backdrop-filter-many-in-blurred-parent.yaml

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# Regression test for bug 2068836: many sibling backdrop-filters inside a

# blurred parent used to make order_readers_after() walk the filter chain once

# per path through it, which is exponential in the number of siblings. Before

# the fix this test does not finish.

# Inverting the red backdrop gives cyan, so each backdrop-filter should match a

# cyan rect drawn in its place.

---

root:

  items:

    - type: stacking-context

      filters: blur(2,2)

      items:

        - type: rect

          bounds: 0 0 256 256

          color: red

        - type: backdrop-filter

          bounds: 16 16 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 72 16 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 128 16 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 184 16 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 16 72 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 72 72 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 128 72 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 184 72 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 16 128 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 72 128 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 128 128 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 184 128 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 16 184 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 72 184 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 128 184 24 24

          filters: invert(1)

        - type: backdrop-filter

          bounds: 184 184 24 24

          filters: invert(1)