1 |
greg |
2.1 |
#ifndef lint |
2 |
greg |
2.63 |
static const char RCSid[] = "$Id: rmatrix.c,v 2.62 2023/11/28 00:39:56 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 |
2.50 |
if (dnew) { |
35 |
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dnew->dtype = DTdouble; |
36 |
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dnew->nrows = nr; |
37 |
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dnew->ncols = nc; |
38 |
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dnew->ncomp = n; |
39 |
greg |
2.58 |
setcolor(dnew->cexp, 1.f, 1.f, 1.f); |
40 |
greg |
2.60 |
memcpy(dnew->wlpart, WLPART, sizeof(dnew->wlpart)); |
41 |
greg |
2.50 |
} |
42 |
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return(dnew); |
43 |
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} |
44 |
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|
45 |
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/* Prepare a RMATRIX for writing (allocate array if needed) */ |
46 |
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int |
47 |
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rmx_prepare(RMATRIX *rm) |
48 |
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{ |
49 |
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if (!rm) return(0); |
50 |
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if (rm->mtx) |
51 |
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return(1); |
52 |
greg |
2.60 |
if ((rm->nrows <= 0) | (rm->ncols <= 0) | (rm->ncomp <= 0)) |
53 |
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return(0); |
54 |
greg |
2.50 |
rm->mtx = (double *)malloc(array_size(rm)); |
55 |
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return(rm->mtx != NULL); |
56 |
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} |
57 |
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58 |
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/* Call rmx_new() and rmx_prepare() */ |
59 |
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RMATRIX * |
60 |
greg |
2.1 |
rmx_alloc(int nr, int nc, int n) |
61 |
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{ |
62 |
greg |
2.50 |
RMATRIX *dnew = rmx_new(nr, nc, n); |
63 |
greg |
2.1 |
|
64 |
greg |
2.50 |
if (dnew && !rmx_prepare(dnew)) { |
65 |
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rmx_free(dnew); |
66 |
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dnew = NULL; |
67 |
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} |
68 |
greg |
2.1 |
return(dnew); |
69 |
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} |
70 |
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|
71 |
greg |
2.6 |
/* Free a RMATRIX array */ |
72 |
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void |
73 |
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rmx_free(RMATRIX *rm) |
74 |
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{ |
75 |
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if (!rm) return; |
76 |
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if (rm->info) |
77 |
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free(rm->info); |
78 |
greg |
2.50 |
#ifdef MAP_FILE |
79 |
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if (rm->mapped) |
80 |
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munmap(rm->mapped, mapped_size(rm)); |
81 |
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else |
82 |
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#endif |
83 |
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free(rm->mtx); |
84 |
greg |
2.6 |
free(rm); |
85 |
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} |
86 |
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87 |
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/* Resolve data type based on two input types (returns 0 for mismatch) */ |
88 |
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int |
89 |
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rmx_newtype(int dtyp1, int dtyp2) |
90 |
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{ |
91 |
greg |
2.60 |
if ((dtyp1==DTxyze) | (dtyp1==DTrgbe) | (dtyp1==DTspec) | |
92 |
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(dtyp2==DTxyze) | (dtyp2==DTrgbe) | (dtyp2==DTspec) |
93 |
greg |
2.14 |
&& dtyp1 != dtyp2) |
94 |
greg |
2.6 |
return(0); |
95 |
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if (dtyp1 < dtyp2) |
96 |
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return(dtyp1); |
97 |
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return(dtyp2); |
98 |
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} |
99 |
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|
100 |
greg |
2.5 |
/* Append header information associated with matrix data */ |
101 |
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int |
102 |
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rmx_addinfo(RMATRIX *rm, const char *info) |
103 |
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{ |
104 |
greg |
2.50 |
int oldlen = 0; |
105 |
