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This extension allows the user to specify if ANGLE should create a context of the exact requested version or a higher version context that is backwards compatible. BUG=angleproject:3425 Change-Id: I7d0b75cdd7e34a2fc888aa238e1eeb67af82ae0d Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1601560 Commit-Queue: Geoff Lang <geofflang@chromium.org> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
94 lines
1.7 KiB
Plaintext
94 lines
1.7 KiB
Plaintext
Name
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ANGLE_create_context_backwards_compatible
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Name Strings
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EGL_ANGLE_create_context_backwards_compatible
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Contributors
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Geoff Lang
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Contacts
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Geoff Lang (geofflang 'at' google.com)
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Status
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Draft
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Version
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Version 1, May 8, 2019
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Number
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EGL Extension #??
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Dependencies
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Requires EGL 1.4.
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Written against the EGL 1.5 specification.
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Overview
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This extension allows the user to create a context with exact major and
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minor versions. By default, a context may be created of any version that
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is backwards-compatible with the requested verion but it is often useful to
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users to request and target a specific version.
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New Types
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None
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New Procedures and Functions
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None
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New Tokens
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Accepted as an attribute name in the <*attrib_list> argument to
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eglCreateContext:
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EGL_CONTEXT_OPENGL_BACKWARDS_COMPATIBLE_ANGLE 0x3483
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Additions to the EGL 1.5 Specification
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Modify section 3.7.1.1 "OpenGL and OpenGL ES Context Versions":
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- The context returned must be the specified version, or a later version
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- which is backwards compatible with that version.
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+ The context returned must be the specified version, or a later version
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+ which is backwards compatible with that version if
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+ EGL_CONTEXT_OPENGL_BACKWARDS_COMPATIBLE_ANGLE is EGL_TRUE.
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Append to section 3.7.1.1 "OpenGL and OpenGL ES Context Versions":
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The default value of EGL_CONTEXT_OPENGL_BACKWARDS_COMPATIBLE_ANGLE is
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EGL_TRUE.
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Errors
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None
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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 May 8, 2019 geofflang Initial version
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