| /* |
| * 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 <locale> |
| #include <regex> |
| |
| #include "../Macros.h" |
| |
| #include "LightInputMapper.h" |
| #include "input/NamedEnum.h" |
| |
| // Log detailed debug messages about input device lights. |
| static constexpr bool DEBUG_LIGHT_DETAILS = false; |
| |
| namespace android { |
| |
| static inline int32_t getAlpha(int32_t color) { |
| return (color >> 24) & 0xff; |
| } |
| |
| static inline int32_t getRed(int32_t color) { |
| return (color >> 16) & 0xff; |
| } |
| |
| static inline int32_t getGreen(int32_t color) { |
| return (color >> 8) & 0xff; |
| } |
| |
| static inline int32_t getBlue(int32_t color) { |
| return color & 0xff; |
| } |
| |
| static inline int32_t toArgb(int32_t brightness, int32_t red, int32_t green, int32_t blue) { |
| return (brightness & 0xff) << 24 | (red & 0xff) << 16 | (green & 0xff) << 8 | (blue & 0xff); |
| } |
| |
| /** |
| * Light input mapper owned by InputReader device, implements the native API for querying input |
| * lights, getting and setting the lights brightness and color, by interacting with EventHub |
| * devices. |
| * TODO b/180342233: Reconsider the inputflinger design to accommodate the device class |
| * like lights and battery. |
| */ |
| LightInputMapper::LightInputMapper(InputDeviceContext& deviceContext) |
| : InputMapper(deviceContext) {} |
| |
| LightInputMapper::~LightInputMapper() {} |
| |
| std::optional<std::int32_t> LightInputMapper::Light::getRawLightBrightness(int32_t rawLightId) { |
| std::optional<RawLightInfo> rawInfo = context.getRawLightInfo(rawLightId); |
| std::optional<int32_t> ret = context.getLightBrightness(rawLightId); |
| if (!rawInfo.has_value() || !ret.has_value()) { |
| return std::nullopt; |
| } |
| int brightness = ret.value(); |
| |
| // If the light node doesn't have max brightness, use the default max brightness. |
| int rawMaxBrightness = rawInfo->maxBrightness.value_or(MAX_BRIGHTNESS); |
| float ratio = MAX_BRIGHTNESS / rawMaxBrightness; |
| // Scale the returned brightness in [0, rawMaxBrightness] to [0, 255] |
| if (rawMaxBrightness != MAX_BRIGHTNESS) { |
| brightness = brightness * ratio; |
| } |
| if (DEBUG_LIGHT_DETAILS) { |
| ALOGD("getRawLightBrightness rawLightId %d brightness 0x%x ratio %.2f", rawLightId, |
| brightness, ratio); |
| } |
| return brightness; |
| } |
| |
| void LightInputMapper::Light::setRawLightBrightness(int32_t rawLightId, int32_t brightness) { |
| std::optional<RawLightInfo> rawInfo = context.getRawLightInfo(rawLightId); |
| if (!rawInfo.has_value()) { |
| return; |
| } |
| // If the light node doesn't have max brightness, use the default max brightness. |
| int rawMaxBrightness = rawInfo->maxBrightness.value_or(MAX_BRIGHTNESS); |
| float ratio = MAX_BRIGHTNESS / rawMaxBrightness; |
| // Scale the requested brightness in [0, 255] to [0, rawMaxBrightness] |
| if (rawMaxBrightness != MAX_BRIGHTNESS) { |
| brightness = ceil(brightness / ratio); |
| } |
| if (DEBUG_LIGHT_DETAILS) { |
| ALOGD("setRawLightBrightness rawLightId %d brightness 0x%x ratio %.2f", rawLightId, |
| brightness, ratio); |
| } |
| context.setLightBrightness(rawLightId, brightness); |
| } |
| |
| bool LightInputMapper::SingleLight::setLightColor(int32_t color) { |
| int32_t brightness = getAlpha(color); |
| setRawLightBrightness(rawId, brightness); |
| |
| return true; |
| } |
| |
| bool LightInputMapper::RgbLight::setLightColor(int32_t color) { |
| // Compose color value as per: |
