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Public Member Functions | Static Public Member Functions | List of all members
flutter::DlImageGPU Class Referencefinal

#include <display_list_image_gpu.h>

Inheritance diagram for flutter::DlImageGPU:
flutter::DlImageSkia flutter::DlImage

Public Member Functions

 ~DlImageGPU () override
 
sk_sp< SkImage > skia_image () const override
 
bool isOpaque () const override
 If the pixel format of this image ignores alpha, this returns true. This method might conservatively return false when it cannot guarnatee an opaque image, for example when the pixel format of the image supports alpha but the image is made up of entirely opaque pixels.
 
bool isUIThreadSafe () const override
 If the underlying platform image held by this object has no threading requirements for the release of that image (or if arrangements have already been made to forward that image to the correct thread upon deletion), this method returns true.
 
DlISize GetSize () const override
 
virtual size_t GetApproximateByteSize () const override
 
- Public Member Functions inherited from flutter::DlImageSkia
 DlImageSkia (sk_sp< SkImage > image)
 
 ~DlImageSkia () override
 
Type GetImageType () const override
 Returns the backend type of this image.
 
const DlImageSkia * asSkiaImage () const override
 Safe downcast to DlImageSkia.
 
bool isTextureBacked () const override
 Returns true if the image is backed by a GPU texture.
 
bool isOpaque () const override
 If the pixel format of this image ignores alpha, this returns true. This method might conservatively return false when it cannot guarnatee an opaque image, for example when the pixel format of the image supports alpha but the image is made up of entirely opaque pixels.
 
bool isUIThreadSafe () const override
 If the underlying platform image held by this object has no threading requirements for the release of that image (or if arrangements have already been made to forward that image to the correct thread upon deletion), this method returns true.
 
DlISize GetSize () const override
 
size_t GetApproximateByteSize () const override
 
DlColorSpace GetColorSpace () const override
 Gets the color space of the image.
 
- Public Member Functions inherited from flutter::DlImage
virtual ~DlImage ()
 
virtual const impeller::DlImageImpeller * asImpellerImage () const
 Safe downcast to DlImageImpeller.
 
int width () const
 
int height () const
 
DlIRect GetBounds () const
 
virtual OwningContext owning_context () const
 
virtual std::optional< std::string > get_error () const
 
bool Equals (const DlImage *other) const
 
bool Equals (const DlImage &other) const
 
bool Equals (const sk_sp< const DlImage > &other) const
 

Static Public Member Functions

static sk_sp< DlImageGPU > Make (SkiaGPUObject< SkImage > image)
 
- Static Public Member Functions inherited from flutter::DlImageSkia
static sk_sp< DlImage > Make (const SkImage *image)
 
static sk_sp< DlImage > Make (sk_sp< SkImage > image)
 

Additional Inherited Members

- Public Types inherited from flutter::DlImage
enum class  OwningContext {
  kRaster ,
  kIO
}
 
enum class  Type {
  kSkia ,
  kImpeller
}
 The backend type of this image. More...
 
- Protected Member Functions inherited from flutter::DlImage
 DlImage ()
 

Detailed Description

Definition at line 15 of file display_list_image_gpu.h.

Constructor & Destructor Documentation

◆ ~DlImageGPU()

flutter::DlImageGPU::~DlImageGPU ( )
override

Definition at line 22 of file display_list_image_gpu.cc.

22{}

Member Function Documentation

◆ GetApproximateByteSize()

size_t flutter::DlImageGPU::GetApproximateByteSize ( ) const
overridevirtual
Returns
The approximate byte size of the allocation of this image. This takes into account details such as mip-mapping. The allocation is usually resident in device memory.

Implements flutter::DlImage.

Definition at line 49 of file display_list_image_gpu.cc.

49 {
50 auto size = sizeof(*this);
51 if (auto image = skia_image()) {
52 const auto& info = image->imageInfo();
53 const auto kMipmapOverhead = image->hasMipmaps() ? 4.0 / 3.0 : 1.0;
54 const size_t image_byte_size = info.computeMinByteSize() * kMipmapOverhead;
55 size += image_byte_size;
56 }
57 return size;
58}
flutter::DlImageGPU::skia_image
sk_sp< SkImage > skia_image() const override
Definition display_list_image_gpu.cc:25
image
FlutterVulkanImage * image
Definition embedder_test_backingstore_producer_vulkan.cc:19
flutter::size
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Definition switch_defs.h:241

References image, flutter::size, and skia_image().

◆ GetSize()

DlISize flutter::DlImageGPU::GetSize ( ) const
overridevirtual
Returns
The dimensions of the pixel grid.

Implements flutter::DlImage.

Definition at line 43 of file display_list_image_gpu.cc.

43 {
44 const auto image = skia_image();
45 return image ? ToDlISize(image->dimensions()) : DlISize();
46}
flutter::ToDlISize
const DlISize & ToDlISize(const SkISize &size)
Definition dl_geometry_conversions.h:42
flutter::DlISize
impeller::ISize32 DlISize
Definition dl_geometry_types.h:26

References image, skia_image(), and flutter::ToDlISize().

◆ isOpaque()

bool flutter::DlImageGPU::isOpaque ( ) const
overridevirtual

If the pixel format of this image ignores alpha, this returns true. This method might conservatively return false when it cannot guarnatee an opaque image, for example when the pixel format of the image supports alpha but the image is made up of entirely opaque pixels.

Returns
True if the pixel format of this image ignores alpha.

Implements flutter::DlImage.

Definition at line 30 of file display_list_image_gpu.cc.

30 {
31 if (auto image = skia_image()) {
32 return image->isOpaque();
33 }
34 return false;
35}

References image, and skia_image().

◆ isUIThreadSafe()

bool flutter::DlImageGPU::isUIThreadSafe ( ) const
overridevirtual

If the underlying platform image held by this object has no threading requirements for the release of that image (or if arrangements have already been made to forward that image to the correct thread upon deletion), this method returns true.

Returns
True if the underlying image is held in a thread-safe manner.

Implements flutter::DlImage.

Definition at line 38 of file display_list_image_gpu.cc.

38 {
39 return true;
40}

◆ Make()

sk_sp< DlImageGPU > flutter::DlImageGPU::Make ( SkiaGPUObject< SkImage >  image)
static

Definition at line 11 of file display_list_image_gpu.cc.

11 {
12 if (!image.skia_object()) {
13 return nullptr;
14 }
15 return sk_sp<DlImageGPU>(new DlImageGPU(std::move(image)));
16}

References image.

Referenced by flutter::ImageDecoderSkia::Decode(), and flutter::Picture::DoRasterizeToImage().

◆ skia_image()

sk_sp< SkImage > flutter::DlImageGPU::skia_image ( ) const
overridevirtual

Reimplemented from flutter::DlImageSkia.

Definition at line 25 of file display_list_image_gpu.cc.

25 {
26 return image_.skia_object();
27};
flutter::SkiaGPUObject::skia_object
sk_sp< SkiaObjectType > skia_object() const
Definition skia_gpu_object.h:180

References flutter::SkiaGPUObject< T >::skia_object().

Referenced by GetApproximateByteSize(), GetSize(), and isOpaque().

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