TWRP-ify AOSP code
Pull in most TWRP sources
Stub out partition management code
Make it compile -- probably will not boot
Kind of a mess but have to start somewhere
diff --git a/libjpegtwrp/Android.mk b/libjpegtwrp/Android.mk
new file mode 100755
index 0000000..de852cb
--- /dev/null
+++ b/libjpegtwrp/Android.mk
@@ -0,0 +1,79 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_ARM_MODE := arm
+
+# Set ANDROID_JPEG_USE_VENUM to true to enable VeNum optimizations
+ANDROID_JPEG_USE_VENUM := true
+
+# Disable VeNum optimizations if they are not supported on the build target
+ifneq ($(ARCH_ARM_HAVE_VFP),true)
+ANDROID_JPEG_USE_VENUM := false
+else
+ifneq ($(ARCH_ARM_HAVE_NEON),true)
+ANDROID_JPEG_USE_VENUM := false
+endif
+endif
+
+LOCAL_SRC_FILES := \
+ jcapimin.c jcapistd.c jccoefct.c jccolor.c jcdctmgr.c jchuff.c \
+ jcinit.c jcmainct.c jcmarker.c jcmaster.c jcomapi.c jcparam.c \
+ jcphuff.c jcprepct.c jcsample.c jctrans.c jdapimin.c jdapistd.c \
+ jdatadst.c jdatasrc.c jdcoefct.c jdcolor.c jddctmgr.c jdhuff.c \
+ jdinput.c jdmainct.c jdmarker.c jdmaster.c jdmerge.c jdphuff.c \
+ jdpostct.c jdsample.c jdtrans.c jerror.c jfdctflt.c jfdctfst.c \
+ jfdctint.c jidctflt.c jquant1.c \
+ jquant2.c jutils.c jmemmgr.c \
+
+# use ashmem as libjpeg decoder's backing store
+LOCAL_CFLAGS += -DUSE_ANDROID_ASHMEM
+LOCAL_SRC_FILES += \
+ jmem-ashmem.c
+
+# the original android memory manager.
+# use sdcard as libjpeg decoder's backing store
+#LOCAL_SRC_FILES += \
+# jmem-android.c
+
+
+# the assembler is only for the ARM version, don't break the Linux sim
+ifneq ($(TARGET_ARCH),arm)
+ANDROID_JPEG_NO_ASSEMBLER := true
+endif
+
+ifeq ($(strip $(ANDROID_JPEG_NO_ASSEMBLER)),true)
+LOCAL_SRC_FILES += jidctint.c jidctfst.c jidctred.c
+else
+ifeq ($(ANDROID_JPEG_USE_VENUM),true)
+LOCAL_SRC_FILES += jidctvenum.c
+LOCAL_SRC_FILES += asm/armv7/jdcolor-armv7.S
+LOCAL_SRC_FILES += asm/armv7/jdcolor-android-armv7.S
+LOCAL_SRC_FILES += asm/armv7/jdidct-armv7.S
+LOCAL_CFLAGS += -DANDROID_JPEG_USE_VENUM
+else # ANDROID_JPEG_USE_VENUM, false
+LOCAL_SRC_FILES += jidctint.c jidctred.c jidctfst.c armv6_idct.S
+LOCAL_CFLAGS += -DANDROID_ARMV6_IDCT
+endif # ANDROID_JPEG_USE_VENUM
+endif
+
+LOCAL_CFLAGS += -DAVOID_TABLES
+LOCAL_CFLAGS += -O3 -fstrict-aliasing -fprefetch-loop-arrays
+
+# enable tile based decode
+LOCAL_CFLAGS += -DANDROID_TILE_BASED_DECODE
+
+ifdef NEEDS_ARM_ERRATA_754319_754320
+asm_flags := \
+ --defsym NEEDS_ARM_ERRATA_754319_754320_ASM=1
+
+LOCAL_CFLAGS+= \
+ $(foreach f,$(asm_flags),-Wa,"$(f)")
+endif
+
+LOCAL_MODULE:= libjpegtwrp
+
+LOCAL_SHARED_LIBRARIES := \
+ libcutils
+
+include $(BUILD_STATIC_LIBRARY)
+