dali-toolkit/internal/texture-manager/texture-manager-impl.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
  18 // CLASS HEADER
  19 #include "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/debug.h>
  26 #include <dali/public-api/rendering/geometry.h>
  27
  28 // INTERNAL HEADERS
  29 #include <dali-toolkit/internal/texture-manager/texture-async-loading-helper.h>
  30 #include <dali-toolkit/internal/texture-manager/texture-cache-manager.h>
  31 #include <dali-toolkit/internal/visuals/image-atlas-manager.h>
  32 #include <dali-toolkit/internal/visuals/rendering-addon.h>
  33
  34 namespace
  35 {
  36 constexpr auto INITIAL_HASH_NUMBER                     = size_t{0u};
  37 constexpr auto DEFAULT_NUMBER_OF_LOCAL_LOADER_THREADS  = size_t{4u};
  38 constexpr auto DEFAULT_NUMBER_OF_REMOTE_LOADER_THREADS = size_t{8u};
  39
  40 constexpr auto NUMBER_OF_LOCAL_LOADER_THREADS_ENV  = "DALI_TEXTURE_LOCAL_THREADS";
  41 constexpr auto NUMBER_OF_REMOTE_LOADER_THREADS_ENV = "DALI_TEXTURE_REMOTE_THREADS";
  42
  43 size_t GetNumberOfThreads(const char* environmentVariable, size_t defaultValue)
  44 {
  45   using Dali::EnvironmentVariable::GetEnvironmentVariable;
  46   auto           numberString          = GetEnvironmentVariable(environmentVariable);
  47   auto           numberOfThreads       = numberString ? std::strtoul(numberString, nullptr, 10) : 0;
  48   constexpr auto MAX_NUMBER_OF_THREADS = 100u;
  49   DALI_ASSERT_DEBUG(numberOfThreads < MAX_NUMBER_OF_THREADS);
  50   return (numberOfThreads > 0 && numberOfThreads < MAX_NUMBER_OF_THREADS) ? numberOfThreads : defaultValue;
  51 }
  52
  53 size_t GetNumberOfLocalLoaderThreads()
  54 {
  55   return GetNumberOfThreads(NUMBER_OF_LOCAL_LOADER_THREADS_ENV, DEFAULT_NUMBER_OF_LOCAL_LOADER_THREADS);
  56 }
  57
  58 size_t GetNumberOfRemoteLoaderThreads()
  59 {
  60   return GetNumberOfThreads(NUMBER_OF_REMOTE_LOADER_THREADS_ENV, DEFAULT_NUMBER_OF_REMOTE_LOADER_THREADS);
  61 }
  62
  63 } // namespace
  64
  65 namespace Dali
  66 {
  67 namespace Toolkit
  68 {
  69 namespace Internal
  70 {
  71 #ifdef DEBUG_ENABLED
  72 // Define logfilter Internal namespace level so other files (e.g. texture-cache-manager.cpp) can also use this filter.
  73 Debug::Filter* gTextureManagerLogFilter = Debug::Filter::New(Debug::NoLogging, false, "LOG_TEXTURE_MANAGER");
  74
  75 // clang-format off
  76 #define GET_LOAD_STATE_STRING(loadState) \
  77   loadState == TextureManagerType::LoadState::NOT_STARTED      ? "NOT_STARTED"      : \
  78   loadState == TextureManagerType::LoadState::LOADING          ? "LOADING"          : \
  79   loadState == TextureManagerType::LoadState::LOAD_FINISHED    ? "LOAD_FINISHED"    : \
  80   loadState == TextureManagerType::LoadState::WAITING_FOR_MASK ? "WAITING_FOR_MASK" : \
  81   loadState == TextureManagerType::LoadState::MASK_APPLYING    ? "MASK_APPLYING"    : \
  82   loadState == TextureManagerType::LoadState::MASK_APPLIED     ? "MASK_APPLIED"     : \
  83   loadState == TextureManagerType::LoadState::UPLOADED         ? "UPLOADED"         : \
  84   loadState == TextureManagerType::LoadState::CANCELLED        ? "CANCELLED"        : \
  85   loadState == TextureManagerType::LoadState::LOAD_FAILED      ? "LOAD_FAILED"      : \
  86                                                                  "Unknown"
  87 // clang-format on
  88 #endif
  89
  90 namespace
  91 {
  92 const uint32_t DEFAULT_ATLAS_SIZE(1024u);               ///< This size can fit 8 by 8 images of average size 128 * 128
  93 const Vector4  FULL_ATLAS_RECT(0.0f, 0.0f, 1.0f, 1.0f); ///< UV Rectangle that covers the full Texture
  94
  95 void PreMultiply(Devel::PixelBuffer pixelBuffer, TextureManager::MultiplyOnLoad& preMultiplyOnLoad)
  96 {
  97   if(Pixel::HasAlpha(pixelBuffer.GetPixelFormat()))
  98   {
  99     if(preMultiplyOnLoad == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD)
 100     {
 101       pixelBuffer.MultiplyColorByAlpha();
 102     }
 103   }
 104   else
 105   {
 106     preMultiplyOnLoad = TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
 107   }
 108 }
 109
 110 } // Anonymous namespace
 111
 112 TextureManager::MaskingData::MaskingData()
 113 : mAlphaMaskUrl(),
 114   mAlphaMaskId(INVALID_TEXTURE_ID),
 115   mContentScaleFactor(1.0f),
 116   mCropToMask(true)
 117 {
 118 }
 119
 120 TextureManager::TextureManager()
 121 : mTextureCacheManager(),
 122   mAsyncLocalLoaders(GetNumberOfLocalLoaderThreads(), [&]() { return TextureAsyncLoadingHelper(*this); }),
 123   mAsyncRemoteLoaders(GetNumberOfRemoteLoaderThreads(), [&]() { return TextureAsyncLoadingHelper(*this); }),
 124   mLifecycleObservers(),
 125   mLoadQueue(),
 126   mRemoveQueue(),
 127   mQueueLoadFlag(false)
 128 {
 129   // Initialize the AddOn
 130   RenderingAddOn::Get();
 131 }
 132
 133 TextureManager::~TextureManager()
 134 {
 135   for(auto iter = mLifecycleObservers.Begin(), endIter = mLifecycleObservers.End(); iter != endIter; ++iter)
 136   {
 137     (*iter)->TextureManagerDestroyed();
 138   }
 139 }
 140
 141 TextureSet TextureManager::LoadAnimatedImageTexture(
 142   Dali::AnimatedImageLoading      animatedImageLoading,
 143   const uint32_t&                 frameIndex,
 144   TextureManager::TextureId&      textureId,
 145   MaskingDataPointer&             maskInfo,
 146   const Dali::SamplingMode::Type& samplingMode,
 147   const Dali::WrapMode::Type&     wrapModeU,
 148   const Dali::WrapMode::Type&     wrapModeV,
 149   const bool&                     synchronousLoading,
 150   const bool&                     useCache,
 151   TextureUploadObserver*          textureObserver)
 152 {
 153   TextureSet textureSet;
 154
 155   if(synchronousLoading)
 156   {
 157     Devel::PixelBuffer pixelBuffer;
 158     if(animatedImageLoading)
 159     {
 160       pixelBuffer = animatedImageLoading.LoadFrame(frameIndex);
 161     }
 162     if(!pixelBuffer)
 163     {
 164       DALI_LOG_ERROR("TextureManager::LoadAnimatedImageTexture: Synchronous loading is failed\n");
 165     }
 166     else
 167     {
 168       if(maskInfo && maskInfo->mAlphaMaskUrl.IsValid())
 169       {
 170         Devel::PixelBuffer maskPixelBuffer = LoadImageFromFile(maskInfo->mAlphaMaskUrl.GetUrl(), ImageDimensions(), FittingMode::SCALE_TO_FILL, SamplingMode::NO_FILTER, true);
 171         if(maskPixelBuffer)
 172         {
