Esempio n. 1
0
void test_vqdmulhQ_ns16 (void)
{
  int16x8_t out_int16x8_t;
  int16x8_t arg0_int16x8_t;
  int16_t arg1_int16_t;

  out_int16x8_t = vqdmulhq_n_s16 (arg0_int16x8_t, arg1_int16_t);
}
Esempio n. 2
0
void vp8_short_idct4x4llm_neon(int16_t *input, unsigned char *pred_ptr,
                               int pred_stride, unsigned char *dst_ptr,
                               int dst_stride) {
  int i;
  uint32x2_t d6u32 = vdup_n_u32(0);
  uint8x8_t d1u8;
  int16x4_t d2, d3, d4, d5, d10, d11, d12, d13;
  uint16x8_t q1u16;
  int16x8_t q1s16, q2s16, q3s16, q4s16;
  int32x2x2_t v2tmp0, v2tmp1;
  int16x4x2_t v2tmp2, v2tmp3;

  d2 = vld1_s16(input);
  d3 = vld1_s16(input + 4);
  d4 = vld1_s16(input + 8);
  d5 = vld1_s16(input + 12);

  // 1st for loop
  q1s16 = vcombine_s16(d2, d4);  // Swap d3 d4 here
  q2s16 = vcombine_s16(d3, d5);

  q3s16 = vqdmulhq_n_s16(q2s16, sinpi8sqrt2);
  q4s16 = vqdmulhq_n_s16(q2s16, cospi8sqrt2minus1);

  d12 = vqadd_s16(vget_low_s16(q1s16), vget_high_s16(q1s16));  // a1
  d13 = vqsub_s16(vget_low_s16(q1s16), vget_high_s16(q1s16));  // b1

  q3s16 = vshrq_n_s16(q3s16, 1);
  q4s16 = vshrq_n_s16(q4s16, 1);

  q3s16 = vqaddq_s16(q3s16, q2s16);
  q4s16 = vqaddq_s16(q4s16, q2s16);

  d10 = vqsub_s16(vget_low_s16(q3s16), vget_high_s16(q4s16));  // c1
  d11 = vqadd_s16(vget_high_s16(q3s16), vget_low_s16(q4s16));  // d1

  d2 = vqadd_s16(d12, d11);
  d3 = vqadd_s16(d13, d10);
  d4 = vqsub_s16(d13, d10);
  d5 = vqsub_s16(d12, d11);

  v2tmp0 = vtrn_s32(vreinterpret_s32_s16(d2), vreinterpret_s32_s16(d4));
  v2tmp1 = vtrn_s32(vreinterpret_s32_s16(d3), vreinterpret_s32_s16(d5));
  v2tmp2 = vtrn_s16(vreinterpret_s16_s32(v2tmp0.val[0]),
                    vreinterpret_s16_s32(v2tmp1.val[0]));
  v2tmp3 = vtrn_s16(vreinterpret_s16_s32(v2tmp0.val[1]),
                    vreinterpret_s16_s32(v2tmp1.val[1]));

  // 2nd for loop
  q1s16 = vcombine_s16(v2tmp2.val[0], v2tmp3.val[0]);
  q2s16 = vcombine_s16(v2tmp2.val[1], v2tmp3.val[1]);

  q3s16 = vqdmulhq_n_s16(q2s16, sinpi8sqrt2);
  q4s16 = vqdmulhq_n_s16(q2s16, cospi8sqrt2minus1);

  d12 = vqadd_s16(vget_low_s16(q1s16), vget_high_s16(q1s16));  // a1
  d13 = vqsub_s16(vget_low_s16(q1s16), vget_high_s16(q1s16));  // b1

  q3s16 = vshrq_n_s16(q3s16, 1);
  q4s16 = vshrq_n_s16(q4s16, 1);

  q3s16 = vqaddq_s16(q3s16, q2s16);
  q4s16 = vqaddq_s16(q4s16, q2s16);

  d10 = vqsub_s16(vget_low_s16(q3s16), vget_high_s16(q4s16));  // c1
  d11 = vqadd_s16(vget_high_s16(q3s16), vget_low_s16(q4s16));  // d1

  d2 = vqadd_s16(d12, d11);
  d3 = vqadd_s16(d13, d10);
  d4 = vqsub_s16(d13, d10);
  d5 = vqsub_s16(d12, d11);

  d2 = vrshr_n_s16(d2, 3);
  d3 = vrshr_n_s16(d3, 3);
  d4 = vrshr_n_s16(d4, 3);
  d5 = vrshr_n_s16(d5, 3);

  v2tmp0 = vtrn_s32(vreinterpret_s32_s16(d2), vreinterpret_s32_s16(d4));
  v2tmp1 = vtrn_s32(vreinterpret_s32_s16(d3), vreinterpret_s32_s16(d5));
  v2tmp2 = vtrn_s16(vreinterpret_s16_s32(v2tmp0.val[0]),
                    vreinterpret_s16_s32(v2tmp1.val[0]));
  v2tmp3 = vtrn_s16(vreinterpret_s16_s32(v2tmp0.val[1]),
                    vreinterpret_s16_s32(v2tmp1.val[1]));

  q1s16 = vcombine_s16(v2tmp2.val[0], v2tmp2.val[1]);
  q2s16 = vcombine_s16(v2tmp3.val[0], v2tmp3.val[1]);

