cosmopolitan/dsp/tty/setbgfg24.c

55 lines
2.6 KiB
C

/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2020 Justine Alexandra Roberts Tunney │
│ │
│ This program is free software; you can redistribute it and/or modify │
│ it under the terms of the GNU General Public License as published by │
│ the Free Software Foundation; version 2 of the License. │
│ │
│ This program is distributed in the hope that it will be useful, but │
│ WITHOUT ANY WARRANTY; without even the implied warranty of │
│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU │
│ General Public License for more details. │
│ │
│ You should have received a copy of the GNU General Public License │
│ along with this program; if not, write to the Free Software │
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "dsp/tty/itoa8.h"
#include "dsp/tty/quant.h"
#include "libc/str/str.h"
static char *rgbcpy(char *p, struct TtyRgb bg) {
memcpy(p, ";2;\0", 4);
p = itoa8(p + 3, bg.r);
*p++ = ';';
p = itoa8(p, bg.g);
*p++ = ';';
return itoa8(p, bg.b);
}
char *setbg24_(char *p, struct TtyRgb bg) {
memcpy(p, "\e[48", 4);
p = rgbcpy(p + 4, bg);
*p++ = 'm';
return p;
}
char *setfg24_(char *p, struct TtyRgb fg) {
memcpy(p, "\e[38", 4);
p = rgbcpy(p + 4, fg);
*p++ = 'm';
return p;
}
char *setbgfg24_(char *p, struct TtyRgb bg, struct TtyRgb fg) {
memcpy(p, "\e[48", 4);
p = rgbcpy(p + 4, bg);
memcpy(p, ";38\0", 4);
p = rgbcpy(p + 3, fg);
*p++ = 'm';
return p;
}