dadf350551
Filter out files ending in _neon.c and append .neon so the Android build system knows to apply -mfpu=neon Change-Id: Ib67277e5920bfcaeda7c4aa16cd1001b11d59305
217 lines
7.6 KiB
Makefile
217 lines
7.6 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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# There are currently two TARGET_ARCH_ABI targets for ARM.
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# armeabi and armeabi-v7a. armeabi-v7a is selected by creating an
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# Application.mk in the jni directory that contains:
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# APP_ABI := armeabi-v7a
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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 will remove any
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# NEON dependency.
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# To change to building armeabi, run ./libvpx/configure again, but with
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# --target=arm5te-android-gcc and modify the Application.mk file to
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# set APP_ABI := armeabi
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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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# Makefiles created by the libvpx configure process
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# This will need to be fixed to handle x86.
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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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else
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include $(CONFIG_DIR)libs-armv5te-android-gcc.mk
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endif
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# Rule that is normally in Makefile created by libvpx
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# configure. Used to filter out source files based on configuration.
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enabled=$(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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# Want arm, not thumb, optimized
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LOCAL_ARM_MODE := arm
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LOCAL_CFLAGS := -O3
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# -----------------------------------------------------------------------------
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# Template : asm_offsets_template
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# Arguments : 1: assembly offsets file to be created
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# 2: c file to base assembly offsets on
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# Returns : None
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# Usage : $(eval $(call asm_offsets_template,<asmfile>, <srcfile>
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# Rationale : Create offsets at compile time using for structures that are
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# defined in c, but used in assembly functions.
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# -----------------------------------------------------------------------------
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define asm_offsets_template
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_SRC:=$(2)
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_OBJ:=$(ASM_CNV_PATH)/$$(notdir $(2)).S
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_FLAGS = $$($$(my)CFLAGS) \
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$$(call get-src-file-target-cflags,$(2)) \
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$$(call host-c-includes,$$(LOCAL_C_INCLUDES) $$(CONFIG_DIR)) \
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$$(LOCAL_CFLAGS) \
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$$(NDK_APP_CFLAGS) \
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$$(call host-c-includes,$$($(my)C_INCLUDES)) \
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-DINLINE_ASM \
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-S \
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_TEXT = "Compile $$(call get-src-file-text,$(2))"
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_CC = $$(TARGET_CC)
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$$(eval $$(call ev-build-file))
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$(1) : $$(_OBJ) $(2)
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@mkdir -p $$(dir $$@)
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@grep $(OFFSET_PATTERN) $$< | tr -d '\#' | $(CONFIG_DIR)$(ASM_CONVERSION) > $$@
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endef
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# Use ads2gas script to convert from RVCT format to GAS format. This passes
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# puts the processed file under $(ASM_CNV_PATH). Local clean rule
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# to handle removing these
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ifeq ($(CONFIG_VP8_ENCODER), yes)
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ASM_CNV_OFFSETS_DEPEND += $(ASM_CNV_PATH)/vp8_asm_enc_offsets.asm
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endif
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ifeq ($(HAVE_NEON), yes)
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ASM_CNV_OFFSETS_DEPEND += $(ASM_CNV_PATH)/vpx_scale_asm_offsets.asm
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endif
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.PRECIOUS: %.asm.s
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$(ASM_CNV_PATH)/libvpx/%.asm.s: $(LIBVPX_PATH)/%.asm $(ASM_CNV_OFFSETS_DEPEND)
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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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LOCAL_SRC_FILES += $(foreach file, $(LOCAL_NEON_SRCS_C), libvpx/$(file).neon)
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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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CODEC_SRCS_ASM_ALL = $(filter %.asm.s, $(CODEC_SRCS_UNIQUE))
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CODEC_SRCS_ASM = $(foreach v, \
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$(CODEC_SRCS_ASM_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))
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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_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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LOCAL_LDLIBS := -llog
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ifeq ($(CONFIG_RUNTIME_CPU_DETECT),yes)
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LOCAL_STATIC_LIBRARIES := cpufeatures
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endif
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# Add a dependency to force generation of the RTCD files.
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ifeq ($(CONFIG_VP8), yes)
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$(foreach file, $(LOCAL_SRC_FILES), $(LOCAL_PATH)/$(file)): vp8_rtcd.h
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endif
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ifeq ($(CONFIG_VP9), yes)
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$(foreach file, $(LOCAL_SRC_FILES), $(LOCAL_PATH)/$(file)): vp9_rtcd.h
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endif
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$(foreach file, $(LOCAL_SRC_FILES), $(LOCAL_PATH)/$(file)): vpx_scale_rtcd.h
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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) $(patsubst %.asm, %.*, $(ASM_CNV_OFFSETS_DEPEND))
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@$(RM) -r $(ASM_CNV_PATH)
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@$(RM) $(CLEAN-OBJS)
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include $(BUILD_SHARED_LIBRARY)
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ifeq ($(HAVE_NEON), yes)
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$(eval $(call asm_offsets_template,\
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$(ASM_CNV_PATH)/vpx_scale_asm_offsets.asm, \
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$(LIBVPX_PATH)/vpx_scale/vpx_scale_asm_offsets.c))
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endif
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ifeq ($(CONFIG_VP8_ENCODER), yes)
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$(eval $(call asm_offsets_template,\
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$(ASM_CNV_PATH)/vp8_asm_enc_offsets.asm, \
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$(LIBVPX_PATH)/vp8/encoder/vp8_asm_enc_offsets.c))
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endif
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ifeq ($(CONFIG_RUNTIME_CPU_DETECT),yes)
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$(call import-module,cpufeatures)
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endif
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