1 |
greg |
2.9 |
/* Copyright (c) 1992 Regents of the University of California */ |
2 |
greg |
1.1 |
|
3 |
|
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#ifndef lint |
4 |
|
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static char SCCSid[] = "$SunId$ LBL"; |
5 |
|
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#endif |
6 |
|
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|
7 |
|
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/* |
8 |
|
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* psign.c - produce picture from text. |
9 |
|
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* |
10 |
|
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* 7/1/87 |
11 |
|
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*/ |
12 |
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13 |
greg |
2.3 |
#include "standard.h" |
14 |
greg |
1.1 |
|
15 |
|
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#include "color.h" |
16 |
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|
17 |
greg |
2.3 |
#include "font.h" |
18 |
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|
19 |
greg |
2.5 |
#ifndef SSS |
20 |
|
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#define SSS 3 /* super-sample size */ |
21 |
|
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#endif |
22 |
greg |
2.4 |
|
23 |
greg |
1.1 |
#define MAXLINE 512 /* longest allowable line */ |
24 |
|
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|
25 |
greg |
2.3 |
#ifndef DEFPATH |
26 |
|
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#define DEFPATH ":/usr/local/lib/ray" |
27 |
|
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#endif |
28 |
|
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#ifndef ULIBVAR |
29 |
|
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#define ULIBVAR "RAYPATH" |
30 |
|
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#endif |
31 |
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|
32 |
greg |
1.2 |
char *fontfile = "helvet.fnt"; /* our font file */ |
33 |
greg |
1.1 |
|
34 |
greg |
2.5 |
COLOR bgcolor = WHTCOLOR; /* background color */ |
35 |
|
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COLOR fgcolor = BLKCOLOR; /* foreground color */ |
36 |
greg |
1.1 |
|
37 |
|
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int direct = 'r'; /* direction (right, up, left, down) */ |
38 |
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|
39 |
greg |
2.5 |
int cheight = 32*SSS; /* character height */ |
40 |
greg |
1.1 |
double aspect = 1.67; /* height/width character aspect */ |
41 |
greg |
2.6 |
double spacing = 0.0; /* character spacing */ |
42 |
greg |
1.1 |
int cwidth; /* computed character width */ |
43 |
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|
44 |
|
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unsigned char *ourbitmap; /* our output bitmap */ |
45 |
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int xsiz, ysiz; /* bitmap dimensions */ |
46 |
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int xdim; /* size of horizontal scan (bytes) */ |
47 |
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|
48 |
|
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#define bitop(x,y,op) (ourbitmap[(y)*xdim+((x)>>3)] op (1<<((x)&7))) |
49 |
|
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#define tstbit(x,y) bitop(x,y,&) |
50 |
|
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#define setbit(x,y) bitop(x,y,|=) |
51 |
|
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#define clrbit(x,y) bitop(x,y,&=~) |
52 |
|
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#define tglbit(x,y) bitop(x,y,^=) |
53 |
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54 |
greg |
2.3 |
