Add --gradient option, allow specification of custom gradients.
Closes #47
This commit is contained in:
jaseg
parent
6db5a0fa50
commit
8ed4ce20a5
4 changed files with 466 additions and 19 deletions
13
Makefile
13
Makefile
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@ -1,7 +1,5 @@
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CC ?= gcc
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LOLCAT_SRC ?= lolcat.c
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CENSOR_SRC ?= censor.c
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CFLAGS ?= -std=c11 -Wall -Wextra -O3 -Wno-sign-compare
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LIBS := -lm
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@ -14,11 +12,14 @@ debug: all
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.PHONY: install clean debug
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lolcat: $(LOLCAT_SRC)
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$(CC) $(CFLAGS) -o $@ $^ $(LIBS)
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xterm256lut.h: xterm256lut_gen.py
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python $< > $@
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censor: $(CENSOR_SRC)
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$(CC) $(CFLAGS) -o $@ $^ $(LIBS)
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lolcat: lolcat.c xterm256lut.h
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$(CC) $(CFLAGS) -o $@ $< $(LIBS)
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censor: censor.c
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$(CC) $(CFLAGS) -o $@ $< $(LIBS)
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install: lolcat censor
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install lolcat $(DESTDIR)/lolcat
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205
lolcat.c
205
lolcat.c
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@ -24,7 +24,9 @@
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#include <stdlib.h>
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#include <string.h>
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#include <sys/time.h>
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#include <sys/param.h>
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#include <unistd.h>
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#include <limits.h>
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#include <wchar.h>
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#include <time.h>
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#include "math.h"
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@ -41,8 +43,11 @@ static char helpstr[] = "\n"
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" --no-force-locale, -l: Use encoding from system locale instead of\n"
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" assuming UTF-8\n"
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" --random, -r: Random colors\n"
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" --seed <d>, -s <d>: Random colors based on given seed, implies --random\n"
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" --seed <d>, -s <d>: Random colors based on given seed,\n"
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" implies --random\n"
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" --color_offset <d>, -o <d>: Start with a different color\n"
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" --gradient <g>, -g <g>: Use color gradient from given start to end color,\n"
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" format: -g ff4444:00ffff\n"
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" --24bit, -b: Output in 24-bit \"true\" RGB mode (slower and\n"
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" not supported by all terminals)\n"
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" --16color, -x: Output in 16-color mode for basic terminals\n"
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@ -62,6 +67,110 @@ static char helpstr[] = "\n"
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#define ARRAY_SIZE(foo) (sizeof(foo) / sizeof(foo[0]))
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const unsigned char codes[] = { 39, 38, 44, 43, 49, 48, 84, 83, 119, 118, 154, 148, 184, 178, 214, 208, 209, 203, 204, 198, 199, 163, 164, 128, 129, 93, 99, 63, 69, 33 };
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const unsigned char codes16[] = {31, 33, 32, 36, 34, 35, 95, 94, 96, 92, 93, 91};
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unsigned int codes_gradient[128];
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union rgb_c {
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struct {
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unsigned char b;
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unsigned char g;
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unsigned char r;
