diff options
Diffstat (limited to 'src/3rdparty/jasper/src/libjasper/jpc/jpc_qmfb.c')
| -rw-r--r-- | src/3rdparty/jasper/src/libjasper/jpc/jpc_qmfb.c | 3143 |
1 files changed, 0 insertions, 3143 deletions
diff --git a/src/3rdparty/jasper/src/libjasper/jpc/jpc_qmfb.c b/src/3rdparty/jasper/src/libjasper/jpc/jpc_qmfb.c deleted file mode 100644 index 99a5ff5..0000000 --- a/src/3rdparty/jasper/src/libjasper/jpc/jpc_qmfb.c +++ /dev/null @@ -1,3143 +0,0 @@ -/* - * 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__ - */ - -/* - * Quadrature Mirror-Image Filter Bank (QMFB) Library - * - * $Id$ - */ - -/******************************************************************************\ -* -\******************************************************************************/ - -#undef WT_LENONE /* This is not needed due to normalization. */ -#define WT_DOSCALE - -/******************************************************************************\ -* Includes. -\******************************************************************************/ - -#include <assert.h> -#include "jasper/jas_fix.h" -#include "jasper/jas_malloc.h" -#include "jasper/jas_math.h" - -#include "jpc_qmfb.h" -#include "jpc_tsfb.h" -#include "jpc_math.h" - -/******************************************************************************\ -* -\******************************************************************************/ - -#define QMFB_SPLITBUFSIZE 4096 -#define QMFB_JOINBUFSIZE 4096 - -int jpc_ft_analyze(jpc_fix_t *a, int xstart, int ystart, int width, int height, - int stride); -int jpc_ft_synthesize(int *a, int xstart, int ystart, int width, int height, - int stride); - -int jpc_ns_analyze(jpc_fix_t *a, int xstart, int ystart, int width, int height, - int stride); -int jpc_ns_synthesize(jpc_fix_t *a, int xstart, int ystart, int width, - int height, int stride); - -void jpc_ft_fwdlift_row(jpc_fix_t *a, int numcols, int parity); -void jpc_ft_fwdlift_col(jpc_fix_t *a, int numrows, int stride, - int parity); -void jpc_ft_fwdlift_colgrp(jpc_fix_t *a, int numrows, int stride, - int parity); -void jpc_ft_fwdlift_colres(jpc_fix_t *a, int numrows, int numcols, - int stride, int parity); - -void jpc_ft_invlift_row(jpc_fix_t *a, int numcols, int parity); -void jpc_ft_invlift_col(jpc_fix_t *a, int numrows, int stride, - int parity); -void jpc_ft_invlift_colgrp(jpc_fix_t *a, int numrows, int stride, - int parity); -void jpc_ft_invlift_colres(jpc_fix_t *a, int numrows, int numcols, - int stride, int parity); - -void jpc_ns_fwdlift_row(jpc_fix_t *a, int numcols, int parity); -void jpc_ns_fwdlift_colgrp(jpc_fix_t *a, int numrows, int stride, int parity); -void jpc_ns_fwdlift_colres(jpc_fix_t *a, int numrows, int numcols, int stride, - int parity); -void jpc_ns_invlift_row(jpc_fix_t *a, int numcols, int parity); -void jpc_ns_invlift_colgrp(jpc_fix_t *a, int numrows, int stride, int parity); -void jpc_ns_invlift_colres(jpc_fix_t *a, int numrows, int numcols, int stride, - int parity); - -void jpc_qmfb_split_row(jpc_fix_t *a, int numcols, int parity); -void jpc_qmfb_split_col(jpc_fix_t *a, int numrows, int stride, int parity); -void jpc_qmfb_split_colgrp(jpc_fix_t *a, int numrows, int stride, int parity); -void jpc_qmfb_split_colres(jpc_fix_t *a, int numrows, int numcols, int stride, - int parity); - -void jpc_qmfb_join_row(jpc_fix_t *a, int numcols, int parity); -void jpc_qmfb_join_col(jpc_fix_t *a, int numrows, int stride, int parity); -void jpc_qmfb_join_colgrp(jpc_fix_t *a, int numrows, int stride, int parity); -void jpc_qmfb_join_colres(jpc_fix_t *a, int numrows, int numcols, int stride, - int parity); - -double jpc_ft_lpenergywts[32] = { - 1.2247448713915889, - 1.6583123951776999, - 2.3184046238739260, - 3.2691742076555053, - 4.6199296531440819, - 6.5323713152269596, - 9.2377452606141937, - 13.0639951297449581, - 18.4752262333915667, - 26.1278968190610392, - 36.9504194305524791, - 52.2557819580462777, - 73.9008347315741645, - 104.5115624560829133, - 147.8016689469569656, - 209.0231247296646018, - 295.6033378293900000, - 418.0462494347059419, - 591.2066756503630813, - 836.0924988714708661, - /* approximations */ - 836.0924988714708661, - 836.0924988714708661, - 836.0924988714708661, - 836.0924988714708661, - 836.0924988714708661, - 836.0924988714708661, - 836.0924988714708661, - 836.0924988714708661, - 836.0924988714708661, - 836.0924988714708661, - 836.0924988714708661, - 836.0924988714708661 -}; - -double jpc_ft_hpenergywts[32] = { - 0.8477912478906585, - 0.9601432184835760, - 1.2593401049756179, - 1.7444107171191079, - 2.4538713036750726, - 3.4656517695088755, - 4.8995276398597856, - 6.9283970402160842, - 9.7980274940131444, - 13.8564306871112652, - 19.5959265076535587, - 27.7128159494245487, - 39.1918369552045860, - 55.4256262207444053, - 78.3836719028959124, - 110.8512517317256822, - 156.7673435548526868, - 221.7025033739244293, - 313.5346870787551552, - 443.4050067351659550, - /* approximations */ - 443.4050067351659550, - 443.4050067351659550, - 443.4050067351659550, - 443.4050067351659550, - 443.4050067351659550, - 443.4050067351659550, - 443.4050067351659550, - 443.4050067351659550, - 443.4050067351659550, - 443.4050067351659550, - 443.4050067351659550, - 443.4050067351659550 -}; - -double jpc_ns_lpenergywts[32] = { - 1.4021081679297411, - 2.0303718560817923, - 2.9011625562785555, - 4.1152851751758002, - 5.8245108637728071, - 8.2387599345725171, - 11.6519546479210838, - 16.4785606470644375, - 23.3042776444606794, - 32.9572515613740435, - 46.6086013487782793, - 65.9145194076860861, - 93.2172084551803977, - 131.8290408510004283, - 186.4344176300625691, - 263.6580819564562148, - 372.8688353500955373, - 527.3161639447193920, - 745.7376707114038936, - 1054.6323278917823245, - /* approximations follow */ - 1054.6323278917823245, - 1054.6323278917823245, - 1054.6323278917823245, - 1054.6323278917823245, - 1054.6323278917823245, - 1054.6323278917823245, - 1054.6323278917823245, - 1054.6323278917823245, - 1054.6323278917823245, - 1054.6323278917823245, - 1054.6323278917823245, - 1054.6323278917823245 -}; - -double jpc_ns_hpenergywts[32] = { - 1.4425227650161456, - 1.9669426082455688, - 2.8839248082788891, - 4.1475208393432981, - 5.8946497530677817, - 8.3471789178590949, - 11.8086046551047463, - 16.7012780415647804, - 23.6196657032246620, - 33.4034255108592362, - 47.2396388881632632, - 66.8069597416714061, - 94.4793162154500692, - 133.6139330736999113, - 188.9586372358249378, - 267.2278678461869390, - 377.9172750722391356, - 534.4557359047058753, - 755.8345502191498326, - 1068.9114718353569060, - /* approximations follow */ - 