impeller::Playground Class Reference

#include <playground.h>

Inheritance diagram for impeller::Playground:

Public Types
using	SinglePassCallback = std::function< bool(RenderPass &pass)>
using	RenderCallback = std::function< bool(RenderTarget &render_target)>
using	GLProcAddressResolver = std::function< void *(const char *proc_name)>
using	VKProcAddressResolver = std::function< void *(void *instance, const char *proc_name)>

Public Member Functions
	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
IRect	GetWindowBounds () const
Point	GetContentScale () const
Scalar	GetSecondsElapsed () const
	Get the amount of time elapsed from the start of the playground's execution.
std::shared_ptr< Context >	GetContext () const
std::shared_ptr< Context >	MakeContext () const
bool	OpenPlaygroundHere (const 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
virtual std::unique_ptr< fml::Mapping >	OpenAssetAsMapping (std::string asset_name) const =0
virtual std::string	GetWindowTitle () const =0
fml::Status	SetCapabilities (const std::shared_ptr< Capabilities > &capabilities)
bool	WillRenderSomething () const
	Returns true if OpenPlaygroundHere will actually render anything.
GLProcAddressResolver	CreateGLProcAddressResolver () const
VKProcAddressResolver	CreateVKProcAddressResolver () const
void	SetGPUDisabled (bool disabled) const
	Mark the GPU as unavilable.
RuntimeStageBackend	GetRuntimeStageBackend () const

Static Public Member Functions
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
virtual bool	ShouldKeepRendering () const
void	SetWindowSize (ISize size)

Protected Attributes
const PlaygroundSwitches	switches_

Detailed Description

Definition at line 35 of file playground.h.

Member Typedef Documentation

GLProcAddressResolver

using impeller::Playground::GLProcAddressResolver = std::function<void*(const char* proc_name)>

Definition at line 107 of file playground.h.

RenderCallback

using impeller::Playground::RenderCallback = std::function<bool(RenderTarget& render_target)>

Definition at line 70 of file playground.h.

SinglePassCallback

using impeller::Playground::SinglePassCallback = std::function<bool(RenderPass& pass)>

Definition at line 37 of file playground.h.

VKProcAddressResolver

using impeller::Playground::VKProcAddressResolver = std::function<void*(void* instance, const char* proc_name)>

Definition at line 110 of file playground.h.

Constructor & Destructor Documentation

Playground()

impeller::Playground::Playground ( PlaygroundSwitches  switches )

explicit

Definition at line 87 of file playground.cc.

                                                  : switches_(switches) {
  InitializeGLFWOnce();
  flutter::testing::SetupSwiftshaderOnce(switches_.use_swiftshader);
}

References impeller::InitializeGLFWOnce(), flutter::testing::SetupSwiftshaderOnce(), switches_, and impeller::PlaygroundSwitches::use_swiftshader.

~Playground()

impeller::Playground::~Playground ( )

virtualdefault

Member Function Documentation

CreateGLProcAddressResolver()

Playground::GLProcAddressResolver impeller::Playground::CreateGLProcAddressResolver

(

)

const

Definition at line 528 of file playground.cc.

          {
  return impl_->CreateGLProcAddressResolver();
}

Referenced by impeller::interop::testing::PlaygroundTest::CreateContext().

CreateTextureCubeForFixture()

std::shared_ptr< Texture > impeller::Playground::CreateTextureCubeForFixture

(

std::array< const char *, 6 >

fixture_names

)

const

Definition at line 466 of file playground.cc.

                                                  {
  std::array<DecompressedImage, 6> images;
  for (size_t i = 0; i < fixture_names.size(); i++) {
    auto image = DecodeImageRGBA(
        LoadFixtureImageCompressed(OpenAssetAsMapping(fixture_names[i])));
    if (!image.has_value()) {
      return nullptr;
    }
    images[i] = image.value();
  }
 
