private PixelShaderConstant InitializePixelShaderConstantBuffer()
{
PixelShaderConstant pixelShaderConstant = new PixelShaderConstant();
pixelShaderConstant.InnerRadius = (float)m_configuration.InnerRadius;
pixelShaderConstant.OuterRadius = (float)m_configuration.OuterRadius;
pixelShaderConstant.MagnificationAmount = (float)m_configuration.MagnificationAmount;
pixelShaderConstant.HorizontalPosition = (float)m_configuration.HorizontalPosition;
pixelShaderConstant.VerticalPosition = (float)m_configuration.VerticalPosition;
pixelShaderConstant.AspectRatio = (float)m_configuration.AspectRatio;
return(pixelShaderConstant);
}
public MagnifySmoothEffectDirect2DWorker(MagnifySmoothEffect configuration)
{
InputCount = 1;
m_configuration = configuration;
PixelShader = m_configuration.PixelShader;
PixelShaderConstant pixelShaderConstant = InitializePixelShaderConstantBuffer();
PixelShaderConstantBuffer = StructureToIBuffer(pixelShaderConstant);
}
private IBuffer StructureToIBuffer(PixelShaderConstant pixelShaderConstant)
{
int length = Marshal.SizeOf <PixelShaderConstant>(pixelShaderConstant);
byte[] pixelShaderConstantArray = new byte[length];
IntPtr ptr = Marshal.AllocHGlobal(length);
Marshal.StructureToPtr(pixelShaderConstant, ptr, true);
Marshal.Copy(ptr, pixelShaderConstantArray, 0, length);
Marshal.FreeHGlobal(ptr);
return(pixelShaderConstantArray.AsBuffer());
}
