ref: eeee1a2e9546c84a6cba87510ec702613cc55d0e
dir: /codec/processing/src/x86/downsample_bilinear.asm/
;*! ;* \copy ;* Copyright (c) 2009-2013, Cisco Systems ;* All rights reserved. ;* ;* Redistribution and use in source and binary forms, with or without ;* modification, are permitted provided that the following conditions ;* are met: ;* ;* * Redistributions of source code must retain the above copyright ;* notice, this list of conditions and the following disclaimer. ;* ;* * Redistributions in binary form must reproduce the above copyright ;* notice, this list of conditions and the following disclaimer in ;* the documentation and/or other materials provided with the ;* distribution. ;* ;* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ;* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ;* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS ;* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ;* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, ;* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, ;* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; ;* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER ;* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT ;* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ;* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE ;* POSSIBILITY OF SUCH DAMAGE. ;* ;* ;* upsampling.asm ;* ;* Abstract ;* SIMD for pixel domain down sampling ;* ;* History ;* 10/22/2009 Created ;* ;*************************************************************************/ %include "asm_inc.asm" ;*********************************************************************** ; Macros and other preprocessor constants ;*********************************************************************** ;*********************************************************************** ; Some constants ;*********************************************************************** ;*********************************************************************** ; Local Data (Read Only) ;*********************************************************************** SECTION .rodata align=16 ;*********************************************************************** ; Various memory constants (trigonometric values or rounding values) ;*********************************************************************** ALIGN 16 shufb_mask_low: db 00h, 80h, 02h, 80h, 04h, 80h, 06h, 80h, 08h, 80h, 0ah, 80h, 0ch, 80h, 0eh, 80h shufb_mask_high: db 01h, 80h, 03h, 80h, 05h, 80h, 07h, 80h, 09h, 80h, 0bh, 80h, 0dh, 80h, 0fh, 80h add_extra_half: dd 16384,0,0,0 ;*********************************************************************** ; Code ;*********************************************************************** SECTION .text ;*********************************************************************** ; void DyadicBilinearDownsamplerWidthx32_sse( unsigned char* pDst, const int iDstStride, ; unsigned char* pSrc, const int iSrcStride, ; const int iSrcWidth, const int iSrcHeight ); ;*********************************************************************** WELS_EXTERN DyadicBilinearDownsamplerWidthx32_sse %ifdef X86_32 push r6 %assign push_num 1 %else %assign push_num 0 %endif LOAD_6_PARA SIGN_EXTENSION r1, r1d SIGN_EXTENSION r3, r3d SIGN_EXTENSION r4, r4d SIGN_EXTENSION r5, r5d %ifndef X86_32 push r12 mov r12, r4 %endif sar r5, $01 ; iSrcHeight >> 1 .yloops1: %ifdef X86_32 mov r4, arg5 %else mov r4, r12 %endif sar r4, $01 ; iSrcWidth >> 1 mov r6, r4 ; iDstWidth restored at ebx sar r4, $04 ; (iSrcWidth >> 1) / 16 ; loop count = num_of_mb neg r6 ; - (iSrcWidth >> 1) ; each loop = source bandwidth: 32 bytes .xloops1: ; 1st part horizonal loop: x16 bytes ; mem hi<- ->lo ;1st Line Src: mm0: d D c C b B a A mm1: h H g G f F e E ;2nd Line Src: mm2: l L k K j J i I mm3: p P o O n N m M ;=> target: ;: H G F E D C B A, P O N M L K J I ;: h g f e d c b a, p o n m l k j i ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; movq mm0, [r2] ; 1st pSrc line movq mm1, [r2+8] ; 1st pSrc line + 8 movq mm2, [r2+r3] ; 2nd pSrc line movq mm3, [r2+r3+8] ; 2nd pSrc line + 8 ; to handle mm0, mm1, mm2, mm3 pshufw mm4, mm0, 0d8h ; d D b B c C a A ; 11011000 B pshufw mm5, mm4, 04eh ; c C a A d D b B ; 01001110 B punpcklbw mm4, mm5 ; d c D C b a B A pshufw mm4, mm4, 0d8h ; d c b a D C B A ; 11011000 B: mm4 pshufw mm5, mm1, 0d8h ; h H f F g G e E ; 11011000 B pshufw mm6, mm5, 04eh ; g G e E h H f F ; 01001110 B punpcklbw mm5, mm6 ; h g H G f e F E pshufw mm5, mm5, 0d8h ; h g f e H G F E ; 11011000 B: mm5 pshufw mm6, mm2, 0d8h ; l L j J k K i I ; 11011000 B pshufw mm7, mm6, 04eh ; k K i I l L j J ; 01001110 B punpcklbw mm6, mm7 ; l k L K j i J I pshufw mm6, mm6, 0d8h ; l k j i L K J I ; 11011000 B: mm6 pshufw mm7, mm3, 0d8h ; p P n N o O m M ; 11011000 B pshufw mm0, mm7, 04eh ; o O m M p P n N ; 01001110 B punpcklbw mm7, mm0 ; p o P O n m N M pshufw mm7, mm7, 0d8h ; p o n m P O N M ; 11011000 B: mm7 ; to handle mm4, mm5, mm6, mm7 movq mm0, mm4 ; punpckldq mm0, mm5 ; H G F E D C B A punpckhdq mm4, mm5 ; h g f e d c b a movq mm1, mm6 punpckldq mm1, mm7 ; P O N M L K J I punpckhdq mm6, mm7 ; p o n m l k j i ; avg within MB horizon width (16 x 2 lines) pavgb mm0, mm4 ; (A+a+1)>>1, .., (H+h+1)>>1, temp_row1 pavgb mm1, mm6 ; (I+i+1)>>1, .., (P+p+1)>>1, temp_row2 pavgb mm0, mm1 ; (temp_row1+temp_row2+1)>>1, pending here and wait another horizonal part done then write memory once ; 2nd part horizonal loop: x16 bytes ; mem hi<- ->lo ;1st Line Src: mm0: d D c C b B a A mm1: h H g G f F e E ;2nd Line Src: mm2: l L k K j J i I mm3: p P o O n N m M ;=> target: ;: H G F E D C B A, P O N M L K J I ;: h g f e d c b a, p o n m l k j i ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; movq mm1, [r2+16] ; 1st pSrc line + 16 movq mm2, [r2+24] ; 1st pSrc line + 24 movq mm3, [r2+r3+16] ; 2nd pSrc line + 16 movq mm4, [r2+r3+24] ; 2nd pSrc line + 24 ; to handle mm1, mm2, mm3, mm4 pshufw mm5, mm1, 0d8h ; d D b B c C a A ; 11011000 B pshufw mm6, mm5, 04eh ; c C a A d D b B ; 01001110 B punpcklbw mm5, mm6 ; d c D C b a B A pshufw mm5, mm5, 0d8h ; d c b a D C B A ; 11011000 B: mm5 pshufw mm6, mm2, 0d8h ; h H f F g G e E ; 11011000 B pshufw mm7, mm6, 04eh ; g G e E h H f F ; 01001110 B punpcklbw mm6, mm7 ; h g H G f e F E pshufw mm6, mm6, 0d8h ; h g f e H G F E ; 11011000 B: mm6 pshufw mm7, mm3, 0d8h ; l L j J k K i I ; 11011000 B pshufw mm1, mm7, 04eh ; k K i I l L j J ; 01001110 B punpcklbw mm7, mm1 ; l k L K j i J I pshufw mm7, mm7, 0d8h ; l k j i L K J I ; 11011000 B: mm7 pshufw mm1, mm4, 0d8h ; p P n N o O m M ; 11011000 B pshufw mm2, mm1, 04eh ; o O m M p P n N ; 01001110 B punpcklbw mm1, mm2 ; p o P O n m N M pshufw mm1, mm1, 0d8h ; p o n m P O N M ; 11011000 B: mm1 ; to handle mm5, mm6, mm7, mm1 movq mm2, mm5 punpckldq mm2, mm6 ; H G F E D C B A punpckhdq mm5, mm6 ; h g f e d c b a movq mm3, mm7 punpckldq mm3, mm1 ; P O N M L K J I punpckhdq mm7, mm1 ; p o n m l k j i ; avg within MB horizon width (16 x 2 lines) pavgb mm2, mm5 ; (A+a+1)>>1, .., (H+h+1)>>1, temp_row1 pavgb mm3, mm7 ; (I+i+1)>>1, .., (P+p+1)>>1, temp_row2 pavgb mm2, mm3 ; (temp_row1+temp_row2+1)>>1, done in another 2nd horizonal part movq [r0 ], mm0 movq [r0+8], mm2 ; next SMB lea r2, [r2+32] lea r0, [r0+16] dec r4 jg near .xloops1 ; next line lea r2, [r2+2*r3] ; next end of lines lea r2, [r2+2*r6] ; reset to base 0 [- 2 * iDstWidth] lea r0, [r0+r1] lea r0, [r0+r6] ; reset to base 0 [- iDstWidth] dec r5 jg near .yloops1 WELSEMMS %ifndef X86_32 pop r12 %endif LOAD_6_PARA_POP %ifdef X86_32 pop r6 %endif ret ;*********************************************************************** ; void DyadicBilinearDownsamplerWidthx16_sse( unsigned char* pDst, const int iDstStride, ; unsigned char* pSrc, const int iSrcStride, ; const int iSrcWidth, const int iSrcHeight ); ;*********************************************************************** WELS_EXTERN DyadicBilinearDownsamplerWidthx16_sse %ifdef X86_32 push r6 %assign push_num 1 %else %assign push_num 0 %endif LOAD_6_PARA SIGN_EXTENSION r1, r1d SIGN_EXTENSION r3, r3d SIGN_EXTENSION r4, r4d SIGN_EXTENSION r5, r5d %ifndef X86_32 push r12 mov r12, r4 %endif sar r5, $01 ; iSrcHeight >> 1 .yloops2: %ifdef X86_32 mov r4, arg5 %else mov r4, r12 %endif sar r4, $01 ; iSrcWidth >> 1 mov r6, r4 ; iDstWidth restored at ebx sar r4, $03 ; (iSrcWidth >> 1) / 8 ; loop count = num_of_mb neg r6 ; - (iSrcWidth >> 1) ; each loop = source bandwidth: 16 bytes .xloops2: ; 1st part horizonal loop: x16 bytes ; mem hi<- ->lo ;1st Line Src: mm0: d D c C b B a A mm1: h H g G f F e E ;2nd Line Src: mm2: l L k K j J i I mm3: p P o O n N m M ;=> target: ;: H G F E D C B A, P O N M L K J I ;: h g f e d c b a, p o n m l k j i ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; movq mm0, [r2] ; 1st pSrc line movq mm1, [r2+8] ; 1st pSrc line + 8 movq mm2, [r2+r3] ; 2nd pSrc line movq mm3, [r2+r3+8] ; 2nd pSrc line + 8 ; to handle mm0, mm1, mm2, mm3 pshufw mm4, mm0, 0d8h ; d D b B c C a A ; 11011000 B pshufw mm5, mm4, 04eh ; c C a A d D b B ; 01001110 B punpcklbw mm4, mm5 ; d c D C b a B A pshufw mm4, mm4, 0d8h ; d c b a D C B A ; 11011000 B: mm4 pshufw mm5, mm1, 0d8h ; h H f F g G e E ; 11011000 B pshufw mm6, mm5, 04eh ; g G e E h H f F ; 01001110 B punpcklbw mm5, mm6 ; h g H G f e F E pshufw mm5, mm5, 0d8h ; h g f e H G F E ; 11011000 B: mm5 pshufw mm6, mm2, 0d8h ; l L j J k K i I ; 11011000 B pshufw mm7, mm6, 04eh ; k K i I l L j J ; 01001110 B punpcklbw mm6, mm7 ; l k L K j i J I pshufw mm6, mm6, 0d8h ; l k j i L K J I ; 11011000 B: mm6 pshufw mm7, mm3, 0d8h ; p P n N o O m M ; 11011000 B pshufw mm0, mm7, 04eh ; o O m M p P n N ; 01001110 B punpcklbw mm7, mm0 ; p o P O n m N M pshufw mm7, mm7, 0d8h ; p o n m P O N M ; 11011000 B: mm7 ; to handle mm4, mm5, mm6, mm7 movq mm0, mm4 ; punpckldq mm0, mm5 ; H G F E D C B A punpckhdq mm4, mm5 ; h g f e d c b a movq mm1, mm6 punpckldq mm1, mm7 ; P O N M L K J I punpckhdq mm6, mm7 ; p o n m l k j i ; avg within MB horizon width (16 x 2 lines) pavgb mm0, mm4 ; (A+a+1)>>1, .., (H+h+1)>>1, temp_row1 pavgb mm1, mm6 ; (I+i+1)>>1, .., (P+p+1)>>1, temp_row2 pavgb mm0, mm1 ; (temp_row1+temp_row2+1)>>1, pending here and wait another horizonal part done then write memory once movq [r0 ], mm0 ; next SMB lea r2, [r2+16] lea r0, [r0+8] dec r4 jg near .xloops2 ; next line lea r2, [r2+2*r3] ; next end of lines lea r2, [r2+2*r6] ; reset to base 0 [- 2 * iDstWidth] lea