📄 skl_mb_mmx.asm

📁 mpeg4编解码器
💻 ASM
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  movq mm4, [ecx+%1*32+ 0] ; Dst  punpckhbw mm1, mm7  punpckhbw mm3, mm7  movq mm5, [ecx+%1*32+ 8] ; Dst2  psubw mm4, mm0  psubw mm5, mm1  movq [ecx+%1*32+ 0], mm4  movq [ecx+%1*32+ 8], mm5  movq mm0, [ecx+%1*32+16] ; Dst  movq mm1, [ecx+%1*32+24] ; Dst2  psubw mm0, mm2  psubw mm1, mm3  movq [ecx+%1*32+16], mm0  movq [ecx+%1*32+24], mm1%endmacroalign 16Skl_Diff_16x8_8To16_MMX:   ;  89c  PROLOG0  pxor mm7, mm7  DIFF 0, 0  DIFF 4, 8  lea eax,[eax+2*edx]  DIFF 1, 0  DIFF 5, 8  lea eax,[eax+2*edx]  DIFF 2, 0  DIFF 6, 8  lea eax,[eax+2*edx]  DIFF 3, 0  DIFF 7, 8  retalign 16Skl_Diff_8x8_8To16_MMX:   ; 46c  PROLOG0  pxor mm7, mm7  DIFF 0, 0  lea eax,[eax+2*edx]  DIFF 1, 0  lea eax,[eax+2*edx]  DIFF 2, 0  lea eax,[eax+2*edx]  DIFF 3, 0  ret;//////////////////////////////////////////////////////////////////////%macro DIFF2 2  movq mm0, [eax+%2]     ; Src1  movq mm1, mm0  movq mm2, [eax+%2+edx]  movq mm3, mm2  punpcklbw mm0, mm7  punpcklbw mm2, mm7  movq mm4, [ebx+%2]     ; Src2    punpckhbw mm1, mm7  punpckhbw mm3, mm7    movq mm6, [ebx+%2+edx] ; Src2  movq mm5, mm4  punpcklbw mm4, mm7    punpckhbw mm5, mm7  psubw mm0, mm4  psubw mm1, mm5  movq mm4, mm6  movq [ecx+%1*32+ 0], mm0  punpcklbw mm6, mm7  punpckhbw mm4, mm7    movq [ecx+%1*32+ 8], mm1  psubw mm2, mm6  psubw mm3, mm4  movq [ecx+%1*32+16], mm2  movq [ecx+%1*32+24], mm3%endmacroalign 16Skl_Diff_16x8_88To16_MMX:   ; 101c;SKL_RDTSC_IN  push ebx  mov ecx, [esp+ 4 +4] ; Dst  mov eax, [esp+ 8 +4] ; Src1  mov ebx, [esp+12 +4] ; Src2  mov edx, [esp+16 +4] ; BpS  pxor mm7, mm7  DIFF2 0, 0  DIFF2 4, 8  lea eax,[eax+2*edx]  lea ebx,[ebx+2*edx]  DIFF2 1, 0  DIFF2 5, 8  lea eax,[eax+2*edx]  lea ebx,[ebx+2*edx]  DIFF2 2, 0  DIFF2 6, 8  lea eax,[eax+2*edx]  lea ebx,[ebx+2*edx]  DIFF2 3, 0  DIFF2 7, 8  pop ebx;SKL_RDTSC_OUT  retalign 16Skl_Diff_8x8_88To16_MMX:   ;56  push ebx  mov ecx, [esp+ 4 +4] ; Dst  mov eax, [esp+ 8 +4] ; Src1  mov ebx, [esp+12 +4] ; Src2  mov edx, [esp+16 +4] ; BpS  pxor mm7, mm7  DIFF2 0, 0  lea eax,[eax+2*edx]  lea ebx,[ebx+2*edx]  DIFF2 1, 0  lea eax,[eax+2*edx]  lea ebx,[ebx+2*edx]  DIFF2 2, 0  lea eax,[eax+2*edx]  lea ebx,[ebx+2*edx]  DIFF2 3, 0  pop ebx  ret;//////////////////////////////////////////////////////////////////////;//;// 8x8 -> 16x16 upsampling (16b);//;//////////////////////////////////////////////////////////////////////%macro MUL_PACK 4     ; %1/%2: regs   %3/%4: Up13/Up31  pmullw %1,  %3 ; [Up13]  pmullw