470 lines
21 KiB
C
470 lines
21 KiB
C
/*
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* Copyright © 2018, VideoLAN and dav1d authors
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* Copyright © 2018, Two Orioles, LLC
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#include <string.h>
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#include "common/intops.h"
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#include "src/lf_apply.h"
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#include "src/lr_apply.h"
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// The loop filter buffer stores 12 rows of pixels. A superblock block will
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// contain at most 2 stripes. Each stripe requires 4 rows pixels (2 above
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// and 2 below) the final 4 rows are used to swap the bottom of the last
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// stripe with the top of the next super block row.
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static void backup_lpf(const Dav1dFrameContext *const f,
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pixel *dst, const ptrdiff_t dst_stride,
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const pixel *src, const ptrdiff_t src_stride,
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const int ss_ver, const int sb128,
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int row, const int row_h, const int src_w,
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const int h, const int ss_hor, const int lr_backup)
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{
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const int cdef_backup = !lr_backup;
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const int dst_w = f->frame_hdr->super_res.enabled ?
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(f->frame_hdr->width[1] + ss_hor) >> ss_hor : src_w;
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// The first stripe of the frame is shorter by 8 luma pixel rows.
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int stripe_h = ((64 << (cdef_backup & sb128)) - 8 * !row) >> ss_ver;
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src += (stripe_h - 2) * PXSTRIDE(src_stride);
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if (f->c->n_tc == 1) {
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if (row) {
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const int top = 4 << sb128;
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// Copy the top part of the stored loop filtered pixels from the
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// previous sb row needed above the first stripe of this sb row.
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pixel_copy(&dst[PXSTRIDE(dst_stride) * 0],
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&dst[PXSTRIDE(dst_stride) * top], dst_w);
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pixel_copy(&dst[PXSTRIDE(dst_stride) * 1],
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&dst[PXSTRIDE(dst_stride) * (top + 1)], dst_w);
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pixel_copy(&dst[PXSTRIDE(dst_stride) * 2],
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&dst[PXSTRIDE(dst_stride) * (top + 2)], dst_w);
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pixel_copy(&dst[PXSTRIDE(dst_stride) * 3],
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&dst[PXSTRIDE(dst_stride) * (top + 3)], dst_w);
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}
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dst += 4 * PXSTRIDE(dst_stride);
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}
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if (lr_backup && (f->frame_hdr->width[0] != f->frame_hdr->width[1])) {
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while (row + stripe_h <= row_h) {
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const int n_lines = 4 - (row + stripe_h + 1 == h);
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f->dsp->mc.resize(dst, dst_stride, src, src_stride,
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dst_w, n_lines, src_w, f->resize_step[ss_hor],
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f->resize_start[ss_hor] HIGHBD_CALL_SUFFIX);
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row += stripe_h; // unmodified stripe_h for the 1st stripe
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stripe_h = 64 >> ss_ver;
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src += stripe_h * PXSTRIDE(src_stride);
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dst += n_lines * PXSTRIDE(dst_stride);
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if (n_lines == 3) {
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pixel_copy(dst, &dst[-PXSTRIDE(dst_stride)], dst_w);
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dst += PXSTRIDE(dst_stride);
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}
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}
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} else {
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while (row + stripe_h <= row_h) {
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const int n_lines = 4 - (row + stripe_h + 1 == h);
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for (int i = 0; i < 4; i++) {
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pixel_copy(dst, i == n_lines ? &dst[-PXSTRIDE(dst_stride)] :
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src, src_w);
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dst += PXSTRIDE(dst_stride);
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src += PXSTRIDE(src_stride);
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}
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row += stripe_h; // unmodified stripe_h for the 1st stripe
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stripe_h = 64 >> ss_ver;
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src += (stripe_h - 4) * PXSTRIDE(src_stride);
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}
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}
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}
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void bytefn(dav1d_copy_lpf)(Dav1dFrameContext *const f,
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/*const*/ pixel *const src[3], const int sby)
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{
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const int have_tt = f->c->n_tc > 1;
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const int resize = f->frame_hdr->width[0] != f->frame_hdr->width[1];
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const int offset = 8 * !!sby;
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const ptrdiff_t *const src_stride = f->cur.stride;
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const ptrdiff_t *const lr_stride = f->sr_cur.p.stride;
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const int tt_off = have_tt * sby * (4 << f->seq_hdr->sb128);
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pixel *const dst[3] = {
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f->lf.lr_lpf_line[0] + tt_off * PXSTRIDE(lr_stride[0]),
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f->lf.lr_lpf_line[1] + tt_off * PXSTRIDE(lr_stride[1]),
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f->lf.lr_lpf_line[2] + tt_off * PXSTRIDE(lr_stride[1])
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};
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// TODO Also check block level restore type to reduce copying.
