зеркало из https://github.com/AvaloniaUI/angle.git
104 строки
2.6 KiB
Plaintext
104 строки
2.6 KiB
Plaintext
Name
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ANGLE_client_arrays
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Name Strings
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GL_ANGLE_client_arrays
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Contributors
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Geoff Lang
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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 1, February 13, 2016
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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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Overview
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This extension allows the OpenGL context to indicate if it supports drawing
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with client-side vertex or index data. Client-side can be very inefficient
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and unsafe, it is convenient for some users to completely disable its usage.
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New Procedures and Functions
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None
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New Tokens
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Accepted by the <cap> parameter to IsEnabled and the <pname> parameter to
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GetBooleanv, GetIntegerv, GetFloatv, and GetInteger64v:
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CLIENT_ARRAYS_ANGLE 0x93AA
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Additions to the OpenGL ES Specification
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Add after paragraph 3 of section 2.8 "Vertex Arrays":
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If VertexAttribPointer is called while zero is bound to the ARRAY_BUFFER
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buffer object binding point, the pointer argument is not NULL, and
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CLIENT_ARRAYS_ANGLE is TRUE, an INVALID_OPERATION error is generated.
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Add to the end of section 2.9.1 "Vertex Arrays in Buffer Objects":
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Rendering commands that draw more than 0 primitives using enabled vertex
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attributes with no buffer bound when CLIENT_ARRAYS_ANGLE is TRUE generate
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an INVALID_OPERATION error.
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Add to the end of section 2.9.2 "Array Indices in Buffer Objects":
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Rendering commands that draw using index data when no buffer is bound to
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the ELEMENT_ARRAY_BUFFER binding point when CLIENT_ARRAYS_ANGLE is TRUE
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generate an INVALID_OPERATION error.
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New State
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Modify Table 6.22, Miscellaneous
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Add:
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Initial
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Get Value Type Get Command Value Description
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-------------------- ---- ----------- ------- ---------------------
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CLIENT_ARRAYS_ANGLE B IsEnabled TRUE Client arrays enabled
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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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2 Jun 12, 2018 Brandon Jones (Intel) Remove primitives > 0 requirement to error
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when doing an indexed draw with no bound
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ELEMENT_ARRAY_BUFFER
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1 Feb 13, 2016 geofflang Initial version
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