| // https://developer.android.com/reference/android/graphics/Color?hl=en |
| // int color = (A & 0xff) << 24 | (R & 0xff) << 16 | (G & 0xff) << 8 | (B & 0xff); |
| // The alpha component is used to scale the R,G,B leds brightness, with the ratio to |
| // MAX_BRIGHTNESS. |
| brightness = getAlpha(color); |
| int32_t red = 0; |
| int32_t green = 0; |
| int32_t blue = 0; |
| if (brightness > 0) { |
| float ratio = MAX_BRIGHTNESS / brightness; |
| red = ceil(getRed(color) / ratio); |
| green = ceil(getGreen(color) / ratio); |
| blue = ceil(getBlue(color) / ratio); |
| } |
| setRawLightBrightness(rawRgbIds.at(LightColor::RED), red); |
| setRawLightBrightness(rawRgbIds.at(LightColor::GREEN), green); |
| setRawLightBrightness(rawRgbIds.at(LightColor::BLUE), blue); |
| if (rawGlobalId.has_value()) { |
| setRawLightBrightness(rawGlobalId.value(), brightness); |
| } |
| |
| return true; |
| } |
| |
| bool LightInputMapper::MultiColorLight::setLightColor(int32_t color) { |
| std::unordered_map<LightColor, int32_t> intensities; |
| intensities.emplace(LightColor::RED, getRed(color)); |
| intensities.emplace(LightColor::GREEN, getGreen(color)); |
| intensities.emplace(LightColor::BLUE, getBlue(color)); |
| |
| context.setLightIntensities(rawId, intensities); |
| setRawLightBrightness(rawId, getAlpha(color)); |
| return true; |
| } |
| |
| std::optional<int32_t> LightInputMapper::SingleLight::getLightColor() { |
| std::optional<int32_t> brightness = getRawLightBrightness(rawId); |
| if (!brightness.has_value()) { |
| return std::nullopt; |
| } |
| |
| return toArgb(brightness.value(), 0 /* red */, 0 /* green */, 0 /* blue */); |
| } |
| |
| std::optional<int32_t> LightInputMapper::RgbLight::getLightColor() { |
| // If the Alpha component is zero, then return color 0. |
| if (brightness == 0) { |
| return 0; |
| } |
| // Compose color value as per: |
| // https://developer.android.com/reference/android/graphics/Color?hl=en |
| // int color = (A & 0xff) << 24 | (R & 0xff) << 16 | (G & 0xff) << 8 | (B & 0xff); |
| std::optional<int32_t> redOr = getRawLightBrightness(rawRgbIds.at(LightColor::RED)); |
| std::optional<int32_t> greenOr = getRawLightBrightness(rawRgbIds.at(LightColor::GREEN)); |
| std::optional<int32_t> blueOr = getRawLightBrightness(rawRgbIds.at(LightColor::BLUE)); |
| // If we can't get brightness for any of the RGB light |
| if (!redOr.has_value() || !greenOr.has_value() || !blueOr.has_value()) { |
| return std::nullopt; |
| } |
| |
| // Compose the ARGB format color. As the R,G,B color led brightness is scaled by Alpha |
| // value, scale it back to return the nominal color value. |
| float ratio = MAX_BRIGHTNESS / brightness; |
| int32_t red = round(redOr.value() * ratio); |
| int32_t green = round(greenOr.value() * ratio); |
| int32_t blue = round(blueOr.value() * ratio); |
| |
| if (red > MAX_BRIGHTNESS || green > MAX_BRIGHTNESS || blue > MAX_BRIGHTNESS) { |
| // Previously stored brightness isn't valid for current LED values, so just reset to max |
| // brightness since an app couldn't have provided these values in the first place. |
| red = redOr.value(); |
| green = greenOr.value(); |
| blue = blueOr.value(); |
| brightness = MAX_BRIGHTNESS; |
| } |
| |
| return toArgb(brightness, red, green, blue); |
| } |
| |
| std::optional<int32_t> LightInputMapper::MultiColorLight::getLightColor() { |
| auto ret = context.getLightIntensities(rawId); |
| if (!ret.has_value()) { |
| return std::nullopt; |
| } |
