1137 строки
36 KiB
C
1137 строки
36 KiB
C
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include <assert.h>
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#include <math.h>
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#include "./aom_config.h"
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#include "./aom_dsp_rtcd.h"
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#include "aom_dsp/aom_dsp_common.h"
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#include "aom_mem/aom_mem.h"
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#include "aom_ports/bitops.h"
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#define DST(x, y) dst[(x) + (y)*stride]
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#define AVG3(a, b, c) (((a) + 2 * (b) + (c) + 2) >> 2)
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#define AVG2(a, b) (((a) + (b) + 1) >> 1)
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static INLINE void d207e_predictor(uint8_t *dst, ptrdiff_t stride, int bw,
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int bh, const uint8_t *above,
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const uint8_t *left) {
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int r, c;
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(void)above;
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for (r = 0; r < bh; ++r) {
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for (c = 0; c < bw; ++c) {
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dst[c] = c & 1 ? AVG3(left[(c >> 1) + r], left[(c >> 1) + r + 1],
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left[(c >> 1) + r + 2])
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: AVG2(left[(c >> 1) + r], left[(c >> 1) + r + 1]);
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}
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dst += stride;
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}
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}
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static INLINE void d63e_predictor(uint8_t *dst, ptrdiff_t stride, int bw,
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int bh, const uint8_t *above,
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const uint8_t *left) {
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int r, c;
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(void)left;
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for (r = 0; r < bh; ++r) {
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for (c = 0; c < bw; ++c) {
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dst[c] = r & 1 ? AVG3(above[(r >> 1) + c], above[(r >> 1) + c + 1],
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above[(r >> 1) + c + 2])
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: AVG2(above[(r >> 1) + c], above[(r >> 1) + c + 1]);
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}
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dst += stride;
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}
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}
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static INLINE void d45e_predictor(uint8_t *dst, ptrdiff_t stride, int bw,
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int bh, const uint8_t *above,
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const uint8_t *left) {
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int r, c;
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(void)left;
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for (r = 0; r < bh; ++r) {
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for (c = 0; c < bw; ++c) {
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dst[c] = AVG3(above[r + c], above[r + c + 1],
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above[r + c + 1 + (r + c + 2 < bw + bh)]);
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}
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dst += stride;
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}
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}
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static INLINE void d117_predictor(uint8_t *dst, ptrdiff_t stride, int bw,
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int bh, const uint8_t *above,
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const uint8_t *left) {
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int r, c;
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// first row
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for (c = 0; c < bw; c++) dst[c] = AVG2(above[c - 1], above[c]);
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dst += stride;
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// second row
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dst[0] = AVG3(left[0], above[-1], above[0]);
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for (c = 1; c < bw; c++) dst[c] = AVG3(above[c - 2], above[c - 1], above[c]);
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dst += stride;
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// the rest of first col
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dst[0] = AVG3(above[-1], left[0], left[1]);
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for (r = 3; r < bh; ++r)
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dst[(r - 2) * stride] = AVG3(left[r - 3], left[r - 2], left[r - 1]);
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// the rest of the block
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for (r = 2; r < bh; ++r) {
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for (c = 1; c < bw; c++) dst[c] = dst[-2 * stride + c - 1];
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dst += stride;
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}
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}
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static INLINE void d135_predictor(uint8_t *dst, ptrdiff_t stride, int bw,
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int bh, const uint8_t *above,
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const uint8_t *left) {
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int i;
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#if CONFIG_TX64X64
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#if defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ > 7
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// silence a spurious -Warray-bounds warning, possibly related to:
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// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56273
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uint8_t border[133];
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#else
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uint8_t border[64 + 64 - 1]; // outer border from bottom-left to top-right
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#endif
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#else
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#if defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ > 7
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// silence a spurious -Warray-bounds warning, possibly related to:
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// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56273
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uint8_t border[69];
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#else
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uint8_t border[32 + 32 - 1]; // outer border from bottom-left to top-right
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#endif
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#endif // CONFIG_TX64X64
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// dst(bh, bh - 2)[0], i.e., border starting at bottom-left
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for (i = 0; i < bh - 2; ++i) {
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border[i] = AVG3(left[bh - 3 - i], left[bh - 2 - i], left[bh - 1 - i]);
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}
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border[bh - 2] = AVG3(above[-1], left[0], left[1]);
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border[bh - 1] = AVG3(left[0], above[-1], above[0]);
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border[bh - 0] = AVG3(above[-1], above[0], above[1]);
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// dst[0][2, size), i.e., remaining top border ascending
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for (i = 0; i < bw - 2; ++i) {
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border[bh + 1 + i] = AVG3(above[i], above[i + 1], above[i + 2]);
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}
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for (i = 0; i < bh; ++i) {
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memcpy(dst + i * stride, border + bh - 1 - i, bw);
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}
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}
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static INLINE void d153_predictor(uint8_t *dst, ptrdiff_t stride, int bw,
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int bh, const uint8_t *above,
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const uint8_t *left) {
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int r, c;
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dst[0] = AVG2(above[-1], left[0]);
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for (r = 1; r < bh; r++) dst[r * stride] = AVG2(left[r - 1], left[r]);
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dst++;
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dst[0] = AVG3(left[0], above[-1], above[0]);
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dst[stride] = AVG3(above[-1], left[0], left[1]);
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for (r = 2; r < bh; r++)
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dst[r * stride] = AVG3(left[r - 2], left[r - 1], left[r]);
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dst++;
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for (c = 0; c < bw - 2; c++)
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dst[c] = AVG3(above[c - 1], above[c], above[c + 1]);
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dst += stride;
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for (r = 1; r < bh; ++r) {
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for (c = 0; c < bw - 2; c++) dst[c] = dst[-stride + c - 2];
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dst += stride;
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}
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}
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static INLINE void v_predictor(uint8_t *dst, ptrdiff_t stride, int bw, int bh,
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const uint8_t *above, const uint8_t *left) {
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int r;
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(void)left;
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for (r = 0; r < bh; r++) {
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memcpy(dst, above, bw);
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dst += stride;
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}
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}
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static INLINE void h_predictor(uint8_t *dst, ptrdiff_t stride, int bw, int bh,
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const uint8_t *above, const uint8_t *left) {
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int r;
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(void)above;
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for (r = 0; r < bh; r++) {
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memset(dst, left[r], bw);
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dst += stride;
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}
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}
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#if CONFIG_ALT_INTRA
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static INLINE int abs_diff(int a, int b) { return (a > b) ? a - b : b - a; }
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static INLINE uint16_t paeth_predictor_single(uint16_t left, uint16_t top,
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uint16_t top_left) {
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const int base = top + left - top_left;
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const int p_left = abs_diff(base, left);
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const int p_top = abs_diff(base, top);
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const int p_top_left = abs_diff(base, top_left);
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// Return nearest to base of left, top and top_left.
