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* [newlib-cygwin] Cygwin: console: support 24 bit color
@ 2019-03-31 17:41 Corinna Vinschen
0 siblings, 0 replies; only message in thread
From: Corinna Vinschen @ 2019-03-31 17:41 UTC (permalink / raw)
To: cygwin-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=bd627864ab4189984cdb0892c00f91e39c4e8243
commit bd627864ab4189984cdb0892c00f91e39c4e8243
Author: Takashi Yano <takashi.yano@nifty.ne.jp>
Date: Mon Apr 1 00:47:46 2019 +0900
Cygwin: console: support 24 bit color
- Add 24 bit color support using xterm compatibility mode in
Windows 10 1703 or later.
- Add fake 24 bit color support for legacy console, which uses
the nearest color from 16 system colors.
Diff:
---
winsup/cygwin/environ.cc | 7 +-
winsup/cygwin/fhandler.h | 4 +
winsup/cygwin/fhandler_console.cc | 230 ++++++++++++++++++++++++++++++++------
winsup/cygwin/select.cc | 8 ++
winsup/cygwin/wincap.cc | 10 ++
winsup/cygwin/wincap.h | 2 +
6 files changed, 227 insertions(+), 34 deletions(-)
diff --git a/winsup/cygwin/environ.cc b/winsup/cygwin/environ.cc
index 21f1373..a47ed72 100644
--- a/winsup/cygwin/environ.cc
+++ b/winsup/cygwin/environ.cc
@@ -869,7 +869,8 @@ win32env_to_cygenv (PWCHAR rawenv, bool posify)
char *newp;
int i;
int sawTERM = 0;
- static char NO_COPY cygterm[] = "TERM=cygwin";
+ const char cygterm[] = "TERM=cygwin";
+ const char xterm[] = "TERM=xterm-256color";
char *tmpbuf = tp.t_get ();
PWCHAR w;
@@ -899,8 +900,10 @@ win32env_to_cygenv (PWCHAR rawenv, bool posify)
debug_printf ("%p: %s", envp[i], envp[i]);
}
+ /* If console has 24 bit color capability, TERM=xterm-256color,
+ otherwise, TERM=cygwin */
if (!sawTERM)
- envp[i++] = strdup (cygterm);
+ envp[i++] = strdup (wincap.has_con_24bit_colors () ? xterm : cygterm);
envp[i] = NULL;
return envp;
diff --git a/winsup/cygwin/fhandler.h b/winsup/cygwin/fhandler.h
index b336eb6..66e724b 100644
--- a/winsup/cygwin/fhandler.h
+++ b/winsup/cygwin/fhandler.h
@@ -1778,6 +1778,8 @@ enum ansi_intensity
#define eattitle 7
#define gotparen 8
#define gotrparen 9
+#define eatpalette 10
+#define endpalette 11
#define MAXARGS 10
enum cltype
@@ -1791,6 +1793,8 @@ enum cltype
class dev_console
{
+ pid_t owner;
+
WORD default_color, underline_color, dim_color;
/* Used to determine if an input keystroke should be modified with META. */
diff --git a/winsup/cygwin/fhandler_console.cc b/winsup/cygwin/fhandler_console.cc
index 281c200..6b14d4a 100644
--- a/winsup/cygwin/fhandler_console.cc
+++ b/winsup/cygwin/fhandler_console.cc
@@ -15,6 +15,7 @@ details. */
#include <sys/param.h>
#include <sys/cygwin.h>
#include <cygwin/kd.h>
+#include <unistd.h>
#include "cygerrno.h"
#include "security.h"
#include "path.h"
@@ -32,6 +33,17 @@ details. */
#include "child_info.h"
#include "cygwait.h"
+/* Not yet defined in Mingw-w64 */
+#ifndef ENABLE_VIRTUAL_TERMINAL_PROCESSING
+#define ENABLE_VIRTUAL_TERMINAL_PROCESSING 0x0004
