private void Clear( )
{
mSTVideoCapture = null;
mGR = null;
mTextureDataBGR256x256 = null;
mTextureOpenGLHandleBGR256x256 = 0;
mVideoLUT256 = null;
mProcessXMin = 32;
mProcessYMin = 160;
mProcessXMax = 96;
mProcessYMax = 224;
mCurrentClassification = (-1);
}
Initialize
(
GR gr,
IntPtr hwndParentWindow
)
{
this.Clear( );
// Cache the GR instance
this.mGR = gr;
this.mTextureDataBGR256x256 = new byte[(256 * (256 * 3))];
this.mSTVideoCapture = new STVideoCapture();
int capturePeriodMilliseconds = 33; // 33 milliseconds --> 30 frames per second (max)
// Attempt to initialize video capture
bool videoCaptureInitializationResult = false;
videoCaptureInitializationResult =
this.mSTVideoCapture.Initialize
(
hwndParentWindow,
STVideoCapture.STVideoCaptureFormat.BGR320x240,
capturePeriodMilliseconds,
new STVideoCapture.DelegateClientCaptureCallback(this.ClientCaptureCallback)
);
if (false == videoCaptureInitializationResult)
{
return(false);
}
// Create OpenGL texture object
int[] temp = new int[1];
gr.glGenTextures(1, temp);
this.mTextureOpenGLHandleBGR256x256 = temp[0];
// Fill the OpenGL texture with initial data
gr.glBindTexture
(
GR.GL_TEXTURE_2D,
this.mTextureOpenGLHandleBGR256x256
);
gr.glTexImage2D
(
GR.GL_TEXTURE_2D,
0,
3,
256,
256,
0,
GR.GL_BGR_EXT,
GR.GL_UNSIGNED_BYTE,
this.mTextureDataBGR256x256
);
// Set texture mapping mode and filtering modes
gr.glTexParameteri(GR.GL_TEXTURE_2D, GR.GL_TEXTURE_WRAP_S, GR.GL_REPEAT);
gr.glTexParameteri(GR.GL_TEXTURE_2D, GR.GL_TEXTURE_WRAP_T, GR.GL_REPEAT);
gr.glTexParameterf(GR.GL_TEXTURE_2D, GR.GL_TEXTURE_MIN_FILTER, GR.GL_LINEAR);
gr.glTexParameterf(GR.GL_TEXTURE_2D, GR.GL_TEXTURE_MAG_FILTER, GR.GL_LINEAR);
// deselect the current texture
gr.glBindTexture(GR.GL_TEXTURE_2D, 0);
return(true);
}
