/*
* Copyright (c) 2023, Alliance for Open Media. All rights reserved.
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include <arm_neon.h>
#include "config/aom_config.h"
#include "config/aom_dsp_rtcd.h"
#include "aom/aom_integer.h"
#include "aom_dsp/arm/mem_neon.h"
#include "aom_dsp/arm/sum_neon.h"
static inline void sad16_neon(uint8x16_t src, uint8x16_t ref,
uint32x4_t *const sad_sum) {
uint8x16_t abs_diff = vabdq_u8(src, ref);
*sad_sum = vdotq_u32(*sad_sum, abs_diff, vdupq_n_u8(1 ));
}
static inline void sadwxhx3d_large_neon_dotprod(const uint8_t *src,
int src_stride,
const uint8_t *const ref[4 ],
int ref_stride, uint32_t res[4 ],
int w, int h) {
uint32x4_t sum_lo[3 ] = { vdupq_n_u32(0 ), vdupq_n_u32(0 ), vdupq_n_u32(0 ) };
uint32x4_t sum_hi[3 ] = { vdupq_n_u32(0 ), vdupq_n_u32(0 ), vdupq_n_u32(0 ) };
int ref_offset = 0 ;
int i = h;
do {
int j = 0 ;
do {
const uint8x16_t s0 = vld1q_u8(src + j);
sad16_neon(s0, vld1q_u8(ref[0 ] + ref_offset + j), &sum_lo[0 ]);
sad16_neon(s0, vld1q_u8(ref[1 ] + ref_offset + j), &sum_lo[1 ]);
sad16_neon(s0, vld1q_u8(ref[2 ] + ref_offset + j), &sum_lo[2 ]);
const uint8x16_t s1 = vld1q_u8(src + j + 16 );
sad16_neon(s1, vld1q_u8(ref[0 ] + ref_offset + j + 16 ), &sum_hi[0 ]);
sad16_neon(s1, vld1q_u8(ref[1 ] + ref_offset + j + 16 ), &sum_hi[1 ]);
sad16_neon(s1, vld1q_u8(ref[2 ] + ref_offset + j + 16 ), &sum_hi[2 ]);
j += 32 ;
} while (j < w);
src += src_stride;
ref_offset += ref_stride;
} while (--i != 0 );
res[0 ] = horizontal_add_u32x4(vaddq_u32(sum_lo[0 ], sum_hi[0 ]));
res[1 ] = horizontal_add_u32x4(vaddq_u32(sum_lo[1 ], sum_hi[1 ]));
res[2 ] = horizontal_add_u32x4(vaddq_u32(sum_lo[2 ], sum_hi[2 ]));
}
static inline void sad128xhx3d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4 ],
int ref_stride, uint32_t res[4 ],
int h) {
sadwxhx3d_large_neon_dotprod(src, src_stride, ref, ref_stride, res, 128 , h);
}
static inline void sad64xhx3d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4 ],
int ref_stride, uint32_t res[4 ],
int h) {
sadwxhx3d_large_neon_dotprod(src, src_stride, ref, ref_stride, res, 64 , h);
}
static inline void sad32xhx3d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4 ],
int ref_stride, uint32_t res[4 ],
int h) {
sadwxhx3d_large_neon_dotprod(src, src_stride, ref, ref_stride, res, 32 , h);
}
static inline void sad16xhx3d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4 ],
int ref_stride, uint32_t res[4 ],
int h) {
uint32x4_t sum[3 ] = { vdupq_n_u32(0 ), vdupq_n_u32(0 ), vdupq_n_u32(0 ) };
int ref_offset = 0 ;
int i = h;
do {
const uint8x16_t s = vld1q_u8(src);
sad16_neon(s, vld1q_u8(ref[0 ] + ref_offset), &sum[0 ]);
sad16_neon(s, vld1q_u8(ref[1 ] + ref_offset), &sum[1 ]);
sad16_neon(s, vld1q_u8(ref[2 ] + ref_offset), &sum[2 ]);
src += src_stride;
ref_offset += ref_stride;