+#endif /* ENABLE_VIRTUAL_TERMINAL_PROCESSING */
+#ifndef DISABLE_NEWLINE_AUTO_RETURN
+#define DISABLE_NEWLINE_AUTO_RETURN 0x0008
+#endif /* DISABLE_NEWLINE_AUTO_RETURN */
+#ifndef ENABLE_VIRTUAL_TERMINAL_INPUT
+#define ENABLE_VIRTUAL_TERMINAL_INPUT 0x0200
+#endif /* ENABLE_VIRTUAL_TERMINAL_INPUT */
+
/* Don't make this bigger than NT_MAX_PATH as long as the temporary buffer
is allocated using tmp_pathbuf!!! */
#define CONVERT_LIMIT NT_MAX_PATH
@@ -148,7 +160,11 @@ fhandler_console::set_unit ()
if (created)
shared_console_info->tty_min_state.setntty (DEV_CONS_MAJOR, console_unit (me));
devset = (fh_devices) shared_console_info->tty_min_state.getntty ();
+ if (created)
+ con.owner = getpid ();
}
+ if (!created && shared_console_info && kill (con.owner, 0) == -1)
+ con.owner = getpid ();
dev ().parse (devset);
if (devset != FH_ERROR)
@@ -167,33 +183,33 @@ void
fhandler_console::setup ()
{
if (set_unit ())
- {
- con.scroll_region.Bottom = -1;
- con.dwLastCursorPosition.X = -1;
- con.dwLastCursorPosition.Y = -1;
- con.dwLastMousePosition.X = -1;
- con.dwLastMousePosition.Y = -1;
- con.dwLastButtonState = 0; /* none pressed */
- con.last_button_code = 3; /* released */
- con.underline_color = FOREGROUND_GREEN | FOREGROUND_BLUE;
- con.dim_color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
- con.meta_mask = LEFT_ALT_PRESSED;
- /* Set the mask that determines if an input keystroke is modified by
- META. We set this based on the keyboard layout language loaded
- for the current thread. The left <ALT> key always generates
- META, but the right <ALT> key only generates META if we are using
- an English keyboard because many "international" keyboards
- replace common shell symbols ('[', '{', etc.) with accented
- language-specific characters (umlaut, accent grave, etc.). On
- these keyboards right <ALT> (called AltGr) is used to produce the
- shell symbols and should not be interpreted as META. */
- if (PRIMARYLANGID (LOWORD (GetKeyboardLayout (0))) == LANG_ENGLISH)
- con.meta_mask |= RIGHT_ALT_PRESSED;
- con.set_default_attr ();
- con.backspace_keycode = CERASE;
- con.cons_rapoi = NULL;
- shared_console_info->tty_min_state.is_console = true;
- }
+ {
+ con.scroll_region.Bottom = -1;
+ con.dwLastCursorPosition.X = -1;
+ con.dwLastCursorPosition.Y = -1;
+ con.dwLastMousePosition.X = -1;
+ con.dwLastMousePosition.Y = -1;
+ con.dwLastButtonState = 0; /* none pressed */
+ con.last_button_code = 3; /* released */
+ con.underline_color = FOREGROUND_GREEN | FOREGROUND_BLUE;
+ con.dim_color = FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE;
+ con.meta_mask = LEFT_ALT_PRESSED;
+ /* Set the mask that determines if an input keystroke is modified by
+ META. We set this based on the keyboard layout language loaded
+ for the current thread. The left <ALT> key always generates
+ META, but the right <ALT> key only generates META if we are using
+ an English keyboard because many "international" keyboards
