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/adaptor-framework/image-loading.h>
23 #include <dali/devel-api/common/hash.h>
24 #include <dali/integration-api/debug.h>
35 namespace NPatchBuffer
38 void GetRedOffsetAndMask( Dali::Pixel::Format pixelFormat, int& byteOffset, int& bitMask )
44 case Dali::Pixel::LA88:
50 case Dali::Pixel::RGB888:
51 case Dali::Pixel::RGB8888:
52 case Dali::Pixel::RGBA8888:
58 case Dali::Pixel::BGR8888:
59 case Dali::Pixel::BGRA8888:
65 case Dali::Pixel::RGB565:
71 case Dali::Pixel::BGR565:
77 case Dali::Pixel::RGBA4444:
83 case Dali::Pixel::BGRA4444:
89 case Dali::Pixel::RGBA5551:
95 case Dali::Pixel::BGRA5551:
101 case Dali::Pixel::INVALID:
102 case Dali::Pixel::COMPRESSED_R11_EAC:
103 case Dali::Pixel::COMPRESSED_SIGNED_R11_EAC:
104 case Dali::Pixel::COMPRESSED_RG11_EAC:
105 case Dali::Pixel::COMPRESSED_SIGNED_RG11_EAC:
106 case Dali::Pixel::COMPRESSED_RGB8_ETC2:
107 case Dali::Pixel::COMPRESSED_SRGB8_ETC2:
108 case Dali::Pixel::COMPRESSED_RGB8_ETC1:
109 case Dali::Pixel::COMPRESSED_RGB_PVRTC_4BPPV1:
110 case Dali::Pixel::COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
111 case Dali::Pixel::COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
112 case Dali::Pixel::COMPRESSED_RGBA8_ETC2_EAC:
113 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
114 case Dali::Pixel::COMPRESSED_RGBA_ASTC_4x4_KHR:
115 case Dali::Pixel::COMPRESSED_RGBA_ASTC_5x4_KHR:
116 case Dali::Pixel::COMPRESSED_RGBA_ASTC_5x5_KHR:
117 case Dali::Pixel::COMPRESSED_RGBA_ASTC_6x5_KHR:
118 case Dali::Pixel::COMPRESSED_RGBA_ASTC_6x6_KHR:
119 case Dali::Pixel::COMPRESSED_RGBA_ASTC_8x5_KHR:
120 case Dali::Pixel::COMPRESSED_RGBA_ASTC_8x6_KHR:
121 case Dali::Pixel::COMPRESSED_RGBA_ASTC_8x8_KHR:
122 case Dali::Pixel::COMPRESSED_RGBA_ASTC_10x5_KHR:
123 case Dali::Pixel::COMPRESSED_RGBA_ASTC_10x6_KHR:
124 case Dali::Pixel::COMPRESSED_RGBA_ASTC_10x8_KHR:
125 case Dali::Pixel::COMPRESSED_RGBA_ASTC_10x10_KHR:
126 case Dali::Pixel::COMPRESSED_RGBA_ASTC_12x10_KHR:
127 case Dali::Pixel::COMPRESSED_RGBA_ASTC_12x12_KHR:
128 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR:
129 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR:
130 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR:
131 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR:
132 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR:
133 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR:
134 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR:
135 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR:
136 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR:
137 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR:
138 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR:
139 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR:
140 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR:
141 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR:
143 DALI_LOG_ERROR("Pixel formats for compressed images are not compatible with simple masking-out of per-pixel alpha.\n");
148 case Dali::Pixel::RGB16F:
149 case Dali::Pixel::RGB32F:
150 case Dali::Pixel::DEPTH_UNSIGNED_INT:
151 case Dali::Pixel::DEPTH_FLOAT:
152 case Dali::Pixel::DEPTH_STENCIL:
