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Merge "Add support for x86 to hello-neon sample"

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This commit is contained in:
Andrew Hsieh
2014-09-15 17:43:18 +00:00
committed by Gerrit Code Review
parent a8c78c384e 57c928aaba
commit 3941c44f61
3 changed files with 18 additions and 8 deletions
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5
ndk/samples/hello-neon/jni/Android.mk
View File

@@ -6,8 +6,11 @@ LOCAL_MODULE := helloneon
LOCAL_SRC_FILES := helloneon.c
ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
ifeq ($(TARGET_ARCH_ABI),$(filter $(TARGET_ARCH_ABI), armeabi-v7a x86))
LOCAL_CFLAGS := -DHAVE_NEON=1
ifeq ($(TARGET_ARCH_ABI),x86)
LOCAL_CFLAGS += -mssse3
endif
LOCAL_SRC_FILES += helloneon-intrinsics.c.neon
endif

3
ndk/samples/hello-neon/jni/Application.mk
View File

@@ -1,2 +1 @@
# Build both ARMv5TE and ARMv7-A machine code.
APP_ABI := armeabi armeabi-v7a arm64-v8a
APP_ABI := armeabi armeabi-v7a arm64-v8a x86

18
ndk/samples/hello-neon/jni/helloneon.c
View File

@@ -81,6 +81,7 @@ Java_com_example_neon_HelloNeon_stringFromJNI( JNIEnv* env,
jobject thiz )
{
char* str;
AndroidCpuFamily family;
uint64_t features;
char buffer[512];
char tryNeon = 0;
@@ -112,20 +113,27 @@ Java_com_example_neon_HelloNeon_stringFromJNI( JNIEnv* env,
strlcat(buffer, "Neon version : ", sizeof buffer);
if (android_getCpuFamily() != ANDROID_CPU_FAMILY_ARM) {
strlcat(buffer, "Not an ARM CPU !\n", sizeof buffer);
family = android_getCpuFamily();
if ((family != ANDROID_CPU_FAMILY_ARM) &&
(family != ANDROID_CPU_FAMILY_X86))
{
strlcat(buffer, "Not an ARM and not an X86 CPU !\n", sizeof buffer);
goto EXIT;
}
features = android_getCpuFeatures();
if ((features & ANDROID_CPU_ARM_FEATURE_ARMv7) == 0) {
strlcat(buffer, "Not an ARMv7 CPU !\n", sizeof buffer);
if (((features & ANDROID_CPU_ARM_FEATURE_ARMv7) == 0) &&
((features & ANDROID_CPU_X86_FEATURE_SSSE3) == 0))
{
strlcat(buffer, "Not an ARMv7 and not an X86 SSSE3 CPU !\n", sizeof buffer);
goto EXIT;
}
/* HAVE_NEON is defined in Android.mk ! */
#ifdef HAVE_NEON
if ((features & ANDROID_CPU_ARM_FEATURE_NEON) == 0) {
if (((features & ANDROID_CPU_ARM_FEATURE_NEON) == 0) &&
((features & ANDROID_CPU_X86_FEATURE_SSSE3) == 0))
{
strlcat(buffer, "CPU doesn't support NEON !\n", sizeof buffer);
goto EXIT;
}