op/paint: add nearest neighbor scaling

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This adds support for nearest neighbor filtering,
which can be useful in quite a few scenarios.

  img := paint.NewImageOp(m)
  img.Filter = paint.FilterNearest
  img.Add(gtx.Ops)

Fixes: https://todo.sr.ht/~eliasnaur/gio/414
Signed-off-by: Egon Elbre <egonelbre@gmail.com>

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This commit is contained in:

Egon Elbre

2023-11-15 12:02:08 +02:00

committed by Elias Naur

parent 23b6f06e3e

commit 5fa94ff67b

6 changed files with 113 additions and 4 deletions

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gpu/internal/rendertest/refs/TestImageRGBA_ScaleLinear.png

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gpu/internal/rendertest/refs/TestImageRGBA_ScaleNearest.png

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