1 |
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#ifndef lint |
2 |
< |
static char SCCSid[] = "$SunId$ LBL"; |
2 |
> |
static const char RCSid[] = "$Id$"; |
3 |
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#endif |
4 |
– |
|
4 |
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/* |
5 |
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* Interpolate and extrapolate pictures with different view parameters. |
6 |
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* |
7 |
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* Greg Ward 09Dec89 |
8 |
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*/ |
9 |
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|
10 |
< |
#include "standard.h" |
10 |
> |
#include "copyright.h" |
11 |
|
|
12 |
< |
#include "view.h" |
12 |
> |
#include <ctype.h> |
13 |
> |
#include <string.h> |
14 |
|
|
15 |
+ |
#include "platform.h" |
16 |
+ |
#include "standard.h" |
17 |
+ |
#include "rtprocess.h" /* Windows: must come before color.h */ |
18 |
+ |
#include "view.h" |
19 |
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#include "color.h" |
20 |
|
|
21 |
< |
#define pscan(y) (ourpict+(y)*ourview.hresolu) |
18 |
< |
#define zscan(y) (ourzbuf+(y)*ourview.hresolu) |
21 |
> |
#define LOG2 0.69314718055994530942 |
22 |
|
|
23 |
+ |
#define pscan(y) (ourpict+(y)*hresolu) |
24 |
+ |
#define sscan(y) (ourspict+(y)*hresolu) |
25 |
+ |
#define wscan(y) (ourweigh+(y)*hresolu) |
26 |
+ |
#define zscan(y) (ourzbuf+(y)*hresolu) |
27 |
+ |
#define bscan(y) (ourbpict+(y)*hresolu) |
28 |
+ |
#define averaging (ourweigh != NULL) |
29 |
+ |
#define blurring (ourbpict != NULL) |
30 |
+ |
#define usematrix (hasmatrix & !averaging) |
31 |
+ |
#define zisnorm ((!usematrix) | (ourview.type != VT_PER)) |
32 |
+ |
|
33 |
+ |
#define MAXWT 1000. /* maximum pixel weight (averaging) */ |
34 |
+ |
|
35 |
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#define F_FORE 1 /* fill foreground */ |
36 |
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#define F_BACK 2 /* fill background */ |
37 |
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|
38 |
< |
#define PACKSIZ 42 /* calculation packet size */ |
38 |
> |
#define PACKSIZ 256 /* max. calculation packet size */ |
39 |
|
|
40 |
< |
#define RTCOM "rtrace -h -ovl -fff -x %d %s" |
40 |
> |
#define RTCOM "rtrace -h- -ovl -fff -ld- -i- -I- " |
41 |
|
|
42 |
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#define ABS(x) ((x)>0?(x):-(x)) |
43 |
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|
44 |
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struct position {int x,y; float z;}; |
45 |
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|
46 |
< |
VIEW ourview = STDVIEW(512); /* desired view */ |
46 |
> |
#define NSTEPS 64 /* number steps in overlap prescan */ |
47 |
> |
#define MINSTEP 4 /* minimum worthwhile preview step */ |
48 |
|
|
49 |
+ |
struct bound {int min,max;}; |
50 |
+ |
|
51 |
+ |
VIEW ourview = STDVIEW; /* desired view */ |
52 |
+ |
int hresolu = 512; /* horizontal resolution */ |
53 |
+ |
int vresolu = 512; /* vertical resolution */ |
54 |
+ |
double pixaspect = 1.0; /* pixel aspect ratio */ |
55 |
+ |
|
56 |
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double zeps = .02; /* allowed z epsilon */ |
57 |
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|
58 |
< |
COLR *ourpict; /* output picture */ |
58 |
> |
COLR *ourpict; /* output picture (COLR's) */ |
59 |
> |
COLOR *ourspict; /* output pixel sums (averaging) */ |
60 |
> |
float *ourweigh = NULL; /* output pixel weights (averaging) */ |
61 |
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float *ourzbuf; /* corresponding z-buffer */ |
62 |
+ |
COLOR *ourbpict = NULL; /* blurred picture (view averaging) */ |
63 |
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|
64 |
+ |
VIEW avgview; /* average view for -B option */ |
65 |
+ |
int nvavg; /* number of views averaged */ |
66 |
+ |
|
67 |
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char *progname; |
68 |
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|
69 |
< |
int fill = F_FORE|F_BACK; /* selected fill algorithm */ |
70 |
< |
extern int backfill(), rcalfill(); /* fill functions */ |
42 |
< |
int (*deffill)() = backfill; /* selected fill function */ |
69 |
> |
int fillo = F_FORE|F_BACK; /* selected fill options */ |
70 |
> |
int fillsamp = 0; /* sample separation (0 == inf) */ |
71 |
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COLR backcolr = BLKCOLR; /* background color */ |
72 |
+ |
COLOR backcolor = BLKCOLOR; /* background color (float) */ |
73 |
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double backz = 0.0; /* background z value */ |
74 |
< |
int normdist = 1; /* normalized distance? */ |
75 |
< |
double ourexp = -1; /* output picture exposure */ |
74 |
> |
int normdist = 1; /* i/o normalized distance? */ |
75 |
> |
char ourfmt[LPICFMT+1] = PICFMT; /* original picture format */ |
76 |
> |
double ourexp = -1; /* original picture exposure */ |
77 |
> |
int expadj = 0; /* exposure adjustment (f-stops) */ |
78 |
> |
double rexpadj = 1; /* real exposure adjustment */ |
79 |
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|
80 |
< |
VIEW theirview = STDVIEW(512); /* input view */ |
80 |
> |
VIEW theirview; /* input view */ |
81 |
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int gotview; /* got input view? */ |
82 |
< |
double theirs2ours[4][4]; /* transformation matrix */ |
82 |
> |
int wrongformat = 0; /* input in another format? */ |
83 |
> |
RESOLU tresolu; /* input resolution */ |
84 |
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double theirexp; /* input picture exposure */ |
85 |
+ |
MAT4 theirs2ours; /* transformation matrix */ |
86 |
+ |
int hasmatrix = 0; /* has transformation matrix */ |
87 |
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|
88 |
< |
int childpid = -1; /* id of fill process */ |
89 |
< |
FILE *psend, *precv; /* pipes to/from fill calculation */ |
90 |
< |
int queue[PACKSIZ][2]; /* pending pixels */ |
91 |
< |
int queuesiz; /* number of pixels pending */ |
88 |
> |
static SUBPROC PDesc = SP_INACTIVE; /* rtrace process descriptor */ |
89 |
> |
unsigned short queue[PACKSIZ][2]; /* pending pixels */ |
90 |
> |
int packsiz; /* actual packet size */ |
91 |
> |
int queuesiz = 0; /* number of pixels pending */ |
92 |
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|
93 |
+ |
typedef void fillfunc_t(int x, int y); |
94 |
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|
95 |
< |
main(argc, argv) /* interpolate pictures */ |
96 |
< |
int argc; |
97 |
< |
char *argv[]; |
95 |
> |
static gethfunc headline; |
96 |
> |
static int nextview(FILE *fp); |
97 |
> |
static void compavgview(void); |
98 |
> |
static void addpicture(char *pfile, char *zspec); |
99 |
> |
static int pixform(MAT4 xfmat, VIEW *vw1, VIEW *vw2); |
100 |
> |
static void addscanline(struct bound *xl, int y, |
101 |
> |
COLR *pline, float *zline, struct position *lasty); |
102 |
> |
static void addpixel(struct position *p0, struct position *p1, |
103 |
> |
struct position *p2, COLR pix, double w, double z); |
104 |
> |
static double movepixel(FVECT pos); |
105 |
> |
static int getperim(struct bound *xl, struct bound *yl, float *zline, int zfd); |
106 |
> |
static void backpicture(fillfunc_t *fill, int samp); |
107 |
> |
static void fillpicture(fillfunc_t *fill); |
