ref: 676c936ed3f832d9e3a70314b59c12d93e8b51d5
dir: /vpx_dsp/mips/subtract_mmi.c/
/*
* Copyright (c) 2017 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_rtcd.h"
#include "vpx/vpx_integer.h"
#include "vpx_ports/mem.h"
#include "vpx_ports/asmdefs_mmi.h"
void vpx_subtract_block_mmi(int rows, int cols, int16_t *diff,
ptrdiff_t diff_stride, const uint8_t *src,
ptrdiff_t src_stride, const uint8_t *pred,
ptrdiff_t pred_stride) {
double ftmp[13];
uint32_t tmp[1];
if (rows == cols) {
switch (rows) {
case 4:
__asm__ volatile(
"xor %[ftmp0], %[ftmp0], %[ftmp0] \n\t"
#if _MIPS_SIM == _ABIO32
"ulw %[tmp0], 0x00(%[src]) \n\t"
"mtc1 %[tmp0], %[ftmp1] \n\t"
"ulw %[tmp0], 0x00(%[pred]) \n\t"
"mtc1 %[tmp0], %[ftmp2] \n\t"
#else
"gslwlc1 %[ftmp1], 0x03(%[src]) \n\t"
"gslwrc1 %[ftmp1], 0x00(%[src]) \n\t"
"gslwlc1 %[ftmp2], 0x03(%[pred]) \n\t"
"gslwrc1 %[ftmp2], 0x00(%[pred]) \n\t"
#endif
MMI_ADDU(%[src], %[src], %[src_stride])
MMI_ADDU(%[pred], %[pred], %[pred_stride])
#if _MIPS_SIM == _ABIO32
"ulw %[tmp0], 0x00(%[src]) \n\t"
"mtc1 %[tmp0], %[ftmp3] \n\t"
"ulw %[tmp0], 0x00(%[pred]) \n\t"
"mtc1 %[tmp0], %[ftmp4] \n\t"
#else
"gslwlc1 %[ftmp3], 0x03(%[src]) \n\t"
"gslwrc1 %[ftmp3], 0x00(%[src]) \n\t"
"gslwlc1 %[ftmp4], 0x03(%[pred]) \n\t"
"gslwrc1 %[ftmp4], 0x00(%[pred]) \n\t"
#endif
MMI_ADDU(%[src], %[src], %[src_stride])
MMI_ADDU(%[pred], %[pred], %[pred_stride])
#if _MIPS_SIM == _ABIO32
"ulw %[tmp0], 0x00(%[src]) \n\t"
"mtc1 %[tmp0], %[ftmp5] \n\t"
"ulw %[tmp0], 0x00(%[pred]) \n\t"
"mtc1 %[tmp0], %[ftmp6] \n\t"
#else
"gslwlc1 %[ftmp5], 0x03(%[src]) \n\t"
"gslwrc1 %[ftmp5], 0x00(%[src]) \n\t"
"gslwlc1 %[ftmp6], 0x03(%[pred]) \n\t"
"gslwrc1 %[ftmp6], 0x00(%[pred]) \n\t"
#endif
MMI_ADDU(%[src], %[src], %[src_stride])
MMI_ADDU(%[pred], %[pred], %[pred_stride])
#if _MIPS_SIM == _ABIO32
"ulw %[tmp0], 0x00(%[src]) \n\t"
"mtc1 %[tmp0], %[ftmp7] \n\t"
"ulw %[tmp0], 0x00(%[pred]) \n\t"
"mtc1 %[tmp0], %[ftmp8] \n\t"
#else
"gslwlc1 %[ftmp7], 0x03(%[src]) \n\t"
"gslwrc1 %[ftmp7], 0x00(%[src]) \n\t"
"gslwlc1 %[ftmp8], 0x03(%[pred]) \n\t"
"gslwrc1 %[ftmp8], 0x00(%[pred]) \n\t"
#endif
"punpcklbh %[ftmp9], %[ftmp1], %[ftmp0] \n\t"
"punpcklbh %[ftmp10], %[ftmp2], %[ftmp0] \n\t"
