| /* |
| * Copyright (c) 2021, Alliance for Open Media. All rights reserved |
| * |
| * This source code is subject to the terms of the BSD 3-Clause Clear License |
| * and the Alliance for Open Media Patent License 1.0. If the BSD 3-Clause Clear |
| * License was not distributed with this source code in the LICENSE file, you |
| * can obtain it at aomedia.org/license/software-license/bsd-3-c-c/. If the |
| * Alliance for Open Media Patent License 1.0 was not distributed with this |
| * source code in the PATENTS file, you can obtain it at |
| * aomedia.org/license/patent-license/. |
| */ |
| |
| #include <assert.h> |
| #include <math.h> |
| #include <string.h> |
| |
| #include "config/aom_scale_rtcd.h" |
| |
| #include "aom/aom_integer.h" |
| #include "av1/common/av1_common_int.h" |
| #include "av1/common/cdef.h" |
| #include "av1/common/cdef_block.h" |
| #include "av1/common/reconinter.h" |
| |
| static int is_8x8_block_skip(MB_MODE_INFO **grid, int mi_row, int mi_col, |
| int mi_stride) { |
| MB_MODE_INFO **mbmi = grid + mi_row * mi_stride + mi_col; |
| for (int r = 0; r < mi_size_high[BLOCK_8X8]; ++r, mbmi += mi_stride) { |
| for (int c = 0; c < mi_size_wide[BLOCK_8X8]; ++c) { |
| if (!mbmi[c]->skip_txfm[PLANE_TYPE_Y]) return 0; |
| } |
| } |
| |
| return 1; |
| } |
| |
| int av1_cdef_compute_sb_list(const CommonModeInfoParams *const mi_params, |
| int mi_row, int mi_col, cdef_list *dlist, |
| BLOCK_SIZE bs) { |
| MB_MODE_INFO **grid = mi_params->mi_grid_base; |
| int maxc = mi_params->mi_cols - mi_col; |
| int maxr = mi_params->mi_rows - mi_row; |
| |
| if (bs == BLOCK_128X128 || bs == BLOCK_128X64) |
| maxc = AOMMIN(maxc, MI_SIZE_128X128); |
| else |
| maxc = AOMMIN(maxc, MI_SIZE_64X64); |
| if (bs == BLOCK_128X128 || bs == BLOCK_64X128) |
| maxr = AOMMIN(maxr, MI_SIZE_128X128); |
| else |
| maxr = AOMMIN(maxr, MI_SIZE_64X64); |
| |
| const int r_step = 2; // mi_size_high[BLOCK_8X8] |
| const int c_step = 2; // mi_size_wide[BLOCK_8X8] |
| const int r_shift = 1; |
| const int c_shift = 1; |
| int count = 0; |
| for (int r = 0; r < maxr; r += r_step) { |
| for (int c = 0; c < maxc; c += c_step) { |
| if (!is_8x8_block_skip(grid, mi_row + r, mi_col + c, |
| mi_params->mi_stride)) { |
| dlist[count].by = r >> r_shift; |
| dlist[count].bx = c >> c_shift; |
| count++; |
| } |
| } |
| } |
| return count; |
| } |
| |
| void cdef_copy_rect8_16bit_to_16bit_c(uint16_t *dst, int dstride, |
| const uint16_t *src, int sstride, int v, |
| int h) { |
| for (int i = 0; i < v; i++) { |
| for (int j = 0; j < h; j++) { |
| dst[i * dstride + j] = src[i * sstride + j]; |
