Topi Pohjolainen
396c69bf5d
Fixes GL2ExtensionTests/egl_image_external/TestSimpleUnassociated.test which is part of gles2/3 conformance suite. Here image external textures are switched to be treated the same as 2D textures. These can be associated with the fallback texture providing fixed sample values of (0, 0, 0, 1). The OES_EGL_image_external spec says: "Sampling an external texture which is not associated with any EGLImage sibling will return a sample value of (0,0,0,1)." "External textures cannot be used with TexImage2D, TexSubImage2D, CompressedTexImage2D, CompressedTexSubImage2D, CopyTexImage2D, or CopyTexSubImage2D, and an INVALID_ENUM error will be generated if this is attempted." And quoting Chad: "That's enforced in _mesa_TexImage*() by calling legal_teximage_target(), and enforced in _mesa_TexSubImage*() by calling legal_texsubmimage_target(). Each of the legal_tex*image_target() functions reject external textures. Therefore, allowing GL_TEXTURE_EXTERNAL_OES in store_texsubimage() won't violate the above spec quote. I think it's safe to allow GL_TEXTURE_EXTERNAL_OES in store_texsubimage(), as long as the texture has only a single plane. Luckily, that's the only type of external textures that Mesa currently supports." CC: Chad Versace <chad.versace@linux.intel.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Topi Pohjolainen <topi.pohjolainen@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.