| std::unordered_map<LightColor, int32_t> intensities = ret.value(); |
| // Get red, green, blue colors |
| int32_t color = toArgb(0 /* brightness */, intensities.at(LightColor::RED) /* red */, |
| intensities.at(LightColor::GREEN) /* green */, |
| intensities.at(LightColor::BLUE) /* blue */); |
| // Get brightness |
| std::optional<int32_t> brightness = getRawLightBrightness(rawId); |
| if (brightness.has_value()) { |
| return toArgb(brightness.value() /* A */, 0, 0, 0) | color; |
| } |
| return std::nullopt; |
| } |
| |
| bool LightInputMapper::PlayerIdLight::setLightPlayerId(int32_t playerId) { |
| if (rawLightIds.find(playerId) == rawLightIds.end()) { |
| return false; |
| } |
| for (const auto& [id, rawId] : rawLightIds) { |
| if (playerId == id) { |
| setRawLightBrightness(rawId, MAX_BRIGHTNESS); |
| } else { |
| setRawLightBrightness(rawId, 0); |
| } |
| } |
| return true; |
| } |
| |
| std::optional<int32_t> LightInputMapper::PlayerIdLight::getLightPlayerId() { |
| for (const auto& [id, rawId] : rawLightIds) { |
| std::optional<int32_t> brightness = getRawLightBrightness(rawId); |
| if (brightness.has_value() && brightness.value() > 0) { |
| return id; |
| } |
| } |
| return std::nullopt; |
| } |
| |
| void LightInputMapper::SingleLight::dump(std::string& dump) { |
| dump += StringPrintf(INDENT4 "Color: 0x%x\n", getLightColor().value_or(0)); |
| } |
| |
| void LightInputMapper::PlayerIdLight::dump(std::string& dump) { |
| dump += StringPrintf(INDENT4 "PlayerId: %d\n", getLightPlayerId().value_or(-1)); |
| dump += StringPrintf(INDENT4 "Raw Player ID LEDs:"); |
| for (const auto& [id, rawId] : rawLightIds) { |
| dump += StringPrintf("id %d -> %d ", id, rawId); |
| } |
| dump += "\n"; |
| } |
| |
| void LightInputMapper::RgbLight::dump(std::string& dump) { |
| dump += StringPrintf(INDENT4 "Color: 0x%x\n", getLightColor().value_or(0)); |
| dump += StringPrintf(INDENT4 "Raw RGB LEDs: [%d, %d, %d] ", rawRgbIds.at(LightColor::RED), |
| rawRgbIds.at(LightColor::GREEN), rawRgbIds.at(LightColor::BLUE)); |
| if (rawGlobalId.has_value()) { |
| dump += StringPrintf(INDENT4 "Raw Global LED: [%d] ", rawGlobalId.value()); |
| } |
| dump += "\n"; |
| } |
| |
| void LightInputMapper::MultiColorLight::dump(std::string& dump) { |
| dump += StringPrintf(INDENT4 "Color: 0x%x\n", getLightColor().value_or(0)); |
| } |
| |
| uint32_t LightInputMapper::getSources() { |
| return AINPUT_SOURCE_UNKNOWN; |
| } |
| |
| void LightInputMapper::populateDeviceInfo(InputDeviceInfo* info) { |
| InputMapper::populateDeviceInfo(info); |
| |
| for (const auto& [lightId, light] : mLights) { |
| // Input device light doesn't support ordinal, always pass 1. |
| InputDeviceLightInfo lightInfo(light->name, light->id, light->type, 1 /* ordinal */); |
| info->addLightInfo(lightInfo); |
| } |
| } |
| |
| void LightInputMapper::dump(std::string& dump) { |
| dump += INDENT2 "Light Input Mapper:\n"; |
| dump += INDENT3 "Lights:\n"; |
| for (const auto& [lightId, light] : mLights) { |
| dump += StringPrintf(INDENT4 "Id: %d", lightId); |
| dump += StringPrintf(INDENT4 "Name: %s", light->name.c_str()); |
| dump += StringPrintf(INDENT4 "Type: %s", NamedEnum::string(light->type).c_str()); |
| light->dump(dump); |
| } |
| // Dump raw lights |
| dump += INDENT3 "RawLights:\n"; |
| dump += INDENT4 "Id:\t Name:\t Flags:\t Max brightness:\t Brightness\n"; |
| const std::vector<int32_t> rawLightIds = getDeviceContext().getRawLightIds(); |
| // Map from raw light id to raw light info |
| std::unordered_map<int32_t, RawLightInfo> rawInfos; |
