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Unified Diff: core/src/fxcrt/extension.h

Issue 1265503005: clang-format all pdfium code. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: sigh Created 5 years, 4 months ago
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Index: core/src/fxcrt/extension.h
diff --git a/core/src/fxcrt/extension.h b/core/src/fxcrt/extension.h
index ba42916599f52aa26c18fe42d216d5a4254ac305..6005edb2af73eb6a89a2c77088e96229eae69c9e 100644
--- a/core/src/fxcrt/extension.h
+++ b/core/src/fxcrt/extension.h
@@ -10,427 +10,404 @@
#include "../../include/fxcrt/fx_basic.h"
#include "../../include/fxcrt/fx_safe_types.h"
-class IFXCRT_FileAccess
-{
-public:
- virtual ~IFXCRT_FileAccess() {}
- virtual FX_BOOL Open(const CFX_ByteStringC& fileName, FX_DWORD dwMode) = 0;
- virtual FX_BOOL Open(const CFX_WideStringC& fileName, FX_DWORD dwMode) = 0;
- virtual void Close() = 0;
- virtual void Release() = 0;
- virtual FX_FILESIZE GetSize() const = 0;
- virtual FX_FILESIZE GetPosition() const = 0;
- virtual FX_FILESIZE SetPosition(FX_FILESIZE pos) = 0;
- virtual size_t Read(void* pBuffer, size_t szBuffer) = 0;
- virtual size_t Write(const void* pBuffer, size_t szBuffer) = 0;
- virtual size_t ReadPos(void* pBuffer, size_t szBuffer, FX_FILESIZE pos) = 0;
- virtual size_t WritePos(const void* pBuffer, size_t szBuffer, FX_FILESIZE pos) = 0;
- virtual FX_BOOL Flush() = 0;
- virtual FX_BOOL Truncate(FX_FILESIZE szFile) = 0;
+class IFXCRT_FileAccess {
+ public:
+ virtual ~IFXCRT_FileAccess() {}
+ virtual FX_BOOL Open(const CFX_ByteStringC& fileName, FX_DWORD dwMode) = 0;
+ virtual FX_BOOL Open(const CFX_WideStringC& fileName, FX_DWORD dwMode) = 0;
+ virtual void Close() = 0;
+ virtual void Release() = 0;
+ virtual FX_FILESIZE GetSize() const = 0;
+ virtual FX_FILESIZE GetPosition() const = 0;
+ virtual FX_FILESIZE SetPosition(FX_FILESIZE pos) = 0;
+ virtual size_t Read(void* pBuffer, size_t szBuffer) = 0;
+ virtual size_t Write(const void* pBuffer, size_t szBuffer) = 0;
+ virtual size_t ReadPos(void* pBuffer, size_t szBuffer, FX_FILESIZE pos) = 0;
+ virtual size_t WritePos(const void* pBuffer,
+ size_t szBuffer,
+ FX_FILESIZE pos) = 0;
+ virtual FX_BOOL Flush() = 0;
+ virtual FX_BOOL Truncate(FX_FILESIZE szFile) = 0;
};
-IFXCRT_FileAccess* FXCRT_FileAccess_Create();
-class CFX_CRTFileStream final : public IFX_FileStream
-{
-public:
- CFX_CRTFileStream(IFXCRT_FileAccess* pFA) : m_pFile(pFA), m_dwCount(1), m_bUseRange(FALSE), m_nOffset(0), m_nSize(0) {}
- ~CFX_CRTFileStream()
- {
- if (m_pFile) {
- m_pFile->Release();
- }
- }
- virtual IFX_FileStream* Retain() override
- {
- m_dwCount ++;
- return this;
- }
- virtual void Release() override
- {
