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/*
* 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_config.h"
#include "vp8/common/arm/loopfilter_arm.h"
#include "vpx_ports/arm.h"
static INLINE void vp8_loop_filter_neon(uint8x16_t qblimit, // flimit
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 q0u8, q1u8, q2u8, q11u8, q12u8, q13u8, q14u8, q15u8;
int16x8_t q2s16, q11s16;
uint16x8_t q4u16;
int8x16_t q1s8, q2s8, q10s8, 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);
q10 = vdupq_n_u8(3);
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 = vmovl_u8(vget_low_u8(q10));
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));
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(q10));
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);
q10s8 = 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);
q0u8 = vdupq_n_u8(0x80);
*q8r = veorq_u8(vreinterpretq_u8_s8(q12s8), q0u8);
*q7r = veorq_u8(vreinterpretq_u8_s8(q10s8), q0u8);
*q6r = veorq_u8(vreinterpretq_u8_s8(q11s8), q0u8);
*q5r = veorq_u8(vreinterpretq_u8_s8(q13s8), q0u8);
return;
}
void vp8_loop_filter_horizontal_edge_y_neon(unsigned char *src, int pitch,
unsigned char blimit,
unsigned char limit,
unsigned char thresh) {
uint8x16_t qblimit, qlimit, qthresh, q3, q4;
uint8x16_t q5, q6, q7, q8, q9, q10;
qblimit = vdupq_n_u8(blimit);
qlimit = vdupq_n_u8(limit);
qthresh = vdupq_n_u8(thresh);
src -= (pitch << 2);
q3 = vld1q_u8(src);
src += pitch;
q4 = vld1q_u8(src);
src += pitch;
q5 = vld1q_u8(src);
src += pitch;
q6 = vld1q_u8(src);
src += pitch;
q7 = vld1q_u8(src);
src += pitch;
q8 = vld1q_u8(src);
src += pitch;
q9 = vld1q_u8(src);
src += pitch;
q10 = vld1q_u8(src);
vp8_loop_filter_neon(qblimit, qlimit, qthresh, q3, q4, q5, q6, q7, q8, q9,
q10, &q5, &q6, &q7, &q8);
src -= (pitch * 5);
vst1q_u8(src, q5);
src += pitch;
vst1q_u8(src, q6);
src += pitch;
vst1q_u8(src, q7);
src += pitch;
vst1q_u8(src, q8);
return;
}
void vp8_loop_filter_horizontal_edge_uv_neon(unsigned char *u, int pitch,
unsigned char blimit,
unsigned char limit,
unsigned char thresh,
unsigned char *v) {
uint8x16_t qblimit, qlimit, qthresh, q3, q4;
uint8x16_t q5, q6, q7, q8, q9, q10;
uint8x8_t d6, d7, d8, d9, d10, d11, d12, d13, d14;
uint8x8_t d15, d16, d17, d18, d19, d20, d21;
qblimit = vdupq_n_u8(blimit);
qlimit = vdupq_n_u8(limit);
qthresh = vdupq_n_u8(thresh);
u -= (pitch << 2);
v -= (pitch << 2);
d6 = vld1_u8(u);
u += pitch;
d7 = vld1_u8(v);
v += pitch;
d8 = vld1_u8(u);
u += pitch;
d9 = vld1_u8(v);
v += pitch;
d10 = vld1_u8(u);
u += pitch;
d11 = vld1_u8(v);
v += pitch;
d12 = vld1_u8(u);
u += pitch;
d13 = vld1_u8(v);
v += pitch;
d14 = vld1_u8(u);
u += pitch;
d15 = vld1_u8(v);
v += pitch;
d16 = vld1_u8(u);
u += pitch;
d17 = vld1_u8(v);
v += pitch;
d18 = vld1_u8(u);
u += pitch;
d19 = vld1_u8(v);
v += pitch;
d20 = vld1_u8(u);
d21 = vld1_u8(v);
q3 = vcombine_u8(d6, d7);
q4 = vcombine_u8(d8, d9);
q5 = vcombine_u8(d10, d11);
q6 = vcombine_u8(d12, d13);
q7 = vcombine_u8(d14, d15);
