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29 * $Id: picsmap.c,v 1.123 2018/06/16 22:55:45 tom Exp $
31 * Author: Thomas E. Dickey
33 * A little more interesting than "dots", read a simple image into memory and
34 * measure the time taken to paint it normally vs randomly.
36 * TODO improve use of rgb-names using tsearch.
38 * TODO add option to dump picture in non-optimized mode, e.g., like tput.
39 * TODO write cells/second to stderr (or log)
40 * TODO write picture left-to-right/top-to-bottom
41 * TODO write picture randomly
42 * TODO add one-shot option vs repeat-count before exiting
43 * TODO add option "-xc" for init_color vs init_extended_color
44 * TODO add option "-xa" for init_pair vs alloc_pair
45 * TODO use pad to allow pictures larger than screen
46 * TODO add option to just use convert (which can scale) vs builtin xbm/xpm.
47 * TODO add scr_dump and scr_restore calls
48 * TODO add option for assume_default_colors
50 #include <test.priv.h>
52 #include <sys/types.h>
57 #define my_intptr_t intptr_t
59 #define my_intptr_t long
64 #if HAVE_TDESTROY && !defined(_GNU_SOURCE)
66 #define HAVE_TDESTROY 0
70 #undef CUR /* use only the curses interface */
78 #define MaxSCALE 1000 /* input curses ranges 0..1000 */
79 #define MaxRGB 255 /* output color ranges 0..255 */
80 #define okCOLOR(n) ((n) >= 0 && (n) < COLORS)
81 #define okSCALE(n) ((n) >= 0 && (n) <= MaxSCALE)
82 #define Scaled256(n) (NCURSES_COLOR_T) (int)(((double)(n) * MaxSCALE) / 255)
83 #define ScaledColor(n) (NCURSES_COLOR_T) (int)(((double)(n) * MaxSCALE) / scale)
86 #define RGB_PATH "/etc/X11/rgb.txt"
102 #define MAX(a,b) ((a)>(b)?(a):(b))
105 * tfind will return null on failure, so we map subscripts starting at one.
107 #define P2I(n) (((int)(my_intptr_t)(n)) - 1)
108 #define I2P(n) (void *)(my_intptr_t)((n) + 1)
110 #define stop_curses() if (in_curses) endwin()
112 #define debugmsg if (debugging) logmsg
113 #define debugmsg2 if (debugging) logmsg2
115 static void cleanup(int) GCC_NORETURN;
116 static void giveup(const char *fmt,...) GCC_PRINTFLIKE(1, 2);
117 static void logmsg(const char *fmt,...) GCC_PRINTFLIKE(1, 2);
118 static void logmsg2(const char *fmt,...) GCC_PRINTFLIKE(1, 2);
119 static void warning(const char *fmt,...) GCC_PRINTFLIKE(1, 2);
120 static int gather_c_values(int);
122 static FILE *logfp = 0;
123 static double aspect_ratio = 0.6;
124 static bool in_curses = FALSE;
125 static bool debugging = FALSE;
126 static bool quiet = FALSE;
127 static int slow_time = -1;
128 static RGB_NAME *rgb_table;
129 static RGB_DATA *all_colors;
130 static HOW_MUCH how_much;
132 static int reading_last;
133 static int reading_size;
134 static FG_NODE *reading_ncols;
137 static void *reading_ntree;
140 #if HAVE_ALLOC_PAIR && HAVE_INIT_EXTENDED_COLOR
141 #define USE_EXTENDED_COLORS 1
142 static bool use_extended_pairs = FALSE;
143 static bool use_extended_colors = FALSE;
145 #define USE_EXTENDED_COLORS 0
149 logmsg(const char *fmt,...)
154 vfprintf(logfp, fmt, ap);
162 logmsg2(const char *fmt,...)
