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pbmtoicon.c
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C/C++ Source or Header
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1980-12-04
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2KB
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113 lines
/* pbmtoicon.c - read a portable bitmap and produce a Sun icon 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>
#include "pbm.h"
main( argc, argv )
int argc;
char *argv[];
{
FILE *ifd;
register bit *bitrow, *bP;
int rows, cols, format, pad, padleft, padright, row, col;
pm_progname = argv[0];
if ( argc > 2 )
pm_usage( "[pbmfile]" );
if ( argc == 2 )
ifd = pm_openr( argv[1] );
else
ifd = stdin;
pbm_readpbminit( ifd, &cols, &rows, &format );
bitrow = pbm_allocrow( cols );
/* Round cols up to the nearest multiple of 16. */
pad = ( ( cols + 15 ) / 16 ) * 16 - cols;
padleft = pad / 2;
padright = pad - padleft;
printf( "/* Format_version=1, Width=%d, Height=%d", cols + pad, rows );
printf( ", Depth=1, Valid_bits_per_item=16\n */\n" );
putinit( );
for ( row = 0; row < rows; row++ )
{
pbm_readpbmrow( ifd, bitrow, cols, format );
for ( col = 0; col < padleft; col++ )
putbit( 0 );
for ( col = 0, bP = bitrow; col < cols; col++, bP++ )
putbit( *bP );
for ( col = 0; col < padright; col++ )
putbit( 0 );
}
pm_close( ifd );
putrest( );
exit( 0 );
}
int item, bitsperitem, bitshift, itemsperline, firstitem;
putinit( )
{
itemsperline = 0;
bitsperitem = 0;
item = 0;
bitshift = 15;
firstitem = 1;
}
putbit( b )
bit b;
{
if ( bitsperitem == 16 )
putitem( );
bitsperitem++;
if ( b == PBM_BLACK )
item += 1 << bitshift;
bitshift--;
}
putrest( )
{
if ( bitsperitem > 0 )
putitem( );
putchar( '\n' );
}
putitem( )
{
if ( firstitem )
firstitem = 0;
else
putchar( ',' );
if ( itemsperline == 8 )
{
putchar( '\n' );
itemsperline = 0;
}
if ( itemsperline == 0 )
putchar( '\t' );
itemsperline++;
printf( "0x%04x", item );
bitsperitem = 0;
item = 0;
bitshift = 15;
}