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150 lines
4.6 KiB
150 lines
4.6 KiB
/*
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* Copyright (C) 2014-2018 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_FAKE_STREAM_H
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#define ANDROID_SERVERS_CAMERA3_FAKE_STREAM_H
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#include <utils/RefBase.h>
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#include <gui/Surface.h>
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#include "Camera3Stream.h"
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#include "Camera3IOStreamBase.h"
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#include "Camera3OutputStreamInterface.h"
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namespace android {
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namespace camera3 {
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/**
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* A fake output stream class, to be used as a placeholder when no valid
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* streams are configured by the client.
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* This is necessary because camera HAL v3.2 or older disallow configuring
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* 0 output streams, while the public camera2 API allows for it.
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*/
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class Camera3FakeStream :
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public Camera3IOStreamBase,
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public Camera3OutputStreamInterface {
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public:
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/**
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* Set up a fake stream; doesn't actually connect to anything, and uses
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* a default fake format and size.
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*/
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explicit Camera3FakeStream(int id);
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virtual ~Camera3FakeStream();
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/**
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* Camera3Stream interface
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*/
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virtual void dump(int fd, const Vector<String16> &args) const;
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status_t setTransform(int transform);
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virtual status_t detachBuffer(sp<GraphicBuffer>* buffer, int* fenceFd);
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/**
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* Drop buffers for stream of streamId if dropping is true. If dropping is false, do not
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* drop buffers for stream of streamId.
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*/
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virtual status_t dropBuffers(bool /*dropping*/) override;
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/**
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* Query the physical camera id for the output stream.
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*/
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virtual const String8& getPhysicalCameraId() const override;
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/**
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* Return if this output stream is for video encoding.
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*/
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bool isVideoStream() const;
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/**
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* Return if the consumer configuration of this stream is deferred.
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*/
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virtual bool isConsumerConfigurationDeferred(size_t surface_id) const;
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/**
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* Set the consumer surfaces to the output stream.
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*/
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virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers);
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/**
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* Query the output surface id.
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*/
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virtual ssize_t getSurfaceId(const sp<Surface> &/*surface*/) { return 0; }
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virtual status_t getUniqueSurfaceIds(const std::vector<size_t>&,
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/*out*/std::vector<size_t>*) { return INVALID_OPERATION; };
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/**
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* Update the stream output surfaces.
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*/
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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 status_t setBatchSize(size_t batchSize) override;
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protected:
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/**
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* Note that we release the lock briefly in this function
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*/
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virtual status_t returnBufferCheckedLocked(
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const camera_stream_buffer &buffer,
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nsecs_t timestamp,
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bool output,
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const std::vector<size_t>& surface_ids,
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/*out*/
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sp<Fence> *releaseFenceOut);
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virtual status_t disconnectLocked();
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private:
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// Default fake parameters; 320x240 is a required size for all devices,
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// otherwise act like a SurfaceView would.
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static const int FAKE_WIDTH = 320;
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static const int FAKE_HEIGHT = 240;
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static const int FAKE_FORMAT = HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED;
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static const android_dataspace FAKE_DATASPACE = HAL_DATASPACE_UNKNOWN;
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static const camera_stream_rotation_t FAKE_ROTATION = CAMERA_STREAM_ROTATION_0;
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static const uint64_t FAKE_USAGE = GRALLOC_USAGE_HW_COMPOSER;
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static const String8 FAKE_ID;
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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 = std::vector<size_t>());
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virtual status_t returnBufferLocked(
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const camera_stream_buffer &buffer,
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nsecs_t timestamp, const std::vector<size_t>& surface_ids);
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virtual status_t configureQueueLocked();
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virtual status_t getEndpointUsage(uint64_t *usage) const;
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}; // class Camera3FakeStream
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} // namespace camera3
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} // namespace android
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#endif
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