192 lines
6.6 KiB
Makefile
192 lines
6.6 KiB
Makefile
##
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## Copyright (c) 2012 The WebM project authors. All Rights Reserved.
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##
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## Use of this source code is governed by a BSD-style license
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## that can be found in the LICENSE file in the root of the source
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## tree. An additional intellectual property rights grant can be found
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## in the file PATENTS. All contributing project authors may
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## be found in the AUTHORS file in the root of the source tree.
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##
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#
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# This file is to be used for compiling libvpx for Android using the NDK.
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# In an Android project place a libvpx checkout in the jni directory.
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# Run the configure script from the jni directory. Base libvpx
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# encoder/decoder configuration will look similar to:
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# ./libvpx/configure --target=armv7-android-gcc --disable-examples \
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# --sdk-path=/opt/android-ndk-r6b/
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#
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# When targeting Android, realtime-only is enabled by default. This can
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# be overridden by adding the command line flag:
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# --disable-realtime-only
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#
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# This will create .mk files that contain variables that contain the
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# source files to compile.
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#
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# Place an Android.mk file in the jni directory that references the
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# Android.mk file in the libvpx directory:
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# LOCAL_PATH := $(call my-dir)
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# include $(CLEAR_VARS)
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# include jni/libvpx/build/make/Android.mk
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#
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# By default libvpx will detect at runtime the existance of NEON extension.
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# For this we import the 'cpufeatures' module from the NDK sources.
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# libvpx can also be configured without this runtime detection method.
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# Configuring with --disable-runtime-cpu-detect will assume presence of NEON.
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# Configuring with --disable-runtime-cpu-detect --disable-neon \
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# --disable-neon-asm
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# will remove any NEON dependency.
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#
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# Running ndk-build will build libvpx and include it in your project.
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#
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CONFIG_DIR := $(LOCAL_PATH)/
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LIBVPX_PATH := $(LOCAL_PATH)/libvpx
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ASM_CNV_PATH_LOCAL := $(TARGET_ARCH_ABI)/ads2gas
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ASM_CNV_PATH := $(LOCAL_PATH)/$(ASM_CNV_PATH_LOCAL)
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# Use the makefiles generated by upstream configure to determine which files to
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# build. Also set any architecture-specific flags.
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ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
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include $(CONFIG_DIR)libs-armv7-android-gcc.mk
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LOCAL_ARM_MODE := arm
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else ifeq ($(TARGET_ARCH_ABI),arm64-v8a)
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include $(CONFIG_DIR)libs-armv8-android-gcc.mk
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LOCAL_ARM_MODE := arm
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else ifeq ($(TARGET_ARCH_ABI),x86)
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include $(CONFIG_DIR)libs-x86-android-gcc.mk
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else ifeq ($(TARGET_ARCH_ABI),x86_64)
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include $(CONFIG_DIR)libs-x86_64-android-gcc.mk
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else ifeq ($(TARGET_ARCH_ABI),mips)
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include $(CONFIG_DIR)libs-mips-android-gcc.mk
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else
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$(error Not a supported TARGET_ARCH_ABI: $(TARGET_ARCH_ABI))
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endif
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# Rule that is normally in Makefile created by libvpx
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# configure. Used to filter out source files based on configuration.
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enabled=$(filter-out $($(1)-no),$($(1)-yes))
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# Override the relative path that is defined by the libvpx
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# configure process
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SRC_PATH_BARE := $(LIBVPX_PATH)
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# Include the list of files to be built
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include $(LIBVPX_PATH)/libs.mk
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# Optimise the code. May want to revisit this setting in the future.
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LOCAL_CFLAGS := -O3
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# For x86, include the source code in the search path so it will find files
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# like x86inc.asm and x86_abi_support.asm
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LOCAL_ASMFLAGS := -I$(LIBVPX_PATH)
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.PRECIOUS: %.asm.s
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$(ASM_CNV_PATH)/libvpx/%.asm.s: $(LIBVPX_PATH)/%.asm
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@mkdir -p $(dir $@)
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@$(CONFIG_DIR)$(ASM_CONVERSION) <$< > $@
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# For building *_rtcd.h, which have rules in libs.mk
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TGT_ISA:=$(word 1, $(subst -, ,$(TOOLCHAIN)))
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target := libs
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LOCAL_SRC_FILES += vpx_config.c
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# Remove duplicate entries
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CODEC_SRCS_UNIQUE = $(sort $(CODEC_SRCS))
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# Pull out C files. vpx_config.c is in the immediate directory and
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# so it does not need libvpx/ prefixed like the rest of the source files.
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# The neon files with intrinsics need to have .neon appended so the proper
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# flags are applied.
