| ; |
| ; jdmrgss2.asm - merged upsampling/color conversion (SSE2) |
| ; |
| ; Copyright 2009, 2012 Pierre Ossman <ossman@cendio.se> for Cendio AB |
| ; Copyright 2012 D. R. Commander |
| ; |
| ; Based on |
| ; 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" |
| |
| ; -------------------------------------------------------------------------- |
| ; |
| ; Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical. |
| ; |
| ; GLOBAL(void) |
| ; jsimd_h2v1_merged_upsample_sse2 (JDIMENSION output_width, |
| ; JSAMPIMAGE input_buf, |
| ; JDIMENSION in_row_group_ctr, |
| ; JSAMPARRAY output_buf); |
| ; |
| |
| %define output_width(b) (b)+8 ; JDIMENSION output_width |
| %define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf |
| %define in_row_group_ctr(b) (b)+16 ; JDIMENSION in_row_group_ctr |
| %define output_buf(b) (b)+20 ; JSAMPARRAY output_buf |
| |
| %define original_ebp ebp+0 |
| %define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM] |
| %define WK_NUM 3 |
| %define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr |
| |
| align 16 |
| global EXTN(jsimd_h2v1_merged_upsample_sse2) |
| |
| EXTN(jsimd_h2v1_merged_upsample_sse2): |
| push ebp |
| mov eax,esp ; eax = original ebp |
| sub esp, byte 4 |
| and esp, byte (-SIZEOF_XMMWORD) ; align to 128 bits |
| mov [esp],eax |
| mov ebp,esp ; ebp = aligned ebp |
| lea esp, [wk(0)] |
| pushpic eax ; make a room for GOT address |
| push ebx |
| ; push ecx ; need not be preserved |
| ; push edx ; need not be preserved |
| push esi |
| push edi |
| |
| get_GOT ebx ; get GOT address |
| movpic POINTER [gotptr], ebx ; save GOT address |
| |
| mov ecx, JDIMENSION [output_width(eax)] ; col |
| test ecx,ecx |
| jz near .return |
| |
| push ecx |
| |
| mov edi, JSAMPIMAGE [input_buf(eax)] |
| mov ecx, JDIMENSION [in_row_group_ctr(eax)] |
| mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY] |
| mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY] |
| mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY] |
| mov edi, JSAMPARRAY [output_buf(eax)] |
| mov esi, JSAMPROW [esi+ecx*SIZEOF_JSAMPROW] ; inptr0 |
| mov ebx, JSAMPROW [ebx+ecx*SIZEOF_JSAMPROW] ; inptr1 |
| mov edx, JSAMPROW [edx+ecx*SIZEOF_JSAMPROW] ; inptr2 |
| mov edi, JSAMPROW [edi] ; outptr |
| |
| pop ecx ; col |
| |
| alignx 16,7 |
| .columnloop: |
| movpic eax, POINTER [gotptr] ; load GOT address (eax) |
| |
| movdqa xmm6, XMMWORD [ebx] ; xmm6=Cb(0123456789ABCDEF) |
| movdqa xmm7, XMMWORD [edx] ; xmm7=Cr(0123456789ABCDEF) |
| |
| pxor xmm1,xmm1 ; xmm1=(all 0's) |
| pcmpeqw xmm3,xmm3 |
| psllw xmm3,7 ; xmm3={0xFF80 0xFF80 0xFF80 0xFF80 ..} |
| |
| movdqa xmm4,xmm6 |
| punpckhbw xmm6,xmm1 ; xmm6=Cb(89ABCDEF)=CbH |
| punpcklbw xmm4,xmm1 ; xmm4=Cb(01234567)=CbL |
| movdqa xmm0,xmm7 |
| punpckhbw xmm7,xmm1 ; xmm7=Cr(89ABCDEF)=CrH |
| punpcklbw xmm0,xmm1 ; xmm0=Cr(01234567)=CrL |
| |
| paddw xmm6,xmm3 |
| paddw xmm4,xmm3 |
| paddw xmm7,xmm3 |
| paddw xmm0,xmm3 |
| |
| ; (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 xmm5,xmm6 ; xmm5=CbH |
| movdqa xmm2,xmm4 ; xmm2=CbL |
| paddw xmm6,xmm6 ; xmm6=2*CbH |
| paddw xmm4,xmm4 ; xmm4=2*CbL |
| movdqa xmm1,xmm7 ; xmm1=CrH |
| movdqa xmm3,xmm0 ; xmm3=CrL |
| paddw xmm7,xmm7 ; xmm7=2*CrH |
| paddw xmm0,xmm0 ; xmm0=2*CrL |
| |
