Fix potential crash in benchmark mode with no console attached

Fixes #1175

base/benchmark.hpp

@@ -1,7 +1,7 @@
 /*
 * Benchmark class - Can be used for automated benchmarks
 *
-* Copyright (C) 2016-2024 by Sascha Willems - www.saschawillems.de
+* Copyright (C) 2016-2025 by Sascha Willems - www.saschawillems.de
 *
 * This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
 */
@@ -36,12 +36,15 @@ namespace vks
 			active = true;
 			this->deviceProps = deviceProps;
 #if defined(_WIN32)
-			AttachConsole(ATTACH_PARENT_PROCESS);
-			freopen_s(&stream, "CONOUT$", "w+", stdout);
-			freopen_s(&stream, "CONOUT$", "w+", stderr);
+			bool consoleAttached = AttachConsole(ATTACH_PARENT_PROCESS);
+			if (!consoleAttached) {
+				consoleAttached = AttachConsole(GetCurrentProcessId());
+			}
+			if (consoleAttached) {
+				freopen_s(&stream, "CONOUT$", "w+", stdout);
+				freopen_s(&stream, "CONOUT$", "w+", stderr);
+			}
 #endif
-			std::cout << std::fixed << std::setprecision(3);
-
 			// Warm up phase to get more stable frame rates
 			{
 				double tMeasured = 0.0;
@@ -64,7 +67,8 @@ namespace vks
 					frameCount++;
 					if (outputFrames != -1 && outputFrames == frameCount) break;
 				};
-				std::cout << "Benchmark finished" << "\n";
+				std::cout << std::fixed << std::setprecision(3);
+				std::cout << "Benchmark finished\n";
 				std::cout << "device : " << deviceProps.deviceName << " (driver version: " << deviceProps.driverVersion << ")" << "\n";
 				std::cout << "runtime: " << (runtime / 1000.0) << "\n";
 				std::cout << "frames : " << frameCount << "\n";