"psubh %[ftmp11], %[ftmp9], %[ftmp10] \n\t"
"gssdlc1 %[ftmp11], 0x07(%[diff]) \n\t"
"gssdrc1 %[ftmp11], 0x00(%[diff]) \n\t"
MMI_ADDU(%[diff], %[diff], %[diff_stride])
"punpcklbh %[ftmp9], %[ftmp3], %[ftmp0] \n\t"
"punpcklbh %[ftmp10], %[ftmp4], %[ftmp0] \n\t"
"psubh %[ftmp11], %[ftmp9], %[ftmp10] \n\t"
"gssdlc1 %[ftmp11], 0x07(%[diff]) \n\t"
"gssdrc1 %[ftmp11], 0x00(%[diff]) \n\t"
MMI_ADDU(%[diff], %[diff], %[diff_stride])
"punpcklbh %[ftmp9], %[ftmp5], %[ftmp0] \n\t"
"punpcklbh %[ftmp10], %[ftmp6], %[ftmp0] \n\t"
"psubh %[ftmp11], %[ftmp9], %[ftmp10] \n\t"
"gssdlc1 %[ftmp11], 0x07(%[diff]) \n\t"
"gssdrc1 %[ftmp11], 0x00(%[diff]) \n\t"
MMI_ADDU(%[diff], %[diff], %[diff_stride])
"punpcklbh %[ftmp9], %[ftmp7], %[ftmp0] \n\t"
"punpcklbh %[ftmp10], %[ftmp8], %[ftmp0] \n\t"
"psubh %[ftmp11], %[ftmp9], %[ftmp10] \n\t"
"gssdlc1 %[ftmp11], 0x07(%[diff]) \n\t"
"gssdrc1 %[ftmp11], 0x00(%[diff]) \n\t"
: [ftmp0] "=&f"(ftmp[0]), [ftmp1] "=&f"(ftmp[1]),
[ftmp2] "=&f"(ftmp[2]), [ftmp3] "=&f"(ftmp[3]),
[ftmp4] "=&f"(ftmp[4]), [ftmp5] "=&f"(ftmp[5]),
[ftmp6] "=&f"(ftmp[6]), [ftmp7] "=&f"(ftmp[7]),
[ftmp8] "=&f"(ftmp[8]), [ftmp9] "=&f"(ftmp[9]),
[ftmp10] "=&f"(ftmp[10]), [ftmp11] "=&f"(ftmp[11]),
#if _MIPS_SIM == _ABIO32
[tmp0] "=&r"(tmp[0]),
#endif
[src] "+&r"(src), [pred] "+&r"(pred), [diff] "+&r"(diff)
: [src_stride] "r"((mips_reg)src_stride),
[pred_stride] "r"((mips_reg)pred_stride),
[diff_stride] "r"((mips_reg)(diff_stride * 2))
: "memory");
break;
case 8:
__asm__ volatile(
"xor %[ftmp0], %[ftmp0], %[ftmp0] \n\t"
"li %[tmp0], 0x02 \n\t"
"1: \n\t"
"gsldlc1 %[ftmp1], 0x07(%[src]) \n\t"
"gsldrc1 %[ftmp1], 0x00(%[src]) \n\t"
"gsldlc1 %[ftmp2], 0x07(%[pred]) \n\t"
"gsldrc1 %[ftmp2], 0x00(%[pred]) \n\t"
MMI_ADDU(%[src], %[src], %[src_stride])
MMI_ADDU(%[pred], %[pred], %[pred_stride])
"gsldlc1 %[ftmp3], 0x07(%[src]) \n\t"
"gsldrc1 %[ftmp3], 0x00(%[src]) \n\t"
"gsldlc1 %[ftmp4], 0x07(%[pred]) \n\t"
"gsldrc1 %[ftmp4], 0x00(%[pred]) \n\t"
MMI_ADDU(%[src], %[src], %[src_stride])
MMI_ADDU(%[pred], %[pred], %[pred_stride])
"gsldlc1 %[ftmp5], 0x07(%[src]) \n\t"
"gsldrc1 %[ftmp5], 0x00(%[src]) \n\t"
"gsldlc1 %[ftmp6], 0x07(%[pred]) \n\t"
"gsldrc1 %[ftmp6], 0x00(%[pred]) \n\t"
