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True color (24-bit) terminal support for tmux-1.9a and tmux-2.0
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This diff is a modified version of a diff written by Arnis Lapsa. | |
[ The original can be found here: https://gist.github.com/ArnisL/6156593 ] | |
This diff adds support to tmux for 24-bit color CSI SRG sequences. This | |
allows terminal based programs that take advantage of it (e.g., vim or | |
emacs with https://gist.github.com/choppsv1/73d51cedd3e8ec72e1c1 patch) | |
to display 16 million colors while running in tmux. | |
The primary change I made was to support ":" as a delimeter as well | |
as the older ";" delimeter. The ":" delimiter is defined by ITU T.416 | |
which is apparently the correct way to do this; however, many early | |
implementations of 24 bit support in terminal applications used ";" | |
so both are supported. Additionally I updated the diff to apply cleanly | |
to 1.9a as well as the current tmux git head. | |
diff -ur tmux-1.9a/colour.c tmux-1.9a-24bit/colour.c | |
--- tmux-1.9a/colour.c 2014-02-22 15:48:37.000000000 -0500 | |
+++ tmux-1.9a-24bit/colour.c 2014-09-13 21:26:15.000000000 -0400 | |
@@ -29,12 +29,6 @@ | |
* of the 256 colour palette. | |
*/ | |
-/* An RGB colour. */ | |
-struct colour_rgb { | |
- u_char r; | |
- u_char g; | |
- u_char b; | |
-}; | |
/* 256 colour RGB table, generated on first use. */ | |
struct colour_rgb *colour_rgb_256; | |
diff -ur tmux-1.9a/input.c tmux-1.9a-24bit/input.c | |
--- tmux-1.9a/input.c 2014-02-22 15:48:37.000000000 -0500 | |
+++ tmux-1.9a-24bit/input.c 2014-09-13 21:26:15.000000000 -0400 | |
@@ -447,8 +447,7 @@ | |
{ 0x1c, 0x1f, input_c0_dispatch, NULL }, | |
{ 0x20, 0x2f, input_intermediate, &input_state_csi_intermediate }, | |
{ 0x30, 0x39, input_parameter, &input_state_csi_parameter }, | |
- { 0x3a, 0x3a, NULL, &input_state_csi_ignore }, | |
- { 0x3b, 0x3b, input_parameter, &input_state_csi_parameter }, | |
+ { 0x3a, 0x3b, input_parameter, &input_state_csi_parameter }, | |
{ 0x3c, 0x3f, input_intermediate, &input_state_csi_parameter }, | |
{ 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, | |
{ 0x7f, 0xff, NULL, NULL }, | |
@@ -465,8 +464,7 @@ | |
{ 0x1c, 0x1f, input_c0_dispatch, NULL }, | |
{ 0x20, 0x2f, input_intermediate, &input_state_csi_intermediate }, | |
{ 0x30, 0x39, input_parameter, NULL }, | |
- { 0x3a, 0x3a, NULL, &input_state_csi_ignore }, | |
- { 0x3b, 0x3b, input_parameter, NULL }, | |
+ { 0x3a, 0x3b, input_parameter, NULL }, | |
{ 0x3c, 0x3f, NULL, &input_state_csi_ignore }, | |
{ 0x40, 0x7e, input_csi_dispatch, &input_state_ground }, | |
{ 0x7f, 0xff, NULL, NULL }, | |
@@ -817,7 +815,7 @@ | |
return (0); | |
ptr = ictx->param_buf; | |
