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Diffstat (limited to 'krfb/libvncserver/rfb.h')
| -rw-r--r-- | krfb/libvncserver/rfb.h | 858 |
1 files changed, 0 insertions, 858 deletions
diff --git a/krfb/libvncserver/rfb.h b/krfb/libvncserver/rfb.h deleted file mode 100644 index 55736af8..00000000 --- a/krfb/libvncserver/rfb.h +++ /dev/null @@ -1,858 +0,0 @@ -#ifndef RFB_H -#define RFB_H - -/* - * rfb.h - header file for RFB DDX implementation. - */ - -/* - * OSXvnc Copyright (C) 2001 Dan McGuirk <mcguirk@incompleteness.net>. - * Original Xvnc code Copyright (C) 1999 AT&T Laboratories Cambridge. - * All Rights Reserved. - * - * This is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This software is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this software; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, - * USA. - */ - -#if(defined __cplusplus) -extern "C" -{ -#endif - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <zlib.h> -#include "keysym.h" - -/* TODO: this stuff has to go into autoconf */ -typedef unsigned char CARD8; -typedef unsigned short CARD16; -typedef unsigned int CARD32; -typedef CARD32 Pixel; -/* typedef CARD32 KeySym; */ -#ifndef __osf__ -typedef unsigned long KeySym; -#endif -#define SIGNED signed -/* for some strange reason, "typedef signed char Bool;" yields a four byte - signed int on IRIX, but only for rfbserver.o!!! */ -#ifdef Bool -#undef Bool -#endif -#define Bool signed char -#undef FALSE -#define FALSE 0 -#undef TRUE -#define TRUE -1 - -#include "rfbproto.h" - -#if defined(__linux__) || defined(__GLIBC__) -#include <endian.h> -#elif defined(__APPLE__) || defined(__FreeBSD__) -#include <sys/types.h> -#include <machine/endian.h> -#ifndef _BYTE_ORDER -#define _BYTE_ORDER BYTE_ORDER -#endif -#ifndef _LITTLE_ENDIAN -#define _LITTLE_ENDIAN LITTLE_ENDIAN -#endif -#elif defined (__SVR4) && defined (__sun) /* Solaris */ -#include <sys/types.h> -#if defined(__sparc) - /* SPARC here (big endian) */ -#define _BYTE_ORDER 4321 -#elif defined(__i386) -#define _BYTE_ORDER 1234 -#else -#error Solaris 2.5.1 had ppc support did it not? :-) -#endif -#undef Bool -#define Bool char -#undef SIGNED -#define SIGNED -#include <sys/types.h> -/* typedef unsigned int pthread_t; */ -#elif defined(WIN32) -#define _LITTLE_ENDIAN 1234 -#define _BYTE_ORDER _LITTLE_ENDIAN -#undef Bool -#define Bool int -#elif defined(_AIX) -#define _BYTE_ORDER 4321 -#undef Bool -#define Bool int -#else -#ifdef __osf__ -#include <machine/endian.h> -#define _BYTE_ORDER BYTE_ORDER -#else -#include <sys/endian.h> -#endif -#endif - -#ifndef _BYTE_ORDER -#define _BYTE_ORDER __BYTE_ORDER -#endif - -#if !defined(_LITTLE_ENDIAN) && defined(__LITTLE_ENDIAN) -#define _LITTLE_ENDIAN __LITTLE_ENDIAN -#endif - -#ifdef WIN32 -#include <sys/timeb.h> -#include <winsock.h> -#undef SOCKET -#define SOCKET int -#else -#define max(a,b) (((a)>(b))?(a):(b)) -#include <sys/time.h> -#include <netinet/in.h> -#define SOCKET int -#endif - -#ifndef INADDR_NONE -#define INADDR_NONE ((in_addr_t) 0xffffffff) -#endif - -#ifdef HAVE_PTHREADS -#include <pthread.h> -#if 0 /* debugging */ -#define LOCK(mutex) fprintf(stderr,"%s:%d LOCK(%s,0x%x)\n",__FILE__,__LINE__,#mutex,&(mutex)) -#define UNLOCK(mutex) fprintf(stderr,"%s:%d UNLOCK(%s,0x%x)\n",__FILE__,__LINE__,#mutex,&(mutex)) -#define MUTEX(mutex) int mutex -#define INIT_MUTEX(mutex) fprintf(stderr,"%s:%d INIT_MUTEX(%s,0x%x)\n",__FILE__,__LINE__,#mutex,&(mutex)) -#define TINI_MUTEX(mutex) fprintf(stderr,"%s:%d TINI_MUTEX(%s)\n",__FILE__,__LINE__,#mutex) -#define TSIGNAL(cond) fprintf(stderr,"%s:%d TSIGNAL(%s)\n",__FILE__,__LINE__,#cond) -#define WAIT(cond,mutex) /* fprintf(stderr,"%s:%d