| } |
| } |
| } |
| |
| static void copy_sb8_16(AV1_COMMON *cm, uint16_t *dst, int dstride, |
| const uint16_t *src, int src_voffset, int src_hoffset, |
| int sstride, int vsize, int hsize) { |
| (void)cm; |
| const uint16_t *base = &src[src_voffset * sstride + src_hoffset]; |
| cdef_copy_rect8_16bit_to_16bit(dst, dstride, base, sstride, vsize, hsize); |
| } |
| |
| static INLINE void fill_rect(uint16_t *dst, int dstride, int v, int h, |
| uint16_t x) { |
| for (int i = 0; i < v; i++) { |
| for (int j = 0; j < h; j++) { |
| dst[i * dstride + j] = x; |
| } |
| } |
| } |
| |
| static INLINE void copy_rect(uint16_t *dst, int dstride, const uint16_t *src, |
| int sstride, int v, int h) { |
| for (int i = 0; i < v; i++) { |
| for (int j = 0; j < h; j++) { |
| dst[i * dstride + j] = src[i * sstride + j]; |
| } |
| } |
| } |
| |
| void av1_cdef_frame(YV12_BUFFER_CONFIG *frame, AV1_COMMON *cm, |
| MACROBLOCKD *xd) { |
| const CdefInfo *const cdef_info = &cm->cdef_info; |
| const CommonModeInfoParams *const mi_params = &cm->mi_params; |
| const int num_planes = av1_num_planes(cm); |
| DECLARE_ALIGNED(16, uint16_t, src[CDEF_INBUF_SIZE]); |
| uint16_t *linebuf[3]; |
| uint16_t *colbuf[3]; |
| cdef_list dlist[MI_SIZE_64X64 * MI_SIZE_64X64]; |
| unsigned char *row_cdef, *prev_row_cdef, *curr_row_cdef; |
| int cdef_count; |
| int dir[CDEF_NBLOCKS][CDEF_NBLOCKS] = { { 0 } }; |
| int var[CDEF_NBLOCKS][CDEF_NBLOCKS] = { { 0 } }; |
| int mi_wide_l2[3]; |
| int mi_high_l2[3]; |
| int xdec[3]; |
| int ydec[3]; |
| int coeff_shift = AOMMAX(cm->seq_params.bit_depth - 8, 0); |
| const int nvfb = (mi_params->mi_rows + MI_SIZE_64X64 - 1) / MI_SIZE_64X64; |
| const int nhfb = (mi_params->mi_cols + MI_SIZE_64X64 - 1) / MI_SIZE_64X64; |
| av1_setup_dst_planes(xd->plane, frame, 0, 0, 0, num_planes, NULL); |
| row_cdef = aom_malloc(sizeof(*row_cdef) * (nhfb + 2) * 2); |
| memset(row_cdef, 1, sizeof(*row_cdef) * (nhfb + 2) * 2); |
| prev_row_cdef = row_cdef + 1; |
| curr_row_cdef = prev_row_cdef + nhfb + 2; |
| for (int pli = 0; pli < num_planes; pli++) { |
| xdec[pli] = xd->plane[pli].subsampling_x; |
| ydec[pli] = xd->plane[pli].subsampling_y; |
| mi_wide_l2[pli] = MI_SIZE_LOG2 - xd->plane[pli].subsampling_x; |
| mi_high_l2[pli] = MI_SIZE_LOG2 - xd->plane[pli].subsampling_y; |
| } |
| const int stride = (mi_params->mi_cols << MI_SIZE_LOG2) + 2 * CDEF_HBORDER; |
| for (int pli = 0; pli < num_planes; pli++) { |
| linebuf[pli] = aom_malloc(sizeof(*linebuf) * CDEF_VBORDER * stride); |
| colbuf[pli] = |
| aom_malloc(sizeof(*colbuf) * |
| ((CDEF_BLOCKSIZE << mi_high_l2[pli]) + 2 * CDEF_VBORDER) * |
