1/* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#include <stdint.h> 18#include <sys/types.h> 19 20#include <binder/IInterface.h> 21#include <binder/Parcel.h> 22 23#include <gui/IConsumerListener.h> 24#include <gui/BufferItem.h> 25 26// --------------------------------------------------------------------------- 27namespace android { 28// --------------------------------------------------------------------------- 29 30enum { 31 ON_FRAME_AVAILABLE = IBinder::FIRST_CALL_TRANSACTION, 32 ON_BUFFER_RELEASED, 33 ON_SIDEBAND_STREAM_CHANGED, 34}; 35 36class BpConsumerListener : public BpInterface<IConsumerListener> 37{ 38public: 39 BpConsumerListener(const sp<IBinder>& impl) 40 : BpInterface<IConsumerListener>(impl) { 41 } 42 43 virtual void onFrameAvailable(const BufferItem& item) { 44 Parcel data, reply; 45 data.writeInterfaceToken(IConsumerListener::getInterfaceDescriptor()); 46 data.write(item); 47 remote()->transact(ON_FRAME_AVAILABLE, data, &reply, IBinder::FLAG_ONEWAY); 48 } 49 50 virtual void onBuffersReleased() { 51 Parcel data, reply; 52 data.writeInterfaceToken(IConsumerListener::getInterfaceDescriptor()); 53 remote()->transact(ON_BUFFER_RELEASED, data, &reply, IBinder::FLAG_ONEWAY); 54 } 55 56 virtual void onSidebandStreamChanged() { 57 Parcel data, reply; 58 data.writeInterfaceToken(IConsumerListener::getInterfaceDescriptor()); 59 remote()->transact(ON_SIDEBAND_STREAM_CHANGED, data, &reply, IBinder::FLAG_ONEWAY); 60 } 61}; 62 63IMPLEMENT_META_INTERFACE(ConsumerListener, "android.gui.IConsumerListener"); 64 65// ---------------------------------------------------------------------- 66 67status_t BnConsumerListener::onTransact( 68 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 69{ 70 switch(code) { 71 case ON_FRAME_AVAILABLE: { 72 CHECK_INTERFACE(IConsumerListener, data, reply); 73 BufferItem item; 74 data.read(item); 75 onFrameAvailable(item); 76 return NO_ERROR; } 77 case ON_BUFFER_RELEASED: { 78 CHECK_INTERFACE(IConsumerListener, data, reply); 79 onBuffersReleased(); 80 return NO_ERROR; } 81 case ON_SIDEBAND_STREAM_CHANGED: { 82 CHECK_INTERFACE(IConsumerListener, data, reply); 83 onSidebandStreamChanged(); 84 return NO_ERROR; } 85 } 86 return BBinder::onTransact(code, data, reply, flags); 87} 88 89 90// --------------------------------------------------------------------------- 91}; // namespace android 92// --------------------------------------------------------------------------- 93