diff options
Diffstat (limited to 'system/doc/efficiency_guide/digger.ps')
| -rw-r--r-- | system/doc/efficiency_guide/digger.ps | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/system/doc/efficiency_guide/digger.ps b/system/doc/efficiency_guide/digger.ps new file mode 100644 index 0000000000..07ac8e2fa9 --- /dev/null +++ b/system/doc/efficiency_guide/digger.ps @@ -0,0 +1,197 @@ +%!PS-Adobe-2.0 EPSF-2.0 +%%Title: /clearcase/otp/system/doc/efficiency_guide/digger.ps +%%Creator: XV Version 3.10a Rev: 12/29/94 - by John Bradley +%%BoundingBox: 290 380 322 412 +%%Pages: 1 +%%DocumentFonts: +%%EndComments +%%EndProlog + +%%Page: 1 1 + +% remember original state +/origstate save def + +% build a temporary dictionary +20 dict begin + +% define string to hold a scanline's worth of data +/pix 96 string def + +% define space for color conversions +/grays 32 string def % space for gray scale line +/npixls 0 def +/rgbindx 0 def + +% lower left corner +290 380 translate + +% size of image (on paper, in 1/72inch coords) +31.96800 31.96800 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 + + + +32 32 8 % dimensions of data +[32 0 0 -32 0 32] % mapping matrix +{currentfile pix readhexstring pop} +false 3 colorimage + +000000000000000000000000000000000000000000000000000000000000000000000000 +000000000000000000000000000000000000000000000000000000000000000000000000 +000000000000000000000000000000000000000000000000 +000000ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00 +ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00 +ffff00ffff00ffff00ffff00ffff00ffff00ffff00000000 +000000ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00 +ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00 +ffff00ffff00ffff00ffff00ffff00ffff00ffff00000000 +000000ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00 +ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00ffff00 +ffff00ffff00ffff00ffff00ffff00ffff00ffff00000000 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