#pragma once

//收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收
//	<External Includes>
//
//#pragma message("     _Adding library: zlib.lib (Please read License)" ) 
#pragma comment(lib, "../../lib/"VC_DIR_REDIRECT"/zlib.lib")

//收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收收
//	<CompressStreamIO>
//
class CompressStreamIO
{
public:
	enum eQUERY_RESULT {
		QR_ERR_DEFAULT			= 0,
		QR_ERR_SUCCESS			= 1,
		QR_ERR_FILE_CONTROL		,
		QR_ERR_CANT_LOAD_FILE	,
		QR_ERR_BUFFER_PTR		,
		QR_ERR_BUFFER_SIZE		,
		QR_ERR_COMPRESS			,
		QR_ERR_UNCOMPRESS		,
	};
	struct sSTREAM_INFO
	{
		sSTREAM_INFO() : STREAM(0), SIZE(0) {}

		BYTE*		STREAM;
		DWORD		SIZE;
	};
	typedef sSTREAM_INFO					STREAM_INFO_NODE;

public:		//	<ResourceAlloc>
	//		filename : file name for load
	//		rInfo.STREAM : loaded file stream
	//		rInfo.SIZE : loaded file stream size
public:		static BOOL						ResourceAlloc( const CHAR* filename, STREAM_INFO_NODE& OUT rInfo );
			//	<ResourceFree>
			//		if( rINFO.STREAM && rINFO.SIZE ) delete memory
			static BOOL						ResourceFree( const STREAM_INFO_NODE& IN rInfo );
			//	<Compress>
			//		rPlainInfo.STREAM		:[IN] source plain stream
			//		rPlainInfo.SIZE			:[IN] source plain stream size
			//		rCompressInfo.STREAM	:[OUT] dest compressed stream ptr
			//		rCompressInfo.SIZE		:[OUT] dest compressed stream size (fix)
			static BOOL						Compress( const sSTREAM_INFO& rPlainInfo, sSTREAM_INFO& OUT rCompressInfo );
			//	<Compress>
			//		rCompressInfo.STREAM	:[IN] source compressed stream ptr
			//		rCompressInfo.SIZE		:[IN] source compressed stream size (fix)
			//		rPlainInfo.STREAM		:[OUT] dest plain stream (NULL)
			//		rPlainInfo.SIZE			:[IN:OUT] dest plain stream size
			//			(高檜 氈橫撿 フ棻. plain stream戲煎 犒錳衛 ブ渡腆 觼晦,
			//			頂睡瞳戲煎 null-terminate堅溥 觼晦 營 ブ渡 � 犒錳)
			static BOOL						Uncompress( const sSTREAM_INFO& rCompressInfo, sSTREAM_INFO& INOUT rPlainInfo );
private:	inline static DWORD				_CalcCompressingSafeBufferSize( const DWORD sourceLen );
};