167 vfprintf(logfp, fmt, ap);
177 logmsg("Allocations:");
178 logmsg("%8ld file", (long) how_much.file);
179 logmsg("%8ld name", (long) how_much.name);
180 logmsg("%8ld list", (long) how_much.list);
181 logmsg("%8ld data", (long) how_much.data);
182 logmsg("%8ld head", (long) how_much.head);
183 logmsg("%8ld pair", (long) how_much.pair);
184 logmsg("%8ld cell", (long) how_much.cell);
185 logmsg("%8ld window", LINES * COLS * (long) sizeof(NCURSES_CH_T));
201 failed(const char *msg)
205 logmsg("failed with %s", strerror(save));
206 cleanup(EXIT_FAILURE);
210 warning(const char *fmt,...)
215 vfprintf(logfp, fmt, ap);
222 vfprintf(stderr, fmt, ap);
225 cleanup(EXIT_FAILURE);
230 free_data(char **data)
239 free_pics_head(PICS_HEAD * pics)
252 begin_c_values(int size)
256 reading_ncols = typeCalloc(FG_NODE, size + 1);
257 how_much.pair += (sizeof(FG_NODE) * (size_t) size);
258 /* black is always the first slot, to work around P2I/I2P logic */
264 compare_c_values(const void *p, const void *q)
266 const int a = P2I(p);
267 const int b = P2I(q);
268 return (reading_ncols[a].fgcol - reading_ncols[b].fgcol);
273 check_c_values(int ln)
278 for (n = 0; n < reading_last; ++n) {
279 ft = tfind(I2P(n), &reading_ntree, compare_c_values);
282 if (reading_ncols[q].fgcol != reading_ncols[n].fgcol) {
283 logmsg("@%d, %d:%d (%d) %d %d fgcol %06X %06X", ln, n,
287 reading_ncols[n].fgcol,
288 reading_ncols[q].fgcol);
291 logmsg("@%d, %d:%d (%d) ? %d null %06X", ln, n,
295 reading_ncols[n].fgcol);
302 #define check_c_values(n) /* nothing */
307 gather_c_values(int fg)
312 int next = reading_last;
314 reading_ncols[next].fgcol = fg;
315 reading_ncols[next].count = 0;
317 check_c_values(__LINE__);
318 if ((ft = tfind(I2P(next), &reading_ntree, compare_c_values)) != 0) {
321 if (reading_last + 2 >= reading_size) {
322 int more = ((MAX(reading_last, reading_size) + 2) * 3) / 2;
323 int last = reading_last + 1;
324 FG_NODE *p = typeRealloc(FG_NODE, more, reading_ncols);
330 memset(reading_ncols + last, 0,
331 sizeof(FG_NODE) * (size_t) (more - last));
332 check_c_values(__LINE__);
335 how_much.pair += sizeof(FG_NODE);
336 if ((ft = tsearch(I2P(next), &reading_ntree, compare_c_values)) != 0) {
339 logmsg("OOPS expected slot %d, got %d", next, found);
340 debugmsg("allocated color #%d as #%06X", next, fg);
341 check_c_values(__LINE__);
347 for (n = 0; n < reading_last; ++n) {
348 if (reading_ncols[n].fgcol == fg) {
354 if (reading_last + 2 >= reading_size) {
355 int more = ((reading_last + 2) * 3) / 2;
356 FG_NODE *p = typeRealloc(FG_NODE, more, reading_ncols);
360 how_much.pair -= (sizeof(FG_NODE) * (size_t) reading_size);
361 how_much.pair += (sizeof(FG_NODE) * (size_t) more);
364 memset(reading_ncols + reading_last, 0,
365 sizeof(FG_NODE) * (size_t) (more - reading_last));
367 reading_ncols[reading_last].fgcol = fg;
368 found = reading_last++;
376 finish_c_values(PICS_HEAD * head)
378 head->colors = reading_last;
379 head->fgcol = reading_ncols;
386 #if HAVE_TSEARCH && HAVE_TDESTROY
388 never_free(void *node GCC_UNUSED)
394 dispose_c_values(void)
397 if (reading_ntree != 0) {
399 tdestroy(reading_ntree, never_free);
402 for (n = 0; n < reading_last; ++n) {
403 tdelete(I2P(n), &reading_ntree, compare_c_values);
409 if (reading_ncols != 0) {
418 is_file(const char *filename, struct stat *sb)
421 if (stat(filename, sb) == 0
422 && (sb->st_mode & S_IFMT) == S_IFREG
423 && sb->st_size != 0) {
426 debugmsg("is_file(%s) %d", filename, result);
431 * Simplify reading xbm/xpm files by first making an array of lines. Blank
432 * lines are filtered out.
