FF_T_SINT32 FF_Utf16ctoUtf8c	(	FF_T_UINT8 *	utf8Dest,
		const FF_T_UINT16 *	utf16Source,
		FF_T_UINT32	ulSize
	)
Definition at line 142 of file ff_unicode.c.
Referenced by FF_FindEntryInDir(), FF_PopulateLongDirent(), and FF_Utf32stoUtf8s().
                                                                                                       {
    FF_T_UINT32 ulUtf32char;
    FF_T_UINT16 ulUtf16char;

    if(!ulSize) {
        return FF_ERR_UNICODE_DEST_TOO_SMALL;
    }

        memcpy(&ulUtf16char, utf16Source, sizeof(FF_T_UINT16));
    if((/*bobtntfullfat *utf16Source*/ulUtf16char & 0xF800) == 0xD800) {    // A surrogate sequence was encountered. Must transform to UTF32 first.
                ulUtf32char  = ((FF_T_UINT32) (ulUtf16char & 0x003FF) << 10) + 0x10000;
        //bobtntfullfat ulUtf32char  = ((FF_T_UINT32) (*(utf16Source + 0) & 0x003FF) << 10) + 0x10000;

                memcpy(&ulUtf16char, utf16Source + 1, sizeof(FF_T_UINT16));                
        if((/*bobtntfullfat *(utf16Source + 1)*/ulUtf16char & 0xFC00) != 0xDC00) {
            return FF_ERR_UNICODE_INVALID_SEQUENCE; // Invalid UTF-16 sequence.
        }
        ulUtf32char |= ((FF_T_UINT32) (/*bobtntfullfat *(utf16Source + 1)*/ulUtf16char & 0x003FF));

    } else {
        ulUtf32char = (FF_T_UINT32) /*bobtntfullfat *utf16Source*/ulUtf16char;
    }

    // Now convert to the UTF-8 sequence.
    if(ulUtf32char < 0x00000080) {  // Single byte UTF-8 sequence.
        *(utf8Dest + 0) = (FF_T_UINT8) ulUtf32char;
        return 1;
    }

    if(ulUtf32char < 0x00000800) {  // Double byte UTF-8 sequence.
        if(ulSize < 2) {
            return FF_ERR_UNICODE_DEST_TOO_SMALL;
        }
        *(utf8Dest + 0) = (FF_T_UINT8) (0xC0 | ((ulUtf32char >> 6) & 0x1F));
        *(utf8Dest + 1) = (FF_T_UINT8) (0x80 | ((ulUtf32char >> 0) & 0x3F));
        return 2;
    }

    if(ulUtf32char < 0x00010000) {  // Triple byte UTF-8 sequence.
        if(ulSize < 3) {
            return FF_ERR_UNICODE_DEST_TOO_SMALL;
        }
        *(utf8Dest + 0) = (FF_T_UINT8) (0xE0 | ((ulUtf32char >> 12) & 0x0F));
        *(utf8Dest + 1) = (FF_T_UINT8) (0x80 | ((ulUtf32char >> 6 ) & 0x3F));
        *(utf8Dest + 2) = (FF_T_UINT8) (0x80 | ((ulUtf32char >> 0 ) & 0x3F));
        return 3;
    }

    if(ulUtf32char < 0x00200000) {  // Quadruple byte UTF-8 sequence.
        if(ulSize < 4) {
            return FF_ERR_UNICODE_DEST_TOO_SMALL;
        }
        *(utf8Dest + 0) = (FF_T_UINT8) (0xF0 | ((ulUtf32char >> 18) & 0x07));
        *(utf8Dest + 1) = (FF_T_UINT8) (0x80 | ((ulUtf32char >> 12) & 0x3F));
        *(utf8Dest + 2) = (FF_T_UINT8) (0x80 | ((ulUtf32char >> 6 ) & 0x3F));
        *(utf8Dest + 3) = (FF_T_UINT8) (0x80 | ((ulUtf32char >> 0 ) & 0x3F));
        return 4;
    }

    return FF_ERR_UNICODE_INVALID_CODE; // Invalid Charachter
}
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