=============================================================================== 2.3.3 =============================================================================== [1] VirtualGL will no longer throw an exception if a 3D application calls certain X11 and GLX functions with a NULL argument. It will instead allow the underlying X11 or GLX library to handle the error. This specifically works around an issue with Fiji. ------------------------------------------------------------------------------- [2] Worked around an issue whereby, when ANSYS Workbench 14.5 was run with VirtualGL, subprocesses (such as the geometry editor) launched from within the Workbench environment would not exit properly (and thus would become zombies.) This issue also affected ANSYS HFSS, which would either lock up when exiting or would print an error message: "terminate called after throwing an instance of 'rrerror'". ------------------------------------------------------------------------------- [3] Worked around an issue whereby, when using MAGMA5 with VirtualGL, the second and subsequent perspectives opened within the application would not always display correctly. ------------------------------------------------------------------------------- [4] Added support for the GLX_EXT_texture_from_pixmap extension. ------------------------------------------------------------------------------- [5] Added support for the GLX_EXT_swap_control and GLX_SGI_swap_control extensions and a new configuration variable (VGL_REFRESHRATE) that can be used to control them. See the User's Guide for more information. ------------------------------------------------------------------------------- [6] Added support for depth=32 visuals and FB configs. ------------------------------------------------------------------------------- [7] Added a new "window manager" mode that disables certain features in VirtualGL that interfere with 3D window managers such as compiz. This, combined with [6] and [4] above, should allow compiz to run properly with this version of VirtualGL, provided that the 2D X Server has support for the X Composite extension. See the User's Guide for more information. ------------------------------------------------------------------------------- [8] Fixed a BadDrawable X11 error that occurred when running the Steam client in VirtualGL. ------------------------------------------------------------------------------- [9] Improved the accuracy of TCBench and CPUstat ------------------------------------------------------------------------------- [10] Streamlined VirtualGL's behavior when it is installed from source: -- vglrun now works regardless of where the faker libraries have been installed. The build system hard-codes the value of the VGL_LIBDIR CMake variable into a script that vglrun invokes so it can add this directory to LD_LIBRARY_PATH. If the faker libraries are installed into a system library directory, then packagers can choose to omit the new script, and vglrun will continue to work as it always has. -- Whenever a 64-bit build is installed, glxspheres is now renamed glxspheres64, per the convention of the official packages. This makes it possible to install a 32-bit and a 64-bit version of VirtualGL into the same directory. -- If the install prefix is set to the default (/opt/VirtualGL), then the build system defaults to installing faker libraries from a 32-bit build into /opt/VirtualGL/lib32 and faker libraries from a 64-bit build into /opt/VirtualGL/lib64. -- Similarly, if the install prefix is set to the default (/opt/VirtualGL), then the build system defaults to installing the libGL symlink for Chromium from a 32-bit build into /opt/VirtualGL/fakelib32 and the libGL symlink for Chromium from a 64-bit build into /opt/VirtualGL/fakelib64. ------------------------------------------------------------------------------- [11] PBO readback mode is now enabled by default. Further research has shown that professional-grade GPUs always benefit from PBOs being enabled (quite dramatically, in the case of AMD FirePro adapters.) With consumer-grade AMD adapters, PBOs generally do no harm, and with consumer-grade nVidia (GeForce) adapters, the results are mixed. The GeForce drivers will fall back to blocking readbacks if the pixel format requested in glReadPixels() doesn't match the pixel format of the Pbuffer, so PBOs will generally be slower in those cases. Thus, VirtualGL now falls back to synchronous readback mode if it detects that PBOs are not behaving asynchronously. Further, VGL_FORCEALPHA is no longer enabled by default when PBOs are enabled. This option was introduced because of the GeForce behavior mentioned above, but the option has no effect whatsoever with the professional-grade GPUs that are recommended for use with VirtualGL. Instead, VGL will now detect situations in which VGL_FORCEALPHA might be beneficial and suggest enabling or disabling it (if VGL_VERBOSE=1.) ------------------------------------------------------------------------------- [12] This version of VirtualGL provides a binary package and full support for Cygwin64. ------------------------------------------------------------------------------- =============================================================================== 2.3.2 =============================================================================== [1] Added new stereo options, including green/magenta and blue/yellow anaglyphic as well as three half-resolution passive stereo options that can be used to drive 3D TV's. ------------------------------------------------------------------------------- [2] The 32-bit supplementary package for amd64 Debian systems should now work properly on MultiArch-compatible systems (such as Ubuntu 11 and later.) ------------------------------------------------------------------------------- [3] vglserver_config should now work properly with LightDM. ------------------------------------------------------------------------------- [4] VirtualGL was not advertising that it supported the GLX_ARB_create_context_profile extension, even though it does. This has been fixed. ------------------------------------------------------------------------------- [5] VirtualGL now uses a separate OpenGL context to perform pixel readback. This fixes several issues, including an error ("GL_ARB_pixel_buffer_object extension not available") when trying to enable PBO readback with applications that use a 3.x or later OpenGL core profile, and incorrect rendering in JPCSP and other applications that modify certain pixel store parameters (such as GL_PACK_SWAP_BYTES or GL_PACK_ROW_LENGTH) that VirtualGL wasn't properly handling. ------------------------------------------------------------------------------- [6] VGL_FORCEALPHA=1 now works properly if the 3D application specifies visual attributes of GLX_RED_SIZE=GLX_GREEN_SIZE=GLX_BLUE_SIZE=1. ------------------------------------------------------------------------------- [7] glXUseXFont() has been extended to work with Pbuffers. Due to an oversight, VirtualGL would previously abort with an error message if the 3D application attempted to render text to a Pbuffer that it created, ------------------------------------------------------------------------------- [8] Fixed an issue whereby, when displaying to a 2D X server that lacked the MIT-SHM extension, the X11 Transport would sometimes fail to resize its internal Pixmap (used for double buffering) whenever the X window was resized. This specifically caused OpendTect to display only a portion of its 3D view whenever it resized its 3D window after a "Restore" operation, but the issue may have affected other applications as well. ------------------------------------------------------------------------------- [9] Previously, 3D applications running in VirtualGL could not successfully use XGetImage() to obtain the rendered 3D pixels from a GLX pixmap. This has been fixed. ------------------------------------------------------------------------------- [10] vglrun now automatically sets an environment variable that disables the execution of the VBoxTestOGL program in VirtualBox 4.2 and later. Since LD_PRELOAD is not propagated down to VBoxTestOGL whenever VirtualBox launches it (because VirtualBox is a setuid root executable), VBoxTestOGL always fails in a VirtualGL environment, which makes VirtualBox believe that the system has no 3D support. With version 4.1.10, VirtualBox began running VBoxTestOGL every time a VM was launched, which effectively prevented VBox from being used with VirtualGL unless the user hacked their system by symlinking /bin/true to /usr/lib/virtualbox/VBoxTestOGL. ------------------------------------------------------------------------------- =============================================================================== 2.3.1 =============================================================================== [1] Work around seg fault that occurred when running CoreBreach. ------------------------------------------------------------------------------- [2] VirtualGL now properly handles implicit deletion of windows/subwindows via XCloseDisplay(), implicit deletion of subwindows via XDestroyWindow(), and explicit deletion of subwindows via XDestroySubwindows(). This specifically addresses BadDrawable errors that occurred when running certain applications in WINE 1.3.34 and later. ------------------------------------------------------------------------------- [3] Fix crash in glXCreateGLXPbufferSGIX() that occurred when a NULL attribute list pointer was passed to it. ------------------------------------------------------------------------------- [4] VirtualGL should now build and run properly on FreeBSD. ------------------------------------------------------------------------------- [5] VirtualGL now works properly with applications that dynamically load libX11. This specifically fixes several issues that occurred when running SDL-based applications against a version