Imported nxagent-3.1.0-2.tar.gznxagent/3.1.0-2

Summary: Imported nxagent-3.1.0-2.tar.gz
Keywords:

Imported nxagent-3.1.0-2.tar.gz
into Git repository

1 files changed, 5815 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/hw/nxagent/CHANGELOG b/nx-X11/programs/Xserver/hw/nxagent/CHANGELOG
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@@ -0,0 +1,5815 @@
+ChangeLog:
+
+nxagent-3.1.0-2
+
+- Fixed TR11E01946. Forcing exposures on regions saved in the backing
+  store could bring to unexpected results.
+
+- Fixed TR11E01928. Animated cursors were not properly disconnected
+  and reconnected.
+
+nxagent-3.1.0-1
+
+- Opened the 3.1.0 branch based on nxagent-3.0.0-93.
+
+nxagent-3.0.0-93
+
+- Fixed TR10E01913. Now bell settings are restored after the agent
+  reconnects.
+
+nxagent-3.0.0-92
+
+- Fixed a compilation error on 64 bit platforms.
+
+nxagent-3.0.0-91
+
+- Checked the window synchronization status before subtracting an ex-
+  posed area from the corrupted region.
+
+nxagent-3.0.0-90
+
+- Fixed TR11E01932. In case of rootless session displayed by NXWin X
+  server, synthetic ConfigureNotify events are generated by the X11
+  agent. This helps to correct menu navigation in Java 1.6.0.
+
+- Fixed the handling of 'client' parameter.
+
+- Fixed bad refreshes in viewport navigation in the case of Windows
+  client.
+
+- Fixed TR11E01930. If the defer level is set by means of the command
+  line, the DeferLevel option is not reset while resuming the session.
+
+- Fixed string comparison in the font replacement routine.
+
+- Printed the new geometry in the session log when the agent screen is
+  resized.
+
+nxagent-3.0.0-89
+
+- Fixed TR10E01919. The agent could crash in the routine in charge of
+  find a replacement for a missing font.
+
+- Removed an unuseful log message.
+
+nxagent-3.0.0-88
+
+- Fixed TR10D01539. Some XKEYBOARD requests are disabled if the option
+  'keyboard' has value 'query'. This locks the initial keyboard map.
+  Enabling/disabling of XKEYBOARD requests is done at run time.
+
+- Added -noxkblock command line option enabling the XKEYBOARD requests
+  even if the option 'keyboard' value is 'query'.
+
+nxagent-3.0.0-87
+
+- Reworked the handling of CT_PIXMAP client clips. Clips are always
+  converted in regions for internal use, while bitmap are saved for
+  operations involving the remote X.
+
+nxagent-3.0.0-86
+
+- Fixed TR07E01749. Now using different resolution between shadow
+  and master session with shadow display option 'As on the server'
+  doesn't display black borders.
+
+- Fixed TR09E01852. The GC clips of type CT_PIXMAP are not converted
+  in regions. This avoids generating regions made up by thousands of
+  rectangles. Backing store function SetClipmaskRgn is implemented by
+  a stub doing nothing.
+
+nxagent-3.0.0-85
+
+- Fixed TR08E01841. Exposed are forced to new areas exposed by the
+  viewport.
+
+- Fixed TR02E01645. Remote exposures was blocked if the NX client was
+  running on Linux without window manager.
+
+- Even if the agent window is fully obscured, synchronization is not
+  skipped if the Composite extension of the remote display is in use.
+
+- Fixed TR08E01851. Exposures events have to be internally generated
+  for regions that can't be restored because the backing pixmap is
+  corrupted.
+
+- Fixed TR08E01847. The initial values of store used to save XChangeGC
+  calls are set to the default GC values.
+
+- When a drawable becomes synchronized, its outdated bitmap is destro-
+  yed.
+
+- If a pixmap is not fully synchronized after a synchronization loop
+  it is cleared, just like windows.
+
+- Solved a problem causing some pixmaps to remain among the corrup-
+  ted resources even if they were synchronized.
+
+nxagent-3.0.0-84
+
+- Renamed Misc.h as Utils.h to solve name clashes on Windows platform.
+
+nxagent-3.0.0-83
+
+- Changes to include correctly declaration of _XDisplay structure on
+  64 bit platforms. Further tests are needed to confirm that it fixes
+  TR08E01824.
+
+nxagent-3.0.0-82
+
+- Fixed TR08E01821. Changed nxagentAddItemBSPixmapList() to check if
+  the pixmap item has already an entry in the list before adding it.
+
+- Fixed TR07E01795. Sun Studio main window showed only its grey back-
+  ground. Changed clipboard events handling to let the agent notify
+  a failure in converting selection.
+
+nxagent-3.0.0-81
+
+- Based on nxagent-3.0.0-78.
+
+- The agent options are saved before reopening the display in the
+  reconnection procedure. If the new initialization fails the backup
+  values of options are restored.
+
+- Keyboard device info are saved before the keyboard reset occuring
+  in the reconnection procedure. If the new initialization of the
+  keyboard fails, the old values are restored.
+
+- The initialization procedure of keyboard device returns with error
+  if it fails to retrieve the keyboard mapping information from the
+  remote display.
+
+- The reconnection fails if the default depth of the new display is
+  different from the previous one.
+
+- The session can be migrated if the visuals don't match for color
+  masks swapping. At the moment there are no conversions to line up
+  the RGB masks, so even if the session can be migrated, incorrect
+  colors may be shown.
+
+nxagent-3.0.0-80
+
+- The agent options are saved before reopening the display in the
+  reconnection procedure. If the new initialization fails the backup
+  values of options are restored.
+
+- The flag storing that a SIGHUP has been received is reset if the
+  function reconnecting the session fails.
+
+nxagent-3.0.0-79
+
+- Changed the SIGHUP handler not to ignore the signal if the state
+  is SESSION_GOING_UP or SESSION_GOING_DOWN.
+
+- Keyboard device info are saved before the keybord reset occuring
+  in the reconnection procedure. If the new initialization of the
+  keyboard fails, the old values are restored.
+
+- The initialization procedure of keyboard device returns with error
+  if it fails to retrieve the keyboard mapping information from the
+  remote display.
+
+- The reconnection fails if the default depth of the new display is
+  different from the previous one.
+
+- The session can be migrated if the visuals don't match for color
+  masks swapping. At the moment there are no conversions to line up
+  the RGB masks, so even if the session can be migrated, incorrect
+  colors may be shown.
+
+nxagent-3.0.0-78
+
+- Fixed TR07E01747. Fixed warnings occuring when compiling for AMD64.
+
+- Fixed TR07E01753. NoMachine WM icon in the title bar is displayed
+  correctly.
+
+- Fixed TR03E01656. If client and server endianess didn't match, glyph
+  images bits have to be only temporarily swapped.
+
+- Fixed TR07E01746. Terminate the shadow agent if the option 'shadow'
+  is empty.
+
+- Added option '-verbose'. It enables the printing of errors received
+  by the agent from the remote X server.
+
+- Warnings related to missing fonts are printed only if verbose mode
+  is enabled.
+
+- Disabled a log message related to the use of Composite extension.
+
+nxagent-3.0.0-77
+
+- The pixmap formats are initialized without taking care of which are
+  supported on the remote display.
+
+- Removed the check for pixmap format compatibility when migrating the
+  session to a new display.
+
+- Fixed TR06E01725. A minimum set of available picture formats is
+  used to ensure a wide migration from/to different displays.
+
+- The PictFormat structures used by nxagent are no longer filtered
+  with the ones available on the real display.
+
+- The background pixmaps are cleared while reconnecting in order to
+  make them usable.
+
+- Fixed TR01E01619. Changed the RandR implementation to return a re-
+  fresh rate other than zero.
+
+nxagent-3.0.0-76
+
+- Changed the keystroke to force the drawable's synchronization to
+  CTRL-ALT-J.
+
+nxagent-3.0.0-75
+
+- If the backing store tries to restore areas from a corrupted pixmap,
+  such areas are subtracted from the saved region, so that exposures
+  will be sent for them.
+
+nxagent-3.0.0-74
+
+- Don't skip the synchronization when there are more clients ready.
+  This temporarily solves the synchronization problems observed in
+  the previous versions if one or more clients kept the agent busy.
+
+nxagent-3.0.0-73
+
+- If the PolyFillRect() uses a FillStippled or a FillOpaqueStippled
+  fill style and the destination is corrupted, the area affected by
+  the operation is first synchronized.
+
+nxagent-3.0.0-72
+
+- Fixed the bug affecting the position of the input window when a
+  session was migrated to a linux X server with no window manager
+  running.
+
+- The color used to fill the corrupted backgrounds is converted de-
+  pending on the depth of remote X server.
+
+- The PolyFillRect() does not clean the corrupted destination region
+  if a stipple pixmap is used as mask. This solution is adopted to
+  reduce the region fragmentation and to solve the text drawing pro-
+  blems affecting rdesktop.
+
+nxagent-3.0.0-71
+
+- Force a flush of the display buffer if the coalescence timeout is
+  expired. Set the timeout according to the link type, from 0 to 50
+  ms for link MODEM.
+
+- In nxagentRealizeImage() the width in byte is computed newly if
+  the image has been scaled.
+
+- The shadow agent clips the screen updates in tile only if the link
+  type is MODEM or ISDN.
+
+- Split the abort conditions in the synchronization loop to check
+  separately the congestion and the blocking status.
+
+- Implemented a workaround in order to avoid graphical problems with
+  render composite operations on Xfree86 remote server.
+
+nxagent-3.0.0-70
+
+- Various adjustments aimed at using the best defer rules depending
+  on the congestion state.
+
+- Fixed a problem with icons of message boxes in shadow sessions.
+
+- Changed the log message printed when the shadow agent can't connect
+  to the master session.
+
+- If Composite is in use, don't skip the PutImage and CopyArea opera-
+  tions even if the agent window is fully obscured.
+
+nxagent-3.0.0-69
+
+- The option -nodamage prevents the shadow agent from using the damage
+  extension.
+
+- Changed the scaling feature to set the byte order of the source
+  image according to the local endianess.
+
+- Changed the scaling feature in order to handle different ratios for
+  horizontal and vertical sizes.
+
+- Force the shadow sessions to be non-persistent.
+
+- When a pixmap background is synchronized, an expose is sent to its
+  owners.
+
+nxagent-3.0.0-68
+
+- Changed the type of parameters passed to nxagentRootlessRestack in
+  order to be compliant with Xlib types on 64 bit platfors.
+
+- The nxagentCompositeRects() checks for the render operation type to
+  determine if the corrupted destination region must be cleared.
+
+nxagent-3.0.0-67
+
+- Fixed a condition discarding the expose events received from the X
+  server.
+
+nxagent-3.0.0-66
+
+- The corrupted resources are removed when a session suspends, and are
+  reallocated only at reconnection. This is aimed at avoiding synchro-
+  nization loops when the link is down.
+
+nxagent-3.0.0-65
+
+- Initialize for now the tile size at 64x64 in shadow mode.
+
+- The height and width of the tiles used for synchronizing drawables
+  are set without overriding command line option 'tile'.
+
+- Avoid calling miWindowExposures() for empty regions.
+
+- Fixed a bug while clearing corrupted regions with window exposures.
+
+- The corrupted drawable counters are not reset if there are bitmaps
+  to synchronize.
+
+nxagent-3.0.0-64
+
+- The synchronization bitmap is used only when requesting a full
+  drawable synchronization, otherwise the frame-buffer is used as
+  source.
+
+- Fixed some bugs in the synchronization loop.
+
+- Removed the remaining debug output.
+
+nxagent-3.0.0-63
+
+- Don't start the synchronization loop if the wakeup handler found
+  some clients ready.
+
+- Don't flush the display buffers if the synchronization was inter-
+  rupted and there are more drawables to synchronize.
+
+- Changed the backing store functions to not save the obscured areas
+  which are inside the corrupted region of a window.
+
+- Added the code to send the XClearArea() commands in shadow mode at
+  the end of the synchronization loop. In this way large images are
+  still split in tiles but, on fast links, the final result can made
+  visible all at once.
+
+- Modified the corrupted drawable counters to only report the number
+  of resources needing synchronization. This allows the block hand-
+  ler to avoid spinning through the synchronization loop if there is
+  nothing to do.
+
+- On a window exposure remove the corrupted region of the destinat-
+  ion window.
+
+- For testing purposes, the pixmap synchronization loop starts only
+  if there are corrupted backgrounds.
+
+nxagent-3.0.0-62
+
+- The image scaling is applied only if the destination drawable is the
+  pixmap shadowing the frame buffer of the master session.
+
+- The shadow agent exits with a fatal error if it can't connect to the
+  master session.
+
+nxagent-3.0.0-61
+
+- Forward the SIGCHLD to the NX transport instead of letting the NX
+  transport forward the signal to us. This allows the agent to set
+  and replace the signal handler at any time, without having to ta-
+  ke care of the state of the NX transport.
+
+- Improved the synchronization loop by implementing a simple round-
+  robin mechanism between the resources needing synchronization.
+
+nxagent-3.0.0-60
+
+- Use a new set of functions to install, post-install and reset the
+  signal handlers.
+
+- Reset the signal handlers to their initial state after a display
+  failure, as part of the disconnection procedure.
+
+- Don't set SA_RESTART in the sigaction flags. Make the signal int-
+  errupt the system call.
+
+- Terminate all the running dialogs before exiting.
+
+nxagent-3.0.0-59
+
+- Use the value of nxagentCongestion in nxagentUserInput() instead
+  of calling NXDisplayCongestion().
+
+nxagent-3.0.0-58
+
+- The clip mask of the scratch GC used by nxagentDeferCopyArea() is
+  reset before releasing the GC.
+
+- The MotionNotify event can now break the synchronization loop.
+
+- In the case of shadow sessions, if synchronization aborts then the
+  remaining data to synchronize are not stored in a bitmap.
+
+- If a table rebuild occurs in a loop searching for resources, the
+  loop restarts from beginning not to use the out of date table.
+
+nxagent-3.0.0-57
+
+- The synchronization bitmap is created only if the corrupted area
+  of the source drawable is visible.
+
+- The synchronization loop skips the last synchronizing drawable to
+  give a chance to the next resources to be synchronized.
+
+- Removed the session starting infos concerning the mismatching ver-
+  sions of render and the window manager detection.
+
+- Split the gliph lists in Render.c only if the symbol SPLIT_GLYPH_-
+  LISTS is defined.
+
+- Read again the events in the block handler after the flush.
+
+- The nxagentCongestion variable is now a value ranging from 0 to 9,
+  not a boolean flag.
+
+- Added some experimental code dynamically reducing the size of the
+  display output buffer when the agent is blocking for write.
+
+nxagent-3.0.0-56
+
+- The synchronization loop is now aborted when a short timeout exp-
+  ires. If the drawable synchronization cannot be completed, the
+  remaining data is stored in a bitmap. The synchronization loop is
+  then restarted using the data from the bitmap, instead of pulling
+  the latest image from the framebuffer. This allows the agent to
+  show a complete frame when displaying videos and animations, while
+  at the same time giving a chance to the clients to update the
+  screen in background. When an image from the saved bitmap is put
+  on the remote display, the image is compared with the actual data
+  in the framebuffer. If the two bitmaps match, the corresponding
+  region of the drawable is marked as synchronized, otherwise the
+  drawable remains dirty and will be synchronized at the next loop
+  using the new data taken from the framebuffer.
+
+- If the smart schedules is enabled, let the dispatcher decide when
+  it is time to yield and process the next client.
+
+nxagent-3.0.0-55
+
+- Disable the smart scheduler in the case of shadow sessions.
+
+- If the smart scheduler is enabled, stop the timer before returning
+  from the block handler. WaitForSomething() sets a zero timeout if
+  there are clients with input but doesn't stop the timer. The select
+  is then interrupted to update the schedule time even if, what the
+  dispatcher cares, is only the ticks count at the time the client
+  is scheduled in.
+
+- Fixed a compilation warning in NXresource.c.
+
+- The main window of the shadow agent is mapped in nxagentMapDefault-
+  Windows, like for non shadow agents, if the remote display has no
+  window manager running. This avoids a flickering effect on the !M
+  logo having place if the shadow session was displayed from a Wind-
+  ows client.
+
+- Some code related to the use of the Composite extension is not built
+  in the agent being not necessary anymore.
+
+nxagent-3.0.0-54
+
+- Get SmartScheduleStopTimer() from dixstruct.h.
+
+- Updated the NoMachine icon file.
+
+nxagent-3.0.0-53
+
+- Changed the message 'NXAGENT: Fatal IO error on display' into 'Info:
+  Disconnected from display'.
+
+- Fix a problem occurring when the FindClientResourcesByType() needs
+  to reallocate the resource table.
+
+- The popup window synchronization breaks if an user input is caught.
+
+- Implemented FR05E01712. The stderr and stdin are redirected to the
+  'clients' file in the session directory.
+
+- The nxagentRealizeImage function does nothing if the agent is not
+  connected to the display.
+
+- Removed the code implementing the redraws of the viewport frame.
+  Such code is not needed because is't enough for the agent to handle
+  the expose event received from the X server.
+
+nxagent-3.0.0-52
+
+- Where it is necessary to wrap the function PaintWindowBackground,
+  the original function pointer is saved and restored afterwards. This
+  let other code wrapping that function (e.g. the damage extension) to
+  work correctly.
+
+- If the agent works in shadow mode, the defer parameters are ignored.
+
+nxagent-3.0.0-51
+
+- Use the smart scheduler on platforms where it is enabled.
+
+- Check ClientsWithInput in the wakeup handler and update the number
+  of clients ready if any descriptor is set.
+
+nxagent-3.0.0-50
+
+- Fixed TR05E01714. Changed VisibilityNotify event so that it forces
+  a refresh on the root window, but only if on the agent Composite is
+  enabled and its window moves from a VisibilityFullyObscured to ano-
+  ther state.
+
+- Grant the availability of core fonts in master sessions also after
+  the disconnection. This makes possible to start new clients inside
+  a shadow sessions while the master is down.
+
+- Changed nxagentGlyphs() to send a single glyph list per request.
+
+- Major rewrite of the agent dispatch handler.
+
+- Some name changes to the functions handling the session states.
+
+nxagent-3.0.0-49
+
+- Made the dispatch loop yield control to a different client after a
+  fair amount of time even if the current client doesn't produce any
+  output.
+
+nxagent-3.0.0-48
+
+- Modified the message in the suspend dialog to say 'Disconnect' in
+  place of 'Suspend'.
+
+- Added macros in Pixels.h to determine the behavior of the lazy en-
+  coding.
+
+- Changed the copyright attribution from Medialogic to NoMachine.
+
+- Reset all options to their defaults before processing the session
+  arguments. This fixes the problem with the DeferLevel option not
+  being set at reconnection.
+
+nxagent-3.0.0-47
+
+- Initialized the arguments of NXGetControlParameters(), NXGetShmem-
+  Parameters() and NXGetUnpackParameters() to end up with valid data
+  also in the case of a display failure.
+
+- Converted the coordinates in the X_PolyFill requests to relative
+  mode. This makes all the requests independent from the origin and
+  helps the caching by the proxy.
+
+nxagent-3.0.0-46
+
+- Don't print the 'Display failure' message on a SIGTERM.
+
+- Ensure that the NX transport is shut down after the 'Terminating
+  session at...' message if the session is killed by the user.
+
+- Let the agent filter the error output by setting the OsVendorVEr-
+  rorFProc function pointer.
+
+- Give the possibility to the agent to redirect the standard error
+  during a Popen() or a System() by setting the OsVendorStartRedir-
+  ectErrorFProc and OsVendorEndRedirectErrorFProc function pointers.
+
+- Fixed a problem in nxagentPolyFillRect() not properly propagating
+  to the destination.
+
+- Added nxagentPolyFillRect() and nxagentGlyphs() among the funct-
+  ions increasing the pixmaps usage counter.
+
+- Cleaned up some of the FIXME related to the lazy encoding.
+
+nxagent-3.0.0-45
+
+- Use the three distinct functions in nxcompext to query the state
+  of the display connection.
+
+- Terminate gracefully on a fatal server error by printing the fol-
+  lowing in the session log:
+
+  Error: Aborting session with 'Error text...'.
+  Session: Aborting session at '...'.
+  Session: Session aborted at '...'.
+
+- Removed more debug messages from the session log.
+
+nxagent-3.0.0-44
+
+- Guess whether to compress an image with a lossless encoder based
+  also on the width and height, not only on size.
+
+- Corrupted pixmaps used as tiles propagate the dirty area when they
+  are involved in a PolyFillRect() operation.
+
+- On link settings ADSL to LAN, images are not split in tiles to bet-
+  ter fill all the available bandwidth.
+
+- Pixmaps referenced often as source in deferred operations or used
+  as backgrounds, are now synchronized as long as when the network
+  congestion level remains 0.
+
+- Use nxagentPaintWindowBorder() to update the window's border in
+  the framebuffer.
+
+- Fixed a problem with the new handling of the X_RenderChangePicture
+  requests that caused the text to be erroneously clipped.
+
+nxagent-3.0.0-43
+
+- Don't pass the uid of the shared memory segment to the nxcompshad
+  library if it can't be retrieved from the options.
+
+- Fixed the new handling of the RenderChangePicture requests to work
+  on 64 bit platforms.
+
+nxagent-3.0.0-42
+
+- Added support for the 'lossy', 'lossless' and 'adaptive' pack me-
+  thod literals. These values activate the dynamic selection of the
+  pack method by the agent.
+
+- Use the newer constant PACK_NONE instead of NO_PACK.
+
+nxagent-3.0.0-41
+
+- Fixed a bug in the disconnection procedure introduced with the new
+  handling of the display events.
+
+- Realize the XRenderChangePicture() request only if a change of the
+  remote picture's attributes is detected.
+
+nxagent-3.0.0-40
+
+- Dynamically select a lossy or a lossless encoder based on the num-
+  ber of pixels that appear to be different in the image.
+
+- Use the new PACK_BITMAP_16M_COLORS image encoding. Handle the case
+  when the packed image data points at the same data as the original
+  image. This is useful to save a copy.
+
+- The PACK_BITMAP_16M_COLORS method is now the default for lossless
+  encoding.
+
+- Don't use compression for the alpha channel. This is also intended
+  to better leverage the stream compression.
+
+nxagent-3.0.0-39
+
+- The nxagentComposite() function doesn't check the source and mask
+  synchronization status, but defers the XRenderComposite() operation
+  by checking the defer level only.
+
+- If the target of an XCompositeText() function is an hidden window,
+  the operation is prevented.
+
+- Passing the uid of master X server process to nxcompshad library.
+
+- Before the call of XRenderAddGlyphs(), call the new library function
+  XRenderCleanGlyphs() cleaning the padding bytes of data section of
+  request.
+
+nxagent-3.0.0-38
+
+- Don't warp the cursor if the requesting client is a shadow agent.
+
+- Changed a call to NXFlushDisplay in order to align to nxcomp version
+  3.0.0-15.
+
+- Updated the NoMachine icon file.
+
+- Changed Agent.h in order to include NX version of Xlib.h avoiding
+  missing declarations.
+
+- If the NXDisplayCongestion notifies an optimum congestion state,
+  the continuous user input, due to unreleased buttons/keys, doesn't
+  break the drawable's synchronization.
+
+- Renamed the option 'block' as 'tile'.
+
+- Implemented a way to guess if the destination drawable of a copy
+  area is a popup window. In such a case, the source is synchronized
+  before doing the copy to avoid ugly effects like text items floating
+  on an invisible background.
+
+- In order to reduce the number of clip mask changings, if the clean
+  region of a corrupted source drawable is formed by a single rectan-
+  gle, its coordinates are used to change extents and position of the
+  area involved in the copy area operation.
+
+- Fixed a crash caused by a reference to a resource table freed by a
+  table rebuilding. This was happening because during the pixmap re-
+  connection some new GC resources went beyond the resource table li-
+  mit, causing a table relocation. As a general rule, a function loop-
+  ing across a resource table should not add or remove resources.
+
+nxagent-3.0.0-37
+
+- To improve the efficiency of the algorithm deferring the trapezoid
+  operations, the composite does not propagate the glyphs flag to
+  the destination.
