libncurses: Import https://ftp.gnu.org/pub/gnu/ncurses/ncurses-6.5.tar.gz changes
Change-Id: I3433d30ca01359fd2e3623ede96b531f0b39cbfa
Signed-off-by: micky387 <mickaelsaibi@free.fr>
diff --git a/test/picsmap.c b/test/picsmap.c
new file mode 100644
index 0000000..b582f3a
--- /dev/null
+++ b/test/picsmap.c
@@ -0,0 +1,1835 @@
+/****************************************************************************
+ * Copyright 2018-2022,2023 Thomas E. Dickey *
+ * Copyright 2017,2018 Free Software Foundation, Inc. *
+ * *
+ * Permission is hereby granted, free of charge, to any person obtaining a *
+ * copy of this software and associated documentation files (the *
+ * "Software"), to deal in the Software without restriction, including *
+ * without limitation the rights to use, copy, modify, merge, publish, *
+ * distribute, distribute with modifications, sublicense, and/or sell *
+ * copies of the Software, and to permit persons to whom the Software is *
+ * furnished to do so, subject to the following conditions: *
+ * *
+ * The above copyright notice and this permission notice shall be included *
+ * in all copies or substantial portions of the Software. *
+ * *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
+ * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
+ * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
+ * *
+ * Except as contained in this notice, the name(s) of the above copyright *
+ * holders shall not be used in advertising or otherwise to promote the *
+ * sale, use or other dealings in this Software without prior written *
+ * authorization. *
+ ****************************************************************************/
+/*
+ * $Id: picsmap.c,v 1.149 2023/04/23 23:20:37 tom Exp $
+ *
+ * Author: Thomas E. Dickey
+ *
+ * A little more interesting than "dots", read a simple image into memory and
+ * measure the time taken to paint it normally vs randomly.
+ *
+ * TODO improve use of rgb-names using tsearch.
+ *
+ * TODO add option to dump picture in non-optimized mode, e.g., like tput.
+ * TODO write cells/second to stderr (or log)
+ * TODO write picture left-to-right/top-to-bottom
+ * TODO write picture randomly
+ * TODO add one-shot option vs repeat-count before exiting
+ * TODO add option "-xc" for init_color vs init_extended_color
+ * TODO add option "-xa" for init_pair vs alloc_pair
+ * TODO use pad to allow pictures larger than screen
+ * TODO add option to just use convert (which can scale) vs builtin xbm/xpm.
+ * TODO add scr_dump and scr_restore calls
+ * TODO add option for assume_default_colors
+ */
+#include <test.priv.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#if HAVE_TSEARCH
+#include <search.h>
+#endif
+
+#undef CUR /* use only the curses interface */
+
+#define L_BLOCK '['
+#define R_BLOCK ']'
+
+#define L_CURLY '{'
+#define R_CURLY '}'
+
+#define MaxSCALE 1000 /* input curses ranges 0..1000 */
+#define MaxRGB 255 /* output color ranges 0..255 */
+#define okCOLOR(n) ((n) >= 0 && (n) < COLORS)
+#define okSCALE(n) ((n) >= 0 && (n) <= MaxSCALE)
+#define Scaled256(n) (NCURSES_COLOR_T) (int)(((double)(n) * MaxSCALE) / 255)
+#define ScaledColor(n) (NCURSES_COLOR_T) (int)(((double)(n) * MaxSCALE) / scale)
+
+#ifndef RGB_PATH
+#define RGB_PATH "/etc/X11/rgb.txt"
+#endif
+
+#include <picsmap.h>
+
+typedef struct {
+ size_t file;
+ size_t name;
+ size_t list;
+ size_t data;
+ size_t head;
+ size_t pair;
+ size_t cell;
+} HOW_MUCH;
+
+#undef MAX
+#define MAX(a,b) ((a)>(b)?(a):(b))
+
+/*
+ * tfind will return null on failure, so we map subscripts starting at one.
+ */
+#define P2I(n) (((int)(my_intptr_t)(n)) - 1)
+#define I2P(n) (void *)(my_intptr_t)((n) + 1)
+
+#define pause_curses() if (in_curses) stop_curses()
+
+#define debugmsg if (debugging) logmsg
+#define debugmsg2 if (debugging) logmsg2
+
+static GCC_NORETURN void cleanup(int);
+static void giveup(const char *fmt, ...) GCC_PRINTFLIKE(1, 2);
+static void logmsg(const char *fmt, ...) GCC_PRINTFLIKE(1, 2);
+static void logmsg2(const char *fmt, ...) GCC_PRINTFLIKE(1, 2);
+static void warning(const char *fmt, ...) GCC_PRINTFLIKE(1, 2);
+static int gather_c_values(int);
+
+static FILE *logfp = 0;
+static double aspect_ratio = 0.6;
+static bool in_curses = FALSE;
+static bool debugging = FALSE;
+static bool quiet = FALSE;
+static int slow_time = -1;
+static RGB_NAME *rgb_table;
+static RGB_DATA *all_colors;
+static HOW_MUCH how_much;
+
+static int reading_last;
+static int reading_size;
+static FG_NODE *reading_ncols;
+
+#if HAVE_TSEARCH
+static void *reading_ntree;
+#endif
+
+#if HAVE_ALLOC_PAIR && USE_EXTENDED_COLOR
+#define USE_EXTENDED_COLORS 1
+static bool use_extended_pairs = FALSE;
+static bool use_extended_colors = FALSE;
+#else
+#define USE_EXTENDED_COLORS 0
+#endif
+
+static void
+logmsg(const char *fmt, ...)
+{
+ if (logfp != 0) {
+ va_list ap;
+ va_start(ap, fmt);
+ vfprintf(logfp, fmt, ap);
+ va_end(ap);
+ fputc('\n', logfp);
+ fflush(logfp);
+ }
+}
+
+static void
+logmsg2(const char *fmt, ...)
+{
+ if (logfp != 0) {
+ va_list ap;
+ va_start(ap, fmt);
+ vfprintf(logfp, fmt, ap);
+ va_end(ap);
+ fflush(logfp);
+ }
+}
+
+static void
+close_log(void)
+{
+ if (logfp != 0) {
+ logmsg("Allocations:");
+ logmsg("%8ld file", (long) how_much.file);
+ logmsg("%8ld name", (long) how_much.name);
+ logmsg("%8ld list", (long) how_much.list);
+ logmsg("%8ld data", (long) how_much.data);
+ logmsg("%8ld head", (long) how_much.head);
+ logmsg("%8ld pair", (long) how_much.pair);
+ logmsg("%8ld cell", (long) how_much.cell);
+ logmsg("%8ld window", LINES * COLS * (long) sizeof(NCURSES_CH_T));
+ fclose(logfp);
+ logfp = 0;
+ }
+}
+
+static void
+cleanup(int code)
+{
+ pause_curses();
+ close_log();
+ ExitProgram(code);
+ /* NOTREACHED */
+}
+
+static void
+failed(const char *msg)
+{
+ int save = errno;
+ perror(msg);
+ logmsg("failed with %s", strerror(save));
+ cleanup(EXIT_FAILURE);
+}
+
+static void
+warning(const char *fmt, ...)
