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greg |
2.1 |
#ifndef lint
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greg |
2.12 |
static const char RCSid[] = "$Id: rmtxop.c,v 2.11 2017/08/28 15:59:46 greg Exp $";
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greg |
2.1 |
#endif
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/*
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* General component matrix operations.
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*/
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#include <stdio.h>
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| 9 |
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#include <stdlib.h>
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greg |
2.11 |
#include <errno.h>
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greg |
2.1 |
#include "rtio.h"
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#include "resolu.h"
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#include "rmatrix.h"
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greg |
2.10 |
#include "platform.h"
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greg |
2.1 |
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#define MAXCOMP 50 /* #components we support */
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typedef struct {
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double sca[MAXCOMP]; /* scalar coefficients */
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int nsf; /* number of scalars */
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double cmat[MAXCOMP*MAXCOMP]; /* component transformation */
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int clen; /* number of coefficients */
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greg |
2.2 |
int transpose; /* do transpose? */
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greg |
2.1 |
int op; /* '*' or '+' */
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} ROPERAT; /* matrix operation */
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int verbose = 0; /* verbose reporting? */
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static void
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op_default(ROPERAT *op)
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{
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memset(op, 0, sizeof(ROPERAT));
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greg |
2.11 |
op->op = '.';
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greg |
2.1 |
}
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static RMATRIX *
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operate(RMATRIX *mleft, ROPERAT *op, const char *fname)
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{
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RMATRIX *mright = rmx_load(fname);
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greg |
2.2 |
RMATRIX *mtmp;
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greg |
2.1 |
int i;
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if (fname == NULL)
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fname = "<stdin>";
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if (mright == NULL) {
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fputs(fname, stderr);
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fputs(": cannot load matrix\n", stderr);
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return(NULL);
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}
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if (op->nsf > 0) { /* apply scalar(s) */
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if (op->clen > 0) {
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fputs("Options -s and -c are exclusive\n", stderr);
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rmx_free(mright);
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return(NULL);
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}
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if (op->nsf == 1) {
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for (i = mright->ncomp; --i; )
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op->sca[i] = op->sca[0];
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} else if (op->nsf != mright->ncomp) {
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fprintf(stderr, "%s: -s must have one or %d factors\n",
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fname, mright->ncomp);
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rmx_free(mright);
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return(NULL);
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}
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if ((mleft == NULL) | (op->op != '+') &&
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!rmx_scale(mright, op->sca)) {
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fputs(fname, stderr);
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fputs(": scalar operation failed\n", stderr);
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rmx_free(mright);
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return(NULL);
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}
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if (verbose) {
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fputs(fname, stderr);
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fputs(": applied scalar (", stderr);
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for (i = 0; i < op->nsf; i++)
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fprintf(stderr, " %f", op->sca[i]);
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fputs(" )\n", stderr);
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}
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}
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if (op->clen > 0) { /* apply transform */
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if (op->clen % mright->ncomp) {
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fprintf(stderr, "%s: -c must have N x %d coefficients\n",
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fname, mright->ncomp);
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rmx_free(mright);
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return(NULL);
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}
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mtmp = rmx_transform(mright, op->clen/mright->ncomp, op->cmat);
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if (mtmp == NULL) {
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fprintf(stderr, "%s: matrix transform failed\n", fname);
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rmx_free(mright);
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return(NULL);
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}
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if (verbose)
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fprintf(stderr, "%s: applied %d x %d transform\n",
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fname, mtmp->ncomp, mright->ncomp);
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rmx_free(mright);
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mright = mtmp;
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}
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greg |
2.12 |
if (op->transpose) { /* transpose matrix? */
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mtmp = rmx_transpose(mright);
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if (mtmp == NULL) {
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fputs(fname, stderr);
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fputs(": transpose failed\n", stderr);
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rmx_free(mright);
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return(NULL);
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}
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if (verbose) {
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fputs(fname, stderr);
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fputs(": transposed rows and columns\n", stderr);
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}
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rmx_free(mright);
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mright = mtmp;
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}
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greg |
2.1 |
if (mleft == NULL) /* just one matrix */
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return(mright);
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greg |
2.11 |
if (op->op == '.') { /* concatenate */
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greg |
2.1 |
RMATRIX *mres = rmx_multiply(mleft, mright);
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if (mres == NULL) {
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fputs(fname, stderr);
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if (mleft->ncols != mright->nrows)