FONT *ourfont; /* our font */ |
55 |
greg |
1.1 |
|
56 |
greg |
2.3 |
char *libpath; /* library search path */ |
57 |
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|
58 |
greg |
1.1 |
typedef struct line { |
59 |
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char *s; /* line w/o LF */ |
60 |
greg |
2.4 |
short *sp; /* character spacing */ |
61 |
greg |
1.1 |
struct line *next; /* next line up */ |
62 |
|
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} LINE; |
63 |
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|
64 |
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LINE *ourtext; /* our text */ |
65 |
|
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int nlines, maxline; /* text dimensions */ |
66 |
greg |
2.4 |
int maxwidth; /* maximum line width (dvi) */ |
67 |
greg |
1.1 |
|
68 |
greg |
2.3 |
extern char *getenv(); |
69 |
greg |
1.1 |
|
70 |
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|
71 |
|
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main(argc, argv) |
72 |
|
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int argc; |
73 |
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char *argv[]; |
74 |
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{ |
75 |
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int an; |
76 |
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|
77 |
|
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for (an = 1; an < argc && argv[an][0] == '-'; an++) |
78 |
|
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switch (argv[an][1]) { |
79 |
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case 'c': /* color */ |
80 |
|
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switch (argv[an][2]) { |
81 |
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case 'f': /* foreground */ |
82 |
greg |
2.5 |
setcolor(fgcolor, atof(argv[an+1]), |
83 |
greg |
1.1 |
atof(argv[an+2]), |
84 |
|
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atof(argv[an+3])); |
85 |
|
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an += 3; |
86 |
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break; |
87 |
|
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case 'b': /* background */ |
88 |
greg |
2.5 |
setcolor(bgcolor, atof(argv[an+1]), |
89 |
greg |
1.1 |
atof(argv[an+2]), |
90 |
|
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atof(argv[an+3])); |
91 |
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an += 3; |
92 |
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break; |
93 |
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default: |
94 |
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goto unkopt; |
95 |
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} |
96 |
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break; |
97 |
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case 'f': /* font */ |
98 |
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fontfile = argv[++an]; |
99 |
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break; |
100 |
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case 'd': /* direction */ |
101 |
|
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switch (argv[an][2]) { |
102 |
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case 'r': /* right */ |
103 |
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case 'u': /* up */ |
104 |
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case 'l': /* left */ |
105 |
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case 'd': /* down */ |
106 |
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direct = argv[an][2]; |
107 |
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break; |
108 |
|
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default: |
109 |
|
