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- /* pbmtolj.c - read a portable bitmap and produce a LaserJet bitmap file
- **
- ** based on pbmtops.c
- **
- ** Michael Haberler HP Vienna mah@hpuviea.uucp
- ** mcvax!tuvie!mah
- ** misfeatures:
- ** no positioning
- **
- ** Bug fix Dec 12, 1988 :
- ** lines in putbit() reshuffled
- ** now runs OK on HP-UX 6.0 with X10R4 and HP Laserjet II
- ** Bo Thide', Swedish Institute of Space Physics, Uppsala <bt@irfu.se>
- **
- ** Copyright (C) 1988 by Jef Poskanzer and Michael Haberler.
- **
- ** 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 "pbm.h"
-
- static int dpi = 75;
-
- static void putinit ARGS(( void ));
- static void putbit ARGS(( bit b ));
- static void putrest ARGS(( void ));
- static void putitem ARGS(( void ));
-
- int
- main( argc, argv )
- int argc;
- char* argv[];
- {
- FILE* ifp;
- bit* bitrow;
- register bit* bP;
- int argn, rows, cols, format, rucols, padright, row;
- register int nzcol, col;
- char* usage = "[-resolution N] [pbmfile]\n\tresolution = [75|100|150|300] (dpi)";
-
-
- pbm_init( &argc, argv );
-
- argn = 1;
-
- /* Check for flags. */
- if ( argn < argc && argv[argn][0] == '-' && argv[argn][1] != '\0' )
- {
- if ( pm_keymatch( argv[argn], "-resolution", 2 ) )
- {
- ++argn;
- if ( argn == argc || sscanf( argv[argn], "%d", &dpi ) != 1 )
- pm_usage( usage );
- }
- else
- pm_usage( usage );
- ++argn;
- }
-
- if ( argn != argc )
- {
- ifp = pm_openr( argv[argn] );
- ++argn;
- }
- else
- ifp = stdin;
-
- if ( argn != argc )
- pm_usage( usage );
-
- pbm_readpbminit( ifp, &cols, &rows, &format );
- bitrow = pbm_allocrow( cols );
-
- putinit( );
- for ( row = 0; row < rows; ++row )
- {
- pbm_readpbmrow( ifp, bitrow, cols, format );
-
- /* Find rightmost black pixel. */
- for ( nzcol = cols - 1; nzcol >= 0 && bitrow[nzcol] == PBM_WHITE; --nzcol )
- continue;
-
- /* Round up to the nearest multiple of 8. */
- rucols = ( nzcol + 8 ) / 8;
- rucols = rucols * 8;
- padright = rucols - (nzcol + 1);
-
- /* Transfer raster graphics */
- printf("\033*b%dW",rucols/8);
- for ( col = 0, bP = bitrow; col <= nzcol; ++col, ++bP )
- putbit( *bP );
- for ( col = 0; col < padright; ++col )
- putbit( 0 );
- }
-
- pm_close( ifp );
-
- putrest( );
-
- exit( 0 );
- }
-
- static int item, bitsperitem, bitshift, itemsperline, firstitem;
-
- static void
- putinit( )
- {
- /* Printer reset. */
- printf("\033E");
-
- /* Ensure top margin is zero */
- printf("\033&l0E");
-
- /* Set raster graphics resolution */
- printf("\033*t%dR",dpi);
-
- /* Start raster graphics, relative adressing */
- printf("\033*r1A");
-
- itemsperline = 0;
- bitsperitem = 1;
- item = 0;
- bitshift = 7;
- firstitem = 1;
- }
-
- #if __STDC__
- static void
- putbit( bit b )
- #else /*__STDC__*/
- static void
- putbit( b )
- bit b;
- #endif /*__STDC__*/
- {
- if ( b == PBM_BLACK )
- item += 1 << bitshift;
- bitshift--;
- if ( bitsperitem == 8 ) {
- putitem( );
- bitshift = 7;
- }
- bitsperitem++;
- }
-
- static void
- putrest( )
- {
- if ( bitsperitem > 1 )
- putitem( );
-
- /* end raster graphics */
- printf( "\033*rB" );
-
- /* Printer reset. */
- printf("\033E");
- }
-
- static void
- putitem( )
- {
- putchar( item );
- bitsperitem = 0;
- item = 0;
- }
-