public void BindAttribute(
MidFacetDecl midFacet,
MidAttributeDecl midAttr,
Func <IEmitBlock, IEmitVal, IEmitVal> accessor,
IEmitType type,
string name)
{
int ii = 0;
foreach (var a in midFacet.Attributes)
{
if (a == midAttr)
{
Attributes[ii] = new ShaderAttributeInfo
{
AttributeDecl = midAttr,
Accessor = accessor,
Type = type,
Name = name,
};
return;
}
++ii;
}
throw new NotImplementedException();
}
private ShaderFacetInfo CreateDirectFacet(
MidFacetDecl midFacet,
MidElementDecl constantElement,
MidElementDecl uniformElement,
IEmitClass ifaceClass,
EmitEnv env)
{
var midAttributes = midFacet.Attributes.ToArray();
var attributeCount = midAttributes.Length;
var attributeInfos = new ShaderAttributeInfo[attributeCount];
var result = new ShaderFacetInfo
{
OriginalClass = midFacet.OriginalShaderClass.Decl,
FacetAccessor = (b, shaderObj) => shaderObj,
Attributes = attributeInfos
};
for (int ii = 0; ii < attributeCount; ++ii)
{
var midAttribute = midAttributes[ii];
var midElement = midAttribute.Element;
if (midAttribute.IsAbstract)
{
continue;
}
if (midElement == constantElement)
{
if (midAttribute.Exp == null)
{
continue;
}
env.Insert(midAttribute,
(b) => EmitExp(midAttribute.Exp, b, env));
}
else if (midElement == uniformElement)
{
if (midAttribute.Exp != null)
{
continue;
}
if (!midAttribute.IsInput)
{
continue;
}
var attrType = EmitType(midAttribute.Type, env);
var attrName = midAttribute.Name.ToString();
ifaceClass.WrapperWriteLine("");
ifaceClass.WrapperWriteLine(
"// input @Uniform {0} {1}",
midAttribute.Type,
attrName);
var attrField = ifaceClass.AddFieldAndAccessors(
attrType,
attrName);
var attrInfo = new ShaderAttributeInfo();
attrInfo.AttributeDecl = midAttribute;
attrInfo.Accessor =
(b, shaderObj) => b.GetArrow(
shaderObj,
attrField);
attrInfo.Type = attrType;
attrInfo.Name = attrName;
attributeInfos[ii] = attrInfo;
}
}
return(result);
}