r0, [r0+r1] lea r0, [r0+r6] ; reset to base 0 [- iDstWidth] dec r5 jg near .yloops2 WELSEMMS %ifndef X86_32 pop r12 %endif LOAD_6_PARA_POP %ifdef X86_32 pop r6 %endif ret ;*********************************************************************** ; void DyadicBilinearDownsamplerWidthx8_sse( unsigned char* pDst, const int iDstStride, ; unsigned char* pSrc, const int iSrcStride, ; const int iSrcWidth, const int iSrcHeight ); ;*********************************************************************** WELS_EXTERN DyadicBilinearDownsamplerWidthx8_sse %ifdef X86_32 push r6 %assign push_num 1 %else %assign push_num 0 %endif LOAD_6_PARA SIGN_EXTENSION r1, r1d SIGN_EXTENSION r3, r3d SIGN_EXTENSION r4, r4d SIGN_EXTENSION r5, r5d %ifndef X86_32 push r12 mov r12, r4 %endif sar r5, $01 ; iSrcHeight >> 1 .yloops3: %ifdef X86_32 mov r4, arg5 %else mov r4, r12 %endif sar r4, $01 ; iSrcWidth >> 1 mov r6, r4 ; iDstWidth restored at ebx sar r4, $02 ; (iSrcWidth >> 1) / 4 ; loop count = num_of_mb neg r6 ; - (iSrcWidth >> 1) ; each loop = source bandwidth: 8 bytes .xloops3: ; 1st part horizonal loop: x8 bytes ; mem hi<- ->lo ;1st Line Src: mm0: d D c C b B a A ;2nd Line Src: mm1: h H g G f F e E ;=> target: ;: H G F E D C B A ;: h g f e d c b a ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; movq mm0, [r2] ; 1st pSrc line movq mm1, [r2+r3] ; 2nd pSrc line ; to handle mm0, mm1, mm2, mm3 pshufw mm2, mm0, 0d8h ; d D b B c C a A ; 11011000 B pshufw mm3, mm2, 04eh ; c C a A d D b B ; 01001110 B punpcklbw mm2, mm3 ; d c D C b a B A pshufw mm2, mm2, 0d8h ; d c b a D C B A ; 11011000 B: mm4 pshufw mm4, mm1, 0d8h ; h H f F g G e E ; 11011000 B pshufw mm5, mm4, 04eh ; g G e E h H f F ; 01001110 B punpcklbw mm4, mm5 ; h g H G f e F E pshufw mm4, mm4, 0d8h ; h g f e H G F E ; 11011000 B: mm5 ; to handle mm2, mm4 movq mm0, mm2 ; punpckldq mm0, mm4 ; H G F E D C B A punpckhdq mm2, mm4 ; h g f e d c b a ; avg within MB horizon width (16 x 2 lines) pavgb mm0, mm2 ; (H+h+1)>>1, .., (A+a+1)>>1, temp_row1, 2 pshufw mm1, mm0, 04eh ; 01001110 B pavgb mm0, mm1 ; (temp_row1+temp_row2+1)>>1, pending here and wait another horizonal part done then write memory once movd [r0], mm0 ; next unit lea r2, [r2+8] lea r0, [r0+4] dec r4 jg near .xloops3 ; next line lea r2, [r2+2*r3] ; next end of lines lea r2, [r2+2*r6] ; reset to base 0 [- 2 * iDstWidth] lea r0, [r0+r1] lea r0, [r0+r6] ; reset to base 0 [- iDstWidth] dec r5 jg near .yloops3 WELSEMMS %ifndef X86_32 pop r12 %endif LOAD_6_PARA_POP %ifdef X86_32 pop r6 %endif ret ; got about 50% improvement over DyadicBilinearDownsamplerWidthx32_sse ;*********************************************************************** ; void DyadicBilinearDownsamplerWidthx32_ssse3( unsigned char* pDst, const int iDstStride, ; unsigned char* pSrc, const int iSrcStride, ; const int iSrcWidth, const int iSrcHeight ); ;*********************************************************************** WELS_EXTERN DyadicBilinearDownsamplerWidthx32_ssse3 ;push ebx ;push edx ;push esi ;push edi ;push ebp ;mov edi, [esp+24] ; pDst ;mov edx, [esp+28] ; iDstStride ;mov esi, [esp+32] ; pSrc ;mov ecx, [esp+36] ; iSrcStride ;mov ebp, [esp+44] ; iSrcHeight %ifdef X86_32 push r6 %assign push_num 1 %else %assign push_num 0 %endif LOAD_6_PARA PUSH_XMM 8 SIGN_EXTENSION r1, r1d SIGN_EXTENSION r3, r3d SIGN_EXTENSION r4, r4d SIGN_EXTENSION r5, r5d %ifndef X86_32 push r12 mov r12, r4 %endif sar r5, $01 ; iSrcHeight >> 1 movdqa xmm7, [shufb_mask_low] ; mask low movdqa xmm6, [shufb_mask_high] ; mask high .yloops4: ;mov eax, [esp+40] ; iSrcWidth ;sar eax, $01 ; iSrcWidth >> 1 ;mov ebx, eax ; iDstWidth restored at ebx ;sar eax, $04 ; (iSrcWidth >> 1) / 16 ; loop count = num_of_mb ;neg ebx ; - (iSrcWidth >> 1) %ifdef X86_32 mov r4, arg5 %else mov r4, r12 %endif sar r4, $01 ; iSrcWidth >> 1 mov r6, r4 ; iDstWidth restored at ebx sar r4, $04 ; (iSrcWidth >> 1) / 16 ; loop count = num_of_mb neg r6 ; - (iSrcWidth >> 1) ; each loop = source bandwidth: 32 bytes .xloops4: ; 1st part horizonal loop: x16 bytes ; mem hi<- ->lo ;1st Line Src: xmm0: h H g G f F e E d D c C b B a A ; xmm1: p P o O n N m M l L k K j J i I ;2nd Line Src: xmm2: h H g G f F e E d D c C b B a A ; xmm3: p P o O n N m M l L k K j J i I ;=> target: ;: P O N M L K J I H G F E D C B A ;: p o n m l k j i h g f e d c b a ;: P .. A ;: p .. a ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; movdqa xmm0, [r2] ; 1st_src_line movdqa xmm1, [r2+16] ; 1st_src_line + 16 movdqa xmm2, [r2+r3] ; 2nd_src_line movdqa xmm3, [r2+r3+16] ; 2nd_src_line + 16 ; packing & avg movdqa xmm4, xmm0 ; h H g G f F e E d D c C b B a A pshufb xmm0, xmm7 ; 0 H 0 G 0 F 0 E 0 D 0 C 0 B 0 A pshufb xmm4, xmm6 ; 0 h 0 g 0 f 0 e 0 d 0 c 0 b 0 a ; another implementation for xmm4 high bits ; psubb xmm4, xmm0 ; h 0 g 0 f 0 e 0 d 0 c 0 b 0 a 0 ; psrlw xmm4, 8 ; 0 h 0 g 0 f 0 e 0 d 0 c 0 b 0 a pavgb xmm0, xmm4 movdqa xmm5, xmm1 pshufb xmm1, xmm7 pshufb xmm5, xmm6 ; psubb xmm5, xmm1 ; psrlw xmm5, 8 pavgb xmm1, xmm5 movdqa xmm4, xmm2 pshufb xmm2, xmm7 pshufb xmm4, xmm6 ; psubb xmm4, xmm2 ; psrlw xmm4, 8 pavgb xmm2, xmm4 movdqa xmm5, xmm3 pshufb xmm3, xmm7 pshufb xmm5, xmm6 ; psubb xmm5, xmm3 ; psrlw xmm5, 8 pavgb xmm3, xmm5 