 173           pixelBuffer.ApplyMask(maskPixelBuffer, maskInfo->mContentScaleFactor, maskInfo->mCropToMask);
 174         }
 175         else
 176         {
 177           DALI_LOG_ERROR("TextureManager::LoadAnimatedImageTexture: Synchronous mask image loading is failed\n");
 178         }
 179       }
 180       PixelData pixelData = Devel::PixelBuffer::Convert(pixelBuffer); // takes ownership of buffer
 181       if(!textureSet)
 182       {
 183         Texture texture = Texture::New(Dali::TextureType::TEXTURE_2D, pixelData.GetPixelFormat(), pixelData.GetWidth(), pixelData.GetHeight());
 184         texture.Upload(pixelData);
 185         textureSet = TextureSet::New();
 186         textureSet.SetTexture(0u, texture);
 187       }
 188     }
 189   }
 190   else
 191   {
 192     TextureId alphaMaskId        = INVALID_TEXTURE_ID;
 193     float     contentScaleFactor = 1.0f;
 194     bool      cropToMask         = false;
 195     if(maskInfo && maskInfo->mAlphaMaskUrl.IsValid())
 196     {
 197       maskInfo->mAlphaMaskId = RequestMaskLoad(maskInfo->mAlphaMaskUrl);
 198       alphaMaskId            = maskInfo->mAlphaMaskId;
 199       contentScaleFactor     = maskInfo->mContentScaleFactor;
 200       cropToMask             = maskInfo->mCropToMask;
 201     }
 202
 203     auto preMultiply = TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
 204     textureId        = RequestLoadInternal(animatedImageLoading.GetUrl(), alphaMaskId, contentScaleFactor, ImageDimensions(), FittingMode::SCALE_TO_FILL, SamplingMode::BOX_THEN_LINEAR, UseAtlas::NO_ATLAS, cropToMask, StorageType::UPLOAD_TO_TEXTURE, textureObserver, true, TextureManager::ReloadPolicy::CACHED, preMultiply, animatedImageLoading, frameIndex, false, useCache);
 205
 206     TextureManager::LoadState loadState = mTextureCacheManager.GetTextureStateInternal(textureId);
 207     if(loadState == TextureManager::LoadState::UPLOADED)
 208     {
 209       // LoadComplete has already been called - keep the same texture set
 210       textureSet = GetTextureSet(textureId);
 211     }
 212   }
 213
 214   if(textureSet)
 215   {
 216     Sampler sampler = Sampler::New();
 217     sampler.SetWrapMode(wrapModeU, wrapModeV);
 218     textureSet.SetSampler(0u, sampler);
 219   }
 220
 221   return textureSet;
 222 }
 223
 224 Devel::PixelBuffer TextureManager::LoadPixelBuffer(
 225   const VisualUrl&                url,
 226   const Dali::ImageDimensions&    desiredSize,
 227   const Dali::FittingMode::Type&  fittingMode,
 228   const Dali::SamplingMode::Type& samplingMode,
 229   const bool&                     synchronousLoading,
 230   TextureUploadObserver*          textureObserver,
 231   const bool&                     orientationCorrection,
 232   TextureManager::MultiplyOnLoad& preMultiplyOnLoad)
 233 {
 234   Devel::PixelBuffer pixelBuffer;
 235   if(synchronousLoading)
 236   {
 237     if(url.IsValid())
 238     {
 239       if(url.IsBufferResource())
 240       {
 241         const EncodedImageBuffer& encodedImageBuffer = mTextureCacheManager.GetEncodedImageBuffer(url);
 242         if(encodedImageBuffer)
 243         {
 244           pixelBuffer = LoadImageFromBuffer(encodedImageBuffer.GetRawBuffer(), desiredSize, fittingMode, samplingMode, orientationCorrection);
 245         }
 246       }
 247       else
 248       {
 249         pixelBuffer = LoadImageFromFile(url.GetUrl(), desiredSize, fittingMode, samplingMode, orientationCorrection);
 250       }
 251       if(pixelBuffer && preMultiplyOnLoad == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD)
 252       {
 253         PreMultiply(pixelBuffer, preMultiplyOnLoad);
 254       }
 255     }
 256   }
 257   else
 258   {
 259     RequestLoadInternal(url, 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, false);
 260   }
 261
 262   return pixelBuffer;
 263 }
 264
 265 TextureSet TextureManager::LoadTexture(
 266   const VisualUrl&                    url,
 267   const Dali::ImageDimensions&        desiredSize,
 268   const Dali::FittingMode::Type&      fittingMode,
 269   const Dali::SamplingMode::Type&     samplingMode,
 270   MaskingDataPointer&                 maskInfo,
 271   const bool&                         synchronousLoading,
 272   TextureManager::TextureId&          textureId,
 273   Vector4&                            textureRect,
 274   Dali::ImageDimensions&              textureRectSize,
 275   bool&                               atlasingStatus,
 276   bool&                               loadingStatus,
 277   const Dali::WrapMode::Type&         wrapModeU,
 278   const Dali::WrapMode::Type&         wrapModeV,
 279   TextureUploadObserver*              textureObserver,
 280   AtlasUploadObserver*                atlasObserver,
 281   ImageAtlasManagerPtr                imageAtlasManager,
 282   const bool&                         orientationCorrection,
 283   const TextureManager::ReloadPolicy& reloadPolicy,
 284   TextureManager::MultiplyOnLoad&     preMultiplyOnLoad)
 285 {
 286   TextureSet textureSet;
 287
 288   loadingStatus = false;
 289   textureRect   = FULL_ATLAS_RECT;
 290
 291   if(VisualUrl::TEXTURE == url.GetProtocolType())
 292   {
 293     std::string location = url.GetLocation();
 294     if(location.size() > 0u)
 295     {
 296       TextureId id = std::stoi(location);
 297       textureSet   = mTextureCacheManager.GetExternalTextureSet(id);
 298       if(textureSet)
 299       {
 300         preMultiplyOnLoad = TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
 301         textureId         = id;
 302         return textureSet;
 303       }
 304     }
 305   }
 306   else
 307   {
 308     // For Atlas
 309     if(synchronousLoading && atlasingStatus && imageAtlasManager->CheckAtlasAvailable(url, desiredSize))
 310     {
 311       Devel::PixelBuffer pixelBuffer = LoadImageSynchronously(url, desiredSize, fittingMode, samplingMode, orientationCorrection);
 312
 313       if(maskInfo && maskInfo->mAlphaMaskUrl.IsValid())
 314       {
 315         Devel::PixelBuffer maskPixelBuffer = LoadImageSynchronously(maskInfo->mAlphaMaskUrl.GetUrl(), ImageDimensions(), FittingMode::SCALE_TO_FILL, SamplingMode::NO_FILTER, true);
 316         if(maskPixelBuffer)
 317         {
 318           pixelBuffer.ApplyMask(maskPixelBuffer, maskInfo->mContentScaleFactor, maskInfo->mCropToMask);
 319         }
