2020-06-16 13:38:43 +00:00
|
|
|
|
/*-*- mode:unix-assembly; indent-tabs-mode:t; tab-width:8; coding:utf-8 -*-│
|
2020-06-15 14:18:57 +00:00
|
|
|
|
│vi: set et ft=asm ts=8 tw=8 fenc=utf-8 :vi│
|
|
|
|
|
|
╞══════════════════════════════════════════════════════════════════════════════╡
|
|
|
|
|
|
│ Copyright 2020 Justine Alexandra Roberts Tunney │
|
|
|
|
|
|
│ │
|
2020-12-28 01:18:44 +00:00
|
|
|
|
│ Permission to use, copy, modify, and/or distribute this software for │
|
|
|
|
|
|
│ any purpose with or without fee is hereby granted, provided that the │
|
|
|
|
|
|
│ above copyright notice and this permission notice appear in all copies. │
|
2020-06-15 14:18:57 +00:00
|
|
|
|
│ │
|
2020-12-28 01:18:44 +00:00
|
|
|
|
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
|
|
|
|
|
|
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
|
|
|
|
|
|
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
|
|
|
|
|
|
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
|
|
|
|
|
|
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
|
|
|
|
|
|
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
|
|
|
|
|
|
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
|
|
|
|
|
|
│ PERFORMANCE OF THIS SOFTWARE. │
|
2020-06-15 14:18:57 +00:00
|
|
|
|
╚─────────────────────────────────────────────────────────────────────────────*/
|
|
|
|
|
|
#include "libc/macros.h"
|
|
|
|
|
|
|
|
|
|
|
|
.align 16
|
|
|
|
|
|
stbi__YCbCr_to_RGB_row$sse2:
|
|
|
|
|
|
.leafprologue
|
|
|
|
|
|
.profilable
|
|
|
|
|
|
xor %eax,%eax
|
|
|
|
|
|
cmp $8,%r8d
|
|
|
|
|
|
jl 1f
|
|
|
|
|
|
xor %eax,%eax
|
|
|
|
|
|
movdqa 2f(%rip),%xmm2
|
|
|
|
|
|
movdqa 3f(%rip),%xmm8
|
|
|
|
|
|
movdqa 4f(%rip),%xmm9
|
|
|
|
|
|
movdqa 5f(%rip),%xmm10
|
|
|
|
|
|
movdqa 6f(%rip),%xmm4
|
|
|
|
|
|
movdqa 7f(%rip),%xmm5
|
|
|
|
|
|
.align 16
|
|
|
|
|
|
0: movq (%rsi,%rax),%xmm6
|
|
|
|
|
|
movq (%rcx,%rax),%xmm7
|
|
|
|
|
|
movq (%rdx,%rax),%xmm1
|
|
|
|
|
|
movdqa %xmm2,%xmm0
|
|
|
|
|
|
punpcklbw %xmm6,%xmm0
|
|
|
|
|
|
pxor %xmm2,%xmm7
|
|
|
|
|
|
pxor %xmm6,%xmm6
|
|
|
|
|
|
punpcklbw %xmm7,%xmm6
|
|
|
|
|
|
pxor %xmm2,%xmm1
|
|
|
|
|
|
pxor %xmm3,%xmm3
|
|
|
|
|
|
punpcklbw %xmm1,%xmm3
|
|
|
|
|
|
psrlw $4,%xmm0
|
|
|
|
|
|
movdqa %xmm6,%xmm7
|
|
|
|
|
|
pmulhw %xmm8,%xmm7
|
|
|
|
|
|
movdqa %xmm3,%xmm1
|
|
|
|
|
|
pmulhw %xmm9,%xmm1
|
|
|
|
|
|
pmulhw %xmm10,%xmm3
|
|
|
|
|
|
pmulhw %xmm4,%xmm6
|
|
|
|
|
|
paddw %xmm1,%xmm6
|
|
|
|
|
|
paddw %xmm0,%xmm7
|
|
|
|
|
|
paddw %xmm0,%xmm3
|
|
|
|
|
|
paddw %xmm0,%xmm6
|
|
|
|
|
|
psraw $4,%xmm7
|
|
|
|
|
|
psraw $4,%xmm3
|
|
|
|
|
|
packuswb %xmm3,%xmm7
|
|
|
|
|
|
psraw $4,%xmm6
|
|
|
|
|
|
packuswb %xmm5,%xmm6
|
|
|
|
|
|
movdqa %xmm7,%xmm0
|
|
|
|
|
|
punpcklbw %xmm6,%xmm0
|
|
|
|
|
|
punpckhbw %xmm6,%xmm7
|
|
|
|
|
|
movdqa %xmm0,%xmm1
|
|
|
|
|
|
punpcklwd %xmm7,%xmm1
|
|
|
|
|
|
punpckhwd %xmm7,%xmm0
|
|
|
|
|
|
movdqu %xmm1,(%rdi,%rax,4)
|
|
|
|
|
|
movdqu %xmm0,16(%rdi,%rax,4)
|
|
|
|
|
|
add $8,%rax
|
|
|
|
|
|
lea 7(%rax),%r9d
|
|
|
|
|
|
cmp %r8d,%r9d
|
|
|
|
|
|
jl 0b
|
|
|
|
|
|
1: .leafepilogue
|
|
|
|
|
|
.endfn stbi__YCbCr_to_RGB_row$sse2,globl
|
|
|
|
|
|
|
|
|
|
|
|
.rodata.cst16
|
|
|
|
|
|
2: .byte 128,128,128,128,128,128,128,128
|
|
|
|
|
|
.zero 8
|
|
|
|
|
|
3: .short 5743,5743,5743,5743,5743,5743,5743,5743
|
|
|
|
|
|
4: .short 64126,64126,64126,64126,64126,64126,64126,64126
|
|
|
|
|
|
5: .short 7258,7258,7258,7258,7258,7258,7258,7258
|
|
|
|
|
|
6: .short 62611,62611,62611,62611,62611,62611,62611,62611
|
|
|
|
|
|
7: .short 255,255,255,255,255,255,255,255
|
|
|
|
|
|
|
|
|
|
|
|
.end
|
|
|
|
|
|
/ These should be better but need to get them to work
|
|
|
|
|
|
3: .short 11485,11485,11485,11485,11485,11485,11485,11485 # J′R m=13 99.964387%
|
|
|
|
|
|
4: .short -11277,-11277,-11277,-11277,-11277,-11277,-11277,-11277 # J′G m=15 99.935941%
|
|
|
|
|
|
5: .short 14516,14516,14516,14516,14516,14516,14516,14516 # J′B m=13 99.947219%
|
|
|
|
|
|
6: .short -23401,-23401,-23401,-23401,-23401,-23401,-23401,-23401 # J′G m=15 99.935941%
|
|
|
|
|
|
7: .short 255,255,255,255,255,255,255,255
|
