Function main

shadercompiler/ShaderCompiler.cpp:585–889

int _tmain( int argc, _TCHAR* argv[] )
#else
int main( int argc, char* argv[] )
#endif
{

#if _WIN32
	InitializeCriticalSection( &s_exceptionMutex );
	SetUnhandledExceptionFilter( &ReportException );

	char metalToolsPath[MAX_PATH] = { 0 };
	size_t metalToolsPathSize;
	if( getenv_s( &metalToolsPathSize, metalToolsPath, "METAL_TOOLS_PATH" ) == 0 )
	{
		g_metalToolsPath = metalToolsPath;
	}
#else
	if( auto metalToolsPath = getenv( "METAL_TOOLS_PATH" ) )
	{
		g_metalToolsPath = metalToolsPath;
	}
#endif


	ProgramArguments args;
	if( !ExtractCommandLineArguments( args, argc, argv ) )
	{
		PrintUsage();
		return 1;
	}

	WithTelemetry withTelemetry( args.telemetry );

	if( args.checkMTime )
	{
		PrintOutOfDateFiles( args.coreCount );
		return 0;
	}
	if( args.printPermutations )
	{
		return PrintPermutations( args.shaderPath ) ? 0 : 1;
	}

	// Preload shader file
	auto shader = g_includeHandler.Open( args.shaderPath );
	if( !shader )
	{
		printf( "%s: error X0000: Could not open input file \"%s\"\n", args.shaderPath, args.shaderPath );
		return 1;
	}
	g_shaderSource = shader->data;
	g_shaderLength = shader->size;

	g_includeHandler.SetRootPath( args.shaderPath );
	g_messages.SetEntryFileName( args.shaderPath );

	const int32_t coreFactor = 4;

	CompileQueue compileQueue( args.coreCount * coreFactor, args.coreCount, &CompileShader );