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/* pbmtozinc.c - read a portable bitmap and produce an bitmap file
** in the format used by the Zinc Interface Library (v1.0)
** November 1990.
**
** Author: James Darrell McCauley
** Department of Agricultural Engineering
** Texas A&M University
** College Station, Texas 77843-2117 USA
**
** Copyright (C) 1988 by James Darrell McCauley (jdm5548@diamond.tamu.edu)
** and Jef Poskanzer.
**
** Permission to use, copy, modify, and distribute this software and its
** documentation for any purpose and without fee is hereby granted, provided
** that the above copyright notice appear in all copies and that both that
** copyright notice and this permission notice appear in supporting
** documentation. This software is provided "as is" without express or
** implied warranty.
*/
#include <stdio.h>
#include <string.h>
#include "nstring.h"
#include "pbm.h"
int
main(int argc, char * argv[]) {
FILE* ifp;
bit* bitrow;
register bit* bP;
int rows, cols, format, padright, row;
register int col;
char name[100];
char* cp;
int itemsperline;
register int bitsperitem;
register int item;
int firstitem;
const char * const hexchar = "084c2a6e195d3b7f";
pbm_init( &argc, argv );
if ( argc > 2 )
pm_usage( "[pbmfile]" );
if ( argc == 2 )
{
ifp = pm_openr( argv[1] );
strcpy( name, argv[1] );
if ( streq( name, "-" ) )
strcpy( name, "noname" );
if ( ( cp = strchr( name, '.' ) ) != 0 )
*cp = '\0';
}
else
{
ifp = stdin;
strcpy( name, "noname" );
}
pbm_readpbminit( ifp, &cols, &rows, &format );
bitrow = pbm_allocrow( cols );
/* Compute padding to round cols up to the nearest multiple of 16. */
padright = ( ( cols + 15 ) / 16 ) * 16 - cols;
printf( "USHORT %s[] = {\n",name);
printf( " %d\n", cols );
printf( " %d\n", rows );
itemsperline = 0;
bitsperitem = 0;
item = 0;
firstitem = 1;
#define PUTITEM \
{ \
if ( firstitem ) \
firstitem = 0; \
else \
putchar( ',' ); \
if ( itemsperline == 11 ) \
{ \
putchar( '\n' ); \
itemsperline = 0; \
} \
if ( itemsperline == 0 ) \
putchar( ' ' ); \
++itemsperline; \
putchar('0'); \
putchar('x'); \
putchar(hexchar[item & 15]); \
putchar(hexchar[(item >> 4) & 15]); \
putchar(hexchar[(item >> 8) & 15]); \
putchar(hexchar[item >> 12]); \
bitsperitem = 0; \
item = 0; \
}
#define PUTBIT(b) \
{ \
if ( bitsperitem == 16 ) \
PUTITEM; \
if ( (b) == PBM_BLACK ) \
item += 1 << bitsperitem; \
++bitsperitem; \
}
for ( row = 0; row < rows; ++row )
{
pbm_readpbmrow( ifp, bitrow, cols, format );
for ( col = 0, bP = bitrow; col < cols; ++col, ++bP )
PUTBIT( *bP );
for ( col = 0; col < padright; ++col )
PUTBIT( 0 );
}
pm_close( ifp );
if ( bitsperitem > 0 )
PUTITEM;
printf( "};\n" );
return 0;
}
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