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};
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unsigned int i;
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};
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struct hsv_c {
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double h;
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double s;
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double v;
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};
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#include "xterm256lut.h"
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int xterm256lookup(union rgb_c *in) {
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size_t min_i;
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int min_v = INT_MAX;
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for (size_t i=0; i<ARRAY_SIZE(xterm256lut); i++) {
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int dr = in->r - xterm256lut[i].r;
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int dg = in->g - xterm256lut[i].g;
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int db = in->b - xterm256lut[i].b;
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int d = dr*dr + dg*dg + db*db;
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if (d < min_v) {
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min_v = d;
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min_i = i;
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}
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}
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return 16 + min_i;
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}
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void rgb2hsv(union rgb_c *in, struct hsv_c *out) {
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double r = in->r/255.0, g = in->g/255.0, b = in->b/255.0;
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double fCMax = MAX(MAX(r, g), b);
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double fCMin = MIN(MIN(r, g), b);
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double fDelta = fCMax - fCMin;
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out->v = fCMax;
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if(fDelta > 0) {
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if(fCMax == r) {
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out->h = 60 * (fmod(((g - b) / fDelta), 6));
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} else if(fCMax == g) {
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out->h = 60 * (((b - r) / fDelta) + 2);
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} else if(fCMax == b) {
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out->h = 60 * (((r - g) / fDelta) + 4);
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}
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if(out->h < 0) {
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out->h = 360 + out->h;
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}
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out->s = fCMax > 0 ? fDelta / fCMax : 0;
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} else {
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out->h = 0;
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out->s = 0;
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}
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}
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void hsv2rgb(struct hsv_c *in, union rgb_c *out) {
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double fC = in->v * in->s;
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double fHPrime = fmod(in->h / 60.0, 6);
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double fX = fC * (1 - fabs(fmod(fHPrime, 2) - 1));
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double fM = in->v - fC;
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switch ((int)fHPrime) {
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case 0: out->r = (fC + fM)*255; out->g = (fX + fM)*255; out->b = 0; break;
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case 1: out->g = (fC + fM)*255; out->r = (fX + fM)*255; out->b = 0; break;
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case 2: out->g = (fC + fM)*255; out->b = (fX + fM)*255; out->r = 0; break;
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case 3: out->b = (fC + fM)*255; out->g = (fX + fM)*255; out->r = 0; break;
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case 4: out->b = (fC + fM)*255; out->r = (fX + fM)*255; out->g = 0; break;
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case 5: out->r = (fC + fM)*255; out->b = (fX + fM)*255; out->g = 0; break;
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default: out->r = 0; out->g = 0; out->b = 0; break;
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}
