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