source/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
  10 using namespace std;
  11
  12 namespace Msp {
  13 namespace GL {
  14
  15 Program *Material::create_compatible_shader() const
  16 {
  17         return new Program(create_program_source());
  18 }
  19
  20 const Program *Material::create_compatible_shader(DataFile::Collection &coll) const
  21 {
  22         string source = create_program_source();
  23         string name = format("_material_%016x.glsl", hash64(source));
  24         Program *shprog = coll.find<Program>(name);
  25         if(shprog)
  26                 return shprog;
  27
  28         shprog = new Program(create_program_source());
  29         try
  30         {
  31                 coll.add(name, shprog);
  32         }
  33         catch(...)
  34         {
  35                 delete shprog;
  36                 throw;
  37         }
  38
  39         return shprog;
  40 }
  41
  42 void Material::attach_texture_to(const Texture *tex, Texturing &texturing, ProgramData &tex_shdata, const string &name) const
  43 {
  44         if(!tex)
  45                 return;
  46
  47         int unit = -1;
  48
  49         if(const Uniform *uni = tex_shdata.find_uniform(name))
  50                 if(const Uniform1i *uni_int = dynamic_cast<const Uniform1i *>(uni))
  51                         unit = uni_int->get();
  52
  53         if(unit<0)
  54                 unit = texturing.find_free_unit(name);
  55         if(unit<0)
  56                 throw runtime_error("no free texunit");
  57
  58         texturing.attach(unit, *tex, sampler);
  59         tex_shdata.uniform(name, unit);
  60 }
  61
  62 Material::MaterialRegistry &Material::get_material_registry()
  63 {
  64         static MaterialRegistry registry;
  65         static bool initialized = false;
  66         if(!initialized)
  67         {
  68                 registry.register_type<BasicMaterial>("basic");
  69                 registry.register_type<PbrMaterial>("pbr");
  70         }
  71         return registry;
  72 }
  73
  74
  75 Material::Loader::Loader(Material &m):
  76         CollectionObjectLoader(m, 0)
  77 { }
  78
  79 Material::Loader::Loader(Material &m, Collection &c):
  80         CollectionObjectLoader(m, &c)
  81 { }
  82
  83 void Material::Loader::init_actions()
  84 {
  85         add("sampler", &Loader::sampler);
  86 }
  87
  88 void Material::Loader::sampler(const std::string &name)
  89 {
  90         obj.sampler = &get_collection().get<Sampler>(name);
  91 }
  92
  93
  94 DataFile::Loader::ActionMap Material::GenericLoader::shared_actions;
  95
  96 Material::GenericLoader::GenericLoader(DataFile::Collection *c):
  97         coll(c)
  98 {
  99         set_actions(shared_actions);
 100 }
 101
 102 void Material::GenericLoader::init_actions()
 103 {
 104         get_material_registry().add_all(*this);
 105 }
 106
 107 } // namespace GL
 108 } // namespace Msp