| 1 |
greg |
2.1 |
#ifndef lint
|
| 2 |
greg |
2.12 |
static const char RCSid[] = "$Id: rmatrix.c,v 2.11 2014/12/16 20:21:46 greg Exp $";
|
| 3 |
greg |
2.1 |
#endif
|
| 4 |
|
|
/*
|
| 5 |
|
|
* General matrix operations.
|
| 6 |
|
|
*/
|
| 7 |
|
|
|
| 8 |
|
|
#include <stdio.h>
|
| 9 |
|
|
#include <stdlib.h>
|
| 10 |
|
|
#include <string.h>
|
| 11 |
|
|
#include <fcntl.h>
|
| 12 |
|
|
#include "resolu.h"
|
| 13 |
|
|
#include "rmatrix.h"
|
| 14 |
|
|
|
| 15 |
greg |
2.6 |
static char rmx_mismatch_warn[] = "WARNING: data type mismatch\n";
|
| 16 |
greg |
2.1 |
|
| 17 |
|
|
/* Allocate a nr x nc matrix with n components */
|
| 18 |
|
|
RMATRIX *
|
| 19 |
|
|
rmx_alloc(int nr, int nc, int n)
|
| 20 |
|
|
{
|
| 21 |
|
|
RMATRIX *dnew;
|
| 22 |
|
|
|
| 23 |
|
|
if ((nr <= 0) | (nc <= 0) | (n <= 0))
|
| 24 |
|
|
return(NULL);
|
| 25 |
|
|
dnew = (RMATRIX *)malloc(sizeof(RMATRIX)-sizeof(dnew->mtx) +
|
| 26 |
|
|
sizeof(dnew->mtx[0])*(n*nr*nc));
|
| 27 |
|
|
if (dnew == NULL)
|
| 28 |
|
|
return(NULL);
|
| 29 |
|
|
dnew->nrows = nr; dnew->ncols = nc; dnew->ncomp = n;
|
| 30 |
greg |
2.6 |
dnew->dtype = DTdouble;
|
| 31 |
greg |
2.5 |
dnew->info = NULL;
|
| 32 |
greg |
2.1 |
return(dnew);
|
| 33 |
|
|
}
|
| 34 |
|
|
|
| 35 |
greg |
2.6 |
/* Free a RMATRIX array */
|
| 36 |
|
|
void
|
| 37 |
|
|
rmx_free(RMATRIX *rm)
|
| 38 |
|
|
{
|
| 39 |
|
|
if (!rm) return;
|
| 40 |
|
|
if (rm->info)
|
| 41 |
|
|
free(rm->info);
|
| 42 |
|
|
free(rm);
|
| 43 |
|
|
}
|
| 44 |
|
|
|
| 45 |
|
|
/* Resolve data type based on two input types (returns 0 for mismatch) */
|
| 46 |
|
|
int
|
| 47 |
|
|
rmx_newtype(int dtyp1, int dtyp2)
|
| 48 |
|
|
{
|
| 49 |
|
|
if ((dtyp1==DTxyze) | (dtyp1==DTrgbe) && dtyp1 != dtyp2)
|
| 50 |
|
|
return(0);
|
| 51 |
|
|
if (dtyp1 < dtyp2)
|
| 52 |
|
|
return(dtyp1);
|
| 53 |
|
|
return(dtyp2);
|
| 54 |
|
|
}
|
| 55 |
|
|
|
| 56 |
greg |
2.5 |
/* Append header information associated with matrix data */
|
| 57 |
|
|
int
|
| 58 |
|
|
rmx_addinfo(RMATRIX *rm, const char *info)
|
| 59 |
|
|
{
|
| 60 |
|
|
if (!info || !*info)
|
| 61 |
|
|
return(0);
|
| 62 |
greg |
2.8 |
if (!rm->info) {
|
| 63 |
greg |
2.5 |
rm->info = (char *)malloc(strlen(info)+1);
|
| 64 |
greg |
2.8 |
if (rm->info) rm->info[0] = '\0';
|
| 65 |
|
|
} else
|
| 66 |
greg |
2.5 |
rm->info = (char *)realloc(rm->info,
|
| 67 |
|
|
strlen(rm->info)+strlen(info)+1);
|
| 68 |
|
|
if (!rm->info)
|
| 69 |
|
|
return(0);
|
| 70 |
|
|
strcat(rm->info, info);
|
| 71 |
|
|
return(1);
|
| 72 |
|
|
}
|
| 73 |
|
|
|
| 74 |
greg |
2.1 |
static int
|
| 75 |
|
|
get_dminfo(char *s, void *p)
|
| 76 |
|
|
{
|
| 77 |
greg |
2.6 |
RMATRIX *ip = (RMATRIX *)p;
|
| 78 |
greg |
2.5 |
char fmt[64];
|
| 79 |
greg |
2.1 |
int i;
|
| 80 |
|
