ref: 9a780fa7db79b709787a9ca56fc324a118158da7
dir: /vp8/common/arm/neon/sixtappredict_neon.c/
/*
* 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 <string.h>
#include "./vpx_config.h"
#include "vpx_ports/mem.h"
static const int8_t vp8_sub_pel_filters[8][8] = {
{ 0, 0, 128, 0, 0, 0, 0, 0 }, /* note that 1/8 pel positionyys are */
{ 0, -6, 123, 12, -1, 0, 0, 0 }, /* just as per alpha -0.5 bicubic */
{ 2, -11, 108, 36, -8, 1, 0, 0 }, /* New 1/4 pel 6 tap filter */
{ 0, -9, 93, 50, -6, 0, 0, 0 },
{ 3, -16, 77, 77, -16, 3, 0, 0 }, /* New 1/2 pel 6 tap filter */
{ 0, -6, 50, 93, -9, 0, 0, 0 },
{ 1, -8, 36, 108, -11, 2, 0, 0 }, /* New 1/4 pel 6 tap filter */
{ 0, -1, 12, 123, -6, 0, 0, 0 },
};
// This table is derived from vp8/common/filter.c:vp8_sub_pel_filters.
// Apply abs() to all the values. Elements 0, 2, 3, and 5 are always positive.
// Elements 1 and 4 are either 0 or negative. The code accounts for this with
// multiply/accumulates which either add or subtract as needed. The other
// functions will be updated to use this table later.
// It is also expanded to 8 elements to allow loading into 64 bit neon
// registers.
static const uint8_t abs_filters[8][8] = {
{ 0, 0, 128, 0, 0, 0, 0, 0 }, { 0, 6, 123, 12, 1, 0, 0, 0 },
{ 2, 11, 108, 36, 8, 1, 0, 0 }, { 0, 9, 93, 50, 6, 0, 0, 0 },
{ 3, 16, 77, 77, 16, 3, 0, 0 }, { 0, 6, 50, 93, 9, 0, 0, 0 },
{ 1, 8, 36, 108, 11, 2, 0, 0 }, { 0, 1, 12, 123, 6, 0, 0, 0 },
};
static INLINE uint8x8_t load_and_shift(const unsigned char *a) {
return vreinterpret_u8_u64(vshl_n_u64(vreinterpret_u64_u8(vld1_u8(a)), 32));
}
static INLINE void store4x4(unsigned char *dst, int dst_stride,
const uint8x8_t a0, const uint8x8_t a1) {
if (!((uintptr_t)dst & 0x3) && !(dst_stride & 0x3)) {
vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(a0), 0);
dst += dst_stride;
vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(a0), 1);
dst += dst_stride;
vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(a1), 0);
dst += dst_stride;
vst1_lane_u32((uint32_t *)dst, vreinterpret_u32_u8(a1), 1);
} else {
// Store to the aligned local buffer and memcpy instead of vget_lane_u8
// which is really really slow.
uint32_t output_buffer[4];
vst1_lane_u32(output_buffer, vreinterpret_u32_u8(a0), 0);
vst1_lane_u32(output_buffer + 1, vreinterpret_u32_u8(a0), 1);
vst1_lane_u32(output_buffer + 2, vreinterpret_u32_u8(a1), 0);
vst1_lane_u32(output_buffer + 3, vreinterpret_u32_u8(a1), 1);
memcpy(dst, output_buffer, 4);
dst += dst_stride;
memcpy(dst, output_buffer + 1, 4);
dst += dst_stride;
memcpy(dst, output_buffer + 2, 4);
dst += dst_stride;
memcpy(dst, output_buffer + 3, 4);
}
}
static INLINE void filter_add_accumulate(const uint8x16_t a, const uint8x16_t b,
const uint8x8_t filter, uint16x8_t *c,
uint16x8_t *d) {
const uint32x2x2_t a_shuf = vzip_u32(vreinterpret_u32_u8(vget_low_u8(a)),
vreinterpret_u32_u8(vget_high_u8(a)));
const uint32x2x2_t b_shuf = vzip_u32(vreinterpret_u32_u8(vget_low_u8(b)),
vreinterpret_u32_u8(vget_high_u8(b)));
*c = vmlal_u8(*c, vreinterpret_u8_u32(a_shuf.val[0]), filter);
*d = vmlal_u8(*d, vreinterpret_u8_u32(b_shuf.val[0]), filter);
}
static INLINE void filter_sub_accumulate(const uint8x16_t a, const uint8x16_t b,
const uint8x8_t filter, uint16x8_t *c,
uint16x8_t *d) {
const uint32x2x2_t a_shuf = vzip_u32(vreinterpret_u32_u8(vget_low_u8(a)),
vreinterpret_u32_u8(vget_high_u8(a)));
const uint32x2x2_t b_shuf = vzip_u32(vreinterpret_u32_u8(vget_low_u8(b)),
vreinterpret_u32_u8(vget_high_u8(b)));
*c = vmlsl_u8(*c, vreinterpret_u8_u32(a_shuf.val[0]), filter);
*d = vmlsl_u8(*d, vreinterpret_u8_u32(b_shuf.val[0]), filter);
}
static INLINE void yonly4x4(const unsigned char *src, int src_stride,
int filter_offset, unsigned char *dst,
int dst_stride) {
uint8x8_t a0, a1, a2, a3, a4, a5, a6, a7, a8;
uint8x8_t b0, b1, b2, b3, b4, b5, b6, b7, b8;
uint16x8_t c0, c1, c2, c3;
int16x8_t d0, d1;
uint8x8_t e0, e1;
const uint8x8_t filter = vld1_u8(abs_filters[filter_offset]);
const uint8x8_t filter0 = vdup_lane_u8(filter, 0);
const uint8x8_t filter1 = vdup_lane_u8(filter, 1);
const uint8x8_t filter2 = vdup_lane_u8(filter, 2);
const uint8x8_t filter3 = vdup_lane_u8(filter, 3);
const uint8x8_t filter4 = vdup_lane_u8(filter, 4);
const uint8x8_t filter5 = vdup_lane_u8(filter, 5);
src -= src_stride * 2;
// Shift the even rows to allow using 'vext' to combine the vectors. armv8
// has vcopy_lane which would be interesting. This started as just a
// horrible workaround for clang adding alignment hints to 32bit loads:
// https://llvm.org/bugs/show_bug.cgi?id=24421
// But it turns out it almost identical to casting the loads.
a0 = load_and_shift(src);
src += src_stride;
a1 = vld1_u8(src);
src += src_stride;
a2 = load_and_shift(src);
src += src_stride;
a3 = vld1_u8(src);
src += src_stride;
a4 = load_and_shift(src);
src += src_stride;
a5 = vld1_u8(src);
src += src_stride;
a6 = load_and_shift(src);
src += src_stride;
a7 = vld1_u8(src);
src += src_stride;
a8 = vld1_u8(src);
// Combine the rows so we can operate on 8 at a time.
b0 = vext_u8(a0, a1, 4);
b2 = vext_u8(a2, a3, 4);
b4 = vext_u8(a4, a5, 4);
b6 = vext_u8(a6, a7, 4);
b8 = a8;
// To keep with the 8-at-a-time theme, combine *alternate* rows. This
// allows combining the odd rows with the even.
b1 = vext_u8(b0, b2, 4);
b3 = vext_u8(b2, b4, 4);
b5 = vext_u8(b4, b6, 4);
b7 = vext_u8(b6, b8, 4);
// Multiply and expand to 16 bits.
c0 = vmull_u8(b0, filter0);
c1 = vmull_u8(b2, filter0);
c2 = vmull_u8(b5, filter5);
c3 = vmull_u8(b7, filter5);
// Multiply, subtract and accumulate for filters 1 and 4 (the negative
// ones).
c0 = vmlsl_u8(c0, b4, filter4);
c1 = vmlsl_u8(c1, b6, filter4);
c2 = vmlsl_u8(c2, b1, filter1);
c3 = vmlsl_u8(c3, b3, filter1);
// Add more positive ones. vmlal should really return a signed type.
// It's doing signed math internally, as evidenced by the fact we can do
// subtractions followed by more additions. Ideally we could use
// vqmlal/sl but that instruction doesn't exist. Might be able to
// shoehorn vqdmlal/vqdmlsl in here but it would take some effort.
c0 = vmlal_u8(c0, b2, filter2);
c1 = vmlal_u8(c1, b4, filter2);
c2 = vmlal_u8(c2, b3, filter3);
c3 = vmlal_u8(c3, b5, filter3);
// Use signed saturation math because vmlsl may have left some negative
// numbers in there.
d0 = vqaddq_s16(vreinterpretq_s16_u16(c2), vreinterpretq_s16_u16(c0));
d1 = vqaddq_s16(vreinterpretq_s16_u16(c3), vreinterpretq_s16_u16(c1));
// Use signed again because numbers like -200 need to be saturated to 0.
e0 = vqrshrun_n_s16(d0, 7);
e1 = vqrshrun_n_s16(d1, 7);
store4x4(dst, dst_stride, e0, e1);
}
void vp8_sixtap_predict4x4_neon(unsigned char *src_ptr, int src_pixels_per_line,
int xoffset, int yoffset,
unsigned char *dst_ptr, int dst_pitch) {
uint8x16_t s0, s1, s2, s3, s4;
uint64x2_t s01, s23;
// Variables to hold src[] elements for the given filter[]
uint8x8_t s0_f5, s1_f5, s2_f5, s3_f5, s4_f5;
uint8x8_t s4_f1, s4_f2, s4_f3, s4_f4;
uint8x16_t s01_f0, s23_f0;
uint64x2_t s01_f3, s23_f3;
uint32x2x2_t s01_f3_q, s23_f3_q, s01_f5_q, s23_f5_q;
// Accumulator variables.
uint16x8_t d0123, d4567, d89;
uint16x8_t d0123_a, d4567_a, d89_a;
int16x8_t e0123, e4567, e89;
// Second pass intermediates.
uint8x8_t b0, b1, b2, b3, b4, b5, b6, b7, b8;
uint16x8_t c0, c1, c2, c3;
int16x8_t d0, d1;
uint8x8_t e0, e1;
uint8x8_t filter, filter0, filter1, filter2, filter3, filter4, filter5;
if (xoffset == 0) { // Second pass only.
yonly4x4(src_ptr, src_pixels_per_line, yoffset, dst_ptr, dst_pitch);
return;
}
if (yoffset == 0) { // First pass only.
src_ptr -= 2;
} else { // Add context for the second pass. 2 extra lines on top.
src_ptr -= 2 + (src_pixels_per_line * 2);
}
filter = vld1_u8(abs_filters[xoffset]);
filter0 = vdup_lane_u8(filter, 0);
filter1 = vdup_lane_u8(filter, 1);
filter2 = vdup_lane_u8(filter, 2);
filter3 = vdup_lane_u8(filter, 3);
filter4 = vdup_lane_u8(filter, 4);
filter5 = vdup_lane_u8(filter, 5);
// 2 bytes of context, 4 bytes of src values, 3 bytes of context, 7 bytes of
// garbage. So much effort for that last single bit.
