kc3-lang/angle/extensions/ANGLE_logic_op.txt

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• Hash : de73f7cd
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  Date : 2022-09-14T22:27:28
  

  Introduce GL_ANGLE_logic_op
  
  This extension exposes the desktop GL glLogicOp function as a GLES
  extension.  This is supported by Vulkan through the logicOp feature as
  well.
  
  The goal is to directly use this extension in GLES1 emulation where the
  backend supports it, avoiding a more costly fallback.
  
  Bug: angleproject:3862
  Change-Id: I7ed436cdf401437157ca9724168849b4c819b91b
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3898310
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Amirali Abdolrashidi <abdolrashidi@google.com>
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  

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• extensions/ANGLE_logic_op.txt

• Name
  
      ANGLE_logic_op
  
  Name Strings
  
      GL_ANGLE_logic_op
  
  Contributors
  
      Shahbaz Youssefi, Google
  
  Contact
  
      Shahbaz Youssefi, Google (syoussefi 'at' google.com)
  
  Status
  
      Draft
  
  Version
  
      Last Modified Date: Sep 14, 2022
      Revision: 1
  
  Number
  
      TBD
  
  Dependencies
  
      Written against the OpenGL ES 2.0 specifications
  
  Overview
  
      For internal use of ANGLE for GLES1 emulation, through this extension the
      backend lets the frontend know that the equivalent of glLogicOp is natively
      supported and can be used.
  
  New Procedures and Functions
  
      The following commands are added:
  
          void LogicOpANGLE(enum op);
  
  New Tokens
  
      The following tokens are added:
  
      Accepted by the <cap> parameter of Enable, Disable, and IsEnabled:
  
          COLOR_LOGIC_OP_ANGLE                 0x0BF2
  
      Accepted by the <op> parameter of LogicOpANGLE:
  
          LOGIC_OP_CLEAR_ANGLE                 0x1500
          LOGIC_OP_AND_ANGLE                   0x1501
          LOGIC_OP_AND_REVERSE_ANGLE           0x1502
          LOGIC_OP_COPY_ANGLE                  0x1503
          LOGIC_OP_AND_INVERTED_ANGLE          0x1504
          LOGIC_OP_NOOP_ANGLE                  0x1505
          LOGIC_OP_XOR_ANGLE                   0x1506
          LOGIC_OP_OR_ANGLE                    0x1507
          LOGIC_OP_NOR_ANGLE                   0x1508
          LOGIC_OP_EQUIV_ANGLE                 0x1509
          LOGIC_OP_INVERT_ANGLE                0x150A
          LOGIC_OP_OR_REVERSE_ANGLE            0x150B
          LOGIC_OP_COPY_INVERTED_ANGLE         0x150C
          LOGIC_OP_OR_INVERTED_ANGLE           0x150D
          LOGIC_OP_NAND_ANGLE                  0x150E
          LOGIC_OP_SET_ANGLE                   0x150F
  
  The semantics of LogicOpANGLE and COLOR_LOGIC_OP_ANGLE are identical to LogicOp
  and COLOR_LOGIC_OP in the OpenGL ES 1.0 specification.
  
  Revision History
  
      Revision 1, 2022-07-14 (Shahbaz Youssefi)
          - Initial draft
  

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