|
|
| 81 |
greg |
2.6 |
if (headidval(fmt, s))
|
| 82 |
|
|
return(0);
|
| 83 |
greg |
2.1 |
if (!strncmp(s, "NCOMP=", 6)) {
|
| 84 |
|
|
ip->ncomp = atoi(s+6);
|
| 85 |
|
|
return(0);
|
| 86 |
|
|
}
|
| 87 |
|
|
if (!strncmp(s, "NROWS=", 6)) {
|
| 88 |
|
|
ip->nrows = atoi(s+6);
|
| 89 |
|
|
return(0);
|
| 90 |
|
|
}
|
| 91 |
|
|
if (!strncmp(s, "NCOLS=", 6)) {
|
| 92 |
|
|
ip->ncols = atoi(s+6);
|
| 93 |
|
|
return(0);
|
| 94 |
|
|
}
|
| 95 |
greg |
2.5 |
if (!formatval(fmt, s)) {
|
| 96 |
greg |
2.6 |
rmx_addinfo(ip, s);
|
| 97 |
greg |
2.1 |
return(0);
|
| 98 |
greg |
2.5 |
}
|
| 99 |
greg |
2.1 |
for (i = 1; i < DTend; i++)
|
| 100 |
|
|
if (!strcmp(fmt, cm_fmt_id[i])) {
|
| 101 |
|
|
ip->dtype = i;
|
| 102 |
|
|
return(0);
|
| 103 |
|
|
}
|
| 104 |
|
|
return(-1);
|
| 105 |
|
|
}
|
| 106 |
|
|
|
| 107 |
|
|
static int
|
| 108 |
|
|
rmx_load_ascii(RMATRIX *rm, FILE *fp)
|
| 109 |
|
|
{
|
| 110 |
|
|
int i, j, k;
|
| 111 |
|
|
#ifdef _WIN32
|
| 112 |
|
|
_setmode(fileno(fp), _O_TEXT);
|
| 113 |
|
|
#endif
|
| 114 |
|
|
for (i = 0; i < rm->nrows; i++)
|
| 115 |
|
|
for (j = 0; j < rm->ncols; j++)
|
| 116 |
|
|
for (k = 0; k < rm->ncomp; k++)
|
| 117 |
|
|
if (fscanf(fp, "%lf", &rmx_lval(rm,i,j,k)) != 1)
|
| 118 |
|
|
return(0);
|
| 119 |
|
|
return(1);
|
| 120 |
|
|
}
|
| 121 |
|
|
|
| 122 |
|
|
static int
|
| 123 |
|
|
rmx_load_float(RMATRIX *rm, FILE *fp)
|
| 124 |
|
|
{
|
| 125 |
|
|
int i, j, k;
|
| 126 |
|
|
float val[100];
|
| 127 |
|
|
|
| 128 |
|
|
if (rm->ncomp > 100) {
|
| 129 |
|
|
fputs("Unsupported # components in rmx_load_float()\n", stderr);
|
| 130 |
|
|
exit(1);
|
| 131 |
|
|
}
|
| 132 |
|
|
for (i = 0; i < rm->nrows; i++)
|
| 133 |
|
|
for (j = 0; j < rm->ncols; j++) {
|
| 134 |
|
|
if (fread(val, sizeof(val[0]), rm->ncomp, fp) != rm->ncomp)
|
| 135 |
|
|
return(0);
|
| 136 |
|
|
for (k = rm->ncomp; k--; )
|
| 137 |
|
|
rmx_lval(rm,i,j,k) = val[k];
|
| 138 |
|
|
}
|
| 139 |
|
|
return(1);
|
| 140 |
|
|
}
|
| 141 |
|
|
|
| 142 |
|
|
static int
|
| 143 |
|
|
rmx_load_double(RMATRIX *rm, FILE *fp)
|
| 144 |
|
|
{
|
| 145 |
|
|
int i, j, k;
|
| 146 |
|
|
double val[100];
|
| 147 |
|
|
|
| 148 |
|
|
if (rm->ncomp > 100) {
|
| 149 |
|
|
fputs("Unsupported # components in rmx_load_double()\n", stderr);
|
| 150 |
|
|
exit(1);
|
| 151 |
|
|
}
|
| 152 |
|
|
for (i = 0; i < rm->nrows; i++)
|
| 153 |
|
|
for (j = 0; j < rm->ncols; j++) {
|
| 154 |
|
|
if (fread(val, sizeof(val[0]), rm->ncomp, fp) != rm->ncomp)
|
| 155 |
|
|
return(0);
|
| 156 |
|
|
for (k = rm->ncomp; k--; )
|
| 157 |
|
|
rmx_lval(rm,i,j,k) = val[k];
|
| 158 |
|
|
}
|
| 159 |
|
|
return(1);
|
| 160 |
|
|
}
|
| 161 |
|
|
|
| 162 |
|
|
static int
|
| 163 |
|
|
rmx_load_rgbe(RMATRIX *rm, FILE *fp)
|
| 164 |
|
