WebSVN - AndroidProjects - Rev 244 - /tools/osframework/source/ImageLib/jpeg2000/jpc

/*
* 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 Software License
*
* IMAGE POWER JPEG-2000 PUBLIC LICENSE
* ************************************
*
* GRANT:
*
* Permission is hereby granted, free of charge, to any person (the "User")
* obtaining a copy of this software and associated documentation, to deal
* in the JasPer Software without restriction, including without limitation
* the right to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the JasPer Software (in source and binary forms),
* and to permit persons to whom the JasPer Software is furnished to do so,
* provided further that the License Conditions below are met.
*
* License Conditions
* ******************
*
* A. Redistributions of source code must retain the above copyright notice,
* and this list of conditions, and the following disclaimer.
*
* B. Redistributions in binary form must reproduce the above copyright
* notice, and this list of conditions, and the following disclaimer in
* the documentation and/or other materials provided with the distribution.
*
* C. Neither the name of Image Power, Inc. nor any other contributor
* (including, but not limited to, the University of British Columbia and
* Michael David Adams) may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* D. User agrees that it shall not commence any action against Image Power,
* Inc., the University of British Columbia, Michael David Adams, or any
* other contributors (collectively "Licensors") for infringement of any
* intellectual property rights ("IPR") held by the User in respect of any
* technology that User owns or has a right to license or sublicense and
* which is an element required in order to claim compliance with ISO/IEC
* 15444-1 (i.e., JPEG-2000 Part 1). "IPR" means all intellectual property
* rights worldwide arising under statutory or common law, and whether
* or not perfected, including, without limitation, all (i) patents and
* patent applications owned or licensable by User; (ii) rights associated
* with works of authorship including copyrights, copyright applications,
* copyright registrations, mask work rights, mask work applications,
* mask work registrations; (iii) rights relating to the protection of
* trade secrets and confidential information; (iv) any right analogous
* to those set forth in subsections (i), (ii), or (iii) and any other
* proprietary rights relating to intangible property (other than trademark,
* trade dress, or service mark rights); and (v) divisions, continuations,
* renewals, reissues and extensions of the foregoing (as and to the extent
* applicable) now existing, hereafter filed, issued or acquired.
*
* E. If User commences an infringement action against any Licensor(s) then
* such Licensor(s) shall have the right to terminate User's license and
* all sublicenses that have been granted hereunder by User to other parties.
*
* F. This software is for use only in hardware or software products that
* are compliant with ISO/IEC 15444-1 (i.e., JPEG-2000 Part 1). No license
* or right to this Software is granted for products that do not comply
* with ISO/IEC 15444-1. The JPEG-2000 Part 1 standard can be purchased
* from the ISO.
*
* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS LICENSE.
* NO USE OF THE JASPER SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
* THIS DISCLAIMER. THE JASPER SOFTWARE IS PROVIDED BY THE LICENSORS AND
* CONTRIBUTORS UNDER THIS LICENSE ON AN ``AS-IS'' BASIS, WITHOUT WARRANTY
* OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, WITHOUT LIMITATION,
* WARRANTIES THAT THE JASPER SOFTWARE IS FREE OF DEFECTS, IS MERCHANTABLE,
* IS FIT FOR A PARTICULAR PURPOSE OR IS NON-INFRINGING. THOSE INTENDING
* TO USE THE JASPER SOFTWARE OR MODIFICATIONS THEREOF FOR USE IN HARDWARE
* OR SOFTWARE PRODUCTS ARE ADVISED THAT THEIR USE MAY INFRINGE EXISTING
* PATENTS, COPYRIGHTS, TRADEMARKS, OR OTHER INTELLECTUAL PROPERTY RIGHTS.
* THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE JASPER SOFTWARE
* IS WITH THE USER. SHOULD ANY PART OF THE JASPER SOFTWARE PROVE DEFECTIVE
* IN ANY RESPECT, THE USER (AND NOT THE INITIAL DEVELOPERS, THE UNIVERSITY
* OF BRITISH COLUMBIA, IMAGE POWER, INC., MICHAEL DAVID ADAMS, OR ANY
* OTHER CONTRIBUTOR) SHALL ASSUME THE COST OF ANY NECESSARY SERVICING,
* REPAIR OR CORRECTION. UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY,
* WHETHER TORT (INCLUDING NEGLIGENCE), CONTRACT, OR OTHERWISE, SHALL THE
* INITIAL DEVELOPER, THE UNIVERSITY OF BRITISH COLUMBIA, IMAGE POWER, INC.,
* MICHAEL DAVID ADAMS, ANY OTHER CONTRIBUTOR, OR ANY DISTRIBUTOR OF THE
* JASPER SOFTWARE, OR ANY SUPPLIER OF ANY OF SUCH PARTIES, BE LIABLE TO
* THE USER OR ANY OTHER PERSON FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR
* CONSEQUENTIAL DAMAGES OF ANY CHARACTER INCLUDING, WITHOUT LIMITATION,
* DAMAGES FOR LOSS OF GOODWILL, WORK STOPPAGE, COMPUTER FAILURE OR
* MALFUNCTION, OR ANY AND ALL OTHER COMMERCIAL DAMAGES OR LOSSES, EVEN IF
* SUCH PARTY HAD BEEN INFORMED, OR OUGHT TO HAVE KNOWN, OF THE POSSIBILITY
* OF SUCH DAMAGES. THE JASPER SOFTWARE AND UNDERLYING TECHNOLOGY ARE NOT
* FAULT-TOLERANT AND ARE NOT DESIGNED, MANUFACTURED OR INTENDED FOR USE OR
* RESALE AS ON-LINE CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING
* FAIL-SAFE PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES,
* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT
* LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE
* JASPER SOFTWARE OR UNDERLYING TECHNOLOGY OR PRODUCT COULD LEAD DIRECTLY
* TO DEATH, PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE
* ("HIGH RISK ACTIVITIES"). LICENSOR SPECIFICALLY DISCLAIMS ANY EXPRESS
* OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES. USER WILL NOT
* KNOWINGLY USE, DISTRIBUTE OR RESELL THE JASPER SOFTWARE OR UNDERLYING
* TECHNOLOGY OR PRODUCTS FOR HIGH RISK ACTIVITIES AND WILL ENSURE THAT ITS
* CUSTOMERS AND END-USERS OF ITS PRODUCTS ARE PROVIDED WITH A COPY OF THE
* NOTICE SPECIFIED IN THIS SECTION.
*
* __END_OF_JASPER_LICENSE__
*/