 320       }
 321
 322       PixelData data;
 323       if(pixelBuffer)
 324       {
 325         PreMultiply(pixelBuffer, preMultiplyOnLoad);
 326         data = Devel::PixelBuffer::Convert(pixelBuffer); // takes ownership of buffer
 327
 328         if(data)
 329         {
 330           textureSet = imageAtlasManager->Add(textureRect, data);
 331           if(textureSet)
 332           {
 333             textureRectSize.SetWidth(data.GetWidth());
 334             textureRectSize.SetHeight(data.GetHeight());
 335           }
 336         }
 337         else
 338         {
 339           DALI_LOG_ERROR("TextureManager::LoadTexture: Synchronous Texture loading with atlasing is failed.\n");
 340         }
 341       }
 342       if(!textureSet)
 343       {
 344         atlasingStatus = false;
 345       }
 346     }
 347
 348     if(!textureSet)
 349     {
 350       loadingStatus = true;
 351       // Atlas manager can chage desired size when it is set by 0,0.
 352       // We should store into textureRectSize only if atlasing successed.
 353       // So copy inputed desiredSize, and replace value into textureRectSize only if atlasing success.
 354       Dali::ImageDimensions atlasDesiredSize = desiredSize;
 355       if(atlasingStatus)
 356       {
 357         textureSet = imageAtlasManager->Add(textureRect, url.GetUrl(), atlasDesiredSize, fittingMode, true, atlasObserver);
 358       }
 359       if(!textureSet) // big image, no atlasing or atlasing failed
 360       {
 361         atlasingStatus = false;
 362         if(!maskInfo || !maskInfo->mAlphaMaskUrl.IsValid())
 363         {
 364           textureId = RequestLoad(
 365             url,
 366             desiredSize,
 367             fittingMode,
 368             samplingMode,
 369             UseAtlas::NO_ATLAS,
 370             textureObserver,
 371             orientationCorrection,
 372             reloadPolicy,
 373             preMultiplyOnLoad,
 374             synchronousLoading);
 375         }
 376         else
 377         {
 378           maskInfo->mAlphaMaskId = RequestMaskLoad(maskInfo->mAlphaMaskUrl, synchronousLoading);
 379           textureId              = RequestLoad(
 380             url,
 381             maskInfo->mAlphaMaskId,
 382             maskInfo->mContentScaleFactor,
 383             desiredSize,
 384             fittingMode,
 385             samplingMode,
 386             UseAtlas::NO_ATLAS,
 387             maskInfo->mCropToMask,
 388             textureObserver,
 389             orientationCorrection,
 390             reloadPolicy,
 391             preMultiplyOnLoad,
 392             synchronousLoading);
 393         }
 394
 395         TextureManager::LoadState loadState = mTextureCacheManager.GetTextureStateInternal(textureId);
 396         if(loadState == TextureManager::LoadState::UPLOADED)
 397         {
 398           // LoadComplete has already been called - keep the same texture set
 399           textureSet = mTextureCacheManager.GetTextureSet(textureId);
 400         }
 401
 402         // If we are loading the texture, or waiting for the ready signal handler to complete, inform
 403         // caller that they need to wait.
 404         loadingStatus = (loadState == TextureManager::LoadState::LOADING ||
 405                          loadState == TextureManager::LoadState::WAITING_FOR_MASK ||
 406                          loadState == TextureManager::LoadState::MASK_APPLYING ||
 407                          loadState == TextureManager::LoadState::MASK_APPLIED ||
 408                          loadState == TextureManager::LoadState::NOT_STARTED ||
 409                          mQueueLoadFlag);
 410       }
 411       else
 412       {
 413         textureRectSize = atlasDesiredSize;
 414       }
 415     }
 416   }
 417
 418   if(!atlasingStatus && textureSet)
 419   {
 420     Sampler sampler = Sampler::New();
 421     sampler.SetWrapMode(wrapModeU, wrapModeV);
 422     textureSet.SetSampler(0u, sampler);
 423   }
 424
 425   if(synchronousLoading)
 426   {
 427     loadingStatus = false;
 428   }
 429
 430   return textureSet;
 431 }
 432
 433 TextureManager::TextureId TextureManager::RequestLoad(
 434   const VisualUrl&                    url,
 435   const ImageDimensions&              desiredSize,
 436   const Dali::FittingMode::Type&      fittingMode,
 437   const Dali::SamplingMode::Type&     samplingMode,
 438   const UseAtlas&                     useAtlas,
 439   TextureUploadObserver*              observer,
 440   const bool&                         orientationCorrection,
 441   const TextureManager::ReloadPolicy& reloadPolicy,
 442   TextureManager::MultiplyOnLoad&     preMultiplyOnLoad,
 443   const bool&                         synchronousLoading)
 444 {
 445   return RequestLoadInternal(url, INVALID_TEXTURE_ID, 1.0f, desiredSize, fittingMode, samplingMode, useAtlas, false, StorageType::UPLOAD_TO_TEXTURE, observer, orientationCorrection, reloadPolicy, preMultiplyOnLoad, Dali::AnimatedImageLoading(), 0u, synchronousLoading, true);
 446 }
 447
 448 TextureManager::TextureId TextureManager::RequestLoad(
 449   const VisualUrl&                    url,
 450   const TextureManager::TextureId&    maskTextureId,
 451   const float&                        contentScale,
 452   const Dali::ImageDimensions&        desiredSize,
 453   const Dali::FittingMode::Type&      fittingMode,
 454   const Dali::SamplingMode::Type&     samplingMode,
 455   const TextureManager::UseAtlas&     useAtlas,
 456   const bool&                         cropToMask,
 457   TextureUploadObserver*              observer,
 458   const bool&                         orientationCorrection,
 459   const TextureManager::ReloadPolicy& reloadPolicy,
 460   TextureManager::MultiplyOnLoad&     preMultiplyOnLoad,
 461   const bool&                         synchronousLoading)
 462 {
 463   return RequestLoadInternal(url, maskTextureId, contentScale, desiredSize, fittingMode, samplingMode, useAtlas, cropToMask, StorageType::UPLOAD_TO_TEXTURE, observer, orientationCorrection, reloadPolicy, preMultiplyOnLoad, Dali::AnimatedImageLoading(), 0u, synchronousLoading, true);
 464 }
 465
 466 TextureManager::TextureId TextureManager::RequestMaskLoad(
 467   const VisualUrl& maskUrl,
 468   const bool&      synchronousLoading)
 469 {
 470   // Use the normal load procedure to get the alpha mask.
