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 Program *Material::create_compatible_shader() const
  17 {
  18         return new Program(create_program_source());
  19 }
  20
  21 const Program *Material::create_compatible_shader(DataFile::Collection &coll) const
  22 {
  23         string source = create_program_source();
  24         string name = format("_material_%016x.glsl", hash64(source));
  25         Program *shprog = coll.find<Program>(name);
  26         if(shprog)
  27                 return shprog;
  28
  29         shprog = new Program(create_program_source());
  30         try
  31         {
  32                 coll.add(name, shprog);
  33         }
  34         catch(...)
  35         {
  36                 delete shprog;
  37                 throw;
  38         }
  39
  40         return shprog;
  41 }
  42
  43 void Material::attach_texture_to(const Texture *tex, Texturing &texturing, ProgramData &tex_shdata, const string &name) const
  44 {
  45         if(!tex)
  46                 return;
  47
  48         int unit = -1;
  49
  50         if(const Uniform *uni = tex_shdata.find_uniform(name))
  51                 if(const Uniform1i *uni_int = dynamic_cast<const Uniform1i *>(uni))
  52                         unit = uni_int->get();
  53
  54         if(unit<0)
  55                 unit = texturing.find_free_unit(name);
  56         if(unit<0)
  57                 throw runtime_error("no free texunit");
  58
  59         texturing.attach(unit, *tex, sampler);
  60         tex_shdata.uniform(name, unit);
  61 }
  62
  63 Material::MaterialRegistry &Material::get_material_registry()
  64 {
  65         static MaterialRegistry registry;
  66         static bool initialized = false;
  67         if(!initialized)
  68         {
  69                 initialized = true;
  70                 registry.register_type<BasicMaterial>("basic");
  71                 registry.register_type<PbrMaterial>("pbr");
  72                 registry.register_type<UnlitMaterial>("unlit");
  73         }
  74         return registry;
  75 }
  76
  77
  78 Material::Loader::Loader(Material &m):
  79         CollectionObjectLoader(m, 0)
  80 { }
  81
  82 Material::Loader::Loader(Material &m, Collection &c):
  83         CollectionObjectLoader(m, &c)
  84 { }
  85
  86 void Material::Loader::init_actions()
  87 {
  88         add("sampler", &Loader::sampler);
  89 }
  90
  91 void Material::Loader::sampler(const std::string &name)
  92 {
  93         obj.sampler = &get_collection().get<Sampler>(name);
  94 }
  95
  96
  97 DataFile::Loader::ActionMap Material::GenericLoader::shared_actions;
  98
  99 Material::GenericLoader::GenericLoader(DataFile::Collection *c):
 100         coll(c)
 101 {
 102         set_actions(shared_actions);
 103 }
 104
 105 void Material::GenericLoader::init_actions()
 106 {
 107         get_material_registry().add_all(*this);
 108 }
 109
 110 } // namespace GL
 111 } // namespace Msp