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7f6153d956
Latest Terminfo introduces terminal definitions that support direct color mode. The "Co"/"colors" capability is set to 0x1000000 on these terminals and Emacs is already compatible with them. However, if used Terminfo library hasn't been compiled with 32-bit value support, "Co"/"colors" is truncated to 0x7fff. In this case direct color mode support can be detected from the "RGB" capability flag. There are some minor problems if the color count isn't corrected from 0x7fff. First eight standard colors defined in xterm-standard-colors are shown correctly. However, their RGB values match the terminal settings, not the RGB values defined in xterm-standard-colors. Bright versions of these colors are shown incorrectly. They are interpreted as pixels #000008 - #000015, which are very dark shades of blue. * src/term.c (init_tty): Force terminal color count to 0x1000000 if "RGB" capability is present. * src/tparam.h: Define prototype for tigetflag. (Bug#30308) * doc/misc/efaq.texi (Colors on a TTY): Add information about direct mode terminals supported by Terminfo.
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/* Interface definitions for termcap entries.
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Copyright (C) 2011-2018 Free Software Foundation, Inc.
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This file is part of GNU Emacs.
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GNU Emacs is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or (at
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your option) any later version.
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GNU Emacs is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef EMACS_TPARAM_H
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#define EMACS_TPARAM_H
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/* Don't try to include termcap.h. On some systems, configure finds a
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non-standard termcap.h that the main build won't find. */
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void tputs (const char *, int, int (*) (int));
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int tgetent (char *, const char *);
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int tgetflag (const char *);
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int tgetnum (const char *);
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char *tgetstr (const char *, char **);
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char *tgoto (const char *, int, int);
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char *tparam (const char *, char *, int, int, int, int, int);
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extern char PC;
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extern char *BC;
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extern char *UP;
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#ifdef TERMINFO
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int tigetflag (const char *);
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char *tigetstr (const char *);
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#endif
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#endif /* EMACS_TPARAM_H */
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