// The low values of each pair are for filter0.
s0 = vld1q_u8(src_ptr);
src_ptr += src_pixels_per_line;
s1 = vld1q_u8(src_ptr);
src_ptr += src_pixels_per_line;
s2 = vld1q_u8(src_ptr);
src_ptr += src_pixels_per_line;
s3 = vld1q_u8(src_ptr);
src_ptr += src_pixels_per_line;
// Shift to extract values for filter[5]
// If src[] is 0, this puts:
// 3 4 5 6 7 8 9 10 in s0_f5
// Can't use vshr.u64 because it crosses the double word boundary.
s0_f5 = vext_u8(vget_low_u8(s0), vget_high_u8(s0), 5);
s1_f5 = vext_u8(vget_low_u8(s1), vget_high_u8(s1), 5);
s2_f5 = vext_u8(vget_low_u8(s2), vget_high_u8(s2), 5);
s3_f5 = vext_u8(vget_low_u8(s3), vget_high_u8(s3), 5);
s01_f0 = vcombine_u8(vget_low_u8(s0), vget_low_u8(s1));
s23_f0 = vcombine_u8(vget_low_u8(s2), vget_low_u8(s3));
s01_f5_q = vzip_u32(vreinterpret_u32_u8(s0_f5), vreinterpret_u32_u8(s1_f5));
s23_f5_q = vzip_u32(vreinterpret_u32_u8(s2_f5), vreinterpret_u32_u8(s3_f5));
d0123 = vmull_u8(vreinterpret_u8_u32(s01_f5_q.val[0]), filter5);
d4567 = vmull_u8(vreinterpret_u8_u32(s23_f5_q.val[0]), filter5);
// Keep original src data as 64 bits to simplify shifting and extracting.
s01 = vreinterpretq_u64_u8(s01_f0);
s23 = vreinterpretq_u64_u8(s23_f0);
// 3 4 5 6 * filter0
filter_add_accumulate(s01_f0, s23_f0, filter0, &d0123, &d4567);
// Shift over one to use -1, 0, 1, 2 for filter1
// -1 0 1 2 * filter1
filter_sub_accumulate(vreinterpretq_u8_u64(vshrq_n_u64(s01, 8)),
vreinterpretq_u8_u64(vshrq_n_u64(s23, 8)), filter1,
&d0123, &d4567);
// 2 3 4 5 * filter4
filter_sub_accumulate(vreinterpretq_u8_u64(vshrq_n_u64(s01, 32)),
vreinterpretq_u8_u64(vshrq_n_u64(s23, 32)), filter4,
&d0123, &d4567);
// 0 1 2 3 * filter2
filter_add_accumulate(vreinterpretq_u8_u64(vshrq_n_u64(s01, 16)),
vreinterpretq_u8_u64(vshrq_n_u64(s23, 16)), filter2,
&d0123, &d4567);
// 1 2 3 4 * filter3
s01_f3 = vshrq_n_u64(s01, 24);
s23_f3 = vshrq_n_u64(s23, 24);
s01_f3_q = vzip_u32(vreinterpret_u32_u64(vget_low_u64(s01_f3)),
vreinterpret_u32_u64(vget_high_u64(s01_f3)));
s23_f3_q = vzip_u32(vreinterpret_u32_u64(vget_low_u64(s23_f3)),
vreinterpret_u32_u64(vget_high_u64(s23_f3)));
// Accumulate into different registers so it can use saturated addition.
d0123_a = vmull_u8(vreinterpret_u8_u32(s01_f3_q.val[0]), filter3);
d4567_a = vmull_u8(vreinterpret_u8_u32(s23_f3_q.val[0]), filter3);
e0123 =
vqaddq_s16(vreinterpretq_s16_u16(d0123), vreinterpretq_s16_u16(d0123_a));
e4567 =
vqaddq_s16(vreinterpretq_s16_u16(d4567), vreinterpretq_s16_u16(d4567_a));
// Shift and narrow.
b0 = vqrshrun_n_s16(e0123, 7);
b2 = vqrshrun_n_s16(e4567, 7);
if (yoffset == 0) { // firstpass_filter4x4_only
store4x4(dst_ptr, dst_pitch, b0, b2);
return;
}
// Load additional context when doing both filters.
s0 = vld1q_u8(src_ptr);
src_ptr += src_pixels_per_line;
s1 = vld1q_u8(src_ptr);
src_ptr += src_pixels_per_line;
s2 = vld1q_u8(src_ptr);
src_ptr += src_pixels_per_line;
s3 = vld1q_u8(src_ptr);
src_ptr += src_pixels_per_line;
s4 = vld1q_u8(src_ptr);
s0_f5 = vext_u8(vget_low_u8(s0), vget_high_u8(s0), 5);
s1_f5 = vext_u8(vget_low_u8(s1), vget_high_u8(s1), 5);
s2_f5 = vext_u8(vget_low_u8(s2), vget_high_u8(s2), 5);
s3_f5 = vext_u8(vget_low_u8(s3), vget_high_u8(s3), 5);
s4_f5 = vext_u8(vget_low_u8(s4), vget_high_u8(s4), 5);
// 3 4 5 6 * filter0
s01_f0 = vcombine_u8(vget_low_u8(s0), vget_low_u8(s1));
s23_f0 = vcombine_u8(vget_low_u8(s2), vget_low_u8(s3));
s01_f5_q = vzip_u32(vreinterpret_u32_u8(s0_f5), vreinterpret_u32_u8(s1_f5));
s23_f5_q = vzip_u32(vreinterpret_u32_u8(s2_f5), vreinterpret_u32_u8(s3_f5));
// But this time instead of 16 pixels to filter, there are 20. So an extra
// run with a doubleword register.
d0123 = vmull_u8(vreinterpret_u8_u32(s01_f5_q.val[0]), filter5);
d4567 = vmull_u8(vreinterpret_u8_u32(s23_f5_q.val[0]), filter5);
d89 = vmull_u8(s4_f5, filter5);
// Save a copy as u64 for shifting.
s01 = vreinterpretq_u64_u8(s01_f0);
s23 = vreinterpretq_u64_u8(s23_f0);
filter_add_accumulate(s01_f0, s23_f0, filter0, &d0123, &d4567);
d89 = vmlal_u8(d89, vget_low_u8(s4), filter0);
filter_sub_accumulate(vreinterpretq_u8_u64(vshrq_n_u64(s01, 8)),
vreinterpretq_u8_u64(vshrq_n_u64(s23, 8)), filter1,
&d0123, &d4567);
s4_f1 = vext_u8(vget_low_u8(s4), vget_high_u8(s4), 1);
d89 = vmlsl_u8(d89, s4_f1, filter1);
filter_sub_accumulate(vreinterpretq_u8_u64(vshrq_n_u64(s01, 32)),
vreinterpretq_u8_u64(vshrq_n_u64(s23, 32)), filter4,
&d0123, &d4567);
s4_f4 = vext_u8(vget_low_u8(s4), vget_high_u8(s4), 4);
d89 = vmlsl_u8(d89, s4_f4, filter4);
filter_add_accumulate(vreinterpretq_u8_u64(vshrq_n_u64(s01, 16)),
vreinterpretq_u8_u64(vshrq_n_u64(s23, 16)), filter2,
&d0123, &d4567);
s4_f2 = vext_u8(vget_low_u8(s4), vget_high_u8(s4), 2);
d89 = vmlal_u8(d89, s4_f2, filter2);
s01_f3 = vshrq_n_u64(s01, 24);
s23_f3 = vshrq_n_u64(s23, 24);
s01_f3_q = vzip_u32(vreinterpret_u32_u64(vget_low_u64(s01_f3)),
vreinterpret_u32_u64(vget_high_u64(s01_f3)));
s23_f3_q = vzip_u32(vreinterpret_u32_u64(vget_low_u64(s23_f3)),
vreinterpret_u32_u64(vget_high_u64(s23_f3)));
s4_f3 = vext_u8(vget_low_u8(s4), vget_high_u8(s4), 3);
d0123_a = vmull_u8(vreinterpret_u8_u32(s01_f3_q.val[0]), filter3);
d4567_a = vmull_u8(vreinterpret_u8_u32(s23_f3_q.val[0]), filter3);
d89_a = vmull_u8(s4_f3, filter3);
e0123 =
vqaddq_s16(vreinterpretq_s16_u16(d0123), vreinterpretq_s16_u16(d0123_a));
e4567 =
vqaddq_s16(vreinterpretq_s16_u16(d4567), vreinterpretq_s16_u16(d4567_a));
e89 = vqaddq_s16(vreinterpretq_s16_u16(d89), vreinterpretq_s16_u16(d89_a));
b4 = vqrshrun_n_s16(e0123, 7);
b6 = vqrshrun_n_s16(e4567, 7);
b8 = vqrshrun_n_s16(e89, 7);
// Second pass: 4x4
filter = vld1_u8(abs_filters[yoffset]);
filter0 = vdup_lane_u8(filter, 0);
filter1 = vdup_lane_u8(filter, 1);
filter2 = vdup_lane_u8(filter, 2);
filter3 = vdup_lane_u8(filter, 3);
filter4 = vdup_lane_u8(filter, 4);
filter5 = vdup_lane_u8(filter, 5);
b1 = vext_u8(b0, b2, 4);
b3 = vext_u8(b2, b4, 4);
b5 = vext_u8(b4, b6, 4);
b7 = vext_u8(b6, b8, 4);
c0 = vmull_u8(b0, filter0);
c1 = vmull_u8(b2, filter0);
c2 = vmull_u8(b5, filter5);
c3 = vmull_u8(b7, filter5);
c0 = vmlsl_u8(c0, b4, filter4);
c1 = vmlsl_u8(c1, b6, filter4);
c2 = vmlsl_u8(c2, b1, filter1);
c3 = vmlsl_u8(c3, b3, filter1);
c0 = vmlal_u8(c0, b2, filter2);
c1 = vmlal_u8(c1, b4, filter2);
c2 = vmlal_u8(c2, b3, filter3);
c3 = vmlal_u8(c3, b5, filter3);
d0 = vqaddq_s16(vreinterpretq_s16_u16(c2), vreinterpretq_s16_u16(c0));
d1 = vqaddq_s16(vreinterpretq_s16_u16(c3), vreinterpretq_s16_u16(c1));
e0 = vqrshrun_n_s16(d0, 7);
e1 = vqrshrun_n_s16(d1, 7);
store4x4(dst_ptr, dst_pitch, e0, e1);
