dali/internal/update/rendering/scene-graph-renderer.cpp

   1 /*
   2  * Copyright (c) 2022 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 "scene-graph-renderer.h"
  19
  20 // INTERNAL INCLUDES
  21 #include <dali/internal/common/blending-options.h>
  22 #include <dali/internal/common/internal-constants.h>
  23 #include <dali/internal/common/memory-pool-object-allocator.h>
  24 #include <dali/internal/render/data-providers/node-data-provider.h>
  25 #include <dali/internal/render/data-providers/render-data-provider.h>
  26 #include <dali/internal/render/queue/render-queue.h>
  27 #include <dali/internal/render/renderers/render-geometry.h>
  28 #include <dali/internal/render/shaders/program.h>
  29 #include <dali/internal/render/shaders/render-shader.h>
  30 #include <dali/internal/update/controllers/render-message-dispatcher.h>
  31 #include <dali/internal/update/controllers/scene-controller.h>
  32 #include <dali/internal/update/nodes/node.h>
  33 #include <dali/internal/update/rendering/scene-graph-texture-set.h>
  34
  35 namespace Dali
  36 {
  37 namespace Internal
  38 {
  39 namespace SceneGraph
  40 {
  41 namespace // unnamed namespace
  42 {
  43 //Memory pool used to allocate new renderers. Memory used by this pool will be released when shutting down DALi
  44 MemoryPoolObjectAllocator<Renderer> gRendererMemoryPool;
  45
  46 // Flags for re-sending data to renderer.
  47 enum Flags
  48 {
  49   RESEND_GEOMETRY                    = 1 << 0,
  50   RESEND_FACE_CULLING_MODE           = 1 << 1,
  51   RESEND_BLEND_COLOR                 = 1 << 2,
  52   RESEND_BLEND_BIT_MASK              = 1 << 3,
  53   RESEND_PREMULTIPLIED_ALPHA         = 1 << 4,
  54   RESEND_INDEXED_DRAW_FIRST_ELEMENT  = 1 << 5,
  55   RESEND_INDEXED_DRAW_ELEMENTS_COUNT = 1 << 6,
  56   RESEND_DEPTH_WRITE_MODE            = 1 << 7,
  57   RESEND_DEPTH_TEST_MODE             = 1 << 8,
  58   RESEND_DEPTH_FUNCTION              = 1 << 9,
  59   RESEND_RENDER_MODE                 = 1 << 10,
  60   RESEND_STENCIL_FUNCTION            = 1 << 11,
  61   RESEND_STENCIL_FUNCTION_MASK       = 1 << 12,
  62   RESEND_STENCIL_FUNCTION_REFERENCE  = 1 << 13,
  63   RESEND_STENCIL_MASK                = 1 << 14,
  64   RESEND_STENCIL_OPERATION_ON_FAIL   = 1 << 15,
  65   RESEND_STENCIL_OPERATION_ON_Z_FAIL = 1 << 16,
  66   RESEND_STENCIL_OPERATION_ON_Z_PASS = 1 << 17,
  67   RESEND_WRITE_TO_COLOR_BUFFER       = 1 << 18,
  68   RESEND_SHADER                      = 1 << 19,
  69   RESEND_DRAW_COMMANDS               = 1 << 20,
  70   RESEND_SET_RENDER_CALLBACK         = 1 << 21
  71 };
  72
  73 } // Anonymous namespace
  74
  75 Renderer* Renderer::New()
  76 {
  77   return new(gRendererMemoryPool.AllocateRawThreadSafe()) Renderer();
  78 }
  79
  80 Renderer::Renderer()
  81 : mSceneController(nullptr),
  82   mRenderer(nullptr),
  83   mTextureSet(nullptr),
  84   mGeometry(nullptr),
  85   mShader(nullptr),
  86   mBlendColor(nullptr),
  87   mStencilParameters(RenderMode::AUTO, StencilFunction::ALWAYS, 0xFF, 0x00, 0xFF, StencilOperation::KEEP, StencilOperation::KEEP, StencilOperation::KEEP),
  88   mIndexedDrawFirstElement(0u),
  89   mIndexedDrawElementsCount(0u),
  90   mBlendBitmask(0u),
  91   mResendFlag(0u),
  92   mDepthFunction(DepthFunction::LESS),
  93   mFaceCullingMode(FaceCullingMode::NONE),
  94   mBlendMode(BlendMode::AUTO),
  95   mDepthWriteMode(DepthWriteMode::AUTO),
  96   mDepthTestMode(DepthTestMode::AUTO),
  97   mRenderingBehavior(DevelRenderer::Rendering::IF_REQUIRED),
  98   mUpdateDecay(Renderer::Decay::INITIAL),
  99   mRegenerateUniformMap(false),
 100   mPremultipledAlphaEnabled(false),
 101   mOpacity(1.0f),
 102   mDepthIndex(0)
 103 {
 104   // Observe our own PropertyOwner's uniform map.
