| /* |
| * 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_dsp_rtcd.h" |
| #include "./vpx_config.h" |
| |
| #include "vpx/vpx_integer.h" |
| #include "vpx_ports/mem.h" |
| |
| static INLINE int horizontal_add_s16x8(const int16x8_t v_16x8) { |
| const int32x4_t a = vpaddlq_s16(v_16x8); |
| const int64x2_t b = vpaddlq_s32(a); |
| const int32x2_t c = vadd_s32(vreinterpret_s32_s64(vget_low_s64(b)), |
| vreinterpret_s32_s64(vget_high_s64(b))); |
| return vget_lane_s32(c, 0); |
| } |
| |
| static INLINE int horizontal_add_s32x4(const int32x4_t v_32x4) { |
| const int64x2_t b = vpaddlq_s32(v_32x4); |
| const int32x2_t c = vadd_s32(vreinterpret_s32_s64(vget_low_s64(b)), |
| vreinterpret_s32_s64(vget_high_s64(b))); |
| return vget_lane_s32(c, 0); |
| } |
| |
| // w * h must be less than 2048 or local variable v_sum may overflow. |
| static void variance_neon_w8(const uint8_t *a, int a_stride, |
| const uint8_t *b, int b_stride, |
| int w, int h, uint32_t *sse, int *sum) { |
| int i, j; |
| int16x8_t v_sum = vdupq_n_s16(0); |
| int32x4_t v_sse_lo = vdupq_n_s32(0); |
| int32x4_t v_sse_hi = vdupq_n_s32(0); |
| |
| for (i = 0; i < h; ++i) { |
| for (j = 0; j < w; j += 8) { |
| const uint8x8_t v_a = vld1_u8(&a[j]); |
| const uint8x8_t v_b = vld1_u8(&b[j]); |
| const uint16x8_t v_diff = vsubl_u8(v_a, v_b); |
| const int16x8_t sv_diff = vreinterpretq_s16_u16(v_diff); |
| v_sum = vaddq_s16(v_sum, sv_diff); |
| v_sse_lo = vmlal_s16(v_sse_lo, |
| vget_low_s16(sv_diff), |
| vget_low_s16(sv_diff)); |
| v_sse_hi = vmlal_s16(v_sse_hi, |
| vget_high_s16(sv_diff), |
| vget_high_s16(sv_diff)); |
| } |
| a += a_stride; |
| b += b_stride; |
| } |
| |
| *sum = horizontal_add_s16x8(v_sum); |
| *sse = (unsigned int)horizontal_add_s32x4(vaddq_s32(v_sse_lo, v_sse_hi)); |
| } |
| |
| void vpx_get8x8var_neon(const uint8_t *a, int a_stride, |
| const uint8_t *b, int b_stride, |
| unsigned int *sse, int *sum) { |
| variance_neon_w8(a, a_stride, b, b_stride, 8, 8, sse, sum); |
| } |
| |
| void vpx_get16x16var_neon(const uint8_t *a, int a_stride, |
| const uint8_t *b, int b_stride, |
| unsigned int *sse, int *sum) { |
| variance_neon_w8(a, a_stride, b, b_stride, 16, 16, sse, sum); |
| } |
| |
| unsigned int vpx_variance8x8_neon(const uint8_t *a, int a_stride, |
| const uint8_t *b, int b_stride, |
| unsigned int *sse) { |
| int sum; |
| variance_neon_w8(a, a_stride, b, b_stride, 8, 8, sse, &sum); |
| return *sse - (((int64_t)sum * sum) >> 6); // >> 6 = / 8 * 8 |
| } |
| |
| unsigned int vpx_variance16x16_neon(const uint8_t *a, int a_stride, |
| const uint8_t *b, int b_stride, |
| unsigned int *sse) { |
| int sum; |
| variance_neon_w8(a, a_stride, b, b_stride, 16, 16, sse, &sum); |
| return *sse - (((int64_t)sum * sum) >> 8); // >> 8 = / 16 * 16 |
