mpv/core/mp_msg.c

328 lines
9.6 KiB
C

/*
* This file is part of MPlayer.
*
* MPlayer 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; either version 2 of the License, or
* (at your option) any later version.
*
* MPlayer 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 MPlayer; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include "config.h"
#include "osdep/getch2.h"
#include "osdep/io.h"
#ifdef CONFIG_GETTEXT
#include <locale.h>
#include <libintl.h>
#endif
#ifndef __MINGW32__
#include <signal.h>
#endif
#include "core/mp_msg.h"
/* maximum message length of mp_msg */
#define MSGSIZE_MAX 6144
#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <io.h>
#define hSTDOUT GetStdHandle(STD_OUTPUT_HANDLE)
#define hSTDERR GetStdHandle(STD_ERROR_HANDLE)
static short stdoutAttrs = 0;
static const unsigned char ansi2win32[10] = {
0,
FOREGROUND_RED,
FOREGROUND_GREEN,
FOREGROUND_GREEN | FOREGROUND_RED,
FOREGROUND_BLUE,
FOREGROUND_BLUE | FOREGROUND_RED,
FOREGROUND_BLUE | FOREGROUND_GREEN,
FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED,
FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED,
FOREGROUND_BLUE | FOREGROUND_GREEN | FOREGROUND_RED
};
#endif
int mp_msg_levels[MSGT_MAX]; // verbose level of this module. initialized to -2
int mp_msg_level_all = MSGL_STATUS;
int verbose = 0;
int mp_msg_color = 1;
int mp_msg_module = 0;
int mp_msg_cancolor = 0;
static int mp_msg_docolor(void) {
return mp_msg_cancolor && mp_msg_color;
}
void mp_msg_init(void){
#ifdef _WIN32
CONSOLE_SCREEN_BUFFER_INFO cinfo;
long cmode = 0;
GetConsoleMode(hSTDOUT, &cmode);
cmode |= (ENABLE_PROCESSED_OUTPUT | ENABLE_WRAP_AT_EOL_OUTPUT);
SetConsoleMode(hSTDOUT, cmode);
SetConsoleMode(hSTDERR, cmode);
GetConsoleScreenBufferInfo(hSTDOUT, &cinfo);
stdoutAttrs = cinfo.wAttributes;
#endif
#ifndef __MINGW32__
struct sigaction sa;
sa.sa_handler = SIG_IGN;
sa.sa_flags = 0;
sigemptyset(&sa.sa_mask);
sigaction(SIGTTOU, &sa, NULL); // just write to stdout if you have to
#endif
int i;
char *env = getenv("MPV_VERBOSE");
if (env)
verbose = atoi(env);
for(i=0;i<MSGT_MAX;i++) mp_msg_levels[i] = -2;
mp_msg_cancolor = isatty(fileno(stdout));
mp_msg_levels[MSGT_IDENTIFY] = -1; // no -identify output by default
#ifdef CONFIG_GETTEXT
textdomain("mpv");
char *localedir = getenv("MPV_LOCALEDIR");
if (localedir == NULL && strlen(MPLAYER_LOCALEDIR))
localedir = MPLAYER_LOCALEDIR;
bindtextdomain("mpv", localedir);
bind_textdomain_codeset("mpv", "UTF-8");
#endif
}
int mp_msg_test(int mod, int lev)
{
#ifndef __MINGW32__
if (lev == MSGL_STATUS) {
// skip status line output if stderr is a tty but in background
if (isatty(2) && tcgetpgrp(2) != getpgrp())
return false;
}
#endif
return lev <= (mp_msg_levels[mod] == -2 ? mp_msg_level_all + verbose : mp_msg_levels[mod]);
}
static void set_msg_color(FILE* stream, int lev)
{
static const unsigned char v_colors[10] = {9, 1, 3, 15, 7, 7, 2, 8, 8, 8};
int c = v_colors[lev];
#ifdef MP_ANNOY_ME
/* that's only a silly color test */
{
int c;
static int flag = 1;
if (flag)
for(c = 0; c < 24; c++)
printf("\033[%d;3%dm*** COLOR TEST %d ***\n", c>7, c&7, c);
flag = 0;
}
#endif
if (mp_msg_docolor())
{
#ifdef _WIN32
HANDLE *wstream = stream == stderr ? hSTDERR : hSTDOUT;
SetConsoleTextAttribute(wstream, ansi2win32[c] | FOREGROUND_INTENSITY);
#else
fprintf(stream, "\033[%d;3%dm", c >> 3, c & 7);
#endif
}
}
static void print_msg_module(FILE* stream, int mod)
{
static const char *module_text[MSGT_MAX] = {
"GLOBAL",
"CPLAYER",
"GPLAYER",
"VIDEOOUT",
"AUDIOOUT",
"DEMUXER",
"DS",
"DEMUX",
"HEADER",
"AVSYNC",
"AUTOQ",
"CFGPARSER",
"DECAUDIO",
"DECVIDEO",
"SEEK",
"WIN32",
"OPEN",
"DVD",
"PARSEES",
"LIRC",
"STREAM",
"CACHE",
"MENCODER",
"XACODEC",
"TV",
"OSDEP",
"SPUDEC",
"PLAYTREE",
"INPUT",
"VFILTER",
"OSD",
"NETWORK",
"CPUDETECT",
"CODECCFG",
"SWS",
"VOBSUB",
"SUBREADER",
"AFILTER",
"NETST",
"MUXER",
"OSDMENU",
"IDENTIFY",
"RADIO",
"ASS",
"LOADER",
"STATUSLINE",
};
int c2 = (mod + 1) % 15 + 1;
if (!mp_msg_module)
return;
#ifdef _WIN32
HANDLE *wstream = stream == stderr ? hSTDERR : hSTDOUT;
if (mp_msg_docolor())
