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-rw-r--r--third_party/dav1d/src/cdef_apply_tmpl.c309
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diff --git a/third_party/dav1d/src/cdef_apply_tmpl.c b/third_party/dav1d/src/cdef_apply_tmpl.c
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+/*
+ * Copyright © 2018, VideoLAN and dav1d authors
+ * Copyright © 2018, Two Orioles, LLC
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+
+#include <string.h>
+
+#include "common/intops.h"
+
+#include "src/cdef_apply.h"
+
+enum Backup2x8Flags {
+ BACKUP_2X8_Y = 1 << 0,
+ BACKUP_2X8_UV = 1 << 1,
+};
+
+static void backup2lines(pixel *const dst[3], /*const*/ pixel *const src[3],
+ const ptrdiff_t stride[2],
+ const enum Dav1dPixelLayout layout)
+{
+ const ptrdiff_t y_stride = PXSTRIDE(stride[0]);
+ if (y_stride < 0)
+ pixel_copy(dst[0] + y_stride, src[0] + 7 * y_stride, -2 * y_stride);
+ else
+ pixel_copy(dst[0], src[0] + 6 * y_stride, 2 * y_stride);
+
+ if (layout != DAV1D_PIXEL_LAYOUT_I400) {
+ const ptrdiff_t uv_stride = PXSTRIDE(stride[1]);
+ if (uv_stride < 0) {
+ const int uv_off = layout == DAV1D_PIXEL_LAYOUT_I420 ? 3 : 7;
+ pixel_copy(dst[1] + uv_stride, src[1] + uv_off * uv_stride, -2 * uv_stride);
+ pixel_copy(dst[2] + uv_stride, src[2] + uv_off * uv_stride, -2 * uv_stride);
+ } else {
+ const int uv_off = layout == DAV1D_PIXEL_LAYOUT_I420 ? 2 : 6;
+ pixel_copy(dst[1], src[1] + uv_off * uv_stride, 2 * uv_stride);
+ pixel_copy(dst[2], src[2] + uv_off * uv_stride, 2 * uv_stride);
+ }
+ }
+}
+
+static void backup2x8(pixel dst[3][8][2],
+ /*const*/ pixel *const src[3],
+ const ptrdiff_t src_stride[2], int x_off,
+ const enum Dav1dPixelLayout layout,
+ const enum Backup2x8Flags flag)
+{
+ ptrdiff_t y_off = 0;
+ if (flag & BACKUP_2X8_Y) {
+ for (int y = 0; y < 8; y++, y_off += PXSTRIDE(src_stride[0]))
+ pixel_copy(dst[0][y], &src[0][y_off + x_off - 2], 2);
+ }
+
+ if (layout == DAV1D_PIXEL_LAYOUT_I400 || !(flag & BACKUP_2X8_UV))
+ return;
+
+ const int ss_ver = layout == DAV1D_PIXEL_LAYOUT_I420;
+ const int ss_hor = layout != DAV1D_PIXEL_LAYOUT_I444;
+
+ x_off >>= ss_hor;
+ y_off = 0;
+ for (int y = 0; y < (8 >> ss_ver); y++, y_off += PXSTRIDE(src_stride[1])) {
+ pixel_copy(dst[1][y], &src[1][y_off + x_off - 2], 2);
+ pixel_copy(dst[2][y], &src[2][y_off + x_off - 2], 2);
+ }
+}
+
+static int adjust_strength(const int strength, const unsigned var) {
+ if (!var) return 0;
+ const int i = var >> 6 ? imin(ulog2(var >> 6), 12) : 0;
+ return (strength * (4 + i) + 8) >> 4;
+}
+
+void bytefn(dav1d_cdef_brow)(Dav1dTaskContext *const tc,
+ pixel *const p[3],
+ const Av1Filter *const lflvl,
+ const int by_start, const int by_end,
+ const int sbrow_start, const int sby)
+{
+ Dav1dFrameContext *const f = (Dav1dFrameContext *)tc->f;
+ const int bitdepth_min_8 = BITDEPTH == 8 ? 0 : f->cur.p.bpc - 8;
+ const Dav1dDSPContext *const dsp = f->dsp;
+ enum CdefEdgeFlags edges = CDEF_HAVE_BOTTOM | (by_start > 0 ? CDEF_HAVE_TOP : 0);
+ pixel *ptrs[3] = { p[0], p[1], p[2] };
+ const int sbsz = 16;
+ const int sb64w = f->sb128w << 1;
+ const int damping = f->frame_hdr->cdef.damping + bitdepth_min_8;
+ const enum Dav1dPixelLayout layout = f->cur.p.layout;
+ const int uv_idx = DAV1D_PIXEL_LAYOUT_I444 - layout;
