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, transient);
  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), transient.spec_values);
  40                 collect_attributes(static_cast<const SpirVModule &>(mod));
  41         }
  42
  43         finalize_uniforms();
  44
  45         for(ReflectData::UniformBlockInfo &b: reflect_data.uniform_blocks)
  46                 if(!b.data_size && !b.uniforms.empty())
  47                 {
  48                         const ReflectData::UniformInfo &uni = *b.uniforms.back();
  49                         b.data_size = uni.location*16+uni.array_size*get_type_size(uni.type);
  50                 }
  51
  52         for(const ReflectData::UniformInfo &u: reflect_data.uniforms)
  53                 require_type(u.type);
  54         for(const ReflectData::AttributeInfo &a: reflect_data.attributes)
  55                 require_type(a.type);
  56 }
  57
  58 void Program::collect_uniforms(const SpirVModule &mod, const map<unsigned, int> &spec_values)
  59 {
  60         // Prepare the default block
  61         reflect_data.uniform_blocks.push_back(ReflectData::UniformBlockInfo());
  62         vector<vector<string> > block_uniform_names(1);
  63
  64         for(const SpirVModule::Variable &v: mod.get_variables())
  65         {
  66                 if(v.storage==SpirVModule::UNIFORM && v.struct_type)
  67                 {
  68                         reflect_data.uniform_blocks.push_back(ReflectData::UniformBlockInfo());
  69                         ReflectData::UniformBlockInfo &info = reflect_data.uniform_blocks.back();
  70                         info.name = v.struct_type->name;
  71                         info.bind_point = v.binding;
  72                         info.data_size = v.struct_type->size;
  73
  74                         string prefix;
  75                         if(!v.name.empty())
  76                                 prefix = v.struct_type->name+".";
  77                         block_uniform_names.push_back(vector<string>());
  78                         collect_block_uniforms(*v.struct_type, prefix, 0, spec_values, block_uniform_names.back());
  79                 }
  80                 else if(v.storage==SpirVModule::UNIFORM_CONSTANT && v.location>=0)
  81                 {
  82                         block_uniform_names[0].push_back(v.name);
  83                         reflect_data.uniforms.push_back(ReflectData::UniformInfo());
  84                         ReflectData::UniformInfo &info = reflect_data.uniforms.back();
  85                         info.name = v.name;
  86                         info.tag = v.name;
  87                         info.location = v.location;
  88                         info.binding = v.binding;
  89                         info.array_size = v.array_size;
  90                         info.type = v.type;
  91                 }
  92         }
  93
  94         sort_member(reflect_data.uniforms, &ReflectData::UniformInfo::tag);
  95
  96         for(unsigned i=0; i<reflect_data.uniform_blocks.size(); ++i)
  97         {
  98                 ReflectData::UniformBlockInfo &block = reflect_data.uniform_blocks[i];
  99                 for(const string &n: block_uniform_names[i])
 100                 {
 101                         // The element is already known to be present
 102                         ReflectData::UniformInfo &uni = *lower_bound_member(reflect_data.uniforms, Tag(n), &ReflectData::UniformInfo::tag);
 103                         block.uniforms.push_back(&uni);
 104                         uni.block = &block;
 105                 }
 106                 block.sort_uniforms();
 107                 block.update_layout_hash();
 108         }
 109
 110         reflect_data.update_layout_hash();
 111 }
 112
 113 void Program::collect_block_uniforms(const SpirVModule::Structure &strct, const string &prefix, unsigned base_offset, const map<unsigned, int> &spec_values, vector<string> &uniform_names)
 114 {
 115         for(const SpirVModule::StructMember &m: strct.members)
 116         {
 117                 unsigned offset = base_offset+m.offset;
 118                 if(m.struct_type)
 119                 {
 120                         unsigned array_size = m.array_size;
 121                         if(m.array_size_spec)
 122                         {
 123                                 array_size = m.array_size_spec->i_value;
 124                                 auto j = spec_values.find(m.array_size_spec->constant_id);
 125                                 if(j!=spec_values.end())
 126                                         array_size = j->second;
 127                         }
 128
 129                         if(array_size)
 130                         {
 131                                 for(unsigned j=0; j<array_size; ++j, offset+=m.array_stride)
 132                                         collect_block_uniforms(*m.struct_type, format("%s%s[%d].", prefix, m.name, j), offset, spec_values, uniform_names);
 133                         }
 134                         else
 135                                 collect_block_uniforms(*m.struct_type, prefix+m.name+".", offset, spec_values, uniform_names);
 136                 }
 137                 else
 138                 {
 139                         string name = prefix+m.name;
 140                         uniform_names.push_back(name);
 141                         reflect_data.uniforms.push_back(ReflectData::UniformInfo());
 142                         ReflectData::UniformInfo &info = reflect_data.uniforms.back();
 143                         info.name = name;
 144                         info.tag = name;
 145                         info.offset = offset;
 146                         info.array_size = m.array_size;
 147                         info.array_stride = m.array_stride;
