1 |
greg |
2.1 |
#ifndef lint |
2 |
greg |
2.76 |
static const char RCSid[] = "$Id: rmatrix.c,v 2.75 2023/12/11 19:00:22 greg Exp $"; |
3 |
greg |
2.1 |
#endif |
4 |
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/* |
5 |
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* General matrix operations. |
6 |
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*/ |
7 |
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8 |
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#include <stdlib.h> |
9 |
greg |
2.25 |
#include <errno.h> |
10 |
greg |
2.21 |
#include "rtio.h" |
11 |
schorsch |
2.20 |
#include "platform.h" |
12 |
greg |
2.1 |
#include "resolu.h" |
13 |
greg |
2.19 |
#include "paths.h" |
14 |
greg |
2.1 |
#include "rmatrix.h" |
15 |
greg |
2.50 |
#if !defined(_WIN32) && !defined(_WIN64) |
16 |
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#include <sys/mman.h> |
17 |
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#endif |
18 |
greg |
2.1 |
|
19 |
greg |
2.60 |
static const char rmx_mismatch_warn[] = "WARNING: data type mismatch\n"; |
20 |
greg |
2.1 |
|
21 |
greg |
2.50 |
#define array_size(rm) (sizeof(double)*(rm)->nrows*(rm)->ncols*(rm)->ncomp) |
22 |
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#define mapped_size(rm) ((char *)(rm)->mtx + array_size(rm) - (char *)(rm)->mapped) |
23 |
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24 |
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/* Initialize a RMATRIX struct but don't allocate array space */ |
25 |
greg |
2.1 |
RMATRIX * |
26 |
greg |
2.50 |
rmx_new(int nr, int nc, int n) |
27 |
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{ |
28 |
greg |
2.60 |
RMATRIX *dnew; |
29 |
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30 |
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if (n <= 0) |
31 |
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return(NULL); |
32 |
greg |
2.50 |
|
33 |
greg |
2.60 |
dnew = (RMATRIX *)calloc(1, sizeof(RMATRIX)); |
34 |
greg |
2.69 |
if (!dnew) |
35 |
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return(NULL); |
36 |
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37 |
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dnew->dtype = DTdouble; |
38 |
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dnew->nrows = nr; |
39 |
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dnew->ncols = nc; |
40 |
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dnew->ncomp = n; |
41 |
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setcolor(dnew->cexp, 1.f, 1.f, 1.f); |
42 |
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memcpy(dnew->wlpart, WLPART, sizeof(dnew->wlpart)); |
43 |
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|
44 |
greg |
2.50 |
return(dnew); |
45 |
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} |
46 |
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47 |
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/* Prepare a RMATRIX for writing (allocate array if needed) */ |
48 |
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int |
49 |
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rmx_prepare(RMATRIX *rm) |
50 |
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{ |
51 |
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if (!rm) return(0); |
52 |
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if (rm->mtx) |
53 |
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return(1); |
54 |
greg |
2.60 |
if ((rm->nrows <= 0) | (rm->ncols <= 0) | (rm->ncomp <= 0)) |
55 |
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return(0); |
56 |
greg |
2.50 |
rm->mtx = (double *)malloc(array_size(rm)); |
57 |
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return(rm->mtx != NULL); |
58 |
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} |
59 |
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60 |
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/* Call rmx_new() and rmx_prepare() */ |
61 |
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RMATRIX * |
62 |
greg |
2.1 |
rmx_alloc(int nr, int nc, int n) |
63 |
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{ |
64 |
greg |
2.50 |
RMATRIX *dnew = rmx_new(nr, nc, n); |
65 |
greg |
2.1 |
|
66 |
greg |
2.50 |
if (dnew && !rmx_prepare(dnew)) { |
67 |
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rmx_free(dnew); |
68 |
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dnew = NULL; |
69 |
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} |
70 |
greg |
2.1 |
return(dnew); |
71 |
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} |
72 |
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|
73 |
greg |
2.67 |
/* Clear state by freeing info and matrix data */ |
74 |
greg |
2.6 |
void |
75 |
greg |
2.67 |
rmx_reset(RMATRIX *rm) |
76 |
greg |
2.6 |
{ |
77 |
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if (!rm) return; |
78 |
greg |
2.67 |
if (rm->info) { |
79 |
greg |
2.6 |
free(rm->info); |
80 |
greg |
2.67 |
rm->info = NULL; |
81 |
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} |
82 |
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if (rm->mtx) { |
83 |
greg |
2.50 |
#ifdef MAP_FILE |
84 |
greg |
2.67 |
if (rm->mapped) { |
85 |
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munmap(rm->mapped, mapped_size(rm)); |
86 |
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rm->mapped = NULL; |
87 |
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} else |
