Resampler Class Reference

#include <resampler.h>

Collaboration diagram for Resampler:

Classes
struct	Contrib
struct	Contrib_List
struct	Scan_Buf

Public Types
enum	Boundary_Op { BOUNDARY_WRAP = 0 , BOUNDARY_REFLECT = 1 , BOUNDARY_CLAMP = 2 }
enum	Status { STATUS_OKAY = 0 , STATUS_OUT_OF_MEMORY = 1 , STATUS_BAD_FILTER_NAME = 2 , STATUS_SCAN_BUFFER_FULL = 3 }
typedef Resample_Real	Sample

Public Member Functions
	Resampler (int src_x, int src_y, int dst_x, int dst_y, Boundary_Op boundary_op=BOUNDARY_CLAMP, Resample_Real sample_low=0.0f, Resample_Real sample_high=0.0f, const char *Pfilter_name=RESAMPLER_DEFAULT_FILTER, Contrib_List *Pclist_x=NULL, Contrib_List *Pclist_y=NULL, Resample_Real filter_x_scale=1.0f, Resample_Real filter_y_scale=1.0f, Resample_Real src_x_ofs=0.0f, Resample_Real src_y_ofs=0.0f)
	~Resampler ()
void	restart ()
bool	put_line (const Sample *Psrc)
const Sample *	get_line ()
Status	status () const
void	get_clists (Contrib_List **ptr_clist_x, Contrib_List **ptr_clist_y)
Contrib_List *	get_clist_x () const
Contrib_List *	get_clist_y () const

Static Public Member Functions
static int	get_filter_num ()
static char *	get_filter_name (int filter_num)

Private Types
enum	{ MAX_SCAN_BUF_SIZE = RESAMPLER_MAX_DIMENSION }

Private Member Functions
	Resampler ()
	Resampler (const Resampler &o)
Resampler &	operator= (const Resampler &o)
void	resample_x (Sample *Pdst, const Sample *Psrc)
void	scale_y_mov (Sample *Ptmp, const Sample *Psrc, Resample_Real weight, int dst_x)
void	scale_y_add (Sample *Ptmp, const Sample *Psrc, Resample_Real weight, int dst_x)
void	clamp (Sample *Pdst, int n)
void	resample_y (Sample *Pdst)
int	reflect (const int j, const int src_x, const Boundary_Op boundary_op)
Contrib_List *	make_clist (int src_x, int dst_x, Boundary_Op boundary_op, Resample_Real(*Pfilter)(Resample_Real), Resample_Real filter_support, Resample_Real filter_scale, Resample_Real src_ofs)
int	count_ops (Contrib_List *Pclist, int k)
Resample_Real	clamp_sample (Resample_Real f) const

Private Attributes
int	total_ops
int	m_intermediate_x
int	m_resample_src_x
int	m_resample_src_y
int	m_resample_dst_x
int	m_resample_dst_y
Boundary_Op	m_boundary_op
Sample *	m_Pdst_buf
Sample *	m_Ptmp_buf
Contrib_List *	m_Pclist_x
Contrib_List *	m_Pclist_y
bool	m_clist_x_forced
bool	m_clist_y_forced
bool	m_delay_x_resample
int *	m_Psrc_y_count
unsigned char *	m_Psrc_y_flag
Scan_Buf *	m_Pscan_buf
int	m_cur_src_y
int	m_cur_dst_y
Status	m_status
Resample_Real	m_lo
Resample_Real	m_hi

Detailed Description

Definition at line 14 of file resampler.h.

Member Typedef Documentation

Sample

typedef Resample_Real Resampler::Sample

Definition at line 17 of file resampler.h.

Member Enumeration Documentation

anonymous enum

anonymous enum

private

Enumerator
MAX_SCAN_BUF_SIZE

Definition at line 129 of file resampler.h.

Boundary_Op

enum Resampler::Boundary_Op

Enumerator
BOUNDARY_WRAP
BOUNDARY_REFLECT
BOUNDARY_CLAMP

Definition at line 31 of file resampler.h.

Status

enum Resampler::Status

Enumerator
STATUS_OKAY
STATUS_OUT_OF_MEMORY
STATUS_BAD_FILTER_NAME
STATUS_SCAN_BUFFER_FULL

Definition at line 38 of file resampler.h.

