| /* |
| * Copyright (c) 2015 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include <stdlib.h> |
| |
| #include "./vpx_config.h" |
| #include "./vpx_dsp_rtcd.h" |
| #include "aom_dsp/vpx_dsp_common.h" |
| #include "aom_ports/mem.h" |
| |
| static INLINE int8_t signed_char_clamp(int t) { |
| return (int8_t)clamp(t, -128, 127); |
| } |
| |
| #if CONFIG_VP9_HIGHBITDEPTH |
| static INLINE int16_t signed_char_clamp_high(int t, int bd) { |
| switch (bd) { |
| case 10: return (int16_t)clamp(t, -128 * 4, 128 * 4 - 1); |
| case 12: return (int16_t)clamp(t, -128 * 16, 128 * 16 - 1); |
| case 8: |
| default: return (int16_t)clamp(t, -128, 128 - 1); |
| } |
| } |
| #endif |
| |
| // should we apply any filter at all: 11111111 yes, 00000000 no |
| static INLINE int8_t filter_mask(uint8_t limit, uint8_t blimit, uint8_t p3, |
| uint8_t p2, uint8_t p1, uint8_t p0, uint8_t q0, |
| uint8_t q1, uint8_t q2, uint8_t q3) { |
| int8_t mask = 0; |
| mask |= (abs(p3 - p2) > limit) * -1; |
| mask |= (abs(p2 - p1) > limit) * -1; |
| mask |= (abs(p1 - p0) > limit) * -1; |
| mask |= (abs(q1 - q0) > limit) * -1; |
| mask |= (abs(q2 - q1) > limit) * -1; |
| mask |= (abs(q3 - q2) > limit) * -1; |
| mask |= (abs(p0 - q0) * 2 + abs(p1 - q1) / 2 > blimit) * -1; |
| return ~mask; |
| } |
| |
| static INLINE int8_t flat_mask4(uint8_t thresh, uint8_t p3, uint8_t p2, |
| uint8_t p1, uint8_t p0, uint8_t q0, uint8_t q1, |
| uint8_t q2, uint8_t q3) { |
| int8_t mask = 0; |
| mask |= (abs(p1 - p0) > thresh) * -1; |
| mask |= (abs(q1 - q0) > thresh) * -1; |
| mask |= (abs(p2 - p0) > thresh) * -1; |
| mask |= (abs(q2 - q0) > thresh) * -1; |
| mask |= (abs(p3 - p0) > thresh) * -1; |
| mask |= (abs(q3 - q0) > thresh) * -1; |
| return ~mask; |
| } |
| |
| static INLINE int8_t flat_mask5(uint8_t thresh, uint8_t p4, uint8_t p3, |
| uint8_t p2, uint8_t p1, uint8_t p0, uint8_t q0, |
| uint8_t q1, uint8_t q2, uint8_t q3, |
| uint8_t q4) { |
| int8_t mask = ~flat_mask4(thresh, p3, p2, p1, p0, q0, q1, q2, q3); |
| mask |= (abs(p4 - p0) > thresh) * -1; |
| mask |= (abs(q4 - q0) > thresh) * -1; |
| return ~mask; |
| } |
| |
| // is there high edge variance internal edge: 11111111 yes, 00000000 no |
| static INLINE int8_t hev_mask(uint8_t thresh, uint8_t p1, uint8_t p0, |
| uint8_t q0, uint8_t q1) { |
| int8_t hev = 0; |
| hev |= (abs(p1 - p0) > thresh) * -1; |
| hev |= (abs(q1 - q0) > thresh) * -1; |
| return hev; |
| } |
| |
| static INLINE void filter4(int8_t mask, uint8_t thresh, uint8_t *op1, |
| uint8_t *op0, uint8_t *oq0, uint8_t *oq1) { |
| int8_t filter1, filter2; |
| |
| const int8_t ps1 = (int8_t)*op1 ^ 0x80; |
| const int8_t ps0 = (int8_t)*op0 ^ 0x80; |
| const int8_t qs0 = (int8_t)*oq0 ^ 0x80; |
| const int8_t qs1 = (int8_t)*oq1 ^ 0x80; |
| const uint8_t hev = hev_mask(thresh, *op1, *op0, *oq0, *oq1); |
| |
| // add outer taps if we have high edge variance |
| int8_t filter = signed_char_clamp(ps1 - qs1) & hev; |
| |
| // inner taps |
| filter = signed_char_clamp(filter + 3 * (qs0 - ps0)) & mask; |
| |
| // save bottom 3 bits so that we round one side +4 and the other +3 |
| // if it equals 4 we'll set to adjust by -1 to account for the fact |
| // we'd round 3 the other way |
| filter1 = signed_char_clamp(filter + 4) >> 3; |
| filter2 = signed_char_clamp(filter + 3) >> 3; |
| |
| *oq0 = signed_char_clamp(qs0 - filter1) ^ 0x80; |
| *op0 = signed_char_clamp(ps0 + filter2) ^ 0x80; |
| |
| // outer tap adjustments |
| filter = ROUND_POWER_OF_TWO(filter1, 1) & ~hev; |
| |
| *oq1 = signed_char_clamp(qs1 - filter) ^ 0x80; |
