impeller::DlPlayground Class Reference

#include <dl_playground.h>

Inheritance diagram for impeller::DlPlayground:

Public Types
using	DisplayListPlaygroundCallback = std::function< sk_sp< flutter::DisplayList >()>
Public Types inherited from impeller::Playground
using	SinglePassCallback = std::function< bool(RenderPass &pass)>

Public Member Functions
	DlPlayground ()
	~DlPlayground ()
bool	OpenPlaygroundHere (flutter::DisplayListBuilder &builder)
bool	OpenPlaygroundHere (sk_sp< flutter::DisplayList > list)
bool	OpenPlaygroundHere (DisplayListPlaygroundCallback callback)
SkFont	CreateTestFontOfSize (SkScalar scalar)
SkFont	CreateTestFont ()
sk_sp< flutter::DlImage >	CreateDlImageForFixture (const char *fixture_name, bool enable_mipmapping=false) const
Public Member Functions inherited from impeller::PlaygroundTest
	PlaygroundTest ()
virtual	~PlaygroundTest ()
void	SetUp () override
void	TearDown () override
PlaygroundBackend	GetBackend () const
std::unique_ptr< fml::Mapping >	OpenAssetAsMapping (std::string asset_name) const override
RuntimeStage::Map	OpenAssetAsRuntimeStage (const char *asset_name) const
std::string	GetWindowTitle () const override
Public Member Functions inherited from impeller::Playground
	Playground (PlaygroundSwitches switches)
virtual	~Playground ()
void	SetupContext (PlaygroundBackend backend, const PlaygroundSwitches &switches)
void	SetupWindow ()
void	TeardownWindow ()
bool	IsPlaygroundEnabled () const
Point	GetCursorPosition () const
ISize	GetWindowSize () const
Point	GetContentScale () const
Scalar	GetSecondsElapsed () const
	Get the amount of time elapsed from the start of the playground's execution. More...
std::shared_ptr< Context >	GetContext () const
std::shared_ptr< Context >	MakeContext () const
bool	OpenPlaygroundHere (const Renderer::RenderCallback &render_callback)
bool	OpenPlaygroundHere (SinglePassCallback pass_callback)
std::shared_ptr< Texture >	CreateTextureForFixture (const char *fixture_name, bool enable_mipmapping=false) const
std::shared_ptr< Texture >	CreateTextureCubeForFixture (std::array< const char *, 6 > fixture_names) const
fml::Status	SetCapabilities (const std::shared_ptr< Capabilities > &capabilities)
bool	WillRenderSomething () const

Additional Inherited Members
Static Public Member Functions inherited from impeller::Playground
static bool	ShouldOpenNewPlaygrounds ()
static std::shared_ptr< CompressedImage >	LoadFixtureImageCompressed (std::shared_ptr< fml::Mapping > mapping)
static std::optional< DecompressedImage >	DecodeImageRGBA (const std::shared_ptr< CompressedImage > &compressed)
static std::shared_ptr< Texture >	CreateTextureForMapping (const std::shared_ptr< Context > &context, std::shared_ptr< fml::Mapping > mapping, bool enable_mipmapping=false)
static bool	SupportsBackend (PlaygroundBackend backend)
Protected Member Functions inherited from impeller::Playground
void	SetWindowSize (ISize size)
Protected Attributes inherited from impeller::Playground
const PlaygroundSwitches	switches_

Detailed Description

Definition at line 15 of file dl_playground.h.

Member Typedef Documentation

DisplayListPlaygroundCallback

using impeller::DlPlayground::DisplayListPlaygroundCallback = std::function<sk_sp<flutter::DisplayList>()>

Definition at line 18 of file dl_playground.h.

Constructor & Destructor Documentation

DlPlayground()

impeller::DlPlayground::DlPlayground ( )

default

~DlPlayground()

impeller::DlPlayground::~DlPlayground ( )

default

Member Function Documentation

CreateDlImageForFixture()

sk_sp< flutter::DlImage > impeller::DlPlayground::CreateDlImageForFixture	(	const char *	fixture_name,
		bool	enable_mipmapping = false
	)		const

Definition at line 88 of file dl_playground.cc.

