;
; jdmrgext.asm - merged upsampling/color conversion (AVX2)
;
; Copyright 2009, 2012 Pierre Ossman <ossman@cendio.se> for Cendio AB
; Copyright (C) 2012, 2016, D. R. Commander.
; Copyright (C) 2015, Intel Corporation.
;
; 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 "jcolsamp.inc"
; --------------------------------------------------------------------------
;
; Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical.
;
; GLOBAL(void)
; jsimd_h2v1_merged_upsample_avx2(JDIMENSION output_width,
; JSAMPIMAGE input_buf,
; JDIMENSION in_row_group_ctr,
; JSAMPARRAY output_buf);
;
%define output_width(b) (b) + 8 ; JDIMENSION output_width
%define input_buf(b) (b) + 12 ; JSAMPIMAGE input_buf
%define in_row_group_ctr(b) (b) + 16 ; JDIMENSION in_row_group_ctr
%define output_buf(b) (b) + 20 ; JSAMPARRAY output_buf
%define original_ebp ebp + 0
%define wk(i) ebp - (WK_NUM - (i)) * SIZEOF_YMMWORD
; ymmword wk[WK_NUM]
%define WK_NUM 3
%define gotptr wk(0) - SIZEOF_POINTER ; void * gotptr
align 32
GLOBAL_FUNCTION(jsimd_h2v1_merged_upsample_avx2)
EXTN(jsimd_h2v1_merged_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 ecx, JDIMENSION [output_width(eax)] ; col
test ecx, ecx
jz near .return
push ecx
mov edi, JSAMPIMAGE [input_buf(eax)]
mov ecx, JDIMENSION [in_row_group_ctr(eax)]
mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
mov edi, JSAMPARRAY [output_buf(eax)]
mov esi, JSAMPROW [esi+ecx*SIZEOF_JSAMPROW] ; inptr0
mov ebx, JSAMPROW [ebx+ecx*SIZEOF_JSAMPROW] ; inptr1
mov edx, JSAMPROW [edx+ecx*SIZEOF_JSAMPROW] ; inptr2
mov edi, JSAMPROW [edi] ; outptr
pop ecx ; col
alignx 16, 7
.columnloop:
movpic eax, POINTER [gotptr] ; load GOT address (eax)
vmovdqu ymm6, YMMWORD [ebx] ; ymm6=Cb(0123456789ABCDEFGHIJKLMNOPQRSTUV)
vmovdqu ymm7, YMMWORD [edx] ; ymm7=Cr(0123456789ABCDEFGHIJKLMNOPQRSTUV)
vpxor ymm1, ymm1, ymm1 ; ymm1=(all 0's)
vpcmpeqw ymm3, ymm3, ymm3
vpsllw ymm3, ymm3, 7 ; ymm3={0xFF80 0xFF80 0xFF80 0xFF80 ..}
vpermq ymm6, ymm6, 0xd8 ; ymm6=Cb(01234567GHIJKLMN89ABCDEFOPQRSTUV)
vpermq ymm7, ymm7, 0xd8 ; ymm7=Cr(01234567GHIJKLMN89ABCDEFOPQRSTUV)
vpunpcklbw ymm4, ymm6, ymm1 ; ymm4=Cb(0123456789ABCDEF)=CbL
vpunpckhbw ymm6, ymm6, ymm1 ; ymm6=Cb(GHIJKLMNOPQRSTUV)=CbH
vpunpcklbw ymm0, ymm7, ymm1 ; ymm0=Cr(0123456789ABCDEF)=CrL
vpunpckhbw ymm7, ymm7, ymm1 ; ymm7=Cr(GHIJKLMNOPQRSTUV)=CrH
vpaddw ymm5, ymm6, ymm3
vpaddw ymm2, ymm4, ymm3
vpaddw ymm1, ymm7, ymm3
