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root/Development/ray/src/util/rmatrix.c

Comparing ray/src/util/rmatrix.c (file contents):
Revision 2.4 by greg, Thu Jul 24 16:28:17 2014 UTC vs.
Revision 2.102 by greg, Thu Oct 30 16:47:54 2025 UTC

#	Line 5 | Line 5 | static const char RCSid[] = "$Id$";
5		* General matrix operations.
6		*/
7
8	–	#include <stdio.h>
8		#include <stdlib.h>
9	<	#include <string.h>
10	<	#include <fcntl.h>
9	>	#include <errno.h>
10	>	#include "rtio.h"
11	>	#include "platform.h"
12		#include "resolu.h"
13	+	#include "paths.h"
14		#include "rmatrix.h"
15	+	#if !defined(_WIN32) && !defined(_WIN64)
16	+	#include <sys/mman.h>
17	+	#endif
18
19	<	typedef struct {
16	<	int     nrows, ncols, ncomp;
17	<	int     dtype;
18	<	} DMINFO;
19	>	static const char       rmx_mismatch_warn[] = "WARNING: data type mismatch\n";
20
21	<	/* Allocate a nr x nc matrix with n components */
21	>	/* Initialize a RMATRIX struct but don't allocate array space */
22		RMATRIX *
23	<	rmx_alloc(int nr, int nc, int n)
23	>	rmx_new(int nr, int nc, int ncomp)
24		{
25		RMATRIX *dnew;
26
27	<	if ((nr <= 0) | (nc <= 0) | (n <= 0))
27	>	if (ncomp <= 0)
28		return(NULL);
29	<	dnew = (RMATRIX *)malloc(sizeof(RMATRIX)-sizeof(dnew->mtx) +
30	<	sizeof(dnew->mtx[0])*(n*nr*nc));
31	<	if (dnew == NULL)
29	>
30	>	dnew = (RMATRIX *)calloc(1, sizeof(RMATRIX));
31	>	if (!dnew)
32		return(NULL);
33	<	dnew->nrows = nr; dnew->ncols = nc; dnew->ncomp = n;
33	>
34	>	dnew->dtype = DTrmx_native;
35	>	dnew->nrows = nr;
36	>	dnew->ncols = nc;
37	>	dnew->ncomp = ncomp;
38	>	setcolor(dnew->cexp, 1.f, 1.f, 1.f);
39	>	memcpy(dnew->wlpart, WLPART, sizeof(dnew->wlpart));
40	>
41		return(dnew);
42		}
43
44	+	/* Prepare a RMATRIX for writing (allocate array if needed) */
45	+	int
46	+	rmx_prepare(RMATRIX *rm)
47	+	{
48	+	if (!rm) return(0);
49	+	if (rm->mtx)                    /* assume it's right size */
50	+	return(1);
51	+	if ((rm->nrows <= 0) | (rm->ncols <= 0) | (rm->ncomp <= 0))
52	+	return(0);
53	+	rm->mtx = (rmx_dtype *)malloc(rmx_array_size(rm));
54	+	rm->pflags |= RMF_FREEMEM;
55	+	return(rm->mtx != NULL);
56	+	}
57	+
58	+	/* Call rmx_new() and rmx_prepare() */
59	+	RMATRIX *
60	+	rmx_alloc(int nr, int nc, int ncomp)
61	+	{
62	+	RMATRIX *dnew = rmx_new(nr, nc, ncomp);
63	+
64	+	if (!rmx_prepare(dnew)) {
65	+	rmx_free(dnew);
66	+	return(NULL);
67	+	}
68	+	return(dnew);
69	+	}
70	+
71	+	/* Clear state by freeing info and matrix data */
72	+	void
73	+	rmx_reset(RMATRIX *rm)
74	+	{
75	+	if (!rm) return;
76	+	if (rm->info) {
77	+	free(rm->info);
78	+	rm->info = NULL;
79	+	}
80	+	#ifdef MAP_FILE
81	+	if (rm->mapped) {
82	+	munmap(rm->mapped, rmx_mapped_size(rm));
83	+	rm->mapped = NULL;
84	+	} else
85	+	#endif
86	+	if (rm->pflags & RMF_FREEMEM) {
87	+	free(rm->mtx);
88	+	rm->pflags &= ~RMF_FREEMEM;
89	+	}
90	+	rm->mtx = NULL;
91	+	}
92	+
93	+	/* Free an RMATRIX struct and data */
94	+	void
95	+	rmx_free(RMATRIX *rm)
96	+	{
97	+	if (!rm) return;
98	+	rmx_reset(rm);
99	+	free(rm);
100	+	}
101	+
102	+	/* Resolve data type based on two input types (returns 0 for mismatch) */
103	+	int
104	+	rmx_newtype(int dtyp1, int dtyp2)
105	+	{
106	+	if ((dtyp1==DTxyze) | (dtyp1==DTrgbe) | (dtyp1==DTspec) |
107	+	(dtyp2==DTxyze) | (dtyp2==DTrgbe) | (dtyp2==DTspec)
108	+	&& dtyp1 != dtyp2)
109	+	return(0);
110	+	if (dtyp1 < dtyp2)
111	+	return(dtyp1);
112	+	return(dtyp2);
113	+	}
114	+
115	+	/* Append header information associated with matrix data */
116	+	int
117	+	rmx_addinfo(RMATRIX *rm, const char *info)
118	+	{
119	+	size_t  oldlen = 0;
120	+
121	+	if (!rm || !info || !*info)
122	+	return(0);
123	+	if (!rm->info) {
124	+	rm->info = (char *)malloc(strlen(info)+1);
125	+	} else {
126	+	oldlen = strlen(rm->info);
127	+	rm->info = (char *)realloc(rm->info,
128	+	oldlen+strlen(info)+1);
129	+	}
130	+	if (!rm->info)
131	+	return(0);
132	+	strcpy(rm->info+oldlen, info);
133	+	return(1);
134	+	}
135	+
136		static int
137		get_dminfo(char *s, void *p)
138		{
139	<	DMINFO  *ip = (DMINFO *)p;
140	<	char    fmt[32];
139	>	RMATRIX *ip = (RMATRIX *)p;
140	>	char    fmt[MAXFMTLEN];
141		int     i;
142
143	<	if (!strncmp(s, "NCOMP=", 6)) {
44	<	ip->ncomp = atoi(s+6);
143	>	if (isheadid(s))
144		return(0);
145	+	if (isncomp(s)) {
146	+	ip->ncomp = ncompval(s);
147	+	return(ip->ncomp - 1);
148		}
149		if (!strncmp(s, "NROWS=", 6)) {
150		ip->nrows = atoi(s+6);
151	<	return(0);
151	>	return(ip->nrows - 1);
152		}
153		if (!strncmp(s, "NCOLS=", 6)) {
154		ip->ncols = atoi(s+6);
155	+	return(ip->ncols - 1);
156	+	}
157	+	if ((i = isbigendian(s)) >= 0) {
158	+	if (nativebigendian() != i)
159	+	ip->pflags |= RMF_SWAPIN;
160	+	else
161	+	ip->pflags &= ~RMF_SWAPIN;
162		return(0);
163		}
164	<	if (!formatval(fmt, s))
164	>	if (isexpos(s)) {
165	>	float   f = exposval(s);
166	>	scalecolor(ip->cexp, f);
