- /*
- * 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.
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
+constexpr auto UNINITIALIZED_ID = int32_t{0}; ///< uninitialised id, use to initialize ids
} // Anonymous namespace
return mCurrentNPatchDataId++;
}
-std::size_t NPatchLoader::Load( TextureManager& textureManager, TextureUploadObserver* textureObserver, const std::string& url, const Rect< int >& border, bool& preMultiplyOnLoad, bool synchronousLoading )
+std::size_t NPatchLoader::Load(TextureManager& textureManager, TextureUploadObserver* textureObserver, const VisualUrl& url, const Rect<int>& border, bool& preMultiplyOnLoad, bool synchronousLoading)
{
- std::size_t hash = CalculateHash( url );
- OwnerContainer< NPatchData* >::SizeType index = UNINITIALIZED_ID;
- const OwnerContainer< NPatchData* >::SizeType count = mCache.Count();
+ NPatchData* data = GetNPatchData(url, border, preMultiplyOnLoad);
+
+ DALI_ASSERT_ALWAYS(data && "NPatchData creation failed!");
- for( ; index < count; ++index )
+ if(data->GetLoadingState() == NPatchData::LoadingState::LOAD_COMPLETE)
{
- if( mCache[ index ]->GetHash() == hash )
+ if(!synchronousLoading)
{
- // hash match, check url as well in case of hash collision
- if(mCache[ index ]->GetUrl() == url)
+ // 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)
{
- // Use cached data
- if( mCache[ index ]->GetBorder() == border )
- {
- if( mCache[ index ]->GetLoadingState() == NPatchData::LoadingState::LOADING )
- {
- mCache[ index ]->AddObserver( textureObserver );
- }
- return mCache[ index ]->GetId(); // valid indices are from 1 onwards
- }
- else
- {
- if( mCache[ index ]->GetLoadingState() == NPatchData::LoadingState::LOAD_COMPLETE )
- {
- // Same url but border is different - use the existing texture
- NPatchData* newData = new NPatchData();
- newData->SetId(GenerateUniqueNPatchDataId());
- newData->SetHash(hash);
- newData->SetUrl(url);
- newData->SetCroppedWidth(mCache[ index ]->GetCroppedWidth());
- newData->SetCroppedHeight(mCache[ index ]->GetCroppedHeight());
-
- newData->SetTextures(mCache[ index ]->GetTextures());
-
- NPatchUtility::StretchRanges stretchRangesX;
- stretchRangesX.PushBack( Uint16Pair( border.left, ( (newData->GetCroppedWidth() >= static_cast< unsigned int >( border.right )) ? newData->GetCroppedHeight() - border.right : 0 ) ) );
-
- NPatchUtility::StretchRanges stretchRangesY;
- stretchRangesY.PushBack( Uint16Pair( border.top, ( (newData->GetCroppedWidth() >= static_cast< unsigned int >( border.bottom )) ? newData->GetCroppedHeight() - border.bottom : 0 ) ) );
-
- newData->SetStretchPixelsX(stretchRangesX);
- newData->SetStretchPixelsY(stretchRangesY);
- newData->SetBorder(border);
+ return data->GetId();
+ }
+ }
- newData->SetPreMultiplyOnLoad(mCache[ index ]->IsPreMultiplied());
+ data->SetLoadingState(NPatchData::LoadingState::LOADING);
- newData->SetLoadingState(NPatchData::LoadingState::LOAD_COMPLETE);
- newData->AddObserver( textureObserver );
+ auto preMultiplyOnLoading = preMultiplyOnLoad ? TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD
+ : TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
- mCache.PushBack( newData );
+ Devel::PixelBuffer pixelBuffer = textureManager.LoadPixelBuffer(url, Dali::ImageDimensions(), FittingMode::DEFAULT, SamplingMode::BOX_THEN_LINEAR, synchronousLoading, data, true, preMultiplyOnLoading);
- return newData->GetId(); // valid ids start from 1u
- }
- }
- }
+ if(pixelBuffer)
+ {
+ preMultiplyOnLoad = (preMultiplyOnLoading == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD) ? true : false;
+ data->SetLoadedNPatchData(pixelBuffer, preMultiplyOnLoad);
+ }
+ else if(synchronousLoading)
+ {
+ data->SetLoadingState(NPatchData::LoadingState::LOAD_FAILED);
}
}
-
- // If this is new image loading, make new cache data
- NPatchData* data;
- data = new NPatchData();
- data->SetId(GenerateUniqueNPatchDataId());
- data->SetHash(hash);
- data->SetUrl(url);
- data->SetBorder(border);
- data->SetPreMultiplyOnLoad(preMultiplyOnLoad);
- data->AddObserver(textureObserver);
- mCache.PushBack(data);
