README-windows.md (2362B)
1Windows 2================================================================================ 3 4================================================================================ 5OpenGL ES 2.x support 6================================================================================ 7 8SDL has support for OpenGL ES 2.x under Windows via two alternative 9implementations. 10The most straightforward method consists in running your app in a system with 11a graphic card paired with a relatively recent (as of November of 2013) driver 12which supports the WGL_EXT_create_context_es2_profile extension. Vendors known 13to ship said extension on Windows currently include nVidia and Intel. 14 15The other method involves using the ANGLE library (https://code.google.com/p/angleproject/) 16If an OpenGL ES 2.x context is requested and no WGL_EXT_create_context_es2_profile 17extension is found, SDL will try to load the libEGL.dll library provided by 18ANGLE. 19To obtain the ANGLE binaries, you can either compile from source from 20https://chromium.googlesource.com/angle/angle or copy the relevant binaries from 21a recent Chrome/Chromium install for Windows. The files you need are: 22 23 * libEGL.dll 24 * libGLESv2.dll 25 * d3dcompiler_46.dll (supports Windows Vista or later, better shader compiler) 26 or... 27 * d3dcompiler_43.dll (supports Windows XP or later) 28 29If you compile ANGLE from source, you can configure it so it does not need the 30d3dcompiler_* DLL at all (for details on this, see their documentation). 31However, by default SDL will try to preload the d3dcompiler_46.dll to 32comply with ANGLE's requirements. If you wish SDL to preload d3dcompiler_43.dll (to 33support Windows XP) or to skip this step at all, you can use the 34SDL_HINT_VIDEO_WIN_D3DCOMPILER hint (see SDL_hints.h for more details). 35 36Known Bugs: 37 38 * SDL_GL_SetSwapInterval is currently a no op when using ANGLE. It appears 39 that there's a bug in the library which prevents the window contents from 40 refreshing if this is set to anything other than the default value. 41 42Vulkan Surface Support 43============== 44 45Support for creating Vulkan surfaces is configured on by default. To disable it change the value of `SDL_VIDEO_VULKAN` to 0 in `SDL_config_windows.h`. You must install the [Vulkan SDK](https://www.lunarg.com/vulkan-sdk/) in order to use Vulkan graphics in your application.