167	>	return(f > .0 ? 0 : -1);
168	>	}
169	>	if (iscolcor(s)) {
170	>	COLOR   ctmp;
171	>	if (!colcorval(ctmp, s)) return(-1);
172	>	multcolor(ip->cexp, ctmp);
173		return(0);
174	+	}
175	+	if (iswlsplit(s))
176	+	return(wlsplitval(ip->wlpart, s) - 1);
177	+
178	+	if (!formatval(fmt, s)) {
179	+	rmx_addinfo(ip, s);
180	+	return(0);
181	+	}                       /* else check format */
182		for (i = 1; i < DTend; i++)
183		if (!strcmp(fmt, cm_fmt_id[i])) {
184		ip->dtype = i;
185		return(0);
186		}
187	<	return(-1);
187	>	return(-1);             /* bad format */
188		}
189
190		static int
191	<	rmx_load_ascii(RMATRIX *rm, FILE *fp)
191	>	rmx_load_ascii(rmx_dtype *drp, const RMATRIX *rm, FILE *fp)
192		{
193	<	int     i, j, k;
194	<	#ifdef _WIN32
195	<	_setmode(fileno(fp), _O_TEXT);
196	<	#endif
197	<	for (i = 0; i < rm->nrows; i++)
198	<	for (j = 0; j < rm->ncols; j++)
74	<	for (k = 0; k < rm->ncomp; k++)
75	<	if (fscanf(fp, "%lf", &rmx_lval(rm,i,j,k)) != 1)
76	<	return(0);
193	>	int     j, k;
194	>
195	>	for (j = 0; j < rm->ncols; j++)
196	>	for (k = rm->ncomp; k-- > 0; )
197	>	if (fscanf(fp, rmx_scanfmt, drp++) != 1)
198	>	return(0);
199		return(1);
200		}
201
202		static int
203	<	rmx_load_float(RMATRIX *rm, FILE *fp)
203	>	rmx_load_float(rmx_dtype *drp, const RMATRIX *rm, FILE *fp)
204		{
205	<	int     i, j, k;
206	<	float   val[100];
205	>	#if DTrmx_native==DTfloat
206	>	if (getbinary(drp, sizeof(*drp)*rm->ncomp, rm->ncols, fp) != rm->ncols)
207	>	return(0);
208	>	if (rm->pflags & RMF_SWAPIN)
209	>	swap32((char *)drp, rm->ncols*rm->ncomp);
210	>	#else
211	>	int     j, k;
212	>	float   val[MAXCOMP];
213
214	<	if (rm->ncomp > 100) {
214	>	if (rm->ncomp > MAXCOMP) {
215		fputs("Unsupported # components in rmx_load_float()\n", stderr);
216		exit(1);
217		}
218	<	for (i = 0; i < rm->nrows; i++)
219	<	for (j = 0; j < rm->ncols; j++) {
220	<	if (fread(val, sizeof(val[0]), rm->ncomp, fp) != rm->ncomp)
221	<	return(0);
222	<	for (k = rm->ncomp; k--; )
223	<	rmx_lval(rm,i,j,k) = val[k];
224	<	}
218	>	for (j = 0; j < rm->ncols; j++) {
219	>	if (getbinary(val, sizeof(val[0]), rm->ncomp, fp) != rm->ncomp)
220	>	return(0);
221	>	if (rm->pflags & RMF_SWAPIN)
222	>	swap32((char *)val, rm->ncomp);
223	>	for (k = 0; k < rm->ncomp; k++)
224	>	*drp++ = val[k];
225	>	}
226	>	#endif
227		return(1);
228		}
229
230		static int
231	<	rmx_load_double(RMATRIX *rm, FILE *fp)
231	>	rmx_load_double(rmx_dtype *drp, const RMATRIX *rm, FILE *fp)
232		{
233	<	int     i, j, k;
234	<	double  val[100];
233	>	#if DTrmx_native==DTdouble
234	>	if (getbinary(drp, sizeof(*drp)*rm->ncomp, rm->ncols, fp) != rm->ncols)
235	>	return(0);
236	>	if (rm->pflags & RMF_SWAPIN)
237	>	swap64((char *)drp, rm->ncols*rm->ncomp);
238	>	#else
239	>	int     j, k;
240	>	double  val[MAXCOMP];
241
242	<	if (rm->ncomp > 100) {
242	>	if (rm->ncomp > MAXCOMP) {
243		fputs("Unsupported # components in rmx_load_double()\n", stderr);
244		exit(1);
245		}
246	<	for (i = 0; i < rm->nrows; i++)
247	<	for (j = 0; j < rm->ncols; j++) {
248	<	if (fread(val, sizeof(val[0]), rm->ncomp, fp) != rm->ncomp)
249	<	return(0);
250	<	for (k = rm->ncomp; k--; )
251	<	rmx_lval(rm,i,j,k) = val[k];
252	<	}
246	>	for (j = 0; j < rm->ncols; j++) {
247	>	if (getbinary(val, sizeof(val[0]), rm->ncomp, fp) != rm->ncomp)
248	>	return(0);
249	>	if (rm->pflags & RMF_SWAPIN)
250	>	swap64((char *)val, rm->ncomp);
251	>	for (k = 0; k < rm->ncomp; k++)
252	>	*drp++ = (float)val[k];
253	>	}
254	>	#endif
255		return(1);
256		}
257
258		static int
259	<	rmx_load_rgbe(RMATRIX *rm, FILE *fp)
259	>	rmx_load_rgbe(rmx_dtype *drp, const RMATRIX *rm, FILE *fp)
260		{
261	<	COLOR   *scan = (COLOR *)malloc(sizeof(COLOR)*rm->ncols);
262	<	int     i, j;
261	>	COLR    *scan;
262	>	COLOR   col;
263	>	int     j;
264
265	<	if (scan == NULL)
265	>	if (rm->ncomp != 3)
266		return(0);
267	<	for (i = 0; i < rm->nrows; i++) {
268	<	if (freadscan(scan, rm->ncols, fp) < 0) {
130	<	free(scan);
267	>	scan = (COLR *)tempbuffer(sizeof(COLR)*rm->ncols);
268	>	if (!scan)
269		return(0);
270	<	}
271	<	for (j = rm->ncols; j--; ) {
272	<	rmx_lval(rm,i,j,0) = colval(scan[j],RED);
273	<	rmx_lval(rm,i,j,1) = colval(scan[j],GRN);
274	<	rmx_lval(rm,i,j,2) = colval(scan[j],BLU);
275	<	}
270	>	if (freadcolrs(scan, rm->ncols, fp) < 0)
271	>	return(0);
272	>	for (j = 0; j < rm->ncols; j++) {
273	>	colr_color(col, scan[j]);
274	>	*drp++ = colval(col,RED);
275	>	*drp++ = colval(col,GRN);
276	>	*drp++ = colval(col,BLU);
277		}
139	–	free(scan);
278		return(1);
279		}
280
281	+	#if DTrmx_native==DTfloat
282	+	static int
283	+	rmx_load_spec(rmx_dtype *drp, const RMATRIX *rm, FILE *fp)
284	+	{
285	+	COLRV   *scan;
286	+	int     j;
287	+
288	+	if ((rm->ncomp < 3) | (rm->ncomp > MAXCOMP))
289	+	return(0);
290	+	scan = (COLRV *)tempbuffer((rm->ncomp+1)*rm->ncols);
291	+	if (!scan)
