- /*
- * 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.
// CLASS HEADER
#include <dali-toolkit/internal/visuals/npatch-loader.h>
-// EXTERNAL HEADER
-#include <dali/devel-api/adaptor-framework/image-loading.h>
+// INTERNAL HEADERS
+#include <dali-toolkit/internal/visuals/rendering-addon.h>
+
+// EXTERNAL HEADERS
#include <dali/devel-api/common/hash.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
-namespace NPatchBuffer
+} // Anonymous namespace
+
+NPatchLoader::NPatchLoader()
+: mCurrentNPatchDataId(0)
{
+}
-void GetRedOffsetAndMask( Dali::Pixel::Format pixelFormat, int& byteOffset, int& bitMask )
+NPatchLoader::~NPatchLoader()
{
- switch( pixelFormat )
- {
- case Dali::Pixel::A8:
- case Dali::Pixel::L8:
- case Dali::Pixel::LA88:
- {
- byteOffset = 0;
- bitMask = 0;
- break;
- }
- case Dali::Pixel::RGB888:
- case Dali::Pixel::RGB8888:
- case Dali::Pixel::RGBA8888:
- {
- byteOffset = 0;
- bitMask = 0xFF;
- break;
- }
- case Dali::Pixel::BGR8888:
- case Dali::Pixel::BGRA8888:
- {
- byteOffset = 2;
- bitMask = 0xff;
- break;
- }
- case Dali::Pixel::RGB565:
- {
- byteOffset = 0;
- bitMask = 0xf8;
- break;
- }
- case Dali::Pixel::BGR565:
- {
- byteOffset = 1;
- bitMask = 0x1f;
- break;
- }
- case Dali::Pixel::RGBA4444:
- {
- byteOffset = 0;
- bitMask = 0xf0;
- break;
- }
- case Dali::Pixel::BGRA4444:
- {
- byteOffset = 1;
- bitMask = 0xf0;
- break;
- }
- case Dali::Pixel::RGBA5551:
- {
- byteOffset = 0;
- bitMask = 0xf8;
- break;
- }
- case Dali::Pixel::BGRA5551:
- {
- byteOffset = 1;
- bitMask = 0x1e;
- break;
- }
- case Dali::Pixel::INVALID:
- case Dali::Pixel::COMPRESSED_R11_EAC:
- case Dali::Pixel::COMPRESSED_SIGNED_R11_EAC:
- case Dali::Pixel::COMPRESSED_RG11_EAC:
- case Dali::Pixel::COMPRESSED_SIGNED_RG11_EAC:
- case Dali::Pixel::COMPRESSED_RGB8_ETC2:
- case Dali::Pixel::COMPRESSED_SRGB8_ETC2:
- case Dali::Pixel::COMPRESSED_RGB8_ETC1:
- case Dali::Pixel::COMPRESSED_RGB_PVRTC_4BPPV1:
- case Dali::Pixel::COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
- case Dali::Pixel::COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
- case Dali::Pixel::COMPRESSED_RGBA8_ETC2_EAC:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_4x4_KHR:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_5x4_KHR:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_5x5_KHR:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_6x5_KHR:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_6x6_KHR:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_8x5_KHR:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_8x6_KHR:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_8x8_KHR:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_10x5_KHR:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_10x6_KHR:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_10x8_KHR:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_10x10_KHR:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_12x10_KHR:
- case Dali::Pixel::COMPRESSED_RGBA_ASTC_12x12_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR:
- case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR:
- {
- DALI_LOG_ERROR("Pixel formats for compressed images are not compatible with simple masking-out of per-pixel alpha.\n");
- byteOffset=0;
- bitMask=0;
- break;
- }
- case Dali::Pixel::RGB16F:
- case Dali::Pixel::RGB32F:
- {
- DALI_LOG_ERROR("Pixel format not compatible.\n");
- byteOffset=0;
- bitMask=0;
- break;
- }
- }
}
-Uint16Pair ParseRange( unsigned int& index, unsigned int width, unsigned char*& pixel, unsigned int pixelStride, int testByte, int testBits, int testValue )
+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)
{
- unsigned int start = 0xFFFF;
- for( ; index < width; ++index, pixel += pixelStride )
+ NPatchData* data = GetNPatchData(url, border, preMultiplyOnLoad);
+
+ DALI_ASSERT_ALWAYS(data && "NPatchData creation failed!");
+
+ if(data->GetLoadingState() == NPatchData::LoadingState::LOAD_COMPLETE)
{
- if( ( pixel[ testByte ] & testBits ) == testValue )
+ if(!synchronousLoading)
{
- start = index;
- ++index;
- pixel += pixelStride;
- break;
+ // NotifyObserver already done, so
+ // data will not iterate observer list.
