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|
;
; jdcolext.asm - colorspace conversion (64-bit AVX2)
;
; Copyright 2009, 2012 Pierre Ossman <ossman@cendio.se> for Cendio AB
; Copyright (C) 2009, 2012, 2016, D. R. Commander.
; Copyright (C) 2015, Intel Corporation.
; Copyright (C) 2018, Matthias Räncker.
;
; 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"
; --------------------------------------------------------------------------
;
; Convert some rows of samples to the output colorspace.
;
; GLOBAL(void)
; jsimd_ycc_rgb_convert_avx2(JDIMENSION out_width, JSAMPIMAGE input_buf,
; JDIMENSION input_row, JSAMPARRAY output_buf,
; int num_rows)
;
; r10d = JDIMENSION out_width
; r11 = JSAMPIMAGE input_buf
; r12d = JDIMENSION input_row
; r13 = JSAMPARRAY output_buf
; r14d = int num_rows
%define wk(i) rbp - (WK_NUM - (i)) * SIZEOF_YMMWORD ; ymmword wk[WK_NUM]
%define WK_NUM 2
align 32
GLOBAL_FUNCTION(jsimd_ycc_rgb_convert_avx2)
EXTN(jsimd_ycc_rgb_convert_avx2):
push rbp
mov rax, rsp ; rax = original rbp
sub rsp, byte 4
and rsp, byte (-SIZEOF_YMMWORD) ; align to 256 bits
mov [rsp], rax
mov rbp, rsp ; rbp = aligned rbp
lea rsp, [wk(0)]
collect_args 5
push rbx
mov ecx, r10d ; num_cols
test rcx, rcx
jz near .return
push rcx
mov rdi, r11
mov ecx, r12d
mov rsip, JSAMPARRAY [rdi+0*SIZEOF_JSAMPARRAY]
mov rbxp, JSAMPARRAY [rdi+1*SIZEOF_JSAMPARRAY]
mov rdxp, JSAMPARRAY [rdi+2*SIZEOF_JSAMPARRAY]
lea rsi, [rsi+rcx*SIZEOF_JSAMPROW]
lea rbx, [rbx+rcx*SIZEOF_JSAMPROW]
lea rdx, [rdx+rcx*SIZEOF_JSAMPROW]
pop rcx
mov rdi, r13
mov eax, r14d
test rax, rax
jle near .return
.rowloop:
push rax
push rdi
push rdx
push rbx
push rsi
push rcx ; col
mov rsip, JSAMPROW [rsi] ; inptr0
mov rbxp, JSAMPROW [rbx] ; inptr1
mov rdxp, JSAMPROW [rdx] ; inptr2
mov rdip, JSAMPROW [rdi] ; outptr
.columnloop:
vmovdqu ymm5, YMMWORD [rbx] ; ymm5=Cb(0123456789ABCDEFGHIJKLMNOPQRSTUV)
vmovdqu ymm1, YMMWORD [rdx] ; ymm1=Cr(0123456789ABCDEFGHIJKLMNOPQRSTUV)
vpcmpeqw ymm0, ymm0, ymm0
vpcmpeqw ymm7, ymm7, ymm7
vpsrlw ymm0, ymm0, BYTE_BIT ; ymm0={0xFF 0x00 0xFF 0x00 ..}
vpsllw ymm7, ymm7, 7 ; ymm7={0xFF80 0xFF80 0xFF80 0xFF80 ..}
vpand ymm4, ymm0, ymm5 ; ymm4=Cb(02468ACEGIKMOQSU)=CbE
vpsrlw ymm5, ymm5, BYTE_BIT ; ymm5=Cb(13579BDFHJLNPRTV)=CbO
vpand ymm0, ymm0, ymm1 ; ymm0=Cr(02468ACEGIKMOQSU)=CrE
vpsrlw ymm1, ymm1, BYTE_BIT ; ymm1=Cr(13579BDFHJLNPRTV)=CrO
vpaddw ymm2, ymm4, ymm7
vpaddw ymm3, ymm5, ymm7
vpaddw ymm6, ymm0, ymm7
vpaddw ymm7, ymm1, ymm7