|
{
|
| 165 |
|
|
COLOR *scan = (COLOR *)malloc(sizeof(COLOR)*rm->ncols);
|
| 166 |
|
|
int i, j;
|
| 167 |
|
|
|
| 168 |
|
|
if (scan == NULL)
|
| 169 |
|
|
return(0);
|
| 170 |
|
|
for (i = 0; i < rm->nrows; i++) {
|
| 171 |
|
|
if (freadscan(scan, rm->ncols, fp) < 0) {
|
| 172 |
|
|
free(scan);
|
| 173 |
|
|
return(0);
|
| 174 |
|
|
}
|
| 175 |
|
|
for (j = rm->ncols; j--; ) {
|
| 176 |
|
|
rmx_lval(rm,i,j,0) = colval(scan[j],RED);
|
| 177 |
|
|
rmx_lval(rm,i,j,1) = colval(scan[j],GRN);
|
| 178 |
|
|
rmx_lval(rm,i,j,2) = colval(scan[j],BLU);
|
| 179 |
|
|
}
|
| 180 |
|
|
}
|
| 181 |
|
|
free(scan);
|
| 182 |
|
|
return(1);
|
| 183 |
|
|
}
|
| 184 |
|
|
|
| 185 |
|
|
/* Load matrix from supported file type */
|
| 186 |
|
|
RMATRIX *
|
| 187 |
|
|
rmx_load(const char *fname)
|
| 188 |
|
|
{
|
| 189 |
|
|
FILE *fp = stdin;
|
| 190 |
greg |
2.6 |
RMATRIX dinfo;
|
| 191 |
greg |
2.1 |
RMATRIX *dnew;
|
| 192 |
|
|
|
| 193 |
|
|
if (fname == NULL) { /* reading from stdin? */
|
| 194 |
|
|
fname = "<stdin>";
|
| 195 |
greg |
2.7 |
#ifdef _WIN32
|
| 196 |
|
|
_setmode(fileno(stdin), _O_BINARY);
|
| 197 |
|
|
#endif
|
| 198 |
greg |
2.1 |
} else {
|
| 199 |
|
|
const char *sp = fname; /* check suffix */
|
| 200 |
|
|
while (*sp)
|
| 201 |
|
|
++sp;
|
| 202 |
|
|
while (sp > fname && sp[-1] != '.')
|
| 203 |
|
|
--sp;
|
| 204 |
|
|
if (!strcasecmp(sp, "XML")) { /* assume it's a BSDF */
|
| 205 |
|
|
CMATRIX *cm = cm_loadBTDF((char *)fname);
|
| 206 |
|
|
if (cm == NULL)
|
| 207 |
|
|
return(NULL);
|
| 208 |
|
|
dnew = rmx_from_cmatrix(cm);
|
| 209 |
|
|
cm_free(cm);
|
| 210 |
|
|
return(dnew);
|
| 211 |
|
|
}
|
| 212 |
|
|
/* else open it ourselves */
|
| 213 |
|
|
if ((fp = fopen(fname, "rb")) == NULL)
|
| 214 |
|
|
return(NULL);
|
| 215 |
|
|
}
|
| 216 |
|
|
#ifdef getc_unlocked
|
| 217 |
|
|
flockfile(fp);
|
| 218 |
|
|
#endif
|
| 219 |
|
|
dinfo.nrows = dinfo.ncols = dinfo.ncomp = 0;
|
| 220 |
greg |
2.6 |
dinfo.dtype = DTascii; /* assumed w/o FORMAT */
|
| 221 |
|
|
dinfo.info = NULL;
|
| 222 |
greg |
2.3 |
if (getheader(fp, get_dminfo, &dinfo) < 0) {
|
| 223 |
greg |
2.1 |
fclose(fp);
|
| 224 |
|
|
return(NULL);
|
| 225 |
|
|
}
|
| 226 |
greg |
2.4 |
if ((dinfo.nrows <= 0) | (dinfo.ncols <= 0)) {
|
| 227 |
greg |
2.1 |
if (!fscnresolu(&dinfo.ncols, &dinfo.nrows, fp)) {
|
| 228 |
|
|
fclose(fp);
|
| 229 |
|
|
return(NULL);
|
| 230 |
|
|
}
|
| 231 |
greg |
2.4 |
if (dinfo.ncomp <= 0)
|
| 232 |
|
|
dinfo.ncomp = 3;
|
| 233 |
|
|
else if ((dinfo.dtype == DTrgbe) | (dinfo.dtype == DTxyze) &&
|
| 234 |
|
|
dinfo.ncomp != 3) {
|
| 235 |
|
|
fclose(fp);
|
| 236 |
|
|
return(NULL);
|
| 237 |
|
|
}
|
| 238 |
greg |
2.1 |
}
|
| 239 |
|
|
dnew = rmx_alloc(dinfo.nrows, dinfo.ncols, dinfo.ncomp);