1068.9114718353569060, - 1068.9114718353569060, - 1068.9114718353569060, - 1068.9114718353569060, - 1068.9114718353569060, - 1068.9114718353569060, - 1068.9114718353569060, - 1068.9114718353569060, - 1068.9114718353569060, - 1068.9114718353569060, - 1068.9114718353569060 -}; - -jpc_qmfb2d_t jpc_ft_qmfb2d = { - jpc_ft_analyze, - jpc_ft_synthesize, - jpc_ft_lpenergywts, - jpc_ft_hpenergywts -}; - -jpc_qmfb2d_t jpc_ns_qmfb2d = { - jpc_ns_analyze, - jpc_ns_synthesize, - jpc_ns_lpenergywts, - jpc_ns_hpenergywts -}; - -/******************************************************************************\ -* generic -\******************************************************************************/ - -void jpc_qmfb_split_row(jpc_fix_t *a, int numcols, int parity) -{ - - int bufsize = JPC_CEILDIVPOW2(numcols, 1); -#if !defined(HAVE_VLA) - jpc_fix_t splitbuf[QMFB_SPLITBUFSIZE]; -#else - jpc_fix_t splitbuf[bufsize]; -#endif - jpc_fix_t *buf = splitbuf; - register jpc_fix_t *srcptr; - register jpc_fix_t *dstptr; - register int n; - register int m; - int hstartcol; - -#if !defined(HAVE_VLA) - /* Get a buffer. */ - if (bufsize > QMFB_SPLITBUFSIZE) { - if (!(buf = jas_malloc(bufsize * sizeof(jpc_fix_t)))) { - /* We have no choice but to commit suicide in this case. */ - abort(); - } - } -#endif - - if (numcols >= 2) { - hstartcol = (numcols + 1 - parity) >> 1; - m = (parity) ? hstartcol : (numcols - hstartcol); - /* Save the samples destined for the highpass channel. */ - n = m; - dstptr = buf; - srcptr = &a[1 - parity]; - while (n-- > 0) { - *dstptr = *srcptr; - ++dstptr; - srcptr += 2; - } - /* Copy the appropriate samples into the lowpass channel. */ - dstptr = &a[1 - parity]; - srcptr = &a[2 - parity]; - n = numcols - m - (!parity); - while (n-- > 0) { - *dstptr = *srcptr; - ++dstptr; - srcptr += 2; - } - /* Copy the saved samples into the highpass channel. */ - dstptr = &a[hstartcol]; - srcptr = buf; - n = m; - while (n-- > 0) { - *dstptr = *srcptr; - ++dstptr; - ++srcptr; - } - } - -#if !defined(HAVE_VLA) - /* If the split buffer was allocated on the heap, free this memory. */ - if (buf != splitbuf) { - jas_free(buf); - } -#endif - -} - -void jpc_qmfb_split_col(jpc_fix_t *a, int numrows, int stride, - int parity) -{ - - int bufsize = JPC_CEILDIVPOW2(numrows, 1); -#if !defined(HAVE_VLA) - jpc_fix_t splitbuf[QMFB_SPLITBUFSIZE]; -#else - jpc_fix_t splitbuf[bufsize]; -#endif - jpc_fix_t *buf = splitbuf; - register jpc_fix_t *srcptr; - register jpc_fix_t *dstptr; - register int n; - register int m; - int hstartcol; - -#if !defined(HAVE_VLA) - /* Get a buffer. */ - if (bufsize > QMFB_SPLITBUFSIZE) { - if (!(buf = jas_malloc(bufsize * sizeof(jpc_fix_t)))) { - /* We have no choice but to commit suicide in this case. */ - abort(); - } - } -#endif - - if (numrows >= 2) { - hstartcol = (numrows + 1 - parity) >> 1; - m = (parity) ? hstartcol : (numrows - hstartcol); - /* Save the samples destined for the highpass channel. */ - n = m; - dstptr = buf; - srcptr = &a[(1 - parity) * stride]; - while (n-- > 0) { - *dstptr = *srcptr; - ++dstptr; - srcptr += stride << 1; - } - /* Copy the appropriate samples into the lowpass channel. */ - dstptr = &a[(1 - parity) * stride]; - srcptr = &a[(2 - parity) * stride]; - n = numrows - m - (!parity); - while (n-- > 0) { - *dstptr = *srcptr; - dstptr += stride; - srcptr += stride << 1; - } - /* Copy the saved samples into the highpass channel. */ - dstptr = &a[hstartcol * stride]; - srcptr = buf; - n = m; - while (n-- > 0) { - *dstptr = *srcptr; - dstptr += stride; - ++srcptr; - } - } - -#if !defined(HAVE_VLA) - /* If the split buffer was allocated on the heap, free this memory. */ - if (buf != splitbuf) { - jas_free(buf); - } -#endif - -} - -void jpc_qmfb_split_colgrp(jpc_fix_t *a, int numrows, int stride, - int parity) -{ - - int bufsize = JPC_CEILDIVPOW2(numrows, 1); -#if !defined(HAVE_VLA) - jpc_fix_t splitbuf[QMFB_SPLITBUFSIZE * JPC_QMFB_COLGRPSIZE]; -#else - jpc_fix_t splitbuf[bufsize * JPC_QMFB_COLGRPSIZE]; -#endif - jpc_fix_t *buf = splitbuf; - jpc_fix_t *srcptr; - jpc_fix_t *dstptr; - register jpc_fix_t *srcptr2; - register jpc_fix_t *dstptr2; - register int n; - register int i; - int m; - int hstartcol; - -#if !defined(HAVE_VLA) - /* Get a buffer. */ - if (bufsize > QMFB_SPLITBUFSIZE) { - if (!(buf = jas_malloc(bufsize * sizeof(jpc_fix_t)))) { - /* We have no choice but to commit suicide in this case. */ - abort(); - } - } -#endif - - if (numrows >= 2) { - hstartcol = (numrows + 1 - parity) >> 1; - m = (parity) ? hstartcol : (numrows - hstartcol); - /* Save the samples destined for the highpass channel. */ - n = m; - dstptr = buf; - srcptr = &a[(1 - parity) * stride]; - while (n-- > 0) { - dstptr2 = dstptr; - srcptr2 = srcptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - *dstptr2 = *srcptr2; - ++dstptr2; - ++srcptr2; - } - dstptr += JPC_QMFB_COLGRPSIZE; - srcptr += stride << 1; - } - /* Copy the appropriate samples into the lowpass channel. */ - dstptr = &a[(1 - parity) * stride]; - srcptr = &a[(2 - parity) * stride]; - n = numrows - m - (!parity); - while (n-- > 0) { - dstptr2 = dstptr; - srcptr2 = srcptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - *dstptr2 = *srcptr2; - ++dstptr2; - ++srcptr2; - } - dstptr += stride; - srcptr += stride << 1; - } - /* Copy the saved samples into the highpass channel. */ - dstptr = &a[hstartcol * stride]; - srcptr = buf; - n = m; - while (n-- > 0) { - dstptr2 = dstptr; - srcptr2 = srcptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - *dstptr2 = *srcptr2; - ++dstptr2; - ++srcptr2; - } - dstptr += stride; - srcptr += JPC_QMFB_COLGRPSIZE; - } - } - -#if !defined(HAVE_VLA) - /* If the split buffer was allocated on the heap, free this memory. */ - if (buf != splitbuf) { - jas_free(buf); - } -#endif - -} - -void jpc_qmfb_split_colres(jpc_fix_t *a, int numrows, int numcols, - int stride, int parity) -{ - - int bufsize = JPC_CEILDIVPOW2(numrows, 1); -#if !defined(HAVE_VLA) - jpc_fix_t splitbuf[QMFB_SPLITBUFSIZE * JPC_QMFB_COLGRPSIZE]; -#else - jpc_fix_t splitbuf[bufsize * numcols]; -#endif - jpc_fix_t *buf = splitbuf; - jpc_fix_t *srcptr; - jpc_fix_t *dstptr; - register jpc_fix_t *srcptr2; - register jpc_fix_t *dstptr2; - register int n; - register int i; - int m; - int hstartcol; - -#if !defined(HAVE_VLA) - /* Get a buffer. */ - if (bufsize > QMFB_SPLITBUFSIZE) { - if (!