+
+- Moved the replacement of XCheckIfEvent() to nx-X11 with the name
+  XCheckIfEventNoFlush().
+
+nxagent-3.0.0-36
+
+- Changed nxagentDisplayFlushHandler() according to the new semantic
+  of the handler. The function is called by nxcomp when new data is
+  sent to the remote proxy.
+
+- After the flush handler is called, use NXQueryDisplay() with query
+  type NXDisplayCongestion to update the congestion flag.
+
+- Modified the boxes list defragmentation to merge only those rectan-
+  gles which fully overlap.
+
+- During the synchronization loop the nxagentDispatchHandler() takes
+  care of reading the enqueued events, while the nxagentUserInput()
+  checks only for state changes due to a processed key/button event.
+
+- Set the display output buffer size according to the link type.
+
+- Removed the congestion and synchronization callbacks.
+
+nxagent-3.0.0-35
+
+- In order to avoid the lossy encoding of text regions, the nxagent-
+  GlyphsExtents is computed even if the mask format is not specified.
+  In this case, the render implementation was not calculating the ex-
+  tents of composite text operation, whose coordinates are useful only
+  to build a mask pixmap.
+
+nxagent-3.0.0-34
+
+- Removed message 'Could not init font path element' from the output.
+
+- Moved initialization of picture support before the call to miDCInit-
+  ialize in the screen opening procedure. This is because miDCInitial-
+  ize calls DamageSetup that wraps the picture screen functions.
+
+- Implemented FR05E01686. Added option 'menu' enabling/disabling the
+  pulldown menu in the rootless agent.
+
+- Added a flag to each drawable to record if they have been the dest-
+  ination of a glyph operation. This is used to skip the deferral of
+  some operations (e.g. render trapezoids) if they can cause the
+  drawable to be synchronized using a lossy encoding.
+
+- The render trapezoids are deferred if the operation falls inside
+  a dirty region or if the destination drawable does not contain
+  glyphs.
+
+- Imported the NXmitrap.c file from render directory.
+
+- Improved the algorithm queuing multiple writes across a proxy
+  flush.
+
+nxagent-3.0.0-33
+
+- Read the event queue after each request processed. Doing this
+  is expensive but it seems to work best.
+
+- Don't split the big trapezoid requests. Splitting the requests
+  doesn't seem to provide any benefit with the clients tested.
+
+- By defining BLOCKS in Handlers.c, Events.c and NXdispatch.c, log
+  the begin and end of the most sensitive routines.
+
+nxagent-3.0.0-32
+
+- Use NXSetDisplayWriteHandler() to register a callback invoked
+  by Xlib after some data is written to the display socket. This
+  callback allows the agent to better determine when it is time
+  to send the sync requests.
+
+nxagent-3.0.0-31
+
+- The operation of adding glyphs to remote glyphset has been defer-
+  red, in order to avoid to add unused glyphs. When a composite text
+  operation looks for a certain glyph, if it has not been added to
+  the selected glyphset, an XRenderAddglyphs is requested.
+
+- The forced synchronization timeout is now dependant on link type.
+
+- Force the mi to process the events just after having processed
+  any input.
+
+- Added an experimental 'hard' sync request intended to wait for
+  the X server to complete an image operation. This also affects
+  the agent only when the NX transport is not running.
+
+- Added a synchronization mechanism intended to let the agent de-
+  tect if the X server is not able to process its input when the
+  NX transport is not activated. The algorithm uses asynchronous
+  X_GetInputFocus replies to minimize the impact of latency on
+  slow connections. A new request is sent at any given amount of
+  bytes read from our clients. When the number of pending replies
+  is exceeded, the agent stops accepting additional requests and
+  waits for the remote until the number of pending replies returns
+  below the limit. Note that when the NX transport is running, the
+  algorithm is disabled to not interfere with the proxy's own
+  token-based flow control.
+
+- Added the nxagentDispatchHandler() function. It is called by the
+  dispatcher after a client's request has been processed.
+
+- Added the nxagentWaitEvents() function. It blocks waiting for
+  more input with an optional timeout. It handles the case when
+  the NX transport is not running and is able to recover gracely
+  from a display failure by returning the error.
+
+- Replaced most of the code that was relying on NXTransContinue()
+  to use the new function.
+
+- Moved the new event-related functions to Events.h and Events.c.
+
+- Disabled the code raising the splash screen at reconnection.
+
+- Reverted change done in 3.0.0-8 version, dealing with expose events
+  not having entries in the queue. They are not collected in a global
+  region but sent immediately.
+
+nxagent-3.0.0-30
+
+- Let the block handler check if there are events queued after the
+  flush before entering the select.
+
+- Changed the dispatch loop to read the incoming events more often.
+
+- Added the nxagentReadEvents() and nxagentCheckEvents() functions.
+  Differently from XCheckIfEvent(), nxagentCheckEvents() doesn't
+  flush the output buffer if no event is available. nxagentReadEv-
+  ents(), instead, it's like XEventsQueued() but forces the use of
+  the QueuedAfterReading mode. These functions should be used when-
+  ever XEventsQueued() and XCheckIfEvent() would be required.
+
+- The nxagentQueuedEvents() macro uses XQLength() to return the
+  number of events that have been read and need to be dispatched.
+
+- The nxagentPendingEvents() function returns true if there is any
+  event queued. If not, it queries the transport to find if more
+  events can be read.
+
+- Ripristinated the code preventing the agent to connect to its own
+  display. The code was disabled while migrating to the new tree.
+
+- Removed the dependencies from the NXAGENT_QUERYBSIZE, NXAGENT_NO-
+  EXPOSEOPTIMIZE and NXAGENT_ONEXIT. Removed the unused code.
+
+- Removed more unused code in Clipboard.c.
+
+- The shadow agent calls NXShadowDestroy before exiting.
+
+- Reverted a change done in 3.0.0-8 dealing with expose events. If the
+  result of the subtraction is not sent immediately, some duplicated
+  refresh is shown.
+
+nxagent-3.0.0-29
+
+- The splash screen is removed as soon as the session is started in
+  the case of shadow session.
+
+- The rules to verify when the synchronization loop can be stopped
+  are specified by means of a bitmask passed as parameter to synch-
+  ronization functions.
+
+- The glyphsets are no longer reconnected during a session resuming,
+  but only when they are used.
+
+- Initialized the timeout parameter in block handlers in case of NULL
+  value.
+
+- Added option 'block' to specify the size of image slices sent during
+  the synchronization.
+
+- Fixed a memory leak in nxagentParseOptions().
+
+nxagent-3.0.0-28
+
+- Improved the nxagentGetOptimizedRegionBoxes() function to optimize
+  the high fragmented rectangle lists.
+
+- When resizing nxagent window the fictitious resize for all top level
+  windows, triggering the window tree validation, is not executed if
+  rootless mode is off.
+
+- The nxagentInputWindows cannot be resized in rootless mode because
+  they are not created.
+
+- Added NXdamage.c to the source files.
+
+- Changed damage's GCOps functions drawing text. This was needed be-
+  cause the original functions didn't call agent GCOps if the drawable
+  was registered for damage events.
+
+nxagent-3.0.0-27
+
+- Fixed TR04E01677. Changed the reconnection procedure to call the
+  function destroying the NoMachine splash window. It rarely happened
+  that the splash window was not removed after resuming a session.
+
+- Ignored the ForceScreenSaver requested by X clients to avoid clashes
+  with our screen saver handling.
+
+- Cleanup of code handling the screen saver timeout to remove referen-
+  ces to the old drawable's synchronization method.
+
+- Fixed TR04E01664. The session is terminated instead of suspended if
+  the auto-disconnect timeout expires and the persistence is not allo-
+  wed.
+
+- Reverted an optimization in nxagentCheckWindowConfiguration() in
+  order to avoid inconsistencies in the stacking order.
+
+- Fixed a segmentation fault in rootless mode.
+
+nxagent-3.0.0-26
+
+- Some fixes to build in the Cygwin environment.
+
+nxagent-3.0.0-25
+
+- Renamed the option 'lazylevel' to 'defer'.
+
+- Added a flag to windows to know if they have transparent children,
+  in order to reduce to minimum the put images on windows covered by
+  their children.
+
+- Created a generic list of graphic contexts, used when synchronizing
+  drawables between the nxagent and the remote X server. All the GCs
+  are created with IncludeInferiors property. This solves problem when
+  trying to synchronize windows covered by children with transparent
+  backgrounds.
+
+- The nxagentUserInput checks if keys are pressed.
+
+- Fixed some memory leaks.
+
+- In shadow mode, removed the handling of events of the source display
+  from the code. They can be handled in the nxcompshad library.
+
+- In shadow mode, allow the synchronization loop to break in case of
+  input event.
+
+- Moved the call to miDCInitialize after the initialization of poin-
+  ters to screen functions. This was needed to make DAMAGE work pro-
+  perly.
+
+- In shadow mode, not breaking the polling if a mouse button is down.
+
+- In shadow mode, allow events to break the loop sending updates.
+
+- At reconnection the input window is raised after the root window is
+  mapped.
+
+- Fixed an invalid read. The call to the function nxagentSetInstalled-
+  ColormapWindows() has been moved from nxagentDestroyWindow to Dele-
+  teWindow.
+
+nxagent-3.0.0-24
+
+- The corrupted drawables are added to dedicated lists of resources
+  to speed up the synchronization process.
+
+- The nxagentUserInput checks if a mouse button is pressed.
+
+- Created the nxagentGetScratchGC which resets the scratch GCs to de-
+  faults values also on the remote X server.
+
+- The synchronization cycle is forced when a timeout expires, albeit
+  the remote display is blocked.
+
+- Added a parameter to synchronization functions to specify if loops
+  can break. It's useful to force the synchronization in some circum-
+  stances.
+
+- Keystroke CTRL-ALT-R is enabled in shadow mode too. It is used to
+  switch scaled and non-scaled modes.
+
+- Some changes to adjust the window position.
+
+- Moved some macros to Misc.h.
+
+- Some changes to adjust the behaviour of scaling feature in case of
+  resize and switch to full screen.
+
+- Freeing the buffer used for scaling if no needed anymore.
+
+nxagent-3.0.0-23
+
+- Fixed TR02E01648 and TR10D01534. Changed pointer motion events han-
+  dling. In desktop mode the nxagent creates a InputOnly window that
+  collects the MotionNotify events. This window is mapped over the
+  root window. In rootless mode the nxagent creates all windows on
+  real X server with PointerMotionMask.
+
+- Not exiting from the block handler with zero timeout if drawables to
+  be synchronized are pixmaps only.
+
+- Reduced the margin around the glyph extent from 5 to 3 pixels.
+
+nxagent-3.0.0-22
+
+- Fixed initialization of XImage used for scaling.
+
+- Changes to fix the position of the shadow main window.
+
+nxagent-3.0.0-21
+
+- Moved the implementation of scaling feature in nxagentRealizeImage.
+
+- Disabled log message 'Font not found' in Font.c.
+
+- The synchronization loop is called inside the BlockHandler. Synch-
+  ronization goes on until the display is not blocked.
+
+- Exiting the BlockHandler with timeout zero if corrupted drawables
+  have not been synchronized because of blocked display connection.
+
+- Changed the synchronization loop to slice the dirty regions.
+
+- The updates by shadowing nxagents are now sent using the lazy me-
+  chanics: the remote buffer pixmap is marked as dirty, then synch-
+  ronized.
+
+- Traversing the tree to synchonize windows.
+
+nxagent-3.0.0-20
+
+- Fixed a bug in the nxagentGetOptimizedRegionBoxes() function which
+  was causing a bad merging of boxes.
+
+- Added a margin of 5 pixels around the glyphs extents before synch-
+  ronizing them.
+
+- The synchronization cycle has been reactivated for the first lazy
+  level, in order to synchronize the window's background.
+
+- The CopyArea between pixmaps doesn't mark the full destination as
+  corrupted, but clips the operation with the synchronized area of the
+  source as happens for the windows.
+
+- Implemented scaling feature for the shadow agent. To do: run-time
+  control of this feature by keystrokes and window resize; adapting
+  the window size to the scaled dimensions.
+
+- Setting the shadow session scaling ratio equal to the size chosen
+  from the user divided by the size of the main session.
+
+- Scaled mouse motion events according with the ratio.
+
+- Implemented the nxagentScaleImage() function.
+
+- Updated version number and copyright in the output log.
+
+- Fixed TR06D01390. When resizing nxagent window, we make a fictitious
+  resize for all top level windows, in order to trigger the window
+  tree validation.
+
+nxagent-3.0.0-19
+
+- Force LazyLevel to 0 in case of shadowing session.
+
+- If shadowing poller returns that nothing is changed and no updates
+  have to be sent, call WaitForSomething select with 50 ms timeout.
+
+- The shadow agent doesn't break the sending of updates in case of
+  mouse motion events.
+
+- The scratch GC's clip mask was not cleared during a drawable synch-
+  ronization. Now the GetScratchGC() function is called after changing
+  the nxagentGCTrap flag.
+
+- Implemented the function nxagentGetOptimizedRegionBoxes(). It gets
+  the list of boxes forming a region and operates on it to merge as
+  much boxes as possible, checking their width and position.
+
+- Implemented the function nxagentClearRegion(). It does an XClearA-
+  rea() for each box belonging to a region, using the color returned
+  by nxagentGetCorruptedRegionColor() as background of target window.
+
+- Implemented the function nxagentGetCorruptedRegionColor(). It gets
+  the color of first outer pixel in the bottom right corner of re-
+  gion.
+
+- Fixed some memory leaks.
+
+- Checked and removed some FIXME concerning the lazy encoding.
+
+- Fixed and added some debug messages in Render.c, GC.c and GCOps.c.
+
+- Added to the Literals.h file the Render and Shared memory requests.
+
+nxagent-3.0.0-18
+
+- Changes to comply with nxcompshad library.
+
+nxagent-3.0.0-17
+
+- The master agent holds the number of shadow nxagents connected to
+  itself. The shadow nxagent notify its presence to master nxagent
+  by setting the _NX_SHADOW property.
+
+nxagent-3.0.0-16
+
+- Rearranged the lazy level rules. All the link types now use the lazy
+  level 1: the pixmaps are always corrupted, and they becomes synchro-
+  nized only when they're sources of an operation (i.e. CopyArea, ren-
+  der).
+
+- The lazy levels greater than 1 don't synchronize automatically. It's
+  possible to synchronize with two keystrokes: CTRL+ALT+Z forces the
+  windows synchronization without take care of the congestion; CTRL+
+  ALT+X synchronizes the windows and the background until there is
+  enough bandwidth.
+
+- Only the tile, stipples and glyphs are always synchronized.
+
+- The height of glyphs region has been doubled to obtain a better vi-
+  sual effect after the synchronization.
+
+- Fixed a problem causing the background pixmaps to be used also if
+  they were not fully synchronized.
+
+- Added a function to convert a PolyPoint in a dirty region. The fun-
+  ction is now disabled because it is not advisable to use the exten-
+  ts.
+
+- The XCopyArea is not requested if the clip region is NIL.
+
+- The nxagentPutImage does not update the framebuffer when it is
+  doing a synchronization.
+
+- Moved all the code handling the drawables synchronization in the
+  Drawable.c file.
+
+- As the shared memory pixmaps are never synchronized with the re-
+  mote X server, now they're marked as dirty when they're created.
+
+- An XFillRectangles request now marks the rectangles of the desti-
+  nation drawable as synchronized.
+
+- Fixed a bug that was causing the CopyArea to propagate wrongly the
+  corrupted region on the destination drawable when the GC uses a
+  clip mask.
+
+- Implemented a test function useful to show on the windows all the
+  dirty regions as colored rectangles. It is used with the CTRL+ALT+A
+  keystroke.
+
+- Before sending the XRenderComposite operations (trapezoids, trian-
+  gles, TriStrip, TriFan), the drawables involved are synchronized if
+  they are dirties.
+
+- Changes to shadow mode.
+
+- Moved the code splitting the screen shadowing updates to a separate
+  function.
+
+- Suspend the sending of updates if input is received from the user.
+
+- Make use of callback mechanism implemented in the nxshadow library
+  to suspend screen polling when input is received from the user.
+
+- Flush the display link when requested by the proxy.
+
+nxagent-3.0.0-15
+
+- Print the following info when the screen is resized: "Info: Resized
+  screen [<screen number>] to [<width>x<height>].
+
+- Changes to comply with nxshadow library.
+
+- Fixed the height of screen updates in shadowing mode.
+
+- Terminate cleanly if shadowing initialization fails.
+
+- Split shadowing screen updates in smaller rectangles for slow links.
+
+nxagent-3.0.0-14
+
+- Fixed a compilation error in NXrender.c.
+
+nxagent-3.0.0-13
+
+- Changed the LICENSE file to state that the software is only made
+  available under the version 2 of the GPL.
+
+- Added file COPYING.
+
+- Updated the files imported from X.org to the 6.9.0 release.
+
+nxagent-3.0.0-12
+
+- Fixed compilation on Sun platform.
+
+nxagent-3.0.0-11
+
+- Implemented an algorithm adapting colors if the target display have
+  different depth than the shadowed display. It requires that visuals
+  are TrueColor and depths are 16 or 24 or 32.
+
+- Added the option shadowmode. If this option is '0' the shadowing
+  session doesn't interact with the attached session.
+
+nxagent-3.0.0-10
+
+- Changes to comply with the nxshadow component.
+
+nxagent-3.0.0-9
+
+- Applied changes to files imported from X.org sources.
+
+- Updated copyright notices to the current year.
+
+nxagent-3.0.0-8
+
+- Imported changes up to nxagent-2.1.0-17.
+
+- Fixed problem with font path on Solaris 10.
+
+- Disabled some log messages.
+
+- If the agent has blocked when trying to write to the display, try to
+  read other events from the connection.
+
+- After synchronizing expose events, the result of subtraction is not
+  sent immediately, but added to a region. Expose events will be for-
+  warded to clients after exiting from the event loop.
+
+- Critical output is set when button mouse events are received.
+
+- Fixed TR12D01584. X11 sessions could not be started on Mandriva Li-
+  nux 2007 because of a different location of fonts. The font path
+  used by this distribution is now added to the alternates font paths.
+
+- Fixed TR11D01550. Modified the collection of visuals when nxagent
+  opens a display. Now we only use the ones with the same depth than
+  the default one set in the screen.
+
+- Modified the reconnection of pict-format structures, to avoid an
+  error that arises when migrating a session by a Linux machine to
+  a Windows one.
+
+- Small changes in handling of expose events.
+
+- GraphicsExpose are no more forwarded to clients immediately. They
+  are merged with remote-only exposures and sent later.
+
+- Invalidated expose queue elements dealing with destroyed windows.
+
+- Cleaned up code in nxagentSynchronizeExpose().
+
+- Fixed TR10D01541. Now when destroing a window if lastClientWindowPtr
+  point to this window then in nxagentClearClipboard() we put nxagent-
+  ClearClipboard to NULL and lastClientStage to SelectionStageNone.
+
+- Fixed a problem with LazyLevel option that wasn't correctly read
+  from command line.
+
+- Fixed an arithmetic exception raised when the viewable corrupted
+  region is empty but not nil.
+
+- Removed the obsolete 'sss' option.
+
+- Fixed a warning related to the expose queue.
+
+- Modified the queue of exposed region to remove some memmov() calls.
+
+- Remote expose events not having entries in the queue are collected
+  in a global region and sent later, instead of being sent immediate-
+  ly.
+
+- Changed nxagentCheckWindowConfiguration() to prevent unuseful calls
+  to XQueryTree().
+
+- Fixed TR10D01530. Fixed an invalid write in doOpenFont().
+
+- Fixed some invalid write/read in nxagentVerifyDefaultFontPath().
+
+- Fixed TR10D01518. If needed, a restack is performed on the top level
+  windows in rootless mode.
+
+- Fixed TR10D01520. Reviewed session termination and log messages in
+  the case of indirect XDMCP.
+
+- In PictureCreateDefaultFormats(), cleaned the PictFormatRec struct
+  when the format is not supported.
+
+- Fixed TR09D01498. As it is possible to use multiple paths where to
+  store the fonts, now the agent concatenates all the existing font
+  paths used in various XFree/Xorg distributions to obtain a unique
+  default font path.
+
+- Fixed TR09D01502. The privates of the real pixmap are initialized
+  before trying to allocate a virtual pixmap, avoiding the possibility
+  to access an inconsistent structure in case the allocation fails.
+
+- Fixed a memory leak due to a missing deallocation of a virtual pix-
+  map's region.
+
+- Fixed TR08D01486. Removed a warning in NXrender.c.
+
+- Implemented FR08D01470. Now in the reconnection phase missing fonts
+  are replaced by the most similar picked among the available ones.
+
+- Fixed TR08D01480. A condition inside the nxagentWindowExposures
+  function was ignoring the possibility that the first region para-
+  meter could be a null region.
+
+- Fixed TR06D01409. Now NXCollectGrabPointer() is called with the
+  owner_events true in ActivatePointerGrab() .
+
+- Fixed TR03D01317. Increased the time after wich the session termina-
+  tes.
+
+- Fixed TR08D01475. In rootless, ConfigureWindow requests are only
+  forwarded to the X server, even if no window manager has been detec-
+  ted.
+
+- Fixed TR04D01367. An XKB event is sent to notify that keyboard map-
+  ping has changed.
+
+- Check the number of regions in the list before running nxagentSynch-
+  ronizeExpose().
+
+- Reduced the number of GCs used during the drawable synchronization.
+
+- Optimized the corrupted region synchronization trying to use the
+  extents is some circumstances instead of split the full region.
+
+- Checked and removed some FIXME.
+
+- Fixed TR05D01384. Xgl server uses less picture formats than nxagent
+  usually does. Now the PictFormat structures used by nxagent are fil-
+  tered with the ones available for the real display.
+
+- Fixed TR06D01410. Function nxagentRestoreAreas have to make use of
+  a GC with subwindow mode ClipByChildren for preventing from repaint
+  also children of restored window. Children are restored in a separ-
+  ate call, if they have backing store on.
+
+- Fixed TR07D01426. The cursor data were swapped in place if the dis-
+  play had different bitmap bit order. Let Xlib do this work on a copy
+  of the image, preventing from messing up the original data.
+
+- Fixed TR07D01450. Some fonts were missing in the list of available
+  fonts because the ListFonts pattern used to build this list was too
+  much generic. To build a full font list two different patterns have
+  been used.
+
+- Fixed TR07D01449. Some X clients might affect the X screen saver
+  functioning modifying the default properties. The SetScreenSaver
+  request now correctly checks the parameters changes to avoid any
+  issue.
+
+- Fixed TR07D01432. X11 sessions could not be started on Debian 'Etch'
+  because of a different location of fonts. The font path provided by
+  the Debian Policy is now added to the alternates font paths.
+
+- Fixed TR07D01437. The auto suspend timer was reset when it should
+  not.
+
+- Fixed a conditional jump on uninitialised value.
+
+- Fixed TR05D01380. Now migrating a session when display have a 16-bit
+  depth does recover all visuals, avoiding reconnection failure.
+
+nxagent-3.0.0-7
+
+- Fixed problems occurring when the main session is terminated and the
+  connection is refused to the shadow agent.
+
+- Fixed include directory order for Solaris.
+
+nxagent-3.0.0-6
+
+- The shadow agent works only in viewport mode.
+
+- Added nxagentShadowCreateMainWindow function. This function creates a
+  pixmap and a window for mirroring the display root window.
+
+- Added NXShadowUpdateBuffer() function in order to create the buffer
+  for the poller with the same sizes of the root window of the master
+  agent.
+
+- Added NXxrandr.c NXxrandr.h and NXxrandrint.h files.
+
+- If the main agent screen is resized, the shadow agent adapts to the
+  new size of the root window.
+
+- Changed option activating mirror to -S.
+
+- Removed usleep() call when the agent is suspended.
+
+- Input events are sent to the main session even if it is in sus-
+  pended state.
+
+- Updates are made from top to bottom.
+
+- Added the option IgnoreVisibility. If this option is set, PutImage
+  is not skipped when the window is fully obscured.
+
+- Added the option 'shadow' saying the display to attach.