88 |
greg |
2.50 |
#endif |
89 |
greg |
2.67 |
free(rm->mtx); |
90 |
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rm->mtx = NULL; |
91 |
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} |
92 |
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} |
93 |
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94 |
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/* Free an RMATRIX struct and data */ |
95 |
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void |
96 |
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rmx_free(RMATRIX *rm) |
97 |
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{ |
98 |
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if (!rm) return; |
99 |
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rmx_reset(rm); |
100 |
greg |
2.6 |
free(rm); |
101 |
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} |
102 |
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103 |
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/* Resolve data type based on two input types (returns 0 for mismatch) */ |
104 |
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int |
105 |
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rmx_newtype(int dtyp1, int dtyp2) |
106 |
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{ |
107 |
greg |
2.60 |
if ((dtyp1==DTxyze) | (dtyp1==DTrgbe) | (dtyp1==DTspec) | |
108 |
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(dtyp2==DTxyze) | (dtyp2==DTrgbe) | (dtyp2==DTspec) |
109 |
greg |
2.14 |
&& dtyp1 != dtyp2) |
110 |
greg |
2.6 |
return(0); |
111 |
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if (dtyp1 < dtyp2) |
112 |
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return(dtyp1); |
113 |
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return(dtyp2); |
114 |
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} |
115 |
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116 |
greg |
2.5 |
/* Append header information associated with matrix data */ |
117 |
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int |
118 |
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rmx_addinfo(RMATRIX *rm, const char *info) |
119 |
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{ |
120 |
greg |
2.50 |
int oldlen = 0; |
121 |
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|
122 |
greg |
2.33 |
if (!rm || !info || !*info) |
123 |
greg |
2.5 |
return(0); |
124 |
greg |
2.8 |
if (!rm->info) { |
125 |
greg |
2.5 |
rm->info = (char *)malloc(strlen(info)+1); |
126 |
greg |
2.8 |
if (rm->info) rm->info[0] = '\0'; |
127 |
greg |
2.50 |
} else { |
128 |
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oldlen = strlen(rm->info); |
129 |
greg |
2.5 |
rm->info = (char *)realloc(rm->info, |
130 |
greg |
2.50 |
oldlen+strlen(info)+1); |
131 |
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} |
132 |
greg |
2.5 |
if (!rm->info) |
133 |
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return(0); |
134 |
greg |
2.50 |
strcpy(rm->info+oldlen, info); |
135 |
greg |
2.5 |
return(1); |
136 |
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} |
137 |
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138 |
greg |
2.1 |
static int |
139 |
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get_dminfo(char *s, void *p) |
140 |
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{ |
141 |
greg |
2.6 |
RMATRIX *ip = (RMATRIX *)p; |
142 |
greg |
2.29 |
char fmt[MAXFMTLEN]; |
143 |
greg |
2.1 |
int i; |
144 |
|
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|
145 |
greg |
2.59 |
if (headidval(NULL, s)) |
146 |
greg |
2.6 |
return(0); |
147 |
greg |
2.60 |
if (isncomp(s)) { |
148 |
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ip->ncomp = ncompval(s); |
149 |
greg |
2.1 |
return(0); |
150 |
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} |
151 |
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if (!strncmp(s, "NROWS=", 6)) { |
152 |
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ip->nrows = atoi(s+6); |
153 |
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return(0); |
154 |
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} |
155 |
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if (!strncmp(s, "NCOLS=", 6)) { |
156 |
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ip->ncols = atoi(s+6); |
157 |
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return(0); |
158 |
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} |
159 |
greg |
2.35 |
if ((i = isbigendian(s)) >= 0) { |
160 |
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ip->swapin = (nativebigendian() != i); |
161 |
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return(0); |
162 |
|
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} |
163 |
greg |
2.40 |
if (isexpos(s)) { |
164 |
greg |
2.52 |
float f = exposval(s); |
165 |
|
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scalecolor(ip->cexp, f); |
166 |
greg |
2.40 |
return(0); |
167 |
|
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} |
168 |
|
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if (iscolcor(s)) { |
169 |
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COLOR ctmp; |
170 |
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colcorval(ctmp, s); |
171 |
greg |
2.50 |
multcolor(ip->cexp, ctmp); |
172 |
greg |
2.40 |
return(0); |
173 |
|
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} |
174 |
greg |
2.60 |
