invert.c File Reference
`#include "opj_includes.h"`

## Functions

static OPJ_BOOL | opj_lupDecompose (OPJ_FLOAT32 *matrix, OPJ_UINT32 *permutations, OPJ_FLOAT32 *p_swap_area, OPJ_UINT32 nb_compo)
| LUP decomposition.
static void | opj_lupSolve (OPJ_FLOAT32 *pResult, OPJ_FLOAT32 *pMatrix, OPJ_FLOAT32 *pVector, OPJ_UINT32 *pPermutations, OPJ_UINT32 nb_compo, OPJ_FLOAT32 *p_intermediate_data)
| LUP solving.
static void | opj_lupInvert (OPJ_FLOAT32 *pSrcMatrix, OPJ_FLOAT32 *pDestMatrix, OPJ_UINT32 nb_compo, OPJ_UINT32 *pPermutations, OPJ_FLOAT32 *p_src_temp, OPJ_FLOAT32 *p_dest_temp, OPJ_FLOAT32 *p_swap_area)
| LUP inversion (call with the result of lupDecompose).
OPJ_BOOL | opj_matrix_inversion_f (OPJ_FLOAT32 *pSrcMatrix, OPJ_FLOAT32 *pDestMatrix, OPJ_UINT32 nb_compo)
| Matrix inversion.

## Function Documentation

## opj_lupDecompose()

OPJ_BOOL opj_lupDecompose | ( | OPJ_FLOAT32 * | matrix,
|  | OPJ_UINT32 * | permutations,
|  | OPJ_FLOAT32 * | p_swap_area,
|  | OPJ_UINT32 | nb_compo )

static

LUP decomposition.

References OPJ_FALSE, and OPJ_TRUE.

Referenced by opj_matrix_inversion_f().

## opj_lupInvert()

void opj_lupInvert | ( | OPJ_FLOAT32 * | pSrcMatrix,
|  | OPJ_FLOAT32 * | pDestMatrix,
|  | OPJ_UINT32 | nb_compo,
|  | OPJ_UINT32 * | pPermutations,
|  | OPJ_FLOAT32 * | p_src_temp,
|  | OPJ_FLOAT32 * | p_dest_temp,
|  | OPJ_FLOAT32 * | p_swap_area )

static

LUP inversion (call with the result of lupDecompose).

References opj_lupSolve().

Referenced by opj_matrix_inversion_f().

## opj_lupSolve()

void opj_lupSolve | ( | OPJ_FLOAT32 * | pResult,
|  | OPJ_FLOAT32 * | pMatrix,
|  | OPJ_FLOAT32 * | pVector,
|  | OPJ_UINT32 * | pPermutations,
|  | OPJ_UINT32 | nb_compo,
|  | OPJ_FLOAT32 * | p_intermediate_data )

static

LUP solving.

Referenced by opj_lupInvert().

## opj_matrix_inversion_f()

OPJ_BOOL opj_matrix_inversion_f | ( | OPJ_FLOAT32 * | pSrcMatrix,
|  | OPJ_FLOAT32 * | pDestMatrix,
|  | OPJ_UINT32 | nb_compo )

Matrix inversion.

Calculates a n x n double matrix inversion with a LUP method.

References OPJ_FALSE, opj_free(), opj_lupDecompose(), opj_lupInvert(), opj_malloc(), and OPJ_TRUE.

Referenced by opj_j2k_setup_encoder().