1 |
greg |
2.1 |
#ifndef lint |
2 |
greg |
2.13 |
static const char RCSid[] = "$Id: rmtxop.c,v 2.12 2018/08/27 23:03:05 greg Exp $"; |
3 |
greg |
2.1 |
#endif |
4 |
|
|
/* |
5 |
|
|
* General component matrix operations. |
6 |
|
|
*/ |
7 |
|
|
|
8 |
|
|
#include <stdio.h> |
9 |
|
|
#include <stdlib.h> |
10 |
greg |
2.11 |
#include <errno.h> |
11 |
greg |
2.1 |
#include "rtio.h" |
12 |
|
|
#include "resolu.h" |
13 |
|
|
#include "rmatrix.h" |
14 |
greg |
2.10 |
#include "platform.h" |
15 |
greg |
2.1 |
|
16 |
greg |
2.13 |
#define MAXCOMP 16 /* #components we support */ |
17 |
greg |
2.1 |
|
18 |
greg |
2.13 |
static const char stdin_name[] = "<stdin>"; |
19 |
|
|
|
20 |
|
|
/* unary matrix operation(s) */ |
21 |
greg |
2.1 |
typedef struct { |
22 |
|
|
double sca[MAXCOMP]; /* scalar coefficients */ |
23 |
|
|
double cmat[MAXCOMP*MAXCOMP]; /* component transformation */ |
24 |
greg |
2.13 |
short nsf; /* number of scalars */ |
25 |
|
|
short clen; /* number of coefficients */ |
26 |
|
|
short transpose; /* do transpose? */ |
27 |
|
|
} RUNARYOP; |
28 |
|
|
|
29 |
|
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/* matrix input source and requested operation(s) */ |
30 |
|
|
typedef struct { |
31 |
|
|
const char *inspec; /* input specification */ |
32 |
|
|
RUNARYOP preop; /* unary operation(s) */ |
33 |
|
|
RMATRIX *mtx; /* original matrix if loaded */ |
34 |
|
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int binop; /* binary op with next (or 0) */ |
35 |
|
|
} ROPMAT; |
36 |
greg |
2.1 |
|
37 |
|
|
int verbose = 0; /* verbose reporting? */ |
38 |
|
|
|
39 |
greg |
2.13 |
/* Load matrix */ |
40 |
|
|
static int |
41 |
|
|
loadmatrix(ROPMAT *rop) |
42 |
greg |
2.1 |
{ |
43 |
greg |
2.13 |
if (rop->mtx != NULL) |
44 |
|
|
return(0); |
45 |
|
|
|
46 |
|
|
rop->mtx = rmx_load(rop->inspec == stdin_name ? |
47 |
|
|
(const char *)NULL : rop->inspec); |
48 |
|
|
if (rop->mtx == NULL) { |
49 |
|
|
fputs(rop->inspec, stderr); |
50 |
|
|
fputs(": cannot load matrix\n", stderr); |
51 |
|
|
return(-1); |
52 |
|
|
} |
53 |
|
|
return(1); |
54 |
greg |
2.1 |
} |
55 |
|
|
|
56 |
greg |
2.13 |
/* Get matrix and perform unary operations */ |
57 |
greg |
2.1 |
static RMATRIX * |
58 |
greg |
2.13 |
loadop(ROPMAT *rop) |
59 |
greg |
2.1 |
{ |
60 |
greg |
2.13 |
RMATRIX *mres; |
61 |
greg |
2.1 |
int i; |
62 |
|
|
|
63 |
greg |
2.13 |
if (loadmatrix(rop) < 0) /* make sure we're loaded */ |
64 |
greg |
2.1 |
return(NULL); |
65 |
greg |
2.13 |
|
66 |