435 read_file(const char *filename)
442 printf("** %s\n", filename);
445 if (is_file(filename, &sb)) {
446 size_t size = (size_t) sb.st_size;
447 char *blob = typeCalloc(char, size + 1);
448 bool had_line = TRUE;
453 result = typeCalloc(char *, size + 1);
454 how_much.file += ((size + 1) * 2);
456 if (blob != 0 && result != 0) {
457 FILE *fp = fopen(filename, "r");
459 logmsg("opened %s", filename);
460 if (fread(blob, sizeof(char), size, fp) == size) {
461 for (j = 0; (size_t) j < size; ++j) {
462 if (blob[j] == '\0' ||
463 (UChar(blob[j]) < 32 &&
464 !isspace(UChar(blob[j]))) ||
465 (UChar(blob[j]) >= 128 && UChar(blob[j]) < 160)) {
468 if (blob[j] == '\n') {
471 debugmsg2("[%5d] %s\n", k, result[k - 1]);
474 } else if (had_line) {
476 result[k++] = blob + j;
481 debugmsg2("[%5d] %s\n", k, result[k - 1]);
486 logmsg("cannot open %s", filename);
490 debugmsg("...file is empty");
495 debugmsg("...file is non-text");
504 static const char *msg[] =
506 "Usage: picsmap [options] [imagefile [...]]"
507 ,"Read/display one or more xbm/xpm files (possibly use \"convert\")"
510 ," -a ratio aspect-ratio correction for ImageMagick"
511 #if HAVE_USE_DEFAULT_COLORS
512 ," -d invoke use_default_colors"
514 ," -L add debugging information to logfile"
515 ," -l logfile write informational messages to logfile"
516 ," -p palette color-palette file (default \"$TERM.dat\")"
518 ," -r rgb-path xpm uses X rgb color-names (default \"" RGB_PATH "\")"
519 ," -s SECS pause for SECS seconds after display vs getch"
520 #if USE_EXTENDED_COLORS
521 ," -x [pc] use extension (p=extended-pairs, c=extended-colors)"
522 ," Either/both extension may be given"
530 for (n = 0; n < SIZEOF(msg); n++)
531 fprintf(stderr, "%s\n", msg[n]);
532 cleanup(EXIT_FAILURE);
536 giveup(const char *fmt,...)
544 vfprintf(stderr, fmt, ap);
550 vfprintf(logfp, fmt, ap);
560 * Palette files are named for $TERM values. However, there are fewer palette
561 * files than $TERM's. Although there are known problems (some cannot even get
562 * black and white correct), for the purpose of comparison, pretending that
563 * those map into "xterm" is useful.
566 read_palette(const char *filename)
568 static const char *data_dir = DATA_DIR;
570 char *full_name = malloc(strlen(data_dir) + 20 + strlen(filename));
574 if (full_name != 0) {
576 for (tries = 0; tries < 8; ++tries) {
578 *(s = full_name) = '\0';
580 if (strchr(filename, '/') == 0) {
581 sprintf(full_name, "%s/", data_dir);
597 if (sscanf(t, "-%d%c", &num, &chr) == 2 &&
599 (tc = strchr(t, chr)) != 0 &&
600 !(strncmp) (tc, "color", 5)) {
607 if (found && (t != s)
608 && (strncmp) (s, "xterm", (size_t) (t - s))) {
609 sprintf(s, "xterm%s", filename + (t - s));
617 int len = (int) strlen(filename);
618 if (len <= 4 || strcmp(filename + len - 4, ".dat")) {
624 if (is_file(full_name, &sb))
629 result = read_file(full_name);
637 init_palette(const char *palette_file)
639 if (palette_file != 0) {
640 char **data = read_palette(palette_file);
642 all_colors = typeMalloc(RGB_DATA, (unsigned) COLORS);
643 how_much.data += (sizeof(RGB_DATA) * (unsigned) COLORS);
645 #if HAVE_COLOR_CONTENT
648 for (cp = 0; cp < COLORS; ++cp) {
649 color_content((short) cp,
651 &all_colors[cp].green,
652 &all_colors[cp].blue);
656 memset(all_colors, 0, sizeof(RGB_DATA) * (size_t) COLORS);
660 int red, green, blue;
661 int scale = MaxSCALE;
663 for (n = 0; data[n] != 0; ++n) {
664 if (sscanf(data[n], "scale:%d", &c) == 1) {
666 } else if (sscanf(data[n], "%d:%d %d %d",
676 all_colors[c].red = ScaledColor(red);
677 all_colors[c].green = ScaledColor(green);
678 all_colors[c].blue = ScaledColor(blue);
684 } else if (COLORS > 1) {
688 while (power2 < COLORS) {
693 if ((power2 != COLORS) || ((shift % 3) != 0)) {
694 if (all_colors == 0) {
695 init_palette(getenv("TERM"));
697 if (all_colors == 0) {
698 giveup("With %d colors, you need a palette-file", COLORS);
705 * Map the 24-bit RGB value to a color index if using a palette, otherwise to a
706 * direct color value.
