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fix Android standalone toolchain build

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add a check for cpu-features.h and rework some of the ifdef's around
android + neon. for android builds with cpu-features enabled the
*_neon.c files will still need to be flagged correctly (with e.g.,
.c.neon in Android.mk) to properly build them.

BUG=webp:353

Change-Id: I905ce305af0a204e560b915d8665093a3edaceb9
This commit is contained in:
James Zern 2017-08-01 18:33:50 -07:00
parent c71b68ac45
commit c6d1db4b36
5 changed files with 17 additions and 8 deletions
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1
Android.mk
View File

@ -25,6 +25,7 @@ ifneq ($(findstring armeabi-v7a, $(TARGET_ARCH_ABI)),)
# specifically.
NEON := c.neon
USE_CPUFEATURES := yes
WEBP_CFLAGS += -DHAVE_CPU_FEATURES_H
else
NEON := c
endif

1
CMakeLists.txt
View File

@ -50,6 +50,7 @@ if(ANDROID)
set(WEBP_DEP_INCLUDE_DIRS ${WEBP_DEP_INCLUDE_DIRS}
${ANDROID_NDK}/sources/android/cpufeatures
)
add_definitions(-DHAVE_CPU_FEATURES_H)
endif()
################################################################################

1
build.gradle
View File

@ -84,6 +84,7 @@ model {
// Check for NEON usage.
if (getTargetPlatform() == "arm") {
NEON = "c.neon"
cCompiler.define "HAVE_CPU_FEATURES_H"
} else {
NEON = "c"
}

10
configure.ac
View File

@ -244,9 +244,13 @@ AS_IF([test "x$enable_neon" != "xno"], [
NEON_FLAGS=""],
[AC_DEFINE(WEBP_HAVE_NEON_RTCD, [1],
[Set to 1 if runtime detection of NEON is enabled])])])
;;
esac
AC_SUBST([NEON_FLAGS])])
case "$host_os" in
*android*) AC_CHECK_HEADERS([cpu-features.h]) ;;
esac
;;
esac
AC_SUBST([NEON_FLAGS])])
dnl === CLEAR_LIBVARS([var_pfx])
dnl === Clears <var_pfx>_{INCLUDES,LIBS}.

12
src/dsp/dsp.h
View File

@ -71,18 +71,20 @@ extern "C" {
#define WEBP_USE_AVX2
#endif
#if defined(__ANDROID__) && defined(__ARM_ARCH_7A__)
#define WEBP_ANDROID_NEON // Android targets that might support NEON
#endif
// The intrinsics currently cause compiler errors with arm-nacl-gcc and the
// inline assembly would need to be modified for use with Native Client.
#if (defined(__ARM_NEON__) || defined(WEBP_ANDROID_NEON) || \
#if (defined(__ARM_NEON__) || \
defined(__aarch64__) || defined(WEBP_HAVE_NEON)) && \
!defined(__native_client__)
#define WEBP_USE_NEON
#endif
#if !defined(WEBP_USE_NEON) && defined(__ANDROID__) && \
defined(__ARM_ARCH_7A__) && defined(HAVE_CPU_FEATURES_H)
#define WEBP_ANDROID_NEON // Android targets that may have NEON
#define WEBP_USE_NEON
#endif
#if defined(_MSC_VER) && _MSC_VER >= 1700 && defined(_M_ARM)
#define WEBP_USE_NEON
#define WEBP_USE_INTRINSICS