if (iswlsplit(s)) { |
175 |
|
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wlsplitval(ip->wlpart, s); |
176 |
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return(0); |
177 |
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} |
178 |
greg |
2.5 |
if (!formatval(fmt, s)) { |
179 |
greg |
2.6 |
rmx_addinfo(ip, s); |
180 |
greg |
2.1 |
return(0); |
181 |
greg |
2.50 |
} /* else check format */ |
182 |
greg |
2.1 |
for (i = 1; i < DTend; i++) |
183 |
|
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if (!strcmp(fmt, cm_fmt_id[i])) { |
184 |
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ip->dtype = i; |
185 |
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return(0); |
186 |
|
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} |
187 |
|
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return(-1); |
188 |
|
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} |
189 |
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|
190 |
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static int |
191 |
greg |
2.65 |
rmx_load_ascii(double *drp, const RMATRIX *rm, FILE *fp) |
192 |
greg |
2.1 |
{ |
193 |
greg |
2.65 |
int j, k; |
194 |
greg |
2.17 |
|
195 |
greg |
2.65 |
for (j = 0; j < rm->ncols; j++) |
196 |
|
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for (k = rm->ncomp; k-- > 0; ) |
197 |
|
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if (fscanf(fp, "%lf", drp++) != 1) |
198 |
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return(0); |
199 |
greg |
2.1 |
return(1); |
200 |
|
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} |
201 |
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|
202 |
|
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static int |
203 |
greg |
2.65 |
rmx_load_float(double *drp, const RMATRIX *rm, FILE *fp) |
204 |
greg |
2.1 |
{ |
205 |
greg |
2.65 |
int j, k; |
206 |
greg |
2.1 |
float val[100]; |
207 |
|
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|
208 |
|
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if (rm->ncomp > 100) { |
209 |
|
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fputs("Unsupported # components in rmx_load_float()\n", stderr); |
210 |
|
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exit(1); |
211 |
|
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} |
212 |
greg |
2.65 |
for (j = 0; j < rm->ncols; j++) { |
213 |
greg |
2.21 |
if (getbinary(val, sizeof(val[0]), rm->ncomp, fp) != rm->ncomp) |
214 |
greg |
2.65 |
return(0); |
215 |
greg |
2.35 |
if (rm->swapin) |
216 |
greg |
2.65 |
swap32((char *)val, rm->ncomp); |
217 |
|
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for (k = 0; k < rm->ncomp; k++) |
218 |
|
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*drp++ = val[k]; |
219 |
|
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} |
220 |
greg |
2.1 |
return(1); |
221 |
|
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} |
222 |
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|
223 |
|
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static int |
224 |
greg |
2.65 |
rmx_load_double(double *drp, const RMATRIX *rm, FILE *fp) |
225 |
greg |
2.1 |
{ |
226 |
greg |
2.65 |
if (getbinary(drp, sizeof(*drp)*rm->ncomp, rm->ncols, fp) != rm->ncols) |
227 |
greg |
2.50 |
return(0); |
228 |
greg |
2.65 |
if (rm->swapin) |
229 |
|
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swap64((char *)drp, rm->ncols*rm->ncomp); |
230 |
greg |
2.1 |
return(1); |
231 |
|
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} |
232 |
|
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|
233 |
|
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static int |
234 |
greg |
2.65 |
rmx_load_rgbe(double *drp, const RMATRIX *rm, FILE *fp) |
235 |
greg |
2.1 |
{ |
236 |
greg |
2.65 |
COLR *scan; |
237 |
|
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COLOR col; |
238 |
|
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int j; |
239 |
greg |
2.1 |
|
240 |
greg |
2.65 |
if (rm->ncomp != 3) |
241 |
|
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return(0); |
242 |
|
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scan = (COLR *)tempbuffer(sizeof(COLR)*rm->ncols); |
243 |
greg |
2.33 |
if (!scan) |
244 |
greg |
2.1 |
return(0); |
245 |
greg |
2.65 |
if (freadcolrs(scan, rm->ncols, fp) < 0) |
246 |
greg |
2.1 |
return(0); |
247 |
greg |
2.65 |
for (j = 0; j < rm->ncols; j++) { |
248 |
|
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colr_color(col, scan[j]); |
249 |
|
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*drp++ = colval(col,RED); |
250 |
|
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*drp++ = colval(col,GRN); |
251 |
|
|
*drp++ = colval(col,BLU); |
252 |
greg |
2.1 |
} |
253 |
|
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return(1); |
254 |
|
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} |
255 |
|
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|
256 |
greg |
2.60 |
static int |
257 |
greg |
2.65 |
rmx_load_spec(double *drp, const RMATRIX *rm, FILE *fp) |
258 |
greg |
2.60 |
{ |
259 |
|
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uby8 *scan; |
260 |
|
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SCOLOR scol; |
261 |
greg |
2.65 |
int j, k; |
262 |
greg |
2.60 |
|
263 |
greg |
2.65 |
if ((rm->ncomp < 3) | (rm->ncomp > MAXCSAMP)) |
264 |
greg |
2.60 |
return(0); |
265 |
greg |
2.65 |
scan = (uby8 *)tempbuffer((rm->ncomp+1)*rm->ncols); |