| *op1 = signed_char_clamp(ps1 + filter) ^ 0x80; |
| } |
| |
| void vpx_lpf_horizontal_4_c(uint8_t *s, int p /* pitch */, |
| const uint8_t *blimit, const uint8_t *limit, |
| const uint8_t *thresh) { |
| int i; |
| |
| // loop filter designed to work using chars so that we can make maximum use |
| // of 8 bit simd instructions. |
| for (i = 0; i < 8; ++i) { |
| const uint8_t p3 = s[-4 * p], p2 = s[-3 * p], p1 = s[-2 * p], p0 = s[-p]; |
| const uint8_t q0 = s[0 * p], q1 = s[1 * p], q2 = s[2 * p], q3 = s[3 * p]; |
| const int8_t mask = |
| filter_mask(*limit, *blimit, p3, p2, p1, p0, q0, q1, q2, q3); |
| filter4(mask, *thresh, s - 2 * p, s - 1 * p, s, s + 1 * p); |
| ++s; |
| } |
| } |
| |
| void vpx_lpf_horizontal_4_dual_c(uint8_t *s, int p, const uint8_t *blimit0, |
| const uint8_t *limit0, const uint8_t *thresh0, |
| const uint8_t *blimit1, const uint8_t *limit1, |
| const uint8_t *thresh1) { |
| vpx_lpf_horizontal_4_c(s, p, blimit0, limit0, thresh0); |
| vpx_lpf_horizontal_4_c(s + 8, p, blimit1, limit1, thresh1); |
| } |
| |
| void vpx_lpf_vertical_4_c(uint8_t *s, int pitch, const uint8_t *blimit, |
| const uint8_t *limit, const uint8_t *thresh) { |
| int i; |
| |
| // loop filter designed to work using chars so that we can make maximum use |
| // of 8 bit simd instructions. |
| for (i = 0; i < 8; ++i) { |
| const uint8_t p3 = s[-4], p2 = s[-3], p1 = s[-2], p0 = s[-1]; |
| const uint8_t q0 = s[0], q1 = s[1], q2 = s[2], q3 = s[3]; |
| const int8_t mask = |
| filter_mask(*limit, *blimit, p3, p2, p1, p0, q0, q1, q2, q3); |
| filter4(mask, *thresh, s - 2, s - 1, s, s + 1); |
| s += pitch; |
| } |
| } |
| |
| void vpx_lpf_vertical_4_dual_c(uint8_t *s, int pitch, const uint8_t *blimit0, |
| const uint8_t *limit0, const uint8_t *thresh0, |
| const uint8_t *blimit1, const uint8_t *limit1, |
| const uint8_t *thresh1) { |
| vpx_lpf_vertical_4_c(s, pitch, blimit0, limit0, thresh0); |
| vpx_lpf_vertical_4_c(s + 8 * pitch, pitch, blimit1, limit1, thresh1); |
| } |
| |
| static INLINE void filter8(int8_t mask, uint8_t thresh, uint8_t flat, |
| uint8_t *op3, uint8_t *op2, uint8_t *op1, |
| uint8_t *op0, uint8_t *oq0, uint8_t *oq1, |
| uint8_t *oq2, uint8_t *oq3) { |
| if (flat && mask) { |
| const uint8_t p3 = *op3, p2 = *op2, p1 = *op1, p0 = *op0; |
| const uint8_t q0 = *oq0, q1 = *oq1, q2 = *oq2, q3 = *oq3; |
| |
| // 7-tap filter [1, 1, 1, 2, 1, 1, 1] |
| *op2 = ROUND_POWER_OF_TWO(p3 + p3 + p3 + 2 * p2 + p1 + p0 + q0, 3); |
| *op1 = ROUND_POWER_OF_TWO(p3 + p3 + p2 + 2 * p1 + p0 + q0 + q1, 3); |
| *op0 = ROUND_POWER_OF_TWO(p3 + p2 + p1 + 2 * p0 + q0 + q1 + q2, 3); |
| *oq0 = ROUND_POWER_OF_TWO(p2 + p1 + p0 + 2 * q0 + q1 + q2 + q3, 3); |
| *oq1 = ROUND_POWER_OF_TWO(p1 + p0 + q0 + 2 * q1 + q2 + q3 + q3, 3); |
| *oq2 = ROUND_POWER_OF_TWO(p0 + q0 + q1 + 2 * q2 + q3 + q3 + q3, 3); |
| } else { |
| filter4(mask, thresh, op1, op0, oq0, oq1); |
| } |
| } |
| |
| void vpx_lpf_horizontal_8_c(uint8_t *s, int p, const uint8_t *blimit, |
| const uint8_t *limit, const uint8_t *thresh) { |
| int i; |
| |
| // loop filter designed to work using chars so that we can make maximum use |
| // of 8 bit simd instructions. |
| for (i = 0; i < 8; ++i) { |
| const uint8_t p3 = s[-4 * p], p2 = s[-3 * p], p1 = s[-2 * p], p0 = s[-p]; |
| const uint8_t q0 = s[0 * p], q1 = s[1 * p], q2 = s[2 * p], q3 = s[3 * p]; |
| |
| const int8_t mask = |
| filter_mask(*limit, *blimit, p3, p2, p1, p0, q0, q1, q2, q3); |
| const int8_t flat = flat_mask4(1, p3, p2, p1, p0, q0, q1, q2, q3); |
