Skia's Image.MakeImageFromEncoded applies the embedded JPEG's EXIF
orientation itself. A Panasonic RW2 preview stored 1920x1280 with
orientation 8 therefore decodes as 1280x1920 already — the frame the
camera meant.
previewGrid turned it a second time by its own per-orientation canvas
rotation, so a portrait frame's reference grid met the develop a quarter
turn out, previewMatch rejected the fit as folded and the RW2 opened with
no tone curve at all (~9-13 levels off across the shadows).
Drop the rotation and read the crop rectangle and aspect straight from
bmp.width()/bmp.height(), the display dimensions Skia hands back.
Panasonic RW2 now fits a real curve (dRGB 2.3,-0.0,0.4, was -9.1,-10.3,
-13.2). The five bodies that were already stable — ORF, NEF, DNG, both
RAF — measure exactly as before.
getJpegOrientation had no other caller and goes with it; raw-orf-check
drops its own byte-scanning preview finder, which crashed on DNG and RAF,
and reads the reference through the shipped extractEmbeddedJpeg.
3dtours
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