266 |
greg |
2.60 |
if (!scan) |
267 |
|
|
return(0); |
268 |
greg |
2.65 |
if (freadscolrs(scan, rm->ncomp, rm->ncols, fp) < 0) |
269 |
greg |
2.60 |
return(0); |
270 |
greg |
2.65 |
for (j = 0; j < rm->ncols; j++) { |
271 |
|
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scolr2scolor(scol, scan+j*(rm->ncomp+1), rm->ncomp); |
272 |
|
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for (k = 0; k < rm->ncomp; k++) |
273 |
|
|
*drp++ = scol[k]; |
274 |
greg |
2.60 |
} |
275 |
|
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return(1); |
276 |
|
|
} |
277 |
|
|
|
278 |
greg |
2.62 |
/* Read matrix header from input stream (cannot be XML) */ |
279 |
|
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int |
280 |
|
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rmx_load_header(RMATRIX *rm, FILE *fp) |
281 |
|
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{ |
282 |
|
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if (!rm | !fp) |
283 |
greg |
2.63 |
return(0); |
284 |
greg |
2.67 |
rmx_reset(rm); /* clear state */ |
285 |
greg |
2.62 |
if (rm->nrows | rm->ncols | !rm->dtype) { |
286 |
|
|
rm->nrows = rm->ncols = 0; |
287 |
|
|
rm->ncomp = 3; |
288 |
|
|
setcolor(rm->cexp, 1.f, 1.f, 1.f); |
289 |
|
|
memcpy(rm->wlpart, WLPART, sizeof(rm->wlpart)); |
290 |
greg |
2.63 |
rm->swapin = 0; |
291 |
greg |
2.62 |
} |
292 |
|
|
rm->dtype = DTascii; /* assumed w/o FORMAT */ |
293 |
|
|
if (getheader(fp, get_dminfo, rm) < 0) { |
294 |
|
|
fputs("Unrecognized matrix format\n", stderr); |
295 |
greg |
2.63 |
return(0); |
296 |
greg |
2.62 |
} |
297 |
greg |
2.68 |
if ((rm->dtype == DTrgbe) | (rm->dtype == DTxyze) && |
298 |
|
|
rm->ncomp != 3) |
299 |
|
|
return(0); |
300 |
|
|
if (rm->ncols <= 0 && /* resolution string? */ |
301 |
|
|
!fscnresolu(&rm->ncols, &rm->nrows, fp)) |
302 |
|
|
return(0); |
303 |
|
|
if (rm->dtype == DTascii) /* set file type (WINDOWS) */ |
304 |
greg |
2.67 |
SET_FILE_TEXT(fp); |
305 |
|
|
else |
306 |
|
|
SET_FILE_BINARY(fp); |
307 |
greg |
2.63 |
return(1); |
308 |
greg |
2.62 |
} |
309 |
|
|
|
310 |
greg |
2.65 |
/* Load next row as double (cannot be XML) */ |
311 |
greg |
2.62 |
int |
312 |
greg |
2.65 |
rmx_load_row(double *drp, const RMATRIX *rm, FILE *fp) |
313 |
greg |
2.62 |
{ |
314 |
|
|
switch (rm->dtype) { |
315 |
|
|
case DTascii: |
316 |
greg |
2.65 |
return(rmx_load_ascii(drp, rm, fp)); |
317 |
greg |
2.62 |
case DTfloat: |
318 |
greg |
2.65 |
return(rmx_load_float(drp, rm, fp)); |
319 |
greg |
2.62 |
case DTdouble: |
320 |
greg |
2.65 |
return(rmx_load_double(drp, rm, fp)); |
321 |
greg |
2.62 |
case DTrgbe: |
322 |
|
|
case DTxyze: |
323 |
greg |
2.65 |
return(rmx_load_rgbe(drp, rm, fp)); |
324 |
greg |
2.62 |
case DTspec: |
325 |
greg |
2.65 |
return(rmx_load_spec(drp, rm, fp)); |
326 |
greg |
2.62 |
default: |
327 |
greg |
2.65 |
fputs("Unsupported data type in rmx_load_row()\n", stderr); |
328 |
greg |
2.62 |
} |
329 |
|
|
return(0); |
330 |
|
|
} |
331 |
|
|
|
332 |
greg |
2.65 |
/* Allocate & load post-header data from stream given type set in rm->dtype */ |
333 |
|
|
int |
334 |
|
|
rmx_load_data(RMATRIX *rm, FILE *fp) |
335 |
|
|
{ |
336 |
|
|
int i; |
337 |
|
|
#ifdef MAP_FILE |
338 |
|
|
long pos; /* map memory for file > 1MB if possible */ |
339 |
|
|
if ((rm->dtype == DTdouble) & !rm->swapin && array_size(rm) >= 1L<<20 && |
340 |
|
|
(pos = ftell(fp)) >= 0 && !(pos % sizeof(double))) { |
341 |
|
|
rm->mapped = mmap(NULL, array_size(rm)+pos, PROT_READ|PROT_WRITE, |
342 |
|
|
MAP_PRIVATE, fileno(fp), 0); |
343 |
|
|
if (rm->mapped != MAP_FAILED) { |
344 |
|
|
rm->mtx = (double *)rm->mapped + pos/sizeof(double); |
345 |
|
|
return(1); |
346 |
|
|
} /* else fall back on reading into memory */ |
347 |
|
|
rm->mapped = NULL; |
348 |
|
|
} |
349 |
|
|
#endif |
350 |
|
|
if (!rmx_prepare(rm)) { /* need in-core matrix array */ |
351 |
|
|
fprintf(stderr, "Cannot allocate %g MByte matrix array\n", |
352 |
|
|
(1./(1L<<20))*(double)array_size(rm)); |
353 |
|
|
return(0); |
354 |
|
|
} |
355 |
|
|
for (i = 0; i < rm->nrows; i++) |
356 |
|
|
if (!rmx_load_row(rmx_lval(rm,i,0), rm, fp)) |
357 |
|
|
return(0); |
358 |
|
|
return(1); |
359 |
|
|
} |
360 |
|
|
|
361 |
greg |
2.1 |
/* Load matrix from supported file type */ |
362 |
|
|
RMATRIX * |
363 |
greg |
2.46 |
rmx_load(const char *inspec, RMPref rmp) |
364 |
greg |
2.1 |
{ |
365 |
greg |
2.46 |
FILE *fp; |
366 |
greg |
2.1 |
RMATRIX *dnew; |
367 |
greg |
2.62 |
int ok; |
368 |
greg |
2.1 |
|
369 |
greg |
2.47 |
if (!inspec) |
370 |
|
|
inspec = stdin_name; |
371 |
|
|
else if (!*inspec) |
372 |
greg |
2.46 |
return(NULL); |
373 |
greg |
2.62 |
if (inspec == stdin_name) /* reading from stdin? */ |
374 |
greg |
2.46 |
fp = stdin; |
375 |
greg |
2.62 |
else if (inspec[0] == '!') |
376 |
|
|
fp = popen(inspec+1, "r"); |
377 |
greg |
2.71 |
else { |
378 |
greg |
2.13 |
const char *sp = inspec; /* check suffix */ |
379 |
greg |
2.1 |
while (*sp) |
380 |
|
|
++sp; |
381 |
greg |
2.13 |
while (sp > inspec && sp[-1] != '.') |
382 |
greg |
2.1 |
--sp; |
383 |
|
|
if (!strcasecmp(sp, "XML")) { /* assume it's a BSDF */ |
384 |
greg |
2.71 |
CMATRIX *cm = rmp==RMPnone ? (CMATRIX *)NULL : |
385 |
|
|
rmp==RMPtrans ? cm_loadBTDF(inspec) : |
386 |
greg |
2.46 |
cm_loadBRDF(inspec, rmp==RMPreflB) ; |
387 |
greg |
2.33 |
if (!cm) |
388 |
greg |
2.1 |
return(NULL); |
389 |
|
|
dnew = rmx_from_cmatrix(cm); |
390 |
|
|
cm_free(cm); |