 148                         info.matrix_stride = m.matrix_stride;
 149                         info.type = m.type;
 150                 }
 151         }
 152 }
 153
 154 void Program::collect_attributes(const SpirVModule &mod)
 155 {
 156         for(const SpirVModule::EntryPoint &e: mod.get_entry_points())
 157                 if(e.stage==SpirVModule::VERTEX && e.name=="main")
 158                 {
 159                         for(const SpirVModule::Variable *v: e.globals)
 160                                 if(v->storage==SpirVModule::INPUT)
 161                                 {
 162                                         reflect_data.attributes.push_back(ReflectData::AttributeInfo());
 163                                         ReflectData::AttributeInfo &info = reflect_data.attributes.back();
 164                                         info.name = v->name;
 165                                         info.location = v->location;
 166                                         info.array_size = v->array_size;
 167                                         info.type = v->type;
 168                                 }
 169                 }
 170 }
 171
 172 void Program::collect_builtins(const SpirVModule &mod)
 173 {
 174         for(const SpirVModule::Variable &v: mod.get_variables())
 175                 if(v.storage==SpirVModule::OUTPUT && v.struct_type)
 176                         collect_builtins(*v.struct_type);
 177 }
 178
 179 void Program::collect_builtins(const SpirVModule::Structure &strct)
 180 {
 181         for(const SpirVModule::StructMember &m: strct.members)
 182                 if(m.builtin==SpirVModule::CLIP_DISTANCE)
 183                         reflect_data.n_clip_distances = m.array_size;
 184 }
 185
 186 const ReflectData::UniformBlockInfo &Program::get_uniform_block_info(const string &name) const
 187 {
 188         auto i = find_member(reflect_data.uniform_blocks, name, &ReflectData::UniformBlockInfo::name);
 189         if(i==reflect_data.uniform_blocks.end())
 190                 throw key_error(name);
 191         return *i;
 192 }
 193
 194 const ReflectData::UniformInfo &Program::get_uniform_info(const string &name) const
 195 {
 196         auto i = lower_bound_member(reflect_data.uniforms, Tag(name), &ReflectData::UniformInfo::tag);
 197         if(i==reflect_data.uniforms.end() || i->name!=name)
 198                 throw key_error(name);
 199         return *i;
 200 }
 201
 202 const ReflectData::UniformInfo &Program::get_uniform_info(Tag tag) const
 203 {
 204         auto i = lower_bound_member(reflect_data.uniforms, tag, &ReflectData::UniformInfo::tag);
 205         if(i==reflect_data.uniforms.end() || i->tag!=tag)
 206                 throw key_error(tag);
 207         return *i;
 208 }
 209
 210 int Program::get_uniform_location(const string &name) const
 211 {
 212         if(name[name.size()-1]==']')
 213                 throw invalid_argument("Program::get_uniform_location");
 214
 215         auto i = lower_bound_member(reflect_data.uniforms, Tag(name), &ReflectData::UniformInfo::tag);
 216         return i!=reflect_data.uniforms.end() && i->name==name && i->block->bind_point<0 ? i->location : -1;
 217 }
 218
 219 int Program::get_uniform_location(Tag tag) const
 220 {
 221         auto i = lower_bound_member(reflect_data.uniforms, tag, &ReflectData::UniformInfo::tag);
 222         return i!=reflect_data.uniforms.end() && i->tag==tag && i->block->bind_point<0 ? i->location : -1;
 223 }
 224
 225 int Program::get_uniform_binding(Tag tag) const
 226 {
 227         auto i = lower_bound_member(reflect_data.uniforms, tag, &ReflectData::UniformInfo::tag);
 228         return i!=reflect_data.uniforms.end() && i->tag==tag ? i->binding : -1;
 229 }
 230
 231 const ReflectData::AttributeInfo &Program::get_attribute_info(const string &name) const
 232 {
 233         auto i = lower_bound_member(reflect_data.attributes, name, &ReflectData::AttributeInfo::name);
 234         if(i==reflect_data.attributes.end() || i->name!=name)
 235                 throw key_error(name);
 236         return *i;
 237 }
 238
 239 int Program::get_attribute_location(const string &name) const
 240 {
 241         if(name[name.size()-1]==']')
 242                 throw invalid_argument("Program::get_attribute_location");
 243
 244         auto i = lower_bound_member(reflect_data.attributes, name, &ReflectData::AttributeInfo::name);
 245         return i!=reflect_data.attributes.end() && i->name==name ? i->location : -1;
 246 }
 247
 248
 249 Program::Loader::Loader(Program &p, Collection &c):
 250         DataFile::CollectionObjectLoader<Program>(p, &c)
 251 {
 252         add("module", &Loader::module);
 253 }
 254
 255 void Program::Loader::module(const string &n)
 256 {
 257         map<string, int> spec_values;
 258         SpecializationLoader ldr(spec_values);
 259         load_sub_with(ldr);
 260         obj.add_stages(get_collection().get<Module>(n), spec_values);
 261 }
 262
 263
 264 DataFile::Loader::ActionMap Program::SpecializationLoader::shared_actions;
 265
 266 Program::SpecializationLoader::SpecializationLoader(map<string, int> &sv):
 267         spec_values(sv)
 268 {
 269         set_actions(shared_actions);
 270 }
 271
 272 void Program::SpecializationLoader::init_actions()
 273 {
 274         add("specialize", &SpecializationLoader::specialize_bool);
 275         add("specialize", &SpecializationLoader::specialize_int);
 276 }
 277
 278 void Program::SpecializationLoader::specialize_bool(const string &name, bool value)
 279 {
 280         spec_values[name] = value;
 281 }
 282
 283 void Program::SpecializationLoader::specialize_int(const string &name, int value)
 284 {
 285         spec_values[name] = value;
 286 }
 287
 288 } // namespace GL
 289 } // namespace Msp