From cc07c64bdef46f4d25c2203e874f91ee94583f56 Mon Sep 17 00:00:00 2001 From: dan miller Date: Thu, 18 Oct 2007 08:29:49 +0000 Subject: one more time --- libraries/openjpeg-libsl/libopenjpeg/dwt.c | 661 +++++++++++++++++++++++++++++ 1 file changed, 661 insertions(+) create mode 100644 libraries/openjpeg-libsl/libopenjpeg/dwt.c (limited to 'libraries/openjpeg-libsl/libopenjpeg/dwt.c') diff --git a/libraries/openjpeg-libsl/libopenjpeg/dwt.c b/libraries/openjpeg-libsl/libopenjpeg/dwt.c new file mode 100644 index 0000000..d10de18 --- /dev/null +++ b/libraries/openjpeg-libsl/libopenjpeg/dwt.c @@ -0,0 +1,661 @@ +/* + * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium + * Copyright (c) 2002-2007, Professor Benoit Macq + * Copyright (c) 2001-2003, David Janssens + * Copyright (c) 2002-2003, Yannick Verschueren + * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe + * Copyright (c) 2005, Herve Drolon, FreeImage Team + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + + +#include "opj_includes.h" + +/** @defgroup DWT DWT - Implementation of a discrete wavelet transform */ +/*@{*/ + +#define WS(i) v->mem[(i)*2] +#define WD(i) v->mem[(1+(i)*2)] + +/** @name Local data structures */ +/*@{*/ + +typedef struct dwt_local{ + int * mem ; + int dn ; + int sn ; + int cas ; + } dwt_t ; + +/*@}*/ + +/** +Virtual function type for wavelet transform in 1-D +*/ +typedef void (*DWT1DFN)(dwt_t* v); + +/** @name Local static functions */ +/*@{*/ + +/** +Forward lazy transform (horizontal) +*/ +static void dwt_deinterleave_h(int *a, int *b, int dn, int sn, int cas); +/** +Forward lazy transform (vertical) +*/ +static void dwt_deinterleave_v(int *a, int *b, int dn, int sn, int x, int cas); +/** +Inverse lazy transform (horizontal) +*/ +static void dwt_interleave_h(dwt_t* h, int *a); +/** +Inverse lazy transform (vertical) +*/ +static void dwt_interleave_v(dwt_t* v, int *a, int x); +/** +Forward 5-3 wavelet tranform in 1-D +*/ +static void dwt_encode_1(int *a, int dn, int sn, int cas); +/** +Inverse 5-3 wavelet tranform in 1-D +*/ +static void dwt_decode_1(dwt_t *v); +/** +Forward 9-7 wavelet transform in 1-D +*/ +static void dwt_encode_1_real(int *a, int dn, int sn, int cas); +/** +Inverse 9-7 wavelet transform in 1-D +*/ +static void dwt_decode_1_real(dwt_t *v); +/** +FIXME : comment ??? +*/ +static void dwt_encode_stepsize(int stepsize, int numbps, opj_stepsize_t *bandno_stepsize); +/** +Inverse wavelet tranform in 2-D. +*/ +static void dwt_decode_tile(opj_tcd_tilecomp_t * tilec, int stop , DWT1DFN fn); + +/*@}*/ + +/*@}*/ + +#define S(i) a[(i)*2] +#define D(i) a[(1+(i)*2)] +#define S_(i) ((i)<0?S(0):((i)>=sn?S(sn-1):S(i))) +#define D_(i) ((i)<0?D(0):((i)>=dn?D(dn-1):D(i))) +/* new */ +#define SS_(i) ((i)<0?S(0):((i)>=dn?S(dn-1):S(i))) +#define DD_(i) ((i)<0?D(0):((i)>=sn?D(sn-1):D(i))) + +/* */ +/* This table contains the norms of the 5-3 wavelets for different bands. */ +/* */ +static const double dwt_norms[4][10] = { + {1.000, 1.500, 2.750, 5.375, 10.68, 21.34, 42.67, 85.33, 170.7, 341.3}, + {1.038, 1.592, 2.919, 5.703, 11.33, 22.64, 45.25, 90.48, 180.9}, + {1.038, 1.592, 2.919, 5.703, 11.33, 22.64, 45.25, 90.48, 180.9}, + {.7186, .9218, 1.586, 3.043, 6.019, 12.01, 24.00, 47.97, 95.93} +}; + +/* */ +/* This table contains the norms of the 9-7 wavelets for