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Diffstat (limited to 'osframework/source/ImageLib/jpeg2000/jpc_mct.c')
| -rw-r--r-- | osframework/source/ImageLib/jpeg2000/jpc_mct.c | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/osframework/source/ImageLib/jpeg2000/jpc_mct.c b/osframework/source/ImageLib/jpeg2000/jpc_mct.c new file mode 100644 index 0000000..50432a3 --- /dev/null +++ b/osframework/source/ImageLib/jpeg2000/jpc_mct.c @@ -0,0 +1,340 @@ +/*
+ * 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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