ref: 784a9598880c119d8701db059bae956eacd5db72
dir: /sys/lib/postscript/prologues/postp9bit.ps/
% % Version 3.3 prologue for plan9 bitmap files. % /#copies 1 store /aspectratio 1 def /formsperpage 1 def /landscape false def /magnification 1 def /margin 0 def /orientation 0 def /rotation 1 def /screenres 100 def /xoffset 0 def /yoffset 0 def /useclippath true def /pagebbox [0 0 612 792] def /inch {72 mul} bind def /min {2 copy gt {exch} if pop} bind def /setup { counttomark 2 idiv {def} repeat pop landscape {/orientation 90 orientation add def} if pagedimensions xcenter ycenter translate orientation rotation mul rotate xoffset inch yoffset inch translate magnification dup aspectratio mul scale /height height margin sub def /width width margin sub def } def /pagedimensions { useclippath { /pagebbox [clippath pathbbox newpath] def } if pagebbox aload pop 4 -1 roll exch 4 1 roll 4 copy landscape {4 2 roll} if sub /width exch def sub /height exch def add 2 div /xcenter exch def add 2 div /ycenter exch def userdict /gotpagebbox true put } def /pagesetup {/page exch def} bind def /bitmap { /scanlines exch def /scanlength exch def /bitspersample exch def %% /v8format exch def /bytelength scanlength bitspersample mult 7 add 8 idiv def /picstr bytelength string def /lpicstr bytelength string def %% /bytelength bytelength 1 sub def gsave % First the overall scaling. height scanlines div width scanlength div min 72 screenres div min dup scale % Followed by the one for the unit square. scanlength neg 2 div scanlines neg 2 div translate scanlength scanlines scale getp9bitmap grestore } bind def /getp9bitmap { scanlength scanlines bitspersample [scanlength 0 0 scanlines neg 0 scanlines] { currentfile picstr readhexstring pop} image } bind def /done {/lastpage where {pop lastpage} if} def