; ; jdmrgext.asm - merged upsampling/color conversion (MMX) ; ; Copyright 2009 Pierre Ossman for Cendio AB ; ; 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_mmx (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_MMWORD ; mmword wk[WK_NUM] %define WK_NUM 3 %define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr align 16 global EXTN(jsimd_h2v1_merged_upsample_mmx) EXTN(jsimd_h2v1_merged_upsample_mmx): push ebp mov eax,esp ; eax = original ebp sub esp, byte 4 and esp, byte (-SIZEOF_MMWORD) ; align to 64 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) movq mm6, MMWORD [ebx] ; mm6=Cb(01234567) movq mm7, MMWORD [edx] ; mm7=Cr(01234567) pxor mm1,mm1 ; mm1=(all 0's) pcmpeqw mm3,mm3 psllw mm3,7 ; mm3={0xFF80 0xFF80 0xFF80 0xFF80} movq mm4,mm6 punpckhbw mm6,mm1 ; mm6=Cb(4567)=CbH punpcklbw mm4,mm1 ; mm4=Cb(0123)=CbL movq mm0,mm7 punpckhbw mm7,mm1 ; mm7=Cr(4567)=CrH punpcklbw mm0,mm1 ; mm0=Cr(0123)=CrL paddw mm6,mm3 paddw mm4,mm3 paddw mm7,mm3 paddw mm0,mm3 ; (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 movq mm5,mm6 ; mm5=CbH movq mm2,mm4 ; mm2=CbL paddw mm6,mm6 ; mm6=2*CbH paddw mm4,mm4 ; mm4=2*CbL movq mm1,mm7 ; mm1=CrH movq mm3,mm0 ; mm3=CrL paddw mm7,mm7 ; mm7=2*CrH paddw mm0,mm0 ; mm0=2*CrL pmulhw mm6,[GOTOFF(eax,PW_MF0228)] ; mm6=(2*CbH * -FIX(0.22800)) pmulhw mm4,[GOTOFF(eax,PW_MF0228)] ; mm4=(2*CbL * -FIX(0.22800)) pmulhw mm7,[GOTOFF(eax,PW_F0402)] ; mm7=(2*CrH * FIX(0.40200)) pmulhw mm0,[GOTOFF(eax,PW_F0402)] ; mm0=(2*CrL * FIX(0.40200)) paddw mm6,[GOTOFF(eax,PW_ONE)] paddw mm4,[GOTOFF(eax,PW_ONE)] psraw mm6,1 ; mm6=(CbH * -FIX(0.22800)) psraw mm4,1 ; mm4=(CbL * -FIX(0.22800)) paddw mm7,[GOTOFF(eax,PW_ONE)] paddw mm0,[GOTOFF(eax,PW_ONE)] psraw mm7,1 ; mm7=(CrH * FIX(0.40200)) psraw mm0,1 ; mm0=(CrL * FIX(0.40200)) paddw mm6,mm5 paddw mm4,mm2 paddw mm6,mm5 ; mm6=(CbH * FIX(1.77200))=(B-Y)H paddw mm4,mm2 ; mm4=(CbL * FIX(1.77200))=(B-Y)L paddw mm7,mm1 ; mm7=(CrH * FIX(1.40200))=(R-Y)H paddw mm0,mm3 ; mm0=(CrL * FIX(1.40200))=(R-Y)L movq MMWORD [wk(0)], mm6 ; wk(0)=(B-Y)H movq MMWORD [wk(1)], mm7 ; wk(1)=(R-Y)H movq mm6,mm5 movq mm7,mm2 punpcklwd mm5,mm1 punpckhwd mm6,mm1 pmaddwd mm5,[GOTOFF(eax,PW_MF0344_F0285)] pmaddwd mm6,[GOTOFF(eax,PW_MF0344_F0285)] punpcklwd mm2,mm3 