 105   AddUniformMapObserver(*this);
 106 }
 107
 108 Renderer::~Renderer()
 109 {
 110   if(mShader)
 111   {
 112     mShader->RemoveUniformMapObserver(*this);
 113     mShader = nullptr;
 114   }
 115 }
 116
 117 void Renderer::operator delete(void* ptr)
 118 {
 119   gRendererMemoryPool.FreeThreadSafe(static_cast<Renderer*>(ptr));
 120 }
 121
 122 bool Renderer::PrepareRender(BufferIndex updateBufferIndex)
 123 {
 124   bool rendererUpdated = mResendFlag || mRenderingBehavior == DevelRenderer::Rendering::CONTINUOUSLY || mUpdateDecay > 0;
 125
 126   if(mUniformMapChangeCounter != mUniformMaps.GetChangeCounter())
 127   {
 128     // The map has changed since the last time we checked.
 129     rendererUpdated          = true;
 130     mRegenerateUniformMap    = true;
 131     mUpdateDecay             = Renderer::Decay::INITIAL; // Render at least twice if the map has changed/actor has been added
 132     mUniformMapChangeCounter = mUniformMaps.GetChangeCounter();
 133   }
 134   if(mUpdateDecay > 0)
 135   {
 136     mUpdateDecay = static_cast<Renderer::Decay>(static_cast<int>(mUpdateDecay) - 1);
 137   }
 138
 139   if(mResendFlag != 0)
 140   {
 141     if(mResendFlag & RESEND_GEOMETRY)
 142     {
 143       typedef MessageValue1<Render::Renderer, Render::Geometry*> DerivedType;
 144       uint32_t*                                                  slot = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 145       new(slot) DerivedType(mRenderer, &Render::Renderer::SetGeometry, mGeometry);
 146     }
 147
 148     if(mResendFlag & RESEND_DRAW_COMMANDS)
 149     {
 150       using DerivedType = MessageValue2<Render::Renderer, Dali::DevelRenderer::DrawCommand*, uint32_t>;
 151       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 152       new(slot) DerivedType(mRenderer, &Render::Renderer::SetDrawCommands, mDrawCommands.data(), mDrawCommands.size());
 153     }
 154
 155     if(mResendFlag & RESEND_FACE_CULLING_MODE)
 156     {
 157       using DerivedType = MessageValue1<Render::Renderer, FaceCullingMode::Type>;
 158       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 159       new(slot) DerivedType(mRenderer, &Render::Renderer::SetFaceCullingMode, mFaceCullingMode);
 160     }
 161
 162     if(mResendFlag & RESEND_BLEND_BIT_MASK)
 163     {
 164       using DerivedType = MessageValue1<Render::Renderer, uint32_t>;
 165       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 166       new(slot) DerivedType(mRenderer, &Render::Renderer::SetBlendingBitMask, mBlendBitmask);
 167     }
 168
 169     if(mResendFlag & RESEND_BLEND_COLOR)
 170     {
 171       using DerivedType = MessageValue1<Render::Renderer, Vector4>;
 172       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 173       new(slot) DerivedType(mRenderer, &Render::Renderer::SetBlendColor, GetBlendColor());
 174     }
 175
 176     if(mResendFlag & RESEND_PREMULTIPLIED_ALPHA)
 177     {
 178       using DerivedType = MessageValue1<Render::Renderer, bool>;
 179       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 180       new(slot) DerivedType(mRenderer, &Render::Renderer::EnablePreMultipliedAlpha, mPremultipledAlphaEnabled);
 181     }
 182
 183     if(mResendFlag & RESEND_INDEXED_DRAW_FIRST_ELEMENT)
 184     {
 185       using DerivedType = MessageValue1<Render::Renderer, uint32_t>;
 186       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 187       new(slot) DerivedType(mRenderer, &Render::Renderer::SetIndexedDrawFirstElement, mIndexedDrawFirstElement);
