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Diffstat (limited to '')
-rw-r--r-- | third_party/aom/aom_dsp/arm/variance_neon_dotprod.c | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/arm/variance_neon_dotprod.c b/third_party/aom/aom_dsp/arm/variance_neon_dotprod.c new file mode 100644 index 0000000000..9fb52e1df7 --- /dev/null +++ b/third_party/aom/aom_dsp/arm/variance_neon_dotprod.c @@ -0,0 +1,314 @@ +/* + * 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 "aom/aom_integer.h" +#include "aom_dsp/arm/mem_neon.h" +#include "aom_dsp/arm/sum_neon.h" +#include "aom_ports/mem.h" +#include "config/aom_config.h" +#include "config/aom_dsp_rtcd.h" + +static INLINE void variance_4xh_neon_dotprod(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + int h, uint32_t *sse, int *sum) { + uint32x4_t src_sum = vdupq_n_u32(0); + uint32x4_t ref_sum = vdupq_n_u32(0); + uint32x4_t sse_u32 = vdupq_n_u32(0); + + int i = h; + do { + uint8x16_t s = load_unaligned_u8q(src, src_stride); + uint8x16_t r = load_unaligned_u8q(ref, ref_stride); + + src_sum = vdotq_u32(src_sum, s, vdupq_n_u8(1)); + ref_sum = vdotq_u32(ref_sum, r, vdupq_n_u8(1)); + + uint8x16_t abs_diff = vabdq_u8(s, r); + sse_u32 = vdotq_u32(sse_u32, abs_diff, abs_diff); + + src += 4 * src_stride; + ref += 4 * ref_stride; + i -= 4; + } while (i != 0); + + int32x4_t sum_diff = + vsubq_s32(vreinterpretq_s32_u32(src_sum), vreinterpretq_s32_u32(ref_sum)); + *sum = horizontal_add_s32x4(sum_diff); + *sse = horizontal_add_u32x4(sse_u32); +} + +static INLINE void variance_8xh_neon_dotprod(const uint8_t *src, int src_stride, + const uint8_t *ref, int ref_stride, + int h, uint32_t *sse, int *sum) { + uint32x4_t src_sum = vdupq_n_u32(0); + uint32x4_t ref_sum = vdupq_n_u32(0); + uint32x4_t sse_u32 = vdupq_n_u32(0); + + int i = h; + do { + uint8x16_t s = vcombine_u8(vld1_u8(src), vld1_u8(src + src_stride)); + uint8x16_t r = vcombine_u8(vld1_u8(ref), vld1_u8(ref + ref_stride)); + + src_sum = vdotq_u32(src_sum, s, vdupq_n_u8(1)); + ref_sum = vdotq_u32(ref_sum, r, vdupq_n_u8(1)); + + uint8x16_t abs_diff = vabdq_u8(s, r); + sse_u32 = vdotq_u32(sse_u32, abs_diff, abs_diff); + + src += 2 * src_stride; + ref += 2 * ref_stride; + i -= 2; + } while (i != 0); + + int32x4_t sum_diff = + vsubq_s32(vreinterpretq_s32_u32(src_sum), vreinterpretq_s32_u32(ref_sum)); + *sum = horizontal_add_s32x4(sum_diff); + *sse = horizontal_add_u32x4(sse_u32); +} + +static INLINE void variance_16xh_neon_dotprod(const uint8_t *src, + int src_stride, + const uint8_t *ref, + int ref_stride, int h, + uint32_t *sse, int *sum) { + uint32x4_t src_sum = vdupq_n_u32(0); + uint32x4_t ref_sum = vdupq_n_u32(0); + uint32x4_t sse_u32 = vdupq_n_u32(0); + + int i = h; + do { + uint8x16_t s = vld1q_u8(src); + uint8x16_t r = vld1q_u8(ref); + + src_sum = vdotq_u32(src_sum, s, vdupq_n_u8(1)); + ref_sum = vdotq_u32(ref_sum, r, vdupq_n_u8(1)); + + uint8x16_t abs_diff = vabdq_u8(s, r); + sse_u32 = vdotq_u32(sse_u32, abs_diff, abs_diff); + + src += src_stride; + ref += ref_stride; + } while (--i != 0); + + int32x4_t sum_diff = + vsubq_s32(vreinterpretq_s32_u32(src_sum), vreinterpretq_s32_u32(ref_sum)); + *sum = horizontal_add_s32x4(sum_diff); + *sse = horizontal_add_u32x4(sse_u32); +} + +static INLINE void variance_large_neon_dotprod(const uint8_t *src, + int src_stride, + const uint8_t *ref, + int ref_stride, int w, int h, + uint32_t *sse, int *sum) { + uint32x4_t src_sum = vdupq_n_u32(0); + uint32x4_t ref_sum = vdupq_n_u32(0); + uint32x4_t sse_u32 = vdupq_n_u32(0); + + int i = h; + do { + int j = 0; + do { + uint8x16_t s = vld1q_u8(src + j); + uint8x16_t r = vld1q_u8(ref + j); + + src_sum = vdotq_u32(src_sum, s, vdupq_n_u8(1)); + ref_sum = vdotq_u32(ref_sum, r, vdupq_n_u8(1)); + + uint8x16_t abs_diff = vabdq_u8(s, r); + sse_u32 = vdotq_u32(sse_u32, abs_diff, abs_diff); + + j += 16; + } while (j < w); + + src += src_stride; + ref += ref_stride; + } while (--i != 0); + + int32x4_t sum_diff = + vsubq_s32(vreinterpretq_s32_u32(src_sum), vreinterpretq_s32_u32(ref_sum)); + *sum = horizontal_add_s32x4(sum_diff); + *sse = horizontal_add_u32x4(sse_u32); +} + +static INLINE void variance_32xh_neon_dotprod(const uint8_t *src, + int src_stride, + const uint8_t *ref, + int ref_stride, int h, + uint32_t *sse, int *sum) { + variance_large_neon_dotprod(src, src_stride, ref, ref_stride, 32, h, sse, + sum); +} + +static INLINE void variance_64xh_neon_dotprod(const uint8_t *src, + int src_stride, + const uint8_t *ref, + int ref_stride, int h, + uint32_t *sse, int *sum) { + variance_large_neon_dotprod(src, src_stride, ref, ref_stride, 64, h, sse, + sum); +} + +static INLINE void variance_128xh_neon_dotprod(const uint8_t *src, + int src_stride, + const uint8_t *ref, + int ref_stride, int h, + uint32_t *sse, int *sum) { + variance_large_neon_dotprod(src, src_stride, ref, ref_stride, 128, h, sse, + sum); +} + +#define VARIANCE_WXH_NEON_DOTPROD(w, h, shift) \ + unsigned int aom_variance##w##x##h##_neon_dotprod( \ + const uint8_t *src, int src_stride, const uint8_t *ref, int ref_stride, \ + unsigned int *sse) { \ + int sum; \ + variance_##w##xh_neon_dotprod(src, src_stride, ref, ref_stride, h, sse, \ + &sum); \ + return *sse - (uint32_t)(((int64_t)sum * sum) >> shift); \ + } + +VARIANCE_WXH_NEON_DOTPROD(4, 4, 4) +VARIANCE_WXH_NEON_DOTPROD(4, 8, 5) +VARIANCE_WXH_NEON_DOTPROD(4, 16, 6) + +VARIANCE_WXH_NEON_DOTPROD(8, 4, 5) +VARIANCE_WXH_NEON_DOTPROD(8, 8, 6) +VARIANCE_WXH_NEON_DOTPROD(8, 16, 7) +VARIANCE_WXH_NEON_DOTPROD(8, 32, 8) + +VARIANCE_WXH_NEON_DOTPROD(16, 4, 6) +VARIANCE_WXH_NEON_DOTPROD(16, 8, 7) +VARIANCE_WXH_NEON_DOTPROD(16, 16, 8) +VARIANCE_WXH_NEON_DOTPROD(16, 32, 9) +VARIANCE_WXH_NEON_DOTPROD(16, 64, 10) + +VARIANCE_WXH_NEON_DOTPROD(32, 8, 8) +VARIANCE_WXH_NEON_DOTPROD(32, 16, 9) +VARIANCE_WXH_NEON_DOTPROD(32, 32, 10) +VARIANCE_WXH_NEON_DOTPROD(32, 64, 11) + +VARIANCE_WXH_NEON_DOTPROD(64, 16, 10) +VARIANCE_WXH_NEON_DOTPROD(64, 32, 11) +VARIANCE_WXH_NEON_DOTPROD(64, 64, 12) +VARIANCE_WXH_NEON_DOTPROD(64, 128, 13) + +VARIANCE_WXH_NEON_DOTPROD(128, 64, 13) +VARIANCE_WXH_NEON_DOTPROD(128, 128, 14) + +#undef VARIANCE_WXH_NEON_DOTPROD + +void aom_get_var_sse_sum_8x8_quad_neon_dotprod( + const uint8_t *src, int src_stride, const