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Diffstat (limited to 'src/lib/openjp2/dwt.c')
-rw-r--r--src/lib/openjp2/dwt.c923
1 files changed, 768 insertions, 155 deletions
diff --git a/src/lib/openjp2/dwt.c b/src/lib/openjp2/dwt.c
index f3994ca7..b8bbe20a 100644
--- a/src/lib/openjp2/dwt.c
+++ b/src/lib/openjp2/dwt.c
@@ -82,9 +82,9 @@
typedef struct dwt_local {
OPJ_INT32* mem;
- OPJ_INT32 dn;
- OPJ_INT32 sn;
- OPJ_INT32 cas;
+ OPJ_INT32 dn; /* number of elements in high pass band */
+ OPJ_INT32 sn; /* number of elements in low pass band */
+ OPJ_INT32 cas; /* 0 = start on even coord, 1 = start on odd coord */
} opj_dwt_t;
typedef union {
@@ -93,9 +93,13 @@ typedef union {
typedef struct v4dwt_local {
opj_v4_t* wavelet ;
- OPJ_INT32 dn ;
- OPJ_INT32 sn ;
- OPJ_INT32 cas ;
+ OPJ_INT32 dn ; /* number of elements in high pass band */
+ OPJ_INT32 sn ; /* number of elements in low pass band */
+ OPJ_INT32 cas ; /* 0 = start on even coord, 1 = start on odd coord */
+ OPJ_UINT32 win_l_x0; /* start coord in low pass band */
+ OPJ_UINT32 win_l_x1; /* end coord in low pass band */
+ OPJ_UINT32 win_h_x0; /* start coord in high pass band */
+ OPJ_UINT32 win_h_x1; /* end coord in high pass band */
} opj_v4dwt_t ;
static const OPJ_FLOAT32 opj_dwt_alpha = 1.586134342f; /* 12994 */
@@ -147,6 +151,10 @@ Inverse wavelet transform in 2-D.
static OPJ_BOOL opj_dwt_decode_tile(opj_thread_pool_t* tp,
opj_tcd_tilecomp_t* tilec, OPJ_UINT32 i);
+static OPJ_BOOL opj_dwt_decode_partial_tile(opj_tcd_t *p_tcd,
+ opj_tcd_tilecomp_t* tilec,
+ OPJ_UINT32 numres);
+
static OPJ_BOOL opj_dwt_encode_procedure(opj_tcd_tilecomp_t * tilec,
void (*p_function)(OPJ_INT32 *, OPJ_INT32, OPJ_INT32, OPJ_INT32));
@@ -158,25 +166,38 @@ static OPJ_UINT32 opj_dwt_max_resolution(opj_tcd_resolution_t* OPJ_RESTRICT r,
/* </summary> */
static void opj_v4dwt_decode(opj_v4dwt_t* OPJ_RESTRICT dwt);
-static void opj_v4dwt_interleave_h(opj_v4dwt_t* OPJ_RESTRICT w,
- OPJ_FLOAT32* OPJ_RESTRICT a, OPJ_INT32 x, OPJ_INT32 size);
+static void opj_v4dwt_interleave_h(opj_v4dwt_t* OPJ_RESTRICT dwt,
+ OPJ_FLOAT32* OPJ_RESTRICT a,
+ OPJ_UINT32 width,
+ OPJ_UINT32 remaining_height);
-static void opj_v4dwt_interleave_v(opj_v4dwt_t* OPJ_RESTRICT v,
- OPJ_FLOAT32* OPJ_RESTRICT a, OPJ_INT32 x, OPJ_INT32 nb_elts_read);
+static void opj_v4dwt_interleave_v(opj_v4dwt_t* OPJ_RESTRICT dwt,
+ OPJ_FLOAT32* OPJ_RESTRICT a,
+ OPJ_UINT32 width,
+ OPJ_UINT32 nb_elts_read);
#ifdef __SSE__
-static void opj_v4dwt_decode_step1_sse(opj_v4_t* w, OPJ_INT32 count,
+static void opj_v4dwt_decode_step1_sse(opj_v4_t* w,
+ OPJ_UINT32 start,
+ OPJ_UINT32 end,
const __m128 c);
-static void opj_v4dwt_decode_step2_sse(opj_v4_t* l, opj_v4_t* w, OPJ_INT32 k,
- OPJ_INT32 m, __m128 c);
+static void opj_v4dwt_decode_step2_sse(opj_v4_t* l, opj_v4_t* w,
+ OPJ_UINT32 start,
+ OPJ_UINT32 end,
+ OPJ_UINT32 m, __m128 c);
#else
-static void opj_v4dwt_decode_step1(opj_v4_t* w, OPJ_INT32 count,
+static void opj_v4dwt_decode_step1(opj_v4_t* w,
+ OPJ_UINT32 start,
+ OPJ_UINT32 end,
const OPJ_FLOAT32 c);
-static void opj_v4dwt_decode_step2(opj_v4_t* l, opj_v4_t* w, OPJ_INT32 k,
- OPJ_INT32 m, OPJ_FLOAT32 c);
+static void opj_v4dwt_decode_step2(opj_v4_t* l, opj_v4_t* w,
+ OPJ_UINT32 start,
+ OPJ_UINT32 end,
+ OPJ_UINT32 m,
+ OPJ_FLOAT32 c);
#endif
@@ -1173,13 +1194,41 @@ OPJ_BOOL opj_dwt_encode(opj_tcd_tilecomp_t * tilec)
return opj_dwt_encode_procedure(tilec, opj_dwt_encode_1);
}
+static OPJ_BOOL opj_dwt_is_whole_tile_decoding(opj_tcd_t *p_tcd,
+ opj_tcd_tilecomp_t* tilec)
+{
+ opj_image_comp_t* image_comp = &(p_tcd->image->comps[tilec->compno]);
+ /* Compute the intersection of the area of interest, expressed in tile coordinates */
+ /* with the tile coordinates */
+ OPJ_UINT32 tcx0 = opj_uint_max(
+ (OPJ_UINT32)tilec->x0,
+ opj_uint_ceildiv(p_tcd->decoded_x0, image_comp->dx));
+ OPJ_UINT32 tcy0 = opj_uint_max(
+ (OPJ_UINT32)tilec->y0,
+ opj_uint_ceildiv(p_tcd->decoded_y0, image_comp->dy));
+ OPJ_UINT32 tcx1 = opj_uint_min(
+ (OPJ_UINT32)tilec->x1,
+ opj_uint_ceildiv(p_tcd->decoded_x1, image_comp->dx));
+ OPJ_UINT32 tcy1 = opj_uint_min(
+ (OPJ_UINT32)tilec->y1,
+ opj_uint_ceildiv(p_tcd->decoded_y1, image_comp->dy));
+ return (tcx0 == (OPJ_UINT32)tilec->x0 &&