 188     }
 189
 190     if(mResendFlag & RESEND_INDEXED_DRAW_ELEMENTS_COUNT)
 191     {
 192       using DerivedType = MessageValue1<Render::Renderer, uint32_t>;
 193       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 194       new(slot) DerivedType(mRenderer, &Render::Renderer::SetIndexedDrawElementsCount, mIndexedDrawElementsCount);
 195     }
 196
 197     if(mResendFlag & RESEND_DEPTH_WRITE_MODE)
 198     {
 199       using DerivedType = MessageValue1<Render::Renderer, DepthWriteMode::Type>;
 200       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 201       new(slot) DerivedType(mRenderer, &Render::Renderer::SetDepthWriteMode, mDepthWriteMode);
 202     }
 203
 204     if(mResendFlag & RESEND_DEPTH_TEST_MODE)
 205     {
 206       using DerivedType = MessageValue1<Render::Renderer, DepthTestMode::Type>;
 207       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 208       new(slot) DerivedType(mRenderer, &Render::Renderer::SetDepthTestMode, mDepthTestMode);
 209     }
 210
 211     if(mResendFlag & RESEND_DEPTH_FUNCTION)
 212     {
 213       using DerivedType = MessageValue1<Render::Renderer, DepthFunction::Type>;
 214       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 215       new(slot) DerivedType(mRenderer, &Render::Renderer::SetDepthFunction, mDepthFunction);
 216     }
 217
 218     if(mResendFlag & RESEND_RENDER_MODE)
 219     {
 220       using DerivedType = MessageValue1<Render::Renderer, RenderMode::Type>;
 221       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 222       new(slot) DerivedType(mRenderer, &Render::Renderer::SetRenderMode, mStencilParameters.renderMode);
 223     }
 224
 225     if(mResendFlag & RESEND_STENCIL_FUNCTION)
 226     {
 227       using DerivedType = MessageValue1<Render::Renderer, StencilFunction::Type>;
 228       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 229       new(slot) DerivedType(mRenderer, &Render::Renderer::SetStencilFunction, mStencilParameters.stencilFunction);
 230     }
 231
 232     if(mResendFlag & RESEND_STENCIL_FUNCTION_MASK)
 233     {
 234       using DerivedType = MessageValue1<Render::Renderer, int>;
 235       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 236       new(slot) DerivedType(mRenderer, &Render::Renderer::SetStencilFunctionMask, mStencilParameters.stencilFunctionMask);
 237     }
 238
 239     if(mResendFlag & RESEND_STENCIL_FUNCTION_REFERENCE)
 240     {
 241       using DerivedType = MessageValue1<Render::Renderer, int>;
 242       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 243       new(slot) DerivedType(mRenderer, &Render::Renderer::SetStencilFunctionReference, mStencilParameters.stencilFunctionReference);
 244     }
 245
 246     if(mResendFlag & RESEND_STENCIL_MASK)
 247     {
 248       using DerivedType = MessageValue1<Render::Renderer, int>;
 249       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 250       new(slot) DerivedType(mRenderer, &Render::Renderer::SetStencilMask, mStencilParameters.stencilMask);
 251     }
 252
 253     if(mResendFlag & RESEND_STENCIL_OPERATION_ON_FAIL)
 254     {
 255       using DerivedType = MessageValue1<Render::Renderer, StencilOperation::Type>;
 256       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 257       new(slot) DerivedType(mRenderer, &Render::Renderer::SetStencilOperationOnFail, mStencilParameters.stencilOperationOnFail);