; (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 ymm4, ymm2, ymm2 ; ymm4=2*CbE
vpaddw ymm5, ymm3, ymm3 ; ymm5=2*CbO
vpaddw ymm0, ymm6, ymm6 ; ymm0=2*CrE
vpaddw ymm1, ymm7, ymm7 ; ymm1=2*CrO
vpmulhw ymm4, ymm4, [rel PW_MF0228] ; ymm4=(2*CbE * -FIX(0.22800))
vpmulhw ymm5, ymm5, [rel PW_MF0228] ; ymm5=(2*CbO * -FIX(0.22800))
vpmulhw ymm0, ymm0, [rel PW_F0402] ; ymm0=(2*CrE * FIX(0.40200))
vpmulhw ymm1, ymm1, [rel PW_F0402] ; ymm1=(2*CrO * FIX(0.40200))
vpaddw ymm4, ymm4, [rel PW_ONE]
vpaddw ymm5, ymm5, [rel PW_ONE]
vpsraw ymm4, ymm4, 1 ; ymm4=(CbE * -FIX(0.22800))
vpsraw ymm5, ymm5, 1 ; ymm5=(CbO * -FIX(0.22800))
vpaddw ymm0, ymm0, [rel PW_ONE]
vpaddw ymm1, ymm1, [rel PW_ONE]
vpsraw ymm0, ymm0, 1 ; ymm0=(CrE * FIX(0.40200))
vpsraw ymm1, ymm1, 1 ; ymm1=(CrO * FIX(0.40200))
vpaddw ymm4, ymm4, ymm2
vpaddw ymm5, ymm5, ymm3
vpaddw ymm4, ymm4, ymm2 ; ymm4=(CbE * FIX(1.77200))=(B-Y)E
vpaddw ymm5, ymm5, ymm3 ; ymm5=(CbO * FIX(1.77200))=(B-Y)O
vpaddw ymm0, ymm0, ymm6 ; ymm0=(CrE * FIX(1.40200))=(R-Y)E
vpaddw ymm1, ymm1, ymm7 ; ymm1=(CrO * FIX(1.40200))=(R-Y)O
vmovdqa YMMWORD [wk(0)], ymm4 ; wk(0)=(B-Y)E
vmovdqa YMMWORD [wk(1)], ymm5 ; wk(1)=(B-Y)O
vpunpckhwd ymm4, ymm2, ymm6
vpunpcklwd ymm2, ymm2, ymm6
vpmaddwd ymm2, ymm2, [rel PW_MF0344_F0285]
vpmaddwd ymm4, ymm4, [rel PW_MF0344_F0285]
vpunpckhwd ymm5, ymm3, ymm7
vpunpcklwd ymm3, ymm3, ymm7
vpmaddwd ymm3, ymm3, [rel PW_MF0344_F0285]
vpmaddwd ymm5, ymm5, [rel PW_MF0344_F0285]
vpaddd ymm2, ymm2, [rel PD_ONEHALF]
vpaddd ymm4, ymm4, [rel PD_ONEHALF]
vpsrad ymm2, ymm2, SCALEBITS
vpsrad ymm4, ymm4, SCALEBITS
vpaddd ymm3, ymm3, [rel PD_ONEHALF]
vpaddd ymm5, ymm5, [rel PD_ONEHALF]
vpsrad ymm3, ymm3, SCALEBITS
vpsrad ymm5, ymm5, SCALEBITS
vpackssdw ymm2, ymm2, ymm4 ; ymm2=CbE*-FIX(0.344)+CrE*FIX(0.285)
vpackssdw ymm3, ymm3, ymm5 ; ymm3=CbO*-FIX(0.344)+CrO*FIX(0.285)
vpsubw ymm2, ymm2, ymm6 ; ymm2=CbE*-FIX(0.344)+CrE*-FIX(0.714)=(G-Y)E
vpsubw ymm3, ymm3, ymm7 ; ymm3=CbO*-FIX(0.344)+CrO*-FIX(0.714)=(G-Y)O
vmovdqu ymm5, YMMWORD [rsi] ; ymm5=Y(0123456789ABCDEFGHIJKLMNOPQRSTUV)
vpcmpeqw ymm4, ymm4, ymm4
vpsrlw ymm4, ymm4, BYTE_BIT ; ymm4={0xFF 0x00 0xFF 0x00 ..}
vpand ymm4, ymm4, ymm5 ; ymm4=Y(02468ACEGIKMOQSU)=YE
vpsrlw ymm5, ymm5, BYTE_BIT ; ymm5=Y(13579BDFHJLNPRTV)=YO
vpaddw ymm0, ymm0, ymm4 ; ymm0=((R-Y)E+YE)=RE=R(02468ACEGIKMOQSU)
vpaddw ymm1, ymm1, ymm5 ; ymm1=((R-Y)O+YO)=RO=R(13579BDFHJLNPRTV)
vpackuswb ymm0, ymm0, ymm0 ; ymm0=R(02468ACE********GIKMOQSU********)
vpackuswb ymm1, ymm1, ymm1 ; ymm1=R(13579BDF********HJLNPRTV********)
