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