- while ((out = strsep(&ptr, ";")) != NULL) { | |
+ while ((out = strsep(&ptr, ":;")) != NULL) { | |
if (*out == '\0') | |
n = -1; | |
else { | |
@@ -1506,7 +1504,26 @@ | |
if (n == 38 || n == 48) { | |
i++; | |
- if (input_get(ictx, i, 0, -1) != 5) | |
+ m=input_get(ictx, i, 0, -1); | |
+ if (m == 2){ // 24bit? | |
+ u_char r, g, b; | |
+ r = input_get(ictx, i+1, 0, -1); | |
+ g = input_get(ictx, i+2, 0, -1); | |
+ b = input_get(ictx, i+3, 0, -1); | |
+ struct colour_rgb rgb = {.r=r, .g=g, .b=b}; | |
+ if (n == 38){ | |
+ gc->flags &= ~GRID_FLAG_FG256; | |
+ gc->flags |= GRID_FLAG_FG24; | |
+ gc->fg_rgb = rgb; | |
+ } else if (n == 48){ | |
+ gc->flags &= ~GRID_FLAG_BG256; | |
+ gc->flags |= GRID_FLAG_BG24; | |
+ gc->bg_rgb = rgb; | |
+ } | |
+ break; | |
+ } | |
+ | |
+ if (m != 5) | |
continue; | |
i++; | |
@@ -1514,18 +1531,22 @@ | |
if (m == -1) { | |
if (n == 38) { | |
gc->flags &= ~GRID_FLAG_FG256; | |
+ gc->flags &= ~GRID_FLAG_FG24; | |
gc->fg = 8; | |
} else if (n == 48) { | |
gc->flags &= ~GRID_FLAG_BG256; | |
+ gc->flags &= ~GRID_FLAG_BG24; | |
gc->bg = 8; | |
} | |
} else { | |
if (n == 38) { | |
gc->flags |= GRID_FLAG_FG256; | |
+ gc->flags &= ~GRID_FLAG_FG24; | |
gc->fg = m; | |
} else if (n == 48) { | |
gc->flags |= GRID_FLAG_BG256; | |
+ gc->flags &= ~GRID_FLAG_BG24; | |
gc->bg = m; | |
} | |
} | |
@@ -1584,10 +1605,12 @@ | |
case 36: | |
case 37: | |
gc->flags &= ~GRID_FLAG_FG256; | |
+ gc->flags &= ~GRID_FLAG_FG24; | |
gc->fg = n - 30; | |
break; | |
case 39: | |
gc->flags &= ~GRID_FLAG_FG256; | |
+ gc->flags &= ~GRID_FLAG_FG24; | |
gc->fg = 8; | |
break; | |
case 40: | |
@@ -1599,10 +1622,12 @@ | |
case 46: | |
case 47: | |
gc->flags &= ~GRID_FLAG_BG256; | |
+ gc->flags &= ~GRID_FLAG_BG24; | |
gc->bg = n - 40; | |
break; | |
case 49: | |
gc->flags &= ~GRID_FLAG_BG256; | |
+ gc->flags &= ~GRID_FLAG_BG24; | |
gc->bg = 8; | |
break; | |
case 90: | |
@@ -1625,6 +1650,7 @@ | |
case 106: | |
case 107: | |
gc->flags &= ~GRID_FLAG_BG256; | |
+ gc->flags &= ~GRID_FLAG_BG24; | |
gc->bg = n - 10; | |
break; | |
} | |
diff -ur tmux-1.9a/tmux.h tmux-1.9a-24bit/tmux.h | |
--- tmux-1.9a/tmux.h 2014-02-22 15:48:37.000000000 -0500 | |
+++ tmux-1.9a-24bit/tmux.h 2014-09-13 21:26:15.000000000 -0400 | |
@@ -675,10 +675,19 @@ | |
#define GRID_FLAG_FG256 0x1 | |
#define GRID_FLAG_BG256 0x2 | |
#define GRID_FLAG_PADDING 0x4 | |
+#define GRID_FLAG_FG24 0x8 | |
+#define GRID_FLAG_BG24 0x10 | |
/* Grid line flags. */ | |
#define GRID_LINE_WRAPPED 0x1 | |
+/* An RGB colour. */ | |
+struct colour_rgb { | |
+ u_char r; | |
+ u_char g; | |
+ u_char b; | |
+}; | |
+ | |
/* Grid cell data. */ | |
struct grid_cell { | |
u_char attr; | |
@@ -688,6 +697,8 @@ | |