+
+nxagent-3.0.0-5
+
+- Added the mirror mode. It is activated by -M option.
+
+- Recovered the state of keys when the agent in access mode loses
+  focus in mirror mode.
+
+- Changes to work with 16-bit depth display in mirror mode.
+
+- Changed the Imakefile in order to include NXaccess.h and NXaccess-
+  Event.h files.
+
+- The layout keyboard is passed to NXShadowCreate() function in order
+  to load the right keymap file in mirror mode.
+
+nxagent-3.0.0-4
+
+- Small changes to build on 64 bit x86 platform.
+
+nxagent-3.0.0-3
+
+- Fixes to build on Cygwin platform.
+
+- Change the order of include directories in Imakefile.
+
+- Renamed GC.h, Window.h and Pixmap.h to avoid name clashes.
+
+- Undefined NXAGENT_UPDRADE in Composite.c and NXcomposite* files.
+
+- Defined ddxBeforeReset() in Init.c.
+
+nxagent-3.0.0-2
+
+- Merged changes to NXdispatch.c, NXdixfonts.c, NXmiwindow.c, NX-
+  picture.c, NXproperty.c, NXrender.c, NXresource.c, NXwindow.c.
+
+nxagent-3.0.0-1
+
+- Opened the 3.0.0 branch based on nxagent-2.0.0-88.
+
+nxagent-2.0.0-88
+
+- Fixed a memory leak in the code handling the remote font list.
+
+- Removed some log message.
+
+nxagent-2.0.0-87
+
+- The box size is checked during the region synchronization to avoid a
+  possible arithmetic exception.
+
+nxagent-2.0.0-86
+
+- Checked the validity of the colormap in nxagentChangeWindowAttri-
+  butes().
+
+nxagent-2.0.0-85
+
+- Fixed the bad destination coordinates of shared memory pixmap synch-
+  ronization in nxagentCopyArea() and nxagentCopyPlane() functions.
+
+nxagent-2.0.0-84
+
+- Discard the Terminate Server key sequence Ctrl-Alt-BackSpace.
+
+nxagent-2.0.0-83
+
+- Added a workaround to prevent the use of an inconsistent client poi-
+  nter in the nxagentNotifyConvertFailure() function.
+
+nxagent-2.0.0-82
+
+- Fixed the parsing of option 'backingstore'.
+
+nxagent-2.0.0-81
+
+- The agent window visibility on the real X server is used together
+  with the internal state to decide if graphics operations can be
+  avoided.
+
+- When restoring areas, if the backing pixmap is corrupted, an expose
+  event is sent to the region that can't be restored.
+
+nxagent-2.0.0-80
+
+- The core protocol requests internally used to accomplish a Render
+  extension request are no longer propagated to the real X server. To
+  be more precise in this way we can save many XCreatePixmap, XChange-
+  GC and XSetClipRectangles.
+
+- Corrected a minimal incoherence in nxagentCopyArea in managing the
+  creation and deallocation of a region.
+
+- Fixed a double synchronization of an aged drawable during a put ima-
+  ge operation, due to a missing check of nxagentSplitTrap value.
+
+- Added the VisibilityChangeMask bit to the event masks.
+
+- Improved the algorithm which prevents the server client's resource
+  duplication.
+
+nxagent-2.0.0-79
+
+- Added the 'lazylevel' option usable in the command line to specify
+  how much the Agent should be lazy. The default level is 2. Each
+  level adds the following rules to the previous ones:
+
+  Level 0  The lazy is off.
+
+  Level 1  The put images are skipped if we were out of bandwidth,
+           unless that the destination drawable has an old corru-
+           pted region.
+
+  Level 2  No data is put or copied on pixmaps, marking them always
+           as corrupted and synchronizing them on demand.
+
+  Level 3  The put images over the windows are skipped marking the
+           destination as corrupted. When a copy area to a window is
+           requested, the source is synchronized before copying it.
+
+  Level 4  The source drawable is no longer synchronized before a
+           copy area, but the operation is clipped to the synchro-
+           nized region.
+
+- Implemented a dynamic synchronization mechanism, based on user ac-
+  tivity: if the input devices are not used for a variable amount of
+  time (depending from the configured link type), the synchronization
+  starts and goes on until there is enough bandwidth.
+
+- Minor fixes to the way the copy area propagates the corrupted re-
+  gion.
+
+- Whenever a put image is done, a full synchronization is forced on
+  the destination drawable if it has an old corrupted region.
+
+- During the overall synchronization a drawable is skipped if its
+  timestamp is lower than the synchronization interval.
+
+- Updated the copy plane to skip the operations from a corrupted pix-
+  map to another pixmap.
+
+- Fixed the pixmaps synchronization which was not checking the avai-
+  lable bandwidth.
+
+- In rootless mode, ConfigureWindow requests are not internally per-
+  formed for top level windows if a window manager is running. Anyway
+  they are forwarded to the X server.
+
+- Enabled the DPMS extension.
+
+- Fixed the -dpi option.
+
+nxagent-2.0.0-78
+
+- When the remote proxy supports the alpha encoding, the alpha data
+  is sent compressed. When connected to an old version, the agent
+  uses the NXSetUnpackAlphaCompat() call.
+
+- Added support for the RLE pack method.
+
+nxagent-2.0.0-77
+
+- Fixed the check for special keystrokes. State mask for Alt and Meta
+  keys are inferred from the X server modifier map.
+
+nxagent-2.0.0-76
+
+- Fixed application icon in rootless mode.
+
+- If SYNC_WHOLE_GLYPH_DRAWABLE is set in Render.c the whole drawables
+  used in the composite glyphs are synchronized. This is useful to
+  evaluate the policy we should use to minimize the put images.
+
+- Code cleanup in Pixmap.c concerning the synchronization functions.
+
+- Added the nxagentSynchronizeBox() function.
+
+- Setting a wide band link (ADSL, WAN, LAN) disables Lazy and Strea-
+  ming options.
+
+- Now the Lazy option can be switched by the Ctrl+Alt+E keystroke.
+
+- Set a timestamp on a drawable to verify how much old its data are.
+  If we didn't update it since two seconds, the put image operations
+  are not skipped.
+
+- The image data split in chunks smaller than a threshold is now mo-
+  ved from the nxagentPutImage() to the nxagentRealizeImage() func-
+  tion. If a chunk is going to be put on an hidden area of a window,
+  the operation is skipped.
+
+- Fixed the value assigned to the id of the alpha visual. Now it is
+  assigned by XAllocID().
+
+- Removed a call to XSetInputFocus() before mapping the default win-
+  dows.
+
+- Restored the backup display pointer when failing to reconnect the
+  display.
+
+- Fixed some return value in the options parser function.
+
+- Fixed the parsing of environment variable.
+
+nxagent-2.0.0-75
+
+- Optionally split the long X_RenderTrapezoid requests in multiple
+  messages to help the compression.
+
+nxagent-2.0.0-74
+
+- Fixed a bug preventing the reconnection of pictures.
+
+- Fixed the way the agent notify its start up to NX Client. Now the
+  ownership of agent atom is set before the reconnection of pixmaps.
+
+nxagent-2.0.0-73
+
+- Added a check on the display pointer in nxagentTerminateDisplay()
+  to ensure that we don't try to force an I/O error if the display
+  is already down.
+
+- The image operations now are clipped to the visible area of the
+  drawable. As this may hamper the caching algorithm, only source
+  images bigger than 32K are clipped.
+
+- Code cleanup in Render.c.
+
+- When setting SKIP_LOUSY_RENDER_OPERATIONS in Render.c the realiza-
+  tion of some operations is skipped. This is useful to determine
+  how clients (mis)use the RENDER extension to achieve even worse
+  performance than they were able to achieve using the core protocol.
+
+nxagent-2.0.0-72
+
+- Ensured that SIGUSR1 and SIGUSR2 are ignored if the NX transport
+  is not running.
+
+nxagent-2.0.0-71
+
+- Modified the following messages used to track the session state:
+
+  From: "Session: Session starting at..."
+  To:   "Session: Starting session at..."
+
+  From: "Session: Session terminating at..."
+  To:   "Session: Terminating session at..."
+
+nxagent-2.0.0-70
+
+- Removed the obsolete 'Info' messages related to the 'fast' versus
+  'slow' copy area and get image modes. The -slow and -fast options
+  are now ignored as ignored are the keystrokes that allowed switch-
+  ing between the two modes.
+
+- Removed more obsolete warnings and commented the logs left around
+  for test purposes.
+
+- Removed the code in NXdispatch.c handling the fake get-image.
+
+- Removed the flags related to the use of the frame-buffer.
+
+- Major code cleanup in GCOps.c, Window.c, GC.c, Pixmap.c, Screen.c.
+
+nxagent-2.0.0-69
+
+- Added a check to avoid parsing an empty DISPLAY variable.
+
+- Added parsing of the 'streaming' option.
+
+- GetTimeInMillis() function is compiled only if DDXTIME is defined,
+  to avoid double definition errors on Solaris platform.
+
+- Messages "Suspending session..." and "Session suspended..." are not
+  printed if the DE_TERMINATE dispatch exception is set.
+
+- When synchronizing the shared memory pixmaps the image is no longer
+  put on the framebuffer.
+
+- Code cleanup in the nxagentSynhronizeRegion() function.
+
+- Added the 'lazy' option to enable or disable the lazy policy. It is
+  activated by default. At the moment this is configured at compile
+  time and can't be changed through a command line or the option file.
+
+- Fixed the counter of the corrupted backgrounds by checking if the
+  pixmap was already marked.
+
+- The option SharedPixmaps is now activated by default.
+
+- Fixed a problem when synchronizing the shared memory pixmaps with
+  the operation being erroneously skipped.
+
+nxagent-2.0.0-68
+
+- If we are doing a copy area to a pixmap and the source drawable is
+  not synchronized, the destination is marked as corrupted and the co-
+  py area request is not propagated to the X server. As a general rule
+  the source drawables are now synchronized only when they are copied
+  to a visible window.
+
+- The nxagentSynchronizeRegion() function synchronizes the region one
+  box at a time. This solves the incorrect pictures synchronization.
+
+- When a new element is added to the list of exposed region, sending
+  the synchronization request to the X server is postponed to the next
+  call of nxagentFlushConfigureWindow().
+
+nxagent-2.0.0-67
+
+- Ensured that NXTransDestroy() is called when getting rid of the NX
+  transport.
+
+nxagent-2.0.0-66
+
+- The various messages used by the NX server to control the state of
+  the session have been changed and the NX server will have to be mo-
+  dified accordingly.
+
+  At the early startup the agent will print the following message:
+
+  "Info: Agent running with pid '...'."
+
+  Followed by:
+
+  "Session: Session starting at '...'."
+
+  The ellipsis here represent the current timestamp, as reported by
+  the POSIX function ctime():
+
+  Example: Mon May 22 15:07:11 2006.
+
+  After the connection to the remote display has been established,
+  the agent will print the following message:
+
+  "Session: Session started at '...'."
+
+  This replaces the old messages:
+
+  "Info: Session started, state is [SESSION_UP]."
+
+  Or:
+
+  "Info: XDMCP session started, state is [SESSION_UP]."
+
+  And:
+
+  "Info: Entering dispatch loop with exception 0x0."
+
+  If the display connection can't be established, due to a network
+  failure, for example, the agent will exit with a fatal error, for
+  example:
+
+  "Fatal server error:
+   Error: Unable to open display 'nx/nx,options=...'."
+
+  This is a special case, as the X server is still initializing and
+  the agent can't intercept all the possible causes of errors.
+
+  When suspending the session, the agent will print one of the fol-
+  lowing messages, depending on the reason of the disconnection:
+
+  "Session: Suspending session at '...'."
+
+  Or:
+
+  "Session: Display failure detected at '...'."
+  "Session: Suspending session at '...'."
+
+  As soon as the disconnection procedure is completed, the agent will
+  notify the server with the message:
+
+  "Session: Session suspended at '...'."
+
+  This message replaces the old message:
+
+  "Session: Session suspended."
+
+  When entering the reconnection procedure, the agent will print:
+
+  "Session: Resuming session at '...'."
+
+  If the session can be successfully resumed, the agent will print:
+
+  "Session: Session resumed at '...'."
+
+  Otherwise, if the display cannot be opened or if the proxy is not
+  able to negotiate the session, the agent will return in suspended
+  mode by printing:
+
+  "Session: Display failure detected at '...'."
+  "Session: Session suspended at '...'."
+
+  At the time the session be terminated, the agent will print:
+
+  "Session: Session terminating at '...'."
+
+  Followed by:
+
+  "Session: Session terminated at '...'."
+
+  This replaces the old message:
+
+  Info: Exiting dispatch loop with exception 0x2.
+
+  The message 'Session terminated at...' should be the last message
+  parsed by the NX server. From that moment on the NX server will
+  wait the agent process to ensure that the cleanup procedures are
+  completed without errors and that the process successfully termi-
+  nates with the exit code 0.
+
+nxagent-2.0.0-65
+
+- Many improvements to the block handler and to the drawable synch-
+  ronization loop.
+
+- Anyway the synchronization loop is skipped, at the moment, to bet-
+  ter test the new copy area implementation. Also all the put-image
+  on pixmaps are skipped, so that the pixmaps are only synchronized
+  on demand.
+
+- Small fix in the put image to always use the region already allo-
+  cated when marking a region as corrupted.
+
+nxagent-2.0.0-64
+
+- The realization of the put image operations now depends on the
+  state of the link, as reported by the proxy through the synchroni-
+  zation handler. If the proxy link is aproaching a congestion, the
+  destination area of the drawable is marked as corrupted and the
+  operation is skipped.
+
+- At the moment the synchronization strategy is quite unsophistica-
+  ted. The drawables are synchronized when a timeout expires in the
+  block handler. The synchronization loop is aborted as soon as the
+  link approaches again the congestion and is restarted at the next
+  timeout.
+
+- Imported miwindow.c from the DIX layer. The code has been changed
+  to prevent miSetShape() from trying to destroy a null region. The
+  bug appears to be related to the backing store but it is unclear
+  if can also affect the sample server. The region is allocated at
+  the beginning of the function only if the backing store is set for
+  the window. Then miSetShape() calls miChangeSaveUnder(), that, in
+  turn, calls miCheckSubSaveUnder(). The latter can change the back-
+  ing store attribute of -some- windows, including, apparently, the
+  window that miSetShape() is processing. miSetShape() then destroys
+  the region if the backing store is set, but it doesn't verify if
+  the region was actually allocated. The problem is fixed by simply
+  adding a check on the pointer.
+
+nxagent-2.0.0-63
+
+- Added the nxagentDisplaySynchronizationHandler() callback. The NX
+  transport uses the callback to report when it is possible synchro-
+  nize the pixmaps and the other X objects that are corrupted or in-
+  complete.
+
+- Fixed nxagentClearSelection() to correctly validate the selection
+  owner before clearing the record.
+
+- Changed the NXGetControlParameters() call to reflect the changes
+  to the reply.
+
+nxagent-2.0.0-62
+
+- At reconnection the pixmap data is sent to the remote X server only
+  in two cases: if the pixmap is associated to a picture (glyphs, for
+  example) or if its depth is 1 (clip masks of GCs). All the other
+  pixmaps are marked as corrupted and synchronized on demand as soon
+  as the drawable is used as a source. This code is not enabled by
+  default and is currently being tested.
+
+- Implemented a new copy area function synchronizing the corrupted
+  region of a drawable before using it as a source.
+
+- Imported resource.c from the DIX. This makes possible to avoid the
+  duplication of the RT_GC, RT_FONT and RT_PIXMAP resource types.
+
+- Added the RT_NX_GC resource type and removed the old code dealing
+  with the reconnection of the GCs used by the GLX extension.
+
+- Fixed a problem in the synchronization of the window background.
+
+- Checked and removed some FIXMEs related to the streaming code.
+
+- Changed nxagentRestoreAreas() to take care of the width of the win-
+  dow's border.
+
+- Changed nxagentSaveAreas() to be independent from the window's pos-
+  ition.
+
+- Called nxagentMapDefaultWindows() before pixmaps' reconnection.
+
+- Changed nxagentMapDefaultWindows() to notify the client about the
+  agent's startup also when running in rootless mode.
+
+- Added the delete and backspace keystrokes to the routine removing
+  duplicated keys.
+
+- Wehn resizing the desktop the clip region of the children windows
+  is clipped to the new size of the root. This fixes a crash occur-
+  ring when resizing the desktop to the minimum height.
+
+nxagent-2.0.0-61
+
+- Changed the extraction of alpha channel from images to be endianess
+  independent.
+
+nxagent-2.0.0-60
+
+- nxagentReleaseSplit() now uses the NXAbortSplit() request to force
+  the proxy to discard the pending splits.
+
+- Added the value of the SharedMemory and SharedPixmaps options in
+  the log, together with the size of the shared memory segment used
+  by the remote proxy.
+
+- Fixed the compilation problem affecting the previous version.
+
+- The location of xkb base directory is checked by calling  _NXGetXkb-
+  BasePath() function.
+
+- Fixed TR05D01371. nxagentVerifyDefaultFontPath() is called only if
+  the default font path is not defined on the command line.
+
+- Removed some log message.
+
+nxagent-2.0.0-59
+
+- Improved the composite text operation to synchronize the regions
+  affected by the operation instead of the whole drawable.
+
+- Updated the copy plane to better propagate the corrupted region
+  to the destination.
+
+- The background pixmaps are synchronized with a deferred strategy.
+  Tiles and stipples are still synchronized as soon as the GC needs
+  to be used.
+
+- Completed the new copy area implementation.
+
+- Shared memory pixmaps are not synchronized after a RenderChange-
+  Picture operation. This needs further testing.
+
+- Added a nxagentNotifyKeyboardChanges() function that sends a Map-
+  pingNotify event to clients when the keyboard is reloaded or re-
+  configured. The SendMappingNotify() function is not used anymore.
+  This hopefully solves the TR01D01284.
+
+- Moved the nxagentResetKeyboard() function in Keyboard.c.
+
+- Checked if the previous sibling of a window is changed before try-
+  ing to restack it. This saves the redundant window configuration
+  requests of the previous version.
+
+nxagent-2.0.0-58
+
+- Before composite glyphs operations, only areas intersecting the
+  glyphs extents are synchronized.
+
+- When a new split resource is allocated, a copy of the GC used by
+  the put image operation is created. Such copy will be safely used
+  by the commit operation even if the original GC is changed or
+  destroyed.
+
+nxagent-2.0.0-57
+
+- Region saved by the backing store and corrupted region of backing
+  store pixmaps are emptied at suspend and resume time. This makes
+  the exposures go to the clients that will redraw their windows.
+
+- Changed the nxagent root window cursor. The cursor of the parent
+  window is used instead of the default 'X' cursor.
+
+nxagent-2.0.0-56
+
+- Rewritten the state machine handling the streaming of the images.
+
+- By calling FatalError(), the normal server shutdown was skipped
+  and left the X server socket in .X11-unix. This happened also if
+  for any reason the agent couldn't complete the session startup.
+  Now the DDX abort routine, if the agent is not exiting because of
+  an exception, calls nxagentAbortDisplay() which closes down the
+  well known sockets.
+
+- Upon a failure of the reconnection procedure, if the alert shown
+  to the user by leveraging the proxy control channel is not set
+  to a valid code, the function in will use a default.
+
+nxagent-2.0.0-55
+
+- Added an explicit link flush in the display block handler. The
+  block handler should now be called by nx-X11 before entering the
+  select, not only the the agent has entered WaitForReadable() or
+  WaitForWritable().
+
+- Removed the checks on the value of the Streaming option. The way
+  a drawable is treated only depends from its previous state.
+
+- Started reimplementing the copy area operation to better propaga-
+  te the corrupted region to the destination.
+
+- Shared pixmaps are now synchronized before a copy plane operation.
+
+- The unpack alpha is discarded before the drawable synchronization.
+  This fixes the problems with the synchronization of the cursor. A
+  better way to deal with the condition is to be considered for the
+  future.
+
+- Added a check in the nxagentPutImage() function to skip the opera-
+  tion if the window is fully obscured.
+
+nxagent-2.0.0-54
+
+- Fixed a bug in nxagentPaintWindowBackground(). A region passed as
+  parameter was modified by this function and this affected subseq-
+  uent operations involving the region.
+
+- In rootless mode, the map state of a top level window is uncondit-
+  ionally reflected in the internal state when receiving a map event
+  from the real display.
+
+nxagent-2.0.0-53
+
+- Regions are marked as synchronized after an image operation if the
+  image didn't generate a split.
+
+- When an image operation takes place on a drawable which is already
+  being streamed, the resource is marked as invalid and the commits
+  are discarded.
+
+- A specific trap is used at the time a drawable is synchronized.
+
+- Fixed Render.c to use the latest streaming code.
+
+nxagent-2.0.0-52
+
+- Fixed a problem in rootless mode where some windows could have mis-
+  sed to update the mapped flag after a MapNotify event.
+
+nxagent-2.0.0-51
+
+- Realization of images is skipped, if the link is down, and a small
+  delay is introduced before returning from the image function.
+
+- Started implementing a new handler to let the agent include arbit-
+  rary data in the transport statistics. For now, only the interfa-
+  ces and the stubs exist, and the handler is not registered to the
+  proxy.
+
+nxagent-2.0.0-50
+
+- Removed the unused code in nxagentCheckPixmapIntegrity().
+
+- Instead of calling nxagentShapeWindow() immediately, windows to be
+  reshaped are added to the list of windows that have to be configur-
+  ed at later time. This allows SaveAreas() to work even when windows
+  change shape, as in the case of the "bouncing cursor" as implement-
+  ed in some versions of the KDE.
+
+- Added a missing call to nxagentFlushConfigureWindow() in the recon-
+  nection procedure.
+
+nxagent-2.0.0-49
+
+- Code cleanup in the lazy encoding. Implemented distinct utilities
+  to allocate the split resources and manage the corrupted areas.
+
+- The Render.c file is taken from the previous version because the
+  updates break the composite code.
+
+- Renamed the option 'Lazy' to 'Streaming'.
+
+nxagent-2.0.0-48
+
+- Made the image cache use the agent data, instead of allocating and
+  copying.
+
+- Fixed a memory leak in the image routines.
+
+- The image cache is freed at exit. This helps investigating other
+  eventual leaks.
+
+nxagent-2.0.0-47
+
+- Solved the problem at reconnection with lazy encoding enabled.
+
+nxagent-2.0.0-46
+
+- Solved a bug in the parsing of the pack method that made the agent
+  select an unavailable id.
+
+nxagent-2.0.0-45
+
+- Ensured that images are explicitly byte swapped before sending to
+  an X server using a different byte order. In the attempt of saving
+  an expensive operation, the previous code let the unpack procedure
+  do the job, but this could fail to work in some special cases.
+
+- Cleaned the bitmaps used for the core cursors before putting the
+  image.
+
+- Left the display error handler installed during all the lifetime
+  of the session so that other parts of the code don't have to inst-
+  all it explicitly before entering a critical Xlib routine.
+
+- Removed more unused code.
+
+nxagent-2.0.0-44
+
+- Fixed the problem with the cursor image being encoded with a lossy
+  method. The fix is a temporary. The final solution requires changes
+  to the lazy encoding.
+
+- Reworked the code dealing with the alpha visual. The color mask is
+  set based on the endianess of the remote display and is recreated
+  after a session resume.
+
+- Removed more unused code.
+
+nxagent-2.0.0-43
+
+- Corrupted regions are now correctly clipped to the visible area of
+  the drawable.
+
+- Fixed a problem with the clip mask when calculating the intersect-
+  ion of the clip region with the destination region.
+
+- Drawables involved in a composite glyph operation are now synchro-
+  nized prior to being used.
+
+- The nxagentRealizeDrawable() function is now called only for draw-
+  ables that are not already synchronized.
+
+- Pixmaps are now skipped in the synchronization loop. Synchronizat-
+  ion of pixmap is to be implemented.
+
+nxagent-2.0.0-42
+
+- Improved the algorithm removing the duplicated keys by trying to
+  read more events.
+
+nxagent-2.0.0-41
+
+- Made use of the NXFinishSplit() request to speed up the completion
+  of a pending split.