+ replace common shell symbols ('[', '{', etc.) with accented
+ language-specific characters (umlaut, accent grave, etc.). On
+ these keyboards right <ALT> (called AltGr) is used to produce the
+ shell symbols and should not be interpreted as META. */
+ if (PRIMARYLANGID (LOWORD (GetKeyboardLayout (0))) == LANG_ENGLISH)
+ con.meta_mask |= RIGHT_ALT_PRESSED;
+ con.set_default_attr ();
+ con.backspace_keycode = CERASE;
+ con.cons_rapoi = NULL;
+ shared_console_info->tty_min_state.is_console = true;
+ }
}
/* Return the tty structure associated with a given tty number. If the
@@ -435,7 +451,8 @@ fhandler_console::read (void *pv, size_t& buflen)
toadd = tmp;
}
/* Allow Ctrl-Space to emit ^@ */
- else if (input_rec.Event.KeyEvent.wVirtualKeyCode == VK_SPACE
+ else if (input_rec.Event.KeyEvent.wVirtualKeyCode
+ == (wincap.has_con_24bit_colors () ? '2' : VK_SPACE)
&& (ctrl_key_state & CTRL_PRESSED)
&& !(ctrl_key_state & ALT_PRESSED))
toadd = "";
@@ -855,10 +872,24 @@ fhandler_console::open (int flags, mode_t)
get_ttyp ()->rstcons (false);
set_open_status ();
+ if (getpid () == con.owner && wincap.has_con_24bit_colors ())
+ {
+ DWORD dwMode;
+ /* Enable xterm compatible mode in output */
+ GetConsoleMode (get_output_handle (), &dwMode);
+ dwMode |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+ SetConsoleMode (get_output_handle (), dwMode);
+ /* Enable xterm compatible mode in input */
+ GetConsoleMode (get_handle (), &dwMode);
+ dwMode |= ENABLE_VIRTUAL_TERMINAL_INPUT;
+ SetConsoleMode (get_handle (), dwMode);
+ }
+
DWORD cflags;
if (GetConsoleMode (get_handle (), &cflags))
- SetConsoleMode (get_handle (),
- ENABLE_WINDOW_INPUT | ENABLE_MOUSE_INPUT | cflags);
+ SetConsoleMode (get_handle (), ENABLE_WINDOW_INPUT
+ | (wincap.has_con_24bit_colors () ? 0 : ENABLE_MOUSE_INPUT)
+ | cflags);
debug_printf ("opened conin$ %p, conout$ %p", get_handle (),
get_output_handle ());
@@ -878,6 +909,22 @@ fhandler_console::open_setup (int flags)
int
fhandler_console::close ()
{
+ debug_printf ("closing: %p, %p", get_handle (), get_output_handle ());
+
+ if (shared_console_info && getpid () == con.owner &&
+ wincap.has_con_24bit_colors ())
+ {
+ DWORD dwMode;
+ /* Disable xterm compatible mode in input */
+ GetConsoleMode (get_handle (), &dwMode);
+ dwMode &= ~ENABLE_VIRTUAL_TERMINAL_INPUT;
+ SetConsoleMode (get_handle (), dwMode);
+ /* Disable xterm compatible mode in output */
+ GetConsoleMode (get_output_handle (), &dwMode);
+ dwMode &= ~ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+ SetConsoleMode (get_output_handle (), dwMode);
+ }
+
CloseHandle (get_handle ());
CloseHandle (get_output_handle ());
if (!have_execed)
@@ -987,6 +1034,13 @@ fhandler_console::output_tcsetattr (int, struct termios const *t)
/* All the output bits we can ignore */
DWORD flags = ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT;
+ /* If system has 24 bit color capability, use xterm compatible mode. */
