| /* |
| * Copyright (c) 2014 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 <arm_neon.h> |
| |
| #include "./vpx_dsp_rtcd.h" |
| #include "./vpx_config.h" |
| #include "vpx/vpx_integer.h" |
| |
| static INLINE void loop_filter_neon_16( |
| uint8x16_t qblimit, // blimit |
| uint8x16_t qlimit, // limit |
| uint8x16_t qthresh, // thresh |
| uint8x16_t q3, // p3 |
| uint8x16_t q4, // p2 |
| uint8x16_t q5, // p1 |
| uint8x16_t q6, // p0 |
| uint8x16_t q7, // q0 |
| uint8x16_t q8, // q1 |
| uint8x16_t q9, // q2 |
| uint8x16_t q10, // q3 |
| uint8x16_t *q5r, // p1 |
| uint8x16_t *q6r, // p0 |
| uint8x16_t *q7r, // q0 |
| uint8x16_t *q8r) { // q1 |
| uint8x16_t q1u8, q2u8, q11u8, q12u8, q13u8, q14u8, q15u8; |
| int16x8_t q2s16, q11s16; |
| uint16x8_t q4u16; |
| int8x16_t q0s8, q1s8, q2s8, q11s8, q12s8, q13s8; |
| int8x8_t d2s8, d3s8; |
| |
| q11u8 = vabdq_u8(q3, q4); |
| q12u8 = vabdq_u8(q4, q5); |
| q13u8 = vabdq_u8(q5, q6); |
| q14u8 = vabdq_u8(q8, q7); |
| q3 = vabdq_u8(q9, q8); |
| q4 = vabdq_u8(q10, q9); |
| |
| q11u8 = vmaxq_u8(q11u8, q12u8); |
| q12u8 = vmaxq_u8(q13u8, q14u8); |
| q3 = vmaxq_u8(q3, q4); |
| q15u8 = vmaxq_u8(q11u8, q12u8); |
| |
| q9 = vabdq_u8(q6, q7); |
| |
| // vp8_hevmask |
| q13u8 = vcgtq_u8(q13u8, qthresh); |
| q14u8 = vcgtq_u8(q14u8, qthresh); |
| q15u8 = vmaxq_u8(q15u8, q3); |
| |
| q2u8 = vabdq_u8(q5, q8); |
| q9 = vqaddq_u8(q9, q9); |
| |
| q15u8 = vcgeq_u8(qlimit, q15u8); |
| |
| // vp8_filter() function |
| // convert to signed |
| q10 = vdupq_n_u8(0x80); |
| q8 = veorq_u8(q8, q10); |
| q7 = veorq_u8(q7, q10); |
| q6 = veorq_u8(q6, q10); |
| q5 = veorq_u8(q5, q10); |
| |
| q2u8 = vshrq_n_u8(q2u8, 1); |
| q9 = vqaddq_u8(q9, q2u8); |
| |
| q2s16 = vsubl_s8(vget_low_s8(vreinterpretq_s8_u8(q7)), |
| vget_low_s8(vreinterpretq_s8_u8(q6))); |
| q11s16 = vsubl_s8(vget_high_s8(vreinterpretq_s8_u8(q7)), |
| vget_high_s8(vreinterpretq_s8_u8(q6))); |
| |
| q9 = vcgeq_u8(qblimit, q9); |
| |
| q1s8 = vqsubq_s8(vreinterpretq_s8_u8(q5), |
| vreinterpretq_s8_u8(q8)); |
| |
| q14u8 = vorrq_u8(q13u8, q14u8); |
| |
| q4u16 = vdupq_n_u16(3); |
| q2s16 = vmulq_s16(q2s16, vreinterpretq_s16_u16(q4u16)); |
| q11s16 = vmulq_s16(q11s16, vreinterpretq_s16_u16(q4u16)); |
| |
| q1u8 = vandq_u8(vreinterpretq_u8_s8(q1s8), q14u8); |
| q15u8 = vandq_u8(q15u8, q9); |
| |
| q1s8 = vreinterpretq_s8_u8(q1u8); |