mm4, %4 ; [Up31]  pmullw %2,  %3 ; [Up13]  pmullw mm5, %4 ; [Up31]  paddsw %1, [Cst2]  paddsw %2, [Cst2]  paddsw %1, mm4  paddsw %2, mm5%endmacro%macro COL03 3    ;%1/%2: regs, %3: row   -output: mm4/mm5  movq %1, [edx+%3*16+0*2]   ; %1  = 0|1|2|3  movq %2,[edx+%3*16+1*2]    ; %2  = 1|2|3|4  movq mm5, %1               ; mm5 = 0|1|2|3  movq mm4, %1               ; mm4 = 0|1|2|3  punpckhwd mm5,%2           ; mm5 = 2|3|3|4  punpcklwd mm4,%2           ; mm4 = 0|1|1|2  punpcklwd %1,%1            ; %1  = 0|0|1|1  punpcklwd %2, mm5          ; %2  = 1|2|2|3  punpcklwd %1, mm4          ; %1  = 0|0|0|1%endmacro%macro COL47 3    ;%1-%2: regs, %3: row   -output: mm4/mm5  movq mm5, [edx+%3*16+4*2]   ; mm5 = 4|5|6|7  movq %1, [edx+%3*16+3*2]    ; %1  = 3|4|5|6  movq %2,  mm5               ; %2  = 4|5|6|7  movq mm4, mm5               ; mm4 = 4|5|6|7  punpckhwd %2, %2            ; %2  = 6|6|7|7    punpckhwd mm5, %2           ; mm5 = 6|7|7|7  movq %2,  %1                ; %2  = 3|4|5|6    punpcklwd %1, mm4           ; %1  = 3|4|4|5  punpckhwd %2, mm4           ; %2  = 5|6|6|7  punpcklwd mm4, %2           ; mm4 = 4|5|5|6%endmacro%macro MIX_ROWS 4   ; %1/%2:prev %3/4:cur (preserved)  mm4/mm5: output  ; we need to perform: (%1,%3) -> (%1 = 3*%1+%3, mm4 = 3*%3+%1), %3 preserved.  movq mm4, [Cst3]  movq mm5, [Cst3]  pmullw mm4, %3  pmullw mm5, %4  paddsw mm4, %1  paddsw mm5, %2  pmullw %1, [Cst3]  pmullw %2, [Cst3]  paddsw %1, %3  paddsw %2, %4%endmacro;//////////////////////////////////////////////////////////////////////  ; Note: we can use ">>2" instead of "/4" here, since we   ; are (supposed to be) averaging positive values%macro STORE_1 2  psraw %1, 2  psraw %2, 2  packuswb %1,%2     movq [ecx], %1%endmacro%macro STORE_2 2    ; pack and store (%1,%2) + (mm4,mm5)  psraw %1, 4  psraw %2, 4  psraw mm4, 4  psraw mm5, 4  packuswb %1,%2  packuswb mm4, mm5  movq [ecx], %1  movq [ecx+eax], mm4  lea ecx, [ecx+2*eax]%endmacroalign 16Skl_Copy_Upsampled_8x8_16To8_MMX:  ; 344c  mov ecx, [esp+4]  ; Dst  mov edx, [esp+8]  ; Src  mov eax, [esp+12] ; BpS  movq mm6, [Up13]  movq mm7, [Up31]  COL03 mm0, mm1, 0  MUL_PACK mm0,mm1, mm6, mm7  movq mm4, mm0  movq mm5, mm1  STORE_1 mm4, mm5  add ecx, eax  COL03 mm2, mm3, 1  MUL_PACK mm2,mm3, mm6, mm7  MIX_ROWS mm0, mm1, mm2, mm3  STORE_2 mm0, mm1  COL03 mm0, mm1, 2  MUL_PACK mm0,mm1, mm6, mm7  MIX_ROWS mm2, mm3, mm0, mm1  STORE_2 mm2, mm3  COL03 mm2, mm3, 3  MUL_PACK mm2,mm3, mm6, mm7  MIX_ROWS mm0, mm1, mm2, mm3  STORE_2 mm0, mm1  COL03 mm0, mm1, 4  MUL_PACK