/// <summary>
/// Once we have a context, we are able to peform various setup routines
/// that require us to connect to OpenGL.
/// </summary>
protected override void OnSetContext()
{
//fCamera1 = VideoTexture.CreateFromDeviceIndex(GI, 0, 640, 480);
fCamera1 = VideoTexture.CreateFromDeviceIndex(GI, 0, true);
// Turn off features that we don't need, and they
// just slow down video processing
GI.Features.AlphaTest.Disable();
GI.Features.Blend.Disable();
GI.Features.DepthTest.Disable();
GI.Features.Dither.Disable();
GI.Features.Fog.Disable();
GI.Features.Lighting.Disable();
// Create the FaceMesh that will receive the gray texture so we
// can break it up into 8x8 squares
fFaceSize = new Vector3D(fCamera1.Width, fCamera1.Height, 0);
fBackgroundCreator = new RGBToGray(GI, fCamera1.Width, fCamera1.Height);
fBackgroundCopier = new UnaryTextureProcessor(GI, fCamera1.Width, fCamera1.Height);
fBackgroundPixellator = new Pixellate(GI, fCamera1.Width, fCamera1.Height, 8);
fImageOperator = new UnaryTextureProcessor(GI, fCamera1.Width, fCamera1.Height);
fGrayConverter = new RGBToGray(GI, fCamera1.Width, fCamera1.Height);
fGammaCorrection = new PowerLawTransform(GI, fCamera1.Width, fCamera1.Height, 1.0f);
fLuminanceThreshold = new LuminanceThreshold(GI, fCamera1.Width, fCamera1.Height, 0f);
fLuminanceBinarizer = new LuminanceBinarizer(GI, fCamera1.Width, fCamera1.Height, 0.3f);
fLuminanceBinarizer.OverColor = ColorRGBA.Black;
fLuminanceBinarizer.UnderColor = ColorRGBA.White;
fPixellate = new Pixellate(GI, fCamera1.Width, fCamera1.Height,8);
fBlocker = new BlockProcessor(GI, fCamera1.Width, fCamera1.Height, 2);
fAverager = new AverageProcessor(GI, fCamera1.Width, fCamera1.Height);
fMorpher = new Morph(GI, fCamera1.Width, fCamera1.Height);
fEdgeEnhance = new ConvolutionProcessor(GI, fCamera1.Width, fCamera1.Height, ConvolutionKernel.EdgeEnhance);
fEdgeEnhance.Distance = 4;
fEmboss = new ConvolutionProcessor(GI, fCamera1.Width, fCamera1.Height, ConvolutionKernel.Emboss);
fSoften = new ConvolutionProcessor(GI, fCamera1.Width, fCamera1.Height, ConvolutionKernel.GaussianBlur);
fSoften.Distance = 4;
fSobell = new ConvolutionProcessor(GI, fCamera1.Width, fCamera1.Height, ConvolutionKernel.Sobell);
fLaplacian = new ConvolutionProcessor(GI, fCamera1.Width, fCamera1.Height, ConvolutionKernel.Laplacian);
fDifference = new DifferenceProcessor(GI, fCamera1.Width, fCamera1.Height);
// We want replace mode because we don't care about
// the values that are currently in place, we just want
// to replace them.
GI.TexEnv(TextureEnvModeParam.Replace);
fGrayMesh = new XYAxesMesh(GI, new Vector3D(fCamera1.Width, fCamera1.Height, 0), new Resolution(2, 2), null);
fPointMesh = new XYAxesPointMesh(GI, new Vector3D(fCamera1.Width, fCamera1.Height, 0), new Resolution(fCamera1.Width/4, fCamera1.Height/4), null);
}
protected override void DrawBegin()
{
// Start with viewport covering whole window
GI.Viewport(0, 0, fViewWidth, fViewHeight);
// Create an orthographic view so we can draw
// using 2D coordinates and not really worry about the
// camera position
GI.MatrixMode(MatrixMode.Projection);
GI.LoadIdentity();
GI.Ortho(0, fViewWidth, 0, fViewHeight, -1.0, 1.0);
// Clear the color buffer to an unlikely color so
// that we can see where the drawing is NOT occuring
GI.Buffers.ColorBuffer.Color = new ColorRGBA(1, 0, 0, 1); ;
GI.Buffers.ColorBuffer.Clear();
// If the resolution of the mesh changed since the last time we were
// drawing, recreate the mesh using the newest dimensions.
if (fResolutionChanged)
{
Console.WriteLine("Block Size: {0}", fBlockSize);
fResolutionChanged = false;
fResolution = new Resolution(fVideoTexture.Width / fBlockSize, fVideoTexture.Height / fBlockSize);
fFaceMesh = new XYAxesMesh(fFaceSize, fResolution, fYTexture);
}
}