themes: convert colorscheme.c to Perl
This commit is contained in:
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@ -1,5 +1,5 @@
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# env
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# Written in 2019 by Lucas
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# Written in 2019-2020 by Lucas
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# CC0 1.0 Universal/Public domain - No rights reserved
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#
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# To the extent possible under law, the author(s) have dedicated all
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@ -10,25 +10,21 @@
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# <http://creativecommons.org/publicdomain/zero/1.0/>.
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.POSIX:
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.SUFFIXES:
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.SUFFIXES: .c .in .txt .png
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.SUFFIXES: .in .txt .png
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LDLIBS= -lm
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THEMES= blueie brightie brightie2 brightie3 brightie4
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.c:
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$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LDLIBS)
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.in.txt:
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./colorscheme <"$<" >"$@"
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perl colorscheme.pl <"$<" >"$@"
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.in.png:
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./colorscheme -i <"$<" | pnmtopng >"$@"
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perl colorscheme.pl -i <"$<" | pnmtopng >"$@"
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all: colorscheme
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all: colorscheme.pl
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clean:
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rm -f colorscheme $(THEMES:=.png) $(THEMES:=.txt)
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rm -f $(THEMES:=.png) $(THEMES:=.txt)
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show: $(THEMES:=.png) $(THEMES:=.txt)
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show: $(THEMES:=.txt) $(THEMES:=.png)
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$(THEMES:=.png) $(THEMES:=.txt): all
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$(THEMES:=.txt) $(THEMES:=.png): all
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@ -1,198 +0,0 @@
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/*
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* env
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* Written in 2019 by Lucas
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* CC0 1.0 Universal/Public domain - No rights reserved
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*
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* To the extent possible under law, the author(s) have dedicated all
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* copyright and related and neighboring rights to this software to the
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* public domain worldwide. This software is distributed without any
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* warranty. You should have received a copy of the CC0 Public Domain
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* Dedication along with this software. If not, see
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* <http://creativecommons.org/publicdomain/zero/1.0/>.
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*/
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#include <errno.h>
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#include <math.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define LENGTH 50
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#define INRANGE(x, a, b) ((a) <= (x) && (x) <= (b))
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static void
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hsvtorgb(double hsv[3], uint8_t rgb[3])
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{
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double c, hh, m, x;
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double r, g, b;
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c = hsv[2] * hsv[1];
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hh = hsv[0] / 60.0;
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x = c * (1.0 - fabs(fmod(hh, 2.0) - 1.0));
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switch ((int)floor(hh == 6.0 ? 0.0 : hh)) {
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case 0: r = c; g = x; b = 0; break;
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case 1: r = x; g = c; b = 0; break;
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case 2: r = 0; g = c; b = x; break;
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case 3: r = 0; g = x; b = c; break;
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case 4: r = x; g = 0; b = c; break;
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case 5: r = c; g = 0; b = x; break;
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}
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m = hsv[2] - c;
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r += m; g += m; b += m;
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rgb[0] = round(255 * r);
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rgb[1] = round(255 * g);
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rgb[2] = round(255 * b);
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}
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static void
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hsltorgb(double hsl[3], uint8_t rgb[3])
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{
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double c, hh, m, x;
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double r, g, b;
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c = (1.0 - fabs(2.0 * hsl[2] - 1.0)) * hsl[1];
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hh = hsl[0] / 60.0;
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x = c * (1.0 - fabs(fmod(hh, 2.0) - 1.0));
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switch ((int)floor(hh == 6.0 ? 0.0 : hh)) {
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case 0: r = c; g = x; b = 0; break;
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case 1: r = x; g = c; b = 0; break;
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case 2: r = 0; g = c; b = x; break;
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case 3: r = 0; g = x; b = c; break;
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case 4: r = x; g = 0; b = c; break;
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case 5: r = c; g = 0; b = x; break;
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}
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m = hsl[2] - c / 2.0;
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r += m; g += m; b += m;
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rgb[0] = round(255 * r);
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rgb[1] = round(255 * g);
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rgb[2] = round(255 * b);
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}
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static void
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parsecolorline(const char *s, size_t n, uint8_t rgb[3])
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{
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double d[3];
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unsigned int u[3];
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if (sscanf(s, "hsv %lf %lf %lf", &d[0], &d[1], &d[2]) == 3) {
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if (!INRANGE(d[0], 0, 360) || !INRANGE(d[1], 0, 1)
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|| !INRANGE(d[2], 0, 1))
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goto err;
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hsvtorgb(d, rgb);
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} else if (sscanf(s, "hsl %lf %lf %lf", &d[0], &d[1], &d[2]) == 3) {