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}
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void rgb_interpolate(union rgb_c *start, union rgb_c *end, union rgb_c *out, double f) {
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out->r = start->r + (end->r - start->r)*f;
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out->g = start->g + (end->g - start->g)*f;
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out->b = start->b + (end->b - start->b)*f;
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}
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void hsv_interpolate(struct hsv_c *start, struct hsv_c *end, union rgb_c *out, double f) {
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double hd = end->h - start->h;
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if (hd > 180) {
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hd -= 360;
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} else if (hd < -180) {
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hd += 360;
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}
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struct hsv_c hsv_intermediate = {
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.h = start->h + hd*f,
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.s = start->s + (end->s - start->s)*f,
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.v = start->v + (end->v - start->v)*f};
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if (hsv_intermediate.h < 0) {
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hsv_intermediate.h += 360;
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} else if (hsv_intermediate.h > 360) {
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hsv_intermediate.h -= 360;
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}
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hsv2rgb(&hsv_intermediate, out);
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}
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static void find_escape_sequences(wint_t c, int* state)
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{
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@ -111,6 +220,8 @@ int main(int argc, char** argv)
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int rgb = 0;
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int ansi16 = 0;
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int invert = 0;
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int gradient = 0;
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union rgb_c rgb_start, rgb_end;
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double freq_h = 0.23, freq_v = 0.1;
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struct timeval tv;
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@ -164,6 +275,30 @@ int main(int argc, char** argv)
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ansi16 = 1;
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} else if (!strcmp(argv[i], "-i") || !strcmp(argv[i], "--invert")) {
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invert = 1;
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} else if (!strcmp(argv[i], "-g") || !strcmp(argv[i], "--gradient")) {
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if ((++i) >= argc) {
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usage();
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}
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if (strlen(argv[i]) != 6+1+6 || argv[i][6] != ':') {
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wprintf(L"Invalid format for --gradient\n");
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usage();
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}
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argv[i][6] = '\0';
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rgb_start.i = strtoul(argv[i], &endptr, 16);
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if (*endptr) {
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wprintf(L"Invalid format for --gradient\n");
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usage();
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}
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rgb_end.i = strtoul(argv[i]+6+1, &endptr, 16);
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if (*endptr) {
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wprintf(L"Invalid format for --gradient\n");
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usage();
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}
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gradient = 1;
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} else if (!strcmp(argv[i], "--version")) {
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version();
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} else {
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@ -178,6 +313,25 @@ int main(int argc, char** argv)
