| /* |
| * 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. |
| */ |
| |
| #ifndef DAV1D_SRC_ENV_H |
| #define DAV1D_SRC_ENV_H |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| |
| #include "src/levels.h" |
| #include "src/ref_mvs.h" |
| #include "src/tables.h" |
| |
| typedef struct BlockContext { |
| uint8_t ALIGN(mode[32], 8); |
| uint8_t ALIGN(lcoef[32], 8); |
| uint8_t ALIGN(ccoef[2][32], 8); |
| uint8_t ALIGN(seg_pred[32], 8); |
| uint8_t ALIGN(skip[32], 8); |
| uint8_t ALIGN(skip_mode[32], 8); |
| uint8_t ALIGN(intra[32], 8); |
| uint8_t ALIGN(comp_type[32], 8); |
| int8_t ALIGN(ref[2][32], 8); // -1 means intra |
| uint8_t ALIGN(filter[2][32], 8); // 3 means unset |
| int8_t ALIGN(tx_intra[32], 8); |
| int8_t ALIGN(tx[32], 8); |
| uint8_t ALIGN(tx_lpf_y[32], 8); |
| uint8_t ALIGN(tx_lpf_uv[32], 8); |
| uint8_t ALIGN(partition[16], 8); |
| uint8_t ALIGN(uvmode[32], 8); |
| uint8_t ALIGN(pal_sz[32], 8); |
| } BlockContext; |
| |
| static inline int get_intra_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const int yb4, const int xb4, |
| const int have_top, const int have_left) |
| { |
| if (have_left) { |
| if (have_top) { |
| const int ctx = l->intra[yb4] + a->intra[xb4]; |
| return ctx + (ctx == 2); |
| } else |
| return l->intra[yb4] * 2; |
| } else { |
| return have_top ? a->intra[xb4] * 2 : 0; |
| } |
| } |
| |
| static inline int get_tx_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const TxfmInfo *const max_tx, |
| const int yb4, const int xb4) |
| { |
| return (l->tx_intra[yb4] >= max_tx->lh) + (a->tx_intra[xb4] >= max_tx->lw); |
| } |
| |
| static inline int get_partition_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const enum BlockLevel bl, |
| const int yb8, const int xb8) |
| { |
| return ((a->partition[xb8] >> (4 - bl)) & 1) + |
| (((l->partition[yb8] >> (4 - bl)) & 1) << 1); |
| } |
| |
| static inline unsigned gather_left_partition_prob(const uint16_t *const in, |
| const enum BlockLevel bl) |
| { |
| unsigned out = in[PARTITION_H - 1] - in[PARTITION_H]; |
| // Exploit the fact that cdfs for PARTITION_SPLIT, PARTITION_T_TOP_SPLIT, |
| // PARTITION_T_BOTTOM_SPLIT and PARTITION_T_LEFT_SPLIT are neighbors. |
| out += in[PARTITION_SPLIT - 1] - in[PARTITION_T_LEFT_SPLIT]; |
| if (bl != BL_128X128) |
| out += in[PARTITION_H4 - 1] - in[PARTITION_H4]; |
| return out; |
| } |
| |
| static inline unsigned gather_top_partition_prob(const uint16_t *const in, |
| const enum BlockLevel bl) |
| { |
| // Exploit the fact that cdfs for PARTITION_V, PARTITION_SPLIT and |
| // PARTITION_T_TOP_SPLIT are neighbors. |
| unsigned out = in[PARTITION_V - 1] - in[PARTITION_T_TOP_SPLIT]; |
| // Exploit the facts that cdfs for PARTITION_T_LEFT_SPLIT and |
| // PARTITION_T_RIGHT_SPLIT are neighbors, the probability for |
| // PARTITION_V4 is always zero, and the probability for |
| // PARTITION_T_RIGHT_SPLIT is zero in 128x128 blocks. |
| out += in[PARTITION_T_LEFT_SPLIT - 1]; |
| if (bl != BL_128X128) |
