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diff --git a/third_party/dav1d/src/filmgrain_tmpl.c b/third_party/dav1d/src/filmgrain_tmpl.c
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+/*
+ * Copyright © 2018, Niklas Haas
+ * 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 "common/attributes.h"
+#include "common/intops.h"
+
+#include "src/filmgrain.h"
+#include "src/tables.h"
+
+#define SUB_GRAIN_WIDTH 44
+#define SUB_GRAIN_HEIGHT 38
+
+static inline int get_random_number(const int bits, unsigned *const state) {
+ const int r = *state;
+ unsigned bit = ((r >> 0) ^ (r >> 1) ^ (r >> 3) ^ (r >> 12)) & 1;
+ *state = (r >> 1) | (bit << 15);
+
+ return (*state >> (16 - bits)) & ((1 << bits) - 1);
+}
+
+static inline int round2(const int x, const uint64_t shift) {
+ return (x + ((1 << shift) >> 1)) >> shift;
+}
+
+static void generate_grain_y_c(entry buf[][GRAIN_WIDTH],
+ const Dav1dFilmGrainData *const data
+ HIGHBD_DECL_SUFFIX)
+{
+ const int bitdepth_min_8 = bitdepth_from_max(bitdepth_max) - 8;
+ unsigned seed = data->seed;
+ const int shift = 4 - bitdepth_min_8 + data->grain_scale_shift;
+ const int grain_ctr = 128 << bitdepth_min_8;
+ const int grain_min = -grain_ctr, grain_max = grain_ctr - 1;
+
+ for (int y = 0; y < GRAIN_HEIGHT; y++) {
+ for (int x = 0; x < GRAIN_WIDTH; x++) {
+ const int value = get_random_number(11, &seed);
+ buf[y][x] = round2(dav1d_gaussian_sequence[ value ], shift);
+ }
+ }
+
+ const int ar_pad = 3;
+ const int ar_lag = data->ar_coeff_lag;
+
+ for (int y = ar_pad; y < GRAIN_HEIGHT; y++) {
+ for (int x = ar_pad; x < GRAIN_WIDTH - ar_pad; x++) {
+ const int8_t *coeff = data->ar_coeffs_y;
+ int sum = 0;
+ for (int dy = -ar_lag; dy <= 0; dy++) {
+ for (int dx = -ar_lag; dx <= ar_lag; dx++) {
+ if (!dx && !dy)
+ break;
+ sum += *(coeff++) * buf[y + dy][x + dx];
+ }
+ }
+
+ const int grain = buf[y][x] + round2(sum, data->ar_coeff_shift);
+ buf[y][x] = iclip(grain, grain_min, grain_max);
+ }
+ }
+}
+
+static NOINLINE void
+generate_grain_uv_c(entry buf[][GRAIN_WIDTH],
+ const entry buf_y[][GRAIN_WIDTH],
+ const Dav1dFilmGrainData *const data, const intptr_t uv,
+ const int subx, const int suby HIGHBD_DECL_SUFFIX)
+{
+ const int bitdepth_min_8 = bitdepth_from_max(bitdepth_max) - 8;
+ unsigned seed = data->seed ^ (uv ? 0x49d8 : 0xb524);
+ const int shift = 4 - bitdepth_min_8 + data->grain_scale_shift;
+ const int grain_ctr = 128 << bitdepth_min_8;
+ const int grain_min = -grain_ctr, grain_max = grain_ctr - 1;
+
+ const int chromaW = subx ? SUB_GRAIN_WIDTH : GRAIN_WIDTH;
+ const int chromaH = suby ? SUB_GRAIN_HEIGHT : GRAIN_HEIGHT;
+
+ for (int y = 0; y < chromaH; y++) {
+ for (int x = 0; x < chromaW; x++) {
+ const int value = get_random_number(11, &seed);
+ buf[y][x] = round2(dav1d_gaussian_sequence[ value ], shift);
+ }
+ }
+
+ const int ar_pad = 3;
+ const int ar_lag = data->ar_coeff_lag;
