source/core/program.cpp

   1 #include <msp/core/algorithm.h>
   2 #include "error.h"
   3 #include "program.h"
   4
   5 using namespace std;
   6
   7 namespace Msp {
   8 namespace GL {
   9
  10 Program::Program(const Module &mod, const map<string, int> &spec_values)
  11 {
  12         add_stages(mod, spec_values);
  13 }
  14
  15 void Program::add_stages(const Module &mod, const map<string, int> &spec_values)
  16 {
  17         if(has_stages())
  18                 throw invalid_operation("Program::add_stages");
  19
  20         reflect_data = ReflectData();
  21
  22         TransientData transient;
  23         switch(mod.get_format())
  24         {
  25         case Module::GLSL:
  26                 add_glsl_stages(static_cast<const GlslModule &>(mod), spec_values, transient);
  27                 break;
  28         case Module::SPIR_V:
  29                 add_spirv_stages(static_cast<const SpirVModule &>(mod), spec_values);
  30                 break;
  31         default:
  32                 throw invalid_argument("Program::add_stages");
  33         }
  34
  35         finalize(mod, transient);
  36
  37         if(mod.get_format()==Module::SPIR_V)
  38         {
  39                 collect_uniforms(static_cast<const SpirVModule &>(mod));
  40                 collect_attributes(static_cast<const SpirVModule &>(mod));
  41                 collect_builtins(static_cast<const SpirVModule &>(mod));
  42         }
  43
  44         finalize_uniforms();
  45
  46         for(const ReflectData::UniformInfo &u: reflect_data.uniforms)
  47                 require_type(u.type);
  48         for(const ReflectData::AttributeInfo &a: reflect_data.attributes)
  49                 require_type(a.type);
  50 }
  51
  52 void Program::collect_uniforms(const SpirVModule &mod)
  53 {
  54         // Prepare the default block
  55         reflect_data.uniform_blocks.push_back(ReflectData::UniformBlockInfo());
  56         vector<vector<string> > block_uniform_names(1);
  57
  58         for(const SpirVModule::Variable &v: mod.get_variables())
  59         {
  60                 if(v.storage==SpirVModule::UNIFORM && v.struct_type)
  61                 {
  62                         reflect_data.uniform_blocks.push_back(ReflectData::UniformBlockInfo());
  63                         ReflectData::UniformBlockInfo &info = reflect_data.uniform_blocks.back();
  64                         info.name = v.struct_type->name;
  65                         info.bind_point = v.binding;
  66                         info.descriptor_set = v.descriptor_set;
  67                         info.data_size = v.struct_type->size;
  68
  69                         string prefix;
  70                         if(!v.name.empty())
  71                                 prefix = v.struct_type->name+".";
  72                         block_uniform_names.push_back(vector<string>());
  73                         collect_block_uniforms(*v.struct_type, prefix, 0, block_uniform_names.back());
  74                 }
  75                 else if(v.storage==SpirVModule::UNIFORM_CONSTANT && v.location>=0)
  76                 {
  77                         block_uniform_names[0].push_back(v.name);
  78                         reflect_data.uniforms.push_back(ReflectData::UniformInfo());
  79                         ReflectData::UniformInfo &info = reflect_data.uniforms.back();
  80                         info.name = v.name;
  81                         info.tag = v.name;
  82                         info.location = v.location;
  83                         info.binding = v.binding;
  84                         info.descriptor_set = v.descriptor_set;
  85                         info.array_size = max(v.array_size, 1U);
  86                         info.type = v.type;
  87                 }
  88         }
  89
  90         sort_member(reflect_data.uniforms, &ReflectData::UniformInfo::tag);
  91
  92         for(unsigned i=0; i<reflect_data.uniform_blocks.size(); ++i)
  93         {
  94                 ReflectData::UniformBlockInfo &block = reflect_data.uniform_blocks[i];
  95                 for(const string &n: block_uniform_names[i])
  96                 {
  97                         // The element is already known to be present
  98                         ReflectData::UniformInfo &uni = *lower_bound_member(reflect_data.uniforms, Tag(n), &ReflectData::UniformInfo::tag);
  99                         block.uniforms.push_back(&uni);
 100                         uni.block = &block;
 101                 }
 102                 block.sort_uniforms();
 103                 block.update_layout_hash();
 104         }
 105
 106         reflect_data.update_layout_hash();
 107 }
 108
 109 void Program::collect_block_uniforms(const SpirVModule::Structure &strct, const string &prefix, unsigned base_offset, vector<string> &uniform_names)
 110 {
 111         for(const SpirVModule::StructMember &m: strct.members)
 112         {
 113                 unsigned offset = base_offset+m.offset;
 114                 if(m.struct_type)
 115                 {
 116                         if(m.array_size)
 117                         {
 118                                 for(unsigned j=0; j<m.array_size; ++j, offset+=m.array_stride)
 119                                         collect_block_uniforms(*m.struct_type, format("%s%s[%d].", prefix, m.name, j), offset, uniform_names);
 120                         }
 121                         else
 122                                 collect_block_uniforms(*m.struct_type, prefix+m.name+".", offset, uniform_names);
 123                 }
 124                 else
 125                 {
 126                         string name = prefix+m.name;
 127                         uniform_names.push_back(name);
 128                         reflect_data.uniforms.push_back(ReflectData::UniformInfo());
 129                         ReflectData::UniformInfo &info = reflect_data.uniforms.back();
 130                         info.name = name;
