Add makefile for new libjpeg-turbo repository
BUG:25424175
BUG:23138693
Change-Id: I12314248a5c636bca0d69585dfb470ec656d0373
diff --git a/Android.mk b/Android.mk
new file mode 100644
index 0000000..f803b5f
--- /dev/null
+++ b/Android.mk
@@ -0,0 +1,66 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+# By default, the build system generates ARM target binaries in thumb mode,
+# where each instruction is 16 bits wide. Defining this variable as arm
+# forces the build system to generate object files in 32-bit arm mode. This
+# is the same setting previously used by libjpeg.
+# TODO (msarett): Run performance tests to determine whether arm mode is still
+# preferred to thumb mode for libjpeg-turbo.
+LOCAL_ARM_MODE := arm
+
+LOCAL_SRC_FILES := \
+ jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \
+ jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \
+ jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \
+ jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \
+ jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \
+ jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \
+ jfdctint.c jidctflt.c jidctfst.c jidctint.c jidctred.c jmemmgr.c \
+ jmemnobs.c jquant1.c jquant2.c jutils.c
+
+# ARM v7 NEON
+LOCAL_SRC_FILES_arm += simd/jsimd_arm_neon.S simd/jsimd_arm.c
+
+# If we are certain that the ARM v7 device has NEON (and there is no need for
+# a runtime check), we can indicate that with a flag.
+ifeq ($(strip $(TARGET_ARCH)),arm)
+ ifeq ($(ARCH_ARM_HAVE_NEON),true)
+ LOCAL_CFLAGS += -D__ARM_HAVE_NEON__
+ endif
+endif
+
+# ARM v8 64-bit NEON
+LOCAL_SRC_FILES_arm64 += simd/jsimd_arm64_neon.S simd/jsimd_arm64.c
+
+# TODO (msarett): x86 and x86_64 SIMD. Cross-compiling these assembly files
+# on Linux for Android is very tricky. This will require a
+# YASM or NASM as a dependency.
+
+# TODO (msarett): MIPS SIMD. This is available in upstream libjpeg-turbo,
+# but has not been cherry picked into the version used by
+# Android.
+
+LOCAL_CFLAGS += -O3 -fstrict-aliasing
+LOCAL_EXPORT_C_INCLUDE_DIRS := $(LOCAL_PATH)
+
+ifneq (,$(TARGET_BUILD_APPS))
+ # Unbundled branch, built against NDK.
+ LOCAL_SDK_VERSION := 17
+endif
+
+# Build as a static library.
+LOCAL_MODULE := libjpeg-turbo_static
+include $(BUILD_STATIC_LIBRARY)
+
+# Also build as a shared library.
+include $(CLEAR_VARS)
+
+ifneq (,$(TARGET_BUILD_APPS))
+ # Unbundled branch, built against NDK.
+ LOCAL_SDK_VERSION := 17
+endif
+
+LOCAL_WHOLE_STATIC_LIBRARIES = libjpeg-turbo_static
+LOCAL_MODULE := libjpeg-turbo
+include $(BUILD_SHARED_LIBRARY)