ref: d94f1c84ccef8b9ac9765aa337865ec8c01fbcce
dir: /third_party/libyuv/source/rotate_mips.cc/
/*
* Copyright 2011 The LibYuv 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 "libyuv/row.h"
#include "libyuv/rotate_row.h"
#include "libyuv/basic_types.h"
#ifdef __cplusplus
namespace libyuv {
extern "C" {
#endif
#if !defined(LIBYUV_DISABLE_MIPS) && \
defined(__mips_dsp) && (__mips_dsp_rev >= 2) && \
(_MIPS_SIM == _MIPS_SIM_ABI32)
void TransposeWx8_DSPR2(const uint8* src, int src_stride,
uint8* dst, int dst_stride, int width) {
__asm__ __volatile__ (
".set push \n"
".set noreorder \n"
"sll $t2, %[src_stride], 0x1 \n" // src_stride x 2
"sll $t4, %[src_stride], 0x2 \n" // src_stride x 4
"sll $t9, %[src_stride], 0x3 \n" // src_stride x 8
"addu $t3, $t2, %[src_stride] \n"
"addu $t5, $t4, %[src_stride] \n"
"addu $t6, $t2, $t4 \n"
"andi $t0, %[dst], 0x3 \n"
"andi $t1, %[dst_stride], 0x3 \n"
"or $t0, $t0, $t1 \n"
"bnez $t0, 11f \n"
" subu $t7, $t9, %[src_stride] \n"
//dst + dst_stride word aligned
"1: \n"
"lbu $t0, 0(%[src]) \n"
"lbux $t1, %[src_stride](%[src]) \n"
"lbux $t8, $t2(%[src]) \n"
"lbux $t9, $t3(%[src]) \n"
"sll $t1, $t1, 16 \n"
"sll $t9, $t9, 16 \n"
"or $t0, $t0, $t1 \n"
"or $t8, $t8, $t9 \n"
"precr.qb.ph $s0, $t8, $t0 \n"
"lbux $t0, $t4(%[src]) \n"
"lbux $t1, $t5(%[src]) \n"
"lbux $t8, $t6(%[src]) \n"
"lbux $t9, $t7(%[src]) \n"
"sll $t1, $t1, 16 \n"
"sll $t9, $t9, 16 \n"
"or $t0, $t0, $t1 \n"
"or $t8, $t8, $t9 \n"
"precr.qb.ph $s1, $t8, $t0 \n"
"sw $s0, 0(%[dst]) \n"
"addiu %[width], -1 \n"
"addiu %[src], 1 \n"
"sw $s1, 4(%[dst]) \n"
"bnez %[width], 1b \n"
" addu %[dst], %[dst], %[dst_stride] \n"
"b 2f \n"
//dst + dst_stride unaligned
"11: \n"
"lbu $t0, 0(%[src]) \n"
"lbux $t1, %[src_stride](%[src]) \n"
"lbux $t8, $t2(%[src]) \n"
"lbux $t9, $t3(%[src]) \n"
"sll $t1, $t1, 16 \n"
"sll $t9, $t9, 16 \n"
"or $t0, $t0, $t1 \n"
"or $t8, $t8, $t9 \n"
"precr.qb.ph $s0, $t8, $t0 \n"
"lbux $t0, $t4(%[src]) \n"
"lbux $t1, $t5(%[src]) \n"
"lbux $t8, $t6(%[src]) \n"
"lbux $t9, $t7(%[src]) \n"
"sll $t1, $t1, 16 \n"
"sll $t9, $t9, 16 \n"
"or $t0, $t0, $t1 \n"
"or $t8, $t8, $t9 \n"
"precr.qb.ph $s1, $t8, $t0 \n"
"swr $s0, 0(%[dst]) \n"
"swl $s0, 3(%[dst]) \n"
"addiu %[width], -1 \n"
"addiu %[src], 1 \n"
"swr $s1, 4(%[dst]) \n"
"swl $s1, 7(%[dst]) \n"
"bnez %[width], 11b \n"
"addu %[dst], %[dst], %[dst_stride] \n"
"2: \n"
".set pop \n"
:[src] "+r" (src),
[dst] "+r" (dst),
[width] "+r" (width)
:[src_stride] "r" (src_stride),
