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140 lines
4.8 KiB
140 lines
4.8 KiB
/*
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* Copyright (C) 2016-2018 The Android Open Source 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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#ifndef ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H
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#define ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H
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#include <array>
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#include "Camera3StreamSplitter.h"
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#include "Camera3OutputStream.h"
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namespace android {
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namespace camera3 {
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class Camera3SharedOutputStream :
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public Camera3OutputStream {
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public:
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/**
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* Set up a stream for formats that have 2 dimensions, with multiple
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* surfaces. A valid stream set id needs to be set to support buffer
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* sharing between multiple streams.
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*/
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Camera3SharedOutputStream(int id, const std::vector<sp<Surface>>& surfaces,
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uint32_t width, uint32_t height, int format,
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uint64_t consumerUsage, android_dataspace dataSpace,
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camera_stream_rotation_t rotation, nsecs_t timestampOffset,
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const String8& physicalCameraId,
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const std::unordered_set<int32_t> &sensorPixelModesUsed,
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int setId = CAMERA3_STREAM_SET_ID_INVALID,
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bool useHalBufManager = false);
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virtual ~Camera3SharedOutputStream();
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virtual status_t notifyBufferReleased(ANativeWindowBuffer *buffer);
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virtual bool isConsumerConfigurationDeferred(size_t surface_id) const;
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virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers);
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virtual ssize_t getSurfaceId(const sp<Surface> &surface);
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/**
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* Query the unique surface IDs of current surfaceIds.
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* When passing unique surface IDs in returnBuffer(), if the
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* surfaceId has been removed from the stream, the output corresponding to
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* the unique surface ID will be ignored and not delivered to client.
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*/
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virtual status_t getUniqueSurfaceIds(const std::vector<size_t>& surfaceIds,
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/*out*/std::vector<size_t>* outUniqueIds) override;
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virtual status_t updateStream(const std::vector<sp<Surface>> &outputSurfaces,
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const std::vector<OutputStreamInfo> &outputInfo,
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const std::vector<size_t> &removedSurfaceIds,
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KeyedVector<sp<Surface>, size_t> *outputMap/*out*/);
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virtual bool getOfflineProcessingSupport() const {
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// As per Camera spec. shared streams currently do not support
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// offline mode.
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return false;
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}
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private:
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static const size_t kMaxOutputs = 4;
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// Whether HAL is in control for buffer management. Surface sharing behavior
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// depends on this flag.
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const bool mUseHalBufManager;
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// Pair of an output Surface and its unique ID
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typedef std::pair<sp<Surface>, size_t> SurfaceUniqueId;
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// Map surfaceId -> (output surface, unique surface ID)
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std::array<SurfaceUniqueId, kMaxOutputs> mSurfaceUniqueIds;
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size_t mNextUniqueSurfaceId = 0;
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ssize_t getNextSurfaceIdLocked();
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status_t revertPartialUpdateLocked(const KeyedVector<sp<Surface>, size_t> &removedSurfaces,
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const KeyedVector<sp<Surface>, size_t> &attachedSurfaces);
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/**
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* The Camera3StreamSplitter object this stream uses for stream
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* sharing.
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*/
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sp<Camera3StreamSplitter> mStreamSplitter;
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/**
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* Initialize stream splitter.
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*/
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status_t connectStreamSplitterLocked();
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/**
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* Attach the output buffer to stream splitter.
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* When camera service is doing buffer management, this method will be called
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* before the buffer is handed out to HAL in request thread.
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* When HAL is doing buffer management, this method will be called when
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* the buffer is returned from HAL in hwbinder callback thread.
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*/
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status_t attachBufferToSplitterLocked(ANativeWindowBuffer* anb,
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const std::vector<size_t>& surface_ids);
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/**
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* Internal Camera3Stream interface
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*/
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virtual status_t getBufferLocked(camera_stream_buffer *buffer,
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const std::vector<size_t>& surface_ids);
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virtual status_t queueBufferToConsumer(sp<ANativeWindow>& consumer,
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ANativeWindowBuffer* buffer, int anwReleaseFence,
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const std::vector<size_t>& uniqueSurfaceIds);
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virtual status_t configureQueueLocked();
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virtual status_t disconnectLocked();
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virtual status_t getEndpointUsage(uint64_t *usage) const;
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}; // class Camera3SharedOutputStream
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} // namespace camera3
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} // namespace android
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#endif // ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H
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