| pmulhw xmm6,[GOTOFF(eax,PW_MF0228)] ; xmm6=(2*CbH * -FIX(0.22800)) |
| pmulhw xmm4,[GOTOFF(eax,PW_MF0228)] ; xmm4=(2*CbL * -FIX(0.22800)) |
| pmulhw xmm7,[GOTOFF(eax,PW_F0402)] ; xmm7=(2*CrH * FIX(0.40200)) |
| pmulhw xmm0,[GOTOFF(eax,PW_F0402)] ; xmm0=(2*CrL * FIX(0.40200)) |
| |
| paddw xmm6,[GOTOFF(eax,PW_ONE)] |
| paddw xmm4,[GOTOFF(eax,PW_ONE)] |
| psraw xmm6,1 ; xmm6=(CbH * -FIX(0.22800)) |
| psraw xmm4,1 ; xmm4=(CbL * -FIX(0.22800)) |
| paddw xmm7,[GOTOFF(eax,PW_ONE)] |
| paddw xmm0,[GOTOFF(eax,PW_ONE)] |
| psraw xmm7,1 ; xmm7=(CrH * FIX(0.40200)) |
| psraw xmm0,1 ; xmm0=(CrL * FIX(0.40200)) |
| |
| paddw xmm6,xmm5 |
| paddw xmm4,xmm2 |
| paddw xmm6,xmm5 ; xmm6=(CbH * FIX(1.77200))=(B-Y)H |
| paddw xmm4,xmm2 ; xmm4=(CbL * FIX(1.77200))=(B-Y)L |
| paddw xmm7,xmm1 ; xmm7=(CrH * FIX(1.40200))=(R-Y)H |
| paddw xmm0,xmm3 ; xmm0=(CrL * FIX(1.40200))=(R-Y)L |
| |
| movdqa XMMWORD [wk(0)], xmm6 ; wk(0)=(B-Y)H |
| movdqa XMMWORD [wk(1)], xmm7 ; wk(1)=(R-Y)H |
| |
| movdqa xmm6,xmm5 |
| movdqa xmm7,xmm2 |
| punpcklwd xmm5,xmm1 |
| punpckhwd xmm6,xmm1 |
| pmaddwd xmm5,[GOTOFF(eax,PW_MF0344_F0285)] |
| pmaddwd xmm6,[GOTOFF(eax,PW_MF0344_F0285)] |
| punpcklwd xmm2,xmm3 |
| punpckhwd xmm7,xmm3 |
| pmaddwd xmm2,[GOTOFF(eax,PW_MF0344_F0285)] |
| pmaddwd xmm7,[GOTOFF(eax,PW_MF0344_F0285)] |
| |
| paddd xmm5,[GOTOFF(eax,PD_ONEHALF)] |
| paddd xmm6,[GOTOFF(eax,PD_ONEHALF)] |
| psrad xmm5,SCALEBITS |
| psrad xmm6,SCALEBITS |
| paddd xmm2,[GOTOFF(eax,PD_ONEHALF)] |
| paddd xmm7,[GOTOFF(eax,PD_ONEHALF)] |
| psrad xmm2,SCALEBITS |
| psrad xmm7,SCALEBITS |
| |
| packssdw xmm5,xmm6 ; xmm5=CbH*-FIX(0.344)+CrH*FIX(0.285) |
| packssdw xmm2,xmm7 ; xmm2=CbL*-FIX(0.344)+CrL*FIX(0.285) |
| psubw xmm5,xmm1 ; xmm5=CbH*-FIX(0.344)+CrH*-FIX(0.714)=(G-Y)H |
| psubw xmm2,xmm3 ; xmm2=CbL*-FIX(0.344)+CrL*-FIX(0.714)=(G-Y)L |
| |
| movdqa XMMWORD [wk(2)], xmm5 ; wk(2)=(G-Y)H |
| |
| mov al,2 ; Yctr |
| jmp short .Yloop_1st |
| alignx 16,7 |
| |
| .Yloop_2nd: |
| movdqa xmm0, XMMWORD [wk(1)] ; xmm0=(R-Y)H |
| movdqa xmm2, XMMWORD [wk(2)] ; xmm2=(G-Y)H |
| movdqa xmm4, XMMWORD [wk(0)] ; xmm4=(B-Y)H |
| alignx 16,7 |
| |
| .Yloop_1st: |
| movdqa xmm7, XMMWORD [esi] ; xmm7=Y(0123456789ABCDEF) |
| |
| pcmpeqw xmm6,xmm6 |
| psrlw xmm6,BYTE_BIT ; xmm6={0xFF 0x00 0xFF 0x00 ..} |
| pand xmm6,xmm7 ; xmm6=Y(02468ACE)=YE |
| psrlw xmm7,BYTE_BIT ; xmm7=Y(13579BDF)=YO |
| |
| movdqa xmm1,xmm0 ; xmm1=xmm0=(R-Y)(L/H) |
| movdqa xmm3,xmm2 ; xmm3=xmm2=(G-Y)(L/H) |
| movdqa xmm5,xmm4 ; xmm5=xmm4=(B-Y)(L/H) |
| |
| paddw xmm0,xmm6 ; xmm0=((R-Y)+YE)=RE=R(02468ACE) |
| paddw xmm1,xmm7 ; xmm1=((R-Y)+YO)=RO=R(13579BDF) |
| packuswb xmm0,xmm0 ; xmm0=R(02468ACE********) |
| packuswb xmm1,xmm1 ; xmm1=R(13579BDF********) |
| |
| paddw xmm2,xmm6 ; xmm2=((G-Y)+YE)=GE=G(02468ACE) |
| paddw xmm3,xmm7 ; xmm3=((G-Y)+YO)=GO=G(13579BDF) |
| packuswb xmm2,xmm2 ; xmm2=G(02468ACE********) |
| packuswb xmm3,xmm3 ; xmm3=G(13579BDF********) |
| |
| paddw xmm4,xmm6 ; xmm4=((B-Y)+YE)=BE=B(02468ACE) |
| paddw xmm5,xmm7 ; xmm5=((B-Y)+YO)=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 ecx, byte SIZEOF_XMMWORD |
| jb short .column_st32 |
| |
| test edi, SIZEOF_XMMWORD-1 |
| jnz short .out1 |
| ; --(aligned)------------------- |
| movntdq XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA |
| movntdq XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD |
| movntdq XMMWORD [edi+2*SIZEOF_XMMWORD], xmmF |
| jmp short .out0 |
| .out1: ; --(unaligned)----------------- |
| movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA |
| movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD |
| movdqu XMMWORD [edi+2*SIZEOF_XMMWORD], xmmF |
| .out0: |
| add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr |
| sub ecx, byte SIZEOF_XMMWORD |
| jz near .endcolumn |
| |
| add esi, byte SIZEOF_XMMWORD ; inptr0 |
| dec al ; Yctr |
| jnz near .Yloop_2nd |
| |
| add ebx, byte SIZEOF_XMMWORD ; inptr1 |
| add edx, byte SIZEOF_XMMWORD ; inptr2 |
| jmp near .columnloop |
| alignx 16,7 |
| |
| .column_st32: |
| lea ecx, [ecx+ecx*2] ; imul ecx, RGB_PIXELSIZE |
| cmp ecx, byte 2*SIZEOF_XMMWORD |
| jb short .column_st16 |
| movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA |
| movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD |
| add edi, byte 2*SIZEOF_XMMWORD ; outptr |
| movdqa xmmA,xmmF |
| sub ecx, byte 2*SIZEOF_XMMWORD |
| jmp short .column_st15 |
| .column_st16: |
| cmp ecx, byte SIZEOF_XMMWORD |
| jb short .column_st15 |
| movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA |
| add edi, byte SIZEOF_XMMWORD ; outptr |
| movdqa xmmA,xmmD |
| sub ecx, byte SIZEOF_XMMWORD |
| .column_st15: |
| ; Store the lower 8 bytes of xmmA to the output when it has enough |
| ; space. |
| cmp ecx, byte SIZEOF_MMWORD |
| jb short .column_st7 |
| movq XMM_MMWORD [edi], xmmA |
| add edi, byte SIZEOF_MMWORD |
| sub ecx, 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 ecx, byte SIZEOF_DWORD |
| jb short .column_st3 |
| movd XMM_DWORD [edi], xmmA |
| add edi, byte SIZEOF_DWORD |
| sub ecx, byte SIZEOF_DWORD |
| psrldq xmmA, SIZEOF_DWORD |
| .column_st3: |
| ; Store the lower 2 bytes of eax to the output when it has enough |
| ; space. |
| movd eax, xmmA |
| cmp ecx, byte SIZEOF_WORD |
| jb short .column_st1 |
| mov WORD [edi], ax |
| add edi, byte SIZEOF_WORD |
| sub ecx, byte SIZEOF_WORD |
| shr eax, 16 |
| .column_st1: |
| ; Store the lower 1 byte of eax to the output when it has enough |
| ; space. |
| test ecx, ecx |
| jz short .endcolumn |
| mov BYTE [edi], 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 ecx, byte SIZEOF_XMMWORD |
| jb short .column_st32 |
| |
| test edi, SIZEOF_XMMWORD-1 |
| jnz short .out1 |
| ; --(aligned)------------------- |
| movntdq XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA |
| movntdq XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD |
| movntdq XMMWORD [edi+2*SIZEOF_XMMWORD], xmmC |
| movntdq XMMWORD [edi+3*SIZEOF_XMMWORD], xmmH |
| jmp short .out0 |
| .out1: ; --(unaligned)----------------- |
| movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA |
| movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD |
| movdqu XMMWORD [edi+2*SIZEOF_XMMWORD], xmmC |
| movdqu XMMWORD [edi+3*SIZEOF_XMMWORD], xmmH |
| .out0: |
| add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr |
| sub ecx, byte SIZEOF_XMMWORD |
| jz near .endcolumn |
| |
| add esi, byte SIZEOF_XMMWORD ; inptr0 |
| dec al ; Yctr |
| jnz near .Yloop_2nd |
| |
| add ebx, byte SIZEOF_XMMWORD ; inptr1 |
| add edx, byte SIZEOF_XMMWORD ; inptr2 |
| jmp near .columnloop |
| alignx 16,7 |
| |
| .column_st32: |
| cmp ecx, byte SIZEOF_XMMWORD/2 |
