1/* 2 * Copyright (C) 2012 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_ZSLPROCESSOR_H 18#define ANDROID_SERVERS_CAMERA_CAMERA2_ZSLPROCESSOR_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 "CameraMetadata.h" 29#include "Camera2Heap.h" 30#include "../Camera2Device.h" 31 32namespace android { 33 34class Camera2Client; 35 36namespace camera2 { 37 38class CaptureSequencer; 39 40/*** 41 * ZSL queue processing 42 */ 43class ZslProcessor: 44 virtual public Thread, 45 virtual public BufferItemConsumer::FrameAvailableListener, 46 virtual public FrameProcessor::FilteredListener, 47 virtual public Camera2Device::BufferReleasedListener { 48 public: 49 ZslProcessor(wp<Camera2Client> client, wp<CaptureSequencer> sequencer); 50 ~ZslProcessor(); 51 52 // From mZslConsumer 53 virtual void onFrameAvailable(); 54 // From FrameProcessor 55 virtual void onFrameAvailable(int32_t frameId, const CameraMetadata &frame); 56 57 virtual void onBufferReleased(buffer_handle_t *handle); 58 59 status_t updateStream(const Parameters ¶ms); 60 status_t deleteStream(); 61 int getStreamId() const; 62 int getReprocessStreamId() const; 63 64 status_t pushToReprocess(int32_t requestId); 65 status_t clearZslQueue(); 66 67 void dump(int fd, const Vector<String16>& args) const; 68 private: 69 static const nsecs_t kWaitDuration = 10000000; // 10 ms 70 71 enum { 72 RUNNING, 73 LOCKED 74 } mState; 75 76 wp<Camera2Client> mClient; 77 wp<CaptureSequencer> mSequencer; 78 79 mutable Mutex mInputMutex; 80 bool mZslBufferAvailable; 81 Condition mZslBufferAvailableSignal; 82 83 enum { 84 NO_STREAM = -1 85 }; 86 87 int mZslStreamId; 88 int mZslReprocessStreamId; 89 sp<BufferItemConsumer> mZslConsumer; 90 sp<ANativeWindow> mZslWindow; 91 92 struct ZslPair { 93 BufferItemConsumer::BufferItem buffer; 94 CameraMetadata frame; 95 }; 96 97 static const size_t kZslBufferDepth = 4; 98 static const size_t kFrameListDepth = kZslBufferDepth * 2; 99 Vector<CameraMetadata> mFrameList; 100 size_t mFrameListHead; 101 102 ZslPair mNextPair; 103 104 Vector<ZslPair> mZslQueue; 105 size_t mZslQueueHead; 106 size_t mZslQueueTail; 107 108 CameraMetadata mLatestCapturedRequest; 109 110 virtual bool threadLoop(); 111 112 status_t processNewZslBuffer(sp<Camera2Client> &client); 113 114 // Match up entries from frame list to buffers in ZSL queue 115 void findMatchesLocked(); 116 117 status_t clearZslQueueLocked(); 118 119 void dumpZslQueue(int id) const; 120}; 121 122 123}; //namespace camera2 124}; //namespace android 125 126#endif 127