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return (p_left <= p_top && p_left <= p_top_left)
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? left
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: (p_top <= p_top_left) ? top : top_left;
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}
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static INLINE void paeth_predictor(uint8_t *dst, ptrdiff_t stride, int bw,
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int bh, const uint8_t *above,
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const uint8_t *left) {
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int r, c;
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const uint8_t ytop_left = above[-1];
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for (r = 0; r < bh; r++) {
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for (c = 0; c < bw; c++)
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dst[c] = (uint8_t)paeth_predictor_single(left[r], above[c], ytop_left);
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dst += stride;
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}
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}
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// Weights are quadratic from '1' to '1 / block_size', scaled by
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// 2^sm_weight_log2_scale.
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static const int sm_weight_log2_scale = 8;
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#if CONFIG_TX64X64
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// max(block_size_wide[BLOCK_LARGEST], block_size_high[BLOCK_LARGEST])
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#define MAX_BLOCK_DIM 64
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#else
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#define MAX_BLOCK_DIM 32
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#endif // CONFIG_TX64X64
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static const uint8_t sm_weight_arrays[2 * MAX_BLOCK_DIM] = {
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// Unused, because we always offset by bs, which is at least 2.
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0, 0,
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// bs = 2
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255, 128,
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// bs = 4
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255, 149, 85, 64,
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// bs = 8
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255, 197, 146, 105, 73, 50, 37, 32,
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// bs = 16
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255, 225, 196, 170, 145, 123, 102, 84, 68, 54, 43, 33, 26, 20, 17, 16,
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// bs = 32
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255, 240, 225, 210, 196, 182, 169, 157, 145, 133, 122, 111, 101, 92, 83, 74,
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66, 59, 52, 45, 39, 34, 29, 25, 21, 17, 14, 12, 10, 9, 8, 8,
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#if CONFIG_TX64X64
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// bs = 64
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255, 248, 240, 233, 225, 218, 210, 203, 196, 189, 182, 176, 169, 163, 156,
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150, 144, 138, 133, 127, 121, 116, 111, 106, 101, 96, 91, 86, 82, 77, 73, 69,
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65, 61, 57, 54, 50, 47, 44, 41, 38, 35, 32, 29, 27, 25, 22, 20, 18, 16, 15,
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13, 12, 10, 9, 8, 7, 6, 6, 5, 5, 4, 4, 4,
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#endif // CONFIG_TX64X64
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};
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// Some basic checks on weights for smooth predictor.
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#define sm_weights_sanity_checks(weights_w, weights_h, weights_scale, \
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pred_scale) \
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assert(weights_w[0] < weights_scale); \
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assert(weights_h[0] < weights_scale); \
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assert(weights_scale - weights_w[bw - 1] < weights_scale); \
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assert(weights_scale - weights_h[bh - 1] < weights_scale); \
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assert(pred_scale < 31) // ensures no overflow when calculating predictor.
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#define divide_round(value, bits) (((value) + (1 << ((bits)-1))) >> (bits))
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static INLINE void smooth_predictor(uint8_t *dst, ptrdiff_t stride, int bw,
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int bh, const uint8_t *above,
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const uint8_t *left) {
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const uint8_t below_pred = left[bh - 1]; // estimated by bottom-left pixel
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const uint8_t right_pred = above[bw - 1]; // estimated by top-right pixel
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const uint8_t *const sm_weights_w = sm_weight_arrays + bw;
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const uint8_t *const sm_weights_h = sm_weight_arrays + bh;
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// scale = 2 * 2^sm_weight_log2_scale
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const int log2_scale = 1 + sm_weight_log2_scale;