packuswb xmm0, xmm1 packuswb xmm2, xmm3 pavgb xmm0, xmm2 ; write pDst movdqa [r0], xmm0 ; next SMB lea r2, [r2+32] lea r0, [r0+16] dec r4 jg near .xloops4 ; next line lea r2, [r2+2*r3] ; next end of lines lea r2, [r2+2*r6] ; reset to base 0 [- 2 * iDstWidth] lea r0, [r0+r1] lea r0, [r0+r6] ; reset to base 0 [- iDstWidth] dec r5 jg near .yloops4 %ifndef X86_32 pop r12 %endif POP_XMM LOAD_6_PARA_POP %ifdef X86_32 pop r6 %endif ret ;*********************************************************************** ; void DyadicBilinearDownsamplerWidthx16_ssse3( unsigned char* pDst, const int iDstStride, ; unsigned char* pSrc, const int iSrcStride, ; const int iSrcWidth, const int iSrcHeight ); ;*********************************************************************** WELS_EXTERN DyadicBilinearDownsamplerWidthx16_ssse3 %ifdef X86_32 push r6 %assign push_num 1 %else %assign push_num 0 %endif LOAD_6_PARA PUSH_XMM 6 SIGN_EXTENSION r1, r1d SIGN_EXTENSION r3, r3d SIGN_EXTENSION r4, r4d SIGN_EXTENSION r5, r5d %ifndef X86_32 push r12 mov r12, r4 %endif sar r5, $01 ; iSrcHeight >> 1 movdqa xmm5, [shufb_mask_low] ; mask low movdqa xmm4, [shufb_mask_high] ; mask high .yloops5: %ifdef X86_32 mov r4, arg5 %else mov r4, r12 %endif sar r4, $01 ; iSrcWidth >> 1 mov r6, r4 ; iDstWidth restored at ebx sar r4, $03 ; (iSrcWidth >> 1) / 8 ; loop count = num_of_mb neg r6 ; - (iSrcWidth >> 1) ; each loop = source bandwidth: 16 bytes .xloops5: ; horizonal loop: x16 bytes by source ; mem hi<- ->lo ;1st line pSrc: xmm0: h H g G f F e E d D c C b B a A ;2nd line pSrc: xmm1: p P o O n N m M l L k K j J i I ;=> target: ;: H G F E D C B A, P O N M L K J I ;: h g f e d c b a, p o n m l k j i ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; movdqa xmm0, [r2] ; 1st_src_line movdqa xmm1, [r2+r3] ; 2nd_src_line ; packing & avg movdqa xmm2, xmm0 ; h H g G f F e E d D c C b B a A pshufb xmm0, xmm5 ; 0 H 0 G 0 F 0 E 0 D 0 C 0 B 0 A pshufb xmm2, xmm4 ; 0 h 0 g 0 f 0 e 0 d 0 c 0 b 0 a ; another implementation for xmm2 high bits ; psubb xmm2, xmm0 ; h 0 g 0 f 0 e 0 d 0 c 0 b 0 a 0 ; psrlw xmm2, 8 ; 0 h 0 g 0 f 0 e 0 d 0 c 0 b 0 a pavgb xmm0, xmm2 movdqa xmm3, xmm1 pshufb xmm1, xmm5 pshufb xmm3, xmm4 ; psubb xmm3, xmm1 ; psrlw xmm3, 8 pavgb xmm1, xmm3 pavgb xmm0, xmm1 packuswb xmm0, xmm1 ; write pDst movq [r0], xmm0 ; next SMB lea r2, [r2+16] lea r0, [r0+8] dec r4 jg near .xloops5 lea r2, [r2+2*r3] ; next end of lines lea r2, [r2+2*r6] ; reset to base 0 [- 2 * iDstWidth] lea r0, [r0+r1] lea r0, [r0+r6] ; reset to base 0 [- iDstWidth] dec r5 jg near .yloops5 %ifndef X86_32 pop r12 %endif POP_XMM LOAD_6_PARA_POP %ifdef X86_32 pop r6 %endif ret ; got about 65% improvement over DyadicBilinearDownsamplerWidthx32_sse ;*********************************************************************** ; void DyadicBilinearDownsamplerWidthx32_sse4( unsigned char* pDst, const int iDstStride, ; unsigned char* pSrc, const int iSrcStride, ; const int iSrcWidth, const int iSrcHeight ); ;*********************************************************************** WELS_EXTERN DyadicBilinearDownsamplerWidthx32_sse4 %ifdef X86_32 push r6 %assign push_num 1 %else %assign push_num 0 %endif LOAD_6_PARA PUSH_XMM 8 SIGN_EXTENSION r1, r1d SIGN_EXTENSION r3, r3d SIGN_EXTENSION r4, r4d SIGN_EXTENSION r5, r5d %ifndef X86_32 push r12 mov r12, r4 %endif sar r5, $01 ; iSrcHeight >> 1 movdqa xmm7, [shufb_mask_low] ; mask low movdqa xmm6, [shufb_mask_high] ; mask high .yloops6: %ifdef X86_32 mov r4, arg5 %else mov r4, r12 %endif sar r4, $01 ; iSrcWidth >> 1 mov r6, r4 ; iDstWidth restored at ebx sar r4, $04 ; (iSrcWidth >> 1) / 16 ; loop count = num_of_mb neg r6 ; - (iSrcWidth >> 1) ; each loop = source bandwidth: 32 bytes .xloops6: ; 1st part horizonal loop: x16 bytes ; mem hi<- ->lo ;1st Line Src: xmm0: h H g G f F e E d D c C b B a A ; xmm1: p P o O n N m M l L k K j J i I ;2nd Line Src: xmm2: h H g G f F e E d D c C b B a A ; xmm3: p P o O n N m M l L k K j J i I ;=> target: ;: P O N M L K J I H G F E D C B A ;: p o n m l k j i h g f e d c b a ;: P .. A ;: p .. a ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; movntdqa xmm0, [r2] ; 1st_src_line movntdqa xmm1, [r2+16] ; 1st_src_line + 16 movntdqa xmm2, [r2+r3] ; 2nd_src_line movntdqa xmm3, [r2+r3+16] ; 2nd_src_line + 16 ; packing & avg movdqa xmm4, xmm0 ; h H g G f F e E d D c C b B a A pshufb xmm0, xmm7 ; 0 H 0 G 0 F 0 E 0 D 0 C 0 B 0 A pshufb xmm4, xmm6 ; 0 h 0 g 0 f 0 e 0 d 0 c 0 b 0 a ; psubb xmm4, xmm0 ; h 0 g 0 f 0 e 0 d 0 c 0 b 0 a 0 ; psrlw xmm4, 8 ; 0 h 0 g 0 f 0 e 0 d 0 c 0 b 0 a pavgb xmm0, xmm4 movdqa xmm5, xmm1 pshufb xmm1, xmm7 pshufb xmm5, xmm6 ; psubb xmm5, xmm1 ; psrlw xmm5, 8 pavgb xmm1, xmm5 movdqa xmm4, xmm2 pshufb xmm2, xmm7 pshufb xmm4, xmm6 ; psubb xmm4, xmm2 ; psrlw xmm4, 8 pavgb xmm2, xmm4 movdqa xmm5, xmm3 pshufb xmm3, xmm7 pshufb xmm5, xmm6 ; psubb xmm5, xmm3 ; psrlw xmm5, 8 pavgb xmm3, xmm5 packuswb xmm0, xmm1 packuswb xmm2, xmm3 pavgb xmm0, xmm2 ; write pDst movdqa [r0], xmm0 ; next SMB lea r2, [r2+32] lea r0, [r0+16] dec r4 jg near .xloops6 lea r2, [r2+2*r3] ; next end of lines lea r2, [r2+2*r6] ; reset to base 0 [- 2 * iDstWidth] lea r0, [r0+r1] lea r0, [r0+r6] ; reset to base 0 [- iDstWidth] dec