| out += in[PARTITION_V4 - 1] - in[PARTITION_T_RIGHT_SPLIT]; |
| return out; |
| } |
| |
| static inline enum TxfmType get_uv_inter_txtp(const TxfmInfo *const uvt_dim, |
| const enum TxfmType ytxtp) |
| { |
| if (uvt_dim->max == TX_32X32) |
| return ytxtp == IDTX ? IDTX : DCT_DCT; |
| if (uvt_dim->min == TX_16X16 && |
| ((1 << ytxtp) & ((1 << H_FLIPADST) | (1 << V_FLIPADST) | |
| (1 << H_ADST) | (1 << V_ADST)))) |
| { |
| return DCT_DCT; |
| } |
| |
| return ytxtp; |
| } |
| |
| static inline int get_filter_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const int comp, const int dir, const int ref, |
| const int yb4, const int xb4) |
| { |
| const int a_filter = (a->ref[0][xb4] == ref || a->ref[1][xb4] == ref) ? |
| a->filter[dir][xb4] : DAV1D_N_SWITCHABLE_FILTERS; |
| const int l_filter = (l->ref[0][yb4] == ref || l->ref[1][yb4] == ref) ? |
| l->filter[dir][yb4] : DAV1D_N_SWITCHABLE_FILTERS; |
| |
| if (a_filter == l_filter) { |
| return comp * 4 + a_filter; |
| } else if (a_filter == DAV1D_N_SWITCHABLE_FILTERS) { |
| return comp * 4 + l_filter; |
| } else if (l_filter == DAV1D_N_SWITCHABLE_FILTERS) { |
| return comp * 4 + a_filter; |
| } else { |
| return comp * 4 + DAV1D_N_SWITCHABLE_FILTERS; |
| } |
| } |
| |
| static inline int get_comp_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const int yb4, const int xb4, |
| const int have_top, const int have_left) |
| { |
| if (have_top) { |
| if (have_left) { |
| if (a->comp_type[xb4]) { |
| if (l->comp_type[yb4]) { |
| return 4; |
| } else { |
| // 4U means intra (-1) or bwd (>= 4) |
| return 2 + ((unsigned)l->ref[0][yb4] >= 4U); |
| } |
| } else if (l->comp_type[yb4]) { |
| // 4U means intra (-1) or bwd (>= 4) |
| return 2 + ((unsigned)a->ref[0][xb4] >= 4U); |
| } else { |
| return (l->ref[0][yb4] >= 4) ^ (a->ref[0][xb4] >= 4); |
| } |
| } else { |
| return a->comp_type[xb4] ? 3 : a->ref[0][xb4] >= 4; |
| } |
| } else if (have_left) { |
| return l->comp_type[yb4] ? 3 : l->ref[0][yb4] >= 4; |
| } else { |
| return 1; |
| } |
| } |
| |
| static inline int get_comp_dir_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const int yb4, const int xb4, |
| const int have_top, const int have_left) |
| { |
| #define has_uni_comp(edge, off) \ |
| ((edge->ref[0][off] < 4) == (edge->ref[1][off] < 4)) |
| |
| if (have_top && have_left) { |
| const int a_intra = a->intra[xb4], l_intra = l->intra[yb4]; |
| |
| if (a_intra && l_intra) return 2; |
| if (a_intra || l_intra) { |
| const BlockContext *const edge = a_intra ? l : a; |
| const int off = a_intra ? yb4 : xb4; |
| |
| if (edge->comp_type[off] == COMP_INTER_NONE) return 2; |
| return 1 + 2 * has_uni_comp(edge, off); |
| } |
| |
| const int a_comp = a->comp_type[xb4] != COMP_INTER_NONE; |
| const int l_comp = l->comp_type[yb4] != COMP_INTER_NONE; |
| const int a_ref0 = a->ref[0][xb4], l_ref0 = l->ref[0][yb4]; |
| |
| if (!a_comp && !l_comp) { |
| return 1 + 2 * ((a_ref0 >= 4) == (l_ref0 >= 4)); |
| } else if (!a_comp || !l_comp) { |