vpaddw ymm3, ymm0, ymm3
; (Original)
; R = Y + 1.40200 * Cr
; G = Y - 0.34414 * Cb - 0.71414 * Cr
; B = Y + 1.77200 * Cb
;
; (This implementation)
; R = Y + 0.40200 * Cr + Cr
; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr
; B = Y - 0.22800 * Cb + Cb + Cb
vpaddw ymm6, ymm5, ymm5 ; ymm6=2*CbH
vpaddw ymm4, ymm2, ymm2 ; ymm4=2*CbL
vpaddw ymm7, ymm1, ymm1 ; ymm7=2*CrH
vpaddw ymm0, ymm3, ymm3 ; ymm0=2*CrL
vpmulhw ymm6, ymm6, [GOTOFF(eax,PW_MF0228)] ; ymm6=(2*CbH * -FIX(0.22800))
vpmulhw ymm4, ymm4, [GOTOFF(eax,PW_MF0228)] ; ymm4=(2*CbL * -FIX(0.22800))
vpmulhw ymm7, ymm7, [GOTOFF(eax,PW_F0402)] ; ymm7=(2*CrH * FIX(0.40200))
vpmulhw ymm0, ymm0, [GOTOFF(eax,PW_F0402)] ; ymm0=(2*CrL * FIX(0.40200))
vpaddw ymm6, ymm6, [GOTOFF(eax,PW_ONE)]
vpaddw ymm4, ymm4, [GOTOFF(eax,PW_ONE)]
vpsraw ymm6, ymm6, 1 ; ymm6=(CbH * -FIX(0.22800))
vpsraw ymm4, ymm4, 1 ; ymm4=(CbL * -FIX(0.22800))
vpaddw ymm7, ymm7, [GOTOFF(eax,PW_ONE)]
vpaddw ymm0, ymm0, [GOTOFF(eax,PW_ONE)]
vpsraw ymm7, ymm7, 1 ; ymm7=(CrH * FIX(0.40200))
vpsraw ymm0, ymm0, 1 ; ymm0=(CrL * FIX(0.40200))
vpaddw ymm6, ymm6, ymm5
vpaddw ymm4, ymm4, ymm2
vpaddw ymm6, ymm6, ymm5 ; ymm6=(CbH * FIX(1.77200))=(B-Y)H
vpaddw ymm4, ymm4, ymm2 ; ymm4=(CbL * FIX(1.77200))=(B-Y)L
vpaddw ymm7, ymm7, ymm1 ; ymm7=(CrH * FIX(1.40200))=(R-Y)H
vpaddw ymm0, ymm0, ymm3 ; ymm0=(CrL * FIX(1.40200))=(R-Y)L
vmovdqa YMMWORD [wk(0)], ymm6 ; wk(0)=(B-Y)H
vmovdqa YMMWORD [wk(1)], ymm7 ; wk(1)=(R-Y)H
vpunpckhwd ymm6, ymm5, ymm1
vpunpcklwd ymm5, ymm5, ymm1
vpmaddwd ymm5, ymm5, [GOTOFF(eax,PW_MF0344_F0285)]
vpmaddwd ymm6, ymm6, [GOTOFF(eax,PW_MF0344_F0285)]
vpunpckhwd ymm7, ymm2, ymm3
vpunpcklwd ymm2, ymm2, ymm3
vpmaddwd ymm2, ymm2, [GOTOFF(eax,PW_MF0344_F0285)]
vpmaddwd ymm7, ymm7, [GOTOFF(eax,PW_MF0344_F0285)]
vpaddd ymm5, ymm5, [GOTOFF(eax,PD_ONEHALF)]
vpaddd ymm6, ymm6, [GOTOFF(eax,PD_ONEHALF)]
vpsrad ymm5, ymm5, SCALEBITS
vpsrad ymm6, ymm6, SCALEBITS
vpaddd ymm2, ymm2, [GOTOFF(eax,PD_ONEHALF)]
vpaddd ymm7, ymm7, [GOTOFF(eax,PD_ONEHALF)]
vpsrad ymm2, ymm2, SCALEBITS
vpsrad ymm7, ymm7, SCALEBITS
vpackssdw ymm5, ymm5, ymm6 ; ymm5=CbH*-FIX(0.344)+CrH*FIX(0.285)
vpackssdw ymm2, ymm2, ymm7 ; ymm2=CbL*-FIX(0.344)+CrL*FIX(0.285)
vpsubw ymm5, ymm5, ymm1 ; ymm5=CbH*-FIX(0.344)+CrH*-FIX(0.714)=(G-Y)H
vpsubw ymm2, ymm2, ymm3 ; ymm2=CbL*-FIX(0.344)+CrL*-FIX(0.714)=(G-Y)L
vmovdqa YMMWORD [wk(2)], ymm5 ; wk(2)=(G-Y)H
mov al, 2 ; Yctr
jmp short .Yloop_1st
