2 * Copyright (c) 2015 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/atlas-impl.h>
22 #include <dali/public-api/object/type-registry.h>
23 #include <dali/internal/event/common/thread-local-storage.h>
25 #include <dali/internal/event/images/image-factory.h>
26 #include <dali/internal/event/resources/resource-client.h>
27 #include <dali/integration-api/bitmap.h>
28 #include <dali/integration-api/platform-abstraction.h>
38 TypeRegistration mType( typeid( Dali::Atlas ), typeid( Dali::Image ), NULL );
41 Atlas* Atlas::New( SizeType width,
43 Pixel::Format pixelFormat,
46 return new Atlas( width, height, pixelFormat, recoverContext );
49 void Atlas::Clear(const Vector4& color)
52 ClearBackground( color );
55 bool Atlas::Upload( BufferImage& bufferImage,
59 bool uploadSuccess( false );
61 if( Compatible(bufferImage.GetPixelFormat(),
62 xOffset + bufferImage.GetWidth(),
63 yOffset + bufferImage.GetHeight() ) )
66 ResourceId destId = GetResourceId();
67 ResourceId srcId = bufferImage.GetResourceId();
71 mResourceClient.UploadBitmap( destId, srcId, xOffset, yOffset );
79 bool Atlas::Upload( const std::string& url,
83 bool uploadSuccess( false );
85 Integration::BitmapPtr bitmap = LoadBitmap( url );
87 if( bitmap && Compatible(bitmap->GetPixelFormat(), xOffset + bitmap->GetImageWidth(), yOffset + bitmap->GetImageHeight()) )
90 ResourceId destId = GetResourceId();
93 mResourceClient.UploadBitmap( destId, bitmap, xOffset, yOffset );
98 mTiles.PushBack( new Tile(xOffset, yOffset, url) );
102 return uploadSuccess;
105 void Atlas::RecoverFromContextLoss()
107 ResourceId destId = GetResourceId();
112 ClearBackground( mClearColor );
115 if( mRecoverContext )
117 // Restore the atlas by re-uploading the url resources
118 Vector< Tile* >::ConstIterator end = mTiles.End();
119 for( Vector<Tile*>::Iterator iter = mTiles.Begin(); iter != end; iter++ )
121 Integration::BitmapPtr bitmap = LoadBitmap( (*iter)->url );
122 mResourceClient.UploadBitmap( destId, bitmap, (*iter)->xOffset, (*iter)->yOffset );
133 Atlas::Atlas( SizeType width,
135 Pixel::Format pixelFormat,
136 bool recoverContext )
137 : mResourceClient( ThreadLocalStorage::Get().GetResourceClient() ),
138 mImageFactory( ThreadLocalStorage::Get().GetImageFactory() ),
139 mClearColor( Vector4::ZERO ),
140 mPixelFormat( pixelFormat ),
142 mRecoverContext( recoverContext )
148 void Atlas::Connect()
152 if( mConnectionCount == 1 )
158 void Atlas::Disconnect()
160 if( mConnectionCount )
164 if ( Dali::Image::UNUSED == mReleasePolicy &&
165 mConnectionCount == 0 )
172 bool Atlas::Compatible( Pixel::Format pixelFormat,
176 bool Compatible(false);
178 if( mPixelFormat != pixelFormat )
180 DALI_LOG_ERROR( "Pixel format %d does not match Atlas format %d\n", pixelFormat, mPixelFormat );
184 if( x <= mWidth && y <= mHeight )
190 DALI_LOG_ERROR( "image does not fit within the atlas \n" );
197 void Atlas::AllocateAtlas()
201 mTicket = mResourceClient.AllocateTexture( mWidth, mHeight, mPixelFormat );
202 mImageFactory.RegisterForContextRecovery( this );
206 void Atlas::ReleaseAtlas()
210 mImageFactory.UnregisterFromContextRecovery( this );
213 void Atlas::ClearBackground(const Vector4& color )
216 ResourceId destId = GetResourceId();
219 const unsigned int numPixels = mWidth * mHeight;
220 unsigned int bytesPerPixel = Pixel::GetBytesPerPixel(mPixelFormat);
221 BufferImagePtr imageData = BufferImage::New( mWidth, mHeight, mPixelFormat );
222 PixelBuffer* pixbuf = imageData->GetBuffer();
224 // converting color value from float 0.f~1.f to byte 0~255
225 unsigned char r = static_cast<unsigned char>( 255.f * Clamp( color.r, 0.f, 1.f ) );
226 unsigned char g = static_cast<unsigned char>( 255.f * Clamp( color.g, 0.f, 1.f ) );
227 unsigned char b = static_cast<unsigned char>( 255.f * Clamp( color.b, 0.f, 1.f ) );
228 unsigned char a = static_cast<unsigned char>( 255.f * Clamp( color.a, 0.f, 1.f ) );
229 if( mPixelFormat == Pixel::RGBA8888 )
231 // For little-endian byte order, the RGBA channels needs to be reversed for bit shifting.
232 uint32_t clearColor = ( (uint32_t) a<<24 | (uint32_t)b << 16 | (uint32_t)g << 8 | (uint32_t)r );
233 uint32_t* buf = (uint32_t *) pixbuf;
234 for( unsigned int i = 0; i < numPixels; ++i )
239 else if( mPixelFormat == Pixel::RGB888 )
241 for( unsigned int i = 0; i < numPixels; ++i )
243 pixbuf[i*bytesPerPixel] = r;
244 pixbuf[i*bytesPerPixel+1] = g;
245 pixbuf[i*bytesPerPixel+2] = b;
248 else if( mPixelFormat == Pixel::A8 )
250 memset( pixbuf, a, numPixels );
254 imageData->Update(area);
258 mResourceClient.UploadBitmap( destId, imageData->GetResourceId(), 0, 0 );
262 void Atlas::ClearCache()
264 Vector< Tile* >::ConstIterator end = mTiles.End();
265 for( Vector<Tile*>::Iterator iter = mTiles.Begin(); iter != end; iter++ )
272 Integration::BitmapPtr Atlas::LoadBitmap( const std::string& url )
274 ImageAttributes loadedAttrs;
275 Integration::BitmapResourceType resourceType( loadedAttrs );
276 Integration::PlatformAbstraction& platformAbstraction = Internal::ThreadLocalStorage::Get().GetPlatformAbstraction();
278 Integration::ResourcePointer resource = platformAbstraction.LoadResourceSynchronously(resourceType, url);
279 Integration::BitmapPtr bitmap = static_cast<Integration::Bitmap*>( resource.Get());
284 } // namespace Internal