of libSDL that was configured with --enable-x11-shared. ------------------------------------------------------------------------------- [6] Changed Debian package names to lower case ("virtualgl" and "virtualgl32") to avoid an issue whereby the package was always being installed, even if the installed version was up to date. ------------------------------------------------------------------------------- [7] vglserver_config now works properly with KDM on RHEL/CentOS 5 systems. ------------------------------------------------------------------------------- [8] Added a new option (VGL_GLFLUSHTRIGGER) that, when set to 0, will cause VirtualGL to ignore glFlush() commands from the 3D application. This is intended for rare applications that do front buffer rendering and use glFlush() as an "intermediate" synchronization command but then subsequently call glFinish() to indicate the end of the frame. ------------------------------------------------------------------------------- [9] Fixed an issue whereby drag & drop operations in certain Java applications would cause VNC servers (any VNC server, not just TurboVNC) to hang whenever the Java application was run using VirtualGL. ------------------------------------------------------------------------------- =============================================================================== 2.3 =============================================================================== [1] Fix regression bug whereby GLXSpheres would ignore the first argument after -fs. ------------------------------------------------------------------------------- [2] glXChooseFBConfig() and glXChooseFBConfigSGIX() were erroneously returning an error when a NULL attribute list pointer was passed to them. They now behave correctly. ------------------------------------------------------------------------------- [3] Fixed regression issue whereby VirtualGL would deadlock when using the X11 Transport with a remote X connection. ------------------------------------------------------------------------------- [4] Fixed a GL_INVALID_OPERATION error that would occur after a call to glXSwapBuffers() when a context with the OpenGL Core Profile was being used. ------------------------------------------------------------------------------- [5] Fixed an issue whereby VirtualGL would abort with "terminate called after throwing an instance of 'rrerror'" whenever a 3D application running in VirtualGL exited and VirtualGL was compiled with GCC 4.6. ------------------------------------------------------------------------------- [6] Added a new configuration option (VGL_DEFAULTFBCONFIG), which can be used to manually specify the rendering attributes of the default FB config that VirtualGL uses in the event that a 3D application does not call glXChooseVisual() to specify a desired set of attributes. Refer to the User's Guide for more information. ------------------------------------------------------------------------------- [7] Worked around an issue whereby using very large fonts with glXUseXFont() would cause Pixmap allocation failures with certain X servers. ------------------------------------------------------------------------------- =============================================================================== 2.3 beta1 =============================================================================== [1] Re-fixed issue that caused MainWin-based applications to hang. This was initially fixed in VGL 2.1 final, but it was re-broken by the rewrite of the global faker configuration routines in VGL 2.2. ------------------------------------------------------------------------------- [2] Overhauled the way VirtualGL handles Pixmap rendering, mainly to fix interaction issues with Mathematica. ------------------------------------------------------------------------------- [3] Added an option (VGL_ALLOWINDIRECT) which, when enabled, will cause VirtualGL to honor an application's request to create an indirect OpenGL context. Normally, VirtualGL forces all contexts to be direct for performance reasons, but this causes problems with certain applications (notably Mathematica 7.) ------------------------------------------------------------------------------- [4] Added two new command line options to GLXSpheres which allow the window size to be changed and which allow the total number of frames to be specified (the application will abort after the total number of frames has been rendered.) ------------------------------------------------------------------------------- [5] VirtualGL will no longer die if glXGetConfig() or glXGetFBConfigAttrib() is passed a NULL argument. ------------------------------------------------------------------------------- [6] Fixed a BadMatch X11 error that occurred when an application attempted to apply a new OpenGL rendering context to a drawable and the FB config of the new OpenGL context differed from that of a context that was previously applied to the same drawable. This specifically was known to affect D3D applications running in WINE. ------------------------------------------------------------------------------- [7] CMake-based build and packaging system ------------------------------------------------------------------------------- [8] TCBench now takes 100 samples/second by default instead of 50. ------------------------------------------------------------------------------- [9] Added support for the GLX_ARB_create_context extension. ------------------------------------------------------------------------------- =============================================================================== 2.2.1 =============================================================================== [1] A 64-bit version of the VirtualGL Client for Exceed is now fully supported. ------------------------------------------------------------------------------- [2] Fixed a severe readback performance problem that occurred whenever an application set the render mode to GL_SELECT and called glFlush() while doing front buffer rendering. ------------------------------------------------------------------------------- [3] vglserver_config will now work properly whenever vglgenkey is installed in a directory other than /usr/bin or /opt/VirtualGL/bin, as long as vglgenkey is installed in the same directory as vglserver_config. ------------------------------------------------------------------------------- [4] vglconnect now allows the user to specify the directory in which VirtualGL binaries are installed on the server, rather than always assuming that they are in /opt/VirtualGL/bin. ------------------------------------------------------------------------------- [5] Fixed issues with vglconnect.bat that occurred when it was installed under c:\Program Files (x86) on 64-bit Windows systems and invoked with the -x or -s options. ------------------------------------------------------------------------------- [6] Clarified the documentation of the VGL_DISPLAY option and documented how to use VirtualGL with multiple graphics cards. ------------------------------------------------------------------------------- [7] VirtualGL will no longer die if glXDestroyContext() is passed a NULL argument. ------------------------------------------------------------------------------- [8] Fixed a BadWindow error that would occur whenever a 3D application attempted to call glXSwapIntervalSGI() (specifically, this was observed when running Direct3D applications using WINE 1.3.11 or later.) The nVidia GLX implementation requires that a window be current (not a Pbuffer) when calling glXSwapIntervalSGI(), so VirtualGL now interposes that function and makes it a noop. ------------------------------------------------------------------------------- [9] Fixed an issue whereby, if a 3D application set GL_{RED|GREEN|BLUE|ALPHA}_SCALE or GL_{RED|GREEN|BLUE|ALPHA}_BIAS to non-default values, the colors would appear wrong when running the application in VirtualGL, and the readback performance would be very slow. ------------------------------------------------------------------------------- [10] Fixed an issue whereby 3D applications that requested an overlay visual would fail with BadRequest or other X11 errors if the 2D X server lacked GLX support (as is the case with TurboVNC.) This was caused by the fact that VirtualGL passes through glXChooseVisual() and related calls to the 2D X server if it detects that an overlay visual is being requested. Now, VirtualGL will first check that the 2D X server supports GLX before passing through those calls. ------------------------------------------------------------------------------- [11] vglclient -kill and vglclient -killall now work (again) in the Exceed client. ------------------------------------------------------------------------------- =============================================================================== 2.2 =============================================================================== [1] Added VGL_SPOILLAST environment variable which, when set to 0, will change the frame spoiling algorithm used for frames triggered by glFlush() calls. This is necessary to make Ansoft HFSS display properly. ------------------------------------------------------------------------------- [2] Add compatibility mode to allow NetTest to communicate with older versions (from VGL 2.1.x and prior.) ------------------------------------------------------------------------------- [3] Fix race condition in vglclient which would frequently cause an "incorrect checksum for freed object" error when the client was shut down via CTRL-C. This problem was reported only on OS X but could have existed on other platforms as well. ------------------------------------------------------------------------------- =============================================================================== 2.2 beta1 =============================================================================== [1] Added option which, when