From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- third_party/aom/aom_dsp/arm/subtract_neon.c | 81 +++++++++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 third_party/aom/aom_dsp/arm/subtract_neon.c (limited to 'third_party/aom/aom_dsp/arm/subtract_neon.c') diff --git a/third_party/aom/aom_dsp/arm/subtract_neon.c b/third_party/aom/aom_dsp/arm/subtract_neon.c new file mode 100644 index 0000000000..28f5ace8e1 --- /dev/null +++ b/third_party/aom/aom_dsp/arm/subtract_neon.c @@ -0,0 +1,81 @@ +/* + * Copyright (c) 2016, 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 + +#include "config/aom_config.h" + +#include "aom/aom_integer.h" + +void aom_subtract_block_neon(int rows, int cols, int16_t *diff, + ptrdiff_t diff_stride, const uint8_t *src, + ptrdiff_t src_stride, const uint8_t *pred, + ptrdiff_t pred_stride) { + int r, c; + + if (cols > 16) { + for (r = 0; r < rows; ++r) { + for (c = 0; c < cols; c += 32) { + const uint8x16_t v_src_00 = vld1q_u8(&src[c + 0]); + const uint8x16_t v_src_16 = vld1q_u8(&src[c + 16]); + const uint8x16_t v_pred_00 = vld1q_u8(&pred[c + 0]); + const uint8x16_t v_pred_16 = vld1q_u8(&pred[c + 16]); + const uint16x8_t v_diff_lo_00 = + vsubl_u8(vget_low_u8(v_src_00), vget_low_u8(v_pred_00)); + const uint16x8_t v_diff_hi_00 = + vsubl_u8(vget_high_u8(v_src_00), vget_high_u8(v_pred_00)); + const uint16x8_t v_diff_lo_16 = + vsubl_u8(vget_low_u8(v_src_16), vget_low_u8(v_pred_16)); + const uint16x8_t v_diff_hi_16 = + vsubl_u8(vget_high_u8(v_src_16), vget_high_u8(v_pred_16)); + vst1q_s16(&diff[c + 0], vreinterpretq_s16_u16(v_diff_lo_00)); + vst1q_s16(&diff[c + 8], vreinterpretq_s16_u16(v_diff_hi_00)); + vst1q_s16(&diff[c + 16], vreinterpretq_s16_u16(v_diff_lo_16)); + vst1q_s16(&diff[c + 24], vreinterpretq_s16_u16(v_diff_hi_16)); + } + diff += diff_stride; + pred += pred_stride; + src += src_stride; + } + } else if (cols > 8) { + for (r = 0; r < rows; ++r) { + const uint8x16_t v_src = vld1q_u8(&src[0]); + const uint8x16_t v_pred = vld1q_u8(&pred[0]); + const uint16x8_t v_diff_lo = + vsubl_u8(vget_low_u8(v_src), vget_low_u8(v_pred)); + const uint16x8_t v_diff_hi = + vsubl_u8(vget_high_u8(v_src), vget_high_u8(v_pred)); + vst1q_s16(&diff[0], vreinterpretq_s16_u16(v_diff_lo)); + vst1q_s16(&diff[8], vreinterpretq_s16_u16(v_diff_hi)); + diff += diff_stride; + pred += pred_stride; + src += src_stride; + } + } else if (cols > 4) { + for (r = 0; r < rows; ++r) { + const uint8x8_t v_src = vld1_u8(&src[0]); + const uint8x8_t v_pred = vld1_u8(&pred[0]); + const uint16x8_t v_diff = vsubl_u8(v_src, v_pred); + vst1q_s16(&diff[0], vreinterpretq_s16_u16(v_diff)); + diff += diff_stride; + pred += pred_stride; + src += src_stride; + } + } else { + for (r = 0; r < rows; ++r) { + for (c = 0; c < cols; ++c) diff[c] = src[c] - pred[c]; + + diff += diff_stride; + pred += pred_stride; + src += src_stride; + } + } +} -- cgit v1.2.3