|
|
if (rop->preop.nsf > 0) { /* apply scalar(s) */ |
67 |
|
|
if (rop->preop.clen > 0) { |
68 |
greg |
2.1 |
fputs("Options -s and -c are exclusive\n", stderr); |
69 |
greg |
2.13 |
goto failure; |
70 |
greg |
2.1 |
} |
71 |
greg |
2.13 |
if (rop->preop.nsf == 1) { |
72 |
|
|
for (i = rop->mtx->ncomp; --i; ) |
73 |
|
|
rop->preop.sca[i] = rop->preop.sca[0]; |
74 |
|
|
} else if (rop->preop.nsf != rop->mtx->ncomp) { |
75 |
greg |
2.1 |
fprintf(stderr, "%s: -s must have one or %d factors\n", |
76 |
greg |
2.13 |
rop->inspec, rop->mtx->ncomp); |
77 |
|
|
goto failure; |
78 |
greg |
2.1 |
} |
79 |
greg |
2.13 |
if (!rmx_scale(rop->mtx, rop->preop.sca)) { |
80 |
|
|
fputs(rop->inspec, stderr); |
81 |
greg |
2.1 |
fputs(": scalar operation failed\n", stderr); |
82 |
greg |
2.13 |
goto failure; |
83 |
greg |
2.1 |
} |
84 |
|
|
if (verbose) { |
85 |
greg |
2.13 |
fputs(rop->inspec, stderr); |
86 |
greg |
2.1 |
fputs(": applied scalar (", stderr); |
87 |
greg |
2.13 |
for (i = 0; i < rop->preop.nsf; i++) |
88 |
|
|
fprintf(stderr, " %f", rop->preop.sca[i]); |
89 |
greg |
2.1 |
fputs(" )\n", stderr); |
90 |
|
|
} |
91 |
|
|
} |
92 |
greg |
2.13 |
if (rop->preop.clen > 0) { /* apply transform */ |
93 |
|
|
if (rop->preop.clen % rop->mtx->ncomp) { |
94 |
greg |
2.1 |
fprintf(stderr, "%s: -c must have N x %d coefficients\n", |
95 |
greg |
2.13 |
rop->inspec, rop->mtx->ncomp); |
96 |
|
|
goto failure; |
97 |
greg |
2.1 |
} |
98 |
greg |
2.13 |
mres = rmx_transform(rop->mtx, rop->preop.clen/rop->mtx->ncomp, |
99 |
|
|
rop->preop.cmat); |
100 |
|
|
if (mres == NULL) { |
101 |
|
|
fprintf(stderr, "%s: matrix transform failed\n", |
102 |
|
|
rop->inspec); |
103 |
|
|
goto failure; |
104 |
greg |
2.1 |
} |
105 |
|
|
if (verbose) |
106 |
|
|
fprintf(stderr, "%s: applied %d x %d transform\n", |
107 |
greg |
2.13 |
rop->inspec, mres->ncomp, |
108 |
|
|
rop->mtx->ncomp); |
109 |
|
|
rmx_free(rop->mtx); |
110 |
|
|
rop->mtx = mres; |
111 |
greg |
2.1 |
} |
112 |
greg |
2.13 |
if (rop->preop.transpose) { /* transpose matrix? */ |
113 |
|
|
mres = rmx_transpose(rop->mtx); |
114 |
|
|
if (mres == NULL) { |
115 |
|
|
fputs(rop->inspec, stderr); |
116 |
greg |
2.12 |
fputs(": transpose failed\n", stderr); |
117 |
greg |
2.13 |
goto failure; |
118 |
greg |
2.12 |
} |
119 |
|
|
if (verbose) { |
120 |
greg |
2.13 |
fputs(rop->inspec, stderr); |
121 |
greg |
2.12 |
fputs(": transposed rows and columns\n", stderr); |
122 |
|
|
} |
123 |
greg |
2.13 |
rmx_free(rop->mtx); |
