1 /****************************************************************************
2 * Copyright 2018-2021,2022 Thomas E. Dickey *
3 * Copyright 2017,2018 Free Software Foundation, Inc. *
5 * Permission is hereby granted, free of charge, to any person obtaining a *
6 * copy of this software and associated documentation files (the *
7 * "Software"), to deal in the Software without restriction, including *
8 * without limitation the rights to use, copy, modify, merge, publish, *
9 * distribute, distribute with modifications, sublicense, and/or sell *
10 * copies of the Software, and to permit persons to whom the Software is *
11 * furnished to do so, subject to the following conditions: *
13 * The above copyright notice and this permission notice shall be included *
14 * in all copies or substantial portions of the Software. *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
24 * Except as contained in this notice, the name(s) of the above copyright *
25 * holders shall not be used in advertising or otherwise to promote the *
26 * sale, use or other dealings in this Software without prior written *
28 ****************************************************************************/
30 * $Id: picsmap.c,v 1.148 2022/12/04 00:40:11 tom Exp $
32 * Author: Thomas E. Dickey
34 * A little more interesting than "dots", read a simple image into memory and
35 * measure the time taken to paint it normally vs randomly.
37 * TODO improve use of rgb-names using tsearch.
39 * TODO add option to dump picture in non-optimized mode, e.g., like tput.
40 * TODO write cells/second to stderr (or log)
41 * TODO write picture left-to-right/top-to-bottom
42 * TODO write picture randomly
43 * TODO add one-shot option vs repeat-count before exiting
44 * TODO add option "-xc" for init_color vs init_extended_color
45 * TODO add option "-xa" for init_pair vs alloc_pair
46 * TODO use pad to allow pictures larger than screen
47 * TODO add option to just use convert (which can scale) vs builtin xbm/xpm.
48 * TODO add scr_dump and scr_restore calls
49 * TODO add option for assume_default_colors
51 #include <test.priv.h>
53 #include <sys/types.h>
58 #define my_intptr_t intptr_t
60 #define my_intptr_t long
67 #undef CUR /* use only the curses interface */
75 #define MaxSCALE 1000 /* input curses ranges 0..1000 */
76 #define MaxRGB 255 /* output color ranges 0..255 */
77 #define okCOLOR(n) ((n) >= 0 && (n) < COLORS)
78 #define okSCALE(n) ((n) >= 0 && (n) <= MaxSCALE)
79 #define Scaled256(n) (NCURSES_COLOR_T) (int)(((double)(n) * MaxSCALE) / 255)
80 #define ScaledColor(n) (NCURSES_COLOR_T) (int)(((double)(n) * MaxSCALE) / scale)
83 #define RGB_PATH "/etc/X11/rgb.txt"
99 #define MAX(a,b) ((a)>(b)?(a):(b))
102 * tfind will return null on failure, so we map subscripts starting at one.
104 #define P2I(n) (((int)(my_intptr_t)(n)) - 1)
105 #define I2P(n) (void *)(my_intptr_t)((n) + 1)
107 #define pause_curses() if (in_curses) stop_curses()
109 #define debugmsg if (debugging) logmsg
110 #define debugmsg2 if (debugging) logmsg2
112 static GCC_NORETURN void cleanup(int);
113 static void giveup(const char *fmt, ...) GCC_PRINTFLIKE(1, 2);
114 static void logmsg(const char *fmt, ...) GCC_PRINTFLIKE(1, 2);
115 static void logmsg2(const char *fmt, ...) GCC_PRINTFLIKE(1, 2);
116 static void warning(const char *fmt, ...) GCC_PRINTFLIKE(1, 2);
117 static int gather_c_values(int);
119 static FILE *logfp = 0;
120 static double aspect_ratio = 0.6;
121 static bool in_curses = FALSE;
122 static bool debugging = FALSE;
123 static bool quiet = FALSE;
124 static int slow_time = -1;
125 static RGB_NAME *rgb_table;
126 static RGB_DATA *all_colors;
127 static HOW_MUCH how_much;
129 static int reading_last;
130 static int reading_size;
131 static FG_NODE *reading_ncols;
134 static void *reading_ntree;
137 #if HAVE_ALLOC_PAIR && USE_EXTENDED_COLOR
138 #define USE_EXTENDED_COLORS 1
139 static bool use_extended_pairs = FALSE;
140 static bool use_extended_colors = FALSE;
142 #define USE_EXTENDED_COLORS 0
146 logmsg(const char *fmt, ...)
151 vfprintf(logfp, fmt, ap);
159 logmsg2(const char *fmt, ...)
