dali/internal/render/renderers/pipeline-cache.cpp

   1 /*
   2  * Copyright (c) 2023 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 // CLASS HEADER
  18 #include <dali/internal/render/renderers/pipeline-cache.h>
  19
  20 // INTERNAL INCLUDES
  21 #include <dali/graphics-api/graphics-types.h>
  22 #include <dali/integration-api/debug.h>
  23 #include <dali/internal/render/common/render-instruction.h>
  24 #include <dali/internal/render/renderers/render-renderer.h>
  25 #include <dali/internal/render/renderers/render-vertex-buffer.h>
  26 #include <dali/internal/render/shaders/program.h>
  27
  28 namespace Dali::Internal::Render
  29 {
  30 namespace
  31 {
  32 constexpr uint32_t CACHE_CLEAN_FRAME_COUNT = 600; // 60fps * 10sec
  33
  34 // Helper to get the vertex input format
  35 Dali::Graphics::VertexInputFormat GetPropertyVertexFormat(Property::Type propertyType)
  36 {
  37   Dali::Graphics::VertexInputFormat type{};
  38
  39   switch(propertyType)
  40   {
  41     case Property::BOOLEAN:
  42     {
  43       type = Dali::Graphics::VertexInputFormat::UNDEFINED; // type = GL_BYTE; @todo new type for this?
  44       break;
  45     }
  46     case Property::INTEGER:
  47     {
  48       type = Dali::Graphics::VertexInputFormat::INTEGER; // (short)
  49       break;
  50     }
  51     case Property::FLOAT:
  52     {
  53       type = Dali::Graphics::VertexInputFormat::FLOAT;
  54       break;
  55     }
  56     case Property::VECTOR2:
  57     {
  58       type = Dali::Graphics::VertexInputFormat::FVECTOR2;
  59       break;
  60     }
  61     case Property::VECTOR3:
  62     {
  63       type = Dali::Graphics::VertexInputFormat::FVECTOR3;
  64       break;
  65     }
  66     case Property::VECTOR4:
  67     {
  68       type = Dali::Graphics::VertexInputFormat::FVECTOR4;
  69       break;
  70     }
  71     default:
  72     {
  73       type = Dali::Graphics::VertexInputFormat::UNDEFINED;
  74     }
  75   }
  76
  77   return type;
  78 }
  79
  80 constexpr Graphics::CullMode ConvertCullFace(Dali::FaceCullingMode::Type mode)
  81 {
  82   switch(mode)
  83   {
  84     case Dali::FaceCullingMode::NONE:
  85     {
  86       return Graphics::CullMode::NONE;
  87     }
  88     case Dali::FaceCullingMode::FRONT:
  89     {
  90       return Graphics::CullMode::FRONT;
  91     }
  92     case Dali::FaceCullingMode::BACK:
  93     {
  94       return Graphics::CullMode::BACK;
  95     }
  96     case Dali::FaceCullingMode::FRONT_AND_BACK:
  97     {
  98       return Graphics::CullMode::FRONT_AND_BACK;
  99     }
 100     default:
 101     {
 102       return Graphics::CullMode::NONE;
 103     }
 104   }
 105 }
 106
 107 constexpr Graphics::BlendFactor ConvertBlendFactor(BlendFactor::Type blendFactor)
 108 {
 109   switch(blendFactor)
 110   {
 111     case BlendFactor::ZERO:
 112       return Graphics::BlendFactor::ZERO;
 113     case BlendFactor::ONE:
 114       return Graphics::BlendFactor::ONE;
 115     case BlendFactor::SRC_COLOR:
 116       return Graphics::BlendFactor::SRC_COLOR;
 117     case BlendFactor::ONE_MINUS_SRC_COLOR:
 118       return Graphics::BlendFactor::ONE_MINUS_SRC_COLOR;
 119     case BlendFactor::SRC_ALPHA:
 120       return Graphics::BlendFactor::SRC_ALPHA;
 121     case BlendFactor::ONE_MINUS_SRC_ALPHA:
 122       return Graphics::BlendFactor::ONE_MINUS_SRC_ALPHA;
 123     case BlendFactor::DST_ALPHA:
 124       return Graphics::BlendFactor::DST_ALPHA;
 125     case BlendFactor::ONE_MINUS_DST_ALPHA:
 126       return Graphics::BlendFactor::ONE_MINUS_DST_ALPHA;
 127     case BlendFactor::DST_COLOR:
 128       return Graphics::BlendFactor::DST_COLOR;