(buf = jas_malloc(bufsize * sizeof(jpc_fix_t)))) { - /* We have no choice but to commit suicide in this case. */ - abort(); - } - } -#endif - - if (numrows >= 2) { - hstartcol = (numrows + 1 - parity) >> 1; - m = (parity) ? hstartcol : (numrows - hstartcol); - /* Save the samples destined for the highpass channel. */ - n = m; - dstptr = buf; - srcptr = &a[(1 - parity) * stride]; - while (n-- > 0) { - dstptr2 = dstptr; - srcptr2 = srcptr; - for (i = 0; i < numcols; ++i) { - *dstptr2 = *srcptr2; - ++dstptr2; - ++srcptr2; - } - dstptr += numcols; - srcptr += stride << 1; - } - /* Copy the appropriate samples into the lowpass channel. */ - dstptr = &a[(1 - parity) * stride]; - srcptr = &a[(2 - parity) * stride]; - n = numrows - m - (!parity); - while (n-- > 0) { - dstptr2 = dstptr; - srcptr2 = srcptr; - for (i = 0; i < numcols; ++i) { - *dstptr2 = *srcptr2; - ++dstptr2; - ++srcptr2; - } - dstptr += stride; - srcptr += stride << 1; - } - /* Copy the saved samples into the highpass channel. */ - dstptr = &a[hstartcol * stride]; - srcptr = buf; - n = m; - while (n-- > 0) { - dstptr2 = dstptr; - srcptr2 = srcptr; - for (i = 0; i < numcols; ++i) { - *dstptr2 = *srcptr2; - ++dstptr2; - ++srcptr2; - } - dstptr += stride; - srcptr += numcols; - } - } - -#if !defined(HAVE_VLA) - /* If the split buffer was allocated on the heap, free this memory. */ - if (buf != splitbuf) { - jas_free(buf); - } -#endif - -} - -void jpc_qmfb_join_row(jpc_fix_t *a, int numcols, int parity) -{ - - int bufsize = JPC_CEILDIVPOW2(numcols, 1); -#if !defined(HAVE_VLA) - jpc_fix_t joinbuf[QMFB_JOINBUFSIZE]; -#else - jpc_fix_t joinbuf[bufsize]; -#endif - jpc_fix_t *buf = joinbuf; - register jpc_fix_t *srcptr; - register jpc_fix_t *dstptr; - register int n; - int hstartcol; - -#if !defined(HAVE_VLA) - /* Allocate memory for the join buffer from the heap. */ - if (bufsize > QMFB_JOINBUFSIZE) { - if (!(buf = jas_malloc(bufsize * sizeof(jpc_fix_t)))) { - /* We have no choice but to commit suicide. */ - abort(); - } - } -#endif - - hstartcol = (numcols + 1 - parity) >> 1; - - /* Save the samples from the lowpass channel. */ - n = hstartcol; - srcptr = &a[0]; - dstptr = buf; - while (n-- > 0) { - *dstptr = *srcptr; - ++srcptr; - ++dstptr; - } - /* Copy the samples from the highpass channel into place. */ - srcptr = &a[hstartcol]; - dstptr = &a[1 - parity]; - n = numcols - hstartcol; - while (n-- > 0) { - *dstptr = *srcptr; - dstptr += 2; - ++srcptr; - } - /* Copy the samples from the lowpass channel into place. */ - srcptr = buf; - dstptr = &a[parity]; - n = hstartcol; - while (n-- > 0) { - *dstptr = *srcptr; - dstptr += 2; - ++srcptr; - } - -#if !defined(HAVE_VLA) - /* If the join buffer was allocated on the heap, free this memory. */ - if (buf != joinbuf) { - jas_free(buf); - } -#endif - -} - -void jpc_qmfb_join_col(jpc_fix_t *a, int numrows, int stride, - int parity) -{ - - int bufsize = JPC_CEILDIVPOW2(numrows, 1); -#if !defined(HAVE_VLA) - jpc_fix_t joinbuf[QMFB_JOINBUFSIZE]; -#else - jpc_fix_t joinbuf[bufsize]; -#endif - jpc_fix_t *buf = joinbuf; - register jpc_fix_t *srcptr; - register jpc_fix_t *dstptr; - register int n; - int hstartcol; - -#if !defined(HAVE_VLA) - /* Allocate memory for the join buffer from the heap. */ - if (bufsize > QMFB_JOINBUFSIZE) { - if (!(buf = jas_malloc(bufsize * sizeof(jpc_fix_t)))) { - /* We have no choice but to commit suicide. */ - abort(); - } - } -#endif - - hstartcol = (numrows + 1 - parity) >> 1; - - /* Save the samples from the lowpass channel. */ - n = hstartcol; - srcptr = &a[0]; - dstptr = buf; - while (n-- > 0) { - *dstptr = *srcptr; - srcptr += stride; - ++dstptr; - } - /* Copy the samples from the highpass channel into place. */ - srcptr = &a[hstartcol * stride]; - dstptr = &a[(1 - parity) * stride]; - n = numrows - hstartcol; - while (n-- > 0) { - *dstptr = *srcptr; - dstptr += 2 * stride; - srcptr += stride; - } - /* Copy the samples from the lowpass channel into place. */ - srcptr = buf; - dstptr = &a[parity * stride]; - n = hstartcol; - while (n-- > 0) { - *dstptr = *srcptr; - dstptr += 2 * stride; - ++srcptr; - } - -#if !defined(HAVE_VLA) - /* If the join buffer was allocated on the heap, free this memory. */ - if (buf != joinbuf) { - jas_free(buf); - } -#endif - -} - -void jpc_qmfb_join_colgrp(jpc_fix_t *a, int numrows, int stride, - int parity) -{ - - int bufsize = JPC_CEILDIVPOW2(numrows, 1); -#if !defined(HAVE_VLA) - jpc_fix_t joinbuf[QMFB_JOINBUFSIZE * JPC_QMFB_COLGRPSIZE]; -#else - jpc_fix_t joinbuf[bufsize * JPC_QMFB_COLGRPSIZE]; -#endif - jpc_fix_t *buf = joinbuf; - jpc_fix_t *srcptr; - jpc_fix_t *dstptr; - register jpc_fix_t *srcptr2; - register jpc_fix_t *dstptr2; - register int n; - register int i; - int hstartcol; - -#if !defined(HAVE_VLA) - /* Allocate memory for the join buffer from the heap. */ - if (bufsize > QMFB_JOINBUFSIZE) { - if (!(buf = jas_malloc(bufsize * JPC_QMFB_COLGRPSIZE * sizeof(jpc_fix_t)))) { - /* We have no choice but to commit suicide. */ - abort(); - } - } -#endif - - hstartcol = (numrows + 1 - parity) >> 1; - - /* Save the samples from the lowpass channel. */ - n = hstartcol; - srcptr = &a[0]; - dstptr = buf; - while (n-- > 0) { - dstptr2 = dstptr; - srcptr2 = srcptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - *dstptr2 = *srcptr2; - ++dstptr2; - ++srcptr2; - } - srcptr += stride; - dstptr += JPC_QMFB_COLGRPSIZE; - } - /* Copy the samples from the highpass channel into place. */ - srcptr = &a[hstartcol * stride]; - dstptr = &a[(1 - parity) * stride]; - n = numrows - hstartcol; - while (n-- > 0) { - dstptr2 = dstptr; - srcptr2 = srcptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - *dstptr2 = *srcptr2; - ++dstptr2; - ++srcptr2; - } - dstptr += 2 * stride; - srcptr += stride; - } - /* Copy the samples from the lowpass channel into place. */ - srcptr = buf; - dstptr = &a[parity * stride]; - n = hstartcol; - while (n-- > 0) { - dstptr2 = dstptr; - srcptr2 = srcptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - *dstptr2 = *srcptr2; - ++dstptr2; - ++srcptr2; - } - dstptr += 2 * stride; - srcptr += JPC_QMFB_COLGRPSIZE; - } - -#if !defined(HAVE_VLA) - /* If the join buffer was allocated on the heap, free this memory. */ - if (buf != joinbuf) { - jas_free(buf); - } -#endif - -} - -void jpc_qmfb_join_colres(jpc_fix_t *a, int numrows, int numcols, - int stride, int parity) -{ - - int bufsize = JPC_CEILDIVPOW2(numrows, 1); -#if !defined(HAVE_VLA) - jpc_fix_t joinbuf[QMFB_JOINBUFSIZE * JPC_QMFB_COLGRPSIZE]; -#else - jpc_fix_t joinbuf[bufsize * numcols]; -#endif - jpc_fix_t *buf = joinbuf; - jpc_fix_t *srcptr; - jpc_fix_t *dstptr; - register jpc_fix_t *srcptr2; - register jpc_fix_t *dstptr2; - register int n; - register int i; - int hstartcol; - -#if !defined(HAVE_VLA) - /* Allocate memory for the join buffer from the heap. */ - if (bufsize > QMFB_JOINBUFSIZE) { - if (!