cosmopolitan/dsp/tty/setbgfg24.c

54 lines
2.5 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 │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#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;
}