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- /*
- * Copyright 2006 The Android Open Source Project
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
- #include "tools/SkMetaData.h"
- #include "include/core/SkRefCnt.h"
- #include "include/private/SkMalloc.h"
- #include "include/private/SkTo.h"
- struct PtrPair {
- void* fPtr;
- SkMetaData::PtrProc fProc;
- };
- void* SkMetaData::RefCntProc(void* ptr, bool doRef) {
- SkASSERT(ptr);
- SkRefCnt* refcnt = reinterpret_cast<SkRefCnt*>(ptr);
- if (doRef) {
- refcnt->ref();
- } else {
- refcnt->unref();
- }
- return ptr;
- }
- SkMetaData::SkMetaData() : fRec(nullptr)
- {
- }
- SkMetaData::SkMetaData(const SkMetaData& src) : fRec(nullptr)
- {
- *this = src;
- }
- SkMetaData::~SkMetaData()
- {
- this->reset();
- }
- void SkMetaData::reset()
- {
- Rec* rec = fRec;
- while (rec) {
- if (kPtr_Type == rec->fType) {
- PtrPair* pair = (PtrPair*)rec->data();
- if (pair->fProc && pair->fPtr) {
- pair->fPtr = pair->fProc(pair->fPtr, false);
- }
- }
- Rec* next = rec->fNext;
- Rec::Free(rec);
- rec = next;
- }
- fRec = nullptr;
- }
- SkMetaData& SkMetaData::operator=(const SkMetaData& src)
- {
- this->reset();
- const Rec* rec = src.fRec;
- while (rec)
- {
- this->set(rec->name(), rec->data(), rec->fDataLen, (Type)rec->fType, rec->fDataCount);
- rec = rec->fNext;
- }
- return *this;
- }
- void SkMetaData::setS32(const char name[], int32_t value)
- {
- (void)this->set(name, &value, sizeof(int32_t), kS32_Type, 1);
- }
- void SkMetaData::setScalar(const char name[], SkScalar value)
- {
- (void)this->set(name, &value, sizeof(SkScalar), kScalar_Type, 1);
- }
- SkScalar* SkMetaData::setScalars(const char name[], int count, const SkScalar values[])
- {
- SkASSERT(count > 0);
- if (count > 0)
- return (SkScalar*)this->set(name, values, sizeof(SkScalar), kScalar_Type, count);
- return nullptr;
- }
- void SkMetaData::setString(const char name[], const char value[])
- {
- (void)this->set(name, value, sizeof(char), kString_Type, SkToInt(strlen(value) + 1));
- }
- void SkMetaData::setPtr(const char name[], void* ptr, PtrProc proc) {
- PtrPair pair = { ptr, proc };
- (void)this->set(name, &pair, sizeof(PtrPair), kPtr_Type, 1);
- }
- void SkMetaData::setBool(const char name[], bool value)
- {
- (void)this->set(name, &value, sizeof(bool), kBool_Type, 1);
- }
- void SkMetaData::setData(const char name[], const void* data, size_t byteCount) {
- (void)this->set(name, data, sizeof(char), kData_Type, SkToInt(byteCount));
- }
- void* SkMetaData::set(const char name[], const void* data, size_t dataSize, Type type, int count)
- {
- SkASSERT(name);
- SkASSERT(dataSize);
- SkASSERT(count > 0);
- (void)this->remove(name, type);
- size_t len = strlen(name);
- Rec* rec = Rec::Alloc(sizeof(Rec) + dataSize * count + len + 1);
- #ifndef SK_DEBUG
- rec->fType = SkToU8(type);
- #else
- rec->fType = type;
- #endif
- rec->fDataLen = SkToU8(dataSize);
- rec->fDataCount = SkToU16(count);
- if (data)
- memcpy(rec->data(), data, dataSize * count);
- memcpy(rec->name(), name, len + 1);
- if (kPtr_Type == type) {
- PtrPair* pair = (PtrPair*)rec->data();
- if (pair->fProc && pair->fPtr) {
- pair->fPtr = pair->fProc(pair->fPtr, true);
- }
- }
- rec->fNext = fRec;
- fRec = rec;
- return rec->data();
- }
- bool SkMetaData::findS32(const char name[], int32_t* value) const
- {
- const Rec* rec = this->find(name, kS32_Type);
- if (rec)
- {
- SkASSERT(rec->fDataCount == 1);
- if (value)
- *value = *(const int32_t*)rec->data();
- return true;
- }
- return false;
- }
- bool SkMetaData::findScalar(const char name[], SkScalar* value) const
- {
- const Rec* rec = this->find(name, kScalar_Type);
- if (rec)
- {
- SkASSERT(rec->fDataCount == 1);
- if (value)
