X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Ffinalize.cpp;h=27760afeabb4770d9d79028c52019ace496e9d82;hb=37e2139a0c5721ea7e0104b5afc4cd97ad2dcb6c;hp=4068037e919e81b5cc514d12584bec7df8088360;hpb=38712d8ecc57d043a2419ffbaeeb57f7a6586f14;p=libs%2Fgl.git

diff --git a/source/glsl/finalize.cpp b/source/glsl/finalize.cpp
index 4068037e..27760afe 100644
--- a/source/glsl/finalize.cpp
+++ b/source/glsl/finalize.cpp
@@ -221,15 +221,25 @@ void LocationAllocator::visit(InterfaceBlock &iface)
 
 	if(iface.interface=="uniform")
 	{
-		int bind_point = (iface.layout ? get_layout_value(*iface.layout, "binding") : -1);
+		bool push_constant = false;
+		if(iface.layout)
+		{
+			auto i = find_member(iface.layout->qualifiers, string("push_constant"), &Layout::Qualifier::name);
+			push_constant = (i!=iface.layout->qualifiers.end());
+		}
 
-		if(bind_point>=0)
+		if(!push_constant)
 		{
-			used_bindings[0].insert(bind_point);
-			uniforms[iface.block_name].bind_point = bind_point;
+			int bind_point = (iface.layout ? get_layout_value(*iface.layout, "binding") : -1);
+
+			if(bind_point>=0)
+			{
+				used_bindings[0].insert(bind_point);
+				uniforms[iface.block_name].bind_point = bind_point;
+			}
+			else
+				unbound_blocks.push_back(&iface);
 		}
-		else
-			unbound_blocks.push_back(&iface);
 	}
 }
 
@@ -300,7 +310,7 @@ void PrecisionConverter::visit(VariableDeclaration &var)
 }
 
 
-void LegacyConverter::apply(Stage &s, const Features &feat)
+void FeatureConverter::apply(Stage &s, const Features &feat)
 {
 	stage = &s;
 	features = feat;
@@ -316,7 +326,7 @@ void LegacyConverter::apply(Stage &s, const Features &feat)
 		unsupported(format("Stage %s is not supported", Stage::get_stage_name(s.type)));
 }
 
-void LegacyConverter::unsupported(const string &reason)
+void FeatureConverter::unsupported(const string &reason)
 {
 	Diagnostic diagnostic;
 	diagnostic.severity = Diagnostic::ERR;
@@ -326,7 +336,7 @@ void LegacyConverter::unsupported(const string &reason)
 	stage->diagnostics.push_back(diagnostic);
 }
 
-void LegacyConverter::visit(Block &block)
+void FeatureConverter::visit(Block &block)
 {
 	for(auto i=block.body.begin(); i!=block.body.end(); ++i)
 	{
@@ -336,7 +346,16 @@ void LegacyConverter::visit(Block &block)
 	}
 }
 
-bool LegacyConverter::check_version(const Version &feature_version) const
+void FeatureConverter::visit(RefPtr<Expression> &expr)
+{
+	r_replaced_reference = 0;
+	expr->visit(*this);
+	if(r_replaced_reference)
+		expr = r_replaced_reference;
+	r_replaced_reference = 0;
+}
+
+bool FeatureConverter::check_version(const Version &feature_version) const
 {
 	if(features.glsl_version<feature_version)
 		return false;
@@ -346,7 +365,7 @@ bool LegacyConverter::check_version(const Version &feature_version) const
 	return true;
 }
 
-bool LegacyConverter::check_extension(bool Features::*extension) const
+bool FeatureConverter::check_extension(bool Features::*extension) const
 {
 	if(!(features.*extension))
 		return false;
@@ -356,7 +375,7 @@ bool LegacyConverter::check_extension(bool Features::*extension) const
 	return true;
 }
 
-bool LegacyConverter::supports_stage(Stage::Type st) const
+bool FeatureConverter::supports_stage(Stage::Type st) const
 {
 	if(st==Stage::GEOMETRY)
 	{
@@ -369,7 +388,7 @@ bool LegacyConverter::supports_stage(Stage::Type st) const
 		return true;
 }
 
-bool LegacyConverter::supports_unified_interface_syntax() const
+bool FeatureConverter::supports_unified_interface_syntax() const
 {
 	if(features.target_api==OPENGL_ES)
 		return check_version(Version(3, 0));
@@ -377,7 +396,7 @@ bool LegacyConverter::supports_unified_interface_syntax() const
 		return check_version(Version(1, 30));
 }
 
-void LegacyConverter::visit(VariableReference &var)
+void FeatureConverter::visit(VariableReference &var)
 {
 	if(var.declaration==frag_out && !supports_unified_interface_syntax())
 	{
@@ -386,14 +405,31 @@ void LegacyConverter::visit(VariableReference &var)
 	}
 }
 
-void LegacyConverter::visit(Assignment &assign)
+void FeatureConverter::visit(InterfaceBlockReference &iface)
+{
+	r_flattened_interface = nodes_to_remove.count(iface.declaration);
+}
+
+void FeatureConverter::visit(MemberAccess &memacc)
+{
+	r_flattened_interface = false;
+	visit(memacc.left);
+	if(r_flattened_interface)
+	{
+		VariableReference *var = new VariableReference;
+		var->name = memacc.member;
+		r_replaced_reference = var;
+	}
+}
+
+void FeatureConverter::visit(Assignment &assign)
 {
 	TraversingVisitor::visit(assign);
 	if(assign.target.declaration==frag_out && !supports_unified_interface_syntax())
 		assign.target.declaration = 0;
 }
 