| for (const auto& rawId : rawLightIds) { |
| std::optional<RawLightInfo> rawInfo = getDeviceContext().getRawLightInfo(rawId); |
| if (!rawInfo.has_value()) { |
| continue; |
| } |
| dump += StringPrintf(INDENT4 "%d", rawId); |
| dump += StringPrintf(INDENT4 "%s", rawInfo->name.c_str()); |
| dump += StringPrintf(INDENT4 "%s", rawInfo->flags.string().c_str()); |
| dump += StringPrintf(INDENT4 "%d", rawInfo->maxBrightness.value_or(MAX_BRIGHTNESS)); |
| dump += StringPrintf(INDENT4 "%d\n", |
| getDeviceContext().getLightBrightness(rawId).value_or(-1)); |
| } |
| } |
| |
| void LightInputMapper::configure(nsecs_t when, const InputReaderConfiguration* config, |
| uint32_t changes) { |
| InputMapper::configure(when, config, changes); |
| |
| if (!changes) { // first time only |
| bool hasRedLed = false; |
| bool hasGreenLed = false; |
| bool hasBlueLed = false; |
| std::optional<int32_t> rawGlobalId = std::nullopt; |
| // Player ID light common name string |
| std::string playerIdName; |
| // Raw RGB color to raw light ID |
| std::unordered_map<LightColor, int32_t /* rawLightId */> rawRgbIds; |
| // Map from player Id to raw light Id |
| std::unordered_map<int32_t, int32_t> playerIdLightIds; |
| mLights.clear(); |
| |
| // Check raw lights |
| const std::vector<int32_t> rawLightIds = getDeviceContext().getRawLightIds(); |
| // Map from raw light id to raw light info |
| std::unordered_map<int32_t, RawLightInfo> rawInfos; |
| for (const auto& rawId : rawLightIds) { |
| std::optional<RawLightInfo> rawInfo = getDeviceContext().getRawLightInfo(rawId); |
| if (!rawInfo.has_value()) { |
| continue; |
| } |
| rawInfos.insert_or_assign(rawId, rawInfo.value()); |
| // Check if this is a group LEDs for player ID |
| std::regex lightPattern("([a-z]+)([0-9]+)"); |
| std::smatch results; |
| if (std::regex_match(rawInfo->name, results, lightPattern)) { |
| std::string commonName = results[1].str(); |
| int32_t playerId = std::stoi(results[2]); |
| if (playerIdLightIds.empty()) { |
| playerIdName = commonName; |
| playerIdLightIds.insert_or_assign(playerId, rawId); |
| } else { |
| // Make sure the player ID leds have common string name |
| if (playerIdName.compare(commonName) == 0 && |
| playerIdLightIds.find(playerId) == playerIdLightIds.end()) { |
| playerIdLightIds.insert_or_assign(playerId, rawId); |
| } |
| } |
| } |
| // Check if this is an LED of RGB light |
| if (rawInfo->flags.test(InputLightClass::RED)) { |
| hasRedLed = true; |
| rawRgbIds.emplace(LightColor::RED, rawId); |
| } |
| if (rawInfo->flags.test(InputLightClass::GREEN)) { |
| hasGreenLed = true; |
| rawRgbIds.emplace(LightColor::GREEN, rawId); |
| } |
| if (rawInfo->flags.test(InputLightClass::BLUE)) { |
| hasBlueLed = true; |
| rawRgbIds.emplace(LightColor::BLUE, rawId); |
| } |
| if (rawInfo->flags.test(InputLightClass::GLOBAL)) { |
| rawGlobalId = rawId; |
| } |
| if (DEBUG_LIGHT_DETAILS) { |
| ALOGD("Light rawId %d name %s max %d flags %s \n", rawInfo->id, |
| rawInfo->name.c_str(), rawInfo->maxBrightness.value_or(MAX_BRIGHTNESS), |
| rawInfo->flags.string().c_str()); |
| } |
| } |
| |
| // Construct a player ID light |
| if (playerIdLightIds.size() > 1) { |
| std::unique_ptr<Light> light = |
| std::make_unique<PlayerIdLight>(getDeviceContext(), playerIdName, ++mNextId, |
| playerIdLightIds); |
| mLights.insert_or_assign(light->id, std::move(light)); |
| // Remove these raw lights from raw light info as they've been used to compose a |
