Commit d8305731 authored by Fritz Koenig's avatar Fritz Koenig

Add makefile for building libvpx for Android.

Android.mk file for using the Android NDK build
system to compile. Adds option for SDK path to
use the compiler that comes with android for testing
compiler compliance.

Change-Id: I5fd17cb76e3ed631758d3f392e62ae1a050d0d10
parent 0e06bc81
......@@ -42,11 +42,13 @@ COMPILING THE APPLICATIONS/LIBRARIES:
--help output of the configure script. As of this writing, the list of
available targets is:
armv5te-android-gcc
armv5te-linux-rvct
armv5te-linux-gcc
armv6-darwin-gcc
armv6-linux-rvct
armv6-linux-gcc
armv7-android-gcc
armv7-linux-rvct
armv7-linux-gcc
mips32-linux-gcc
......
##
## 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 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
#
# To change to building armeabi, run ./libvpx/configure again, but with
# --target=arm5te-android-gcc and 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)/libvpx
ASM_CNV_PATH_LOCAL := $(TARGET_ARCH_ABI)/ads2gas
ASM_CNV_PATH := $(LOCAL_PATH)/$(ASM_CNV_PATH_LOCAL)
# Makefiles created by the libvpx configure process
# This will need to be fixed to handle x86.
ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
include $(CONFIG_DIR)/libs-armv7-android-gcc.mk
else
include $(CONFIG_DIR)/libs-armv5te-android-gcc.mk
endif
# Rule that is normally in Makefile created by libvpx
# configure. Used to filter out source files based on configuration.
enabled=$(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
# Want arm, not thumb, optimized
LOCAL_ARM_MODE := arm
LOCAL_CFLAGS := -O3
# -----------------------------------------------------------------------------
# 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 -w EQU $$< | tr -d '\#' | $(CONFIG_DIR)/$(ASM_CONVERSION) > $$@
endef
# Use ads2gas script to convert from RVCT format to GAS format. This passes
# puts the processed file under $(ASM_CNV_PATH). Local clean rule
# to handle removing these
ASM_CNV_OFFSETS_DEPEND = $(ASM_CNV_PATH)/asm_com_offsets.asm
ifeq ($(CONFIG_VP8_DECODER), yes)
ASM_CNV_OFFSETS_DEPEND += $(ASM_CNV_PATH)/asm_dec_offsets.asm
endif
ifeq ($(CONFIG_VP8_ENCODER), yes)
ASM_CNV_OFFSETS_DEPEND += $(ASM_CNV_PATH)/asm_enc_offsets.asm
endif
.PRECIOUS: %.asm.s
$(ASM_CNV_PATH)/libvpx/%.asm.s: $(LIBVPX_PATH)/%.asm $(ASM_CNV_OFFSETS_DEPEND)
@mkdir -p $(dir $@)
@$(CONFIG_DIR)/$(ASM_CONVERSION) <$< > $@
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.
CODEC_SRCS_C = $(filter %.c, $(CODEC_SRCS_UNIQUE))
LOCAL_CODEC_SRCS_C = $(filter-out vpx_config.c, $(CODEC_SRCS_C))
LOCAL_SRC_FILES += $(foreach file, $(LOCAL_CODEC_SRCS_C), libvpx/$(file))
# Pull out assembly files, splitting NEON from the rest. This is
# done to specify that the NEON assembly files use NEON assembler flags.
CODEC_SRCS_ASM_ALL = $(filter %.asm.s, $(CODEC_SRCS_UNIQUE))
CODEC_SRCS_ASM = $(foreach v, \
$(CODEC_SRCS_ASM_ALL), \
$(if $(findstring neon,$(v)),,$(v)))
CODEC_SRCS_ASM_ADS2GAS = $(patsubst %.s, \
$(ASM_CNV_PATH_LOCAL)/libvpx/%.s, \
$(CODEC_SRCS_ASM))
LOCAL_SRC_FILES += $(CODEC_SRCS_ASM_ADS2GAS)
ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
CODEC_SRCS_ASM_NEON = $(foreach v, \
$(CODEC_SRCS_ASM_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$(ASM_CNV_PATH)
LOCAL_MODULE := libvpx
LOCAL_LDLIBS := -llog
LOCAL_STATIC_LIBRARIES := cpufeatures
.PHONY: clean
clean:
@echo "Clean: ads2gas files [$(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)
include $(BUILD_SHARED_LIBRARY)
$(eval $(call asm_offsets_template,\
$(ASM_CNV_PATH)/asm_com_offsets.asm, \
$(LIBVPX_PATH)/vp8/common/asm_com_offsets.c))
ifeq ($(CONFIG_VP8_DECODER), yes)
$(eval $(call asm_offsets_template,\
$(ASM_CNV_PATH)/asm_dec_offsets.asm, \
$(LIBVPX_PATH)/vp8/decoder/asm_dec_offsets.c))
endif
ifeq ($(CONFIG_VP8_ENCODER), yes)
$(eval $(call asm_offsets_template,\
$(ASM_CNV_PATH)/asm_enc_offsets.asm, \
$(LIBVPX_PATH)/vp8/encoder/asm_enc_offsets.c))
endif
$(call import-module,cpufeatures)
......@@ -477,7 +477,11 @@ process_common_cmdline() {
