kc3-lang/angle/extensions/EGL_ANGLE_platform_angle_webgpu.txt

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  Commit

• Author : Geoff Lang
  Date : 2025-05-22 15:59:01
  Hash : c1e806de
  Message : WebGPU: Allow providing an external WGPUDevice. Update EGL_ANGLE_platform_angle_webgpu with a new parameter which allows initializing DisplayWgpu with a pre-existing WGPUDevice. The adapter and instance are queried from this device. Bug: angleproject:42266898, angleproject:414827222 Change-Id: I3159ebe19750e75c5cf9aa395332f48385fdb4d9 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/6578196 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>

• extensions/EGL_ANGLE_platform_angle_webgpu.txt

• Name
  
      ANGLE_platform_angle_webgpu
  
  Name Strings
  
      EGL_ANGLE_platform_angle_webgpu
  
  Contributors
  
      Liza Burakova, Google
      Matt Denton, Google
      Geoff Lang, Google
      Shahbaz Youssefi, Google
  
  Contacts
  
      Liza Burakova, Google (liza 'at' chromium 'dot' org)
  
  Status
  
      Draft
  
  Version
  
      Version 1,  January 22, 2024
  
  Number
  
      EGL Extension XXX
  
  Extension Type
  
      EGL client extension
  
  Dependencies
  
      Requires ANGLE_platform_angle.
  
  Overview
  
      This extension enables selection of WebGPU display types.
  
  New Types
  
      None
  
  New Procedures and Functions
  
      None
  
  New Tokens
  
      Accepted as values for the EGL_PLATFORM_ANGLE_TYPE_ANGLE attribute:
  
          EGL_PLATFORM_ANGLE_TYPE_WEBGPU_ANGLE               0x34DF
  
      Accepted as an attribute name in the <attrib_list> argument of
      eglGetPlatformDisplayEXT:
  
          EGL_PLATFORM_ANGLE_DAWN_PROC_TABLE_ANGLE           0x3480
          EGL_PLATFORM_ANGLE_WEBGPU_DEVICE_ANGLE             0x34F6
  
  
  Additions to the EGL Specification
  
      None.
  
  New Behavior
  
      To request a display that translates to WebGPU, the value of
      EGL_PLATFORM_ANGLE_TYPE_ANGLE should be
      EGL_PLATFORM_ANGLE_TYPE_WEBGPU_ANGLE.
  
      To configure the WebGPU function pointers used, use the attribute
      EGL_PLATFORM_ANGLE_DAWN_PROC_TABLE_ANGLE. The value of
      EGL_PLATFORM_ANGLE_DAWN_PROC_TABLE_ANGLE should be a pointer to
      a DawnProcTable. If a proc table is not provided or the provided
      proc table is NULL, an implementation specific one will be used.
  
      To use an existing WebGPU adapter and device, use the attribute
      EGL_PLATFORM_ANGLE_WEBGPU_DEVICE_ANGLE.
      EGL_PLATFORM_ANGLE_WEBGPU_DEVICE_ANGLE should be a WGPUDevice handle.
      If a device is not provided or is NULL, an implementation specific
      one will be used.
  
  Issues
  
      None
  
  Revision History
  
      Version 1, 2024-01-22 (Liza Burakova)
        - Initial draft
      Version 2, 2025-04-28 (Geoff Lang)
        - Add EGL_PLATFORM_ANGLE_DAWN_PROC_TABLE_ANGLE
      Version 3, 2025-05-22 (Geoff Lang)
        - Add EGL_PLATFORM_ANGLE_WEBGPU_DEVICE_ANGLE