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|
106 |
greg |
2.33 |
if (!rm || !info || !*info) |
107 |
greg |
2.5 |
return(0); |
108 |
greg |
2.8 |
if (!rm->info) { |
109 |
greg |
2.5 |
rm->info = (char *)malloc(strlen(info)+1); |
110 |
greg |
2.8 |
if (rm->info) rm->info[0] = '\0'; |
111 |
greg |
2.50 |
} else { |
112 |
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oldlen = strlen(rm->info); |
113 |
greg |
2.5 |
rm->info = (char *)realloc(rm->info, |
114 |
greg |
2.50 |
oldlen+strlen(info)+1); |
115 |
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} |
116 |
greg |
2.5 |
if (!rm->info) |
117 |
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return(0); |
118 |
greg |
2.50 |
strcpy(rm->info+oldlen, info); |
119 |
greg |
2.5 |
return(1); |
120 |
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} |
121 |
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122 |
greg |
2.1 |
static int |
123 |
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get_dminfo(char *s, void *p) |
124 |
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{ |
125 |
greg |
2.6 |
RMATRIX *ip = (RMATRIX *)p; |
126 |
greg |
2.29 |
char fmt[MAXFMTLEN]; |
127 |
greg |
2.1 |
int i; |
128 |
|
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|
129 |
greg |
2.59 |
if (headidval(NULL, s)) |
130 |
greg |
2.6 |
return(0); |
131 |
greg |
2.60 |
if (isncomp(s)) { |
132 |
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ip->ncomp = ncompval(s); |
133 |
greg |
2.1 |
return(0); |
134 |
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} |
135 |
|
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if (!strncmp(s, "NROWS=", 6)) { |
136 |
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ip->nrows = atoi(s+6); |
137 |
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return(0); |
138 |
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} |
139 |
|
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if (!strncmp(s, "NCOLS=", 6)) { |
140 |
|
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ip->ncols = atoi(s+6); |
141 |
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return(0); |
142 |
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} |
143 |
greg |
2.35 |
if ((i = isbigendian(s)) >= 0) { |
144 |
|
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ip->swapin = (nativebigendian() != i); |
145 |
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return(0); |
146 |
|
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} |
147 |
greg |
2.40 |
if (isexpos(s)) { |
148 |
greg |
2.52 |
float f = exposval(s); |
149 |
|
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scalecolor(ip->cexp, f); |
150 |
greg |
2.40 |
return(0); |
151 |
|
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} |
152 |
|
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if (iscolcor(s)) { |
153 |
|
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COLOR ctmp; |
154 |
|
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colcorval(ctmp, s); |
155 |
greg |
2.50 |
multcolor(ip->cexp, ctmp); |
156 |
greg |
2.40 |
return(0); |
157 |
|
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} |
158 |
greg |
2.60 |
if (iswlsplit(s)) { |
159 |
|
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wlsplitval(ip->wlpart, s); |
160 |
|
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return(0); |
161 |
|
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} |
162 |
greg |
2.5 |
if (!formatval(fmt, s)) { |
163 |
greg |
2.6 |
rmx_addinfo(ip, s); |
164 |
greg |
2.1 |
return(0); |
165 |
greg |
2.50 |
} /* else check format */ |
166 |
greg |
2.1 |
for (i = 1; i < DTend; i++) |
167 |
|
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if (!strcmp(fmt, cm_fmt_id[i])) { |
168 |
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ip->dtype = i; |
169 |
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return(0); |
170 |
|
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} |
171 |
|
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return(-1); |
172 |
|
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} |
173 |
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|
174 |
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static int |
175 |
|
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rmx_load_ascii(RMATRIX *rm, FILE *fp) |
176 |
|
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{ |
177 |
|
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int i, j, k; |
178 |
greg |
2.17 |
|
179 |
greg |
2.50 |
if (!rmx_prepare(rm)) |
180 |
|
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return(0); |
181 |
greg |
2.1 |
for (i = 0; i < rm->nrows; i++) |
182 |
greg |
2.53 |
for (j = 0; j < rm->ncols; j++) { |
183 |
|
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double *dp = rmx_lval(rm,i,j); |
184 |
greg |
2.1 |
for (k = 0; k < rm->ncomp; k++) |
185 |
greg |
2.53 |
if (fscanf(fp, "%lf", &dp[k]) != 1) |
186 |
greg |
2.1 |
return(0); |
187 |
greg |
2.53 |
} |
188 |
greg |
2.1 |
return(1); |
189 |
|
