/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define LOG_TAG "MidiDeviceInfo"
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#include <media/MidiDeviceInfo.h>
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#include <binder/Parcel.h>
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#include <log/log.h>
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#include <utils/Errors.h>
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#include <utils/String16.h>
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namespace android {
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namespace media {
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namespace midi {
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// The constant values need to be kept in sync with MidiDeviceInfo.java.
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// static
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const char* const MidiDeviceInfo::PROPERTY_NAME = "name";
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const char* const MidiDeviceInfo::PROPERTY_MANUFACTURER = "manufacturer";
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const char* const MidiDeviceInfo::PROPERTY_PRODUCT = "product";
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const char* const MidiDeviceInfo::PROPERTY_VERSION = "version";
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const char* const MidiDeviceInfo::PROPERTY_SERIAL_NUMBER = "serial_number";
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const char* const MidiDeviceInfo::PROPERTY_ALSA_CARD = "alsa_card";
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const char* const MidiDeviceInfo::PROPERTY_ALSA_DEVICE = "alsa_device";
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String16 MidiDeviceInfo::getProperty(const char* propertyName) {
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String16 value;
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if (mProperties.getString(String16(propertyName), &value)) {
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return value;
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} else {
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return String16();
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}
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}
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#define RETURN_IF_FAILED(calledOnce) \
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{ \
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status_t returnStatus = calledOnce; \
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if (returnStatus) { \
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ALOGE("Failed at %s:%d (%s)", __FILE__, __LINE__, __func__); \
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return returnStatus; \
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} \
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}
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status_t MidiDeviceInfo::writeToParcel(Parcel* parcel) const {
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// Needs to be kept in sync with code in MidiDeviceInfo.java
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RETURN_IF_FAILED(parcel->writeInt32(mType));
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RETURN_IF_FAILED(parcel->writeInt32(mId));
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RETURN_IF_FAILED(parcel->writeInt32((int32_t)mInputPortNames.size()));
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RETURN_IF_FAILED(parcel->writeInt32((int32_t)mOutputPortNames.size()));
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RETURN_IF_FAILED(writeStringVector(parcel, mInputPortNames));
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RETURN_IF_FAILED(writeStringVector(parcel, mOutputPortNames));
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RETURN_IF_FAILED(parcel->writeInt32(mIsPrivate ? 1 : 0));
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RETURN_IF_FAILED(mProperties.writeToParcel(parcel));
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// This corresponds to "extra" properties written by Java code
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RETURN_IF_FAILED(mProperties.writeToParcel(parcel));
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return OK;
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}
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status_t MidiDeviceInfo::readFromParcel(const Parcel* parcel) {
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// Needs to be kept in sync with code in MidiDeviceInfo.java
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RETURN_IF_FAILED(parcel->readInt32(&mType));
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RETURN_IF_FAILED(parcel->readInt32(&mId));
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int32_t inputPortCount;
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RETURN_IF_FAILED(parcel->readInt32(&inputPortCount));
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int32_t outputPortCount;
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RETURN_IF_FAILED(parcel->readInt32(&outputPortCount));
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RETURN_IF_FAILED(readStringVector(parcel, &mInputPortNames, inputPortCount));
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RETURN_IF_FAILED(readStringVector(parcel, &mOutputPortNames, outputPortCount));
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int32_t isPrivate;
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RETURN_IF_FAILED(parcel->readInt32(&isPrivate));
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mIsPrivate = isPrivate == 1;
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RETURN_IF_FAILED(mProperties.readFromParcel(parcel));
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// Ignore "extra" properties as they may contain Java Parcelables
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return OK;
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}
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status_t MidiDeviceInfo::readStringVector(
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const Parcel* parcel, Vector<String16> *vectorPtr, size_t defaultLength) {
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std::unique_ptr<std::vector<std::unique_ptr<String16>>> v;
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status_t result = parcel->readString16Vector(&v);
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if (result != OK) return result;
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vectorPtr->clear();
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if (v.get() != nullptr) {
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for (const auto& iter : *v) {
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if (iter.get() != nullptr) {
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vectorPtr->push_back(*iter);
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} else {
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vectorPtr->push_back(String16());
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}
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}
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} else {
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vectorPtr->resize(defaultLength);
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}
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return OK;
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}
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status_t MidiDeviceInfo::writeStringVector(Parcel* parcel, const Vector<String16>& vector) const {
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std::vector<String16> v;
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for (size_t i = 0; i < vector.size(); ++i) {
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v.push_back(vector[i]);
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}
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return parcel->writeString16Vector(v);
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}
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// Vector does not define operator==
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static inline bool areVectorsEqual(const Vector<String16>& lhs, const Vector<String16>& rhs) {
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if (lhs.size() != rhs.size()) return false;
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for (size_t i = 0; i < lhs.size(); ++i) {
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if (lhs[i] != rhs[i]) return false;
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}
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return true;
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}
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bool operator==(const MidiDeviceInfo& lhs, const MidiDeviceInfo& rhs) {
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return (lhs.mType == rhs.mType && lhs.mId == rhs.mId &&
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areVectorsEqual(lhs.mInputPortNames, rhs.mInputPortNames) &&
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areVectorsEqual(lhs.mOutputPortNames, rhs.mOutputPortNames) &&
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lhs.mProperties == rhs.mProperties &&
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lhs.mIsPrivate == rhs.mIsPrivate);
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}
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} // namespace midi
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} // namespace media
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} // namespace android
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