-
- 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,
- data, true, preMultiplyOnLoading );
-
- if( pixelBuffer )
- {
- preMultiplyOnLoad = ( preMultiplyOnLoading == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD ) ? true : false;
- data->SetLoadedNPatchData( pixelBuffer, preMultiplyOnLoad );
- }
-
return data->GetId();
}
-int32_t NPatchLoader::GetCacheIndexFromId( const NPatchData::NPatchDataId id )
+int32_t NPatchLoader::GetCacheIndexFromId(const NPatchData::NPatchDataId id)
{
- const unsigned int size = mCache.Count();
+ const unsigned int size = mCache.size();
- for( unsigned int i = 0; i < size; ++i )
+ for(unsigned int i = 0; i < size; ++i)
{
- if( mCache[i]->GetId() == id )
+ if(mCache[i].mData->GetId() == id)
{
return i;
}
return INVALID_CACHE_INDEX;
}
-bool NPatchLoader::GetNPatchData( const NPatchData::NPatchDataId id, const NPatchData*& data )
+bool NPatchLoader::GetNPatchData(const NPatchData::NPatchDataId id, const NPatchData*& data)
{
int32_t cacheIndex = GetCacheIndexFromId(id);
- if( cacheIndex != INVALID_CACHE_INDEX )
+ if(cacheIndex != INVALID_CACHE_INDEX)
{
- data = mCache[cacheIndex];
+ data = mCache[cacheIndex].mData;
return true;
}
data = nullptr;
return false;
}
-void NPatchLoader::Remove( std::size_t id, TextureUploadObserver* textureObserver )
+void NPatchLoader::Remove(std::size_t id, TextureUploadObserver* textureObserver)
{
int32_t cacheIndex = GetCacheIndexFromId(id);
- if( cacheIndex == INVALID_CACHE_INDEX )
+ if(cacheIndex == INVALID_CACHE_INDEX)
{
return;
}
- NPatchData* data;
- data = mCache[cacheIndex];
+ NPatchInfo& info(mCache[cacheIndex]);
- data->RemoveObserver(textureObserver);
+ info.mData->RemoveObserver(textureObserver);
- if(data->GetObserverCount() == 0)
+ if(--info.mReferenceCount <= 0)
{
- mCache.Erase( mCache.Begin() + cacheIndex );
+ mCache.erase(mCache.begin() + cacheIndex);
}
}
+NPatchData* NPatchLoader::GetNPatchData(const VisualUrl& url, const Rect<int>& border, bool& preMultiplyOnLoad)
+{
+ 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)
+ {
+ if(mCache[index].mData->GetHash() == hash)
+ {
+ // hash match, check url as well in case of hash collision
+ if(mCache[index].mData->GetUrl().GetUrl() == url.GetUrl())
+ {
+ // Use cached data. Need to fast-out return.
+ if(mCache[index].mData->GetBorder() == border)
+ {
+ mCache[index].mReferenceCount++;
+ return mCache[index].mData;
+ }
+ else
+ {
+ if(mCache[index].mData->GetLoadingState() == NPatchData::LoadingState::LOAD_COMPLETE)
+ {
+ // 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 this is new image loading, make new cache data
+ if(infoPtr == nullptr)
+ {
+ 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());
+
+ info.mData->SetId(GenerateUniqueNPatchDataId());
+ info.mData->SetHash(hash);
+ info.mData->SetUrl(url);
+ info.mData->SetCroppedWidth(infoPtr->mData->GetCroppedWidth());
+ info.mData->SetCroppedHeight(infoPtr->mData->GetCroppedHeight());
+
+ info.mData->SetTextures(infoPtr->mData->GetTextures());
+
+ NPatchUtility::StretchRanges stretchRangesX;
+ stretchRangesX.PushBack(Uint16Pair(border.left, ((info.mData->GetCroppedWidth() >= static_cast<unsigned int>(border.right)) ? info.mData->GetCroppedHeight() - border.right : 0)));
+
+ NPatchUtility::StretchRanges stretchRangesY;
+ stretchRangesY.PushBack(Uint16Pair(border.top, ((info.mData->GetCroppedWidth() >= static_cast<unsigned int>(border.bottom)) ? info.mData->GetCroppedHeight() - border.bottom : 0)));
+
+ info.mData->SetStretchPixelsX(stretchRangesX);
+ info.mData->SetStretchPixelsY(stretchRangesY);
+ info.mData->SetBorder(border);
+
+ info.mData->SetPreMultiplyOnLoad(infoPtr->mData->IsPreMultiplied());
+
+ info.mData->SetLoadingState(NPatchData::LoadingState::LOAD_COMPLETE);
+
+ mCache.emplace_back(std::move(info));
+ infoPtr = &mCache.back();
+ }
+ // Else, LOAD_FAILED. just increase reference so we can reuse it.
+ else
+ {
+ infoPtr->mReferenceCount++;
+ }
+
+ DALI_ASSERT_ALWAYS(infoPtr && "NPatchInfo creation failed!");
+
+ return infoPtr->mData;
+}
+
} // namespace Internal
} // namespace Toolkit