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Diffstat (limited to 'services/camera/libcameraservice/api1/client2/ZslProcessor.h')
-rw-r--r-- | services/camera/libcameraservice/api1/client2/ZslProcessor.h | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/services/camera/libcameraservice/api1/client2/ZslProcessor.h b/services/camera/libcameraservice/api1/client2/ZslProcessor.h new file mode 100644 index 0000000..6d3cb85 --- /dev/null +++ b/services/camera/libcameraservice/api1/client2/ZslProcessor.h @@ -0,0 +1,135 @@ +/* + * 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_CAMERA2_ZSLPROCESSOR_H +#define ANDROID_SERVERS_CAMERA_CAMERA2_ZSLPROCESSOR_H + +#include <utils/Thread.h> +#include <utils/String16.h> +#include <utils/Vector.h> +#include <utils/Mutex.h> +#include <utils/Condition.h> +#include <gui/BufferItemConsumer.h> +#include <camera/CameraMetadata.h> + +#include "common/CameraDeviceBase.h" +#include "api1/client2/ZslProcessorInterface.h" +#include "api1/client2/FrameProcessor.h" + +namespace android { + +class Camera2Client; + +namespace camera2 { + +class CaptureSequencer; +class Parameters; + +/*** + * ZSL queue processing + */ +class ZslProcessor: + virtual public Thread, + virtual public BufferItemConsumer::FrameAvailableListener, + virtual public FrameProcessor::FilteredListener, + virtual public CameraDeviceBase::BufferReleasedListener, + public ZslProcessorInterface { + public: + ZslProcessor(sp<Camera2Client> client, wp<CaptureSequencer> sequencer); + ~ZslProcessor(); + + // From mZslConsumer + virtual void onFrameAvailable(); + // From FrameProcessor + virtual void onFrameAvailable(int32_t requestId, const CameraMetadata &frame); + + virtual void onBufferReleased(buffer_handle_t *handle); + + /** + **************************************** + * ZslProcessorInterface implementation * + **************************************** + */ + + status_t updateStream(const Parameters ¶ms); + status_t deleteStream(); + int getStreamId() const; + + status_t pushToReprocess(int32_t requestId); + status_t clearZslQueue(); + + void dump(int fd, const Vector<String16>& args) const; + private: + static const nsecs_t kWaitDuration = 10000000; // 10 ms + + enum { + RUNNING, + LOCKED + } mState; + + wp<Camera2Client> mClient; + wp<CameraDeviceBase> mDevice; + wp<CaptureSequencer> mSequencer; + int mId; + + mutable Mutex mInputMutex; + bool mZslBufferAvailable; + Condition mZslBufferAvailableSignal; + + enum { + NO_STREAM = -1 + }; + + int mZslStreamId; + int mZslReprocessStreamId; + sp<BufferItemConsumer> mZslConsumer; + sp<ANativeWindow> mZslWindow; + + struct ZslPair { + BufferItemConsumer::BufferItem buffer; + CameraMetadata frame; + }; + + static const size_t kZslBufferDepth = 4; + static const size_t kFrameListDepth = kZslBufferDepth * 2; + Vector<CameraMetadata> mFrameList; + size_t mFrameListHead; + + ZslPair mNextPair; + + Vector<ZslPair> mZslQueue; + size_t mZslQueueHead; + size_t mZslQueueTail; + + CameraMetadata mLatestCapturedRequest; + + virtual bool threadLoop(); + + status_t processNewZslBuffer(); + + // Match up entries from frame list to buffers in ZSL queue + void findMatchesLocked(); + + status_t clearZslQueueLocked(); + + void dumpZslQueue(int id) const; +}; + + +}; //namespace camera2 +}; //namespace android + +#endif |