xp::GdipImagePtr EmoticonExManager::_LoadImage(const eva::StringA & strEmoticonExName)
{
	eva::StringW strFile = m_strCacheDir + L"\\" + eva::UTF8_to_UTF16(strEmoticonExName);

	eva::RefMemData mem;
	if( !eva::util::ReadFileData(strFile, mem) )
		return NULL;

	// 11,33:EmoticonEx, 22:Sticker, 2201:Avatar
	eva::StringA strEmoticonType = strEmoticonExName.Left(2);
	if ( strEmoticonType == "11" || strEmoticonType == "33" || strEmoticonType == "44")
	{
		int nEncryptedLen = min( mem.m_uDataLen, 128 );
		char crypto_key[] = "a271730728cbe141e47fd9d677e9006d";
		decryptData( (byte*)mem.m_pMem, nEncryptedLen, (byte*)crypto_key, strlen(crypto_key), CRYPT_MODE_BINARY );
	}

#ifdef _DEBUG
	eva::util::CreateAndWriteFile( m_strCacheDir + L"\\_decrypted_" + eva::UTF8_to_UTF16(strEmoticonExName), mem );
#endif

#if 1
	if ( strEmoticonType == "44" )
	{
		WebPData webp_data;
		webp_data.bytes = (const uint8_t *)mem.m_pMem;
		webp_data.size = mem.m_uDataLen;

		WebPDemuxer* demux = WebPDemux(&webp_data);

		uint32_t width = WebPDemuxGetI(demux, WEBP_FF_CANVAS_WIDTH);
		uint32_t height = WebPDemuxGetI(demux, WEBP_FF_CANVAS_HEIGHT);
		uint32_t flags = WebPDemuxGetI(demux, WEBP_FF_FORMAT_FLAGS);

		WebPIterator iter;
		if (WebPDemuxGetFrame(demux, 1, &iter))
		{
			do {
				// ... (Consume 'iter'; e.g. Decode 'iter.fragment' with WebPDecode(),
				// ... and get other frame properties like width, height, offsets etc.
				// ... see 'struct WebPIterator' below for more info).

#if 1
				// webp decoding
				WebPData fragment = iter.fragment;

				int newWidth, newHeight;
				uint8_t* decodedMem = NULL;

				decodedMem = WebPDecodeBGRA((const uint8_t *)fragment.bytes, fragment.size, &newWidth, &newHeight);

				BITMAPINFO bmi;
				ZeroMemory(&bmi, sizeof(BITMAPINFO));
				bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
				bmi.bmiHeader.biWidth = newWidth;
				bmi.bmiHeader.biHeight = -newHeight;
				bmi.bmiHeader.biPlanes = 1;
				bmi.bmiHeader.biBitCount = 32;
				bmi.bmiHeader.biCompression = BI_RGB;  //BI_BITFIELDS
				bmi.bmiHeader.biSizeImage = newWidth * newHeight * 4;

				//BYTE *pvBits;
				//HBITMAP hBitmap = CreateDIBSection(NULL, &bmi, DIB_RGB_COLORS, (void **)&pvBits, NULL, 0);

				//if(hBitmap)
				//{
				Gdiplus::Bitmap * bitmap = Gdiplus::Bitmap::FromBITMAPINFO(&bmi, (void*)decodedMem);
				//					memcpy(pvBits, (const void*) decodedMem, bmi.bmiHeader.biSizeImage);
				//				}

				// for test
				xp::GdipImagePtr spImage = xp::GdipImage::createFromBitmap(bitmap);
				return spImage;

			} while (WebPDemuxNextFrame(&iter));

			WebPDemuxReleaseIterator(&iter);
		}
	}
#endif

	xp::GdipImagePtr spImage = xp::GdipImage::createFromFileData( (void*)mem.GetDataPtr(), mem.m_uDataLen );
	if( spImage == NULL )
	{
		TRACE(L"image file load fail. [%s]\n", strFile);
	}

	return spImage;
}