dali-toolkit/internal/texture-manager/texture-manager-impl.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
  18 // CLASS HEADER
  19 #include <dali-toolkit/internal/texture-manager/texture-manager-impl.h>
  20
  21 // EXTERNAL HEADERS
  22 #include <dali/devel-api/adaptor-framework/environment-variable.h>
  23 #include <dali/devel-api/adaptor-framework/image-loading.h>
  24 #include <dali/devel-api/adaptor-framework/pixel-buffer.h>
  25 #include <dali/integration-api/adaptor-framework/adaptor.h>
  26 #include <dali/integration-api/debug.h>
  27 #include <dali/public-api/rendering/geometry.h>
  28
  29 // INTERNAL HEADERS
  30 #include <dali-toolkit/internal/texture-manager/texture-async-loading-helper.h>
  31 #include <dali-toolkit/internal/texture-manager/texture-cache-manager.h>
  32 #include <dali-toolkit/internal/visuals/image-atlas-manager.h>
  33 #include <dali-toolkit/internal/visuals/rendering-addon.h>
  34
  35 namespace
  36 {
  37 constexpr auto INITIAL_HASH_NUMBER = size_t{0u};
  38
  39 constexpr auto TEXTURE_INDEX      = 0u; ///< The Index for texture
  40 constexpr auto MASK_TEXTURE_INDEX = 1u; ///< The Index for mask texture
  41
  42 constexpr auto NUMBER_OF_LOCAL_LOADER_THREADS_ENV  = "DALI_TEXTURE_LOCAL_THREADS";
  43 constexpr auto NUMBER_OF_REMOTE_LOADER_THREADS_ENV = "DALI_TEXTURE_REMOTE_THREADS";
  44 constexpr auto LOAD_IMAGE_YUV_PLANES_ENV           = "DALI_LOAD_IMAGE_YUV_PLANES";
  45
  46 bool NeedToLoadYuvPlanes()
  47 {
  48   auto loadYuvPlanesString = Dali::EnvironmentVariable::GetEnvironmentVariable(LOAD_IMAGE_YUV_PLANES_ENV);
  49   bool loadYuvPlanes       = loadYuvPlanesString ? std::atoi(loadYuvPlanesString) : false;
  50   return loadYuvPlanes;
  51 }
  52 } // namespace
  53
  54 namespace Dali
  55 {
  56 namespace Toolkit
  57 {
  58 namespace Internal
  59 {
  60 #ifdef DEBUG_ENABLED
  61 // Define logfilter Internal namespace level so other files (e.g. texture-cache-manager.cpp) can also use this filter.
  62 Debug::Filter* gTextureManagerLogFilter = Debug::Filter::New(Debug::NoLogging, false, "LOG_TEXTURE_MANAGER");
  63
  64 // clang-format off
  65 #define GET_LOAD_STATE_STRING(loadState) \
  66   loadState == TextureManagerType::LoadState::NOT_STARTED      ? "NOT_STARTED"      : \
  67   loadState == TextureManagerType::LoadState::LOADING          ? "LOADING"          : \
  68   loadState == TextureManagerType::LoadState::LOAD_FINISHED    ? "LOAD_FINISHED"    : \
  69   loadState == TextureManagerType::LoadState::WAITING_FOR_MASK ? "WAITING_FOR_MASK" : \
  70   loadState == TextureManagerType::LoadState::MASK_APPLYING    ? "MASK_APPLYING"    : \
  71   loadState == TextureManagerType::LoadState::MASK_APPLIED     ? "MASK_APPLIED"     : \
  72   loadState == TextureManagerType::LoadState::UPLOADED         ? "UPLOADED"         : \
  73   loadState == TextureManagerType::LoadState::CANCELLED        ? "CANCELLED"        : \
  74   loadState == TextureManagerType::LoadState::MASK_CANCELLED   ? "MASK_CANCELLED"   : \
  75   loadState == TextureManagerType::LoadState::LOAD_FAILED      ? "LOAD_FAILED"      : \
  76                                                                  "Unknown"
  77 // clang-format on
  78 #endif
  79
  80 namespace
  81 {
  82 const uint32_t DEFAULT_ATLAS_SIZE(1024u);               ///< This size can fit 8 by 8 images of average size 128 * 128
  83 const Vector4  FULL_ATLAS_RECT(0.0f, 0.0f, 1.0f, 1.0f); ///< UV Rectangle that covers the full Texture
  84
  85 void PreMultiply(Devel::PixelBuffer pixelBuffer, TextureManager::MultiplyOnLoad& preMultiplyOnLoad)
  86 {
  87   if(Pixel::HasAlpha(pixelBuffer.GetPixelFormat()))
  88   {
  89     if(preMultiplyOnLoad == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD)
  90     {
  91       pixelBuffer.MultiplyColorByAlpha();
  92     }
  93   }
  94   else
  95   {
  96     preMultiplyOnLoad = TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
  97   }
  98 }
  99
 100 } // Anonymous namespace
 101
 102 TextureManager::MaskingData::MaskingData()
 103 : mAlphaMaskUrl(),
 104   mAlphaMaskId(INVALID_TEXTURE_ID),
 105   mContentScaleFactor(1.0f),
 106   mCropToMask(true),
 107   mPreappliedMasking(true),
 108   mMaskImageLoadingFailed(false)
 109 {
 110 }
 111
 112 TextureManager::TextureManager()
 113 : mTextureCacheManager(),
 114   mAsyncLoader(std::unique_ptr<TextureAsyncLoadingHelper>(new TextureAsyncLoadingHelper(*this))),
 115   mLifecycleObservers(),
 116   mLoadQueue(),
 117   mLoadingQueueTextureId(INVALID_TEXTURE_ID),
 118   mRemoveQueue(),
 119   mLoadYuvPlanes(NeedToLoadYuvPlanes()),
 120   mRemoveProcessorRegistered(false)
 121 {
 122   // Initialize the AddOn
 123   RenderingAddOn::Get();
 124 }
 125
 126 TextureManager::~TextureManager()
 127 {
 128   if(mRemoveProcessorRegistered && Adaptor::IsAvailable())
 129   {
 130     Adaptor::Get().UnregisterProcessor(*this, true);
 131     mRemoveProcessorRegistered = false;
 132   }
 133
 134   for(auto iter = mLifecycleObservers.Begin(), endIter = mLifecycleObservers.End(); iter != endIter; ++iter)
 135   {
 136     (*iter)->TextureManagerDestroyed();
 137   }
 138 }
 139
 140 TextureSet TextureManager::LoadAnimatedImageTexture(
 141   const VisualUrl&                url,
 142   Dali::AnimatedImageLoading      animatedImageLoading,
 143   const uint32_t&                 frameIndex,
 144   TextureManager::TextureId&      textureId,
 145   MaskingDataPointer&             maskInfo,
 146   const Dali::ImageDimensions&    desiredSize,
 147   const Dali::FittingMode::Type&  fittingMode,
 148   const Dali::SamplingMode::Type& samplingMode,
 149   const bool&                     synchronousLoading,
 150   TextureUploadObserver*          textureObserver,
 151   TextureManager::MultiplyOnLoad& preMultiplyOnLoad)
 152 {
 153   TextureSet textureSet;
 154
 155   if(synchronousLoading)
 156   {
 157     Devel::PixelBuffer pixelBuffer;
 158     if(animatedImageLoading)
 159     {
 160       pixelBuffer = animatedImageLoading.LoadFrame(frameIndex, desiredSize, fittingMode, samplingMode);
 161     }
 162     if(!pixelBuffer)
 163     {
 164       DALI_LOG_ERROR("TextureManager::LoadAnimatedImageTexture: Synchronous loading is failed\n");
 165     }
 166     else
 167     {
 168       Texture maskTexture;
 169       if(maskInfo && maskInfo->mAlphaMaskUrl.IsValid())
 170       {
 171         Devel::PixelBuffer maskPixelBuffer = LoadImageFromFile(maskInfo->mAlphaMaskUrl.GetUrl(), desiredSize, fittingMode, samplingMode, true);
 172         if(maskPixelBuffer)
 173         {
 174           if(!maskInfo->mPreappliedMasking)
 175           {
 176             PixelData maskPixelData = Devel::PixelBuffer::Convert(maskPixelBuffer); // takes ownership of buffer
 177             maskTexture             = Texture::New(Dali::TextureType::TEXTURE_2D, maskPixelData.GetPixelFormat(), maskPixelData.GetWidth(), maskPixelData.GetHeight());
 178             maskTexture.Upload(maskPixelData);
 179           }
 180           else
 181           {
 182             pixelBuffer.ApplyMask(maskPixelBuffer, maskInfo->mContentScaleFactor, maskInfo->mCropToMask);
 183           }
 184         }
 185         else
 186         {
 187           DALI_LOG_ERROR("TextureManager::LoadAnimatedImageTexture: Synchronous mask image loading is failed\n");
 188         }
 189       }
 190
 191       if(preMultiplyOnLoad == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD)
 192       {
 193         PreMultiply(pixelBuffer, preMultiplyOnLoad);
 194       }
 195
 196       PixelData pixelData = Devel::PixelBuffer::Convert(pixelBuffer); // takes ownership of buffer
 197       if(!textureSet)
 198       {
 199         Texture texture = Texture::New(Dali::TextureType::TEXTURE_2D, pixelData.GetPixelFormat(), pixelData.GetWidth(), pixelData.GetHeight());
 200         texture.Upload(pixelData);
 201         textureSet = TextureSet::New();
 202         textureSet.SetTexture(TEXTURE_INDEX, texture);
 203         if(maskTexture)
 204         {
 205           textureSet.SetTexture(MASK_TEXTURE_INDEX, maskTexture);
 206         }
 207       }
 208     }
 209   }
 210   else
 211   {
 212     TextureId alphaMaskId        = INVALID_TEXTURE_ID;
 213     float     contentScaleFactor = 1.0f;
 214     bool      cropToMask         = false;
 215     if(maskInfo && maskInfo->mAlphaMaskUrl.IsValid())
 216     {
