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VVVVVV/desktop_version/src/Vlogging.c

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#include <SDL_stdinc.h>
#include <stdarg.h>
#include <stdio.h>
#if defined(__unix__) || defined(__APPLE__)
# include <unistd.h>
# define STDOUT_IS_TTY isatty(STDOUT_FILENO)
# define STDERR_IS_TTY isatty(STDERR_FILENO)
#else
# define STDOUT_IS_TTY 0
# define STDERR_IS_TTY 0
#endif
#define COLOR(EXPR) color_enabled ? EXPR : ""
#define Color_RESET COLOR("\x1b[0m")
#define Color_BOLD COLOR("\x1b[1m")
#define Color_BOLD_YELLOW COLOR("\x1b[1;33m")
#define Color_BOLD_RED COLOR("\x1b[1;31m")
#define Color_BOLD_GRAY COLOR("\x1b[1;90m")
static int output_enabled = 1;
static int color_enabled = 0;
static int debug_enabled = 0;
static int info_enabled = 1;
static int warn_enabled = 1;
static int error_enabled = 1;
void vlog_init(void)
{
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if (STDOUT_IS_TTY && STDERR_IS_TTY)
{
color_enabled = 1;
}
}
void vlog_toggle_output(const int enable_output)
{
output_enabled = enable_output;
}
void vlog_toggle_color(const int enable_color)
{
color_enabled = enable_color;
}
void vlog_toggle_debug(const int enable_debug)
{
debug_enabled = enable_debug;
}
void vlog_toggle_info(const int enable_info)
{
info_enabled = enable_info;
}
void vlog_toggle_warn(const int enable_warn)
{
warn_enabled = enable_warn;
}
void vlog_toggle_error(const int enable_error)
{
error_enabled = enable_error;
}
SDL_PRINTF_VARARG_FUNC(1) void vlog_debug(const char* text, ...)
{
va_list list;
if (!output_enabled || !debug_enabled)
{
return;
}
printf(Color_BOLD_GRAY);
printf("[DEBUG]");
printf(Color_RESET);
printf(" ");
va_start(list, text);
vprintf(text, list);
va_end(list);
putchar('\n');
}
SDL_PRINTF_VARARG_FUNC(1) void vlog_info(const char* text, ...)
{
va_list list;
if (!output_enabled || !info_enabled)
{
return;
}
printf(Color_BOLD);
printf("[INFO]");
printf(Color_RESET);
printf(" ");
va_start(list, text);
vprintf(text, list);
va_end(list);
putchar('\n');
}
SDL_PRINTF_VARARG_FUNC(1) void vlog_warn(const char* text, ...)
{
va_list list;
if (!output_enabled || !warn_enabled)
{
return;
}
fprintf(stderr, Color_BOLD_YELLOW);
fprintf(stderr, "[WARN]");
fprintf(stderr, Color_RESET);
fprintf(stderr, " ");
va_start(list, text);
vfprintf(stderr, text, list);
va_end(list);
fputc('\n', stderr);
}
SDL_PRINTF_VARARG_FUNC(1) void vlog_error(const char* text, ...)
{
va_list list;
if (!output_enabled || !error_enabled)
{
return;
}
fprintf(stderr, Color_BOLD_RED);
fprintf(stderr, "[ERROR]");
fprintf(stderr, Color_RESET);
fprintf(stderr, " ");
va_start(list, text);
vfprintf(stderr, text, list);
va_end(list);
fputc('\n', stderr);
}