BoundingRect[] DetectFingersFromImage(Canvas canvas, Texture2D image)
{
GraphicsDevice device = canvas.GetDevice();
DepthStencilBuffer dsOld = device.DepthStencilBuffer;
device.DepthStencilBuffer = canvas.GetDepthStencil();
device.SetRenderTarget(0, dsChain[0]);
canvas.DrawImage(image, Vector2.One * -1, Vector2.One, (int)ImageParameters.FlipY);
device.SetRenderTarget(0, null);
downsampleMaxLumShader.SetupShader(canvas);
for(int i = 1; i < dsChain.Length; i++)
{
device.Textures[0] = dsChain[i-1].GetTexture();
Vector2 invRes = Vector2.One / new Vector2(dsChain[i-1].Width, dsChain[i-1].Height);
device.SetVertexShaderConstant(CanvasShaderConstants.VC_INVTEXRES, invRes);
device.SetPixelShaderConstant(0, invRes);
device.SetRenderTarget(0, dsChain[i]);
CanvasPrimitives.Quad.Render(canvas);
device.SetRenderTarget(0, null);
}
biasLumShader.SetupShader(canvas);
int idx = dsChain.Length - 1;
device.Textures[0] = dsChain[idx].GetTexture();
Vector2 iRes = Vector2.One / new Vector2(dsChain[idx].Width, dsChain[idx].Height);
device.SetVertexShaderConstant(CanvasShaderConstants.VC_INVTEXRES, iRes);
device.SetRenderTarget(0, dsChain[idx]);
CanvasPrimitives.Quad.Render(canvas);
device.SetRenderTarget(0, null);
device.DepthStencilBuffer = dsOld;
return FloodFillBounds(dsChain[idx].GetTexture());
}
public void CompositeFinalImage(Canvas canvas)
{
BoundingRect[] drawRects = GetCameraDrawBoxes();
GraphicsDevice device = canvas.GetDevice();
DepthStencilBuffer dsOld = device.DepthStencilBuffer;
device.DepthStencilBuffer = canvas.GetDepthStencil();
device.SetRenderTarget(0, renderTarget);
canvas.DrawImage(cameraAImage, drawRects[0].Min, drawRects[0].Max, (int)(ImageParameters.FlipY));
canvas.DrawImage(cameraBImage, drawRects[1].Min, drawRects[1].Max, (int)(ImageParameters.FlipY));
device.RenderState.AlphaBlendEnable = true;
device.RenderState.SourceBlend = Blend.SourceAlpha;
device.RenderState.DestinationBlend = Blend.InverseSourceAlpha;
canvas.DrawImage(renderLayerA.GetImage(), drawRects[0].Min, drawRects[0].Max);
canvas.DrawImage(renderLayerB.GetImage(), drawRects[1].Min, drawRects[1].Max);
device.SetRenderTarget(0, null);
device.DepthStencilBuffer = dsOld;
//RenderMatrixStyle(canvas);
//RenderEdgesStyle(canvas);
//CanvasPrimitives.Quad.SetPositions(Vector2.One * -2, Vector2.One);
device.RenderState.DepthBufferEnable = false;
device.RenderState.DepthBufferWriteEnable = false;
canvas.DrawImage(renderTarget.GetTexture());
/*
CanvasPrimitives.Quad.SetPositions(Vector2.One * -1, Vector2.One);
device.RenderState.DepthBufferEnable = true;
device.RenderState.DepthBufferWriteEnable = true;
render3D.SetupShader(canvas);
Matrix scaleMat = Matrix.CreateScale(0.05f);
device.SetVertexShaderConstant(CanvasShaderConstants.VC_MODELVIEW, virtualCameraA.ViewProjection);
for (int i = 0; i < detectionPoints.Length; i++)
{
device.SetPixelShaderConstant(0, fingerColors[i % fingerColors.Length].ToVector4());
scaleMat.Translation = detectionPoints[i].Center;
device.SetVertexShaderConstant(CanvasShaderConstants.VC_WORLD, scaleMat);
CanvasPrimitives.Quad.Render(canvas);
}
*/
}
