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/*
* Copyright (c) 2013 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 <stdio.h>
#include "./vpx_config.h"
#include "./vp10_rtcd.h"
#include "vp10/common/common.h"
#include "vp10/common/blockd.h"
#include "vp10/common/idct.h"
#include "vpx_dsp/mips/inv_txfm_dspr2.h"
#include "vpx_dsp/txfm_common.h"
#include "vpx_ports/mem.h"
#if HAVE_DSPR2
void vp10_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
vpx_idct4_rows_dspr2(input, outptr);
vpx_idct4_columns_add_blk_dspr2(&out[0], dest, dest_stride);
break;
case ADST_DCT: // ADST in vertical, DCT in horizontal
vpx_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];
}
}
vpx_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("vp10_short_iht4x4_add_dspr2 : Invalid tx_type\n");
break;
}
}
#endif // #if HAVE_DSPR2
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