commit 5641642a207fdd21175d2134316c4da34db3e9e9
author Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org> Tue Feb 25 13:50:34 2014 +0530
committer Amit Pundir <amit.pundir@linaro.org> Mon Jun 02 17:41:36 2014 +0530
tree eb93a7f64794954843b94e266098c984ed9d5532
parent 5e3ac6bc7138e92fa04d7425a2a2535b9ae0e44a

gralloc: let target configure page flipping ioctl

Let vendor choose which framebuffer ioctl (FBIOPUT_VSCREENINFO or
FBIOPAN_DISPLAY) is best suited to do page-flip on its target platform.
Neither API is well documented about their usage and most of the
time it really depends on the respective framebuffer driver implementation.

* Default ioctl to do page-flip is FBIOPUT_VSCREENINFO.
* Set "TARGET_USE_PAN_DISPLAY=true" in board config file to use FBIOPAN_DISPLAY.

Change-Id: Ic3a50bd0f5fe37ac0149e11649c4abdadea85529
Signed-off-by: Amit Pundir <amit.pundir@linaro.org>

modules/gralloc/Android.mk

diff --git a/modules/gralloc/Android.mk b/modules/gralloc/Android.mk
index a4ffd20..092e851 100644
--- a/modules/gralloc/Android.mk
+++ b/modules/gralloc/Android.mk
@@ -29,5 +29,8 @@
 
 LOCAL_MODULE := gralloc.default
 LOCAL_CFLAGS:= -DLOG_TAG=\"gralloc\" -Wno-missing-field-initializers
+ifeq ($(TARGET_USE_PAN_DISPLAY),true)
+LOCAL_CFLAGS += -DUSE_PAN_DISPLAY=1
+endif
 
 include $(BUILD_SHARED_LIBRARY)