q8 = vcombine_u8(d16, d17);
q9 = vcombine_u8(d18, d19);
q10 = vcombine_u8(d20, d21);
vp8_loop_filter_neon(qblimit, qlimit, qthresh, q3, q4, q5, q6, q7, q8, q9,
q10, &q5, &q6, &q7, &q8);
u -= (pitch * 5);
vst1_u8(u, vget_low_u8(q5));
u += pitch;
vst1_u8(u, vget_low_u8(q6));
u += pitch;
vst1_u8(u, vget_low_u8(q7));
u += pitch;
vst1_u8(u, vget_low_u8(q8));
v -= (pitch * 5);
vst1_u8(v, vget_high_u8(q5));
v += pitch;
vst1_u8(v, vget_high_u8(q6));
v += pitch;
vst1_u8(v, vget_high_u8(q7));
v += pitch;
vst1_u8(v, vget_high_u8(q8));
return;
}
static INLINE void write_4x8(unsigned char *dst, int pitch,
const uint8x8x4_t result) {
#ifdef VPX_INCOMPATIBLE_GCC
/*
* uint8x8x4_t result
00 01 02 03 | 04 05 06 07
10 11 12 13 | 14 15 16 17
20 21 22 23 | 24 25 26 27
30 31 32 33 | 34 35 36 37
---
* after vtrn_u16
00 01 20 21 | 04 05 24 25
02 03 22 23 | 06 07 26 27
10 11 30 31 | 14 15 34 35
12 13 32 33 | 16 17 36 37
---
* after vtrn_u8
00 10 20 30 | 04 14 24 34
01 11 21 31 | 05 15 25 35
02 12 22 32 | 06 16 26 36
03 13 23 33 | 07 17 27 37
*/
const uint16x4x2_t r02_u16 = vtrn_u16(vreinterpret_u16_u8(result.val[0]),
vreinterpret_u16_u8(result.val[2]));
const uint16x4x2_t r13_u16 = vtrn_u16(vreinterpret_u16_u8(result.val[1]),
vreinterpret_u16_u8(result.val[3]));
const uint8x8x2_t r01_u8 = vtrn_u8(vreinterpret_u8_u16(r02_u16.val[0]),
vreinterpret_u8_u16(r13_u16.val[0]));
const uint8x8x2_t r23_u8 = vtrn_u8(vreinterpret_u8_u16(r02_u16.val[1]),
vreinterpret_u8_u16(r13_u16.val[1]));
const uint32x2_t x_0_4 = vreinterpret_u32_u8(r01_u8.val[0]);
const uint32x2_t x_1_5 = vreinterpret_u32_u8(r01_u8.val[1]);
const uint32x2_t x_2_6 = vreinterpret_u32_u8(r23_u8.val[0]);
const uint32x2_t x_3_7 = vreinterpret_u32_u8(r23_u8.val[1]);
vst1_lane_u32((uint32_t *)dst, x_0_4, 0);
dst += pitch;
vst1_lane_u32((uint32_t *)dst, x_1_5, 0);
dst += pitch;
vst1_lane_u32((uint32_t *)dst, x_2_6, 0);
dst += pitch;
vst1_lane_u32((uint32_t *)dst, x_3_7, 0);
dst += pitch;
vst1_lane_u32((uint32_t *)dst, x_0_4, 1);
dst += pitch;
vst1_lane_u32((uint32_t *)dst, x_1_5, 1);
dst += pitch;
vst1_lane_u32((uint32_t *)dst, x_2_6, 1);
dst += pitch;
vst1_lane_u32((uint32_t *)dst, x_3_7, 1);
#else
vst4_lane_u8(dst, result, 0);
dst += pitch;
vst4_lane_u8(dst, result, 1);
dst += pitch;
vst4_lane_u8(dst, result, 2);
dst += pitch;
vst4_lane_u8(dst, result, 3);
dst += pitch;
vst4_lane_u8(dst, result, 4);
dst += pitch;
vst4_lane_u8(dst, result, 5);
dst += pitch;
vst4_lane_u8(dst, result, 6);
dst += pitch;
vst4_lane_u8(dst, result, 7);
#endif // VPX_INCOMPATIBLE_GCC
}
void vp8_loop_filter_vertical_edge_y_neon(unsigned char *src, int pitch,
unsigned char blimit,
unsigned char limit,
unsigned char thresh) {
unsigned char *s, *d;
uint8x16_t qblimit, qlimit, qthresh, q3, q4;
uint8x16_t q5, q6, q7, q8, q9, q10;
uint8x8_t d6, d7, d8, d9, d10, d11, d12, d13, d14;
uint8x8_t d15, d16, d17, d18, d19, d20, d21;
uint32x4x2_t q2tmp0, q2tmp1, q2tmp2, q2tmp3;
uint16x8x2_t q2tmp4, q2tmp5, q2tmp6, q2tmp7;
