Quelle  intrapred16_dspr2.c   Sprache: C

/*
 *  Copyright (c) 2015 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "vpx_dsp/mips/common_dspr2.h"

#if HAVE_DSPR2
void vpx_h_predictor_16x16_dspr2(uint8_t *dst, ptrdiff_t stride,
                                 const uint8_t *above, const uint8_t *left) {
  int32_t tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8;
  int32_t tmp9, tmp10, tmp11, tmp12, tmp13, tmp14, tmp15, tmp16;
  (void)above;

  __asm__ __volatile__(
      "lb %[tmp1], (%[left]) \n\t"
      "lb %[tmp2], 1(%[left]) \n\t"
      "lb %[tmp3], 2(%[left]) \n\t"
      "lb %[tmp4], 3(%[left]) \n\t"
      "lb %[tmp5], 4(%[left]) \n\t"
      "lb %[tmp6], 5(%[left]) \n\t"
      "lb %[tmp7], 6(%[left]) \n\t"
      "lb %[tmp8], 7(%[left]) \n\t"
      "lb %[tmp9], 8(%[left]) \n\t"
      "lb %[tmp10], 9(%[left]) \n\t"
      "lb %[tmp11], 10(%[left]) \n\t"
      "lb %[tmp12], 11(%[left]) \n\t"
      "lb %[tmp13], 12(%[left]) \n\t"
      "lb %[tmp14], 13(%[left]) \n\t"
      "lb %[tmp15], 14(%[left]) \n\t"
      "lb %[tmp16], 15(%[left]) \n\t"

      "replv.qb %[tmp1], %[tmp1] \n\t"
      "replv.qb %[tmp2], %[tmp2] \n\t"
      "replv.qb %[tmp3], %[tmp3] \n\t"
      "replv.qb %[tmp4], %[tmp4] \n\t"
      "replv.qb %[tmp5], %[tmp5] \n\t"
      "replv.qb %[tmp6], %[tmp6] \n\t"
      "replv.qb %[tmp7], %[tmp7] \n\t"
      "replv.qb %[tmp8], %[tmp8] \n\t"
      "replv.qb %[tmp9], %[tmp9] \n\t"
      "replv.qb %[tmp10], %[tmp10] \n\t"
      "replv.qb %[tmp11], %[tmp11] \n\t"
      "replv.qb %[tmp12], %[tmp12] \n\t"
      "replv.qb %[tmp13], %[tmp13] \n\t"
      "replv.qb %[tmp14], %[tmp14] \n\t"
      "replv.qb %[tmp15], %[tmp15] \n\t"
      "replv.qb %[tmp16], %[tmp16] \n\t"

      "sw %[tmp1], (%[dst]) \n\t"
      "sw %[tmp1], 4(%[dst]) \n\t"
      "sw %[tmp1], 8(%[dst]) \n\t"
      "sw %[tmp1], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp2], (%[dst]) \n\t"
      "sw %[tmp2], 4(%[dst]) \n\t"
      "sw %[tmp2], 8(%[dst]) \n\t"
      "sw %[tmp2], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp3], (%[dst]) \n\t"
      "sw %[tmp3], 4(%[dst]) \n\t"
      "sw %[tmp3], 8(%[dst]) \n\t"
      "sw %[tmp3], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp4], (%[dst]) \n\t"
      "sw %[tmp4], 4(%[dst]) \n\t"
      "sw %[tmp4], 8(%[dst]) \n\t"
      "sw %[tmp4], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp5], (%[dst]) \n\t"
      "sw %[tmp5], 4(%[dst]) \n\t"
      "sw %[tmp5], 8(%[dst]) \n\t"
      "sw %[tmp5], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp6], (%[dst]) \n\t"
      "sw %[tmp6], 4(%[dst]) \n\t"
      "sw %[tmp6], 8(%[dst]) \n\t"
      "sw %[tmp6], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp7], (%[dst]) \n\t"
      "sw %[tmp7], 4(%[dst]) \n\t"
      "sw %[tmp7], 8(%[dst]) \n\t"
      "sw %[tmp7], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp8], (%[dst]) \n\t"
      "sw %[tmp8], 4(%[dst]) \n\t"
      "sw %[tmp8], 8(%[dst]) \n\t"
      "sw %[tmp8], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp9], (%[dst]) \n\t"
      "sw %[tmp9], 4(%[dst]) \n\t"
      "sw %[tmp9], 8(%[dst]) \n\t"
      "sw %[tmp9], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp10], (%[dst]) \n\t"
      "sw %[tmp10], 4(%[dst]) \n\t"
      "sw %[tmp10], 8(%[dst]) \n\t"
      "sw %[tmp10], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp11], (%[dst]) \n\t"
      "sw %[tmp11], 4(%[dst]) \n\t"
      "sw %[tmp11], 8(%[dst]) \n\t"
      "sw %[tmp11], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp12], (%[dst]) \n\t"
      "sw %[tmp12], 4(%[dst]) \n\t"
      "sw %[tmp12], 8(%[dst]) \n\t"
      "sw %[tmp12], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp13], (%[dst]) \n\t"
      "sw %[tmp13], 4(%[dst]) \n\t"
      "sw %[tmp13], 8(%[dst]) \n\t"
      "sw %[tmp13], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp14], (%[dst]) \n\t"
      "sw %[tmp14], 4(%[dst]) \n\t"
      "sw %[tmp14], 8(%[dst]) \n\t"
      "sw %[tmp14], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp15], (%[dst]) \n\t"
      "sw %[tmp15], 4(%[dst]) \n\t"
      "sw %[tmp15], 8(%[dst]) \n\t"
      "sw %[tmp15], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[tmp16], (%[dst]) \n\t"
      "sw %[tmp16], 4(%[dst]) \n\t"
      "sw %[tmp16], 8(%[dst]) \n\t"
      "sw %[tmp16], 12(%[dst]) \n\t"

