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/*
* Copyright © 2023, VideoLAN and dav1d authors
* Copyright © 2023, Loongson Technology Corporation Limited
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "src/loongarch/loongson_asm.S"
/*
static void splat_mv_c(refmvs_block **rr, const refmvs_block *const rmv,
const int bx4, const int bw4, int bh4)
*/
function splat_mv_lsx
vld vr0, a1, 0 // 0 1 ... 11 ...
clz.w t4, a3
vaddi.bu vr1, vr0, 0
addi.w t4, t4, -26
vextrins.w vr1, vr0, 0x30 // 0 1 2 ... 11 0 1 2 3
la.local t5, .SPLAT_LSX_JRTABLE
vbsrl.v vr2, vr1, 4 // 4 5 6 7...11 0 1 2 3 0 0 0 0
alsl.d t6, t4, t5, 1
vextrins.w vr2, vr0, 0x31 // 4 5 6 7...11 0 1 2 3 4 5 6 7
ld.h t7, t6, 0
vbsrl.v vr3, vr2, 4 // 8 9 10 11 0 1 2 3 4 5 6 7 0 0 0 0
add.d t8, t5, t7
alsl.d a2, a2, a2, 1
vextrins.w vr3, vr0, 0x32 // 8 9 10 11 0 1 2 3 4 5 6 7 8 9 10 11
slli.w a2, a2, 2
jirl $r0, t8, 0
.SPLAT_LSX_JRTABLE:
.hword .SPLAT_W32_LSX - .SPLAT_LSX_JRTABLE
.hword .SPLAT_W16_LSX - .SPLAT_LSX_JRTABLE
.hword .SPLAT_W8_LSX - .SPLAT_LSX_JRTABLE
.hword .SPLAT_W4_LSX - .SPLAT_LSX_JRTABLE
.hword .SPLAT_W2_LSX - .SPLAT_LSX_JRTABLE
.hword .SPLAT_W1_LSX - .SPLAT_LSX_JRTABLE
.SPLAT_W1_LSX:
ld.d t3, a0, 0
addi.d a0, a0, 8
addi.d a4, a4, -1
add.d t3, t3, a2
fst.d f1, t3, 0
fst.s f3, t3, 8
blt zero, a4, .SPLAT_W1_LSX
b .splat_end
.SPLAT_W2_LSX:
ld.d t3, a0, 0
addi.d a0, a0, 8
addi.d a4, a4, -1
add.d t3, t3, a2
vst vr1, t3, 0
fst.d f2, t3, 16
blt zero, a4, .SPLAT_W2_LSX
b .splat_end
.SPLAT_W4_LSX:
ld.d t3, a0, 0
addi.d a0, a0, 8
addi.d a4, a4, -1
add.d t3, t3, a2
vst vr1, t3, 0
vst vr2, t3, 16
vst vr3, t3, 32
blt zero, a4, .SPLAT_W4_LSX
b .splat_end
.SPLAT_W8_LSX:
ld.d t3, a0, 0
addi.d a0, a0, 8
addi.d a4, a4, -1
add.d t3, t3, a2
vst vr1, t3, 0
vst vr2, t3, 16
vst vr3, t3, 32
vst vr1, t3, 48
vst vr2, t3, 64
vst vr3, t3, 80
blt zero, a4, .SPLAT_W8_LSX
b .splat_end
.SPLAT_W16_LSX:
ld.d t3, a0, 0
addi.d a0, a0, 8
addi.d a4, a4, -1
add.d t3, t3, a2
.rept 2
vst vr1, t3, 0
vst vr2, t3, 16
vst vr3, t3, 32
vst vr1, t3, 48
vst vr2, t3, 64
vst vr3, t3, 80
addi.d t3, t3, 96
.endr
blt zero, a4, .SPLAT_W16_LSX
b .splat_end
.SPLAT_W32_LSX:
ld.d t3, a0, 0
addi.d a0, a0, 8
addi.d a4, a4, -1
add.d t3, t3, a2
.rept 4
vst vr1, t3, 0
vst vr2, t3, 16
vst vr3, t3, 32
vst vr1, t3, 48
vst vr2, t3, 64
vst vr3, t3, 80
addi.d t3, t3, 96
.endr
blt zero, a4, .SPLAT_W32_LSX
.splat_end:
endfunc