#include <MutableTextureState.h>

Inheritance diagram for skgpu::MutableTextureState:

Public Member Functions
	MutableTextureState ()

	~MutableTextureState () override

	MutableTextureState (const MutableTextureState &that)

MutableTextureState &	operator= (const MutableTextureState &that)

void	set (const MutableTextureState &that)

BackendApi	backend () const

bool	isValid () const

Public Member Functions inherited from SkRefCntBase
	SkRefCntBase ()

virtual	~SkRefCntBase ()

bool	unique () const

void	ref () const

void	unref () const

Friends
class	MutableTextureStateData

class	MutableTextureStatePriv

Detailed Description

Since Skia and clients can both modify gpu textures and their connected state, Skia needs a way for clients to inform us if they have modifiend any of this state. In order to not need setters for every single API and state, we use this class to be a generic wrapper around all the mutable state. This class is used for calls that inform Skia of these texture/image state changes by the client as well as for requesting state changes to be done by Skia. The backend specific state that is wrapped by this class are located in files like:

include/gpu/vk/VulkanMutableTextureState.h

Definition at line 30 of file MutableTextureState.h.

Constructor & Destructor Documentation

◆ MutableTextureState() [1/2]

skgpu::MutableTextureState::MutableTextureState ( )

Definition at line 14 of file MutableTextureState.cpp.

                                        :
    fBackend(BackendApi::kUnsupported),
    fIsValid(false) {}

◆ ~MutableTextureState()

skgpu::MutableTextureState::~MutableTextureState ( )

overridedefault

◆ MutableTextureState() [2/2]

skgpu::MutableTextureState::MutableTextureState ( const MutableTextureState & that )

Definition at line 19 of file MutableTextureState.cpp.

                                                                       : fIsValid(false) {
    this->set(that);
}

Member Function Documentation

◆ backend()

BackendApi skgpu::MutableTextureState::backend ( ) const

inline

Definition at line 41 of file MutableTextureState.h.

41{ return fBackend; }

◆ isValid()

bool skgpu::MutableTextureState::isValid ( ) const

inline

Definition at line 44 of file MutableTextureState.h.

44{ return fIsValid; }

◆ operator=()

MutableTextureState & skgpu::MutableTextureState::operator= ( const MutableTextureState & that )

Definition at line 23 of file MutableTextureState.cpp.

                                                                                   {
    if (this != &that) {
        this->set(that);
    }
    return *this;
}

◆ set()

void skgpu::MutableTextureState::set ( const MutableTextureState & that )

Definition at line 30 of file MutableTextureState.cpp.

                                                             {
    SkASSERT(!fIsValid || this->fBackend == that.fBackend);
    fIsValid = that.fIsValid;
    fBackend = that.fBackend;
    if (!fIsValid) {
        return;
    }
    fStateData.reset();
    switch (fBackend) {
        case BackendApi::kVulkan:
            that.fStateData->copyTo(fStateData);
            break;
        default:
            SK_ABORT("Unknown BackendApi");
    }
}

Friends And Related Symbol Documentation

◆ MutableTextureStateData

friend class MutableTextureStateData

friend

Definition at line 47 of file MutableTextureState.h.

◆ MutableTextureStatePriv

friend class MutableTextureStatePriv