+{
+ if (logfp != 0) {
+ va_list ap;
+ va_start(ap, fmt);
+ vfprintf(logfp, fmt, ap);
+ va_end(ap);
+ fputc('\n', logfp);
+ fflush(logfp);
+ } else {
+ va_list ap;
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ va_end(ap);
+ fputc('\n', stderr);
+ cleanup(EXIT_FAILURE);
+ }
+}
+
+static void
+free_data(char **data)
+{
+ if (data != 0) {
+ free(data[0]);
+ free(data);
+ }
+}
+
+static PICS_HEAD *
+free_pics_head(PICS_HEAD * pics)
+{
+ if (pics != 0) {
+ free(pics->fgcol);
+ free(pics->cells);
+ free(pics->name);
+ free(pics);
+ pics = 0;
+ }
+ return pics;
+}
+
+static void
+begin_c_values(int size)
+{
+ reading_last = 0;
+ reading_size = size;
+ reading_ncols = typeCalloc(FG_NODE, size + 1);
+ how_much.pair += (sizeof(FG_NODE) * (size_t) size);
+ /* black is always the first slot, to work around P2I/I2P logic */
+ gather_c_values(0);
+}
+
+#if HAVE_TSEARCH
+static int
+compare_c_values(const void *p, const void *q)
+{
+ const int a = P2I(p);
+ const int b = P2I(q);
+ return (reading_ncols[a].fgcol - reading_ncols[b].fgcol);
+}
+
+#ifdef DEBUG_TSEARCH
+static void
+check_c_values(int ln)
+{
+ static int oops = 5;
+ FG_NODE **ft;
+ int n;
+ for (n = 0; n < reading_last; ++n) {
+ ft = tfind(I2P(n), &reading_ntree, compare_c_values);
+ if (ft != 0) {
+ int q = P2I(*ft);
+ if (reading_ncols[q].fgcol != reading_ncols[n].fgcol) {
+ logmsg("@%d, %d:%d (%d) %d %d fgcol %06X %06X", ln, n,
+ reading_last - 1,
+ reading_size,
+ q, n,
+ reading_ncols[n].fgcol,
+ reading_ncols[q].fgcol);
+ }
+ } else {
+ logmsg("@%d, %d:%d (%d) ? %d null %06X", ln, n,
+ reading_last - 1,
+ reading_size,
+ n,
+ reading_ncols[n].fgcol);
+ if (oops-- <= 0)
+ return;
+ }
+ }
+}
+#else
+#define check_c_values(n) /* nothing */
+#endif
+#endif
+
+static int
+gather_c_values(int fg)
+{
+ int found = -1;
+#if HAVE_TSEARCH
+ FG_NODE **ft;
+ int next = reading_last;
+
+ reading_ncols[next].fgcol = fg;
+ reading_ncols[next].count = 0;
+
+ check_c_values(__LINE__);
+ if ((ft = tfind(I2P(next), &reading_ntree, compare_c_values)) != 0) {
+ found = P2I(*ft);
+ } else {
+ if (reading_last + 2 >= reading_size) {
+ int more = ((MAX(reading_last, reading_size) + 2) * 3) / 2;
+ int last = reading_last + 1;
+ FG_NODE *p = typeRealloc(FG_NODE, more, reading_ncols);
+ if (p == 0)
+ goto done;
+
+ reading_size = more;
+ reading_ncols = p;
+ memset(reading_ncols + last, 0,
+ sizeof(FG_NODE) * (size_t) (more - last));
+ check_c_values(__LINE__);
+ }
+ ++reading_last;
+ how_much.pair += sizeof(FG_NODE);
+ if ((ft = tsearch(I2P(next), &reading_ntree, compare_c_values)) != 0) {
+ found = P2I(*ft);
+ if (found != next)
+ logmsg("OOPS expected slot %d, got %d", next, found);
+ debugmsg("allocated color #%d as #%06X", next, fg);
+ check_c_values(__LINE__);
+ }
+ }
+#else
+ int n;
+
+ for (n = 0; n < reading_last; ++n) {
+ if (reading_ncols[n].fgcol == fg) {
+ found = n;
+ break;
+ }
+ }
+ if (found < 0) {
+ if (reading_last + 2 >= reading_size) {
+ int more = ((reading_last + 2) * 3) / 2;
+ FG_NODE *p = typeRealloc(FG_NODE, more, reading_ncols);
+ if (p == 0)
+ goto done;
+
+ how_much.pair -= (sizeof(FG_NODE) * (size_t) reading_size);
+ how_much.pair += (sizeof(FG_NODE) * (size_t) more);
+ reading_size = more;
+ reading_ncols = p;
+ memset(reading_ncols + reading_last, 0,
+ sizeof(FG_NODE) * (size_t) (more - reading_last));
+ }
+ reading_ncols[reading_last].fgcol = fg;
+ found = reading_last++;
+ }
+#endif
+ done:
+ return found;
+}
+
+static void
+finish_c_values(PICS_HEAD * head)
+{
+ head->colors = reading_last;
+ head->fgcol = reading_ncols;
+
+ reading_last = 0;
+ reading_size = 0;
+ reading_ncols = 0;
+}
+
+static void
+dispose_c_values(void)
+{
+#if HAVE_TSEARCH
+ if (reading_ntree != 0) {
+ int n;
+ for (n = 0; n < reading_last; ++n) {
+ tdelete(I2P(n), &reading_ntree, compare_c_values);
+ }
+ reading_ntree = 0;
+ }
+#endif
+ if (reading_ncols != 0) {
+ free(reading_ncols);
+ reading_ncols = 0;
+ }
+ reading_last = 0;
+ reading_size = 0;
+}
+
+static int
+is_file(const char *filename, struct stat *sb)
+{
+ int result = 0;
+ if (stat(filename, sb) == 0
+ && (sb->st_mode & S_IFMT) == S_IFREG
+ && sb->st_size != 0) {
+ result = 1;
+ }
+ debugmsg("is_file(%s) %d", filename, result);
+ return result;
+}
+
+/*
+ * Simplify reading xbm/xpm files by first making an array of lines. Blank
+ * lines are filtered out.
