+#include <msp/core/algorithm.h>
#include <msp/core/hash.h>
#include <msp/core/raii.h>
-#include <msp/strings/lexicalcast.h>
-#include "builtin.h"
#include "generate.h"
+#include "reflect.h"
using namespace std;
namespace GL {
namespace SL {
-void DeclarationCombiner::apply(Stage &stage)
+void ConstantIdAssigner::apply(Module &module, const Features &features)
{
- stage.content.visit(*this);
- NodeRemover().apply(stage, nodes_to_remove);
-}
-
-void DeclarationCombiner::visit(Block &block)
-{
- if(current_block)
- return;
+ for(Stage &s: module.stages)
+ s.content.visit(*this);
- TraversingVisitor::visit(block);
-}
-
-void DeclarationCombiner::visit(VariableDeclaration &var)
-{
- VariableDeclaration *&ptr = variables[var.name];
- if(ptr)
+ for(VariableDeclaration *v: auto_constants)
{
- ptr->type = var.type;
- if(var.init_expression)
- ptr->init_expression = var.init_expression;
- if(var.layout)
- {
- if(ptr->layout)
- {
- for(vector<Layout::Qualifier>::iterator i=var.layout->qualifiers.begin(); i!=var.layout->qualifiers.end(); ++i)
- {
- bool found = false;
- for(vector<Layout::Qualifier>::iterator j=ptr->layout->qualifiers.begin(); (!found && j!=ptr->layout->qualifiers.end()); ++j)
- if(j->name==i->name)
- {
- j->has_value = i->value;
- j->value = i->value;
- found = true;
- }
-
- if(!found)
- ptr->layout->qualifiers.push_back(*i);
- }
- }
- else
- ptr->layout = var.layout;
- }
- nodes_to_remove.insert(&var);
- }
- else
- ptr = &var;
-}
-
-
-ConstantSpecializer::ConstantSpecializer():
- values(0)
-{ }
-
-void ConstantSpecializer::apply(Stage &stage, const map<string, int> *v)
-{
- values = v;
- stage.content.visit(*this);
-}
-
-void ConstantSpecializer::visit(VariableDeclaration &var)
-{
- bool specializable = 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=="constant_id")
- {
- specializable = true;
- if(values)
- qualifiers.erase(i);
- else if(i->value==-1)
- i->value = hash32(var.name)&0x7FFFFFFF;
- break;
- }
-
- if(qualifiers.empty())
- var.layout = 0;
- }
-
- if(specializable && values)
- {
- map<string, int>::const_iterator i = values->find(var.name);
- if(i!=values->end())
- {
- RefPtr<Literal> literal = new Literal;
- if(var.type=="bool")
- literal->token = (i->second ? "true" : "false");
- else if(var.type=="int")
- literal->token = lexical_cast<string>(i->second);
- var.init_expression = literal;
- }
- }
-}
-
-
-void BlockHierarchyResolver::enter(Block &block)
-{
- block.parent = current_block;
-}
-
-
-VariableResolver::VariableResolver():
- stage(0),
- r_members(0),
- record_target(false),
- r_self_referencing(false),
- r_assignment_target(0)
-{ }
-
-void VariableResolver::apply(Stage &s)
-{
- stage = &s;
- s.types.clear();
- s.interface_blocks.clear();
- s.content.visit(*this);
-}
-
-void VariableResolver::enter(Block &block)
-{
- block.variables.clear();
-}
-
-void VariableResolver::visit(VariableReference &var)
-{
- var.declaration = 0;
- r_members = 0;
- /* Look for variable declarations in the block hierarchy first. Interface
- blocks are always defined in the top level so we can't accidentally skip
- one. */
- for(Block *block=current_block; (!var.declaration && block); block=block->parent)
- {
- map<string, VariableDeclaration *>::iterator i = block->variables.find(var.name);
- if(i!=block->variables.end())
- var.declaration = i->second;
- }
-
- if(var.declaration)
- {
- if(var.declaration->type_declaration)
- r_members = &var.declaration->type_declaration->members.variables;
- }
- else
- {
- const map<string, InterfaceBlock *> &blocks = stage->interface_blocks;
- map<string, InterfaceBlock *>::const_iterator i = blocks.find(var.name);
- if(i!=blocks.end() && i->second->instance_name==var.name)
- {
- /* The name refers to an interface block with an instance name rather
- than a variable. Prepare a new syntax tree node accordingly. */
- r_iface_ref = new InterfaceBlockReference;
- r_iface_ref->name = var.name;
- r_iface_ref->declaration = i->second;
- r_members = &i->second->members.variables;
- }
+ unsigned id;
+ auto j = existing_constants.find(v->name);
+ if(j!=existing_constants.end())
+ id = j->second;
else
{
- // Look for the variable in anonymous interface blocks.