      : [tmp1] "=&r"(tmp1), [tmp2] "=&r"(tmp2), [tmp3] "=&r"(tmp3),
        [tmp4] "=&r"(tmp4), [tmp5] "=&r"(tmp5), [tmp7] "=&r"(tmp7),
        [tmp6] "=&r"(tmp6), [tmp8] "=&r"(tmp8), [tmp9] "=&r"(tmp9),
        [tmp10] "=&r"(tmp10), [tmp11] "=&r"(tmp11), [tmp12] "=&r"(tmp12),
        [tmp13] "=&r"(tmp13), [tmp14] "=&r"(tmp14), [tmp15] "=&r"(tmp15),
        [tmp16] "=&r"(tmp16)
      : [left] "r"(left), [dst] "r"(dst), [stride] "r"(stride));
}

void vpx_dc_predictor_16x16_dspr2(uint8_t *dst, ptrdiff_t stride,
                                  const uint8_t *above, const uint8_t *left) {
  int32_t expected_dc;
  int32_t average;
  int32_t tmp, above1, above_l1, above_r1, left1, left_r1, left_l1;
  int32_t above2, left2;

  __asm__ __volatile__(
      "lw %[above1], (%[above]) \n\t"
      "lw %[above2], 4(%[above]) \n\t"
      "lw %[left1], (%[left]) \n\t"
      "lw %[left2], 4(%[left]) \n\t"

      "preceu.ph.qbl %[above_l1], %[above1] \n\t"
      "preceu.ph.qbr %[above_r1], %[above1] \n\t"
      "preceu.ph.qbl %[left_l1], %[left1] \n\t"
      "preceu.ph.qbr %[left_r1], %[left1] \n\t"

      "addu.ph %[average], %[above_r1], %[above_l1] \n\t"
      "addu.ph %[average], %[average], %[left_l1] \n\t"
      "addu.ph %[average], %[average], %[left_r1] \n\t"

      "preceu.ph.qbl %[above_l1], %[above2] \n\t"
      "preceu.ph.qbr %[above_r1], %[above2] \n\t"
      "preceu.ph.qbl %[left_l1], %[left2] \n\t"
      "preceu.ph.qbr %[left_r1], %[left2] \n\t"

      "addu.ph %[average], %[average], %[above_l1] \n\t"
      "addu.ph %[average], %[average], %[above_r1] \n\t"
      "addu.ph %[average], %[average], %[left_l1] \n\t"
      "addu.ph %[average], %[average], %[left_r1] \n\t"

      "lw %[above1], 8(%[above]) \n\t"
      "lw %[above2], 12(%[above]) \n\t"
      "lw %[left1], 8(%[left]) \n\t"
      "lw %[left2], 12(%[left]) \n\t"

      "preceu.ph.qbl %[above_l1], %[above1] \n\t"
      "preceu.ph.qbr %[above_r1], %[above1] \n\t"
      "preceu.ph.qbl %[left_l1], %[left1] \n\t"
      "preceu.ph.qbr %[left_r1], %[left1] \n\t"

      "addu.ph %[average], %[average], %[above_l1] \n\t"
      "addu.ph %[average], %[average], %[above_r1] \n\t"
      "addu.ph %[average], %[average], %[left_l1] \n\t"
      "addu.ph %[average], %[average], %[left_r1] \n\t"

      "preceu.ph.qbl %[above_l1], %[above2] \n\t"
      "preceu.ph.qbr %[above_r1], %[above2] \n\t"
      "preceu.ph.qbl %[left_l1], %[left2] \n\t"
      "preceu.ph.qbr %[left_r1], %[left2] \n\t"

      "addu.ph %[average], %[average], %[above_l1] \n\t"
      "addu.ph %[average], %[average], %[above_r1] \n\t"
      "addu.ph %[average], %[average], %[left_l1] \n\t"
      "addu.ph %[average], %[average], %[left_r1] \n\t"

      "addiu %[average], %[average], 16 \n\t"
      "srl %[tmp], %[average], 16 \n\t"
      "addu.ph %[average], %[tmp], %[average] \n\t"
      "srl %[expected_dc], %[average], 5 \n\t"
      "replv.qb %[expected_dc], %[expected_dc] \n\t"

      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      "add %[dst], %[dst], %[stride] \n\t"
      "sw %[expected_dc], (%[dst]) \n\t"
      "sw %[expected_dc], 4(%[dst]) \n\t"
      "sw %[expected_dc], 8(%[dst]) \n\t"
      "sw %[expected_dc], 12(%[dst]) \n\t"

      : [left1] "=&r"(left1), [above1] "=&r"(above1), [left_l1] "=&r"(left_l1),
        [above_l1] "=&r"(above_l1), [left_r1] "=&r"(left_r1),
        [above_r1] "=&r"(above_r1), [above2] "=&r"(above2),
        [left2] "=&r"(left2), [average] "=&r"(average), [tmp] "=&r"(tmp),
        [expected_dc] "=&r"(expected_dc)
      : [above] "r"(above), [left] "r"(left), [dst] "r"(dst),
        [stride] "r"(stride));
}
#endif  // #if HAVE_DSPR2