(buf = jas_malloc(bufsize * numcols * sizeof(jpc_fix_t)))) { - /* We have no choice but to commit suicide. */ - abort(); - } - } -#endif - - hstartcol = (numrows + 1 - parity) >> 1; - - /* Save the samples from the lowpass channel. */ - n = hstartcol; - srcptr = &a[0]; - dstptr = buf; - while (n-- > 0) { - dstptr2 = dstptr; - srcptr2 = srcptr; - for (i = 0; i < numcols; ++i) { - *dstptr2 = *srcptr2; - ++dstptr2; - ++srcptr2; - } - srcptr += stride; - dstptr += numcols; - } - /* Copy the samples from the highpass channel into place. */ - srcptr = &a[hstartcol * stride]; - dstptr = &a[(1 - parity) * stride]; - n = numrows - hstartcol; - while (n-- > 0) { - dstptr2 = dstptr; - srcptr2 = srcptr; - for (i = 0; i < numcols; ++i) { - *dstptr2 = *srcptr2; - ++dstptr2; - ++srcptr2; - } - dstptr += 2 * stride; - srcptr += stride; - } - /* Copy the samples from the lowpass channel into place. */ - srcptr = buf; - dstptr = &a[parity * stride]; - n = hstartcol; - while (n-- > 0) { - dstptr2 = dstptr; - srcptr2 = srcptr; - for (i = 0; i < numcols; ++i) { - *dstptr2 = *srcptr2; - ++dstptr2; - ++srcptr2; - } - dstptr += 2 * stride; - srcptr += numcols; - } - -#if !defined(HAVE_VLA) - /* If the join buffer was allocated on the heap, free this memory. */ - if (buf != joinbuf) { - jas_free(buf); - } -#endif - -} - -/******************************************************************************\ -* 5/3 transform -\******************************************************************************/ - -void jpc_ft_fwdlift_row(jpc_fix_t *a, int numcols, int parity) -{ - - register jpc_fix_t *lptr; - register jpc_fix_t *hptr; - register int n; - int llen; - - llen = (numcols + 1 - parity) >> 1; - - if (numcols > 1) { - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen]; - if (parity) { - hptr[0] -= lptr[0]; - ++hptr; - } - n = numcols - llen - parity - (parity == (numcols & 1)); - while (n-- > 0) { - hptr[0] -= (lptr[0] + lptr[1]) >> 1; - ++hptr; - ++lptr; - } - if (parity == (numcols & 1)) { - hptr[0] -= lptr[0]; - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen]; - if (!parity) { - lptr[0] += (hptr[0] + 1) >> 1; - ++lptr; - } - n = llen - (!parity) - (parity != (numcols & 1)); - while (n-- > 0) { - lptr[0] += (hptr[0] + hptr[1] + 2) >> 2; - ++lptr; - ++hptr; - } - if (parity != (numcols & 1)) { - lptr[0] += (hptr[0] + 1) >> 1; - } - - } else { - - if (parity) { - lptr = &a[0]; - lptr[0] <<= 1; - } - - } - -} - -void jpc_ft_fwdlift_col(jpc_fix_t *a, int numrows, int stride, int parity) -{ - - jpc_fix_t *lptr; - jpc_fix_t *hptr; -#if 0 - register jpc_fix_t *lptr2; - register jpc_fix_t *hptr2; - register int i; -#endif - register int n; - int llen; - - llen = (numrows + 1 - parity) >> 1; - - if (numrows > 1) { - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - hptr[0] -= lptr[0]; - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - hptr[0] -= (lptr[0] + lptr[stride]) >> 1; - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - hptr[0] -= lptr[0]; - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr[0] += (hptr[0] + 1) >> 1; - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr[0] += (hptr[0] + hptr[stride] + 2) >> 2; - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr[0] += (hptr[0] + 1) >> 1; - } - - } else { - - if (parity) { - lptr = &a[0]; - lptr[0] <<= 1; - } - - } - -} - -void jpc_ft_fwdlift_colgrp(jpc_fix_t *a, int numrows, int stride, int parity) -{ - - jpc_fix_t *lptr; - jpc_fix_t *hptr; - register jpc_fix_t *lptr2; - register jpc_fix_t *hptr2; - register int n; - register int i; - int llen; - - llen = (numrows + 1 - parity) >> 1; - - if (numrows > 1) { - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - hptr2[0] -= lptr2[0]; - ++hptr2; - ++lptr2; - } - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - hptr2[0] -= (lptr2[0] + lptr2[stride]) >> 1; - ++lptr2; - ++hptr2; - } - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - hptr2[0] -= lptr2[0]; - ++lptr2; - ++hptr2; - } - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - lptr2[0] += (hptr2[0] + 1) >> 1; - ++lptr2; - ++hptr2; - } - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - lptr2[0] += (hptr2[0] + hptr2[stride] + 2) >> 2; - ++lptr2; - ++hptr2; - } - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - lptr2[0] += (hptr2[0] + 1) >> 1; - ++lptr2; - ++hptr2; - } - } - - } else { - - if (parity) { - lptr2 = &a[0]; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - lptr2[0] <<= 1; - ++lptr2; - } - } - - } - -} - -void jpc_ft_fwdlift_colres(jpc_fix_t *a, int numrows, int numcols, int stride, - int parity) -{ - - jpc_fix_t *lptr; - jpc_fix_t *hptr; - register jpc_fix_t *lptr2; - register jpc_fix_t *hptr2; - register int n; - register int i; - int llen; - - llen = (numrows + 1 - parity) >> 1; - - if (numrows > 1) { - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - hptr2[0] -= lptr2[0]; - ++hptr2; - ++lptr2; - } - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - hptr2[0] -= (lptr2[0] + lptr2[stride]) >> 1; - ++lptr2; - ++hptr2; - } - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - hptr2[0] -= lptr2[0]; - ++lptr2; - ++hptr2; - } - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - lptr2[0] += (hptr2[0] + 1) >> 1; - ++lptr2; - ++hptr2; - } - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - lptr2[0] += (hptr2[0] + hptr2[stride] + 2) >> 2; - ++lptr2; - ++hptr2; - } - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - lptr2[0] += (hptr2[0] + 1) >> 1; - ++lptr2; - ++hptr2; - } - } - - } else { - - if (parity) { - lptr2 = &a[0]; - for (i = 0; i < numcols; ++i) { - lptr2[0] <<= 1; - ++lptr2; - } - } - - } - -} - -void jpc_ft_invlift_row(jpc_fix_t *a, int numcols, int parity) -{ - - register jpc_fix_t *lptr; - register jpc_fix_t *hptr; - register int n; - int llen; - - llen = (numcols + 1 - parity) >> 1; - - if (numcols > 1) { - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen]; - if (!parity) { - lptr[0] -= (hptr[0] + 1) >> 1; - ++lptr; - } - n = llen - (!parity) - (parity != (numcols & 1)); - while (n-- > 0) { - lptr[0] -= (hptr[0] + hptr[1] + 2) >> 2; - ++lptr; - ++hptr; - } - if (parity != (numcols & 1)) { - lptr[0] -= (hptr[0] + 1) >> 1; - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen]; - if (parity) { - hptr[0] += lptr[0]; - ++hptr; - } - n = numcols - llen - parity - (parity == (numcols & 1)); - while (n-- > 0) { - hptr[0] += (lptr[0] + lptr[1]) >> 1; - ++hptr; - ++lptr; - } - if (parity == (numcols & 1)) { - hptr[0] += lptr[0]; - } - - } else { - - if (parity) { - lptr = &a[0]; - lptr[0] >>= 1; - } - - } - -} - -void jpc_ft_invlift_col(jpc_fix_t *a, int