- FX_DWORD nCount = -- m_dwCount;
- if (!nCount) {
- delete this;
- }
- }
- virtual FX_FILESIZE GetSize() override
- {
- return m_bUseRange ? m_nSize : m_pFile->GetSize();
- }
- virtual FX_BOOL IsEOF() override
- {
- return GetPosition() >= GetSize();
- }
- virtual FX_FILESIZE GetPosition() override
- {
- FX_FILESIZE pos = m_pFile->GetPosition();
- if (m_bUseRange) {
- pos -= m_nOffset;
- }
- return pos;
+IFXCRT_FileAccess* FXCRT_FileAccess_Create();
+class CFX_CRTFileStream final : public IFX_FileStream {
+ public:
+ CFX_CRTFileStream(IFXCRT_FileAccess* pFA)
+ : m_pFile(pFA),
+ m_dwCount(1),
+ m_bUseRange(FALSE),
+ m_nOffset(0),
+ m_nSize(0) {}
+ ~CFX_CRTFileStream() {
+ if (m_pFile) {
+ m_pFile->Release();
+ }
+ }
+ virtual IFX_FileStream* Retain() override {
+ m_dwCount++;
+ return this;
+ }
+ virtual void Release() override {
+ FX_DWORD nCount = --m_dwCount;
+ if (!nCount) {
+ delete this;
+ }
+ }
+ virtual FX_FILESIZE GetSize() override {
+ return m_bUseRange ? m_nSize : m_pFile->GetSize();
+ }
+ virtual FX_BOOL IsEOF() override { return GetPosition() >= GetSize(); }
+ virtual FX_FILESIZE GetPosition() override {
+ FX_FILESIZE pos = m_pFile->GetPosition();
+ if (m_bUseRange) {
+ pos -= m_nOffset;
+ }
+ return pos;
+ }
+ virtual FX_BOOL SetRange(FX_FILESIZE offset, FX_FILESIZE size) override {
+ if (offset < 0 || size < 0) {
+ return FALSE;
}
- virtual FX_BOOL SetRange(FX_FILESIZE offset, FX_FILESIZE size) override
- {
- if (offset < 0 || size < 0) {
- return FALSE;
- }
- FX_SAFE_FILESIZE pos = size;
- pos += offset;
+ FX_SAFE_FILESIZE pos = size;
+ pos += offset;
- if (!pos.IsValid() || pos.ValueOrDie() > m_pFile->GetSize()) {
- return FALSE;
- }
+ if (!pos.IsValid() || pos.ValueOrDie() > m_pFile->GetSize()) {
+ return FALSE;
+ }
- m_nOffset = offset, m_nSize = size;
- m_bUseRange = TRUE;
- m_pFile->SetPosition(m_nOffset);
- return TRUE;
- }
- virtual void ClearRange() override
- {
- m_bUseRange = FALSE;
- }
- virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override
- {
- if (m_bUseRange && offset < 0) {
- return FALSE;
- }
- FX_SAFE_FILESIZE pos = offset;
+ m_nOffset = offset, m_nSize = size;
+ m_bUseRange = TRUE;
+ m_pFile->SetPosition(m_nOffset);
+ return TRUE;
+ }
+ virtual void ClearRange() override { m_bUseRange = FALSE; }
+ virtual FX_BOOL ReadBlock(void* buffer,
+ FX_FILESIZE offset,
+ size_t size) override {
+ if (m_bUseRange && offset < 0) {
+ return FALSE;
+ }
+ FX_SAFE_FILESIZE pos = offset;
- if (m_bUseRange) {
- pos += m_nOffset;
- if (!pos.IsValid() || pos.ValueOrDie() > (size_t)GetSize()) {
- return FALSE;
- }
- }
- return (FX_BOOL)m_pFile->ReadPos(buffer, size, pos.ValueOrDie());
- }
- virtual size_t ReadBlock(void* buffer, size_t size) override
