mirror of
https://github.com/TerryCavanagh/VVVVVV.git
synced 2024-06-26 06:28:30 +02:00
ac85f57441
This includes the bold as well. INFO is just default, WARN is yellow, ERROR is red. We try to automatically detect if the output is a TTY (and thus supports colors), and don't emit colors if so. Windows 10 supports ANSI color codes starting with a specific build, but we don't care to emit whatever garbage Microsoft invented for builds older than that.
106 lines
2.1 KiB
C
106 lines
2.1 KiB
C
#include <SDL_stdinc.h>
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#include <stdarg.h>
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#include <stdio.h>
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#if 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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#elif defined(_WIN32)
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#include <io.h>
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#include <windows.h>
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#define STDOUT_IS_TTY _isatty(_fileno(stdout))
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#define STDERR_IS_TTY _isatty(_fileno(stderr))
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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 ? 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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static int color_enabled = 0;
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void vlog_init(void)
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{
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#ifdef _WIN32
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OSVERSIONINFO osvi;
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SDL_zero(osvi);
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osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
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GetVersionExW(&osvi);
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#endif
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if (STDOUT_IS_TTY
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&& STDERR_IS_TTY
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#ifdef _WIN32
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/* Windows supports ANSI escape sequences starting with Windows 10
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* build 10586. We don't care to emit them on anything lower. */
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&& osvi.dwMajorVersion >= 10
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&& osvi.dwBuildNumber >= 10586
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#endif
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) {
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color_enabled = 1;
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}
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}
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int vlog_info(const char* text, ...)
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{
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va_list list;
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int retval;
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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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retval = vprintf(text, list);
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va_end(list);
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putchar('\n');
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return retval;
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}
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int vlog_warn(const char* text, ...)
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{
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va_list list;
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int retval;
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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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retval = vfprintf(stderr, text, list);
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va_end(list);
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fputc('\n', stderr);
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return retval;
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}
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int vlog_error(const char* text, ...)
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{
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va_list list;
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int retval;
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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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retval = vfprintf(stderr, text, list);
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va_end(list);
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fputc('\n', stderr);
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return retval;
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}
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