--libdir=*)
libdir="${optval}"
;;
--libc|--as|--prefix|--libdir)
--sdk-path=*)
[ -d "${optval}" ] || die "Not a directory: ${optval}"
sdk_path="${optval}"
;;
--libc|--as|--prefix|--libdir|--sdk-path)
die "Option ${opt} requires argument"
;;
--help|-h) show_help
......@@ -728,8 +732,45 @@ process_common_toolchain() {
disable multithread
disable os_support
;;
android*)
SDK_PATH=${sdk_path}
COMPILER_LOCATION=`find "${SDK_PATH}" \
-name "arm-linux-androideabi-gcc*" -print -quit`
TOOLCHAIN_PATH=${COMPILER_LOCATION%/*}/arm-linux-androideabi-
CC=${TOOLCHAIN_PATH}gcc
AR=${TOOLCHAIN_PATH}ar
LD=${TOOLCHAIN_PATH}gcc
AS=${TOOLCHAIN_PATH}as
STRIP=${TOOLCHAIN_PATH}strip
NM=${TOOLCHAIN_PATH}nm
if [ -z "${alt_libc}" ]; then
alt_libc=`find "${SDK_PATH}" -name arch-arm -print | \
awk '{n = split($0,a,"/"); \
split(a[n-1],b,"-"); \
print $0 " " b[2]}' | \
sort -g -k 2 | \
awk '{ print $1 }' | tail -1`
fi
add_cflags "--sysroot=${alt_libc}"
add_ldflags "--sysroot=${alt_libc}"
enable pic
soft_enable realtime_only
if enabled armv7
then
enable runtime_cpu_detect
fi
;;
darwin*)
SDK_PATH=/Developer/Platforms/iPhoneOS.platform/Developer
if [ -z "${sdk_path}" ]; then
SDK_PATH=/Developer/Platforms/iPhoneOS.platform/Developer
else
SDK_PATH=${sdk_path}
fi
TOOLCHAIN_PATH=${SDK_PATH}/usr/bin
CC=${TOOLCHAIN_PATH}/gcc
AR=${TOOLCHAIN_PATH}/ar
......@@ -747,10 +788,11 @@ process_common_toolchain() {
add_cflags -arch ${tgt_isa}
add_ldflags -arch_only ${tgt_isa}
add_cflags "-isysroot ${SDK_PATH}/SDKs/iPhoneOS5.0.sdk"
if [ -z "${alt_libc}" ]; then
alt_libc=${SDK_PATH}/SDKs/iPhoneOS5.0.sdk
fi
# This should be overridable
alt_libc=${SDK_PATH}/SDKs/iPhoneOS5.0.sdk
add_cflags "-isysroot ${alt_libc}"
# Add the paths for the alternate libc
for d in usr/include; do
......@@ -976,6 +1018,7 @@ EOF
if enabled multithread; then
case ${toolchain} in
*-win*);;
*-android-gcc);;
*) check_header pthread.h && add_extralibs -lpthread
esac
fi
......
......@@ -25,6 +25,7 @@ Advanced options:
${toggle_unit_tests} build unit tests
--libc=PATH path to alternate libc
--as={yasm|nasm|auto} use specified assembler [auto, yasm preferred]
--sdk-path=PATH path to root of sdk (iOS, android builds only)
${toggle_fast_unaligned} don't use unaligned accesses, even when
supported by hardware [auto]
${toggle_codec_srcs} in/exclude codec library source code
......@@ -80,6 +81,7 @@ EOF
# all_platforms is a list of all supported target platforms. Maintain
# alphabetically by architecture, generic-gnu last.
all_platforms="${all_platforms} armv5te-android-gcc"
all_platforms="${all_platforms} armv5te-linux-rvct"
all_platforms="${all_platforms} armv5te-linux-gcc"
all_platforms="${all_platforms} armv5te-none-rvct"
......@@ -87,6 +89,7 @@ all_platforms="${all_platforms} armv6-darwin-gcc"
all_platforms="${all_platforms} armv6-linux-rvct"
all_platforms="${all_platforms} armv6-linux-gcc"
all_platforms="${all_platforms} armv6-none-rvct"
all_platforms="${all_platforms} armv7-android-gcc" #neon Cortex-A8
all_platforms="${all_platforms} armv7-darwin-gcc" #neon Cortex-A8
all_platforms="${all_platforms} armv7-linux-rvct" #neon Cortex-A8
all_platforms="${all_platforms} armv7-linux-gcc" #neon Cortex-A8
......
......@@ -100,6 +100,34 @@ int arm_cpu_caps(void)
}
#elif defined(__linux__)
#if defined(__ANDROID__)
#include <cpu-features.h>
int arm_cpu_caps(void)
{
int flags;
int mask;
uint64_t features;
if (!arm_cpu_env_flags(&flags))
{
return flags;
}
mask = arm_cpu_env_mask();
features = android_getCpuFeatures();
#if defined(HAVE_ARMV5TE)
flags |= HAS_EDSP;
#endif
#if defined(HAVE_ARMV6)
flags |= HAS_MEDIA;
#endif
#if defined(HAVE_ARMV7)
if (features & ANDROID_CPU_ARM_FEATURE_NEON)
flags |= HAS_NEON;
#endif
return flags & mask;
}
#else // !defined(__ANDROID__)
#include <stdio.h>
int arm_cpu_caps(void)
......@@ -160,7 +188,7 @@ int arm_cpu_caps(void)
}
return flags & mask;
}
#endif // defined(__linux__)
#elif !CONFIG_RUNTIME_CPU_DETECT
int arm_cpu_caps(void)
......
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