blob: 14524883470f402c03fd991df2cbcce1f1abd0e6 [file] [log] [blame]
/*
* Copyright (C) 2016 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.
*/
#define LOG_TAG "MidiDeviceInfo"
#include <MidiDeviceInfo.h>
#include <binder/Parcel.h>
#include <log/log.h>
#include <utils/Errors.h>
#include <utils/String16.h>
namespace android {
namespace media {
namespace midi {
// The constant values need to be kept in sync with MidiDeviceInfo.java.
// static
const char* const MidiDeviceInfo::PROPERTY_NAME = "name";
const char* const MidiDeviceInfo::PROPERTY_MANUFACTURER = "manufacturer";
const char* const MidiDeviceInfo::PROPERTY_PRODUCT = "product";
const char* const MidiDeviceInfo::PROPERTY_VERSION = "version";
const char* const MidiDeviceInfo::PROPERTY_SERIAL_NUMBER = "serial_number";
const char* const MidiDeviceInfo::PROPERTY_ALSA_CARD = "alsa_card";
const char* const MidiDeviceInfo::PROPERTY_ALSA_DEVICE = "alsa_device";
String16 MidiDeviceInfo::getProperty(const char* propertyName) {
String16 value;
if (mProperties.getString(String16(propertyName), &value)) {
return value;
} else {
return String16();
}
}
#define RETURN_IF_FAILED(calledOnce) \
{ \
status_t returnStatus = calledOnce; \
if (returnStatus) { \
ALOGE("Failed at %s:%d (%s)", __FILE__, __LINE__, __func__); \
return returnStatus; \
} \
}
status_t MidiDeviceInfo::writeToParcel(Parcel* parcel) const {
// Needs to be kept in sync with code in MidiDeviceInfo.java
RETURN_IF_FAILED(parcel->writeInt32(mType));
RETURN_IF_FAILED(parcel->writeInt32(mId));
RETURN_IF_FAILED(parcel->writeInt32((int32_t)mInputPortNames.size()));
RETURN_IF_FAILED(parcel->writeInt32((int32_t)mOutputPortNames.size()));
RETURN_IF_FAILED(writeStringVector(parcel, mInputPortNames));
RETURN_IF_FAILED(writeStringVector(parcel, mOutputPortNames));
RETURN_IF_FAILED(parcel->writeInt32(mIsPrivate ? 1 : 0));
RETURN_IF_FAILED(parcel->writeInt32(mDefaultProtocol));
RETURN_IF_FAILED(mProperties.writeToParcel(parcel));
// This corresponds to "extra" properties written by Java code
RETURN_IF_FAILED(mProperties.writeToParcel(parcel));
return OK;
}
status_t MidiDeviceInfo::readFromParcel(const Parcel* parcel) {
// Needs to be kept in sync with code in MidiDeviceInfo.java
RETURN_IF_FAILED(parcel->readInt32(&mType));
RETURN_IF_FAILED(parcel->readInt32(&mId));
int32_t inputPortCount;
RETURN_IF_FAILED(parcel->readInt32(&inputPortCount));
int32_t outputPortCount;
RETURN_IF_FAILED(parcel->readInt32(&outputPortCount));
RETURN_IF_FAILED(readStringVector(parcel, &mInputPortNames, inputPortCount));
RETURN_IF_FAILED(readStringVector(parcel, &mOutputPortNames, outputPortCount));
int32_t isPrivate;
RETURN_IF_FAILED(parcel->readInt32(&isPrivate));
mIsPrivate = isPrivate == 1;
RETURN_IF_FAILED(parcel->readInt32(&mDefaultProtocol));
RETURN_IF_FAILED(mProperties.readFromParcel(parcel));
// Ignore "extra" properties as they may contain Java Parcelables
return OK;
}
status_t MidiDeviceInfo::readStringVector(
const Parcel* parcel, Vector<String16> *vectorPtr, size_t defaultLength) {
std::optional<std::vector<std::optional<String16>>> v;
status_t result = parcel->readString16Vector(&v);
if (result != OK) return result;
vectorPtr->clear();
if (v) {
for (const auto& iter : *v) {
if (iter) {
vectorPtr->push_back(*iter);
} else {
vectorPtr->push_back(String16());
}
}
} else {
vectorPtr->resize(defaultLength);
}
return OK;
}
status_t MidiDeviceInfo::writeStringVector(Parcel* parcel, const Vector<String16>& vector) const {
std::vector<String16> v;
for (size_t i = 0; i < vector.size(); ++i) {
v.push_back(vector[i]);
}
return parcel->writeString16Vector(v);
}
// Vector does not define operator==
static inline bool areVectorsEqual(const Vector<String16>& lhs, const Vector<String16>& rhs) {
if (lhs.size() != rhs.size()) return false;
for (size_t i = 0; i < lhs.size(); ++i) {
if (lhs[i] != rhs[i]) return false;
}
return true;
}
bool operator==(const MidiDeviceInfo& lhs, const MidiDeviceInfo& rhs) {
return (lhs.mType == rhs.mType && lhs.mId == rhs.mId &&
areVectorsEqual(lhs.mInputPortNames, rhs.mInputPortNames) &&
areVectorsEqual(lhs.mOutputPortNames, rhs.mOutputPortNames) &&
lhs.mProperties == rhs.mProperties &&
lhs.mIsPrivate == rhs.mIsPrivate &&
lhs.mDefaultProtocol == rhs.mDefaultProtocol);
}
} // namespace midi
} // namespace media
} // namespace android