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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_rtcd.h"
#include "vpx_ports/arm.h"
#ifdef VPX_INCOMPATIBLE_GCC
static INLINE void write_2x4(unsigned char *dst, int pitch,
const uint8x8x2_t result) {
/*
* uint8x8x2_t result
00 01 02 03 | 04 05 06 07
10 11 12 13 | 14 15 16 17
---
* after vtrn_u8
00 10 02 12 | 04 14 06 16
01 11 03 13 | 05 15 07 17
*/
const uint8x8x2_t r01_u8 = vtrn_u8(result.val[0], result.val[1]);
const uint16x4_t x_0_4 = vreinterpret_u16_u8(r01_u8.val[0]);
const uint16x4_t x_1_5 = vreinterpret_u16_u8(r01_u8.val[1]);
vst1_lane_u16((uint16_t *)dst, x_0_4, 0);
dst += pitch;
vst1_lane_u16((uint16_t *)dst, x_1_5, 0);
dst += pitch;
vst1_lane_u16((uint16_t *)dst, x_0_4, 1);
dst += pitch;
vst1_lane_u16((uint16_t *)dst, x_1_5, 1);
dst += pitch;
vst1_lane_u16((uint16_t *)dst, x_0_4, 2);
dst += pitch;
vst1_lane_u16((uint16_t *)dst, x_1_5, 2);
dst += pitch;
vst1_lane_u16((uint16_t *)dst, x_0_4, 3);
dst += pitch;
vst1_lane_u16((uint16_t *)dst, x_1_5, 3);
}
static INLINE void write_2x8(unsigned char *dst, int pitch,
const uint8x8x2_t result,
const uint8x8x2_t result2) {
write_2x4(dst, pitch, result);
dst += pitch * 8;
write_2x4(dst, pitch, result2);
}
#else
static INLINE void write_2x8(unsigned char *dst, int pitch,
const uint8x8x2_t result,
const uint8x8x2_t result2) {
vst2_lane_u8(dst, result, 0);
dst += pitch;
vst2_lane_u8(dst, result, 1);
dst += pitch;
vst2_lane_u8(dst, result, 2);
dst += pitch;
vst2_lane_u8(dst, result, 3);
dst += pitch;
vst2_lane_u8(dst, result, 4);
dst += pitch;
vst2_lane_u8(dst, result, 5);
dst += pitch;
vst2_lane_u8(dst, result, 6);
dst += pitch;
vst2_lane_u8(dst, result, 7);
dst += pitch;
vst2_lane_u8(dst, result2, 0);
dst += pitch;
vst2_lane_u8(dst, result2, 1);
dst += pitch;
vst2_lane_u8(dst, result2, 2);
dst += pitch;
vst2_lane_u8(dst, result2, 3);
dst += pitch;
vst2_lane_u8(dst, result2, 4);
dst += pitch;
vst2_lane_u8(dst, result2, 5);
dst += pitch;
vst2_lane_u8(dst, result2, 6);
dst += pitch;
vst2_lane_u8(dst, result2, 7);
}
#endif // VPX_INCOMPATIBLE_GCC
#ifdef VPX_INCOMPATIBLE_GCC
static INLINE uint8x8x4_t read_4x8(unsigned char *src, int pitch) {
uint8x8x4_t x;
const uint8x8_t a = vld1_u8(src);
const uint8x8_t b = vld1_u8(src + pitch * 1);
const uint8x8_t c = vld1_u8(src + pitch * 2);
const uint8x8_t d = vld1_u8(src + pitch * 3);
const uint8x8_t e = vld1_u8(src + pitch * 4);
