diff options
Diffstat (limited to 'media/libvpx/vpx_dsp/arm/sad_neon.c')
| -rw-r--r-- | media/libvpx/vpx_dsp/arm/sad_neon.c | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/media/libvpx/vpx_dsp/arm/sad_neon.c b/media/libvpx/vpx_dsp/arm/sad_neon.c new file mode 100644 index 000000000..173f08ac3 --- /dev/null +++ b/media/libvpx/vpx_dsp/arm/sad_neon.c @@ -0,0 +1,232 @@ +/* + * 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 "vpx/vpx_integer.h" + +unsigned int vpx_sad8x16_neon( + unsigned char *src_ptr, + int src_stride, + unsigned char *ref_ptr, + int ref_stride) { + uint8x8_t d0, d8; + uint16x8_t q12; + uint32x4_t q1; + uint64x2_t q3; + uint32x2_t d5; + int i; + + d0 = vld1_u8(src_ptr); + src_ptr += src_stride; + d8 = vld1_u8(ref_ptr); + ref_ptr += ref_stride; + q12 = vabdl_u8(d0, d8); + + for (i = 0; i < 15; i++) { + d0 = vld1_u8(src_ptr); + src_ptr += src_stride; + d8 = vld1_u8(ref_ptr); + ref_ptr += ref_stride; + q12 = vabal_u8(q12, d0, d8); + } + + q1 = vpaddlq_u16(q12); + q3 = vpaddlq_u32(q1); + d5 = vadd_u32(vreinterpret_u32_u64(vget_low_u64(q3)), + vreinterpret_u32_u64(vget_high_u64(q3))); + + return vget_lane_u32(d5, 0); +} + +unsigned int vpx_sad4x4_neon( + unsigned char *src_ptr, + int src_stride, + unsigned char *ref_ptr, + int ref_stride) { + uint8x8_t d0, d8; + uint16x8_t q12; + uint32x2_t d1; + uint64x1_t d3; + int i; + + d0 = vld1_u8(src_ptr); + src_ptr += src_stride; + d8 = vld1_u8(ref_ptr); + ref_ptr += ref_stride; + q12 = vabdl_u8(d0, d8); + + for (i = 0; i < 3; i++) { + d0 = vld1_u8(src_ptr); + src_ptr += src_stride; + d8 = vld1_u8(ref_ptr); + ref_ptr += ref_stride; + q12 = vabal_u8(q12, d0, d8); + } + + d1 = vpaddl_u16(vget_low_u16(q12)); + d3 = vpaddl_u32(d1); + + return vget_lane_u32(vreinterpret_u32_u64(d3), 0); +} + +unsigned int vpx_sad16x8_neon( + unsigned char *src_ptr, + int src_stride, + unsigned char *ref_ptr, + int ref_stride) { + uint8x16_t q0, q4; + uint16x8_t q12, q13; + uint32x4_t q1; + uint64x2_t q3; + uint32x2_t d5; + int i; + + q0 = vld1q_u8(src_ptr); + src_ptr += src_stride; + q4 = vld1q_u8(ref_ptr); + ref_ptr += ref_stride; + q12 = vabdl_u8(vget_low_u8(q0), vget_low_u8(q4)); + q13 = vabdl_u8(vget_high_u8(q0), vget_high_u8(q4)); + + for (i = 0; i < 7; i++) { + q0 = vld1q_u8(src_ptr); + src_ptr += src_stride; + q4 = vld1q_u8(ref_ptr); + ref_ptr += ref_stride; + q12 = vabal_u8(q12, vget_low_u8(q0), vget_low_u8(q4)); + q13 = vabal_u8(q13, vget_high_u8(q0), vget_high_u8(q4)); + } + + q12 = vaddq_u16(q12, q13); + q1 = vpaddlq_u16(q12); + q3 = vpaddlq_u32(q1); + d5 = vadd_u32(vreinterpret_u32_u64(vget_low_u64(q3)), + vreinterpret_u32_u64(vget_high_u64(q3))); + + return vget_lane_u32(d5, 0); +} + +static INLINE unsigned int horizontal_long_add_16x8(const uint16x8_t vec_lo, + const uint16x8_t vec_hi) { + const uint32x4_t vec_l_lo = vaddl_u16(vget_low_u16(vec_lo), + vget_high_u16(vec_lo)); + const uint32x4_t vec_l_hi = vaddl_u16(vget_low_u16(vec_hi), + vget_high_u16(vec_hi)); + const uint32x4_t a = vaddq_u32(vec_l_lo, vec_l_hi); + const uint64x2_t b = vpaddlq_u32(a); + const uint32x2_t c = vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)), + vreinterpret_u32_u64(vget_high_u64(b))); + return vget_lane_u32(c, 0); +} +static INLINE unsigned int horizontal_add_16x8(const uint16x8_t vec_16x8) { + const uint32x4_t a = vpaddlq_u16(vec_16x8); + const uint64x2_t b = vpaddlq_u32(a); + const uint32x2_t c = vadd_u32(vreinterpret_u32_u64(vget_low_u64(b)), + vreinterpret_u32_u64(vget_high_u64(b))); + return vget_lane_u32(c, 0); +} + +unsigned int vpx_sad64x64_neon(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride) { + int i; + uint16x8_t vec_accum_lo = vdupq_n_u16(0); + uint16x8_t vec_accum_hi = vdupq_n_u16(0); + for (i = 0; i < 64; ++i) { + const uint8x16_t vec_src_00 = vld1q_u8(src); + const uint8x16_t vec_src_16 = vld1q_u8(src + 16); + const uint8x16_t vec_src_32 = vld1q_u8(src + 32); + const uint8x16_t vec_src_48 = vld1q_u8(src + 48); + const uint8x16_t vec_ref_00 = vld1q_u8(ref); + const uint8x16_t vec_ref_16 = vld1q_u8(ref + 16); + const uint8x16_t vec_ref_32 = vld1q_u8(ref + 32); + const uint8x16_t vec_ref_48 = vld1q_u8(ref + 48); + src += src_stride; + ref += ref_stride; + vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_00), + vget_low_u8(vec_ref_00)); + vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_00), + vget_high_u8(vec_ref_00)); + vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_16), + vget_low_u8(vec_ref_16)); + vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_16), + vget_high_u8(vec_ref_16)); + vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_32), + vget_low_u8(vec_ref_32)); + vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_32), + vget_high_u8(vec_ref_32)); + vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_48), + vget_low_u8(vec_ref_48)); + vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_48), + vget_high_u8(vec_ref_48)); + } + return horizontal_long_add_16x8(vec_accum_lo, vec_accum_hi); +} + +unsigned int vpx_sad32x32_neon(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride) { + int i; + uint16x8_t vec_accum_lo = vdupq_n_u16(0); + uint16x8_t vec_accum_hi = vdupq_n_u16(0); + + for (i = 0; i < 32; ++i) { + const uint8x16_t vec_src_00 = vld1q_u8(src); + const uint8x16_t vec_src_16 = vld1q_u8(src + 16); + const uint8x16_t vec_ref_00 = vld1q_u8(ref); + const uint8x16_t vec_ref_16 = vld1q_u8(ref + 16); + src += src_stride; + ref += ref_stride; + vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_00), + vget_low_u8(vec_ref_00)); + vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_00), + vget_high_u8(vec_ref_00)); + vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src_16), + vget_low_u8(vec_ref_16)); + vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src_16), + vget_high_u8(vec_ref_16)); + } + return horizontal_add_16x8(vaddq_u16(vec_accum_lo, vec_accum_hi)); +} + +unsigned int vpx_sad16x16_neon(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride) { + int i; + uint16x8_t vec_accum_lo = vdupq_n_u16(0); + uint16x8_t vec_accum_hi = vdupq_n_u16(0); + + for (i = 0; i < 16; ++i) { + const uint8x16_t vec_src = vld1q_u8(src); + const uint8x16_t vec_ref = vld1q_u8(ref); + src += src_stride; + ref += ref_stride; + vec_accum_lo = vabal_u8(vec_accum_lo, vget_low_u8(vec_src), + vget_low_u8(vec_ref)); + vec_accum_hi = vabal_u8(vec_accum_hi, vget_high_u8(vec_src), + vget_high_u8(vec_ref)); + } + return horizontal_add_16x8(vaddq_u16(vec_accum_lo, vec_accum_hi)); +} + +unsigned int vpx_sad8x8_neon(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride) { + int i; + uint16x8_t vec_accum = vdupq_n_u16(0); + + for (i = 0; i < 8; ++i) { + const uint8x8_t vec_src = vld1_u8(src); + const uint8x8_t vec_ref = vld1_u8(ref); + src += src_stride; + ref += ref_stride; + vec_accum = vabal_u8(vec_accum, vec_src, vec_ref); + } + return horizontal_add_16x8(vec_accum); +} |