+ const int ss_ver = layout == DAV1D_PIXEL_LAYOUT_I420;
+ const int ss_hor = layout != DAV1D_PIXEL_LAYOUT_I444;
+ static const uint8_t uv_dirs[2][8] = { { 0, 1, 2, 3, 4, 5, 6, 7 },
+ { 7, 0, 2, 4, 5, 6, 6, 6 } };
+ const uint8_t *uv_dir = uv_dirs[layout == DAV1D_PIXEL_LAYOUT_I422];
+ const int have_tt = f->c->n_tc > 1;
+ const int sb128 = f->seq_hdr->sb128;
+ const int resize = f->frame_hdr->width[0] != f->frame_hdr->width[1];
+ const ptrdiff_t y_stride = PXSTRIDE(f->cur.stride[0]);
+ const ptrdiff_t uv_stride = PXSTRIDE(f->cur.stride[1]);
+
+ for (int bit = 0, by = by_start; by < by_end; by += 2, edges |= CDEF_HAVE_TOP) {
+ const int tf = tc->top_pre_cdef_toggle;
+ const int by_idx = (by & 30) >> 1;
+ if (by + 2 >= f->bh) edges &= ~CDEF_HAVE_BOTTOM;
+
+ if ((!have_tt || sbrow_start || by + 2 < by_end) &&
+ edges & CDEF_HAVE_BOTTOM)
+ {
+ // backup pre-filter data for next iteration
+ pixel *const cdef_top_bak[3] = {
+ f->lf.cdef_line[!tf][0] + have_tt * sby * 4 * y_stride,
+ f->lf.cdef_line[!tf][1] + have_tt * sby * 8 * uv_stride,
+ f->lf.cdef_line[!tf][2] + have_tt * sby * 8 * uv_stride
+ };
+ backup2lines(cdef_top_bak, ptrs, f->cur.stride, layout);
+ }
+
+ ALIGN_STK_16(pixel, lr_bak, 2 /* idx */, [3 /* plane */][8 /* y */][2 /* x */]);
+ pixel *iptrs[3] = { ptrs[0], ptrs[1], ptrs[2] };
+ edges &= ~CDEF_HAVE_LEFT;
+ edges |= CDEF_HAVE_RIGHT;
+ enum Backup2x8Flags prev_flag = 0;
+ for (int sbx = 0, last_skip = 1; sbx < sb64w; sbx++, edges |= CDEF_HAVE_LEFT) {
+ const int sb128x = sbx >> 1;
+ const int sb64_idx = ((by & sbsz) >> 3) + (sbx & 1);
+ const int cdef_idx = lflvl[sb128x].cdef_idx[sb64_idx];
+ if (cdef_idx == -1 ||
+ (!f->frame_hdr->cdef.y_strength[cdef_idx] &&
+ !f->frame_hdr->cdef.uv_strength[cdef_idx]))
+ {
+ last_skip = 1;
+ goto next_sb;
+ }
+
+ // Create a complete 32-bit mask for the sb row ahead of time.
+ const uint16_t (*noskip_row)[2] = &lflvl[sb128x].noskip_mask[by_idx];
+ const unsigned noskip_mask = (unsigned) noskip_row[0][1] << 16 |
+ noskip_row[0][0];
+
+ const int y_lvl = f->frame_hdr->cdef.y_strength[cdef_idx];
+ const int uv_lvl = f->frame_hdr->cdef.uv_strength[cdef_idx];
+ const enum Backup2x8Flags flag = !!y_lvl + (!!uv_lvl << 1);
+
+ const int y_pri_lvl = (y_lvl >> 2) << bitdepth_min_8;
+ int y_sec_lvl = y_lvl & 3;
+ y_sec_lvl += y_sec_lvl == 3;
+ y_sec_lvl <<= bitdepth_min_8;
+
+ const int uv_pri_lvl = (uv_lvl >> 2) << bitdepth_min_8;
+ int uv_sec_lvl = uv_lvl & 3;
+ uv_sec_lvl += uv_sec_lvl == 3;
+ uv_sec_lvl <<= bitdepth_min_8;
+
+ pixel *bptrs[3] = { iptrs[0], iptrs[1], iptrs[2] };
+ for (int bx = sbx * sbsz; bx < imin((sbx + 1) * sbsz, f->bw);
+ bx += 2, edges |= CDEF_HAVE_LEFT)
+ {
+ if (bx + 2 >= f->bw) edges &= ~CDEF_HAVE_RIGHT;
+
+ // check if this 8x8 block had any coded coefficients; if not,
+ // go to the next block
+ const uint32_t bx_mask = 3U << (bx & 30);
+ if (!(noskip_mask & bx_mask)) {
+ last_skip = 1;
+ goto next_b;
+ }
+ const int do_left = last_skip ? flag : (prev_flag ^ flag) & flag;
+ prev_flag = flag;
+ if (do_left && edges & CDEF_HAVE_LEFT) {
+ // we didn't backup the prefilter data because it wasn't
+ // there, so do it here instead
+ backup2x8(lr_bak[bit], bptrs, f->cur.stride, 0, layout, do_left);
+ }
+ if (edges & CDEF_HAVE_RIGHT) {
+ // backup pre-filter data for next iteration