}
void vp8_sixtap_predict8x4_neon(unsigned char *src_ptr, int src_pixels_per_line,
int xoffset, int yoffset,
unsigned char *dst_ptr, int dst_pitch) {
unsigned char *src;
uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8, d8u8, d9u8;
uint8x8_t d22u8, d23u8, d24u8, d25u8, d26u8;
uint8x8_t d27u8, d28u8, d29u8, d30u8, d31u8;
int8x8_t dtmps8, d0s8, d1s8, d2s8, d3s8, d4s8, d5s8;
uint16x8_t q3u16, q4u16, q5u16, q6u16, q7u16;
uint16x8_t q8u16, q9u16, q10u16, q11u16, q12u16;
int16x8_t q3s16, q4s16, q5s16, q6s16, q7s16;
int16x8_t q8s16, q9s16, q10s16, q11s16, q12s16;
uint8x16_t q3u8, q4u8, q5u8, q6u8, q7u8;
if (xoffset == 0) { // secondpass_filter8x4_only
// load second_pass filter
dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
d0s8 = vdup_lane_s8(dtmps8, 0);
d1s8 = vdup_lane_s8(dtmps8, 1);
d2s8 = vdup_lane_s8(dtmps8, 2);
d3s8 = vdup_lane_s8(dtmps8, 3);
d4s8 = vdup_lane_s8(dtmps8, 4);
d5s8 = vdup_lane_s8(dtmps8, 5);
d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
// load src data
src = src_ptr - src_pixels_per_line * 2;
d22u8 = vld1_u8(src);
src += src_pixels_per_line;
d23u8 = vld1_u8(src);
src += src_pixels_per_line;
d24u8 = vld1_u8(src);
src += src_pixels_per_line;
d25u8 = vld1_u8(src);
src += src_pixels_per_line;
d26u8 = vld1_u8(src);
src += src_pixels_per_line;
d27u8 = vld1_u8(src);
src += src_pixels_per_line;
d28u8 = vld1_u8(src);
src += src_pixels_per_line;
d29u8 = vld1_u8(src);
src += src_pixels_per_line;
d30u8 = vld1_u8(src);
q3u16 = vmull_u8(d22u8, d0u8);
q4u16 = vmull_u8(d23u8, d0u8);
q5u16 = vmull_u8(d24u8, d0u8);
q6u16 = vmull_u8(d25u8, d0u8);
q3u16 = vmlsl_u8(q3u16, d23u8, d1u8);
q4u16 = vmlsl_u8(q4u16, d24u8, d1u8);
q5u16 = vmlsl_u8(q5u16, d25u8, d1u8);
q6u16 = vmlsl_u8(q6u16, d26u8, d1u8);
q3u16 = vmlsl_u8(q3u16, d26u8, d4u8);
q4u16 = vmlsl_u8(q4u16, d27u8, d4u8);
q5u16 = vmlsl_u8(q5u16, d28u8, d4u8);
q6u16 = vmlsl_u8(q6u16, d29u8, d4u8);
q3u16 = vmlal_u8(q3u16, d24u8, d2u8);
q4u16 = vmlal_u8(q4u16, d25u8, d2u8);
q5u16 = vmlal_u8(q5u16, d26u8, d2u8);
q6u16 = vmlal_u8(q6u16, d27u8, d2u8);
q3u16 = vmlal_u8(q3u16, d27u8, d5u8);
q4u16 = vmlal_u8(q4u16, d28u8, d5u8);
q5u16 = vmlal_u8(q5u16, d29u8, d5u8);
q6u16 = vmlal_u8(q6u16, d30u8, d5u8);
q7u16 = vmull_u8(d25u8, d3u8);
q8u16 = vmull_u8(d26u8, d3u8);
q9u16 = vmull_u8(d27u8, d3u8);
q10u16 = vmull_u8(d28u8, d3u8);
q3s16 = vreinterpretq_s16_u16(q3u16);
q4s16 = vreinterpretq_s16_u16(q4u16);
q5s16 = vreinterpretq_s16_u16(q5u16);
q6s16 = vreinterpretq_s16_u16(q6u16);
q7s16 = vreinterpretq_s16_u16(q7u16);
q8s16 = vreinterpretq_s16_u16(q8u16);
q9s16 = vreinterpretq_s16_u16(q9u16);
q10s16 = vreinterpretq_s16_u16(q10u16);
q7s16 = vqaddq_s16(q7s16, q3s16);
q8s16 = vqaddq_s16(q8s16, q4s16);
q9s16 = vqaddq_s16(q9s16, q5s16);
q10s16 = vqaddq_s16(q10s16, q6s16);
d6u8 = vqrshrun_n_s16(q7s16, 7);
d7u8 = vqrshrun_n_s16(q8s16, 7);
d8u8 = vqrshrun_n_s16(q9s16, 7);
d9u8 = vqrshrun_n_s16(q10s16, 7);
vst1_u8(dst_ptr, d6u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d7u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d8u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d9u8);
return;
}
// load first_pass filter
dtmps8 = vld1_s8(vp8_sub_pel_filters[xoffset]);
d0s8 = vdup_lane_s8(dtmps8, 0);
d1s8 = vdup_lane_s8(dtmps8, 1);
d2s8 = vdup_lane_s8(dtmps8, 2);
d3s8 = vdup_lane_s8(dtmps8, 3);
d4s8 = vdup_lane_s8(dtmps8, 4);
d5s8 = vdup_lane_s8(dtmps8, 5);
d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
// First pass: output_height lines x output_width columns (9x4)
if (yoffset == 0) // firstpass_filter4x4_only
src = src_ptr - 2;
else
src = src_ptr - 2 - (src_pixels_per_line * 2);
q3u8 = vld1q_u8(src);
src += src_pixels_per_line;
q4u8 = vld1q_u8(src);
src += src_pixels_per_line;
q5u8 = vld1q_u8(src);
src += src_pixels_per_line;
q6u8 = vld1q_u8(src);
q7u16 = vmull_u8(vget_low_u8(q3u8), d0u8);
q8u16 = vmull_u8(vget_low_u8(q4u8), d0u8);
q9u16 = vmull_u8(vget_low_u8(q5u8), d0u8);
q10u16 = vmull_u8(vget_low_u8(q6u8), d0u8);
d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 1);
d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 1);
d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 1);
d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 1);
q7u16 = vmlsl_u8(q7u16, d28u8, d1u8);
q8u16 = vmlsl_u8(q8u16, d29u8, d1u8);
q9u16 = vmlsl_u8(q9u16, d30u8, d1u8);
q10u16 = vmlsl_u8(q10u16, d31u8, d1u8);
d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 4);
d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 4);
d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 4);
d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 4);
q7u16 = vmlsl_u8(q7u16, d28u8, d4u8);
q8u16 = vmlsl_u8(q8u16, d29u8, d4u8);
q9u16 = vmlsl_u8(q9u16, d30u8, d4u8);
q10u16 = vmlsl_u8(q10u16, d31u8, d4u8);
d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 2);
d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 2);
d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 2);
d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 2);
q7u16 = vmlal_u8(q7u16, d28u8, d2u8);
q8u16 = vmlal_u8(q8u16, d29u8, d2u8);
q9u16 = vmlal_u8(q9u16, d30u8, d2u8);
q10u16 = vmlal_u8(q10u16, d31u8, d2u8);
d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 5);
d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 5);
d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 5);
d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 5);
q7u16 = vmlal_u8(q7u16, d28u8, d5u8);
q8u16 = vmlal_u8(q8u16, d29u8, d5u8);
q9u16 = vmlal_u8(q9u16, d30u8, d5u8);
q10u16 = vmlal_u8(q10u16, d31u8, d5u8);
d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 3);
d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 3);
d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 3);
d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 3);
q3u16 = vmull_u8(d28u8, d3u8);
q4u16 = vmull_u8(d29u8, d3u8);
q5u16 = vmull_u8(d30u8, d3u8);
q6u16 = vmull_u8(d31u8, d3u8);
q3s16 = vreinterpretq_s16_u16(q3u16);
q4s16 = vreinterpretq_s16_u16(q4u16);
q5s16 = vreinterpretq_s16_u16(q5u16);
q6s16 = vreinterpretq_s16_u16(q6u16);
q7s16 = vreinterpretq_s16_u16(q7u16);
q8s16 = vreinterpretq_s16_u16(q8u16);
q9s16 = vreinterpretq_s16_u16(q9u16);
q10s16 = vreinterpretq_s16_u16(q10u16);
q7s16 = vqaddq_s16(q7s16, q3s16);
q8s16 = vqaddq_s16(q8s16, q4s16);
q9s16 = vqaddq_s16(q9s16, q5s16);
q10s16 = vqaddq_s16(q10s16, q6s16);
d22u8 = vqrshrun_n_s16(q7s16, 7);
d23u8 = vqrshrun_n_s16(q8s16, 7);
d24u8 = vqrshrun_n_s16(q9s16, 7);
d25u8 = vqrshrun_n_s16(q10s16, 7);
if (yoffset == 0) { // firstpass_filter8x4_only