- for(i=blocks.begin(); (!var.declaration && i!=blocks.end()); ++i)
- if(i->second->instance_name.empty())
- {
- map<string, VariableDeclaration *>::iterator j = i->second->members.variables.find(var.name);
- if(j!=i->second->members.variables.end())
- var.declaration = j->second;
- }
+ id = hash<32>(v->name)%features.constant_id_range;
+ while(used_ids.count(id))
+ id = (id+1)%features.constant_id_range;
}
- }
- if(record_target)
- {
- if(r_assignment_target)
- {
- /* More than one variable reference found in assignment target.
- Unable to determine what the primary target is. */
- record_target = false;
- r_assignment_target = 0;
- }
- else
- r_assignment_target = var.declaration;
- }
- else if(var.declaration && var.declaration==r_assignment_target)
- r_self_referencing = true;
-}
-
-void VariableResolver::visit(InterfaceBlockReference &iface)
-{
- iface.declaration = 0;
- for(Block *block=current_block; block; block=block->parent)
- {
- map<string, InterfaceBlock *>::iterator i = stage->interface_blocks.find(iface.name);
- if(i!=stage->interface_blocks.end())
- {
- iface.declaration = i->second;
- r_members = &i->second->members.variables;
- break;
- }
- }
-}
-
-void VariableResolver::visit(MemberAccess &memacc)
-{
- r_members = 0;
- r_iface_ref = 0;
- memacc.left->visit(*this);
-
- if(r_iface_ref)
- memacc.left = r_iface_ref;
- r_iface_ref = 0;
-
- memacc.declaration = 0;
- if(r_members)
- {
- map<string, VariableDeclaration *>::iterator i = r_members->find(memacc.member);
- if(i!=r_members->end())
- {
- memacc.declaration = i->second;
- if(i->second->type_declaration)
- r_members = &i->second->type_declaration->members.variables;
- }
- else
- r_members = 0;
- }
-}
-
-void VariableResolver::visit(UnaryExpression &unary)
-{
- TraversingVisitor::visit(unary);
- r_members = 0;
- r_iface_ref = 0;
-}
-
-void VariableResolver::visit(BinaryExpression &binary)
-{
- if(binary.oper->token[0]=='[')
- {
- {
- /* The subscript expression is not a part of the primary assignment
- target. */
- SetFlag set(record_target, false);
- binary.right->visit(*this);
- }
- r_members = 0;
- r_iface_ref = 0;
- binary.left->visit(*this);
- if(r_iface_ref)
- binary.left = r_iface_ref;
- }
- else
- {
- TraversingVisitor::visit(binary);
- r_members = 0;
- }
+ auto i = find_member(v->layout->qualifiers, string("constant_id"), &Layout::Qualifier::name);
+ if(i!=v->layout->qualifiers.end())
+ i->value = id;
- r_iface_ref = 0;
-}
-
-void VariableResolver::visit(Assignment &assign)
-{
- {
- SetFlag set(record_target);
- r_assignment_target = 0;
- assign.left->visit(*this);
- assign.target_declaration = r_assignment_target;
+ used_ids.insert(id);
+ existing_constants[v->name] = id;
}
-
- r_self_referencing = false;
- assign.right->visit(*this);
- assign.self_referencing = (r_self_referencing || assign.oper->token[0]!='=');
-
- r_members = 0;
- r_iface_ref = 0;
-}
-
-void VariableResolver::visit(FunctionCall &call)
-{
- TraversingVisitor::visit(call);
- r_members = 0;
- r_iface_ref = 0;
-}
-
-void VariableResolver::visit(StructDeclaration &strct)
-{
- TraversingVisitor::visit(strct);
- stage->types[strct.name] = &strct;
-}
-
-void VariableResolver::visit(VariableDeclaration &var)
-{
- map<string, StructDeclaration *>::iterator i = stage->types.find(var.type);
- if(i!=stage->types.end())
- var.type_declaration = i->second;
-
- if(!block_interface.empty() && var.interface.empty())
- var.interface = block_interface;
-
- TraversingVisitor::visit(var);
- current_block->variables[var.name] = &var;
}
-void VariableResolver::visit(InterfaceBlock &iface)
+void ConstantIdAssigner::visit(VariableDeclaration &var)
{
- /* Block names can't be used for any other identifiers so we can put them
- in the same map with instance names. */
- stage->interface_blocks[iface.name] = &iface;
- if(!iface.instance_name.empty())
- stage->interface_blocks[iface.instance_name] = &iface;
-
- SetForScope<string> set_iface(block_interface, iface.interface);
- TraversingVisitor::visit(iface);
-}
-
-
-void FunctionResolver::apply(Stage &s)
-{
- stage = &s;
- s.functions.clear();
- s.content.visit(*this);
-}
-
-void FunctionResolver::visit(FunctionCall &call)
-{
- map<string, FunctionDeclaration *>::iterator i = stage->functions.find(call.name);
- if(i!=stage->functions.end())
- call.declaration = i->second;
-
- TraversingVisitor::visit(call);
-}
-
-void FunctionResolver::visit(FunctionDeclaration &func)
-{
- FunctionDeclaration *&stage_decl = stage->functions[func.name];
- vector<FunctionDeclaration *> &decls = declarations[func.name];
- if(func.definition==&func)
+ if(var.layout)
{
- stage_decl = &func;
-
- // Set all previous declarations to use this definition.