mm0,mm1, mm6, mm7  MIX_ROWS mm2, mm3, mm0, mm1  STORE_2 mm2, mm3  COL03 mm2, mm3, 5  MUL_PACK mm2,mm3, mm6, mm7  MIX_ROWS mm0, mm1, mm2, mm3  STORE_2 mm0, mm1  COL03 mm0, mm1, 6  MUL_PACK mm0,mm1, mm6, mm7  MIX_ROWS mm2, mm3, mm0, mm1  STORE_2 mm2, mm3  COL03 mm2, mm3, 7  MUL_PACK mm2,mm3, mm6, mm7  MIX_ROWS mm0, mm1, mm2, mm3  STORE_2 mm0, mm1  STORE_1 mm2, mm3  mov ecx, [esp+4]  add ecx, 8  COL47 mm0, mm1, 0  MUL_PACK mm0,mm1, mm6, mm7  movq mm4, mm0  movq mm5, mm1  STORE_1 mm4, mm5  add ecx, eax  COL47 mm2, mm3, 1  MUL_PACK mm2,mm3, mm6, mm7  MIX_ROWS mm0, mm1, mm2, mm3  STORE_2 mm0, mm1  COL47 mm0, mm1, 2  MUL_PACK mm0,mm1, mm6, mm7  MIX_ROWS mm2, mm3, mm0, mm1  STORE_2 mm2, mm3  COL47 mm2, mm3, 3  MUL_PACK mm2,mm3, mm6, mm7  MIX_ROWS mm0, mm1, mm2, mm3  STORE_2 mm0, mm1  COL47 mm0, mm1, 4  MUL_PACK mm0,mm1, mm6, mm7  MIX_ROWS mm2, mm3, mm0, mm1  STORE_2 mm2, mm3  COL47 mm2, mm3, 5  MUL_PACK mm2,mm3, mm6, mm7  MIX_ROWS mm0, mm1, mm2, mm3  STORE_2 mm0, mm1  COL47 mm0, mm1, 6  MUL_PACK mm0,mm1, mm6, mm7  MIX_ROWS mm2, mm3, mm0, mm1  STORE_2 mm2, mm3  COL47 mm2, mm3, 7  MUL_PACK mm2,mm3, mm6, mm7  MIX_ROWS mm0, mm1, mm2, mm3  STORE_2 mm0, mm1  STORE_1 mm2, mm3  ret;//////////////////////////////////////////////////////////////////////    ; Note: grrr... the 'pcmpgtw' stuff are the "/4" and "/16" operators    ; implemented with ">>2" and ">>4" using:     ;       x/4  = ( (x-(x<0))>>2 ) + (x<0)    ;       x/16 = ( (x-(x<0))>>4 ) + (x<0)%macro STORE_ADD_1 2    ; We substract the rounder '2' for corner pixels,    ; since when 'x' is negative, (x*4 + 2)/4 is *not*    ; equal to 'x'. In fact, the correct relation is:    ;         (x*4 + 2)/4 = x - (x<0)    ; So, better revert to (x*4)/4 = x.  psubsw %1, [Cst2000]  psubsw %2, [Cst0002]  pxor mm6, mm6  pxor mm7, mm7  pcmpgtw mm6, %1  pcmpgtw mm7, %2  paddsw %1, mm6  paddsw %2, mm7  psraw %1, 2  psraw %2, 2  psubsw %1, mm6  psubsw %2, mm7    ; mix with destination [ecx]  movq mm6, [ecx]  movq mm7, [ecx]  punpcklbw mm6, [Cst0]  punpckhbw mm7, [Cst0]  paddsw %1, mm6  paddsw %2, mm7  packuswb %1,%2  movq [ecx], %1%endmacro%macro STORE_ADD_2 2  pxor mm6, mm6  pxor mm7, mm7  pcmpgtw mm6, %1  pcmpgtw mm7, %2  paddsw %1, mm6  paddsw %2, mm7  psraw %1, 4  psraw %2, 4  psubsw %1, mm6  psubsw %2, mm7  pxor mm6, mm6  pxor mm7, mm7  pcmpgtw mm6, mm4  pcmpgtw mm7, mm5  paddsw mm4, mm6  paddsw mm5, mm7  psraw mm4, 4  psraw mm5, 4  psubsw mm4, mm6  psubsw mm5, mm7    ; mix with destination  movq mm6, [ecx]  movq mm7, [ecx]  punpcklbw mm6, [Cst0]  