765 lines
25 KiB
C
765 lines
25 KiB
C
/*
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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_dsp_rtcd.h"
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#include "vpx_dsp/arm/idct_neon.h"
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#include "vpx_dsp/arm/mem_neon.h"
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#include "vpx_dsp/txfm_common.h"
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static INLINE void wrap_low_4x2(const int32x4_t *const t32, int16x4_t *const d0,
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int16x4_t *const d1) {
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*d0 = vrshrn_n_s32(t32[0], DCT_CONST_BITS);
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*d1 = vrshrn_n_s32(t32[1], DCT_CONST_BITS);
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}
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static INLINE void idct_cospi_8_24_d_kernel(const int16x4_t s0,
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const int16x4_t s1,
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const int16x4_t cospi_0_8_16_24,
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int32x4_t *const t32) {
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t32[0] = vmull_lane_s16(s0, cospi_0_8_16_24, 3);
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t32[1] = vmull_lane_s16(s1, cospi_0_8_16_24, 3);
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t32[0] = vmlsl_lane_s16(t32[0], s1, cospi_0_8_16_24, 1);
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t32[1] = vmlal_lane_s16(t32[1], s0, cospi_0_8_16_24, 1);
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}
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static INLINE void idct_cospi_8_24_d(const int16x4_t s0, const int16x4_t s1,
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const int16x4_t cospi_0_8_16_24,
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int16x4_t *const d0, int16x4_t *const d1) {
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int32x4_t t32[2];
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idct_cospi_8_24_d_kernel(s0, s1, cospi_0_8_16_24, t32);
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wrap_low_4x2(t32, d0, d1);
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}
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static INLINE void idct_cospi_8_24_neg_d(const int16x4_t s0, const int16x4_t s1,
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const int16x4_t cospi_0_8_16_24,
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int16x4_t *const d0,
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int16x4_t *const d1) {
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int32x4_t t32[2];
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idct_cospi_8_24_d_kernel(s0, s1, cospi_0_8_16_24, t32);
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t32[1] = vnegq_s32(t32[1]);
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wrap_low_4x2(t32, d0, d1);
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}
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static INLINE void idct_cospi_16_16_d(const int16x4_t s0, const int16x4_t s1,
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const int16x4_t cospi_0_8_16_24,
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int16x4_t *const d0,
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int16x4_t *const d1) {
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int32x4_t t32[3];
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t32[2] = vmull_lane_s16(s1, cospi_0_8_16_24, 2);
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t32[0] = vmlsl_lane_s16(t32[2], s0, cospi_0_8_16_24, 2);
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t32[1] = vmlal_lane_s16(t32[2], s0, cospi_0_8_16_24, 2);
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wrap_low_4x2(t32, d0, d1);
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}
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void vpx_idct16x16_256_add_half1d(const void *const input, int16_t *output,
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void *const dest, const int stride,
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const int highbd_flag) {
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const int16x8_t cospis0 = vld1q_s16(kCospi);
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const int16x8_t cospis1 = vld1q_s16(kCospi + 8);
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const int16x4_t cospi_0_8_16_24 = vget_low_s16(cospis0);
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const int16x4_t cospi_4_12_20N_28 = vget_high_s16(cospis0);
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const int16x4_t cospi_2_30_10_22 = vget_low_s16(cospis1);
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const int16x4_t cospi_6_26N_14_18N = vget_high_s16(cospis1);
