feat: added ansi color stdout logging

Signed-off-by: Michael Pollind <mpollind@gmail.com>

Author: pollend

include/nbl/system/CColoredStdoutLoggerANSI.h

@@ -0,0 +1,27 @@
+#ifndef _NBL_SYSTEM_C_COLORFUL_STDOUT_LOGGER_ANSI_INCLUDED_
+#define _NBL_SYSTEM_C_COLORFUL_STDOUT_LOGGER_ANSI_INCLUDED_
+
+#include "nbl/system/IThreadsafeLogger.h"
+
+#include <string_view>
+
+namespace nbl::system {
+
+#include "nbl/system/DefaultFuncPtrLoader.h"
+
+// logging using ANSI escape codes
+class NBL_API CColoredStdoutLoggerANSI : public IThreadsafeLogger {
+
+public:
+  CColoredStdoutLoggerANSI(
+      core::bitflag<E_LOG_LEVEL> logLevelMask = ILogger::defaultLogMask())
+      : IThreadsafeLogger(logLevelMask) {}
+
+private:
+  virtual void threadsafeLog_impl(const std::string_view &fmt,
+                                  E_LOG_LEVEL logLevel, va_list args) override;
+};
+
+} // namespace nbl::system
+
+#endif

src/nbl/system/CColoredStdoutLoggerANSI.cpp

@@ -0,0 +1,35 @@
+#include "nbl/system/CColoredStdoutLoggerANSI.h"
+
+using namespace nbl::system;
+
+void CColoredStdoutLoggerANSI::threadsafeLog_impl(const std::string_view &fmt, E_LOG_LEVEL logLevel, va_list args) {
+	auto str = constructLogString(fmt, logLevel, args);
+	switch (logLevel) {
+		case ELL_DEBUG: {
+			printf("\x1b[37m%s", str.data()); // White
+			break;
+		}
+		case ELL_INFO: {
+			printf("\x1b[37m%s", str.data()); // White
+			break;
+		}
+		case ELL_WARNING: {
+			printf("\x1b[33m%s", str.data()); // yellow
+			break;
+		}
+		case ELL_ERROR: {
+			printf("\x1b[31m%s", str.data()); // red
+			break;
+		}
+		case ELL_PERFORMANCE: {
+			printf("\x1b[34m%s", str.data()); // blue
+			break;
+		}
+		case ELL_NONE: {
+			assert(false);
+			break;
+		}
+	}
+	fflush(stdout);
+}
+