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/*
* Copyright (c) 2014 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 <arm_neon.h>
#include <assert.h>
#include "./vp9_rtcd.h"
#include "./vpx_config.h"
#include "vp9/common/vp9_common.h"
#include "vp9/common/arm/neon/vp9_iht_neon.h"
#include "vpx_dsp/arm/idct_neon.h"
#include "vpx_dsp/arm/mem_neon.h"
#include "vpx_dsp/arm/transpose_neon.h"
void vp9_iht8x8_64_add_neon(const tran_low_t *input, uint8_t *dest, int stride,
int tx_type) {
const int16x8_t cospis = vld1q_s16(kCospi);
const int16x4_t cospis0 = vget_low_s16(cospis); // cospi 0, 8, 16, 24
const int16x4_t cospis1 = vget_high_s16(cospis); // cospi 4, 12, 20, 28
int16x8_t a[8];
a[0] = load_tran_low_to_s16q(input + 0 * 8);
a[1] = load_tran_low_to_s16q(input + 1 * 8);
a[2] = load_tran_low_to_s16q(input + 2 * 8);
a[3] = load_tran_low_to_s16q(input + 3 * 8);
a[4] = load_tran_low_to_s16q(input + 4 * 8);
a[5] = load_tran_low_to_s16q(input + 5 * 8);
a[6] = load_tran_low_to_s16q(input + 6 * 8);
a[7] = load_tran_low_to_s16q(input + 7 * 8);
transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]);
switch (tx_type) {
case DCT_DCT:
idct8x8_64_1d_bd8_kernel(cospis0, cospis1, a);
transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]);
idct8x8_64_1d_bd8_kernel(cospis0, cospis1, a);
break;
case ADST_DCT:
idct8x8_64_1d_bd8_kernel(cospis0, cospis1, a);
transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]);
iadst8(a);
break;
case DCT_ADST:
iadst8(a);
transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]);
idct8x8_64_1d_bd8_kernel(cospis0, cospis1, a);
break;
default:
assert(tx_type == ADST_ADST);
iadst8(a);
transpose_s16_8x8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]);
iadst8(a);
break;
}
idct8x8_add8x8_neon(a, dest, stride);
}
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