108 |
> |
static int clipaft(void); |
109 |
> |
static int addblur(void); |
110 |
> |
static void writepicture(void); |
111 |
> |
static void writedistance(char *fname); |
112 |
> |
static fillfunc_t backfill; |
113 |
> |
static fillfunc_t rcalfill; |
114 |
> |
static void calstart(char *prog, char *args); |
115 |
> |
static void caldone(void); |
116 |
> |
static void clearqueue(void); |
117 |
> |
static void syserror(char *s); |
118 |
> |
|
119 |
> |
fillfunc_t *fillfunc = backfill; /* selected fill function */ |
120 |
> |
|
121 |
> |
int |
122 |
> |
main( /* interpolate pictures */ |
123 |
> |
int argc, |
124 |
> |
char *argv[] |
125 |
> |
) |
126 |
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{ |
127 |
< |
#define check(olen,narg) if (argv[i][olen] || narg >= argc-i) goto badopt |
128 |
< |
extern double atof(); |
127 |
> |
#define check(ol,al) if (argv[an][ol] || \ |
128 |
> |
badarg(argc-an-1,argv+an+1,al)) \ |
129 |
> |
goto badopt |
130 |
|
int gotvfile = 0; |
131 |
+ |
int doavg = -1; |
132 |
+ |
int doblur = 0; |
133 |
|
char *zfile = NULL; |
134 |
< |
char *err; |
135 |
< |
int i; |
134 |
> |
char *expcomp = NULL; |
135 |
> |
int i, an, rval; |
136 |
|
|
137 |
|
progname = argv[0]; |
138 |
|
|
139 |
< |
for (i = 1; i < argc && argv[i][0] == '-'; i++) |
140 |
< |
switch (argv[i][1]) { |
139 |
> |
for (an = 1; an < argc && argv[an][0] == '-'; an++) { |
140 |
> |
rval = getviewopt(&ourview, argc-an, argv+an); |
141 |
> |
if (rval >= 0) { |
142 |
> |
an += rval; |
143 |
> |
continue; |
144 |
> |
} |
145 |
> |
switch (argv[an][1]) { |
146 |
> |
case 'e': /* exposure */ |
147 |
> |
check(2,"f"); |
148 |
> |
expcomp = argv[++an]; |
149 |
> |
break; |
150 |
|
case 't': /* threshold */ |
151 |
< |
check(2,1); |
152 |
< |
zeps = atof(argv[++i]); |
151 |
> |
check(2,"f"); |
152 |
> |
zeps = atof(argv[++an]); |
153 |
|
break; |
154 |
+ |
case 'a': /* average */ |
155 |
+ |
check(2,NULL); |
156 |
+ |
doavg = 1; |
157 |
+ |
break; |
158 |
+ |
case 'B': /* blur views */ |
159 |
+ |
check(2,NULL); |
160 |
+ |
doblur = 1; |
161 |
+ |
break; |
162 |
+ |
case 'q': /* quick (no avg.) */ |
163 |
+ |
check(2,NULL); |
164 |
+ |
doavg = 0; |
165 |
+ |
break; |
166 |
|
case 'n': /* dist. normalized? */ |
167 |
< |
check(2,0); |
167 |
> |
check(2,NULL); |
168 |
|
normdist = !normdist; |
169 |
|
break; |
170 |
|
case 'f': /* fill type */ |
171 |
< |
switch (argv[i][2]) { |
171 |
> |
switch (argv[an][2]) { |
172 |
|
case '0': /* none */ |
173 |
< |
check(3,0); |
174 |
< |
fill = 0; |
173 |
> |
check(3,NULL); |
174 |
> |
fillo = 0; |
175 |
|
break; |
176 |
|
case 'f': /* foreground */ |
177 |
< |
check(3,0); |
178 |
< |
fill = F_FORE; |
177 |
> |
check(3,NULL); |
178 |
> |
fillo = F_FORE; |
179 |
|
break; |
180 |
|
case 'b': /* background */ |
181 |
< |
check(3,0); |
182 |
< |
fill = F_BACK; |
181 |
> |
check(3,NULL); |
182 |
> |
fillo = F_BACK; |
183 |
|
break; |
184 |
|
case 'a': /* all */ |
185 |
< |
check(3,0); |
186 |
< |
fill = F_FORE|F_BACK; |
185 |
> |
check(3,NULL); |
186 |
> |
fillo = F_FORE|F_BACK; |
187 |
|
break; |
188 |
+ |
case 's': /* sample */ |
189 |
+ |
check(3,"i"); |
190 |
+ |
fillsamp = atoi(argv[++an]); |
191 |
+ |
break; |
192 |
|
case 'c': /* color */ |
193 |
< |
check(3,3); |
194 |
< |
deffill = backfill; |
195 |
< |
setcolr(backcolr, atof(argv[i+1]), |
196 |
< |
atof(argv[i+2]), atof(argv[i+3])); |
197 |
< |
i += 3; |
193 |
> |
check(3,"fff"); |
194 |
> |
fillfunc = backfill; |
195 |
> |
setcolor(backcolor, atof(argv[an+1]), |
196 |
> |
atof(argv[an+2]), atof(argv[an+3])); |
197 |
> |
setcolr(backcolr, colval(backcolor,RED), |
198 |
> |
colval(backcolor,GRN), |
199 |
> |
colval(backcolor,BLU)); |
200 |
> |
an += 3; |
201 |
|
break; |
202 |
|
case 'z': /* z value */ |
203 |
< |
check(3,1); |
204 |
< |
deffill = backfill; |
205 |
< |
backz = atof(argv[++i]); |
203 |
> |
check(3,"f"); |
204 |
> |
fillfunc = backfill; |
205 |
> |
backz = atof(argv[++an]); |
206 |
|
break; |
207 |
|
case 'r': /* rtrace */ |
208 |
< |
check(3,1); |
209 |
< |
deffill = rcalfill; |
210 |
< |
calstart(RTCOM, argv[++i]); |
208 |
> |
check(3,"s"); |
209 |
> |
fillfunc = rcalfill; |
210 |
> |
calstart(RTCOM, argv[++an]); |
211 |
|
break; |
212 |
|
default: |
213 |
|
goto badopt; |
214 |
|
} |
215 |
|
break; |
216 |
|
case 'z': /* z file */ |
217 |
< |
check(2,1); |
218 |
< |
zfile = argv[++i]; |
217 |
> |
check(2,"s"); |
218 |
> |
zfile = argv[++an]; |
219 |
|
break; |
220 |
|
case 'x': /* x resolution */ |
221 |
< |
check(2,1); |
222 |
< |
ourview.hresolu = atoi(argv[++i]); |
221 |
> |
check(2,"i"); |
222 |
> |
hresolu = atoi(argv[++an]); |
223 |
|
break; |
224 |
|
case 'y': /* y resolution */ |
225 |
< |
check(2,1); |
226 |
< |
ourview.vresolu = atoi(argv[++i]); |
225 |
> |
check(2,"i"); |
226 |
> |
vresolu = atoi(argv[++an]); |
227 |
|
break; |
228 |
< |
case 'v': /* view */ |
229 |
< |
switch (argv[i][2]) { |
135 |
< |
case 't': /* type */ |
136 |
< |
check(4,0); |
137 |
< |
ourview.type = argv[i][3]; |
138 |
< |
break; |
139 |
< |
case 'p': /* point */ |
140 |
< |
check(3,3); |
141 |
< |
ourview.vp[0] = atof(argv[++i]); |
142 |
< |
ourview.vp[1] = atof(argv[++i]); |
143 |
< |
ourview.vp[2] = atof(argv[++i]); |
144 |
< |
break; |
145 |
< |
case 'd': /* direction */ |
146 |
< |
check(3,3); |
147 |
< |
ourview.vdir[0] = atof(argv[++i]); |
148 |
< |
ourview.vdir[1] = atof(argv[++i]); |
149 |
< |
ourview.vdir[2] = atof(argv[++i]); |
150 |
< |
break; |
151 |
< |
case 'u': /* up */ |
152 |
< |
check(3,3); |
153 |
< |
ourview.vup[0] = atof(argv[++i]); |
154 |
< |
ourview.vup[1] = atof(argv[++i]); |
155 |
< |
ourview.vup[2] = atof(argv[++i]); |
156 |
< |
break; |
157 |
< |
case 'h': /* horizontal */ |
158 |
< |
check(3,1); |
159 |
< |
ourview.horiz = atof(argv[++i]); |
160 |
< |
break; |
161 |
< |
case 'v': /* vertical */ |
162 |
< |
check(3,1); |
163 |
< |
ourview.vert = atof(argv[++i]); |
164 |
< |
break; |
165 |
< |
case 'f': /* file */ |
166 |
< |
check(3,1); |
167 |
< |
gotvfile = viewfile(argv[++i], &ourview); |
168 |
< |
if (gotvfile < 0) { |
169 |
< |
perror(argv[i]); |
170 |
< |
exit(1); |
171 |
< |
} else if (gotvfile == 0) { |
172 |
< |
fprintf(stderr, "%s: bad view file\n", |
173 |
< |
argv[i]); |
174 |
< |
exit(1); |
175 |
< |
} |
176 |
< |
break; |
177 |
< |
default: |
228 |
> |
case 'p': /* pixel aspect */ |
229 |
> |
if (argv[an][2] != 'a') |
230 |
|
goto badopt; |
231 |
+ |
check(3,"f"); |
232 |
+ |
pixaspect = atof(argv[++an]); |
233 |
+ |
break; |
234 |
+ |
case 'v': /* view file */ |
235 |
+ |
if (argv[an][2] != 'f') |
236 |
+ |
goto badopt; |
237 |
+ |
check(3,"s"); |
238 |
+ |
gotvfile = viewfile(argv[++an], &ourview, NULL); |
239 |
+ |
if (gotvfile < 0) |
240 |
+ |
syserror(argv[an]); |
241 |
+ |
else if (gotvfile == 0) { |
242 |
+ |
fprintf(stderr, "%s: bad view file\n", |
243 |
+ |
argv[an]); |
244 |
+ |
exit(1); |
245 |
|
} |
246 |
|
break; |
247 |
|
default: |
248 |
|
badopt: |
249 |
|
fprintf(stderr, "%s: command line error at '%s'\n", |
250 |
< |
progname, argv[i]); |
250 |
> |
progname, argv[an]); |
251 |
|
goto userr; |
252 |
|
} |
253 |
+ |
} |
254 |
|
/* check arguments */ |
255 |
< |
if ((argc-i)%2) |
255 |
> |
if ((argc-an)%2) |
256 |
|
goto userr; |
257 |
+ |
if (fillsamp == 1) |
258 |
+ |
fillo &= ~F_BACK; |
259 |
+ |
if (doavg < 0) |
260 |
+ |
doavg = (argc-an) > 2; |
261 |
+ |
if (expcomp != NULL) { |