391 |
greg |
2.18 |
dnew->dtype = DTascii; |
392 |
greg |
2.62 |
return(dnew); /* return here */ |
393 |
|
|
} /* else open it ourselves */ |
394 |
|
|
fp = fopen(inspec, "r"); |
395 |
greg |
2.1 |
} |
396 |
greg |
2.62 |
if (!fp) |
397 |
|
|
return(NULL); |
398 |
greg |
2.1 |
#ifdef getc_unlocked |
399 |
|
|
flockfile(fp); |
400 |
|
|
#endif |
401 |
greg |
2.67 |
SET_FILE_BINARY(fp); /* load header info */ |
402 |
greg |
2.63 |
if (!rmx_load_header(dnew = rmx_new(0,0,3), fp)) { |
403 |
greg |
2.62 |
fprintf(stderr, "Bad header in: %s\n", inspec); |
404 |
|
|
if (inspec[0] == '!') pclose(fp); |
405 |
|
|
else fclose(fp); |
406 |
|
|
rmx_free(dnew); |
407 |
greg |
2.1 |
return(NULL); |
408 |
|
|
} |
409 |
greg |
2.62 |
ok = rmx_load_data(dnew, fp); /* allocate & load data */ |
410 |
|
|
|
411 |
|
|
if (fp != stdin) { /* close input stream */ |
412 |
greg |
2.13 |
if (inspec[0] == '!') |
413 |
|
|
pclose(fp); |
414 |
|
|
else |
415 |
|
|
fclose(fp); |
416 |
|
|
} |
417 |
|
|
#ifdef getc_unlocked |
418 |
|
|
else |
419 |
|
|
funlockfile(fp); |
420 |
|
|
#endif |
421 |
greg |
2.62 |
if (!ok) { /* load failure? */ |
422 |
|
|
fprintf(stderr, "Error loading data from: %s\n", inspec); |
423 |
|
|
rmx_free(dnew); |
424 |
|
|
return(NULL); |
425 |
|
|
} |
426 |
greg |
2.58 |
/* undo exposure? */ |
427 |
greg |
2.60 |
if ((dnew->cexp[0] != 1.f) | |
428 |
greg |
2.58 |
(dnew->cexp[1] != 1.f) | (dnew->cexp[2] != 1.f)) { |
429 |
greg |
2.60 |
double cmlt[MAXCSAMP]; |
430 |
|
|
int i; |
431 |
greg |
2.58 |
cmlt[0] = 1./dnew->cexp[0]; |
432 |
|
|
cmlt[1] = 1./dnew->cexp[1]; |
433 |
|
|
cmlt[2] = 1./dnew->cexp[2]; |
434 |
greg |
2.62 |
if (dnew->ncomp > MAXCSAMP) { |
435 |
|
|
fprintf(stderr, "Excess spectral components in: %s\n", |
436 |
|
|
inspec); |
437 |
|
|
rmx_free(dnew); |
438 |
|
|
return(NULL); |
439 |
|
|
} |
440 |
greg |
2.60 |
for (i = dnew->ncomp; i-- > 3; ) |
441 |
|
|
cmlt[i] = cmlt[1]; |
442 |
greg |
2.58 |
rmx_scale(dnew, cmlt); |
443 |
|
|
setcolor(dnew->cexp, 1.f, 1.f, 1.f); |
444 |
|
|
} |
445 |
greg |
2.1 |
return(dnew); |
446 |
|
|
} |
447 |
|
|
|
448 |
|
|
static int |
449 |
greg |
2.67 |
rmx_write_ascii(const double *dp, int nc, int len, FILE *fp) |
450 |
greg |
2.1 |
{ |
451 |
greg |
2.67 |
while (len-- > 0) { |
452 |
|
|
int k = nc; |
453 |
greg |
2.72 |
while (k-- > 0) |
454 |
greg |
2.67 |
fprintf(fp, " %.7e", *dp++); |
455 |
greg |
2.1 |
fputc('\t', fp); |
456 |
|
|
} |
457 |
greg |
2.67 |
return(fputc('\n', fp) != EOF); |
458 |
greg |
2.1 |
} |
459 |
|
|
|
460 |
|
|
static int |
461 |
greg |
2.67 |
rmx_write_float(const double *dp, int len, FILE *fp) |
462 |
greg |
2.1 |
{ |
463 |
greg |
2.67 |
float val; |
464 |
greg |
2.1 |
|
465 |
greg |
2.67 |
while (len--) { |
466 |
|
|
val = *dp++; |
467 |
|
|
if (putbinary(&val, sizeof(float), 1, fp) != 1) |
468 |
|
|
return(0); |
469 |
greg |
2.1 |
} |
470 |
|
|
return(1); |
471 |
|
|
} |
472 |
|
|
|
473 |
|
|
static int |
474 |
greg |
2.67 |
rmx_write_rgbe(const double *dp, int nc, int len, FILE *fp) |
475 |
greg |
2.1 |
{ |
476 |
greg |
2.67 |
COLR *scan; |
477 |
|
|
int j; |
478 |
greg |
2.1 |
|
479 |
greg |
2.67 |
if ((nc != 1) & (nc != 3)) return(0); |
480 |
|
|
scan = (COLR *)tempbuffer(sizeof(COLR)*len); |
481 |
|
|
if (!scan) return(0); |
482 |
greg |
2.1 |
|
483 |
greg |
2.67 |
for (j = 0; j < len; j++, dp += nc) |
484 |
|
|
if (nc == 1) |
485 |
greg |
2.54 |
setcolr(scan[j], dp[0], dp[0], dp[0]); |
486 |
|
|
else |
487 |
|
|
setcolr(scan[j], dp[0], dp[1], dp[2]); |
488 |
greg |
2.67 |
|
489 |
|
|
return(fwritecolrs(scan, len, fp) >= 0); |
490 |
greg |
2.1 |
} |
491 |
|
|
|
492 |
greg |
2.60 |
static int |
493 |
greg |
2.67 |
rmx_write_spec(const double *dp, int nc, int len, FILE *fp) |
494 |
greg |
2.60 |
{ |
495 |
greg |
2.67 |
uby8 *scan; |
496 |
greg |
2.60 |
SCOLOR scol; |
497 |
greg |
2.67 |
int j, k; |
498 |
greg |
2.60 |
|
499 |
greg |
2.67 |
if (nc < 3) return(0); |
500 |
|
|
scan = (uby8 *)tempbuffer((nc+1)*len); |
501 |
|
|
if (!scan) return(0); |
502 |
|
|
for (j = len; j--; dp += nc) { |
503 |
|
|
for (k = nc; k--; ) |
504 |
greg |
2.60 |
scol[k] = dp[k]; |
505 |
greg |
2.67 |
scolor2scolr(scan+j*(nc+1), scol, nc); |
506 |
greg |
2.60 |
} |
507 |
greg |
2.67 |
return(fwritescolrs(scan, nc, len, fp) >= 0); |
508 |
greg |
2.60 |
} |
509 |
|
|
|
510 |
greg |
2.48 |
/* Check if CIE XYZ primaries were specified */ |
511 |
|
|
static int |
512 |
|
|
findCIEprims(const char *info) |
513 |
|
|
{ |
514 |
|
|
RGBPRIMS prims; |
515 |
|
|
|
516 |
|
|
if (!info) |
517 |
|
|
return(0); |
518 |
|
|
info = strstr(info, PRIMARYSTR); |
519 |
|
|
if (!info || !primsval(prims, info)) |
520 |
|
|
return(0); |
521 |
|
|
|
522 |
|
|
return((prims[RED][CIEX] > .99) & (prims[RED][CIEY] < .01) && |
523 |
|
|
(prims[GRN][CIEX] < .01) & (prims[GRN][CIEY] > .99) && |
524 |
|
|
(prims[BLU][CIEX] < .01) & (prims[BLU][CIEY] < .01)); |
525 |
|
|
} |
526 |
|
|
|
527 |
greg |
2.67 |
/* Finish writing header data with resolution and format, returning type used */ |
528 |
greg |
2.10 |
int |
529 |
greg |
2.67 |
rmx_write_header(const RMATRIX *rm, int dtype, FILE *fp) |
530 |
greg |
2.1 |
{ |
531 |
greg |
2.70 |
if (!rm | !fp || rm->ncols <= 0) |
532 |
greg |
2.1 |
return(0); |
533 |
greg |
2.67 |
if (rm->info) |
534 |
greg |
2.5 |
fputs(rm->info, fp); |
535 |
greg |
2.6 |
if (dtype == DTfromHeader) |
536 |
|
|
dtype = rm->dtype; |
537 |
greg |
2.48 |
else if (dtype == DTrgbe && (rm->dtype == DTxyze || |
538 |
