Beefy Boxes and Bandwidth Generously Provided by pair Networks
Keep It Simple, Stupid
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??
#!/usr/bin/perl =head1 NAME pnt2bmp - Converts "Tandy Personal Deskmate P(ai)NT files" to BMP =head1 SYNOPSIS B<pnt2bmp.pl> I<file.pnt> =head1 DESCRIPTION Converts "Tandy 1000 Personal Deskmate P(ai)NT files" to BMP. AFAIK, t +hey are always 312x176. Did this without docs, so may not work on all +. Pixel data is stored in byte pairs, the first byte, two 4-bit pixels, +and the second, a repeat count of the two pixel values http://www.leeland.net/pnt2bmp.html =head1 AUTHOR Lee Pumphret =cut use strict; use warnings; my @tga_palette = map { pack( "CCC", reverse @$_ ) } ( [ 0x00, 0x00, 0x00 ], # Black [ 0x00, 0x00, 0x99 ], # Dark Blue [ 0x00, 0x99, 0x00 ], # Dark Green [ 0x33, 0x99, 0x99 ], # Dark Cyan [ 0x99, 0x00, 0x00 ], # Dark Red [ 0xCC, 0x33, 0xCC ], # Dark Magenta [ 0xCC, 0x66, 0x00 ], # Orange [ 0x99, 0x99, 0x99 ], # Light Gray [ 0x99, 0x66, 0x33 ], # Dark Gray [ 0x66, 0x33, 0xFF ], # Light Blue [ 0x33, 0xCC, 0x00 ], # Light Green [ 0x66, 0xCC, 0xCC ], # Light Cyan [ 0xFF, 0xCC, 0xCC ], # Light Red [ 0xFF, 0x99, 0xFF ], # Light Magenta [ 0xFF, 0xFF, 0x00 ], # Yellow [ 0xFF, 0xFF, 0xFF ], #White ); my @files = glob( shift @ARGV ); foreach my $file (@files) { next and warn "Mismatched extension in filename [$file]... skippin +g\n" unless $file =~ /\.pnt$/i; print "processing $file...\n"; open( IN, "<$file" ) or die "Couldn't open $file :$!"; binmode(IN); my @imdata; my $buffer; my $PNT_HEADER_SIZE = 22; # .pnt file header size (I think) # Read the header ( read( IN, $buffer, $PNT_HEADER_SIZE ) == $PNT_HEADER_SIZE ) or die "Error reading header data!"; warn unpack( "h*", $buffer ) . " $file\n"; my ( $ident, $other ) = unpack( "A4", $buffer ); unless ( $ident =~ m/PNT$/ ) { die "Doesn't look like an PNT file! [$ident]"; } my $count; while ( read( IN, $buffer, 2 ) ) { my ( $pindex, $run ) = unpack( "CC", $buffer ); my $p1 = ( $pindex >> 4 ) & 0x0f; my $p2 = $pindex & 0x0f; push @imdata, ( ( $tga_palette[$p1], $tga_palette[$p2] ) x ($r +un) ); } my $width = 312; unless ( @imdata % $width == 0 ) { # If short, pad it out, but probably damaged. warn "Padding $file, may be damaged\n"; push @imdata, ( $tga_palette[0] ) x ( $width - ( @imdata % $width ) ); } my ( $x, $y ) = ( $width, @imdata / $width ); # Write out the bmp file ( my $outfile = $file ) =~ s/pnt$/bmp/i; my $written = $#imdata; open( OUT, ">$outfile" ) or die "Couldn't open output!"; binmode(OUT); # BMP 3.1 Header print OUT pack "C C l a a a a l l l l s s l l l l l l", 0x42, 0x4D +, 54 + ( $x * 3 ) * $y, 'l', 'e', 'e', 'p', 54, 0x28, $x, $y, 1, 2 +4, 0, 0, 0, 0, 0, 0; # Write out the image data, bottom to top while ( $written > 0 ) { print OUT @imdata[ $written - ( $x - 1 ) .. $written ]; $written -= $x; } close OUT; }

In reply to pnt2bmp by shotgunefx

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others taking refuge in the Monastery: (12)
    As of 2015-07-06 13:29 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (74 votes), past polls