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goto unkopt; |
110 |
|
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} |
111 |
|
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break; |
112 |
greg |
2.9 |
case 'x': /* x resolution */ |
113 |
|
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xsiz = atoi(argv[++an])*SSS; |
114 |
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break; |
115 |
|
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case 'y': |
116 |
|
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ysiz = atoi(argv[++an])*SSS; |
117 |
|
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break; |
118 |
greg |
1.1 |
case 'h': /* height of characters */ |
119 |
greg |
2.5 |
cheight = atoi(argv[++an])*SSS; |
120 |
greg |
2.9 |
xsiz = xsiz = 0; |
121 |
greg |
1.1 |
break; |
122 |
|
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case 'a': /* aspect ratio */ |
123 |
|
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aspect = atof(argv[++an]); |
124 |
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break; |
125 |
greg |
2.6 |
case 's': /* spacing */ |
126 |
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spacing = atof(argv[++an]); |
127 |
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break; |
128 |
greg |
1.1 |
default:; |
129 |
|
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unkopt: |
130 |
|
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fprintf(stderr, "%s: unknown option: %s\n", |
131 |
|
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argv[0], argv[an]); |
132 |
|
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exit(1); |
133 |
|
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} |
134 |
greg |
2.4 |
/* load font file */ |
135 |
|
|
if ((libpath = getenv(ULIBVAR)) == NULL) |
136 |
|
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libpath = DEFPATH; |
137 |
|
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ourfont = getfont(fontfile); |
138 |
greg |
1.1 |
/* get text */ |
139 |
|
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if (an == argc) |
140 |
|
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gettext(stdin); |
141 |
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else |
142 |
|
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arg_text(argc-an, argv+an); |
143 |
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|
144 |
|
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/* create bit map */ |
145 |
|
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makemap(); |
146 |
|
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/* convert text to bitmap */ |
147 |
|
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maptext(); |
148 |
|
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/* print header */ |
149 |
|
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printargs(argc, argv, stdout); |
150 |
greg |
1.3 |
fputformat(COLRFMT, stdout); |
151 |
|
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putchar('\n'); |
152 |
greg |
1.1 |
/* write out bitmap */ |
153 |
|
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writemap(stdout); |
154 |
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|
155 |
|
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exit(0); |
156 |
|
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} |
157 |
|
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|
158 |
|
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|
159 |
|
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makemap() /* create the bit map */ |
160 |
|
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{ |
161 |
greg |
2.9 |
double pictaspect; |
162 |
|
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|
163 |
greg |
1.1 |
if (direct == 'r' || direct == 'l') { |
