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netpbm_src.lzh
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PNM
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pnmfile.c
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1996-11-18
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/* pnmfile.c - describe a portable anymap
**
** Copyright (C) 1991 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 "pnm.h"
static void describe_one ARGS(( char* name, FILE* file ));
int
main( argc, argv )
int argc;
char* argv[];
{
int argn;
FILE* ifp;
pnm_init( &argc, argv );
if ( argc == 1 )
describe_one( "stdin", stdin );
else
{
for ( argn = 1; argn < argc; ++argn )
{
ifp = pm_openr( argv[argn] );
describe_one( argv[argn], ifp );
pm_close( ifp );
}
}
exit( 0 );
}
static void
describe_one( name, file )
char* name;
FILE* file;
{
xelval maxval;
int rows, cols, format;
pnm_readpnminit( file, &cols, &rows, &maxval, &format );
printf( "%s:\t", name );
switch ( format )
{
case PBM_FORMAT:
printf( "PBM plain, %d by %d\n", cols, rows );
break;
case RPBM_FORMAT:
printf( "PBM raw, %d by %d\n", cols, rows );
break;
case PGM_FORMAT:
printf( "PGM plain, %d by %d maxval %d\n", cols, rows, maxval );
break;
case RPGM_FORMAT:
printf( "PGM raw, %d by %d maxval %d\n", cols, rows, maxval );
break;
case PPM_FORMAT:
printf( "PPM plain, %d by %d maxval %d\n", cols, rows, maxval );
break;
case RPPM_FORMAT:
printf( "PPM raw, %d by %d maxval %d\n", cols, rows, maxval );
break;
}
}