 258     }
 259
 260     if(mResendFlag & RESEND_STENCIL_OPERATION_ON_Z_FAIL)
 261     {
 262       using DerivedType = MessageValue1<Render::Renderer, StencilOperation::Type>;
 263       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 264       new(slot) DerivedType(mRenderer, &Render::Renderer::SetStencilOperationOnZFail, mStencilParameters.stencilOperationOnZFail);
 265     }
 266
 267     if(mResendFlag & RESEND_STENCIL_OPERATION_ON_Z_PASS)
 268     {
 269       using DerivedType = MessageValue1<Render::Renderer, StencilOperation::Type>;
 270       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 271       new(slot) DerivedType(mRenderer, &Render::Renderer::SetStencilOperationOnZPass, mStencilParameters.stencilOperationOnZPass);
 272     }
 273
 274     if(mResendFlag & RESEND_SHADER)
 275     {
 276       using DerivedType = MessageValue1<Render::Renderer, bool>;
 277       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 278       new(slot) DerivedType(mRenderer, &Render::Renderer::SetShaderChanged, true);
 279     }
 280
 281     if(mResendFlag & RESEND_SET_RENDER_CALLBACK)
 282     {
 283       using DerivedType = MessageValue1<Render::Renderer, Dali::RenderCallback*>;
 284       uint32_t* slot    = mSceneController->GetRenderQueue().ReserveMessageSlot(updateBufferIndex, sizeof(DerivedType));
 285       new(slot) DerivedType(mRenderer, &Render::Renderer::SetRenderCallback, mRenderCallback);
 286     }
 287
 288     mResendFlag = 0;
 289   }
 290
 291   return rendererUpdated;
 292 }
 293
 294 void Renderer::SetTextures(TextureSet* textureSet)
 295 {
 296   DALI_ASSERT_DEBUG(textureSet != NULL && "Texture set pointer is NULL");
 297
 298   mTextureSet = textureSet;
 299 }
 300
 301 const Vector<Render::Texture*>* Renderer::GetTextures() const
 302 {
 303   return mTextureSet ? &(mTextureSet->GetTextures()) : nullptr;
 304 }
 305
 306 const Vector<Render::Sampler*>* Renderer::GetSamplers() const
 307 {
 308   return mTextureSet ? &(mTextureSet->GetSamplers()) : nullptr;
 309 }
 310
 311 void Renderer::SetShader(Shader* shader)
 312 {
 313   DALI_ASSERT_DEBUG(shader != NULL && "Shader pointer is NULL");
 314
 315   if(mShader)
 316   {
 317     mShader->RemoveUniformMapObserver(*this);
 318   }
 319
 320   mShader = shader;
 321   mShader->AddUniformMapObserver(*this);
 322   mRegenerateUniformMap = true;
 323   mResendFlag |= RESEND_GEOMETRY | RESEND_SHADER;
 324 }
 325
 326 void Renderer::SetGeometry(Render::Geometry* geometry)
 327 {
 328   DALI_ASSERT_DEBUG(geometry != NULL && "Geometry pointer is NULL");
 329   mGeometry = geometry;
 330
 331   if(mRenderer)
 332   {
 333     mResendFlag |= RESEND_GEOMETRY;
 334   }
 335 }
 336
 337 void Renderer::SetDepthIndex(int depthIndex)
 338 {
 339   mDepthIndex = depthIndex;
 340 }
 341
 342 void Renderer::SetFaceCullingMode(FaceCullingMode::Type faceCullingMode)
 343 {
 344   mFaceCullingMode = faceCullingMode;
 345   mResendFlag |= RESEND_FACE_CULLING_MODE;
 346 }
 347
 348 FaceCullingMode::Type Renderer::GetFaceCullingMode() const
 349 {
 350   return mFaceCullingMode;
 351 }
 352
 353 void Renderer::SetBlendMode(BlendMode::Type blendingMode)
 354 {
 355   mBlendMode = blendingMode;
 356 }
 357
 358 BlendMode::Type Renderer::GetBlendMode() const
 359 {
 360   return mBlendMode;
 361 }
 362
 363 void Renderer::SetBlendingOptions(uint32_t options)
 364 {
 365   if(mBlendBitmask != options)
 366   {
