]> git.tdb.fi Git - libs/gl.git/blobdiff - source/glsl/finalize.cpp
Use default member initializers for simple types
[libs/gl.git] / source / glsl / finalize.cpp
index 1b300e72a872cd55aa19727cf284efba5607b26f..4068037e919e81b5cc514d12584bec7df8088360 100644 (file)
@@ -1,4 +1,5 @@
 #include <msp/core/algorithm.h>
+#include <msp/core/hash.h>
 #include <msp/core/raii.h>
 #include <msp/strings/lexicalcast.h>
 #include "finalize.h"
@@ -11,11 +12,71 @@ namespace Msp {
 namespace GL {
 namespace SL {
 
-void LocationAllocator::apply(Module &module)
+void StructOrganizer::visit(StructDeclaration &strct)
 {
-       for(list<Stage>::iterator i=module.stages.begin(); i!=module.stages.end(); ++i)
-               apply(*i);
+       SetForScope<int> set_offset(offset, 0);
+       TraversingVisitor::visit(strct);
+}
+
+void StructOrganizer::visit(VariableDeclaration &var)
+{
+       if(offset>=0)
+       {
+               int *layout_offset = 0;
+               bool has_matrix_order = false;
+               if(var.layout)
+               {
+                       for(Layout::Qualifier &q: var.layout->qualifiers)
+                       {
+                               if(q.name=="offset" && q.has_value)
+                               {
+                                       layout_offset = &q.value;
+                                       if(q.value>=offset)
+                                               offset = q.value;
+                               }
+                               else if(q.name=="column_major" || q.name=="row_major")
+                                       has_matrix_order = true;
+                       }
+               }
+
+               MemoryRequirementsCalculator::Result mem_reqs = MemoryRequirementsCalculator().apply(var);
+               offset += mem_reqs.alignment-1;
+               offset -= offset%mem_reqs.alignment;
+
+               if(layout_offset)
+                       *layout_offset = offset;
+               else
+               {
+                       if(!var.layout)
+                               var.layout = new Layout;
+
+                       var.layout->qualifiers.push_back(Layout::Qualifier("offset", offset));
+               }
+
+               if(!has_matrix_order)
+               {
+                       const BasicTypeDeclaration *basic = dynamic_cast<const BasicTypeDeclaration *>(var.type_declaration);
+                       while(basic && basic->kind==BasicTypeDeclaration::ARRAY)
+                               basic = dynamic_cast<const BasicTypeDeclaration *>(basic->base_type);
+                       if(basic && basic->kind==BasicTypeDeclaration::MATRIX)
+                               var.layout->qualifiers.push_back(Layout::Qualifier("column_major"));
+               }
+
+               offset += mem_reqs.size;
+       }
+}
+
+
+void LocationAllocator::apply(Module &module, const Features &features)
+{
+       for(Stage &s: module.stages)
+               apply(s);
        allocate_locations("uniform");
+
+       for(InterfaceBlock *b: unbound_blocks)
+               bind_uniform(b->layout, b->block_name, features.uniform_binding_range);
+       for(VariableDeclaration *t: unbound_textures)
+               bind_uniform(t->layout, t->name, features.texture_binding_range);
 }
 
 void LocationAllocator::apply(Stage &stage)
@@ -31,9 +92,9 @@ void LocationAllocator::apply(Stage &stage)
 
 void LocationAllocator::allocate_locations(const string &iface)
 {
-       vector<VariableDeclaration *>::iterator write = unplaced_variables.begin();
+       auto write = unplaced_variables.begin();
        unsigned next = 0;
-       for(vector<VariableDeclaration *>::const_iterator i=unplaced_variables.begin(); i!=unplaced_variables.end(); ++i)
+       for(auto i=unplaced_variables.begin(); i!=unplaced_variables.end(); ++i)
        {
                if((*i)->interface!=iface)
                {
@@ -45,10 +106,10 @@ void LocationAllocator::allocate_locations(const string &iface)
 