+ backup2x8(lr_bak[!bit], bptrs, f->cur.stride, 8, layout, flag);
+ }
+
+ int dir;
+ unsigned variance;
+ if (y_pri_lvl || uv_pri_lvl)
+ dir = dsp->cdef.dir(bptrs[0], f->cur.stride[0],
+ &variance HIGHBD_CALL_SUFFIX);
+
+ const pixel *top, *bot;
+ ptrdiff_t offset;
+
+ if (!have_tt) goto st_y;
+ if (sbrow_start && by == by_start) {
+ if (resize) {
+ offset = (sby - 1) * 4 * y_stride + bx * 4;
+ top = &f->lf.cdef_lpf_line[0][offset];
+ } else {
+ offset = (sby * (4 << sb128) - 4) * y_stride + bx * 4;
+ top = &f->lf.lr_lpf_line[0][offset];
+ }
+ bot = bptrs[0] + 8 * y_stride;
+ } else if (!sbrow_start && by + 2 >= by_end) {
+ top = &f->lf.cdef_line[tf][0][sby * 4 * y_stride + bx * 4];
+ if (resize) {
+ offset = (sby * 4 + 2) * y_stride + bx * 4;
+ bot = &f->lf.cdef_lpf_line[0][offset];
+ } else {
+ const int line = sby * (4 << sb128) + 4 * sb128 + 2;
+ offset = line * y_stride + bx * 4;
+ bot = &f->lf.lr_lpf_line[0][offset];
+ }
+ } else {
+ st_y:;
+ offset = sby * 4 * y_stride;
+ top = &f->lf.cdef_line[tf][0][have_tt * offset + bx * 4];
+ bot = bptrs[0] + 8 * y_stride;
+ }
+ if (y_pri_lvl) {
+ const int adj_y_pri_lvl = adjust_strength(y_pri_lvl, variance);
+ if (adj_y_pri_lvl || y_sec_lvl)
+ dsp->cdef.fb[0](bptrs[0], f->cur.stride[0], lr_bak[bit][0],
+ top, bot, adj_y_pri_lvl, y_sec_lvl,
+ dir, damping, edges HIGHBD_CALL_SUFFIX);
+ } else if (y_sec_lvl)
+ dsp->cdef.fb[0](bptrs[0], f->cur.stride[0], lr_bak[bit][0],
+ top, bot, 0, y_sec_lvl, 0, damping,
+ edges HIGHBD_CALL_SUFFIX);
+
+ if (!uv_lvl) goto skip_uv;
+ assert(layout != DAV1D_PIXEL_LAYOUT_I400);
+
+ const int uvdir = uv_pri_lvl ? uv_dir[dir] : 0;
+ for (int pl = 1; pl <= 2; pl++) {
+ if (!have_tt) goto st_uv;
+ if (sbrow_start && by == by_start) {
+ if (resize) {
+ offset = (sby - 1) * 4 * uv_stride + (bx * 4 >> ss_hor);
+ top = &f->lf.cdef_lpf_line[pl][offset];
+ } else {
+ const int line = sby * (4 << sb128) - 4;
+ offset = line * uv_stride + (bx * 4 >> ss_hor);
+ top = &f->lf.lr_lpf_line[pl][offset];
+ }
+ bot = bptrs[pl] + (8 >> ss_ver) * uv_stride;
+ } else if (!sbrow_start && by + 2 >= by_end) {
+ const ptrdiff_t top_offset = sby * 8 * uv_stride +
+ (bx * 4 >> ss_hor);
+ top = &f->lf.cdef_line[tf][pl][top_offset];
+ if (resize) {
+ offset = (sby * 4 + 2) * uv_stride + (bx * 4 >> ss_hor);
+ bot = &f->lf.cdef_lpf_line[pl][offset];
+ } else {
+ const int line = sby * (4 << sb128) + 4 * sb128 + 2;
+ offset = line * uv_stride + (bx * 4 >> ss_hor);
+ bot = &f->lf.lr_lpf_line[pl][offset];
+ }
+ } else {
+ st_uv:;
+ const ptrdiff_t offset = sby * 8 * uv_stride;
+ top = &f->lf.cdef_line[tf][pl][have_tt * offset + (bx * 4 >> ss_hor)];
+ bot = bptrs[pl] + (8 >> ss_ver) * uv_stride;
+ }
+ dsp->cdef.fb[uv_idx](bptrs[pl], f->cur.stride[1],
+ lr_bak[bit][pl], top, bot,
+ uv_pri_lvl, uv_sec_lvl, uvdir,
+ damping - 1, edges HIGHBD_CALL_SUFFIX);
+ }
+
+ skip_uv:
+ bit ^= 1;
+ last_skip = 0;
+
+ next_b:
+ bptrs[0] += 8;
+ bptrs[1] += 8 >> ss_hor;
+ bptrs[2] += 8 >> ss_hor;
+ }
+
+ next_sb:
+ iptrs[0] += sbsz * 4;
+ iptrs[1] += sbsz * 4 >> ss_hor;
+ iptrs[2] += sbsz * 4 >> ss_hor;
+ }
+
+ ptrs[0] += 8 * PXSTRIDE(f->cur.stride[0]);
+ ptrs[1] += 8 * PXSTRIDE(f->cur.stride[1]) >> ss_ver;
+ ptrs[2] += 8 * PXSTRIDE(f->cur.stride[1]) >> ss_ver;
+ tc->top_pre_cdef_toggle ^= 1;
+ }
+}