292	+	return(0);
293	+	if (freadscolrs(scan, rm->ncomp, rm->ncols, fp) < 0)
294	+	return(0);
295	+	for (j = 0; j < rm->ncols; j++, drp += rm->ncomp)
296	+	scolr2scolor(drp, scan+j*(rm->ncomp+1), rm->ncomp);
297	+	return(1);
298	+	}
299	+	#else
300	+	static int
301	+	rmx_load_spec(rmx_dtype *drp, const RMATRIX *rm, FILE *fp)
302	+	{
303	+	COLRV   *scan;
304	+	COLORV  scol[MAXCOMP];
305	+	int     j, k;
306	+
307	+	if ((rm->ncomp < 3) | (rm->ncomp > MAXCOMP))
308	+	return(0);
309	+	scan = (COLRV *)tempbuffer((rm->ncomp+1)*rm->ncols);
310	+	if (!scan)
311	+	return(0);
312	+	if (freadscolrs(scan, rm->ncomp, rm->ncols, fp) < 0)
313	+	return(0);
314	+	for (j = 0; j < rm->ncols; j++) {
315	+	scolr2scolor(scol, scan+j*(rm->ncomp+1), rm->ncomp);
316	+	for (k = 0; k < rm->ncomp; k++)
317	+	*drp++ = scol[k];
318	+	}
319	+	return(1);
320	+	}
321	+	#endif
322	+
323	+	/* Read matrix header from input stream (cannot be XML) */
324	+	int
325	+	rmx_load_header(RMATRIX *rm, FILE *fp)
326	+	{
327	+	if (!rm | !fp)
328	+	return(0);
329	+	rmx_reset(rm);                          /* clear state */
330	+	if (rm->nrows | rm->ncols | !rm->dtype) {
331	+	rm->nrows = rm->ncols = 0;
332	+	rm->ncomp = 3;
333	+	setcolor(rm->cexp, 1.f, 1.f, 1.f);
334	+	memcpy(rm->wlpart, WLPART, sizeof(rm->wlpart));
335	+	rm->pflags = 0;
336	+	}
337	+	rm->dtype = DTascii;                    /* assumed w/o FORMAT */
338	+	if (getheader(fp, get_dminfo, rm) < 0) {
339	+	fputs("Bad matrix header\n", stderr);
340	+	return(0);
341	+	}
342	+	if ((rm->dtype == DTrgbe) | (rm->dtype == DTxyze) &&
343	+	rm->ncomp != 3)
344	+	return(0);
345	+	if (rm->ncols <= 0 &&                   /* resolution string? */
346	+	!fscnresolu(&rm->ncols, &rm->nrows, fp))
347	+	return(0);
348	+	if (rm->dtype == DTascii)               /* set file type (WINDOWS) */
349	+	SET_FILE_TEXT(fp);
350	+	else
351	+	SET_FILE_BINARY(fp);
352	+	return(1);
353	+	}
354	+
355	+	/* Load next row as rmx_dtype (cannot be XML) */
356	+	int
357	+	rmx_load_row(rmx_dtype *drp, const RMATRIX *rm, FILE *fp)
358	+	{
359	+	switch (rm->dtype) {
360	+	case DTascii:
361	+	return(rmx_load_ascii(drp, rm, fp));
362	+	case DTfloat:
363	+	return(rmx_load_float(drp, rm, fp));
364	+	case DTdouble:
365	+	return(rmx_load_double(drp, rm, fp));
366	+	case DTrgbe:
367	+	case DTxyze:
368	+	return(rmx_load_rgbe(drp, rm, fp));
369	+	case DTspec:
370	+	return(rmx_load_spec(drp, rm, fp));
371	+	default:
372	+	fputs("Unsupported data type in rmx_load_row()\n", stderr);
373	+	}
374	+	return(0);
375	+	}
376	+
377	+	/* Allocate & load post-header data from stream given type set in rm->dtype */
378	+	int
379	+	rmx_load_data(RMATRIX *rm, FILE *fp)
380	+	{
381	+	int     i;
382	+	#ifdef MAP_FILE
383	+	long    pos;            /* map memory for file > 1MB if possible */
384	+	if ((rm->dtype == DTrmx_native) & !(rm->pflags & RMF_SWAPIN) &
385	+	(rmx_array_size(rm) >= 1L<<20) &&
386	+	(pos = ftell(fp)) >= 0 && !(pos % sizeof(rmx_dtype))) {
387	+	rm->mapped = mmap(NULL, rmx_array_size(rm)+pos, PROT_READ|PROT_WRITE,
388	+	MAP_PRIVATE, fileno(fp), 0);
389	+	if (rm->mapped != MAP_FAILED) {
390	+	if (rm->pflags & RMF_FREEMEM)
391	+	free(rm->mtx);
392	+	rm->mtx = (rmx_dtype *)rm->mapped + pos/sizeof(rmx_dtype);
393	+	rm->pflags &= ~RMF_FREEMEM;
394	+	return(1);
395	+	}               /* else fall back on reading into memory */
396	+	rm->mapped = NULL;
397	+	}
398	+	#endif
399	+	if (!rmx_prepare(rm)) { /* need in-core matrix array */
400	+	fprintf(stderr, "Cannot allocate %g MByte matrix array\n",
401	+	(1./(1L<<20))*(double)rmx_array_size(rm));
402	+	return(0);
403	+	}
404	+	for (i = 0; i < rm->nrows; i++)
405	+	if (!rmx_load_row(rmx_lval(rm,i,0), rm, fp))
406	+	return(0);
407	+	return(1);
408	+	}
409	+
410		/* Load matrix from supported file type */
411		RMATRIX *
412	<	rmx_load(const char *fname)
412	>	rmx_load(const char *inspec)
413		{
414	<	FILE            *fp = stdin;
148	<	DMINFO          dinfo;
414	>	FILE            *fp;
415		RMATRIX         *dnew;
416	+	int             ok;
417
418	<	if (fname == NULL) {                    /* reading from stdin? */
419	<	fname = "<stdin>";
420	<	} else {
421	<	const char      *sp = fname;    /* check suffix */
422	<	while (*sp)
423	<	++sp;
424	<	while (sp > fname && sp[-1] != '.')
425	<	--sp;
426	<	if (!strcasecmp(sp, "XML")) {   /* assume it's a BSDF */
427	<	CMATRIX *cm = cm_loadBTDF((char *)fname);
428	<	if (cm == NULL)
429	<	return(NULL);
430	<	dnew = rmx_from_cmatrix(cm);
164	<	cm_free(cm);
165	<	return(dnew);
166	<	}
167	<	/* else open it ourselves */
168	<	if ((fp = fopen(fname, "rb")) == NULL)
169	<	return(NULL);
418	>	if (!inspec)
419	>	inspec = stdin_name;
420	>	else if (!*inspec)
421	>	return(NULL);
422	>	if (inspec == stdin_name)               /* reading from stdin? */
423	>	fp = stdin;
424	>	else if (inspec[0] == '!')