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const uint16_t scale = (1 << sm_weight_log2_scale);
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sm_weights_sanity_checks(sm_weights_w, sm_weights_h, scale,
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log2_scale + sizeof(*dst));
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int r;
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for (r = 0; r < bh; ++r) {
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int c;
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for (c = 0; c < bw; ++c) {
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const uint8_t pixels[] = { above[c], below_pred, left[r], right_pred };
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const uint8_t weights[] = { sm_weights_h[r], scale - sm_weights_h[r],
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sm_weights_w[c], scale - sm_weights_w[c] };
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uint32_t this_pred = 0;
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int i;
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assert(scale >= sm_weights_h[r] && scale >= sm_weights_w[c]);
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for (i = 0; i < 4; ++i) {
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this_pred += weights[i] * pixels[i];
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}
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dst[c] = clip_pixel(divide_round(this_pred, log2_scale));
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}
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dst += stride;
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}
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}
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#if CONFIG_SMOOTH_HV
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static INLINE void smooth_v_predictor(uint8_t *dst, ptrdiff_t stride, int bw,
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int bh, const uint8_t *above,
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const uint8_t *left) {
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const uint8_t below_pred = left[bh - 1]; // estimated by bottom-left pixel
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const uint8_t *const sm_weights = sm_weight_arrays + bh;
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// scale = 2^sm_weight_log2_scale
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const int log2_scale = sm_weight_log2_scale;
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const uint16_t scale = (1 << sm_weight_log2_scale);
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sm_weights_sanity_checks(sm_weights, sm_weights, scale,
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log2_scale + sizeof(*dst));
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int r;
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for (r = 0; r < bh; r++) {
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int c;
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for (c = 0; c < bw; ++c) {
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const uint8_t pixels[] = { above[c], below_pred };
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const uint8_t weights[] = { sm_weights[r], scale - sm_weights[r] };
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uint32_t this_pred = 0;
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assert(scale >= sm_weights[r]);
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int i;
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for (i = 0; i < 2; ++i) {
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this_pred += weights[i] * pixels[i];
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}
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dst[c] = clip_pixel(divide_round(this_pred, log2_scale));
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}
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dst += stride;
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}
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}
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static INLINE void smooth_h_predictor(uint8_t *dst, ptrdiff_t stride, int bw,
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int bh, const uint8_t *above,
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const uint8_t *left) {
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const uint8_t right_pred = above[bw - 1]; // estimated by top-right pixel
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const uint8_t *const sm_weights = sm_weight_arrays + bw;
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// scale = 2^sm_weight_log2_scale
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const int log2_scale = sm_weight_log2_scale;
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const uint16_t scale = (1 << sm_weight_log2_scale);
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sm_weights_sanity_checks(sm_weights, sm_weights, scale,
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log2_scale + sizeof(*dst));
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int r;
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for (r = 0; r < bh; r++) {
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int c;
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for (c = 0; c < bw; ++c) {
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const uint8_t pixels[] = { left[r], right_pred };
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const uint8_t weights[] = { sm_weights[c], scale - sm_weights[c] };
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uint32_t this_pred = 0;
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assert(scale >= sm_weights[c]);