+ */
+static char **
+read_file(const char *filename)
+{
+ char **result = 0;
+ struct stat sb;
+
+ if (!quiet) {
+ pause_curses();
+ printf("** %s\n", filename);
+ }
+
+ if (is_file(filename, &sb)) {
+ size_t size = (size_t) sb.st_size;
+ char *blob = typeCalloc(char, size + 1);
+ bool binary = FALSE;
+ unsigned k = 0;
+
+ result = typeCalloc(char *, size + 1);
+ how_much.file += ((size + 1) * 2);
+
+ if (blob != 0 && result != 0) {
+ FILE *fp = fopen(filename, "r");
+ if (fp != 0) {
+ logmsg("opened %s", filename);
+
+ if (fread(blob, sizeof(char), size, fp) == size) {
+ bool had_line = TRUE;
+ unsigned j;
+
+ for (j = 0; (size_t) j < size; ++j) {
+ if (blob[j] == '\0' ||
+ (UChar(blob[j]) < 32 &&
+ !isspace(UChar(blob[j]))) ||
+ (UChar(blob[j]) >= 128 && UChar(blob[j]) < 160)) {
+ binary = TRUE;
+ }
+ if (blob[j] == '\n') {
+ blob[j] = '\0';
+ if (k && !binary) {
+ debugmsg2("[%5d] %s\n", k, result[k - 1]);
+ }
+ had_line = TRUE;
+ } else if (had_line) {
+ had_line = FALSE;
+ result[k++] = blob + j;
+ }
+ }
+ result[k] = 0;
+ if (k && !binary) {
+ debugmsg2("[%5d] %s\n", k, result[k - 1]);
+ }
+ }
+ fclose(fp);
+ } else {
+ logmsg("cannot open %s", filename);
+ }
+ }
+ if (k == 0) {
+ debugmsg("...file is empty");
+ free(blob);
+ free(result);
+ result = 0;
+ } else if (binary) {
+ debugmsg("...file is non-text");
+ }
+ }
+ return result;
+}
+
+static void
+usage(int ok)
+{
+ static const char *msg[] =
+ {
+ "Usage: picsmap [options] [imagefile [...]]"
+ ,"Read/display one or more xbm/xpm files (possibly use \"convert\")"
+ ,""
+ ,USAGE_COMMON
+ ,"Options:"
+ ," -a ratio aspect-ratio correction for ImageMagick"
+#if HAVE_USE_DEFAULT_COLORS
+ ," -d invoke use_default_colors"
+#endif
+ ," -L add debugging information to logfile"
+ ," -l FILE write informational messages to FILE"
+ ," -p FILE color-palette file (default \"$TERM.dat\")"
+ ," -q less verbose"
+ ," -r FILE xpm uses X rgb color-names in FILE (default \"" RGB_PATH "\")"
+ ," -s SECS pause for SECS seconds after display vs getch"
+#if USE_EXTENDED_COLORS
+ ," -x [pc] use extension (p=extended-pairs, c=extended-colors)"
+ ," Either/both extension may be given"
+#endif
+ };
+ size_t n;
+
+ pause_curses();
+
+ fflush(stdout);
+ for (n = 0; n < SIZEOF(msg); n++)
+ fprintf(stderr, "%s\n", msg[n]);
+ cleanup(ok ? EXIT_SUCCESS : EXIT_FAILURE);
+}
+
+static void
+giveup(const char *fmt, ...)
+{
+ va_list ap;
+
+ pause_curses();
+ fflush(stdout);
+
+ va_start(ap, fmt);
+ vfprintf(stderr, fmt, ap);
+ fputc('\n', stderr);
+ va_end(ap);
+
+ if (logfp) {
+ va_start(ap, fmt);
+ vfprintf(logfp, fmt, ap);
+ fputc('\n', logfp);
+ va_end(ap);
+ fflush(logfp);
+ }
+
+ usage(FALSE);
+}
+
+/*
+ * Palette files are named for $TERM values. However, there are fewer palette
+ * files than $TERM's. Although there are known problems (some cannot even get
+ * black and white correct), for the purpose of comparison, pretending that
+ * those map into "xterm" is useful.
+ */
+static char **
+read_palette(const char *filename)
+{
+ static const char *data_dir = DATA_DIR;
+ char **result = 0;
+ size_t last = strlen(filename);
+ size_t need = (strlen(data_dir) + 20 + last);
+ char *full_name = malloc(need);
+ char *s;
+ struct stat sb;
+
+ if (full_name != 0) {
+ int tries;
+ for (tries = 0; tries < 8; ++tries) {
+
+ *(s = full_name) = '\0';
+ if (tries & 1) {
+ if (strchr(filename, '/') == 0) {
+ _nc_SPRINTF(full_name, _nc_SLIMIT(need) "%s/", data_dir);
+ } else {
+ continue;
+ }
+ }
+ s += strlen(s);
+ if (((size_t) (s - full_name) + last + 1) >= need)
+ continue;
+
+ _nc_STRCAT(full_name, filename, need);
+ if (tries & 4) {
+ char *t = s;
+ char *tc;
+ int num;
+ char chr;
+ int found = 0;
+ while (*t != '\0') {
+ if (*t == '-') {
+ if (sscanf(t, "-%d%c", &num, &chr) == 2 &&
+ chr == 'c' &&
+ (tc = strchr(t, chr)) != 0 &&
+ !(strncmp) (tc, "color", 5)) {
+ found = 1;
+ }
+ break;
+ }
+ ++t;
+ }
+ if (found && (t != s)
+ && (strncmp) (s, "xterm", (size_t) (t - s))) {
+ _nc_SPRINTF(s, _nc_SLIMIT(need - (size_t) (s - full_name))
+ "xterm%s", filename + (t - s));
+ } else {
+ continue;
+ }
+ }
+
+ if (tries & 2) {
+ int len = (int) strlen(filename);
+ if (len <= 4 || strcmp(filename + len - 4, ".dat")) {
+ _nc_STRCAT(full_name, ".dat", need);
+ } else {
+ continue;
+ }
+ }
+ if (is_file(full_name, &sb))
+ goto ok;
+ }
+ goto failed;
+ ok:
+ result = read_file(full_name);
+ failed:
+ free(full_name);
+ }
+ return result;
+}
+
+static void
+init_palette(const char *palette_file)
+{
+ if (palette_file != 0) {
+ char **data = read_palette(palette_file);
+
+ all_colors = typeMalloc(RGB_DATA, (unsigned) COLORS);
+ how_much.data += (sizeof(RGB_DATA) * (unsigned) COLORS);
+
+#if HAVE_COLOR_CONTENT
+ {
+ int cp;
+ for (cp = 0; cp < COLORS; ++cp) {
+ color_content((short) cp,
+ &all_colors[cp].red,
+ &all_colors[cp].green,
+ &all_colors[cp].blue);
+ }
+ }
+#else
+ memset(all_colors, 0, sizeof(RGB_DATA) * (size_t) COLORS);
+#endif
+ if (data != 0) {
+ int n;
+ int red, green, blue;
+ int scale = MaxSCALE;
+ int c;
+ for (n = 0; data[n] != 0; ++n) {
+ if (sscanf(data[n], "scale:%d", &c) == 1) {
+ scale = c;
+ } else if (sscanf(data[n], "%d:%d %d %d",
+ &c,
+ &red,
+ &green,
+ &blue) == 4
+ && okCOLOR(c)
+ && okSCALE(red)
+ && okSCALE(green)
+ && okSCALE(blue)) {
+ /* *INDENT-EQLS* */
+ all_colors[c].red = ScaledColor(red);
+ all_colors[c].green = ScaledColor(green);
+ all_colors[c].blue = ScaledColor(blue);
+ }
+ }
+ }
+ free_data(data);
+ /* *INDENT-EQLS* */
+ } else if (COLORS > 1) {
+ int power2 = 1;
+ int shift = 0;
+
+ while (power2 < COLORS) {
+ ++shift;
+ power2 <<= 1;
+ }
+
+ if ((power2 != COLORS) || ((shift % 3) != 0)) {
+ if (all_colors == 0) {
+ init_palette(getenv("TERM"));
+ if (all_colors == 0) {
+ giveup("With %d colors, you need a palette-file", COLORS);
+ }
+ }
+ }
+ }
+}
+
+/*
+ * Map the 24-bit RGB value to a color index if using a palette, otherwise to a
+ * direct color value.