u_char xstate; /* top 4 bits width, bottom 4 bits size */ | |
u_char xdata[UTF8_SIZE]; | |
+ struct colour_rgb fg_rgb; | |
+ struct colour_rgb bg_rgb; | |
} __packed; | |
/* Grid line. */ | |
diff -ur tmux-1.9a/tty.c tmux-1.9a-24bit/tty.c | |
--- tmux-1.9a/tty.c 2014-02-22 15:48:37.000000000 -0500 | |
+++ tmux-1.9a-24bit/tty.c 2014-09-13 21:26:15.000000000 -0400 | |
@@ -35,6 +35,7 @@ | |
void tty_error_callback(struct bufferevent *, short, void *); | |
int tty_try_256(struct tty *, u_char, const char *); | |
+int tty_try_24(struct tty *, struct colour_rgb, const char *); | |
void tty_colours(struct tty *, const struct grid_cell *); | |
void tty_check_fg(struct tty *, struct grid_cell *); | |
@@ -1378,14 +1379,23 @@ | |
void | |
tty_colours(struct tty *tty, const struct grid_cell *gc) | |
-{ | |
+{ | |
struct grid_cell *tc = &tty->cell; | |
u_char fg = gc->fg, bg = gc->bg, flags = gc->flags; | |
int have_ax, fg_default, bg_default; | |
/* No changes? Nothing is necessary. */ | |
if (fg == tc->fg && bg == tc->bg && | |
- ((flags ^ tc->flags) & (GRID_FLAG_FG256|GRID_FLAG_BG256)) == 0) | |
+ tc->fg_rgb.r == gc->fg_rgb.r && | |
+ tc->fg_rgb.g == gc->fg_rgb.g && | |
+ tc->fg_rgb.b == gc->fg_rgb.b && | |
+ | |
+ tc->bg_rgb.r == gc->bg_rgb.r && | |
+ tc->bg_rgb.g == gc->bg_rgb.g && | |
+ tc->bg_rgb.b == gc->bg_rgb.b && | |
+ ((flags ^ tc->flags) & (GRID_FLAG_FG256|GRID_FLAG_BG256|GRID_FLAG_FG24|GRID_FLAG_BG24)) == 0 | |
+ | |
+ ) | |
return; | |
/* | |
@@ -1394,8 +1404,8 @@ | |
* case if only one is default need to fall onward to set the other | |
* colour. | |
*/ | |
- fg_default = (fg == 8 && !(flags & GRID_FLAG_FG256)); | |
- bg_default = (bg == 8 && !(flags & GRID_FLAG_BG256)); | |
+ fg_default = (fg == 8 && !(flags & GRID_FLAG_FG256) && !(flags & GRID_FLAG_FG24)); | |
+ bg_default = (bg == 8 && !(flags & GRID_FLAG_BG256) && !(flags & GRID_FLAG_BG24)); | |
if (fg_default || bg_default) { | |
/* | |
* If don't have AX but do have op, send sgr0 (op can't | |
@@ -1409,39 +1419,49 @@ | |
tty_reset(tty); | |
else { | |
if (fg_default && | |
- (tc->fg != 8 || tc->flags & GRID_FLAG_FG256)) { | |
+ (tc->fg != 8 || tc->flags & GRID_FLAG_FG256 || tc->flags & GRID_FLAG_FG24)) { | |
if (have_ax) | |
tty_puts(tty, "\033[39m"); | |
else if (tc->fg != 7 || | |
- tc->flags & GRID_FLAG_FG256) | |
+ tc->flags & GRID_FLAG_FG256 || | |
+ tc->flags & GRID_FLAG_FG24) | |
tty_putcode1(tty, TTYC_SETAF, 7); | |
tc->fg = 8; | |
tc->flags &= ~GRID_FLAG_FG256; | |
+ tc->flags &= ~GRID_FLAG_FG24; | |
} | |
if (bg_default && | |
- (tc->bg != 8 || tc->flags & GRID_FLAG_BG256)) { | |
+ (tc->bg != 8 || tc->flags & GRID_FLAG_BG256 || tc->flags & GRID_FLAG_BG24)) { | |
if (have_ax) | |
tty_puts(tty, "\033[49m"); | |
else if (tc->bg != 0 || | |