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int i;
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for (i = 0; i < 2; ++i) {
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this_pred += weights[i] * pixels[i];
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}
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dst[c] = clip_pixel(divide_round(this_pred, log2_scale));
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}
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dst += stride;
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}
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}
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#endif // CONFIG_SMOOTH_HV
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#else
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static INLINE void tm_predictor(uint8_t *dst, ptrdiff_t stride, int bw, int bh,
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const uint8_t *above, const uint8_t *left) {
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int r, c;
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int ytop_left = above[-1];
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for (r = 0; r < bh; r++) {
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for (c = 0; c < bw; c++)
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dst[c] = clip_pixel(left[r] + above[c] - ytop_left);
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dst += stride;
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}
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}
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#endif // CONFIG_ALT_INTRA
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static INLINE void dc_128_predictor(uint8_t *dst, ptrdiff_t stride, int bw,
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int bh, const uint8_t *above,
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const uint8_t *left) {
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int r;
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(void)above;
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(void)left;
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for (r = 0; r < bh; r++) {
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memset(dst, 128, bw);
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dst += stride;
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}
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}
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static INLINE void dc_left_predictor(uint8_t *dst, ptrdiff_t stride, int bw,
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int bh, const uint8_t *above,
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const uint8_t *left) {
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int i, r, expected_dc, sum = 0;
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(void)above;
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for (i = 0; i < bh; i++) sum += left[i];
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expected_dc = (sum + (bh >> 1)) / bh;
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for (r = 0; r < bh; r++) {
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memset(dst, expected_dc, bw);
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dst += stride;
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}
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}
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static INLINE void dc_top_predictor(uint8_t *dst, ptrdiff_t stride, int bw,
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int bh, const uint8_t *above,
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const uint8_t *left) {
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int i, r, expected_dc, sum = 0;
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(void)left;
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for (i = 0; i < bw; i++) sum += above[i];
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expected_dc = (sum + (bw >> 1)) / bw;
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for (r = 0; r < bh; r++) {
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memset(dst, expected_dc, bw);
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dst += stride;
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}
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}
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static INLINE void dc_predictor(uint8_t *dst, ptrdiff_t stride, int bw, int bh,
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const uint8_t *above, const uint8_t *left) {
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int i, r, expected_dc, sum = 0;
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const int count = bw + bh;
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for (i = 0; i < bw; i++) {
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sum += above[i];
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}
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for (i = 0; i < bh; i++) {
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sum += left[i];
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}
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expected_dc = (sum + (count >> 1)) / count;
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for (r = 0; r < bh; r++) {
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memset(dst, expected_dc, bw);
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dst += stride;
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}
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}
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void aom_d45e_predictor_2x2_c(uint8_t *dst, ptrdiff_t stride,
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const uint8_t *above, const uint8_t *left) {