WAIT(%s,%s)\n",__FILE__,__LINE__,#cond,#mutex) */ -#define COND(cond) -#define INIT_COND(cond) fprintf(stderr,"%s:%d INIT_COND(%s)\n",__FILE__,__LINE__,#cond) -#define TINI_COND(cond) fprintf(stderr,"%s:%d TINI_COND(%s)\n",__FILE__,__LINE__,#cond) -#define IF_PTHREADS(x) -#else -#define LOCK(mutex) pthread_mutex_lock(&(mutex)); -#define UNLOCK(mutex) pthread_mutex_unlock(&(mutex)); -#define MUTEX(mutex) pthread_mutex_t (mutex) -#define INIT_MUTEX(mutex) pthread_mutex_init(&(mutex),NULL) -#define TINI_MUTEX(mutex) pthread_mutex_destroy(&(mutex)) -#define TSIGNAL(cond) pthread_cond_signal(&(cond)) -#define WAIT(cond,mutex) pthread_cond_wait(&(cond),&(mutex)) -#define TIMEDWAIT(cond,mutex,t) {struct timeval tv;\ - tv.tv_sec = (t) / 1000;\ - tv.tv_usec = ((t) % 1000) * 1000;\ - pthread_cond_timedwait(&(cond),&(mutex),(const timespec*)(&tv));} -#define COND(cond) pthread_cond_t (cond) -#define INIT_COND(cond) pthread_cond_init(&(cond),NULL) -#define TINI_COND(cond) pthread_cond_destroy(&(cond)) -#define IF_PTHREADS(x) x -#endif -#else -#define LOCK(mutex) -#define UNLOCK(mutex) -#define MUTEX(mutex) -#define INIT_MUTEX(mutex) -#define TINI_MUTEX(mutex) -#define TSIGNAL(cond) -#define WAIT(cond,mutex) this_is_unsupported -#define COND(cond) -#define INIT_COND(cond) -#define TINI_COND(cond) -#define IF_PTHREADS(x) -#endif - -/* end of stuff for autoconf */ - -/* if you use pthreads, but don't define HAVE_PTHREADS, the structs - get all mixed up. So this gives a linker error reminding you to compile - the library and your application (at least the parts including rfb.h) - with the same support for pthreads. */ -#ifdef HAVE_PTHREADS -#define rfbInitServer rfbInitServerWithPthreads -#else -#define rfbInitServer rfbInitServerWithoutPthreads -#endif - -#define MAX_ENCODINGS 10 - -struct _rfbClientRec; -struct _rfbScreenInfo; -struct rfbCursor; - -enum rfbNewClientAction { - RFB_CLIENT_ACCEPT, - RFB_CLIENT_ON_HOLD, - RFB_CLIENT_REFUSE -}; - -typedef void (*KbdAddEventProcPtr) (Bool down, KeySym keySym, struct _rfbClientRec* cl); -typedef void (*KbdReleaseAllKeysProcPtr) (struct _rfbClientRec* cl); -typedef void (*PtrAddEventProcPtr) (int buttonMask, int x, int y, struct _rfbClientRec* cl); -typedef void (*SetXCutTextProcPtr) (char* str,int len, struct _rfbClientRec* cl); -typedef struct rfbCursor* (*GetCursorProcPtr) (struct _rfbClientRec* pScreen); -typedef Bool (*SetTranslateFunctionProcPtr)(struct _rfbClientRec* cl); -typedef Bool (*PasswordCheckProcPtr)(struct _rfbClientRec* cl,const char* encryptedPassWord,int len); -typedef enum rfbNewClientAction (*NewClientHookPtr)(struct _rfbClientRec* cl); -typedef void (*DisplayHookPtr)(struct _rfbClientRec* cl); -typedef void (*InetdDisconnectPtr)(); - -typedef struct { - CARD32 count; - Bool is16; /* is the data format short? */ - union { - CARD8* bytes; - CARD16* shorts; - } data; /* there have to be count*3 entries */ -} rfbColourMap; - -/* - * Per-screen (framebuffer) structure. There can be as many as you wish, - * each serving different clients. However, you have to call - * rfbProcessEvents for each of these. - */ - -typedef struct _rfbScreenInfo -{ - int width; - int paddedWidthInBytes; - int height; - int depth; - int bitsPerPixel; - int sizeInBytes; - - Pixel blackPixel; - Pixel whitePixel; - - /* some screen specific data can be put into a struct where screenData - * points to. You need this if you have more than one screen at the - * same time while using the same functions. - */ - void* screenData; - - /* The following two members are used to minimise the amount of unnecessary - drawing caused by cursor movement. Whenever any drawing