-bool LegacyConverter::supports_unified_sampling_functions() const
+bool FeatureConverter::supports_unified_sampling_functions() const
 {
 	if(features.target_api==OPENGL_ES)
 		return check_version(Version(3, 0));
@@ -401,7 +437,7 @@ bool LegacyConverter::supports_unified_sampling_functions() const
 		return check_version(Version(1, 30));
 }
 
-void LegacyConverter::visit(FunctionCall &call)
+void FeatureConverter::visit(FunctionCall &call)
 {
 	if(call.declaration && call.declaration->source==BUILTIN_SOURCE)
 	{
@@ -438,7 +474,7 @@ void LegacyConverter::visit(FunctionCall &call)
 	TraversingVisitor::visit(call);
 }
 
-bool LegacyConverter::supports_interface_layouts() const
+bool FeatureConverter::supports_interface_layouts() const
 {
 	if(features.target_api==OPENGL_ES)
 		return check_version(Version(3, 0));
@@ -450,7 +486,7 @@ bool LegacyConverter::supports_interface_layouts() const
 		return false;
 }
 
-bool LegacyConverter::supports_stage_interface_layouts() const
+bool FeatureConverter::supports_stage_interface_layouts() const
 {
 	if(features.target_api==OPENGL_ES)
 		return check_version(Version(3, 10));
@@ -460,7 +496,7 @@ bool LegacyConverter::supports_stage_interface_layouts() const
 		return check_extension(&Features::arb_separate_shader_objects);
 }
 
-bool LegacyConverter::supports_centroid_sampling() const
+bool FeatureConverter::supports_centroid_sampling() const
 {
 	if(features.target_api==OPENGL_ES)
 		return check_version(Version(3, 0));
@@ -470,7 +506,7 @@ bool LegacyConverter::supports_centroid_sampling() const
 		return check_extension(&Features::ext_gpu_shader4);
 }
 
-bool LegacyConverter::supports_sample_sampling() const
+bool FeatureConverter::supports_sample_sampling() const
 {
 	if(features.target_api==OPENGL_ES)
 		return check_version(Version(3, 20));
@@ -480,7 +516,7 @@ bool LegacyConverter::supports_sample_sampling() const
 		return check_extension(&Features::arb_gpu_shader5);
 }
 
-bool LegacyConverter::supports_uniform_location() const
+bool FeatureConverter::supports_uniform_location() const
 {
 	if(features.target_api==OPENGL_ES)
 		return check_version(Version(3, 10));
@@ -490,7 +526,7 @@ bool LegacyConverter::supports_uniform_location() const
 		return check_extension(&Features::arb_explicit_uniform_location);
 }
 
-bool LegacyConverter::supports_binding() const
+bool FeatureConverter::supports_binding() const
 {
 	if(features.target_api==OPENGL_ES)
 		return check_version(Version(3, 10));
@@ -498,7 +534,7 @@ bool LegacyConverter::supports_binding() const
 		return check_version(Version(4, 20));
 }
 
-void LegacyConverter::visit(VariableDeclaration &var)
+void FeatureConverter::visit(VariableDeclaration &var)
 {
 	if(var.layout)
 	{
@@ -574,10 +610,14 @@ void LegacyConverter::visit(VariableDeclaration &var)
 		}
 	}
 
+	if(var.name=="gl_ClipDistance")
+		if(const Literal *literal_size = dynamic_cast<const Literal *>(var.array_size.get()))
+			stage->n_clip_distances = literal_size->value.value<int>();
+
 	TraversingVisitor::visit(var);
 }
 
-bool LegacyConverter::supports_interface_blocks(const string &iface) const
+bool FeatureConverter::supports_interface_blocks(const string &iface) const
 {
 	if(features.target_api==OPENGL_ES)
 	{
@@ -594,7 +634,7 @@ bool LegacyConverter::supports_interface_blocks(const string &iface) const
 		return false;
 }
 
-bool LegacyConverter::supports_interface_block_location() const
+bool FeatureConverter::supports_interface_block_location() const
 {
 	if(features.target_api==OPENGL_ES)
 		return check_version(Version(3, 20));
@@ -604,8 +644,9 @@ bool LegacyConverter::supports_interface_block_location() const
 		return check_extension(&Features::arb_enhanced_layouts);
 }
 
-void LegacyConverter::visit(InterfaceBlock &iface)
+void FeatureConverter::visit(InterfaceBlock &iface)
 {
+	bool push_constant = false;
 	if(iface.layout)
 	{
 		for(auto i=iface.layout->qualifiers.begin(); i!=iface.layout->qualifiers.end(); )
@@ -618,19 +659,26 @@ void LegacyConverter::visit(InterfaceBlock &iface)
 				i = iface.layout->qualifiers.erase(i);
 			}
 			else
+			{
+				if(i->name=="push_constant")
+					push_constant = true;
 				++i;
+			}
 		}
 
 		if(iface.layout->qualifiers.empty())
 			iface.layout = 0;
 	}
 
-	if(!supports_interface_blocks(iface.interface) && iface.type_declaration)
+	if((!supports_interface_blocks(iface.interface) || push_constant) && iface.type_declaration)
 	{
 		if(!iface.instance_name.empty())
 			unsupported("ARB_uniform_buffer_object required for interface block instances");
 		else if(iface.struct_declaration)
 		{
+			for(const RefPtr<Statement> &s: iface.struct_declaration->members.body)
+				if(VariableDeclaration *var = dynamic_cast<VariableDeclaration *>(s.get()))
+					var->interface = iface.interface;
 			stage->content.body.splice(uniform_insert_point, iface.struct_declaration->members.body);
 			nodes_to_remove.insert(&iface);
 			nodes_to_remove.insert(iface.struct_declaration);