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Diffstat (limited to 'camera/inc/ANativeWindowDisplayAdapter.h')
| -rw-r--r-- | camera/inc/ANativeWindowDisplayAdapter.h | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/camera/inc/ANativeWindowDisplayAdapter.h b/camera/inc/ANativeWindowDisplayAdapter.h new file mode 100644 index 0000000..eba91bb --- /dev/null +++ b/camera/inc/ANativeWindowDisplayAdapter.h @@ -0,0 +1,196 @@ +/* + * Copyright (C) Texas Instruments - http://www.ti.com/ + * + * 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. + */ + + + +#include "CameraHal.h" +#include <ui/GraphicBufferMapper.h> +#include <hal_public.h> + +namespace Ti { +namespace Camera { + +/** + * Display handler class - This class basically handles the buffer posting to display + */ + +class ANativeWindowDisplayAdapter : public DisplayAdapter +{ +public: + + typedef struct + { + CameraBuffer *mBuffer; + void *mUser; + int mOffset; + int mWidth; + int mHeight; + int mWidthStride; + int mHeightStride; + int mLength; + CameraFrame::FrameType mType; + } DisplayFrame; + + enum DisplayStates + { + DISPLAY_INIT = 0, + DISPLAY_STARTED, + DISPLAY_STOPPED, + DISPLAY_EXITED + }; + +public: + + ANativeWindowDisplayAdapter(); + virtual ~ANativeWindowDisplayAdapter(); + + ///Initializes the display adapter creates any resources required + virtual status_t initialize(); + + virtual int setPreviewWindow(struct preview_stream_ops *window); + virtual int setFrameProvider(FrameNotifier *frameProvider); + virtual int setErrorHandler(ErrorNotifier *errorNotifier); + virtual int enableDisplay(int width, int height, struct timeval *refTime = NULL); + virtual int disableDisplay(bool cancel_buffer = true); + virtual status_t pauseDisplay(bool pause); + +#if PPM_INSTRUMENTATION || PPM_INSTRUMENTATION_ABS + + //Used for shot to snapshot measurement + virtual status_t setSnapshotTimeRef(struct timeval *refTime = NULL); + +#endif + + virtual bool supportsExternalBuffering(); + + //Implementation of inherited interfaces + virtual CameraBuffer * allocateBufferList(int width, int height, const char* format, int &bytes, int numBufs); + virtual CameraBuffer *getBufferList(int *numBufs); + virtual uint32_t * getOffsets() ; + virtual int getFd() ; + virtual int freeBufferList(CameraBuffer * buflist); + + virtual status_t maxQueueableBuffers(unsigned int& queueable); + virtual status_t minUndequeueableBuffers(int& unqueueable); + + // If set to true ANativeWindowDisplayAdapter will not lock/unlock graphic buffers + void setExternalLocking(bool extBuffLocking); + + ///Class specific functions + static void frameCallbackRelay(CameraFrame* caFrame); + void frameCallback(CameraFrame* caFrame); + + void displayThread(); + + private: + void destroy(); + bool processHalMsg(); + status_t PostFrame(ANativeWindowDisplayAdapter::DisplayFrame &dispFrame); + bool handleFrameReturn(); + status_t returnBuffersToWindow(); + +public: + + static const int DISPLAY_TIMEOUT; + static const int FAILED_DQS_TO_SUSPEND; + + class DisplayThread : public android::Thread + { + ANativeWindowDisplayAdapter* mDisplayAdapter; + Utils::MessageQueue mDisplayThreadQ; + + public: + DisplayThread(ANativeWindowDisplayAdapter* da) + : Thread(false), mDisplayAdapter(da) { } + + ///Returns a reference to the display message Q for display adapter to post messages + Utils::MessageQueue& msgQ() + { + return mDisplayThreadQ; + } + + virtual bool threadLoop() + { + mDisplayAdapter->displayThread(); + return false; + } + + enum DisplayThreadCommands + { + DISPLAY_START, + DISPLAY_STOP, + DISPLAY_FRAME, + DISPLAY_EXIT + }; + }; + + //friend declarations +friend class DisplayThread; + +private: + int postBuffer(void* displayBuf); + +private: + bool mFirstInit; + bool mSuspend; + int mFailedDQs; + bool mPaused; //Pause state + preview_stream_ops_t* mANativeWindow; + android::sp<DisplayThread> mDisplayThread; + FrameProvider *mFrameProvider; ///Pointer to the frame provider interface + Utils::MessageQueue mDisplayQ; + unsigned int mDisplayState; + ///@todo Have a common class for these members + mutable android::Mutex mLock; + bool mDisplayEnabled; + int mBufferCount; + CameraBuffer *mBuffers; + //buffer_handle_t** mBufferHandleMap; // -> frames[i].BufferHandle + //IMG_native_handle_t** mGrallocHandleMap; // -> frames[i].GrallocHandle + uint32_t* mOffsetsMap; // -> frames[i].Offset + int mFD; + android::KeyedVector<buffer_handle_t *, int> mFramesWithCameraAdapterMap; + android::KeyedVector<int, int> mFramesType; + android::sp<ErrorNotifier> mErrorNotifier; + + uint32_t mFrameWidth; + uint32_t mFrameHeight; + uint32_t mPreviewWidth; + uint32_t mPreviewHeight; + + uint32_t mXOff; + uint32_t mYOff; + + const char *mPixelFormat; + + //In case if we ,as example, using out buffers in Ducati Decoder + //DOMX will handle lock/unlock of graphic buffers + bool mUseExternalBufferLocking; + +#if PPM_INSTRUMENTATION || PPM_INSTRUMENTATION_ABS + //Used for calculating standby to first shot + struct timeval mStandbyToShot; + bool mMeasureStandby; + //Used for shot to snapshot/shot calculation + struct timeval mStartCapture; + bool mShotToShot; + +#endif + +}; + +} // namespace Camera +} // namespace Ti |