124 |
|
|
rop->mtx = mres; |
125 |
|
|
} |
126 |
|
|
mres = rop->mtx; |
127 |
|
|
rop->mtx = NULL; |
128 |
|
|
return(mres); |
129 |
|
|
failure: |
130 |
|
|
rmx_free(rop->mtx); |
131 |
|
|
return(rop->mtx = NULL); |
132 |
|
|
} |
133 |
|
|
|
134 |
|
|
/* Execute binary operation, free matrix arguments and return new result */ |
135 |
|
|
static RMATRIX * |
136 |
|
|
binaryop(const char *inspec, RMATRIX *mleft, int op, RMATRIX *mright) |
137 |
|
|
{ |
138 |
|
|
RMATRIX *mres = NULL; |
139 |
|
|
int i; |
140 |
|
|
|
141 |
|
|
if ((mleft == NULL) | (mright == NULL)) |
142 |
|
|
return(NULL); |
143 |
|
|
|
144 |
|
|
switch (op) { |
145 |
|
|
case '.': /* concatenate */ |
146 |
|
|
mres = rmx_multiply(mleft, mright); |
147 |
|
|
rmx_free(mleft); |
148 |
greg |
2.12 |
rmx_free(mright); |
149 |
greg |
2.1 |
if (mres == NULL) { |
150 |
greg |
2.13 |
fputs(inspec, stderr); |
151 |
greg |
2.1 |
if (mleft->ncols != mright->nrows) |
152 |
|
|
fputs(": mismatched dimensions for multiply\n", |
153 |
|
|
stderr); |
154 |
|
|
else |
155 |
|
|
fputs(": concatenation failed\n", stderr); |
156 |
|
|
return(NULL); |
157 |
|
|
} |
158 |
|
|
if (verbose) { |
159 |
greg |
2.13 |
fputs(inspec, stderr); |
160 |
greg |
2.1 |
fputs(": concatenated matrix\n", stderr); |
161 |
|
|
} |
162 |
greg |
2.13 |
break; |
163 |
|
|
case '+': |
164 |
|
|
if (!rmx_sum(mleft, mright, NULL)) { |
165 |
|
|
fputs(inspec, stderr); |
166 |
greg |
2.1 |
fputs(": matrix sum failed\n", stderr); |
167 |
greg |
2.13 |
rmx_free(mleft); |
168 |
greg |
2.1 |
rmx_free(mright); |
169 |
|
|
return(NULL); |
170 |
|
|
} |
171 |
|
|
if (verbose) { |
172 |
greg |
2.13 |
fputs(inspec, stderr); |
173 |
greg |
2.1 |
fputs(": added in matrix\n", stderr); |
174 |
|
|
} |
175 |
|
|
rmx_free(mright); |
176 |
greg |
2.13 |
mres = mleft; |
177 |
|
|
break; |
178 |
|
|
case '*': |
179 |
|
|
case '/': { |
180 |
|
|
const char * tnam = (op == '/') ? |
181 |
greg |
2.11 |
"division" : "multiplication"; |
182 |
|
|
errno = 0; |
183 |
greg |
2.13 |
if (!rmx_elemult(mleft, mright, (op == '/'))) { |
184 |
greg |
2.11 |
fprintf(stderr, "%s: element-wise %s failed\n", |
185 |
greg |
2.13 |
inspec, tnam); |
186 |
|
|
rmx_free(mleft); |
187 |
greg |
2.11 |
rmx_free(mright); |
188 |
|
|
return(NULL); |
189 |
|
|
} |
190 |
|
|
if (errno) |
191 |
|
|
fprintf(stderr, |
192 |
|
|
"%s: warning - error during element-wise %s\n", |
193 |
greg |
2.13 |
inspec, tnam); |
194 |
greg |
2.11 |
else if (verbose) |
195 |
greg |
2.13 |