enabled, will cause VirtualGL to display a logo in the bottom right-hand corner of the 3D window. This is meant as a debugging tool to allow users to determine whether or not VirtualGL is active. ------------------------------------------------------------------------------- [2] Support for encrypting the VGL Transport with OpenSSL has been removed from the default build and distribution packages. It was only a marginally useful feature, because VirtualGL also has the ability to tunnel the VGL Transport through SSh. It was necessary to maintain our own static OpenSSL libraries on Linux in order to provide a version of VirtualGL that was compatible across all Linux platforms, and this required us to keep abreast of the latest OpenSSL security fixes, etc. OpenSSL support can easily be re-added by building VirtualGL from source (see BUILDING.txt.) ------------------------------------------------------------------------------- [3] Added a framework for creating generic image transport plugins. See rrtransport.h for a description of the API. ------------------------------------------------------------------------------- [4] Removed support for the proprietary Sun Ray plugin, since that plugin is no longer available from Sun. ------------------------------------------------------------------------------- [5] For Linux, Mac/Intel, Solaris/x86, and Windows systems, the default build of VirtualGL no longer uses TurboJPEG/IPP (which was based on the proprietary Intel Performance Primitives) or Sun mediaLib. Instead, VirtualGL now uses libjpeg-turbo, a fully open source vector-accelerated JPEG codec developed in conjunction with the TigerVNC Project (and based on libjpeg/SIMD.) As a result of this, it is no longer necessary to install a separate TurboJPEG package on Linux systems. ------------------------------------------------------------------------------- [6] Added a universal 32/64-bit VirtualGL Client binary for OS X. The 32-bit fork works on 10.4 "Tiger" or later, and the 64-bit fork works on 10.5 "Leopard" or later. ------------------------------------------------------------------------------- [7] Added support for encoding images as I420 YUV and displaying through X Video. The images can either be displayed directly to the X server or sent through the VGL transport for display using vglclient. See the User's Guide for more details. ------------------------------------------------------------------------------- [8] Renamed /etc/modprobe.d/virtualgl to /etc/modprobe.d/virtualgl.conf to comply with the Ubuntu standard. ------------------------------------------------------------------------------- [9] Added VGL_SAMPLES environment variable (and vglrun -ms command line switch) to force VirtualGL to select a multisampled visual or override the level of multisampling selected by the 3D application. ------------------------------------------------------------------------------- [10] The uninstall script in the Mac distribution package should now work on OS X 10.6. ------------------------------------------------------------------------------- [11] VirtualGL can now use pixel buffer objects (PBO's) to accelerate the readback of the 3D pixels. This particularly helps when multiple users are sharing the GPU. See the "Advanced Configuration" section of the User's Guide for more information. ------------------------------------------------------------------------------- [12] On Linux systems, this version of VirtualGL works around the interaction issues between libdlfaker.so and VirtualBox, thus eliminating the need to specify CR_SYSTEM_GL_PATH or to run the VirtualBox application using 'vglrun -nodl'. ------------------------------------------------------------------------------- [13] This version of VirtualGL provides a binary package, documentation, and full support for Cygwin/X. ------------------------------------------------------------------------------- [14] Fixed "free(): invalid pointer" error which occurred whenever an application called XCloseDisplay() and the VGL_XVENDOR environment variable was set. ------------------------------------------------------------------------------- [15] VirtualGL should now work properly when used with applications that render to framebuffer objects (FBO's). ------------------------------------------------------------------------------- [16] vglconnect.bat should now work properly on 64-bit Windows systems. Previously, it would fail if it was installed under the "Program Files (x86)" directory. ------------------------------------------------------------------------------- [17] Added -gid option to vglserver_config to allow the group ID of the vglusers group to be specified, if that group must be created. ------------------------------------------------------------------------------- [18] TCBench should now work properly on OS X. ------------------------------------------------------------------------------- =============================================================================== 2.1.4 =============================================================================== [1] Fixed a regression bug in vglserver_config which caused a "binary operator expected" error when restricting framebuffer device access to the vglusers group. ------------------------------------------------------------------------------- [2] Fixed an issue in vglserver_config whereby the device permissions were not being set correctly on SuSE Linux Enterprise Desktop 11. ------------------------------------------------------------------------------- [3] VGL should now properly ignore GLX_BUFFER_SIZE if an application attempts to specify it when requesting a true color visual. Specifically, this allows the Second Life SnowGlobe client to run properly in VGL and WINE. ------------------------------------------------------------------------------- [4] vglserver_config should now work even if /sbin and /usr/sbin are not in the PATH. ------------------------------------------------------------------------------- [5] The Solaris 10/x86 version of VirtualGL should now work properly with the nVidia 18x.xx series drivers. ------------------------------------------------------------------------------- [6] Fix memory leak that occurred when running VirtualGL in quad-buffered stereo mode. ------------------------------------------------------------------------------- [7] The DRI device permissions in RHEL 5 were being overridden whenever a user logged in, because RHEL 5 uses a file in /etc/security/console.perms.d to specify the default DRI permissions rather than using /etc/security/console.perms. vglserver_config has been modified to handle this. ------------------------------------------------------------------------------- [8] Added an option to vglconnect on Linux/Unix to allow it to use gsissh from the Globus Toolkit instead of the regular ssh program. ------------------------------------------------------------------------------- =============================================================================== 2.1.3 =============================================================================== [1] VirtualGL 2.1.2 printed numerous "Cannot obtain a Pbuffer-enabled 24-bit FB config ..." error messages when starting Google Earth. This has been fixed, and the message has been changed to a warning and clarified. These error messages were printed whenever the application called VirtualGL's interposed version of glXChooseVisual() and that function subsequently failed to obtain an appropriate visual for performing 3D rendering. However, this is not necessarily an error, because applications will sometimes call glXChooseVisual() multiple times until they find a visual with desired attributes. ------------------------------------------------------------------------------- [2] Changed the matching criteria in VirtualGL's interposed version of dlopen(). In previous versions of VirtualGL, any calls to dlopen("*libGL*") would be replaced with a call to dlopen("librrfaker.so"). This caused problems with VisIt, which has a library named "libGLabelPlot.so" that was being interposed by mistake. The matching criteria has been changed such that dlopen() only overrides calls to dlopen("libGL\.*") or dlopen("*/libGL\.*"). ------------------------------------------------------------------------------- [3] vglserver_config should now work properly with DRI-compatible graphics drivers (including ATI.) ------------------------------------------------------------------------------- [4] VirtualGL's interposed version of dlopen() will now modify calls to dlopen("libdl*") as well as dlopen("libGL*"). This is to work around an interaction issue with v180.xx of the nVidia accelerated 3D drivers and WINE. ------------------------------------------------------------------------------- [5] Fixed interaction issue with QT4 in which VirtualGL would not properly handle window resize events under certain circumstances. ------------------------------------------------------------------------------- [6] Moved dlopen() back into a separate faker library (libdlfaker.so.) libdlfaker.so is loaded by default, which should maintain the behavior of VGL 2.1.2. However, it can be unloaded by passing an argument of '-nodl' to vglrun. The latter is necessary to make VirtualBox 2.2.x work with VirtualGL. ------------------------------------------------------------------------------- [7] vglserver_config should now work properly on Ubuntu 9.04 when using gdm or kdm. It should also (mostly) work on Fedora 11 (disabling XTEST does not work on Fedora 11 when using gdm.) ------------------------------------------------------------------------------- [8] Added fallback logic to VirtualGL's symbol loader which will try to directly load the GLX/OpenGL symbols from libGL.so.1 and the X11 symbols from libX11.so.6 if loading these symbols using dlsym(RTLD_NEXT, ...) fails. This is to work around an issue with version 18x.xx of the nVidia Linux Display