|
|
findCIEprims(rm->info))) |
539 |
greg |
2.6 |
dtype = DTxyze; |
540 |
greg |
2.9 |
else if ((dtype == DTxyze) & (rm->dtype == DTrgbe)) |
541 |
greg |
2.6 |
dtype = DTrgbe; |
542 |
greg |
2.75 |
if ((dtype < DTspec) & (rm->ncomp > 3)) |
543 |
|
|
dtype = DTspec; |
544 |
|
|
else if ((dtype == DTspec) & (rm->ncomp <= 3)) |
545 |
greg |
2.68 |
return(0); |
546 |
greg |
2.67 |
|
547 |
greg |
2.68 |
if (dtype == DTascii) /* set file type (WINDOWS) */ |
548 |
greg |
2.67 |
SET_FILE_TEXT(fp); |
549 |
|
|
else |
550 |
|
|
SET_FILE_BINARY(fp); |
551 |
greg |
2.60 |
/* write exposure? */ |
552 |
|
|
if (rm->ncomp == 3 && (rm->cexp[RED] != rm->cexp[GRN]) | |
553 |
|
|
(rm->cexp[GRN] != rm->cexp[BLU])) |
554 |
|
|
fputcolcor(rm->cexp, fp); |
555 |
|
|
else if (rm->cexp[GRN] != 1.f) |
556 |
|
|
fputexpos(rm->cexp[GRN], fp); |
557 |
greg |
2.68 |
/* matrix size? */ |
558 |
|
|
if ((dtype > DTspec) | (rm->nrows <= 0)) { |
559 |
|
|
if (rm->nrows > 0) |
560 |
greg |
2.60 |
fprintf(fp, "NROWS=%d\n", rm->nrows); |
561 |
greg |
2.68 |
fprintf(fp, "NCOLS=%d\n", rm->ncols); |
562 |
|
|
} |
563 |
|
|
if (dtype >= DTspec) { /* # components & split? */ |
564 |
greg |
2.60 |
fputncomp(rm->ncomp, fp); |
565 |
greg |
2.74 |
if (rm->ncomp > 3 && |
566 |
|
|
memcmp(rm->wlpart, WLPART, sizeof(WLPART))) |
567 |
greg |
2.64 |
fputwlsplit(rm->wlpart, fp); |
568 |
greg |
2.54 |
} else if ((rm->ncomp != 3) & (rm->ncomp != 1)) |
569 |
|
|
return(0); /* wrong # components */ |
570 |
greg |
2.35 |
if ((dtype == DTfloat) | (dtype == DTdouble)) |
571 |
|
|
fputendian(fp); /* important to record */ |
572 |
greg |
2.49 |
fputformat(cm_fmt_id[dtype], fp); |
573 |
greg |
2.64 |
fputc('\n', fp); /* end of header */ |
574 |
greg |
2.68 |
if ((dtype <= DTspec) & (rm->nrows > 0)) |
575 |
greg |
2.67 |
fprtresolu(rm->ncols, rm->nrows, fp); |
576 |
|
|
return(dtype); |
577 |
|
|
} |
578 |
|
|
|
579 |
|
|
/* Write out matrix data (usually by row) */ |
580 |
|
|
int |
581 |
|
|
rmx_write_data(const double *dp, int nc, int len, int dtype, FILE *fp) |
582 |
|
|
{ |
583 |
|
|
switch (dtype) { |
584 |
greg |
2.1 |
case DTascii: |
585 |
greg |
2.67 |
return(rmx_write_ascii(dp, nc, len, fp)); |
586 |
greg |
2.1 |
case DTfloat: |
587 |
greg |
2.67 |
return(rmx_write_float(dp, nc*len, fp)); |
588 |
greg |
2.1 |
case DTdouble: |
589 |
greg |
2.67 |
return(putbinary(dp, sizeof(*dp)*nc, len, fp) == len); |
590 |
greg |
2.1 |
case DTrgbe: |
591 |
|
|
case DTxyze: |
592 |
greg |
2.67 |
return(rmx_write_rgbe(dp, nc, len, fp)); |
593 |
greg |
2.60 |
case DTspec: |
594 |
greg |
2.67 |
return(rmx_write_spec(dp, nc, len, fp)); |
595 |
|
|
} |
596 |
|
|
return(0); |
597 |
|
|
} |
598 |
|
|
|
599 |
|
|
/* Write matrix using file format indicated by dtype */ |
600 |
|
|
int |
601 |
|
|
rmx_write(const RMATRIX *rm, int dtype, FILE *fp) |
602 |
|
|
{ |
603 |
|
|
int ok = 0; |
604 |
|
|
int i; |
605 |
|
|
/* complete header */ |
606 |
|
|
dtype = rmx_write_header(rm, dtype, fp); |
607 |
|
|
if (dtype <= 0) |
608 |
greg |
2.1 |
return(0); |
609 |
greg |
2.67 |
#ifdef getc_unlocked |
610 |
|
|
flockfile(fp); |
611 |
|
|
#endif |
612 |
|
|
if (dtype == DTdouble) /* write all at once? */ |
613 |
|
|
ok = rmx_write_data(rm->mtx, rm->ncomp, |
614 |
|
|
rm->nrows*rm->ncols, dtype, fp); |
615 |
|
|
else /* else row by row */ |
616 |
|
|
for (i = 0; i < rm->nrows; i++) { |
617 |
|
|
ok = rmx_write_data(rmx_val(rm,i,0), rm->ncomp, |
618 |
|
|
rm->ncols, dtype, fp); |
619 |
|
|
if (!ok) break; |
620 |
|
|
} |
621 |
|
|
|
622 |
|
|
if (ok) ok = (fflush(fp) == 0); |
623 |
greg |
2.17 |
#ifdef getc_unlocked |
624 |
|
|
funlockfile(fp); |
625 |
|
|
#endif |
626 |
greg |
2.62 |
if (!ok) fputs("Error writing matrix\n", stderr); |
627 |
greg |
2.10 |
return(ok); |
628 |
greg |
2.1 |
} |
629 |
|
|
|
630 |
|
|
/* Allocate and assign square identity matrix with n components */ |
631 |
|
|
RMATRIX * |
632 |
|
|
rmx_identity(const int dim, const int n) |
633 |
|
|
{ |
634 |
|
|
RMATRIX *rid = rmx_alloc(dim, dim, n); |
635 |
greg |
2.12 |
int i, k; |
636 |
greg |
2.1 |
|
637 |
greg |
2.33 |
if (!rid) |
638 |
greg |
2.1 |
return(NULL); |
639 |
greg |
2.52 |
memset(rid->mtx, 0, array_size(rid)); |
640 |
greg |
2.53 |
for (i = dim; i--; ) { |
641 |
|
|
double *dp = rmx_lval(rid,i,i); |
642 |
greg |
2.12 |
for (k = n; k--; ) |
643 |
greg |
2.53 |
dp[k] = 1.; |
644 |
|
|
} |
645 |
greg |
2.1 |
return(rid); |
646 |
|
|
} |
647 |
|
|
|
648 |
greg |
2.69 |
/* Duplicate the given matrix (may be unallocated) */ |
649 |
greg |
2.1 |
RMATRIX * |
650 |
|
|
rmx_copy(const RMATRIX *rm) |
651 |
|
|
{ |
652 |
|
|
RMATRIX *dnew; |
653 |
|
|
|
654 |
greg |
2.69 |
if (!rm) |
655 |
greg |
2.1 |
return(NULL); |
656 |
greg |
2.69 |
dnew = rmx_new(rm->nrows, rm->ncols, rm->ncomp); |
657 |
greg |
2.33 |
if (!dnew) |
658 |
greg |
2.1 |
return(NULL); |
659 |
greg |
2.69 |
if (rm->mtx) { |
660 |
|
|
if (!rmx_prepare(dnew)) { |
661 |
|
|
rmx_free(dnew); |
662 |
|
|
return(NULL); |
663 |
|
|
} |
664 |
|
|
memcpy(dnew->mtx, rm->mtx, array_size(dnew)); |
665 |
|
|
} |
666 |
greg |
2.5 |
rmx_addinfo(dnew, rm->info); |
667 |
greg |
2.6 |
dnew->dtype = rm->dtype; |
668 |
greg |
2.60 |
copycolor(dnew->cexp, rm->cexp); |
669 |
|
|
memcpy(dnew->wlpart, rm->wlpart, sizeof(dnew->wlpart)); |
670 |
greg |
2.1 |
return(dnew); |
671 |
|
|
} |
672 |
|
|
|
673 |
greg |
2.73 |
/* Replace data in first matrix with data from second */ |
674 |
|
|
int |
675 |
|
|