                                  {
  std::shared_ptr<fml::Mapping> mapping =
      flutter::testing::OpenFixtureAsMapping(fixture_name);
  std::shared_ptr<Texture> texture = Playground::CreateTextureForMapping(
      GetContext(), mapping, enable_mipmapping);
  if (texture) {
    texture->SetLabel(fixture_name);
  }
  return DlImageImpeller::Make(texture);
}

References impeller::Playground::CreateTextureForMapping(), impeller::Playground::GetContext(), and impeller::DlImageImpeller::Make().

CreateTestFont()

SkFont impeller::DlPlayground::CreateTestFont

(

)

Definition at line 84 of file dl_playground.cc.

                                    {
  return CreateTestFontOfSize(50);
}

References CreateTestFontOfSize().

CreateTestFontOfSize()

SkFont impeller::DlPlayground::CreateTestFontOfSize

(

SkScalar

scalar

)

Definition at line 76 of file dl_playground.cc.

                                                         {
  static constexpr const char* kTestFontFixture = "Roboto-Regular.ttf";
  auto mapping = flutter::testing::OpenFixtureAsSkData(kTestFontFixture);
  FML_CHECK(mapping);
  sk_sp<SkFontMgr> font_mgr = txt::GetDefaultFontManager();
  return SkFont{font_mgr->makeFromData(mapping), scalar};
}

Referenced by CreateTestFont().

OpenPlaygroundHere() [1/3]

bool impeller::DlPlayground::OpenPlaygroundHere

(

DisplayListPlaygroundCallback

callback

)

Definition at line 34 of file dl_playground.cc.

                                                                            {
  if (!switches_.enable_playground) {
    return true;
  }
 
  AiksContext context(GetContext(), TypographerContextSkia::Make());
  if (!context.IsValid()) {
    return false;
  }
  return Playground::OpenPlaygroundHere(
      [&context, &callback](RenderTarget& render_target) -> bool {
        static bool wireframe = false;
        if (ImGui::IsKeyPressed(ImGuiKey_Z)) {
          wireframe = !wireframe;
          context.GetContentContext().SetWireframe(wireframe);
        }
 
        auto list = callback();
 
#if ENABLE_EXPERIMENTAL_CANVAS
        TextFrameDispatcher collector(context.GetContentContext(), Matrix());
        list->Dispatch(collector);
 
        ExperimentalDlDispatcher impeller_dispatcher(
            context.GetContentContext(), render_target,
            list->root_has_backdrop_filter(), list->max_root_blend_mode(),
            IRect::MakeMaximum());
        list->Dispatch(impeller_dispatcher);
        impeller_dispatcher.FinishRecording();
        context.GetContentContext().GetTransientsBuffer().Reset();
        context.GetContentContext().GetLazyGlyphAtlas()->ResetTextFrames();
        return true;
#else
        DlDispatcher dispatcher;
        list->Dispatch(dispatcher);
        auto picture = dispatcher.EndRecordingAsPicture();
 
        return context.Render(picture, render_target, true);
#endif
      });
}

References impeller::PlaygroundSwitches::enable_playground, impeller::DlDispatcherBase::EndRecordingAsPicture(), impeller::ExperimentalDlDispatcher::FinishRecording(), impeller::AiksContext::GetContentContext(), impeller::Playground::GetContext(), impeller::ContentContext::GetLazyGlyphAtlas(), impeller::ContentContext::GetTransientsBuffer(), impeller::AiksContext::IsValid(), impeller::TypographerContextSkia::Make(), impeller::TRect< T >::MakeMaximum(), impeller::Playground::OpenPlaygroundHere(), impeller::AiksContext::Render(), impeller::HostBuffer::Reset(), and impeller::Playground::switches_.

OpenPlaygroundHere() [2/3]

bool impeller::DlPlayground::OpenPlaygroundHere

(

flutter::DisplayListBuilder &

builder

)

Definition at line 26 of file dl_playground.cc.

                                                                        {
  return OpenPlaygroundHere(builder.Build());
}

Referenced by OpenPlaygroundHere().

OpenPlaygroundHere() [3/3]

bool impeller::DlPlayground::OpenPlaygroundHere

(

sk_sp< flutter::DisplayList >

list

)

Definition at line 30 of file dl_playground.cc.

                                                                    {
  return OpenPlaygroundHere([&list]() { return list; });
}

References OpenPlaygroundHere().

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

• impeller/display_list/dl_playground.h
• impeller/display_list/dl_playground.cc