Chad Versace
ce8639a766
Fixes inconsistent failure of gles2conform/GL2Tests/glUniform/glUniform.test under gnome-shell. What follows is a description of the bug and its fix. When intel_update_renderbuffers() allocates a miptree for a winsys renderbuffer, it propagates the renderbuffer's format to become also the miptree's format. If the winsys color buffer format is SARGB, then, in the first call to eglMakeCurrent, intel_gles3_srgb_workaround() changes the renderbuffer's format to ARGB. That is, it changes the format from sRGB to non-sRGB. However, it changes the renderbuffer's format *after* intel_update_renderbuffers() has allocated the renderbuffer's miptree. Therefore, when eglMakeCurrent returns, the miptree format (SARGB) differs from the renderbuffer format (ARGB). If the X server reallocates the color buffer, intel_update_renderbuffers() will create a new miptree for the renderbuffer. The new miptree's format (ARGB) will differ from old miptree's format (SARGB). This mismatch between old and new miptrees causes bugs. Fix the bug by moving intel_gles3_srgb_workaround() to occur *before* intel_update_renderbuffers(). CC: "9.2" <mesa-stable@lists.freedesktop.org> Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=67934 Signed-off-by: Chad Versace <chad.versace@linux.intel.com>
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 osmesa mesagdi to build classic mesa Windows GDI drivers; or 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. 1) install python 2.7 2) install scons (latest) 3) install mingw, flex, and bison 4) install libxml2 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get libxml2-python-2.9.1.win-amd64-py2.7.exe 5) install pywin32 from here: http://www.lfd.uci.edu/~gohlke/pythonlibs get pywin32-218.4.win-amd64-py2.7.exe 6) install git 7) download mesa from git see http://www.mesa3d.org/repository.html 8) 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.