  // dc_only_idct_add
  for (i = 0; i < 2; i++, q1s16 = q2s16) {
    d6u32 = vld1_lane_u32((const uint32_t *)pred_ptr, d6u32, 0);
    pred_ptr += pred_stride;
    d6u32 = vld1_lane_u32((const uint32_t *)pred_ptr, d6u32, 1);
    pred_ptr += pred_stride;

    q1u16 = vaddw_u8(vreinterpretq_u16_s16(q1s16), vreinterpret_u8_u32(d6u32));
    d1u8 = vqmovun_s16(vreinterpretq_s16_u16(q1u16));

    vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d1u8), 0);
    dst_ptr += dst_stride;
    vst1_lane_u32((uint32_t *)dst_ptr, vreinterpret_u32_u8(d1u8), 1);
    dst_ptr += dst_stride;
  }
  return;
}
Esempio n. 3
0
void idct_dequant_full_2x_neon(
        int16_t *q,
        int16_t *dq,
        unsigned char *dst,
        int stride) {
    unsigned char *dst0, *dst1;
    int32x2_t d28, d29, d30, d31;
    int16x8_t q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
    int16x8_t qEmpty = vdupq_n_s16(0);
    int32x4x2_t q2tmp0, q2tmp1;
    int16x8x2_t q2tmp2, q2tmp3;
    int16x4_t dLow0, dLow1, dHigh0, dHigh1;

    d28 = d29 = d30 = d31 = vdup_n_s32(0);

    // load dq
    q0 = vld1q_s16(dq);
    dq += 8;
    q1 = vld1q_s16(dq);

    // load q
    q2 = vld1q_s16(q);
    vst1q_s16(q, qEmpty);
    q += 8;
    q3 = vld1q_s16(q);
    vst1q_s16(q, qEmpty);
    q += 8;
    q4 = vld1q_s16(q);
    vst1q_s16(q, qEmpty);
    q += 8;
    q5 = vld1q_s16(q);
    vst1q_s16(q, qEmpty);

    // load src from dst
    dst0 = dst;
    dst1 = dst + 4;
    d28 = vld1_lane_s32((const int32_t *)dst0, d28, 0);
    dst0 += stride;
    d28 = vld1_lane_s32((const int32_t *)dst1, d28, 1);
    dst1 += stride;
    d29 = vld1_lane_s32((const int32_t *)dst0, d29, 0);
    dst0 += stride;
    d29 = vld1_lane_s32((const int32_t *)dst1, d29, 1);
    dst1 += stride;

    d30 = vld1_lane_s32((const int32_t *)dst0, d30, 0);
    dst0 += stride;
    d30 = vld1_lane_s32((const int32_t *)dst1, d30, 1);
    dst1 += stride;
    d31 = vld1_lane_s32((const int32_t *)dst0, d31, 0);
    d31 = vld1_lane_s32((const int32_t *)dst1, d31, 1);

    q2 = vmulq_s16(q2, q0);
    q3 = vmulq_s16(q3, q1);
    q4 = vmulq_s16(q4, q0);
    q5 = vmulq_s16(q5, q1);

    // vswp
    dLow0 = vget_low_s16(q2);
    dHigh0 = vget_high_s16(q2);
    dLow1 = vget_low_s16(q4);
    dHigh1 = vget_high_s16(q4);
    q2 = vcombine_s16(dLow0, dLow1);
    q4 = vcombine_s16(dHigh0, dHigh1);

    dLow0 = vget_low_s16(q3);
    dHigh0 = vget_high_s16(q3);
    dLow1 = vget_low_s16(q5);
    dHigh1 = vget_high_s16(q5);
    q3 = vcombine_s16(dLow0, dLow1);
    q5 = vcombine_s16(dHigh0, dHigh1);

    q6 = vqdmulhq_n_s16(q4, sinpi8sqrt2);
    q7 = vqdmulhq_n_s16(q5, sinpi8sqrt2);
    q8 = vqdmulhq_n_s16(q4, cospi8sqrt2minus1);
    q9 = vqdmulhq_n_s16(q5, cospi8sqrt2minus1);

    q10 = vqaddq_s16(q2, q3);
    q11 = vqsubq_s16(q2, q3);