+ */
+static int
+map_color(int value)
+{
+ int result = value;
+
+ if (result < 0) {
+ result = -1;
+ } else {
+ /* *INDENT-EQLS* */
+ int red = (value & 0xff0000) >> 16;
+ int green = (value & 0x00ff00) >> 8;
+ int blue = (value & 0x0000ff) >> 0;
+
+ if (all_colors != 0) {
+#define Diff2(n,m) ((m) - all_colors[n].m) * ((m) - all_colors[n].m)
+#define Diff2S(n) Diff2(n,red) + Diff2(n,green) + Diff2(n,blue)
+ int d2 = Diff2S(0);
+ int n;
+
+ /* *INDENT-EQLS* */
+ red = Scaled256(red);
+ green = Scaled256(green);
+ blue = Scaled256(blue);
+
+ for (result = 0, n = 1; n < COLORS; ++n) {
+ int d = Diff2(n, red) + Diff2(n, green) + Diff2(n, blue);
+ if (d < d2) {
+ d2 = d;
+ result = n;
+ }
+ }
+ } else { /* direct color */
+ int power2 = 1;
+ int shifts = 8;
+
+ while (power2 < COLORS) {
+ power2 <<= 3;
+ shifts--;
+ }
+
+ if (shifts > 0) {
+ /* TODO: round up */
+ red >>= shifts;
+ green >>= shifts;
+ blue >>= shifts;
+ result = ((red << (2 * (8 - shifts)))
+ + (green << (8 - shifts))
+ + blue);
+ }
+ }
+ }
+ return result;
+}
+
+static int
+bytes_of(int value)
+{
+ if (value & 7) {
+ value |= 7;
+ value++;
+ }
+ return value;
+}
+
+static int match_c(const char *, const char *, ...) GCC_SCANFLIKE(2,3);
+
+static char *
+skip_s(char *s)
+{
+ while (isspace(UChar(*s)))
+ s++;
+ return s;
+}
+
+static const char *
+skip_cs(const char *s)
+{
+ while (isspace(UChar(*s)))
+ s++;
+ return s;
+}
+
+static char *
+skip_word(char *s)
+{
+ s = skip_s(s);
+ while (isgraph(UChar(*s)))
+ s++;
+ return s;
+}
+
+static int
+match_c(const char *source, const char *pattern, ...)
+{
+ int limit = (int) strlen(source);
+ const char *last_s = source + limit;
+ va_list ap;
+ int ch;
+ int *ip;
+ char *cp;
+ float *fp;
+ long lv;
+
+ va_start(ap, pattern);
+
+ limit = -1;
+ while (*pattern != '\0') {
+ ch = UChar(*pattern++);
+ /* blank in the pattern matches zero-or-more blanks in source */
+ if (isspace(ch)) {
+ source = skip_cs(source);
+ continue;
+ }
+ /* %c, %d, %s are like sscanf except for special treatment of blanks */
+ if (ch == '%' && *pattern != '\0' && strchr("%cdnfsx", *pattern)) {
+ bool found = FALSE;
+ ch = *pattern++;
+ switch (ch) {
+ case '%':
+ source++;
+ break;
+ case 'c':
+ cp = va_arg(ap, char *);
+ do {
+ *cp++ = *source++;
+ } while (--limit > 0);
+ break;
+ case 'd':
+ case 'x':
+ limit = -1;
+ ip = va_arg(ap, int *);
+ lv = strtol(source, &cp, ch == 'd' ? 10 : 16);
+ if (cp != 0 && cp != source) {
+ *ip = (int) lv;
+ source = cp;
+ } else {
+ goto finish;
+ }
+ break;
+ case 'f':
+ /* floating point for pixels... */
+ fp = va_arg(ap, float *);
+ lv = strtol(source, &cp, 10);
+ if (cp == 0 || cp == source)
+ goto finish;
+ *fp = (float) lv;
+ source = cp;
+ if (*source == '.') {
+ lv = strtol(++source, &cp, 10);
+ if (cp == 0 || cp == source)
+ goto finish;
+ {
+ float scale = 1.0f;
+ int digits = (int) (cp - source);
+ while (digits-- > 0) {
+ scale *= 10.0f;
+ }
+ *fp += (float) lv / scale;
+ }
+ source = cp;
+ }
+ break;
+ case 'n':
+ /* not really sscanf... */
+ limit = *va_arg(ap, int *);
+ break;
+ case 's':
+ limit = -1;
+ cp = va_arg(ap, char *);
+ while (*source != '\0') {
+ ch = UChar(*source);
+ if (isspace(ch)) {
+ break;
+ } else if (found && (ch == *skip_cs(pattern))) {
+ break;
+ } else {
+ *cp++ = *source++;
+ found = TRUE;
+ }
+ }
+ *cp = '\0';
+ break;
+ }
+ continue;
+ }
+ /* other characters are matched literally */
+ if (*source++ != ch) {
+ break;
+ }
+ }
+ finish:
+
+ va_end(ap);
+ if (source > last_s)
+ source = last_s;
+ return (*source || *pattern) ? 0 : 1;
+}
+
+static int
+match_colors(const char *source, int cpp, char *arg1, char *arg2, char *arg3)
+{
+ int result = 0;
+
+ /* most files use a quasi-fixed format */
+ if (match_c(source, " \"%n%c %s %s \" , ", &cpp, arg1, arg2, arg3)) {
+ arg1[cpp] = '\0';
+ result = 1;
+ } else {
+ const char *s = skip_cs(source);
+ size_t have = strlen(source);
+
+ if (*s++ == '"' && have > ((size_t) cpp + 2)) {
+ memcpy(arg1, s, (size_t) cpp);
+ s += cpp;
+ while (*s++ == '\t') {
+ char *t;
+ for (t = arg2; (*s != '\0') && strchr("\t\"", *s) == 0;) {
+ if (*s == ' ') {
+ s = skip_cs(s);
+ break;
+ }
+ *t++ = *s++;
+ *t = '\0';
+ }
+ for (t = arg3; (*s != '\0') && strchr("\t\"", *s) == 0;) {
+ *t++ = *s++;
+ *t = '\0';
+ }
+ if (!strcmp(arg2, "c")) {
+ result = 1;
+ break;
+ }
+ }
+ }
+ }
+ return result;
+}
+
+static RGB_NAME *
+parse_rgb(char **data)
+{
+ char buf[BUFSIZ];
+ int n;
+ unsigned long r, g, b;
+ char *s, *t;
+ size_t item = 0;
+ size_t need;
+ RGB_NAME *result = 0;
+
+ for (need = 0; data[need] != 0; ++need) ;
+
+ result = typeCalloc(RGB_NAME, need + 2);
+ how_much.name += (sizeof(RGB_NAME) * (need + 2));
+
+ for (n = 0; data[n] != 0; ++n) {
+ if (strlen(t = data[n]) >= sizeof(buf) - 1)
+ continue;
+ if (*(s = skip_s(t)) == '!')
