1 /* 2 * Copyright (C) 2016-2018 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_CAMERA3_SHARED_OUTPUT_STREAM_H 18 #define ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H 19 20 #include <array> 21 #include "Camera3StreamSplitter.h" 22 #include "Camera3OutputStream.h" 23 24 namespace android { 25 26 namespace camera3 { 27 28 class Camera3SharedOutputStream : 29 public Camera3OutputStream { 30 public: 31 /** 32 * Set up a stream for formats that have 2 dimensions, with multiple 33 * surfaces. A valid stream set id needs to be set to support buffer 34 * sharing between multiple streams. 35 */ 36 Camera3SharedOutputStream(int id, const std::vector<sp<Surface>>& surfaces, 37 uint32_t width, uint32_t height, int format, 38 uint64_t consumerUsage, android_dataspace dataSpace, 39 camera3_stream_rotation_t rotation, nsecs_t timestampOffset, 40 const String8& physicalCameraId, 41 int setId = CAMERA3_STREAM_SET_ID_INVALID, 42 bool useHalBufManager = false); 43 44 virtual ~Camera3SharedOutputStream(); 45 46 virtual status_t notifyBufferReleased(ANativeWindowBuffer *buffer); 47 48 virtual bool isConsumerConfigurationDeferred(size_t surface_id) const; 49 50 virtual status_t setConsumers(const std::vector<sp<Surface>>& consumers); 51 52 virtual ssize_t getSurfaceId(const sp<Surface> &surface); 53 54 /** 55 * Query the unique surface IDs of current surfaceIds. 56 * When passing unique surface IDs in returnBuffer(), if the 57 * surfaceId has been removed from the stream, the output corresponding to 58 * the unique surface ID will be ignored and not delivered to client. 59 */ 60 virtual status_t getUniqueSurfaceIds(const std::vector<size_t>& surfaceIds, 61 /*out*/std::vector<size_t>* outUniqueIds) override; 62 63 virtual status_t updateStream(const std::vector<sp<Surface>> &outputSurfaces, 64 const std::vector<OutputStreamInfo> &outputInfo, 65 const std::vector<size_t> &removedSurfaceIds, 66 KeyedVector<sp<Surface>, size_t> *outputMap/*out*/); 67 68 private: 69 70 static const size_t kMaxOutputs = 4; 71 72 // Whether HAL is in control for buffer management. Surface sharing behavior 73 // depends on this flag. 74 const bool mUseHalBufManager; 75 76 // Pair of an output Surface and its unique ID 77 typedef std::pair<sp<Surface>, size_t> SurfaceUniqueId; 78 79 // Map surfaceId -> (output surface, unique surface ID) 80 std::array<SurfaceUniqueId, kMaxOutputs> mSurfaceUniqueIds; 81 82 size_t mNextUniqueSurfaceId = 0; 83 84 ssize_t getNextSurfaceIdLocked(); 85 86 status_t revertPartialUpdateLocked(const KeyedVector<sp<Surface>, size_t> &removedSurfaces, 87 const KeyedVector<sp<Surface>, size_t> &attachedSurfaces); 88 89 /** 90 * The Camera3StreamSplitter object this stream uses for stream 91 * sharing. 92 */ 93 sp<Camera3StreamSplitter> mStreamSplitter; 94 95 /** 96 * Initialize stream splitter. 97 */ 98 status_t connectStreamSplitterLocked(); 99 100 /** 101 * Attach the output buffer to stream splitter. 102 * When camera service is doing buffer management, this method will be called 103 * before the buffer is handed out to HAL in request thread. 104 * When HAL is doing buffer management, this method will be called when 105 * the buffer is returned from HAL in hwbinder callback thread. 106 */ 107 status_t attachBufferToSplitterLocked(ANativeWindowBuffer* anb, 108 const std::vector<size_t>& surface_ids); 109 110 /** 111 * Internal Camera3Stream interface 112 */ 113 virtual status_t getBufferLocked(camera3_stream_buffer *buffer, 114 const std::vector<size_t>& surface_ids); 115 116 virtual status_t queueBufferToConsumer(sp<ANativeWindow>& consumer, 117 ANativeWindowBuffer* buffer, int anwReleaseFence, 118 const std::vector<size_t>& uniqueSurfaceIds); 119 120 virtual status_t configureQueueLocked(); 121 122 virtual status_t disconnectLocked(); 123 124 virtual status_t getEndpointUsage(uint64_t *usage) const; 125 126 }; // class Camera3SharedOutputStream 127 128 } // namespace camera3 129 130 } // namespace android 131 132 #endif // ANDROID_SERVERS_CAMERA3_SHARED_OUTPUT_STREAM_H 133