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

   1 /*
   2  * Copyright (c) 2014 Samsung Electronics Co., Ltd.
   3  *
   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
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   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
  18 // CLASS HEADER
  19 #include <dali/internal/event/images/frame-buffer-image-impl.h>
  20
  21 // INTERNAL INCLUDES
  22 #include <dali/public-api/object/type-registry.h>
  23 #include <dali/internal/event/common/thread-local-storage.h>
  24 #include <dali/internal/event/resources/resource-client.h>
  25
  26 namespace Dali
  27 {
  28
  29 namespace Internal
  30 {
  31
  32 namespace
  33 {
  34 TypeRegistration mType( typeid( Dali::FrameBufferImage ), typeid( Dali::Image ), NULL );
  35 } // unnamed namespace
  36
  37 FrameBufferImage::~FrameBufferImage()
  38 {
  39 }
  40
  41 FrameBufferImagePtr  FrameBufferImage::New(unsigned int width,
  42                                            unsigned int height,
  43                                            Pixel::Format pixelFormat,
  44                                            ReleasePolicy releasePolicy,
  45                                            RenderBuffer::Format bufferformat)
  46 {
  47   FrameBufferImagePtr image = new FrameBufferImage(width, height, pixelFormat, releasePolicy, bufferformat);
  48   image->Initialize();
  49   return image;
  50 }
  51
  52 FrameBufferImagePtr  FrameBufferImage::New( NativeImageInterface& nativeImage )
  53 {
  54   FrameBufferImagePtr image = new FrameBufferImage(nativeImage);
  55   image->Initialize();
  56   return image;
  57 }
  58
  59 FrameBufferImagePtr  FrameBufferImage::New( NativeImageInterface& nativeImage, ReleasePolicy releasePolicy )
  60 {
  61   FrameBufferImagePtr image = new FrameBufferImage(nativeImage, releasePolicy);
  62   image->Initialize();
  63   return image;
  64 }
  65
  66 FrameBufferImage::FrameBufferImage(unsigned int width, unsigned int height, Pixel::Format pixelFormat, ReleasePolicy releasePolicy, RenderBuffer::Format bufferformat)
  67 : Image( releasePolicy ),
  68   mNativeImage(),
  69   mPixelFormat( pixelFormat ),
  70   mBufferFormat( bufferformat )
  71 {
  72   mWidth  = width;
  73   mHeight = height;
  74 }
  75
  76 FrameBufferImage::FrameBufferImage( NativeImageInterface& nativeImage )
  77 : Image(),
  78   mNativeImage( &nativeImage ),
  79   mPixelFormat( Pixel::FIRST_VALID_PIXEL_FORMAT ),
  80   mBufferFormat( RenderBuffer::COLOR )
  81 {
  82   mWidth = nativeImage.GetWidth();
  83   mHeight = nativeImage.GetHeight();
  84 }
  85
  86 FrameBufferImage::FrameBufferImage( NativeImageInterface& nativeImage, ReleasePolicy releasePolicy )
  87 : Image( releasePolicy ),
  88   mNativeImage( &nativeImage ),
  89   mPixelFormat( Pixel::FIRST_VALID_PIXEL_FORMAT ),
  90   mBufferFormat( RenderBuffer::COLOR )
  91 {
  92   mWidth = nativeImage.GetWidth();
  93   mHeight = nativeImage.GetHeight();
  94 }
  95
  96 void FrameBufferImage::Connect()
  97 {
  98   ++mConnectionCount;
  99
 100   if (mConnectionCount == 1)
 101   {
 102     // ticket was thrown away when related actors went offstage
 103     if (!mTicket)
 104     {
 105       ResourceClient& resourceClient = ThreadLocalStorage::Get().GetResourceClient();
 106       if (mNativeImage)
 107       {
 108         mTicket = resourceClient.AddFrameBufferImage(*mNativeImage);
 109         mTicket->AddObserver(*this);
 110       }
 111       else
 112       {
 113         mTicket = resourceClient.AddFrameBufferImage(mWidth, mHeight, mPixelFormat, mBufferFormat);
 114         mTicket->AddObserver(*this);
 115       }
 116     }
 117   }
 118 }
 119
 120 void FrameBufferImage::Disconnect()
 121 {
 122   if(!mTicket)
 123   {
 124     return;
 125   }
 126
 127   DALI_ASSERT_DEBUG(mConnectionCount > 0);
 128   --mConnectionCount;
 129   if (mConnectionCount == 0 && mReleasePolicy == Dali::Image::UNUSED)
 130   {
 131     // release image memory when it's not visible anymore (decrease ref. count of texture)
 132     mTicket->RemoveObserver(*this);
 133     mTicket.Reset();
 134   }
 135 }
 136
 137 } // namespace Internal
 138
 139 } // namespace Dali