|
| 240 |
|
|
if (dnew == NULL) {
|
| 241 |
|
|
fclose(fp);
|
| 242 |
|
|
return(NULL);
|
| 243 |
|
|
}
|
| 244 |
greg |
2.6 |
dnew->info = dinfo.info;
|
| 245 |
greg |
2.1 |
switch (dinfo.dtype) {
|
| 246 |
|
|
case DTascii:
|
| 247 |
|
|
if (!rmx_load_ascii(dnew, fp))
|
| 248 |
|
|
goto loaderr;
|
| 249 |
greg |
2.11 |
dnew->dtype = DTascii; /* should leave double? */
|
| 250 |
greg |
2.1 |
break;
|
| 251 |
|
|
case DTfloat:
|
| 252 |
|
|
if (!rmx_load_float(dnew, fp))
|
| 253 |
|
|
goto loaderr;
|
| 254 |
greg |
2.6 |
dnew->dtype = DTfloat;
|
| 255 |
greg |
2.1 |
break;
|
| 256 |
|
|
case DTdouble:
|
| 257 |
|
|
if (!rmx_load_double(dnew, fp))
|
| 258 |
|
|
goto loaderr;
|
| 259 |
greg |
2.6 |
dnew->dtype = DTdouble;
|
| 260 |
greg |
2.1 |
break;
|
| 261 |
|
|
case DTrgbe:
|
| 262 |
|
|
case DTxyze:
|
| 263 |
|
|
if (!rmx_load_rgbe(dnew, fp))
|
| 264 |
|
|
goto loaderr;
|
| 265 |
greg |
2.6 |
dnew->dtype = dinfo.dtype;
|
| 266 |
greg |
2.1 |
break;
|
| 267 |
|
|
default:
|
| 268 |
|
|
goto loaderr;
|
| 269 |
|
|
}
|
| 270 |
|
|
if (fp != stdin)
|
| 271 |
|
|
fclose(fp);
|
| 272 |
|
|
return(dnew);
|
| 273 |
|
|
loaderr: /* should report error? */
|
| 274 |
|
|
fclose(fp);
|
| 275 |
|
|
rmx_free(dnew);
|
| 276 |
|
|
return(NULL);
|
| 277 |
|
|
}
|
| 278 |
|
|
|
| 279 |
|
|
static int
|
| 280 |
|
|
rmx_write_ascii(const RMATRIX *rm, FILE *fp)
|
| 281 |
|
|
{
|
| 282 |
|
|
int i, j, k;
|
| 283 |
|
|
#ifdef _WIN32
|
| 284 |
|
|
_setmode(fileno(fp), _O_TEXT);
|
| 285 |
|
|
#endif
|
| 286 |
|
|
for (i = 0; i < rm->nrows; i++) {
|
| 287 |
|
|
for (j = 0; j < rm->ncols; j++) {
|
| 288 |
|
|
for (k = 0; k < rm->ncomp; k++)
|
| 289 |
|
|
fprintf(fp, " %.15e", rmx_lval(rm,i,j,k));
|
| 290 |
|
|
fputc('\t', fp);
|
| 291 |
|
|
}
|
| 292 |
|
|
fputc('\n', fp);
|
| 293 |
|
|
}
|
| 294 |
|
|
return(1);
|
| 295 |
|
|
}
|
| 296 |
|
|
|
| 297 |
|
|
static int
|
| 298 |
|
|
rmx_write_float(const RMATRIX *rm, FILE *fp)
|
| 299 |
|
|
{
|
| 300 |
|
|
int i, j, k;
|
| 301 |
|
|
float val[100];
|
| 302 |
|
|
|
| 303 |
|
|
if (rm->ncomp > 100) {
|
| 304 |
|
|
fputs("Unsupported # components in rmx_write_float()\n", stderr);
|
| 305 |
|
|
exit(1);
|
| 306 |
|
|
}
|
| 307 |
|
|
for (i = 0; i < rm->nrows; i++)
|
| 308 |
|
|
for (j = 0; j < rm->ncols; j++) {
|
| 309 |
|
|
for (k = rm->ncomp; k--; )
|
| 310 |
|
|
val[k] = (float)rmx_lval(rm,i,j,k);
|
| 311 |
|
|
if (fwrite(val, sizeof(val[0]), rm->ncomp, fp) != rm->ncomp)
|
| 312 |
|
|
return(0);
|
| 313 |
|
|
}
|
| 314 |
|
|
return(1);
|
| 315 |
|
|
}
|
| 316 |
|
|
|
| 317 |
|
|
static int
|
| 318 |
|
|
rmx_write_double(const RMATRIX *rm, FILE *fp)
|
| 319 |
|
|
{
|
| 320 |
|
|
int i, j, k;
|
| 321 |
|
|
double val[100];
|
| 322 |
|
|
|
| 323 |
|
|
