7 }, 
{-1   ,-7 }, 
{0    ,-7 }, 
{1    ,-7 }, 
{2    ,-7 }, 
{3    ,-7 }, 
{4    ,-7 }, 
{5    ,-7 }, 
{6    ,-7 }, 
{7    ,-7 }, 
{7    ,-6 }, 
{7    ,-5 }, 
{7    ,-4 }, 
{7    ,-3 }, 
{7    ,-2 }, 
{7    ,-1 }, 
{7    ,0  }, 
{7    ,1  }, 
{7    ,2  }, 
{7    ,3  }, 
{7    ,4  }, 
{7    ,5  }, 
{7    ,6  }, 
{7    ,7  }, 
{6    ,7  }, 
{5    ,7  }, 
{4    ,7  }, 
{3    ,7  }, 
{2    ,7  }, 
{1    ,7  }, 
{0    ,7  }, 
{-1   ,7  }, 
{-2   ,7  }, 
{-3   ,7  }, 
{-4   ,7  }, 
{-5   ,7  }, 
{-6   ,7  }, 
{-7   ,7  }, 
{-7   ,6  }, 
{-7   ,5  }, 
{-7   ,4  }, 
{-7   ,3  }, 
{-7   ,2  }, 
{-7   ,1  }, 
{-7   ,0  }, 
{-7   ,-1 }, 
{-7   ,-2 }, 
{-7   ,-3 }, 
{-7   ,-4 }, 
{-7   ,-5 }, 
{-7   ,-6 }, 
{-8   ,-8 }, 
{-7   ,-8 }, 
{-6   ,-8 }, 
{-5   ,-8 }, 
{-4   ,-8 }, 
{-3   ,-8 }, 
{-2   ,-8 }, 
{-1   ,-8 }, 
{0    ,-8 }, 
{1    ,-8 }, 
{2    ,-8 }, 
{3    ,-8 }, 
{4    ,-8 }, 
{5    ,-8 }, 
{6    ,-8 }, 
{7    ,-8 }, 
{8    ,-8 }, 
{8    ,-7 }, 
{8    ,-6 }, 
{8    ,-5 }, 
{8    ,-4 }, 
{8    ,-3 }, 
{8    ,-2 }, 
{8    ,-1 }, 
{8    ,0  }, 
{8    ,1  }, 
{8    ,2  }, 
{8    ,3  }, 
{8    ,4  }, 
{8    ,5  }, 
{8    ,6  }, 
{8    ,7  }, 
{8    ,8  }, 
{7    ,8  }, 
{6    ,8  }, 
{5    ,8  }, 
{4    ,8  }, 
{3    ,8  }, 
{2    ,8  }, 
{1    ,8  }, 
{0    ,8  }, 
{-1   ,8  }, 
{-2   ,8  }, 
{-3   ,8  }, 
{-4   ,8  }, 
{-5   ,8  }, 
{-6   ,8  }, 
{-7   ,8  }, 
{-8   ,8  }, 
{-8   ,7  }, 
{-8   ,6  }, 
{-8   ,5  }, 
{-8   ,4  }, 
{-8   ,3  }, 
{-8   ,2  }, 
{-8   ,1  }, 
{-8   ,0  }, 
{-8   ,-1 }, 
{-8   ,-2 }, 
{-8   ,-3 }, 
{-8   ,-4 }, 
{-8   ,-5 }, 
{-8   ,-6 }, 
{-8   ,-7 }, 
{-9   ,-9 }, 
{-8   ,-9 }, 
{-7   ,-9 }, 
{-6   ,-9 }, 
{-5   ,-9 }, 
{-4   ,-9 }, 
{-3   ,-9 }, 
{-2   ,-9 }, 
{-1   ,-9 }, 
{0    ,-9 }, 
{1    ,-9 }, 
{2    ,-9 }, 
{3    ,-9 }, 
{4    ,-9 }, 
{5    ,-9 }, 
{6    ,-9 }, 
{7    ,-9 }, 
{8    ,-9 }, 
{9    ,-9 }, 
{9    ,-8 }, 
{9    ,-7 }, 
{9    ,-6 }, 
{9    ,-5 }, 
{9    ,-4 }, 
{9    ,-3 }, 
{9    ,-2 }, 
{9    ,-1 }, 
{9    ,0  }, 
{9    ,1  }, 
{9    ,2  }, 
{9    ,3  }, 
{9    ,4  }, 
{9    ,5  }, 
{9    ,6  }, 
{9    ,7  }, 
{9    ,8  }, 
{9    ,9  }, 
{8    ,9  }, 
{7    ,9  }, 
{6    ,9  }, 
{5    ,9  }, 
{4    ,9  }, 
{3    ,9  }, 
{2    ,9  }, 
{1    ,9  }, 
{0    ,9  }, 
{-1   ,9  }, 