numrows, int stride, int parity) -{ - - jpc_fix_t *lptr; - jpc_fix_t *hptr; -#if 0 - register jpc_fix_t *lptr2; - register jpc_fix_t *hptr2; - register int i; -#endif - register int n; - int llen; - - llen = (numrows + 1 - parity) >> 1; - - if (numrows > 1) { - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr[0] -= (hptr[0] + 1) >> 1; - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr[0] -= (hptr[0] + hptr[stride] + 2) >> 2; - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr[0] -= (hptr[0] + 1) >> 1; - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - hptr[0] += lptr[0]; - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - hptr[0] += (lptr[0] + lptr[stride]) >> 1; - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - hptr[0] += lptr[0]; - } - - } else { - - if (parity) { - lptr = &a[0]; - lptr[0] >>= 1; - } - - } - -} - -void jpc_ft_invlift_colgrp(jpc_fix_t *a, int numrows, int stride, int parity) -{ - - jpc_fix_t *lptr; - jpc_fix_t *hptr; - register jpc_fix_t *lptr2; - register jpc_fix_t *hptr2; - register int n; - register int i; - int llen; - - llen = (numrows + 1 - parity) >> 1; - - if (numrows > 1) { - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - lptr2[0] -= (hptr2[0] + 1) >> 1; - ++lptr2; - ++hptr2; - } - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - lptr2[0] -= (hptr2[0] + hptr2[stride] + 2) >> 2; - ++lptr2; - ++hptr2; - } - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - lptr2[0] -= (hptr2[0] + 1) >> 1; - ++lptr2; - ++hptr2; - } - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - hptr2[0] += lptr2[0]; - ++hptr2; - ++lptr2; - } - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - hptr2[0] += (lptr2[0] + lptr2[stride]) >> 1; - ++lptr2; - ++hptr2; - } - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - hptr2[0] += lptr2[0]; - ++lptr2; - ++hptr2; - } - } - - } else { - - if (parity) { - lptr2 = &a[0]; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - lptr2[0] >>= 1; - ++lptr2; - } - } - - } - -} - -void jpc_ft_invlift_colres(jpc_fix_t *a, int numrows, int numcols, int stride, - int parity) -{ - - jpc_fix_t *lptr; - jpc_fix_t *hptr; - register jpc_fix_t *lptr2; - register jpc_fix_t *hptr2; - register int n; - register int i; - int llen; - - llen = (numrows + 1 - parity) >> 1; - - if (numrows > 1) { - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - lptr2[0] -= (hptr2[0] + 1) >> 1; - ++lptr2; - ++hptr2; - } - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - lptr2[0] -= (hptr2[0] + hptr2[stride] + 2) >> 2; - ++lptr2; - ++hptr2; - } - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - lptr2[0] -= (hptr2[0] + 1) >> 1; - ++lptr2; - ++hptr2; - } - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - hptr2[0] += lptr2[0]; - ++hptr2; - ++lptr2; - } - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - hptr2[0] += (lptr2[0] + lptr2[stride]) >> 1; - ++lptr2; - ++hptr2; - } - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - hptr2[0] += lptr2[0]; - ++lptr2; - ++hptr2; - } - } - - } else { - - if (parity) { - lptr2 = &a[0]; - for (i = 0; i < numcols; ++i) { - lptr2[0] >>= 1; - ++lptr2; - } - } - - } - -} - -int jpc_ft_analyze(jpc_fix_t *a, int xstart, int ystart, int width, int height, - int stride) -{ - int numrows = height; - int numcols = width; - int rowparity = ystart & 1; - int colparity = xstart & 1; - int i; - jpc_fix_t *startptr; - int maxcols; - - maxcols = (numcols / JPC_QMFB_COLGRPSIZE) * JPC_QMFB_COLGRPSIZE; - startptr = &a[0]; - for (i = 0; i < maxcols; i += JPC_QMFB_COLGRPSIZE) { - jpc_qmfb_split_colgrp(startptr, numrows, stride, rowparity); - jpc_ft_fwdlift_colgrp(startptr, numrows, stride, rowparity); - startptr += JPC_QMFB_COLGRPSIZE; - } - if (maxcols < numcols) { - jpc_qmfb_split_colres(startptr, numrows, numcols - maxcols, stride, - rowparity); - jpc_ft_fwdlift_colres(startptr, numrows, numcols - maxcols, stride, - rowparity); - } - - startptr = &a[0]; - for (i = 0; i < numrows; ++i) { - jpc_qmfb_split_row(startptr, numcols, colparity); - jpc_ft_fwdlift_row(startptr, numcols, colparity); - startptr += stride; - } - - return 0; - -} - -int jpc_ft_synthesize(int *a, int xstart, int ystart, int width, int height, - int stride) -{ - int numrows = height; - int numcols = width; - int rowparity = ystart & 1; - int colparity = xstart & 1; - - int maxcols; - jpc_fix_t *startptr; - int i; - - startptr = &a[0]; - for (i = 0; i < numrows; ++i) { - jpc_ft_invlift_row(startptr, numcols, colparity); - jpc_qmfb_join_row(startptr, numcols, colparity); - startptr += stride; - } - - maxcols = (numcols / JPC_QMFB_COLGRPSIZE) * JPC_QMFB_COLGRPSIZE; - startptr = &a[0]; - for (i = 0; i < maxcols; i += JPC_QMFB_COLGRPSIZE) { - jpc_ft_invlift_colgrp(startptr, numrows, stride, rowparity); - jpc_qmfb_join_colgrp(startptr, numrows, stride, rowparity); - startptr += JPC_QMFB_COLGRPSIZE; - } - if (maxcols < numcols) { - jpc_ft_invlift_colres(startptr, numrows, numcols - maxcols, stride, - rowparity); - jpc_qmfb_join_colres(startptr, numrows, numcols - maxcols, stride, - rowparity); - } - - return 0; - -} - -/******************************************************************************\ -* 9/7 transform -\******************************************************************************/ - -#define ALPHA (-1.586134342059924) -#define BETA (-0.052980118572961) -#define GAMMA (0.882911075530934) -#define DELTA (0.443506852043971) -#define LGAIN (1.0 / 1.23017410558578) -#define HGAIN (1.0 / 1.62578613134411) - -void jpc_ns_fwdlift_row(jpc_fix_t *a, int numcols, int parity) -{ - - register jpc_fix_t *lptr; - register jpc_fix_t *hptr; - register int n; - int llen; - - llen = (numcols + 1 - parity) >> 1; - - if (numcols > 1) { - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen]; - if (parity) { - jpc_fix_pluseq(hptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * ALPHA), - lptr[0])); - ++hptr; - } - n = numcols - llen - parity - (parity == (numcols & 1)); - while (n-- > 0) { - jpc_fix_pluseq(hptr[0], jpc_fix_mul(jpc_dbltofix(ALPHA), - jpc_fix_add(lptr[0], lptr[1]))); - ++hptr; - ++lptr; - } - if (parity == (numcols & 1)) { - jpc_fix_pluseq(hptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * ALPHA), - lptr[0])); - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen]; - if (!parity) { - jpc_fix_pluseq(lptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr[0])); - ++lptr; - } - n = llen - (!parity) - (parity != (numcols & 1)); - while (n-- > 0) { - jpc_fix_pluseq(lptr[0], jpc_fix_mul(jpc_dbltofix(BETA), - jpc_fix_add(hptr[0], hptr[1]))); - ++lptr; - ++hptr; - } - if (parity != (numcols & 