| /* |
| * Copyright (C) 2015 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. |
| */ |
| |
| #pragma once |
| |
| #include "IVolumeCurvesCollection.h" |
| #include <utils/KeyedVector.h> |
| #include <utils/StrongPointer.h> |
| #include <utils/SortedVector.h> |
| #include <system/audio.h> |
| |
| namespace android { |
| |
| // stream descriptor used for volume control |
| class StreamDescriptor |
| { |
| public: |
| StreamDescriptor(); |
| |
| int getVolumeIndex(audio_devices_t device) const; |
| bool canBeMuted() const { return mCanBeMuted; } |
| void clearCurrentVolumeIndex(); |
| void addCurrentVolumeIndex(audio_devices_t device, int index); |
| int getVolumeIndexMin() const { return mIndexMin; } |
| int getVolumeIndexMax() const { return mIndexMax; } |
| void setVolumeIndexMin(int volIndexMin); |
| void setVolumeIndexMax(int volIndexMax); |
| bool hasVolumeIndexForDevice(audio_devices_t device) const |
| { |
| device = Volume::getDeviceForVolume(device); |
| return mIndexCur.indexOfKey(device) >= 0; |
| } |
| |
| void dump(int fd) const; |
| |
| void setVolumeCurvePoint(device_category deviceCategory, const VolumeCurvePoint *point); |
| const VolumeCurvePoint *getVolumeCurvePoint(device_category deviceCategory) const |
| { |
| return mVolumeCurve[deviceCategory]; |
| } |
| |
| private: |
| const VolumeCurvePoint *mVolumeCurve[DEVICE_CATEGORY_CNT]; |
| KeyedVector<audio_devices_t, int> mIndexCur; /**< current volume index per device. */ |
| int mIndexMin; /**< min volume index. */ |
| int mIndexMax; /**< max volume index. */ |
| bool mCanBeMuted; /**< true is the stream can be muted. */ |
| }; |
| |
| /** |
| * stream descriptors collection for volume control |
| */ |
| class StreamDescriptorCollection : public DefaultKeyedVector<audio_stream_type_t, StreamDescriptor>, |
| public IVolumeCurvesCollection |
| { |
| public: |
| StreamDescriptorCollection(); |
| |
| virtual void clearCurrentVolumeIndex(audio_stream_type_t stream); |
| virtual void addCurrentVolumeIndex(audio_stream_type_t stream, audio_devices_t device, |
| int index); |
| virtual bool canBeMuted(audio_stream_type_t stream); |
| virtual int getVolumeIndexMin(audio_stream_type_t stream) const |
| { |
| return valueFor(stream).getVolumeIndexMin(); |
| } |
| virtual int getVolumeIndex(audio_stream_type_t stream, audio_devices_t device) |
| { |
| return valueFor(stream).getVolumeIndex(device); |
| } |
| virtual int getVolumeIndexMax(audio_stream_type_t stream) const |
| { |
| return valueFor(stream).getVolumeIndexMax(); |
| } |
| virtual float volIndexToDb(audio_stream_type_t stream, device_category device, |
| int indexInUi) const; |
| virtual status_t initStreamVolume(audio_stream_type_t stream, int indexMin, int indexMax); |
| virtual void initializeVolumeCurves(bool isSpeakerDrcEnabled); |
| virtual void switchVolumeCurve(audio_stream_type_t streamSrc, audio_stream_type_t streamDst); |
| virtual bool hasVolumeIndexForDevice(audio_stream_type_t stream, |
| audio_devices_t device) const |
| { |
| return valueFor(stream).hasVolumeIndexForDevice(device); |
| } |
| |
| virtual status_t dump(int fd) const; |
| |
| private: |
| void setVolumeCurvePoint(audio_stream_type_t stream, device_category deviceCategory, |
| const VolumeCurvePoint *point); |
| const VolumeCurvePoint *getVolumeCurvePoint(audio_stream_type_t stream, |
| device_category deviceCategory) const; |
| void setVolumeIndexMin(audio_stream_type_t stream,int volIndexMin); |
| void setVolumeIndexMax(audio_stream_type_t stream,int volIndexMax); |
| }; |
| |
| }; // namespace android |