Driver. ------------------------------------------------------------------------------- [9] If an application window was destroyed by the window manager and the application did not explicitly monitor and handle the WM_DELETE protocol message, then previous versions of VirtualGL would, when using the X11 image transport, generally abort with an X11 BadDrawable error. This occurred because the window was basically being ripped out from underneath VirtualGL's blitter thread without warning. This version of VirtualGL has been modified to monitor WM_DELETE messages, so VirtualGL can now bow out gracefully if the 3D application window is closed by the window manager but the application does not handle WM_DELETE. ------------------------------------------------------------------------------- [10] Worked around an interaction issue with IDL whereby the application was calling XGetGeometry() with the same pointer for every argument, and this was causing VirtualGL to lose the width and height data returned from the "real" XGetGeometry() function. Subsequently, the Pbuffer corresponding to the main IDL window would become improperly sized, and the rendering area would not appear to update. ------------------------------------------------------------------------------- [11] Added VGL_TRAPX11 option, which will cause VirtualGL to gracefully trap X11 errors, print a warning message when these occur, and allow the application to continue running. ------------------------------------------------------------------------------- =============================================================================== 2.1.2 =============================================================================== [1] Fixed a buffer overrun issue in TurboJPEG/mediaLib that may have caused problems on Solaris/x86 VirtualGL servers. ------------------------------------------------------------------------------- [2] Integrated libdlfaker.so into librrfaker.so to eliminate the need for invoking 'vglrun -dl'. ------------------------------------------------------------------------------- [3] Developed a proper uninstaller app for the Mac OS X VirtualGL package. ------------------------------------------------------------------------------- [4] Modified MAXINST variable in SUNWvgl Solaris package to prevent multiple instances of this package from being installed simultaneously. ------------------------------------------------------------------------------- =============================================================================== 2.1.1 =============================================================================== [1] Fixed issues that occurred when displaying to the second or subsequent screens on a multi-screen X server. ------------------------------------------------------------------------------- [2] Updated to wxWindows Library License v3.1. ------------------------------------------------------------------------------- [3] Added uncompressed YUV encoding option to the Sun Ray plugin. This provides significantly better performance than DPCM on Sun Ray 1 clients, and it provides significantly better image quality in all cases. YUV encoding will generally use about 50% more network bandwidth than DPCM, all else being equal. ------------------------------------------------------------------------------- [4] Further optimized the Huffman encoder in the mediaLib implementation of TurboJPEG. This should decrease the CPU usage when running VirtualGL on Solaris VirtualGL servers, particularly Solaris/x86 servers running 32-bit applications. ------------------------------------------------------------------------------- [5] vglconnect now works properly with Cygwin. ------------------------------------------------------------------------------- [6] Fixed regression that caused VirtualGL to remove any part of the VGL_XVENDOR string following the first white space. ------------------------------------------------------------------------------- [7] vglserver_config now works properly with OpenSolaris systems. ------------------------------------------------------------------------------- [8] glXUseXFont() now works if a Pixmap is the current drawable. ------------------------------------------------------------------------------- [9] vglserver_config now works properly with Debian Linux systems. ------------------------------------------------------------------------------- [10] Fixed a typo in vglconnect which caused it to leave temporary files lying about. ------------------------------------------------------------------------------- [11] Removed libXm (Motif) dependency in the Solaris/x86 version of VirtualGL. This mainly affects OpenSolaris systems, on which Motif is not available. The libXm dependency was introduced in VirtualGL 2.0.x because that version of VirtualGL used libXt (X Intrinsics) to generate its popup configuration dialog. Java requires that libXm be loaded ahead of libXt, so it was necessary to explicitly link the VirtualGL faker library with libXm to guarantee that the libraries were loaded in the correct order. Since VirtualGL 2.1.x and later no longer use libXt, the binding to libXm could be safely removed on x86 systems. Note, however, that the libXm binding still has to be included on SPARC systems, because libGL on SPARC depends on libXmu, which depends on libXt. ------------------------------------------------------------------------------- [12] Fixed an issue with GeomView whereby attempting to resize the oldest window in a multi-window view would cause the Exceed version of vglclient to crash. ------------------------------------------------------------------------------- [13] When used to configure a Solaris server for GLX mode with open access (all users being able to access the local X server, not just members of the vglusers group), vglserver_config was incorrectly placing xhost entries at the top of /etc/dt/config/Xsetup instead of the bottom. This could have led to problems, since xhost is not guaranteed to be in the PATH until the bottom of that script. ------------------------------------------------------------------------------- [14] VirtualGL should now build and run cleanly on Ubuntu systems (and possibly other Debian derivatives, although only Ubuntu has been tested.) ------------------------------------------------------------------------------- [15] Certain applications call glFlush() thousands of times in rapid succession when rendering to the front buffer, even if no part of the 3D scene has changed. Sparing the gorey details, this caused the VirtualGL pipeline to become overloaded in certain cases, particularly on systems with fast pixel readback. On such systems, every one of the glFlush() commands resulted in VirtualGL drawing or sending a frame, even if the pixels in the frame were identical to those in the previous frame. This resulted in application delays of up to several minutes. This version of VGL includes a mechanism which ensures that no more than 100 glFlush() commands per second will actually result in an image being drawn or sent, and thus strings of rapid fire glFlush() commands can no longer overload the pipeline. ------------------------------------------------------------------------------- [16] vglserver_config should now work with openSUSE systems. ------------------------------------------------------------------------------- [17] It was discovered that 'xhost +LOCAL:' is a better method of enabling 3D X server access to all users of the VirtualGL server. This method works even if TCP connections are disabled in the X server (which is the case on recent Solaris and Linux distributions.) vglserver_config has thus been modified to use this method rather than 'xhost +localhost'. Also, since it is no longer necessary to set DisallowTCP=false in the GDM configuration file, vglserver_config now comments out this line if it exists. ------------------------------------------------------------------------------- [18] Fixed deadlock that occurred when using the VirtualGL Sun Ray plugin and ParaView to render multi-context datasets. ------------------------------------------------------------------------------- [19] Fixed an issue with Mac X11 2.1.x on OS X 10.5 "Leopard" whereby vglconnect would abort with "Could not open log file." X11 2.1.x uses a DISPLAY environment of the form /tmp/launch-*/:0, so it was necessary to remove everything up to the last slash before using this variable to build a unique vglclient log file path. ------------------------------------------------------------------------------- [20] Include libgefaker.so in the Solaris VirtualGL packages (oops). ------------------------------------------------------------------------------- [21] Added an interposed version of XSolarisGetVisualGamma() on SPARC servers so that applications that require gamma-corrected visuals can be fooled into thinking a gamma-corrected visual is available when in fact VirtualGL's software gamma correction mechanism is being used instead. ------------------------------------------------------------------------------- [22] Fixed a bug in the color conversion routines of TurboJPEG/mediaLib which caused the Solaris VirtualGL Client to display incorrect pixels along the right-most edge of the window when 2X or 4X subsampling was used. ------------------------------------------------------------------------------- =============================================================================== 2.1 =============================================================================== [1] Windows applications now link statically with OpenSSL to avoid dependency on msvcr71.dll that was introduced in the Win32 OpenSSL 0.9.8e DLLs. libeay32.dll and ssleay32.dll have been removed from the Windows package, since they are no longer needed. ------------------------------------------------------------------------------- [2] Implemented a new interposer library (libgefaker.so) which, when