| CDEF_HBORDER); |
| } |
| for (int fbr = 0; fbr < nvfb; fbr++) { |
| for (int pli = 0; pli < num_planes; pli++) { |
| const int block_height = |
| (MI_SIZE_64X64 << mi_high_l2[pli]) + 2 * CDEF_VBORDER; |
| fill_rect(colbuf[pli], CDEF_HBORDER, block_height, CDEF_HBORDER, |
| CDEF_VERY_LARGE); |
| } |
| int cdef_left = 1; |
| for (int fbc = 0; fbc < nhfb; fbc++) { |
| int level, sec_strength; |
| int uv_level, uv_sec_strength; |
| int nhb, nvb; |
| int cstart = 0; |
| curr_row_cdef[fbc] = 0; |
| if (mi_params->mi_grid_base[MI_SIZE_64X64 * fbr * mi_params->mi_stride + |
| MI_SIZE_64X64 * fbc] == NULL || |
| mi_params |
| ->mi_grid_base[MI_SIZE_64X64 * fbr * mi_params->mi_stride + |
| MI_SIZE_64X64 * fbc] |
| ->cdef_strength == -1) { |
| cdef_left = 0; |
| continue; |
| } |
| if (!cdef_left) cstart = -CDEF_HBORDER; |
| nhb = AOMMIN(MI_SIZE_64X64, mi_params->mi_cols - MI_SIZE_64X64 * fbc); |
| nvb = AOMMIN(MI_SIZE_64X64, mi_params->mi_rows - MI_SIZE_64X64 * fbr); |
| int frame_top, frame_left, frame_bottom, frame_right; |
| |
| int mi_row = MI_SIZE_64X64 * fbr; |
| int mi_col = MI_SIZE_64X64 * fbc; |
| // for the current filter block, it's top left corner mi structure (mi_tl) |
| // is first accessed to check whether the top and left boundaries are |
| // frame boundaries. Then bottom-left and top-right mi structures are |
| // accessed to check whether the bottom and right boundaries |
| // (respectively) are frame boundaries. |
| // |
| // Note that we can't just check the bottom-right mi structure - eg. if |
| // we're at the right-hand edge of the frame but not the bottom, then |
| // the bottom-right mi is NULL but the bottom-left is not. |
| frame_top = (mi_row == 0) ? 1 : 0; |
| frame_left = (mi_col == 0) ? 1 : 0; |
| |
| if (fbr != nvfb - 1) |
| frame_bottom = (mi_row + MI_SIZE_64X64 == mi_params->mi_rows) ? 1 : 0; |
| else |
| frame_bottom = 1; |
| |
| if (fbc != nhfb - 1) |
| frame_right = (mi_col + MI_SIZE_64X64 == mi_params->mi_cols) ? 1 : 0; |
| else |
| frame_right = 1; |
| |
| const int mbmi_cdef_strength = |
| mi_params |
| ->mi_grid_base[MI_SIZE_64X64 * fbr * mi_params->mi_stride + |
| MI_SIZE_64X64 * fbc] |
| ->cdef_strength; |
| level = |
| cdef_info->cdef_strengths[mbmi_cdef_strength] / CDEF_SEC_STRENGTHS; |
| sec_strength = |
| cdef_info->cdef_strengths[mbmi_cdef_strength] % CDEF_SEC_STRENGTHS; |
| sec_strength += sec_strength == 3; |
| uv_level = |
| cdef_info->cdef_uv_strengths[mbmi_cdef_strength] / CDEF_SEC_STRENGTHS; |
| uv_sec_strength = |
| cdef_info->cdef_uv_strengths[mbmi_cdef_strength] % CDEF_SEC_STRENGTHS; |