affects the - part of the screen where the cursor is, the cursor is removed first and - then the drawing is done (this is what the sprite routines test for). - Afterwards, however, we do not replace the cursor, even when the cursor - is logically being moved across the screen. We only draw the cursor - again just as we are about to send the client a framebuffer update. - - We need to be careful when removing and drawing the cursor because of - their relationship with the normal drawing routines. The drawing - routines can invoke the cursor routines, but also the cursor routines - themselves end up invoking drawing routines. - - Removing the cursor (rfbUndrawCursor) is eventually achieved by - doing a CopyArea from a pixmap to the screen, where the pixmap contains - the saved contents of the screen under the cursor. Before doing this, - however, we set cursorIsDrawn to FALSE. Then, when CopyArea is called, - it sees that cursorIsDrawn is FALSE and so doesn't feel the need to - (recursively!) remove the cursor before doing it. - - Putting up the cursor (rfbDrawCursor) involves a call to - PushPixels. While this is happening, cursorIsDrawn must be FALSE so - that PushPixels doesn't think it has to remove the cursor first. - Obviously cursorIsDrawn is set to TRUE afterwards. - - Another problem we face is that drawing routines sometimes cause a - framebuffer update to be sent to the RFB client. When the RFB client is - already waiting for a framebuffer update and some drawing to the - framebuffer then happens, the drawing routine sees that the client is - ready, so it calls rfbSendFramebufferUpdate. If the cursor is not drawn - at this stage, it must be put up, and so rfbSpriteRestoreCursor is - called. However, if the original drawing routine was actually called - from within rfbSpriteRestoreCursor or rfbSpriteRemoveCursor we don't - want this to happen. So both the cursor routines set - dontSendFramebufferUpdate to TRUE, and all the drawing routines check - this before calling rfbSendFramebufferUpdate. */ - - Bool cursorIsDrawn; /* TRUE if the cursor is currently drawn */ - Bool dontSendFramebufferUpdate; /* TRUE while removing or drawing the - cursor */ - - /* additions by libvncserver */ - - rfbPixelFormat rfbServerFormat; - rfbColourMap colourMap; /* set this if rfbServerFormat.trueColour==FALSE */ - const char* desktopName; - char rfbThisHost[255]; - - Bool autoPort; - int rfbPort; - SOCKET rfbListenSock; - int maxSock; - int maxFd; - fd_set allFds; - - Bool socketInitDone; - SOCKET inetdSock; - Bool inetdInitDone; - - int udpPort; - SOCKET udpSock; - struct _rfbClientRec* udpClient; - Bool udpSockConnected; - struct sockaddr_in udpRemoteAddr; - - int rfbMaxClientWait; - - /* http stuff */ - Bool httpInitDone; - int httpPort; - char* httpDir; - SOCKET httpListenSock; - SOCKET httpSock; - FILE* httpFP; - - PasswordCheckProcPtr passwordCheck; - void* rfbAuthPasswdData; - - /* this is the amount of milliseconds to wait at least before sending - * an update. */ - int rfbDeferUpdateTime; - char* rfbScreen; - Bool rfbAlwaysShared; - Bool rfbNeverShared; - Bool rfbDontDisconnect; - struct _rfbClientRec* rfbClientHead; - - /* cursor */ - int cursorX, cursorY,underCursorBufferLen; - char* underCursorBuffer; - Bool dontConvertRichCursorToXCursor; - struct rfbCursor* cursor; - - /* the frameBufferhas to be supplied by the serving process. - * The buffer will not be freed by - */ - char* frameBuffer; - KbdAddEventProcPtr kbdAddEvent; - KbdReleaseAllKeysProcPtr kbdReleaseAllKeys; - PtrAddEventProcPtr ptrAddEvent; - SetXCutTextProcPtr setXCutText; - GetCursorProcPtr getCursorPtr; - SetTranslateFunctionProcPtr