| // Player ID light, so we do not expose these raw lights as single lights. |
| for (const auto& [playerId, rawId] : playerIdLightIds) { |
| rawInfos.erase(rawId); |
| } |
| } |
| // Construct a RGB light for composed RGB light |
| if (hasRedLed && hasGreenLed && hasBlueLed) { |
| if (DEBUG_LIGHT_DETAILS) { |
| ALOGD("Rgb light ids [%d, %d, %d] \n", rawRgbIds.at(LightColor::RED), |
| rawRgbIds.at(LightColor::GREEN), rawRgbIds.at(LightColor::BLUE)); |
| } |
| std::unique_ptr<Light> light = std::make_unique<RgbLight>(getDeviceContext(), ++mNextId, |
| rawRgbIds, rawGlobalId); |
| mLights.insert_or_assign(light->id, std::move(light)); |
| // Remove from raw light info as they've been composed a RBG light. |
| rawInfos.erase(rawRgbIds.at(LightColor::RED)); |
| rawInfos.erase(rawRgbIds.at(LightColor::GREEN)); |
| rawInfos.erase(rawRgbIds.at(LightColor::BLUE)); |
| if (rawGlobalId.has_value()) { |
| rawInfos.erase(rawGlobalId.value()); |
| } |
| } |
| |
| // Check the rest of raw light infos |
| for (const auto& [rawId, rawInfo] : rawInfos) { |
| // If the node is multi-color led, construct a MULTI_COLOR light |
| if (rawInfo.flags.test(InputLightClass::MULTI_INDEX) && |
| rawInfo.flags.test(InputLightClass::MULTI_INTENSITY)) { |
| if (DEBUG_LIGHT_DETAILS) { |
| ALOGD("Multicolor light Id %d name %s \n", rawInfo.id, rawInfo.name.c_str()); |
| } |
| std::unique_ptr<Light> light = |
| std::make_unique<MultiColorLight>(getDeviceContext(), rawInfo.name, |
| ++mNextId, rawInfo.id); |
| mLights.insert_or_assign(light->id, std::move(light)); |
| continue; |
| } |
| // Construct a single LED light |
| if (DEBUG_LIGHT_DETAILS) { |
| ALOGD("Single light Id %d name %s \n", rawInfo.id, rawInfo.name.c_str()); |
| } |
| std::unique_ptr<Light> light = |
| std::make_unique<SingleLight>(getDeviceContext(), rawInfo.name, ++mNextId, |
| rawInfo.id); |
| |
| mLights.insert_or_assign(light->id, std::move(light)); |
| } |
| } |
| } |
| |
| void LightInputMapper::reset(nsecs_t when) { |
| InputMapper::reset(when); |
| } |
| |
| void LightInputMapper::process(const RawEvent* rawEvent) {} |
| |
| bool LightInputMapper::setLightColor(int32_t lightId, int32_t color) { |
| auto it = mLights.find(lightId); |
| if (it == mLights.end()) { |
| return false; |
| } |
| auto& light = it->second; |
| if (DEBUG_LIGHT_DETAILS) { |
| ALOGD("setLightColor lightId %d type %s color 0x%x", lightId, |
| NamedEnum::string(light->type).c_str(), color); |
| } |
| return light->setLightColor(color); |
| } |
| |
| std::optional<int32_t> LightInputMapper::getLightColor(int32_t lightId) { |
| auto it = mLights.find(lightId); |
| if (it == mLights.end()) { |
| return std::nullopt; |
| } |
| auto& light = it->second; |
| std::optional<int32_t> color = light->getLightColor(); |
| if (DEBUG_LIGHT_DETAILS) { |
| ALOGD("getLightColor lightId %d type %s color 0x%x", lightId, |
| NamedEnum::string(light->type).c_str(), color.value_or(0)); |
| } |
| return color; |
| } |
| |
| bool LightInputMapper::setLightPlayerId(int32_t lightId, int32_t playerId) { |
| auto it = mLights.find(lightId); |
| if (it == mLights.end()) { |
| return false; |
| } |
| auto& light = it->second; |
| return light->setLightPlayerId(playerId); |
| } |
| |
| std::optional<int32_t> LightInputMapper::getLightPlayerId(int32_t lightId) { |
| auto it = mLights.find(lightId); |
| if (it == mLights.end()) { |
| return std::nullopt; |
| } |
| auto& light = it->second; |
| return light->getLightPlayerId(); |
| } |
| |
| } // namespace android |