11 |
|
#include "standard.h" |
12 |
|
#include "cmatrix.h" |
13 |
|
#include "platform.h" |
14 |
+ |
#include "rtprocess.h" |
15 |
+ |
#include "resolu.h" |
16 |
|
|
17 |
+ |
const char *cm_fmt_id[] = { |
18 |
+ |
"unknown", "ascii", COLRFMT, CIEFMT, |
19 |
+ |
"float", "double" |
20 |
+ |
}; |
21 |
+ |
|
22 |
+ |
const int cm_elem_size[] = { |
23 |
+ |
0, 0, 3*sizeof(float), 3*sizeof(double), 4, 4 |
24 |
+ |
}; |
25 |
+ |
|
26 |
|
/* Allocate a color coefficient matrix */ |
27 |
|
CMATRIX * |
28 |
|
cm_alloc(int nrows, int ncols) |
32 |
|
if ((nrows <= 0) | (ncols <= 0)) |
33 |
|
error(USER, "attempt to create empty matrix"); |
34 |
|
cm = (CMATRIX *)malloc(sizeof(CMATRIX) + |
35 |
< |
3*sizeof(COLORV)*(nrows*ncols - 1)); |
35 |
> |
sizeof(COLOR)*(nrows*ncols - 1)); |
36 |
|
if (cm == NULL) |
37 |
|
error(SYSTEM, "out of memory in cm_alloc()"); |
38 |
|
cm->nrows = nrows; |
40 |
|
return(cm); |
41 |
|
} |
42 |
|
|
43 |
+ |
static void |
44 |
+ |
adjacent_ra_sizes(size_t bounds[2], size_t target) |
45 |
+ |
{ |
46 |
+ |
bounds[0] = 0; bounds[1] = 2048; |
47 |
+ |
while (bounds[1] < target) { |
48 |
+ |
bounds[0] = bounds[1]; |
49 |
+ |
bounds[1] += bounds[1]>>1; |
50 |
+ |
} |
51 |
+ |
} |
52 |
+ |
|
53 |
|
/* Resize color coefficient matrix */ |
54 |
|
CMATRIX * |
55 |
|
cm_resize(CMATRIX *cm, int nrows) |
56 |
|
{ |
57 |
+ |
size_t old_size, new_size, ra_bounds[2]; |
58 |
+ |
|
59 |
|
if (nrows == cm->nrows) |
60 |
|
return(cm); |
61 |
|
if (nrows <= 0) { |
62 |
|
cm_free(cm); |
63 |
|
return(NULL); |
64 |
|
} |
65 |
< |
cm = (CMATRIX *)realloc(cm, sizeof(CMATRIX) + |
66 |
< |
3*sizeof(COLORV)*(nrows*cm->ncols - 1)); |
67 |
< |
if (cm == NULL) |
68 |
< |
error(SYSTEM, "out of memory in cm_resize()"); |
65 |
> |
old_size = sizeof(CMATRIX) + sizeof(COLOR)*(cm->nrows*cm->ncols - 1); |
66 |
> |
adjacent_ra_sizes(ra_bounds, old_size); |
67 |
> |
new_size = sizeof(CMATRIX) + sizeof(COLOR)*(nrows*cm->ncols - 1); |
68 |
> |
if (nrows < cm->nrows ? new_size <= ra_bounds[0] : |
69 |
> |
new_size > ra_bounds[1]) { |
70 |
> |
adjacent_ra_sizes(ra_bounds, new_size); |
71 |
> |
cm = (CMATRIX *)realloc(cm, ra_bounds[1]); |
72 |
> |
if (cm == NULL) |
73 |
> |
error(SYSTEM, "out of memory in cm_resize()"); |
74 |
> |
} |
75 |
|
cm->nrows = nrows; |
76 |
|
return(cm); |
77 |
|
} |
78 |
|
|
79 |
+ |
typedef struct { |
80 |
+ |
int dtype; /* data type */ |
81 |
+ |
int nrows, ncols; /* matrix size */ |
82 |
+ |
char *err; /* error message */ |
83 |
+ |
} CMINFO; /* header info record */ |
84 |
+ |
|
85 |
|
static int |
86 |
< |
getDT(char *s, void *p) |
86 |
> |
get_cminfo(char *s, void *p) |