const uint8x8_t f = vld1_u8(src + pitch * 5);
const uint8x8_t g = vld1_u8(src + pitch * 6);
const uint8x8_t h = vld1_u8(src + pitch * 7);
const uint32x2x2_t r04_u32 =
vtrn_u32(vreinterpret_u32_u8(a), vreinterpret_u32_u8(e));
const uint32x2x2_t r15_u32 =
vtrn_u32(vreinterpret_u32_u8(b), vreinterpret_u32_u8(f));
const uint32x2x2_t r26_u32 =
vtrn_u32(vreinterpret_u32_u8(c), vreinterpret_u32_u8(g));
const uint32x2x2_t r37_u32 =
vtrn_u32(vreinterpret_u32_u8(d), vreinterpret_u32_u8(h));
const uint16x4x2_t r02_u16 = vtrn_u16(vreinterpret_u16_u32(r04_u32.val[0]),
vreinterpret_u16_u32(r26_u32.val[0]));
const uint16x4x2_t r13_u16 = vtrn_u16(vreinterpret_u16_u32(r15_u32.val[0]),
vreinterpret_u16_u32(r37_u32.val[0]));
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]));
/*
* after vtrn_u32
00 01 02 03 | 40 41 42 43
10 11 12 13 | 50 51 52 53
20 21 22 23 | 60 61 62 63
30 31 32 33 | 70 71 72 73
---
* after vtrn_u16
00 01 20 21 | 40 41 60 61
02 03 22 23 | 42 43 62 63
10 11 30 31 | 50 51 70 71
12 13 32 33 | 52 52 72 73
00 01 20 21 | 40 41 60 61
10 11 30 31 | 50 51 70 71
02 03 22 23 | 42 43 62 63
12 13 32 33 | 52 52 72 73
---
* after vtrn_u8
00 10 20 30 | 40 50 60 70
01 11 21 31 | 41 51 61 71
02 12 22 32 | 42 52 62 72
03 13 23 33 | 43 53 63 73
*/
x.val[0] = r01_u8.val[0];
x.val[1] = r01_u8.val[1];
x.val[2] = r23_u8.val[0];
x.val[3] = r23_u8.val[1];
return x;
}
#else
static INLINE uint8x8x4_t read_4x8(unsigned char *src, int pitch) {
uint8x8x4_t x;
x.val[0] = x.val[1] = x.val[2] = x.val[3] = vdup_n_u8(0);
x = vld4_lane_u8(src, x, 0);
src += pitch;
x = vld4_lane_u8(src, x, 1);
src += pitch;
x = vld4_lane_u8(src, x, 2);
src += pitch;
x = vld4_lane_u8(src, x, 3);
src += pitch;
x = vld4_lane_u8(src, x, 4);
src += pitch;
x = vld4_lane_u8(src, x, 5);
src += pitch;
x = vld4_lane_u8(src, x, 6);
src += pitch;
x = vld4_lane_u8(src, x, 7);
return x;
}
#endif // VPX_INCOMPATIBLE_GCC
static INLINE void vp8_loop_filter_simple_vertical_edge_neon(
unsigned char *s, int p, const unsigned char *blimit) {
unsigned char *src1;
uint8x16_t qblimit, q0u8;
uint8x16_t q3u8, q4u8, q5u8, q6u8, q7u8, q11u8, q12u8, q14u8, q15u8;
int16x8_t q2s16, q13s16, q11s16;
int8x8_t d28s8, d29s8;
int8x16_t q2s8, q3s8, q10s8, q11s8, q14s8;
uint8x8x4_t d0u8x4; // d6, d7, d8, d9
uint8x8x4_t d1u8x4; // d10, d11, d12, d13
uint8x8x2_t d2u8x2; // d12, d13
uint8x8x2_t d3u8x2; // d14, d15
qblimit = vdupq_n_u8(*blimit);
src1 = s - 2;
d0u8x4 = read_4x8(src1, p);