MMI_ADDU(%[src], %[src], %[src_stride])
MMI_ADDU(%[pred], %[pred], %[pred_stride])
"gsldlc1 %[ftmp7], 0x07(%[src]) \n\t"
"gsldrc1 %[ftmp7], 0x00(%[src]) \n\t"
"gsldlc1 %[ftmp8], 0x07(%[pred]) \n\t"
"gsldrc1 %[ftmp8], 0x00(%[pred]) \n\t"
MMI_ADDU(%[src], %[src], %[src_stride])
MMI_ADDU(%[pred], %[pred], %[pred_stride])
"punpcklbh %[ftmp9], %[ftmp1], %[ftmp0] \n\t"
"punpckhbh %[ftmp10], %[ftmp1], %[ftmp0] \n\t"
"punpcklbh %[ftmp11], %[ftmp2], %[ftmp0] \n\t"
"punpckhbh %[ftmp12], %[ftmp2], %[ftmp0] \n\t"
"psubsh %[ftmp9], %[ftmp9], %[ftmp11] \n\t"
"psubsh %[ftmp10], %[ftmp10], %[ftmp12] \n\t"
"gssdlc1 %[ftmp9], 0x07(%[diff]) \n\t"
"gssdrc1 %[ftmp9], 0x00(%[diff]) \n\t"
"gssdlc1 %[ftmp10], 0x0f(%[diff]) \n\t"
"gssdrc1 %[ftmp10], 0x08(%[diff]) \n\t"
MMI_ADDU(%[diff], %[diff], %[diff_stride])
"punpcklbh %[ftmp9], %[ftmp3], %[ftmp0] \n\t"
"punpckhbh %[ftmp10], %[ftmp3], %[ftmp0] \n\t"
"punpcklbh %[ftmp11], %[ftmp4], %[ftmp0] \n\t"
"punpckhbh %[ftmp12], %[ftmp4], %[ftmp0] \n\t"
"psubsh %[ftmp9], %[ftmp9], %[ftmp11] \n\t"
"psubsh %[ftmp10], %[ftmp10], %[ftmp12] \n\t"
"gssdlc1 %[ftmp9], 0x07(%[diff]) \n\t"
"gssdrc1 %[ftmp9], 0x00(%[diff]) \n\t"
"gssdlc1 %[ftmp10], 0x0f(%[diff]) \n\t"
"gssdrc1 %[ftmp10], 0x08(%[diff]) \n\t"
MMI_ADDU(%[diff], %[diff], %[diff_stride])
"punpcklbh %[ftmp9], %[ftmp5], %[ftmp0] \n\t"
"punpckhbh %[ftmp10], %[ftmp5], %[ftmp0] \n\t"
"punpcklbh %[ftmp11], %[ftmp6], %[ftmp0] \n\t"
"punpckhbh %[ftmp12], %[ftmp6], %[ftmp0] \n\t"
"psubsh %[ftmp9], %[ftmp9], %[ftmp11] \n\t"
"psubsh %[ftmp10], %[ftmp10], %[ftmp12] \n\t"
"gssdlc1 %[ftmp9], 0x07(%[diff]) \n\t"
"gssdrc1 %[ftmp9], 0x00(%[diff]) \n\t"
"gssdlc1 %[ftmp10], 0x0f(%[diff]) \n\t"
"gssdrc1 %[ftmp10], 0x08(%[diff]) \n\t"
MMI_ADDU(%[diff], %[diff], %[diff_stride])
"punpcklbh %[ftmp9], %[ftmp7], %[ftmp0] \n\t"
"punpckhbh %[ftmp10], %[ftmp7], %[ftmp0] \n\t"
"punpcklbh %[ftmp11], %[ftmp8], %[ftmp0] \n\t"
"punpckhbh %[ftmp12], %[ftmp8], %[ftmp0] \n\t"
"psubsh %[ftmp9], %[ftmp9], %[ftmp11] \n\t"
"psubsh %[ftmp10], %[ftmp10], %[ftmp12] \n\t"
"gssdlc1 %[ftmp9], 0x07(%[diff]) \n\t"
"gssdrc1 %[ftmp9], 0x00(%[diff]) \n\t"
"gssdlc1 %[ftmp10], 0x0f(%[diff]) \n\t"
"gssdrc1 %[ftmp10], 0x08(%[diff]) \n\t"
