| /* |
| * Copyright (C) 2011 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. |
| */ |
| |
| #ifndef ANDROID_FILTEFW_JNI_NATIVE_BUFFER_H |
| #define ANDROID_FILTEFW_JNI_NATIVE_BUFFER_H |
| |
| #include <jni.h> |
| |
| // Internal Buffer Unwrapping functions //////////////////////////////////////////////////////////// |
| /** |
| * Given a Java NativeBuffer instance, get access to the underlying C pointer and its size. The |
| * size argument may be NULL, in which case the object is not queried for its size. |
| **/ |
| char* GetJBufferData(JNIEnv* env, jobject buffer, int* size); |
| |
| /** |
| * Attach a given C data buffer and its size to a given allocated Java NativeBuffer instance. After |
| * this call, the java instance will have the given C buffer as its backing. Note, that the Java |
| * instance contains the flag on whether or not it owns the buffer or not, so make sure it is what |
| * you expect. |
| **/ |
| bool AttachDataToJBuffer(JNIEnv* env, jobject buffer, char* data, int size); |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| // JNI Wrappers //////////////////////////////////////////////////////////////////////////////////// |
| JNIEXPORT jboolean JNICALL |
| Java_android_filterfw_core_NativeBuffer_allocate(JNIEnv* env, jobject thiz, jint size); |
| |
| JNIEXPORT jboolean JNICALL |
| Java_android_filterfw_core_NativeBuffer_deallocate(JNIEnv* env, jobject thiz, jboolean owns_data); |
| |
| JNIEXPORT jboolean JNICALL |
| Java_android_filterfw_core_NativeBuffer_nativeCopyTo(JNIEnv* env, jobject thiz, jobject new_buffer); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif // ANDROID_FILTEFW_JNI_NATIVE_BUFFER_H |