[dst_stride] "r" (dst_stride)
: "t0", "t1", "t2", "t3", "t4", "t5",
"t6", "t7", "t8", "t9",
"s0", "s1"
);
}
void TransposeWx8_Fast_DSPR2(const uint8* src, int src_stride,
uint8* dst, int dst_stride, int width) {
__asm__ __volatile__ (
".set noat \n"
".set push \n"
".set noreorder \n"
"beqz %[width], 2f \n"
" sll $t2, %[src_stride], 0x1 \n" // src_stride x 2
"sll $t4, %[src_stride], 0x2 \n" // src_stride x 4
"sll $t9, %[src_stride], 0x3 \n" // src_stride x 8
"addu $t3, $t2, %[src_stride] \n"
"addu $t5, $t4, %[src_stride] \n"
"addu $t6, $t2, $t4 \n"
"srl $AT, %[width], 0x2 \n"
"andi $t0, %[dst], 0x3 \n"
"andi $t1, %[dst_stride], 0x3 \n"
"or $t0, $t0, $t1 \n"
"bnez $t0, 11f \n"
" subu $t7, $t9, %[src_stride] \n"
//dst + dst_stride word aligned
"1: \n"
"lw $t0, 0(%[src]) \n"
"lwx $t1, %[src_stride](%[src]) \n"
"lwx $t8, $t2(%[src]) \n"
"lwx $t9, $t3(%[src]) \n"
// t0 = | 30 | 20 | 10 | 00 |
// t1 = | 31 | 21 | 11 | 01 |
// t8 = | 32 | 22 | 12 | 02 |
// t9 = | 33 | 23 | 13 | 03 |
"precr.qb.ph $s0, $t1, $t0 \n"
"precr.qb.ph $s1, $t9, $t8 \n"
"precrq.qb.ph $s2, $t1, $t0 \n"
"precrq.qb.ph $s3, $t9, $t8 \n"
// s0 = | 21 | 01 | 20 | 00 |
// s1 = | 23 | 03 | 22 | 02 |
// s2 = | 31 | 11 | 30 | 10 |
// s3 = | 33 | 13 | 32 | 12 |
"precr.qb.ph $s4, $s1, $s0 \n"
"precrq.qb.ph $s5, $s1, $s0 \n"
"precr.qb.ph $s6, $s3, $s2 \n"
"precrq.qb.ph $s7, $s3, $s2 \n"
// s4 = | 03 | 02 | 01 | 00 |
// s5 = | 23 | 22 | 21 | 20 |
// s6 = | 13 | 12 | 11 | 10 |
// s7 = | 33 | 32 | 31 | 30 |
"lwx $t0, $t4(%[src]) \n"
"lwx $t1, $t5(%[src]) \n"
"lwx $t8, $t6(%[src]) \n"
"lwx $t9, $t7(%[src]) \n"
// t0 = | 34 | 24 | 14 | 04 |
// t1 = | 35 | 25 | 15 | 05 |
// t8 = | 36 | 26 | 16 | 06 |
// t9 = | 37 | 27 | 17 | 07 |
"precr.qb.ph $s0, $t1, $t0 \n"
"precr.qb.ph $s1, $t9, $t8 \n"
"precrq.qb.ph $s2, $t1, $t0 \n"
"precrq.qb.ph $s3, $t9, $t8 \n"
// s0 = | 25 | 05 | 24 | 04 |
// s1 = | 27 | 07 | 26 | 06 |
// s2 = | 35 | 15 | 34 | 14 |
// s3 = | 37 | 17 | 36 | 16 |
"precr.qb.ph $t0, $s1, $s0 \n"
"precrq.qb.ph $t1, $s1, $s0 \n"
"precr.qb.ph $t8, $s3, $s2 \n"
"precrq.qb.ph $t9, $s3, $s2 \n"
// t0 = | 07 | 06 | 05 | 04 |
// t1 = | 27 | 26 | 25 | 24 |
// t8 = | 17 | 16 | 15 | 14 |
// t9 = | 37 | 36 | 35 | 34 |
"addu $s0, %[dst], %[dst_stride] \n"
"addu $s1, $s0, %[dst_stride] \n"
"addu $s2, $s1, %[dst_stride] \n"
"sw $s4, 0(%[dst]) \n"
"sw $t0, 4(%[dst]) \n"
"sw $s6, 0($s0) \n"
"sw $t8, 4($s0) \n"
"sw $s5, 0($s1) \n"
"sw $t1, 4($s1) \n"
"sw $s7, 0($s2) \n"
