postp9bit.ps (1765B)
1 % 2 % Version 3.3 prologue for plan9 bitmap files. 3 % 4 5 /#copies 1 store 6 /aspectratio 1 def 7 /formsperpage 1 def 8 /landscape false def 9 /magnification 1 def 10 /margin 0 def 11 /orientation 0 def 12 /rotation 1 def 13 /screenres 100 def 14 /xoffset 0 def 15 /yoffset 0 def 16 17 /useclippath true def 18 /pagebbox [0 0 612 792] def 19 20 /inch {72 mul} bind def 21 /min {2 copy gt {exch} if pop} bind def 22 23 /setup { 24 counttomark 2 idiv {def} repeat pop 25 26 landscape {/orientation 90 orientation add def} if 27 28 pagedimensions 29 xcenter ycenter translate 30 orientation rotation mul rotate 31 xoffset inch yoffset inch translate 32 magnification dup aspectratio mul scale 33 34 /height height margin sub def 35 /width width margin sub def 36 } def 37 38 /pagedimensions { 39 useclippath { 40 /pagebbox [clippath pathbbox newpath] def 41 } if 42 pagebbox aload pop 43 4 -1 roll exch 4 1 roll 4 copy 44 landscape {4 2 roll} if 45 sub /width exch def 46 sub /height exch def 47 add 2 div /xcenter exch def 48 add 2 div /ycenter exch def 49 userdict /gotpagebbox true put 50 } def 51 52 /pagesetup {/page exch def} bind def 53 54 /bitmap { 55 /scanlines exch def 56 /scanlength exch def 57 /bitspersample exch def 58 %% /v8format exch def 59 60 /bytelength scanlength bitspersample mult 7 add 8 idiv def 61 /picstr bytelength string def 62 /lpicstr bytelength string def 63 %% /bytelength bytelength 1 sub def 64 65 gsave 66 67 % First the overall scaling. 68 69 height scanlines div width scanlength div min 70 72 screenres div min 71 dup scale 72 73 % Followed by the one for the unit square. 74 75 scanlength neg 2 div scanlines neg 2 div translate 76 scanlength scanlines scale 77 getp9bitmap 78 grestore 79 } bind def 80 81 /getp9bitmap { 82 scanlength scanlines bitspersample [scanlength 0 0 scanlines neg 0 scanlines] { 83 currentfile picstr readhexstring pop} image 84 } bind def 85 86 /done {/lastpage where {pop lastpage} if} def