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} |
190 |
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|
191 |
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static int |
192 |
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rmx_load_float(RMATRIX *rm, FILE *fp) |
193 |
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{ |
194 |
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int i, j, k; |
195 |
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float val[100]; |
196 |
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|
197 |
|
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if (rm->ncomp > 100) { |
198 |
|
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fputs("Unsupported # components in rmx_load_float()\n", stderr); |
199 |
|
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exit(1); |
200 |
|
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} |
201 |
greg |
2.50 |
if (!rmx_prepare(rm)) |
202 |
|
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return(0); |
203 |
greg |
2.1 |
for (i = 0; i < rm->nrows; i++) |
204 |
|
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for (j = 0; j < rm->ncols; j++) { |
205 |
greg |
2.53 |
double *dp = rmx_lval(rm,i,j); |
206 |
greg |
2.21 |
if (getbinary(val, sizeof(val[0]), rm->ncomp, fp) != rm->ncomp) |
207 |
greg |
2.1 |
return(0); |
208 |
greg |
2.35 |
if (rm->swapin) |
209 |
|
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swap32((char *)val, rm->ncomp); |
210 |
greg |
2.1 |
for (k = rm->ncomp; k--; ) |
211 |
greg |
2.53 |
dp[k] = val[k]; |
212 |
greg |
2.1 |
} |
213 |
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return(1); |
214 |
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} |
215 |
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|
216 |
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static int |
217 |
|
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rmx_load_double(RMATRIX *rm, FILE *fp) |
218 |
|
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{ |
219 |
greg |
2.41 |
int i; |
220 |
greg |
2.50 |
#ifdef MAP_FILE |
221 |
greg |
2.56 |
long pos; /* map memory for file > 1MB if possible */ |
222 |
greg |
2.51 |
if (!rm->swapin && array_size(rm) >= 1L<<20 && |
223 |
|
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(pos = ftell(fp)) >= 0 && !(pos % sizeof(double))) { |
224 |
greg |
2.50 |
rm->mapped = mmap(NULL, array_size(rm)+pos, PROT_READ|PROT_WRITE, |
225 |
|
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MAP_PRIVATE, fileno(fp), 0); |
226 |
|
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if (rm->mapped != MAP_FAILED) { |
227 |
|
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rm->mtx = (double *)rm->mapped + pos/sizeof(double); |
228 |
|
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return(1); |
229 |
greg |
2.56 |
} /* else fall back on reading into memory */ |
230 |
greg |
2.50 |
rm->mapped = NULL; |
231 |
greg |
2.41 |
} |
232 |
greg |
2.50 |
#endif |
233 |
|
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if (!rmx_prepare(rm)) |
234 |
|
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return(0); |
235 |
greg |
2.41 |
for (i = 0; i < rm->nrows; i++) { |
236 |
greg |
2.53 |
if (getbinary(rmx_lval(rm,i,0), sizeof(double)*rm->ncomp, |
237 |
greg |
2.41 |
rm->ncols, fp) != rm->ncols) |
238 |
|
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return(0); |
239 |
greg |
2.35 |
if (rm->swapin) |
240 |
greg |
2.53 |
swap64((char *)rmx_lval(rm,i,0), rm->ncols*rm->ncomp); |
241 |
greg |
2.41 |
} |
242 |
greg |
2.1 |
return(1); |
243 |
|
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} |
244 |
|
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|
245 |
|
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static int |
246 |
|
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rmx_load_rgbe(RMATRIX *rm, FILE *fp) |
247 |
|
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{ |
248 |
|
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COLOR *scan = (COLOR *)malloc(sizeof(COLOR)*rm->ncols); |
249 |
|
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int i, j; |
250 |
|
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|
251 |
greg |
2.33 |
if (!scan) |
252 |
greg |
2.1 |
return(0); |
253 |
greg |
2.60 |
if (!rmx_prepare(rm)) { |
254 |
|
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free(scan); |
255 |
greg |
2.50 |
return(0); |
256 |
greg |
2.60 |
} |
257 |
greg |
2.1 |
for (i = 0; i < rm->nrows; i++) { |
258 |
greg |
2.57 |
double *dp = rmx_lval(rm,i,0); |
259 |
greg |
2.1 |
if (freadscan(scan, rm->ncols, fp) < 0) { |
260 |
|
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free(scan); |
261 |
|
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return(0); |
262 |
|
|
} |
263 |
greg |
2.53 |
for (j = 0; j < rm->ncols; j++, dp += 3) { |
264 |
|
|
dp[0] = colval(scan[j],RED); |
265 |
|
|
dp[1] = colval(scan[j],GRN); |
266 |
|
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dp[2] = colval(scan[j],BLU); |
267 |
