Martin Gräßlin 388edab9e5 Add support for OpenGL in VirtualBox ... OpenGL is properly working if there is a direct rendering context. If LIBGL_ALWAYS_INDIRECT is set VirtualBox falls back to Mesa's software rasterizer. So in order to get OpenGL the driver is now whitelisted in the opengltest. GLPlatform is extended to recognize the VirtualBox driver and has new methods to report whether it is a virtual machine and VirtualBox. The detection is rather limited as we don't get access to the underlying hardware, so we do not know whether the features are really supported. We need to trust the driver here in announcing the right extensions. The driver does not provide glxQueryDrawable although it is part of GLX 1.3. A hack is added in the glxbackend to set the function pointer to NULL. This can unfortunately not be done in glxResolveFunctions() as QueryDrawable seems not to be provided by an extension (at least not listed in the OpenGL registry) and getProcAddress resolves a function but it only prints an OpenGL Warning to stderr. As a note: the driver reports that it is using XSHM for GLX_EXT_texture_from_pixmap. REVIEW: 106821		2012-10-25 11:27:28 +02:00
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CMakeLists.txt	more helper apps to libexec	2010-05-03 15:02:26 +00:00
opengltest.cpp	Add support for OpenGL in VirtualBox	2012-10-25 11:27:28 +02:00