Constructor & Destructor Documentation

Resampler() [1/3]

Resampler::Resampler	(	int	src_x,
		int	src_y,
		int	dst_x,
		int	dst_y,
		Boundary_Op	boundary_op = BOUNDARY_CLAMP,
		Resample_Real	sample_low = 0.0f,
		Resample_Real	sample_high = 0.0f,
		const char *	Pfilter_name = RESAMPLER_DEFAULT_FILTER,
		Contrib_List *	Pclist_x = NULL,
		Contrib_List *	Pclist_y = NULL,
		Resample_Real	filter_x_scale = 1.0f,
		Resample_Real	filter_y_scale = 1.0f,
		Resample_Real	src_x_ofs = 0.0f,
		Resample_Real	src_y_ofs = 0.0f
	)

Definition at line 1031 of file resampler.cpp.

References count_ops(), func, g_filters, m_boundary_op, m_clist_x_forced, m_clist_y_forced, m_cur_dst_y, m_cur_src_y, m_delay_x_resample, m_hi, m_intermediate_x, m_lo, m_Pclist_x, m_Pclist_y, m_Pdst_buf, m_Pscan_buf, m_Psrc_y_count, m_Psrc_y_flag, m_Ptmp_buf, m_resample_dst_x, m_resample_dst_y, m_resample_src_x, m_resample_src_y, m_status, make_clist(), MAX_SCAN_BUF_SIZE, Resampler::Contrib_List::n, name, NUM_FILTERS, resampler_assert, RESAMPLER_DEFAULT_FILTER, resampler_range_check(), Resampler::Scan_Buf::scan_buf_l, Resampler::Scan_Buf::scan_buf_y, STATUS_BAD_FILTER_NAME, STATUS_OKAY, STATUS_OUT_OF_MEMORY, support, and total_ops.

Here is the call graph for this function:

~Resampler()

Resampler::~Resampler

(

)

Definition at line 951 of file resampler.cpp.

References m_clist_x_forced, m_clist_y_forced, m_Pclist_x, m_Pclist_y, m_Pdst_buf, m_Pscan_buf, m_Psrc_y_count, m_Psrc_y_flag, m_Ptmp_buf, MAX_SCAN_BUF_SIZE, Resampler::Contrib_List::p, Resampler::Scan_Buf::scan_buf_l, and total_ops.

Resampler() [2/3]

Resampler::Resampler ( )

private

Resampler() [3/3]

Resampler::Resampler ( const Resampler &  o )

private

Member Function Documentation

clamp()

void Resampler::clamp ( Sample *  Pdst, int  n  )

private

Definition at line 778 of file resampler.cpp.

References clamp_sample().

Referenced by resample_y().

Here is the call graph for this function:

clamp_sample()

Resample_Real Resampler::clamp_sample ( Resample_Real  f ) const

inlineprivate

Definition at line 170 of file resampler.h.

References m_hi, and m_lo.

Referenced by clamp().

count_ops()

int Resampler::count_ops ( Contrib_List *  Pclist, int  k  )

inlineprivate

Definition at line 159 of file resampler.h.

Referenced by Resampler().

get_clist_x()

Contrib_List * Resampler::get_clist_x ( ) const

inline

Definition at line 83 of file resampler.h.

References m_Pclist_x.

get_clist_y()

Contrib_List * Resampler::get_clist_y ( ) const

inline

Definition at line 87 of file resampler.h.

References m_Pclist_y.

get_clists()

void Resampler::get_clists	(	Contrib_List **	ptr_clist_x,
		Contrib_List **	ptr_clist_y
	)

Definition at line 1219 of file resampler.cpp.

References m_Pclist_x, and m_Pclist_y.

get_filter_name()

char * Resampler::get_filter_name ( int  filter_num )

static

Definition at line 1233 of file resampler.cpp.

References g_filters, and NUM_FILTERS.

get_filter_num()

int Resampler::get_filter_num ( )

static

Definition at line 1228 of file resampler.cpp.

References NUM_FILTERS.

get_line()

const Resampler::Sample * Resampler::get_line

(

)

Definition at line 924 of file resampler.cpp.

References m_cur_dst_y, m_Pclist_y, m_Pdst_buf, m_Psrc_y_flag, m_resample_dst_y, m_resample_src_y, Resampler::Contrib_List::n, resample_y(), and resampler_range_check().