"sw $t9, 4($s2) \n"
"addiu $AT, -1 \n"
"addiu %[src], 4 \n"
"bnez $AT, 1b \n"
" addu %[dst], $s2, %[dst_stride] \n"
"b 2f \n"
//dst + dst_stride unaligned
"11: \n"
"lw $t0, 0(%[src]) \n"
"lwx $t1, %[src_stride](%[src]) \n"
"lwx $t8, $t2(%[src]) \n"
"lwx $t9, $t3(%[src]) \n"
// t0 = | 30 | 20 | 10 | 00 |
// t1 = | 31 | 21 | 11 | 01 |
// t8 = | 32 | 22 | 12 | 02 |
// t9 = | 33 | 23 | 13 | 03 |
"precr.qb.ph $s0, $t1, $t0 \n"
"precr.qb.ph $s1, $t9, $t8 \n"
"precrq.qb.ph $s2, $t1, $t0 \n"
"precrq.qb.ph $s3, $t9, $t8 \n"
// s0 = | 21 | 01 | 20 | 00 |
// s1 = | 23 | 03 | 22 | 02 |
// s2 = | 31 | 11 | 30 | 10 |
// s3 = | 33 | 13 | 32 | 12 |
"precr.qb.ph $s4, $s1, $s0 \n"
"precrq.qb.ph $s5, $s1, $s0 \n"
"precr.qb.ph $s6, $s3, $s2 \n"
"precrq.qb.ph $s7, $s3, $s2 \n"
// s4 = | 03 | 02 | 01 | 00 |
// s5 = | 23 | 22 | 21 | 20 |
// s6 = | 13 | 12 | 11 | 10 |
// s7 = | 33 | 32 | 31 | 30 |
"lwx $t0, $t4(%[src]) \n"
"lwx $t1, $t5(%[src]) \n"
"lwx $t8, $t6(%[src]) \n"
"lwx $t9, $t7(%[src]) \n"
// t0 = | 34 | 24 | 14 | 04 |
// t1 = | 35 | 25 | 15 | 05 |
// t8 = | 36 | 26 | 16 | 06 |
// t9 = | 37 | 27 | 17 | 07 |
"precr.qb.ph $s0, $t1, $t0 \n"
"precr.qb.ph $s1, $t9, $t8 \n"
"precrq.qb.ph $s2, $t1, $t0 \n"
"precrq.qb.ph $s3, $t9, $t8 \n"
// s0 = | 25 | 05 | 24 | 04 |
// s1 = | 27 | 07 | 26 | 06 |
// s2 = | 35 | 15 | 34 | 14 |
// s3 = | 37 | 17 | 36 | 16 |
"precr.qb.ph $t0, $s1, $s0 \n"
"precrq.qb.ph $t1, $s1, $s0 \n"
"precr.qb.ph $t8, $s3, $s2 \n"
"precrq.qb.ph $t9, $s3, $s2 \n"
// t0 = | 07 | 06 | 05 | 04 |
// t1 = | 27 | 26 | 25 | 24 |
// t8 = | 17 | 16 | 15 | 14 |
// t9 = | 37 | 36 | 35 | 34 |
"addu $s0, %[dst], %[dst_stride] \n"
"addu $s1, $s0, %[dst_stride] \n"
"addu $s2, $s1, %[dst_stride] \n"
"swr $s4, 0(%[dst]) \n"
"swl $s4, 3(%[dst]) \n"
"swr $t0, 4(%[dst]) \n"
"swl $t0, 7(%[dst]) \n"
"swr $s6, 0($s0) \n"
"swl $s6, 3($s0) \n"
"swr $t8, 4($s0) \n"
"swl $t8, 7($s0) \n"
"swr $s5, 0($s1) \n"
"swl $s5, 3($s1) \n"
"swr $t1, 4($s1) \n"
"swl $t1, 7($s1) \n"
"swr $s7, 0($s2) \n"
"swl $s7, 3($s2) \n"
"swr $t9, 4($s2) \n"
"swl $t9, 7($s2) \n"
"addiu $AT, -1 \n"
"addiu %[src], 4 \n"
"bnez $AT, 11b \n"
" addu %[dst], $s2, %[dst_stride] \n"
"2: \n"
".set pop \n"
".set at \n"
:[src] "+r" (src),
[dst] "+r" (dst),
[width] "+r" (width)
:[src_stride] "r" (src_stride),
[dst_stride] "r" (dst_stride)
: "t0", "t1", "t2", "t3", "t4", "t5", "t6", "t7", "t8", "t9",
"s0", "s1", "s2", "s3", "s4", "s5", "s6", "s7"
);
}