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int16x8_t in[16], step1[16], step2[16], out[16];
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// Load input (16x8)
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if (output) {
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const tran_low_t *inputT = (const tran_low_t *)input;
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in[0] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[8] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[1] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[9] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[2] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[10] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[3] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[11] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[4] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[12] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[5] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[13] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[6] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[14] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[7] = load_tran_low_to_s16q(inputT);
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inputT += 8;
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in[15] = load_tran_low_to_s16q(inputT);
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} else {
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const int16_t *inputT = (const int16_t *)input;
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in[0] = vld1q_s16(inputT);
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inputT += 8;
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in[8] = vld1q_s16(inputT);
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inputT += 8;
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in[1] = vld1q_s16(inputT);
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inputT += 8;
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in[9] = vld1q_s16(inputT);
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inputT += 8;
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in[2] = vld1q_s16(inputT);
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inputT += 8;
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in[10] = vld1q_s16(inputT);
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inputT += 8;
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in[3] = vld1q_s16(inputT);
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inputT += 8;
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in[11] = vld1q_s16(inputT);
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inputT += 8;
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in[4] = vld1q_s16(inputT);
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inputT += 8;
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in[12] = vld1q_s16(inputT);
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inputT += 8;
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in[5] = vld1q_s16(inputT);
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inputT += 8;
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in[13] = vld1q_s16(inputT);
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inputT += 8;
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in[6] = vld1q_s16(inputT);
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inputT += 8;
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in[14] = vld1q_s16(inputT);
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inputT += 8;
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in[7] = vld1q_s16(inputT);
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inputT += 8;
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in[15] = vld1q_s16(inputT);
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}
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// Transpose
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transpose_s16_8x8(&in[0], &in[1], &in[2], &in[3], &in[4], &in[5], &in[6],
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&in[7]);
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transpose_s16_8x8(&in[8], &in[9], &in[10], &in[11], &in[12], &in[13], &in[14],
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&in[15]);
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// stage 1
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step1[0] = in[0 / 2];
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step1[1] = in[16 / 2];
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step1[2] = in[8 / 2];
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step1[3] = in[24 / 2];
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step1[4] = in[4 / 2];
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step1[5] = in[20 / 2];
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step1[6] = in[12 / 2];