262 |
+ |
if ((expcomp[0] == '+') | (expcomp[0] == '-')) { |
263 |
+ |
expadj = atof(expcomp) + (expcomp[0]=='+' ? .5 : -.5); |
264 |
+ |
if (doavg | doblur) |
265 |
+ |
rexpadj = pow(2.0, atof(expcomp)); |
266 |
+ |
else |
267 |
+ |
rexpadj = pow(2.0, (double)expadj); |
268 |
+ |
} else { |
269 |
+ |
if (!isflt(expcomp)) |
270 |
+ |
goto userr; |
271 |
+ |
rexpadj = atof(expcomp); |
272 |
+ |
expadj = log(rexpadj)/LOG2 + (rexpadj>1 ? .5 : -.5); |
273 |
+ |
if (!(doavg | doblur)) |
274 |
+ |
rexpadj = pow(2.0, (double)expadj); |
275 |
+ |
} |
276 |
+ |
} |
277 |
|
/* set view */ |
278 |
< |
if (err = setview(&ourview)) { |
279 |
< |
fprintf(stderr, "%s: %s\n", progname, err); |
278 |
> |
if (nextview(doblur ? stdin : (FILE *)NULL) == EOF) { |
279 |
> |
fprintf(stderr, "%s: no view on standard input!\n", |
280 |
> |
progname); |
281 |
|
exit(1); |
282 |
|
} |
283 |
+ |
normaspect(viewaspect(&ourview), &pixaspect, &hresolu, &vresolu); |
284 |
|
/* allocate frame */ |
285 |
< |
ourpict = (COLR *)malloc(ourview.hresolu*ourview.vresolu*sizeof(COLR)); |
286 |
< |
ourzbuf = (float *)calloc(ourview.hresolu*ourview.vresolu,sizeof(float)); |
287 |
< |
if (ourpict == NULL || ourzbuf == NULL) |
288 |
< |
syserror(); |
289 |
< |
/* get input */ |
290 |
< |
for ( ; i < argc; i += 2) |
291 |
< |
addpicture(argv[i], argv[i+1]); |
292 |
< |
/* fill in spaces */ |
293 |
< |
if (fill&F_BACK) |
294 |
< |
backpicture(); |
295 |
< |
else |
296 |
< |
fillpicture(); |
285 |
> |
if (doavg) { |
286 |
> |
ourspict = (COLOR *)bmalloc(hresolu*vresolu*sizeof(COLOR)); |
287 |
> |
ourweigh = (float *)bmalloc(hresolu*vresolu*sizeof(float)); |
288 |
> |
if ((ourspict == NULL) | (ourweigh == NULL)) |
289 |
> |
syserror(progname); |
290 |
> |
} else { |
291 |
> |
ourpict = (COLR *)bmalloc(hresolu*vresolu*sizeof(COLR)); |
292 |
> |
if (ourpict == NULL) |
293 |
> |
syserror(progname); |
294 |
> |
} |
295 |
> |
if (doblur) { |
296 |
> |
ourbpict = (COLOR *)bmalloc(hresolu*vresolu*sizeof(COLOR)); |
297 |
> |
if (ourbpict == NULL) |
298 |
> |
syserror(progname); |
299 |
> |
} |
300 |
> |
ourzbuf = (float *)bmalloc(hresolu*vresolu*sizeof(float)); |
301 |
> |
if (ourzbuf == NULL) |
302 |
> |
syserror(progname); |
303 |
> |
/* new header */ |
304 |
> |
newheader("RADIANCE", stdout); |
305 |
> |
fputnow(stdout); |
306 |
> |
/* run pictures */ |
307 |
> |
do { |
308 |
> |
memset((char *)ourzbuf, '\0', hresolu*vresolu*sizeof(float)); |
309 |
> |
for (i = an; i < argc; i += 2) |
310 |
> |
addpicture(argv[i], argv[i+1]); |
311 |
> |
if (fillo&F_BACK) /* fill in spaces */ |
312 |
> |
backpicture(fillfunc, fillsamp); |
313 |
> |
else |
314 |
> |
fillpicture(fillfunc); |
315 |
> |
/* aft clipping */ |
316 |
> |
clipaft(); |
317 |
> |
} while (addblur() && nextview(stdin) != EOF); |
318 |
|
/* close calculation */ |
319 |
|
caldone(); |
320 |
|
/* add to header */ |
321 |
|
printargs(argc, argv, stdout); |
322 |
< |
if (gotvfile) { |
323 |
< |
printf(VIEWSTR); |
324 |
< |
fprintview(&ourview, stdout); |
325 |
< |
printf("\n"); |
322 |
> |
compavgview(); |
323 |
> |
if (doblur | gotvfile) { |
324 |
> |
fputs(VIEWSTR, stdout); |
325 |
> |
fprintview(&avgview, stdout); |
326 |
> |
putc('\n', stdout); |
327 |
|
} |
328 |
< |
if (ourexp > 0 && ourexp != 1.0) |
328 |
> |
if ((pixaspect < .99) | (pixaspect > 1.01)) |
329 |
> |
fputaspect(pixaspect, stdout); |
330 |
> |
if (ourexp > 0) |
331 |
> |
ourexp *= rexpadj; |
332 |
> |
else |
333 |
> |
ourexp = rexpadj; |
334 |
> |
if ((ourexp < .995) | (ourexp > 1.005)) |
335 |
|
fputexpos(ourexp, stdout); |
336 |
< |
printf("\n"); |
336 |
> |
if (strcmp(ourfmt, PICFMT)) /* print format if known */ |
337 |
> |
fputformat(ourfmt, stdout); |
338 |
> |
putc('\n', stdout); |
339 |
|
/* write picture */ |
340 |
|
writepicture(); |
341 |
|
/* write z file */ |
345 |
|
exit(0); |
346 |
|
userr: |
347 |
|
fprintf(stderr, |
348 |
< |
"Usage: %s [view opts][-t zthresh][-z zout][-fT][-n] pfile zspec ..\n", |
348 |
> |
"Usage: %s [view opts][-t eps][-z zout][-e spec][-B][-a|-q][-fT][-n] pfile zspec ..\n", |
349 |
|
progname); |
350 |
|
exit(1); |
351 |
|
#undef check |
352 |
|
} |
353 |
|
|
354 |
|
|
355 |
< |
headline(s) /* process header string */ |
356 |
< |
char *s; |
355 |
> |
static int |
356 |
> |
headline( /* process header string */ |
357 |
> |
char *s, |
358 |
> |
void *p |
359 |
> |
) |
360 |
|
{ |
361 |
< |
static char *altname[] = {"rview","rpict","pinterp",VIEWSTR,NULL}; |
240 |
< |
register char **an; |
361 |
> |
char fmt[32]; |
362 |
|
|
363 |
< |
printf("\t%s", s); |
364 |
< |
|
363 |
> |
if (isheadid(s)) |
364 |
> |
return(0); |
365 |
> |
if (formatval(fmt, s)) { |
366 |
> |
if (globmatch(ourfmt, fmt)) { |
367 |
> |
wrongformat = 0; |
368 |
> |
strcpy(ourfmt, fmt); |
369 |
> |
} else |
370 |
> |
wrongformat = 1; |
371 |
> |
return(0); |
372 |
> |
} |
373 |
> |
if (nvavg < 2) { |
374 |
> |
putc('\t', stdout); |
375 |
> |
fputs(s, stdout); |
376 |
> |
} |
377 |
|
if (isexpos(s)) { |
378 |
|
theirexp *= exposval(s); |
379 |
+ |
return(0); |
380 |
+ |
} |
381 |
+ |
if (isview(s) && sscanview(&theirview, s) > 0) |
382 |
+ |
gotview++; |
383 |
+ |
return(0); |
384 |
+ |
} |
385 |
+ |
|
386 |
+ |
|
387 |
+ |
static int |
388 |
+ |
nextview( /* get and set next view */ |
389 |
+ |
FILE *fp |
390 |
+ |
) |
391 |
+ |
{ |
392 |
+ |
char linebuf[256]; |
393 |
+ |
char *err; |
394 |
+ |
register int i; |
395 |
+ |
|
396 |
+ |
if (fp != NULL) { |
397 |
+ |
do /* get new view */ |
398 |
+ |
if (fgets(linebuf, sizeof(linebuf), fp) == NULL) |
399 |
+ |
return(EOF); |
400 |
+ |
while (!isview(linebuf) || !sscanview(&ourview, linebuf)); |
401 |
+ |
} |
402 |
+ |
/* set new view */ |
403 |
+ |
if ((err = setview(&ourview)) != NULL) { |
404 |
+ |
fprintf(stderr, "%s: %s\n", progname, err); |
405 |
+ |
exit(1); |
406 |
+ |
} |
407 |
+ |
if (!nvavg) { /* first view */ |
408 |
+ |
avgview = ourview; |
409 |
+ |
return(nvavg++); |
410 |
+ |
} |
411 |
+ |
/* add to average view */ |
412 |
+ |
for (i = 0; i < 3; i++) { |
413 |
+ |
avgview.vp[i] += ourview.vp[i]; |
414 |
+ |
avgview.vdir[i] += ourview.vdir[i]; |
415 |
+ |
avgview.vup[i] += ourview.vup[i]; |
416 |
+ |
} |
417 |
+ |
avgview.vdist += ourview.vdist; |
418 |
+ |
avgview.horiz += ourview.horiz; |
419 |
+ |
avgview.vert += ourview.vert; |
420 |
+ |
avgview.hoff += ourview.hoff; |
421 |
+ |
avgview.voff += ourview.voff; |
422 |
+ |
avgview.vfore += ourview.vfore; |
423 |
+ |
avgview.vaft += ourview.vaft; |
424 |
+ |
return(nvavg++); |
425 |
+ |
} |
426 |
+ |
|
427 |
+ |
|
428 |
+ |
static void |
429 |
+ |
compavgview(void) /* compute average view */ |
430 |
+ |
{ |
431 |
+ |
register int i; |
432 |
+ |
double f; |
433 |
+ |
|
434 |
+ |
if (nvavg < 2) |
435 |
|
return; |
436 |
+ |
f = 1.0/nvavg; |
437 |
+ |
for (i = 0; i < 3; i++) { |
438 |
+ |
avgview.vp[i] *= f; |
439 |
+ |
avgview.vdir[i] *= f; |
440 |
+ |
avgview.vup[i] *= f; |
441 |
|
} |
442 |
< |
for (an = altname; *an != NULL; an++) |
443 |
< |
if (!strncmp(*an, s, strlen(*an))) { |
444 |
< |
if (sscanview(&theirview, s+strlen(*an)) == 0) |
445 |
< |
gotview++; |
446 |
< |
break; |
447 |
< |
} |
442 |
> |
avgview.vdist *= f; |
443 |
> |
avgview.horiz *= f; |
444 |
> |
avgview.vert *= f; |
445 |
> |
avgview.hoff *= f; |
446 |
> |
avgview.voff *= f; |
447 |
> |
avgview.vfore *= f; |
448 |
> |
avgview.vaft *= f; |
449 |
> |