r5 jg near .yloops6 %ifndef X86_32 pop r12 %endif POP_XMM LOAD_6_PARA_POP %ifdef X86_32 pop r6 %endif ret ;*********************************************************************** ; void DyadicBilinearDownsamplerWidthx16_sse4( unsigned char* pDst, const int iDstStride, ; unsigned char* pSrc, const int iSrcStride, ; const int iSrcWidth, const int iSrcHeight ); ;*********************************************************************** WELS_EXTERN DyadicBilinearDownsamplerWidthx16_sse4 %ifdef X86_32 push r6 %assign push_num 1 %else %assign push_num 0 %endif LOAD_6_PARA PUSH_XMM 6 SIGN_EXTENSION r1, r1d SIGN_EXTENSION r3, r3d SIGN_EXTENSION r4, r4d SIGN_EXTENSION r5, r5d %ifndef X86_32 push r12 mov r12, r4 %endif sar r5, $01 ; iSrcHeight >> 1 movdqa xmm5, [shufb_mask_low] ; mask low movdqa xmm4, [shufb_mask_high] ; mask high .yloops7: %ifdef X86_32 mov r4, arg5 %else mov r4, r12 %endif sar r4, $01 ; iSrcWidth >> 1 mov r6, r4 ; iDstWidth restored at ebx sar r4, $03 ; (iSrcWidth >> 1) / 8 ; loop count = num_of_mb neg r6 ; - (iSrcWidth >> 1) ; each loop = source bandwidth: 16 bytes .xloops7: ; horizonal loop: x16 bytes by source ; mem hi<- ->lo ;1st line pSrc: xmm0: h H g G f F e E d D c C b B a A ;2nd line pSrc: xmm1: p P o O n N m M l L k K j J i I ;=> target: ;: H G F E D C B A, P O N M L K J I ;: h g f e d c b a, p o n m l k j i ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; movntdqa xmm0, [r2] ; 1st_src_line movntdqa xmm1, [r2+r3] ; 2nd_src_line ; packing & avg movdqa xmm2, xmm0 ; h H g G f F e E d D c C b B a A pshufb xmm0, xmm5 ; 0 H 0 G 0 F 0 E 0 D 0 C 0 B 0 A pshufb xmm2, xmm4 ; 0 h 0 g 0 f 0 e 0 d 0 c 0 b 0 a ; psubb xmm2, xmm0 ; h 0 g 0 f 0 e 0 d 0 c 0 b 0 a 0 ; psrlw xmm2, 8 ; 0 h 0 g 0 f 0 e 0 d 0 c 0 b 0 a pavgb xmm0, xmm2 movdqa xmm3, xmm1 pshufb xmm1, xmm5 pshufb xmm3, xmm4 ; psubb xmm3, xmm1 ; psrlw xmm3, 8 pavgb xmm1, xmm3 pavgb xmm0, xmm1 packuswb xmm0, xmm1 ; write pDst movq [r0], xmm0 ; next SMB lea r2, [r2+16] lea r0, [r0+8] dec r4 jg near .xloops7 ; next line lea r2, [r2+2*r3] ; next end of lines lea r2, [r2+2*r6] ; reset to base 0 [- 2 * iDstWidth] lea r0, [r0+r1] lea r0, [r0+r6] ; reset to base 0 [- iDstWidth] dec r5 jg near .yloops7 %ifndef X86_32 pop r12 %endif POP_XMM LOAD_6_PARA_POP %ifdef X86_32 pop r6 %endif ret %ifdef X86_32 ;************************************************************************************************************** ;int GeneralBilinearAccurateDownsampler_sse2( unsigned char* pDst, const int iDstStride, const int iDstWidth, const int iDstHeight, ; unsigned char* pSrc, const int iSrcStride, ; unsigned int uiScaleX, unsigned int uiScaleY ); ;{ ;************************************************************************************************************** WELS_EXTERN GeneralBilinearAccurateDownsampler_sse2 push ebp push esi push edi push ebx %define pushsize 16 %define localsize 16 %define pDstData esp + pushsize + localsize + 4 %define dwDstStride esp + pushsize + localsize + 8 %define dwDstWidth esp + pushsize + localsize + 12 %define dwDstHeight esp + pushsize + localsize + 16 %define pSrcData esp + pushsize + localsize + 20 %define dwSrcStride esp + pushsize + localsize + 24 %define uiScaleX esp + pushsize + localsize + 28 %define uiScaleY esp + pushsize + localsize + 32 %define tmpHeight esp + 0 %define yInverse esp + 4 %define xInverse esp + 8 %define dstStep esp + 12 sub esp, localsize pxor xmm0, xmm0 mov eax, [uiScaleX] and eax, 32767 mov ebx, eax neg ebx and ebx, 32767 movd xmm1, eax ; uinc(uiScaleX mod 32767) movd xmm2, ebx ; -uinc psllq xmm1, 32 por xmm1, xmm2 ; 0 0 uinc -uinc (dword) pshufd xmm7, xmm1, 01000100b ; xmm7: uinc -uinc uinc -uinc mov eax, [uiScaleY] and eax, 32767 mov ebx, eax neg ebx and ebx, 32767 movd xmm6, eax ; vinc(uiScaleY mod 32767) movd xmm2, ebx ; -vinc psllq xmm6, 32 por xmm6, xmm2 ; 0 0 vinc -vinc (dword) pshufd xmm6, xmm6, 01010000b ; xmm6: vinc vinc -vinc -vinc mov edx, 40003fffh movd xmm5, edx punpcklwd xmm5, xmm0 ; 16384 16383 pshufd xmm5, xmm5, 01000100b ; xmm5: 16384 16383 16384 16383 DOWNSAMPLE: mov eax, [dwDstHeight] mov edi, [pDstData] mov edx, [dwDstStride] mov ecx, [dwDstWidth] sub edx, ecx mov [dstStep], edx ; stride - width dec eax mov [tmpHeight], eax mov eax, 16384 mov [yInverse], eax pshufd xmm4, xmm5, 01010000b ; initial v to 16384 16384 16383 16383 HEIGHT: mov eax, [yInverse] mov esi, [pSrcData] shr eax, 15 mul dword [dwSrcStride] add esi, eax ; get current row address mov ebp, esi add ebp, [dwSrcStride] mov eax, 16384 mov [xInverse], eax mov ecx, [dwDstWidth] dec ecx movdqa xmm3, xmm5 ; initial u to 16384 16383 16384 16383 WIDTH: mov eax, [xInverse] shr eax, 15 movd xmm1, [esi+eax] ; xxxxxxba movd xmm2, [ebp+eax] ; xxxxxxdc pxor xmm0, xmm0 punpcklwd xmm1, xmm2 ; xxxxdcba punpcklbw xmm1, xmm0 ; 0d0c0b0a punpcklwd xmm1, xmm0 ; 000d000c000b000a movdqa xmm2, xmm4 ; xmm2: vv(1-v)(1-v) tmpv pmaddwd xmm2, xmm3 ; mul u(1-u)u(1-u) on xmm2 movdqa xmm0, xmm2 pmuludq xmm2, xmm1 psrlq xmm0, 32 psrlq xmm1, 32 pmuludq xmm0, xmm1 paddq xmm2, xmm0 pshufd xmm1, xmm2, 00001110b paddq xmm2, xmm1 psrlq xmm2, 29 movd eax, xmm2 inc eax shr eax, 1 mov [edi], al inc edi mov eax, [uiScaleX] add [xInverse], eax