Fix audio driver starting in debug mode, add -diagnostics mode

GpCommon/GpAudioDriverProperties.h

@@ -3,6 +3,7 @@
 #include "EGpAudioDriverType.h"
 
 struct IGpAudioDriver;
+struct IGpLogDriver;
 
 struct GpAudioDriverProperties
 {
@@ -10,4 +11,6 @@ struct GpAudioDriverProperties
 
 	unsigned int m_sampleRate;
 	bool m_debug;
+
+	IGpLogDriver *m_logger;
 };

GpCommon/GpDisplayDriverProperties.h

@@ -8,6 +8,7 @@
 struct IGpDisplayDriver;
 struct IGpFiber;
 struct IGpVOSEventQueue;
+struct IGpLogDriver;
 
 struct GpDisplayDriverProperties
 {
@@ -39,4 +40,5 @@ struct GpDisplayDriverProperties
 	void *m_adjustRequestedResolutionFuncContext;
 
 	IGpVOSEventQueue *m_eventQueue;
+	IGpLogDriver *m_logger;
 };

GpCommon/GpWindows.h

@@ -19,7 +19,9 @@ struct GpWindowsGlobals
 {
 	HINSTANCE m_hInstance;
 	HINSTANCE m_hPrevInstance;
-	LPCSTR m_cmdLine;
+	LPCWSTR m_cmdLine;
+	int m_cmdLineArgc;
+	LPWSTR *m_cmdLineArgv;
 	LPCWSTR m_baseDir;
 	HWND m_hwnd;
 	HICON m_hIcon;

GpCommon/IGpLogDriver.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <cstdarg>
+#include <stdio.h>
+
+struct IGpLogDriver
+{
+	enum Category
+	{
+		Category_Information,
+		Category_Warning,
+		Category_Error,
+	};
+
+	virtual void VPrintf(Category category, const char *fmt, va_list args) = 0;
+	virtual void Shutdown() = 0;
+
+	void Printf(Category category, const char *fmt, ...);
+};
+
+
+inline void IGpLogDriver::Printf(Category category, const char *fmt, ...)
+{
+	va_list args;
+	va_start(args, fmt);
+	this->VPrintf(category, fmt, args);
+	va_end(args);
+}