source_index(0),
source_line(1),
indent(0),
- parameter_list(false)
+ parameter_list(false),
+ omit_builtin(false)
{ }
const string &Formatter::apply(Stage &s)
{
stage = &s;
+ omit_builtin = true;
const Version &ver = s.required_features.glsl_version;
formatted += '\n';
}
+ if(s.required_features.arb_enhanced_layouts)
+ append("#extension GL_ARB_enhanced_layouts: require\n");
if(s.required_features.arb_explicit_attrib_location)
- append("#extension arb_explicit_attrib_location: require\n");
+ append("#extension GL_ARB_explicit_attrib_location: require\n");
+ if(s.required_features.arb_explicit_uniform_location)
+ append("#extension GL_ARB_explicit_uniform_location: require\n");
if(s.required_features.arb_gpu_shader5)
- append("#extension arb_gpu_shader5: require\n");
+ append("#extension GL_ARB_gpu_shader5: require\n");
+ if(s.required_features.arb_separate_shader_objects)
+ append("#extension GL_ARB_separate_shader_objects: require\n");
if(s.required_features.arb_uniform_buffer_object)
- append("#extension arb_uniform_buffer_object: require\n");
+ append("#extension GL_ARB_uniform_buffer_object: require\n");
if(s.required_features.ext_gpu_shader4)
- append("#extension ext_gpu_shader4: require\n");
+ append("#extension GL_EXT_gpu_shader4: require\n");
if(s.required_features.ext_texture_array)
- append("#extension ext_texture_array: require\n");
+ append("#extension GL_EXT_texture_array: require\n");
formatted += '\n';
s.content.visit(*this);
bool first = true;
for(NodeList<Statement>::iterator i=block.body.begin(); i!=block.body.end(); ++i)
{
- if((*i)->source<=BUILTIN_SOURCE)
+ if(omit_builtin && (*i)->source<=BUILTIN_SOURCE)
continue;
if(!first)
append('\n');
append(format("\n%s}", string(brace_indent*2, ' ')));
}
-void Formatter::visit(Literal &literal)
+void Formatter::visit_expression(Expression &expr, const Operator *outer_oper, bool on_rhs)
{
- append(literal.token);
+ unsigned outer_precedence = (outer_oper ? outer_oper->precedence : 20);
+ unsigned inner_precedence = (expr.oper ? expr.oper->precedence : 0);
+
+ bool needs_parentheses = (inner_precedence>=outer_precedence);
+
+ // Omit parentheses if the outer operator encloses this operand.
+ if(outer_oper && outer_oper->type==Operator::BINARY && outer_oper->token2[0] && on_rhs)
+ needs_parentheses = false;
+
+ if(expr.oper)
+ {
+ /* Omit parentheses if the inner expression's operator sits between the
+ expression and the outer operator. */
+ bool oper_on_left = expr.oper->type==Operator::PREFIX;
+ bool oper_on_right = expr.oper->type==Operator::POSTFIX || (expr.oper->type==Operator::BINARY && expr.oper->token2[0]);
+ if(expr.oper && ((oper_on_left && on_rhs) || (oper_on_right && !on_rhs)))
+ needs_parentheses = false;
+
+ // Omit parentheses if the operator's natural grouping works out.
+ if(expr.oper==outer_oper)
+ needs_parentheses = (expr.oper->assoc!=Operator::ASSOCIATIVE && on_rhs!=(expr.oper->assoc==Operator::RIGHT_TO_LEFT));
+ }
+
+ if(needs_parentheses)
+ append('(');
+ expr.visit(*this);
+ if(needs_parentheses)
+ append(')');
}
-void Formatter::visit(ParenthesizedExpression &parexpr)
+void Formatter::visit(Literal &literal)
{
- append('(');
- parexpr.expression->visit(*this);
- append(')');
+ append(literal.token);
}
void Formatter::visit(VariableReference &var)
void Formatter::visit(MemberAccess &memacc)
{
- memacc.left->visit(*this);
+ visit_expression(*memacc.left, memacc.oper, false);
append(format(".%s", memacc.member));
}
void Formatter::visit(Swizzle &swizzle)
{
- swizzle.left->visit(*this);
+ visit_expression(*swizzle.left, swizzle.oper, false);
append(format(".%s", swizzle.component_group));
}
{
if(unary.oper->type==Operator::PREFIX)
append(unary.oper->token);
- unary.expression->visit(*this);
+ visit_expression(*unary.expression, unary.oper, unary.oper->type==Operator::PREFIX);
if(unary.oper->type==Operator::POSTFIX)
append(unary.oper->token);
}
void Formatter::visit(BinaryExpression &binary)
{
- binary.left->visit(*this);
+ visit_expression(*binary.left, binary.oper, false);
append(binary.oper->token);
- binary.right->visit(*this);
- if(binary.oper->token[0]=='[')
- append(']');
+ visit_expression(*binary.right, binary.oper, true);
+ if(binary.oper->token2[0])
+ append(binary.oper->token2);
}
void Formatter::visit(Assignment &assign)
{
- assign.left->visit(*this);
+ visit_expression(*assign.left, assign.oper, false);
append(format(" %s ", assign.oper->token));
- assign.right->visit(*this);
+ visit_expression(*assign.right, assign.oper, true);
+}
+
+void Formatter::visit(TernaryExpression &ternary)
+{
+ visit_expression(*ternary.condition, ternary.oper, false);
+ append(ternary.oper->token);
+ visit_expression(*ternary.true_expr, ternary.oper, false);
+ if(ternary.oper->token2)
+ append(ternary.oper->token2);
+ visit_expression(*ternary.false_expr, ternary.oper, true);
}
void Formatter::visit(FunctionCall &call)
void Formatter::visit(InterfaceBlock &iface)
{
- append(format("%s %s\n", iface.interface, iface.name));
+ if(iface.layout)
+ {
+ iface.layout->visit(*this);
+ append(' ');
+ }
+ append(format("%s %s\n", iface.interface, iface.block_name));
if(iface.struct_declaration)
iface.struct_declaration->members.visit(*this);
if(!iface.instance_name.empty())