 471   auto preMultiply = TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
 472   return RequestLoadInternal(maskUrl, INVALID_TEXTURE_ID, 1.0f, ImageDimensions(), FittingMode::SCALE_TO_FILL, SamplingMode::NO_FILTER, UseAtlas::NO_ATLAS, false, StorageType::KEEP_PIXEL_BUFFER, NULL, true, TextureManager::ReloadPolicy::CACHED, preMultiply, Dali::AnimatedImageLoading(), 0u, synchronousLoading, true);
 473 }
 474
 475 TextureManager::TextureId TextureManager::RequestLoadInternal(
 476   const VisualUrl&                    url,
 477   const TextureManager::TextureId&    maskTextureId,
 478   const float&                        contentScale,
 479   const Dali::ImageDimensions&        desiredSize,
 480   const Dali::FittingMode::Type&      fittingMode,
 481   const Dali::SamplingMode::Type&     samplingMode,
 482   const TextureManager::UseAtlas&     useAtlas,
 483   const bool&                         cropToMask,
 484   const TextureManager::StorageType&  storageType,
 485   TextureUploadObserver*              observer,
 486   const bool&                         orientationCorrection,
 487   const TextureManager::ReloadPolicy& reloadPolicy,
 488   TextureManager::MultiplyOnLoad&     preMultiplyOnLoad,
 489   Dali::AnimatedImageLoading          animatedImageLoading,
 490   const std::uint32_t&                frameIndex,
 491   const bool&                         synchronousLoading,
 492   const bool&                         useCache)
 493 {
 494   TextureHash       textureHash = INITIAL_HASH_NUMBER;
 495   TextureCacheIndex cacheIndex  = INVALID_CACHE_INDEX;
 496   if(storageType != StorageType::RETURN_PIXEL_BUFFER && useCache)
 497   {
 498     textureHash = mTextureCacheManager.GenerateHash(url, desiredSize, fittingMode, samplingMode, useAtlas, maskTextureId, cropToMask);
 499
 500     // Look up the texture by hash. Note: The extra parameters are used in case of a hash collision.
 501     cacheIndex = mTextureCacheManager.FindCachedTexture(textureHash, url, desiredSize, fittingMode, samplingMode, useAtlas, maskTextureId, cropToMask, preMultiplyOnLoad, (animatedImageLoading) ? true : false);
 502   }
 503
 504   TextureManager::TextureId textureId = INVALID_TEXTURE_ID;
 505   // Check if the requested Texture exists in the cache.
 506   if(cacheIndex != INVALID_CACHE_INDEX)
 507   {
 508     if(TextureManager::ReloadPolicy::CACHED == reloadPolicy)
 509     {
 510       // Mark this texture being used by another client resource. Forced reload would replace the current texture
 511       // without the need for incrementing the reference count.
 512       ++(mTextureCacheManager[cacheIndex].referenceCount);
 513     }
 514     textureId = mTextureCacheManager[cacheIndex].textureId;
 515
 516     // Update preMultiplyOnLoad value. It should be changed according to preMultiplied value of the cached info.
 517     preMultiplyOnLoad = mTextureCacheManager[cacheIndex].preMultiplied ? TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD : TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
 518
 519     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::General, "TextureManager::RequestLoad( url=%s observer=%p ) Using cached texture id@%d, textureId=%d premultiplied=%d\n", url.GetUrl().c_str(), observer, cacheIndex.GetIndex(), textureId, mTextureCacheManager[cacheIndex].preMultiplied ? 1 : 0);
 520   }
 521
 522   if(textureId == INVALID_TEXTURE_ID) // There was no caching, or caching not required
 523   {
 524     textureId = mTextureCacheManager.GenerateTextureId();
 525
 526     bool preMultiply = (preMultiplyOnLoad == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD);
 527
 528     // Cache new texutre, and get cacheIndex.
 529     cacheIndex = mTextureCacheManager.AppendCache(TextureInfo(textureId, maskTextureId, url, desiredSize, contentScale, fittingMode, samplingMode, false, cropToMask, useAtlas, textureHash, orientationCorrection, preMultiply, animatedImageLoading, frameIndex));
 530
 531     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::General, "TextureManager::RequestLoad( url=%s observer=%p ) New texture, cacheIndex:%d, textureId=%d\n", url.GetUrl().c_str(), observer, cacheIndex.GetIndex(), textureId);
 532   }
 533
 534   // The below code path is common whether we are using the cache or not.
 535   // The textureInfoIndex now refers to either a pre-existing cached TextureInfo,
 536   // or a new TextureInfo just created.
 537   TextureInfo& textureInfo(mTextureCacheManager[cacheIndex]);
 538   textureInfo.maskTextureId         = maskTextureId;
 539   textureInfo.storageType           = storageType;
 540   textureInfo.orientationCorrection = orientationCorrection;
 541
 542   DALI_LOG_INFO(gTextureManagerLogFilter, Debug::General, "TextureInfo loadState:%s\n", GET_LOAD_STATE_STRING(textureInfo.loadState));
 543
 544   // Force reloading of texture by setting loadState unless already loading or cancelled.
 545   if(TextureManager::ReloadPolicy::FORCED == reloadPolicy &&
 546      TextureManager::LoadState::LOADING != textureInfo.loadState &&
 547      TextureManager::LoadState::WAITING_FOR_MASK != textureInfo.loadState &&
 548      TextureManager::LoadState::MASK_APPLYING != textureInfo.loadState &&
 549      TextureManager::LoadState::MASK_APPLIED != textureInfo.loadState &&
 550      TextureManager::LoadState::CANCELLED != textureInfo.loadState)
 551   {
 552     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Verbose, "TextureManager::RequestLoad( url=%s observer=%p ) ForcedReload cacheIndex:%d, textureId=%d\n", url.GetUrl().c_str(), observer, cacheIndex.GetIndex(), textureId);
 553
 554     textureInfo.loadState = TextureManager::LoadState::NOT_STARTED;
 555   }
 556
 557   if(!synchronousLoading)
 558   {
 559     // Check if we should add the observer.
 560     // Only do this if we have not loaded yet and it will not have loaded by the end of this method.