setTranslateFunction; - - /* newClientHook is called just after a new client is created */ - NewClientHookPtr newClientHook; - /* displayHook is called just before a frame buffer update */ - DisplayHookPtr displayHook; - /* inetdDisconnectHook is called when the connection has been - interrupted before a client could connect. */ - InetdDisconnectPtr inetdDisconnectHook; -#ifdef HAVE_PTHREADS - MUTEX(cursorMutex); - Bool backgroundLoop; -#endif - -} rfbScreenInfo, *rfbScreenInfoPtr; - - -/* - * rfbTranslateFnType is the type of translation functions. - */ - -typedef void (*rfbTranslateFnType)(char *table, rfbPixelFormat *in, - rfbPixelFormat *out, - char *iptr, char *optr, - int bytesBetweenInputLines, - int width, int height); - - -/* - * vncauth.h - describes the functions provided by the vncauth library. - */ - -#define MAXPWLEN 8 -#define CHALLENGESIZE 16 - -extern int vncEncryptAndStorePasswd(char *passwd, char *fname); -extern char *vncDecryptPasswdFromFile(char *fname); -extern void vncRandomBytes(unsigned char *bytes); -extern void vncEncryptBytes(unsigned char *bytes, char *passwd); - -/* region stuff */ - -struct sraRegion; -typedef struct sraRegion* sraRegionPtr; - -/* - * Per-client structure. - */ - -typedef void (*ClientGoneHookPtr)(struct _rfbClientRec* cl); -typedef void (*NegotiationFinishedHookPtr)(struct _rfbClientRec* cl); - -typedef struct _rfbClientRec { - - /* back pointer to the screen */ - rfbScreenInfoPtr screen; - - /* private data. You should put any application client specific data - * into a struct and let clientData point to it. Don't forget to - * free the struct via clientGoneHook! - * - * This is useful if the IO functions have to behave client specific. - */ - void* clientData; - - ClientGoneHookPtr clientGoneHook; - - /* negotiationFinishedHook is called when the negotiation phase has ended */ - NegotiationFinishedHookPtr negotiationFinishedHook; - - SOCKET sock; - char *host; - -#ifdef HAVE_PTHREADS - pthread_t client_thread; -#endif - /* Possible client states: */ - enum { - RFB_PROTOCOL_VERSION, /* establishing protocol version */ - RFB_AUTHENTICATION, /* authenticating */ - RFB_INITIALISATION, /* sending initialisation messages */ - RFB_NORMAL /* normal protocol messages */ - } state; - - Bool reverseConnection; - Bool onHold; - Bool readyForSetColourMapEntries; - Bool useCopyRect; - int preferredEncoding; - int correMaxWidth, correMaxHeight; - - /* The following member is only used during VNC authentication */ - CARD8 authChallenge[CHALLENGESIZE]; - - /* The following members represent the update needed to get the client's - framebuffer from its present state to the current state of our - framebuffer. - - If the client does not accept CopyRect encoding then the update is - simply represented as the region of the screen which has been modified - (modifiedRegion). - - If the client does accept CopyRect encoding, then the update consists of - two parts. First we have a single copy from one region of the screen to - another (the destination of the copy is copyRegion), and second we have - the region of the screen which has been modified in some other way - (modifiedRegion). - - Although the copy is of a single region, this region may have many - rectangles. When sending an update, the copyRegion is always sent - before the modifiedRegion. This is because the modifiedRegion may - overlap parts of the screen which are in the source of the copy. - - In fact during normal processing, the modifiedRegion may even overlap - the destination copyRegion. Just before an update is sent we remove - from the copyRegion anything in the modifiedRegion. */ - - sraRegionPtr