hwc: avoid composition for static screen use-cases
pp-daemon may trigger screen-refresh for several times to LUT convergence.
For these cases we are re-compositing same frame for every screen-refresh,
which is not necessary is being avoided in this change.
Change-Id: Ifde013a2d6148f905d70d48da858159cc4187bfe
diff --git a/libhwcomposer/hwc_copybit.h b/libhwcomposer/hwc_copybit.h
index eaf015f..b67e1b8 100644
--- a/libhwcomposer/hwc_copybit.h
+++ b/libhwcomposer/hwc_copybit.h
@@ -28,6 +28,8 @@
#define MAX_SCALE_FACTOR 16
#define MIN_SCALE_FACTOR 0.0625
#define MAX_LAYERS_FOR_ABC 2
+#define INVALID_DIMENSION -1
+#define NO_UPDATING_LAYER -2
namespace qhwc {
class CopyBit {