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axmol/external/jpeg/simd/i386/jdsample-avx2.asm

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2020-11-16 14:47:43 +08:00
;
; jdsample.asm - upsampling (AVX2)
;
; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
; Copyright (C) 2015, Intel Corporation.
; Copyright (C) 2016, D. R. Commander.
;
; Based on the x86 SIMD extension for IJG JPEG library
; Copyright (C) 1999-2006, MIYASAKA Masaru.
; For conditions of distribution and use, see copyright notice in jsimdext.inc
;
; This file should be assembled with NASM (Netwide Assembler),
; can *not* be assembled with Microsoft's MASM or any compatible
; assembler (including Borland's Turbo Assembler).
; NASM is available from http://nasm.sourceforge.net/ or
; http://sourceforge.net/project/showfiles.php?group_id=6208
%include "jsimdext.inc"
; --------------------------------------------------------------------------
SECTION SEG_CONST
alignz 32
GLOBAL_DATA(jconst_fancy_upsample_avx2)
EXTN(jconst_fancy_upsample_avx2):
PW_ONE times 16 dw 1
PW_TWO times 16 dw 2
PW_THREE times 16 dw 3
PW_SEVEN times 16 dw 7
PW_EIGHT times 16 dw 8
alignz 32
; --------------------------------------------------------------------------
SECTION SEG_TEXT
BITS 32
;
; Fancy processing for the common case of 2:1 horizontal and 1:1 vertical.
;
; The upsampling algorithm is linear interpolation between pixel centers,
; also known as a "triangle filter". This is a good compromise between
; speed and visual quality. The centers of the output pixels are 1/4 and 3/4
; of the way between input pixel centers.
;
; GLOBAL(void)
; jsimd_h2v1_fancy_upsample_avx2(int max_v_samp_factor,
; JDIMENSION downsampled_width,
; JSAMPARRAY input_data,
; JSAMPARRAY *output_data_ptr);
;
%define max_v_samp(b) (b) + 8 ; int max_v_samp_factor
%define downsamp_width(b) (b) + 12 ; JDIMENSION downsampled_width
%define input_data(b) (b) + 16 ; JSAMPARRAY input_data
%define output_data_ptr(b) (b) + 20 ; JSAMPARRAY *output_data_ptr
align 32
GLOBAL_FUNCTION(jsimd_h2v1_fancy_upsample_avx2)
EXTN(jsimd_h2v1_fancy_upsample_avx2):
push ebp
mov ebp, esp
pushpic ebx
; push ecx ; need not be preserved
; push edx ; need not be preserved
push esi
push edi
get_GOT ebx ; get GOT address
mov eax, JDIMENSION [downsamp_width(ebp)] ; colctr
test eax, eax
jz near .return
mov ecx, INT [max_v_samp(ebp)] ; rowctr
test ecx, ecx
jz near .return
mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
mov edi, POINTER [output_data_ptr(ebp)]
mov edi, JSAMPARRAY [edi] ; output_data
alignx 16, 7
.rowloop:
push eax ; colctr
push edi
push esi
mov esi, JSAMPROW [esi] ; inptr
mov edi, JSAMPROW [edi] ; outptr
test eax, SIZEOF_YMMWORD-1
jz short .skip
mov dl, JSAMPLE [esi+(eax-1)*SIZEOF_JSAMPLE]
mov JSAMPLE [esi+eax*SIZEOF_JSAMPLE], dl ; insert a dummy sample
.skip:
vpxor ymm0, ymm0, ymm0 ; ymm0=(all 0's)
vpcmpeqb xmm7, xmm7, xmm7
vpsrldq xmm7, xmm7, (SIZEOF_XMMWORD-1) ; (ff -- -- -- ... -- --) LSB is ff
vpand ymm7, ymm7, YMMWORD [esi+0*SIZEOF_YMMWORD]
add eax, byte SIZEOF_YMMWORD-1
and eax, byte -SIZEOF_YMMWORD
cmp eax, byte SIZEOF_YMMWORD
ja short .columnloop
alignx 16, 7
.columnloop_last:
vpcmpeqb xmm6, xmm6, xmm6
vpslldq xmm6, xmm6, (SIZEOF_XMMWORD-1)
vperm2i128 ymm6, ymm6, ymm6, 1 ; (---- ---- ... ---- ---- ff) MSB is ff
