Esempi in C++ (Cpp) per VP9_FDCT4

Esempio n. 1

File: fwd_txfm_msa.c Progetto: MIPS/external-libvpx

void vpx_fdct4x4_msa(const int16_t *input, int16_t *output,
                     int32_t src_stride) {
  v8i16 in0, in1, in2, in3;

  LD_SH4(input, src_stride, in0, in1, in2, in3);

  /* fdct4 pre-process */
  {
    v8i16 vec, mask;
    v16i8 zero = { 0 };
    v16i8 one = __msa_ldi_b(1);

    mask = (v8i16)__msa_sldi_b(zero, one, 15);
    SLLI_4V(in0, in1, in2, in3, 4);
    vec = __msa_ceqi_h(in0, 0);
    vec = vec ^ 255;
    vec = mask & vec;
    in0 += vec;
  }

  VP9_FDCT4(in0, in1, in2, in3, in0, in1, in2, in3);
  TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3);
  VP9_FDCT4(in0, in1, in2, in3, in0, in1, in2, in3);
  TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3);
  ADD4(in0, 1, in1, 1, in2, 1, in3, 1, in0, in1, in2, in3);
  SRA_4V(in0, in1, in2, in3, 2);
  PCKEV_D2_SH(in1, in0, in3, in2, in0, in2);
  ST_SH2(in0, in2, output, 8);
}

Esempio n. 2

File: vp9_fdct4x4_msa.c Progetto: krunalsoni01/src

void vp9_fht4x4_msa(const int16_t *input, int16_t *output, int32_t stride,
                    int32_t tx_type) {
  v8i16 in0, in1, in2, in3;

  LD_SH4(input, stride, in0, in1, in2, in3);

  /* fdct4 pre-process */
  {
    v8i16 temp, mask;
    v16i8 zero = { 0 };
    v16i8 one = __msa_ldi_b(1);

    mask = (v8i16)__msa_sldi_b(zero, one, 15);
    SLLI_4V(in0, in1, in2, in3, 4);
    temp = __msa_ceqi_h(in0, 0);
    temp = (v8i16)__msa_xori_b((v16u8)temp, 255);
    temp = mask & temp;
    in0 += temp;
  }

  switch (tx_type) {
    case DCT_DCT:
      VP9_FDCT4(in0, in1, in2, in3, in0, in1, in2, in3);
      TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3);
      VP9_FDCT4(in0, in1, in2, in3, in0, in1, in2, in3);
      break;
    case ADST_DCT:
      VP9_FADST4(in0, in1, in2, in3, in0, in1, in2, in3);
      TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3);
      VP9_FDCT4(in0, in1, in2, in3, in0, in1, in2, in3);
      break;
    case DCT_ADST:
      VP9_FDCT4(in0, in1, in2, in3, in0, in1, in2, in3);
      TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3);
      VP9_FADST4(in0, in1, in2, in3, in0, in1, in2, in3);
      break;
    case ADST_ADST:
      VP9_FADST4(in0, in1, in2, in3, in0, in1, in2, in3);
      TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3);
      VP9_FADST4(in0, in1, in2, in3, in0, in1, in2, in3);
      break;
    default:
      assert(0);
      break;
  }

  TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3);
  ADD4(in0, 1, in1, 1, in2, 1, in3, 1, in0, in1, in2, in3);
  SRA_4V(in0, in1, in2, in3, 2);
  PCKEV_D2_SH(in1, in0, in3, in2, in0, in2);
  ST_SH2(in0, in2, output, 8);
}