Add a RenderBuffer object to store stencil buffers.
Bug #7146141
This change is needed to add a render buffer cache to avoid
creating and destroying stencil buffers on every frame.
This change also allows the renderer to use a 1 bit or 4 bit
stencil buffer whenever possible.
Finally this change fixes a bug introduced by a previous CL
which causes the stencil buffer to not be updated in certain
conditions. The fix relies on a new optional parameter in
drawColorRects() that can be used to avoid performing a
quickReject on rectangles generated by the clip region.
Change-Id: I2f55a8e807009887b276a83cde9f53fd5c01199f
diff --git a/libs/hwui/Snapshot.cpp b/libs/hwui/Snapshot.cpp
index 87ed825..19a5db7 100644
--- a/libs/hwui/Snapshot.cpp
+++ b/libs/hwui/Snapshot.cpp
@@ -183,6 +183,9 @@
}
void Snapshot::resetClip(float left, float top, float right, float bottom) {
+ // TODO: This is incorrect, when we start rendering into a new layer,
+ // we may have to modify the previous snapshot's clip rect and clip
+ // region if the previous restore() call did not restore the clip
clipRect = &mClipRectRoot;
clipRegion = &mClipRegionRoot;
setClip(left, top, right, bottom);