diff options
author | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2008-11-13 00:16:53 +0300 |
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committer | Brecht Van Lommel <brechtvanlommel@pandora.be> | 2008-11-13 00:16:53 +0300 |
commit | bdfe7d89e2f1292644577972c716931b4ce3c6c3 (patch) | |
tree | d00eb50b749cb001e2b08272c91791e66740b05d /extern/libopenjpeg/dwt.c | |
parent | 78a1c27c4a6abe0ed31ca93ad21910f3df04da56 (diff) | |
parent | 7e4db234cee71ead34ee81a12e27da4bd548eb4b (diff) |
Merge of trunk into blender 2.5:
svn merge https://svn.blender.org/svnroot/bf-blender/trunk/blender -r12987:17416
Issues:
* GHOST/X11 had conflicting changes. Some code was added in 2.5, which was
later added in trunk also, but reverted partially, specifically revision
16683. I have left out this reversion in the 2.5 branch since I think it is
needed there.
http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=16683
* Scons had various conflicting changes, I decided to go with trunk version
for everything except priorities and some library renaming.
* In creator.c, there were various fixes and fixes for fixes related to the -w
-W and -p options. In 2.5 -w and -W is not coded yet, and -p is done
differently. Since this is changed so much, and I don't think those fixes
would be needed in 2.5, I've left them out.
* Also in creator.c: there was code for a python bugfix where the screen was not
initialized when running with -P. The code that initializes the screen there
I had to disable, that can't work in 2.5 anymore but left it commented as a
reminder.
Further I had to disable some new function calls. using src/ and python/, as
was done already in this branch, disabled function calls:
* bpath.c: error reporting
* BME_conversions.c: editmesh conversion functions.
* SHD_dynamic: disabled almost completely, there is no python/.
* KX_PythonInit.cpp and Ketsji/ build files: Mathutils is not there, disabled.
* text.c: clipboard copy call.
* object.c: OB_SUPPORT_MATERIAL.
* DerivedMesh.c and subsurf_ccg, stipple_quarttone.
Still to be done:
* Go over files and functions that were moved to a different location but could
still use changes that were done in trunk.
Diffstat (limited to 'extern/libopenjpeg/dwt.c')
-rw-r--r-- | extern/libopenjpeg/dwt.c | 825 |
1 files changed, 825 insertions, 0 deletions
diff --git a/extern/libopenjpeg/dwt.c b/extern/libopenjpeg/dwt.c new file mode 100644 index 00000000000..78d18d175f4 --- /dev/null +++ b/extern/libopenjpeg/dwt.c @@ -0,0 +1,825 @@ +/* + * 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 + * Copyright (c) 2007, Jonathan Ballard <dzonatas@dzonux.net> + * Copyright (c) 2007, Callum Lerwick <seg@haxxed.com> + * 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. + */ + +#ifdef __SSE__ +#include <xmmintrin.h> +#endif + +#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; + +typedef union { + float f[4]; +} v4; + +typedef struct v4dwt_local { + v4* wavelet ; + int dn ; + int sn ; + int cas ; +} v4dwt_t ; + +static const float dwt_alpha = 1.586134342f; // 12994 +static const float dwt_beta = 0.052980118f; // 434 +static const float dwt_gamma = -0.882911075f; // -7233 +static const float dwt_delta = -0.443506852f; // -3633 + +static const float K = 1.230174105f; // 10078 +/* FIXME: What is this constant? */ +static const float c13318 = 1.625732422f; + +/*@}*/ + +/** +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 transform in 1-D +*/ +static void dwt_encode_1(int *a, int dn, int sn, int cas); +/** +Inverse 5-3 wavelet transform 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); +/** +Explicit calculation of the Quantization Stepsizes +*/ +static void dwt_encode_stepsize(int stepsize, int