gecko/dom/camera/GonkCameraHwMgr.h

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4.5 KiB
C++

/*
* Copyright (C) 2012 Mozilla Foundation
*
* 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 DOM_CAMERA_GONKCAMERAHWMGR_H
#define DOM_CAMERA_GONKCAMERAHWMGR_H
#include "libcameraservice/CameraHardwareInterface.h"
#include "binder/IMemory.h"
#include "mozilla/ReentrantMonitor.h"
#include "GonkCameraListener.h"
#include <utils/threads.h>
#include "GonkCameraControl.h"
#include "CameraCommon.h"
#include "GonkNativeWindow.h"
// config
#define GIHM_TIMING_RECEIVEFRAME 0
#define GIHM_TIMING_OVERALL 1
using namespace mozilla;
using namespace android;
namespace mozilla {
typedef class nsGonkCameraControl GonkCamera;
class GonkCameraHardware : GonkNativeWindowNewFrameCallback
{
protected:
GonkCameraHardware(GonkCamera* aTarget, uint32_t aCamera);
~GonkCameraHardware();
void Init();
static void DataCallback(int32_t aMsgType, const sp<IMemory> &aDataPtr, camera_frame_metadata_t* aMetadata, void* aUser);
static void NotifyCallback(int32_t aMsgType, int32_t ext1, int32_t ext2, void* aUser);
static void DataCallbackTimestamp(nsecs_t aTimestamp, int32_t aMsgType, const sp<IMemory>& aDataPtr, void* aUser);
public:
virtual void OnNewFrame() MOZ_OVERRIDE;
static void ReleaseHandle(uint32_t aHwHandle);
static uint32_t GetHandle(GonkCamera* aTarget, uint32_t aCamera);
/**
* The physical orientation of the camera sensor: 0, 90, 180, or 270.
*
* For example, suppose a device has a naturally tall screen. The
* back-facing camera sensor is mounted in landscape. You are looking at
* the screen. If the top side of the camera sensor is aligned with the
* right edge of the screen in natural orientation, the value should be
* 90. If the top side of a front-facing camera sensor is aligned with the
* right of the screen, the value should be 270.
*/
static int GetSensorOrientation(uint32_t aHwHandle);
static int AutoFocus(uint32_t aHwHandle);
static void CancelAutoFocus(uint32_t aHwHandle);
static int TakePicture(uint32_t aHwHandle);
static void CancelTakePicture(uint32_t aHwHandle);
static int StartPreview(uint32_t aHwHandle);
static void StopPreview(uint32_t aHwHandle);
static int PushParameters(uint32_t aHwHandle, const CameraParameters& aParams);
static void PullParameters(uint32_t aHwHandle, CameraParameters& aParams);
static int StartRecording(uint32_t aHwHandle);
static int StopRecording(uint32_t aHwHandle);
static int SetListener(uint32_t aHwHandle, const sp<GonkCameraListener>& aListener);
static void ReleaseRecordingFrame(uint32_t aHwHandle, const sp<IMemory>& aFrame);
static int StoreMetaDataInBuffers(uint32_t aHwHandle, bool aEnabled);
protected:
static GonkCameraHardware* sHw;
static uint32_t sHwHandle;
static GonkCameraHardware* GetHardware(uint32_t aHwHandle)
{
if (aHwHandle == sHwHandle) {
/**
* In the initial case, sHw will be null and sHwHandle will be 0,
* so even if this function is called with aHwHandle = 0, the
* result will still be null.
*/
return sHw;
}
return nullptr;
}
// Instance wrapper to make member function access easier.
int StartPreview();
uint32_t mCamera;
bool mClosing;
mozilla::ReentrantMonitor mMonitor;
uint32_t mNumFrames;
sp<CameraHardwareInterface> mHardware;
GonkCamera* mTarget;
camera_module_t* mModule;
sp<ANativeWindow> mWindow;
#if GIHM_TIMING_OVERALL
struct timespec mStart;
struct timespec mAutoFocusStart;
#endif
sp<GonkCameraListener> mListener;
bool mInitialized;
int mSensorOrientation;
bool IsInitialized()
{
return mInitialized;
}
private:
GonkCameraHardware(const GonkCameraHardware&) MOZ_DELETE;
GonkCameraHardware& operator=(const GonkCameraHardware&) MOZ_DELETE;
};
} // namespace mozilla
#endif // GONK_IMPL_HW_MGR_H