1 /* 2 * Copyright (C) 2013-2018 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_INPUT_STREAM_H 18 #define ANDROID_SERVERS_CAMERA3_INPUT_STREAM_H 19 20 #include <utils/RefBase.h> 21 #include <gui/Flags.h> 22 #include <gui/Surface.h> 23 #include <gui/BufferItemConsumer.h> 24 25 #include "Camera3IOStreamBase.h" 26 27 namespace android { 28 29 namespace camera3 { 30 31 /** 32 * A class for managing a single stream of input data to the camera device. 33 * 34 * This class serves as a consumer adapter for the HAL, and will consume the 35 * buffers by feeding them into the HAL, as well as releasing the buffers back 36 * the buffers once the HAL is done with them. 37 */ 38 class Camera3InputStream : public Camera3IOStreamBase, 39 public BufferItemConsumer::BufferFreedListener { 40 public: 41 /** 42 * Set up a stream for formats that have fixed size, such as RAW and YUV. 43 */ 44 Camera3InputStream(int id, uint32_t width, uint32_t height, int format); 45 ~Camera3InputStream(); 46 47 virtual void dump(int fd, const Vector<String16> &args); 48 49 // TODO: expose an interface to get the IGraphicBufferProducer 50 51 private: 52 53 sp<BufferItemConsumer> mConsumer; 54 #if WB_CAMERA3_AND_PROCESSORS_WITH_DEPENDENCIES 55 sp<Surface> mSurface; 56 #else 57 sp<IGraphicBufferProducer> mProducer; 58 #endif 59 Vector<BufferItem> mBuffersInFlight; 60 61 static const std::string FAKE_ID; 62 63 /** 64 * Camera3IOStreamBase 65 */ 66 virtual status_t returnBufferCheckedLocked( 67 const camera_stream_buffer &buffer, 68 nsecs_t timestamp, 69 nsecs_t readoutTimestamp, 70 bool output, 71 int32_t transform, 72 const std::vector<size_t>& surface_ids, 73 /*out*/ 74 sp<Fence> *releaseFenceOut); 75 76 /** 77 * Camera3Stream interface 78 */ 79 80 virtual status_t getInputBufferLocked(camera_stream_buffer *buffer, Size *size); 81 virtual status_t returnInputBufferLocked( 82 const camera_stream_buffer &buffer); 83 #if WB_CAMERA3_AND_PROCESSORS_WITH_DEPENDENCIES 84 virtual status_t getInputSurfaceLocked(sp<Surface> *surface); 85 #else 86 virtual status_t getInputBufferProducerLocked( 87 sp<IGraphicBufferProducer> *producer); 88 #endif 89 virtual status_t disconnectLocked(); 90 91 virtual status_t configureQueueLocked(); 92 93 virtual status_t getEndpointUsage(uint64_t *usage); 94 95 /** 96 * BufferItemConsumer::BufferFreedListener interface 97 */ 98 virtual void onBufferFreed(const wp<GraphicBuffer>&) override; 99 100 }; // class Camera3InputStream 101 102 }; // namespace camera3 103 104 }; // namespace android 105 106 #endif 107