 217       maskInfo->mAlphaMaskId = RequestMaskLoad(maskInfo->mAlphaMaskUrl, maskInfo->mPreappliedMasking ? StorageType::KEEP_PIXEL_BUFFER : StorageType::KEEP_TEXTURE);
 218       alphaMaskId            = maskInfo->mAlphaMaskId;
 219       if(maskInfo->mPreappliedMasking)
 220       {
 221         contentScaleFactor = maskInfo->mContentScaleFactor;
 222         cropToMask         = maskInfo->mCropToMask;
 223       }
 224     }
 225
 226     textureId = RequestLoadInternal(url, alphaMaskId, textureId, contentScaleFactor, desiredSize, fittingMode, samplingMode, UseAtlas::NO_ATLAS, cropToMask, StorageType::UPLOAD_TO_TEXTURE, textureObserver, true, TextureManager::ReloadPolicy::CACHED, preMultiplyOnLoad, animatedImageLoading, frameIndex, false);
 227
 228     TextureManager::LoadState loadState = mTextureCacheManager.GetTextureStateInternal(textureId);
 229     if(loadState == TextureManager::LoadState::UPLOADED)
 230     {
 231       // LoadComplete has already been called - keep the same texture set
 232       textureSet = GetTextureSet(textureId);
 233     }
 234   }
 235
 236   return textureSet;
 237 }
 238
 239 Devel::PixelBuffer TextureManager::LoadPixelBuffer(
 240   const VisualUrl&                url,
 241   const Dali::ImageDimensions&    desiredSize,
 242   const Dali::FittingMode::Type&  fittingMode,
 243   const Dali::SamplingMode::Type& samplingMode,
 244   const bool&                     synchronousLoading,
 245   TextureUploadObserver*          textureObserver,
 246   const bool&                     orientationCorrection,
 247   TextureManager::MultiplyOnLoad& preMultiplyOnLoad)
 248 {
 249   Devel::PixelBuffer pixelBuffer;
 250   if(synchronousLoading)
 251   {
 252     if(url.IsValid())
 253     {
 254       if(url.IsBufferResource())
 255       {
 256         const EncodedImageBuffer& encodedImageBuffer = mTextureCacheManager.GetEncodedImageBuffer(url);
 257         if(encodedImageBuffer)
 258         {
 259           pixelBuffer = LoadImageFromBuffer(encodedImageBuffer.GetRawBuffer(), desiredSize, fittingMode, samplingMode, orientationCorrection);
 260         }
 261       }
 262       else
 263       {
 264         pixelBuffer = LoadImageFromFile(url.GetUrl(), desiredSize, fittingMode, samplingMode, orientationCorrection);
 265       }
 266       if(pixelBuffer && preMultiplyOnLoad == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD)
 267       {
 268         PreMultiply(pixelBuffer, preMultiplyOnLoad);
 269       }
 270     }
 271   }
 272   else
 273   {
 274     RequestLoadInternal(url, INVALID_TEXTURE_ID, INVALID_TEXTURE_ID, 1.0f, desiredSize, fittingMode, samplingMode, UseAtlas::NO_ATLAS, false, StorageType::RETURN_PIXEL_BUFFER, textureObserver, orientationCorrection, TextureManager::ReloadPolicy::FORCED, preMultiplyOnLoad, Dali::AnimatedImageLoading(), 0u, false);
 275   }
 276
 277   return pixelBuffer;
 278 }
 279
 280 TextureSet TextureManager::LoadTexture(
 281   const VisualUrl&                    url,
 282   const Dali::ImageDimensions&        desiredSize,
 283   const Dali::FittingMode::Type&      fittingMode,
 284   const Dali::SamplingMode::Type&     samplingMode,
 285   MaskingDataPointer&                 maskInfo,
 286   const bool&                         synchronousLoading,
 287   TextureManager::TextureId&          textureId,
 288   Vector4&                            textureRect,
 289   Dali::ImageDimensions&              textureRectSize,
 290   bool&                               atlasingStatus,
 291   bool&                               loadingStatus,
 292   TextureUploadObserver*              textureObserver,
 293   AtlasUploadObserver*                atlasObserver,
 294   ImageAtlasManagerPtr                imageAtlasManager,
 295   const bool&                         orientationCorrection,
 296   const TextureManager::ReloadPolicy& reloadPolicy,
 297   TextureManager::MultiplyOnLoad&     preMultiplyOnLoad)
 298 {
 299   TextureSet textureSet;
 300
 301   loadingStatus = false;
 302   textureRect   = FULL_ATLAS_RECT;
 303
 304   if(VisualUrl::TEXTURE == url.GetProtocolType())
 305   {
 306     std::string location = url.GetLocation();
 307     if(location.size() > 0u)
 308     {
 309       TextureId id                  = std::stoi(location);
 310       auto      externalTextureInfo = mTextureCacheManager.GetExternalTextureInfo(id);
 311       if(externalTextureInfo.textureSet)
 312       {
 313         if(preMultiplyOnLoad == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD)
 314         {
 315           // Change preMultiplyOnLoad value so make caller determine to preMultiplyAlpha or not.
 316           // TODO : Should we seperate input and output value?
 317           preMultiplyOnLoad = externalTextureInfo.preMultiplied ? TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD : TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
 318         }
 319
 320         TextureId alphaMaskId = INVALID_TEXTURE_ID;
 321         if(maskInfo && maskInfo->mAlphaMaskUrl.IsValid())
 322         {
 323           maskInfo->mAlphaMaskId = RequestMaskLoad(maskInfo->mAlphaMaskUrl, StorageType::KEEP_TEXTURE, synchronousLoading);
 324           alphaMaskId            = maskInfo->mAlphaMaskId;
 325
 326           // Create new textureId. this textureId is not same as location
 327           textureId = RequestLoad(url, alphaMaskId, textureId, 1.0f, desiredSize, fittingMode, samplingMode, UseAtlas::NO_ATLAS, false, textureObserver, orientationCorrection, reloadPolicy, preMultiplyOnLoad, synchronousLoading);
 328
 329           TextureManager::LoadState loadState = mTextureCacheManager.GetTextureStateInternal(textureId);
 330           if(loadState == TextureManager::LoadState::UPLOADED)
 331           {
 332             textureSet = GetTextureSet(textureId);
 333           }
 334         }
 335         else
 336         {
 337           // TextureId is same as location
 338           textureId = id;
 339
 340           textureSet = TextureSet::New();
 341           textureSet.SetTexture(TEXTURE_INDEX, externalTextureInfo.textureSet.GetTexture(TEXTURE_INDEX));
 342         }
 343       }
 344     }
 345   }
 346   else
 347   {
 348     // For Atlas
 349     if(synchronousLoading && atlasingStatus)
 350     {
 351       const bool synchronousAtlasAvaliable = (desiredSize != ImageDimensions() || url.IsLocalResource()) ? imageAtlasManager->CheckAtlasAvailable(url, desiredSize)
 352                                                                                                          : false;
 353       if(synchronousAtlasAvaliable)
 354       {
 355         std::vector<Devel::PixelBuffer> pixelBuffers;
 356         LoadImageSynchronously(url, desiredSize, fittingMode, samplingMode, orientationCorrection, false, pixelBuffers);
 357
 358         if(!pixelBuffers.empty() && maskInfo && maskInfo->mAlphaMaskUrl.IsValid())
 359         {
 360           std::vector<Devel::PixelBuffer> maskPixelBuffers;
 361           LoadImageSynchronously(maskInfo->mAlphaMaskUrl, ImageDimensions(), FittingMode::SCALE_TO_FILL, SamplingMode::NO_FILTER, true, false, maskPixelBuffers);
 362           if(!maskPixelBuffers.empty())
 363           {
 364             pixelBuffers[0].ApplyMask(maskPixelBuffers[0], maskInfo->mContentScaleFactor, maskInfo->mCropToMask);
 365           }
 366         }
 367
 368         PixelData data;
 369         if(!pixelBuffers.empty())
 370         {
 371           PreMultiply(pixelBuffers[0], preMultiplyOnLoad);
 372           data = Devel::PixelBuffer::Convert(pixelBuffers[0]); // takes ownership of buffer
 373
 374           if(data)
 375           {
 376             textureSet = imageAtlasManager->Add(textureRect, data);
 377             if(textureSet)
 378             {
 379               textureRectSize.SetWidth(data.GetWidth());
 380               textureRectSize.SetHeight(data.GetHeight());
 381             }
 382           }
 383           else
 384           {
 385             DALI_LOG_ERROR("TextureManager::LoadTexture: Synchronous Texture loading with atlasing is failed.\n");
 386           }
 387         }
 388         if(!textureSet)
 389         {
 390           atlasingStatus = false;
 391         }
 392       }
 393     }
 394
 395     if(!textureSet)
 396     {
 397       loadingStatus = true;
 398       // Atlas manager can chage desired size when it is set by 0,0.
