; ; jdcolext.asm - colorspace conversion (64-bit SSE2) ; ; Copyright 2009, 2012 Pierre Ossman for Cendio AB ; Copyright (C) 2009, 2012, 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 ; ; [TAB8] %include "jcolsamp.inc" ; -------------------------------------------------------------------------- ; ; Convert some rows of samples to the output colorspace. ; ; GLOBAL(void) ; jsimd_ycc_rgb_convert_sse2(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_XMMWORD ; xmmword wk[WK_NUM] %define WK_NUM 2 align 32 GLOBAL_FUNCTION(jsimd_ycc_rgb_convert_sse2) EXTN(jsimd_ycc_rgb_convert_sse2): push rbp mov rax, rsp ; rax = original rbp sub rsp, byte 4 and rsp, byte (-SIZEOF_XMMWORD) ; align to 128 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 rsi, JSAMPARRAY [rdi+0*SIZEOF_JSAMPARRAY] mov rbx, JSAMPARRAY [rdi+1*SIZEOF_JSAMPARRAY] mov rdx, 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 rsi, JSAMPROW [rsi] ; inptr0 mov rbx, JSAMPROW [rbx] ; inptr1 mov rdx, JSAMPROW [rdx] ; inptr2 mov rdi, JSAMPROW [rdi] ; outptr .columnloop: movdqa xmm5, XMMWORD [rbx] ; xmm5=Cb(0123456789ABCDEF) movdqa xmm1, XMMWORD [rdx] ; xmm1=Cr(0123456789ABCDEF) pcmpeqw xmm4, xmm4 pcmpeqw xmm7, xmm7 psrlw xmm4, BYTE_BIT psllw xmm7, 7 ; xmm7={0xFF80 0xFF80 0xFF80 0xFF80 ..} movdqa xmm0, xmm4 ; xmm0=xmm4={0xFF 0x00 0xFF 0x00 ..} pand xmm4, xmm5 ; xmm4=Cb(02468ACE)=CbE psrlw xmm5, BYTE_BIT ; xmm5=Cb(13579BDF)=CbO pand xmm0, xmm1 ; xmm0=Cr(02468ACE)=CrE psrlw xmm1, BYTE_BIT ; xmm1=Cr(13579BDF)=CrO paddw xmm4, xmm7 paddw xmm5, xmm7 paddw xmm0, xmm7 paddw xmm1, xmm7 ; (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 movdqa xmm2, xmm4 ; xmm2=CbE movdqa xmm3, xmm5 ; xmm3=CbO paddw xmm4, xmm4 ; xmm4=2*CbE paddw xmm5, xmm5 ; xmm5=2*CbO movdqa xmm6, xmm0 ; xmm6=CrE movdqa xmm7, xmm1 ; xmm7=CrO paddw xmm0, xmm0 ; xmm0=2*CrE paddw xmm1, xmm1 ; xmm1=2*CrO pmulhw xmm4, [rel PW_MF0228] ; xmm4=(2*CbE * -FIX(0.22800)) pmulhw xmm5, [rel PW_MF0228] ; xmm5=(2*CbO * -FIX(0.22800)) pmulhw xmm0, [rel PW_F0402] ; xmm0=(2*CrE * FIX(0.40200)) pmulhw xmm1, [rel PW_F0402] ; xmm1=(2*CrO * FIX(0.40200)) paddw xmm4, [rel PW_ONE] paddw xmm5, [rel PW_ONE] psraw xmm4, 1 ; xmm4=(CbE * -FIX(0.22800)) psraw xmm5, 1 ; xmm5=(CbO * -FIX(0.22800)) paddw xmm0, [rel PW_ONE] paddw xmm1, [rel PW_ONE] psraw xmm0, 1 ; xmm0=(CrE * FIX(0.40200)) psraw xmm1, 1 ; xmm1=(CrO * FIX(0.40200)) paddw xmm4, xmm2 paddw xmm5, xmm3 paddw xmm4, xmm2 ; xmm4=(CbE * FIX(1.77200))=(B-Y)E paddw xmm5, xmm3 ; xmm5=(CbO * FIX(1.77200))=(B-Y)O paddw xmm0, xmm6 ; xmm0=(CrE * FIX(1.40200))=(R-Y)E paddw xmm1, xmm7 ; xmm1=(CrO * FIX(1.40200))=(R-Y)O movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=(B-Y)E movdqa XMMWORD [wk(1)], xmm5 ; wk(1)=(B-Y)O movdqa xmm4, xmm2 movdqa xmm5, xmm3 punpcklwd xmm2, xmm6 punpckhwd xmm4, xmm6 pmaddwd xmm2, [rel PW_MF0344_F0285] pmaddwd xmm4, [rel PW_MF0344_F0285] punpcklwd