| /* |
| * Copyright (c) 2025, 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 <assert.h> |
| #include <riscv_vector.h> |
| |
| #include "config/aom_config.h" |
| #include "config/av1_rtcd.h" |
| |
| #include "aom_dsp/aom_dsp_common.h" |
| #include "aom_ports/mem.h" |
| #include "av1/common/convolve.h" |
| #include "av1/common/filter.h" |
| #include "av1/common/riscv/convolve_rvv.h" |
| |
| static inline vuint8mf2_t convolve12_4_x_rvv( |
| const vint16m1_t s0, const vint16m1_t s1, const vint16m1_t s2, |
| const vint16m1_t s3, const vint16m1_t s4, const vint16m1_t s5, |
| const vint16m1_t s6, const vint16m1_t s7, const vint16m1_t s8, |
| const vint16m1_t s9, const vint16m1_t s10, const vint16m1_t s11, |
| const int16_t *filter, const int32_t horiz_const, size_t vl) { |
| vint32m2_t sum = __riscv_vwmul_vx_i32m2(s0, filter[0], vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, filter[1], s1, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, filter[2], s2, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, filter[3], s3, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, filter[4], s4, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, filter[5], s5, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, filter[6], s6, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, filter[7], s7, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, filter[8], s8, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, filter[9], s9, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, filter[10], s10, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, filter[11], s11, vl); |
| sum = __riscv_vwadd_wx_i32m2(sum, horiz_const + (1 << (FILTER_BITS - 1)), vl); |
| |
| // Round and shift |
| vint16m1_t i16_sum = __riscv_vnsra_wx_i16m1(sum, FILTER_BITS, vl); |
| vint16m1_t iclip_sum = |
| __riscv_vmin_vx_i16m1(__riscv_vmax_vx_i16m1(i16_sum, 0, vl), 255, vl); |
| |
| // Convert to 8-bit |
| return __riscv_vncvt_x_x_w_u8mf2( |
| __riscv_vreinterpret_v_i16m1_u16m1(iclip_sum), vl); |
| } |
| |
| static inline void convolve_x_sr_12tap_rvv(const uint8_t *src_ptr, |
| int src_stride, uint8_t *dst_ptr, |
| const int dst_stride, int w, int h, |
| const int16_t *x_filter_ptr) { |
| const int32_t horiz_const = (1 << (ROUND0_BITS - 1)); |
| size_t vl = __riscv_vsetvl_e16m1(w); |
| |
| do { |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| int width = w; |
| |
| do { |
| // Load |
| vuint8mf2_t t0 = __riscv_vle8_v_u8mf2(s + 0, vl); |
| vuint8mf2_t t1 = __riscv_vle8_v_u8mf2(s + 1, vl); |
| vuint8mf2_t t2 = __riscv_vle8_v_u8mf2(s + 2, vl); |
| vuint8mf2_t t3 = __riscv_vle8_v_u8mf2(s + 3, vl); |
| vuint8mf2_t t4 = __riscv_vle8_v_u8mf2(s + 4, vl); |
| vuint8mf2_t t5 = __riscv_vle8_v_u8mf2(s + 5, vl); |
| vuint8mf2_t t6 = __riscv_vle8_v_u8mf2(s + 6, vl); |
| vuint8mf2_t t7 = __riscv_vle8_v_u8mf2(s + 7, vl); |
| vuint8mf2_t t8 = __riscv_vle8_v_u8mf2(s + 8, vl); |
| vuint8mf2_t t9 = __riscv_vle8_v_u8mf2(s + 9, vl); |
| vuint8mf2_t t10 = __riscv_vle8_v_u8mf2(s + 10, vl); |
| vuint8mf2_t t11 = __riscv_vle8_v_u8mf2(s + 11, vl); |
| |
| // Convert to 16-bit integers |
| vint16m1_t s0 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t0, vl)); |
| vint16m1_t s1 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t1, vl)); |
| vint16m1_t s2 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl)); |
| vint16m1_t s3 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t3, vl)); |
| vint16m1_t s4 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t4, vl)); |
| vint16m1_t s5 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t5, vl)); |
| vint16m1_t s6 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t6, vl)); |
| vint16m1_t s7 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t7, vl)); |
| vint16m1_t s8 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t8, vl)); |
| vint16m1_t s9 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t9, vl)); |
| vint16m1_t s10 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t10, vl)); |
| vint16m1_t s11 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t11, vl)); |
| |
| // Perform convolution |
| vuint8mf2_t d0 = |
| convolve12_4_x_rvv(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| x_filter_ptr, horiz_const, vl); |
| |
| // Store result |
| __riscv_vse8_v_u8mf2(d, d0, vl); |
| |
| s += vl; |
| d += vl; |
| width -= vl; |
| } while (width != 0); |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| } while (--h != 0); |
| } |
| |
| static inline vuint8mf2_t convolve4_8_x_rvv( |
| const vint16m1_t s0, const vint16m1_t s1, const vint16m1_t s2, |
| const vint16m1_t s3, const int16_t *filter, const int16_t horiz_const, |
| size_t vl) { |
| vint16m1_t sum = __riscv_vmul_vx_i16m1(s0, filter[0], vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[1], s1, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[2], s2, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[3], s3, vl); |
| sum = __riscv_vadd_vx_i16m1(sum, horiz_const, vl); |
| |
| // Round and shift |
| // We halved the filter values so -1 from right shift |
| vuint16m1_t d0 = |
| __riscv_vreinterpret_v_i16m1_u16m1(__riscv_vmax_vx_i16m1(sum, 0, vl)); |
| |
| return __riscv_vnclipu_wx_u8mf2(d0, FILTER_BITS - 1, __RISCV_VXRM_RNU, vl); |
| } |
| |
| static inline void load_u8_8x4(const uint8_t *s, const ptrdiff_t p, |
| vuint8mf2_t *const s0, vuint8mf2_t *const s1, |
| vuint8mf2_t *const s2, vuint8mf2_t *const s3, |
| size_t vl) { |
| *s0 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s1 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s2 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s3 = __riscv_vle8_v_u8mf2(s, vl); |
| } |
| |
| static inline void store_u8_8x2(uint8_t *s, ptrdiff_t p, const vuint8mf2_t s0, |
| const vuint8mf2_t s1, size_t vl) { |
| __riscv_vse8_v_u8mf2(s, s0, vl); |
| s += p; |
| __riscv_vse8_v_u8mf2(s, s1, vl); |
| } |
| |
| static inline void convolve_x_sr_4tap_rvv(const uint8_t *src_ptr, |
| int src_stride, uint8_t *dst_ptr, |
| const int dst_stride, int w, int h, |
| const int16_t *x_filter_ptr) { |
| size_t vl; |
| const int16_t horiz_const = (1 << ((ROUND0_BITS - 1) - 1)); |
| |
| // All filter values are even, halve to reduce intermediate precision |
| // requirements. |
| int16_t filter[4]; |
| for (int i = 0; i < 4; i++) filter[i] = x_filter_ptr[2 + i] >> 1; |
| |
| if (w == 4) { |
| vl = 8; |
| do { |
| // Load 8 pixels for each row |
| vuint8mf2_t t00, t01, t02, t03; |
| t00 = load_strided_u8_4xN((uint8_t *)src_ptr + 0, src_stride, vl); |
| t01 = load_strided_u8_4xN((uint8_t *)src_ptr + 1, src_stride, vl); |
| t02 = load_strided_u8_4xN((uint8_t *)src_ptr + 2, src_stride, vl); |
| t03 = load_strided_u8_4xN((uint8_t *)src_ptr + 3, src_stride, vl); |
| |
| // Convert to 16-bit integers |
| vint16m1_t s00, s01, s02, s03; |
| s00 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t00, vl)); |
| s01 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t01, vl)); |
| s02 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t02, vl)); |
| s03 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t03, vl)); |
| |
| // Perform convolution |
| vuint8mf2_t d01 = |
| convolve4_8_x_rvv(s00, s01, s02, s03, filter, horiz_const, vl); |
| |
| // Store result |
| store_strided_u8_4xN(dst_ptr + 0 * dst_stride, d01, dst_stride, vl); |
| |
| src_ptr += 2 * src_stride; |
| dst_ptr += 2 * dst_stride; |
| h -= 2; |
| } while (h != 0); |
| } else { |
| vl = __riscv_vsetvl_e16m1(w); |
| do { |
| int width = w; |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| |
| do { |
| vuint8mf2_t t00, t01, t02, t03; |
| vuint8mf2_t t10, t11, t12, t13; |
| load_u8_8x4(s + 0 * src_stride, 1, &t00, &t01, &t02, &t03, vl); |
| load_u8_8x4(s + 1 * src_stride, 1, &t10, &t11, &t12, &t13, vl); |
| |
| // Convert to 16-bit integers |
| vint16m1_t s00, s01, s02, s03; |
