8 |
|
*/ |
9 |
|
|
10 |
|
#include <ctype.h> |
11 |
+ |
#include "platform.h" |
12 |
|
#include "standard.h" |
13 |
|
#include "cmatrix.h" |
14 |
|
#include "platform.h" |
15 |
+ |
#include "paths.h" |
16 |
|
#include "resolu.h" |
17 |
|
|
18 |
|
const char *cm_fmt_id[] = { |
19 |
< |
"unknown", "ascii", "float", "double", |
20 |
< |
COLRFMT, CIEFMT |
19 |
> |
"unknown", "ascii", COLRFMT, CIEFMT, |
20 |
> |
"float", "double" |
21 |
|
}; |
22 |
|
|
23 |
|
const int cm_elem_size[] = { |
41 |
|
return(cm); |
42 |
|
} |
43 |
|
|
44 |
+ |
static void |
45 |
+ |
adjacent_ra_sizes(size_t bounds[2], size_t target) |
46 |
+ |
{ |
47 |
+ |
bounds[0] = 0; bounds[1] = 2048; |
48 |
+ |
while (bounds[1] < target) { |
49 |
+ |
bounds[0] = bounds[1]; |
50 |
+ |
bounds[1] += bounds[1]>>1; |
51 |
+ |
} |
52 |
+ |
} |
53 |
+ |
|
54 |
|
/* Resize color coefficient matrix */ |
55 |
|
CMATRIX * |
56 |
|
cm_resize(CMATRIX *cm, int nrows) |
57 |
|
{ |
58 |
+ |
size_t old_size, new_size, ra_bounds[2]; |
59 |
+ |
|
60 |
|
if (nrows == cm->nrows) |
61 |
|
return(cm); |
62 |
|
if (nrows <= 0) { |
63 |
|
cm_free(cm); |
64 |
|
return(NULL); |
65 |
|
} |
66 |
< |
cm = (CMATRIX *)realloc(cm, sizeof(CMATRIX) + |
67 |
< |
sizeof(COLOR)*(nrows*cm->ncols - 1)); |
68 |
< |
if (cm == NULL) |
69 |
< |
error(SYSTEM, "out of memory in cm_resize()"); |
66 |
> |
old_size = sizeof(CMATRIX) + sizeof(COLOR)*(cm->nrows*cm->ncols - 1); |
67 |
> |
adjacent_ra_sizes(ra_bounds, old_size); |
68 |
> |
new_size = sizeof(CMATRIX) + sizeof(COLOR)*(nrows*cm->ncols - 1); |
69 |
> |
if (nrows < cm->nrows ? new_size <= ra_bounds[0] : |
70 |
> |
new_size > ra_bounds[1]) { |
71 |
> |
adjacent_ra_sizes(ra_bounds, new_size); |
72 |
> |
cm = (CMATRIX *)realloc(cm, ra_bounds[1]); |
73 |
> |
if (cm == NULL) |
74 |
> |
error(SYSTEM, "out of memory in cm_resize()"); |
75 |
> |
} |
76 |
|
cm->nrows = nrows; |
77 |
|
return(cm); |
78 |
|
} |
79 |
|
|
80 |
+ |
typedef struct { |
81 |
+ |
int dtype; /* data type */ |
82 |
+ |
int nrows, ncols; /* matrix size */ |
83 |
+ |
char *err; /* error message */ |
84 |
+ |
} CMINFO; /* header info record */ |
85 |
+ |
|
86 |
|
static int |
87 |
< |
getDT(char *s, void *p) |
87 |
> |
get_cminfo(char *s, void *p) |
88 |
|
{ |
89 |
+ |
CMINFO *ip = (CMINFO *)p; |
90 |
|
char fmt[32]; |
91 |
|
int i; |
92 |
< |
|
92 |
> |
|
93 |
> |
if (!strncmp(s, "NCOMP=", 6) && atoi(s+6) != 3) { |
94 |
> |
ip->err = "unexpected # components (must be 3)"; |
95 |
> |
return(-1); |
96 |
> |
} |
97 |
> |
if (!strncmp(s, "NROWS=", 6)) { |
98 |
> |
ip->nrows = atoi(s+6); |
99 |
> |
return(0); |
100 |
> |
} |
101 |
> |
if (!strncmp(s, "NCOLS=", 6)) { |
102 |
> |
ip->ncols = atoi(s+6); |
103 |
> |
return(0); |
104 |
> |
} |
105 |
|
if (!formatval(fmt, s)) |
106 |
|
return(0); |
107 |
|
for (i = 1; i < DTend; i++) |
108 |
|
if (!strcmp(fmt, cm_fmt_id[i])) |
109 |
< |
*((int *)p) = i; |
109 |
> |
ip->dtype = i; |
110 |
|
return(0); |
111 |
|
} |
112 |
|
|
113 |
< |
/* Load header to obtain data type */ |
114 |
< |
int |
115 |
< |
getDTfromHeader(FILE *fp) |
113 |
> |
/* Load header to obtain/check data type and number of columns */ |
114 |
> |
char * |
115 |
> |
cm_getheader(int *dt, int *nr, int *nc, FILE *fp) |