| uv_sec_strength += uv_sec_strength == 3; |
| if ((level == 0 && sec_strength == 0 && uv_level == 0 && |
| uv_sec_strength == 0) || |
| (cdef_count = av1_cdef_compute_sb_list(mi_params, fbr * MI_SIZE_64X64, |
| fbc * MI_SIZE_64X64, dlist, |
| BLOCK_64X64)) == 0) { |
| cdef_left = 0; |
| continue; |
| } |
| |
| curr_row_cdef[fbc] = 1; |
| for (int pli = 0; pli < num_planes; pli++) { |
| int coffset; |
| int rend, cend; |
| int damping = cdef_info->cdef_damping; |
| int hsize = nhb << mi_wide_l2[pli]; |
| int vsize = nvb << mi_high_l2[pli]; |
| |
| if (pli) { |
| level = uv_level; |
| sec_strength = uv_sec_strength; |
| } |
| |
| if (fbc == nhfb - 1) |
| cend = hsize; |
| else |
| cend = hsize + CDEF_HBORDER; |
| |
| if (fbr == nvfb - 1) |
| rend = vsize; |
| else |
| rend = vsize + CDEF_VBORDER; |
| |
| coffset = fbc * MI_SIZE_64X64 << mi_wide_l2[pli]; |
| if (fbc == nhfb - 1) { |
| /* On the last superblock column, fill in the right border with |
| CDEF_VERY_LARGE to avoid filtering with the outside. */ |
| fill_rect(&src[cend + CDEF_HBORDER], CDEF_BSTRIDE, |
| rend + CDEF_VBORDER, hsize + CDEF_HBORDER - cend, |
| CDEF_VERY_LARGE); |
| } |
| if (fbr == nvfb - 1) { |
| /* On the last superblock row, fill in the bottom border with |
| CDEF_VERY_LARGE to avoid filtering with the outside. */ |
| fill_rect(&src[(rend + CDEF_VBORDER) * CDEF_BSTRIDE], CDEF_BSTRIDE, |
| CDEF_VBORDER, hsize + 2 * CDEF_HBORDER, CDEF_VERY_LARGE); |
| } |
| /* Copy in the pixels we need from the current superblock for |
| deringing.*/ |
| copy_sb8_16(cm, |
| &src[CDEF_VBORDER * CDEF_BSTRIDE + CDEF_HBORDER + cstart], |
| CDEF_BSTRIDE, xd->plane[pli].dst.buf, |
| (MI_SIZE_64X64 << mi_high_l2[pli]) * fbr, coffset + cstart, |
| xd->plane[pli].dst.stride, rend, cend - cstart); |
| if (!prev_row_cdef[fbc]) { |
| copy_sb8_16(cm, &src[CDEF_HBORDER], CDEF_BSTRIDE, |
| xd->plane[pli].dst.buf, |
| (MI_SIZE_64X64 << mi_high_l2[pli]) * fbr - CDEF_VBORDER, |
| coffset, xd->plane[pli].dst.stride, CDEF_VBORDER, hsize); |
| } else if (fbr > 0) { |
| copy_rect(&src[CDEF_HBORDER], CDEF_BSTRIDE, &linebuf[pli][coffset], |
| stride, CDEF_VBORDER, hsize); |
| } else { |
| fill_rect(&src[CDEF_HBORDER], CDEF_BSTRIDE, CDEF_VBORDER, hsize, |
| CDEF_VERY_LARGE); |
| } |
| if (!prev_row_cdef[fbc - 1]) { |
| copy_sb8_16(cm, src, CDEF_BSTRIDE, xd->plane[pli].dst.buf, |
| (MI_SIZE_64X64 << mi_high_l2[pli]) * fbr - CDEF_VBORDER, |
| coffset - CDEF_HBORDER, xd->plane[pli].dst.stride, |
| CDEF_VBORDER, CDEF_HBORDER); |
| } else if (fbr > 0 && fbc > 0) { |
| copy_rect(src, CDEF_BSTRIDE, &linebuf[pli][coffset - CDEF_HBORDER], |
