142 lines
4.1 KiB
C++
142 lines
4.1 KiB
C++
/*
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* Copyright (C) 2019 The LineageOS 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 "DisplayModesService"
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#include "DisplayModes.h"
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#include <android-base/logging.h>
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#include <android-base/properties.h>
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#include <fstream>
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namespace vendor {
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namespace lineage {
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namespace livedisplay {
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namespace V2_1 {
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namespace implementation {
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static constexpr const char* kDisplayModeProp = "vendor.display.mode";
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static const std::string kModeBasePath = "/sys/class/drm/card0-DSI-1/";
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static const std::string kDefaultPath = "/data/vendor/display/default_display_mode";
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const std::map<int32_t, DisplayModes::ModeInfo> DisplayModes::kModeMap = {
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{0, {"Standard", "default"}},
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{1, {"DCI P3", "native_display_p3_mode"}},
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{2, {"Wide Color", "native_display_wide_color_mode"}},
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{3, {"sRGB", "native_display_srgb_color_mode"}},
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};
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DisplayModes::DisplayModes() : mDefaultModeId(0) {
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std::ifstream defaultFile(kDefaultPath);
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std::string value;
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defaultFile >> value;
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LOG(DEBUG) << "Default file read result " << value << " fail " << defaultFile.fail();
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if (defaultFile.fail()) {
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return;
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}
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for (const auto& entry : kModeMap) {
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// Check if default mode is a valid mode
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if (value == std::to_string(entry.first)) {
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mDefaultModeId = entry.first;
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android::base::SetProperty(kDisplayModeProp, entry.second.node);
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break;
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}
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}
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}
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// Methods from ::vendor::lineage::livedisplay::V2_1::IDisplayModes follow.
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Return<void> DisplayModes::getDisplayModes(getDisplayModes_cb resultCb) {
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std::vector<V2_0::DisplayMode> modes;
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for (const auto& entry : kModeMap) {
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modes.push_back({entry.first, entry.second.name});
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}
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resultCb(modes);
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return Void();
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}
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Return<void> DisplayModes::getCurrentDisplayMode(getCurrentDisplayMode_cb resultCb) {
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int32_t currentModeId = mDefaultModeId;
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std::string value;
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for (const auto& entry : kModeMap) {
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if (entry.first == 0) {
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continue;
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}
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std::ifstream modeFile(kModeBasePath + entry.second.node);
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if (!modeFile.fail()) {
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modeFile >> value;
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if (value == "1") {
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currentModeId = entry.first;
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break;
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}
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}
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}
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resultCb({currentModeId, kModeMap.at(currentModeId).name});
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return Void();
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}
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Return<void> DisplayModes::getDefaultDisplayMode(getDefaultDisplayMode_cb resultCb) {
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resultCb({mDefaultModeId, kModeMap.at(mDefaultModeId).name});
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return Void();
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}
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Return<bool> DisplayModes::setDisplayMode(int32_t modeID, bool makeDefault) {
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// Disable all modes
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for (const auto& entry : kModeMap) {
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if (entry.first == 0) {
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continue;
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}
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std::ofstream modeFile(kModeBasePath + entry.second.node);
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if (!modeFile.fail()) {
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modeFile << 0;
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}
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}
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const auto iter = kModeMap.find(modeID);
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if (iter == kModeMap.end()) {
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return false;
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}
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if (modeID != 0) {
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std::ofstream modeFile(kModeBasePath + iter->second.node);
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modeFile << 1;
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if (modeFile.fail()) {
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return false;
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}
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android::base::SetProperty(kDisplayModeProp, iter->second.node);
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}
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if (makeDefault) {
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std::ofstream defaultFile(kDefaultPath);
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defaultFile << iter->first;
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if (defaultFile.fail()) {
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return false;
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}
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mDefaultModeId = iter->first;
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}
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return true;
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}
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} // namespace implementation
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} // namespace V2_1
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} // namespace livedisplay
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} // namespace lineage
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} // namespace vendor
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