- {
- if (m_bUseRange) {
- FX_FILESIZE availSize = m_nOffset + m_nSize - m_pFile->GetPosition();
- if ((size_t)availSize < size) {
- size -= size - (size_t)availSize;
- }
- }
- return m_pFile->Read(buffer, size);
- }
- virtual FX_BOOL WriteBlock(const void* buffer, FX_FILESIZE offset, size_t size) override
- {
- if (m_bUseRange) {
- offset += m_nOffset;
- }
- return (FX_BOOL)m_pFile->WritePos(buffer, size, offset);
- }
- virtual FX_BOOL Flush() override
- {
- return m_pFile->Flush();
- }
- IFXCRT_FileAccess* m_pFile;
- FX_DWORD m_dwCount;
- FX_BOOL m_bUseRange;
- FX_FILESIZE m_nOffset;
- FX_FILESIZE m_nSize;
+ if (m_bUseRange) {
+ pos += m_nOffset;
+ if (!pos.IsValid() || pos.ValueOrDie() > (size_t)GetSize()) {
+ return FALSE;
+ }
+ }
+ return (FX_BOOL)m_pFile->ReadPos(buffer, size, pos.ValueOrDie());
+ }
+ virtual size_t ReadBlock(void* buffer, size_t size) override {
+ if (m_bUseRange) {
+ FX_FILESIZE availSize = m_nOffset + m_nSize - m_pFile->GetPosition();
+ if ((size_t)availSize < size) {
+ size -= size - (size_t)availSize;
+ }
+ }
+ return m_pFile->Read(buffer, size);
+ }
+ virtual FX_BOOL WriteBlock(const void* buffer,
+ FX_FILESIZE offset,
+ size_t size) override {
+ if (m_bUseRange) {
+ offset += m_nOffset;
+ }
+ return (FX_BOOL)m_pFile->WritePos(buffer, size, offset);
+ }
+ virtual FX_BOOL Flush() override { return m_pFile->Flush(); }
+ IFXCRT_FileAccess* m_pFile;
+ FX_DWORD m_dwCount;
+ FX_BOOL m_bUseRange;
+ FX_FILESIZE m_nOffset;
+ FX_FILESIZE m_nSize;
};
-#define FX_MEMSTREAM_BlockSize (64 * 1024)
-#define FX_MEMSTREAM_Consecutive 0x01
-#define FX_MEMSTREAM_TakeOver 0x02
-class CFX_MemoryStream final : public IFX_MemoryStream
-{
-public:
- CFX_MemoryStream(FX_BOOL bConsecutive)
- : m_dwCount(1)
- , m_nTotalSize(0)
- , m_nCurSize(0)
- , m_nCurPos(0)
- , m_nGrowSize(FX_MEMSTREAM_BlockSize)
- , m_bUseRange(FALSE)
- {
- m_dwFlags = FX_MEMSTREAM_TakeOver | (bConsecutive ? FX_MEMSTREAM_Consecutive : 0);
- }
- CFX_MemoryStream(uint8_t* pBuffer, size_t nSize, FX_BOOL bTakeOver)
- : m_dwCount(1)
- , m_nTotalSize(nSize)
- , m_nCurSize(nSize)
- , m_nCurPos(0)
- , m_nGrowSize(FX_MEMSTREAM_BlockSize)
- , m_bUseRange(FALSE)
- {
- m_Blocks.Add(pBuffer);
- m_dwFlags = FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0);
- }
- ~CFX_MemoryStream()
- {
- if (m_dwFlags & FX_MEMSTREAM_TakeOver) {
- for (int32_t i = 0; i < m_Blocks.GetSize(); i++) {
- FX_Free((uint8_t*)m_Blocks[i]);
- }
- }
- m_Blocks.RemoveAll();
- }
- virtual IFX_FileStream* Retain() override
- {
- m_dwCount ++;
- return this;
- }
- virtual void Release() override
- {
- FX_DWORD nCount = -- m_dwCount;
- if (nCount) {
- return;
- }
- delete this;
- }
- virtual FX_FILESIZE GetSize() override
