BaseTools: resolve initialization order errors in VfrFormPkg.h

[mirror_edk2.git] / BaseTools / Source / C / BrotliCompress / enc / streams.h

/* Copyright 2009 Google Inc. All Rights Reserved.\r
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   Distributed under MIT license.\r
   See file LICENSE for detail or copy at https://opensource.org/licenses/MIT\r
*/\r
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/* Input and output classes for streaming brotli compression. */\r
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#ifndef BROTLI_ENC_STREAMS_H_\r
#define BROTLI_ENC_STREAMS_H_\r
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#include <stdio.h>\r
#include <string>\r
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#include "../common/types.h"\r
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namespace brotli {\r
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/* Input interface for the compression routines. */\r
class BrotliIn {\r
 public:\r
  virtual ~BrotliIn(void) {}\r
\r
  /* Return a pointer to the next block of input of at most n bytes.\r
     Return the actual length in *nread.\r
     At end of data, return NULL. Don't return NULL if there is more data\r
     to read, even if called with n == 0.\r
     Read will only be called if some of its bytes are needed. */\r
  virtual const void* Read(size_t n, size_t* nread) = 0;\r
};\r
\r
/* Output interface for the compression routines. */\r
class BrotliOut {\r
 public:\r
  virtual ~BrotliOut(void) {}\r
\r
  /* Write n bytes of data from buf.\r
     Return true if all written, false otherwise. */\r
  virtual bool Write(const void *buf, size_t n) = 0;\r
};\r
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/* Adapter class to make BrotliIn objects from raw memory. */\r
class BrotliMemIn : public BrotliIn {\r
 public:\r
  BrotliMemIn(const void* buf, size_t len);\r
\r
  void Reset(const void* buf, size_t len);\r
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  /* returns the amount of data consumed */\r
  size_t position(void) const { return pos_; }\r
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  const void* Read(size_t n, size_t* OUTPUT);\r
\r
 private:\r
  const void* buf_;  /* start of input buffer */\r
  size_t len_;  /* length of input */\r
  size_t pos_;  /* current read position within input */\r
};\r
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/* Adapter class to make BrotliOut objects from raw memory. */\r
class BrotliMemOut : public BrotliOut {\r
 public:\r
  BrotliMemOut(void* buf, size_t len);\r
\r
  void Reset(void* buf, size_t len);\r
\r
  /* returns the amount of data written */\r
  size_t position(void) const { return pos_; }\r
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  bool Write(const void* buf, size_t n);\r
\r
 private:\r
  void* buf_;  /* start of output buffer */\r
  size_t len_;  /* length of output */\r
  size_t pos_;  /* current write position within output */\r
};\r
\r
/* Adapter class to make BrotliOut objects from a string. */\r
class BrotliStringOut : public BrotliOut {\r
 public:\r
  /* Create a writer that appends its data to buf.\r
     buf->size() will grow to at most max_size\r
     buf is expected to be empty when constructing BrotliStringOut. */\r
  BrotliStringOut(std::string* buf, size_t max_size);\r
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  void Reset(std::string* buf, size_t max_len);\r
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  bool Write(const void* buf, size_t n);\r
\r
 private:\r
  std::string* buf_;  /* start of output buffer */\r
  size_t max_size_;  /* max length of output */\r
};\r
\r
/* Adapter class to make BrotliIn object from a file. */\r
class BrotliFileIn : public BrotliIn {\r
 public:\r
  BrotliFileIn(FILE* f, size_t max_read_size);\r
  ~BrotliFileIn(void);\r
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  const void* Read(size_t n, size_t* bytes_read);\r
\r
 private:\r
  FILE* f_;\r
  char* buf_;\r
  size_t buf_size_;\r
};\r
\r
/* Adapter class to make BrotliOut object from a file. */\r
class BrotliFileOut : public BrotliOut {\r
 public:\r
  explicit BrotliFileOut(FILE* f);\r
\r
  bool Write(const void* buf, size_t n);\r
 private:\r
  FILE* f_;\r
};\r
\r
}  /* namespace brotli */\r
\r
#endif  /* BROTLI_ENC_STREAMS_H_ */\r