| } |
| |
| unsigned int vpx_variance32x32_neon(const uint8_t *a, int a_stride, |
| const uint8_t *b, int b_stride, |
| unsigned int *sse) { |
| int sum; |
| variance_neon_w8(a, a_stride, b, b_stride, 32, 32, sse, &sum); |
| return *sse - (((int64_t)sum * sum) >> 10); // >> 10 = / 32 * 32 |
| } |
| |
| unsigned int vpx_variance32x64_neon(const uint8_t *a, int a_stride, |
| const uint8_t *b, int b_stride, |
| unsigned int *sse) { |
| int sum1, sum2; |
| uint32_t sse1, sse2; |
| variance_neon_w8(a, a_stride, b, b_stride, 32, 32, &sse1, &sum1); |
| variance_neon_w8(a + (32 * a_stride), a_stride, |
| b + (32 * b_stride), b_stride, 32, 32, |
| &sse2, &sum2); |
| *sse = sse1 + sse2; |
| sum1 += sum2; |
| return *sse - (((int64_t)sum1 * sum1) >> 11); // >> 11 = / 32 * 64 |
| } |
| |
| unsigned int vpx_variance64x32_neon(const uint8_t *a, int a_stride, |
| const uint8_t *b, int b_stride, |
| unsigned int *sse) { |
| int sum1, sum2; |
| uint32_t sse1, sse2; |
| variance_neon_w8(a, a_stride, b, b_stride, 64, 16, &sse1, &sum1); |
| variance_neon_w8(a + (16 * a_stride), a_stride, |
| b + (16 * b_stride), b_stride, 64, 16, |
| &sse2, &sum2); |
| *sse = sse1 + sse2; |
| sum1 += sum2; |
| return *sse - (((int64_t)sum1 * sum1) >> 11); // >> 11 = / 32 * 64 |
| } |
| |
| unsigned int vpx_variance64x64_neon(const uint8_t *a, int a_stride, |
| const uint8_t *b, int b_stride, |
| unsigned int *sse) { |
| int sum1, sum2; |
| uint32_t sse1, sse2; |
| |
| variance_neon_w8(a, a_stride, b, b_stride, 64, 16, &sse1, &sum1); |
| variance_neon_w8(a + (16 * a_stride), a_stride, |
| b + (16 * b_stride), b_stride, 64, 16, |
| &sse2, &sum2); |
| sse1 += sse2; |
| sum1 += sum2; |
| |
| variance_neon_w8(a + (16 * 2 * a_stride), a_stride, |
| b + (16 * 2 * b_stride), b_stride, |
| 64, 16, &sse2, &sum2); |
| sse1 += sse2; |
| sum1 += sum2; |
| |
| variance_neon_w8(a + (16 * 3 * a_stride), a_stride, |
| b + (16 * 3 * b_stride), b_stride, |
| 64, 16, &sse2, &sum2); |
| *sse = sse1 + sse2; |
| sum1 += sum2; |
| return *sse - (((int64_t)sum1 * sum1) >> 12); // >> 12 = / 64 * 64 |
| } |
| |
| unsigned int vpx_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++) { |
| 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 vpx_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++) { |
| 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 vpx_mse16x16_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; |
| int64x1_t d0s64; |
| uint8x16_t q0u8, q1u8, q2u8, q3u8; |
| int32x4_t q7s32, q8s32, q9s32, q10s32; |
| uint16x8_t q11u16, q12u16, q13u16, q14u16; |
| int64x2_t q1s64; |
| |
| q7s32 = vdupq_n_s32(0); |
| q8s32 = vdupq_n_s32(0); |
| q9s32 = vdupq_n_s32(0); |
| q10s32 = vdupq_n_s32(0); |
| |
| for (i = 0; i < 8; i++) { // mse16x16_neon_loop |
