454 lines
13 KiB
C
454 lines
13 KiB
C
/*
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* Copyright (c) 1999-2000 Image Power, Inc. and the University of
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* British Columbia.
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* Copyright (c) 2001-2002 Michael David Adams.
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* All rights reserved.
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*/
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/* __START_OF_JASPER_LICENSE__
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*
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* JasPer License Version 2.0
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*
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* Copyright (c) 2001-2006 Michael David Adams
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* Copyright (c) 1999-2000 Image Power, Inc.
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* Copyright (c) 1999-2000 The University of British Columbia
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*
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person (the
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* "User") obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, and/or sell copies of the Software, and to permit
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* persons to whom the Software is furnished to do so, subject to the
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* following conditions:
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*
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* 1. The above copyright notices and this permission notice (which
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* includes the disclaimer below) shall be included in all copies or
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* substantial portions of the Software.
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*
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* 2. The name of a copyright holder shall not be used to endorse or
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* promote products derived from the Software without specific prior
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* written permission.
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*
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* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
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* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
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* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
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* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
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* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
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* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
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* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
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* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
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* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
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* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
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* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
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* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
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* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
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* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
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* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
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* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
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* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
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* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
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* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
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* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
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* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
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* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
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* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
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* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
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* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
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*
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* __END_OF_JASPER_LICENSE__
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*/
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/*
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* Sequence/Matrix Library
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*
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* $Id: jas_seq.c,v 1.2 2008-05-26 09:40:52 vp153 Exp $
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*/
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/******************************************************************************\
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* Includes.
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\******************************************************************************/
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#include <stdlib.h>
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#include <assert.h>
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#include <math.h>
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#include "jasper/jas_seq.h"
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#include "jasper/jas_malloc.h"
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#include "jasper/jas_math.h"
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/******************************************************************************\
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* Constructors and destructors.
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\******************************************************************************/
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jas_matrix_t *jas_seq2d_create(int xstart, int ystart, int xend, int yend)
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{
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jas_matrix_t *matrix;
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assert(xstart <= xend && ystart <= yend);
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if (!(matrix = jas_matrix_create(yend - ystart, xend - xstart))) {
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return 0;
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}
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matrix->xstart_ = xstart;
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matrix->ystart_ = ystart;
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matrix->xend_ = xend;
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matrix->yend_ = yend;
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return matrix;
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}
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jas_matrix_t *jas_matrix_create(int numrows, int numcols)
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{
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jas_matrix_t *matrix;
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int i;
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if (!(matrix = jas_malloc(sizeof(jas_matrix_t)))) {
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return 0;
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}
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matrix->flags_ = 0;
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matrix->numrows_ = numrows;
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matrix->numcols_ = numcols;
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matrix->rows_ = 0;
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matrix->maxrows_ = numrows;
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matrix->data_ = 0;
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matrix->datasize_ = numrows * numcols;
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if (matrix->maxrows_ > 0) {
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if (!(matrix->rows_ = jas_alloc2(matrix->maxrows_,
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sizeof(jas_seqent_t *)))) {
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jas_matrix_destroy(matrix);
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return 0;
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}
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}
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if (matrix->datasize_ > 0) {
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if (!(matrix->data_ = jas_alloc2(matrix->datasize_,
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sizeof(jas_seqent_t)))) {
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jas_matrix_destroy(matrix);
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return 0;
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}
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}
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for (i = 0; i < numrows; ++i) {
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matrix->rows_[i] = &matrix->data_[i * matrix->numcols_];
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}
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for (i = 0; i < matrix->datasize_; ++i) {
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matrix->data_[i] = 0;
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}
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matrix->xstart_ = 0;
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matrix->ystart_ = 0;
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matrix->xend_ = matrix->numcols_;
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matrix->yend_ = matrix->numrows_;
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return matrix;
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}
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void jas_matrix_destroy(jas_matrix_t *matrix)
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{
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if (matrix->data_) {
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assert(!(matrix->flags_ & JAS_MATRIX_REF));
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jas_free(matrix->data_);
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matrix->data_ = 0;
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}
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if (matrix->rows_) {
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jas_free(matrix->rows_);
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matrix->rows_ = 0;
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}
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jas_free(matrix);
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}
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jas_seq2d_t *jas_seq2d_copy(jas_seq2d_t *x)
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{
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jas_matrix_t *y;
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int i;
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int j;
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y = jas_seq2d_create(jas_seq2d_xstart(x), jas_seq2d_ystart(x), jas_seq2d_xend(x),
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jas_seq2d_yend(x));
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assert(y);
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for (i = 0; i < x->numrows_; ++i) {
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for (j = 0; j < x->numcols_; ++j) {
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*jas_matrix_getref(y, i, j) = jas_matrix_get(x, i, j);
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}
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}
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return y;
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}
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jas_matrix_t *jas_matrix_copy(jas_matrix_t *x)
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{
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jas_matrix_t *y;
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int i;
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int j;
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y = jas_matrix_create(x->numrows_, x->numcols_);
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for (i = 0; i < x->numrows_; ++i) {
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for (j = 0; j < x->numcols_; ++j) {
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*jas_matrix_getref(y, i, j) = jas_matrix_get(x, i, j);
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}
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}
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return y;
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}
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/******************************************************************************\
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* Bind operations.