+ tcy0 == (OPJ_UINT32)tilec->y0 &&
+ tcx1 == (OPJ_UINT32)tilec->x1 &&
+ tcy1 == (OPJ_UINT32)tilec->y1);
+}
+
/* <summary> */
/* Inverse 5-3 wavelet transform in 2-D. */
/* </summary> */
-OPJ_BOOL opj_dwt_decode(opj_thread_pool_t* tp, opj_tcd_tilecomp_t* tilec,
+OPJ_BOOL opj_dwt_decode(opj_tcd_t *p_tcd, opj_tcd_tilecomp_t* tilec,
OPJ_UINT32 numres)
{
- return opj_dwt_decode_tile(tp, tilec, numres);
+ if (opj_dwt_is_whole_tile_decoding(p_tcd, tilec)) {
+ return opj_dwt_decode_tile(p_tcd->thread_pool, tilec, numres);
+ } else {
+ return opj_dwt_decode_partial_tile(p_tcd, tilec, numres);
+ }
}
@@ -1491,136 +1540,461 @@ static OPJ_BOOL opj_dwt_decode_tile(opj_thread_pool_t* tp,
return OPJ_TRUE;
}
-static void opj_v4dwt_interleave_h(opj_v4dwt_t* OPJ_RESTRICT w,
- OPJ_FLOAT32* OPJ_RESTRICT a, OPJ_INT32 x, OPJ_INT32 size)
+static void opj_dwt_interleave_partial_h(OPJ_INT32 *dest,
+ OPJ_INT32 cas,
+ const OPJ_INT32* src,
+ OPJ_INT32 sn,
+ OPJ_INT32 win_l_x0,
+ OPJ_INT32 win_l_x1,
+ OPJ_INT32 win_h_x0,
+ OPJ_INT32 win_h_x1)
+{
+ const OPJ_INT32 *ai = src;
+ OPJ_INT32 *bi = dest + cas;
+ OPJ_INT32 i;
+
+ for (i = win_l_x0; i < win_l_x1; i++) {
+ bi[2 * i] = ai[i];
+ }
+
+ ai = src + sn;
+ bi = dest + 1 - cas;
+ for (i = win_h_x0; i < win_h_x1; i++) {
+ bi[2 * i] = ai[i];
+ }
+}
+
+static void opj_dwt_interleave_partial_v(OPJ_INT32 *dest,
+ OPJ_INT32 cas,
+ const OPJ_INT32* src,
+ OPJ_INT32 sn,
+ OPJ_INT32 stride,
+ OPJ_INT32 win_l_y0,
+ OPJ_INT32 win_l_y1,
+ OPJ_INT32 win_h_y0,
+ OPJ_INT32 win_h_y1)
+{
+ const OPJ_INT32 *ai = src;
+ OPJ_INT32 *bi = dest + cas;
+ OPJ_INT32 i;
+
+ for (i = win_l_y0; i < win_l_y1; i++) {
+ bi[2 * i] = ai[i * stride];
+ }
+
+ ai = src + sn * stride;
+ bi = dest + 1 - cas;
+ for (i = win_h_y0; i < win_h_y1; i++) {
+ bi[2 * i] = ai[i * stride];
+ }
+}
+
+static void opj_dwt_decode_partial_1(OPJ_INT32 *a, OPJ_INT32 dn, OPJ_INT32 sn,
+ OPJ_INT32 cas,
+ OPJ_INT32 win_l_x0,
+ OPJ_INT32 win_l_x1,
+ OPJ_INT32 win_h_x0,
+ OPJ_INT32 win_h_x1)
+{
+ OPJ_INT32 i;
+
+ if (!cas) {
+ if ((dn > 0) || (sn > 1)) { /* NEW : CASE ONE ELEMENT */
+ for (i = win_l_x0; i < win_l_x1; i++) {
+ OPJ_S(i) -= (OPJ_D_(i - 1) + OPJ_D_(i) + 2) >> 2;
+ }
+ for (i = win_h_x0; i < win_h_x1; i++) {
+ OPJ_D(i) += (OPJ_S_(i) + OPJ_S_(i + 1)) >> 1;
+ }
+ }
+ } else {
+ if (!sn && dn == 1) { /* NEW : CASE ONE ELEMENT */
+ OPJ_S(0) /= 2;
+ } else {
+ for (i = win_l_x0; i < win_l_x1; i++) {
+ OPJ_D(i) -= (OPJ_SS_(i) + OPJ_SS_(i + 1) + 2) >> 2;
+ }
+ for (i = win_h_x0; i < win_h_x1; i++) {
+ OPJ_S(i) += (OPJ_DD_(i) + OPJ_DD_(i - 1)) >> 1;
+ }
+ }
+ }
+}
+
+static void opj_dwt_get_band_coordinates(opj_tcd_tilecomp_t* tilec,
+ OPJ_UINT32 resno,
+ OPJ_UINT32 bandno,
+ OPJ_UINT32 tcx0,
+ OPJ_UINT32 tcy0,
+ OPJ_UINT32 tcx1,
+ OPJ_UINT32 tcy1,
+ OPJ_UINT32* tbx0,
+ OPJ_UINT32* tby0,
+ OPJ_UINT32* tbx1,
+ OPJ_UINT32* tby1)
{
- OPJ_FLOAT32* OPJ_RESTRICT bi = (OPJ_FLOAT32*)(w->wavelet + w->cas);
- OPJ_INT32 count = w->sn;
- OPJ_INT32 i, k;
+ /* Compute number of decomposition for this band. See table F-1 */
+ OPJ_UINT32 nb = (resno == 0) ?
+ tilec->numresolutions - 1 :
+ tilec->numresolutions - resno;
+ /* Map above tile-based coordinates to sub-band-based coordinates per */
+ /* equation B-15 of the standard */
+ OPJ_UINT32 x0b = bandno & 1;
+ OPJ_UINT32 y0b = bandno >> 1;
+ if (tbx0) {
+ *tbx0 = (nb == 0) ? tcx0 : opj_uint_ceildiv(tcx0 - (1U <<
+ (nb - 1)) * x0b, 1U << nb);
+ }
+ if (tby0) {
+ *tby0 = (nb == 0) ? tcy0 : opj_uint_ceildiv(tcy0 - (1U <<
+ (nb - 1)) * y0b, 1U << nb);
+ }
+ if (tbx1) {
+ *tbx1 = (nb == 0) ? tcx1 : opj_uint_ceildiv(tcx1 - (1U <<
+ (nb - 1)) * x0b, 1U << nb);
+ }
+ if (tby1) {
+ *tby1 = (nb == 0) ? tcy1 : opj_uint_ceildiv(tcy1 - (1U <<
+ (nb - 1)) * y0b, 1U << nb);
+ }
+}
+
+static void opj_dwt_segment_grow(OPJ_UINT32 filter_width,
+ OPJ_UINT32 max_size,
+ OPJ_UINT32* start,
+ OPJ_UINT32* end)
+{
+ *start = opj_uint_subs(*start, filter_width);
+ *end = opj_uint_adds(*end, filter_width);
+ *end = opj_uint_min(*end, max_size);
+}
+
+static OPJ_BOOL opj_dwt_decode_partial_tile(opj_tcd_t *tcd,
+ opj_tcd_tilecomp_t* tilec,
+ OPJ_UINT32 numres)
+{
+ opj_dwt_t h;
+ opj_dwt_t v;
+ OPJ_UINT32 resno;
+ /* This value matches the maximum left/right extension given in tables */
+ /* F.2 and F.3 of the standard. */