- for(vector<FunctionDeclaration *>::iterator i=decls.begin(); i!=decls.end(); ++i)
+ auto i = find_member(var.layout->qualifiers, string("constant_id"), &Layout::Qualifier::name);
+ if(i!=var.layout->qualifiers.end() && i->has_value)
{
- (*i)->definition = func.definition;
- (*i)->body.body.clear();
+ if(i->value==-1)
+ auto_constants.push_back(&var);
+ else
+ {
+ existing_constants[var.name] = i->value;
+ used_ids.insert(i->value);
+ }
}
}
- else
- {
- func.definition = 0;
- if(!stage_decl)
- stage_decl = &func;
- else
- func.definition = stage_decl->definition;
- }
- decls.push_back(&func);
-
- TraversingVisitor::visit(func);
}
-InterfaceGenerator::InterfaceGenerator():
- stage(0),
- function_scope(false),
- iface_block(0),
- copy_block(false),
- iface_target_block(0)
-{ }
-
string InterfaceGenerator::get_out_prefix(Stage::Type type)
{
if(type==Stage::VERTEX)
void InterfaceGenerator::visit(Block &block)
{
SetForScope<Block *> set_block(current_block, &block);
- for(NodeList<Statement>::iterator i=block.body.begin(); i!=block.body.end(); ++i)
+ for(auto i=block.body.begin(); i!=block.body.end(); ++i)
{
assignment_insert_point = i;
if(&block==&stage->content)
if(stage->content.variables.count(name))
return 0;
+ if(stage->type==Stage::GEOMETRY && var.interface=="out" && var.array)
+ return 0;
+
VariableDeclaration* iface_var = new VariableDeclaration;
iface_var->sampling = var.sampling;
+ if(stage->type==Stage::FRAGMENT && iface=="in")
+ if(BasicTypeDeclaration *basic = dynamic_cast<BasicTypeDeclaration *>(var.type_declaration))
+ if(BasicTypeDeclaration *elem = get_element_type(*basic))
+ if(elem->kind==BasicTypeDeclaration::INT)
+ iface_var->interpolation = "flat";
iface_var->interface = iface;
iface_var->type = var.type;
iface_var->name = name;
- /* Geometry shader inputs are always arrays. But if we're bringing in an
- entire block, the array is on the block and not individual variables. */
- if(stage->type==Stage::GEOMETRY && !copy_block)
+ // Tessellation and geometry inputs may be arrayed.