active, will interpose on getenv() and return NULL whenever an application queries the value of the LD_PRELOAD environment variable (and, on Solaris, the LD_PRELOAD_32 and LD_PRELOAD_64 environment variables.) This fools an application into thinking that no preloading is occurring. This feature is currently undocumented and is subject to change, but it can be activated in this release by passing an argument of -ge to vglrun. ------------------------------------------------------------------------------- [3] Extended VGL_SYNC functionality to include glXSwapBuffers() as well. This works around a couple of interaction issues between VirtualGL and AutoForm. The docs have been updated to explain this new functionality, to include an app recipe for AutoForm, and to include a warning about the performance consequences of using VGL_SYNC on a remote X connection. ------------------------------------------------------------------------------- [4] Included a short paragraph in the Chromium section of the docs explaining how to use VirtualGL on the render nodes to redirect Chromium's rendering from a window to a Pbuffer. ------------------------------------------------------------------------------- [5] Documented the patch revision necessary to make Exceed 2008 work properly with VirtualGL. Removed dire warnings. ------------------------------------------------------------------------------- [6] Added full-screen rendering mode to GLXspheres. ------------------------------------------------------------------------------- [7] Fixed regression (uninitialized variable) introduced by [2.1 beta1][7]. ------------------------------------------------------------------------------- [8] Fixed logic error that caused vglclient to fail when using OpenGL drawing and talking to a legacy (VGL 2.0 or earlier) server. ------------------------------------------------------------------------------- [9] Fixed regression bug that would cause VGL to deadlock when the user closed the application window while using the X11 Image Transport. ------------------------------------------------------------------------------- [10] Fixed issue whereby vglserver_config would fail to detect the presence of GLP because nm was not in the default PATH. ------------------------------------------------------------------------------- [11] When running VirtualGL on Enterprise Linux 5 using the 100 series nVidia drivers, a normal exit from the application will result in glXChannelRectSyncSGIX() being called after the VirtualGL hashes have already been destructed. glXChannelRectSyncSGIX() calls XFree() (an interposed function), and under certain circumstances, the interposed version of XFree() was trying (and failing) to access one of the previously destructed VirtualGL hashes. This has been fixed. ------------------------------------------------------------------------------- [12] vglclient -kill now works properly on Solaris systems. ------------------------------------------------------------------------------- [13] Fixed a timing snafu in and raised the run priority of Windows version of TCBench. This improves the accuracy of TCBench on Windows in high client CPU usage scenarios. ------------------------------------------------------------------------------- [14] Fixed an issue in the interactive mode of GLXSpheres whereby it would use 100% of the CPU when sitting idle. Added option to GLXSpheres to adjust the polygon count of the scene. ------------------------------------------------------------------------------- [15] Added app recipes for ANSYS and Cedega to docs. Added notes describing ANSYS and Pro/E duplicate glFlush() issue and workarounds. ------------------------------------------------------------------------------- [16] Changed default value for VGL_NPROCS to 1 (performance study indicates that there is no longer any measurable advantage to multi-threaded compression on modern hardware with VGL 2.1.) ------------------------------------------------------------------------------- [17] Added a -bench option to nettest to allow it to measure actual usage on a given Solaris or Linux network device. This was necessitated by accuracy issues with other open source network monitoring solutions. ------------------------------------------------------------------------------- [18] Change the way global hash tables are allocated in VGL in order to fix an interaction issue with applications that are built with MainWin. ------------------------------------------------------------------------------- [19] vglclient -kill now works properly on Mac systems. ------------------------------------------------------------------------------- [20] VirtualGL Configuration dialog now pops up properly when Caps Lock is active. ------------------------------------------------------------------------------- [21] If a previously destroyed GLX context is passed as an argument to glXMake{Context}Current(), the function now returns False instead of throwing a fatal exception. This was necessary to make a couple of different commercial applications work properly. ------------------------------------------------------------------------------- [22] There was some inconsistency regarding the interface for enabling lossless compression in the Sun Ray Image Transport. The User's Guide listed the interface as VGL_COMPRESS=srrgb, whereas the output of vglrun listed the interface as -c srlossless. VirtualGL 2.1rc only responded to the latter interface. It now responds to both interfaces, but VGL_COMPRESS=srrgb is the correct and documented interface. Any errant references to "srlossless" have been changed. ------------------------------------------------------------------------------- =============================================================================== 2.1 beta1 =============================================================================== [1] The VirtualGL Configuration Dialog is now written with FLTK instead of X Intrinsics. The dialog is also now handled by a separate process (vglconfig) to avoid application interaction issues. VirtualGL and vglconfig communicate changes to the configuration through shared memory. Note that this renders both the VGL_GUI_XTTHREADINIT configuration option and the corresponding application recipe for VisConcept unnecessary, and thus both have been removed. ------------------------------------------------------------------------------- [2] A new set of scripts (vglconnect and vgllogin) which automate the process of connecting to a VirtualGL server and using the VGL Image Transport (formerly "Direct Mode.") vglconnect wraps both vglclient and ssh. Through the use of command line arguments, vglconnect can be configured to forward either the X11 traffic or the VGL image traffic (or none or both) over the SSh connection. vglconnect invokes vgllogin on the server, which configures the server environment with the proper VGL_CLIENT and VGL_PORT values so that, once connected, all you should have to do is simply launch your application with vglrun. See the documentation for more information. ------------------------------------------------------------------------------- [3] vglclient includes many changes to support vglconnect. Rather than listen just on ports 4242 and 4243, the default behavior of vglclient is now to find a free listening port in the range of 4200-4299 (it tries 4242 and 4243 first, to maintain backward compatibility.) vglclient records its listening port in an X property that is later read by the VGL server. This feature allows more than one instance of vglclient to run on the same machine. The client can also detach completely from the console and run as a background daemon, exiting only when the X server resets or when vglclient is explicitly killed. Previous versions of VirtualGL required one instance of vglclient to talk to all X displays on the client machine, but this created problems in multi- user environments. Thus, VirtualGL 2.1 runs a separate instance of vglclient for each unique X display. This eliminates the need (as well as the ability) to run vglclient as a root daemon or as an NT service, and thus those features have been removed. Since vglclient is intended to be launched from vglconnect, Start Menu links to the VirtualGL Client are no longer included in the Windows package. See the documentation for more information about the changes to vglclient. ------------------------------------------------------------------------------- [4] The Windows VirtualGL package now includes an optimized version of PuTTY 0.60 which is used by the Windows version of vglconnect. This version of PuTTY provides significantly better performance when tunneling the VGL image stream than the stock version of PuTTY 0.60. ------------------------------------------------------------------------------- [5] A new script (vglserver_config) which automates the process of configuring the X display on the VirtualGL server to allow connections from VirtualGL. This script can also be used to configure GLP, for machines that support it. See the documentation for more information. ------------------------------------------------------------------------------- [6] The VirtualGL Unix packages now include a benchmark called "GLXSpheres", which is an open source look-alike of the old nVidia SphereMark demo. This program is meant to provide an alternative to GLXGears, since the images generated by the latter program contain too much solid color to be a good test of VirtualGL's image pipeline. GLXSpheres also includes modes which can be used to test VirtualGL's support of advanced OpenGL features, such as stereo, overlays, and color index rendering. ------------------------------------------------------------------------------- [7] VirtualGL now works properly with multi-process OpenGL applications that use one process to handle X events and another process to handle 3D rendering. In particular, this eliminates the window resize