private static All GetFunc(GalComparisonOp func)
{
if ((int)func >= (int)All.Never &&
(int)func <= (int)All.Always)
{
return((All)func);
}
switch (func)
{
case GalComparisonOp.Never: return(All.Never);
case GalComparisonOp.Less: return(All.Less);
case GalComparisonOp.Equal: return(All.Equal);
case GalComparisonOp.Lequal: return(All.Lequal);
case GalComparisonOp.Greater: return(All.Greater);
case GalComparisonOp.NotEqual: return(All.Notequal);
case GalComparisonOp.Gequal: return(All.Gequal);
case GalComparisonOp.Always: return(All.Always);
}
throw new ArgumentException(nameof(func) + " \"" + func + "\" is not valid!");
}
public static DepthFunction GetDepthFunc(GalComparisonOp Func)
{
//Looks like the GPU can take it's own values (described in GalComparisonOp) and OpenGL values alike
if ((int)Func >= (int)DepthFunction.Never &&
(int)Func <= (int)DepthFunction.Always)
{
return((DepthFunction)Func);
}
switch (Func)
{
case GalComparisonOp.Never: return(DepthFunction.Never);
case GalComparisonOp.Less: return(DepthFunction.Less);
case GalComparisonOp.Equal: return(DepthFunction.Equal);
case GalComparisonOp.Lequal: return(DepthFunction.Lequal);
case GalComparisonOp.Greater: return(DepthFunction.Greater);
case GalComparisonOp.NotEqual: return(DepthFunction.Notequal);
case GalComparisonOp.Gequal: return(DepthFunction.Gequal);
case GalComparisonOp.Always: return(DepthFunction.Always);
}
throw new ArgumentException(nameof(Func));
}
private void SetDepth()
{
float ClearDepth = ReadRegisterFloat(NvGpuEngine3dReg.ClearDepth);
Gpu.Renderer.Rasterizer.SetClearDepth(ClearDepth);
bool Enable = (ReadRegister(NvGpuEngine3dReg.DepthTestEnable) & 1) != 0;
if (Enable)
{
Gpu.Renderer.Rasterizer.EnableDepthTest();
}
else
{
Gpu.Renderer.Rasterizer.DisableDepthTest();
}
if (!Enable)
{
return;
}
GalComparisonOp Func = (GalComparisonOp)ReadRegister(NvGpuEngine3dReg.DepthTestFunction);
Gpu.Renderer.Rasterizer.SetDepthFunction(Func);
}
public void SetStencilFunction(bool IsFrontFace, GalComparisonOp Func, int Ref, int Mask)
{
GL.StencilFuncSeparate(
IsFrontFace ? StencilFace.Front : StencilFace.Back,
OGLEnumConverter.GetStencilFunc(Func),
Ref,
Mask);
}
public static DepthFunction GetDepthFunc(GalComparisonOp Func)
{
if ((int)Func >= (int)DepthFunction.Never &&
(int)Func <= (int)DepthFunction.Always)
{
return((DepthFunction)Func);
}
throw new ArgumentException(nameof(Func));
}
public void SetDepthFunction(GalComparisonOp Func)
{
GL.DepthFunc(OGLEnumConverter.GetDepthFunc(Func));
}
public static StencilFunction GetStencilFunc(GalComparisonOp func)
{
return((StencilFunction)GetFunc(func));
}
public static DepthFunction GetDepthFunc(GalComparisonOp func)
{
return((DepthFunction)GetFunc(func));
}
public static StencilFunction GetStencilFunc(GalComparisonOp Func)
{
//OGL comparison values match, it's just an enum cast
return((StencilFunction)GetDepthFunc(Func));
}