+
+ for (int y = ar_pad; y < chromaH; y++) {
+ for (int x = ar_pad; x < chromaW - ar_pad; x++) {
+ const int8_t *coeff = data->ar_coeffs_uv[uv];
+ int sum = 0;
+ for (int dy = -ar_lag; dy <= 0; dy++) {
+ for (int dx = -ar_lag; dx <= ar_lag; dx++) {
+ // For the final (current) pixel, we need to add in the
+ // contribution from the luma grain texture
+ if (!dx && !dy) {
+ if (!data->num_y_points)
+ break;
+ int luma = 0;
+ const int lumaX = ((x - ar_pad) << subx) + ar_pad;
+ const int lumaY = ((y - ar_pad) << suby) + ar_pad;
+ for (int i = 0; i <= suby; i++) {
+ for (int j = 0; j <= subx; j++) {
+ luma += buf_y[lumaY + i][lumaX + j];
+ }
+ }
+ luma = round2(luma, subx + suby);
+ sum += luma * (*coeff);
+ break;
+ }
+
+ sum += *(coeff++) * buf[y + dy][x + dx];
+ }
+ }
+
+ const int grain = buf[y][x] + round2(sum, data->ar_coeff_shift);
+ buf[y][x] = iclip(grain, grain_min, grain_max);
+ }
+ }
+}
+
+#define gnuv_ss_fn(nm, ss_x, ss_y) \
+static decl_generate_grain_uv_fn(generate_grain_uv_##nm##_c) { \
+ generate_grain_uv_c(buf, buf_y, data, uv, ss_x, ss_y HIGHBD_TAIL_SUFFIX); \
+}
+
+gnuv_ss_fn(420, 1, 1);
+gnuv_ss_fn(422, 1, 0);
+gnuv_ss_fn(444, 0, 0);
+
+// samples from the correct block of a grain LUT, while taking into account the
+// offsets provided by the offsets cache
+static inline entry sample_lut(const entry grain_lut[][GRAIN_WIDTH],
+ const int offsets[2][2], const int subx, const int suby,
+ const int bx, const int by, const int x, const int y)
+{
+ const int randval = offsets[bx][by];
+ const int offx = 3 + (2 >> subx) * (3 + (randval >> 4));
+ const int offy = 3 + (2 >> suby) * (3 + (randval & 0xF));
+ return grain_lut[offy + y + (BLOCK_SIZE >> suby) * by]
+ [offx + x + (BLOCK_SIZE >> subx) * bx];
+}
+
+static void fgy_32x32xn_c(pixel *const dst_row, const pixel *const src_row,
+ const ptrdiff_t stride,
+ const Dav1dFilmGrainData *const data, const size_t pw,
+ const uint8_t scaling[SCALING_SIZE],
+ const entry grain_lut[][GRAIN_WIDTH],
+ const int bh, const int row_num HIGHBD_DECL_SUFFIX)
+{
+ const int rows = 1 + (data->overlap_flag && row_num > 0);
+ const int bitdepth_min_8 = bitdepth_from_max(bitdepth_max) - 8;
+ const int grain_ctr = 128 << bitdepth_min_8;
+ const int grain_min = -grain_ctr, grain_max = grain_ctr - 1;
+
+ int min_value, max_value;
+ if (data->clip_to_restricted_range) {
+ min_value = 16 << bitdepth_min_8;
+ max_value = 235 << bitdepth_min_8;
+ } else {
+ min_value = 0;
+ max_value = BITDEPTH_MAX;
+ }
+
+ // seed[0] contains the current row, seed[1] contains the previous
+ unsigned seed[2];
+ for (int i = 0; i < rows; i++) {
+ seed[i] = data->seed;
+ seed[i] ^= (((row_num - i) * 37 + 178) & 0xFF) << 8;
+ seed[i] ^= (((row_num - i) * 173 + 105) & 0xFF);
+ }
+
+ assert(stride % (BLOCK_SIZE * sizeof(pixel)) == 0);
+
+ int offsets[2 /* col offset */][2 /* row offset */];
+