717 int red = (value & 0xff0000) >> 16;
718 int green = (value & 0x00ff00) >> 8;
719 int blue = (value & 0x0000ff) >> 0;
721 if (all_colors != 0) {
722 #define Diff2(n,m) ((m) - all_colors[n].m) * ((m) - all_colors[n].m)
723 #define Diff2S(n) Diff2(n,red) + Diff2(n,green) + Diff2(n,blue)
728 red = Scaled256(red);
729 green = Scaled256(green);
730 blue = Scaled256(blue);
732 for (result = 0, n = 1; n < COLORS; ++n) {
733 int d = Diff2(n, red) + Diff2(n, green) + Diff2(n, blue);
739 } else { /* direct color */
743 while (power2 < COLORS) {
753 result = ((red << (2 * (8 - shifts)))
754 + (green << (8 - shifts))
772 static int match_c(const char *, const char *,...) GCC_SCANFLIKE(2,3);
777 while (isspace(UChar(*s)))
783 skip_cs(const char *s)
785 while (isspace(UChar(*s)))
794 while (isgraph(UChar(*s)))
800 match_c(const char *source, const char *pattern,...)
802 int limit = (int) strlen(source);
803 const char *last_s = source + limit;
810 va_start(ap, pattern);
813 while (*pattern != '\0') {
814 ch = UChar(*pattern++);
815 /* blank in the pattern matches zero-or-more blanks in source */
817 source = skip_cs(source);
820 /* %c, %d, %s are like sscanf except for special treatment of blanks */
821 if (ch == '%' && *pattern != '\0' && strchr("cdnsx", *pattern)) {
826 cp = va_arg(ap, char *);
829 } while (--limit > 0);
834 ip = va_arg(ap, int *);
835 lv = strtol(source, &cp, ch == 'd' ? 10 : 16);
836 if (cp != 0 && cp != source) {
844 /* not really sscanf... */
845 limit = *va_arg(ap, int *);
849 cp = va_arg(ap, char *);
850 while (*source != '\0') {
854 } else if (found && (ch == *skip_cs(pattern))) {
866 /* other characters are matched literally */
867 if (*source++ != ch) {
876 return (*source || *pattern) ? 0 : 1;
880 match_colors(const char *source, int cpp, char *arg1, char *arg2, char *arg3)
884 /* most files use a quasi-fixed format */
885 if (match_c(source, " \"%n%c %s %s \" , ", &cpp, arg1, arg2, arg3)) {
890 const char *s = skip_cs(source);
891 size_t have = strlen(source);
893 if (*s++ == '"' && have > ((size_t) cpp + 2)) {
894 memcpy(arg1, s, (size_t) cpp);
896 while (*s++ == '\t') {
897 for (t = arg2; (*s != '\0') && strchr("\t\"", *s) == 0;) {
905 for (t = arg3; (*s != '\0') && strchr("\t\"", *s) == 0;) {
909 if (!strcmp(arg2, "c")) {
920 parse_rgb(char **data)
924 unsigned long r, g, b;
928 RGB_NAME *result = 0;
930 for (need = 0; data[need] != 0; ++need) ;
932 result = typeCalloc(RGB_NAME, need + 2);
933 how_much.name += (sizeof(RGB_NAME) * (need + 2));
935 for (n = 0; data[n] != 0; ++n) {
936 if (strlen(t = data[n]) >= sizeof(buf) - 1)
938 if (*(s = skip_s(t)) == '!')