SetConsoleTextAttribute(wstream, ansi2win32[c2&7] | FOREGROUND_INTENSITY);
fprintf(stream, "%9s", module_text[mod]);
if (mp_msg_docolor())
SetConsoleTextAttribute(wstream, stdoutAttrs);
#else
if (mp_msg_docolor())
fprintf(stream, "\033[%d;3%dm", c2 >> 3, c2 & 7);
fprintf(stream, "%9s", module_text[mod]);
if (mp_msg_docolor())
fprintf(stream, "\033[0;37m");
#endif
fprintf(stream, ": ");
}
void mp_msg_va(int mod, int lev, const char *format, va_list va)
{
char tmp[MSGSIZE_MAX];
FILE *stream = lev == MSGL_STATUS ? stderr : stdout;
static int header = 1;
// indicates if last line printed was a status line
static int statusline;
if (!mp_msg_test(mod, lev)) return; // do not display
vsnprintf(tmp, MSGSIZE_MAX, format, va);
tmp[MSGSIZE_MAX-2] = '\n';
tmp[MSGSIZE_MAX-1] = 0;
/* A status line is normally intended to be overwritten by the next
* status line, and does not end with a '\n'. If we're printing a normal
* line instead after the status one print '\n' to change line. */
if (statusline && lev != MSGL_STATUS)
fprintf(stderr, "\n");
statusline = lev == MSGL_STATUS;
if (header)
print_msg_module(stream, mod);
set_msg_color(stream, lev);
size_t len = strlen(tmp);
header = len && (tmp[len-1] == '\n' || tmp[len-1] == '\r');
fprintf(stream, "%s", tmp);
if (mp_msg_docolor())
{
#ifdef _WIN32
HANDLE *wstream = lev <= MSGL_WARN ? hSTDERR : hSTDOUT;
SetConsoleTextAttribute(wstream, stdoutAttrs);
#else
fprintf(stream, "\033[0m");
#endif
}
fflush(stream);
}
void mp_msg(int mod, int lev, const char *format, ...)
{
va_list va;
va_start(va, format);
mp_msg_va(mod, lev, format, va);
va_end(va);
}
char *mp_gtext(const char *string)
{
#ifdef CONFIG_GETTEXT
/* gettext expects the global locale to be set with
* setlocale(LC_ALL, ""). However doing that would suck for a
* couple of reasons (locale stuff is badly designed and sucks in
* general).
*
* First, setting the locale, especially LC_CTYPE, changes the
* behavior of various C functions and we don't want that - we
* want isalpha() for example to always behave like in the C
* locale.
* Second, there is no way to enforce a sane character set. All
* strings inside MPlayer must always be in utf-8, not in the
* character set specified by the system locale which could be
* something different and completely insane. The locale system
* lacks any way to say "set LC_CTYPE to utf-8, ignoring the
* default system locale if it specifies something different". We
* could try to work around that flaw by leaving LC_CTYPE to the C
* locale and only setting LC_MESSAGES (which is the variable that
* must be set to tell gettext which language to translate
* to). However if we leave LC_MESSAGES set then things like
* strerror() may produce completely garbled output when they try
* to translate their results but then try to convert some
* translated non-ASCII text to the character set specified by
* LC_CTYPE which would still be in the C locale (this doesn't
* affect gettext itself because it supports specifying the
* character set directly with bind_textdomain_codeset()).
*
* So the only solution (at least short of trying to work around
* things possibly producing non-utf-8 output) is to leave all the
* locale variables unset. Note that this means it's not possible
* to get translated output from any libraries we call if they
* only rely on the broken locale system to specify the language
* to use; this is the case with libc for example.
*
* The locale changing below is rather ugly, but hard to avoid.
* gettext doesn't support specifying the translation target
* directly, only through locale.
* The main actual problem this could cause is interference with
* other threads; that could be avoided with thread-specific
* locale changes, but such functionality is less standard and I
* think it's not worth adding pre-emptively unless someone sees
* an actual problem case.
*/
setlocale(LC_MESSAGES, "");
string = gettext(string);
setlocale(LC_MESSAGES, "C");
#endif
return (char *)string;
}
void mp_tmsg(int mod, int lev, const char *format, ...)
{
va_list va;
va_start(va, format);
mp_msg_va(mod, lev, mp_gtext(format), va);
va_end(va);
}