+ // We need to call LoadComplete directly.
+ data->NotifyObserver(textureObserver, true);
}
}
-
- unsigned int end = width;
- for( ; index < width; ++index, pixel += pixelStride )
+ else // if NOT_STARTED or LOADING or LOAD_FAILED, try to reload.
{
- if( ( pixel[ testByte ] & testBits ) != testValue )
+ if(!synchronousLoading)
{
- end = index;
- ++index;
- pixel += pixelStride;
- break;
+ 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();
+ }
}
- }
- return Uint16Pair( start, end );
-}
-
-void ParseBorders( Devel::PixelBuffer& pixelBuffer, NPatchLoader::Data* data )
-{
- data->stretchPixelsX.Clear();
- data->stretchPixelsY.Clear();
-
- Pixel::Format pixelFormat = pixelBuffer.GetPixelFormat();
+ data->SetLoadingState(NPatchData::LoadingState::LOADING);
- int alphaByte = 0;
- int alphaBits = 0;
- Pixel::GetAlphaOffsetAndMask( pixelFormat, alphaByte, alphaBits );
-
- int testByte = alphaByte;
- int testBits = alphaBits;
- int testValue = alphaBits; // Opaque == stretch
- if( !alphaBits )
- {
- GetRedOffsetAndMask( pixelFormat, testByte, testBits );
- testValue = 0; // Black == stretch
- }
+ auto preMultiplyOnLoading = preMultiplyOnLoad ? TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD
+ : TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
- unsigned int bytesPerPixel = Pixel::GetBytesPerPixel( pixelFormat );
- unsigned int width = pixelBuffer.GetWidth();
- unsigned int height = pixelBuffer.GetHeight();
- unsigned char* srcPixels = pixelBuffer.GetBuffer();
- unsigned int srcStride = width * bytesPerPixel;
+ Devel::PixelBuffer pixelBuffer = textureManager.LoadPixelBuffer(url, Dali::ImageDimensions(), FittingMode::DEFAULT, SamplingMode::BOX_THEN_LINEAR, synchronousLoading, data, true, preMultiplyOnLoading);
- // TOP
- unsigned char* top = srcPixels + bytesPerPixel;
- unsigned int index = 0;
-
- for( ; index < width - 2; )
- {
- Uint16Pair range = ParseRange( index, width - 2, top, bytesPerPixel, testByte, testBits, testValue );
- if( range.GetX() != 0xFFFF )
+ if(pixelBuffer)
+ {
+ preMultiplyOnLoad = (preMultiplyOnLoading == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD) ? true : false;
+ data->SetLoadedNPatchData(pixelBuffer, preMultiplyOnLoad);
+ }
+ else if(synchronousLoading)
{
- data->stretchPixelsX.PushBack( range );
+ data->SetLoadingState(NPatchData::LoadingState::LOAD_FAILED);
}
}
+ return data->GetId();
+}
+
+int32_t NPatchLoader::GetCacheIndexFromId(const NPatchData::NPatchDataId id)
+{
+ const unsigned int size = mCache.size();
- // LEFT
- unsigned char* left = srcPixels + srcStride;
- index = 0;
- for( ; index < height - 2; )
+ for(unsigned int i = 0; i < size; ++i)
{
- Uint16Pair range = ParseRange( index, height - 2, left, srcStride, testByte, testBits, testValue );
- if( range.GetX() != 0xFFFF )
+ if(mCache[i].mData->GetId() == id)
{
- data->stretchPixelsY.PushBack( range );
+ return i;
}
}
- // If there are no stretch pixels then make the entire image stretchable
- if( data->stretchPixelsX.Size() == 0 )
- {
- data->stretchPixelsX.PushBack( Uint16Pair( 0, width - 2 ) );
- }
- if( data->stretchPixelsY.Size() == 0 )
- {
- data->stretchPixelsY.PushBack( Uint16Pair( 0, height - 2 ) );
- }
+ return INVALID_CACHE_INDEX;
}
-void SetLoadedNPatchData( NPatchLoader::Data* data, Devel::PixelBuffer& pixelBuffer )
+bool NPatchLoader::GetNPatchData(const NPatchData::NPatchDataId id, const NPatchData*& data)
{
- if( data->border == Rect< int >( 0, 0, 0, 0 ) )
+ int32_t cacheIndex = GetCacheIndexFromId(id);
+ if(cacheIndex != INVALID_CACHE_INDEX)
{
- NPatchBuffer::ParseBorders( pixelBuffer, data );
-
- // Crop the image
- pixelBuffer.Crop( 1, 1, pixelBuffer.GetWidth() - 2, pixelBuffer.GetHeight() - 2 );