425	>	fp = popen(inspec+1, "r");
426	>	else
427	>	fp = fopen(inspec, "r");
428	>	if (!fp) {
429	>	fprintf(stderr, "Cannot open for reading: %s\n", inspec);
430	>	return(NULL);
431		}
432		#ifdef getc_unlocked
433		flockfile(fp);
434		#endif
435	<	dinfo.nrows = dinfo.ncols = dinfo.ncomp = 0;
436	<	dinfo.dtype = DTascii;
437	<	if (getheader(fp, get_dminfo, &dinfo) < 0) {
438	<	fclose(fp);
435	>	SET_FILE_BINARY(fp);                    /* load header info */
436	>	if (!rmx_load_header(dnew = rmx_new(0,0,3), fp)) {
437	>	fprintf(stderr, "Bad header in: %s\n", inspec);
438	>	if (inspec[0] == '!') pclose(fp);
439	>	else fclose(fp);
440	>	rmx_free(dnew);
441		return(NULL);
442		}
443	<	if ((dinfo.nrows <= 0) | (dinfo.ncols <= 0)) {
444	<	if (!fscnresolu(&dinfo.ncols, &dinfo.nrows, fp)) {
443	>	ok = rmx_load_data(dnew, fp);           /* allocate & load data */
444	>
445	>	if (fp != stdin) {                      /* close input stream */
446	>	if (inspec[0] == '!')
447	>	ok &= pclose(fp)==0;
448	>	else
449		fclose(fp);
183	–	return(NULL);
184	–	}
185	–	if (dinfo.ncomp <= 0)
186	–	dinfo.ncomp = 3;
187	–	else if ((dinfo.dtype == DTrgbe) | (dinfo.dtype == DTxyze) &&
188	–	dinfo.ncomp != 3) {
189	–	fclose(fp);
190	–	return(NULL);
191	–	}
450		}
451	<	dnew = rmx_alloc(dinfo.nrows, dinfo.ncols, dinfo.ncomp);
452	<	if (dnew == NULL) {
453	<	fclose(fp);
451	>	#ifdef getc_unlocked
452	>	else
453	>	funlockfile(fp);
454	>	#endif
455	>	if (!ok) {                              /* load failure? */
456	>	fprintf(stderr, "Error loading data from: %s\n", inspec);
457	>	rmx_free(dnew);
458		return(NULL);
459		}
460	<	switch (dinfo.dtype) {
461	<	case DTascii:
462	<	if (!rmx_load_ascii(dnew, fp))
463	<	goto loaderr;
464	<	break;
465	<	case DTfloat:
466	<	if (!rmx_load_float(dnew, fp))
467	<	goto loaderr;
468	<	break;
469	<	case DTdouble:
470	<	if (!rmx_load_double(dnew, fp))
471	<	goto loaderr;
472	<	break;
473	<	case DTrgbe:
474	<	case DTxyze:
475	<	if (!rmx_load_rgbe(dnew, fp))
476	<	goto loaderr;
477	<	break;
216	<	default:
217	<	goto loaderr;
460	>	/* undo exposure? */
461	>	if ((dnew->cexp[0] != 1.f) |
462	>	(dnew->cexp[1] != 1.f) | (dnew->cexp[2] != 1.f)) {
463	>	double  cmlt[MAXCOMP];
464	>	int     i;
465	>	if (dnew->ncomp > MAXCOMP) {
466	>	fprintf(stderr, "Excess spectral components in: %s\n",
467	>	inspec);
468	>	rmx_free(dnew);
469	>	return(NULL);
470	>	}
471	>	cmlt[0] = 1./dnew->cexp[0];
472	>	cmlt[1] = 1./dnew->cexp[1];
473	>	cmlt[2] = 1./dnew->cexp[2];
474	>	for (i = dnew->ncomp; i-- > 3; )
475	>	cmlt[i] = cmlt[1];      /* XXX hack! */
476	>	rmx_scale(dnew, cmlt);
477	>	setcolor(dnew->cexp, 1.f, 1.f, 1.f);
478		}
219	–	if (fp != stdin)
220	–	fclose(fp);
479		return(dnew);
222	–	loaderr:                                        /* should report error? */
223	–	fclose(fp);
224	–	rmx_free(dnew);
225	–	return(NULL);
480		}
481
482	+	#if DTrmx_native==DTdouble
483		static int
484	<	rmx_write_ascii(const RMATRIX *rm, FILE *fp)
484	>	rmx_write_float(const rmx_dtype *dp, int len, FILE *fp)
485		{
486	<	int     i, j, k;
487	<	#ifdef _WIN32
488	<	_setmode(fileno(fp), _O_TEXT);
489	<	#endif
490	<	for (i = 0; i < rm->nrows; i++) {
491	<	for (j = 0; j < rm->ncols; j++) {
237	<	for (k = 0; k < rm->ncomp; k++)
238	<	fprintf(fp, " %.15e", rmx_lval(rm,i,j,k));
239	<	fputc('\t', fp);
240	<	}
241	<	fputc('\n', fp);
486	>	float   val;
487	>
488	>	while (len--) {
489	>	val = (float)*dp++;
490	>	if (putbinary(&val, sizeof(val), 1, fp) != 1)
491	>	return(0);
492		}
493		return(1);
494		}
495	<
495	>	#else
496		static int
497	<	rmx_write_float(const RMATRIX *rm, FILE *fp)
497	>	rmx_write_double(const rmx_dtype *dp, int len, FILE *fp)
498		{
499	<	int     i, j, k;
250	<	float   val[100];
499	>	double  val;
500
501	<	if (rm->ncomp > 100) {
502	<	fputs("Unsupported # components in rmx_write_float()\n", stderr);
503	<	exit(1);
255	<	}
256	<	for (i = 0; i < rm->nrows; i++)
257	<	for (j = 0; j < rm->ncols; j++) {
258	<	for (k = rm->ncomp; k--; )
259	<	val[k] = (float)rmx_lval(rm,i,j,k);
260	<	if (fwrite(val, sizeof(val[0]), rm->ncomp, fp) != rm->ncomp)
501	>	while (len--) {
502	>	val = *dp++;
503	>	if (putbinary(&val, sizeof(val), 1, fp) != 1)
504		return(0);
505	<	}
505	>	}
506		return(1);
507		}
508	+	#endif
509
510		static int
511	<	rmx_write_double(const RMATRIX *rm, FILE *fp)
511	>	rmx_write_ascii(const rmx_dtype *dp, int ncomp, int len, FILE *fp)
512		{
513	<	int     i, j, k;
514	<	double  val[100];
513	>	while (len-- > 0) {
514	>	int     k = ncomp;
515	>	while (k-- > 0)
516	>	fprintf(fp, " %.7e", *dp++);
517	>	fputc('\t', fp);
518	>	}
519	>	return(fputc('\n', fp) != EOF);
520	>	}
521
522	<	if (rm->ncomp > 100) {
523	<	fputs("Unsupported # components in rmx_write_double()\n", stderr);
524	<	exit(1);
522	>	static int
523	>	rmx_write_rgbe(const rmx_dtype *dp, int ncomp, int len, FILE *fp)
524	>	{
525	>	COLR    *scan;
526	>	int     j;
527	>
528	>	if ((ncomp != 1) & (ncomp != 3)) return(0);
