1 |
#ifndef lint |
2 |
static const char RCSid[] = "$Id: rmtxop.c,v 2.10 2016/08/18 17:57:57 greg Exp $"; |
3 |
#endif |
4 |
/* |
5 |
* General component matrix operations. |
6 |
*/ |
7 |
|
8 |
#include <stdio.h> |
9 |
#include <stdlib.h> |
10 |
#include <errno.h> |
11 |
#include "rtio.h" |
12 |
#include "resolu.h" |
13 |
#include "rmatrix.h" |
14 |
#include "platform.h" |
15 |
|
16 |
#define MAXCOMP 50 /* #components we support */ |
17 |
|
18 |
typedef struct { |
19 |
double sca[MAXCOMP]; /* scalar coefficients */ |
20 |
int nsf; /* number of scalars */ |
21 |
double cmat[MAXCOMP*MAXCOMP]; /* component transformation */ |
22 |
int clen; /* number of coefficients */ |
23 |
int transpose; /* do transpose? */ |
24 |
int op; /* '*' or '+' */ |
25 |
} ROPERAT; /* matrix operation */ |
26 |
|
27 |
int verbose = 0; /* verbose reporting? */ |
28 |
|
29 |
static void |
30 |
op_default(ROPERAT *op) |
31 |
{ |
32 |
memset(op, 0, sizeof(ROPERAT)); |
33 |
op->op = '.'; |
34 |
} |
35 |
|
36 |
static RMATRIX * |
37 |
operate(RMATRIX *mleft, ROPERAT *op, const char *fname) |
38 |
{ |
39 |
RMATRIX *mright = rmx_load(fname); |
40 |
RMATRIX *mtmp; |
41 |
int i; |
42 |
|
43 |
if (fname == NULL) |
44 |
fname = "<stdin>"; |
45 |
if (mright == NULL) { |
46 |
fputs(fname, stderr); |
47 |
fputs(": cannot load matrix\n", stderr); |
48 |
return(NULL); |
49 |
} |
50 |
if (op->transpose) { /* transpose matrix? */ |
51 |
mtmp = rmx_transpose(mright); |
52 |
if (mtmp == NULL) { |
53 |
fputs(fname, stderr); |
54 |
fputs(": transpose failed\n", stderr); |
55 |
rmx_free(mright); |
56 |
return(NULL); |
57 |
} |
58 |
if (verbose) { |
59 |
fputs(fname, stderr); |
60 |
fputs(": transposed rows and columns\n", stderr); |
61 |
} |
62 |
rmx_free(mright); |
63 |
mright = mtmp; |
64 |
} |
65 |
if (op->nsf > 0) { /* apply scalar(s) */ |
66 |
if (op->clen > 0) { |
67 |
fputs("Options -s and -c are exclusive\n", stderr); |
68 |
rmx_free(mright); |
69 |
return(NULL); |
70 |
} |
71 |
if (op->nsf == 1) { |
72 |
for (i = mright->ncomp; --i; ) |
73 |
op->sca[i] = op->sca[0]; |
74 |
} else if (op->nsf != mright->ncomp) { |
75 |
fprintf(stderr, "%s: -s must have one or %d factors\n", |
76 |
fname, mright->ncomp); |
77 |
rmx_free(mright); |
78 |
return(NULL); |
79 |
} |
80 |
if ((mleft == NULL) | (op->op != '+') && |
81 |
!rmx_scale(mright, op->sca)) { |
82 |
fputs(fname, stderr); |
83 |
fputs(": scalar operation failed\n", stderr); |
84 |
rmx_free(mright); |
85 |
return(NULL); |
86 |
} |
87 |
if (verbose) { |
88 |
fputs(fname, stderr); |
89 |
fputs(": applied scalar (", stderr); |
90 |
for (i = 0; i < op->nsf; i++) |
91 |
fprintf(stderr, " %f", op->sca[i]); |
92 |
fputs(" )\n", stderr); |
93 |
} |
94 |
} |
95 |
if (op->clen > 0) { /* apply transform */ |
96 |
if (op->clen % mright->ncomp) { |
97 |
fprintf(stderr, "%s: -c must have N x %d coefficients\n", |
98 |
fname, mright->ncomp); |
99 |
rmx_free(mright); |
100 |
return(NULL); |
101 |
} |
102 |
mtmp = rmx_transform(mright, op->clen/mright->ncomp, op->cmat); |
103 |
if (mtmp == NULL) { |
104 |
fprintf(stderr, "%s: matrix transform failed\n", fname); |
105 |
rmx_free(mright); |
106 |
return(NULL); |
107 |
} |
108 |
if (verbose) |
109 |
fprintf(stderr, "%s: applied %d x %d transform\n", |
110 |
fname, mtmp->ncomp, mright->ncomp); |
111 |
rmx_free(mright); |
112 |
mright = mtmp; |
113 |
} |
114 |
if (mleft == NULL) /* just one matrix */ |
115 |
return(mright); |
116 |
if (op->op == '.') { /* concatenate */ |
117 |
RMATRIX *mres = rmx_multiply(mleft, mright); |
118 |
if (mres == NULL) { |
119 |
fputs(fname, stderr); |
120 |
if (mleft->ncols != mright->nrows) |
121 |
fputs(": mismatched dimensions for multiply\n", |
122 |
stderr); |
123 |
else |
124 |
fputs(": concatenation failed\n", stderr); |
125 |
rmx_free(mright); |
126 |
return(NULL); |
127 |
} |
128 |
if (verbose) { |
129 |
fputs(fname, stderr); |
130 |
fputs(": concatenated matrix\n", stderr); |
131 |
} |
132 |
rmx_free(mright); |
133 |
rmx_free(mleft); |