 399       // We should store into textureRectSize only if atlasing successed.
 400       // So copy inputed desiredSize, and replace value into textureRectSize only if atlasing success.
 401       Dali::ImageDimensions atlasDesiredSize = desiredSize;
 402       if(atlasingStatus)
 403       {
 404         if(url.IsBufferResource())
 405         {
 406           const EncodedImageBuffer& encodedImageBuffer = GetEncodedImageBuffer(url.GetUrl());
 407           if(encodedImageBuffer)
 408           {
 409             textureSet = imageAtlasManager->Add(textureRect, encodedImageBuffer, desiredSize, fittingMode, true, atlasObserver);
 410           }
 411         }
 412         else
 413         {
 414           textureSet = imageAtlasManager->Add(textureRect, url, atlasDesiredSize, fittingMode, true, atlasObserver);
 415         }
 416       }
 417       if(!textureSet) // big image, no atlasing or atlasing failed
 418       {
 419         atlasingStatus = false;
 420
 421         TextureId alphaMaskId        = INVALID_TEXTURE_ID;
 422         float     contentScaleFactor = 1.0f;
 423         bool      cropToMask         = false;
 424         if(maskInfo && maskInfo->mAlphaMaskUrl.IsValid())
 425         {
 426           maskInfo->mAlphaMaskId = RequestMaskLoad(maskInfo->mAlphaMaskUrl, maskInfo->mPreappliedMasking ? StorageType::KEEP_PIXEL_BUFFER : StorageType::KEEP_TEXTURE, synchronousLoading);
 427           alphaMaskId            = maskInfo->mAlphaMaskId;
 428           if(maskInfo && maskInfo->mPreappliedMasking)
 429           {
 430             contentScaleFactor = maskInfo->mContentScaleFactor;
 431             cropToMask         = maskInfo->mCropToMask;
 432           }
 433         }
 434
 435         textureId = RequestLoad(
 436           url,
 437           alphaMaskId,
 438           textureId,
 439           contentScaleFactor,
 440           desiredSize,
 441           fittingMode,
 442           samplingMode,
 443           UseAtlas::NO_ATLAS,
 444           cropToMask,
 445           textureObserver,
 446           orientationCorrection,
 447           reloadPolicy,
 448           preMultiplyOnLoad,
 449           synchronousLoading);
 450
 451         TextureManager::LoadState loadState = mTextureCacheManager.GetTextureStateInternal(textureId);
 452         if(loadState == TextureManager::LoadState::UPLOADED)
 453         {
 454           // LoadComplete has already been called - keep the same texture set
 455           textureSet = GetTextureSet(textureId);
 456         }
 457
 458         // If we are loading the texture, or waiting for the ready signal handler to complete, inform
 459         // caller that they need to wait.
 460         loadingStatus = (loadState == TextureManager::LoadState::LOADING ||
 461                          loadState == TextureManager::LoadState::WAITING_FOR_MASK ||
 462                          loadState == TextureManager::LoadState::MASK_APPLYING ||
 463                          loadState == TextureManager::LoadState::MASK_APPLIED ||
 464                          loadState == TextureManager::LoadState::NOT_STARTED ||
 465                          mLoadingQueueTextureId != INVALID_TEXTURE_ID);
 466       }
 467       else
 468       {
 469         textureRectSize = atlasDesiredSize;
 470       }
 471     }
 472   }
 473
 474   if(synchronousLoading)
 475   {
 476     loadingStatus = false;
 477   }
 478
 479   return textureSet;
 480 }
 481
 482 TextureManager::TextureId TextureManager::RequestLoad(
 483   const VisualUrl&                    url,
 484   const ImageDimensions&              desiredSize,
 485   const Dali::FittingMode::Type&      fittingMode,
 486   const Dali::SamplingMode::Type&     samplingMode,
 487   const UseAtlas&                     useAtlas,
 488   TextureUploadObserver*              observer,
 489   const bool&                         orientationCorrection,
 490   const TextureManager::ReloadPolicy& reloadPolicy,
 491   TextureManager::MultiplyOnLoad&     preMultiplyOnLoad,
 492   const bool&                         synchronousLoading)
 493 {
 494   return RequestLoadInternal(url, INVALID_TEXTURE_ID, INVALID_TEXTURE_ID, 1.0f, desiredSize, fittingMode, samplingMode, useAtlas, false, StorageType::UPLOAD_TO_TEXTURE, observer, orientationCorrection, reloadPolicy, preMultiplyOnLoad, Dali::AnimatedImageLoading(), 0u, synchronousLoading);
 495 }
 496
 497 TextureManager::TextureId TextureManager::RequestLoad(
 498   const VisualUrl&                    url,
 499   const TextureManager::TextureId&    maskTextureId,
 500   const TextureManager::TextureId&    previousTextureId,
 501   const float&                        contentScale,
 502   const Dali::ImageDimensions&        desiredSize,
 503   const Dali::FittingMode::Type&      fittingMode,
 504   const Dali::SamplingMode::Type&     samplingMode,
 505   const TextureManager::UseAtlas&     useAtlas,
 506   const bool&                         cropToMask,
 507   TextureUploadObserver*              observer,
 508   const bool&                         orientationCorrection,
 509   const TextureManager::ReloadPolicy& reloadPolicy,
 510   TextureManager::MultiplyOnLoad&     preMultiplyOnLoad,
 511   const bool&                         synchronousLoading)
 512 {
 513   return RequestLoadInternal(url, maskTextureId, previousTextureId, contentScale, desiredSize, fittingMode, samplingMode, useAtlas, cropToMask, StorageType::UPLOAD_TO_TEXTURE, observer, orientationCorrection, reloadPolicy, preMultiplyOnLoad, Dali::AnimatedImageLoading(), 0u, synchronousLoading);
 514 }
 515
 516 TextureManager::TextureId TextureManager::RequestMaskLoad(
 517   const VisualUrl& maskUrl,
 518   StorageType      storageType,
 519   const bool&      synchronousLoading)
 520 {
 521   // Use the normal load procedure to get the alpha mask.
 522   auto preMultiply = TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
 523   return RequestLoadInternal(maskUrl, INVALID_TEXTURE_ID, INVALID_TEXTURE_ID, 1.0f, ImageDimensions(), FittingMode::SCALE_TO_FILL, SamplingMode::NO_FILTER, UseAtlas::NO_ATLAS, false, storageType, NULL, true, TextureManager::ReloadPolicy::CACHED, preMultiply, Dali::AnimatedImageLoading(), 0u, synchronousLoading);
 524 }
 525
 526 TextureManager::TextureId TextureManager::RequestLoadInternal(
 527   const VisualUrl&                    url,
 528   const TextureManager::TextureId&    maskTextureId,
 529   const TextureManager::TextureId&    previousTextureId,
 530   const float&                        contentScale,
 531   const Dali::ImageDimensions&        desiredSize,
 532   const Dali::FittingMode::Type&      fittingMode,
 533   const Dali::SamplingMode::Type&     samplingMode,
 534   const TextureManager::UseAtlas&     useAtlas,
 535   const bool&                         cropToMask,
 536   const TextureManager::StorageType&  storageType,
 537   TextureUploadObserver*              observer,
 538   const bool&                         orientationCorrection,
 539   const TextureManager::ReloadPolicy& reloadPolicy,
 540   TextureManager::MultiplyOnLoad&     preMultiplyOnLoad,
 541   Dali::AnimatedImageLoading          animatedImageLoading,
 542   const std::uint32_t&                frameIndex,
 543   const bool&                         synchronousLoading)
 544 {
 545   TextureHash       textureHash   = INITIAL_HASH_NUMBER;
 546   TextureCacheIndex cacheIndex    = INVALID_CACHE_INDEX;
 547   bool              loadYuvPlanes = (mLoadYuvPlanes && maskTextureId == INVALID_TEXTURE_ID && storageType == StorageType::UPLOAD_TO_TEXTURE);
 548
 549   if(storageType != StorageType::RETURN_PIXEL_BUFFER)
 550   {
 551     textureHash = mTextureCacheManager.GenerateHash(url, desiredSize, fittingMode, samplingMode, useAtlas, maskTextureId, cropToMask, frameIndex);
 552
 553     // Look up the texture by hash. Note: The extra parameters are used in case of a hash collision.
 554     cacheIndex = mTextureCacheManager.FindCachedTexture(textureHash, url, desiredSize, fittingMode, samplingMode, useAtlas, storageType, maskTextureId, cropToMask, preMultiplyOnLoad, (animatedImageLoading) ? true : false, frameIndex);
 555   }
 556
 557   TextureManager::TextureId textureId = INVALID_TEXTURE_ID;
 558   // Check if the requested Texture exists in the cache.
 559   if(cacheIndex != INVALID_CACHE_INDEX)
 560   {
 561     if(TextureManager::ReloadPolicy::CACHED == reloadPolicy || TextureManager::INVALID_TEXTURE_ID == previousTextureId)
 562     {
 563       // Mark this texture being used by another client resource, or Reload forced without request load before.
 564       // Forced reload which have current texture before, would replace the current texture.
 565       // without the need for incrementing the reference count.
