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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef XFA_FGAS_CRT_FGAS_UTILS_H_
#define XFA_FGAS_CRT_FGAS_UTILS_H_
#include "core/fxcrt/fx_coordinates.h"
class FX_BASEARRAYDATA;
class CFX_BaseArray {
protected:
CFX_BaseArray(int32_t iGrowSize, int32_t iBlockSize);
~CFX_BaseArray();
int32_t GetSize() const;
int32_t GetBlockSize() const;
uint8_t* AddSpaceTo(int32_t index);
uint8_t* GetAt(int32_t index) const;
uint8_t* GetBuffer() const;
int32_t Append(const CFX_BaseArray& src, int32_t iStart, int32_t iCount);
int32_t Copy(const CFX_BaseArray& src, int32_t iStart, int32_t iCount);
int32_t RemoveLast(int32_t iCount);
void RemoveAll(bool bLeaveMemory);
FX_BASEARRAYDATA* m_pData;
};
template <class baseType>
class CFX_BaseArrayTemplate : public CFX_BaseArray {
public:
explicit CFX_BaseArrayTemplate(int32_t iGrowSize)
: CFX_BaseArray(iGrowSize, sizeof(baseType)) {}
CFX_BaseArrayTemplate(int32_t iGrowSize, int32_t iBlockSize)
: CFX_BaseArray(iGrowSize, iBlockSize) {}
int32_t GetSize() const { return CFX_BaseArray::GetSize(); }
int32_t GetBlockSize() const { return CFX_BaseArray::GetBlockSize(); }
baseType* AddSpace() {
return (baseType*)CFX_BaseArray::AddSpaceTo(CFX_BaseArray::GetSize());
}
int32_t Add(const baseType& element) {
int32_t index = CFX_BaseArray::GetSize();
*(baseType*)CFX_BaseArray::AddSpaceTo(index) = element;
return index;
}
baseType* GetBuffer() const { return (baseType*)CFX_BaseArray::GetBuffer(); }
baseType& GetAt(int32_t index) const {
return *(baseType*)CFX_BaseArray::GetAt(index);
}
baseType* GetPtrAt(int32_t index) const {
return (baseType*)CFX_BaseArray::GetAt(index);
}
void SetAt(int32_t index, const baseType& element) {
*(baseType*)CFX_BaseArray::GetAt(index) = element;
}
void SetAtGrow(int32_t index, const baseType& element) {
*(baseType*)CFX_BaseArray::AddSpaceTo(index) = element;
}
int32_t Append(const CFX_BaseArrayTemplate& src,
int32_t iStart,
int32_t iCount) {
return CFX_BaseArray::Append(src, iStart, iCount);
}
int32_t Copy(const CFX_BaseArrayTemplate& src,
int32_t iStart,
int32_t iCount) {
return CFX_BaseArray::Copy(src, iStart, iCount);
}
int32_t RemoveLast(int32_t iCount) {
return CFX_BaseArray::RemoveLast(iCount);
}
void RemoveAll(bool bLeaveMemory) { CFX_BaseArray::RemoveAll(bLeaveMemory); }
};
class CFX_BaseMassArrayImp {
public:
CFX_BaseMassArrayImp(int32_t iChunkSize, int32_t iBlockSize);
~CFX_BaseMassArrayImp();
uint8_t* AddSpace() { return AddSpaceTo(m_iBlockCount); }
uint8_t* AddSpaceTo(int32_t index);
uint8_t* GetAt(int32_t index) const;
int32_t Append(const CFX_BaseMassArrayImp& src,
int32_t iStart,
int32_t iCount);
int32_t Copy(const CFX_BaseMassArrayImp& src, int32_t iStart, int32_t iCount);
int32_t RemoveLast(int32_t iCount);
void RemoveAll(bool bLeaveMemory);
int32_t m_iChunkSize;
int32_t m_iBlockSize;
int32_t m_iChunkCount;
int32_t m_iBlockCount;
CFX_ArrayTemplate<void*>* m_pData;
protected:
void Append(int32_t iDstStart,
const CFX_BaseMassArrayImp& src,
int32_t iSrcStart,
int32_t iSrcCount);
};
class CFX_BaseDiscreteArray {
protected:
CFX_BaseDiscreteArray(int32_t iChunkSize, int32_t iBlockSize);
~CFX_BaseDiscreteArray();
uint8_t* AddSpaceTo(int32_t index);
