MTLCompareFunction TranslateCompareFunction(MgCompareOp compareOp)
{
switch (compareOp)
{
default:
throw new NotSupportedException();
case MgCompareOp.ALWAYS:
return(MTLCompareFunction.Always);
case MgCompareOp.EQUAL:
return(MTLCompareFunction.Equal);
case MgCompareOp.GREATER:
return(MTLCompareFunction.Greater);
case MgCompareOp.GREATER_OR_EQUAL:
return(MTLCompareFunction.GreaterEqual);
case MgCompareOp.LESS:
return(MTLCompareFunction.Less);
case MgCompareOp.LESS_OR_EQUAL:
return(MTLCompareFunction.LessEqual);
case MgCompareOp.NEVER:
return(MTLCompareFunction.Never);
case MgCompareOp.NOT_EQUAL:
return(MTLCompareFunction.NotEqual);
}
}
private static GLStencilFunction GetStencilFunc(MgCompareOp function)
{
switch (function)
{
case MgCompareOp.ALWAYS:
return(GLStencilFunction.Always);
case MgCompareOp.EQUAL:
return(GLStencilFunction.Equal);
case MgCompareOp.GREATER:
return(GLStencilFunction.Greater);
case MgCompareOp.GREATER_OR_EQUAL:
return(GLStencilFunction.Gequal);
case MgCompareOp.LESS:
return(GLStencilFunction.Less);
case MgCompareOp.LESS_OR_EQUAL:
return(GLStencilFunction.Lequal);
case MgCompareOp.NEVER:
return(GLStencilFunction.Never);
case MgCompareOp.NOT_EQUAL:
return(GLStencilFunction.Notequal);
default:
return(GLStencilFunction.Always);
}
}
private static MTLCompareFunction GetDepthCompareFunction(MgCompareOp depthCompareOp)
{
switch (depthCompareOp)
{
default:
throw new NotSupportedException();
case MgCompareOp.LESS:
return(MTLCompareFunction.Less);
case MgCompareOp.LESS_OR_EQUAL:
return(MTLCompareFunction.LessEqual);
case MgCompareOp.GREATER:
return(MTLCompareFunction.Greater);
case MgCompareOp.GREATER_OR_EQUAL:
return(MTLCompareFunction.GreaterEqual);
case MgCompareOp.NEVER:
return(MTLCompareFunction.Never);
case MgCompareOp.NOT_EQUAL:
return(MTLCompareFunction.NotEqual);
case MgCompareOp.EQUAL:
return(MTLCompareFunction.Equal);
}
}
private static DepthFunction GetDepthFunction(MgCompareOp compare)
{
switch (compare)
{
default:
throw new NotSupportedException();
case MgCompareOp.ALWAYS:
return(DepthFunction.Always);
case MgCompareOp.EQUAL:
return(DepthFunction.Equal);
case MgCompareOp.GREATER:
return(DepthFunction.Greater);
case MgCompareOp.GREATER_OR_EQUAL:
return(DepthFunction.Gequal);
case MgCompareOp.LESS:
return(DepthFunction.Less);
case MgCompareOp.LESS_OR_EQUAL:
return(DepthFunction.Lequal);
case MgCompareOp.NEVER:
return(DepthFunction.Never);
case MgCompareOp.NOT_EQUAL:
return(DepthFunction.Notequal);
}
}
private static All GetCompareOp(MgCompareOp compareOp)
{
switch (compareOp)
{
case MgCompareOp.ALWAYS:
return(All.Always);
case MgCompareOp.EQUAL:
return(All.Equal);
case MgCompareOp.LESS:
return(All.Less);
case MgCompareOp.LESS_OR_EQUAL:
return(All.Lequal);
case MgCompareOp.GREATER:
return(All.Greater);
case MgCompareOp.GREATER_OR_EQUAL:
return(All.Gequal);
case MgCompareOp.NOT_EQUAL:
return(All.Notequal);
case MgCompareOp.NEVER:
return(All.Never);
default:
throw new NotSupportedException();
}
}
public void SetDepthBufferFunc(MgCompareOp func)
{
GL.DepthFunc(GetDepthFunction(func));
{
var error = GL.GetError();
if (error != ErrorCode.NoError)
{
Debug.WriteLine("SetDepthBufferFunc : " + error);
}
}
}
public void SetStencilFunction(
MgCompareOp stencilFunction,
int referenceStencil,
uint compare)
{
GL.StencilFunc(
GetStencilFunc(stencilFunction),
referenceStencil,
compare);
{
var error = GL.GetError();
if (error != ErrorCode.NoError)
{
Debug.WriteLine("SetStencilFunction : " + error);
}
}
}
public void SetBackFaceCullStencilFunction(MgCompareOp func, int referenceStencil, uint compare)
{
var cullFaceModeBack = StencilFace.Back;
GL.StencilFuncSeparate(
cullFaceModeBack,
GetStencilFunc(func),
referenceStencil,
compare);
{
var error = GL.GetError();
if (error != ErrorCode.NoError)
{
Debug.WriteLine("SetBackFaceCullStencilFunction : " + error);
}
}
}
public void SetStencilFunction(MgCompareOp stencilFunction, int referenceStencil, uint compare)
{
}
public void SetFrontFaceCullStencilFunction(MgCompareOp func, int referenceStencil, uint compare)
{
}
public void SetDepthBufferFunc(MgCompareOp func)
{
}
public void SetTextureCompareFunc(int samplerId, MgCompareOp compareOp)
{
GL.SamplerParameter(samplerId, SamplerParameterName.TextureCompareFunc, (int)GetCompareOp(compareOp));
mErrHandler.LogGLError("SamplerParameter (TextureCompareFunc)");
}