| jb short .column_st16 |
| movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA |
| movdqu XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD |
| add edi, byte 2*SIZEOF_XMMWORD ; outptr |
| movdqa xmmA,xmmC |
| movdqa xmmD,xmmH |
| sub ecx, byte SIZEOF_XMMWORD/2 |
| .column_st16: |
| cmp ecx, byte SIZEOF_XMMWORD/4 |
| jb short .column_st15 |
| movdqu XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA |
| add edi, byte SIZEOF_XMMWORD ; outptr |
| movdqa xmmA,xmmD |
| sub ecx, byte SIZEOF_XMMWORD/4 |
| .column_st15: |
| ; Store two pixels (8 bytes) of xmmA to the output when it has enough |
| ; space. |
| cmp ecx, byte SIZEOF_XMMWORD/8 |
| jb short .column_st7 |
| movq XMM_MMWORD [edi], xmmA |
| add edi, byte SIZEOF_XMMWORD/8*4 |
| sub ecx, 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 ecx, ecx |
| jz short .endcolumn |
| movd XMM_DWORD [edi], xmmA |
| |
| %endif ; RGB_PIXELSIZE ; --------------- |
| |
| .endcolumn: |
| sfence ; flush the write buffer |
| |
| .return: |
| pop edi |
| pop esi |
| ; pop edx ; need not be preserved |
| ; pop ecx ; need not be preserved |
| pop ebx |
| mov esp,ebp ; esp <- aligned ebp |
| pop esp ; esp <- original ebp |
| pop ebp |
| ret |
| |
| ; -------------------------------------------------------------------------- |
| ; |
| ; Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical. |
| ; |
| ; GLOBAL(void) |
| ; jsimd_h2v2_merged_upsample_sse2 (JDIMENSION output_width, |
| ; JSAMPIMAGE input_buf, |
| ; JDIMENSION in_row_group_ctr, |
| ; JSAMPARRAY output_buf); |
| ; |
| |
| %define output_width(b) (b)+8 ; JDIMENSION output_width |
| %define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf |
| %define in_row_group_ctr(b) (b)+16 ; JDIMENSION in_row_group_ctr |
| %define output_buf(b) (b)+20 ; JSAMPARRAY output_buf |
| |
| align 16 |
| global EXTN(jsimd_h2v2_merged_upsample_sse2) |
| |
| EXTN(jsimd_h2v2_merged_upsample_sse2): |
| push ebp |
| mov ebp,esp |
| push ebx |
| ; push ecx ; need not be preserved |
| ; push edx ; need not be preserved |
| push esi |
| push edi |
| |
| mov eax, POINTER [output_width(ebp)] |
| |
| mov edi, JSAMPIMAGE [input_buf(ebp)] |
| mov ecx, JDIMENSION [in_row_group_ctr(ebp)] |
| mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY] |
| mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY] |
| mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY] |
| mov edi, JSAMPARRAY [output_buf(ebp)] |
| lea esi, [esi+ecx*SIZEOF_JSAMPROW] |
| |
| push edx ; inptr2 |
| push ebx ; inptr1 |
| push esi ; inptr00 |
| mov ebx,esp |
| |
| push edi ; output_buf (outptr0) |
| push ecx ; in_row_group_ctr |
| push ebx ; input_buf |
| push eax ; output_width |
| |
| call near EXTN(jsimd_h2v1_merged_upsample_sse2) |
| |
| add esi, byte SIZEOF_JSAMPROW ; inptr01 |
| add edi, byte SIZEOF_JSAMPROW ; outptr1 |
| mov POINTER [ebx+0*SIZEOF_POINTER], esi |
| mov POINTER [ebx-1*SIZEOF_POINTER], edi |
| |
| call near EXTN(jsimd_h2v1_merged_upsample_sse2) |
| |
| add esp, byte 7*SIZEOF_DWORD |
| |
| pop edi |
| pop esi |
| ; pop edx ; need not be preserved |
| ; pop ecx ; need not be preserved |
| pop ebx |
| pop ebp |
| ret |
| |
| ; For some reason, the OS X linker does not honor the request to align the |
| ; segment unless we do this. |
| align 16 |
