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-rw-r--r--third_party/dav1d/src/lf_mask.c491
1 files changed, 491 insertions, 0 deletions
diff --git a/third_party/dav1d/src/lf_mask.c b/third_party/dav1d/src/lf_mask.c
new file mode 100644
index 0000000000..91fe4a02c8
--- /dev/null
+++ b/third_party/dav1d/src/lf_mask.c
@@ -0,0 +1,491 @@
+/*
+ * 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/ctx.h"
+#include "src/levels.h"
+#include "src/lf_mask.h"
+#include "src/tables.h"
+
+static void decomp_tx(uint8_t (*const txa)[2 /* txsz, step */][32 /* y */][32 /* x */],
+ const enum RectTxfmSize from,
+ const int depth,
+ const int y_off, const int x_off,
+ const uint16_t *const tx_masks)
+{
+ const TxfmInfo *const t_dim = &dav1d_txfm_dimensions[from];
+ const int is_split = (from == (int) TX_4X4 || depth > 1) ? 0 :
+ (tx_masks[depth] >> (y_off * 4 + x_off)) & 1;
+
+ if (is_split) {
+ const enum RectTxfmSize sub = t_dim->sub;
+ const int htw4 = t_dim->w >> 1, hth4 = t_dim->h >> 1;
+
+ decomp_tx(txa, sub, depth + 1, y_off * 2 + 0, x_off * 2 + 0, tx_masks);
+ if (t_dim->w >= t_dim->h)
+ decomp_tx((uint8_t(*)[2][32][32]) &txa[0][0][0][htw4],
+ sub, depth + 1, y_off * 2 + 0, x_off * 2 + 1, tx_masks);
+ if (t_dim->h >= t_dim->w) {
+ decomp_tx((uint8_t(*)[2][32][32]) &txa[0][0][hth4][0],
+ sub, depth + 1, y_off * 2 + 1, x_off * 2 + 0, tx_masks);
+ if (t_dim->w >= t_dim->h)
+ decomp_tx((uint8_t(*)[2][32][32]) &txa[0][0][hth4][htw4],
+ sub, depth + 1, y_off * 2 + 1, x_off * 2 + 1, tx_masks);
+ }
+ } else {
+ const int lw = imin(2, t_dim->lw), lh = imin(2, t_dim->lh);
+
+#define set_ctx(type, dir, diridx, off, mul, rep_macro) \
+ for (int y = 0; y < t_dim->h; y++) { \
+ rep_macro(type, txa[0][0][y], off, mul * lw); \
+ rep_macro(type, txa[1][0][y], off, mul * lh); \
+ txa[0][1][y][0] = t_dim->w; \
+ }
+ case_set_upto16(t_dim->w,,, 0);
+#undef set_ctx
+#define set_ctx(type, dir, diridx, off, mul, rep_macro) \
+ rep_macro(type, txa[1][1][0], off, mul * t_dim->h)
+ case_set_upto16(t_dim->w,,, 0);
+#undef set_ctx
+ }
+}
+
+static inline void mask_edges_inter(uint16_t (*const masks)[32][3][2],
+ const int by4, const int bx4,
+ const int w4, const int h4, const int skip,
+ const enum RectTxfmSize max_tx,
+ const uint16_t *const tx_masks,
+ uint8_t *const a, uint8_t *const l)
+{
+ const TxfmInfo *const t_dim = &dav1d_txfm_dimensions[max_tx];
+ int y, x;
+
+ ALIGN_STK_16(uint8_t, txa, 2 /* edge */, [2 /* txsz, step */][32 /* y */][32 /* x */]);
+ for (int y_off = 0, y = 0; y < h4; y += t_dim->h, y_off++)
+ for (int x_off = 0, x = 0; x < w4; x += t_dim->w, x_off++)
+ decomp_tx((uint8_t(*)[2][32][32]) &txa[0][0][y][x],
+ max_tx, 0, y_off, x_off, tx_masks);
+
+ // left block edge
+ unsigned mask = 1U << by4;
+ for (y = 0; y < h4; y++, mask <<= 1) {
+ const int sidx = mask >= 0x10000;
+ const unsigned smask = mask >> (sidx << 4);
+ masks[0][bx4][imin(txa[0][0][y][0], l[y])][sidx] |= smask;
+ }
+
+ // top block edge
+ for (x = 0, mask = 1U << bx4; x < w4; x++, mask <<= 1) {
