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# channel.hpp File Reference

## Detailed Description

Channel utilities.

Author:
  Lubomir Bourdev and Hailin Jin
  Adobe Systems Incorporated

Date:
  2005-2007
  Last updated on May 6, 2007

Definitions of standard GIL channel models

`#include <limits>`
`#include <cassert>`
`#include <boost/cstdint.hpp>`
`#include "gil_config.hpp"`
`#include "utilities.hpp"`

Go to the source code of this file.

## Namespaces

namespace | boost
namespace | boost::gil
namespace | boost::gil::detail
namespace | std

## Classes

struct | channel_traits
| Traits for channels. Contains the following members:. More...
struct | scoped_channel_value
| A channel adaptor that modifies the range of the source channel. Models: ChannelValueConcept. More...
class | packed_channel_value
| The value of a subbyte channel. Models: ChannelValueConcept. More...
class | packed_channel_reference< BitField, FirstBit, NumBits, false >
| A constant subbyte channel reference whose bit offset is fixed at compile time. Models ChannelConcept. More...
class | packed_channel_reference< BitField, FirstBit, NumBits, true >
| A mutable subbyte channel reference whose bit offset is fixed at compile time. Models ChannelConcept. More...
class | packed_dynamic_channel_reference< BitField, NumBits, false >
| Models a constant subbyte channel reference whose bit offset is a runtime parameter. Models ChannelConcept Same as packed_channel_reference, except that the offset is a runtime parameter. More...
class | packed_dynamic_channel_reference< BitField, NumBits, true >
| Models a mutable subbyte channel reference whose bit offset is a runtime parameter. Models ChannelConcept Same as packed_channel_reference, except that the offset is a runtime parameter. More...

## Typedefs

typedef uint8_t | bits8
typedef uint16_t | bits16
typedef uint32_t | bits32
typedef int8_t | bits8s
typedef int16_t | bits16s
typedef int32_t | bits32s
typedef scoped_channel_value < float, float_zero, float_one > | bits32f

## Functions

template<typename BF, int FB, int NB, bool M, typename R>
void | swap (const boost::gil::packed_channel_reference< BF, FB, NB, M > x, R &y)
| swap for packed_channel_reference
template<typename BF, int FB, int NB, bool M>
void | swap (typename boost::gil::packed_channel_reference< BF, FB, NB, M >::value_type &x, const boost::gil::packed_channel_reference< BF, FB, NB, M > y)
| swap for packed_channel_reference
template<typename BF, int FB, int NB, bool M>
void | swap (const boost::gil::packed_channel_reference< BF, FB, NB, M > x, const boost::gil::packed_channel_reference< BF, FB, NB, M > y)
| swap for packed_channel_reference
template<typename BF, int NB, bool M, typename R>
void | swap (const boost::gil::packed_dynamic_channel_reference< BF, NB, M > x, R &y)
| swap for packed_dynamic_channel_reference
template<typename BF, int NB, bool M>
void | swap (typename boost::gil::packed_dynamic_channel_reference< BF, NB, M >::value_type &x, const boost::gil::packed_dynamic_channel_reference< BF, NB, M > y)
| swap for packed_dynamic_channel_reference
template<typename BF, int NB, bool M>
void | swap (const boost::gil::packed_dynamic_channel_reference< BF, NB, M > x, const boost::gil::packed_dynamic_channel_reference< BF, NB, M > y)
| swap for packed_dynamic_channel_reference