flutter::SceneShader Class Reference

#include <scene_shader.h>

Inheritance diagram for flutter::SceneShader:

Public Member Functions
	~SceneShader () override
void	SetCameraTransform (const tonic::Float64List &matrix4)
void	Dispose ()
std::shared_ptr< DlColorSource >	shader (DlImageSampling) override
Public Member Functions inherited from flutter::Shader
	~Shader () override
virtual std::shared_ptr< DlColorSource >	shader (DlImageSampling)=0
Public Member Functions inherited from flutter::RefCountedDartWrappable< Shader >
virtual void	RetainDartWrappableReference () const override
virtual void	ReleaseDartWrappableReference () const override
Public Member Functions inherited from fml::RefCountedThreadSafe< Shader >
void	Release () const
Public Member Functions inherited from fml::internal::RefCountedThreadSafeBase
void	AddRef () const
bool	HasOneRef () const
void	AssertHasOneRef () const
Public Member Functions inherited from tonic::DartWrappable
	DartWrappable ()
virtual const DartWrapperInfo &	GetDartWrapperInfo () const =0
virtual void	RetainDartWrappableReference () const =0
virtual void	ReleaseDartWrappableReference () const =0
Dart_Handle	CreateDartWrapper (DartState *dart_state)
void	AssociateWithDartWrapper (Dart_Handle wrappable)
void	ClearDartWrapper ()
Dart_WeakPersistentHandle	dart_wrapper () const

Static Public Member Functions
static void	Create (Dart_Handle wrapper, Dart_Handle scene_node_handle)

Additional Inherited Members
Public Types inherited from tonic::DartWrappable
enum	DartNativeFields { kPeerIndex , kNumberOfNativeFields }
Protected Member Functions inherited from flutter::Shader
	Shader ()
Protected Member Functions inherited from fml::RefCountedThreadSafe< Shader >
	RefCountedThreadSafe ()
	~RefCountedThreadSafe ()
Protected Member Functions inherited from fml::internal::RefCountedThreadSafeBase
	RefCountedThreadSafeBase ()
	~RefCountedThreadSafeBase ()
bool	Release () const
void	Adopt ()
Protected Member Functions inherited from tonic::DartWrappable
virtual	~DartWrappable ()
Static Protected Member Functions inherited from tonic::DartWrappable
static Dart_PersistentHandle	GetTypeForWrapper (tonic::DartState *dart_state, const tonic::DartWrapperInfo &wrapper_info)

Detailed Description

Definition at line 20 of file scene_shader.h.

Constructor & Destructor Documentation

~SceneShader()

flutter::SceneShader::~SceneShader ( )

overridedefault

Member Function Documentation

Create()

void flutter::SceneShader::Create ( Dart_Handle  wrapper, Dart_Handle  scene_node_handle  )

static

Definition at line 31 of file scene_shader.cc.

                                                                           {
  auto* scene_node =
      tonic::DartConverter<SceneNode*>::FromDart(scene_node_handle);
  if (!scene_node) {
    return;
  }
 
  auto res = fml::MakeRefCounted<SceneShader>(fml::Ref(scene_node));
  res->AssociateWithDartWrapper(wrapper);
}

Dispose()

void flutter::SceneShader::Dispose

(

)

Definition at line 90 of file scene_shader.cc.

                          {
  scene_node_ = nullptr;
  ClearDartWrapper();
}

SetCameraTransform()

void flutter::SceneShader::SetCameraTransform

(

const tonic::Float64List &

matrix4

)

Definition at line 42 of file scene_shader.cc.

                                                                    {
  camera_transform_ =
      impeller::Matrix(static_cast<impeller::Scalar>(matrix4[0]),
                       static_cast<impeller::Scalar>(matrix4[1]),
                       static_cast<impeller::Scalar>(matrix4[2]),
                       static_cast<impeller::Scalar>(matrix4[3]),
                       static_cast<impeller::Scalar>(matrix4[4]),
                       static_cast<impeller::Scalar>(matrix4[5]),
                       static_cast<impeller::Scalar>(matrix4[6]),
                       static_cast<impeller::Scalar>(matrix4[7]),
                       static_cast<impeller::Scalar>(matrix4[8]),
                       static_cast<impeller::Scalar>(matrix4[9]),
                       static_cast<impeller::Scalar>(matrix4[10]),
                       static_cast<impeller::Scalar>(matrix4[11]),
                       static_cast<impeller::Scalar>(matrix4[12]),
                       static_cast<impeller::Scalar>(matrix4[13]),
                       static_cast<impeller::Scalar>(matrix4[14]),
                       static_cast<impeller::Scalar>(matrix4[15]));
}

shader()

std::shared_ptr< DlColorSource > flutter::SceneShader::shader ( DlImageSampling  sampling )

overridevirtual

Implements flutter::Shader.

Definition at line 71 of file scene_shader.cc.

                                                                         {
  FML_CHECK(scene_node_);
 
  if (!scene_node_->node_) {
    return nullptr;
  }
 
  // TODO(bdero): Gather the mutation log and include it in the scene color
  // source.
 
  auto source = std::make_shared<DlSceneColorSource>(
      scene_node_->node_, camera_transform_.IsIdentity()
                              ? DefaultCameraTransform()
                              : camera_transform_);
  // Just a sanity check, all scene shaders should be thread-safe
  FML_DCHECK(source->isUIThreadSafe());
  return source;
}

---

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

• lib/ui/painting/scene/scene_shader.h
• lib/ui/painting/scene/scene_shader.cc