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usage();
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}
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if (gradient) {
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if (ansi16) {
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wprintf(L"--gradient and --16color are mutually exclusive\n");
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usage();
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}
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if (!rgb) {
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double correction_factor =(2*ARRAY_SIZE(codes_gradient)) / (double)ARRAY_SIZE(codes);
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freq_h *= correction_factor;
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freq_v *= correction_factor;
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for (size_t i=0; i<ARRAY_SIZE(codes_gradient); i++) {
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double f = i / (double)(ARRAY_SIZE(codes_gradient) - 1);
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union rgb_c rgb_intermediate;
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rgb_interpolate(&rgb_start, &rgb_end, &rgb_intermediate, f);
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codes_gradient[i] = xterm256lookup(&rgb_intermediate);
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}
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}
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}
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if (invert) {
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if (ansi16) {
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wprintf(L"\033[30m\n");
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@ -246,23 +400,46 @@ int main(int argc, char** argv)
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} else {
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if (rgb) {
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i += wcwidth(c);
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float theta = i * freq_h / 5.0f + l * freq_v + (offx + 2.0f * (rand_offset + start_color) / RAND_MAX) * M_PI;
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float offset = 0.1;
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float theta = i * freq_h / 5.0f + l * freq_v + (offx + 2.0f * (rand_offset + start_color) / RAND_MAX)*M_PI;
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uint8_t red = lrintf((offset + (1.0f - offset) * (0.5f + 0.5f * sin(theta + 0 ))) * 255.0f);
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uint8_t green = lrintf((offset + (1.0f - offset) * (0.5f + 0.5f * sin(theta + 2 * M_PI / 3 ))) * 255.0f);
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uint8_t blue = lrintf((offset + (1.0f - offset) * (0.5f + 0.5f * sin(theta + 4 * M_PI / 3 ))) * 255.0f);
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wprintf(L"\033[%d;2;%d;%d;%dm", (invert ? 48 : 38), red, green, blue);
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union rgb_c c;
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if (gradient) {
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theta = fmodf(theta/2.0/M_PI, 2.0f);
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if (theta > 1.0f) {
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theta = 2.0f - theta;
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}
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rgb_interpolate(&rgb_start, &rgb_end, &c, theta);
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} else {
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float offset = 0.1;
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c.r = lrintf((offset + (1.0f - offset) * (0.5f + 0.5f * sin(theta + 0 ))) * 255.0f);
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c.g = lrintf((offset + (1.0f - offset) * (0.5f + 0.5f * sin(theta + 2 * M_PI / 3 ))) * 255.0f);
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c.b = lrintf((offset + (1.0f - offset) * (0.5f + 0.5f * sin(theta + 4 * M_PI / 3 ))) * 255.0f);
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}
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wprintf(L"\033[%d;2;%d;%d;%dm", (invert ? 48 : 38), c.r, c.g, c.b);
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} else if (ansi16) {
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int ncc = offx * ARRAY_SIZE(codes16) + (int)((i += wcwidth(c)) * freq_h + l * freq_v);
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if (cc != ncc)
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if (cc != ncc) {
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wprintf(L"\033[%hhum", (invert ? 10 : 0) + codes16[(rand_offset + start_color + (cc = ncc)) % ARRAY_SIZE(codes16)]);
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}
