kc3-lang/angle/extensions/EGL_ANGLE_swap_with_frame_token.txt

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  Commit

• Author : Jamie Madill
  Date : 2019-11-04 15:20:18
  Hash : c898ec1a
  Message : Add EGL GGP extensions. This CL adds two new extensions: * EGL_ANGLE_ggp_stream_descriptor: Introduces a new attribute to CreateWindowSurface. Allows the app to pass in a stream descriptor to VkCreateSurfaceKHR. Mirrors VK_GGP_stream_descriptor_surface. * EGL_ANGLE_swap_with_frame_token: Introduces a new function 'eglSwapBuffersWithFrameTokenANGLE'. This allows the app to pass a GGP frame token down to vkQueuePresentKHR. Mirrors VK_GGP_frame_token. Bug: angleproject:4078 Change-Id: I4313ac4c264e68999905049f661bc64b44f72fab Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1897315 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Cody Northrop <cnorthrop@google.com>

• extensions/EGL_ANGLE_swap_with_frame_token.txt

• Name
  
      ANGLE_swap_with_frame_token
  
  Name Strings
  
      EGL_ANGLE_swap_with_frame_token
  
  Contributors
  
      Jamie Madill
  
  Contacts
  
      Jamie Madill, Google Inc. (jmadill 'at' google.com)
  
  Status
  
      Draft
  
  Version
  
      Version 1, November 3, 2019
  
  Number
  
      EGL Extension #??
  
  Dependencies
  
      This extension is written against the wording of the EGL 1.5
      Specification.
  
  Overview
  
      This extension allows an application that uses a Google Games
      Platform surface to associate a Google Games Platform frame token
      with an eglSwapBuffers operation.
  
      It is based on the Vulkan extension VK_GGP_frame_token.
  
  New Types
  
      This is a 64-bit unsigned type that represents a GGP frame token.
  
      typedef khronos_uint64_t EGLFrameTokenANGLE;
  
  New Procedures and Functions
  
      EGLBoolean eglSwapBuffersWithFrameTokenANGLE(
          EGLDisplay dpy,
          EGLSurface surface,
          EGLFrameTokenANGLE frametoken);
  
  New Tokens
  
      None
  
  Additions to the EGL 1.5 Specification
  
      Add the following to section 3.10.1 "Posting to a Window":
  
      A Google Games Platform frame token can be specified when posting a color
      buffer to a window by calling
  
          EGLBoolean eglSwapBuffersWithFrameTokenANGLE(
              EGLDisplay dpy,
              EGLSurface surface,
              EGLFrameTokenANGLE frametoken);
  
      The behaviour of eglSwapBuffersWithFrameTokenANGLE is identical to that
      of eglSwapBuffers except that the behaviour is undefined when <frametoken>
      is not a valid GgpFrameToken.
  
  Issues
  
      None yet.
  
  Revision History
  
      Rev.    Date         Author     Changes
      ----  -------------  ---------  ----------------------------------------
        1   Nov 3, 2019    jmadill    Initial version