| ; |
| ; jdmrgext.asm - merged upsampling/color conversion (MMX) |
| ; |
| ; Copyright 2009 Pierre Ossman <ossman@cendio.se> 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 |
| ; |
| ; [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 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 |