| q0u8 = vld1q_u8(src_ptr); |
| src_ptr += source_stride; |
| q1u8 = vld1q_u8(src_ptr); |
| src_ptr += source_stride; |
| q2u8 = vld1q_u8(ref_ptr); |
| ref_ptr += recon_stride; |
| q3u8 = vld1q_u8(ref_ptr); |
| ref_ptr += recon_stride; |
| |
| 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)); |
| q7s32 = vmlal_s16(q7s32, d22s16, d22s16); |
| q8s32 = vmlal_s16(q8s32, d23s16, d23s16); |
| |
| d24s16 = vreinterpret_s16_u16(vget_low_u16(q12u16)); |
| d25s16 = vreinterpret_s16_u16(vget_high_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)); |
| q7s32 = vmlal_s16(q7s32, d26s16, d26s16); |
| q8s32 = vmlal_s16(q8s32, d27s16, d27s16); |
| |
| d28s16 = vreinterpret_s16_u16(vget_low_u16(q14u16)); |
| d29s16 = vreinterpret_s16_u16(vget_high_u16(q14u16)); |
| q9s32 = vmlal_s16(q9s32, d28s16, d28s16); |
| q10s32 = vmlal_s16(q10s32, d29s16, d29s16); |
| } |
| |
| q7s32 = vaddq_s32(q7s32, q8s32); |
| q9s32 = vaddq_s32(q9s32, q10s32); |
| q10s32 = vaddq_s32(q7s32, q9s32); |
| |
| q1s64 = vpaddlq_s32(q10s32); |
| d0s64 = vadd_s64(vget_low_s64(q1s64), vget_high_s64(q1s64)); |
| |
| vst1_lane_u32((uint32_t *)sse, vreinterpret_u32_s64(d0s64), 0); |
| return vget_lane_u32(vreinterpret_u32_s64(d0s64), 0); |
| } |
| |
| unsigned int vpx_get4x4sse_cs_neon( |
| const unsigned char *src_ptr, |
| int source_stride, |
| const unsigned char *ref_ptr, |
| int recon_stride) { |
| int16x4_t d22s16, d24s16, d26s16, d28s16; |
| int64x1_t d0s64; |
| uint8x8_t d0u8, d1u8, d2u8, d3u8, d4u8, d5u8, d6u8, d7u8; |
| int32x4_t q7s32, q8s32, q9s32, q10s32; |
| uint16x8_t q11u16, q12u16, q13u16, q14u16; |
| int64x2_t q1s64; |
| |
| d0u8 = vld1_u8(src_ptr); |
| src_ptr += source_stride; |
| d4u8 = vld1_u8(ref_ptr); |
| ref_ptr += recon_stride; |
| d1u8 = vld1_u8(src_ptr); |
| src_ptr += source_stride; |
| d5u8 = vld1_u8(ref_ptr); |
| ref_ptr += recon_stride; |
| d2u8 = vld1_u8(src_ptr); |
| src_ptr += source_stride; |
| d6u8 = vld1_u8(ref_ptr); |
| ref_ptr += recon_stride; |
| d3u8 = vld1_u8(src_ptr); |
| src_ptr += source_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 = vget_low_s16(vreinterpretq_s16_u16(q11u16)); |
| d24s16 = vget_low_s16(vreinterpretq_s16_u16(q12u16)); |
| d26s16 = vget_low_s16(vreinterpretq_s16_u16(q13u16)); |
| d28s16 = vget_low_s16(vreinterpretq_s16_u16(q14u16)); |
| |
| q7s32 = vmull_s16(d22s16, d22s16); |
| q8s32 = vmull_s16(d24s16, d24s16); |
| q9s32 = vmull_s16(d26s16, d26s16); |
| q10s32 = vmull_s16(d28s16, d28s16); |
| |
| q7s32 = vaddq_s32(q7s32, q8s32); |
| q9s32 = vaddq_s32(q9s32, q10s32); |
| q9s32 = vaddq_s32(q7s32, q9s32); |
| |
| q1s64 = vpaddlq_s32(q9s32); |
| d0s64 = vadd_s64(vget_low_s64(q1s64), vget_high_s64(q1s64)); |
| |
| return vget_lane_u32(vreinterpret_u32_s64(d0s64), 0); |
| } |