+
+- Added an explicit NX transport flush before any operation that may
+  block waiting for data from the X server.
+
+- Set the NX flush policy to deferred after reconnection.
+
+- Solved refresh problems when reconnecting in rootless mode.
+
+- Modified the routine removing duplicated arrow key events. Now the
+  routine deals with page down and page up keys as well.
+
+- Added a check for xkb base directory path, in order to support new
+  Linux distributions.
+
+- Disabled backing store support for rootless sessions, as implement-
+  ation is not very functional, yet.
+
+nxagent-2.0.0-40
+
+- Removed code related to old managing of backing store.
+
+- Added initialization of backing store by calling miInitializeBack-
+  ingStore().
+
+- Implemented nxagentSaveAreas() and nxagentRestoreAreas() functions.
+  These functions are based on fb code. Calls to XCopyArea() have been
+  added in their implementation to make them be effective also on the
+  real X server.
+
+- Instead of calling nxagentConfigureWindow() in ClipNotify() and
+  PositionWindow(), windows to be configured or mapped are added to a
+  list, together with a mask storing operation that have to be done.
+  Windows in the list will be configured or mapped later by calling
+  nxagentFlushConfigureWindow(). This avoids that windows were mapped
+  or configured before saving areas in the backing store pixmaps.
+
+- The function nxagentFlushConfigureWindow() is called before resto-
+  ring areas on the X server in nxagentRestoreAreas() and at the end
+  of ConfigureWindow and MapWindow in the DIX layer.
+
+- Blocked the NoExpose events at the proxy side.
+
+- Fixed an error in nxagentCompareRegions().
+
+nxagent-2.0.0-39
+
+- Ensured that the display errors are detected while waiting for a
+  split operation to complete.
+
+- Removed more unused code.
+
+nxagent-2.0.0-38
+
+- Changed nxagentSetCursorPosition() to avoid warping the cursor if
+  the requesting client is NULL or the serverClient.
+
+- Added a specific trap to avoid compressing an image associated to
+  a RENDER cursor using a lossy encoding.
+
+nxagent-2.0.0-37
+
+- Added a check in nxagentPaintWindowBackground() to avoid calling of
+  XClearArea() if the window is not realized.
+
+- Modified nxagentAtomNames in Atoms.c to include CLIPBOARD and TIME-
+  STAMP atoms, avoiding further calls to XInternAtom in Clipboard.c.
+
+- Solved TR04D01356. Auto repeat mode setting is no more propagated to
+  the X server keyboard.
+
+- Cleaned up the code in the routine removing duplicated arrow key
+  events.
+
+nxagent-2.0.0-36
+
+- Added the Literals.h file. For now it just contains a table used
+  to translate a request opcode to the name of the X request, to be
+  used for test purposes.
+
+nxagent-2.0.0-35
+
+- Major code rewrite in nxagentPutSubImage(). Removed support for the
+  deprecated image encodings. Ensured that padding bytes are cleaned
+  before trying to locate the image in the nxcompext cache. Avoided
+  to store the image in the cache if it is coming from a XVideo or
+  GLX operation.
+
+- Added support for the new RGB image encoder. This allows the agent
+  to use the simplest encoding by still separating the alpha channel
+  from the image data.
+
+- Added the missing check in nxagentRedirectWindow() verifying that
+  use of the composite extension is enabled.
+
+- Updated to use the new NXCleanImage() function.
+
+- Removed more debugging output.
+
+nxagent-2.0.0-34
+
+- Updated to use the 'what' parameter in NXFlushDisplay().
+
+- Removed the duplicated arrow key events from the event queue.
+
+- Solved the TR04D01355. The X11 agent now tries to locate the
+  fonts.dir file in the misc directory, to verify the validity of
+  the font path.
+
+- Added a check in nxagentChangeClip to avoid creating a new clip
+  mask if the old clip mask matches the former.
+
+- Use the 'fixed' font to replace fonts that are not found a the
+  display reconnection. This should overcome one the most common
+  sources of troubles when migrating the session to a different
+  display, and constitute the base for improving the algorithm
+  trying to match a substitute font.
+
+- Implemented the FR04D01360. Now the user can enable/disable the
+  streaming of the images by using the option 'streaming'.
+
+- Implemented the FR04D01358. The backing-store can be enabled or
+  disabled by using the  option 'backingstore'.
+
+- Forced the reconnection routine to call the IOError handler in
+  the case the display cannot be opened.
+
+nxagent-2.0.0-33
+
+- The GetImage requests in 'slow' mode are now served by retrieving
+  the content of the drawable from the frame buffer.
+
+- Replaced a call to XQueryExtension() by one to XRenderQueryExten-
+  sion(). This function caches previous QueryExtension requests. This
+  partially implements FR01D01275.
+
+- At reconnection, the keyboard is reset only if the keyboard option
+  has been changed.
+
+- Fixed the fonts reconnection procedure. Now the remote fonts list
+  is refilled before fonts reconnection and after failed fonts
+  reconnection, so as to store the correct list of available fonts.
+
+- Added a check in nxagentLoadQueryFont to look up selected font in
+  the list of available fonts. This check avoid filling FontStruct
+  with invalid data.
+
+- Added TIMESTAMP to handled selection targets.
+
+nxagent-2.0.0-32
+
+- Implemented FR03D01323. Added the 'clipboard' option to enable or
+  disable copy and paste operations from the user's desktop to the NX
+  session or vice versa. This option can take four values:
+
+  client  The content copied on the client can be pasted inside the
+          NX session.
+
+  server  The content copied inside the NX session can be pasted
+          on the client.
+
+  both    The copy & paste operations are allowed both between the
+          client and the NX session and viceversa.
+
+  none    The copy&paste operations between the client and the NX
+          session are never allowed.
+
+nxagent-2.0.0-31
+
+- Implemented FR03D01337. Now the X11 agent is able to read the op-
+  tions from different places according to the following order: the
+  DISPLAY variable, the options file, the command line.
+
+- Implemented FR03D01347. Added 'composite' to parsed options.
+
+- Always activate shared memory support in the remote X server proxy.
+
+- Modified nxagentCopyArea for the case the source is a shared memory
+  pixmap. The pixmap on the X server is not synchronized, but the con-
+  tent of the shared pixmap mantained by the agent is placed directly
+  on the destination drawable. This allows to skip the following Copy-
+  Area operation.
+
+nxagent-2.0.0-30
+
+- Added the missing flush of the Xlib buffer at the beginning of
+  the block handler.
+
+nxagent-2.0.0-29
+
+- Changes in the block and wakeup handlers to queue multiple reads
+  and flush the link on demand.
+
+- Removed the unused code in Control.h and Control.c. Renamed the
+  files as Client.h and Client.c.
+
+- Added support for the '-nocomposite' command line option.
+
+nxagent-2.0.0-28
+
+- Moved the composite code to Composite.h and Composite.c.
+
+- Redirected the top-level windows when running in rootless mode.
+
+nxagent-2.0.0-27
+
+- When the composite extension is supported by the remote display,
+  the agent window is redirected to the off-screen memory of the
+  X server.
+
+- Imported Xcomposite.c, Xcomposite.h and xcompositeint.h from the
+  3.0.0 branch to be able to activate the off-screen redirection of
+  the top level windows.
+
+- Added Composite to the list of agent options. The default is to
+  use the composite extension, when available.
+
+nxagent-2.0.0-26
+
+- Avoided to suspend the clients on excess of karma or after a get
+  input focus request.
+
+- Images are now split only when the agent is in congestion state.
+
+- Moved all the image related functions from GCOps.h and GCOps.c to
+  Image.h and Image.c.
+
+- Removed the unused includes in GCOps.c and Image.c.
+
+- Added the karma delay field to the NXGetControlParameters() call.
+
+- Renamed placeholder.xpm as nxmissing.xpm. Renamed the Icon.h file
+  as Icons.h. Added there a define to point at nxmissing.xpm in the
+  include.
+
+nxagent-2.0.0-25
+
+- Implemented the FR03D01334. Option keyboard is now a synonym of
+  option kbtype.
+
+nxagent-2.0.0-24
+
+- Ensured that the split procedure is completed before executing a
+  render operation that required a synchronization of a shared mem-
+  ory pixmap.
+
+- Added the appropriate checks to avoid synchronizing the same sha-
+  red memory pixmap multiple times.
+
+nxagent-2.0.0-23
+
+- Imported changes to NXrender.c and NXshm.c in the files for the
+  3.0.0 port.
+
+nxagent-2.0.0-22
+
+- Implemented FR03D01331. Options shpix and shmem enable/disable the
+  use of shared pixmaps and shared memory extension.
+
+- Implented handling of value "query" for nxagentKbtype. This value
+  is passed by the NX client for MacOSX. If value of nxagentKbtype is
+  "query" or NULL we init keyboard by core protocol functions reading
+  the keyvoard mapping of the X server. The property _XKB_RULES_NAMES
+  is always set on the root window with default values of model and
+  layout.
+
+- Fixed TR11C01223. When the XDM connection can't be established the
+  agent creates an alert to notify the user that XDM session failed
+  to start.
+
+- Changed Clipboard.c to fix invalid read errors in nxagentGetClip-
+  boardWindow() function.
+
+- Implemented FR11C01218. Modified Font.c introducing the new function
+  nxagentLoadQueryFont, this function loads the font_struct struct
+  locally instead of sending a QueryFont request.
+
+- Modified nxagentListRemoteFontsfunction to fill nxagentFontList
+  struct with all remote fonts, avoiding further calls to XListFonts.
+
+- Added two functions, nxagentFreeRemoteFontList and nxagentFreeFont,
+  used in disconnect phase to empty the nxagentFontList struct and
+  the cached FontStruct elements, respectively.
+
+nxagent-2.0.0-21
+
+- Updated to include the remote proxy version in the NXGetControl-
+  Parameter reply.
+
+- Updated to use the NXDisplayFlush() and NXSetDisplayPolicy() int-
+  erfaces.
+
+nxagent-2.0.0-20
+
+- NXInitDisplay() and NXResetDisplay() are called at the time we
+  open or close the display, to let nxcompext set up its internal
+  structures.
+
+nxagent-2.0.0-19
+
+- Activated the streaming of the images even in the case of a link
+  type LAN.
+
+- In NXmiexpose.c, if the number of rectangles in an exposed region
+  exceeds 4, we let a predicate function decide if it is better to
+  send the window extents, rather than the rectangles in the region.
+
+- Added the NXAGENT_SERVER define in the Imakefile. It will be used
+  in future to mark all the modifications made to files we imported
+  from other layers.
+
+- Removed the warnings from NXmiexpose.c.
+
+nxagent-2.0.0-18
+
+- Imported NXmiexpose.c in the agent code.
+
+- Removed NXmiwindow.c from the agent code. We now use the original
+  miwindow.c
+
+- Removed the static qualifier from the _NXFontPath definition.
+
+- Started implementing the new lazy encoding mechanism. For each of
+  the drawables, the agent will create a "corrupted" region and will
+  try to synchronize the drawable when there is bandwidth available.
+  This is a work in progress.
+
+- Implemented the function nxagentFbOnShadowDisplay. This is a test
+  facility which opens a window on the display showing the content
+  of the agent's framebuffer.
+
+nxagent-2.0.0-17
+
+- The image streaming procedure is now activated also when using a
+  link of type LAN.
+
+- Removed the call to NXTransDestroy() in nxagentCloseDisplay. The
+  NX transport is now implicitly shut down by either NXForceDisplay-
+  Error() or XCloseDisplay().
+
+- Updated to comply with the new NX function prototypes introduced
+  in nxcomp-2.0.0-31.
+
+nxagent-2.0.0-16
+
+- Fixed a bug in the nxagentModifyPixmapHeader function that was
+  causing some glyphs to be displayed incorrectly.
+
+- Implemented the test function nxagentPixmapOnShadowDisplay, useful
+  to display a pixmap on the real screen to check its consistency.
+
+nxagent-2.0.0-15
+
+- Ensured that, before restarting a client after a no-split, all the
+  pending image commits are executed.
+
+- Installed the display error predicate function before trying to
+  open the display even at session startup. This prevents the agent
+  from disappearing silently if a failure occurs before the display
+  initialization is completed.
+
+- Moved the initialization of the callback functions in Display.c.
+
+- Added some interfaces to manipulate the callbacks and the error
+  handlers and verify the state of the display flags.
+
+nxagent-2.0.0-14
+
+- Implemented stub versions of the nxagentDisplayCongestionHandler()
+  and nxagentDisplayBlockHandler() callbacks. See nx-X11-2.0.0-17.
+
+- Added the nxagentDisplayErrorPredicate() function. In combination
+  with changes implemented in nx-X11-2.0.0-16, this allows the agent
+  to abort a blocking operation and shutdown the display in a timely
+  fashion if a signal or any other error condition is received insi-
+  de Xlib.
+
+- Modified nxagentWaitSplitEvent() to use XIfEvent() as we can trust
+  the proxy to either send the event or give up the proxy connection.
+  The function will also give up when an error condition is raised,
+  like for example a session termination requested by the user.
+
+- Removed any remaining reference to the unused display buffer and
+  image cleanup functions.
+
+- Fixed exposures problems when reconnecting.
+
+- Solved TR05C00896. The problem was due to window manager utilizing
+  zero-thick-lines drawing requests. These drawing operations are now
+  performed by calling fbPolySegment() instead of miPolySegment(),
+   which doesn't handle the zero-thick-lines drawing case.
+
+nxagent-2.0.0-13
+
+- Improved the management of the expose events. We now create the
+  fake window used to keep the agent synchronized with the X server
+  only once, instead of creating and configuring a different window
+  for each generated region.
+
+- A warning is printed if the changes requested for the fake window
+  don't match the changes reported in the subsequent ConfigureNotify
+  event.
+
+- Imported previous changes in NXevents.c into the 3.0.0 port.
+
+nxagent-2.0.0-12
+
+- Activated the image streaming also during the reconnection. This
+  makes possible to leverage the remote disk cache.
+
+- Ensured that all clients are restarted when the session is suspen-
+  ded. This is required because the proxy is gone but we may have
+  some client still waiting for the completion of a split procedure.
+
+- Skipped the reset of the keyboard device if the display breaks at
+  the time it is being reconnected.
+
+- As the reset of the keyboard may have failed before we were able
+  to set a valid DeviceIntPtr, also added a check in ProcessPointer-
+  Event(), in NXevents.c to verify that the state of the display is
+  valid before accessing any of the device members. This is to be
+  better investigated.
+
+nxagent-2.0.0-11
+
+- Solved TR02D01298. The clip region associated to the current glyph
+  was not updated because the serial number of the virtual pixmap
+  pointed by the picture was not incremented.
+
+- Imported the NXmiglyph.c file from render directory.
+
+- Removed the patch added in the release 1.3.2-6 temporary fixing this
+  problem.
+
+nxagent-2.0.0-10
+
+- Various improvements the wakeup procedures.
+
+- Implemented the FR10C01110. Now, the X11 agent manages both the
+  PRIMARY and CLIPBOARD selections. It is possible copy and paste text
+  also by using Ctrl+C and Ctrl-V.
+
+- Modified NXdispatch.c in order to correctly include header files.
+
+- More cosmetic changes and code cleanup.
+
+- Imported changes into the files for the 3.0.0 port.
+
+nxagent-2.0.0-9
+
+- Rewritten the procedures suspending and resuming the clients in
+  Control.c. This solves a problem with clients that were restarted
+  at wrong time and should ensure that multiple events for the same
+  client are correctly handled.
+
+- Removed the calls to NXSetUnpackGeometry() setting the parameters
+  for the client 0. The geometry is now set only at the right time,
+  just before trying to unpack the image.
+
+- Removed the sample code using the NXTransChannel() interface.
+
+nxagent-2.0.0-8
+
+- Added test code showing how to open a new NX channel by using the
+  NXTransChannel() interface.
+
+- Streaming of images is not attempted in the case of link LAN.
+
+- Added preliminary code to the tell the proxy to flush the link if
+  the agent is idle.
+
+- Imported changes from nx-X11-2.0.0-14 in NXdixfonts.c.
+
+nxagent-2.0.0-7
+
+- Modified exposures managing: agent synchronizes both with remote X
+  server and remote window manager for every generated region. Synch-
+  ronization is reached sending a ConfigureWindow request for a fake
+  window created on purpose. This way the exposures for the resulting
+  region coming from calculating the difference between local region
+  and the remote region are sent to clients in order to avoid duplica-
+  ted refreshes.
+
+- Improved new algorithm for managing exposures in order to work pro-
+  perly also in rootless mode: added privates to windows in order to
+  get information about mapping of windows on remote X server and vi-
+  sibility state too. This way local exposures are replaced by remote
+  ones if windows are mapped only for agent or windows are not fully
+  visible. This solves TR08C00971.
+
+- Window attributes values about backing store and save-under are re-
+  spectively set to NotUseful and False when creating a window on re-
+  mote X server and ignored when a client requests to change these
+  attributes.
+
+- Removed a no more needed function call to generate exposures when
+  resizing windows.
+
+nxagent-2.0.0-6
+
+- Updated the NoMachine copyright notices.
+
+nxagent-2.0.0-5
+
+- Added handling of font reconnection failure. In case of failure in
+  reconnecting some font, the agent adds the font server connection
+  forwarded by nxcomp to the font path of the X server.
+
+- Fixed TR09C01022. Moved the handling of the session states into
+  main cycle. The session states are not more handled into SIGHUP and
+  IOError handlers but into nxagentHandleConnectionStates() called in
+  nxagentWakeupHandler().
+
+- In ResizeChildrenWinSize(), privates storing window geometry are
+  updated even if the call to PositionWindow() is skipped. This have
+  to be done because the window is moved by the X server accordingly
+  with window gravity. This prevent some window positioning error on
+  the real display evidenced with OpenOffice and GNOME.
+
+nxagent-2.0.0-4
+
+- Solved TR12C01234. In some conditions Alt-F4 keystroke made the user
+  unable to open the Gnome Menu panel. This was due to the agent dis-
+  carding KeyRelease events for Alt-F4 and Alt-F2.
+
+- Undefined TEST and DEBUG in Dialog.c
+
+- Changed the NXAGENT_VERSION define from 1.5.0 to 2.0.0
+
+- Caching and streaming of images is now disabled when dispatching
+  requests from the GLX and XVideo extensions.
+
+- Added the NXxvdisp.c and NXglxext.c files. These files are needed
+  to intercept calls to the XVideo and GLX extensions. Only files
+  in the main directory are imported. Files in the X directory, used
+  for the 3.0.0 port, for now are empty.
+
+- Added the nxagentXvTrap and nxagentGlxTrap flags. These flags are
+  set when dispatching requests from the XVideo and GLX extensions.
+
+- Added the GL and Xext include directories to the Imakefile to be
+  able to compile the NXxvdisp.c and NXglxext.c sources.
+
+- Modified the NXrender.c and NXshm.c files to set the nxagentGCTrap
+  nxagentRenderTrap and nxagentShmTrap even when dispatching requests
+  from swapped clients. Files for the 3.0.0 port are not updated.
+
+nxagent-2.0.0-3
+
+- Solved a problem in the export of WM_SIZE_HINTS properties in root-
+  less mode on 64 bit machines.
+
+- Modified Render.c in order to correctly process Xrender header fi-
+  les on 64 bit machines.
+
+- Made changes in order to compile the agent in the Cygwin environ-
+  ment.
+
+- Renamed the files Time.* to Millis.*
+
+- Specified the relative path of some included header files.
+
+- In the Imakefile added a new include paths order related to the
+  Cygwin environment to avoid name clashes.
+
+- Disabled the MIT-SHM extension in the Cygwin environment.
+
+- Fixed TR11C01186. Added -timeout item to the usage message.
+
+- Fixed TR08C00945. Scrolling a document in Firefox caused image left-
+  overs with animated banners. Set the right window gravity on windows
+  created in the real X server. Let X move children for us accordingly
+  with window gravity attribute, without dix interferences.
+
+- Removed logs related to parsing of the options file.
+
+- Modified dialogs in order to show the name of the session in the
+  caption.
+
+nxagent-2.0.0-2
+
+- Imported changes up to nxagent-1.5.0-112.
+
+- Fixed TR12C01241. The failure condition returned by the XQueryTree
+  function is managed in order to avoid the subsequent errors.
+
+- Fixed the TR11C01165. X11 sessions could not be started on Ubuntu
+  5.10 because of the different location of fonts. Now we check the
+  existence of the fonts directory pointed by the default XF86 and
+  X.org font path and, if the directory does not exist, we use the
+  alternate font path used on Ubuntu.
+
+- Set the default value of DeviceControl option to False before resu-
+  ming a session.
+
+- Added a warning message printed if reset of keyboard fails at recon-
+  nection.
+
+- Fixed TR11C01185. Solved by checking if there are windows iconized
+  when a window is destroyed.
+
+- Fixed TR11C01164. The xkbcomp process used LD_LIBRARY_PATH as it was
+  a child of the agent. Added a call to NXUnsetLibraryPath() in Init.c
+  in order to remove LD_LIBRARY_PATH before executing a child process.
+
+- Check if there are windows iconized before terminating a rootless
+  session.
+
+- Modified CHANGELOG to include reference to fixed TRs TR08C00967 and
+  TR08C00969. Removed some typo.
+
+- Fixed TR11C01194. The agent crashed if launched with -kb option.
+
+- Fixed TR10C01042. The keyboard didn't work if the session migrated
+  from Apple X server to another platform and viceversa. This has been
+  solved by initializing the keyboard device whenever the session is
+  resumed. This feature can be disabled by the new option -nokbreset.
+
+- Fixed some compilation error arising if TEST was enabled in the file
+  Keyboard.c.
+
+- Fixed TR11C01167. During the disconnection the font structures poin-
+  ted by the font cache were freed leaving inconsistent data in the
+  corresponding privates. Now they are nullified and the GCs are che-
+  cked to guarantee a correct font handling in the suspended state.
+
+nxagent-2.0.0-1
+
+- Opened the 2.0.0 branch based on the 1.6.0-11.
+
+nxagent-1.6.0-11
+
+- Updated the NX.original copies of files in X directory.
+
+- Merged the NX changes:
+
+  - From dix/extension.c to NXextension.c.
+  - From dix/dixfonts.c to NXdixfonts.c.
+  - From dix/glyphcurs.c to NXglyphcurs.c.
+
+- Export of CARDINAL properties are expanded to 64 bit units on 64
+  bit machines.
+
+- Solved a segmentation fault when handling configure notify events
+  in rootless mode on 64 bit machines.
+
+- Merged the NX changes from dix/property in X/NXproperty.c.
+
+- Correctly allocated the local variable used in the call to NXGet-
+  CollectedInputFocus to be of 64 bit on 64 bit machine.
+
+- Defined symbolic constants XlibWindow in order to propertly handle
+  export property on 64 bit machine.
+
+- Moved the XlibAtom define from Atoms.h to Agent.h.
+
+- Modified export properties of type Window and Atom in order to han-
+  dle correctly Window and Atom types on 64 bit machines.
+
+- Removed some invalid read in Atom handling code when compiled for 64
+  bit, due to mismatched size of Atom type between Xlib and Xserver
+  code.
+
+- Modified some header files in order to properly see the correct pro-
+  totypes of some Xlib structures on 64 bit machines.
+
+- The variable currentDispatch is always defined.
+
+- The dispatch current time is updated, this way the initial timeout
+  can elapse and the splash window is removed.
+
+nxagent-1.6.0-10
+
+- Imported changes from nxagent-1.5.0-103.
+
+- Removed some redundant redeclarations.
+
+- Merged the NX changes from randr/randr.c to NXrandr.c.
+
+- Removed some warnings in NXrandr.c.
+
+- Removed NXAGENT_FORCEBACK and NXAGENT_INTERNALBS code.
+
+- Added ddxInitGlobals function in order to compile with the new X.org
+  tree.
+
+- Converted nxagentSynchronizeShmPixmap from macro to function to
+  solve a graphical render problem caused by the variable's scope.
+
+nxagent-1.6.0-9
+
+- Imported changes from nxagent-1.5.0-102
+
+- Fixed TR10C01124. Function nxagentSetPictureFilter() filled the log
+  with  a debug message.
+
+- Removed a debug message in Events.c.