if (rm->ncomp > 100) {
|
| 324 |
|
|
fputs("Unsupported # components in rmx_write_double()\n", stderr);
|
| 325 |
|
|
exit(1);
|
| 326 |
|
|
}
|
| 327 |
|
|
for (i = 0; i < rm->nrows; i++)
|
| 328 |
|
|
for (j = 0; j < rm->ncols; j++) {
|
| 329 |
|
|
for (k = rm->ncomp; k--; )
|
| 330 |
|
|
val[k] = rmx_lval(rm,i,j,k);
|
| 331 |
|
|
if (fwrite(val, sizeof(val[0]), rm->ncomp, fp) != rm->ncomp)
|
| 332 |
|
|
return(0);
|
| 333 |
|
|
}
|
| 334 |
|
|
return(1);
|
| 335 |
|
|
}
|
| 336 |
|
|
|
| 337 |
|
|
static int
|
| 338 |
|
|
rmx_write_rgbe(const RMATRIX *rm, FILE *fp)
|
| 339 |
|
|
{
|
| 340 |
|
|
COLOR *scan = (COLOR *)malloc(sizeof(COLOR)*rm->ncols);
|
| 341 |
|
|
int i, j;
|
| 342 |
|
|
|
| 343 |
|
|
if (scan == NULL)
|
| 344 |
|
|
return(0);
|
| 345 |
|
|
for (i = 0; i < rm->nrows; i++) {
|
| 346 |
|
|
for (j = rm->ncols; j--; )
|
| 347 |
|
|
setcolor(scan[j], rmx_lval(rm,i,j,0),
|
| 348 |
|
|
rmx_lval(rm,i,j,1),
|
| 349 |
|
|
rmx_lval(rm,i,j,2) );
|
| 350 |
|
|
if (fwritescan(scan, rm->ncols, fp) < 0) {
|
| 351 |
|
|
free(scan);
|
| 352 |
|
|
return(0);
|
| 353 |
|
|
}
|
| 354 |
|
|
}
|
| 355 |
|
|
free(scan);
|
| 356 |
|
|
return(1);
|
| 357 |
|
|
}
|
| 358 |
|
|
|
| 359 |
greg |
2.6 |
/* Write matrix to file type indicated by dtype */
|
| 360 |
greg |
2.10 |
int
|
| 361 |
greg |
2.1 |
rmx_write(const RMATRIX *rm, int dtype, FILE *fp)
|
| 362 |
|
|
{
|
| 363 |
|
|
RMATRIX *mydm = NULL;
|
| 364 |
|
|
int ok = 1;
|
| 365 |
|
|
|
| 366 |
|
|
if ((rm == NULL) | (fp == NULL))
|
| 367 |
|
|
return(0);
|
| 368 |
|
|
/* complete header */
|
| 369 |
greg |
2.5 |
if (rm->info)
|
| 370 |
|
|
fputs(rm->info, fp);
|
| 371 |
greg |
2.6 |
if (dtype == DTfromHeader)
|
| 372 |
|
|
dtype = rm->dtype;
|
| 373 |
|
|
else if ((dtype == DTrgbe) & (rm->dtype == DTxyze))
|
| 374 |
|
|
dtype = DTxyze;
|
| 375 |
greg |
2.9 |
else if ((dtype == DTxyze) & (rm->dtype == DTrgbe))
|
| 376 |
greg |
2.6 |
dtype = DTrgbe;
|
| 377 |
greg |
2.1 |
if ((dtype != DTrgbe) & (dtype != DTxyze)) {
|
| 378 |
|
|
fprintf(fp, "NROWS=%d\n", rm->nrows);
|
| 379 |
|
|
fprintf(fp, "NCOLS=%d\n", rm->ncols);
|
| 380 |
|
|
fprintf(fp, "NCOMP=%d\n", rm->ncomp);
|
| 381 |
|
|
} else if (rm->ncomp != 3) { /* wrong # components? */
|
| 382 |
|
|
double cmtx[3];
|
| 383 |
|
|
if (rm->ncomp != 1) /* only convert grayscale */
|
| 384 |
|
|
return(0);
|
| 385 |
|
|
cmtx[0] = cmtx[1] = cmtx[2] = 1;
|
| 386 |
|
|
mydm = rmx_transform(rm, 3, cmtx);
|
| 387 |
|
|
if (mydm == NULL)
|
| 388 |
|
|
return(0);
|
| 389 |
|
|
rm = mydm;
|
| 390 |
|
|
}
|
| 391 |
|
|
fputformat((char *)cm_fmt_id[dtype], fp);
|
| 392 |
|
|
fputc('\n', fp);
|
| 393 |
|
|
switch (dtype) { /* write data */
|
| 394 |
|
|
case DTascii:
|
| 395 |
|
|
ok = rmx_write_ascii(rm, fp);
