flutter::RasterCacheKeyID Class Reference

#include <raster_cache_key.h>

Public Member Functions
	RasterCacheKeyID (uint64_t unique_id, RasterCacheKeyType type)
	RasterCacheKeyID (std::vector< RasterCacheKeyID > child_ids, RasterCacheKeyType type)
uint64_t	unique_id () const
RasterCacheKeyType	type () const
const std::vector< RasterCacheKeyID > &	child_ids () const
std::size_t	GetHash () const
bool	operator== (const RasterCacheKeyID &other) const

Static Public Member Functions
static std::optional< std::vector< RasterCacheKeyID > >	LayerChildrenIds (const Layer *layer)

Static Public Attributes
static constexpr uint64_t	kDefaultUniqueID = 0

Detailed Description

Definition at line 26 of file raster_cache_key.h.

Constructor & Destructor Documentation

RasterCacheKeyID() [1/2]

flutter::RasterCacheKeyID::RasterCacheKeyID ( uint64_t  unique_id, RasterCacheKeyType  type  )

inline

Definition at line 30 of file raster_cache_key.h.

      : unique_id_(unique_id), type_(type) {}

RasterCacheKeyID() [2/2]

flutter::RasterCacheKeyID::RasterCacheKeyID ( std::vector< RasterCacheKeyID >  child_ids, RasterCacheKeyType  type  )

inline

Definition at line 33 of file raster_cache_key.h.

      : unique_id_(kDefaultUniqueID),
        type_(type),
        child_ids_(std::move(child_ids)) {}

Member Function Documentation

child_ids()

const std::vector< RasterCacheKeyID > & flutter::RasterCacheKeyID::child_ids ( ) const

inline

Definition at line 43 of file raster_cache_key.h.

{ return child_ids_; }

GetHash()

std::size_t flutter::RasterCacheKeyID::GetHash ( ) const

inline

Definition at line 48 of file raster_cache_key.h.

                            {
    if (cached_hash_) {
      return cached_hash_.value();
    }
    std::size_t seed = fml::HashCombine();
    fml::HashCombineSeed(seed, unique_id_);
    fml::HashCombineSeed(seed, type_);
    for (auto& child_id : child_ids_) {
      fml::HashCombineSeed(seed, child_id.GetHash());
    }
    cached_hash_ = seed;
    return seed;
  }

References fml::HashCombine(), and fml::HashCombineSeed().

Referenced by operator==(), and flutter::testing::TEST().

LayerChildrenIds()

std::optional< std::vector< RasterCacheKeyID > > flutter::RasterCacheKeyID::LayerChildrenIds ( const Layer *  layer )

static

Definition at line 15 of file raster_cache_key.cc.

                        {
  FML_DCHECK(layer->as_container_layer());
  auto& children_layers = layer->as_container_layer()->layers();
  auto children_count = children_layers.size();
  if (children_count == 0) {
    return std::nullopt;
  }
  std::vector<RasterCacheKeyID> ids;
  std::transform(
      children_layers.begin(), children_layers.end(), std::back_inserter(ids),
      [](auto& layer) -> RasterCacheKeyID { return layer->caching_key_id(); });
  return ids;
}

References flutter::Layer::as_container_layer(), FML_DCHECK, and flutter::ContainerLayer::layers().

Referenced by flutter::LayerRasterCacheItem::PrerollFinalize(), flutter::testing::TEST_F(), flutter::testing::TEST_F(), and flutter::testing::TEST_F().

operator==()

bool flutter::RasterCacheKeyID::operator== ( const RasterCacheKeyID &  other ) const

inline

Definition at line 62 of file raster_cache_key.h.

                                                       {
    return unique_id_ == other.unique_id_ && type_ == other.type_ &&
           GetHash() == other.GetHash() && child_ids_ == other.child_ids_;
  }

References GetHash().

type()

RasterCacheKeyType flutter::RasterCacheKeyID::type ( ) const

inline

Definition at line 41 of file raster_cache_key.h.

{ return type_; }

Referenced by flutter::RasterCacheKey::kind().

unique_id()

uint64_t flutter::RasterCacheKeyID::unique_id ( ) const

inline

Definition at line 39 of file raster_cache_key.h.

{ return unique_id_; }

Member Data Documentation

kDefaultUniqueID

constexpr uint64_t flutter::RasterCacheKeyID::kDefaultUniqueID = 0

staticconstexpr

Definition at line 28 of file raster_cache_key.h.

Referenced by flutter::testing::TEST().

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The documentation for this class was generated from the following files:

• flow/raster_cache_key.h
• flow/raster_cache_key.cc