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Diffstat (limited to 'vpx_dsp/arm/sse_neon_dotprod.c')
| -rw-r--r-- | vpx_dsp/arm/sse_neon_dotprod.c | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/vpx_dsp/arm/sse_neon_dotprod.c b/vpx_dsp/arm/sse_neon_dotprod.c new file mode 100644 index 000000000..877777391 --- /dev/null +++ b/vpx_dsp/arm/sse_neon_dotprod.c @@ -0,0 +1,197 @@ +/* + * Copyright (c) 2023 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_dsp_rtcd.h" +#include "vpx_dsp/arm/mem_neon.h" +#include "vpx_dsp/arm/sum_neon.h" + +static INLINE void sse_16x1_neon_dotprod(const uint8_t *src, const uint8_t *ref, + uint32x4_t *sse) { + uint8x16_t s = vld1q_u8(src); + uint8x16_t r = vld1q_u8(ref); + + uint8x16_t abs_diff = vabdq_u8(s, r); + + *sse = vdotq_u32(*sse, abs_diff, abs_diff); +} + +static INLINE void sse_8x1_neon_dotprod(const uint8_t *src, const uint8_t *ref, + uint32x2_t *sse) { + uint8x8_t s = vld1_u8(src); + uint8x8_t r = vld1_u8(ref); + + uint8x8_t abs_diff = vabd_u8(s, r); + + *sse = vdot_u32(*sse, abs_diff, abs_diff); +} + +static INLINE void sse_4x2_neon_dotprod(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + uint32x2_t *sse) { + uint8x8_t s = load_unaligned_u8(src, src_stride); + uint8x8_t r = load_unaligned_u8(ref, ref_stride); + + uint8x8_t abs_diff = vabd_u8(s, r); + + *sse = vdot_u32(*sse, abs_diff, abs_diff); +} + +static INLINE uint32_t sse_wxh_neon_dotprod(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + int width, int height) { + uint32x2_t sse[2] = { vdup_n_u32(0), vdup_n_u32(0) }; + + if ((width & 0x07) && ((width & 0x07) < 5)) { + int i = height; + do { + int j = 0; + do { + sse_8x1_neon_dotprod(src + j, ref + j, &sse[0]); + sse_8x1_neon_dotprod(src + j + src_stride, ref + j + ref_stride, + &sse[1]); + j += 8; + } while (j + 4 < width); + + sse_4x2_neon_dotprod(src + j, src_stride, ref + j, ref_stride, &sse[0]); + src += 2 * src_stride; + ref += 2 * ref_stride; + i -= 2; + } while (i != 0); + } else { + int i = height; + do { + int j = 0; + do { + sse_8x1_neon_dotprod(src + j, ref + j, &sse[0]); + sse_8x1_neon_dotprod(src + j + src_stride, ref + j + ref_stride, + &sse[1]); + j += 8; + } while (j < width); + + src += 2 * src_stride; + ref += 2 * ref_stride; + i -= 2; + } while (i != 0); + } + return horizontal_add_uint32x4(vcombine_u32(sse[0], sse[1])); +} + +static INLINE uint32_t sse_64xh_neon_dotprod(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + int height) { + uint32x4_t sse[2] = { vdupq_n_u32(0), vdupq_n_u32(0) }; + + int i = height; + do { + sse_16x1_neon_dotprod(src, ref, &sse[0]); + sse_16x1_neon_dotprod(src + 16, ref + 16, &sse[1]); + sse_16x1_neon_dotprod(src + 32, ref + 32, &sse[0]); + sse_16x1_neon_dotprod(src + 48, ref + 48, &sse[1]); + + src += src_stride; + ref += ref_stride; + } while (--i != 0); + + return horizontal_add_uint32x4(vaddq_u32(sse[0], sse[1])); +} + +static INLINE uint32_t sse_32xh_neon_dotprod(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + int height) { + uint32x4_t sse[2] = { vdupq_n_u32(0), vdupq_n_u32(0) }; + + int i = height; + do { + sse_16x1_neon_dotprod(src, ref, &sse[0]); + sse_16x1_neon_dotprod(src + 16, ref + 16, &sse[1]); + + src += src_stride; + ref += ref_stride; + } while (--i != 0); + + return horizontal_add_uint32x4(vaddq_u32(sse[0], sse[1])); +} + +static INLINE uint32_t sse_16xh_neon_dotprod(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + int height) { + uint32x4_t sse[2] = { vdupq_n_u32(0), vdupq_n_u32(0) }; + + int i = height; + do { + sse_16x1_neon_dotprod(src, ref, &sse[0]); + src += src_stride; + ref += ref_stride; + sse_16x1_neon_dotprod(src, ref, &sse[1]); + src += src_stride; + ref += ref_stride; + i -= 2; + } while (i != 0); + + return horizontal_add_uint32x4(vaddq_u32(sse[0], sse[1])); +} + +static INLINE uint32_t sse_8xh_neon_dotprod(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + int height) { + uint32x2_t sse[2] = { vdup_n_u32(0), vdup_n_u32(0) }; + + int i = height; + do { + sse_8x1_neon_dotprod(src, ref, &sse[0]); + src += src_stride; + ref += ref_stride; + sse_8x1_neon_dotprod(src, ref, &sse[1]); + src += src_stride; + ref += ref_stride; + i -= 2; + } while (i != 0); + + return horizontal_add_uint32x4(vcombine_u32(sse[0], sse[1])); +} + +static INLINE uint32_t sse_4xh_neon_dotprod(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + int height) { + uint32x2_t sse = vdup_n_u32(0); + + int i = height; + do { + sse_4x2_neon_dotprod(src, src_stride, ref, ref_stride, &sse); + + src += 2 * src_stride; + ref += 2 * ref_stride; + i -= 2; + } while (i != 0); + + return horizontal_add_uint32x2(sse); +} + +int64_t vpx_sse_neon_dotprod(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, int width, + int height) { + switch (width) { + case 4: + return sse_4xh_neon_dotprod(src, src_stride, ref, ref_stride, height); + case 8: + return sse_8xh_neon_dotprod(src, src_stride, ref, ref_stride, height); + case 16: + return sse_16xh_neon_dotprod(src, src_stride, ref, ref_stride, height); + case 32: + return sse_32xh_neon_dotprod(src, src_stride, ref, ref_stride, height); + case 64: + return sse_64xh_neon_dotprod(src, src_stride, ref, ref_stride, height); + default: + return sse_wxh_neon_dotprod(src, src_stride, ref, ref_stride, width, + height); + } +} |