copyRegion; /* the destination region of the copy */ - int copyDX, copyDY; /* the translation by which the copy happens */ - - sraRegionPtr modifiedRegion; - - /* As part of the FramebufferUpdateRequest, a client can express interest - in a subrectangle of the whole framebuffer. This is stored in the - requestedRegion member. In the normal case this is the whole - framebuffer if the client is ready, empty if it's not. */ - - sraRegionPtr requestedRegion; - - /* The following member represents the state of the "deferred update" timer - - when the framebuffer is modified and the client is ready, in most - cases it is more efficient to defer sending the update by a few - milliseconds so that several changes to the framebuffer can be combined - into a single update. */ - - struct timeval startDeferring; - - /* translateFn points to the translation function which is used to copy - and translate a rectangle from the framebuffer to an output buffer. */ - - rfbTranslateFnType translateFn; - char *translateLookupTable; - rfbPixelFormat format; - - /* - * UPDATE_BUF_SIZE must be big enough to send at least one whole line of the - * framebuffer. So for a max screen width of say 2K with 32-bit pixels this - * means 8K minimum. - */ - -#define UPDATE_BUF_SIZE 30000 - - char updateBuf[UPDATE_BUF_SIZE]; - int ublen; - - /* statistics */ - - int rfbBytesSent[MAX_ENCODINGS]; - int rfbRectanglesSent[MAX_ENCODINGS]; - int rfbLastRectMarkersSent; - int rfbLastRectBytesSent; - int rfbCursorBytesSent; - int rfbCursorUpdatesSent; - int rfbFramebufferUpdateMessagesSent; - int rfbRawBytesEquivalent; - int rfbKeyEventsRcvd; - int rfbPointerEventsRcvd; - - /* zlib encoding -- necessary compression state info per client */ - - struct z_stream_s compStream; - Bool compStreamInited; - CARD32 zlibCompressLevel; - - /* tight encoding -- preserve zlib streams' state for each client */ - - z_stream zsStruct[4]; - Bool zsActive[4]; - int zsLevel[4]; - int tightCompressLevel; - int tightQualityLevel; - - /* soft cursor images */ - unsigned char *softSource; - int softSourceLen; - rfbSoftCursorSetImage *softCursorImages[rfbSoftCursorMaxImages]; - int nextUnusedSoftCursorImage; - - Bool enableLastRectEncoding; /* client supports LastRect encoding */ - Bool enableSoftCursorUpdates; /* client supports softcursor updates */ - Bool disableBackground; /* client wants to disable background */ - Bool enableCursorShapeUpdates; /* client supports cursor shape updates */ - Bool useRichCursorEncoding; /* rfbEncodingRichCursor is preferred */ - Bool cursorWasChanged; /* cursor shape update should be sent */ - Bool cursorWasMoved; /* cursor move shape update should be sent */ -#ifdef BACKCHANNEL - Bool enableBackChannel; -#endif - - struct _rfbClientRec *prev; - struct _rfbClientRec *next; - -#ifdef HAVE_PTHREADS - /* whenever a client is referenced, the refCount has to be incremented - and afterwards decremented, so that the client is not cleaned up - while being referenced. - Use the functions rfbIncrClientRef(cl) and rfbDecrClientRef(cl); - */ - int refCount; - MUTEX(refCountMutex); - COND(deleteCond); - - MUTEX(outputMutex); - MUTEX(updateMutex); - COND(updateCond); -#endif - -} rfbClientRec, *rfbClientPtr; - -/* - * This macro is used to test whether there is a framebuffer update needing to - * be sent to the client. - */ - -#define FB_UPDATE_PENDING(cl) \ - ((!(cl)->enableCursorShapeUpdates && !