  TextureDescriptor texture_descriptor;
  texture_descriptor.storage_mode = StorageMode::kDevicePrivate;
  texture_descriptor.type = TextureType::kTextureCube;
  texture_descriptor.format = PixelFormat::kR8G8B8A8UNormInt;
  texture_descriptor.size = images[0].GetSize();
  texture_descriptor.mip_count = 1u;
 
  auto texture =
      context_->GetResourceAllocator()->CreateTexture(texture_descriptor);
  if (!texture) {
    VALIDATION_LOG << "Could not allocate texture cube.";
    return nullptr;
  }
  texture->SetLabel("Texture cube");
 
  auto cmd_buffer = context_->CreateCommandBuffer();
  auto blit_pass = cmd_buffer->CreateBlitPass();
  for (size_t i = 0; i < fixture_names.size(); i++) {
    auto device_buffer = context_->GetResourceAllocator()->CreateBufferWithCopy(
        *images[i].GetAllocation());
    blit_pass->AddCopy(DeviceBuffer::AsBufferView(device_buffer), texture, {},
                       "", /*mip_level=*/0, /*slice=*/i);
  }
 
  if (!blit_pass->EncodeCommands() ||
      !context_->GetCommandQueue()->Submit({std::move(cmd_buffer)}).ok()) {
    VALIDATION_LOG << "Could not upload texture to device memory.";
    return nullptr;
  }
 
  return texture;
}

References impeller::DeviceBuffer::AsBufferView(), DecodeImageRGBA(), impeller::TextureDescriptor::format, i, image, images, impeller::kDevicePrivate, impeller::kR8G8B8A8UNormInt, impeller::kTextureCube, LoadFixtureImageCompressed(), impeller::TextureDescriptor::mip_count, OpenAssetAsMapping(), impeller::TextureDescriptor::size, impeller::TextureDescriptor::storage_mode, texture, impeller::TextureDescriptor::type, and VALIDATION_LOG.

CreateTextureForFixture()

std::shared_ptr< Texture > impeller::Playground::CreateTextureForFixture	(	const char *	fixture_name,
		bool	enable_mipmapping = false
	)		const

Definition at line 454 of file playground.cc.

                                  {
  auto texture = CreateTextureForMapping(
      context_, OpenAssetAsMapping(fixture_name), enable_mipmapping);
  if (texture == nullptr) {
    return nullptr;
  }
  texture->SetLabel(fixture_name);
  return texture;
}

References CreateTextureForMapping(), OpenAssetAsMapping(), and texture.

CreateTextureForMapping()

std::shared_ptr< Texture > impeller::Playground::CreateTextureForMapping ( const std::shared_ptr< Context > &  context, std::shared_ptr< fml::Mapping >  mapping, bool  enable_mipmapping = false  )

static

Definition at line 441 of file playground.cc.

                            {
  auto image = Playground::DecodeImageRGBA(
      Playground::LoadFixtureImageCompressed(std::move(mapping)));
  if (!image.has_value()) {
    return nullptr;
  }
  return CreateTextureForDecompressedImage(context, image.value(),
                                           enable_mipmapping);
}

References impeller::CreateTextureForDecompressedImage(), DecodeImageRGBA(), image, and LoadFixtureImageCompressed().

Referenced by impeller::DlPlayground::CreateDlImageForFixture(), impeller::GoldenPlaygroundTest::CreateTextureForFixture(), and CreateTextureForFixture().

CreateVKProcAddressResolver()

Playground::VKProcAddressResolver impeller::Playground::CreateVKProcAddressResolver

(

)

const

Definition at line 533 of file playground.cc.

          {
  return impl_->CreateVKProcAddressResolver();
}

Referenced by impeller::interop::testing::PlaygroundTest::CreateContext().

DecodeImageRGBA()

std::optional< DecompressedImage > impeller::Playground::DecodeImageRGBA ( const std::shared_ptr< CompressedImage > &  compressed )

static

Definition at line 380 of file playground.cc.

                                                      {
  if (compressed == nullptr) {
    return std::nullopt;
  }
  // The decoded image is immediately converted into RGBA as that format is
  // known to be supported everywhere. For image sources that don't need 32
  // bit pixel strides, this is overkill. Since this is a test fixture we
  // aren't necessarily trying to eke out memory savings here and instead
  // favor simplicity.
  auto image = compressed->Decode().ConvertToRGBA();
  if (!image.IsValid()) {
    VALIDATION_LOG << "Could not decode image.";
    return std::nullopt;
  }
 
  return image;
}

References image, and VALIDATION_LOG.

Referenced by CreateTextureCubeForFixture(), CreateTextureForMapping(), and impeller::interop::testing::PlaygroundTest::OpenAssetAsHPPTexture().

