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 void Material::set_debug_name(const string &name)
  73 {
  74 #ifdef DEBUG
  75         shdata.set_debug_name(name+" [UBO]");
  76 #else
  77         (void)name;
  78 #endif
  79 }
  80
  81 Material::MaterialRegistry &Material::get_material_registry()
  82 {
  83         static MaterialRegistry registry;
  84         static bool initialized = false;
  85         if(!initialized)
  86         {
  87                 initialized = true;
  88                 registry.register_type<BasicMaterial>("basic");
  89                 registry.register_type<PbrMaterial>("pbr");
  90                 registry.register_type<UnlitMaterial>("unlit");
  91         }
  92         return registry;
  93 }
  94
  95
  96 Material::Loader::Loader(Material &m):
  97         CollectionObjectLoader(m, 0)
  98 { }
  99
 100 Material::Loader::Loader(Material &m, Collection &c):
 101         CollectionObjectLoader(m, &c)
 102 { }
 103
 104 void Material::Loader::init_actions()
 105 {
 106         add("sampler", &Loader::sampler);
 107 }
 108
 109 void Material::Loader::sampler(const string &name)
 110 {
 111         obj.sampler = &get_collection().get<Sampler>(name);
 112 }
 113
 114
 115 DataFile::Loader::ActionMap Material::GenericLoader::shared_actions;
 116
 117 Material::GenericLoader::GenericLoader(DataFile::Collection *c):
 118         coll(c),
 119         material(0),
 120         mat_loader(0)
 121 {
 122         set_actions(shared_actions);
 123 }
 124
 125 Material::GenericLoader::~GenericLoader()
 126 {
 127         delete material;
 128         delete mat_loader;
 129 }
 130
 131 void Material::GenericLoader::init_actions()
 132 {
 133         add("type", &GenericLoader::type);
 134 }
 135
 136 void Material::GenericLoader::type(const DataFile::Symbol &sym)
 137 {
 138         get_material_registry().invoke(sym.name, *this);
 139 }
 140
 141 } // namespace GL
 142 } // namespace Msp