punpckhbw mm7, [Cst0]  paddsw %1, mm6  paddsw %2, mm7  movq mm6, [ecx+eax]  movq mm7, [ecx+eax]  punpcklbw mm6, [Cst0]  punpckhbw mm7, [Cst0]  paddsw mm4, mm6  paddsw mm5, mm7  packuswb %1,%2  packuswb mm4, mm5  movq [ecx], %1  movq [ecx+eax], mm4  lea ecx, [ecx+2*eax]%endmacroalign 16Skl_Add_Upsampled_8x8_16To8_MMX:  ; 579c  mov ecx, [esp+4]  ; Dst  mov edx, [esp+8]  ; Src  mov eax, [esp+12] ; BpS  COL03 mm0, mm1, 0  MUL_PACK mm0,mm1, [Up13], [Up31]    movq mm4, mm0  movq mm5, mm1  STORE_ADD_1 mm4, mm5  add ecx, eax  COL03 mm2, mm3, 1  MUL_PACK mm2,mm3, [Up13], [Up31]  MIX_ROWS mm0, mm1, mm2, mm3  STORE_ADD_2 mm0, mm1  COL03 mm0, mm1, 2  MUL_PACK mm0,mm1, [Up13], [Up31]  MIX_ROWS mm2, mm3, mm0, mm1  STORE_ADD_2 mm2, mm3  COL03 mm2, mm3, 3  MUL_PACK mm2,mm3, [Up13], [Up31]  MIX_ROWS mm0, mm1, mm2, mm3  STORE_ADD_2 mm0, mm1  COL03 mm0, mm1, 4  MUL_PACK mm0,mm1, [Up13], [Up31]  MIX_ROWS mm2, mm3, mm0, mm1  STORE_ADD_2 mm2, mm3  COL03 mm2, mm3, 5  MUL_PACK mm2,mm3, [Up13], [Up31]  MIX_ROWS mm0, mm1, mm2, mm3  STORE_ADD_2 mm0, mm1  COL03 mm0, mm1, 6  MUL_PACK mm0,mm1, [Up13], [Up31]  MIX_ROWS mm2, mm3, mm0, mm1  STORE_ADD_2 mm2, mm3  COL03 mm2, mm3, 7  MUL_PACK mm2,mm3, [Up13], [Up31]  MIX_ROWS mm0, mm1, mm2, mm3  STORE_ADD_2 mm0, mm1  STORE_ADD_1 mm2, mm3  mov ecx, [esp+4]  add ecx, 8  COL47 mm0, mm1, 0  MUL_PACK mm0,mm1, [Up13], [Up31]    movq mm4, mm0  movq mm5, mm1    STORE_ADD_1 mm4, mm5  add ecx, eax  COL47 mm2, mm3, 1  MUL_PACK mm2,mm3, [Up13], [Up31]  MIX_ROWS mm0, mm1, mm2, mm3  STORE_ADD_2 mm0, mm1  COL47 mm0, mm1, 2  MUL_PACK mm0,mm1, [Up13], [Up31]  MIX_ROWS mm2, mm3, mm0, mm1  STORE_ADD_2 mm2, mm3  COL47 mm2, mm3, 3  MUL_PACK mm2,mm3, [Up13], [Up31]  MIX_ROWS mm0, mm1, mm2, mm3  STORE_ADD_2 mm0, mm1  COL47 mm0, mm1, 4  MUL_PACK mm0,mm1, [Up13], [Up31]  MIX_ROWS mm2, mm3, mm0, mm1  STORE_ADD_2 mm2, mm3  COL47 mm2, mm3, 5  MUL_PACK mm2,mm3, [Up13], [Up31]  MIX_ROWS mm0, mm1, mm2, mm3  STORE_ADD_2 mm0, mm1  COL47 mm0, mm1, 6  MUL_PACK mm0,mm1, [Up13], [Up31]  MIX_ROWS mm2, mm3, mm0, mm1  STORE_ADD_2 mm2, mm3  COL47 mm2, mm3, 7  MUL_PACK mm2,mm3, [Up13], [Up31]  MIX_ROWS mm0, mm1, mm2, mm3  STORE_ADD_2 mm0, mm1  STORE_ADD_1 mm2, mm3  ret;//////////////////////////////////////////////////////////////////////;//;// horizontal/vertical filtering: [x,y] -> [ (3x+y+2)>>2, (x+3y+2)>>2];// We use the trick: tmp = (x+y+2) -> [x = (tmp+2x)>>2, y = (tmp+2y)>>2];//;//////////////////////////////////////////////////////////////////////align 16Skl_HFilter_31_MMX:  push esi  