include/android/hardware_buffer_jni.h

/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * @file hardware_buffer_jni.h
 */

#ifndef ANDROID_HARDWARE_BUFFER_JNI_H
#define ANDROID_HARDWARE_BUFFER_JNI_H

#include <sys/cdefs.h>

#include <android/hardware_buffer.h>

#include <jni.h>

__BEGIN_DECLS

/**
 * Return the AHardwareBuffer associated with a Java HardwareBuffer object,
 * for interacting with it through native code. This method does not acquire any
 * additional reference to the AHardwareBuffer that is returned. To keep the
 * AHardwareBuffer live after the Java HardwareBuffer object got garbage
 * collected, be sure to use AHardwareBuffer_acquire() to acquire an additional
 * reference.
 */
AHardwareBuffer* AHardwareBuffer_fromHardwareBuffer(JNIEnv* env,
        jobject hardwareBufferObj);

/**
 * Return a new Java HardwareBuffer object that wraps the passed native
 * AHardwareBuffer object.
 */
jobject AHardwareBuffer_toHardwareBuffer(JNIEnv* env,
        AHardwareBuffer* hardwareBuffer);

__END_DECLS

#endif // ANDROID_HARDWARE_BUFFER_JNI_H