sdl

FORK: Simple Directmedia Layer
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README-windows.md (2362B)

      1 Windows
      2 ================================================================================
      3 
      4 ================================================================================
      5 OpenGL ES 2.x support
      6 ================================================================================
      7 
      8 SDL has support for OpenGL ES 2.x under Windows via two alternative 
      9 implementations. 
     10 The most straightforward method consists in running your app in a system with 
     11 a graphic card paired with a relatively recent (as of November of 2013) driver 
     12 which supports the WGL_EXT_create_context_es2_profile extension. Vendors known 
     13 to ship said extension on Windows currently include nVidia and Intel.
     14 
     15 The other method involves using the ANGLE library (https://code.google.com/p/angleproject/)
     16 If an OpenGL ES 2.x context is requested and no WGL_EXT_create_context_es2_profile
     17 extension is found, SDL will try to load the libEGL.dll library provided by
     18 ANGLE.
     19 To obtain the ANGLE binaries, you can either compile from source from
     20 https://chromium.googlesource.com/angle/angle or copy the relevant binaries from
     21 a 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     
     29 If you compile ANGLE from source, you can configure it so it does not need the
     30 d3dcompiler_* DLL at all (for details on this, see their documentation). 
     31 However, by default SDL will try to preload the d3dcompiler_46.dll to
     32 comply with ANGLE's requirements. If you wish SDL to preload d3dcompiler_43.dll (to
     33 support Windows XP) or to skip this step at all, you can use the 
     34 SDL_HINT_VIDEO_WIN_D3DCOMPILER hint (see SDL_hints.h for more details).
     35 
     36 Known 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      
     42 Vulkan Surface Support
     43 ==============
     44 
     45 Support 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.