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Diffstat (limited to 'services/camera/libcameraservice/device2/Camera2Device.h')
| -rw-r--r-- | services/camera/libcameraservice/device2/Camera2Device.h | 354 |
1 files changed, 354 insertions, 0 deletions
diff --git a/services/camera/libcameraservice/device2/Camera2Device.h b/services/camera/libcameraservice/device2/Camera2Device.h new file mode 100644 index 0000000..1f53c56 --- /dev/null +++ b/services/camera/libcameraservice/device2/Camera2Device.h @@ -0,0 +1,354 @@ +/* + * Copyright (C) 2012 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef ANDROID_SERVERS_CAMERA_CAMERA2DEVICE_H +#define ANDROID_SERVERS_CAMERA_CAMERA2DEVICE_H + +#include <utils/Condition.h> +#include <utils/Errors.h> +#include <utils/List.h> +#include <utils/Mutex.h> + +#include "common/CameraDeviceBase.h" + +namespace android { + +/** + * CameraDevice for HAL devices with version CAMERA_DEVICE_API_VERSION_2_0 + * + * TODO for camera2 API implementation: + * Does not produce notifyShutter / notifyIdle callbacks to NotificationListener + * Use waitUntilDrained for idle. + */ +class Camera2Device: public CameraDeviceBase { + public: + Camera2Device(int id); + + virtual ~Camera2Device(); + + /** + * CameraDevice interface + */ + virtual int getId() const; + virtual status_t initialize(camera_module_t *module); + virtual status_t disconnect(); + virtual status_t dump(int fd, const Vector<String16>& args); + virtual const CameraMetadata& info() const; + virtual status_t capture(CameraMetadata &request); + virtual status_t setStreamingRequest(const CameraMetadata &request); + virtual status_t clearStreamingRequest(); + virtual status_t waitUntilRequestReceived(int32_t requestId, nsecs_t timeout); + virtual status_t createStream(sp<ANativeWindow> consumer, + uint32_t width, uint32_t height, int format, size_t size, + int *id); + virtual status_t createReprocessStreamFromStream(int outputId, int *id); + virtual status_t getStreamInfo(int id, + uint32_t *width, uint32_t *height, uint32_t *format); + virtual status_t setStreamTransform(int id, int transform); + virtual status_t deleteStream(int id); + virtual status_t deleteReprocessStream(int id); + virtual status_t createDefaultRequest(int templateId, CameraMetadata *request); + virtual status_t waitUntilDrained(); + virtual status_t setNotifyCallback(NotificationListener *listener); + virtual bool willNotify3A(); + virtual status_t waitForNextFrame(nsecs_t timeout); + virtual status_t getNextFrame(CameraMetadata *frame); + virtual status_t triggerAutofocus(uint32_t id); + virtual status_t triggerCancelAutofocus(uint32_t id); + virtual status_t triggerPrecaptureMetering(uint32_t id); + virtual status_t pushReprocessBuffer(int reprocessStreamId, + buffer_handle_t *buffer, wp<BufferReleasedListener> listener); + // Flush implemented as just a wait + virtual status_t flush(); + private: + const int mId; + camera2_device_t *mHal2Device; + + CameraMetadata mDeviceInfo; + vendor_tag_query_ops_t *mVendorTagOps; + + /** + * Queue class for both sending requests to a camera2 device, and for + * receiving frames from a camera2 device. + */ + class MetadataQueue: public camera2_request_queue_src_ops_t, + public camera2_frame_queue_dst_ops_t { + public: + MetadataQueue(); + ~MetadataQueue(); + + // Interface to camera2 HAL device, either for requests (device is + // consumer) or for frames (device is producer) + const camera2_request_queue_src_ops_t* getToConsumerInterface(); + void setFromConsumerInterface(camera2_device_t *d); + + // Connect queue consumer endpoint to a camera2 device + status_t setConsumerDevice(camera2_device_t *d); + // Connect queue producer endpoint to a camera2 device + status_t setProducerDevice(camera2_device_t *d); + + const camera2_frame_queue_dst_ops_t* getToProducerInterface(); + + // Real interfaces. On enqueue, queue takes ownership of buffer pointer + // On dequeue, user takes ownership of buffer pointer. + status_t enqueue(camera_metadata_t *buf); + status_t dequeue(camera_metadata_t **buf, bool incrementCount = false); + int getBufferCount(); + status_t waitForBuffer(nsecs_t timeout); + // Wait until a buffer with the given ID is dequeued. Will return + // immediately if the latest buffer dequeued has that ID. + status_t waitForDequeue(int32_t id, nsecs_t timeout); + + // Set repeating buffer(s); if the queue is empty on a dequeue call, the + // queue copies the contents of the stream slot into the queue, and then + // dequeues the first new entry. The metadata buffers passed in are + // copied. + status_t setStreamSlot(camera_metadata_t *buf); + status_t setStreamSlot(const List<camera_metadata_t*> &bufs); + + // Clear the request queue and the streaming slot + status_t clear(); + + status_t dump(int fd, const Vector<String16>& args); + + private: + status_t signalConsumerLocked(); + status_t freeBuffers(List<camera_metadata_t*>::iterator start, + List<camera_metadata_t*>::iterator end); + + camera2_device_t *mHal2Device; + + Mutex mMutex; + Condition notEmpty; + + int mFrameCount; + int32_t mLatestRequestId; + Condition mNewRequestId; + + int mCount; + List<camera_metadata_t*> mEntries; + int mStreamSlotCount; + List<camera_metadata_t*> mStreamSlot; + + bool mSignalConsumer; + + static MetadataQueue* getInstance( + const camera2_frame_queue_dst_ops_t *q); + static MetadataQueue* getInstance( + const camera2_request_queue_src_ops_t *q); + + static int consumer_buffer_count( + const camera2_request_queue_src_ops_t *q); + + static int consumer_dequeue(const camera2_request_queue_src_ops_t *q, + camera_metadata_t **buffer); + + static int consumer_free(const camera2_request_queue_src_ops_t *q, + camera_metadata_t *old_buffer); + + static int producer_dequeue(const camera2_frame_queue_dst_ops_t *q, + size_t entries, size_t bytes, + camera_metadata_t **buffer); + + static int producer_cancel(const camera2_frame_queue_dst_ops_t *q, + camera_metadata_t *old_buffer); + + static int producer_enqueue(const camera2_frame_queue_dst_ops_t *q, + camera_metadata_t *filled_buffer); + + }; // class MetadataQueue + + MetadataQueue mRequestQueue; + MetadataQueue mFrameQueue; + + /** + * Adapter from an ANativeWindow interface to camera2 device stream ops. + * Also takes care of allocating/deallocating stream in device interface + */ + class StreamAdapter: public camera2_stream_ops, public virtual RefBase { + public: + StreamAdapter(camera2_device_t *d); + + ~StreamAdapter(); + + /** + * Create a HAL device stream of the requested size and format. + * + * If format is CAMERA2_HAL_PIXEL_FORMAT_OPAQUE, then the HAL device + * selects an appropriate format; it can be queried with getFormat. + * + * If format is HAL_PIXEL_FORMAT_COMPRESSED, the size parameter must + * be equal to the size in bytes of the buffers to allocate for the + * stream. For other formats, the size parameter is ignored. + */ + status_t connectToDevice(sp<ANativeWindow> consumer, + uint32_t width, uint32_t height, int format, size_t size); + + status_t release(); + + status_t setTransform(int transform); + + // Get stream parameters. + // Only valid after a successful connectToDevice call. + int getId() const { return mId; } + uint32_t getWidth() const { return mWidth; } + uint32_t getHeight() const { return mHeight; } + uint32_t getFormat() const { return mFormat; } + + // Dump stream information + status_t dump(int fd, const Vector<String16>& args); + + private: + enum { + ERROR = -1, + RELEASED = 0, + ALLOCATED, + CONNECTED, + ACTIVE + } mState; + + sp<ANativeWindow> mConsumerInterface; + camera2_device_t *mHal2Device; + + uint32_t mId; + uint32_t mWidth; + uint32_t mHeight; + uint32_t mFormat; + size_t mSize; + uint32_t mUsage; + uint32_t mMaxProducerBuffers; + uint32_t mMaxConsumerBuffers; + uint32_t mTotalBuffers; + int mFormatRequested; + + /** Debugging information */ + uint32_t mActiveBuffers; + uint32_t mFrameCount; + int64_t mLastTimestamp; + + const camera2_stream_ops *getStreamOps(); + + static ANativeWindow* toANW(const camera2_stream_ops_t *w); + + static int dequeue_buffer(const camera2_stream_ops_t *w, + buffer_handle_t** buffer); + + static int enqueue_buffer(const camera2_stream_ops_t* w, + int64_t timestamp, + buffer_handle_t* buffer); + + static int cancel_buffer(const camera2_stream_ops_t* w, + buffer_handle_t* buffer); + + static int set_crop(const camera2_stream_ops_t* w, + int left, int top, int right, int bottom); + }; // class StreamAdapter + + typedef List<sp<StreamAdapter> > StreamList; + StreamList mStreams; + + /** + * Adapter from an ANativeWindow interface to camera2 device stream ops. + * Also takes care of allocating/deallocating stream in device interface + */ + class ReprocessStreamAdapter: public camera2_stream_in_ops, public virtual RefBase { + public: + ReprocessStreamAdapter(camera2_device_t *d); + + ~ReprocessStreamAdapter(); + + /** + * Create a HAL device reprocess stream based on an existing output stream. + */ + status_t connectToDevice(const sp<StreamAdapter> &outputStream); + + status_t release(); + + /** + * Push buffer into stream for reprocessing. Takes ownership until it notifies + * that the buffer has been released + */ + status_t pushIntoStream(buffer_handle_t *handle, + const wp<BufferReleasedListener> &releaseListener); + + /** + * Get stream parameters. + * Only valid after a successful connectToDevice call. + */ + int getId() const { return mId; } + uint32_t getWidth() const { return mWidth; } + uint32_t getHeight() const { return mHeight; } + uint32_t getFormat() const { return mFormat; } + + // Dump stream information + status_t dump(int fd, const Vector<String16>& args); + + private: + enum { + ERROR = -1, + RELEASED = 0, + ACTIVE + } mState; + + sp<ANativeWindow> mConsumerInterface; + wp<StreamAdapter> mBaseStream; + + struct QueueEntry { + buffer_handle_t *handle; + wp<BufferReleasedListener> releaseListener; + }; + + List<QueueEntry> mQueue; + + List<QueueEntry> mInFlightQueue; + + camera2_device_t *mHal2Device; + + uint32_t mId; + uint32_t mWidth; + uint32_t mHeight; + uint32_t mFormat; + + /** Debugging information */ + uint32_t mActiveBuffers; + uint32_t mFrameCount; + int64_t mLastTimestamp; + + const camera2_stream_in_ops *getStreamOps(); + + static int acquire_buffer(const camera2_stream_in_ops_t *w, + buffer_handle_t** buffer); + + static int release_buffer(const camera2_stream_in_ops_t* w, + buffer_handle_t* buffer); + + }; // class ReprocessStreamAdapter + + typedef List<sp<ReprocessStreamAdapter> > ReprocessStreamList; + ReprocessStreamList mReprocessStreams; + + // Receives HAL notifications and routes them to the NotificationListener + static void notificationCallback(int32_t msg_type, + int32_t ext1, + int32_t ext2, + int32_t ext3, + void *user); + +}; // class Camera2Device + +}; // namespace android + +#endif |