MMI_ADDU(%[diff], %[diff], %[diff_stride])
"addiu %[tmp0], %[tmp0], -0x01 \n\t"
"bnez %[tmp0], 1b \n\t"
: [ftmp0] "=&f"(ftmp[0]), [ftmp1] "=&f"(ftmp[1]),
[ftmp2] "=&f"(ftmp[2]), [ftmp3] "=&f"(ftmp[3]),
[ftmp4] "=&f"(ftmp[4]), [ftmp5] "=&f"(ftmp[5]),
[ftmp6] "=&f"(ftmp[6]), [ftmp7] "=&f"(ftmp[7]),
[ftmp8] "=&f"(ftmp[8]), [ftmp9] "=&f"(ftmp[9]),
[ftmp10] "=&f"(ftmp[10]), [ftmp11] "=&f"(ftmp[11]),
[ftmp12] "=&f"(ftmp[12]), [tmp0] "=&r"(tmp[0]), [src] "+&r"(src),
[pred] "+&r"(pred), [diff] "+&r"(diff)
: [pred_stride] "r"((mips_reg)pred_stride),
[src_stride] "r"((mips_reg)src_stride),
[diff_stride] "r"((mips_reg)(diff_stride * 2))
: "memory");
break;
case 16:
__asm__ volatile(
"xor %[ftmp0], %[ftmp0], %[ftmp0] \n\t"
"li %[tmp0], 0x08 \n\t"
"1: \n\t"
"gsldlc1 %[ftmp1], 0x07(%[src]) \n\t"
"gsldrc1 %[ftmp1], 0x00(%[src]) \n\t"
"gsldlc1 %[ftmp2], 0x07(%[pred]) \n\t"
"gsldrc1 %[ftmp2], 0x00(%[pred]) \n\t"
"gsldlc1 %[ftmp3], 0x0f(%[src]) \n\t"
"gsldrc1 %[ftmp3], 0x08(%[src]) \n\t"
"gsldlc1 %[ftmp4], 0x0f(%[pred]) \n\t"
"gsldrc1 %[ftmp4], 0x08(%[pred]) \n\t"
MMI_ADDU(%[src], %[src], %[src_stride])
MMI_ADDU(%[pred], %[pred], %[pred_stride])
"gsldlc1 %[ftmp5], 0x07(%[src]) \n\t"
"gsldrc1 %[ftmp5], 0x00(%[src]) \n\t"
"gsldlc1 %[ftmp6], 0x07(%[pred]) \n\t"
"gsldrc1 %[ftmp6], 0x00(%[pred]) \n\t"
"gsldlc1 %[ftmp7], 0x0f(%[src]) \n\t"
"gsldrc1 %[ftmp7], 0x08(%[src]) \n\t"
"gsldlc1 %[ftmp8], 0x0f(%[pred]) \n\t"
"gsldrc1 %[ftmp8], 0x08(%[pred]) \n\t"
MMI_ADDU(%[src], %[src], %[src_stride])
MMI_ADDU(%[pred], %[pred], %[pred_stride])
"punpcklbh %[ftmp9], %[ftmp1], %[ftmp0] \n\t"
"punpckhbh %[ftmp10], %[ftmp1], %[ftmp0] \n\t"
"punpcklbh %[ftmp11], %[ftmp2], %[ftmp0] \n\t"
"punpckhbh %[ftmp12], %[ftmp2], %[ftmp0] \n\t"
"psubsh %[ftmp9], %[ftmp9], %[ftmp11] \n\t"
"psubsh %[ftmp10], %[ftmp10], %[ftmp12] \n\t"
"gssdlc1 %[ftmp9], 0x07(%[diff]) \n\t"
"gssdrc1 %[ftmp9], 0x00(%[diff]) \n\t"
"gssdlc1 %[ftmp10], 0x0f(%[diff]) \n\t"
"gssdrc1 %[ftmp10], 0x08(%[diff]) \n\t"
"punpcklbh %[ftmp9], %[ftmp3], %[ftmp0] \n\t"
"punpckhbh %[ftmp10], %[ftmp3], %[ftmp0] \n\t"
"punpcklbh %[ftmp11], %[ftmp4], %[ftmp0] \n\t"
"punpckhbh %[ftmp12], %[ftmp4], %[ftmp0] \n\t"
"psubsh %[ftmp9], %[ftmp9], %[ftmp11] \n\t"