| filter8(mask, *thresh, flat, s - 4 * p, s - 3 * p, s - 2 * p, s - 1 * p, s, |
| s + 1 * p, s + 2 * p, s + 3 * p); |
| ++s; |
| } |
| } |
| |
| void vpx_lpf_horizontal_8_dual_c(uint8_t *s, int p, const uint8_t *blimit0, |
| const uint8_t *limit0, const uint8_t *thresh0, |
| const uint8_t *blimit1, const uint8_t *limit1, |
| const uint8_t *thresh1) { |
| vpx_lpf_horizontal_8_c(s, p, blimit0, limit0, thresh0); |
| vpx_lpf_horizontal_8_c(s + 8, p, blimit1, limit1, thresh1); |
| } |
| |
| void vpx_lpf_vertical_8_c(uint8_t *s, int pitch, const uint8_t *blimit, |
| const uint8_t *limit, const uint8_t *thresh) { |
| int i; |
| |
| for (i = 0; i < 8; ++i) { |
| const uint8_t p3 = s[-4], p2 = s[-3], p1 = s[-2], p0 = s[-1]; |
| const uint8_t q0 = s[0], q1 = s[1], q2 = s[2], q3 = s[3]; |
| const int8_t mask = |
| filter_mask(*limit, *blimit, p3, p2, p1, p0, q0, q1, q2, q3); |
| const int8_t flat = flat_mask4(1, p3, p2, p1, p0, q0, q1, q2, q3); |
| filter8(mask, *thresh, flat, s - 4, s - 3, s - 2, s - 1, s, s + 1, s + 2, |
| s + 3); |
| s += pitch; |
| } |
| } |
| |
| void vpx_lpf_vertical_8_dual_c(uint8_t *s, int pitch, const uint8_t *blimit0, |
| const uint8_t *limit0, const uint8_t *thresh0, |
| const uint8_t *blimit1, const uint8_t *limit1, |
| const uint8_t *thresh1) { |
| vpx_lpf_vertical_8_c(s, pitch, blimit0, limit0, thresh0); |
| vpx_lpf_vertical_8_c(s + 8 * pitch, pitch, blimit1, limit1, thresh1); |
| } |
| |
| static INLINE void filter16(int8_t mask, uint8_t thresh, uint8_t flat, |
| uint8_t flat2, uint8_t *op7, uint8_t *op6, |
| uint8_t *op5, uint8_t *op4, uint8_t *op3, |
| uint8_t *op2, uint8_t *op1, uint8_t *op0, |
| uint8_t *oq0, uint8_t *oq1, uint8_t *oq2, |
| uint8_t *oq3, uint8_t *oq4, uint8_t *oq5, |
| uint8_t *oq6, uint8_t *oq7) { |
| if (flat2 && flat && mask) { |
| const uint8_t p7 = *op7, p6 = *op6, p5 = *op5, p4 = *op4, p3 = *op3, |
| p2 = *op2, p1 = *op1, p0 = *op0; |
| |
| const uint8_t q0 = *oq0, q1 = *oq1, q2 = *oq2, q3 = *oq3, q4 = *oq4, |
| q5 = *oq5, q6 = *oq6, q7 = *oq7; |
| |
| // 15-tap filter [1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1] |
| *op6 = ROUND_POWER_OF_TWO( |
| p7 * 7 + p6 * 2 + p5 + p4 + p3 + p2 + p1 + p0 + q0, 4); |
| *op5 = ROUND_POWER_OF_TWO( |
| p7 * 6 + p6 + p5 * 2 + p4 + p3 + p2 + p1 + p0 + q0 + q1, 4); |
| *op4 = ROUND_POWER_OF_TWO( |
| p7 * 5 + p6 + p5 + p4 * 2 + p3 + p2 + p1 + p0 + q0 + q1 + q2, 4); |
| *op3 = ROUND_POWER_OF_TWO( |
| p7 * 4 + p6 + p5 + p4 + p3 * 2 + p2 + p1 + p0 + q0 + q1 + q2 + q3, 4); |
| *op2 = ROUND_POWER_OF_TWO( |
| p7 * 3 + p6 + p5 + p4 + p3 + p2 * 2 + p1 + p0 + q0 + q1 + q2 + q3 + q4, |
| 4); |
| *op1 = ROUND_POWER_OF_TWO(p7 * 2 + p6 + p5 + p4 + p3 + p2 + p1 * 2 + p0 + |
| q0 + q1 + q2 + q3 + q4 + q5, |
| 4); |
| *op0 = ROUND_POWER_OF_TWO(p7 + p6 + p5 + p4 + p3 + p2 + p1 + p0 * 2 + q0 + |
| q1 + q2 + q3 + q4 + q5 + q6, |
| 4); |
| *oq0 = ROUND_POWER_OF_TWO(p6 + p5 + p4 + p3 + p2 + p1 + p0 + q0 * 2 + q1 + |
| q2 + q3 + q4 + q5 + q6 + q7, |
| 4); |
| *oq1 = ROUND_POWER_OF_TWO(p5 + p4 + p3 + p2 + p1 + p0 + q0 + q1 * 2 + q2 + |
| q3 + q4 + q5 + q6 + q7 * 2, |
| 4); |
| *oq2 = ROUND_POWER_OF_TWO( |
| p4 + p3 + p2 + p1 + p0 + q0 + q1 + q2 * 2 + q3 + q4 + q5 + q6 + q7 * 3, |
| 4); |
| *oq3 = ROUND_POWER_OF_TWO( |
| p3 + p2 + p1 + p0 + q0 + q1 + q2 + q3 * 2 + q4 + q5 + q6 + q7 * 4, 4); |
| *oq4 = ROUND_POWER_OF_TWO( |
| p2 + p1 + p0 + q0 + q1 + q2 + q3 + q4 * 2 + q5 + q6 + q7 * 5, 4); |
| *oq5 = ROUND_POWER_OF_TWO( |
| p1 + p0 + q0 + q1 + q2 + q3 + q4 + q5 * 2 + q6 + q7 * 6, 4); |
| *oq6 = ROUND_POWER_OF_TWO( |
