ref: e9d2f44d12ad22db83ceb09e57c4c6940acbc8f4
dir: /vpx_dsp/arm/vpx_convolve8_neon_asm.c/
/* * Copyright (c) 2018 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 "./vpx_dsp_rtcd.h" #include "vp9/common/vp9_filter.h" #include "vpx_dsp/arm/vpx_convolve8_neon_asm.h" /* Type1 and Type2 functions are called depending on the position of the * negative and positive coefficients in the filter. In type1, the filter kernel * used is sub_pel_filters_8lp, in which only the first two and the last two * coefficients are negative. In type2, the negative coefficients are 0, 2, 5 & * 7. */ #define DEFINE_FILTER(dir) \ void vpx_convolve8_##dir##_neon( \ const uint8_t *src, ptrdiff_t src_stride, uint8_t *dst, \ ptrdiff_t dst_stride, const InterpKernel *filter, int x0_q4, \ int x_step_q4, int y0_q4, int y_step_q4, int w, int h) { \ if (filter == vp9_filter_kernels[1]) { \ vpx_convolve8_##dir##_filter_type1_neon( \ src, src_stride, dst, dst_stride, filter, x0_q4, x_step_q4, y0_q4, \ y_step_q4, w, h); \ } else { \ vpx_convolve8_##dir##_filter_type2_neon( \ src, src_stride, dst, dst_stride, filter, x0_q4, x_step_q4, y0_q4, \ y_step_q4, w, h); \ } \ } DEFINE_FILTER(horiz); DEFINE_FILTER(avg_horiz); DEFINE_FILTER(vert); DEFINE_FILTER(avg_vert);