164 vfprintf(logfp, fmt, ap);
174 logmsg("Allocations:");
175 logmsg("%8ld file", (long) how_much.file);
176 logmsg("%8ld name", (long) how_much.name);
177 logmsg("%8ld list", (long) how_much.list);
178 logmsg("%8ld data", (long) how_much.data);
179 logmsg("%8ld head", (long) how_much.head);
180 logmsg("%8ld pair", (long) how_much.pair);
181 logmsg("%8ld cell", (long) how_much.cell);
182 logmsg("%8ld window", LINES * COLS * (long) sizeof(NCURSES_CH_T));
198 failed(const char *msg)
202 logmsg("failed with %s", strerror(save));
203 cleanup(EXIT_FAILURE);
207 warning(const char *fmt, ...)
212 vfprintf(logfp, fmt, ap);
219 vfprintf(stderr, fmt, ap);
222 cleanup(EXIT_FAILURE);
227 free_data(char **data)
236 free_pics_head(PICS_HEAD * pics)
249 begin_c_values(int size)
253 reading_ncols = typeCalloc(FG_NODE, size + 1);
254 how_much.pair += (sizeof(FG_NODE) * (size_t) size);
255 /* black is always the first slot, to work around P2I/I2P logic */
261 compare_c_values(const void *p, const void *q)
263 const int a = P2I(p);
264 const int b = P2I(q);
265 return (reading_ncols[a].fgcol - reading_ncols[b].fgcol);
270 check_c_values(int ln)
275 for (n = 0; n < reading_last; ++n) {
276 ft = tfind(I2P(n), &reading_ntree, compare_c_values);
279 if (reading_ncols[q].fgcol != reading_ncols[n].fgcol) {
280 logmsg("@%d, %d:%d (%d) %d %d fgcol %06X %06X", ln, n,
284 reading_ncols[n].fgcol,
285 reading_ncols[q].fgcol);
288 logmsg("@%d, %d:%d (%d) ? %d null %06X", ln, n,
292 reading_ncols[n].fgcol);
299 #define check_c_values(n) /* nothing */
304 gather_c_values(int fg)
309 int next = reading_last;
311 reading_ncols[next].fgcol = fg;
312 reading_ncols[next].count = 0;
314 check_c_values(__LINE__);
315 if ((ft = tfind(I2P(next), &reading_ntree, compare_c_values)) != 0) {
318 if (reading_last + 2 >= reading_size) {
319 int more = ((MAX(reading_last, reading_size) + 2) * 3) / 2;
320 int last = reading_last + 1;
321 FG_NODE *p = typeRealloc(FG_NODE, more, reading_ncols);
327 memset(reading_ncols + last, 0,
328 sizeof(FG_NODE) * (size_t) (more - last));
329 check_c_values(__LINE__);
332 how_much.pair += sizeof(FG_NODE);
333 if ((ft = tsearch(I2P(next), &reading_ntree, compare_c_values)) != 0) {
336 logmsg("OOPS expected slot %d, got %d", next, found);
337 debugmsg("allocated color #%d as #%06X", next, fg);
338 check_c_values(__LINE__);
344 for (n = 0; n < reading_last; ++n) {
345 if (reading_ncols[n].fgcol == fg) {
351 if (reading_last + 2 >= reading_size) {
352 int more = ((reading_last + 2) * 3) / 2;
353 FG_NODE *p = typeRealloc(FG_NODE, more, reading_ncols);
357 how_much.pair -= (sizeof(FG_NODE) * (size_t) reading_size);
358 how_much.pair += (sizeof(FG_NODE) * (size_t) more);
361 memset(reading_ncols + reading_last, 0,
362 sizeof(FG_NODE) * (size_t) (more - reading_last));
364 reading_ncols[reading_last].fgcol = fg;
365 found = reading_last++;
373 finish_c_values(PICS_HEAD * head)
375 head->colors = reading_last;
376 head->fgcol = reading_ncols;
384 dispose_c_values(void)
387 if (reading_ntree != 0) {
389 for (n = 0; n < reading_last; ++n) {
390 tdelete(I2P(n), &reading_ntree, compare_c_values);
395 if (reading_ncols != 0) {
404 is_file(const char *filename, struct stat *sb)
407 if (stat(filename, sb) == 0
408 && (sb->st_mode & S_IFMT) == S_IFREG
409 && sb->st_size != 0) {
412 debugmsg("is_file(%s) %d", filename, result);
417 * Simplify reading xbm/xpm files by first making an array of lines. Blank
418 * lines are filtered out.