greg |
2.1 |
} |
268 |
|
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} |
269 |
|
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free(scan); |
270 |
|
|
return(1); |
271 |
|
|
} |
272 |
|
|
|
273 |
greg |
2.60 |
static int |
274 |
|
|
rmx_load_spec(RMATRIX *rm, FILE *fp) |
275 |
|
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{ |
276 |
|
|
uby8 *scan; |
277 |
|
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SCOLOR scol; |
278 |
|
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int i, j, k; |
279 |
|
|
|
280 |
|
|
if (rm->ncomp < 3) |
281 |
|
|
return(0); |
282 |
|
|
scan = (uby8 *)malloc((rm->ncomp+1)*rm->ncols); |
283 |
|
|
if (!scan) |
284 |
|
|
return(0); |
285 |
|
|
if (!rmx_prepare(rm)) { |
286 |
|
|
free(scan); |
287 |
|
|
return(0); |
288 |
|
|
} |
289 |
|
|
for (i = 0; i < rm->nrows; i++) { |
290 |
|
|
double *dp = rmx_lval(rm,i,0); |
291 |
|
|
if (freadscolrs(scan, rm->ncomp, rm->ncols, fp) < 0) { |
292 |
|
|
free(scan); |
293 |
|
|
return(0); |
294 |
|
|
} |
295 |
|
|
for (j = 0; j < rm->ncols; j++) { |
296 |
|
|
scolr2scolor(scol, scan+j*(rm->ncomp+1), rm->ncomp); |
297 |
|
|
for (k = 0; k < rm->ncomp; k++) |
298 |
|
|
*dp++ = scol[k]; |
299 |
|
|
} |
300 |
|
|
} |
301 |
|
|
free(scan); |
302 |
|
|
return(1); |
303 |
|
|
} |
304 |
|
|
|
305 |
greg |
2.62 |
/* Read matrix header from input stream (cannot be XML) */ |
306 |
|
|
int |
307 |
|
|
rmx_load_header(RMATRIX *rm, FILE *fp) |
308 |
|
|
{ |
309 |
|
|
if (!rm | !fp) |
310 |
greg |
2.63 |
return(0); |
311 |
greg |
2.62 |
if (rm->info) { /* clear state */ |
312 |
|
|
free(rm->info); |
313 |
|
|
rm->info = NULL; |
314 |
|
|
} |
315 |
|
|
if (rm->mtx) { /* ...and data */ |
316 |
|
|
#ifdef MAP_FILE |
317 |
|
|
if (rm->mapped) { |
318 |
|
|
munmap(rm->mapped, mapped_size(rm)); |
319 |
|
|
rm->mapped = NULL; |
320 |
|
|
} else |
321 |
|
|
#endif |
322 |
|
|
free(rm->mtx); |
323 |
|
|
rm->mtx = NULL; |
324 |
|
|
} |
325 |
|
|
if (rm->nrows | rm->ncols | !rm->dtype) { |
326 |
|
|
rm->nrows = rm->ncols = 0; |
327 |
|
|
rm->ncomp = 3; |
328 |
|
|
setcolor(rm->cexp, 1.f, 1.f, 1.f); |
329 |
|
|
memcpy(rm->wlpart, WLPART, sizeof(rm->wlpart)); |
330 |
greg |
2.63 |
rm->swapin = 0; |
331 |
greg |
2.62 |
} |
332 |
|
|
SET_FILE_BINARY(fp); |
333 |
|
|
rm->dtype = DTascii; /* assumed w/o FORMAT */ |
334 |
|
|
if (getheader(fp, get_dminfo, rm) < 0) { |
335 |
|
|
fputs("Unrecognized matrix format\n", stderr); |
336 |
greg |
2.63 |
return(0); |
337 |
greg |
2.62 |
} |
338 |
|
|
/* resolution string? */ |
339 |
|
|
if ((rm->nrows <= 0) | (rm->ncols <= 0)) { |
340 |
|
|
if (!fscnresolu(&rm->ncols, &rm->nrows, fp)) |
341 |
greg |
2.63 |
return(0); |
342 |
greg |
2.62 |
if ((rm->dtype == DTrgbe) | (rm->dtype == DTxyze) && |
343 |
|
|
rm->ncomp != 3) |
344 |
greg |
2.63 |
return(0); |
345 |
greg |
2.62 |
} |
346 |
greg |
2.63 |
return(1); |
347 |
greg |
2.62 |
} |
348 |
|
|
|
349 |
|
|
/* Allocate & load post-header data from stream given type set in rm->dtype */ |
350 |
|
|
int |
351 |
|
|
rmx_load_data(RMATRIX *rm, FILE *fp) |
352 |
|
|
{ |
353 |
|
|
switch (rm->dtype) { |
354 |
|
|
case DTascii: |
355 |
|
|
SET_FILE_TEXT(fp); |
356 |
|
|
return(rmx_load_ascii(rm, fp)); |
357 |
|
|
case DTfloat: |
358 |
|
|
return(rmx_load_float(rm, fp)); |
359 |
|
|
case DTdouble: |
360 |
|
|
return(rmx_load_double(rm, fp)); |
361 |
|
|
case DTrgbe: |
362 |
|
|
case DTxyze: |
363 |
|
|
return(rmx_load_rgbe(rm, fp)); |
364 |
|
|
case DTspec: |
365 |
|
|
return(rmx_load_spec(rm, fp)); |
366 |
|
|
default: |
367 |
|
|
fputs("Unsupported data type in rmx_loaddata()\n", stderr); |
368 |
|
|
} |
369 |
|
|
return(0); |
370 |
|
|
} |
371 |
|
|
|
372 |
greg |
2.1 |
/* Load matrix from supported file type */ |
373 |
|
|
RMATRIX * |
374 |
greg |
2.46 |
rmx_load(const char *inspec, RMPref rmp) |
375 |
greg |
2.1 |
{ |
376 |
greg |
2.46 |
FILE *fp; |
377 |
greg |
2.1 |
RMATRIX *dnew; |
378 |
greg |
2.62 |
int ok; |
379 |
greg |
2.1 |
|
380 |
greg |
2.47 |
if (!inspec) |
381 |
|
|
inspec = stdin_name; |
382 |
|
|
else if (!*inspec) |
383 |
greg |
2.46 |
return(NULL); |
384 |
greg |
2.62 |
if (inspec == stdin_name) /* reading from stdin? */ |
385 |
greg |
2.46 |
fp = stdin; |
386 |
greg |
2.62 |
else if (inspec[0] == '!') |
387 |
|
|
fp = popen(inspec+1, "r"); |
388 |
|
|
else { |
389 |
greg |
2.13 |
const char *sp = inspec; /* check suffix */ |
390 |
greg |
2.1 |
while (*sp) |
391 |
|
|
++sp; |
392 |
greg |
2.13 |
while (sp > inspec && sp[-1] != '.') |
393 |
greg |
2.1 |
--sp; |
394 |
|
|
if (!strcasecmp(sp, "XML")) { /* assume it's a BSDF */ |
395 |
greg |
2.46 |
CMATRIX *cm = rmp==RMPtrans ? cm_loadBTDF(inspec) : |
396 |
|
|
cm_loadBRDF(inspec, rmp==RMPreflB) ; |
397 |
greg |
2.33 |
if (!cm) |
398 |
greg |
2.1 |
return(NULL); |
399 |
|
|
dnew = rmx_from_cmatrix(cm); |
400 |
|
|
cm_free(cm); |
401 |
greg |
2.18 |
dnew->dtype = DTascii; |
402 |
greg |
2.62 |
return(dnew); /* return here */ |
403 |
|
|
} /* else open it ourselves */ |
404 |
|
|
fp = fopen(inspec, "r"); |
405 |