+
+- Run function nxagentSetTopLevelEventMask() only in rootless mode.
+
+- In the Java application IntelliJ the dropdown menus was shown in a
+  wrong position when the main window was moved or minimized. The
+  problem is solved for KDE desktop environment.
+
+- Fixed TR08C00967, TR08C00969, TR08C00941. Our incomplete implementa-
+  tion of the MIT-SHM X11 extension was a problem for some applica-
+  tions using the Shared Memory Pixmaps. Now the extension support has
+  been completed, so the nxagent can handle the Shared Memory Pixmaps
+  requests. Introduced some changes in the render implementation to
+  synchronize the content of the Shared Memory Pixmaps with the X ser-
+  ver before performing the ChangePicture and Composite operations.
+
+nxagent-1.6.0-8
+
+- Fixed TR09C01028. The problem was the GC foreground was not updated
+  on the X server. This was due to the private fields was not copied
+  from a GC to another in the function nxagentCopyGC(). Added macro
+  nxagentCopyGCPriv in GC.h.
+
+- Solved TR11C01162. Removed the dialog shown by nxcomp/nxagent when
+  the resume of a session is happening over a slow link.
+
+nxagent-1.6.0-7
+
+- Imported changes up to nxagent-1.5.0-100.
+
+- Fixed some compilation errors.
+
+- Fixed a typo in nxagentChangeClip() declaration.
+
+- Fixed TR10C01040. After the session resume the applications using
+  OpenGL were not correctly resumed because some GCs were not recon-
+  nected. Now we save these GCs in a safe vector, so we can't lose
+  them.
+
+- Improved font reconnection procedure in order to take advantage of
+  new font channel provided by nxcomp. If resuming session fails be-
+  cause missing fonts, the font channel provided by nxcomp is added
+  to font paths of X server. After reconnection succeded the font
+  channel is removed from font paths.
+
+- In the Java application IntelliJ the dropdown menus remained opened
+  and shown in a wrong position when the main window was moved or
+  minimized. This problem has been solved by sending a sinthetic event
+  to client. This solves partially TR09C01012.
+
+- In the same application the caret was not shown in the text window.
+  Solved the problem by setting nxagentGCTrap before calling a MI
+  function in every GC operations.
+
+- Merged the NX changes:
+
+  - From render/glyph.c to NXglyph.c.
+  - From Xext/shm.c to NXshm.c.
+  - From render/render.c to NXrender.c.
+  - From mi/miwindow.c to NXmiwindow.c
+  - From render/glyphstr.h to NXglyphstr.h.
+  - From render/picturestr.h to NXpicturestr.h.
+  - From render/picture.c to NXpicture.c.
+  - From dix/dispatch.c to NXdispatch.c.
+  - From dix/events.c to NXevents.c.
+
+- Changed picturestr.h glyphstr.h to remove some formatting changes
+  compared to the original files.
+
+- Disabled Xinerama extension in order to fix a type conflict in NX-
+  dispatch.c.
+
+- The current directory has been moved in front of the include dire-
+  ctory list.
+
+- Removed NXAGENT_FORCEBACK code in files imported from DIX.
+
+- Changed NXshm.c NXrandr.c NXproperty.c  NXpicture.c NXglyphcurs.c
+  NXglyph.c NXextension.c NXrender.c NXdixfonts.c NXdispatch.c NXmi-
+  window.c to remove some formatting changes compared to the original
+  files.
+
+- Added copyright notice to file NXrandr.c.
+
+- All files, except those from mi and dix, compile fine in the new
+  tree. Problems remain with different size of Atoms and other XID
+  objects.
+
+- More compilation fixes for the new tree.
+
+- Merged the NX changes from dix/window.c to NXwindow.c.
+
+- Changed NXwindow.c and NXevents.c to remove some formatting chan-
+  ges compared to the original files.
+
+- More compilation fixes aimed at porting the agent to the new tree.
+
+- Started porting the agent to the 6.8.99.16 X.org tree.
+
+- Lot of compilation fixes aimed at building in the new environment.
+
+- Files imported from the X.org tree's dix and mi will have to be
+  recreated in the nxagent/X directory. The new files will be inclu-
+  ded and built from the nxagent/X director if the NXAGENT_UPGRADE
+  symbol is defined (as it is the case when building in the 2.0.0
+  nx-X11 tree), otherwise the usual NX* files in the nxagent's dir-
+  ectory will be compiled.
+
+- Fixed TR09C01021. SIGHUP it was not received from the proxy. The
+  handler of SIGHUP must be installed also in the case of not persi-
+  stent sessions.
+
+- In non persistent case: if session is normally running, SIGHUP sig-
+  nal is dealt like SIGTERM, otherwise it is passed to the proxy.
+
+- Fixed TR09C01027. Changed function nxagentHandleConfigureNotify()
+  in order to get changes of the staking order in a rootless session
+  even if no window manager is running.
+
+- Fixed TR09C01025. The problem was XView application could be unable
+  to respond to user's input. Modified the Event Mask for non top le-
+  vel windows reparented by the root window. Set the input member of
+  XWMHints to communicate the window manager the keyboard focus model
+  used by the application.
+
+- Fixed TR09C01026. Added 'fast' and 'slow' to the set of accepted
+  command line parameters. 'fast', 'slow' and 'geometry' command line
+  parameters have precedence regarding the options file.
+
+- Fixed TR08C00968. There was a problem in the implementation of the
+  render extension.
+
+- Fixed TR09C01016. In rootless mode when the session was resumed,
+  the cursor was shown with a wrong shape.
+
+- Fixed TR09C01011. Allowed clients to monitor the root window for
+  structure redirect, button press and resize redirect events in root-
+  less mode. This is a quick hack to make the java bean shell work
+  flawlessy with the agent.
+
+- Solved TR08C00961. Improved the algorithm updating the sprite win-
+  dow. Now it is updated based upon crossing and motion event. Since
+  on some X server, like Windows and MacOsX X servers, the only cros-
+  sing event is not a reliable method to trace the sprite window chan-
+  ges.
+
+- Fixed TR08C00966. Solved the problem on Windows when a rootless
+  session is suspended and some of the application windows are
+  minimized.
+
+- Fixed TR08C00960. Updated the internal screen dimension in rootless
+  sessions at reconnection.
+
+- Fixed TR09C01005. The problem was that the 'render' option on the
+  command line was overridden by the one provided in the options file.
+
+- Implemented the HandleEmptySplitEvent function that synchronizes all
+  the drawables after the depletion of the split store, when the lazy
+  option is activated.
+
+- Some changes in order to avoid duplicated refreshes when display-
+  ing Mandrake's kde menu.
+
+- Changed level of some logs from WARNING into TEST in Window.c and
+  in Rootless.c.
+
+- Fixed TR08C00958. Changed the log message printed when the user re-
+  quest to resume the session.
+
+nxagent-1.6.0-6
+
+- When reconnecting, try to estimate the shift on the main window due
+  to WM reparenting.
+
+- In the handling of configure events, if a WM is running save the po-
+  sition of the main window only if event is synthetic.
+
+nxagent-1.6.0-5
+
+- Command line option -noshmem disables shared memory extension in the
+  agent.
+
+- Changed level of some logs from WARNING into TEST.
+
+nxagent-1.6.0-4
+
+- Some changes in order to improve handling of expose events in root-
+  less. The GetInputFocus request is not sent after reconfiguring a
+  top level window: window manager intervention could give race condi-
+  tions. The request is placed in WindowsRestructured() in order to be
+  sure it is sent after any event that could generate expose.
+
+- Zero lenght change property are now imported in rootless mode.
+
+- Corrected few typos.
+
+- Replaced the function usleep with NXTransContinue when NX transport
+  is running.
+
+- Changed the session state to GOING_DOWN as soon as the reconnection
+  is failed.
+
+nxagent-1.6.0-3
+
+- Updated rootless toplevel window map when a window is reparented to
+  the root window.
+
+- Renoved duplicated entry in rootless toplevel window map.
+
+nxagent-1.6.0-2
+
+- Removed TEST and DEBUG in Color.c.
+
+- Removed a compilation error in Atoms.c if DEBUG is enabled.
+
+- Removed invalid read at server reset in rootless mode, now the a-
+  toms description are duplicate before that we cache them.
+
+- Now the local atom in the atom cache are reset when exiting from
+  the dispatch loop.
+
+nxagent-1.6.0-1
+
+- Opened the 1.6.0 branch based on nxagent-1.5.0-87.
+
+nxagent-1.5.0-87
+
+- Corrected the enable-disable lazy encoding dialog in order to show
+  the correct keystroke Ctrl-Alt-E.
+
+nxagent-1.5.0-86
+
+- Reset agent position at reconnection when the new size of display
+  doesn't match the old size and fullscreen is on.
+
+- Inserted a comment about handling of expose events.
+
+nxagent-1.5.0-85
+
+- If fullscreen and resize options are true when reconnecting, geo-
+  metry option is ignored and the root window is resized to the en-
+  tire screen.
+
+- Read the position of the main window at startup from geometry op-
+  tions.
+
+nxagent-1.5.0-84
+
+- Changed the keystroke Ctrl-Alt-L to toggle the image encoding on
+  and off to the new combination Ctrl-Alt-E.
+
+- Enabled the keystroke Ctrl-Alt-M to minimize the root window also
+  in window mode.
+
+nxagent-1.5.0-83
+
+- Replaced the call to XIfEvent() with something less efficient but
+  safer, based on XCheckIfEvent(). The previous version might never
+  return if an I/O Error was encountered waiting for the event. The
+  new version fails gracefully, and returns after having restarted
+  the client.
+
+nxagent-1.5.0-82
+
+- Removed some debug logs.
+
+nxagent-1.5.0-81
+
+- Forced window mode if X server geometry has changed at reconnection.
+
+nxagent-1.5.0-80
+
+- Reset resize desktop at startup flag before reconnection.
+
+nxagent-1.5.0-79
+
+- Removed race condition in the parsing order of the options parame-
+  ter, now the geometry parameters are set in screen initialization.
+
+nxagent-1.5.0-78
+
+- Disabled auto-resize and viewport mode dialog in case of rootless
+  session.
+
+- Removed no more used -backingstore option from usage messages.
+
+- Modified -bs command line option: now the default value "when_re-
+  quested" is always set.
+
+- Fixed wrong size of root window when switching from full screen to
+  window mode and viewport navigation mode is enabled.
+
+- Added option that solved a minimize bug in LeaveNotify when the
+  root window is in full screen and the user is using viewport navi-
+  gation mode.
+
+- Forwarded HUP signal to NX transport, when session state is up and
+  running.
+
+nxagent-1.5.0-77
+
+- Do PutImage in every case. Don't check if the drawable is synchro-
+  nized.
+
+- Do CopyArea, CopyPlane, Composite in every case, don't check whether
+  the source is dirty.
+
+nxagent-1.5.0-76
+
+- Terminate rootless session 15 seconds after the last mapped window
+  has been destroyed.
+
+nxagent-1.5.0-75
+
+- Ctrl-Alt-T shows suspend/terminate dialog also in rootless mode.
+
+- Sleeps 50 ms in the block handler if the session state is down.
+
+- In rootless mode, the focus window is changed following FocusIn
+  events received from the real X server, also in the case no win-
+  dow manager has been detected.
+
+nxagent-1.5.0-74
+
+- Changed the alerts names to comply with nxcomp-1.5.0-57.
+
+- Moved loading of placeholder from startup to the first time it is
+  needed.
+
+- Corrected a typo in the CHANGELOG.
+
+nxagent-1.5.0-73
+
+- Ignored put image on not synchronized drawables, when the image
+  doesn't cover the entire surface.
+
+- Added parsing of render parameter in option file.
+
+- Ignored I/O Error when session is suspended.
+
+- Managed I/O Error at reconnection.
+
+nxagent-1.5.0-72
+
+- Fixed offset of the default window at reconnection and after switch-
+  ing from fullscreen in window mode.
+
+- Suppressed the -lazy command line option.
+
+- Made some slightly changes in GCOps.c and Pixmap.c in order to com-
+  ply with the new 'Lazy' option.
+
+- Avoided to do CopyArea, CopyPlane and Composite operations when the
+  source drawable is dirty.
+
+- Rootless disconnect dialog has changed. This dialog is launched
+  after some time the last window has been closed.
+
+- Ignored geometry changes at reconnection if resize at startup is
+  not set.
+
+- Removed reset of the offset of the root window in viewport mode at
+  reconnection.
+
+- Fixed some refreshes problems in viewport mode and in desktop resize
+  mode.
+
+- Fixed a memory leak in nxagentWindowExposures().
+
+- Added predicate to nxagentDispatchEvents.
+
+- Implemented framework in order to wait for a free resource entry,
+  when calling the asynchronous Collect* functions.
+
+nxagent-1.5.0-71
+
+- Added keystroke Ctrl+Alt+L switching lazy encoding option.
+
+- Disabled viewport movement in resize mode.
+
+- Changed agent geometry at screen resize.
+
+- Changed agent geometry at initialization.
+
+nxagent-1.5.0-70
+
+- Restored the set of blocked signal after the dialog pid just laun-
+  ched has been stored.
+
+- Removed an already fixed FIXME.
+
+- Updated the copyright message.
+
+nxagent-1.5.0-69
+
+- Started working at the integration of the lazy encoding functiona-
+  lity. Made the agent draw the placeholder if the image is split and
+  never suspend the client. There is no provision for synchronizing
+  the drawables yet.
+
+- Made the lazy encoding configurable by the new 'Lazy' option.
+
+- Updated to include the changes in the NXStartSplit() and NXCommit-
+  Split() requests.
+
+- This version requires nxcomp-1.5.0-55 and nxcompext-1.5.0-16.
+
+nxagent-1.5.0-68
+
+- Fixed reconnection of iconified windows.
+
+- Ignored the X server's scratch pixmap at reconnection.
+
+- The desktop gets automatically resized at reconnection if the desk-
+  top resize option is enabled.
+
+- Added the resize option in nxagentProcessOptionsFile() to allow the
+  user to change the geometry of both the root and the default window
+  at reconnection.
+
+- Fixed max size of the default window at startup when auto-resize
+  mode is enabled or in the case of a reconnected session.
+
+- Made some minimal changes in Atoms.c and NXdispatch.c.
+
+nxagent-1.5.0-67
+
+- Changed handling of expose events received from real X server. A re-
+  gion is composed from expose events by checking the count field.
+
+- Reimplemented the exposures managing. Now the GetInputFocus request
+  is sent after a window has been configured or unmapped. We use a
+  vector to store windows originating expose events while waiting for
+  the reply to GetInputFocus.
+
+nxagent-1.5.0-66
+
+- Added the DisplayLatency value in the agent options. This is int-
+  ended to give a hint about the latency of the current display
+  connection. The value is currently used to determine if the agent
+  is running across a slow link, and so it's appropriate to display
+  the begin-reconnection alert.
+
+nxagent-1.5.0-65
+
+- Added the DesktopResize option. It controls the behaviour of the
+  automatic (RandR) resize of the desktop when dragging the agent's
+  window border.
+
+- Automatic resize is again the default.
+
+- Disabled the test logs in Events.c, GCOps.c Pixmap.c, Handlers.c,
+  Reconnect.c.
+
+- More cosmetic changes and code cleanup.
+
+nxagent-1.5.0-64
+
+- Rewritten the image streaming procedure to better leverage the new
+  infrastructure. The start-split/end-split procedure is always init-
+  iated by the agent, including when the size of the image is below
+  the threshold, but the client is only suspended when the split has
+  taken place in the NX transport.
+
+nxagent-1.5.0-63
+
+- Updated image streaming to use the new NX notification events.
+
+- Removed the references to the NXSync() operation, not used anymore
+  by the agent.
+
+nxagent-1.5.0-62
+
+- Fixed wrong position of the root window in case of viewport naviga-
+  tion mode.
+
+- Added a field to the client private to trace the client type.
+
+- Tracked which clients are nxclient dialogs in order to not run the
+  pulldown dialog on them.
+
+nxagent-1.5.0-61
+
+- Disabled server reset if not needed by XDMCP.
+
+- Disabled persistence for indirect XDMCP session until the first gre-
+  eter with the list of host has disappeared.
+
+- Created a small data structure to contain information about integri-
+  ty status and placeholder status of a drawable.
+
+- Modified the call to nxagentRealizeOnePixmap function in order to
+  avoid errors during the signal handling.
+
+nxagent-1.5.0-60
+
+- Added the XDMCP option. If both Rootless and XDMCP are selected the
+  session will fail.
+
+nxagent-1.5.0-59
+
+- Limited the permission to reset the agent only to indirect XDMCP
+  sessions, only one reset is allowed.
+
+- Fixed max size of the default window when switching from fullscreen
+  to window mode and auto-resize is disabled.
+
+nxagent-1.5.0-58
+
+- Enabled reset mechanism, in order to make XDMCP session work proper-
+  ly.
+
+- Added XSync for window manager detection, after a server reset since
+  the XInternAtom already used should be cached.
+
+- Now the pixmap status is always tested on real pixmap.
+
+- The placeholder is drawn only once per drawable.
+
+- Implemented nxagentUnmapWindows() in case of failed reconnection if
+  the session was running in fullscreen mode and NX transport is not
+  enabled.
+
+- In nxagentPutSplitImage(), passing leftPad to XCreateImage().
+
+- This version avoids sending the XSync() to the remote when a large
+  amounts of GetInputFocus requests are issued by the same client.
+  It will require more testing, especially to verify how it works on
+  old Windows machines.
+
+- Changed the NXCommitSplit() call to comply with the new interface.
+
+- The drawable status is now propagated on graphic operations where
+  the source is using the tile and stipple components on the graphic
+  context and the tile or stipple are not synchronized. This affects
+  the following operations:
+
+  - PolyLines
+  - PolySegment
+  - PolyRectangle
+  - PolyArc
+  - FillPolygon
+  - PolyFillRect
+  - PolyFillArc
+  - PolyText8
+  - PolyText16
+
+nxagent-1.5.0-57
+
+- Removed two XSync() operations at screen initialization.
+
+- Modified keyboard initialization in order to load the correct rules.
+  This is choosen according to the vendor string of X-Window system in-
+  stalled on the local machine.
+
+- Corrected a few typos.
+
+- When the NX transport is present, the failed reconnection dialog is
+  launched on the remote X server by using the NXTransAlert() function.
+  The same dialog is managed by NXTransDialog() when a session is run
+  by connecting directly to the display.
+
+- Removed the function nxagentUnmapAllWindows().
+
+nxagent-1.5.0-56
+
+- Set the parent window for the pulldown dialog.
+
+nxagent-1.5.0-55
+
+- Added an alert at the time the reconnection procedure begins. The
+  alert is shown only when the NX transport is present and the link
+  type is not LAN and is removed at the end of the resume operation.
+
+- Removed the former code used for testing the alert functionality.
+
+- Moved the function removing the splash window in Splash.c.
+
+nxagent-1.5.0-54
+
+- Fixed initialization of window privates storing exposed regions.
+  This solves a bug affecting the refresh of windows introduced in
+  nxagent-1.5.0-42.
+
+- Added a STARTING state to nxagent. Until the agent is in this state
+  the suspension mechanism is not activated.
+
+nxagent-1.5.0-53
+
+- Added the special keystroke Ctrl+Alt+R to enable or disable the
+  auto-resize mode.
+
+- A dialog notifies the user when the auto-resize mode is toggled.
+
+- Added a test alert at startup, to verify that NXTransAlert() is
+  working as expected.
+
+nxagent-1.5.0-52
+
+- Changed the code to call NXTransDialog() and NXTransExit().
+
+nxagent-1.5.0-51
+
+- Solved a bug that prevented the clients that had been restarted
+  to be immediately selected for input.
+
+- Removed some code that was added for debugging.
+
+nxagent-1.5.0-50
+
+- Fixed a memory leak in nxagentHandleExposeEvent().
+
+- Fixed a memory leak in nxagentDestroyWindow().
+
+- Now rootless dialog is launched only when last mapped window is
+  deleted, since we have pulldown window to control the session.
+
+- Added pulldown dialog to handle NX windows in rootless sessions.
+  This dialog is activated from a "magic" slice of window under the
+  top border.
+
+- Solved a problem with sessions that might fail at reconnection.
+
+- Now the message text of the dialog launched in case of failed re-
+  connection explains the reason why the agent cannot be resumed.
+
+- Implemented function nxagentUnmapAllWindows() to unmap all windows
+  if nxagent has failed to migrate the session to the new display.
+
+nxagent-1.5.0-49
+
+- Fixed the problems with propagation of the drawable status.
+
+- Modified nxagentPutSplitImage in order to set the correct height
+  of the last split image.
+
+- Code cleaning and optimization in Dialog.c.
+
+- Solved bug that switched on the full screen state in rootless se-
+  ssion.
+
+- Changed the way dialog caption are set in rootless mode. It is set
+  upon the session name or session id value.
+
+- Corrected the function nxagentFailedReconnectinDialog().
+
+nxagent-1.5.0-48
+
+- Solved bug that switched on the full screen state in rootless se-
+  ssion.
+
+- Changed the way dialog caption are set in rootless mode. It is set
+  upon the session name or session id value.
+
+- Corrected the function nxagentFailedReconnectinDialog().
+
+nxagent-1.5.0-47
+
+- Now we call NXContinueOnDisplayError() with value 1 just after
+  having opened the display. This will cause the NX Xlib to return
+  in the case of an I/O error, instead of quitting the application.
+
+- Removed the references to Context.h and the related elements.
+
+- Reflected the changes occurred in NXlib.c regarding NXDisplayErr-
+  ror() and inverted the logic compared to NXDisplayIsValid().
+
+- Added a dialog box to notify the user when nxagent has failed to
+  migrate the session to the new display. Because the main X agent
+  connection is unavailable, this dialog uses the auxiliary nxcomp
+  keyboard channel.
+
+- Disabled the special keystroke Ctrl+Alt+S if any dialog is already
+  running.
+
+- Started implementing lazy synchronization of pixmaps. At the pre-
+  sent moment the implementation doesn't try to perform any optimi-
+  zation on the windows' regions that have to be redrawn and neither
+  it checks the congestion state. After having synchronized a reaso-
+  nable number of pixmaps, it simply sends to all the affected win-
+  dows an expose event, mandating the repaint of the whole area.
+
+- Removed a warning in Atoms.c.
+
+nxagent-1.5.0-46
+
+- Removed the longjmp() at the time an I/O error was encountered on
+  the display.
+
+nxagent-1.5.0-45
+
+- Removed UNDEFINED status for drawables.
+
+- Now lazy encoding affects only windows.
+
+- Changed the block handler to call NXTransFlush() with 'if needed'.
+
+nxagent-1.5.0-44
+
+- After reconnection, stored exposed regions are reset and the manag-
+  ing of duplicate expose events is restarted.
+
+- Detection of window manager has been moved to the start of screen
+  initialization. Screen dimensions and fullscreen option are over-
+  ridden if no window manager is detected.
+
+- Added a call to XSync() in switching fullscreen function in order
+  to synchronize it with the network behaviour.
+
+- Started adding provision for deferred writes in the NX transport.
+  When the flush policy will be set accordingly, X data accumulated
+  by the proxy will be written to the network under the control of
+  the block and wakeup handlers.
+
+- Fixed a bug in nxagentCopyArea(). In some cases, pixmap drawables
+  was erroneusly supposed to be windows. This produced invalid reads
+  when trying to access to fields of WindowRec structure.
+
+nxagent-1.5.0-43
+
+- In the code managing the property notify events, NXCollectProperty
+  is not called if the window is not found in the tree mantained by
+  the agent.
+
+- Changed managing of screen resize in order to avoid repeated resize
+  of desktop. The agent sleeps one second, then all configure event
+  are read from the queue and the server connection. The desktop re-
+  size is performed after the last read configure event.
+
+- Changed nxagentImportProperty() in order to use NXCollectProperty
+  instead of XGetWindowProperty. This avoids many round-trips in root-
+  less mode.
+
+- Fixed Invalid write problem in nxagentRRSetScreenConfig().
+
+nxagent-1.5.0-42
+
+- Modyfied test of NXSetUnpackGeometry for visuals, so now the compa-
+  rison between visuals is based on their IDs and not on the memory
+  area allocated for their visual structure.
