Initial revision

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@2 3789f03b-4d11-0410-bbf8-ca57d06f2519

1 files changed, 277 insertions, 0 deletions

diff --git a/x0vncserver/x0vncserver.cxx b/x0vncserver/x0vncserver.cxx
new file mode 100644
index 00000000..df40c33a
--- /dev/null
+++ b/x0vncserver/x0vncserver.cxx
@@ -0,0 +1,277 @@
+/* Copyright (C) 2002-2004 RealVNC Ltd.  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., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+#include <strings.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <errno.h>
+#include <rfb/Logger_stdio.h>
+#include <rfb/LogWriter.h>
+#include <rfb/VNCServerST.h>
+#include <rfb/Configuration.h>
+#include <rfb/SSecurityFactoryStandard.h>
+
+#include <network/TcpSocket.h>
+
+#include "Image.h"
+#include <signal.h>
+#include <X11/X.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/extensions/XTest.h>
+
+
+#include <rfb/Encoder.h>
+
+using namespace rfb;
+using namespace rdr;
+using namespace network;
+
+LogWriter vlog("main");
+
+StringParameter displayname("display", "The X display", "");
+IntParameter rfbport("rfbport", "TCP port to listen for RFB protocol",5900);
+VncAuthPasswdFileParameter vncAuthPasswdFile;
+
+static void CleanupSignalHandler(int sig)
+{
+  // CleanupSignalHandler allows C++ object cleanup to happen because it calls
+  // exit() rather than the default which is to abort.
+  fprintf(stderr,"CleanupSignalHandler called\n");
+  exit(1);
+}
+
+
+class XDesktop : public SDesktop, public rfb::ColourMap
+{
+public:
+  XDesktop(Display* dpy_)
+    : dpy(dpy_), pb(0), server(0), oldButtonMask(0), haveXtest(false)
+  {
+    int xtestEventBase;
+    int xtestErrorBase;
+    int major, minor;
+
+    if (XTestQueryExtension(dpy, &xtestEventBase,
+                            &xtestErrorBase, &major, &minor)) {
+      XTestGrabControl(dpy, True);
+      vlog.info("XTest extension present - version %d.%d",major,minor);
+      haveXtest = true;
+    } else {
+      vlog.info("XTest extension not present");
+      vlog.info("unable to inject events or display while server is grabbed");
+    }
+
+    int dpyWidth = DisplayWidth(dpy, DefaultScreen(dpy));
+    int dpyHeight = DisplayHeight(dpy, DefaultScreen(dpy));
+    Visual* vis = DefaultVisual(dpy, DefaultScreen(dpy));
+
+    image = new Image(dpy, dpyWidth, dpyHeight);
+    image->get(DefaultRootWindow(dpy));
+
+    pf.bpp = image->xim->bits_per_pixel;
+    pf.depth = image->xim->depth;
+    pf.bigEndian = (image->xim->byte_order == MSBFirst);
+    pf.trueColour = (vis->c_class == TrueColor);
+    pf.redShift   = ffs(vis->red_mask) - 1;
+    pf.greenShift = ffs(vis->green_mask) - 1;
+    pf.blueShift  = ffs(vis->blue_mask) - 1;
+    pf.redMax     = vis->red_mask   >> pf.redShift;
+    pf.greenMax   = vis->green_mask >> pf.greenShift;
+    pf.blueMax    = vis->blue_mask  >> pf.blueShift;
+
+    pb = new FullFramePixelBuffer(pf, dpyWidth, dpyHeight,
+                                  (rdr::U8*)image->xim->data, this);
+  }
+  virtual ~XDesktop() {
+    delete pb;
+  }
+
+  void setVNCServer(VNCServer* s) {
+    server = s;
+    server->setPixelBuffer(pb);
+  }
+
+  // -=- SDesktop interface
+
+  virtual void pointerEvent(const Point& pos, rdr::U8 buttonMask) {
+    if (!haveXtest) return;
+    XTestFakeMotionEvent(dpy, DefaultScreen(dpy), pos.x, pos.y, CurrentTime);
+    if (buttonMask != oldButtonMask) {
+      for (int i = 0; i < 5; i++) {
+	if ((buttonMask ^ oldButtonMask) & (1<<i)) {
+          if (buttonMask & (1<<i)) {
+            XTestFakeButtonEvent(dpy, i+1, True, CurrentTime);
+          } else {
+            XTestFakeButtonEvent(dpy, i+1, False, CurrentTime);
+          }
+        }
+      }
+    }
+    oldButtonMask = buttonMask;
+  }
+