- {
- return m_bUseRange ? (FX_FILESIZE) m_nSize : (FX_FILESIZE)m_nCurSize;
+#define FX_MEMSTREAM_BlockSize (64 * 1024)
+#define FX_MEMSTREAM_Consecutive 0x01
+#define FX_MEMSTREAM_TakeOver 0x02
+class CFX_MemoryStream final : public IFX_MemoryStream {
+ public:
+ CFX_MemoryStream(FX_BOOL bConsecutive)
+ : m_dwCount(1),
+ m_nTotalSize(0),
+ m_nCurSize(0),
+ m_nCurPos(0),
+ m_nGrowSize(FX_MEMSTREAM_BlockSize),
+ m_bUseRange(FALSE) {
+ m_dwFlags =
+ FX_MEMSTREAM_TakeOver | (bConsecutive ? FX_MEMSTREAM_Consecutive : 0);
+ }
+ CFX_MemoryStream(uint8_t* pBuffer, size_t nSize, FX_BOOL bTakeOver)
+ : m_dwCount(1),
+ m_nTotalSize(nSize),
+ m_nCurSize(nSize),
+ m_nCurPos(0),
+ m_nGrowSize(FX_MEMSTREAM_BlockSize),
+ m_bUseRange(FALSE) {
+ m_Blocks.Add(pBuffer);
+ m_dwFlags =
+ FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0);
+ }
+ ~CFX_MemoryStream() {
+ if (m_dwFlags & FX_MEMSTREAM_TakeOver) {
+ for (int32_t i = 0; i < m_Blocks.GetSize(); i++) {
+ FX_Free((uint8_t*)m_Blocks[i]);
+ }
+ }
+ m_Blocks.RemoveAll();
+ }
+ virtual IFX_FileStream* Retain() override {
+ m_dwCount++;
+ return this;
+ }
+ virtual void Release() override {
+ FX_DWORD nCount = --m_dwCount;
+ if (nCount) {
+ return;
+ }
+ delete this;
+ }
+ virtual FX_FILESIZE GetSize() override {
+ return m_bUseRange ? (FX_FILESIZE)m_nSize : (FX_FILESIZE)m_nCurSize;
+ }
+ virtual FX_BOOL IsEOF() override { return m_nCurPos >= (size_t)GetSize(); }
+ virtual FX_FILESIZE GetPosition() override {
+ FX_FILESIZE pos = (FX_FILESIZE)m_nCurPos;
+ if (m_bUseRange) {
+ pos -= (FX_FILESIZE)m_nOffset;
+ }
+ return pos;
+ }
+ virtual FX_BOOL SetRange(FX_FILESIZE offset, FX_FILESIZE size) override {
+ if (offset < 0 || size < 0) {
+ return FALSE;
+ }
+ FX_SAFE_FILESIZE range = size;
+ range += offset;
+ if (!range.IsValid() || range.ValueOrDie() > m_nCurSize) {
+ return FALSE;
}
- virtual FX_BOOL IsEOF() override
- {
- return m_nCurPos >= (size_t)GetSize();
- }
- virtual FX_FILESIZE GetPosition() override
- {
- FX_FILESIZE pos = (FX_FILESIZE)m_nCurPos;
- if (m_bUseRange) {
- pos -= (FX_FILESIZE)m_nOffset;
- }
- return pos;
+
+ m_nOffset = (size_t)offset, m_nSize = (size_t)size;
+ m_bUseRange = TRUE;
+ m_nCurPos = m_nOffset;
+ return TRUE;
+ }
+ virtual void ClearRange() override { m_bUseRange = FALSE; }
+ virtual FX_BOOL ReadBlock(void* buffer,
+ FX_FILESIZE offset,
+ size_t size) override {
+ if (!buffer || !size) {
+ return FALSE;
}
- virtual FX_BOOL SetRange(FX_FILESIZE offset, FX_FILESIZE size) override
- {
- if (offset < 0 || size < 0) {
- return FALSE;
- }
- FX_SAFE_FILESIZE range = size;
- range += offset;
- if (!range.IsValid() || range.ValueOrDie() > m_nCurSize) {
- return FALSE;
- }