+ // process this row in BLOCK_SIZE^2 blocks
+ for (unsigned bx = 0; bx < pw; bx += BLOCK_SIZE) {
+ const int bw = imin(BLOCK_SIZE, (int) pw - bx);
+
+ if (data->overlap_flag && bx) {
+ // shift previous offsets left
+ for (int i = 0; i < rows; i++)
+ offsets[1][i] = offsets[0][i];
+ }
+
+ // update current offsets
+ for (int i = 0; i < rows; i++)
+ offsets[0][i] = get_random_number(8, &seed[i]);
+
+ // x/y block offsets to compensate for overlapped regions
+ const int ystart = data->overlap_flag && row_num ? imin(2, bh) : 0;
+ const int xstart = data->overlap_flag && bx ? imin(2, bw) : 0;
+
+ static const int w[2][2] = { { 27, 17 }, { 17, 27 } };
+
+#define add_noise_y(x, y, grain) \
+ const pixel *const src = src_row + (y) * PXSTRIDE(stride) + (x) + bx; \
+ pixel *const dst = dst_row + (y) * PXSTRIDE(stride) + (x) + bx; \
+ const int noise = round2(scaling[ *src ] * (grain), data->scaling_shift); \
+ *dst = iclip(*src + noise, min_value, max_value);
+
+ for (int y = ystart; y < bh; y++) {
+ // Non-overlapped image region (straightforward)
+ for (int x = xstart; x < bw; x++) {
+ int grain = sample_lut(grain_lut, offsets, 0, 0, 0, 0, x, y);
+ add_noise_y(x, y, grain);
+ }
+
+ // Special case for overlapped column
+ for (int x = 0; x < xstart; x++) {
+ int grain = sample_lut(grain_lut, offsets, 0, 0, 0, 0, x, y);
+ int old = sample_lut(grain_lut, offsets, 0, 0, 1, 0, x, y);
+ grain = round2(old * w[x][0] + grain * w[x][1], 5);
+ grain = iclip(grain, grain_min, grain_max);
+ add_noise_y(x, y, grain);
+ }
+ }
+
+ for (int y = 0; y < ystart; y++) {
+ // Special case for overlapped row (sans corner)
+ for (int x = xstart; x < bw; x++) {
+ int grain = sample_lut(grain_lut, offsets, 0, 0, 0, 0, x, y);
+ int old = sample_lut(grain_lut, offsets, 0, 0, 0, 1, x, y);
+ grain = round2(old * w[y][0] + grain * w[y][1], 5);
+ grain = iclip(grain, grain_min, grain_max);
+ add_noise_y(x, y, grain);
+ }
+
+ // Special case for doubly-overlapped corner
+ for (int x = 0; x < xstart; x++) {
+ // Blend the top pixel with the top left block
+ int top = sample_lut(grain_lut, offsets, 0, 0, 0, 1, x, y);
+ int old = sample_lut(grain_lut, offsets, 0, 0, 1, 1, x, y);
+ top = round2(old * w[x][0] + top * w[x][1], 5);
+ top = iclip(top, grain_min, grain_max);
+
+ // Blend the current pixel with the left block
+ int grain = sample_lut(grain_lut, offsets, 0, 0, 0, 0, x, y);
+ old = sample_lut(grain_lut, offsets, 0, 0, 1, 0, x, y);
+ grain = round2(old * w[x][0] + grain * w[x][1], 5);
+ grain = iclip(grain, grain_min, grain_max);
+
+ // Mix the row rows together and apply grain
+ grain = round2(top * w[y][0] + grain * w[y][1], 5);
+ grain = iclip(grain, grain_min, grain_max);
+ add_noise_y(x, y, grain);
+ }
+ }
+ }
+}
+
+static NOINLINE void
+fguv_32x32xn_c(pixel *const dst_row, const pixel *const src_row,
+ const ptrdiff_t stride, const Dav1dFilmGrainData *const data,