(cl)->screen->cursorIsDrawn) || \ - ((cl)->enableCursorShapeUpdates && (cl)->cursorWasChanged) || \ - !sraRgnEmpty((cl)->copyRegion) || !sraRgnEmpty((cl)->modifiedRegion)) - -/* - * Macros for endian swapping. - */ - -#define Swap16(s) ((((s) & 0xff) << 8) | (((s) >> 8) & 0xff)) - -#define Swap24(l) ((((l) & 0xff) << 16) | (((l) >> 16) & 0xff) | \ - (((l) & 0x00ff00))) - -#define Swap32(l) (((l) >> 24) | \ - (((l) & 0x00ff0000) >> 8) | \ - (((l) & 0x0000ff00) << 8) | \ - ((l) << 24)) - - -extern char rfbEndianTest; - -#define Swap16IfLE(s) (rfbEndianTest ? Swap16(s) : (s)) -#define Swap24IfLE(l) (rfbEndianTest ? Swap24(l) : (l)) -#define Swap32IfLE(l) (rfbEndianTest ? Swap32(l) : (l)) - -/* sockets.c */ - -extern int rfbMaxClientWait; - -extern void rfbInitSockets(rfbScreenInfoPtr rfbScreen); -extern void rfbDisconnectUDPSock(rfbScreenInfoPtr rfbScreen); -extern void rfbCloseClient(rfbClientPtr cl); -extern int ReadExact(rfbClientPtr cl, char *buf, int len); -extern int ReadExactTimeout(rfbClientPtr cl, char *buf, int len,int timeout); -extern int WriteExact(rfbClientPtr cl, const char *buf, int len); -extern void rfbCheckFds(rfbScreenInfoPtr rfbScreen,long usec); -extern int rfbConnect(rfbScreenInfoPtr rfbScreen, char* host, int port); -extern int ConnectToTcpAddr(char* host, int port); -extern int ListenOnTCPPort(int port); -extern int ListenOnUDPPort(int port); - -/* rfbserver.c */ - -extern rfbClientPtr pointerClient; - - -/* Routines to iterate over the client list in a thread-safe way. - Only a single iterator can be in use at a time process-wide. */ -typedef struct rfbClientIterator *rfbClientIteratorPtr; - -extern void rfbClientListInit(rfbScreenInfoPtr rfbScreen); -extern rfbClientIteratorPtr rfbGetClientIterator(rfbScreenInfoPtr rfbScreen); -extern rfbClientPtr rfbClientIteratorNext(rfbClientIteratorPtr iterator); -extern void rfbReleaseClientIterator(rfbClientIteratorPtr iterator); - -extern void rfbNewClientConnection(rfbScreenInfoPtr rfbScreen,int sock); -extern rfbClientPtr rfbNewClient(rfbScreenInfoPtr rfbScreen,int sock); -extern rfbClientPtr rfbNewUDPClient(rfbScreenInfoPtr rfbScreen); -extern rfbClientPtr rfbReverseConnection(rfbScreenInfoPtr rfbScreen,char *host, int port); -extern void rfbClientConnectionGone(rfbClientPtr cl); -extern void rfbProcessClientMessage(rfbClientPtr cl); -extern void rfbClientConnFailed(rfbClientPtr cl, char *reason); -extern void rfbNewUDPConnection(rfbScreenInfoPtr rfbScreen,int sock); -extern void rfbProcessUDPInput(rfbScreenInfoPtr rfbScreen); -extern Bool rfbSendPing(rfbClientPtr cl); -extern Bool rfbSendFramebufferUpdate(rfbClientPtr cl, sraRegionPtr updateRegion); -extern Bool rfbSendRectEncodingRaw(rfbClientPtr cl, int x,int y,int w,int h); -extern Bool rfbSendUpdateBuf(rfbClientPtr cl); -extern void rfbSendServerCutText(rfbScreenInfoPtr rfbScreen,char *str, int len); -extern Bool rfbSendCopyRegion(rfbClientPtr cl,sraRegionPtr reg,int dx,int dy); -extern Bool rfbSendLastRectMarker(rfbClientPtr cl); -extern Bool rfbSendSetColourMapEntries(rfbClientPtr cl, int firstColour, int nColours); -extern void rfbSendBell(rfbScreenInfoPtr rfbScreen); - -void rfbGotXCutText(rfbScreenInfoPtr rfbScreen, char *str, int len); - -#ifdef BACKCHANNEL -extern void rfbSendBackChannel(rfbScreenInfoPtr s,char* message,int len); -#endif - -/* translate.c */ - -extern Bool rfbEconomicTranslate; - -extern void rfbTranslateNone(char *table, rfbPixelFormat *in, - rfbPixelFormat *out, - char *iptr, char *optr, - int bytesBetweenInputLines, - int width, int height); -extern Bool rfbSetTranslateFunction(rfbClientPtr cl); -extern Bool rfbSetClientColourMap(rfbClientPtr cl, int firstColour, int nColours); -extern void rfbSetClientColourMaps(rfbScreenInfoPtr rfbScreen, int firstColour, int nColours); - -/* httpd.c */ - -extern int httpPort; -extern char *httpDir; - -extern void httpInitSockets(rfbScreenInfoPtr rfbScreen); -extern