init - 初始化项目
This commit is contained in:
Lee Nony
194
3rdparty/libjasper/jpc_util.c
vendored
Normal file
194
3rdparty/libjasper/jpc_util.c
vendored
Normal file
@@ -0,0 +1,194 @@
|
||||
/*
|
||||
* Copyright (c) 1999-2000 Image Power, Inc. and the University of
|
||||
* British Columbia.
|
||||
* Copyright (c) 2001-2003 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__
|
||||
*/
|
||||
|
||||
/*
|
||||
* $Id: jpc_util.c,v 1.2 2008-05-26 09:40:52 vp153 Exp $
|
||||
*/
|
||||
|
||||
/******************************************************************************\
|
||||
* Includes
|
||||
\******************************************************************************/
|
||||
|
||||
#include <assert.h>
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
#include <math.h>
|
||||
#include <stdlib.h>
|
||||
#include <stdarg.h>
|
||||
|
||||
#include "jasper/jas_math.h"
|
||||
#include "jasper/jas_malloc.h"
|
||||
|
||||
#include "jpc_fix.h"
|
||||
#include "jpc_cs.h"
|
||||
#include "jpc_flt.h"
|
||||
#include "jpc_util.h"
|
||||
|
||||
/******************************************************************************\
|
||||
* Miscellaneous Functions
|
||||
\******************************************************************************/
|
||||
|
||||
int jpc_atoaf(char *s, int *numvalues, double **values)
|
||||
{
|
||||
static char delim[] = ", \t\n";
|
||||
char buf[4096];
|
||||
int n;
|
||||
double *vs;
|
||||
char *cp;
|
||||
|
||||
strncpy(buf, s, sizeof(buf));
|
||||
buf[sizeof(buf) - 1] = '\0';
|
||||
n = 0;
|
||||
if ((cp = strtok(buf, delim))) {
|
||||
++n;
|
||||
while ((cp = strtok(0, delim))) {
|
||||
if (cp != '\0') {
|
||||
++n;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (n) {
|
||||
if (!(vs = jas_alloc2(n, sizeof(double)))) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
strncpy(buf, s, sizeof(buf));
|
||||
buf[sizeof(buf) - 1] = '\0';
|
||||
n = 0;
|
||||
if ((cp = strtok(buf, delim))) {
|
||||
vs[n] = atof(cp);
|
||||
++n;
|
||||
while ((cp = strtok(0, delim))) {
|
||||
if (cp != '\0') {
|
||||
vs[n] = atof(cp);
|
||||
++n;
|
||||
}
|
||||
}
|
||||
}
|
||||
} else {
|
||||
vs = 0;
|
||||
}
|
||||
|
||||
*numvalues = n;
|
||||
*values = vs;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
jas_seq_t *jpc_seq_upsample(jas_seq_t *x, int m)
|
||||
{
|
||||
jas_seq_t *z;
|
||||
int i;
|
||||
|
||||
if (!(z = jas_seq_create(jas_seq_start(x) * m, (jas_seq_end(x) - 1) * m + 1)))
|
||||
return 0;
|
||||
for (i = jas_seq_start(z); i < jas_seq_end(z); i++) {
|
||||
*jas_seq_getref(z, i) = (!JAS_MOD(i, m)) ? jas_seq_get(x, i / m) :
|
||||
jpc_inttofix(0);
|
||||
}
|
||||
|
||||
return z;
|
||||
}
|
||||
|
||||
jpc_fix_t jpc_seq_norm(jas_seq_t *x)
|
||||
{
|
||||
jpc_fix_t s;
|
||||
int i;
|
||||
|
||||
s = jpc_inttofix(0);
|
||||
for (i = jas_seq_start(x); i < jas_seq_end(x); i++) {
|
||||
s = jpc_fix_add(s, jpc_fix_mul(jas_seq_get(x, i), jas_seq_get(x, i)));
|
||||
}
|
||||
|
||||
return jpc_dbltofix(sqrt(jpc_fixtodbl(s)));
|
||||
}
|
||||
|
||||
jas_seq_t *jpc_seq_conv(jas_seq_t *x, jas_seq_t *y)
|
||||
{
|
||||
int i;
|
||||
int j;
|
||||
int k;
|
||||
jas_seq_t *z;
|
||||
jpc_fix_t s;
|
||||
jpc_fix_t v;
|
||||
|
||||
z = jas_seq_create(jas_seq_start(x) + jas_seq_start(y),
|
||||
jas_seq_end(x) + jas_seq_end(y) - 1);
|
||||
assert(z);
|
||||
for (i = jas_seq_start(z); i < jas_seq_end(z); i++) {
|
||||
s = jpc_inttofix(0);
|
||||
for (j = jas_seq_start(y); j < jas_seq_end(y); j++) {
|
||||
k = i - j;
|
||||
if (k < jas_seq_start(x) || k >= jas_seq_end(x)) {
|
||||
v = JPC_FIX_ZERO;
|
||||
} else {
|
||||
v = jas_seq_get(x, k);
|
||||
}
|
||||
s = jpc_fix_add(s, jpc_fix_mul(jas_seq_get(y, j), v));
|
||||
}
|
||||
*jas_seq_getref(z, i) = s;
|
||||
}
|
||||
|
||||
return z;
|
||||
}
|
||||
Reference in New Issue
Block a user