if (setview(&avgview) != NULL) /* in case of emergency... */ |
450 |
> |
avgview = ourview; |
451 |
> |
pixaspect = viewaspect(&avgview) * hresolu / vresolu; |
452 |
|
} |
453 |
|
|
454 |
|
|
455 |
< |
addpicture(pfile, zspec) /* add picture to output */ |
456 |
< |
char *pfile, *zspec; |
455 |
> |
static void |
456 |
> |
addpicture( /* add picture to output */ |
457 |
> |
char *pfile, |
458 |
> |
char *zspec |
459 |
> |
) |
460 |
|
{ |
461 |
< |
extern double atof(); |
462 |
< |
FILE *pfp, *zfp; |
461 |
> |
FILE *pfp; |
462 |
> |
int zfd; |
463 |
|
char *err; |
464 |
|
COLR *scanin; |
465 |
|
float *zin; |
466 |
|
struct position *plast; |
467 |
+ |
struct bound *xlim, ylim; |
468 |
|
int y; |
469 |
|
/* open picture file */ |
470 |
< |
if ((pfp = fopen(pfile, "r")) == NULL) { |
471 |
< |
perror(pfile); |
270 |
< |
exit(1); |
271 |
< |
} |
470 |
> |
if ((pfp = fopen(pfile, "r")) == NULL) |
471 |
> |
syserror(pfile); |
472 |
|
/* get header with exposure and view */ |
473 |
|
theirexp = 1.0; |
474 |
+ |
theirview = stdview; |
475 |
|
gotview = 0; |
476 |
< |
printf("%s:\n", pfile); |
477 |
< |
getheader(pfp, headline); |
478 |
< |
if (!gotview || fgetresolu(&theirview.hresolu, &theirview.vresolu, pfp) |
479 |
< |
!= (YMAJOR|YDECR)) { |
480 |
< |
fprintf(stderr, "%s: picture view error\n", pfile); |
476 |
> |
if (nvavg < 2) |
477 |
> |
printf("%s:\n", pfile); |
478 |
> |
getheader(pfp, headline, NULL); |
479 |
> |
if (wrongformat || !gotview || !fgetsresolu(&tresolu, pfp)) { |
480 |
> |
fprintf(stderr, "%s: picture format error\n", pfile); |
481 |
|
exit(1); |
482 |
|
} |
483 |
|
if (ourexp <= 0) |
484 |
|
ourexp = theirexp; |
485 |
|
else if (ABS(theirexp-ourexp) > .01*ourexp) |
486 |
|
fprintf(stderr, "%s: different exposure (warning)\n", pfile); |
487 |
< |
if (err = setview(&theirview)) { |
487 |
> |
if ( (err = setview(&theirview)) ) { |
488 |
|
fprintf(stderr, "%s: %s\n", pfile, err); |
489 |
|
exit(1); |
490 |
|
} |
491 |
|
/* compute transformation */ |
492 |
< |
pixform(theirs2ours, &theirview, &ourview); |
292 |
< |
/* allocate scanlines */ |
293 |
< |
scanin = (COLR *)malloc(theirview.hresolu*sizeof(COLR)); |
294 |
< |
zin = (float *)malloc(theirview.hresolu*sizeof(float)); |
295 |
< |
plast = (struct position *)calloc(theirview.hresolu, |
296 |
< |
sizeof(struct position)); |
297 |
< |
if (scanin == NULL || zin == NULL || plast == NULL) |
298 |
< |
syserror(); |
492 |
> |
hasmatrix = pixform(theirs2ours, &theirview, &ourview); |
493 |
|
/* get z specification or file */ |
494 |
< |
if ((zfp = fopen(zspec, "r")) == NULL) { |
494 |
> |
zin = (float *)malloc(scanlen(&tresolu)*sizeof(float)); |
495 |
> |
if (zin == NULL) |
496 |
> |
syserror(progname); |
497 |
> |
if ((zfd = open(zspec, O_RDONLY)) == -1) { |
498 |
|
double zvalue; |
499 |
|
register int x; |
500 |
< |
if (!isfloat(zspec) || (zvalue = atof(zspec)) <= 0.0) { |
501 |
< |
perror(zspec); |
502 |
< |
exit(1); |
306 |
< |
} |
307 |
< |
for (x = 0; x < theirview.hresolu; x++) |
500 |
> |
if (!isflt(zspec) || (zvalue = atof(zspec)) <= 0.0) |
501 |
> |
syserror(zspec); |
502 |
> |
for (x = scanlen(&tresolu); x-- > 0; ) |
503 |
|
zin[x] = zvalue; |
504 |
|
} |
505 |
< |
/* load image */ |
506 |
< |
for (y = theirview.vresolu-1; y >= 0; y--) { |
507 |
< |
if (freadcolrs(scanin, theirview.hresolu, pfp) < 0) { |
505 |
> |
/* compute transferrable perimeter */ |
506 |
> |
xlim = (struct bound *)malloc(numscans(&tresolu)*sizeof(struct bound)); |
507 |
> |
if (xlim == NULL) |
508 |
> |
syserror(progname); |
509 |
> |
if (!getperim(xlim, &ylim, zin, zfd)) { /* overlapping area? */ |
510 |
> |
free((void *)zin); |
511 |
> |
free((void *)xlim); |
512 |
> |
if (zfd != -1) |
513 |
> |
close(zfd); |
514 |
> |
fclose(pfp); |
515 |
> |
return; |
516 |
> |
} |
517 |
> |
/* allocate scanlines */ |
518 |
> |
scanin = (COLR *)malloc(scanlen(&tresolu)*sizeof(COLR)); |
519 |
> |
plast = (struct position *)calloc(scanlen(&tresolu), |
520 |
> |
sizeof(struct position)); |
521 |
> |
if ((scanin == NULL) | (plast == NULL)) |
522 |
> |
syserror(progname); |
523 |
> |
/* skip to starting point */ |
524 |
> |
for (y = 0; y < ylim.min; y++) |
525 |
> |
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
526 |
|
fprintf(stderr, "%s: read error\n", pfile); |
527 |
|
exit(1); |
528 |
|
} |
529 |
< |
if (zfp != NULL |
530 |
< |
&& fread(zin,sizeof(float),theirview.hresolu,zfp) |
531 |
< |
< theirview.hresolu) { |
532 |
< |
fprintf(stderr, "%s: read error\n", zspec); |
529 |
> |
if (zfd != -1 && lseek(zfd, |
530 |
> |
(off_t)ylim.min*scanlen(&tresolu)*sizeof(float), |
531 |
> |
SEEK_SET) < 0) |
532 |
> |
syserror(zspec); |
533 |
> |
/* load image */ |
534 |
> |
for (y = ylim.min; y <= ylim.max; y++) { |
535 |
> |
if (freadcolrs(scanin, scanlen(&tresolu), pfp) < 0) { |
536 |
> |
fprintf(stderr, "%s: read error\n", pfile); |
537 |
|
exit(1); |
538 |
|
} |
539 |
< |
addscanline(y, scanin, zin, plast); |
539 |
> |
if (zfd != -1 && read(zfd, (char *)zin, |
540 |
> |
scanlen(&tresolu)*sizeof(float)) |
541 |
> |
< scanlen(&tresolu)*sizeof(float)) |
542 |
> |
syserror(zspec); |
543 |
> |
addscanline(xlim+y, y, scanin, zin, plast); |
544 |
|
} |
545 |
|
/* clean up */ |
546 |
< |
free((char *)scanin); |
547 |
< |
free((char *)zin); |
548 |
< |
free((char *)plast); |
546 |
> |
free((void *)xlim); |
547 |
> |
free((void *)scanin); |
548 |
> |
free((void *)zin); |
549 |
> |
free((void *)plast); |
550 |
|
fclose(pfp); |
551 |
< |
if (zfp != NULL) |
552 |
< |
fclose(zfp); |
551 |
> |
if (zfd != -1) |
552 |
> |
close(zfd); |
553 |
|
} |
554 |
|
|
555 |
|
|
556 |
< |
pixform(xfmat, vw1, vw2) /* compute view1 to view2 matrix */ |
557 |
< |
register double xfmat[4][4]; |
558 |
< |
register VIEW *vw1, *vw2; |
556 |
> |
static int |
557 |
> |
pixform( /* compute view1 to view2 matrix */ |
558 |
> |
register MAT4 xfmat, |
559 |
> |
register VIEW *vw1, |
560 |
> |
register VIEW *vw2 |
561 |
> |
) |
562 |
|
{ |
563 |
|
double m4t[4][4]; |
564 |
|
|
565 |
+ |
if ((vw1->type != VT_PER) & (vw1->type != VT_PAR)) |
566 |
+ |
return(0); |
567 |
+ |
if ((vw2->type != VT_PER) & (vw2->type != VT_PAR)) |
568 |
+ |
return(0); |
569 |
|
setident4(xfmat); |
570 |
< |
xfmat[0][0] = vw1->vhinc[0]; |
571 |
< |
xfmat[0][1] = vw1->vhinc[1]; |
572 |
< |
xfmat[0][2] = vw1->vhinc[2]; |
573 |
< |
xfmat[1][0] = vw1->vvinc[0]; |
574 |
< |
xfmat[1][1] = vw1->vvinc[1]; |
575 |
< |
xfmat[1][2] = vw1->vvinc[2]; |
570 |
> |
xfmat[0][0] = vw1->hvec[0]; |
571 |
> |
xfmat[0][1] = vw1->hvec[1]; |
572 |
> |
xfmat[0][2] = vw1->hvec[2]; |
573 |
> |
xfmat[1][0] = vw1->vvec[0]; |
574 |
> |
xfmat[1][1] = vw1->vvec[1]; |
575 |
> |
xfmat[1][2] = vw1->vvec[2]; |
576 |
|
xfmat[2][0] = vw1->vdir[0]; |
577 |
|
xfmat[2][1] = vw1->vdir[1]; |
578 |
|
xfmat[2][2] = vw1->vdir[2]; |
580 |
|
xfmat[3][1] = vw1->vp[1]; |
581 |
|
xfmat[3][2] = vw1->vp[2]; |
582 |
|
setident4(m4t); |
583 |
< |
m4t[0][0] = vw2->vhinc[0]/vw2->vhn2; |
584 |
< |
m4t[1][0] = vw2->vhinc[1]/vw2->vhn2; |
585 |
< |
m4t[2][0] = vw2->vhinc[2]/vw2->vhn2; |
586 |
< |
m4t[3][0] = -DOT(vw2->vp,vw2->vhinc)/vw2->vhn2; |
587 |
< |
m4t[0][1] = vw2->vvinc[0]/vw2->vvn2; |
588 |
< |
m4t[1][1] = vw2->vvinc[1]/vw2->vvn2; |
589 |
< |
m4t[2][1] = vw2->vvinc[2]/vw2->vvn2; |
590 |
< |
m4t[3][1] = -DOT(vw2->vp,vw2->vvinc)/vw2->vvn2; |
583 |
> |
m4t[0][0] = vw2->hvec[0]/vw2->hn2; |
584 |
> |
m4t[1][0] = vw2->hvec[1]/vw2->hn2; |
585 |
> |