 566       ++(mTextureCacheManager[cacheIndex].referenceCount);
 567     }
 568     textureId = mTextureCacheManager[cacheIndex].textureId;
 569
 570     // Update preMultiplyOnLoad value. It should be changed according to preMultiplied value of the cached info.
 571     preMultiplyOnLoad = mTextureCacheManager[cacheIndex].preMultiplied ? TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD : TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
 572     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::General, "TextureManager::RequestLoad( url=%s observer=%p ) Using cached texture id@%d, textureId=%d, maskTextureId=%d, prevTextureId=%d, frameindex=%d, premultiplied=%d, refCount=%d\n", url.GetUrl().c_str(), observer, cacheIndex.GetIndex(), textureId, maskTextureId, previousTextureId, frameIndex, mTextureCacheManager[cacheIndex].preMultiplied ? 1 : 0, static_cast<int>(mTextureCacheManager[cacheIndex].referenceCount));
 573   }
 574
 575   if(textureId == INVALID_TEXTURE_ID) // There was no caching, or caching not required
 576   {
 577     textureId = mTextureCacheManager.GenerateTextureId();
 578
 579     bool preMultiply = (preMultiplyOnLoad == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD);
 580
 581     // Cache new texutre, and get cacheIndex.
 582     cacheIndex = mTextureCacheManager.AppendCache(TextureInfo(textureId, maskTextureId, url, desiredSize, contentScale, fittingMode, samplingMode, false, cropToMask, useAtlas, textureHash, orientationCorrection, preMultiply, animatedImageLoading, frameIndex, loadYuvPlanes));
 583     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::General, "TextureManager::RequestLoad( url=%s observer=%p ) New texture, cacheIndex:%d, textureId=%d, maskTextureId=%d, frameindex=%d premultiply=%d\n", url.GetUrl().c_str(), observer, cacheIndex.GetIndex(), textureId, maskTextureId, frameIndex, preMultiply);
 584   }
 585
 586   // The below code path is common whether we are using the cache or not.
 587   // The textureInfoIndex now refers to either a pre-existing cached TextureInfo,
 588   // or a new TextureInfo just created.
 589   TextureInfo& textureInfo(mTextureCacheManager[cacheIndex]);
 590   textureInfo.maskTextureId         = maskTextureId;
 591   textureInfo.storageType           = storageType;
 592   textureInfo.orientationCorrection = orientationCorrection;
 593
 594   // the case using external texture has already been loaded texture, so change its status to WAITING_FOR_MASK.
 595   if(url.GetProtocolType() == VisualUrl::TEXTURE)
 596   {
 597     if(textureInfo.loadState != LoadState::UPLOADED)
 598     {
 599       textureInfo.loadState = TextureManager::LoadState::WAITING_FOR_MASK;
 600     }
 601   }
 602
 603   DALI_LOG_INFO(gTextureManagerLogFilter, Debug::General, "TextureInfo loadState:%s\n", GET_LOAD_STATE_STRING(textureInfo.loadState));
 604
 605   // Force reloading of texture by setting loadState unless already loading or cancelled.
 606   if(TextureManager::ReloadPolicy::FORCED == reloadPolicy &&
 607      TextureManager::LoadState::LOADING != textureInfo.loadState &&
 608      TextureManager::LoadState::WAITING_FOR_MASK != textureInfo.loadState &&
 609      TextureManager::LoadState::MASK_APPLYING != textureInfo.loadState &&
 610      TextureManager::LoadState::MASK_APPLIED != textureInfo.loadState &&
 611      TextureManager::LoadState::CANCELLED != textureInfo.loadState &&
 612      TextureManager::LoadState::MASK_CANCELLED != textureInfo.loadState)
 613   {
 614     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Verbose, "TextureManager::RequestLoad( url=%s observer=%p ) ForcedReload cacheIndex:%d, textureId=%d, maskTextureId=%d, prevTextureId=%d\n", url.GetUrl().c_str(), observer, cacheIndex.GetIndex(), textureId, maskTextureId, previousTextureId);
 615     textureInfo.loadState = TextureManager::LoadState::NOT_STARTED;
 616   }
 617
 618   if(!synchronousLoading)
 619   {
 620     // Check if we should add the observer.
 621     // Only do this if we have not loaded yet and it will not have loaded by the end of this method.
 622     switch(textureInfo.loadState)
 623     {
 624       case TextureManager::LoadState::LOAD_FAILED: // Failed notifies observer which then stops observing.
 625       case TextureManager::LoadState::NOT_STARTED:
 626       {
 627         LoadOrQueueTexture(textureInfo, observer); // If called inside NotifyObservers, queues until afterwards
 628         break;
 629       }
 630       case TextureManager::LoadState::LOADING:
 631       case TextureManager::LoadState::WAITING_FOR_MASK:
 632       case TextureManager::LoadState::MASK_APPLYING:
 633       case TextureManager::LoadState::MASK_APPLIED:
 634       {
 635         // Do not observe even we reload forced when texture is already loading state.
 636         if(TextureManager::ReloadPolicy::CACHED == reloadPolicy || TextureManager::INVALID_TEXTURE_ID == previousTextureId)
 637         {
 638           ObserveTexture(textureInfo, observer);
 639         }
 640         break;
 641       }
 642       case TextureManager::LoadState::UPLOADED:
 643       {
 644         if(observer)
 645         {
 646           LoadOrQueueTexture(textureInfo, observer);
 647         }
 648         break;
 649       }
 650       case TextureManager::LoadState::CANCELLED:
 651       {
 652         // A cancelled texture hasn't finished loading yet. Treat as a loading texture
 653         // (it's ref count has already been incremented, above)
 654         textureInfo.loadState = TextureManager::LoadState::LOADING;
 655         ObserveTexture(textureInfo, observer);
 656         break;
 657       }
 658       case TextureManager::LoadState::MASK_CANCELLED:
 659       {
 660         // A cancelled texture hasn't finished mask applying yet. Treat as a mask applying texture
 661         // (it's ref count has already been incremented, above)
 662         textureInfo.loadState = TextureManager::LoadState::MASK_APPLYING;
 663         ObserveTexture(textureInfo, observer);
 664         break;
 665       }
 666       case TextureManager::LoadState::LOAD_FINISHED:
 667       {
 668         // Loading has already completed.
 669         if(observer && textureInfo.storageType == StorageType::RETURN_PIXEL_BUFFER)
 670         {
 671           LoadOrQueueTexture(textureInfo, observer);
 672         }
 673         break;
 674       }
 675     }
 676   }
 677   else
 678   {
 679     // If the image is already finished to load, use cached texture.
 680     // We don't need to consider Observer because this is synchronous loading.
 681     if(!(textureInfo.loadState == TextureManager::LoadState::UPLOADED ||
 682          textureInfo.loadState == TextureManager::LoadState::LOAD_FINISHED))
 683     {
 684       if(url.GetProtocolType() == VisualUrl::TEXTURE)
 685       {
 686         // Get external textureSet from cacheManager.
 687         std::string location = textureInfo.url.GetLocation();
 688         if(!location.empty())
 689         {
 690           TextureId id                  = std::stoi(location);
 691           auto      externalTextureInfo = mTextureCacheManager.GetExternalTextureInfo(id);
 692           textureInfo.textures.push_back(externalTextureInfo.textureSet.GetTexture(0));
 693           textureInfo.loadState = LoadState::UPLOADED;
 694         }
 695       }
 696       else
 697       {
 698         std::vector<Devel::PixelBuffer> pixelBuffers;
 699         LoadImageSynchronously(url, desiredSize, fittingMode, samplingMode, orientationCorrection, loadYuvPlanes, pixelBuffers);
 700
 701         if(pixelBuffers.empty())
 702         {
 703           // If pixelBuffer loading is failed in synchronously, call RequestRemove() method.
 704           RequestRemove(textureId, nullptr);
 705           return INVALID_TEXTURE_ID;
 706         }
 707
 708         if(storageType == StorageType::KEEP_PIXEL_BUFFER) // For the mask image loading.
 709         {
 710           textureInfo.pixelBuffer = pixelBuffers[0]; // Store the pixel data
 711           textureInfo.loadState   = LoadState::LOAD_FINISHED;
 712         }
 713         else // For the image loading.
 714         {
 715           Texture maskTexture;
 716           if(maskTextureId != INVALID_TEXTURE_ID)
 717           {
 718             TextureCacheIndex maskCacheIndex = mTextureCacheManager.GetCacheIndexFromId(maskTextureId);
 719             if(maskCacheIndex != INVALID_CACHE_INDEX)
 720             {
 721               if(mTextureCacheManager[maskCacheIndex].storageType == StorageType::KEEP_PIXEL_BUFFER)
 722               {
 723                 Devel::PixelBuffer maskPixelBuffer = mTextureCacheManager[maskCacheIndex].pixelBuffer;
 724                 if(maskPixelBuffer)
 725                 {
 726                   pixelBuffers[0].ApplyMask(maskPixelBuffer, contentScale, cropToMask);
 727                 }
 728                 else
 729                 {
 730                   DALI_LOG_ERROR("Mask image cached invalid pixel buffer!\n");
 731                 }
 732               }
 733             }
 734             else
 735             {
 736               DALI_LOG_ERROR("Mask image is not stored in cache.\n");
 737             }
 738           }
 739           PreMultiply(pixelBuffers[0], preMultiplyOnLoad);
 740
 741           // Upload texture
 742           UploadTextures(pixelBuffers, textureInfo);
 743         }
 744       }
 745     }
 746   }
 747
 748   return textureId;
 749 }
 750
 751 void TextureManager::RequestRemove(const TextureManager::TextureId& textureId, TextureUploadObserver* observer)
 752 {
 753   DALI_LOG_INFO(gTextureManagerLogFilter, Debug::General, "TextureManager::RequestRemove( textureId=%d observer=%p )\n", textureId, observer);
 754
 755   // Queue to remove.