{-2   ,9  }, 
{-3   ,9  }, 
{-4   ,9  }, 
{-5   ,9  }, 
{-6   ,9  }, 
{-7   ,9  }, 
{-8   ,9  }, 
{-9   ,9  }, 
{-9   ,8  }, 
{-9   ,7  }, 
{-9   ,6  }, 
{-9   ,5  }, 
{-9   ,4  }, 
{-9   ,3  }, 
{-9   ,2  }, 
{-9   ,1  }, 
{-9   ,0  }, 
{-9   ,-1 }, 
{-9   ,-2 }, 
{-9   ,-3 }, 
{-9   ,-4 }, 
{-9   ,-5 }, 
{-9   ,-6 }, 
{-9   ,-7 }, 
{-9   ,-8 }, 
{-10  ,-10}, 
{-9   ,-10}, 
{-8   ,-10}, 
{-7   ,-10}, 
{-6   ,-10}, 
{-5   ,-10}, 
{-4   ,-10}, 
{-3   ,-10}, 
{-2   ,-10}, 
{-1   ,-10}, 
{0    ,-10}, 
{1    ,-10}, 
{2    ,-10}, 
{3    ,-10}, 
{4    ,-10}, 
{5    ,-10}, 
{6    ,-10}, 
{7    ,-10}, 
{8    ,-10}, 
{9    ,-10}, 
{10   ,-10}, 
{10   ,-9 }, 
{10   ,-8 }, 
{10   ,-7 }, 
{10   ,-6 }, 
{10   ,-5 }, 
{10   ,-4 }, 
{10   ,-3 }, 
{10   ,-2 }, 
{10   ,-1 }, 
{10   ,0  }, 
{10   ,1  }, 
{10   ,2  }, 
{10   ,3  }, 
{10   ,4  }, 
{10   ,5  }, 
{10   ,6  }, 
{10   ,7  }, 
{10   ,8  }, 
{10   ,9  }, 
{10   ,10 }, 
{9    ,10 }, 
{8    ,10 }, 
{7    ,10 }, 
{6    ,10 }, 
{5    ,10 }, 
{4    ,10 }, 
{3    ,10 }, 
{2    ,10 }, 
{1    ,10 }, 
{0    ,10 }, 
{-1   ,10 }, 
{-2   ,10 }, 
{-3   ,10 }, 
{-4   ,10 }, 
{-5   ,10 }, 
{-6   ,10 }, 
{-7   ,10 }, 
{-8   ,10 }, 
{-9   ,10 }, 
{-10  ,10 }, 
{-10  ,9  }, 
{-10  ,8  }, 
{-10  ,7  }, 
{-10  ,6  }, 
{-10  ,5  }, 
{-10  ,4  }, 
{-10  ,3  }, 
{-10  ,2  }, 
{-10  ,1  }, 
{-10  ,0  }, 
{-10  ,-1 }, 
{-10  ,-2 }, 
{-10  ,-3 }, 
{-10  ,-4 }, 
{-10  ,-5 }, 
{-10  ,-6 }, 
{-10  ,-7 }, 
{-10  ,-8 }, 
{-10  ,-9 }, 
{-11  ,-11}, 
{-10  ,-11}, 
{-9   ,-11}, 
{-8   ,-11}, 
{-7   ,-11}, 
{-6   ,-11}, 
{-5   ,-11}, 
{-4   ,-11}, 
{-3   ,-11}, 
{-2   ,-11}, 
{-1   ,-11}, 
{0    ,-11}, 
{1    ,-11}, 
{2    ,-11}, 
{3    ,-11}, 
{4    ,-11}, 
{5    ,-11}, 
{6    ,-11}, 
{7    ,-11}, 
{8    ,-11}, 
{9    ,-11}, 
{10   ,-11}, 
{11   ,-11}, 
{11   ,-10}, 
{11   ,-9 }, 
{11   ,-8 }, 
{11   ,-7 }, 
{11   ,-6 }, 
{11   ,-5 }, 
{11   ,-4 }, 
{11   ,-3 }, 
{11   ,-2 }, 
{11   ,-1 }, 
{11   ,0  }, 
{11   ,1  }, 
{11   ,2  }, 
{11   ,3  }, 
{11   ,4  }, 
{11   ,5  }, 
{11   ,6  }, 
{11   ,7  }, 
{11   ,8  }, 
{11   ,9  }, 
{11   ,10 }, 
{11   ,11 }, 
{10   ,11 }, 
{9    ,11 }, 
{8    ,11 }, 
{7    ,11 }, 
{6    ,11 }, 
{5    ,11 }, 
{4    ,11 }, 
{3    ,11 }, 
{2    ,11 }, 
{1    ,11 }, 
{0    ,11 }, 
{-1   ,11 }, 