 129     case BlendFactor::ONE_MINUS_DST_COLOR:
 130       return Graphics::BlendFactor::ONE_MINUS_DST_COLOR;
 131     case BlendFactor::SRC_ALPHA_SATURATE:
 132       return Graphics::BlendFactor::SRC_ALPHA_SATURATE;
 133     case BlendFactor::CONSTANT_COLOR:
 134       return Graphics::BlendFactor::CONSTANT_COLOR;
 135     case BlendFactor::ONE_MINUS_CONSTANT_COLOR:
 136       return Graphics::BlendFactor::ONE_MINUS_CONSTANT_COLOR;
 137     case BlendFactor::CONSTANT_ALPHA:
 138       return Graphics::BlendFactor::CONSTANT_ALPHA;
 139     case BlendFactor::ONE_MINUS_CONSTANT_ALPHA:
 140       return Graphics::BlendFactor::ONE_MINUS_CONSTANT_ALPHA;
 141     default:
 142       return Graphics::BlendFactor();
 143   }
 144 }
 145
 146 constexpr Graphics::BlendOp ConvertBlendEquation(DevelBlendEquation::Type blendEquation)
 147 {
 148   switch(blendEquation)
 149   {
 150     case DevelBlendEquation::ADD:
 151       return Graphics::BlendOp::ADD;
 152     case DevelBlendEquation::SUBTRACT:
 153       return Graphics::BlendOp::SUBTRACT;
 154     case DevelBlendEquation::REVERSE_SUBTRACT:
 155       return Graphics::BlendOp::REVERSE_SUBTRACT;
 156     case DevelBlendEquation::COLOR:
 157       return Graphics::BlendOp::COLOR;
 158     case DevelBlendEquation::COLOR_BURN:
 159       return Graphics::BlendOp::COLOR_BURN;
 160     case DevelBlendEquation::COLOR_DODGE:
 161       return Graphics::BlendOp::COLOR_DODGE;
 162     case DevelBlendEquation::DARKEN:
 163       return Graphics::BlendOp::DARKEN;
 164     case DevelBlendEquation::DIFFERENCE:
 165       return Graphics::BlendOp::DIFFERENCE;
 166     case DevelBlendEquation::EXCLUSION:
 167       return Graphics::BlendOp::EXCLUSION;
 168     case DevelBlendEquation::HARD_LIGHT:
 169       return Graphics::BlendOp::HARD_LIGHT;
 170     case DevelBlendEquation::HUE:
 171       return Graphics::BlendOp::HUE;
 172     case DevelBlendEquation::LIGHTEN:
 173       return Graphics::BlendOp::LIGHTEN;
 174     case DevelBlendEquation::LUMINOSITY:
 175       return Graphics::BlendOp::LUMINOSITY;
 176     case DevelBlendEquation::MAX:
 177       return Graphics::BlendOp::MAX;
 178     case DevelBlendEquation::MIN:
 179       return Graphics::BlendOp::MIN;
 180     case DevelBlendEquation::MULTIPLY:
 181       return Graphics::BlendOp::MULTIPLY;
 182     case DevelBlendEquation::OVERLAY:
 183       return Graphics::BlendOp::OVERLAY;
 184     case DevelBlendEquation::SATURATION:
 185       return Graphics::BlendOp::SATURATION;
 186     case DevelBlendEquation::SCREEN:
 187       return Graphics::BlendOp::SCREEN;
 188     case DevelBlendEquation::SOFT_LIGHT:
 189       return Graphics::BlendOp::SOFT_LIGHT;
 190   }
 191   return Graphics::BlendOp{};
 192 }
 193 } // namespace
 194
 195 PipelineCacheL0Ptr PipelineCache::GetPipelineCacheL0(Program* program, Render::Geometry* geometry)
 196 {
 197   auto it = std::find_if(level0nodes.begin(), level0nodes.end(), [program, geometry](PipelineCacheL0& item) {
 198     return ((item.program == program && item.geometry == geometry));
 199   });
 200
 201   // Add new node to cache
 202   if(it == level0nodes.end())
 203   {
 204     uint32_t bindingIndex{0u};
 205     auto&    reflection = graphicsController->GetProgramReflection(program->GetGraphicsProgram());
 206
 207     Graphics::VertexInputState vertexInputState{};
 208     uint32_t                   base = 0;
 209
 210     for(auto&& vertexBuffer : geometry->GetVertexBuffers())
 211     {
 212       const VertexBuffer::Format& vertexFormat = *vertexBuffer->GetFormat();
 213
 214       uint32_t                  divisor         = vertexBuffer->GetDivisor();