| const BlockContext *const edge = a_comp ? a : l; |
| const int off = a_comp ? xb4 : yb4; |
| |
| if (!has_uni_comp(edge, off)) return 1; |
| return 3 + ((a_ref0 >= 4) == (l_ref0 >= 4)); |
| } else { |
| const int a_uni = has_uni_comp(a, xb4), l_uni = has_uni_comp(l, yb4); |
| |
| if (!a_uni && !l_uni) return 0; |
| if (!a_uni || !l_uni) return 2; |
| return 3 + ((a_ref0 == 4) == (l_ref0 == 4)); |
| } |
| } else if (have_top || have_left) { |
| const BlockContext *const edge = have_left ? l : a; |
| const int off = have_left ? yb4 : xb4; |
| |
| if (edge->intra[off]) return 2; |
| if (edge->comp_type[off] == COMP_INTER_NONE) return 2; |
| return 4 * has_uni_comp(edge, off); |
| } else { |
| return 2; |
| } |
| } |
| |
| static inline int get_poc_diff(const int order_hint_n_bits, |
| const int poc0, const int poc1) |
| { |
| if (!order_hint_n_bits) return 0; |
| const int mask = 1 << (order_hint_n_bits - 1); |
| const int diff = poc0 - poc1; |
| return (diff & (mask - 1)) - (diff & mask); |
| } |
| |
| static inline int get_jnt_comp_ctx(const int order_hint_n_bits, |
| const unsigned poc, const unsigned ref0poc, |
| const unsigned ref1poc, |
| const BlockContext *const a, |
| const BlockContext *const l, |
| const int yb4, const int xb4) |
| { |
| const unsigned d0 = abs(get_poc_diff(order_hint_n_bits, ref0poc, poc)); |
| const unsigned d1 = abs(get_poc_diff(order_hint_n_bits, poc, ref1poc)); |
| const int offset = d0 == d1; |
| const int a_ctx = a->comp_type[xb4] >= COMP_INTER_AVG || |
| a->ref[0][xb4] == 6; |
| const int l_ctx = l->comp_type[yb4] >= COMP_INTER_AVG || |
| l->ref[0][yb4] == 6; |
| |
| return 3 * offset + a_ctx + l_ctx; |
| } |
| |
| static inline int get_mask_comp_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const int yb4, const int xb4) |
| { |
| const int a_ctx = a->comp_type[xb4] >= COMP_INTER_SEG ? 1 : |
| a->ref[0][xb4] == 6 ? 3 : 0; |
| const int l_ctx = l->comp_type[yb4] >= COMP_INTER_SEG ? 1 : |
| l->ref[0][yb4] == 6 ? 3 : 0; |
| |
| return imin(a_ctx + l_ctx, 5); |
| } |
| |
| #define av1_get_ref_2_ctx av1_get_bwd_ref_ctx |
| #define av1_get_ref_3_ctx av1_get_fwd_ref_ctx |
| #define av1_get_ref_4_ctx av1_get_fwd_ref_1_ctx |
| #define av1_get_ref_5_ctx av1_get_fwd_ref_2_ctx |
| #define av1_get_ref_6_ctx av1_get_bwd_ref_1_ctx |
| #define av1_get_uni_p_ctx av1_get_ref_ctx |
| #define av1_get_uni_p2_ctx av1_get_fwd_ref_2_ctx |
| |
| static inline int av1_get_ref_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const int yb4, const int xb4, |
| int have_top, int have_left) |
| { |
| int cnt[2] = { 0 }; |
| |
| if (have_top && !a->intra[xb4]) { |
| cnt[a->ref[0][xb4] >= 4]++; |
| if (a->comp_type[xb4]) cnt[a->ref[1][xb4] >= 4]++; |
| } |
| |
| if (have_left && !l->intra[yb4]) { |
| cnt[l->ref[0][yb4] >= 4]++; |
| if (l->comp_type[yb4]) cnt[l->ref[1][yb4] >= 4]++; |
| } |
| |
| return cnt[0] == cnt[1] ? 1 : cnt[0] < cnt[1] ? 0 : 2; |
| } |
| |
| static inline int av1_get_fwd_ref_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const int yb4, const int xb4, |