529	>	scan = (COLR *)tempbuffer(sizeof(COLR)*len);
530	>	if (!scan) return(0);
531	>
532	>	for (j = 0; j < len; j++, dp += ncomp)
533	>	if (ncomp == 1)
534	>	setcolr(scan[j], dp[0], dp[0], dp[0]);
535	>	else
536	>	setcolr(scan[j], dp[0], dp[1], dp[2]);
537	>
538	>	return(fwritecolrs(scan, len, fp) >= 0);
539	>	}
540	>
541	>	#if DTrmx_native==DTfloat
542	>	static int
543	>	rmx_write_spec(const rmx_dtype *dp, int ncomp, int len, FILE *fp)
544	>	{
545	>	COLRV   *scan;
546	>	int     j;
547	>
548	>	if ((ncomp < 3) | (ncomp > MAXCOMP)) return(0);
549	>	scan = (COLRV *)tempbuffer((ncomp+1)*len);
550	>	if (!scan) return(0);
551	>	for (j = 0; j < len; j++, dp += ncomp)
552	>	scolor2scolr(scan+j*(ncomp+1), dp, ncomp);
553	>
554	>	return(fwritescolrs(scan, ncomp, len, fp) >= 0);
555	>	}
556	>	#else
557	>	static int
558	>	rmx_write_spec(const rmx_dtype *dp, int ncomp, int len, FILE *fp)
559	>	{
560	>	COLRV   *scan;
561	>	COLORV  scol[MAXCOMP];
562	>	int     j, k;
563	>
564	>	if ((ncomp < 3) | (ncomp > MAXCOMP)) return(0);
565	>	scan = (COLRV *)tempbuffer((ncomp+1)*len);
566	>	if (!scan) return(0);
567	>	for (j = 0; j < len; j++, dp += ncomp) {
568	>	for (k = ncomp; k--; )
569	>	scol[k] = dp[k];
570	>	scolor2scolr(scan+j*(ncomp+1), scol, ncomp);
571		}
572	<	for (i = 0; i < rm->nrows; i++)
277	<	for (j = 0; j < rm->ncols; j++) {
278	<	for (k = rm->ncomp; k--; )
279	<	val[k] = rmx_lval(rm,i,j,k);
280	<	if (fwrite(val, sizeof(val[0]), rm->ncomp, fp) != rm->ncomp)
281	<	return(0);
282	<	}
283	<	return(1);
572	>	return(fwritescolrs(scan, ncomp, len, fp) >= 0);
573		}
574	+	#endif
575
576	+	/* Check if CIE XYZ primaries were specified */
577		static int
578	<	rmx_write_rgbe(const RMATRIX *rm, FILE *fp)
578	>	findCIEprims(const char *info)
579		{
580	<	COLOR   *scan = (COLOR *)malloc(sizeof(COLOR)*rm->ncols);
290	<	int     i, j;
580	>	RGBPRIMS        prims;
581
582	<	if (scan == NULL)
582	>	if (!info)
583		return(0);
584	<	for (i = 0; i < rm->nrows; i++) {
585	<	for (j = rm->ncols; j--; )
296	<	setcolor(scan[j],       rmx_lval(rm,i,j,0),
297	<	rmx_lval(rm,i,j,1),
298	<	rmx_lval(rm,i,j,2)      );
299	<	if (fwritescan(scan, rm->ncols, fp) < 0) {
300	<	free(scan);
584	>	info = strstr(info, PRIMARYSTR);
585	>	if (!info || !primsval(prims, info))
586		return(0);
587	<	}
588	<	}
589	<	free(scan);
590	<	return(1);
587	>
588	>	return((prims[RED][CIEX] > .99) & (prims[RED][CIEY] < .01) &&
589	>	(prims[GRN][CIEX] < .01) & (prims[GRN][CIEY] > .99) &&
590	>	(prims[BLU][CIEX] < .01) & (prims[BLU][CIEY] < .01));
591		}
592
593	<	/* Write matrix to file type indicated by dt */
594	<	long
595	<	rmx_write(const RMATRIX *rm, int dtype, FILE *fp)
593	>	/* Finish writing header data with resolution and format, returning type used */
594	>	int
595	>	rmx_write_header(const RMATRIX *rm, int dtype, FILE *fp)
596		{
597	<	RMATRIX *mydm = NULL;
313	<	int     ok = 1;
314	<
315	<	if ((rm == NULL) | (fp == NULL))
597	>	if (!rm | !fp || rm->ncols <= 0)
598		return(0);
599	<	/* complete header */
600	<	if ((dtype != DTrgbe) & (dtype != DTxyze)) {
601	<	fprintf(fp, "NROWS=%d\n", rm->nrows);
599	>	if (rm->info)
600	>	fputs(rm->info, fp);
601	>	if (dtype == DTfromHeader) {
602	>	dtype = rm->dtype;
603	>	#if DTrmx_native==DTfloat
604	>	if (dtype == DTdouble)          /* but stored as float? */
605	>	dtype = DTfloat;
606	>	#endif
607	>	} else if (dtype == DTrgbe && (rm->dtype == DTxyze ||
608	>	findCIEprims(rm->info)))
609	>	dtype = DTxyze;
610	>	else if ((dtype == DTxyze) & (rm->dtype == DTrgbe))
611	>	dtype = DTrgbe;
612	>	if ((dtype < DTspec) & (rm->ncomp > 3))
613	>	dtype = DTspec;
614	>	else if ((dtype == DTspec) & (rm->ncomp <= 3))
615	>	return(0);
616	>
617	>	if (dtype == DTascii)                   /* set file type (WINDOWS) */
618	>	SET_FILE_TEXT(fp);
619	>	else
620	>	SET_FILE_BINARY(fp);
621	>	/* write exposure? */
622	>	if (rm->ncomp == 3 && (rm->cexp[RED] != rm->cexp[GRN]) |
623	>	(rm->cexp[GRN] != rm->cexp[BLU]))
624	>	fputcolcor(rm->cexp, fp);
625	>	else if (rm->cexp[GRN] != 1.f)
626	>	fputexpos(rm->cexp[GRN], fp);
627	>	/* matrix size? */
628	>	if ((dtype > DTspec) | (rm->nrows <= 0)) {
629	>	if (rm->nrows > 0)
630	>	fprintf(fp, "NROWS=%d\n", rm->nrows);
631		fprintf(fp, "NCOLS=%d\n", rm->ncols);
321	–	fprintf(fp, "NCOMP=%d\n", rm->ncomp);
322	–	} else if (rm->ncomp != 3) {            /* wrong # components? */
323	–	double  cmtx[3];
324	–	if (rm->ncomp != 1)             /* only convert grayscale */
325	–	return(0);
326	–	cmtx[0] = cmtx[1] = cmtx[2] = 1;
327	–	mydm = rmx_transform(rm, 3, cmtx);
328	–	if (mydm == NULL)
329	–	return(0);
330	–	rm = mydm;
632		}
633	<	fputformat((char *)cm_fmt_id[dtype], fp);
634	<	fputc('\n', fp);
635	<	switch (dtype) {                        /* write data */
636	<	case DTascii:
637	<	ok = rmx_write_ascii(rm, fp);
638	<	break;
633	>	if (dtype >= DTspec) {                  /* # components & split? */
634	>	fputncomp(rm->ncomp, fp);
635	>	if (rm->ncomp > 3 &&
636	>	memcmp(rm->wlpart, WLPART, sizeof(WLPART)))
