Merge "Adds APIs to extract/import arrays of primitive Java types out of/into a HwBlob." (33569ca4) · Commits · e / os / android_frameworks_base

core/java/android/os/HwBlob.java

+20 −0

Original line number	Diff line number	Diff line
		@@ -43,6 +43,18 @@ public class HwBlob {
		public native final double getDouble(long offset);
		public native final String getString(long offset);

		/**
		The copyTo... methods copy the blob's data, starting from the given
		byte offset, into the array. A total of "size" _elements_ are copied.
		*/
		public native final void copyToBoolArray(long offset, boolean[] array, int size);
		public native final void copyToInt8Array(long offset, byte[] array, int size);
		public native final void copyToInt16Array(long offset, short[] array, int size);
		public native final void copyToInt32Array(long offset, int[] array, int size);
		public native final void copyToInt64Array(long offset, long[] array, int size);
		public native final void copyToFloatArray(long offset, float[] array, int size);
		public native final void copyToDoubleArray(long offset, double[] array, int size);

		public native final void putBool(long offset, boolean x);
		public native final void putInt8(long offset, byte x);
		public native final void putInt16(long offset, short x);
		@@ -52,6 +64,14 @@ public class HwBlob {
		public native final void putDouble(long offset, double x);
		public native final void putString(long offset, String x);

		public native final void putBoolArray(long offset, boolean[] x);
		public native final void putInt8Array(long offset, byte[] x);
		public native final void putInt16Array(long offset, short[] x);
		public native final void putInt32Array(long offset, int[] x);
		public native final void putInt64Array(long offset, long[] x);
		public native final void putFloatArray(long offset, float[] x);
		public native final void putDoubleArray(long offset, double[] x);

		public native final void putBlob(long offset, HwBlob blob);

		public native final long handle();

core/jni/android_os_HwBlob.cpp

+168 −6

Original line number	Diff line number	Diff line
		@@ -60,12 +60,12 @@ sp<JHwBlob> JHwBlob::SetNativeContext(
		JNIEnv *env, jobject thiz, const sp<JHwBlob> &context) {
		sp<JHwBlob> old = (JHwBlob *)env->GetLongField(thiz, gFields.contextID);

		if (context != NULL) {
		context->incStrong(NULL /* id */);
		if (context != nullptr) {
		context->incStrong(nullptr /* id */);
		}

		if (old != NULL) {
		old->decStrong(NULL /* id */);
		if (old != nullptr) {
		old->decStrong(nullptr /* id */);
		}

		env->SetLongField(thiz, gFields.contextID, (long)context.get());
		@@ -150,6 +150,10 @@ const void *JHwBlob::data() const {
		return mBuffer;
		}

		void *JHwBlob::data() {
		return mBuffer;
		}

		size_t JHwBlob::size() const {
		return mSize;
		}
		@@ -242,8 +246,8 @@ using namespace android;
		static void releaseNativeContext(void *nativeContext) {
		sp<JHwBlob> parcel = (JHwBlob *)nativeContext;

		if (parcel != NULL) {
		parcel->decStrong(NULL /* id */);
		if (parcel != nullptr) {
		parcel->decStrong(nullptr /* id */);
		}
		}

		@@ -313,6 +317,82 @@ static jstring JHwBlob_native_getString(
		return env->NewStringUTF(s->c_str());
		}

		#define DEFINE_BLOB_ARRAY_COPIER(Suffix,Type,NewType) \
		static void JHwBlob_native_copyTo ## Suffix ## Array( \
		JNIEnv *env, \
		jobject thiz, \
		jlong offset, \
		Type ## Array array, \
		jint size) { \
		if (array == nullptr) { \
		jniThrowException(env, "java/lang/NullPointerException", nullptr); \
		return; \
		} \
		\
		if (env->GetArrayLength(array) < size) { \
		signalExceptionForError(env, BAD_VALUE); \
		return; \
		} \
		\
		sp<JHwBlob> blob = JHwBlob::GetNativeContext(env, thiz); \
		\
		if ((offset + size * sizeof(Type)) > blob->size()) { \
		signalExceptionForError(env, -ERANGE); \
		return; \
		} \
		\
		env->Set ## NewType ## ArrayRegion( \
		array, \
		0 /* start */, \
		size, \
		reinterpret_cast<const Type *>( \
		static_cast<const uint8_t *>(blob->data()) + offset)); \
		}