+ const int sidx = mask >= 0x10000;
+ const unsigned smask = mask >> (sidx << 4);
+ masks[1][by4][imin(txa[1][0][0][x], a[x])][sidx] |= smask;
+ }
+
+ if (!skip) {
+ // inner (tx) left|right edges
+ for (y = 0, mask = 1U << by4; y < h4; y++, mask <<= 1) {
+ const int sidx = mask >= 0x10000U;
+ const unsigned smask = mask >> (sidx << 4);
+ int ltx = txa[0][0][y][0];
+ int step = txa[0][1][y][0];
+ for (x = step; x < w4; x += step) {
+ const int rtx = txa[0][0][y][x];
+ masks[0][bx4 + x][imin(rtx, ltx)][sidx] |= smask;
+ ltx = rtx;
+ step = txa[0][1][y][x];
+ }
+ }
+
+ // top
+ // inner (tx) --- edges
+ // bottom
+ for (x = 0, mask = 1U << bx4; x < w4; x++, mask <<= 1) {
+ const int sidx = mask >= 0x10000U;
+ const unsigned smask = mask >> (sidx << 4);
+ int ttx = txa[1][0][0][x];
+ int step = txa[1][1][0][x];
+ for (y = step; y < h4; y += step) {
+ const int btx = txa[1][0][y][x];
+ masks[1][by4 + y][imin(ttx, btx)][sidx] |= smask;
+ ttx = btx;
+ step = txa[1][1][y][x];
+ }
+ }
+ }
+
+ for (y = 0; y < h4; y++)
+ l[y] = txa[0][0][y][w4 - 1];
+ memcpy(a, txa[1][0][h4 - 1], w4);
+}
+
+static inline void mask_edges_intra(uint16_t (*const masks)[32][3][2],
+ const int by4, const int bx4,
+ const int w4, const int h4,
+ const enum RectTxfmSize tx,
+ uint8_t *const a, uint8_t *const l)
+{
+ const TxfmInfo *const t_dim = &dav1d_txfm_dimensions[tx];
+ const int twl4 = t_dim->lw, thl4 = t_dim->lh;
+ const int twl4c = imin(2, twl4), thl4c = imin(2, thl4);
+ int y, x;
+
+ // left block edge
+ unsigned mask = 1U << by4;
+ for (y = 0; y < h4; y++, mask <<= 1) {
+ const int sidx = mask >= 0x10000;
+ const unsigned smask = mask >> (sidx << 4);
+ masks[0][bx4][imin(twl4c, l[y])][sidx] |= smask;
+ }
+
+ // top block edge
+ for (x = 0, mask = 1U << bx4; x < w4; x++, mask <<= 1) {
+ const int sidx = mask >= 0x10000;
+ const unsigned smask = mask >> (sidx << 4);
+ masks[1][by4][imin(thl4c, a[x])][sidx] |= smask;
+ }
+
+ // inner (tx) left|right edges
+ const int hstep = t_dim->w;
+ unsigned t = 1U << by4;
+ unsigned inner = (unsigned) ((((uint64_t) t) << h4) - t);
+ unsigned inner1 = inner & 0xffff, inner2 = inner >> 16;
+ for (x = hstep; x < w4; x += hstep) {
+ if (inner1) masks[0][bx4 + x][twl4c][0] |= inner1;
+ if (inner2) masks[0][bx4 + x][twl4c][1] |= inner2;
+ }
+
+ // top
+ // inner (tx) --- edges
+ // bottom
+ const int vstep = t_dim->h;
+ t = 1U << bx4;
+ inner = (unsigned) ((((uint64_t) t) << w4) - t);
+ inner1 = inner & 0xffff;
+ inner2 = inner >> 16;
+ for (y = vstep; y < h4; y += vstep) {
+ if (inner1) masks[1][by4 + y][thl4c][0] |= inner1;
+ if (inner2) masks[1][by4 + y][thl4c][1] |= inner2;
+ }
+
+#define set_ctx(type, dir, diridx, off, mul, rep_macro) \
+ rep_macro(type, a, off, mul * thl4c)
+#define default_memset(dir, diridx, off, var) \
+ memset(a, thl4c, var)
+ case_set_upto32_with_default(w4,,, 0);
+#undef default_memset
+#undef set_ctx
+#define set_ctx(type, dir, diridx, off, mul, rep_macro) \
+ rep_macro(type, l, off, mul * twl4c)
+#define default_memset(dir, diridx, off, var) \