421 read_file(const char *filename)
428 printf("** %s\n", filename);
431 if (is_file(filename, &sb)) {
432 size_t size = (size_t) sb.st_size;
433 char *blob = typeCalloc(char, size + 1);
437 result = typeCalloc(char *, size + 1);
438 how_much.file += ((size + 1) * 2);
440 if (blob != 0 && result != 0) {
441 FILE *fp = fopen(filename, "r");
443 logmsg("opened %s", filename);
445 if (fread(blob, sizeof(char), size, fp) == size) {
446 bool had_line = TRUE;
449 for (j = 0; (size_t) j < size; ++j) {
450 if (blob[j] == '\0' ||
451 (UChar(blob[j]) < 32 &&
452 !isspace(UChar(blob[j]))) ||
453 (UChar(blob[j]) >= 128 && UChar(blob[j]) < 160)) {
456 if (blob[j] == '\n') {
459 debugmsg2("[%5d] %s\n", k, result[k - 1]);
462 } else if (had_line) {
464 result[k++] = blob + j;
469 debugmsg2("[%5d] %s\n", k, result[k - 1]);
474 logmsg("cannot open %s", filename);
478 debugmsg("...file is empty");
483 debugmsg("...file is non-text");
492 static const char *msg[] =
494 "Usage: picsmap [options] [imagefile [...]]"
495 ,"Read/display one or more xbm/xpm files (possibly use \"convert\")"
499 ," -a ratio aspect-ratio correction for ImageMagick"
500 #if HAVE_USE_DEFAULT_COLORS
501 ," -d invoke use_default_colors"
503 ," -L add debugging information to logfile"
504 ," -l FILE write informational messages to FILE"
505 ," -p FILE color-palette file (default \"$TERM.dat\")"
507 ," -r FILE xpm uses X rgb color-names in FILE (default \"" RGB_PATH "\")"
508 ," -s SECS pause for SECS seconds after display vs getch"
509 #if USE_EXTENDED_COLORS
510 ," -x [pc] use extension (p=extended-pairs, c=extended-colors)"
511 ," Either/both extension may be given"
519 for (n = 0; n < SIZEOF(msg); n++)
520 fprintf(stderr, "%s\n", msg[n]);
521 cleanup(ok ? EXIT_SUCCESS : EXIT_FAILURE);
525 giveup(const char *fmt, ...)
533 vfprintf(stderr, fmt, ap);
539 vfprintf(logfp, fmt, ap);
549 * Palette files are named for $TERM values. However, there are fewer palette
550 * files than $TERM's. Although there are known problems (some cannot even get
551 * black and white correct), for the purpose of comparison, pretending that
552 * those map into "xterm" is useful.
555 read_palette(const char *filename)
557 static const char *data_dir = DATA_DIR;
559 size_t last = strlen(filename);
560 size_t need = (strlen(data_dir) + 20 + last);
561 char *full_name = malloc(need);
565 if (full_name != 0) {
567 for (tries = 0; tries < 8; ++tries) {
569 *(s = full_name) = '\0';
571 if (strchr(filename, '/') == 0) {
572 _nc_SPRINTF(full_name, _nc_SLIMIT(need) "%s/", data_dir);
578 if (((size_t) (s - full_name) + last + 1) >= need)
581 _nc_STRCAT(full_name, filename, need);
590 if (sscanf(t, "-%d%c", &num, &chr) == 2 &&
592 (tc = strchr(t, chr)) != 0 &&
593 !(strncmp) (tc, "color", 5)) {
600 if (found && (t != s)
601 && (strncmp) (s, "xterm", (size_t) (t - s))) {
602 _nc_SPRINTF(s, _nc_SLIMIT(need - (size_t) (s - full_name))
603 "xterm%s", filename + (t - s));
610 int len = (int) strlen(filename);
611 if (len <= 4 || strcmp(filename + len - 4, ".dat")) {
612 _nc_STRCAT(full_name, ".dat", need);
617 if (is_file(full_name, &sb))
622 result = read_file(full_name);
630 init_palette(const char *palette_file)
632 if (palette_file != 0) {
633 char **data = read_palette(palette_file);
635 all_colors = typeMalloc(RGB_DATA, (unsigned) COLORS);
636 how_much.data += (sizeof(RGB_DATA) * (unsigned) COLORS);
638 #if HAVE_COLOR_CONTENT
641 for (cp = 0; cp < COLORS; ++cp) {
642 color_content((short) cp,
644 &all_colors[cp].green,
645 &all_colors[cp].blue);
649 memset(all_colors, 0, sizeof(RGB_DATA) * (size_t) COLORS);
653 int red, green, blue;
654 int scale = MaxSCALE;
656 for (n = 0; data[n] != 0; ++n) {
657 if (sscanf(data[n], "scale:%d", &c) == 1) {
659 } else if (sscanf(data[n], "%d:%d %d %d",
669 all_colors[c].red = ScaledColor(red);
670 all_colors[c].green = ScaledColor(green);
671 all_colors[c].blue = ScaledColor(blue);
677 } else if (COLORS > 1) {
681 while (power2 < COLORS) {
686 if ((power2 != COLORS) || ((shift % 3) != 0)) {
687 if (all_colors == 0) {
688 init_palette(getenv("TERM"));
689 if (all_colors == 0) {
690 giveup("With %d colors, you need a palette-file", COLORS);
698 * Map the 24-bit RGB value to a color index if using a palette, otherwise to a
699 * direct color value.
