///// <summary>
///// Gets the corresponding interface slot for a variable that represents an interface pointer.
///// </summary>
//public List<uint> InterfaceSlots { get; private set; }
public static ShaderVariable Parse(BytecodeReader reader,
BytecodeReader variableReader, ShaderVersion target,
bool isFirst)
{
uint nameOffset = variableReader.ReadUInt32();
var nameReader = reader.CopyAtOffset((int)nameOffset);
var startOffset = variableReader.ReadUInt32();
uint size = variableReader.ReadUInt32();
var flags = (ShaderVariableFlags)variableReader.ReadUInt32();
var typeOffset = variableReader.ReadUInt32();
var typeReader = reader.CopyAtOffset((int)typeOffset);
var shaderType = ShaderType.Parse(reader, typeReader, target, 2, isFirst, startOffset);
var defaultValueOffset = variableReader.ReadUInt32();
List <Number> defaultValue = null;
if (defaultValueOffset != 0)
{
defaultValue = new List <Number>();
var defaultValueReader = reader.CopyAtOffset((int)defaultValueOffset);
if (size % 4 != 0)
{
throw new ParseException("Can only deal with 4-byte default values at the moment.");
}
for (int i = 0; i < size; i += 4)
{
defaultValue.Add(new Number(defaultValueReader.ReadBytes(4)));
}
}
var name = nameReader.ReadString();
var result = new ShaderVariable
{
DefaultValue = defaultValue,
Member = new ShaderTypeMember(0)
{
Name = name,
Offset = startOffset,
Type = shaderType
},
BaseType = name,
Size = size,
Flags = flags
};
if (target.MajorVersion >= 5)
{
result.StartTexture = variableReader.ReadInt32();
result.TextureSize = variableReader.ReadInt32();
result.StartSampler = variableReader.ReadInt32();
result.SamplerSize = variableReader.ReadInt32();
}
return(result);
}
public static ShaderTypeMember Parse(BytecodeReader reader, BytecodeReader memberReader, ShaderVersion target,
int indent, bool isFirst, uint parentOffset)
{
var nameOffset = memberReader.ReadUInt32();
var nameReader = reader.CopyAtOffset((int)nameOffset);
var name = nameReader.ReadString();
var memberTypeOffset = memberReader.ReadUInt32();
var offset = memberReader.ReadUInt32();
var memberTypeReader = reader.CopyAtOffset((int)memberTypeOffset);
var memberType = ShaderType.Parse(reader, memberTypeReader, target, indent, isFirst, parentOffset + offset);
return(new ShaderTypeMember(parentOffset)
{
Name = name,
Type = memberType,
Offset = offset
});
}
public static ShaderType Parse(BytecodeReader reader, BytecodeReader typeReader, ShaderVersion target,
int indent, bool isFirst, uint parentOffset)
{
var result = new ShaderType(indent, isFirst)
{
VariableClass = (ShaderVariableClass)typeReader.ReadUInt16(),
VariableType = (ShaderVariableType)typeReader.ReadUInt16(),
Rows = typeReader.ReadUInt16(),
Columns = typeReader.ReadUInt16(),
ElementCount = typeReader.ReadUInt16()
};
var memberCount = typeReader.ReadUInt16();
var memberOffset = typeReader.ReadUInt32();
if (target.MajorVersion >= 5)
{
var subTypeOffset = typeReader.ReadUInt32(); // Guessing
if (subTypeOffset != 0)
{
var parentTypeReader = reader.CopyAtOffset((int)subTypeOffset);
result.SubType = ShaderType.Parse(reader, parentTypeReader, target,
indent + 4, true, parentOffset);
Debug.Assert(
result.SubType.VariableClass == ShaderVariableClass.Vector ||
result.SubType.VariableClass == ShaderVariableClass.InterfaceClass);
}
var baseClassOffset = typeReader.ReadUInt32();
if (baseClassOffset != 0)
{
var baseClassReader = reader.CopyAtOffset((int)baseClassOffset);
result.BaseClass = ShaderType.Parse(reader, baseClassReader, target,
indent + 4, true, parentOffset);
Debug.Assert(
result.BaseClass.VariableClass == ShaderVariableClass.Scalar ||
result.BaseClass.VariableClass == ShaderVariableClass.Struct);
}
var interfaceCount = typeReader.ReadUInt32();
var interfaceSectionOffset = typeReader.ReadUInt32();
if (interfaceSectionOffset != 0)
{
var interfaceSectionReader = reader.CopyAtOffset((int)interfaceSectionOffset);
for (int i = 0; i < interfaceCount; i++)
{
var interfaceTypeOffset = interfaceSectionReader.ReadUInt32();
var interfaceReader = reader.CopyAtOffset((int)interfaceTypeOffset);
result.Interfaces.Add(ShaderType.Parse(reader, interfaceReader, target,
indent + 4, i == 0, parentOffset));
}
}
var parentNameOffset = typeReader.ReadUInt32();
if (parentNameOffset > 0)
{
var parentNameReader = reader.CopyAtOffset((int)parentNameOffset);
result.BaseTypeName = parentNameReader.ReadString();
}
}
if (memberCount > 0)
{
var memberReader = reader.CopyAtOffset((int)memberOffset);
for (int i = 0; i < memberCount; i++)
{
result.Members.Add(ShaderTypeMember.Parse(reader, memberReader, target, indent + 4, i == 0,
parentOffset));
}
}
if (target.ProgramType == ProgramType.LibraryShader && target.MajorVersion == 4)
{
var unk1 = typeReader.ReadUInt32();
var unk2 = typeReader.ReadUInt32();
var unk3 = typeReader.ReadUInt32();
var unk4 = typeReader.ReadUInt32();
var typeNameOffset = typeReader.ReadUInt32();
var typeNameReader = reader.CopyAtOffset((int)typeNameOffset);
typeNameReader.ReadString();
Debug.Assert(unk1 == 0, $"ShaderType.Unk1={unk1}");
Debug.Assert(unk2 == 0, $"ShaderType.Unk2={unk2}");
Debug.Assert(unk3 == 0, $"ShaderType.Unk3={unk3}");
Debug.Assert(unk4 == 0, $"ShaderType.Unk4={unk4}");
}
return(result);
}