issues with Abaqus/CAE and with the Chromium readback SPU. ------------------------------------------------------------------------------- [8] Added an additional subsampling option to enable grayscale JPEG encoding. This provides additional bandwidth savings over and above chrominance subsampling, since grayscale throws away all chrominance pixels. It is potentially useful when working with applications that already render grayscale images (medical imaging, etc.) ------------------------------------------------------------------------------- [9] VirtualGL can now encode images as uncompressed RGB and send these uncompressed images through the VGL Image Transport. This has two benefits: (1) it eliminates the need to use the X11 Image Transport (AKA "Raw Mode") over a network, and (2) it provides a mode which supports sending lossless stereo image pairs to a stereo-enabled client. A gigabit or faster network is recommended when using RGB encoding. ------------------------------------------------------------------------------- [10] Anaglyphic stereo support. When VirtualGL detects that an application has rendered something in stereo, its default behavior is to try using quad- buffered stereo. But if the client or the image transport do not support quad-buffered stereo, then VirtualGL will fall back to using anaglyphic (red/cyan) stereo. This provides a quick & dirty way to visualize stereo data on clients that do not support "real" stereo rendering. VirtualGL 2.1 can also be configured to send only the left eye or right eye image from a stereo application. ------------------------------------------------------------------------------- [11] Changed the way VirtualGL spoils frames. In previous versions, VirtualGL would throw out any new frames if the queue was already busy compressing or sending a previous frame. In 2.1, VirtualGL instead throws out any undisplayed frames in the queue and promotes every new frame to the head of the queue. This assures that the last frame in a rendering sequence will always be displayed. ------------------------------------------------------------------------------- [12] Better integration with the Sun Ray plugin. In particular, many of the Sun Ray plugin's configuration options can now be configured through the VirtualGL Configuration dialog. ------------------------------------------------------------------------------- [13] The Mac client is now fully documented. ------------------------------------------------------------------------------- [14] Included mediaLib Huffman encoding optimizations contributed by Sun. This boosts the performance of VirtualGL on Solaris systems by as much as 30%. This, in combination with mediaLib 2.5, should allow the Solaris/x86 version of VirtualGL to perform the same as the Linux version, all else being equal. ------------------------------------------------------------------------------- [15] Lighting did not work properly for color index applications in prior versions of VGL. This has been fixed. ------------------------------------------------------------------------------- [16] Fixed an interaction issue with the 100 series nVidia drivers whereby applications that would request a single-buffered RGB visual would sometimes fail to obtain it through VirtualGL. The newer nVidia drivers don't always return an RGB 8/8/8 framebuffer config as the first in the list, so it was necessary for VirtualGL to specify GLX_RED_SIZE/GLX_GREEN_SIZE/GLX_BLUE_SIZE when obtaining a framebuffer config on the VirtualGL server's X display. ------------------------------------------------------------------------------- [17] Interframe comparison now works properly with stereo image pairs, and interframe comparison can now be disabled by using the VGL_INTERFRAME option. ------------------------------------------------------------------------------- =============================================================================== 2.0.1 =============================================================================== [1] The Linux and Solaris versions of VirtualGL are now statically linked with OpenSSL. This fixes an issue whereby a 3D application that uses OpenSSL could override VirtualGL's SSL bindings, thus causing VirtualGL to crash if SSL was enabled (VGL_SSL=1 or vglrun +s) and if the application's version of OpenSSL was incompatible with VirtualGL's. This, combined with [5] below, has the added benefit of allowing a single VirtualGL RPM to be used across multiple Linux platforms. It is no longer necessary to use a separate RPM for different versions of Enterprise Linux, SuSE, etc. ------------------------------------------------------------------------------- [2] librrfaker.so and libturbojpeg.so are now being linked with map files (AKA "anonymous version scripts" on Linux.) This is mainly a preventative measure, because it hides any non-global symbols in the shared objects, thus preventing those symbols from accidentally interposing on a symbol in an application or in another shared object. However, [2] was also necessary to prevent [1] from causing the opposite problem from the one it was intended to fix (without [2], VirtualGL could interpose on an application's SSL bindings rather than vice versa.) Linux users will need to upgrade to TurboJPEG 1.04.2 (or later) to get this fix. For other platforms, the fix is included in the VGL 2.0.1 packages. ------------------------------------------------------------------------------- [3] librr.so, rr.h, and the rrglxgears.c sample application have been removed from the distribution packages. These demonstrated a strawman API for creating a VGL movie player. The API was somewhat ill-conceived and broken, and it needs to be revisited. ------------------------------------------------------------------------------- [4] VirtualGL's custom version of glxinfo is now included in the distribution packages, under /opt/{SUNWvgl|VirtualGL}/bin. This version of glxinfo supports GLP on Sparc servers and also has the ability to query GLX FB Configs as well as X visuals. ------------------------------------------------------------------------------- [5] VGL now uses direct linking to link against libCrun on Solaris and static linking to link against libstdc++ on Linux. This is to prevent a problem similar to [1] in which an application that overrides the default C++ new and delete operators could force VGL to use its custom new and delete operators rather than the default operators provided in libCrun/libstdc++. Specifically, this addresses an issue whereby Pro/E would spuriously crash on multi-processor Solaris/Sparc machines. libstdc++ is statically linked on Linux because Linux has no equivalent of Direct linking, but static linking against libstdc++ has the added benefit of allowing one VirtualGL RPM to be used across multiple Linux platforms. ------------------------------------------------------------------------------- [6] Eliminated the use of the X DOUBLE-BUFFER extension in Raw Mode and replaced it instead with X Pixmap drawing. Previously, VGL would try to use the MIT-SHM extension to draw images in Raw Mode, then it would fall back to using the X DOUBLE-BUFFER extension if MIT-SHM was not available or could not be used (such as on a remote X connection), then it would fall back to single buffered drawing if DOUBLE-BUFFER could not be used. However, the DOUBLE-BUFFER extension crashes on some Sun Ray configurations (specifically Xinerama configurations), so VGL 2.0 disabled the use of DOUBLE-BUFFER on all Sun Ray configurations to work around this issue. [6] replaces that hack with a more solid fix that ensures that Raw Mode is always double buffered, even if the X DOUBLE-BUFFER extension is not available or is not working. Using pixmap drawing performs the same as using DOUBLE-BUFFER. This generally only affects cases in which Raw Mode is used to transmit images over a network. When Raw Mode is used to transmit images to an X server on the same machine, it is almost always able to use the MIT-SHM X extension. ------------------------------------------------------------------------------- [7] Numerous doc changes, including: -- Restructuring docs to create a more clear delineation between what needs to be done on the server and what needs to be done on the client. -- (Re-)added instructions for how to use VGL with a direct X11 connection, since it has become apparent that that configuration is necessary in some cases. -- Changed procedure for doing Direct Mode SSh tunneling. The previous procedure would not have worked if multiple users were trying to tunnel Direct Mode from the same server. The new procedure requires running a program (see [8] below) which prints out an available TCP port and using that port on the server end of the SSh tunnel. -- Added app recipe for ANSA 12.1.0 -- Added procedures for using VGL with TurboVNC and for using TurboVNC in general -- Added information for using VGL with GLP (which, unbelievably, was never really included in the VGL docs. Major oversight on our part.) ------------------------------------------------------------------------------- [8] Modified the 'nettest' program such that it finds a free TCP port number and prints out the port number to the console when you pass an argument of '-findport' to the program. ------------------------------------------------------------------------------- [9] Fixed glXGetProcAddressARB() and glXGetProcAddress() on Sparc platforms. Due to an erroneous #ifdef statement, these interposed functions were not getting compiled into VirtualGL when VirtualGL was built with Sun OpenGL on Sparc platforms. This, combined with [16], allows Java2D apps running in VirtualGL on Sparc platforms to successfully use the OpenGL pipeline to perform Java2D rendering. ------------------------------------------------------------------------------- [10] Sun OpenGL 120812-15 (and later) now includes a SwapBuffers() command for GLP, which VirtualGL