| s00 = __riscv_vreinterpret_v_u16m1_i16m1( |
| __riscv_vzext_vf2_u16m1(t00, vl)); |
| s01 = __riscv_vreinterpret_v_u16m1_i16m1( |
| __riscv_vzext_vf2_u16m1(t01, vl)); |
| s02 = __riscv_vreinterpret_v_u16m1_i16m1( |
| __riscv_vzext_vf2_u16m1(t02, vl)); |
| s03 = __riscv_vreinterpret_v_u16m1_i16m1( |
| __riscv_vzext_vf2_u16m1(t03, vl)); |
| |
| vint16m1_t s10, s11, s12, s13; |
| s10 = __riscv_vreinterpret_v_u16m1_i16m1( |
| __riscv_vzext_vf2_u16m1(t10, vl)); |
| s11 = __riscv_vreinterpret_v_u16m1_i16m1( |
| __riscv_vzext_vf2_u16m1(t11, vl)); |
| s12 = __riscv_vreinterpret_v_u16m1_i16m1( |
| __riscv_vzext_vf2_u16m1(t12, vl)); |
| s13 = __riscv_vreinterpret_v_u16m1_i16m1( |
| __riscv_vzext_vf2_u16m1(t13, vl)); |
| |
| // Perform convolution |
| vuint8mf2_t d0 = |
| convolve4_8_x_rvv(s00, s01, s02, s03, filter, horiz_const, vl); |
| vuint8mf2_t d1 = |
| convolve4_8_x_rvv(s10, s11, s12, s13, filter, horiz_const, vl); |
| |
| // Store result |
| store_u8_8x2(d, dst_stride, d0, d1, vl); |
| |
| s += vl; |
| d += vl; |
| width -= vl; |
| } while (width > 0); |
| src_ptr += 2 * src_stride; |
| dst_ptr += 2 * dst_stride; |
| h -= 2; |
| } while (h != 0); |
| } |
| } |
| |
| static inline vuint8mf2_t convolve8_8_x_rvv( |
| const vint16m1_t s0, const vint16m1_t s1, const vint16m1_t s2, |
| const vint16m1_t s3, const vint16m1_t s4, const vint16m1_t s5, |
| const vint16m1_t s6, const vint16m1_t s7, const int16_t *filter, |
| const int16_t horiz_const, size_t vl) { |
| vint16m1_t sum = __riscv_vmul_vx_i16m1(s0, filter[0], vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[1], s1, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[2], s2, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[3], s3, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[4], s4, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[5], s5, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[6], s6, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[7], s7, vl); |
| sum = __riscv_vadd_vx_i16m1(sum, horiz_const, vl); |
| |
| // Round and shift |
| // We halved the filter values so -1 from right shift |
| vuint16m1_t d0 = |
| __riscv_vreinterpret_v_i16m1_u16m1(__riscv_vmax_vx_i16m1(sum, 0, vl)); |
| |
| return __riscv_vnclipu_wx_u8mf2(d0, FILTER_BITS - 1, __RISCV_VXRM_RNU, vl); |
| } |
| |
| static inline void load_u8_8x8(const uint8_t *s, int p, vuint8mf2_t *const s0, |
| vuint8mf2_t *const s1, vuint8mf2_t *const s2, |
| vuint8mf2_t *const s3, vuint8mf2_t *const s4, |
| vuint8mf2_t *const s5, vuint8mf2_t *const s6, |
| vuint8mf2_t *const s7, size_t vl) { |
| *s0 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s1 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s2 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s3 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s4 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s5 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s6 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s7 = __riscv_vle8_v_u8mf2(s, vl); |
| } |
| |
| static inline void convolve_x_sr_8tap_rvv(const uint8_t *src_ptr, |
| int src_stride, uint8_t *dst_ptr, |
| const int dst_stride, int w, int h, |
| const int16_t *x_filter_ptr) { |
| // This shim of 1 << ((ROUND0_BITS - 1) - 1) enables us to use a single |
| // rounding right shift by FILTER_BITS - instead of a first rounding right |
| // shift by ROUND0_BITS, followed by second rounding right shift by |
| // FILTER_BITS - ROUND0_BITS. |
| // The outermost -1 is needed because we will halve the filter values. |
| const int32_t horiz_const = 1 << ((ROUND0_BITS - 1) - 1); |
| |
| // Filter values are even so halve to reduce precision requirements. |
| int16_t filter[8]; |
| for (int i = 0; i < 8; i++) filter[i] = x_filter_ptr[i] >> 1; |
| |
| size_t vl = __riscv_vsetvl_e16m1(w); |
| while (h-- != 0) { |
| int width = w; |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| |
| do { |
| // Load |
| vuint8mf2_t t0, t1, t2, t3, t4, t5, t6, t7; |
| load_u8_8x8(s, 1, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7, vl); |
| |
| // Convert to 16-bit integers |
| vint16m1_t s0 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t0, vl)); |
| vint16m1_t s1 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t1, vl)); |
| vint16m1_t s2 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl)); |
| vint16m1_t s3 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t3, vl)); |
| vint16m1_t s4 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t4, vl)); |
| vint16m1_t s5 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t5, vl)); |
| vint16m1_t s6 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t6, vl)); |
| vint16m1_t s7 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t7, vl)); |
| |
| // Perform convolution |
| vuint8mf2_t d0 = convolve8_8_x_rvv(s0, s1, s2, s3, s4, s5, s6, s7, filter, |
| horiz_const, vl); |
| |
| // Store result |
| __riscv_vse8_v_u8mf2(d, d0, vl); |
| |
| s += vl; |
| d += vl; |
| width -= vl; |
| } while (width > 0); |
| src_ptr += src_stride; |
| dst_ptr += dst_stride; |
| } |
| } |
| |
| void av1_convolve_x_sr_rvv(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| const InterpFilterParams *filter_params_x, |
| const int subpel_x_qn, ConvolveParams *conv_params) { |
| if (w == 2 || h == 2) { |
| av1_convolve_x_sr_c(src, src_stride, dst, dst_stride, w, h, filter_params_x, |
| subpel_x_qn, conv_params); |
| return; |
| } |
| |
| int filter_taps = get_filter_tap(filter_params_x, subpel_x_qn & SUBPEL_MASK); |
| const uint8_t horiz_offset = filter_params_x->taps / 2 - 1; |
| const uint8_t *src_rvv = src - horiz_offset; |
| |
| const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel( |
| filter_params_x, subpel_x_qn & SUBPEL_MASK); |
| |
| if (filter_taps > 8) { |
| convolve_x_sr_12tap_rvv(src_rvv, src_stride, dst, dst_stride, w, h, |
| x_filter_ptr); |
| return; |
| } |
| |
| if (filter_taps <= 4) { |
| convolve_x_sr_4tap_rvv(src_rvv + 2, src_stride, dst, dst_stride, w, h, |
| x_filter_ptr); |
| return; |
| } |
| |
| convolve_x_sr_8tap_rvv(src_rvv, src_stride, dst, dst_stride, w, h, |
| x_filter_ptr); |
| return; |
| } |
| |
| static inline void store_u8_8x4(uint8_t *s, int p, const vuint8mf2_t s0, |
| const vuint8mf2_t s1, const vuint8mf2_t s2, |
| const vuint8mf2_t s3, size_t vl) { |
| __riscv_vse8_v_u8mf2(s, s0, vl); |
| s += p; |
| __riscv_vse8_v_u8mf2(s, s1, vl); |
| s += p; |
| __riscv_vse8_v_u8mf2(s, s2, vl); |
| s += p; |
| __riscv_vse8_v_u8mf2(s, s3, vl); |
| } |
| |
| static inline vuint8mf2_t convolve4_8_y_rvv(const vint16m1_t s0, |
| const vint16m1_t s1, |
| const vint16m1_t s2, |
| const vint16m1_t s3, |
| const int16_t *filter, size_t vl) { |
| vint16m1_t sum = __riscv_vmul_vx_i16m1(s0, filter[0], vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[1], s1, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[2], s2, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[3], s3, vl); |
| |
| // Round and shift |
| // We halved the filter values so -1 from right shift |
| vuint16m1_t d0 = |
| __riscv_vreinterpret_v_i16m1_u16m1(__riscv_vmax_vx_i16m1(sum, 0, vl)); |
| |
| return __riscv_vnclipu_wx_u8mf2(d0, FILTER_BITS - 1, __RISCV_VXRM_RNU, vl); |
| } |
| |
| static inline void convolve_y_sr_4tap_rvv(const uint8_t *src, |
| const int src_stride, uint8_t *dst, |
| const int dst_stride, int w, int h, |
| const int16_t *filter_y) { |
| const int16_t *filter = filter_y + 2; |
| |
| if (w == 4) { |
| size_t vl = 8; |
| |
| // Load initial data |
| vuint8mf2_t t01 = |
| load_strided_u8_4xN((uint8_t *)src + 0 * src_stride, src_stride, vl); |
| vuint8mf2_t t12 = |
| load_strided_u8_4xN((uint8_t *)src + 1 * src_stride, src_stride, vl); |
| |
| // Convert to 16-bit |
| vint16m1_t s01 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t01, vl)); |
