diff options
Diffstat (limited to 'converter/pbm/pbmtoptx.c')
-rw-r--r-- | converter/pbm/pbmtoptx.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/converter/pbm/pbmtoptx.c b/converter/pbm/pbmtoptx.c new file mode 100644 index 00000000..5031efcb --- /dev/null +++ b/converter/pbm/pbmtoptx.c @@ -0,0 +1,101 @@ +/* pbmtoptx.c - read a portable bitmap and produce a Printronix printer 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 "pbm.h" + +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; + register bit *bitrow, *bP; + int rows, cols, format, row, col; + const char * const usage = "[pbmfile]"; + + pbm_init( &argc, argv ); + + if ( argc > 2 ) + pm_usage( usage ); + + if ( argc == 2 ) + ifp = pm_openr( argv[1] ); + else + ifp = stdin; + + pbm_readpbminit( ifp, &cols, &rows, &format ); + bitrow = pbm_allocrow( cols ); + + putinit( ); + for ( row = 0; row < rows; row++ ) + { + pbm_readpbmrow( ifp, bitrow, cols, format ); + for ( col = 0, bP = bitrow; col < cols; col++, bP++ ) + putbit( *bP ); + putrest( ); + putchar( 5 ); + putchar( '\n' ); + } + + pm_close( ifp ); + + exit( 0 ); + } + +static char item; +static int bitsperitem, bitshift; + +static void +putinit( ) + { + bitsperitem = 0; + item = 64; + bitshift = 0; + } + +#if __STDC__ +static void +putbit( bit b ) +#else /*__STDC__*/ +static void +putbit( b ) + bit b; +#endif /*__STDC__*/ + { + if ( bitsperitem == 6 ) + putitem( ); + if ( b == PBM_BLACK ) + item += 1 << bitshift; + bitsperitem++; + bitshift++; + } + +static void +putrest( ) + { + if ( bitsperitem > 0 ) + putitem( ); + } + +static void +putitem( ) + { + putchar( item ); + bitsperitem = 0; + item = 64; + bitshift = 0; + } |