dali/internal/event/rendering/shader-impl.cpp

   1 /*
   2  * Copyright (c) 2015 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 // CLASS HEADER
  19 #include <dali/internal/event/rendering/shader-impl.h> // Dali::Internal::Shader
  20
  21 // INTERNAL INCLUDES
  22 #include <dali/public-api/object/type-registry.h>
  23 #include <dali/public-api/shader-effects/shader-effect.h> // Dali::ShaderEffect::GeometryHints // TODO: MESH_REWORK REMOVE
  24 #include <dali/devel-api/rendering/shader.h> // Dali::Shader
  25 #include <dali/devel-api/scripting/scripting.h>
  26
  27 #include <dali/internal/event/common/object-impl-helper.h> // Dali::Internal::ObjectHelper
  28 #include <dali/internal/event/common/property-helper.h> // DALI_PROPERTY_TABLE_BEGIN, DALI_PROPERTY, DALI_PROPERTY_TABLE_END
  29 #include <dali/internal/event/common/thread-local-storage.h>
  30 #include <dali/internal/event/effects/shader-factory.h>
  31 #include <dali/internal/event/resources/resource-ticket.h>
  32 #include <dali/internal/update/manager/update-manager.h>
  33
  34 namespace Dali
  35 {
  36 namespace Internal
  37 {
  38
  39 namespace
  40 {
  41
  42 /**
  43  *            |name             |type    |writable|animatable|constraint-input|enum for index-checking|
  44  */
  45 DALI_PROPERTY_TABLE_BEGIN
  46 DALI_PROPERTY( "program",       MAP,     true,     false,     false,  Dali::Shader::Property::PROGRAM )
  47 DALI_PROPERTY_TABLE_END( DEFAULT_ACTOR_PROPERTY_START_INDEX )
  48
  49 const ObjectImplHelper<DEFAULT_PROPERTY_COUNT> SHADER_IMPL = { DEFAULT_PROPERTY_DETAILS };
  50
  51 Dali::Scripting::StringEnum ShaderHintsTable[] =
  52   { { "HINT_NONE",                     Dali::Shader::HINT_NONE},
  53     { "HINT_OUTPUT_IS_TRANSPARENT",    Dali::Shader::HINT_OUTPUT_IS_TRANSPARENT},
  54     { "HINT_MODIFIES_GEOMETRY",        Dali::Shader::HINT_MODIFIES_GEOMETRY}
  55   };
  56
  57 const unsigned int ShaderHintsTableSize = sizeof( ShaderHintsTable ) / sizeof( ShaderHintsTable[0] );
  58
  59 BaseHandle Create()
  60 {
  61   return Dali::BaseHandle();
  62 }
  63
  64 TypeRegistration mType( typeid( Dali::Shader ), typeid( Dali::Handle ), Create );
  65
  66 #define TOKEN_STRING(x) (#x)
  67
  68 void AppendString(std::string& to, const std::string& append)
  69 {
  70   if(to.size())
  71   {
  72     to += ",";
  73   }
  74   to += append;
  75 }
  76
  77 Property::Value HintString(const Dali::Shader::ShaderHints& hints)
  78 {
  79   std::string s;
  80
  81   if(hints == Dali::Shader::HINT_NONE)
  82   {
  83     s = "HINT_NONE";
  84   }
  85
  86   if(hints & Dali::Shader::HINT_OUTPUT_IS_TRANSPARENT)
  87   {
  88     AppendString(s, "HINT_OUTPUT_IS_TRANSPARENT");
  89   }
  90
  91   if(hints & Dali::Shader::HINT_MODIFIES_GEOMETRY)
  92   {
  93     AppendString(s, "HINT_MODIFIES_GEOMETRY");
  94   }
  95
  96   return Property::Value(s);
  97 }
  98
  99
 100 } // unnamed namespace
 101
 102 ShaderPtr Shader::New( const std::string& vertexShader,
 103                        const std::string& fragmentShader,
 104                        Dali::Shader::ShaderHints hints )
 105 {
 106   ShaderPtr shader( new Shader() );
 107   shader->Initialize( vertexShader, fragmentShader, hints );
 108   return shader;
 109 }
 110
 111 const SceneGraph::Shader* Shader::GetShaderSceneObject() const
 112 {
 113   return mSceneObject;
 114 }
 115
 116 SceneGraph::Shader* Shader::GetShaderSceneObject()
 117 {
 118   return mSceneObject;
 119 }
 120