vst1_u8(dst_ptr, d22u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d23u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d24u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d25u8);
return;
}
// First Pass on rest 5-line data
src += src_pixels_per_line;
q3u8 = vld1q_u8(src);
src += src_pixels_per_line;
q4u8 = vld1q_u8(src);
src += src_pixels_per_line;
q5u8 = vld1q_u8(src);
src += src_pixels_per_line;
q6u8 = vld1q_u8(src);
src += src_pixels_per_line;
q7u8 = vld1q_u8(src);
q8u16 = vmull_u8(vget_low_u8(q3u8), d0u8);
q9u16 = vmull_u8(vget_low_u8(q4u8), d0u8);
q10u16 = vmull_u8(vget_low_u8(q5u8), d0u8);
q11u16 = vmull_u8(vget_low_u8(q6u8), d0u8);
q12u16 = vmull_u8(vget_low_u8(q7u8), d0u8);
d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 1);
d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 1);
d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 1);
d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 1);
d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 1);
q8u16 = vmlsl_u8(q8u16, d27u8, d1u8);
q9u16 = vmlsl_u8(q9u16, d28u8, d1u8);
q10u16 = vmlsl_u8(q10u16, d29u8, d1u8);
q11u16 = vmlsl_u8(q11u16, d30u8, d1u8);
q12u16 = vmlsl_u8(q12u16, d31u8, d1u8);
d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 4);
d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 4);
d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 4);
d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 4);
d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 4);
q8u16 = vmlsl_u8(q8u16, d27u8, d4u8);
q9u16 = vmlsl_u8(q9u16, d28u8, d4u8);
q10u16 = vmlsl_u8(q10u16, d29u8, d4u8);
q11u16 = vmlsl_u8(q11u16, d30u8, d4u8);
q12u16 = vmlsl_u8(q12u16, d31u8, d4u8);
d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 2);
d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 2);
d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 2);
d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 2);
d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 2);
q8u16 = vmlal_u8(q8u16, d27u8, d2u8);
q9u16 = vmlal_u8(q9u16, d28u8, d2u8);
q10u16 = vmlal_u8(q10u16, d29u8, d2u8);
q11u16 = vmlal_u8(q11u16, d30u8, d2u8);
q12u16 = vmlal_u8(q12u16, d31u8, d2u8);
d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 5);
d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 5);
d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 5);
d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 5);
d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 5);
q8u16 = vmlal_u8(q8u16, d27u8, d5u8);
q9u16 = vmlal_u8(q9u16, d28u8, d5u8);
q10u16 = vmlal_u8(q10u16, d29u8, d5u8);
q11u16 = vmlal_u8(q11u16, d30u8, d5u8);
q12u16 = vmlal_u8(q12u16, d31u8, d5u8);
d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 3);
d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 3);
d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 3);
d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 3);
d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 3);
q3u16 = vmull_u8(d27u8, d3u8);
q4u16 = vmull_u8(d28u8, d3u8);
q5u16 = vmull_u8(d29u8, d3u8);
q6u16 = vmull_u8(d30u8, d3u8);
q7u16 = vmull_u8(d31u8, d3u8);
q3s16 = vreinterpretq_s16_u16(q3u16);
q4s16 = vreinterpretq_s16_u16(q4u16);
q5s16 = vreinterpretq_s16_u16(q5u16);
q6s16 = vreinterpretq_s16_u16(q6u16);
q7s16 = vreinterpretq_s16_u16(q7u16);
q8s16 = vreinterpretq_s16_u16(q8u16);
q9s16 = vreinterpretq_s16_u16(q9u16);
q10s16 = vreinterpretq_s16_u16(q10u16);
q11s16 = vreinterpretq_s16_u16(q11u16);
q12s16 = vreinterpretq_s16_u16(q12u16);
q8s16 = vqaddq_s16(q8s16, q3s16);
q9s16 = vqaddq_s16(q9s16, q4s16);
q10s16 = vqaddq_s16(q10s16, q5s16);
q11s16 = vqaddq_s16(q11s16, q6s16);
q12s16 = vqaddq_s16(q12s16, q7s16);
d26u8 = vqrshrun_n_s16(q8s16, 7);
d27u8 = vqrshrun_n_s16(q9s16, 7);
d28u8 = vqrshrun_n_s16(q10s16, 7);
d29u8 = vqrshrun_n_s16(q11s16, 7);
d30u8 = vqrshrun_n_s16(q12s16, 7);
// Second pass: 8x4
dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
d0s8 = vdup_lane_s8(dtmps8, 0);
d1s8 = vdup_lane_s8(dtmps8, 1);
d2s8 = vdup_lane_s8(dtmps8, 2);
d3s8 = vdup_lane_s8(dtmps8, 3);
d4s8 = vdup_lane_s8(dtmps8, 4);
d5s8 = vdup_lane_s8(dtmps8, 5);
d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
q3u16 = vmull_u8(d22u8, d0u8);
q4u16 = vmull_u8(d23u8, d0u8);
q5u16 = vmull_u8(d24u8, d0u8);
q6u16 = vmull_u8(d25u8, d0u8);
q3u16 = vmlsl_u8(q3u16, d23u8, d1u8);
q4u16 = vmlsl_u8(q4u16, d24u8, d1u8);
q5u16 = vmlsl_u8(q5u16, d25u8, d1u8);
q6u16 = vmlsl_u8(q6u16, d26u8, d1u8);
q3u16 = vmlsl_u8(q3u16, d26u8, d4u8);
q4u16 = vmlsl_u8(q4u16, d27u8, d4u8);
q5u16 = vmlsl_u8(q5u16, d28u8, d4u8);
q6u16 = vmlsl_u8(q6u16, d29u8, d4u8);
q3u16 = vmlal_u8(q3u16, d24u8, d2u8);
q4u16 = vmlal_u8(q4u16, d25u8, d2u8);
q5u16 = vmlal_u8(q5u16, d26u8, d2u8);
q6u16 = vmlal_u8(q6u16, d27u8, d2u8);
q3u16 = vmlal_u8(q3u16, d27u8, d5u8);
q4u16 = vmlal_u8(q4u16, d28u8, d5u8);
q5u16 = vmlal_u8(q5u16, d29u8, d5u8);
q6u16 = vmlal_u8(q6u16, d30u8, d5u8);
q7u16 = vmull_u8(d25u8, d3u8);
q8u16 = vmull_u8(d26u8, d3u8);
q9u16 = vmull_u8(d27u8, d3u8);
q10u16 = vmull_u8(d28u8, d3u8);
q3s16 = vreinterpretq_s16_u16(q3u16);
q4s16 = vreinterpretq_s16_u16(q4u16);
q5s16 = vreinterpretq_s16_u16(q5u16);
q6s16 = vreinterpretq_s16_u16(q6u16);
q7s16 = vreinterpretq_s16_u16(q7u16);
q8s16 = vreinterpretq_s16_u16(q8u16);
q9s16 = vreinterpretq_s16_u16(q9u16);
q10s16 = vreinterpretq_s16_u16(q10u16);
q7s16 = vqaddq_s16(q7s16, q3s16);
q8s16 = vqaddq_s16(q8s16, q4s16);
q9s16 = vqaddq_s16(q9s16, q5s16);
q10s16 = vqaddq_s16(q10s16, q6s16);
d6u8 = vqrshrun_n_s16(q7s16, 7);
d7u8 = vqrshrun_n_s16(q8s16, 7);
d8u8 = vqrshrun_n_s16(q9s16, 7);
d9u8 = vqrshrun_n_s16(q10s16, 7);
vst1_u8(dst_ptr, d6u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d7u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d8u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d9u8);
return;
}
void vp8_sixtap_predict8x8_neon(unsigned char *src_ptr, int src_pixels_per_line,
int xoffset, int yoffset,
unsigned char *dst_ptr, int dst_pitch) {
unsigned char *src, *tmpp;
unsigned char tmp[64];
int i;
uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8, d8u8, d9u8;
uint8x8_t d18u8, d19u8, d20u8, d21u8, d22u8, d23u8, d24u8, d25u8;
uint8x8_t d26u8, d27u8, d28u8, d29u8, d30u8, d31u8;
int8x8_t dtmps8, d0s8, d1s8, d2s8, d3s8, d4s8, d5s8;
uint16x8_t q3u16, q4u16, q5u16, q6u16, q7u16;
uint16x8_t q8u16, q9u16, q10u16, q11u16, q12u16;
int16x8_t q3s16, q4s16, q5s16, q6s16, q7s16;
int16x8_t q8s16, q9s16, q10s16, q11s16, q12s16;