+ const OPJ_UINT32 filter_width = 2U;
+
+ opj_tcd_resolution_t* tr = tilec->resolutions;
+
+ OPJ_UINT32 rw = (OPJ_UINT32)(tr->x1 -
+ tr->x0); /* width of the resolution level computed */
+ OPJ_UINT32 rh = (OPJ_UINT32)(tr->y1 -
+ tr->y0); /* height of the resolution level computed */
+
+ OPJ_UINT32 w = (OPJ_UINT32)(tilec->x1 - tilec->x0);
+ size_t h_mem_size;
+
+ opj_image_comp_t* image_comp = &(tcd->image->comps[tilec->compno]);
+ /* Compute the intersection of the area of interest, expressed in tile coordinates */
+ /* with the tile coordinates */
+ OPJ_UINT32 win_tcx0 = opj_uint_max(
+ (OPJ_UINT32)tilec->x0,
+ opj_uint_ceildiv(tcd->decoded_x0, image_comp->dx));
+ OPJ_UINT32 win_tcy0 = opj_uint_max(
+ (OPJ_UINT32)tilec->y0,
+ opj_uint_ceildiv(tcd->decoded_y0, image_comp->dy));
+ OPJ_UINT32 win_tcx1 = opj_uint_min(
+ (OPJ_UINT32)tilec->x1,
+ opj_uint_ceildiv(tcd->decoded_x1, image_comp->dx));
+ OPJ_UINT32 win_tcy1 = opj_uint_min(
+ (OPJ_UINT32)tilec->y1,
+ opj_uint_ceildiv(tcd->decoded_y1, image_comp->dy));
+
+ if (numres == 1U) {
+ return OPJ_TRUE;
+ }
+ h_mem_size = opj_dwt_max_resolution(tr, numres);
+ /* overflow check */
+ if (h_mem_size > (SIZE_MAX / PARALLEL_COLS_53 / sizeof(OPJ_INT32))) {
+ /* FIXME event manager error callback */
+ return OPJ_FALSE;
+ }
+ /* We need PARALLEL_COLS_53 times the height of the array, */
+ /* since for the vertical pass */
+ /* we process PARALLEL_COLS_53 columns at a time */
+ h_mem_size *= PARALLEL_COLS_53 * sizeof(OPJ_INT32);
+ h.mem = (OPJ_INT32*)opj_aligned_32_malloc(h_mem_size);
+ if (! h.mem) {
+ /* FIXME event manager error callback */
+ return OPJ_FALSE;
+ }
+
+ v.mem = h.mem;
+
+ for (resno = 1; --numres > 0; resno ++) {
+ OPJ_INT32 * OPJ_RESTRICT tiledp = tilec->data;
+ OPJ_UINT32 i, j;
+ /* Window of interest subband-based coordinates */
+ OPJ_UINT32 win_ll_x0, win_ll_y0, win_ll_x1, win_ll_y1;
+ OPJ_UINT32 win_hl_x0, win_hl_x1;
+ OPJ_UINT32 win_lh_y0, win_lh_y1;
+ /* Window of interest tile-resolution-based coordinates */
+ OPJ_UINT32 win_tr_x0, win_tr_x1, win_tr_y0, win_tr_y1;
+ /* Tile-resolution subband-based coordinates */
+ OPJ_UINT32 tr_ll_x0, tr_ll_y0, tr_hl_x0, tr_lh_y0;
+
+ ++tr;
+
+ h.sn = (OPJ_INT32)rw;
+ v.sn = (OPJ_INT32)rh;
+
+ rw = (OPJ_UINT32)(tr->x1 - tr->x0);
+ rh = (OPJ_UINT32)(tr->y1 - tr->y0);
+
+ h.dn = (OPJ_INT32)(rw - (OPJ_UINT32)h.sn);
+ h.cas = tr->x0 % 2;
+
+ v.dn = (OPJ_INT32)(rh - (OPJ_UINT32)v.sn);
+ v.cas = tr->y0 % 2;
+
+ /* Get the subband coordinates for the window of interest */
+ /* LL band */
+ opj_dwt_get_band_coordinates(tilec, resno, 0,
+ win_tcx0, win_tcy0, win_tcx1, win_tcy1,
+ &win_ll_x0, &win_ll_y0,
+ &win_ll_x1, &win_ll_y1);
+
+ /* HL band */
+ opj_dwt_get_band_coordinates(tilec, resno, 1,
+ win_tcx0, win_tcy0, win_tcx1, win_tcy1,
+ &win_hl_x0, NULL, &win_hl_x1, NULL);
+
+ /* LH band */
+ opj_dwt_get_band_coordinates(tilec, resno, 2,
+ win_tcx0, win_tcy0, win_tcx1, win_tcy1,
+ NULL, &win_lh_y0, NULL, &win_lh_y1);
+
+ /* Beware: band index for non-LL0 resolution are 0=HL, 1=LH and 2=HH */
+ tr_ll_x0 = (OPJ_UINT32)tr->bands[1].x0;
+ tr_ll_y0 = (OPJ_UINT32)tr->bands[0].y0;
+ tr_hl_x0 = (OPJ_UINT32)tr->bands[0].x0;
+ tr_lh_y0 = (OPJ_UINT32)tr->bands[1].y0;
+
+ /* Substract the origin of the bands for this tile, to the subwindow */
+ /* of interest band coordinates, so as to get them relative to the */
+ /* tile */
+ win_ll_x0 = opj_uint_subs(win_ll_x0, tr_ll_x0);
+ win_ll_y0 = opj_uint_subs(win_ll_y0, tr_ll_y0);
+ win_ll_x1 = opj_uint_subs(win_ll_x1, tr_ll_x0);
+ win_ll_y1 = opj_uint_subs(win_ll_y1, tr_ll_y0);
+ win_hl_x0 = opj_uint_subs(win_hl_x0, tr_hl_x0);
+ win_hl_x1 = opj_uint_subs(win_hl_x1, tr_hl_x0);
+ win_lh_y0 = opj_uint_subs(win_lh_y0, tr_lh_y0);
+ win_lh_y1 = opj_uint_subs(win_lh_y1, tr_lh_y0);
+
+ opj_dwt_segment_grow(filter_width, (OPJ_UINT32)h.sn, &win_ll_x0, &win_ll_x1);
+ opj_dwt_segment_grow(filter_width, (OPJ_UINT32)h.dn, &win_hl_x0, &win_hl_x1);
+
+ opj_dwt_segment_grow(filter_width, (OPJ_UINT32)v.sn, &win_ll_y0, &win_ll_y1);
+ opj_dwt_segment_grow(filter_width, (OPJ_UINT32)v.dn, &win_lh_y0, &win_lh_y1);
+
+ /* Compute the tile-resolution-based coordinates for the window of interest */
+ if (h.cas == 0) {
+ win_tr_x0 = opj_uint_min(2 * win_ll_x0, 2 * win_hl_x0 + 1);
