mirror of
https://github.com/TerryCavanagh/VVVVVV.git
synced 2024-06-26 06:28:30 +02:00
0a181d8c3d
Previously, we were using `color_enabled` to mean both that the color was supported and that it was enabled by the user (which it is enabled by default). But this logic doesn't work well if the color check function is called again and ends up enabling color after the user disabled it. To fix this, just separate the two so the user controls one `color_supported` variable and the `color_enabled` variable is separate. Check both of them in order to print color, of course.
190 lines
3.6 KiB
C
190 lines
3.6 KiB
C
#include <SDL_stdinc.h>
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#include <stdarg.h>
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#include <stdio.h>
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#ifdef _WIN32
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# define WIN32_LEAN_AND_MEAN
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# include <windows.h>
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# define STDOUT_IS_TTY 0
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# define STDERR_IS_TTY 0
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#elif defined(__unix__) || defined(__APPLE__)
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# include <unistd.h>
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# define STDOUT_IS_TTY isatty(STDOUT_FILENO)
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# define STDERR_IS_TTY isatty(STDERR_FILENO)
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#else
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# define STDOUT_IS_TTY 0
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# define STDERR_IS_TTY 0
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#endif
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#define COLOR(EXPR) (color_enabled && color_supported ? EXPR : "")
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#define Color_RESET COLOR("\x1b[0m")
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#define Color_BOLD COLOR("\x1b[1m")
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#define Color_BOLD_YELLOW COLOR("\x1b[1;33m")
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#define Color_BOLD_RED COLOR("\x1b[1;31m")
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#define Color_BOLD_GRAY COLOR("\x1b[1;90m")
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static int output_enabled = 1;
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static int color_supported = 0;
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static int color_enabled = 1;
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static int debug_enabled = 0;
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static int info_enabled = 1;
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static int warn_enabled = 1;
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static int error_enabled = 1;
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static void check_color_support(void)
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{
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if (STDOUT_IS_TTY && STDERR_IS_TTY)
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{
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color_supported = 1;
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}
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}
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void vlog_init(void)
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{
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check_color_support();
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}
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void vlog_toggle_output(const int enable_output)
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{
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output_enabled = enable_output;
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}
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void vlog_toggle_color(const int enable_color)
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{
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color_enabled = enable_color;
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}
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void vlog_toggle_debug(const int enable_debug)
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{
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debug_enabled = enable_debug;
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}
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void vlog_toggle_info(const int enable_info)
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{
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info_enabled = enable_info;
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}
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void vlog_toggle_warn(const int enable_warn)
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{
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warn_enabled = enable_warn;
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}
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void vlog_toggle_error(const int enable_error)
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{
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error_enabled = enable_error;
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}
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SDL_PRINTF_VARARG_FUNC(1) void vlog_debug(const char* text, ...)
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{
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va_list list;
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if (!output_enabled || !debug_enabled)
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{
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return;
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}
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printf(Color_BOLD_GRAY);
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printf("[DEBUG]");
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printf(Color_RESET);
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printf(" ");
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va_start(list, text);
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vprintf(text, list);
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va_end(list);
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putchar('\n');
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}
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SDL_PRINTF_VARARG_FUNC(1) void vlog_info(const char* text, ...)
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{
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va_list list;
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if (!output_enabled || !info_enabled)
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{
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return;
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}
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printf(Color_BOLD);
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printf("[INFO]");
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printf(Color_RESET);
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printf(" ");
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va_start(list, text);
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vprintf(text, list);
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va_end(list);
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putchar('\n');
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}
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SDL_PRINTF_VARARG_FUNC(1) void vlog_warn(const char* text, ...)
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{
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va_list list;
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if (!output_enabled || !warn_enabled)
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{
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return;
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}
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fprintf(stderr, Color_BOLD_YELLOW);
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fprintf(stderr, "[WARN]");
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fprintf(stderr, Color_RESET);
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fprintf(stderr, " ");
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va_start(list, text);
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vfprintf(stderr, text, list);
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va_end(list);
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fputc('\n', stderr);
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}
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SDL_PRINTF_VARARG_FUNC(1) void vlog_error(const char* text, ...)
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{
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va_list list;
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if (!output_enabled || !error_enabled)
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{
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return;
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}
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fprintf(stderr, Color_BOLD_RED);
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fprintf(stderr, "[ERROR]");
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fprintf(stderr, Color_RESET);
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fprintf(stderr, " ");
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va_start(list, text);
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vfprintf(stderr, text, list);
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va_end(list);
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fputc('\n', stderr);
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}
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#ifdef _WIN32
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void vlog_open_console(void)
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{
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static int run_once = 0;
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if (run_once)
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{
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return;
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}
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run_once = 1;
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const BOOL success = AllocConsole();
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if (!success)
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{
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/* Debug, not error, because it might not be an error.
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* (E.g. there is already an attached console.) */
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vlog_debug(
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"Could not open console: AllocConsole() failed with %d",
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GetLastError()
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);
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return;
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}
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freopen("CON", "w", stdout);
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freopen("CON", "w", stderr);
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check_color_support();
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}
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#endif /* _WIN32 */
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