| p0 + q0 + q1 + q2 + q3 + q4 + q5 + q6 * 2 + q7 * 7, 4); |
| } else { |
| filter8(mask, thresh, flat, op3, op2, op1, op0, oq0, oq1, oq2, oq3); |
| } |
| } |
| |
| static void mb_lpf_horizontal_edge_w(uint8_t *s, int p, const uint8_t *blimit, |
| const uint8_t *limit, |
| const uint8_t *thresh, int count) { |
| int i; |
| |
| // loop filter designed to work using chars so that we can make maximum use |
| // of 8 bit simd instructions. |
| for (i = 0; i < 8 * count; ++i) { |
| const uint8_t p3 = s[-4 * p], p2 = s[-3 * p], p1 = s[-2 * p], p0 = s[-p]; |
| const uint8_t q0 = s[0 * p], q1 = s[1 * p], q2 = s[2 * p], q3 = s[3 * p]; |
| const int8_t mask = |
| filter_mask(*limit, *blimit, p3, p2, p1, p0, q0, q1, q2, q3); |
| const int8_t flat = flat_mask4(1, p3, p2, p1, p0, q0, q1, q2, q3); |
| const int8_t flat2 = |
| flat_mask5(1, s[-8 * p], s[-7 * p], s[-6 * p], s[-5 * p], p0, q0, |
| s[4 * p], s[5 * p], s[6 * p], s[7 * p]); |
| |
| filter16(mask, *thresh, flat, flat2, s - 8 * p, s - 7 * p, s - 6 * p, |
| s - 5 * p, s - 4 * p, s - 3 * p, s - 2 * p, s - 1 * p, s, |
| s + 1 * p, s + 2 * p, s + 3 * p, s + 4 * p, s + 5 * p, s + 6 * p, |
| s + 7 * p); |
| ++s; |
| } |
| } |
| |
| void vpx_lpf_horizontal_edge_8_c(uint8_t *s, int p, const uint8_t *blimit, |
| const uint8_t *limit, const uint8_t *thresh) { |
| mb_lpf_horizontal_edge_w(s, p, blimit, limit, thresh, 1); |
| } |
| |
| void vpx_lpf_horizontal_edge_16_c(uint8_t *s, int p, const uint8_t *blimit, |
| const uint8_t *limit, const uint8_t *thresh) { |
| mb_lpf_horizontal_edge_w(s, p, blimit, limit, thresh, 2); |
| } |
| |
| static void mb_lpf_vertical_edge_w(uint8_t *s, int p, const uint8_t *blimit, |
| const uint8_t *limit, const uint8_t *thresh, |
| int count) { |
| int i; |
| |
| for (i = 0; i < count; ++i) { |
| const uint8_t p3 = s[-4], p2 = s[-3], p1 = s[-2], p0 = s[-1]; |
| const uint8_t q0 = s[0], q1 = s[1], q2 = s[2], q3 = s[3]; |
| const int8_t mask = |
| filter_mask(*limit, *blimit, p3, p2, p1, p0, q0, q1, q2, q3); |
| const int8_t flat = flat_mask4(1, p3, p2, p1, p0, q0, q1, q2, q3); |
| const int8_t flat2 = flat_mask5(1, s[-8], s[-7], s[-6], s[-5], p0, q0, s[4], |
| s[5], s[6], s[7]); |
| |
| filter16(mask, *thresh, flat, flat2, s - 8, s - 7, s - 6, s - 5, s - 4, |
| s - 3, s - 2, s - 1, s, s + 1, s + 2, s + 3, s + 4, s + 5, s + 6, |
| s + 7); |
| s += p; |
| } |
| } |
| |
| void vpx_lpf_vertical_16_c(uint8_t *s, int p, const uint8_t *blimit, |
| const uint8_t *limit, const uint8_t *thresh) { |
| mb_lpf_vertical_edge_w(s, p, blimit, limit, thresh, 8); |
| } |
| |
| void vpx_lpf_vertical_16_dual_c(uint8_t *s, int p, const uint8_t *blimit, |
| const uint8_t *limit, const uint8_t *thresh) { |
| mb_lpf_vertical_edge_w(s, p, blimit, limit, thresh, 16); |
| } |
| |
| #if CONFIG_VP9_HIGHBITDEPTH |
| // Should we apply any filter at all: 11111111 yes, 00000000 no ? |
| static INLINE int8_t highbd_filter_mask(uint8_t limit, uint8_t blimit, |
| uint16_t p3, uint16_t p2, uint16_t p1, |
| uint16_t p0, uint16_t q0, uint16_t q1, |
| uint16_t q2, uint16_t q3, int bd) { |
| int8_t mask = 0; |
| int16_t limit16 = (uint16_t)limit << (bd - 8); |
| int16_t blimit16 = (uint16_t)blimit << (bd - 8); |
| mask |= (abs(p3 - p2) > limit16) * -1; |
| mask |= (abs(p2 - p1) > limit16) * -1; |
| mask |= (abs(p1 - p0) > limit16) * -1; |
| mask |= (abs(q1 - q0) > limit16) * -1; |
| mask |= (abs(q2 - q1) > limit16) * -1; |
| mask |= (abs(q3 - q2) > limit16) * -1; |
| mask |= (abs(p0 - q0) * 2 + abs(p1 - q1) / 2 > blimit16) * -1; |
