tree db8eeb495098c8f65e7b7d1630783a847b8cd16a
parent c84dc1f9efe7ce4f3dcc5fe40d8b4818442d5c7b
author Hui Yingst <nigi@chromium.org> 1663632173 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1663632173 +0000

[Skia] Fix the issue that some images are not rendered smooth

Use `bNoSmoothing` in FXDIB_ResampleOptions to control whether
CFX_SkiaDeviceDriver::StartDIBitsSkia() should avoid switching to
linear sampling option.

When we leave FXDIB_ResampleOptions as it is, StartDIBitsSkia() can
decide whether to switch to linear sampling option for a smoother
bitmap rendering result just like how CStretchEngine is used by AGG
and SkiaPaths renderers.

When enforcing `bNoSmoothing` to be true, switching to linear sampling
option will be prevented.

Fixed: pdfium:1857,pdfium:1859
Change-Id: I744a9c33de1f34932e30711eb4ebbc9b1d7e8323
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/97791
Commit-Queue: Nigi <nigi@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>