vpaddw ymm2, ymm2, ymm4 ; ymm2=((G-Y)E+YE)=GE=G(02468ACEGIKMOQSU)
vpaddw ymm3, ymm3, ymm5 ; ymm3=((G-Y)O+YO)=GO=G(13579BDFHJLNPRTV)
vpackuswb ymm2, ymm2, ymm2 ; ymm2=G(02468ACE********GIKMOQSU********)
vpackuswb ymm3, ymm3, ymm3 ; ymm3=G(13579BDF********HJLNPRTV********)
vpaddw ymm4, ymm4, YMMWORD [wk(0)] ; ymm4=(YE+(B-Y)E)=BE=B(02468ACEGIKMOQSU)
vpaddw ymm5, ymm5, YMMWORD [wk(1)] ; ymm5=(YO+(B-Y)O)=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 rcx, byte SIZEOF_YMMWORD
jb short .column_st64
test rdi, SIZEOF_YMMWORD-1
jnz short .out1
; --(aligned)-------------------
vmovntdq YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA
vmovntdq YMMWORD [rdi+1*SIZEOF_YMMWORD], ymmD
vmovntdq YMMWORD [rdi+2*SIZEOF_YMMWORD], ymmF
jmp short .out0
.out1: ; --(unaligned)-----------------
vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA
vmovdqu YMMWORD [rdi+1*SIZEOF_YMMWORD], ymmD
vmovdqu YMMWORD [rdi+2*SIZEOF_YMMWORD], ymmF
.out0:
add rdi, byte RGB_PIXELSIZE*SIZEOF_YMMWORD ; outptr
sub rcx, byte SIZEOF_YMMWORD
jz near .nextrow
add rsi, byte SIZEOF_YMMWORD ; inptr0
add rbx, byte SIZEOF_YMMWORD ; inptr1
add rdx, byte SIZEOF_YMMWORD ; inptr2
jmp near .columnloop
.column_st64:
lea rcx, [rcx+rcx*2] ; imul ecx, RGB_PIXELSIZE
cmp rcx, byte 2*SIZEOF_YMMWORD
jb short .column_st32
vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA
vmovdqu YMMWORD [rdi+1*SIZEOF_YMMWORD], ymmD
add rdi, byte 2*SIZEOF_YMMWORD ; outptr
vmovdqa ymmA, ymmF
sub rcx, byte 2*SIZEOF_YMMWORD
jmp short .column_st31
.column_st32:
cmp rcx, byte SIZEOF_YMMWORD
jb short .column_st31
vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA
add rdi, byte SIZEOF_YMMWORD ; outptr
vmovdqa ymmA, ymmD
sub rcx, byte SIZEOF_YMMWORD
jmp short .column_st31
.column_st31:
cmp rcx, byte SIZEOF_XMMWORD
jb short .column_st15
vmovdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
add rdi, byte SIZEOF_XMMWORD ; outptr
vperm2i128 ymmA, ymmA, ymmA, 1
sub rcx, byte SIZEOF_XMMWORD
.column_st15:
; Store the lower 8 bytes of xmmA to the output when it has enough
; space.
cmp rcx, byte SIZEOF_MMWORD
jb short .column_st7
vmovq XMM_MMWORD [rdi], xmmA
add rdi, byte SIZEOF_MMWORD
sub rcx, 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 rcx, byte SIZEOF_DWORD
jb short .column_st3
vmovd XMM_DWORD [rdi], xmmA
add rdi, byte SIZEOF_DWORD
sub rcx, byte SIZEOF_DWORD
vpsrldq xmmA, xmmA, SIZEOF_DWORD
.column_st3:
; Store the lower 2 bytes of rax to the output when it has enough
; space.