vpand ymm6, ymm6, YMMWORD [esi+0*SIZEOF_YMMWORD]
jmp short .upsample
alignx 16, 7
.columnloop:
vmovdqu ymm6, YMMWORD [esi+1*SIZEOF_YMMWORD]
vperm2i128 ymm6, ymm0, ymm6, 0x20
vpslldq ymm6, ymm6, 15
.upsample:
vmovdqu ymm1, YMMWORD [esi+0*SIZEOF_YMMWORD] ; ymm1=( 0 1 2 ... 29 30 31)
vperm2i128 ymm2, ymm0, ymm1, 0x20
vpalignr ymm2, ymm1, ymm2, 15 ; ymm2=(-- 0 1 ... 28 29 30)
vperm2i128 ymm4, ymm0, ymm1, 0x03
vpalignr ymm3, ymm4, ymm1, 1 ; ymm3=( 1 2 3 ... 30 31 --)
vpor ymm2, ymm2, ymm7 ; ymm2=(-1 0 1 ... 28 29 30)
vpor ymm3, ymm3, ymm6 ; ymm3=( 1 2 3 ... 30 31 32)
vpsrldq ymm7, ymm4, (SIZEOF_XMMWORD-1) ; ymm7=(31 -- -- ... -- -- --)
vpunpckhbw ymm4, ymm1, ymm0 ; ymm4=( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm5, ymm1, ymm0 ; ymm5=( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm1, ymm5, ymm4, 0x20 ; ymm1=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm4, ymm5, ymm4, 0x31 ; ymm4=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpunpckhbw ymm5, ymm2, ymm0 ; ymm5=( 7 8 9 10 11 12 13 14 23 24 25 26 27 28 29 30)
vpunpcklbw ymm6, ymm2, ymm0 ; ymm6=(-1 0 1 2 3 4 5 6 15 16 17 18 19 20 21 22)
vperm2i128 ymm2, ymm6, ymm5, 0x20 ; ymm2=(-1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14)
vperm2i128 ymm5, ymm6, ymm5, 0x31 ; ymm5=(15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30)
vpunpckhbw ymm6, ymm3, ymm0 ; ymm6=( 1 2 3 4 5 6 7 8 17 18 19 20 21 22 23 24)
vpunpcklbw ymm0, ymm3, ymm0 ; ymm0=( 9 10 11 12 13 14 15 16 25 26 27 28 29 30 31 32)
vperm2i128 ymm3, ymm0, ymm6, 0x20 ; ymm3=( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16)
vperm2i128 ymm6, ymm0, ymm6, 0x31 ; ymm6=(17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32)
vpxor ymm0, ymm0, ymm0 ; ymm0=(all 0's)
vpmullw ymm1, ymm1, [GOTOFF(ebx,PW_THREE)]
vpmullw ymm4, ymm4, [GOTOFF(ebx,PW_THREE)]
vpaddw ymm2, ymm2, [GOTOFF(ebx,PW_ONE)]
vpaddw ymm5, ymm5, [GOTOFF(ebx,PW_ONE)]
vpaddw ymm3, ymm3, [GOTOFF(ebx,PW_TWO)]
vpaddw ymm6, ymm6, [GOTOFF(ebx,PW_TWO)]
vpaddw ymm2, ymm2, ymm1
vpaddw ymm5, ymm5, ymm4
vpsrlw ymm2, ymm2, 2 ; ymm2=OutLE=( 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30)
vpsrlw ymm5, ymm5, 2 ; ymm5=OutHE=(32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62)
vpaddw ymm3, ymm3, ymm1
vpaddw ymm6, ymm6, ymm4
vpsrlw ymm3, ymm3, 2 ; ymm3=OutLO=( 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31)
vpsrlw ymm6, ymm6, 2 ; ymm6=OutHO=(33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63)
vpsllw ymm3, ymm3, BYTE_BIT
vpsllw ymm6, ymm6, BYTE_BIT
vpor ymm2, ymm2, ymm3 ; ymm2=OutL=( 0 1 2 ... 29 30 31)
vpor ymm5, ymm5, ymm6 ; ymm5=OutH=(32 33 34 ... 61 62 63)
vmovdqu YMMWORD [edi+0*SIZEOF_YMMWORD], ymm2
vmovdqu YMMWORD [edi+1*SIZEOF_YMMWORD], ymm5
sub eax, byte SIZEOF_YMMWORD
add esi, byte 1*SIZEOF_YMMWORD ; inptr
add edi, byte 2*SIZEOF_YMMWORD ; outptr
cmp eax, byte SIZEOF_YMMWORD
ja near .columnloop
test eax, eax
jnz near .columnloop_last
pop esi
pop edi
pop eax
add esi, byte SIZEOF_JSAMPROW ; input_data
add edi, byte SIZEOF_JSAMPROW ; output_data
dec ecx ; rowctr
jg near .rowloop
.return:
vzeroupper
pop edi
pop esi
; pop edx ; need not be preserved
; pop ecx ; need not be preserved
poppic ebx
pop ebp
ret
; --------------------------------------------------------------------------
;
; Fancy processing for the common case of 2:1 horizontal and 2:1 vertical.
