X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=dali-toolkit%2Finternal%2Fvisuals%2Fnpatch-loader.cpp;h=4c6471ef6100e5834c8a0bcb690350521b9d75b7;hb=e3cb09bfd9a25de3fa35db1b2c3082bcb838d700;hp=2550001067b70ffeb87d02d2465192ad59182369;hpb=10f0460155a75c3829242df27171a4f3161385b1;p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git

diff --git a/dali-toolkit/internal/visuals/npatch-loader.cpp b/dali-toolkit/internal/visuals/npatch-loader.cpp
index 2550001..4c6471e 100644
--- a/dali-toolkit/internal/visuals/npatch-loader.cpp
+++ b/dali-toolkit/internal/visuals/npatch-loader.cpp
@@ -1,5 +1,5 @@
- /*
- * Copyright (c) 2020 Samsung Electronics Co., Ltd.
+/*
+ * Copyright (c) 2022 Samsung Electronics Co., Ltd.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,186 +27,225 @@
 
 namespace Dali
 {
-
 namespace Toolkit
 {
-
 namespace Internal
 {
+namespace
+{
+constexpr auto INVALID_CACHE_INDEX = int32_t{-1}; ///< Invalid Cache index
+constexpr auto UNINITIALIZED_ID    = int32_t{0};  ///< uninitialised id, use to initialize ids
 
-namespace NPatchBuffer
+} // Anonymous namespace
+
+NPatchLoader::NPatchLoader()
+: mCurrentNPatchDataId(0)
 {
+}
 
-void SetLoadedNPatchData( NPatchLoader::Data* data, Devel::PixelBuffer& pixelBuffer )
+NPatchLoader::~NPatchLoader()
 {
-  if( data->border == Rect< int >( 0, 0, 0, 0 ) )
-  {
-    NPatchUtility::ParseBorders( pixelBuffer, data->stretchPixelsX, data->stretchPixelsY );
+}
 
-    // Crop the image
-    pixelBuffer.Crop( 1, 1, pixelBuffer.GetWidth() - 2, pixelBuffer.GetHeight() - 2 );
-  }
-  else
-  {
-    data->stretchPixelsX.PushBack( Uint16Pair( data->border.left, ( (pixelBuffer.GetWidth() >= static_cast< unsigned int >( data->border.right )) ? pixelBuffer.GetWidth() - data->border.right : 0 ) ) );
-    data->stretchPixelsY.PushBack( Uint16Pair( data->border.top, ( (pixelBuffer.GetHeight() >= static_cast< unsigned int >( data->border.bottom )) ? pixelBuffer.GetHeight() - data->border.bottom : 0 ) ) );
-  }
+NPatchData::NPatchDataId NPatchLoader::GenerateUniqueNPatchDataId()
+{
+  return mCurrentNPatchDataId++;
+}
+
+std::size_t NPatchLoader::Load(TextureManager& textureManager, TextureUploadObserver* textureObserver, const VisualUrl& url, const Rect<int>& border, bool& preMultiplyOnLoad, bool synchronousLoading)
+{
+  NPatchData* data = GetNPatchData(url, border, preMultiplyOnLoad);
 
-  data->croppedWidth = pixelBuffer.GetWidth();
-  data->croppedHeight = pixelBuffer.GetHeight();
+  DALI_ASSERT_ALWAYS(data && "NPatchData creation failed!");
 
-  // Create opacity map
-  data->renderingMap = RenderingAddOn::Get().IsValid() ? RenderingAddOn::Get().BuildNPatch(pixelBuffer, data ) : nullptr;
+  if(data->GetLoadingState() == NPatchData::LoadingState::LOAD_COMPLETE)
+  {
+    if(!synchronousLoading)
+    {
+      // NotifyObserver already done, so
+      // data will not iterate observer list.
+      // We need to call LoadComplete directly.
+      data->NotifyObserver(textureObserver, true);
+    }
+  }
+  else // if NOT_STARTED or LOADING or LOAD_FAILED, try to reload.
+  {
+    if(!synchronousLoading)
+    {
+      data->AddObserver(textureObserver);
+      // If still LOADING and async, don't need to request reload. Fast return.
+      if(data->GetLoadingState() == NPatchData::LoadingState::LOADING)
+      {
+        return data->GetId();
+      }
+    }
 