push edi  mov esi, [esp+4  +8]  ; Src1  mov edi, [esp+8  +8]  ; Src2  mov eax, [esp+12 +8] ; Nb_Blks  lea eax,[eax*2]  movq mm5, [Cst2]  pxor mm7, mm7  lea esi, [esi+eax*4]  lea edi, [edi+eax*4]  neg eax.Loop:  ;12c  movd mm0, [esi+eax*4]    movd mm1, [edi+eax*4]  movq mm2, mm5    punpcklbw mm0, mm7  punpcklbw mm1, mm7  paddsw mm2, mm0  paddsw mm0, mm0  paddsw mm2, mm1  paddsw mm1, mm1  paddsw mm0, mm2  paddsw mm1, mm2  psraw mm0, 2  psraw mm1, 2  packuswb mm0, mm7  packuswb mm1, mm7  movd [esi+eax*4], mm0  movd [edi+eax*4], mm1  add eax,1  jl .Loop  pop edi  pop esi  ret  ; MMX is of no use here. Better use plain ASM. Moreover,  ; this is for the fun of ASM coding, coz' every modern compiler can  ; end up with a code that looks very much like this one...align 16Skl_VFilter_31_x86:  push esi  push edi  push ebx  push ebp  mov esi, [esp+4  +16]  ; Src1  mov edi, [esp+8  +16]  ; Src2  mov ebp, [esp+12 +16]  ; BpS  mov eax, [esp+16 +16]  ; Nb_Blks  lea eax,[eax*8].Loop:  ;7c  movzx ecx, byte [esi]  movzx edx, byte [edi]  lea ebx, [ecx+edx+2]  lea ecx,[ebx+2*ecx]  lea edx,[ebx+2*edx]  shr ecx,2  shr edx,2  mov [esi], cl  mov [edi], dl  lea esi, [esi+ebp]  lea edi, [edi+ebp]  dec eax  jg .Loop  pop ebp  pop ebx  pop edi  pop esi  ret  ; this one's just a little faster than gcc's code. Very little.align 16Skl_HFilter_31_x86:  push esi  push edi  push ebx  mov esi, [esp+4  +12]  ; Src1  mov edi, [esp+8  +12]  ; Src2  mov eax, [esp+12 +12]  ; Nb_Blks  lea eax,[eax*8]  lea esi, [esi+eax]  lea edi, [esi+eax]  neg eax.Loop:  ; 6c  movzx ecx, byte [esi+eax]  movzx edx, byte [edi+eax]  lea ebx, [ecx+edx+2]  lea ecx,[ebx+2*ecx]  lea edx,[ebx+2*edx]  shr ecx,2  shr edx,2  mov [esi+eax], cl  mov [edi+eax], dl  inc eax  jl .Loop  pop ebx  pop edi  pop esi  ret;//////////////////////////////////////////////////////////////////////;//;// 16b downsampling 16x16 -> 8x8;//;//////////////////////////////////////////////////////////////////////%macro HFILTER_1331 2  ;%1:src %2:dst reg. -trashes mm0/mm1/mm2  movq mm2, [Mask_ff]  movq %2,  [%1-1]    ;-10123456  movq mm0, [%1]      ; 01234567  movq mm1, [%1+1]    ; 12345678  pand  %2, mm2       ;-1|1|3|5  pand mm0, mm2       ; 0|2|4|6  pand mm1, mm2       ; 1|3|5|7  pand mm2, [%1+2]    ; 2|4|6|8  paddusw mm0, mm1  paddusw %2, mm2  pmullw mm0,  mm7  paddusw %2, mm0%endmacro%macro VFILTER_1331 4  ; %1-4: regs  %1-%2: trashed  paddsw %1, [Cst32]  paddsw %2, %3      pmullw %2, mm7  paddsw %1, %4  paddsw %1, %2  psraw %1, 