134 |
mleft = mres; |
135 |
} else if (op->op == '+') { |
136 |
if (!rmx_sum(mleft, mright, op->nsf ? op->sca : (double *)NULL)) { |
137 |
fputs(fname, stderr); |
138 |
fputs(": matrix sum failed\n", stderr); |
139 |
rmx_free(mright); |
140 |
return(NULL); |
141 |
} |
142 |
if (verbose) { |
143 |
fputs(fname, stderr); |
144 |
fputs(": added in matrix\n", stderr); |
145 |
} |
146 |
rmx_free(mright); |
147 |
} else if ((op->op == '*') | (op->op == '/')) { |
148 |
const char * tnam = (op->op == '/') ? |
149 |
"division" : "multiplication"; |
150 |
errno = 0; |
151 |
if (!rmx_elemult(mleft, mright, (op->op == '/'))) { |
152 |
fprintf(stderr, "%s: element-wise %s failed\n", |
153 |
fname, tnam); |
154 |
rmx_free(mright); |
155 |
return(NULL); |
156 |
} |
157 |
if (errno) |
158 |
fprintf(stderr, |
159 |
"%s: warning - error during element-wise %s\n", |
160 |
fname, tnam); |
161 |
else if (verbose) |
162 |
fprintf(stderr, "%s: element-wise %s\n", fname, tnam); |
163 |
rmx_free(mright); |
164 |
} else { |
165 |
fprintf(stderr, "%s: unknown operation '%c'\n", fname, op->op); |
166 |
rmx_free(mright); |
167 |
return(NULL); |
168 |
} |
169 |
return(mleft); |
170 |
} |
171 |
|
172 |
static int |
173 |
get_factors(double da[], int n, char *av[]) |
174 |
{ |
175 |
int ac; |
176 |
|
177 |
for (ac = 0; ac < n && isflt(av[ac]); ac++) |
178 |
da[ac] = atof(av[ac]); |
179 |
return(ac); |
180 |
} |
181 |
|
182 |
/* Load one or more matrices and operate on them, sending results to stdout */ |
183 |
int |
184 |
main(int argc, char *argv[]) |
185 |
{ |
186 |
int outfmt = DTfromHeader; |
187 |
RMATRIX *mres = NULL; |
188 |
ROPERAT op; |
189 |
int i; |
190 |
/* initialize */ |
191 |
op_default(&op); |
192 |
/* get options and arguments */ |
193 |
for (i = 1; i < argc; i++) |
194 |
if (argv[i][0] && !argv[i][1] && |
195 |
strchr("+*/", argv[i][0]) != NULL) { |
196 |
op.op = argv[i][0]; |
197 |
} else if (argv[i][0] != '-' || !argv[i][1]) { |
198 |
char *fname = NULL; /* load matrix */ |
199 |
if (argv[i][0] != '-') |
200 |
fname = argv[i]; |
201 |
mres = operate(mres, &op, fname); |
202 |
if (mres == NULL) { |
203 |
fprintf(stderr, "%s: operation failed on '%s'\n", |
204 |
argv[0], argv[i]); |
205 |
return(0); |
206 |
} |
207 |
op_default(&op); /* reset operator */ |
208 |
} else { |
209 |
int n = argc-1 - i; |
210 |
switch (argv[i][1]) { /* get option */ |
211 |
case 'v': |
212 |
verbose = !verbose; |
213 |
break; |
214 |
case 'f': |
215 |
switch (argv[i][2]) { |
216 |
case 'd': |
217 |
outfmt = DTdouble; |
218 |
break; |
219 |
case 'f': |
220 |
outfmt = DTfloat; |
221 |
break; |
222 |
case 'a': |
223 |
outfmt = DTascii; |
224 |
break; |
225 |
case 'c': |
226 |
outfmt = DTrgbe; |
227 |
break; |
228 |
default: |
229 |
goto userr; |
230 |
} |
231 |
break; |
232 |
case 't': |
233 |
op.transpose = 1; |
234 |
break; |
235 |
case 's': |
236 |
if (n > MAXCOMP) n = MAXCOMP; |
237 |
op.nsf = get_factors(op.sca, n, argv+i+1); |
238 |
i += op.nsf; |
239 |
break; |
240 |
case 'c': |
241 |
if (n > MAXCOMP*MAXCOMP) n = MAXCOMP*MAXCOMP; |
242 |
op.clen = get_factors(op.cmat, n, argv+i+1); |
243 |
i += op.clen; |
244 |
break; |
245 |
default: |
246 |
fprintf(stderr, "%s: unknown operation '%s'\n", |
247 |
argv[0], argv[i]); |
248 |
goto userr; |
249 |
} |
250 |
} |
251 |
if (mres == NULL) /* check that we got something */ |
252 |
goto userr; |
253 |
/* write result to stdout */ |
254 |
if (outfmt == DTfromHeader) |
255 |
outfmt = mres->dtype; |
256 |
if (outfmt != DTascii) |
257 |
SET_FILE_BINARY(stdout); |
258 |
newheader("RADIANCE", stdout); |
259 |
printargs(argc, argv, stdout); |
260 |
if (!rmx_write(mres, outfmt, stdout)) { |
261 |
fprintf(stderr, "%s: error writing result matrix\n", argv[0]); |
262 |
return(1); |
263 |
} |
264 |
/* rmx_free(mres); mres = NULL; */ |
265 |
return(0); |
266 |
userr: |
267 |
fprintf(stderr, |
268 |
"Usage: %s [-v][-f[adfc][-t][-s sf .. | -c ce ..] m1 [+*/] .. > mres\n", |
269 |
argv[0]); |
270 |
return(1); |
271 |
} |