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#!/usr/bin/perl |
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# by peterm@langmuir.eecs.berkeley.edu |
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# This program takes a .xpm as input and splits into |
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# 24x24 chunks. |
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$base_name=$ARGV[0]; |
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print "splitting ", $base_name, "\n"; |
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open(XPM_FILE,$ARGV[0]) || die "Usage: splitter.pl <filename>"; |
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# get the header stuff from the original file. |
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while ( (@tmp=split(/[ \s]+/,$headline=<XPM_FILE>))[0] eq "/*") { |
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}; |
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@name=split(/\./,$ARGV[0]); |
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#$name1 = (@tmp=split(/\*/,$headline))[1]; |
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#$name2 = (@tmp=split(/[=\[\{]/,$name1))[0]; |
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print "name of the bitmap is:", $name[0], "\n"; |
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#get the dimensions/parameters of the original xpm file. |
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while ( (@line=split(/[ \s"]+/,<XPM_FILE>))[0] eq "/*") { |
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}; |
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$height = $line[2]; |
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$ncolors = $line[3]; |
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$width = $line[1]; |
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$chars_per_pixel= $line[4]; |
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print "width = ",$width, " ", "height =", $height, " number colors =", $ncolors, " chars per pixel =", $chars_per_pixel, "\n"; |
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if ( $height % 24 != 0 || $width % 24 != 0 ) { |
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die "Use some other program to make the dimensions of this xpm divisible by 24 first.\n"; |
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} |
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$i_color=0; # index for getting lines with colors |
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while($i_color < $ncolors) { |
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$tmp= <XPM_FILE>; #get one line from the xpm file |
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if(substr($tmp,0,1) eq '"') { |
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@colors[$i_color] = $tmp; |
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$i_color++; |
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} |
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} |
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#read in the rest of the bitmap |
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$n=0; |
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while( $n < $height ) { |
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$tmp = <XPM_FILE>; |
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if(substr($tmp,0,1) eq '"') { |
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@picture[$n] = $tmp; |
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$n++; |
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} |
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} |
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#@picture = <XPM_FILE>; |
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$n_rows = $height / 24; |
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$n_cols = $width / 24; |
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# maximum supported dimension has 61 squares |
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$indexes = "123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"; |
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# Now the actual work of splitting the xpm file into many little files. |
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print $n_rows," ",$n_cols,"\n"; |
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for( $j = 0; $j < $n_rows; $j++) { |
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for( $i = 0; $i < $n_cols; $i++ ) { |
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#choose a filename |
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$outname = join('',$name[0],"_",substr($indexes,$i + $j*$n_cols,1)); |
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$out_fname = join('',$name[0],".",substr($indexes,$i + $j*$n_cols,1),"11.xpm"); |
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print $outname," ",$out_fname,"\n"; |
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$outname2= join('',$outname,"_xpm"); |
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#open the dest file |
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open(OUTFILE,">$out_fname"); |
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# Write the header lines |
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print OUTFILE "/* XPM */\n"; |
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print OUTFILE join(' ',"static","char","*",$outname2, "[] = {\n"); |
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# Write the dimension line |
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print OUTFILE join(' ','"',"24","24",$ncolors,$chars_per_pixel,'"',",\n"); |
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# Write the colors |
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for($i_color=0;$i_color < $ncolors; $i_color++) { |
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print OUTFILE $colors[$i_color]; |
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}; |
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# Write the proper bitmaps! |
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for($k=0;$k<23;$k++) { |
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print OUTFILE join('','"',substr($picture[$j*24+$k],$i*24+1,24*$chars_per_pixel),'"',",\n"); |
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} |
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print OUTFILE join('','"',substr($picture[$j*24+$k],$i*24+1,24*$chars_per_pixel),'"',"};\n"); |
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} |
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} |