637	>	fputwlsplit(rm->wlpart, fp);
638	>	} else if ((rm->ncomp != 3) & (rm->ncomp != 1))
639	>	return(0);                      /* wrong # components */
640	>	if ((dtype == DTfloat) | (dtype == DTdouble))
641	>	fputendian(fp);                 /* important to record */
642	>	fputformat(cm_fmt_id[dtype], fp);
643	>	fputc('\n', fp);                        /* end of header */
644	>	if ((dtype <= DTspec) & (rm->nrows > 0))
645	>	fprtresolu(rm->ncols, rm->nrows, fp);
646	>	return(dtype);
647	>	}
648	>
649	>	/* Write out matrix data (usually by row) */
650	>	int
651	>	rmx_write_data(const rmx_dtype *dp, int ncomp, int len, int dtype, FILE *fp)
652	>	{
653	>	switch (dtype) {
654	>	#if DTrmx_native==DTdouble
655		case DTfloat:
656	<	ok = rmx_write_float(rm, fp);
657	<	break;
656	>	return(rmx_write_float(dp, ncomp*len, fp));
657	>	#else
658		case DTdouble:
659	<	ok = rmx_write_double(rm, fp);
660	<	break;
659	>	return(rmx_write_double(dp, ncomp*len, fp));
660	>	#endif
661	>	case DTrmx_native:
662	>	return(putbinary(dp, sizeof(*dp)*ncomp, len, fp) == len);
663	>	case DTascii:
664	>	return(rmx_write_ascii(dp, ncomp, len, fp));
665		case DTrgbe:
666		case DTxyze:
667	<	fprtresolu(rm->ncols, rm->nrows, fp);
668	<	ok = rmx_write_rgbe(rm, fp);
669	<	break;
349	<	default:
350	<	return(0);
667	>	return(rmx_write_rgbe(dp, ncomp, len, fp));
668	>	case DTspec:
669	>	return(rmx_write_spec(dp, ncomp, len, fp));
670		}
671	<	ok &= (fflush(fp) == 0);
353	<	rmx_free(mydm);
354	<	return(ftell(fp) * ok);         /* return # bytes written */
671	>	return(0);
672		}
673
674	+	/* Write matrix using file format indicated by dtype */
675	+	int
676	+	rmx_write(const RMATRIX *rm, int dtype, FILE *fp)
677	+	{
678	+	int     ok = 0;
679	+	int     i;
680	+	/* complete header */
681	+	dtype = rmx_write_header(rm, dtype, fp);
682	+	if (dtype <= 0)
683	+	return(0);
684	+	#ifdef getc_unlocked
685	+	flockfile(fp);
686	+	#endif
687	+	if (dtype == DTrmx_native)              /* write all at once? */
688	+	ok = rmx_write_data(rm->mtx, rm->ncomp,
689	+	rm->nrows*rm->ncols, dtype, fp);
690	+	else                                    /* else row by row */
691	+	for (i = 0; i < rm->nrows; i++) {
692	+	ok = rmx_write_data(rmx_val(rm,i,0), rm->ncomp,
693	+	rm->ncols, dtype, fp);
694	+	if (!ok) break;
695	+	}
696	+
697	+	if (ok) ok = (fflush(fp) == 0);
698	+	#ifdef getc_unlocked
699	+	funlockfile(fp);
700	+	#endif
701	+	if (!ok) fputs("Error writing matrix\n", stderr);
702	+	return(ok);
703	+	}
704	+
705		/* Allocate and assign square identity matrix with n components */
706		RMATRIX *
707		rmx_identity(const int dim, const int n)
708		{
709		RMATRIX *rid = rmx_alloc(dim, dim, n);
710	<	int     i;
710	>	int     i, k;
711
712	<	if (rid == NULL)
712	>	if (!rid)
713		return(NULL);
714	<	memset(rid->mtx, 0, sizeof(rid->mtx[0])*dim*dim);
715	<	for (i = dim; i--; )
716	<	rmx_lval(rid,i,i,0) = 1;
717	<	for (i = n; --i; )
718	<	memcpy(rid->mtx+i*(dim*dim), rid->mtx,
719	<	sizeof(rid->mtx[0])*dim*dim);
714	>	memset(rid->mtx, 0, rmx_array_size(rid));
715	>	for (i = dim; i--; ) {
716	>	rmx_dtype   *dp = rmx_lval(rid,i,i);
717	>	for (k = n; k--; )
718	>	dp[k] = 1.;
719	>	}
720		return(rid);
721		}
722
723	<	/* Duplicate the given matrix */
723	>	/* Duplicate the given matrix (may be unallocated) */
724		RMATRIX *
725		rmx_copy(const RMATRIX *rm)
726		{
727		RMATRIX *dnew;
728
729	<	if (rm == NULL)
729	>	if (!rm)
730		return(NULL);
731	<	dnew = rmx_alloc(rm->nrows, rm->ncols, rm->ncomp);
732	<	if (dnew == NULL)
731	>	dnew = rmx_new(rm->nrows, rm->ncols, rm->ncomp);
732	>	if (!dnew)
733		return(NULL);
734	<	memcpy(dnew->mtx, rm->mtx,
735	<	sizeof(rm->mtx[0])*rm->ncomp*rm->nrows*rm->ncols);
734	>	if (rm->mtx) {
735	>	if (!rmx_prepare(dnew)) {
736	>	rmx_free(dnew);
737	>	return(NULL);
738	>	}
739	>	memcpy(dnew->mtx, rm->mtx, rmx_array_size(dnew));
740	>	}
741	>	rmx_addinfo(dnew, rm->info);
742	>	dnew->dtype = rm->dtype;
743	>	copycolor(dnew->cexp, rm->cexp);
744	>	memcpy(dnew->wlpart, rm->wlpart, sizeof(dnew->wlpart));
745		return(dnew);
746		}
747
748	<	/* Allocate and assign transposed matrix */
749	<	RMATRIX *
750	<	rmx_transpose(const RMATRIX *rm)
748	>	/* Replace data in first matrix with data from second */
749	>	int
750	>	rmx_transfer_data(RMATRIX *rdst, RMATRIX *rsrc, int dometa)
751		{
752	<	RMATRIX *dnew;
753	<	int     i, j, k;
752	>	if (!rdst | !rsrc)
753	>	return(0);
754	>	if (dometa) {           /* transfer everything? */
755	>	rmx_reset(rdst);
756	>	*rdst = *rsrc;
757	>	rsrc->info = NULL; rsrc->mapped = NULL; rsrc->mtx = NULL;
758	>	return(1);
759	>	}
760	>	/* just matrix data -- leave metadata */
761	>	if ((rdst->nrows != rsrc->nrows) |
762	>	(rdst->ncols != rsrc->ncols) |
763	>	(rdst->ncomp != rsrc->ncomp))
764	>	return(0);
765	>	#ifdef MAP_FILE
766	>	if (rdst->mapped)
767	>	munmap(rdst->mapped, rmx_mapped_size(rdst));
768	>	else
769	>	#endif
770	>	if (rdst->pflags & RMF_FREEMEM) {
771	>	free(rdst->mtx);
