A cache used to reference render targets that are owned by the embedder but needed by th engine to render a frame. More...

#include <embedder_render_target_cache.h>

Public Member Functions
	EmbedderRenderTargetCache ()

	~EmbedderRenderTargetCache ()

std::unique_ptr< EmbedderRenderTarget >	GetRenderTarget (const EmbedderExternalView::RenderTargetDescriptor &descriptor)

std::set< std::unique_ptr< EmbedderRenderTarget > >	ClearAllRenderTargetsInCache ()

void	CacheRenderTarget (std::unique_ptr< EmbedderRenderTarget > target)

size_t	GetCachedTargetsCount () const

Detailed Description

A cache used to reference render targets that are owned by the embedder but needed by th engine to render a frame.

A map of class is managed by EmbedderExternalViewEmbedder. Each instance of this class manages the cached render targets for a view.

Definition at line 26 of file embedder_render_target_cache.h.

Constructor & Destructor Documentation

◆ EmbedderRenderTargetCache()

flutter::EmbedderRenderTargetCache::EmbedderRenderTargetCache ( )

default

◆ ~EmbedderRenderTargetCache()

flutter::EmbedderRenderTargetCache::~EmbedderRenderTargetCache ( )

default

Member Function Documentation

◆ CacheRenderTarget()

void flutter::EmbedderRenderTargetCache::CacheRenderTarget ( std::unique_ptr< EmbedderRenderTarget > target )

Definition at line 35 of file embedder_render_target_cache.cc.

                                                {
  if (target == nullptr) {
    return;
  }
  auto desc = EmbedderExternalView::RenderTargetDescriptor{
      target->GetRenderTargetSize()};
  cached_render_targets_.insert(std::make_pair(desc, std::move(target)));
}

References target.

◆ ClearAllRenderTargetsInCache()

std::set< std::unique_ptr< EmbedderRenderTarget > > flutter::EmbedderRenderTargetCache::ClearAllRenderTargetsInCache ( )

Definition at line 26 of file embedder_render_target_cache.cc.

                                                        {
  std::set<std::unique_ptr<EmbedderRenderTarget>> cleared_targets;
  for (auto& targets : cached_render_targets_) {
    cleared_targets.insert(std::move(targets.second));
  }
  cached_render_targets_.clear();
  return cleared_targets;
}

◆ GetCachedTargetsCount()

size_t flutter::EmbedderRenderTargetCache::GetCachedTargetsCount ( ) const

Definition at line 45 of file embedder_render_target_cache.cc.

                                                              {
  return cached_render_targets_.size();
}

◆ GetRenderTarget()

std::unique_ptr< EmbedderRenderTarget > flutter::EmbedderRenderTargetCache::GetRenderTarget ( const EmbedderExternalView::RenderTargetDescriptor & descriptor )

Definition at line 14 of file embedder_render_target_cache.cc.

                                                                  {
  auto compatible_target = cached_render_targets_.find(descriptor);
  if (compatible_target == cached_render_targets_.end()) {
    return nullptr;
  }
  auto target = std::move(compatible_target->second);
  cached_render_targets_.erase(compatible_target);
  return target;
}