; ; jdcolext.asm - colorspace conversion (64-bit AVX2) ; ; Copyright 2009, 2012 Pierre Ossman 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