| return ~mask; |
| } |
| |
| static INLINE int8_t highbd_flat_mask4(uint8_t thresh, uint16_t p3, uint16_t p2, |
| uint16_t p1, uint16_t p0, uint16_t q0, |
| uint16_t q1, uint16_t q2, uint16_t q3, |
| int bd) { |
| int8_t mask = 0; |
| int16_t thresh16 = (uint16_t)thresh << (bd - 8); |
| mask |= (abs(p1 - p0) > thresh16) * -1; |
| mask |= (abs(q1 - q0) > thresh16) * -1; |
| mask |= (abs(p2 - p0) > thresh16) * -1; |
| mask |= (abs(q2 - q0) > thresh16) * -1; |
| mask |= (abs(p3 - p0) > thresh16) * -1; |
| mask |= (abs(q3 - q0) > thresh16) * -1; |
| return ~mask; |
| } |
| |
| static INLINE int8_t highbd_flat_mask5(uint8_t thresh, uint16_t p4, uint16_t p3, |
| uint16_t p2, uint16_t p1, uint16_t p0, |
| uint16_t q0, uint16_t q1, uint16_t q2, |
| uint16_t q3, uint16_t q4, int bd) { |
| int8_t mask = ~highbd_flat_mask4(thresh, p3, p2, p1, p0, q0, q1, q2, q3, bd); |
| int16_t thresh16 = (uint16_t)thresh << (bd - 8); |
| mask |= (abs(p4 - p0) > thresh16) * -1; |
| mask |= (abs(q4 - q0) > thresh16) * -1; |
| return ~mask; |
| } |
| |
| // Is there high edge variance internal edge: |
| // 11111111_11111111 yes, 00000000_00000000 no ? |
| static INLINE int16_t highbd_hev_mask(uint8_t thresh, uint16_t p1, uint16_t p0, |
| uint16_t q0, uint16_t q1, int bd) { |
| int16_t hev = 0; |
| int16_t thresh16 = (uint16_t)thresh << (bd - 8); |
| hev |= (abs(p1 - p0) > thresh16) * -1; |
| hev |= (abs(q1 - q0) > thresh16) * -1; |
| return hev; |
| } |
| |
| static INLINE void highbd_filter4(int8_t mask, uint8_t thresh, uint16_t *op1, |
| uint16_t *op0, uint16_t *oq0, uint16_t *oq1, |
| int bd) { |
| int16_t filter1, filter2; |
| // ^0x80 equivalent to subtracting 0x80 from the values to turn them |
| // into -128 to +127 instead of 0 to 255. |
| int shift = bd - 8; |
| const int16_t ps1 = (int16_t)*op1 - (0x80 << shift); |
| const int16_t ps0 = (int16_t)*op0 - (0x80 << shift); |
| const int16_t qs0 = (int16_t)*oq0 - (0x80 << shift); |
| const int16_t qs1 = (int16_t)*oq1 - (0x80 << shift); |
| const uint16_t hev = highbd_hev_mask(thresh, *op1, *op0, *oq0, *oq1, bd); |
| |
| // Add outer taps if we have high edge variance. |
| int16_t filter = signed_char_clamp_high(ps1 - qs1, bd) & hev; |
| |
| // Inner taps. |
| filter = signed_char_clamp_high(filter + 3 * (qs0 - ps0), bd) & mask; |
| |
| // Save bottom 3 bits so that we round one side +4 and the other +3 |
| // if it equals 4 we'll set to adjust by -1 to account for the fact |
| // we'd round 3 the other way. |
| filter1 = signed_char_clamp_high(filter + 4, bd) >> 3; |
| filter2 = signed_char_clamp_high(filter + 3, bd) >> 3; |
| |
| *oq0 = signed_char_clamp_high(qs0 - filter1, bd) + (0x80 << shift); |
| *op0 = signed_char_clamp_high(ps0 + filter2, bd) + (0x80 << shift); |
| |
| // Outer tap adjustments. |
| filter = ROUND_POWER_OF_TWO(filter1, 1) & ~hev; |
| |
| *oq1 = signed_char_clamp_high(qs1 - filter, bd) + (0x80 << shift); |
| *op1 = signed_char_clamp_high(ps1 + filter, bd) + (0x80 << shift); |
| } |
| |
| void vpx_highbd_lpf_horizontal_4_c(uint16_t *s, int p /* pitch */, |
| const uint8_t *blimit, const uint8_t *limit, |
| const uint8_t *thresh, int bd) { |
| int i; |
| |
| // loop filter designed to work using chars so that we can make maximum use |
| // of 8 bit simd instructions. |
| for (i = 0; i < 8; ++i) { |
| const uint16_t p3 = s[-4 * p]; |
| const uint16_t p2 = s[-3 * p]; |
| const uint16_t p1 = s[-2 * p]; |
| const uint16_t p0 = s[-p]; |
| const uint16_t q0 = s[0 * p]; |
| const uint16_t q1 = s[1 * p]; |
