2 // Copyright (c) 2014 Samsung Electronics Co., Ltd.
4 // Licensed under the Flora License, Version 1.0 (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://floralicense.org/license/
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.
18 #include <dali/internal/event/images/encoded-buffer-image-impl.h>
21 #include <dali/internal/event/common/thread-local-storage.h>
22 #include <dali/internal/event/resources/resource-client.h>
23 #include <dali/integration-api/platform-abstraction.h>
30 Dali::EncodedBufferImage EncodedBufferImage::New( const uint8_t * const encodedImage,
31 const std::size_t encodedImageByteCount,
32 const ImageAttributes& attributes,
33 const ReleasePolicy releasePol )
35 DALI_ASSERT_DEBUG( encodedImage && "Null image pointer passed-in for decoding from memory." );
36 DALI_ASSERT_DEBUG( encodedImageByteCount > 0U && "Zero size passed for image resource in memory buffer." );
37 DALI_ASSERT_ALWAYS( encodedImage && (encodedImageByteCount != 0) );
38 // SEGV early before we allocate anything if the caller passed in an invalid
39 // input buffer by reading both ends of it:
40 DALI_ASSERT_ALWAYS( static_cast<int>( encodedImage[0] + encodedImage[encodedImageByteCount-1] ) != -1 );
42 EncodedBufferImage* const image = new EncodedBufferImage( releasePol );
43 // Make sure that this image object cannot leak if we throw:
44 Dali::EncodedBufferImage publicImage(image);
46 // Replicate the functionality of ImageFactory::load() without the filesystem caching:
47 Dali::Integration::BitmapResourceType resourceType( attributes );
48 RequestBufferPtr buffer( new RequestBuffer );
49 buffer->GetVector().Resize( encodedImageByteCount );
50 // Resize() won't throw on failure, so avoid a SEGV if the allocation failed:
51 DALI_ASSERT_ALWAYS( buffer->GetVector().Size() >= encodedImageByteCount );
53 memcpy( &(buffer->GetVector()[0]), encodedImage, encodedImageByteCount );
55 // Get image size from buffer
57 Internal::ThreadLocalStorage::Get().GetPlatformAbstraction().GetClosestImageSize( buffer, attributes, size );
58 image->mWidth = (unsigned int) size.width;
59 image->mHeight = (unsigned int) size.height;
61 ResourceClient &resourceClient = ThreadLocalStorage::Get().GetResourceClient();
62 ResourceTicketPtr ticket = resourceClient.DecodeResource( resourceType, buffer );
65 DALI_ASSERT_DEBUG( dynamic_cast<ImageTicket*>( ticket.Get() ) && "Resource ticket returned for image resource has to be an ImageTicket subclass.\n" );
66 ImageTicket * const imageTicket = static_cast<ImageTicket*>( ticket.Get() );
68 image->mTicket = imageTicket;
69 imageTicket->AddObserver( *image );
75 } // namespace Internal