		static void JHwBlob_native_copyToBoolArray(
		JNIEnv *env,
		jobject thiz,
		jlong offset,
		jbooleanArray array,
		jint size) {
		if (array == nullptr) {
		jniThrowException(env, "java/lang/NullPointerException", nullptr);
		return;
		}

		if (env->GetArrayLength(array) < size) {
		signalExceptionForError(env, BAD_VALUE);
		return;
		}

		sp<JHwBlob> blob = JHwBlob::GetNativeContext(env, thiz);

		if ((offset + size * sizeof(bool)) > blob->size()) {
		signalExceptionForError(env, -ERANGE);
		return;
		}

		const bool *src =
		reinterpret_cast<const bool *>(
		static_cast<const uint8_t *>(blob->data()) + offset);

		jboolean dst = env->GetBooleanArrayElements(array, nullptr / isCopy */);

		for (jint i = 0; i < size; ++i) {
		dst[i] = src[i];
		}

		env->ReleaseBooleanArrayElements(array, dst, 0 /* mode */);
		dst = nullptr;
		}

		DEFINE_BLOB_ARRAY_COPIER(Int8,jbyte,Byte)
		DEFINE_BLOB_ARRAY_COPIER(Int16,jshort,Short)
		DEFINE_BLOB_ARRAY_COPIER(Int32,jint,Int)
		DEFINE_BLOB_ARRAY_COPIER(Int64,jlong,Long)
		DEFINE_BLOB_ARRAY_COPIER(Float,jfloat,Float)
		DEFINE_BLOB_ARRAY_COPIER(Double,jdouble,Double)

		#define DEFINE_BLOB_PUTTER(Suffix,Type) \
		static void JHwBlob_native_put ## Suffix( \
		JNIEnv *env, jobject thiz, jlong offset, Type x) { \
		@@ -375,6 +455,72 @@ static void JHwBlob_native_putString(
		blob->putBlob(offset + hidl_string::kOffsetOfBuffer, subBlob);
		}

		#define DEFINE_BLOB_ARRAY_PUTTER(Suffix,Type,NewType) \
		static void JHwBlob_native_put ## Suffix ## Array( \
		JNIEnv *env, jobject thiz, jlong offset, Type ## Array array) { \
		\
		if (array == nullptr) { \
		jniThrowException(env, "java/lang/NullPointerException", nullptr); \
		return; \
		} \
		\
		sp<JHwBlob> blob = JHwBlob::GetNativeContext(env, thiz); \
		\
		jsize len = env->GetArrayLength(array); \
		\
		Type *src = \
		env->Get ## NewType ## ArrayElements(array, nullptr /* isCopy */); \
		\
		status_t err = blob->write(offset, src, len * sizeof(Type)); \
		\
		env->Release ## NewType ## ArrayElements(array, src, 0 /* mode */); \
		src = nullptr; \
		\
		if (err != OK) { \
		signalExceptionForError(env, err); \
		} \
		}