116 |
|
{ |
117 |
< |
int dt = DTfromHeader; |
118 |
< |
|
119 |
< |
if (getheader(fp, getDT, &dt) < 0) |
120 |
< |
error(SYSTEM, "header read error"); |
121 |
< |
if (dt == DTfromHeader) |
122 |
< |
error(USER, "missing data format in header"); |
123 |
< |
return(dt); |
117 |
> |
CMINFO cmi; |
118 |
> |
/* read header */ |
119 |
> |
cmi.dtype = DTfromHeader; |
120 |
> |
cmi.nrows = cmi.ncols = 0; |
121 |
> |
cmi.err = "unexpected EOF in header"; |
122 |
> |
if (getheader(fp, get_cminfo, &cmi) < 0) |
123 |
> |
return(cmi.err); |
124 |
> |
if (dt != NULL) { /* get/check data type? */ |
125 |
> |
if (cmi.dtype == DTfromHeader) { |
126 |
> |
if (*dt == DTfromHeader) |
127 |
> |
return("missing/unknown data format in header"); |
128 |
> |
} else if (*dt == DTfromHeader) |
129 |
> |
*dt = cmi.dtype; |
130 |
> |
else if (*dt != cmi.dtype) |
131 |
> |
return("unexpected data format in header"); |
132 |
> |
} |
133 |
> |
if (nr != NULL) { /* get/check #rows? */ |
134 |
> |
if (*nr <= 0) |
135 |
> |
*nr = cmi.nrows; |
136 |
> |
else if ((cmi.nrows > 0) & (*nr != cmi.nrows)) |
137 |
> |
return("unexpected row count in header"); |
138 |
> |
} |
139 |
> |
if (nc != NULL) { /* get/check #columns? */ |
140 |
> |
if (*nc <= 0) |
141 |
> |
*nc = cmi.ncols; |
142 |
> |
else if ((cmi.ncols > 0) & (*nc != cmi.ncols)) |
143 |
> |
return("unexpected column count in header"); |
144 |
> |
} |
145 |
> |
return(NULL); |
146 |
|
} |
147 |
|
|
148 |
< |
/* Allocate and load a matrix from the given file (or stdin if NULL) */ |
148 |
> |
/* Allocate and load a matrix from the given input (or stdin if NULL) */ |
149 |
|
CMATRIX * |
150 |
< |
cm_load(const char *fname, int nrows, int ncols, int dtype) |
150 |
> |
cm_load(const char *inspec, int nrows, int ncols, int dtype) |
151 |
|
{ |
152 |
< |
FILE *fp = stdin; |
153 |
< |
CMATRIX *cm; |
152 |
> |
const int ROWINC = 2048; |
153 |
> |
FILE *fp = stdin; |
154 |
> |
CMATRIX *cm; |
155 |
|
|
156 |
< |
if (ncols <= 0) |
157 |
< |
error(USER, "Non-positive number of columns"); |
158 |
< |
if (fname == NULL) |
159 |
< |
fname = "<stdin>"; |
160 |
< |
else if ((fp = fopen(fname, "r")) == NULL) { |
161 |
< |
sprintf(errmsg, "cannot open file '%s'", fname); |
156 |
> |
if (inspec == NULL) |
157 |
> |
inspec = "<stdin>"; |
158 |
> |
else if (inspec[0] == '!') { |
159 |
> |
fp = popen(inspec+1, "r"); |
160 |
> |
if (fp == NULL) { |
161 |
> |
sprintf(errmsg, "cannot start command '%s'", inspec); |
162 |
> |
error(SYSTEM, errmsg); |
163 |
> |
} |
164 |
> |
} else if ((fp = fopen(inspec, "r")) == NULL) { |
165 |
> |
sprintf(errmsg, "cannot open file '%s'", inspec); |
166 |
|
error(SYSTEM, errmsg); |
167 |
|
} |
168 |
|
#ifdef getc_unlocked |
170 |
|
#endif |
171 |
|
if (dtype != DTascii) |
172 |
|
SET_FILE_BINARY(fp); /* doesn't really work */ |
173 |
< |
if (dtype == DTfromHeader) |
174 |
< |
dtype = getDTfromHeader(fp); |
173 |
> |
if (!dtype | !ncols) { /* expecting header? */ |
174 |
> |
char *err = cm_getheader(&dtype, &nrows, &ncols, fp); |
175 |
> |
if (err != NULL) |
176 |
> |
error(USER, err); |
177 |
> |
if (ncols <= 0) |
178 |
> |
error(USER, "unspecified number of columns"); |
179 |
> |
} |
180 |
|
