Function CreateGlobalsCB

shadercompiler/ParserUtils.cpp:953–1041

}

void CreateGlobalsCB( ParserState& state )
{
	ZoneScoped;

	auto root = state.GetTree();
	if( !root )
	{
		return;
	}
	SortProgramNodes( root );
	size_t varStart = root->GetChildrenCount();
	size_t varEnd = 0;
	for( size_t i = 0; i < root->GetChildrenCount(); ++i )
	{
		auto child = root->GetChild( i );
		if( !child )
		{
			continue;
		}
		if( child->GetNodeType() == NT_VAR_DECLARATION_LIST )
		{
			if( auto name = child->GetChildOrNull( 0 ) )
			{
				if( name->GetNodeType() == NT_CBUFFER )
				{
					continue;
				}
			}
			if( auto name = child->GetChildOrNull( 1 ) )
			{
				if( name->GetNodeType() == NT_CBUFFER )
				{
					continue;
				}
			}
			if( !GetRegisterType( child->GetType() ) )
			{
				varStart = std::min( varStart, i );
				varEnd = std::max( varEnd, i );
			}
		}
	}
	if( varStart <= varEnd )
	{
		ScannerToken token;
		token.fileLocation = root->GetLocation();
		token.intValue = 0;
		token.stringValue = MakeInlineString( "cbuffer" );
		token.type = OP_CBUFFER;
		ASTNode* cbuffer = new ASTNode( NT_CBUFFER, root->GetLocation(), root->GetScope(), &token );

		Symbol* cbufferName = state.GetSymbolTable().AddBufferSymbol( MakeInlineString( "Globals" ) );
		RegisterSpecifier reg;
		reg.registerNumber = 0;
		reg.registerType = 'b';
		reg.shaderProfile.start = nullptr;
		reg.shaderProfile.end = nullptr;
		reg.subComponent = -1;