; Again a triangle filter; see comments for h2v1 case, above.
;
; GLOBAL(void)
; jsimd_h2v2_fancy_upsample_avx2(int max_v_samp_factor,
; JDIMENSION downsampled_width,
; JSAMPARRAY input_data,
; JSAMPARRAY *output_data_ptr);
;
%define max_v_samp(b) (b) + 8 ; int max_v_samp_factor
%define downsamp_width(b) (b) + 12 ; JDIMENSION downsampled_width
%define input_data(b) (b) + 16 ; JSAMPARRAY input_data
%define output_data_ptr(b) (b) + 20 ; JSAMPARRAY *output_data_ptr
%define original_ebp ebp + 0
%define wk(i) ebp - (WK_NUM - (i)) * SIZEOF_YMMWORD
; ymmword wk[WK_NUM]
%define WK_NUM 4
%define gotptr wk(0) - SIZEOF_POINTER ; void *gotptr
align 32
GLOBAL_FUNCTION(jsimd_h2v2_fancy_upsample_avx2)
EXTN(jsimd_h2v2_fancy_upsample_avx2):
push ebp
mov eax, esp ; eax = original ebp
sub esp, byte 4
and esp, byte (-SIZEOF_YMMWORD) ; align to 256 bits
mov [esp], eax
mov ebp, esp ; ebp = aligned ebp
lea esp, [wk(0)]
pushpic eax ; make a room for GOT address
push ebx
; push ecx ; need not be preserved
; push edx ; need not be preserved
push esi
push edi
get_GOT ebx ; get GOT address
movpic POINTER [gotptr], ebx ; save GOT address
mov edx, eax ; edx = original ebp
mov eax, JDIMENSION [downsamp_width(edx)] ; colctr
test eax, eax
jz near .return
mov ecx, INT [max_v_samp(edx)] ; rowctr
test ecx, ecx
jz near .return
mov esi, JSAMPARRAY [input_data(edx)] ; input_data
mov edi, POINTER [output_data_ptr(edx)]
mov edi, JSAMPARRAY [edi] ; output_data
alignx 16, 7
.rowloop:
push eax ; colctr
push ecx
push edi
push esi
mov ecx, JSAMPROW [esi-1*SIZEOF_JSAMPROW] ; inptr1(above)
mov ebx, JSAMPROW [esi+0*SIZEOF_JSAMPROW] ; inptr0
mov esi, JSAMPROW [esi+1*SIZEOF_JSAMPROW] ; inptr1(below)
mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] ; outptr0
mov edi, JSAMPROW [edi+1*SIZEOF_JSAMPROW] ; outptr1
test eax, SIZEOF_YMMWORD-1
jz short .skip
push edx
mov dl, JSAMPLE [ecx+(eax-1)*SIZEOF_JSAMPLE]
mov JSAMPLE [ecx+eax*SIZEOF_JSAMPLE], dl
mov dl, JSAMPLE [ebx+(eax-1)*SIZEOF_JSAMPLE]
mov JSAMPLE [ebx+eax*SIZEOF_JSAMPLE], dl
mov dl, JSAMPLE [esi+(eax-1)*SIZEOF_JSAMPLE]
mov JSAMPLE [esi+eax*SIZEOF_JSAMPLE], dl ; insert a dummy sample
pop edx
.skip:
; -- process the first column block
vmovdqu ymm0, YMMWORD [ebx+0*SIZEOF_YMMWORD] ; ymm0=row[ 0][0]
vmovdqu ymm1, YMMWORD [ecx+0*SIZEOF_YMMWORD] ; ymm1=row[-1][0]
vmovdqu ymm2, YMMWORD [esi+0*SIZEOF_YMMWORD] ; ymm2=row[+1][0]
pushpic ebx
movpic ebx, POINTER [gotptr] ; load GOT address
vpxor ymm3, ymm3, ymm3 ; ymm3=(all 0's)
vpunpckhbw ymm4, ymm0, ymm3 ; ymm4=row[ 0]( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm5, ymm0, ymm3 ; ymm5=row[ 0]( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm0, ymm5, ymm4, 0x20 ; ymm0=row[ 0]( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm4, ymm5, ymm4, 0x31 ; ymm4=row[ 0](16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpunpckhbw ymm5, ymm1, ymm3 ; ymm5=row[-1]( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm6, ymm1, ymm3 ; ymm6=row[-1]( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm1, ymm6, ymm5, 0x20 ; ymm1=row[-1]( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm5, ymm6, ymm5, 0x31 ; ymm5=row[-1](16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpunpckhbw ymm6, ymm2, ymm3 ; ymm6=row[+1]( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm3, ymm2, ymm3 ; ymm3=row[+1]( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm2, ymm3, ymm6, 0x20 ; ymm2=row[+1]( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm6, ymm3, ymm6, 0x31 ; ymm6=row[+1](16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpmullw ymm0, ymm0, [GOTOFF(ebx,PW_THREE)]