+
+- Modified exposure managing in order to avoid duplicated refreshes.
+  Now only exposed regions not formerly managed yet are sent to the
+  clients.
+
+nxagent-1.5.0-41
+
+- Modified nxagentCloseScreen() in order to free the frame buffer.
+
+- Added information of the integrity of the windows. Now the integrity
+  has became a drawable property that will expand in every drawable to
+  drawable operation.
+
+nxagent-1.5.0-40
+
+- Splitting of images now happens only if the display is a valid con-
+  nection.
+
+- The isItTimeToYield flag is now set in the dispatcher only when the
+  client has been actually suspended because of a karma, a sync, or
+  a split operation.
+
+nxagent-1.5.0-39
+
+- Improved the handling of the PutImage request to offer provision
+  for splitting images coming from orders generated by extensions.
+
+- Fixed a problem with clients being unexpectedly restarted instead
+  of waiting for the end of split.
+
+nxagent-1.5.0-38
+
+- Added a persistent dialog when agent is running in rootless mode.
+
+- Modified the policy of management of nxclient dialogs.
+
+- Fixed memory leak problem in nxagentPutSplitImage().
+
+- Modified printing of some debug messages to avoid passing a null
+  pointer to fprintf().
+
+nxagent-1.5.0-37
+
+- Implemented initial support for streaming the packed images in the
+  handling of the MIT-SHM extension.
+
+nxagent-1.5.0-36
+
+- Updated the pixmap status when a placeholder is copied on the pix-
+  map and when the pixmap is the target of a RENDER composite opera-
+  tion.
+
+- Solved the TR05C00900. The NX transport was forced to be set when-
+  ever the display name contained the nx prefix.
+
+- Implemented the FRSA052393. Removed the compression filters applied
+  by nxagent to cursor pixmaps.
+
+- Modified RANDR implementation to make the user able to resize the
+  desktop by simply dragging the agent window's border. Screen resize
+  is made after a small timeout, to give time to the last configure
+  event to come from the server and avoid multiple re-configurations
+  of the screen.
+
+nxagent-1.5.0-35
+
+- Added the current screen size to the set of sizes returned by the
+  RANDR extension.
+
+nxagent-1.5.0-34
+
+- Corrected the placeholder xpm image.
+
+- Added a client dialog to notify the user that nxagent is running in
+  fast or in slow mode after pressing Ctrl + Alt + S.
+
+- Modified RANDR implementation to give a set of screen sizes. Im-
+  plemented functions actually performing screen resize on a RANDR
+  request. Now toggling to fullscreen make the desktop cover the en-
+  tire screen area.
+
+nxagent-1.5.0-33
+
+- Added an auto-disconnect feature similar to the one present in the
+  Windows Terminal Server. The feature is modeled on the built-in X
+  server's screen-saver. If the agent doesn't receive any input from
+  the user in a given timeout, it will either terminate the session,
+  if no client is connected to the display, or will suspend it, so
+  that applications will be left running.
+
+- The default is to disable the auto-disconnect option. The feature
+  is activated by specifying a "-timeout s" parameter on the command
+  line, with s being the timeout in seconds. The minimum allowed ti-
+  meout is 60 seconds.
+
+- The waitpid() call now only checks the agent's own children.
+
+- Moved the longjmp() context declaration to a new Context.h file to
+  avoid clash with redefinitions by the PNG headers.
+
+- Few other cosmetic changes.
+
+nxagent-1.5.0-32
+
+- Added a check on the type of the connection to avoid cleaning the
+  images when not needed.
+
+nxagent-1.5.0-31
+
+- Modified the placeholder frames, now it has a left top black border
+  and a bottom right grey one.
+
+- Modified fbShmPutImage() in order to set the correct size for the
+  temporary pixmap.
+
+- Modified nxagentForceExposure() and nxagentHandleExposeEvent() in
+  order to clip exposed regions to the window size region of the root
+  window.
+
+- Added a new placeholder xpm image.
+
+- Corrected few typos.
+
+- Added function to synchronize GC tiles and stipples whenever those
+  pixmaps have been realized.
+
+nxagent-1.5.0-30
+
+- Hidden viewport windows to clients in QueryTree request in order
+  to make work XDMCP properly.
+
+nxagent-1.5.0-29
+
+- Removed some warnings with gcc 3.4.
+
+- Added desktop -D switch to usage.
+
+- Paint window background draw on framebuffer only with OpenOffice
+  client.
+
+- Now fast copy are and fast getimage are no more set according to
+  the link type, their default value has been set to true.
+
+nxagent-1.5.0-28
+
+- Modified nxagentUpdateViewportFrame() in order to solve a refresh
+  problem. Windows composing the external frame must be always on top
+  to be sure that agent sends expose events for every window.
+
+- In rootless mode agent doesn't export anymore the properties when
+  disconnected from the X server.
+
+- Changed the way agent check if the connection with the X server
+  is available. Instead of using a state machine it uses the display
+  flag.
+
+- Removed the SIGTERM handling function in persistent code. We don't
+  need anymore those function since agent is no more sleeping when
+  disconnected.
+
+- Implemented nxagentFreePropertyList() function in order to empty the
+  list of exported properties when the rootless agent is disconnected.
+
+- Added special keystroke Ctrl + Alt + S toggling between fast and
+  slow mode for GetImage and CopyArea.
+
+- Added missing handling of down arrow key in Keystroke.c.
+
+- Modified nxagentForceExposure() in order to intersect exposed re-
+  gions with the clip region of the root window. This prevents window
+  functions from painting outside the frame buffer.
+
+- Added the field usesFrameBuffer in struct nxagentPrivClient. Modifi-
+  ed GC funtion and DoGetImage() in order to write in the frame buffer
+  only if usesFrameBuffer is True.
+
+- Removed code performing PutImage in the frame buffer, as it is use-
+  less at the moment.
+
+- Modified ProcChangeProperty() to check WM_NAME property.
+
+- Added a piece of code in nxagentOpenScreen() checking for and remo-
+  ving duplicated visuals.
+
+- Added the Dialog.c Dialog.h files. Unified all calls to NXDialog,
+  and blocked SIGCHLD before calling in order not to get the signal
+  before the child pid has been stored.
+
+- Modified the algorithm that disconnect the running session in
+  order to avoid the opening of a new dialog box for closing or
+  suspending the nxagent.
+
+nxagent-1.5.0-27
+
+- Changed the disconnect/reconnect procedure in order to have a pro-
+  per default colormap vector when session is suspended, solving a
+  segmentation fault in create window function.
+
+- Corrected few errors in slow copy area mechanism.
+
+- Modified screen initialization in order to allocate memory for the
+  internal frame buffer.
+
+- Modified some GC functions for writing to and reading from the frame
+  buffer.
+
+- Modified nxagentCreateWindow() for initializing the window in the
+  frame buffer.
+
+- Modified nxagentCreateColormap() in order to use the default visual
+  if a matching one is not found.
+
+- Modified function DoGetImage() in order to call nxagentGetImage() in
+  place of nxagentGetDefaultImage() if fast option is on.
+
+- Added nxagentCheckWindowIntegrity() function verifying the matching
+  between the internal frame buffer and the X server for a window.
+
+nxagent-1.5.0-26
+
+- Added the property "_KDE_NET_WM_SYSTEM_TRAY_WINDOW_FOR" to the list
+  of exported property in rootless mode, in order to let clients use
+  the system tray.
+
+- Modified import of WM_STATE properties in rootless mode in order
+  to better handle null resources.
+
+- Enhanced the slow CopyArea mechanism in case of one part of the
+  image is out of the X server screen or out of nxagent screen.
+
+- Changed type for variables width and height of default window
+  from 'unsigned int' to 'int'.
+
+nxagent-1.5.0-25
+
+- Added a new signal handler for SIGCHLD. The transport is set to
+  forward the signal (by means of a new NX_SIGNAL_FORWARD action).
+  This allows the agent to wait for its own children.
+
+nxagent-1.5.0-24
+
+- Set up the RANDR extension. When querying the configuration, the
+  clients get 3 sizes, the first being the current size, the second
+  being the maximum size of the remote display, the third being the
+  minimum size (arbitrarily set to 100x100 pixels). Screen sizes in
+  millimeters are calculated based on the size reported for the real
+  display.
+
+  An example of xrandr -q output is below:
+
+   SZ:    Pixels          Physical       Refresh
+  *0    800 x 600    ( 270mm x 203mm )
+   1    100 x 100    (  33mm x  33mm )
+   2   1400 x 1050   ( 474mm x 356mm )
+  Current rotation - normal
+  Current reflection - none
+  Rotations possible - normal
+  Reflections possible - none
+
+  As you can note, reflections and rotation is not possible.
+
+- Set up the GLX extension. This provides basic support with GLX op-
+  erations being translated into core X protocol primitives.
+
+- Moved initialization of GLX and RANDR to the Extensions.c file.
+
+- Removed the references to the unused mfb library. Modified Screen.c
+  to allocate the right privates for the fb code.
+
+- Modified the Xserver Imakefile to link nxagent with FbPostFbLibs
+  and avoid including mfb/libmfb.a.
+
+nxagent-1.5.0-23
+
+- Fixed an incorrect buffer length calculation when retrieving a re-
+  mote property.
+
+- Added a check to avoid the use of a NULL pointer when changing the
+  window cursor.
+
+- Implemented a function to lookup the remote pixmaps.
+
+- Changed the RENDER initialization messages.
+
+- Corrected a few typos in symbol names.
+
+nxagent-1.5.0-22
+
+- Added the nxagentNeedConnectionChange() macro.
+
+- Small optimizations in the block and wakeup handlers.
+
+nxagent-1.5.0-21
+
+- NXCollectGrabPointer() is called by passing nxagentDefaultClient().
+  This is a macro that checks the validity of requestingClient and,
+  if the pointer is NULL, defaults to NXNumberOfConnections - 1.
+
+nxagent-1.5.0-20
+
+- Replaced all calls to XGrabPointer with the asynchronous version
+  provided by nxcompext.
+
+- In DeactivatePointerGrab() function, mouse button state is set to
+  up if the window entered by the pointer is the root window and the
+  agent is in rootless mode. This change is needed because the sub-
+  sequent KeyRelease event could be not received by the agent (for
+  example if the focus had left the window), so that agent could be
+  unable to update the mouse button state.
+
+- In rootless mode, grabs exported to X in ActivatePointerGrab() are
+  always made asynchronous. The synchronous behaviour is implemented
+  by the agent, so that requiring a further synchronous grab down to
+  the real X server is of little use and potentially harmful.
+
+- Modified function XYToWindow() in order to manage the case that
+  mouse pointer is located on the title bar of a top level window in
+  rootless mode.
+
+- Reflected name changes to NXImageCache variables.
+
+nxagent-1.5.0-19
+
+- Changed the implementation of the SIGHUP handler to forward the sig-
+  nal to the proxy only when appropriate. This allows nxagent to close
+  the NX connection without having to go through an I/O error on the
+  display.
+
+- Modified nxagentBreakXConnection() to check if the NX transport is
+  running and thus use NXTransDestroy(). Using a simple shutdown() may
+  not work, for example if NX is using the memory to memory transport.
+
+- Added the -D option, to let users specify that agent must be run in
+  desktop mode. This is presently the default.
+
+nxagent-1.5.0-18
+
+- Set the PropertyChange mask on input/output window in rootless mode
+  in order to get the PropertyNotify events.
+
+nxagent-1.5.0-17
+
+- Cleaned of the reconnection routines, removed the NXAGENT_RECONNECT
+  macro.
+
+- Now the SIGHUP handler forwards the signal also to the NX transport.
+
+- Moved the NXTransDestroy() call in the closure of the display, so
+  we can avoid going through the I/O error handler.
+
+- Removed an invalid free in the function that closes the display.
+
+- Commented out more code in Display.c to avoid the segfault on exit.
+
+- In rootless mode, now function XYToWindow() starts search from the
+  last window originated an EnterNotify event. In this way, we can
+  prevent shaded windows from getting mouse events.
+
+- The variable to disable the smart scheduler is set at its definition
+  instead of setting it in the Dispatch function. This avoids the call
+  to SmartScheduleInit.
+
+- Changed implementation of cursor visualization in rootless mode. We
+  made the cursor attributes changes go transparently to the X server
+  while in desktop mode we ignore any client request to change the cu-
+  rsor on the X side, and we just set the cursor on the default window
+  any time the pointer cross a window border.
+
+- Expanded the range of properties exported on the remote Xserver,
+  this way we export properties whose atom name starts with "WM_" and
+  "_NET_".
+
+- In Rootless mode PropertyChangeMask is added to top level window in
+  order to get PropertyNotify Events.
+
+- First implementation in rootless mode of nxagentImportProperty fun-
+  ction with which after reception of PropertyNotify Events, all chan-
+  ging properties coming from external clients such as Window Manager
+  will be imported in agent windows.
+
+- Changed the GetEventMask function in order to handle the InputOnly
+  windows that need to be notified of property changes in rootless
+  mode.
+
+nxagent-1.5.0-16
+
+- Implemented the -B command line switch, to let nxagent impersonate
+  a "pure" proxy on the NX server side (that is without X connections
+  having to be managed by the nxagent's dispatcher). Such a "nxagent
+   -B" is going to replace the corresponding nxproxy process that in
+  previous version of NX server was run with the same options.
+
+- When running nxagent in 'bind' mode the X port where the the proxy
+  has to listen for connection must be specified after the -B option.
+  The other NX options must be passed in the DISPLAY environment.
+
+  Example:
+
+  nxagent -B :9
+
+- The initialization procedure will check that the display included
+  on the command line matches the one specified in the NX display
+  options.
+
+  For example, given the command:
+
+  nxagent -B :9
+
+  The NX options must be something like:
+
+  DISPLAY=nx/nx,link=modem:9
+
+  This allows users to find out which display the agent is impersona-
+  ting by running a 'ps' and inspecting the command line.
+
+- Fixed a bug preventing the proxy's ClientMessage to reach the right
+  function when activating rootless mode.
+
+- Removed unused function nomachineLogo.
+
+- Code cleaning and soem optimizations in Rootless.c.
+
+- We want to import all properties changed by external clients to our
+  internal windows. But we must ignore property notify generated by
+  our own requests. For this purpose we implement a list to record
+  every change property that we dispatch. This way when processing
+  a property notify we can distinguish between the notify generated
+  by our request and those generated by an 'outside client'.
+
+- In rootless mode, optimized window configurations mantaining inter-
+  nal stacking order.
+
+- Fixed focus troubles in rootless mode. Now focus window is set fol-
+  lowing FocusIn events.
+
+- In rootless mode, now fake KeyRelease events on FocusOut are sent
+  only if keys having down state are modifiers. This prevents from
+  sending key events to a wrong client.
+
+- Removed unused function nxagentRootlessNextSibling in Rootless.c.
+
+- Removed unused function nxagentRootlessStackingOrder in Rootless.c.
+
+- Fixed compilation error if TEST log is enabled in Events.c.
+
+- Changed Options variables to comply with NX naming rules.
+
+- Some additional cosmetic changes.
+
+nxagent-1.5.0-15
+
+- Modified functions nxagentPutImage and DoGetImage for XYPixmap fo-
+  rmat.
+
+- Completed implementation of shared memory extension.
+
+- Implemented a mechanism that prevents monitoring of SubStructure-
+  Redirect ResizeRedirect and ButtonPress events by any clients simu-
+  lating the presence of a window manager running inside the agent.
+
+- Added debug functions in order to check the status of syncroniza-
+  tion between the pixmaps residing on the X server and the local
+  framebuffer ones.
+
+- Changed the policy used when realizing all the pixmaps in 'lazy en-
+  coding' mode so that the agent now switches to 'eager' policy.
+
+- Fixed the routine handling the pixmaps realization: pixmaps with
+  an invalid id are not processed anymore.
+
+- Solved a bug in the routine taking care of clearing the NoMachine
+  logo: the state of the background was set to 'pixel' without de-
+  stroying an eventual backround pixmap.
+
+- Solved a bug in the 'MakeRootTile' function: the value returned by
+  'AddResource' was not interpreted in the correct way causing the
+  function to bail out without drawing the NoMachine logo and set-
+  ting the background state to Pixmap.
+
+- Renamed PlaceHolder.c to Lazy.c and PlaceHolder.h to Lazy.h.
+
+- Inserted a test feature that cleans the framebuffer pixmaps when
+  they are created.
+
+nxagent-1.5.0-14
+
+- Changed some reconnection messages.
+
+- Now the disconnect procedure is called also after an IO Error is
+  received.
+
+- The rootless agent now doesn't filter anymore keystrokes combina-
+  tion related to desktop feature, like viewport navigation the full-
+  screen state and minimization.
+
+- In rootless mode, internal stacking order is updated by comparing
+  the stack of top level windows mantained by the X server with the
+  one mantained by the agent. A global configuration of windows is
+  performed from top to bottom through the stack.
+
+- In rootless mode, map state of  top level windows is kept up to date
+  by managing map and unmap events.
+
+- In rootless mode, enter events are managed to keep track of top
+  level window position. It is very useful for managing differences
+  among window manager behaviours. It should be reimplemented follo-
+  wing the advice given in ICCCM 4.1.5.
+
+- In rootless mode, requests of configure top level windows are di-
+  rectly forwarded to the real X server. Internal configuration is up-
+  dated when configure events are managed by the agent. In order to
+  mantain internal stacking order up to date, a query tree request is
+  performed on the real root window.
+
+- Added viewport navigation by Ctrl + Alt + keypad arrows.
+
+- Fixed wrong internal configuration of agent top level windows, while
+  agent runs in rootless mode with metacity window manager.
+
+- Fixed segmentation fault in nxagent running in rootless mode with
+  OpenOffice.
+
+- Fixed wrong internal stacking order of drop down menus of firefox
+  with nxagent in rootless mode.
+
+nxagent-1.5.0-13
+
+- Fixed compilation problem on solaris.
+
+- Modified the modify pixmap header function. Previously this function
+  has been modified in order to solve a glyph problem, enlarging both
+  the pixmaps dimensions by four. Corrected the misbehaviour that
+  modify the pixmaps dimension even if the caller doesn't want to
+  change it.
+
+nxagent-1.5.0-12
+
+- Fixed erroneous behaviour of Root Window in fullscreen mode caused by
+  wrong value of XSpan and YSpan.
+
+- Fixed wrong clients' position at Reconnection in Rootless mode,
+  setting offset and WinGravity fields in XsizeHints structure.
+
+- Fixed segmentation fault on closing windows that stay always on top.
+
+- Moved the handling of configure notify events in the appropriate
+  functions, and cleaned it.
+
+- In rootless mode, internal stacking order of top level windows is
+  mantained up to date by monitoring events from window manager top
+  level windows.
+
+- Modify the creation of screen at reconnection for detecting an
+  eventual failure.
+
+- Removed export of window properties on the X server in desktop mode.
+
+- Changed the events mask for client's window set on the X server.
+  We don't use anymore the window mask choosen by clients. In rootless
+  mode for a top level window we use the default event mask and for a
+  child only the exposure mask.
+
+nxagent-1.5.0-11
+
+- Restored default event mask at reconnection.
+
+- Fixed abnormal behaviour in rootless mode if application windows are
+  close to the lower and right bounds of the screen. This trouble was
+  due to the wrong size of the agent root window.
+
+- Fixed abnormal behaviour in rootless mode for mouse button events if
+  the application window is not fully contained in the screen.
+
+- In rootless mode, exposed region are extended a few to take in ac-
+  count border width offsets caused by window managers.
+
+- In rootless mode, grab pointer requests from clients are forwarded
+  to X server. This makes application able to close their pop up win-
+  dows on a pointer event.
+
+- Fixed wrong position of the agent root window after resize of main
+  window.
+
+- Changed the size of viewport frame windows in order to avoid re-
+  freshing problems.
+
+nxagent-1.5.0-10
+
+- Handled the Client messages on rootless mode.
+
+- Initializations of event masks have been moved in a unique group of
+  functions.
+
+- Disabled the SmartScheduler in dispatcher as it seems to affect the
+  responsiveness of nxagent.
+
+- Modified the block and wakeup handlers. We could have left data to
+  write to our display connection when entering in WaitForSomething()
+  so we now flush everything before entering the select() and let the
+  proxy do all the buffering.
+
+- Fixed the wakeup handler to match the correct prototype.
+
+- Few cosmetic changes.
+
+- Inserted a test feature that cleans the framebuffer pixmaps when
+  they are created.
+
+- Adjusted pixmap status information in almost every gc operations.
+
+- Removed a warning for usleep not defined on Suse 9.0.
+
+- Adjusted pixmap status information in copy plane operations.
+
+- Throwed fatal error if on lazy encoding the place holder pixmap
+  couldn't be loaded.
+
+- Removed the static path to xpm file in place holder initialization.
+
+- Removed useless signal handler initialization multiple times.
+
+- Refined validation of atoms in the atom cache code.
+
+- Corrected few errors in atom cache initialization.
+
+- Added a primitive atom cache that mantain the map between internal
+  and external atoms.
+
+- Window properties export began on the X server side in rootless
+  mode, this way nxagent open the communication between local clients
+  and the window manager on the X server.
+
+nxagent-1.5.0-9
+
+- Fixed wrong position of the main window in case of maximizing in
+  window mode.
+
+- Set the correct scan line lenght for XYPixmap created in PutImage
+  and GetImage.
+
+- Removed a segmentation fault in GetDefaultImage. The problem arose
+  because the XYPixmap created with a data storage taking in account
+  of only some planes instead of all the depths planes. Despite XPut-
+  Pixel was treating the image as a complete XYPixmap of that depth.
+
+- Removed MapWindow Error at reconnection caused by wrong value of
+  IconWindow.
+
+- Now nxagent_WM_START is intialized as soon as the Atoms are
+  queried.
+
+- Removed Geometry restrictions.
+
+- Changed the configuration of the agent window in window mode.
+
+- The agent window is correctly reconnected even if is resized.
+
+nxagent-1.5.0-8
+
+- Updated copyright notices.
+
+- Removed a segmentation fault in font cache cleaning routine. The
+  problem arise when the session is disconnected and the font struct
+  are not allocated.
+
+- Used the return mask of XParseGeometry to correctly set only the
+  parameters that are involved.
+
+- Unified the initialization of all the geometry related parameters.
+
+- Updated the offset of the four viewport frames windows at recon-
+  nection.
+
+- Changed the way the geometry parameter is used. Now the first time a
+  session is started it set the internal dimension of the agent root
+  window, afterwards it only affects the dimension of the external
+  window on the X server.
+
+- Corrected splash screen offset at reconnection in fullscreen mode.
+
+- Agent can be launched in fullscreen mode and his geometry can differ
+  from the X server geometry.
+
+- Now Width and Height options are used to store geometry of the
+  default window even on fullscreen mode, and to restore the correct
+  dimension when switching back to window mode from fullscreen
+  we added two more options.
+
+- Removed an error in the move viewport procedure that didn't upgrade
+  the offset of the internal root window when the external root win-
+  dow was maximized.
+
+- Unified the initialization of all the geometry related parameters.
+
+- The window manager detection procedure is now started whenever there
+  is an attempt to minimize the fullscreen window or to pass to window
+  mode.
+
+- Function's optimization for detecting if WM is running.
+
+- Switching to window mode has been disabled when the window manager
+  is not running.
+
+nxagent-1.5.0-7
+
+- Now background pixel is not reset at reconnection.
+
+- Now geometry is parsed also as a command line parameter.
+
+- Fixed wrong offset of the root window after a reconnection in case
+  of window mode.
+
+- Fixed wrong geometry of the nxagent window after a reconnection
+  in case of window mode.
+
+- Fixed wrong position of the main window after a reconnection in
+  case of fullscreen mode.
+
+- Fixed refreshing windows problems in viewport navigation. Four in-
+  visible windows are created around the agent window to automatica-
+  lly generate exposure when the viewport frame is moved or a windows
+  come out from the non visibile part of the agent window.
+
+- We need to store the GC records in a list that will be freed in case
+  the reconnection succed and will be restored in case of failure. We
+  have to do this because we cannot destroy the GC records in the
+  disconnect or reconnect procedure, because this way we couldn't
+  recover from a disconnection or a reconnection failure.