xmm3, xmm7 punpckhwd xmm5, xmm7 pmaddwd xmm3, [rel PW_MF0344_F0285] pmaddwd xmm5, [rel PW_MF0344_F0285] paddd xmm2, [rel PD_ONEHALF] paddd xmm4, [rel PD_ONEHALF] psrad xmm2, SCALEBITS psrad xmm4, SCALEBITS paddd xmm3, [rel PD_ONEHALF] paddd xmm5, [rel PD_ONEHALF] psrad xmm3, SCALEBITS psrad xmm5, SCALEBITS packssdw xmm2, xmm4 ; xmm2=CbE*-FIX(0.344)+CrE*FIX(0.285) packssdw xmm3, xmm5 ; xmm3=CbO*-FIX(0.344)+CrO*FIX(0.285) psubw xmm2, xmm6 ; xmm2=CbE*-FIX(0.344)+CrE*-FIX(0.714)=(G-Y)E psubw xmm3, xmm7 ; xmm3=CbO*-FIX(0.344)+CrO*-FIX(0.714)=(G-Y)O movdqa xmm5, XMMWORD [rsi] ; xmm5=Y(0123456789ABCDEF) pcmpeqw xmm4, xmm4 psrlw xmm4, BYTE_BIT ; xmm4={0xFF 0x00 0xFF 0x00 ..} pand xmm4, xmm5 ; xmm4=Y(02468ACE)=YE psrlw xmm5, BYTE_BIT ; xmm5=Y(13579BDF)=YO paddw xmm0, xmm4 ; xmm0=((R-Y)E+YE)=RE=R(02468ACE) paddw xmm1, xmm5 ; xmm1=((R-Y)O+YO)=RO=R(13579BDF) packuswb xmm0, xmm0 ; xmm0=R(02468ACE********) packuswb xmm1, xmm1 ; xmm1=R(13579BDF********) paddw xmm2, xmm4 ; xmm2=((G-Y)E+YE)=GE=G(02468ACE) paddw xmm3, xmm5 ; xmm3=((G-Y)O+YO)=GO=G(13579BDF) packuswb xmm2, xmm2 ; xmm2=G(02468ACE********) packuswb xmm3, xmm3 ; xmm3=G(13579BDF********) paddw xmm4, XMMWORD [wk(0)] ; xmm4=(YE+(B-Y)E)=BE=B(02468ACE) paddw xmm5, XMMWORD [wk(1)] ; xmm5=(YO+(B-Y)O)=BO=B(13579BDF) packuswb xmm4, xmm4 ; xmm4=B(02468ACE********) packuswb xmm5, xmm5 ; xmm5=B(13579BDF********) %if RGB_PIXELSIZE == 3 ; --------------- ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **) ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **) ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **) ; xmmG=(** ** ** ** ** ** ** ** **), xmmH=(** ** ** ** ** ** ** ** **) punpcklbw xmmA, xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E) punpcklbw xmmE, xmmB ; xmmE=(20 01 22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F) punpcklbw xmmD, xmmF ; xmmD=(11 21 13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F) movdqa xmmG, xmmA movdqa xmmH, xmmA punpcklwd xmmA, xmmE ; xmmA=(00 10 20 01 02 12 22 03 04 14 24 05 06 16 26 07) punpckhwd xmmG, xmmE ; xmmG=(08 18 28 09 0A 1A 2A 0B 0C 1C 2C 0D 0E 1E 2E 0F) psrldq xmmH, 2 ; xmmH=(02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E -- --) psrldq xmmE, 2 ; xmmE=(22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F -- --) movdqa xmmC, xmmD movdqa xmmB, xmmD punpcklwd xmmD, xmmH ; xmmD=(11 21 02 12 13 23 04 14 15 25 06 16 17 27 08 18) punpckhwd xmmC, xmmH ; xmmC=(19 29 0A 1A 1B 2B 0C 1C 1D 2D 0E 1E 1F 2F -- --) psrldq xmmB, 2 ; xmmB=(13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F -- --) movdqa xmmF, xmmE punpcklwd xmmE, xmmB ; xmmE=(22 03 13 23 24 05 15 25 26 07 17 27 28 09 19 29) punpckhwd xmmF, xmmB ; xmmF=(2A 0B 1B 2B 2C 0D 1D 2D 2E 0F 1F 2F -- -- -- --) pshufd xmmH, xmmA, 0x4E ; xmmH=(04 14 24 05 06 16 26 07 00 10 20 01 02 12 22 03) movdqa xmmB, xmmE punpckldq xmmA, xmmD ; xmmA=(00 10 20 01 11 21 02 12 02 12 22 03 13 23 04 14) punpckldq xmmE, xmmH ; xmmE=(22 03 13 23 04 14 24 05 24 05 15 25 06 16 26 07) punpckhdq xmmD, xmmB ; xmmD=(15 25 06 16 26 07 17 27 17 27 08 18 28 09 19 29) pshufd xmmH, xmmG, 0x4E ; xmmH=(0C 1C 2C 0D 0E 1E 2E 0F 08 18 28 09 0A 1A 2A 0B) movdqa xmmB, xmmF punpckldq xmmG, xmmC ; xmmG=(08 18 28 09 19 29 0A 1A 0A 1A 2A 0B 1B 2B 0C 1C) punpckldq xmmF, xmmH ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 2C 0D 1D 2D 0E 1E 2E 0F) punpckhdq xmmC, xmmB ; xmmC=(1D 2D 0E 1E 2E 0F 1F 2F 1F 2F -- -- -- -- -- --) punpcklqdq xmmA, xmmE ; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05) punpcklqdq xmmD, xmmG ; xmmD=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A) punpcklqdq xmmF, xmmC ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F) cmp rcx, byte SIZEOF_XMMWORD jb short .column_st32 test rdi, SIZEOF_XMMWORD-1 jnz short .out1 ; --(aligned)------------------- movntdq XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA movntdq XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD movntdq XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmF jmp short .out0 .out1: ; --(unaligned)----------------- movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD movdqu XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmF .out0: add rdi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr sub rcx, byte SIZEOF_XMMWORD jz near .nextrow add rsi, byte SIZEOF_XMMWORD ; inptr0 add rbx, byte SIZEOF_XMMWORD ; inptr1 add rdx, byte SIZEOF_XMMWORD ; inptr2 jmp near .columnloop .column_st32: lea rcx, [rcx+rcx*2] ; imul ecx, RGB_PIXELSIZE cmp rcx, byte 2*SIZEOF_XMMWORD jb short .column_st16 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD add rdi, byte 2*SIZEOF_XMMWORD ; outptr movdqa xmmA, xmmF sub rcx, byte 2*SIZEOF_XMMWORD jmp short .column_st15 .column_st16: cmp rcx, byte SIZEOF_XMMWORD jb short .column_st15 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA add rdi, byte SIZEOF_XMMWORD ; outptr movdqa xmmA, xmmD 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 movq XMM_MMWORD [rdi], xmmA add rdi, byte SIZEOF_MMWORD sub rcx, byte SIZEOF_MMWORD psrldq 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 movd XMM_DWORD [rdi], xmmA add rdi, byte SIZEOF_DWORD sub rcx, byte SIZEOF_DWORD psrldq xmmA, SIZEOF_DWORD .column_st3: ; Store the lower 2 bytes of rax to the output when it has enough ; space. movd 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 pcmpeqb xmm6, xmm6 ; xmm6=XE=X(02468ACE********) pcmpeqb xmm7, xmm7 ; xmm7=XO=X(13579BDF********) %else pxor xmm6, xmm6 ; xmm6=XE=X(02468ACE********) pxor xmm7, xmm7 ; xmm7=XO=X(13579BDF********) %endif ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **) ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **) ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **) ; xmmG=(30 32 34 36 38 