ref: 71f9da5c7878d1227eb07d0f6578ac2f8fc72ed6
dir: /vp9/common/mips/msa/vp9_idct16x16_msa.c/
/*
* Copyright (c) 2015 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 <assert.h>
#include "./vp9_rtcd.h"
#include "vp9/common/vp9_enums.h"
#include "vpx_dsp/mips/inv_txfm_msa.h"
void vp9_iht16x16_256_add_msa(const int16_t *input, uint8_t *dst,
int32_t dst_stride, int32_t tx_type) {
int32_t i;
DECLARE_ALIGNED(32, int16_t, out[16 * 16]);
int16_t *out_ptr = &out[0];
switch (tx_type) {
case DCT_DCT:
/* transform rows */
for (i = 0; i < 2; ++i) {
/* process 16 * 8 block */
vpx_idct16_1d_rows_msa((input + (i << 7)), (out_ptr + (i << 7)));
}
/* transform columns */
for (i = 0; i < 2; ++i) {
/* process 8 * 16 block */
vpx_idct16_1d_columns_addblk_msa((out_ptr + (i << 3)), (dst + (i << 3)),
dst_stride);
}
break;
case ADST_DCT:
/* transform rows */
for (i = 0; i < 2; ++i) {
/* process 16 * 8 block */
vpx_idct16_1d_rows_msa((input + (i << 7)), (out_ptr + (i << 7)));
}
/* transform columns */
for (i = 0; i < 2; ++i) {
vpx_iadst16_1d_columns_addblk_msa((out_ptr + (i << 3)),
(dst + (i << 3)), dst_stride);
}
break;
case DCT_ADST:
/* transform rows */
for (i = 0; i < 2; ++i) {
/* process 16 * 8 block */
vpx_iadst16_1d_rows_msa((input + (i << 7)), (out_ptr + (i << 7)));
}
/* transform columns */
for (i = 0; i < 2; ++i) {
/* process 8 * 16 block */
vpx_idct16_1d_columns_addblk_msa((out_ptr + (i << 3)), (dst + (i << 3)),
dst_stride);
}
break;
case ADST_ADST:
/* transform rows */
for (i = 0; i < 2; ++i) {
/* process 16 * 8 block */
vpx_iadst16_1d_rows_msa((input + (i << 7)), (out_ptr + (i << 7)));
}
/* transform columns */
for (i = 0; i < 2; ++i) {
vpx_iadst16_1d_columns_addblk_msa((out_ptr + (i << 3)),
(dst + (i << 3)), dst_stride);
}
break;
default: assert(0); break;
}
}