Revert "Fill intermediate device image with clamped backdrop content"
This reverts commit 25f5e1f83835431d53574f3b139155b5d97da78a.
Reason for revert: needs_subset is unused for no-gpu+release builds
Original change's description:
> Fill intermediate device image with clamped backdrop content
>
> Adds asShader() to SkSpecialImage that accepts a local matrix and a
> tilemode. It automatically handles the subsetting of the image data
> (either by making a new bitmap view, or using GrTexturEffect), as well
> as modifying the local matrix to account for the subset's offset within
> the image data.
>
> By adding asShader(), SkCanvas can fill a device using drawPaint() to
> apply the image's tilemode to the entire contents, ensuring that any
> device bounds clipping from snapping of backdrop filters doesn't leave
> the default transparent pixels around for later filtering.
>
> Additionally, making SkSpecialImage more like a shader will make it
> easier down the road to continue refactoring the image filter pipeline
> to be more backend agnostic and allow operations to be performed by
> filling devices with shaders, instead of relying on FPs directly.
>
> Lastly, once SkImage::makeShader() can support subsets on the raster
> backend, then SkSpecialImage may not be required at all in order to
> implement the image filtering pipeline...
>
> Bug: b/197774543, skia:12784
> Change-Id: I21dcb22b56b19ff58d246b3c0517bb8a265649bc
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/491445
> Reviewed-by: Brian Salomon <bsalomon@google.com>
> Commit-Queue: Michael Ludwig <michaelludwig@google.com>
Bug: b/197774543, skia:12784
Change-Id: Ia9adedaab9378d2679353ab94c7a9589c0ff9e02
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/491978
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Michael Ludwig <michaelludwig@google.com>
6 files changed