Inherits Activity.

Public Member Functions
void	onCreate (Bundle savedInstanceState)
boolean	onCreateOptionsMenu (Menu menu)
void	setCallback ()
abstract void	update (byte[] data, int w, int h)
abstract void	cleanup ()
void	requestRender ()
Protected Member Functions
void	onResume ()
void	bringControlsToFront ()
void	onPause ()
void	setupCamera ()
void	startPreview ()
void	stopPreview ()
abstract void	initTitle ()
Protected Attributes
int	mMainLayout = R.layout.main
Camera	mCamera
GLSurfaceView	mGLSurface = null
CameraSurface	mCamSurface = null
ViewGroup	mRootViewGroup = null
FastCVSampleRenderer	mRenderer
TextView[]	mText = new TextView[3]
ToggleButton	tbtnStartStop
boolean	mPreviewRunning = false
byte[]	mPreviewBuffer = null
final int	mBackgroundColor = 0xFF728FCE
final int	mTextColor = 0xFFFFFFFF
float	mProcessTime = 10
int	mPreviewWidth
int	mPreviewHeight
Handler	mProfileHandler = new Handler()
long	mProfilePeriod = 300
long	startTime
FastCVUtil	util = new FastCVUtil()
final Camera.PreviewCallback	mCameraCallback
Runnable	mUpdateTimeTask
Static Protected Attributes
static final String	TAG = "FastCVDemo"
static int	mDesiredWidth = 800
static int	mDesiredHeight = 480
static String	title = "FastCVDemo"

Detailed Description

The main activity for the FastCV FAST Corner sample app.

Member Function Documentation

void com.qualcomm.fastcvdemo.base.GraphicalActivity.bringControlsToFront ( ) [inline, protected]

Brings the controls to the foreground

abstract void com.qualcomm.fastcvdemo.base.GraphicalActivity.cleanup ( ) [pure virtual]

Performs native cleanup routines for application exit.

void com.qualcomm.fastcvdemo.base.GraphicalActivity.onCreate ( Bundle savedInstanceState ) [inline]

Called when the activity is first created.

boolean com.qualcomm.fastcvdemo.base.GraphicalActivity.onCreateOptionsMenu ( Menu menu ) [inline]

Creates the options menu

Parameters:

menu

Reimplemented in com.qualcomm.fastcvdemo.apis.imageProcessing.ImageGradient, com.qualcomm.fastcvdemo.apis.imageTransformation.ScaleDownMN, com.qualcomm.fastcvdemo.apis.imageProcessing.Filter, com.qualcomm.fastcvdemo.apis.imageTransformation.Affine, com.qualcomm.fastcvdemo.apis.imageTransformation.Rotate, com.qualcomm.fastcvdemo.apis.imageTransformation.Scale, com.qualcomm.fastcvdemo.apis.imageTransformation.Warp, and com.qualcomm.fastcvdemo.apis.imageProcessing.FilterCorr.

void com.qualcomm.fastcvdemo.base.GraphicalActivity.onPause ( ) [inline, protected]

Suspends camera preview, cleans up the renderer

void com.qualcomm.fastcvdemo.base.GraphicalActivity.onResume ( ) [inline, protected]

Resumes camera preview

Reimplemented in com.qualcomm.fastcvdemo.apis.featureDetection.Corner, com.qualcomm.fastcvdemo.apis.imageProcessing.ImageGradient, com.qualcomm.fastcvdemo.apis.imageTransformation.ScaleDownMN, com.qualcomm.fastcvdemo.apis.imageTransformation.Affine, and com.qualcomm.fastcvdemo.apis.imageProcessing.ImgDiff.

void com.qualcomm.fastcvdemo.base.GraphicalActivity.requestRender ( ) [inline]

Request render for on demand rendering.

void com.qualcomm.fastcvdemo.base.GraphicalActivity.setCallback ( ) [inline]

Sets the Camera preview callback

void com.qualcomm.fastcvdemo.base.GraphicalActivity.setupCamera ( ) [inline, protected]

Sets up camera configuration parameters

void com.qualcomm.fastcvdemo.base.GraphicalActivity.startPreview ( ) [inline, protected]

Starts camera preview

Reimplemented in com.qualcomm.fastcvdemo.apis.featureDetection.Corner.

void com.qualcomm.fastcvdemo.base.GraphicalActivity.stopPreview ( ) [inline, protected]

Stops camera preview

Reimplemented in com.qualcomm.fastcvdemo.apis.featureDetection.Corner.

abstract void com.qualcomm.fastcvdemo.base.GraphicalActivity.update	(	byte[]	data,
		int	w,
		int	h
	)		`[pure virtual]`

Function to pass camera frame for native, FastCV processing.

Parameters:

data	Byte buffer for data.
w	Width of data
h	Height of data

Field Documentation

final int com.qualcomm.fastcvdemo.base.GraphicalActivity.mBackgroundColor = 0xFF728FCE [protected]

Background color for text boxes.

Camera com.qualcomm.fastcvdemo.base.GraphicalActivity.mCamera [protected]

Android camera object

final Camera.PreviewCallback com.qualcomm.fastcvdemo.base.GraphicalActivity.mCameraCallback [protected]

Initial value:

 
      new Camera.PreviewCallback()
   {
      
      public void onPreviewFrame( byte[] data, Camera c )
      {
         
         util.cameraFrameTick();

         
         update( data, mDesiredWidth, mDesiredHeight );
         
         
         mProcessTime = util.getFastCVProcessTime();

         if( c != null )
         {
            
            c.addCallbackBuffer( mPreviewBuffer );
            c.setPreviewCallbackWithBuffer( this );
         }
         
         
         requestRender();
      }
   }

Camera callback to retrieve camera frames.

CameraSurface com.qualcomm.fastcvdemo.base.GraphicalActivity.mCamSurface = null [protected]

Surface Holder for camera, Camera API requirement

int com.qualcomm.fastcvdemo.base.GraphicalActivity.mDesiredHeight = 480 [static, protected]

Height to try and configure camera preview

int com.qualcomm.fastcvdemo.base.GraphicalActivity.mDesiredWidth = 800 [static, protected]

Width to try and configure camera preview

GLSurfaceView com.qualcomm.fastcvdemo.base.GraphicalActivity.mGLSurface = null [protected]

GL Surface view to render camera and corners via GPU

int com.qualcomm.fastcvdemo.base.GraphicalActivity.mMainLayout = R.layout.main [protected]

Main layout

byte [] com.qualcomm.fastcvdemo.base.GraphicalActivity.mPreviewBuffer = null [protected]