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/*
* 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 <gui/IDisplayEventConnection.h>
#include <private/gui/BitTube.h>
#include <binder/Parcel.h>
namespace android {
enum { GET_DATA_CHANNEL = IBinder::FIRST_CALL_TRANSACTION, SET_VSYNC_RATE, REQUEST_NEXT_VSYNC };
class BpDisplayEventConnection : public BpInterface<IDisplayEventConnection> {
public:
explicit BpDisplayEventConnection(const sp<IBinder>& impl)
: BpInterface<IDisplayEventConnection>(impl) {}
~BpDisplayEventConnection() override;
status_t getDataChannel(sp<gui::BitTube>* outChannel) const override {
Parcel data, reply;
data.writeInterfaceToken(IDisplayEventConnection::getInterfaceDescriptor());
remote()->transact(GET_DATA_CHANNEL, data, &reply);
*outChannel = new gui::BitTube(reply);
return NO_ERROR;
}
status_t setVsyncRate(uint32_t count) override {
Parcel data, reply;
data.writeInterfaceToken(IDisplayEventConnection::getInterfaceDescriptor());
data.writeUint32(count);
remote()->transact(SET_VSYNC_RATE, data, &reply);
return NO_ERROR;
}
void requestNextVsync() override {
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<gui::BitTube> channel;
getDataChannel(&channel);
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
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