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authordscho <dscho>2002-12-06 16:03:50 +0000
committerdscho <dscho>2002-12-06 16:03:50 +0000
commit4d87189420b6225da7f38aa71aee840d816bd570 (patch)
tree2de78669b8dea0e6f8d6ae4e4d17ff825b5c6a88 /x11vnc.c
parentd60fda117b1d72d12984a07a4444d36a69da639e (diff)
downloadlibtdevnc-4d871894.tar.gz
libtdevnc-4d871894.zip
compiler warnings, contrib directory, new x11vnc from Karl Runge
Diffstat (limited to 'x11vnc.c')
-rw-r--r--x11vnc.c583
1 files changed, 0 insertions, 583 deletions
diff --git a/x11vnc.c b/x11vnc.c
deleted file mode 100644
index ee21d03..0000000
--- a/x11vnc.c
+++ /dev/null
@@ -1,583 +0,0 @@
-/* This file (x11vnc.c) is part of LibVNCServer.
- It is a small clone of x0rfbserver by HexoNet, demonstrating the
- capabilities of LibVNCServer.
-*/
-
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
-#include <X11/extensions/XTest.h>
-#ifndef NO_SHM
-#include <X11/extensions/XShm.h>
-#include <sys/shm.h>
-#endif
-#define KEYSYM_H
-#undef Bool
-#define KeySym RFBKeySym
-#include "rfb.h"
-
-Display *dpy = 0;
-int window;
-int c=0,blockLength = 32;
-int tileX=0,tileY=0,tileWidth=32,tileHeight=32*2,dontTile=TRUE;
-Bool gotInput = FALSE;
-Bool viewOnly = FALSE;
-Bool sharedMode = FALSE;
-
-Bool disconnectAfterFirstClient = TRUE;
-
-/* keyboard handling */
-#define KBDDEBUG
-
-char modifiers[0x100];
-KeyCode keycodes[0x100],leftShiftCode,rightShiftCode,altGrCode;
-
-void init_keycodes()
-{
- KeySym key,*keymap;
- int i,j,minkey,maxkey,syms_per_keycode;
-
- memset(modifiers,-1,sizeof(modifiers));
-
- XDisplayKeycodes(dpy,&minkey,&maxkey);
- keymap=XGetKeyboardMapping(dpy,minkey,(maxkey - minkey + 1),&syms_per_keycode);
-
-#ifdef KBDDEBUG
- fprintf(stderr,"minkey=%d, maxkey=%d, syms_per_keycode=%d\n",
- minkey,maxkey,syms_per_keycode);
-#endif
- for (i = minkey; i <= maxkey; i++)
- for(j=0;j<syms_per_keycode;j++) {
- key=keymap[(i-minkey)*syms_per_keycode+j];
-#ifdef KBDDEBUG
- fprintf(stderr,"keymap(i=0x%x,j=%d)==0x%lx\n",i,j,key);
-#endif
- if(key>=' ' && key<0x100 && i==XKeysymToKeycode(dpy,key)) {
- keycodes[key]=i;
- modifiers[key]=j;
-#ifdef KBDDEBUG
- fprintf(stderr,"key 0x%lx (%c): keycode=0x%x, modifier=%d\n",
- key,(char)key,i,j);
-#endif
- }
- }
-
- leftShiftCode=XKeysymToKeycode(dpy,XK_Shift_L);
- rightShiftCode=XKeysymToKeycode(dpy,XK_Shift_R);
- altGrCode=XKeysymToKeycode(dpy,XK_Mode_switch);
-
-#ifdef KBDDEBUG
- fprintf(stderr,"leftShift=0x%x, rightShift=0x%x, altGr=0x%x\n",
- leftShiftCode,rightShiftCode,altGrCode);
-#endif
-
- XFree ((char *) keymap);
-}
-
-static Bool shutDownServer=0;
-
-/* the hooks */
-
-void clientGone(rfbClientPtr cl)
-{
- shutDownServer=-1;
-}
-
-enum rfbNewClientAction newClient(rfbClientPtr cl)
-{
- if(disconnectAfterFirstClient)
- cl->clientGoneHook = clientGone;
- if(viewOnly)
- cl->clientData = (void*)-1;