- *value = *(const SkScalar*)rec->data();
- return true;
- }
- return false;
- }
- const SkScalar* SkMetaData::findScalars(const char name[], int* count, SkScalar values[]) const
- {
- const Rec* rec = this->find(name, kScalar_Type);
- if (rec)
- {
- if (count)
- *count = rec->fDataCount;
- if (values)
- memcpy(values, rec->data(), rec->fDataCount * rec->fDataLen);
- return (const SkScalar*)rec->data();
- }
- return nullptr;
- }
- bool SkMetaData::findPtr(const char name[], void** ptr, PtrProc* proc) const {
- const Rec* rec = this->find(name, kPtr_Type);
- if (rec) {
- SkASSERT(rec->fDataCount == 1);
- const PtrPair* pair = (const PtrPair*)rec->data();
- if (ptr) {
- *ptr = pair->fPtr;
- }
- if (proc) {
- *proc = pair->fProc;
- }
- return true;
- }
- return false;
- }
- const char* SkMetaData::findString(const char name[]) const
- {
- const Rec* rec = this->find(name, kString_Type);
- SkASSERT(rec == nullptr || rec->fDataLen == sizeof(char));
- return rec ? (const char*)rec->data() : nullptr;
- }
- bool SkMetaData::findBool(const char name[], bool* value) const
- {
- const Rec* rec = this->find(name, kBool_Type);
- if (rec)
- {
- SkASSERT(rec->fDataCount == 1);
- if (value)
- *value = *(const bool*)rec->data();
- return true;
- }
- return false;
- }
- const void* SkMetaData::findData(const char name[], size_t* length) const {
- const Rec* rec = this->find(name, kData_Type);
- if (rec) {
- SkASSERT(rec->fDataLen == sizeof(char));
- if (length) {
- *length = rec->fDataCount;
- }
- return rec->data();
- }
- return nullptr;
- }
- const SkMetaData::Rec* SkMetaData::find(const char name[], Type type) const
- {
- const Rec* rec = fRec;
- while (rec)
- {
- if (rec->fType == type && !strcmp(rec->name(), name))
- return rec;
- rec = rec->fNext;
- }
- return nullptr;
- }
- bool SkMetaData::remove(const char name[], Type type) {
- Rec* rec = fRec;
- Rec* prev = nullptr;
- while (rec) {
- Rec* next = rec->fNext;
- if (rec->fType == type && !strcmp(rec->name(), name)) {
- if (prev) {
- prev->fNext = next;
- } else {
- fRec = next;
- }
- if (kPtr_Type == type) {
- PtrPair* pair = (PtrPair*)rec->data();
- if (pair->fProc && pair->fPtr) {
- (void)pair->fProc(pair->fPtr, false);
- }
- }
- Rec::Free(rec);
- return true;
- }
- prev = rec;
- rec = next;
- }
- return false;
- }
- bool SkMetaData::removeS32(const char name[])
- {
- return this->remove(name, kS32_Type);
- }
- bool SkMetaData::removeScalar(const char name[])
- {
- return this->remove(name, kScalar_Type);
- }
- bool SkMetaData::removeString(const char name[])
- {
- return this->remove(name, kString_Type);
- }
- bool SkMetaData::removePtr(const char name[])
- {
- return this->remove(name, kPtr_Type);
- }
- bool SkMetaData::removeBool(const char name[])
- {
- return this->remove(name, kBool_Type);
- }
- bool SkMetaData::removeData(const char name[]) {
- return this->remove(name, kData_Type);
- }
- ///////////////////////////////////////////////////////////////////////////////
- SkMetaData::Iter::Iter(const SkMetaData& metadata) {
- fRec = metadata.fRec;
- }
- void SkMetaData::Iter::reset(const SkMetaData& metadata) {
- fRec = metadata.fRec;
- }
- const char* SkMetaData::Iter::next(SkMetaData::Type* t, int* count) {
- const char* name = nullptr;
- if (fRec) {
- if (t) {
- *t = (SkMetaData::Type)fRec->fType;
- }
- if (count) {
- *count = fRec->fDataCount;
- }
- name = fRec->name();
- fRec = fRec->fNext;
- }
- return name;
- }
- ///////////////////////////////////////////////////////////////////////////////
- SkMetaData::Rec* SkMetaData::Rec::Alloc(size_t size) {
- return (Rec*)sk_malloc_throw(size);
- }
- void SkMetaData::Rec::Free(Rec* rec) {
- sk_free(rec);
- }
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