 367     mBlendBitmask = options;
 368     mResendFlag |= RESEND_BLEND_BIT_MASK;
 369   }
 370 }
 371
 372 uint32_t Renderer::GetBlendingOptions() const
 373 {
 374   return mBlendBitmask;
 375 }
 376
 377 void Renderer::SetBlendColor(const Vector4& blendColor)
 378 {
 379   if(blendColor == Color::TRANSPARENT)
 380   {
 381     mBlendColor = nullptr;
 382   }
 383   else
 384   {
 385     if(!mBlendColor)
 386     {
 387       mBlendColor = new Vector4(blendColor);
 388     }
 389     else
 390     {
 391       *mBlendColor = blendColor;
 392     }
 393   }
 394
 395   mResendFlag |= RESEND_BLEND_COLOR;
 396 }
 397
 398 Vector4 Renderer::GetBlendColor() const
 399 {
 400   if(mBlendColor)
 401   {
 402     return *mBlendColor;
 403   }
 404   return Color::TRANSPARENT;
 405 }
 406
 407 void Renderer::SetIndexedDrawFirstElement(uint32_t firstElement)
 408 {
 409   mIndexedDrawFirstElement = firstElement;
 410   mResendFlag |= RESEND_INDEXED_DRAW_FIRST_ELEMENT;
 411 }
 412
 413 uint32_t Renderer::GetIndexedDrawFirstElement() const
 414 {
 415   return mIndexedDrawFirstElement;
 416 }
 417
 418 void Renderer::SetIndexedDrawElementsCount(uint32_t elementsCount)
 419 {
 420   mIndexedDrawElementsCount = elementsCount;
 421   mResendFlag |= RESEND_INDEXED_DRAW_ELEMENTS_COUNT;
 422 }
 423
 424 uint32_t Renderer::GetIndexedDrawElementsCount() const
 425 {
 426   return mIndexedDrawElementsCount;
 427 }
 428
 429 void Renderer::EnablePreMultipliedAlpha(bool preMultipled)
 430 {
 431   mPremultipledAlphaEnabled = preMultipled;
 432   mResendFlag |= RESEND_PREMULTIPLIED_ALPHA;
 433 }
 434
 435 bool Renderer::IsPreMultipliedAlphaEnabled() const
 436 {
 437   return mPremultipledAlphaEnabled;
 438 }
 439
 440 void Renderer::SetDepthWriteMode(DepthWriteMode::Type depthWriteMode)
 441 {
 442   mDepthWriteMode = depthWriteMode;
 443   mResendFlag |= RESEND_DEPTH_WRITE_MODE;
 444 }
 445
 446 DepthWriteMode::Type Renderer::GetDepthWriteMode() const
 447 {
 448   return mDepthWriteMode;
 449 }
 450
 451 void Renderer::SetDepthTestMode(DepthTestMode::Type depthTestMode)
 452 {
 453   mDepthTestMode = depthTestMode;
 454   mResendFlag |= RESEND_DEPTH_TEST_MODE;
 455 }
 456
 457 DepthTestMode::Type Renderer::GetDepthTestMode() const
 458 {
 459   return mDepthTestMode;
 460 }
 461
 462 void Renderer::SetDepthFunction(DepthFunction::Type depthFunction)
 463 {
 464   mDepthFunction = depthFunction;
 465   mResendFlag |= RESEND_DEPTH_FUNCTION;
 466 }
 467
 468 DepthFunction::Type Renderer::GetDepthFunction() const
 469 {
 470   return mDepthFunction;
 471 }
 472
 473 void Renderer::SetRenderMode(RenderMode::Type mode)
 474 {
 475   mStencilParameters.renderMode = mode;
 476   mResendFlag |= RESEND_RENDER_MODE;
 477 }
 478
 479 void Renderer::SetStencilFunction(StencilFunction::Type stencilFunction)
 480 {
 481   mStencilParameters.stencilFunction = stencilFunction;
 482   mResendFlag |= RESEND_STENCIL_FUNCTION;
 483 }
 484
 485 void Renderer::SetStencilFunctionMask(int stencilFunctionMask)
 486 {
 487   mStencilParameters.stencilFunctionMask = stencilFunctionMask;
 488   mResendFlag |= RESEND_STENCIL_FUNCTION_MASK;
 489 }
 490
 491 void Renderer::SetStencilFunctionReference(int stencilFunctionReference)
 492 {
 493   mStencilParameters.stencilFunctionReference = stencilFunctionReference;
 494   mResendFlag |= RESEND_STENCIL_FUNCTION_REFERENCE;
 495 }
 496
 497 void Renderer::SetStencilMask(int stencilMask)
 498 {
