skgpu::ResourceKey Class Reference

#include <ResourceKey.h>

Inheritance diagram for skgpu::ResourceKey:

Classes
class	Builder

Public Member Functions
uint32_t	hash () const
size_t	size () const
void	reset ()
bool	isValid () const

Protected Member Functions
	ResourceKey ()
bool	operator== (const ResourceKey &that) const
ResourceKey &	operator= (const ResourceKey &that)
uint32_t	domain () const
size_t	dataSize () const
const uint32_t *	data () const

Static Protected Attributes
static const uint32_t	kInvalidDomain = 0

Friends
class	::TestResource

Detailed Description

Base class for all gpu Resource cache keys. There are two types of cache keys. Refer to the comments for each key type below.

Definition at line 35 of file ResourceKey.h.

Constructor & Destructor Documentation

ResourceKey()

skgpu::ResourceKey::ResourceKey ( )

inlineprotected

Definition at line 97 of file ResourceKey.h.

{ this->reset(); }

Member Function Documentation

data()

const uint32_t * skgpu::ResourceKey::data ( ) const

inlineprotected

ptr to the key data, excluding meta-data (hash, domain, etc).

Definition at line 127 of file ResourceKey.h.

                                 {
        this->validate();
        return &fKey[kMetaDataCnt];
    }

dataSize()

size_t skgpu::ResourceKey::dataSize ( ) const

inlineprotected

size of the key data, excluding meta-data (hash, domain, etc).

Definition at line 124 of file ResourceKey.h.

{ return this->size() - 4 * kMetaDataCnt; }

domain()

uint32_t skgpu::ResourceKey::domain ( ) const

inlineprotected

Definition at line 121 of file ResourceKey.h.

{ return fKey[kDomainAndSize_MetaDataIdx] & 0xffff; }

hash()

uint32_t skgpu::ResourceKey::hash ( ) const

inline

Definition at line 37 of file ResourceKey.h.

                          {
        this->validate();
        return fKey[kHash_MetaDataIdx];
    }

isValid()

bool skgpu::ResourceKey::isValid ( ) const

inline

Definition at line 55 of file ResourceKey.h.

{ return kInvalidDomain != this->domain(); }

operator=()

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

inlineprotected

Definition at line 106 of file ResourceKey.h.

                                                    {
        if (this != &that) {
            if (!that.isValid()) {
                this->reset();
            } else {
                size_t bytes = that.size();
                SkASSERT(SkIsAlign4(bytes));
                fKey.reset(bytes / sizeof(uint32_t));
                memcpy(fKey.get(), that.fKey.get(), bytes);
                this->validate();
            }
        }
        return *this;
    }

operator==()

bool skgpu::ResourceKey::operator== ( const ResourceKey &  that ) const

inlineprotected

Definition at line 99 of file ResourceKey.h.

                                                   {
        // Both keys should be sized to at least contain the meta data. The metadata contains each
        // key's length. So the second memcmp should only run if the keys have the same length.
        return 0 == memcmp(fKey.get(), that.fKey.get(), kMetaDataCnt*sizeof(uint32_t)) &&
               0 == memcmp(&fKey[kMetaDataCnt], &that.fKey[kMetaDataCnt], this->dataSize());
    }

reset()

void skgpu::ResourceKey::reset ( )

inline

Reset to an invalid key.

Definition at line 49 of file ResourceKey.h.

                 {
        fKey.reset(kMetaDataCnt);
        fKey[kHash_MetaDataIdx] = 0;
        fKey[kDomainAndSize_MetaDataIdx] = kInvalidDomain;
    }

size()

size_t skgpu::ResourceKey::size ( ) const

inline

Definition at line 42 of file ResourceKey.h.

                        {
        this->validate();
        SkASSERT(this->isValid());
        return this->internalSize();
    }

Friends And Related Symbol Documentation

::TestResource

friend class ::TestResource

friend

Definition at line 169 of file ResourceKey.h.

Member Data Documentation

kInvalidDomain

const uint32_t skgpu::ResourceKey::kInvalidDomain = 0

staticprotected

Definition at line 95 of file ResourceKey.h.

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

• third_party/skia/src/gpu/ResourceKey.h