2 * Copyright (c) 2020 Samsung Electronics Co., Ltd.
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
19 #include <dali-toolkit/internal/visuals/npatch-loader.h>
22 #include <dali/devel-api/common/hash.h>
23 #include <dali/integration-api/debug.h>
34 namespace NPatchBuffer
37 void SetLoadedNPatchData( NPatchLoader::Data* data, Devel::PixelBuffer& pixelBuffer )
39 if( data->border == Rect< int >( 0, 0, 0, 0 ) )
41 NPatchUtility::ParseBorders( pixelBuffer, data->stretchPixelsX, data->stretchPixelsY );
44 pixelBuffer.Crop( 1, 1, pixelBuffer.GetWidth() - 2, pixelBuffer.GetHeight() - 2 );
48 data->stretchPixelsX.PushBack( Uint16Pair( data->border.left, ( (pixelBuffer.GetWidth() >= static_cast< unsigned int >( data->border.right )) ? pixelBuffer.GetWidth() - data->border.right : 0 ) ) );
49 data->stretchPixelsY.PushBack( Uint16Pair( data->border.top, ( (pixelBuffer.GetHeight() >= static_cast< unsigned int >( data->border.bottom )) ? pixelBuffer.GetHeight() - data->border.bottom : 0 ) ) );
52 data->croppedWidth = pixelBuffer.GetWidth();
53 data->croppedHeight = pixelBuffer.GetHeight();
55 PixelData pixels = Devel::PixelBuffer::Convert( pixelBuffer ); // takes ownership of buffer
57 Texture texture = Texture::New( TextureType::TEXTURE_2D, pixels.GetPixelFormat(), pixels.GetWidth(), pixels.GetHeight() );
58 texture.Upload( pixels );
60 data->textureSet = TextureSet::New();
61 data->textureSet.SetTexture( 0u, texture );
63 data->loadCompleted = true;
66 } // namespace NPatchBuffer
68 NPatchLoader::NPatchLoader()
72 NPatchLoader::~NPatchLoader()
76 std::size_t NPatchLoader::Load( TextureManager& textureManager, TextureUploadObserver* textureObserver, const std::string& url, const Rect< int >& border, bool& preMultiplyOnLoad, bool synchronousLoading )
78 std::size_t hash = CalculateHash( url );
79 OwnerContainer< Data* >::SizeType index = UNINITIALIZED_ID;
80 const OwnerContainer< Data* >::SizeType count = mCache.Count();
84 for( ; index < count; ++index )
86 if( mCache[ index ]->hash == hash )
88 // hash match, check url as well in case of hash collision
89 if( mCache[ index ]->url == url )
92 if( mCache[ index ]->border == border )
94 if( mCache[ index ]->loadCompleted )
96 return index + 1u; // valid indices are from 1 onwards
98 data = mCache[ index ];
99 cachedIndex = index + 1u; // valid indices are from 1 onwards
104 if( mCache[ index ]->loadCompleted )
106 // Same url but border is different - use the existing texture
107 Data* data = new Data();
110 data->croppedWidth = mCache[ index ]->croppedWidth;
111 data->croppedHeight = mCache[ index ]->croppedHeight;
113 data->textureSet = mCache[ index ]->textureSet;
115 NPatchUtility::StretchRanges stretchRangesX;
116 stretchRangesX.PushBack( Uint16Pair( border.left, ( (data->croppedWidth >= static_cast< unsigned int >( border.right )) ? data->croppedWidth - border.right : 0 ) ) );
118 NPatchUtility::StretchRanges stretchRangesY;
119 stretchRangesY.PushBack( Uint16Pair( border.top, ( (data->croppedHeight >= static_cast< unsigned int >( border.bottom )) ? data->croppedHeight - border.bottom : 0 ) ) );
121 data->stretchPixelsX = stretchRangesX;
122 data->stretchPixelsY = stretchRangesY;
123 data->border = border;
125 data->loadCompleted = mCache[ index ]->loadCompleted;
127 mCache.PushBack( data );
129 return mCache.Count(); // valid ids start from 1u
136 if( cachedIndex == -1 )
139 data->loadCompleted = false;
142 data->border = border;
144 mCache.PushBack( data );
146 cachedIndex = mCache.Count();
149 auto preMultiplyOnLoading = preMultiplyOnLoad ? TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD
150 : TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
151 Devel::PixelBuffer pixelBuffer = textureManager.LoadPixelBuffer( url, Dali::ImageDimensions(), FittingMode::DEFAULT,
152 SamplingMode::BOX_THEN_LINEAR, synchronousLoading,
153 textureObserver, true, preMultiplyOnLoading );
157 NPatchBuffer::SetLoadedNPatchData( data, pixelBuffer );
158 preMultiplyOnLoad = ( preMultiplyOnLoading == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD ) ? true : false;
164 void NPatchLoader::SetNPatchData( std::size_t id, Devel::PixelBuffer& pixelBuffer )
167 data = mCache[ id - 1u ];
169 if( !data->loadCompleted )
171 NPatchBuffer::SetLoadedNPatchData( data, pixelBuffer );
175 bool NPatchLoader::GetNPatchData( std::size_t id, const Data*& data )
177 if( ( id > UNINITIALIZED_ID )&&( id <= mCache.Count() ) )
179 data = mCache[ id - 1u ]; // id's start from 1u
186 } // namespace Internal
188 } // namespace Toolkit