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step1[7] = in[28 / 2];
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step1[8] = in[2 / 2];
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step1[9] = in[18 / 2];
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step1[10] = in[10 / 2];
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step1[11] = in[26 / 2];
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step1[12] = in[6 / 2];
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step1[13] = in[22 / 2];
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step1[14] = in[14 / 2];
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step1[15] = in[30 / 2];
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// stage 2
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step2[0] = step1[0];
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step2[1] = step1[1];
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step2[2] = step1[2];
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step2[3] = step1[3];
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step2[4] = step1[4];
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step2[5] = step1[5];
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step2[6] = step1[6];
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step2[7] = step1[7];
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idct_cospi_2_30(step1[8], step1[15], cospi_2_30_10_22, &step2[8], &step2[15]);
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idct_cospi_14_18(step1[9], step1[14], cospi_6_26N_14_18N, &step2[9],
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&step2[14]);
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idct_cospi_10_22(step1[10], step1[13], cospi_2_30_10_22, &step2[10],
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&step2[13]);
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idct_cospi_6_26(step1[11], step1[12], cospi_6_26N_14_18N, &step2[11],
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&step2[12]);
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// stage 3
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step1[0] = step2[0];
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step1[1] = step2[1];
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step1[2] = step2[2];
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step1[3] = step2[3];
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idct_cospi_4_28(step2[4], step2[7], cospi_4_12_20N_28, &step1[4], &step1[7]);
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idct_cospi_12_20(step2[5], step2[6], cospi_4_12_20N_28, &step1[5], &step1[6]);
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step1[8] = vaddq_s16(step2[8], step2[9]);
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step1[9] = vsubq_s16(step2[8], step2[9]);
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step1[10] = vsubq_s16(step2[11], step2[10]);
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step1[11] = vaddq_s16(step2[11], step2[10]);
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step1[12] = vaddq_s16(step2[12], step2[13]);
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step1[13] = vsubq_s16(step2[12], step2[13]);
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step1[14] = vsubq_s16(step2[15], step2[14]);
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step1[15] = vaddq_s16(step2[15], step2[14]);
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// stage 4
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idct_cospi_16_16_q(step1[1], step1[0], cospi_0_8_16_24, &step2[1], &step2[0]);
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idct_cospi_8_24_q(step1[2], step1[3], cospi_0_8_16_24, &step2[2], &step2[3]);
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step2[4] = vaddq_s16(step1[4], step1[5]);
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step2[5] = vsubq_s16(step1[4], step1[5]);
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step2[6] = vsubq_s16(step1[7], step1[6]);
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step2[7] = vaddq_s16(step1[7], step1[6]);
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step2[8] = step1[8];
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idct_cospi_8_24_q(step1[14], step1[9], cospi_0_8_16_24, &step2[9],
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&step2[14]);
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idct_cospi_8_24_neg_q(step1[13], step1[10], cospi_0_8_16_24, &step2[13],
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&step2[10]);
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step2[11] = step1[11];
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step2[12] = step1[12];
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step2[15] = step1[15];
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// stage 5
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step1[0] = vaddq_s16(step2[0], step2[3]);
