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Commit b7cc48ab authored by Treehugger Robot's avatar Treehugger Robot Committed by Automerger Merge Worker
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Merge "RenderEngine: Limit the size of blur input to the display size" into udc-dev am: be2ac9c7 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/24193668



Change-Id: Ief8161d04df8932e2ac461cb6cc784a416878fb4
Signed-off-by: default avatarAutomerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
parents cd35f59c be2ac9c7

libs/renderengine/skia/SkiaRenderEngine.cpp

+13 −1
Original line number Original line Diff line number Diff line
@@ -813,8 +813,20 @@ void SkiaRenderEngine::drawLayersInternal( 
            if (!blurInput) {

            if (!blurInput) {

                blurInput = activeSurface->makeImageSnapshot();

                blurInput = activeSurface->makeImageSnapshot();

            }

            }



            // rect to be blurred in the coordinate space of blurInput

            // rect to be blurred in the coordinate space of blurInput

            const auto blurRect = canvas->getTotalMatrix().mapRect(bounds.rect());

            SkRect blurRect = canvas->getTotalMatrix().mapRect(bounds.rect());



            // Some layers may be much bigger than the screen. If we used

            // `blurRect` directly, this would allocate a large buffer with no

            // benefit. Apply the clip, which already takes the display size

            // into account. The clipped size will then be used to calculate the

            // size of the buffer we will create for blurring.

            if (!blurRect.intersect(SkRect::Make(canvas->getDeviceClipBounds()))) {

                // This should not happen, but if it did, we would use the full

                // sized layer, which should still be fine.

                ALOGW("blur bounds does not intersect display clip!");

            }





            // if the clip needs to be applied then apply it now and make sure

            // if the clip needs to be applied then apply it now and make sure

            // it is restored before we attempt to draw any shadows.

            // it is restored before we attempt to draw any shadows.