greg |
2.1 |
} |
406 |
greg |
2.62 |
if (!fp) |
407 |
|
|
return(NULL); |
408 |
greg |
2.1 |
#ifdef getc_unlocked |
409 |
|
|
flockfile(fp); |
410 |
|
|
#endif |
411 |
greg |
2.62 |
/* load header info */ |
412 |
greg |
2.63 |
if (!rmx_load_header(dnew = rmx_new(0,0,3), fp)) { |
413 |
greg |
2.62 |
fprintf(stderr, "Bad header in: %s\n", inspec); |
414 |
|
|
if (inspec[0] == '!') pclose(fp); |
415 |
|
|
else fclose(fp); |
416 |
|
|
rmx_free(dnew); |
417 |
greg |
2.1 |
return(NULL); |
418 |
|
|
} |
419 |
greg |
2.62 |
ok = rmx_load_data(dnew, fp); /* allocate & load data */ |
420 |
|
|
|
421 |
|
|
if (fp != stdin) { /* close input stream */ |
422 |
greg |
2.13 |
if (inspec[0] == '!') |
423 |
|
|
pclose(fp); |
424 |
|
|
else |
425 |
|
|
fclose(fp); |
426 |
|
|
} |
427 |
|
|
#ifdef getc_unlocked |
428 |
|
|
else |
429 |
|
|
funlockfile(fp); |
430 |
|
|
#endif |
431 |
greg |
2.62 |
if (!ok) { /* load failure? */ |
432 |
|
|
fprintf(stderr, "Error loading data from: %s\n", inspec); |
433 |
|
|
rmx_free(dnew); |
434 |
|
|
return(NULL); |
435 |
|
|
} |
436 |
greg |
2.58 |
/* undo exposure? */ |
437 |
greg |
2.60 |
if ((dnew->cexp[0] != 1.f) | |
438 |
greg |
2.58 |
(dnew->cexp[1] != 1.f) | (dnew->cexp[2] != 1.f)) { |
439 |
greg |
2.60 |
double cmlt[MAXCSAMP]; |
440 |
|
|
int i; |
441 |
greg |
2.58 |
cmlt[0] = 1./dnew->cexp[0]; |
442 |
|
|
cmlt[1] = 1./dnew->cexp[1]; |
443 |
|
|
cmlt[2] = 1./dnew->cexp[2]; |
444 |
greg |
2.62 |
if (dnew->ncomp > MAXCSAMP) { |
445 |
|
|
fprintf(stderr, "Excess spectral components in: %s\n", |
446 |
|
|
inspec); |
447 |
|
|
rmx_free(dnew); |
448 |
|
|
return(NULL); |
449 |
|
|
} |
450 |
greg |
2.60 |
for (i = dnew->ncomp; i-- > 3; ) |
451 |
|
|
cmlt[i] = cmlt[1]; |
452 |
greg |
2.58 |
rmx_scale(dnew, cmlt); |
453 |
|
|
setcolor(dnew->cexp, 1.f, 1.f, 1.f); |
454 |
|
|
} |
455 |
greg |
2.1 |
return(dnew); |
456 |
|
|
} |
457 |
|
|
|
458 |
|
|
static int |
459 |
|
|
rmx_write_ascii(const RMATRIX *rm, FILE *fp) |
460 |
|
|
{ |
461 |
greg |
2.30 |
const char *fmt = (rm->dtype == DTfloat) ? " %.7e" : |
462 |
greg |
2.60 |
(rm->dtype == DTrgbe) | (rm->dtype == DTxyze) | |
463 |
|
|
(rm->dtype == DTspec) ? " %.3e" : " %.15e" ; |
464 |
greg |
2.1 |
int i, j, k; |
465 |
greg |
2.17 |
|
466 |
greg |
2.1 |
for (i = 0; i < rm->nrows; i++) { |
467 |
|
|
for (j = 0; j < rm->ncols; j++) { |
468 |
greg |
2.62 |
const double *dp = rmx_val(rm,i,j); |
469 |
greg |
2.1 |
for (k = 0; k < rm->ncomp; k++) |
470 |
greg |
2.53 |
fprintf(fp, fmt, dp[k]); |
471 |
greg |
2.1 |
fputc('\t', fp); |
472 |
|
|
} |
473 |
|
|
fputc('\n', fp); |
474 |
|
|
} |
475 |
|
|
return(1); |
476 |
|
|
} |
477 |
|
|
|
478 |
|
|
static int |
479 |
|
|
rmx_write_float(const RMATRIX *rm, FILE *fp) |
480 |
|
|
{ |
481 |
|
|
int i, j, k; |
482 |
|
|
float val[100]; |
483 |
|
|
|
484 |
|
|
if (rm->ncomp > 100) { |
485 |
|
|
fputs("Unsupported # components in rmx_write_float()\n", stderr); |
486 |
|
|
exit(1); |
487 |
|
|
} |
488 |
|
|
for (i = 0; i < rm->nrows; i++) |
489 |
|
|
for (j = 0; j < rm->ncols; j++) { |
490 |
greg |
2.62 |
const double *dp = rmx_val(rm,i,j); |
491 |
greg |
2.1 |
for (k = rm->ncomp; k--; ) |
492 |
greg |
2.53 |
val[k] = (float)dp[k]; |
493 |
|
|
if (putbinary(val, sizeof(float), rm->ncomp, fp) != rm->ncomp) |
494 |
greg |
2.1 |
return(0); |
495 |
|
|
} |
496 |
|
|
return(1); |
497 |
|
|
} |
498 |
|
|
|
499 |
|
|
static int |
500 |
|
|
rmx_write_double(const RMATRIX *rm, FILE *fp) |
501 |
|
|
{ |
502 |
greg |
2.52 |
int i; |
503 |
greg |
2.1 |
|
504 |
|
|
for (i = 0; i < rm->nrows; i++) |
505 |
greg |
2.62 |
if (putbinary(rmx_val(rm,i,0), sizeof(double)*rm->ncomp, |
506 |
greg |
2.52 |
rm->ncols, fp) != rm->ncols) |
507 |
greg |
2.1 |
return(0); |
508 |
|
|
return(1); |
509 |
|
|
} |
510 |
|
|
|
511 |
|
|
static int |
512 |
|
|
rmx_write_rgbe(const RMATRIX *rm, FILE *fp) |
513 |
|
|
{ |
514 |
greg |
2.27 |
COLR *scan = (COLR *)malloc(sizeof(COLR)*rm->ncols); |
515 |
greg |
2.1 |
int i, j; |
516 |
|
|
|
517 |
greg |
2.33 |
if (!scan) |
518 |
greg |
2.1 |
return(0); |
519 |
|
|
for (i = 0; i < rm->nrows; i++) { |
520 |
greg |
2.53 |
for (j = rm->ncols; j--; ) { |
521 |
greg |
2.62 |
const double *dp = rmx_val(rm,i,j); |
522 |
greg |
2.54 |
if (rm->ncomp == 1) |
523 |
|
|
setcolr(scan[j], dp[0], dp[0], dp[0]); |
524 |
|
|
else |
525 |
|
|
setcolr(scan[j], dp[0], dp[1], dp[2]); |
526 |
greg |
2.53 |
} |
527 |
greg |
2.27 |
if (fwritecolrs(scan, rm->ncols, fp) < 0) { |
528 |
greg |
2.1 |
free(scan); |
529 |
|
|
return(0); |
530 |
|
|
} |
531 |
|
|
} |
532 |
|
|
free(scan); |
533 |
|
|
return(1); |
534 |
|
|
} |
535 |
|
|
|
536 |
greg |
2.60 |
static int |
537 |
|
|
rmx_write_spec(const RMATRIX *rm, FILE *fp) |
538 |
|
|
{ |
539 |
|
|
uby8 *scan = (uby8 *)malloc((rm->ncomp+1)*rm->ncols); |
540 |
|
|
int ok = 1; |
541 |
|
|
SCOLOR scol; |
542 |
|
|
int i, j, k; |
543 |
|
|
|
544 |
|
|
if (!scan) |
545 |
|
|
return(0); |
546 |
|
|
for (i = 0; i < rm->nrows; i++) { |
547 |
|
|
for (j = rm->ncols; j--; ) { |
548 |
greg |
2.62 |
