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authordsinclair <dsinclair@chromium.org>2016-09-29 13:59:29 -0700
committerCommit bot <commit-bot@chromium.org>2016-09-29 13:59:29 -0700
commita52ab741019342fbca0468e43a01deb44fa5f1bd (patch)
tree9b1deef3b8deb23d65bf56348b220fe59dcd3169 /core/fxcrt/fx_basic.h
parent8a4e286e686c3027f382afb07d3ddcec4610fdd9 (diff)
downloadpdfium-a52ab741019342fbca0468e43a01deb44fa5f1bd.tar.xz
Move core/fxcrt/include to core/fxcrt
BUG=pdfium:611 Review-Url: https://codereview.chromium.org/2382723003
Diffstat (limited to 'core/fxcrt/fx_basic.h')
-rw-r--r--core/fxcrt/fx_basic.h860
1 files changed, 860 insertions, 0 deletions
diff --git a/core/fxcrt/fx_basic.h b/core/fxcrt/fx_basic.h
new file mode 100644
index 0000000000..4cf69f896b
--- /dev/null
+++ b/core/fxcrt/fx_basic.h
@@ -0,0 +1,860 @@
+// 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 CORE_FXCRT_FX_BASIC_H_
+#define CORE_FXCRT_FX_BASIC_H_
+
+#include <algorithm>
+#include <memory>
+
+#include "core/fxcrt/fx_memory.h"
+#include "core/fxcrt/fx_stream.h"
+#include "core/fxcrt/fx_string.h"
+#include "core/fxcrt/fx_system.h"
+
+class CFX_BinaryBuf {
+ public:
+ CFX_BinaryBuf();
+ explicit CFX_BinaryBuf(FX_STRSIZE size);
+ ~CFX_BinaryBuf();
+
+ uint8_t* GetBuffer() const { return m_pBuffer.get(); }
+ FX_STRSIZE GetSize() const { return m_DataSize; }
+
+ void Clear();
+ void EstimateSize(FX_STRSIZE size, FX_STRSIZE alloc_step = 0);
+ void AppendBlock(const void* pBuf, FX_STRSIZE size);
+ void AppendString(const CFX_ByteString& str) {
+ AppendBlock(str.c_str(), str.GetLength());
+ }
+
+ void AppendByte(uint8_t byte) {
+ ExpandBuf(1);
+ m_pBuffer.get()[m_DataSize++] = byte;
+ }
+
+ void InsertBlock(FX_STRSIZE pos, const void* pBuf, FX_STRSIZE size);
+ void Delete(int start_index, int count);
+
+ // Takes ownership of |pBuf|.
+ void AttachData(uint8_t* pBuf, FX_STRSIZE size);
+
+ // Releases ownership of |m_pBuffer| and returns it.
+ uint8_t* DetachBuffer();
+
+ protected:
+ void ExpandBuf(FX_STRSIZE size);
+
+ FX_STRSIZE m_AllocStep;
+ FX_STRSIZE m_AllocSize;
+ FX_STRSIZE m_DataSize;
+ std::unique_ptr<uint8_t, FxFreeDeleter> m_pBuffer;
+};
+
+class CFX_ByteTextBuf : public CFX_BinaryBuf {
+ public:
+ FX_STRSIZE GetLength() const { return m_DataSize; }
+ CFX_ByteString MakeString() const {
+ return CFX_ByteString(m_pBuffer.get(), m_DataSize);
+ }
+ CFX_ByteStringC AsStringC() const {
+ return CFX_ByteStringC(m_pBuffer.get(), m_DataSize);
+ }
+
+ void AppendChar(int ch) { AppendByte(static_cast<uint8_t>(ch)); }
+ CFX_ByteTextBuf& operator<<(int i);
+ CFX_ByteTextBuf& operator<<(uint32_t i);