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step1[1] = vaddq_s16(step2[1], step2[2]);
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step1[2] = vsubq_s16(step2[1], step2[2]);
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step1[3] = vsubq_s16(step2[0], step2[3]);
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step1[4] = step2[4];
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idct_cospi_16_16_q(step2[5], step2[6], cospi_0_8_16_24, &step1[5], &step1[6]);
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step1[7] = step2[7];
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step1[8] = vaddq_s16(step2[8], step2[11]);
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step1[9] = vaddq_s16(step2[9], step2[10]);
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step1[10] = vsubq_s16(step2[9], step2[10]);
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step1[11] = vsubq_s16(step2[8], step2[11]);
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step1[12] = vsubq_s16(step2[15], step2[12]);
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step1[13] = vsubq_s16(step2[14], step2[13]);
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step1[14] = vaddq_s16(step2[14], step2[13]);
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step1[15] = vaddq_s16(step2[15], step2[12]);
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// stage 6
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step2[0] = vaddq_s16(step1[0], step1[7]);
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step2[1] = vaddq_s16(step1[1], step1[6]);
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step2[2] = vaddq_s16(step1[2], step1[5]);
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step2[3] = vaddq_s16(step1[3], step1[4]);
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step2[4] = vsubq_s16(step1[3], step1[4]);
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step2[5] = vsubq_s16(step1[2], step1[5]);
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step2[6] = vsubq_s16(step1[1], step1[6]);
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step2[7] = vsubq_s16(step1[0], step1[7]);
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idct_cospi_16_16_q(step1[10], step1[13], cospi_0_8_16_24, &step2[10],
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&step2[13]);
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idct_cospi_16_16_q(step1[11], step1[12], cospi_0_8_16_24, &step2[11],
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&step2[12]);
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step2[8] = step1[8];
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step2[9] = step1[9];
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step2[14] = step1[14];
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step2[15] = step1[15];
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// stage 7
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idct16x16_add_stage7(step2, out);
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if (output) {
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idct16x16_store_pass1(out, output);
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} else {
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if (highbd_flag) {
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idct16x16_add_store_bd8(out, dest, stride);
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} else {
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idct16x16_add_store(out, dest, stride);
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}
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}
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}
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void vpx_idct16x16_38_add_half1d(const void *const input, int16_t *const output,
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void *const dest, const int stride,
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const int highbd_flag) {
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const int16x8_t cospis0 = vld1q_s16(kCospi);
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const int16x8_t cospis1 = vld1q_s16(kCospi + 8);
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const int16x8_t cospisd0 = vaddq_s16(cospis0, cospis0);
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const int16x8_t cospisd1 = vaddq_s16(cospis1, cospis1);
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const int16x4_t cospi_0_8_16_24 = vget_low_s16(cospis0);
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const int16x4_t cospid_0_8_16_24 = vget_low_s16(cospisd0);
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const int16x4_t cospid_4_12_20N_28 = vget_high_s16(cospisd0);
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const int16x4_t cospid_2_30_10_22 = vget_low_s16(cospisd1);
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const int16x4_t cospid_6_26_14_18N = vget_high_s16(cospisd1);