uint8_t *ref, int ref_stride, + uint32_t *sse8x8, int *sum8x8, unsigned int *tot_sse, int *tot_sum, + uint32_t *var8x8) { + // Loop over four 8x8 blocks. Process one 8x32 block. + for (int k = 0; k < 4; k++) { + variance_8xh_neon_dotprod(src + (k * 8), src_stride, ref + (k * 8), + ref_stride, 8, &sse8x8[k], &sum8x8[k]); + } + + *tot_sse += sse8x8[0] + sse8x8[1] + sse8x8[2] + sse8x8[3]; + *tot_sum += sum8x8[0] + sum8x8[1] + sum8x8[2] + sum8x8[3]; + for (int i = 0; i < 4; i++) { + var8x8[i] = sse8x8[i] - (uint32_t)(((int64_t)sum8x8[i] * sum8x8[i]) >> 6); + } +} + +void aom_get_var_sse_sum_16x16_dual_neon_dotprod( + const uint8_t *src, int src_stride, const uint8_t *ref, int ref_stride, + uint32_t *sse16x16, unsigned int *tot_sse, int *tot_sum, + uint32_t *var16x16) { + int sum16x16[2] = { 0 }; + // Loop over two 16x16 blocks. Process one 16x32 block. + for (int k = 0; k < 2; k++) { + variance_16xh_neon_dotprod(src + (k * 16), src_stride, ref + (k * 16), + ref_stride, 16, &sse16x16[k], &sum16x16[k]); + } + + *tot_sse += sse16x16[0] + sse16x16[1]; + *tot_sum += sum16x16[0] + sum16x16[1]; + for (int i = 0; i < 2; i++) { + var16x16[i] = + sse16x16[i] - (uint32_t)(((int64_t)sum16x16[i] * sum16x16[i]) >> 8); + } +} + +static INLINE unsigned int mse8xh_neon_dotprod(const uint8_t *src, + int src_stride, + const uint8_t *ref, + int ref_stride, + unsigned int *sse, int h) { + uint32x4_t sse_u32 = vdupq_n_u32(0); + + int i = h; + do { + uint8x16_t s = vcombine_u8(vld1_u8(src), vld1_u8(src + src_stride)); + uint8x16_t r = vcombine_u8(vld1_u8(ref), vld1_u8(ref + ref_stride)); + + uint8x16_t abs_diff = vabdq_u8(s, r); + + sse_u32 = vdotq_u32(sse_u32, abs_diff, abs_diff); + + src += 2 * src_stride; + ref += 2 * ref_stride; + i -= 2; + } while (i != 0); + + *sse = horizontal_add_u32x4(sse_u32); + return horizontal_add_u32x4(sse_u32); +} + +static INLINE unsigned int mse16xh_neon_dotprod(const uint8_t *src, + int src_stride, + const uint8_t *ref, + int ref_stride, + unsigned int *sse, int h) { + uint32x4_t sse_u32[2] = { vdupq_n_u32(0), vdupq_n_u32(0) }; + + int i = h; + do { + uint8x16_t s0 = vld1q_u8(src); + uint8x16_t s1 = vld1q_u8(src + src_stride); + uint8x16_t r0 = vld1q_u8(ref); + uint8x16_t r1 = vld1q_u8(ref + ref_stride); + + uint8x16_t abs_diff0 = vabdq_u8(s0, r0); + uint8x16_t abs_diff1 = vabdq_u8(s1, r1); + + sse_u32[0] = vdotq_u32(sse_u32[0], abs_diff0, abs_diff0); + sse_u32[1] = vdotq_u32(sse_u32[1], abs_diff1, abs_diff1); + + src += 2 * src_stride; + ref += 2 * ref_stride; + i -= 2; + } while (i != 0); + + *sse = horizontal_add_u32x4(vaddq_u32(sse_u32[0], sse_u32[1])); + return horizontal_add_u32x4(vaddq_u32(sse_u32[0], sse_u32[1])); +} + +#define MSE_WXH_NEON_DOTPROD(w, h) \ + unsigned int aom_mse##w##x##h##_neon_dotprod( \ + const uint8_t *src, int src_stride, const uint8_t *ref, int ref_stride, \ + unsigned int *sse) { \ + return mse##w##xh_neon_dotprod(src, src_stride, ref, ref_stride, sse, h); \ + } + +MSE_WXH_NEON_DOTPROD(8, 8) +MSE_WXH_NEON_DOTPROD(8, 16) + +MSE_WXH_NEON_DOTPROD(16, 8) +MSE_WXH_NEON_DOTPROD(16, 16) + +#undef MSE_WXH_NEON_DOTPROD |