| ; |
| ; jdsample.asm - upsampling (64-bit SSE2) |
| ; |
| ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB |
| ; Copyright 2009 D. R. Commander |
| ; |
| ; 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 "jsimdext.inc" |
| |
| ; -------------------------------------------------------------------------- |
| SECTION SEG_CONST |
| |
| alignz 16 |
| global EXTN(jconst_fancy_upsample_sse2) |
| |
| EXTN(jconst_fancy_upsample_sse2): |
| |
| PW_ONE times 8 dw 1 |
| PW_TWO times 8 dw 2 |
| PW_THREE times 8 dw 3 |
| PW_SEVEN times 8 dw 7 |
| PW_EIGHT times 8 dw 8 |
| |
| alignz 16 |
| |
| ; -------------------------------------------------------------------------- |
| SECTION SEG_TEXT |
| BITS 64 |
| ; |
| ; Fancy processing for the common case of 2:1 horizontal and 1:1 vertical. |
| ; |
| ; The upsampling algorithm is linear interpolation between pixel centers, |
| ; also known as a "triangle filter". This is a good compromise between |
| ; speed and visual quality. The centers of the output pixels are 1/4 and 3/4 |
| ; of the way between input pixel centers. |
| ; |
| ; GLOBAL(void) |
| ; jsimd_h2v1_fancy_upsample_sse2 (int max_v_samp_factor, |
| ; JDIMENSION downsampled_width, |
| ; JSAMPARRAY input_data, |
| ; JSAMPARRAY *output_data_ptr); |
| ; |
| |
| ; r10 = int max_v_samp_factor |
| ; r11 = JDIMENSION downsampled_width |
| ; r12 = JSAMPARRAY input_data |
| ; r13 = JSAMPARRAY *output_data_ptr |
| |
| align 16 |
| global EXTN(jsimd_h2v1_fancy_upsample_sse2) |
| |
| EXTN(jsimd_h2v1_fancy_upsample_sse2): |
| push rbp |
| mov rax,rsp |
| mov rbp,rsp |
| collect_args |
| |
| mov eax, r11d ; colctr |
| test rax,rax |
| jz near .return |
| |
| mov rcx, r10 ; rowctr |
| test rcx,rcx |
| jz near .return |
| |
| mov rsi, r12 ; input_data |
| mov rdi, r13 |
| mov rdi, JSAMPARRAY [rdi] ; output_data |
| .rowloop: |
| push rax ; colctr |
| push rdi |
| push rsi |
| |
| mov rsi, JSAMPROW [rsi] ; inptr |
| mov rdi, JSAMPROW [rdi] ; outptr |
| |
| test rax, SIZEOF_XMMWORD-1 |
| jz short .skip |
| mov dl, JSAMPLE [rsi+(rax-1)*SIZEOF_JSAMPLE] |
| mov JSAMPLE [rsi+rax*SIZEOF_JSAMPLE], dl ; insert a dummy sample |
| .skip: |
| pxor xmm0,xmm0 ; xmm0=(all 0's) |
| pcmpeqb xmm7,xmm7 |
| psrldq xmm7,(SIZEOF_XMMWORD-1) |
| pand xmm7, XMMWORD [rsi+0*SIZEOF_XMMWORD] |
| |
| add rax, byte SIZEOF_XMMWORD-1 |
| and rax, byte -SIZEOF_XMMWORD |
| cmp rax, byte SIZEOF_XMMWORD |
| ja short .columnloop |
| |
| .columnloop_last: |
| pcmpeqb xmm6,xmm6 |
| pslldq xmm6,(SIZEOF_XMMWORD-1) |