paddw xmm3, xmm7 ; inc u psllw xmm3, 1 psrlw xmm3, 1 loop WIDTH WIDTH_END: mov eax, [xInverse] shr eax, 15 mov cl, [esi+eax] mov [edi], cl inc edi mov eax, [uiScaleY] add [yInverse], eax add edi, [dstStep] paddw xmm4, xmm6 ; inc v psllw xmm4, 1 psrlw xmm4, 1 dec dword [tmpHeight] jg HEIGHT LAST_ROW: mov eax, [yInverse] mov esi, [pSrcData] shr eax, 15 mul dword [dwSrcStride] add esi, eax ; get current row address mov eax, 16384 mov [xInverse], eax mov ecx, [dwDstWidth] LAST_ROW_WIDTH: mov eax, [xInverse] shr eax, 15 mov al, [esi+eax] mov [edi], al inc edi mov eax, [uiScaleX] add [xInverse], eax loop LAST_ROW_WIDTH LAST_ROW_END: add esp, localsize pop ebx pop edi pop esi pop ebp %undef pushsize %undef localsize %undef pSrcData %undef dwSrcWidth %undef dwSrcHeight %undef dwSrcStride %undef pDstData %undef dwDstWidth %undef dwDstHeight %undef dwDstStride %undef uiScaleX %undef uiScaleY %undef tmpHeight %undef yInverse %undef xInverse %undef dstStep ret ;************************************************************************************************************** ;int GeneralBilinearFastDownsampler_sse2( unsigned char* pDst, const int iDstStride, const int iDstWidth, const int iDstHeight, ; unsigned char* pSrc, const int iSrcStride, ; unsigned int uiScaleX, unsigned int uiScaleY ); ;{ ;************************************************************************************************************** WELS_EXTERN GeneralBilinearFastDownsampler_sse2 push ebp push esi push edi push ebx %define pushsize 16 %define localsize 16 %define pDstData esp + pushsize + localsize + 4 %define dwDstStride esp + pushsize + localsize + 8 %define dwDstWidth esp + pushsize + localsize + 12 %define dwDstHeight esp + pushsize + localsize + 16 %define pSrcData esp + pushsize + localsize + 20 %define dwSrcStride esp + pushsize + localsize + 24 %define uiScaleX esp + pushsize + localsize + 28 %define uiScaleY esp + pushsize + localsize + 32 %define tmpHeight esp + 0 %define yInverse esp + 4 %define xInverse esp + 8 %define dstStep esp + 12 sub esp, localsize pxor xmm0, xmm0 mov edx, 65535 mov eax, [uiScaleX] and eax, edx mov ebx, eax neg ebx and ebx, 65535 movd xmm1, eax ; uinc(uiScaleX mod 65536) movd xmm2, ebx ; -uinc psllq xmm1, 32 por xmm1, xmm2 ; 0 uinc 0 -uinc pshuflw xmm7, xmm1, 10001000b ; xmm7: uinc -uinc uinc -uinc mov eax, [uiScaleY] and eax, 32767 mov ebx, eax neg ebx and ebx, 32767 movd xmm6, eax ; vinc(uiScaleY mod 32767) movd xmm2, ebx ; -vinc psllq xmm6, 32 por xmm6, xmm2 ; 0 vinc 0 -vinc pshuflw xmm6, xmm6, 10100000b ; xmm6: vinc vinc -vinc -vinc mov edx, 80007fffh ; 32768 32767 movd xmm5, edx pshuflw xmm5, xmm5, 01000100b ; 32768 32767 32768 32767 mov ebx, 16384 FAST_DOWNSAMPLE: mov eax, [dwDstHeight] mov edi, [pDstData] mov edx, [dwDstStride] mov ecx, [dwDstWidth] sub edx, ecx mov [dstStep], edx ; stride - width dec eax mov [tmpHeight], eax mov eax, 16384 mov [yInverse], eax pshuflw xmm4, xmm5, 01010000b psrlw xmm4, 1 ; initial v to 16384 16384 16383 16383 FAST_HEIGHT: mov eax, [yInverse] mov esi, [pSrcData] shr eax, 15 mul dword [dwSrcStride] add esi, eax ; get current row address mov ebp, esi add ebp, [dwSrcStride] mov eax, 32768 mov [xInverse], eax mov ecx, [dwDstWidth] dec ecx movdqa xmm3, xmm5 ; initial u to 32768 32767 32768 32767 FAST_WIDTH: mov eax, [xInverse] shr eax, 16 movd xmm1, [esi+eax] ; xxxxxxba movd xmm2, [ebp+eax] ; xxxxxxdc punpcklwd xmm1, xmm2 ; xxxxdcba punpcklbw xmm1, xmm0 ; 0d0c0b0a movdqa xmm2, xmm4 ; xmm2: vv(1-v)(1-v) tmpv pmulhuw xmm2, xmm3 ; mul u(1-u)u(1-u) on xmm2 pmaddwd xmm2, xmm1 pshufd xmm1, xmm2, 00000001b paddd xmm2, xmm1 movd xmm1, ebx paddd xmm2, xmm1 psrld xmm2, 15 packuswb xmm2, xmm0 movd eax, xmm2 mov [edi], al inc edi mov eax, [uiScaleX] add [xInverse], eax paddw xmm3, xmm7 ; inc u loop FAST_WIDTH FAST_WIDTH_END: mov eax, [xInverse] shr eax, 16 mov cl, [esi+eax] mov [edi], cl inc edi mov eax, [uiScaleY] add [yInverse], eax add edi, [dstStep] paddw xmm4, xmm6 ; inc v psllw xmm4, 1 psrlw xmm4, 1 dec dword [tmpHeight] jg FAST_HEIGHT FAST_LAST_ROW: mov eax, [yInverse] mov esi, [pSrcData] shr eax, 15 mul dword [dwSrcStride] add esi, eax ; get current row address mov eax, 32768 mov [xInverse], eax mov ecx, [dwDstWidth] FAST_LAST_ROW_WIDTH: mov eax, [xInverse] shr eax, 16 mov al, [esi+eax] mov [edi], al inc edi mov eax, [uiScaleX] add [xInverse], eax loop FAST_LAST_ROW_WIDTH FAST_LAST_ROW_END: add esp, localsize pop ebx pop edi pop esi pop ebp %undef pushsize %undef localsize %undef pSrcData %undef dwSrcWidth %undef dwSrcHeight %undef dwSrcStride %undef pDstData %undef dwDstStride %undef uiScaleX %undef uiScaleY %undef tmpHeight %undef yInverse %undef xInverse %undef dstStep ret %elifdef WIN64 ;************************************************************************************************************** ;int GeneralBilinearAccurateDownsampler_sse2( unsigned char* pDst, const int iDstStride, const int iDstWidth, const int iDstHeight, ; unsigned char* pSrc, const int iSrcStride, ; unsigned int uiScaleX, unsigned int uiScaleY ); ;{ ;************************************************************************************************************** WELS_EXTERN