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- /* 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;
- bit **bits;
- int rows, cols, rucols, padleft, padright, row, col;
- char ch;
-
- 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 );
- }
- }
- else
- ifd = stdin;
-
- bits = pbm_readpbm( ifd, &cols, &rows );
-
- if ( ifd != stdin )
- fclose( ifd );
-
- /* Round cols up to the nearest multiple of 16. */
- rucols = ( cols + 15 ) / 16;
- rucols = rucols * 16;
- padleft = ( rucols - cols ) / 2;
- padright = rucols - cols - padleft;
-
- printf( "/* Format_version=1, Width=%d, Height=%d", rucols, rows );
- printf( ", Depth=1, Valid_bits_per_item=16\n */\n" );
-
- putinit( );
- for ( row = 0; row < rows; row++ )
- {
- for ( col = 0; col < padleft; col++ )
- putbit( 0 );
- 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 = 15;
- firstitem = 1;
- }
-
- putbit( b )
- bit b;
- {
- if ( bitsperitem == 16 )
- putitem( );
- bitsperitem++;
- if ( b )
- 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;
- }
-