+ if(stage->type==Stage::TESS_CONTROL)
+ // VS out -> TCS in: add | TCS in -> TCS out: unchanged | VS out -> TCS out: add
+ iface_var->array = (var.array || var.interface!="in");
+ else if(stage->type==Stage::TESS_EVAL)
+ // TCS out -> TES in: unchanged | TES in -> TES out: remove | TCS out -> TES out: remove
+ iface_var->array = (var.array && iface=="in");
+ else if(stage->type==Stage::GEOMETRY)
+ // VS/TES out -> GS in: add | GS in -> GS out: remove | VS/TES out -> GS out: unchanged
iface_var->array = ((var.array && var.interface!="in") || iface=="in");
else
iface_var->array = var.array;
var.linked_declaration = iface_var;
}
- iface_target_block->body.insert(iface_insert_point, iface_var);
- iface_target_block->variables[name] = iface_var;
-
- return iface_var;
-}
-
-InterfaceBlock *InterfaceGenerator::generate_interface(InterfaceBlock &out_block)
-{
- if(stage->interface_blocks.count(out_block.name))
- return 0;
+ if(var.block_declaration)
+ {
+ StructDeclaration *iface_type = var.block_declaration->clone();
+ iface_type->name = format("_%s_%s", iface, var.block_declaration->block_name);
+ iface_target_block->body.insert(iface_insert_point, iface_type);
- 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;
+ iface_var->type = iface_type->name;
+ if(name.empty())
+ iface_var->name = format("%s %s", iface, var.block_declaration->block_name);
- {
- 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);
+ stage->interface_blocks.insert(make_pair("in "+var.block_declaration->block_name, iface_var));
+ if(!name.empty())
+ stage->interface_blocks.insert(make_pair(name, iface_var));
}
- iface_target_block->body.insert(iface_insert_point, in_block);
- stage->interface_blocks[in_block->name] = in_block;
- if(!in_block->instance_name.empty())
- stage->interface_blocks[in_block->instance_name] = in_block;
-
- SetFlag set_scope(function_scope, false);
- SetForScope<Block *> set_block(current_block, &stage->content);
- in_block->visit(*this);
+ iface_target_block->body.insert(iface_insert_point, iface_var);
+ iface_target_block->variables.insert(make_pair(name, iface_var));
+ if(iface_target_block==&stage->content && iface=="in")
+ declared_inputs.push_back(iface_var);
- return in_block;
+ return iface_var;
}
ExpressionStatement &InterfaceGenerator::insert_assignment(const string &left, Expression *right)
{
Assignment *assign = new Assignment;
+
+ string::size_type dot = left.find('.');
VariableReference *ref = new VariableReference;
- ref->name = left;
+ ref->name = left.substr(0, dot);
assign->left = ref;
+
+ while(dot!=string::npos)
+ {
+ string::size_type start = dot+1;
+ dot = left.find('.', start);
+
+ MemberAccess *memacc = new MemberAccess;
+ memacc->left = assign->left;
+ memacc->member = left.substr(start, dot-start);
+ assign->left = memacc;
+ }
+
assign->oper = &Operator::get_operator("=", Operator::BINARY);
assign->right = right;
return;
const map<string, VariableDeclaration *> &prev_vars = stage->previous->content.variables;
- map<string, VariableDeclaration *>::const_iterator i = prev_vars.find(var.name);
+ auto i = prev_vars.find(var.name);
if(i==prev_vars.end() || i->second->interface!="out")
i = prev_vars.find(in_prefix+var.name);
if(i!=prev_vars.end() && i->second->interface=="out")
{
- generate_interface(*i->second, "in", i->second->name);
- var.name = i->second->name;
- return;
- }
-
- const map<string, InterfaceBlock *> &prev_blocks = stage->previous->interface_blocks;
- 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);
+ if(stage->type==Stage::GEOMETRY && i->second->array)
+ stage->diagnostics.push_back(Diagnostic(Diagnostic::WARN, var.source, var.line,
+ format("Can't access '%s' through automatic interface because it's an array", var.name)));
+ else
+ {
+ generate_interface(*i->second, "in", i->second->name);
+ var.name = i->second->name;
+ }
return;
}
- for(j=prev_blocks.begin(); j!=prev_blocks.end(); ++j)
- if(j->second->instance_name.empty())
+ for(const auto &kvp: stage->previous->interface_blocks)
+ if(kvp.second->name.find(' ')!=string::npos)
{
- i = j->second->members.variables.find(var.name);