+  virtual void keyEvent(rdr::U32 key, bool down) {
+    if (!haveXtest) return;
+    int keycode = XKeysymToKeycode(dpy, key);
+    if (keycode)
+      XTestFakeKeyEvent(dpy, keycode, down, CurrentTime);
+  }
+
+  virtual void clientCutText(const char* str, int len) {
+  }
+
+  virtual Point getFbSize() {
+    return Point(pb->width(), pb->height());
+  }
+
+  // rfb::ColourMap callbacks
+  virtual void lookup(int index, int* r, int* g, int* b) {
+    XColor xc;
+    xc.pixel = index;
+    if (index < DisplayCells(dpy,DefaultScreen(dpy))) {
+      XQueryColor(dpy, DefaultColormap(dpy,DefaultScreen(dpy)), &xc);
+    } else {
+      xc.red = xc.green = xc.blue = 0;
+    }
+    *r = xc.red;
+    *g = xc.green;
+    *b = xc.blue;
+  }
+
+  virtual void poll() {
+    if (server && server->clientsReadyForUpdate()) {
+      image->get(DefaultRootWindow(dpy));
+      server->add_changed(pb->getRect());
+      server->tryUpdate();
+    }
+  }
+
+protected:
+  Display* dpy;
+  PixelFormat pf;
+  PixelBuffer* pb;
+  VNCServer* server;
+  Image* image;
+  int oldButtonMask;
+  bool haveXtest;
+};
+
+char* programName;
+
+static void usage()
+{
+  fprintf(stderr, "\nusage: %s [<parameters>]\n", programName);
+  fprintf(stderr,"\n"
+          "Parameters can be turned on with -<param> or off with -<param>=0\n"
+          "Parameters which take a value can be specified as "
+          "-<param> <value>\n"
+          "Other valid forms are <param>=<value> -<param>=<value> "
+          "--<param>=<value>\n"
+          "Parameter names are case-insensitive.  The parameters are:\n\n");
+  Configuration::listParams(79, 14);
+  exit(1);
+}
+
+int main(int argc, char** argv)
+{
+  initStdIOLoggers();
+  LogWriter::setLogParams("*:stderr:30");
+
+  programName = argv[0];
+  Display* dpy;
+
+  for (int i = 1; i < argc; i++) {
+    if (Configuration::setParam(argv[i]))
+      continue;
+
+    if (argv[i][0] == '-') {
+      if (i+1 < argc) {
+        if (Configuration::setParam(&argv[i][1], argv[i+1])) {
+          i++;
+          continue;
+        }
+      }
+      usage();
+    }
+
+    usage();
+  }
+
+  CharArray dpyStr(displayname.getData());
+  if (!(dpy = XOpenDisplay(dpyStr.buf[0] ? dpyStr.buf : 0))) {
+    fprintf(stderr,"%s: unable to open display \"%s\"\r\n",
+            programName, XDisplayName(displayname.getData()));
+    exit(1);
+  }
+
+  signal(SIGHUP, CleanupSignalHandler);
+  signal(SIGINT, CleanupSignalHandler);
+  signal(SIGTERM, CleanupSignalHandler);
+
+  try {
+    XDesktop desktop(dpy);
+    VNCServerST server("x0vncserver", &desktop);
+    desktop.setVNCServer(&server);
+
+    TcpSocket::initTcpSockets();
+    TcpListener listener((int)rfbport);
+    vlog.info("Listening on port %d", (int)rfbport);
+
+    while (true) {
+      fd_set rfds;
+      struct timeval tv;
+
+      tv.tv_sec = 0;
+      tv.tv_usec = 50*1000;
+
+      FD_ZERO(&rfds);
+      FD_SET(listener.getFd(), &rfds);
+
+      std::list<Socket*> sockets;
+      server.getSockets(&sockets);
+      std::list<Socket*>::iterator i;
+      for (i = sockets.begin(); i != sockets.end(); i++) {
+        FD_SET((*i)->getFd(), &rfds);
+      }
+
+      int n = select(FD_SETSIZE, &rfds, 0, 0, &tv);
+      if (n < 0) throw rdr::SystemException("select",errno);
+
+      if (FD_ISSET(listener.getFd(), &rfds)) {
+        Socket* sock = listener.accept();
+        server.addClient(sock);
+      }
+
+      server.getSockets(&sockets);
+      for (i = sockets.begin(); i != sockets.end(); i++) {
+        if (FD_ISSET((*i)->getFd(), &rfds)) {
+          server.processSocketEvent(*i);
+        }
+      }
+
+      server.checkTimeouts();
+      desktop.poll();
+    }
+
+  } catch (rdr::Exception &e) {
+    vlog.error(e.str());
+  };
+
+  return 0;
+}