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/internal/event/common/thread-local-storage.h>
  22 #include <dali/internal/event/resources/resource-client.h>
  23
  24 namespace Dali
  25 {
  26
  27 namespace Internal
  28 {
  29
  30 FrameBufferImage::~FrameBufferImage()
  31 {
  32 }
  33
  34 FrameBufferImage::FrameBufferImage(unsigned int width, unsigned int height, Pixel::Format pixelFormat, ReleasePolicy releasePolicy)
  35   : Image(Dali::Image::Immediate, releasePolicy)
  36   , mWidth(width)
  37   , mHeight(height)
  38   , mPixelFormat(pixelFormat)
  39 {}
  40
  41 FrameBufferImage::FrameBufferImage( NativeImage& nativeImage )
  42   : Image(Dali::Image::Immediate)
  43   , mNativeImage(&nativeImage)
  44   , mWidth(nativeImage.GetWidth())
  45   , mHeight(nativeImage.GetHeight())
  46   , mPixelFormat(nativeImage.GetPixelFormat())
  47 {
  48
  49 }
  50
  51 FrameBufferImage::FrameBufferImage( NativeImage& nativeImage, ReleasePolicy releasePolicy )
  52   : Image(Dali::Image::Immediate, releasePolicy)
  53   , mNativeImage(&nativeImage)
  54   , mWidth(nativeImage.GetWidth())
  55   , mHeight(nativeImage.GetHeight())
  56   , mPixelFormat(nativeImage.GetPixelFormat())
  57 {
  58
  59
  60 }
  61
  62 void FrameBufferImage::Connect()
  63 {
  64   ++mConnectionCount;
  65
  66   if (mConnectionCount == 1)
  67   {
  68     // ticket was thrown away when related actors went offstage
  69     if (!mTicket)
  70     {
  71       ResourceClient& resourceClient = ThreadLocalStorage::Get().GetResourceClient();
  72       if (mNativeImage)
  73       {
  74         mTicket = resourceClient.AddFrameBufferImage(*mNativeImage);
  75         mTicket->AddObserver(*this);
  76       }
  77       else
  78       {
  79         mTicket = resourceClient.AddFrameBufferImage(mWidth, mHeight, mPixelFormat);
  80         mTicket->AddObserver(*this);
  81       }
  82     }
  83   }
  84 }
  85
  86 void FrameBufferImage::Disconnect()
  87 {
  88   if(!mTicket)
  89   {
  90     return;
  91   }
  92
  93   DALI_ASSERT_DEBUG(mConnectionCount > 0);
  94   --mConnectionCount;
  95   if (mConnectionCount == 0 && mReleasePolicy == Dali::Image::Unused)
  96   {
  97     // release image memory when it's not visible anymore (decrease ref. count of texture)
  98     mTicket->RemoveObserver(*this);
  99     mTicket.Reset();
 100   }
 101 }
 102
 103 } // namespace Internal
 104
 105 } // namespace Dali
 106