; ; jdmrgext.asm - merged upsampling/color conversion (MMX) ; ; Copyright 2009 Pierre Ossman for Cendio AB ; Copyright (C) 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 %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 32 GLOBAL_FUNCTION(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 32 GLOBAL_FUNCTION(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 32