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const int A = above[0];
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const int B = above[1];
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const int C = above[2];
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const int D = above[3];
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(void)stride;
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(void)left;
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DST(0, 0) = AVG3(A, B, C);
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DST(1, 0) = DST(0, 1) = AVG3(B, C, D);
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DST(1, 1) = AVG3(C, D, D);
|
|
}
|
|
|
|
void aom_d117_predictor_2x2_c(uint8_t *dst, ptrdiff_t stride,
|
|
const uint8_t *above, const uint8_t *left) {
|
|
const int I = left[0];
|
|
const int X = above[-1];
|
|
const int A = above[0];
|
|
const int B = above[1];
|
|
DST(0, 0) = AVG2(X, A);
|
|
DST(1, 0) = AVG2(A, B);
|
|
DST(0, 1) = AVG3(I, X, A);
|
|
DST(1, 1) = AVG3(X, A, B);
|
|
}
|
|
|
|
void aom_d135_predictor_2x2_c(uint8_t *dst, ptrdiff_t stride,
|
|
const uint8_t *above, const uint8_t *left) {
|
|
const int I = left[0];
|
|
const int J = left[1];
|
|
const int X = above[-1];
|
|
const int A = above[0];
|
|
const int B = above[1];
|
|
(void)stride;
|
|
DST(0, 1) = AVG3(X, I, J);
|
|
DST(1, 1) = DST(0, 0) = AVG3(A, X, I);
|
|
DST(1, 0) = AVG3(B, A, X);
|
|
}
|
|
|
|
void aom_d153_predictor_2x2_c(uint8_t *dst, ptrdiff_t stride,
|
|
const uint8_t *above, const uint8_t *left) {
|
|
const int I = left[0];
|
|
const int J = left[1];
|
|
const int X = above[-1];
|
|
const int A = above[0];
|
|
|
|
DST(0, 0) = AVG2(I, X);
|
|
DST(0, 1) = AVG2(J, I);
|
|
DST(1, 0) = AVG3(I, X, A);
|
|
DST(1, 1) = AVG3(J, I, X);
|
|
}
|
|
|
|
void aom_d45e_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
|
|
const uint8_t *above, const uint8_t *left) {
|
|
const int A = above[0];
|
|
const int B = above[1];
|
|
const int C = above[2];
|
|
const int D = above[3];
|
|
const int E = above[4];
|
|
const int F = above[5];
|
|
const int G = above[6];
|
|
const int H = above[7];
|
|
(void)stride;
|
|
(void)left;
|
|
DST(0, 0) = AVG3(A, B, C);
|
|
DST(1, 0) = DST(0, 1) = AVG3(B, C, D);
|
|
DST(2, 0) = DST(1, 1) = DST(0, 2) = AVG3(C, D, E);
|
|
DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F);
|
|
DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G);
|
|
DST(3, 2) = DST(2, 3) = AVG3(F, G, H);
|
|
DST(3, 3) = AVG3(G, H, H);
|
|
}
|
|
|
|
void aom_d117_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
|
|
const uint8_t *above, const uint8_t *left) {
|
|
const int I = left[0];
|
|
const int J = left[1];
|
|
const int K = left[2];
|
|
const int X = above[-1];
|
|
const int A = above[0];
|
|
const int B = above[1];
|
|
const int C = above[2];
|
|
const int D = above[3];
|
|
DST(0, 0) = DST(1, 2) = AVG2(X, A);
|
|
DST(1, 0) = DST(2, 2) = AVG2(A, B);
|
|
DST(2, 0) = DST(3, 2) = AVG2(B, C);
|
|
DST(3, 0) = AVG2(C, D);
|
|
|
|
DST(0, 3) = AVG3(K, J, I);
|
|
DST(0, 2) = AVG3(J, I, X);
|
|
DST(0, 1) = DST(1, 3) = AVG3(I, X, A);
|
|
DST(1, 1) = DST(2, 3) = AVG3(X, A, B);
|
|
DST(2, 1) = DST(3, 3) = AVG3(A, B, C);
|
|
DST(3, 1) = AVG3(B, C, D);
|
|
}
|
|
|
|
void aom_d135_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
|
|
const uint8_t *above, const uint8_t *left) {
|
|
const int I = left[0];
|
|
const int J = left[1];
|
|
const int K = left[2];
|
|
const int L = left[3];
|
|
const int X = above[-1];
|
|
const int A = above[0];
|
|
const int B = above[1];
|
|
const int C = above[2];
|
|
const int D = above[3];
|
|
(void)stride;
|
|
DST(0, 3) = AVG3(J, K, L);
|
|
DST(1, 3) = DST(0, 2) = AVG3(I, J, K);
|
|
DST(2, 3) = DST(1, 2) = DST(0, 1) = AVG3(X, I, J);
|
|
DST(3, 3) = DST(2, 2) = DST(1, 1) = DST(0, 0) = AVG3(A, X, I);
|
|
DST(3, 2) = DST(2, 1) = DST(1, 0) = AVG3(B, A, X);
|
|
DST(3, 1) = DST(2, 0) = AVG3(C, B, A);
|
|
DST(3, 0) = AVG3(D, C, B);
|
|
}
|
|
|
|
void aom_d153_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
|
|
const uint8_t *above, const uint8_t *left) {
|
|
const int I = left[0];
|
|
const int J = left[1];
|
|
const int K = left[2];
|
|
const int L = left[3];
|
|
const int X = above[-1];
|
|
const int A = above[0];
|
|
const int B = above[1];
|
|
const int C = above[2];
|
|
|
|
DST(0, 0) = DST(2, 1) = AVG2(I, X);
|
|
DST(0, 1) = DST(2, 2) = AVG2(J, I);
|
|
DST(0, 2) = DST(2, 3) = AVG2(K, J);
|
|
DST(0, 3) = AVG2(L, K);
|
|
|
|
DST(3, 0) = AVG3(A, B, C);
|
|
DST(2, 0) = AVG3(X, A, B);
|
|
DST(1, 0) = DST(3, 1) = AVG3(I, X, A);
|
|
DST(1, 1) = DST(3, 2) = AVG3(J, I, X);
|
|
DST(1, 2) = DST(3, 3) = AVG3(K, J, I);
|
|
DST(1, 3) = AVG3(L, K, J);
|
|
}
|
|
|
|
#if CONFIG_HIGHBITDEPTH
|
|
static INLINE void highbd_d207e_predictor(uint16_t *dst, ptrdiff_t stride,
|
|
int bw, int bh, const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int r, c;
|
|
(void)above;
|
|
(void)bd;
|
|
|
|
for (r = 0; r < bh; ++r) {
|
|
for (c = 0; c < bw; ++c) {
|
|
dst[c] = c & 1 ? AVG3(left[(c >> 1) + r], left[(c >> 1) + r + 1],
|
|
left[(c >> 1) + r + 2])
|
|
: AVG2(left[(c >> 1) + r], left[(c >> 1) + r + 1]);
|
|
}
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
static INLINE void highbd_d63e_predictor(uint16_t *dst, ptrdiff_t stride,
|
|
int bw, int bh, const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int r, c;
|
|
(void)left;
|
|
(void)bd;
|
|
for (r = 0; r < bh; ++r) {
|
|
for (c = 0; c < bw; ++c) {
|
|
dst[c] = r & 1 ? AVG3(above[(r >> 1) + c], above[(r >> 1) + c + 1],
|
|
above[(r >> 1) + c + 2])
|
|
: AVG2(above[(r >> 1) + c], above[(r >> 1) + c + 1]);
|
|
}
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
static INLINE void highbd_d45e_predictor(uint16_t *dst, ptrdiff_t stride,
|
|
int bw, int bh, const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int r, c;