const double *dp = rmx_val(rm,i,j); |
549 |
greg |
2.61 |
for (k = rm->ncomp; k--; ) |
550 |
greg |
2.60 |
scol[k] = dp[k]; |
551 |
greg |
2.61 |
scolor2scolr(scan+j*(rm->ncomp+1), scol, rm->ncomp); |
552 |
greg |
2.60 |
} |
553 |
greg |
2.61 |
if (fwritescolrs(scan, rm->ncomp, rm->ncols, fp) < 0) { |
554 |
greg |
2.60 |
ok = 0; |
555 |
|
|
break; |
556 |
|
|
} |
557 |
|
|
} |
558 |
|
|
free(scan); |
559 |
|
|
return(ok); |
560 |
|
|
} |
561 |
|
|
|
562 |
greg |
2.48 |
/* Check if CIE XYZ primaries were specified */ |
563 |
|
|
static int |
564 |
|
|
findCIEprims(const char *info) |
565 |
|
|
{ |
566 |
|
|
RGBPRIMS prims; |
567 |
|
|
|
568 |
|
|
if (!info) |
569 |
|
|
return(0); |
570 |
|
|
info = strstr(info, PRIMARYSTR); |
571 |
|
|
if (!info || !primsval(prims, info)) |
572 |
|
|
return(0); |
573 |
|
|
|
574 |
|
|
return((prims[RED][CIEX] > .99) & (prims[RED][CIEY] < .01) && |
575 |
|
|
(prims[GRN][CIEX] < .01) & (prims[GRN][CIEY] > .99) && |
576 |
|
|
(prims[BLU][CIEX] < .01) & (prims[BLU][CIEY] < .01)); |
577 |
|
|
} |
578 |
|
|
|
579 |
greg |
2.6 |
/* Write matrix to file type indicated by dtype */ |
580 |
greg |
2.10 |
int |
581 |
greg |
2.1 |
rmx_write(const RMATRIX *rm, int dtype, FILE *fp) |
582 |
|
|
{ |
583 |
|
|
int ok = 1; |
584 |
|
|
|
585 |
greg |
2.52 |
if (!rm | !fp || !rm->mtx) |
586 |
greg |
2.1 |
return(0); |
587 |
greg |
2.17 |
#ifdef getc_unlocked |
588 |
|
|
flockfile(fp); |
589 |
|
|
#endif |
590 |
greg |
2.1 |
/* complete header */ |
591 |
greg |
2.5 |
if (rm->info) |
592 |
|
|
fputs(rm->info, fp); |
593 |
greg |
2.6 |
if (dtype == DTfromHeader) |
594 |
|
|
dtype = rm->dtype; |
595 |
greg |
2.48 |
else if (dtype == DTrgbe && (rm->dtype == DTxyze || |
596 |
|
|
findCIEprims(rm->info))) |
597 |
greg |
2.6 |
dtype = DTxyze; |
598 |
greg |
2.9 |
else if ((dtype == DTxyze) & (rm->dtype == DTrgbe)) |
599 |
greg |
2.6 |
dtype = DTrgbe; |
600 |
greg |
2.60 |
/* write exposure? */ |
601 |
|
|
if (rm->ncomp == 3 && (rm->cexp[RED] != rm->cexp[GRN]) | |
602 |
|
|
(rm->cexp[GRN] != rm->cexp[BLU])) |
603 |
|
|
fputcolcor(rm->cexp, fp); |
604 |
|
|
else if (rm->cexp[GRN] != 1.f) |
605 |
|
|
fputexpos(rm->cexp[GRN], fp); |
606 |
greg |
2.1 |
if ((dtype != DTrgbe) & (dtype != DTxyze)) { |
607 |
greg |
2.60 |
if (dtype == DTspec) { |
608 |
|
|
if (rm->ncomp < 3) |
609 |
|
|
return(0); /* bad # components */ |
610 |
|
|
fputwlsplit(rm->wlpart, fp); |
611 |
|
|
} else { |
612 |
|
|
fprintf(fp, "NROWS=%d\n", rm->nrows); |
613 |
|
|
fprintf(fp, "NCOLS=%d\n", rm->ncols); |
614 |
|
|
} |
615 |
|
|
fputncomp(rm->ncomp, fp); |
616 |
greg |
2.54 |
} else if ((rm->ncomp != 3) & (rm->ncomp != 1)) |
617 |
|
|
return(0); /* wrong # components */ |
618 |
greg |
2.35 |
if ((dtype == DTfloat) | (dtype == DTdouble)) |
619 |
|
|
fputendian(fp); /* important to record */ |
620 |
greg |
2.49 |
fputformat(cm_fmt_id[dtype], fp); |
621 |
greg |
2.1 |
fputc('\n', fp); |
622 |
|
|
switch (dtype) { /* write data */ |
623 |
|
|
case DTascii: |
624 |
|
|
ok = rmx_write_ascii(rm, fp); |
625 |
|
|
break; |
626 |
|
|
case DTfloat: |
627 |
|
|
ok = rmx_write_float(rm, fp); |
628 |
|
|
break; |
629 |
|
|
case DTdouble: |
630 |
|
|
ok = rmx_write_double(rm, fp); |
631 |
|
|
break; |
632 |
|
|
case DTrgbe: |
633 |
|
|
case DTxyze: |
634 |
|
|
fprtresolu(rm->ncols, rm->nrows, fp); |
635 |
|
|
ok = rmx_write_rgbe(rm, fp); |
636 |
|
|
break; |
637 |
greg |
2.60 |
case DTspec: |
638 |
|
|
fprtresolu(rm->ncols, rm->nrows, fp); |
639 |
|
|
ok = rmx_write_spec(rm, fp); |
640 |
|
|
break; |
641 |
greg |
2.1 |
default: |
642 |
|
|
return(0); |
643 |
|
|
} |
644 |
|
|
ok &= (fflush(fp) == 0); |
645 |
greg |
2.17 |
#ifdef getc_unlocked |
646 |
|
|
funlockfile(fp); |
647 |
|
|
#endif |
648 |
greg |
2.62 |
if (!ok) fputs("Error writing matrix\n", stderr); |
649 |
greg |
2.10 |
return(ok); |
650 |
greg |
2.1 |
} |
651 |
|
|
|
652 |
|
|
/* Allocate and assign square identity matrix with n components */ |
653 |
|
|
RMATRIX * |
654 |
|
|
rmx_identity(const int dim, const int n) |
655 |
|
|
{ |
656 |
|
|
RMATRIX *rid = rmx_alloc(dim, dim, n); |
657 |
greg |
2.12 |
int i, k; |
658 |
greg |
2.1 |
|
659 |
greg |
2.33 |
if (!rid) |
660 |
greg |
2.1 |
return(NULL); |
661 |
greg |
2.52 |
memset(rid->mtx, 0, array_size(rid)); |
662 |
greg |
2.53 |
for (i = dim; i--; ) { |
663 |
|
|
double *dp = rmx_lval(rid,i,i); |
664 |
greg |
2.12 |
for (k = n; k--; ) |
665 |
greg |
2.53 |
dp[k] = 1.; |
666 |
|
|
} |
667 |
greg |
2.1 |
return(rid); |
668 |
|
|
} |
669 |
|
|
|
670 |
|
|
/* Duplicate the given matrix */ |
671 |
|
|
RMATRIX * |
672 |
|
|
rmx_copy(const RMATRIX *rm) |
673 |
|
|
{ |
674 |
|
|
RMATRIX *dnew; |
675 |
|
|
|
676 |
greg |
2.33 |
if (!rm) |
677 |
greg |
2.1 |
return(NULL); |
678 |
|
|
dnew = rmx_alloc(rm->nrows, rm->ncols, rm->ncomp); |
679 |
greg |
2.33 |
if (!dnew) |
680 |
greg |
2.1 |
return(NULL); |
681 |
greg |
2.5 |
rmx_addinfo(dnew, rm->info); |
682 |
greg |
2.6 |
dnew->dtype = rm->dtype; |
683 |
greg |
2.60 |
copycolor(dnew->cexp, rm->cexp); |
684 |
|
|