| vint16m1_t s12 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t12, vl)); |
| |
| src += 2 * src_stride; |
| |
| do { |
| // Load next set of data |
| vuint8mf2_t t23 = |
| load_strided_u8_4xN((uint8_t *)src + 0 * src_stride, src_stride, vl); |
| vuint8mf2_t t34 = |
| load_strided_u8_4xN((uint8_t *)src + 1 * src_stride, src_stride, vl); |
| vuint8mf2_t t45 = |
| load_strided_u8_4xN((uint8_t *)src + 2 * src_stride, src_stride, vl); |
| vuint8mf2_t t56 = |
| load_strided_u8_4xN((uint8_t *)src + 3 * src_stride, src_stride, vl); |
| |
| // Convert to 16-bit |
| vint16m1_t s23 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t23, vl)); |
| vint16m1_t s34 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t34, vl)); |
| vint16m1_t s45 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t45, vl)); |
| vint16m1_t s56 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t56, vl)); |
| |
| // Perform convolution |
| vuint8mf2_t d01 = convolve4_8_y_rvv(s01, s12, s23, s34, filter, vl); |
| vuint8mf2_t d23 = convolve4_8_y_rvv(s23, s34, s45, s56, filter, vl); |
| |
| // Store results |
| store_strided_u8_4xN(dst + 0 * dst_stride, d01, dst_stride, vl); |
| store_strided_u8_4xN(dst + 2 * dst_stride, d23, dst_stride, vl); |
| |
| s01 = __riscv_vmv_v_v_i16m1(s45, vl); |
| s12 = __riscv_vmv_v_v_i16m1(s56, vl); |
| |
| src += 4 * src_stride; |
| dst += 4 * dst_stride; |
| h -= 4; |
| } while (h != 0); |
| } else { |
| // Handle width > 4 case |
| size_t vl = __riscv_vsetvl_e16m1(w); |
| do { |
| // Load initial 3 rows of data |
| vuint8mf2_t t0 = __riscv_vle8_v_u8mf2(src + 0 * src_stride, vl); |
| vuint8mf2_t t1 = __riscv_vle8_v_u8mf2(src + 1 * src_stride, vl); |
| vuint8mf2_t t2 = __riscv_vle8_v_u8mf2(src + 2 * src_stride, vl); |
| |
| // Convert to 16-bit |
| vint16m1_t s0 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t0, vl)); |
| vint16m1_t s1 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t1, vl)); |
| vint16m1_t s2 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl)); |
| |
| int height = h; |
| const uint8_t *s = src + 3 * src_stride; |
| uint8_t *d = dst; |
| |
| do { |
| // Load next 4 rows of data |
| vuint8mf2_t t3; |
| load_u8_8x4(s, src_stride, &t0, &t1, &t2, &t3, vl); |
| |
| // Convert to 16-bit |
| vint16m1_t s3 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t0, vl)); |
| vint16m1_t s4 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t1, vl)); |
| vint16m1_t s5 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl)); |
| vint16m1_t s6 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t3, vl)); |
| |
| // Perform convolution |
| vuint8mf2_t d0 = convolve4_8_y_rvv(s0, s1, s2, s3, filter, vl); |
| vuint8mf2_t d1 = convolve4_8_y_rvv(s1, s2, s3, s4, filter, vl); |
| vuint8mf2_t d2 = convolve4_8_y_rvv(s2, s3, s4, s5, filter, vl); |
| vuint8mf2_t d3 = convolve4_8_y_rvv(s3, s4, s5, s6, filter, vl); |
| |
| // Store results |
| store_u8_8x4(d, dst_stride, d0, d1, d2, d3, vl); |
| |
| s0 = __riscv_vmv_v_v_i16m1(s4, vl); |
| s1 = __riscv_vmv_v_v_i16m1(s5, vl); |
| s2 = __riscv_vmv_v_v_i16m1(s6, vl); |
| |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| height -= 4; |
| } while (height != 0); |
| src += vl; |
| dst += vl; |
| w -= vl; |
| } while (w > 0); |
| } |
| } |
| |
| static inline void load_u8_8x5(const uint8_t *s, int p, vuint8mf2_t *const s0, |
| vuint8mf2_t *const s1, vuint8mf2_t *const s2, |
| vuint8mf2_t *const s3, vuint8mf2_t *const s4, |
| size_t vl) { |
| *s0 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s1 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s2 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s3 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s4 = __riscv_vle8_v_u8mf2(s, vl); |
| } |
| |
| static inline vuint8mf2_t convolve6_8_y_rvv( |
| const vint16m1_t s0, const vint16m1_t s1, const vint16m1_t s2, |
| const vint16m1_t s3, const vint16m1_t s4, const vint16m1_t s5, |
| const int16_t *filter, size_t vl) { |
| // Filter values at indices 0 and 7 are 0, so we start from index 1 |
| vint16m1_t sum = __riscv_vmul_vx_i16m1(s0, filter[1], vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[2], s1, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[3], s2, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[4], s3, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[5], s4, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[6], s5, vl); |
| |
| // Round and shift |
| // We halved the filter values so -1 from right shift |
| vuint16m1_t d0 = |
| __riscv_vreinterpret_v_i16m1_u16m1(__riscv_vmax_vx_i16m1(sum, 0, vl)); |
| |
| return __riscv_vnclipu_wx_u8mf2(d0, FILTER_BITS - 1, __RISCV_VXRM_RNU, vl); |
| } |
| |
| static inline void convolve_y_sr_6tap_rvv(const uint8_t *src_ptr, |
| int src_stride, uint8_t *dst_ptr, |
| const int dst_stride, int w, int h, |
| const int16_t *y_filter) { |
| size_t vl = __riscv_vsetvl_e16m1(w); |
| do { |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| int height = h; |
| |
| // Load initial 5 rows of data |
| vuint8mf2_t t0, t1, t2, t3, t4; |
| load_u8_8x5(s, src_stride, &t0, &t1, &t2, &t3, &t4, vl); |
| |
| // Convert to 16-bit |
| vint16m1_t s0 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t0, vl)); |
| vint16m1_t s1 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t1, vl)); |
| vint16m1_t s2 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl)); |
| vint16m1_t s3 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t3, vl)); |
| vint16m1_t s4 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t4, vl)); |
| |
| s += 5 * src_stride; |
| |
| do { |
| // Load next row of data |
| vuint8mf2_t t5 = __riscv_vle8_v_u8mf2(s + 0 * src_stride, vl); |
| vuint8mf2_t t6 = __riscv_vle8_v_u8mf2(s + 1 * src_stride, vl); |
| vuint8mf2_t t7 = __riscv_vle8_v_u8mf2(s + 2 * src_stride, vl); |
| vuint8mf2_t t8 = __riscv_vle8_v_u8mf2(s + 3 * src_stride, vl); |
| |
| // Convert to 16-bit |
| vint16m1_t s5 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t5, vl)); |
| vint16m1_t s6 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t6, vl)); |
| vint16m1_t s7 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t7, vl)); |
| vint16m1_t s8 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t8, vl)); |
| |
| // Perform convolution |
| vuint8mf2_t d0 = convolve6_8_y_rvv(s0, s1, s2, s3, s4, s5, y_filter, vl); |
| vuint8mf2_t d1 = convolve6_8_y_rvv(s1, s2, s3, s4, s5, s6, y_filter, vl); |
| vuint8mf2_t d2 = convolve6_8_y_rvv(s2, s3, s4, s5, s6, s7, y_filter, vl); |
| vuint8mf2_t d3 = convolve6_8_y_rvv(s3, s4, s5, s6, s7, s8, y_filter, vl); |
| |
| // Store result |
| store_u8_8x4(d, dst_stride, d0, d1, d2, d3, vl); |
| |
| // Update sliding window |
| s0 = __riscv_vmv_v_v_i16m1(s4, vl); |
| s1 = __riscv_vmv_v_v_i16m1(s5, vl); |
| s2 = __riscv_vmv_v_v_i16m1(s6, vl); |
| s3 = __riscv_vmv_v_v_i16m1(s7, vl); |
| s4 = __riscv_vmv_v_v_i16m1(s8, vl); |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| height -= 4; |
| } while (height != 0); |
| src_ptr += vl; |
| dst_ptr += vl; |
| w -= vl; |
| } while (w > 0); |
| } |
| |
| static inline void load_u8_8x7(const uint8_t *s, int p, vuint8mf2_t *const s0, |
| vuint8mf2_t *const s1, vuint8mf2_t *const s2, |
| vuint8mf2_t *const s3, vuint8mf2_t *const s4, |
| vuint8mf2_t *const s5, vuint8mf2_t *const s6, |
| size_t vl) { |
| *s0 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s1 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s2 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s3 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s4 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s5 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s6 = __riscv_vle8_v_u8mf2(s, vl); |
| } |
| |
| static inline vuint8mf2_t convolve8_8_y_rvv( |
| const vint16m1_t s0, const vint16m1_t s1, const vint16m1_t s2, |