- else
- cl->clientData = (void*)0;
- return(RFB_CLIENT_ACCEPT);
-}
-
-#define LEFTSHIFT 1
-#define RIGHTSHIFT 2
-#define ALTGR 4
-char ModifierState = 0;
-
-/* this function adjusts the modifiers according to mod (as from modifiers) and ModifierState */
-
-void tweakModifiers(signed char mod,Bool down)
-{
- Bool isShift=ModifierState&(LEFTSHIFT|RIGHTSHIFT);
-#ifdef KBDDEBUG
- fprintf(stderr,"tweakModifiers: 0x%x %s\n",
- mod,down?"down":"up");
-#endif
- if(mod<0) return;
- if(isShift && mod!=1) {
- if(ModifierState&LEFTSHIFT)
- XTestFakeKeyEvent(dpy,leftShiftCode,!down,CurrentTime);
- if(ModifierState&RIGHTSHIFT)
- XTestFakeKeyEvent(dpy,rightShiftCode,!down,CurrentTime);
- }
- if(!isShift && mod==1)
- XTestFakeKeyEvent(dpy,leftShiftCode,down,CurrentTime);
-
- if(ModifierState&ALTGR && mod!=2)
- XTestFakeKeyEvent(dpy,altGrCode,!down,CurrentTime);
- if(!(ModifierState&ALTGR) && mod==2)
- XTestFakeKeyEvent(dpy,altGrCode,down,CurrentTime);
-}
-
-void keyboard(Bool down,KeySym keySym,rfbClientPtr cl)
-{
- if(((int)cl->clientData)==-1) return; /* viewOnly */
-
-#define ADJUSTMOD(sym,state) \
- if(keySym==sym) { if(down) ModifierState|=state; else ModifierState&=~state; }
-
- ADJUSTMOD(XK_Shift_L,LEFTSHIFT)
- ADJUSTMOD(XK_Shift_R,RIGHTSHIFT)
- ADJUSTMOD(XK_Mode_switch,ALTGR)
-
-#ifdef KBDDEBUG
- fprintf(stderr,"keyboard: down=%s, keySym=0x%lx (%s), ModState=0x%x\n",
- down?"down":"up",keySym,XKeysymToString(keySym),ModifierState);
-#endif
-
- if(keySym>=' ' && keySym<0x100) {
- KeyCode k;
- if(down)
- tweakModifiers(modifiers[keySym],True);
- //tweakModifiers(modifiers[keySym],down);
- //k = XKeysymToKeycode( dpy,keySym );
- k = keycodes[keySym];
- if(k!=NoSymbol) {
- XTestFakeKeyEvent(dpy,k,down,CurrentTime);
- gotInput = TRUE;
- }
- if(down)
- tweakModifiers(modifiers[keySym],False);
- gotInput = TRUE;
- } else {
- KeyCode k = XKeysymToKeycode( dpy,keySym );
- if(k!=NoSymbol) {
- XTestFakeKeyEvent(dpy,k,down,CurrentTime);
- gotInput = TRUE;
- }
- }
-}
-
-int oldButtonMask = 0;
-
-void mouse(int buttonMask,int x,int y,rfbClientPtr cl)
-{
- int i=0;
-
- if(((int)cl->clientData)==-1) return; /* viewOnly */
-
- XTestFakeMotionEvent(dpy,0,x,y,CurrentTime );
- while(i<5) {
- if ((oldButtonMask&(1<<i))!=(buttonMask&(1<<i)))
- XTestFakeButtonEvent(dpy,i+1,(buttonMask&(1<<i))?True:False,CurrentTime);
- i++;
- }
- oldButtonMask = buttonMask;
- //fprintf(stderr,"-");
- gotInput = TRUE;
-}
-
-/* the X11 interaction */
-
-#ifndef NO_SHM
-Bool useSHM = TRUE;
-XShmSegmentInfo shminfo;
-#else
-Bool useSHM = FALSE;
-#endif
-
-void getImage(int bpp,Display *dpy,int xscreen,XImage **i,int x,int y,int width,int height)
-{
- if(width<=0) width=DisplayWidth(dpy,xscreen);
- if(height<=0) height=DisplayHeight(dpy,xscreen);
- if(useSHM && bpp>0) {
- static Bool firstTime = TRUE;
- if(firstTime) {
