An external texture implementation for Vulkan that uses OpenGL to Vulkan texture interop to read SurfaceTexture based image data and render it into a Vulkan texture. More...

#include <surface_texture_external_texture_vk_impeller.h>

Inheritance diagram for flutter::SurfaceTextureExternalTextureVKImpeller:

Public Member Functions
	SurfaceTextureExternalTextureVKImpeller (std::shared_ptr< impeller::ContextVK > context, int64_t id, const fml::jni::ScopedJavaGlobalRef< jobject > &surface_texture, const std::shared_ptr< PlatformViewAndroidJNI > &jni_facade)

	~SurfaceTextureExternalTextureVKImpeller () override

	SurfaceTextureExternalTextureVKImpeller (const SurfaceTextureExternalTextureVKImpeller &)=delete

SurfaceTextureExternalTextureVKImpeller &	operator= (const SurfaceTextureExternalTextureVKImpeller &)=delete

Public Member Functions inherited from flutter::SurfaceTextureExternalTexture
	SurfaceTextureExternalTexture (int64_t id, const fml::jni::ScopedJavaGlobalRef< jobject > &surface_texture, const std::shared_ptr< PlatformViewAndroidJNI > &jni_facade)

	~SurfaceTextureExternalTexture () override

Public Member Functions inherited from flutter::Texture
	Texture (int64_t id)

virtual	~Texture ()

int64_t	Id ()

Public Member Functions inherited from flutter::ContextListener
	ContextListener ()

	~ContextListener ()

Additional Inherited Members
Protected Types inherited from flutter::SurfaceTextureExternalTexture
enum class	AttachmentState { kUninitialized , kAttached , kDetached }
	Specifies how this instance is bound to the underlying surface texture. More...

Protected Member Functions inherited from flutter::SurfaceTextureExternalTexture
const SkM44 &	GetCurrentUVTransformation () const
	Get the transformation that should be applied to the UV texture coordinates when sampling from this texture.

void	Attach (int gl_tex_id)
	Attaches the given OpenGL texture handle to the surface texture via a bind operation.

bool	ShouldUpdate ()

void	Update ()
	Update the surface texture contents and transformation matrix.

Protected Attributes inherited from flutter::SurfaceTextureExternalTexture
std::shared_ptr< PlatformViewAndroidJNI >	jni_facade_

fml::jni::ScopedJavaGlobalRef< jobject >	surface_texture_

AttachmentState	state_ = AttachmentState::kUninitialized

sk_sp< flutter::DlImage >	dl_image_

Detailed Description

An external texture implementation for Vulkan that uses OpenGL to Vulkan texture interop to read SurfaceTexture based image data and render it into a Vulkan texture.

Unlike other zero-copy implementations, the OpenGL to Vulkan texture interop has the additional overhead of one device-device copy and allocates one offscreen texture. For this reason, one of the "Image" based external texture implementations are a recommended replacement for this class. For example ImageExternalTextureVKImpeller.

This implementation is used only as a fallback during the migration away from the SurfaceTexture based plugin APIs. For more information about the plugin API migration, see https://docs.flutter.dev/release/breaking-changes/android-surface-plugins.

See also: ImageExternalTextureVKImpeller

Definition at line 39 of file surface_texture_external_texture_vk_impeller.h.

Constructor & Destructor Documentation

◆ SurfaceTextureExternalTextureVKImpeller() [1/2]

flutter::SurfaceTextureExternalTextureVKImpeller::SurfaceTextureExternalTextureVKImpeller	(	std::shared_ptr< impeller::ContextVK >	context,
		int64_t	id,
		const fml::jni::ScopedJavaGlobalRef< jobject > &	surface_texture,
		const std::shared_ptr< PlatformViewAndroidJNI > &	jni_facade
	)

Definition at line 24 of file surface_texture_external_texture_vk_impeller.cc.

    : SurfaceTextureExternalTexture(id, surface_texture, jni_facade),
      context_(std::move(context)),
      trampoline_(std::make_shared<glvk::Trampoline>()) {
  is_valid_ = trampoline_->IsValid();
}

◆ ~SurfaceTextureExternalTextureVKImpeller()

flutter::SurfaceTextureExternalTextureVKImpeller::~SurfaceTextureExternalTextureVKImpeller ( )

overridedefault

◆ SurfaceTextureExternalTextureVKImpeller() [2/2]

flutter::SurfaceTextureExternalTextureVKImpeller::SurfaceTextureExternalTextureVKImpeller ( const SurfaceTextureExternalTextureVKImpeller & )

delete

Member Function Documentation

◆ operator=()

SurfaceTextureExternalTextureVKImpeller & flutter::SurfaceTextureExternalTextureVKImpeller::operator= ( const SurfaceTextureExternalTextureVKImpeller & )