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/*
* Copyright (C) 2016-2018 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 ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H
#define ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H
#include <array>
#include "Camera3StreamSplitter.h"
#include "Camera3OutputStream.h"
namespace android {
namespace camera3 {
class Camera3SharedOutputStream :
public Camera3OutputStream {
public:
/**
* Set up a stream for formats that have 2 dimensions, with multiple
* surfaces. A valid stream set id needs to be set to support buffer
* sharing between multiple streams.
*/
Camera3SharedOutputStream(int id, const std::vector<sp<Surface>>& surfaces,
uint32_t width, uint32_t height, int format,
uint64_t consumerUsage, android_dataspace dataSpace,
camera_stream_rotation_t rotation, nsecs_t timestampOffset,
const String8& physicalCameraId,
const std::unordered_set<int32_t> &sensorPixelModesUsed, IPCTransport transport,
int setId = CAMERA3_STREAM_SET_ID_INVALID,
bool useHalBufManager = false,
int64_t dynamicProfile = ANDROID_REQUEST_AVAILABLE_DYNAMIC_RANGE_PROFILES_MAP_STANDARD,
int64_t streamUseCase = ANDROID_SCALER_AVAILABLE_STREAM_USE_CASES_DEFAULT,
bool deviceTimeBaseIsRealtime = false,
int timestampBase = OutputConfiguration::TIMESTAMP_BASE_DEFAULT,
int mirrorMode = OutputConfiguration::MIRROR_MODE_AUTO);
virtual ~Camera3SharedOutputStream();
virtual status_t notifyBufferReleased(ANativeWindowBuffer *buffer);
virtual bool isConsumerConfigurationDeferred(size_t surface_id) const;
virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers);
virtual ssize_t getSurfaceId(const sp<Surface> &surface);
/**
* Query the unique surface IDs of current surfaceIds.
* When passing unique surface IDs in returnBuffer(), if the
* surfaceId has been removed from the stream, the output corresponding to
* the unique surface ID will be ignored and not delivered to client.
*/
virtual status_t getUniqueSurfaceIds(const std::vector<size_t>& surfaceIds,
/*out*/std::vector<size_t>* outUniqueIds) override;
virtual status_t updateStream(const std::vector<sp<Surface>> &outputSurfaces,
const std::vector<OutputStreamInfo> &outputInfo,
const std::vector<size_t> &removedSurfaceIds,
KeyedVector<sp<Surface>, size_t> *outputMap/*out*/);
virtual bool getOfflineProcessingSupport() const {
// As per Camera spec. shared streams currently do not support
// offline mode.
return false;
}
private:
static const size_t kMaxOutputs = 4;
// Whether HAL is in control for buffer management. Surface sharing behavior
// depends on this flag.
const bool mUseHalBufManager;
// Pair of an output Surface and its unique ID
typedef std::pair<sp<Surface>, size_t> SurfaceUniqueId;
// Map surfaceId -> (output surface, unique surface ID)
std::array<SurfaceUniqueId, kMaxOutputs> mSurfaceUniqueIds;
size_t mNextUniqueSurfaceId = 0;
ssize_t getNextSurfaceIdLocked();
status_t revertPartialUpdateLocked(const KeyedVector<sp<Surface>, size_t> &removedSurfaces,
const KeyedVector<sp<Surface>, size_t> &attachedSurfaces);
/**
* The Camera3StreamSplitter object this stream uses for stream
* sharing.
*/
sp<Camera3StreamSplitter> mStreamSplitter;
/**
* Initialize stream splitter.
*/
status_t connectStreamSplitterLocked();
/**
* Attach the output buffer to stream splitter.
* When camera service is doing buffer management, this method will be called
* before the buffer is handed out to HAL in request thread.
* When HAL is doing buffer management, this method will be called when
* the buffer is returned from HAL in hwbinder callback thread.
*/
status_t attachBufferToSplitterLocked(ANativeWindowBuffer* anb,
const std::vector<size_t>& surface_ids);
/**
* Internal Camera3Stream interface
*/
virtual status_t getBufferLocked(camera_stream_buffer *buffer,
const std::vector<size_t>& surface_ids);
virtual status_t queueBufferToConsumer(sp<ANativeWindow>& consumer,
ANativeWindowBuffer* buffer, int anwReleaseFence,
const std::vector<size_t>& uniqueSurfaceIds);
virtual status_t configureQueueLocked();
virtual status_t disconnectLocked();
virtual status_t getEndpointUsage(uint64_t *usage) const;
}; // class Camera3SharedOutputStream
} // namespace camera3
} // namespace android
#endif // ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H