| const vint16m1_t s3, const vint16m1_t s4, const vint16m1_t s5, |
| const vint16m1_t s6, const vint16m1_t s7, const int16_t *filter, |
| size_t vl) { |
| vint16m1_t sum = __riscv_vmul_vx_i16m1(s0, filter[0], vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[1], s1, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[2], s2, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[3], s3, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[4], s4, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[5], s5, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[6], s6, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, filter[7], s7, vl); |
| |
| // Round and shift |
| // We halved the filter values so -1 from right shift |
| vuint16m1_t d0 = |
| __riscv_vreinterpret_v_i16m1_u16m1(__riscv_vmax_vx_i16m1(sum, 0, vl)); |
| |
| return __riscv_vnclipu_wx_u8mf2(d0, FILTER_BITS - 1, __RISCV_VXRM_RNU, vl); |
| } |
| |
| static inline void convolve_y_sr_8tap_rvv(const uint8_t *src_ptr, |
| int src_stride, uint8_t *dst_ptr, |
| const int dst_stride, int w, int h, |
| const int16_t *y_filter) { |
| size_t vl = __riscv_vsetvl_e16m1(w); |
| do { |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| int height = h; |
| |
| // Load initial 7 rows of data |
| vuint8mf2_t t0, t1, t2, t3, t4, t5, t6; |
| load_u8_8x7(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, vl); |
| |
| // Convert to 16-bit |
| vint16m1_t s0 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t0, vl)); |
| vint16m1_t s1 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t1, vl)); |
| vint16m1_t s2 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl)); |
| vint16m1_t s3 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t3, vl)); |
| vint16m1_t s4 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t4, vl)); |
| vint16m1_t s5 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t5, vl)); |
| vint16m1_t s6 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t6, vl)); |
| |
| s += 7 * src_stride; |
| |
| do { |
| // Load next row |
| vuint8mf2_t t7 = __riscv_vle8_v_u8mf2(s + 0 * src_stride, vl); |
| vuint8mf2_t t8 = __riscv_vle8_v_u8mf2(s + 1 * src_stride, vl); |
| vuint8mf2_t t9 = __riscv_vle8_v_u8mf2(s + 2 * src_stride, vl); |
| vuint8mf2_t t10 = __riscv_vle8_v_u8mf2(s + 3 * src_stride, vl); |
| |
| // Convert to 16-bit |
| vint16m1_t s7 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t7, vl)); |
| vint16m1_t s8 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t8, vl)); |
| vint16m1_t s9 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t9, vl)); |
| vint16m1_t s10 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t10, vl)); |
| |
| // Perform 8-tap vertical convolution |
| vuint8mf2_t d0 = |
| convolve8_8_y_rvv(s0, s1, s2, s3, s4, s5, s6, s7, y_filter, vl); |
| vuint8mf2_t d1 = |
| convolve8_8_y_rvv(s1, s2, s3, s4, s5, s6, s7, s8, y_filter, vl); |
| vuint8mf2_t d2 = |
| convolve8_8_y_rvv(s2, s3, s4, s5, s6, s7, s8, s9, y_filter, vl); |
| vuint8mf2_t d3 = |
| convolve8_8_y_rvv(s3, s4, s5, s6, s7, s8, s9, s10, y_filter, vl); |
| |
| // Store result |
| store_u8_8x4(d, dst_stride, d0, d1, d2, d3, vl); |
| |
| // Update sliding window |
| s0 = __riscv_vmv_v_v_i16m1(s4, vl); |
| s1 = __riscv_vmv_v_v_i16m1(s5, vl); |
| s2 = __riscv_vmv_v_v_i16m1(s6, vl); |
| s3 = __riscv_vmv_v_v_i16m1(s7, vl); |
| s4 = __riscv_vmv_v_v_i16m1(s8, vl); |
| s5 = __riscv_vmv_v_v_i16m1(s9, vl); |
| s6 = __riscv_vmv_v_v_i16m1(s10, vl); |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| height -= 4; |
| } while (height > 0); |
| src_ptr += vl; |
| dst_ptr += vl; |
| w -= vl; |
| } while (w > 0); |
| } |
| |
| static inline void load_u8_8x11(const uint8_t *s, int p, vuint8mf2_t *const s0, |
| vuint8mf2_t *const s1, vuint8mf2_t *const s2, |
| vuint8mf2_t *const s3, vuint8mf2_t *const s4, |
| vuint8mf2_t *const s5, vuint8mf2_t *const s6, |
| vuint8mf2_t *const s7, vuint8mf2_t *const s8, |
| vuint8mf2_t *const s9, vuint8mf2_t *const s10, |
| size_t vl) { |
| *s0 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s1 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s2 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s3 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s4 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s5 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s6 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s7 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s8 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s9 = __riscv_vle8_v_u8mf2(s, vl); |
| s += p; |
| *s10 = __riscv_vle8_v_u8mf2(s, vl); |
| } |
| |
| static inline vuint8mf2_t convolve12_8_y_rvv( |
| const vint16m1_t s0, const vint16m1_t s1, const vint16m1_t s2, |
| const vint16m1_t s3, const vint16m1_t s4, const vint16m1_t s5, |
| const vint16m1_t s6, const vint16m1_t s7, const vint16m1_t s8, |
| const vint16m1_t s9, const vint16m1_t s10, const vint16m1_t s11, |
| const int16_t *y_filter, size_t vl) { |
| // Initialize sum with first multiplication |
| vint32m2_t sum = __riscv_vwmul_vx_i32m2(s0, y_filter[0], vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, y_filter[1], s1, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, y_filter[2], s2, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, y_filter[3], s3, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, y_filter[4], s4, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, y_filter[5], s5, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, y_filter[6], s6, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, y_filter[7], s7, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, y_filter[8], s8, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, y_filter[9], s9, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, y_filter[10], s10, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, y_filter[11], s11, vl); |
| |
| // Round and shift |
| sum = __riscv_vadd_vx_i32m2(sum, 1 << (FILTER_BITS - 1), vl); |
| vint16m1_t i16_sum = __riscv_vnsra_wx_i16m1(sum, FILTER_BITS, vl); |
| vint16m1_t iclip_sum = |
| __riscv_vmin_vx_i16m1(__riscv_vmax_vx_i16m1(i16_sum, 0, vl), 255, vl); |
| |
| // Convert to 8-bit |
| return __riscv_vncvt_x_x_w_u8mf2( |
| __riscv_vreinterpret_v_i16m1_u16m1(iclip_sum), vl); |
| } |
| |
| static inline void convolve_y_sr_12tap_rvv(const uint8_t *src_ptr, |
| int src_stride, uint8_t *dst_ptr, |
| const int dst_stride, int w, int h, |
| const int16_t *y_filter) { |
| size_t vl = __riscv_vsetvl_e16m1(w); |
| do { |
| const uint8_t *s = src_ptr; |
| uint8_t *d = dst_ptr; |
| int height = h; |
| |
| // Load initial 11 rows of data |
| vuint8mf2_t t0, t1, t2, t3, t4, t5, t6, t7, t8, t9, t10; |
| load_u8_8x11(s, src_stride, &t0, &t1, &t2, &t3, &t4, &t5, &t6, &t7, &t8, |
| &t9, &t10, vl); |
| |
| // Convert to 16-bit |
| vint16m1_t s0 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t0, vl)); |
| vint16m1_t s1 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t1, vl)); |
| vint16m1_t s2 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl)); |
| vint16m1_t s3 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t3, vl)); |
| vint16m1_t s4 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t4, vl)); |
| vint16m1_t s5 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t5, vl)); |
| vint16m1_t s6 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t6, vl)); |
| vint16m1_t s7 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t7, vl)); |
| vint16m1_t s8 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t8, vl)); |
| vint16m1_t s9 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t9, vl)); |
| vint16m1_t s10 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t10, vl)); |
| |
| s += 11 * src_stride; |
| |
| do { |
| // Load next 4 rows |
| vuint8mf2_t t11 = __riscv_vle8_v_u8mf2(s + 0 * src_stride, vl); |