772	>	rdst->pflags &= ~RMF_FREEMEM;
773	>	}
774	>	rdst->mapped = rsrc->mapped;
775	>	rdst->mtx = rsrc->mtx;
776	>	rdst->pflags |= rsrc->pflags & RMF_FREEMEM;
777	>	rsrc->mapped = NULL; rsrc->mtx = NULL;
778	>	return(1);
779	>	}
780
781	<	if (rm == NULL)
781	>	/* Transpose the given matrix */
782	>	int
783	>	rmx_transpose(RMATRIX *rm)
784	>	{
785	>	uby8            *bmap;
786	>	rmx_dtype       val[MAXCOMP];
787	>	RMATRIX         dold;
788	>	int             i, j;
789	>
790	>	if (!rm || !rm->mtx | (rm->ncomp > MAXCOMP))
791		return(0);
792	<	dnew = rmx_alloc(rm->ncols, rm->nrows, rm->ncomp);
793	<	if (dnew == NULL)
794	<	return(NULL);
795	<	for (i = dnew->nrows; i--; )
796	<	for (j = dnew->ncols; j--; )
797	<	for (k = dnew->ncomp; k--; )
798	<	rmx_lval(dnew,i,j,k) = rmx_lval(rm,j,i,k);
799	<	return(dnew);
792	>	if (rm->info)
793	>	rmx_addinfo(rm, "Transposed rows and columns\n");
794	>	if ((rm->nrows == 1) | (rm->ncols == 1)) { /* vector? */
795	>	j = rm->ncols;
796	>	rm->ncols = rm->nrows;
797	>	rm->nrows = j;
798	>	return(1);
799	>	}
800	>	if (rm->nrows == rm->ncols) {   /* square matrix case */
801	>	for (i = rm->nrows; --i > 0; )
802	>	for (j = i; j-- > 0; ) {
803	>	memcpy(val, rmx_val(rm,i,j),
804	>	sizeof(rmx_dtype)*rm->ncomp);
805	>	memcpy(rmx_lval(rm,i,j), rmx_val(rm,j,i),
806	>	sizeof(rmx_dtype)*rm->ncomp);
807	>	memcpy(rmx_lval(rm,j,i), val,
808	>	sizeof(rmx_dtype)*rm->ncomp);
809	>	}
810	>	return(1);
811	>	}
812	>	#define bmbyte(r,c)     bmap[((r)*rm->ncols+(c))>>3]
813	>	#define bmbit(r,c)      (1 << ((r)*rm->ncols+(c) & 7))
814	>	#define bmop(r,c, op)   (bmbyte(r,c) op bmbit(r,c))
815	>	#define bmtest(r,c)     bmop(r,c,&)
816	>	#define bmset(r,c)      bmop(r,c,|=)
817	>	/* loop completion bitmap */
818	>	bmap = (uby8 *)calloc(((size_t)rm->nrows*rm->ncols+7)>>3, 1);
819	>	if (!bmap)
820	>	return(0);
821	>	dold = *rm;
822	>	rm->ncols = dold.nrows; rm->nrows = dold.ncols;
823	>	for (i = rm->nrows; i--; )      /* try every starting point */
824	>	for (j = rm->ncols; j--; ) {
825	>	int     i0, j0;
826	>	int     i1 = i;
827	>	size_t  j1 = j;
828	>	if (bmtest(i, j))
829	>	continue;       /* traversed loop earlier */
830	>	memcpy(val, rmx_val(rm,i,j),
831	>	sizeof(rmx_dtype)*rm->ncomp);
832	>	for ( ; ; ) {           /* new transpose loop */
833	>	const rmx_dtype     *ds;
834	>	i0 = i1; j0 = j1;
835	>	ds = rmx_val(&dold, j0, i0);
836	>	j1 = (ds - dold.mtx)/dold.ncomp;
837	>	i1 = j1 / rm->ncols;
838	>	j1 -= (size_t)i1*rm->ncols;
839	>	bmset(i1, j1);      /* mark as done */
840	>	if ((i1 == i) & (j1 == j))
841	>	break;          /* back at start */
842	>	memcpy(rmx_lval(rm,i0,j0), ds,
843	>	sizeof(rmx_dtype)*rm->ncomp);
844	>	}                       /* complete the loop */
845	>	memcpy(rmx_lval(rm,i0,j0), val,
846	>	sizeof(rmx_dtype)*rm->ncomp);
847	>	}
848	>	free(bmap);                     /* all done! */
849	>	return(1);
850	>	#undef  bmbyte
851	>	#undef  bmbit
852	>	#undef  bmop
853	>	#undef  bmtest
854	>	#undef  bmset
855		}
856
857		/* Multiply (concatenate) two matrices and allocate the result */
#	Line 414 | Line 861 | rmx_multiply(const RMATRIX *m1, const RMATRIX *m2)
861		RMATRIX *mres;
862		int     i, j, k, h;
863
864	<	if ((m1 == NULL) | (m2 == NULL) ||
864	>	if (!m1 | !m2 || !m1->mtx | !m2->mtx |
865		(m1->ncomp != m2->ncomp) | (m1->ncols != m2->nrows))
866		return(NULL);
867		mres = rmx_alloc(m1->nrows, m2->ncols, m1->ncomp);
868	<	if (mres == NULL)
868	>	if (!mres)
869		return(NULL);
870	+	i = rmx_newtype(m1->dtype, m2->dtype);
871	+	if (i)
872	+	mres->dtype = i;
873	+	else
874	+	rmx_addinfo(mres, rmx_mismatch_warn);
875		for (i = mres->nrows; i--; )
876		for (j = mres->ncols; j--; )
877	<	for (h = m1->ncols; h--; ) {
878	<	long double d = 0;
879	<	for (k = mres->ncomp; k--; )
880	<	d += (long double)rmx_lval(m1,i,h,k) *
881	<	(long double)rmx_lval(m2,h,j,k);
882	<	rmx_lval(mres,i,j,k) = (double)d;
877	>	for (k = mres->ncomp; k--; ) {
878	>	double      d = 0;
879	>	for (h = m1->ncols; h--; )
880	>	d += (double)rmx_val(m1,i,h)[k] *
881	>	rmx_val(m2,h,j)[k];
882	>	rmx_lval(mres,i,j)[k] = (rmx_dtype)d;
883		}
884		return(mres);
885		}
886
887	+	/* Element-wise multiplication (or division) of m2 into m1 */
888	+	int
889	+	rmx_elemult(RMATRIX *m1, const RMATRIX *m2, int divide)
890	+	{
891	+	int     zeroDivides = 0;
892	+	int     i, j, k;
893	+
894	+	if (!m1 | !m2 || !m1->mtx | !m2->mtx |
895	+	(m1->ncols != m2->ncols) | (m1->nrows != m2->nrows))
896	+	return(0);
897	+	if ((m2->ncomp > 1) & (m2->ncomp != m1->ncomp))
898	+	return(0);
899	+	i = rmx_newtype(m1->dtype, m2->dtype);
900	+	if (i)
901	+	m1->dtype = i;
902	+	else
903	+	rmx_addinfo(m1, rmx_mismatch_warn);
904	+	for (i = m1->nrows; i--; )
905	+	for (j = m1->ncols; j--; )
906	+	if (divide) {
907	+	rmx_dtype   d;
908	+	if (m2->ncomp == 1) {
909	+	d = rmx_val(m2,i,j)[0];
910	+	if (d == 0) {
911	+	++zeroDivides;
912	+	for (k = m1->ncomp; k--; )
913	+	rmx_lval(m1,i,j)[k] = 0;
914	+	} else {
915	+	d = 1./d;