 561     switch(textureInfo.loadState)
 562     {
 563       case TextureManager::LoadState::LOAD_FAILED: // Failed notifies observer which then stops observing.
 564       case TextureManager::LoadState::NOT_STARTED:
 565       {
 566         LoadOrQueueTexture(textureInfo, observer); // If called inside NotifyObservers, queues until afterwards
 567         break;
 568       }
 569       case TextureManager::LoadState::LOADING:
 570       case TextureManager::LoadState::WAITING_FOR_MASK:
 571       case TextureManager::LoadState::MASK_APPLYING:
 572       case TextureManager::LoadState::MASK_APPLIED:
 573       {
 574         ObserveTexture(textureInfo, observer);
 575         break;
 576       }
 577       case TextureManager::LoadState::UPLOADED:
 578       {
 579         if(observer)
 580         {
 581           LoadOrQueueTexture(textureInfo, observer);
 582         }
 583         break;
 584       }
 585       case TextureManager::LoadState::CANCELLED:
 586       {
 587         // A cancelled texture hasn't finished loading yet. Treat as a loading texture
 588         // (it's ref count has already been incremented, above)
 589         textureInfo.loadState = TextureManager::LoadState::LOADING;
 590         ObserveTexture(textureInfo, observer);
 591         break;
 592       }
 593       case TextureManager::LoadState::LOAD_FINISHED:
 594       {
 595         // Loading has already completed.
 596         if(observer && textureInfo.storageType == StorageType::RETURN_PIXEL_BUFFER)
 597         {
 598           LoadOrQueueTexture(textureInfo, observer);
 599         }
 600         break;
 601       }
 602     }
 603   }
 604   else
 605   {
 606     // If the image is already finished to load, use cached texture.
 607     // We don't need to consider Observer because this is synchronous loading.
 608     if(!(textureInfo.loadState == TextureManager::LoadState::UPLOADED ||
 609          textureInfo.loadState == TextureManager::LoadState::LOAD_FINISHED))
 610     {
 611       Devel::PixelBuffer pixelBuffer = LoadImageSynchronously(url, desiredSize, fittingMode, samplingMode, orientationCorrection);
 612
 613       if(!pixelBuffer)
 614       {
 615         // If pixelBuffer loading is failed in synchronously, call Remove() method.
 616         Remove(textureId, nullptr);
 617         return INVALID_TEXTURE_ID;
 618       }
 619
 620       if(storageType == StorageType::KEEP_PIXEL_BUFFER) // For the mask image loading.
 621       {
 622         textureInfo.pixelBuffer = pixelBuffer; // Store the pixel data
 623         textureInfo.loadState   = LoadState::LOAD_FINISHED;
 624       }
 625       else // For the image loading.
 626       {
 627         if(maskTextureId != INVALID_TEXTURE_ID)
 628         {
 629           TextureCacheIndex maskCacheIndex = mTextureCacheManager.GetCacheIndexFromId(maskTextureId);
 630           if(maskCacheIndex != INVALID_CACHE_INDEX)
 631           {
 632             Devel::PixelBuffer maskPixelBuffer = mTextureCacheManager[maskCacheIndex].pixelBuffer;
 633             if(maskPixelBuffer)
 634             {
 635               pixelBuffer.ApplyMask(maskPixelBuffer, contentScale, cropToMask);
 636             }
 637             else
 638             {
 639               DALI_LOG_ERROR("Mask image cached invalid pixel buffer!\n");
 640             }
 641           }
 642           else
 643           {
 644             DALI_LOG_ERROR("Mask image is not stored in cache.\n");
 645           }
 646         }
 647         PreMultiply(pixelBuffer, preMultiplyOnLoad);
 648
 649         // Upload texture
 650         UploadTexture(pixelBuffer, textureInfo);
 651       }
 652     }
 653   }
 654   return textureId;
 655 }
 656
 657 void TextureManager::Remove(const TextureManager::TextureId& textureId, TextureUploadObserver* observer)
 658 {
 659   if(textureId != INVALID_TEXTURE_ID)
 660   {
 661     if(mQueueLoadFlag)
 662     {
 663       // Remove textureId after NotifyObserver finished
 664       mRemoveQueue.PushBack(textureId);
 665     }
 666     else
 667     {
 668       // Remove textureId in CacheManager.
 669       mTextureCacheManager.RemoveCache(textureId);
 670     }
 671
 672     if(observer)
 673     {
 674       // Remove element from the LoadQueue
 675       for(auto&& element : mLoadQueue)
 676       {
 677         if(element.mObserver == observer)
 678         {
 679           // Do not erase the item. We will clear it later in ProcessLoadQueue().
 680           element.mObserver = nullptr;
 681           break;
 682         }
 683       }
 684     }
 685   }
 686 }
 687
 688 Devel::PixelBuffer TextureManager::LoadImageSynchronously(
 689   const VisualUrl&                url,
 690   const Dali::ImageDimensions&    desiredSize,
 691   const Dali::FittingMode::Type&  fittingMode,
 692   const Dali::SamplingMode::Type& samplingMode,
 693   const bool&                     orientationCorrection)
 694 {
 695   Devel::PixelBuffer pixelBuffer;
 696   if(url.IsBufferResource())
 697   {
 698     const EncodedImageBuffer& encodedImageBuffer = mTextureCacheManager.GetEncodedImageBuffer(url);
 699     if(encodedImageBuffer)
 700     {
 701       pixelBuffer = LoadImageFromBuffer(encodedImageBuffer.GetRawBuffer(), desiredSize, fittingMode, samplingMode, orientationCorrection);
 702     }
 703   }
 704   else
 705   {
 706     pixelBuffer = LoadImageFromFile(url.GetUrl(), desiredSize, fittingMode, samplingMode, orientationCorrection);
 707   }
 708   return pixelBuffer;
 709 }
 710
 711 void TextureManager::AddObserver(TextureManager::LifecycleObserver& observer)
 712 {
 713   // make sure an observer doesn't observe the same object twice
 714   // otherwise it will get multiple calls to ObjectDestroyed()
 715   DALI_ASSERT_DEBUG(mLifecycleObservers.End() == std::find(mLifecycleObservers.Begin(), mLifecycleObservers.End(), &observer));
 716   mLifecycleObservers.PushBack(&observer);
 717 }
 718
 719 void TextureManager::RemoveObserver(TextureManager::LifecycleObserver& observer)
 720 {
 721   // Find the observer...
