An A4 page (595.28×841.89 pt) rendered 595×841 at 72 dpi, where
pdftoppm gives 596×842: the whole-page render passed hayro no size, and
hayro floors the scaled page size. Content touching the right or bottom
edge lost its last partial pixel at every resolution.
- render: new device_pixels(pt, scale) rounds up (ignoring float noise
up to 1/100 px, so Letter at 150 dpi stays 1275 px). The untiled
render passes it to hayro as the width and height, still within
MAX_SIDE. The partial edge pixels are anti-aliased against the white
page, as the clip to the crop box already does.
- ui-egui: the canvas tile grid uses the same helper instead of
round(), so tiled pages get tiles for the partial row and column too.
- No change to vendored hayro.
Regression test: a fractional MediaBox renders 596×842 with partly
covered edge pixels, 2481 px wide at 300 dpi, and a corner tile matches
the whole-page render. It failed (595×841) before the fix.
Co-authored-by: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Co-authored-by: Brandon Thomas <echelon@gmail.com>
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