m4t[2][0] = vw2->hvec[2]/vw2->hn2; |
586 |
> |
m4t[3][0] = -DOT(vw2->vp,vw2->hvec)/vw2->hn2; |
587 |
> |
m4t[0][1] = vw2->vvec[0]/vw2->vn2; |
588 |
> |
m4t[1][1] = vw2->vvec[1]/vw2->vn2; |
589 |
> |
m4t[2][1] = vw2->vvec[2]/vw2->vn2; |
590 |
> |
m4t[3][1] = -DOT(vw2->vp,vw2->vvec)/vw2->vn2; |
591 |
|
m4t[0][2] = vw2->vdir[0]; |
592 |
|
m4t[1][2] = vw2->vdir[1]; |
593 |
|
m4t[2][2] = vw2->vdir[2]; |
594 |
|
m4t[3][2] = -DOT(vw2->vp,vw2->vdir); |
595 |
|
multmat4(xfmat, xfmat, m4t); |
596 |
+ |
return(1); |
597 |
|
} |
598 |
|
|
599 |
|
|
600 |
< |
addscanline(y, pline, zline, lasty) /* add scanline to output */ |
601 |
< |
int y; |
602 |
< |
COLR *pline; |
603 |
< |
float *zline; |
604 |
< |
struct position *lasty; /* input/output */ |
600 |
> |
static void |
601 |
> |
addscanline( /* add scanline to output */ |
602 |
> |
struct bound *xl, |
603 |
> |
int y, |
604 |
> |
COLR *pline, |
605 |
> |
float *zline, |
606 |
> |
struct position *lasty /* input/output */ |
607 |
> |
) |
608 |
|
{ |
609 |
< |
extern double sqrt(); |
377 |
< |
double pos[3]; |
609 |
> |
FVECT pos; |
610 |
|
struct position lastx, newpos; |
611 |
+ |
double wt; |
612 |
|
register int x; |
613 |
|
|
614 |
< |
for (x = theirview.hresolu-1; x >= 0; x--) { |
615 |
< |
pos[0] = x - .5*(theirview.hresolu-1); |
616 |
< |
pos[1] = y - .5*(theirview.vresolu-1); |
614 |
> |
lastx.z = 0; |
615 |
> |
for (x = xl->max; x >= xl->min; x--) { |
616 |
> |
pix2loc(pos, &tresolu, x, y); |
617 |
|
pos[2] = zline[x]; |
618 |
< |
if (theirview.type == VT_PER) { |
386 |
< |
if (normdist) /* adjust for eye-ray distance */ |
387 |
< |
pos[2] /= sqrt( 1. |
388 |
< |
+ pos[0]*pos[0]*theirview.vhn2 |
389 |
< |
+ pos[1]*pos[1]*theirview.vvn2 ); |
390 |
< |
pos[0] *= pos[2]; |
391 |
< |
pos[1] *= pos[2]; |
392 |
< |
} |
393 |
< |
multp3(pos, pos, theirs2ours); |
394 |
< |
if (pos[2] <= 0) { |
618 |
> |
if ((wt = movepixel(pos)) <= FTINY) { |
619 |
|
lasty[x].z = lastx.z = 0; /* mark invalid */ |
620 |
|
continue; |
621 |
|
} |
398 |
– |
if (ourview.type == VT_PER) { |
399 |
– |
pos[0] /= pos[2]; |
400 |
– |
pos[1] /= pos[2]; |
401 |
– |
} |
402 |
– |
pos[0] += .5*ourview.hresolu; |
403 |
– |
pos[1] += .5*ourview.vresolu; |
404 |
– |
newpos.x = pos[0]; |
405 |
– |
newpos.y = pos[1]; |
406 |
– |
newpos.z = zline[x]; |
622 |
|
/* add pixel to our image */ |
623 |
< |
if (pos[0] >= 0 && newpos.x < ourview.hresolu |
624 |
< |
&& pos[1] >= 0 && newpos.y < ourview.vresolu) { |
625 |
< |
addpixel(&newpos, &lastx, &lasty[x], pline[x], pos[2]); |
626 |
< |
lasty[x].x = lastx.x = newpos.x; |
627 |
< |
lasty[x].y = lastx.y = newpos.y; |
628 |
< |
lasty[x].z = lastx.z = newpos.z; |
629 |
< |
} else |
415 |
< |
lasty[x].z = lastx.z = 0; /* mark invalid */ |
623 |
> |
newpos.x = pos[0] * hresolu; |
624 |
> |
newpos.y = pos[1] * vresolu; |
625 |
> |
newpos.z = zline[x]; |
626 |
> |
addpixel(&newpos, &lastx, &lasty[x], pline[x], wt, pos[2]); |
627 |
> |
lasty[x].x = lastx.x = newpos.x; |
628 |
> |
lasty[x].y = lastx.y = newpos.y; |
629 |
> |
lasty[x].z = lastx.z = newpos.z; |
630 |
|
} |
631 |
|
} |
632 |
|
|
633 |
|
|
634 |
< |
addpixel(p0, p1, p2, pix, z) /* fill in pixel parallelogram */ |
635 |
< |
struct position *p0, *p1, *p2; |
636 |
< |
COLR pix; |
637 |
< |
double z; |
634 |
> |
static void |
635 |
> |
addpixel( /* fill in pixel parallelogram */ |
636 |
> |
struct position *p0, |
637 |
> |
struct position *p1, |
638 |
> |
struct position *p2, |
639 |
> |
COLR pix, |
640 |
> |
double w, |
641 |
> |
double z |
642 |
> |
) |
643 |
|
{ |
644 |
|
double zt = 2.*zeps*p0->z; /* threshold */ |
645 |
+ |
COLOR pval; /* converted+weighted pixel */ |
646 |
|
int s1x, s1y, s2x, s2y; /* step sizes */ |
647 |
|
int l1, l2, c1, c2; /* side lengths and counters */ |
648 |
|
int p1isy; /* p0p1 along y? */ |
650 |
|
register int x, y; /* final position */ |
651 |
|
|
652 |
|
/* compute vector p0p1 */ |
653 |
< |
if (fill&F_FORE && ABS(p1->z-p0->z) <= zt) { |
653 |
> |
if (fillo&F_FORE && ABS(p1->z-p0->z) <= zt) { |
654 |
|
s1x = p1->x - p0->x; |
655 |
|
s1y = p1->y - p0->y; |
656 |
|
l1 = ABS(s1x); |
657 |
< |
if (p1isy = (ABS(s1y) > l1)) |
657 |
> |
if ( (p1isy = (ABS(s1y) > l1)) ) |
658 |
|
l1 = ABS(s1y); |
659 |
+ |
else if (l1 < 1) |
660 |
+ |
l1 = 1; |
661 |
|
} else { |
662 |
|
l1 = s1x = s1y = 1; |
663 |
|
p1isy = -1; |
664 |
|
} |
665 |
|
/* compute vector p0p2 */ |
666 |
< |
if (fill&F_FORE && ABS(p2->z-p0->z) <= zt) { |
666 |
> |
if (fillo&F_FORE && ABS(p2->z-p0->z) <= zt) { |
667 |
|
s2x = p2->x - p0->x; |
668 |
|
s2y = p2->y - p0->y; |
669 |
|
if (p1isy == 1) |
673 |
|
if (p1isy != 0 && ABS(s2x) > l2) |
674 |
|
l2 = ABS(s2x); |
675 |
|
} |
676 |
+ |
if (l2 < 1) |
677 |
+ |
l2 = 1; |
678 |
|
} else |
679 |
|
l2 = s2x = s2y = 1; |
680 |
|
/* fill the parallelogram */ |
681 |
+ |
if (averaging) { |
682 |
+ |
colr_color(pval, pix); |
683 |
+ |
scalecolor(pval, w); |
684 |
+ |
} |
685 |
|
for (c1 = l1; c1-- > 0; ) { |
686 |
|
x1 = p0->x + c1*s1x/l1; |
687 |
|
y1 = p0->y + c1*s1y/l1; |
688 |
|
for (c2 = l2; c2-- > 0; ) { |
689 |
|
x = x1 + c2*s2x/l2; |
690 |
+ |
if ((x < 0) | (x >= hresolu)) |
691 |
+ |
continue; |
692 |
|
y = y1 + c2*s2y/l2; |
693 |
< |
if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
693 |
> |
if ((y < 0) | (y >= vresolu)) |
694 |
> |
continue; |
695 |
> |
if (averaging) { |
696 |
> |
if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
697 |
|
> zeps*zscan(y)[x]) { |
698 |
< |
zscan(y)[x] = z; |
698 |
> |
copycolor(sscan(y)[x], pval); |
699 |
> |
wscan(y)[x] = w; |
700 |
> |
zscan(y)[x] = z; |
701 |
> |
} else if (z-zscan(y)[x] <= zeps*zscan(y)[x]) { |
702 |
> |
addcolor(sscan(y)[x], pval); |
703 |
> |
wscan(y)[x] += w; |
704 |
> |
} |
705 |
> |
} else if (zscan(y)[x] <= 0 || zscan(y)[x]-z |
706 |
> |
> zeps*zscan(y)[x]) { |
707 |
|
copycolr(pscan(y)[x], pix); |
708 |
+ |
zscan(y)[x] = z; |
709 |
|
} |
710 |
|
} |
711 |
|
} |
712 |
|
} |
713 |
|
|
714 |
|
|
715 |
< |
backpicture() /* background fill algorithm */ |
715 |
> |
static double |
716 |
> |
movepixel( /* reposition image point */ |
717 |
> |
register FVECT pos |
718 |
> |
) |
719 |
|
{ |
720 |
+ |
FVECT pt, tdir, odir; |
721 |
+ |
double d; |
722 |
+ |
|
723 |
+ |
if (pos[2] <= 0) /* empty pixel */ |
724 |
+ |
return(0); |
725 |
+ |
if (usematrix) { |
726 |
+ |
pos[0] += theirview.hoff - .5; |
727 |
+ |
pos[1] += theirview.voff - .5; |
728 |
+ |
if (normdist & (theirview.type == VT_PER)) |
729 |
+ |
d = sqrt(1. + pos[0]*pos[0]*theirview.hn2 |
730 |
+ |
+ pos[1]*pos[1]*theirview.vn2); |
731 |
+ |
else |
732 |
+ |
d = 1.; |
733 |
+ |
pos[2] += d*theirview.vfore; |
734 |
+ |
if (theirview.type == VT_PER) { |
735 |
+ |
pos[2] /= d; |
736 |
+ |
pos[0] *= pos[2]; |
737 |
+ |
pos[1] *= pos[2]; |
738 |
+ |
} |
739 |
+ |
multp3(pos, pos, theirs2ours); |
740 |
+ |
if (pos[2] <= ourview.vfore) |
741 |
+ |
return(0); |
742 |
+ |
if (ourview.type == VT_PER) { |
743 |
+ |
pos[0] /= pos[2]; |
744 |
+ |
pos[1] /= pos[2]; |
745 |
+ |
} |
746 |
+ |
pos[0] += .5 - ourview.hoff; |
747 |
+ |
pos[1] += .5 - ourview.voff; |
748 |
+ |
pos[2] -= ourview.vfore; |
749 |
+ |
} else { |
750 |
+ |
if (viewray(pt, tdir, &theirview, pos[0], pos[1]) < -FTINY) |
751 |
+ |
return(0); |
752 |
+ |
if ((!normdist) & (theirview.type == VT_PER)) /* adjust */ |
753 |
+ |
pos[2] *= sqrt(1. + pos[0]*pos[0]*theirview.hn2 |
754 |
+ |
+ pos[1]*pos[1]*theirview.vn2); |
755 |
+ |