154 DALI_LOG_ERROR("Pixel format not compatible.\n");
162 Uint16Pair ParseRange( unsigned int& index, unsigned int width, unsigned char*& pixel, unsigned int pixelStride, int testByte, int testBits, int testValue )
164 unsigned int start = 0xFFFF;
165 for( ; index < width; ++index, pixel += pixelStride )
167 if( ( pixel[ testByte ] & testBits ) == testValue )
171 pixel += pixelStride;
176 unsigned int end = width;
177 for( ; index < width; ++index, pixel += pixelStride )
179 if( ( pixel[ testByte ] & testBits ) != testValue )
183 pixel += pixelStride;
188 return Uint16Pair( start, end );
191 void ParseBorders( Devel::PixelBuffer& pixelBuffer, NPatchLoader::Data* data )
193 data->stretchPixelsX.Clear();
194 data->stretchPixelsY.Clear();
196 Pixel::Format pixelFormat = pixelBuffer.GetPixelFormat();
200 Pixel::GetAlphaOffsetAndMask( pixelFormat, alphaByte, alphaBits );
202 int testByte = alphaByte;
203 int testBits = alphaBits;
204 int testValue = alphaBits; // Opaque == stretch
207 GetRedOffsetAndMask( pixelFormat, testByte, testBits );
208 testValue = 0; // Black == stretch
211 unsigned int bytesPerPixel = Pixel::GetBytesPerPixel( pixelFormat );
212 unsigned int width = pixelBuffer.GetWidth();
213 unsigned int height = pixelBuffer.GetHeight();
214 unsigned char* srcPixels = pixelBuffer.GetBuffer();
215 unsigned int srcStride = width * bytesPerPixel;
218 unsigned char* top = srcPixels + bytesPerPixel;
219 unsigned int index = 0;
221 for( ; index < width - 2; )
223 Uint16Pair range = ParseRange( index, width - 2, top, bytesPerPixel, testByte, testBits, testValue );
224 if( range.GetX() != 0xFFFF )
226 data->stretchPixelsX.PushBack( range );
231 unsigned char* left = srcPixels + srcStride;
233 for( ; index < height - 2; )
235 Uint16Pair range = ParseRange( index, height - 2, left, srcStride, testByte, testBits, testValue );
236 if( range.GetX() != 0xFFFF )
238 data->stretchPixelsY.PushBack( range );
242 // If there are no stretch pixels then make the entire image stretchable
243 if( data->stretchPixelsX.Size() == 0 )
245 data->stretchPixelsX.PushBack( Uint16Pair( 0, width - 2 ) );
247 if( data->stretchPixelsY.Size() == 0 )
249 data->stretchPixelsY.PushBack( Uint16Pair( 0, height - 2 ) );
253 void SetLoadedNPatchData( NPatchLoader::Data* data, Devel::PixelBuffer& pixelBuffer )
255 if( data->border == Rect< int >( 0, 0, 0, 0 ) )
257 NPatchBuffer::ParseBorders( pixelBuffer, data );
260 pixelBuffer.Crop( 1, 1, pixelBuffer.GetWidth() - 2, pixelBuffer.GetHeight() - 2 );
264 data->stretchPixelsX.PushBack( Uint16Pair( data->border.left, ( (pixelBuffer.GetWidth() >= static_cast< unsigned int >( data->border.right )) ? pixelBuffer.GetWidth() - data->border.right : 0 ) ) );
265 data->stretchPixelsY.PushBack( Uint16Pair( data->border.top, ( (pixelBuffer.GetHeight() >= static_cast< unsigned int >( data->border.bottom )) ? pixelBuffer.GetHeight() - data->border.bottom : 0 ) ) );
268 data->croppedWidth = pixelBuffer.GetWidth();
269 data->croppedHeight = pixelBuffer.GetHeight();
271 PixelData pixels = Devel::PixelBuffer::Convert( pixelBuffer ); // takes ownership of buffer
273 Texture texture = Texture::New( TextureType::TEXTURE_2D, pixels.GetPixelFormat(), pixels.GetWidth(), pixels.GetHeight() );