+ win_tr_x1 = opj_uint_min(opj_uint_max(2 * win_ll_x1, 2 * win_hl_x1 + 1), rw);
+ } else {
+ win_tr_x0 = opj_uint_min(2 * win_hl_x0, 2 * win_ll_x0 + 1);
+ win_tr_x1 = opj_uint_min(opj_uint_max(2 * win_hl_x1, 2 * win_ll_x1 + 1), rw);
+ }
+
+ if (v.cas == 0) {
+ win_tr_y0 = opj_uint_min(2 * win_ll_y0, 2 * win_lh_y0 + 1);
+ win_tr_y1 = opj_uint_min(opj_uint_max(2 * win_ll_y1, 2 * win_lh_y1 + 1), rh);
+ } else {
+ win_tr_y0 = opj_uint_min(2 * win_lh_y0, 2 * win_ll_y0 + 1);
+ win_tr_y1 = opj_uint_min(opj_uint_max(2 * win_lh_y1, 2 * win_ll_y1 + 1), rh);
+ }
+
+ for (j = 0; j < rh; ++j) {
+ if ((j >= win_ll_y0 && j < win_ll_y1) ||
+ (j >= win_lh_y0 + (OPJ_UINT32)v.sn && j < win_lh_y1 + (OPJ_UINT32)v.sn)) {
+ memset(h.mem, 0, (OPJ_UINT32)(h.sn + h.dn) * sizeof(OPJ_INT32));
+ opj_dwt_interleave_partial_h(h.mem,
+ h.cas,
+ &tiledp[j * w],
+ h.sn,
+ (OPJ_INT32)win_ll_x0,
+ (OPJ_INT32)win_ll_x1,
+ (OPJ_INT32)win_hl_x0,
+ (OPJ_INT32)win_hl_x1);
+ opj_dwt_decode_partial_1(h.mem, h.dn, h.sn, h.cas,
+ (OPJ_INT32)win_ll_x0,
+ (OPJ_INT32)win_ll_x1,
+ (OPJ_INT32)win_hl_x0,
+ (OPJ_INT32)win_hl_x1);
+ memcpy(&tiledp[j * w] + win_tr_x0, h.mem + win_tr_x0,
+ (win_tr_x1 - win_tr_x0) * sizeof(OPJ_INT32));
+ }
+ }
+
+ for (i = win_tr_x0; i < win_tr_x1; ++i) {
+ memset(v.mem, 0, (OPJ_UINT32)(v.sn + v.dn) * sizeof(OPJ_INT32));
+ opj_dwt_interleave_partial_v(v.mem,
+ v.cas,
+ tiledp + i,
+ v.sn,
+ (OPJ_INT32)w,
+ (OPJ_INT32)win_ll_y0,
+ (OPJ_INT32)win_ll_y1,
+ (OPJ_INT32)win_lh_y0,
+ (OPJ_INT32)win_lh_y1);
+ opj_dwt_decode_partial_1(v.mem, v.dn, v.sn, v.cas,
+ (OPJ_INT32)win_ll_y0,
+ (OPJ_INT32)win_ll_y1,
+ (OPJ_INT32)win_lh_y0,
+ (OPJ_INT32)win_lh_y1);
+ for (j = win_tr_y0; j < win_tr_y1; j++) {
+ tiledp[j * w + i] = v.mem[j];
+ }
+ }
+ }
+ opj_aligned_free(h.mem);
+ return OPJ_TRUE;
+}
+
+static void opj_v4dwt_interleave_h(opj_v4dwt_t* OPJ_RESTRICT dwt,
+ OPJ_FLOAT32* OPJ_RESTRICT a,
+ OPJ_UINT32 width,
+ OPJ_UINT32 remaining_height)
+{
+ OPJ_FLOAT32* OPJ_RESTRICT bi = (OPJ_FLOAT32*)(dwt->wavelet + dwt->cas);
+ OPJ_UINT32 i, k;
+ OPJ_UINT32 x0 = dwt->win_l_x0;
+ OPJ_UINT32 x1 = dwt->win_l_x1;
for (k = 0; k < 2; ++k) {
- if (count + 3 * x < size && ((size_t) a & 0x0f) == 0 &&
- ((size_t) bi & 0x0f) == 0 && (x & 0x0f) == 0) {
+ if (remaining_height >= 4 && ((size_t) a & 0x0f) == 0 &&
+ ((size_t) bi & 0x0f) == 0 && (width & 0x0f) == 0) {
/* Fast code path */
- for (i = 0; i < count; ++i) {
- OPJ_INT32 j = i;
+ for (i = x0; i < x1; ++i) {
+ OPJ_UINT32 j = i;
bi[i * 8 ] = a[j];
- j += x;
+ j += width;
bi[i * 8 + 1] = a[j];
- j += x;
+ j += width;
bi[i * 8 + 2] = a[j];
- j += x;
+ j += width;
bi[i * 8 + 3] = a[j];
}
} else {
/* Slow code path */
- for (i = 0; i < count; ++i) {
- OPJ_INT32 j = i;
+ for (i = x0; i < x1; ++i) {
+ OPJ_UINT32 j = i;
bi[i * 8 ] = a[j];
- j += x;
- if (j >= size) {
+ j += width;
+ if (remaining_height == 1) {
continue;
}
bi[i * 8 + 1] = a[j];
- j += x;
- if (j >= size) {
+ j += width;
+ if (remaining_height == 2) {
continue;
}
bi[i * 8 + 2] = a[j];
- j += x;
- if (j >= size) {
+ j += width;
+ if (remaining_height == 3) {
continue;
}
bi[i * 8 + 3] = a[j]; /* This one*/
}
}
- bi = (OPJ_FLOAT32*)(w->wavelet + 1 - w->cas);
- a += w->sn;
- size -= w->sn;
- count = w->dn;
+ bi = (OPJ_FLOAT32*)(dwt->wavelet + 1 - dwt->cas);
+ a += dwt->sn;
+ x0 = dwt->win_h_x0;
+ x1 = dwt->win_h_x1;
}
}
-static void opj_v4dwt_interleave_v(opj_v4dwt_t* OPJ_RESTRICT v,
- OPJ_FLOAT32* OPJ_RESTRICT a, OPJ_INT32 x, OPJ_INT32 nb_elts_read)
+static void opj_v4dwt_interleave_v(opj_v4dwt_t* OPJ_RESTRICT dwt,
+ OPJ_FLOAT32* OPJ_RESTRICT a,
+ OPJ_UINT32 width,
+ OPJ_UINT32 nb_elts_read)
{
- opj_v4_t* OPJ_RESTRICT bi = v->wavelet + v->cas;
- OPJ_INT32 i;
+ opj_v4_t* OPJ_RESTRICT bi = dwt->wavelet + dwt->cas;
+ OPJ_UINT32 i;
- for (i = 0; i < v->sn; ++i) {
- memcpy(&bi[i * 2], &a[i * x], (size_t)nb_elts_read * sizeof(OPJ_FLOAT32));
+ for (i = dwt->win_l_x0; i < dwt->win_l_x1; ++i) {
+ memcpy(&bi[i * 2], &a[i * width], (size_t)nb_elts_read * sizeof(OPJ_FLOAT32));
}
- a += v->sn * x;
- bi = v->wavelet + 1 - v->cas;
+ a += (OPJ_UINT32)dwt->sn * width;
+ bi = dwt->wavelet + 1 - dwt->cas;
- for (i = 0; i < v->dn; ++i) {
- memcpy(&bi[i * 2], &a[i * x], (size_t)nb_elts_read * sizeof(OPJ_FLOAT32));
