ref: 7cdf839293bf3c0b5c3f52d368635156530ddf85
dir: /jas_seq.c/
/*
* Copyright (c) 1999-2000 Image Power, Inc. and the University of
* British Columbia.
* Copyright (c) 2001-2002 Michael David Adams.
* All rights reserved.
*/
/* __START_OF_JASPER_LICENSE__
*
* JasPer License Version 2.0
*
* Copyright (c) 2001-2006 Michael David Adams
* Copyright (c) 1999-2000 Image Power, Inc.
* Copyright (c) 1999-2000 The University of British Columbia
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person (the
* "User") obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, and/or sell copies of the Software, and to permit
* persons to whom the Software is furnished to do so, subject to the
* following conditions:
*
* 1. The above copyright notices and this permission notice (which
* includes the disclaimer below) shall be included in all copies or
* substantial portions of the Software.
*
* 2. The name of a copyright holder shall not be used to endorse or
* promote products derived from the Software without specific prior
* written permission.
*
* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
*
* __END_OF_JASPER_LICENSE__
*/
/*
* Sequence/Matrix Library
*
* $Id$
*/
/******************************************************************************\
* Includes.
\******************************************************************************/
#include "jasper/jas_seq.h"
#include "jasper/jas_malloc.h"
#include "jasper/jas_math.h"
/******************************************************************************\
* Constructors and destructors.
\******************************************************************************/
jas_matrix_t *jas_seq2d_create(jas_matind_t xstart, jas_matind_t ystart,
jas_matind_t xend, jas_matind_t yend)
{
jas_matrix_t *matrix;
assert(xstart <= xend && ystart <= yend);
if (!(matrix = jas_matrix_create(yend - ystart, xend - xstart))) {
return 0;
}
matrix->xstart_ = xstart;
matrix->ystart_ = ystart;
matrix->xend_ = xend;
matrix->yend_ = yend;
return matrix;
}
jas_matrix_t *jas_matrix_create(jas_matind_t numrows, jas_matind_t numcols)
{
jas_matrix_t *matrix;
jas_matind_t i;
size_t size;
if (numrows < 0 || numcols < 0) {
return NULL;
}
// matrix->datasize_ = numrows * numcols;
if (!jas_safe_size_mul(numrows, numcols, &size)) {
return NULL;
}
if (!(matrix = jas_malloc(sizeof(jas_matrix_t)))) {
return NULL;
}
matrix->flags_ = 0;
matrix->numrows_ = numrows;
matrix->numcols_ = numcols;
matrix->rows_ = 0;
matrix->maxrows_ = numrows;
matrix->data_ = 0;
matrix->datasize_ = size;
if (matrix->maxrows_ > 0) {
if (!(matrix->rows_ = jas_alloc2(matrix->maxrows_,
sizeof(jas_seqent_t *)))) {
goto error;
}
}
if (matrix->datasize_ > 0) {
if (!(matrix->data_ = jas_alloc2(matrix->datasize_,
sizeof(jas_seqent_t)))) {
goto error;
}
memset(matrix->data_, 0,
matrix->datasize_ * sizeof(jas_seqent_t));
}
for (i = 0; i < numrows; ++i) {
matrix->rows_[i] = &matrix->data_[i * matrix->numcols_];
}
matrix->xstart_ = 0;
matrix->ystart_ = 0;
matrix->xend_ = matrix->numcols_;
matrix->yend_ = matrix->numrows_;
return matrix;
error:
jas_matrix_destroy(matrix);
return 0;
}
void jas_matrix_destroy(jas_matrix_t *matrix)
{
if (matrix->data_) {
assert(!(matrix->flags_ & JAS_MATRIX_REF));
}
jas_free(matrix->data_);
jas_free(matrix->rows_);
jas_free(matrix);
}
jas_seq2d_t *jas_seq2d_copy(jas_seq2d_t *x)
{
jas_matrix_t *y;
jas_matind_t i;
jas_matind_t j;
y = jas_seq2d_create(jas_seq2d_xstart(x), jas_seq2d_ystart(x),
jas_seq2d_xend(x), jas_seq2d_yend(x));
assert(y);
for (i = 0; i < x->numrows_; ++i) {
for (j = 0; j < x->numcols_; ++j) {
*jas_matrix_getref(y, i, j) = jas_matrix_get(x, i, j);
}
}
return y;
}
jas_matrix_t *jas_matrix_copy(jas_matrix_t *x)
{
jas_matrix_t *y;
jas_matind_t i;
jas_matind_t j;
y = jas_matrix_create(x->numrows_, x->numcols_);
for (i = 0; i < x->numrows_; ++i) {
for (j = 0; j < x->numcols_; ++j) {
*jas_matrix_getref(y, i, j) = jas_matrix_get(x, i, j);
}
}
return y;
}
/******************************************************************************\
* Bind operations.