941 r = strtoul(s, &t, 10);
943 g = strtoul(s, &t, 10);
945 b = strtoul(s, &t, 10);
948 result[item].name = s;
950 while (t-- != s && isspace(UChar(*t))) {
953 result[item].value = (int) ((r & 0xff) << 16 |
959 result[item].name = "none";
960 result[item].value = -1;
966 lookup_rgb(const char *name)
968 RGB_NAME *result = 0;
969 if (rgb_table != 0) {
971 for (n = 0; rgb_table[n].name != 0; ++n) {
972 if (!strcasecmp(name, rgb_table[n].name)) {
973 result = &rgb_table[n];
982 parse_xbm(char **data)
995 debugmsg("called parse_xbm");
997 result = typeCalloc(PICS_HEAD, 1);
998 how_much.head += sizeof(PICS_HEAD);
1002 gather_c_values(0xffffff);
1004 for (n = 0; data[n] != 0; ++n) {
1005 if (strlen(s = data[n]) >= sizeof(buf) - 1)
1011 if (sscanf(s, "#define %s %d%c", buf, &num, &ch) >= 2) {
1012 if ((t = strstr(buf, "_width")) != 0) {
1014 result->wide = (short) bytes_of(num);
1015 } else if ((t = strstr(buf, "_height")) != 0) {
1017 result->high = (short) num;
1023 if (strcmp(result->name, buf)) {
1027 result->name = strdup(buf);
1032 if (sscanf(s, "static char %[^_ ]_bits[]%c", buf, &ch) >= 1) {
1033 if (strcmp(result->name, buf)) {
1037 cells = (size_t) (result->wide * result->high);
1039 result->cells = typeCalloc(PICS_CELL, cells);
1040 how_much.cell += (sizeof(PICS_CELL) * cells);
1042 if ((s = strchr(s, L_CURLY)) == 0)
1049 while (*s != '\0') {
1050 while (isspace(UChar(*s))) {
1053 if (isdigit(UChar(*s))) {
1054 long value = strtol(s, &t, 0);
1056 if (t != s || value > MaxRGB || value < 0) {
1062 for (b = 0; b < 8; ++b) {
1063 if (((1L << b) & value) != 0) {
1064 result->cells[which].ch = '*';
1065 result->cells[which].fg = 1;
1066 reading_ncols[1].count++;
1068 result->cells[which].ch = ' ';
1069 result->cells[which].fg = 0;
1070 reading_ncols[0].count++;
1072 if (++which > cells) {
1078 if (*s == R_CURLY) {
1081 } else if (*s == ',') {
1092 debugmsg("...state was only %d", state);
1094 result = free_pics_head(result);
1097 finish_c_values(result);
1103 parse_xpm(char **data)
1110 int cpp = 1; /* chars per pixel */
1124 debugmsg("called parse_xpm");
1126 result = typeCalloc(PICS_HEAD, 1);
1127 how_much.head += sizeof(PICS_HEAD);
1129 for (n = 0; data[n] != 0; ++n) {
1130 if (strlen(s = data[n]) >= sizeof(buf) - 1)
1134 if (match_c(s, " /* XPM */ ")) {
1139 if (match_c(s, " static char * %s [] = %c ", arg1, &ch) &&
1141 result->name = strdup(arg1);
1146 if (match_c(s, " \" %d %d %d %d \" , ",
1147 num + 0, num + 1, num + 2, num + 3) ||
1148 match_c(s, " \" %d %d %d %d %d %d \" , ",
1149 num + 0, num + 1, num + 2, num + 3, num + 4, num + 5)) {
1150 result->wide = (short) num[0];
1151 result->high = (short) num[1];
1152 result->colors = num[2];
1154 begin_c_values(num[2]);
1156 cells = (result->wide * result->high);
1158 result->cells = typeCalloc(PICS_CELL, cells);
1159 how_much.cell += sizeof(PICS_CELL) * (size_t) cells;
1161 list = typeCalloc(char *, result->colors + 1);
1162 how_much.list += sizeof(char *) * (size_t) (result->colors + 1);
1169 if (!match_colors(s, cpp, arg1, arg2, arg3)) {
1173 free(list[reading_last]);
1174 list[reading_last] = strdup(arg1);
1175 if ((by_name = lookup_rgb(arg3)) != 0) {
1176 found = gather_c_values(by_name->value);
1177 } else if (*arg3 == '#') {