+ for (i = dwt->win_h_x0; i < dwt->win_h_x1; ++i) {
+ memcpy(&bi[i * 2], &a[i * width], (size_t)nb_elts_read * sizeof(OPJ_FLOAT32));
}
}
#ifdef __SSE__
-static void opj_v4dwt_decode_step1_sse(opj_v4_t* w, OPJ_INT32 count,
+static void opj_v4dwt_decode_step1_sse(opj_v4_t* w,
+ OPJ_UINT32 start,
+ OPJ_UINT32 end,
const __m128 c)
{
__m128* OPJ_RESTRICT vw = (__m128*) w;
- OPJ_INT32 i;
+ OPJ_UINT32 i;
/* 4x unrolled loop */
- for (i = 0; i < count >> 2; ++i) {
- *vw = _mm_mul_ps(*vw, c);
- vw += 2;
- *vw = _mm_mul_ps(*vw, c);
- vw += 2;
- *vw = _mm_mul_ps(*vw, c);
- vw += 2;
- *vw = _mm_mul_ps(*vw, c);
- vw += 2;
+ for (i = start; i + 3 < end; i += 4) {
+ vw[2 * i] = _mm_mul_ps(vw[2 * i], c);
+ vw[2 * i + 2] = _mm_mul_ps(vw[2 * i + 2], c);
+ vw[2 * i + 4] = _mm_mul_ps(vw[2 * i + 4], c);
+ vw[2 * i + 6] = _mm_mul_ps(vw[2 * i + 6], c);
}
- count &= 3;
- for (i = 0; i < count; ++i) {
- *vw = _mm_mul_ps(*vw, c);
- vw += 2;
+ for (; i < end; ++i) {
+ vw[2 * i] = _mm_mul_ps(vw[2 * i], c);
}
}
-void opj_v4dwt_decode_step2_sse(opj_v4_t* l, opj_v4_t* w, OPJ_INT32 k,
- OPJ_INT32 m, __m128 c)
+static void opj_v4dwt_decode_step2_sse(opj_v4_t* l, opj_v4_t* w,
+ OPJ_UINT32 start,
+ OPJ_UINT32 end,
+ OPJ_UINT32 m,
+ __m128 c)
{
__m128* OPJ_RESTRICT vl = (__m128*) l;
__m128* OPJ_RESTRICT vw = (__m128*) w;
- OPJ_INT32 i;
+ OPJ_UINT32 i;
+ OPJ_UINT32 imax = opj_uint_min(end, m);
__m128 tmp1, tmp2, tmp3;
- tmp1 = vl[0];
- for (i = 0; i < m; ++i) {
+ if (start == 0) {
+ tmp1 = vl[0];
+ } else {
+ vw += start * 2;
+ tmp1 = vw[-3];
+ }
+ for (i = start; i < imax; ++i) {
tmp2 = vw[-1];
tmp3 = vw[ 0];
vw[-1] = _mm_add_ps(tmp2, _mm_mul_ps(_mm_add_ps(tmp1, tmp3), c));
tmp1 = tmp3;
vw += 2;
}
- vl = vw - 2;
- if (m >= k) {
- return;
- }
- c = _mm_add_ps(c, c);
- c = _mm_mul_ps(c, vl[0]);
- for (; m < k; ++m) {
- __m128 tmp = vw[-1];
- vw[-1] = _mm_add_ps(tmp, c);
- vw += 2;
+ if (m < end) {
+ assert(m + 1 == end);
+ c = _mm_add_ps(c, c);
+ c = _mm_mul_ps(c, vw[-2]);
+ vw[-1] = _mm_add_ps(vw[-1], c);
}
}
#else
-static void opj_v4dwt_decode_step1(opj_v4_t* w, OPJ_INT32 count,
+static void opj_v4dwt_decode_step1(opj_v4_t* w,
+ OPJ_UINT32 start,
+ OPJ_UINT32 end,
const OPJ_FLOAT32 c)
{
OPJ_FLOAT32* OPJ_RESTRICT fw = (OPJ_FLOAT32*) w;
- OPJ_INT32 i;
- for (i = 0; i < count; ++i) {
+ OPJ_UINT32 i;
+ for (i = start; i < end; ++i) {
OPJ_FLOAT32 tmp1 = fw[i * 8 ];
OPJ_FLOAT32 tmp2 = fw[i * 8 + 1];
OPJ_FLOAT32 tmp3 = fw[i * 8 + 2];
@@ -1632,13 +2006,21 @@ static void opj_v4dwt_decode_step1(opj_v4_t* w, OPJ_INT32 count,
}
}
-static void opj_v4dwt_decode_step2(opj_v4_t* l, opj_v4_t* w, OPJ_INT32 k,
- OPJ_INT32 m, OPJ_FLOAT32 c)
+static void opj_v4dwt_decode_step2(opj_v4_t* l, opj_v4_t* w,
+ OPJ_UINT32 start,
+ OPJ_UINT32 end,
+ OPJ_UINT32 m,
+ OPJ_FLOAT32 c)
{
OPJ_FLOAT32* fl = (OPJ_FLOAT32*) l;
OPJ_FLOAT32* fw = (OPJ_FLOAT32*) w;
- OPJ_INT32 i;
- for (i = 0; i < m; ++i) {
+ OPJ_UINT32 i;
+ OPJ_UINT32 imax = opj_uint_min(end, m);
+ if (start > 0) {
+ fw += 8 * start;
+ fl = fw - 8;
+ }
+ for (i = start; i < imax; ++i) {
OPJ_FLOAT32 tmp1_1 = fl[0];
OPJ_FLOAT32 tmp1_2 = fl[1];
OPJ_FLOAT32 tmp1_3 = fl[2];
@@ -1658,27 +2040,13 @@ static void opj_v4dwt_decode_step2(opj_v4_t* l, opj_v4_t* w, OPJ_INT32 k,
fl = fw;
fw += 8;
}
- if (m < k) {
- OPJ_FLOAT32 c1;
- OPJ_FLOAT32 c2;
- OPJ_FLOAT32 c3;
- OPJ_FLOAT32 c4;
+ if (m < end) {
+ assert(m + 1 == end);
c += c;
- c1 = fl[0] * c;
- c2 = fl[1] * c;
- c3 = fl[2] * c;
- c4 = fl[3] * c;
- for (; m < k; ++m) {
- OPJ_FLOAT32 tmp1 = fw[-4];
- OPJ_FLOAT32 tmp2 = fw[-3];
- OPJ_FLOAT32 tmp3 = fw[-2];
- OPJ_FLOAT32 tmp4 = fw[-1];
- fw[-4] = tmp1 + c1;
- fw[-3] = tmp2 + c2;
- fw[-2] = tmp3 + c3;
- fw[-1] = tmp4 + c4;
- fw += 8;
- }
+ fw[-4] = fw[-4] + fl[0] * c;
+ fw[-3] = fw[-3] + fl[1] * c;
+ fw[-2] = fw[-2] + fl[2] * c;
+ fw[-1] = fw[-1] + fl[3] * c;
}
}
@@ -1704,27 +2072,47 @@ static void opj_v4dwt_decode(opj_v4dwt_t* OPJ_RESTRICT dwt)
b = 0;
}
#ifdef __SSE__
- opj_v4dwt_decode_step1_sse(dwt->wavelet + a, dwt->sn, _mm_set1_ps(opj_K));
- opj_v4dwt_decode_step1_sse(dwt->wavelet + b, dwt->dn, _mm_set1_ps(opj_c13318));
- opj_v4dwt_decode_step2_sse(dwt->wavelet + b, dwt->wavelet + a + 1, dwt->sn,
- opj_int_min(dwt->sn, dwt->dn - a), _mm_set1_ps(opj_dwt_delta));