|
|
(void)left;
|
|
(void)bd;
|
|
for (r = 0; r < bh; ++r) {
|
|
for (c = 0; c < bw; ++c) {
|
|
dst[c] = AVG3(above[r + c], above[r + c + 1],
|
|
above[r + c + 1 + (r + c + 2 < bw + bh)]);
|
|
}
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
static INLINE void highbd_d117_predictor(uint16_t *dst, ptrdiff_t stride,
|
|
int bw, int bh, const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int r, c;
|
|
(void)bd;
|
|
|
|
// first row
|
|
for (c = 0; c < bw; c++) dst[c] = AVG2(above[c - 1], above[c]);
|
|
dst += stride;
|
|
|
|
// second row
|
|
dst[0] = AVG3(left[0], above[-1], above[0]);
|
|
for (c = 1; c < bw; c++) dst[c] = AVG3(above[c - 2], above[c - 1], above[c]);
|
|
dst += stride;
|
|
|
|
// the rest of first col
|
|
dst[0] = AVG3(above[-1], left[0], left[1]);
|
|
for (r = 3; r < bh; ++r)
|
|
dst[(r - 2) * stride] = AVG3(left[r - 3], left[r - 2], left[r - 1]);
|
|
|
|
// the rest of the block
|
|
for (r = 2; r < bh; ++r) {
|
|
for (c = 1; c < bw; c++) dst[c] = dst[-2 * stride + c - 1];
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
static INLINE void highbd_d135_predictor(uint16_t *dst, ptrdiff_t stride,
|
|
int bw, int bh, const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int r, c;
|
|
(void)bd;
|
|
dst[0] = AVG3(left[0], above[-1], above[0]);
|
|
for (c = 1; c < bw; c++) dst[c] = AVG3(above[c - 2], above[c - 1], above[c]);
|
|
|
|
dst[stride] = AVG3(above[-1], left[0], left[1]);
|
|
for (r = 2; r < bh; ++r)
|
|
dst[r * stride] = AVG3(left[r - 2], left[r - 1], left[r]);
|
|
|
|
dst += stride;
|
|
for (r = 1; r < bh; ++r) {
|
|
for (c = 1; c < bw; c++) dst[c] = dst[-stride + c - 1];
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
static INLINE void highbd_d153_predictor(uint16_t *dst, ptrdiff_t stride,
|
|
int bw, int bh, const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int r, c;
|
|
(void)bd;
|
|
dst[0] = AVG2(above[-1], left[0]);
|
|
for (r = 1; r < bh; r++) dst[r * stride] = AVG2(left[r - 1], left[r]);
|
|
dst++;
|
|
|
|
dst[0] = AVG3(left[0], above[-1], above[0]);
|
|
dst[stride] = AVG3(above[-1], left[0], left[1]);
|
|
for (r = 2; r < bh; r++)
|
|
dst[r * stride] = AVG3(left[r - 2], left[r - 1], left[r]);
|
|
dst++;
|
|
|
|
for (c = 0; c < bw - 2; c++)
|
|
dst[c] = AVG3(above[c - 1], above[c], above[c + 1]);
|
|
dst += stride;
|
|
|
|
for (r = 1; r < bh; ++r) {
|
|
for (c = 0; c < bw - 2; c++) dst[c] = dst[-stride + c - 2];
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
static INLINE void highbd_v_predictor(uint16_t *dst, ptrdiff_t stride, int bw,
|
|
int bh, const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int r;
|
|
(void)left;
|
|
(void)bd;
|
|
for (r = 0; r < bh; r++) {
|
|
memcpy(dst, above, bw * sizeof(uint16_t));
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
static INLINE void highbd_h_predictor(uint16_t *dst, ptrdiff_t stride, int bw,
|
|
int bh, const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int r;
|
|
(void)above;
|
|
(void)bd;
|
|
for (r = 0; r < bh; r++) {
|
|
aom_memset16(dst, left[r], bw);
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
void aom_highbd_d207_predictor_2x2_c(uint16_t *dst, ptrdiff_t stride,
|
|
const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
const int I = left[0];
|
|
const int J = left[1];
|
|
const int K = left[2];
|
|
const int L = left[3];
|
|
(void)above;
|
|
(void)bd;
|
|
DST(0, 0) = AVG2(I, J);
|
|
DST(0, 1) = AVG2(J, K);
|
|
DST(1, 0) = AVG3(I, J, K);
|
|
DST(1, 1) = AVG3(J, K, L);
|
|
}
|
|
|
|
void aom_highbd_d63_predictor_2x2_c(uint16_t *dst, ptrdiff_t stride,
|
|
const uint16_t *above, const uint16_t *left,
|
|
int bd) {
|
|
const int A = above[0];
|
|
const int B = above[1];
|
|
const int C = above[2];
|
|
const int D = above[3];
|
|
(void)left;
|
|
(void)bd;
|
|
DST(0, 0) = AVG2(A, B);
|
|
DST(1, 0) = AVG2(B, C);
|
|
DST(0, 1) = AVG3(A, B, C);
|
|
DST(1, 1) = AVG3(B, C, D);
|
|
}
|
|
|
|
void aom_highbd_d45e_predictor_2x2_c(uint16_t *dst, ptrdiff_t stride,
|
|
const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
const int A = above[0];
|
|
const int B = above[1];
|
|
const int C = above[2];
|
|
const int D = above[3];
|
|
(void)stride;
|
|
(void)left;
|
|
(void)bd;
|
|
DST(0, 0) = AVG3(A, B, C);
|
|
DST(1, 0) = DST(0, 1) = AVG3(B, C, D);
|
|
DST(1, 1) = AVG3(C, D, D);
|
|
}
|
|
|
|
void aom_highbd_d117_predictor_2x2_c(uint16_t *dst, ptrdiff_t stride,
|
|
const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
const int I = left[0];
|
|
const int X = above[-1];
|
|
const int A = above[0];
|
|
const int B = above[1];
|
|
(void)bd;
|
|
DST(0, 0) = AVG2(X, A);
|
|
DST(1, 0) = AVG2(A, B);
|
|
DST(0, 1) = AVG3(I, X, A);
|
|
DST(1, 1) = AVG3(X, A, B);
|
|
}
|
|
|
|
void aom_highbd_d135_predictor_2x2_c(uint16_t *dst, ptrdiff_t stride,
|
|
const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
const int I = left[0];
|
|
const int J = left[1];
|
|
const int X = above[-1];
|
|
const int A = above[0];
|
|
const int B = above[1];
|
|
(void)bd;
|
|
DST(0, 1) = AVG3(X, I, J);
|
|
DST(1, 1) = DST(0, 0) = AVG3(A, X, I);
|
|
DST(1, 0) = AVG3(B, A, X);
|
|
}
|
|
|
|
void aom_highbd_d153_predictor_2x2_c(uint16_t *dst, ptrdiff_t stride,
|
|
const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
const int I = left[0];
|
|
const int J = left[1];
|
|
const int X = above[-1];
|
|
const int A = above[0];
|
|
(void)bd;
|
|
DST(0, 0) = AVG2(I, X);
|
|
DST(0, 1) = AVG2(J, I);
|
|
DST(1, 0) = AVG3(I, X, A);
|
|
DST(1, 1) = AVG3(J, I, X);
|
|
}
|
|
|
|
#if CONFIG_ALT_INTRA
|
|
static INLINE void highbd_paeth_predictor(uint16_t *dst, ptrdiff_t stride,
|
|
int bw, int bh, const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int r, c;
|
|
const uint16_t ytop_left = above[-1];
|
|
(void)bd;
|
|
|
|
for (r = 0; r < bh; r++) {
|
|
for (c = 0; c < bw; c++)
|
|
dst[c] = paeth_predictor_single(left[r], above[c], ytop_left);