 722   auto endIter = mLifecycleObservers.End();
 723   for(auto iter = mLifecycleObservers.Begin(); iter != endIter; ++iter)
 724   {
 725     if((*iter) == &observer)
 726     {
 727       mLifecycleObservers.Erase(iter);
 728       break;
 729     }
 730   }
 731   DALI_ASSERT_DEBUG(endIter != mLifecycleObservers.End());
 732 }
 733
 734 void TextureManager::LoadOrQueueTexture(TextureManager::TextureInfo& textureInfo, TextureUploadObserver* observer)
 735 {
 736   switch(textureInfo.loadState)
 737   {
 738     case LoadState::NOT_STARTED:
 739     case LoadState::LOAD_FAILED:
 740     {
 741       if(mQueueLoadFlag)
 742       {
 743         QueueLoadTexture(textureInfo, observer);
 744       }
 745       else
 746       {
 747         LoadTexture(textureInfo, observer);
 748       }
 749       break;
 750     }
 751     case LoadState::UPLOADED:
 752     {
 753       if(mQueueLoadFlag)
 754       {
 755         QueueLoadTexture(textureInfo, observer);
 756       }
 757       else
 758       {
 759         // The Texture has already loaded. The other observers have already been notified.
 760         // We need to send a "late" loaded notification for this observer.
 761         EmitLoadComplete(observer, textureInfo, true);
 762       }
 763       break;
 764     }
 765     case LoadState::LOADING:
 766     case LoadState::CANCELLED:
 767     case LoadState::LOAD_FINISHED:
 768     case LoadState::WAITING_FOR_MASK:
 769     case LoadState::MASK_APPLYING:
 770     case LoadState::MASK_APPLIED:
 771     {
 772       break;
 773     }
 774   }
 775 }
 776
 777 void TextureManager::QueueLoadTexture(const TextureManager::TextureInfo& textureInfo, TextureUploadObserver* observer)
 778 {
 779   const auto& textureId = textureInfo.textureId;
 780   mLoadQueue.PushBack(LoadQueueElement(textureId, observer));
 781
 782   observer->DestructionSignal().Connect(this, &TextureManager::ObserverDestroyed);
 783 }
 784
 785 void TextureManager::LoadTexture(TextureManager::TextureInfo& textureInfo, TextureUploadObserver* observer)
 786 {
 787   DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "TextureManager::LoadTexture(): url:%s sync:%s\n", textureInfo.url.GetUrl().c_str(), textureInfo.loadSynchronously ? "T" : "F");
 788
 789   textureInfo.loadState = LoadState::LOADING;
 790   if(!textureInfo.loadSynchronously)
 791   {
 792     auto& loadersContainer  = (textureInfo.url.IsLocalResource() || textureInfo.url.IsBufferResource()) ? mAsyncLocalLoaders : mAsyncRemoteLoaders;
 793     auto  loadingHelperIt   = loadersContainer.GetNext();
 794     auto  premultiplyOnLoad = (textureInfo.preMultiplyOnLoad && textureInfo.maskTextureId == INVALID_TEXTURE_ID) ? DevelAsyncImageLoader::PreMultiplyOnLoad::ON : DevelAsyncImageLoader::PreMultiplyOnLoad::OFF;
 795     DALI_ASSERT_ALWAYS(loadingHelperIt != loadersContainer.End());
 796     if(textureInfo.animatedImageLoading)
 797     {
 798       loadingHelperIt->LoadAnimatedImage(textureInfo.textureId, textureInfo.animatedImageLoading, textureInfo.frameIndex);
 799     }
 800     else
 801     {
 802       loadingHelperIt->Load(textureInfo.textureId, textureInfo.url, textureInfo.desiredSize, textureInfo.fittingMode, textureInfo.samplingMode, textureInfo.orientationCorrection, premultiplyOnLoad);
 803     }
 804   }
 805   ObserveTexture(textureInfo, observer);
 806 }
 807
 808 void TextureManager::ProcessLoadQueue()
 809 {
 810   for(auto&& element : mLoadQueue)
 811   {
 812     if(!element.mObserver)
 813     {
 814       continue;
 815     }
 816
 817     TextureCacheIndex cacheIndex = mTextureCacheManager.GetCacheIndexFromId(element.mTextureId);
 818     if(cacheIndex != INVALID_CACHE_INDEX)
 819     {
 820       TextureInfo& textureInfo(mTextureCacheManager[cacheIndex]);
 821       if((textureInfo.loadState == LoadState::UPLOADED) || (textureInfo.loadState == LoadState::LOAD_FINISHED && textureInfo.storageType == StorageType::RETURN_PIXEL_BUFFER))
 822       {
 823         EmitLoadComplete(element.mObserver, textureInfo, true);
 824       }
 825       else
 826       {
 827         LoadTexture(textureInfo, element.mObserver);
 828       }
 829     }
 830   }
 831   mLoadQueue.Clear();
 832 }
 833
 834 void TextureManager::ProcessRemoveQueue()
 835 {
 836   for(const auto& textureId : mRemoveQueue)
 837   {
 838     mTextureCacheManager.RemoveCache(textureId);
 839   }
 840   mRemoveQueue.Clear();
 841 }
 842
 843 void TextureManager::ObserveTexture(TextureManager::TextureInfo& textureInfo,
 844                                     TextureUploadObserver*       observer)
 845 {
 846   DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "TextureManager::ObserveTexture(): url:%s observer:%p\n", textureInfo.url.GetUrl().c_str(), observer);
 847
 848   if(observer)
 849   {
 850     textureInfo.observerList.PushBack(observer);
 851     observer->DestructionSignal().Connect(this, &TextureManager::ObserverDestroyed);
 852   }
 853 }
 854
 855 void TextureManager::AsyncLoadComplete(const TextureManager::TextureId& textureId, Devel::PixelBuffer pixelBuffer)
 856 {
 857   TextureCacheIndex cacheIndex = mTextureCacheManager.GetCacheIndexFromId(textureId);
 858   DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "TextureManager::AsyncLoadComplete( textureId:%d CacheIndex:%d )\n", textureId, cacheIndex.GetIndex());
 859   if(cacheIndex != INVALID_CACHE_INDEX)
 860   {
 861     TextureInfo& textureInfo(mTextureCacheManager[cacheIndex]);
 862
 863     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));
 864
 865     if(textureInfo.loadState != LoadState::CANCELLED)
 866     {
 867       // textureInfo can be invalidated after this call (as the mTextureInfoContainer may be modified)
 868       PostLoad(textureInfo, pixelBuffer);
 869     }
 870     else
 871     {
 872       Remove(textureInfo.textureId, nullptr);
 873     }
 874   }
 875 }
 876
 877 void TextureManager::PostLoad(TextureManager::TextureInfo& textureInfo, Devel::PixelBuffer& pixelBuffer)
 878 {
 879   // Was the load successful?
 880   if(pixelBuffer && (pixelBuffer.GetWidth() != 0) && (pixelBuffer.GetHeight() != 0))
 881   {
 882     // No atlas support for now
 883     textureInfo.useAtlas      = UseAtlas::NO_ATLAS;
 884     textureInfo.preMultiplied = pixelBuffer.IsAlphaPreMultiplied();
 885
 886     if(textureInfo.storageType == StorageType::UPLOAD_TO_TEXTURE)
 887     {
 888       // If there is a mask texture ID associated with this texture, then apply the mask
 889       // if it's already loaded. If it hasn't, and the mask is still loading,
 890       // wait for the mask to finish loading.