274 texture.Upload( pixels );
276 data->textureSet = TextureSet::New();
277 data->textureSet.SetTexture( 0u, texture );
279 data->loadCompleted = true;
282 } // namespace NPatchBuffer
284 NPatchLoader::NPatchLoader()
288 NPatchLoader::~NPatchLoader()
292 std::size_t NPatchLoader::Load( TextureManager& textureManager, TextureUploadObserver* textureObserver, const std::string& url, const Rect< int >& border, bool& preMultiplyOnLoad, bool synchronousLoading )
294 std::size_t hash = CalculateHash( url );
295 OwnerContainer< Data* >::SizeType index = UNINITIALIZED_ID;
296 const OwnerContainer< Data* >::SizeType count = mCache.Count();
297 int cachedIndex = -1;
300 for( ; index < count; ++index )
302 if( mCache[ index ]->hash == hash )
304 // hash match, check url as well in case of hash collision
305 if( mCache[ index ]->url == url )
308 if( mCache[ index ]->border == border )
310 if( mCache[ index ]->loadCompleted )
312 return index + 1u; // valid indices are from 1 onwards
314 data = mCache[ index ];
315 cachedIndex = index + 1u; // valid indices are from 1 onwards
320 if( mCache[ index ]->loadCompleted )
322 // Same url but border is different - use the existing texture
323 Data* data = new Data();
326 data->croppedWidth = mCache[ index ]->croppedWidth;
327 data->croppedHeight = mCache[ index ]->croppedHeight;
329 data->textureSet = mCache[ index ]->textureSet;
331 StretchRanges stretchRangesX;
332 stretchRangesX.PushBack( Uint16Pair( border.left, ( (data->croppedWidth >= static_cast< unsigned int >( border.right )) ? data->croppedWidth - border.right : 0 ) ) );
334 StretchRanges stretchRangesY;
335 stretchRangesY.PushBack( Uint16Pair( border.top, ( (data->croppedHeight >= static_cast< unsigned int >( border.bottom )) ? data->croppedHeight - border.bottom : 0 ) ) );
337 data->stretchPixelsX = stretchRangesX;
338 data->stretchPixelsY = stretchRangesY;
339 data->border = border;
341 data->loadCompleted = mCache[ index ]->loadCompleted;
343 mCache.PushBack( data );
345 return mCache.Count(); // valid ids start from 1u
352 if( cachedIndex == -1 )
355 data->loadCompleted = false;
358 data->border = border;
360 mCache.PushBack( data );
362 cachedIndex = mCache.Count();
365 auto preMultiplyOnLoading = preMultiplyOnLoad ? TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD
366 : TextureManager::MultiplyOnLoad::LOAD_WITHOUT_MULTIPLY;
367 Devel::PixelBuffer pixelBuffer = textureManager.LoadPixelBuffer( url, Dali::ImageDimensions(), FittingMode::DEFAULT,
368 SamplingMode::BOX_THEN_LINEAR, synchronousLoading,
369 textureObserver, true, preMultiplyOnLoading );
373 NPatchBuffer::SetLoadedNPatchData( data, pixelBuffer );
374 preMultiplyOnLoad = ( preMultiplyOnLoading == TextureManager::MultiplyOnLoad::MULTIPLY_ON_LOAD ) ? true : false;
380 void NPatchLoader::SetNPatchData( std::size_t id, Devel::PixelBuffer& pixelBuffer )
383 data = mCache[ id - 1u ];
385 if( !data->loadCompleted )
387 NPatchBuffer::SetLoadedNPatchData( data, pixelBuffer );
391 bool NPatchLoader::GetNPatchData( std::size_t id, const Data*& data )
393 if( ( id > UNINITIALIZED_ID )&&( id <= mCache.Count() ) )
395 data = mCache[ id - 1u ]; // id's start from 1u
402 } // namespace Internal
404 } // namespace Toolkit