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
static INLINE void highbd_smooth_predictor(uint16_t *dst, ptrdiff_t stride,
|
|
int bw, int bh,
|
|
const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
const uint16_t below_pred = left[bh - 1]; // estimated by bottom-left pixel
|
|
const uint16_t right_pred = above[bw - 1]; // estimated by top-right pixel
|
|
const uint8_t *const sm_weights_w = sm_weight_arrays + bw;
|
|
const uint8_t *const sm_weights_h = sm_weight_arrays + bh;
|
|
// scale = 2 * 2^sm_weight_log2_scale
|
|
const int log2_scale = 1 + sm_weight_log2_scale;
|
|
const uint16_t scale = (1 << sm_weight_log2_scale);
|
|
sm_weights_sanity_checks(sm_weights_w, sm_weights_h, scale,
|
|
log2_scale + sizeof(*dst));
|
|
int r;
|
|
for (r = 0; r < bh; ++r) {
|
|
int c;
|
|
for (c = 0; c < bw; ++c) {
|
|
const uint16_t pixels[] = { above[c], below_pred, left[r], right_pred };
|
|
const uint8_t weights[] = { sm_weights_h[r], scale - sm_weights_h[r],
|
|
sm_weights_w[c], scale - sm_weights_w[c] };
|
|
uint32_t this_pred = 0;
|
|
int i;
|
|
assert(scale >= sm_weights_h[r] && scale >= sm_weights_w[c]);
|
|
for (i = 0; i < 4; ++i) {
|
|
this_pred += weights[i] * pixels[i];
|
|
}
|
|
dst[c] = clip_pixel_highbd(divide_round(this_pred, log2_scale), bd);
|
|
}
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
#if CONFIG_SMOOTH_HV
|
|
static INLINE void highbd_smooth_v_predictor(uint16_t *dst, ptrdiff_t stride,
|
|
int bw, int bh,
|
|
const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
const uint16_t below_pred = left[bh - 1]; // estimated by bottom-left pixel
|
|
const uint8_t *const sm_weights = sm_weight_arrays + bh;
|
|
// scale = 2^sm_weight_log2_scale
|
|
const int log2_scale = sm_weight_log2_scale;
|
|
const uint16_t scale = (1 << sm_weight_log2_scale);
|
|
sm_weights_sanity_checks(sm_weights, sm_weights, scale,
|
|
log2_scale + sizeof(*dst));
|
|
|
|
int r;
|
|
for (r = 0; r < bh; r++) {
|
|
int c;
|
|
for (c = 0; c < bw; ++c) {
|
|
const uint16_t pixels[] = { above[c], below_pred };
|
|
const uint8_t weights[] = { sm_weights[r], scale - sm_weights[r] };
|
|
uint32_t this_pred = 0;
|
|
assert(scale >= sm_weights[r]);
|
|
int i;
|
|
for (i = 0; i < 2; ++i) {
|
|
this_pred += weights[i] * pixels[i];
|
|
}
|
|
dst[c] = clip_pixel_highbd(divide_round(this_pred, log2_scale), bd);
|
|
}
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
static INLINE void highbd_smooth_h_predictor(uint16_t *dst, ptrdiff_t stride,
|
|
int bw, int bh,
|
|
const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
const uint16_t right_pred = above[bw - 1]; // estimated by top-right pixel
|
|
const uint8_t *const sm_weights = sm_weight_arrays + bw;
|
|
// scale = 2^sm_weight_log2_scale
|
|
const int log2_scale = sm_weight_log2_scale;
|
|
const uint16_t scale = (1 << sm_weight_log2_scale);
|
|
sm_weights_sanity_checks(sm_weights, sm_weights, scale,
|
|
log2_scale + sizeof(*dst));
|
|
|
|
int r;
|
|
for (r = 0; r < bh; r++) {
|
|
int c;
|
|
for (c = 0; c < bw; ++c) {
|
|
const uint16_t pixels[] = { left[r], right_pred };
|
|
const uint8_t weights[] = { sm_weights[c], scale - sm_weights[c] };
|
|
uint32_t this_pred = 0;
|
|
assert(scale >= sm_weights[c]);
|
|
int i;
|
|
for (i = 0; i < 2; ++i) {
|
|
this_pred += weights[i] * pixels[i];
|
|
}
|
|
dst[c] = clip_pixel_highbd(divide_round(this_pred, log2_scale), bd);
|
|
}
|
|
dst += stride;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#else
|
|
static INLINE void highbd_tm_predictor(uint16_t *dst, ptrdiff_t stride, int bw,
|
|
int bh, const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int r, c;
|
|
int ytop_left = above[-1];
|
|
(void)bd;
|
|
|
|
for (r = 0; r < bh; r++) {
|
|
for (c = 0; c < bw; c++)
|
|
dst[c] = clip_pixel_highbd(left[r] + above[c] - ytop_left, bd);
|
|
dst += stride;
|
|
}
|
|
}
|
|
#endif // CONFIG_ALT_INTRA
|
|
|
|
static INLINE void highbd_dc_128_predictor(uint16_t *dst, ptrdiff_t stride,
|
|
int bw, int bh,
|
|
const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int r;
|
|
(void)above;
|
|
(void)left;
|
|
|
|
for (r = 0; r < bh; r++) {
|
|
aom_memset16(dst, 128 << (bd - 8), bw);
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
static INLINE void highbd_dc_left_predictor(uint16_t *dst, ptrdiff_t stride,
|
|
int bw, int bh,
|
|
const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int i, r, expected_dc, sum = 0;
|
|
(void)above;
|
|
(void)bd;
|
|
|
|
for (i = 0; i < bh; i++) sum += left[i];
|
|
expected_dc = (sum + (bh >> 1)) / bh;
|
|
|
|
for (r = 0; r < bh; r++) {
|
|
aom_memset16(dst, expected_dc, bw);
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
static INLINE void highbd_dc_top_predictor(uint16_t *dst, ptrdiff_t stride,
|
|
int bw, int bh,
|
|
const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int i, r, expected_dc, sum = 0;
|
|
(void)left;
|
|
(void)bd;
|
|
|
|
for (i = 0; i < bw; i++) sum += above[i];
|
|
expected_dc = (sum + (bw >> 1)) / bw;
|
|
|
|
for (r = 0; r < bh; r++) {
|
|
aom_memset16(dst, expected_dc, bw);
|
|
dst += stride;
|
|
}
|
|
}
|
|
|
|
static INLINE void highbd_dc_predictor(uint16_t *dst, ptrdiff_t stride, int bw,
|
|
int bh, const uint16_t *above,
|
|
const uint16_t *left, int bd) {
|
|
int i, r, expected_dc, sum = 0;
|
|
const int count = bw + bh;
|
|
(void)bd;
|
|
|
|
for (i = 0; i < bw; i++) {
|
|
sum += above[i];
|
|
}
|
|
for (i = 0; i < bh; i++) {
|
|
sum += left[i];
|
|
}
|
|
|
|
expected_dc = (sum + (count >> 1)) / count;
|
|
|
|
for (r = 0; r < bh; r++) {
|
|
aom_memset16(dst, expected_dc, bw);
|
|
dst += stride;
|
|
}
|
|
}
|
|
#endif // CONFIG_HIGHBITDEPTH
|
|
|
|
// This serves as a wrapper function, so that all the prediction functions
|
|
// can be unified and accessed as a pointer array. Note that the boundary
|
|
// above and left are not necessarily used all the time.