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\******************************************************************************/
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void jas_seq2d_bindsub(jas_matrix_t *s, jas_matrix_t *s1, int xstart, int ystart,
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int xend, int yend)
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{
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jas_matrix_bindsub(s, s1, ystart - s1->ystart_, xstart - s1->xstart_,
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yend - s1->ystart_ - 1, xend - s1->xstart_ - 1);
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}
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void jas_matrix_bindsub(jas_matrix_t *mat0, jas_matrix_t *mat1, int r0, int c0,
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int r1, int c1)
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{
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int i;
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if (mat0->data_) {
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if (!(mat0->flags_ & JAS_MATRIX_REF)) {
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jas_free(mat0->data_);
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}
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mat0->data_ = 0;
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mat0->datasize_ = 0;
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}
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if (mat0->rows_) {
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jas_free(mat0->rows_);
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mat0->rows_ = 0;
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}
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mat0->flags_ |= JAS_MATRIX_REF;
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mat0->numrows_ = r1 - r0 + 1;
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mat0->numcols_ = c1 - c0 + 1;
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mat0->maxrows_ = mat0->numrows_;
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mat0->rows_ = jas_alloc2(mat0->maxrows_, sizeof(jas_seqent_t *));
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for (i = 0; i < mat0->numrows_; ++i) {
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mat0->rows_[i] = mat1->rows_[r0 + i] + c0;
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}
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mat0->xstart_ = mat1->xstart_ + c0;
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mat0->ystart_ = mat1->ystart_ + r0;
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mat0->xend_ = mat0->xstart_ + mat0->numcols_;
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mat0->yend_ = mat0->ystart_ + mat0->numrows_;
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}
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/******************************************************************************\
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* Arithmetic operations.
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\******************************************************************************/
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int jas_matrix_cmp(jas_matrix_t *mat0, jas_matrix_t *mat1)
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{
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int i;
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int j;
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if (mat0->numrows_ != mat1->numrows_ || mat0->numcols_ !=
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mat1->numcols_) {
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return 1;
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}
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for (i = 0; i < mat0->numrows_; i++) {
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for (j = 0; j < mat0->numcols_; j++) {
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if (jas_matrix_get(mat0, i, j) != jas_matrix_get(mat1, i, j)) {
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return 1;
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}
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}
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}
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return 0;
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}
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void jas_matrix_divpow2(jas_matrix_t *matrix, int n)
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{
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int i;
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int j;
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jas_seqent_t *rowstart;
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int rowstep;
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jas_seqent_t *data;
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rowstep = jas_matrix_rowstep(matrix);
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for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
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rowstart += rowstep) {
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for (j = matrix->numcols_, data = rowstart; j > 0; --j,
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++data) {
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*data = (*data >= 0) ? ((*data) >> n) :
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(-((-(*data)) >> n));
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}
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}
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}
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void jas_matrix_clip(jas_matrix_t *matrix, jas_seqent_t minval, jas_seqent_t maxval)
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{
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int i;
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int j;
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jas_seqent_t v;
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jas_seqent_t *rowstart;
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jas_seqent_t *data;
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int rowstep;
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rowstep = jas_matrix_rowstep(matrix);
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for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
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rowstart += rowstep) {
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data = rowstart;
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for (j = matrix->numcols_, data = rowstart; j > 0; --j,
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++data) {
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v = *data;
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if (v < minval) {
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*data = minval;
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} else if (v > maxval) {
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*data = maxval;
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}
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}
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}
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}
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void jas_matrix_asr(jas_matrix_t *matrix, int n)
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{
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int i;
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int j;
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jas_seqent_t *rowstart;
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int rowstep;
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jas_seqent_t *data;
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assert(n >= 0);
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rowstep = jas_matrix_rowstep(matrix);
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for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
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rowstart += rowstep) {
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for (j = matrix->numcols_, data = rowstart; j > 0; --j,
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++data) {
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*data >>= n;
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}
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}
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}
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void jas_matrix_asl(jas_matrix_t *matrix, int n)
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{
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int i;
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int j;
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jas_seqent_t *rowstart;
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int rowstep;
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jas_seqent_t *data;
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rowstep = jas_matrix_rowstep(matrix);
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for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
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rowstart += rowstep) {
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for (j = matrix->numcols_, data = rowstart; j > 0; --j,
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++data) {
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*data <<= n;
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}
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}
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}
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/******************************************************************************\
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* Code.
