mirror of
https://bitbucket.org/CPMADevs/cnq3
synced 2024-11-29 23:32:03 +00:00
fc9465caab
aside from the speed improvements, this also makes for nicer code in the renderer interaction with libjpeg, thanks to mem_dest support etc
440 lines
17 KiB
NASM
440 lines
17 KiB
NASM
;
|
|
; jdcolext.asm - colorspace conversion (64-bit SSE2)
|
|
;
|
|
; Copyright 2009, 2012 Pierre Ossman <ossman@cendio.se> for Cendio AB
|
|
; Copyright (C) 2009, 2012, 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)
|
|
;
|
|
|
|
; r10 = JDIMENSION out_width
|
|
; r11 = JSAMPIMAGE input_buf
|
|
; r12 = JDIMENSION input_row
|
|
; r13 = JSAMPARRAY output_buf
|
|
; r14 = int num_rows
|
|
|
|
%define wk(i) rbp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
|
|
%define WK_NUM 2
|
|
|
|
align 16
|
|
global EXTN(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
|
|
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
|
|
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 16
|