| stride, CDEF_VBORDER, CDEF_HBORDER); |
| } else { |
| fill_rect(src, CDEF_BSTRIDE, CDEF_VBORDER, CDEF_HBORDER, |
| CDEF_VERY_LARGE); |
| } |
| if (!prev_row_cdef[fbc + 1]) { |
| copy_sb8_16(cm, &src[CDEF_HBORDER + (nhb << mi_wide_l2[pli])], |
| CDEF_BSTRIDE, xd->plane[pli].dst.buf, |
| (MI_SIZE_64X64 << mi_high_l2[pli]) * fbr - CDEF_VBORDER, |
| coffset + hsize, xd->plane[pli].dst.stride, CDEF_VBORDER, |
| CDEF_HBORDER); |
| } else if (fbr > 0 && fbc < nhfb - 1) { |
| copy_rect(&src[hsize + CDEF_HBORDER], CDEF_BSTRIDE, |
| &linebuf[pli][coffset + hsize], stride, CDEF_VBORDER, |
| CDEF_HBORDER); |
| } else { |
| fill_rect(&src[hsize + CDEF_HBORDER], CDEF_BSTRIDE, CDEF_VBORDER, |
| CDEF_HBORDER, CDEF_VERY_LARGE); |
| } |
| if (cdef_left) { |
| /* If we deringed the superblock on the left then we need to copy in |
| saved pixels. */ |
| copy_rect(src, CDEF_BSTRIDE, colbuf[pli], CDEF_HBORDER, |
| rend + CDEF_VBORDER, CDEF_HBORDER); |
| } |
| /* Saving pixels in case we need to dering the superblock on the |
| right. */ |
| copy_rect(colbuf[pli], CDEF_HBORDER, src + hsize, CDEF_BSTRIDE, |
| rend + CDEF_VBORDER, CDEF_HBORDER); |
| copy_sb8_16( |
| cm, &linebuf[pli][coffset], stride, xd->plane[pli].dst.buf, |
| (MI_SIZE_64X64 << mi_high_l2[pli]) * (fbr + 1) - CDEF_VBORDER, |
| coffset, xd->plane[pli].dst.stride, CDEF_VBORDER, hsize); |
| |
| if (frame_top) { |
| fill_rect(src, CDEF_BSTRIDE, CDEF_VBORDER, hsize + 2 * CDEF_HBORDER, |
| CDEF_VERY_LARGE); |
| } |
| if (frame_left) { |
| fill_rect(src, CDEF_BSTRIDE, vsize + 2 * CDEF_VBORDER, CDEF_HBORDER, |
| CDEF_VERY_LARGE); |
| } |
| if (frame_bottom) { |
| fill_rect(&src[(vsize + CDEF_VBORDER) * CDEF_BSTRIDE], CDEF_BSTRIDE, |
| CDEF_VBORDER, hsize + 2 * CDEF_HBORDER, CDEF_VERY_LARGE); |
| } |
| if (frame_right) { |
| fill_rect(&src[hsize + CDEF_HBORDER], CDEF_BSTRIDE, |
| vsize + 2 * CDEF_VBORDER, CDEF_HBORDER, CDEF_VERY_LARGE); |
| } |
| |
| av1_cdef_filter_fb( |
| NULL, |
| &xd->plane[pli] |
| .dst.buf[xd->plane[pli].dst.stride * |
| (MI_SIZE_64X64 * fbr << mi_high_l2[pli]) + |
| (fbc * MI_SIZE_64X64 << mi_wide_l2[pli])], |
| xd->plane[pli].dst.stride, |
| &src[CDEF_VBORDER * CDEF_BSTRIDE + CDEF_HBORDER], xdec[pli], |
| ydec[pli], dir, NULL, var, pli, dlist, cdef_count, level, |
| sec_strength, damping, coeff_shift); |
| } |
| cdef_left = 1; |
| } |
| { |
| unsigned char *tmp = prev_row_cdef; |
| prev_row_cdef = curr_row_cdef; |
| curr_row_cdef = tmp; |
| } |
| } |
| aom_free(row_cdef); |
| for (int pli = 0; pli < num_planes; pli++) { |
| aom_free(linebuf[pli]); |
| aom_free(colbuf[pli]); |
| } |
| } |
