| /* |
| * Copyright 2015 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 PERSISTENT_SURFACE_H_ |
| |
| #define PERSISTENT_SURFACE_H_ |
| |
| #include <android/IGraphicBufferSource.h> |
| #include <binder/Parcel.h> |
| #include <hidl/HidlSupport.h> |
| #include <hidl/HybridInterface.h> |
| #include <gui/IGraphicBufferProducer.h> |
| #include <media/stagefright/foundation/ABase.h> |
| |
| using android::hidl::base::V1_0::IBase; |
| |
| namespace android { |
| |
| struct PersistentSurface : public RefBase { |
| PersistentSurface() {} |
| |
| // create an OMX persistent surface |
| PersistentSurface( |
| const sp<IGraphicBufferProducer>& bufferProducer, |
| const sp<IGraphicBufferSource>& bufferSource) : |
| mBufferProducer(bufferProducer), |
| mBufferSource(bufferSource) { } |
| |
| // create a HIDL persistent surface |
| PersistentSurface( |
| const sp<IGraphicBufferProducer>& bufferProducer, |
| const sp<IBase>& hidlTarget) : |
| mBufferProducer(bufferProducer), |
| mHidlTarget(hidlTarget) { } |
| |
| sp<IGraphicBufferProducer> getBufferProducer() const { |
| return mBufferProducer; |
| } |
| |
| sp<IGraphicBufferSource> getBufferSource() const { |
| return mBufferSource; |
| } |
| |
| sp<IBase> getHidlTarget() const { |
| return mHidlTarget; |
| } |
| |
| status_t writeToParcel(Parcel *parcel) const { |
| parcel->writeStrongBinder(IInterface::asBinder(mBufferProducer)); |
| // this can handle null |
| parcel->writeStrongBinder(IInterface::asBinder(mBufferSource)); |
| // write hidl target |
| if (mHidlTarget != nullptr) { |
| HalToken token; |
| bool result = createHalToken(mHidlTarget, &token); |
| parcel->writeBool(result); |
| if (result) { |
| parcel->writeByteArray(token.size(), token.data()); |
| } |
| } else { |
| parcel->writeBool(false); |
| } |
| return NO_ERROR; |
| } |
| |
| status_t readFromParcel(const Parcel *parcel) { |
| mBufferProducer = interface_cast<IGraphicBufferProducer>( |
| parcel->readStrongBinder()); |
| mBufferSource = interface_cast<IGraphicBufferSource>( |
| parcel->readStrongBinder()); |
| // read hidl target |
| bool haveHidlTarget = parcel->readBool(); |
| if (haveHidlTarget) { |
| std::vector<uint8_t> tokenVector; |
| parcel->readByteVector(&tokenVector); |
| HalToken token = HalToken(tokenVector); |
| mHidlTarget = retrieveHalInterface(token); |
| deleteHalToken(token); |
| } else { |
| mHidlTarget.clear(); |
| } |
| return NO_ERROR; |
| } |
| |
| private: |
| sp<IGraphicBufferProducer> mBufferProducer; |
| sp<IGraphicBufferSource> mBufferSource; |
| sp<IBase> mHidlTarget; |
| |
| DISALLOW_EVIL_CONSTRUCTORS(PersistentSurface); |
| }; |
| |
| } // namespace android |
| |
| #endif // PERSISTENT_SURFACE_H_ |