Create Subversion repository

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@1 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 152 insertions, 0 deletions

diff --git a/converter/pgm/bioradtopgm.c b/converter/pgm/bioradtopgm.c
new file mode 100644
index 00000000..e0bc3584
--- /dev/null
+++ b/converter/pgm/bioradtopgm.c
@@ -0,0 +1,152 @@
+/* bioradtopgm.c - convert a Biorad confocal image into a portable graymap
+**
+** Copyright (C) 1993 by Oliver Trepte, oliver@fysik4.kth.se
+**
+** Derived from the pbmplus package,
+** Copyright (C) 1989 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 <ctype.h>
+
+#include "pgm.h"
+#include "nstring.h"
+
+#define BYTE unsigned char
+#define BIORAD_HEADER_LENGTH 76
+#define BYTE_TO_WORD(lsb,msb) (((BYTE) lsb) + (((BYTE) msb) << 8))
+
+int
+main( argc, argv )
+    int argc;
+    char* argv[];
+    {
+    FILE* ifp;
+    gray* grayrow;
+    register gray* gP;
+    int argn, row, i;
+    register int col, val, val2;
+    int rows=0, cols=0, image_num= -1, image_count, byte_word, check_word;
+    int maxval;
+    BYTE buf[BIORAD_HEADER_LENGTH];
+    const char* const usage = "[-image#] [Bioradfile]";
+
+
+    pgm_init( &argc, argv );
+
+    argn = 1;
+
+    while ( argn < argc && argv[argn][0] == '-' && argv[argn][1] != '\0' )
+    {
+	if ( ISDIGIT( argv[argn][1] ))
+	{
+	    image_num = atoi( (argv[argn]+1) );
+	}
+	else
+	    pm_usage( usage );
+	++argn;
+    }
+
+    if ( argn < argc )
+	{
+	ifp = pm_openr( argv[argn] );
+	++argn;
+	}
+    else
+	ifp = stdin;
+
+    if ( argn != argc )
+	pm_usage( usage );
+
+    for ( i = 0; i < BIORAD_HEADER_LENGTH; ++i )
+    {
+	val = getc( ifp );
+	if ( val == EOF )
+	    pm_error( "EOF / read error" );
+	buf[ i ] = val;
+    }
+
+    cols = BYTE_TO_WORD(buf[0], buf[1]);
+    rows = BYTE_TO_WORD(buf[2], buf[3]);
+    image_count = BYTE_TO_WORD(buf[4], buf[5]);
+    byte_word = BYTE_TO_WORD(buf[14], buf[15]);
+    check_word = BYTE_TO_WORD(buf[54], buf[55]);
+
+    if ( check_word != 12345 )
+	pm_error( "Not a Biorad file" );
+
+    if ( cols <= 0 )
+	pm_error( "Strange image size, cols = %d", cols);
+
+    if ( rows <= 0 )
+	pm_error( "Strange image size, rows = %d", rows);
+
+    if ( image_count <= 0 )
+	pm_error( "Number of images in file is %d", image_count);
+
+    if ( byte_word )
+	maxval = 255;
+    else
+    {
+	maxval = 65535;   /* Perhaps this should be something else */
+
+    }
+
+    pm_message( "Image size: %d cols, %d rows", cols, rows);
+    pm_message( "%s",
+	       (byte_word) ? "Byte image (8 bits)" : "Word image (16 bits)");
+
+    if ( image_num < 0 )
+	pm_message( "Input contains %d image%c",
+		   image_count, (image_count > 1) ? 's' : '\0');
+    else
+    {
+	if ( image_num >= image_count )
+	    pm_error( "Cannot extract image %d, input contains only %d image%s",
+		     image_num, image_count, (image_count > 1) ? "s" : "" );
+	for ( i = (byte_word) ? image_num : image_num*2 ; i > 0 ; --i ) {
+	    for ( row = 0; row < rows; ++row)
+		for ( col = 0; col < cols; ++col )
+		{
+		    val = getc( ifp );
+		    if ( val == EOF ) {
+			pm_error( "EOF / read error" );
+		    }
+		}
+	}
+
+	pgm_writepgminit( stdout, cols, rows, (gray) maxval, 0 );
+	grayrow = pgm_allocrow( cols );
+
+	for ( row = 0; row < rows; ++row)
+	{
+	    for ( col = 0, gP = grayrow; col < cols; ++col )
+	    {
+		val = getc( ifp );
+		if ( val == EOF )
+		    pm_error( "EOF / read error" );
+		if (byte_word)
+		    *gP++ = val;
+		else
+		{
+		    val2 = getc( ifp );
+		    if ( val2 == EOF )
+			pm_error( "EOF / read error" );
+		    *gP++ = BYTE_TO_WORD(val, val2);
+		}
+	    }
+	    pgm_writepgmrow( stdout, grayrow, cols, (gray) maxval, 0 );
+	}
+
+	pm_close( ifp );
+	pm_close( stdout );
+
+    }
+    exit( 0 );
+}