                if((*i)->interface=="uniform")
                {
-                       map<string, unsigned>::const_iterator j = uniform_locations.find((*i)->name);
-                       if(j!=uniform_locations.end())
+                       auto j = uniforms.find((*i)->name);
+                       if(j!=uniforms.end() && j->second.location>=0)
                        {
-                               add_location((*i)->layout, j->second);
+                               add_layout_value((*i)->layout, "location", j->second.location);
                                continue;
                        }
                }
@@ -67,9 +128,9 @@ void LocationAllocator::allocate_locations(const string &iface)
                        next = blocking+1;
                }
 
-               add_location((*i)->layout, next);
+               add_layout_value((*i)->layout, "location", next);
                if((*i)->interface=="uniform")
-                       uniform_locations[(*i)->name] = next;
+                       uniforms[(*i)->name].location = next;
 
                for(unsigned j=0; j<size; ++j)
                        used.insert(next+j);
@@ -79,21 +140,39 @@ void LocationAllocator::allocate_locations(const string &iface)
        unplaced_variables.erase(write, unplaced_variables.end());
 }
 
-void LocationAllocator::add_location(RefPtr<Layout> &layout, unsigned location)
+void LocationAllocator::bind_uniform(RefPtr<Layout> &layout, const string &name, unsigned range)
+{
+       auto i = uniforms.find(name);
+       if(i!=uniforms.end() && i->second.bind_point>=0)
+               add_layout_value(layout, "binding", i->second.bind_point);
+       else
+       {
+               set<unsigned> &used = used_bindings[0];
+
+               unsigned bind_point = fold32(hash64(name))%range;
+               while(used.count(bind_point))
+                       bind_point = (bind_point+1)%range;
+
+               add_layout_value(layout, "binding", bind_point);
+               uniforms[name].bind_point = bind_point;
+               used.insert(bind_point);
+       }
+}
+
+void LocationAllocator::add_layout_value(RefPtr<Layout> &layout, const string &name, unsigned value)
 {
        if(!layout)
                layout = new Layout;
 
-       Layout::Qualifier qual;
-       qual.name = "location";
-       qual.has_value = true;
-       qual.value = location;
-       layout->qualifiers.push_back(qual);
+       layout->qualifiers.push_back(Layout::Qualifier(name, value));
 }
 
 void LocationAllocator::visit(VariableDeclaration &var)
 {
-       if(!var.interface.empty() && var.name.compare(0, 3, "gl_"))
+       if(!var.name.compare(0, 3, "gl_"))
+               return;
+
+       if(!var.interface.empty())
        {
                int location = (var.layout ? get_layout_value(*var.layout, "location") : -1);
 
@@ -101,7 +180,7 @@ void LocationAllocator::visit(VariableDeclaration &var)
                {
                        location = get_layout_value(*var.linked_declaration->layout, "location");
                        if(location>=0)
-                               add_location(var.layout, location);
+                               add_layout_value(var.layout, "location", location);
                }
 
                if(location>=0)
@@ -110,17 +189,50 @@ void LocationAllocator::visit(VariableDeclaration &var)
                        for(unsigned i=0; i<size; ++i)
                                used_locations[var.interface].insert(location+i);
                        if(var.interface=="uniform")
-                               uniform_locations[var.name] = location;
+                               uniforms[var.name].location = location;
                }
                else
                        unplaced_variables.push_back(&var);
        }
+
+       if(var.interface=="uniform")
+       {
+               const TypeDeclaration *type = var.type_declaration;
+               while(const BasicTypeDeclaration *basic = dynamic_cast<const BasicTypeDeclaration *>(type))
+                       type = basic->base_type;
+               if(dynamic_cast<const ImageTypeDeclaration *>(type))
+               {
+                       int bind_point = (var.layout ? get_layout_value(*var.layout, "binding") : -1);
+                       if(bind_point>=0)
+                       {
+                               used_bindings[0].insert(bind_point);
+                               uniforms[var.name].bind_point = bind_point;
+                       }
+                       else
+                               unbound_textures.push_back(&var);
+               }
+       }
 }
 