pt[0] += tdir[0]*pos[2]; |
756 |
+ |
pt[1] += tdir[1]*pos[2]; |
757 |
+ |
pt[2] += tdir[2]*pos[2]; |
758 |
+ |
viewloc(pos, &ourview, pt); |
759 |
+ |
if (pos[2] <= 0) |
760 |
+ |
return(0); |
761 |
+ |
} |
762 |
+ |
if ((pos[0] < 0) | (pos[0] >= 1-FTINY) | (pos[1] < 0) | (pos[1] >= 1-FTINY)) |
763 |
+ |
return(0); |
764 |
+ |
if (!averaging) |
765 |
+ |
return(1); |
766 |
+ |
/* compute pixel weight */ |
767 |
+ |
if (ourview.type == VT_PAR) { |
768 |
+ |
d = DOT(ourview.vdir,tdir); |
769 |
+ |
d = 1. - d*d; |
770 |
+ |
} else { |
771 |
+ |
VSUB(odir, pt, ourview.vp); |
772 |
+ |
d = DOT(odir,tdir); |
773 |
+ |
d = 1. - d*d/DOT(odir,odir); |
774 |
+ |
} |
775 |
+ |
if (d <= 1./MAXWT/MAXWT) |
776 |
+ |
return(MAXWT); /* clip to maximum weight */ |
777 |
+ |
return(1./sqrt(d)); |
778 |
+ |
} |
779 |
+ |
|
780 |
+ |
|
781 |
+ |
static int |
782 |
+ |
getperim( /* compute overlapping image area */ |
783 |
+ |
register struct bound *xl, |
784 |
+ |
struct bound *yl, |
785 |
+ |
float *zline, |
786 |
+ |
int zfd |
787 |
+ |
) |
788 |
+ |
{ |
789 |
+ |
int step; |
790 |
+ |
FVECT pos; |
791 |
+ |
register int x, y; |
792 |
+ |
/* set up step size */ |
793 |
+ |
if (scanlen(&tresolu) < numscans(&tresolu)) |
794 |
+ |
step = scanlen(&tresolu)/NSTEPS; |
795 |
+ |
else |
796 |
+ |
step = numscans(&tresolu)/NSTEPS; |
797 |
+ |
if (step < MINSTEP) { /* not worth cropping? */ |
798 |
+ |
yl->min = 0; |
799 |
+ |
yl->max = numscans(&tresolu) - 1; |
800 |
+ |
x = scanlen(&tresolu) - 1; |
801 |
+ |
for (y = numscans(&tresolu); y--; ) { |
802 |
+ |
xl[y].min = 0; |
803 |
+ |
xl[y].max = x; |
804 |
+ |
} |
805 |
+ |
return(1); |
806 |
+ |
} |
807 |
+ |
yl->min = 32000; yl->max = 0; /* search for points on image */ |
808 |
+ |
for (y = step - 1; y < numscans(&tresolu); y += step) { |
809 |
+ |
if (zfd != -1) { |
810 |
+ |
if (lseek(zfd, (off_t)y*scanlen(&tresolu)*sizeof(float), |
811 |
+ |
SEEK_SET) < 0) |
812 |
+ |
syserror("lseek"); |
813 |
+ |
if (read(zfd, (char *)zline, |
814 |
+ |
scanlen(&tresolu)*sizeof(float)) |
815 |
+ |
< scanlen(&tresolu)*sizeof(float)) |
816 |
+ |
syserror("read"); |
817 |
+ |
} |
818 |
+ |
xl[y].min = 32000; xl[y].max = 0; /* x max */ |
819 |
+ |
for (x = scanlen(&tresolu); (x -= step) > 0; ) { |
820 |
+ |
pix2loc(pos, &tresolu, x, y); |
821 |
+ |
pos[2] = zline[x]; |
822 |
+ |
if (movepixel(pos) > FTINY) { |
823 |
+ |
xl[y].max = x + step - 1; |
824 |
+ |
xl[y].min = x - step + 1; /* x min */ |
825 |
+ |
if (xl[y].min < 0) |
826 |
+ |
xl[y].min = 0; |
827 |
+ |
for (x = step - 1; x < xl[y].max; x += step) { |
828 |
+ |
pix2loc(pos, &tresolu, x, y); |
829 |
+ |
pos[2] = zline[x]; |
830 |
+ |
if (movepixel(pos) > FTINY) { |
831 |
+ |
xl[y].min = x - step + 1; |
832 |
+ |
break; |
833 |
+ |
} |
834 |
+ |
} |
835 |
+ |
if (y < yl->min) /* y limits */ |
836 |
+ |
yl->min = y - step + 1; |
837 |
+ |
yl->max = y + step - 1; |
838 |
+ |
break; |
839 |
+ |
} |
840 |
+ |
} |
841 |
+ |
/* fill in between */ |
842 |
+ |
if (y < step) { |
843 |
+ |
xl[y-1].min = xl[y].min; |
844 |
+ |
xl[y-1].max = xl[y].max; |
845 |
+ |
} else { |
846 |
+ |
if (xl[y].min < xl[y-step].min) |
847 |
+ |
xl[y-1].min = xl[y].min; |
848 |
+ |
else |
849 |
+ |
xl[y-1].min = xl[y-step].min; |
850 |
+ |
if (xl[y].max > xl[y-step].max) |
851 |
+ |
xl[y-1].max = xl[y].max; |
852 |
+ |
else |
853 |
+ |
xl[y-1].max = xl[y-step].max; |
854 |
+ |
} |
855 |
+ |
for (x = 2; x < step; x++) |
856 |
+ |
*(xl+y-x) = *(xl+y-1); |
857 |
+ |
} |
858 |
+ |
if (yl->max >= numscans(&tresolu)) |
859 |
+ |
yl->max = numscans(&tresolu) - 1; |
860 |
+ |
y -= step; |
861 |
+ |
for (x = numscans(&tresolu) - 1; x > y; x--) /* fill bottom rows */ |
862 |
+ |
*(xl+x) = *(xl+y); |
863 |
+ |
return(yl->max >= yl->min); |
864 |
+ |
} |
865 |
+ |
|
866 |
+ |
|
867 |
+ |
static void |
868 |
+ |
backpicture( /* background fill algorithm */ |
869 |
+ |
fillfunc_t *fill, |
870 |
+ |
int samp |
871 |
+ |
) |
872 |
+ |
{ |
873 |
|
int *yback, xback; |
874 |
|
int y; |
477 |
– |
COLR pfill; |
875 |
|
register int x, i; |
876 |
|
/* get back buffer */ |
877 |
< |
yback = (int *)malloc(ourview.hresolu*sizeof(int)); |
877 |
> |
yback = (int *)malloc(hresolu*sizeof(int)); |
878 |
|
if (yback == NULL) |
879 |
< |
syserror(); |
880 |
< |
for (x = 0; x < ourview.hresolu; x++) |
879 |
> |
syserror(progname); |
880 |
> |
for (x = 0; x < hresolu; x++) |
881 |
|
yback[x] = -2; |
882 |
|
/* |
883 |
|
* Xback and yback are the pixel locations of suitable |
886 |
|
* that there is no suitable background in this direction. |
887 |
|
*/ |
888 |
|
/* fill image */ |
889 |
< |
for (y = 0; y < ourview.vresolu; y++) { |
889 |
> |
for (y = 0; y < vresolu; y++) { |
890 |
|
xback = -2; |
891 |
< |
for (x = 0; x < ourview.hresolu; x++) |
891 |
> |
for (x = 0; x < hresolu; x++) |
892 |
|
if (zscan(y)[x] <= 0) { /* empty pixel */ |
893 |
|
/* |
894 |
|
* First, find background from above or below. |
895 |
|
* (farthest assigned pixel) |
896 |
|
*/ |
897 |
|
if (yback[x] == -2) { |
898 |
< |
for (i = y+1; i < ourview.vresolu; i++) |
898 |
> |
for (i = y+1; i < vresolu; i++) |
899 |
|
if (zscan(i)[x] > 0) |
900 |
|
break; |
901 |
< |
if (i < ourview.vresolu |
901 |
> |
if (i < vresolu |
902 |
|
&& (y <= 0 || zscan(y-1)[x] < zscan(i)[x])) |
903 |
|
yback[x] = i; |
904 |
|
else |
908 |
|
* Next, find background from left or right. |
909 |
|
*/ |
910 |
|
if (xback == -2) { |
911 |
< |
for (i = x+1; i < ourview.hresolu; i++) |
911 |
> |
for (i = x+1; i < hresolu; i++) |
912 |
|
if (zscan(y)[i] > 0) |
913 |
|
break; |
914 |
< |
if (i < ourview.hresolu |
914 |
> |
if (i < hresolu |
915 |
|
&& (x <= 0 || zscan(y)[x-1] < zscan(y)[i])) |
916 |
|
xback = i; |
917 |
|
else |
918 |
|
xback = x-1; |
919 |
|
} |
920 |
|
/* |
921 |
< |
* Check to see if we have no background for |
922 |
< |
* this pixel. If not, use background color. |
921 |
> |
* If we have no background for this pixel, |
922 |
> |
* use the given fill function. |
923 |
|
*/ |
924 |
< |
if (xback < 0 && yback[x] < 0) { |
925 |
< |
(*deffill)(x,y); |
529 |
< |
continue; |
530 |
< |
} |
924 |
> |
if (xback < 0 && yback[x] < 0) |
925 |
> |
goto fillit; |
926 |
|
/* |
927 |
|
* Compare, and use the background that is |
928 |
|
* farther, unless one of them is next to us. |
929 |
+ |
* If the background is too distant, call |
930 |
+ |
* the fill function. |
931 |
|
*/ |
932 |
|
if ( yback[x] < 0 |
933 |
|
|| (xback >= 0 && ABS(x-xback) <= 1) |
934 |
|
|| ( ABS(y-yback[x]) > 1 |
935 |
|
&& zscan(yback[x])[x] |
936 |
|
< zscan(y)[xback] ) ) { |
937 |
< |
copycolr(pscan(y)[x],pscan(y)[xback]); |
937 |
> |
if (samp > 0 && ABS(x-xback) >= samp) |
938 |
> |
goto fillit; |
939 |
> |
if (averaging) { |
940 |
> |
copycolor(sscan(y)[x], |
941 |
> |
sscan(y)[xback]); |
942 |
> |
wscan(y)[x] = wscan(y)[xback]; |
943 |
> |
} else |
944 |
> |
copycolr(pscan(y)[x], |
945 |
> |
pscan(y)[xback]); |
946 |
|
zscan(y)[x] = zscan(y)[xback]; |
947 |
|
} else { |
948 |
< |
copycolr(pscan(y)[x],pscan(yback[x])[x]); |
948 |
> |
if (samp > 0 && ABS(y-yback[x]) > samp) |
949 |
> |
goto fillit; |
950 |
> |
if (averaging) { |
951 |
> |
copycolor(sscan(y)[x], |
952 |
> |
sscan(yback[x])[x]); |
953 |
> |
wscan(y)[x] = |
954 |
> |
wscan(yback[x])[x]; |
955 |
> |
} else |
956 |
> |
copycolr(pscan(y)[x], |
957 |
> |
pscan(yback[x])[x]); |
958 |
|
zscan(y)[x] = zscan(yback[x])[x]; |
959 |
|
} |
960 |
+ |
