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/*
* Copyright (C) 2021 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 "control_messages.h"
#include "log.h"
namespace screensharing {
using namespace std;
unique_ptr<ControlMessage> ControlMessage::deserialize(Base128InputStream& stream) {
int32_t type = stream.ReadInt32();
switch (type) {
case MotionEventMessage::TYPE:
return unique_ptr<ControlMessage>(MotionEventMessage::deserialize(stream));
case KeyEventMessage::TYPE:
return unique_ptr<ControlMessage>(KeyEventMessage::deserialize(stream));
case TextInputMessage::TYPE:
return unique_ptr<ControlMessage>(TextInputMessage::deserialize(stream));
case SetDeviceOrientationMessage::TYPE:
return unique_ptr<ControlMessage>(SetDeviceOrientationMessage::deserialize(stream));
case SetMaxVideoResolutionMessage::TYPE:
return unique_ptr<ControlMessage>(SetMaxVideoResolutionMessage::deserialize(stream));
default:
Log::Fatal("Unexpected message type %d", type);
}
}
MotionEventMessage* MotionEventMessage::deserialize(Base128InputStream& stream) {
uint32_t n = stream.ReadUInt32();
vector<Pointer> pointers(n);
for (auto i = 0; i < n; i++) {
Pointer& pointer = pointers.at(i);
pointer.x = stream.ReadInt32();
pointer.y = stream.ReadInt32();
pointer.pointer_id = stream.ReadInt32();
}
if (n > MAX_POINTERS) {
Log::W("Motion event with %d pointers, pointers after first %d are ignored)", n, MAX_POINTERS);
pointers.resize(MAX_POINTERS);
}
int32_t action = stream.ReadInt32();
int32_t display_id = stream.ReadInt32();
return new MotionEventMessage(move(pointers), action, display_id);
}
KeyEventMessage* KeyEventMessage::deserialize(Base128InputStream& stream) {
int32_t action = stream.ReadInt32();
int32_t keycode = stream.ReadInt32();
uint32_t meta_state = stream.ReadUInt32();
return new KeyEventMessage(action, keycode, meta_state);
}
TextInputMessage* TextInputMessage::deserialize(Base128InputStream& stream) {
u16string text = stream.ReadString16();
return new TextInputMessage(text);
}
SetDeviceOrientationMessage* SetDeviceOrientationMessage::deserialize(Base128InputStream& stream) {
uint32_t orientation = stream.ReadUInt32();
return new SetDeviceOrientationMessage(orientation);
}
SetMaxVideoResolutionMessage* SetMaxVideoResolutionMessage::deserialize(Base128InputStream& stream) {
uint32_t width = stream.ReadUInt32();
uint32_t height = stream.ReadUInt32();
return new SetMaxVideoResolutionMessage(width, height);
}
} // namespace screensharing
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