-  PixelData pixels = Devel::PixelBuffer::Convert( pixelBuffer ); // takes ownership of buffer
+    data->SetLoadingState(NPatchData::LoadingState::LOADING);
 
-  Texture texture = Texture::New( TextureType::TEXTURE_2D, pixels.GetPixelFormat(), pixels.GetWidth(), pixels.GetHeight() );
-  texture.Upload( pixels );
+    auto preMultiplyOnLoading = preMultiplyOnLoad ? TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD
+                                                  : TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
 
-  data->textureSet = TextureSet::New();
-  data->textureSet.SetTexture( 0u, texture );
+    Devel::PixelBuffer pixelBuffer = textureManager.LoadPixelBuffer(url, Dali::ImageDimensions(), FittingMode::DEFAULT, SamplingMode::BOX_THEN_LINEAR, synchronousLoading, data, true, preMultiplyOnLoading);
 
-  data->loadCompleted = true;
+    if(pixelBuffer)
+    {
+      preMultiplyOnLoad = (preMultiplyOnLoading == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD) ? true : false;
+      data->SetLoadedNPatchData(pixelBuffer, preMultiplyOnLoad);
+    }
+    else if(synchronousLoading)
+    {
+      data->SetLoadingState(NPatchData::LoadingState::LOAD_FAILED);
+    }
+  }
+  return data->GetId();
 }
 
-} // namespace NPatchBuffer
-
-NPatchLoader::Data::~Data()
+int32_t NPatchLoader::GetCacheIndexFromId(const NPatchData::NPatchDataId id)
 {
-  // If there is an opacity map, it has to be destroyed using addon call
-  if( renderingMap )
+  const unsigned int size = mCache.size();
+
+  for(unsigned int i = 0; i < size; ++i)
   {
-    RenderingAddOn::Get().DestroyNPatch( renderingMap );
+    if(mCache[i].mData->GetId() == id)
+    {
+      return i;
+    }
   }
+
+  return INVALID_CACHE_INDEX;
 }
 
-NPatchLoader::NPatchLoader()
+bool NPatchLoader::GetNPatchData(const NPatchData::NPatchDataId id, const NPatchData*& data)
 {
+  int32_t cacheIndex = GetCacheIndexFromId(id);
+  if(cacheIndex != INVALID_CACHE_INDEX)
+  {
+    data = mCache[cacheIndex].mData;
+    return true;
+  }
+  data = nullptr;
+  return false;
 }
 
-NPatchLoader::~NPatchLoader()
+void NPatchLoader::Remove(std::size_t id, TextureUploadObserver* textureObserver)
 {
+  int32_t cacheIndex = GetCacheIndexFromId(id);
+  if(cacheIndex == INVALID_CACHE_INDEX)
+  {
+    return;
+  }
+
+  NPatchInfo& info(mCache[cacheIndex]);
+
+  info.mData->RemoveObserver(textureObserver);
+
+  if(--info.mReferenceCount <= 0)
+  {
+    mCache.erase(mCache.begin() + cacheIndex);
+  }
 }
 
-std::size_t NPatchLoader::Load( TextureManager& textureManager, TextureUploadObserver* textureObserver, const std::string& url, const Rect< int >& border, bool& preMultiplyOnLoad, bool synchronousLoading )
+NPatchData* NPatchLoader::GetNPatchData(const VisualUrl& url, const Rect<int>& border, bool& preMultiplyOnLoad)
 {
-  std::size_t hash = CalculateHash( url );
-  OwnerContainer< Data* >::SizeType index = UNINITIALIZED_ID;
-  const OwnerContainer< Data* >::SizeType count = mCache.Count();
-  int cachedIndex = -1;
-  Data* data;
+  std::size_t                              hash  = CalculateHash(url.GetUrl());
+  std::vector<NPatchInfo>::size_type       index = UNINITIALIZED_ID;
+  const std::vector<NPatchInfo>::size_type count = mCache.size();
+
+  NPatchInfo* infoPtr = nullptr;
 