 891       // note, If the texture is already uploaded synchronously during loading,
 892       // we don't need to apply mask.
 893       if(textureInfo.loadState != LoadState::UPLOADED &&
 894          textureInfo.maskTextureId != INVALID_TEXTURE_ID)
 895       {
 896         if(textureInfo.loadState == LoadState::MASK_APPLYING)
 897         {
 898           textureInfo.loadState = LoadState::MASK_APPLIED;
 899           UploadTexture(pixelBuffer, textureInfo);
 900           NotifyObservers(textureInfo, true);
 901         }
 902         else
 903         {
 904           LoadState maskLoadState = mTextureCacheManager.GetTextureStateInternal(textureInfo.maskTextureId);
 905           textureInfo.pixelBuffer = pixelBuffer; // Store the pixel buffer temporarily
 906           if(maskLoadState == LoadState::LOADING)
 907           {
 908             textureInfo.loadState = LoadState::WAITING_FOR_MASK;
 909           }
 910           else if(maskLoadState == LoadState::LOAD_FINISHED)
 911           {
 912             // Send New Task to Thread
 913             ApplyMask(textureInfo, textureInfo.maskTextureId);
 914           }
 915           else // maskLoadState == LoadState::LOAD_FAILED
 916           {
 917             // Url texture load success, But alpha mask texture load failed. Run as normal image upload.
 918             DALI_LOG_ERROR("Alpha mask image loading failed! Image will not be masked\n");
 919             UploadTexture(pixelBuffer, textureInfo);
 920             NotifyObservers(textureInfo, true);
 921           }
 922         }
 923       }
 924       else
 925       {
 926         UploadTexture(pixelBuffer, textureInfo);
 927         NotifyObservers(textureInfo, true);
 928       }
 929     }
 930     else
 931     {
 932       textureInfo.pixelBuffer = pixelBuffer; // Store the pixel data
 933       textureInfo.loadState   = LoadState::LOAD_FINISHED;
 934
 935       if(textureInfo.storageType == StorageType::RETURN_PIXEL_BUFFER)
 936       {
 937         NotifyObservers(textureInfo, true);
 938       }
 939       else
 940       {
 941         // Check if there was another texture waiting for this load to complete
 942         // (e.g. if this was an image mask, and its load is on a different thread)
 943         CheckForWaitingTexture(textureInfo);
 944       }
 945     }
 946   }
 947   else
 948   {
 949     textureInfo.loadState = LoadState::LOAD_FAILED;
 950     if(textureInfo.storageType != StorageType::KEEP_PIXEL_BUFFER)
 951     {
 952       NotifyObservers(textureInfo, false);
 953     }
 954     else // if(textureInfo.storageType == StorageType::KEEP_PIXEL_BUFFER) // image mask case
 955     {
 956       // Check if there was another texture waiting for this load to complete
 957       // (e.g. if this was an image mask, and its load is on a different thread)
 958       CheckForWaitingTexture(textureInfo);
 959     }
 960   }
 961 }
 962
 963 void TextureManager::CheckForWaitingTexture(TextureManager::TextureInfo& maskTextureInfo)
 964 {
 965   // Search the cache, checking if any texture has this texture id as a
 966   // maskTextureId:
 967   const std::size_t size = mTextureCacheManager.size();
 968
 969   const bool maskLoadSuccess = maskTextureInfo.loadState == LoadState::LOAD_FINISHED ? true : false;
 970
 971   // TODO : Refactorize here to not iterate whole cached image.
 972   for(TextureCacheIndex cacheIndex = TextureCacheIndex(TextureManagerType::TEXTURE_CACHE_INDEX_TYPE_LOCAL, 0u); cacheIndex.GetIndex() < size; ++cacheIndex.detailValue.index)
 973   {
 974     if(mTextureCacheManager[cacheIndex].maskTextureId == maskTextureInfo.textureId &&
 975        mTextureCacheManager[cacheIndex].loadState == LoadState::WAITING_FOR_MASK)
 976     {
 977       TextureInfo& textureInfo(mTextureCacheManager[cacheIndex]);
 978
 979       if(maskLoadSuccess)
 980       {
 981         // Send New Task to Thread
 982         ApplyMask(textureInfo, maskTextureInfo.textureId);
 983       }
 984       else
 985       {
 986         // Url texture load success, But alpha mask texture load failed. Run as normal image upload.
 987         DALI_LOG_ERROR("Alpha mask image loading failed! Image will not be masked\n");
 988         UploadTexture(textureInfo.pixelBuffer, textureInfo);
 989         NotifyObservers(textureInfo, true);
 990       }
 991     }
 992   }
 993 }
 994
 995 void TextureManager::ApplyMask(TextureManager::TextureInfo& textureInfo, const TextureManager::TextureId& maskTextureId)
 996 {
 997   TextureCacheIndex maskCacheIndex = mTextureCacheManager.GetCacheIndexFromId(maskTextureId);
 998   if(maskCacheIndex != INVALID_CACHE_INDEX)
 999   {
1000     Devel::PixelBuffer maskPixelBuffer = mTextureCacheManager[maskCacheIndex].pixelBuffer;
1001     Devel::PixelBuffer pixelBuffer     = textureInfo.pixelBuffer;
1002     textureInfo.pixelBuffer.Reset();
1003
1004     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "TextureManager::ApplyMask(): url:%s sync:%s\n", textureInfo.url.GetUrl().c_str(), textureInfo.loadSynchronously ? "T" : "F");
1005
1006     textureInfo.loadState   = LoadState::MASK_APPLYING;
1007     auto& loadersContainer  = (textureInfo.url.IsLocalResource() || textureInfo.url.IsBufferResource()) ? mAsyncLocalLoaders : mAsyncRemoteLoaders;
1008     auto  loadingHelperIt   = loadersContainer.GetNext();
1009     auto  premultiplyOnLoad = textureInfo.preMultiplyOnLoad ? DevelAsyncImageLoader::PreMultiplyOnLoad::ON : DevelAsyncImageLoader::PreMultiplyOnLoad::OFF;
1010     DALI_ASSERT_ALWAYS(loadingHelperIt != loadersContainer.End());
1011     loadingHelperIt->ApplyMask(textureInfo.textureId, pixelBuffer, maskPixelBuffer, textureInfo.scaleFactor, textureInfo.cropToMask, premultiplyOnLoad);
1012   }
1013 }
1014
1015 void TextureManager::UploadTexture(Devel::PixelBuffer& pixelBuffer, TextureManager::TextureInfo& textureInfo)
1016 {
1017   if(textureInfo.loadState != LoadState::UPLOADED && textureInfo.useAtlas != UseAtlas::USE_ATLAS)
1018   {
1019     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::General, "  TextureManager::UploadTexture() New Texture for textureId:%d\n", textureInfo.textureId);
1020
1021     // Check if this pixelBuffer is premultiplied
1022     textureInfo.preMultiplied = pixelBuffer.IsAlphaPreMultiplied();
1023
1024     auto& renderingAddOn = RenderingAddOn::Get();
1025     if(renderingAddOn.IsValid())
1026     {
1027       renderingAddOn.CreateGeometry(textureInfo.textureId, pixelBuffer);
1028     }
1029
1030     Texture texture = Texture::New(Dali::TextureType::TEXTURE_2D, pixelBuffer.GetPixelFormat(), pixelBuffer.GetWidth(), pixelBuffer.GetHeight());
1031
1032     PixelData pixelData = Devel::PixelBuffer::Convert(pixelBuffer);
1033     texture.Upload(pixelData);
1034     if(!textureInfo.textureSet)
1035     {
1036       textureInfo.textureSet = TextureSet::New();
1037     }
1038     textureInfo.textureSet.SetTexture(0u, texture);
1039   }
1040
1041   // Update the load state.