| const uint16_t q2 = s[2 * p]; |
| const uint16_t q3 = s[3 * p]; |
| const int8_t mask = |
| highbd_filter_mask(*limit, *blimit, p3, p2, p1, p0, q0, q1, q2, q3, bd); |
| highbd_filter4(mask, *thresh, s - 2 * p, s - 1 * p, s, s + 1 * p, bd); |
| ++s; |
| } |
| } |
| |
| void vpx_highbd_lpf_horizontal_4_dual_c( |
| uint16_t *s, int p, const uint8_t *blimit0, const uint8_t *limit0, |
| const uint8_t *thresh0, const uint8_t *blimit1, const uint8_t *limit1, |
| const uint8_t *thresh1, int bd) { |
| vpx_highbd_lpf_horizontal_4_c(s, p, blimit0, limit0, thresh0, bd); |
| vpx_highbd_lpf_horizontal_4_c(s + 8, p, blimit1, limit1, thresh1, bd); |
| } |
| |
| void vpx_highbd_lpf_vertical_4_c(uint16_t *s, int pitch, const uint8_t *blimit, |
| const uint8_t *limit, const uint8_t *thresh, |
| int bd) { |
| int i; |
| |
| // loop filter designed to work using chars so that we can make maximum use |
| // of 8 bit simd instructions. |
| for (i = 0; i < 8; ++i) { |
| const uint16_t p3 = s[-4], p2 = s[-3], p1 = s[-2], p0 = s[-1]; |
| const uint16_t q0 = s[0], q1 = s[1], q2 = s[2], q3 = s[3]; |
| const int8_t mask = |
| highbd_filter_mask(*limit, *blimit, p3, p2, p1, p0, q0, q1, q2, q3, bd); |
| highbd_filter4(mask, *thresh, s - 2, s - 1, s, s + 1, bd); |
| s += pitch; |
| } |
| } |
| |
| void vpx_highbd_lpf_vertical_4_dual_c( |
| uint16_t *s, int pitch, const uint8_t *blimit0, const uint8_t *limit0, |
| const uint8_t *thresh0, const uint8_t *blimit1, const uint8_t *limit1, |
| const uint8_t *thresh1, int bd) { |
| vpx_highbd_lpf_vertical_4_c(s, pitch, blimit0, limit0, thresh0, bd); |
| vpx_highbd_lpf_vertical_4_c(s + 8 * pitch, pitch, blimit1, limit1, thresh1, |
| bd); |
| } |
| |
| static INLINE void highbd_filter8(int8_t mask, uint8_t thresh, uint8_t flat, |
| uint16_t *op3, uint16_t *op2, uint16_t *op1, |
| uint16_t *op0, uint16_t *oq0, uint16_t *oq1, |
| uint16_t *oq2, uint16_t *oq3, int bd) { |
| if (flat && mask) { |
| const uint16_t p3 = *op3, p2 = *op2, p1 = *op1, p0 = *op0; |
| const uint16_t q0 = *oq0, q1 = *oq1, q2 = *oq2, q3 = *oq3; |
| |
| // 7-tap filter [1, 1, 1, 2, 1, 1, 1] |
| *op2 = ROUND_POWER_OF_TWO(p3 + p3 + p3 + 2 * p2 + p1 + p0 + q0, 3); |
| *op1 = ROUND_POWER_OF_TWO(p3 + p3 + p2 + 2 * p1 + p0 + q0 + q1, 3); |
| *op0 = ROUND_POWER_OF_TWO(p3 + p2 + p1 + 2 * p0 + q0 + q1 + q2, 3); |
| *oq0 = ROUND_POWER_OF_TWO(p2 + p1 + p0 + 2 * q0 + q1 + q2 + q3, 3); |
| *oq1 = ROUND_POWER_OF_TWO(p1 + p0 + q0 + 2 * q1 + q2 + q3 + q3, 3); |
| *oq2 = ROUND_POWER_OF_TWO(p0 + q0 + q1 + 2 * q2 + q3 + q3 + q3, 3); |
| } else { |
| highbd_filter4(mask, thresh, op1, op0, oq0, oq1, bd); |
| } |
| } |
| |
| void vpx_highbd_lpf_horizontal_8_c(uint16_t *s, int p, const uint8_t *blimit, |
| const uint8_t *limit, const uint8_t *thresh, |
| int bd) { |
| int i; |
| |
| // loop filter designed to work using chars so that we can make maximum use |
| // of 8 bit simd instructions. |
| for (i = 0; i < 8; ++i) { |
| const uint16_t p3 = s[-4 * p], p2 = s[-3 * p], p1 = s[-2 * p], p0 = s[-p]; |
| const uint16_t q0 = s[0 * p], q1 = s[1 * p], q2 = s[2 * p], q3 = s[3 * p]; |
| |
| const int8_t mask = |
| highbd_filter_mask(*limit, *blimit, p3, p2, p1, p0, q0, q1, q2, q3, bd); |
| const int8_t flat = |
| highbd_flat_mask4(1, p3, p2, p1, p0, q0, q1, q2, q3, bd); |
| highbd_filter8(mask, *thresh, flat, s - 4 * p, s - 3 * p, s - 2 * p, |
| s - 1 * p, s, s + 1 * p, s + 2 * p, s + 3 * p, bd); |
| ++s; |
| } |
| } |
| |
| void vpx_highbd_lpf_horizontal_8_dual_c( |
| uint16_t *s, int p, const uint8_t *blimit0, const uint8_t *limit0, |