vpmullw ymm4, ymm4, [GOTOFF(ebx,PW_THREE)]
vpcmpeqb xmm7, xmm7, xmm7
vpsrldq xmm7, xmm7, (SIZEOF_XMMWORD-2) ; (ffff ---- ---- ... ---- ----) LSB is ffff
vpaddw ymm1, ymm1, ymm0 ; ymm1=Int0L=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vpaddw ymm5, ymm5, ymm4 ; ymm5=Int0H=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpaddw ymm2, ymm2, ymm0 ; ymm2=Int1L=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vpaddw ymm6, ymm6, ymm4 ; ymm6=Int1H=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vmovdqu YMMWORD [edx+0*SIZEOF_YMMWORD], ymm1 ; temporarily save
vmovdqu YMMWORD [edx+1*SIZEOF_YMMWORD], ymm5 ; the intermediate data
vmovdqu YMMWORD [edi+0*SIZEOF_YMMWORD], ymm2
vmovdqu YMMWORD [edi+1*SIZEOF_YMMWORD], ymm6
vpand ymm1, ymm1, ymm7 ; ymm1=( 0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --)
vpand ymm2, ymm2, ymm7 ; ymm2=( 0 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --)
vmovdqa YMMWORD [wk(0)], ymm1
vmovdqa YMMWORD [wk(1)], ymm2
poppic ebx
add eax, byte SIZEOF_YMMWORD-1
and eax, byte -SIZEOF_YMMWORD
cmp eax, byte SIZEOF_YMMWORD
ja short .columnloop
alignx 16, 7
.columnloop_last:
; -- process the last column block
pushpic ebx
movpic ebx, POINTER [gotptr] ; load GOT address
vpcmpeqb xmm1, xmm1, xmm1
vpslldq xmm1, xmm1, (SIZEOF_XMMWORD-2)
vperm2i128 ymm1, ymm1, ymm1, 1 ; (---- ---- ... ---- ---- ffff) MSB is ffff
vpand ymm2, ymm1, YMMWORD [edi+1*SIZEOF_YMMWORD]
vpand ymm1, ymm1, YMMWORD [edx+1*SIZEOF_YMMWORD]
vmovdqa YMMWORD [wk(2)], ymm1 ; ymm1=(-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 31)
vmovdqa YMMWORD [wk(3)], ymm2 ; ymm2=(-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 31)
jmp near .upsample
alignx 16, 7
.columnloop:
; -- process the next column block
vmovdqu ymm0, YMMWORD [ebx+1*SIZEOF_YMMWORD] ; ymm0=row[ 0][1]
vmovdqu ymm1, YMMWORD [ecx+1*SIZEOF_YMMWORD] ; ymm1=row[-1][1]
vmovdqu ymm2, YMMWORD [esi+1*SIZEOF_YMMWORD] ; ymm2=row[+1][1]
pushpic ebx
movpic ebx, POINTER [gotptr] ; load GOT address
vpxor ymm3, ymm3, ymm3 ; ymm3=(all 0's)
vpunpckhbw ymm4, ymm0, ymm3 ; ymm4=row[ 0]( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm5, ymm0, ymm3 ; ymm5=row[ 0]( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm0, ymm5, ymm4, 0x20 ; ymm0=row[ 0]( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm4, ymm5, ymm4, 0x31 ; ymm4=row[ 0](16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpunpckhbw ymm5, ymm1, ymm3 ; ymm5=row[-1]( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm6, ymm1, ymm3 ; ymm6=row[-1]( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm1, ymm6, ymm5, 0x20 ; ymm1=row[-1]( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm5, ymm6, ymm5, 0x31 ; ymm5=row[-1](16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpunpckhbw ymm6, ymm2, ymm3 ; ymm6=row[+1]( 8 9 10 11 12 13 14 15 24 25 26 27 28 29 30 31)
