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The Android framework requires support for EGLConfigs with HAL_PIXEL_FORMAT_RGBX_8888 and HAL_PIXEL_FORMAT_RGBA_8888. Even though all RGBX formats are disabled on gen9 by brw_surface_formats.c, the new configs work correctly on Broxton thanks to _mesa_format_fallback_rgbx_to_rgba(). On GLX, this creates no new configs, and therefore breaks no existing apps. See in-patch comments for explanation. I tested with glxinfo and glxgears on Skylake. On Wayland, this also creates no new configs, and therfore breaks no existing apps. (I tested with mesa-demos' eglinfo and es2gears_wayland on Skylake). The reason differs from GLX, though. In dri2_wl_add_configs_for_visual(), the format table contains only B8G8R8X8, B8G8R8A8, and B5G6B5; and dri2_add_config() correctly matches EGLConfig to format by inspecting channel masks. On Android, in Chrome OS, I tested this on a Broxton device. I confirmed that the Google Play Store's EGLSurface used HAL_PIXEL_FORMAT_RGBA_8888, and that an Asteroid game's EGLSurface used HAL_PIXEL_FORMAT_RGBX_8888. Both apps worked well. (Disclaimer: I didn't test this patch on Android with Mesa master. I backported this patch series to an older Android branch). Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Emil Velikov <emil.velikov@collabora.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 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.