112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
/*
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* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <arm_neon.h>
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#include "./vpx_config.h"
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static INLINE void vp8_loop_filter_simple_horizontal_edge_neon(
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unsigned char *s,
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int p,
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const unsigned char *blimit) {
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uint8_t *sp;
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uint8x16_t qblimit, q0u8;
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uint8x16_t q5u8, q6u8, q7u8, q8u8, q9u8, q10u8, q14u8, q15u8;
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int16x8_t q2s16, q3s16, q13s16;
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int8x8_t d8s8, d9s8;
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int8x16_t q2s8, q3s8, q4s8, q10s8, q11s8, q14s8;
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qblimit = vdupq_n_u8(*blimit);
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sp = s - (p << 1);
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q5u8 = vld1q_u8(sp);
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sp += p;
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q6u8 = vld1q_u8(sp);
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sp += p;
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q7u8 = vld1q_u8(sp);
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sp += p;
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q8u8 = vld1q_u8(sp);
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q15u8 = vabdq_u8(q6u8, q7u8);
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q14u8 = vabdq_u8(q5u8, q8u8);
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q15u8 = vqaddq_u8(q15u8, q15u8);
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q14u8 = vshrq_n_u8(q14u8, 1);
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q0u8 = vdupq_n_u8(0x80);
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q13s16 = vdupq_n_s16(3);
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q15u8 = vqaddq_u8(q15u8, q14u8);
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q5u8 = veorq_u8(q5u8, q0u8);
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q6u8 = veorq_u8(q6u8, q0u8);
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q7u8 = veorq_u8(q7u8, q0u8);
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q8u8 = veorq_u8(q8u8, q0u8);
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q15u8 = vcgeq_u8(qblimit, q15u8);
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q2s16 = vsubl_s8(vget_low_s8(vreinterpretq_s8_u8(q7u8)),
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vget_low_s8(vreinterpretq_s8_u8(q6u8)));
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q3s16 = vsubl_s8(vget_high_s8(vreinterpretq_s8_u8(q7u8)),
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vget_high_s8(vreinterpretq_s8_u8(q6u8)));
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q4s8 = vqsubq_s8(vreinterpretq_s8_u8(q5u8),
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vreinterpretq_s8_u8(q8u8));
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q2s16 = vmulq_s16(q2s16, q13s16);
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q3s16 = vmulq_s16(q3s16, q13s16);
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q10u8 = vdupq_n_u8(3);
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q9u8 = vdupq_n_u8(4);
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q2s16 = vaddw_s8(q2s16, vget_low_s8(q4s8));
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q3s16 = vaddw_s8(q3s16, vget_high_s8(q4s8));
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d8s8 = vqmovn_s16(q2s16);
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d9s8 = vqmovn_s16(q3s16);
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q4s8 = vcombine_s8(d8s8, d9s8);
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q14s8 = vandq_s8(q4s8, vreinterpretq_s8_u8(q15u8));
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q2s8 = vqaddq_s8(q14s8, vreinterpretq_s8_u8(q10u8));
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q3s8 = vqaddq_s8(q14s8, vreinterpretq_s8_u8(q9u8));
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q2s8 = vshrq_n_s8(q2s8, 3);
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q3s8 = vshrq_n_s8(q3s8, 3);
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q11s8 = vqaddq_s8(vreinterpretq_s8_u8(q6u8), q2s8);
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q10s8 = vqsubq_s8(vreinterpretq_s8_u8(q7u8), q3s8);
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q6u8 = veorq_u8(vreinterpretq_u8_s8(q11s8), q0u8);
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q7u8 = veorq_u8(vreinterpretq_u8_s8(q10s8), q0u8);
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vst1q_u8(s, q7u8);
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s -= p;
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vst1q_u8(s, q6u8);
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return;
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}
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void vp8_loop_filter_bhs_neon(
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unsigned char *y_ptr,
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int y_stride,
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const unsigned char *blimit) {
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y_ptr += y_stride * 4;
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vp8_loop_filter_simple_horizontal_edge_neon(y_ptr, y_stride, blimit);
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y_ptr += y_stride * 4;
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vp8_loop_filter_simple_horizontal_edge_neon(y_ptr, y_stride, blimit);
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y_ptr += y_stride * 4;
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vp8_loop_filter_simple_horizontal_edge_neon(y_ptr, y_stride, blimit);
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return;
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}
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void vp8_loop_filter_mbhs_neon(
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unsigned char *y_ptr,
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int y_stride,
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const unsigned char *blimit) {
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vp8_loop_filter_simple_horizontal_edge_neon(y_ptr, y_stride, blimit);
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return;
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}
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