- tc->flags & GRID_FLAG_BG256) | |
+ tc->flags & GRID_FLAG_BG256 || | |
+ tc->flags & GRID_FLAG_BG24) | |
tty_putcode1(tty, TTYC_SETAB, 0); | |
tc->bg = 8; | |
tc->flags &= ~GRID_FLAG_BG256; | |
+ tc->flags &= ~GRID_FLAG_BG24; | |
} | |
} | |
} | |
/* Set the foreground colour. */ | |
- if (!fg_default && (fg != tc->fg || | |
- ((flags & GRID_FLAG_FG256) != (tc->flags & GRID_FLAG_FG256)))) | |
+ if (!fg_default && (fg != tc->fg || ((flags & GRID_FLAG_FG256) != (tc->flags & GRID_FLAG_FG256)) || | |
+ ( | |
+ ( tc->fg_rgb.r!=gc->fg_rgb.r || tc->fg_rgb.g!=gc->fg_rgb.g || tc->fg_rgb.b!=gc->fg_rgb.b ) || | |
+ ((flags & GRID_FLAG_FG24) != (tc->flags & GRID_FLAG_FG24)) | |
+ ))) | |
tty_colours_fg(tty, gc); | |
/* | |
* Set the background colour. This must come after the foreground as | |
* tty_colour_fg() can call tty_reset(). | |
*/ | |
- if (!bg_default && (bg != tc->bg || | |
- ((flags & GRID_FLAG_BG256) != (tc->flags & GRID_FLAG_BG256)))) | |
+ if (!bg_default && (bg != tc->bg || ((flags & GRID_FLAG_BG256) != (tc->flags & GRID_FLAG_BG256)) || | |
+ ( | |
+ ( tc->bg_rgb.r!=gc->bg_rgb.r || tc->bg_rgb.g!=gc->bg_rgb.g || tc->bg_rgb.b!=gc->bg_rgb.b ) || | |
+ ((flags & GRID_FLAG_BG24) != (tc->flags & GRID_FLAG_BG24)) | |
+ ))) | |
tty_colours_bg(tty, gc); | |
} | |
@@ -1451,7 +1471,7 @@ | |
u_int colours; | |
/* Is this a 256-colour colour? */ | |
- if (gc->flags & GRID_FLAG_FG256) { | |
+ if (gc->flags & GRID_FLAG_FG256 && !(gc->flags & GRID_FLAG_BG24)) { | |
/* And not a 256 colour mode? */ | |
if (!(tty->term->flags & TERM_256COLOURS) && | |
!(tty->term_flags & TERM_256COLOURS)) { | |
@@ -1480,7 +1500,7 @@ | |
u_int colours; | |
/* Is this a 256-colour colour? */ | |
- if (gc->flags & GRID_FLAG_BG256) { | |
+ if (gc->flags & GRID_FLAG_BG256 && !(gc->flags & GRID_FLAG_BG24)) { | |
/* | |
* And not a 256 colour mode? Translate to 16-colour | |
* palette. Bold background doesn't exist portably, so just | |
@@ -1509,15 +1529,29 @@ | |
tty_colours_fg(struct tty *tty, const struct grid_cell *gc) | |
{ | |
struct grid_cell *tc = &tty->cell; | |
+ struct colour_rgb rgb= gc->fg_rgb; | |
u_char fg = gc->fg; | |
char s[32]; | |
+ tc->flags &= ~GRID_FLAG_FG256; | |
+ tc->flags &= ~GRID_FLAG_FG24; | |
+ | |
+ /* Is this a 24-colour colour? */ | |
+ if (gc->flags & GRID_FLAG_FG24) { | |
+//log_debug("trying to output 24bit fg"); | |
+ if (tty_try_24(tty, rgb, "38") == 0){ | |
+ tc->fg_rgb = rgb; | |
+ tc->flags |= gc->flags & GRID_FLAG_FG24; | |
+ } | |
+ return; | |
+ } | |
+ | |
/* Is this a 256-colour colour? */ | |
if (gc->flags & GRID_FLAG_FG256) { | |
- /* Try as 256 colours. */ | |
- if (tty_try_256(tty, fg, "38") == 0) | |
- goto save_fg; | |
- /* Else already handled by tty_check_fg. */ | |