+ continue;
+
+ r = strtoul(s, &t, 10);
+ s = skip_s(t);
+ g = strtoul(s, &t, 10);
+ s = skip_s(t);
+ b = strtoul(s, &t, 10);
+ s = skip_s(t);
+
+ result[item].name = s;
+ t = s + strlen(s);
+ while (t-- != s && isspace(UChar(*t))) {
+ *t = '\0';
+ }
+ result[item].value = (int) ((r & 0xff) << 16 |
+ (g & 0xff) << 8 |
+ (b & 0xff));
+ ++item;
+ }
+
+ result[item].name = "none";
+ result[item].value = -1;
+
+ return result;
+}
+
+#define LOWERCASE(c) ((isalpha(UChar(c)) && isupper(UChar(c))) ? tolower(UChar(c)) : (c))
+
+static int
+CaselessCmp(const char *a, const char *b)
+{ /* strcasecmp isn't portable */
+ while (*a && *b) {
+ int cmp = LOWERCASE(*a) - LOWERCASE(*b);
+ if (cmp != 0)
+ break;
+ a++, b++;
+ }
+ return LOWERCASE(*a) - LOWERCASE(*b);
+}
+
+static RGB_NAME *
+lookup_rgb(const char *name)
+{
+ RGB_NAME *result = 0;
+ if (rgb_table != 0) {
+ int n;
+ for (n = 0; rgb_table[n].name != 0; ++n) {
+ if (!CaselessCmp(name, rgb_table[n].name)) {
+ result = &rgb_table[n];
+ break;
+ }
+ }
+ }
+ return result;
+}
+
+static PICS_HEAD *
+parse_xbm(char **data)
+{
+ int n;
+ int state = 0;
+ char buf[2048];
+ int num;
+ char ch;
+ char *s;
+ char *t;
+ PICS_HEAD *result;
+ size_t which = 0;
+ size_t cells = 0;
+
+ debugmsg("called parse_xbm");
+
+ result = typeCalloc(PICS_HEAD, 1);
+ how_much.head += sizeof(PICS_HEAD);
+
+ begin_c_values(2);
+ gather_c_values(0);
+ gather_c_values(0xffffff);
+
+ for (n = 0; data[n] != 0; ++n) {
+ if (strlen(s = data[n]) >= sizeof(buf) - 1)
+ continue;
+ switch (state) {
+ case 0:
+ case 1:
+ case 2:
+ if (sscanf(s, "#define %1024s %d%c", buf, &num, &ch) >= 2) {
+ if ((t = strstr(buf, "_width")) != 0) {
+ state |= 1;
+ result->wide = (short) bytes_of(num);
+ } else if ((t = strstr(buf, "_height")) != 0) {
+ state |= 2;
+ result->high = (short) num;
+ } else {
+ break;
+ }
+ *t = '\0';
+ if (result->name) {
+ if (strcmp(result->name, buf)) {
+ goto finish;
+ }
+ } else {
+ result->name = strdup(buf);
+ }
+ }
+ break;
+ case 3:
+ if (sscanf(s, "static char %1024[^_ ]_bits[]%c", buf, &ch) >= 1) {
+ if (strcmp(result->name, buf)) {
+ goto finish;
+ }
+ state = 4;
+ cells = (size_t) (result->wide * result->high);
+
+ result->cells = typeCalloc(PICS_CELL, cells);
+ how_much.cell += (sizeof(PICS_CELL) * cells);
+
+ if ((s = strchr(s, L_CURLY)) == 0)
+ break;
+ ++s;
+ } else {
+ break;
+ }
+ case 4:
+ while (*s != '\0') {
+ while (isspace(UChar(*s))) {
+ ++s;
+ }
+ if (isdigit(UChar(*s))) {
+ long value = strtol(s, &t, 0);
+ int b;
+ if (t != s || value > MaxRGB || value < 0) {
+ s = t;
+ } else {
+ state = -1;
+ goto finish;
+ }
+ for (b = 0; b < 8; ++b) {
+ if (((1L << b) & value) != 0) {
+ result->cells[which].ch = '*';
+ result->cells[which].fg = 1;
+ reading_ncols[1].count++;
+ } else {
+ result->cells[which].ch = ' ';
+ result->cells[which].fg = 0;
+ reading_ncols[0].count++;
+ }
+ if (++which > cells) {
+ state = -1;
+ goto finish;
+ }
+ }
+ }
+ if (*s == R_CURLY) {
+ state = 5;
+ goto finish;
+ } else if (*s == ',') {
+ ++s;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+ }
+ finish:
+ if (state < 4) {
+ debugmsg("...state was only %d", state);
+ if (result) {
+ result = free_pics_head(result);
+ }
+ } else {
+ finish_c_values(result);
+ }
+ return result;
+}
+
+static PICS_HEAD *
+parse_xpm(char **data)
+{
+ int state = 0;
+ PICS_HEAD *result;
+ RGB_NAME *by_name;
+ int n;
+ int cells = 0;
+ int cpp = 1; /* chars per pixel */
+ int num[6];
+ int found;
+ int which = 0;
+ int num_colors = 0;
+ char ch;
+ const char *cs;
+ char *s;
+ char buf[BUFSIZ];
+ char arg1[BUFSIZ];
+ char arg2[BUFSIZ];
+ char arg3[BUFSIZ];
+ char **list = 0;
+
+ debugmsg("called parse_xpm");
+
+ result = typeCalloc(PICS_HEAD, 1);
+ how_much.head += sizeof(PICS_HEAD);
+
+ for (n = 0; data[n] != 0; ++n) {
+ if (strlen(s = data[n]) >= sizeof(buf) - 1)
+ continue;
+ switch (state) {
+ case 0:
+ if (match_c(s, " /* XPM */ ")) {
+ state = 1;
+ }
+ break;
+ case 1:
+ if (match_c(s, " static char * %s [] = %c ", arg1, &ch) &&
+ ch == L_CURLY) {
+ result->name = strdup(arg1);
+ state = 2;
+ }
+ break;
+ case 2:
+ if (match_c(s, " \" %d %d %d %d \" , ",
+ num + 0, num + 1, num + 2, num + 3) ||
+ match_c(s, " \" %d %d %d %d %d %d \" , ",
+ num + 0, num + 1, num + 2, num + 3, num + 4, num + 5)) {
+ result->wide = (short) num[0];
+ result->high = (short) num[1];
+ result->colors = num[2];
+
