X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Fsyntax.cpp;h=b224763248f26aa20f2d7e537ccbc6aa224acdb7;hb=fe7996a5985e8e7064004d2f42758d89ebf54b57;hp=cb50fee18b79538c126482594a023ea8f3864001;hpb=b89239e1d616f0c1d8e432b7df1eca149585cf5e;p=libs%2Fgl.git

diff --git a/source/glsl/syntax.cpp b/source/glsl/syntax.cpp
index cb50fee1..b2247632 100644
--- a/source/glsl/syntax.cpp
+++ b/source/glsl/syntax.cpp
@@ -138,14 +138,16 @@ void InterfaceBlockReference::visit(NodeVisitor &visitor)
 
 
 MemberAccess::MemberAccess():
-	declaration(0)
+	declaration(0),
+	index(-1)
 { }
 
 MemberAccess::MemberAccess(const MemberAccess &other):
 	Expression(other),
 	left(other.left),
 	member(other.member),
-	declaration(0)
+	declaration(0),
+	index(-1)
 { }
 
 void MemberAccess::visit(NodeVisitor &visitor)
@@ -369,7 +371,7 @@ InterfaceBlock::InterfaceBlock():
 InterfaceBlock::InterfaceBlock(const InterfaceBlock &other):
 	Statement(other),
 	interface(other.interface),
-	name(other.name),
+	block_name(other.block_name),
 	members(other.members),
 	instance_name(other.instance_name),
 	array(other.array),
@@ -465,34 +467,99 @@ Module::Module():
 { }
 
 
-string get_unused_variable_name(const Block &block, const string &base, const string &prefix_hint)
+string get_unused_variable_name(const Block &block, const string &base)
 {
 	string name = base;
 
-	bool prefixed = false;
 	unsigned number = 1;
-	unsigned size_without_number = name.size();
-	while(block.variables.count(name))
+	unsigned base_size = name.size();
+	while(1)
 	{
-		if(!prefixed && !prefix_hint.empty())
-		{
-			if(name.front()!='_')
-				name = "_"+name;
-			name = prefix_hint+name;
-			if(name.front()!='_')
-				name = "_"+name;
-			prefixed = true;
-			size_without_number = name.size();
-		}
+		bool unused = true;
+		for(const Block *b=█ (unused && b); b=b->parent)
+			unused = !b->variables.count(name);
+		if(unused)
+			return name;
+
+		name.erase(base_size);
+		name += format("_%d", number);
+		++number;
+	}
+}
+
+bool is_same_type(const TypeDeclaration &type1, const TypeDeclaration &type2)
+{
+	if(const BasicTypeDeclaration *basic1 = dynamic_cast<const BasicTypeDeclaration *>(&type1))
+	{
+		const BasicTypeDeclaration *basic2 = dynamic_cast<const BasicTypeDeclaration *>(&type2);
+		if(!basic2)
+			return false;
+
+		if(basic1->kind!=basic2->kind || basic1->size!=basic2->size)
+			return false;
+
+		if(basic1->base_type && basic2->base_type)
+			return is_same_type(*basic1->base_type, *basic2->base_type);
+		else
+			return (!basic1->base_type && !basic2->base_type);
+	}
+	else if(const ImageTypeDeclaration *image1 = dynamic_cast<const ImageTypeDeclaration *>(&type1))
+	{
+		const ImageTypeDeclaration *image2 = dynamic_cast<const ImageTypeDeclaration *>(&type2);
+		if(!image2)
+			return false;
+
+		if(image1->dimensions!=image2->dimensions || image1->array!=image2->array)
+			return false;
+		if(image1->sampled!=image2->sampled || image1->shadow!=image2->shadow)
+			return false;
+
+		if(image1->base_type && image2->base_type)
+			return is_same_type(*image1->base_type, *image2->base_type);
 		else
+			return (!image1->base_type && !image2->base_type);
+	}
+	else if(const StructDeclaration *strct1 = dynamic_cast<const StructDeclaration *>(&type1))
+	{
+		const StructDeclaration *strct2 = dynamic_cast<const StructDeclaration *>(&type2);
+		if(!strct2)
+			return false;
+
+		NodeList<Statement>::const_iterator i = strct1->members.body.begin();
+		NodeList<Statement>::const_iterator j = strct2->members.body.begin();
+		for(; (i!=strct1->members.body.end() && j!=strct2->members.body.end()); ++i, ++j)
 		{
-			name.erase(size_without_number);
-			name += format("_%d", number);
-			++number;
+			const VariableDeclaration *var1 = dynamic_cast<const VariableDeclaration *>(i->get());
+			const VariableDeclaration *var2 = dynamic_cast<const VariableDeclaration *>(j->get());
+			if(!var1 || !var1->type_declaration || !var2 || !var2->type_declaration)
+				return false;
+			if(!is_same_type(*var1->type_declaration, *var2->type_declaration))
+				return false;
+			if(var1->name!=var2->name || var1->array!=var2->array)
+				return false;
+			// TODO Compare array sizes
+			// TODO Compare layout qualifiers for interface block members
 		}
+
+		return (i==strct1->members.body.end() && j==strct2->members.body.end());
 	}
+	else
+		return false;
+}
+
+int get_layout_value(const Layout &layout, const string &name, int def_value)
+{
+	for(vector<Layout::Qualifier>::const_iterator i=layout.qualifiers.begin(); i!=layout.qualifiers.end(); ++i)
+		if(i->name==name)
+			return i->value;
+	return def_value;
+}
 
-	return name;
+void add_to_chain(Assignment::Target &target, Assignment::Target::ChainType type, unsigned index)
+{
+	if(target.chain_len<7)
+		target.chain[target.chain_len] = type | min<unsigned>(index, 0x3F);
+	++target.chain_len;
 }
 
 } // namespace SL