continue; |
961 |
+ |
fillit: |
962 |
+ |
(*fill)(x,y); |
963 |
+ |
if (fill == rcalfill) { /* use it */ |
964 |
+ |
clearqueue(); |
965 |
+ |
xback = x; |
966 |
+ |
yback[x] = y; |
967 |
+ |
} |
968 |
|
} else { /* full pixel */ |
969 |
|
yback[x] = -2; |
970 |
|
xback = -2; |
971 |
|
} |
972 |
|
} |
973 |
< |
free((char *)yback); |
973 |
> |
free((void *)yback); |
974 |
|
} |
975 |
|
|
976 |
|
|
977 |
< |
fillpicture() /* paint in empty pixels with default */ |
977 |
> |
static void |
978 |
> |
fillpicture( /* paint in empty pixels using fill */ |
979 |
> |
fillfunc_t *fill |
980 |
> |
) |
981 |
|
{ |
982 |
|
register int x, y; |
983 |
|
|
984 |
< |
for (y = 0; y < ourview.vresolu; y++) |
985 |
< |
for (x = 0; x < ourview.hresolu; x++) |
984 |
> |
for (y = 0; y < vresolu; y++) |
985 |
> |
for (x = 0; x < hresolu; x++) |
986 |
|
if (zscan(y)[x] <= 0) |
987 |
< |
(*deffill)(x,y); |
987 |
> |
(*fill)(x,y); |
988 |
> |
if (fill == rcalfill) |
989 |
> |
clearqueue(); |
990 |
|
} |
991 |
|
|
992 |
|
|
993 |
< |
writepicture() /* write out picture */ |
993 |
> |
static int |
994 |
> |
clipaft(void) /* perform aft clipping as indicated */ |
995 |
|
{ |
996 |
+ |
register int x, y; |
997 |
+ |
int adjtest = (ourview.type == VT_PER) & zisnorm; |
998 |
+ |
double tstdist; |
999 |
+ |
double yzn2, vx; |
1000 |
+ |
|
1001 |
+ |
if (ourview.vaft <= FTINY) |
1002 |
+ |
return(0); |
1003 |
+ |
tstdist = ourview.vaft - ourview.vfore; |
1004 |
+ |
for (y = 0; y < vresolu; y++) { |
1005 |
+ |
if (adjtest) { /* adjust test */ |
1006 |
+ |
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
1007 |
+ |
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
1008 |
+ |
tstdist = (ourview.vaft - ourview.vfore)*sqrt(yzn2); |
1009 |
+ |
} |
1010 |
+ |
for (x = 0; x < hresolu; x++) |
1011 |
+ |
if (zscan(y)[x] > tstdist) { |
1012 |
+ |
if (adjtest) { |
1013 |
+ |
vx = (x+.5)/hresolu + ourview.hoff - .5; |
1014 |
+ |
if (zscan(y)[x] <= (ourview.vaft - |
1015 |
+ |
ourview.vfore) * |
1016 |
+ |
sqrt(vx*vx*ourview.hn2 + yzn2)) |
1017 |
+ |
continue; |
1018 |
+ |
} |
1019 |
+ |
if (averaging) |
1020 |
+ |
memset(sscan(y)[x], '\0', sizeof(COLOR)); |
1021 |
+ |
else |
1022 |
+ |
memset(pscan(y)[x], '\0', sizeof(COLR)); |
1023 |
+ |
zscan(y)[x] = 0.0; |
1024 |
+ |
} |
1025 |
+ |
} |
1026 |
+ |
return(1); |
1027 |
+ |
} |
1028 |
+ |
|
1029 |
+ |
|
1030 |
+ |
static int |
1031 |
+ |
addblur(void) /* add to blurred picture */ |
1032 |
+ |
{ |
1033 |
+ |
COLOR cval; |
1034 |
+ |
double d; |
1035 |
+ |
register int i; |
1036 |
+ |
|
1037 |
+ |
if (!blurring) |
1038 |
+ |
return(0); |
1039 |
+ |
i = hresolu*vresolu; |
1040 |
+ |
if (nvavg < 2) |
1041 |
+ |
if (averaging) |
1042 |
+ |
while (i--) { |
1043 |
+ |
copycolor(ourbpict[i], ourspict[i]); |
1044 |
+ |
d = 1.0/ourweigh[i]; |
1045 |
+ |
scalecolor(ourbpict[i], d); |
1046 |
+ |
} |
1047 |
+ |
else |
1048 |
+ |
while (i--) |
1049 |
+ |
colr_color(ourbpict[i], ourpict[i]); |
1050 |
+ |
else |
1051 |
+ |
if (averaging) |
1052 |
+ |
while (i--) { |
1053 |
+ |
copycolor(cval, ourspict[i]); |
1054 |
+ |
d = 1.0/ourweigh[i]; |
1055 |
+ |
scalecolor(cval, d); |
1056 |
+ |
addcolor(ourbpict[i], cval); |
1057 |
+ |
} |
1058 |
+ |
else |
1059 |
+ |
while (i--) { |
1060 |
+ |
colr_color(cval, ourpict[i]); |
1061 |
+ |
addcolor(ourbpict[i], cval); |
1062 |
+ |
} |
1063 |
+ |
/* print view */ |
1064 |
+ |
printf("VIEW%d:", nvavg); |
1065 |
+ |
fprintview(&ourview, stdout); |
1066 |
+ |
putchar('\n'); |
1067 |
+ |
return(1); |
1068 |
+ |
} |
1069 |
+ |
|
1070 |
+ |
|
1071 |
+ |
static void |
1072 |
+ |
writepicture(void) /* write out picture (alters buffer) */ |
1073 |
+ |
{ |
1074 |
|
int y; |
1075 |
+ |
register int x; |
1076 |
+ |
double d; |
1077 |
|
|
1078 |
< |
fputresolu(YMAJOR|YDECR, ourview.hresolu, ourview.vresolu, stdout); |
1079 |
< |
for (y = ourview.vresolu-1; y >= 0; y--) |
1080 |
< |
if (fwritecolrs(pscan(y), ourview.hresolu, stdout) < 0) |
1081 |
< |
syserror(); |
1078 |
> |
fprtresolu(hresolu, vresolu, stdout); |
1079 |
> |
for (y = vresolu-1; y >= 0; y--) |
1080 |
> |
if (blurring) { |
1081 |
> |
for (x = 0; x < hresolu; x++) { /* compute avg. */ |
1082 |
> |
d = rexpadj/nvavg; |
1083 |
> |
scalecolor(bscan(y)[x], d); |
1084 |
> |
} |
1085 |
> |
if (fwritescan(bscan(y), hresolu, stdout) < 0) |
1086 |
> |
syserror(progname); |
1087 |
> |
} else if (averaging) { |
1088 |
> |
for (x = 0; x < hresolu; x++) { /* average pixels */ |
1089 |
> |
d = rexpadj/wscan(y)[x]; |
1090 |
> |
scalecolor(sscan(y)[x], d); |
1091 |
> |
} |
1092 |
> |
if (fwritescan(sscan(y), hresolu, stdout) < 0) |
1093 |
> |
syserror(progname); |
1094 |
> |
} else { |
1095 |
> |
if (expadj) |
1096 |
> |
shiftcolrs(pscan(y), hresolu, expadj); |
1097 |
> |
if (fwritecolrs(pscan(y), hresolu, stdout) < 0) |
1098 |
> |
syserror(progname); |
1099 |
> |
} |
1100 |
|
} |
1101 |
|
|
1102 |
|
|
1103 |
< |
writedistance(fname) /* write out z file */ |
1104 |
< |
char *fname; |
1103 |
> |
static void |
1104 |
> |
writedistance( /* write out z file (alters buffer) */ |
1105 |
> |
char *fname |
1106 |
> |
) |
1107 |
|
{ |
1108 |
< |
extern double sqrt(); |
1109 |
< |
int donorm = normdist && ourview.type == VT_PER; |
1110 |
< |
FILE *fp; |
1108 |
> |
int donorm = normdist & !zisnorm ? 1 : |
1109 |
> |
(ourview.type == VT_PER) & !normdist & zisnorm ? -1 : 0; |
1110 |
> |
int fd; |
1111 |
|
int y; |
584 |
– |
float *zout; |
1112 |
|
|
1113 |
< |
if ((fp = fopen(fname, "w")) == NULL) { |
1114 |
< |
perror(fname); |
1115 |
< |
exit(1); |
589 |
< |
} |
590 |
< |
if (donorm |
591 |
< |
&& (zout = (float *)malloc(ourview.hresolu*sizeof(float))) == NULL) |
592 |
< |
syserror(); |
593 |
< |
for (y = ourview.vresolu-1; y >= 0; y--) { |
1113 |
> |
if ((fd = open(fname, O_WRONLY|O_CREAT|O_TRUNC, 0666)) == -1) |
1114 |
> |
syserror(fname); |
1115 |
> |
for (y = vresolu-1; y >= 0; y--) { |
1116 |
|
if (donorm) { |
1117 |
< |
double vx, yzn2; |
1117 |
> |
double vx, yzn2, d; |
1118 |
|
register int x; |
1119 |
< |
yzn2 = y - .5*(ourview.vresolu-1); |
1120 |
< |
yzn2 = 1. + yzn2*yzn2*ourview.vvn2; |
1121 |
< |
for (x = 0; x < ourview.hresolu; x++) { |
1122 |
< |
vx = x - .5*(ourview.hresolu-1); |
1123 |
< |
zout[x] = zscan(y)[x] |
1124 |
< |
* sqrt(vx*vx*ourview.vhn2 + yzn2); |
1119 |
> |
yzn2 = (y+.5)/vresolu + ourview.voff - .5; |
1120 |
> |
yzn2 = 1. + yzn2*yzn2*ourview.vn2; |
1121 |
> |
for (x = 0; x < hresolu; x++) { |
1122 |
> |
vx = (x+.5)/hresolu + ourview.hoff - .5; |
1123 |
> |
d = sqrt(vx*vx*ourview.hn2 + yzn2); |
1124 |
> |
if (donorm > 0) |
1125 |
> |
zscan(y)[x] *= d; |
1126 |
> |
else |
1127 |
> |
zscan(y)[x] /= d; |
1128 |
|
} |
604 |
– |
} else |
605 |
– |
zout = zscan(y); |
606 |
– |
if (fwrite(zout, sizeof(float), ourview.hresolu, fp) |
607 |
– |
< ourview.hresolu) { |
608 |
– |
perror(fname); |
609 |
– |
exit(1); |
1129 |
|
} |
1130 |
+ |
if (write(fd, (char *)zscan(y), hresolu*sizeof(float)) |
1131 |
+ |
< hresolu*sizeof(float)) |
1132 |
+ |
syserror(fname); |
1133 |
|
} |
1134 |
< |
if (donorm) |
613 |
< |
free((char *)zout); |
614 |
< |
fclose(fp); |
1134 |
> |
close(fd); |
1135 |
|
} |
1136 |
|
|
1137 |
|
|
1138 |
< |
isfloat(s) /* see if string is floating number */ |
1139 |
< |
register char *s; |
1138 |
> |
static void |
1139 |
> |
backfill( /* fill pixel with background */ |
1140 |
> |
int x, |
1141 |
> |
int y |
1142 |
> |
) |
1143 |
|
{ |
1144 |
< |