numbps, opj_stepsize_t *bandno_stepsize); +/** +Inverse wavelet transform in 2-D. +*/ +static void dwt_decode_tile(opj_tcd_tilecomp_t* tilec, int i, 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))) + +/* <summary> */ +/* This table contains the norms of the 5-3 wavelets for different bands. */ +/* </summary> */ +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} +}; + +/* <summary> */ +/* This table contains the norms of the 9-7 wavelets for different bands. */ +/* </summary> */ +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 +========================================================== +*/ + +/* <summary> */ +/* Forward lazy transform (horizontal). */ +/* </summary> */ +static void dwt_deinterleave_h(int *a, int *b, int dn, int sn, int cas) { + int i; + for (i=0; i<sn; i++) b[i]=a[2*i+cas]; + for (i=0; i<dn; i++) b[sn+i]=a[(2*i+1-cas)]; +} + +/* <summary> */ +/* Forward lazy transform (vertical). */ +/* </summary> */ +static void dwt_deinterleave_v(int *a, int *b, int dn, int sn, int x, int cas) { + int i; + for (i=0; i<sn; i++) b[i*x]=a[2*i+cas]; + for (i=0; i<dn; i++) b[(sn+i)*x]=a[(2*i+1-cas)]; +} + +/* <summary> */ +/* Inverse lazy transform (horizontal). */ +/* </summary> */ +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; + } +} + +/* <summary> */ +/* Inverse lazy transform (vertical). */ +/* </summary> */ +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; + } +} + + +/* <summary> */ +/* Forward 5-3 wavelet transform in 1-D. */ +/* </summary> */ +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; + } + } +} + +/* <summary> */ +/* Inverse 5-3 wavelet transform in 1-D. */ +/* </summary> */ +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; + } + } +} + +/* <summary> */ +/* Inverse 5-3 wavelet transform in 1-D. */ +/* </summary> */ +static void dwt_decode_1(dwt_t *v) { + dwt_decode_1_(v->mem, v->dn, v->sn, v->cas); +} + +/* <summary> */ +/* Forward 9-7 wavelet transform in 1-D. */ +/* </summary> */ +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_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 +========================================================== +*/ + +/* <summary> */ +/* Forward 5-3 wavelet transform in 2-D. */ +/* </summary> */ +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; /* height 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); + } +} + + +/* <summary> */ +/* Inverse 5-3 wavelet transform in 2-D. */ +/* </summary> */ +void dwt_decode(opj_tcd_tilecomp_t* tilec, int numres) { + dwt_decode_tile(tilec, numres, &dwt_decode_1); +} + + +/* <summary> */ +/* Get gain of 5-3 wavelet transform. */ +/* </summary> */ +int dwt_getgain(int orient) { + if (orient == 0) + return 0; + if (orient == 1 || orient == 2) + return 1; + return 2; +} + +/* <summary> */ +/* Get norm of 5-3 wavelet. */ +/* </summary> */ +double dwt_getnorm(int level, int orient) { + return dwt_norms[orient][level]; +} + +/* <summary> */ +/* Forward 9-7 wavelet transform in 2-D. */ +/* </summary> */ + +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; /* height 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); + } +} + + +/* <summary> */ +/* Get gain of 9-7 wavelet transform. */ +/* </summary> */ +int dwt_getgain_real(int orient) { + (void)orient; + return 0; +} + +/* <summary> */ +/* Get norm of 9-7 wavelet. */ +/* </summary> */ +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]); + } +} + + +/* <summary> */ +/* Determine maximum computed resolution level for inverse wavelet transform */ +/* </summary> */ +static int dwt_decode_max_resolution(opj_tcd_resolution_t* restrict 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 ; +} + + +/* <summary> */ +/* Inverse wavelet