+ if (wincap.has_con_24bit_colors ())
+ {
+ flags |= ENABLE_VIRTUAL_TERMINAL_PROCESSING;
+ if (!(t->c_oflag & OPOST) || !(t->c_oflag & ONLCR))
+ flags |= DISABLE_NEWLINE_AUTO_RETURN;
+ }
int res = SetConsoleMode (get_output_handle (), flags) ? 0 : -1;
if (res)
@@ -1043,7 +1097,11 @@ fhandler_console::input_tcsetattr (int, struct termios const *t)
flags |= ENABLE_PROCESSED_INPUT;
}
- flags |= ENABLE_WINDOW_INPUT | ENABLE_MOUSE_INPUT;
+ flags |= ENABLE_WINDOW_INPUT |
+ (wincap.has_con_24bit_colors () ? 0 : ENABLE_MOUSE_INPUT);
+ /* if system has 24 bit color capability, use xterm compatible mode. */
+ if (wincap.has_con_24bit_colors ())
+ flags |= ENABLE_VIRTUAL_TERMINAL_INPUT;
int res;
if (flags == oflags)
@@ -1602,11 +1660,32 @@ static const char base_chars[256] =
/*F0 F1 F2 F3 F4 F5 F6 F7 */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR,
/*F8 F9 FA FB FC FD FE FF */ NOR, NOR, NOR, NOR, NOR, NOR, NOR, NOR };
+static const char table256[256] =
+{
+ 0, 4, 2, 6, 1, 5, 3, 7, 8,12,10,14, 9,13,11,15,
+ 0, 1, 1, 1, 9, 9, 2, 3, 3, 3, 3, 9, 2, 3, 3, 3,
+ 3,11, 2, 3, 3, 3,11,11,10, 3, 3,11,11,11,10,10,
+ 11,11,11,11, 4, 5, 5, 5, 5, 9, 6, 8, 8, 8, 8, 9,
+ 6, 8, 8, 8, 8, 7, 6, 8, 8, 8, 7, 7, 6, 8, 8, 7,
+ 7,11,10,10, 7, 7,11,11, 4, 5, 5, 5, 5,13, 6, 8,
+ 8, 8, 8, 7, 6, 8, 8, 8, 7, 7, 6, 8, 8, 7, 7, 7,
+ 6, 8, 7, 7, 7, 7,14, 7, 7, 7, 7, 7, 4, 5, 5, 5,
+ 13,13, 6, 8, 8, 8, 7, 7, 6, 8, 8, 7, 7, 7, 6, 8,
+ 7, 7, 7, 7,14, 7, 7, 7, 7, 7,14, 7, 7, 7, 7,15,
+ 12, 5, 5,13,13,13, 6, 8, 8, 7, 7,13, 6, 8, 7, 7,
+ 7, 7,14, 7, 7, 7, 7, 7,14, 7, 7, 7, 7,15,14,14,
+ 7, 7,15,15,12,12,13,13,13,13,12,12, 7, 7,13,13,
+ 14, 7, 7, 7, 7, 7,14, 7, 7, 7, 7,15,14,14, 7, 7,
+ 15,15,14,14, 7,15,15,15, 0, 0, 0, 0, 0, 0, 8, 8,
+ 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7,15,15
+};
+
void
fhandler_console::char_command (char c)
{
int x, y, n;
char buf[40];
+ int r, g, b;
switch (c)
{
@@ -1678,6 +1757,40 @@ fhandler_console::char_command (char c)
case 37: /* WHITE foreg */
con.fg = FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED;
break;
+ case 38:
+ if (con.nargs < 1)
+ /* Sequence error (abort) */
+ break;
+ switch (con.args[1])
+ {
+ case 2:
+ if (con.nargs != 4)
+ /* Sequence error (abort) */
+ break;
+ r = con.args[2];
+ g = con.args[3];
+ b = con.args[4];
+ r = r < (95 + 1) / 2 ? 0 : r > 255 ? 5 : (r - 55 + 20) / 40;
+ g = g < (95 + 1) / 2 ? 0 : g > 255 ? 5 : (g - 55 + 20) / 40;
+ b = b < (95 + 1) / 2 ? 0 : b > 255 ? 5 : (b - 55 + 20) / 40;
+ con.fg = table256[16 + r*36 + g*6 + b];
+ break;
+ case 5:
+ if (con.nargs != 2)
+ /* Sequence error (abort) */
+ break;
+ {
+ int idx = con.args[2];
+ if (idx < 0)
+ idx = 0;
+ if (idx > 255)
+ idx = 255;
+ con.fg = table256[idx];
+ }
+ break;
+ }
+ i += con.nargs;
+ break;
case 39:
con.fg = con.default_color & FOREGROUND_ATTR_MASK;
break;
@@ -1705,6 +1818,40 @@ fhandler_console::char_command (char c)
case 47: /* WHITE background */