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int16x8_t in[8], step1[16], step2[16], out[16];
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// Load input (8x8)
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if (output) {
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const tran_low_t *inputT = (const tran_low_t *)input;
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in[0] = load_tran_low_to_s16q(inputT);
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inputT += 16;
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in[1] = load_tran_low_to_s16q(inputT);
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inputT += 16;
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in[2] = load_tran_low_to_s16q(inputT);
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inputT += 16;
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in[3] = load_tran_low_to_s16q(inputT);
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inputT += 16;
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in[4] = load_tran_low_to_s16q(inputT);
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inputT += 16;
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in[5] = load_tran_low_to_s16q(inputT);
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inputT += 16;
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in[6] = load_tran_low_to_s16q(inputT);
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inputT += 16;
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in[7] = load_tran_low_to_s16q(inputT);
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} else {
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const int16_t *inputT = (const int16_t *)input;
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in[0] = vld1q_s16(inputT);
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inputT += 16;
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in[1] = vld1q_s16(inputT);
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inputT += 16;
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in[2] = vld1q_s16(inputT);
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inputT += 16;
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in[3] = vld1q_s16(inputT);
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inputT += 16;
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in[4] = vld1q_s16(inputT);
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inputT += 16;
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in[5] = vld1q_s16(inputT);
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inputT += 16;
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in[6] = vld1q_s16(inputT);
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inputT += 16;
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in[7] = vld1q_s16(inputT);
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}
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// Transpose
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transpose_s16_8x8(&in[0], &in[1], &in[2], &in[3], &in[4], &in[5], &in[6],
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&in[7]);
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// stage 1
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step1[0] = in[0 / 2];
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step1[2] = in[8 / 2];
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step1[4] = in[4 / 2];
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step1[6] = in[12 / 2];
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step1[8] = in[2 / 2];
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step1[10] = in[10 / 2];
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step1[12] = in[6 / 2];
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step1[14] = in[14 / 2]; // 0 in pass 1
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// stage 2
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step2[0] = step1[0];
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step2[2] = step1[2];
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step2[4] = step1[4];
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step2[6] = step1[6];
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step2[8] = vqrdmulhq_lane_s16(step1[8], cospid_2_30_10_22, 1);
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step2[9] = vqrdmulhq_lane_s16(step1[14], cospid_6_26_14_18N, 3);
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step2[10] = vqrdmulhq_lane_s16(step1[10], cospid_2_30_10_22, 3);
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step2[11] = vqrdmulhq_lane_s16(step1[12], cospid_6_26_14_18N, 1);
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step2[12] = vqrdmulhq_lane_s16(step1[12], cospid_6_26_14_18N, 0);
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step2[13] = vqrdmulhq_lane_s16(step1[10], cospid_2_30_10_22, 2);
