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pbmtoxwd.c
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C/C++ Source or Header
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1990-05-31
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160 lines
/* pbmtoxwd.c - read a portable bitmap and produce an X11 window dump
**
** 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"
#include "x11wd.h"
#ifdef SYSV
#include <string.h>
#define index strchr
#else /*SYSV*/
#include <strings.h>
#endif /*SYSV*/
main( argc, argv )
int argc;
char *argv[];
{
FILE *ifd;
register bit *bitrow, *bP;
int rows, cols, format, padright, row, col;
char name[100], *cp;
pm_progname = argv[0];
if ( argc > 2 )
pm_usage( "[pbmfile]" );
if ( argc == 2 )
{
ifd = pm_openr( argv[1] );
strcpy( name, argv[1] );
if ( strcmp( name, "-" ) == 0 )
strcpy( name, "noname" );
if ( ( cp = index( name, '.' ) ) != 0 )
*cp = '\0';
}
else
{
ifd = stdin;
strcpy( name, "noname" );
}
pbm_readpbminit( ifd, &cols, &rows, &format );
bitrow = pbm_allocrow( cols );
/* Compute padding to round cols up to the nearest multiple of 32. */
padright = ( ( cols + 31 ) / 32 ) * 32 - cols;
putinit( cols, rows, name );
for ( row = 0; row < rows; row++ )
{
pbm_readpbmrow( ifd, bitrow, cols, format );
for ( col = 0, bP = bitrow; col < cols; col++, bP++ )
putbit( *bP );
for ( col = 0; col < padright; col++ )
putbit( 0 );
}
if ( ifd != stdin )
fclose( ifd );
putrest( );
exit( 0 );
}
long item;
int bitsperitem, bitshift;
putinit( cols, rows, name )
int cols, rows;
char *name;
{
X11WDFileHeader h11;
X11XColor color;
h11.header_size = sizeof(h11) + (strlen(name) + 1) * sizeof(char);
h11.file_version = X11WD_FILE_VERSION;
h11.pixmap_format = ZPixmap;
h11.pixmap_depth = 1;
h11.pixmap_width = cols;
h11.pixmap_height = rows;
h11.xoffset = 0;
h11.byte_order = MSBFirst;
h11.bitmap_unit = 32;
h11.bitmap_bit_order = MSBFirst;
h11.bitmap_pad = 32;
h11.bits_per_pixel = 1;
h11.bytes_per_line = ( ( cols + 31 ) / 32 ) * 4;
h11.visual_class = StaticGray;
h11.red_mask = 0;
h11.green_mask = 0;
h11.blue_mask = 0;
h11.bits_per_rgb = 1;
h11.colormap_entries = 2;
h11.ncolors = 2;
h11.window_width = cols;
h11.window_height = rows;
h11.window_x = 0; /* arbitrary */
h11.window_y = 0; /* arbitrary */
h11.window_bdrwidth = 0;
fwrite( &h11, sizeof(h11), 1, stdout );
fwrite( name, sizeof(char), strlen(name) + 1, stdout );
color.pixel = 0;
color.red = 65535;
color.green = 65535;
color.blue = 65535;
color.flags = 7;
color.pad = 0;
fwrite( &color, sizeof(color), 1, stdout );
color.pixel = 1;
color.red = 0;
color.green = 0;
color.blue = 0;
fwrite( &color, sizeof(color), 1, stdout );
item = 0;
bitsperitem = 0;
bitshift = 31;
}
putbit( b )
bit b;
{
if ( bitsperitem == 32 )
putitem( );
bitsperitem++;
if ( b == PBM_BLACK )
item += 1 << bitshift;
bitshift--;
}
putrest( )
{
if ( bitsperitem > 0 )
putitem( );
}
putitem( )
{
fwrite( &item, sizeof(item), 1, stdout );
item = 0;
bitsperitem = 0;
bitshift = 31;
}