} while (--i != 0 );
res[0 ] = horizontal_add_u32x4(sum[0 ]);
res[1 ] = horizontal_add_u32x4(sum[1 ]);
res[2 ] = horizontal_add_u32x4(sum[2 ]);
}
#define SAD_WXH_3D_NEON_DOTPROD(w, h) \
void aom_sad## w## x## h## x3d_neon_dotprod(const uint8_t *src, int src_stride, \
const uint8_t *const ref[4 ], \
int ref_stride, uint32_t res[4 ]) { \
sad## w## xhx3d_neon_dotprod(src, src_stride, ref, ref_stride, res, (h)); \
}
SAD_WXH_3D_NEON_DOTPROD(16 , 8 )
SAD_WXH_3D_NEON_DOTPROD(16 , 16 )
SAD_WXH_3D_NEON_DOTPROD(16 , 32 )
SAD_WXH_3D_NEON_DOTPROD(32 , 16 )
SAD_WXH_3D_NEON_DOTPROD(32 , 32 )
SAD_WXH_3D_NEON_DOTPROD(32 , 64 )
SAD_WXH_3D_NEON_DOTPROD(64 , 32 )
SAD_WXH_3D_NEON_DOTPROD(64 , 64 )
SAD_WXH_3D_NEON_DOTPROD(64 , 128 )
SAD_WXH_3D_NEON_DOTPROD(128 , 64 )
SAD_WXH_3D_NEON_DOTPROD(128 , 128 )
#if !CONFIG_REALTIME_ONLY
SAD_WXH_3D_NEON_DOTPROD(16 , 4 )
SAD_WXH_3D_NEON_DOTPROD(16 , 64 )
SAD_WXH_3D_NEON_DOTPROD(32 , 8 )
SAD_WXH_3D_NEON_DOTPROD(64 , 16 )
#endif // !CONFIG_REALTIME_ONLY
#undef SAD_WXH_3D_NEON_DOTPROD
static inline void sadwxhx4d_large_neon_dotprod(const uint8_t *src,
int src_stride,
const uint8_t *const ref[4 ],
int ref_stride, uint32_t res[4 ],
int w, int h) {
uint32x4_t sum_lo[4 ] = { vdupq_n_u32(0 ), vdupq_n_u32(0 ), vdupq_n_u32(0 ),
vdupq_n_u32(0 ) };
uint32x4_t sum_hi[4 ] = { vdupq_n_u32(0 ), vdupq_n_u32(0 ), vdupq_n_u32(0 ),
vdupq_n_u32(0 ) };
uint32x4_t sum[4 ];
int ref_offset = 0 ;
int i = h;
do {
int j = 0 ;
do {
const uint8x16_t s0 = vld1q_u8(src + j);
sad16_neon(s0, vld1q_u8(ref[0 ] + ref_offset + j), &sum_lo[0 ]);
sad16_neon(s0, vld1q_u8(ref[1 ] + ref_offset + j), &sum_lo[1 ]);
sad16_neon(s0, vld1q_u8(ref[2 ] + ref_offset + j), &sum_lo[2 ]);
sad16_neon(s0, vld1q_u8(ref[3 ] + ref_offset + j), &sum_lo[3 ]);
const uint8x16_t s1 = vld1q_u8(src + j + 16 );
sad16_neon(s1, vld1q_u8(ref[0 ] + ref_offset + j + 16 ), &sum_hi[0 ]);
sad16_neon(s1, vld1q_u8(ref[1 ] + ref_offset + j + 16 ), &sum_hi[1 ]);
sad16_neon(s1, vld1q_u8(ref[2 ] + ref_offset + j + 16 ), &sum_hi[2 ]);
sad16_neon(s1, vld1q_u8(ref[3 ] + ref_offset + j + 16 ), &sum_hi[3 ]);
j += 32 ;
} while (j < w);
src += src_stride;
ref_offset += ref_stride;
} while (--i != 0 );
sum[0 ] = vaddq_u32(sum_lo[0 ], sum_hi[0 ]);
sum[1 ] = vaddq_u32(sum_lo[1 ], sum_hi[1 ]);
sum[2 ] = vaddq_u32(sum_lo[2 ], sum_hi[2 ]);
sum[3 ] = vaddq_u32(sum_lo[3 ], sum_hi[3 ]);
vst1q_u32(res, horizontal_add_4d_u32x4(sum));
}
static inline void sad128xhx4d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4 ],
int ref_stride, uint32_t res[4 ],
int h) {
sadwxhx4d_large_neon_dotprod(src, src_stride, ref, ref_stride, res, 128 , h);
}
static inline void sad64xhx4d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4 ],
int ref_stride, uint32_t res[4 ],
int h) {