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CODEC_SRCS_C = $(filter %.c, $(CODEC_SRCS_UNIQUE))
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LOCAL_NEON_SRCS_C = $(filter %_neon.c, $(CODEC_SRCS_C))
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LOCAL_CODEC_SRCS_C = $(filter-out vpx_config.c %_neon.c, $(CODEC_SRCS_C))
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LOCAL_SRC_FILES += $(foreach file, $(LOCAL_CODEC_SRCS_C), libvpx/$(file))
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ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
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LOCAL_SRC_FILES += $(foreach file, $(LOCAL_NEON_SRCS_C), libvpx/$(file).neon)
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else # If there are neon sources then we are building for arm64 and do not need to specify .neon
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LOCAL_SRC_FILES += $(foreach file, $(LOCAL_NEON_SRCS_C), libvpx/$(file))
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endif
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# Pull out assembly files, splitting NEON from the rest. This is
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# done to specify that the NEON assembly files use NEON assembler flags.
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# x86 assembly matches %.asm, arm matches %.asm.s
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# x86:
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CODEC_SRCS_ASM_X86 = $(filter %.asm, $(CODEC_SRCS_UNIQUE))
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LOCAL_SRC_FILES += $(foreach file, $(CODEC_SRCS_ASM_X86), libvpx/$(file))
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# arm:
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CODEC_SRCS_ASM_ARM_ALL = $(filter %.asm.s, $(CODEC_SRCS_UNIQUE))
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CODEC_SRCS_ASM_ARM = $(foreach v, \
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$(CODEC_SRCS_ASM_ARM_ALL), \
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$(if $(findstring neon,$(v)),,$(v)))
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CODEC_SRCS_ASM_ADS2GAS = $(patsubst %.s, \
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$(ASM_CNV_PATH_LOCAL)/libvpx/%.s, \
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$(CODEC_SRCS_ASM_ARM))
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LOCAL_SRC_FILES += $(CODEC_SRCS_ASM_ADS2GAS)
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ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
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CODEC_SRCS_ASM_NEON = $(foreach v, \
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$(CODEC_SRCS_ASM_ARM_ALL),\
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$(if $(findstring neon,$(v)),$(v),))
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CODEC_SRCS_ASM_NEON_ADS2GAS = $(patsubst %.s, \
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$(ASM_CNV_PATH_LOCAL)/libvpx/%.s, \
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$(CODEC_SRCS_ASM_NEON))
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LOCAL_SRC_FILES += $(patsubst %.s, \
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%.s.neon, \
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$(CODEC_SRCS_ASM_NEON_ADS2GAS))
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endif
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LOCAL_CFLAGS += \
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-DHAVE_CONFIG_H=vpx_config.h \
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-I$(LIBVPX_PATH) \
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-I$(ASM_CNV_PATH)
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LOCAL_MODULE := libvpx
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ifeq ($(CONFIG_RUNTIME_CPU_DETECT),yes)
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LOCAL_STATIC_LIBRARIES := cpufeatures
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endif
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# Add a dependency to force generation of the RTCD files.
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define rtcd_dep_template
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rtcd_dep_template_SRCS := $(addprefix $(LOCAL_PATH)/, $(LOCAL_SRC_FILES))
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rtcd_dep_template_SRCS := $$(rtcd_dep_template_SRCS:.neon=)
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ifeq ($(CONFIG_VP8), yes)
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$$(rtcd_dep_template_SRCS): vp8_rtcd.h
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endif
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ifeq ($(CONFIG_VP9), yes)
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$$(rtcd_dep_template_SRCS): vp9_rtcd.h
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endif
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$$(rtcd_dep_template_SRCS): vpx_scale_rtcd.h
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$$(rtcd_dep_template_SRCS): vpx_dsp_rtcd.h
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ifneq ($(findstring $(TARGET_ARCH_ABI),x86 x86_64),)
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$$(rtcd_dep_template_SRCS): vpx_config.asm
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endif
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endef
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$(eval $(call rtcd_dep_template))
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.PHONY: clean
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clean:
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@echo "Clean: ads2gas files [$(TARGET_ARCH_ABI)]"
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@$(RM) $(CODEC_SRCS_ASM_ADS2GAS) $(CODEC_SRCS_ASM_NEON_ADS2GAS)
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@$(RM) -r $(ASM_CNV_PATH)
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@$(RM) $(CLEAN-OBJS)
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ifeq ($(ENABLE_SHARED),1)
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include $(BUILD_SHARED_LIBRARY)
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else
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include $(BUILD_STATIC_LIBRARY)
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endif
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ifeq ($(CONFIG_RUNTIME_CPU_DETECT),yes)
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$(call import-module,cpufeatures)
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endif
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