1178 char *rgb = arg3 + 1;
1179 unsigned long value = strtoul(rgb, &s, 16);
1180 switch ((int) strlen(rgb)) {
1184 value = (((value >> 24) & 0xff0000L)
1185 | ((value >> 16) & 0xff00L)
1186 | ((value >> 8) & 0xffL));
1189 warning("unexpected rgb value %s", rgb);
1192 found = gather_c_values((int) value);
1194 found = gather_c_values(0); /* actually an error */
1196 debugmsg(" [%d:%d] %06X", num_colors, result->colors,
1197 reading_ncols[(found >= 0) ? found : 0].fgcol);
1198 if (num_colors >= result->colors) {
1199 finish_c_values(result);
1202 list[0] = strdup("\033");
1206 if (*(cs = skip_cs(s)) == '"') {
1208 while (*cs != '\0' && *cs != '"') {
1211 /* FIXME - factor out */
1212 for (c = 0; c < result->colors; ++c) {
1214 /* should not happen... */
1217 if (!(strncmp) (cs, list[c], (size_t) cpp)) {
1218 result->cells[which].ch = list[c][0];
1219 result->cells[which].fg = c;
1220 result->fgcol[c].count++;
1225 if (result->cells[which].ch == 0) {
1226 result->cells[which].ch = '?';
1227 result->cells[which].fg = 0;
1230 if (++which >= cells) {
1234 for (c = cpp; c > 0; --c, ++cs) {
1244 if (result && list) {
1245 for (n = 0; n < result->colors; ++n)
1251 debugmsg("...state was only %d", state);
1252 result = free_pics_head(result);
1256 debugmsg("...allocated %d colors", result->colors);
1263 * The obscurely-named "convert" is provided by ImageMagick
1266 parse_img(const char *filename)
1268 char *cmd = malloc(strlen(filename) + 256);
1270 char buffer[BUFSIZ];
1276 int width = in_curses ? COLS : 80;
1278 sprintf(cmd, "identify \"%s\"", filename);
1280 strcat(cmd, " 2>/dev/null");
1282 logmsg("...opening pipe to %s", cmd);
1284 result = typeCalloc(PICS_HEAD, 1);
1285 how_much.head += sizeof(PICS_HEAD);
1287 if ((pp = popen(cmd, "r")) != 0) {
1288 if (fgets(buffer, sizeof(buffer), pp) != 0) {
1289 size_t n = strlen(filename);
1290 debugmsg2("...read %s", buffer);
1291 if (strlen(buffer) > n &&
1292 !(strncmp) (buffer, filename, n) &&
1293 isspace(UChar(buffer[n])) &&
1294 sscanf(skip_word(buffer + n), " %dx%d ", &pic_x, &pic_y) == 2) {
1295 /* distort image to make it show normally on terminal */
1296 pic_x = (int) ((double) pic_x / aspect_ratio);
1303 if (pic_x <= 0 || pic_y <= 0)
1306 sprintf(cmd, "convert " "-resize %dx%d\\! " "-thumbnail %dx \"%s\" "
1307 "-define txt:compliance=SVG txt:-",
1308 pic_x, pic_y, width, filename);
1310 strcat(cmd, " 2>/dev/null");
1312 logmsg("...opening pipe to %s", cmd);
1313 if ((pp = popen(cmd, "r")) != 0) {
1318 while (fgets(buffer, sizeof(buffer), pp) != 0) {
1319 debugmsg2("[%5d] %s", count + 1, buffer);
1320 if (strlen(buffer) > 160) { /* 80 columns would be enough */
1326 "# ImageMagick pixel enumeration: %d,%d,%d,%s ",
1327 &col, &row, &len, dummy)) {
1328 result->name = strdup(filename);
1329 result->wide = (short) col;
1330 result->high = (short) row;
1332 begin_c_values(256);
1334 result->cells = typeCalloc(PICS_CELL, (size_t) (col * row));
1335 how_much.cell += (sizeof(PICS_CELL) * (size_t) (col * row));
1341 /* subsequent lines begin "col,row: (r,g,b,a) #RGB" */
1342 int r, g, b, nocolor;
1346 char *s = t = strchr(buffer, '#');
1348 /* after the "#RGB", there are differences - just ignore */
1349 while (*s != '\0' && !isspace(UChar(*s)))