uint8x16_t q3u8, q4u8, q5u8, q6u8, q7u8, q9u8, q10u8, q11u8, q12u8;
if (xoffset == 0) { // secondpass_filter8x8_only
// load second_pass filter
dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
d0s8 = vdup_lane_s8(dtmps8, 0);
d1s8 = vdup_lane_s8(dtmps8, 1);
d2s8 = vdup_lane_s8(dtmps8, 2);
d3s8 = vdup_lane_s8(dtmps8, 3);
d4s8 = vdup_lane_s8(dtmps8, 4);
d5s8 = vdup_lane_s8(dtmps8, 5);
d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
// load src data
src = src_ptr - src_pixels_per_line * 2;
d18u8 = vld1_u8(src);
src += src_pixels_per_line;
d19u8 = vld1_u8(src);
src += src_pixels_per_line;
d20u8 = vld1_u8(src);
src += src_pixels_per_line;
d21u8 = vld1_u8(src);
src += src_pixels_per_line;
d22u8 = vld1_u8(src);
src += src_pixels_per_line;
d23u8 = vld1_u8(src);
src += src_pixels_per_line;
d24u8 = vld1_u8(src);
src += src_pixels_per_line;
d25u8 = vld1_u8(src);
src += src_pixels_per_line;
d26u8 = vld1_u8(src);
src += src_pixels_per_line;
d27u8 = vld1_u8(src);
src += src_pixels_per_line;
d28u8 = vld1_u8(src);
src += src_pixels_per_line;
d29u8 = vld1_u8(src);
src += src_pixels_per_line;
d30u8 = vld1_u8(src);
for (i = 2; i > 0; i--) {
q3u16 = vmull_u8(d18u8, d0u8);
q4u16 = vmull_u8(d19u8, d0u8);
q5u16 = vmull_u8(d20u8, d0u8);
q6u16 = vmull_u8(d21u8, d0u8);
q3u16 = vmlsl_u8(q3u16, d19u8, d1u8);
q4u16 = vmlsl_u8(q4u16, d20u8, d1u8);
q5u16 = vmlsl_u8(q5u16, d21u8, d1u8);
q6u16 = vmlsl_u8(q6u16, d22u8, d1u8);
q3u16 = vmlsl_u8(q3u16, d22u8, d4u8);
q4u16 = vmlsl_u8(q4u16, d23u8, d4u8);
q5u16 = vmlsl_u8(q5u16, d24u8, d4u8);
q6u16 = vmlsl_u8(q6u16, d25u8, d4u8);
q3u16 = vmlal_u8(q3u16, d20u8, d2u8);
q4u16 = vmlal_u8(q4u16, d21u8, d2u8);
q5u16 = vmlal_u8(q5u16, d22u8, d2u8);
q6u16 = vmlal_u8(q6u16, d23u8, d2u8);
q3u16 = vmlal_u8(q3u16, d23u8, d5u8);
q4u16 = vmlal_u8(q4u16, d24u8, d5u8);
q5u16 = vmlal_u8(q5u16, d25u8, d5u8);
q6u16 = vmlal_u8(q6u16, d26u8, d5u8);
q7u16 = vmull_u8(d21u8, d3u8);
q8u16 = vmull_u8(d22u8, d3u8);
q9u16 = vmull_u8(d23u8, d3u8);
q10u16 = vmull_u8(d24u8, d3u8);
q3s16 = vreinterpretq_s16_u16(q3u16);
q4s16 = vreinterpretq_s16_u16(q4u16);
q5s16 = vreinterpretq_s16_u16(q5u16);
q6s16 = vreinterpretq_s16_u16(q6u16);
q7s16 = vreinterpretq_s16_u16(q7u16);
q8s16 = vreinterpretq_s16_u16(q8u16);
q9s16 = vreinterpretq_s16_u16(q9u16);
q10s16 = vreinterpretq_s16_u16(q10u16);
q7s16 = vqaddq_s16(q7s16, q3s16);
q8s16 = vqaddq_s16(q8s16, q4s16);
q9s16 = vqaddq_s16(q9s16, q5s16);
q10s16 = vqaddq_s16(q10s16, q6s16);
d6u8 = vqrshrun_n_s16(q7s16, 7);
d7u8 = vqrshrun_n_s16(q8s16, 7);
d8u8 = vqrshrun_n_s16(q9s16, 7);
d9u8 = vqrshrun_n_s16(q10s16, 7);
d18u8 = d22u8;
d19u8 = d23u8;
d20u8 = d24u8;
d21u8 = d25u8;
d22u8 = d26u8;
d23u8 = d27u8;
d24u8 = d28u8;
d25u8 = d29u8;
d26u8 = d30u8;
vst1_u8(dst_ptr, d6u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d7u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d8u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d9u8);
dst_ptr += dst_pitch;
}
return;
}
// load first_pass filter
dtmps8 = vld1_s8(vp8_sub_pel_filters[xoffset]);
d0s8 = vdup_lane_s8(dtmps8, 0);
d1s8 = vdup_lane_s8(dtmps8, 1);
d2s8 = vdup_lane_s8(dtmps8, 2);
d3s8 = vdup_lane_s8(dtmps8, 3);
d4s8 = vdup_lane_s8(dtmps8, 4);
d5s8 = vdup_lane_s8(dtmps8, 5);
d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
// First pass: output_height lines x output_width columns (9x4)
if (yoffset == 0) // firstpass_filter4x4_only
src = src_ptr - 2;
else
src = src_ptr - 2 - (src_pixels_per_line * 2);
tmpp = tmp;
for (i = 2; i > 0; i--) {
q3u8 = vld1q_u8(src);
src += src_pixels_per_line;
q4u8 = vld1q_u8(src);
src += src_pixels_per_line;
q5u8 = vld1q_u8(src);
src += src_pixels_per_line;
q6u8 = vld1q_u8(src);
src += src_pixels_per_line;
__builtin_prefetch(src);
__builtin_prefetch(src + src_pixels_per_line);
__builtin_prefetch(src + src_pixels_per_line * 2);
q7u16 = vmull_u8(vget_low_u8(q3u8), d0u8);
q8u16 = vmull_u8(vget_low_u8(q4u8), d0u8);
q9u16 = vmull_u8(vget_low_u8(q5u8), d0u8);
q10u16 = vmull_u8(vget_low_u8(q6u8), d0u8);
d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 1);
d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 1);
d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 1);
d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 1);
q7u16 = vmlsl_u8(q7u16, d28u8, d1u8);
q8u16 = vmlsl_u8(q8u16, d29u8, d1u8);
q9u16 = vmlsl_u8(q9u16, d30u8, d1u8);
q10u16 = vmlsl_u8(q10u16, d31u8, d1u8);
d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 4);
d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 4);
d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 4);
d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 4);
q7u16 = vmlsl_u8(q7u16, d28u8, d4u8);
q8u16 = vmlsl_u8(q8u16, d29u8, d4u8);
q9u16 = vmlsl_u8(q9u16, d30u8, d4u8);
q10u16 = vmlsl_u8(q10u16, d31u8, d4u8);
d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 2);
d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 2);
d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 2);
d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 2);
q7u16 = vmlal_u8(q7u16, d28u8, d2u8);
q8u16 = vmlal_u8(q8u16, d29u8, d2u8);
q9u16 = vmlal_u8(q9u16, d30u8, d2u8);
q10u16 = vmlal_u8(q10u16, d31u8, d2u8);
d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 5);
d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 5);
d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 5);
d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 5);
q7u16 = vmlal_u8(q7u16, d28u8, d5u8);
q8u16 = vmlal_u8(q8u16, d29u8, d5u8);
q9u16 = vmlal_u8(q9u16, d30u8, d5u8);
q10u16 = vmlal_u8(q10u16, d31u8, d5u8);
d28u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 3);
d29u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 3);
d30u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 3);
d31u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 3);
q3u16 = vmull_u8(d28u8, d3u8);
q4u16 = vmull_u8(d29u8, d3u8);
q5u16 = vmull_u8(d30u8, d3u8);
q6u16 = vmull_u8(d31u8, d3u8);
q3s16 = vreinterpretq_s16_u16(q3u16);
q4s16 = vreinterpretq_s16_u16(q4u16);
q5s16 = vreinterpretq_s16_u16(q5u16);
q6s16 = vreinterpretq_s16_u16(q6u16);
q7s16 = vreinterpretq_s16_u16(q7u16);
q8s16 = vreinterpretq_s16_u16(q8u16);
q9s16 = vreinterpretq_s16_u16(q9u16);
q10s16 = vreinterpretq_s16_u16(q10u16);
q7s16 = vqaddq_s16(q7s16, q3s16);
q8s16 = vqaddq_s16(q8s16, q4s16);
q9s16 = vqaddq_s16(q9s16, q5s16);
q10s16 = vqaddq_s16(q10s16, q6s16);
d22u8 = vqrshrun_n_s16(q7s16, 7);
d23u8 = vqrshrun_n_s16(q8s16, 7);
d24u8 = vqrshrun_n_s16(q9s16, 7);
d25u8 = vqrshrun_n_s16(q10s16, 7);
