diff options
Diffstat (limited to 'core/src/fxcrt')
| -rw-r--r-- | core/src/fxcrt/extension.h | 114 |
1 files changed, 11 insertions, 103 deletions
diff --git a/core/src/fxcrt/extension.h b/core/src/fxcrt/extension.h index 6005edb2af..1750c5aae9 100644 --- a/core/src/fxcrt/extension.h +++ b/core/src/fxcrt/extension.h @@ -34,10 +34,8 @@ 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) {} + m_dwCount(1) { + } ~CFX_CRTFileStream() { if (m_pFile) { m_pFile->Release(); @@ -54,73 +52,30 @@ class CFX_CRTFileStream final : public IFX_FileStream { } } virtual FX_FILESIZE GetSize() override { - return m_bUseRange ? m_nSize : m_pFile->GetSize(); + return 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; - } - - FX_SAFE_FILESIZE pos = size; - pos += offset; - - 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; + return m_pFile->GetPosition(); } - 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()); + return (FX_BOOL)m_pFile->ReadPos(buffer, size, offset); } 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(); } + + protected: 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 @@ -132,8 +87,7 @@ class CFX_MemoryStream final : public IFX_MemoryStream { m_nTotalSize(0), m_nCurSize(0), m_nCurPos(0), - m_nGrowSize(FX_MEMSTREAM_BlockSize), - m_bUseRange(FALSE) { + m_nGrowSize(FX_MEMSTREAM_BlockSize) { m_dwFlags = FX_MEMSTREAM_TakeOver | (bConsecutive ? FX_MEMSTREAM_Consecutive : 0); } @@ -142,8 +96,7 @@ class CFX_MemoryStream final : public IFX_MemoryStream { m_nTotalSize(nSize), m_nCurSize(nSize), m_nCurPos(0), - m_nGrowSize(FX_MEMSTREAM_BlockSize), - m_bUseRange(FALSE) { + m_nGrowSize(FX_MEMSTREAM_BlockSize) { m_Blocks.Add(pBuffer); m_dwFlags = FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0); @@ -168,32 +121,12 @@ class CFX_MemoryStream final : public IFX_MemoryStream { delete this; } virtual FX_FILESIZE GetSize() override { - return m_bUseRange ? (FX_FILESIZE)m_nSize : (FX_FILESIZE)m_nCurSize; + return (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; - } - - m_nOffset = (size_t)offset, m_nSize = (size_t)size; - m_bUseRange = TRUE; - m_nCurPos = m_nOffset; - return TRUE; + return (FX_FILESIZE)m_nCurPos; } - virtual void ClearRange() override { m_bUseRange = FALSE; } virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override { @@ -201,17 +134,6 @@ class CFX_MemoryStream final : public IFX_MemoryStream { return FALSE; } - FX_SAFE_FILESIZE safeOffset = offset; - if (m_bUseRange) { - safeOffset += m_nOffset; - } - - if (!safeOffset.IsValid()) { - return FALSE; - } - - offset = safeOffset.ValueOrDie(); - FX_SAFE_SIZE_T newPos = size; newPos += offset; if (!newPos.IsValid() || newPos.ValueOrDefault(0) == 0 || @@ -244,12 +166,6 @@ class CFX_MemoryStream final : public IFX_MemoryStream { 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; @@ -262,9 +178,6 @@ class CFX_MemoryStream final : public IFX_MemoryStream { 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; @@ -349,7 +262,6 @@ class CFX_MemoryStream final : public IFX_MemoryStream { m_nCurPos = 0; m_dwFlags = FX_MEMSTREAM_Consecutive | (bTakeOver ? FX_MEMSTREAM_TakeOver : 0); - ClearRange(); } virtual void DetachBuffer() override { if (!(m_dwFlags & FX_MEMSTREAM_Consecutive)) { @@ -358,7 +270,6 @@ class CFX_MemoryStream final : public IFX_MemoryStream { m_Blocks.RemoveAll(); m_nTotalSize = m_nCurSize = m_nCurPos = 0; m_dwFlags = FX_MEMSTREAM_TakeOver; - ClearRange(); } protected: @@ -369,9 +280,6 @@ class CFX_MemoryStream final : public IFX_MemoryStream { 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; |