710 int red = (value & 0xff0000) >> 16;
711 int green = (value & 0x00ff00) >> 8;
712 int blue = (value & 0x0000ff) >> 0;
714 if (all_colors != 0) {
715 #define Diff2(n,m) ((m) - all_colors[n].m) * ((m) - all_colors[n].m)
716 #define Diff2S(n) Diff2(n,red) + Diff2(n,green) + Diff2(n,blue)
721 red = Scaled256(red);
722 green = Scaled256(green);
723 blue = Scaled256(blue);
725 for (result = 0, n = 1; n < COLORS; ++n) {
726 int d = Diff2(n, red) + Diff2(n, green) + Diff2(n, blue);
732 } else { /* direct color */
736 while (power2 < COLORS) {
746 result = ((red << (2 * (8 - shifts)))
747 + (green << (8 - shifts))
765 static int match_c(const char *, const char *, ...) GCC_SCANFLIKE(2,3);
770 while (isspace(UChar(*s)))
776 skip_cs(const char *s)
778 while (isspace(UChar(*s)))
787 while (isgraph(UChar(*s)))
793 match_c(const char *source, const char *pattern, ...)
795 int limit = (int) strlen(source);
796 const char *last_s = source + limit;
804 va_start(ap, pattern);
807 while (*pattern != '\0') {
808 ch = UChar(*pattern++);
809 /* blank in the pattern matches zero-or-more blanks in source */
811 source = skip_cs(source);
814 /* %c, %d, %s are like sscanf except for special treatment of blanks */
815 if (ch == '%' && *pattern != '\0' && strchr("%cdnfsx", *pattern)) {
823 cp = va_arg(ap, char *);
826 } while (--limit > 0);
831 ip = va_arg(ap, int *);
832 lv = strtol(source, &cp, ch == 'd' ? 10 : 16);
833 if (cp != 0 && cp != source) {
841 /* floating point for pixels... */
842 fp = va_arg(ap, float *);
843 lv = strtol(source, &cp, 10);
844 if (cp == 0 || cp == source)
848 if (*source == '.') {
849 lv = strtol(++source, &cp, 10);
850 if (cp == 0 || cp == source)
854 int digits = (int) (cp - source);
855 while (digits-- > 0) {
858 *fp += (float) lv / scale;
864 /* not really sscanf... */
865 limit = *va_arg(ap, int *);
869 cp = va_arg(ap, char *);
870 while (*source != '\0') {
874 } else if (found && (ch == *skip_cs(pattern))) {
886 /* other characters are matched literally */
887 if (*source++ != ch) {
896 return (*source || *pattern) ? 0 : 1;
900 match_colors(const char *source, int cpp, char *arg1, char *arg2, char *arg3)
904 /* most files use a quasi-fixed format */
905 if (match_c(source, " \"%n%c %s %s \" , ", &cpp, arg1, arg2, arg3)) {
909 const char *s = skip_cs(source);
910 size_t have = strlen(source);
912 if (*s++ == '"' && have > ((size_t) cpp + 2)) {
913 memcpy(arg1, s, (size_t) cpp);
915 while (*s++ == '\t') {
917 for (t = arg2; (*s != '\0') && strchr("\t\"", *s) == 0;) {
925 for (t = arg3; (*s != '\0') && strchr("\t\"", *s) == 0;) {
929 if (!strcmp(arg2, "c")) {
940 parse_rgb(char **data)
944 unsigned long r, g, b;
948 RGB_NAME *result = 0;
950 for (need = 0; data[need] != 0; ++need) ;
952 result = typeCalloc(RGB_NAME, need + 2);
953 how_much.name += (sizeof(RGB_NAME) * (need + 2));
955 for (n = 0; data[n] != 0; ++n) {
956 if (strlen(t = data[n]) >= sizeof(buf) - 1)
958 if (*(s = skip_s(t)) == '!')