if (yoffset == 0) { // firstpass_filter8x4_only
vst1_u8(dst_ptr, d22u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d23u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d24u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d25u8);
dst_ptr += dst_pitch;
} else {
vst1_u8(tmpp, d22u8);
tmpp += 8;
vst1_u8(tmpp, d23u8);
tmpp += 8;
vst1_u8(tmpp, d24u8);
tmpp += 8;
vst1_u8(tmpp, d25u8);
tmpp += 8;
}
}
if (yoffset == 0) return;
// First Pass on rest 5-line data
q3u8 = vld1q_u8(src);
src += src_pixels_per_line;
q4u8 = vld1q_u8(src);
src += src_pixels_per_line;
q5u8 = vld1q_u8(src);
src += src_pixels_per_line;
q6u8 = vld1q_u8(src);
src += src_pixels_per_line;
q7u8 = vld1q_u8(src);
q8u16 = vmull_u8(vget_low_u8(q3u8), d0u8);
q9u16 = vmull_u8(vget_low_u8(q4u8), d0u8);
q10u16 = vmull_u8(vget_low_u8(q5u8), d0u8);
q11u16 = vmull_u8(vget_low_u8(q6u8), d0u8);
q12u16 = vmull_u8(vget_low_u8(q7u8), d0u8);
d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 1);
d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 1);
d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 1);
d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 1);
d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 1);
q8u16 = vmlsl_u8(q8u16, d27u8, d1u8);
q9u16 = vmlsl_u8(q9u16, d28u8, d1u8);
q10u16 = vmlsl_u8(q10u16, d29u8, d1u8);
q11u16 = vmlsl_u8(q11u16, d30u8, d1u8);
q12u16 = vmlsl_u8(q12u16, d31u8, d1u8);
d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 4);
d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 4);
d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 4);
d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 4);
d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 4);
q8u16 = vmlsl_u8(q8u16, d27u8, d4u8);
q9u16 = vmlsl_u8(q9u16, d28u8, d4u8);
q10u16 = vmlsl_u8(q10u16, d29u8, d4u8);
q11u16 = vmlsl_u8(q11u16, d30u8, d4u8);
q12u16 = vmlsl_u8(q12u16, d31u8, d4u8);
d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 2);
d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 2);
d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 2);
d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 2);
d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 2);
q8u16 = vmlal_u8(q8u16, d27u8, d2u8);
q9u16 = vmlal_u8(q9u16, d28u8, d2u8);
q10u16 = vmlal_u8(q10u16, d29u8, d2u8);
q11u16 = vmlal_u8(q11u16, d30u8, d2u8);
q12u16 = vmlal_u8(q12u16, d31u8, d2u8);
d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 5);
d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 5);
d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 5);
d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 5);
d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 5);
q8u16 = vmlal_u8(q8u16, d27u8, d5u8);
q9u16 = vmlal_u8(q9u16, d28u8, d5u8);
q10u16 = vmlal_u8(q10u16, d29u8, d5u8);
q11u16 = vmlal_u8(q11u16, d30u8, d5u8);
q12u16 = vmlal_u8(q12u16, d31u8, d5u8);
d27u8 = vext_u8(vget_low_u8(q3u8), vget_high_u8(q3u8), 3);
d28u8 = vext_u8(vget_low_u8(q4u8), vget_high_u8(q4u8), 3);
d29u8 = vext_u8(vget_low_u8(q5u8), vget_high_u8(q5u8), 3);
d30u8 = vext_u8(vget_low_u8(q6u8), vget_high_u8(q6u8), 3);
d31u8 = vext_u8(vget_low_u8(q7u8), vget_high_u8(q7u8), 3);
q3u16 = vmull_u8(d27u8, d3u8);
q4u16 = vmull_u8(d28u8, d3u8);
q5u16 = vmull_u8(d29u8, d3u8);
q6u16 = vmull_u8(d30u8, d3u8);
q7u16 = vmull_u8(d31u8, d3u8);
q3s16 = vreinterpretq_s16_u16(q3u16);
q4s16 = vreinterpretq_s16_u16(q4u16);
q5s16 = vreinterpretq_s16_u16(q5u16);
q6s16 = vreinterpretq_s16_u16(q6u16);
q7s16 = vreinterpretq_s16_u16(q7u16);
q8s16 = vreinterpretq_s16_u16(q8u16);
q9s16 = vreinterpretq_s16_u16(q9u16);
q10s16 = vreinterpretq_s16_u16(q10u16);
q11s16 = vreinterpretq_s16_u16(q11u16);
q12s16 = vreinterpretq_s16_u16(q12u16);
q8s16 = vqaddq_s16(q8s16, q3s16);
q9s16 = vqaddq_s16(q9s16, q4s16);
q10s16 = vqaddq_s16(q10s16, q5s16);
q11s16 = vqaddq_s16(q11s16, q6s16);
q12s16 = vqaddq_s16(q12s16, q7s16);
d26u8 = vqrshrun_n_s16(q8s16, 7);
d27u8 = vqrshrun_n_s16(q9s16, 7);
d28u8 = vqrshrun_n_s16(q10s16, 7);
d29u8 = vqrshrun_n_s16(q11s16, 7);
d30u8 = vqrshrun_n_s16(q12s16, 7);
// Second pass: 8x8
dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
d0s8 = vdup_lane_s8(dtmps8, 0);
d1s8 = vdup_lane_s8(dtmps8, 1);
d2s8 = vdup_lane_s8(dtmps8, 2);
d3s8 = vdup_lane_s8(dtmps8, 3);
d4s8 = vdup_lane_s8(dtmps8, 4);
d5s8 = vdup_lane_s8(dtmps8, 5);
d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
tmpp = tmp;
q9u8 = vld1q_u8(tmpp);
tmpp += 16;
q10u8 = vld1q_u8(tmpp);
tmpp += 16;
q11u8 = vld1q_u8(tmpp);
tmpp += 16;
q12u8 = vld1q_u8(tmpp);
d18u8 = vget_low_u8(q9u8);
d19u8 = vget_high_u8(q9u8);
d20u8 = vget_low_u8(q10u8);
d21u8 = vget_high_u8(q10u8);
d22u8 = vget_low_u8(q11u8);
d23u8 = vget_high_u8(q11u8);
d24u8 = vget_low_u8(q12u8);
d25u8 = vget_high_u8(q12u8);
for (i = 2; i > 0; i--) {
q3u16 = vmull_u8(d18u8, d0u8);
q4u16 = vmull_u8(d19u8, d0u8);
q5u16 = vmull_u8(d20u8, d0u8);
q6u16 = vmull_u8(d21u8, d0u8);
q3u16 = vmlsl_u8(q3u16, d19u8, d1u8);
q4u16 = vmlsl_u8(q4u16, d20u8, d1u8);
q5u16 = vmlsl_u8(q5u16, d21u8, d1u8);
q6u16 = vmlsl_u8(q6u16, d22u8, d1u8);
q3u16 = vmlsl_u8(q3u16, d22u8, d4u8);
q4u16 = vmlsl_u8(q4u16, d23u8, d4u8);
q5u16 = vmlsl_u8(q5u16, d24u8, d4u8);
q6u16 = vmlsl_u8(q6u16, d25u8, d4u8);
q3u16 = vmlal_u8(q3u16, d20u8, d2u8);
q4u16 = vmlal_u8(q4u16, d21u8, d2u8);
q5u16 = vmlal_u8(q5u16, d22u8, d2u8);
q6u16 = vmlal_u8(q6u16, d23u8, d2u8);
q3u16 = vmlal_u8(q3u16, d23u8, d5u8);
q4u16 = vmlal_u8(q4u16, d24u8, d5u8);
q5u16 = vmlal_u8(q5u16, d25u8, d5u8);
q6u16 = vmlal_u8(q6u16, d26u8, d5u8);
q7u16 = vmull_u8(d21u8, d3u8);
q8u16 = vmull_u8(d22u8, d3u8);
q9u16 = vmull_u8(d23u8, d3u8);
q10u16 = vmull_u8(d24u8, d3u8);
q3s16 = vreinterpretq_s16_u16(q3u16);
q4s16 = vreinterpretq_s16_u16(q4u16);
q5s16 = vreinterpretq_s16_u16(q5u16);
q6s16 = vreinterpretq_s16_u16(q6u16);
q7s16 = vreinterpretq_s16_u16(q7u16);
q8s16 = vreinterpretq_s16_u16(q8u16);
q9s16 = vreinterpretq_s16_u16(q9u16);
q10s16 = vreinterpretq_s16_u16(q10u16);
q7s16 = vqaddq_s16(q7s16, q3s16);
q8s16 = vqaddq_s16(q8s16, q4s16);
q9s16 = vqaddq_s16(q9s16, q5s16);
q10s16 = vqaddq_s16(q10s16, q6s16);
d6u8 = vqrshrun_n_s16(q7s16, 7);
d7u8 = vqrshrun_n_s16(q8s16, 7);
d8u8 = vqrshrun_n_s16(q9s16, 7);
d9u8 = vqrshrun_n_s16(q10s16, 7);
d18u8 = d22u8;
d19u8 = d23u8;
d20u8 = d24u8;
d21u8 = d25u8;
d22u8 = d26u8;
d23u8 = d27u8;
d24u8 = d28u8;
d25u8 = d29u8;
d26u8 = d30u8;
vst1_u8(dst_ptr, d6u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d7u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d8u8);
dst_ptr += dst_pitch;
