sys/src/cmd/vnc/vnc.h

   1 #include <u.h>
   2 #include <libc.h>
   3 #include <bio.h>
   4 #include <draw.h>
   5 #include <memdraw.h>
   6
   7 typedef struct Pixfmt   Pixfmt;
   8 typedef struct Colorfmt Colorfmt;
   9 typedef struct Vnc      Vnc;
  10
  11 struct Colorfmt {
  12         int             max;
  13         int             shift;
  14 };
  15
  16 struct Pixfmt {
  17         int             bpp;
  18         int             depth;
  19         int             bigendian;
  20         int             truecolor;
  21         Colorfmt        red;
  22         Colorfmt        green;
  23         Colorfmt        blue;
  24 };
  25
  26 struct Vnc {
  27         QLock;
  28         int             datafd;                 /* for network connection */
  29         int             ctlfd;                  /* control for network connection */
  30
  31         Biobuf          in;
  32         Biobuf          out;
  33
  34         Rectangle       dim;
  35         Pixfmt;
  36         char            *name;  /* client only */
  37
  38         int             canresize;
  39         struct {
  40                 ulong           id;
  41                 Rectangle       rect;
  42                 ulong           flags;
  43         }               screen[1];
  44 };
  45
  46 enum {
  47         /* authentication negotiation */
  48         AFailed         = 0,
  49         ANoAuth,
  50         AVncAuth,
  51
  52         /* vnc auth negotiation */
  53         VncAuthOK       = 0,
  54         VncAuthFailed,
  55         VncAuthTooMany,
  56         VncChalLen      = 16,
  57
  58         /* server to client */
  59         MFrameUpdate    = 0,
  60         MSetCmap,
  61         MBell,
  62         MSCut,
  63         MSAck,
  64
  65         /* client to server */
  66         MPixFmt         = 0,
  67         MFixCmap,
  68         MSetEnc,
  69         MFrameReq,
  70         MKey,
  71         MMouse,
  72         MCCut,
  73         MSetDesktopSize = 251,
  74
  75         /* image encoding methods */
  76         EncRaw          = 0,
  77         EncCopyRect     = 1,
  78         EncRre          = 2,
  79         EncCorre        = 4,
  80         EncHextile      = 5,
  81         EncZlib         = 6,  /* 6,7,8 have been used by others */
  82         EncTight        = 7,
  83         EncZHextile     = 8,
  84         EncMouseWarp    = 9,
  85
  86         EncDesktopSize  = -223,
  87         EncXDesktopSize = -308,
  88
  89         /* paramaters for hextile encoding */
  90         HextileDim      = 16,
  91         HextileRaw      = 1,
  92         HextileBack     = 2,
  93         HextileFore     = 4,
  94         HextileRects    = 8,
  95         HextileCols     = 16
  96 };
  97
  98 /*
  99  * we're only using the ulong as a place to store bytes,
 100  * and as something to compare against.
 101  * the bytes are stored in little-endian format.
 102  */
 103 typedef ulong Color;
 104
 105 /* auth.c */
 106 extern  int             vncauth(Vnc*, char*);
 107 extern  int             vnchandshake(Vnc*);
 108 extern  int             vncsrvauth(Vnc*);
 109 extern  int             vncsrvhandshake(Vnc*);
 110
 111 /* proto.c */
 112 extern  Vnc*            vncinit(int, int, Vnc*);
 113 extern  uchar           vncrdchar(Vnc*);
 114 extern  ushort          vncrdshort(Vnc*);
 115 extern  ulong           vncrdlong(Vnc*);
 116 extern  Point           vncrdpoint(Vnc*);
 117 extern  Rectangle       vncrdrect(Vnc*);
 118 extern  Rectangle       vncrdcorect(Vnc*);
 119 extern  Pixfmt          vncrdpixfmt(Vnc*);
 120 extern  void            vncrdbytes(Vnc*, void*, int);
 121 extern  char*           vncrdstring(Vnc*);
 122 extern  char*   vncrdstringx(Vnc*);
 123 extern  void            vncwrstring(Vnc*, char*);
 124 extern  void            vncgobble(Vnc*, long);
 125
 126 extern  void            vncflush(Vnc*);
 127 extern  void            vncterm(Vnc*);
 128 extern  void            vncwrbytes(Vnc*, void*, int);
 129 extern  void            vncwrlong(Vnc*, ulong);
 130 extern  void            vncwrshort(Vnc*, ushort);
 131 extern  void            vncwrchar(Vnc*, uchar);
 132 extern  void            vncwrpixfmt(Vnc*, Pixfmt*);
 133 extern  void            vncwrrect(Vnc*, Rectangle);
 134 extern  void            vncwrpoint(Vnc*, Point);
 135
 136 extern  void            vnclock(Vnc*);          /* for writing */
 137 extern  void            vncunlock(Vnc*);
 138
 139 extern  void            hexdump(void*, int);
 140
 141 /* implemented by clients of the io library */
 142 extern  void            vnchungup(Vnc*);
 143
 144 extern  int             verbose;
 145 extern  char*           serveraddr;