ref: cab60a023412e1163bca47229054bc0a30f2c71f
dir: /build/make/Android.mk/
## ## Copyright (c) 2012 The WebM project authors. All Rights Reserved. ## ## Use of this source code is governed by a BSD-style license ## that can be found in the LICENSE file in the root of the source ## tree. An additional intellectual property rights grant can be found ## in the file PATENTS. All contributing project authors may ## be found in the AUTHORS file in the root of the source tree. ## # # This file is to be used for compiling libvpx for Android using the NDK. # In an Android project place a libvpx checkout in the jni directory. # Run the configure script from the jni directory. Base libvpx # encoder/decoder configuration will look similar to: # ./libvpx/configure --target=armv7-android-gcc --disable-examples \ # --enable-external-build # # When targeting Android, realtime-only is enabled by default. This can # be overridden by adding the command line flag: # --disable-realtime-only # # This will create .mk files that contain variables that contain the # source files to compile. # # Place an Android.mk file in the jni directory that references the # Android.mk file in the libvpx directory: # LOCAL_PATH := $(call my-dir) # include $(CLEAR_VARS) # include jni/libvpx/build/make/Android.mk # # By default libvpx will use the 'cpufeatures' module from the NDK. This allows # the library to be built with all available optimizations (SSE2->AVX512 for # x86, NEON for arm, DSPr2 for mips). This can be disabled with # --disable-runtime-cpu-detect # but the resulting library *must* be run on devices supporting all of the # enabled extensions. They can be disabled individually with # --disable-{sse2, sse3, ssse3, sse4_1, avx, avx2, avx512} # --disable-neon[-asm] # --disable-{dspr2, msa} # # Running ndk-build will build libvpx and include it in your project. # CONFIG_DIR := $(LOCAL_PATH)/ LIBVPX_PATH := $(LOCAL_PATH)/libvpx ASM_CNV_PATH_LOCAL := $(TARGET_ARCH_ABI)/ads2gas ASM_CNV_PATH := $(LOCAL_PATH)/$(ASM_CNV_PATH_LOCAL) ifneq ($(V),1) qexec := @ endif # Use the makefiles generated by upstream configure to determine which files to # build. Also set any architecture-specific flags. ifeq ($(TARGET_ARCH_ABI),armeabi-v7a) include $(CONFIG_DIR)libs-armv7-android-gcc.mk LOCAL_ARM_MODE := arm else ifeq ($(TARGET_ARCH_ABI),arm64-v8a) include $(CONFIG_DIR)libs-arm64-android-gcc.mk LOCAL_ARM_MODE := arm else ifeq ($(TARGET_ARCH_ABI),x86) include $(CONFIG_DIR)libs-x86-android-gcc.mk else ifeq ($(TARGET_ARCH_ABI),x86_64) include $(CONFIG_DIR)libs-x86_64-android-gcc.mk else ifeq ($(TARGET_ARCH_ABI),mips) include $(CONFIG_DIR)libs-mips-android-gcc.mk else $(error Not a supported TARGET_ARCH_ABI: $(TARGET_ARCH_ABI)) endif # Rule that is normally in Makefile created by libvpx # configure. Used to filter out source files based on configuration. enabled=$(filter-out $($(1)-no),$($(1)-yes)) # Override the relative path that is defined by the libvpx # configure process SRC_PATH_BARE := $(LIBVPX_PATH) # Include the list of files to be built include $(LIBVPX_PATH)/libs.mk # Optimise the code. May want to revisit this setting in the future. LOCAL_CFLAGS := -O3 # For x86, include the source code in the search path so it will find files # like x86inc.asm and x86_abi_support.asm LOCAL_ASMFLAGS := -I$(LIBVPX_PATH) .PRECIOUS: %.asm.S $(ASM_CNV_PATH)/libvpx/%.asm.S: $(LIBVPX_PATH)/%.asm $(qexec)mkdir -p $(dir $@) $(qexec)$(CONFIG_DIR)$(ASM_CONVERSION) <$< > $@ # For building *_rtcd.h, which have rules in libs.mk TGT_ISA:=$(word 1, $(subst -, ,$(TOOLCHAIN))) target := libs LOCAL_SRC_FILES += vpx_config.c # Remove duplicate entries CODEC_SRCS_UNIQUE = $(sort $(CODEC_SRCS)) # Pull out C files. vpx_config.c is in the immediate directory and # so it does not need libvpx/ prefixed like the rest of the source files. # The neon files with intrinsics need to have .neon appended so the proper # flags are applied. CODEC_SRCS_C = $(filter %.c, $(CODEC_SRCS_UNIQUE)) LOCAL_NEON_SRCS_C = $(filter %_neon.c, $(CODEC_SRCS_C)) LOCAL_CODEC_SRCS_C = $(filter-out vpx_config.c %_neon.c, $(CODEC_SRCS_C)) LOCAL_SRC_FILES += $(foreach file, $(LOCAL_CODEC_SRCS_C), libvpx/$(file)) ifeq ($(TARGET_ARCH_ABI),armeabi-v7a) LOCAL_SRC_FILES += $(foreach file, $(LOCAL_NEON_SRCS_C), libvpx/$(file).neon) else # If there are neon sources then we are building for arm64 and do not need to specify .neon LOCAL_SRC_FILES += $(foreach file, $(LOCAL_NEON_SRCS_C), libvpx/$(file)) endif # Pull out assembly files, splitting NEON from the rest. This is # done to specify that the NEON assembly files use NEON assembler flags. # x86 assembly matches %.asm, arm matches %.asm.S # x86: CODEC_SRCS_ASM_X86 = $(filter %.asm, $(CODEC_SRCS_UNIQUE)) LOCAL_SRC_FILES += $(foreach file, $(CODEC_SRCS_ASM_X86), libvpx/$(file)) # arm: CODEC_SRCS_ASM_ARM_ALL = $(filter %.asm.S, $(CODEC_SRCS_UNIQUE)) CODEC_SRCS_ASM_ARM = $(foreach v, \ $(CODEC_SRCS_ASM_ARM_ALL), \ $(if $(findstring neon,$(v)),,$(v))) CODEC_SRCS_ASM_ADS2GAS = $(patsubst %.S, \ $(ASM_CNV_PATH_LOCAL)/libvpx/%.S, \ $(CODEC_SRCS_ASM_ARM)) LOCAL_SRC_FILES += $(CODEC_SRCS_ASM_ADS2GAS) ifeq ($(TARGET_ARCH_ABI),armeabi-v7a) ASM_INCLUDES := vpx_dsp/arm/idct_neon.asm.S CODEC_SRCS_ASM_NEON = $(foreach v, \ $(CODEC_SRCS_ASM_ARM_ALL),\ $(if $(findstring neon,$(v)),$(v),)) CODEC_SRCS_ASM_NEON := $(filter-out $(addprefix %, $(ASM_INCLUDES)), \ $(CODEC_SRCS_ASM_NEON)) CODEC_SRCS_ASM_NEON_ADS2GAS = $(patsubst %.S, \ $(ASM_CNV_PATH_LOCAL)/libvpx/%.S, \ $(CODEC_SRCS_ASM_NEON)) LOCAL_SRC_FILES += $(patsubst %.S, \ %.S.neon, \ $(CODEC_SRCS_ASM_NEON_ADS2GAS)) NEON_ASM_TARGETS = $(patsubst %.S, \ $(ASM_CNV_PATH)/libvpx/%.S, \ $(CODEC_SRCS_ASM_NEON)) # add a dependency to the full path to the ads2gas output to ensure the # includes are converted first. ifneq ($(strip $(NEON_ASM_TARGETS)),) $(NEON_ASM_TARGETS): $(addprefix $(ASM_CNV_PATH)/libvpx/, $(ASM_INCLUDES)) endif endif LOCAL_CFLAGS += \ -DHAVE_CONFIG_H=vpx_config.h \ -I$(LIBVPX_PATH) \ -I$(ASM_CNV_PATH) \ -I$(ASM_CNV_PATH)/libvpx LOCAL_MODULE := libvpx ifeq ($(CONFIG_RUNTIME_CPU_DETECT),yes) LOCAL_STATIC_LIBRARIES := cpufeatures endif # Add a dependency to force generation of the RTCD files. define rtcd_dep_template rtcd_dep_template_SRCS := $(addprefix $(LOCAL_PATH)/, $(LOCAL_SRC_FILES)) rtcd_dep_template_SRCS := $$(rtcd_dep_template_SRCS:.neon=) ifeq ($(CONFIG_VP8), yes) $$(rtcd_dep_template_SRCS): vp8_rtcd.h endif ifeq ($(CONFIG_VP9), yes) $$(rtcd_dep_template_SRCS): vp9_rtcd.h endif $$(rtcd_dep_template_SRCS): vpx_scale_rtcd.h $$(rtcd_dep_template_SRCS): vpx_dsp_rtcd.h rtcd_dep_template_CONFIG_ASM_ABIS := x86 x86_64 armeabi-v7a ifneq ($$(findstring $(TARGET_ARCH_ABI),$$(rtcd_dep_template_CONFIG_ASM_ABIS)),) $$(rtcd_dep_template_SRCS): vpx_config.asm endif endef $(eval $(call rtcd_dep_template)) .PHONY: clean clean: @echo "Clean: ads2gas files [$(TARGET_ARCH_ABI)]" $(qexec)$(RM) $(CODEC_SRCS_ASM_ADS2GAS) $(CODEC_SRCS_ASM_NEON_ADS2GAS) $(qexec)$(RM) -r $(ASM_CNV_PATH) $(qexec)$(RM) $(CLEAN-OBJS) ifeq ($(ENABLE_SHARED),1) LOCAL_CFLAGS += -fPIC include $(BUILD_SHARED_LIBRARY) else include $(BUILD_STATIC_LIBRARY) endif ifeq ($(CONFIG_RUNTIME_CPU_DETECT),yes) $(call import-module,android/cpufeatures) endif