+ CFX_ByteTextBuf& operator<<(double f);
+ CFX_ByteTextBuf& operator<<(const FX_CHAR* pStr) {
+ return *this << CFX_ByteStringC(pStr);
+ }
+ CFX_ByteTextBuf& operator<<(const CFX_ByteString& str) {
+ return *this << str.AsStringC();
+ }
+ CFX_ByteTextBuf& operator<<(const CFX_ByteStringC& lpsz);
+ CFX_ByteTextBuf& operator<<(const CFX_ByteTextBuf& buf);
+};
+
+class CFX_WideTextBuf : public CFX_BinaryBuf {
+ public:
+ void AppendChar(FX_WCHAR wch);
+ FX_STRSIZE GetLength() const { return m_DataSize / sizeof(FX_WCHAR); }
+ FX_WCHAR* GetBuffer() const {
+ return reinterpret_cast<FX_WCHAR*>(m_pBuffer.get());
+ }
+
+ CFX_WideStringC AsStringC() const {
+ return CFX_WideStringC(reinterpret_cast<const FX_WCHAR*>(m_pBuffer.get()),
+ m_DataSize / sizeof(FX_WCHAR));
+ }
+ CFX_WideString MakeString() const {
+ return CFX_WideString(reinterpret_cast<const FX_WCHAR*>(m_pBuffer.get()),
+ m_DataSize / sizeof(FX_WCHAR));
+ }
+
+ void Delete(int start_index, int count) {
+ CFX_BinaryBuf::Delete(start_index * sizeof(FX_WCHAR),
+ count * sizeof(FX_WCHAR));
+ }
+
+ CFX_WideTextBuf& operator<<(int i);
+ CFX_WideTextBuf& operator<<(double f);
+ CFX_WideTextBuf& operator<<(const FX_WCHAR* lpsz);
+ CFX_WideTextBuf& operator<<(const CFX_WideStringC& str);
+ CFX_WideTextBuf& operator<<(const CFX_WideString& str);
+ CFX_WideTextBuf& operator<<(const CFX_WideTextBuf& buf);
+};
+
+class CFX_FileBufferArchive {
+ public:
+ CFX_FileBufferArchive();
+ ~CFX_FileBufferArchive();
+
+ void Clear();
+ bool Flush();
+ int32_t AppendBlock(const void* pBuf, size_t size);
+ int32_t AppendByte(uint8_t byte);
+ int32_t AppendDWord(uint32_t i);
+ int32_t AppendString(const CFX_ByteStringC& lpsz);
+
+ // |pFile| must outlive the CFX_FileBufferArchive.
+ void AttachFile(IFX_StreamWrite* pFile);
+
+ private:
+ static const size_t kBufSize = 32768;
+
+ size_t m_Length;
+ std::unique_ptr<uint8_t, FxFreeDeleter> m_pBuffer;
+ IFX_StreamWrite* m_pFile;
+};
+
+class CFX_CharMap {
+ public:
+ static CFX_ByteString GetByteString(uint16_t codepage,
+ const CFX_WideStringC& wstr);
+
+ static CFX_WideString GetWideString(uint16_t codepage,
+ const CFX_ByteStringC& bstr);
+
+ CFX_CharMap() = delete;
+};
+
+class CFX_UTF8Decoder {
+ public:
+ CFX_UTF8Decoder() { m_PendingBytes = 0; }
+
+ void Clear();
+
+ void Input(uint8_t byte);
+
+ void AppendChar(uint32_t ch);
+
+ void ClearStatus() { m_PendingBytes = 0; }
+
+ CFX_WideStringC GetResult() const { return m_Buffer.AsStringC(); }
+
+ protected:
+ int m_PendingBytes;
+
+ uint32_t m_PendingChar;
+
+ CFX_WideTextBuf m_Buffer;
+};
+
+class CFX_UTF8Encoder {
+ public:
+ CFX_UTF8Encoder() {}
+
