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112 lines
3.7 KiB
112 lines
3.7 KiB
/*
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* Copyright (C) 2019 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_OUTPUT_INTERFACE_H
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#define ANDROID_SERVERS_CAMERA3_OUTPUT_INTERFACE_H
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#include <memory>
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#include <cutils/native_handle.h>
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#include <utils/Timers.h>
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#include "device3/Camera3StreamInterface.h"
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namespace android {
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namespace camera3 {
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/**
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* Interfaces used by result/notification path shared between Camera3Device and
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* Camera3OfflineSession
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*/
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class SetErrorInterface {
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public:
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// Switch device into error state and send a ERROR_DEVICE notification
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virtual void setErrorState(const char *fmt, ...) = 0;
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// Same as setErrorState except this method assumes callers holds the main object lock
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virtual void setErrorStateLocked(const char *fmt, ...) = 0;
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virtual ~SetErrorInterface() {}
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};
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// Interface used by callback path to update buffer records
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class BufferRecordsInterface {
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public:
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// method to extract buffer's unique ID
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// return pair of (newlySeenBuffer?, bufferId)
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virtual std::pair<bool, uint64_t> getBufferId(const buffer_handle_t& buf, int streamId) = 0;
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// Find a buffer_handle_t based on frame number and stream ID
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virtual status_t popInflightBuffer(int32_t frameNumber, int32_t streamId,
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/*out*/ buffer_handle_t **buffer) = 0;
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// Register a bufId (streamId, buffer_handle_t) to inflight request buffer
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virtual status_t pushInflightRequestBuffer(
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uint64_t bufferId, buffer_handle_t* buf, int32_t streamId) = 0;
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// Find a buffer_handle_t based on bufferId
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virtual status_t popInflightRequestBuffer(uint64_t bufferId,
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/*out*/ buffer_handle_t** buffer,
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/*optional out*/ int32_t* streamId = nullptr) = 0;
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virtual ~BufferRecordsInterface() {}
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};
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class InflightRequestUpdateInterface {
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public:
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// Caller must hold the lock proctecting InflightRequestMap
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// duration: the maxExpectedDuration of the removed entry
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virtual void onInflightEntryRemovedLocked(nsecs_t duration) = 0;
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virtual void checkInflightMapLengthLocked() = 0;
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virtual void onInflightMapFlushedLocked() = 0;
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virtual ~InflightRequestUpdateInterface() {}
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};
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class RequestBufferInterface {
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public:
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// Return if the state machine currently allows for requestBuffers.
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// If this returns true, caller must call endRequestBuffer() later to signal end of a
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// request buffer transaction.
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virtual bool startRequestBuffer() = 0;
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virtual void endRequestBuffer() = 0;
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// Returns how long should implementation wait for a buffer returned
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virtual nsecs_t getWaitDuration() = 0;
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virtual ~RequestBufferInterface() {}
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};
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class FlushBufferInterface {
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public:
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virtual void getInflightBufferKeys(std::vector<std::pair<int32_t, int32_t>>* out) = 0;
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virtual void getInflightRequestBufferKeys(std::vector<uint64_t>* out) = 0;
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virtual std::vector<sp<Camera3StreamInterface>> getAllStreams() = 0;
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virtual ~FlushBufferInterface() {}
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};
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} // namespace camera3
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} // namespace android
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#endif
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