will now use if available. Some applications that use front buffer drawing (Pro/E and UGS/NX v4, specifically) did not work properly with VirtualGL 2.0 in GLP mode because the back buffer in the double-buffered Pbuffer was not being swapped. ------------------------------------------------------------------------------- [11] Some applications call XListExtensions() rather than XQueryExtension() to probe for the existence of the GLX extension. Such applications, when displaying to VNC or another X server that lacks the GLX extension, would fail. VirtualGL now interposes on XListExtensions() and makes sure that the GLX extension is always reported as present. This fixes a specific issue with UGS/NX v4 whereby NX, if run with VirtualGL and TurboVNC, would refuse to use OpenGL to perform its 3D rendering. ------------------------------------------------------------------------------- [12] VGL will now print a warning if the GLX context it obtains on the server's display is indirect. This will occur on Solaris if the framebuffer device permissions do not allow read/write access for the current user. ------------------------------------------------------------------------------- [13] Normally, if X11 drawing is the default in the VGL client (which is the case on non-Sparc systems, on Sparc systems with 2D framebuffers, or on any system if 'vglclient' is invoked with the '-x' argument), then the VGL client will only use OpenGL for drawing stereo frames. [13] fixes a bug whereby the VGL client would not switch back to X11 drawing (if X11 drawing was the default) after the app ceased rendering in stereo. ------------------------------------------------------------------------------- [14] You can now specify a listen port number of 0 to make the VGL client pick an available port. This is of only marginal use at the moment, since there is no way to make the server automatically connect to that port. But we got this for free as a result of [8]. ------------------------------------------------------------------------------- [15] Fixed an issue that was causing the multi-threaded tests in rrfakerut to crash some of the nVidia 7xxx series drivers. rrfakerut should now run cleanly on the 7xxx series, but the multi-threaded tests still cause the 8xxx series drivers to crash & burn, and they cause the 9xxx series drivers to generate incorrect pixels. Further investigation is needed. ------------------------------------------------------------------------------- [16] Fixed two issues to make Java2D on Solaris/Sparc properly detect that OpenGL is available: -- Made glXChooseFBConfig() ignore the GLX_VISUAL_ID attribute. That attribute doesn't really have any meaning in VGL, and passing it through to the server's X display was causing Java2D apps to fail. -- Made glXGetFBConfigAttrib(GLX_DRAWABLE_TYPE) always return GLX_PIXMAP_BIT|GLX_PBUFFER_BIT|GLX_WINDOW_BIT so that Java2D apps would properly detect that window rendering was available in VirtualGL. ------------------------------------------------------------------------------- [17] vglrun will now print usage information if you fail to provide an application command to run. ------------------------------------------------------------------------------- [18] Upgraded the OpenSSL DLL included with the Windows VirtualGL client to OpenSSL 0.9.8d (previously 0.9.8c.) ------------------------------------------------------------------------------- [19] VirtualGL now buffers the output from the profiler class so that the profiling output from multiple compression threads doesn't intermingle when redirected to a log file. ------------------------------------------------------------------------------- [20] If the DISPLAY environment variable is unset on the VirtualGL server, vglrun will now set it automatically to {ssh_client}:0.0 (where {ssh_client} = the IP address of the SSh client.) If DISPLAY is set to localhost:n.0 or `hostname`:n.0, VGL assumes that SSh X11 forwarding is in use and sets VGL_CLIENT={ssh_client}:0.0 instead (without modifying DISPLAY.) vglrun prints a warning that it is doing this. You must still explicitly set VGL_CLIENT or DISPLAY if you are doing something exotic, such as tunneling VGL's client/server connection through SSh or displaying to an X server with a display number other than 0. But this fix should eliminate the need to set VGL_CLIENT and DISPLAY in most cases. Note that the Sun Ray plugin also reads the VGL_CLIENT environment variable, so if you are connecting to the VirtualGL server from a Sun Ray server using SSh X11 forwarding, this eliminates the need to explicitly set VGL_CLIENT in that case as well. ------------------------------------------------------------------------------- [21] Implement the "spoil last frame" algorithm in the Sun Ray plugin whenever VGL reads back/compresses/sends the framebuffer in response to a glFlush(). This fixes issues with slow model regeneration and zoom operations in Pro/E when using the Sun Ray plugin. Normally, the Sun Ray plugin uses the "spoil first frame" algorithm, which causes the frames in the queue to be discarded whenever a new frame is received. But this algorithm requires that the framebuffer be read back for every frame, even if that frame is ultimately going to be spoiled. This causes problems with applications (Pro/E, specifically) that call glFlush() frequently when doing front buffer drawing. Each of these glFlush() calls triggers a framebuffer readback in VirtualGL, which can cause significant interaction delays in the application. The "spoil last frame" algorithm discards the newest frame if the queue is currently busy, so when this algorithm is used, most of the duplicate frames triggered by the repeated glFlush() events are discarded with no framebuffer readback (and thus very little overhead.) This fix does not affect Direct Mode and Raw Mode, since those modes already use the "spoil last frame" algorithm in all cases. ------------------------------------------------------------------------------- [22] Added VGL_INTERFRAME option, which, when set to 0, will disable interframe image comparison in Direct Mode. This is necessary to work around an interaction issue between VGL and Pro/E Wildfire v3 which leads to slow performance when zooming in or out on the Pro/E model. ------------------------------------------------------------------------------- [23] Added VGL_LOG option, which can be used to redirect the console output from the VGL faker to a file instead of stderr. ------------------------------------------------------------------------------- [24] The mediaLib implementation of TurboJPEG and the mediaLib-accelerated gamma correction code have been modified slightly to avoid calls to mediaLib functions that wrap memalign() and free(). This works around an interaction issue with Pro/E v3 (and potentially with other applications that use their own custom memory allocators.) ------------------------------------------------------------------------------- =============================================================================== 2.0 =============================================================================== [1] Included libturbojpeg.dylib in Mac package (so that installing the TurboJPEG package is no longer necessary unless you want to rebuild VGL from source.) ------------------------------------------------------------------------------- [2] Included TCBench and NetTest in the Mac package ------------------------------------------------------------------------------- [3] Internal gamma correction system added. This was a last-minute feature addition to address the issue that there was no way to gamma correct applications that were remotely displayed to non-Sparc clients. Sparc users are accustomed to OpenGL applications being gamma corrected by default, so VirtualGL now mimics this behavior whenever it is running on a Sparc server, even if the client machine is not a Sparc machine. The behavior of the VGL_GAMMA environment variable has changed as follows: VGL_GAMMA=1 (or vglrun +g): Enable gamma correction using the best available method. If displaying to a Sparc X server which has gamma corrected visuals, try to use those gamma- corrected visuals. Otherwise, enable VGL's internal gamma correction system with a gamma correction factor of 2.22. This is the default when running applications on Sparc VirtualGL servers. VGL_GAMMA=0 (or vglrun -g): Do not use gamma-corrected visuals (even if available on the X server) and do not use VGL's internal gamma correction system. This is the default when running applications on non-Sparc VirtualGL servers. VGL_GAMMA={f} (or vglrun -gamma {f}): Do not use gamma-corrected visuals (even if available on the client), but enable VGL's internal gamma correction system with a gamma correction factor of {f}. The internal gamma correction system uses a few percent more CPU cycles than just compressing the images alone, but this has not been shown to affect the overall performance of VGL by a measurable amount. See the "VGL_GAMMA" entry in Chapter 18 of the docs for more info. ------------------------------------------------------------------------------- [4] Increased the size of the TurboJPEG compression holding buffer to account for rare cases in which compressing very high-frequency image tiles (specifically parts of the 3D Studio MAX Viewperf test) with high quality levels (specifically Q99 or above) would produce JPEG images that are larger than the uncompressed input. Linux users will need to upgrade to TurboJPEG 1.04 (or later) to get this fix. For other platforms, the fix is included in the VGL 2.0 packages. ------------------------------------------------------------------------------- [5] Minor documentation changes, including a change to the recommended OpenGL patches for Sparc VGL servers and an application recipe for SDRC I-deas Master Series. ------------------------------------------------------------------------------- [6] Check