void TransposeUVWx8_DSPR2(const uint8* src, int src_stride,
uint8* dst_a, int dst_stride_a,
uint8* dst_b, int dst_stride_b,
int width) {
__asm__ __volatile__ (
".set push \n"
".set noreorder \n"
"beqz %[width], 2f \n"
" sll $t2, %[src_stride], 0x1 \n" // src_stride x 2
"sll $t4, %[src_stride], 0x2 \n" // src_stride x 4
"sll $t9, %[src_stride], 0x3 \n" // src_stride x 8
"addu $t3, $t2, %[src_stride] \n"
"addu $t5, $t4, %[src_stride] \n"
"addu $t6, $t2, $t4 \n"
"subu $t7, $t9, %[src_stride] \n"
"srl $t1, %[width], 1 \n"
// check word aligment for dst_a, dst_b, dst_stride_a and dst_stride_b
"andi $t0, %[dst_a], 0x3 \n"
"andi $t8, %[dst_b], 0x3 \n"
"or $t0, $t0, $t8 \n"
"andi $t8, %[dst_stride_a], 0x3 \n"
"andi $s5, %[dst_stride_b], 0x3 \n"
"or $t8, $t8, $s5 \n"
"or $t0, $t0, $t8 \n"
"bnez $t0, 11f \n"
" nop \n"
// dst + dst_stride word aligned (both, a & b dst addresses)
"1: \n"
"lw $t0, 0(%[src]) \n" // |B0|A0|b0|a0|
"lwx $t8, %[src_stride](%[src]) \n" // |B1|A1|b1|a1|
"addu $s5, %[dst_a], %[dst_stride_a] \n"
"lwx $t9, $t2(%[src]) \n" // |B2|A2|b2|a2|
"lwx $s0, $t3(%[src]) \n" // |B3|A3|b3|a3|
"addu $s6, %[dst_b], %[dst_stride_b] \n"
"precrq.ph.w $s1, $t8, $t0 \n" // |B1|A1|B0|A0|
"precrq.ph.w $s2, $s0, $t9 \n" // |B3|A3|B2|A2|
"precr.qb.ph $s3, $s2, $s1 \n" // |A3|A2|A1|A0|
"precrq.qb.ph $s4, $s2, $s1 \n" // |B3|B2|B1|B0|
"sll $t0, $t0, 16 \n"
"packrl.ph $s1, $t8, $t0 \n" // |b1|a1|b0|a0|
"sll $t9, $t9, 16 \n"
"packrl.ph $s2, $s0, $t9 \n" // |b3|a3|b2|a2|
"sw $s3, 0($s5) \n"
"sw $s4, 0($s6) \n"
"precr.qb.ph $s3, $s2, $s1 \n" // |a3|a2|a1|a0|
"precrq.qb.ph $s4, $s2, $s1 \n" // |b3|b2|b1|b0|
"lwx $t0, $t4(%[src]) \n" // |B4|A4|b4|a4|
"lwx $t8, $t5(%[src]) \n" // |B5|A5|b5|a5|
"lwx $t9, $t6(%[src]) \n" // |B6|A6|b6|a6|
"lwx $s0, $t7(%[src]) \n" // |B7|A7|b7|a7|
"sw $s3, 0(%[dst_a]) \n"
"sw $s4, 0(%[dst_b]) \n"
"precrq.ph.w $s1, $t8, $t0 \n" // |B5|A5|B4|A4|
"precrq.ph.w $s2, $s0, $t9 \n" // |B6|A6|B7|A7|
"precr.qb.ph $s3, $s2, $s1 \n" // |A7|A6|A5|A4|
"precrq.qb.ph $s4, $s2, $s1 \n" // |B7|B6|B5|B4|
"sll $t0, $t0, 16 \n"
"packrl.ph $s1, $t8, $t0 \n" // |b5|a5|b4|a4|
"sll $t9, $t9, 16 \n"
"packrl.ph $s2, $s0, $t9 \n" // |b7|a7|b6|a6|
"sw $s3, 4($s5) \n"
"sw $s4, 4($s6) \n"
"precr.qb.ph $s3, $s2, $s1 \n" // |a7|a6|a5|a4|
"precrq.qb.ph $s4, $s2, $s1 \n" // |b7|b6|b5|b4|
"addiu %[src], 4 \n"
"addiu $t1, -1 \n"
"sll $t0, %[dst_stride_a], 1 \n"
"sll $t8, %[dst_stride_b], 1 \n"
"sw $s3, 4(%[dst_a]) \n"
"sw $s4, 4(%[dst_b]) \n"
"addu %[dst_a], %[dst_a], $t0 \n"