| const uint8_t *thresh0, const uint8_t *blimit1, const uint8_t *limit1, |
| const uint8_t *thresh1, int bd) { |
| vpx_highbd_lpf_horizontal_8_c(s, p, blimit0, limit0, thresh0, bd); |
| vpx_highbd_lpf_horizontal_8_c(s + 8, p, blimit1, limit1, thresh1, bd); |
| } |
| |
| void vpx_highbd_lpf_vertical_8_c(uint16_t *s, int pitch, const uint8_t *blimit, |
| const uint8_t *limit, const uint8_t *thresh, |
| int bd) { |
| int i; |
| |
| for (i = 0; i < 8; ++i) { |
| const uint16_t p3 = s[-4], p2 = s[-3], p1 = s[-2], p0 = s[-1]; |
| const uint16_t q0 = s[0], q1 = s[1], q2 = s[2], q3 = s[3]; |
| const int8_t mask = |
| highbd_filter_mask(*limit, *blimit, p3, p2, p1, p0, q0, q1, q2, q3, bd); |
| const int8_t flat = |
| highbd_flat_mask4(1, p3, p2, p1, p0, q0, q1, q2, q3, bd); |
| highbd_filter8(mask, *thresh, flat, s - 4, s - 3, s - 2, s - 1, s, s + 1, |
| s + 2, s + 3, bd); |
| s += pitch; |
| } |
| } |
| |
| void vpx_highbd_lpf_vertical_8_dual_c( |
| uint16_t *s, int pitch, const uint8_t *blimit0, const uint8_t *limit0, |
| const uint8_t *thresh0, const uint8_t *blimit1, const uint8_t *limit1, |
| const uint8_t *thresh1, int bd) { |
| vpx_highbd_lpf_vertical_8_c(s, pitch, blimit0, limit0, thresh0, bd); |
| vpx_highbd_lpf_vertical_8_c(s + 8 * pitch, pitch, blimit1, limit1, thresh1, |
| bd); |
| } |
| |
| static INLINE void highbd_filter16(int8_t mask, uint8_t thresh, uint8_t flat, |
| uint8_t flat2, uint16_t *op7, uint16_t *op6, |
| uint16_t *op5, uint16_t *op4, uint16_t *op3, |
| uint16_t *op2, uint16_t *op1, uint16_t *op0, |
| uint16_t *oq0, uint16_t *oq1, uint16_t *oq2, |
| uint16_t *oq3, uint16_t *oq4, uint16_t *oq5, |
| uint16_t *oq6, uint16_t *oq7, int bd) { |
| if (flat2 && flat && mask) { |
| const uint16_t p7 = *op7; |
| const uint16_t p6 = *op6; |
| const uint16_t p5 = *op5; |
| const uint16_t p4 = *op4; |
| const uint16_t p3 = *op3; |
| const uint16_t p2 = *op2; |
| const uint16_t p1 = *op1; |
| const uint16_t p0 = *op0; |
| const uint16_t q0 = *oq0; |
| const uint16_t q1 = *oq1; |
| const uint16_t q2 = *oq2; |
| const uint16_t q3 = *oq3; |
| const uint16_t q4 = *oq4; |
| const uint16_t q5 = *oq5; |
| const uint16_t q6 = *oq6; |
| const uint16_t q7 = *oq7; |
| |
| // 15-tap filter [1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1] |
| *op6 = ROUND_POWER_OF_TWO( |
| p7 * 7 + p6 * 2 + p5 + p4 + p3 + p2 + p1 + p0 + q0, 4); |
| *op5 = ROUND_POWER_OF_TWO( |
| p7 * 6 + p6 + p5 * 2 + p4 + p3 + p2 + p1 + p0 + q0 + q1, 4); |
| *op4 = ROUND_POWER_OF_TWO( |
| p7 * 5 + p6 + p5 + p4 * 2 + p3 + p2 + p1 + p0 + q0 + q1 + q2, 4); |
| *op3 = ROUND_POWER_OF_TWO( |
| p7 * 4 + p6 + p5 + p4 + p3 * 2 + p2 + p1 + p0 + q0 + q1 + q2 + q3, 4); |
| *op2 = ROUND_POWER_OF_TWO( |
| p7 * 3 + p6 + p5 + p4 + p3 + p2 * 2 + p1 + p0 + q0 + q1 + q2 + q3 + q4, |
| 4); |
| *op1 = ROUND_POWER_OF_TWO(p7 * 2 + p6 + p5 + p4 + p3 + p2 + p1 * 2 + p0 + |
| q0 + q1 + q2 + q3 + q4 + q5, |
| 4); |
| *op0 = ROUND_POWER_OF_TWO(p7 + p6 + p5 + p4 + p3 + p2 + p1 + p0 * 2 + q0 + |
| q1 + q2 + q3 + q4 + q5 + q6, |
| 4); |
| *oq0 = ROUND_POWER_OF_TWO(p6 + p5 + p4 + p3 + p2 + p1 + p0 + q0 * 2 + q1 + |
| q2 + q3 + q4 + q5 + q6 + q7, |
| 4); |
| *oq1 = ROUND_POWER_OF_TWO(p5 + p4 + p3 + p2 + p1 + p0 + q0 + q1 * 2 + q2 + |
| q3 + q4 + q5 + q6 + q7 * 2, |
| 4); |
| *oq2 = ROUND_POWER_OF_TWO( |
| p4 + p3 + p2 + p1 + p0 + q0 + q1 + q2 * 2 + q3 + q4 + q5 + q6 + q7 * 3, |
| 4); |
| *oq3 = ROUND_POWER_OF_TWO( |
| p3 + p2 + p1 + p0 + q0 + q1 + q2 + q3 * 2 + q4 + q5 + q6 + q7 * 4, 4); |
| *oq4 = ROUND_POWER_OF_TWO( |