transform in 2-D. */ +/* </summary> */ +static void dwt_decode_tile(opj_tcd_tilecomp_t* tilec, int numres, DWT1DFN dwt_1D) { + dwt_t h; + dwt_t v; + + opj_tcd_resolution_t* tr = tilec->resolutions; + + int rw = tr->x1 - tr->x0; /* width of the resolution level computed */ + int rh = tr->y1 - tr->y0; /* height of the resolution level computed */ + + int w = tilec->x1 - tilec->x0; + + h.mem = opj_aligned_malloc(dwt_decode_max_resolution(tr, numres) * sizeof(int)); + v.mem = h.mem; + + while( --numres) { + int * restrict tiledp = tilec->data; + int j; + + ++tr; + h.sn = rw; + v.sn = rh; + + rw = tr->x1 - tr->x0; + rh = tr->y1 - tr->y0; + + h.dn = rw - h.sn; + h.cas = tr->x0 % 2; + + for(j = 0; j < rh; ++j) { + dwt_interleave_h(&h, &tiledp[j*w]); + (dwt_1D)(&h); + memcpy(&tiledp[j*w], h.mem, rw * sizeof(int)); + } + + v.dn = rh - v.sn; + v.cas = tr->y0 % 2; + + for(j = 0; j < rw; ++j){ + int k; + dwt_interleave_v(&v, &tiledp[j], w); + (dwt_1D)(&v); + for(k = 0; k < rh; ++k) { + tiledp[k * w + j] = v.mem[k]; + } + } + } + opj_aligned_free(h.mem); +} + +static void v4dwt_interleave_h(v4dwt_t* restrict w, float* restrict a, int x, int size){ + float* restrict bi = (float*) (w->wavelet + w->cas); + int count = w->sn; + int i, k; + for(k = 0; k < 2; ++k){ + for(i = 0; i < count; ++i){ + int j = i; + bi[i*8 ] = a[j]; + j += x; + if(j > size) continue; + bi[i*8 + 1] = a[j]; + j += x; + if(j > size) continue; + bi[i*8 + 2] = a[j]; + j += x; + if(j > size) continue; + bi[i*8 + 3] = a[j]; + } + bi = (float*) (w->wavelet + 1 - w->cas); + a += w->sn; + size -= w->sn; + count = w->dn; + } +} + +static void v4dwt_interleave_v(v4dwt_t* restrict v , float* restrict a , int x){ + v4* restrict bi = v->wavelet + v->cas; + int i; + for(i = 0; i < v->sn; ++i){ + memcpy(&bi[i*2], &a[i*x], 4 * sizeof(float)); + } + a += v->sn * x; + bi = v->wavelet + 1 - v->cas; + for(i = 0; i < v->dn; ++i){ + memcpy(&bi[i*2], &a[i*x], 4 * sizeof(float)); + } +} + +#ifdef __SSE__ + +static void v4dwt_decode_step1_sse(v4* w, int count, const __m128 c){ + __m128* restrict vw = (__m128*) w; + int i; + for(i = 0; i < count; ++i){ + __m128 tmp = vw[i*2]; + vw[i*2] = tmp * c; + } +} + +static void v4dwt_decode_step2_sse(v4* l, v4* w, int k, int m, __m128 c){ + __m128* restrict vl = (__m128*) l; + __m128* restrict vw = (__m128*) w; + int i; + for(i = 0; i < m; ++i){ + __m128 tmp1 = vl[ 0]; + __m128 tmp2 = vw[-1]; + __m128 tmp3 = vw[ 0]; + vw[-1] = tmp2 + ((tmp1 + tmp3) * c); + vl = vw; + vw += 2; + } + if(m >= k){ + return; + } + c += c; + c *= vl[0]; + for(; m < k; ++m){ + __m128 tmp = vw[-1]; + vw[-1] = tmp + c; + vw += 2; + } +} + +#else + +static void v4dwt_decode_step1(v4* w, int count, const float c){ + float* restrict fw = (float*) w; + int i; + for(i = 0; i < count; ++i){ + float tmp1 = fw[i*8 ]; + float tmp2 = fw[i*8 + 1]; + float tmp3 = fw[i*8 + 2]; + float tmp4 = fw[i*8 + 3]; + fw[i*8 ] = tmp1 * c; + fw[i*8 + 1] = tmp2 * c; + fw[i*8 + 2] = tmp3 * c; + fw[i*8 + 3] = tmp4 * c; + } +} + +static void v4dwt_decode_step2(v4* l, v4* w, int k, int m, float c){ + float* restrict fl = (float*) l; + float* restrict fw = (float*) w; + int i; + for(i = 0; i < m; ++i){ + float tmp1_1 = fl[0]; + float tmp1_2 = fl[1]; + float tmp1_3 = fl[2]; + float tmp1_4 = fl[3]; + float tmp2_1 = fw[-4]; + float tmp2_2 = fw[-3]; + float tmp2_3 = fw[-2]; + float tmp2_4 = fw[-1]; + float tmp3_1 = fw[0]; + float tmp3_2 = fw[1]; + float tmp3_3 = fw[2]; + float tmp3_4 = fw[3]; + fw[-4] = tmp2_1 + ((tmp1_1 + tmp3_1) * c); + fw[-3] = tmp2_2 + ((tmp1_2 + tmp3_2) * c); + fw[-2] = tmp2_3 + ((tmp1_3 + tmp3_3) * c); + fw[-1] = tmp2_4 + ((tmp1_4 + tmp3_4) * c); + fl = fw; + fw += 8; + } + if(m < k){ + float c1; + float c2; + float c3; + float c4; + c += c; + c1 = fl[0] * c; + c2 = fl[1] * c; + c3 = fl[2] * c; + c4 = fl[3] * c; + for(; m < k; ++m){ + float tmp1 = fw[-4]; + float tmp2 = fw[-3]; + float tmp3 = fw[-2]; + float tmp4 = fw[-1]; + fw[-4] = tmp1 + c1; + fw[-3] = tmp2 + c2; + fw[-2] = tmp3 + c3; + fw[-1] = tmp4 + c4; + fw += 8; + } + } +} + +#endif + +/* <summary> */ +/* Inverse 9-7 wavelet transform in 1-D. */ +/* </summary> */ +static void v4dwt_decode(v4dwt_t* restrict dwt){ + int a, b; + if(dwt->cas == 0) { + if(!