different bands. */ +/* */ +static const double dwt_norms_real[4][10] = { + {1.000, 1.965, 4.177, 8.403, 16.90, 33.84, 67.69, 135.3, 270.6, 540.9}, + {2.022, 3.989, 8.355, 17.04, 34.27, 68.63, 137.3, 274.6, 549.0}, + {2.022, 3.989, 8.355, 17.04, 34.27, 68.63, 137.3, 274.6, 549.0}, + {2.080, 3.865, 8.307, 17.18, 34.71, 69.59, 139.3, 278.6, 557.2} +}; + +/* +========================================================== + local functions +========================================================== +*/ + +/* */ +/* Forward lazy transform (horizontal). */ +/* */ +static void dwt_deinterleave_h(int *a, int *b, int dn, int sn, int cas) { + int i; + for (i=0; i */ +/* Forward lazy transform (vertical). */ +/* */ +static void dwt_deinterleave_v(int *a, int *b, int dn, int sn, int x, int cas) { + int i; + for (i=0; i */ +/* Inverse lazy transform (horizontal). */ +/* */ +static void dwt_interleave_h(dwt_t* h, int *a) { + int *ai = a; + int *bi = h->mem + h->cas; + int i = h->sn; + while( i-- ) { + *bi = *(ai++); + bi += 2; + } + ai = a + h->sn; + bi = h->mem + 1 - h->cas; + i = h->dn ; + while( i-- ) { + *bi = *(ai++); + bi += 2; + } +} + +/* */ +/* Inverse lazy transform (vertical). */ +/* */ +static void dwt_interleave_v(dwt_t* v, int *a, int x) { + int *ai = a; + int *bi = v->mem + v->cas; + int i = v->sn; + while( i-- ) { + *bi = *ai; + bi += 2; + ai += x; + } + ai = a + (v->sn * x); + bi = v->mem + 1 - v->cas; + i = v->dn ; + while( i-- ) { + *bi = *ai; + bi += 2; + ai += x; + } +} + + +/* */ +/* Forward 5-3 wavelet tranform in 1-D. */ +/* */ +static void dwt_encode_1(int *a, int dn, int sn, int cas) { + int i; + + if (!cas) { + if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */ + for (i = 0; i < dn; i++) D(i) -= (S_(i) + S_(i + 1)) >> 1; + for (i = 0; i < sn; i++) S(i) += (D_(i - 1) + D_(i) + 2) >> 2; + } + } else { + if (!sn && dn == 1) /* NEW : CASE ONE ELEMENT */ + S(0) *= 2; + else { + for (i = 0; i < dn; i++) S(i) -= (DD_(i) + DD_(i - 1)) >> 1; + for (i = 0; i < sn; i++) D(i) += (SS_(i) + SS_(i + 1) + 2) >> 2; + } + } +} + +/* */ +/* Inverse 5-3 wavelet tranform in 1-D. */ +/* */ +static void dwt_decode_1_(int *a, int dn, int sn, int cas) { + int i; + + if (!cas) { + if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */ + for (i = 0; i < sn; i++) S(i) -= (D_(i - 1) + D_(i) + 2) >> 2; + for (i = 0; i < dn; i++) D(i) += (S_(i) + S_(i + 1)) >> 1; + } + } else { + if (!sn && dn == 1) /* NEW : CASE ONE ELEMENT */ + S(0) /= 2; + else { + for (i = 0; i < sn; i++) D(i) -= (SS_(i) + SS_(i + 1) + 2) >> 2; + for (i = 0; i < dn; i++) S(i) += (DD_(i) + DD_(i - 1)) >> 1; + } + } +} + +/* */ +/* Inverse 5-3 wavelet tranform in 1-D. */ +/* */ +static void dwt_decode_1(dwt_t *v) { + dwt_decode_1_(v->mem, v->dn, v->sn, v->cas); +} + +/* */ +/* Forward 9-7 wavelet transform in 1-D. */ +/* */ +static void dwt_encode_1_real(int *a, int dn, int sn, int cas) { + int i; + if (!cas) { + if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */ + for (i = 0; i < dn; i++) + D(i) -= fix_mul(S_(i) + S_(i + 1), 12993); + for (i = 0; i < sn; i++) + S(i) -= fix_mul(D_(i - 1) + D_(i), 434); + for (i = 0; i < dn; i++) + D(i) += fix_mul(S_(i) + S_(i + 1), 7233); + for (i = 0; i < sn; i++) + S(i) += fix_mul(D_(i - 1) + D_(i), 3633); + for (i = 0; i < dn; i++) + D(i) = fix_mul(D(i), 