* authorization. *
****************************************************************************/
/*
- * $Id: picsmap.c,v 1.8 2017/05/14 01:26:30 tom Exp $
+ * $Id: picsmap.c,v 1.35 2017/06/04 00:20:15 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 read xpm file
- * TODO read "convert" via pipe (from ImageMagick)
* 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 for assumed palette of terminal
* TODO add option for init_color
+ * TODO add option for init_color vs init_extended_color
+ * TODO add option for init_pair vs alloc_pair
* TODO use pad to allow pictures larger than screen
+ * TODO improve load of image-file's color-table using tsearch.
*/
#include <test.priv.h>
#include <sys/types.h>
#include <sys/stat.h>
-#define L_CURL '{'
-#define R_CURL '}'
+#undef CUR /* use only the curses interface */
+
+#define L_BLOCK '['
+#define R_BLOCK ']'
+
+#define L_CURLY '{'
+#define R_CURLY '}'
+
+#define okCOLOR(n) ((n) >= 0 && (n) < COLORS)
+#define okRGB(n) ((n) >= 0 && (n) <= 1000)
+#define Scaled256(n) (NCURSES_COLOR_T) (int)(((n) * 1000.0) / 256)
+#define ScaledColor(n) (NCURSES_COLOR_T) (int)(((n) * 1000.0) / scale)
typedef struct {
int ch; /* nominal character to display */
PICS_CELL *cells;
} PICS_HEAD;
+typedef struct {
+ const char *name;
+ int value;
+} RGB_NAME;
+
+typedef struct {
+ short red;
+ short green;
+ short blue;
+} RGB_DATA;
+
+static void giveup(const char *fmt,...) GCC_PRINTFLIKE(1, 2);
+
static bool in_curses = FALSE;
+static RGB_NAME *rgb_table;
+static RGB_DATA *all_colors;
+
+static void
+free_data(char **data)
+{
+ free(data[0]);
+ free(data);
+}
+
+static void
+free_pics_head(PICS_HEAD * pics)
+{
+ free(pics->pairs);
+ free(pics->cells);
+ free(pics);
+}
/*
* Simplify reading xbm/xpm files by first making an array of lines. Blank
char **result = 0;
struct stat sb;
+ if (in_curses)
+ endwin();
+
printf("** %s\n", filename);
+
if (stat(filename, &sb) == 0
&& (sb.st_mode & S_IFMT) == S_IFREG
&& sb.st_size != 0) {
{
static const char *msg[] =
{
- "Usage: picsmap [xbm-file [...]]"
+ "Usage: picsmap [options] [imagefile [...]]",
+ "Read/display one or more xbm/xpm files (possibly use \"convert\")",
+ "",
+ "Options:",
+ " -p palette",
+ " -r rgb-path"
};
size_t n;
+ if (in_curses)
+ endwin();
+
fflush(stdout);
for (n = 0; n < SIZEOF(msg); n++)
fprintf(stderr, "%s\n", msg[n]);
usage();
}
+static void
+init_palette(const char *palette_file)
+{
+ if (palette_file != 0) {
+ int cp;
+
+ all_colors = typeMalloc(RGB_DATA, (unsigned) COLORS);
+ for (cp = 0; cp < COLORS; ++cp) {
+ color_content(cp,
+ &all_colors[cp].red,
+ &all_colors[cp].green,
+ &all_colors[cp].blue);
+ if (palette_file != 0) {
+ char **data = read_file(palette_file);
+ if (data != 0) {
+ int n;
+ int red, green, blue;
+ int scale = 1000;
+ 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)
+ && okRGB(red)
+ && okRGB(green)
+ && okRGB(blue)) {
+ /* *INDENT-EQLS* */
+ all_colors[c].red = ScaledColor(red);
+ all_colors[c].green = ScaledColor(green);
+ all_colors[c].blue = ScaledColor(blue);
+ }
+ }
+ free_data(data);
+ }
+ }
+ }
+ } else if (COLORS > 1) {
+ /* *INDENT-EQLS* */
+ int power2 = 1;
+ int shift = 0;
+
+ while (power2 < COLORS) {
+ ++shift;
+ power2 <<= 1;
+ }
+
+ if (power2 != COLORS || (shift % 3) != 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 r = (value & 0xff0000) >> 16;
- int g = (value & 0x00ff00) >> 8;
- int b = (value & 0x0000ff) >> 0;
- /* TODO simple mapping into COLOR_BLACK .. COLOR_WHITE */
- int result = ((r >= 128) << 2) + ((g >= 128) << 1) + (b >= 128);
+ 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;
}