 121 unsigned int Shader::GetDefaultPropertyCount() const
 122 {
 123   return SHADER_IMPL.GetDefaultPropertyCount();
 124 }
 125
 126 void Shader::GetDefaultPropertyIndices( Property::IndexContainer& indices ) const
 127 {
 128   SHADER_IMPL.GetDefaultPropertyIndices( indices );
 129 }
 130
 131 const char* Shader::GetDefaultPropertyName(Property::Index index) const
 132 {
 133   return SHADER_IMPL.GetDefaultPropertyName( index );
 134 }
 135
 136 Property::Index Shader::GetDefaultPropertyIndex( const std::string& name ) const
 137 {
 138   return SHADER_IMPL.GetDefaultPropertyIndex( name );
 139 }
 140
 141 bool Shader::IsDefaultPropertyWritable( Property::Index index ) const
 142 {
 143   return SHADER_IMPL.IsDefaultPropertyWritable( index );
 144 }
 145
 146 bool Shader::IsDefaultPropertyAnimatable( Property::Index index ) const
 147 {
 148   return SHADER_IMPL.IsDefaultPropertyAnimatable( index );
 149 }
 150
 151 bool Shader::IsDefaultPropertyAConstraintInput( Property::Index index ) const
 152 {
 153   return SHADER_IMPL.IsDefaultPropertyAConstraintInput( index );
 154 }
 155
 156 Property::Type Shader::GetDefaultPropertyType( Property::Index index ) const
 157 {
 158   return SHADER_IMPL.GetDefaultPropertyType( index );
 159 }
 160
 161 void Shader::SetDefaultProperty( Property::Index index,
 162                                  const Property::Value& propertyValue )
 163 {
 164   switch(index)
 165   {
 166     case Dali::Shader::Property::PROGRAM:
 167     {
 168       if( propertyValue.GetType() == Property::MAP )
 169       {
 170         Dali::Property::Map* map = propertyValue.GetMap();
 171         std::string vertex;
 172         std::string fragment;
 173         Dali::Shader::ShaderHints hints(Dali::Shader::HINT_NONE);
 174
 175         if( Property::Value* value = map->Find("vertex") )
 176         {
 177           vertex = value->Get<std::string>();
 178         }
 179
 180         if( Property::Value* value = map->Find("fragment") )
 181         {
 182           fragment = value->Get<std::string>();
 183         }
 184
 185         if( Property::Value* value = map->Find("hints") )
 186         {
 187           static_cast<void>( // ignore return
 188             Scripting::GetEnumeration< Dali::Shader::ShaderHints >(value->Get<std::string>().c_str(),
 189                                                                    ShaderHintsTable, ShaderHintsTableSize, hints)
 190             );
 191         }
 192
 193         Initialize(vertex, fragment, hints );
 194       }
 195       else
 196       {
 197         DALI_LOG_WARNING( "Shader program property should be a map\n" );
 198       }
 199       break;
 200     }
 201   }
 202 }
 203
 204 void Shader::SetSceneGraphProperty( Property::Index index,
 205                                     const PropertyMetadata& entry,
 206                                     const Property::Value& value )
 207 {
 208   SHADER_IMPL.SetSceneGraphProperty( GetEventThreadServices(), this, index, entry, value );
 209   OnPropertySet(index, value);
 210 }
 211
 212 Property::Value Shader::GetDefaultProperty( Property::Index index ) const
 213 {
 214   Property::Value value;
 215
 216   switch(index)
 217   {
 218     case Dali::Shader::Property::PROGRAM:
 219     {
 220       Dali::Property::Map map;
 221       if( mShaderData )
 222       {
 223         map["vertex"] = Property::Value(mShaderData->GetVertexShader());
 224         map["fragment"] = Property::Value(mShaderData->GetFragmentShader());