vpunpcklbw ymm7, ymm2, ymm3 ; ymm7=row[+1]( 0 1 2 3 4 5 6 7 16 17 18 19 20 21 22 23)
vperm2i128 ymm2, ymm7, ymm6, 0x20 ; ymm2=row[+1]( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vperm2i128 ymm6, ymm7, ymm6, 0x31 ; ymm6=row[+1](16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpmullw ymm0, ymm0, [GOTOFF(ebx,PW_THREE)]
vpmullw ymm4, ymm4, [GOTOFF(ebx,PW_THREE)]
vpaddw ymm1, ymm1, ymm0 ; ymm1=Int0L=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vpaddw ymm5, ymm5, ymm4 ; ymm5=Int0H=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpaddw ymm2, ymm2, ymm0 ; ymm2=Int1L=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vpaddw ymm6, ymm6, ymm4 ; ymm6=Int1H=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vmovdqu YMMWORD [edx+2*SIZEOF_YMMWORD], ymm1 ; temporarily save
vmovdqu YMMWORD [edx+3*SIZEOF_YMMWORD], ymm5 ; the intermediate data
vmovdqu YMMWORD [edi+2*SIZEOF_YMMWORD], ymm2
vmovdqu YMMWORD [edi+3*SIZEOF_YMMWORD], ymm6
vperm2i128 ymm1, ymm3, ymm1, 0x20
vpslldq ymm1, ymm1, 14 ; ymm1=(-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0)
vperm2i128 ymm2, ymm3, ymm2, 0x20
vpslldq ymm2, ymm2, 14 ; ymm2=(-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 0)
vmovdqa YMMWORD [wk(2)], ymm1
vmovdqa YMMWORD [wk(3)], ymm2
.upsample:
; -- process the upper row
vmovdqu ymm7, YMMWORD [edx+0*SIZEOF_YMMWORD] ; ymm7=Int0L=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vmovdqu ymm3, YMMWORD [edx+1*SIZEOF_YMMWORD] ; ymm3=Int0H=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpxor ymm1, ymm1, ymm1 ; ymm1=(all 0's)
vperm2i128 ymm0, ymm1, ymm7, 0x03
vpalignr ymm0, ymm0, ymm7, 2 ; ymm0=( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 --)
vperm2i128 ymm4, ymm1, ymm3, 0x20
vpslldq ymm4, ymm4, 14 ; ymm4=(-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 16)
vperm2i128 ymm5, ymm1, ymm7, 0x03
vpsrldq ymm5, ymm5, 14 ; ymm5=(15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --)
vperm2i128 ymm6, ymm1, ymm3, 0x20
vpalignr ymm6, ymm3, ymm6, 14 ; ymm6=(-- 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30)
vpor ymm0, ymm0, ymm4 ; ymm0=( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16)
vpor ymm5, ymm5, ymm6 ; ymm5=(15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30)
vperm2i128 ymm2, ymm1, ymm3, 0x03
vpalignr ymm2, ymm2, ymm3, 2 ; ymm2=(17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --)
vperm2i128 ymm4, ymm1, ymm3, 0x03
vpsrldq ymm4, ymm4, 14 ; ymm4=(31 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --)
vperm2i128 ymm1, ymm1, ymm7, 0x20
vpalignr ymm1, ymm7, ymm1, 14 ; ymm1=(-- 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14)
vpor ymm1, ymm1, YMMWORD [wk(0)] ; ymm1=(-1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14)
vpor ymm2, ymm2, YMMWORD [wk(2)] ; ymm2=(17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32)
vmovdqa YMMWORD [wk(0)], ymm4
vpmullw ymm7, ymm7, [GOTOFF(ebx,PW_THREE)]
vpmullw ymm3, ymm3, [GOTOFF(ebx,PW_THREE)]
vpaddw ymm1, ymm1, [GOTOFF(ebx,PW_EIGHT)]
vpaddw ymm5, ymm5, [GOTOFF(ebx,PW_EIGHT)]
vpaddw ymm0, ymm0, [GOTOFF(ebx,PW_SEVEN)]
vpaddw ymm2, [GOTOFF(ebx,PW_SEVEN)]
vpaddw ymm1, ymm1, ymm7