- if(i!=j->second->members.variables.end())
+ const map<string, VariableDeclaration *> &iface_vars = kvp.second->block_declaration->members.variables;
+ i = iface_vars.find(var.name);
+ if(i!=iface_vars.end())
{
- generate_interface(*j->second);
+ generate_interface(*kvp.second, "in", string());
return;
}
}
void InterfaceGenerator::visit(VariableDeclaration &var)
{
- if(copy_block)
- {
- generate_interface(var, "in", var.name);
- return;
- }
-
- if(iface_block)
- {
- if(iface_block->linked_block)
- {
- // Link all variables to their counterparts in the 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")
{
/* For output 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))
+ VariableDeclaration *out_var = 0;
+ if(function_scope && (out_var=generate_interface(var, "out", var.name)))
{
+ out_var->source = var.source;
+ out_var->line = var.line;
nodes_to_remove.insert(&var);
if(var.init_expression)
{
}
}
}
- else if(var.interface=="in")
+ else if(var.interface=="in" && current_block==&stage->content)
{
+ if(var.name.compare(0, 3, "gl_"))
+ declared_inputs.push_back(&var);
+
/* Try to link input variables in global scope with output variables from
previous stage. */
- if(current_block==&stage->content && !var.linked_declaration && stage->previous)
+ if(!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);
- if(i!=prev_vars.end() && i->second->interface=="out")
+ const map<string, VariableDeclaration *> *prev_vars;
+ string name;
+ // Blocks are linked by their block name, not instance name
+ if(var.block_declaration)
{
- var.linked_declaration = i->second;
- i->second->linked_declaration = &var;
+ prev_vars = &stage->previous->interface_blocks;
+ name = "out "+var.block_declaration->block_name;
+ }
+ else
+ {
+ prev_vars = &stage->previous->content.variables;
+ name = var.name;
}
- }
- }
-
- TraversingVisitor::visit(var);
-}
-void InterfaceGenerator::visit(InterfaceBlock &iface)
-{
- if(iface.interface=="in")
- {
- /* Try to link input blocks with output blocks sharing the same block
- name from previous stage. */
- if(!iface.linked_block && stage->previous)
- {
- const map<string, InterfaceBlock *> &prev_blocks = stage->previous->interface_blocks;
- 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)
+ auto i = prev_vars->find(name);
+ if(i!=prev_vars->end() && i->second->interface=="out")
{
- iface.linked_block = i->second;
- i->second->linked_block = &iface;
+ var.linked_declaration = i->second;
+ i->second->linked_declaration = &var;
}
}
}
- SetForScope<InterfaceBlock *> set_iface(iface_block, &iface);
- TraversingVisitor::visit(iface);
+ TraversingVisitor::visit(var);
}
void InterfaceGenerator::visit(FunctionDeclaration &func)
void InterfaceGenerator::visit(Passthrough &pass)
{
- vector<VariableDeclaration *> pass_vars;
-
- // Pass through all input variables of this stage.
- for(map<string, VariableDeclaration *>::const_iterator i=stage->content.variables.begin(); i!=stage->content.variables.end(); ++i)
- if(i->second->interface=="in")
- pass_vars.push_back(i->second);
+ // Pass through all input variables declared so far.
+ vector<VariableDeclaration *> pass_vars = declared_inputs;
if(stage->previous)
{
- const map<string, VariableDeclaration *> &prev_vars = stage->previous->content.variables;
- for(map<string, VariableDeclaration *>::const_iterator i=prev_vars.begin(); i!=prev_vars.end(); ++i)
+ for(const auto &kvp: stage->previous->content.variables)
{
- if(i->second->interface!="out")
+ if(kvp.second->interface!="out")
continue;
/* Pass through output variables from the previous stage, but only
those which are not already linked to an input here. */
- if(!i->second->linked_declaration && generate_interface(*i->second, "in", i->second->name))
- pass_vars.push_back(i->second);
+ if(!kvp.second->linked_declaration && generate_interface(*kvp.second, "in", kvp.second->name))
+ pass_vars.push_back(kvp.second);
}
}
{
/* Special case for geometry shader: copy gl_Position from input to
output. */
- InterfaceBlockReference *ref = new InterfaceBlockReference;
+ VariableReference *ref = new VariableReference;
ref->name = "gl_in";
