layout: restructure into src/ tests/ android/ scripts/ tools/

- extension/src/{port,platform,codepage} -> src/; native_render -> src/host
  (+ dxt, shaders/); libgr2 -> src/gr2; extension/third_party -> third_party
- extension/tests -> tests/port, libgr2/tests -> tests/gr2
- android-native -> android (build.sh, push-client.sh moved in)
- script -> scripts; tools/40250 -> tools/server; oracle -> tools/granny-oracle;
  perf tools -> tools/perf
- all build trees under build/ (native, release, android, port-gate)
- xrender:: CMake aliases -> mt::; port-map ledger impl paths rewritten

No code changes. ctest 15/15, port_gate macos+android PASS, port_map check 0 errors.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/port/EterLib/FileLoaderThread.h

@@ -0,0 +1,63 @@
+#ifndef __INC_YMIR_ETERLIB_FILELOADERTHREAD_H__
+#define __INC_YMIR_ETERLIB_FILELOADERTHREAD_H__
+
+#include <deque>
+#include "Thread.h"
+#include "Mutex.h"
+#include "../EterBase/MappedFile.h"
+
+class CFileLoaderThread 
+{
+	public:
+		typedef struct SData
+		{
+			std::string	stFileName;
+
+			CMappedFile	File;
+			LPVOID		pvBuf;
+			DWORD		dwSize;
+		} TData;
+
+	public:
+		CFileLoaderThread();
+		~CFileLoaderThread();
+
+		int Create(void * arg);
+	
+	public:
+		void	Request(std::string & c_rstFileName);
+		bool	Fetch(TData ** ppData);
+		void	Shutdown();
+
+	protected:
+		static UINT CALLBACK	EntryPoint(void * pThis);
+		UINT					Run(void * arg);
+
+		void *					Arg() const		{ return m_pArg; }
+		void					Arg(void * arg) { m_pArg = arg; }
+		
+		HANDLE					m_hThread;
+
+	private:
+		void *					m_pArg;
+		unsigned				m_uThreadID;
+
+	protected:
+		UINT					Setup();
+		UINT					Execute(void * pvArg);
+		void					Destroy();
+		void					Process();
+
+	private:
+		std::deque<TData *>		m_pRequestDeque;
+		Mutex					m_RequestMutex;
+
+		std::deque<TData *>		m_pCompleteDeque;
+		Mutex					m_CompleteMutex;
+
+		HANDLE					m_hSemaphore;
+		int						m_iRestSemCount;
+		bool					m_bShutdowned;
+};
+
+#endif