ref: 14bc7731996cd27f1d2193d2f841e92ae8fad703
dir: /vp8/common/arm/neon/variance_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 "vpx_ports/mem.h" unsigned int vp8_variance16x16_neon( const unsigned char *src_ptr, int source_stride, const unsigned char *ref_ptr, int recon_stride, unsigned int *sse) { int i; int16x4_t d22s16, d23s16, d24s16, d25s16, d26s16, d27s16, d28s16, d29s16; uint32x2_t d0u32, d10u32; int64x1_t d0s64, d1s64; uint8x16_t q0u8, q1u8, q2u8, q3u8; uint16x8_t q11u16, q12u16, q13u16, q14u16; int32x4_t q8s32, q9s32, q10s32; int64x2_t q0s64, q1s64, q5s64; q8s32 = vdupq_n_s32(0); q9s32 = vdupq_n_s32(0); q10s32 = vdupq_n_s32(0); for (i = 0; i < 8; i++) { q0u8 = vld1q_u8(src_ptr); src_ptr += source_stride; q1u8 = vld1q_u8(src_ptr); src_ptr += source_stride; __builtin_prefetch(src_ptr); q2u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; q3u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; __builtin_prefetch(ref_ptr); q11u16 = vsubl_u8(vget_low_u8(q0u8), vget_low_u8(q2u8)); q12u16 = vsubl_u8(vget_high_u8(q0u8), vget_high_u8(q2u8)); q13u16 = vsubl_u8(vget_low_u8(q1u8), vget_low_u8(q3u8)); q14u16 = vsubl_u8(vget_high_u8(q1u8), vget_high_u8(q3u8)); d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16)); d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q11u16)); q9s32 = vmlal_s16(q9s32, d22s16, d22s16); q10s32 = vmlal_s16(q10s32, d23s16, d23s16); d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16)); d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q12u16)); q9s32 = vmlal_s16(q9s32, d24s16, d24s16); q10s32 = vmlal_s16(q10s32, d25s16, d25s16); d26s16 = vreinterpret_s16_u16(vget_low_u16(q13u16)); d27s16 = vreinterpret_s16_u16(vget_high_u16(q13u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q13u16)); q9s32 = vmlal_s16(q9s32, d26s16, d26s16); q10s32 = vmlal_s16(q10s32, d27s16, d27s16); d28s16 = vreinterpret_s16_u16(vget_low_u16(q14u16)); d29s16 = vreinterpret_s16_u16(vget_high_u16(q14u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q14u16)); q9s32 = vmlal_s16(q9s32, d28s16, d28s16); q10s32 = vmlal_s16(q10s32, d29s16, d29s16); } q10s32 = vaddq_s32(q10s32, q9s32); q0s64 = vpaddlq_s32(q8s32); q1s64 = vpaddlq_s32(q10s32); d0s64 = vadd_s64(vget_low_s64(q0s64), vget_high_s64(q0s64)); d1s64 = vadd_s64(vget_low_s64(q1s64), vget_high_s64(q1s64)); q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64), vreinterpret_s32_s64(d0s64)); vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0); d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 8); d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32); return vget_lane_u32(d0u32, 0); } unsigned int vp8_variance16x8_neon( const unsigned char *src_ptr, int source_stride, const unsigned char *ref_ptr, int recon_stride, unsigned int *sse) { int i; int16x4_t d22s16, d23s16, d24s16, d25s16, d26s16, d27s16, d28s16, d29s16; uint32x2_t d0u32, d10u32; int64x1_t d0s64, d1s64; uint8x16_t q0u8, q1u8, q2u8, q3u8; uint16x8_t q11u16, q12u16, q13u16, q14u16; int32x4_t q8s32, q9s32, q10s32; int64x2_t q0s64, q1s64, q5s64; q8s32 = vdupq_n_s32(0); q9s32 = vdupq_n_s32(0); q10s32 = vdupq_n_s32(0); for (i = 0; i < 4; i++) { // variance16x8_neon_loop