| /* |
| * 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. |
| */ |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| |
| #include <utils/Errors.h> |
| #include <utils/RefBase.h> |
| #include <utils/Timers.h> |
| |
| #include <binder/Parcel.h> |
| #include <binder/IInterface.h> |
| |
| #include <gui/IDisplayEventConnection.h> |
| #include <gui/BitTube.h> |
| |
| namespace android { |
| // ---------------------------------------------------------------------------- |
| |
| enum { |
| GET_DATA_CHANNEL = IBinder::FIRST_CALL_TRANSACTION, |
| SET_VSYNC_RATE, |
| REQUEST_NEXT_VSYNC |
| }; |
| |
| class BpDisplayEventConnection : public BpInterface<IDisplayEventConnection> |
| { |
| public: |
| BpDisplayEventConnection(const sp<IBinder>& impl) |
| : BpInterface<IDisplayEventConnection>(impl) |
| { |
| } |
| |
| virtual ~BpDisplayEventConnection(); |
| |
| virtual sp<BitTube> getDataChannel() const |
| { |
| Parcel data, reply; |
| data.writeInterfaceToken(IDisplayEventConnection::getInterfaceDescriptor()); |
| remote()->transact(GET_DATA_CHANNEL, data, &reply); |
| return new BitTube(reply); |
| } |
| |
| virtual void setVsyncRate(uint32_t count) { |
| Parcel data, reply; |
| data.writeInterfaceToken(IDisplayEventConnection::getInterfaceDescriptor()); |
| data.writeUint32(count); |
| remote()->transact(SET_VSYNC_RATE, data, &reply); |
| } |
| |
| virtual void requestNextVsync() { |
| Parcel data, reply; |
| data.writeInterfaceToken(IDisplayEventConnection::getInterfaceDescriptor()); |
| remote()->transact(REQUEST_NEXT_VSYNC, data, &reply, IBinder::FLAG_ONEWAY); |
| } |
| }; |
| |
| // Out-of-line virtual method definition to trigger vtable emission in this |
| // translation unit (see clang warning -Wweak-vtables) |
| BpDisplayEventConnection::~BpDisplayEventConnection() {} |
| |
| IMPLEMENT_META_INTERFACE(DisplayEventConnection, "android.gui.DisplayEventConnection"); |
| |
| // ---------------------------------------------------------------------------- |
| |
| status_t BnDisplayEventConnection::onTransact( |
| uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) |
| { |
| switch(code) { |
| case GET_DATA_CHANNEL: { |
| CHECK_INTERFACE(IDisplayEventConnection, data, reply); |
| sp<BitTube> channel(getDataChannel()); |
| channel->writeToParcel(reply); |
| return NO_ERROR; |
| } |
| case SET_VSYNC_RATE: { |
| CHECK_INTERFACE(IDisplayEventConnection, data, reply); |
| setVsyncRate(data.readUint32()); |
| return NO_ERROR; |
| } |
| case REQUEST_NEXT_VSYNC: { |
| CHECK_INTERFACE(IDisplayEventConnection, data, reply); |
| requestNextVsync(); |
| return NO_ERROR; |
| } |
| } |
| return BBinder::onTransact(code, data, reply, flags); |
| } |
| |
| // ---------------------------------------------------------------------------- |
| }; // namespace android |