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// Copyright (C) 2003 Davis E. King ([email protected])
// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_ENTROPY_DECODER_KERNEl_C_
#define DLIB_ENTROPY_DECODER_KERNEl_C_
#include "entropy_decoder_kernel_abstract.h"
#include "../algs.h"
#include "../assert.h"
#include <iostream>
namespace dlib
{
template <
typename decoder
>
class entropy_decoder_kernel_c : public decoder
{
public:
std::istream& get_stream (
) const;
void decode (
uint32 low_count,
uint32 high_count
);
uint32 get_target (
uint32 total
);
private:
uint32 _get_target;
uint32 TOTAL;
};
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
// member function definitions
// ----------------------------------------------------------------------------------------
// ----------------------------------------------------------------------------------------
template <
typename decoder
>
std::istream& entropy_decoder_kernel_c<decoder>::
get_stream (
) const
{
// make sure requires clause is not broken
DLIB_CASSERT( this->stream_is_set() == true,
"\tstd::istream& entropy_decoder::get_stream()"
<< "\n\tyou must set a stream for this object before you can get it"
<< "\n\tthis: " << this
);
// call the real function
return decoder::get_stream();
}
// ----------------------------------------------------------------------------------------
template <
typename decoder
>
void entropy_decoder_kernel_c<decoder>::
decode (
uint32 low_count,
uint32 high_count
)
{
// make sure requires clause is not broken
DLIB_CASSERT( (low_count <= _get_target) && (_get_target < high_count) &&
(high_count <= TOTAL) &&
(this->stream_is_set() == true) && (this->get_target_called() == true),
"\tvoid entropy_decoder::decode()"
<< "\n\tRefer to the ensures clause for this function for further information."
<< "\n\tNote that _get_target refers to get_target(TOTAL)"
<< "\n\tthis: " << this
<< "\n\tlow_count: " << low_count
<< "\n\thigh_count: " << high_count
<< "\n\tTOTAL: " << TOTAL
<< "\n\tget_target(TOTAL): " << _get_target
<< "\n\tis_stream_set(): " << (this->stream_is_set() ? "true" : "false" )
<< "\n\tget_target_called(): " << (this->get_target_called() ? "true" : "false" )
);
// call the real function
decoder::decode(low_count,high_count);
}
// ----------------------------------------------------------------------------------------
template <
typename decoder
>
uint32 entropy_decoder_kernel_c<decoder>::
get_target (
uint32 total
)
{
// make sure requires clause is not broken
DLIB_CASSERT( (total > 0) && (total < 65536) && (this->stream_is_set() == true),
"\tvoid entropy_decoder::get_target()"
<< "\n\tyou must set a stream for this object before you can get the "
<< "\n\rnext target."
<< "\n\tthis: " << this
<< "\n\ttotal: " << total
);
// call the real function
_get_target = decoder::get_target(total);
TOTAL = total;
return _get_target;
}
// ----------------------------------------------------------------------------------------
}
#endif // DLIB_ENTROPY_ENCODER_KERNEl_C_
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