inv_txfm_dspr2.h revision 7ce0a1d1337c01056ba24006efab21f00e179e04 
1/*
2 *  Copyright (c) 2013 The WebM project authors. All Rights Reserved.
3 *
4 *  Use of this source code is governed by a BSD-style license
5 *  that can be found in the LICENSE file in the root of the source
6 *  tree. An additional intellectual property rights grant can be found
7 *  in the file PATENTS.  All contributing project authors may
8 *  be found in the AUTHORS file in the root of the source tree.
9 */
10
11#ifndef VPX_DSP_MIPS_INV_TXFM_DSPR2_H_
12#define VPX_DSP_MIPS_INV_TXFM_DSPR2_H_
13
14#include <assert.h>
15
16#include "./vpx_config.h"
17#include "vpx/vpx_integer.h"
18#include "vpx_dsp/inv_txfm.h"
19#include "vpx_dsp/mips/common_dspr2.h"
20
21#ifdef __cplusplus
22extern "C" {
23#endif
24
25#if HAVE_DSPR2
26#define DCT_CONST_ROUND_SHIFT_TWICE_COSPI_16_64(input)                    ({   \
27                                                                               \
28  int32_t tmp, out;                                                            \
29  int     dct_cost_rounding = DCT_CONST_ROUNDING;                              \
30  int     in = input;                                                          \
31                                                                               \
32  __asm__ __volatile__ (                                                       \
33      /* out = dct_const_round_shift(input_dc * cospi_16_64); */               \
34      "mtlo     %[dct_cost_rounding],   $ac1                              \n\t"\
35      "mthi     $zero,                  $ac1                              \n\t"\
36      "madd     $ac1,                   %[in],            %[cospi_16_64]  \n\t"\
37      "extp     %[tmp],                 $ac1,             31              \n\t"\
38                                                                               \
39      /* out = dct_const_round_shift(out * cospi_16_64); */                    \
40      "mtlo     %[dct_cost_rounding],   $ac2                              \n\t"\
41      "mthi     $zero,                  $ac2                              \n\t"\
42      "madd     $ac2,                   %[tmp],           %[cospi_16_64]  \n\t"\
43      "extp     %[out],                 $ac2,             31              \n\t"\
44                                                                               \
45      : [tmp] "=&r" (tmp), [out] "=r" (out)                                    \
46      : [in] "r" (in),                                                         \
47        [dct_cost_rounding] "r" (dct_cost_rounding),                           \
48        [cospi_16_64] "r" (cospi_16_64)                                        \
49   );                                                                          \
50  out;                                                                    })
51
52void vpx_idct32_cols_add_blk_dspr2(int16_t *input, uint8_t *dest,
53                                   int dest_stride);
54void vpx_idct4_rows_dspr2(const int16_t *input, int16_t *output);
55void vpx_idct4_columns_add_blk_dspr2(int16_t *input, uint8_t *dest,
56                                     int dest_stride);
57void iadst4_dspr2(const int16_t *input, int16_t *output);
58void idct8_rows_dspr2(const int16_t *input, int16_t *output, uint32_t no_rows);
59void idct8_columns_add_blk_dspr2(int16_t *input, uint8_t *dest,
60                                 int dest_stride);
61void iadst8_dspr2(const int16_t *input, int16_t *output);
62void idct16_rows_dspr2(const int16_t *input, int16_t *output,
63                       uint32_t no_rows);
64void idct16_cols_add_blk_dspr2(int16_t *input, uint8_t *dest,
65                               int dest_stride);
66void iadst16_dspr2(const int16_t *input, int16_t *output);
67
68#endif  // #if HAVE_DSPR2
69#ifdef __cplusplus
70}  // extern "C"
71#endif
72
73#endif  // VPX_DSP_MIPS_INV_TXFM_DSPR2_H_
74