| vuint8mf2_t t12 = __riscv_vle8_v_u8mf2(s + 1 * src_stride, vl); |
| vuint8mf2_t t13 = __riscv_vle8_v_u8mf2(s + 2 * src_stride, vl); |
| vuint8mf2_t t14 = __riscv_vle8_v_u8mf2(s + 3 * src_stride, vl); |
| |
| // Convert to 16-bit |
| vint16m1_t s11 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t11, vl)); |
| vint16m1_t s12 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t12, vl)); |
| vint16m1_t s13 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t13, vl)); |
| vint16m1_t s14 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t14, vl)); |
| |
| // Perform 12-tap convolution |
| vuint8mf2_t d0 = convolve12_8_y_rvv(s0, s1, s2, s3, s4, s5, s6, s7, s8, |
| s9, s10, s11, y_filter, vl); |
| vuint8mf2_t d1 = convolve12_8_y_rvv(s1, s2, s3, s4, s5, s6, s7, s8, s9, |
| s10, s11, s12, y_filter, vl); |
| vuint8mf2_t d2 = convolve12_8_y_rvv(s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, s12, s13, y_filter, vl); |
| vuint8mf2_t d3 = convolve12_8_y_rvv(s3, s4, s5, s6, s7, s8, s9, s10, s11, |
| s12, s13, s14, y_filter, vl); |
| |
| // Store results |
| store_u8_8x4(d, dst_stride, d0, d1, d2, d3, vl); |
| |
| // Update source pointers for next iteration |
| s0 = __riscv_vmv_v_v_i16m1(s4, vl); |
| s1 = __riscv_vmv_v_v_i16m1(s5, vl); |
| s2 = __riscv_vmv_v_v_i16m1(s6, vl); |
| s3 = __riscv_vmv_v_v_i16m1(s7, vl); |
| s4 = __riscv_vmv_v_v_i16m1(s8, vl); |
| s5 = __riscv_vmv_v_v_i16m1(s9, vl); |
| s6 = __riscv_vmv_v_v_i16m1(s10, vl); |
| s7 = __riscv_vmv_v_v_i16m1(s11, vl); |
| s8 = __riscv_vmv_v_v_i16m1(s12, vl); |
| s9 = __riscv_vmv_v_v_i16m1(s13, vl); |
| s10 = __riscv_vmv_v_v_i16m1(s14, vl); |
| s += 4 * src_stride; |
| d += 4 * dst_stride; |
| height -= 4; |
| } while (height != 0); |
| src_ptr += vl; |
| dst_ptr += vl; |
| w -= vl; |
| } while (w > 0); |
| } |
| |
| void av1_convolve_y_sr_rvv(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| const InterpFilterParams *filter_params_y, |
| const int subpel_y_qn) { |
| if (w == 2 || h == 2) { |
| av1_convolve_y_sr_c(src, src_stride, dst, dst_stride, w, h, filter_params_y, |
| subpel_y_qn); |
| return; |
| } |
| |
| const int y_filter_taps = get_filter_tap(filter_params_y, subpel_y_qn); |
| const int clamped_y_taps = y_filter_taps < 4 ? 4 : y_filter_taps; |
| const int vert_offset = clamped_y_taps / 2 - 1; |
| const uint8_t *src_rvv = src - vert_offset * src_stride; |
| const int16_t *y_filter_ptr = av1_get_interp_filter_subpel_kernel( |
| filter_params_y, subpel_y_qn & SUBPEL_MASK); |
| |
| if (y_filter_taps > 8) { |
| convolve_y_sr_12tap_rvv(src_rvv, src_stride, dst, dst_stride, w, h, |
| y_filter_ptr); |
| return; |
| } |
| |
| // Filter values are even so halve to reduce precision requirements. |
| // In RVV, we need to create a temporary array for the halved filter values |
| int16_t halved_filter[8]; |
| for (int i = 0; i < 8; i++) { |
| halved_filter[i] = y_filter_ptr[i] >> 1; |
| } |
| |
| if (y_filter_taps <= 4) { |
| convolve_y_sr_4tap_rvv(src_rvv, src_stride, dst, dst_stride, w, h, |
| halved_filter); |
| } else if (y_filter_taps == 6) { |
| convolve_y_sr_6tap_rvv(src_rvv, src_stride, dst, dst_stride, w, h, |
| halved_filter); |
| } else { |
| convolve_y_sr_8tap_rvv(src_rvv, src_stride, dst, dst_stride, w, h, |
| halved_filter); |
| } |
| } |
| |
| static inline vint16m1_t convolve12_4_2d_h_rvv( |
| const vint16m1_t s0, const vint16m1_t s1, const vint16m1_t s2, |
| const vint16m1_t s3, const vint16m1_t s4, const vint16m1_t s5, |
| const vint16m1_t filter0, const vint16m1_t filter1, |
| const vint16m1_t filter2, const vint16m1_t filter3, |
| const vint16m1_t filter4, const vint16m1_t filter5, |
| const int16_t horiz_const, size_t vl) { |
| vint32m2_t sum = __riscv_vwmul_vv_i32m2(s0, filter0, vl); |
| sum = __riscv_vwmacc_vv_i32m2(sum, filter1, s1, vl); |
| sum = __riscv_vwmacc_vv_i32m2(sum, filter2, s2, vl); |
| sum = __riscv_vwmacc_vv_i32m2(sum, filter3, s3, vl); |
| sum = __riscv_vwmacc_vv_i32m2(sum, filter4, s4, vl); |
| sum = __riscv_vwmacc_vv_i32m2(sum, filter5, s5, vl); |
| |
| sum = __riscv_vadd_vv_i32m2( |
| sum, __riscv_vslidedown_vx_i32m2(sum, vl >> 1, vl), vl >> 1); |
| sum = __riscv_vadd_vx_i32m2(sum, horiz_const, vl >> 1); |
| |
| return __riscv_vnsra_wx_i16m1(sum, ROUND0_BITS, vl >> 1); |
| } |
| |
| static inline vint16m1_t convolve12_8_2d_h_rvv( |
| const vint16m1_t s0, const vint16m1_t s1, const vint16m1_t s2, |
| const vint16m1_t s3, const vint16m1_t s4, const vint16m1_t s5, |
| const vint16m1_t s6, const vint16m1_t s7, const vint16m1_t s8, |
| const vint16m1_t s9, const vint16m1_t s10, const vint16m1_t s11, |
| const int16_t *x_filter, const int16_t horiz_const, size_t vl) { |
| vint32m2_t sum = __riscv_vwmul_vx_i32m2(s0, x_filter[0], vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, x_filter[1], s1, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, x_filter[2], s2, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, x_filter[3], s3, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, x_filter[4], s4, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, x_filter[5], s5, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, x_filter[6], s6, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, x_filter[7], s7, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, x_filter[8], s8, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, x_filter[9], s9, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, x_filter[10], s10, vl); |
| sum = __riscv_vwmacc_vx_i32m2(sum, x_filter[11], s11, vl); |
| |
| sum = __riscv_vadd_vx_i32m2(sum, horiz_const, vl); |
| |
| return __riscv_vnsra_wx_i16m1(sum, ROUND0_BITS, vl); |
| } |
| |
| static inline void convolve_2d_sr_horiz_12tap_rvv( |
| const uint8_t *src, int src_stride, int16_t *dst, const int dst_stride, |
| int w, int h, const int16_t *x_filter_ptr, size_t vl) { |
| const int bd = 8; |
| const int16_t horiz_const = |
| (1 << (bd + FILTER_BITS - 1)) + (1 << ((ROUND0_BITS - 1))); |
| |
| const int16_t xf0 = x_filter_ptr[0]; |
| const int16_t xf1 = x_filter_ptr[1]; |
| const int16_t xf2 = x_filter_ptr[2]; |
| const int16_t xf3 = x_filter_ptr[3]; |
| const int16_t xf4 = x_filter_ptr[4]; |
| const int16_t xf5 = x_filter_ptr[5]; |
| const int16_t xf6 = x_filter_ptr[6]; |
| const int16_t xf7 = x_filter_ptr[7]; |
| const int16_t xf8 = x_filter_ptr[8]; |
| const int16_t xf9 = x_filter_ptr[9]; |
| const int16_t xf10 = x_filter_ptr[10]; |
| const int16_t xf11 = x_filter_ptr[11]; |
| |
| if (w == 4) { |
| uint8_t *s = (uint8_t *)src; |
| int16_t *d = dst; |
| |
| vl = vl << 1; |
| |
| const int16_t filter0[8] = { xf0, xf0, xf0, xf0, xf4, xf4, xf4, xf4 }; |
| const int16_t filter1[8] = { xf1, xf1, xf1, xf1, xf5, xf5, xf5, xf5 }; |
| const int16_t filter2[8] = { xf2, xf2, xf2, xf2, xf6, xf6, xf6, xf6 }; |
| const int16_t filter3[8] = { xf3, xf3, xf3, xf3, xf7, xf7, xf7, xf7 }; |
| const int16_t filter4[8] = { xf8, xf8, xf8, xf8, xf9, xf9, xf9, xf9 }; |
| const int16_t filter5[8] = { |
| xf10, xf10, xf10, xf10, xf11, xf11, xf11, xf11 |
| }; |
| |
| const vint16m1_t vfilter0 = __riscv_vle16_v_i16m1(filter0, vl); |
| const vint16m1_t vfilter1 = __riscv_vle16_v_i16m1(filter1, vl); |
| const vint16m1_t vfilter2 = __riscv_vle16_v_i16m1(filter2, vl); |
| const vint16m1_t vfilter3 = __riscv_vle16_v_i16m1(filter3, vl); |
| const vint16m1_t vfilter4 = __riscv_vle16_v_i16m1(filter4, vl); |
| const vint16m1_t vfilter5 = __riscv_vle16_v_i16m1(filter5, vl); |
| |
| do { |
| vuint8mf2_t t0 = __riscv_vle8_v_u8mf2(s, vl); |
| vuint8mf2_t t1 = __riscv_vle8_v_u8mf2(s + 1, vl); |
| vuint8mf2_t t2 = __riscv_vle8_v_u8mf2(s + 2, vl); |
| vuint8mf2_t t3 = __riscv_vle8_v_u8mf2(s + 3, vl); |
| vuint8mf2_t t4 = load_strided_u8_4xN(s + 8, 1, vl); |
| vuint8mf2_t t5 = load_strided_u8_4xN(s + 10, 1, vl); |
| |
