kc3-lang/angle/doc/AddingExtensions.md

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• Author : Shahbaz Youssefi
  Date : 2024-06-17 22:46:08
  Hash : d193d51b
  Message : Replace issue ids post migration to new issue tracker This change replaces anglebug.com/NNNN links. Bug: None Change-Id: I8ac3aec8d2a8a844b3d7b99fc0a6b2be8da31761 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/5637912 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>

• doc/AddingExtensions.md

• # Introduction
  
  This page describes how to add new extensions to ANGLE.
  
  # Adding EGL extensions
  
  Note: see also [anglebug.com/42261334](http://anglebug.com/42261334), linked
  from the [starter project](Starter-Projects.md) doc, to simplify some
  of these steps.
  
  For extensions requiring new entry points:
  
  * Add the extension xml to
    [scripts/egl_angle_ext.xml](../scripts/egl_angle_ext.xml) .
  
  * Note the prototypes for the new entry points must be added to the
    top of the file, and the functions themselves grouped under the
    extension name to the bottom of the file.
  
  * Modify [scripts/registry_xml.py](../scripts/registry_xml.py) to add
    the new extension as needed.
  
  * Run
    [scripts/run_code_generation.py](../scripts/run_code_generation.py)
    .
  
  * The entry point itself goes in
    [entry_points_egl_ext.h](../src/libGLESv2/entry_points_egl_ext.h)
    and
    [entry_points_egl_ext.cpp](../src/libGLESv2/entry_points_egl_ext.cpp)
    .
  
  * Add the new function to [libEGL.cpp](../src/libEGL/libEGL.cpp) and
    [libEGL.def](../src/libEGL/libEGL.def) .
  
  * Update [eglext_angle.h](../include/EGL/eglext_angle.h) with the new
    entry points and/or enums.
  
  * Add members to the appropriate Extensions struct in
    [Caps.h](../src/libANGLE/Caps.h) and
    [Caps.cpp](../src/libANGLE/Caps.cpp) .
  
  * Initialize extension availability in the `Display` subclass's
    `generateExtensions` method for displays that can support the
    extension; for example,
    [DisplayCGL](../src/libANGLE/renderer/gl/cgl/DisplayCGL.mm).