5038); /*5038 */ + for (i = 0; i < sn; i++) + S(i) = fix_mul(S(i), 6659); /*6660 */ + } + } else { + if ((sn > 0) || (dn > 1)) { /* NEW : CASE ONE ELEMENT */ + for (i = 0; i < dn; i++) + S(i) -= fix_mul(DD_(i) + DD_(i - 1), 12993); + for (i = 0; i < sn; i++) + D(i) -= fix_mul(SS_(i) + SS_(i + 1), 434); + for (i = 0; i < dn; i++) + S(i) += fix_mul(DD_(i) + DD_(i - 1), 7233); + for (i = 0; i < sn; i++) + D(i) += fix_mul(SS_(i) + SS_(i + 1), 3633); + for (i = 0; i < dn; i++) + S(i) = fix_mul(S(i), 5038); /*5038 */ + for (i = 0; i < sn; i++) + D(i) = fix_mul(D(i), 6659); /*6660 */ + } + } +} + +static void dwt_decode_sm(dwt_t* v, int k, int n, int x) { + int m = k > n ? n : k; + int l = v->mem[1]; //D(0); + int j; + int i; + for (i = 0; i < m; i++) { + j = l; + WS(i) -= fix_mul( ( l = WD(i) ) + j , x); + } + if( i < k ) { + l = fix_mul( l + l , x ); + for (; i < k; i++) + WS(i) -= l; + } +} + +static void dwt_decode_sp(dwt_t* v, int k, int n, int x) { + int m = k > n ? n : k; + int l = v->mem[1]; //D(0); + int j; + int i; + for (i = 0; i < m; i++) { + j = l; + WS(i) += fix_mul( ( l = WD(i) ) + j , x); + } + if( i < k ) { + l = fix_mul( l + l , x ); + for (; i < k; i++) + WS(i) += l; + } +} + +static void dwt_decode_dm(dwt_t* v, int k, int n, int x) { + int m = k >= n ? n-1 : k; + int l = v->mem[0]; //S(0); + int i; + int j; + for (i = 0; i < m; i++) { + j = l; + WD(i) -= fix_mul( ( l = WS(i+1) ) + j , x); + } + if( i < k ) { + l = fix_mul( l + l , x ); + for (; i < k; i++) + WD(i) -= l; + } +} + +static void dwt_decode_dp(dwt_t* v, int k, int n, int x) { + int m = k >= n ? n-1 : k; + int l = v->mem[0]; //S(0); + int i; + int j; + for (i = 0; i < m; i++) { + j = l; + WD(i) += fix_mul( ( l = WS(i+1) ) + j , x); + } + + if( i < k ) { + l = fix_mul( l + l , x ); + for (; i < k; i++) + WD(i) += l; + } +} + + +/* */ +/* Inverse 9-7 wavelet transform in 1-D. */ +/* */ +static void dwt_decode_1_real(dwt_t* v) { + int i; + if (!v->cas) { + if ((v->dn > 0) || (v->sn > 1)) { /* NEW : CASE ONE ELEMENT */ + for (i = 0; i < v->sn; i++) + WS(i) = fix_mul(WS(i), 10078); /* 10076 */ + for (i = 0; i < v->dn; i++) + WD(i) = fix_mul(WD(i), 13318); /* 13320 */ + dwt_decode_sm(v, v->sn, v->dn, 3633); + dwt_decode_dm(v, v->dn, v->sn, 7233); + dwt_decode_sp(v, v->sn, v->dn, 434); + dwt_decode_dp(v, v->dn, v->sn, 12994); + } + } else { + if ((v->sn > 0) || (v->dn > 1)) { /* NEW : CASE ONE ELEMENT */ + for (i = 0; i < v->sn; i++) + WD(i) = fix_mul(WD(i), 10078); /* 10076 */ + for (i = 0; i < v->dn; i++) + WS(i) = fix_mul(WS(i), 13318); /* 13320 */ + dwt_decode_dm(v, v->sn, v->dn, 3633); + dwt_decode_sm(v, v->dn, v->sn, 7233); + dwt_decode_dp(v, v->sn, v->dn, 434); + dwt_decode_sp(v, v->dn, v->sn, 12994); + } + } +} + +static void dwt_encode_stepsize(int stepsize, int numbps, opj_stepsize_t *bandno_stepsize) { + int p, n; + p = int_floorlog2(stepsize) - 13; + n = 11 - int_floorlog2(stepsize); + bandno_stepsize->mant = (n < 0 ? stepsize >> -n : stepsize << n) & 0x7ff; + bandno_stepsize->expn = numbps - p; +} + +/* +========================================================== + DWT interface +========================================================== +*/ + +/* */ +/* Forward 5-3 wavelet tranform in 2-D. */ +/* */ +void dwt_encode(opj_tcd_tilecomp_t * tilec) { + int