q0u8 = vld1q_u8(src_ptr); src_ptr += source_stride; q1u8 = vld1q_u8(src_ptr); src_ptr += source_stride; __builtin_prefetch(src_ptr); q2u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; q3u8 = vld1q_u8(ref_ptr); ref_ptr += recon_stride; __builtin_prefetch(ref_ptr); q11u16 = vsubl_u8(vget_low_u8(q0u8), vget_low_u8(q2u8)); q12u16 = vsubl_u8(vget_high_u8(q0u8), vget_high_u8(q2u8)); q13u16 = vsubl_u8(vget_low_u8(q1u8), vget_low_u8(q3u8)); q14u16 = vsubl_u8(vget_high_u8(q1u8), vget_high_u8(q3u8)); d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16)); d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q11u16)); q9s32 = vmlal_s16(q9s32, d22s16, d22s16); q10s32 = vmlal_s16(q10s32, d23s16, d23s16); d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16)); d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q12u16)); q9s32 = vmlal_s16(q9s32, d24s16, d24s16); q10s32 = vmlal_s16(q10s32, d25s16, d25s16); d26s16 = vreinterpret_s16_u16(vget_low_u16(q13u16)); d27s16 = vreinterpret_s16_u16(vget_high_u16(q13u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q13u16)); q9s32 = vmlal_s16(q9s32, d26s16, d26s16); q10s32 = vmlal_s16(q10s32, d27s16, d27s16); d28s16 = vreinterpret_s16_u16(vget_low_u16(q14u16)); d29s16 = vreinterpret_s16_u16(vget_high_u16(q14u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q14u16)); q9s32 = vmlal_s16(q9s32, d28s16, d28s16); q10s32 = vmlal_s16(q10s32, d29s16, d29s16); } q10s32 = vaddq_s32(q10s32, q9s32); q0s64 = vpaddlq_s32(q8s32); q1s64 = vpaddlq_s32(q10s32); d0s64 = vadd_s64(vget_low_s64(q0s64), vget_high_s64(q0s64)); d1s64 = vadd_s64(vget_low_s64(q1s64), vget_high_s64(q1s64)); q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64), vreinterpret_s32_s64(d0s64)); vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0); d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 7); d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32); return vget_lane_u32(d0u32, 0); } unsigned int vp8_variance8x16_neon( const unsigned char *src_ptr, int source_stride, const unsigned char *ref_ptr, int recon_stride, unsigned int *sse) { int i; uint8x8_t d0u8, d2u8, d4u8, d6u8; int16x4_t d22s16, d23s16, d24s16, d25s16; uint32x2_t d0u32, d10u32; int64x1_t d0s64, d1s64; uint16x8_t q11u16, q12u16; int32x4_t q8s32, q9s32, q10s32; int64x2_t q0s64, q1s64, q5s64; q8s32 = vdupq_n_s32(0); q9s32 = vdupq_n_s32(0); q10s32 = vdupq_n_s32(0); for (i = 0; i < 8; i++) { // variance8x16_neon_loop d0u8 = vld1_u8(src_ptr); src_ptr += source_stride; d2u8 = vld1_u8(src_ptr); src_ptr += source_stride; __builtin_prefetch(src_ptr); d4u8 = vld1_u8(ref_ptr); ref_ptr += recon_stride; d6u8 = vld1_u8(ref_ptr); ref_ptr += recon_stride; __builtin_prefetch(ref_ptr); q11u16 = vsubl_u8(d0u8, d4u8); q12u16 = vsubl_u8(d2u8, d6u8); d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16)); d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q11u16)); q9s32 = vmlal_s16(q9s32, d22s16, d22s16); q10s32 = vmlal_s16(q10s32, d23s16, d23s16); d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16)); d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q12u16)); q9s32 = vmlal_s16(q9s32, d24s16, d24s16); q10s32 = vmlal_s16(q10s32, d25s16, d25s16); } q10s32 = vaddq_s32(q10s32, q9s32); q0s64 = vpaddlq_s32(q8s32); q1s64 = vpaddlq_s32(q10s32); d0s64 = vadd_s64(vget_low_s64(q0s64), vget_high_s64(q0s64)); d1s64 = vadd_s64(vget_low_s64(q1s64), vget_high_s64(q1s64)); q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64), vreinterpret_s32_s64(d0s64)); vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0); d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 7); d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32); return vget_lane_u32(d0u32, 0); } unsigned int vp8_variance8x8_neon( const unsigned char *src_ptr, int source_stride, const unsigned char *ref_ptr, int recon_stride, unsigned int *sse) { int i; uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8; int16x4_t d22s16, d23s16, d24s16, d25s16, d26s16, d27s16, d28s16, d29s16; uint32x2_t d0u32, d10u32; int64x1_t d0s64, d1s64; uint16x8_t q11u16, q12u16, q13u16, q14u16; int32x4_t q8s32, q9s32, q10s32; int64x2_t q0s64, q1s64, q5s64; q8s32 = vdupq_n_s32(0); q9s32 = vdupq_n_s32(0); q10s32 = vdupq_n_s32(0); for (i = 0; i < 2; i++) { // variance8x8_neon_loop d0u8 = vld1_u8(src_ptr); src_ptr += source_stride; d1u8 = vld1_u8(src_ptr); src_ptr += source_stride; d2u8 = vld1_u8(src_ptr); src_ptr += source_stride; d3u8 = vld1_u8(src_ptr); src_ptr += source_stride; d4u8 = vld1_u8(ref_ptr); ref_ptr += recon_stride; d5u8 = vld1_u8(ref_ptr); ref_ptr += recon_stride; d6u8 = vld1_u8(ref_ptr); ref_ptr += recon_stride; d7u8 = vld1_u8(ref_ptr); ref_ptr += recon_stride; q11u16 = vsubl_u8(d0u8, d4u8); q12u16 = vsubl_u8(d1u8, d5u8); q13u16 = vsubl_u8(d2u8, d6u8); q14u16 = vsubl_u8(d3u8, d7u8); d22s16 = vreinterpret_s16_u16(vget_low_u16(q11u16)); d23s16 = vreinterpret_s16_u16(vget_high_u16(q11u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q11u16)); q9s32 = vmlal_s16(q9s32, d22s16, d22s16); q10s32 = vmlal_s16(q10s32, d23s16, d23s16); d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16)); d25s16 = vreinterpret_s16_u16(vget_high_u16(q12u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q12u16)); q9s32 = vmlal_s16(q9s32, d24s16, d24s16); q10s32 = vmlal_s16(q10s32, d25s16, d25s16); d26s16 = vreinterpret_s16_u16(vget_low_u16(q13u16)); d27s16 = vreinterpret_s16_u16(vget_high_u16(q13u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q13u16)); q9s32 = vmlal_s16(q9s32, d26s16, d26s16); q10s32 = vmlal_s16(q10s32, d27s16, d27s16); d28s16 = vreinterpret_s16_u16(vget_low_u16(q14u16)); d29s16 = vreinterpret_s16_u16(vget_high_u16(q14u16)); q8s32 = vpadalq_s16(q8s32, vreinterpretq_s16_u16(q14u16)); q9s32 = vmlal_s16(q9s32, d28s16, d28s16); q10s32 = vmlal_s16(q10s32, d29s16, d29s16); } q10s32 = vaddq_s32(q10s32, q9s32); q0s64 = vpaddlq_s32(q8s32); q1s64 = vpaddlq_s32(q10s32); d0s64 = vadd_s64(vget_low_s64(q0s64), vget_high_s64(q0s64)); d1s64 = vadd_s64(vget_low_s64(q1s64), vget_high_s64(q1s64)); q5s64 = vmull_s32(vreinterpret_s32_s64(d0s64), vreinterpret_s32_s64(d0s64)); vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d1s64), 0); d10u32 = vshr_n_u32(vreinterpret_u32_s64(vget_low_s64(q5s64)), 6); d0u32 = vsub_u32(vreinterpret_u32_s64(d1s64), d10u32); return vget_lane_u32(d0u32, 0); }