flutter::TextureRegistry Class Reference

#include <texture.h>

Public Member Functions
	TextureRegistry ()
void	RegisterTexture (const std::shared_ptr< Texture > &texture)
void	RegisterContextListener (uintptr_t id, std::weak_ptr< ContextListener > image)
void	UnregisterTexture (int64_t id)
void	UnregisterContextListener (uintptr_t id)
std::shared_ptr< Texture >	GetTexture (int64_t id)
void	OnGrContextCreated ()
void	OnGrContextDestroyed ()

Detailed Description

Definition at line 70 of file texture.h.

Constructor & Destructor Documentation

TextureRegistry()

TextureRegistry::TextureRegistry ( )

default

Member Function Documentation

GetTexture()

std::shared_ptr< Texture > TextureRegistry::GetTexture

(

int64_t

id

)

Definition at line 93 of file texture.cc.

                                                             {
  auto it = mapping_.find(id);
  return it != mapping_.end() ? it->second : nullptr;
}

OnGrContextCreated()

void TextureRegistry::OnGrContextCreated

(

)

Definition at line 52 of file texture.cc.

                                         {
  for (auto& it : mapping_) {
    it.second->OnGrContextCreated();
  }
 
  // Calling OnGrContextCreated may result in a subsequent call to
  // RegisterContextListener from the listener, which may modify the map.
  std::vector<InsertionOrderMap::value_type> ordered_images(
      ordered_images_.begin(), ordered_images_.end());
 
  for (const auto& [id, pair] : ordered_images) {
    auto index_id = pair.first;
    auto weak_image = pair.second;
    if (auto image = weak_image.lock()) {
      image->OnGrContextCreated();
    } else {
      image_indices_.erase(index_id);
      ordered_images_.erase(id);
    }
  }
}

OnGrContextDestroyed()

void TextureRegistry::OnGrContextDestroyed

(

)

Definition at line 74 of file texture.cc.

                                           {
  for (auto& it : mapping_) {
    it.second->OnGrContextDestroyed();
  }
 
  auto it = ordered_images_.begin();
  while (it != ordered_images_.end()) {
    auto index_id = it->second.first;
    auto weak_image = it->second.second;
    if (auto image = weak_image.lock()) {
      image->OnGrContextDestroyed();
      it++;
    } else {
      image_indices_.erase(index_id);
      it = ordered_images_.erase(it);
    }
  }
}

RegisterContextListener()

void TextureRegistry::RegisterContextListener	(	uintptr_t	id,
		std::weak_ptr< ContextListener >	image
	)

Definition at line 26 of file texture.cc.

                                        {
  size_t next_id = image_counter_++;
  auto const result = image_indices_.insert({id, next_id});
  if (!result.second) {
    ordered_images_.erase(result.first->second);
    result.first->second = next_id;
  }
  ordered_images_[next_id] = {next_id, std::move(image)};
}

RegisterTexture()

void TextureRegistry::RegisterTexture

(

const std::shared_ptr< Texture > &

texture

)

Definition at line 19 of file texture.cc.

                                                                           {
  if (!texture) {
    return;
  }
  mapping_[texture->Id()] = texture;
}

UnregisterContextListener()

void TextureRegistry::UnregisterContextListener

(

uintptr_t

id

)

Definition at line 47 of file texture.cc.

                                                            {
  ordered_images_.erase(image_indices_[id]);
  image_indices_.erase(id);
}

UnregisterTexture()

void TextureRegistry::UnregisterTexture

(

int64_t

id

)

Definition at line 38 of file texture.cc.

                                                  {
  auto found = mapping_.find(id);
  if (found == mapping_.end()) {
    return;
  }
  found->second->OnTextureUnregistered();
  mapping_.erase(found);
}

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

• common/graphics/texture.h
• common/graphics/texture.cc