+
+- Rewritten the reconnection procedure. Since we cannot be sure
+  that the reconnection will succed we cannot destroy the display
+  structure, so we postpone the closing of the previous display
+  with the creation of the new connection.
+
+nxagent-1.5.0-6
+
+- Adjusted usage list in order to show the R parameter for rootless
+  mode.
+
+- Added handling of display parameter to option file.
+  Corrected few typos error, in option file parsing.
+
+nxagent-1.5.0-5
+
+- Removed error that prevented the realization of cursor in eager
+  mode.
+
+nxagent-1.5.0-4
+
+- Fixed abnormal behaviour of termination dialog, after the keystroke
+  Ctrl + Alt + T.
+
+- Fixed segmentation fault in function parsing option file.
+
+- Fixed various errors on eager encodings.
+
+- Added lazy command line switch in order to switch lazy encoding
+  on.
+
+- Code cleaning.
+
+- Implemented a signal to switch between two pixmap
+  realization policies.
+
+- Corrected an error while defining pixmaps status.
+
+- Implemented a debug feature, consisting in a method that pushes
+  the synchronized realization of all the pixmaps.
+
+- Began implementation of place holders in replacing of images while
+  they are being loaded.
+
+- Performed some changes on spreading of pixmaps status information
+  on copy area.
+
+- Began implementation of lazy encoding.
+
+- Changed version to 1.5.0.
+
+nxagent-1.5.0-3
+
+- Removed the option -nogetimage (FRSA052305).
+
+- Code cleaning in Font.c.
+
+- Removed NXAGENT_FONTMATCH macro.
+
+- Removed NXAGENT_FONTCACHE macro.
+
+- Handled the ReparentNotify event we get when in rootless mode
+  ours window are reparented from the window manager. Inserted
+  fake windows to take account of this new parents.
+
+- Removed the redirection of client message in rootless mode, and
+  the configuration of the WM_PROTOCOLS properties on all the top
+  level windows.
+
+- Removed parent ID from the windows private structure.
+
+- Implemented screen operation ReparentWindow.
+
+- Redirect all client message of type WM_PROTOCOLS and value WM_DELETE-
+  _WINDOW to internal clients in rootless mode.
+
+- Set the WM_PROTOCOLS property on all the top level window.
+
+nxagent-1.5.0-2
+
+- Changed viewport navigation, in order to make it works in fullscreen
+  mode.
+
+- Changed special keystrokes used for closing session and minimizing
+  fullscreen window.
+
+- Removed the message 'NX was unable to negotiate a cache
+  for this session' (FRSA052296).
+
+- Fixed a minor bug. It made metacity produced a warning when the agent
+  started up.
+
+- Code cleaning.
+
+- Implemented dynamic handling of the main window's size in the X11
+  agent (FRSA052264).
+
+- Implemented dynamic navigation of the main window's viewport in the
+  X11 agent (FRSA052265). Users can navigate the viewport while keys
+  Ctrl + Alt are pressed, either by arrows keys or dragging it by the
+  pointer.
+
+- Implemented dynamic handling of the full-screen attribute in the
+  X11 agent.
+
+- First implementation of dynamic handling of the full-screen
+  attribute (FRSA052263).
+
+- Now the X connection descriptor is not closed when disconnected,
+  because the transport layer still has reference to it. So we want
+  it busy till we don't close the display, so we shutdown it instead
+  of closing it.
+
+- Removed replys when disconnected.
+
+- Added the X connection number to the set of enabled input devices, at
+  reconnection.
+
+- Rewritten the disconnect/reconnect layout.
+
+- Now in the suspend status nxagent doesn't sleep.
+
+- Implementing toggle fullscreen special keys.
+
+nxagent-1.5.0-1
+
+- Opened the 1.5.0 branch.
+
+nxagent-1.4.1-7
+
+- Imported changes from nxagent-1.4.0-64 version.
+
+nxagent-1.4.1-6
+
+- Implemented a GC cache for reconnecting pixmap.
+
+nxagent-1.4.1-5
+
+- Handled the situation of disconnect when the pointer has been grabbed.
+  We disconnect and reconnect the "grabbing" cursor and after reconnection
+  we fake a button release in order to let client know that the pointer
+  button has in effect been released.
+
+- Code cleanup.
+
+nxagent-1.4.1-4
+
+- Imported changes from nxagent-1.4.0-63 version.
+
+nxagent-1.4.1-3
+
+- Imported changes from nxagent-1.4.0-62 version.
+
+nxagent-1.4.1-2
+
+- Cleaned code in the GC reconnection area.
+  Scratchs GC are now reconnected before of the pixmaps.
+
+nxagent-1.4.1-1
+
+- Opened the 1.4.1 branch.
+
+nxagent-1.4.0-65
+
+- Cosmetic changes to the diagnostic output.
+
+nxagent-1.4.0-64
+
+- Changed the RENDER version advertised to X clients to be the lowest
+  value between the version of RENDER of nxagent and of the remote X
+  server.
+
+- Disabled fast copy area and fast get image flags, if RENDER extension
+  is not available.
+
+- At the screen initialization, if we don't have window manager we
+  grab keyboard to let nxagent get keyboard events.
+
+- Completely rewritted the handling of KeyPress events, now we moved
+  all the test for 'special' keybindings in file keystroke.c. Added the
+  combination MOD1/2-CTRL-SHIFT-<TAB> for terminate/suspend the session,
+  we used the combination MOD1/2 in order to let it work even on MacOS
+  where Alt(MOD1) doesn't seem to be set.
+
+- Ignored visibility notify events on the icon windows, that were
+  messing up the agent visibility state.
+
+- Changed nxagent reaction on VisibilityNotify event. It fixed the
+  problem with refresh session under Mac OS X with NXDarwin.
+
+nxagent-1.4.0-63
+
+- Reset the congestion state at transport initialization.
+
+nxagent-1.4.0-62
+
+- Fixed the disconnection and reconnection of window that have attached
+  an animated cursor.
+
+nxagent-1.4.0-61
+
+- Removed the XInputExtension initialization in order to use the more
+  general mi extension initialization enabled on new mi version.
+
+- Removed some useless test and logging info on copy area function.
+
+nxagent-1.4.0-60
+
+- Changed the implementation of CopyArea and CopyPlane.
+  If both drawables are on framebuffer we send NoExpose to clients,
+  otherwise we use the mi function HandleExposure to calculate the
+  region to be exposed instead of let mi redo all the copy operation.
+
+nxagent-1.4.0-59
+
+- Disabled use of caching and cleaning of images, if NX transport is
+  not used.
+
+nxagent-1.4.0-58
+
+- Added timeout on convert selection operation. If timeout has not
+  expired and is there a pending operation any new request is dropped
+  and the client notified, until timeout expiration.
+
+- Corrected a bug that prevented to correctly store last convert se-
+  lection request time.
+
+nxagent-1.4.0-57
+
+- The Xinput extension is now initialized at startup. This is of
+  little use because nxagent only needs to support the core pointer
+  and keyboard. Anyway this allows nxagent to get rid of the warn-
+  ings printed by some X clients on recent Linux versions when the
+  extension is not found.
+
+nxagent-1.4.0-56
+
+- Fixed value returned by ConvertSelection. It was the cause of
+  possible slowndowns during KDE sessions.
+
+nxagent-1.4.0-55
+
+- Agent icon now is loaded from a binary-
+  embedded Xpm image, if any attempt to
+  load the default Xpm file from the image
+  directory or from the path fails.
+  Removed code used in the old logo drawing
+  function.
+
+nxagent-1.4.0-54
+
+- Enabled code for sending to client graphics
+  exposures. Redirecting the ones coming from
+  remote X server, only if agent window is not
+  fully visible, and calculating ourselves failure
+  in CopyArea/Plane and notifying clients.
+  The only drawback is that we can have double
+  refresh effect if agent window is covered.
+
+NOTE: Partially enabled MIT-SHM extension has
+      been developed but has not been included
+      in stable release. Included in version
+      nxagent-1.4.0-53-DAR1.
+
+nxagent-1.4.0-53
+
+- Implemented a reliable technic to detect
+  if is there any window manager running on
+  the X server.
+
+nxagent-1.4.0-52
+
+- Fixed a bug that prevented to correctly
+  notify the client of a successfull convert
+  selection.
+
+nxagent-1.4.0-51
+
+- Removed a logging error in render initialization.
+
+nxagent-1.4.0-50
+
+- Now we take the ownership of the selection
+  on "NX_CUT_BUFFER_SERVER" twice, in order
+  to solve bug in communication with nxclient
+  to let him see our main window and know that
+  agent established connection with X server.
+
+nxagent-1.4.0-49
+
+- Fixed the colormask layout of the visual
+  used to put images on the real X server when
+  the drawable has an alpha channel, according
+  to the endianess of the X server.
+
+nxagent-1.4.0-48
+
+- Moved up the render compatibility limit,
+  due to the inclusion of the support for render
+  cursor missing on the 0.2 version.
+
+nxagent-1.4.0-47
+
+- Changing artsd forwarding port from display
+  + 8000 to display + 7000
+
+- Stoping key release event if key press was
+  catched before. For Alt-F2/F4 combination.
+
+- Preserved the alpha data on drawables that
+  are not used by picture but have a depth of 32.
+
+nxagent-1.4.0-46
+
+- Rewritten all the code regarding to the
+  acceleration for the Render creation of the
+  cursor, and removed the acceleration for
+  the animated cursor.
+
+nxagent-1.4.0-45
+
+- The two RENDER operations creating cursors and
+  animated cursors have been accelerated by for-
+  warding the original operation to the X server.
+
+nxagent-1.4.0-44
+
+- Fixed a problem in the clipboard procedure.
+  Now when we get a request of the selection
+  from an internal client we have to, if the
+  owner is on the X server, forward the request
+  to X, otherwise we have to pass the request
+  to our internal client.
+  But for a problem in this procedure we passed,
+  in some situation, the request to the internal
+  client even if the owner was on the other side.
+
+- Fixed a segmentation problem in the render
+  extension by removing composite trapezoid
+  operation on window.
+
+nxagent-1.4.0-43
+
+- Added some pointer sanity check in the discon-
+  nect procedure. The problem was arising because
+  we were executing the code twice when after
+  began a voluntar disconnection the X connect-
+  ion was broken for a network failure.
+
+- Changed directory where nxagent gets the icon.
+
+- Fixed missing implementation of rendering
+  trapezoids.
+
+- Fixed bug in render extension when the nxagent
+  create cursor diffrent then 32 bits format.
+
+nxagent-1.4.0-42
+
+- Solved segmentation fault, caused by a longjmp
+  on a stack context not previously saved.
+
+nxagent-1.4.0-41
+
+- Added an exposures of the window in a resize
+  operation.
+
+nxagent-1.4.0-40
+
+- Implemented a timeout on the opening of the X
+  display, if we get it we reject all well known
+  sockets.
+
+nxagent-1.4.0-39
+
+- Corrected minor error on events handling.
+
+nxagent-1.4.0-38
+
+- Removed in the resize window code some exposure
+  that generated useless traffic.
+
+- Option geometry is no more parsed in the option
+  file.
+
+nxagent-1.4.0-37
+
+- When session is suspended and we get TERM signal
+  nxagent just exit instead of just breaking out of
+  dispatch loop because we get a terminate exception.
+  Cleared display variable after having closed the
+  connection with the X server.
+
+nxagent-1.4.0-36
+
+- Refined some details in the ICC with nxclient.
+
+nxagent-1.4.0-35
+
+- Implemented a new method to comunicate to nxclient,
+  the raise of the agent root window, taking the ownership
+  of the selection "A-{MD5 of session}".
+  Used the same selection to let nxclient comunicate to agent
+  by changing the property on the same string, when the user
+  choose by the administrator to terminate or suspend the
+  session.
+
+nxagent-1.4.0-34
+
+- Key sequence to Suspend/Terminate session (Alt-F4).
+
+- Key sequence to Minimize session in fullscreen mode (Alt-F2).
+
+- Check if WM is started, for Alt-F2 sequence.
+
+- Corrected calculation geometry of exposed region
+  sent to client after reconnection.
+  This solve a serious memory leak of nxagent.
+
+- Fixed a bug in validate GC code that passed
+  a wrong pointer of tile to framebuffer.
+
+nxagent-1.4.0-33
+
+- Changed the reconnection state machine in order
+  to let agent exit if has got the TERM signal.
+
+nxagent-1.4.0-32
+
+- Fixed memory leak in option parser that wasted
+  memory if more than one occurence of 'option'
+  argument would have been parsed.
+
+- Removed a invalid read in Keyboard initialization.
+  Now kbtype option value is copyed instead that
+  referenced.
+
+- The X connection number is recorded only after
+  having cheched for display being successfully opened.
+
+nxagent-1.4.0-31
+
+- Fixed memory leak problem caused by region not
+  beeing destroyed previously.
+
+- Fixed a memory leak in keyboard initialization.
+
+- Fixed a bug in the function that parse the option file,
+  we were reading the options in the format NAME=VALUE and
+  were passing it to the argument parser in the format
+  {NAME, VALUE}, without the prepending '-' in front of NAME.
+
+nxagent-1.4.0-30
+
+- Readded option persistent in order to let nxagent
+  works with older nxserver that are still launching
+  nxagent with the persistent option.
+
+nxagent-1.4.0-29
+
+- Corrected the message of the client dialog
+  asking if user want to suspend or terminate the
+  session.
+
+- Chenged the default value for persistence of session
+  in nxagent to true. Change the persistent option to
+  nopersistent in order to disable it.
+
+nxagent-1.4.0-28
+
+- Added check on screen initialization of possible
+  memory allocation failure.
+
+- Changed the parsing policies of the option file.
+  Now we are just considering kbtype and geometry
+  options.
+
+- Removed testing code that forced rootless mode
+  when geometry is 100X100.
+
+- Correctly initialized and mapped the icon window
+  on fullscreen mode.
+
+nxagent-1.4.0-27
+
+- Fixed lost memory problem caused by second
+  initialization of screen privates. Screen
+  privates is already initialized by miScreenInit
+  function.
+
+nxagent-1.4.0-26
+
+- Added option command line option. This parameter
+  is used to show complete path to option file.
+
+- Added parser of the option file.
+
+- Now default value for fast copy area and fast
+  getimage is true.
+
+nxagent-1.4.0-25
+
+- Done some cleanup to the initialization of the
+  defaults drawables at reconnection, and removed
+  a memory leak in the reopening of the Display.
+
+nxagent-1.4.0-24
+
+- Changed the version number, printed at startup.
+
+- Removed a memory leak in the font reconnection stage.
+
+nxagent-1.4.0-23
+
+- Removed a bug that messed up the render status info
+  if reconnected to a display with no render support.
+  Anyway nxserver should prevent agent to trying reconn-
+  ecting to such display.
+
+nxagent-1.4.0-22
+
+- Enhanced the reconnection error reporting function.
+
+nxagent-1.4.0-21
+
+- Get the ownership of selection NX_CUT_BUFFER_SERVER at reconnection
+  in order to let client knows that agent windows has started
+  successfully.
+
+nxagent-1.4.0-20
+
+- Now we draw splash logo at reconnection. And destroy it and show
+  all other windows when reconnection has done all in once. We draw
+  it on default window instead that on root window, and we map root
+  window when reconnection has finished.
+
+nxagent-1.4.0-19
+
+- Removed the old Xconnection descriptor and added the new one
+  to the device set, instead of resetting the entire enabled
+  device set, at reconnection.
+
+nxagent-1.4.0-18
+
+- Reset the enabled devices set of descriptors, and properly
+  add to this set the the Xconnection descriptor.
+
+NOTE: This solves all the known solaris reconnection problems.
+      (The problem appear only on solaris because on this machine
+       the Xconnection descriptor is changing at reconnection.)
+
+nxagent-1.4.0-17
+
+- Restored the previously owned primary selection, at reconnection.
+  Removed the handling of the return value of XSetSelectionOwner,
+  man page doesn't specify any return value.
+
+nxagent-1.4.0-16
+
+- Added compatibility with older windows clients(Xserver)
+  that send a WM_DELETE_WINDOW client message WM_DELETE_WINDOW
+  to all top level window and so agent show more than one
+  NXDialog asking for confirmation, instead of sending just the
+  message to top level window that are visible and haven't set
+  the override redirect option.
+
+nxagent-1.4.0-15
+
+- Ignored unmatched DirectColor visuals at reconnection
+  on a different display not providing it.
+
+nxagent-1.4.0-14
+
+- Moved the render query extension in display
+  initialization from screen initialization.
+
+- Changed reconnection policy to disallow reconnect a
+  session that is using render to a server not providing it.
+
+nxagent-1.4.0-13
+
+- Unified the screen opening function.
+
+- Changed the reconnection requirements
+  policy about geometry of X server.
+  Now agent doesn't accept changes of X server
+  root window size only if in fullscreen mode.
+
+nxagent-1.4.0-12
+
+- Improved failure notification messagges in Display and
+  font code.
+
+nxagent-1.4.0-11
+
+- Now visuals are properly recreated, in order to reconnect
+  to another X server.
+
+- Updated render formats at reconnection.
+
+nxagent-1.4.0-10
+
+- Removed a serious memory leak at reconnection.
+
+nxagent-1.4.0-9
+
+- Added after window reconnection the redisplay of the current
+  cursor. Done some general cleanup at cursor reconnection code.
+
+nxagent-1.4.0-8
+
+- Unified tha atom creation at reconnect.
+
+nxagent-1.4.0-7
+
+- Dix layer when creating a GC use a default real pixmap as
+  stipple but agent need a virtual one. This can cause
+  segmentation fault to agent if is there any apps that use the
+  default GC stipple created by dix, without changing it.
+
+nxagent-1.4.0-6
+
+- Imported 1.4.0-1-DAR6 from the 1.4.0 development branch.
+
+- Handled reconnection of window's cursor still not
+  reconnected at window reconnection. (This because that cursor
+  is no more a server[nxagent] resource).
+
+- Set the last image client variable at reconnection in order
+  to use the visual cache indexed for client number.
+  Without this we could get a segmentation fault.
+
+- Handled properly the reconnection of animated cursor.
+  Modified the procedure of animated cursor creation
+  in order to empty some unused fields.
+
+- Removed a 4 bytes memory leak at reconnection.
+
+- Synced new tree with nxagent-1.3.2-23.
+
+- Finished the unify of PutImage at reconnection.
+  Added a Reconnection Trap in order to let screen functions
+  (like PutImage) knows that are working at reconnection time
+  and can behave differently.
+
+- Unified the code for the normal PutImage and the one's used at
+  reconnection. But the code that calculate the split is still
+  doubled.
+
+nxagent-1.4.0-5
+
+- Imported 1.3.2-23 from the 1.3.2 development branch, and dropped
+  the previous 1.4.0 versions.
+
+nxagent-1.3.2-23
+
+- Pixel hints are set according to the display's depth. Added the
+  defaults to be used on 16 bits.
+
+nxagent-1.3.2-22
+
+- The pixel hint on Solaris is by default 0xffffff. The value can be
+  overridden by using the -hint option followed by the hex represen-
+  tation of the color, as in -hint 0xaabbcc.
+
+nxagent-1.3.2-21
+
+- Asynchronous GetImages are now disabled. If fast GetImage mode is
+  enabled, agent will always try to guess the pixel to be used for
+  the solid pattern, based, at its best, on the geometry of the pro-
+  vided area. This behaviour can be overridden by passing the -slow
+  parameter on the command line. Slow mode is also the default when
+  selecting WAN or LAN link settings.
+
+- Code cleanup in preparation of the final release.
+
+nxagent-1.3.2-20
+
+- New code uses sigaction to set the SIGHUP handler in persistent
+  mode. Contrarily to signal(), the sigaction call doesn't seem to
+  reset the handler to SIG_DFL after the signal has been caught.
+  This problem seems to be specific of Solaris.
+
+- Client messages of type WM_PROTOCOLS are now handled even when
+  a window manager is not detected at agent startup.
+
+- Removed handling of GraphicsExposure coming fron the real server.
+  Agent will still generate events in the MI. Code dealing with the
+  remote events needs to be better tuned as it seems to cause some
+  troubles with double refreshes.
+
+nxagent-1.3.2-19
+
+- Starting from this version agent doens't use NXSync and NXKarma
+  messages to manage bandwidth arbitration among clients but makes
+  efficient use of the congestion notification messages introduced
+  in 1.3.1. A new handler has been added to manage the congestion
+  state. The handler will block, if needed, waiting for the decon-
+  gestion notification coming from proxy.
+
+nxagent-1.3.2-18
+
+- Rewritten the block handlers to check the event queue more often.
+  The new code seems to greatly enhance responsiveness, especially
+  on fast links.
+
+- Now agent will handle the expose events coming from the remote
+  display inside the event dispatcher.
+
+- Created a new function collecting the expose events. Function is
+  optimized to add all the expose events for the same window to a
+  single region. Region is passed to the mi when the last event
+  has been processed.
+
+- Still dealing with GetImage from OpenOffice. Now we try to match
+  the geometry of the incoming requests with known geometry of most
+  of its graphic elements. It seem to work on Fedora.
+
+nxagent-1.3.2-17
+
+- Added swapping of image data in nxagentGetImage() when connecting
+  to a display having a different image byte order than the agent
+  server.
+
+- Added a new nxagentImageReformat() function in GCOps.c.
+
+- Now agent will not try to pack images having a data size smaller
+  than 768 bytes. The previous threshold was set to 64. The Mandrake
+  vesion of KDE seems to send lot of such small images. Compressed
+  through JPEG, these images obtain a very poor ratio of nearly 1:1.
+
+- Added a function translating and sending the GraphicsExposures
+  events received from the remote server to the agent's clients.
+
+- Renamed the functions providing the ad-hoc handling of remote X
+  events.
+
+nxagent-1.3.2-16
+
+- Implemented a cache for the alpha channel data. With clients
+  making heavy use of the alpha blending, the new cache is able to
+  cut by nearly 30% the traffic incoming to proxy, offering compara-
+  ble savings in CPU performance. While proxy is usually able to
+  cache almost all the alpha traffic, when caching is not enabled
+  (f.e. when link setting is WAN or LAN) this data is sent uncomp-
+  ressed by the agent. Tests running common desktop environments
+  showed that alpha channel could weight up to 2 times the corres-
+  ponding data generated by the packed images.
+
+- Fixed the compilation warnings in NXrender.c.
+
+nxagent-1.3.2-15
+
+- Rewritten handling of GetImage from dispatcher down to GCOps. If
+  the fast GetImage mode is enabled agent will use the asynchronous
+  calls provided by nxcompext to get data from the real server. Data
+  collected from the last get image performed is preserved and the
+  upper left pixel is used to guess a solid background.
+
+- Added a nxagentGetBackgroundImage() function to apply a similar
+  mechanism when the nxagent window isn't fully visible. Previously
+  a solid white background was returned. The new handling seems to
+  correctly match the window background in most cases.
+
+- Fixed a problem passing the bytes per line value when creating a
+  XYPixmap image. The previously calculated value didn't take into
+  account the depth of the image.
+
+- Now image's bytes per line, length and visual are calculated by
+  using a few utility functions added to GCOps.c.
+
+- Added declaration of the nxagentVisibility related variables to
+  Window.h.
+
+nxagent-1.3.2-14
+
+- On Fedora xbcomp configuration fails when agent is run nested.
+  This causes keyboard to ignore most AltGr keys. Strangely enough
+  this behaviour has been observed only with KDE while GNOME does
+  not seem to be affected. Reason is to be investigated.
+
+- Auto-repeat mode of the agent's keyboard device is now always
+  disabled. Agent will leverage auto-repeated keystrokes genera-
+  ted on the real server even when propagating device configura-
+  tion changes.
+
+- The info output telling if agent will propagate the changes to
+  devices' setting is now printed after having initialized the
+  screen. The purpose would be to verify if agent is running in
+  fullscreen mode and there is no WM on the real display. In this
+  case we should forcibly propagate device configuration changes.
+  Unfortunately, due to the way intern atoms are collected, this
+  is not going to work on platforms where sessions are likely to
+  run on an existing X server.
