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flutter::CanvasImage Class Referencefinal

#include <image.h>

Inheritance diagram for flutter::CanvasImage:
flutter::RefCountedDartWrappable< CanvasImage > fml::RefCountedThreadSafe< CanvasImage > tonic::DartWrappable fml::internal::RefCountedThreadSafeBase

Public Member Functions

 ~CanvasImage () override
 
Dart_Handle CreateOuterWrapping ()
 
int width ()
 
int height ()
 
Dart_Handle toByteData (int format, Dart_Handle callback)
 
void dispose ()
 
sk_sp< DlImage > image () const
 
void set_image (const sk_sp< DlImage > &image)
 
int colorSpace ()
 
- Public Member Functions inherited from flutter::RefCountedDartWrappable< CanvasImage >
virtual void RetainDartWrappableReference () const override
 
virtual void ReleaseDartWrappableReference () const override
 
- Public Member Functions inherited from fml::RefCountedThreadSafe< CanvasImage >
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 fml::RefPtr< CanvasImage > Create ()
 

Additional Inherited Members

- Public Types inherited from tonic::DartWrappable
enum  DartNativeFields { kPeerIndex , kNumberOfNativeFields }
 
- Protected Member Functions inherited from fml::RefCountedThreadSafe< CanvasImage >
 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 21 of file image.h.

Constructor & Destructor Documentation

◆ ~CanvasImage()

flutter::CanvasImage::~CanvasImage ( )
overridedefault

Member Function Documentation

◆ colorSpace()

int flutter::CanvasImage::colorSpace ( )

Definition at line 47 of file image.cc.

47 {
48 if (image_->skia_image()) {
49 return ColorSpace::kSRGB;
50 } else if (image_->impeller_texture()) {
51#if IMPELLER_SUPPORTS_RENDERING
52 return ImageEncodingImpeller::GetColorSpace(image_->impeller_texture());
53#endif // IMPELLER_SUPPORTS_RENDERING
54 }
55
56 return -1;
57}
flutter::ImageEncodingImpeller::GetColorSpace
static int GetColorSpace(const std::shared_ptr< impeller::Texture > &texture)
Definition: image_encoding_impeller.cc:223

◆ Create()

static fml::RefPtr< CanvasImage > flutter::CanvasImage::Create ( )
inlinestatic

Definition at line 28 of file image.h.

28 {
29 return fml::MakeRefCounted<CanvasImage>();
30 }

◆ CreateOuterWrapping()

Dart_Handle flutter::CanvasImage::CreateOuterWrapping ( )

Definition at line 33 of file image.cc.

33 {
34 Dart_Handle ui_lib = Dart_LookupLibrary(tonic::ToDart("dart:ui"));
35 return tonic::DartInvokeField(ui_lib, "_wrapImage", {ToDart(this)});
36}
Dart_Handle
struct _Dart_Handle * Dart_Handle
Definition: dart_api.h:258
Dart_LookupLibrary
DART_EXPORT Dart_Handle Dart_LookupLibrary(Dart_Handle url)
tonic::ToDart
Dart_Handle ToDart(const T &object)
Definition: dart_converter.h:579
tonic::DartInvokeField
Dart_Handle DartInvokeField(Dart_Handle target, const char *name, std::initializer_list< Dart_Handle > args)
Definition: dart_invoke.cc:12

◆ dispose()

void flutter::CanvasImage::dispose ( )

Definition at line 42 of file image.cc.

42 {
43 image_.reset();
44 ClearDartWrapper();
45}

◆ height()

int flutter::CanvasImage::height ( )
inline

Definition at line 36 of file image.h.

36{ return image_ ? image_->height() : 0; }

◆ image()

sk_sp< DlImage > flutter::CanvasImage::image ( ) const
inline

Definition at line 42 of file image.h.

42{ return image_; }

◆ set_image()

void flutter::CanvasImage::set_image ( const sk_sp< DlImage > &  image)
inline

Definition at line 44 of file image.h.

44 {
45 FML_DCHECK(image->isUIThreadSafe());
46 image_ = image;
47 }
flutter::CanvasImage::image
sk_sp< DlImage > image() const
Definition: image.h:42
FML_DCHECK
#define FML_DCHECK(condition)
Definition: logging.h:103

◆ toByteData()

Dart_Handle flutter::CanvasImage::toByteData ( int  format,
Dart_Handle  callback 
)

Definition at line 38 of file image.cc.

38 {
39 return EncodeImage(this, format, callback);
40}
callback
FlKeyEvent uint64_t FlKeyResponderAsyncCallback callback
Definition: fl_key_channel_responder.cc:120
flutter::format
DEF_SWITCHES_START aot vmservice shared library Name of the *so containing AOT compiled Dart assets for launching the service isolate vm snapshot The VM snapshot data that will be memory mapped as read only SnapshotAssetPath must be present isolate snapshot The isolate snapshot data that will be memory mapped as read only SnapshotAssetPath must be present cache dir Path to the cache directory This is different from the persistent_cache_path in embedder which is used for Skia shader cache icu native lib Path to the library file that exports the ICU data vm service The hostname IP address on which the Dart VM Service should be served If not defaults to or::depending on whether ipv6 is specified vm service A custom Dart VM Service port The default is to pick a randomly available open port disable vm Disable the Dart VM Service The Dart VM Service is never available in release mode disable vm service Disable mDNS Dart VM Service publication Bind to the IPv6 localhost address for the Dart VM Service Ignored if vm service host is set endless trace Enable an endless trace buffer The default is a ring buffer This is useful when very old events need to viewed For during application launch Memory usage will continue to grow indefinitely however Start app with an specific route defined on the framework flutter assets Path to the Flutter assets directory enable service port Allow the VM service to fallback to automatic port selection if binding to a specified port fails trace Trace early application lifecycle Automatically switches to an endless trace buffer trace skia Filters out all Skia trace event categories except those that are specified in this comma separated list dump skp on shader Automatically dump the skp that triggers new shader compilations This is useful for writing custom ShaderWarmUp to reduce jank By this is not enabled to reduce the overhead purge persistent Remove all existing persistent cache This is mainly for debugging purposes such as reproducing the shader compilation jank trace to Write the timeline trace to a file at the specified path The file will be in Perfetto s proto format
Definition: switches.h:203
flutter::EncodeImage
Dart_Handle EncodeImage(CanvasImage *canvas_image, int format, Dart_Handle callback_handle)
Definition: image_encoding.cc:165

◆ width()

int flutter::CanvasImage::width ( )
inline

Definition at line 34 of file image.h.

34{ return image_ ? image_->width() : 0; }
The documentation for this class was generated from the following files:
Generated on Sun Jun 23 2024 21:59:58 for Flutter Engine by doxygen 1.9.4