commit 1f3efb11ff8c884a254f4272f0d1ee0b77ceff2f
author Dan Stoza <stoza@google.com> Wed Oct 15 16:34:55 2014 -0700
committer Dan Stoza <stoza@google.com> Tue Oct 28 16:01:47 2014 -0700
tree f424d3d9d1c1cf5a7f63794e8d2b868fb74e8007
parent 70ec2941530766bdca09ef2983a3ff794c028ee6

Don't run large virtual displays through HWC

This change watches for a MAX_VIRTUAL_DISPLAY_DIMENSION value, which
will be set (if necessary) in BoardConfig.mk. If the value is set,
any virtual displays that have a width or a height greater than that
dimension will bypass the hardware composer HAL and be handled only
by SurfaceFlinger.

Bug: 17701816
Change-Id: Ia6ca44dfd6a7a9bc0f054493d3f13006bc32fa14

services/surfaceflinger/Android.mk

diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index 57e94ef..76545f3 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -83,6 +83,12 @@
     LOCAL_CFLAGS += -DPRESENT_TIME_OFFSET_FROM_VSYNC_NS=0
 endif
 
+ifneq ($(MAX_VIRTUAL_DISPLAY_DIMENSION),)
+    LOCAL_CFLAGS += -DMAX_VIRTUAL_DISPLAY_DIMENSION=$(MAX_VIRTUAL_DISPLAY_DIMENSION)
+else
+    LOCAL_CFLAGS += -DMAX_VIRTUAL_DISPLAY_DIMENSION=0
+endif
+
 LOCAL_CFLAGS += -fvisibility=hidden -Werror=format
 LOCAL_CFLAGS += -std=c++11