+ void Input(FX_WCHAR unicode);
+ void AppendStr(const CFX_ByteStringC& str) { m_Buffer << str; }
+ CFX_ByteStringC GetResult() const { return m_Buffer.AsStringC(); }
+
+ protected:
+ CFX_ByteTextBuf m_Buffer;
+};
+
+class CFX_BasicArray {
+ protected:
+ explicit CFX_BasicArray(int unit_size);
+ CFX_BasicArray(const CFX_BasicArray&) = delete;
+ ~CFX_BasicArray();
+
+ FX_BOOL SetSize(int nNewSize);
+ FX_BOOL Append(const CFX_BasicArray& src);
+ FX_BOOL Copy(const CFX_BasicArray& src);
+ uint8_t* InsertSpaceAt(int nIndex, int nCount);
+ FX_BOOL RemoveAt(int nIndex, int nCount);
+ FX_BOOL InsertAt(int nStartIndex, const CFX_BasicArray* pNewArray);
+ const void* GetDataPtr(int index) const;
+
+ protected:
+ uint8_t* m_pData;
+ int m_nSize;
+ int m_nMaxSize;
+ int m_nUnitSize;
+};
+
+template <class TYPE>
+class CFX_ArrayTemplate : public CFX_BasicArray {
+ public:
+ CFX_ArrayTemplate() : CFX_BasicArray(sizeof(TYPE)) {}
+
+ int GetSize() const { return m_nSize; }
+
+ int GetUpperBound() const { return m_nSize - 1; }
+
+ FX_BOOL SetSize(int nNewSize) { return CFX_BasicArray::SetSize(nNewSize); }
+
+ void RemoveAll() { SetSize(0); }
+
+ const TYPE GetAt(int nIndex) const {
+ if (nIndex < 0 || nIndex >= m_nSize) {
+ PDFIUM_IMMEDIATE_CRASH();
+ }
+ return ((const TYPE*)m_pData)[nIndex];
+ }
+
+ FX_BOOL SetAt(int nIndex, TYPE newElement) {
+ if (nIndex < 0 || nIndex >= m_nSize) {
+ return FALSE;
+ }
+ ((TYPE*)m_pData)[nIndex] = newElement;
+ return TRUE;
+ }
+
+ TYPE& ElementAt(int nIndex) {
+ if (nIndex < 0 || nIndex >= m_nSize) {
+ PDFIUM_IMMEDIATE_CRASH();
+ }
+ return ((TYPE*)m_pData)[nIndex];
+ }
+
+ const TYPE* GetData() const { return (const TYPE*)m_pData; }
+
+ TYPE* GetData() { return (TYPE*)m_pData; }
+
+ FX_BOOL SetAtGrow(int nIndex, TYPE newElement) {
+ if (nIndex < 0)
+ return FALSE;
+
+ if (nIndex >= m_nSize && !SetSize(nIndex + 1))
+ return FALSE;
+
+ ((TYPE*)m_pData)[nIndex] = newElement;
+ return TRUE;
+ }
+
+ FX_BOOL Add(TYPE newElement) {
+ if (m_nSize < m_nMaxSize) {
+ m_nSize++;
+ } else if (!SetSize(m_nSize + 1)) {
+ return FALSE;
+ }
+ ((TYPE*)m_pData)[m_nSize - 1] = newElement;
+ return TRUE;
+ }
+
+ FX_BOOL Append(const CFX_ArrayTemplate& src) {
+ return CFX_BasicArray::Append(src);
+ }
+
+ FX_BOOL Copy(const CFX_ArrayTemplate& src) {
+ return CFX_BasicArray::Copy(src);
+ }
+
+ TYPE* GetDataPtr(int index) {
+ return (TYPE*)CFX_BasicArray::GetDataPtr(index);
+ }
+
+ TYPE* AddSpace() { return (TYPE*)CFX_BasicArray::InsertSpaceAt(m_nSize, 1); }
+
+ TYPE* InsertSpaceAt(int nIndex, int nCount) {
+ return (TYPE*)CFX_BasicArray::InsertSpaceAt(nIndex, nCount);
+ }
+