vst1_u8(dst_ptr, d9u8);
dst_ptr += dst_pitch;
}
return;
}
void vp8_sixtap_predict16x16_neon(unsigned char *src_ptr,
int src_pixels_per_line, int xoffset,
int yoffset, unsigned char *dst_ptr,
int dst_pitch) {
unsigned char *src, *src_tmp, *dst, *tmpp;
unsigned char tmp[336];
int i, j;
uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8, d8u8, d9u8;
uint8x8_t d10u8, d11u8, d12u8, d13u8, d14u8, d15u8, d18u8, d19u8;
uint8x8_t d20u8, d21u8, d22u8, d23u8, d24u8, d25u8, d26u8, d27u8;
uint8x8_t d28u8, d29u8, d30u8, d31u8;
int8x8_t dtmps8, d0s8, d1s8, d2s8, d3s8, d4s8, d5s8;
uint8x16_t q3u8, q4u8;
uint16x8_t q3u16, q4u16, q5u16, q6u16, q7u16, q8u16, q9u16, q10u16;
uint16x8_t q11u16, q12u16, q13u16, q15u16;
int16x8_t q3s16, q4s16, q5s16, q6s16, q7s16, q8s16, q9s16, q10s16;
int16x8_t q11s16, q12s16, q13s16, q15s16;
if (xoffset == 0) { // secondpass_filter8x8_only
// load second_pass filter
dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
d0s8 = vdup_lane_s8(dtmps8, 0);
d1s8 = vdup_lane_s8(dtmps8, 1);
d2s8 = vdup_lane_s8(dtmps8, 2);
d3s8 = vdup_lane_s8(dtmps8, 3);
d4s8 = vdup_lane_s8(dtmps8, 4);
d5s8 = vdup_lane_s8(dtmps8, 5);
d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
// load src data
src_tmp = src_ptr - src_pixels_per_line * 2;
for (i = 0; i < 2; ++i) {
src = src_tmp + i * 8;
dst = dst_ptr + i * 8;
d18u8 = vld1_u8(src);
src += src_pixels_per_line;
d19u8 = vld1_u8(src);
src += src_pixels_per_line;
d20u8 = vld1_u8(src);
src += src_pixels_per_line;
d21u8 = vld1_u8(src);
src += src_pixels_per_line;
d22u8 = vld1_u8(src);
src += src_pixels_per_line;
for (j = 0; j < 4; ++j) {
d23u8 = vld1_u8(src);
src += src_pixels_per_line;
d24u8 = vld1_u8(src);
src += src_pixels_per_line;
d25u8 = vld1_u8(src);
src += src_pixels_per_line;
d26u8 = vld1_u8(src);
src += src_pixels_per_line;
q3u16 = vmull_u8(d18u8, d0u8);
q4u16 = vmull_u8(d19u8, d0u8);
q5u16 = vmull_u8(d20u8, d0u8);
q6u16 = vmull_u8(d21u8, d0u8);
q3u16 = vmlsl_u8(q3u16, d19u8, d1u8);
q4u16 = vmlsl_u8(q4u16, d20u8, d1u8);
q5u16 = vmlsl_u8(q5u16, d21u8, d1u8);
q6u16 = vmlsl_u8(q6u16, d22u8, d1u8);
q3u16 = vmlsl_u8(q3u16, d22u8, d4u8);
q4u16 = vmlsl_u8(q4u16, d23u8, d4u8);
q5u16 = vmlsl_u8(q5u16, d24u8, d4u8);
q6u16 = vmlsl_u8(q6u16, d25u8, d4u8);
q3u16 = vmlal_u8(q3u16, d20u8, d2u8);
q4u16 = vmlal_u8(q4u16, d21u8, d2u8);
q5u16 = vmlal_u8(q5u16, d22u8, d2u8);
q6u16 = vmlal_u8(q6u16, d23u8, d2u8);
q3u16 = vmlal_u8(q3u16, d23u8, d5u8);
q4u16 = vmlal_u8(q4u16, d24u8, d5u8);
q5u16 = vmlal_u8(q5u16, d25u8, d5u8);
q6u16 = vmlal_u8(q6u16, d26u8, d5u8);
q7u16 = vmull_u8(d21u8, d3u8);
q8u16 = vmull_u8(d22u8, d3u8);
q9u16 = vmull_u8(d23u8, d3u8);
q10u16 = vmull_u8(d24u8, d3u8);
q3s16 = vreinterpretq_s16_u16(q3u16);
q4s16 = vreinterpretq_s16_u16(q4u16);
q5s16 = vreinterpretq_s16_u16(q5u16);
q6s16 = vreinterpretq_s16_u16(q6u16);
q7s16 = vreinterpretq_s16_u16(q7u16);
q8s16 = vreinterpretq_s16_u16(q8u16);
q9s16 = vreinterpretq_s16_u16(q9u16);
q10s16 = vreinterpretq_s16_u16(q10u16);
q7s16 = vqaddq_s16(q7s16, q3s16);
q8s16 = vqaddq_s16(q8s16, q4s16);
q9s16 = vqaddq_s16(q9s16, q5s16);
q10s16 = vqaddq_s16(q10s16, q6s16);
d6u8 = vqrshrun_n_s16(q7s16, 7);
d7u8 = vqrshrun_n_s16(q8s16, 7);
d8u8 = vqrshrun_n_s16(q9s16, 7);
d9u8 = vqrshrun_n_s16(q10s16, 7);
d18u8 = d22u8;
d19u8 = d23u8;
d20u8 = d24u8;
d21u8 = d25u8;
d22u8 = d26u8;
vst1_u8(dst, d6u8);
dst += dst_pitch;
vst1_u8(dst, d7u8);
dst += dst_pitch;
vst1_u8(dst, d8u8);
dst += dst_pitch;
vst1_u8(dst, d9u8);
dst += dst_pitch;
}
}
return;
}
// load first_pass filter
dtmps8 = vld1_s8(vp8_sub_pel_filters[xoffset]);
d0s8 = vdup_lane_s8(dtmps8, 0);
d1s8 = vdup_lane_s8(dtmps8, 1);
d2s8 = vdup_lane_s8(dtmps8, 2);
d3s8 = vdup_lane_s8(dtmps8, 3);
d4s8 = vdup_lane_s8(dtmps8, 4);
d5s8 = vdup_lane_s8(dtmps8, 5);
d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
// First pass: output_height lines x output_width columns (9x4)
if (yoffset == 0) { // firstpass_filter4x4_only
src = src_ptr - 2;
dst = dst_ptr;
for (i = 0; i < 8; ++i) {
d6u8 = vld1_u8(src);
d7u8 = vld1_u8(src + 8);
d8u8 = vld1_u8(src + 16);
src += src_pixels_per_line;
d9u8 = vld1_u8(src);
d10u8 = vld1_u8(src + 8);
d11u8 = vld1_u8(src + 16);
src += src_pixels_per_line;
__builtin_prefetch(src);
__builtin_prefetch(src + src_pixels_per_line);
q6u16 = vmull_u8(d6u8, d0u8);
q7u16 = vmull_u8(d7u8, d0u8);
q8u16 = vmull_u8(d9u8, d0u8);
q9u16 = vmull_u8(d10u8, d0u8);
d20u8 = vext_u8(d6u8, d7u8, 1);
d21u8 = vext_u8(d9u8, d10u8, 1);
d22u8 = vext_u8(d7u8, d8u8, 1);
d23u8 = vext_u8(d10u8, d11u8, 1);
d24u8 = vext_u8(d6u8, d7u8, 4);
d25u8 = vext_u8(d9u8, d10u8, 4);
d26u8 = vext_u8(d7u8, d8u8, 4);
d27u8 = vext_u8(d10u8, d11u8, 4);
d28u8 = vext_u8(d6u8, d7u8, 5);
d29u8 = vext_u8(d9u8, d10u8, 5);
q6u16 = vmlsl_u8(q6u16, d20u8, d1u8);
q8u16 = vmlsl_u8(q8u16, d21u8, d1u8);
q7u16 = vmlsl_u8(q7u16, d22u8, d1u8);
q9u16 = vmlsl_u8(q9u16, d23u8, d1u8);
q6u16 = vmlsl_u8(q6u16, d24u8, d4u8);
q8u16 = vmlsl_u8(q8u16, d25u8, d4u8);
q7u16 = vmlsl_u8(q7u16, d26u8, d4u8);
q9u16 = vmlsl_u8(q9u16, d27u8, d4u8);
q6u16 = vmlal_u8(q6u16, d28u8, d5u8);
q8u16 = vmlal_u8(q8u16, d29u8, d5u8);
d20u8 = vext_u8(d7u8, d8u8, 5);
d21u8 = vext_u8(d10u8, d11u8, 5);
d22u8 = vext_u8(d6u8, d7u8, 2);
d23u8 = vext_u8(d9u8, d10u8, 2);
d24u8 = vext_u8(d7u8, d8u8, 2);
d25u8 = vext_u8(d10u8, d11u8, 2);
d26u8 = vext_u8(d6u8, d7u8, 3);
d27u8 = vext_u8(d9u8, d10u8, 3);
d28u8 = vext_u8(d7u8, d8u8, 3);
d29u8 = vext_u8(d10u8, d11u8, 3);
q7u16 = vmlal_u8(q7u16, d20u8, d5u8);
q9u16 = vmlal_u8(q9u16, d21u8, d5u8);
q6u16 = vmlal_u8(q6u16, d22u8, d2u8);
q8u16 = vmlal_u8(q8u16, d23u8, d2u8);
q7u16 = vmlal_u8(q7u16, d24u8, d2u8);
q9u16 = vmlal_u8(q9u16, d25u8, d2u8);
q10u16 = vmull_u8(d26u8, d3u8);
q11u16 = vmull_u8(d27u8, d3u8);
q12u16 = vmull_u8(d28u8, d3u8);
q15u16 = vmull_u8(d29u8, d3u8);
q6s16 = vreinterpretq_s16_u16(q6u16);
q7s16 = vreinterpretq_s16_u16(q7u16);
q8s16 = vreinterpretq_s16_u16(q8u16);
q9s16 = vreinterpretq_s16_u16(q9u16);
q10s16 = vreinterpretq_s16_u16(q10u16);
q11s16 = vreinterpretq_s16_u16(q11u16);
q12s16 = vreinterpretq_s16_u16(q12u16);
q15s16 = vreinterpretq_s16_u16(q15u16);
q6s16 = vqaddq_s16(q6s16, q10s16);
q8s16 = vqaddq_s16(q8s16, q11s16);
q7s16 = vqaddq_s16(q7s16, q12s16);
q9s16 = vqaddq_s16(q9s16, q15s16);
d6u8 = vqrshrun_n_s16(q6s16, 7);
d7u8 = vqrshrun_n_s16(q7s16, 7);
d8u8 = vqrshrun_n_s16(q8s16, 7);
d9u8 = vqrshrun_n_s16(q9s16, 7);
q3u8 = vcombine_u8(d6u8, d7u8);
q4u8 = vcombine_u8(d8u8, d9u8);
vst1q_u8(dst, q3u8);
dst += dst_pitch;
vst1q_u8(dst, q4u8);
dst += dst_pitch;
}
return;
}
