166 lines
4.9 KiB
C
166 lines
4.9 KiB
C
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/*
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* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <arm_neon.h>
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#include "./vpx_config.h"
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#include "vpx_dsp/inv_txfm.h"
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#include "vpx_ports/mem.h"
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static INLINE void LD_16x8(
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uint8_t *d,
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int d_stride,
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uint8x16_t *q8u8,
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uint8x16_t *q9u8,
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uint8x16_t *q10u8,
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uint8x16_t *q11u8,
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uint8x16_t *q12u8,
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uint8x16_t *q13u8,
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uint8x16_t *q14u8,
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uint8x16_t *q15u8) {
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*q8u8 = vld1q_u8(d);
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d += d_stride;
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*q9u8 = vld1q_u8(d);
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d += d_stride;
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*q10u8 = vld1q_u8(d);
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d += d_stride;
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*q11u8 = vld1q_u8(d);
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d += d_stride;
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*q12u8 = vld1q_u8(d);
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d += d_stride;
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*q13u8 = vld1q_u8(d);
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d += d_stride;
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*q14u8 = vld1q_u8(d);
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d += d_stride;
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*q15u8 = vld1q_u8(d);
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return;
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}
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static INLINE void ADD_DIFF_16x8(
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uint8x16_t qdiffu8,
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uint8x16_t *q8u8,
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uint8x16_t *q9u8,
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uint8x16_t *q10u8,
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uint8x16_t *q11u8,
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uint8x16_t *q12u8,
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uint8x16_t *q13u8,
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uint8x16_t *q14u8,
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uint8x16_t *q15u8) {
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*q8u8 = vqaddq_u8(*q8u8, qdiffu8);
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*q9u8 = vqaddq_u8(*q9u8, qdiffu8);
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*q10u8 = vqaddq_u8(*q10u8, qdiffu8);
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*q11u8 = vqaddq_u8(*q11u8, qdiffu8);
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*q12u8 = vqaddq_u8(*q12u8, qdiffu8);
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*q13u8 = vqaddq_u8(*q13u8, qdiffu8);
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*q14u8 = vqaddq_u8(*q14u8, qdiffu8);
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*q15u8 = vqaddq_u8(*q15u8, qdiffu8);
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return;
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}
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static INLINE void SUB_DIFF_16x8(
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uint8x16_t qdiffu8,
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uint8x16_t *q8u8,
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uint8x16_t *q9u8,
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uint8x16_t *q10u8,
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uint8x16_t *q11u8,
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uint8x16_t *q12u8,
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uint8x16_t *q13u8,
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uint8x16_t *q14u8,
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uint8x16_t *q15u8) {
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*q8u8 = vqsubq_u8(*q8u8, qdiffu8);
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*q9u8 = vqsubq_u8(*q9u8, qdiffu8);
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*q10u8 = vqsubq_u8(*q10u8, qdiffu8);
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*q11u8 = vqsubq_u8(*q11u8, qdiffu8);
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*q12u8 = vqsubq_u8(*q12u8, qdiffu8);
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*q13u8 = vqsubq_u8(*q13u8, qdiffu8);
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*q14u8 = vqsubq_u8(*q14u8, qdiffu8);
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*q15u8 = vqsubq_u8(*q15u8, qdiffu8);
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return;
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}
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static INLINE void ST_16x8(
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uint8_t *d,
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int d_stride,
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uint8x16_t *q8u8,
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uint8x16_t *q9u8,
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uint8x16_t *q10u8,
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uint8x16_t *q11u8,
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uint8x16_t *q12u8,
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uint8x16_t *q13u8,
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uint8x16_t *q14u8,
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uint8x16_t *q15u8) {
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vst1q_u8(d, *q8u8);
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d += d_stride;
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vst1q_u8(d, *q9u8);
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d += d_stride;
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vst1q_u8(d, *q10u8);
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d += d_stride;
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vst1q_u8(d, *q11u8);
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d += d_stride;
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vst1q_u8(d, *q12u8);
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d += d_stride;
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vst1q_u8(d, *q13u8);
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d += d_stride;
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vst1q_u8(d, *q14u8);
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d += d_stride;
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vst1q_u8(d, *q15u8);
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return;
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}
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void vpx_idct32x32_1_add_neon(
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int16_t *input,
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uint8_t *dest,
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int dest_stride) {
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uint8x16_t q0u8, q8u8, q9u8, q10u8, q11u8, q12u8, q13u8, q14u8, q15u8;
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int i, j, dest_stride8;
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uint8_t *d;
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int16_t a1, cospi_16_64 = 11585;
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int16_t out = dct_const_round_shift(input[0] * cospi_16_64);
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out = dct_const_round_shift(out * cospi_16_64);
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a1 = ROUND_POWER_OF_TWO(out, 6);
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dest_stride8 = dest_stride * 8;
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if (a1 >= 0) { // diff_positive_32_32
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a1 = a1 < 0 ? 0 : a1 > 255 ? 255 : a1;
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q0u8 = vdupq_n_u8(a1);
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for (i = 0; i < 2; i++, dest += 16) { // diff_positive_32_32_loop
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d = dest;
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for (j = 0; j < 4; j++) {
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LD_16x8(d, dest_stride, &q8u8, &q9u8, &q10u8, &q11u8,
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&q12u8, &q13u8, &q14u8, &q15u8);
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ADD_DIFF_16x8(q0u8, &q8u8, &q9u8, &q10u8, &q11u8,
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&q12u8, &q13u8, &q14u8, &q15u8);
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ST_16x8(d, dest_stride, &q8u8, &q9u8, &q10u8, &q11u8,
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&q12u8, &q13u8, &q14u8, &q15u8);
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d += dest_stride8;
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}
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}
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} else { // diff_negative_32_32
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a1 = -a1;
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a1 = a1 < 0 ? 0 : a1 > 255 ? 255 : a1;
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q0u8 = vdupq_n_u8(a1);
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for (i = 0; i < 2; i++, dest += 16) { // diff_negative_32_32_loop
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d = dest;
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for (j = 0; j < 4; j++) {
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LD_16x8(d, dest_stride, &q8u8, &q9u8, &q10u8, &q11u8,
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&q12u8, &q13u8, &q14u8, &q15u8);
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SUB_DIFF_16x8(q0u8, &q8u8, &q9u8, &q10u8, &q11u8,
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&q12u8, &q13u8, &q14u8, &q15u8);
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ST_16x8(d, dest_stride, &q8u8, &q9u8, &q10u8, &q11u8,
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&q12u8, &q13u8, &q14u8, &q15u8);
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d += dest_stride8;
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}
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}
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}
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return;
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}
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