+ const TYPE operator[](int nIndex) const {
+ if (nIndex < 0 || nIndex >= m_nSize) {
+ *(volatile char*)0 = '\0';
+ }
+ return ((const TYPE*)m_pData)[nIndex];
+ }
+
+ TYPE& operator[](int nIndex) {
+ if (nIndex < 0 || nIndex >= m_nSize) {
+ *(volatile char*)0 = '\0';
+ }
+ return ((TYPE*)m_pData)[nIndex];
+ }
+
+ FX_BOOL InsertAt(int nIndex, TYPE newElement, int nCount = 1) {
+ if (!InsertSpaceAt(nIndex, nCount)) {
+ return FALSE;
+ }
+ while (nCount--) {
+ ((TYPE*)m_pData)[nIndex++] = newElement;
+ }
+ return TRUE;
+ }
+
+ FX_BOOL RemoveAt(int nIndex, int nCount = 1) {
+ return CFX_BasicArray::RemoveAt(nIndex, nCount);
+ }
+
+ FX_BOOL InsertAt(int nStartIndex, const CFX_BasicArray* pNewArray) {
+ return CFX_BasicArray::InsertAt(nStartIndex, pNewArray);
+ }
+
+ int Find(TYPE data, int iStart = 0) const {
+ if (iStart < 0) {
+ return -1;
+ }
+ for (; iStart < (int)m_nSize; iStart++)
+ if (((TYPE*)m_pData)[iStart] == data) {
+ return iStart;
+ }
+ return -1;
+ }
+};
+
+#ifdef PDF_ENABLE_XFA
+typedef CFX_ArrayTemplate<CFX_WideStringC> CFX_WideStringCArray;
+typedef CFX_ArrayTemplate<FX_FLOAT> CFX_FloatArray;
+typedef CFX_ArrayTemplate<uint8_t> CFX_ByteArray;
+typedef CFX_ArrayTemplate<int32_t> CFX_Int32Array;
+
+template <class ObjectClass>
+class CFX_ObjectArray : public CFX_BasicArray {
+ public:
+ CFX_ObjectArray() : CFX_BasicArray(sizeof(ObjectClass)) {}
+
+ ~CFX_ObjectArray() { RemoveAll(); }
+
+ void Add(const ObjectClass& data) {
+ new ((void*)InsertSpaceAt(m_nSize, 1)) ObjectClass(data);
+ }
+
+ ObjectClass& Add() {
+ return *(ObjectClass*)new ((void*)InsertSpaceAt(m_nSize, 1)) ObjectClass();
+ }
+
+ void* AddSpace() { return InsertSpaceAt(m_nSize, 1); }
+
+ int32_t Append(const CFX_ObjectArray& src,
+ int32_t nStart = 0,
+ int32_t nCount = -1) {
+ if (nCount == 0) {
+ return 0;
+ }
+ int32_t nSize = src.GetSize();
+ if (!nSize) {
+ return 0;
+ }
+ ASSERT(nStart > -1 && nStart < nSize);
+ if (nCount < 0) {
+ nCount = nSize;
+ }
+ if (nStart + nCount > nSize) {
+ nCount = nSize - nStart;
+ }
+ if (nCount < 1) {
+ return 0;
+ }
+ nSize = m_nSize;
+ InsertSpaceAt(m_nSize, nCount);
+ ObjectClass* pStartObj = (ObjectClass*)GetDataPtr(nSize);
+ nSize = nStart + nCount;
+ for (int32_t i = nStart; i < nSize; i++, pStartObj++) {
+ new ((void*)pStartObj) ObjectClass(src[i]);
+ }
+ return nCount;
+ }
+
+ int32_t Copy(const CFX_ObjectArray& src,
+ int32_t nStart = 0,
+ int32_t nCount = -1) {
+ if (nCount == 0) {
+ return 0;
+ }
+ int32_t nSize = src.GetSize();
+ if (!nSize) {
+ return 0;
+ }
+ ASSERT(nStart > -1 && nStart < nSize);
+ if (nCount < 0) {
+ nCount = nSize;
+ }
+ if (nStart + nCount > nSize) {
