- /*
- * Copyright (c) 2016 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.
// CLASS HEADER
#include <dali-toolkit/internal/visuals/npatch-loader.h>
-// EXTERNAL HEADER
+// INTERNAL HEADERS
+#include <dali-toolkit/internal/visuals/rendering-addon.h>
+
+// EXTERNAL HEADERS
#include <dali/devel-api/common/hash.h>
-#include <dali/devel-api/images/texture-set-image.h>
+#include <dali/integration-api/debug.h>
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
+
+} // Anonymous namespace
NPatchLoader::NPatchLoader()
+: mCurrentNPatchDataId(0)
{
}
{
}
-std::size_t NPatchLoader::Load( const std::string& url )
+NPatchData::NPatchDataId NPatchLoader::GenerateUniqueNPatchDataId()
{
- std::size_t hash = CalculateHash( url );
- OwnerContainer< Data* >::SizeType index = UNINITIALIZED_ID;
- const OwnerContainer< Data* >::SizeType count = mCache.Count();
- for( ; index < count; ++index )
+ 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);
+
+ DALI_ASSERT_ALWAYS(data && "NPatchData creation failed!");
+
+ if(data->GetLoadingState() == NPatchData::LoadingState::LOAD_COMPLETE)
{
- if( mCache[ index ]->hash == hash )
+ if(!synchronousLoading)
{
- // hash match, check url as well in case of hash collision
- if( mCache[ index ]->url == 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)
{
- return index+1u; // valid indices are from 1 onwards
+ return data->GetId();
}
}
+
+ data->SetLoadingState(NPatchData::LoadingState::LOADING);
+
+ 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);
+ }
+ else if(synchronousLoading)
+ {
+ data->SetLoadingState(NPatchData::LoadingState::LOAD_FAILED);
+ }
}
- // got to the end so no match, decode N patch and append new item to cache
- NinePatchImage ninePatch = NinePatchImage::New( url );
- if( ninePatch )
+ return data->GetId();
+}
+
+int32_t NPatchLoader::GetCacheIndexFromId(const NPatchData::NPatchDataId id)
+{
+ const unsigned int size = mCache.size();
+
+ for(unsigned int i = 0; i < size; ++i)
{
- BufferImage croppedImage = ninePatch.CreateCroppedBufferImage();
- if( croppedImage )
+ if(mCache[i].mData->GetId() == id)
{
- Data* data = new Data();
- data->hash = hash;
- data->url = url;
- data->textureSet = TextureSet::New();
- TextureSetImage( data->textureSet, 0u, croppedImage );
- data->croppedWidth = croppedImage.GetWidth();
- data->croppedHeight = croppedImage.GetHeight();
- data->stretchPixelsX = ninePatch.GetStretchPixelsX();
- data->stretchPixelsY = ninePatch.GetStretchPixelsY();
- mCache.PushBack( data );
-
- return mCache.Count(); // valid ids start from 1u
+ return i;
}
}
- return 0u;
+
+ return INVALID_CACHE_INDEX;
}
-bool NPatchLoader::GetNPatchData( std::size_t id, const Data*& data )
+bool NPatchLoader::GetNPatchData(const NPatchData::NPatchDataId id, const NPatchData*& data)
{
- if( ( id > UNINITIALIZED_ID )&&( id <= mCache.Count() ) )
+ int32_t cacheIndex = GetCacheIndexFromId(id);
+ if(cacheIndex != INVALID_CACHE_INDEX)
{
- data = mCache[ id - 1u ]; // id's start from 1u
+ data = mCache[cacheIndex].mData;
return true;
}
- data = NULL;
+ data = nullptr;
return false;
}
+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);
+ }
+}
+
+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