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