 756   if(textureId != INVALID_TEXTURE_ID)
 757   {
 758     TextureCacheIndex textureCacheIndex = mTextureCacheManager.GetCacheIndexFromId(textureId);
 759     if(textureCacheIndex != INVALID_CACHE_INDEX)
 760     {
 761       if(observer)
 762       {
 763         // Remove observer from cached texture info
 764         TextureInfo& textureInfo(mTextureCacheManager[textureCacheIndex]);
 765         RemoveTextureObserver(textureInfo, observer);
 766       }
 767
 768       mRemoveQueue.PushBack(textureId);
 769
 770       if(!mRemoveProcessorRegistered && Adaptor::IsAvailable())
 771       {
 772         mRemoveProcessorRegistered = true;
 773         Adaptor::Get().RegisterProcessor(*this, true);
 774       }
 775     }
 776   }
 777 }
 778
 779 void TextureManager::Remove(const TextureManager::TextureId& textureId)
 780 {
 781   if(textureId != INVALID_TEXTURE_ID)
 782   {
 783     TextureCacheIndex textureCacheIndex = mTextureCacheManager.GetCacheIndexFromId(textureId);
 784     if(textureCacheIndex != INVALID_CACHE_INDEX)
 785     {
 786       TextureManager::TextureId maskTextureId = INVALID_TEXTURE_ID;
 787       TextureInfo&              textureInfo(mTextureCacheManager[textureCacheIndex]);
 788       // We only need to consider maskTextureId when texture's loadState is not cancelled. Because it is already deleted.
 789       if(textureInfo.loadState != LoadState::CANCELLED && textureInfo.loadState != LoadState::MASK_CANCELLED)
 790       {
 791         if(textureInfo.maskTextureId != INVALID_TEXTURE_ID)
 792         {
 793           maskTextureId = textureInfo.maskTextureId;
 794         }
 795       }
 796
 797       DALI_LOG_INFO(gTextureManagerLogFilter, Debug::General, "TextureManager::Remove( textureId=%d ) cacheIndex:%d removal maskTextureId=%d, loadState=%s\n", textureId, textureCacheIndex.GetIndex(), maskTextureId, GET_LOAD_STATE_STRING(textureInfo.loadState));
 798
 799       // Remove textureId in CacheManager. Now, textureInfo is invalidate.
 800       mTextureCacheManager.RemoveCache(textureInfo);
 801
 802       // Remove maskTextureId in CacheManager
 803       if(maskTextureId != INVALID_TEXTURE_ID)
 804       {
 805         TextureCacheIndex maskCacheIndex = mTextureCacheManager.GetCacheIndexFromId(maskTextureId);
 806         if(maskCacheIndex != INVALID_CACHE_INDEX)
 807         {
 808           TextureInfo& maskTextureInfo(mTextureCacheManager[maskCacheIndex]);
 809
 810           DALI_LOG_INFO(gTextureManagerLogFilter, Debug::General, "TextureManager::Remove mask texture( maskTextureId=%d ) cacheIndex:%d, loadState=%s\n", maskTextureId, maskCacheIndex.GetIndex(), GET_LOAD_STATE_STRING(maskTextureInfo.loadState));
 811
 812           mTextureCacheManager.RemoveCache(maskTextureInfo);
 813         }
 814       }
 815     }
 816   }
 817 }
 818
 819 void TextureManager::ProcessRemoveQueue()
 820 {
 821   // Note that RemoveQueue is not be changed during Remove().
 822   for(auto&& textureId : mRemoveQueue)
 823   {
 824     if(textureId != INVALID_TEXTURE_ID)
 825     {
 826       Remove(textureId);
 827     }
 828   }
 829   mRemoveQueue.Clear();
 830 }
 831
 832 void TextureManager::Process(bool postProcessor)
 833 {
 834   DALI_LOG_INFO(gTextureManagerLogFilter, Debug::General, "TextureManager::Process()\n");
 835
 836   ProcessRemoveQueue();
 837
 838   if(Adaptor::IsAvailable())
 839   {
 840     Adaptor::Get().UnregisterProcessor(*this, true);
 841     mRemoveProcessorRegistered = false;
 842   }
 843 }
 844
 845 void TextureManager::LoadImageSynchronously(
 846   const VisualUrl&                 url,
 847   const Dali::ImageDimensions&     desiredSize,
 848   const Dali::FittingMode::Type&   fittingMode,
 849   const Dali::SamplingMode::Type&  samplingMode,
 850   const bool&                      orientationCorrection,
 851   const bool&                      loadYuvPlanes,
 852   std::vector<Devel::PixelBuffer>& pixelBuffers)
 853 {
 854   Devel::PixelBuffer pixelBuffer;
 855   if(url.IsBufferResource())
 856   {
 857     const EncodedImageBuffer& encodedImageBuffer = mTextureCacheManager.GetEncodedImageBuffer(url);
 858     if(encodedImageBuffer)
 859     {
 860       pixelBuffer = LoadImageFromBuffer(encodedImageBuffer.GetRawBuffer(), desiredSize, fittingMode, samplingMode, orientationCorrection);
 861     }
 862   }
 863   else
 864   {
 865     if(loadYuvPlanes)
 866     {
 867       Dali::LoadImagePlanesFromFile(url.GetUrl(), pixelBuffers, desiredSize, fittingMode, samplingMode, orientationCorrection);
 868     }
 869     else
 870     {
 871       pixelBuffer = Dali::LoadImageFromFile(url.GetUrl(), desiredSize, fittingMode, samplingMode, orientationCorrection);
 872     }
 873   }
 874
 875   if(pixelBuffer)
 876   {
 877     pixelBuffers.push_back(pixelBuffer);
 878   }
 879 }
 880
 881 void TextureManager::AddObserver(TextureManager::LifecycleObserver& observer)
 882 {
 883   // make sure an observer doesn't observe the same object twice
 884   // otherwise it will get multiple calls to ObjectDestroyed()
 885   DALI_ASSERT_DEBUG(mLifecycleObservers.End() == std::find(mLifecycleObservers.Begin(), mLifecycleObservers.End(), &observer));
 886   mLifecycleObservers.PushBack(&observer);
 887 }
 888
 889 void TextureManager::RemoveObserver(TextureManager::LifecycleObserver& observer)
 890 {
 891   // Find the observer...
 892   auto endIter = mLifecycleObservers.End();
 893   for(auto iter = mLifecycleObservers.Begin(); iter != endIter; ++iter)
 894   {
 895     if((*iter) == &observer)
 896     {
 897       mLifecycleObservers.Erase(iter);
 898       break;
 899     }
 900   }
 901   DALI_ASSERT_DEBUG(endIter != mLifecycleObservers.End());
 902 }
 903
 904 void TextureManager::LoadOrQueueTexture(TextureManager::TextureInfo& textureInfo, TextureUploadObserver* observer)
 905 {
 906   switch(textureInfo.loadState)
 907   {
 908     case LoadState::NOT_STARTED:
 909     case LoadState::LOAD_FAILED:
 910     {
 911       if(mLoadingQueueTextureId != INVALID_TEXTURE_ID)
 912       {
 913         QueueLoadTexture(textureInfo, observer);
 914       }
 915       else
 916       {
 917         LoadTexture(textureInfo, observer);
 918       }
 919       break;
 920     }
 921     case LoadState::UPLOADED:
 922     {
 923       if(mLoadingQueueTextureId != INVALID_TEXTURE_ID)
 924       {
 925         QueueLoadTexture(textureInfo, observer);
 926       }
 927       else
 928       {
 929         // The Texture has already loaded. The other observers have already been notified.
 930         // We need to send a "late" loaded notification for this observer.