vpaddw ymm5, ymm5, ymm3
vpsrlw ymm1, ymm1, 4 ; ymm1=Out0LE=( 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30)
vpsrlw ymm5, ymm5, 4 ; ymm5=Out0HE=(32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62)
vpaddw ymm0, ymm0, ymm7
vpaddw ymm2, ymm2, ymm3
vpsrlw ymm0, ymm0, 4 ; ymm0=Out0LO=( 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31)
vpsrlw ymm2, ymm2, 4 ; ymm2=Out0HO=(33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63)
vpsllw ymm0, ymm0, BYTE_BIT
vpsllw ymm2, ymm2, BYTE_BIT
vpor ymm1, ymm1, ymm0 ; ymm1=Out0L=( 0 1 2 ... 29 30 31)
vpor ymm5, ymm5, ymm2 ; ymm5=Out0H=(32 33 34 ... 61 62 63)
vmovdqu YMMWORD [edx+0*SIZEOF_YMMWORD], ymm1
vmovdqu YMMWORD [edx+1*SIZEOF_YMMWORD], ymm5
; -- process the lower row
vmovdqu ymm6, YMMWORD [edi+0*SIZEOF_YMMWORD] ; ymm6=Int1L=( 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15)
vmovdqu ymm4, YMMWORD [edi+1*SIZEOF_YMMWORD] ; ymm4=Int1H=(16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31)
vpxor ymm1, ymm1, ymm1 ; ymm1=(all 0's)
vperm2i128 ymm7, ymm1, ymm6, 0x03
vpalignr ymm7, ymm7, ymm6, 2 ; ymm7=( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 --)
vperm2i128 ymm3, ymm1, ymm4, 0x20
vpslldq ymm3, ymm3, 14 ; ymm3=(-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 16)
vperm2i128 ymm0, ymm1, ymm6, 0x03
vpsrldq ymm0, ymm0, 14 ; ymm0=(15 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --)
vperm2i128 ymm2, ymm1, ymm4, 0x20
vpalignr ymm2, ymm4, ymm2, 14 ; ymm2=(-- 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30)
vpor ymm7, ymm7, ymm3 ; ymm7=( 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16)
vpor ymm0, ymm0, ymm2 ; ymm0=(15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30)
vperm2i128 ymm5, ymm1, ymm4, 0x03
vpalignr ymm5, ymm5, ymm4, 2 ; ymm5=(17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 --)
vperm2i128 ymm3, ymm1, ymm4, 0x03
vpsrldq ymm3, ymm3, 14 ; ymm3=(31 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --)
vperm2i128 ymm1, ymm1, ymm6, 0x20
vpalignr ymm1, ymm6, ymm1, 14 ; ymm1=(-- 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14)
vpor ymm1, ymm1, YMMWORD [wk(1)] ; ymm1=(-1 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14)
vpor ymm5, ymm5, YMMWORD [wk(3)] ; ymm5=(17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32)
vmovdqa YMMWORD [wk(1)], ymm3
vpmullw ymm6, ymm6, [GOTOFF(ebx,PW_THREE)]
vpmullw ymm4, ymm4, [GOTOFF(ebx,PW_THREE)]
vpaddw ymm1, ymm1, [GOTOFF(ebx,PW_EIGHT)]
vpaddw ymm0, ymm0, [GOTOFF(ebx,PW_EIGHT)]
vpaddw ymm7, ymm7, [GOTOFF(ebx,PW_SEVEN)]
vpaddw ymm5, ymm5, [GOTOFF(ebx,PW_SEVEN)]
vpaddw ymm1, ymm1, ymm6
vpaddw ymm0, ymm0, ymm4
vpsrlw ymm1, ymm1, 4 ; ymm1=Out1LE=( 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30)
vpsrlw ymm0, ymm0, 4 ; ymm0=Out1HE=(32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62)
vpaddw ymm7, ymm7, ymm6
vpaddw ymm5, ymm5, ymm4
vpsrlw ymm7, ymm7, 4 ; ymm7=Out1LO=( 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31)
vpsrlw ymm5, ymm5, 4 ; ymm5=Out1HO=(33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63)
vpsllw ymm7, ymm7, BYTE_BIT
vpsllw ymm5, ymm5, BYTE_BIT
vpor ymm1, ymm1, ymm7 ; ymm1=Out1L=( 0 1 2 ... 29 30 31)