alignx 16, 7
.Yloop_2nd:
vmovdqa ymm0, YMMWORD [wk(1)] ; ymm0=(R-Y)H
vmovdqa ymm2, YMMWORD [wk(2)] ; ymm2=(G-Y)H
vmovdqa ymm4, YMMWORD [wk(0)] ; ymm4=(B-Y)H
alignx 16, 7
.Yloop_1st:
vmovdqu ymm7, YMMWORD [esi] ; ymm7=Y(0123456789ABCDEFGHIJKLMNOPQRSTUV)
vpcmpeqw ymm6, ymm6, ymm6
vpsrlw ymm6, ymm6, BYTE_BIT ; ymm6={0xFF 0x00 0xFF 0x00 ..}
vpand ymm6, ymm6, ymm7 ; ymm6=Y(02468ACEGIKMOQSU)=YE
vpsrlw ymm7, ymm7, BYTE_BIT ; ymm7=Y(13579BDFHJLNPRTV)=YO
vmovdqa ymm1, ymm0 ; ymm1=ymm0=(R-Y)(L/H)
vmovdqa ymm3, ymm2 ; ymm3=ymm2=(G-Y)(L/H)
vmovdqa ymm5, ymm4 ; ymm5=ymm4=(B-Y)(L/H)
vpaddw ymm0, ymm0, ymm6 ; ymm0=((R-Y)+YE)=RE=R(02468ACEGIKMOQSU)
vpaddw ymm1, ymm1, ymm7 ; ymm1=((R-Y)+YO)=RO=R(13579BDFHJLNPRTV)
vpackuswb ymm0, ymm0, ymm0 ; ymm0=R(02468ACE********GIKMOQSU********)
vpackuswb ymm1, ymm1, ymm1 ; ymm1=R(13579BDF********HJLNPRTV********)
vpaddw ymm2, ymm2, ymm6 ; ymm2=((G-Y)+YE)=GE=G(02468ACEGIKMOQSU)
vpaddw ymm3, ymm3, ymm7 ; ymm3=((G-Y)+YO)=GO=G(13579BDFHJLNPRTV)
vpackuswb ymm2, ymm2, ymm2 ; ymm2=G(02468ACE********GIKMOQSU********)
vpackuswb ymm3, ymm3, ymm3 ; ymm3=G(13579BDF********HJLNPRTV********)
vpaddw ymm4, ymm4, ymm6 ; ymm4=((B-Y)+YE)=BE=B(02468ACEGIKMOQSU)
vpaddw ymm5, ymm5, ymm7 ; ymm5=((B-Y)+YO)=BO=B(13579BDFHJLNPRTV)
vpackuswb ymm4, ymm4, ymm4 ; ymm4=B(02468ACE********GIKMOQSU********)
vpackuswb ymm5, ymm5, ymm5 ; ymm5=B(13579BDF********HJLNPRTV********)
%if RGB_PIXELSIZE == 3 ; ---------------
; ymmA=(00 02 04 06 08 0A 0C 0E ** 0G 0I 0K 0M 0O 0Q 0S 0U **)
; ymmB=(01 03 05 07 09 0B 0D 0F ** 0H 0J 0L 0N 0P 0R 0T 0V **)
; ymmC=(10 12 14 16 18 1A 1C 1E ** 1G 1I 1K 1M 1O 1Q 1S 1U **)
; ymmD=(11 13 15 17 19 1B 1D 1F ** 1H 1J 1L 1N 1P 1R 1T 1V **)
; ymmE=(20 22 24 26 28 2A 2C 2E ** 2G 2I 2K 2M 2O 2Q 2S 2U **)
; ymmF=(21 23 25 27 29 2B 2D 2F ** 2H 2J 2L 2N 2P 2R 2T 2V **)
; ymmG=(** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **)
; ymmH=(** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** ** **)
vpunpcklbw ymmA, ymmA, ymmC ; ymmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E
; 0G 1G 0I 1I 0K 1K 0M 1M 0O 1O 0Q 1Q 0S 1S 0U 1U)
vpunpcklbw ymmE, ymmE, ymmB ; ymmE=(20 01 22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F
; 2G 0H 2I 0J 2K 0L 2M 0N 2O 0P 2Q 0R 2S 0T 2U 0V)
vpunpcklbw ymmD, ymmD, ymmF ; ymmD=(11 21 13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F
; 1H 2H 1J 2J 1L 2L 1N 2N 1P 2P 1R 2R 1T 2T 1V 2V)