Referenced by decodeWaveletData().

Here is the call graph for this function:

make_clist()

Resampler::Contrib_List * Resampler::make_clist ( int  src_x, int  dst_x, Boundary_Op  boundary_op, Resample_Real(*)(Resample_Real)  Pfilter, Resample_Real  filter_support, Resample_Real  filter_scale, Resample_Real  src_ofs  )

private

Definition at line 439 of file resampler.cpp.

References cast_to_int(), date::ceil(), date::floor(), Resampler::Contrib_List::n, Resampler::Contrib_List::p, Resampler::Contrib::pixel, reflect(), resampler_assert, and Resampler::Contrib::weight.

Referenced by Resampler().

Here is the call graph for this function:

operator=()

Resampler & Resampler::operator= ( const Resampler &  o )

private

put_line()

bool Resampler::put_line

(

const Sample *

Psrc

)

Definition at line 848 of file resampler.cpp.

References m_cur_src_y, m_delay_x_resample, m_intermediate_x, m_Pscan_buf, m_Psrc_y_count, m_Psrc_y_flag, m_resample_dst_x, m_resample_src_x, m_resample_src_y, m_status, MAX_SCAN_BUF_SIZE, resample_x(), resampler_assert, resampler_range_check(), Resampler::Scan_Buf::scan_buf_l, Resampler::Scan_Buf::scan_buf_y, STATUS_OUT_OF_MEMORY, STATUS_SCAN_BUFFER_FULL, and TRUE.

Referenced by decodeWaveletData().

Here is the call graph for this function:

reflect()

int Resampler::reflect ( const int  j, const int  src_x, const Boundary_Op  boundary_op  )

private

Definition at line 399 of file resampler.cpp.

References BOUNDARY_REFLECT, BOUNDARY_WRAP, and posmod().

Referenced by make_clist().

Here is the call graph for this function:

resample_x()

void Resampler::resample_x ( Sample *  Pdst, const Sample *  Psrc  )

private

Definition at line 728 of file resampler.cpp.

References mu::isnan(), m_Pclist_x, m_resample_dst_x, Resampler::Contrib_List::n, Resampler::Contrib_List::p, Resampler::Contrib::pixel, resampler_assert, total_ops, and Resampler::Contrib::weight.

Referenced by put_line(), and resample_y().

Here is the call graph for this function:

resample_y()

void Resampler::resample_y ( Sample *  Pdst )

private

Definition at line 788 of file resampler.cpp.

References clamp(), FALSE, m_cur_dst_y, m_delay_x_resample, m_hi, m_intermediate_x, m_lo, m_Pclist_y, m_Pscan_buf, m_Psrc_y_count, m_Psrc_y_flag, m_Ptmp_buf, m_resample_dst_x, m_resample_src_y, MAX_SCAN_BUF_SIZE, Resampler::Contrib_List::n, Resampler::Contrib_List::p, Resampler::Contrib::pixel, resample_x(), resampler_assert, resampler_range_check(), scale_y_add(), scale_y_mov(), Resampler::Scan_Buf::scan_buf_l, Resampler::Scan_Buf::scan_buf_y, and Resampler::Contrib::weight.

Referenced by get_line().

Here is the call graph for this function:

restart()

void Resampler::restart

(

)

Definition at line 1002 of file resampler.cpp.

References FALSE, m_cur_dst_y, m_cur_src_y, m_Pclist_y, m_Pscan_buf, m_Psrc_y_count, m_Psrc_y_flag, m_resample_dst_y, m_resample_src_y, m_status, MAX_SCAN_BUF_SIZE, Resampler::Contrib_List::n, resampler_range_check(), Resampler::Scan_Buf::scan_buf_l, Resampler::Scan_Buf::scan_buf_y, and STATUS_OKAY.

Here is the call graph for this function:

scale_y_add()

void Resampler::scale_y_add ( Sample *  Ptmp, const Sample *  Psrc, Resample_Real  weight, int  dst_x  )

private

Definition at line 768 of file resampler.cpp.

References total_ops.

Referenced by resample_y().

scale_y_mov()

void Resampler::scale_y_mov ( Sample *  Ptmp, const Sample *  Psrc, Resample_Real  weight, int  dst_x  )

private

Definition at line 755 of file resampler.cpp.

References total_ops.

