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Diffstat (limited to 'third_party/aom/build/make/Android.mk')
| -rw-r--r-- | third_party/aom/build/make/Android.mk | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/third_party/aom/build/make/Android.mk b/third_party/aom/build/make/Android.mk new file mode 100644 index 0000000000..6757b1f595 --- /dev/null +++ b/third_party/aom/build/make/Android.mk @@ -0,0 +1,201 @@ +## +## Copyright (c) 2016, Alliance for Open Media. All rights reserved +## +## This source code is subject to the terms of the BSD 2 Clause License and +## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License +## was not distributed with this source code in the LICENSE file, you can +## obtain it at www.aomedia.org/license/software. If the Alliance for Open +## Media Patent License 1.0 was not distributed with this source code in the +## PATENTS file, you can obtain it at www.aomedia.org/license/patent. +## + + +# +# 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 += aom_config.c + +# Remove duplicate entries +CODEC_SRCS_UNIQUE = $(sort $(CODEC_SRCS)) + +# Pull out C files. aom_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 aom_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, \ + $(CODEC_SRCS_ASM_NEON_ADS2GAS)) +endif + +LOCAL_CFLAGS += \ + -DHAVE_CONFIG_H=aom_config.h \ + -I$(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 := $$(rtcd_dep_template_SRCS:.neon=) +ifeq ($(CONFIG_AV1), yes) +$$(rtcd_dep_template_SRCS): av1_rtcd.h +endif +$$(rtcd_dep_template_SRCS): aom_scale_rtcd.h +$$(rtcd_dep_template_SRCS): aom_dsp_rtcd.h + +ifneq ($(findstring $(TARGET_ARCH_ABI),x86 x86_64),) +$$(rtcd_dep_template_SRCS): aom_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 |