 499   mStencilParameters.stencilMask = stencilMask;
 500   mResendFlag |= RESEND_STENCIL_MASK;
 501 }
 502
 503 void Renderer::SetStencilOperationOnFail(StencilOperation::Type stencilOperationOnFail)
 504 {
 505   mStencilParameters.stencilOperationOnFail = stencilOperationOnFail;
 506   mResendFlag |= RESEND_STENCIL_OPERATION_ON_FAIL;
 507 }
 508
 509 void Renderer::SetStencilOperationOnZFail(StencilOperation::Type stencilOperationOnZFail)
 510 {
 511   mStencilParameters.stencilOperationOnZFail = stencilOperationOnZFail;
 512   mResendFlag |= RESEND_STENCIL_OPERATION_ON_Z_FAIL;
 513 }
 514
 515 void Renderer::SetStencilOperationOnZPass(StencilOperation::Type stencilOperationOnZPass)
 516 {
 517   mStencilParameters.stencilOperationOnZPass = stencilOperationOnZPass;
 518   mResendFlag |= RESEND_STENCIL_OPERATION_ON_Z_PASS;
 519 }
 520
 521 void Renderer::SetRenderCallback(RenderCallback* callback)
 522 {
 523   mRenderCallback = callback;
 524   mResendFlag |= RESEND_SET_RENDER_CALLBACK;
 525 }
 526
 527 const Render::Renderer::StencilParameters& Renderer::GetStencilParameters() const
 528 {
 529   return mStencilParameters;
 530 }
 531
 532 void Renderer::BakeOpacity(BufferIndex updateBufferIndex, float opacity)
 533 {
 534   mOpacity.Bake(updateBufferIndex, opacity);
 535 }
 536
 537 float Renderer::GetOpacity(BufferIndex updateBufferIndex) const
 538 {
 539   return mOpacity[updateBufferIndex];
 540 }
 541
 542 void Renderer::SetRenderingBehavior(DevelRenderer::Rendering::Type renderingBehavior)
 543 {
 544   mRenderingBehavior = renderingBehavior;
 545 }
 546
 547 DevelRenderer::Rendering::Type Renderer::GetRenderingBehavior() const
 548 {
 549   return mRenderingBehavior;
 550 }
 551
 552 //Called when SceneGraph::Renderer is added to update manager ( that happens when an "event-thread renderer" is created )
 553 void Renderer::ConnectToSceneGraph(SceneController& sceneController, BufferIndex bufferIndex)
 554 {
 555   mRegenerateUniformMap = true;
 556   mSceneController      = &sceneController;
 557
 558   mRenderer = Render::Renderer::New(this, mGeometry, mBlendBitmask, GetBlendColor(), static_cast<FaceCullingMode::Type>(mFaceCullingMode), mPremultipledAlphaEnabled, mDepthWriteMode, mDepthTestMode, mDepthFunction, mStencilParameters);
 559
 560   OwnerPointer<Render::Renderer> transferOwnership(mRenderer);
 561   mSceneController->GetRenderMessageDispatcher().AddRenderer(transferOwnership);
 562 }
 563
 564 //Called just before destroying the scene-graph renderer ( when the "event-thread renderer" is no longer referenced )
 565 void Renderer::DisconnectFromSceneGraph(SceneController& sceneController, BufferIndex bufferIndex)
 566 {
 567   //Remove renderer from RenderManager
 568   if(mRenderer)
 569   {
 570     mSceneController->GetRenderMessageDispatcher().RemoveRenderer(*mRenderer);
 571     mRenderer = nullptr;
 572   }
 573   mSceneController = nullptr;
 574 }
 575
 576 Render::Renderer& Renderer::GetRenderer()
 577 {
 578   return *mRenderer;
 579 }
 580
 581 Renderer::OpacityType Renderer::GetOpacityType(BufferIndex updateBufferIndex, const Node& node) const
 582 {
 583   Renderer::OpacityType opacityType = Renderer::OPAQUE;
 584
 585   if(node.IsTransparent())
 586   {
 587     return Renderer::TRANSPARENT;
 588   }
 589
 590   switch(mBlendMode)
 591   {
 592     case BlendMode::ON_WITHOUT_CULL: // If the renderer should always be use blending and never want to be transparent by alpha.
