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_CAMERA3_INPUT_STREAM_H 18 #define ANDROID_SERVERS_CAMERA3_INPUT_STREAM_H 19 20 #include <utils/RefBase.h> 21 #include <gui/Surface.h> 22 #include <gui/BufferItemConsumer.h> 23 24 #include "Camera3IOStreamBase.h" 25 26 namespace android { 27 28 namespace camera3 { 29 30 /** 31 * A class for managing a single stream of input data to the camera device. 32 * 33 * This class serves as a consumer adapter for the HAL, and will consume the 34 * buffers by feeding them into the HAL, as well as releasing the buffers back 35 * the buffers once the HAL is done with them. 36 */ 37 class Camera3InputStream : public Camera3IOStreamBase { 38 public: 39 /** 40 * Set up a stream for formats that have fixed size, such as RAW and YUV. 41 */ 42 Camera3InputStream(int id, uint32_t width, uint32_t height, int format); 43 ~Camera3InputStream(); 44 45 virtual void dump(int fd, const Vector<String16> &args) const; 46 47 // TODO: expose an interface to get the IGraphicBufferProducer 48 49 private: 50 51 typedef BufferItemConsumer::BufferItem BufferItem; 52 53 sp<BufferItemConsumer> mConsumer; 54 Vector<BufferItem> mBuffersInFlight; 55 56 /** 57 * Camera3IOStreamBase 58 */ 59 virtual status_t returnBufferCheckedLocked( 60 const camera3_stream_buffer &buffer, 61 nsecs_t timestamp, 62 bool output, 63 /*out*/ 64 sp<Fence> *releaseFenceOut); 65 66 /** 67 * Camera3Stream interface 68 */ 69 70 virtual status_t getInputBufferLocked(camera3_stream_buffer *buffer); 71 virtual status_t returnInputBufferLocked( 72 const camera3_stream_buffer &buffer); 73 virtual status_t disconnectLocked(); 74 75 virtual status_t configureQueueLocked(); 76 77 virtual status_t getEndpointUsage(uint32_t *usage); 78 79 }; // class Camera3InputStream 80 81 }; // namespace camera3 82 83 }; // namespace android 84 85 #endif 86