vpor ymm0, ymm0, ymm5 ; ymm0=Out1H=(32 33 34 ... 61 62 63)
vmovdqu YMMWORD [edi+0*SIZEOF_YMMWORD], ymm1
vmovdqu YMMWORD [edi+1*SIZEOF_YMMWORD], ymm0
poppic ebx
sub eax, byte SIZEOF_YMMWORD
add ecx, byte 1*SIZEOF_YMMWORD ; inptr1(above)
add ebx, byte 1*SIZEOF_YMMWORD ; inptr0
add esi, byte 1*SIZEOF_YMMWORD ; inptr1(below)
add edx, byte 2*SIZEOF_YMMWORD ; outptr0
add edi, byte 2*SIZEOF_YMMWORD ; outptr1
cmp eax, byte SIZEOF_YMMWORD
ja near .columnloop
test eax, eax
jnz near .columnloop_last
pop esi
pop edi
pop ecx
pop eax
add esi, byte 1*SIZEOF_JSAMPROW ; input_data
add edi, byte 2*SIZEOF_JSAMPROW ; output_data
sub ecx, byte 2 ; rowctr
jg near .rowloop
.return:
vzeroupper
pop edi
pop esi
; pop edx ; need not be preserved
; pop ecx ; need not be preserved
pop ebx
mov esp, ebp ; esp <- aligned ebp
pop esp ; esp <- original ebp
pop ebp
ret
; --------------------------------------------------------------------------
;
; Fast processing for the common case of 2:1 horizontal and 1:1 vertical.
; It's still a box filter.
;
; GLOBAL(void)
; jsimd_h2v1_upsample_avx2(int max_v_samp_factor, JDIMENSION output_width,
; JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
;
%define max_v_samp(b) (b) + 8 ; int max_v_samp_factor
%define output_width(b) (b) + 12 ; JDIMENSION output_width
%define input_data(b) (b) + 16 ; JSAMPARRAY input_data
%define output_data_ptr(b) (b) + 20 ; JSAMPARRAY *output_data_ptr
align 32
GLOBAL_FUNCTION(jsimd_h2v1_upsample_avx2)
EXTN(jsimd_h2v1_upsample_avx2):
push ebp
mov ebp, esp
; push ebx ; unused
; push ecx ; need not be preserved
; push edx ; need not be preserved
push esi
push edi
mov edx, JDIMENSION [output_width(ebp)]
add edx, byte (SIZEOF_YMMWORD-1)
and edx, -SIZEOF_YMMWORD
jz short .return
mov ecx, INT [max_v_samp(ebp)] ; rowctr
test ecx, ecx
jz short .return
mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
mov edi, POINTER [output_data_ptr(ebp)]
mov edi, JSAMPARRAY [edi] ; output_data
alignx 16, 7
.rowloop:
push edi
push esi
mov esi, JSAMPROW [esi] ; inptr
mov edi, JSAMPROW [edi] ; outptr
mov eax, edx ; colctr
alignx 16, 7
.columnloop:
cmp eax, byte SIZEOF_YMMWORD
ja near .above_16
vmovdqu xmm0, XMMWORD [esi+0*SIZEOF_YMMWORD]
vpunpckhbw xmm1, xmm0, xmm0
vpunpcklbw xmm0, xmm0, xmm0
vmovdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmm0
vmovdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmm1
jmp short .nextrow
.above_16:
vmovdqu ymm0, YMMWORD [esi+0*SIZEOF_YMMWORD]
vpermq ymm0, ymm0, 0xd8
vpunpckhbw ymm1, ymm0, ymm0
vpunpcklbw ymm0, ymm0, ymm0
vmovdqu YMMWORD [edi+0*SIZEOF_YMMWORD], ymm0
vmovdqu YMMWORD [edi+1*SIZEOF_YMMWORD], ymm1
sub eax, byte 2*SIZEOF_YMMWORD
jz short .nextrow
add esi, byte SIZEOF_YMMWORD ; inptr
add edi, byte 2*SIZEOF_YMMWORD ; outptr
jmp short .columnloop
alignx 16, 7
.nextrow:
pop esi
pop edi
add esi, byte SIZEOF_JSAMPROW ; input_data
add edi, byte SIZEOF_JSAMPROW ; output_data
dec ecx ; rowctr
jg short .rowloop
.return:
vzeroupper
pop edi
pop esi
; pop edx ; need not be preserved
; pop ecx ; need not be preserved
; pop ebx ; unused
pop ebp
ret
; --------------------------------------------------------------------------
;
; Fast processing for the common case of 2:1 horizontal and 2:1 vertical.
