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Johann authored
With the intrinsics it is no longer necessary to have a stub/helper function. Change-Id: I3695961c3c94f1bb750d3b7b29716e509ebba482
2f6f955a
#### 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 \# --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 libvpx directory:# LOCAL_PATH := $(call my-dir)# include $(CLEAR_VARS)# include jni/libvpx/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 libvpx will detect at runtime the existance of NEON extension.# For this we import the 'cpufeatures' module from the NDK sources.# libvpx 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 ./libvpx/configure again, but with# --target=arm5te-android-gcc and modify the Application.mk file to# set APP_ABI := armeabi## Running ndk-build will build libvpx and include it in your project.#CONFIG_DIR := $(LOCAL_PATH)/LIBVPX_PATH := $(LOCAL_PATH)/libvpxASM_CNV_PATH_LOCAL := $(TARGET_ARCH_ABI)/ads2gasASM_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 $(CONFIG_DIR)libs-armv7-android-gcc.mk LOCAL_ARM_MODE := armelse ifeq ($(TARGET_ARCH_ABI),armeabi) include $(CONFIG_DIR)libs-armv5te-android-gcc.mk LOCAL_ARM_MODE := armelse ifeq ($(TARGET_ARCH_ABI),arm64-v8a) include $(CONFIG_DIR)libs-armv8-android-gcc.mk LOCAL_ARM_MODE := armelse ifeq ($(TARGET_ARCH_ABI),x86) include $(CONFIG_DIR)libs-x86-android-gcc.mkelse ifeq ($(TARGET_ARCH_ABI),mips)7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
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)
# -----------------------------------------------------------------------------
# Template : asm_offsets_template
# Arguments : 1: assembly offsets file to be created
# 2: c file to base assembly offsets on
# Returns : None
# Usage : $(eval $(call asm_offsets_template,<asmfile>, <srcfile>
# Rationale : Create offsets at compile time using for structures that are
# defined in c, but used in assembly functions.
# -----------------------------------------------------------------------------
define asm_offsets_template
_SRC:=$(2)
_OBJ:=$(ASM_CNV_PATH)/$$(notdir $(2)).S
_FLAGS = $$($$(my)CFLAGS) \
$$(call get-src-file-target-cflags,$(2)) \
$$(call host-c-includes,$$(LOCAL_C_INCLUDES) $$(CONFIG_DIR)) \
$$(LOCAL_CFLAGS) \
$$(NDK_APP_CFLAGS) \
$$(call host-c-includes,$$($(my)C_INCLUDES)) \
-DINLINE_ASM \
-S \
_TEXT = "Compile $$(call get-src-file-text,$(2))"
_CC = $$(TARGET_CC)
$$(eval $$(call ev-build-file))
$(1) : $$(_OBJ) $(2)
@mkdir -p $$(dir $$@)
@grep $(OFFSET_PATTERN) $$< | tr -d '\#' | $(CONFIG_DIR)$(ASM_CONVERSION) > $$@
endef
# Use ads2gas script to convert from RVCT format to GAS format. This
# puts the processed file under $(ASM_CNV_PATH). Local clean rule
# to handle removing these
ifeq ($(CONFIG_VP8_ENCODER), yes)
ASM_CNV_OFFSETS_DEPEND += $(ASM_CNV_PATH)/vp8_asm_enc_offsets.asm
endif
ifeq ($(HAVE_NEON_ASM), yes)
ASM_CNV_OFFSETS_DEPEND += $(ASM_CNV_PATH)/vpx_scale_asm_offsets.asm
endif
.PRECIOUS: %.asm.s
$(ASM_CNV_PATH)/libvpx/%.asm.s: $(LIBVPX_PATH)/%.asm $(ASM_CNV_OFFSETS_DEPEND)
@mkdir -p $(dir $@)
@$(CONFIG_DIR)$(ASM_CONVERSION) <$< > $@
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# For building *_rtcd.h, which have rules in libs.mk
TGT_ISA:=$(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)
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)/libvpx/%.s, \
$(CODEC_SRCS_ASM_NEON))
LOCAL_SRC_FILES += $(patsubst %.s, \
%.s.neon, \
$(CODEC_SRCS_ASM_NEON_ADS2GAS))
endif
LOCAL_CFLAGS += \
-DHAVE_CONFIG_H=vpx_config.h \
-I$(LIBVPX_PATH) \
-I$(ASM_CNV_PATH)
LOCAL_MODULE := libvpx
LOCAL_LDLIBS := -llog
ifeq ($(CONFIG_RUNTIME_CPU_DETECT),yes)
LOCAL_STATIC_LIBRARIES := cpufeatures
endif
# Add a dependency to force generation of the RTCD files.
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ifeq ($(CONFIG_VP8), yes)
$(foreach file, $(LOCAL_SRC_FILES), $(LOCAL_PATH)/$(file)): vp8_rtcd.h
endif
ifeq ($(CONFIG_VP9), yes)
$(foreach file, $(LOCAL_SRC_FILES), $(LOCAL_PATH)/$(file)): vp9_rtcd.h
endif
$(foreach file, $(LOCAL_SRC_FILES), $(LOCAL_PATH)/$(file)): vpx_scale_rtcd.h
ifeq ($(TARGET_ARCH_ABI),x86)
$(foreach file, $(LOCAL_SRC_FILES), $(LOCAL_PATH)/$(file)): vpx_config.asm
endif
.PHONY: clean
clean:
@echo "Clean: ads2gas files [$(TARGET_ARCH_ABI)]"
@$(RM) $(CODEC_SRCS_ASM_ADS2GAS) $(CODEC_SRCS_ASM_NEON_ADS2GAS)
@$(RM) $(patsubst %.asm, %.*, $(ASM_CNV_OFFSETS_DEPEND))
@$(RM) -r $(ASM_CNV_PATH)
@$(RM) $(CLEAN-OBJS)
include $(BUILD_SHARED_LIBRARY)
ifeq ($(HAVE_NEON), yes)
$(eval $(call asm_offsets_template,\
$(ASM_CNV_PATH)/vpx_scale_asm_offsets.asm, \
$(LIBVPX_PATH)/vpx_scale/vpx_scale_asm_offsets.c))
endif
ifeq ($(CONFIG_VP8_ENCODER), yes)
$(eval $(call asm_offsets_template,\
$(ASM_CNV_PATH)/vp8_asm_enc_offsets.asm, \
$(LIBVPX_PATH)/vp8/encoder/vp8_asm_enc_offsets.c))
endif
ifeq ($(CONFIG_RUNTIME_CPU_DETECT),yes)
$(call import-module,cpufeatures)
endif