| const int have_top, const int have_left) |
| { |
| int cnt[4] = { 0 }; |
| |
| if (have_top && !a->intra[xb4]) { |
| if (a->ref[0][xb4] < 4) cnt[a->ref[0][xb4]]++; |
| if (a->comp_type[xb4] && a->ref[1][xb4] < 4) cnt[a->ref[1][xb4]]++; |
| } |
| |
| if (have_left && !l->intra[yb4]) { |
| if (l->ref[0][yb4] < 4) cnt[l->ref[0][yb4]]++; |
| if (l->comp_type[yb4] && l->ref[1][yb4] < 4) cnt[l->ref[1][yb4]]++; |
| } |
| |
| cnt[0] += cnt[1]; |
| cnt[2] += cnt[3]; |
| |
| return cnt[0] == cnt[2] ? 1 : cnt[0] < cnt[2] ? 0 : 2; |
| } |
| |
| static inline int av1_get_fwd_ref_1_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const int yb4, const int xb4, |
| const int have_top, const int have_left) |
| { |
| int cnt[2] = { 0 }; |
| |
| if (have_top && !a->intra[xb4]) { |
| if (a->ref[0][xb4] < 2) cnt[a->ref[0][xb4]]++; |
| if (a->comp_type[xb4] && a->ref[1][xb4] < 2) cnt[a->ref[1][xb4]]++; |
| } |
| |
| if (have_left && !l->intra[yb4]) { |
| if (l->ref[0][yb4] < 2) cnt[l->ref[0][yb4]]++; |
| if (l->comp_type[yb4] && l->ref[1][yb4] < 2) cnt[l->ref[1][yb4]]++; |
| } |
| |
| return cnt[0] == cnt[1] ? 1 : cnt[0] < cnt[1] ? 0 : 2; |
| } |
| |
| static inline int av1_get_fwd_ref_2_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const int yb4, const int xb4, |
| const int have_top, const int have_left) |
| { |
| int cnt[2] = { 0 }; |
| |
| if (have_top && !a->intra[xb4]) { |
| if ((a->ref[0][xb4] ^ 2U) < 2) cnt[a->ref[0][xb4] - 2]++; |
| if (a->comp_type[xb4] && (a->ref[1][xb4] ^ 2U) < 2) cnt[a->ref[1][xb4] - 2]++; |
| } |
| |
| if (have_left && !l->intra[yb4]) { |
| if ((l->ref[0][yb4] ^ 2U) < 2) cnt[l->ref[0][yb4] - 2]++; |
| if (l->comp_type[yb4] && (l->ref[1][yb4] ^ 2U) < 2) cnt[l->ref[1][yb4] - 2]++; |
| } |
| |
| return cnt[0] == cnt[1] ? 1 : cnt[0] < cnt[1] ? 0 : 2; |
| } |
| |
| static inline int av1_get_bwd_ref_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const int yb4, const int xb4, |
| const int have_top, const int have_left) |
| { |
| int cnt[3] = { 0 }; |
| |
| if (have_top && !a->intra[xb4]) { |
| if (a->ref[0][xb4] >= 4) cnt[a->ref[0][xb4] - 4]++; |
| if (a->comp_type[xb4] && a->ref[1][xb4] >= 4) cnt[a->ref[1][xb4] - 4]++; |
| } |
| |
| if (have_left && !l->intra[yb4]) { |
| if (l->ref[0][yb4] >= 4) cnt[l->ref[0][yb4] - 4]++; |
| if (l->comp_type[yb4] && l->ref[1][yb4] >= 4) cnt[l->ref[1][yb4] - 4]++; |
| } |
| |
| cnt[1] += cnt[0]; |
| |
| return cnt[2] == cnt[1] ? 1 : cnt[1] < cnt[2] ? 0 : 2; |
| } |
| |
| static inline int av1_get_bwd_ref_1_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const int yb4, const int xb4, |
| const int have_top, const int have_left) |
| { |
| int cnt[3] = { 0 }; |
| |
| if (have_top && !a->intra[xb4]) { |
| if (a->ref[0][xb4] >= 4) cnt[a->ref[0][xb4] - 4]++; |
| if (a->comp_type[xb4] && a->ref[1][xb4] >= 4) cnt[a->ref[1][xb4] - 4]++; |
| } |
| |
| if (have_left && !l->intra[yb4]) { |
| if (l->ref[0][yb4] >= 4) cnt[l->ref[0][yb4] - 4]++; |