vpsrldq ymmH, ymmA, 2 ; ymmH=(02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E 0G 1G
; 0I 1I 0K 1K 0M 1M 0O 1O 0Q 1Q 0S 1S 0U 1U -- --)
vpunpckhwd ymmG, ymmA, ymmE ; ymmG=(08 18 28 09 0A 1A 2A 0B 0C 1C 2C 0D 0E 1E 2E 0F
; 0O 1O 2O 0P 0Q 1Q 2Q 0R 0S 1S 2S 0T 0U 1U 2U 0V)
vpunpcklwd ymmA, ymmA, ymmE ; ymmA=(00 10 20 01 02 12 22 03 04 14 24 05 06 16 26 07
; 0G 1G 2G 0H 0I 1I 2I 0J 0K 1K 2K 0L 0M 1M 2M 0N)
vpsrldq ymmE, ymmE, 2 ; ymmE=(22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F 2G 0H
; 2I 0J 2K 0L 2M 0N 2O 0P 2Q 0R 2S 0T 2U 0V -- --)
vpsrldq ymmB, ymmD, 2 ; ymmB=(13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F 1H 2H
; 1J 2J 1L 2L 1N 2N 1P 2P 1R 2R 1T 2T 1V 2V -- --)
vpunpckhwd ymmC, ymmD, ymmH ; ymmC=(19 29 0A 1A 1B 2B 0C 1C 1D 2D 0E 1E 1F 2F 0G 1G
; 1P 2P 0Q 1Q 1R 2R 0S 1S 1T 2T 0U 1U 1V 2V -- --)
vpunpcklwd ymmD, ymmD, ymmH ; ymmD=(11 21 02 12 13 23 04 14 15 25 06 16 17 27 08 18
; 1H 2H 0I 1I 1J 2J 0K 1K 1L 2L 0M 1M 1N 2N 0O 1O)
vpunpckhwd ymmF, ymmE, ymmB ; ymmF=(2A 0B 1B 2B 2C 0D 1D 2D 2E 0F 1F 2F 2G 0H 1H 2H
; 2Q 0R 1R 2R 2S 0T 1T 2T 2U 0V 1V 2V -- -- -- --)
vpunpcklwd ymmE, ymmE, ymmB ; ymmE=(22 03 13 23 24 05 15 25 26 07 17 27 28 09 19 29
; 2I 0J 1J 2J 2K 0L 1L 2L 2M 0N 1N 2N 2O 0P 1P 2P)
vpshufd ymmH, ymmA, 0x4E ; ymmH=(04 14 24 05 06 16 26 07 00 10 20 01 02 12 22 03
; 0K 1K 2K 0L 0M 1M 2M 0N 0G 1G 2G 0H 0I 1I 2I 0J)
vpunpckldq ymmA, ymmA, ymmD ; ymmA=(00 10 20 01 11 21 02 12 02 12 22 03 13 23 04 14
; 0G 1G 2G 0H 1H 2H 0I 1I 0I 1I 2I 0J 1J 2J 0K 1K)
vpunpckhdq ymmD, ymmD, ymmE ; ymmD=(15 25 06 16 26 07 17 27 17 27 08 18 28 09 19 29
; 1L 2L 0M 1M 2M 0N 1N 2N 1N 2N 0O 1O 2O 0P 1P 2P)
vpunpckldq ymmE, ymmE, ymmH ; ymmE=(22 03 13 23 04 14 24 05 24 05 15 25 06 16 26 07
; 2I 0J 1J 2J 0K 1K 2K 0L 2K 0L 1L 2L 0M 1M 2M 0N)
vpshufd ymmH, ymmG, 0x4E ; ymmH=(0C 1C 2C 0D 0E 1E 2E 0F 08 18 28 09 0A 1A 2A 0B
; 0S 1S 2S 0T 0U 1U 2U 0V 0O 1O 2O 0P 0Q 1Q 2Q 0R)
vpunpckldq ymmG, ymmG, ymmC ; ymmG=(08 18 28 09 19 29 0A 1A 0A 1A 2A 0B 1B 2B 0C 1C
; 0O 1O 2O 0P 1P 2P 0Q 1Q 0Q 1Q 2Q 0R 1R 2R 0S 1S)
vpunpckhdq ymmC, ymmC, ymmF ; ymmC=(1D 2D 0E 1E 2E 0F 1F 2F 1F 2F 0G 1G 2G 0H 1H 2H
; 1T 2T 0U 1U 2U 0V 1V 2V 1V 2V -- -- -- -- -- --)
vpunpckldq ymmF, ymmF, ymmH ; ymmF=(2A 0B 1B 2B 0C 1C 2C 0D 2C 0D 1D 2D 0E 1E 2E 0F
; 2Q 0R 1R 2R 0S 1S 2S 0T 2S 0T 1T 2T 0U 1U 2U 0V)
vpunpcklqdq ymmH, ymmA, ymmE ; ymmH=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05