+ data = mCache[cacheIndex].mData;
+ return true;
}
- else
+ data = nullptr;
+ return false;
+}
+
+void NPatchLoader::Remove(std::size_t id, TextureUploadObserver* textureObserver)
+{
+ int32_t cacheIndex = GetCacheIndexFromId(id);
+ if(cacheIndex == INVALID_CACHE_INDEX)
{
- 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 ) ) );
+ return;
}
- data->croppedWidth = pixelBuffer.GetWidth();
- data->croppedHeight = pixelBuffer.GetHeight();
-
- PixelData pixels = Devel::PixelBuffer::Convert( pixelBuffer ); // takes ownership of buffer
-
- Texture texture = Texture::New( TextureType::TEXTURE_2D, pixels.GetPixelFormat(), pixels.GetWidth(), pixels.GetHeight() );
- texture.Upload( pixels );
+ NPatchInfo& info(mCache[cacheIndex]);
- data->textureSet = TextureSet::New();
- data->textureSet.SetTexture( 0u, texture );
+ info.mData->RemoveObserver(textureObserver);
- data->loadCompleted = true;
+ if(--info.mReferenceCount <= 0)
+ {
+ mCache.erase(mCache.begin() + cacheIndex);
+ }
}
-} // namespace NPatchBuffer
-
-NPatchLoader::NPatchLoader()
+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();
-NPatchLoader::~NPatchLoader()
-{
-}
-
-std::size_t NPatchLoader::Load( TextureManager& textureManager, TextureUploadObserver* textureObserver, const std::string& url, const Rect< int >& border, bool& preMultiplyOnLoad, bool synchronousLoading )
-{
- std::size_t hash = CalculateHash( url );
- OwnerContainer< Data* >::SizeType index = UNINITIALIZED_ID;
- const OwnerContainer< Data* >::SizeType count = mCache.Count();
- int cachedIndex = -1;
- Data* data;
+ 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
- }
- data = mCache[ index ];
- cachedIndex = index + 1u; // valid indices are from 1 onwards
- break;
+ 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;
-
- StretchRanges stretchRangesX;
- stretchRangesX.PushBack( Uint16Pair( border.left, ( (data->croppedWidth >= static_cast< unsigned int >( border.right )) ? data->croppedWidth - border.right : 0 ) ) );
-
- 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;
+ 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());
- mCache.PushBack( data );
+ info.mData->SetId(GenerateUniqueNPatchDataId());
+ info.mData->SetHash(hash);
+ info.mData->SetUrl(url);
+ info.mData->SetCroppedWidth(infoPtr->mData->GetCroppedWidth());
+ info.mData->SetCroppedHeight(infoPtr->mData->GetCroppedHeight());
- cachedIndex = mCache.Count();
- }
+ info.mData->SetTextures(infoPtr->mData->GetTextures());
- 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 );
+ NPatchUtility::StretchRanges stretchRangesX;
+ stretchRangesX.PushBack(Uint16Pair(border.left, ((info.mData->GetCroppedWidth() >= static_cast<unsigned int>(border.right)) ? info.mData->GetCroppedHeight() - border.right : 0)));
- if( pixelBuffer )
- {
- NPatchBuffer::SetLoadedNPatchData( data, pixelBuffer );
- preMultiplyOnLoad = ( preMultiplyOnLoading == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD ) ? true : false;
- }
+ NPatchUtility::StretchRanges stretchRangesY;
+ stretchRangesY.PushBack(Uint16Pair(border.top, ((info.mData->GetCroppedWidth() >= static_cast<unsigned int>(border.bottom)) ? info.mData->GetCroppedHeight() - border.bottom : 0)));
- return cachedIndex;
-}
+ info.mData->SetStretchPixelsX(stretchRangesX);
+ info.mData->SetStretchPixelsY(stretchRangesY);
+ info.mData->SetBorder(border);
-void NPatchLoader::SetNPatchData( std::size_t id, Devel::PixelBuffer& pixelBuffer )
-{
- Data* data;
- data = mCache[ id - 1u ];
+ info.mData->SetPreMultiplyOnLoad(infoPtr->mData->IsPreMultiplied());
- if( !data->loadCompleted )
- {
- NPatchBuffer::SetLoadedNPatchData( data, pixelBuffer );
- }
-}
+ 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