memcpy(dnew->wlpart, rm->wlpart, sizeof(dnew->wlpart)); |
685 |
greg |
2.52 |
memcpy(dnew->mtx, rm->mtx, array_size(dnew)); |
686 |
greg |
2.1 |
return(dnew); |
687 |
|
|
} |
688 |
|
|
|
689 |
greg |
2.2 |
/* Allocate and assign transposed matrix */ |
690 |
|
|
RMATRIX * |
691 |
|
|
rmx_transpose(const RMATRIX *rm) |
692 |
greg |
2.1 |
{ |
693 |
greg |
2.2 |
RMATRIX *dnew; |
694 |
greg |
2.55 |
int i, j; |
695 |
greg |
2.1 |
|
696 |
greg |
2.33 |
if (!rm) |
697 |
greg |
2.1 |
return(0); |
698 |
greg |
2.31 |
if ((rm->nrows == 1) | (rm->ncols == 1)) { |
699 |
|
|
dnew = rmx_copy(rm); |
700 |
greg |
2.33 |
if (!dnew) |
701 |
greg |
2.32 |
return(NULL); |
702 |
greg |
2.31 |
dnew->nrows = rm->ncols; |
703 |
|
|
dnew->ncols = rm->nrows; |
704 |
|
|
return(dnew); |
705 |
|
|
} |
706 |
greg |
2.2 |
dnew = rmx_alloc(rm->ncols, rm->nrows, rm->ncomp); |
707 |
greg |
2.33 |
if (!dnew) |
708 |
greg |
2.2 |
return(NULL); |
709 |
greg |
2.5 |
if (rm->info) { |
710 |
|
|
rmx_addinfo(dnew, rm->info); |
711 |
|
|
rmx_addinfo(dnew, "Transposed rows and columns\n"); |
712 |
|
|
} |
713 |
greg |
2.6 |
dnew->dtype = rm->dtype; |
714 |
greg |
2.60 |
copycolor(dnew->cexp, rm->cexp); |
715 |
|
|
memcpy(dnew->wlpart, rm->wlpart, sizeof(dnew->wlpart)); |
716 |
greg |
2.56 |
for (j = dnew->ncols; j--; ) |
717 |
|
|
for (i = dnew->nrows; i--; ) |
718 |
greg |
2.62 |
memcpy(rmx_lval(dnew,i,j), rmx_val(rm,j,i), |
719 |
greg |
2.53 |
sizeof(double)*dnew->ncomp); |
720 |
greg |
2.2 |
return(dnew); |
721 |
greg |
2.1 |
} |
722 |
|
|
|
723 |
|
|
/* Multiply (concatenate) two matrices and allocate the result */ |
724 |
|
|
RMATRIX * |
725 |
|
|
rmx_multiply(const RMATRIX *m1, const RMATRIX *m2) |
726 |
|
|
{ |
727 |
|
|
RMATRIX *mres; |
728 |
|
|
int i, j, k, h; |
729 |
|
|
|
730 |
greg |
2.33 |
if (!m1 | !m2 || (m1->ncomp != m2->ncomp) | (m1->ncols != m2->nrows)) |
731 |
greg |
2.1 |
return(NULL); |
732 |
|
|
mres = rmx_alloc(m1->nrows, m2->ncols, m1->ncomp); |
733 |
greg |
2.33 |
if (!mres) |
734 |
greg |
2.1 |
return(NULL); |
735 |
greg |
2.6 |
i = rmx_newtype(m1->dtype, m2->dtype); |
736 |
|
|
if (i) |
737 |
|
|
mres->dtype = i; |
738 |
|
|
else |
739 |
|
|
rmx_addinfo(mres, rmx_mismatch_warn); |
740 |
greg |
2.1 |
for (i = mres->nrows; i--; ) |
741 |
|
|
for (j = mres->ncols; j--; ) |
742 |
greg |
2.8 |
for (k = mres->ncomp; k--; ) { |
743 |
greg |
2.53 |
double d = 0; |
744 |
greg |
2.8 |
for (h = m1->ncols; h--; ) |
745 |
greg |
2.62 |
d += rmx_val(m1,i,h)[k] * rmx_val(m2,h,j)[k]; |
746 |
greg |
2.53 |
rmx_lval(mres,i,j)[k] = d; |
747 |
greg |
2.1 |
} |
748 |
|
|
return(mres); |
749 |
|
|
} |
750 |
|
|
|
751 |
greg |
2.25 |
/* Element-wise multiplication (or division) of m2 into m1 */ |
752 |
|
|
int |
753 |
|
|
rmx_elemult(RMATRIX *m1, const RMATRIX *m2, int divide) |
754 |
|
|
{ |
755 |
|
|
int zeroDivides = 0; |
756 |
|
|
int i, j, k; |
757 |
|
|
|
758 |
greg |
2.33 |
if (!m1 | !m2 || (m1->ncols != m2->ncols) | (m1->nrows != m2->nrows)) |
759 |
greg |
2.25 |
return(0); |
760 |
|
|
if ((m2->ncomp > 1) & (m2->ncomp != m1->ncomp)) |
761 |
|
|
return(0); |
762 |
|
|
i = rmx_newtype(m1->dtype, m2->dtype); |
763 |
|
|
if (i) |
764 |
|
|
m1->dtype = i; |
765 |
|
|
else |
766 |
|
|
rmx_addinfo(m1, rmx_mismatch_warn); |
767 |
|
|
for (i = m1->nrows; i--; ) |
768 |
|
|
for (j = m1->ncols; j--; ) |
769 |
|
|
if (divide) { |
770 |
|
|
double d; |
771 |
|
|
if (m2->ncomp == 1) { |
772 |
greg |
2.62 |
d = rmx_val(m2,i,j)[0]; |
773 |
greg |
2.25 |
if (d == 0) { |
774 |
|
|
++zeroDivides; |
775 |
|
|
for (k = m1->ncomp; k--; ) |
776 |
greg |
2.53 |
rmx_lval(m1,i,j)[k] = 0; |
777 |
greg |
2.25 |
} else { |
778 |
|
|
d = 1./d; |
779 |
|
|
for (k = m1->ncomp; k--; ) |
780 |
greg |
2.53 |
rmx_lval(m1,i,j)[k] *= d; |
781 |
greg |
2.25 |
} |
782 |
|
|
} else |
783 |
|
|
for (k = m1->ncomp; k--; ) { |
784 |
greg |
2.62 |
d = rmx_val(m2,i,j)[k]; |
785 |
greg |
2.25 |
if (d == 0) { |
786 |
|
|
++zeroDivides; |
787 |
greg |
2.53 |
rmx_lval(m1,i,j)[k] = 0; |
788 |
greg |
2.25 |
} else |
789 |
greg |
2.53 |
rmx_lval(m1,i,j)[k] /= d; |
790 |
greg |
2.25 |
} |
791 |
|
|
} else { |
792 |
|
|
if (m2->ncomp == 1) { |
793 |
greg |
2.62 |
const double d = rmx_val(m2,i,j)[0]; |
794 |
greg |
2.25 |
for (k = m1->ncomp; k--; ) |
795 |
greg |
2.53 |
rmx_lval(m1,i,j)[k] *= d; |
796 |
greg |
2.25 |
} else |
797 |
|
|
for (k = m1->ncomp; k--; ) |
798 |
greg |
2.62 |
rmx_lval(m1,i,j)[k] *= rmx_val(m2,i,j)[k]; |
799 |
greg |
2.25 |
} |
800 |
|
|
if (zeroDivides) { |
801 |
greg |
2.34 |
rmx_addinfo(m1, "WARNING: zero divide(s) corrupted results\n"); |
802 |
greg |
2.25 |
errno = ERANGE; |
803 |
|
|
} |
804 |
|
|
return(1); |
805 |
|
|
} |
806 |
|
|
|
807 |
greg |
2.1 |
/* Sum second matrix into first, applying scale factor beforehand */ |
808 |
|
|
int |
809 |
|
|
rmx_sum(RMATRIX *msum, const RMATRIX *madd, const double sf[]) |
810 |
|
|
{ |
811 |
|
|
double *mysf = NULL; |
812 |
|
|
int i, j, k; |
813 |
|
|
|
814 |
greg |
2.33 |
if (!msum | !madd || |
815 |
greg |
2.1 |
(msum->nrows != madd->nrows) | |