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} else {
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int ncc = offx * ARRAY_SIZE(codes) + (int)((i += wcwidth(c)) * freq_h + l * freq_v);
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if (cc != ncc)
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wprintf(L"\033[%d;5;%hhum", (invert ? 48 : 38), codes[(rand_offset + start_color + (cc = ncc)) % ARRAY_SIZE(codes)]);
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if (gradient) {
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int ncc = offx * ARRAY_SIZE(codes_gradient) + (int)((i += wcwidth(c)) * freq_h + l * freq_v);
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if (cc != ncc) {
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size_t lookup = (rand_offset + start_color + (cc = ncc)) % (2*ARRAY_SIZE(codes_gradient));
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if (lookup >= ARRAY_SIZE(codes_gradient)) {
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lookup = 2*ARRAY_SIZE(codes_gradient) - 1 - lookup;
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}
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wprintf(L"\033[%d;5;%hhum", (invert ? 48 : 38), codes_gradient[lookup]);
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}
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} else {
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int ncc = offx * ARRAY_SIZE(codes) + (int)((i += wcwidth(c)) * freq_h + l * freq_v);
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if (cc != ncc) {
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wprintf(L"\033[%d;5;%hhum", (invert ? 48 : 38), codes[(rand_offset + start_color + (cc = ncc)) % ARRAY_SIZE(codes)]);
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}
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}
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}
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}
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}
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@ -270,12 +447,14 @@ int main(int argc, char** argv)
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putwchar(c);
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if (escape_state == 2) /* implies "colors" */
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if (escape_state == 2) { /* implies "colors" */
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wprintf(L"\033[38;5;%hhum", codes[(rand_offset + start_color + cc) % ARRAY_SIZE(codes)]);
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}
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}
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if (colors)
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if (colors) {
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wprintf(L"\033[0m");
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}
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cc = -1;
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243
xterm256lut.h
Normal file
243
xterm256lut.h
Normal file
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@ -0,0 +1,243 @@
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/* GENERATED HEADER FILE DO NOT EDIT */
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union rgb_c xterm256lut[256-16] = {
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{{0x00, 0x00, 0x00}},
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{{0x5f, 0x00, 0x00}},
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{{0x87, 0x00, 0x00}},
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{{0xaf, 0x00, 0x00}},
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{{0xd7, 0x00, 0x00}},
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{{0xff, 0x00, 0x00}},
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{{0x00, 0x5f, 0x00}},
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{{0x5f, 0x5f, 0x00}},
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{{0x87, 0x5f, 0x00}},
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{{0xaf, 0x5f, 0x00}},
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{{0xd7, 0x5f, 0x00}},
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{{0xff, 0x5f, 0x00}},
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{{0x00, 0x87, 0x00}},
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{{0x5f, 0x87, 0x00}},
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{{0x87, 0x87, 0x00}},
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{{0xaf, 0x87, 0x00}},
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{{0xd7, 0x87, 0x00}},
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{{0xff, 0x87, 0x00}},
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{{0x00, 0xaf, 0x00}},
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{{0x5f, 0xaf, 0x00}},
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{{0x87, 0xaf, 0x00}},
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{{0xaf, 0xaf, 0x00}},