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step2[14] = vqrdmulhq_lane_s16(step1[14], cospid_6_26_14_18N, 2);
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step2[15] = vqrdmulhq_lane_s16(step1[8], cospid_2_30_10_22, 0);
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// stage 3
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step1[0] = step2[0];
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step1[2] = step2[2];
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step1[4] = vqrdmulhq_lane_s16(step2[4], cospid_4_12_20N_28, 3);
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step1[5] = vqrdmulhq_lane_s16(step2[6], cospid_4_12_20N_28, 2);
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step1[6] = vqrdmulhq_lane_s16(step2[6], cospid_4_12_20N_28, 1);
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step1[7] = vqrdmulhq_lane_s16(step2[4], cospid_4_12_20N_28, 0);
|
|
step1[8] = vaddq_s16(step2[8], step2[9]);
|
|
step1[9] = vsubq_s16(step2[8], step2[9]);
|
|
step1[10] = vsubq_s16(step2[11], step2[10]);
|
|
step1[11] = vaddq_s16(step2[11], step2[10]);
|
|
step1[12] = vaddq_s16(step2[12], step2[13]);
|
|
step1[13] = vsubq_s16(step2[12], step2[13]);
|
|
step1[14] = vsubq_s16(step2[15], step2[14]);
|
|
step1[15] = vaddq_s16(step2[15], step2[14]);
|
|
|
|
// stage 4
|
|
step2[0] = step2[1] = vqrdmulhq_lane_s16(step1[0], cospid_0_8_16_24, 2);
|
|
step2[2] = vqrdmulhq_lane_s16(step1[2], cospid_0_8_16_24, 3);
|
|
step2[3] = vqrdmulhq_lane_s16(step1[2], cospid_0_8_16_24, 1);
|
|
step2[4] = vaddq_s16(step1[4], step1[5]);
|
|
step2[5] = vsubq_s16(step1[4], step1[5]);
|
|
step2[6] = vsubq_s16(step1[7], step1[6]);
|
|
step2[7] = vaddq_s16(step1[7], step1[6]);
|
|
step2[8] = step1[8];
|
|
idct_cospi_8_24_q(step1[14], step1[9], cospi_0_8_16_24, &step2[9],
|
|
&step2[14]);
|
|
idct_cospi_8_24_neg_q(step1[13], step1[10], cospi_0_8_16_24, &step2[13],
|
|
&step2[10]);
|
|
step2[11] = step1[11];
|
|
step2[12] = step1[12];
|
|
step2[15] = step1[15];
|
|
|
|
// stage 5
|
|
step1[0] = vaddq_s16(step2[0], step2[3]);
|
|
step1[1] = vaddq_s16(step2[1], step2[2]);
|
|
step1[2] = vsubq_s16(step2[1], step2[2]);
|
|
step1[3] = vsubq_s16(step2[0], step2[3]);
|
|
step1[4] = step2[4];
|
|
idct_cospi_16_16_q(step2[5], step2[6], cospi_0_8_16_24, &step1[5], &step1[6]);
|
|
step1[7] = step2[7];
|
|
step1[8] = vaddq_s16(step2[8], step2[11]);
|
|
step1[9] = vaddq_s16(step2[9], step2[10]);
|
|
step1[10] = vsubq_s16(step2[9], step2[10]);
|
|
step1[11] = vsubq_s16(step2[8], step2[11]);
|
|
step1[12] = vsubq_s16(step2[15], step2[12]);
|
|
step1[13] = vsubq_s16(step2[14], step2[13]);
|
|
step1[14] = vaddq_s16(step2[14], step2[13]);
|
|
step1[15] = vaddq_s16(step2[15], step2[12]);
|
|
|
|
// stage 6
|
|
step2[0] = vaddq_s16(step1[0], step1[7]);
|
|
step2[1] = vaddq_s16(step1[1], step1[6]);
|
|
step2[2] = vaddq_s16(step1[2], step1[5]);
|
|
step2[3] = vaddq_s16(step1[3], step1[4]);
|
|
step2[4] = vsubq_s16(step1[3], step1[4]);
|
|
step2[5] = vsubq_s16(step1[2], step1[5]);
|
|
step2[6] = vsubq_s16(step1[1], step1[6]);
|
|
step2[7] = vsubq_s16(step1[0], step1[7]);
|
|
idct_cospi_16_16_q(step1[10], step1[13], cospi_0_8_16_24, &step2[10],
|
|
&step2[13]);
|
|
idct_cospi_16_16_q(step1[11], step1[12], cospi_0_8_16_24, &step2[11],
|
|
&step2[12]);
|
|
step2[8] = step1[8];
|
|
step2[9] = step1[9];
|
|
step2[14] = step1[14];
|
|
step2[15] = step1[15];
|
|
|
|
// stage 7
|
|
idct16x16_add_stage7(step2, out);
|
|
|
|
if (output) {
|
|
idct16x16_store_pass1(out, output);
|
|
} else {
|
|
if (highbd_flag) {
|
|
idct16x16_add_store_bd8(out, dest, stride);
|
|
} else {
|
|
idct16x16_add_store(out, dest, stride);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vpx_idct16x16_10_add_half1d_pass1(const tran_low_t *input,
|
|
int16_t *output) {
|
|
const int16x8_t cospis0 = vld1q_s16(kCospi);
|
|
const int16x8_t cospis1 = vld1q_s16(kCospi + 8);
|
|
const int16x8_t cospisd0 = vaddq_s16(cospis0, cospis0);
|
|
const int16x8_t cospisd1 = vaddq_s16(cospis1, cospis1);
|
|
const int16x4_t cospi_0_8_16_24 = vget_low_s16(cospis0);
|
|
const int16x4_t cospid_0_8_16_24 = vget_low_s16(cospisd0);
|
|
const int16x4_t cospid_4_12_20N_28 = vget_high_s16(cospisd0);
|
|
const int16x4_t cospid_2_30_10_22 = vget_low_s16(cospisd1);
|
|
const int16x4_t cospid_6_26_14_18N = vget_high_s16(cospisd1);
|
|
int16x4_t in[4], step1[16], step2[16], out[16];
|
|
|
|
// Load input (4x4)
|
|
in[0] = load_tran_low_to_s16d(input);
|
|
input += 16;
|
|
in[1] = load_tran_low_to_s16d(input);
|
|
input += 16;
|
|
in[2] = load_tran_low_to_s16d(input);
|
|
input += 16;
|
|
in[3] = load_tran_low_to_s16d(input);
|
|
|
|
// Transpose
|
|
transpose_s16_4x4d(&in[0], &in[1], &in[2], &in[3]);
|
|
|
|
// stage 1
|
|
step1[0] = in[0 / 2];
|
|
step1[4] = in[4 / 2];
|
|
step1[8] = in[2 / 2];
|
|
step1[12] = in[6 / 2];
|
|
|
|
// stage 2
|
|
step2[0] = step1[0];
|
|
step2[4] = step1[4];
|
|
step2[8] = vqrdmulh_lane_s16(step1[8], cospid_2_30_10_22, 1);
|
|