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fputs(": mismatched dimensions for multiply\n",
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stderr);
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else
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fputs(": concatenation failed\n", stderr);
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rmx_free(mright);
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return(NULL);
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}
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if (verbose) {
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fputs(fname, stderr);
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fputs(": concatenated matrix\n", stderr);
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}
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rmx_free(mright);
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rmx_free(mleft);
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mleft = mres;
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| 135 |
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} else if (op->op == '+') {
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if (!rmx_sum(mleft, mright, op->nsf ? op->sca : (double *)NULL)) {
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fputs(fname, stderr);
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| 138 |
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fputs(": matrix sum failed\n", stderr);
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| 139 |
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rmx_free(mright);
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| 140 |
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return(NULL);
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| 141 |
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}
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| 142 |
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if (verbose) {
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| 143 |
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fputs(fname, stderr);
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| 144 |
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fputs(": added in matrix\n", stderr);
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| 145 |
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}
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| 146 |
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rmx_free(mright);
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| 147 |
greg |
2.11 |
} else if ((op->op == '*') | (op->op == '/')) {
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| 148 |
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const char * tnam = (op->op == '/') ?
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| 149 |
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"division" : "multiplication";
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| 150 |
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errno = 0;
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| 151 |
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if (!rmx_elemult(mleft, mright, (op->op == '/'))) {
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| 152 |
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fprintf(stderr, "%s: element-wise %s failed\n",
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fname, tnam);
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| 154 |
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rmx_free(mright);
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| 155 |
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return(NULL);
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| 156 |
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}
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| 157 |
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if (errno)
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| 158 |
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fprintf(stderr,
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| 159 |
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"%s: warning - error during element-wise %s\n",
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fname, tnam);
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| 161 |
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else if (verbose)
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| 162 |
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fprintf(stderr, "%s: element-wise %s\n", fname, tnam);
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rmx_free(mright);
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greg |
2.1 |
} else {
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| 165 |
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fprintf(stderr, "%s: unknown operation '%c'\n", fname, op->op);
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| 166 |
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rmx_free(mright);
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| 167 |
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return(NULL);
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| 168 |
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}
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| 169 |
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return(mleft);
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| 170 |
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}
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| 171 |
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| 172 |
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static int
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| 173 |
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get_factors(double da[], int n, char *av[])
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| 174 |
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{
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| 175 |
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int ac;
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| 176 |
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| 177 |
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for (ac = 0; ac < n && isflt(av[ac]); ac++)
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| 178 |
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da[ac] = atof(av[ac]);
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| 179 |
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return(ac);
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| 180 |
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}
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| 182 |
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/* Load one or more matrices and operate on them, sending results to stdout */
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| 183 |
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int
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| 184 |
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main(int argc, char *argv[])
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| 185 |
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{
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| 186 |
greg |
2.7 |
int outfmt = DTfromHeader;
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| 187 |
greg |
2.1 |
RMATRIX *mres = NULL;
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| 188 |
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ROPERAT op;
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| 189 |
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int i;
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| 190 |
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/* initialize */
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| 191 |
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op_default(&op);
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| 192 |
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/* get options and arguments */
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| 193 |
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for (i = 1; i < argc; i++)
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| 194 |
greg |
2.11 |
if (argv[i][0] && !argv[i][1] &&
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| 195 |
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strchr("+*/", argv[i][0]) != NULL) {
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| 196 |
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op.op = argv[i][0];
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| 197 |
greg |
2.1 |
} else if (argv[i][0] != '-' || !argv[i][1]) {
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| 198 |
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char *fname = NULL; /* load matrix */
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| 199 |
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if (argv[i][0] != '-')