punpckhwd mm7,mm3 pmaddwd mm2,[GOTOFF(eax,PW_MF0344_F0285)] pmaddwd mm7,[GOTOFF(eax,PW_MF0344_F0285)] paddd mm5,[GOTOFF(eax,PD_ONEHALF)] paddd mm6,[GOTOFF(eax,PD_ONEHALF)] psrad mm5,SCALEBITS psrad mm6,SCALEBITS paddd mm2,[GOTOFF(eax,PD_ONEHALF)] paddd mm7,[GOTOFF(eax,PD_ONEHALF)] psrad mm2,SCALEBITS psrad mm7,SCALEBITS packssdw mm5,mm6 ; mm5=CbH*-FIX(0.344)+CrH*FIX(0.285) packssdw mm2,mm7 ; mm2=CbL*-FIX(0.344)+CrL*FIX(0.285) psubw mm5,mm1 ; mm5=CbH*-FIX(0.344)+CrH*-FIX(0.714)=(G-Y)H psubw mm2,mm3 ; mm2=CbL*-FIX(0.344)+CrL*-FIX(0.714)=(G-Y)L movq MMWORD [wk(2)], mm5 ; wk(2)=(G-Y)H mov al,2 ; Yctr jmp short .Yloop_1st alignx 16,7 .Yloop_2nd: movq mm0, MMWORD [wk(1)] ; mm0=(R-Y)H movq mm2, MMWORD [wk(2)] ; mm2=(G-Y)H movq mm4, MMWORD [wk(0)] ; mm4=(B-Y)H alignx 16,7 .Yloop_1st: movq mm7, MMWORD [esi] ; mm7=Y(01234567) pcmpeqw mm6,mm6 psrlw mm6,BYTE_BIT ; mm6={0xFF 0x00 0xFF 0x00 ..} pand mm6,mm7 ; mm6=Y(0246)=YE psrlw mm7,BYTE_BIT ; mm7=Y(1357)=YO movq mm1,mm0 ; mm1=mm0=(R-Y)(L/H) movq mm3,mm2 ; mm3=mm2=(G-Y)(L/H) movq mm5,mm4 ; mm5=mm4=(B-Y)(L/H) paddw mm0,mm6 ; mm0=((R-Y)+YE)=RE=(R0 R2 R4 R6) paddw mm1,mm7 ; mm1=((R-Y)+YO)=RO=(R1 R3 R5 R7) packuswb mm0,mm0 ; mm0=(R0 R2 R4 R6 ** ** ** **) packuswb mm1,mm1 ; mm1=(R1 R3 R5 R7 ** ** ** **) paddw mm2,mm6 ; mm2=((G-Y)+YE)=GE=(G0 G2 G4 G6) paddw mm3,mm7 ; mm3=((G-Y)+YO)=GO=(G1 G3 G5 G7) packuswb mm2,mm2 ; mm2=(G0 G2 G4 G6 ** ** ** **) packuswb mm3,mm3 ; mm3=(G1 G3 G5 G7 ** ** ** **) paddw mm4,mm6 ; mm4=((B-Y)+YE)=BE=(B0 B2 B4 B6) paddw mm5,mm7 ; mm5=((B-Y)+YO)=BO=(B1 B3 B5 B7) packuswb mm4,mm4 ; mm4=(B0 B2 B4 B6 ** ** ** **) packuswb mm5,mm5 ; mm5=(B1 B3 B5 B7 ** ** ** **) %if RGB_PIXELSIZE == 3 ; --------------- ; mmA=(00 02 04 06 ** ** ** **), mmB=(01 03 05 07 ** ** ** **) ; mmC=(10 12 14 16 ** ** ** **), mmD=(11 13 15 17 ** ** ** **) ; mmE=(20 22 24 26 ** ** ** **), mmF=(21 23 25 27 ** ** ** **) ; mmG=(** ** ** ** ** ** ** **), mmH=(** ** ** ** ** ** ** **) punpcklbw mmA,mmC ; mmA=(00 10 02 12 04 14 06 16) punpcklbw mmE,mmB ; mmE=(20 01 22 03 24 05 26 07) punpcklbw mmD,mmF ; mmD=(11 21 13 23 15 25 17 27) movq mmG,mmA movq mmH,mmA punpcklwd mmA,mmE ; mmA=(00 10 20 01 02 12 22 03) punpckhwd mmG,mmE ; mmG=(04 14 24 05 06 16 26 07) psrlq mmH,2*BYTE_BIT ; mmH=(02 12 