fprintf(stderr, "%s: element-wise %s\n", inspec, tnam); |
196 |
greg |
2.11 |
rmx_free(mright); |
197 |
greg |
2.13 |
mres = mleft; |
198 |
|
|
} break; |
199 |
|
|
default: |
200 |
|
|
fprintf(stderr, "%s: unknown operation '%c'\n", inspec, op); |
201 |
|
|
rmx_free(mleft); |
202 |
greg |
2.1 |
rmx_free(mright); |
203 |
|
|
return(NULL); |
204 |
|
|
} |
205 |
greg |
2.13 |
return(mres); |
206 |
|
|
} |
207 |
|
|
|
208 |
|
|
/* Perform matrix operations from left to right */ |
209 |
|
|
static RMATRIX * |
210 |
|
|
op_left2right(ROPMAT *mop) |
211 |
|
|
{ |
212 |
|
|
RMATRIX *mleft = loadop(mop); |
213 |
|
|
|
214 |
|
|
while (mop->binop) { |
215 |
|
|
if (mleft == NULL) |
216 |
|
|
break; |
217 |
|
|
mleft = binaryop(mop[1].inspec, |
218 |
|
|
mleft, mop->binop, loadop(mop+1)); |
219 |
|
|
mop++; |
220 |
|
|
} |
221 |
greg |
2.1 |
return(mleft); |
222 |
|
|
} |
223 |
|
|
|
224 |
greg |
2.13 |
/* Perform matrix operations from right to left */ |
225 |
|
|
static RMATRIX * |
226 |
|
|
op_right2left(ROPMAT *mop) |
227 |
|
|
{ |
228 |
|
|
RMATRIX *mright; |
229 |
|
|
int rpos = 0; |
230 |
|
|
/* find end of list */ |
231 |
|
|
while (mop[rpos].binop) |
232 |
|
|
rpos++; |
233 |
|
|
mright = loadop(mop+rpos); |
234 |
|
|
while (rpos-- > 0) { |
235 |
|
|
if (mright == NULL) |
236 |
|
|
break; |
237 |
|
|
mright = binaryop(mop[rpos].inspec, |
238 |
|
|
loadop(mop+rpos), mop[rpos].binop, mright); |
239 |
|
|
} |
240 |
|
|
return(mright); |
241 |
|
|
} |
242 |
|
|
|
243 |
|
|
#define t_nrows(mop) ((mop)->preop.transpose ? (mop)->mtx->ncols \ |
244 |
|
|
: (mop)->mtx->nrows) |
245 |
|
|
#define t_ncols(mop) ((mop)->preop.transpose ? (mop)->mtx->nrows \ |
246 |
|
|
: (mop)->mtx->ncols) |
247 |
|
|
|
248 |
|
|
/* Should we prefer concatenating from rightmost matrix towards left? */ |
249 |
|
|
static int |
250 |
|
|
prefer_right2left(ROPMAT *mop) |
251 |
|
|
{ |
252 |
|
|
int mri = 0; |
253 |
|
|
|
254 |
|
|
while (mop[mri].binop) /* find rightmost matrix */ |
255 |
|
|
if (mop[mri++].binop != '.') |
256 |
|
|
return(0); /* pre-empt reversal for other ops */ |
257 |
|
|
|
258 |
|
|
if (mri <= 1) |
259 |
|
|
return(0); /* won't matter */ |
260 |
|
|
|
261 |
|
|
if (loadmatrix(mop+mri) < 0) /* load rightmost cat */ |
262 |
|
|
return(1); /* fail will bail in a moment */ |
263 |
|
|
|
264 |
|
|
if (t_ncols(mop+mri) == 1) |
265 |
|
|
return(1); /* definitely better R->L */ |
266 |
|
|
|
267 |
|
|
if (t_ncols(mop+mri) >= t_nrows(mop+mri)) |
268 |
|
|