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const int restore_planes = f->lf.restore_planes;
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if (f->seq_hdr->cdef || restore_planes & LR_RESTORE_Y) {
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const int h = f->cur.p.h;
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const int w = f->bw << 2;
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const int row_h = imin((sby + 1) << (6 + f->seq_hdr->sb128), h - 1);
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const int y_stripe = (sby << (6 + f->seq_hdr->sb128)) - offset;
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if (restore_planes & LR_RESTORE_Y || !resize)
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backup_lpf(f, dst[0], lr_stride[0],
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src[0] - offset * PXSTRIDE(src_stride[0]), src_stride[0],
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0, f->seq_hdr->sb128, y_stripe, row_h, w, h, 0, 1);
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if (have_tt && resize) {
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const ptrdiff_t cdef_off_y = sby * 4 * PXSTRIDE(src_stride[0]);
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backup_lpf(f, f->lf.cdef_lpf_line[0] + cdef_off_y, src_stride[0],
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src[0] - offset * PXSTRIDE(src_stride[0]), src_stride[0],
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0, f->seq_hdr->sb128, y_stripe, row_h, w, h, 0, 0);
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}
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}
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if ((f->seq_hdr->cdef || restore_planes & (LR_RESTORE_U | LR_RESTORE_V)) &&
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f->cur.p.layout != DAV1D_PIXEL_LAYOUT_I400)
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{
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const int ss_ver = f->sr_cur.p.p.layout == DAV1D_PIXEL_LAYOUT_I420;
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const int ss_hor = f->sr_cur.p.p.layout != DAV1D_PIXEL_LAYOUT_I444;
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const int h = (f->cur.p.h + ss_ver) >> ss_ver;
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const int w = f->bw << (2 - ss_hor);
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const int row_h = imin((sby + 1) << ((6 - ss_ver) + f->seq_hdr->sb128), h - 1);
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const int offset_uv = offset >> ss_ver;
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const int y_stripe = (sby << ((6 - ss_ver) + f->seq_hdr->sb128)) - offset_uv;
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const ptrdiff_t cdef_off_uv = sby * 4 * PXSTRIDE(src_stride[1]);
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if (f->seq_hdr->cdef || restore_planes & LR_RESTORE_U) {
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if (restore_planes & LR_RESTORE_U || !resize)
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backup_lpf(f, dst[1], lr_stride[1],
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src[1] - offset_uv * PXSTRIDE(src_stride[1]),
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src_stride[1], ss_ver, f->seq_hdr->sb128, y_stripe,
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row_h, w, h, ss_hor, 1);
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if (have_tt && resize)
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backup_lpf(f, f->lf.cdef_lpf_line[1] + cdef_off_uv, src_stride[1],
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src[1] - offset_uv * PXSTRIDE(src_stride[1]),
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src_stride[1], ss_ver, f->seq_hdr->sb128, y_stripe,
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row_h, w, h, ss_hor, 0);
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}
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if (f->seq_hdr->cdef || restore_planes & LR_RESTORE_V) {
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if (restore_planes & LR_RESTORE_V || !resize)
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backup_lpf(f, dst[2], lr_stride[1],
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src[2] - offset_uv * PXSTRIDE(src_stride[1]),
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src_stride[1], ss_ver, f->seq_hdr->sb128, y_stripe,
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row_h, w, h, ss_hor, 1);
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if (have_tt && resize)
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backup_lpf(f, f->lf.cdef_lpf_line[2] + cdef_off_uv, src_stride[1],
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src[2] - offset_uv * PXSTRIDE(src_stride[1]),
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src_stride[1], ss_ver, f->seq_hdr->sb128, y_stripe,
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row_h, w, h, ss_hor, 0);
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}
