kc3-lang/angle/extensions/EGL_ANGLE_metal_texture_client_buffer.txt

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• Hash : f2aa9d5d
  Author :
  Date : 2021-04-11T14:55:19
  

  Reland: Metal: Support importing external metal textures
  
  This relands I4d4a88cfbb77d8b7508b787c7fec44073d3b11b0.
  
  Fixes:
  - uninstantiated ImageTestMetal error
  - failed ImageTest.ANGLEExtensionAvailability on ARM mac.
  
  Bug: angleproject:5763
  Bug: angleproject:5814
  Change-Id: I906fe52baefd6be3c6e00f594795bd527df01616
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2820178
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Le Hoang Quyen <le.hoang.q@gmail.com>
  

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• extensions/EGL_ANGLE_metal_texture_client_buffer.txt

• Name
  
      ANGLE_metal_texture_client_buffer
  
  Name Strings
  
      EGL_ANGLE_metal_texture_client_buffer
  
  Contributors
  
      Le Hoang Quyen
  
  Contacts
  
      Jamie Madill, Google (jmadill 'at' google 'dot' com)
      Le Hoang Quyen (lehoangq 'at' gmail.com)
  
  Status
  
      Draft
  
  Version
      Version 1, Jul 19, 2020
  
  Number
  
      EGL Extension #??
  
  Dependencies
  
      This extension is written against the wording of the EGL 1.4
      Specification.
  
  Overview
  
      This extension allows creating EGL images from external metal texture objects.
  
  New Types
  
      None
  
  New Procedures and Functions
  
      None
  
  New Tokens
  
      Accepted in the <target> parameter of eglCreateImageKHR:
  
          EGL_METAL_TEXTURE_ANGLE               0x34A7
  
  Additions to Chapter 2 of the EGL 1.2 Specification (EGL Operation)
  
      Add to section 2.5.1 "EGLImage Specification" (as defined by the
      EGL_KHR_image_base specification), in the description of
      eglCreateImageKHR:
  
     "Values accepted for <target> are listed in Table aaa, below.
  
        +----------------------------+-----------------------------------------+
        |  <target>                  |  Notes                                  |
        +----------------------------+-----------------------------------------+
        |  EGL_METAL_TEXTURE_ANGLE   |  Used for Metal texture objects         |
        +----------------------------+-----------------------------------------+
         Table aaa.  Legal values for eglCreateImageKHR <target> parameter
  
      ...
  
      If <target> is EGL_METAL_TEXTURE_ANGLE, <dpy> must be a valid display, <ctx>
      must be EGL_NO_CONTEXT, <buffer> must be a pointer to a valid MTLTexture
      object (cast into the type EGLClientBuffer), and attributes are ignored.
      The width and height of the pbuffer are determined by the width and height
      of <buffer>."
  
      If the EGL_ANGLE_device_metal extension is present, the provided Metal texture
      object must have been created by the same Metal device queried from the
      display. If these requirements are not met, an EGL_BAD_PARAMETER error is
      generated."
  
  Revision History
  
      Version 1, 2020/19/07 - First draft
  

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