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If an EGLSurface is created, made current and destroyed, and then a second EGLSurface is created. Then the second malloc in driCreateNewDrawable may return the same pointer address the first surface's drawable had. Consequently, when dri_make_current later tries to determine if it should update the texture_stamp it compares the surface's drawable pointer against the drawable in the last call to dri_make_current and assumes it's the same surface (which it isn't). When texture_stamp is left unset, then dri_st_framebuffer_validate thinks it has already called update_drawable_info for that drawable, leaving it unvalidated and this is when bad things starts to happen. In my case it manifested itself by the width and height of the surface being unset. This is fixed this by setting the pointer to NULL before freeing the surface. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=106126 Signed-off-by: Johan Klokkhammer Helsing <johan.helsing@qt.io> Signed-off-by: Marek Olšák <marek.olsak@amd.com> Cc: 18.0 18.1 <mesa-stable@lists.freedesktop.org>
File: docs/README.WIN32 Last updated: 21 June 2013 Quick Start ----- ----- Windows drivers are build with SCons. Makefiles or Visual Studio projects are no longer shipped or supported. Run scons libgl-gdi to build gallium based GDI driver. This will work both with MSVS or Mingw. Windows Drivers ------- ------- At this time, only the gallium GDI driver is known to work. Source code also exists in the tree for other drivers in src/mesa/drivers/windows, but the status of this code is unknown. Recipe ------ Building on windows requires several open-source packages. These are steps that work as of this writing. - install python 2.7 - install scons (latest) - install mingw, flex, and bison - install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get pywin32-218.4.win-amd64-py2.7.exe - install git - download mesa from git see https://www.mesa3d.org/repository.html - run scons General ------- After building, you can copy the above DLL files to a place in your PATH such as $SystemRoot/SYSTEM32. If you don't like putting things in a system directory, place them in the same directory as the executable(s). Be careful about accidentially overwriting files of the same name in the SYSTEM32 directory. The DLL files are built so that the external entry points use the stdcall calling convention. Static LIB files are not built. The LIB files that are built with are the linker import files associated with the DLL files. The si-glu sources are used to build the GLU libs. This was done mainly to get the better tessellator code. If you have a Windows-related build problem or question, please post to the mesa-dev or mesa-users list.