{-2   ,11 }, 
{-3   ,11 }, 
{-4   ,11 }, 
{-5   ,11 }, 
{-6   ,11 }, 
{-7   ,11 }, 
{-8   ,11 }, 
{-9   ,11 }, 
{-10  ,11 }, 
{-11  ,11 }, 
{-11  ,10 }, 
{-11  ,9  }, 
{-11  ,8  }, 
{-11  ,7  }, 
{-11  ,6  }, 
{-11  ,5  }, 
{-11  ,4  }, 
{-11  ,3  }, 
{-11  ,2  }, 
{-11  ,1  }, 
{-11  ,0  }, 
{-11  ,-1 }, 
{-11  ,-2 }, 
{-11  ,-3 }, 
{-11  ,-4 }, 
{-11  ,-5 }, 
{-11  ,-6 }, 
{-11  ,-7 }, 
{-11  ,-8 }, 
{-11  ,-9 }, 
{-11  ,-10}, 
{-12  ,-12}, 
{-11  ,-12}, 
{-10  ,-12}, 
{-9   ,-12}, 
{-8   ,-12}, 
{-7   ,-12}, 
{-6   ,-12}, 
{-5   ,-12}, 
{-4   ,-12}, 
{-3   ,-12}, 
{-2   ,-12}, 
{-1   ,-12}, 
{0    ,-12}, 
{1    ,-12}, 
{2    ,-12}, 
{3    ,-12}, 
{4    ,-12}, 
{5    ,-12}, 
{6    ,-12}, 
{7    ,-12}, 
{8    ,-12}, 
{9    ,-12}, 
{10   ,-12}, 
{11   ,-12}, 
{12   ,-12}, 
{12   ,-11}, 
{12   ,-10}, 
{12   ,-9 }, 
{12   ,-8 }, 
{12   ,-7 }, 
{12   ,-6 }, 
{12   ,-5 }, 
{12   ,-4 }, 
{12   ,-3 }, 
{12   ,-2 }, 
{12   ,-1 }, 
{12   ,0  }, 
{12   ,1  }, 
{12   ,2  }, 
{12   ,3  }, 
{12   ,4  }, 
{12   ,5  }, 
{12   ,6  }, 
{12   ,7  }, 
{12   ,8  }, 
{12   ,9  }, 
{12   ,10 }, 
{12   ,11 }, 
{12   ,12 }, 
{11   ,12 }, 
{10   ,12 }, 
{9    ,12 }, 
{8    ,12 }, 
{7    ,12 }, 
{6    ,12 }, 
{5    ,12 }, 
{4    ,12 }, 
{3    ,12 }, 
{2    ,12 }, 
{1    ,12 }, 
{0    ,12 }, 
{-1   ,12 }, 
{-2   ,12 }, 
{-3   ,12 }, 
{-4   ,12 }, 
{-5   ,12 }, 
{-6   ,12 }, 
{-7   ,12 }, 
{-8   ,12 }, 
{-9   ,12 }, 
{-10  ,12 }, 
{-11  ,12 }, 
{-12  ,12 }, 
{-12  ,11 }, 
{-12  ,10 }, 
{-12  ,9  }, 
{-12  ,8  }, 
{-12  ,7  }, 
{-12  ,6  }, 
{-12  ,5  }, 
{-12  ,4  }, 
{-12  ,3  }, 
{-12  ,2  }, 
{-12  ,1  }, 
{-12  ,0  }, 
{-12  ,-1 }, 
{-12  ,-2 }, 
{-12  ,-3 }, 
{-12  ,-4 }, 
{-12  ,-5 }, 
{-12  ,-6 }, 
{-12  ,-7 }, 
{-12  ,-8 }, 
{-12  ,-9 }, 
{-12  ,-10}, 
{-12  ,-11}, 
{-13  ,-13}, 
{-12  ,-13}, 
{-11  ,-13}, 
{-10  ,-13}, 
{-9   ,-13}, 
{-8   ,-13}, 
{-7   ,-13}, 
{-6   ,-13}, 
{-5   ,-13}, 
{-4   ,-13}, 
{-3   ,-13}, 
{-2   ,-13}, 
{-1   ,-13}, 
{0    ,-13}, 
{1    ,-13}, 
{2    ,-13}, 
{3    ,-13}, 
{4    ,-13}, 
{5    ,-13}, 
{6    ,-13}, 
{7    ,-13}, 
{8    ,-13}, 
{9    ,-13}, 
{10   ,-13}, 
{11   ,-13}, 
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#endif
;


#endif /* _UTIL_ */

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