87 |
|
{ |
88 |
+ |
CMINFO *ip = (CMINFO *)p; |
89 |
|
char fmt[32]; |
90 |
< |
|
91 |
< |
if (formatval(fmt, s)) { |
92 |
< |
if (!strcmp(fmt, "ascii")) |
93 |
< |
*((int *)p) = DTascii; |
94 |
< |
else if (!strcmp(fmt, "float")) |
59 |
< |
*((int *)p) = DTfloat; |
60 |
< |
else if (!strcmp(fmt, "double")) |
61 |
< |
*((int *)p) = DTdouble; |
62 |
< |
else if (!strcmp(fmt, COLRFMT)) |
63 |
< |
*((int *)p) = DTrgbe; |
64 |
< |
else if (!strcmp(fmt, CIEFMT)) |
65 |
< |
*((int *)p) = DTxyze; |
90 |
> |
int i; |
91 |
> |
|
92 |
> |
if (!strncmp(s, "NCOMP=", 6) && atoi(s+6) != 3) { |
93 |
> |
ip->err = "unexpected # components (must be 3)"; |
94 |
> |
return(-1); |
95 |
|
} |
96 |
+ |
if (!strncmp(s, "NROWS=", 6)) { |
97 |
+ |
ip->nrows = atoi(s+6); |
98 |
+ |
return(0); |
99 |
+ |
} |
100 |
+ |
if (!strncmp(s, "NCOLS=", 6)) { |
101 |
+ |
ip->ncols = atoi(s+6); |
102 |
+ |
return(0); |
103 |
+ |
} |
104 |
+ |
if (!formatval(fmt, s)) |
105 |
+ |
return(0); |
106 |
+ |
for (i = 1; i < DTend; i++) |
107 |
+ |
if (!strcmp(fmt, cm_fmt_id[i])) |
108 |
+ |
ip->dtype = i; |
109 |
|
return(0); |
110 |
|
} |
111 |
|
|
112 |
< |
/* Load header to obtain data type */ |
113 |
< |
int |
114 |
< |
getDTfromHeader(FILE *fp) |
112 |
> |
/* Load header to obtain/check data type and number of columns */ |
113 |
> |
char * |
114 |
> |
cm_getheader(int *dt, int *nr, int *nc, FILE *fp) |
115 |
|
{ |
116 |
< |
int dt = DTfromHeader; |
117 |
< |
|
118 |
< |
if (getheader(fp, getDT, &dt) < 0) |
119 |
< |
error(SYSTEM, "header read error"); |
120 |
< |
if (dt == DTfromHeader) |
121 |
< |
error(USER, "missing data format in header"); |
122 |
< |
return(dt); |
116 |
> |
CMINFO cmi; |
117 |
> |
/* read header */ |
118 |
> |
cmi.dtype = DTfromHeader; |
119 |
> |
cmi.nrows = cmi.ncols = 0; |
120 |
> |
cmi.err = "unexpected EOF in header"; |
121 |
> |
if (getheader(fp, get_cminfo, &cmi) < 0) |
122 |
> |
return(cmi.err); |
123 |
> |
if (dt != NULL) { /* get/check data type? */ |
124 |
> |
if (cmi.dtype == DTfromHeader) { |
125 |
> |
if (*dt == DTfromHeader) |
126 |
> |
return("missing/unknown data format in header"); |
127 |
> |
} else if (*dt == DTfromHeader) |
128 |
> |
*dt = cmi.dtype; |
129 |
> |
else if (*dt != cmi.dtype) |
130 |
> |
return("unexpected data format in header"); |
131 |
> |
} |
132 |
> |
if (nr != NULL) { /* get/check #rows? */ |
133 |
> |
if (*nr <= 0) |
134 |
> |
*nr = cmi.nrows; |
135 |
> |
else if ((cmi.nrows > 0) & (*nr != cmi.nrows)) |
136 |
> |
return("unexpected row count in header"); |
137 |
> |
} |
138 |
> |
if (nc != NULL) { /* get/check #columns? */ |
139 |
> |
if (*nc <= 0) |
