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      1 /*
      2  * Copyright (C) 2002 RealVNC Ltd.  All Rights Reserved.
      3  * Copyright (C) 2003 Sun Microsystems, Inc.
      4  *
      5  * This is free software; you can redistribute it and/or modify
      6  * it under the terms of the GNU General Public License as published by
      7  * the Free Software Foundation; either version 2 of the License, or
      8  * (at your option) any later version.
      9  *
     10  * This software is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13  * GNU General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU General Public License
     16  * along with this software; if not, write to the Free Software
     17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
     18  * USA.
     19  */
     20 
     21 #ifndef __ZRLE_OUT_STREAM_H__
     22 #define __ZRLE_OUT_STREAM_H__
     23 
     24 #include <zlib.h>
     25 #include "zrletypes.h"
     26 #include "rfb/rfb.h"
     27 
     28 typedef struct {
     29   zrle_U8 *start;
     30   zrle_U8 *ptr;
     31   zrle_U8 *end;
     32 } zrleBuffer;
     33 
     34 typedef struct {
     35   zrleBuffer in;
     36   zrleBuffer out;
     37 
     38   z_stream   zs;
     39 } zrleOutStream;
     40 
     41 #define ZRLE_BUFFER_LENGTH(b) ((b)->ptr - (b)->start)
     42 
     43 zrleOutStream *zrleOutStreamNew           (void);
     44 void           zrleOutStreamFree          (zrleOutStream *os);
     45 rfbBool        zrleOutStreamFlush         (zrleOutStream *os);
     46 void           zrleOutStreamWriteBytes    (zrleOutStream *os,
     47 					   const zrle_U8 *data,
     48 					   int            length);
     49 void           zrleOutStreamWriteU8       (zrleOutStream *os,
     50 					   zrle_U8        u);
     51 void           zrleOutStreamWriteOpaque8  (zrleOutStream *os,
     52 					   zrle_U8        u);
     53 void           zrleOutStreamWriteOpaque16 (zrleOutStream *os,
     54 					   zrle_U16       u);
     55 void           zrleOutStreamWriteOpaque32 (zrleOutStream *os,
     56 					   zrle_U32       u);
     57 void           zrleOutStreamWriteOpaque24A(zrleOutStream *os,
     58 					   zrle_U32       u);
     59 void           zrleOutStreamWriteOpaque24B(zrleOutStream *os,
     60 					   zrle_U32       u);
     61 
     62 #endif /* __ZRLE_OUT_STREAM_H__ */
     63