((dwt->dn > 0) || (dwt->sn > 1))){ + return; + } + a = 0; + b = 1; + }else{ + if(!((dwt->sn > 0) || (dwt->dn > 1))) { + return; + } + a = 1; + b = 0; + } +#ifdef __SSE__ + v4dwt_decode_step1_sse(dwt->wavelet+a, dwt->sn, _mm_set1_ps(K)); + v4dwt_decode_step1_sse(dwt->wavelet+b, dwt->dn, _mm_set1_ps(c13318)); + v4dwt_decode_step2_sse(dwt->wavelet+b, dwt->wavelet+a+1, dwt->sn, int_min(dwt->sn, dwt->dn-a), _mm_set1_ps(dwt_delta)); + v4dwt_decode_step2_sse(dwt->wavelet+a, dwt->wavelet+b+1, dwt->dn, int_min(dwt->dn, dwt->sn-b), _mm_set1_ps(dwt_gamma)); + v4dwt_decode_step2_sse(dwt->wavelet+b, dwt->wavelet+a+1, dwt->sn, int_min(dwt->sn, dwt->dn-a), _mm_set1_ps(dwt_beta)); + v4dwt_decode_step2_sse(dwt->wavelet+a, dwt->wavelet+b+1, dwt->dn, int_min(dwt->dn, dwt->sn-b), _mm_set1_ps(dwt_alpha)); +#else + v4dwt_decode_step1(dwt->wavelet+a, dwt->sn, K); + v4dwt_decode_step1(dwt->wavelet+b, dwt->dn, c13318); + v4dwt_decode_step2(dwt->wavelet+b, dwt->wavelet+a+1, dwt->sn, int_min(dwt->sn, dwt->dn-a), dwt_delta); + v4dwt_decode_step2(dwt->wavelet+a, dwt->wavelet+b+1, dwt->dn, int_min(dwt->dn, dwt->sn-b), dwt_gamma); + v4dwt_decode_step2(dwt->wavelet+b, dwt->wavelet+a+1, dwt->sn, int_min(dwt->sn, dwt->dn-a), dwt_beta); + v4dwt_decode_step2(dwt->wavelet+a, dwt->wavelet+b+1, dwt->dn, int_min(dwt->dn, dwt->sn-b), dwt_alpha); +#endif +} + +/* <summary> */ +/* Inverse 9-7 wavelet transform in 2-D. */ +/* </summary> */ +void dwt_decode_real(opj_tcd_tilecomp_t* restrict tilec, int numres){ + v4dwt_t h; + v4dwt_t v; + + opj_tcd_resolution_t* res = tilec->resolutions; + + int rw = res->x1 - res->x0; /* width of the resolution level computed */ + int rh = res->y1 - res->y0; /* height of the resolution level computed */ + + int w = tilec->x1 - tilec->x0; + + h.wavelet = (v4*) opj_aligned_malloc((dwt_decode_max_resolution(res, numres)+5) * sizeof(v4)); + v.wavelet = h.wavelet; + + while( --numres) { + float * restrict aj = (float*) tilec->data; + int bufsize = (tilec->x1 - tilec->x0) * (tilec->y1 - tilec->y0); + int j; + + h.sn = rw; + v.sn = rh; + + ++res; + + rw = res->x1 - res->x0; /* width of the resolution level computed */ + rh = res->y1 - res->y0; /* height of the resolution level computed */ + + h.dn = rw - h.sn; + h.cas = res->x0 % 2; + + for(j = rh; j > 0; j -= 4){ + v4dwt_interleave_h(&h, aj, w, bufsize); + v4dwt_decode(&h); + if(j >= 4){ + int k; + for(k = rw; --k >= 0;){ + aj[k ] = h.wavelet[k].f[0]; + aj[k+w ] = h.wavelet[k].f[1]; + aj[k+w*2] = h.wavelet[k].f[2]; + aj[k+w*3] = h.wavelet[k].f[3]; + } + }else{ + int k; + for(k = rw; --k >= 0;){ + switch(j) { + case 3: aj[k+w*2] = h.wavelet[k].f[2]; + case 2: aj[k+w ] = h.wavelet[k].f[1]; + case 1: aj[k ] = h.wavelet[k].f[0]; + } + } + } + aj += w*4; + bufsize -= w*4; + } + + v.dn = rh - v.sn; + v.cas = res->y0 % 2; + + aj = (float*) tilec->data; + for(j = rw; j > 0; j -= 4){ + v4dwt_interleave_v(&v, aj, w); + v4dwt_decode(&v); + if(j >= 4){ + int k; + for(k = 0; k < rh; ++k){ + memcpy(&aj[k*w], &v.wavelet[k], 4 * sizeof(float)); + } + }else{ + int k; + for(k = 0; k < rh; ++k){ + memcpy(&aj[k*w], &v.wavelet[k], j * sizeof(float)); + } + } + aj += 4; + } + } + + opj_aligned_free(h.wavelet); +} + |