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{{0xd7, 0xaf, 0x00}},
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{{0xff, 0xaf, 0x00}},
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{{0x00, 0xd7, 0x00}},
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{{0x5f, 0xd7, 0x00}},
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{{0x87, 0xd7, 0x00}},
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{{0xaf, 0xd7, 0x00}},
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{{0xd7, 0xd7, 0x00}},
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{{0xff, 0xd7, 0x00}},
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{{0x00, 0xff, 0x00}},
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{{0x5f, 0xff, 0x00}},
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{{0x87, 0xff, 0x00}},
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{{0xaf, 0xff, 0x00}},
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{{0xd7, 0xff, 0x00}},
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{{0xff, 0xff, 0x00}},
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{{0x00, 0x00, 0x5f}},
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{{0x5f, 0x00, 0x5f}},
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{{0x87, 0x00, 0x5f}},
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{{0xaf, 0x00, 0x5f}},
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{{0xd7, 0x00, 0x5f}},
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{{0xff, 0x00, 0x5f}},
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{{0x00, 0x5f, 0x5f}},
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{{0x5f, 0x5f, 0x5f}},
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{{0x87, 0x5f, 0x5f}},
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{{0xaf, 0x5f, 0x5f}},
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{{0xd7, 0x5f, 0x5f}},
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{{0xff, 0x5f, 0x5f}},
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{{0x00, 0x87, 0x5f}},
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{{0x5f, 0x87, 0x5f}},
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{{0x87, 0x87, 0x5f}},
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{{0xaf, 0x87, 0x5f}},
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{{0xd7, 0x87, 0x5f}},
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{{0xff, 0x87, 0x5f}},
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{{0x00, 0xaf, 0x5f}},
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{{0x5f, 0xaf, 0x5f}},
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{{0x87, 0xaf, 0x5f}},
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{{0xaf, 0xaf, 0x5f}},
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{{0xd7, 0xaf, 0x5f}},
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{{0xff, 0xaf, 0x5f}},
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{{0x00, 0xd7, 0x5f}},
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{{0x5f, 0xd7, 0x5f}},
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{{0x87, 0xd7, 0x5f}},
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{{0xaf, 0xd7, 0x5f}},
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{{0xd7, 0xd7, 0x5f}},
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{{0xff, 0xd7, 0x5f}},
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{{0x00, 0xff, 0x5f}},
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{{0x5f, 0xff, 0x5f}},
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{{0x87, 0xff, 0x5f}},
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{{0xaf, 0xff, 0x5f}},
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{{0xd7, 0xff, 0x5f}},
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{{0xff, 0xff, 0x5f}},
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{{0x00, 0x00, 0x87}},
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{{0x5f, 0x00, 0x87}},
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{{0x87, 0x00, 0x87}},
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{{0xaf, 0x00, 0x87}},
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{{0xd7, 0x00, 0x87}},
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{{0xff, 0x00, 0x87}},
|
||||
{{0x00, 0x5f, 0x87}},
|
||||
{{0x5f, 0x5f, 0x87}},
|
||||
{{0x87, 0x5f, 0x87}},
|
||||
{{0xaf, 0x5f, 0x87}},
|
||||
{{0xd7, 0x5f, 0x87}},
|
||||
{{0xff, 0x5f, 0x87}},
|
||||
{{0x00, 0x87, 0x87}},
|
||||
{{0x5f, 0x87, 0x87}},
|
||||
{{0x87, 0x87, 0x87}},
|
||||
{{0xaf, 0x87, 0x87}},
|
||||
{{0xd7, 0x87, 0x87}},
|
||||
{{0xff, 0x87, 0x87}},
|
||||
{{0x00, 0xaf, 0x87}},
|
||||
{{0x5f, 0xaf, 0x87}},
|
||||
{{0x87, 0xaf, 0x87}},
|
||||
{{0xaf, 0xaf, 0x87}},
|
||||
{{0xd7, 0xaf, 0x87}},
|
||||
{{0xff, 0xaf, 0x87}},
|
||||
{{0x00, 0xd7, 0x87}},
|
||||
{{0x5f, 0xd7, 0x87}},
|
||||
{{0x87, 0xd7, 0x87}},
|
||||
{{0xaf, 0xd7, 0x87}},
|
||||
{{0xd7, 0xd7, 0x87}},
|
||||
{{0xff, 0xd7, 0x87}},
|
||||
{{0x00, 0xff, 0x87}},
|
||||