"bnez $t1, 1b \n"
" addu %[dst_b], %[dst_b], $t8 \n"
"b 2f \n"
" nop \n"
// dst_a or dst_b or dst_stride_a or dst_stride_b not word aligned
"11: \n"
"lw $t0, 0(%[src]) \n" // |B0|A0|b0|a0|
"lwx $t8, %[src_stride](%[src]) \n" // |B1|A1|b1|a1|
"addu $s5, %[dst_a], %[dst_stride_a] \n"
"lwx $t9, $t2(%[src]) \n" // |B2|A2|b2|a2|
"lwx $s0, $t3(%[src]) \n" // |B3|A3|b3|a3|
"addu $s6, %[dst_b], %[dst_stride_b] \n"
"precrq.ph.w $s1, $t8, $t0 \n" // |B1|A1|B0|A0|
"precrq.ph.w $s2, $s0, $t9 \n" // |B3|A3|B2|A2|
"precr.qb.ph $s3, $s2, $s1 \n" // |A3|A2|A1|A0|
"precrq.qb.ph $s4, $s2, $s1 \n" // |B3|B2|B1|B0|
"sll $t0, $t0, 16 \n"
"packrl.ph $s1, $t8, $t0 \n" // |b1|a1|b0|a0|
"sll $t9, $t9, 16 \n"
"packrl.ph $s2, $s0, $t9 \n" // |b3|a3|b2|a2|
"swr $s3, 0($s5) \n"
"swl $s3, 3($s5) \n"
"swr $s4, 0($s6) \n"
"swl $s4, 3($s6) \n"
"precr.qb.ph $s3, $s2, $s1 \n" // |a3|a2|a1|a0|
"precrq.qb.ph $s4, $s2, $s1 \n" // |b3|b2|b1|b0|
"lwx $t0, $t4(%[src]) \n" // |B4|A4|b4|a4|
"lwx $t8, $t5(%[src]) \n" // |B5|A5|b5|a5|
"lwx $t9, $t6(%[src]) \n" // |B6|A6|b6|a6|
"lwx $s0, $t7(%[src]) \n" // |B7|A7|b7|a7|
"swr $s3, 0(%[dst_a]) \n"
"swl $s3, 3(%[dst_a]) \n"
"swr $s4, 0(%[dst_b]) \n"
"swl $s4, 3(%[dst_b]) \n"
"precrq.ph.w $s1, $t8, $t0 \n" // |B5|A5|B4|A4|
"precrq.ph.w $s2, $s0, $t9 \n" // |B6|A6|B7|A7|
"precr.qb.ph $s3, $s2, $s1 \n" // |A7|A6|A5|A4|
"precrq.qb.ph $s4, $s2, $s1 \n" // |B7|B6|B5|B4|
"sll $t0, $t0, 16 \n"
"packrl.ph $s1, $t8, $t0 \n" // |b5|a5|b4|a4|
"sll $t9, $t9, 16 \n"
"packrl.ph $s2, $s0, $t9 \n" // |b7|a7|b6|a6|
"swr $s3, 4($s5) \n"
"swl $s3, 7($s5) \n"
"swr $s4, 4($s6) \n"
"swl $s4, 7($s6) \n"
"precr.qb.ph $s3, $s2, $s1 \n" // |a7|a6|a5|a4|
"precrq.qb.ph $s4, $s2, $s1 \n" // |b7|b6|b5|b4|
"addiu %[src], 4 \n"
"addiu $t1, -1 \n"
"sll $t0, %[dst_stride_a], 1 \n"
"sll $t8, %[dst_stride_b], 1 \n"
"swr $s3, 4(%[dst_a]) \n"
"swl $s3, 7(%[dst_a]) \n"
"swr $s4, 4(%[dst_b]) \n"
"swl $s4, 7(%[dst_b]) \n"
"addu %[dst_a], %[dst_a], $t0 \n"
"bnez $t1, 11b \n"
" addu %[dst_b], %[dst_b], $t8 \n"
"2: \n"
".set pop \n"
: [src] "+r" (src),
[dst_a] "+r" (dst_a),
[dst_b] "+r" (dst_b),
[width] "+r" (width),
[src_stride] "+r" (src_stride)
: [dst_stride_a] "r" (dst_stride_a),
[dst_stride_b] "r" (dst_stride_b)
: "t0", "t1", "t2", "t3", "t4", "t5",
"t6", "t7", "t8", "t9",
"s0", "s1", "s2", "s3",
"s4", "s5", "s6"
);
}
#endif // defined(__mips_dsp) && (__mips_dsp_rev >= 2)
#ifdef __cplusplus
} // extern "C"
} // namespace libyuv
#endif