1354 "%d,%d: (%d,%d,%d,%d) #%x ",
1356 &r, &g, &b, &nocolor,
1358 if ((s - t) > 8) /* 6 hex digits vs 8 */
1363 check != (unsigned) ((r << 16) | (g << 8) | b)) {
1367 c = gather_c_values((int) check);
1368 which = col + (row * result->wide);
1369 result->cells[which].ch = ((in_curses ||
1373 if (c >= 0 && c < reading_last) {
1374 result->cells[which].fg = c;
1375 reading_ncols[c].count++;
1377 result->cells[which].fg = -1;
1385 finish_c_values(result);
1388 /* FIXME - is this trimming needed? */
1389 for (len = result->colors; len > 3; len--) {
1390 if (result->fgcol[len - 1].fgcol == 0) {
1391 result->colors = len - 1;
1402 result = free_pics_head(result);
1409 read_picture(const char *filename, char **data)
1412 if ((pics = parse_xbm(data)) == 0) {
1414 if ((pics = parse_xpm(data)) == 0) {
1416 if ((pics = parse_img(filename)) == 0) {
1419 warning("unexpected file-format for \"%s\"", filename);
1420 } else if (pics->high == 0 || pics->wide == 0) {
1423 pics = free_pics_head(pics);
1424 warning("no picture found in \"%s\"", filename);
1431 #define fg_color(pics,n) (pics->fgcol[n].fgcol)
1434 dump_picture(PICS_HEAD * pics)
1438 printf("Name %s\n", pics->name);
1439 printf("Size %dx%d\n", pics->high, pics->wide);
1441 for (y = 0; y < pics->colors; ++y) {
1442 if (fg_color(pics, y) < 0) {
1443 printf(" %3d: %d\n", y, fg_color(pics, y));
1445 printf(" %3d: #%06x\n", y, fg_color(pics, y));
1448 for (y = 0; y < pics->high; ++y) {
1449 for (x = 0; x < pics->wide; ++x) {
1450 putchar(pics->cells[y * pics->wide + x].ch);
1456 #ifndef USE_DISPLAY_DRIVER
1458 init_display(const char *palette_path, int opt_d)
1460 if (isatty(fileno(stdout))) {
1468 #if HAVE_USE_DEFAULT_COLORS
1470 use_default_colors();
1472 init_palette(palette_path);
1474 scrollok(stdscr, FALSE);
1480 show_picture(PICS_HEAD * pics)
1484 int my_pair, my_color;
1486 debugmsg("called show_picture");
1487 logmsg("...using %dx%d screen", LINES, COLS);
1488 #if HAVE_RESET_COLOR_PAIRS
1489 reset_color_pairs();
1495 logmsg("...using %d colors", pics->colors);
1496 for (n = 0; n < pics->colors; ++n) {
1498 my_color = map_color(fg_color(pics, n));
1499 #if USE_EXTENDED_COLORS
1500 if (use_extended_pairs) {
1501 init_extended_pair(my_pair, my_color, my_color);
1507 init_pair((short) my_pair, (short) my_color, (short) my_color);
1510 attrset(COLOR_PAIR(1));
1513 for (y = 0; y < pics->high; ++y) {
1517 for (x = 0; x < pics->wide; ++x) {
1520 n = (y * pics->wide + x);
1521 my_pair = pics->cells[n].fg + 1;
1522 #if USE_EXTENDED_COLORS
1523 if (use_extended_pairs) {
1526 wch[0] = (wchar_t) pics->cells[n].ch;
1528 setcchar(&temp, wch, A_NORMAL, (short) my_pair, &my_pair);
1533 attrset(COLOR_PAIR(my_pair));
1534 addch((chtype) pics->cells[n].ch);
1538 if (slow_time >= 0) {
1540 if (slow_time > 0) {
1541 #ifdef NCURSES_VERSION
1542 napms(1000 * slow_time);
1544 sleep((unsigned) slow_time);
1548 wmove(stdscr, 0, 0);
1557 compare_fg_counts(const void *a, const void *b)
1559 const FG_NODE *p = (const FG_NODE *) a;
1560 const FG_NODE *q = (const FG_NODE *) b;
1561 return (q->count - p->count);
1565 report_colors(PICS_HEAD * pics)
1579 qsort(pics->fgcol, (size_t) pics->colors, sizeof(FG_NODE), compare_fg_counts);
1581 * For debugging, show a (short) list of the colors used.
