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PojavLauncherTeam
GitHub Repository: PojavLauncherTeam/angle
 Path: blob/main_old/extensions/ANGLE_webgl_compatibility.txt
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Name

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    ANGLE_webgl_compatibility

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Name Strings

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    GL_ANGLE_webgl_compatibility

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Contributors

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    Geoff Lang

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    James Darpinian

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Contact

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    Geoff Lang (geofflang 'at' google.com)

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Notice

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    Copyright (c) 2016 The Khronos Group Inc. Copyright terms at

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        http://www.khronos.org/registry/speccopyright.html

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Status

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    Draft

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Version

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    Version 3, October 3, 2019

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Number

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    OpenGL ES Extension #??

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Dependencies

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    Requires OpenGL ES 2.0

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    Written against the OpenGL ES 2.0 specification.

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    Interacts with EGL_ANGLE_create_context_webgl_compatibility (or equivalent)

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    extension.

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    Interacts with the ARB_texture_rectangle/ANGLE_texture_rectangle extension.

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Overview

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    With this extension enabled, the OpenGL ES context will have additional

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    features and validation to be compatible with the WebGL specification.

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New Procedures and Functions

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    None

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New Tokens

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    None

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Additions to the OpenGL ES Specification

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    Additional validation will be performed according to the the sections of

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    the WebGL specification entitled "Differences Between WebGL and OpenGL ES

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    2.0" and "Differences Between WebGL and OpenGL ES 3.0".

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    When the ANGLE_texture_rectangle extension is supported then Enable,

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    Disable, and IsEnabled accept the symbolic constant

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    TEXTURE_RECTANGLE_ANGLE, which controls whether ARB_texture_rectangle is

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    allowed to be used by shaders at compilation time. This is initially

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    enabled. WebGL implementations may want to use ARB_texture_rectangle when

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    compiling their own shaders but not expose the extension to WebGL user

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    shaders. This only affects shader compilation and not any other part of

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    the ANGLE_texture_rectangle extension, nor the behavior of already

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    compiled shaders.

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New State

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    None

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Conformance Tests

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    TBD

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Issues

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    None

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Revision History

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    Rev.    Date         Author     Changes

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    ----  -------------  ---------  ----------------------------------------

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      1   Sept 16, 2016  geofflang  Initial version

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      2    Nov 28, 2016  geofflang  Break the extension requests into a

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                                    separate extension.

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      3     Oct 3, 2019  jdarpinian Allow disabling ARB_texture_rectangle

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