+ nCount = nSize - nStart;
+ }
+ if (nCount < 1) {
+ return 0;
+ }
+ RemoveAll();
+ SetSize(nCount);
+ ObjectClass* pStartObj = (ObjectClass*)m_pData;
+ nSize = nStart + nCount;
+ for (int32_t i = nStart; i < nSize; i++, pStartObj++) {
+ new ((void*)pStartObj) ObjectClass(src[i]);
+ }
+ return nCount;
+ }
+
+ int GetSize() const { return m_nSize; }
+
+ ObjectClass& operator[](int index) const {
+ ASSERT(index < m_nSize);
+ return *(ObjectClass*)CFX_BasicArray::GetDataPtr(index);
+ }
+
+ ObjectClass* GetDataPtr(int index) {
+ return (ObjectClass*)CFX_BasicArray::GetDataPtr(index);
+ }
+
+ void RemoveAt(int index) {
+ ASSERT(index < m_nSize);
+ ((ObjectClass*)GetDataPtr(index))->~ObjectClass();
+ CFX_BasicArray::RemoveAt(index, 1);
+ }
+
+ void RemoveAll() {
+ for (int i = 0; i < m_nSize; i++) {
+ ((ObjectClass*)GetDataPtr(i))->~ObjectClass();
+ }
+ CFX_BasicArray::SetSize(0);
+ }
+};
+typedef CFX_ObjectArray<CFX_ByteString> CFX_ByteStringArray;
+typedef CFX_ObjectArray<CFX_WideString> CFX_WideStringArray;
+#endif // PDF_ENABLE_XFA
+
+template <class DataType, int FixedSize>
+class CFX_FixedBufGrow {
+ public:
+ explicit CFX_FixedBufGrow(int data_size) {
+ if (data_size > FixedSize) {
+ m_pGrowData.reset(FX_Alloc(DataType, data_size));
+ return;
+ }
+ FXSYS_memset(m_FixedData, 0, sizeof(DataType) * FixedSize);
+ }
+ operator DataType*() { return m_pGrowData ? m_pGrowData.get() : m_FixedData; }
+
+ private:
+ DataType m_FixedData[FixedSize];
+ std::unique_ptr<DataType, FxFreeDeleter> m_pGrowData;
+};
+
+#ifdef PDF_ENABLE_XFA
+class CFX_MapPtrToPtr {
+ protected:
+ struct CAssoc {
+ CAssoc* pNext;
+ void* key;
+ void* value;
+ };
+
+ public:
+ CFX_MapPtrToPtr(int nBlockSize = 10);
+ ~CFX_MapPtrToPtr();
+
+ int GetCount() const { return m_nCount; }
+ bool IsEmpty() const { return m_nCount == 0; }
+
+ FX_BOOL Lookup(void* key, void*& rValue) const;
+
+ void* GetValueAt(void* key) const;
+
+ void*& operator[](void* key);
+
+ void SetAt(void* key, void* newValue) { (*this)[key] = newValue; }
+
+ FX_BOOL RemoveKey(void* key);
+
+ void RemoveAll();
+
+ FX_POSITION GetStartPosition() const {
+ return m_nCount == 0 ? nullptr : (FX_POSITION)-1;
+ }
+
+ void GetNextAssoc(FX_POSITION& rNextPosition,
+ void*& rKey,
+ void*& rValue) const;
+
+ uint32_t GetHashTableSize() const { return m_nHashTableSize; }
+
+ void InitHashTable(uint32_t hashSize, FX_BOOL bAllocNow = TRUE);
+
+ protected:
+ CAssoc** m_pHashTable;
+
+ uint32_t m_nHashTableSize;
+
+ int m_nCount;
+
+ CAssoc* m_pFreeList;
+
+ struct CFX_Plex* m_pBlocks;
+
+ int m_nBlockSize;
+
+ uint32_t HashKey(void* key) const;
+
+ CAssoc* NewAssoc();