140 |
> |
*nc = cmi.ncols; |
141 |
> |
else if ((cmi.ncols > 0) & (*nc != cmi.ncols)) |
142 |
> |
return("unexpected column count in header"); |
143 |
> |
} |
144 |
> |
return(NULL); |
145 |
|
} |
146 |
|
|
147 |
< |
/* Allocate and load a matrix from the given file (or stdin if NULL) */ |
147 |
> |
/* Allocate and load a matrix from the given input (or stdin if NULL) */ |
148 |
|
CMATRIX * |
149 |
< |
cm_load(const char *fname, int nrows, int ncols, int dtype) |
149 |
> |
cm_load(const char *inspec, int nrows, int ncols, int dtype) |
150 |
|
{ |
151 |
|
FILE *fp = stdin; |
152 |
|
CMATRIX *cm; |
153 |
|
|
154 |
< |
if (ncols <= 0) |
155 |
< |
error(USER, "Non-positive number of columns"); |
156 |
< |
if (fname == NULL) |
157 |
< |
fname = "<stdin>"; |
158 |
< |
else if ((fp = fopen(fname, "r")) == NULL) { |
159 |
< |
sprintf(errmsg, "cannot open file '%s'", fname); |
154 |
> |
if (inspec == NULL) |
155 |
> |
inspec = "<stdin>"; |
156 |
> |
else if (inspec[0] == '!') { |
157 |
> |
fp = popen(inspec+1, "r"); |
158 |
> |
if (fp == NULL) { |
159 |
> |
sprintf(errmsg, "cannot start command '%s'", inspec); |
160 |
> |
error(SYSTEM, errmsg); |
161 |
> |
} |
162 |
> |
} else if ((fp = fopen(inspec, "r")) == NULL) { |
163 |
> |
sprintf(errmsg, "cannot open file '%s'", inspec); |
164 |
|
error(SYSTEM, errmsg); |
165 |
|
} |
166 |
|
#ifdef getc_unlocked |
168 |
|
#endif |
169 |
|
if (dtype != DTascii) |
170 |
|
SET_FILE_BINARY(fp); /* doesn't really work */ |
171 |
< |
if (dtype == DTfromHeader) |
172 |
< |
dtype = getDTfromHeader(fp); |
171 |
> |
if (!dtype | !ncols) { /* expecting header? */ |
172 |
> |
char *err = cm_getheader(&dtype, &nrows, &ncols, fp); |
173 |
> |
if (err != NULL) |
174 |
> |
error(USER, err); |
175 |
> |
if (ncols <= 0) |
176 |
> |
error(USER, "unspecified number of columns"); |
177 |
> |
} |
178 |
|
switch (dtype) { |
179 |
|
case DTascii: |
180 |
|
case DTfloat: |
185 |
|
} |
186 |
|
if (nrows <= 0) { /* don't know length? */ |
187 |
|
int guessrows = 147; /* usually big enough */ |
188 |
< |
if ((dtype != DTascii) & (fp != stdin)) { |
188 |
> |
if ((dtype != DTascii) & (fp != stdin) & (inspec[0] != '!')) { |
189 |
|
long startpos = ftell(fp); |
190 |
|
if (fseek(fp, 0L, SEEK_END) == 0) { |
191 |
|
long endpos = ftell(fp); |
195 |
|
if ((endpos - startpos) % (ncols*elemsiz)) { |
196 |
|
sprintf(errmsg, |
197 |
|
"improper length for binary file '%s'", |
198 |
< |
fname); |
198 |
> |
inspec); |
199 |
|
error(USER, errmsg); |
200 |
|
} |
201 |
|
guessrows = (endpos - startpos)/(ncols*elemsiz); |
202 |
|
if (fseek(fp, startpos, SEEK_SET) < 0) { |
203 |
|
