source/materials/material.cpp

   1 #include <msp/core/hash.h>
   2 #include <msp/strings/format.h>
   3 #include "basicmaterial.h"
   4 #include "gl.h"
   5 #include "pbrmaterial.h"
   6 #include "resources.h"
   7 #include "texturing.h"
   8 #include "uniform.h"
   9 #include "unlitmaterial.h"
  10
  11 using namespace std;
  12
  13 namespace Msp {
  14 namespace GL {
  15
  16 const Program *Material::create_compatible_shader(DataFile::Collection &coll, const map<string, int> &extra_spec) const
  17 {
  18         string module_name;
  19         map<string, int> spec_values;
  20         fill_program_info(module_name, spec_values);
  21
  22         for(map<string, int>::const_iterator i=extra_spec.begin(); i!=extra_spec.end(); ++i)
  23                 spec_values[i->first] = i->second;
  24
  25         string info = module_name;
  26         for(map<string, int>::const_iterator i=spec_values.begin(); i!=spec_values.end(); ++i)
  27                 info += format(",%s:%d", i->first, i->second);
  28
  29         string name = format("_material_%016x.shader", hash64(info));
  30         Program *shprog = coll.find<Program>(name);
  31         if(shprog)
  32                 return shprog;
  33
  34         const Module &module = coll.get<Module>(module_name);
  35         shprog = new Program(module, spec_values);
  36         try
  37         {
  38                 coll.add(name, shprog);
  39         }
  40         catch(...)
  41         {
  42                 delete shprog;
  43                 throw;
  44         }
  45
  46         return shprog;
  47 }
  48
  49 #pragma GCC diagnostic push
  50 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
  51 void Material::attach_texture_to(const Texture *tex, Texturing &texturing, ProgramData &tex_shdata, const string &name) const
  52 {
  53         if(!tex)
  54                 return;
  55
  56         int unit = -1;
  57
  58         if(const Uniform *uni = tex_shdata.find_uniform(name))
  59                 if(const Uniform1i *uni_int = dynamic_cast<const Uniform1i *>(uni))
  60                         unit = uni_int->get();
  61
  62         if(unit<0)
  63                 unit = texturing.find_free_unit(name);
  64         if(unit<0)
  65                 throw runtime_error("no free texunit");
  66
  67         texturing.attach(unit, *tex, sampler);
  68         tex_shdata.uniform(name, unit);
  69 }
  70 #pragma GCC diagnostic pop
  71
  72 Material::MaterialRegistry &Material::get_material_registry()
  73 {
  74         static MaterialRegistry registry;
  75         static bool initialized = false;
  76         if(!initialized)
  77         {
  78                 initialized = true;
  79                 registry.register_type<BasicMaterial>("basic");
  80                 registry.register_type<PbrMaterial>("pbr");
  81                 registry.register_type<UnlitMaterial>("unlit");
  82         }
  83         return registry;
  84 }
  85
  86
  87 Material::Loader::Loader(Material &m):
  88         CollectionObjectLoader(m, 0)
  89 { }
  90
  91 Material::Loader::Loader(Material &m, Collection &c):
  92         CollectionObjectLoader(m, &c)
  93 { }
  94
  95 void Material::Loader::init_actions()
  96 {
  97         add("sampler", &Loader::sampler);
  98 }
  99
 100 void Material::Loader::sampler(const string &name)
 101 {
 102         obj.sampler = &get_collection().get<Sampler>(name);
 103 }
 104
 105
 106 DataFile::Loader::ActionMap Material::GenericLoader::shared_actions;
 107
 108 Material::GenericLoader::GenericLoader(DataFile::Collection *c):
 109         coll(c),
 110         material(0),
 111         mat_loader(0)
 112 {
 113         set_actions(shared_actions);
 114 }
 115
 116 Material::GenericLoader::~GenericLoader()
 117 {
 118         delete material;
 119         delete mat_loader;
 120 }
 121
 122 void Material::GenericLoader::init_actions()
 123 {
 124         add("type", &GenericLoader::type);
 125 }
 126
 127 void Material::GenericLoader::type(const DataFile::Symbol &sym)
 128 {
 129         get_material_registry().invoke(sym.name, *this);
 130 }
 131
 132 } // namespace GL
 133 } // namespace Msp