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 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;
+ 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("cdnsx", *pattern)) {
+ bool found = FALSE;
+ ch = *pattern++;
+ switch (ch) {
+ 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 '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 {
+ char *t;
+ 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') {
+ 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);
+
+ 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;
+}
+
+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 (!strcasecmp(name, rgb_table[n].name)) {
+ result = &rgb_table[n];
+ break;
+ }
+ }
+ }
+ return result;
+}
+
static PICS_HEAD *
parse_xbm(char **data)
{
state = 4;
cells = (size_t) (result->wide * result->high);
result->cells = typeCalloc(PICS_CELL, cells);
- if ((s = strchr(s, L_CURL)) == 0)
+ if ((s = strchr(s, L_CURLY)) == 0)
break;
++s;
} else {
}
}
}
- if (*s == R_CURL) {
+ if (*s == R_CURLY) {
state = 5;
goto finish;
} else if (*s == ',') {
finish:
if (state < 4) {
if (result) {
- free(result->pairs);
- free(result->cells);
- free(result);
+ free_pics_head(result);
result = 0;
}
} else {
return result;
}
+static PICS_HEAD *
+parse_xpm(char **data)
+{
+ int state = 0;
+ PICS_HEAD *result = typeCalloc(PICS_HEAD, 1);
+ RGB_NAME *by_name;
+ int n;
+ int cells = 0;
+ int color = 0;
+ int cpp = 1; /* chars per pixel */
+ int num[6];
+ int which = 0;
+ char ch;
+ const char *cs;
+ char *s;
+ char buf[BUFSIZ];
+ char arg1[BUFSIZ];
+ char arg2[BUFSIZ];
+ char arg3[BUFSIZ];
+ char **list = 0;
+
+ 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 = num[0];
+ result->high = num[1];
+ result->colors = num[2];
+ result->pairs = typeCalloc(PICS_PAIR, result->colors);
+ cells = (size_t) (result->wide * result->high);
+ result->cells = typeCalloc(PICS_CELL, cells);
+ list = typeCalloc(char *, result->colors);
+ cpp = num[3];
+ state = 3;
+ }
+ break;
+ case 3:
+ if (!match_colors(s, cpp, arg1, arg2, arg3)) {
+ break;
+ }
+ list[color] = strdup(arg1);
+ if ((by_name = lookup_rgb(arg3)) != 0) {
+ result->pairs[color].fg = 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:
+ printf("unexpected rgb value %s\n", rgb);
+ break;
+ }
+ result->pairs[color].fg = (int) value;
+ } else {
+ result->pairs[color].fg = 0; /* actually an error */
+ }
+ if (++color >= result->colors)
+ state = 4;
+ break;
+ case 4:
+ if (*(cs = skip_cs(s)) == '"') {
+ ++cs;
+ while (*cs != '\0' && *cs != '"') {
+ int c;
+
+ for (c = 0; c < result->colors; ++c) {
+ if (!strncmp(cs, list[c], (size_t) cpp)) {
+ result->cells[which].ch = list[c][0];
+ result->cells[which].fg = c;
+ 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) ;
+ }
+ }
+ break;
+ }
+ }
+
+ if (result && list) {
+ for (n = 0; n < result->colors; ++n)
+ free(list[n]);
+ free(list);
+ }
+
+ if (state < 5) {
+ free_pics_head(result);
+ result = 0;
+ }
+
+ return result;
+}
+
+/*
+ * The obscurely-named "convert" is provided by ImageMagick
+ */
+static PICS_HEAD *
+parse_img(const char *filename)
+{
+ char *cmd = malloc(strlen(filename) + 80);
+ FILE *pp;
+ char buffer[BUFSIZ];
+ bool failed = FALSE;
+ PICS_HEAD *result = typeCalloc(PICS_HEAD, 1);
+
+ sprintf(cmd, "convert -thumbnail %dx \"%s\" txt:-", COLS, filename);
+ 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) {
+ if (strlen(buffer) > 160) { /* 80 columns would be enough */
+ failed = TRUE;
+ break;
+ }
+ if (count++ == 0) {
+ if (match_c(buffer,
+ "# ImageMagick pixel enumeration: %d,%d,%d,srgba ",
+ &col, &row, &len)) {
+ result->name = strdup(filename);
+ result->wide = col;
+ result->high = row;
+ result->colors = 256;
+ result->pairs = typeCalloc(PICS_PAIR, result->colors);