- firstTime = FALSE;
- *i = XShmCreateImage(dpy,
- DefaultVisual( dpy, xscreen ),
- bpp,
- ZPixmap,
- NULL,
- &shminfo,
- width,height);
-
- if(*i == 0) {
- useSHM = FALSE;
- getImage(bpp,dpy,xscreen,i,x,y,width,height);
- return;
- }
-
- shminfo.shmid = shmget( IPC_PRIVATE,
- (*i)->bytes_per_line * (*i)->height,
- IPC_CREAT | 0777 );
- shminfo.shmaddr = (*i)->data = (char *) shmat( shminfo.shmid, 0, 0 );
- shminfo.readOnly = False;
- XShmAttach( dpy, &shminfo );
- }
-
- if(x==0 && y==0 && width==DisplayWidth(dpy,xscreen) && height==DisplayHeight(dpy,xscreen))
- XShmGetImage(dpy,window,*i,0,0,AllPlanes);
- else
- XGetSubImage(dpy,window,x,y,width,height,AllPlanes,ZPixmap,*i,0,0);
- } else {
- *i = XGetImage(dpy,window,x,y,width,height,AllPlanes,ZPixmap );
- }
-}
-
-void checkForImageUpdates(rfbScreenInfoPtr s,char *b,int rowstride,int x,int y,int width,int height)
-{
- Bool changed;
- int i,j,k,l1,l2,x1,y1;
- int bpp=s->bitsPerPixel/8;
-
- for(j=0;j<height;j+=blockLength)
- for(i=0;i<width;i+=blockLength) {
- y1=j+blockLength; if(y1>height) y1=height;
- x1=i+blockLength; if(x1>width) x1=width;
- y1*=rowstride;
- x1*=bpp;
- changed=FALSE;
- for(l1=j*rowstride,l2=(j+y)*s->paddedWidthInBytes+x*bpp;l1<y1;l1+=rowstride,l2+=s->paddedWidthInBytes)
- for(k=i*bpp;k<x1;k++)
- if(s->frameBuffer[l2+k]!=b[l1+k]) {
- // fprintf(stderr,"changed: %d, %d\n",k,l);
- changed=TRUE;
- goto changed_p;
- }
- if(changed) {
- changed_p:
- for(l1+=i*bpp,l2+=i*bpp;l1<y1;l1+=rowstride,l2+=s->paddedWidthInBytes)
- memcpy(/*b+l,*/s->frameBuffer+l2,b+l1,x1-i*bpp);
- rfbMarkRectAsModified(s,x+i,y+j,x+i+blockLength,y+j+blockLength);
- }
- }
-}
-
-int probeX=0,probeY=0;
-
-void probeScreen(rfbScreenInfoPtr s,int xscreen)
-{
- int i,j,/*pixel,i1,*/j1,
- bpp=s->rfbServerFormat.bitsPerPixel/8,/*mask=(1<<bpp)-1,*/
- rstride=s->paddedWidthInBytes;
- XImage* im;
- //fprintf(stderr,"/%d,%d",probeX,probeY);
-#if 0
- probeX++;
- if(probeX>=tileWidth) {
- probeX=0;
- probeY++;
- if(probeY>=tileHeight)
- probeY=0;
- }
-#else
- probeX=(rand()%tileWidth);
- probeY=(rand()%tileHeight);
-#endif
-
- for(j=probeY;j<s->height;j+=tileHeight)
- for(i=0/*probeX*/;i<s->width;i+=tileWidth) {
- im=XGetImage(dpy,window,i,j,tileWidth/*1*/,1,AllPlanes,ZPixmap);
- /* for(i1=0;i1<bpp && im->data[i1]==(s->frameBuffer+i*bpp+j*rstride)[i1];i1++);
- if(i1<bpp) { */
- if(memcmp(im->data,s->frameBuffer+i*bpp+j*rstride,tileWidth*bpp)) {
- /* do update */
- int x=i/*-probeX*/,w=(x+tileWidth>s->width)?s->width-x:tileWidth,
- y=j-probeY,h=(y+tileHeight>s->height)?s->height-y:tileHeight;
-
- XDestroyImage(im);
- //getImage(bpp,dpy,xscreen,&im,x,y,w,h);
- //fprintf(stderr,"GetImage(%d,%d,%d,%d)",x,y,w,h);
- im = XGetImage(dpy,window,x,y,w,h,AllPlanes,ZPixmap );
- for(j1=0;j1<h;j1++)
- memcpy(s->frameBuffer+x*bpp+(y+j1)*rstride,
- im->data+j1*im->bytes_per_line,bpp*w);