return(0); /* ...probably worse */ |
269 |
|
|
|
270 |
|
|
if (loadmatrix(mop) < 0) /* load leftmost */ |
271 |
|
|
return(0); /* fail will bail in a moment */ |
272 |
|
|
|
273 |
|
|
return(t_ncols(mop+mri) < t_nrows(mop)); |
274 |
|
|
} |
275 |
|
|
|
276 |
greg |
2.1 |
static int |
277 |
|
|
get_factors(double da[], int n, char *av[]) |
278 |
|
|
{ |
279 |
|
|
int ac; |
280 |
|
|
|
281 |
|
|
for (ac = 0; ac < n && isflt(av[ac]); ac++) |
282 |
|
|
da[ac] = atof(av[ac]); |
283 |
|
|
return(ac); |
284 |
|
|
} |
285 |
|
|
|
286 |
greg |
2.13 |
static ROPMAT * |
287 |
|
|
grow_moparray(ROPMAT *mop, int n2alloc) |
288 |
|
|
{ |
289 |
|
|
int nmats = 0; |
290 |
|
|
|
291 |
|
|
while (mop[nmats++].binop) |
292 |
|
|
; |
293 |
|
|
mop = (ROPMAT *)realloc(mop, n2alloc*sizeof(ROPMAT)); |
294 |
|
|
if (mop == NULL) { |
295 |
|
|
fputs("Out of memory in grow_moparray()\n", stderr); |
296 |
|
|
exit(1); |
297 |
|
|
} |
298 |
|
|
if (n2alloc > nmats) |
299 |
|
|
memset(mop+nmats, 0, (n2alloc-nmats)*sizeof(ROPMAT)); |
300 |
|
|
return(mop); |
301 |
|
|
} |
302 |
|
|
|
303 |
greg |
2.1 |
/* Load one or more matrices and operate on them, sending results to stdout */ |
304 |
|
|
int |
305 |
|
|
main(int argc, char *argv[]) |
306 |
|
|
{ |
307 |
greg |
2.7 |
int outfmt = DTfromHeader; |
308 |
greg |
2.13 |
int nall = 2; |
309 |
|
|
ROPMAT *mop = (ROPMAT *)calloc(nall, sizeof(ROPMAT)); |
310 |
|
|
int nmats = 0; |
311 |
greg |
2.1 |
RMATRIX *mres = NULL; |
312 |
greg |
2.13 |
int stdin_used = 0; |
313 |
greg |
2.1 |
int i; |
314 |
|
|
/* get options and arguments */ |
315 |
greg |
2.13 |
for (i = 1; i < argc; i++) { |
316 |
|
|
if (nmats >= nall) |
317 |
|
|
mop = grow_moparray(mop, nall += 2); |
318 |
greg |
2.11 |
if (argv[i][0] && !argv[i][1] && |
319 |
greg |
2.13 |
strchr(".+*/", argv[i][0]) != NULL) { |
320 |
|
|
if (mop[nmats].inspec == NULL || mop[nmats].binop) { |
321 |
|
|
fprintf(stderr, "%s: missing matrix argument\n", |
322 |
|
|
argv[0]); |
323 |
|
|
return(1); |
324 |
|
|
} |
325 |
|
|
mop[nmats++].binop = argv[i][0]; |
326 |
greg |
2.1 |
} else if (argv[i][0] != '-' || !argv[i][1]) { |
327 |
greg |
2.13 |
if (argv[i][0] == '-') { |
328 |
|
|
if (stdin_used++) { |
329 |
|
|
fprintf(stderr, |
330 |
|
|
"%s: standard input used for more than one matrix\n", |
331 |
|
|
argv[0]); |
332 |
|
|
return(1); |
333 |
|
|
} |
334 |
|
|
mop[nmats].inspec = stdin_name; |
335 |
|
|
} else |
336 |
|
|
mop[nmats].inspec = argv[i]; |
337 |
|
|
if (nmats > 0 && !mop[nmats-1].binop) |