uint8x16x2_t q2tmp8, q2tmp9, q2tmp10, q2tmp11;
uint8x8x4_t q4ResultH, q4ResultL;
qblimit = vdupq_n_u8(blimit);
qlimit = vdupq_n_u8(limit);
qthresh = vdupq_n_u8(thresh);
s = src - 4;
d6 = vld1_u8(s);
s += pitch;
d8 = vld1_u8(s);
s += pitch;
d10 = vld1_u8(s);
s += pitch;
d12 = vld1_u8(s);
s += pitch;
d14 = vld1_u8(s);
s += pitch;
d16 = vld1_u8(s);
s += pitch;
d18 = vld1_u8(s);
s += pitch;
d20 = vld1_u8(s);
s += pitch;
d7 = vld1_u8(s);
s += pitch;
d9 = vld1_u8(s);
s += pitch;
d11 = vld1_u8(s);
s += pitch;
d13 = vld1_u8(s);
s += pitch;
d15 = vld1_u8(s);
s += pitch;
d17 = vld1_u8(s);
s += pitch;
d19 = vld1_u8(s);
s += pitch;
d21 = vld1_u8(s);
q3 = vcombine_u8(d6, d7);
q4 = vcombine_u8(d8, d9);
q5 = vcombine_u8(d10, d11);
q6 = vcombine_u8(d12, d13);
q7 = vcombine_u8(d14, d15);
q8 = vcombine_u8(d16, d17);
q9 = vcombine_u8(d18, d19);
q10 = vcombine_u8(d20, d21);
q2tmp0 = vtrnq_u32(vreinterpretq_u32_u8(q3), vreinterpretq_u32_u8(q7));
q2tmp1 = vtrnq_u32(vreinterpretq_u32_u8(q4), vreinterpretq_u32_u8(q8));
q2tmp2 = vtrnq_u32(vreinterpretq_u32_u8(q5), vreinterpretq_u32_u8(q9));
q2tmp3 = vtrnq_u32(vreinterpretq_u32_u8(q6), vreinterpretq_u32_u8(q10));
q2tmp4 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[0]),
vreinterpretq_u16_u32(q2tmp2.val[0]));
q2tmp5 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[0]),
vreinterpretq_u16_u32(q2tmp3.val[0]));
q2tmp6 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[1]),
vreinterpretq_u16_u32(q2tmp2.val[1]));
q2tmp7 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[1]),
vreinterpretq_u16_u32(q2tmp3.val[1]));
q2tmp8 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[0]),
vreinterpretq_u8_u16(q2tmp5.val[0]));
q2tmp9 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[1]),
vreinterpretq_u8_u16(q2tmp5.val[1]));
q2tmp10 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[0]),
vreinterpretq_u8_u16(q2tmp7.val[0]));
q2tmp11 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[1]),
vreinterpretq_u8_u16(q2tmp7.val[1]));
q3 = q2tmp8.val[0];
q4 = q2tmp8.val[1];
q5 = q2tmp9.val[0];
q6 = q2tmp9.val[1];
q7 = q2tmp10.val[0];
q8 = q2tmp10.val[1];
q9 = q2tmp11.val[0];
q10 = q2tmp11.val[1];
vp8_loop_filter_neon(qblimit, qlimit, qthresh, q3, q4, q5, q6, q7, q8, q9,
q10, &q5, &q6, &q7, &q8);
q4ResultL.val[0] = vget_low_u8(q5); // d10
q4ResultL.val[1] = vget_low_u8(q6); // d12
q4ResultL.val[2] = vget_low_u8(q7); // d14
q4ResultL.val[3] = vget_low_u8(q8); // d16
q4ResultH.val[0] = vget_high_u8(q5); // d11
q4ResultH.val[1] = vget_high_u8(q6); // d13
q4ResultH.val[2] = vget_high_u8(q7); // d15
q4ResultH.val[3] = vget_high_u8(q8); // d17
d = src - 2;
write_4x8(d, pitch, q4ResultL);
d += pitch * 8;
write_4x8(d, pitch, q4ResultH);
}
void vp8_loop_filter_vertical_edge_uv_neon(unsigned char *u, int pitch,
unsigned char blimit,
unsigned char limit,
unsigned char thresh,
unsigned char *v) {
unsigned char *us, *ud;
unsigned char *vs, *vd;
uint8x16_t qblimit, qlimit, qthresh, q3, q4;
uint8x16_t q5, q6, q7, q8, q9, q10;
