void BlockResolver::visit(InterfaceBlock &iface)
{
- current_block->interfaces.insert(&iface);
+ /* Block names can't be used for any other identifiers so we can put them
+ in the same map with instance names. */
+ current_block->interfaces[iface.name] = &iface;
+ if(!iface.instance_name.empty())
+ current_block->interfaces[iface.instance_name] = &iface;
TraversingVisitor::visit(iface);
}
VariableResolver::VariableResolver():
+ builtins(0),
+ members(0),
record_target(false),
assignment_target(0),
self_referencing(false)
void VariableResolver::visit(VariableReference &var)
{
var.declaration = 0;
- type = 0;
+ members = 0;
for(Block *block=current_block; block; block=next_block(*block))
{
map<string, VariableDeclaration *>::iterator i = block->variables.find(var.name);
var.declaration = i->second;
else
{
- const set<InterfaceBlock *> &ifaces = block->interfaces;
- for(set<InterfaceBlock *>::const_iterator j=ifaces.begin(); (!var.declaration && j!=ifaces.end()); ++j)
- {
- i = (*j)->members.variables.find(var.name);
- if(i!=(*j)->members.variables.end())
- var.declaration = i->second;
- }
+ const map<string, InterfaceBlock *> &ifaces = block->interfaces;
+ for(map<string, InterfaceBlock *>::const_iterator j=ifaces.begin(); (!var.declaration && j!=ifaces.end()); ++j)
+ if(j->second->instance_name.empty())
+ {
+ i = j->second->members.variables.find(var.name);
+ if(i!=j->second->members.variables.end())
+ var.declaration = i->second;
+ }
}
if(var.declaration)
{
- type = var.declaration->type_declaration;
+ if(var.declaration->type_declaration)
+ members = &var.declaration->type_declaration->members.variables;
+ break;
+ }
+
+ map<string, InterfaceBlock *>::iterator j = block->interfaces.find(var.name);
+ if(j!=block->interfaces.end() && j->second->instance_name==var.name)
+ {
+ iface_ref = new InterfaceBlockReference;
+ iface_ref->name = var.name;
+ iface_ref->declaration = j->second;
+ members = &j->second->members.variables;
break;
}
}
self_referencing = true;
}
+void VariableResolver::visit(InterfaceBlockReference &iface)
+{
+ iface.declaration = 0;
+ for(Block *block=current_block; block; block=next_block(*block))
+ {
+ map<string, InterfaceBlock *>::iterator j = block->interfaces.find(iface.name);
+ if(j!=block->interfaces.end())
+ {
+ iface.declaration = j->second;
+ members = &j->second->members.variables;
+ break;
+ }
+ }
+}
+
void VariableResolver::visit(MemberAccess &memacc)
{
- type = 0;
- TraversingVisitor::visit(memacc);
+ members = 0;
+ iface_ref = 0;
+ memacc.left->visit(*this);
+
+ if(iface_ref)
+ memacc.left = iface_ref;
+ iface_ref = 0;
+
memacc.declaration = 0;
- if(type)
+ if(members)
{
- map<string, VariableDeclaration *>::iterator i = type->members.variables.find(memacc.member);
- if(i!=type->members.variables.end())
+ map<string, VariableDeclaration *>::iterator i = members->find(memacc.member);
+ if(i!=members->end())
{
memacc.declaration = i->second;
- type = i->second->type_declaration;
+ if(i->second->type_declaration)
+ members = &i->second->type_declaration->members.variables;
}
else
- type = 0;
+ members = 0;
}
}
SetForScope<bool> set(record_target, false);
binary.right->visit(*this);
}
- type = 0;
+ members = 0;
+ iface_ref = 0;
binary.left->visit(*this);
+ if(iface_ref)
+ binary.left = iface_ref;
+ iface_ref = 0;
}
else
{
TraversingVisitor::visit(binary);
- type = 0;
+ members = 0;
}
}
InterfaceGenerator::InterfaceGenerator():
- stage(0)
+ stage(0),
+ function_scope(false),
+ iface_block(0),
+ copy_block(false),
+ iface_target_block(0)
{ }
string InterfaceGenerator::get_out_prefix(Stage::Type type)
void InterfaceGenerator::apply(Stage &s)
{
stage = &s;
+ iface_target_block = &stage->content;
if(stage->previous)
in_prefix = get_out_prefix(stage->previous->type);
out_prefix = get_out_prefix(stage->type);
iface_var->type = var.type;
iface_var->type_declaration = var.type_declaration;
iface_var->name = name;
- if(stage->type==Stage::GEOMETRY)
+ if(stage->type==Stage::GEOMETRY && !copy_block)
iface_var->array = ((var.array && var.interface!="in") || iface=="in");
else
iface_var->array = var.array;
iface_var->linked_declaration = &var;
var.linked_declaration = iface_var;
}
- stage->content.body.insert(iface_insert_point, iface_var);
- stage->content.variables[name] = iface_var;