GetContentScale()

Point impeller::Playground::GetContentScale

(

)

const

Definition at line 197 of file playground.cc.

                                        {
  return impl_->GetContentScale();
}

Referenced by impeller::testing::CanRenderConicalGradientWithDithering(), impeller::testing::CanRenderSweepGradientWithDithering(), and impeller::testing::MaskBlurVariantTest().

GetContext()

std::shared_ptr< Context > impeller::Playground::GetContext

(

)

const

Definition at line 94 of file playground.cc.

                                                    {
  return context_;
}

Referenced by impeller::DlPlayground::CreateDlImageForFixture(), impeller::EntityPlayground::GetContentContext(), impeller::interop::testing::PlaygroundTest::GetInteropContext(), impeller::testing::RendererDartTest::GetIsolate(), impeller::testing::BlendFilterContentsTest::MakeTexture(), impeller::testing::GaussianBlurFilterContentsTest::MakeTexture(), impeller::testing::MatrixFilterContentsTest::MakeTexture(), impeller::testing::MorphologyFilterContentsTest::MakeTexture(), impeller::AiksPlayground::OpenPlaygroundHere(), impeller::DlPlayground::OpenPlaygroundHere(), impeller::EntityPlayground::OpenPlaygroundHere(), OpenPlaygroundHere(), impeller::RuntimeStagePlayground::RegisterStage(), and impeller::testing::RendererDartTest::RenderDartToPlayground().

GetCursorPosition()

Point impeller::Playground::GetCursorPosition

(

)

const

Definition at line 185 of file playground.cc.

                                          {
  return cursor_position_;
}

GetRuntimeStageBackend()

RuntimeStageBackend impeller::Playground::GetRuntimeStageBackend

(

)

const

Definition at line 542 of file playground.cc.

                                                             {
  return impl_->GetRuntimeStageBackend();
}

GetSecondsElapsed()

Scalar impeller::Playground::GetSecondsElapsed

(

)

const

Get the amount of time elapsed from the start of the playground's execution.

Definition at line 201 of file playground.cc.

                                           {
  return (fml::TimePoint::Now().ToEpochDelta() - start_time_).ToSecondsF();
}

References fml::TimePoint::Now().

GetWindowBounds()

IRect impeller::Playground::GetWindowBounds

(

)

const

Definition at line 193 of file playground.cc.

                                        {
  return IRect::MakeSize(window_size_);
}

References impeller::TRect< T >::MakeSize().

GetWindowSize()

ISize impeller::Playground::GetWindowSize

(

)

const

Definition at line 189 of file playground.cc.

                                      {
  return window_size_;
}

Referenced by impeller::testing::RendererDartTest::GetRenderedTextureFromDart(), OpenPlaygroundHere(), and impeller::testing::RendererDartTest::RunDartFunctionWithWindowSize().

GetWindowTitle()

virtual std::string impeller::Playground::GetWindowTitle ( ) const

pure virtual

Implemented in impeller::ComputePlaygroundTest, and impeller::PlaygroundTest.

Referenced by OpenPlaygroundHere().

IsPlaygroundEnabled()

bool impeller::Playground::IsPlaygroundEnabled

(

)

const

Definition at line 151 of file playground.cc.

                                           {
  return switches_.enable_playground;
}

References impeller::PlaygroundSwitches::enable_playground, and switches_.

Referenced by impeller::testing::RendererDartTest::RenderDartToPlayground().

LoadFixtureImageCompressed()

std::shared_ptr< CompressedImage > impeller::Playground::LoadFixtureImageCompressed ( std::shared_ptr< fml::Mapping >  mapping )

static

Definition at line 369 of file playground.cc.

                                       {
  auto compressed_image = CompressedImageSkia::Create(std::move(mapping));
  if (!compressed_image) {
    VALIDATION_LOG << "Could not create compressed image.";
    return nullptr;
  }
 
  return compressed_image;
}

References impeller::CompressedImageSkia::Create(), and VALIDATION_LOG.

Referenced by CreateTextureCubeForFixture(), CreateTextureForMapping(), and impeller::interop::testing::PlaygroundTest::OpenAssetAsHPPTexture().

MakeContext()

std::shared_ptr< Context > impeller::Playground::MakeContext

(

)

const

Definition at line 98 of file playground.cc.