6%endmacro;//////////////////////////////////////////////////////////////////////%macro COPY_TWO_LINES_1331 1     ; %1: dst  HFILTER_1331 edx    , mm5  HFILTER_1331 edx+eax, mm6  lea edx, [edx+2*eax]  VFILTER_1331 mm3,mm4,mm5, mm6  movq [%1], mm3  HFILTER_1331 edx    , mm3  HFILTER_1331 edx+eax, mm4  lea edx, [edx+2*eax]  VFILTER_1331 mm5,mm6,mm3,mm4  movq [%1+16], mm5%endmacroalign 16Skl_Filter_18x18_To_8x8_MMX:  ; 283c   (~4.4c per output pixel)  mov ecx, [esp+4]  ; Dst  mov edx, [esp+8]  ; Src  mov eax, [esp+12] ; BpS  movq mm7, [Cst3]  sub edx, eax    ; mm3/mm4/mm5/mm6 is used as a 4-samples delay line.      ; process columns 0-3  HFILTER_1331 edx    , mm3   ; pre-load mm3/mm4  HFILTER_1331 edx+eax, mm4  lea edx, [edx+2*eax]  COPY_TWO_LINES_1331 ecx + 0*16  COPY_TWO_LINES_1331 ecx + 2*16  COPY_TWO_LINES_1331 ecx + 4*16  COPY_TWO_LINES_1331 ecx + 6*16      ; process columns 4-7  mov edx, [esp+8]  sub edx, eax  add edx, 8  HFILTER_1331 edx    , mm3   ; pre-load mm3/mm4  HFILTER_1331 edx+eax, mm4  lea edx, [edx+2*eax]  COPY_TWO_LINES_1331 ecx + 0*16 +8  COPY_TWO_LINES_1331 ecx + 2*16 +8  COPY_TWO_LINES_1331 ecx + 4*16 +8  COPY_TWO_LINES_1331 ecx + 6*16 +8  ret;//////////////////////////////////////////////////////////////////////%macro DIFF_TWO_LINES_1331 1     ; %1: dst  HFILTER_1331 edx    , mm5  HFILTER_1331 edx+eax, mm6  lea edx, [edx+2*eax]  movq mm2, [%1]  VFILTER_1331 mm3,mm4,mm5, mm6  psubsw mm2, mm3  movq [%1], mm2  HFILTER_1331 edx    , mm3  HFILTER_1331 edx+eax, mm4  lea edx, [edx+2*eax]  movq mm2, [%1+16]  VFILTER_1331 mm5,mm6,mm3,mm4  psubsw mm2, mm5  movq [%1+16], mm2%endmacroalign 16Skl_Filter_Diff_18x18_To_8x8_MMX:  ; 302c;SKL_RDTSC_IN  mov ecx, [esp+4]  ; Dst  mov edx, [esp+8]  ; Src  mov eax, [esp+12] ; BpS  movq mm7, [Cst3]  sub edx, eax    ; mm3/mm4/mm5/mm6 is used as a 4-samples delay line.      ; process columns 0-3  HFILTER_1331 edx    , mm3   ; pre-load mm3/mm4  HFILTER_1331 edx+eax, mm4  lea edx, [edx+2*eax]  DIFF_TWO_LINES_1331 ecx + 0*16  DIFF_TWO_LINES_1331 ecx + 2*16  DIFF_TWO_LINES_1331 ecx + 4*16  DIFF_TWO_LINES_1331 ecx + 6*16      ; process columns 4-7  mov edx, [esp+8]  sub edx, eax  add edx, 8  HFILTER_1331 edx    , mm3   ; pre-load mm3/mm4  HFILTER_1331 edx+eax, mm4  lea edx, [edx+2*eax]  DIFF_TWO_LINES_1331 ecx + 0*16 +8  DIFF_TWO_LINES_1331 ecx + 2*16 +8  DIFF_TWO_LINES_1331 ecx + 4*16 +8  DIFF_TWO_LINES_1331 ecx + 6*16 +8;SKL_RDTSC_OUT  ret;//////////////////////////////////////////////////////////////////////
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