{{0x5f, 0xff, 0x87}},
|
||||
{{0x87, 0xff, 0x87}},
|
||||
{{0xaf, 0xff, 0x87}},
|
||||
{{0xd7, 0xff, 0x87}},
|
||||
{{0xff, 0xff, 0x87}},
|
||||
{{0x00, 0x00, 0xaf}},
|
||||
{{0x5f, 0x00, 0xaf}},
|
||||
{{0x87, 0x00, 0xaf}},
|
||||
{{0xaf, 0x00, 0xaf}},
|
||||
{{0xd7, 0x00, 0xaf}},
|
||||
{{0xff, 0x00, 0xaf}},
|
||||
{{0x00, 0x5f, 0xaf}},
|
||||
{{0x5f, 0x5f, 0xaf}},
|
||||
{{0x87, 0x5f, 0xaf}},
|
||||
{{0xaf, 0x5f, 0xaf}},
|
||||
{{0xd7, 0x5f, 0xaf}},
|
||||
{{0xff, 0x5f, 0xaf}},
|
||||
{{0x00, 0x87, 0xaf}},
|
||||
{{0x5f, 0x87, 0xaf}},
|
||||
{{0x87, 0x87, 0xaf}},
|
||||
{{0xaf, 0x87, 0xaf}},
|
||||
{{0xd7, 0x87, 0xaf}},
|
||||
{{0xff, 0x87, 0xaf}},
|
||||
{{0x00, 0xaf, 0xaf}},
|
||||
{{0x5f, 0xaf, 0xaf}},
|
||||
{{0x87, 0xaf, 0xaf}},
|
||||
{{0xaf, 0xaf, 0xaf}},
|
||||
{{0xd7, 0xaf, 0xaf}},
|
||||
{{0xff, 0xaf, 0xaf}},
|
||||
{{0x00, 0xd7, 0xaf}},
|
||||
{{0x5f, 0xd7, 0xaf}},
|
||||
{{0x87, 0xd7, 0xaf}},
|
||||
{{0xaf, 0xd7, 0xaf}},
|
||||
{{0xd7, 0xd7, 0xaf}},
|
||||
{{0xff, 0xd7, 0xaf}},
|
||||
{{0x00, 0xff, 0xaf}},
|
||||
{{0x5f, 0xff, 0xaf}},
|
||||
{{0x87, 0xff, 0xaf}},
|
||||
{{0xaf, 0xff, 0xaf}},
|
||||
{{0xd7, 0xff, 0xaf}},
|
||||
{{0xff, 0xff, 0xaf}},
|
||||
{{0x00, 0x00, 0xd7}},
|
||||
{{0x5f, 0x00, 0xd7}},
|
||||
{{0x87, 0x00, 0xd7}},
|
||||
{{0xaf, 0x00, 0xd7}},
|
||||
{{0xd7, 0x00, 0xd7}},
|
||||
{{0xff, 0x00, 0xd7}},
|
||||
{{0x00, 0x5f, 0xd7}},
|
||||
{{0x5f, 0x5f, 0xd7}},
|
||||
{{0x87, 0x5f, 0xd7}},
|
||||
{{0xaf, 0x5f, 0xd7}},
|
||||
{{0xd7, 0x5f, 0xd7}},
|
||||
{{0xff, 0x5f, 0xd7}},
|
||||
{{0x00, 0x87, 0xd7}},
|
||||
{{0x5f, 0x87, 0xd7}},
|
||||
{{0x87, 0x87, 0xd7}},
|
||||
{{0xaf, 0x87, 0xd7}},
|
||||
{{0xd7, 0x87, 0xd7}},
|
||||
{{0xff, 0x87, 0xd7}},
|
||||
{{0x00, 0xaf, 0xd7}},
|
||||
{{0x5f, 0xaf, 0xd7}},
|
||||
{{0x87, 0xaf, 0xd7}},
|
||||
{{0xaf, 0xaf, 0xd7}},
|
||||
{{0xd7, 0xaf, 0xd7}},
|
||||
{{0xff, 0xaf, 0xd7}},
|
||||
{{0x00, 0xd7, 0xd7}},
|
||||
{{0x5f, 0xd7, 0xd7}},
|
||||
{{0x87, 0xd7, 0xd7}},
|
||||
{{0xaf, 0xd7, 0xd7}},
|
||||
{{0xd7, 0xd7, 0xd7}},
|
||||
{{0xff, 0xd7, 0xd7}},
|
||||
{{0x00, 0xff, 0xd7}},
|
||||
{{0x5f, 0xff, 0xd7}},
|
||||
{{0x87, 0xff, 0xd7}},
|
||||
{{0xaf, 0xff, 0xd7}},
|
||||
{{0xd7, 0xff, 0xd7}},
|
||||
{{0xff, 0xff, 0xd7}},
|
||||
{{0x00, 0x00, 0xff}},
|
||||
{{0x5f, 0x00, 0xff}},
|
||||
{{0x87, 0x00, 0xff}},
|
||||
{{0xaf, 0x00, 0xff}},
|
||||
{{0xd7, 0x00, 0xff}},
|
||||
{{0xff, 0x00, 0xff}},
|
||||
{{0x00, 0x5f, 0xff}},
|
||||
{{0x5f, 0x5f, 0xff}},
|
||||
{{0x87, 0x5f, 0xff}},
|
||||
{{0xaf, 0x5f, 0xff}},
|
||||
{{0xd7, 0x5f, 0xff}},
|
||||
{{0xff, 0x5f, 0xff}},
|
||||
{{0x00, 0x87, 0xff}},
|
||||
{{0x5f, 0x87, 0xff}},
|
||||
{{0x87, 0x87, 0xff}},
|
||||
{{0xaf, 0x87, 0xff}},
|
||||
{{0xd7, 0x87, 0xff}},
|
||||
{{0xff, 0x87, 0xff}},
|
||||
{{0x00, 0xaf, 0xff}},
|
||||
{{0x5f, 0xaf, 0xff}},
|
||||
{{0x87, 0xaf, 0xff}},
|
||||
{{0xaf, 0xaf, 0xff}},
|
||||
{{0xd7, 0xaf, 0xff}},
|
||||
{{0xff, 0xaf, 0xff}},
|
||||
{{0x00, 0xd7, 0xff}},
|
||||
{{0x5f, 0xd7, 0xff}},
|
||||
{{0x87, 0xd7, 0xff}},
|
||||
{{0xaf, 0xd7, 0xff}},
|
||||
{{0xd7, 0xd7, 0xff}},
|
||||
{{0xff, 0xd7, 0xff}},
|
||||
{{0x00, 0xff, 0xff}},
|
||||
{{0x5f, 0xff, 0xff}},
|
||||
{{0x87, 0xff, 0xff}},
|
||||
{{0xaf, 0xff, 0xff}},
|
||||
{{0xd7, 0xff, 0xff}},
|
||||
{{0xff, 0xff, 0xff}},
|
||||
{{0x00, 0x00, 0x00}},
|
||||
{{0x12, 0x12, 0x12}},
|
||||
{{0x1c, 0x1c, 0x1c}},
|
||||
{{0x26, 0x26, 0x26}},
|
||||
{{0x30, 0x30, 0x30}},
|
||||
{{0x3a, 0x3a, 0x3a}},
|
||||
{{0x44, 0x44, 0x44}},
|
||||
{{0x4e, 0x4e, 0x4e}},
|
||||
{{0x58, 0x58, 0x58}},
|
||||
{{0x62, 0x62, 0x62}},
|
||||
{{0x6c, 0x6c, 0x6c}},
|
||||
{{0x76, 0x76, 0x76}},
|
||||
{{0x80, 0x80, 0x80}},
|
||||
{{0x8a, 0x8a, 0x8a}},
|
||||
{{0x94, 0x94, 0x94}},
|
||||
{{0x9e, 0x9e, 0x9e}},
|
||||
{{0xa8, 0xa8, 0xa8}},
|
||||
{{0xb2, 0xb2, 0xb2}},
|
||||
{{0xbc, 0xbc, 0xbc}},
|
||||
{{0xc6, 0xc6, 0xc6}},
|
||||
{{0xd0, 0xd0, 0xd0}},
|
||||
{{0xda, 0xda, 0xda}},
|
||||
{{0xe4, 0xe4, 0xe4}},
|
||||
{{0xee, 0xee, 0xee}},
|
||||
};
|
||||
24
xterm256lut_gen.py
Normal file
24
xterm256lut_gen.py
Normal file
|
|
@ -0,0 +1,24 @@
|
|||
|
||||
xterm_colors = []
|
||||
|
||||
# This is ripped out of pygments
|
||||
# I leave out the 16 standard colors since people tend to re-define them to their liking.
|
||||
|
||||
# colors 16..232: the 6x6x6 color cube
|
||||
_valuerange = (0x00, 0x5f, 0x87, 0xaf, 0xd7, 0xff)
|
||||
for i in range(217):
|
||||
r = _valuerange[(i // 36) % 6]
|
||||
g = _valuerange[(i // 6) % 6]
|
||||
b = _valuerange[i % 6]
|
||||
xterm_colors.append((r, g, b))
|
||||
|
||||
# colors 233..253: grayscale
|
||||
for i in range(1, 24):
|
||||
v = 8 + i * 10
|
||||
xterm_colors.append((v, v, v))
|
||||
|
||||
print('/* GENERATED HEADER FILE DO NOT EDIT */')
|
||||
print('union rgb_c xterm256lut[256-16] = {')
|
||||
for r,g,b in xterm_colors:
|
||||
print(f' {{{{0x{b:02x}, 0x{g:02x}, 0x{r:02x}}}}},');
|
||||
print('};');
|
||||
Loading…
Add table
Add a link
Reference in a new issue