Support Inputdevice LightsManager feature in frameworks.
Add lights manager support to input frameworks.
Bug: 161633625
Test: atest LightsManagerTest, atest InputDeviceLightsManagerTest
Change-Id: Ie00357bce0f6c98e9eada5e0a79f93f48e7a4d1b
diff --git a/services/inputflinger/reader/mapper/LightInputMapper.h b/services/inputflinger/reader/mapper/LightInputMapper.h
new file mode 100644
index 0000000..9254720
--- /dev/null
+++ b/services/inputflinger/reader/mapper/LightInputMapper.h
@@ -0,0 +1,135 @@
+/*
+ * 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.
+ */
+
+#ifndef _UI_INPUTREADER_LIGHT_INPUT_MAPPER_H
+#define _UI_INPUTREADER_LIGHT_INPUT_MAPPER_H
+
+#include "InputMapper.h"
+
+namespace android {
+
+class LightInputMapper : public InputMapper {
+ // Refer to https://developer.android.com/reference/kotlin/android/graphics/Color
+ /* Number of colors : {red, green, blue} */
+ static constexpr size_t COLOR_NUM = 3;
+ static constexpr int32_t MAX_BRIGHTNESS = 0xff;
+
+public:
+ explicit LightInputMapper(InputDeviceContext& deviceContext);
+ ~LightInputMapper() override;
+
+ uint32_t getSources() override;
+ void populateDeviceInfo(InputDeviceInfo* deviceInfo) override;
+ void dump(std::string& dump) override;
+ void configure(nsecs_t when, const InputReaderConfiguration* config, uint32_t changes) override;
+ void reset(nsecs_t when) override;
+ void process(const RawEvent* rawEvent) override;
+ bool setLightColor(int32_t lightId, int32_t color) override;
+ bool setLightPlayerId(int32_t lightId, int32_t playerId) override;
+ std::optional<int32_t> getLightColor(int32_t lightId) override;
+ std::optional<int32_t> getLightPlayerId(int32_t lightId) override;
+
+private:
+ struct Light {
+ explicit Light(InputDeviceContext& context, std::string name, int32_t id,
+ InputDeviceLightType type)
+ : context(context), name(name), id(id), type(type) {}
+ virtual ~Light() {}
+ InputDeviceContext& context;
+ std::string name;
+ int32_t id;
+ InputDeviceLightType type;
+
+ virtual bool setLightColor(int32_t color) { return false; }
+ virtual std::optional<int32_t> getLightColor() { return std::nullopt; }
+ virtual bool setLightPlayerId(int32_t playerId) { return false; }
+ virtual std::optional<int32_t> getLightPlayerId() { return std::nullopt; }
+
+ virtual void dump(std::string& dump) {}
+
+ std::optional<std::int32_t> getRawLightBrightness(int32_t rawLightId);
+ void setRawLightBrightness(int32_t rawLightId, int32_t brightness);
+ };
+
+ struct SingleLight : public Light {
+ explicit SingleLight(InputDeviceContext& context, std::string name, int32_t id,
+ int32_t rawId)
+ : Light(context, name, id, InputDeviceLightType::SINGLE), rawId(rawId) {}
+ int32_t rawId;
+
+ bool setLightColor(int32_t color) override;
+ std::optional<int32_t> getLightColor() override;
+ void dump(std::string& dump) override;
+ };
+
+ struct RgbLight : public Light {
+ explicit RgbLight(InputDeviceContext& context, int32_t id,
+ std::unordered_map<LightColor, int32_t> rawRgbIds,
+ std::optional<int32_t> rawGlobalId)
+ : Light(context, "RGB", id, InputDeviceLightType::RGB),
+ rawRgbIds(rawRgbIds),
+ rawGlobalId(rawGlobalId) {
+ brightness = rawGlobalId.has_value()
+ ? getRawLightBrightness(rawGlobalId.value()).value_or(MAX_BRIGHTNESS)
+ : MAX_BRIGHTNESS;
+ }
+ // Map from color to raw light id.
+ std::unordered_map<LightColor, int32_t /* rawLightId */> rawRgbIds;
+ // Optional global control raw light id.
+ std::optional<int32_t> rawGlobalId;
+ int32_t brightness;
+
+ bool setLightColor(int32_t color) override;
+ std::optional<int32_t> getLightColor() override;
+ void dump(std::string& dump) override;
+ };
+
+ struct MultiColorLight : public Light {
+ explicit MultiColorLight(InputDeviceContext& context, std::string name, int32_t id,
+ int32_t rawId)
+ : Light(context, name, id, InputDeviceLightType::MULTI_COLOR), rawId(rawId) {}
+ int32_t rawId;
+
+ bool setLightColor(int32_t color) override;
+ std::optional<int32_t> getLightColor() override;
+ void dump(std::string& dump) override;
+ };
+
+ struct PlayerIdLight : public Light {
+ explicit PlayerIdLight(InputDeviceContext& context, std::string name, int32_t id,
+ std::unordered_map<int32_t, int32_t> rawLightIds)
+ : Light(context, name, id, InputDeviceLightType::PLAYER_ID),
+ rawLightIds(rawLightIds) {}
+ // Map from player Id to raw light Id
+ std::unordered_map<int32_t, int32_t> rawLightIds;
+
+ bool setLightPlayerId(int32_t palyerId) override;
+ std::optional<int32_t> getLightPlayerId() override;
+ void dump(std::string& dump) override;
+ };
+
+ int32_t mNextId = 0;
+
+ // Light color map from light color to the color index.
+ static const std::unordered_map<std::string, size_t> LIGHT_COLORS;
+
+ // Light map from light ID to Light
+ std::unordered_map<int32_t, std::unique_ptr<Light>> mLights;
+};
+
+} // namespace android
+
+#endif // _UI_INPUTREADER_LIGHT_INPUT_MAPPER_H
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