+ if (tty_try_256(tty, fg, "38") == 0){ | |
+ tc->fg = fg; | |
+ tc->flags |= gc->flags & GRID_FLAG_FG256; | |
+ } | |
return; | |
} | |
@@ -1525,32 +1559,41 @@ | |
if (fg >= 90 && fg <= 97) { | |
xsnprintf(s, sizeof s, "\033[%dm", fg); | |
tty_puts(tty, s); | |
- goto save_fg; | |
+ tc->fg = fg; | |
+ return; | |
} | |
/* Otherwise set the foreground colour. */ | |
tty_putcode1(tty, TTYC_SETAF, fg); | |
- | |
-save_fg: | |
- /* Save the new values in the terminal current cell. */ | |
tc->fg = fg; | |
- tc->flags &= ~GRID_FLAG_FG256; | |
- tc->flags |= gc->flags & GRID_FLAG_FG256; | |
} | |
void | |
tty_colours_bg(struct tty *tty, const struct grid_cell *gc) | |
{ | |
struct grid_cell *tc = &tty->cell; | |
+ struct colour_rgb rgb= gc->bg_rgb; | |
u_char bg = gc->bg; | |
char s[32]; | |
+ tc->flags &= ~GRID_FLAG_BG256; | |
+ tc->flags &= ~GRID_FLAG_BG24; | |
+ | |
+ /* Is this a 24-colour colour? */ | |
+ if (gc->flags & GRID_FLAG_BG24) { | |
+ if (tty_try_24(tty, rgb, "48") == 0){ | |
+ tc->bg_rgb = rgb; | |
+ tc->flags |= gc->flags & GRID_FLAG_BG24; | |
+ } | |
+ return; | |
+ } | |
+ | |
/* Is this a 256-colour colour? */ | |
if (gc->flags & GRID_FLAG_BG256) { | |
- /* Try as 256 colours. */ | |
- if (tty_try_256(tty, bg, "48") == 0) | |
- goto save_bg; | |
- /* Else already handled by tty_check_bg. */ | |
+ if (tty_try_256(tty, bg, "48") == 0){ | |
+ tc->bg = bg; | |
+ tc->flags |= gc->flags & GRID_FLAG_BG256; | |
+ } | |
return; | |
} | |
@@ -1560,20 +1603,16 @@ | |
if (tty_term_number(tty->term, TTYC_COLORS) >= 16) { | |
xsnprintf(s, sizeof s, "\033[%dm", bg + 10); | |
tty_puts(tty, s); | |
- goto save_bg; | |
+ tc->bg = bg; | |
} | |
bg -= 90; | |
+ return; | |
/* no such thing as a bold background */ | |
} | |
/* Otherwise set the background colour. */ | |
tty_putcode1(tty, TTYC_SETAB, bg); | |
- | |
-save_bg: | |
- /* Save the new values in the terminal current cell. */ | |
tc->bg = bg; | |
- tc->flags &= ~GRID_FLAG_BG256; | |
- tc->flags |= gc->flags & GRID_FLAG_BG256; | |
} | |
int | |
@@ -1606,6 +1645,23 @@ | |
return (-1); | |
} | |
+ | |
+int | |
+tty_try_24(struct tty *tty, struct colour_rgb rgb, const char *type) | |
+{ | |
+ char s[32]; | |
+ | |
+ //if (!(tty->term->flags & TERM_256COLOURS) && | |
+ // !(tty->term_flags & TERM_256COLOURS)) | |
+ // return (-1); | |
+ | |
+ //xsnprintf(s, sizeof s, "\033[%s;5;%hhum", type, colour); | |
+ xsnprintf(s, sizeof s, "\033[%s;2;%hhu;%hhu;%hhum", type, rgb.r, rgb.g, rgb.b); | |
+//log_debug("24bit output: %s",s); | |
+ tty_puts(tty, s); | |
+ return (0); | |
+} | |
+ | |
void | |
tty_bell(struct tty *tty) | |
{ |
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@choppsv1
Compatible tmux HEAD.
https://gist.github.com/zchee/9f6f2ca17acf49e04088