con.bg = BACKGROUND_BLUE | BACKGROUND_GREEN | BACKGROUND_RED;
break;
+ case 48:
+ if (con.nargs < 1)
+ /* Sequence error (abort) */
+ break;
+ switch (con.args[1])
+ {
+ case 2:
+ if (con.nargs != 4)
+ /* Sequence error (abort) */
+ break;
+ r = con.args[2];
+ g = con.args[3];
+ b = con.args[4];
+ r = r < (95 + 1) / 2 ? 0 : r > 255 ? 5 : (r - 55 + 20) / 40;
+ g = g < (95 + 1) / 2 ? 0 : g > 255 ? 5 : (g - 55 + 20) / 40;
+ b = b < (95 + 1) / 2 ? 0 : b > 255 ? 5 : (b - 55 + 20) / 40;
+ con.bg = table256[16 + r*36 + g*6 + b] << 4;
+ break;
+ case 5:
+ if (con.nargs != 2)
+ /* Sequence error (abort) */
+ break;
+ {
+ int idx = con.args[2];
+ if (idx < 0)
+ idx = 0;
+ if (idx > 255)
+ idx = 255;
+ con.bg = table256[idx] << 4;
+ }
+ break;
+ }
+ i += con.nargs;
+ break;
case 49:
con.bg = con.default_color & BACKGROUND_ATTR_MASK;
break;
@@ -2143,10 +2290,12 @@ fhandler_console::write_normal (const unsigned char *src,
/* Loop over src buffer as long as we have just simple characters. Stop
as soon as we reach the conversion limit, or if we encounter a control
character or a truncated or invalid mutibyte sequence. */
+ /* If system has 24 bit color capability, just write all control
+ sequences to console since xterm compatible mode is enabled. */
memset (&ps, 0, sizeof ps);
while (found < end
&& found - src < CONVERT_LIMIT
- && base_chars[*found] == NOR)
+ && (wincap.has_con_24bit_colors () || base_chars[*found] == NOR) )
{
switch (ret = f_mbtowc (_REENT, NULL, (const char *) found,
end - found, &ps))
@@ -2394,6 +2543,8 @@ fhandler_console::write (const void *vsrc, size_t len)
con.rarg = con.rarg * 10 + (*src - '0');
else if (*src == ';' && (con.rarg == 2 || con.rarg == 0))
con.state = gettitle;
+ else if (*src == ';' && (con.rarg == 4 || con.rarg == 104))
+ con.state = eatpalette;
else
con.state = eattitle;
src++;
@@ -2416,6 +2567,21 @@ fhandler_console::write (const void *vsrc, size_t len)
src++;
break;
}
+ case eatpalette:
+ if (*src == '\033')
+ con.state = endpalette;
+ else if (*src == '\a')
+ con.state = normal;
+ src++;
+ break;
+ case endpalette:
+ if (*src == '\\')
+ con.state = normal;
+ else
+ /* Sequence error (abort) */
+ con.state = normal;
+ src++;
+ break;
case gotsquare:
if (*src == ';')
{
diff --git a/winsup/cygwin/select.cc b/winsup/cygwin/select.cc
index 9b18e8f..28adcf3 100644
--- a/winsup/cygwin/select.cc
+++ b/winsup/cygwin/select.cc
@@ -1053,6 +1053,14 @@ peek_console (select_record *me, bool)
else if (irec.Event.KeyEvent.uChar.UnicodeChar
|| fhandler_console::get_nonascii_key (irec, tmpbuf))
return me->read_ready = true;
+ /* Allow Ctrl-Space for ^@ */
+ else if ( (irec.Event.KeyEvent.wVirtualKeyCode == VK_SPACE
+ || irec.Event.KeyEvent.wVirtualKeyCode == '2')
+ && (irec.Event.KeyEvent.dwControlKeyState &
+ (LEFT_CTRL_PRESSED | RIGHT_CTRL_PRESSED))
+ && !(irec.Event.KeyEvent.dwControlKeyState
+ & (LEFT_ALT_PRESSED | RIGHT_ALT_PRESSED)) )