; 0G 1G 2G 0H 1H 2H 0I 1I 2I 0J 1J 2J 0K 1K 2K 0L)
vpunpcklqdq ymmG, ymmD, ymmG ; ymmG=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A
; 1L 2L 0M 1M 2M 0N 1N 2N 0O 1O 2O 0P 1P 2P 0Q 1Q)
vpunpcklqdq ymmC, ymmF, ymmC ; ymmC=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F
; 2Q 0R 1R 2R 0S 1S 2S 0T 1T 2T 0U 1U 2U 0V 1V 2V)
vperm2i128 ymmA, ymmH, ymmG, 0x20 ; ymmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05
; 15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A)
vperm2i128 ymmD, ymmC, ymmH, 0x30 ; ymmD=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F
; 0G 1G 2G 0H 1H 2H 0I 1I 2I 0J 1J 2J 0K 1K 2K 0L)
vperm2i128 ymmF, ymmG, ymmC, 0x31 ; ymmF=(1L 2L 0M 1M 2M 0N 1N 2N 0O 1O 2O 0P 1P 2P 0Q 1Q
; 2Q 0R 1R 2R 0S 1S 2S 0T 1T 2T 0U 1U 2U 0V 1V 2V)
cmp ecx, byte SIZEOF_YMMWORD
jb short .column_st64
test edi, SIZEOF_YMMWORD-1
jnz short .out1
; --(aligned)-------------------
vmovntdq YMMWORD [edi+0*SIZEOF_YMMWORD], ymmA
vmovntdq YMMWORD [edi+1*SIZEOF_YMMWORD], ymmD
vmovntdq YMMWORD [edi+2*SIZEOF_YMMWORD], ymmF
jmp short .out0
.out1: ; --(unaligned)-----------------
vmovdqu YMMWORD [edi+0*SIZEOF_YMMWORD], ymmA
vmovdqu YMMWORD [edi+1*SIZEOF_YMMWORD], ymmD
vmovdqu YMMWORD [edi+2*SIZEOF_YMMWORD], ymmF
.out0:
add edi, byte RGB_PIXELSIZE*SIZEOF_YMMWORD ; outptr
sub ecx, byte SIZEOF_YMMWORD
jz near .endcolumn
add esi, byte SIZEOF_YMMWORD ; inptr0
dec al ; Yctr
jnz near .Yloop_2nd
add ebx, byte SIZEOF_YMMWORD ; inptr1
add edx, byte SIZEOF_YMMWORD ; inptr2
jmp near .columnloop
alignx 16, 7
.column_st64:
lea ecx, [ecx+ecx*2] ; imul ecx, RGB_PIXELSIZE
cmp ecx, byte 2*SIZEOF_YMMWORD
jb short .column_st32
vmovdqu YMMWORD [edi+0*SIZEOF_YMMWORD], ymmA
vmovdqu YMMWORD [edi+1*SIZEOF_YMMWORD], ymmD
add edi, byte 2*SIZEOF_YMMWORD ; outptr
vmovdqa ymmA, ymmF
sub ecx, byte 2*SIZEOF_YMMWORD
jmp short .column_st31
.column_st32:
cmp ecx, byte SIZEOF_YMMWORD
jb short .column_st31
vmovdqu YMMWORD [edi+0*SIZEOF_YMMWORD], ymmA
add edi, byte SIZEOF_YMMWORD ; outptr
vmovdqa ymmA, ymmD
sub ecx, byte SIZEOF_YMMWORD
jmp short .column_st31
.column_st31:
cmp ecx, byte SIZEOF_XMMWORD
jb short .column_st15
vmovdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
add edi, byte SIZEOF_XMMWORD ; outptr
vperm2i128 ymmA, ymmA, ymmA, 1
sub ecx, byte SIZEOF_XMMWORD
.column_st15:
; Store the lower 8 bytes of xmmA to the output when it has enough
; space.