- m_nOffset = (size_t)offset, m_nSize = (size_t)size;
- m_bUseRange = TRUE;
- m_nCurPos = m_nOffset;
- return TRUE;
- }
- virtual void ClearRange() override
- {
- m_bUseRange = FALSE;
- }
- virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override
- {
- if (!buffer || !size) {
- return FALSE;
- }
+ FX_SAFE_FILESIZE safeOffset = offset;
+ if (m_bUseRange) {
+ safeOffset += m_nOffset;
+ }
- FX_SAFE_FILESIZE safeOffset = offset;
- if (m_bUseRange) {
- safeOffset += m_nOffset;
- }
+ if (!safeOffset.IsValid()) {
+ return FALSE;
+ }
- if (!safeOffset.IsValid()) {
- return FALSE;
- }
+ offset = safeOffset.ValueOrDie();
- offset = safeOffset.ValueOrDie();
+ FX_SAFE_SIZE_T newPos = size;
+ newPos += offset;
+ if (!newPos.IsValid() || newPos.ValueOrDefault(0) == 0 ||
+ newPos.ValueOrDie() > m_nCurSize) {
+ return FALSE;
+ }
- FX_SAFE_SIZE_T newPos = size;
- newPos += offset;
- if (!newPos.IsValid() || newPos.ValueOrDefault(0) == 0 || newPos.ValueOrDie() > m_nCurSize) {
- return FALSE;
- }
+ m_nCurPos = newPos.ValueOrDie();
+ if (m_dwFlags & FX_MEMSTREAM_Consecutive) {
+ FXSYS_memcpy(buffer, (uint8_t*)m_Blocks[0] + (size_t)offset, size);
+ return TRUE;
+ }
+ size_t nStartBlock = (size_t)offset / m_nGrowSize;
+ offset -= (FX_FILESIZE)(nStartBlock * m_nGrowSize);
+ while (size) {
+ size_t nRead = m_nGrowSize - (size_t)offset;
+ if (nRead > size) {
+ nRead = size;
+ }
+ FXSYS_memcpy(
+ buffer, (uint8_t*)m_Blocks[(int)nStartBlock] + (size_t)offset, nRead);
+ buffer = ((uint8_t*)buffer) + nRead;
+ size -= nRead;
+ nStartBlock++;
+ offset = 0;
+ }
+ return TRUE;
+ }
+ virtual size_t ReadBlock(void* buffer, size_t size) override {
+ if (m_nCurPos >= m_nCurSize) {
+ return 0;
+ }
+ if (m_bUseRange) {
+ size_t availSize = m_nOffset + m_nSize - m_nCurPos;
+ if (availSize < size) {
+ size -= size - (size_t)availSize;
+ }
+ }
+ size_t nRead = FX_MIN(size, m_nCurSize - m_nCurPos);
+ if (!ReadBlock(buffer, (int32_t)m_nCurPos, nRead)) {
+ return 0;
+ }
+ return nRead;
+ }
+ virtual FX_BOOL WriteBlock(const void* buffer,
+ FX_FILESIZE offset,
+ size_t size) override {
+ if (!buffer || !size) {
+ return FALSE;
+ }
+ if (m_bUseRange) {
+ offset += (FX_FILESIZE)m_nOffset;
+ }
+ if (m_dwFlags & FX_MEMSTREAM_Consecutive) {
+ FX_SAFE_SIZE_T newPos = size;
+ newPos += offset;
+ if (!newPos.IsValid())
+ return FALSE;
- m_nCurPos = newPos.ValueOrDie();
- if (m_dwFlags & FX_MEMSTREAM_Consecutive) {
- FXSYS_memcpy(buffer, (uint8_t*)m_Blocks[0] + (size_t)offset, size);
- return TRUE;
- }
- size_t nStartBlock = (size_t)offset / m_nGrowSize;
- offset -= (FX_FILESIZE)(nStartBlock * m_nGrowSize);
- while (size) {
- size_t nRead = m_nGrowSize - (size_t)offset;
- if (nRead > size) {
- nRead = size;
- }
