android_device_samsung_msm8.../livedisplay/DisplayModes.cpp

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/*
* Copyright (C) 2019 The LineageOS 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 "DisplayModesService"
#include "DisplayModes.h"
#include <android-base/logging.h>
#include <fstream>
namespace vendor {
namespace lineage {
namespace livedisplay {
namespace V2_0 {
namespace samsung {
static constexpr const char* kModePath = "/sys/class/mdnie/mdnie/mode";
static constexpr const char* kModeMaxPath = "/sys/class/mdnie/mdnie/mode_max";
static constexpr const char* kDefaultPath = "/data/vendor/display/.displaymodedefault";
const std::map<int32_t, std::string> DisplayModes::kModeMap = {
// clang-format off
{0, "Dynamic"},
{1, "Standard"},
{2, "Natural"},
{3, "Cinema"},
{4, "Adaptive"},
{5, "Reading"},
// clang-format on
};
DisplayModes::DisplayModes() : mDefaultModeId(0) {
std::ifstream defaultFile(kDefaultPath);
int value;
defaultFile >> value;
LOG(DEBUG) << "Default file read result " << value << " fail " << defaultFile.fail();
if (defaultFile.fail()) {
return;
}
for (const auto& entry : kModeMap) {
if (value == entry.first) {
mDefaultModeId = entry.first;
break;
}
}
setDisplayMode(mDefaultModeId, false);
}
bool DisplayModes::isSupported() {
std::ofstream modeFile(kModePath);
return modeFile.good();
}
// Methods from ::vendor::lineage::livedisplay::V2_0::IDisplayModes follow.
Return<void> DisplayModes::getDisplayModes(getDisplayModes_cb resultCb) {
std::ifstream maxModeFile(kModeMaxPath);
int value;
std::vector<DisplayMode> modes;
if (!maxModeFile.fail()) {
maxModeFile >> value;
} else {
value = kModeMap.size();
}
for (const auto& entry : kModeMap) {
if (entry.first < value) modes.push_back({entry.first, entry.second});
}
resultCb(modes);
return Void();
}
Return<void> DisplayModes::getCurrentDisplayMode(getCurrentDisplayMode_cb resultCb) {
int32_t currentModeId = mDefaultModeId;
std::ifstream modeFile(kModePath);
int value;
modeFile >> value;
if (!modeFile.fail()) {
for (const auto& entry : kModeMap) {
if (value == entry.first) {
currentModeId = entry.first;
break;
}
}
}
resultCb({currentModeId, kModeMap.at(currentModeId)});
return Void();
}
Return<void> DisplayModes::getDefaultDisplayMode(getDefaultDisplayMode_cb resultCb) {
resultCb({mDefaultModeId, kModeMap.at(mDefaultModeId)});
return Void();
}
Return<bool> DisplayModes::setDisplayMode(int32_t modeID, bool makeDefault) {
const auto iter = kModeMap.find(modeID);
if (iter == kModeMap.end()) {
return false;
}
std::ofstream modeFile(kModePath);
modeFile << iter->first;
if (modeFile.fail()) {
return false;
}
if (makeDefault) {
std::ofstream defaultFile(kDefaultPath);
defaultFile << iter->first;
if (defaultFile.fail()) {
return false;
}
mDefaultModeId = iter->first;
}
return true;
}
// Methods from ::android::hidl::base::V1_0::IBase follow.
} // namespace samsung
} // namespace V2_0
} // namespace livedisplay
} // namespace lineage
} // namespace vendor