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 FrameBufferImagePtr  FrameBufferImage::New(unsigned int width, unsigned int height, Pixel::Format pixelFormat, ReleasePolicy releasePolicy)
  35 {
  36   FrameBufferImagePtr image = new FrameBufferImage(width, height, pixelFormat, releasePolicy);
  37   image->Initialize();
  38   return image;
  39 }
  40
  41 FrameBufferImagePtr  FrameBufferImage::New( NativeImage& nativeImage )
  42 {
  43   FrameBufferImagePtr image = new FrameBufferImage(nativeImage);
  44   image->Initialize();
  45   return image;
  46 }
  47
  48 FrameBufferImagePtr  FrameBufferImage::New( NativeImage& nativeImage, ReleasePolicy releasePolicy )
  49 {
  50   FrameBufferImagePtr image = new FrameBufferImage(nativeImage, releasePolicy);
  51   image->Initialize();
  52   return image;
  53 }
  54
  55 FrameBufferImage::FrameBufferImage(unsigned int width, unsigned int height, Pixel::Format pixelFormat, ReleasePolicy releasePolicy)
  56 : Image(Dali::Image::Immediate, releasePolicy),
  57   mPixelFormat(pixelFormat)
  58 {
  59   mWidth  = width;
  60   mHeight = height;
  61 }
  62
  63
  64 FrameBufferImage::FrameBufferImage( NativeImage& nativeImage )
  65 : Image(Dali::Image::Immediate),
  66   mNativeImage(&nativeImage),
  67   mPixelFormat(nativeImage.GetPixelFormat())
  68 {
  69   mWidth = nativeImage.GetWidth();
  70   mHeight = nativeImage.GetHeight();
  71 }
  72
  73
  74 FrameBufferImage::FrameBufferImage( NativeImage& nativeImage, ReleasePolicy releasePolicy )
  75 : Image(Dali::Image::Immediate, releasePolicy),
  76   mNativeImage(&nativeImage),
  77   mPixelFormat(nativeImage.GetPixelFormat())
  78 {
  79   mWidth = nativeImage.GetWidth();
  80   mHeight = nativeImage.GetHeight();
  81 }
  82
  83 void FrameBufferImage::Connect()
  84 {
  85   ++mConnectionCount;
  86
  87   if (mConnectionCount == 1)
  88   {
  89     // ticket was thrown away when related actors went offstage
  90     if (!mTicket)
  91     {
  92       ResourceClient& resourceClient = ThreadLocalStorage::Get().GetResourceClient();
  93       if (mNativeImage)
  94       {
  95         mTicket = resourceClient.AddFrameBufferImage(*mNativeImage);
  96         mTicket->AddObserver(*this);
  97       }
  98       else
  99       {
 100         mTicket = resourceClient.AddFrameBufferImage(mWidth, mHeight, mPixelFormat);
 101         mTicket->AddObserver(*this);
 102       }
 103     }
 104   }
 105 }
 106
 107 void FrameBufferImage::Disconnect()
 108 {
 109   if(!mTicket)
 110   {
 111     return;
 112   }
 113
 114   DALI_ASSERT_DEBUG(mConnectionCount > 0);
 115   --mConnectionCount;
 116   if (mConnectionCount == 0 && mReleasePolicy == Dali::Image::Unused)
 117   {
 118     // release image memory when it's not visible anymore (decrease ref. count of texture)
 119     mTicket->RemoveObserver(*this);
 120     mTicket.Reset();
 121   }
 122 }
 123
 124 } // namespace Internal
 125
 126 } // namespace Dali