diff options
author | Derek Sollenberger <djsollen@google.com> | 2020-02-21 11:43:02 +0000 |
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committer | Android (Google) Code Review <android-gerrit@google.com> | 2020-02-21 11:43:02 +0000 |
commit | 76e7430baead21c67fd4c81a36774a6461d2fb99 (patch) | |
tree | 239a62b59c57b4b95d8e82943bf9a48e84439819 /libs/hwui/jni/android_nio_utils.cpp | |
parent | 1ab8e44c06ca05806a81c6737cb3f6e316d8d25a (diff) | |
parent | 2173ea286afff6766043227de0bc2d82d9595f77 (diff) |
Merge changes from topic "HWUI_JNI"
* changes:
Export symbols for the newly exposed APEX/internal headers
Remove dependence on libandroid_runtime from Bitmap.cpp
Update Region.cpp to use AParcel NDK APIs
Cleanup header and build targets for libhwui clients.
Remove dependencies on headers outside UI module
Cleanup LOG_TAG when bundled in HWUI
Move android.graphics JNI & APEX files into HWUI
Diffstat (limited to 'libs/hwui/jni/android_nio_utils.cpp')
-rw-r--r-- | libs/hwui/jni/android_nio_utils.cpp | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/libs/hwui/jni/android_nio_utils.cpp b/libs/hwui/jni/android_nio_utils.cpp new file mode 100644 index 000000000000..c2b09c1d15d7 --- /dev/null +++ b/libs/hwui/jni/android_nio_utils.cpp @@ -0,0 +1,46 @@ +/* + * Copyright (C) 2008 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. + */ + +#include "android_nio_utils.h" + +#include <nativehelper/JNIHelp.h> + +namespace android { + +AutoBufferPointer::AutoBufferPointer(JNIEnv* env, jobject nioBuffer, jboolean commit) + : fEnv(env), fCommit(commit) { + jlong pointer = jniGetNioBufferPointer(fEnv, nioBuffer); + if (pointer != 0L) { + // Buffer is backed by a direct buffer. + fArray = nullptr; + fElements = nullptr; + fPointer = reinterpret_cast<void*>(pointer); + } else { + // Buffer is backed by a managed array. + jint byteOffset = jniGetNioBufferBaseArrayOffset(fEnv, nioBuffer); + fArray = jniGetNioBufferBaseArray(fEnv, nioBuffer); + fElements = fEnv->GetPrimitiveArrayCritical(fArray, /* isCopy= */ nullptr); + fPointer = reinterpret_cast<void*>(reinterpret_cast<char*>(fElements) + byteOffset); + } +} + +AutoBufferPointer::~AutoBufferPointer() { + if (nullptr != fArray) { + fEnv->ReleasePrimitiveArrayCritical(fArray, fElements, fCommit ? 0 : JNI_ABORT); + } +} + +} // namespace android |