BinaryExpression *subscript = new BinaryExpression;
memacc->left = subscript;
memacc->member = "gl_Position";
- insert_assignment("gl_Position", memacc);
+ insert_assignment("out gl_PerVertex.gl_Position", memacc);
}
- for(vector<VariableDeclaration *>::const_iterator i=pass_vars.begin(); i!=pass_vars.end(); ++i)
+ for(VariableDeclaration *v: pass_vars)
{
- string out_name = change_prefix((*i)->name, out_prefix);
- generate_interface(**i, "out", out_name);
+ string out_name = change_prefix(v->name, out_prefix);
+ generate_interface(*v, "out", out_name);
VariableReference *ref = new VariableReference;
- ref->name = (*i)->name;
+ ref->name = v->name;
if(pass.subscript)
{
BinaryExpression *subscript = new BinaryExpression;
nodes_to_remove.insert(&pass);
}
+
+void LayoutDefaulter::apply(Stage &stage)
+{
+ if(stage.type==Stage::TESS_EVAL)
+ {
+ stage.content.visit(*this);
+ if((need_winding || need_spacing) && in_iface)
+ {
+ if(need_winding)
+ in_iface->layout.qualifiers.emplace_back("ccw");
+ if(need_spacing)
+ in_iface->layout.qualifiers.emplace_back("equal_spacing");
+ }
+ }
+}
+
+void LayoutDefaulter::visit(InterfaceLayout &iface)
+{
+ if(iface.interface=="in")
+ {
+ if(!in_iface)
+ in_iface = &iface;
+ for(const Layout::Qualifier &q: iface.layout.qualifiers)
+ {
+ if(q.name=="cw" || q.name=="ccw")
+ need_winding = false;
+ else if(q.name=="equal_spacing" || q.name=="fractional_even_spacing" || q.name=="fractional_odd_spacing")
+ need_spacing = false;
+ }
+ }
+}
+
+
+void ArraySizer::apply(Stage &stage)
+{
+ stage.content.visit(*this);
+ for(const auto &kvp: max_indices)
+ if(kvp.first->array && !kvp.first->array_size)
+ {
+ int size = 0;
+ if(stage.type==Stage::GEOMETRY && kvp.first->interface=="in")
+ size = input_size;
+ else if(kvp.second>=0)
+ size = kvp.second+1;
+ if(!size && !kvp.first->name.compare(0, 3, "gl_"))
+ size = 1;
+
+ if(size>0)
+ {
+ Literal *literal_size = new Literal;
+ literal_size->token = lexical_cast<string>(size);
+ literal_size->value = size;
+ kvp.first->array_size = literal_size;
+ }
+ }
+}
+
+void ArraySizer::visit(VariableReference &var)
+{
+ r_declaration = var.declaration;
+}
+
+void ArraySizer::visit(MemberAccess &memacc)
+{
+ r_declaration = 0;
+ TraversingVisitor::visit(memacc);
+ VariableDeclaration *member_declaration = 0;
+ if(r_declaration)
+ if(StructDeclaration *strct = dynamic_cast<StructDeclaration *>(r_declaration->type_declaration))
+ {
+ auto i = strct->members.variables.find(memacc.member);
+ if(i!=strct->members.variables.end())
+ member_declaration = i->second;
+ }
+ r_declaration = member_declaration;
+}
+
+void ArraySizer::visit(Swizzle &swizzle)
+{
+ TraversingVisitor::visit(swizzle);
+ r_declaration = 0;
+}
+
+void ArraySizer::visit(UnaryExpression &unary)
+{
+ TraversingVisitor::visit(unary);
+ r_declaration = 0;
+}
+
+void ArraySizer::visit(BinaryExpression &binary)
+{
+ if(binary.oper->token[0]=='[')
+ if(const Literal *literal_index = dynamic_cast<const Literal *>(binary.right.get()))
+ if(literal_index->value.check_type<int>())
+ {
+ r_declaration = 0;
+ binary.left->visit(*this);
+ if(r_declaration)
+ {
+ max_indices[r_declaration] = literal_index->value.value<int>();
+ return;
+ }
+ }
+
+ TraversingVisitor::visit(binary);
+}
+
+void ArraySizer::visit(TernaryExpression &ternary)
+{
+ TraversingVisitor::visit(ternary);
+ r_declaration = 0;
+}
+
+void ArraySizer::visit(FunctionCall &call)
+{
+ TraversingVisitor::visit(call);
+ r_declaration = 0;
+}
+
+void ArraySizer::visit(InterfaceLayout &layout)
+{
+ if(layout.interface=="in")
+ {
+ for(const Layout::Qualifier &q: layout.layout.qualifiers)
+ {
+ if(q.name=="points")
+ input_size = 1;
+ else if(q.name=="lines")
+ input_size = 2;
+ else if(q.name=="triangles")
+ input_size = 3;
+ else if(q.name=="lines_adjacency")
+ input_size = 4;
+ else if(q.name=="triangles_adjacency")
+ input_size = 6;
+ }
+ }
+}
+
+void ArraySizer::visit(VariableDeclaration &var)
+{
+ if(var.array && !var.array_size)
+ max_indices[&var] = 0;
+}
+
} // namespace SL
} // namespace GL
} // namespace Msp
projects / libs / gl.git / blobdiff