+ return me->read_ready = true;
}
/* Ignore key up events, except for Alt+Numpad events. */
else if (is_alt_numpad_event (&irec))
diff --git a/winsup/cygwin/wincap.cc b/winsup/cygwin/wincap.cc
index 5bc9c37..86dc631 100644
--- a/winsup/cygwin/wincap.cc
+++ b/winsup/cygwin/wincap.cc
@@ -40,6 +40,7 @@ wincaps wincap_vista __attribute__((section (".cygwin_dll_common"), shared)) = {
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:true,
+ has_con_24bit_colors:false,
},
};
@@ -65,6 +66,7 @@ wincaps wincap_7 __attribute__((section (".cygwin_dll_common"), shared)) = {
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:true,
+ has_con_24bit_colors:false,
},
};
@@ -90,6 +92,7 @@ wincaps wincap_8 __attribute__((section (".cygwin_dll_common"), shared)) = {
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
+ has_con_24bit_colors:false,
},
};
@@ -115,6 +118,7 @@ wincaps wincap_8_1 __attribute__((section (".cygwin_dll_common"), shared)) = {
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
+ has_con_24bit_colors:false,
},
};
@@ -140,6 +144,7 @@ wincaps wincap_10_1507 __attribute__((section (".cygwin_dll_common"), shared))
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
+ has_con_24bit_colors:false,
},
};
@@ -165,6 +170,7 @@ wincaps wincap_10_1511 __attribute__((section (".cygwin_dll_common"), shared)) =
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
+ has_con_24bit_colors:false,
},
};
@@ -190,6 +196,7 @@ wincaps wincap_10_1703 __attribute__((section (".cygwin_dll_common"), shared)) =
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
+ has_con_24bit_colors:true,
},
};
@@ -215,6 +222,7 @@ wincaps wincap_10_1709 __attribute__((section (".cygwin_dll_common"), shared)) =
has_case_sensitive_dirs:false,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
+ has_con_24bit_colors:true,
},
};
@@ -240,6 +248,7 @@ wincaps wincap_10_1803 __attribute__((section (".cygwin_dll_common"), shared)) =
has_case_sensitive_dirs:true,
has_posix_rename_semantics:false,
no_msv1_0_s4u_logon_in_wow64:false,
+ has_con_24bit_colors:true,
},
};
@@ -265,6 +274,7 @@ wincaps wincap_10_1809 __attribute__((section (".cygwin_dll_common"), shared)) =
has_case_sensitive_dirs:true,
has_posix_rename_semantics:true,
no_msv1_0_s4u_logon_in_wow64:false,
+ has_con_24bit_colors:true,
},
};
diff --git a/winsup/cygwin/wincap.h b/winsup/cygwin/wincap.h
index 0e83f67..73b6f5f 100644
--- a/winsup/cygwin/wincap.h
+++ b/winsup/cygwin/wincap.h
@@ -34,6 +34,7 @@ struct wincaps
unsigned has_case_sensitive_dirs : 1;
unsigned has_posix_rename_semantics : 1;
unsigned no_msv1_0_s4u_logon_in_wow64 : 1;
+ unsigned has_con_24bit_colors : 1;
};
};
@@ -89,6 +90,7 @@ public:
bool IMPLEMENT (has_case_sensitive_dirs)
bool IMPLEMENT (has_posix_rename_semantics)
bool IMPLEMENT (no_msv1_0_s4u_logon_in_wow64)
+ bool IMPLEMENT (has_con_24bit_colors)
void disable_case_sensitive_dirs ()
{
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