cmp ecx, byte SIZEOF_MMWORD
jb short .column_st7
vmovq XMM_MMWORD [edi], xmmA
add edi, byte SIZEOF_MMWORD
sub ecx, byte SIZEOF_MMWORD
vpsrldq xmmA, xmmA, SIZEOF_MMWORD
.column_st7:
; Store the lower 4 bytes of xmmA to the output when it has enough
; space.
cmp ecx, byte SIZEOF_DWORD
jb short .column_st3
vmovd XMM_DWORD [edi], xmmA
add edi, byte SIZEOF_DWORD
sub ecx, byte SIZEOF_DWORD
vpsrldq xmmA, xmmA, SIZEOF_DWORD
.column_st3:
; Store the lower 2 bytes of eax to the output when it has enough
; space.
vmovd eax, xmmA
cmp ecx, byte SIZEOF_WORD
jb short .column_st1
mov word [edi], ax
add edi, byte SIZEOF_WORD
sub ecx, byte SIZEOF_WORD
shr eax, 16
.column_st1:
; Store the lower 1 byte of eax to the output when it has enough
; space.
test ecx, ecx
jz short .endcolumn
mov byte [edi], al
%else ; RGB_PIXELSIZE == 4 ; -----------
%ifdef RGBX_FILLER_0XFF
vpcmpeqb ymm6, ymm6, ymm6 ; ymm6=XE=X(02468ACE********GIKMOQSU********)
vpcmpeqb ymm7, ymm7, ymm7 ; ymm7=XO=X(13579BDF********HJLNPRTV********)
%else
vpxor ymm6, ymm6, ymm6 ; ymm6=XE=X(02468ACE********GIKMOQSU********)
vpxor ymm7, ymm7, ymm7 ; ymm7=XO=X(13579BDF********HJLNPRTV********)
%endif
; ymmA=(00 02 04 06 08 0A 0C 0E ** 0G 0I 0K 0M 0O 0Q 0S 0U **)
; ymmB=(01 03 05 07 09 0B 0D 0F ** 0H 0J 0L 0N 0P 0R 0T 0V **)
; ymmC=(10 12 14 16 18 1A 1C 1E ** 1G 1I 1K 1M 1O 1Q 1S 1U **)
; ymmD=(11 13 15 17 19 1B 1D 1F ** 1H 1J 1L 1N 1P 1R 1T 1V **)
; ymmE=(20 22 24 26 28 2A 2C 2E ** 2G 2I 2K 2M 2O 2Q 2S 2U **)
; ymmF=(21 23 25 27 29 2B 2D 2F ** 2H 2J 2L 2N 2P 2R 2T 2V **)
; ymmG=(30 32 34 36 38 3A 3C 3E ** 3G 3I 3K 3M 3O 3Q 3S 3U **)
; ymmH=(31 33 35 37 39 3B 3D 3F ** 3H 3J 3L 3N 3P 3R 3T 3V **)
vpunpcklbw ymmA, ymmA, ymmC ; ymmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E
; 0G 1G 0I 1I 0K 1K 0M 1M 0O 1O 0Q 1Q 0S 1S 0U 1U)
vpunpcklbw ymmE, ymmE, ymmG ; ymmE=(20 30 22 32 24 34 26 36 28 38 2A 3A 2C 3C 2E 3E
; 2G 3G 2I 3I 2K 3K 2M 3M 2O 3O 2Q 3Q 2S 3S 2U 3U)
vpunpcklbw ymmB, ymmB, ymmD ; ymmB=(01 11 03 13 05 15 07 17 09 19 0B 1B 0D 1D 0F 1F
; 0H 1H 0J 1J 0L 1L 0N 1N 0P 1P 0R 1R 0T 1T 0V 1V)
vpunpcklbw ymmF, ymmF, ymmH ; ymmF=(21 31 23 33 25 35 27 37 29 39 2B 3B 2D 3D 2F 3F
; 2H 3H 2J 3J 2L 3L 2N 3N 2P 3P 2R 3R 2T 3T 2V 3V)
vpunpckhwd ymmC, ymmA, ymmE ; ymmC=(08 18 28 38 0A 1A 2A 3A 0C 1C 2C 3C 0E 1E 2E 3E
; 0O 1O 2O 3O 0Q 1Q 2Q 3Q 0S 1S 2S 3S 0U 1U 2U 3U)
vpunpcklwd ymmA, ymmA, ymmE ; ymmA=(00 10 20 30 02 12 22 32 04 14 24 34 06 16 26 36
; 0G 1G 2G 3G 0I 1I 2I 3I 0K 1K 2K 3K 0M 1M 2M 3M)