+ begin_c_values(num[2]);
+
+ cells = (result->wide * result->high);
+
+ result->cells = typeCalloc(PICS_CELL, cells);
+ how_much.cell += sizeof(PICS_CELL) * (size_t) cells;
+
+ list = typeCalloc(char *, result->colors + 1);
+ how_much.list += sizeof(char *) * (size_t) (result->colors + 1);
+
+ cpp = num[3];
+ state = 3;
+ }
+ break;
+ case 3:
+ if (!match_colors(s, cpp, arg1, arg2, arg3)) {
+ break;
+ }
+ num_colors++;
+ free(list[reading_last]);
+ list[reading_last] = strdup(arg1);
+ if ((by_name = lookup_rgb(arg3)) != 0) {
+ found = gather_c_values(by_name->value);
+ } else if (*arg3 == '#') {
+ char *rgb = arg3 + 1;
+ unsigned long value = strtoul(rgb, &s, 16);
+ switch ((int) strlen(rgb)) {
+ case 6:
+ break;
+ case 12:
+ value = (((value >> 24) & 0xff0000L)
+ | ((value >> 16) & 0xff00L)
+ | ((value >> 8) & 0xffL));
+ break;
+ default:
+ warning("unexpected rgb value %s", rgb);
+ break;
+ }
+ found = gather_c_values((int) value);
+ } else {
+ found = gather_c_values(0); /* actually an error */
+ }
+ debugmsg(" [%d:%d] %06X", num_colors, result->colors,
+ reading_ncols[(found >= 0) ? found : 0].fgcol);
+ if (num_colors >= result->colors) {
+ finish_c_values(result);
+ state = 4;
+ if (list[0] == 0)
+ list[0] = strdup("\033");
+ }
+ break;
+ case 4:
+ if (*(cs = skip_cs(s)) == '"') {
+ ++cs;
+ while (*cs != '\0' && *cs != '"') {
+ int c;
+
+ /* FIXME - factor out */
+ for (c = 0; c < result->colors; ++c) {
+ if (list[c] == 0) {
+ /* should not happen... */
+ continue;
+ }
+ if (!(strncmp) (cs, list[c], (size_t) cpp)) {
+ result->cells[which].ch = list[c][0];
+ result->cells[which].fg = c;
+ result->fgcol[c].count++;
+ break;
+ }
+ }
+
+ if (result->cells[which].ch == 0) {
+ result->cells[which].ch = '?';
+ result->cells[which].fg = 0;
+ }
+
+ if (++which >= cells) {
+ state = 5;
+ break;
+ }
+ for (c = cpp; c > 0; --c, ++cs) {
+ if (*cs == '\0')
+ break;
+ }
+ }
+ }
+ break;
+ }
+ }
+
+ if (result && list) {
+ for (n = 0; n < result->colors; ++n)
+ free(list[n]);
+ free(list);
+ }
+
+ if (state < 5) {
+ debugmsg("...state was only %d", state);
+ result = free_pics_head(result);
+ }
+
+ if (result) {
+ debugmsg("...allocated %d colors", result->colors);
+ }
+
+ return result;
+}
+
+/*
+ * The obscurely-named "convert" is provided by ImageMagick
+ */
+static PICS_HEAD *
+parse_img(const char *filename)
+{
+ size_t need = strlen(filename) + 256;
+ char *cmd = malloc(need);
+ FILE *pp;
+ char buffer[BUFSIZ];
+ char dummy[BUFSIZ];
+ bool okay = TRUE;
+ PICS_HEAD *result;
+ int pic_x = 0;
+ int pic_y = 0;
+ int width = in_curses ? COLS : 80;
+
+ _nc_SPRINTF(cmd, _nc_SLIMIT(need) "identify \"%s\"", filename);
+ if (quiet)
+ _nc_STRCAT(cmd, " 2>/dev/null", need);
+
+ logmsg("...opening pipe to %s", cmd);
+
+ result = typeCalloc(PICS_HEAD, 1);
+ how_much.head += sizeof(PICS_HEAD);
+
+ if ((pp = popen(cmd, "r")) != 0) {
+ if (fgets(buffer, sizeof(buffer), pp) != 0) {
+ size_t n = strlen(filename);
+ debugmsg2("...read %s", buffer);
+ if (strlen(buffer) > n &&
+ !(strncmp) (buffer, filename, n) &&
+ isspace(UChar(buffer[n])) &&
+ sscanf(skip_word(buffer + n), " %dx%d ", &pic_x, &pic_y) == 2) {
+ /* distort image to make it show normally on terminal */
+ pic_x = (int) ((double) pic_x / aspect_ratio);
+ } else {
+ pic_x = pic_y = 0;
+ }
+ }
+ pclose(pp);
+ }
+ if (pic_x <= 0 || pic_y <= 0)
+ goto finish;
+
+ _nc_SPRINTF(cmd, _nc_SLIMIT(need)
+ "convert " "-resize %dx%d\\! " "-thumbnail %dx \"%s\" "
+ "-define txt:compliance=SVG txt:-",
+ pic_x, pic_y, width, filename);
+ if (quiet)
+ _nc_STRCAT(cmd, " 2>/dev/null", need);
+
+ logmsg("...opening pipe to %s", cmd);
+ if ((pp = popen(cmd, "r")) != 0) {
+ int count = 0;
+ int col = 0;
+ int row = 0;
+ int len = 0;
+ while (fgets(buffer, sizeof(buffer), pp) != 0) {
+ debugmsg2("[%5d] %s", count + 1, buffer);
+ if (strlen(buffer) > 160) { /* 80 columns would be enough */
+ okay = FALSE;
+ break;
+ }
+ if (count++ == 0) {
+ if (match_c(buffer,
+ "# ImageMagick pixel enumeration: %d,%d,%d,%s ",
+ &col, &row, &len, dummy)) {
+ result->name = strdup(filename);
+ result->wide = (short) col;
+ result->high = (short) row;
+
+ begin_c_values(256);
+
+ result->cells = typeCalloc(PICS_CELL, (size_t) (col * row));
+ how_much.cell += (sizeof(PICS_CELL) * (size_t) (col * row));
+ } else {
+ okay = FALSE;
+ break;
+ }
+ } else {
+ /*
+ * subsequent lines begin "col,row: (r,g,b,a) #RGB".
