SurfaceFlinger: add a crop to the layer state
This change adds a crop rectangle specified in window coordinates to the layer
state. The all window pixels outside this crop rectangle are treated as though
they were fully transparent. This change also adds the plumbing necessary for
WindowManager to set that crop.
Change-Id: I582bc445dc8c97d4c943d4db8d582a6ef5a66081
diff --git a/libs/gui/Surface.cpp b/libs/gui/Surface.cpp
index 059f313..d7590f0 100644
--- a/libs/gui/Surface.cpp
+++ b/libs/gui/Surface.cpp
@@ -164,6 +164,12 @@
const sp<SurfaceComposerClient>& client(mClient);
return client->setFreezeTint(mToken, tint);
}
+status_t SurfaceControl::setCrop(const Rect& crop) {
+ status_t err = validate();
+ if (err < 0) return err;
+ const sp<SurfaceComposerClient>& client(mClient);
+ return client->setCrop(mToken, crop);
+}
status_t SurfaceControl::validate() const
{