| vuint8mf2_t t6 = __riscv_vle8_v_u8mf2(s + src_stride, vl); |
| vuint8mf2_t t7 = __riscv_vle8_v_u8mf2(s + src_stride + 1, vl); |
| vuint8mf2_t t8 = __riscv_vle8_v_u8mf2(s + src_stride + 2, vl); |
| vuint8mf2_t t9 = __riscv_vle8_v_u8mf2(s + src_stride + 3, vl); |
| vuint8mf2_t t10 = load_strided_u8_4xN(s + src_stride + 8, 1, vl); |
| vuint8mf2_t t11 = load_strided_u8_4xN(s + src_stride + 10, 1, vl); |
| |
| vint16m1_t s0 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t0, vl)); |
| vint16m1_t s1 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t1, vl)); |
| vint16m1_t s2 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl)); |
| vint16m1_t s3 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t3, vl)); |
| vint16m1_t s4 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t4, vl)); |
| vint16m1_t s5 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t5, vl)); |
| vint16m1_t s6 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t6, vl)); |
| vint16m1_t s7 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t7, vl)); |
| vint16m1_t s8 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t8, vl)); |
| vint16m1_t s9 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t9, vl)); |
| vint16m1_t s10 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t10, vl)); |
| vint16m1_t s11 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t11, vl)); |
| |
| vint16m1_t d0 = convolve12_4_2d_h_rvv( |
| s0, s1, s2, s3, s4, s5, vfilter0, vfilter1, vfilter2, vfilter3, |
| vfilter4, vfilter5, horiz_const, vl); |
| vint16m1_t d1 = convolve12_4_2d_h_rvv( |
| s6, s7, s8, s9, s10, s11, vfilter0, vfilter1, vfilter2, vfilter3, |
| vfilter4, vfilter5, horiz_const, vl); |
| |
| __riscv_vse16_v_i16m1(d, d0, vl >> 1); |
| __riscv_vse16_v_i16m1(d + dst_stride, d1, vl >> 1); |
| |
| s += src_stride << 1; |
| d += dst_stride << 1; |
| h -= 2; |
| } while (h > 0); |
| } else { |
| do { |
| const uint8_t *s = src; |
| int16_t *d = dst; |
| int width = w; |
| |
| do { |
| vuint8mf2_t t0 = __riscv_vle8_v_u8mf2(s, vl); |
| vuint8mf2_t t1 = __riscv_vle8_v_u8mf2(s + 1, vl); |
| vuint8mf2_t t2 = __riscv_vle8_v_u8mf2(s + 2, vl); |
| vuint8mf2_t t3 = __riscv_vle8_v_u8mf2(s + 3, vl); |
| vuint8mf2_t t4 = __riscv_vle8_v_u8mf2(s + 4, vl); |
| vuint8mf2_t t5 = __riscv_vle8_v_u8mf2(s + 5, vl); |
| vuint8mf2_t t6 = __riscv_vle8_v_u8mf2(s + 6, vl); |
| vuint8mf2_t t7 = __riscv_vle8_v_u8mf2(s + 7, vl); |
| vuint8mf2_t t8 = __riscv_vle8_v_u8mf2(s + 8, vl); |
| vuint8mf2_t t9 = __riscv_vle8_v_u8mf2(s + 9, vl); |
| vuint8mf2_t t10 = __riscv_vle8_v_u8mf2(s + 10, vl); |
| vuint8mf2_t t11 = __riscv_vle8_v_u8mf2(s + 11, vl); |
| |
| vint16m1_t s0 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t0, vl)); |
| vint16m1_t s1 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t1, vl)); |
| vint16m1_t s2 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl)); |
| vint16m1_t s3 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t3, vl)); |
| vint16m1_t s4 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t4, vl)); |
| vint16m1_t s5 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t5, vl)); |
| vint16m1_t s6 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t6, vl)); |
| vint16m1_t s7 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t7, vl)); |
| vint16m1_t s8 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t8, vl)); |
| vint16m1_t s9 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t9, vl)); |
| vint16m1_t s10 = __riscv_vreinterpret_v_u16m1_i16m1( |
| __riscv_vzext_vf2_u16m1(t10, vl)); |
| vint16m1_t s11 = __riscv_vreinterpret_v_u16m1_i16m1( |
| __riscv_vzext_vf2_u16m1(t11, vl)); |
| |
| vint16m1_t d0 = |
| convolve12_8_2d_h_rvv(s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, |
| s11, x_filter_ptr, horiz_const, vl); |
| |
| __riscv_vse16_v_i16m1(d, d0, vl); |
| |
| s += vl; |
| d += vl; |
| width -= vl; |
| } while (width != 0); |
| src += src_stride; |
| dst += dst_stride; |
| } while (--h != 0); |
| } |
| } |
| |
| static inline vint16m1_t convolve4_2d_h_rvv( |
| const vint16m1_t s0, const vint16m1_t s1, const vint16m1_t s2, |
| const vint16m1_t s3, const int16_t *x_filter, const int16_t horiz_const, |
| size_t vl) { |
| vint16m1_t sum = __riscv_vmul_vx_i16m1(s0, x_filter[0], vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, x_filter[1], s1, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, x_filter[2], s2, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, x_filter[3], s3, vl); |
| |
| sum = __riscv_vadd_vx_i16m1(sum, horiz_const, vl); |
| |
| return __riscv_vsra_vx_i16m1(sum, ROUND0_BITS - 1, vl); |
| } |
| |
| static inline void convolve_2d_sr_horiz_4tap_rvv( |
| const uint8_t *src, ptrdiff_t src_stride, int16_t *dst, |
| ptrdiff_t dst_stride, int w, int h, const int16_t *filter_x, size_t vl) { |
| const int bd = 8; |
| const int16_t *filter = filter_x + 2; |
| const int16_t horiz_const = |
| (1 << (bd + FILTER_BITS - 2)) + (1 << ((ROUND0_BITS - 1) - 1)); |
| |
| const int16_t xf0 = filter[0] >> 1; |
| const int16_t xf1 = filter[1] >> 1; |
| const int16_t xf2 = filter[2] >> 1; |
| const int16_t xf3 = filter[3] >> 1; |
| const int16_t xfilter[4] = { xf0, xf1, xf2, xf3 }; |
| |
| if (w <= 4) { |
| vl = vl << 1; |
| |
| do { |
| vuint8mf2_t t0 = load_strided_u8_4xN((uint8_t *)src + 0, src_stride, vl); |
| vuint8mf2_t t1 = load_strided_u8_4xN((uint8_t *)src + 1, src_stride, vl); |
| vuint8mf2_t t2 = load_strided_u8_4xN((uint8_t *)src + 2, src_stride, vl); |
| vuint8mf2_t t3 = load_strided_u8_4xN((uint8_t *)src + 3, src_stride, vl); |
| |
| vint16m1_t s0 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t0, vl)); |
| vint16m1_t s1 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t1, vl)); |
| vint16m1_t s2 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl)); |
| vint16m1_t s3 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t3, vl)); |
| |
| vint16m1_t d0 = |
| convolve4_2d_h_rvv(s0, s1, s2, s3, xfilter, horiz_const, vl); |
| |
| store_strided_i16_4xN(dst, d0, dst_stride, vl); |
| |
| src += src_stride << 1; |
| dst += dst_stride << 1; |
| h -= 2; |
| } while (h > 0); |
| } else { |
| do { |
| int width = w; |
| const uint8_t *s = src; |
| int16_t *d = dst; |
| |
| do { |
| vuint8mf2_t t0 = __riscv_vle8_v_u8mf2(s + 0, vl); |
| vuint8mf2_t t1 = __riscv_vle8_v_u8mf2(s + 1, vl); |
| vuint8mf2_t t2 = __riscv_vle8_v_u8mf2(s + 2, vl); |
| vuint8mf2_t t3 = __riscv_vle8_v_u8mf2(s + 3, vl); |
| |
| vuint8mf2_t t4 = __riscv_vle8_v_u8mf2(s + src_stride, vl); |
| vuint8mf2_t t5 = __riscv_vle8_v_u8mf2(s + src_stride + 1, vl); |
| vuint8mf2_t t6 = __riscv_vle8_v_u8mf2(s + src_stride + 2, vl); |
| vuint8mf2_t t7 = __riscv_vle8_v_u8mf2(s + src_stride + 3, vl); |
| |
| vint16m1_t s0 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t0, vl)); |
| vint16m1_t s1 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t1, vl)); |
| vint16m1_t s2 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl)); |
| vint16m1_t s3 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t3, vl)); |
| |
| vint16m1_t s4 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t4, vl)); |
| vint16m1_t s5 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t5, vl)); |
| vint16m1_t s6 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t6, vl)); |
| vint16m1_t s7 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t7, vl)); |
| |
| vint16m1_t d0 = |
| convolve4_2d_h_rvv(s0, s1, s2, s3, xfilter, horiz_const, vl); |
| vint16m1_t d1 = |
| convolve4_2d_h_rvv(s4, s5, s6, s7, xfilter, horiz_const, vl); |
| |
| __riscv_vse16_v_i16m1(d, d0, vl); |
| __riscv_vse16_v_i16m1(d + dst_stride, d1, vl); |
| |
| s += vl; |
| d += vl; |
| width -= vl; |
| } while (width != 0); |
| src += src_stride << 1; |
| dst += dst_stride << 1; |
| h -= 2; |
| } while (h > 0); |
| } |
| } |
| |
| static inline vint16m1_t convolve8_4_2d_h_rvv( |