+ * Those r/g/b could be integers (0..255) or float-percentages.
+ */
+ int r, g, b, nocolor;
+ float rf, gf, bf;
+ unsigned check;
+ char *t;
+ char *s = t = strchr(buffer, '#');
+ bool matched = FALSE;
+
+ if (s != 0) {
+ /* after the "#RGB", there are differences - just ignore */
+ while (*s != '\0' && !isspace(UChar(*s)))
+ ++s;
+ *++s = '\0';
+ }
+
+ if (match_c(buffer,
+ "%d,%d: (%d,%d,%d,%d) #%x ",
+ &col, &row,
+ &r, &g, &b, &nocolor,
+ &check)) {
+ matched = TRUE;
+ } else if (match_c(buffer,
+ "%d,%d: (%f%%,%f%%,%f%%,%d) #%x ",
+ &col, &row,
+ &rf, &gf, &bf, &nocolor,
+ &check) ||
+ match_c(buffer,
+ "%d,%d: (%f%%,%f%%,%f%%) #%x ",
+ &col, &row,
+ &rf, &gf, &bf,
+ &check)) {
+ matched = TRUE;
+
+#define fp_fix(n) (int) (MaxRGB * (((n) > 100.0 ? 100.0 : (n)) / 100.0))
+
+ r = fp_fix(rf);
+ g = fp_fix(gf);
+ b = fp_fix(bf);
+ }
+ if ((s - t) > 8) /* 6 hex digits vs 8 */
+ check /= 256;
+ if (matched) {
+ int which, c;
+ int want_r = (check >> 16) & 0xff;
+ int want_g = (check >> 8) & 0xff;
+ int want_b = (check >> 0) & 0xff;
+
+#define fp_err(tst,ref) ((tst > MaxRGB) || ((tst - ref)*(tst - ref)) > 4)
+
+ if (fp_err(r, want_r) ||
+ fp_err(g, want_g) ||
+ fp_err(b, want_b)) {
+ okay = FALSE;
+ break;
+ }
+ c = gather_c_values((int) check);
+ which = col + (row * result->wide);
+ result->cells[which].ch = ((in_curses ||
+ check == 0xffffff)
+ ? ' '
+ : '#');
+ if (c >= 0 && c < reading_last) {
+ result->cells[which].fg = c;
+ reading_ncols[c].count++;
+ } else {
+ result->cells[which].fg = -1;
+ }
+ } else {
+ okay = FALSE;
+ break;
+ }
+ }
+ }
+ finish_c_values(result);
+ pclose(pp);
+ if (okay) {
+ /* FIXME - is this trimming needed? */
+ for (len = result->colors; len > 3; len--) {
+ if (result->fgcol[len - 1].fgcol == 0) {
+ result->colors = len - 1;
+ } else {
+ break;
+ }
+ }
+ }
+ }
+ finish:
+ free(cmd);
+
+ if (!okay) {
+ result = free_pics_head(result);
+ }
+
+ return result;
+}
+
+static PICS_HEAD *
+read_picture(const char *filename, char **data)
+{
+ PICS_HEAD *pics;
+ if ((pics = parse_xbm(data)) == 0) {
+ dispose_c_values();
+ if ((pics = parse_xpm(data)) == 0) {
+ dispose_c_values();
+ if ((pics = parse_img(filename)) == 0) {
+ dispose_c_values();
+ free_data(data);
+ warning("unexpected file-format for \"%s\"", filename);
+ } else if (pics->high == 0 || pics->wide == 0) {
+ dispose_c_values();
+ free_data(data);
+ pics = free_pics_head(pics);
+ warning("no picture found in \"%s\"", filename);
+ }
+ }
+ }
+ return pics;
+}
+
+#define fg_color(pics,n) (pics->fgcol[n].fgcol)
+
+static void
+dump_picture(PICS_HEAD * pics)
+{
+ int y, x;
+
+ printf("Name %s\n", pics->name);
+ printf("Size %dx%d\n", pics->high, pics->wide);
+ printf("Color\n");
+ for (y = 0; y < pics->colors; ++y) {
+ if (fg_color(pics, y) < 0) {
+ printf(" %3d: %d\n", y, fg_color(pics, y));
+ } else {
+ printf(" %3d: #%06x\n", y, fg_color(pics, y));
+ }
+ }
+ for (y = 0; y < pics->high; ++y) {
+ for (x = 0; x < pics->wide; ++x) {
+ putchar(pics->cells[y * pics->wide + x].ch);
+ }
+ putchar('\n');
+ }
+}
+
+#ifndef USE_DISPLAY_DRIVER
+static void
+init_display(const char *palette_path, int opt_d)
+{
+ (void) opt_d;
+ if (isatty(fileno(stdout))) {
+ in_curses = TRUE;
+ setlocale(LC_ALL, "");
+ initscr();
+ cbreak();
+ noecho();
+ curs_set(0);
+ if (has_colors()) {
+ start_color();
+#if HAVE_USE_DEFAULT_COLORS
+ if (opt_d)
+ use_default_colors();
+#endif
+ init_palette(palette_path);
+ }
+ scrollok(stdscr, FALSE);
+ stop_curses();
+ }
+}
+
+static void
+show_picture(PICS_HEAD * pics)
+{
+ int y, x;
+ int n;
+
+ debugmsg("called show_picture");
+ logmsg("...using %dx%d screen", LINES, COLS);
+#if HAVE_RESET_COLOR_PAIRS
+ reset_color_pairs();
+#elif HAVE_CURSCR
+ wclear(curscr);
+ clear();
+#endif
+ if (has_colors()) {
+ logmsg("...using %d colors", pics->colors);
+ for (n = 0; n < pics->colors; ++n) {
+ int my_pair = (n + 1);
+ int my_color = map_color(fg_color(pics, n));
+#if USE_EXTENDED_COLORS
+ if (use_extended_pairs) {
+ init_extended_pair(my_pair, my_color, my_color);
+ } else
+#endif
+ {
+ my_pair &= 0x7fff;
+ my_color &= 0x7fff;
+ init_pair((short) my_pair, (short) my_color, (short) my_color);
+ }
+ }
+ attrset(COLOR_PAIR(1));
+ erase();
+ }
+ for (y = 0; y < pics->high; ++y) {
+ if (y >= LINES)
+ break;
+ move(y, 0);
+
+ for (x = 0; x < pics->wide; ++x) {
+ int my_pair;
+
+ if (x >= COLS)
+ break;
+ n = (y * pics->wide + x);
+ my_pair = pics->cells[n].fg + 1;
+#if USE_EXTENDED_COLORS
+ if (use_extended_pairs) {
+ cchar_t temp;
+ wchar_t wch[2];
+ wch[0] = (wchar_t) pics->cells[n].ch;
+ wch[1] = 0;
+ setcchar(&temp, wch, A_NORMAL, (short) my_pair, &my_pair);
+ add_wch(&temp);
+ } else
+#endif
+ {
+ attrset(COLOR_PAIR(my_pair));
+ addch((chtype) pics->cells[n].ch);
+ }
+ }
+ }
+ if (slow_time >= 0) {
+ refresh();
+ if (slow_time > 0) {
+#ifdef NCURSES_VERSION
+ napms(1000 * slow_time);
+#else
+ sleep((unsigned) slow_time);
+#endif
+ }
+ } else {
+ wmove(stdscr, 0, 0);
+ getch();
+ }
+ if (!quiet)
+ endwin();
+}
+#endif
+
+static int
+compare_fg_counts(const void *a, const void *b)
+{
+ const FG_NODE *p = (const FG_NODE *) a;
+ const FG_NODE *q = (const FG_NODE *) b;
+ return (q->count - p->count);
+}
+
+static void
+report_colors(PICS_HEAD * pics)
+{
+ int accum;
+ double level;
+ int j;
+ int shift;
+ int total;
+ char buffer[256];
+
+ if (logfp == 0)
+ return;
+
+ qsort(pics->fgcol, (size_t) pics->colors, sizeof(FG_NODE), compare_fg_counts);
+ /*
+ * For debugging, show a (short) list of the colors used.
