namespace GL {
namespace SL {
+StructOrganizer::StructOrganizer():
+ offset(-1)
+{ }
+
+void StructOrganizer::visit(StructDeclaration &strct)
+{
+ SetForScope<int> set_offset(offset, 0);
+ TraversingVisitor::visit(strct);
+}
+
+void StructOrganizer::visit(VariableDeclaration &var)
+{
+ if(offset>=0)
+ {
+ int *layout_offset = 0;
+ bool has_matrix_order = false;
+ if(var.layout)
+ {
+ vector<Layout::Qualifier> &qualifiers = var.layout->qualifiers;
+ for(vector<Layout::Qualifier>::iterator i=qualifiers.begin(); i!=qualifiers.end(); ++i)
+ {
+ if(i->name=="offset" && i->has_value)
+ {
+ layout_offset = &i->value;
+ if(i->value>=offset)
+ offset = i->value;
+ }
+ else if(i->name=="column_major" || i->name=="row_major")
+ has_matrix_order = true;
+ }
+ }
+
+ MemoryRequirementsCalculator::Result mem_reqs = MemoryRequirementsCalculator().apply(var);
+ offset += mem_reqs.alignment-1;
+ offset -= offset%mem_reqs.alignment;
+
+ if(layout_offset)
+ *layout_offset = offset;
+ else
+ {
+ if(!var.layout)
+ var.layout = new Layout;
+
+ var.layout->qualifiers.push_back(Layout::Qualifier("offset", offset));
+ }
+
+ if(!has_matrix_order)
+ {
+ const BasicTypeDeclaration *basic = dynamic_cast<const BasicTypeDeclaration *>(var.type_declaration);
+ while(basic && basic->kind==BasicTypeDeclaration::ARRAY)
+ basic = dynamic_cast<const BasicTypeDeclaration *>(basic->base_type);
+ if(basic && basic->kind==BasicTypeDeclaration::MATRIX)
+ var.layout->qualifiers.push_back(Layout::Qualifier("column_major"));
+ }
+
+ offset += mem_reqs.size;
+ }
+}
+
+
void LocationAllocator::apply(Module &module, const Features &features)
{
for(list<Stage>::iterator i=module.stages.begin(); i!=module.stages.end(); ++i)
if(!layout)
layout = new Layout;
- Layout::Qualifier qual;
- qual.name = name;
- qual.has_value = true;
- qual.value = value;
- layout->qualifiers.push_back(qual);
+ layout->qualifiers.push_back(Layout::Qualifier(name, value));
}
void LocationAllocator::visit(VariableDeclaration &var)