uint8x8_t d6, d7, d8, d9, d10, d11, d12, d13, d14;
uint8x8_t d15, d16, d17, d18, d19, d20, d21;
uint32x4x2_t q2tmp0, q2tmp1, q2tmp2, q2tmp3;
uint16x8x2_t q2tmp4, q2tmp5, q2tmp6, q2tmp7;
uint8x16x2_t q2tmp8, q2tmp9, q2tmp10, q2tmp11;
uint8x8x4_t q4ResultH, q4ResultL;
qblimit = vdupq_n_u8(blimit);
qlimit = vdupq_n_u8(limit);
qthresh = vdupq_n_u8(thresh);
us = u - 4;
d6 = vld1_u8(us);
us += pitch;
d8 = vld1_u8(us);
us += pitch;
d10 = vld1_u8(us);
us += pitch;
d12 = vld1_u8(us);
us += pitch;
d14 = vld1_u8(us);
us += pitch;
d16 = vld1_u8(us);
us += pitch;
d18 = vld1_u8(us);
us += pitch;
d20 = vld1_u8(us);
vs = v - 4;
d7 = vld1_u8(vs);
vs += pitch;
d9 = vld1_u8(vs);
vs += pitch;
d11 = vld1_u8(vs);
vs += pitch;
d13 = vld1_u8(vs);
vs += pitch;
d15 = vld1_u8(vs);
vs += pitch;
d17 = vld1_u8(vs);
vs += pitch;
d19 = vld1_u8(vs);
vs += pitch;
d21 = vld1_u8(vs);
q3 = vcombine_u8(d6, d7);
q4 = vcombine_u8(d8, d9);
q5 = vcombine_u8(d10, d11);
q6 = vcombine_u8(d12, d13);
q7 = vcombine_u8(d14, d15);
q8 = vcombine_u8(d16, d17);
q9 = vcombine_u8(d18, d19);
q10 = vcombine_u8(d20, d21);
q2tmp0 = vtrnq_u32(vreinterpretq_u32_u8(q3), vreinterpretq_u32_u8(q7));
q2tmp1 = vtrnq_u32(vreinterpretq_u32_u8(q4), vreinterpretq_u32_u8(q8));
q2tmp2 = vtrnq_u32(vreinterpretq_u32_u8(q5), vreinterpretq_u32_u8(q9));
q2tmp3 = vtrnq_u32(vreinterpretq_u32_u8(q6), vreinterpretq_u32_u8(q10));
q2tmp4 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[0]),
vreinterpretq_u16_u32(q2tmp2.val[0]));
q2tmp5 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[0]),
vreinterpretq_u16_u32(q2tmp3.val[0]));
q2tmp6 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp0.val[1]),
vreinterpretq_u16_u32(q2tmp2.val[1]));
q2tmp7 = vtrnq_u16(vreinterpretq_u16_u32(q2tmp1.val[1]),
vreinterpretq_u16_u32(q2tmp3.val[1]));
q2tmp8 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[0]),
vreinterpretq_u8_u16(q2tmp5.val[0]));
q2tmp9 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp4.val[1]),
vreinterpretq_u8_u16(q2tmp5.val[1]));
q2tmp10 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[0]),
vreinterpretq_u8_u16(q2tmp7.val[0]));
q2tmp11 = vtrnq_u8(vreinterpretq_u8_u16(q2tmp6.val[1]),
vreinterpretq_u8_u16(q2tmp7.val[1]));
q3 = q2tmp8.val[0];
q4 = q2tmp8.val[1];
q5 = q2tmp9.val[0];
q6 = q2tmp9.val[1];
q7 = q2tmp10.val[0];
q8 = q2tmp10.val[1];
q9 = q2tmp11.val[0];
q10 = q2tmp11.val[1];
vp8_loop_filter_neon(qblimit, qlimit, qthresh, q3, q4, q5, q6, q7, q8, q9,
q10, &q5, &q6, &q7, &q8);
q4ResultL.val[0] = vget_low_u8(q5); // d10
q4ResultL.val[1] = vget_low_u8(q6); // d12
q4ResultL.val[2] = vget_low_u8(q7); // d14
q4ResultL.val[3] = vget_low_u8(q8); // d16
ud = u - 2;
write_4x8(ud, pitch, q4ResultL);
q4ResultH.val[0] = vget_high_u8(q5); // d11
q4ResultH.val[1] = vget_high_u8(q6); // d13
q4ResultH.val[2] = vget_high_u8(q7); // d15
q4ResultH.val[3] = vget_high_u8(q8); // d17
vd = v - 2;
write_4x8(vd, pitch, q4ResultH);
}
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