-  for( ; index < count; ++index )
+  for(; index < count; ++index)
   {
-    if( mCache[ index ]->hash == hash )
+    if(mCache[index].mData->GetHash() == hash)
     {
       // hash match, check url as well in case of hash collision
-      if( mCache[ index ]->url == url )
+      if(mCache[index].mData->GetUrl().GetUrl() == url.GetUrl())
       {
-        // Use cached data
-        if( mCache[ index ]->border == border )
+        // Use cached data. Need to fast-out return.
+        if(mCache[index].mData->GetBorder() == border)
         {
-          if( mCache[ index ]->loadCompleted )
-          {
-            return index + 1u; // valid indices are from 1 onwards
-          }
-          mCache[ index ]->observerList.PushBack( textureObserver );
-          data = mCache[ index ];
-          return index + 1u; // valid indices are from 1 onwards
+          mCache[index].mReferenceCount++;
+          return mCache[index].mData;
         }
         else
         {
-          if( mCache[ index ]->loadCompleted )
+          if(mCache[index].mData->GetLoadingState() == NPatchData::LoadingState::LOAD_COMPLETE)
           {
-            // Same url but border is different - use the existing texture
-            Data* data = new Data();
-            data->hash = hash;
-            data->url = url;
-            data->croppedWidth = mCache[ index ]->croppedWidth;
-            data->croppedHeight = mCache[ index ]->croppedHeight;
-
-            data->textureSet = mCache[ index ]->textureSet;
-
-            NPatchUtility::StretchRanges stretchRangesX;
-            stretchRangesX.PushBack( Uint16Pair( border.left, ( (data->croppedWidth >= static_cast< unsigned int >( border.right )) ? data->croppedWidth - border.right : 0 ) ) );
-
-            NPatchUtility::StretchRanges stretchRangesY;
-            stretchRangesY.PushBack( Uint16Pair( border.top, ( (data->croppedHeight >= static_cast< unsigned int >( border.bottom )) ? data->croppedHeight - border.bottom : 0 ) ) );
-
-            data->stretchPixelsX = stretchRangesX;
-            data->stretchPixelsY = stretchRangesY;
-            data->border = border;
-
-            data->loadCompleted = mCache[ index ]->loadCompleted;
-
-            mCache.PushBack( data );
-
-            return mCache.Count(); // valid ids start from 1u
+            // If we only found LOAD_FAILED case, replace current data. We can reuse texture
+            if(infoPtr == nullptr || infoPtr->mData->GetLoadingState() != NPatchData::LoadingState::LOAD_COMPLETE)
+            {
+              infoPtr = &mCache[index];
+            }
+          }
+          // Still loading pixel buffer. We cannot reuse cached texture yet. Skip checking
+          else if(mCache[index].mData->GetLoadingState() == NPatchData::LoadingState::LOADING)
+          {
+            continue;
+          }
+          // if LOAD_FAILED, reuse this cached NPatchData, and try to load again.
+          else
+          {
+            if(infoPtr == nullptr)
+            {
+              infoPtr = &mCache[index];
+            }
           }
         }
       }
     }
   }
 
-  if( cachedIndex == -1 )
+  // If this is new image loading, make new cache data
+  if(infoPtr == nullptr)
   {
-    data = new Data();
-    data->loadCompleted = false;
-    data->hash = hash;
-    data->url = url;
-    data->border = border;
-
-    mCache.PushBack( data );
-
-    cachedIndex = mCache.Count();
+    NPatchInfo info(new NPatchData());
+    info.mData->SetId(GenerateUniqueNPatchDataId());
+    info.mData->SetHash(hash);
+    info.mData->SetUrl(url);
+    info.mData->SetBorder(border);
+    info.mData->SetPreMultiplyOnLoad(preMultiplyOnLoad);
+
+    mCache.emplace_back(std::move(info));
+    infoPtr = &mCache.back();
   }
+  // Else if LOAD_COMPLETE, Same url but border is different - use the existing texture
+  else if(infoPtr->mData->GetLoadingState() == NPatchData::LoadingState::LOAD_COMPLETE)
+  {
+    NPatchInfo info(new NPatchData());
 