961 r = strtoul(s, &t, 10);
963 g = strtoul(s, &t, 10);
965 b = strtoul(s, &t, 10);
968 result[item].name = s;
970 while (t-- != s && isspace(UChar(*t))) {
973 result[item].value = (int) ((r & 0xff) << 16 |
979 result[item].name = "none";
980 result[item].value = -1;
985 #define LOWERCASE(c) ((isalpha(UChar(c)) && isupper(UChar(c))) ? tolower(UChar(c)) : (c))
988 CaselessCmp(const char *a, const char *b)
989 { /* strcasecmp isn't portable */
991 int cmp = LOWERCASE(*a) - LOWERCASE(*b);
996 return LOWERCASE(*a) - LOWERCASE(*b);
1000 lookup_rgb(const char *name)
1002 RGB_NAME *result = 0;
1003 if (rgb_table != 0) {
1005 for (n = 0; rgb_table[n].name != 0; ++n) {
1006 if (!CaselessCmp(name, rgb_table[n].name)) {
1007 result = &rgb_table[n];
1016 parse_xbm(char **data)
1029 debugmsg("called parse_xbm");
1031 result = typeCalloc(PICS_HEAD, 1);
1032 how_much.head += sizeof(PICS_HEAD);
1036 gather_c_values(0xffffff);
1038 for (n = 0; data[n] != 0; ++n) {
1039 if (strlen(s = data[n]) >= sizeof(buf) - 1)
1045 if (sscanf(s, "#define %1024s %d%c", buf, &num, &ch) >= 2) {
1046 if ((t = strstr(buf, "_width")) != 0) {
1048 result->wide = (short) bytes_of(num);
1049 } else if ((t = strstr(buf, "_height")) != 0) {
1051 result->high = (short) num;
1057 if (strcmp(result->name, buf)) {
1061 result->name = strdup(buf);
1066 if (sscanf(s, "static char %1024[^_ ]_bits[]%c", buf, &ch) >= 1) {
1067 if (strcmp(result->name, buf)) {
1071 cells = (size_t) (result->wide * result->high);
1073 result->cells = typeCalloc(PICS_CELL, cells);
1074 how_much.cell += (sizeof(PICS_CELL) * cells);
1076 if ((s = strchr(s, L_CURLY)) == 0)
1083 while (*s != '\0') {
1084 while (isspace(UChar(*s))) {
1087 if (isdigit(UChar(*s))) {
1088 long value = strtol(s, &t, 0);
1090 if (t != s || value > MaxRGB || value < 0) {
1096 for (b = 0; b < 8; ++b) {
1097 if (((1L << b) & value) != 0) {
1098 result->cells[which].ch = '*';
1099 result->cells[which].fg = 1;
1100 reading_ncols[1].count++;
1102 result->cells[which].ch = ' ';
1103 result->cells[which].fg = 0;
1104 reading_ncols[0].count++;
1106 if (++which > cells) {
1112 if (*s == R_CURLY) {
1115 } else if (*s == ',') {
1126 debugmsg("...state was only %d", state);
1128 result = free_pics_head(result);
1131 finish_c_values(result);
1137 parse_xpm(char **data)
1144 int cpp = 1; /* chars per pixel */
1158 debugmsg("called parse_xpm");
1160 result = typeCalloc(PICS_HEAD, 1);
1161 how_much.head += sizeof(PICS_HEAD);
1163 for (n = 0; data[n] != 0; ++n) {
1164 if (strlen(s = data[n]) >= sizeof(buf) - 1)
1168 if (match_c(s, " /* XPM */ ")) {
1173 if (match_c(s, " static char * %s [] = %c ", arg1, &ch) &&
1175 result->name = strdup(arg1);
1180 if (match_c(s, " \" %d %d %d %d \" , ",
1181 num + 0, num + 1, num + 2, num + 3) ||
1182 match_c(s, " \" %d %d %d %d %d %d \" , ",
1183 num + 0, num + 1, num + 2, num + 3, num + 4, num + 5)) {
1184 result->wide = (short) num[0];
1185 result->high = (short) num[1];
1186 result->colors = num[2];
1188 begin_c_values(num[2]);
1190 cells = (result->wide * result->high);
1192 result->cells = typeCalloc(PICS_CELL, cells);
1193 how_much.cell += sizeof(PICS_CELL) * (size_t) cells;
1195 list = typeCalloc(char *, result->colors + 1);
1196 how_much.list += sizeof(char *) * (size_t) (result->colors + 1);
1203 if (!match_colors(s, cpp, arg1, arg2, arg3)) {