\******************************************************************************/
int jas_seq2d_bindsub(jas_matrix_t *s, jas_matrix_t *s1, jas_matind_t xstart,
jas_matind_t ystart, jas_matind_t xend, jas_matind_t yend)
{
if (xstart < s1->xstart_ || ystart < s1->ystart_ ||
xend > s1->xend_ || yend > s1->yend_)
return -1;
return jas_matrix_bindsub(s, s1, ystart - s1->ystart_, xstart - s1->xstart_,
yend - s1->ystart_ - 1, xend - s1->xstart_ - 1);
}
int jas_matrix_bindsub(jas_matrix_t *mat0, jas_matrix_t *mat1,
jas_matind_t r0, jas_matind_t c0, jas_matind_t r1, jas_matind_t c1)
{
jas_matind_t i;
if (mat0->data_) {
if (!(mat0->flags_ & JAS_MATRIX_REF)) {
jas_free(mat0->data_);
}
mat0->data_ = 0;
mat0->datasize_ = 0;
}
if (mat0->rows_) {
jas_free(mat0->rows_);
mat0->rows_ = 0;
}
mat0->flags_ |= JAS_MATRIX_REF;
mat0->numrows_ = r1 - r0 + 1;
mat0->numcols_ = c1 - c0 + 1;
mat0->maxrows_ = mat0->numrows_;
if (!(mat0->rows_ = jas_alloc2(mat0->maxrows_, sizeof(jas_seqent_t *)))) {
return -1;
}
for (i = 0; i < mat0->numrows_; ++i) {
mat0->rows_[i] = mat1->rows_[r0 + i] + c0;
}
mat0->xstart_ = mat1->xstart_ + c0;
mat0->ystart_ = mat1->ystart_ + r0;
mat0->xend_ = mat0->xstart_ + mat0->numcols_;
mat0->yend_ = mat0->ystart_ + mat0->numrows_;
return 0;
}
/******************************************************************************\
* Arithmetic operations.
\******************************************************************************/
int jas_matrix_cmp(jas_matrix_t *mat0, jas_matrix_t *mat1)
{
jas_matind_t i;
jas_matind_t j;
if (mat0->numrows_ != mat1->numrows_ || mat0->numcols_ !=
mat1->numcols_) {
return 1;
}
for (i = 0; i < mat0->numrows_; i++) {
for (j = 0; j < mat0->numcols_; j++) {
if (jas_matrix_get(mat0, i, j) != jas_matrix_get(mat1, i, j)) {
return 1;
}
}
}
return 0;
}
void jas_matrix_divpow2(jas_matrix_t *matrix, unsigned n)
{
jas_matind_t i;
jas_matind_t j;
jas_seqent_t *rowstart;
jas_matind_t rowstep;
jas_seqent_t *data;
if (jas_matrix_numrows(matrix) > 0 && jas_matrix_numcols(matrix) > 0) {
assert(matrix->rows_);
rowstep = jas_matrix_rowstep(matrix);
for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
rowstart += rowstep) {
for (j = matrix->numcols_, data = rowstart; j > 0; --j,
++data) {
*data = (*data >= 0) ? ((*data) >> n) :
(-((-(*data)) >> n));
}
}
}
}
void jas_matrix_clip(jas_matrix_t *matrix, jas_seqent_t minval,
jas_seqent_t maxval)
{
jas_matind_t i;
jas_matind_t j;
jas_seqent_t v;
jas_seqent_t *rowstart;
jas_seqent_t *data;
jas_matind_t rowstep;
if (jas_matrix_numrows(matrix) > 0 && jas_matrix_numcols(matrix) > 0) {
assert(matrix->rows_);
rowstep = jas_matrix_rowstep(matrix);
for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
rowstart += rowstep) {
for (j = matrix->numcols_, data = rowstart; j > 0; --j,
++data) {
v = *data;
if (v < minval) {
*data = minval;
} else if (v > maxval) {
*data = maxval;
}
}
}
}
}
void jas_matrix_asr(jas_matrix_t *matrix, unsigned n)
{
jas_matind_t i;
jas_matind_t j;
jas_seqent_t *rowstart;
jas_matind_t rowstep;
jas_seqent_t *data;
if (jas_matrix_numrows(matrix) > 0 && jas_matrix_numcols(matrix) > 0) {
assert(matrix->rows_);
rowstep = jas_matrix_rowstep(matrix);
for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
rowstart += rowstep) {
for (j = matrix->numcols_, data = rowstart; j > 0; --j,
++data) {
//*data >>= n;
*data = jas_seqent_asr(*data, n);
}
}
}
}
void jas_matrix_asl(jas_matrix_t *matrix, unsigned n)
{
jas_matind_t i;
jas_matind_t j;
jas_seqent_t *rowstart;
jas_matind_t rowstep;
jas_seqent_t *data;
if (jas_matrix_numrows(matrix) > 0 && jas_matrix_numcols(matrix) > 0) {
assert(matrix->rows_);
rowstep = jas_matrix_rowstep(matrix);
for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
rowstart += rowstep) {
for (j = matrix->numcols_, data = rowstart; j > 0; --j,
++data) {
//*data <<= n;
*data = jas_seqent_asl(*data, n);
}
}
}
}
/******************************************************************************\
* Code.
\******************************************************************************/
int jas_matrix_resize(jas_matrix_t *matrix, jas_matind_t numrows,
jas_matind_t numcols)
{
jas_matind_t size;
jas_matind_t i;
size = numrows * numcols;
if (size > matrix->datasize_ || numrows > matrix->maxrows_) {
return -1;
}
matrix->numrows_ = numrows;
matrix->numcols_ = numcols;
for (i = 0; i < numrows; ++i) {
matrix->rows_[i] = &matrix->data_[numcols * i];
}
return 0;
}
void jas_matrix_setall(jas_matrix_t *matrix, jas_seqent_t val)
{
jas_matind_t i;
jas_matind_t j;
jas_seqent_t *rowstart;
jas_matind_t rowstep;
jas_seqent_t *data;
if (jas_matrix_numrows(matrix) > 0 && jas_matrix_numcols(matrix) > 0) {
assert(matrix->rows_);
rowstep = jas_matrix_rowstep(matrix);
for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
rowstart += rowstep) {
for (j = matrix->numcols_, data = rowstart; j > 0; --j,
++data) {
*data = val;
}
}
}
}