step2[11] = vqrdmulh_lane_s16(step1[12], cospid_6_26_14_18N, 1);
|
|
step2[12] = vqrdmulh_lane_s16(step1[12], cospid_6_26_14_18N, 0);
|
|
step2[15] = vqrdmulh_lane_s16(step1[8], cospid_2_30_10_22, 0);
|
|
|
|
// stage 3
|
|
step1[0] = step2[0];
|
|
step1[4] = vqrdmulh_lane_s16(step2[4], cospid_4_12_20N_28, 3);
|
|
step1[7] = vqrdmulh_lane_s16(step2[4], cospid_4_12_20N_28, 0);
|
|
step1[8] = step2[8];
|
|
step1[9] = step2[8];
|
|
step1[10] = step2[11];
|
|
step1[11] = step2[11];
|
|
step1[12] = step2[12];
|
|
step1[13] = step2[12];
|
|
step1[14] = step2[15];
|
|
step1[15] = step2[15];
|
|
|
|
// stage 4
|
|
step2[0] = step2[1] = vqrdmulh_lane_s16(step1[0], cospid_0_8_16_24, 2);
|
|
step2[4] = step1[4];
|
|
step2[5] = step1[4];
|
|
step2[6] = step1[7];
|
|
step2[7] = step1[7];
|
|
step2[8] = step1[8];
|
|
idct_cospi_8_24_d(step1[14], step1[9], cospi_0_8_16_24, &step2[9],
|
|
&step2[14]);
|
|
idct_cospi_8_24_neg_d(step1[13], step1[10], cospi_0_8_16_24, &step2[13],
|
|
&step2[10]);
|
|
step2[11] = step1[11];
|
|
step2[12] = step1[12];
|
|
step2[15] = step1[15];
|
|
|
|
// stage 5
|
|
step1[0] = step2[0];
|
|
step1[1] = step2[1];
|
|
step1[2] = step2[1];
|
|
step1[3] = step2[0];
|
|
step1[4] = step2[4];
|
|
idct_cospi_16_16_d(step2[5], step2[6], cospi_0_8_16_24, &step1[5], &step1[6]);
|
|
step1[7] = step2[7];
|
|
step1[8] = vadd_s16(step2[8], step2[11]);
|
|
step1[9] = vadd_s16(step2[9], step2[10]);
|
|
step1[10] = vsub_s16(step2[9], step2[10]);
|
|
step1[11] = vsub_s16(step2[8], step2[11]);
|
|
step1[12] = vsub_s16(step2[15], step2[12]);
|
|
step1[13] = vsub_s16(step2[14], step2[13]);
|
|
step1[14] = vadd_s16(step2[14], step2[13]);
|
|
step1[15] = vadd_s16(step2[15], step2[12]);
|
|
|
|
// stage 6
|
|
step2[0] = vadd_s16(step1[0], step1[7]);
|
|
step2[1] = vadd_s16(step1[1], step1[6]);
|
|
step2[2] = vadd_s16(step1[2], step1[5]);
|
|
step2[3] = vadd_s16(step1[3], step1[4]);
|
|
step2[4] = vsub_s16(step1[3], step1[4]);
|
|
step2[5] = vsub_s16(step1[2], step1[5]);
|
|
step2[6] = vsub_s16(step1[1], step1[6]);
|
|
step2[7] = vsub_s16(step1[0], step1[7]);
|
|
idct_cospi_16_16_d(step1[10], step1[13], cospi_0_8_16_24, &step2[10],
|
|
&step2[13]);
|
|
idct_cospi_16_16_d(step1[11], step1[12], cospi_0_8_16_24, &step2[11],
|
|
&step2[12]);
|
|
step2[8] = step1[8];
|
|
step2[9] = step1[9];
|
|
step2[14] = step1[14];
|
|
step2[15] = step1[15];
|
|
|
|
// stage 7
|
|
out[0] = vadd_s16(step2[0], step2[15]);
|
|
out[1] = vadd_s16(step2[1], step2[14]);
|
|
out[2] = vadd_s16(step2[2], step2[13]);
|
|
out[3] = vadd_s16(step2[3], step2[12]);
|
|
out[4] = vadd_s16(step2[4], step2[11]);
|
|
out[5] = vadd_s16(step2[5], step2[10]);
|
|
out[6] = vadd_s16(step2[6], step2[9]);
|
|
out[7] = vadd_s16(step2[7], step2[8]);
|
|
out[8] = vsub_s16(step2[7], step2[8]);
|
|
out[9] = vsub_s16(step2[6], step2[9]);
|
|
out[10] = vsub_s16(step2[5], step2[10]);
|
|
out[11] = vsub_s16(step2[4], step2[11]);
|
|
out[12] = vsub_s16(step2[3], step2[12]);
|
|
out[13] = vsub_s16(step2[2], step2[13]);
|
|
out[14] = vsub_s16(step2[1], step2[14]);
|
|
out[15] = vsub_s16(step2[0], step2[15]);
|
|
|
|
// pass 1: save the result into output
|
|
vst1_s16(output, out[0]);
|
|
output += 4;
|
|
vst1_s16(output, out[1]);
|
|
output += 4;
|
|
vst1_s16(output, out[2]);
|
|
output += 4;
|
|
vst1_s16(output, out[3]);
|
|
output += 4;
|
|
vst1_s16(output, out[4]);
|
|
output += 4;
|
|
vst1_s16(output, out[5]);
|
|
output += 4;
|
|
vst1_s16(output, out[6]);
|
|
output += 4;
|
|
vst1_s16(output, out[7]);
|
|
output += 4;
|
|
vst1_s16(output, out[8]);
|
|
output += 4;
|
|
vst1_s16(output, out[9]);
|
|
output += 4;
|
|
vst1_s16(output, out[10]);
|
|
output += 4;
|
|
vst1_s16(output, out[11]);
|
|
output += 4;
|
|
vst1_s16(output, out[12]);
|
|
output += 4;
|
|
vst1_s16(output, out[13]);
|
|
output += 4;
|
|
vst1_s16(output, out[14]);
|
|
output += 4;
|
|
vst1_s16(output, out[15]);
|
|
}
|
|
|
|
void vpx_idct16x16_10_add_half1d_pass2(const int16_t *input,
|
|
int16_t *const output, void *const dest,
|
|
const int stride,
|
|
const int highbd_flag) {
|
|
const int16x8_t cospis0 = vld1q_s16(kCospi);
|
|
const int16x8_t cospis1 = vld1q_s16(kCospi + 8);
|
|
const int16x8_t cospisd0 = vaddq_s16(cospis0, cospis0);
|
|
const int16x8_t cospisd1 = vaddq_s16(cospis1, cospis1);
|
|
const int16x4_t cospi_0_8_16_24 = vget_low_s16(cospis0);
|
|
const int16x4_t cospid_0_8_16_24 = vget_low_s16(cospisd0);
|
|
const int16x4_t cospid_4_12_20N_28 = vget_high_s16(cospisd0);
|
|
const int16x4_t cospid_2_30_10_22 = vget_low_s16(cospisd1);
|
|
const int16x4_t cospid_6_26_14_18N = vget_high_s16(cospisd1);
|
|
int16x4_t ind[8];
|
|
int16x8_t in[4], step1[16], step2[16], out[16];
|
|
|
|
// Load input (4x8)
|
|
ind[0] = vld1_s16(input);
|
|
input += 4;
|
|
ind[1] = vld1_s16(input);
|
|
input += 4;
|
|
ind[2] = vld1_s16(input);
|
|
input += 4;
|
|
ind[3] = vld1_s16(input);
|
|
input += 4;
|
|
ind[4] = vld1_s16(input);
|
|
input += 4;
|
|
ind[5] = vld1_s16(input);
|
|
input += 4;
|