+ */
+ if (debugging && (pics->colors < 1000)) {
+ int digits = 0;
+ int high;
+ int wide = 4;
+ for (j = pics->colors; j != 0; j /= 10) {
+ ++digits;
+ if (j < 10)
+ ++digits;
+ }
+ if (digits > 8)
+ digits = 8;
+ logmsg("These colors were used:");
+ high = (pics->colors + wide - 1) / wide;
+ for (j = 0; j < high && j < pics->colors; ++j) {
+ int k;
+ char *s = buffer;
+ *s = '\0';
+ for (k = 0; k < wide; ++k) {
+ int n = j + (k * high);
+ size_t want = (sizeof(buffer) - (size_t) (s - buffer));
+ if (want < 100 || want >= sizeof(buffer))
+ break;
+ if (n >= pics->colors)
+ break;
+ if (k) {
+ *s++ = ' ';
+ if (digits < 8) {
+ _nc_SPRINTF(s, _nc_SLIMIT(want) "%*s", 8 - digits,
+ " ");
+ s += strlen(s);
+ }
+ }
+ if (pics->fgcol[n].fgcol >= 0) {
+ _nc_SPRINTF(s, _nc_SLIMIT(want) "%3d #%06X %*d", n,
+ pics->fgcol[n].fgcol,
+ digits, pics->fgcol[n].count);
+ } else {
+ _nc_SPRINTF(s, _nc_SLIMIT(want) "%3d (empty) %*d", n,
+ digits, pics->fgcol[n].count);
+ }
+ s += strlen(s);
+ if ((s - buffer) > 100)
+ break;
+ }
+ logmsg("%s", buffer);
+ }
+ }
+
+ /*
+ * Given the list of colors sorted by the number of times they are used,
+ * log a short report showing the number of colors for 90%, 99%, 99.9%,
+ * etc.
+ */
+ logmsg("Number of colors versus number of cells");
+ total = pics->high * pics->wide;
+ accum = 0;
+ level = 0.1;
+ shift = 1;
+ for (j = 0; j < pics->colors; ++j) {
+ accum += pics->fgcol[j].count;
+ if (accum >= (total * (1.0 - level))) {
+ int after = (shift > 2) ? shift - 2 : 0;
+ logmsg("%8d colors (%.1f%%) in %d cells (%.*f%%)",
+ j + 1,
+ (100.0 * (j + 1)) / pics->colors,
+ accum,
+ after, (100.0 * accum) / total);
+ if (accum >= total)
+ break;
+ level /= 10.0;
+ shift++;
+ }
+ }
+}
+/* *INDENT-OFF* */
+VERSION_COMMON()
+/* *INDENT-ON* */
+
+int
+main(int argc, char *argv[])
+{
+ int ch;
+ int opt_d = FALSE;
+ char ignore_ch;
+ const char *palette_path = 0;
+ const char *rgb_path = RGB_PATH;
+
+ while ((ch = getopt(argc, argv, OPTS_COMMON "a:dLl:p:qr:s:x:")) != -1) {
+ switch (ch) {
+ case 'a':
+ if (sscanf(optarg, "%lf%c", &aspect_ratio, &ignore_ch) != 1
+ || aspect_ratio < 0.1
+ || aspect_ratio > 10.) {
+ fprintf(stderr, "Expected a number in [0.1 to 10.]: %s\n", optarg);
+ usage(FALSE);
+ }
+ break;
+#if HAVE_USE_DEFAULT_COLORS
+ case 'd':
+ opt_d = TRUE;
+ break;
+#endif
+ case 'L':
+ debugging = TRUE;
+ break;
+ case 'l':
+ if ((logfp = fopen(optarg, "a")) == 0)
+ failed(optarg);
+ break;
+ case 'p':
+ palette_path = optarg;
+ break;
+ case 'q':
+ quiet = TRUE;
+ break;
+ case 'r':
+ rgb_path = optarg;
+ break;
+ case 's':
+ slow_time = atoi(optarg);
+ break;
+#if USE_EXTENDED_COLORS
+ case 'x':
+ {
+ char *s = optarg;
+ while (*s) {
+ switch (*s++) {
+ case 'p':
+ use_extended_pairs = TRUE;
+ break;
+ case 'c':
+ use_extended_colors = TRUE;
+ break;
+ default:
+ usage(FALSE);
+ break;
+ }
+ }
+ }
+ break;
+#endif
+ case OPTS_VERSION:
+ show_version(argv);
+ ExitProgram(EXIT_SUCCESS);
+ default:
+ usage(ch == OPTS_USAGE);
+ /* NOTREACHED */
+ }
+ }
+
+ if (optind < argc) {
+ char **rgb_data = read_file(rgb_path);
+ int n;
+
+ if (rgb_data)
+ rgb_table = parse_rgb(rgb_data);
+
+ init_display(palette_path, opt_d);
+ if (optind >= argc)
+ giveup("expected at least one image filename");
+
+ for (n = optind; n < argc; ++n) {
+ PICS_HEAD *pics;
+ char **data = read_file(argv[n]);
+
+ if (data == 0) {
+ warning("cannot read \"%s\"", argv[n]);
+ continue;
+ }
+ if ((pics = read_picture(argv[n], data)) != 0) {
+ if (in_curses) {
+ show_picture(pics);
+ } else {
+ dump_picture(pics);
+ }
+ report_colors(pics);
+ dispose_c_values();
+ free_data(data);
+ free_pics_head(pics);
+ }
+ }
+ free_data(rgb_data);
+ free(rgb_table);
+ free(all_colors);
+ } else {
+ usage(FALSE);
+ }
+
+ cleanup(EXIT_SUCCESS);
+}