- opj_v4dwt_decode_step2_sse(dwt->wavelet + a, dwt->wavelet + b + 1, dwt->dn,
- opj_int_min(dwt->dn, dwt->sn - b), _mm_set1_ps(opj_dwt_gamma));
- opj_v4dwt_decode_step2_sse(dwt->wavelet + b, dwt->wavelet + a + 1, dwt->sn,
- opj_int_min(dwt->sn, dwt->dn - a), _mm_set1_ps(opj_dwt_beta));
- opj_v4dwt_decode_step2_sse(dwt->wavelet + a, dwt->wavelet + b + 1, dwt->dn,
- opj_int_min(dwt->dn, dwt->sn - b), _mm_set1_ps(opj_dwt_alpha));
+ opj_v4dwt_decode_step1_sse(dwt->wavelet + a, dwt->win_l_x0, dwt->win_l_x1,
+ _mm_set1_ps(opj_K));
+ opj_v4dwt_decode_step1_sse(dwt->wavelet + b, dwt->win_h_x0, dwt->win_h_x1,
+ _mm_set1_ps(opj_c13318));
+ opj_v4dwt_decode_step2_sse(dwt->wavelet + b, dwt->wavelet + a + 1,
+ dwt->win_l_x0, dwt->win_l_x1,
+ (OPJ_UINT32)opj_int_min(dwt->sn, dwt->dn - a),
+ _mm_set1_ps(opj_dwt_delta));
+ opj_v4dwt_decode_step2_sse(dwt->wavelet + a, dwt->wavelet + b + 1,
+ dwt->win_h_x0, dwt->win_h_x1,
+ (OPJ_UINT32)opj_int_min(dwt->dn, dwt->sn - b),
+ _mm_set1_ps(opj_dwt_gamma));
+ opj_v4dwt_decode_step2_sse(dwt->wavelet + b, dwt->wavelet + a + 1,
+ dwt->win_l_x0, dwt->win_l_x1,
+ (OPJ_UINT32)opj_int_min(dwt->sn, dwt->dn - a),
+ _mm_set1_ps(opj_dwt_beta));
+ opj_v4dwt_decode_step2_sse(dwt->wavelet + a, dwt->wavelet + b + 1,
+ dwt->win_h_x0, dwt->win_h_x1,
+ (OPJ_UINT32)opj_int_min(dwt->dn, dwt->sn - b),
+ _mm_set1_ps(opj_dwt_alpha));
#else
- opj_v4dwt_decode_step1(dwt->wavelet + a, dwt->sn, opj_K);
- opj_v4dwt_decode_step1(dwt->wavelet + b, dwt->dn, opj_c13318);
- opj_v4dwt_decode_step2(dwt->wavelet + b, dwt->wavelet + a + 1, dwt->sn,
- opj_int_min(dwt->sn, dwt->dn - a), opj_dwt_delta);
- opj_v4dwt_decode_step2(dwt->wavelet + a, dwt->wavelet + b + 1, dwt->dn,
- opj_int_min(dwt->dn, dwt->sn - b), opj_dwt_gamma);
- opj_v4dwt_decode_step2(dwt->wavelet + b, dwt->wavelet + a + 1, dwt->sn,
- opj_int_min(dwt->sn, dwt->dn - a), opj_dwt_beta);
- opj_v4dwt_decode_step2(dwt->wavelet + a, dwt->wavelet + b + 1, dwt->dn,
- opj_int_min(dwt->dn, dwt->sn - b), opj_dwt_alpha);
+ opj_v4dwt_decode_step1(dwt->wavelet + a, dwt->win_l_x0, dwt->win_l_x1,
+ opj_K);
+ opj_v4dwt_decode_step1(dwt->wavelet + b, dwt->win_h_x0, dwt->win_h_x1,
+ opj_c13318);
+ opj_v4dwt_decode_step2(dwt->wavelet + b, dwt->wavelet + a + 1,
+ dwt->win_l_x0, dwt->win_l_x1,
+ (OPJ_UINT32)opj_int_min(dwt->sn, dwt->dn - a),
+ opj_dwt_delta);
+ opj_v4dwt_decode_step2(dwt->wavelet + a, dwt->wavelet + b + 1,
+ dwt->win_h_x0, dwt->win_h_x1,
+ (OPJ_UINT32)opj_int_min(dwt->dn, dwt->sn - b),
+ opj_dwt_gamma);
+ opj_v4dwt_decode_step2(dwt->wavelet + b, dwt->wavelet + a + 1,
+ dwt->win_l_x0, dwt->win_l_x1,
+ (OPJ_UINT32)opj_int_min(dwt->sn, dwt->dn - a),
+ opj_dwt_beta);
+ opj_v4dwt_decode_step2(dwt->wavelet + a, dwt->wavelet + b + 1,
+ dwt->win_h_x0, dwt->win_h_x1,
+ (OPJ_UINT32)opj_int_min(dwt->dn, dwt->sn - b),
+ opj_dwt_alpha);
#endif
}
@@ -1732,8 +2120,9 @@ static void opj_v4dwt_decode(opj_v4dwt_t* OPJ_RESTRICT dwt)
/* <summary> */
/* Inverse 9-7 wavelet transform in 2-D. */
/* </summary> */
-OPJ_BOOL opj_dwt_decode_real(opj_tcd_tilecomp_t* OPJ_RESTRICT tilec,
- OPJ_UINT32 numres)
+static
+OPJ_BOOL opj_dwt_decode_tile_97(opj_tcd_tilecomp_t* OPJ_RESTRICT tilec,
+ OPJ_UINT32 numres)
{
opj_v4dwt_t h;
opj_v4dwt_t v;
@@ -1770,9 +2159,7 @@ OPJ_BOOL opj_dwt_decode_real(opj_tcd_tilecomp_t* OPJ_RESTRICT tilec,
while (--numres) {
OPJ_FLOAT32 * OPJ_RESTRICT aj = (OPJ_FLOAT32*) tilec->data;
- OPJ_UINT32 bufsize = (OPJ_UINT32)((tilec->x1 - tilec->x0) *
- (tilec->y1 - tilec->y0));
- OPJ_INT32 j;
+ OPJ_UINT32 j;
h.sn = (OPJ_INT32)rw;
v.sn = (OPJ_INT32)rh;
@@ -1787,49 +2174,55 @@ OPJ_BOOL opj_dwt_decode_real(opj_tcd_tilecomp_t* OPJ_RESTRICT tilec,
h.dn = (OPJ_INT32)(rw - (OPJ_UINT32)h.sn);
h.cas = res->x0 % 2;
- for (j = (OPJ_INT32)rh; j > 3; j -= 4) {
- OPJ_INT32 k;
- opj_v4dwt_interleave_h(&h, aj, (OPJ_INT32)w, (OPJ_INT32)bufsize);
+ h.win_l_x0 = 0;
+ h.win_l_x1 = (OPJ_UINT32)h.sn;
+ h.win_h_x0 = 0;
+ h.win_h_x1 = (OPJ_UINT32)h.dn;
+ for (j = 0; j + 3 < rh; j += 4) {
+ OPJ_UINT32 k;
+ opj_v4dwt_interleave_h(&h, aj, w, rh - j);
opj_v4dwt_decode(&h);
- for (k = (OPJ_INT32)rw; --k >= 0;) {
- aj[k ] = h.wavelet[k].f[0];
- aj[k + (OPJ_INT32)w ] = h.wavelet[k].f[1];
- aj[k + (OPJ_INT32)w * 2] = h.wavelet[k].f[2];
- aj[k + (OPJ_INT32)w * 3] = h.wavelet[k].f[3];
