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Usenet 1994 October
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usenetsourcesnewsgroupsinfomagicoctober1994disk2.iso
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misc
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volume2
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pbm
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Part3
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pbmtoxbm.c
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C/C++ Source or Header
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1991-08-07
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135 lines
/* pbmtoxbm.c - read a portable bitmap and produce an X11 bitmap file
**
** Copyright (C) 1988 by 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>
#ifdef OS_SYSV
#include <string.h>
#else OS_SYSV
#include <strings.h>
#endif OS_SYSV
#include "pbm.h"
main( argc, argv )
int argc;
char *argv[];
{
FILE *ifd;
bit **bits;
int rows, cols, rucols, padright, row, col;
char name[100], *cp;
if ( argc > 2 )
{
fprintf( stderr, "usage: %s [pbmfile]\n", argv[0] );
exit( 1 );
}
if ( argc == 2 )
{
ifd = fopen( argv[1], "r" );
if ( ifd == NULL )
{
fprintf( stderr, "%s: can't open.\n", argv[1] );
exit( 1 );
}
strcpy( name, argv[1] );
#ifdef OS_SYSV
if ( ( cp = strchr( name, '.' ) ) != 0 )
#else OS_SYSV
if ( ( cp = index( name, '.' ) ) != 0 )
#endif OS_SYSV
*cp = '\0';
}
else
{
ifd = stdin;
strcpy( name, "noname" );
}
bits = pbm_readpbm( ifd, &cols, &rows );
if ( ifd != stdin )
fclose( ifd );
/* Round cols up to the nearest multiple of 8. */
rucols = ( cols + 7 ) / 8;
rucols = rucols * 8;
padright = rucols - cols;
printf( "#define %s_width %d\n", name, cols );
printf( "#define %s_height %d\n", name, rows );
printf( "static char %s_bits[] = {\n", name );
putinit( );
for ( row = 0; row < rows; row++ )
{
for ( col = 0; col < cols; col++ )
putbit( bits[row][col] );
for ( col = 0; col < padright; col++ )
putbit( 0 );
}
putrest( );
exit( 0 );
}
int item, bitsperitem, bitshift, itemsperline, firstitem;
putinit( )
{
itemsperline = 0;
bitsperitem = 0;
item = 0;
bitshift = 0;
firstitem = 1;
}
putbit( b )
bit b;
{
if ( bitsperitem == 8 )
putitem( );
bitsperitem++;
if ( b )
item += 1 << bitshift;
bitshift++;
}
putrest( )
{
if ( bitsperitem > 0 )
putitem( );
printf( "};\n" );
}
putitem( )
{
if ( firstitem )
firstitem = 0;
else
printf( "," );
if ( itemsperline == 15 )
{
putchar( '\n' );
itemsperline = 0;
}
if ( itemsperline == 0 )
printf( " " );
itemsperline++;
printf( "0x%02x", item );
bitsperitem = 0;
item = 0;
bitshift = 0;
}