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}
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}
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static inline void filter_plane_cols_y(const Dav1dFrameContext *const f,
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const int have_left,
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const uint8_t (*lvl)[4],
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const ptrdiff_t b4_stride,
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const uint16_t (*const mask)[3][2],
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pixel *dst, const ptrdiff_t ls,
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const int w,
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const int starty4, const int endy4)
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{
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const Dav1dDSPContext *const dsp = f->dsp;
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const loopfilter_sb_fn loop_filter_sb = dsp->lf.loop_filter_sb[0][0];
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// filter edges between columns (e.g. block1 | block2)
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for (int x = 0; x < w; x++) {
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if (!have_left && !x) continue;
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uint32_t hmask[4];
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if (!starty4) {
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hmask[0] = mask[x][0][0];
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hmask[1] = mask[x][1][0];
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hmask[2] = mask[x][2][0];
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if (endy4 > 16) {
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hmask[0] |= (unsigned) mask[x][0][1] << 16;
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hmask[1] |= (unsigned) mask[x][1][1] << 16;
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hmask[2] |= (unsigned) mask[x][2][1] << 16;
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}
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} else {
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hmask[0] = mask[x][0][1];
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hmask[1] = mask[x][1][1];
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hmask[2] = mask[x][2][1];
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}
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hmask[3] = 0;
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loop_filter_sb(&dst[x * 4], ls, hmask,
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(const uint8_t(*)[4]) &lvl[x][0], b4_stride,
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&f->lf.lim_lut, endy4 - starty4 HIGHBD_CALL_SUFFIX);
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}
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}
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static inline void filter_plane_rows_y(const Dav1dFrameContext *const f,
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const int have_top,
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const uint8_t (*lvl)[4],
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const ptrdiff_t b4_stride,
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const uint16_t (*const mask)[3][2],
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pixel *dst, const ptrdiff_t ls,
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const int w,
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const int starty4, const int endy4)
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{
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const Dav1dDSPContext *const dsp = f->dsp;
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const loopfilter_sb_fn loop_filter_sb = dsp->lf.loop_filter_sb[0][1];
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// block1
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// filter edges between rows (e.g. ------)
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// block2
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for (int y = starty4; y < endy4;
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y++, dst += 4 * PXSTRIDE(ls), lvl += b4_stride)
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{
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if (!have_top && !y) continue;
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const uint32_t vmask[4] = {
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mask[y][0][0] | ((unsigned) mask[y][0][1] << 16),
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mask[y][1][0] | ((unsigned) mask[y][1][1] << 16),
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mask[y][2][0] | ((unsigned) mask[y][2][1] << 16),
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0,
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};
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loop_filter_sb(dst, ls, vmask,
