Exemple #1
0
void vpx_fdct16x16_msa(const int16_t *input, int16_t *output,
                       int32_t src_stride) {
  int32_t i;
  DECLARE_ALIGNED(32, int16_t, tmp_buf[16 * 16]);

  /* column transform */
  for (i = 0; i < 2; ++i) {
    fdct8x16_1d_column((input + 8 * i), (&tmp_buf[0] + 8 * i), src_stride);
  }

  /* row transform */
  for (i = 0; i < 2; ++i) {
    fdct16x8_1d_row((&tmp_buf[0] + (128 * i)), (output + (128 * i)));
  }
}
Exemple #2
0
void av1_fht16x16_msa(const int16_t *input, int16_t *output, int32_t stride,
                       int32_t tx_type) {
  DECLARE_ALIGNED(32, int16_t, tmp[256]);
  DECLARE_ALIGNED(32, int16_t, trans_buf[256]);
  DECLARE_ALIGNED(32, int16_t, tmp_buf[128]);
  int32_t i;
  int16_t *ptmpbuf = &tmp_buf[0];
  int16_t *trans = &trans_buf[0];
  const int32_t const_arr[29 * 4] = {
    52707308,    52707308,    52707308,    52707308,    -1072430300,
    -1072430300, -1072430300, -1072430300, 795618043,   795618043,
    795618043,   795618043,   -721080468,  -721080468,  -721080468,
    -721080468,  459094491,   459094491,   459094491,   459094491,
    -970646691,  -970646691,  -970646691,  -970646691,  1010963856,
    1010963856,  1010963856,  1010963856,  -361743294,  -361743294,
    -361743294,  -361743294,  209469125,   209469125,   209469125,
    209469125,   -1053094788, -1053094788, -1053094788, -1053094788,
    1053160324,  1053160324,  1053160324,  1053160324,  639644520,
    639644520,   639644520,   639644520,   -862444000,  -862444000,
    -862444000,  -862444000,  1062144356,  1062144356,  1062144356,
    1062144356,  -157532337,  -157532337,  -157532337,  -157532337,
    260914709,   260914709,   260914709,   260914709,   -1041559667,
    -1041559667, -1041559667, -1041559667, 920985831,   920985831,
    920985831,   920985831,   -551995675,  -551995675,  -551995675,
    -551995675,  596522295,   596522295,   596522295,   596522295,
    892853362,   892853362,   892853362,   892853362,   -892787826,
    -892787826,  -892787826,  -892787826,  410925857,   410925857,
    410925857,   410925857,   -992012162,  -992012162,  -992012162,
    -992012162,  992077698,   992077698,   992077698,   992077698,
    759246145,   759246145,   759246145,   759246145,   -759180609,
    -759180609,  -759180609,  -759180609,  -759222975,  -759222975,
    -759222975,  -759222975,  759288511,   759288511,   759288511,
    759288511
  };

  switch (tx_type) {
    case DCT_DCT:
      /* column transform */
      for (i = 0; i < 2; ++i) {
        fdct8x16_1d_column(input + 8 * i, tmp + 8 * i, stride);
      }

      /* row transform */
      for (i = 0; i < 2; ++i) {
        fdct16x8_1d_row(tmp + (128 * i), output + (128 * i));
      }
      break;
    case ADST_DCT:
      /* column transform */
      for (i = 0; i < 2; ++i) {
        fadst16_cols_step1_msa(input + (i << 3), stride, const_arr, ptmpbuf);
        fadst16_cols_step2_msa(ptmpbuf, const_arr, tmp + (i << 3));
      }

      /* row transform */
      for (i = 0; i < 2; ++i) {
        postproc_fdct16x8_1d_row(tmp + (128 * i), output + (128 * i));
      }
      break;
    case DCT_ADST:
      /* column transform */
      for (i = 0; i < 2; ++i) {
        fdct8x16_1d_column(input + 8 * i, tmp + 8 * i, stride);
      }

      fadst16_transpose_postproc_msa(tmp, trans);

      /* row transform */
      for (i = 0; i < 2; ++i) {
        fadst16_rows_step1_msa(trans + (i << 7), const_arr, ptmpbuf);
        fadst16_rows_step2_msa(ptmpbuf, const_arr, tmp + (i << 7));
      }

      fadst16_transpose_msa(tmp, output);
      break;
    case ADST_ADST:
      /* column transform */
      for (i = 0; i < 2; ++i) {
        fadst16_cols_step1_msa(input + (i << 3), stride, const_arr, ptmpbuf);
        fadst16_cols_step2_msa(ptmpbuf, const_arr, tmp + (i << 3));
      }

      fadst16_transpose_postproc_msa(tmp, trans);

      /* row transform */
      for (i = 0; i < 2; ++i) {
        fadst16_rows_step1_msa(trans + (i << 7), const_arr, ptmpbuf);
        fadst16_rows_step2_msa(ptmpbuf, const_arr, tmp + (i << 7));
      }

      fadst16_transpose_msa(tmp, output);
      break;
    default: assert(0); break;
  }
}