|
| 396 |
|
|
break;
|
| 397 |
|
|
case DTfloat:
|
| 398 |
|
|
ok = rmx_write_float(rm, fp);
|
| 399 |
|
|
break;
|
| 400 |
|
|
case DTdouble:
|
| 401 |
|
|
ok = rmx_write_double(rm, fp);
|
| 402 |
|
|
break;
|
| 403 |
|
|
case DTrgbe:
|
| 404 |
|
|
case DTxyze:
|
| 405 |
|
|
fprtresolu(rm->ncols, rm->nrows, fp);
|
| 406 |
|
|
ok = rmx_write_rgbe(rm, fp);
|
| 407 |
|
|
break;
|
| 408 |
|
|
default:
|
| 409 |
|
|
return(0);
|
| 410 |
|
|
}
|
| 411 |
|
|
ok &= (fflush(fp) == 0);
|
| 412 |
|
|
rmx_free(mydm);
|
| 413 |
greg |
2.10 |
return(ok);
|
| 414 |
greg |
2.1 |
}
|
| 415 |
|
|
|
| 416 |
|
|
/* Allocate and assign square identity matrix with n components */
|
| 417 |
|
|
RMATRIX *
|
| 418 |
|
|
rmx_identity(const int dim, const int n)
|
| 419 |
|
|
{
|
| 420 |
|
|
RMATRIX *rid = rmx_alloc(dim, dim, n);
|
| 421 |
greg |
2.12 |
int i, k;
|
| 422 |
greg |
2.1 |
|
| 423 |
|
|
if (rid == NULL)
|
| 424 |
|
|
return(NULL);
|
| 425 |
greg |
2.12 |
memset(rid->mtx, 0, sizeof(rid->mtx[0])*n*dim*dim);
|
| 426 |
greg |
2.1 |
for (i = dim; i--; )
|
| 427 |
greg |
2.12 |
for (k = n; k--; )
|
| 428 |
|
|
rmx_lval(rid,i,i,k) = 1;
|
| 429 |
greg |
2.1 |
return(rid);
|
| 430 |
|
|
}
|
| 431 |
|
|
|
| 432 |
|
|
/* Duplicate the given matrix */
|
| 433 |
|
|
RMATRIX *
|
| 434 |
|
|
rmx_copy(const RMATRIX *rm)
|
| 435 |
|
|
{
|
| 436 |
|
|
RMATRIX *dnew;
|
| 437 |
|
|
|
| 438 |
|
|
if (rm == NULL)
|
| 439 |
|
|
return(NULL);
|
| 440 |
|
|
dnew = rmx_alloc(rm->nrows, rm->ncols, rm->ncomp);
|
| 441 |
|
|
if (dnew == NULL)
|
| 442 |
|
|
return(NULL);
|
| 443 |
greg |
2.5 |
rmx_addinfo(dnew, rm->info);
|
| 444 |
greg |
2.6 |
dnew->dtype = rm->dtype;
|
| 445 |
greg |
2.1 |
memcpy(dnew->mtx, rm->mtx,
|
| 446 |
|
|
sizeof(rm->mtx[0])*rm->ncomp*rm->nrows*rm->ncols);
|
| 447 |
|
|
return(dnew);
|
| 448 |
|
|
}
|
| 449 |
|
|
|
| 450 |
greg |
2.2 |
/* Allocate and assign transposed matrix */
|
| 451 |
|
|
RMATRIX *
|
| 452 |
|
|
rmx_transpose(const RMATRIX *rm)
|
| 453 |
greg |
2.1 |
{
|
| 454 |
greg |
2.2 |
RMATRIX *dnew;
|
| 455 |
greg |
2.1 |
int i, j, k;
|
| 456 |
|
|
|
| 457 |
|
|
if (rm == NULL)
|
| 458 |
|
|
return(0);
|
| 459 |
greg |
2.2 |
dnew = rmx_alloc(rm->ncols, rm->nrows, rm->ncomp);
|
| 460 |
|
|
if (dnew == NULL)
|
| 461 |
|
|
return(NULL);
|
| 462 |
greg |
2.5 |
if (rm->info) {
|
| 463 |
|
|
rmx_addinfo(dnew, rm->info);
|
| 464 |
|
|
rmx_addinfo(dnew, "Transposed rows and columns\n");
|
| 465 |
|
|
}
|
| 466 |
greg |
2.6 |
dnew->dtype = rm->dtype;
|
| 467 |
greg |
2.2 |
for (i = dnew->nrows; i--; )
|
| 468 |
|
|
for (j = dnew->ncols; j--; )
|
| 469 |
|
|
for (k = dnew->ncomp; k--; )
|
| 470 |
|
|
rmx_lval(dnew,i,j,k) = rmx_lval(rm,j,i,k);
|
| 471 |
|
|
return(dnew);
|
| 472 |
greg |
2.1 |
}
|