+ memset(l, twl4c, var)
+ case_set_upto32_with_default(h4,,, 0);
+#undef default_memset
+#undef set_ctx
+}
+
+static void mask_edges_chroma(uint16_t (*const masks)[32][2][2],
+ const int cby4, const int cbx4,
+ const int cw4, const int ch4,
+ const int skip_inter,
+ const enum RectTxfmSize tx,
+ uint8_t *const a, uint8_t *const l,
+ const int ss_hor, const int ss_ver)
+{
+ const TxfmInfo *const t_dim = &dav1d_txfm_dimensions[tx];
+ const int twl4 = t_dim->lw, thl4 = t_dim->lh;
+ const int twl4c = !!twl4, thl4c = !!thl4;
+ int y, x;
+ const int vbits = 4 - ss_ver, hbits = 4 - ss_hor;
+ const int vmask = 16 >> ss_ver, hmask = 16 >> ss_hor;
+ const unsigned vmax = 1 << vmask, hmax = 1 << hmask;
+
+ // left block edge
+ unsigned mask = 1U << cby4;
+ for (y = 0; y < ch4; y++, mask <<= 1) {
+ const int sidx = mask >= vmax;
+ const unsigned smask = mask >> (sidx << vbits);
+ masks[0][cbx4][imin(twl4c, l[y])][sidx] |= smask;
+ }
+
+ // top block edge
+ for (x = 0, mask = 1U << cbx4; x < cw4; x++, mask <<= 1) {
+ const int sidx = mask >= hmax;
+ const unsigned smask = mask >> (sidx << hbits);
+ masks[1][cby4][imin(thl4c, a[x])][sidx] |= smask;
+ }
+
+ if (!skip_inter) {
+ // inner (tx) left|right edges
+ const int hstep = t_dim->w;
+ unsigned t = 1U << cby4;
+ unsigned inner = (unsigned) ((((uint64_t) t) << ch4) - t);
+ unsigned inner1 = inner & ((1 << vmask) - 1), inner2 = inner >> vmask;
+ for (x = hstep; x < cw4; x += hstep) {
+ if (inner1) masks[0][cbx4 + x][twl4c][0] |= inner1;
+ if (inner2) masks[0][cbx4 + x][twl4c][1] |= inner2;
+ }
+
+ // top
+ // inner (tx) --- edges
+ // bottom
+ const int vstep = t_dim->h;
+ t = 1U << cbx4;
+ inner = (unsigned) ((((uint64_t) t) << cw4) - t);
+ inner1 = inner & ((1 << hmask) - 1), inner2 = inner >> hmask;
+ for (y = vstep; y < ch4; y += vstep) {
+ if (inner1) masks[1][cby4 + y][thl4c][0] |= inner1;
+ if (inner2) masks[1][cby4 + y][thl4c][1] |= inner2;
+ }
+ }
+
+#define set_ctx(type, dir, diridx, off, mul, rep_macro) \
+ rep_macro(type, a, off, mul * thl4c)
+#define default_memset(dir, diridx, off, var) \
+ memset(a, thl4c, var)
+ case_set_upto32_with_default(cw4,,, 0);
+#undef default_memset
+#undef set_ctx
+#define set_ctx(type, dir, diridx, off, mul, rep_macro) \
+ rep_macro(type, l, off, mul * twl4c)
+#define default_memset(dir, diridx, off, var) \
+ memset(l, twl4c, var)
+ case_set_upto32_with_default(ch4,,, 0);
+#undef default_memset
+#undef set_ctx
+}
+
+void dav1d_create_lf_mask_intra(Av1Filter *const lflvl,
+ uint8_t (*const level_cache)[4],
+ const ptrdiff_t b4_stride,
+ const uint8_t (*filter_level)[8][2],
+ const int bx, const int by,
+ const int iw, const int ih,
+ const enum BlockSize bs,
+ const enum RectTxfmSize ytx,
+ const enum RectTxfmSize uvtx,
+ const enum Dav1dPixelLayout layout,
+ uint8_t *const ay, uint8_t *const ly,
+ uint8_t *const auv, uint8_t *const luv)
+{
+ const uint8_t *const b_dim = dav1d_block_dimensions[bs];
+ const int bw4 = imin(iw - bx, b_dim[0]);
+ const int bh4 = imin(ih - by, b_dim[1]);