+void LocationAllocator::visit(InterfaceBlock &iface)
+{
+       if(!iface.instance_name.compare(0, 3, "gl_"))
+               return;
+
+       if(iface.interface=="uniform")
+       {
+               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);
+       }
+}
 
-PrecisionConverter::PrecisionConverter():
-       stage(0)
-{ }
 
 void PrecisionConverter::apply(Stage &s)
 {
@@ -131,7 +243,7 @@ void PrecisionConverter::apply(Stage &s)
 
 void PrecisionConverter::visit(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)
        {
                if(&block==&stage->content)
                        insert_point = i;
@@ -141,7 +253,7 @@ void PrecisionConverter::visit(Block &block)
 
 void PrecisionConverter::visit(Precision &prec)
 {
-       if(stage->required_features.gl_api==OPENGL_ES2)
+       if(stage->required_features.target_api==OPENGL_ES)
                have_default.insert(prec.type);
        else
                nodes_to_remove.insert(&prec);
@@ -149,7 +261,7 @@ void PrecisionConverter::visit(Precision &prec)
 
 void PrecisionConverter::visit(VariableDeclaration &var)
 {
-       if(stage->required_features.gl_api!=OPENGL_ES2)
+       if(stage->required_features.target_api!=OPENGL_ES)
        {
                var.precision.clear();
                return;
@@ -188,10 +300,6 @@ void PrecisionConverter::visit(VariableDeclaration &var)
 }
 
 
-LegacyConverter::LegacyConverter():
-       frag_out(0)
-{ }
-
 void LegacyConverter::apply(Stage &s, const Features &feat)
 {
        stage = &s;
@@ -202,7 +310,7 @@ void LegacyConverter::apply(Stage &s, const Features &feat)
                NodeRemover().apply(s, nodes_to_remove);
 
                if(!stage->required_features.glsl_version)
-                       stage->required_features.glsl_version = Version(1, (stage->required_features.gl_api==OPENGL_ES2 ? 0 : 10));
+                       stage->required_features.glsl_version = Version(1, (stage->required_features.target_api==OPENGL_ES ? 0 : 10));
        }
        else
                unsupported(format("Stage %s is not supported", Stage::get_stage_name(s.type)));
@@ -220,7 +328,7 @@ void LegacyConverter::unsupported(const string &reason)
 
 void LegacyConverter::visit(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)
        {
                if(&block==&stage->content)
                        uniform_insert_point = i;
@@ -252,7 +360,7 @@ bool LegacyConverter::supports_stage(Stage::Type st) const
 {
        if(st==Stage::GEOMETRY)
        {
-               if(features.gl_api==OPENGL_ES2)
+               if(features.target_api==OPENGL_ES)
                        return check_version(Version(3, 20));
                else
                        return check_version(Version(1, 50));
@@ -263,7 +371,7 @@ bool LegacyConverter::supports_stage(Stage::Type st) const
 
 bool LegacyConverter::supports_unified_interface_syntax() const
 {
-       if(features.gl_api==OPENGL_ES2)
+       if(features.target_api==OPENGL_ES)
                return check_version(Version(3, 0));
        else
                return check_version(Version(1, 30));
@@ -287,7 +395,7 @@ void LegacyConverter::visit(Assignment &assign)
 
 bool LegacyConverter::supports_unified_sampling_functions() const
 {
-       if(features.gl_api==OPENGL_ES2)
+       if(features.target_api==OPENGL_ES)
                return check_version(Version(3, 0));
        else
                return check_version(Version(1, 30));
@@ -332,7 +440,7 @@ void LegacyConverter::visit(FunctionCall &call)
 
