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Diffstat (limited to 'media/libjpeg/simd/x86_64/jdcolext-avx2.asm')
-rw-r--r--media/libjpeg/simd/x86_64/jdcolext-avx2.asm496
1 files changed, 496 insertions, 0 deletions
diff --git a/media/libjpeg/simd/x86_64/jdcolext-avx2.asm b/media/libjpeg/simd/x86_64/jdcolext-avx2.asm
new file mode 100644
index 0000000000..2370fda642
--- /dev/null
+++ b/media/libjpeg/simd/x86_64/jdcolext-avx2.asm
@@ -0,0 +1,496 @@
+;
+; 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