                                                     {
  // Playgrounds are already making a context for each test, so we can just
  // return the `context_`.
  return context_;
}

OpenAssetAsMapping()

virtual std::unique_ptr< fml::Mapping > impeller::Playground::OpenAssetAsMapping ( std::string  asset_name ) const

pure virtual

Implemented in impeller::ComputePlaygroundTest, and impeller::PlaygroundTest.

Referenced by CreateTextureCubeForFixture(), and CreateTextureForFixture().

OpenPlaygroundHere() [1/2]

bool impeller::Playground::OpenPlaygroundHere

(

const RenderCallback &

render_callback

)

Definition at line 209 of file playground.cc.

                                                     {
  if (!switches_.enable_playground) {
    return true;
  }
 
  if (!render_callback) {
    return true;
  }
 
  IMGUI_CHECKVERSION();
  ImGui::CreateContext();
  fml::ScopedCleanupClosure destroy_imgui_context(
      []() { ImGui::DestroyContext(); });
  ImGui::StyleColorsDark();
 
  auto& io = ImGui::GetIO();
  io.IniFilename = nullptr;
  io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;
  io.ConfigWindowsResizeFromEdges = true;
 
  auto window = reinterpret_cast<GLFWwindow*>(impl_->GetWindowHandle());
  if (!window) {
    return false;
  }
  ::glfwSetWindowTitle(window, GetWindowTitle().c_str());
  ::glfwSetWindowUserPointer(window, this);
  ::glfwSetWindowSizeCallback(
      window, [](GLFWwindow* window, int width, int height) -> void {
        auto playground =
            reinterpret_cast<Playground*>(::glfwGetWindowUserPointer(window));
        if (!playground) {
          return;
        }
        playground->SetWindowSize(ISize{width, height}.Max({}));
      });
  ::glfwSetKeyCallback(window, &PlaygroundKeyCallback);
  ::glfwSetCursorPosCallback(window, [](GLFWwindow* window, double x,
                                        double y) {
    reinterpret_cast<Playground*>(::glfwGetWindowUserPointer(window))
        ->SetCursorPosition({static_cast<Scalar>(x), static_cast<Scalar>(y)});
  });
 
  ImGui_ImplGlfw_InitForOther(window, true);
  fml::ScopedCleanupClosure shutdown_imgui([]() { ImGui_ImplGlfw_Shutdown(); });
 
  ImGui_ImplImpeller_Init(context_);
  fml::ScopedCleanupClosure shutdown_imgui_impeller(
      []() { ImGui_ImplImpeller_Shutdown(); });
 
  ImGui::SetNextWindowPos({10, 10});
 
  ::glfwSetWindowSize(window, GetWindowSize().width, GetWindowSize().height);
  ::glfwSetWindowPos(window, 200, 100);
  ::glfwShowWindow(window);
 
  while (true) {
#if FML_OS_MACOSX
    fml::ScopedNSAutoreleasePool pool;
#endif
    ::glfwPollEvents();
 
    if (::glfwWindowShouldClose(window)) {
      return true;
    }
 
    ImGui_ImplGlfw_NewFrame();
 
    auto surface = impl_->AcquireSurfaceFrame(context_);
    RenderTarget render_target = surface->GetRenderTarget();
 
    ImGui::NewFrame();
    ImGui::DockSpaceOverViewport(0, ImGui::GetMainViewport(),
                                 ImGuiDockNodeFlags_PassthruCentralNode);
    bool result = render_callback(render_target);
    ImGui::Render();
 
    // Render ImGui overlay.
    {
      auto buffer = context_->CreateCommandBuffer();
      if (!buffer) {
        VALIDATION_LOG << "Could not create command buffer.";
        return false;
      }
      buffer->SetLabel("ImGui Command Buffer");
 
      auto color0 = render_target.GetColorAttachment(0);
      color0.load_action = LoadAction::kLoad;
      if (color0.resolve_texture) {
        color0.texture = color0.resolve_texture;
        color0.resolve_texture = nullptr;
        color0.store_action = StoreAction::kStore;
      }
      render_target.SetColorAttachment(color0, 0);
      render_target.SetStencilAttachment(std::nullopt);
      render_target.SetDepthAttachment(std::nullopt);
 
      auto pass = buffer->CreateRenderPass(render_target);
      if (!pass) {
        VALIDATION_LOG << "Could not create render pass.";
        return false;
      }
      pass->SetLabel("ImGui Render Pass");
      if (!host_buffer_) {
        host_buffer_ = HostBuffer::Create(
            context_->GetResourceAllocator(), context_->GetIdleWaiter(),
            context_->GetCapabilities()->GetMinimumUniformAlignment());
      }
 
