dali/internal/event/images/frame-buffer-image-impl.cpp

   1 //
   2 // Copyright (c) 2014 Samsung Electronics Co., Ltd.
   3 //
   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
   7 //
   8 //     http://floralicense.org/license/
   9 //
  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.
  15 //
  16
  17 // CLASS HEADER
  18 #include <dali/internal/event/images/frame-buffer-image-impl.h>
  19
  20 // INTERNAL INCLUDES
  21 #include <dali/public-api/object/type-registry.h>
  22 #include <dali/internal/event/common/thread-local-storage.h>
  23 #include <dali/internal/event/resources/resource-client.h>
  24
  25 namespace Dali
  26 {
  27
  28 namespace Internal
  29 {
  30
  31 namespace
  32 {
  33 TypeRegistration mType( typeid( Dali::FrameBufferImage ), typeid( Dali::Image ), NULL );
  34 } // unnamed namespace
  35
  36 FrameBufferImage::~FrameBufferImage()
  37 {
  38 }
  39
  40 FrameBufferImagePtr  FrameBufferImage::New(unsigned int width, unsigned int height, Pixel::Format pixelFormat, ReleasePolicy releasePolicy)
  41 {
  42   FrameBufferImagePtr image = new FrameBufferImage(width, height, pixelFormat, releasePolicy);
  43   image->Initialize();
  44   return image;
  45 }
  46
  47 FrameBufferImagePtr  FrameBufferImage::New( NativeImage& nativeImage )
  48 {
  49   FrameBufferImagePtr image = new FrameBufferImage(nativeImage);
  50   image->Initialize();
  51   return image;
  52 }
  53
  54 FrameBufferImagePtr  FrameBufferImage::New( NativeImage& nativeImage, ReleasePolicy releasePolicy )
  55 {
  56   FrameBufferImagePtr image = new FrameBufferImage(nativeImage, releasePolicy);
  57   image->Initialize();
  58   return image;
  59 }
  60
  61 FrameBufferImage::FrameBufferImage(unsigned int width, unsigned int height, Pixel::Format pixelFormat, ReleasePolicy releasePolicy)
  62 : Image(Dali::Image::Immediate, releasePolicy),
  63   mPixelFormat(pixelFormat)
  64 {
  65   mWidth  = width;
  66   mHeight = height;
  67 }
  68
  69
  70 FrameBufferImage::FrameBufferImage( NativeImage& nativeImage )
  71 : Image(Dali::Image::Immediate),
  72   mNativeImage(&nativeImage),
  73   mPixelFormat(nativeImage.GetPixelFormat())
  74 {
  75   mWidth = nativeImage.GetWidth();
  76   mHeight = nativeImage.GetHeight();
  77 }
  78
  79
  80 FrameBufferImage::FrameBufferImage( NativeImage& nativeImage, ReleasePolicy releasePolicy )
  81 : Image(Dali::Image::Immediate, releasePolicy),
  82   mNativeImage(&nativeImage),
  83   mPixelFormat(nativeImage.GetPixelFormat())
  84 {
  85   mWidth = nativeImage.GetWidth();
  86   mHeight = nativeImage.GetHeight();
  87 }
  88
  89 void FrameBufferImage::Connect()
  90 {
  91   ++mConnectionCount;
  92
  93   if (mConnectionCount == 1)
  94   {
  95     // ticket was thrown away when related actors went offstage
  96     if (!mTicket)
  97     {
  98       ResourceClient& resourceClient = ThreadLocalStorage::Get().GetResourceClient();
  99       if (mNativeImage)
 100       {
 101         mTicket = resourceClient.AddFrameBufferImage(*mNativeImage);
 102         mTicket->AddObserver(*this);
 103       }
 104       else
 105       {
 106         mTicket = resourceClient.AddFrameBufferImage(mWidth, mHeight, mPixelFormat);
 107         mTicket->AddObserver(*this);
 108       }
 109     }
 110   }
 111 }
 112
 113 void FrameBufferImage::Disconnect()
 114 {
 115   if(!mTicket)
 116   {
 117     return;
 118   }
 119
 120   DALI_ASSERT_DEBUG(mConnectionCount > 0);
 121   --mConnectionCount;
 122   if (mConnectionCount == 0 && mReleasePolicy == Dali::Image::Unused)
 123   {
 124     // release image memory when it's not visible anymore (decrease ref. count of texture)
 125     mTicket->RemoveObserver(*this);
 126     mTicket.Reset();
 127   }
 128 }
 129
 130 } // namespace Internal
 131
 132 } // namespace Dali