for ( ; *s; s++) |
1145 |
< |
if ((*s < '0' || *s > '9') && *s != '.' && *s != '-' |
1146 |
< |
&& *s != 'e' && *s != 'E' && *s != '+') |
1147 |
< |
return(0); |
1148 |
< |
return(1); |
626 |
< |
} |
627 |
< |
|
628 |
< |
|
629 |
< |
backfill(x, y) /* fill pixel with background */ |
630 |
< |
int x, y; |
631 |
< |
{ |
632 |
< |
register BYTE *dest = pscan(y)[x]; |
633 |
< |
|
634 |
< |
copycolr(dest, backcolr); |
1144 |
> |
if (averaging) { |
1145 |
> |
copycolor(sscan(y)[x], backcolor); |
1146 |
> |
wscan(y)[x] = 1; |
1147 |
> |
} else |
1148 |
> |
copycolr(pscan(y)[x], backcolr); |
1149 |
|
zscan(y)[x] = backz; |
1150 |
|
} |
1151 |
|
|
1152 |
|
|
1153 |
< |
calstart(prog, args) /* start fill calculation */ |
1154 |
< |
char *prog, *args; |
1153 |
> |
static void |
1154 |
> |
calstart( /* start fill calculation */ |
1155 |
> |
char *prog, |
1156 |
> |
char *args |
1157 |
> |
) |
1158 |
|
{ |
1159 |
|
char combuf[512]; |
1160 |
< |
int p0[2], p1[2]; |
1160 |
> |
char *argv[64]; |
1161 |
> |
int rval; |
1162 |
> |
register char **wp, *cp; |
1163 |
|
|
1164 |
< |
if (childpid != -1) { |
1164 |
> |
if (PDesc.running) { |
1165 |
|
fprintf(stderr, "%s: too many calculations\n", progname); |
1166 |
|
exit(1); |
1167 |
|
} |
1168 |
< |
sprintf(combuf, prog, PACKSIZ, args); |
1169 |
< |
if (pipe(p0) < 0 || pipe(p1) < 0) |
1170 |
< |
syserror(); |
1171 |
< |
if ((childpid = vfork()) == 0) { /* fork calculation */ |
1172 |
< |
close(p0[1]); |
1173 |
< |
close(p1[0]); |
1174 |
< |
if (p0[0] != 0) { |
1175 |
< |
dup2(p0[0], 0); |
1176 |
< |
close(p0[0]); |
1177 |
< |
} |
1178 |
< |
if (p1[1] != 1) { |
1179 |
< |
dup2(p1[1], 1); |
661 |
< |
close(p1[1]); |
662 |
< |
} |
663 |
< |
execl("/bin/sh", "sh", "-c", combuf, 0); |
664 |
< |
perror("/bin/sh"); |
665 |
< |
_exit(127); |
1168 |
> |
strcpy(combuf, prog); |
1169 |
> |
strcat(combuf, args); |
1170 |
> |
cp = combuf; |
1171 |
> |
wp = argv; |
1172 |
> |
for ( ; ; ) { |
1173 |
> |
while (isspace(*cp)) /* nullify spaces */ |
1174 |
> |
*cp++ = '\0'; |
1175 |
> |
if (!*cp) /* all done? */ |
1176 |
> |
break; |
1177 |
> |
*wp++ = cp; /* add argument to list */ |
1178 |
> |
while (*++cp && !isspace(*cp)) |
1179 |
> |
; |
1180 |
|
} |
1181 |
< |
if (childpid == -1) |
1182 |
< |
syserror(); |
1183 |
< |
close(p0[0]); |
1184 |
< |
close(p1[1]); |
1185 |
< |
if ((psend = fdopen(p0[1], "w")) == NULL) |
1186 |
< |
syserror(); |
1187 |
< |
if ((precv = fdopen(p1[0], "r")) == NULL) |
1188 |
< |
syserror(); |
1181 |
> |
*wp = NULL; |
1182 |
> |
/* start process */ |
1183 |
> |
if ((rval = open_process(&PDesc, argv)) < 0) |
1184 |
> |
syserror(progname); |
1185 |
> |
if (rval == 0) { |
1186 |
> |
fprintf(stderr, "%s: command not found\n", argv[0]); |
1187 |
> |
exit(1); |
1188 |
> |
} |
1189 |
> |
packsiz = rval/(6*sizeof(float)) - 1; |
1190 |
> |
if (packsiz > PACKSIZ) |
1191 |
> |
packsiz = PACKSIZ; |
1192 |
|
queuesiz = 0; |
1193 |
|
} |
1194 |
|
|
1195 |
|
|
1196 |
< |
caldone() /* done with calculation */ |
1196 |
> |
static void |
1197 |
> |
caldone(void) /* done with calculation */ |
1198 |
|
{ |
1199 |
< |
int pid; |
682 |
< |
|
683 |
< |
if (childpid == -1) |
1199 |
> |
if (!PDesc.running) |
1200 |
|
return; |
685 |
– |
if (fclose(psend) == EOF) |
686 |
– |
syserror(); |
1201 |
|
clearqueue(); |
1202 |
< |
fclose(precv); |
689 |
< |
while ((pid = wait(0)) != -1 && pid != childpid) |
690 |
< |
; |
691 |
< |
childpid = -1; |
1202 |
> |
close_process(&PDesc); |
1203 |
|
} |
1204 |
|
|
1205 |
|
|
1206 |
< |
rcalfill(x, y) /* fill with ray-calculated pixel */ |
1207 |
< |
int x, y; |
1206 |
> |
static void |
1207 |
> |
rcalfill( /* fill with ray-calculated pixel */ |
1208 |
> |
int x, |
1209 |
> |
int y |
1210 |
> |
) |
1211 |
|
{ |
1212 |
< |
FVECT orig, dir; |
699 |
< |
float outbuf[6]; |
700 |
< |
|
701 |
< |
if (queuesiz >= PACKSIZ) { /* flush queue */ |
702 |
< |
if (fflush(psend) == EOF) |
703 |
< |
syserror(); |
1212 |
> |
if (queuesiz >= packsiz) /* flush queue if needed */ |
1213 |
|
clearqueue(); |
1214 |
< |
} |
706 |
< |
/* send new ray */ |
707 |
< |
rayview(orig, dir, &ourview, x+.5, y+.5); |
708 |
< |
outbuf[0] = orig[0]; outbuf[1] = orig[1]; outbuf[2] = orig[2]; |
709 |
< |
outbuf[3] = dir[0]; outbuf[4] = dir[1]; outbuf[5] = dir[2]; |
710 |
< |
if (fwrite(outbuf, sizeof(float), 6, psend) < 6) |
711 |
< |
syserror(); |
712 |
< |
/* remember it */ |
1214 |
> |
/* add position to queue */ |
1215 |
|
queue[queuesiz][0] = x; |
1216 |
|
queue[queuesiz][1] = y; |
1217 |
|
queuesiz++; |
1218 |
|
} |
1219 |
|
|
1220 |
|
|
1221 |
< |
clearqueue() /* get results from queue */ |
1221 |
> |
static void |
1222 |
> |
clearqueue(void) /* process queue */ |
1223 |
|
{ |
1224 |
< |
float inbuf[4]; |
1224 |
> |
FVECT orig, dir; |
1225 |
> |
float fbuf[6*(PACKSIZ+1)]; |
1226 |
> |
register float *fbp; |
1227 |
|
register int i; |
1228 |
+ |
double vx, vy; |
1229 |
|
|
1230 |
+ |
if (queuesiz == 0) |
1231 |
+ |
return; |
1232 |
+ |
fbp = fbuf; |
1233 |
|
for (i = 0; i < queuesiz; i++) { |
1234 |
< |
if (fread(inbuf, sizeof(float), 4, precv) < 4) { |
1235 |
< |
fprintf(stderr, "%s: read error in clearqueue\n", |
1236 |
< |
progname); |
1237 |
< |
exit(1); |
1238 |
< |
} |
1234 |
> |
viewray(orig, dir, &ourview, |
1235 |
> |
(queue[i][0]+.5)/hresolu, |
1236 |
> |
(queue[i][1]+.5)/vresolu); |
1237 |
> |
*fbp++ = orig[0]; *fbp++ = orig[1]; *fbp++ = orig[2]; |
1238 |
> |
*fbp++ = dir[0]; *fbp++ = dir[1]; *fbp++ = dir[2]; |
1239 |
> |
} |
1240 |
> |
/* mark end and get results */ |
1241 |
> |
memset((char *)fbp, '\0', 6*sizeof(float)); |
1242 |
> |
if (process(&PDesc, (char *)fbuf, (char *)fbuf, |
1243 |
> |
4*sizeof(float)*(queuesiz+1), |
1244 |
> |
6*sizeof(float)*(queuesiz+1)) != |
1245 |
> |
4*sizeof(float)*(queuesiz+1)) { |
1246 |
> |
fprintf(stderr, "%s: error reading from rtrace process\n", |
1247 |
> |
progname); |
1248 |
> |
exit(1); |
1249 |
> |
} |
1250 |
> |
fbp = fbuf; |
1251 |
> |
for (i = 0; i < queuesiz; i++) { |
1252 |
|
if (ourexp > 0 && ourexp != 1.0) { |
1253 |
< |
inbuf[0] *= ourexp; |
1254 |
< |
inbuf[1] *= ourexp; |
1255 |
< |
inbuf[2] *= ourexp; |
1253 |
> |
fbp[0] *= ourexp; |
1254 |
> |
fbp[1] *= ourexp; |
1255 |
> |
fbp[2] *= ourexp; |
1256 |
|
} |
1257 |
< |
setcolr(pscan(queue[i][1])[queue[i][0]], |
1258 |
< |
inbuf[0], inbuf[1], inbuf[2]); |
1259 |
< |
zscan(queue[i][1])[queue[i][0]] = inbuf[3]; |
1257 |
> |
if (averaging) { |
1258 |
> |
setcolor(sscan(queue[i][1])[queue[i][0]], |
1259 |
> |
fbp[0], fbp[1], fbp[2]); |
1260 |
> |
wscan(queue[i][1])[queue[i][0]] = 1; |
1261 |
> |
} else |
1262 |
> |
setcolr(pscan(queue[i][1])[queue[i][0]], |
1263 |
> |
fbp[0], fbp[1], fbp[2]); |
1264 |
> |
if (zisnorm) |
1265 |
> |
zscan(queue[i][1])[queue[i][0]] = fbp[3]; |
1266 |
> |
else { |
1267 |
> |
vx = (queue[i][0]+.5)/hresolu + ourview.hoff - .5; |
1268 |
> |
vy = (queue[i][1]+.5)/vresolu + ourview.voff - .5; |
1269 |
> |
zscan(queue[i][1])[queue[i][0]] = fbp[3] / sqrt(1. + |
1270 |
> |
vx*vx*ourview.hn2 + vy*vy*ourview.vn2); |
1271 |
> |
} |
1272 |
> |
fbp += 4; |
1273 |
|
} |
1274 |
|
queuesiz = 0; |
1275 |
|
} |
1276 |
|
|
1277 |
|
|
1278 |
< |
syserror() /* report error and exit */ |
1278 |
> |
static void |
1279 |
> |
syserror( /* report error and exit */ |
1280 |
> |
char *s |
1281 |
> |
) |
1282 |
|
{ |
1283 |
< |
perror(progname); |
1283 |
> |
perror(s); |
1284 |
|
exit(1); |
1285 |
|
} |