		DEFINE_BLOB_ARRAY_PUTTER(Int8,jbyte,Byte)
		DEFINE_BLOB_ARRAY_PUTTER(Int16,jshort,Short)
		DEFINE_BLOB_ARRAY_PUTTER(Int32,jint,Int)
		DEFINE_BLOB_ARRAY_PUTTER(Int64,jlong,Long)
		DEFINE_BLOB_ARRAY_PUTTER(Float,jfloat,Float)
		DEFINE_BLOB_ARRAY_PUTTER(Double,jdouble,Double)

		static void JHwBlob_native_putBoolArray(
		JNIEnv *env, jobject thiz, jlong offset, jbooleanArray array) {

		if (array == nullptr) {
		jniThrowException(env, "java/lang/NullPointerException", nullptr);
		return;
		}

		sp<JHwBlob> blob = JHwBlob::GetNativeContext(env, thiz);

		jsize len = env->GetArrayLength(array);

		if ((offset + len * sizeof(bool)) > blob->size()) {
		signalExceptionForError(env, -ERANGE);
		return;
		}

		const jboolean *src =
		env->GetBooleanArrayElements(array, nullptr /* isCopy */);

		bool dst = reinterpret_cast<bool >(
		static_cast<uint8_t *>(blob->data()) + offset);

		for (jsize i = 0; i < len; ++i) {
		dst[i] = src[i];
		}

		env->ReleaseBooleanArrayElements(
		array, const_cast<jboolean >(src), 0 / mode */);

		src = nullptr;
		}

		static void JHwBlob_native_putBlob(
		JNIEnv *env, jobject thiz, jlong offset, jobject blobObj) {
		if (blobObj == nullptr) {
		@@ -413,6 +559,14 @@ static JNINativeMethod gMethods[] = {
		{ "getDouble", "(J)D", (void *)JHwBlob_native_getDouble },
		{ "getString", "(J)Ljava/lang/String;", (void *)JHwBlob_native_getString },

		{ "copyToBoolArray", "(J[ZI)V", (void *)JHwBlob_native_copyToBoolArray },
		{ "copyToInt8Array", "(J[BI)V", (void *)JHwBlob_native_copyToInt8Array },
		{ "copyToInt16Array", "(J[SI)V", (void *)JHwBlob_native_copyToInt16Array },
		{ "copyToInt32Array", "(J[II)V", (void *)JHwBlob_native_copyToInt32Array },
		{ "copyToInt64Array", "(J[JI)V", (void *)JHwBlob_native_copyToInt64Array },
		{ "copyToFloatArray", "(J[FI)V", (void *)JHwBlob_native_copyToFloatArray },
		{ "copyToDoubleArray", "(J[DI)V", (void *)JHwBlob_native_copyToDoubleArray },

		{ "putBool", "(JZ)V", (void *)JHwBlob_native_putBool },
		{ "putInt8", "(JB)V", (void *)JHwBlob_native_putInt8 },
		{ "putInt16", "(JS)V", (void *)JHwBlob_native_putInt16 },
		@@ -422,6 +576,14 @@ static JNINativeMethod gMethods[] = {
		{ "putDouble", "(JD)V", (void *)JHwBlob_native_putDouble },
		{ "putString", "(JLjava/lang/String;)V", (void *)JHwBlob_native_putString },

		{ "putBoolArray", "(J[Z)V", (void *)JHwBlob_native_putBoolArray },
		{ "putInt8Array", "(J[B)V", (void *)JHwBlob_native_putInt8Array },
		{ "putInt16Array", "(J[S)V", (void *)JHwBlob_native_putInt16Array },
		{ "putInt32Array", "(J[I)V", (void *)JHwBlob_native_putInt32Array },
		{ "putInt64Array", "(J[J)V", (void *)JHwBlob_native_putInt64Array },
		{ "putFloatArray", "(J[F)V", (void *)JHwBlob_native_putFloatArray },
		{ "putDoubleArray", "(J[D)V", (void *)JHwBlob_native_putDoubleArray },

		{ "putBlob", "(JL" PACKAGE_PATH "/HwBlob;)V",
		(void *)JHwBlob_native_putBlob },

core/jni/android_os_HwBlob.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -50,6 +50,8 @@ struct JHwBlob : public RefBase {
		size_t offset, const android::hardware::hidl_string **s) const;

		const void *data() const;
		void *data();

		size_t size() const;

		status_t putBlob(size_t offset, const sp<JHwBlob> &blob);