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(const uint8_t(*)[4]) &lvl[0][1], b4_stride,
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&f->lf.lim_lut, w HIGHBD_CALL_SUFFIX);
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}
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}
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static inline void filter_plane_cols_uv(const Dav1dFrameContext *const f,
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const int have_left,
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const uint8_t (*lvl)[4],
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const ptrdiff_t b4_stride,
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const uint16_t (*const mask)[2][2],
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pixel *const u, pixel *const v,
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const ptrdiff_t ls, const int w,
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const int starty4, const int endy4,
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const int ss_ver)
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{
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const Dav1dDSPContext *const dsp = f->dsp;
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const loopfilter_sb_fn loop_filter_sb = dsp->lf.loop_filter_sb[1][0];
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// filter edges between columns (e.g. block1 | block2)
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for (int x = 0; x < w; x++) {
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if (!have_left && !x) continue;
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uint32_t hmask[3];
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if (!starty4) {
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hmask[0] = mask[x][0][0];
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hmask[1] = mask[x][1][0];
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if (endy4 > (16 >> ss_ver)) {
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hmask[0] |= (unsigned) mask[x][0][1] << (16 >> ss_ver);
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hmask[1] |= (unsigned) mask[x][1][1] << (16 >> ss_ver);
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}
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} else {
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hmask[0] = mask[x][0][1];
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hmask[1] = mask[x][1][1];
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}
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hmask[2] = 0;
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loop_filter_sb(&u[x * 4], ls, hmask,
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(const uint8_t(*)[4]) &lvl[x][2], b4_stride,
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&f->lf.lim_lut, endy4 - starty4 HIGHBD_CALL_SUFFIX);
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loop_filter_sb(&v[x * 4], ls, hmask,
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(const uint8_t(*)[4]) &lvl[x][3], b4_stride,
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&f->lf.lim_lut, endy4 - starty4 HIGHBD_CALL_SUFFIX);
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}
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}
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static inline void filter_plane_rows_uv(const Dav1dFrameContext *const f,
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const int have_top,
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const uint8_t (*lvl)[4],
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const ptrdiff_t b4_stride,
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const uint16_t (*const mask)[2][2],
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pixel *const u, pixel *const v,
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const ptrdiff_t ls, const int w,
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const int starty4, const int endy4,
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const int ss_hor)
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{
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const Dav1dDSPContext *const dsp = f->dsp;
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const loopfilter_sb_fn loop_filter_sb = dsp->lf.loop_filter_sb[1][1];
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ptrdiff_t off_l = 0;
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// block1
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// filter edges between rows (e.g. ------)
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// block2
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for (int y = starty4; y < endy4;
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y++, off_l += 4 * PXSTRIDE(ls), lvl += b4_stride)
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{
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if (!have_top && !y) continue;