1207 free(list[reading_last]);
1208 list[reading_last] = strdup(arg1);
1209 if ((by_name = lookup_rgb(arg3)) != 0) {
1210 found = gather_c_values(by_name->value);
1211 } else if (*arg3 == '#') {
1212 char *rgb = arg3 + 1;
1213 unsigned long value = strtoul(rgb, &s, 16);
1214 switch ((int) strlen(rgb)) {
1218 value = (((value >> 24) & 0xff0000L)
1219 | ((value >> 16) & 0xff00L)
1220 | ((value >> 8) & 0xffL));
1223 warning("unexpected rgb value %s", rgb);
1226 found = gather_c_values((int) value);
1228 found = gather_c_values(0); /* actually an error */
1230 debugmsg(" [%d:%d] %06X", num_colors, result->colors,
1231 reading_ncols[(found >= 0) ? found : 0].fgcol);
1232 if (num_colors >= result->colors) {
1233 finish_c_values(result);
1236 list[0] = strdup("\033");
1240 if (*(cs = skip_cs(s)) == '"') {
1242 while (*cs != '\0' && *cs != '"') {
1245 /* FIXME - factor out */
1246 for (c = 0; c < result->colors; ++c) {
1248 /* should not happen... */
1251 if (!(strncmp) (cs, list[c], (size_t) cpp)) {
1252 result->cells[which].ch = list[c][0];
1253 result->cells[which].fg = c;
1254 result->fgcol[c].count++;
1259 if (result->cells[which].ch == 0) {
1260 result->cells[which].ch = '?';
1261 result->cells[which].fg = 0;
1264 if (++which >= cells) {
1268 for (c = cpp; c > 0; --c, ++cs) {
1278 if (result && list) {
1279 for (n = 0; n < result->colors; ++n)
1285 debugmsg("...state was only %d", state);
1286 result = free_pics_head(result);
1290 debugmsg("...allocated %d colors", result->colors);
1297 * The obscurely-named "convert" is provided by ImageMagick
1300 parse_img(const char *filename)
1302 size_t need = strlen(filename) + 256;
1303 char *cmd = malloc(need);
1305 char buffer[BUFSIZ];
1311 int width = in_curses ? COLS : 80;
1313 _nc_SPRINTF(cmd, _nc_SLIMIT(need) "identify \"%s\"", filename);
1315 _nc_STRCAT(cmd, " 2>/dev/null", need);
1317 logmsg("...opening pipe to %s", cmd);
1319 result = typeCalloc(PICS_HEAD, 1);
1320 how_much.head += sizeof(PICS_HEAD);
1322 if ((pp = popen(cmd, "r")) != 0) {
1323 if (fgets(buffer, sizeof(buffer), pp) != 0) {
1324 size_t n = strlen(filename);
1325 debugmsg2("...read %s", buffer);
1326 if (strlen(buffer) > n &&
1327 !(strncmp) (buffer, filename, n) &&
1328 isspace(UChar(buffer[n])) &&
1329 sscanf(skip_word(buffer + n), " %dx%d ", &pic_x, &pic_y) == 2) {
1330 /* distort image to make it show normally on terminal */
1331 pic_x = (int) ((double) pic_x / aspect_ratio);
1338 if (pic_x <= 0 || pic_y <= 0)
1341 _nc_SPRINTF(cmd, _nc_SLIMIT(need)
1342 "convert " "-resize %dx%d\\! " "-thumbnail %dx \"%s\" "
1343 "-define txt:compliance=SVG txt:-",
1344 pic_x, pic_y, width, filename);
1346 _nc_STRCAT(cmd, " 2>/dev/null", need);
1348 logmsg("...opening pipe to %s", cmd);
1349 if ((pp = popen(cmd, "r")) != 0) {
1354 while (fgets(buffer, sizeof(buffer), pp) != 0) {
1355 debugmsg2("[%5d] %s", count + 1, buffer);
1356 if (strlen(buffer) > 160) { /* 80 columns would be enough */
1362 "# ImageMagick pixel enumeration: %d,%d,%d,%s ",
1363 &col, &row, &len, dummy)) {
1364 result->name = strdup(filename);
1365 result->wide = (short) col;
1366 result->high = (short) row;
1368 begin_c_values(256);
1370 result->cells = typeCalloc(PICS_CELL, (size_t) (col * row));
1371 how_much.cell += (sizeof(PICS_CELL) * (size_t) (col * row));
1378 * subsequent lines begin "col,row: (r,g,b,a) #RGB".