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\******************************************************************************/
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int jas_matrix_resize(jas_matrix_t *matrix, int numrows, int numcols)
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{
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int size;
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int i;
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size = numrows * numcols;
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if (size > matrix->datasize_ || numrows > matrix->maxrows_) {
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return -1;
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}
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matrix->numrows_ = numrows;
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matrix->numcols_ = numcols;
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for (i = 0; i < numrows; ++i) {
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matrix->rows_[i] = &matrix->data_[numcols * i];
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}
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return 0;
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}
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void jas_matrix_setall(jas_matrix_t *matrix, jas_seqent_t val)
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{
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int i;
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int j;
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jas_seqent_t *rowstart;
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int rowstep;
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jas_seqent_t *data;
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rowstep = jas_matrix_rowstep(matrix);
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for (i = matrix->numrows_, rowstart = matrix->rows_[0]; i > 0; --i,
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rowstart += rowstep) {
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for (j = matrix->numcols_, data = rowstart; j > 0; --j,
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++data) {
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*data = val;
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}
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}
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}
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jas_matrix_t *jas_seq2d_input(FILE *in)
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{
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jas_matrix_t *matrix;
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int i;
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int j;
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long x;
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int numrows;
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int numcols;
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int xoff;
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int yoff;
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if (fscanf(in, "%d %d", &xoff, &yoff) != 2)
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return 0;
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if (fscanf(in, "%d %d", &numcols, &numrows) != 2)
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return 0;
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if (!(matrix = jas_seq2d_create(xoff, yoff, xoff + numcols, yoff + numrows)))
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return 0;
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if (jas_matrix_numrows(matrix) != numrows || jas_matrix_numcols(matrix) != numcols) {
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abort();
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}
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/* Get matrix data. */
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for (i = 0; i < jas_matrix_numrows(matrix); i++) {
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for (j = 0; j < jas_matrix_numcols(matrix); j++) {
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if (fscanf(in, "%ld", &x) != 1) {
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jas_matrix_destroy(matrix);
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return 0;
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}
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jas_matrix_set(matrix, i, j, JAS_CAST(jas_seqent_t, x));
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}
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}
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return matrix;
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}
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int jas_seq2d_output(jas_matrix_t *matrix, FILE *out)
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{
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#define MAXLINELEN 80
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int i;
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int j;
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jas_seqent_t x;
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char buf[MAXLINELEN + 1];
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char sbuf[MAXLINELEN + 1];
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int n;
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fprintf(out, "%d %d\n", (int)jas_seq2d_xstart(matrix),
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(int)jas_seq2d_ystart(matrix));
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fprintf(out, "%d %d\n", (int)jas_matrix_numcols(matrix),
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(int)jas_matrix_numrows(matrix));
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buf[0] = '\0';
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for (i = 0; i < jas_matrix_numrows(matrix); ++i) {
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for (j = 0; j < jas_matrix_numcols(matrix); ++j) {
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x = jas_matrix_get(matrix, i, j);
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sprintf(sbuf, "%s%4ld", (strlen(buf) > 0) ? " " : "",
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JAS_CAST(long, x));
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n = strlen(buf);
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if (n + strlen(sbuf) > MAXLINELEN) {
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fputs(buf, out);
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fputs("\n", out);
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buf[0] = '\0';
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}
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strcat(buf, sbuf);
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if (j == jas_matrix_numcols(matrix) - 1) {
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fputs(buf, out);
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fputs("\n", out);
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buf[0] = '\0';
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}
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}
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}
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fputs(buf, out);
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return 0;
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}
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