| /* |
| * 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 "SkMetaData.h" |
| |
| #include "SkMalloc.h" |
| #include "SkRefCnt.h" |
| |
| #if defined(STARBOARD) |
| #include "starboard/client_porting/poem/string_poem.h" |
| #endif // defined(STARBOARD) |
| |
| 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); |
| } |