1379 * Those r/g/b could be integers (0..255) or float-percentages.
1381 int r, g, b, nocolor;
1385 char *s = t = strchr(buffer, '#');
1386 bool matched = FALSE;
1389 /* after the "#RGB", there are differences - just ignore */
1390 while (*s != '\0' && !isspace(UChar(*s)))
1396 "%d,%d: (%d,%d,%d,%d) #%x ",
1398 &r, &g, &b, &nocolor,
1401 } else if (match_c(buffer,
1402 "%d,%d: (%f%%,%f%%,%f%%,%d) #%x ",
1404 &rf, &gf, &bf, &nocolor,
1407 "%d,%d: (%f%%,%f%%,%f%%) #%x ",
1413 #define fp_fix(n) (int) (MaxRGB * (((n) > 100.0 ? 100.0 : (n)) / 100.0))
1419 if ((s - t) > 8) /* 6 hex digits vs 8 */
1423 int want_r = (check >> 16) & 0xff;
1424 int want_g = (check >> 8) & 0xff;
1425 int want_b = (check >> 0) & 0xff;
1427 #define fp_err(tst,ref) ((tst > MaxRGB) || ((tst - ref)*(tst - ref)) > 4)
1429 if (fp_err(r, want_r) ||
1430 fp_err(g, want_g) ||
1431 fp_err(b, want_b)) {
1435 c = gather_c_values((int) check);
1436 which = col + (row * result->wide);
1437 result->cells[which].ch = ((in_curses ||
1441 if (c >= 0 && c < reading_last) {
1442 result->cells[which].fg = c;
1443 reading_ncols[c].count++;
1445 result->cells[which].fg = -1;
1453 finish_c_values(result);
1456 /* FIXME - is this trimming needed? */
1457 for (len = result->colors; len > 3; len--) {
1458 if (result->fgcol[len - 1].fgcol == 0) {
1459 result->colors = len - 1;
1470 result = free_pics_head(result);
1477 read_picture(const char *filename, char **data)
1480 if ((pics = parse_xbm(data)) == 0) {
1482 if ((pics = parse_xpm(data)) == 0) {
1484 if ((pics = parse_img(filename)) == 0) {
1487 warning("unexpected file-format for \"%s\"", filename);
1488 } else if (pics->high == 0 || pics->wide == 0) {
1491 pics = free_pics_head(pics);
1492 warning("no picture found in \"%s\"", filename);
1499 #define fg_color(pics,n) (pics->fgcol[n].fgcol)
1502 dump_picture(PICS_HEAD * pics)
1506 printf("Name %s\n", pics->name);
1507 printf("Size %dx%d\n", pics->high, pics->wide);
1509 for (y = 0; y < pics->colors; ++y) {
1510 if (fg_color(pics, y) < 0) {
1511 printf(" %3d: %d\n", y, fg_color(pics, y));
1513 printf(" %3d: #%06x\n", y, fg_color(pics, y));
1516 for (y = 0; y < pics->high; ++y) {
1517 for (x = 0; x < pics->wide; ++x) {
1518 putchar(pics->cells[y * pics->wide + x].ch);
1524 #ifndef USE_DISPLAY_DRIVER
1526 init_display(const char *palette_path, int opt_d)
1529 if (isatty(fileno(stdout))) {
1531 setlocale(LC_ALL, "");
1538 #if HAVE_USE_DEFAULT_COLORS
1540 use_default_colors();
1542 init_palette(palette_path);
1544 scrollok(stdscr, FALSE);
1550 show_picture(PICS_HEAD * pics)
1555 debugmsg("called show_picture");
1556 logmsg("...using %dx%d screen", LINES, COLS);
1557 #if HAVE_RESET_COLOR_PAIRS
1558 reset_color_pairs();
1564 logmsg("...using %d colors", pics->colors);
1565 for (n = 0; n < pics->colors; ++n) {
1566 int my_pair = (n + 1);
1567 int my_color = map_color(fg_color(pics, n));
1568 #if USE_EXTENDED_COLORS
1569 if (use_extended_pairs) {
1570 init_extended_pair(my_pair, my_color, my_color);
1576 init_pair((short) my_pair, (short) my_color, (short) my_color);
1579 attrset(COLOR_PAIR(1));
1582 for (y = 0; y < pics->high; ++y) {
1587 for (x = 0; x < pics->wide; ++x) {
1592 n = (y * pics->wide + x);
1593 my_pair = pics->cells[n].fg + 1;
1594 #if USE_EXTENDED_COLORS
1595 if (use_extended_pairs) {
1598 wch[0] = (wchar_t) pics->cells[n].ch;
1600 setcchar(&temp, wch, A_NORMAL, (short) my_pair, &my_pair);
1605 attrset(COLOR_PAIR(my_pair));
1606 addch((chtype) pics->cells[n].ch);
1610 if (slow_time >= 0) {
1612 if (slow_time > 0) {
1613 #ifdef NCURSES_VERSION
1614 napms(1000 * slow_time);
1616 sleep((unsigned) slow_time);
1620 wmove(stdscr, 0, 0);
1629 compare_fg_counts(const void *a, const void *b)
1631 const FG_NODE *p = (const FG_NODE *) a;
1632 const FG_NODE *q = (const FG_NODE *) b;
1633 return (q->count - p->count);
1637 report_colors(PICS_HEAD * pics)
1649 qsort(pics->fgcol, (size_t) pics->colors, sizeof(FG_NODE), compare_fg_counts);
1651 * For debugging, show a (short) list of the colors used.