- FXSYS_memcpy(buffer, (uint8_t*)m_Blocks[(int)nStartBlock] + (size_t)offset, nRead);
- buffer = ((uint8_t*)buffer) + nRead;
- size -= nRead;
- nStartBlock ++;
- offset = 0;
- }
- return TRUE;
+ m_nCurPos = newPos.ValueOrDie();
+ if (m_nCurPos > m_nTotalSize) {
+ m_nTotalSize =
+ (m_nCurPos + m_nGrowSize - 1) / m_nGrowSize * m_nGrowSize;
+ if (m_Blocks.GetSize() < 1) {
+ void* block = FX_Alloc(uint8_t, m_nTotalSize);
+ m_Blocks.Add(block);
+ } else {
+ m_Blocks[0] = FX_Realloc(uint8_t, m_Blocks[0], m_nTotalSize);
+ }
+ if (!m_Blocks[0]) {
+ m_Blocks.RemoveAll();
+ return FALSE;
+ }
+ }
+ FXSYS_memcpy((uint8_t*)m_Blocks[0] + (size_t)offset, buffer, size);
+ if (m_nCurSize < m_nCurPos) {
+ m_nCurSize = m_nCurPos;
+ }
+ return TRUE;
}
- virtual size_t ReadBlock(void* buffer, size_t size) override
- {
- if (m_nCurPos >= m_nCurSize) {
- return 0;
- }
- if (m_bUseRange) {
- size_t availSize = m_nOffset + m_nSize - m_nCurPos;
- if (availSize < size) {
- size -= size - (size_t)availSize;
- }
- }
- size_t nRead = FX_MIN(size, m_nCurSize - m_nCurPos);
- if (!ReadBlock(buffer, (int32_t)m_nCurPos, nRead)) {
- return 0;
- }
- return nRead;
- }
- virtual FX_BOOL WriteBlock(const void* buffer, FX_FILESIZE offset, size_t size) override
- {
- if (!buffer || !size) {
- return FALSE;
- }
- if (m_bUseRange) {
- offset += (FX_FILESIZE)m_nOffset;
- }
- if (m_dwFlags & FX_MEMSTREAM_Consecutive) {
- FX_SAFE_SIZE_T newPos = size;
- newPos += offset;
- if (!newPos.IsValid())
- return FALSE;
- m_nCurPos = newPos.ValueOrDie();
- if (m_nCurPos > m_nTotalSize) {
- m_nTotalSize = (m_nCurPos + m_nGrowSize - 1) / m_nGrowSize * m_nGrowSize;
- if (m_Blocks.GetSize() < 1) {
- void* block = FX_Alloc(uint8_t, m_nTotalSize);
- m_Blocks.Add(block);
- } else {
- m_Blocks[0] = FX_Realloc(uint8_t, m_Blocks[0], m_nTotalSize);
- }
- if (!m_Blocks[0]) {
- m_Blocks.RemoveAll();
- return FALSE;
- }
- }
- FXSYS_memcpy((uint8_t*)m_Blocks[0] + (size_t)offset, buffer, size);
- if (m_nCurSize < m_nCurPos) {
- m_nCurSize = m_nCurPos;
- }
- return TRUE;
- }
+ FX_SAFE_SIZE_T newPos = size;
+ newPos += offset;
+ if (!newPos.IsValid()) {
+ return FALSE;
+ }
- FX_SAFE_SIZE_T newPos = size;
- newPos += offset;
- if (!newPos.IsValid()) {
- return FALSE;
- }
+ if (!ExpandBlocks(newPos.ValueOrDie())) {
+ return FALSE;
+ }
+ m_nCurPos = newPos.ValueOrDie();
+ size_t nStartBlock = (size_t)offset / m_nGrowSize;
+ offset -= (FX_FILESIZE)(nStartBlock * m_nGrowSize);
+ while (size) {
+ size_t nWrite = m_nGrowSize - (size_t)offset;
+ if (nWrite > size) {
+ nWrite = size;
+ }
+ FXSYS_memcpy((uint8_t*)m_Blocks[(int)nStartBlock] + (size_t)offset,
+ buffer, nWrite);
+ buffer = ((uint8_t*)buffer) + nWrite;
+ size -= nWrite;
+ nStartBlock++;