      ImGui_ImplImpeller_RenderDrawData(ImGui::GetDrawData(), *pass,
                                        *host_buffer_);
 
      pass->EncodeCommands();
 
      if (!context_->GetCommandQueue()->Submit({buffer}).ok()) {
        return false;
      }
    }
 
    if (!result || !surface->Present()) {
      return false;
    }
 
    if (!ShouldKeepRendering()) {
      break;
    }
  }
 
  ::glfwHideWindow(window);
 
  return true;
}

References impeller::HostBuffer::Create(), impeller::PlaygroundSwitches::enable_playground, impeller::RenderTarget::GetColorAttachment(), GetWindowSize(), GetWindowTitle(), height, ImGui_ImplImpeller_Init(), ImGui_ImplImpeller_RenderDrawData(), ImGui_ImplImpeller_Shutdown(), impeller::kLoad, impeller::kStore, impeller::Attachment::load_action, impeller::TSize< T >::Max(), impeller::PlaygroundKeyCallback(), impeller::RenderTarget::SetColorAttachment(), impeller::RenderTarget::SetDepthAttachment(), impeller::RenderTarget::SetStencilAttachment(), SetWindowSize(), ShouldKeepRendering(), surface, switches_, VALIDATION_LOG, width, window, x, and y.

Referenced by impeller::AiksPlayground::OpenPlaygroundHere(), impeller::DlPlayground::OpenPlaygroundHere(), impeller::EntityPlayground::OpenPlaygroundHere(), impeller::EntityPlayground::OpenPlaygroundHere(), impeller::interop::testing::PlaygroundTest::OpenPlaygroundHere(), OpenPlaygroundHere(), impeller::testing::RendererDartTest::RenderDartToPlayground(), impeller::testing::TEST_P(), impeller::testing::TEST_P(), and impeller::testing::TEST_P().

OpenPlaygroundHere() [2/2]

bool impeller::Playground::OpenPlaygroundHere

(

SinglePassCallback

pass_callback

)

Definition at line 342 of file playground.cc.

                                                                    {
  return OpenPlaygroundHere(
      [context = GetContext(), &pass_callback](RenderTarget& render_target) {
        auto buffer = context->CreateCommandBuffer();
        if (!buffer) {
          return false;
        }
        buffer->SetLabel("Playground Command Buffer");
 
        auto pass = buffer->CreateRenderPass(render_target);
        if (!pass) {
          return false;
        }
        pass->SetLabel("Playground Render Pass");
 
        if (!pass_callback(*pass)) {
          return false;
        }
 
        pass->EncodeCommands();
        if (!context->GetCommandQueue()->Submit({buffer}).ok()) {
          return false;
        }
        return true;
      });
}

References GetContext(), and OpenPlaygroundHere().

SetCapabilities()

fml::Status impeller::Playground::SetCapabilities

(

const std::shared_ptr< Capabilities > &

capabilities

)

Definition at line 519 of file playground.cc.

                                                     {
  return impl_->SetCapabilities(capabilities);
}

SetGPUDisabled()

void impeller::Playground::SetGPUDisabled

(

bool

disabled

)

const

Mark the GPU as unavilable.

Only supported on the Metal backend.

Definition at line 538 of file playground.cc.

                                                {
  impl_->SetGPUDisabled(value);
}

References value.

SetupContext()

void impeller::Playground::SetupContext	(	PlaygroundBackend	backend,
		const PlaygroundSwitches &	switches
	)

Definition at line 129 of file playground.cc.

                                                                  {
  FML_CHECK(SupportsBackend(backend));
 
  impl_ = PlaygroundImpl::Create(backend, switches);
  if (!impl_) {
    FML_LOG(WARNING) << "PlaygroundImpl::Create failed.";
    return;
  }
 
  context_ = impl_->GetContext();
}

References impeller::PlaygroundImpl::Create(), FML_CHECK, FML_LOG, and SupportsBackend().

Referenced by impeller::ComputePlaygroundTest::SetUp(), and impeller::PlaygroundTest::SetUp().