+
+ iface_target_block->body.insert(iface_insert_point, iface_var);
+ iface_target_block->variables[name] = iface_var;
+
+ return true;
+}
+
+bool InterfaceGenerator::generate_interface(InterfaceBlock &out_block)
+{
+ if(stage->content.interfaces.count(out_block.name))
+ return false;
+
+ InterfaceBlock *in_block = new InterfaceBlock;
+ in_block->interface = "in";
+ in_block->name = out_block.name;
+ in_block->instance_name = out_block.instance_name;
+ if(stage->type==Stage::GEOMETRY)
+ in_block->array = true;
+ else
+ in_block->array = out_block.array;
+ in_block->linked_block = &out_block;
+ out_block.linked_block = in_block;
+
+ {
+ SetFlag set_copy(copy_block, true);
+ SetForScope<Block *> set_target(iface_target_block, &in_block->members);
+ SetForScope<NodeList<Statement>::iterator> set_ins_pt(iface_insert_point, in_block->members.body.end());
+ out_block.members.visit(*this);
+ }
+
+ iface_target_block->body.insert(iface_insert_point, in_block);
+ iface_target_block->interfaces[in_block->name] = in_block;
+ if(!in_block->instance_name.empty())
+ stage->content.interfaces[in_block->instance_name] = in_block;
+
+ SetFlag set_scope(function_scope, false);
+ SetForScope<Block *> set_block(current_block, &stage->content);
+ in_block->visit(*this);
return true;
}
{
generate_interface(*i->second, "in", i->second->name);
var.name = i->second->name;
+ return;
+ }
+
+ const map<string, InterfaceBlock *> &prev_blocks = stage->previous->content.interfaces;
+ map<string, InterfaceBlock *>::const_iterator j = prev_blocks.find(var.name);
+ if(j!=prev_blocks.end() && j->second->interface=="out" && j->second->instance_name==var.name)
+ {
+ generate_interface(*j->second);
+ return;
}
+
+ for(j=prev_blocks.begin(); j!=prev_blocks.end(); ++j)
+ if(j->second->instance_name.empty())
+ {
+ i = j->second->members.variables.find(var.name);
+ if(i!=j->second->members.variables.end())
+ {
+ generate_interface(*j->second);
+ return;
+ }
+ }
}
void InterfaceGenerator::visit(VariableDeclaration &var)
{
+ if(copy_block)
+ {
+ generate_interface(var, "in", var.name);
+ return;
+ }
+
+ if(iface_block)
+ {
+ if(iface_block->linked_block)
+ {
+ const map<string, VariableDeclaration *> &linked_vars = iface_block->linked_block->members.variables;
+ map<string, VariableDeclaration *>::const_iterator i = linked_vars.find(var.name);
+ if(i!=linked_vars.end())
+ var.linked_declaration = i->second;
+ }
+ return;
+ }
+
if(var.interface=="out")
{
- if(current_block!=&stage->content && generate_interface(var, "out", change_prefix(var.name, string())))
+ /* For out variables in function scope, generate a global interface and
+ replace the local declaration with an assignment. */
+ if(function_scope && generate_interface(var, "out", var.name))
{
nodes_to_remove.insert(&var);
if(var.init_expression)
}
else if(var.interface=="in")
{
- if(!var.linked_declaration && stage->previous)
+ /* Try to link in variables in global scope with out variables from
+ previous stage */
+ if(current_block==&stage->content && !var.linked_declaration && stage->previous)
{
const map<string, VariableDeclaration *> &prev_vars = stage->previous->content.variables;
map<string, VariableDeclaration *>::const_iterator i = prev_vars.find(var.name);
TraversingVisitor::visit(var);
}
+void InterfaceGenerator::visit(InterfaceBlock &iface)
+{
+ if(iface.interface=="in")
+ {
+ if(!iface.linked_block && stage->previous)
+ {
+ const map<string, InterfaceBlock *> &prev_blocks = stage->previous->content.interfaces;
+ map<string, InterfaceBlock *>::const_iterator i = prev_blocks.find(iface.name);
+ if(i!=prev_blocks.end() && i->second->interface=="out" && i->second->name==iface.name)
+ {
+ iface.linked_block = i->second;
+ i->second->linked_block = &iface;
+ }
+ }
+ }
+
+ SetForScope<InterfaceBlock *> set_iface(iface_block, &iface);
+ TraversingVisitor::visit(iface);
+}
+
void InterfaceGenerator::visit(FunctionDeclaration &func)
{
+ SetFlag set_scope(function_scope, true);
// Skip parameters because they're not useful here
func.body.visit(*this);
}
if(stage->type==Stage::GEOMETRY)
{
- VariableReference *ref = new VariableReference;
+ InterfaceBlockReference *ref = new InterfaceBlockReference;
ref->name = "gl_in";
BinaryExpression *subscript = new BinaryExpression;