rmx_transfer_data(RMATRIX *rdst, RMATRIX *rsrc, int dometa) |
676 |
|
|
{ |
677 |
|
|
if (!rdst | !rsrc || (rdst->nrows != rsrc->nrows) | |
678 |
|
|
(rdst->ncols != rsrc->ncols) | |
679 |
|
|
(rdst->ncomp != rsrc->ncomp)) |
680 |
|
|
return(0); |
681 |
|
|
|
682 |
|
|
if (dometa) { /* transfer everything? */ |
683 |
|
|
rmx_reset(rdst); |
684 |
|
|
*rdst = *rsrc; |
685 |
|
|
rsrc->info = NULL; rsrc->mapped = NULL; rsrc->mtx = NULL; |
686 |
|
|
return(1); |
687 |
|
|
} |
688 |
greg |
2.76 |
#ifdef MAP_FILE /* just matrix data -- leave metadata */ |
689 |
greg |
2.73 |
if (rdst->mapped) |
690 |
greg |
2.76 |
munmap(rdst->mapped, mapped_size(rdst)); |
691 |
|
|
else |
692 |
|
|
#endif |
693 |
|
|
if (rdst->mtx) |
694 |
|
|
free(rdst->mtx); |
695 |
|
|
rdst->mapped = rsrc->mapped; |
696 |
greg |
2.73 |
rdst->mtx = rsrc->mtx; |
697 |
greg |
2.76 |
rsrc->mapped = NULL; rsrc->mtx = NULL; |
698 |
greg |
2.73 |
return(1); |
699 |
|
|
} |
700 |
|
|
|
701 |
greg |
2.2 |
/* Allocate and assign transposed matrix */ |
702 |
|
|
RMATRIX * |
703 |
|
|
rmx_transpose(const RMATRIX *rm) |
704 |
greg |
2.1 |
{ |
705 |
greg |
2.2 |
RMATRIX *dnew; |
706 |
greg |
2.55 |
int i, j; |
707 |
greg |
2.1 |
|
708 |
greg |
2.67 |
if (!rm || !rm->mtx) |
709 |
greg |
2.1 |
return(0); |
710 |
greg |
2.31 |
if ((rm->nrows == 1) | (rm->ncols == 1)) { |
711 |
|
|
dnew = rmx_copy(rm); |
712 |
greg |
2.33 |
if (!dnew) |
713 |
greg |
2.32 |
return(NULL); |
714 |
greg |
2.31 |
dnew->nrows = rm->ncols; |
715 |
|
|
dnew->ncols = rm->nrows; |
716 |
|
|
return(dnew); |
717 |
|
|
} |
718 |
greg |
2.2 |
dnew = rmx_alloc(rm->ncols, rm->nrows, rm->ncomp); |
719 |
greg |
2.33 |
if (!dnew) |
720 |
greg |
2.2 |
return(NULL); |
721 |
greg |
2.5 |
if (rm->info) { |
722 |
|
|
rmx_addinfo(dnew, rm->info); |
723 |
|
|
rmx_addinfo(dnew, "Transposed rows and columns\n"); |
724 |
|
|
} |
725 |
greg |
2.6 |
dnew->dtype = rm->dtype; |
726 |
greg |
2.60 |
copycolor(dnew->cexp, rm->cexp); |
727 |
|
|
memcpy(dnew->wlpart, rm->wlpart, sizeof(dnew->wlpart)); |
728 |
greg |
2.56 |
for (j = dnew->ncols; j--; ) |
729 |
|
|
for (i = dnew->nrows; i--; ) |
730 |
greg |
2.62 |
memcpy(rmx_lval(dnew,i,j), rmx_val(rm,j,i), |
731 |
greg |
2.53 |
sizeof(double)*dnew->ncomp); |
732 |
greg |
2.2 |
return(dnew); |
733 |
greg |
2.1 |
} |
734 |
|
|
|
735 |
|
|
/* Multiply (concatenate) two matrices and allocate the result */ |
736 |
|
|
RMATRIX * |
737 |
|
|
rmx_multiply(const RMATRIX *m1, const RMATRIX *m2) |
738 |
|
|
{ |
739 |
|
|
RMATRIX *mres; |
740 |
|
|
int i, j, k, h; |
741 |
|
|
|
742 |
greg |
2.67 |
if (!m1 | !m2 || !m1->mtx | !m2->mtx | |
743 |
|
|
(m1->ncomp != m2->ncomp) | (m1->ncols != m2->nrows)) |
744 |
greg |
2.1 |
return(NULL); |
745 |
|
|
mres = rmx_alloc(m1->nrows, m2->ncols, m1->ncomp); |
746 |
greg |
2.33 |
if (!mres) |
747 |
greg |
2.1 |
return(NULL); |
748 |
greg |
2.6 |
i = rmx_newtype(m1->dtype, m2->dtype); |
749 |
|
|
if (i) |
750 |
|
|
mres->dtype = i; |
751 |
|
|
else |
752 |
|
|
rmx_addinfo(mres, rmx_mismatch_warn); |
753 |
greg |
2.1 |
for (i = mres->nrows; i--; ) |
754 |
|
|
for (j = mres->ncols; j--; ) |
755 |
greg |
2.8 |
for (k = mres->ncomp; k--; ) { |
756 |
greg |
2.53 |
double d = 0; |
757 |
greg |
2.8 |
for (h = m1->ncols; h--; ) |
758 |
greg |
2.62 |
d += rmx_val(m1,i,h)[k] * rmx_val(m2,h,j)[k]; |
759 |
greg |
2.53 |
rmx_lval(mres,i,j)[k] = d; |
760 |
greg |
2.1 |
} |
761 |
|
|
return(mres); |
762 |
|
|
} |
763 |
|
|
|
764 |
greg |
2.25 |
/* Element-wise multiplication (or division) of m2 into m1 */ |
765 |
|
|
int |
766 |
|
|
rmx_elemult(RMATRIX *m1, const RMATRIX *m2, int divide) |
767 |
|
|
{ |
768 |
|
|
int zeroDivides = 0; |
769 |
|
|
int i, j, k; |
770 |
|
|
|
771 |
greg |
2.67 |
if (!m1 | !m2 || !m1->mtx | !m2->mtx | |
772 |
|
|
(m1->ncols != m2->ncols) | (m1->nrows != m2->nrows)) |
773 |
greg |
2.25 |
return(0); |
774 |
|
|
if ((m2->ncomp > 1) & (m2->ncomp != m1->ncomp)) |
775 |
|
|
return(0); |
776 |
|
|
i = rmx_newtype(m1->dtype, m2->dtype); |
777 |
|
|
if (i) |
778 |
|
|
m1->dtype = i; |
779 |
|
|
else |
780 |
|
|
rmx_addinfo(m1, rmx_mismatch_warn); |
781 |
|
|
for (i = m1->nrows; i--; ) |
782 |
|
|
for (j = m1->ncols; j--; ) |
783 |
|
|
if (divide) { |
784 |
|
|
double d; |
785 |
|
|
if (m2->ncomp == 1) { |
786 |
greg |
2.62 |
d = rmx_val(m2,i,j)[0]; |
787 |
greg |
2.25 |
if (d == 0) { |
788 |
|
|
++zeroDivides; |
789 |
|
|
for (k = m1->ncomp; k--; ) |
790 |
greg |
2.53 |
rmx_lval(m1,i,j)[k] = 0; |
791 |
greg |
2.25 |
} else { |
792 |
|
|
d = 1./d; |
793 |
|
|
for (k = m1->ncomp; k--; ) |
794 |
greg |
2.53 |
rmx_lval(m1,i,j)[k] *= d; |
795 |
greg |
2.25 |
} |
796 |
|
|
} else |
797 |
|
|
for (k = m1->ncomp; k--; ) { |
798 |
greg |
2.62 |
d = rmx_val(m2,i,j)[k]; |
799 |
greg |
2.25 |
if (d == 0) { |
800 |
|
|
++zeroDivides; |
801 |
greg |
2.53 |
rmx_lval(m1,i,j)[k] = 0; |
802 |
greg |
2.25 |
} else |
803 |
greg |
2.53 |
rmx_lval(m1,i,j)[k] /= d; |
804 |
greg |
2.25 |
} |
805 |
|
|
} else { |
806 |
|
|
if (m2->ncomp == 1) { |
807 |
greg |
2.62 |
const double d = rmx_val(m2,i,j)[0]; |
808 |
greg |
2.25 |
for (k = m1->ncomp; k--; ) |
809 |
greg |
2.53 |
rmx_lval(m1,i,j)[k] *= d; |
810 |
greg |
2.25 |
} else |
811 |
|
|
for (k = m1->ncomp; k--; ) |
812 |
greg |
2.62 |
rmx_lval(m1,i,j)[k] *= rmx_val(m2,i,j)[k]; |
813 |
greg |
2.25 |
} |
814 |
|
|
if (zeroDivides) { |
815 |
greg |
2.34 |
rmx_addinfo(m1, "WARNING: zero divide(s) corrupted results\n"); |
816 |
greg |
2.25 |
errno = ERANGE; |
817 |
|
|
} |
818 |