+
+nxagent-1.3.2-13
+
+- Fixed a problem with XYPixmaps being used in PutImage with the
+  wrong left pad. This is a step forward in the solution of the
+  corrupted masks displayed by Mozilla when showing some animated
+  GIFs.
+
+- By selecting 'fast' mode nxagent will now skip real XGetImage
+  operations on windows. This becomes the default in the case of
+  MODEM, ISDN and ADSL links. In theory X clients should never do
+  that. In practice a few naive programs and libraries (like, sur-
+  prisingly enough, a famous Linux office automation suite) do,
+  mainly to compose images with the window's backgound. Why don't
+  they compose content into a Pixmap?
+
+- Improved the implementation of CompositeGlyphs. It now uses a
+  single call to XRenderCompositeText instead of splitting the
+  output in multiple RENDER requests.
+
+- In previous versions file NXmiwindow.o was not linked into the
+  resulting nxagent. This solves the problem of missing repaints
+  in CDE and other Xt applications. Be sure you upgrade nx-X11
+  to version nx-X11-1.3.2-2.
+
+- Added a warning when the change keyboard control or the change
+  pointer control functions are called.
+
+nxagent-1.3.2-12
+
+- Added bit-swapping of glyphs having depth 1 when agent has a
+  different bitmap-bit-order than the X server.
+
+- The KeyRelease event's timestamp calculation, accounting for
+  differences in time between the local and the remote machine,
+  will now use the timestamp taken from the last KeyPress. Using
+  the timestamp of the last event was sometimes causing time to
+  go backward with the result that server could remain grabbed.
+  This solves the long-standing "mouse stop responding" problem.
+
+- Fixed a problem handling the alpha channeled visual introduced
+  while experimenting with the new server endianess layout.
+
+nxagent-1.3.2-11
+
+- Added the Reset option to options repository. By default agent
+  will skip server reset when the last client disconnects. This is
+  equivalent to passing the -noreset option to a standard XFree86
+  server. To restore the original behaviour the new -reset option
+  can be used on the command line.
+
+- Moved the SharedMemory and DeviceControl options to the options
+  repository.
+
+- A basic session, still leveraging all the default facilities, can
+  now be run as: nxagent -name NX -geometry 800x600+10+100 :1. The
+  -fp unix/:7100 option can be added to enable access to the X font
+  server.
+
+- Fixed a "unused variable" warning in Cursor.c.
+
+nxagent-1.3.2-10
+
+- Rootless mode. Some cleanup in initialization.
+
+- Rootless mode. Working at the configure-window errors.
+
+nxagent-1.3.2-9
+
+- Removed limitations when running nxagent nested inside another
+  nxagent server. Now both render extension and packing of images
+  are enabled.
+
+- The nxagent X server now inherits its endianess from the host
+  architecture, instead of assuming the same endianess of the con-
+  necting client. This fixes the remaining problems running ses-
+  sions nested inside another nxagent server.
+
+- Removed any reference to ReformatImage().
+
+nxagent-1.3.2-8
+
+- Changed the way the agent server handles images internally.
+  The inherited Xnest code used to set the server's image order
+  to the same order of the remote X display. This caused agent
+  to create images in the internal frame-buffer with a different
+  endianess in respect to images got from X clients.
+
+- The new image handling code seems to solve all the known image
+  endianess problems, for example cursors created on big-endian
+  displays with a wrong shape or glyphs being showed flipped when
+  retrieving the image data from the virtual frame-buffer.
+
+- As an added bonus the new code seems to double the performance
+  of the SPARC Solaris server when accessing i386 clients.
+
+- Commented out all the existing calls to ReformatImage(). Code
+  needs now extensive testing to see if any of the calls must be
+  actually restored.
+
+- Replaced calls to index() with strchr().
+
+nxagent-1.3.2-7
+
+- Solved a potential memory error when accessing a client or a
+  window pointer in clipboard management code after the resources
+  had been destroyed. Added a nxagentClearClipboard() function to
+  be called before a client or a window is destroyed to get rid
+  of any reference to the disposed resources.
+
+- Auto-repeated keystrokes generated by agent from inside the
+  virtual keyboard device are now ignored. Agent will correctly
+  honor auto-repeated keystrokes generated by the real X server.
+  This is actually the expected behaviour. The former implemen-
+  tation triggered an annoying bug, with keystrokes being inad-
+  vertedly auto-repeated in the case of high latency on the
+  network link.
+
+- Agent will now ignore the pointer settings changes generated
+  inside the remote session. The original behaviour was to reset
+  the pointer values (for example acceleration) to the X factory
+  settings at session startup. Agent will now inherit whatever
+  values are set on the real X display.
+
+- Added a -noignore parameter. When passed, agent will propagate
+  to the real X server any change to keyboard and pointer control
+  settings operated by its own X clients.
+
+nxagent-1.3.2-6
+
+- Fixed problem with glyphs being drawn clipped in the virtual
+  frame buffer. This is not yet the final solution but it seems
+  to work in all the circumstances where problem was observed
+  in the past. Problem seems to be caused by scratch pixmaps
+  being requested with a width and height smaller than actually
+  required. Note anyway that pixmap's buffer seems to be never
+  accessed beyond its boundary. This probably means that memory
+  for the pixmap is originally allocated using the right size.
+
+- Moved backing-store selection to options repository. Now by
+  default the backing-store mode is set to WhenRequested. This
+  means that, in most cases, there is no need to pass the -bs
+  option on the command line.
+
+- Code cleanup in Render.c, NXrender.c, NXglyph.c.
+
+nxagent-1.3.2-5
+
+- Fixed initialization of all the supported depths. Previous
+  versions correctly initialized the various depths but still
+  failed to advertise the support of any other depth than the
+  default depth supported by the remote X server.
+
+- Persistent mode. We now correctly propagate the pixmap ID of
+  the parent to the virtual pixmap at reconnection. This fixes
+  the reconnection errors when render extension is enabled.
+
+- Persistent mode. Solved the refresh problems at reconnection.
+  Problems were generated by the lack of window parent's ID at
+  the time session was reconnected.
+
+- Changed the agent's behaviour at the time the close button is
+  pressed. If agent is running in persistent mode a new dialog
+  is showed with the option to suspend the session.
+
+nxagent-1.3.2-4
+
+- Persistent mode. At the time the proxy connection is reset the
+  per-client unpack geometry information is cleared. This makes
+  agent find out that a new unpack geometry is needed as soon as
+  the display is reconnected.
+
+- Persistent mode. Lot of logging added in order to trace use of
+  resources as long as they are recreated. The current version
+  fails to correctly restore the picture information when render
+  is enabled.
+
+nxagent-1.3.2-3
+
+- Finally fixed all the problems with missing initialization of
+  pixmap formats. The screen info is now correctly set up even
+  when the remote display doesn't support all the target depths.
+  Many thanks to Michael L Torrie who helped me to reproduce the
+  problem and come to a solution.
+
+- Moved initialization of depths, default drawables and pixmap
+  formats to their own functions in Display.c.
+
+nxagent-1.3.2-2
+
+- Fixed the nxagentDestroyPixmap() function to correctly take into
+  account the reference counter of the virtual pixmaps. This solves
+  the crashes observed when running some GTK clients like xchat.
+
+- Added a function Pixmap.c to forcibly destroy the pixmaps created
+  in the virtual framebuffer when the parent pixmap is destroyed.
+
+- This version contains some verbose output intended to better test
+  the new behaviour. The output will be removed in future versions.
+
+nxagent-1.3.2-1
+
+- More cleanup in Pixmap.c.
+
+- Rewritten nxagentCreatePixmap(). Corrected an error where the
+  bitsPerPixel field was set to the pixmap's depth instead of the
+  result of BitsPerPixel(depth). This finally solves the problem
+  of text being incorrectly rendered in the virtual framebuffer.
+
+- Corrected the X error returned at the end of session when trying
+  to free a pixmap with an invalid id.
+
+- Opened the 1.3.2 branch.
+
+nxagent-1.3.1-32
+
+- Cleanup of Pixmap.h/Pixmap.c. Renamed macros according to the
+  nxagent naming conventions.
+
+nxagent-1.3.1-31
+
+- When running in fullscreen mode, grab and ungrab of pointer and
+  keyboard is performed in new functions, placed in Events.c.
+
+- The event loop now checks if the enter/leave notify carries a
+  NotifyInferior detail and, in this case, doesn't perform the grab.
+  This saves half the amount of grabs (and the related roundtrips)
+  performed by the previous version.
+
+- Ungrab of pointer is now performed whenever the cursor leaves the
+  fullscreen window. In previous version only the keyboard was
+  explicitly ungrabbed.
+
+- Added a warning in the event loop when receiving a MappingNotify.
+  This event is presently unhandled and seems to be reported, as a
+  consequence of the selected event mask, only by some X servers.
+
+nxagent-1.3.1-30
+
+- Reverted the patch introduced in Pixmap.c. The whole issue is
+  being investigated in its ramifications up to the virtual frame
+  buffer.
+
+nxagent-1.3.1-29
+
+- Fixed a problem in the nxagentDestroyPixmap function where the
+  reference counter of pixmaps could be decremented twice. This
+  could lead to agent trying to free the pixmaps more than once.
+
+- On Solaris there is no description for pc105 keyboard model. As
+  a workaround we consider pc104 to be the closest approximation.
+
+nxagent-1.3.1-28
+
+- Fixed a bug in the create window procedure. With some clients,
+  like Maelstrom and xmame, the creation of the main window was
+  failing due to the wrong colormap and visual attributes used
+  by agent on the real X server.
+
+- In fullscreen mode the keyboard is now grabbed at the time we
+  receive an EnterNotify event. This fixes a problem at startup
+  observed on some Debian based distributions where agent didn't
+  receive the keyboard focus until user had minimized and then
+  brought to front the agent's window. The grab is now correctly
+  performed by using the timestamp of the remote X server ins-
+  tead of our local timestamp.
+
+- In NXdixfonts.c strings corresponding to names of fonts and
+  font aliases cached by nxagent were missing the terminating
+  zero.
+
+- In function InitClientPrivates fixed the missing initializa-
+  tion of the is_ignored member of the ClientPriv structure.
+
+- Added the Persistent option to Options repository. The flag is
+  intended to replace the old nxagentEnableReconnect variable.
+
+nxagent-1.3.1-27
+
+- Fixed a memory allocation problem in Keyboard.c. A string was
+  allocated in the heap without making enough room for the trail-
+  ing zero.
+
+nxagent-1.3.1-26
+
+- Added further run-time checks to verify that pixmaps are not
+  created with bad bit-per-plane settings. This problem seems to
+  be caused by lack of support by nxagent of some combinations
+  of depth and visual when the render extension is enabled. If
+  this is the case, hide the render extension to new clients and
+  force any subsequent render operation to return a BadRequest
+  error. This required including extension.c from dix. A new
+  NXextension.c file is added to the distribution.
+
+- A problem was reported by Valgrind about reading the first 4
+  bytes just after the block allocated in fbCreatePixmap from
+  nxagentCreatePixmap. A quick fix was added to pixmap.c from
+  dix so that AllocatePixmap adds 4 additinal bytes to each
+  buffer.
+
+nxagent-1.3.1-25
+
+- Fixed a memory corruption error. The original AllocateGlyphSet
+  from render/glyph.c could be called instead of the NX counter-
+  part defined in NXglyph.c. This could lead to the missing
+  allocation of the trailing remote glyphset id field.
+
+- Added initialization of an otherwise usused string in function
+  nxagentPropagateArtsdProperties(). The whole string is probably
+  to be removed in future versions.
+
+- Moved the flag used to avoid reentrancy in GCOps to a separate
+  Trap header and source.
+
+- Further cleanup. Removed the zombie file NXglyphcurs.h.
+
+- Added missing initialization of the picture pointer in private
+  window's data in nxagentCreateWindow.
+
+nxagent-1.3.1-24
+
+- Added the missing timeout when calling WaitForSomething() at
+  startup. The bug caused the splash to remain on screen until
+  a further event was received.
+
+- Fixed a BadAtom error on Windows during initialization. Error
+  was caused by a bad attempt to change the NX_AGENT_SIGNATURE.
+
+- Hunting the 0 bits-per-plane drawable bug in nxagentValidateGC.
+  Added tracing output and additional checks. GC validation is
+  skipped if it is not possible to recover an appropriate value.
+
+- Ensured that nxagentDisplayName is set before calling the post
+  initialization procedure.
+
+nxagent-1.3.1-23
+
+- When session is run nested inside another NX X agent, all the
+  optimizations regarding remote expose events on fully visible
+  windows are disabled. This solves the refresh problems encoun-
+  tered when covering the nested session with a window from the
+  local X server.
+
+- Reusing NX_AGENT_SIGNATURE atom to detect nested operation.
+  Atom is created internally to the agent server at startup,
+  before any atom on the real display.
+
+- Fixed construction of caption used for dialog boxes spawn by
+  agent. The previous algorithm failed to identify the correct
+  string in parameter -name passed on the command line.
+
+nxagent-1.3.1-22
+
+- Ensured that state of keyboard modifiers is initialized with
+  values from the real X server when the first key stroke is
+  pressed by the user.
+
+- Fixed the X_SetInputFocus errors generated at session startup.
+
+- Rootless mode. Ensured that remote expose events are always
+  reported by the remote proxy. This is a temporary fix looking
+  forward for better handling of visibility events.
+
+nxagent-1.3.1-21
+
+- Saved a GetWindowAttributes and a GetGeometry in the function
+  drawing the splash screen.
+
+- Better handling of splash at startup. Removed the flickering on
+  Windows without recurring to another atom. This is achieved by
+  optimizing drawing and delaying mapping of the main windows.
+
+- Modified the magic values activating rootless mode to 100x100.
+
+- Removed modifications introduced in 1.3.1-20.
+
+nxagent-1.3.1-20
+
+- Working on eliminating the splash screen flickering on Windows
+  and Darwin. Checked if the NX_SPLASH atom has been created by
+  the NX X server. If this is the case, we let the NX X server
+  show the splash screen on our behalf.
+
+nxagent-1.3.1-19
+
+- Improved the initialization phase by removing a GetProperty, an
+  InternAtom and two GetInputFocus round-trips.
+
+- Added appropriate masking of the state bits reported by the
+  XkbStateNotifyMask event.
+
+- Added a simple mechanism during the itialization phase to trace
+  the use of X server replies.
+
+nxagent-1.3.1-18
+
+- Made some order in functions loading the NX icon.
+
+- Removed some more zombie files from agent distribution. Now only
+  the files imported from DIX and MI have name prepended with NX.
+
+nxagent-1.3.1-17
+
+- Moved names and values of intern atoms created by agent in their
+  specific header and source.
+
+- We temporarily force rootless mode if user provides a geometry
+  of 801x601. This is intended to simplify testing. Note that if
+  rootless is selected, we'll anyway disregard any geometry set
+  by the user, assuming the geometry of the real display.
+
+nxagent-1.3.1-16
+
+- We are checking now whether NX_IDENTITY intern atom is created
+  before NX_SPLASH. We want NX X servers to show the splash on our
+  behalf, so if NX_SPLASH is already interned, than we just skip
+  the splash procedure.
+
+nxagent-1.3.1-15
+
+- Rootless mode. Fixed a segfault handling ConfigureNotify events
+  on top-level windows.
+
+- Moved handling of ClientMessages coming from proxy in a separate
+  function.
+
+nxagent-1.3.1-14
+
+- Rewritten the code dealing with key modifier changes. Now we
+  use XKB events instead of synchronous XkbGetIndicatorState()
+  calls.
+
+- Moved activation of keyboard and pointer events to Events.c.
+
+- Removed pointer motion optimizations as a better logic, taking
+  in account the selected link speed, is already implemented in
+  proxy.
+
+nxagent-1.3.1-13
+
+- Renamed the -reconnect option as -persistent.
+
+- Rootless mode. Agent's root windows are not mapped at startup.
+
+- Removed the zombie file glyphcurs.c from agent distribution.
+
+nxagent-1.3.1-12
+
+- Corrected a typo in the new CopyArea code in GCOps.c where:
+
+  if (srcx > nxagentWidth)  srcx = nxagentWidth;
+  if (srcy > nxagentHeight) srcx = nxagentHeight;
+
+  had to be:
+
+  if (srcx > nxagentWidth)  srcx = nxagentWidth;
+  if (srcy > nxagentHeight) srcy = nxagentHeight;
+
+- Added handling of the fullscreen command line parameter to the
+  options repository.
+
+- Added agent geometry parameters to the options repository.
+
+nxagent-1.3.1-11
+
+- Rootless mode. Added handling of configuration events reported
+  for the top-level windows.
+
+- Rootless mode. Children of the root window get the event mask
+  selected when the window is created. This makes the keyboard
+  work at least with xterm and other simple clients. There are
+  still problems with the pointer events.
+
+- Created new Splash.h and Splash.c sources file to contain the
+  few splash screen procedures that were previously sparsed in
+  multiple files.
+
+- Added traces in all the window creation procedures and in the
+  initialization routines called at startup.
+
+- Renamed some source files to make simpler to identify what is
+  imported from DIX and what actually pertains to agent.
+
+nxagent-1.3.1-10
+
+- Added the missing RestackWindow screen operation. This solves
+  problems of incorrect stacking order observed in menus when
+  using the drop shadow feature in the latest KDE versions.
+
+nxagent-1.3.1-9
+
+- The new standard for checking previous inclusion of headers is
+  by verifying definition of _Filename_H_ where Filename is the
+  base name of the file, for example __Options_H__ in the case
+  of "Options.h". This is intended to be a step in reducing the
+  number of defines in code prefixed with NXAGENT.
+
+- Updated NX copyright to year 2004. Placed copyright statement
+  regarding NXAGENT and NX modifications to the Xnest software
+  at the beginning of the file. Checked again if credit is given
+  to all the existing copyright owners.
+
+nxagent-1.3.1-8
+
+- Added a new Options repository to store the values currently
+  dispersed all over around. The new macros nxagentOption(option)
+  and nxagentChangeOption(option, value) should be used from now
+  on to access the important values affecting agent's operations.
+
+- General cleanup of code. Removed the remaining references to
+  the Xnest legacy code.
+
+nxagent-1.3.1-7
+
+- Some steps forward toward rootless agent. Now all the top level
+  windows are correctly created. Drawing to the real screen seems
+  to work without problems. It is still not possible to get events
+  in the event loop and the remote WM is interfering with the WM
+  on the local display.
+
+- More cleanup of code. Some changes to parts added since 1.3.1-5.
+
+nxagent-1.3.1-6
+
+- A drawable with 0 bpp can somehow arrive to the fb layer. The
+  problem needs to be better investigated. In the meanwhile a
+  quick check is added to correctly identify the ill condition.
+
+- Small fix to allow Num/Caps lock synchronization also on the
+  windows platform. This is still to be considered beta quality.
+
+- New options -slow and -fast added to agent. When "fast mode" is
+  not set, agent will query the remote X server to get real content
+  of drawables. When fast mode is enabled, agent will save the
+  round-trip by just clearing the drawable to its background. The
+  default mode is "slow", thus agent will always query the remote
+  server. When "fast mode" is explicitly set or when NX transport
+  is detected and the link is one of MODEM, ISDN and ADSL, agent
+  will default to "fast mode". This behaviour can be overridden by
+  system administrators by setting the key AGENT_EXTRA_OPTIONS_X
+  to "-slow" in node configuration.
+
+nxagent-1.3.1-5
+
+- Created framework for rootless agent. Added a -rootless option.
+
+- Slowly going toward a better organization of nxagent internals.
+  Renamed some files and moved things around. Changed some comments
+  in Screen.c to be more explainatory.
+
+nxagent-1.3.1-4
+
+- Changed default keyboard model to "pc102" (was "pc101") to correct
+  problems with "<" and ">" keys on the German keyboards and, poten-
+  tially on other layouts.
+
+- Added new parameter -kbtype to handle both geometry and layout in
+  a single form, for example pc102/pl. Parameter -keyboard is still
+  supported for backward compatibility.
+
+- Synchronization of Num and Caps lock status is now done comparing
+  the real keyboard and the internal state at the time nxagent gets
+  the focus. If state doesn't match, a fake keyboard event is sent.
+
+nxagent-1.3.1-3
+
+- Fixed a further problem on CopyArea between windows and pixmaps.
+
+nxagent-1.3.1-2
+
+- Implemented CopyArea on framebuffer when copying from windows to
+  pixmaps. Added the -slow command line switch to let nxagent get
+  the real content of the window from the X server. This requires
+  an expensive round-trip so it is disabled by default.
+
+nxagent-1.3.1-1
+
+- Opened the 1.3.1 branch.
+
+nxagent-1.3.0-32
+
+- Fixed a bug on 16 bpp displays using render extension. Now only
+  images which are used by render pictures and which have depth 32
+  are created with a different visual color mask. This saves a big
+  amount of SetUnpackColormap requests.
+
+nxagent-1.3.0-31
+
+- Fixed a bug in nxagentComposite routine. The macro nxgentPicturePriv
+  was used without checking for a null pointer argument.
+
+nxagent-1.3.0-30
+
+- Limitations on bandwidth introduced whenever the agent's window
+  is covered are now disabled by default. They can be enabled by
+  specifying the -limit option on the command line. The -nolimit
+  option is left for compatibility with the previous versions.
+  This handy feature caused complaints in the past from users who
+  instruct window managers to not move the window having focus on
+  top of the stacking order.
+
+nxagent-1.3.0-29
+
+- Removed the warnings issued at compile time.
+
+nxagent-1.3.0-28
+
+- Replaced the corrupted file nxagent.xpm with the original version.
+
+nxagent-1.3.0-27
+
+- Hopefully fixed all the remained memory leaks. Most problems were
+  due to agent's render extension not freeing resources on X server.
+
+- Added support for big-endian X server display on render extension.
+  Glyphs are reformatted according with the destination order.
+
+- Added per client information for SetUnpackGeometry, now the unpack
+  routines should have the correct information for the color mask at
+  the end of the split process.
+
+
+nxagent-1.3.0-26
+
+- Changed the message printed in the log when leaving the dispatch
+  loop from 'Error' to 'Info'.
+
+- Moved initialization of _NXFlushSize to nxcompext in order to set
+  value at the time NXGetControlParameters() is called.
+
+nxagent-1.3.0-25
+
+- Content of selection is now acquired using a single round-trip.
+  If content exceeds 262144 bytes, it is truncated at that size.
+  This works in most situations, at least with text, that, by the
+  way, is the only target supported at the moment. An improvement
+  would be to modify the state machine in a way that the remaining
+  data part is got using a second round-trip. This is not difficult
+  to do and can be considered for future releases.
+
+- In handling of clipborad we had to disable check on multiple
+  convert selection requests from the same client. There is a bug
+  in the algorithm that prevents the counter to be reset at the
+  appropriate time. This is to be investigated.
+
+nxagent-1.3.0-24
+
+- Added asynchronous handling of GetProperty requests and replies
+  using the NXCollectProperty and NXGetCollectedProperty requests
+  and the NXCollectPropertyNotify event in NXclipboard.c and in
+  Event.c. Implementation is not complete yet and can sometimes
+  cause X clients to misbehave.
+
+- Function xnestBitBlitHelper() now always returns NullRegion.
+  Handling of graphical expose events should be rewritten so that
+  regions are always generated internally to nxagent. Returning a
+  null region without checking our event queue, anyway, saves a
+  flush of the display buffer and doesn't seem to affect the
+  functionalities.
+
+- This version comprises modifications to Events.c, GCOps.c,
+  NXClipboard.c, NXwindow.c and Window.c where I found XSync()
+  messages (or code used to just send XSync() messages) outside
+  any #ifdef ..._DEBUG.
+
+nxagent-1.3.0-16
+
+- A dialog is showed at startup if proxy was not able to load a
+  persistent cache.
+
+- Reflected changes introduced in NXGetControlParameters() to add
+  more detailed information about the compression settings.
+
+- Fixed a potential bug with the name of the agent's display at the
+  time a dialog had to be showed. String was allocated with only 6
+  characters. This could lead to dialogs not being showed using
+  display ports greater than 9999.
+
+- NX.h is now included by NXControl.h. Removed #include directives
+  from other files.