-  auto preMultiplyOnLoading = preMultiplyOnLoad ? TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD
-                                                : TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
-  Devel::PixelBuffer pixelBuffer = textureManager.LoadPixelBuffer( url, Dali::ImageDimensions(), FittingMode::DEFAULT,
-                                                                   SamplingMode::BOX_THEN_LINEAR, synchronousLoading,
-                                                                   textureObserver, true, preMultiplyOnLoading );
+    info.mData->SetId(GenerateUniqueNPatchDataId());
+    info.mData->SetHash(hash);
+    info.mData->SetUrl(url);
+    info.mData->SetCroppedWidth(infoPtr->mData->GetCroppedWidth());
+    info.mData->SetCroppedHeight(infoPtr->mData->GetCroppedHeight());
 
-  if( pixelBuffer )
-  {
-    NPatchBuffer::SetLoadedNPatchData( data, pixelBuffer );
-    preMultiplyOnLoad = ( preMultiplyOnLoading == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD ) ? true : false;
-  }
+    info.mData->SetTextures(infoPtr->mData->GetTextures());
 
-  return cachedIndex;
-}
+    NPatchUtility::StretchRanges stretchRangesX;
+    stretchRangesX.PushBack(Uint16Pair(border.left, ((info.mData->GetCroppedWidth() >= static_cast<unsigned int>(border.right)) ? info.mData->GetCroppedHeight() - border.right : 0)));
 
-void NPatchLoader::SetNPatchData( bool loadSuccess, std::size_t id, Devel::PixelBuffer& pixelBuffer, const Internal::VisualUrl& url, bool preMultiplied )
-{
-  Data* data;
-  data = mCache[ id - 1u ];
+    NPatchUtility::StretchRanges stretchRangesY;
+    stretchRangesY.PushBack(Uint16Pair(border.top, ((info.mData->GetCroppedWidth() >= static_cast<unsigned int>(border.bottom)) ? info.mData->GetCroppedHeight() - border.bottom : 0)));
 
-  // To prevent recursion.
-  // data->loadCompleted will be set true in the NPatchBuffer::SetLoadedNPatchData when the first observer called this method.
-  if( data->loadCompleted )
-  {
-    return;
-  }
+    info.mData->SetStretchPixelsX(stretchRangesX);
+    info.mData->SetStretchPixelsY(stretchRangesY);
+    info.mData->SetBorder(border);
 
-  NPatchBuffer::SetLoadedNPatchData( data, pixelBuffer );
+    info.mData->SetPreMultiplyOnLoad(infoPtr->mData->IsPreMultiplied());
 
-  while( data->observerList.Count() )
-  {
-    TextureUploadObserver* observer = data->observerList[0];
-    observer->LoadComplete( loadSuccess, Devel::PixelBuffer(), url, preMultiplied );
-    data->observerList.Erase( data->observerList.begin() );
-  }
-}
+    info.mData->SetLoadingState(NPatchData::LoadingState::LOAD_COMPLETE);
 
-bool NPatchLoader::GetNPatchData( std::size_t id, const Data*& data )
-{
-  if( ( id > UNINITIALIZED_ID )&&( id <= mCache.Count() ) )
+    mCache.emplace_back(std::move(info));
+    infoPtr = &mCache.back();
+  }
+  // Else, LOAD_FAILED. just increase reference so we can reuse it.
+  else
   {
-    data = mCache[ id - 1u ]; // id's start from 1u
-    return true;
+    infoPtr->mReferenceCount++;
   }
-  data = NULL;
-  return false;
+
+  DALI_ASSERT_ALWAYS(infoPtr && "NPatchInfo creation failed!");
+
+  return infoPtr->mData;
 }
 
 } // namespace Internal