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const uint32_t vmask[3] = {
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mask[y][0][0] | ((unsigned) mask[y][0][1] << (16 >> ss_hor)),
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mask[y][1][0] | ((unsigned) mask[y][1][1] << (16 >> ss_hor)),
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0,
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};
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loop_filter_sb(&u[off_l], ls, vmask,
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(const uint8_t(*)[4]) &lvl[0][2], b4_stride,
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&f->lf.lim_lut, w HIGHBD_CALL_SUFFIX);
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loop_filter_sb(&v[off_l], ls, vmask,
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(const uint8_t(*)[4]) &lvl[0][3], b4_stride,
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&f->lf.lim_lut, w HIGHBD_CALL_SUFFIX);
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}
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}
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void bytefn(dav1d_loopfilter_sbrow_cols)(const Dav1dFrameContext *const f,
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pixel *const p[3], Av1Filter *const lflvl,
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int sby, const int start_of_tile_row)
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{
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int x, have_left;
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// Don't filter outside the frame
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const int is_sb64 = !f->seq_hdr->sb128;
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const int starty4 = (sby & is_sb64) << 4;
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const int sbsz = 32 >> is_sb64;
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const int sbl2 = 5 - is_sb64;
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const int halign = (f->bh + 31) & ~31;
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const int ss_ver = f->cur.p.layout == DAV1D_PIXEL_LAYOUT_I420;
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const int ss_hor = f->cur.p.layout != DAV1D_PIXEL_LAYOUT_I444;
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const int vmask = 16 >> ss_ver, hmask = 16 >> ss_hor;
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const unsigned vmax = 1U << vmask, hmax = 1U << hmask;
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const unsigned endy4 = starty4 + imin(f->h4 - sby * sbsz, sbsz);
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const unsigned uv_endy4 = (endy4 + ss_ver) >> ss_ver;
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// fix lpf strength at tile col boundaries
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const uint8_t *lpf_y = &f->lf.tx_lpf_right_edge[0][sby << sbl2];
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const uint8_t *lpf_uv = &f->lf.tx_lpf_right_edge[1][sby << (sbl2 - ss_ver)];
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for (int tile_col = 1;; tile_col++) {
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x = f->frame_hdr->tiling.col_start_sb[tile_col];
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if ((x << sbl2) >= f->bw) break;
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const int bx4 = x & is_sb64 ? 16 : 0, cbx4 = bx4 >> ss_hor;
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x >>= is_sb64;
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uint16_t (*const y_hmask)[2] = lflvl[x].filter_y[0][bx4];
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for (unsigned y = starty4, mask = 1 << y; y < endy4; y++, mask <<= 1) {
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const int sidx = mask >= 0x10000U;
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const unsigned smask = mask >> (sidx << 4);
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const int idx = 2 * !!(y_hmask[2][sidx] & smask) +
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!!(y_hmask[1][sidx] & smask);
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y_hmask[2][sidx] &= ~smask;
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y_hmask[1][sidx] &= ~smask;
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y_hmask[0][sidx] &= ~smask;
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y_hmask[imin(idx, lpf_y[y - starty4])][sidx] |= smask;
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}
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if (f->cur.p.layout != DAV1D_PIXEL_LAYOUT_I400) {
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uint16_t (*const uv_hmask)[2] = lflvl[x].filter_uv[0][cbx4];
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for (unsigned y = starty4 >> ss_ver, uv_mask = 1 << y; y < uv_endy4;
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y++, uv_mask <<= 1)
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{