; It's still a box filter.
;
; GLOBAL(void)
; jsimd_h2v2_upsample_avx2(int max_v_samp_factor, JDIMENSION output_width,
; JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
;
%define max_v_samp(b) (b) + 8 ; int max_v_samp_factor
%define output_width(b) (b) + 12 ; JDIMENSION output_width
%define input_data(b) (b) + 16 ; JSAMPARRAY input_data
%define output_data_ptr(b) (b) + 20 ; JSAMPARRAY *output_data_ptr
align 32
GLOBAL_FUNCTION(jsimd_h2v2_upsample_avx2)
EXTN(jsimd_h2v2_upsample_avx2):
push ebp
mov ebp, esp
push ebx
; push ecx ; need not be preserved
; push edx ; need not be preserved
push esi
push edi
mov edx, JDIMENSION [output_width(ebp)]
add edx, byte (SIZEOF_YMMWORD-1)
and edx, -SIZEOF_YMMWORD
jz near .return
mov ecx, INT [max_v_samp(ebp)] ; rowctr
test ecx, ecx
jz near .return
mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
mov edi, POINTER [output_data_ptr(ebp)]
mov edi, JSAMPARRAY [edi] ; output_data
alignx 16, 7
.rowloop:
push edi
push esi
mov esi, JSAMPROW [esi] ; inptr
mov ebx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] ; outptr0
mov edi, JSAMPROW [edi+1*SIZEOF_JSAMPROW] ; outptr1
mov eax, edx ; colctr
alignx 16, 7
.columnloop:
cmp eax, byte SIZEOF_YMMWORD
ja short .above_16
vmovdqu xmm0, XMMWORD [esi+0*SIZEOF_XMMWORD]
vpunpckhbw xmm1, xmm0, xmm0
vpunpcklbw xmm0, xmm0, xmm0
vmovdqu XMMWORD [ebx+0*SIZEOF_XMMWORD], xmm0
vmovdqu XMMWORD [ebx+1*SIZEOF_XMMWORD], xmm1
vmovdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmm0
vmovdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmm1
jmp near .nextrow
.above_16:
vmovdqu ymm0, YMMWORD [esi+0*SIZEOF_YMMWORD]
vpermq ymm0, ymm0, 0xd8
vpunpckhbw ymm1, ymm0, ymm0
vpunpcklbw ymm0, ymm0, ymm0
vmovdqu YMMWORD [ebx+0*SIZEOF_YMMWORD], ymm0
vmovdqu YMMWORD [ebx+1*SIZEOF_YMMWORD], ymm1
vmovdqu YMMWORD [edi+0*SIZEOF_YMMWORD], ymm0
vmovdqu YMMWORD [edi+1*SIZEOF_YMMWORD], ymm1
sub eax, byte 2*SIZEOF_YMMWORD
jz short .nextrow
add esi, byte SIZEOF_YMMWORD ; inptr
add ebx, 2*SIZEOF_YMMWORD ; outptr0
add edi, 2*SIZEOF_YMMWORD ; outptr1
jmp short .columnloop
alignx 16, 7
.nextrow:
pop esi
pop edi
add esi, byte 1*SIZEOF_JSAMPROW ; input_data
add edi, byte 2*SIZEOF_JSAMPROW ; output_data
sub ecx, byte 2 ; rowctr
jg near .rowloop
.return:
vzeroupper
pop edi
pop esi
; pop edx ; need not be preserved
; pop ecx ; need not be preserved
pop ebx
pop ebp
ret
; For some reason, the OS X linker does not honor the request to align the
; segment unless we do this.
align 32