2061411-bitmap-scale.yaml

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# A scale transform - uniform or not - must apply to embedded-bitmap glyphs.

# The platform backends force an identity glyph shape for bitmap fonts, so a

# scale survives rasterization only as the scalar `RasterizedGlyph::scale`, which

# cannot express one; on the device glyph path that painted the glyph at its

# untransformed size (bug 2061411, and clipped as well when scaling down -

# bug 2062234). The reference renders the same content in local raster space,

# where the shader applies the full transform to the glyph image - at the scale the

# transform asks for, so this also asserts that the glyph is rasterized at its

# final size rather than scaled up from the untransformed one (bug 2064316).

root:

  items:

    - type: stacking-context

      bounds: [0, 0, 800, 600]

      transform: scale(3)

      transform-origin: [0, 0]

      raster-space: screen

      items:

        - text: "000"

          origin: 20 40

          size: 20

          font: "Proggy.ttf"

          embedded-bitmaps: true

    - type: stacking-context

      bounds: [0, 0, 800, 600]

      transform: scale(1, 3)

      transform-origin: [0, 0]

      raster-space: screen

      items:

        - text: "000"

          origin: 20 90

          size: 20

          font: "Proggy.ttf"

          embedded-bitmaps: true

    - type: stacking-context

      bounds: [0, 0, 800, 600]

      transform: scale(3, 1)

      transform-origin: [0, 0]

      raster-space: screen

      items:

        - text: "000"

          origin: 20 330

          size: 20

          font: "Proggy.ttf"

          embedded-bitmaps: true