| q2s16 = vaddw_s8(q2s16, vget_low_s8(q1s8)); |
| q11s16 = vaddw_s8(q11s16, vget_high_s8(q1s8)); |
| |
| q4 = vdupq_n_u8(3); |
| q9 = vdupq_n_u8(4); |
| // vp8_filter = clamp(vp8_filter + 3 * ( qs0 - ps0)) |
| d2s8 = vqmovn_s16(q2s16); |
| d3s8 = vqmovn_s16(q11s16); |
| q1s8 = vcombine_s8(d2s8, d3s8); |
| q1u8 = vandq_u8(vreinterpretq_u8_s8(q1s8), q15u8); |
| q1s8 = vreinterpretq_s8_u8(q1u8); |
| |
| q2s8 = vqaddq_s8(q1s8, vreinterpretq_s8_u8(q4)); |
| q1s8 = vqaddq_s8(q1s8, vreinterpretq_s8_u8(q9)); |
| q2s8 = vshrq_n_s8(q2s8, 3); |
| q1s8 = vshrq_n_s8(q1s8, 3); |
| |
| q11s8 = vqaddq_s8(vreinterpretq_s8_u8(q6), q2s8); |
| q0s8 = vqsubq_s8(vreinterpretq_s8_u8(q7), q1s8); |
| |
| q1s8 = vrshrq_n_s8(q1s8, 1); |
| q1s8 = vbicq_s8(q1s8, vreinterpretq_s8_u8(q14u8)); |
| |
| q13s8 = vqaddq_s8(vreinterpretq_s8_u8(q5), q1s8); |
| q12s8 = vqsubq_s8(vreinterpretq_s8_u8(q8), q1s8); |
| |
| *q8r = veorq_u8(vreinterpretq_u8_s8(q12s8), q10); |
| *q7r = veorq_u8(vreinterpretq_u8_s8(q0s8), q10); |
| *q6r = veorq_u8(vreinterpretq_u8_s8(q11s8), q10); |
| *q5r = veorq_u8(vreinterpretq_u8_s8(q13s8), q10); |
| return; |
| } |
| |
| void vpx_lpf_horizontal_4_dual_neon(uint8_t *s, int p /* 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) { |
| uint8x8_t dblimit0, dlimit0, dthresh0, dblimit1, dlimit1, dthresh1; |
| uint8x16_t qblimit, qlimit, qthresh; |
| uint8x16_t q3u8, q4u8, q5u8, q6u8, q7u8, q8u8, q9u8, q10u8; |
| |
| dblimit0 = vld1_u8(blimit0); |
| dlimit0 = vld1_u8(limit0); |
| dthresh0 = vld1_u8(thresh0); |
| dblimit1 = vld1_u8(blimit1); |
| dlimit1 = vld1_u8(limit1); |
| dthresh1 = vld1_u8(thresh1); |
| qblimit = vcombine_u8(dblimit0, dblimit1); |
| qlimit = vcombine_u8(dlimit0, dlimit1); |
| qthresh = vcombine_u8(dthresh0, dthresh1); |
| |
| s -= (p << 2); |
| |
| q3u8 = vld1q_u8(s); |
| s += p; |
| q4u8 = vld1q_u8(s); |
| s += p; |
| q5u8 = vld1q_u8(s); |
| s += p; |
| q6u8 = vld1q_u8(s); |
| s += p; |
| q7u8 = vld1q_u8(s); |
| s += p; |
| q8u8 = vld1q_u8(s); |
| s += p; |
| q9u8 = vld1q_u8(s); |
| s += p; |
| q10u8 = vld1q_u8(s); |
| |
| loop_filter_neon_16(qblimit, qlimit, qthresh, |
| q3u8, q4u8, q5u8, q6u8, q7u8, q8u8, q9u8, q10u8, |
| &q5u8, &q6u8, &q7u8, &q8u8); |
| |
| s -= (p * 5); |
| vst1q_u8(s, q5u8); |
| s += p; |
| vst1q_u8(s, q6u8); |
| s += p; |
| vst1q_u8(s, q7u8); |
| s += p; |
| vst1q_u8(s, q8u8); |
| return; |
| } |