void httpCheckFds(rfbScreenInfoPtr rfbScreen); - - - -/* auth.c */ - -extern void rfbAuthNewClient(rfbClientPtr cl); -extern void rfbAuthProcessClientMessage(rfbClientPtr cl); - - -/* rre.c */ - -extern Bool rfbSendRectEncodingRRE(rfbClientPtr cl, int x,int y,int w,int h); - - -/* corre.c */ - -extern Bool rfbSendRectEncodingCoRRE(rfbClientPtr cl, int x,int y,int w,int h); - - -/* hextile.c */ - -extern Bool rfbSendRectEncodingHextile(rfbClientPtr cl, int x, int y, int w, - int h); - - -/* zlib.c */ - -/* Minimum zlib rectangle size in bytes. Anything smaller will - * not compress well due to overhead. - */ -#define VNC_ENCODE_ZLIB_MIN_COMP_SIZE (17) - -/* Set maximum zlib rectangle size in pixels. Always allow at least - * two scan lines. - */ -#define ZLIB_MAX_RECT_SIZE (128*256) -#define ZLIB_MAX_SIZE(min) ((( min * 2 ) > ZLIB_MAX_RECT_SIZE ) ? \ - ( min * 2 ) : ZLIB_MAX_RECT_SIZE ) - -extern Bool rfbSendRectEncodingZlib(rfbClientPtr cl, int x, int y, int w, - int h); - - -/* tight.c */ - -#define TIGHT_DEFAULT_COMPRESSION 6 - -extern Bool rfbTightDisableGradient; - -extern int rfbNumCodedRectsTight(rfbClientPtr cl, int x,int y,int w,int h); -extern Bool rfbSendRectEncodingTight(rfbClientPtr cl, int x,int y,int w,int h); - - -/* cursor.c */ - -typedef struct rfbCursor { - const char *source; /* points to bits */ - const char *mask; /* points to bits */ - unsigned short width, height, xhot, yhot; /* metrics */ - unsigned short foreRed, foreGreen, foreBlue; /* device-independent colour */ - unsigned short backRed, backGreen, backBlue; /* device-independent colour */ - unsigned char *richSource; /* source bytes for a rich cursor */ -} rfbCursor, *rfbCursorPtr; - -extern Bool rfbSendCursorShape(rfbClientPtr cl/*, rfbScreenInfoPtr pScreen*/); -extern Bool rfbSendSoftCursor(rfbClientPtr cl, Bool cursorWasChanged); -extern unsigned char rfbReverseByte[0x100]; -extern void rfbConvertLSBCursorBitmapOrMask(int width,int height,unsigned char* bitmap); -extern rfbCursorPtr rfbMakeXCursor(int width,int height,char* cursorString,char* maskString); -extern char* rfbMakeMaskForXCursor(int width,int height,char* cursorString); -extern void MakeXCursorFromRichCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr cursor); -extern void MakeRichCursorFromXCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr cursor); -extern void MakeSoftCursor(rfbClientPtr cl,rfbCursorPtr cursor); -extern void rfbFreeCursor(rfbCursorPtr cursor); -extern void rfbDrawCursor(rfbScreenInfoPtr rfbScreen); -extern void rfbUndrawCursor(rfbScreenInfoPtr rfbScreen); -extern void rfbSetCursor(rfbScreenInfoPtr rfbScreen,rfbCursorPtr c,Bool freeOld); - -/* cursor handling for the pointer */ -extern void defaultPtrAddEvent(int buttonMask,int x,int y,rfbClientPtr cl); - -/* stats.c */ - -extern void rfbResetStats(rfbClientPtr cl); -extern void rfbPrintStats(rfbClientPtr cl); - -/* font.c */ - -typedef struct rfbFontData { - unsigned char* data; - /* - metaData is a 256*5 array: - for each character - (offset,width,height,x,y) - */ - int* metaData; -} rfbFontData,* rfbFontDataPtr; - -int rfbDrawChar(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,int x,int y,unsigned char c,Pixel colour); -void rfbDrawString(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,int x,int y,const char* string,Pixel colour); -/* if colour==backColour, background is transparent */ -int rfbDrawCharWithClip(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,int x,int y,unsigned char c,int x1,int y1,int x2,int y2,Pixel colour,Pixel backColour); -void rfbDrawStringWithClip(rfbScreenInfoPtr rfbScreen,rfbFontDataPtr font,int x,int y,const