src = src_ptr - 2 - src_pixels_per_line * 2;
tmpp = tmp;
for (i = 0; i < 7; ++i) {
d6u8 = vld1_u8(src);
d7u8 = vld1_u8(src + 8);
d8u8 = vld1_u8(src + 16);
src += src_pixels_per_line;
d9u8 = vld1_u8(src);
d10u8 = vld1_u8(src + 8);
d11u8 = vld1_u8(src + 16);
src += src_pixels_per_line;
d12u8 = vld1_u8(src);
d13u8 = vld1_u8(src + 8);
d14u8 = vld1_u8(src + 16);
src += src_pixels_per_line;
__builtin_prefetch(src);
__builtin_prefetch(src + src_pixels_per_line);
__builtin_prefetch(src + src_pixels_per_line * 2);
q8u16 = vmull_u8(d6u8, d0u8);
q9u16 = vmull_u8(d7u8, d0u8);
q10u16 = vmull_u8(d9u8, d0u8);
q11u16 = vmull_u8(d10u8, d0u8);
q12u16 = vmull_u8(d12u8, d0u8);
q13u16 = vmull_u8(d13u8, d0u8);
d28u8 = vext_u8(d6u8, d7u8, 1);
d29u8 = vext_u8(d9u8, d10u8, 1);
d30u8 = vext_u8(d12u8, d13u8, 1);
q8u16 = vmlsl_u8(q8u16, d28u8, d1u8);
q10u16 = vmlsl_u8(q10u16, d29u8, d1u8);
q12u16 = vmlsl_u8(q12u16, d30u8, d1u8);
d28u8 = vext_u8(d7u8, d8u8, 1);
d29u8 = vext_u8(d10u8, d11u8, 1);
d30u8 = vext_u8(d13u8, d14u8, 1);
q9u16 = vmlsl_u8(q9u16, d28u8, d1u8);
q11u16 = vmlsl_u8(q11u16, d29u8, d1u8);
q13u16 = vmlsl_u8(q13u16, d30u8, d1u8);
d28u8 = vext_u8(d6u8, d7u8, 4);
d29u8 = vext_u8(d9u8, d10u8, 4);
d30u8 = vext_u8(d12u8, d13u8, 4);
q8u16 = vmlsl_u8(q8u16, d28u8, d4u8);
q10u16 = vmlsl_u8(q10u16, d29u8, d4u8);
q12u16 = vmlsl_u8(q12u16, d30u8, d4u8);
d28u8 = vext_u8(d7u8, d8u8, 4);
d29u8 = vext_u8(d10u8, d11u8, 4);
d30u8 = vext_u8(d13u8, d14u8, 4);
q9u16 = vmlsl_u8(q9u16, d28u8, d4u8);
q11u16 = vmlsl_u8(q11u16, d29u8, d4u8);
q13u16 = vmlsl_u8(q13u16, d30u8, d4u8);
d28u8 = vext_u8(d6u8, d7u8, 5);
d29u8 = vext_u8(d9u8, d10u8, 5);
d30u8 = vext_u8(d12u8, d13u8, 5);
q8u16 = vmlal_u8(q8u16, d28u8, d5u8);
q10u16 = vmlal_u8(q10u16, d29u8, d5u8);
q12u16 = vmlal_u8(q12u16, d30u8, d5u8);
d28u8 = vext_u8(d7u8, d8u8, 5);
d29u8 = vext_u8(d10u8, d11u8, 5);
d30u8 = vext_u8(d13u8, d14u8, 5);
q9u16 = vmlal_u8(q9u16, d28u8, d5u8);
q11u16 = vmlal_u8(q11u16, d29u8, d5u8);
q13u16 = vmlal_u8(q13u16, d30u8, d5u8);
d28u8 = vext_u8(d6u8, d7u8, 2);
d29u8 = vext_u8(d9u8, d10u8, 2);
d30u8 = vext_u8(d12u8, d13u8, 2);
q8u16 = vmlal_u8(q8u16, d28u8, d2u8);
q10u16 = vmlal_u8(q10u16, d29u8, d2u8);
q12u16 = vmlal_u8(q12u16, d30u8, d2u8);
d28u8 = vext_u8(d7u8, d8u8, 2);
d29u8 = vext_u8(d10u8, d11u8, 2);
d30u8 = vext_u8(d13u8, d14u8, 2);
q9u16 = vmlal_u8(q9u16, d28u8, d2u8);
q11u16 = vmlal_u8(q11u16, d29u8, d2u8);
q13u16 = vmlal_u8(q13u16, d30u8, d2u8);
d28u8 = vext_u8(d6u8, d7u8, 3);
d29u8 = vext_u8(d9u8, d10u8, 3);
d30u8 = vext_u8(d12u8, d13u8, 3);
d15u8 = vext_u8(d7u8, d8u8, 3);
d31u8 = vext_u8(d10u8, d11u8, 3);
d6u8 = vext_u8(d13u8, d14u8, 3);
q4u16 = vmull_u8(d28u8, d3u8);
q5u16 = vmull_u8(d29u8, d3u8);
q6u16 = vmull_u8(d30u8, d3u8);
q4s16 = vreinterpretq_s16_u16(q4u16);
q5s16 = vreinterpretq_s16_u16(q5u16);
q6s16 = vreinterpretq_s16_u16(q6u16);
q8s16 = vreinterpretq_s16_u16(q8u16);
q10s16 = vreinterpretq_s16_u16(q10u16);
q12s16 = vreinterpretq_s16_u16(q12u16);
q8s16 = vqaddq_s16(q8s16, q4s16);
q10s16 = vqaddq_s16(q10s16, q5s16);
q12s16 = vqaddq_s16(q12s16, q6s16);
q6u16 = vmull_u8(d15u8, d3u8);
q7u16 = vmull_u8(d31u8, d3u8);
q3u16 = vmull_u8(d6u8, d3u8);
q3s16 = vreinterpretq_s16_u16(q3u16);
q6s16 = vreinterpretq_s16_u16(q6u16);
q7s16 = vreinterpretq_s16_u16(q7u16);
q9s16 = vreinterpretq_s16_u16(q9u16);
q11s16 = vreinterpretq_s16_u16(q11u16);
q13s16 = vreinterpretq_s16_u16(q13u16);
q9s16 = vqaddq_s16(q9s16, q6s16);
q11s16 = vqaddq_s16(q11s16, q7s16);
q13s16 = vqaddq_s16(q13s16, q3s16);
d6u8 = vqrshrun_n_s16(q8s16, 7);
d7u8 = vqrshrun_n_s16(q9s16, 7);
d8u8 = vqrshrun_n_s16(q10s16, 7);
d9u8 = vqrshrun_n_s16(q11s16, 7);
d10u8 = vqrshrun_n_s16(q12s16, 7);
d11u8 = vqrshrun_n_s16(q13s16, 7);
vst1_u8(tmpp, d6u8);
tmpp += 8;
vst1_u8(tmpp, d7u8);
tmpp += 8;
vst1_u8(tmpp, d8u8);
tmpp += 8;
vst1_u8(tmpp, d9u8);
tmpp += 8;
vst1_u8(tmpp, d10u8);
tmpp += 8;
vst1_u8(tmpp, d11u8);
tmpp += 8;
}
// Second pass: 16x16
dtmps8 = vld1_s8(vp8_sub_pel_filters[yoffset]);
d0s8 = vdup_lane_s8(dtmps8, 0);
d1s8 = vdup_lane_s8(dtmps8, 1);
d2s8 = vdup_lane_s8(dtmps8, 2);
d3s8 = vdup_lane_s8(dtmps8, 3);
d4s8 = vdup_lane_s8(dtmps8, 4);
d5s8 = vdup_lane_s8(dtmps8, 5);
d0u8 = vreinterpret_u8_s8(vabs_s8(d0s8));
d1u8 = vreinterpret_u8_s8(vabs_s8(d1s8));
d2u8 = vreinterpret_u8_s8(vabs_s8(d2s8));
d3u8 = vreinterpret_u8_s8(vabs_s8(d3s8));
d4u8 = vreinterpret_u8_s8(vabs_s8(d4s8));
d5u8 = vreinterpret_u8_s8(vabs_s8(d5s8));
for (i = 0; i < 2; ++i) {
dst = dst_ptr + 8 * i;
tmpp = tmp + 8 * i;
d18u8 = vld1_u8(tmpp);
tmpp += 16;
d19u8 = vld1_u8(tmpp);
tmpp += 16;
d20u8 = vld1_u8(tmpp);
tmpp += 16;
d21u8 = vld1_u8(tmpp);
tmpp += 16;
d22u8 = vld1_u8(tmpp);
tmpp += 16;
for (j = 0; j < 4; ++j) {
d23u8 = vld1_u8(tmpp);
tmpp += 16;
d24u8 = vld1_u8(tmpp);
tmpp += 16;
d25u8 = vld1_u8(tmpp);
tmpp += 16;
d26u8 = vld1_u8(tmpp);
tmpp += 16;
q3u16 = vmull_u8(d18u8, d0u8);
q4u16 = vmull_u8(d19u8, d0u8);
q5u16 = vmull_u8(d20u8, d0u8);
q6u16 = vmull_u8(d21u8, d0u8);
q3u16 = vmlsl_u8(q3u16, d19u8, d1u8);
q4u16 = vmlsl_u8(q4u16, d20u8, d1u8);
q5u16 = vmlsl_u8(q5u16, d21u8, d1u8);
q6u16 = vmlsl_u8(q6u16, d22u8, d1u8);
q3u16 = vmlsl_u8(q3u16, d22u8, d4u8);
q4u16 = vmlsl_u8(q4u16, d23u8, d4u8);
q5u16 = vmlsl_u8(q5u16, d24u8, d4u8);
q6u16 = vmlsl_u8(q6u16, d25u8, d4u8);
q3u16 = vmlal_u8(q3u16, d20u8, d2u8);
q4u16 = vmlal_u8(q4u16, d21u8, d2u8);
q5u16 = vmlal_u8(q5u16, d22u8, d2u8);
q6u16 = vmlal_u8(q6u16, d23u8, d2u8);
q3u16 = vmlal_u8(q3u16, d23u8, d5u8);
q4u16 = vmlal_u8(q4u16, d24u8, d5u8);
q5u16 = vmlal_u8(q5u16, d25u8, d5u8);
q6u16 = vmlal_u8(q6u16, d26u8, d5u8);
q7u16 = vmull_u8(d21u8, d3u8);
q8u16 = vmull_u8(d22u8, d3u8);
q9u16 = vmull_u8(d23u8, d3u8);
q10u16 = vmull_u8(d24u8, d3u8);
q3s16 = vreinterpretq_s16_u16(q3u16);
q4s16 = vreinterpretq_s16_u16(q4u16);
q5s16 = vreinterpretq_s16_u16(q5u16);
q6s16 = vreinterpretq_s16_u16(q6u16);
q7s16 = vreinterpretq_s16_u16(q7u16);
q8s16 = vreinterpretq_s16_u16(q8u16);
q9s16 = vreinterpretq_s16_u16(q9u16);
q10s16 = vreinterpretq_s16_u16(q10u16);
q7s16 = vqaddq_s16(q7s16, q3s16);
q8s16 = vqaddq_s16(q8s16, q4s16);
q9s16 = vqaddq_s16(q9s16, q5s16);
q10s16 = vqaddq_s16(q10s16, q6s16);
d6u8 = vqrshrun_n_s16(q7s16, 7);
d7u8 = vqrshrun_n_s16(q8s16, 7);
d8u8 = vqrshrun_n_s16(q9s16, 7);
d9u8 = vqrshrun_n_s16(q10s16, 7);
d18u8 = d22u8;
d19u8 = d23u8;
d20u8 = d24u8;
d21u8 = d25u8;
d22u8 = d26u8;
vst1_u8(dst, d6u8);
dst += dst_pitch;
vst1_u8(dst, d7u8);
dst += dst_pitch;
vst1_u8(dst, d8u8);
dst += dst_pitch;
vst1_u8(dst, d9u8);
dst += dst_pitch;
}
}
return;
}