+ for (k = 0; k < rw; k++) {
+ 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];
}
aj += w * 4;
- bufsize -= w * 4;
}
- if (rh & 0x03) {
- OPJ_INT32 k;
- j = rh & 0x03;
- opj_v4dwt_interleave_h(&h, aj, (OPJ_INT32)w, (OPJ_INT32)bufsize);
+ if (j < rh) {
+ OPJ_UINT32 k;
+ opj_v4dwt_interleave_h(&h, aj, w, rh - j);
opj_v4dwt_decode(&h);
- for (k = (OPJ_INT32)rw; --k >= 0;) {
- switch (j) {
+ for (k = 0; k < rw; k++) {
+ switch (rh - j) {
case 3:
- aj[k + (OPJ_INT32)w * 2] = h.wavelet[k].f[2];
+ aj[k + w * 2] = h.wavelet[k].f[2];
/* FALLTHRU */
case 2:
- aj[k + (OPJ_INT32)w ] = h.wavelet[k].f[1];
+ aj[k + w ] = h.wavelet[k].f[1];
/* FALLTHRU */
case 1:
- aj[k ] = h.wavelet[k].f[0];
+ aj[k] = h.wavelet[k].f[0];
}
}
}
v.dn = (OPJ_INT32)(rh - (OPJ_UINT32)v.sn);
v.cas = res->y0 % 2;
+ v.win_l_x0 = 0;
+ v.win_l_x1 = (OPJ_UINT32)v.sn;
+ v.win_h_x0 = 0;
+ v.win_h_x1 = (OPJ_UINT32)v.dn;
aj = (OPJ_FLOAT32*) tilec->data;
- for (j = (OPJ_INT32)rw; j > 3; j -= 4) {
+ for (j = rw; j > 3; j -= 4) {
OPJ_UINT32 k;
- opj_v4dwt_interleave_v(&v, aj, (OPJ_INT32)w, 4);
+ opj_v4dwt_interleave_v(&v, aj, w, 4);
opj_v4dwt_decode(&v);
for (k = 0; k < rh; ++k) {
@@ -1843,7 +2236,7 @@ OPJ_BOOL opj_dwt_decode_real(opj_tcd_tilecomp_t* OPJ_RESTRICT tilec,
j = rw & 0x03;
- opj_v4dwt_interleave_v(&v, aj, (OPJ_INT32)w, j);
+ opj_v4dwt_interleave_v(&v, aj, w, j);
opj_v4dwt_decode(&v);
for (k = 0; k < rh; ++k) {
@@ -1855,3 +2248,223 @@ OPJ_BOOL opj_dwt_decode_real(opj_tcd_tilecomp_t* OPJ_RESTRICT tilec,
opj_aligned_free(h.wavelet);
return OPJ_TRUE;
}
+
+static
+OPJ_BOOL opj_dwt_decode_partial_97(opj_tcd_t *tcd,
+ opj_tcd_tilecomp_t* OPJ_RESTRICT tilec,
+ OPJ_UINT32 numres)
+{
+ opj_v4dwt_t h;
+ opj_v4dwt_t v;
+ OPJ_UINT32 resno;
+ /* This value matches the maximum left/right extension given in tables */
+ /* F.2 and F.3 of the standard. Note: in opj_tcd_is_subband_area_of_interest() */
+ /* we currently use 3. */
+ const OPJ_UINT32 filter_width = 4U;
+
+ opj_tcd_resolution_t* tr = tilec->resolutions;
+
+ OPJ_UINT32 rw = (OPJ_UINT32)(tr->x1 -
+ tr->x0); /* width of the resolution level computed */
+ OPJ_UINT32 rh = (OPJ_UINT32)(tr->y1 -
+ tr->y0); /* height of the resolution level computed */
+
+ OPJ_UINT32 w = (OPJ_UINT32)(tilec->x1 - tilec->x0);
+
+ size_t l_data_size;
+
+ opj_image_comp_t* image_comp = &(tcd->image->comps[tilec->compno]);
+ /* Compute the intersection of the area of interest, expressed in tile coordinates */
+ /* with the tile coordinates */
+ OPJ_UINT32 win_tcx0 = opj_uint_max(
+ (OPJ_UINT32)tilec->x0,
+ opj_uint_ceildiv(tcd->decoded_x0, image_comp->dx));
+ OPJ_UINT32 win_tcy0 = opj_uint_max(
+ (OPJ_UINT32)tilec->y0,
+ opj_uint_ceildiv(tcd->decoded_y0, image_comp->dy));
+ OPJ_UINT32 win_tcx1 = opj_uint_min(
+ (OPJ_UINT32)tilec->x1,
+ opj_uint_ceildiv(tcd->decoded_x1, image_comp->dx));
+ OPJ_UINT32 win_tcy1 = opj_uint_min(
+ (OPJ_UINT32)tilec->y1,
+ opj_uint_ceildiv(tcd->decoded_y1, image_comp->dy));
+
+ l_data_size = opj_dwt_max_resolution(tr, numres);
+ /* overflow check */
+ if (l_data_size > (SIZE_MAX - 5U)) {
+ /* FIXME event manager error callback */
+ return OPJ_FALSE;
+ }
+ l_data_size += 5U;
+ /* overflow check */
+ if (l_data_size > (SIZE_MAX / sizeof(opj_v4_t))) {
+ /* FIXME event manager error callback */
+ return OPJ_FALSE;
+ }
+ h.wavelet = (opj_v4_t*) opj_aligned_malloc(l_data_size * sizeof(opj_v4_t));
+ if (!h.wavelet) {
+ /* FIXME event manager error callback */
+ return OPJ_FALSE;
+ }
+ v.wavelet = h.wavelet;
+
+ for (resno = 1; --numres; resno++) {
+ OPJ_FLOAT32 * OPJ_RESTRICT aj = (OPJ_FLOAT32*) tilec->data;
+ OPJ_UINT32 j;
+ /* Window of interest subband-based coordinates */
+ OPJ_UINT32 win_ll_x0, win_ll_y0, win_ll_x1, win_ll_y1;
+ OPJ_UINT32 win_hl_x0, win_hl_x1;
+ OPJ_UINT32 win_lh_y0, win_lh_y1;
+ /* Window of interest tile-resolution-based coordinates */
+ OPJ_UINT32 win_tr_x0, win_tr_x1, win_tr_y0, win_tr_y1;
+ /* Tile-resolution subband-based coordinates */
+ OPJ_UINT32 tr_ll_x0, tr_ll_y0, tr_hl_x0, tr_lh_y0;
+
+ ++tr;
+
+ h.sn = (OPJ_INT32)rw;
+ v.sn = (OPJ_INT32)rh;
+
+ rw = (OPJ_UINT32)(tr->x1 - tr->x0);
+ rh = (OPJ_UINT32)(tr->y1 - tr->y0);
+
+ h.dn = (OPJ_INT32)(rw - (OPJ_UINT32)h.sn);
+ h.cas = tr->x0 % 2;
+
+ v.dn = (OPJ_INT32)(rh - (OPJ_UINT32)v.sn);