sprintf(errmsg, |
204 |
|
"fseek() error on file '%s'", |
205 |
< |
fname); |
205 |
> |
inspec); |
206 |
|
error(SYSTEM, errmsg); |
207 |
|
} |
208 |
|
nrows = guessrows; /* we're confident */ |
232 |
|
while ((c = getc(fp)) != EOF) |
233 |
|
if (!isspace(c)) { |
234 |
|
sprintf(errmsg, |
235 |
< |
"unexpected data at end of ascii file %s", |
236 |
< |
fname); |
235 |
> |
"unexpected data at end of ascii input '%s'", |
236 |
> |
inspec); |
237 |
|
error(WARNING, errmsg); |
238 |
|
break; |
239 |
|
} |
240 |
|
} else { /* read binary file */ |
241 |
< |
if (sizeof(COLORV) == (dtype==DTfloat ? sizeof(float) : |
169 |
< |
sizeof(double))) { |
241 |
> |
if (sizeof(COLOR) == cm_elem_size[dtype]) { |
242 |
|
int nread = 0; |
243 |
|
do { /* read all we can */ |
244 |
|
nread += fread(cm->cmem + 3*nread, |
245 |
< |
3*sizeof(COLORV), |
245 |
> |
sizeof(COLOR), |
246 |
|
cm->nrows*cm->ncols - nread, |
247 |
|
fp); |
248 |
|
if (nrows <= 0) { /* unknown length */ |
287 |
|
} |
288 |
|
if (fgetc(fp) != EOF) { |
289 |
|
sprintf(errmsg, |
290 |
< |
"unexpected data at end of binary file %s", |
291 |
< |
fname); |
290 |
> |
"unexpected data at end of binary input '%s'", |
291 |
> |
inspec); |
292 |
|
error(WARNING, errmsg); |
293 |
|
} |
294 |
|
} |
295 |
< |
if (fp != stdin) |
296 |
< |
fclose(fp); |
295 |
> |
if (fp != stdin) { |
296 |
> |
if (inspec[0] != '!') |
297 |
> |
fclose(fp); |
298 |
> |
else if (pclose(fp)) { |
299 |
> |
sprintf(errmsg, "error running command '%s'", inspec); |
300 |
> |
error(WARNING, errmsg); |
301 |
> |
} |
302 |
> |
} |
303 |
|
#ifdef getc_unlocked |
304 |
|
else |
305 |
|
funlockfile(fp); |
306 |
|
#endif |
307 |
|
return(cm); |
308 |
|
EOFerror: |
309 |
< |
sprintf(errmsg, "unexpected EOF reading %s", fname); |
309 |
> |
sprintf(errmsg, "unexpected EOF reading %s", inspec); |
310 |
|
error(USER, errmsg); |
311 |
|
not_handled: |
312 |
|
error(INTERNAL, "unhandled data size or length in cm_load()"); |
390 |
|
for (dr = 0; dr < cmr->nrows; dr++) |
391 |
|
for (dc = 0; dc < cmr->ncols; dc++) { |
392 |
|
COLORV *dp = cm_lval(cmr,dr,dc); |
393 |
+ |
double res[3]; |
394 |
|
dp[0] = dp[1] = dp[2] = 0; |
395 |
|
if (rowcheck != NULL && !rowcheck[dr]) |
396 |
|
continue; |
397 |
|
if (colcheck != NULL && !colcheck[dc]) |
398 |
|
continue; |
399 |
+ |
res[0] = res[1] = res[2] = 0; |
400 |
|
for (i = 0; i < cm1->ncols; i++) { |
401 |
|
const COLORV *cp1 = cm_lval(cm1,dr,i); |
402 |
|
const COLORV *cp2 = cm_lval(cm2,i,dc); |
403 |
< |
dp[0] += cp1[0] * cp2[0]; |
404 |
< |
dp[1] += cp1[1] * cp2[1]; |
405 |
< |
dp[2] += cp1[2] * cp2[2]; |
403 |
> |
res[0] += cp1[0] * cp2[0]; |
