impeller::DlImageImpeller Class Reference

#include <dl_image_impeller.h>

Inheritance diagram for impeller::DlImageImpeller:

Public Member Functions
Type	GetImageType () const override
const DlImageImpeller *	asImpellerImage () const override
bool	isTextureBacked () const override
virtual std::shared_ptr< Texture >	GetImpellerTexture (const std::shared_ptr< Context > &context) const =0
std::shared_ptr< Texture >	GetCachedTexture (const ContentContext &renderer) const

Static Public Member Functions
static sk_sp< DlImageImpeller >	Make (std::shared_ptr< Texture > texture, OwningContext owning_context=OwningContext::kIO)
static sk_sp< DlImageImpeller >	MakeFromYUVTextures (AiksContext *aiks_context, std::shared_ptr< Texture > y_texture, std::shared_ptr< Texture > uv_texture, YUVColorSpace yuv_color_space)

Detailed Description

Definition at line 17 of file dl_image_impeller.h.

Member Function Documentation

asImpellerImage()

const DlImageImpeller* impeller::DlImageImpeller::asImpellerImage ( ) const

inlineoverride

Definition at line 23 of file dl_image_impeller.h.

{ return this; }

GetCachedTexture()

std::shared_ptr< Texture > impeller::DlImageImpeller::GetCachedTexture

(

const ContentContext &

renderer

)

const

Definition at line 54 of file dl_image_impeller.cc.

                                          {
  auto texture = renderer.GetCachedTexture(this);
  if (texture) {
    return texture;
  }
  texture = GetImpellerTexture(renderer.GetContext());
  renderer.SetCachedTexture(this, texture);
  return texture;
}

References impeller::ContentContext::GetCachedTexture(), impeller::ContentContext::GetContext(), GetImpellerTexture(), and impeller::ContentContext::SetCachedTexture().

GetImageType()

Type impeller::DlImageImpeller::GetImageType ( ) const

inlineoverride

Definition at line 20 of file dl_image_impeller.h.

{ return Type::kImpeller; }

GetImpellerTexture()

virtual std::shared_ptr<Texture> impeller::DlImageImpeller::GetImpellerTexture ( const std::shared_ptr< Context > &  context ) const

pure virtual

Implemented in impeller::DlImageImpellerTexture.

Referenced by GetCachedTexture().

isTextureBacked()

bool impeller::DlImageImpeller::isTextureBacked ( ) const

inlineoverride

Definition at line 26 of file dl_image_impeller.h.

{ return true; }

Make()

sk_sp< DlImageImpeller > impeller::DlImageImpeller::Make ( std::shared_ptr< Texture >  texture, OwningContext  owning_context = OwningContext::kIO  )

static

Definition at line 12 of file dl_image_impeller.cc.

                                                                           {
  if (!texture) {
    return nullptr;
  }
  return sk_make_sp<DlImageImpellerTexture>(std::move(texture), owning_context);
}

Referenced by impeller::DlPlayground::CreateDlImageForFixture(), impeller::GoldenPlaygroundTest::CreateDlImageForFixture(), MakeFromYUVTextures(), impeller::interop::Texture::MakeImage(), impeller::interop::ReadSamplersAndUniforms(), and impeller::testing::TEST_P().

MakeFromYUVTextures()

sk_sp< DlImageImpeller > impeller::DlImageImpeller::MakeFromYUVTextures ( AiksContext *  aiks_context, std::shared_ptr< Texture >  y_texture, std::shared_ptr< Texture >  uv_texture, YUVColorSpace  yuv_color_space  )

static

Definition at line 20 of file dl_image_impeller.cc.

                                   {
  if (!aiks_context || !y_texture || !uv_texture) {
    return nullptr;
  }
  auto yuv_to_rgb_filter_contents = FilterContents::MakeYUVToRGBFilter(
      std::move(y_texture), std::move(uv_texture), yuv_color_space);
  impeller::Entity entity;
  entity.SetBlendMode(impeller::BlendMode::kSrc);
 
  // Disable the render target cache so that this snapshot's texture will not
  // be reused later by other operations.
  const auto& renderer = aiks_context->GetContentContext();
  renderer.GetRenderTargetCache()->DisableCache();
  fml::ScopedCleanupClosure restore_cache(
      [&] { renderer.GetRenderTargetCache()->EnableCache(); });
 
  std::optional<Snapshot> snapshot =
      yuv_to_rgb_filter_contents->RenderToSnapshot(
          renderer, entity,
          {.coverage_limit = std::nullopt,
           .sampler_descriptor = std::nullopt,
           .msaa_enabled = true,
           .mip_count = 1,
           .label = "MakeYUVToRGBFilter Snapshot"});
  if (!snapshot.has_value()) {
    return nullptr;
  }
  return impeller::DlImageImpeller::Make(snapshot->texture);
}

References impeller::AiksContext::GetContentContext(), impeller::ContentContext::GetRenderTargetCache(), impeller::kSrc, Make(), impeller::FilterContents::MakeYUVToRGBFilter(), and impeller::Entity::SetBlendMode().

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

• impeller/display_list/dl_image_impeller.h
• impeller/display_list/dl_image_impeller.cc