    q8 = vshrq_n_s16(q8, 1);
    q9 = vshrq_n_s16(q9, 1);

    q4 = vqaddq_s16(q4, q8);
    q5 = vqaddq_s16(q5, q9);

    q2 = vqsubq_s16(q6, q5);
    q3 = vqaddq_s16(q7, q4);

    q4 = vqaddq_s16(q10, q3);
    q5 = vqaddq_s16(q11, q2);
    q6 = vqsubq_s16(q11, q2);
    q7 = vqsubq_s16(q10, q3);

    q2tmp0 = vtrnq_s32(vreinterpretq_s32_s16(q4), vreinterpretq_s32_s16(q6));
    q2tmp1 = vtrnq_s32(vreinterpretq_s32_s16(q5), vreinterpretq_s32_s16(q7));
    q2tmp2 = vtrnq_s16(vreinterpretq_s16_s32(q2tmp0.val[0]),
                       vreinterpretq_s16_s32(q2tmp1.val[0]));
    q2tmp3 = vtrnq_s16(vreinterpretq_s16_s32(q2tmp0.val[1]),
                       vreinterpretq_s16_s32(q2tmp1.val[1]));

    // loop 2
    q8  = vqdmulhq_n_s16(q2tmp2.val[1], sinpi8sqrt2);
    q9  = vqdmulhq_n_s16(q2tmp3.val[1], sinpi8sqrt2);
    q10 = vqdmulhq_n_s16(q2tmp2.val[1], cospi8sqrt2minus1);
    q11 = vqdmulhq_n_s16(q2tmp3.val[1], cospi8sqrt2minus1);

    q2 = vqaddq_s16(q2tmp2.val[0], q2tmp3.val[0]);
    q3 = vqsubq_s16(q2tmp2.val[0], q2tmp3.val[0]);

    q10 = vshrq_n_s16(q10, 1);
    q11 = vshrq_n_s16(q11, 1);

    q10 = vqaddq_s16(q2tmp2.val[1], q10);
    q11 = vqaddq_s16(q2tmp3.val[1], q11);

    q8 = vqsubq_s16(q8, q11);
    q9 = vqaddq_s16(q9, q10);

    q4 = vqaddq_s16(q2, q9);
    q5 = vqaddq_s16(q3, q8);
    q6 = vqsubq_s16(q3, q8);
    q7 = vqsubq_s16(q2, q9);

    q4 = vrshrq_n_s16(q4, 3);
    q5 = vrshrq_n_s16(q5, 3);
    q6 = vrshrq_n_s16(q6, 3);
    q7 = vrshrq_n_s16(q7, 3);

    q2tmp0 = vtrnq_s32(vreinterpretq_s32_s16(q4), vreinterpretq_s32_s16(q6));
    q2tmp1 = vtrnq_s32(vreinterpretq_s32_s16(q5), vreinterpretq_s32_s16(q7));
    q2tmp2 = vtrnq_s16(vreinterpretq_s16_s32(q2tmp0.val[0]),
                       vreinterpretq_s16_s32(q2tmp1.val[0]));
    q2tmp3 = vtrnq_s16(vreinterpretq_s16_s32(q2tmp0.val[1]),
                       vreinterpretq_s16_s32(q2tmp1.val[1]));

    q4 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q2tmp2.val[0]),
                                          vreinterpret_u8_s32(d28)));
    q5 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q2tmp2.val[1]),
                                          vreinterpret_u8_s32(d29)));
    q6 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q2tmp3.val[0]),
                                          vreinterpret_u8_s32(d30)));
    q7 = vreinterpretq_s16_u16(vaddw_u8(vreinterpretq_u16_s16(q2tmp3.val[1]),
                                          vreinterpret_u8_s32(d31)));

    d28 = vreinterpret_s32_u8(vqmovun_s16(q4));
    d29 = vreinterpret_s32_u8(vqmovun_s16(q5));
    d30 = vreinterpret_s32_u8(vqmovun_s16(q6));
    d31 = vreinterpret_s32_u8(vqmovun_s16(q7));

    dst0 = dst;
    dst1 = dst + 4;
    vst1_lane_s32((int32_t *)dst0, d28, 0);
    dst0 += stride;
    vst1_lane_s32((int32_t *)dst1, d28, 1);
    dst1 += stride;
    vst1_lane_s32((int32_t *)dst0, d29, 0);
    dst0 += stride;
    vst1_lane_s32((int32_t *)dst1, d29, 1);
    dst1 += stride;

    vst1_lane_s32((int32_t *)dst0, d30, 0);
    dst0 += stride;
    vst1_lane_s32((int32_t *)dst1, d30, 1);
    dst1 += stride;
    vst1_lane_s32((int32_t *)dst0, d31, 0);
    vst1_lane_s32((int32_t *)dst1, d31, 1);
    return;
}