/*
* Multicomponent Transform Code
*
* $Id: jpc_mct.c,v 1.1 2003/05/15 01:30:32 ace Exp $
*/

/******************************************************************************\
* Includes.
\******************************************************************************/

#include <assert.h>

#include "jas_seq.h"

#include "jpc_fix.h"
#include "jpc_mct.h"

/******************************************************************************\
* Code.
\******************************************************************************/

/* Compute the forward RCT. */

void jpc_rct(jas_matrix_t *c0, jas_matrix_t *c1, jas_matrix_t *c2)
{
int numrows;
int numcols;
int i;
int j;
jpc_fix_t *c0p;
jpc_fix_t *c1p;
jpc_fix_t *c2p;

numrows = jas_matrix_numrows(c0);
numcols = jas_matrix_numcols(c0);

/* All three matrices must have the same dimensions. */
assert(jas_matrix_numrows(c1) == numrows && jas_matrix_numcols(c1) == numcols
&& jas_matrix_numrows(c2) == numrows && jas_matrix_numcols(c2) == numcols);

for (i = 0; i < numrows; i++) {
c0p = jas_matrix_getref(c0, i, 0);
c1p = jas_matrix_getref(c1, i, 0);
c2p = jas_matrix_getref(c2, i, 0);
for (j = numcols; j > 0; --j) {
int r;
int g;
int b;
int y;
int u;
int v;
r = *c0p;
g = *c1p;
b = *c2p;
y = (r + (g << 1) + b) >> 2;
u = b - g;
v = r - g;
*c0p++ = y;
*c1p++ = u;
*c2p++ = v;
}
}
}

/* Compute the inverse RCT. */

void jpc_irct(jas_matrix_t *c0, jas_matrix_t *c1, jas_matrix_t *c2)
{
int numrows;
int numcols;
int i;
int j;
jpc_fix_t *c0p;
jpc_fix_t *c1p;
jpc_fix_t *c2p;

numrows = jas_matrix_numrows(c0);
numcols = jas_matrix_numcols(c0);