916	+	for (k = m1->ncomp; k--; )
917	+	rmx_lval(m1,i,j)[k] *= d;
918	+	}
919	+	} else
920	+	for (k = m1->ncomp; k--; ) {
921	+	d = rmx_val(m2,i,j)[k];
922	+	if (d == 0) {
923	+	++zeroDivides;
924	+	rmx_lval(m1,i,j)[k] = 0;
925	+	} else
926	+	rmx_lval(m1,i,j)[k] /= d;
927	+	}
928	+	} else {
929	+	if (m2->ncomp == 1) {
930	+	const rmx_dtype d = rmx_val(m2,i,j)[0];
931	+	for (k = m1->ncomp; k--; )
932	+	rmx_lval(m1,i,j)[k] *= d;
933	+	} else
934	+	for (k = m1->ncomp; k--; )
935	+	rmx_lval(m1,i,j)[k] *= rmx_val(m2,i,j)[k];
936	+	}
937	+	if (zeroDivides) {
938	+	rmx_addinfo(m1, "WARNING: zero divide(s) corrupted results\n");
939	+	errno = ERANGE;
940	+	}
941	+	return(1);
942	+	}
943	+
944		/* Sum second matrix into first, applying scale factor beforehand */
945		int
946		rmx_sum(RMATRIX *msum, const RMATRIX *madd, const double sf[])
#	Line 439 | Line 948 | rmx_sum(RMATRIX *msum, const RMATRIX *madd, const doub
948		double  *mysf = NULL;
949		int     i, j, k;
950
951	<	if ((msum == NULL) | (madd == NULL) ||
951	>	if (!msum | !madd || !msum->mtx | !madd->mtx |
952		(msum->nrows != madd->nrows) |
953		(msum->ncols != madd->ncols) |
954		(msum->ncomp != madd->ncomp))
955		return(0);
956	<	if (sf == NULL) {
956	>	if (!sf) {
957		mysf = (double *)malloc(sizeof(double)*msum->ncomp);
958	<	if (mysf == NULL)
958	>	if (!mysf)
959		return(0);
960		for (k = msum->ncomp; k--; )
961		mysf[k] = 1;
962		sf = mysf;
963		}
964	+	i = rmx_newtype(msum->dtype, madd->dtype);
965	+	if (i)
966	+	msum->dtype = i;
967	+	else
968	+	rmx_addinfo(msum, rmx_mismatch_warn);
969		for (i = msum->nrows; i--; )
970	<	for (j = msum->ncols; j--; )
970	>	for (j = msum->ncols; j--; ) {
971	>	const rmx_dtype *da = rmx_val(madd,i,j);
972	>	rmx_dtype       *ds = rmx_lval(msum,i,j);
973		for (k = msum->ncomp; k--; )
974	<	rmx_lval(msum,i,j,k) += sf[k] * rmx_lval(madd,i,j,k);
975	<
976	<	free(mysf);
974	>	ds[k] += (rmx_dtype)sf[k] * da[k];
975	>	}
976	>	if (mysf)
977	>	free(mysf);
978		return(1);
979		}
980
#	Line 467 | Line 984 | rmx_scale(RMATRIX *rm, const double sf[])
984		{
985		int     i, j, k;
986
987	<	if ((rm == NULL) | (sf == NULL))
987	>	if (!rm | !sf || !rm->mtx)
988		return(0);
989		for (i = rm->nrows; i--; )
990	<	for (j = rm->ncols; j--; )
990	>	for (j = rm->ncols; j--; ) {
991	>	rmx_dtype       *dp = rmx_lval(rm,i,j);
992		for (k = rm->ncomp; k--; )
993	<	rmx_lval(rm,i,j,k) *= sf[k];
994	<
993	>	dp[k] *= (rmx_dtype)sf[k];
994	>	}
995	>	if (rm->info)
996	>	rmx_addinfo(rm, "Applied scalar\n");
997	>	/* XXX: should record as exposure for COLR and SCOLR types? */
998		return(1);
999		}
1000
#	Line 484 | Line 1005 | rmx_transform(const RMATRIX *msrc, int n, const double
1005		int     i, j, ks, kd;
1006		RMATRIX *dnew;
1007
1008	<	if ((msrc == NULL) | (n <= 0) | (cmat == NULL))
1008	>	if (!msrc | (n <= 0) | !cmat || !msrc->mtx)
1009		return(NULL);
1010		dnew = rmx_alloc(msrc->nrows, msrc->ncols, n);
1011	<	if (dnew == NULL)
1011	>	if (!dnew)
1012		return(NULL);
1013	+	if (msrc->info) {
1014	+	char    buf[128];
1015	+	sprintf(buf, "Applied %dx%d component transform\n",
1016	+	dnew->ncomp, msrc->ncomp);
1017	+	rmx_addinfo(dnew, msrc->info);
1018	+	rmx_addinfo(dnew, buf);
1019	+	}
1020	+	dnew->dtype = msrc->dtype;
1021		for (i = dnew->nrows; i--; )
1022	<	for (j = dnew->ncols; j--; )
1022	>	for (j = dnew->ncols; j--; ) {
1023	>	const rmx_dtype *ds = rmx_val(msrc,i,j);
1024		for (kd = dnew->ncomp; kd--; ) {
1025		double      d = 0;
1026		for (ks = msrc->ncomp; ks--; )
1027	<	d += cmat[kd*msrc->ncomp + ks] * rmx_lval(msrc,i,j,ks);
1028	<	rmx_lval(dnew,i,j,kd) = d;
1027	>	d += cmat[kd*msrc->ncomp + ks] * ds[ks];
1028	>	rmx_lval(dnew,i,j)[kd] = (rmx_dtype)d;
1029		}
500	–	return(dnew);
501	–	}
502	–
503	–	/* Convert a color matrix to newly allocated RMATRIX buffer */
504	–	RMATRIX *
505	–	rmx_from_cmatrix(const CMATRIX *cm)
506	–	{
507	–	int     i, j;
508	–	RMATRIX *dnew;
509	–
510	–	if (cm == NULL)
511	–	return(NULL);
512	–	dnew = rmx_alloc(cm->nrows, cm->ncols, 3);
513	–	if (dnew == NULL)
514	–	return(NULL);
515	–	for (i = dnew->nrows; i--; )
516	–	for (j = dnew->ncols; j--; ) {
517	–	const COLORV    *cv = cm_lval(cm,i,j);
518	–	rmx_lval(dnew,i,j,0) = cv[0];
519	–	rmx_lval(dnew,i,j,1) = cv[1];
520	–	rmx_lval(dnew,i,j,2) = cv[2];
1030		}
1031		return(dnew);
1032		}
1033
525	–	/* Convert general matrix to newly allocated CMATRIX buffer */
526	–	CMATRIX *
527	–	cm_from_rmatrix(const RMATRIX *rm)
528	–	{
529	–	int     i, j;
530	–	CMATRIX *cnew;
531	–
532	–	if (rm == NULL || rm->ncomp != 3)
533	–	return(NULL);
534	–	cnew = cm_alloc(rm->nrows, rm->ncols);
535	–	if (cnew == NULL)
536	–	return(NULL);
537	–	for (i = cnew->nrows; i--; )
538	–	for (j = cnew->ncols; j--; ) {
539	–	COLORV  *cv = cm_lval(cnew,i,j);
540	–	cv[0] = (COLORV)rmx_lval(rm,i,j,0);
541	–	cv[1] = (COLORV)rmx_lval(rm,i,j,1);
542	–	cv[2] = (COLORV)rmx_lval(rm,i,j,2);
543	–	}
544	–	return(cnew);
545	–	}

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