- //checkForImageUpdates(s,im->data,rstride,x,y,w,h);
- //if(0 && !useSHM)
- XDestroyImage(im);
- //memcpy(s->frameBuffer+i*bpp+j*rstride,&pixel,bpp);
- rfbMarkRectAsModified(s,x,y,x+w,y+h);
- //fprintf(stderr,"%d:%d:%x\n",i,j,pixel);
- //fprintf(stderr,"*");
- } else
- XDestroyImage(im);
- }
-}
-
-#define LOCAL_CONTROL
-
-#ifdef LOCAL_CONTROL
-#include "1instance.c"
-#endif
-
-/* the main program */
-
-int main(int argc,char** argv)
-{
- //Screen *sc;
- //Colormap cm;
- XImage *framebufferImage;
- char *backupImage;
- int xscreen,i;
- rfbScreenInfoPtr screen;
- int maxMsecsToConnect = 5000; /* a maximum of 5 seconds to connect */
- int updateCounter; /* about every 50 ms a screen update should be made. */
-
-#ifdef LOCAL_CONTROL
- char message[1024];
- single_instance_struct single_instance = { "/tmp/x11vnc_control" };
-
- open_control_file(&single_instance);
-#endif
-
- for(i=argc-1;i>0;i--)
-#ifdef LOCAL_CONTROL
- if(i<argc-1 && !strcmp(argv[i],"-toggleviewonly")) {
- if(strlen(argv[i+1])>1022)
- argv[i+1][1022]=0;
- sprintf(message,"t%s",argv[i+1]);
- send_message(&single_instance,message);
- exit(0);
- } else if(!strcmp(argv[i],"-listclients")) {
- fprintf(stderr,"list clients\n");
- send_message(&single_instance,"l");
- exit(0);
- } else
-#ifdef BACKCHANNEL
- if(i<argc-1 && !strcmp(argv[i],"-backchannel")) {
- if(strlen(argv[i+1])>1022)
- argv[i+1][1022]=0;
- sprintf(message,"b%s",argv[i+1]);
- send_message(&single_instance,message);
- exit(0);
- } else
-#endif
-#endif
- if(i<argc-1 && strcmp(argv[i],"-display")==0) {
- fprintf(stderr,"Using display %s\n",argv[i+1]);
- dpy = XOpenDisplay(argv[i+1]);
- if(dpy==0) {
- fprintf(stderr,"Couldn't connect to display \"%s\".\n",argv[i+1]);
- exit(1);
- }
- } else if(i<argc-1 && strcmp(argv[i],"-wait4client")==0) {
- maxMsecsToConnect = atoi(argv[i+1]);
- } else if(i<argc-1 && strcmp(argv[i],"-update")==0) {
- updateCounter = atoi(argv[i+1]);
- } else if(strcmp(argv[i],"-noshm")==0) {
- useSHM = FALSE;
- } else if(strcmp(argv[i],"-runforever")==0) {
- disconnectAfterFirstClient = FALSE;
- } else if(strcmp(argv[i],"-tile")==0) {
- dontTile=FALSE;
- } else if(strcmp(argv[i],"-viewonly")==0) {
- viewOnly=TRUE;
- } else if(strcmp(argv[i],"-shared")==0) {
- sharedMode=TRUE;
- }
-
- updateCounter = dontTile?20:1;
-
- if(dpy==0)
- dpy = XOpenDisplay("");
- if(dpy==0) {
- fprintf(stderr,"Couldn't open display!\n");
- exit(2);
- }
-
- xscreen = DefaultScreen(dpy);
- window = RootWindow(dpy,xscreen);
- //XTestGrabControl(dpy,True);
-
- init_keycodes();
-
- getImage(0,dpy,xscreen,&framebufferImage,0,0,-1,-1);
-
- screen = rfbGetScreen(&argc,argv,framebufferImage->width,
- framebufferImage->height,
- framebufferImage->bits_per_pixel,
- 8,
- framebufferImage->bits_per_pixel/8);
-
- screen->paddedWidthInBytes = framebufferImage->bytes_per_line;
-