| 473 |
|
|
|
| 474 |
|
|
/* Multiply (concatenate) two matrices and allocate the result */
|
| 475 |
|
|
RMATRIX *
|
| 476 |
|
|
rmx_multiply(const RMATRIX *m1, const RMATRIX *m2)
|
| 477 |
|
|
{
|
| 478 |
|
|
RMATRIX *mres;
|
| 479 |
|
|
int i, j, k, h;
|
| 480 |
|
|
|
| 481 |
|
|
if ((m1 == NULL) | (m2 == NULL) ||
|
| 482 |
|
|
(m1->ncomp != m2->ncomp) | (m1->ncols != m2->nrows))
|
| 483 |
|
|
return(NULL);
|
| 484 |
|
|
mres = rmx_alloc(m1->nrows, m2->ncols, m1->ncomp);
|
| 485 |
|
|
if (mres == NULL)
|
| 486 |
|
|
return(NULL);
|
| 487 |
greg |
2.6 |
i = rmx_newtype(m1->dtype, m2->dtype);
|
| 488 |
|
|
if (i)
|
| 489 |
|
|
mres->dtype = i;
|
| 490 |
|
|
else
|
| 491 |
|
|
rmx_addinfo(mres, rmx_mismatch_warn);
|
| 492 |
greg |
2.1 |
for (i = mres->nrows; i--; )
|
| 493 |
|
|
for (j = mres->ncols; j--; )
|
| 494 |
greg |
2.8 |
for (k = mres->ncomp; k--; ) {
|
| 495 |
greg |
2.1 |
long double d = 0;
|
| 496 |
greg |
2.8 |
for (h = m1->ncols; h--; )
|
| 497 |
greg |
2.1 |
d += (long double)rmx_lval(m1,i,h,k) *
|
| 498 |
|
|
(long double)rmx_lval(m2,h,j,k);
|
| 499 |
|
|
rmx_lval(mres,i,j,k) = (double)d;
|
| 500 |
|
|
}
|
| 501 |
|
|
return(mres);
|
| 502 |
|
|
}
|
| 503 |
|
|
|
| 504 |
|
|
/* Sum second matrix into first, applying scale factor beforehand */
|
| 505 |
|
|
int
|
| 506 |
|
|
rmx_sum(RMATRIX *msum, const RMATRIX *madd, const double sf[])
|
| 507 |
|
|
{
|
| 508 |
|
|
double *mysf = NULL;
|
| 509 |
|
|
int i, j, k;
|
| 510 |
|
|
|
| 511 |
|
|
if ((msum == NULL) | (madd == NULL) ||
|
| 512 |
|
|
(msum->nrows != madd->nrows) |
|
| 513 |
|
|
(msum->ncols != madd->ncols) |
|
| 514 |
|
|
(msum->ncomp != madd->ncomp))
|
| 515 |
|
|
return(0);
|
| 516 |
|
|
if (sf == NULL) {
|
| 517 |
|
|
mysf = (double *)malloc(sizeof(double)*msum->ncomp);
|
| 518 |
|
|
if (mysf == NULL)
|
| 519 |
|
|
return(0);
|
| 520 |
|
|
for (k = msum->ncomp; k--; )
|
| 521 |
|
|
mysf[k] = 1;
|
| 522 |
|
|
sf = mysf;
|
| 523 |
|
|
}
|
| 524 |
greg |
2.6 |
i = rmx_newtype(msum->dtype, madd->dtype);
|
| 525 |
|
|
if (i)
|
| 526 |
|
|
msum->dtype = i;
|
| 527 |
|
|
else
|
| 528 |
|
|
rmx_addinfo(msum, rmx_mismatch_warn);
|
| 529 |
greg |
2.1 |
for (i = msum->nrows; i--; )
|
| 530 |
|
|
for (j = msum->ncols; j--; )
|
| 531 |
|
|
for (k = msum->ncomp; k--; )
|
| 532 |
|
|
rmx_lval(msum,i,j,k) += sf[k] * rmx_lval(madd,i,j,k);
|
| 533 |
|
|
|
| 534 |
|
|
free(mysf);
|
| 535 |
|
|
return(1);
|
| 536 |
|
|
}
|
| 537 |
|
|
|
| 538 |
|
|
/* Scale the given matrix by the indicated scalar component vector */
|
| 539 |
|
|
int
|
| 540 |
|
|
rmx_scale(RMATRIX *rm, const double sf[])
|
| 541 |
|
|
{
|
| 542 |
|
|
int i, j, k;
|
| 543 |
|
|
|
| 544 |
|
|
if ((rm == NULL) | (sf == NULL))
|
| 545 |
|
|
return(0);
|
| 546 |
