2 * Copyright (c) 2014 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/internal/event/images/nine-patch-image-impl.h>
22 #include <dali/integration-api/bitmap.h>
23 #include <dali/internal/event/images/bitmap-external.h>
24 #include <dali/internal/event/common/thread-local-storage.h>
25 #include <dali/internal/event/resources/resource-client.h>
26 #include <dali/internal/update/manager/update-manager.h>
27 #include <dali/internal/event/images/image-factory.h>
28 #include <dali/integration-api/platform-abstraction.h>
29 #include <dali/integration-api/resource-types.h>
30 #include <dali/integration-api/resource-cache.h>
35 void GetRedOffsetAndMask(Dali::Pixel::Format pixelFormat, int& byteOffset, int& bitMask)
41 case Dali::Pixel::LA88:
48 case Dali::Pixel::RGB888:
49 case Dali::Pixel::RGB8888:
50 case Dali::Pixel::RGBA8888:
56 case Dali::Pixel::BGR8888:
57 case Dali::Pixel::BGRA8888:
63 case Dali::Pixel::RGB565:
69 case Dali::Pixel::BGR565:
76 case Dali::Pixel::RGBA4444:
82 case Dali::Pixel::BGRA4444:
89 case Dali::Pixel::RGBA5551:
96 case Dali::Pixel::BGRA5551:
103 case Dali::Pixel::COMPRESSED_R11_EAC:
104 case Dali::Pixel::COMPRESSED_SIGNED_R11_EAC:
105 case Dali::Pixel::COMPRESSED_RG11_EAC:
106 case Dali::Pixel::COMPRESSED_SIGNED_RG11_EAC:
107 case Dali::Pixel::COMPRESSED_RGB8_ETC2:
108 case Dali::Pixel::COMPRESSED_SRGB8_ETC2:
109 case Dali::Pixel::COMPRESSED_RGB8_ETC1:
110 case Dali::Pixel::COMPRESSED_RGB_PVRTC_4BPPV1:
111 case Dali::Pixel::COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
112 case Dali::Pixel::COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
113 case Dali::Pixel::COMPRESSED_RGBA8_ETC2_EAC:
114 case Dali::Pixel::COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
116 DALI_LOG_ERROR("Pixel formats for compressed images are not compatible with simple masking-out of per-pixel alpha.\n");
124 } // anonymous namespace
133 NinePatchImagePtr NinePatchImage::New( const std::string& filename, const Dali::ImageAttributes& attributes, LoadPolicy loadPol, ReleasePolicy releasePol )
135 Internal::NinePatchImagePtr internal( new NinePatchImage( filename, attributes, loadPol, releasePol ) );
136 internal->Initialize();
140 NinePatchImage::NinePatchImage( const std::string& filename, const Dali::ImageAttributes& attributes, LoadPolicy loadPol, ReleasePolicy releasePol)
141 : Image(Dali::Image::Immediate, Dali::Image::Never),
146 Integration::PlatformAbstraction& platformAbstraction = Internal::ThreadLocalStorage::Get().GetPlatformAbstraction();
149 platformAbstraction.GetClosestImageSize( filename, attributes, closestSize );
150 ImageAttributes loadedAttrs;
151 loadedAttrs.SetSize( closestSize );
152 mWidth = closestSize.width;
153 mHeight = closestSize.height;
154 Integration::BitmapResourceType resourceType( loadedAttrs );
156 // Note, bitmap is only destroyed when the image is destroyed.