+ result->cells = typeCalloc(PICS_CELL, (size_t) (col * row));
+ } else {
+ failed = TRUE;
+ break;
+ }
+ } else {
+ /* subsequent lines begin "col,row: (r,g,b,a) #RGB" */
+ int r, g, b;
+ unsigned check;
+ int which, c;
+ char *s = strchr(buffer, '#');
+ 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,255) #%x ",
+ &col, &row,
+ &r, &g, &b,
+ &check)) {
+ if (r > 255 ||
+ g > 255 ||
+ b > 255 ||
+ check != (unsigned) ((r << 16) | (g << 8) | b)) {
+ failed = TRUE;
+ break;
+ }
+ for (c = 0; c < result->colors; ++c) {
+ if (result->pairs[c].fg == (int) check) {
+ break;
+ } else if (result->pairs[c].fg == 0) {
+ result->pairs[c].fg = (int) check;
+ break;
+ }
+ }
+ if (c >= result->colors) {
+ int more = (result->colors * 3) / 2;
+ PICS_PAIR *p = typeRealloc(PICS_PAIR, more, result->pairs);
+ if (p != 0) {
+ result->colors = more;
+ result->pairs = p;
+ result->pairs[c].fg = (int) check;
+ result->pairs[c].bg = 0;
+ while (++c < more) {
+ result->pairs[c].fg = 0;
+ result->pairs[c].bg = 0;
+ }
+ }
+ }
+ which = col + (row * result->wide);
+ result->cells[which].ch = '#'; /* TODO: space? */
+ result->cells[which].fg = (c < result->colors) ? c : -1;
+ } else {
+ failed = TRUE;
+ break;
+ }
+ }
+ }
+ pclose(pp);
+ if (!failed) {
+ for (len = result->colors; len > 3; len--) {
+ if (result->pairs[len - 1].fg == 0) {
+ result->colors = len - 1;
+ } else {
+ break;
+ }
+ }
+ }
+ }
+ free(cmd);
+
+ if (failed) {
+ free_pics_head(result);
+ result = 0;
+ }
+
+ return result;
+}
+
+static PICS_HEAD *
+read_picture(const char *filename, char **data)
+{
+ PICS_HEAD *pics;
+ if ((pics = parse_xbm(data)) == 0) {
+ if ((pics = parse_xpm(data)) == 0) {
+ if ((pics = parse_img(filename)) == 0) {
+ free_data(data);
+ giveup("unexpected file-format for \"%s\"", filename);
+ }
+ }
+ }
+ return pics;
+}
+
static void
dump_picture(PICS_HEAD * pics)
{
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 (pics->pairs[y].fg < 0) {
+ printf(" %3d: %d\n", y, pics->pairs[y].fg);
+ } else {
+ printf(" %3d: #%06x\n", y, pics->pairs[y].fg);
+ }
+ }
for (y = 0; y < pics->high; ++y) {
for (x = 0; x < pics->wide; ++x) {
putchar(pics->cells[y * pics->wide + x].ch);
int y, x;
int n;
- if (!in_curses) {
- in_curses = TRUE;
- initscr();
- cbreak();
- noecho();
- if (has_colors())
- start_color();
- }
- scrollok(stdscr, FALSE);
if (has_colors()) {
for (n = 0; n < pics->colors; ++n) {
init_pair((short) (n + 1),
main(int argc, char *argv[])
{
int n;
+ const char *palette_path = 0;
+ const char *rgb_path = "/etc/X11/rgb.txt";
- if (argc > 1) {
- for (n = 1; n < argc; ++n) {
- char **data = read_file(argv[n]);
+ while ((n = getopt(argc, argv, "p:r:")) != -1) {
+ switch (n) {
+ case 'p':
+ palette_path = optarg;
+ break;
+ case 'r':
+ rgb_path = optarg;
+ break;
+ default:
+ usage();
+ break;
+ }
+ }
+
+ if (optind < argc) {
+ char **rgb_data = read_file(rgb_path);
+
+ if (rgb_data)
+ rgb_table = parse_rgb(rgb_data);
+
+ if (isatty(fileno(stdout))) {
+ in_curses = TRUE;
+ initscr();
+ cbreak();
+ noecho();
+ if (has_colors()) {
+ start_color();
+ init_palette(palette_path);
+ }
+ scrollok(stdscr, FALSE);
+ endwin();
+ }
+ 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) {
giveup("cannot read \"%s\"", argv[n]);
- } else if ((pics = parse_xbm(data)) == 0) {
- giveup("unexpected file-format for \"%s\"", argv[n]);
- } else if (isatty(fileno(stdout))) {
+ }
+ pics = read_picture(argv[n], data);
+ if (in_curses) {
show_picture(pics);
} else {
dump_picture(pics);
}
+ free_data(data);
+ free_pics_head(pics);
}
+ free_data(rgb_data);
+ free(rgb_table);
} else {
usage();
}
projects / ncurses.git / blobdiff