1583 if (debugging && (pics->colors < 1000)) {
1585 for (j = pics->colors; j != 0; j /= 10) {
1592 logmsg("These colors were used:");
1593 high = (pics->colors + wide - 1) / wide;
1594 for (j = 0; j < high && j < pics->colors; ++j) {
1597 for (k = 0; k < wide; ++k) {
1598 int n = j + (k * high);
1599 if (n >= pics->colors)
1604 sprintf(s, "%*s", 8 - digits, " ");
1608 if (pics->fgcol[n].fgcol >= 0) {
1609 sprintf(s, "%3d #%06X %*d", n,
1610 pics->fgcol[n].fgcol,
1611 digits, pics->fgcol[n].count);
1613 sprintf(s, "%3d (empty) %*d", n,
1614 digits, pics->fgcol[n].count);
1617 if ((s - buffer) > 100)
1620 logmsg("%s", buffer);
1625 * Given the list of colors sorted by the number of times they are used,
1626 * log a short report showing the number of colors for 90%, 99%, 99.9%,
1629 logmsg("Number of colors versus number of cells");
1630 total = pics->high * pics->wide;
1634 for (j = 0; j < pics->colors; ++j) {
1635 accum += pics->fgcol[j].count;
1636 if (accum >= (total * (1.0 - level))) {
1637 int after = (shift > 2) ? shift - 2 : 0;
1638 logmsg("%8d colors (%.1f%%) in %d cells (%.*f%%)",
1640 (100.0 * (j + 1)) / pics->colors,
1642 after, (100.0 * accum) / total);
1652 main(int argc, char *argv[])
1657 const char *palette_path = 0;
1658 const char *rgb_path = RGB_PATH;
1660 while ((n = getopt(argc, argv, "a:dLl:p:qr:s:x:")) != -1) {
1663 if (sscanf(optarg, "%lf%c", &aspect_ratio, &ignore_ch) != 1
1664 || aspect_ratio < 0.1
1665 || aspect_ratio > 10.) {
1666 fprintf(stderr, "Expected a number in [0.1 to 10.]: %s\n", optarg);
1670 #if HAVE_USE_DEFAULT_COLORS
1679 if ((logfp = fopen(optarg, "a")) == 0)
1683 palette_path = optarg;
1692 slow_time = atoi(optarg);
1694 #if USE_EXTENDED_COLORS
1701 use_extended_pairs = TRUE;
1704 use_extended_colors = TRUE;
1720 if (optind < argc) {
1721 char **rgb_data = read_file(rgb_path);
1724 rgb_table = parse_rgb(rgb_data);
1726 init_display(palette_path, opt_d);
1728 giveup("expected at least one image filename");
1730 for (n = optind; n < argc; ++n) {
1732 char **data = read_file(argv[n]);
1735 warning("cannot read \"%s\"", argv[n]);
1738 if ((pics = read_picture(argv[n], data)) != 0) {
1744 report_colors(pics);
1747 free_pics_head(pics);
1750 free_data(rgb_data);
1757 cleanup(EXIT_SUCCESS);