1)) { - jpc_fix_pluseq(lptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr[0])); - } - - /* Apply the third lifting step. */ - lptr = &a[0]; - hptr = &a[llen]; - if (parity) { - jpc_fix_pluseq(hptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * GAMMA), - lptr[0])); - ++hptr; - } - n = numcols - llen - parity - (parity == (numcols & 1)); - while (n-- > 0) { - jpc_fix_pluseq(hptr[0], jpc_fix_mul(jpc_dbltofix(GAMMA), - jpc_fix_add(lptr[0], lptr[1]))); - ++hptr; - ++lptr; - } - if (parity == (numcols & 1)) { - jpc_fix_pluseq(hptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * GAMMA), - lptr[0])); - } - - /* Apply the fourth lifting step. */ - lptr = &a[0]; - hptr = &a[llen]; - if (!parity) { - jpc_fix_pluseq(lptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * DELTA), - hptr[0])); - ++lptr; - } - n = llen - (!parity) - (parity != (numcols & 1)); - while (n-- > 0) { - jpc_fix_pluseq(lptr[0], jpc_fix_mul(jpc_dbltofix(DELTA), - jpc_fix_add(hptr[0], hptr[1]))); - ++lptr; - ++hptr; - } - if (parity != (numcols & 1)) { - jpc_fix_pluseq(lptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * DELTA), - hptr[0])); - } - - /* Apply the scaling step. */ -#if defined(WT_DOSCALE) - lptr = &a[0]; - n = llen; - while (n-- > 0) { - lptr[0] = jpc_fix_mul(lptr[0], jpc_dbltofix(LGAIN)); - ++lptr; - } - hptr = &a[llen]; - n = numcols - llen; - while (n-- > 0) { - hptr[0] = jpc_fix_mul(hptr[0], jpc_dbltofix(HGAIN)); - ++hptr; - } -#endif - - } else { - -#if defined(WT_LENONE) - if (parity) { - lptr = &a[0]; - lptr[0] <<= 1; - } -#endif - - } - -} - -void jpc_ns_fwdlift_colgrp(jpc_fix_t *a, int numrows, int stride, - int parity) -{ - - jpc_fix_t *lptr; - jpc_fix_t *hptr; - register jpc_fix_t *lptr2; - register jpc_fix_t *hptr2; - register int n; - register int i; - int llen; - - llen = (numrows + 1 - parity) >> 1; - - if (numrows > 1) { - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * ALPHA), - lptr2[0])); - ++hptr2; - ++lptr2; - } - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(ALPHA), - jpc_fix_add(lptr2[0], lptr2[stride]))); - ++lptr2; - ++hptr2; - } - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * ALPHA), - lptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(BETA), - jpc_fix_add(hptr2[0], hptr2[stride]))); - ++lptr2; - ++hptr2; - } - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the third lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * GAMMA), - lptr2[0])); - ++hptr2; - ++lptr2; - } - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(GAMMA), - jpc_fix_add(lptr2[0], lptr2[stride]))); - ++lptr2; - ++hptr2; - } - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * GAMMA), - lptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the fourth lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * DELTA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(DELTA), - jpc_fix_add(hptr2[0], hptr2[stride]))); - ++lptr2; - ++hptr2; - } - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * DELTA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the scaling step. */ -#if defined(WT_DOSCALE) - lptr = &a[0]; - n = llen; - while (n-- > 0) { - lptr2 = lptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - lptr2[0] = jpc_fix_mul(lptr2[0], jpc_dbltofix(LGAIN)); - ++lptr2; - } - lptr += stride; - } - hptr = &a[llen * stride]; - n = numrows - llen; - while (n-- > 0) { - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - hptr2[0] = jpc_fix_mul(hptr2[0], jpc_dbltofix(HGAIN)); - ++hptr2; - } - hptr += stride; - } -#endif - - } else { - -#if defined(WT_LENONE) - if (parity) { - lptr2 = &a[0]; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - lptr2[0] <<= 1; - ++lptr2; - } - } -#endif - - } - -} - -void jpc_ns_fwdlift_colres(jpc_fix_t *a, int numrows, int numcols, - int stride, int parity) -{ - - jpc_fix_t *lptr; - jpc_fix_t *hptr; - register jpc_fix_t *lptr2; - register jpc_fix_t *hptr2; - register int n; - register int i; - int llen; - - llen = (numrows + 1 - parity) >> 1; - - if (numrows > 1) { - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * ALPHA), - lptr2[0])); - ++hptr2; - ++lptr2; - } - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(ALPHA), - jpc_fix_add(lptr2[0], lptr2[stride]))); - ++lptr2; - ++hptr2; - } - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * ALPHA), - lptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(BETA), - jpc_fix_add(hptr2[0], hptr2[stride]))); - ++lptr2; - ++hptr2; - } - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the third lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * GAMMA), - lptr2[0])); - ++hptr2; - ++lptr2; - } - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(GAMMA), - jpc_fix_add(lptr2[0], lptr2[stride]))); - ++lptr2; - ++hptr2; - } - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * GAMMA), - lptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the fourth lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * DELTA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(DELTA), - jpc_fix_add(hptr2[0], hptr2[stride]))); - ++lptr2; - ++hptr2; - } - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * DELTA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the scaling step. */ -#if defined(WT_DOSCALE) - lptr = &a[0]; - n = llen; - while (n-- > 0) { - lptr2 = lptr; - for (i = 0; i < numcols; ++i) { - lptr2[0] = jpc_fix_mul(lptr2[0], jpc_dbltofix(LGAIN)); - ++lptr2; - } - lptr += stride; - } - hptr = &a[llen * stride]; - n = numrows - llen; - while (n-- > 0) { - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - hptr2[0] = jpc_fix_mul(hptr2[0], jpc_dbltofix(HGAIN)); - ++hptr2; - } - hptr += stride; - } -#endif - - } else { - -#if defined(WT_LENONE) - if (parity) { - lptr2 = &a[0]; - for (i = 0; i < numcols; ++i) { - lptr2[0] <<= 1; - ++lptr2; - } - } -#endif - - } - -} - -void jpc_ns_fwdlift_col(jpc_fix_t *a, int numrows, int stride, - int parity) -{ - - jpc_fix_t *lptr; - jpc_fix_t *hptr; - register jpc_fix_t *lptr2; - register jpc_fix_t *hptr2; - register int n; - int llen; - - llen = (numrows + 1 - parity) >> 1; - - if (numrows > 1) { - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * ALPHA), - lptr2[0])); - ++hptr2; - ++lptr2; - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(ALPHA), - jpc_fix_add(lptr2[0], lptr2[stride]))); - ++lptr2; - ++hptr2; - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * ALPHA), - lptr2[0])); - ++lptr2; - ++hptr2; - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr2[0])); - ++lptr2; - ++hptr2; - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(BETA), - jpc_fix_add(hptr2[0], hptr2[stride]))); - ++lptr2; - ++hptr2; - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - - /* Apply