164 |
greg |
2.9 |
if (xsiz == 0 || ysiz == 0) { |
165 |
|
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cwidth = cheight/aspect + 0.5; |
166 |
|
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xsiz = (long)maxwidth*cwidth >> 8; |
167 |
|
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ysiz = nlines*cheight; |
168 |
greg |
2.10 |
} else if (aspect > FTINY) { |
169 |
greg |
2.9 |
pictaspect = 256*nlines*aspect/maxwidth; |
170 |
|
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if (pictaspect*xsiz < ysiz) |
171 |
|
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ysiz = pictaspect*xsiz + 0.5; |
172 |
|
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else |
173 |
|
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xsiz = ysiz/pictaspect + 0.5; |
174 |
|
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cheight = ysiz/nlines; |
175 |
|
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cwidth = cheight/aspect + 0.5; |
176 |
greg |
2.10 |
} else { |
177 |
|
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pictaspect = (double)ysiz/xsiz; |
178 |
|
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aspect = pictaspect*maxwidth/(256*nlines); |
179 |
|
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cheight = ysiz/nlines; |
180 |
|
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cwidth = cheight/aspect + 0.5; |
181 |
greg |
2.9 |
} |
182 |
greg |
1.1 |
} else { /* reverse orientation */ |
183 |
greg |
2.9 |
if (xsiz == 0 || ysiz == 0) { |
184 |
|
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cwidth = cheight/aspect + 0.5; |
185 |
|
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xsiz = nlines*cheight; |
186 |
|
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ysiz = (long)maxwidth*cwidth >> 8; |
187 |
greg |
2.10 |
} else if (aspect > FTINY) { |
188 |
greg |
2.9 |
pictaspect = maxwidth/(256*nlines*aspect); |
189 |
|
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if (pictaspect*xsiz < ysiz) |
190 |
|
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ysiz = pictaspect*xsiz + 0.5; |
191 |
|
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else |
192 |
|
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xsiz = ysiz/pictaspect + 0.5; |
193 |
greg |
2.10 |
cheight = xsiz/nlines; |
194 |
|
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cwidth = cheight/aspect + 0.5; |
195 |
|
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} else { |
196 |
|
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pictaspect = (double)ysiz/xsiz; |
197 |
|
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aspect = maxwidth/(256*nlines*pictaspect); |
198 |
greg |
2.9 |
cheight = xsiz/nlines; |
199 |
|
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cwidth = cheight/aspect + 0.5; |
200 |
|
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} |
201 |
greg |
1.1 |
} |
202 |
greg |
2.5 |
if (xsiz % SSS) |
203 |
|
|
xsiz += SSS - xsiz%SSS; |
204 |
|
|
if (ysiz % SSS) |
205 |
|
|
ysiz += SSS - ysiz%SSS; |
206 |
greg |
1.1 |
xdim = (xsiz+7)/8; |
207 |
greg |
2.8 |
ourbitmap = (BYTE *)bmalloc(ysiz*xdim); |
208 |
greg |
2.5 |
if (ourbitmap == NULL) |
209 |
|
|
error(SYSTEM, "Out of memory in makemap"); |
210 |
greg |
2.8 |
bzero((char *)ourbitmap, ysiz*xdim); |
211 |
greg |
1.1 |
} |
212 |
|
|
|
213 |
|
|
|
214 |
|
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gettext(fp) /* get text from a file */ |
215 |
|
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FILE *fp; |
216 |
|
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{ |
217 |
|
|
char *fgets(); |
218 |
|
|
char buf[MAXLINE]; |
219 |
|
|
register LINE *curl; |
220 |
|
|
int len; |
221 |
|
|
|
222 |
|
|
maxline = 0; |
223 |
greg |
2.4 |
maxwidth = 0; |
224 |
greg |
1.1 |