404 |
> |
res[1] += cp1[1] * cp2[1]; |
405 |
> |
res[2] += cp1[2] * cp2[2]; |
406 |
|
} |
407 |
+ |
copycolor(dp, res); |
408 |
|
} |
409 |
|
if (rowcheck != NULL) free(rowcheck); |
410 |
|
if (colcheck != NULL) free(colcheck); |
411 |
|
return(cmr); |
412 |
|
} |
413 |
|
|
414 |
< |
/* print out matrix as ASCII text -- no header */ |
415 |
< |
void |
416 |
< |
cm_print(const CMATRIX *cm, FILE *fp) |
414 |
> |
/* write out matrix to file (precede by resolution string if picture) */ |
415 |
> |
int |
416 |
> |
cm_write(const CMATRIX *cm, int dtype, FILE *fp) |
417 |
|
{ |
418 |
< |
int r, c; |
419 |
< |
const COLORV *mp = cm->cmem; |
420 |
< |
|
421 |
< |
for (r = 0; r < cm->nrows; r++) { |
422 |
< |
for (c = 0; c < cm->ncols; c++, mp += 3) |
423 |
< |
fprintf(fp, "\t%.6e %.6e %.6e", mp[0], mp[1], mp[2]); |
424 |
< |
fputc('\n', fp); |
418 |
> |
static const char tabEOL[2] = {'\t','\n'}; |
419 |
> |
const COLORV *mp = cm->cmem; |
420 |
> |
int r, c; |
421 |
> |
|
422 |
> |
switch (dtype) { |
423 |
> |
case DTascii: |
424 |
> |
for (r = 0; r < cm->nrows; r++) |
425 |
> |
for (c = 0; c < cm->ncols; c++, mp += 3) |
426 |
> |
fprintf(fp, "%.6e %.6e %.6e%c", |
427 |
> |
mp[0], mp[1], mp[2], |
428 |
> |
tabEOL[c >= cm->ncols-1]); |
429 |
> |
break; |
430 |
> |
case DTfloat: |
431 |
> |
case DTdouble: |
432 |
> |
if (sizeof(COLOR) == cm_elem_size[dtype]) { |
433 |
> |
r = cm->ncols*cm->nrows; |
434 |
> |
while (r > 0) { |
435 |
> |
c = fwrite(mp, sizeof(COLOR), r, fp); |
436 |
> |
if (c <= 0) |
437 |
> |
return(0); |
438 |
> |
mp += 3*c; |
439 |
> |
r -= c; |
440 |
> |
} |
441 |
> |
} else if (dtype == DTdouble) { |
442 |
> |
double dc[3]; |
443 |
> |
r = cm->ncols*cm->nrows; |
444 |
> |
while (r--) { |
445 |
> |
copycolor(dc, mp); |
446 |
> |
if (fwrite(dc, sizeof(double), 3, fp) != 3) |
447 |
> |
return(0); |
448 |
> |
mp += 3; |
449 |
> |
} |
450 |
> |
} else /* dtype == DTfloat */ { |
451 |
> |
float fc[3]; |
452 |
> |
r = cm->ncols*cm->nrows; |
453 |
> |
while (r--) { |
454 |
> |
copycolor(fc, mp); |
455 |
> |
if (fwrite(fc, sizeof(float), 3, fp) != 3) |
456 |
> |
return(0); |
457 |
> |
mp += 3; |
458 |
> |
} |
459 |
> |
} |
460 |
> |
break; |
461 |
> |
case DTrgbe: |
462 |
> |
case DTxyze: |
463 |
> |
fprtresolu(cm->ncols, cm->nrows, fp); |
464 |
> |
for (r = 0; r < cm->nrows; r++, mp += 3*cm->ncols) |
465 |
> |
if (fwritescan((COLOR *)mp, cm->ncols, fp) < 0) |
466 |
> |
return(0); |
467 |
> |
break; |
468 |
> |
default: |
469 |
> |
fputs("Unsupported data type in cm_write()!\n", stderr); |
470 |
> |
return(0); |
471 |
|
} |
472 |
+ |
return(fflush(fp) == 0); |
473 |
|
} |