ref: a04f68148f2b78c4eb1f356c12952c716f67adf0
dir: /vpx_dsp/mips/inv_txfm_dspr2.h/
/*
* 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.
*/
#ifndef VPX_VPX_DSP_MIPS_INV_TXFM_DSPR2_H_
#define VPX_VPX_DSP_MIPS_INV_TXFM_DSPR2_H_
#include <assert.h>
#include "./vpx_config.h"
#include "vpx/vpx_integer.h"
#include "vpx_dsp/inv_txfm.h"
#include "vpx_dsp/mips/common_dspr2.h"
#ifdef __cplusplus
extern "C" {
#endif
#if HAVE_DSPR2
#define DCT_CONST_ROUND_SHIFT_TWICE_COSPI_16_64(input) \
({ \
int32_t tmp, out; \
int dct_cost_rounding = DCT_CONST_ROUNDING; \
int in = input; \
\
__asm__ __volatile__(/* out = dct_const_round_shift(dc * cospi_16_64); */ \
"mtlo %[dct_cost_rounding], $ac1 " \
" \n\t" \
"mthi $zero, $ac1 " \
" \n\t" \
"madd $ac1, %[in], " \
"%[cospi_16_64] \n\t" \
"extp %[tmp], $ac1, " \
"31 \n\t" \
\
/* out = dct_const_round_shift(out * cospi_16_64); */ \
"mtlo %[dct_cost_rounding], $ac2 " \
" \n\t" \
"mthi $zero, $ac2 " \
" \n\t" \
"madd $ac2, %[tmp], " \
"%[cospi_16_64] \n\t" \
"extp %[out], $ac2, " \
"31 \n\t" \
\
: [tmp] "=&r"(tmp), [out] "=r"(out) \
: [in] "r"(in), \
[dct_cost_rounding] "r"(dct_cost_rounding), \
[cospi_16_64] "r"(cospi_16_64)); \
out; \
})
void vpx_idct32_cols_add_blk_dspr2(int16_t *input, uint8_t *dest, int stride);
void vpx_idct4_rows_dspr2(const int16_t *input, int16_t *output);
void vpx_idct4_columns_add_blk_dspr2(int16_t *input, uint8_t *dest, int stride);
void iadst4_dspr2(const int16_t *input, int16_t *output);
void idct8_rows_dspr2(const int16_t *input, int16_t *output, uint32_t no_rows);
void idct8_columns_add_blk_dspr2(int16_t *input, uint8_t *dest, int stride);
void iadst8_dspr2(const int16_t *input, int16_t *output);
void idct16_rows_dspr2(const int16_t *input, int16_t *output, uint32_t no_rows);
void idct16_cols_add_blk_dspr2(int16_t *input, uint8_t *dest, int stride);
void iadst16_dspr2(const int16_t *input, int16_t *output);
#endif // #if HAVE_DSPR2
#ifdef __cplusplus
} // extern "C"
#endif
#endif // VPX_VPX_DSP_MIPS_INV_TXFM_DSPR2_H_