1 files changed, 78 insertions, 0 deletions
diff --git a/xfa/src/fgas/crt/fgas_stream.h b/xfa/src/fgas/crt/fgas_stream.h
new file mode 100644
index 0000000000..cc40a76cc6
--- /dev/null
+++ b/xfa/src/fgas/crt/fgas_stream.h
@@ -0,0 +1,78 @@
+// 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_SRC_FGAS_CRT_FGAS_STREAM_H_
+#define XFA_SRC_FGAS_CRT_FGAS_STREAM_H_
+
+#include "core/include/fxcrt/fx_stream.h"
+#include "core/include/fxcrt/fx_system.h"
+
+class IFX_Stream;
+
+IFX_FileRead* FX_CreateFileRead(IFX_Stream* pBaseStream,
+                                FX_BOOL bReleaseStream = FALSE);
+IFX_FileRead* FX_CreateFileRead(IFX_BufferRead* pBufferRead,
+                                FX_FILESIZE iFileSize = -1,
+                                FX_BOOL bReleaseStream = TRUE);
+IFX_FileWrite* FX_CreateFileWrite(IFX_Stream* pBaseStream,
+                                  FX_BOOL bReleaseStream = FALSE);
+enum FX_STREAMACCESS {
+  FX_STREAMACCESS_Binary = 0x00,
+  FX_STREAMACCESS_Text = 0x01,
+  FX_STREAMACCESS_Read = 0x02,
+  FX_STREAMACCESS_Write = 0x04,
+  FX_STREAMACCESS_Truncate = 0x10,
+  FX_STREAMACCESS_Append = 0x20,
+  FX_STREAMACCESS_Create = 0x80,
+};
+
+enum FX_STREAMSEEK {
+  FX_STREAMSEEK_Begin = 0,
+  FX_STREAMSEEK_Current,
+  FX_STREAMSEEK_End,
+};
+
+class IFX_Stream {
+ public:
+  static IFX_Stream* CreateStream(IFX_FileRead* pFileRead, FX_DWORD dwAccess);
+  static IFX_Stream* CreateStream(IFX_FileWrite* pFileWrite, FX_DWORD dwAccess);
+  static IFX_Stream* CreateStream(const FX_WCHAR* pszFileName,
+                                  FX_DWORD dwAccess);
+  static IFX_Stream* CreateStream(uint8_t* pData,
+                                  int32_t length,
+                                  FX_DWORD dwAccess);
+  static IFX_Stream* CreateStream(IFX_BufferRead* pBufferRead,
+                                  FX_DWORD dwAccess,
+                                  int32_t iFileSize = -1,
+                                  FX_BOOL bReleaseBufferRead = TRUE);
+  static IFX_Stream* CreateTextStream(IFX_Stream* pBaseStream,
+                                      FX_BOOL bDeleteOnRelease);
+  virtual ~IFX_Stream() {}
+  virtual void Release() = 0;
+  virtual IFX_Stream* Retain() = 0;
+  virtual FX_DWORD GetAccessModes() const = 0;
+  virtual int32_t GetLength() const = 0;
+  virtual int32_t Seek(FX_STREAMSEEK eSeek, int32_t iOffset) = 0;
+  virtual int32_t GetPosition() = 0;
+  virtual FX_BOOL IsEOF() const = 0;
+  virtual int32_t ReadData(uint8_t* pBuffer, int32_t iBufferSize) = 0;
+  virtual int32_t ReadString(FX_WCHAR* pStr,
+                             int32_t iMaxLength,
+                             FX_BOOL& bEOS,
+                             int32_t const* pByteSize = NULL) = 0;
+  virtual int32_t WriteData(const uint8_t* pBuffer, int32_t iBufferSize) = 0;
+  virtual int32_t WriteString(const FX_WCHAR* pStr, int32_t iLength) = 0;
+  virtual void Flush() = 0;
+  virtual FX_BOOL SetLength(int32_t iLength) = 0;
+  virtual int32_t GetBOM(uint8_t bom[4]) const = 0;
+  virtual FX_WORD GetCodePage() const = 0;
+  virtual FX_WORD SetCodePage(FX_WORD wCodePage) = 0;
+  virtual IFX_Stream* CreateSharedStream(FX_DWORD dwAccess,
+                                         int32_t iOffset,
+                                         int32_t iLength) = 0;
+};
+
+#endif  // XFA_SRC_FGAS_CRT_FGAS_STREAM_H_