kc3-lang/angle/extensions/EGL_ANGLE_keyed_mutex.txt

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  Commit

• Author : Jeff Muizelaar
  Date : 2014-10-27 14:10:35
  Hash : d17c016b
  Message : Add support for RESOURCE_MISC_SHARED_KEYEDMUTEX Change-Id: I225f38b4616ac47e690dccbcb67074fedc571d61 Reviewed-on: https://chromium-review.googlesource.com/225642 Reviewed-by: Geoff Lang <geofflang@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org>

• extensions/EGL_ANGLE_keyed_mutex.txt

• Name
  
      ANGLE_keyed_mutex
  
  Name Strings
  
      EGL_ANGLE_keyed_mutex
  
  Contributors
  
      Jeff Muizelaar
  
  Contacts
  
      Jeff Muizelaar, Mozilla (jmuizelaar 'at' mozilla.org)
  
  Status
  
      Implemented in ANGLE.
  
  Version
  
      Version 1, Oct 29, 2014
  
  Number
  
      EGL Extension #??
  
  Dependencies
  
      Requires the EGL_ANGLE_query_surface_pointer extension.
  
      This extension is written against the wording of the EGL 1.4
      Specification.
  
  Overview
  
      Some EGL implementations generate EGLSurface handles that are
      backed by Direct3D 11 2D textures.  This extension allows
      obtaining the IDXGIKeyedMutex for such EGL surfaces.
  
  New Types
  
      None
  
  New Procedures and Functions
  
      None
  
  New Tokens
  
      Accepted in the <attribute> parameter of eglQuerySurfacePointerANGLE:
  
          EGL_DXGI_KEYED_MUTEX_ANGLE                       0x33A2
  
      Add to table 3.5, "Queryable surface attributes and types":
  
          Attribute                              Type      Description
          ---------                              ----      -----------
          EGL_DXGI_KEYED_MUTEX_ANGLE             pointer   IDXGIKeyedMutex
  
      Add before the last paragraph in section 3.5, "Surface attributes":
  
          "Querying EGL_DXGI_KEYED_MUTEX_ANGLE returns a IDXGIKeyedMutex, or NULL
          if a keyed mutex for the surface is not available.  The keyed mutex
          must be queried using eglQuerySurfaceAttribPointerANGLE.  Keyed Mutexes
          are only available from EGL surfaces backed by Direct3D 11 surfaces.
          Before using the keyed mutex, ensure that all rendering to the EGLSurface
          with EGL client APIs has completed."
  
  Issues
  
  Revision History
  
      Version 1, 2014/10/29 - first draft.