X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Foptimize.cpp;h=2215f8335cd06a23ea71e2c381cb1776362b81cd;hb=30465dd3b9f55ec42c4b19c3c2077eede7237a26;hp=208e17a39b49e6fe1fd92f10b31e65808e77068b;hpb=ab5f2e6f1ddd35f8f117460530d76c0ba0c9bc87;p=libs%2Fgl.git

diff --git a/source/glsl/optimize.cpp b/source/glsl/optimize.cpp
index 208e17a3..2215f833 100644
--- a/source/glsl/optimize.cpp
+++ b/source/glsl/optimize.cpp
@@ -14,7 +14,7 @@ InlineableFunctionLocator::InlineableFunctionLocator():
 void InlineableFunctionLocator::visit(FunctionCall &call)
 {
 	FunctionDeclaration *def = call.declaration;
-	if(def && def->definition!=def)
+	if(def)
 		def = def->definition;
 
 	if(def)
@@ -46,7 +46,7 @@ FunctionInliner::FunctionInliner():
 void FunctionInliner::apply(Stage &stage)
 {
 	inlineable = InlineableFunctionLocator().apply(stage);
-	visit(stage.content);
+	stage.content.visit(*this);
 }
 
 void FunctionInliner::visit_and_inline(RefPtr<Expression> &ptr)
@@ -95,7 +95,7 @@ void FunctionInliner::visit(FunctionCall &call)
 		visit_and_inline(*i);
 
 	FunctionDeclaration *def = call.declaration;
-	if(def && def->definition!=def)
+	if(def)
 		def = def->definition;
 
 	if(def && inlineable.count(def))
@@ -124,20 +124,17 @@ void FunctionInliner::visit(Return &ret)
 
 
 ConstantConditionEliminator::ConstantConditionEliminator():
-	scope_level(0),
-	current_block(0),
 	record_only(false)
 { }
 
 void ConstantConditionEliminator::apply(Stage &stage)
 {
-	visit(stage.content);
+	stage.content.visit(*this);
 	NodeRemover().apply(stage, nodes_to_remove);
 }
 
 void ConstantConditionEliminator::visit(Block &block)
 {
-	SetForScope<unsigned> set(scope_level, scope_level+1);
 	SetForScope<Block *> set_block(current_block, &block);
 	for(NodeList<Statement>::iterator i=block.body.begin(); i!=block.body.end(); ++i)
 	{
@@ -163,7 +160,13 @@ void ConstantConditionEliminator::visit(Assignment &assign)
 
 void ConstantConditionEliminator::visit(VariableDeclaration &var)
 {
-	if(var.constant || scope_level>1)
+	bool constant = var.constant;
+	if(constant && var.layout)
+	{
+		for(vector<Layout::Qualifier>::const_iterator i=var.layout->qualifiers.begin(); (constant && i!=var.layout->qualifiers.end()); ++i)
+			constant = (i->name!="constant_id");
+	}
+	if((constant || current_block->parent) && var.init_expression)
 		variable_values[&var] = var.init_expression.get();
 }
 
@@ -228,14 +231,13 @@ UnusedVariableRemover::UnusedVariableRemover():
 	aggregate(0),
 	assignment(0),
 	assignment_target(false),
-	assign_to_subscript(false),
-	global_scope(true)
+	assign_to_subscript(false)
 { }
 
 bool UnusedVariableRemover::apply(Stage &stage)
 {
 	variables.push_back(BlockVariableMap());
-	visit(stage.content);
+	stage.content.visit(*this);
 	BlockVariableMap &global_variables = variables.back();
 	for(BlockVariableMap::iterator i=global_variables.begin(); i!=global_variables.end(); ++i)
 	{
@@ -263,11 +265,16 @@ void UnusedVariableRemover::visit(VariableReference &var)
 	if(var.declaration && !assignment_target)
 	{
 		VariableInfo &var_info = variables.back()[var.declaration];
-		var_info.assignments.clear();
+		clear_assignments(var_info, false);
 		var_info.referenced = true;
 	}
 }
 
+void UnusedVariableRemover::visit(InterfaceBlockReference &iface)
+{
+	unused_nodes.erase(iface.declaration);
+}
+
 void UnusedVariableRemover::visit(MemberAccess &memacc)
 {
 	TraversingVisitor::visit(memacc);
@@ -358,12 +365,9 @@ void UnusedVariableRemover::visit(FunctionDeclaration &func)
 {
 	variables.push_back(BlockVariableMap());
 
-	{
-		SetForScope<bool> set(global_scope, false);
-		for(NodeArray<VariableDeclaration>::iterator i=func.parameters.begin(); i!=func.parameters.end(); ++i)
-			(*i)->visit(*this);
-		func.body.visit(*this);
-	}
+	for(NodeArray<VariableDeclaration>::iterator i=func.parameters.begin(); i!=func.parameters.end(); ++i)
+		(*i)->visit(*this);
+	func.body.visit(*this);
 
 	BlockVariableMap &block_variables = variables.back();
 	for(BlockVariableMap::iterator i=block_variables.begin(); i!=block_variables.end(); ++i)
@@ -443,7 +447,7 @@ void UnusedVariableRemover::visit(Iteration &iter)
 	BlockVariableMap &block_variables = variables.back();
 	for(BlockVariableMap::iterator i=block_variables.begin(); i!=block_variables.end(); ++i)
 		if(!i->second.local && i->second.referenced)
-			i->second.assignments.clear();
+			clear_assignments(i->second, false);
 
 	merge_down_variables();
 }
@@ -451,7 +455,7 @@ void UnusedVariableRemover::visit(Iteration &iter)
 
 bool UnusedFunctionRemover::apply(Stage &stage)
 {
-	visit(stage.content);
+	stage.content.visit(*this);
 	NodeRemover().apply(stage, unused_nodes);
 	return !unused_nodes.empty();
 }