+ offset = 0;
+ }
+ return TRUE;
+ }
+ virtual FX_BOOL Flush() override { return TRUE; }
+ virtual FX_BOOL IsConsecutive() const override {
+ return m_dwFlags & FX_MEMSTREAM_Consecutive;
+ }
+ virtual void EstimateSize(size_t nInitSize, size_t nGrowSize) override {
+ if (m_dwFlags & FX_MEMSTREAM_Consecutive) {
+ if (m_Blocks.GetSize() < 1) {
+ uint8_t* pBlock = FX_Alloc(uint8_t, FX_MAX(nInitSize, 4096));
+ m_Blocks.Add(pBlock);
+ }
+ m_nGrowSize = FX_MAX(nGrowSize, 4096);
+ } else if (m_Blocks.GetSize() < 1) {
+ m_nGrowSize = FX_MAX(nGrowSize, 4096);
+ }
+ }
+ virtual uint8_t* GetBuffer() const override {
+ return m_Blocks.GetSize() ? (uint8_t*)m_Blocks[0] : NULL;
+ }
+ virtual void AttachBuffer(uint8_t* pBuffer,
+ size_t nSize,
+ FX_BOOL bTakeOver = FALSE) override {
+ if (!(m_dwFlags & FX_MEMSTREAM_Consecutive)) {
+ return;
+ }
+ m_Blocks.RemoveAll();
+ m_Blocks.Add(pBuffer);
+ m_nTotalSize = m_nCurSize = nSize;
+ m_nCurPos = 0;
+ m_dwFlags =
+ FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0);
+ ClearRange();
+ }
+ virtual void DetachBuffer() override {
+ if (!(m_dwFlags & FX_MEMSTREAM_Consecutive)) {
+ return;
+ }
+ m_Blocks.RemoveAll();
+ m_nTotalSize = m_nCurSize = m_nCurPos = 0;
+ m_dwFlags = FX_MEMSTREAM_TakeOver;
+ ClearRange();
+ }
- if (!ExpandBlocks(newPos.ValueOrDie())) {
- return FALSE;
- }
- m_nCurPos = newPos.ValueOrDie();
- size_t nStartBlock = (size_t)offset / m_nGrowSize;
- offset -= (FX_FILESIZE)(nStartBlock * m_nGrowSize);
- while (size) {
- size_t nWrite = m_nGrowSize - (size_t)offset;
- if (nWrite > size) {
- nWrite = size;
- }
- FXSYS_memcpy((uint8_t*)m_Blocks[(int)nStartBlock] + (size_t)offset, buffer, nWrite);
- buffer = ((uint8_t*)buffer) + nWrite;
- size -= nWrite;
- nStartBlock ++;
- offset = 0;
- }
- return TRUE;
- }
- virtual FX_BOOL Flush() override
- {
- return TRUE;
- }
- virtual FX_BOOL IsConsecutive() const override
- {
- return m_dwFlags & FX_MEMSTREAM_Consecutive;
- }
- virtual void EstimateSize(size_t nInitSize, size_t nGrowSize) override
- {
- if (m_dwFlags & FX_MEMSTREAM_Consecutive) {
- if (m_Blocks.GetSize() < 1) {
- uint8_t* pBlock = FX_Alloc(uint8_t, FX_MAX(nInitSize, 4096));
- m_Blocks.Add(pBlock);
- }
- m_nGrowSize = FX_MAX(nGrowSize, 4096);
- } else if (m_Blocks.GetSize() < 1) {
- m_nGrowSize = FX_MAX(nGrowSize, 4096);
- }
- }
- virtual uint8_t* GetBuffer() const override
- {
- return m_Blocks.GetSize() ? (uint8_t*)m_Blocks[0] : NULL;
- }
- virtual void AttachBuffer(uint8_t* pBuffer, size_t nSize, FX_BOOL bTakeOver = FALSE) override
- {
- if (!(m_dwFlags & FX_MEMSTREAM_Consecutive)) {
- return;
- }
- m_Blocks.RemoveAll();
- m_Blocks.Add(pBuffer);
- m_nTotalSize = m_nCurSize = nSize;
- m_nCurPos = 0;