816 |
|
|
(msum->ncols != madd->ncols) | |
817 |
|
|
(msum->ncomp != madd->ncomp)) |
818 |
|
|
return(0); |
819 |
greg |
2.33 |
if (!sf) { |
820 |
greg |
2.1 |
mysf = (double *)malloc(sizeof(double)*msum->ncomp); |
821 |
greg |
2.33 |
if (!mysf) |
822 |
greg |
2.1 |
return(0); |
823 |
|
|
for (k = msum->ncomp; k--; ) |
824 |
|
|
mysf[k] = 1; |
825 |
|
|
sf = mysf; |
826 |
|
|
} |
827 |
greg |
2.6 |
i = rmx_newtype(msum->dtype, madd->dtype); |
828 |
|
|
if (i) |
829 |
|
|
msum->dtype = i; |
830 |
|
|
else |
831 |
|
|
rmx_addinfo(msum, rmx_mismatch_warn); |
832 |
greg |
2.1 |
for (i = msum->nrows; i--; ) |
833 |
greg |
2.53 |
for (j = msum->ncols; j--; ) { |
834 |
greg |
2.62 |
const double *da = rmx_val(madd,i,j); |
835 |
greg |
2.53 |
double *ds = rmx_lval(msum,i,j); |
836 |
greg |
2.1 |
for (k = msum->ncomp; k--; ) |
837 |
greg |
2.53 |
ds[k] += sf[k] * da[k]; |
838 |
|
|
} |
839 |
greg |
2.33 |
if (mysf) |
840 |
|
|
free(mysf); |
841 |
greg |
2.1 |
return(1); |
842 |
|
|
} |
843 |
|
|
|
844 |
|
|
/* Scale the given matrix by the indicated scalar component vector */ |
845 |
|
|
int |
846 |
|
|
rmx_scale(RMATRIX *rm, const double sf[]) |
847 |
|
|
{ |
848 |
|
|
int i, j, k; |
849 |
|
|
|
850 |
greg |
2.33 |
if (!rm | !sf) |
851 |
greg |
2.1 |
return(0); |
852 |
|
|
for (i = rm->nrows; i--; ) |
853 |
greg |
2.53 |
for (j = rm->ncols; j--; ) { |
854 |
|
|
double *dp = rmx_lval(rm,i,j); |
855 |
greg |
2.1 |
for (k = rm->ncomp; k--; ) |
856 |
greg |
2.53 |
dp[k] *= sf[k]; |
857 |
|
|
} |
858 |
greg |
2.28 |
if (rm->info) |
859 |
|
|
rmx_addinfo(rm, "Applied scalar\n"); |
860 |
greg |
2.60 |
/* XXX: should record as exposure for COLR and SCOLR types? */ |
861 |
greg |
2.1 |
return(1); |
862 |
|
|
} |
863 |
|
|
|
864 |
|
|
/* Allocate new matrix and apply component transformation */ |
865 |
|
|
RMATRIX * |
866 |
|
|
rmx_transform(const RMATRIX *msrc, int n, const double cmat[]) |
867 |
|
|
{ |
868 |
|
|
int i, j, ks, kd; |
869 |
|
|
RMATRIX *dnew; |
870 |
|
|
|
871 |
greg |
2.33 |
if (!msrc | (n <= 0) | !cmat) |
872 |
greg |
2.1 |
return(NULL); |
873 |
|
|
dnew = rmx_alloc(msrc->nrows, msrc->ncols, n); |
874 |
greg |
2.33 |
if (!dnew) |
875 |
greg |
2.1 |
return(NULL); |
876 |
greg |
2.28 |
if (msrc->info) { |
877 |
|
|
char buf[128]; |
878 |
greg |
2.38 |
sprintf(buf, "Applied %dx%d component transform\n", |
879 |
greg |
2.28 |
dnew->ncomp, msrc->ncomp); |
880 |
|
|
rmx_addinfo(dnew, msrc->info); |
881 |
|
|
rmx_addinfo(dnew, buf); |
882 |
|
|
} |
883 |
greg |
2.6 |
dnew->dtype = msrc->dtype; |
884 |
greg |
2.1 |
for (i = dnew->nrows; i--; ) |
885 |
greg |
2.53 |
for (j = dnew->ncols; j--; ) { |
886 |
greg |
2.62 |
const double *ds = rmx_val(msrc,i,j); |
887 |
greg |
2.1 |
for (kd = dnew->ncomp; kd--; ) { |
888 |
|
|
double d = 0; |
889 |
|
|
for (ks = msrc->ncomp; ks--; ) |
890 |
greg |
2.53 |
d += cmat[kd*msrc->ncomp + ks] * ds[ks]; |
891 |
|
|
rmx_lval(dnew,i,j)[kd] = d; |
892 |
greg |
2.1 |
} |
893 |
greg |
2.53 |
} |
894 |
greg |
2.1 |
return(dnew); |
895 |
|
|
} |
896 |
|
|
|
897 |
|
|
/* Convert a color matrix to newly allocated RMATRIX buffer */ |
898 |
|
|
RMATRIX * |
899 |
|
|
rmx_from_cmatrix(const CMATRIX *cm) |
900 |
|
|
{ |
901 |
|
|
int i, j; |
902 |
|
|
RMATRIX *dnew; |
903 |
|
|
|
904 |
greg |
2.33 |
if (!cm) |
905 |
greg |
2.1 |
return(NULL); |
906 |
|
|
dnew = rmx_alloc(cm->nrows, cm->ncols, 3); |
907 |
greg |
2.33 |
if (!dnew) |
908 |
greg |
2.1 |
return(NULL); |
909 |
greg |
2.6 |
dnew->dtype = DTfloat; |
910 |
greg |
2.1 |
for (i = dnew->nrows; i--; ) |
911 |
|
|
for (j = dnew->ncols; j--; ) { |
912 |
|
|
const COLORV *cv = cm_lval(cm,i,j); |
913 |
greg |
2.53 |
double *dp = rmx_lval(dnew,i,j); |
914 |
|
|
dp[0] = cv[0]; |
915 |
|
|
dp[1] = cv[1]; |
916 |
|
|
dp[2] = cv[2]; |
917 |
greg |
2.1 |
} |
918 |
|
|
return(dnew); |
919 |
|
|
} |
920 |
|
|
|
921 |
|
|
/* Convert general matrix to newly allocated CMATRIX buffer */ |
922 |
|
|
CMATRIX * |
923 |
|
|
cm_from_rmatrix(const RMATRIX *rm) |
924 |
|
|
{ |
925 |
|
|
int i, j; |
926 |
|
|
CMATRIX *cnew; |
927 |
|
|
|
928 |
greg |
2.60 |
if (!rm || !rm->mtx | (rm->ncomp == 2)) |
929 |
greg |
2.1 |
return(NULL); |
930 |
|
|
cnew = cm_alloc(rm->nrows, rm->ncols); |
931 |
greg |
2.33 |
if (!cnew) |
932 |
greg |
2.1 |
return(NULL); |
933 |
|
|
for (i = cnew->nrows; i--; ) |
934 |
|
|
for (j = cnew->ncols; j--; ) { |
935 |
greg |
2.62 |
const double *dp = rmx_val(rm,i,j); |
936 |
greg |
2.53 |
COLORV *cv = cm_lval(cnew,i,j); |
937 |
greg |
2.60 |
switch (rm->ncomp) { |
938 |
|
|
case 3: |
939 |
|
|
setcolor(cv, dp[0], dp[1], dp[2]); |
940 |
|
|
break; |
941 |
|
|
case 1: |
942 |
greg |
2.53 |
setcolor(cv, dp[0], dp[0], dp[0]); |
943 |
greg |
2.60 |
break; |
944 |
|
|
default: { |
945 |
|
|
SCOLOR scol; |
946 |
|
|
int k; |
947 |
|
|
for (k = rm->ncomp; k--; ) |
948 |
|
|
scol[k] = dp[k]; |
949 |
|
|
scolor2color(cv, scol, rm->ncomp, rm->wlpart); |
950 |
|
|
} break; |
951 |
|
|
} |
952 |
greg |
2.1 |
} |
953 |
|
|
return(cnew); |
954 |
|
|
} |