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| 200 |
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fname = argv[i];
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| 201 |
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mres = operate(mres, &op, fname);
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| 202 |
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if (mres == NULL) {
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| 203 |
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fprintf(stderr, "%s: operation failed on '%s'\n",
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| 204 |
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argv[0], argv[i]);
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| 205 |
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return(0);
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| 206 |
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}
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| 207 |
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op_default(&op); /* reset operator */
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| 208 |
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} else {
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| 209 |
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int n = argc-1 - i;
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| 210 |
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switch (argv[i][1]) { /* get option */
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| 211 |
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case 'v':
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| 212 |
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verbose = !verbose;
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| 213 |
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break;
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| 214 |
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case 'f':
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| 215 |
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switch (argv[i][2]) {
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| 216 |
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case 'd':
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| 217 |
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outfmt = DTdouble;
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| 218 |
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break;
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| 219 |
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case 'f':
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| 220 |
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outfmt = DTfloat;
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| 221 |
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break;
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| 222 |
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case 'a':
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| 223 |
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outfmt = DTascii;
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| 224 |
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break;
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| 225 |
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case 'c':
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| 226 |
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outfmt = DTrgbe;
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| 227 |
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break;
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| 228 |
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default:
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| 229 |
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goto userr;
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| 230 |
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}
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| 231 |
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break;
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| 232 |
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case 't':
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| 233 |
greg |
2.2 |
op.transpose = 1;
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| 234 |
greg |
2.1 |
break;
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| 235 |
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case 's':
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| 236 |
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if (n > MAXCOMP) n = MAXCOMP;
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| 237 |
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op.nsf = get_factors(op.sca, n, argv+i+1);
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| 238 |
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i += op.nsf;
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| 239 |
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break;
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| 240 |
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case 'c':
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| 241 |
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if (n > MAXCOMP*MAXCOMP) n = MAXCOMP*MAXCOMP;
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| 242 |
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op.clen = get_factors(op.cmat, n, argv+i+1);
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| 243 |
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i += op.clen;
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| 244 |
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break;
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| 245 |
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default:
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| 246 |
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fprintf(stderr, "%s: unknown operation '%s'\n",
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| 247 |
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argv[0], argv[i]);
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| 248 |
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goto userr;
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| 249 |
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}
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| 250 |
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}
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| 251 |
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if (mres == NULL) /* check that we got something */
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| 252 |
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goto userr;
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| 253 |
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/* write result to stdout */
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| 254 |
greg |
2.6 |
if (outfmt == DTfromHeader)
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| 255 |
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outfmt = mres->dtype;
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| 256 |
greg |
2.4 |
if (outfmt != DTascii)
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| 257 |
greg |
2.10 |
SET_FILE_BINARY(stdout);
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| 258 |
greg |
2.1 |
newheader("RADIANCE", stdout);
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| 259 |
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printargs(argc, argv, stdout);
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| 260 |
greg |
2.5 |
if (!rmx_write(mres, outfmt, stdout)) {
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| 261 |
greg |
2.1 |
fprintf(stderr, "%s: error writing result matrix\n", argv[0]);
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| 262 |
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return(1);
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| 263 |
|
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}
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| 264 |
greg |
2.5 |
/* rmx_free(mres); mres = NULL; */
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| 265 |
greg |
2.1 |
return(0);
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| 266 |
|
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userr:
|
| 267 |
|
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fprintf(stderr,
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| 268 |
greg |
2.11 |
"Usage: %s [-v][-f[adfc][-t][-s sf .. | -c ce ..] m1 [+*/] .. > mres\n",
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| 269 |
greg |
2.1 |
argv[0]);
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| 270 |
|
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return(1);
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| 271 |
|
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}
|