- m_dwFlags = FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0);
- ClearRange();
- }
- virtual void DetachBuffer() override
- {
- if (!(m_dwFlags & FX_MEMSTREAM_Consecutive)) {
- return;
- }
- m_Blocks.RemoveAll();
- m_nTotalSize = m_nCurSize = m_nCurPos = 0;
- m_dwFlags = FX_MEMSTREAM_TakeOver;
- ClearRange();
- }
-protected:
- CFX_PtrArray m_Blocks;
- FX_DWORD m_dwCount;
- size_t m_nTotalSize;
- size_t m_nCurSize;
- size_t m_nCurPos;
- size_t m_nGrowSize;
- FX_DWORD m_dwFlags;
- FX_BOOL m_bUseRange;
- size_t m_nOffset;
- size_t m_nSize;
- FX_BOOL ExpandBlocks(size_t size)
- {
- if (m_nCurSize < size) {
- m_nCurSize = size;
- }
- if (size <= m_nTotalSize) {
- return TRUE;
- }
- int32_t iCount = m_Blocks.GetSize();
- size = (size - m_nTotalSize + m_nGrowSize - 1) / m_nGrowSize;
- m_Blocks.SetSize(m_Blocks.GetSize() + (int32_t)size);
- while (size --) {
- uint8_t* pBlock = FX_Alloc(uint8_t, m_nGrowSize);
- m_Blocks.SetAt(iCount ++, pBlock);
- m_nTotalSize += m_nGrowSize;
- }
- return TRUE;
- }
+ protected:
+ CFX_PtrArray m_Blocks;
+ FX_DWORD m_dwCount;
+ size_t m_nTotalSize;
+ size_t m_nCurSize;
+ size_t m_nCurPos;
+ size_t m_nGrowSize;
+ FX_DWORD m_dwFlags;
+ FX_BOOL m_bUseRange;
+ size_t m_nOffset;
+ size_t m_nSize;
+ FX_BOOL ExpandBlocks(size_t size) {
+ if (m_nCurSize < size) {
+ m_nCurSize = size;
+ }
+ if (size <= m_nTotalSize) {
+ return TRUE;
+ }
+ int32_t iCount = m_Blocks.GetSize();
+ size = (size - m_nTotalSize + m_nGrowSize - 1) / m_nGrowSize;
+ m_Blocks.SetSize(m_Blocks.GetSize() + (int32_t)size);
+ while (size--) {
+ uint8_t* pBlock = FX_Alloc(uint8_t, m_nGrowSize);
+ m_Blocks.SetAt(iCount++, pBlock);
+ m_nTotalSize += m_nGrowSize;
+ }
+ return TRUE;
+ }
};
#ifdef __cplusplus
extern "C" {
#endif
-#define MT_N 848
-#define MT_M 456
-#define MT_Matrix_A 0x9908b0df
-#define MT_Upper_Mask 0x80000000
-#define MT_Lower_Mask 0x7fffffff
+#define MT_N 848
+#define MT_M 456
+#define MT_Matrix_A 0x9908b0df
+#define MT_Upper_Mask 0x80000000
+#define MT_Lower_Mask 0x7fffffff
typedef struct _FX_MTRANDOMCONTEXT {
- _FX_MTRANDOMCONTEXT()
- {
- mti = MT_N + 1;
- bHaveSeed = FALSE;
- }
- FX_DWORD mti;
- FX_BOOL bHaveSeed;
- FX_DWORD mt[MT_N];
-} FX_MTRANDOMCONTEXT, * FX_LPMTRANDOMCONTEXT;
-typedef FX_MTRANDOMCONTEXT const * FX_LPCMTRANDOMCONTEXT;
+ _FX_MTRANDOMCONTEXT() {
+ mti = MT_N + 1;
+ bHaveSeed = FALSE;
+ }
+ FX_DWORD mti;
+ FX_BOOL bHaveSeed;
+ FX_DWORD mt[MT_N];
+} FX_MTRANDOMCONTEXT, *FX_LPMTRANDOMCONTEXT;
+typedef FX_MTRANDOMCONTEXT const* FX_LPCMTRANDOMCONTEXT;
#if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
FX_BOOL FX_GenerateCryptoRandom(FX_DWORD* pBuffer, int32_t iCount);
#endif
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