04 14 06 16 -- --) psrlq mmE,2*BYTE_BIT ; mmE=(22 03 24 05 26 07 -- --) movq mmC,mmD movq mmB,mmD punpcklwd mmD,mmH ; mmD=(11 21 02 12 13 23 04 14) punpckhwd mmC,mmH ; mmC=(15 25 06 16 17 27 -- --) psrlq mmB,2*BYTE_BIT ; mmB=(13 23 15 25 17 27 -- --) movq mmF,mmE punpcklwd mmE,mmB ; mmE=(22 03 13 23 24 05 15 25) punpckhwd mmF,mmB ; mmF=(26 07 17 27 -- -- -- --) punpckldq mmA,mmD ; mmA=(00 10 20 01 11 21 02 12) punpckldq mmE,mmG ; mmE=(22 03 13 23 04 14 24 05) punpckldq mmC,mmF ; mmC=(15 25 06 16 26 07 17 27) cmp ecx, byte SIZEOF_MMWORD jb short .column_st16 movq MMWORD [edi+0*SIZEOF_MMWORD], mmA movq MMWORD [edi+1*SIZEOF_MMWORD], mmE movq MMWORD [edi+2*SIZEOF_MMWORD], mmC sub ecx, byte SIZEOF_MMWORD jz near .endcolumn add edi, byte RGB_PIXELSIZE*SIZEOF_MMWORD ; outptr add esi, byte SIZEOF_MMWORD ; inptr0 dec al ; Yctr jnz near .Yloop_2nd add ebx, byte SIZEOF_MMWORD ; inptr1 add edx, byte SIZEOF_MMWORD ; inptr2 jmp near .columnloop alignx 16,7 .column_st16: lea ecx, [ecx+ecx*2] ; imul ecx, RGB_PIXELSIZE cmp ecx, byte 2*SIZEOF_MMWORD jb short .column_st8 movq MMWORD [edi+0*SIZEOF_MMWORD], mmA movq MMWORD [edi+1*SIZEOF_MMWORD], mmE movq mmA,mmC sub ecx, byte 2*SIZEOF_MMWORD add edi, byte 2*SIZEOF_MMWORD jmp short .column_st4 .column_st8: cmp ecx, byte SIZEOF_MMWORD jb short .column_st4 movq MMWORD [edi+0*SIZEOF_MMWORD], mmA movq mmA,mmE sub ecx, byte SIZEOF_MMWORD add edi, byte SIZEOF_MMWORD .column_st4: movd eax,mmA cmp ecx, byte SIZEOF_DWORD jb short .column_st2 mov DWORD [edi+0*SIZEOF_DWORD], eax psrlq mmA,DWORD_BIT movd eax,mmA sub ecx, byte SIZEOF_DWORD add edi, byte SIZEOF_DWORD .column_st2: cmp ecx, byte SIZEOF_WORD jb short .column_st1 mov WORD [edi+0*SIZEOF_WORD], ax shr eax,WORD_BIT sub ecx, byte SIZEOF_WORD add edi, byte SIZEOF_WORD .column_st1: cmp ecx, byte SIZEOF_BYTE jb short .endcolumn mov BYTE [edi+0*SIZEOF_BYTE], al %else ; RGB_PIXELSIZE == 4 ; ----------- %ifdef RGBX_FILLER_0XFF pcmpeqb mm6,mm6 ; mm6=(X0 X2 X4 X6 ** ** ** **) pcmpeqb mm7,mm7 ; mm7=(X1 X3 X5 X7 ** ** ** **) %else pxor mm6,mm6 ; mm6=(X0 X2 X4 X6 ** ** ** **) pxor mm7,mm7 ; mm7=(X1 X3 X5 X7 ** ** ** **) %endif ; mmA=(00 02 04 06 ** ** ** **), mmB=(01 03 05 07 ** ** ** **) ; mmC=(10 12 14 16 ** ** ** **), mmD=(11 13 15 17 ** ** ** **) ; mmE=(20 22 24 26 ** ** ** **), mmF=(21 23 25 27 ** ** ** **) ; mmG=(30 32 34 36 ** ** ** **), mmH=(31 33 35 37 ** ** ** **) punpcklbw mmA,mmC ; mmA=(00 10 02 12 04 14 06 16) punpcklbw mmE,mmG ; mmE=(20 30 22 32 24 34 26 36) punpcklbw mmB,mmD ; mmB=(01 11 03 13 05 15 07 17) punpcklbw mmF,mmH ; mmF=(21 31 23 33 25 35 27 37) movq mmC,mmA punpcklwd mmA,mmE ; mmA=(00 10 20 30 02 12 22 32) punpckhwd mmC,mmE ; mmC=(04 14 24 34 06 16 26 36) movq mmG,mmB punpcklwd mmB,mmF ; mmB=(01 11 21 31 03 13 23 33) punpckhwd mmG,mmF ; mmG=(05 15 25 35 07 17 27 37) movq mmD,mmA punpckldq mmA,mmB ; mmA=(00 10 20 30 01 11 21 31) punpckhdq mmD,mmB ; mmD=(02 12 22 32 03 13 23 33) movq mmH,mmC punpckldq mmC,mmG ; mmC=(04 14 24 34 05 15 25 35) punpckhdq mmH,mmG ; mmH=(06 16 26 36 07 17 27 37) cmp ecx, byte SIZEOF_MMWORD jb short .column_st16 movq MMWORD [edi+0*SIZEOF_MMWORD], mmA movq MMWORD [edi+1*SIZEOF_MMWORD], mmD movq MMWORD [edi+2*SIZEOF_MMWORD], mmC movq MMWORD [edi+3*SIZEOF_MMWORD], mmH sub ecx, byte SIZEOF_MMWORD jz short .endcolumn add edi, byte RGB_PIXELSIZE*SIZEOF_MMWORD ; outptr add esi, byte SIZEOF_MMWORD ; inptr0 dec al ; Yctr jnz near .Yloop_2nd add ebx, byte SIZEOF_MMWORD ; inptr1 add edx, byte SIZEOF_MMWORD ; inptr2 jmp near .columnloop alignx 16,7 .column_st16: cmp ecx, byte SIZEOF_MMWORD/2 jb short .column_st8 movq MMWORD [edi+0*SIZEOF_MMWORD], mmA movq MMWORD [edi+1*SIZEOF_MMWORD], mmD movq mmA,mmC movq mmD,mmH sub ecx, byte SIZEOF_MMWORD/2 add edi, byte 2*SIZEOF_MMWORD .column_st8: cmp ecx, byte SIZEOF_MMWORD/4 jb short .column_st4 movq MMWORD [edi+0*SIZEOF_MMWORD], mmA movq mmA,mmD sub ecx, byte SIZEOF_MMWORD/4 add edi, byte 1*SIZEOF_MMWORD .column_st4: cmp ecx, byte SIZEOF_MMWORD/8 jb short .endcolumn movd DWORD [edi+0*SIZEOF_DWORD], mmA %endif ; RGB_PIXELSIZE ; --------------- .endcolumn: emms ; empty MMX state .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_mmx (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_mmx) EXTN(jsimd_h2v2_merged_upsample_mmx): 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, JDIMENSION [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_mmx) 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_mmx) 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