claw::graphic::jpeg::writer::destination_manager Struct Reference

#include <jpeg.hpp>

List of all members.

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Detailed Description

Destination manager that allow us to write in a std::ostream.

Author:

Julien Jorge

Definition at line 195 of file jpeg.hpp.

Public Member Functions
	destination_manager (std::ostream &os)
	Constructor.
	~destination_manager ()
	Destructor.
void	flush ()
	Write the content of the buffer in the file.
void	term ()
	Write the last pending bytes in the file.
Public Attributes
struct jpeg_destination_mgr	pub
	"public" fields, needed by the jpeg library.
Private Attributes
std::ostream &	m_output
	The stream in which we write the data.
JOCTET *	m_buffer
	Pointer on the begining of the buffer.
const unsigned int	m_buffer_size
	Number of bytes in the buffer.

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Constructor & Destructor Documentation

claw::graphic::jpeg::writer::destination_manager::destination_manager

(

std::ostream &

os

)

Constructor.

Parameters:

os

The stream we write in.

Definition at line 91 of file jpeg_writer.cpp.

  : m_output(os), m_buffer_size(1024)
{
  m_buffer = new JOCTET[m_buffer_size];
  pub.next_output_byte = m_buffer;
  pub.free_in_buffer = m_buffer_size;
} // jpeg::writer::destination_manager::destination_manager()

claw::graphic::jpeg::writer::destination_manager::~destination_manager

(

)

Destructor.

Definition at line 103 of file jpeg_writer.cpp.

References m_buffer.

{
  delete[] m_buffer;
} // jpeg::writer::destination_manager::~destination_manager()

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Member Function Documentation

void claw::graphic::jpeg::writer::destination_manager::flush

(

)

Write the content of the buffer in the file.

Definition at line 112 of file jpeg_writer.cpp.

References m_buffer, m_buffer_size, m_output, and pub.

{
  m_output.write((char*)m_buffer, m_buffer_size);

  pub.next_output_byte = m_buffer;
  pub.free_in_buffer = m_buffer_size;
} // jpeg::writer::destination_manager::fill_output_buffer()

void claw::graphic::jpeg::writer::destination_manager::term

(

)

Write the last pending bytes in the file.

Definition at line 125 of file jpeg_writer.cpp.

References m_buffer, m_buffer_size, m_output, and pub.

{
  m_output.write((char*)m_buffer, m_buffer_size - pub.free_in_buffer);
} // jpeg::writer::destination_manager::term()

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Member Data Documentation

struct jpeg_destination_mgr claw::graphic::jpeg::writer::destination_manager::pub [read]

"public" fields, needed by the jpeg library.

Definition at line 206 of file jpeg.hpp.

Referenced by claw::graphic::jpeg::writer::create_compress_info(), flush(), and term().

std::ostream& claw::graphic::jpeg::writer::destination_manager::m_output [private]

The stream in which we write the data.

Definition at line 210 of file jpeg.hpp.

Referenced by flush(), and term().

JOCTET* claw::graphic::jpeg::writer::destination_manager::m_buffer [private]

Pointer on the begining of the buffer.

Definition at line 213 of file jpeg.hpp.

Referenced by flush(), term(), and ~destination_manager().

const unsigned int claw::graphic::jpeg::writer::destination_manager::m_buffer_size [private]

Number of bytes in the buffer.

Definition at line 216 of file jpeg.hpp.

Referenced by flush(), and term().

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The documentation for this struct was generated from the following files:

• jpeg.hpp
• code/jpeg_writer.cpp