public void SetBlendFunc(BlendFunc func)
{
//Debug.Assert(false);
// Debug.WriteLine("======================>SetBlendFunc not implemented");
// if (func != null)
// {
// this.SetBlendFunc(func.mode, func.srcFactor, func.dstFactor);
// }
// else
// {
// Debug.Assert(false);
// }
this.SetBlendFunc(func.mode, func.srcFactor, func.dstFactor);
__curBlendFunc = func;
}
public void SetBlendFuncAlpha(BlendFunc v)
{
// Debug.Assert(false);
__curBlendFuncAlpha = v;
}
public void SetBlendFuncRgb(BlendFunc v)
{
// Debug.Assert(false);
__curBlendFuncRgb = v;
}
public void SetBlendFunc(BlendFuncMode mode, BlendFuncFactor srcFactor, BlendFuncFactor dstFactor)
{
__blendFunc = new BlendFunc(mode, srcFactor, dstFactor);
BlendEquationMode _mode = BlendEquationMode.FuncAdd;
switch (mode)
{
case BlendFuncMode.Add:
_mode = BlendEquationMode.FuncAdd;
break;
default:
Debug.Assert(false);
break;
}
BlendingFactorSrc _src = BlendingFactorSrc.SrcAlpha;
BlendingFactorDest _dst = BlendingFactorDest.OneMinusSrcAlpha;
switch (srcFactor)
{
case BlendFuncFactor.Zero:
_src = BlendingFactorSrc.Zero;
break;
case BlendFuncFactor.SrcAlpha:
_src = BlendingFactorSrc.SrcAlpha;
break;
case BlendFuncFactor.OneMinusSrcAlpha:
_src = BlendingFactorSrc.OneMinusSrcAlpha;
break;
case BlendFuncFactor.One:
_src = BlendingFactorSrc.One;
break;
case BlendFuncFactor.DstColor:
_src = BlendingFactorSrc.DstColor;
break;
default:
Debug.Assert(false);
break;
}
switch (dstFactor)
{
case BlendFuncFactor.Zero:
_dst = BlendingFactorDest.Zero;
break;
case BlendFuncFactor.SrcAlpha:
_dst = BlendingFactorDest.SrcAlpha;
break;
case BlendFuncFactor.OneMinusSrcAlpha:
_dst = BlendingFactorDest.OneMinusSrcAlpha;
break;
case BlendFuncFactor.One:
_dst = BlendingFactorDest.One;
break;
case BlendFuncFactor.DstColor:
_dst = BlendingFactorDest.DstColor;
break;
default:
Debug.Assert(false);
break;
}
//FIXME:??????in SpriteSample, for sprite black bg problem
//GL.DepthMask(false); //not good
GL.Clear(ClearBufferMask.DepthBufferBit);
GL.BlendEquation(_mode);
GL.BlendFunc(_src, _dst);
}