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if (!INRANGE(d[0], 0, 360) || !INRANGE(d[1], 0, 1)
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|| !INRANGE(d[2], 0, 1))
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goto err;
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hsltorgb(d, rgb);
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} else if (sscanf(s, "rgb %u %u %u", &u[0], &u[1], &u[2]) == 3) {
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if (!INRANGE(u[0], 0, 255) || !INRANGE(u[1], 0, 255)
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|| !INRANGE(u[2], 0, 255))
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goto err;
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rgb[0] = u[0]; rgb[1] = u[1]; rgb[2] = u[2];
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} else if (sscanf(s, "rgbhex %x %x %x", &u[0], &u[1], &u[2]) == 3) {
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if (!INRANGE(u[0], 0, 255) || !INRANGE(u[1], 0, 255)
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|| !INRANGE(u[2], 0, 255))
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goto err;
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rgb[0] = u[0]; rgb[1] = u[1]; rgb[2] = u[2];
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} else {
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err:
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fprintf(stderr, "Invalid input: \"%s\".", s);
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exit(1);
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}
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}
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static void
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readcolorscheme(uint8_t colorscheme[18][3])
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{
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char *line = NULL;
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size_t linesize = 0;
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ssize_t linelen;
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int nlines = 0;
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while ((linelen = getline(&line, &linesize, stdin)) != -1
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&& nlines < 18) {
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if (linelen == 0 || line[0] == '\n' || line[0] == '#')
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continue;
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parsecolorline(line, linelen, colorscheme[nlines]);
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nlines++;
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}
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free(line);
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if (ferror(stdin)) {
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fputs("Input error.\n", stderr);
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exit(1);
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}
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if (nlines < 18) {
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fputs("Not enought colors.\n", stderr);
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exit(1);
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}
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}
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static void
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writecolor(uint8_t rgb[3], int l)
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{
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int i;
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for (i = 0; i < l; i++) {
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if (fwrite(rgb, sizeof(rgb[0]), 3, stdout) != 3) {
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fputs("Short write.\n", stderr);
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exit(1);
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}
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}
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}
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static void
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do_image(uint8_t colorscheme[18][3])
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{
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int i, n;
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printf("P6\n%u %u 255\n", 9 * LENGTH, 2 * LENGTH);
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for (i = 0; i < LENGTH; i++)
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for (n = 0; n < 9; n++)
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writecolor(colorscheme[n], LENGTH);
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for (i = 0; i < LENGTH; i++)
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for (n = 9; n < 18; n++)
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writecolor(colorscheme[n], LENGTH);
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}
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static void
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do_colors(uint8_t colorscheme[18][3])
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{
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int n;
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for (n = 0; n < 18; n++)
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printf("#%02x%02x%02x\n", colorscheme[n][0],
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colorscheme[n][1], colorscheme[n][2]);
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}
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int
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main(int argc, char *argv[])
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{
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uint8_t colorscheme[18][3];
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int iflag = 0;
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if (argc > 2)
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goto usage;
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if (argc == 2) {
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if (strncmp(argv[1], "-i", 3) != 0)
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goto usage;
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iflag = 1;
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}
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readcolorscheme(colorscheme);
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if (iflag)
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do_image(colorscheme);
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else
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do_colors(colorscheme);
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return 0;
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usage:
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fprintf(stderr, "Usage: %s [-i]\n", argv[0]);
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return 1;
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}
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175
themes/colorscheme.pl
Normal file
175
themes/colorscheme.pl
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@ -0,0 +1,175 @@
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#!/usr/bin/env perl
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# colorscheme.pl
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#
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# Written in 2020 by Lucas
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#
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# To the extent possible under law, the author(s) have dedicated all
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# copyright and related and neighboring rights to this software to the
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# public domain worldwide. This software is distributed without any
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# warranty.
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#
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# You should have received a copy of the CC0 Public Domain Dedication
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# along with this software. If not, see
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# <http://creativecommons.org/publicdomain/zero/1.0/>.