|
ind[6] = vld1_s16(input);
|
|
input += 4;
|
|
ind[7] = vld1_s16(input);
|
|
|
|
// Transpose
|
|
transpose_s16_4x8(ind[0], ind[1], ind[2], ind[3], ind[4], ind[5], ind[6],
|
|
ind[7], &in[0], &in[1], &in[2], &in[3]);
|
|
|
|
// stage 1
|
|
step1[0] = in[0 / 2];
|
|
step1[4] = in[4 / 2];
|
|
step1[8] = in[2 / 2];
|
|
step1[12] = in[6 / 2];
|
|
|
|
// stage 2
|
|
step2[0] = step1[0];
|
|
step2[4] = step1[4];
|
|
step2[8] = vqrdmulhq_lane_s16(step1[8], cospid_2_30_10_22, 1);
|
|
step2[11] = vqrdmulhq_lane_s16(step1[12], cospid_6_26_14_18N, 1);
|
|
step2[12] = vqrdmulhq_lane_s16(step1[12], cospid_6_26_14_18N, 0);
|
|
step2[15] = vqrdmulhq_lane_s16(step1[8], cospid_2_30_10_22, 0);
|
|
|
|
// stage 3
|
|
step1[0] = step2[0];
|
|
step1[4] = vqrdmulhq_lane_s16(step2[4], cospid_4_12_20N_28, 3);
|
|
step1[7] = vqrdmulhq_lane_s16(step2[4], cospid_4_12_20N_28, 0);
|
|
step1[8] = step2[8];
|
|
step1[9] = step2[8];
|
|
step1[10] = step2[11];
|
|
step1[11] = step2[11];
|
|
step1[12] = step2[12];
|
|
step1[13] = step2[12];
|
|
step1[14] = step2[15];
|
|
step1[15] = step2[15];
|
|
|
|
// stage 4
|
|
step2[0] = step2[1] = vqrdmulhq_lane_s16(step1[0], cospid_0_8_16_24, 2);
|
|
step2[4] = step1[4];
|
|
step2[5] = step1[4];
|
|
step2[6] = step1[7];
|
|
step2[7] = step1[7];
|
|
step2[8] = step1[8];
|
|
idct_cospi_8_24_q(step1[14], step1[9], cospi_0_8_16_24, &step2[9],
|
|
&step2[14]);
|
|
idct_cospi_8_24_neg_q(step1[13], step1[10], cospi_0_8_16_24, &step2[13],
|
|
&step2[10]);
|
|
step2[11] = step1[11];
|
|
step2[12] = step1[12];
|
|
step2[15] = step1[15];
|
|
|
|
// stage 5
|
|
step1[0] = step2[0];
|
|
step1[1] = step2[1];
|
|
step1[2] = step2[1];
|
|
step1[3] = step2[0];
|
|
step1[4] = step2[4];
|
|
idct_cospi_16_16_q(step2[5], step2[6], cospi_0_8_16_24, &step1[5], &step1[6]);
|
|
step1[7] = step2[7];
|
|
step1[8] = vaddq_s16(step2[8], step2[11]);
|
|
step1[9] = vaddq_s16(step2[9], step2[10]);
|
|
step1[10] = vsubq_s16(step2[9], step2[10]);
|
|
step1[11] = vsubq_s16(step2[8], step2[11]);
|
|
step1[12] = vsubq_s16(step2[15], step2[12]);
|
|
step1[13] = vsubq_s16(step2[14], step2[13]);
|
|
step1[14] = vaddq_s16(step2[14], step2[13]);
|
|
step1[15] = vaddq_s16(step2[15], step2[12]);
|
|
|
|
// stage 6
|
|
step2[0] = vaddq_s16(step1[0], step1[7]);
|
|
step2[1] = vaddq_s16(step1[1], step1[6]);
|
|
step2[2] = vaddq_s16(step1[2], step1[5]);
|
|
step2[3] = vaddq_s16(step1[3], step1[4]);
|
|
step2[4] = vsubq_s16(step1[3], step1[4]);
|
|
step2[5] = vsubq_s16(step1[2], step1[5]);
|
|
step2[6] = vsubq_s16(step1[1], step1[6]);
|
|
step2[7] = vsubq_s16(step1[0], step1[7]);
|
|
idct_cospi_16_16_q(step1[10], step1[13], cospi_0_8_16_24, &step2[10],
|
|
&step2[13]);
|
|
idct_cospi_16_16_q(step1[11], step1[12], cospi_0_8_16_24, &step2[11],
|
|
&step2[12]);
|
|
step2[8] = step1[8];
|
|
step2[9] = step1[9];
|
|
step2[14] = step1[14];
|
|
step2[15] = step1[15];
|
|
|
|
// stage 7
|
|
idct16x16_add_stage7(step2, out);
|
|
|
|
if (output) {
|
|
idct16x16_store_pass1(out, output);
|
|
} else {
|
|
if (highbd_flag) {
|
|
idct16x16_add_store_bd8(out, dest, stride);
|
|
} else {
|
|
idct16x16_add_store(out, dest, stride);
|
|
}
|
|
}
|
|
}
|
|
|
|
void vpx_idct16x16_256_add_neon(const tran_low_t *input, uint8_t *dest,
|
|
int stride) {
|
|
int16_t row_idct_output[16 * 16];
|
|
|
|
// pass 1
|
|
// Parallel idct on the upper 8 rows
|
|
vpx_idct16x16_256_add_half1d(input, row_idct_output, dest, stride, 0);
|
|
|
|
// Parallel idct on the lower 8 rows
|
|
vpx_idct16x16_256_add_half1d(input + 8 * 16, row_idct_output + 8, dest,
|
|
stride, 0);
|
|
|
|
// pass 2
|
|
// Parallel idct to get the left 8 columns
|
|
vpx_idct16x16_256_add_half1d(row_idct_output, NULL, dest, stride, 0);
|
|
|
|
// Parallel idct to get the right 8 columns
|
|
vpx_idct16x16_256_add_half1d(row_idct_output + 16 * 8, NULL, dest + 8, stride,
|
|
0);
|
|
}
|
|
|
|
void vpx_idct16x16_38_add_neon(const tran_low_t *input, uint8_t *dest,
|
|
int stride) {
|
|
int16_t row_idct_output[16 * 16];
|
|
|
|
// pass 1
|
|
// Parallel idct on the upper 8 rows
|
|
vpx_idct16x16_38_add_half1d(input, row_idct_output, dest, stride, 0);
|
|
|
|
// pass 2
|
|
// Parallel idct to get the left 8 columns
|
|
vpx_idct16x16_38_add_half1d(row_idct_output, NULL, dest, stride, 0);
|
|
|
|
// Parallel idct to get the right 8 columns
|
|
vpx_idct16x16_38_add_half1d(row_idct_output + 16 * 8, NULL, dest + 8, stride,
|
|
0);
|
|
}
|
|
|
|
void vpx_idct16x16_10_add_neon(const tran_low_t *input, uint8_t *dest,
|
|
int stride) {
|
|
int16_t row_idct_output[4 * 16];
|
|
|
|
// pass 1
|
|
// Parallel idct on the upper 8 rows
|
|
vpx_idct16x16_10_add_half1d_pass1(input, row_idct_output);
|
|
|
|
// pass 2
|
|
// Parallel idct to get the left 8 columns
|
|
vpx_idct16x16_10_add_half1d_pass2(row_idct_output, NULL, dest, stride, 0);
|
|
|
|
// Parallel idct to get the right 8 columns
|
|
vpx_idct16x16_10_add_half1d_pass2(row_idct_output + 4 * 8, NULL, dest + 8,
|
|
stride, 0);
|
|
}
|