- screen->rfbServerFormat.bitsPerPixel = framebufferImage->bits_per_pixel;
- screen->rfbServerFormat.depth = framebufferImage->depth;
- //rfbEndianTest = framebufferImage->bitmap_bit_order != MSBFirst;
- screen->rfbServerFormat.trueColour = TRUE;
-
- if ( screen->rfbServerFormat.bitsPerPixel == 8 ) {
- if(CellsOfScreen(ScreenOfDisplay(dpy,xscreen))) {
- XColor color[256];
- int i;
- screen->colourMap.count = 256;
- screen->rfbServerFormat.trueColour = FALSE;
- screen->colourMap.is16 = TRUE;
- for(i=0;i<256;i++)
- color[i].pixel=i;
- XQueryColors(dpy,DefaultColormap(dpy,xscreen),color,256);
- screen->colourMap.data.shorts = (unsigned short*)malloc(3*sizeof(short)*screen->colourMap.count);
- for(i=0;i<screen->colourMap.count;i++) {
- screen->colourMap.data.shorts[i*3+0] = color[i].red;
- screen->colourMap.data.shorts[i*3+1] = color[i].green;
- screen->colourMap.data.shorts[i*3+2] = color[i].blue;
- }
- } else {
- screen->rfbServerFormat.redShift = 0;
- screen->rfbServerFormat.greenShift = 2;
- screen->rfbServerFormat.blueShift = 5;
- screen->rfbServerFormat.redMax = 3;
- screen->rfbServerFormat.greenMax = 7;
- screen->rfbServerFormat.blueMax = 3;
- }
- } else {
- screen->rfbServerFormat.redShift = 0;
- if ( framebufferImage->red_mask )
- while ( ! ( framebufferImage->red_mask & (1 << screen->rfbServerFormat.redShift) ) )
- screen->rfbServerFormat.redShift++;
- screen->rfbServerFormat.greenShift = 0;
- if ( framebufferImage->green_mask )
- while ( ! ( framebufferImage->green_mask & (1 << screen->rfbServerFormat.greenShift) ) )
- screen->rfbServerFormat.greenShift++;
- screen->rfbServerFormat.blueShift = 0;
- if ( framebufferImage->blue_mask )
- while ( ! ( framebufferImage->blue_mask & (1 << screen->rfbServerFormat.blueShift) ) )
- screen->rfbServerFormat.blueShift++;
- screen->rfbServerFormat.redMax = framebufferImage->red_mask >> screen->rfbServerFormat.redShift;
- screen->rfbServerFormat.greenMax = framebufferImage->green_mask >> screen->rfbServerFormat.greenShift;
- screen->rfbServerFormat.blueMax = framebufferImage->blue_mask >> screen->rfbServerFormat.blueShift;
- }
-
- backupImage = malloc(screen->height*screen->paddedWidthInBytes);
- memcpy(backupImage,framebufferImage->data,screen->height*screen->paddedWidthInBytes);
-
- screen->frameBuffer = backupImage;
- screen->cursor = 0;
- screen->newClientHook = newClient;
-
- screen->kbdAddEvent = keyboard;
- screen->ptrAddEvent = mouse;
-
- if(sharedMode) {
- screen->rfbAlwaysShared = TRUE;
- }
-
- screen->rfbDeferUpdateTime = 1;
- updateCounter /= screen->rfbDeferUpdateTime;
-
- rfbInitServer(screen);
-
- c=0;
- while(1) {
- if(screen->rfbClientHead)
- maxMsecsToConnect = 1<<16;
- else {
- maxMsecsToConnect -= screen->rfbDeferUpdateTime;
- if(maxMsecsToConnect<0) {
- fprintf(stderr,"Maximum time to connect reached. Exiting.\n");
