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/*
* Copyright (c) 2016, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#include "aom_dsp/mips/common_dspr2.h"
#if HAVE_DSPR2
void aom_h_predictor_4x4_dspr2(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
int32_t tmp1, tmp2, tmp3, tmp4;
(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"
"replv.qb %[tmp1], %[tmp1] \n\t"
"replv.qb %[tmp2], %[tmp2] \n\t"
"replv.qb %[tmp3], %[tmp3] \n\t"
"replv.qb %[tmp4], %[tmp4] \n\t"
"sw %[tmp1], (%[dst]) \n\t"
"add %[dst], %[dst], %[stride] \n\t"
"sw %[tmp2], (%[dst]) \n\t"
"add %[dst], %[dst], %[stride] \n\t"
"sw %[tmp3], (%[dst]) \n\t"
"add %[dst], %[dst], %[stride] \n\t"
"sw %[tmp4], (%[dst]) \n\t"
: [tmp1] "=&r"(tmp1), [tmp2] "=&r"(tmp2), [tmp3] "=&r"(tmp3),
[tmp4] "=&r"(tmp4)
: [left] "r"(left), [dst] "r"(dst), [stride] "r"(stride));
}
void aom_dc_predictor_4x4_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, above_c, above_l, above_r, left_c, left_r, left_l;
__asm__ __volatile__(
"lw %[above_c], (%[above]) \n\t"
"lw %[left_c], (%[left]) \n\t"
"preceu.ph.qbl %[above_l], %[above_c] \n\t"
"preceu.ph.qbr %[above_r], %[above_c] \n\t"
"preceu.ph.qbl %[left_l], %[left_c] \n\t"
"preceu.ph.qbr %[left_r], %[left_c] \n\t"
"addu.ph %[average], %[above_r], %[above_l] \n\t"
"addu.ph %[average], %[average], %[left_l] \n\t"
"addu.ph %[average], %[average], %[left_r] \n\t"
"addiu %[average], %[average], 4 \n\t"
"srl %[tmp], %[average], 16 \n\t"
"addu.ph %[average], %[tmp], %[average] \n\t"
"srl %[expected_dc], %[average], 3 \n\t"
"replv.qb %[expected_dc], %[expected_dc] \n\t"
"sw %[expected_dc], (%[dst]) \n\t"
"add %[dst], %[dst], %[stride] \n\t"
"sw %[expected_dc], (%[dst]) \n\t"
"add %[dst], %[dst], %[stride] \n\t"
"sw %[expected_dc], (%[dst]) \n\t"
"add %[dst], %[dst], %[stride] \n\t"
"sw %[expected_dc], (%[dst]) \n\t"
: [above_c] "=&r"(above_c), [above_l] "=&r"(above_l),
[above_r] "=&r"(above_r), [left_c] "=&r"(left_c),
[left_l] "=&r"(left_l), [left_r] "=&r"(left_r),
[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
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