| const vint16m1_t s0, const vint16m1_t s1, const vint16m1_t s2, |
| const vint16m1_t s3, const vint16m1_t x_filter0, const vint16m1_t x_filter1, |
| const vint16m1_t x_filter2, const vint16m1_t x_filter3, |
| const int16_t horiz_const, size_t vl) { |
| vint16m1_t sum = __riscv_vmul_vv_i16m1(s0, x_filter0, vl); |
| sum = __riscv_vmacc_vv_i16m1(sum, x_filter1, s1, vl); |
| sum = __riscv_vmacc_vv_i16m1(sum, x_filter2, s2, vl); |
| sum = __riscv_vmacc_vv_i16m1(sum, x_filter3, s3, vl); |
| |
| sum = __riscv_vadd_vv_i16m1( |
| sum, __riscv_vslidedown_vx_i16m1(sum, vl >> 1, vl), vl >> 1); |
| sum = __riscv_vadd_vx_i16m1(sum, horiz_const, vl >> 1); |
| |
| return __riscv_vsra_vx_i16m1(sum, ROUND0_BITS - 1, vl >> 1); |
| } |
| |
| static inline vint16m1_t convolve8_8_2d_h_rvv( |
| const vint16m1_t s0, const vint16m1_t s1, const vint16m1_t s2, |
| const vint16m1_t s3, const vint16m1_t s4, const vint16m1_t s5, |
| const vint16m1_t s6, const vint16m1_t s7, const int16_t *x_filter, |
| const int16_t horiz_const, size_t vl) { |
| vint16m1_t sum = __riscv_vmul_vx_i16m1(s0, x_filter[0], vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, x_filter[1], s1, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, x_filter[2], s2, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, x_filter[3], s3, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, x_filter[4], s4, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, x_filter[5], s5, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, x_filter[6], s6, vl); |
| sum = __riscv_vmacc_vx_i16m1(sum, x_filter[7], s7, vl); |
| |
| sum = __riscv_vadd_vx_i16m1(sum, horiz_const, vl); |
| |
| return __riscv_vsra_vx_i16m1(sum, ROUND0_BITS - 1, vl); |
| } |
| |
| static inline void convolve_2d_sr_horiz_8tap_rvv( |
| const uint8_t *src, ptrdiff_t src_stride, int16_t *dst, |
| ptrdiff_t dst_stride, int w, int im_h, const int16_t *x_filter_ptr, |
| size_t vl) { |
| const int bd = 8; |
| const int16_t horiz_const = |
| (1 << (bd + FILTER_BITS - 2)) + (1 << ((ROUND0_BITS - 1) - 1)); |
| |
| int height = im_h; |
| |
| const int16_t xf0 = x_filter_ptr[0] >> 1; |
| const int16_t xf1 = x_filter_ptr[1] >> 1; |
| const int16_t xf2 = x_filter_ptr[2] >> 1; |
| const int16_t xf3 = x_filter_ptr[3] >> 1; |
| const int16_t xf4 = x_filter_ptr[4] >> 1; |
| const int16_t xf5 = x_filter_ptr[5] >> 1; |
| const int16_t xf6 = x_filter_ptr[6] >> 1; |
| const int16_t xf7 = x_filter_ptr[7] >> 1; |
| |
| if (w <= 4) { |
| vl = vl << 1; |
| |
| const int16_t filter0[8] = { xf0, xf0, xf0, xf0, xf4, xf4, xf4, xf4 }; |
| const int16_t filter1[8] = { xf1, xf1, xf1, xf1, xf5, xf5, xf5, xf5 }; |
| const int16_t filter2[8] = { xf2, xf2, xf2, xf2, xf6, xf6, xf6, xf6 }; |
| const int16_t filter3[8] = { xf3, xf3, xf3, xf3, xf7, xf7, xf7, xf7 }; |
| |
| const vint16m1_t vfilter0 = __riscv_vle16_v_i16m1(filter0, vl); |
| const vint16m1_t vfilter1 = __riscv_vle16_v_i16m1(filter1, vl); |
| const vint16m1_t vfilter2 = __riscv_vle16_v_i16m1(filter2, vl); |
| const vint16m1_t vfilter3 = __riscv_vle16_v_i16m1(filter3, vl); |
| |
| do { |
| vuint8mf2_t t0 = __riscv_vle8_v_u8mf2(src, vl); |
| vuint8mf2_t t1 = __riscv_vle8_v_u8mf2(src + 1, vl); |
| vuint8mf2_t t2 = __riscv_vle8_v_u8mf2(src + 2, vl); |
| vuint8mf2_t t3 = __riscv_vle8_v_u8mf2(src + 3, vl); |
| |
| vuint8mf2_t t4 = __riscv_vle8_v_u8mf2(src + src_stride, vl); |
| vuint8mf2_t t5 = __riscv_vle8_v_u8mf2(src + src_stride + 1, vl); |
| vuint8mf2_t t6 = __riscv_vle8_v_u8mf2(src + src_stride + 2, vl); |
| vuint8mf2_t t7 = __riscv_vle8_v_u8mf2(src + src_stride + 3, vl); |
| |
| vint16m1_t s0 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t0, vl)); |
| vint16m1_t s1 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t1, vl)); |
| vint16m1_t s2 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl)); |
| vint16m1_t s3 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t3, vl)); |
| vint16m1_t s4 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t4, vl)); |
| vint16m1_t s5 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t5, vl)); |
| vint16m1_t s6 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t6, vl)); |
| vint16m1_t s7 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t7, vl)); |
| |
| vint16m1_t d0 = convolve8_4_2d_h_rvv(s0, s1, s2, s3, vfilter0, vfilter1, |
| vfilter2, vfilter3, horiz_const, vl); |
| vint16m1_t d1 = convolve8_4_2d_h_rvv(s4, s5, s6, s7, vfilter0, vfilter1, |
| vfilter2, vfilter3, horiz_const, vl); |
| |
| __riscv_vse16_v_i16m1(dst, d0, vl >> 1); |
| __riscv_vse16_v_i16m1(dst + dst_stride, d1, vl >> 1); |
| |
| src += src_stride << 1; |
| dst += dst_stride << 1; |
| height -= 2; |
| } while (height > 0); |
| } else { |
| const int16_t xfilter[8] = { xf0, xf1, xf2, xf3, xf4, xf5, xf6, xf7 }; |
| |
| do { |
| const uint8_t *s = src; |
| int16_t *d = dst; |
| int width = w; |
| |
| do { |
| vuint8mf2_t t0 = __riscv_vle8_v_u8mf2(s, vl); |
| vuint8mf2_t t1 = __riscv_vle8_v_u8mf2(s + 1, vl); |
| vuint8mf2_t t2 = __riscv_vle8_v_u8mf2(s + 2, vl); |
| vuint8mf2_t t3 = __riscv_vle8_v_u8mf2(s + 3, vl); |
| vuint8mf2_t t4 = __riscv_vle8_v_u8mf2(s + 4, vl); |
| vuint8mf2_t t5 = __riscv_vle8_v_u8mf2(s + 5, vl); |
| vuint8mf2_t t6 = __riscv_vle8_v_u8mf2(s + 6, vl); |
| vuint8mf2_t t7 = __riscv_vle8_v_u8mf2(s + 7, vl); |
| |
| vint16m1_t s0 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t0, vl)); |
| vint16m1_t s1 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t1, vl)); |
| vint16m1_t s2 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t2, vl)); |
| vint16m1_t s3 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t3, vl)); |
| vint16m1_t s4 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t4, vl)); |
| vint16m1_t s5 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t5, vl)); |
| vint16m1_t s6 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t6, vl)); |
| vint16m1_t s7 = |
| __riscv_vreinterpret_v_u16m1_i16m1(__riscv_vzext_vf2_u16m1(t7, vl)); |
| |
| vint16m1_t d0 = convolve8_8_2d_h_rvv(s0, s1, s2, s3, s4, s5, s6, s7, |
| xfilter, horiz_const, vl); |
| |
| __riscv_vse16_v_i16m1(d, d0, vl); |
| |
| s += vl; |
| d += vl; |
| width -= vl; |
| } while (width != 0); |
| src += src_stride; |
| dst += dst_stride; |
| } while (--height != 0); |
| } |
| } |
| |
| void av1_convolve_2d_sr_rvv(const uint8_t *src, int src_stride, uint8_t *dst, |
| int dst_stride, int w, int h, |
| const InterpFilterParams *filter_params_x, |
| const InterpFilterParams *filter_params_y, |
| const int subpel_x_qn, const int subpel_y_qn, |
| ConvolveParams *conv_params) { |
| if (w == 2 || h == 2) { |
| av1_convolve_2d_sr_c(src, src_stride, dst, dst_stride, w, h, |
| filter_params_x, filter_params_y, subpel_x_qn, |
| subpel_y_qn, conv_params); |
| return; |
| } |
| |
| const int y_filter_taps = get_filter_tap(filter_params_y, subpel_y_qn); |
| const int x_filter_taps = get_filter_tap(filter_params_x, subpel_x_qn); |
| const int clamped_y_taps = y_filter_taps < 4 ? 4 : y_filter_taps; |
| const int im_h = h + clamped_y_taps - 1; |
| const int im_stride = MAX_SB_SIZE; |
| const int vert_offset = clamped_y_taps / 2 - 1; |
| const int horiz_offset = filter_params_x->taps / 2 - 1; |
| const uint8_t *src_ptr = src - vert_offset * src_stride - horiz_offset; |
| |
| const int16_t *x_filter_ptr = av1_get_interp_filter_subpel_kernel( |
| filter_params_x, subpel_x_qn & SUBPEL_MASK); |
| const int16_t *y_filter_ptr = av1_get_interp_filter_subpel_kernel( |
| filter_params_y, subpel_y_qn & SUBPEL_MASK); |
| |
| size_t vl = __riscv_vsetvl_e16m1(w); |
| |
| if (filter_params_x->taps > 8) { |
| DECLARE_ALIGNED(16, int16_t, |
| im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]); |
| |
| convolve_2d_sr_horiz_12tap_rvv(src_ptr, src_stride, im_block, im_stride, w, |
| im_h, x_filter_ptr, vl); |