|
|
return(1); |
819 |
|
|
} |
820 |
|
|
|
821 |
greg |
2.1 |
/* Sum second matrix into first, applying scale factor beforehand */ |
822 |
|
|
int |
823 |
|
|
rmx_sum(RMATRIX *msum, const RMATRIX *madd, const double sf[]) |
824 |
|
|
{ |
825 |
|
|
double *mysf = NULL; |
826 |
|
|
int i, j, k; |
827 |
|
|
|
828 |
greg |
2.67 |
if (!msum | !madd || !msum->mtx | !madd->mtx | |
829 |
greg |
2.1 |
(msum->nrows != madd->nrows) | |
830 |
|
|
(msum->ncols != madd->ncols) | |
831 |
|
|
(msum->ncomp != madd->ncomp)) |
832 |
|
|
return(0); |
833 |
greg |
2.33 |
if (!sf) { |
834 |
greg |
2.1 |
mysf = (double *)malloc(sizeof(double)*msum->ncomp); |
835 |
greg |
2.33 |
if (!mysf) |
836 |
greg |
2.1 |
return(0); |
837 |
|
|
for (k = msum->ncomp; k--; ) |
838 |
|
|
mysf[k] = 1; |
839 |
|
|
sf = mysf; |
840 |
|
|
} |
841 |
greg |
2.6 |
i = rmx_newtype(msum->dtype, madd->dtype); |
842 |
|
|
if (i) |
843 |
|
|
msum->dtype = i; |
844 |
|
|
else |
845 |
|
|
rmx_addinfo(msum, rmx_mismatch_warn); |
846 |
greg |
2.1 |
for (i = msum->nrows; i--; ) |
847 |
greg |
2.53 |
for (j = msum->ncols; j--; ) { |
848 |
greg |
2.62 |
const double *da = rmx_val(madd,i,j); |
849 |
greg |
2.53 |
double *ds = rmx_lval(msum,i,j); |
850 |
greg |
2.1 |
for (k = msum->ncomp; k--; ) |
851 |
greg |
2.53 |
ds[k] += sf[k] * da[k]; |
852 |
|
|
} |
853 |
greg |
2.33 |
if (mysf) |
854 |
|
|
free(mysf); |
855 |
greg |
2.1 |
return(1); |
856 |
|
|
} |
857 |
|
|
|
858 |
|
|
/* Scale the given matrix by the indicated scalar component vector */ |
859 |
|
|
int |
860 |
|
|
rmx_scale(RMATRIX *rm, const double sf[]) |
861 |
|
|
{ |
862 |
|
|
int i, j, k; |
863 |
|
|
|
864 |
greg |
2.67 |
if (!rm | !sf || !rm->mtx) |
865 |
greg |
2.1 |
return(0); |
866 |
|
|
for (i = rm->nrows; i--; ) |
867 |
greg |
2.53 |
for (j = rm->ncols; j--; ) { |
868 |
|
|
double *dp = rmx_lval(rm,i,j); |
869 |
greg |
2.1 |
for (k = rm->ncomp; k--; ) |
870 |
greg |
2.53 |
dp[k] *= sf[k]; |
871 |
|
|
} |
872 |
greg |
2.28 |
if (rm->info) |
873 |
|
|
rmx_addinfo(rm, "Applied scalar\n"); |
874 |
greg |
2.60 |
/* XXX: should record as exposure for COLR and SCOLR types? */ |
875 |
greg |
2.1 |
return(1); |
876 |
|
|
} |
877 |
|
|
|
878 |
|
|
/* Allocate new matrix and apply component transformation */ |
879 |
|
|
RMATRIX * |
880 |
|
|
rmx_transform(const RMATRIX *msrc, int n, const double cmat[]) |
881 |
|
|
{ |
882 |
|
|
int i, j, ks, kd; |
883 |
|
|
RMATRIX *dnew; |
884 |
|
|
|
885 |
greg |
2.67 |
if (!msrc | (n <= 0) | !cmat || !msrc->mtx) |
886 |
greg |
2.1 |
return(NULL); |
887 |
|
|
dnew = rmx_alloc(msrc->nrows, msrc->ncols, n); |
888 |
greg |
2.33 |
if (!dnew) |
889 |
greg |
2.1 |
return(NULL); |
890 |
greg |
2.28 |
if (msrc->info) { |
891 |
|
|
char buf[128]; |
892 |
greg |
2.38 |
sprintf(buf, "Applied %dx%d component transform\n", |
893 |
greg |
2.28 |
dnew->ncomp, msrc->ncomp); |
894 |
|
|
rmx_addinfo(dnew, msrc->info); |
895 |
|
|
rmx_addinfo(dnew, buf); |
896 |
|
|
} |
897 |
greg |
2.6 |
dnew->dtype = msrc->dtype; |
898 |
greg |
2.1 |
for (i = dnew->nrows; i--; ) |
899 |
greg |
2.53 |
for (j = dnew->ncols; j--; ) { |
900 |
greg |
2.62 |
const double *ds = rmx_val(msrc,i,j); |
901 |
greg |
2.1 |
for (kd = dnew->ncomp; kd--; ) { |
902 |
|
|
double d = 0; |
903 |
|
|
for (ks = msrc->ncomp; ks--; ) |
904 |
greg |
2.53 |
d += cmat[kd*msrc->ncomp + ks] * ds[ks]; |
905 |
|
|
rmx_lval(dnew,i,j)[kd] = d; |
906 |
greg |
2.1 |
} |
907 |
greg |
2.53 |
} |
908 |
greg |
2.1 |
return(dnew); |
909 |
|
|
} |
910 |
|
|
|
911 |
|
|
/* Convert a color matrix to newly allocated RMATRIX buffer */ |
912 |
|
|
RMATRIX * |
913 |
|
|
rmx_from_cmatrix(const CMATRIX *cm) |
914 |
|
|
{ |
915 |
|
|
int i, j; |
916 |
|
|
RMATRIX *dnew; |
917 |
|
|
|
918 |
greg |
2.33 |
if (!cm) |
919 |
greg |
2.1 |
return(NULL); |
920 |
|
|
dnew = rmx_alloc(cm->nrows, cm->ncols, 3); |
921 |
greg |
2.33 |
if (!dnew) |
922 |
greg |
2.1 |
return(NULL); |
923 |
greg |
2.6 |
dnew->dtype = DTfloat; |
924 |
greg |
2.1 |
for (i = dnew->nrows; i--; ) |
925 |
|
|
for (j = dnew->ncols; j--; ) { |
926 |
|
|
const COLORV *cv = cm_lval(cm,i,j); |
927 |
greg |
2.53 |
double *dp = rmx_lval(dnew,i,j); |
928 |
|
|
dp[0] = cv[0]; |
929 |
|
|
dp[1] = cv[1]; |
930 |
|
|
dp[2] = cv[2]; |
931 |
greg |
2.1 |
} |
932 |
|
|
return(dnew); |
933 |
|
|
} |
934 |
|
|
|
935 |
|
|
/* Convert general matrix to newly allocated CMATRIX buffer */ |
936 |
|
|
CMATRIX * |
937 |
|
|
cm_from_rmatrix(const RMATRIX *rm) |
938 |
|
|
{ |
939 |
|
|
int i, j; |
940 |
|
|
CMATRIX *cnew; |
941 |
|
|
|
942 |
greg |
2.60 |
if (!rm || !rm->mtx | (rm->ncomp == 2)) |
943 |
greg |
2.1 |
return(NULL); |
944 |
|
|
cnew = cm_alloc(rm->nrows, rm->ncols); |
945 |
greg |
2.33 |
if (!cnew) |
946 |
greg |
2.1 |
return(NULL); |
947 |
|
|
for (i = cnew->nrows; i--; ) |
948 |
|
|
for (j = cnew->ncols; j--; ) { |
949 |
greg |
2.62 |
const double *dp = rmx_val(rm,i,j); |
950 |
greg |
2.53 |
COLORV *cv = cm_lval(cnew,i,j); |
951 |
greg |
2.60 |
switch (rm->ncomp) { |
952 |
|
|
case 3: |
953 |
|
|
setcolor(cv, dp[0], dp[1], dp[2]); |
954 |
|
|
break; |
955 |
|
|
case 1: |
956 |
greg |
2.53 |
setcolor(cv, dp[0], dp[0], dp[0]); |
957 |
greg |
2.60 |
break; |
958 |
|
|
default: { |
959 |
|
|
SCOLOR scol; |
960 |
|
|
int k; |
961 |
|
|
for (k = rm->ncomp; k--; ) |
962 |
|
|
scol[k] = dp[k]; |
963 |
|
|
scolor2color(cv, scol, rm->ncomp, rm->wlpart); |
964 |
|
|
} break; |
965 |
|
|
} |
966 |
greg |
2.1 |
} |
967 |
|
|
return(cnew); |
968 |
|
|
} |