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Commit 7baca0b0 authored by Stan Iliev's avatar Stan Iliev
Browse files

Improve SurfaceView bounds calculation 

Estimate SurfaceView bounds conservatively to handle GPU rounding
errors. When SurfaceView border is in the middle of a pixel,
a fudge factor is added or substracted to always extend the region.

Test: passed CTS tests
Bug: 131240729
Change-Id: I74d5c1b40f9e730758f26341eb4a028bbae6ecd9
parent 3939be61

core/jni/android_view_RenderNode.cpp

+1 −1
Original line number Diff line number Diff line
@@ -546,7 +546,7 @@ static void android_view_RenderNode_requestPositionUpdates(JNIEnv* env, jobject, 
            if (CC_LIKELY(transform.isPureTranslate())) {

                // snap/round the computed bounds, so they match the rounding behavior

                // of the clear done in SurfaceView#draw().

                bounds.snapToPixelBoundaries();

                bounds.snapGeometryToPixelBoundaries(false);

            } else {

                // Conservatively round out so the punched hole (in the ZOrderOnTop = true case)

                // doesn't extend beyond the other window