SetupWindow()

void impeller::Playground::SetupWindow

(

)

Definition at line 142 of file playground.cc.

                             {
  if (!context_) {
    FML_LOG(WARNING) << "Asked to set up a window with no context (call "
                        "SetupContext first).";
    return;
  }
  start_time_ = fml::TimePoint::Now().ToEpochDelta();
}

References FML_LOG, fml::TimePoint::Now(), and fml::TimePoint::ToEpochDelta().

Referenced by impeller::ComputePlaygroundTest::SetUp(), and impeller::PlaygroundTest::SetUp().

SetWindowSize()

void impeller::Playground::SetWindowSize ( ISize  size )

protected

Definition at line 511 of file playground.cc.

                                         {
  window_size_ = size;
}

Referenced by OpenPlaygroundHere().

ShouldKeepRendering()

bool impeller::Playground::ShouldKeepRendering ( ) const

protectedvirtual

Definition at line 515 of file playground.cc.

                                           {
  return true;
}

Referenced by OpenPlaygroundHere().

ShouldOpenNewPlaygrounds()

bool impeller::Playground::ShouldOpenNewPlaygrounds ( )

static

Definition at line 168 of file playground.cc.

                                          {
  return gShouldOpenNewPlaygrounds;
}

References impeller::gShouldOpenNewPlaygrounds.

Referenced by impeller::ComputePlaygroundTest::SetUp(), and impeller::PlaygroundTest::SetUp().

SupportsBackend()

bool impeller::Playground::SupportsBackend ( PlaygroundBackend  backend )

static

Definition at line 104 of file playground.cc.

                                                          {
  switch (backend) {
    case PlaygroundBackend::kMetal:
    case PlaygroundBackend::kMetalSDF:
#if IMPELLER_ENABLE_METAL
      return true;
#else   // IMPELLER_ENABLE_METAL
      return false;
#endif  // IMPELLER_ENABLE_METAL
    case PlaygroundBackend::kOpenGLES:
#if IMPELLER_ENABLE_OPENGLES
      return true;
#else   // IMPELLER_ENABLE_OPENGLES
      return false;
#endif  // IMPELLER_ENABLE_OPENGLES
    case PlaygroundBackend::kVulkan:
#if IMPELLER_ENABLE_VULKAN
      return PlaygroundImplVK::IsVulkanDriverPresent();
#else   // IMPELLER_ENABLE_VULKAN
      return false;
#endif  // IMPELLER_ENABLE_VULKAN
  }
  FML_UNREACHABLE();
}

References FML_UNREACHABLE, impeller::PlaygroundImplVK::IsVulkanDriverPresent(), impeller::kMetal, impeller::kMetalSDF, impeller::kOpenGLES, and impeller::kVulkan.

Referenced by impeller::ComputePlaygroundTest::SetUp(), impeller::PlaygroundTest::SetUp(), and SetupContext().

TeardownWindow()

void impeller::Playground::TeardownWindow

(

)

Definition at line 155 of file playground.cc.

                                {
  if (host_buffer_) {
    host_buffer_.reset();
  }
  if (context_) {
    context_->Shutdown();
  }
  context_.reset();
  impl_.reset();
}

Referenced by impeller::ComputePlaygroundTest::TearDown(), and impeller::PlaygroundTest::TearDown().

WillRenderSomething()

bool impeller::Playground::WillRenderSomething

(

)

const

Returns true if OpenPlaygroundHere will actually render anything.

Definition at line 524 of file playground.cc.

                                           {
  return switches_.enable_playground;
}

References impeller::PlaygroundSwitches::enable_playground, and switches_.

Member Data Documentation

switches_

const PlaygroundSwitches impeller::Playground::switches_

protected

Definition at line 122 of file playground.h.

Referenced by impeller::interop::testing::PlaygroundTest::CreateContext(), impeller::PlaygroundTest::GetWindowTitle(), IsPlaygroundEnabled(), OpenPlaygroundHere(), impeller::DlPlayground::OpenPlaygroundHere(), impeller::EntityPlayground::OpenPlaygroundHere(), impeller::EntityPlayground::OpenPlaygroundHere(), Playground(), impeller::ComputePlaygroundTest::SetUp(), impeller::PlaygroundTest::SetUp(), and WillRenderSomething().

---

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

• impeller/playground/playground.h
• impeller/playground/playground.cc