GeneralBilinearAccurateDownsampler_sse2 push r12 push r13 push r14 push r15 push rsi push rdi push rbx push rbp %assign push_num 8 LOAD_7_PARA PUSH_XMM 8 SIGN_EXTENSION r1, r1d SIGN_EXTENSION r2, r2d SIGN_EXTENSION r3, r3d SIGN_EXTENSION r5, r5d SIGN_EXTENSION r6, r6d pxor xmm0, xmm0 mov r12d, r6d and r12d, 32767 mov r13d, r12d neg r13d and r13d, 32767 movd xmm1, r12d ; uinc(uiScaleX mod 32767) movd xmm2, r13d ; -uinc psllq xmm1, 32 por xmm1, xmm2 ; 0 0 uinc -uinc (dword) pshufd xmm7, xmm1, 01000100b ; xmm7: uinc -uinc uinc -uinc mov r12, arg8 SIGN_EXTENSION r12, r12d mov rbp, r12 and r12d, 32767 mov r13d, r12d neg r13d and r13d, 32767 movd xmm6, r12d ; vinc(uiScaleY mod 32767) movd xmm2, r13d ; -vinc psllq xmm6, 32 por xmm6, xmm2 ; 0 0 vinc -vinc (dword) pshufd xmm6, xmm6, 01010000b ; xmm6: vinc vinc -vinc -vinc mov r12d, 40003fffh movd xmm5, r12d punpcklwd xmm5, xmm0 ; 16384 16383 pshufd xmm5, xmm5, 01000100b ; xmm5: 16384 16383 16384 16383 DOWNSAMPLE: sub r1, r2 ; stride - width dec r3 mov r14,16384 pshufd xmm4, xmm5, 01010000b ; initial v to 16384 16384 16383 16383 HEIGHT: ;mov r12, r4 mov r12, r14 shr r12, 15 imul r12, r5 add r12, r4 ; get current row address mov r13, r12 add r13, r5 mov r15, 16384 mov rsi, r2 dec rsi movdqa xmm3, xmm5 ; initial u to 16384 16383 16384 16383 WIDTH: mov rdi, r15 shr rdi, 15 movd xmm1, [r12+rdi] ; xxxxxxba movd xmm2, [r13+rdi] ; xxxxxxdc pxor xmm0, xmm0 punpcklwd xmm1, xmm2 ; xxxxdcba punpcklbw xmm1, xmm0 ; 0d0c0b0a punpcklwd xmm1, xmm0 ; 000d000c000b000a movdqa xmm2, xmm4 ; xmm2: vv(1-v)(1-v) tmpv pmaddwd xmm2, xmm3 ; mul u(1-u)u(1-u) on xmm2 movdqa xmm0, xmm2 pmuludq xmm2, xmm1 psrlq xmm0, 32 psrlq xmm1, 32 pmuludq xmm0, xmm1 paddq xmm2, xmm0 pshufd xmm1, xmm2, 00001110b paddq xmm2, xmm1 psrlq xmm2, 29 movd ebx, xmm2 inc ebx shr ebx, 1 mov [r0], bl inc r0 add r15, r6 paddw xmm3, xmm7 ; inc u psllw xmm3, 1 psrlw xmm3, 1 dec rsi jg WIDTH WIDTH_END: shr r15, 15 mov bl, [r12+r15] mov [r0],bl inc r0 add r14, rbp add r0, r1 paddw xmm4, xmm6 ; inc v psllw xmm4, 1 psrlw xmm4, 1 dec r3 jg HEIGHT LAST_ROW: shr r14, 15 imul r14, r5 add r4, r14 mov r15, 16384 LAST_ROW_WIDTH: mov rdi, r15 shr rdi, 15 mov bl, [r4+rdi] mov [r0],bl inc r0 add r15, r6 dec r2 jg LAST_ROW_WIDTH LAST_ROW_END: POP_XMM pop rbp pop rbx pop rdi pop rsi pop r15 pop r14 pop r13 pop r12 ret ;************************************************************************************************************** ;int GeneralBilinearFastDownsampler_sse2( unsigned char* pDst, const int iDstStride, const int iDstWidth, const int iDstHeight, ; unsigned char* pSrc, const int iSrcStride, ; unsigned int uiScaleX, unsigned int uiScaleY ); ;{ ;************************************************************************************************************** WELS_EXTERN GeneralBilinearFastDownsampler_sse2 push r12 push r13 push r14 push r15 push rsi push rdi push rbx push rbp %assign push_num 8 LOAD_7_PARA PUSH_XMM 8 SIGN_EXTENSION r1, r1d SIGN_EXTENSION r2, r2d SIGN_EXTENSION r3, r3d SIGN_EXTENSION r5, r5d SIGN_EXTENSION r6, r6d pxor xmm0, xmm0 mov r12d, r6d and r12d, 65535 mov r13d, r12d neg r13d and r13d, 65535 movd xmm1, r12d ; uinc(uiScaleX mod 65536) movd xmm2, r13d ; -uinc psllq xmm1, 32 por xmm1, xmm2 ; 0 uinc 0 -uinc pshuflw xmm7, xmm1, 10001000b ; xmm7: uinc -uinc uinc -uinc mov r12, arg8 SIGN_EXTENSION r12, r12d mov rbp, r12 and r12d, 32767 mov r13d, r12d neg r13d and r13d, 32767 movd xmm6, r12d ; vinc(uiScaleY mod 32767) movd xmm2, r13d ; -vinc psllq xmm6, 32 por xmm6, xmm2 ; 0 vinc 0 -vinc pshuflw xmm6, xmm6, 10100000b ; xmm6: vinc vinc -vinc -vinc mov r12d, 80007fffh ; 32768 32767 movd xmm5, r12d pshuflw xmm5, xmm5, 01000100b ; 32768 32767 32768 32767 FAST_DOWNSAMPLE: sub r1, r2 ; stride - width dec r3 mov r14,16384 pshuflw xmm4, xmm5, 01010000b psrlw xmm4, 1 ; initial v to 16384 16384 16383 16383 FAST_HEIGHT: mov r12, r14 shr r12, 15 imul r12, r5 add r12, r4 ; get current row address mov r13, r12 add r13, r5 mov r15, 32768 mov rsi, r2 dec rsi movdqa xmm3, xmm5 ; initial u to 32768 32767 32768 32767 FAST_WIDTH: mov rdi, r15 shr rdi, 16 movd xmm1, [r12+rdi] ; xxxxxxba movd xmm2, [r13+rdi] ; xxxxxxdc punpcklwd xmm1, xmm2 ; xxxxdcba punpcklbw xmm1, xmm0 ; 0d0c0b0a movdqa xmm2, xmm4 ; xmm2: vv(1-v)(1-v) tmpv pmulhuw xmm2, xmm3 ; mul u(1-u)u(1-u) on xmm2 pmaddwd xmm2, xmm1 pshufd xmm1, xmm2, 00000001b paddd xmm2, xmm1 movdqa xmm1, [add_extra_half] paddd xmm2, xmm1 psrld xmm2, 15 packuswb xmm2, xmm0 movd ebx, xmm2 mov [r0], bl inc r0 add r15, r6 paddw xmm3, xmm7 ; inc u dec rsi jg FAST_WIDTH FAST_WIDTH_END: shr r15, 16 mov bl, [r12+r15] mov [r0],bl inc r0 add r14, rbp add r0, r1 paddw xmm4, xmm6 ; inc v psllw xmm4, 1 psrlw xmm4, 1 dec r3 jg FAST_HEIGHT FAST_LAST_ROW: shr r14, 15 imul r14, r5 add r4, r14 mov r15, 32768 FAST_LAST_ROW_WIDTH: mov rdi, r15 shr rdi, 16 mov bl, [r4+rdi] mov [r0],bl inc r0 add r15, r6 dec r2 jg FAST_LAST_ROW_WIDTH FAST_LAST_ROW_END: POP_XMM pop rbp pop rbx pop rdi pop rsi pop r15 pop r14 pop r13 pop r12 ret %elifdef UNIX64 ;************************************************************************************************************** ;int GeneralBilinearAccurateDownsampler_sse2( unsigned char* pDst, const