i, j, k; + int *a = NULL; + int *aj = NULL; + int *bj = NULL; + int w, l; + + w = tilec->x1-tilec->x0; + l = tilec->numresolutions-1; + a = tilec->data; + + for (i = 0; i < l; i++) { + int rw; /* width of the resolution level computed */ + int rh; /* heigth of the resolution level computed */ + int rw1; /* width of the resolution level once lower than computed one */ + int rh1; /* height of the resolution level once lower than computed one */ + int cas_col; /* 0 = non inversion on horizontal filtering 1 = inversion between low-pass and high-pass filtering */ + int cas_row; /* 0 = non inversion on vertical filtering 1 = inversion between low-pass and high-pass filtering */ + int dn, sn; + + rw = tilec->resolutions[l - i].x1 - tilec->resolutions[l - i].x0; + rh = tilec->resolutions[l - i].y1 - tilec->resolutions[l - i].y0; + rw1= tilec->resolutions[l - i - 1].x1 - tilec->resolutions[l - i - 1].x0; + rh1= tilec->resolutions[l - i - 1].y1 - tilec->resolutions[l - i - 1].y0; + + cas_row = tilec->resolutions[l - i].x0 % 2; + cas_col = tilec->resolutions[l - i].y0 % 2; + + sn = rh1; + dn = rh - rh1; + bj = (int*)opj_malloc(rh * sizeof(int)); + for (j = 0; j < rw; j++) { + aj = a + j; + for (k = 0; k < rh; k++) bj[k] = aj[k*w]; + dwt_encode_1(bj, dn, sn, cas_col); + dwt_deinterleave_v(bj, aj, dn, sn, w, cas_col); + } + opj_free(bj); + + sn = rw1; + dn = rw - rw1; + bj = (int*)opj_malloc(rw * sizeof(int)); + for (j = 0; j < rh; j++) { + aj = a + j * w; + for (k = 0; k < rw; k++) bj[k] = aj[k]; + dwt_encode_1(bj, dn, sn, cas_row); + dwt_deinterleave_h(bj, aj, dn, sn, cas_row); + } + opj_free(bj); + } +} + + +/* */ +/* Inverse 5-3 wavelet tranform in 2-D. */ +/* */ +void dwt_decode(opj_tcd_tilecomp_t * tilec, int stop) { + dwt_decode_tile(tilec, stop, &dwt_decode_1); +} + + +/* */ +/* Get gain of 5-3 wavelet transform. */ +/* */ +int dwt_getgain(int orient) { + if (orient == 0) + return 0; + if (orient == 1 || orient == 2) + return 1; + return 2; +} + +/* */ +/* Get norm of 5-3 wavelet. */ +/* */ +double dwt_getnorm(int level, int orient) { + return dwt_norms[orient][level]; +} + +/* */ +/* Forward 9-7 wavelet transform in 2-D. */ +/* */ + +void dwt_encode_real(opj_tcd_tilecomp_t * tilec) { + int i, j, k; + int *a = NULL; + int *aj = NULL; + int *bj = NULL; + int w, l; + + w = tilec->x1-tilec->x0; + l = tilec->numresolutions-1; + a = tilec->data; + + for (i = 0; i < l; i++) { + int rw; /* width of the resolution level computed */ + int rh; /* heigth of the resolution level computed */ + int rw1; /* width of the resolution level once lower than computed one */ + int rh1; /* height of the resolution level once lower than computed one */ + int cas_col; /* 0 = non inversion on horizontal filtering 1 = inversion between low-pass and high-pass filtering */ + int cas_row; /* 0 = non inversion on vertical filtering 1 = inversion between low-pass and high-pass filtering */ + int dn, sn; + + rw = tilec->resolutions[l - i].x1 - tilec->resolutions[l - i].x0; + rh = tilec->resolutions[l - i].y1 - tilec->resolutions[l - i].y0; + rw1= tilec->resolutions[l - i - 1].x1 - tilec->resolutions[l - i - 1].x0; + rh1= tilec->resolutions[l - i - 1].y1 - tilec->resolutions[l - i - 1].y0; + + cas_row = tilec->resolutions[l - i].x0 % 2; + cas_col = tilec->resolutions[l - i].y0 % 2; + + sn = rh1; + dn = rh - rh1; + bj = (int*)opj_malloc(rh * sizeof(int)); + for (j = 0; j < rw; j++) { + aj = a + j; + for (k = 0; k < rh; k++) bj[k] = aj[k*w]; + dwt_encode_1_real(bj, dn, sn, cas_col); + dwt_deinterleave_v(bj, aj, dn, sn, w, cas_col); + } + opj_free(bj); + + sn = rw1; + dn = rw - rw1; + bj = (int*)opj_malloc(rw * sizeof(int)); + for (j = 0; j < rh; j++) { + aj = a + j * w; + for (k = 0; k < rw; k++) bj[k] = aj[k]; + dwt_encode_1_real(bj, dn, sn, cas_row); + dwt_deinterleave_h(bj, aj, dn, sn, cas_row); + } + opj_free(bj); + } +} + + +/* */ +/* Inverse 9-7 wavelet transform in 2-D. */ +/* */ +void dwt_decode_real(opj_tcd_tilecomp_t * tilec, int stop) { + dwt_decode_tile(tilec, stop, dwt_decode_1_real); +} + + +/* */ +/* Get gain of 9-7 wavelet transform. */ +/* */ +int dwt_getgain_real(int orient) { + (void)orient; + return 0; +} + +/* */ +/* Get norm of 9-7 wavelet. */ +/* */ +double dwt_getnorm_real(int level, int orient) { + return dwt_norms_real[orient][level]; +} + +void dwt_calc_explicit_stepsizes(opj_tccp_t * tccp, int prec) { + int numbands, bandno; + numbands = 3 * tccp->numresolutions - 2; + for (bandno = 0; bandno < numbands; bandno++) { + double stepsize; + int resno, level, orient, gain; + + resno = (bandno == 0) ? 0 : ((bandno - 1) / 3 + 1); + orient = (bandno == 0) ? 0 : ((bandno - 1) % 3 + 1); + level = tccp->numresolutions - 1 - resno; + gain = (tccp->qmfbid == 0) ? 0 : ((orient == 0) ? 0 : (((orient == 1) || (orient == 2)) ? 1 : 2)); + if (tccp->qntsty == J2K_CCP_QNTSTY_NOQNT) { + stepsize = 1.0; + } else { + double norm = dwt_norms_real[orient][level]; + stepsize = (1 << (gain)) / norm; + } + dwt_encode_stepsize((int) floor(stepsize * 8192.0), prec + gain, &tccp->stepsizes[bandno]); + } +} + + +/* */ +/* Determine maximum computed resolution level for inverse wavelet transform */ +/* */ +static int dwt_decode_max_resolution(opj_tcd_resolution_t* r, int i) { + int mr = 1; + int w; + while( --i ) { + r++; + if( mr < ( w = r->x1 - r->x0 ) ) + mr = w ; + if( mr < ( w = r->y1 - r->y0 ) ) + mr = w ; + } + return mr ; +} + + +/* */ +/* Inverse wavelet tranform in 2-D. */ +/* */ +static void dwt_decode_tile(opj_tcd_tilecomp_t * tilec, int stop, DWT1DFN dwt_1D) { + opj_tcd_resolution_t* tr; + int i, j, k; + int *a = NULL; + int *aj = NULL; + int *m; + int w; //, l; + int rw; /* width of the resolution level computed */ + int rh; /* heigth of the resolution level computed */ + dwt_t h; + dwt_t v; + + if( 1 > ( i = tilec->numresolutions - stop ) ) + return ; + + tr = tilec->resolutions; + + w = tilec->x1-tilec->x0; + a = tilec->data; + + m = (int*)opj_malloc(sizeof(int) * (dwt_decode_max_resolution(tr, i)+5)); + h.mem = v.mem = (int*)( (unsigned)m + 16 - ( (unsigned)m % 16 ) ) ; + + rw = tr->x1 - tr->x0; + rh = tr->y1 - tr->y0; + + while( --i ) { + tr++; + h.sn = rw; + v.sn = rh; + h.dn = ( rw = tr->x1 - tr->x0 ) - h.sn; + v.dn = ( rh = tr->y1 - tr->y0 ) - v.sn; + + h.cas = tr->x0 % 2; + v.cas = tr->y0 % 2; + + aj = a; + j = rh; + while( j-- ) { + dwt_interleave_h(&h, aj); + (dwt_1D)(&h); + k = rw; + while( k-- ) + aj[k] = h.mem[k]; + aj += w; + } + + aj = a; + j = rw; + while( j-- ) { + dwt_interleave_v(&v, aj, w); + (dwt_1D)(&v); + k = rh; + while( k-- ) + aj[k * w] = v.mem[k]; + aj++; + } + } + opj_free(m); +} -- cgit v1.1