+ const int bx4 = bx & 31;
+ const int by4 = by & 31;
+
+ if (bw4 && bh4) {
+ uint8_t (*level_cache_ptr)[4] = level_cache + by * b4_stride + bx;
+ for (int y = 0; y < bh4; y++) {
+ for (int x = 0; x < bw4; x++) {
+ level_cache_ptr[x][0] = filter_level[0][0][0];
+ level_cache_ptr[x][1] = filter_level[1][0][0];
+ }
+ level_cache_ptr += b4_stride;
+ }
+
+ mask_edges_intra(lflvl->filter_y, by4, bx4, bw4, bh4, ytx, ay, ly);
+ }
+
+ if (!auv) return;
+
+ const int ss_ver = layout == DAV1D_PIXEL_LAYOUT_I420;
+ const int ss_hor = layout != DAV1D_PIXEL_LAYOUT_I444;
+ const int cbw4 = imin(((iw + ss_hor) >> ss_hor) - (bx >> ss_hor),
+ (b_dim[0] + ss_hor) >> ss_hor);
+ const int cbh4 = imin(((ih + ss_ver) >> ss_ver) - (by >> ss_ver),
+ (b_dim[1] + ss_ver) >> ss_ver);
+
+ if (!cbw4 || !cbh4) return;
+
+ const int cbx4 = bx4 >> ss_hor;
+ const int cby4 = by4 >> ss_ver;
+
+ uint8_t (*level_cache_ptr)[4] =
+ level_cache + (by >> ss_ver) * b4_stride + (bx >> ss_hor);
+ for (int y = 0; y < cbh4; y++) {
+ for (int x = 0; x < cbw4; x++) {
+ level_cache_ptr[x][2] = filter_level[2][0][0];
+ level_cache_ptr[x][3] = filter_level[3][0][0];
+ }
+ level_cache_ptr += b4_stride;
+ }
+
+ mask_edges_chroma(lflvl->filter_uv, cby4, cbx4, cbw4, cbh4, 0, uvtx,
+ auv, luv, ss_hor, ss_ver);
+}
+
+void dav1d_create_lf_mask_inter(Av1Filter *const lflvl,
+ uint8_t (*const level_cache)[4],
+ const ptrdiff_t b4_stride,
+ const uint8_t (*filter_level)[8][2],
+ const int bx, const int by,
+ const int iw, const int ih,
+ const int skip, const enum BlockSize bs,
+ const enum RectTxfmSize max_ytx,
+ const uint16_t *const tx_masks,
+ const enum RectTxfmSize uvtx,
+ const enum Dav1dPixelLayout layout,
+ uint8_t *const ay, uint8_t *const ly,
+ uint8_t *const auv, uint8_t *const luv)
+{
+ const uint8_t *const b_dim = dav1d_block_dimensions[bs];
+ const int bw4 = imin(iw - bx, b_dim[0]);
+ const int bh4 = imin(ih - by, b_dim[1]);
+ const int bx4 = bx & 31;
+ const int by4 = by & 31;
+
+ if (bw4 && bh4) {
+ uint8_t (*level_cache_ptr)[4] = level_cache + by * b4_stride + bx;
+ for (int y = 0; y < bh4; y++) {
+ for (int x = 0; x < bw4; x++) {
+ level_cache_ptr[x][0] = filter_level[0][0][0];
+ level_cache_ptr[x][1] = filter_level[1][0][0];
+ }
+ level_cache_ptr += b4_stride;
+ }
+
+ mask_edges_inter(lflvl->filter_y, by4, bx4, bw4, bh4, skip,
+ max_ytx, tx_masks, ay, ly);
+ }
+
+ if (!auv) return;
+
+ const int ss_ver = layout == DAV1D_PIXEL_LAYOUT_I420;
+ const int ss_hor = layout != DAV1D_PIXEL_LAYOUT_I444;
+ const int cbw4 = imin(((iw + ss_hor) >> ss_hor) - (bx >> ss_hor),
+ (b_dim[0] + ss_hor) >> ss_hor);
+ const int cbh4 = imin(((ih + ss_ver) >> ss_ver) - (by >> ss_ver),
+ (b_dim[1] + ss_ver) >> ss_ver);
+
+ if (!cbw4 || !cbh4) return;
+
+ const int cbx4 = bx4 >> ss_hor;
+ const int cby4 = by4 >> ss_ver;
+
+ uint8_t (*level_cache_ptr)[4] =
+ level_cache + (by >> ss_ver) * b4_stride + (bx >> ss_hor);
+ for (int y = 0; y < cbh4; y++) {
+ for (int x = 0; x < cbw4; x++) {
+ level_cache_ptr[x][2] = filter_level[2][0][0];