- XTestDiscard(dpy);
- exit(2);
- }
- }
-
-#ifdef LOCAL_CONTROL
- if(get_next_message(message,1024,&single_instance,50)) {
- if(message[0]=='l' && message[1]==0) {
- rfbClientPtr cl;
- int i;
- for(i=0,cl=screen->rfbClientHead;cl;cl=cl->next,i++)
- fprintf(stderr,"%02d: %s\n",i,cl->host);
- } else if(message[0]=='t') {
- rfbClientPtr cl;
- for(cl=screen->rfbClientHead;cl;cl=cl->next)
- if(!strcmp(message+1,cl->host)) {
- cl->clientData=(void*)((cl->clientData==0)?-1:0);
- break;
- }
- }
-#ifdef BACKCHANNEL
- else if(message[0]=='b')
- rfbSendBackChannel(screen,message+1,strlen(message+1));
-#endif
- }
-#endif
-
- rfbProcessEvents(screen,-1);
- if(shutDownServer) {
- free(backupImage);
- rfbScreenCleanup(screen);
- XFree(dpy);
-#ifndef NO_SHM
- XShmDetach(dpy,&shminfo);
-#endif
- exit(0);
- }
-
- if(dontTile) {
- if(gotInput) {
- gotInput = FALSE;
- c=updateCounter;
- } else if(screen->rfbClientHead && c++>updateCounter) {
- c=0;
- //fprintf(stderr,"*");
- if(!useSHM)
- framebufferImage->f.destroy_image(framebufferImage);
- if(dontTile) {
- getImage(screen->rfbServerFormat.bitsPerPixel,dpy,xscreen,&framebufferImage,0,0,screen->width,screen->height);
- checkForImageUpdates(screen,framebufferImage->data,framebufferImage->bytes_per_line,
- 0,0,screen->width,screen->height);
- } else {
- /* old tile code. Eventually to be removed (TODO) */
- char isRightEdge = tileX+tileWidth>=screen->width;
- char isLowerEdge = tileY+tileHeight>=screen->height;
- getImage(screen->rfbServerFormat.bitsPerPixel,dpy,xscreen,&framebufferImage,tileX,tileY,
- isRightEdge?screen->width-tileX:tileWidth,
- isLowerEdge?screen->height-tileY:tileHeight);
- checkForImageUpdates(screen,framebufferImage->data,framebufferImage->bytes_per_line,
- tileX,tileY,
- isRightEdge?screen->width-tileX:tileWidth,
- isLowerEdge?screen->height-tileY:tileHeight);
- if(isRightEdge) {
- tileX=0;
- if(isLowerEdge)
- tileY=0;
- else
- tileY+=tileHeight;
- } else
- tileX+=tileWidth;
- }
- }
- } else if(c++>updateCounter) {
- c=0;
- probeScreen(screen,xscreen);
- }
-
-#ifdef WRITE_SNAPS
- {
- int i,j,r,g,b;
- FILE* f=fopen("test.pnm","wb");
- fprintf(f,"P6\n%d %d\n255\n",screen->width,screen->height);
- for(j=0;j<screen->height;j++)
- for(i=0;i<screen->width;i++) {
- //r=screen->frameBuffer[j*screen->paddedWidthInBytes+i*2];
- r=framebufferImage->data[j*screen->paddedWidthInBytes+i*2];
- fputc(((r>>screen->rfbServerFormat.redShift)&screen->rfbServerFormat.redMax)*255/screen->rfbServerFormat.redMax,f);
- fputc(((r>>screen->rfbServerFormat.greenShift)&screen->rfbServerFormat.greenMax)*255/screen->rfbServerFormat.greenMax,f);
- fputc(((r>>screen->rfbServerFormat.blueShift)&screen->rfbServerFormat.blueMax)*255/screen->rfbServerFormat.blueMax,f);
- }
- fclose(f);
- }
-#endif
- }
-#ifndef NO_SHM
- //XShmDetach(dpy,framebufferImage);
-#endif
-
- return(0);
-}