157 Integration::ResourcePointer resource = platformAbstraction.LoadResourceSynchronously(resourceType, filename);
158 mBitmap = static_cast<Integration::Bitmap*>( resource.Get());
161 NinePatchImage* NinePatchImage::GetNinePatchImage( Image* image)
163 return dynamic_cast<NinePatchImage*>(image);
166 NinePatchImage::~NinePatchImage()
170 Vector4 NinePatchImage::GetStretchBorders()
172 if( ! mParsedBorder )
176 return mStretchBorders;
179 Rect<int> NinePatchImage::GetChildRectangle()
181 if( ! mParsedBorder )
185 return mChildRectangle;
188 Internal::BitmapImagePtr NinePatchImage::CreateCroppedBitmapImage()
190 Pixel::Format pixelFormat = mBitmap->GetPixelFormat();
192 BitmapImagePtr cropped = BitmapImage::New( mWidth-2, mHeight-2, pixelFormat,
193 Dali::Image::Immediate, Dali::Image::Never );
195 Integration::Bitmap::PackedPixelsProfile* srcProfile = mBitmap->GetPackedPixelsProfile();
196 DALI_ASSERT_DEBUG( srcProfile && "Wrong profile for source bitmap");
200 PixelBuffer* destPixels = cropped->GetBuffer();
201 unsigned int destStride = cropped->GetBufferStride();
202 unsigned int pixelWidth = GetBytesPerPixel(pixelFormat);
204 PixelBuffer* srcPixels = mBitmap->GetBuffer();
205 unsigned int srcStride = srcProfile->GetBufferStride();
207 for( unsigned int row=1; row < mHeight-1; ++row )
209 PixelBuffer* src = srcPixels + row*srcStride + pixelWidth;
210 PixelBuffer* dest = destPixels + (row-1)*destStride;
211 memcpy(dest, src, destStride );
216 cropped->Update(area); // default area has no width or height
220 void NinePatchImage::Initialize()
222 ThreadLocalStorage& tls = ThreadLocalStorage::Get();
223 mResourceClient = &tls.GetResourceClient();
226 void NinePatchImage::Connect()
228 if( mConnectionCount == 0 && !mTicket )
230 const ImageTicketPtr& t = mResourceClient->AddBitmapImage(mBitmap.Get());
232 mTicket->AddObserver(*this);
238 void NinePatchImage::Disconnect()
240 if( mConnectionCount > 0 )
247 void NinePatchImage::ParseBorders()
249 Pixel::Format pixelFormat = mBitmap->GetPixelFormat();
251 Integration::Bitmap::PackedPixelsProfile* srcProfile = mBitmap->GetPackedPixelsProfile();
252 DALI_ASSERT_DEBUG( srcProfile && "Wrong profile for source bitmap");
256 unsigned int pixelWidth = GetBytesPerPixel(pixelFormat);
257 PixelBuffer* srcPixels = mBitmap->GetBuffer();
258 unsigned int srcStride = srcProfile->GetBufferStride();
262 Pixel::GetAlphaOffsetAndMask(pixelFormat, alphaByte, alphaBits);
265 GetRedOffsetAndMask(pixelFormat, redByte, redBits);
267 int testByte = alphaByte;
268 int testBits = alphaBits;
269 int testValue = alphaBits; // Opaque == stretch
274 testValue = 0; // Black == stretch
286 PixelBuffer* top = srcPixels + pixelWidth;
287 PixelBuffer* bottom = srcPixels + (mHeight-1)*srcStride + pixelWidth;
289 // Read the top and bottom rows:
290 // (Also read the last column to ensure end value gets set)
291 for( unsigned int col=1; col < mWidth; ++col )
293 if( (top[testByte] & testBits) == testValue )
300 else if(startX1 >= 0 && endX1 < 0)
306 if( (bottom[testByte] & testBits) == testValue )
313 else if(startX2 >= 0 && endX2 < 0)
322 // Read the left and right columns:
323 PixelBuffer* left = srcPixels + srcStride;
324 PixelBuffer* right = left + (srcStride - pixelWidth);
326 // (Also read the last row to ensure end value gets set)
327 for( unsigned int row=1; row < mHeight; ++row )
329 if((left[testByte] & testBits) == testValue)
336 else if(startY1 >= 0 && endY1 < 0)
342 if((right[testByte] & testBits) == testValue)
349 else if(startY2 >= 0 && endY2 < 0)
358 mStretchBorders.x = startX1-1;
359 mStretchBorders.y = startY1-1;
360 mStretchBorders.z = mWidth-endX1-1;
361 mStretchBorders.w = mHeight-endY1-1;
363 mChildRectangle.x = startX2-1;
364 mChildRectangle.y = startY2-1;
365 mChildRectangle.width = endX2-startX2;
366 mChildRectangle.height = endY2-startY2;
368 mParsedBorder = true;
372 } // namespace Internal