 215       Graphics::VertexInputRate vertexInputRate = (divisor == 0
 216                                                      ? Graphics::VertexInputRate::PER_VERTEX
 217                                                      : Graphics::VertexInputRate::PER_INSTANCE);
 218
 219       vertexInputState.bufferBindings.emplace_back(vertexFormat.size, // stride
 220                                                    vertexInputRate);
 221       //@todo Add the actual rate to the graphics struct
 222
 223       const uint32_t attributeCount          = vertexBuffer->GetAttributeCount();
 224       uint32_t       lastBoundAttributeIndex = 0;
 225       for(uint32_t i = 0; i < attributeCount; ++i)
 226       {
 227         auto    attributeName = vertexBuffer->GetAttributeName(i);
 228         int32_t pLocation     = reflection.GetVertexAttributeLocation(std::string(attributeName.GetStringView()));
 229         if(-1 != pLocation)
 230         {
 231           auto location = static_cast<uint32_t>(pLocation);
 232           vertexInputState.attributes.emplace_back(location,
 233                                                    bindingIndex,
 234                                                    vertexFormat.components[i].offset,
 235                                                    GetPropertyVertexFormat(vertexFormat.components[i].type));
 236           ++lastBoundAttributeIndex;
 237         }
 238         else
 239         {
 240           DALI_LOG_WARNING("Attribute not found in the shader: %s\n", attributeName.GetCString());
 241           // Don't bind unused attributes.
 242         }
 243       }
 244       base += lastBoundAttributeIndex;
 245       ++bindingIndex;
 246     }
 247     PipelineCacheL0 level0;
 248     level0.program    = program;
 249     level0.geometry   = geometry;
 250     level0.inputState = vertexInputState;
 251
 252     it = level0nodes.insert(level0nodes.end(), std::move(level0));
 253   }
 254
 255   return it;
 256 }
 257
 258 PipelineCacheL1Ptr PipelineCacheL0::GetPipelineCacheL1(Render::Renderer* renderer, bool usingReflection)
 259 {
 260   // hash must be collision free
 261   uint32_t hash = 0;
 262   auto     topo = (uint32_t(geometry->GetTopology()) & 0xffu);
 263   auto     cull = (uint32_t(renderer->GetFaceCullMode()) & 0xffu);
 264
 265   static const Graphics::PolygonMode polyTable[] = {
 266     Graphics::PolygonMode::POINT,
 267     Graphics::PolygonMode::LINE,
 268     Graphics::PolygonMode::LINE,
 269     Graphics::PolygonMode::LINE,
 270     Graphics::PolygonMode::FILL,
 271     Graphics::PolygonMode::FILL,
 272     Graphics::PolygonMode::FILL};
 273
 274   auto poly = polyTable[topo];
 275
 276   static const FaceCullingMode::Type adjFaceCullingMode[4] =
 277     {
 278       FaceCullingMode::NONE,
 279       FaceCullingMode::BACK,
 280       FaceCullingMode::FRONT,
 281       FaceCullingMode::FRONT_AND_BACK,
 282     };
 283
 284   static const FaceCullingMode::Type normalFaceCullingMode[4] =
 285     {
 286       FaceCullingMode::NONE,
 287       FaceCullingMode::FRONT,
 288       FaceCullingMode::BACK,
 289       FaceCullingMode::FRONT_AND_BACK,
 290     };
 291
 292   static const FaceCullingMode::Type* cullModeTable[2] = {
 293     normalFaceCullingMode,
 294     adjFaceCullingMode};
 295
 296   // Retrieve cull mode
 297   auto cullModeTableIndex = uint32_t(usingReflection) & 1u;
 298   cull                    = cullModeTable[cullModeTableIndex][renderer->GetFaceCullMode()];
 299
 300   hash = (topo & 0xffu) | ((cull << 8u) & 0xff00u) | ((uint32_t(poly) << 16u) & 0xff0000u);
 301
 302   // If L1 not found by hash, create rasterization state describing pipeline and store it