 931         if(observer)
 932         {
 933           EmitLoadComplete(observer, textureInfo, true);
 934         }
 935       }
 936       break;
 937     }
 938     case LoadState::LOADING:
 939     case LoadState::CANCELLED:
 940     case LoadState::MASK_CANCELLED:
 941     case LoadState::LOAD_FINISHED:
 942     case LoadState::WAITING_FOR_MASK:
 943     case LoadState::MASK_APPLYING:
 944     case LoadState::MASK_APPLIED:
 945     {
 946       break;
 947     }
 948   }
 949 }
 950
 951 void TextureManager::QueueLoadTexture(const TextureManager::TextureInfo& textureInfo, TextureUploadObserver* observer)
 952 {
 953   const auto& textureId = textureInfo.textureId;
 954   mLoadQueue.PushBack(QueueElement(textureId, observer));
 955
 956   if(observer)
 957   {
 958     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Verbose, "  Connect DestructionSignal to observer:%p\n", observer);
 959     observer->DestructionSignal().Connect(this, &TextureManager::ObserverDestroyed);
 960   }
 961 }
 962
 963 void TextureManager::LoadTexture(TextureManager::TextureInfo& textureInfo, TextureUploadObserver* observer)
 964 {
 965   DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "TextureManager::LoadTexture(): url:%s sync:%s\n", textureInfo.url.GetUrl().c_str(), textureInfo.loadSynchronously ? "T" : "F");
 966   textureInfo.loadState = LoadState::LOADING;
 967   if(!textureInfo.loadSynchronously)
 968   {
 969     auto premultiplyOnLoad = (textureInfo.preMultiplyOnLoad && textureInfo.maskTextureId == INVALID_TEXTURE_ID) ? DevelAsyncImageLoader::PreMultiplyOnLoad::ON : DevelAsyncImageLoader::PreMultiplyOnLoad::OFF;
 970     if(textureInfo.animatedImageLoading)
 971     {
 972       mAsyncLoader->LoadAnimatedImage(textureInfo.textureId, textureInfo.animatedImageLoading, textureInfo.frameIndex, textureInfo.desiredSize, textureInfo.fittingMode, textureInfo.samplingMode, premultiplyOnLoad);
 973     }
 974     else
 975     {
 976       mAsyncLoader->Load(textureInfo.textureId, textureInfo.url, textureInfo.desiredSize, textureInfo.fittingMode, textureInfo.samplingMode, textureInfo.orientationCorrection, premultiplyOnLoad, textureInfo.loadYuvPlanes);
 977     }
 978   }
 979   ObserveTexture(textureInfo, observer);
 980 }
 981
 982 void TextureManager::ProcessLoadQueue()
 983 {
 984   for(auto&& element : mLoadQueue)
 985   {
 986     if(element.mTextureId == INVALID_TEXTURE_ID)
 987     {
 988       continue;
 989     }
 990
 991     TextureCacheIndex cacheIndex = mTextureCacheManager.GetCacheIndexFromId(element.mTextureId);
 992     if(cacheIndex != INVALID_CACHE_INDEX)
 993     {
 994       TextureInfo& textureInfo(mTextureCacheManager[cacheIndex]);
 995
 996       DALI_LOG_INFO(gTextureManagerLogFilter, Debug::General, "TextureManager::ProcessLoadQueue() textureId=%d, observer=%p, cacheIndex=@%d, loadState:%s\n", element.mTextureId, element.mObserver, cacheIndex.GetIndex(), GET_LOAD_STATE_STRING(textureInfo.loadState));
 997
 998       if((textureInfo.loadState == LoadState::UPLOADED) || (textureInfo.loadState == LoadState::LOAD_FINISHED && textureInfo.storageType == StorageType::RETURN_PIXEL_BUFFER))
 999       {
1000         if(element.mObserver)
1001         {
1002           EmitLoadComplete(element.mObserver, textureInfo, true);
1003         }
1004       }
1005       else if(textureInfo.loadState == LoadState::LOADING)
1006       {
1007         // Note : LOADING state texture cannot be queue.
1008         // This case be occured when same texture id are queue in mLoadQueue.
1009         ObserveTexture(textureInfo, element.mObserver);
1010       }
1011       else
1012       {
1013         LoadTexture(textureInfo, element.mObserver);
1014       }
1015     }
1016   }
1017   mLoadQueue.Clear();
1018 }
1019
1020 void TextureManager::ObserveTexture(TextureManager::TextureInfo& textureInfo,
1021                                     TextureUploadObserver*       observer)
1022 {
1023   DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "TextureManager::ObserveTexture(): url:%s observer:%p\n", textureInfo.url.GetUrl().c_str(), observer);
1024
1025   if(observer)
1026   {
1027     textureInfo.observerList.PushBack(observer);
1028
1029     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Verbose, "  Connect DestructionSignal to observer:%p\n", observer);
1030     observer->DestructionSignal().Connect(this, &TextureManager::ObserverDestroyed);
1031   }
1032 }
1033
1034 void TextureManager::AsyncLoadComplete(const TextureManager::TextureId& textureId, std::vector<Devel::PixelBuffer>& pixelBuffers)
1035 {
1036   TextureCacheIndex cacheIndex = mTextureCacheManager.GetCacheIndexFromId(textureId);
1037   DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "TextureManager::AsyncLoadComplete( textureId:%d CacheIndex:%d )\n", textureId, cacheIndex.GetIndex());
1038   if(cacheIndex != INVALID_CACHE_INDEX)
1039   {
1040     TextureInfo& textureInfo(mTextureCacheManager[cacheIndex]);
1041
1042     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "  textureId:%d Url:%s CacheIndex:%d LoadState: %s\n", textureInfo.textureId, textureInfo.url.GetUrl().c_str(), cacheIndex.GetIndex(), GET_LOAD_STATE_STRING(textureInfo.loadState));
1043     if(textureInfo.loadState != LoadState::CANCELLED && textureInfo.loadState != LoadState::MASK_CANCELLED)
1044     {
1045       // textureInfo can be invalidated after this call (as the mTextureInfoContainer may be modified)
1046       PostLoad(textureInfo, pixelBuffers);
1047     }
1048     else
1049     {
1050       Remove(textureInfo.textureId);
1051     }
1052   }
1053 }
1054
1055 void TextureManager::PostLoad(TextureManager::TextureInfo& textureInfo, std::vector<Devel::PixelBuffer>& pixelBuffers)
1056 {
1057   // Was the load successful?
1058   if(!pixelBuffers.empty())
1059   {
1060     if(pixelBuffers.size() == 1)
1061     {
1062       Devel::PixelBuffer pixelBuffer = pixelBuffers[0];
1063       if(pixelBuffer && (pixelBuffer.GetWidth() != 0) && (pixelBuffer.GetHeight() != 0))
1064       {
1065         // No atlas support for now
1066         textureInfo.useAtlas      = UseAtlas::NO_ATLAS;
1067         textureInfo.preMultiplied = pixelBuffer.IsAlphaPreMultiplied();
1068
1069         if(textureInfo.storageType == StorageType::UPLOAD_TO_TEXTURE)
1070         {
1071           // If there is a mask texture ID associated with this texture, then apply the mask
1072           // if it's already loaded. If it hasn't, and the mask is still loading,
1073           // wait for the mask to finish loading.
1074           // note, If the texture is already uploaded synchronously during loading,
1075           // we don't need to apply mask.
1076           if(textureInfo.loadState != LoadState::UPLOADED &&
1077              textureInfo.maskTextureId != INVALID_TEXTURE_ID)
1078           {
1079             if(textureInfo.loadState == LoadState::MASK_APPLYING)
1080             {
1081               textureInfo.loadState = LoadState::MASK_APPLIED;
1082               UploadTextures(pixelBuffers, textureInfo);
1083               NotifyObservers(textureInfo, true);
1084             }
1085             else
1086             {
1087               LoadState maskLoadState = mTextureCacheManager.GetTextureStateInternal(textureInfo.maskTextureId);
1088               textureInfo.pixelBuffer = pixelBuffer; // Store the pixel buffer temporarily
1089               if(maskLoadState == LoadState::LOADING)
1090               {
1091                 textureInfo.loadState = LoadState::WAITING_FOR_MASK;
1092               }
1093               else if(maskLoadState == LoadState::LOAD_FINISHED || maskLoadState == LoadState::UPLOADED)
1094               {
1095                 // Send New Task to Thread
1096                 TextureCacheIndex maskCacheIndex = mTextureCacheManager.GetCacheIndexFromId(textureInfo.maskTextureId);
1097                 if(maskCacheIndex != INVALID_CACHE_INDEX)
1098                 {
1099                   TextureInfo& maskTextureInfo(mTextureCacheManager[maskCacheIndex]);
1100                   if(maskTextureInfo.storageType == StorageType::KEEP_PIXEL_BUFFER)
1101                   {
1102                     // Send New Task to Thread
1103                     ApplyMask(textureInfo, textureInfo.maskTextureId);
1104                   }
1105                   else if(maskTextureInfo.storageType == StorageType::KEEP_TEXTURE)
1106                   {
1107                     // Upload image texture. textureInfo.loadState will be UPLOADED.
1108                     UploadTextures(pixelBuffers, textureInfo);
1109
1110                     // notify mask texture set.
1111                     NotifyObservers(textureInfo, true);
1112                   }
1113                 }
1114               }
1115               else // maskLoadState == LoadState::LOAD_FAILED
1116               {
1117                 // Url texture load success, But alpha mask texture load failed. Run as normal image upload.