the third lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * GAMMA), - lptr2[0])); - ++hptr2; - ++lptr2; - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(GAMMA), - jpc_fix_add(lptr2[0], lptr2[stride]))); - ++lptr2; - ++hptr2; - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_pluseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * GAMMA), - lptr2[0])); - ++lptr2; - ++hptr2; - } - - /* Apply the fourth lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * DELTA), - hptr2[0])); - ++lptr2; - ++hptr2; - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(DELTA), - jpc_fix_add(hptr2[0], hptr2[stride]))); - ++lptr2; - ++hptr2; - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_pluseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * DELTA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - - /* Apply the scaling step. */ -#if defined(WT_DOSCALE) - lptr = &a[0]; - n = llen; - while (n-- > 0) { - lptr2 = lptr; - lptr2[0] = jpc_fix_mul(lptr2[0], jpc_dbltofix(LGAIN)); - ++lptr2; - lptr += stride; - } - hptr = &a[llen * stride]; - n = numrows - llen; - while (n-- > 0) { - hptr2 = hptr; - hptr2[0] = jpc_fix_mul(hptr2[0], jpc_dbltofix(HGAIN)); - ++hptr2; - hptr += stride; - } -#endif - - } else { - -#if defined(WT_LENONE) - if (parity) { - lptr2 = &a[0]; - lptr2[0] <<= 1; - ++lptr2; - } -#endif - - } - -} - -void jpc_ns_invlift_row(jpc_fix_t *a, int numcols, int parity) -{ - - register jpc_fix_t *lptr; - register jpc_fix_t *hptr; - register int n; - int llen; - - llen = (numcols + 1 - parity) >> 1; - - if (numcols > 1) { - - /* Apply the scaling step. */ -#if defined(WT_DOSCALE) - lptr = &a[0]; - n = llen; - while (n-- > 0) { - lptr[0] = jpc_fix_mul(lptr[0], jpc_dbltofix(1.0 / LGAIN)); - ++lptr; - } - hptr = &a[llen]; - n = numcols - llen; - while (n-- > 0) { - hptr[0] = jpc_fix_mul(hptr[0], jpc_dbltofix(1.0 / HGAIN)); - ++hptr; - } -#endif - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen]; - if (!parity) { - jpc_fix_minuseq(lptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * DELTA), - hptr[0])); - ++lptr; - } - n = llen - (!parity) - (parity != (numcols & 1)); - while (n-- > 0) { - jpc_fix_minuseq(lptr[0], jpc_fix_mul(jpc_dbltofix(DELTA), - jpc_fix_add(hptr[0], hptr[1]))); - ++lptr; - ++hptr; - } - if (parity != (numcols & 1)) { - jpc_fix_minuseq(lptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * DELTA), - hptr[0])); - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen]; - if (parity) { - jpc_fix_minuseq(hptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * GAMMA), - lptr[0])); - ++hptr; - } - n = numcols - llen - parity - (parity == (numcols & 1)); - while (n-- > 0) { - jpc_fix_minuseq(hptr[0], jpc_fix_mul(jpc_dbltofix(GAMMA), - jpc_fix_add(lptr[0], lptr[1]))); - ++hptr; - ++lptr; - } - if (parity == (numcols & 1)) { - jpc_fix_minuseq(hptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * GAMMA), - lptr[0])); - } - - /* Apply the third lifting step. */ - lptr = &a[0]; - hptr = &a[llen]; - if (!parity) { - jpc_fix_minuseq(lptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr[0])); - ++lptr; - } - n = llen - (!parity) - (parity != (numcols & 1)); - while (n-- > 0) { - jpc_fix_minuseq(lptr[0], jpc_fix_mul(jpc_dbltofix(BETA), - jpc_fix_add(hptr[0], hptr[1]))); - ++lptr; - ++hptr; - } - if (parity != (numcols & 1)) { - jpc_fix_minuseq(lptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr[0])); - } - - /* Apply the fourth lifting step. */ - lptr = &a[0]; - hptr = &a[llen]; - if (parity) { - jpc_fix_minuseq(hptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * ALPHA), - lptr[0])); - ++hptr; - } - n = numcols - llen - parity - (parity == (numcols & 1)); - while (n-- > 0) { - jpc_fix_minuseq(hptr[0], jpc_fix_mul(jpc_dbltofix(ALPHA), - jpc_fix_add(lptr[0], lptr[1]))); - ++hptr; - ++lptr; - } - if (parity == (numcols & 1)) { - jpc_fix_minuseq(hptr[0], jpc_fix_mul(jpc_dbltofix(2.0 * ALPHA), - lptr[0])); - } - - } else { - -#if defined(WT_LENONE) - if (parity) { - lptr = &a[0]; - lptr[0] >>= 1; - } -#endif - - } - -} - -void jpc_ns_invlift_colgrp(jpc_fix_t *a, int numrows, int stride, - int parity) -{ - - jpc_fix_t *lptr; - jpc_fix_t *hptr; - register jpc_fix_t *lptr2; - register jpc_fix_t *hptr2; - register int n; - register int i; - int llen; - - llen = (numrows + 1 - parity) >> 1; - - if (numrows > 1) { - - /* Apply the scaling step. */ -#if defined(WT_DOSCALE) - lptr = &a[0]; - n = llen; - while (n-- > 0) { - lptr2 = lptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - lptr2[0] = jpc_fix_mul(lptr2[0], jpc_dbltofix(1.0 / LGAIN)); - ++lptr2; - } - lptr += stride; - } - hptr = &a[llen * stride]; - n = numrows - llen; - while (n-- > 0) { - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - hptr2[0] = jpc_fix_mul(hptr2[0], jpc_dbltofix(1.0 / HGAIN)); - ++hptr2; - } - hptr += stride; - } -#endif - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - DELTA), hptr2[0])); - ++lptr2; - ++hptr2; - } - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(DELTA), - jpc_fix_add(hptr2[0], hptr2[stride]))); - ++lptr2; - ++hptr2; - } - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - DELTA), hptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - GAMMA), lptr2[0])); - ++hptr2; - ++lptr2; - } - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(GAMMA), - jpc_fix_add(lptr2[0], lptr2[stride]))); - ++lptr2; - ++hptr2; - } - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - GAMMA), lptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the third lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(BETA), - jpc_fix_add(hptr2[0], hptr2[stride]))); - ++lptr2; - ++hptr2; - } - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the fourth lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - ALPHA), lptr2[0])); - ++hptr2; - ++lptr2; - } - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(ALPHA), - jpc_fix_add(lptr2[0], lptr2[stride]))); - ++lptr2; - ++hptr2; - } - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - ALPHA), lptr2[0])); - ++lptr2; - ++hptr2; - } - } - - } else { - -#if defined(WT_LENONE) - if (parity) { - lptr2 = &a[0]; - for (i = 0; i < JPC_QMFB_COLGRPSIZE; ++i) { - lptr2[0] >>= 1; - ++lptr2; - } - } -#endif - - } - -} - -void jpc_ns_invlift_colres(jpc_fix_t *a, int numrows, int numcols, - int stride, int parity) -{ - - jpc_fix_t *lptr; - jpc_fix_t *hptr; - register jpc_fix_t *lptr2; - register jpc_fix_t *hptr2; - register int n; - register int i; - int llen; - - llen = (numrows + 1 - parity) >> 1; - - if (numrows > 1) { - - /* Apply