+ v.cas = tr->y0 % 2;
+
+ /* Get the subband coordinates for the window of interest */
+ /* LL band */
+ opj_dwt_get_band_coordinates(tilec, resno, 0,
+ win_tcx0, win_tcy0, win_tcx1, win_tcy1,
+ &win_ll_x0, &win_ll_y0,
+ &win_ll_x1, &win_ll_y1);
+
+ /* HL band */
+ opj_dwt_get_band_coordinates(tilec, resno, 1,
+ win_tcx0, win_tcy0, win_tcx1, win_tcy1,
+ &win_hl_x0, NULL, &win_hl_x1, NULL);
+
+ /* LH band */
+ opj_dwt_get_band_coordinates(tilec, resno, 2,
+ win_tcx0, win_tcy0, win_tcx1, win_tcy1,
+ NULL, &win_lh_y0, NULL, &win_lh_y1);
+
+ /* Beware: band index for non-LL0 resolution are 0=HL, 1=LH and 2=HH */
+ tr_ll_x0 = (OPJ_UINT32)tr->bands[1].x0;
+ tr_ll_y0 = (OPJ_UINT32)tr->bands[0].y0;
+ tr_hl_x0 = (OPJ_UINT32)tr->bands[0].x0;
+ tr_lh_y0 = (OPJ_UINT32)tr->bands[1].y0;
+
+ /* Substract the origin of the bands for this tile, to the subwindow */
+ /* of interest band coordinates, so as to get them relative to the */
+ /* tile */
+ win_ll_x0 = opj_uint_subs(win_ll_x0, tr_ll_x0);
+ win_ll_y0 = opj_uint_subs(win_ll_y0, tr_ll_y0);
+ win_ll_x1 = opj_uint_subs(win_ll_x1, tr_ll_x0);
+ win_ll_y1 = opj_uint_subs(win_ll_y1, tr_ll_y0);
+ win_hl_x0 = opj_uint_subs(win_hl_x0, tr_hl_x0);
+ win_hl_x1 = opj_uint_subs(win_hl_x1, tr_hl_x0);
+ win_lh_y0 = opj_uint_subs(win_lh_y0, tr_lh_y0);
+ win_lh_y1 = opj_uint_subs(win_lh_y1, tr_lh_y0);
+
+ opj_dwt_segment_grow(filter_width, (OPJ_UINT32)h.sn, &win_ll_x0, &win_ll_x1);
+ opj_dwt_segment_grow(filter_width, (OPJ_UINT32)h.dn, &win_hl_x0, &win_hl_x1);
+
+ opj_dwt_segment_grow(filter_width, (OPJ_UINT32)v.sn, &win_ll_y0, &win_ll_y1);
+ opj_dwt_segment_grow(filter_width, (OPJ_UINT32)v.dn, &win_lh_y0, &win_lh_y1);
+
+ /* Compute the tile-resolution-based coordinates for the window of interest */
+ if (h.cas == 0) {
+ win_tr_x0 = opj_uint_min(2 * win_ll_x0, 2 * win_hl_x0 + 1);
+ win_tr_x1 = opj_uint_min(opj_uint_max(2 * win_ll_x1, 2 * win_hl_x1 + 1), rw);
+ } else {
+ win_tr_x0 = opj_uint_min(2 * win_hl_x0, 2 * win_ll_x0 + 1);
+ win_tr_x1 = opj_uint_min(opj_uint_max(2 * win_hl_x1, 2 * win_ll_x1 + 1), rw);
+ }
+
+ if (v.cas == 0) {
+ win_tr_y0 = opj_uint_min(2 * win_ll_y0, 2 * win_lh_y0 + 1);
+ win_tr_y1 = opj_uint_min(opj_uint_max(2 * win_ll_y1, 2 * win_lh_y1 + 1), rh);
+ } else {
+ win_tr_y0 = opj_uint_min(2 * win_lh_y0, 2 * win_ll_y0 + 1);
+ win_tr_y1 = opj_uint_min(opj_uint_max(2 * win_lh_y1, 2 * win_ll_y1 + 1), rh);
+ }
+
+ h.win_l_x0 = win_ll_x0;
+ h.win_l_x1 = win_ll_x1;
+ h.win_h_x0 = win_hl_x0;
+ h.win_h_x1 = win_hl_x1;
+ for (j = 0; j + 3 < rh; j += 4, aj += w * 4) {
+ if ((j + 3 >= win_ll_y0 && j < win_ll_y1) ||
+ (j + 3 >= win_lh_y0 + (OPJ_UINT32)v.sn &&
+ j < win_lh_y1 + (OPJ_UINT32)v.sn)) {
+ OPJ_UINT32 k;
+ opj_v4dwt_interleave_h(&h, aj, w, rh - j);
+ opj_v4dwt_decode(&h);
+
+ for (k = 0; k < rw; k++) {
+ 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];
+ }
+ }
+ }
+
+ if (j < rh &&
+ ((j + 3 >= win_ll_y0 && j < win_ll_y1) ||
+ (j + 3 >= win_lh_y0 + (OPJ_UINT32)v.sn &&
+ j < win_lh_y1 + (OPJ_UINT32)v.sn))) {
+ OPJ_UINT32 k;
+ opj_v4dwt_interleave_h(&h, aj, w, rh - j);
+ opj_v4dwt_decode(&h);
+ for (k = 0; k < rw; k++) {
+ switch (rh - j) {
+ case 3:
+ aj[k + w * 2] = h.wavelet[k].f[2];
+ /* FALLTHRU */
+ case 2:
+ aj[k + w ] = h.wavelet[k].f[1];
+ /* FALLTHRU */
+ case 1:
+ aj[k ] = h.wavelet[k].f[0];
+ }
+ }
+ }
+
+ v.win_l_x0 = win_ll_y0;
+ v.win_l_x1 = win_ll_y1;
+ v.win_h_x0 = win_lh_y0;
+ v.win_h_x1 = win_lh_y1;
+ aj = (OPJ_FLOAT32*) tilec->data;
+ aj += win_tr_x0;
+ for (j = win_tr_x0; j < win_tr_x1; j += 4, aj += 4) {
+ OPJ_UINT32 nb_elts = opj_uint_min(4U, win_tr_x1 - j);
+ OPJ_UINT32 k;
+
+ opj_v4dwt_interleave_v(&v, aj, w, nb_elts);
+ opj_v4dwt_decode(&v);
+
+ for (k = win_tr_y0; k < win_tr_y1; ++k) {
+ memcpy(&aj[k * w], &v.wavelet[k], nb_elts * sizeof(OPJ_FLOAT32));
+ }
+ }
+ }
+
+ opj_aligned_free(h.wavelet);
+ return OPJ_TRUE;
+}
+
+
+OPJ_BOOL opj_dwt_decode_real(opj_tcd_t *p_tcd,
+ opj_tcd_tilecomp_t* OPJ_RESTRICT tilec,
+ OPJ_UINT32 numres)
+{
+ if (opj_dwt_is_whole_tile_decoding(p_tcd, tilec)) {
+ return opj_dwt_decode_tile_97(tilec, numres);
+ } else {
+ return opj_dwt_decode_partial_97(p_tcd, tilec, numres);
+ }
+}
generated by cgit v1.2.3 (git 2.46.0) at 2026-04-21 22:47:23 +0000