sadwxhx4d_large_neon_dotprod(src, src_stride, ref, ref_stride, res, 64 , h);
}
static inline void sad32xhx4d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4 ],
int ref_stride, uint32_t res[4 ],
int h) {
sadwxhx4d_large_neon_dotprod(src, src_stride, ref, ref_stride, res, 32 , h);
}
static inline void sad16xhx4d_neon_dotprod(const uint8_t *src, int src_stride,
const uint8_t *const ref[4 ],
int ref_stride, uint32_t res[4 ],
int h) {
uint32x4_t sum[4 ] = { vdupq_n_u32(0 ), vdupq_n_u32(0 ), vdupq_n_u32(0 ),
vdupq_n_u32(0 ) };
int ref_offset = 0 ;
int i = h;
do {
const uint8x16_t s = vld1q_u8(src);
sad16_neon(s, vld1q_u8(ref[0 ] + ref_offset), &sum[0 ]);
sad16_neon(s, vld1q_u8(ref[1 ] + ref_offset), &sum[1 ]);
sad16_neon(s, vld1q_u8(ref[2 ] + ref_offset), &sum[2 ]);
sad16_neon(s, vld1q_u8(ref[3 ] + ref_offset), &sum[3 ]);
src += src_stride;
ref_offset += ref_stride;
} while (--i != 0 );
vst1q_u32(res, horizontal_add_4d_u32x4(sum));
}
#define SAD_WXH_4D_NEON_DOTPROD(w, h) \
void aom_sad## w## x## h## x4d_neon_dotprod(const uint8_t *src, int src_stride, \
const uint8_t *const ref[4 ], \
int ref_stride, uint32_t res[4 ]) { \
sad## w## xhx4d_neon_dotprod(src, src_stride, ref, ref_stride, res, (h)); \
}
SAD_WXH_4D_NEON_DOTPROD(16 , 8 )
SAD_WXH_4D_NEON_DOTPROD(16 , 16 )
SAD_WXH_4D_NEON_DOTPROD(16 , 32 )
SAD_WXH_4D_NEON_DOTPROD(32 , 16 )
SAD_WXH_4D_NEON_DOTPROD(32 , 32 )
SAD_WXH_4D_NEON_DOTPROD(32 , 64 )
SAD_WXH_4D_NEON_DOTPROD(64 , 32 )
SAD_WXH_4D_NEON_DOTPROD(64 , 64 )
SAD_WXH_4D_NEON_DOTPROD(64 , 128 )
SAD_WXH_4D_NEON_DOTPROD(128 , 64 )
SAD_WXH_4D_NEON_DOTPROD(128 , 128 )
#if !CONFIG_REALTIME_ONLY
SAD_WXH_4D_NEON_DOTPROD(16 , 4 )
SAD_WXH_4D_NEON_DOTPROD(16 , 64 )
SAD_WXH_4D_NEON_DOTPROD(32 , 8 )
SAD_WXH_4D_NEON_DOTPROD(64 , 16 )
#endif // !CONFIG_REALTIME_ONLY
#undef SAD_WXH_4D_NEON_DOTPROD
#define SAD_SKIP_WXH_4D_NEON_DOTPROD(w, h) \
void aom_sad_skip_## w## x## h## x4d_neon_dotprod( \
const uint8_t *src, int src_stride, const uint8_t *const ref[4 ], \
int ref_stride, uint32_t res[4 ]) { \
sad## w## xhx4d_neon_dotprod(src, 2 * src_stride, ref, 2 * ref_stride, res, \
((h) >> 1 )); \
res[0 ] <<= 1 ; \
res[1 ] <<= 1 ; \
res[2 ] <<= 1 ; \
res[3 ] <<= 1 ; \
}
SAD_SKIP_WXH_4D_NEON_DOTPROD(16 , 16 )
SAD_SKIP_WXH_4D_NEON_DOTPROD(16 , 32 )
SAD_SKIP_WXH_4D_NEON_DOTPROD(32 , 16 )
SAD_SKIP_WXH_4D_NEON_DOTPROD(32 , 32 )
SAD_SKIP_WXH_4D_NEON_DOTPROD(32 , 64 )
SAD_SKIP_WXH_4D_NEON_DOTPROD(64 , 32 )
SAD_SKIP_WXH_4D_NEON_DOTPROD(64 , 64 )
SAD_SKIP_WXH_4D_NEON_DOTPROD(64 , 128 )
SAD_SKIP_WXH_4D_NEON_DOTPROD(128 , 64 )
SAD_SKIP_WXH_4D_NEON_DOTPROD(128 , 128 )
#if !CONFIG_REALTIME_ONLY
SAD_SKIP_WXH_4D_NEON_DOTPROD(16 , 64 )
SAD_SKIP_WXH_4D_NEON_DOTPROD(64 , 16 )
#endif // !CONFIG_REALTIME_ONLY
#undef SAD_SKIP_WXH_4D_NEON_DOTPROD
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