338 |
|
|
mop[nmats-1].binop = '.'; |
339 |
|
|
nmats++; |
340 |
greg |
2.1 |
} else { |
341 |
|
|
int n = argc-1 - i; |
342 |
|
|
switch (argv[i][1]) { /* get option */ |
343 |
|
|
case 'v': |
344 |
|
|
verbose = !verbose; |
345 |
|
|
break; |
346 |
|
|
case 'f': |
347 |
|
|
switch (argv[i][2]) { |
348 |
|
|
case 'd': |
349 |
|
|
outfmt = DTdouble; |
350 |
|
|
break; |
351 |
|
|
case 'f': |
352 |
|
|
outfmt = DTfloat; |
353 |
|
|
break; |
354 |
|
|
case 'a': |
355 |
|
|
outfmt = DTascii; |
356 |
|
|
break; |
357 |
|
|
case 'c': |
358 |
|
|
outfmt = DTrgbe; |
359 |
|
|
break; |
360 |
|
|
default: |
361 |
|
|
goto userr; |
362 |
|
|
} |
363 |
|
|
break; |
364 |
|
|
case 't': |
365 |
greg |
2.13 |
mop[nmats].preop.transpose = 1; |
366 |
greg |
2.1 |
break; |
367 |
|
|
case 's': |
368 |
|
|
if (n > MAXCOMP) n = MAXCOMP; |
369 |
greg |
2.13 |
i += mop[nmats].preop.nsf = |
370 |
|
|
get_factors(mop[nmats].preop.sca, |
371 |
|
|
n, argv+i+1); |
372 |
greg |
2.1 |
break; |
373 |
|
|
case 'c': |
374 |
|
|
if (n > MAXCOMP*MAXCOMP) n = MAXCOMP*MAXCOMP; |
375 |
greg |
2.13 |
i += mop[nmats].preop.clen = |
376 |
|
|
get_factors(mop[nmats].preop.cmat, |
377 |
|
|
n, argv+i+1); |
378 |
greg |
2.1 |
break; |
379 |
|
|
default: |
380 |
|
|
fprintf(stderr, "%s: unknown operation '%s'\n", |
381 |
|
|
argv[0], argv[i]); |
382 |
|
|
goto userr; |
383 |
|
|
} |
384 |
|
|
} |
385 |
greg |
2.13 |
} |
386 |
|
|
if (mop[0].inspec == NULL) /* nothing to do? */ |
387 |
greg |
2.1 |
goto userr; |
388 |
greg |
2.13 |
/* favor quicker concatenation */ |
389 |
|
|
mres = prefer_right2left(mop) ? op_right2left(mop) : op_left2right(mop); |
390 |
|
|
if (!mres) |
391 |
|
|
return(1); |
392 |
greg |
2.1 |
/* write result to stdout */ |
393 |
greg |
2.6 |
if (outfmt == DTfromHeader) |
394 |
|
|
outfmt = mres->dtype; |
395 |
greg |
2.4 |
if (outfmt != DTascii) |
396 |
greg |
2.10 |
SET_FILE_BINARY(stdout); |
397 |
greg |
2.1 |
newheader("RADIANCE", stdout); |
398 |
|
|
printargs(argc, argv, stdout); |
399 |
greg |
2.5 |
if (!rmx_write(mres, outfmt, stdout)) { |
400 |
greg |
2.1 |
fprintf(stderr, "%s: error writing result matrix\n", argv[0]); |
401 |
|
|
return(1); |
402 |
|
|
} |
403 |
greg |
2.13 |
/* rmx_free(mres); free(mop); */ |
404 |
greg |
2.1 |
return(0); |
405 |
|
|
userr: |
406 |
|
|
fprintf(stderr, |
407 |
greg |
2.13 |
"Usage: %s [-v][-f[adfc][-t][-s sf .. | -c ce ..] m1 [.+*/] .. > mres\n", |
408 |
greg |
2.1 |
argv[0]); |
409 |
|
|
return(1); |
410 |
|
|
} |