+
+ void FreeAssoc(CAssoc* pAssoc);
+
+ CAssoc* GetAssocAt(void* key, uint32_t& hash) const;
+};
+
+template <class KeyType, class ValueType>
+class CFX_MapPtrTemplate : public CFX_MapPtrToPtr {
+ public:
+ CFX_MapPtrTemplate() : CFX_MapPtrToPtr(10) {}
+
+ FX_BOOL Lookup(KeyType key, ValueType& rValue) const {
+ void* pValue = nullptr;
+ if (!CFX_MapPtrToPtr::Lookup((void*)(uintptr_t)key, pValue)) {
+ return FALSE;
+ }
+ rValue = (ValueType)(uintptr_t)pValue;
+ return TRUE;
+ }
+
+ ValueType& operator[](KeyType key) {
+ return (ValueType&)CFX_MapPtrToPtr::operator[]((void*)(uintptr_t)key);
+ }
+
+ void SetAt(KeyType key, ValueType newValue) {
+ CFX_MapPtrToPtr::SetAt((void*)(uintptr_t)key, (void*)(uintptr_t)newValue);
+ }
+
+ FX_BOOL RemoveKey(KeyType key) {
+ return CFX_MapPtrToPtr::RemoveKey((void*)(uintptr_t)key);
+ }
+
+ void GetNextAssoc(FX_POSITION& rNextPosition,
+ KeyType& rKey,
+ ValueType& rValue) const {
+ void* pKey = nullptr;
+ void* pValue = nullptr;
+ CFX_MapPtrToPtr::GetNextAssoc(rNextPosition, pKey, pValue);
+ rKey = (KeyType)(uintptr_t)pKey;
+ rValue = (ValueType)(uintptr_t)pValue;
+ }
+};
+#endif // PDF_ENABLE_XFA
+
+class CFX_PtrList {
+ protected:
+ struct CNode {
+ CNode* pNext;
+ CNode* pPrev;
+ void* data;
+ };
+
+ public:
+ CFX_PtrList(int nBlockSize = 10);
+
+ FX_POSITION GetHeadPosition() const { return (FX_POSITION)m_pNodeHead; }
+ FX_POSITION GetTailPosition() const { return (FX_POSITION)m_pNodeTail; }
+
+ void* GetNext(FX_POSITION& rPosition) const {
+ CNode* pNode = (CNode*)rPosition;
+ rPosition = (FX_POSITION)pNode->pNext;
+ return pNode->data;
+ }
+
+ void* GetPrev(FX_POSITION& rPosition) const {
+ CNode* pNode = (CNode*)rPosition;
+ rPosition = (FX_POSITION)pNode->pPrev;
+ return pNode->data;
+ }
+
+ FX_POSITION GetNextPosition(FX_POSITION pos) const {
+ return ((CNode*)pos)->pNext;
+ }
+
+ FX_POSITION GetPrevPosition(FX_POSITION pos) const {
+ return ((CNode*)pos)->pPrev;
+ }
+
+ void* GetAt(FX_POSITION rPosition) const {
+ CNode* pNode = (CNode*)rPosition;
+ return pNode->data;
+ }
+
+ int GetCount() const { return m_nCount; }
+ FX_POSITION AddTail(void* newElement);
+ FX_POSITION AddHead(void* newElement);
+
+ void SetAt(FX_POSITION pos, void* newElement) {
+ CNode* pNode = (CNode*)pos;
+ pNode->data = newElement;
+ }
+ FX_POSITION InsertAfter(FX_POSITION pos, void* newElement);
+
+ FX_POSITION Find(void* searchValue, FX_POSITION startAfter = nullptr) const;
+ FX_POSITION FindIndex(int index) const;
+
+ void RemoveAt(FX_POSITION pos);
+ void RemoveAll();
+
+ protected:
+ CNode* m_pNodeHead;
+ CNode* m_pNodeTail;
+ int m_nCount;
+ CNode* m_pNodeFree;