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const int sidx = uv_mask >= vmax;
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const unsigned smask = uv_mask >> (sidx << (4 - ss_ver));
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const int idx = !!(uv_hmask[1][sidx] & smask);
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uv_hmask[1][sidx] &= ~smask;
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uv_hmask[0][sidx] &= ~smask;
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uv_hmask[imin(idx, lpf_uv[y - (starty4 >> ss_ver)])][sidx] |= smask;
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}
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}
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lpf_y += halign;
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lpf_uv += halign >> ss_ver;
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}
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// fix lpf strength at tile row boundaries
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if (start_of_tile_row) {
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const BlockContext *a;
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for (x = 0, a = &f->a[f->sb128w * (start_of_tile_row - 1)];
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x < f->sb128w; x++, a++)
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{
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uint16_t (*const y_vmask)[2] = lflvl[x].filter_y[1][starty4];
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const unsigned w = imin(32, f->w4 - (x << 5));
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for (unsigned mask = 1, i = 0; i < w; mask <<= 1, i++) {
|
|
const int sidx = mask >= 0x10000U;
|
|
const unsigned smask = mask >> (sidx << 4);
|
|
const int idx = 2 * !!(y_vmask[2][sidx] & smask) +
|
|
!!(y_vmask[1][sidx] & smask);
|
|
y_vmask[2][sidx] &= ~smask;
|
|
y_vmask[1][sidx] &= ~smask;
|
|
y_vmask[0][sidx] &= ~smask;
|
|
y_vmask[imin(idx, a->tx_lpf_y[i])][sidx] |= smask;
|
|
}
|
|
|
|
if (f->cur.p.layout != DAV1D_PIXEL_LAYOUT_I400) {
|
|
const unsigned cw = (w + ss_hor) >> ss_hor;
|
|
uint16_t (*const uv_vmask)[2] = lflvl[x].filter_uv[1][starty4 >> ss_ver];
|
|
for (unsigned uv_mask = 1, i = 0; i < cw; uv_mask <<= 1, i++) {
|
|
const int sidx = uv_mask >= hmax;
|
|
const unsigned smask = uv_mask >> (sidx << (4 - ss_hor));
|
|
const int idx = !!(uv_vmask[1][sidx] & smask);
|
|
uv_vmask[1][sidx] &= ~smask;
|
|
uv_vmask[0][sidx] &= ~smask;
|
|
uv_vmask[imin(idx, a->tx_lpf_uv[i])][sidx] |= smask;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
pixel *ptr;
|
|
uint8_t (*level_ptr)[4] = f->lf.level + f->b4_stride * sby * sbsz;
|
|
for (ptr = p[0], have_left = 0, x = 0; x < f->sb128w;
|
|
x++, have_left = 1, ptr += 128, level_ptr += 32)
|
|
{
|
|
filter_plane_cols_y(f, have_left, level_ptr, f->b4_stride,
|
|
lflvl[x].filter_y[0], ptr, f->cur.stride[0],
|
|
imin(32, f->w4 - x * 32), starty4, endy4);
|
|
}
|
|
|
|
if (!f->frame_hdr->loopfilter.level_u && !f->frame_hdr->loopfilter.level_v)
|
|
return;
|
|
|
|
ptrdiff_t uv_off;
|
|
level_ptr = f->lf.level + f->b4_stride * (sby * sbsz >> ss_ver);
|
|
for (uv_off = 0, have_left = 0, x = 0; x < f->sb128w;
|
|
x++, have_left = 1, uv_off += 128 >> ss_hor, level_ptr += 32 >> ss_hor)
|
|
{
|
|
filter_plane_cols_uv(f, have_left, level_ptr, f->b4_stride,
|
|
lflvl[x].filter_uv[0],
|
|
&p[1][uv_off], &p[2][uv_off], f->cur.stride[1],
|
|
(imin(32, f->w4 - x * 32) + ss_hor) >> ss_hor,
|
|
starty4 >> ss_ver, uv_endy4, ss_ver);
|
|
}
|
|
}
|
|
|
|
void bytefn(dav1d_loopfilter_sbrow_rows)(const Dav1dFrameContext *const f,
|
|
pixel *const p[3], Av1Filter *const lflvl,
|
|
int sby)
|
|
{
|
|
int x;
|
|
// Don't filter outside the frame
|
|
const int have_top = sby > 0;
|
|
const int is_sb64 = !f->seq_hdr->sb128;
|
|
const int starty4 = (sby & is_sb64) << 4;
|
|
const int sbsz = 32 >> is_sb64;
|
|
const int ss_ver = f->cur.p.layout == DAV1D_PIXEL_LAYOUT_I420;
|
|
const int ss_hor = f->cur.p.layout != DAV1D_PIXEL_LAYOUT_I444;
|
|
const unsigned endy4 = starty4 + imin(f->h4 - sby * sbsz, sbsz);
|
|
const unsigned uv_endy4 = (endy4 + ss_ver) >> ss_ver;
|
|
|
|
pixel *ptr;
|
|
uint8_t (*level_ptr)[4] = f->lf.level + f->b4_stride * sby * sbsz;
|
|
for (ptr = p[0], x = 0; x < f->sb128w; x++, ptr += 128, level_ptr += 32) {
|
|
filter_plane_rows_y(f, have_top, level_ptr, f->b4_stride,
|
|
lflvl[x].filter_y[1], ptr, f->cur.stride[0],
|
|
imin(32, f->w4 - x * 32), starty4, endy4);
|
|
}
|
|
|
|
if (!f->frame_hdr->loopfilter.level_u && !f->frame_hdr->loopfilter.level_v)
|
|
return;
|
|
|
|
ptrdiff_t uv_off;
|
|
level_ptr = f->lf.level + f->b4_stride * (sby * sbsz >> ss_ver);
|
|
for (uv_off = 0, x = 0; x < f->sb128w;
|
|
x++, uv_off += 128 >> ss_hor, level_ptr += 32 >> ss_hor)
|
|
{
|
|
filter_plane_rows_uv(f, have_top, level_ptr, f->b4_stride,
|
|
lflvl[x].filter_uv[1],
|
|
&p[1][uv_off], &p[2][uv_off], f->cur.stride[1],
|
|
(imin(32, f->w4 - x * 32) + ss_hor) >> ss_hor,
|
|
starty4 >> ss_ver, uv_endy4, ss_hor);
|
|
}
|
|
}
|