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Creating/recreating the strings in eglQueryString() is extra work and isn't thread-safe, as exhibited by shader-db's run.c using libepoxy. Multiple threads in run.c call eglReleaseThread() around the same time. libepoxy calls eglQueryString() to determine whether eglReleaseThread() exists, and our EGL implementation passes a pointer to the version string to libepoxy while simultaneously overwriting the string, leading to a failure in libepoxy. Moreover, the EGL spec says (emphasis mine): "eglQueryString returns a pointer to a *static*, zero-terminated string" This patch moves some auxiliary functions from eglmisc.c to eglapi.c so that they may be used to create the extension, API, and version strings once during eglInitialize(). The auxiliary functions are renamed from _eglUpdate* to _eglCreate*, and some checks made unnecessary by calling the functions from eglInitialize() are removed. Reviewed-by: Chad Versace <chad.versace@intel.com> |
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| CleanSpec.mk | ||
| common.py | ||
| configure.ac | ||
| install-gallium-links.mk | ||
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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 to build classic osmesa driver; 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. - 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 http://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.