gralloc: Add support for prebuilt gralloc libs

If the user sets BOARD_GPU_DRIVERS to 'prebuilt' and passes a path
to the prebuilt gralloc binary via BOARD_GPU_DRIVER_BINARY, then
that prebuilt gralloc image will be used instead of building it from
source here.

Change-Id: I0fe3bc1919cacc38087afe3f76e4b8391975edbd
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>

diff --git a/Android.mk b/Android.mk
index 571ec1c..2a61b01 100644 (file)
--- a/Android.mk
+++ b/Android.mk
@@ -29,6 +29,7 @@ nouveau_drivers := nouveau
 vmwgfx_drivers := vmwgfx
 
 valid_drivers := \
+       prebuilt \
        $(intel_drivers) \
        $(radeon_drivers) \
        $(nouveau_drivers) \
@@ -53,6 +54,18 @@ ifneq ($(strip $(DRM_GPU_DRIVERS)),)
 LOCAL_PATH := $(call my-dir)
 
 include $(CLEAR_VARS)
+LOCAL_MODULE := gralloc.$(TARGET_PRODUCT)
+LOCAL_MODULE_TAGS := optional
+
+ifeq ($(strip $(DRM_GPU_DRIVERS)),prebuilt)
+
+LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw/
+LOCAL_SRC_FILES := ../../$(BOARD_GPU_DRIVER_BINARY)
+LOCAL_MODULE_CLASS := SHARED_LIBRARIES
+LOCAL_MODULE_SUFFIX := $(TARGET_SHLIB_SUFFIX)
+include $(BUILD_PREBUILT)
+
+else
 
 LOCAL_SRC_FILES := \
        gralloc.c \
@@ -122,10 +135,9 @@ LOCAL_STATIC_LIBRARIES += \
 LOCAL_SHARED_LIBRARIES += libdl
 endif # DRM_USES_PIPE
 
-LOCAL_MODULE := gralloc.$(TARGET_PRODUCT)
-LOCAL_MODULE_TAGS := optional
 LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw
 
 include $(BUILD_SHARED_LIBRARY)
 
+endif # DRM_GPU_DRIVERS=prebuilt
 endif # DRM_GPU_DRIVERS