+ const size_t pw, const uint8_t scaling[SCALING_SIZE],
+ const entry grain_lut[][GRAIN_WIDTH], const int bh,
+ const int row_num, const pixel *const luma_row,
+ const ptrdiff_t luma_stride, const int uv, const int is_id,
+ const int sx, const int sy HIGHBD_DECL_SUFFIX)
+{
+ const int rows = 1 + (data->overlap_flag && row_num > 0);
+ const int bitdepth_min_8 = bitdepth_from_max(bitdepth_max) - 8;
+ const int grain_ctr = 128 << bitdepth_min_8;
+ const int grain_min = -grain_ctr, grain_max = grain_ctr - 1;
+
+ int min_value, max_value;
+ if (data->clip_to_restricted_range) {
+ min_value = 16 << bitdepth_min_8;
+ max_value = (is_id ? 235 : 240) << bitdepth_min_8;
+ } else {
+ min_value = 0;
+ max_value = BITDEPTH_MAX;
+ }
+
+ // seed[0] contains the current row, seed[1] contains the previous
+ unsigned seed[2];
+ for (int i = 0; i < rows; i++) {
+ seed[i] = data->seed;
+ seed[i] ^= (((row_num - i) * 37 + 178) & 0xFF) << 8;
+ seed[i] ^= (((row_num - i) * 173 + 105) & 0xFF);
+ }
+
+ assert(stride % (BLOCK_SIZE * sizeof(pixel)) == 0);
+
+ int offsets[2 /* col offset */][2 /* row offset */];
+
+ // process this row in BLOCK_SIZE^2 blocks (subsampled)
+ for (unsigned bx = 0; bx < pw; bx += BLOCK_SIZE >> sx) {
+ const int bw = imin(BLOCK_SIZE >> sx, (int)(pw - bx));
+ if (data->overlap_flag && bx) {
+ // shift previous offsets left
+ for (int i = 0; i < rows; i++)
+ offsets[1][i] = offsets[0][i];
+ }
+
+ // update current offsets
+ for (int i = 0; i < rows; i++)
+ offsets[0][i] = get_random_number(8, &seed[i]);
+
+ // x/y block offsets to compensate for overlapped regions
+ const int ystart = data->overlap_flag && row_num ? imin(2 >> sy, bh) : 0;
+ const int xstart = data->overlap_flag && bx ? imin(2 >> sx, bw) : 0;
+
+ static const int w[2 /* sub */][2 /* off */][2] = {
+ { { 27, 17 }, { 17, 27 } },
+ { { 23, 22 } },
+ };
+
+#define add_noise_uv(x, y, grain) \
+ const int lx = (bx + x) << sx; \
+ const int ly = y << sy; \
+ const pixel *const luma = luma_row + ly * PXSTRIDE(luma_stride) + lx; \
+ pixel avg = luma[0]; \
+ if (sx) \
+ avg = (avg + luma[1] + 1) >> 1; \
+ const pixel *const src = src_row + (y) * PXSTRIDE(stride) + (bx + (x)); \
+ pixel *const dst = dst_row + (y) * PXSTRIDE(stride) + (bx + (x)); \
+ int val = avg; \
+ if (!data->chroma_scaling_from_luma) { \
+ const int combined = avg * data->uv_luma_mult[uv] + \
+ *src * data->uv_mult[uv]; \
+ val = iclip_pixel( (combined >> 6) + \
+ (data->uv_offset[uv] * (1 << bitdepth_min_8)) ); \
+ } \
+ const int noise = round2(scaling[ val ] * (grain), data->scaling_shift); \
+ *dst = iclip(*src + noise, min_value, max_value);
+
+ for (int y = ystart; y < bh; y++) {
+ // Non-overlapped image region (straightforward)
+ for (int x = xstart; x < bw; x++) {
+ int grain = sample_lut(grain_lut, offsets, sx, sy, 0, 0, x, y);
+ add_noise_uv(x, y, grain);
+ }
+
+ // Special case for overlapped column
