| ## |
| ## 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 libaom for Android using the NDK. |
| # In an Android project place a libaom checkout in the jni directory. |
| # Run the configure script from the jni directory. Base libaom |
| # encoder/decoder configuration will look similar to: |
| # ./libaom/configure --target=armv7-android-gcc --disable-examples \ |
| # --sdk-path=/opt/android-ndk-r6b/ |
| # |
| # 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 libaom directory: |
| # LOCAL_PATH := $(call my-dir) |
| # include $(CLEAR_VARS) |
| # include jni/libaom/build/make/Android.mk |
| # |
| # There are currently two TARGET_ARCH_ABI targets for ARM. |
| # armeabi and armeabi-v7a. armeabi-v7a is selected by creating an |
| # Application.mk in the jni directory that contains: |
| # APP_ABI := armeabi-v7a |
| # |
| # By default libaom will detect at runtime the existance of NEON extension. |
| # For this we import the 'cpufeatures' module from the NDK sources. |
| # libaom can also be configured without this runtime detection method. |
| # Configuring with --disable-runtime-cpu-detect will assume presence of NEON. |
| # Configuring with --disable-runtime-cpu-detect --disable-neon \ |
| # --disable-neon-asm |
| # will remove any NEON dependency. |
| |
| # To change to building armeabi, run ./libaom/configure again, but with |
| # --target=armv6-android-gcc and modify the Application.mk file to |
| # set APP_ABI := armeabi |
| # |
| # Running ndk-build will build libaom and include it in your project. |
| # |
| |
| CONFIG_DIR := $(LOCAL_PATH)/ |
| LIBAOM_PATH := $(LOCAL_PATH)/libaom |
| ASM_CNV_PATH_LOCAL := $(TARGET_ARCH_ABI)/ads2gas |
| ASM_CNV_PATH := $(LOCAL_PATH)/$(ASM_CNV_PATH_LOCAL) |
| |
| # 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),armeabi) |
| include $(CONFIG_DIR)libs-armv6-android-gcc.mk |
| LOCAL_ARM_MODE := arm |
| else ifeq ($(TARGET_ARCH_ABI),arm64-v8a) |
| include $(CONFIG_DIR)libs-armv8-android-gcc.mk |
| LOCAL_ARM_MODE := arm |
| else ifeq ($(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: $(TARGET_ARCH_ABI)) |
| endif |
| |
| # Rule that is normally in Makefile created by libaom |
| # configure. Used to filter out source files based on configuration. |
| enabled=$(filter-out $($(1)-no),$($(1)-yes)) |
| |
| # Override the relative path that is defined by the libaom |
| # configure process |
| SRC_PATH_BARE := $(LIBAOM_PATH) |
| |
| # Include the list of files to be built |
| include $(LIBAOM_PATH)/libs.mk |
| |
| # Optimise the code. May want to revisit this setting in the future. |
| LOCAL_CFLAGS := -O3 |
| |
| # For x86, include the source code in the search path so it will find files |
| # like x86inc.asm and x86_abi_support.asm |
| LOCAL_ASMFLAGS := -I$(LIBAOM_PATH) |
| |
| .PRECIOUS: %.asm.s |
| $(ASM_CNV_PATH)/libaom/%.asm.s: $(LIBAOM_PATH)/%.asm |
| @mkdir -p $(dir $@) |
| @$(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 libaom/ 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, $(LOCAL_CODEC_SRCS_C), libaom/$(file)) |
| ifeq ($(TARGET_ARCH_ABI),armeabi-v7a) |
| LOCAL_SRC_FILES += $(foreach file, $(LOCAL_NEON_SRCS_C), libaom/$(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, $(LOCAL_NEON_SRCS_C), libaom/$(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, $(CODEC_SRCS_ASM_X86), libaom/$(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)/libaom/%.s, \ |
| $(CODEC_SRCS_ASM_ARM)) |
| LOCAL_SRC_FILES += $(CODEC_SRCS_ASM_ADS2GAS) |
| |
| ifeq ($(TARGET_ARCH_ABI),armeabi-v7a) |
| CODEC_SRCS_ASM_NEON = $(foreach v, \ |
| $(CODEC_SRCS_ASM_ARM_ALL),\ |
| $(if $(findstring neon,$(v)),$(v),)) |
| CODEC_SRCS_ASM_NEON_ADS2GAS = $(patsubst %.s, \ |
| $(ASM_CNV_PATH_LOCAL)/libaom/%.s, \ |
| $(CODEC_SRCS_ASM_NEON)) |
| LOCAL_SRC_FILES += $(patsubst %.s, \ |
| %.s.neon, \ |
| $(CODEC_SRCS_ASM_NEON_ADS2GAS)) |
| endif |
| |
| LOCAL_CFLAGS += \ |
| -DHAVE_CONFIG_H=vpx_config.h \ |
| -I$(LIBAOM_PATH) \ |
| -I$(ASM_CNV_PATH) |
| |
| LOCAL_MODULE := libaom |
| |
| ifeq ($(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 := $$(rtcd_dep_template_SRCS:.neon=) |
| ifeq ($(CONFIG_VP10), yes) |
| $$(rtcd_dep_template_SRCS): vp10_rtcd.h |
| endif |
| $$(rtcd_dep_template_SRCS): vpx_scale_rtcd.h |
| $$(rtcd_dep_template_SRCS): vpx_dsp_rtcd.h |
| |
| ifneq ($(findstring $(TARGET_ARCH_ABI),x86 x86_64),) |
| $$(rtcd_dep_template_SRCS): vpx_config.asm |
| endif |
| endef |
| |
| $(eval $(call rtcd_dep_template)) |
| |
| .PHONY: clean |
| clean: |
| @echo "Clean: ads2gas files [$(TARGET_ARCH_ABI)]" |
| @$(RM) $(CODEC_SRCS_ASM_ADS2GAS) $(CODEC_SRCS_ASM_NEON_ADS2GAS) |
| @$(RM) -r $(ASM_CNV_PATH) |
| @$(RM) $(CLEAN-OBJS) |
| |
| ifeq ($(ENABLE_SHARED),1) |
| include $(BUILD_SHARED_LIBRARY) |
| else |
| include $(BUILD_STATIC_LIBRARY) |
| endif |
| |
| ifeq ($(CONFIG_RUNTIME_CPU_DETECT),yes) |
| $(call import-module,cpufeatures) |
| endif |