+ struct CFX_Plex* m_pBlocks;
+ int m_nBlockSize;
+
+ CNode* NewNode(CNode* pPrev, CNode* pNext);
+ void FreeNode(CNode* pNode);
+
+ public:
+ ~CFX_PtrList();
+};
+
+#ifdef PDF_ENABLE_XFA
+typedef void (*PD_CALLBACK_FREEDATA)(void* pData);
+#endif // PDF_ENABLE_XFA
+
+class CFX_BitStream {
+ public:
+ void Init(const uint8_t* pData, uint32_t dwSize);
+
+ uint32_t GetBits(uint32_t nBits);
+
+ void ByteAlign();
+
+ FX_BOOL IsEOF() { return m_BitPos >= m_BitSize; }
+
+ void SkipBits(uint32_t nBits) { m_BitPos += nBits; }
+
+ void Rewind() { m_BitPos = 0; }
+
+ uint32_t GetPos() const { return m_BitPos; }
+
+ uint32_t BitsRemaining() const {
+ return m_BitSize >= m_BitPos ? m_BitSize - m_BitPos : 0;
+ }
+
+ protected:
+ uint32_t m_BitPos;
+
+ uint32_t m_BitSize;
+
+ const uint8_t* m_pData;
+};
+
+class IFX_Pause {
+ public:
+ virtual ~IFX_Pause() {}
+ virtual FX_BOOL NeedToPauseNow() = 0;
+};
+
+template <typename T>
+class CFX_AutoRestorer {
+ public:
+ explicit CFX_AutoRestorer(T* location)
+ : m_Location(location), m_OldValue(*location) {}
+ ~CFX_AutoRestorer() { *m_Location = m_OldValue; }
+
+ private:
+ T* const m_Location;
+ const T m_OldValue;
+};
+
+#define FX_DATALIST_LENGTH 1024
+template <size_t unit>
+class CFX_SortListArray {
+ protected:
+ struct DataList {
+ int32_t start;
+
+ int32_t count;
+ uint8_t* data;
+ };
+
+ public:
+ CFX_SortListArray() : m_CurList(0) {}
+
+ ~CFX_SortListArray() { Clear(); }
+
+ void Clear() {
+ for (int32_t i = m_DataLists.GetUpperBound(); i >= 0; i--) {
+ DataList list = m_DataLists.ElementAt(i);
+ FX_Free(list.data);
+ }
+ m_DataLists.RemoveAll();
+ m_CurList = 0;
+ }
+
+ void Append(int32_t nStart, int32_t nCount) {
+ if (nStart < 0) {
+ return;
+ }
+ while (nCount > 0) {
+ int32_t temp_count = std::min(nCount, FX_DATALIST_LENGTH);
+ DataList list;
+ list.data = FX_Alloc2D(uint8_t, temp_count, unit);
+ list.start = nStart;
+ list.count = temp_count;
+ Append(list);
+ nCount -= temp_count;
+ nStart += temp_count;
+ }
+ }
+
+ uint8_t* GetAt(int32_t nIndex) {
+ if (nIndex < 0) {
+ return nullptr;
+ }
+ if (m_CurList < 0 || m_CurList >= m_DataLists.GetSize()) {
+ return nullptr;
+ }
+ DataList* pCurList = m_DataLists.GetDataPtr(m_CurList);
+ if (!pCurList || nIndex < pCurList->start ||
+ nIndex >= pCurList->start + pCurList->count) {
+ pCurList = nullptr;
+ int32_t iStart = 0;
+ int32_t iEnd = m_DataLists.GetUpperBound();
+ int32_t iMid = 0;
+ while (iStart <= iEnd) {
+ iMid = (iStart + iEnd) / 2;
+ DataList* list = m_DataLists.GetDataPtr(iMid);
+ if (nIndex < list->start) {
+ iEnd = iMid - 1;
+ } else if (nIndex >= list->start + list->count) {