 225         map["hints"] = HintString(mShaderData->GetHints());
 226       }
 227       value = map;
 228       break;
 229     }
 230   }
 231
 232   return value;
 233 }
 234
 235 const SceneGraph::PropertyOwner* Shader::GetPropertyOwner() const
 236 {
 237   return mSceneObject;
 238 }
 239
 240 const SceneGraph::PropertyOwner* Shader::GetSceneObject() const
 241 {
 242   return mSceneObject;
 243 }
 244
 245 const SceneGraph::PropertyBase* Shader::GetSceneObjectAnimatableProperty( Property::Index index ) const
 246 {
 247   DALI_ASSERT_ALWAYS( IsPropertyAnimatable( index ) && "Property is not animatable" );
 248   const SceneGraph::PropertyBase* property = NULL;
 249
 250   property = SHADER_IMPL.GetRegisteredSceneGraphProperty( this,
 251                                                           &Shader::FindAnimatableProperty,
 252                                                           &Shader::FindCustomProperty,
 253                                                           index );
 254
 255   if( property == NULL && index < DEFAULT_PROPERTY_MAX_COUNT )
 256   {
 257     DALI_ASSERT_ALWAYS( 0 && "Property is not animatable" );
 258   }
 259
 260   return property;
 261 }
 262
 263 const PropertyInputImpl* Shader::GetSceneObjectInputProperty( Property::Index index ) const
 264 {
 265   PropertyMetadata* property = NULL;
 266
 267   if(index >= PROPERTY_CUSTOM_START_INDEX )
 268   {
 269     property = FindCustomProperty( index );
 270   }
 271   else
 272   {
 273     property = FindAnimatableProperty( index );
 274   }
 275
 276   DALI_ASSERT_ALWAYS( property && "property index is invalid" );
 277   return property->GetSceneGraphProperty();
 278 }
 279
 280 int Shader::GetPropertyComponentIndex( Property::Index index ) const
 281 {
 282   return Property::INVALID_COMPONENT_INDEX;
 283 }
 284
 285 Shader::Shader()
 286   : mSceneObject( NULL ),
 287     mShaderData( NULL )
 288 {
 289 }
 290
 291 void Shader::Initialize(
 292   const std::string& vertexSource,
 293   const std::string& fragmentSource,
 294   Dali::Shader::ShaderHints hints )
 295 {
 296   EventThreadServices& eventThreadServices = GetEventThreadServices();
 297   SceneGraph::UpdateManager& updateManager = eventThreadServices.GetUpdateManager();
 298   mSceneObject = new SceneGraph::Shader( hints );
 299
 300   // Add to update manager
 301   AddShaderMessage( updateManager, *mSceneObject );
 302
 303   // Try to load a precompiled shader binary for the source pair:
 304   ThreadLocalStorage& tls = ThreadLocalStorage::Get();
 305   ShaderFactory& shaderFactory = tls.GetShaderFactory();
 306   size_t shaderHash;
 307   mShaderData = shaderFactory.Load( vertexSource, fragmentSource, hints, shaderHash );
 308
 309   // Add shader program to scene-object using a message to the UpdateManager
 310   SetShaderProgramMessage( updateManager, *mSceneObject, mShaderData, (hints & Dali::Shader::HINT_MODIFIES_GEOMETRY) != 0x0 );
 311   eventThreadServices.RegisterObject( this );
 312 }
 313
 314 Shader::~Shader()
 315 {
 316   if( EventThreadServices::IsCoreRunning() )
 317   {
 318     EventThreadServices& eventThreadServices = GetEventThreadServices();
 319     SceneGraph::UpdateManager& updateManager = eventThreadServices.GetUpdateManager();
 320     RemoveShaderMessage( updateManager, *mSceneObject);
 321
 322     eventThreadServices.UnregisterObject( this );
 323   }
 324 }
 325
 326
 327 } // namespace Internal
 328 } // namespace Dali