int iDstStride, const int iDstWidth, const int iDstHeight, ; unsigned char* pSrc, const int iSrcStride, ; unsigned int uiScaleX, unsigned int uiScaleY ); ;{ ;************************************************************************************************************** WELS_EXTERN GeneralBilinearAccurateDownsampler_sse2 push r12 push r13 push r14 push r15 push rbx push rbp %assign push_num 6 LOAD_7_PARA SIGN_EXTENSION r1, r1d SIGN_EXTENSION r2, r2d SIGN_EXTENSION r3, r3d SIGN_EXTENSION r5, r5d SIGN_EXTENSION r6, r6d pxor xmm0, xmm0 mov r12d, r6d and r12d, 32767 mov r13d, r12d neg r13d and r13d, 32767 movd xmm1, r12d ; uinc(uiScaleX mod 32767) movd xmm2, r13d ; -uinc psllq xmm1, 32 por xmm1, xmm2 ; 0 0 uinc -uinc (dword) pshufd xmm7, xmm1, 01000100b ; xmm7: uinc -uinc uinc -uinc mov r12, arg8 SIGN_EXTENSION r12, r12d mov rbp, r12 and r12d, 32767 mov r13d, r12d neg r13d and r13d, 32767 movd xmm6, r12d ; vinc(uiScaleY mod 32767) movd xmm2, r13d ; -vinc psllq xmm6, 32 por xmm6, xmm2 ; 0 0 vinc -vinc (dword) pshufd xmm6, xmm6, 01010000b ; xmm6: vinc vinc -vinc -vinc mov r12d, 40003fffh movd xmm5, r12d punpcklwd xmm5, xmm0 ; 16384 16383 pshufd xmm5, xmm5, 01000100b ; xmm5: 16384 16383 16384 16383 DOWNSAMPLE: sub r1, r2 ; stride - width dec r3 mov r14,16384 pshufd xmm4, xmm5, 01010000b ; initial v to 16384 16384 16383 16383 HEIGHT: ;mov r12, r4 mov r12, r14 shr r12, 15 imul r12, r5 add r12, r4 ; get current row address mov r13, r12 add r13, r5 mov r15, 16384 mov rax, r2 dec rax movdqa xmm3, xmm5 ; initial u to 16384 16383 16384 16383 WIDTH: mov r11, r15 shr r11, 15 movd xmm1, [r12+r11] ; xxxxxxba movd xmm2, [r13+r11] ; xxxxxxdc pxor xmm0, xmm0 punpcklwd xmm1, xmm2 ; xxxxdcba punpcklbw xmm1, xmm0 ; 0d0c0b0a punpcklwd xmm1, xmm0 ; 000d000c000b000a movdqa xmm2, xmm4 ; xmm2: vv(1-v)(1-v) tmpv pmaddwd xmm2, xmm3 ; mul u(1-u)u(1-u) on xmm2 movdqa xmm0, xmm2 pmuludq xmm2, xmm1 psrlq xmm0, 32 psrlq xmm1, 32 pmuludq xmm0, xmm1 paddq xmm2, xmm0 pshufd xmm1, xmm2, 00001110b paddq xmm2, xmm1 psrlq xmm2, 29 movd ebx, xmm2 inc ebx shr ebx, 1 mov [r0], bl inc r0 add r15, r6 paddw xmm3, xmm7 ; inc u psllw xmm3, 1 psrlw xmm3, 1 dec rax jg WIDTH WIDTH_END: shr r15, 15 mov bl, [r12+r15] mov [r0],bl inc r0 add r14, rbp add r0, r1 paddw xmm4, xmm6 ; inc v psllw xmm4, 1 psrlw xmm4, 1 dec r3 jg HEIGHT LAST_ROW: shr r14, 15 imul r14, r5 add r4, r14 mov r15, 16384 LAST_ROW_WIDTH: mov r11, r15 shr r11, 15 mov bl, [r4+r11] mov [r0],bl inc r0 add r15, r6 dec r2 jg LAST_ROW_WIDTH LAST_ROW_END: pop rbp pop rbx pop r15 pop r14 pop r13 pop r12 ret ;************************************************************************************************************** ;int GeneralBilinearFastDownsampler_sse2( unsigned char* pDst, const int iDstStride, const int iDstWidth, const int iDstHeight, ; unsigned char* pSrc, const int iSrcStride, ; unsigned int uiScaleX, unsigned int uiScaleY ); ;{ ;************************************************************************************************************** WELS_EXTERN GeneralBilinearFastDownsampler_sse2 push r12 push r13 push r14 push r15 push rbx push rbp %assign push_num 6 LOAD_7_PARA SIGN_EXTENSION r1, r1d SIGN_EXTENSION r2, r2d SIGN_EXTENSION r3, r3d SIGN_EXTENSION r5, r5d SIGN_EXTENSION r6, r6d pxor xmm0, xmm0 mov r12d, r6d and r12d, 65535 mov r13d, r12d neg r13d and r13d, 65535 movd xmm1, r12d ; uinc(uiScaleX mod 65536) movd xmm2, r13d ; -uinc psllq xmm1, 32 por xmm1, xmm2 ; 0 uinc 0 -uinc pshuflw xmm7, xmm1, 10001000b ; xmm7: uinc -uinc uinc -uinc mov r12, arg8 SIGN_EXTENSION r12, r12d mov rbp, r12 and r12d, 32767 mov r13d, r12d neg r13d and r13d, 32767 movd xmm6, r12d ; vinc(uiScaleY mod 32767) movd xmm2, r13d ; -vinc psllq xmm6, 32 por xmm6, xmm2 ; 0 vinc 0 -vinc pshuflw xmm6, xmm6, 10100000b ; xmm6: vinc vinc -vinc -vinc mov r12d, 80007fffh ; 32768 32767 movd xmm5, r12d pshuflw xmm5, xmm5, 01000100b ; 32768 32767 32768 32767 FAST_DOWNSAMPLE: sub r1, r2 ; stride - width dec r3 mov r14,16384 pshuflw xmm4, xmm5, 01010000b psrlw xmm4, 1 ; initial v to 16384 16384 16383 16383 FAST_HEIGHT: mov r12, r14 shr r12, 15 imul r12, r5 add r12, r4 ; get current row address mov r13, r12 add r13, r5 mov r15, 32768 mov rax, r2 dec rax movdqa xmm3, xmm5 ; initial u to 32768 32767 32768 32767 FAST_WIDTH: mov r11, r15 shr r11, 16 movd xmm1, [r12+r11] ; xxxxxxba movd xmm2, [r13+r11] ; xxxxxxdc punpcklwd xmm1, xmm2 ; xxxxdcba punpcklbw xmm1, xmm0 ; 0d0c0b0a movdqa xmm2, xmm4 ; xmm2: vv(1-v)(1-v) tmpv pmulhuw xmm2, xmm3 ; mul u(1-u)u(1-u) on xmm2 pmaddwd xmm2, xmm1 pshufd xmm1, xmm2, 00000001b paddd xmm2, xmm1 movdqa xmm1, [add_extra_half] paddd xmm2, xmm1 psrld xmm2, 15 packuswb xmm2, xmm0 movd ebx, xmm2 mov [r0], bl inc r0 add r15, r6 paddw xmm3, xmm7 ; inc u dec rax jg FAST_WIDTH FAST_WIDTH_END: shr r15, 16 mov bl, [r12+r15] mov [r0],bl inc r0 add r14, rbp add r0, r1 paddw xmm4, xmm6 ; inc v psllw xmm4, 1 psrlw xmm4, 1 dec r3 jg FAST_HEIGHT FAST_LAST_ROW: shr r14, 15 imul r14, r5 add r4, r14 mov r15, 32768 FAST_LAST_ROW_WIDTH: mov r11, r15 shr r11, 16 mov bl, [r4+r11] mov [r0],bl inc r0 add r15, r6 dec r2 jg FAST_LAST_ROW_WIDTH FAST_LAST_ROW_END: pop rbp pop rbx pop r15 pop r14 pop r13 pop r12 ret %endif