kc3-lang/angle/extensions/EGL_ANGLE_device_d3d.txt

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• Author : Jamie Madill
  Date : 2015-03-25 13:31:32
  Hash : 33d12cb9
  Message : Add drafts for device query extensions. These extensions give power apps the ability to query raw device pointers from the EGL layer. EGL_EXT_device_query is based on EGL_EXT_device_base, which is being split into device_query and device_enumerate. We remove the device enumeration logic, and only allow the app to query the current device from a display, which matches how ANGLE works internally. EGL_ANGLE_device_d3d gives the app the ability to query D3D devices associated with a display. BUG=angleproject:935 Change-Id: I8079661f00d11717ed0e792c9fe8dc5c26f67dcc Reviewed-on: https://chromium-review.googlesource.com/252110 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Jamie Madill <jmadill@chromium.org>

• extensions/EGL_ANGLE_device_d3d.txt

• Name
  
      ANGLE_device_d3d
  
  Name Strings
  
      EGL_ANGLE_device_d3d
  
  Contributors
  
      Jamie Madill  (jmadill 'at' google.com)
  
  Contact
  
      Jamie Madill  (jmadill 'at' google.com)
  
  Status
  
      Draft
  
  Version
  
      Version 1, Mar 25, 2015
  
  Number
  
      EGL Extension #XXX
  
  Extension Type
  
      EGL device extension
  
  Dependencies
  
      This extension is written against the language of EGL 1.5 as
      modified by EGL_EXT_device_query.
  
      EGL_EXT_device_query is required.
  
  Overview
  
      ANGLE has the ability to run GPU commands on a native D3D device.
      This extension defines a mapping from an EGL device to a D3D
      device, after it's queried from an EGL display.
  
  IP Status
  
      No known claims.
  
  New Types
  
      None.
  
  New Procedures and Functions
  
      None.
  
  New Tokens
  
      Accepted as a queried <attribute> in eglQueryDeviceAttribEXT:
  
          EGL_D3D9_DEVICE_ANGLE              0x33A0
          EGL_D3D11_DEVICE_ANGLE             0x33A1
  
  Add a new section 2.1.3 (D3D Devices) after 2.1.2 (Devices)
  
      Somewhat analogous to an EGL device, a D3D device establishes a
      namespace for D3D operations. In the D3D APIs, such devices are
      represented by pointers. For more details, see the D3D
      documentation.
  
  Changes to section 3.2 (Devices)
  
      Replace the paragraph immediately following the prototype for
      eglQueryDeviceAttribEXT:
  
      <attribute> may be either EGL_D3D9_DEVICE_ANGLE or EGL_D3D11_DEVICE_ANGLE.
      On success, EGL_TRUE is returned, and a valid D3D9 or D3D11 device pointer
      corresponding to the EGL device is returned in <value>. This handle
      is compatible with D3D API functions. If the EGL device is not currently
      associated with a D3D9 device and <attribute> is EGL_D3D9_DEVICE_ANGLE,
      or if the EGL device is not currently associated with a D3D11 device and
      <attribute> is EGL_D3D11_DEVICE_ANGLE, EGL_BAD_ATTRIBUTE is returned,
      and <value> is left unchanged.
  
  Issues
  
      None
  
  Revision History
  
      Version 1, Mar 25, 2015 (Jamie Madill)
          - Initial Draft