ref: 343acaa8f2233acfe427a8e3557efa7bae092d77
dir: /vp9/common/mips/dspr2/vp9_intrapred4_dspr2.c/
/*
* Copyright (c) 2013 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 <stdlib.h>
#include "./vp9_rtcd.h"
#include "vp9/common/vp9_common.h"
#include "vp9/common/mips/dspr2/vp9_common_dspr2.h"
#if HAVE_DSPR2
void vp9_h_predictor_4x4_dspr2(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
int32_t tmp1, tmp2, tmp3, tmp4;
__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 vp9_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)
);
}
void vp9_tm_predictor_4x4_dspr2(uint8_t *dst, ptrdiff_t stride,
const uint8_t *above, const uint8_t *left) {
int32_t abovel, abover;
int32_t left0, left1, left2, left3;
int32_t res0, res1;
int32_t resl;
int32_t resr;
int32_t top_left;
uint8_t *cm = vp9_ff_cropTbl;
__asm__ __volatile__ (
"ulw %[resl], (%[above]) \n\t"
"lbu %[left0], (%[left]) \n\t"
"lbu %[left1], 1(%[left]) \n\t"
"lbu %[left2], 2(%[left]) \n\t"
"lbu %[left3], 3(%[left]) \n\t"
"lbu %[top_left], -1(%[above]) \n\t"
"preceu.ph.qbl %[abovel], %[resl] \n\t"
"preceu.ph.qbr %[abover], %[resl] \n\t"
"replv.ph %[left0], %[left0] \n\t"
"replv.ph %[left1], %[left1] \n\t"
"replv.ph %[left2], %[left2] \n\t"
"replv.ph %[left3], %[left3] \n\t"
"replv.ph %[top_left], %[top_left] \n\t"
"addu.ph %[resl], %[abovel], %[left0] \n\t"
"subu.ph %[resl], %[resl], %[top_left] \n\t"
"addu.ph %[resr], %[abover], %[left0] \n\t"
"subu.ph %[resr], %[resr], %[top_left] \n\t"
"sll %[res0], %[resr], 16 \n\t"
"sra %[res0], %[res0], 16 \n\t"
"lbux %[res0], %[res0](%[cm]) \n\t"
"sra %[res1], %[resr], 16 \n\t"
"lbux %[res1], %[res1](%[cm]) \n\t"
"sb %[res0], (%[dst]) \n\t"
"sll %[res0], %[resl], 16 \n\t"
"sra %[res0], %[res0], 16 \n\t"
"lbux %[res0], %[res0](%[cm]) \n\t"
"sb %[res1], 1(%[dst]) \n\t"
"sra %[res1], %[resl], 16 \n\t"
"lbux %[res1], %[res1](%[cm]) \n\t"
"addu.ph %[resl], %[abovel], %[left1] \n\t"
"subu.ph %[resl], %[resl], %[top_left] \n\t"
"addu.ph %[resr], %[abover], %[left1] \n\t"
"subu.ph %[resr], %[resr], %[top_left] \n\t"
"sb %[res0], 2(%[dst]) \n\t"
"sb %[res1], 3(%[dst]) \n\t"
"add %[dst], %[dst], %[stride] \n\t"
"sll %[res0], %[resr], 16 \n\t"
"sra %[res0], %[res0], 16 \n\t"
"lbux %[res0], %[res0](%[cm]) \n\t"
"sra %[res1], %[resr], 16 \n\t"
"lbux %[res1], %[res1](%[cm]) \n\t"
"sb %[res0], (%[dst]) \n\t"
"sll %[res0], %[resl], 16 \n\t"
"sra %[res0], %[res0], 16 \n\t"
"lbux %[res0], %[res0](%[cm]) \n\t"
"sb %[res1], 1(%[dst]) \n\t"
"sra %[res1], %[resl], 16 \n\t"
"lbux %[res1], %[res1](%[cm]) \n\t"
"addu.ph %[resl], %[abovel], %[left2] \n\t"
"subu.ph %[resl], %[resl], %[top_left] \n\t"
"addu.ph %[resr], %[abover], %[left2] \n\t"
"subu.ph %[resr], %[resr], %[top_left] \n\t"
"sb %[res0], 2(%[dst]) \n\t"
"sb %[res1], 3(%[dst]) \n\t"
"add %[dst], %[dst], %[stride] \n\t"
"sll %[res0], %[resr], 16 \n\t"
"sra %[res0], %[res0], 16 \n\t"
"lbux %[res0], %[res0](%[cm]) \n\t"
"sra %[res1], %[resr], 16 \n\t"
"lbux %[res1], %[res1](%[cm]) \n\t"
"sb %[res0], (%[dst]) \n\t"
"sll %[res0], %[resl], 16 \n\t"
"sra %[res0], %[res0], 16 \n\t"
"lbux %[res0], %[res0](%[cm]) \n\t"
"sb %[res1], 1(%[dst]) \n\t"
"sra %[res1], %[resl], 16 \n\t"
"lbux %[res1], %[res1](%[cm]) \n\t"
"addu.ph %[resl], %[abovel], %[left3] \n\t"
"subu.ph %[resl], %[resl], %[top_left] \n\t"
"addu.ph %[resr], %[abover], %[left3] \n\t"
"subu.ph %[resr], %[resr], %[top_left] \n\t"
"sb %[res0], 2(%[dst]) \n\t"
"sb %[res1], 3(%[dst]) \n\t"
"add %[dst], %[dst], %[stride] \n\t"
"sll %[res0], %[resr], 16 \n\t"
"sra %[res0], %[res0], 16 \n\t"
"lbux %[res0], %[res0](%[cm]) \n\t"
"sra %[res1], %[resr], 16 \n\t"
"lbux %[res1], %[res1](%[cm]) \n\t"
"sb %[res0], (%[dst]) \n\t"
"sll %[res0], %[resl], 16 \n\t"
"sra %[res0], %[res0], 16 \n\t"
"lbux %[res0], %[res0](%[cm]) \n\t"
"sb %[res1], 1(%[dst]) \n\t"
"sra %[res1], %[resl], 16 \n\t"
"lbux %[res1], %[res1](%[cm]) \n\t"
"sb %[res0], 2(%[dst]) \n\t"
"sb %[res1], 3(%[dst]) \n\t"
: [abovel] "=&r" (abovel), [abover] "=&r" (abover),
[left0] "=&r" (left0), [left1] "=&r" (left1), [left2] "=&r" (left2),
[res0] "=&r" (res0), [res1] "=&r" (res1), [left3] "=&r" (left3),
[resl] "=&r" (resl), [resr] "=&r" (resr), [top_left] "=&r" (top_left)
: [above] "r" (above), [left] "r" (left),
[dst] "r" (dst), [stride] "r" (stride), [cm] "r" (cm)
);
}
#endif // #if HAVE_DSPR2