Roland Scheidegger
19604d30e1
If the immutable compressed texture didn't have the full mip pyramid, this didn't work, because it tried to generate mip levels for non-existing levels. _mesa_prepare_mipmap_level() would correctly handle this by returning FALSE if the mip level didn't exist, however we actually created the non-existing mip level right before that because we used _mesa_get_tex_image() before calling _mesa_prepare_mipmap_level(). It would then proceed to crash (we allocated the mip level, which is a bad idea on an immutable texture, but didn't initialize the values, leading to assertion failures or segfaults). Fix this by using _mesa_select_tex_image() instead and call it after _mesa_prepare_mipmap_level(), as that function will allocate missing mip levels for non-immutable textures already. This fixes a (2 year old) crash with astromenace which was hack-fixed in ubuntu packages instead: http://bugs.debian.org/718680 (I guess most apps do full mip chains - I believe this app not doing it is actually unintentional, always one level less than full mip chain...). Cc: "10.6 11.0" <mesa-stable@lists.freedesktop.org> Reviewed-by: Brian Paul <brianp@vmware.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 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.