|
|
#define intra_pred_sized(type, width, height) \
|
|
void aom_##type##_predictor_##width##x##height##_c( \
|
|
uint8_t *dst, ptrdiff_t stride, const uint8_t *above, \
|
|
const uint8_t *left) { \
|
|
type##_predictor(dst, stride, width, height, above, left); \
|
|
}
|
|
|
|
#if CONFIG_HIGHBITDEPTH
|
|
#define intra_pred_highbd_sized(type, width, height) \
|
|
void aom_highbd_##type##_predictor_##width##x##height##_c( \
|
|
uint16_t *dst, ptrdiff_t stride, const uint16_t *above, \
|
|
const uint16_t *left, int bd) { \
|
|
highbd_##type##_predictor(dst, stride, width, height, above, left, bd); \
|
|
}
|
|
|
|
/* clang-format off */
|
|
#if CONFIG_TX64X64
|
|
#define intra_pred_rectangular(type) \
|
|
intra_pred_sized(type, 4, 8) \
|
|
intra_pred_sized(type, 8, 4) \
|
|
intra_pred_sized(type, 8, 16) \
|
|
intra_pred_sized(type, 16, 8) \
|
|
intra_pred_sized(type, 16, 32) \
|
|
intra_pred_sized(type, 32, 16) \
|
|
intra_pred_highbd_sized(type, 4, 8) \
|
|
intra_pred_highbd_sized(type, 8, 4) \
|
|
intra_pred_highbd_sized(type, 8, 16) \
|
|
intra_pred_highbd_sized(type, 16, 8) \
|
|
intra_pred_highbd_sized(type, 16, 32) \
|
|
intra_pred_highbd_sized(type, 32, 16)
|
|
#define intra_pred_above_4x4(type) \
|
|
intra_pred_sized(type, 8, 8) \
|
|
intra_pred_sized(type, 16, 16) \
|
|
intra_pred_sized(type, 32, 32) \
|
|
intra_pred_sized(type, 64, 64) \
|
|
intra_pred_highbd_sized(type, 4, 4) \
|
|
intra_pred_highbd_sized(type, 8, 8) \
|
|
intra_pred_highbd_sized(type, 16, 16) \
|
|
intra_pred_highbd_sized(type, 32, 32) \
|
|
intra_pred_highbd_sized(type, 64, 64) \
|
|
intra_pred_rectangular(type)
|
|
#define intra_pred_allsizes(type) \
|
|
intra_pred_sized(type, 2, 2) \
|
|
intra_pred_sized(type, 4, 4) \
|
|
intra_pred_highbd_sized(type, 2, 2) \
|
|
intra_pred_above_4x4(type)
|
|
#else // CONFIG_TX64X64
|
|
#define intra_pred_rectangular(type) \
|
|
intra_pred_sized(type, 4, 8) \
|
|
intra_pred_sized(type, 8, 4) \
|
|
intra_pred_sized(type, 8, 16) \
|
|
intra_pred_sized(type, 16, 8) \
|
|
intra_pred_sized(type, 16, 32) \
|
|
intra_pred_sized(type, 32, 16) \
|
|
intra_pred_highbd_sized(type, 4, 8) \
|
|
intra_pred_highbd_sized(type, 8, 4) \
|
|
intra_pred_highbd_sized(type, 8, 16) \
|
|
intra_pred_highbd_sized(type, 16, 8) \
|
|
intra_pred_highbd_sized(type, 16, 32) \
|
|
intra_pred_highbd_sized(type, 32, 16)
|
|
#define intra_pred_above_4x4(type) \
|
|
intra_pred_sized(type, 8, 8) \
|
|
intra_pred_sized(type, 16, 16) \
|
|
intra_pred_sized(type, 32, 32) \
|
|
intra_pred_highbd_sized(type, 4, 4) \
|
|
intra_pred_highbd_sized(type, 8, 8) \
|
|
intra_pred_highbd_sized(type, 16, 16) \
|
|
intra_pred_highbd_sized(type, 32, 32) \
|
|
intra_pred_rectangular(type)
|
|
#define intra_pred_allsizes(type) \
|
|
intra_pred_sized(type, 2, 2) \
|
|
intra_pred_sized(type, 4, 4) \
|
|
intra_pred_highbd_sized(type, 2, 2) \
|
|
intra_pred_above_4x4(type)
|
|
#endif // CONFIG_TX64X64
|
|
|
|
#else
|
|
|
|
#if CONFIG_TX64X64
|
|
#define intra_pred_rectangular(type) \
|
|
intra_pred_sized(type, 4, 8) \
|
|
intra_pred_sized(type, 8, 4) \
|
|
intra_pred_sized(type, 8, 16) \
|
|
intra_pred_sized(type, 16, 8) \
|
|
intra_pred_sized(type, 16, 32) \
|
|
intra_pred_sized(type, 32, 16)
|
|
#define intra_pred_above_4x4(type) \
|
|
intra_pred_sized(type, 8, 8) \
|
|
intra_pred_sized(type, 16, 16) \
|
|
intra_pred_sized(type, 32, 32) \
|
|
intra_pred_sized(type, 64, 64) \
|
|
intra_pred_rectangular(type)
|
|
#define intra_pred_allsizes(type) \
|
|
intra_pred_sized(type, 2, 2) \
|
|
intra_pred_sized(type, 4, 4) \
|
|
intra_pred_above_4x4(type)
|
|
#else // CONFIG_TX64X64
|
|
#define intra_pred_rectangular(type) \
|
|
intra_pred_sized(type, 4, 8) \
|
|
intra_pred_sized(type, 8, 4) \
|
|
intra_pred_sized(type, 8, 16) \
|
|
intra_pred_sized(type, 16, 8) \
|
|
intra_pred_sized(type, 16, 32) \
|
|
intra_pred_sized(type, 32, 16)
|
|
#define intra_pred_above_4x4(type) \
|
|
intra_pred_sized(type, 8, 8) \
|
|
intra_pred_sized(type, 16, 16) \
|
|
intra_pred_sized(type, 32, 32) \
|
|
intra_pred_rectangular(type)
|
|
#define intra_pred_allsizes(type) \
|
|
intra_pred_sized(type, 2, 2) \
|
|
intra_pred_sized(type, 4, 4) \
|
|
intra_pred_above_4x4(type)
|
|
#endif // CONFIG_TX64X64
|
|
|
|
#endif // CONFIG_HIGHBITDEPTH
|
|
|
|
intra_pred_allsizes(d207e)
|
|
intra_pred_allsizes(d63e)
|
|
intra_pred_above_4x4(d45e)
|
|
intra_pred_above_4x4(d117)
|
|
intra_pred_above_4x4(d135)
|
|
intra_pred_above_4x4(d153)
|
|
intra_pred_allsizes(v)
|
|
intra_pred_allsizes(h)
|
|
#if CONFIG_ALT_INTRA
|
|
intra_pred_allsizes(smooth)
|
|
#if CONFIG_SMOOTH_HV
|
|
intra_pred_allsizes(smooth_v)
|
|
intra_pred_allsizes(smooth_h)
|
|
#endif // CONFIG_SMOOTH_HV
|
|
intra_pred_allsizes(paeth)
|
|
#else
|
|
intra_pred_allsizes(tm)
|
|
#endif // CONFIG_ALT_INTRA
|
|
intra_pred_allsizes(dc_128)
|
|
intra_pred_allsizes(dc_left)
|
|
intra_pred_allsizes(dc_top)
|
|
intra_pred_allsizes(dc)
|
|
/* clang-format on */
|
|
#undef intra_pred_allsizes
|