1118                 DALI_LOG_ERROR("Alpha mask image loading failed! Image will not be masked\n");
1119                 UploadTextures(pixelBuffers, textureInfo);
1120                 NotifyObservers(textureInfo, true);
1121               }
1122             }
1123           }
1124           else
1125           {
1126             UploadTextures(pixelBuffers, textureInfo);
1127             NotifyObservers(textureInfo, true);
1128           }
1129         }
1130         else
1131         {
1132           textureInfo.pixelBuffer = pixelBuffer; // Store the pixel data
1133           textureInfo.loadState   = LoadState::LOAD_FINISHED;
1134
1135           if(textureInfo.storageType == StorageType::RETURN_PIXEL_BUFFER)
1136           {
1137             NotifyObservers(textureInfo, true);
1138           }
1139           else // for the StorageType::KEEP_PIXEL_BUFFER and StorageType::KEEP_TEXTURE
1140           {
1141             // Check if there was another texture waiting for this load to complete
1142             // (e.g. if this was an image mask, and its load is on a different thread)
1143             CheckForWaitingTexture(textureInfo);
1144           }
1145         }
1146       }
1147     }
1148     else
1149     {
1150       // YUV case
1151       // No atlas support for now
1152       textureInfo.useAtlas      = UseAtlas::NO_ATLAS;
1153       textureInfo.preMultiplied = false;
1154
1155       UploadTextures(pixelBuffers, textureInfo);
1156       NotifyObservers(textureInfo, true);
1157     }
1158   }
1159   else
1160   {
1161     textureInfo.loadState = LoadState::LOAD_FAILED;
1162     if(textureInfo.storageType == StorageType::KEEP_PIXEL_BUFFER || textureInfo.storageType == StorageType::KEEP_TEXTURE)
1163     {
1164       // Check if there was another texture waiting for this load to complete
1165       // (e.g. if this was an image mask, and its load is on a different thread)
1166       CheckForWaitingTexture(textureInfo);
1167     }
1168     else
1169     {
1170       NotifyObservers(textureInfo, false);
1171     }
1172   }
1173 }
1174
1175 void TextureManager::CheckForWaitingTexture(TextureManager::TextureInfo& maskTextureInfo)
1176 {
1177   if(maskTextureInfo.loadState == LoadState::LOAD_FINISHED &&
1178      maskTextureInfo.storageType == StorageType::KEEP_TEXTURE)
1179   {
1180     // Upload mask texture. textureInfo.loadState will be UPLOADED.
1181     std::vector<Devel::PixelBuffer> pixelBuffers;
1182     pixelBuffers.push_back(maskTextureInfo.pixelBuffer);
1183     UploadTextures(pixelBuffers, maskTextureInfo);
1184   }
1185
1186   DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "TextureManager::CheckForWaitingTexture(): maskTextureId=%d, maskTextureUrl=%s\n", maskTextureInfo.textureId, maskTextureInfo.url.GetUrl().c_str());
1187
1188   // Search the cache, checking if any texture has this texture id as a maskTextureId
1189   const std::size_t size = mTextureCacheManager.size();
1190
1191   // Keep notify observer required textureIds.
1192   // Note : NotifyObservers can change mTextureCacheManager cache struct. We should check id's validation before notify.
1193   std::vector<TextureId> notifyRequiredTextureIds;
1194
1195   // TODO : Refactorize here to not iterate whole cached image.
1196   for(TextureCacheIndex cacheIndex = TextureCacheIndex(TextureManagerType::TEXTURE_CACHE_INDEX_TYPE_LOCAL, 0u); cacheIndex.GetIndex() < size; ++cacheIndex.detailValue.index)
1197   {
1198     if(mTextureCacheManager[cacheIndex].maskTextureId == maskTextureInfo.textureId &&
1199        mTextureCacheManager[cacheIndex].loadState == LoadState::WAITING_FOR_MASK)
1200     {
1201       TextureInfo& textureInfo(mTextureCacheManager[cacheIndex]);
1202
1203       if(maskTextureInfo.loadState == LoadState::LOAD_FINISHED)
1204       {
1205         if(maskTextureInfo.storageType == StorageType::KEEP_PIXEL_BUFFER)
1206         {
1207           // Send New Task to Thread
1208           ApplyMask(textureInfo, maskTextureInfo.textureId);
1209         }
1210       }
1211       else if(maskTextureInfo.loadState == LoadState::UPLOADED)
1212       {
1213         if(maskTextureInfo.storageType == StorageType::KEEP_TEXTURE)
1214         {
1215           if(textureInfo.url.GetProtocolType() == VisualUrl::TEXTURE)
1216           {
1217             // Get external textureSet from cacheManager.
1218             std::string location = textureInfo.url.GetLocation();
1219             if(!location.empty())
1220             {
1221               TextureId id                  = std::stoi(location);
1222               auto      externalTextureInfo = mTextureCacheManager.GetExternalTextureInfo(id);
1223               textureInfo.textures.push_back(externalTextureInfo.textureSet.GetTexture(0));
1224               textureInfo.loadState = LoadState::UPLOADED;
1225             }
1226           }
1227           else
1228           {
1229             // Upload image texture. textureInfo.loadState will be UPLOADED.
1230             std::vector<Devel::PixelBuffer> pixelBuffers;
1231             pixelBuffers.push_back(textureInfo.pixelBuffer);
1232             UploadTextures(pixelBuffers, textureInfo);
1233           }
1234
1235           // Increase reference counts for notify required textureId.
1236           // Now we can assume that we don't remove & re-assign this textureId
1237           // during NotifyObserver signal emit.
1238           maskTextureInfo.referenceCount++;
1239           textureInfo.referenceCount++;
1240
1241           DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "TextureManager::CheckForWaitingTexture(): Ready to notify textureId=%d\n", textureInfo.textureId);
1242
1243           notifyRequiredTextureIds.push_back(textureInfo.textureId);
1244         }
1245       }
1246       else // maskTextureInfo.loadState == LoadState::LOAD_FAILED
1247       {
1248         // Url texture load success, But alpha mask texture load failed. Run as normal image upload.
1249         DALI_LOG_ERROR("Alpha mask image loading failed! Image will not be masked\n");
1250         std::vector<Devel::PixelBuffer> pixelBuffers;
1251         pixelBuffers.push_back(textureInfo.pixelBuffer);
1252         UploadTextures(pixelBuffers, textureInfo);
1253
1254         // Increase reference counts for notify required textureId.
1255         // Now we can assume that we don't remove & re-assign this textureId
1256         // during NotifyObserver signal emit.
1257         maskTextureInfo.referenceCount++;
1258         textureInfo.referenceCount++;
1259
1260         DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "TextureManager::CheckForWaitingTexture(): Ready to notify textureId=%d\n", textureInfo.textureId);
1261
1262         notifyRequiredTextureIds.push_back(textureInfo.textureId);
1263       }
1264     }
1265   }
1266
1267   // Notify textures are masked
1268   for(const auto textureId : notifyRequiredTextureIds)
1269   {
1270     TextureCacheIndex textureCacheIndex = mTextureCacheManager.GetCacheIndexFromId(textureId);
1271     if(textureCacheIndex != INVALID_CACHE_INDEX)
1272     {
1273       TextureInfo& textureInfo(mTextureCacheManager[textureCacheIndex]);
1274       NotifyObservers(textureInfo, true);
1275     }
1276   }
1277
1278   // Decrease reference count
1279   for(const auto textureId : notifyRequiredTextureIds)
1280   {
1281     RequestRemove(textureId, nullptr);
1282   }
1283 }
1284
1285 void TextureManager::ApplyMask(TextureManager::TextureInfo& textureInfo, const TextureManager::TextureId& maskTextureId)
1286 {
1287   TextureCacheIndex maskCacheIndex = mTextureCacheManager.GetCacheIndexFromId(maskTextureId);
1288   if(maskCacheIndex != INVALID_CACHE_INDEX)
1289   {
1290     Devel::PixelBuffer maskPixelBuffer = mTextureCacheManager[maskCacheIndex].pixelBuffer;
1291     Devel::PixelBuffer pixelBuffer     = textureInfo.pixelBuffer;
1292     textureInfo.pixelBuffer.Reset();
1293
1294     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "TextureManager::ApplyMask(): url:%s sync:%s\n", textureInfo.url.GetUrl().c_str(), textureInfo.loadSynchronously ? "T" : "F");
1295
1296     textureInfo.loadState  = LoadState::MASK_APPLYING;
1297     auto premultiplyOnLoad = textureInfo.preMultiplyOnLoad ? DevelAsyncImageLoader::PreMultiplyOnLoad::ON : DevelAsyncImageLoader::PreMultiplyOnLoad::OFF;
1298     mAsyncLoader->ApplyMask(textureInfo.textureId, pixelBuffer, maskPixelBuffer, textureInfo.scaleFactor, textureInfo.cropToMask, premultiplyOnLoad);
1299   }
1300 }
1301
1302 void TextureManager::UploadTextures(std::vector<Devel::PixelBuffer>& pixelBuffers, TextureManager::TextureInfo& textureInfo)
1303 {
1304   if(!pixelBuffers.empty() && textureInfo.loadState != LoadState::UPLOADED && textureInfo.useAtlas != UseAtlas::USE_ATLAS)
1305   {
1306     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::General, "  TextureManager::UploadTextures() New Texture for textureId:%d\n", textureInfo.textureId);
1307
1308     // Check if this pixelBuffer is premultiplied
1309     textureInfo.preMultiplied = pixelBuffers[0].IsAlphaPreMultiplied();
1310
1311     auto& renderingAddOn = RenderingAddOn::Get();
1312     if(renderingAddOn.IsValid())
1313     {
1314       renderingAddOn.CreateGeometry(textureInfo.textureId, pixelBuffers[0]);
1315     }
1316
1317     // Remove previous textures and insert new textures
1318     textureInfo.textures.clear();
1319
1320     for(auto&& pixelBuffer : pixelBuffers)
1321     {
1322       Texture   texture   = Texture::New(Dali::TextureType::TEXTURE_2D, pixelBuffer.GetPixelFormat(), pixelBuffer.GetWidth(), pixelBuffer.GetHeight());
1323       PixelData pixelData = Devel::PixelBuffer::Convert(pixelBuffer);
1324       texture.Upload(pixelData);
1325       textureInfo.textures.push_back(texture);
1326     }
1327   }
1328
1329   // Update the load state.