1042   // Note: This is regardless of success as we care about whether a
1043   // load attempt is in progress or not.  If unsuccessful, a broken
1044   // image is still loaded.
1045   textureInfo.loadState = LoadState::UPLOADED;
1046 }
1047
1048 void TextureManager::NotifyObservers(TextureManager::TextureInfo& textureInfo, const bool& success)
1049 {
1050   TextureId textureId = textureInfo.textureId;
1051
1052   // If there is an observer: Notify the load is complete, whether successful or not,
1053   // and erase it from the list
1054   TextureInfo* info = &textureInfo;
1055
1056   if(info->animatedImageLoading)
1057   {
1058     // If loading failed, we don't need to get frameCount and frameInterval.
1059     if(success)
1060     {
1061       info->frameCount    = info->animatedImageLoading.GetImageCount();
1062       info->frameInterval = info->animatedImageLoading.GetFrameInterval(info->frameIndex);
1063     }
1064     info->animatedImageLoading.Reset();
1065   }
1066
1067   mQueueLoadFlag = true;
1068
1069   while(info->observerList.Count())
1070   {
1071     TextureUploadObserver* observer = info->observerList[0];
1072
1073     // During LoadComplete() a Control ResourceReady() signal is emitted.
1074     // During that signal the app may add remove /add Textures (e.g. via
1075     // ImageViews).
1076     // It is possible for observers to be removed from the observer list,
1077     // and it is also possible for the mTextureInfoContainer to be modified,
1078     // invalidating the reference to the textureInfo struct.
1079     // Texture load requests for the same URL are deferred until the end of this
1080     // method.
1081     DALI_LOG_INFO(gTextureManagerLogFilter, Debug::Concise, "TextureManager::NotifyObservers() textureId:%d url:%s loadState:%s\n", textureId, info->url.GetUrl().c_str(), GET_LOAD_STATE_STRING(info->loadState));
1082
1083     // It is possible for the observer to be deleted.
1084     // Disconnect and remove the observer first.
1085     observer->DestructionSignal().Disconnect(this, &TextureManager::ObserverDestroyed);
1086
1087     info->observerList.Erase(info->observerList.Begin());
1088
1089     EmitLoadComplete(observer, *info, success);
1090
1091     // Get the textureInfo from the container again as it may have been invalidated.
1092     TextureCacheIndex textureInfoIndex = mTextureCacheManager.GetCacheIndexFromId(textureId);
1093     if(textureInfoIndex == INVALID_CACHE_INDEX)
1094     {
1095       break; // texture has been removed - can stop.
1096     }
1097     info = &mTextureCacheManager[textureInfoIndex];
1098   }
1099
1100   mQueueLoadFlag = false;
1101   ProcessLoadQueue();
1102   ProcessRemoveQueue();
1103
1104   if(info->storageType == StorageType::RETURN_PIXEL_BUFFER && info->observerList.Count() == 0)
1105   {
1106     Remove(info->textureId, nullptr);
1107   }
1108 }
1109
1110 void TextureManager::ObserverDestroyed(TextureUploadObserver* observer)
1111 {
1112   const std::size_t size = mTextureCacheManager.size();
1113   for(TextureCacheIndex cacheIndex = TextureCacheIndex(TextureManagerType::TEXTURE_CACHE_INDEX_TYPE_LOCAL, 0u); cacheIndex.GetIndex() < size; ++cacheIndex.detailValue.index)
1114   {
1115     TextureInfo& textureInfo(mTextureCacheManager[cacheIndex]);
1116     for(TextureInfo::ObserverListType::Iterator j = textureInfo.observerList.Begin();
1117         j != textureInfo.observerList.End();)
1118     {
1119       if(*j == observer)
1120       {
1121         j = textureInfo.observerList.Erase(j);
1122       }
1123       else
1124       {
1125         ++j;
1126       }
1127     }
1128   }
1129
1130   // Remove element from the LoadQueue
1131   for(auto&& element : mLoadQueue)
1132   {
1133     if(element.mObserver == observer)
1134     {
1135       element.mObserver = nullptr;
1136     }
1137   }
1138 }
1139
1140 Dali::Geometry TextureManager::GetRenderGeometry(const TextureManager::TextureId& textureId, std::uint32_t& frontElements, std::uint32_t& backElements)
1141 {
1142   return RenderingAddOn::Get().IsValid() ? RenderingAddOn::Get().GetGeometry(textureId, frontElements, backElements) : Geometry();
1143 }
1144
1145 void TextureManager::EmitLoadComplete(TextureUploadObserver* observer, TextureManager::TextureInfo& textureInfo, const bool& success)
1146 {
1147   if(textureInfo.storageType == StorageType::RETURN_PIXEL_BUFFER)
1148   {
1149     observer->LoadComplete(success, TextureUploadObserver::TextureInformation(TextureUploadObserver::ReturnType::PIXEL_BUFFER, textureInfo.pixelBuffer, textureInfo.url.GetUrl(), textureInfo.preMultiplied));
1150   }
1151   else if(textureInfo.isAnimatedImageFormat)
1152   {
1153     observer->LoadComplete(success, TextureUploadObserver::TextureInformation(TextureUploadObserver::ReturnType::ANIMATED_IMAGE_TEXTURE, textureInfo.textureId, textureInfo.frameCount, textureInfo.frameInterval));
1154   }
1155   else
1156   {
1157     observer->LoadComplete(success, TextureUploadObserver::TextureInformation(TextureUploadObserver::ReturnType::TEXTURE, textureInfo.textureId, textureInfo.textureSet, (textureInfo.useAtlas == UseAtlas::USE_ATLAS) ? true : false, textureInfo.atlasRect, textureInfo.preMultiplied));
1158   }
1159 }
1160
1161 } // namespace Internal
1162
1163 } // namespace Toolkit
1164
1165 } // namespace Dali