|
|
for (i = rm->nrows; i--; )
|
| 547 |
|
|
for (j = rm->ncols; j--; )
|
| 548 |
|
|
for (k = rm->ncomp; k--; )
|
| 549 |
|
|
rmx_lval(rm,i,j,k) *= sf[k];
|
| 550 |
|
|
|
| 551 |
|
|
return(1);
|
| 552 |
|
|
}
|
| 553 |
|
|
|
| 554 |
|
|
/* Allocate new matrix and apply component transformation */
|
| 555 |
|
|
RMATRIX *
|
| 556 |
|
|
rmx_transform(const RMATRIX *msrc, int n, const double cmat[])
|
| 557 |
|
|
{
|
| 558 |
|
|
int i, j, ks, kd;
|
| 559 |
|
|
RMATRIX *dnew;
|
| 560 |
|
|
|
| 561 |
|
|
if ((msrc == NULL) | (n <= 0) | (cmat == NULL))
|
| 562 |
|
|
return(NULL);
|
| 563 |
|
|
dnew = rmx_alloc(msrc->nrows, msrc->ncols, n);
|
| 564 |
|
|
if (dnew == NULL)
|
| 565 |
|
|
return(NULL);
|
| 566 |
greg |
2.6 |
dnew->dtype = msrc->dtype;
|
| 567 |
greg |
2.1 |
for (i = dnew->nrows; i--; )
|
| 568 |
|
|
for (j = dnew->ncols; j--; )
|
| 569 |
|
|
for (kd = dnew->ncomp; kd--; ) {
|
| 570 |
|
|
double d = 0;
|
| 571 |
|
|
for (ks = msrc->ncomp; ks--; )
|
| 572 |
|
|
d += cmat[kd*msrc->ncomp + ks] * rmx_lval(msrc,i,j,ks);
|
| 573 |
|
|
rmx_lval(dnew,i,j,kd) = d;
|
| 574 |
|
|
}
|
| 575 |
|
|
return(dnew);
|
| 576 |
|
|
}
|
| 577 |
|
|
|
| 578 |
|
|
/* Convert a color matrix to newly allocated RMATRIX buffer */
|
| 579 |
|
|
RMATRIX *
|
| 580 |
|
|
rmx_from_cmatrix(const CMATRIX *cm)
|
| 581 |
|
|
{
|
| 582 |
|
|
int i, j;
|
| 583 |
|
|
RMATRIX *dnew;
|
| 584 |
|
|
|
| 585 |
|
|
if (cm == NULL)
|
| 586 |
|
|
return(NULL);
|
| 587 |
|
|
dnew = rmx_alloc(cm->nrows, cm->ncols, 3);
|
| 588 |
|
|
if (dnew == NULL)
|
| 589 |
|
|
return(NULL);
|
| 590 |
greg |
2.6 |
dnew->dtype = DTfloat;
|
| 591 |
greg |
2.1 |
for (i = dnew->nrows; i--; )
|
| 592 |
|
|
for (j = dnew->ncols; j--; ) {
|
| 593 |
|
|
const COLORV *cv = cm_lval(cm,i,j);
|
| 594 |
|
|
rmx_lval(dnew,i,j,0) = cv[0];
|
| 595 |
|
|
rmx_lval(dnew,i,j,1) = cv[1];
|
| 596 |
|
|
rmx_lval(dnew,i,j,2) = cv[2];
|
| 597 |
|
|
}
|
| 598 |
|
|
return(dnew);
|
| 599 |
|
|
}
|
| 600 |
|
|
|
| 601 |
|
|
/* Convert general matrix to newly allocated CMATRIX buffer */
|
| 602 |
|
|
CMATRIX *
|
| 603 |
|
|
cm_from_rmatrix(const RMATRIX *rm)
|
| 604 |
|
|
{
|
| 605 |
|
|
int i, j;
|
| 606 |
|
|
CMATRIX *cnew;
|
| 607 |
|
|
|
| 608 |
|
|
if (rm == NULL || rm->ncomp != 3)
|
| 609 |
|
|
return(NULL);
|
| 610 |
|
|
cnew = cm_alloc(rm->nrows, rm->ncols);
|
| 611 |
|
|
if (cnew == NULL)
|
| 612 |
|
|
return(NULL);
|
| 613 |
|
|
for (i = cnew->nrows; i--; )
|
| 614 |
|
|
for (j = cnew->ncols; j--; ) {
|
| 615 |
|
|
COLORV *cv = cm_lval(cnew,i,j);
|
| 616 |
|
|
cv[0] = (COLORV)rmx_lval(rm,i,j,0);
|
| 617 |
|
|
cv[1] = (COLORV)rmx_lval(rm,i,j,1);
|
| 618 |
|
|
cv[2] = (COLORV)rmx_lval(rm,i,j,2);
|
| 619 |
|
|
}
|
| 620 |
|
|
return(cnew);
|
| 621 |
|
|
}
|