nlines = 0; |
225 |
|
|
while (fgets(buf, MAXLINE, fp) != NULL) { |
226 |
|
|
curl = (LINE *)malloc(sizeof(LINE)); |
227 |
|
|
if (curl == NULL) |
228 |
|
|
goto memerr; |
229 |
|
|
len = strlen(buf); |
230 |
greg |
2.4 |
curl->s = malloc(len); |
231 |
|
|
curl->sp = (short *)malloc(sizeof(short)*len--); |
232 |
|
|
if (curl->s == NULL | curl->sp == NULL) |
233 |
greg |
1.1 |
goto memerr; |
234 |
greg |
2.4 |
if (len > maxline) |
235 |
|
|
maxline = len; |
236 |
greg |
1.1 |
strncpy(curl->s, buf, len); |
237 |
|
|
curl->s[len] = '\0'; |
238 |
greg |
2.7 |
if (spacing < -1./256.) |
239 |
greg |
2.6 |
len = squeeztext(curl->sp, curl->s, ourfont, |
240 |
|
|
(int)(spacing*-256.0)); |
241 |
greg |
2.7 |
else if (spacing > 1./256.) |
242 |
greg |
2.6 |
len = proptext(curl->sp, curl->s, ourfont, |
243 |
|
|
(int)(spacing*256.0), 3); |
244 |
|
|
else |
245 |
|
|
len = uniftext(curl->sp, curl->s, ourfont); |
246 |
greg |
2.4 |
if (len > maxwidth) |
247 |
|
|
maxwidth = len; |
248 |
greg |
1.1 |
curl->next = ourtext; |
249 |
|
|
ourtext = curl; |
250 |
|
|
nlines++; |
251 |
|
|
} |
252 |
|
|
return; |
253 |
|
|
memerr: |
254 |
greg |
2.5 |
error(SYSTEM, "Out of memory in gettext"); |
255 |
greg |
1.1 |
} |
256 |
|
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|
257 |
|
|
|
258 |
|
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arg_text(ac, av) /* get text from arguments */ |
259 |
|
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int ac; |
260 |
|
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char *av[]; |
261 |
|
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{ |
262 |
|
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register char *cp; |
263 |
|
|
|
264 |
|
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ourtext = (LINE *)malloc(sizeof(LINE)); |
265 |
|
|
if (ourtext == NULL) |
266 |
|
|
goto memerr; |
267 |
|
|
ourtext->s = malloc(MAXLINE); |
268 |
|
|
if (ourtext->s == NULL) |
269 |
|
|
goto memerr; |
270 |
|
|
for (cp = ourtext->s; ac-- > 0; av++) { |
271 |
|
|
strcpy(cp, *av); |
272 |
|
|
cp += strlen(*av); |
273 |
|
|
*cp++ = ' '; |
274 |
|
|
} |
275 |
|
|
*--cp = '\0'; |
276 |
|
|
ourtext->next = NULL; |
277 |
|
|
maxline = strlen(ourtext->s); |
278 |
greg |
2.4 |
ourtext->sp = (short *)malloc(sizeof(short)*(maxline+1)); |
279 |
|
|
if (ourtext->sp == NULL) |
280 |
|
|
goto memerr; |
281 |
greg |
2.6 |
if (spacing < 0.0) |
282 |
|
|
maxwidth = squeeztext(ourtext->sp, ourtext->s, ourfont, |
283 |
|
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(int)(spacing*-256.0)); |
284 |
|
|
else if (spacing > 0.0) |
285 |
|
|
maxwidth = proptext(ourtext->sp, ourtext->s, ourfont, |
286 |
|
|
(int)(spacing*256.0), 3); |
287 |
|
|
else |
288 |
|
|
maxwidth = uniftext(ourtext->sp, ourtext->s, ourfont); |
289 |
greg |
1.1 |
nlines = 1; |
290 |
|
|
return; |
291 |
|
|
memerr: |
292 |
greg |
2.5 |
error(SYSTEM, "Out of memory in arg_text"); |
293 |
greg |
1.1 |
} |
294 |
|
|
|
295 |
|
|
|
296 |
|
|
maptext() /* map our text */ |
297 |
|
|
{ |
298 |
|
|
register LINE *curl; |
299 |
greg |
2.4 |
int l, len; |
300 |
|
|
register int i, c; |
301 |
greg |
1.1 |
|
302 |
greg |
2.4 |
for (l = 0, curl = ourtext; curl != NULL; l += 256, curl = curl->next) { |
303 |
|
|
len = strlen(curl->s); c = 0; |
304 |
|
|
for (i = 0; i < len; i++) { |
305 |
|
|
c += curl->sp[i]; |
306 |
|
|
mapglyph(ourfont->fg[curl->s[i]&0xff], c, l); |
307 |
|
|
} |
308 |
|
|
} |
309 |
greg |
1.1 |
} |
310 |
|
|
|
311 |
|
|
|
312 |
|
|
mapglyph(gl, tx0, ty0) /* convert a glyph */ |
313 |
greg |
2.3 |
GLYPH *gl; |
314 |
greg |
1.1 |
int tx0, ty0; |
315 |
|
|
{ |
316 |
|
|
int n; |
317 |
greg |
2.3 |
register GORD *gp; |
318 |
greg |
1.1 |
int p0[2], p1[2]; |
319 |
|
|
|
320 |
|
|
if (gl == NULL) |
321 |
|
|
