%!PS-Adobe-3.0 EPSF-3.0
%%Title: folder.ps
%%Creator: Jan Nijtmans
%%BoundingBox: 0 615 16 627
%%Pages: 1
%%DocumentFonts:
%%EndComments
%%EndProlog
%%Page: 1 1
% remember original state
/origstate save def
% build a temporary dictionary
20 dict begin
% define space for color conversions
/grays 16 string def  % space for gray scale line
/npixls 0 def
/rgbindx 0 def
% lower left corner
0 615 translate
% size of image (on paper, in 1/72inch coords)
15.98400 12.02400 scale
% define 'colorimage' if it isn't defined
%   ('colortogray' and 'mergeprocs' come from xwd2ps
%     via xgrab)
/colorimage where   % do we know about 'colorimage'?
  { pop }           % yes: pop off the 'dict' returned
  {                 % no:  define one
    /colortogray {  % define an RGB->I function
      /rgbdata exch store    % call input 'rgbdata'
      rgbdata length 3 idiv
      /npixls exch store
      /rgbindx 0 store
      0 1 npixls 1 sub {
        grays exch
        rgbdata rgbindx       get 20 mul    % Red
        rgbdata rgbindx 1 add get 32 mul    % Green
        rgbdata rgbindx 2 add get 12 mul    % Blue
        add add 64 idiv      % I = .5G + .31R + .18B
        put
        /rgbindx rgbindx 3 add store
      } for
      grays 0 npixls getinterval
    } bind def

    % Utility procedure for colorimage operator.
    % This procedure takes two procedures off the
    % stack and merges them into a single procedure.

    /mergeprocs { % def
      dup length
      3 -1 roll
      dup
      length
      dup
      5 1 roll
      3 -1 roll
      add
      array cvx
      dup
      3 -1 roll
      0 exch
      putinterval
      dup
      4 2 roll
      putinterval
    } bind def

    /colorimage { % def
      pop pop     % remove 'false 3' operands
      {colortogray} mergeprocs
      image
    } bind def
  } ifelse          % end of 'false' case
% define the colormap
/cmap 9 string def
% load up the colormap
currentfile cmap readhexstring
ffffff 000000 f0ff80 
pop pop   % lose return values from readhexstring
% rlecmapimage expects to have 'w h bits matrix' on stack
/rlecmapimage {
  /buffer 1 string def
  /rgbval 3 string def
  /block  384 string def

  % proc to read a block from file, and return RGB data
  { currentfile buffer readhexstring pop
    /bcount exch 0 get store
    bcount 128 ge
    {  % it's a non-run block
      0 1 bcount 128 sub
      { currentfile buffer readhexstring pop pop

        % look up value in color map
        /rgbval cmap buffer 0 get 3 mul 3 getinterval store

        % and put it in position i*3 in block
        block exch 3 mul rgbval putinterval
      } for
      block  0  bcount 127 sub 3 mul  getinterval
    }

    { % else it's a run block
      currentfile buffer readhexstring pop pop

      % look up value in colormap
      /rgbval cmap buffer 0 get 3 mul 3 getinterval store

      0 1 bcount { block exch 3 mul rgbval putinterval } for

      block 0 bcount 1 add 3 mul getinterval
    } ifelse
  } % end of proc
  false 3 colorimage
} bind def
16 12 8			% dimensions of data
[16 0 0 -12 0 12]		% mapping matrix
rlecmapimage
020003010800
010081010202028101000600
8200010204028101000500
0c010200
81010209028101000100
81010209028101000100
81010209028101000100
81010209028101000100
81010209028101000100
81010209028101000100
81010209028101000100
0c010200
%
showpage
% stop using temporary dictionary
end
% restore original state
origstate restore
%%Trailer