+ iStart = iMid + 1;
+ } else {
+ pCurList = list;
+ m_CurList = iMid;
+ break;
+ }
+ }
+ }
+ return pCurList ? pCurList->data + (nIndex - pCurList->start) * unit
+ : nullptr;
+ }
+
+ protected:
+ void Append(const DataList& list) {
+ int32_t iStart = 0;
+ int32_t iEnd = m_DataLists.GetUpperBound();
+ int32_t iFind = 0;
+ while (iStart <= iEnd) {
+ int32_t iMid = (iStart + iEnd) / 2;
+ DataList* cur_list = m_DataLists.GetDataPtr(iMid);
+ if (list.start < cur_list->start + cur_list->count) {
+ iEnd = iMid - 1;
+ } else {
+ if (iMid == iEnd) {
+ iFind = iMid + 1;
+ break;
+ }
+ DataList* next_list = m_DataLists.GetDataPtr(iMid + 1);
+ if (list.start < next_list->start) {
+ iFind = iMid + 1;
+ break;
+ } else {
+ iStart = iMid + 1;
+ }
+ }
+ }
+ m_DataLists.InsertAt(iFind, list);
+ }
+ int32_t m_CurList;
+ CFX_ArrayTemplate<DataList> m_DataLists;
+};
+template <typename T1, typename T2>
+class CFX_ListArrayTemplate {
+ public:
+ void Clear() { m_Data.Clear(); }
+
+ void Add(int32_t nStart, int32_t nCount) { m_Data.Append(nStart, nCount); }
+
+ T2& operator[](int32_t nIndex) {
+ uint8_t* data = m_Data.GetAt(nIndex);
+ ASSERT(data);
+ return (T2&)(*(volatile T2*)data);
+ }
+
+ T2* GetPtrAt(int32_t nIndex) { return (T2*)m_Data.GetAt(nIndex); }
+
+ protected:
+ T1 m_Data;
+};
+typedef CFX_ListArrayTemplate<CFX_SortListArray<sizeof(FX_FILESIZE)>,
+ FX_FILESIZE>
+ CFX_FileSizeListArray;
+
+#ifdef PDF_ENABLE_XFA
+class IFX_Retainable {
+ public:
+ virtual uint32_t Retain() = 0;
+ virtual uint32_t Release() = 0;
+
+ protected:
+ virtual ~IFX_Retainable() {}
+};
+#define FX_IsOdd(a) ((a)&1)
+#endif // PDF_ENABLE_XFA
+
+class CFX_Vector_3by1 {
+ public:
+ CFX_Vector_3by1() : a(0.0f), b(0.0f), c(0.0f) {}
+
+ CFX_Vector_3by1(FX_FLOAT a1, FX_FLOAT b1, FX_FLOAT c1)
+ : a(a1), b(b1), c(c1) {}
+
+ FX_FLOAT a;
+ FX_FLOAT b;
+ FX_FLOAT c;
+};
+class CFX_Matrix_3by3 {
+ public:
+ CFX_Matrix_3by3()
+ : a(0.0f),
+ b(0.0f),
+ c(0.0f),
+ d(0.0f),
+ e(0.0f),
+ f(0.0f),
+ g(0.0f),
+ h(0.0f),
+ i(0.0f) {}
+
+ CFX_Matrix_3by3(FX_FLOAT a1,
+ FX_FLOAT b1,
+ FX_FLOAT c1,
+ FX_FLOAT d1,
+ FX_FLOAT e1,
+ FX_FLOAT f1,
+ FX_FLOAT g1,
+ FX_FLOAT h1,
+ FX_FLOAT i1)
+ : a(a1), b(b1), c(c1), d(d1), e(e1), f(f1), g(g1), h(h1), i(i1) {}
+
+ CFX_Matrix_3by3 Inverse();
+
+ CFX_Matrix_3by3 Multiply(const CFX_Matrix_3by3& m);
+
+ CFX_Vector_3by1 TransformVector(const CFX_Vector_3by1& v);
+
+ FX_FLOAT a;
+ FX_FLOAT b;
+ FX_FLOAT c;
+ FX_FLOAT d;
+ FX_FLOAT e;
+ FX_FLOAT f;
+ FX_FLOAT g;
+ FX_FLOAT h;
+ FX_FLOAT i;
+};
+
+uint32_t GetBits32(const uint8_t* pData, int bitpos, int nbits);
+
+#endif // CORE_FXCRT_FX_BASIC_H_