return; |
322 |
|
|
|
323 |
greg |
2.3 |
n = gl->nverts; |
324 |
|
|
gp = gvlist(gl); |
325 |
|
|
mapcoord(p0, gp[2*n-2]+tx0, gp[2*n-1]+ty0); |
326 |
greg |
1.1 |
while (n--) { |
327 |
greg |
2.3 |
mapcoord(p1, gp[0]+tx0, gp[1]+ty0); |
328 |
greg |
1.1 |
mapedge(p0[0], p0[1], p1[0]-p0[0], p1[1]-p0[1]); |
329 |
|
|
p0[0] = p1[0]; p0[1] = p1[1]; |
330 |
greg |
2.3 |
gp += 2; |
331 |
greg |
1.1 |
} |
332 |
|
|
} |
333 |
|
|
|
334 |
|
|
|
335 |
|
|
mapcoord(p, tx, ty) /* map text to picture coordinates */ |
336 |
|
|
int p[2], tx, ty; |
337 |
|
|
{ |
338 |
|
|
tx = (long)tx*cwidth >> 8; |
339 |
|
|
ty = (long)ty*cheight >> 8; |
340 |
|
|
|
341 |
|
|
switch (direct) { |
342 |
|
|
case 'r': /* right */ |
343 |
|
|
p[0] = tx; |
344 |
|
|
p[1] = ty; |
345 |
|
|
return; |
346 |
|
|
case 'u': /* up */ |
347 |
|
|
p[0] = xsiz-1-ty; |
348 |
|
|
p[1] = tx; |
349 |
|
|
return; |
350 |
|
|
case 'l': /* left */ |
351 |
|
|
p[0] = xsiz-1-tx; |
352 |
|
|
p[1] = ysiz-1-ty; |
353 |
|
|
return; |
354 |
|
|
case 'd': /* down */ |
355 |
|
|
p[0] = ty; |
356 |
|
|
p[1] = ysiz-1-tx; |
357 |
|
|
return; |
358 |
|
|
} |
359 |
|
|
} |
360 |
|
|
|
361 |
|
|
|
362 |
|
|
mapedge(x, y, run, rise) /* map an edge */ |
363 |
|
|
register int x, y; |
364 |
|
|
int run, rise; |
365 |
|
|
{ |
366 |
|
|
int xstep; |
367 |
|
|
int rise2, run2; |
368 |
|
|
int n; |
369 |
|
|
|
370 |
|
|
if (rise == 0) |
371 |
|
|
return; |
372 |
|
|
/* always draw up */ |
373 |
|
|
if (rise < 0) { |
374 |
|
|
x += run; |
375 |
|
|
y += rise; |
376 |
|
|
rise = -rise; |
377 |
|
|
run = -run; |
378 |
|
|
} |
379 |
|
|
if (run < 0) { |
380 |
|
|
xstep = -1; |
381 |
|
|
run = -run; |
382 |
|
|
} else |
383 |
|
|
xstep = 1; |
384 |
|
|
n = rise; |
385 |
|
|
run2 = rise2 = 0; |
386 |
|
|
while (n) |
387 |
|
|
if (rise2 >= run2) { |
388 |
|
|
tglbit(x, y); |
389 |
|
|
n--; |
390 |
|
|
y++; |
391 |
|
|
run2 += run; |
392 |
|
|
} else { |
393 |
|
|
x += xstep; |
394 |
|
|
rise2 += rise; |
395 |
|
|
} |
396 |
|
|
} |
397 |
|
|
|
398 |
|
|
|
399 |
|
|
writemap(fp) /* write out bitmap */ |
400 |
|
|
FILE *fp; |
401 |
|
|
{ |
402 |
greg |
2.5 |
COLR pixval[SSS*SSS+1]; /* possible pixel values */ |
403 |
|
|
COLOR ctmp0, ctmp1; |
404 |
|
|
double d; |
405 |
greg |
1.1 |
COLR *scanout; |
406 |
greg |
2.5 |
int x, y; |
407 |
|
|
register int i, j; |
408 |
|
|
int cnt; |
409 |
greg |
1.1 |
register int inglyph; |
410 |
|
|
|
411 |
greg |
2.5 |
fprintf(fp, "-Y %d +X %d\n", ysiz/SSS, xsiz/SSS); |
412 |
greg |
1.1 |
|
413 |
greg |
2.5 |
scanout = (COLR *)malloc(xsiz/SSS*sizeof(COLR)); |
414 |
|
|
if (scanout == NULL) |
415 |
|
|
error(SYSTEM, "Out of memory in writemap"); |
416 |
|
|
for (i = 0; i <= SSS*SSS; i++) { /* compute possible values */ |
417 |
|
|
copycolor(ctmp0, fgcolor); |
418 |
|
|
d = (double)i/(SSS*SSS); |
419 |
|
|
scalecolor(ctmp0, d); |
420 |
|
|
copycolor(ctmp1, bgcolor); |
421 |
|
|
d = 1.0 - d; |
422 |
|
|
scalecolor(ctmp1, d); |
423 |
|
|
addcolor(ctmp0, ctmp1); |
424 |
|
|
setcolr(pixval[i], colval(ctmp0,RED), |
425 |
|
|
colval(ctmp0,GRN), colval(ctmp0,BLU)); |
426 |
greg |
1.1 |
} |
427 |
greg |
2.5 |
for (y = ysiz/SSS-1; y >= 0; y--) { |
428 |
greg |
1.1 |
inglyph = 0; |
429 |
greg |
2.5 |
for (x = 0; x < xsiz/SSS; x++) { |
430 |
|
|
cnt = 0; |
431 |
|
|
for (j = 0; j < SSS; j++) |
432 |
|
|
for (i = 0; i < SSS; i++) { |
433 |
|
|
if (tstbit(x*SSS+i, y*SSS+j)) |
434 |
|
|
inglyph ^= 1<<j; |
435 |
|
|
if (inglyph & 1<<j) |
436 |
|
|
cnt++; |
437 |
|
|
} |
438 |
|
|
copycolr(scanout[x], pixval[cnt]); |
439 |
greg |
1.1 |
} |
440 |
greg |
2.5 |
if (fwritecolrs(scanout, xsiz/SSS, fp) < 0) { |
441 |
greg |
1.1 |
fprintf(stderr, "write error in writemap\n"); |
442 |
|
|
exit(1); |
443 |
|
|
} |
444 |
|
|
} |
445 |
|
|
free((char *)scanout); |
446 |
|
|
} |