| convolve_2d_sr_vert_12tap_rvv(im_block, im_stride, dst, dst_stride, w, h, |
| y_filter_ptr, vl); |
| } else { |
| DECLARE_ALIGNED(16, int16_t, |
| im_block[(MAX_SB_SIZE + MAX_FILTER_TAP - 1) * MAX_SB_SIZE]); |
| |
| // horizontal filter |
| if (x_filter_taps <= 4) { |
| convolve_2d_sr_horiz_4tap_rvv(src_ptr + 2, src_stride, im_block, |
| im_stride, w, im_h, x_filter_ptr, vl); |
| } else { |
| convolve_2d_sr_horiz_8tap_rvv(src_ptr, src_stride, im_block, im_stride, w, |
| im_h, x_filter_ptr, vl); |
| } |
| |
| // vertical filter |
| if (clamped_y_taps <= 4) { |
| convolve_2d_sr_vert_4tap_rvv(im_block, im_stride, dst, dst_stride, w, h, |
| y_filter_ptr, vl); |
| } else if (clamped_y_taps == 6) { |
| convolve_2d_sr_vert_6tap_rvv(im_block, im_stride, dst, dst_stride, w, h, |
| y_filter_ptr, vl); |
| } else { |
| convolve_2d_sr_vert_8tap_rvv(im_block, im_stride, dst, dst_stride, w, h, |
| y_filter_ptr, vl); |
| } |
| } |
| } |
| |
| void av1_convolve_x_sr_intrabc_rvv(const uint8_t *src, int src_stride, |
| uint8_t *dst, int dst_stride, int w, int h, |
| const InterpFilterParams *filter_params_x, |
| const int subpel_x_qn, |
| ConvolveParams *conv_params) { |
| assert(subpel_x_qn == 8); |
| assert(filter_params_x->taps == 2); |
| assert((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS); |
| (void)filter_params_x; |
| (void)subpel_x_qn; |
| (void)conv_params; |
| |
| size_t vl = __riscv_vsetvl_e8m1(w); |
| if (w <= 8) { |
| do { |
| // Load |
| vuint8mf2_t s0_0 = __riscv_vle8_v_u8mf2(src, vl); |
| vuint8mf2_t s0_1 = __riscv_vle8_v_u8mf2(src + 1, vl); |
| vuint8mf2_t s1_0 = __riscv_vle8_v_u8mf2(src + src_stride, vl); |
| vuint8mf2_t s1_1 = __riscv_vle8_v_u8mf2(src + src_stride + 1, vl); |
| |
| // Average the values |
| vuint8mf2_t d0 = |
| __riscv_vaaddu_vv_u8mf2(s0_0, s0_1, __RISCV_VXRM_RNU, vl); |
| vuint8mf2_t d1 = |
| __riscv_vaaddu_vv_u8mf2(s1_0, s1_1, __RISCV_VXRM_RNU, vl); |
| |
| __riscv_vse8_v_u8mf2(dst, d0, vl); |
| __riscv_vse8_v_u8mf2(dst + dst_stride, d1, vl); |
| |
| src += src_stride << 1; |
| dst += dst_stride << 1; |
| h -= 2; |
| } while (h > 0); |
| } else { |
| do { |
| const uint8_t *src_ptr = src; |
| uint8_t *dst_ptr = dst; |
| int width = w; |
| |
| do { |
| // Load |
| vuint8m1_t s0 = __riscv_vle8_v_u8m1(src_ptr, vl); |
| vuint8m1_t s1 = __riscv_vle8_v_u8m1(src_ptr + 1, vl); |
| vuint8m1_t s2 = __riscv_vle8_v_u8m1(src_ptr + src_stride, vl); |
| vuint8m1_t s3 = __riscv_vle8_v_u8m1(src_ptr + src_stride + 1, vl); |
| |
| // Average the values |
| vuint8m1_t d0 = __riscv_vaaddu_vv_u8m1(s0, s1, __RISCV_VXRM_RNU, vl); |
| vuint8m1_t d1 = __riscv_vaaddu_vv_u8m1(s2, s3, __RISCV_VXRM_RNU, vl); |
| |
| // Store |
| __riscv_vse8_v_u8m1(dst_ptr, d0, vl); |
| __riscv_vse8_v_u8m1(dst_ptr + dst_stride, d1, vl); |
| |
| src_ptr += vl; |
| dst_ptr += vl; |
| width -= vl; |
| } while (width > 0); |
| src += src_stride << 1; |
| dst += dst_stride << 1; |
| h -= 2; |
| } while (h > 0); |
| } |
| } |
| |
| void av1_convolve_y_sr_intrabc_rvv(const uint8_t *src, int src_stride, |
| uint8_t *dst, int dst_stride, int w, int h, |
| const InterpFilterParams *filter_params_y, |
| const int subpel_y_qn) { |
| assert(subpel_y_qn == 8); |
| assert(filter_params_y->taps == 2); |
| (void)filter_params_y; |
| (void)subpel_y_qn; |
| |
| size_t vl = __riscv_vsetvl_e8m1(w); |
| if (w <= 8) { |
| vuint8mf2_t s0 = __riscv_vle8_v_u8mf2(src, vl); |
| |
| do { |
| vuint8mf2_t s1 = __riscv_vle8_v_u8mf2(src + src_stride, vl); |
| vuint8mf2_t s2 = __riscv_vle8_v_u8mf2(src + 2 * src_stride, vl); |
| |
| // Average the values |
| vuint8mf2_t d0 = __riscv_vaaddu_vv_u8mf2(s0, s1, __RISCV_VXRM_RNU, vl); |
| vuint8mf2_t d1 = __riscv_vaaddu_vv_u8mf2(s1, s2, __RISCV_VXRM_RNU, vl); |
| |
| __riscv_vse8_v_u8mf2(dst, d0, vl); |
| __riscv_vse8_v_u8mf2(dst + dst_stride, d1, vl); |
| |
| s0 = s2; |
| src += src_stride << 1; |
| dst += dst_stride << 1; |
| h -= 2; |
| } while (h > 0); |
| } else { |
| do { |
| const uint8_t *src_ptr = src; |
| uint8_t *dst_ptr = dst; |
| int height = h; |
| |
| vuint8m1_t s0 = __riscv_vle8_v_u8m1(src_ptr, vl); |
| |
| do { |
| vuint8m1_t s1 = __riscv_vle8_v_u8m1(src_ptr + src_stride, vl); |
| vuint8m1_t s2 = __riscv_vle8_v_u8m1(src_ptr + 2 * src_stride, vl); |
| |
| // Average the values |
| vuint8m1_t d0 = __riscv_vaaddu_vv_u8m1(s0, s1, __RISCV_VXRM_RNU, vl); |
| vuint8m1_t d1 = __riscv_vaaddu_vv_u8m1(s1, s2, __RISCV_VXRM_RNU, vl); |
| |
| // Store |
| __riscv_vse8_v_u8m1(dst_ptr, d0, vl); |
| __riscv_vse8_v_u8m1(dst_ptr + dst_stride, d1, vl); |
| |
| s0 = s2; |
| src_ptr += src_stride << 1; |
| dst_ptr += dst_stride << 1; |
| height -= 2; |
| } while (height > 0); |
| src += vl; |
| dst += vl; |
| w -= vl; |
| } while (w > 0); |
| } |
| } |
| |
| void av1_convolve_2d_sr_intrabc_rvv(const uint8_t *src, int src_stride, |
| uint8_t *dst, int dst_stride, int w, int h, |
| const InterpFilterParams *filter_params_x, |
| const InterpFilterParams *filter_params_y, |
| const int subpel_x_qn, |
| const int subpel_y_qn, |
| ConvolveParams *conv_params) { |
| assert(subpel_x_qn == 8); |
| assert(subpel_y_qn == 8); |
| assert(filter_params_x->taps == 2 && filter_params_y->taps == 2); |
| assert((conv_params->round_0 + conv_params->round_1) == 2 * FILTER_BITS); |
| (void)filter_params_x; |
| (void)subpel_x_qn; |
| (void)filter_params_y; |
| (void)subpel_y_qn; |
| (void)conv_params; |
| |
| size_t vl = __riscv_vsetvl_e16m1(w); |
| |
| if (w <= 8) { |
| // Horizontal filter. |
| vuint8mf2_t s0 = __riscv_vle8_v_u8mf2(src, vl); |
| vuint8mf2_t s1 = __riscv_vle8_v_u8mf2(src + 1, vl); |
| src += src_stride; |
| |
| vuint16m1_t sum0 = __riscv_vwaddu_vv_u16m1(s0, s1, vl); |
| |
| do { |
| vuint8mf2_t s2 = __riscv_vle8_v_u8mf2(src, vl); |
| vuint8mf2_t s3 = __riscv_vle8_v_u8mf2(src + 1, vl); |
| src += src_stride; |
| vuint8mf2_t s4 = __riscv_vle8_v_u8mf2(src, vl); |
| vuint8mf2_t s5 = __riscv_vle8_v_u8mf2(src + 1, vl); |
| src += src_stride; |
| |
| vuint16m1_t sum1 = __riscv_vwaddu_vv_u16m1(s2, s3, vl); |
| vuint16m1_t sum2 = __riscv_vwaddu_vv_u16m1(s4, s5, vl); |
| |
| // Vertical filter. |
| vuint8mf2_t d0 = __riscv_vnclipu_wx_u8mf2( |
| __riscv_vadd_vv_u16m1(sum0, sum1, vl), 2, __RISCV_VXRM_RNU, vl); |
| vuint8mf2_t d1 = __riscv_vnclipu_wx_u8mf2( |
| __riscv_vadd_vv_u16m1(sum1, sum2, vl), 2, __RISCV_VXRM_RNU, vl); |
| |
| __riscv_vse8_v_u8mf2(dst, d0, vl); |
| dst += dst_stride; |
| __riscv_vse8_v_u8mf2(dst, d1, vl); |
| dst += dst_stride; |
| |
| sum0 = sum2; |
| h -= 2; |
| } while (h != 0); |
| } else { |
| do { |
| uint8_t *src_ptr = (uint8_t *)src; |
| uint8_t *dst_ptr = dst; |
| int height = h; |
| |
| // Horizontal filter. |
| vuint8mf2_t s0 = __riscv_vle8_v_u8mf2(src_ptr, vl); |
| vuint8mf2_t s1 = __riscv_vle8_v_u8mf2(src_ptr + 1, vl); |
| src_ptr += src_stride; |
| |
| vuint16m1_t sum0 = __riscv_vwaddu_vv_u16m1(s0, s1, vl); |
| |
| do { |
| vuint8mf2_t s2 = __riscv_vle8_v_u8mf2(src_ptr, vl); |
| vuint8mf2_t s3 = __riscv_vle8_v_u8mf2(src_ptr + 1, vl); |
| src_ptr += src_stride; |
| vuint8mf2_t s4 = __riscv_vle8_v_u8mf2(src_ptr, vl); |
| vuint8mf2_t s5 = __riscv_vle8_v_u8mf2(src_ptr + 1, vl); |
| src_ptr += src_stride; |
| |
| vuint16m1_t sum1 = __riscv_vwaddu_vv_u16m1(s2, s3, vl); |
| vuint16m1_t sum2 = __riscv_vwaddu_vv_u16m1(s4, s5, vl); |
| |
| // Vertical filter. |
| vuint8mf2_t d0 = __riscv_vnclipu_wx_u8mf2( |
| __riscv_vadd_vv_u16m1(sum0, sum1, vl), 2, __RISCV_VXRM_RNU, vl); |
| vuint8mf2_t d1 = __riscv_vnclipu_wx_u8mf2( |
| __riscv_vadd_vv_u16m1(sum1, sum2, vl), 2, __RISCV_VXRM_RNU, vl); |
| |
| __riscv_vse8_v_u8mf2(dst_ptr, d0, vl); |
| dst_ptr += dst_stride; |
| __riscv_vse8_v_u8mf2(dst_ptr, d1, vl); |
| dst_ptr += dst_stride; |
| |
| sum0 = sum2; |
| height -= 2; |
| } while (height != 0); |
| |
| src += vl; |
| dst += vl; |
| w -= vl; |
| } while (w != 0); |
| } |
| } |