for exceptions in the new operator to prevent VGL from dying ungracefully in out-of-memory situations. ------------------------------------------------------------------------------- [7] Fixed a bug in the multi-threaded compression code whereby it would use too much memory to hold the image tiles for the second and subsequent compression threads. This led to memory exhaustion if the tile size was set to a low value (such as 16x16 or 32x32.) ------------------------------------------------------------------------------- =============================================================================== 2.0 beta3 =============================================================================== [1] Solaris packages now include the OpenSSL shared libraries (libssl and libcrypto), thus eliminating the need to install Blastwave OpenSSL on Solaris 9 and prior. ------------------------------------------------------------------------------- [2] Packages now include a convenience script (vglgenkey) which will generate an xauth key for the server's X display. This provides a more secure way of granting access to the server's X display than using 'xhost +localhost'. ------------------------------------------------------------------------------- [3] Built and packaged the VirtualGL client for Mac OS/X (Intel only.) This package is currently undocumented and includes only the VGL client (no server components), but its usage should be self explanatory for those familiar with VGL on other platforms (it should work very similarly to the Linux version.) ------------------------------------------------------------------------------- [4] Normally, when running in Raw Mode, VirtualGL will try to use the MIT-SHM X extension to draw images. If MIT-SHM is not available or doesn't work (which would be the case if the X connection is remote), then VGL will try to use the X DOUBLE-BUFFER extension. Failing that, it will fall back to single buffered drawing. In a Sun Ray environment, the X DOUBLE-BUFFER extension is unstable when Xinerama is used. DOUBLE-BUFFER doesn't really double buffer in a Sun Ray environment anyhow, so this release of VirtualGL disables the use of DOUBLE-BUFFER if it detects that it is running in a Sun Ray environment. ------------------------------------------------------------------------------- [5] Reformatted documentation using Deplate (http://deplate.sourceforge.net.) Numerous other doc changes as well. ------------------------------------------------------------------------------- [6] Extended VGL to support the full GLX 1.4 spec (this involved simply creating a function stub for glXGetProcAddress(), but it was necessary to make J2D work under Java 6.) ------------------------------------------------------------------------------- [7] Changed key sequence for the popup configuration dialog (again) to CTRL-SHIFT-F9 to avoid a conflict with Solaris Common Desktop Environment ------------------------------------------------------------------------------- [8] VGL no longer tries to switch to Direct Mode automatically whenever a stereo frame is rendered. Instead, if running in Raw Mode, it warns that stereo doesn't work in Raw Mode and proceeds to send only the left eye buffer. ------------------------------------------------------------------------------- =============================================================================== 2.0 beta2 =============================================================================== [1] Added a -dl option to vglrun, which inserts a new libdlfaker.so interposer ahead of VirtualGL in the link order. libdlfaker.so intercepts dlopen() calls from an application and, if the application is trying to dlopen() libGL, librrfaker.so (VirtualGL) is dlopen()ed instead. This allows VirtualGL to be used seamlessly with applications that do not dynamically link against libGL and do not provide any sort of override mechanism. See the documentation for a list of known applications that require the -dl option. ------------------------------------------------------------------------------- [2] Bug fixed: Lazy loading of OpenSSL on Solaris now works properly, so that OpenSSL doesn't have to be installed unless VirtualGL is being used in SSL mode. ------------------------------------------------------------------------------- [3] Added "application recipes" section to docs ------------------------------------------------------------------------------- [4] Tweaked FBX library to improve performance of VGL when used with NX and FreeNX. ------------------------------------------------------------------------------- [5] Bug fixed: TurboJPEG for Solaris did not properly handle 4:2:0 decompression if no pixel format conversion was required. ------------------------------------------------------------------------------- [6] Bug fixed: Minor (and somewhat esoteric) visual matching bug in GLP mode ------------------------------------------------------------------------------- [7] Bug fixed: In GLX mode, VGL did not properly handle FB configs that had no associated X Visual type. ------------------------------------------------------------------------------- [8] Stereo now works on Solaris/Sparc servers using kfb framebuffers in both GLP and GLX modes. Sun OpenGL patch 120812-12 (or later) and KFB driver patch 120928-10 (or later) are required. ------------------------------------------------------------------------------- [9] Bug fixed: In GLX mode, some of the "real" GLX functions that VirtualGL calls on the server's X display will in turn call glXGetClientString(), glXQueryExtensions(), etc. to list extensions available on the server's X display. VirtualGL interposes on these functions and returns its own extension strings rather than the "real" strings from the server's X display, and this caused problems under certain circumstances. These interposed functions will now detect whether they are being called from within another GLX function and will return the "real" extension strings for the server's X display if so. ------------------------------------------------------------------------------- [10] Generally friendlier error messages ------------------------------------------------------------------------------- [11] Bug fixed: Destroying an overlay window would cause VGL to seg fault. ------------------------------------------------------------------------------- [12] Changed configuration dialog popup key sequence to CTRL-SHIFT-F12 to avoid conflict with KDE. ------------------------------------------------------------------------------- [13] Added VGL_GUI_XTHREADINIT environment variable to allow one to disable VGL's use of XtToolkitThreadInitialize(). Rarely, a multi-threaded Motif application relies on its own locking mechanisms and will deadlock if Motif's built-in application and process locks are enabled. Thus far, the only known application that this affects is VisConcept. Set VGL_GUI_XTHREADINIT to 0 to prevent VisConcept from deadlocking when the VGL config dialog is activated. ------------------------------------------------------------------------------- [14] VirtualGL will no longer allow a non-TrueColor stereo visual to be selected, because such visuals won't work with the VGL client. Color index (PseudoColor) rendering requires Raw Mode, but stereo requires Direct Mode, and thus VirtualGL cannot transmit PseudoColor images in stereo. ------------------------------------------------------------------------------- [15] VirtualGL will now automatically select Raw Mode if it detects that it is running on a "local" display (i.e. ":n.0", "unix:n.0", etc., but not "localhost:n.0") This allows users of X proxies such as Sun Ray, TurboVNC, NX, etc. to run VirtualGL without having to pass an argument of -c 0 to vglrun. "localhost:n.0" is not considered a "local" display, and neither is "`hostname`:n.0", because display connections tunneled through SSh will have a display name that takes on one of those forms. ------------------------------------------------------------------------------- [16] The VirtualGL client for Solaris/Sparc will now automatically detect if it is running on a framebuffer that uses software OpenGL and will default to using X11 drawing in that case. Otherwise, if hardware-accelerated OpenGL is available, then the VGL client for Solaris/Sparc will try to use OpenGL as the default drawing method. This improves performance on XVR-100 and its ilk as well as working around a bug in the OGL implementation on XVR-100 (see CR 6408535.) Non-Sparc clients still use X11 drawing by default, except when drawing stereo frames. ------------------------------------------------------------------------------- [17] Worked around some issues in Sun OpenGL which manifested themselves in instability of the Sparc VirtualGL client when drawing large numbers of simultaneous frames from different servers. ------------------------------------------------------------------------------- [18] Expanded N1 GridEngine hooks in vglrun so that the VGL_CLIENT, VGL_COMPRESS, VGL_PORT, VGL_SSL, VGL_GLLIB, and VGL_X11LIB environment variables will be automatically passed to vglrun by N1GE. All other variables must be explicitly passed by using the -v option to qsub. ------------------------------------------------------------------------------- [19] Bug fixed: Lazy loading of OpenGL now works properly on Solaris clients, so vglclient can be run on machines that don't have OpenGL installed. ------------------------------------------------------------------------------- [20] For some reason, popping up the VGL configuration dialog when running Java apps caused VGL's Xt resource string to be ignored, which would cause the widgets to be displayed incorrectly. So VirtualGL now explicitly specifies the resources when creating each widget and doesn't rely on the use of a resource string. -------------------------------------------------------------------------------