public static bool NeedsMultiStageDefinition(this KeywordDescriptor keyword, ref List <KeywordShaderStage> dstStages)
{
dstStages.Clear();
// All doesn't need special treatment.
if (keyword.stages == KeywordShaderStage.All)
{
return(false);
}
if ((keyword.stages & KeywordShaderStage.Vertex) == KeywordShaderStage.Vertex)
{
dstStages.Add(KeywordShaderStage.Vertex);
}
if ((keyword.stages & KeywordShaderStage.Hull) == KeywordShaderStage.Hull)
{
dstStages.Add(KeywordShaderStage.Hull);
}
if ((keyword.stages & KeywordShaderStage.Domain) == KeywordShaderStage.Domain)
{
dstStages.Add(KeywordShaderStage.Domain);
}
if ((keyword.stages & KeywordShaderStage.Geometry) == KeywordShaderStage.Geometry)
{
dstStages.Add(KeywordShaderStage.Geometry);
}
if ((keyword.stages & KeywordShaderStage.RayTracing) == KeywordShaderStage.RayTracing)
{
dstStages.Add(KeywordShaderStage.RayTracing);
}
return(dstStages.Count > 1);
}
public static ShaderKeyword CreateBuiltInKeyword(KeywordDescriptor descriptor)
{
if (descriptor.entries != null)
{
for (int i = 0; i < descriptor.entries.Length; i++)
{
if (descriptor.entries[i].id == -1)
{
descriptor.entries[i].id = i + 1;
}
}
}
return(new ShaderKeyword()
{
isBuiltIn = true,
displayName = descriptor.displayName,
overrideReferenceName = descriptor.referenceName,
keywordType = descriptor.type,
keywordDefinition = descriptor.definition,
keywordScope = descriptor.scope,
value = descriptor.value,
entries = descriptor.entries.ToList(),
});
}
public static string ToDefineString(this KeywordDescriptor keyword, int value)
{
switch (keyword.type)
{
case KeywordType.Boolean:
return(value == 1 ? $"#define {keyword.referenceName} 1" : string.Empty);
case KeywordType.Enum:
return($"#define {keyword.referenceName}_{keyword.entries[value].referenceName}");
default:
throw new ArgumentOutOfRangeException();
}
}
public static ShaderKeyword Create(KeywordDescriptor descriptor)
{
return(new ShaderKeyword()
{
m_IsExposable = false,
m_IsEditable = false,
displayName = descriptor.displayName,
overrideReferenceName = descriptor.referenceName,
keywordType = descriptor.type,
keywordDefinition = descriptor.definition,
keywordScope = descriptor.scope,
value = descriptor.value,
entries = descriptor.entries
});
}
public static string ToDeclarationString(this KeywordDescriptor keyword)
{
// Get definition type using scope
string scopeString = keyword.scope == KeywordScope.Local ? "_local" : string.Empty;
string definitionString = $"{keyword.definition.ToDeclarationString()}{scopeString}";
switch (keyword.type)
{
case KeywordType.Boolean:
return($"#pragma {definitionString} _ {keyword.referenceName}");
case KeywordType.Enum:
var enumEntryDefinitions = keyword.entries.Select(x => $"{keyword.referenceName}_{x.referenceName}");
string enumEntriesString = string.Join(" ", enumEntryDefinitions);
return($"#pragma {definitionString} {enumEntriesString}");
default:
throw new ArgumentOutOfRangeException();
}
}
public void Add(KeywordDescriptor descriptor, int index, FieldCondition[] fieldConditions)
{
m_Items.Add(new Item(descriptor, index, fieldConditions));
}
public void Add(KeywordDescriptor descriptor, int index, FieldCondition fieldCondition)
{
m_Items.Add(new Item(descriptor, index, new FieldCondition[] { fieldCondition }));
}
public void Add(KeywordDescriptor descriptor, int index)
{
m_Items.Add(new Item(descriptor, index, null));
}
public Item(KeywordDescriptor descriptor, int index, FieldCondition[] fieldConditions)
{
this.descriptor = descriptor;
this.fieldConditions = fieldConditions;
this.index = index;
}
public void Add(KeywordDescriptor descriptor)
{
m_Items.Add(new Item(descriptor, null));
}
public Item(KeywordDescriptor descriptor, FieldCondition[] fieldConditions)
{
this.descriptor = descriptor;
this.fieldConditions = fieldConditions;
}
public DefineCollection Add(KeywordDescriptor descriptor, int index, FieldCondition[] fieldConditions)
{
m_Items.Add(new Item(descriptor, index, fieldConditions));
return(this);
}
public DefineCollection Add(KeywordDescriptor descriptor, int index)
{
m_Items.Add(new Item(descriptor, index, null));
return(this);
}
public KeywordCollection Add(KeywordDescriptor descriptor, FieldCondition[] fieldConditions)
{
m_Items.Add(new Item(descriptor, fieldConditions));
return(this);
}
public KeywordCollection Add(KeywordDescriptor descriptor, FieldCondition fieldCondition)
{
m_Items.Add(new Item(descriptor, new FieldCondition[] { fieldCondition }));
return(this);
}
public KeywordCollection Add(KeywordDescriptor descriptor)
{
m_Items.Add(new Item(descriptor, null));
return(this);
}