+ for (int x = 0; x < xstart; x++) {
+ int grain = sample_lut(grain_lut, offsets, sx, sy, 0, 0, x, y);
+ int old = sample_lut(grain_lut, offsets, sx, sy, 1, 0, x, y);
+ grain = round2(old * w[sx][x][0] + grain * w[sx][x][1], 5);
+ grain = iclip(grain, grain_min, grain_max);
+ add_noise_uv(x, y, grain);
+ }
+ }
+
+ for (int y = 0; y < ystart; y++) {
+ // Special case for overlapped row (sans corner)
+ for (int x = xstart; x < bw; x++) {
+ int grain = sample_lut(grain_lut, offsets, sx, sy, 0, 0, x, y);
+ int old = sample_lut(grain_lut, offsets, sx, sy, 0, 1, x, y);
+ grain = round2(old * w[sy][y][0] + grain * w[sy][y][1], 5);
+ grain = iclip(grain, grain_min, grain_max);
+ add_noise_uv(x, y, grain);
+ }
+
+ // Special case for doubly-overlapped corner
+ for (int x = 0; x < xstart; x++) {
+ // Blend the top pixel with the top left block
+ int top = sample_lut(grain_lut, offsets, sx, sy, 0, 1, x, y);
+ int old = sample_lut(grain_lut, offsets, sx, sy, 1, 1, x, y);
+ top = round2(old * w[sx][x][0] + top * w[sx][x][1], 5);
+ top = iclip(top, grain_min, grain_max);
+
+ // Blend the current pixel with the left block
+ int grain = sample_lut(grain_lut, offsets, sx, sy, 0, 0, x, y);
+ old = sample_lut(grain_lut, offsets, sx, sy, 1, 0, x, y);
+ grain = round2(old * w[sx][x][0] + grain * w[sx][x][1], 5);
+ grain = iclip(grain, grain_min, grain_max);
+
+ // Mix the row rows together and apply to image
+ grain = round2(top * w[sy][y][0] + grain * w[sy][y][1], 5);
+ grain = iclip(grain, grain_min, grain_max);
+ add_noise_uv(x, y, grain);
+ }
+ }
+ }
+}
+
+#define fguv_ss_fn(nm, ss_x, ss_y) \
+static decl_fguv_32x32xn_fn(fguv_32x32xn_##nm##_c) { \
+ fguv_32x32xn_c(dst_row, src_row, stride, data, pw, scaling, grain_lut, bh, \
+ row_num, luma_row, luma_stride, uv_pl, is_id, ss_x, ss_y \
+ HIGHBD_TAIL_SUFFIX); \
+}
+
+fguv_ss_fn(420, 1, 1);
+fguv_ss_fn(422, 1, 0);
+fguv_ss_fn(444, 0, 0);
+
+#if HAVE_ASM
+#if ARCH_AARCH64 || ARCH_ARM
+#include "src/arm/filmgrain.h"
+#elif ARCH_X86
+#include "src/x86/filmgrain.h"
+#endif
+#endif
+
+COLD void bitfn(dav1d_film_grain_dsp_init)(Dav1dFilmGrainDSPContext *const c) {
+ c->generate_grain_y = generate_grain_y_c;
+ c->generate_grain_uv[DAV1D_PIXEL_LAYOUT_I420 - 1] = generate_grain_uv_420_c;
+ c->generate_grain_uv[DAV1D_PIXEL_LAYOUT_I422 - 1] = generate_grain_uv_422_c;
+ c->generate_grain_uv[DAV1D_PIXEL_LAYOUT_I444 - 1] = generate_grain_uv_444_c;
+
+ c->fgy_32x32xn = fgy_32x32xn_c;
+ c->fguv_32x32xn[DAV1D_PIXEL_LAYOUT_I420 - 1] = fguv_32x32xn_420_c;
+ c->fguv_32x32xn[DAV1D_PIXEL_LAYOUT_I422 - 1] = fguv_32x32xn_422_c;
+ c->fguv_32x32xn[DAV1D_PIXEL_LAYOUT_I444 - 1] = fguv_32x32xn_444_c;
+
+#if HAVE_ASM
+#if ARCH_AARCH64 || ARCH_ARM
+ film_grain_dsp_init_arm(c);
+#elif ARCH_X86
+ film_grain_dsp_init_x86(c);
+#endif
+#endif
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-05 22:26:37 +0000