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

Aerofoil/GpLogDriver_Win32.cpp

@@ -0,0 +1,113 @@
+#include "GpLogDriver_Win32.h"
+#include "GpFileSystem_Win32.h"
+
+#include "GpApplicationName.h"
+#include "IOStream.h"
+
+GpLogDriver_Win32::GpLogDriver_Win32()
+	: m_stream(nullptr)
+	, m_isInitialized(false)
+{
+}
+
+void GpLogDriver_Win32::Init()
+{
+	ms_instance.InitInternal();
+}
+
+void GpLogDriver_Win32::VPrintf(Category category, const char *fmt, va_list args)
+{
+	size_t fmtSize = 0;
+	bool hasFormatting = false;
+	for (const char *fmtCheck = fmt; *fmtCheck; fmtCheck++)
+	{
+		if (*fmtCheck == '%')
+			hasFormatting = true;
+
+		fmtSize++;
+	}
+
+	SYSTEMTIME sysTime;
+	GetSystemTime(&sysTime);
+
+	char timestampBuffer[64];
+	sprintf(timestampBuffer, "[%02d:%02d:%02d:%03d] ", sysTime.wHour, sysTime.wMinute, sysTime.wSecond, sysTime.wMilliseconds);
+
+	m_stream->Write(timestampBuffer, strlen(timestampBuffer));
+
+	const char *debugTag = "";
+
+	switch (category)
+	{
+	case Category_Warning:
+		debugTag = "[WARNING] ";
+		break;
+	case Category_Error:
+		debugTag = "[ERROR] ";
+		break;
+	};
+
+	if (debugTag[0])
+		m_stream->Write(debugTag, strlen(debugTag));
+
+	if (!hasFormatting)
+		m_stream->Write(fmt, fmtSize);
+	else
+	{
+		int formattedSize = vsnprintf(nullptr, 0, fmt, args);
+		if (formattedSize <= 0)
+			return;
+
+		char *charBuff = static_cast<char*>(malloc(formattedSize + 1));
+		if (!charBuff)
+			return;
+
+		vsnprintf(charBuff, formattedSize + 1, fmt, args);
+
+		m_stream->Write(charBuff, formattedSize);
+		free(charBuff);
+	}
+
+	m_stream->Write("\n", 1);
+
+	m_stream->Flush();
+}
+
+void GpLogDriver_Win32::Shutdown()
+{
+	if (m_stream)
+		m_stream->Close();
+}
+
+GpLogDriver_Win32 *GpLogDriver_Win32::GetInstance()
+{
+	if (ms_instance.m_isInitialized)
+		return &ms_instance;
+	else
+		return nullptr;
+}
+
+void GpLogDriver_Win32::InitInternal()
+{
+	SYSTEMTIME utcTime;
+	GetSystemTime(&utcTime);
+
+	char logFileName[256];
+
+	sprintf(logFileName, GP_APPLICATION_NAME "-%04d-%02d-%02d_%02d-%02d_%02d.txt", utcTime.wYear, utcTime.wMonth, utcTime.wDay, utcTime.wHour, utcTime.wMinute, utcTime.wSecond);
+
+	m_stream = GpFileSystem_Win32::GetInstance()->OpenFile(PortabilityLayer::VirtualDirectories::kLogs, logFileName, true, GpFileCreationDispositions::kCreateOrOverwrite);
+	if (m_stream)
+	{
+		this->Printf(IGpLogDriver::Category_Information, GP_APPLICATION_NAME " build " __TIMESTAMP__);
+#ifdef NDEBUG
+		this->Printf(IGpLogDriver::Category_Information, "Configuration: Release");
+#else
+		this->Printf(IGpLogDriver::Category_Information, "Configuration: Debug");
+#endif
+
+		m_isInitialized = true;
+	}
+}
+
+GpLogDriver_Win32 GpLogDriver_Win32::ms_instance;