1 /* 2 * Copyright (C) 2013 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_SERVERS_CAMERA_CAMERA2_ZSLPROCESSOR3_H 18 #define ANDROID_SERVERS_CAMERA_CAMERA2_ZSLPROCESSOR3_H 19 20 #include <utils/Thread.h> 21 #include <utils/String16.h> 22 #include <utils/Vector.h> 23 #include <utils/Mutex.h> 24 #include <utils/Condition.h> 25 #include <gui/BufferItemConsumer.h> 26 #include "Parameters.h" 27 #include "FrameProcessor.h" 28 #include "camera/CameraMetadata.h" 29 #include "Camera2Heap.h" 30 #include "../CameraDeviceBase.h" 31 #include "ZslProcessorInterface.h" 32 #include "../camera3/Camera3ZslStream.h" 33 34 namespace android { 35 36 class Camera2Client; 37 38 namespace camera2 { 39 40 class CaptureSequencer; 41 42 /*** 43 * ZSL queue processing 44 */ 45 class ZslProcessor3 : 46 public ZslProcessorInterface, 47 public camera3::Camera3StreamBufferListener, 48 virtual public Thread, 49 virtual public FrameProcessor::FilteredListener { 50 public: 51 ZslProcessor3(sp<Camera2Client> client, wp<CaptureSequencer> sequencer); 52 ~ZslProcessor3(); 53 54 // From FrameProcessor 55 virtual void onFrameAvailable(int32_t frameId, const CameraMetadata &frame); 56 57 /** 58 **************************************** 59 * ZslProcessorInterface implementation * 60 **************************************** 61 */ 62 63 virtual status_t updateStream(const Parameters ¶ms); 64 virtual status_t deleteStream(); 65 virtual int getStreamId() const; 66 67 virtual status_t pushToReprocess(int32_t requestId); 68 virtual status_t clearZslQueue(); 69 70 void dump(int fd, const Vector<String16>& args) const; 71 72 protected: 73 /** 74 ********************************************** 75 * Camera3StreamBufferListener implementation * 76 ********************************************** 77 */ 78 typedef camera3::Camera3StreamBufferListener::BufferInfo BufferInfo; 79 // Buffer was acquired by the HAL 80 virtual void onBufferAcquired(const BufferInfo& bufferInfo); 81 // Buffer was released by the HAL 82 virtual void onBufferReleased(const BufferInfo& bufferInfo); 83 84 private: 85 static const nsecs_t kWaitDuration = 10000000; // 10 ms 86 87 enum { 88 RUNNING, 89 LOCKED 90 } mState; 91 92 wp<Camera2Client> mClient; 93 wp<CaptureSequencer> mSequencer; 94 95 const int mId; 96 97 mutable Mutex mInputMutex; 98 99 enum { 100 NO_STREAM = -1 101 }; 102 103 int mZslStreamId; 104 sp<camera3::Camera3ZslStream> mZslStream; 105 106 struct ZslPair { 107 BufferItemConsumer::BufferItem buffer; 108 CameraMetadata frame; 109 }; 110 111 static const size_t kZslBufferDepth = 4; 112 static const size_t kFrameListDepth = kZslBufferDepth * 2; 113 Vector<CameraMetadata> mFrameList; 114 size_t mFrameListHead; 115 116 ZslPair mNextPair; 117 118 Vector<ZslPair> mZslQueue; 119 size_t mZslQueueHead; 120 size_t mZslQueueTail; 121 122 CameraMetadata mLatestCapturedRequest; 123 124 virtual bool threadLoop(); 125 126 status_t clearZslQueueLocked(); 127 128 void dumpZslQueue(int id) const; 129 130 nsecs_t getCandidateTimestampLocked(size_t* metadataIdx) const; 131 }; 132 133 134 }; //namespace camera2 135 }; //namespace android 136 137 #endif 138