kc3-lang/angle/extensions/ANGLE_compressed_texture_etc.txt

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• Hash : d01ae535
  Author :
  Date : 2019-10-05T23:30:29
  

  (ANGLE) Rename CHROMIUM_compressed_texture_etc to use ANGLE_ prefix.
  
  This is the ANGLE side of a two-sided patch including Chromium to
  rename this synthetic OpenGL extension to use an ANGLE_ prefix.
  
  Bug: chromium:1011653
  Change-Id: Ice4b526a34157ebbd8c283aacc9437fae2e35d6e
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1843506
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Kenneth Russell <kbr@chromium.org>
  

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• extensions/ANGLE_compressed_texture_etc.txt

• Name
  
      ANGLE_compressed_texture_etc
  
  Name Strings
  
      GL_ANGLE_compressed_texture_etc
  
  Version
  
      Last Modifed Date: October 5, 2019
  
  Dependencies
  
      OpenGL ES 2.0 is required.
  
  Overview
  
      This extension exposes the OpenGL ES 3.0 core compressed texture
      formats in OpenGL ES 2.0.
  
  New Procedures and Functions
  
      None
  
  New Tokens
  
      Accepted by the <internalformat> parameter of CompressedTexImage2D and the
      <format> parameter of CompressedTexSubImage2D:
  
          COMPRESSED_R11_EAC                                0x9270
          COMPRESSED_SIGNED_R11_EAC                         0x9271
          COMPRESSED_RG11_EAC                               0x9272
          COMPRESSED_SIGNED_RG11_EAC                        0x9273
          COMPRESSED_RGB8_ETC2                              0x9274
          COMPRESSED_SRGB8_ETC2                             0x9275
          COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2          0x9276
          COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2         0x9277
          COMPRESSED_RGBA8_ETC2_EAC                         0x9278
          COMPRESSED_SRGB8_ALPHA8_ETC2_EAC                  0x9279
  
      Querying COMPRESSED_TEXTURE_FORMATS will include these new formats.
  
  New Procedures and Functions
  
      None.
  
  Errors
  
      The error INVALID_VALUE is generated if the <internalformat> parameter of
      CompressedTexImage2D or the <format> parameter of CompressedTexSubImage2D is
      COMPRESSED_R11_EAC, COMPRESSED_SIGNED_R11_EAC, COMPRESSED_RGB8_ETC2,
      COMPRESSED_SRGB8_ETC2, COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2 or
      COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2, and imageSize is not
  
          floor((width + 3) / 4) * floor((height + 3) / 4) * 8
  
      The error INVALID_VALUE is generated if the <internalformat> parameter of
      CompressedTexImage2D or the <format> paremeter of CompressedTexSubImage2D is
      COMPRESSED_RG11_EAC, COMPRESSED_SIGNED_RG11_EAC, COMPRESSED_RGBA8_ETC2_EAC,
      or COMPRESSED_SRGB8_ALPHA8_ETC2_EAC, and imageSize is not
  
          floor((width + 3) / 4) * floor((height + 3) / 4) * 16
  
  
  New State
  
      None.
  
  Revision History
  
      9/19/2016   First revision
      10/5/2019   Rename to ANGLE_compressed_texture_etc
  

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