vpunpckhwd ymmG, ymmB, ymmF ; ymmG=(09 19 29 39 0B 1B 2B 3B 0D 1D 2D 3D 0F 1F 2F 3F
; 0P 1P 2P 3P 0R 1R 2R 3R 0T 1T 2T 3T 0V 1V 2V 3V)
vpunpcklwd ymmB, ymmB, ymmF ; ymmB=(01 11 21 31 03 13 23 33 05 15 25 35 07 17 27 37
; 0H 1H 2H 3H 0J 1J 2J 3J 0L 1L 2L 3L 0N 1N 2N 3N)
vpunpckhdq ymmE, ymmA, ymmB ; ymmE=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37
; 0K 1K 2K 3K 0L 1L 2L 3L 0M 1M 2M 3M 0N 1N 2N 3N)
vpunpckldq ymmB, ymmA, ymmB ; ymmB=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33
; 0G 1G 2G 3G 0H 1H 2H 3H 0I 1I 2I 3I 0J 1J 2J 3J)
vpunpckhdq ymmF, ymmC, ymmG ; ymmF=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F
; 0S 1S 2S 3S 0T 1T 2T 3T 0U 1U 2U 3U 0V 1V 2V 3V)
vpunpckldq ymmG, ymmC, ymmG ; ymmG=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B
; 0O 1O 2O 3O 0P 1P 2P 3P 0Q 1Q 2Q 3Q 0R 1R 2R 3R)
vperm2i128 ymmA, ymmB, ymmE, 0x20 ; ymmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33
; 04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37)
vperm2i128 ymmD, ymmG, ymmF, 0x20 ; ymmD=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B
; 0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F)
vperm2i128 ymmC, ymmB, ymmE, 0x31 ; ymmC=(0G 1G 2G 3G 0H 1H 2H 3H 0I 1I 2I 3I 0J 1J 2J 3J
; 0K 1K 2K 3K 0L 1L 2L 3L 0M 1M 2M 3M 0N 1N 2N 3N)
vperm2i128 ymmH, ymmG, ymmF, 0x31 ; ymmH=(0O 1O 2O 3O 0P 1P 2P 3P 0Q 1Q 2Q 3Q 0R 1R 2R 3R
; 0S 1S 2S 3S 0T 1T 2T 3T 0U 1U 2U 3U 0V 1V 2V 3V)
cmp ecx, byte SIZEOF_YMMWORD
jb short .column_st64
test edi, SIZEOF_YMMWORD-1
jnz short .out1
; --(aligned)-------------------
vmovntdq YMMWORD [edi+0*SIZEOF_YMMWORD], ymmA
vmovntdq YMMWORD [edi+1*SIZEOF_YMMWORD], ymmD
vmovntdq YMMWORD [edi+2*SIZEOF_YMMWORD], ymmC
vmovntdq YMMWORD [edi+3*SIZEOF_YMMWORD], ymmH
jmp short .out0
.out1: ; --(unaligned)-----------------
vmovdqu YMMWORD [edi+0*SIZEOF_YMMWORD], ymmA
vmovdqu YMMWORD [edi+1*SIZEOF_YMMWORD], ymmD
vmovdqu YMMWORD [edi+2*SIZEOF_YMMWORD], ymmC
vmovdqu YMMWORD [edi+3*SIZEOF_YMMWORD], ymmH
.out0:
add edi, RGB_PIXELSIZE*SIZEOF_YMMWORD ; outptr
sub ecx, byte SIZEOF_YMMWORD
jz near .endcolumn
add esi, byte SIZEOF_YMMWORD ; inptr0
dec al
jnz near .Yloop_2nd
add ebx, byte SIZEOF_YMMWORD ; inptr1
add edx, byte SIZEOF_YMMWORD ; inptr2
jmp near .columnloop
alignx 16, 7
.column_st64:
cmp ecx, byte SIZEOF_YMMWORD/2
jb short .column_st32
vmovdqu YMMWORD [edi+0*SIZEOF_YMMWORD], ymmA
vmovdqu YMMWORD [edi+1*SIZEOF_YMMWORD], ymmD
add edi, byte 2*SIZEOF_YMMWORD ; outptr
vmovdqa ymmA, ymmC