1330   // Note: This is regardless of success as we care about whether a
1331   // load attempt is in progress or not.  If unsuccessful, a broken
1332   // image is still loaded.
1333   textureInfo.loadState = LoadState::UPLOADED;
1334 }
1335
1336 void TextureManager::NotifyObservers(TextureManager::TextureInfo& textureInfo, const bool& success)
1337 {
1338   TextureId textureId = textureInfo.textureId;
1339
1340   // If there is an observer: Notify the load is complete, whether successful or not,
1341   // and erase it from the list
1342   TextureInfo* info = &textureInfo;
1343
1344   if(info->animatedImageLoading)
1345   {
1346     // If loading failed, we don't need to get frameCount and frameInterval.
1347     if(success)
1348     {
1349       info->frameCount    = info->animatedImageLoading.GetImageCount();
1350       info->frameInterval = info->animatedImageLoading.GetFrameInterval(info->frameIndex);
1351     }
1352     info->animatedImageLoading.Reset();
1353   }
1354
1355   mLoadingQueueTextureId = textureId;
1356
1357   // Reverse observer list that we can pop_back the observer.
1358   std::reverse(info->observerList.Begin(), info->observerList.End());
1359
1360   while(info->observerList.Count())
1361   {
1362     TextureUploadObserver* observer = *(info->observerList.End() - 1u);
1363
1364     // During LoadComplete() a Control ResourceReady() signal is emitted.
1365     // During that signal the app may add remove /add Textures (e.g. via
1366     // ImageViews).
1367     // It is possible for observers to be removed from the observer list,
1368     // and it is also possible for the mTextureInfoContainer to be modified,
1369     // invalidating the reference to the textureInfo struct.
1370     // Texture load requests for the same URL are deferred until the end of this
1371     // method.
1372     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "TextureManager::NotifyObservers() observer:%p textureId:%d url:%s loadState:%s\n", observer, textureId, info->url.GetUrl().c_str(), GET_LOAD_STATE_STRING(info->loadState));
1373     // It is possible for the observer to be deleted.
1374     // Disconnect and remove the observer first.
1375     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Verbose, "  Disconnect DestructionSignal to observer:%p\n", observer);
1376     observer->DestructionSignal().Disconnect(this, &TextureManager::ObserverDestroyed);
1377
1378     info->observerList.Erase(info->observerList.End() - 1u);
1379
1380     EmitLoadComplete(observer, *info, success);
1381
1382     // Get the textureInfo from the container again as it may have been invalidated.
1383     TextureCacheIndex textureInfoIndex = mTextureCacheManager.GetCacheIndexFromId(textureId);
1384     if(textureInfoIndex == INVALID_CACHE_INDEX)
1385     {
1386       break; // texture has been removed - can stop.
1387     }
1388     info = &mTextureCacheManager[textureInfoIndex];
1389   }
1390
1391   mLoadingQueueTextureId = INVALID_TEXTURE_ID;
1392   ProcessLoadQueue();
1393
1394   if(info->storageType == StorageType::RETURN_PIXEL_BUFFER && info->observerList.Count() == 0)
1395   {
1396     RequestRemove(info->textureId, nullptr);
1397   }
1398 }
1399
1400 void TextureManager::ObserverDestroyed(TextureUploadObserver* observer)
1401 {
1402   DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Verbose, "TextureManager::ObserverDestroyed() observer:%p\n", observer);
1403
1404   const std::size_t size = mTextureCacheManager.size();
1405   for(TextureCacheIndex cacheIndex = TextureCacheIndex(TextureManagerType::TEXTURE_CACHE_INDEX_TYPE_LOCAL, 0u); cacheIndex.GetIndex() < size; ++cacheIndex.detailValue.index)
1406   {
1407     TextureInfo& textureInfo(mTextureCacheManager[cacheIndex]);
1408     for(TextureInfo::ObserverListType::Iterator j = textureInfo.observerList.Begin();
1409         j != textureInfo.observerList.End();)
1410     {
1411       if(*j == observer)
1412       {
1413         j = textureInfo.observerList.Erase(j);
1414       }
1415       else
1416       {
1417         ++j;
1418       }
1419     }
1420   }
1421
1422   // Remove element from the LoadQueue
1423   for(auto&& element : mLoadQueue)
1424   {
1425     if(element.mObserver == observer)
1426     {
1427       element.mTextureId = INVALID_TEXTURE_ID;
1428       element.mObserver  = nullptr;
1429     }
1430   }
1431 }
1432
1433 Dali::Geometry TextureManager::GetRenderGeometry(const TextureManager::TextureId& textureId, std::uint32_t& frontElements, std::uint32_t& backElements)
1434 {
1435   return RenderingAddOn::Get().IsValid() ? RenderingAddOn::Get().GetGeometry(textureId, frontElements, backElements) : Geometry();
1436 }
1437
1438 void TextureManager::EmitLoadComplete(TextureUploadObserver* observer, TextureManager::TextureInfo& textureInfo, const bool& success)
1439 {
1440   if(textureInfo.storageType == StorageType::RETURN_PIXEL_BUFFER)
1441   {
1442     observer->LoadComplete(success, TextureUploadObserver::TextureInformation(TextureUploadObserver::ReturnType::PIXEL_BUFFER, textureInfo.pixelBuffer, textureInfo.url.GetUrl(), textureInfo.preMultiplied));
1443   }
1444   else
1445   {
1446     TextureSet textureSet = GetTextureSet(textureInfo);
1447     if(textureInfo.isAnimatedImageFormat)
1448     {
1449       observer->LoadComplete(success, TextureUploadObserver::TextureInformation(TextureUploadObserver::ReturnType::ANIMATED_IMAGE_TEXTURE, textureInfo.textureId, textureSet, textureInfo.frameCount, textureInfo.frameInterval));
1450     }
1451     else
1452     {
1453       observer->LoadComplete(success, TextureUploadObserver::TextureInformation(TextureUploadObserver::ReturnType::TEXTURE, textureInfo.textureId, textureSet, (textureInfo.useAtlas == UseAtlas::USE_ATLAS) ? true : false, textureInfo.atlasRect, textureInfo.preMultiplied));
1454     }
1455   }
1456 }
1457
1458 TextureSet TextureManager::GetTextureSet(const TextureManager::TextureId& textureId)
1459 {
1460   TextureSet                textureSet;
1461   TextureManager::LoadState loadState = mTextureCacheManager.GetTextureStateInternal(textureId);
1462   if(loadState == TextureManager::LoadState::UPLOADED)
1463   {
1464     // LoadComplete has already been called - keep the same texture set
1465     TextureCacheIndex textureCacheIndex = mTextureCacheManager.GetCacheIndexFromId(textureId);
1466     if(textureCacheIndex != INVALID_CACHE_INDEX)
1467     {
1468       TextureInfo& textureInfo(mTextureCacheManager[textureCacheIndex]);
1469       textureSet = GetTextureSet(textureInfo);
1470     }
1471   }
1472   else
1473   {
1474     DALI_LOG_ERROR("GetTextureSet is failed. texture is not uploaded \n");
1475   }
1476   return textureSet;
1477 }
1478
1479 TextureSet TextureManager::GetTextureSet(const TextureManager::TextureInfo& textureInfo)
1480 {
1481   TextureSet textureSet;
1482
1483   // LoadComplete has already been called - keep the same texture set
1484   textureSet = TextureSet::New();
1485   if(!textureInfo.textures.empty())
1486   {
1487     if(textureInfo.textures.size() > 1) // For YUV case
1488     {
1489       uint32_t index = 0u;
1490       for(auto&& texture : textureInfo.textures)
1491       {
1492         textureSet.SetTexture(index++, texture);
1493       }
1494     }
1495     else
1496     {
1497       textureSet.SetTexture(TEXTURE_INDEX, textureInfo.textures[0]);
1498       TextureCacheIndex maskCacheIndex = mTextureCacheManager.GetCacheIndexFromId(textureInfo.maskTextureId);
1499       if(maskCacheIndex != INVALID_CACHE_INDEX)
1500       {
1501         TextureInfo& maskTextureInfo(mTextureCacheManager[maskCacheIndex]);
1502         if(maskTextureInfo.storageType == StorageType::UPLOAD_TO_TEXTURE || maskTextureInfo.storageType == StorageType::KEEP_TEXTURE)
1503         {
1504           if(!maskTextureInfo.textures.empty())
1505           {
1506             textureSet.SetTexture(MASK_TEXTURE_INDEX, maskTextureInfo.textures[0]);
1507           }
1508         }
1509       }
1510     }
1511   }
1512   return textureSet;
1513 }
1514
1515 void TextureManager::RemoveTextureObserver(TextureManager::TextureInfo& textureInfo, TextureUploadObserver* observer)
1516 {
1517   // Remove its observer
1518   if(observer)
1519   {
1520     const auto iterEnd = textureInfo.observerList.End();
1521     const auto iter    = std::find(textureInfo.observerList.Begin(), iterEnd, observer);
1522     if(iter != iterEnd)
1523     {
1524       // Disconnect and remove the observer.
1525       DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Verbose, "  Disconnect DestructionSignal to observer:%p\n", observer);
1526       observer->DestructionSignal().Disconnect(this, &TextureManager::ObserverDestroyed);
1527       textureInfo.observerList.Erase(iter);
1528     }
1529   }
1530 }
1531
1532 } // namespace Internal
1533
1534 } // namespace Toolkit
1535
1536 } // namespace Dali