/* All three matrices must have the same dimensions. */
assert(jas_matrix_numrows(c1) == numrows && jas_matrix_numcols(c1) == numcols
&& jas_matrix_numrows(c2) == numrows && jas_matrix_numcols(c2) == numcols);

for (i = 0; i < numrows; i++) {
c0p = jas_matrix_getref(c0, i, 0);
c1p = jas_matrix_getref(c1, i, 0);
c2p = jas_matrix_getref(c2, i, 0);
for (j = numcols; j > 0; --j) {
int r;
int g;
int b;
int y;
int u;
int v;
y = *c0p;
u = *c1p;
v = *c2p;
g = y - ((u + v) >> 2);
r = v + g;
b = u + g;
*c0p++ = r;
*c1p++ = g;
*c2p++ = b;
}
}
}

void jpc_ict(jas_matrix_t *c0, jas_matrix_t *c1, jas_matrix_t *c2)
{
int numrows;
int numcols;
int i;
int j;
jpc_fix_t r;
jpc_fix_t g;
jpc_fix_t b;
jpc_fix_t y;
jpc_fix_t u;
jpc_fix_t v;
jpc_fix_t *c0p;
jpc_fix_t *c1p;
jpc_fix_t *c2p;

numrows = jas_matrix_numrows(c0);
assert(jas_matrix_numrows(c1) == numrows && jas_matrix_numrows(c2) == numrows);
numcols = jas_matrix_numcols(c0);
assert(jas_matrix_numcols(c1) == numcols && jas_matrix_numcols(c2) == numcols);
for (i = 0; i < numrows; ++i) {
c0p = jas_matrix_getref(c0, i, 0);
c1p = jas_matrix_getref(c1, i, 0);
c2p = jas_matrix_getref(c2, i, 0);
for (j = numcols; j > 0; --j) {
r = *c0p;
g = *c1p;
b = *c2p;
y = jpc_fix_add3(jpc_fix_mul(jpc_dbltofix(0.299), r), jpc_fix_mul(jpc_dbltofix(0.587), g),
jpc_fix_mul(jpc_dbltofix(0.114), b));
u = jpc_fix_add3(jpc_fix_mul(jpc_dbltofix(-0.16875), r), jpc_fix_mul(jpc_dbltofix(-0.33126), g),
jpc_fix_mul(jpc_dbltofix(0.5), b));
v = jpc_fix_add3(jpc_fix_mul(jpc_dbltofix(0.5), r), jpc_fix_mul(jpc_dbltofix(-0.41869), g),
jpc_fix_mul(jpc_dbltofix(-0.08131), b));
*c0p++ = y;
*c1p++ = u;
*c2p++ = v;
}
}
}

void jpc_iict(jas_matrix_t *c0, jas_matrix_t *c1, jas_matrix_t *c2)
{
int numrows;
int numcols;
int i;
int j;
jpc_fix_t r;
jpc_fix_t g;
jpc_fix_t b;
jpc_fix_t y;
jpc_fix_t u;
jpc_fix_t v;
jpc_fix_t *c0p;
jpc_fix_t *c1p;
jpc_fix_t *c2p;

numrows = jas_matrix_numrows(c0);
assert(jas_matrix_numrows(c1) == numrows && jas_matrix_numrows(c2) == numrows);
numcols = jas_matrix_numcols(c0);
assert(jas_matrix_numcols(c1) == numcols && jas_matrix_numcols(c2) == numcols);
for (i = 0; i < numrows; ++i) {
c0p = jas_matrix_getref(c0, i, 0);
c1p = jas_matrix_getref(c1, i, 0);
c2p = jas_matrix_getref(c2, i, 0);
for (j = numcols; j > 0; --j) {
y = *c0p;
u = *c1p;
v = *c2p;
r = jpc_fix_add(y, jpc_fix_mul(jpc_dbltofix(1.402), v));
g = jpc_fix_add3(y, jpc_fix_mul(jpc_dbltofix(-0.34413), u),
jpc_fix_mul(jpc_dbltofix(-0.71414), v));
b = jpc_fix_add(y, jpc_fix_mul(jpc_dbltofix(1.772), u));
*c0p++ = r;
*c1p++ = g;
*c2p++ = b;
}
}
}

jpc_fix_t jpc_mct_getsynweight(int mctid, int cmptno)
{
jpc_fix_t synweight;

synweight = JPC_FIX_ONE;
switch (mctid) {
case JPC_MCT_RCT:
switch (cmptno) {
case 0:
synweight = jpc_dbltofix(sqrt(3.0));
break;
case 1:
synweight = jpc_dbltofix(sqrt(0.6875));
break;
case 2:
synweight = jpc_dbltofix(sqrt(0.6875));
break;
}
break;
case JPC_MCT_ICT:
switch (cmptno) {
case 0:
synweight = jpc_dbltofix(sqrt(3.0000));
break;
case 1:
synweight = jpc_dbltofix(sqrt(3.2584));
break;
case 2:
synweight = jpc_dbltofix(sqrt(2.4755));
break;
}
break;
#if 0
default:
synweight = JPC_FIX_ONE;
break;
#endif
}

return synweight;
}

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(root)/tools/osframework/source/ImageLib/jpeg2000/jpc_mct.c @ 373 - Rev 244