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#include <u.h>
#include <libc.h>
#include <bio.h>
#include <draw.h>
#include <memdraw.h>
typedef struct Pixfmt Pixfmt;
typedef struct Colorfmt Colorfmt;
typedef struct Vnc Vnc;
struct Colorfmt {
int max;
int shift;
};
struct Pixfmt {
int bpp;
int depth;
int bigendian;
int truecolor;
Colorfmt red;
Colorfmt green;
Colorfmt blue;
};
struct Vnc {
QLock;
int datafd; /* for network connection */
int ctlfd; /* control for network connection */
Biobuf in;
Biobuf out;
Rectangle dim;
Pixfmt;
/* client only */
char *name;
char *srvaddr;
int vers;
int canresize;
struct {
ulong id;
Rectangle rect;
ulong flags;
} screen[1];
};
enum {
VerLen = 12,
/* authentication negotiation */
AFailed = 0,
ANoAuth,
AVncAuth,
/* vnc auth negotiation */
VncAuthOK = 0,
VncAuthFailed,
VncAuthTooMany,
VncChalLen = 16,
/* server to client */
MFrameUpdate = 0,
MSetCmap,
MBell,
MSCut,
MSAck,
/* client to server */
MPixFmt = 0,
MFixCmap,
MSetEnc,
MFrameReq,
MKey,
MMouse,
MCCut,
MSetDesktopSize = 251,
/* image encoding methods */
EncRaw = 0,
EncCopyRect = 1,
EncRre = 2,
EncCorre = 4,
EncHextile = 5,
EncZlib = 6, /* 6,7,8 have been used by others */
EncTight = 7,
EncZHextile = 8,
EncMouseWarp = 9,
EncDesktopSize = -223,
EncXDesktopSize = -308,
/* paramaters for hextile encoding */
HextileDim = 16,
HextileRaw = 1,
HextileBack = 2,
HextileFore = 4,
HextileRects = 8,
HextileCols = 16
};
/*
* we're only using the ulong as a place to store bytes,
* and as something to compare against.
* the bytes are stored in little-endian format.
*/
typedef ulong Color;
/* auth.c */
extern int vncauth(Vnc*, char*);
extern int vnchandshake(Vnc*);
extern int vncsrvauth(Vnc*);
extern int vncsrvhandshake(Vnc*);
/* proto.c */
extern Vnc* vncinit(int, int, Vnc*);
extern uchar vncrdchar(Vnc*);
extern ushort vncrdshort(Vnc*);
extern ulong vncrdlong(Vnc*);
extern Point vncrdpoint(Vnc*);
extern Rectangle vncrdrect(Vnc*);
extern Rectangle vncrdcorect(Vnc*);
extern Pixfmt vncrdpixfmt(Vnc*);
extern void vncrdbytes(Vnc*, void*, int);
extern char* vncrdstring(Vnc*);
extern char* vncrdstringx(Vnc*);
extern void vncwrstring(Vnc*, char*);
extern void vncgobble(Vnc*, long);
extern void vncflush(Vnc*);
extern void vncterm(Vnc*);
extern void vncwrbytes(Vnc*, void*, int);
extern void vncwrlong(Vnc*, ulong);
extern void vncwrshort(Vnc*, ushort);
extern void vncwrchar(Vnc*, uchar);
extern void vncwrpixfmt(Vnc*, Pixfmt*);
extern void vncwrrect(Vnc*, Rectangle);
extern void vncwrpoint(Vnc*, Point);
extern void vnclock(Vnc*); /* for writing */
extern void vncunlock(Vnc*);
extern void hexdump(void*, int);
/* implemented by clients of the io library */
extern void vnchungup(Vnc*);
extern int verbose;
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