 303   auto it = std::find_if(level1nodes.begin(), level1nodes.end(), [hash](PipelineCacheL1& item) { return item.hashCode == hash; });
 304
 305   if(it == level1nodes.end())
 306   {
 307     PipelineCacheL1 item;
 308     item.hashCode       = hash;
 309     item.rs.cullMode    = ConvertCullFace(FaceCullingMode::Type(cull));
 310     item.rs.frontFace   = Graphics::FrontFace::COUNTER_CLOCKWISE;
 311     item.rs.polygonMode = poly; // not in use
 312     item.ia.topology    = geometry->GetTopology();
 313
 314     it = level1nodes.insert(level1nodes.end(), std::move(item));
 315   }
 316
 317   return it;
 318 }
 319
 320 void PipelineCacheL0::ClearUnusedCache()
 321 {
 322   for(auto iter = level1nodes.begin(); iter != level1nodes.end();)
 323   {
 324     if(iter->ClearUnusedCache())
 325     {
 326       iter = level1nodes.erase(iter);
 327     }
 328     else
 329     {
 330       iter++;
 331     }
 332   }
 333 }
 334
 335 PipelineCacheL2Ptr PipelineCacheL1::GetPipelineCacheL2(bool blend, bool premul, BlendingOptions& blendingOptions)
 336 {
 337   // early out
 338   if(!blend)
 339   {
 340     if(DALI_UNLIKELY(noBlends.empty()))
 341     {
 342       noBlends.emplace_back(PipelineCacheL2{});
 343     }
 344
 345     auto& noBlend = *noBlends.begin();
 346
 347     if(noBlend.pipeline == nullptr)
 348     {
 349       // reset all before returning if pipeline has never been created for that case
 350       noBlend.hash = 0;
 351       memset(&noBlend.colorBlendState, 0, sizeof(Graphics::ColorBlendState));
 352     }
 353     return noBlends.begin();
 354   }
 355
 356   auto bitmask = uint32_t(blendingOptions.GetBitmask());
 357
 358   // Find by bitmask (L2 entries must be sorted by bitmask)
 359   auto it = std::find_if(level2nodes.begin(), level2nodes.end(), [bitmask](PipelineCacheL2& item) { return item.hash == bitmask; });
 360
 361   // TODO: find better way of blend constants lookup
 362   PipelineCacheL2Ptr retval = level2nodes.end();
 363   if(it != level2nodes.end())
 364   {
 365     bool hasBlendColor = blendingOptions.GetBlendColor();
 366     while(hasBlendColor && it != level2nodes.end() && (*it).hash == bitmask)
 367     {
 368       Vector4 v(it->colorBlendState.blendConstants);
 369       if(v == *blendingOptions.GetBlendColor())
 370       {
 371         retval = it;
 372       }
 373       ++it;
 374     }
 375     if(!hasBlendColor)
 376     {
 377       retval = it;
 378     }
 379   }
 380
 381   if(retval == level2nodes.end())
 382   {
 383     // create new entry and return it with null pipeline
 384     PipelineCacheL2 l2{};
 385     l2.pipeline           = nullptr;
 386     auto& colorBlendState = l2.colorBlendState;
 387     colorBlendState.SetBlendEnable(true);
 388     Graphics::BlendOp rgbOp   = ConvertBlendEquation(blendingOptions.GetBlendEquationRgb());
 389     Graphics::BlendOp alphaOp = ConvertBlendEquation(blendingOptions.GetBlendEquationAlpha());
 390     if(blendingOptions.IsAdvancedBlendEquationApplied() && premul)
 391     {
 392       if(rgbOp != alphaOp)
 393       {
 394         DALI_LOG_ERROR("Advanced Blend Equation MUST be applied by using BlendEquation.\n");
 395         alphaOp = rgbOp;
 396       }
 397     }
 398
 399     colorBlendState
 400       .SetSrcColorBlendFactor(ConvertBlendFactor(blendingOptions.GetBlendSrcFactorRgb()))
 401       .SetSrcAlphaBlendFactor(ConvertBlendFactor(blendingOptions.GetBlendSrcFactorAlpha()))
 402       .SetDstColorBlendFactor(ConvertBlendFactor(blendingOptions.GetBlendDestFactorRgb()))
 403       .SetDstAlphaBlendFactor(ConvertBlendFactor(blendingOptions.GetBlendDestFactorAlpha()))
 404       .SetColorBlendOp(rgbOp)