1653 if (debugging && (pics->colors < 1000)) {
1657 for (j = pics->colors; j != 0; j /= 10) {
1664 logmsg("These colors were used:");
1665 high = (pics->colors + wide - 1) / wide;
1666 for (j = 0; j < high && j < pics->colors; ++j) {
1670 for (k = 0; k < wide; ++k) {
1671 int n = j + (k * high);
1672 size_t want = (sizeof(buffer) - (size_t) (s - buffer));
1673 if (want < 100 || want >= sizeof(buffer))
1675 if (n >= pics->colors)
1680 _nc_SPRINTF(s, _nc_SLIMIT(want) "%*s", 8 - digits,
1685 if (pics->fgcol[n].fgcol >= 0) {
1686 _nc_SPRINTF(s, _nc_SLIMIT(want) "%3d #%06X %*d", n,
1687 pics->fgcol[n].fgcol,
1688 digits, pics->fgcol[n].count);
1690 _nc_SPRINTF(s, _nc_SLIMIT(want) "%3d (empty) %*d", n,
1691 digits, pics->fgcol[n].count);
1694 if ((s - buffer) > 100)
1697 logmsg("%s", buffer);
1702 * Given the list of colors sorted by the number of times they are used,
1703 * log a short report showing the number of colors for 90%, 99%, 99.9%,
1706 logmsg("Number of colors versus number of cells");
1707 total = pics->high * pics->wide;
1711 for (j = 0; j < pics->colors; ++j) {
1712 accum += pics->fgcol[j].count;
1713 if (accum >= (total * (1.0 - level))) {
1714 int after = (shift > 2) ? shift - 2 : 0;
1715 logmsg("%8d colors (%.1f%%) in %d cells (%.*f%%)",
1717 (100.0 * (j + 1)) / pics->colors,
1719 after, (100.0 * accum) / total);
1732 main(int argc, char *argv[])
1737 const char *palette_path = 0;
1738 const char *rgb_path = RGB_PATH;
1740 while ((ch = getopt(argc, argv, OPTS_COMMON "a:dLl:p:qr:s:x:")) != -1) {
1743 if (sscanf(optarg, "%lf%c", &aspect_ratio, &ignore_ch) != 1
1744 || aspect_ratio < 0.1
1745 || aspect_ratio > 10.) {
1746 fprintf(stderr, "Expected a number in [0.1 to 10.]: %s\n", optarg);
1750 #if HAVE_USE_DEFAULT_COLORS
1759 if ((logfp = fopen(optarg, "a")) == 0)
1763 palette_path = optarg;
1772 slow_time = atoi(optarg);
1774 #if USE_EXTENDED_COLORS
1781 use_extended_pairs = TRUE;
1784 use_extended_colors = TRUE;
1796 ExitProgram(EXIT_SUCCESS);
1798 usage(ch == OPTS_USAGE);
1803 if (optind < argc) {
1804 char **rgb_data = read_file(rgb_path);
1808 rgb_table = parse_rgb(rgb_data);
1810 init_display(palette_path, opt_d);
1812 giveup("expected at least one image filename");
1814 for (n = optind; n < argc; ++n) {
1816 char **data = read_file(argv[n]);
1819 warning("cannot read \"%s\"", argv[n]);
1822 if ((pics = read_picture(argv[n], data)) != 0) {
1828 report_colors(pics);
1831 free_pics_head(pics);
1834 free_data(rgb_data);
1841 cleanup(EXIT_SUCCESS);