src1 += p * 8;
d1u8x4 = read_4x8(src1, p);
q3u8 = vcombine_u8(d0u8x4.val[0], d1u8x4.val[0]); // d6 d10
q4u8 = vcombine_u8(d0u8x4.val[2], d1u8x4.val[2]); // d8 d12
q5u8 = vcombine_u8(d0u8x4.val[1], d1u8x4.val[1]); // d7 d11
q6u8 = vcombine_u8(d0u8x4.val[3], d1u8x4.val[3]); // d9 d13
q15u8 = vabdq_u8(q5u8, q4u8);
q14u8 = vabdq_u8(q3u8, q6u8);
q15u8 = vqaddq_u8(q15u8, q15u8);
q14u8 = vshrq_n_u8(q14u8, 1);
q0u8 = vdupq_n_u8(0x80);
q11s16 = vdupq_n_s16(3);
q15u8 = vqaddq_u8(q15u8, q14u8);
q3u8 = veorq_u8(q3u8, q0u8);
q4u8 = veorq_u8(q4u8, q0u8);
q5u8 = veorq_u8(q5u8, q0u8);
q6u8 = veorq_u8(q6u8, q0u8);
q15u8 = vcgeq_u8(qblimit, q15u8);
q2s16 = vsubl_s8(vget_low_s8(vreinterpretq_s8_u8(q4u8)),
vget_low_s8(vreinterpretq_s8_u8(q5u8)));
q13s16 = vsubl_s8(vget_high_s8(vreinterpretq_s8_u8(q4u8)),
vget_high_s8(vreinterpretq_s8_u8(q5u8)));
q14s8 = vqsubq_s8(vreinterpretq_s8_u8(q3u8), vreinterpretq_s8_u8(q6u8));
q2s16 = vmulq_s16(q2s16, q11s16);
q13s16 = vmulq_s16(q13s16, q11s16);
q11u8 = vdupq_n_u8(3);
q12u8 = vdupq_n_u8(4);
q2s16 = vaddw_s8(q2s16, vget_low_s8(q14s8));
q13s16 = vaddw_s8(q13s16, vget_high_s8(q14s8));
d28s8 = vqmovn_s16(q2s16);
d29s8 = vqmovn_s16(q13s16);
q14s8 = vcombine_s8(d28s8, d29s8);
q14s8 = vandq_s8(q14s8, vreinterpretq_s8_u8(q15u8));
q2s8 = vqaddq_s8(q14s8, vreinterpretq_s8_u8(q11u8));
q3s8 = vqaddq_s8(q14s8, vreinterpretq_s8_u8(q12u8));
q2s8 = vshrq_n_s8(q2s8, 3);
q14s8 = vshrq_n_s8(q3s8, 3);
q11s8 = vqaddq_s8(vreinterpretq_s8_u8(q5u8), q2s8);
q10s8 = vqsubq_s8(vreinterpretq_s8_u8(q4u8), q14s8);
q6u8 = veorq_u8(vreinterpretq_u8_s8(q11s8), q0u8);
q7u8 = veorq_u8(vreinterpretq_u8_s8(q10s8), q0u8);
d2u8x2.val[0] = vget_low_u8(q6u8); // d12
d2u8x2.val[1] = vget_low_u8(q7u8); // d14
d3u8x2.val[0] = vget_high_u8(q6u8); // d13
d3u8x2.val[1] = vget_high_u8(q7u8); // d15
src1 = s - 1;
write_2x8(src1, p, d2u8x2, d3u8x2);
}
void vp8_loop_filter_bvs_neon(unsigned char *y_ptr, int y_stride,
const unsigned char *blimit) {
y_ptr += 4;
vp8_loop_filter_simple_vertical_edge_neon(y_ptr, y_stride, blimit);
y_ptr += 4;
vp8_loop_filter_simple_vertical_edge_neon(y_ptr, y_stride, blimit);
y_ptr += 4;
vp8_loop_filter_simple_vertical_edge_neon(y_ptr, y_stride, blimit);
return;
}
void vp8_loop_filter_mbvs_neon(unsigned char *y_ptr, int y_stride,
const unsigned char *blimit) {
vp8_loop_filter_simple_vertical_edge_neon(y_ptr, y_stride, blimit);
return;
}
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