 bool LegacyConverter::supports_interface_layouts() const
 {
-       if(features.gl_api==OPENGL_ES2)
+       if(features.target_api==OPENGL_ES)
                return check_version(Version(3, 0));
        else if(check_version(Version(3, 30)))
                return true;
@@ -344,7 +452,7 @@ bool LegacyConverter::supports_interface_layouts() const
 
 bool LegacyConverter::supports_stage_interface_layouts() const
 {
-       if(features.gl_api==OPENGL_ES2)
+       if(features.target_api==OPENGL_ES)
                return check_version(Version(3, 10));
        else if(check_version(Version(4, 10)))
                return true;
@@ -354,7 +462,7 @@ bool LegacyConverter::supports_stage_interface_layouts() const
 
 bool LegacyConverter::supports_centroid_sampling() const
 {
-       if(features.gl_api==OPENGL_ES2)
+       if(features.target_api==OPENGL_ES)
                return check_version(Version(3, 0));
        else if(check_version(Version(1, 20)))
                return true;
@@ -364,7 +472,7 @@ bool LegacyConverter::supports_centroid_sampling() const
 
 bool LegacyConverter::supports_sample_sampling() const
 {
-       if(features.gl_api==OPENGL_ES2)
+       if(features.target_api==OPENGL_ES)
                return check_version(Version(3, 20));
        else if(check_version(Version(4, 0)))
                return true;
@@ -374,7 +482,7 @@ bool LegacyConverter::supports_sample_sampling() const
 
 bool LegacyConverter::supports_uniform_location() const
 {
-       if(features.gl_api==OPENGL_ES2)
+       if(features.target_api==OPENGL_ES)
                return check_version(Version(3, 10));
        else if(check_version(Version(4, 30)))
                return true;
@@ -384,7 +492,7 @@ bool LegacyConverter::supports_uniform_location() const
 
 bool LegacyConverter::supports_binding() const
 {
-       if(features.gl_api==OPENGL_ES2)
+       if(features.target_api==OPENGL_ES)
                return check_version(Version(3, 10));
        else
                return check_version(Version(4, 20));
@@ -394,7 +502,7 @@ void LegacyConverter::visit(VariableDeclaration &var)
 {
        if(var.layout)
        {
-               for(vector<Layout::Qualifier>::const_iterator i=var.layout->qualifiers.begin(); i!=var.layout->qualifiers.end(); )
+               for(auto i=var.layout->qualifiers.begin(); i!=var.layout->qualifiers.end(); )
                {
                        if(i->name=="location")
                        {
@@ -471,7 +579,7 @@ void LegacyConverter::visit(VariableDeclaration &var)
 
 bool LegacyConverter::supports_interface_blocks(const string &iface) const
 {
-       if(features.gl_api==OPENGL_ES2)
+       if(features.target_api==OPENGL_ES)
        {
                if(iface=="uniform")
                        return check_version(Version(3, 0));
@@ -488,7 +596,7 @@ bool LegacyConverter::supports_interface_blocks(const string &iface) const
 
 bool LegacyConverter::supports_interface_block_location() const
 {
-       if(features.gl_api==OPENGL_ES2)
+       if(features.target_api==OPENGL_ES)
                return check_version(Version(3, 20));
        else if(check_version(Version(4, 40)))
                return true;
@@ -500,7 +608,7 @@ void LegacyConverter::visit(InterfaceBlock &iface)
 {
        if(iface.layout)
        {
-               for(vector<Layout::Qualifier>::const_iterator i=iface.layout->qualifiers.begin(); i!=iface.layout->qualifiers.end(); )
+               for(auto i=iface.layout->qualifiers.begin(); i!=iface.layout->qualifiers.end(); )
                {
                        if(i->name=="location" && !supports_interface_block_location())
                                i = iface.layout->qualifiers.erase(i);