vmovdqa ymmD, ymmH
sub ecx, byte SIZEOF_YMMWORD/2
.column_st32:
cmp ecx, byte SIZEOF_YMMWORD/4
jb short .column_st16
vmovdqu YMMWORD [edi+0*SIZEOF_YMMWORD], ymmA
add edi, byte SIZEOF_YMMWORD ; outptr
vmovdqa ymmA, ymmD
sub ecx, byte SIZEOF_YMMWORD/4
.column_st16:
cmp ecx, byte SIZEOF_YMMWORD/8
jb short .column_st15
vmovdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
add edi, byte SIZEOF_XMMWORD ; outptr
vperm2i128 ymmA, ymmA, ymmA, 1
sub ecx, byte SIZEOF_YMMWORD/8
.column_st15:
; Store two pixels (8 bytes) of ymmA to the output when it has enough
; space.
cmp ecx, byte SIZEOF_YMMWORD/16
jb short .column_st7
vmovq MMWORD [edi], xmmA
add edi, byte SIZEOF_YMMWORD/16*4
sub ecx, byte SIZEOF_YMMWORD/16
vpsrldq xmmA, SIZEOF_YMMWORD/16*4
.column_st7:
; Store one pixel (4 bytes) of ymmA to the output when it has enough
; space.
test ecx, ecx
jz short .endcolumn
vmovd XMM_DWORD [edi], xmmA
%endif ; RGB_PIXELSIZE ; ---------------
.endcolumn:
sfence ; flush the write buffer
.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
; --------------------------------------------------------------------------
;
; Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical.
;
; GLOBAL(void)
; jsimd_h2v2_merged_upsample_avx2(JDIMENSION output_width,
; JSAMPIMAGE input_buf,
; JDIMENSION in_row_group_ctr,
; JSAMPARRAY output_buf);
;
%define output_width(b) (b) + 8 ; JDIMENSION output_width
%define input_buf(b) (b) + 12 ; JSAMPIMAGE input_buf
%define in_row_group_ctr(b) (b) + 16 ; JDIMENSION in_row_group_ctr
%define output_buf(b) (b) + 20 ; JSAMPARRAY output_buf
align 32
GLOBAL_FUNCTION(jsimd_h2v2_merged_upsample_avx2)
EXTN(jsimd_h2v2_merged_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 eax, POINTER [output_width(ebp)]
mov edi, JSAMPIMAGE [input_buf(ebp)]
mov ecx, JDIMENSION [in_row_group_ctr(ebp)]
mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
mov edi, JSAMPARRAY [output_buf(ebp)]
lea esi, [esi+ecx*SIZEOF_JSAMPROW]
push edx ; inptr2
push ebx ; inptr1
push esi ; inptr00
mov ebx, esp
push edi ; output_buf (outptr0)
push ecx ; in_row_group_ctr
push ebx ; input_buf
push eax ; output_width
call near EXTN(jsimd_h2v1_merged_upsample_avx2)
add esi, byte SIZEOF_JSAMPROW ; inptr01
add edi, byte SIZEOF_JSAMPROW ; outptr1
mov POINTER [ebx+0*SIZEOF_POINTER], esi
mov POINTER [ebx-1*SIZEOF_POINTER], edi
call near EXTN(jsimd_h2v1_merged_upsample_avx2)
add esp, byte 7*SIZEOF_DWORD
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