char* string,int x1,int y1,int x2,int y2,Pixel colour,Pixel backColour); -int rfbWidthOfString(rfbFontDataPtr font,const char* string); -int rfbWidthOfChar(rfbFontDataPtr font,unsigned char c); -void rfbFontBBox(rfbFontDataPtr font,unsigned char c,int* x1,int* y1,int* x2,int* y2); -/* this returns the smallest box enclosing any character of font. */ -void rfbWholeFontBBox(rfbFontDataPtr font,int *x1, int *y1, int *x2, int *y2); - -/* dynamically load a linux console font (4096 bytes, 256 glyphs a 8x16 */ -rfbFontDataPtr rfbLoadConsoleFont(char *filename); -/* free a dynamically loaded font */ -void rfbFreeFont(rfbFontDataPtr font); - -/* draw.c */ - -/* You have to call rfbUndrawCursor before using these functions */ -void rfbFillRect(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2,Pixel col); -void rfbDrawPixel(rfbScreenInfoPtr s,int x,int y,Pixel col); -void rfbDrawLine(rfbScreenInfoPtr s,int x1,int y1,int x2,int y2,Pixel col); - -/* selbox.c */ - -/* this opens a modal select box. list is an array of strings, the end marked - with a NULL. - It returns the index in the list or -1 if cancelled or something else - wasn't kosher. */ -typedef void (*SelectionChangedHookPtr)(int _index); -extern int rfbSelectBox(rfbScreenInfoPtr rfbScreen, - rfbFontDataPtr font, char** list, - int x1, int y1, int x2, int y2, - Pixel foreColour, Pixel backColour, - int border,SelectionChangedHookPtr selChangedHook); - -/* cargs.c */ - -extern void rfbUsage(void); -extern void rfbPurgeArguments(int* argc,int* position,int count,char *argv[]); -extern void rfbProcessArguments(rfbScreenInfoPtr rfbScreen,int* argc, char *argv[]); -extern void rfbProcessSizeArguments(int* width,int* height,int* bpp,int* argc, char *argv[]); - -/* main.c */ - -extern void rfbLogEnable(int enabled); -extern void rfbLog(const char *format, ...); -extern void rfbLogPerror(const char *str); - -void rfbScheduleCopyRect(rfbScreenInfoPtr rfbScreen,int x1,int y1,int x2,int y2,int dx,int dy); -void rfbScheduleCopyRegion(rfbScreenInfoPtr rfbScreen,sraRegionPtr copyRegion,int dx,int dy); - -void rfbDoCopyRect(rfbScreenInfoPtr rfbScreen,int x1,int y1,int x2,int y2,int dx,int dy); -void rfbDoCopyRegion(rfbScreenInfoPtr rfbScreen,sraRegionPtr copyRegion,int dx,int dy); - -void rfbMarkRectAsModified(rfbScreenInfoPtr rfbScreen,int x1,int y1,int x2,int y2); -void rfbMarkRegionAsModified(rfbScreenInfoPtr rfbScreen,sraRegionPtr modRegion); -void doNothingWithClient(rfbClientPtr cl); -enum rfbNewClientAction defaultNewClientHook(rfbClientPtr cl); - -/* to check against plain passwords */ -Bool rfbCheckPasswordByList(rfbClientPtr cl,const char* response,int len); - -/* functions to make a vnc server */ -extern rfbScreenInfoPtr rfbGetScreen(int* argc,char** argv, - int width,int height,int bitsPerSample,int samplesPerPixel, - int bytesPerPixel); -extern void rfbInitServer(rfbScreenInfoPtr rfbScreen); -extern void rfbScreenCleanup(rfbScreenInfoPtr screenInfo); - -/* functions to accept/refuse a client that has been put on hold - by a NewClientHookPtr function. Must not be called in other - situations. */ -extern void rfbStartOnHoldClient(rfbClientPtr cl); -extern void rfbRefuseOnHoldClient(rfbClientPtr cl); - -/* call one of these two functions to service the vnc clients. - usec are the microseconds the select on the fds waits. - if you are using the event loop, set this to some value > 0, so the - server doesn't get a high load just by listening. */ - -extern void rfbRunEventLoop(rfbScreenInfoPtr screenInfo, long usec, Bool runInBackground); -extern void rfbProcessEvents(rfbScreenInfoPtr screenInfo,long usec); - -#endif - -#if(defined __cplusplus) -} -#endif |