switch (dtype) { |
181 |
|
case DTascii: |
182 |
|
case DTfloat: |
187 |
|
} |
188 |
|
if (nrows <= 0) { /* don't know length? */ |
189 |
|
int guessrows = 147; /* usually big enough */ |
190 |
< |
if ((dtype != DTascii) & (fp != stdin)) { |
190 |
> |
if ((dtype != DTascii) & (fp != stdin) & (inspec[0] != '!')) { |
191 |
|
long startpos = ftell(fp); |
192 |
|
if (fseek(fp, 0L, SEEK_END) == 0) { |
193 |
|
long endpos = ftell(fp); |
197 |
|
if ((endpos - startpos) % (ncols*elemsiz)) { |
198 |
|
sprintf(errmsg, |
199 |
|
"improper length for binary file '%s'", |
200 |
< |
fname); |
200 |
> |
inspec); |
201 |
|
error(USER, errmsg); |
202 |
|
} |
203 |
|
guessrows = (endpos - startpos)/(ncols*elemsiz); |
204 |
|
if (fseek(fp, startpos, SEEK_SET) < 0) { |
205 |
|
sprintf(errmsg, |
206 |
|
"fseek() error on file '%s'", |
207 |
< |
fname); |
207 |
> |
inspec); |
208 |
|
error(SYSTEM, errmsg); |
209 |
|
} |
210 |
|
nrows = guessrows; /* we're confident */ |
220 |
|
int r, c; |
221 |
|
for (r = 0; r < maxrow; r++) { |
222 |
|
if (r >= cm->nrows) /* need more space? */ |
223 |
< |
cm = cm_resize(cm, 2*cm->nrows); |
223 |
> |
cm = cm_resize(cm, cm->nrows+ROWINC); |
224 |
|
for (c = 0; c < ncols; c++) { |
225 |
|
COLORV *cv = cm_lval(cm,r,c); |
226 |
< |
if (fscanf(fp, COLSPEC, cv, cv+1, cv+2) != 3) |
226 |
> |
if (fscanf(fp, COLSPEC, cv, cv+1, cv+2) != 3) { |
227 |
|
if ((nrows <= 0) & (r > 0) & !c) { |
228 |
|
cm = cm_resize(cm, maxrow=r); |
229 |
|
break; |
230 |
|
} else |
231 |
|
goto EOFerror; |
232 |
+ |
} |
233 |
|
} |
234 |
|
} |
235 |
|
while ((c = getc(fp)) != EOF) |
236 |
|
if (!isspace(c)) { |
237 |
|
sprintf(errmsg, |
238 |
< |
"unexpected data at end of ascii file %s", |
239 |
< |
fname); |
238 |
> |
"unexpected data at end of ascii input '%s'", |
239 |
> |
inspec); |
240 |
|
error(WARNING, errmsg); |
241 |
|
break; |
242 |
|
} |
251 |
|
if (nrows <= 0) { /* unknown length */ |
252 |
|
if (nread == cm->nrows*cm->ncols) |
253 |
|
/* need more space? */ |
254 |
< |
cm = cm_resize(cm, 2*cm->nrows); |
254 |
> |
cm = cm_resize(cm, cm->nrows+ROWINC); |
255 |
|
else if (nread && !(nread % cm->ncols)) |
256 |
|
/* seem to be done */ |
257 |
|
cm = cm_resize(cm, nread/cm->ncols); |
290 |
|
} |
291 |
|
if (fgetc(fp) != EOF) { |
292 |
|
sprintf(errmsg, |
293 |
< |
"unexpected data at end of binary file %s", |
294 |
< |
fname); |
293 |
> |
"unexpected data at end of binary input '%s'", |
294 |
> |
inspec); |
295 |
|
error(WARNING, errmsg); |
296 |
|
} |
297 |
|
} |
298 |
< |
if (fp != stdin) |
299 |
< |
fclose(fp); |
298 |
> |
if (fp != stdin) { |
299 |
> |
if (inspec[0] != '!') |
300 |
> |
fclose(fp); |
301 |
> |
else if (pclose(fp)) { |
302 |
> |
sprintf(errmsg, "error running command '%s'", inspec); |
303 |
> |
error(WARNING, errmsg); |
304 |
> |
} |
305 |
> |
} |
306 |
|
#ifdef getc_unlocked |
307 |
|
else |
308 |
|
funlockfile(fp); |
309 |
|
#endif |
310 |
|
return(cm); |
311 |
|
EOFerror: |
312 |
< |
sprintf(errmsg, "unexpected EOF reading %s", fname); |
312 |
> |
sprintf(errmsg, "unexpected EOF reading %s", inspec); |
313 |
|
error(USER, errmsg); |
314 |
|
not_handled: |
315 |
|
error(INTERNAL, "unhandled data size or length in cm_load()"); |