vmovd eax, xmmA
cmp rcx, byte SIZEOF_WORD
jb short .column_st1
mov word [rdi], ax
add rdi, byte SIZEOF_WORD
sub rcx, byte SIZEOF_WORD
shr rax, 16
.column_st1:
; Store the lower 1 byte of rax to the output when it has enough
; space.
test rcx, rcx
jz short .nextrow
mov byte [rdi], 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 rcx, byte SIZEOF_YMMWORD
jb short .column_st64
test rdi, SIZEOF_YMMWORD-1
jnz short .out1
; --(aligned)-------------------
vmovntdq YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA
vmovntdq YMMWORD [rdi+1*SIZEOF_YMMWORD], ymmD
vmovntdq YMMWORD [rdi+2*SIZEOF_YMMWORD], ymmC
vmovntdq YMMWORD [rdi+3*SIZEOF_YMMWORD], ymmH
jmp short .out0
.out1: ; --(unaligned)-----------------
vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA
vmovdqu YMMWORD [rdi+1*SIZEOF_YMMWORD], ymmD
vmovdqu YMMWORD [rdi+2*SIZEOF_YMMWORD], ymmC
vmovdqu YMMWORD [rdi+3*SIZEOF_YMMWORD], ymmH
.out0:
add rdi, RGB_PIXELSIZE*SIZEOF_YMMWORD ; outptr
sub rcx, byte SIZEOF_YMMWORD
jz near .nextrow
add rsi, byte SIZEOF_YMMWORD ; inptr0
add rbx, byte SIZEOF_YMMWORD ; inptr1
add rdx, byte SIZEOF_YMMWORD ; inptr2
jmp near .columnloop
.column_st64:
cmp rcx, byte SIZEOF_YMMWORD/2
jb short .column_st32
vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA
vmovdqu YMMWORD [rdi+1*SIZEOF_YMMWORD], ymmD
add rdi, byte 2*SIZEOF_YMMWORD ; outptr
vmovdqa ymmA, ymmC
vmovdqa ymmD, ymmH
sub rcx, byte SIZEOF_YMMWORD/2
.column_st32:
cmp rcx, byte SIZEOF_YMMWORD/4
jb short .column_st16
vmovdqu YMMWORD [rdi+0*SIZEOF_YMMWORD], ymmA
add rdi, byte SIZEOF_YMMWORD ; outptr
vmovdqa ymmA, ymmD
sub rcx, byte SIZEOF_YMMWORD/4
.column_st16:
cmp rcx, byte SIZEOF_YMMWORD/8
jb short .column_st15
vmovdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA
vperm2i128 ymmA, ymmA, ymmA, 1
add rdi, byte SIZEOF_XMMWORD ; outptr
sub rcx, byte SIZEOF_YMMWORD/8
.column_st15:
; Store two pixels (8 bytes) of ymmA to the output when it has enough
; space.
cmp rcx, byte SIZEOF_YMMWORD/16
jb short .column_st7
vmovq MMWORD [rdi], xmmA
add rdi, byte SIZEOF_YMMWORD/16*4
sub rcx, 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 rcx, rcx
jz short .nextrow
vmovd XMM_DWORD [rdi], xmmA
%endif ; RGB_PIXELSIZE ; ---------------
.nextrow:
pop rcx
pop rsi
pop rbx
pop rdx
pop rdi
pop rax
add rsi, byte SIZEOF_JSAMPROW
add rbx, byte SIZEOF_JSAMPROW
add rdx, byte SIZEOF_JSAMPROW
add rdi, byte SIZEOF_JSAMPROW ; output_buf
dec rax ; num_rows
jg near .rowloop
sfence ; flush the write buffer
.return:
pop rbx
vzeroupper
uncollect_args 5
mov rsp, rbp ; rsp <- aligned rbp
pop rsp ; rsp <- original rbp
pop rbp
ret
; For some reason, the OS X linker does not honor the request to align the
; segment unless we do this.
align 32
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