 593     {
 594       opacityType = Renderer::TRANSLUCENT;
 595       break;
 596     }
 597     case BlendMode::ON: // If the renderer should always be use blending
 598     {
 599       float alpha = node.GetWorldColor(updateBufferIndex).a * mOpacity[updateBufferIndex];
 600       if(alpha <= FULLY_TRANSPARENT)
 601       {
 602         opacityType = Renderer::TRANSPARENT;
 603       }
 604       else
 605       {
 606         opacityType = Renderer::TRANSLUCENT;
 607       }
 608       break;
 609     }
 610     case BlendMode::AUTO:
 611     {
 612       if(BlendingOptions::IsAdvancedBlendEquationIncluded(mBlendBitmask))
 613       {
 614         opacityType = Renderer::TRANSLUCENT;
 615         break;
 616       }
 617
 618       bool shaderRequiresBlending(mShader->HintEnabled(Dali::Shader::Hint::OUTPUT_IS_TRANSPARENT));
 619       if(shaderRequiresBlending || (mTextureSet && mTextureSet->HasAlpha()))
 620       {
 621         opacityType = Renderer::TRANSLUCENT;
 622       }
 623
 624       // renderer should determine opacity using the actor color
 625       float alpha = node.GetWorldColor(updateBufferIndex).a * mOpacity[updateBufferIndex];
 626       if(alpha <= FULLY_TRANSPARENT)
 627       {
 628         opacityType = Renderer::TRANSPARENT;
 629       }
 630       else if(alpha <= FULLY_OPAQUE)
 631       {
 632         opacityType = Renderer::TRANSLUCENT;
 633       }
 634
 635       break;
 636     }
 637     case BlendMode::OFF: // the renderer should never use blending
 638     default:
 639     {
 640       opacityType = Renderer::OPAQUE;
 641       break;
 642     }
 643   }
 644
 645   return opacityType;
 646 }
 647
 648 bool Renderer::UpdateUniformMap()
 649 {
 650   bool updated = false;
 651
 652   if(mRegenerateUniformMap)
 653   {
 654     CollectedUniformMap& localMap = mCollectedUniformMap;
 655     localMap.Clear();
 656
 657     const UniformMap& rendererUniformMap = PropertyOwner::GetUniformMap();
 658
 659     auto size = rendererUniformMap.Count();
 660     if(mShader)
 661     {
 662       size += mShader->GetUniformMap().Count();
 663     }
 664
 665     localMap.Reserve(size);
 666     localMap.AddMappings(rendererUniformMap);
 667     if(mShader)
 668     {
 669       localMap.AddMappings(mShader->GetUniformMap());
 670     }
 671     localMap.UpdateChangeCounter();
 672     mRegenerateUniformMap = false;
 673     updated               = true;
 674   }
 675   return updated;
 676 }
 677
 678 void Renderer::SetDrawCommands(Dali::DevelRenderer::DrawCommand* pDrawCommands, uint32_t size)
 679 {
 680   mDrawCommands.clear();
 681   mDrawCommands.insert(mDrawCommands.end(), pDrawCommands, pDrawCommands + size);
 682   mResendFlag |= RESEND_DRAW_COMMANDS;
 683 }
 684
 685 void Renderer::UniformMappingsChanged(const UniformMap& mappings)
 686 {
 687   // The mappings are either from PropertyOwner base class, or the Shader
 688   mRegenerateUniformMap = true; // Should remain true until this renderer is added to a RenderList.
 689 }
 690
 691 const CollectedUniformMap& Renderer::GetCollectedUniformMap() const
 692 {
 693   return mCollectedUniformMap;
 694 }
 695
 696 } // namespace SceneGraph
 697 } // namespace Internal
 698 } // namespace Dali