+ level_cache_ptr[x][3] = filter_level[3][0][0];
+ }
+ level_cache_ptr += b4_stride;
+ }
+
+ mask_edges_chroma(lflvl->filter_uv, cby4, cbx4, cbw4, cbh4, skip, uvtx,
+ auv, luv, ss_hor, ss_ver);
+}
+
+void dav1d_calc_eih(Av1FilterLUT *const lim_lut, const int filter_sharpness) {
+ // set E/I/H values from loopfilter level
+ const int sharp = filter_sharpness;
+ for (int level = 0; level < 64; level++) {
+ int limit = level;
+
+ if (sharp > 0) {
+ limit >>= (sharp + 3) >> 2;
+ limit = imin(limit, 9 - sharp);
+ }
+ limit = imax(limit, 1);
+
+ lim_lut->i[level] = limit;
+ lim_lut->e[level] = 2 * (level + 2) + limit;
+ }
+ lim_lut->sharp[0] = (sharp + 3) >> 2;
+ lim_lut->sharp[1] = sharp ? 9 - sharp : 0xff;
+}
+
+static void calc_lf_value(uint8_t (*const lflvl_values)[2],
+ const int base_lvl, const int lf_delta,
+ const int seg_delta,
+ const Dav1dLoopfilterModeRefDeltas *const mr_delta)
+{
+ const int base = iclip(iclip(base_lvl + lf_delta, 0, 63) + seg_delta, 0, 63);
+
+ if (!mr_delta) {
+ memset(lflvl_values, base, 8 * 2);
+ } else {
+ const int sh = base >= 32;
+ lflvl_values[0][0] = lflvl_values[0][1] =
+ iclip(base + (mr_delta->ref_delta[0] * (1 << sh)), 0, 63);
+ for (int r = 1; r < 8; r++) {
+ for (int m = 0; m < 2; m++) {
+ const int delta =
+ mr_delta->mode_delta[m] + mr_delta->ref_delta[r];
+ lflvl_values[r][m] = iclip(base + (delta * (1 << sh)), 0, 63);
+ }
+ }
+ }
+}
+
+static inline void calc_lf_value_chroma(uint8_t (*const lflvl_values)[2],
+ const int base_lvl, const int lf_delta,
+ const int seg_delta,
+ const Dav1dLoopfilterModeRefDeltas *const mr_delta)
+{
+ if (!base_lvl)
+ memset(lflvl_values, 0, 8 * 2);
+ else
+ calc_lf_value(lflvl_values, base_lvl, lf_delta, seg_delta, mr_delta);
+}
+
+void dav1d_calc_lf_values(uint8_t (*const lflvl_values)[4][8][2],
+ const Dav1dFrameHeader *const hdr,
+ const int8_t lf_delta[4])
+{
+ const int n_seg = hdr->segmentation.enabled ? 8 : 1;
+
+ if (!hdr->loopfilter.level_y[0] && !hdr->loopfilter.level_y[1]) {
+ memset(lflvl_values, 0, 8 * 4 * 2 * n_seg);
+ return;
+ }
+
+ const Dav1dLoopfilterModeRefDeltas *const mr_deltas =
+ hdr->loopfilter.mode_ref_delta_enabled ?
+ &hdr->loopfilter.mode_ref_deltas : NULL;
+ for (int s = 0; s < n_seg; s++) {
+ const Dav1dSegmentationData *const segd =
+ hdr->segmentation.enabled ? &hdr->segmentation.seg_data.d[s] : NULL;
+
+ calc_lf_value(lflvl_values[s][0], hdr->loopfilter.level_y[0],
+ lf_delta[0], segd ? segd->delta_lf_y_v : 0, mr_deltas);
+ calc_lf_value(lflvl_values[s][1], hdr->loopfilter.level_y[1],
+ lf_delta[hdr->delta.lf.multi ? 1 : 0],
+ segd ? segd->delta_lf_y_h : 0, mr_deltas);
+ calc_lf_value_chroma(lflvl_values[s][2], hdr->loopfilter.level_u,
+ lf_delta[hdr->delta.lf.multi ? 2 : 0],
+ segd ? segd->delta_lf_u : 0, mr_deltas);
+ calc_lf_value_chroma(lflvl_values[s][3], hdr->loopfilter.level_v,
+ lf_delta[hdr->delta.lf.multi ? 3 : 0],
+ segd ? segd->delta_lf_v : 0, mr_deltas);
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 11:14:39 +0000