vpx_dsp/mips/inv_txfm_dspr2.h

   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
  22 extern "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
  52 void vpx_idct32_cols_add_blk_dspr2(int16_t *input, uint8_t *dest,
  53                                    int dest_stride);
  54 void vpx_idct4_rows_dspr2(const int16_t *input, int16_t *output);
  55 void vpx_idct4_columns_add_blk_dspr2(int16_t *input, uint8_t *dest,
  56                                      int dest_stride);
  57 void iadst4_dspr2(const int16_t *input, int16_t *output);
  58 void idct8_rows_dspr2(const int16_t *input, int16_t *output, uint32_t no_rows);
  59 void idct8_columns_add_blk_dspr2(int16_t *input, uint8_t *dest,
  60                                  int dest_stride);
  61 void iadst8_dspr2(const int16_t *input, int16_t *output);
  62 void idct16_rows_dspr2(const int16_t *input, int16_t *output,
  63                        uint32_t no_rows);
  64 void idct16_cols_add_blk_dspr2(int16_t *input, uint8_t *dest,
  65                                int dest_stride);
  66 void 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_