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use v5.12;
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use strict;
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use warnings;
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use Getopt::Std;
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use POSIX qw(fmod);
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use constant {
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LENGTH => 50,
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};
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my $progname = $0;
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$progname =~ s@.*/@@;
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sub err (@)
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{
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say STDERR "$progname: @_";
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exit 1;
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}
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sub usage ()
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{
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say STDERR "Usage: $progname [-i]";
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exit 1;
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}
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sub validhsv ($$$)
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{
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my ($h, $s, $v) = @_;
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return $h >= 0.0 && $h <= 360.0 && $s >= 0.0 && $s <= 1.0 &&
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$v >= 0.0 && $v <= 1.0;
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}
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sub validhsl ($$$)
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{
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my ($h, $s, $l) = @_;
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return $h >= 0.0 && $h <= 360.0 && $s >= 0.0 && $s <= 1.0 &&
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$l >= 0.0 && $l <= 1.0;
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}
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sub validrgb ($$$)
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{
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my ($r, $g, $b) = @_;
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return $r >= 0 && $r <= 255 && $g >= 0 && $g <= 255 &&
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$b >= 0 && $b <= 255;
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}
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sub validrgbhex ($$$)
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{
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my ($r, $g, $b) = @_;
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return $r =~ /^[0-9A-Fa-f]{2}$/ && $g =~ /^[0-9A-Fa-f]{2}$/ &&
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$b =~ /^[0-9A-Fa-f]{2}$/;
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}
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sub hsvtorgb ($$$)
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{
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my ($h, $s, $v) = @_;
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my $c = $s * $v;
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my $hh = $h == 360.0 ? 0.0 : $h / 60.0;
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my $x = $c * (1.0 - abs(fmod($hh, 2.0) - 1.0));
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my ($r, $g, $b);
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for (int($hh)) {
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($r, $g, $b) = ($c, $x, 0) if $_ == 0;
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($r, $g, $b) = ($x, $c, 0) if $_ == 1;
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($r, $g, $b) = (0, $c, $x) if $_ == 2;
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($r, $g, $b) = (0, $x, $c) if $_ == 3;
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($r, $g, $b) = ($x, 0, $c) if $_ == 4;
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($r, $g, $b) = ($c, 0, $x) if $_ == 5;
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}
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my $m = $v - $c;
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return map {255 * ($_ + $m)} $r, $g, $b;
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}
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sub hsltorgb ($$$)
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{
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my ($h, $s, $l) = @_;
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my $c = (1.0 - abs(2.0 * $l - 1.0)) * $s;
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my $hh = $h == 360.0 ? 0.0 : $h / 60.0;
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my $x = $c * (1.0 - abs(fmod($hh, 2.0) - 1.0));
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my ($r, $g, $b);
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for (int($hh)) {
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($r, $g, $b) = ($c, $x, 0) if $_ == 0;
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($r, $g, $b) = ($x, $c, 0) if $_ == 1;
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($r, $g, $b) = (0, $c, $x) if $_ == 2;
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($r, $g, $b) = (0, $x, $c) if $_ == 3;
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($r, $g, $b) = ($x, 0, $c) if $_ == 4;
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($r, $g, $b) = ($c, 0, $x) if $_ == 5;
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}
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my $m = $l - $c / 2.0;
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return map {255 * ($_ + $m)} $r, $g, $b;
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}
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sub parseinput ()
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{
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my @colors;
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while (my $line = <STDIN>) {
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chomp $line;
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next if $line =~ /^#|^$/;
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my ($t, $x, $y, $z, undef) = split(/\s+/, $line, 5);
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my @v;
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if ($t eq "hsv") {
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die "invalid input: $line" unless validhsv($x, $y, $z);
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@v = map {int} hsvtorgb($x, $y, $z);
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} elsif ($t eq "hsl") {
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die "invalid input: $line" unless validhsl($x, $y, $z);
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@v = map {int} hsltorgb($x, $y, $z);
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} elsif ($t eq "rgb") {
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die "invalid input: $line" unless validrgb($x, $y, $z);
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@v = map {int} ($x, $y, $z);
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} elsif ($t eq "rgbhex") {
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die "invalid input: $line"
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unless validrgbhex($x, $y, $z);
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@v = map {hex} ($x, $y, $z);
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} else {
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die "invalid input: $line";
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}
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push(@colors, \@v);
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}
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return @colors;
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}
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sub main ()
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{
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my %opts;
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getopts("i", \%opts) or usage;
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my @colors = parseinput();
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if (defined($opts{"i"})) {
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err "Colorscheme doesn't have 18 colors"
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if scalar(@colors) != 18;
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printf "P6\n%u %u 255\n", 9 * LENGTH, 2 * LENGTH;
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for (0..LENGTH - 1) {
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for (0..8) {
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print pack("CCC", @{$colors[$_]}) x LENGTH;
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}
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}
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for (0..LENGTH - 1) {
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for (9..17) {
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print pack("CCC", @{$colors[$_]}) x LENGTH;
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}
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}
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} else {
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foreach (@colors) {
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say "#", (map {sprintf "%02x", $_} @$_);
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}
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}
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}
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main();
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