 405       .SetAlphaBlendOp(alphaOp);
 406
 407     // Blend color is optional and rarely used
 408     auto* blendColor = const_cast<Vector4*>(blendingOptions.GetBlendColor());
 409     if(blendColor)
 410     {
 411       colorBlendState.SetBlendConstants(blendColor->AsFloat());
 412     }
 413
 414     l2.hash = blendingOptions.GetBitmask();
 415
 416     auto upperBound = std::upper_bound(level2nodes.begin(), level2nodes.end(), l2, [](const PipelineCacheL2& lhs, const PipelineCacheL2& rhs) { return lhs.hash < rhs.hash; });
 417
 418     level2nodes.insert(upperBound, std::move(l2));
 419
 420     // run same function to retrieve retval
 421     retval = GetPipelineCacheL2(blend, premul, blendingOptions);
 422   }
 423
 424   return retval;
 425 }
 426
 427 bool PipelineCacheL1::ClearUnusedCache()
 428 {
 429   for(auto iter = level2nodes.begin(); iter != level2nodes.end();)
 430   {
 431     if(iter->referenceCount == 0)
 432     {
 433       iter = level2nodes.erase(iter);
 434     }
 435     else
 436     {
 437       iter++;
 438     }
 439   }
 440
 441   if(!noBlends.empty() && noBlends.begin()->referenceCount > 0)
 442   {
 443     return false;
 444   }
 445
 446   return level2nodes.empty();
 447 }
 448
 449 void PipelineCacheQueryInfo::GenerateHash()
 450 {
 451   // Lightweight hash value generation.
 452   hash = (reinterpret_cast<std::size_t>(program) >> Dali::Log<sizeof(decltype(*program))>::value) ^
 453          (reinterpret_cast<std::size_t>(geometry) >> Dali::Log<sizeof(decltype(*geometry))>::value) ^
 454          ((blendingEnabled ? 1u : 0u) << 0u) ^
 455          ((alphaPremultiplied ? 1u : 0u) << 1u) ^
 456          (static_cast<std::size_t>(geometry->GetTopology()) << 2u) ^
 457          (static_cast<std::size_t>(renderer->GetFaceCullMode()) << 5u) ^
 458          ((cameraUsingReflection ? 1u : 0u) << 8u) ^
 459          (blendingEnabled ? static_cast<std::size_t>(blendingOptions->GetBitmask()) : 0xDA11u);
 460 }
 461
 462 bool PipelineCacheQueryInfo::Equal(const PipelineCacheQueryInfo& lhs, const PipelineCacheQueryInfo& rhs) noexcept
 463 {
 464   // Naive equal check.
 465   const bool ret = (lhs.hash == rhs.hash) && // Check hash value first
 466                    (lhs.program == rhs.program) &&
 467                    (lhs.geometry == rhs.geometry) &&
 468                    (lhs.blendingEnabled == rhs.blendingEnabled) &&
 469                    (lhs.alphaPremultiplied == rhs.alphaPremultiplied) &&
 470                    (lhs.geometry->GetTopology() == rhs.geometry->GetTopology()) &&
 471                    (lhs.renderer->GetFaceCullMode() == rhs.renderer->GetFaceCullMode()) &&
 472                    (lhs.cameraUsingReflection == rhs.cameraUsingReflection) &&
 473                    (!lhs.blendingEnabled ||
 474                     (lhs.blendingOptions->GetBitmask() == rhs.blendingOptions->GetBitmask() &&
 475                      ((lhs.blendingOptions->GetBlendColor() == nullptr && rhs.blendingOptions->GetBlendColor() == nullptr) ||
 476                       (lhs.blendingOptions->GetBlendColor() &&
 477                        rhs.blendingOptions->GetBlendColor() &&
 478                        (*lhs.blendingOptions->GetBlendColor() == *rhs.blendingOptions->GetBlendColor())))));
 479
 480   return ret;
 481 }
 482
 483 PipelineCache::PipelineCache(Graphics::Controller& controller)
 484 : graphicsController(&controller)
 485 {
 486   // Clean up cache first
 487   CleanLatestUsedCache();
 488 }
 489
 490 PipelineResult PipelineCache::GetPipeline(const PipelineCacheQueryInfo& queryInfo, bool createNewIfNotFound)
 491 {
 492   // Seperate branch whether query use blending or not.