uint8_t* GetAt(int32_t index) const;
void RemoveAll();
void* m_pData;
};
template <class baseType>
class CFX_DiscreteArrayTemplate : public CFX_BaseDiscreteArray {
public:
explicit CFX_DiscreteArrayTemplate(int32_t iChunkSize)
: CFX_BaseDiscreteArray(iChunkSize, sizeof(baseType)) {}
baseType& GetAt(int32_t index, const baseType& defValue) const {
baseType* p = (baseType*)CFX_BaseDiscreteArray::GetAt(index);
return p ? *p : (baseType&)defValue;
}
baseType* GetPtrAt(int32_t index) const {
return (baseType*)CFX_BaseDiscreteArray::GetAt(index);
}
void SetAtGrow(int32_t index, const baseType& element) {
*(baseType*)CFX_BaseDiscreteArray::AddSpaceTo(index) = element;
}
void RemoveAll() { CFX_BaseDiscreteArray::RemoveAll(); }
};
class CFX_BaseStack {
protected:
CFX_BaseStack(int32_t iChunkSize, int32_t iBlockSize);
~CFX_BaseStack();
uint8_t* Push();
void Pop();
uint8_t* GetTopElement() const;
int32_t GetSize() const;
uint8_t* GetAt(int32_t index) const;
void RemoveAll(bool bLeaveMemory);
CFX_BaseMassArrayImp* m_pData;
};
template <class baseType>
class CFX_StackTemplate : public CFX_BaseStack {
public:
explicit CFX_StackTemplate(int32_t iChunkSize)
: CFX_BaseStack(iChunkSize, sizeof(baseType)) {}
int32_t Push(const baseType& element) {
int32_t index = CFX_BaseStack::GetSize();
*(baseType*)CFX_BaseStack::Push() = element;
return index;
}
void Pop() { CFX_BaseStack::Pop(); }
baseType* GetTopElement() const {
return (baseType*)CFX_BaseStack::GetTopElement();
}
int32_t GetSize() const { return CFX_BaseStack::GetSize(); }
baseType* GetAt(int32_t index) const {
return (baseType*)CFX_BaseStack::GetAt(index);
}
void RemoveAll(bool bLeaveMemory) { CFX_BaseStack::RemoveAll(bLeaveMemory); }
};
template <class baseType>
class CFX_ObjectStackTemplate : public CFX_BaseStack {
public:
explicit CFX_ObjectStackTemplate(int32_t iChunkSize)
: CFX_BaseStack(iChunkSize, sizeof(baseType)) {}
~CFX_ObjectStackTemplate() { RemoveAll(false); }
int32_t Push(const baseType& element) {
int32_t index = CFX_BaseStack::GetSize();
baseType* p = (baseType*)CFX_BaseStack::Push();
new ((void*)p) baseType(element);
return index;
}
void Pop() {
baseType* p = (baseType*)CFX_BaseStack::GetTopElement();
if (p) {
p->~baseType();
}
CFX_BaseStack::Pop();
}
baseType* GetTopElement() const {
return (baseType*)CFX_BaseStack::GetTopElement();
}
int32_t GetSize() const { return CFX_BaseStack::GetSize(); }
baseType* GetAt(int32_t index) const {
return (baseType*)CFX_BaseStack::GetAt(index);
}
void RemoveAll(bool bLeaveMemory) {
int32_t iSize = CFX_BaseStack::GetSize();
for (int32_t i = 0; i < iSize; i++) {
((baseType*)CFX_BaseStack::GetAt(i))->~baseType();
}
CFX_BaseStack::RemoveAll(bLeaveMemory);
}
int32_t Copy(const CFX_ObjectStackTemplate& src,
int32_t iStart,
int32_t iCount) {
if (iCount == 0) {
return CFX_BaseStack::GetSize();
}
int32_t iSize = src.GetSize();
ASSERT(iStart > -1 && iStart < iSize);
if (iCount < 0) {
iCount = iSize;
}
int32_t iEnd = iStart + iCount;
if (iEnd > iSize) {
iEnd = iSize;
}
RemoveAll(true);
for (int32_t i = iStart; i < iEnd; i++) {
Push(*src.GetAt(i));
}
return CFX_BaseStack::GetSize();
}
};
#endif // XFA_FGAS_CRT_FGAS_UTILS_H_
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