Referenced by resample_y().

status()

Status Resampler::status ( ) const

inline

Definition at line 76 of file resampler.h.

References m_status.

Member Data Documentation

m_boundary_op

Boundary_Op Resampler::m_boundary_op

private

Definition at line 112 of file resampler.h.

Referenced by Resampler().

m_clist_x_forced

bool Resampler::m_clist_x_forced

private

Definition at line 120 of file resampler.h.

Referenced by Resampler(), and ~Resampler().

m_clist_y_forced

bool Resampler::m_clist_y_forced

private

Definition at line 121 of file resampler.h.

Referenced by Resampler(), and ~Resampler().

m_cur_dst_y

int Resampler::m_cur_dst_y

private

Definition at line 140 of file resampler.h.

Referenced by get_line(), resample_y(), Resampler(), and restart().

m_cur_src_y

int Resampler::m_cur_src_y

private

Definition at line 139 of file resampler.h.

Referenced by put_line(), Resampler(), and restart().

m_delay_x_resample

bool Resampler::m_delay_x_resample

private

Definition at line 123 of file resampler.h.

Referenced by put_line(), resample_y(), and Resampler().

m_hi

Resample_Real Resampler::m_hi

private

Definition at line 168 of file resampler.h.

Referenced by clamp_sample(), resample_y(), and Resampler().

m_intermediate_x

int Resampler::m_intermediate_x

private

Definition at line 105 of file resampler.h.

Referenced by put_line(), resample_y(), and Resampler().

m_lo

Resample_Real Resampler::m_lo

private

Definition at line 167 of file resampler.h.

Referenced by clamp_sample(), resample_y(), and Resampler().

m_Pclist_x

Contrib_List* Resampler::m_Pclist_x

private

Definition at line 117 of file resampler.h.

Referenced by get_clist_x(), get_clists(), resample_x(), Resampler(), and ~Resampler().

m_Pclist_y

Contrib_List* Resampler::m_Pclist_y

private

Definition at line 118 of file resampler.h.

Referenced by get_clist_y(), get_clists(), get_line(), resample_y(), Resampler(), restart(), and ~Resampler().

m_Pdst_buf

Sample* Resampler::m_Pdst_buf

private

Definition at line 114 of file resampler.h.

Referenced by get_line(), Resampler(), and ~Resampler().

m_Pscan_buf

Scan_Buf* Resampler::m_Pscan_buf

private

Definition at line 137 of file resampler.h.

Referenced by put_line(), resample_y(), Resampler(), restart(), and ~Resampler().

m_Psrc_y_count

int* Resampler::m_Psrc_y_count

private

Definition at line 125 of file resampler.h.

Referenced by put_line(), resample_y(), Resampler(), restart(), and ~Resampler().

m_Psrc_y_flag

unsigned char* Resampler::m_Psrc_y_flag

private

Definition at line 126 of file resampler.h.

Referenced by get_line(), put_line(), resample_y(), Resampler(), restart(), and ~Resampler().

m_Ptmp_buf

Sample* Resampler::m_Ptmp_buf

private

Definition at line 115 of file resampler.h.

Referenced by resample_y(), Resampler(), and ~Resampler().

m_resample_dst_x

int Resampler::m_resample_dst_x

private

Definition at line 109 of file resampler.h.

Referenced by put_line(), resample_x(), resample_y(), and Resampler().

m_resample_dst_y

int Resampler::m_resample_dst_y

private

Definition at line 110 of file resampler.h.

Referenced by get_line(), Resampler(), and restart().

m_resample_src_x

int Resampler::m_resample_src_x

private

Definition at line 107 of file resampler.h.

Referenced by put_line(), and Resampler().

m_resample_src_y

int Resampler::m_resample_src_y

private

Definition at line 108 of file resampler.h.

Referenced by get_line(), put_line(), resample_y(), Resampler(), and restart().

m_status

Status Resampler::m_status

private

Definition at line 142 of file resampler.h.

Referenced by put_line(), Resampler(), restart(), and status().

total_ops

int Resampler::total_ops

private

Definition at line 102 of file resampler.h.

Referenced by resample_x(), Resampler(), scale_y_add(), scale_y_mov(), and ~Resampler().

---

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

• D:/CPP/numere-source/trunk/kernel/core/maths/resampler.h
• D:/CPP/numere-source/trunk/kernel/core/maths/resampler.cpp