 493   const int latestUsedCacheIndex = queryInfo.blendingEnabled ? 0 : 1;
 494
 495   // If we can reuse latest bound pipeline, Fast return.
 496   if(ReuseLatestBoundPipeline(latestUsedCacheIndex, queryInfo))
 497   {
 498     mLatestResult[latestUsedCacheIndex].level2->referenceCount++;
 499     return mLatestResult[latestUsedCacheIndex];
 500   }
 501
 502   auto level0 = GetPipelineCacheL0(queryInfo.program, queryInfo.geometry);
 503   auto level1 = level0->GetPipelineCacheL1(queryInfo.renderer, queryInfo.cameraUsingReflection);
 504
 505   PipelineCachePtr level2 = level1->GetPipelineCacheL2(queryInfo.blendingEnabled, queryInfo.alphaPremultiplied, *queryInfo.blendingOptions);
 506
 507   // Create new pipeline at level2 if requested
 508   if(level2->pipeline == nullptr && createNewIfNotFound)
 509   {
 510     Graphics::ProgramState programState{};
 511     programState.program = &queryInfo.program->GetGraphicsProgram();
 512     // Create the pipeline
 513     Graphics::PipelineCreateInfo createInfo;
 514     createInfo
 515       .SetInputAssemblyState(&level1->ia)
 516       .SetVertexInputState(&level0->inputState)
 517       .SetRasterizationState(&level1->rs)
 518       .SetColorBlendState(&level2->colorBlendState)
 519       .SetProgramState(&programState);
 520
 521     // Store a pipeline per renderer per render (renderer can be owned by multiple nodes,
 522     // and re-drawn in multiple instructions).
 523     level2->pipeline = graphicsController->CreatePipeline(createInfo, nullptr);
 524   }
 525
 526   PipelineResult result{};
 527
 528   result.pipeline = level2->pipeline.get();
 529   result.level2   = level2;
 530
 531   level2->referenceCount++;
 532
 533   // Copy query and result
 534   mLatestQuery[latestUsedCacheIndex]  = queryInfo;
 535   mLatestResult[latestUsedCacheIndex] = result;
 536
 537   return result;
 538 }
 539
 540 bool PipelineCache::ReuseLatestBoundPipeline(const int latestUsedCacheIndex, const PipelineCacheQueryInfo& queryInfo) const
 541 {
 542   return mLatestResult[latestUsedCacheIndex].pipeline != nullptr && PipelineCacheQueryInfo::Equal(queryInfo, mLatestQuery[latestUsedCacheIndex]);
 543 }
 544
 545 void PipelineCache::PreRender()
 546 {
 547   CleanLatestUsedCache();
 548
 549   // We don't need to check this every frame
 550   if(++mFrameCount >= CACHE_CLEAN_FRAME_COUNT)
 551   {
 552     mFrameCount = 0u;
 553     ClearUnusedCache();
 554   }
 555 }
 556
 557 void PipelineCache::ClearUnusedCache()
 558 {
 559   for(auto iter = level0nodes.begin(); iter != level0nodes.end();)
 560   {
 561     iter->ClearUnusedCache();
 562
 563     if(iter->level1nodes.empty())
 564     {
 565       iter = level0nodes.erase(iter);
 566     }
 567     else
 568     {
 569       iter++;
 570     }
 571   }
 572 }
 573
 574 void PipelineCache::ResetPipeline(PipelineCachePtr pipelineCache)
 575 {
 576   // TODO : Can we always assume that pipelineCache input is valid iterator?
 577   pipelineCache->referenceCount--;
 578 }
 579
 580 } // namespace Dali::Internal::Render