| p2 + p1 + p0 + q0 + q1 + q2 + q3 + q4 * 2 + q5 + q6 + q7 * 5, 4); |
| *oq5 = ROUND_POWER_OF_TWO( |
| p1 + p0 + q0 + q1 + q2 + q3 + q4 + q5 * 2 + q6 + q7 * 6, 4); |
| *oq6 = ROUND_POWER_OF_TWO( |
| p0 + q0 + q1 + q2 + q3 + q4 + q5 + q6 * 2 + q7 * 7, 4); |
| } else { |
| highbd_filter8(mask, thresh, flat, op3, op2, op1, op0, oq0, oq1, oq2, oq3, |
| bd); |
| } |
| } |
| |
| static void highbd_mb_lpf_horizontal_edge_w(uint16_t *s, int p, |
| const uint8_t *blimit, |
| const uint8_t *limit, |
| const uint8_t *thresh, int count, |
| int bd) { |
| int i; |
| |
| // loop filter designed to work using chars so that we can make maximum use |
| // of 8 bit simd instructions. |
| for (i = 0; i < 8 * count; ++i) { |
| const uint16_t p3 = s[-4 * p]; |
| const uint16_t p2 = s[-3 * p]; |
| const uint16_t p1 = s[-2 * p]; |
| const uint16_t p0 = s[-p]; |
| const uint16_t q0 = s[0 * p]; |
| const uint16_t q1 = s[1 * p]; |
| const uint16_t q2 = s[2 * p]; |
| const uint16_t q3 = s[3 * p]; |
| const int8_t mask = |
| highbd_filter_mask(*limit, *blimit, p3, p2, p1, p0, q0, q1, q2, q3, bd); |
| const int8_t flat = |
| highbd_flat_mask4(1, p3, p2, p1, p0, q0, q1, q2, q3, bd); |
| const int8_t flat2 = |
| highbd_flat_mask5(1, s[-8 * p], s[-7 * p], s[-6 * p], s[-5 * p], p0, q0, |
| s[4 * p], s[5 * p], s[6 * p], s[7 * p], bd); |
| |
| highbd_filter16(mask, *thresh, flat, flat2, s - 8 * p, s - 7 * p, s - 6 * p, |
| s - 5 * p, s - 4 * p, s - 3 * p, s - 2 * p, s - 1 * p, s, |
| s + 1 * p, s + 2 * p, s + 3 * p, s + 4 * p, s + 5 * p, |
| s + 6 * p, s + 7 * p, bd); |
| ++s; |
| } |
| } |
| |
| void vpx_highbd_lpf_horizontal_edge_8_c(uint16_t *s, int p, |
| const uint8_t *blimit, |
| const uint8_t *limit, |
| const uint8_t *thresh, int bd) { |
| highbd_mb_lpf_horizontal_edge_w(s, p, blimit, limit, thresh, 1, bd); |
| } |
| |
| void vpx_highbd_lpf_horizontal_edge_16_c(uint16_t *s, int p, |
| const uint8_t *blimit, |
| const uint8_t *limit, |
| const uint8_t *thresh, int bd) { |
| highbd_mb_lpf_horizontal_edge_w(s, p, blimit, limit, thresh, 2, bd); |
| } |
| |
| static void highbd_mb_lpf_vertical_edge_w(uint16_t *s, int p, |
| const uint8_t *blimit, |
| const uint8_t *limit, |
| const uint8_t *thresh, int count, |
| int bd) { |
| int i; |
| |
| for (i = 0; i < count; ++i) { |
| const uint16_t p3 = s[-4]; |
| const uint16_t p2 = s[-3]; |
| const uint16_t p1 = s[-2]; |
| const uint16_t p0 = s[-1]; |
| const uint16_t q0 = s[0]; |
| const uint16_t q1 = s[1]; |
| const uint16_t q2 = s[2]; |
| const uint16_t q3 = s[3]; |
| const int8_t mask = |
| highbd_filter_mask(*limit, *blimit, p3, p2, p1, p0, q0, q1, q2, q3, bd); |
| const int8_t flat = |
| highbd_flat_mask4(1, p3, p2, p1, p0, q0, q1, q2, q3, bd); |
| const int8_t flat2 = highbd_flat_mask5(1, s[-8], s[-7], s[-6], s[-5], p0, |
| q0, s[4], s[5], s[6], s[7], bd); |
| |
| highbd_filter16(mask, *thresh, flat, flat2, s - 8, s - 7, s - 6, s - 5, |
| s - 4, s - 3, s - 2, s - 1, s, s + 1, s + 2, s + 3, s + 4, |
| s + 5, s + 6, s + 7, bd); |
| s += p; |
| } |
| } |
| |
| void vpx_highbd_lpf_vertical_16_c(uint16_t *s, int p, const uint8_t *blimit, |
| const uint8_t *limit, const uint8_t *thresh, |
| int bd) { |
| highbd_mb_lpf_vertical_edge_w(s, p, blimit, limit, thresh, 8, bd); |
| } |
| |
| void vpx_highbd_lpf_vertical_16_dual_c(uint16_t *s, int p, |
| const uint8_t *blimit, |
| const uint8_t *limit, |
| const uint8_t *thresh, int bd) { |
| highbd_mb_lpf_vertical_edge_w(s, p, blimit, limit, thresh, 16, bd); |
| } |
| #endif // CONFIG_VP9_HIGHBITDEPTH |