| if (l->comp_type[yb4] && l->ref[1][yb4] >= 4) cnt[l->ref[1][yb4] - 4]++; |
| } |
| |
| return cnt[0] == cnt[1] ? 1 : cnt[0] < cnt[1] ? 0 : 2; |
| } |
| |
| static inline int av1_get_uni_p1_ctx(const BlockContext *const a, |
| const BlockContext *const l, |
| const int yb4, const int xb4, |
| const int have_top, const int have_left) |
| { |
| int cnt[3] = { 0 }; |
| |
| if (have_top && !a->intra[xb4]) { |
| if (a->ref[0][xb4] - 1U < 3) cnt[a->ref[0][xb4] - 1]++; |
| if (a->comp_type[xb4] && a->ref[1][xb4] - 1U < 3) cnt[a->ref[1][xb4] - 1]++; |
| } |
| |
| if (have_left && !l->intra[yb4]) { |
| if (l->ref[0][yb4] - 1U < 3) cnt[l->ref[0][yb4] - 1]++; |
| if (l->comp_type[yb4] && l->ref[1][yb4] - 1U < 3) cnt[l->ref[1][yb4] - 1]++; |
| } |
| |
| cnt[1] += cnt[2]; |
| |
| return cnt[0] == cnt[1] ? 1 : cnt[0] < cnt[1] ? 0 : 2; |
| } |
| |
| static inline int get_drl_context(const candidate_mv *const ref_mv_stack, |
| const int ref_idx) |
| { |
| if (ref_mv_stack[ref_idx].weight >= 640) |
| return ref_mv_stack[ref_idx + 1].weight < 640; |
| |
| return ref_mv_stack[ref_idx + 1].weight < 640 ? 2 : 0; |
| } |
| |
| static inline unsigned get_cur_frame_segid(const int by, const int bx, |
| const int have_top, |
| const int have_left, |
| int *const seg_ctx, |
| const uint8_t *cur_seg_map, |
| const ptrdiff_t stride) |
| { |
| cur_seg_map += bx + by * stride; |
| if (have_left && have_top) { |
| const int l = cur_seg_map[-1]; |
| const int a = cur_seg_map[-stride]; |
| const int al = cur_seg_map[-(stride + 1)]; |
| |
| if (l == a && al == l) *seg_ctx = 2; |
| else if (l == a || al == l || a == al) *seg_ctx = 1; |
| else *seg_ctx = 0; |
| return a == al ? a : l; |
| } else { |
| *seg_ctx = 0; |
| return have_left ? cur_seg_map[-1] : have_top ? cur_seg_map[-stride] : 0; |
| } |
| } |
| |
| static inline mv get_gmv_2d(const Dav1dWarpedMotionParams *const gmv, |
| const int bx4, const int by4, |
| const int bw4, const int bh4, |
| const Dav1dFrameHeader *const hdr) |
| { |
| switch (gmv->type) { |
| case DAV1D_WM_TYPE_ROT_ZOOM: |
| assert(gmv->matrix[5] == gmv->matrix[2]); |
| assert(gmv->matrix[4] == -gmv->matrix[3]); |
| // fall-through |
| default: |
| case DAV1D_WM_TYPE_AFFINE: { |
| const int x = bx4 * 4 + bw4 * 2 - 1; |
| const int y = by4 * 4 + bh4 * 2 - 1; |
| const int xc = (gmv->matrix[2] - (1 << 16)) * x + |
| gmv->matrix[3] * y + gmv->matrix[0]; |
| const int yc = (gmv->matrix[5] - (1 << 16)) * y + |
| gmv->matrix[4] * x + gmv->matrix[1]; |
| const int shift = 16 - (3 - !hdr->hp); |
| const int round = (1 << shift) >> 1; |
| return (mv) { |
| .y = apply_sign(((abs(yc) + round) >> shift) << !hdr->hp, yc), |
| .x = apply_sign(((abs(xc) + round) >> shift) << !hdr->hp, xc), |
| }; |
| } |
| case DAV1D_WM_TYPE_TRANSLATION: |
| return (mv) { |
| .y = gmv->matrix[0] >> 13, |
| .x = gmv->matrix[1] >> 13, |
| }; |
| case DAV1D_WM_TYPE_IDENTITY: |
| return (mv) { .x = 0, .y = 0 }; |
| } |
| } |
| |
| #endif /* DAV1D_SRC_ENV_H */ |