 131                         info.tag = name;
 132                         info.offset = offset;
 133                         info.array_size = max(m.array_size, 1U);
 134                         info.array_stride = m.array_stride;
 135                         info.matrix_stride = m.matrix_stride;
 136                         info.type = m.type;
 137                 }
 138         }
 139 }
 140
 141 void Program::collect_attributes(const SpirVModule &mod)
 142 {
 143         for(const SpirVModule::EntryPoint &e: mod.get_entry_points())
 144                 if(e.stage==SpirVModule::VERTEX && e.name=="main")
 145                 {
 146                         for(const SpirVModule::Variable *v: e.globals)
 147                                 if(v->storage==SpirVModule::INPUT)
 148                                 {
 149                                         reflect_data.attributes.push_back(ReflectData::AttributeInfo());
 150                                         ReflectData::AttributeInfo &info = reflect_data.attributes.back();
 151                                         info.name = v->name;
 152                                         info.location = v->location;
 153                                         info.array_size = v->array_size;
 154                                         info.type = v->type;
 155                                 }
 156                 }
 157 }
 158
 159 void Program::collect_builtins(const SpirVModule &mod)
 160 {
 161         for(const SpirVModule::Variable &v: mod.get_variables())
 162                 if(v.storage==SpirVModule::OUTPUT && v.struct_type)
 163                         collect_builtins(*v.struct_type);
 164 }
 165
 166 void Program::collect_builtins(const SpirVModule::Structure &strct)
 167 {
 168         for(const SpirVModule::StructMember &m: strct.members)
 169                 if(m.builtin==SpirVModule::CLIP_DISTANCE)
 170                         reflect_data.n_clip_distances = m.array_size;
 171 }
 172
 173 const ReflectData::UniformBlockInfo &Program::get_uniform_block_info(const string &name) const
 174 {
 175         auto i = find_member(reflect_data.uniform_blocks, name, &ReflectData::UniformBlockInfo::name);
 176         if(i==reflect_data.uniform_blocks.end())
 177                 throw key_error(name);
 178         return *i;
 179 }
 180
 181 const ReflectData::UniformInfo &Program::get_uniform_info(const string &name) const
 182 {
 183         auto i = lower_bound_member(reflect_data.uniforms, Tag(name), &ReflectData::UniformInfo::tag);
 184         if(i==reflect_data.uniforms.end() || i->name!=name)
 185                 throw key_error(name);
 186         return *i;
 187 }
 188
 189 const ReflectData::UniformInfo &Program::get_uniform_info(Tag tag) const
 190 {
 191         auto i = lower_bound_member(reflect_data.uniforms, tag, &ReflectData::UniformInfo::tag);
 192         if(i==reflect_data.uniforms.end() || i->tag!=tag)
 193                 throw key_error(tag);
 194         return *i;
 195 }
 196
 197 int Program::get_uniform_location(const string &name) const
 198 {
 199         if(name[name.size()-1]==']')
 200                 throw invalid_argument("Program::get_uniform_location");
 201
 202         auto i = lower_bound_member(reflect_data.uniforms, Tag(name), &ReflectData::UniformInfo::tag);
 203         return i!=reflect_data.uniforms.end() && i->name==name && i->block->bind_point<0 ? i->location : -1;
 204 }
 205
 206 int Program::get_uniform_location(Tag tag) const
 207 {
 208         auto i = lower_bound_member(reflect_data.uniforms, tag, &ReflectData::UniformInfo::tag);
 209         return i!=reflect_data.uniforms.end() && i->tag==tag && i->block->bind_point<0 ? i->location : -1;
 210 }
 211
 212 int Program::get_uniform_binding(Tag tag) const
 213 {
 214         auto i = lower_bound_member(reflect_data.uniforms, tag, &ReflectData::UniformInfo::tag);
 215         return i!=reflect_data.uniforms.end() && i->tag==tag ? i->binding : -1;
 216 }
 217
 218 const ReflectData::AttributeInfo &Program::get_attribute_info(const string &name) const
 219 {
 220         auto i = lower_bound_member(reflect_data.attributes, name, &ReflectData::AttributeInfo::name);
 221         if(i==reflect_data.attributes.end() || i->name!=name)
 222                 throw key_error(name);
 223         return *i;
 224 }
 225
 226 int Program::get_attribute_location(const string &name) const
 227 {
 228         if(name[name.size()-1]==']')
 229                 throw invalid_argument("Program::get_attribute_location");
 230
 231         auto i = lower_bound_member(reflect_data.attributes, name, &ReflectData::AttributeInfo::name);
 232         return i!=reflect_data.attributes.end() && i->name==name ? i->location : -1;
 233 }
 234
 235
 236 Program::Loader::Loader(Program &p, Collection &c):
 237         DataFile::CollectionObjectLoader<Program>(p, &c)
 238 {
 239         add("module", &Loader::module);
 240 }
 241
 242 void Program::Loader::module(const string &n)
 243 {
 244         map<string, int> spec_values;
 245         SpecializationLoader ldr(spec_values);
 246         load_sub_with(ldr);
 247         obj.add_stages(get_collection().get<Module>(n), spec_values);
 248 }
 249
 250
 251 DataFile::Loader::ActionMap Program::SpecializationLoader::shared_actions;
 252
 253 Program::SpecializationLoader::SpecializationLoader(map<string, int> &sv):
 254         spec_values(sv)
 255 {
 256         set_actions(shared_actions);
 257 }
 258
 259 void Program::SpecializationLoader::init_actions()
 260 {
 261         add("specialize", &SpecializationLoader::specialize_bool);
 262         add("specialize", &SpecializationLoader::specialize_int);
 263 }
 264
 265 void Program::SpecializationLoader::specialize_bool(const string &name, bool value)
 266 {
 267         spec_values[name] = value;
 268 }
 269
 270 void Program::SpecializationLoader::specialize_int(const string &name, int value)
 271 {
 272         spec_values[name] = value;
 273 }
 274
 275 } // namespace GL
 276 } // namespace Msp