3A 3C 3E **), xmmH=(31 33 35 37 39 3B 3D 3F **) punpcklbw xmmA, xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E) punpcklbw xmmE, xmmG ; xmmE=(20 30 22 32 24 34 26 36 28 38 2A 3A 2C 3C 2E 3E) punpcklbw xmmB, xmmD ; xmmB=(01 11 03 13 05 15 07 17 09 19 0B 1B 0D 1D 0F 1F) punpcklbw xmmF, xmmH ; xmmF=(21 31 23 33 25 35 27 37 29 39 2B 3B 2D 3D 2F 3F) movdqa xmmC, xmmA punpcklwd xmmA, xmmE ; xmmA=(00 10 20 30 02 12 22 32 04 14 24 34 06 16 26 36) punpckhwd xmmC, xmmE ; xmmC=(08 18 28 38 0A 1A 2A 3A 0C 1C 2C 3C 0E 1E 2E 3E) movdqa xmmG, xmmB punpcklwd xmmB, xmmF ; xmmB=(01 11 21 31 03 13 23 33 05 15 25 35 07 17 27 37) punpckhwd xmmG, xmmF ; xmmG=(09 19 29 39 0B 1B 2B 3B 0D 1D 2D 3D 0F 1F 2F 3F) movdqa xmmD, xmmA punpckldq xmmA, xmmB ; xmmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33) punpckhdq xmmD, xmmB ; xmmD=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37) movdqa xmmH, xmmC punpckldq xmmC, xmmG ; xmmC=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B) punpckhdq xmmH, xmmG ; xmmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F) cmp rcx, byte SIZEOF_XMMWORD jb short .column_st32 test rdi, SIZEOF_XMMWORD-1 jnz short .out1 ; --(aligned)------------------- movntdq XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA movntdq XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD movntdq XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmC movntdq XMMWORD [rdi+3*SIZEOF_XMMWORD], xmmH jmp short .out0 .out1: ; --(unaligned)----------------- movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD movdqu XMMWORD [rdi+2*SIZEOF_XMMWORD], xmmC movdqu XMMWORD [rdi+3*SIZEOF_XMMWORD], xmmH .out0: add rdi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr sub rcx, byte SIZEOF_XMMWORD jz near .nextrow add rsi, byte SIZEOF_XMMWORD ; inptr0 add rbx, byte SIZEOF_XMMWORD ; inptr1 add rdx, byte SIZEOF_XMMWORD ; inptr2 jmp near .columnloop .column_st32: cmp rcx, byte SIZEOF_XMMWORD/2 jb short .column_st16 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA movdqu XMMWORD [rdi+1*SIZEOF_XMMWORD], xmmD add rdi, byte 2*SIZEOF_XMMWORD ; outptr movdqa xmmA, xmmC movdqa xmmD, xmmH sub rcx, byte SIZEOF_XMMWORD/2 .column_st16: cmp rcx, byte SIZEOF_XMMWORD/4 jb short .column_st15 movdqu XMMWORD [rdi+0*SIZEOF_XMMWORD], xmmA add rdi, byte SIZEOF_XMMWORD ; outptr movdqa xmmA, xmmD sub rcx, byte SIZEOF_XMMWORD/4 .column_st15: ; Store two pixels (8 bytes) of xmmA to the output when it has enough ; space. cmp rcx, byte SIZEOF_XMMWORD/8 jb short .column_st7 movq MMWORD [rdi], xmmA add rdi, byte SIZEOF_XMMWORD/8*4 sub rcx, byte SIZEOF_XMMWORD/8 psrldq xmmA, SIZEOF_XMMWORD/8*4 .column_st7: ; Store one pixel (4 bytes) of xmmA to the output when it has enough ; space. test rcx, rcx jz short .nextrow movd 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 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