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/*
* 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 <assert.h>
#include <stdio.h>
#include "./aom_config.h"
#include "./av1_rtcd.h"
#include "av1/common/common.h"
#include "av1/common/blockd.h"
#include "av1/common/idct.h"
#include "aom_dsp/mips/inv_txfm_dspr2.h"
#include "aom_dsp/txfm_common.h"
#include "aom_ports/mem.h"
#if HAVE_DSPR2
void av1_iht4x4_16_add_dspr2(const int16_t *input, uint8_t *dest,
int dest_stride, int tx_type) {
int i, j;
DECLARE_ALIGNED(32, int16_t, out[4 * 4]);
int16_t *outptr = out;
int16_t temp_in[4 * 4], temp_out[4];
uint32_t pos = 45;
/* bit positon for extract from acc */
__asm__ __volatile__("wrdsp %[pos], 1 \n\t"
:
: [pos] "r"(pos));
switch (tx_type) {
case DCT_DCT: // DCT in both horizontal and vertical
aom_idct4_rows_dspr2(input, outptr);
aom_idct4_columns_add_blk_dspr2(&out[0], dest, dest_stride);
break;
case ADST_DCT: // ADST in vertical, DCT in horizontal
aom_idct4_rows_dspr2(input, outptr);
outptr = out;
for (i = 0; i < 4; ++i) {
iadst4_dspr2(outptr, temp_out);
for (j = 0; j < 4; ++j)
dest[j * dest_stride + i] = clip_pixel(
ROUND_POWER_OF_TWO(temp_out[j], 4) + dest[j * dest_stride + i]);
outptr += 4;
}
break;
case DCT_ADST: // DCT in vertical, ADST in horizontal
for (i = 0; i < 4; ++i) {
iadst4_dspr2(input, outptr);
input += 4;
outptr += 4;
}
for (i = 0; i < 4; ++i) {
for (j = 0; j < 4; ++j) {
temp_in[i * 4 + j] = out[j * 4 + i];
}
}
aom_idct4_columns_add_blk_dspr2(&temp_in[0], dest, dest_stride);
break;
case ADST_ADST: // ADST in both directions
for (i = 0; i < 4; ++i) {
iadst4_dspr2(input, outptr);
input += 4;
outptr += 4;
}
for (i = 0; i < 4; ++i) {
for (j = 0; j < 4; ++j) temp_in[j] = out[j * 4 + i];
iadst4_dspr2(temp_in, temp_out);
for (j = 0; j < 4; ++j)
dest[j * dest_stride + i] = clip_pixel(
ROUND_POWER_OF_TWO(temp_out[j], 4) + dest[j * dest_stride + i]);
}
break;
default: printf("av1_short_iht4x4_add_dspr2 : Invalid tx_type\n"); break;
}
}
#endif // #if HAVE_DSPR2
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