"psubsh %[ftmp10], %[ftmp10], %[ftmp12] \n\t"
"gssdlc1 %[ftmp9], 0x17(%[diff]) \n\t"
"gssdrc1 %[ftmp9], 0x10(%[diff]) \n\t"
"gssdlc1 %[ftmp10], 0x1f(%[diff]) \n\t"
"gssdrc1 %[ftmp10], 0x18(%[diff]) \n\t"
MMI_ADDU(%[diff], %[diff], %[diff_stride])
"punpcklbh %[ftmp9], %[ftmp5], %[ftmp0] \n\t"
"punpckhbh %[ftmp10], %[ftmp5], %[ftmp0] \n\t"
"punpcklbh %[ftmp11], %[ftmp6], %[ftmp0] \n\t"
"punpckhbh %[ftmp12], %[ftmp6], %[ftmp0] \n\t"
"psubsh %[ftmp9], %[ftmp9], %[ftmp11] \n\t"
"psubsh %[ftmp10], %[ftmp10], %[ftmp12] \n\t"
"gssdlc1 %[ftmp9], 0x07(%[diff]) \n\t"
"gssdrc1 %[ftmp9], 0x00(%[diff]) \n\t"
"gssdlc1 %[ftmp10], 0x0f(%[diff]) \n\t"
"gssdrc1 %[ftmp10], 0x08(%[diff]) \n\t"
"punpcklbh %[ftmp9], %[ftmp7], %[ftmp0] \n\t"
"punpckhbh %[ftmp10], %[ftmp7], %[ftmp0] \n\t"
"punpcklbh %[ftmp11], %[ftmp8], %[ftmp0] \n\t"
"punpckhbh %[ftmp12], %[ftmp8], %[ftmp0] \n\t"
"psubsh %[ftmp9], %[ftmp9], %[ftmp11] \n\t"
"psubsh %[ftmp10], %[ftmp10], %[ftmp12] \n\t"
"gssdlc1 %[ftmp9], 0x17(%[diff]) \n\t"
"gssdrc1 %[ftmp9], 0x10(%[diff]) \n\t"
"gssdlc1 %[ftmp10], 0x1f(%[diff]) \n\t"
"gssdrc1 %[ftmp10], 0x18(%[diff]) \n\t"
MMI_ADDU(%[diff], %[diff], %[diff_stride])
"addiu %[tmp0], %[tmp0], -0x01 \n\t"
"bnez %[tmp0], 1b \n\t"
: [ftmp0] "=&f"(ftmp[0]), [ftmp1] "=&f"(ftmp[1]),
[ftmp2] "=&f"(ftmp[2]), [ftmp3] "=&f"(ftmp[3]),
[ftmp4] "=&f"(ftmp[4]), [ftmp5] "=&f"(ftmp[5]),
[ftmp6] "=&f"(ftmp[6]), [ftmp7] "=&f"(ftmp[7]),
[ftmp8] "=&f"(ftmp[8]), [ftmp9] "=&f"(ftmp[9]),
[ftmp10] "=&f"(ftmp[10]), [ftmp11] "=&f"(ftmp[11]),
[ftmp12] "=&f"(ftmp[12]), [tmp0] "=&r"(tmp[0]), [src] "+&r"(src),
[pred] "+&r"(pred), [diff] "+&r"(diff)
: [pred_stride] "r"((mips_reg)pred_stride),
[src_stride] "r"((mips_reg)src_stride),
[diff_stride] "r"((mips_reg)(diff_stride * 2))
: "memory");
break;
case 32:
vpx_subtract_block_c(rows, cols, diff, diff_stride, src, src_stride,
pred, pred_stride);
break;
case 64:
vpx_subtract_block_c(rows, cols, diff, diff_stride, src, src_stride,
pred, pred_stride);
break;
default:
vpx_subtract_block_c(rows, cols, diff, diff_stride, src, src_stride,
pred, pred_stride);
break;
}
} else {
vpx_subtract_block_c(rows, cols, diff, diff_stride, src, src_stride, pred,
pred_stride);
}
}