the scaling step. */ -#if defined(WT_DOSCALE) - lptr = &a[0]; - n = llen; - while (n-- > 0) { - lptr2 = lptr; - for (i = 0; i < numcols; ++i) { - lptr2[0] = jpc_fix_mul(lptr2[0], jpc_dbltofix(1.0 / LGAIN)); - ++lptr2; - } - lptr += stride; - } - hptr = &a[llen * stride]; - n = numrows - llen; - while (n-- > 0) { - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - hptr2[0] = jpc_fix_mul(hptr2[0], jpc_dbltofix(1.0 / HGAIN)); - ++hptr2; - } - hptr += stride; - } -#endif - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - DELTA), hptr2[0])); - ++lptr2; - ++hptr2; - } - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(DELTA), - jpc_fix_add(hptr2[0], hptr2[stride]))); - ++lptr2; - ++hptr2; - } - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - DELTA), hptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - GAMMA), lptr2[0])); - ++hptr2; - ++lptr2; - } - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(GAMMA), - jpc_fix_add(lptr2[0], lptr2[stride]))); - ++lptr2; - ++hptr2; - } - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - GAMMA), lptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the third lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(BETA), - jpc_fix_add(hptr2[0], hptr2[stride]))); - ++lptr2; - ++hptr2; - } - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - } - - /* Apply the fourth lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - ALPHA), lptr2[0])); - ++hptr2; - ++lptr2; - } - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(ALPHA), - jpc_fix_add(lptr2[0], lptr2[stride]))); - ++lptr2; - ++hptr2; - } - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - for (i = 0; i < numcols; ++i) { - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - ALPHA), lptr2[0])); - ++lptr2; - ++hptr2; - } - } - - } else { - -#if defined(WT_LENONE) - if (parity) { - lptr2 = &a[0]; - for (i = 0; i < numcols; ++i) { - lptr2[0] >>= 1; - ++lptr2; - } - } -#endif - - } - -} - -void jpc_ns_invlift_col(jpc_fix_t *a, int numrows, int stride, - int parity) -{ - - jpc_fix_t *lptr; - jpc_fix_t *hptr; - register jpc_fix_t *lptr2; - register jpc_fix_t *hptr2; - register int n; - int llen; - - llen = (numrows + 1 - parity) >> 1; - - if (numrows > 1) { - - /* Apply the scaling step. */ -#if defined(WT_DOSCALE) - lptr = &a[0]; - n = llen; - while (n-- > 0) { - lptr2 = lptr; - lptr2[0] = jpc_fix_mul(lptr2[0], jpc_dbltofix(1.0 / LGAIN)); - ++lptr2; - lptr += stride; - } - hptr = &a[llen * stride]; - n = numrows - llen; - while (n-- > 0) { - hptr2 = hptr; - hptr2[0] = jpc_fix_mul(hptr2[0], jpc_dbltofix(1.0 / HGAIN)); - ++hptr2; - hptr += stride; - } -#endif - - /* Apply the first lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - DELTA), hptr2[0])); - ++lptr2; - ++hptr2; - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(DELTA), - jpc_fix_add(hptr2[0], hptr2[stride]))); - ++lptr2; - ++hptr2; - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - DELTA), hptr2[0])); - ++lptr2; - ++hptr2; - } - - /* Apply the second lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - GAMMA), lptr2[0])); - ++hptr2; - ++lptr2; - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(GAMMA), - jpc_fix_add(lptr2[0], lptr2[stride]))); - ++lptr2; - ++hptr2; - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - GAMMA), lptr2[0])); - ++lptr2; - ++hptr2; - } - - /* Apply the third lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (!parity) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr2[0])); - ++lptr2; - ++hptr2; - lptr += stride; - } - n = llen - (!parity) - (parity != (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(BETA), - jpc_fix_add(hptr2[0], hptr2[stride]))); - ++lptr2; - ++hptr2; - lptr += stride; - hptr += stride; - } - if (parity != (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_minuseq(lptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * BETA), - hptr2[0])); - ++lptr2; - ++hptr2; - } - - /* Apply the fourth lifting step. */ - lptr = &a[0]; - hptr = &a[llen * stride]; - if (parity) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - ALPHA), lptr2[0])); - ++hptr2; - ++lptr2; - hptr += stride; - } - n = numrows - llen - parity - (parity == (numrows & 1)); - while (n-- > 0) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(ALPHA), - jpc_fix_add(lptr2[0], lptr2[stride]))); - ++lptr2; - ++hptr2; - hptr += stride; - lptr += stride; - } - if (parity == (numrows & 1)) { - lptr2 = lptr; - hptr2 = hptr; - jpc_fix_minuseq(hptr2[0], jpc_fix_mul(jpc_dbltofix(2.0 * - ALPHA), lptr2[0])); - ++lptr2; - ++hptr2; - } - - } else { - -#if defined(WT_LENONE) - if (parity) { - lptr2 = &a[0]; - lptr2[0] >>= 1; - ++lptr2; - } -#endif - - } - -} - -int jpc_ns_analyze(jpc_fix_t *a, int xstart, int ystart, int width, int height, - int stride) -{ - - int numrows = height; - int numcols = width; - int rowparity = ystart & 1; - int colparity = xstart & 1; - int i; - jpc_fix_t *startptr; - int maxcols; - - maxcols = (numcols / JPC_QMFB_COLGRPSIZE) * JPC_QMFB_COLGRPSIZE; - startptr = &a[0]; - for (i = 0; i < maxcols; i += JPC_QMFB_COLGRPSIZE) { - jpc_qmfb_split_colgrp(startptr, numrows, stride, rowparity); - jpc_ns_fwdlift_colgrp(startptr, numrows, stride, rowparity); - startptr += JPC_QMFB_COLGRPSIZE; - } - if (maxcols < numcols) { - jpc_qmfb_split_colres(startptr, numrows, numcols - maxcols, stride, - rowparity); - jpc_ns_fwdlift_colres(startptr, numrows, numcols - maxcols, stride, - rowparity); - } - - startptr = &a[0]; - for (i = 0; i < numrows; ++i) { - jpc_qmfb_split_row(startptr, numcols, colparity); - jpc_ns_fwdlift_row(startptr, numcols, colparity); - startptr += stride; - } - - return 0; - -} - -int jpc_ns_synthesize(jpc_fix_t *a, int xstart, int ystart, int width, - int height, int stride) -{ - - int numrows = height; - int numcols = width; - int rowparity = ystart & 1; - int colparity = xstart & 1; - int maxcols; - jpc_fix_t *startptr; - int i; - - startptr = &a[0]; - for (i = 0; i < numrows; ++i) { - jpc_ns_invlift_row(startptr, numcols, colparity); - jpc_qmfb_join_row(startptr, numcols, colparity); - startptr += stride; - } - - maxcols = (numcols / JPC_QMFB_COLGRPSIZE) * JPC_QMFB_COLGRPSIZE; - startptr = &a[0]; - for (i = 0; i < maxcols; i += JPC_QMFB_COLGRPSIZE) { - jpc_ns_invlift_colgrp(startptr, numrows, stride, rowparity); - jpc_qmfb_join_colgrp(startptr, numrows, stride, rowparity); - startptr += JPC_QMFB_COLGRPSIZE; - } - if (maxcols < numcols) { - jpc_ns_invlift_colres(startptr, numrows, numcols - maxcols, stride, - rowparity); - jpc_qmfb_join_colres(startptr, numrows, numcols - maxcols, stride, - rowparity); - } - - return 0; - -} |