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  1. Qt
  2. QTBUG-74406 Abstract away the graphics APIs in Qt
  3. QTBUG-79576

Move QShaderDescription serialization away from binary JSON

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    Details

    • Type: Technical task
    • Status: Closed
    • Priority: P2: Important
    • Resolution: Done
    • Fix Version/s: 5.15
    • Component/s: Qt RHI
    • Labels:
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      Description

      While still available, binary JSON is expected to become deprecated (in 5.15?). Users are encouraged to migrate to CBOR or something else.

      As a serialized QShader includes the associated QShaderDescription stored as binary JSON, we should consider switching the approach to either to CBOR or something else. The change should be done in qtbase/5.15, in order not to disturb 5.14 (which ships with .qsb files in a bunch of places).

      Regarding compatibility:

      • The qsb format is versioned so we can continue supporting deserializing both.
      • Serialization can just use the latest format always since that also lives in QShader, in qtbase. Thus building qt-labs/qtshadertools against qtbase 5.14 gives a qsb outputting the 5.14 compatible format (that also works with 5.15), while building against 5.15 produces a qsb tool outputting the new, 5.15 compatible format (that does not work with 5.14).

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            Assignee:
            lagocs Laszlo Agocs
            Reporter:
            lagocs Laszlo Agocs
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