| pand xmm6, XMMWORD [rsi+0*SIZEOF_XMMWORD] |
| jmp short .upsample |
| |
| .columnloop: |
| movdqa xmm6, XMMWORD [rsi+1*SIZEOF_XMMWORD] |
| pslldq xmm6,(SIZEOF_XMMWORD-1) |
| |
| .upsample: |
| movdqa xmm1, XMMWORD [rsi+0*SIZEOF_XMMWORD] |
| movdqa xmm2,xmm1 |
| movdqa xmm3,xmm1 ; xmm1=( 0 1 2 ... 13 14 15) |
| pslldq xmm2,1 ; xmm2=(-- 0 1 ... 12 13 14) |
| psrldq xmm3,1 ; xmm3=( 1 2 3 ... 14 15 --) |
| |
| por xmm2,xmm7 ; xmm2=(-1 0 1 ... 12 13 14) |
| por xmm3,xmm6 ; xmm3=( 1 2 3 ... 14 15 16) |
| |
| movdqa xmm7,xmm1 |
| psrldq xmm7,(SIZEOF_XMMWORD-1) ; xmm7=(15 -- -- ... -- -- --) |
| |
| movdqa xmm4,xmm1 |
| punpcklbw xmm1,xmm0 ; xmm1=( 0 1 2 3 4 5 6 7) |
| punpckhbw xmm4,xmm0 ; xmm4=( 8 9 10 11 12 13 14 15) |
| movdqa xmm5,xmm2 |
| punpcklbw xmm2,xmm0 ; xmm2=(-1 0 1 2 3 4 5 6) |
| punpckhbw xmm5,xmm0 ; xmm5=( 7 8 9 10 11 12 13 14) |
| movdqa xmm6,xmm3 |
| punpcklbw xmm3,xmm0 ; xmm3=( 1 2 3 4 5 6 7 8) |
| punpckhbw xmm6,xmm0 ; xmm6=( 9 10 11 12 13 14 15 16) |
| |
| pmullw xmm1,[rel PW_THREE] |
| pmullw xmm4,[rel PW_THREE] |
| paddw xmm2,[rel PW_ONE] |
| paddw xmm5,[rel PW_ONE] |
| paddw xmm3,[rel PW_TWO] |
| paddw xmm6,[rel PW_TWO] |
| |
| paddw xmm2,xmm1 |
| paddw xmm5,xmm4 |
| psrlw xmm2,2 ; xmm2=OutLE=( 0 2 4 6 8 10 12 14) |
| psrlw xmm5,2 ; xmm5=OutHE=(16 18 20 22 24 26 28 30) |
| paddw xmm3,xmm1 |
| paddw xmm6,xmm4 |
| psrlw xmm3,2 ; xmm3=OutLO=( 1 3 5 7 9 11 13 15) |
| psrlw xmm6,2 ; xmm6=OutHO=(17 19 21 23 25 27 29 31) |
| |
| psllw xmm3,BYTE_BIT |
| psllw xmm6,BYTE_BIT |
| por xmm2,xmm3 ; xmm2=OutL=( 0 1 2 ... 13 14 15) |
| por xmm5,xmm6 ; xmm5=OutH=(16 17 18 ... 29 30 31) |
| |
| movdqa XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm2 |
| movdqa XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm5 |
| |
| sub rax, byte SIZEOF_XMMWORD |
| add rsi, byte 1*SIZEOF_XMMWORD ; inptr |
| add rdi, byte 2*SIZEOF_XMMWORD ; outptr |
| cmp rax, byte SIZEOF_XMMWORD |
| ja near .columnloop |
| test eax,eax |
| jnz near .columnloop_last |
| |
| pop rsi |
| pop rdi |
| pop rax |
| |
| add rsi, byte SIZEOF_JSAMPROW ; input_data |
| add rdi, byte SIZEOF_JSAMPROW ; output_data |
| dec rcx ; rowctr |
| jg near .rowloop |
| |
| .return: |
| uncollect_args |
| pop rbp |
| ret |
| |
| ; -------------------------------------------------------------------------- |
| ; |
| ; Fancy processing for the common case of 2:1 horizontal and 2:1 vertical. |
| ; Again a triangle filter; see comments for h2v1 case, above. |
| ; |
| ; GLOBAL(void) |
| ; jsimd_h2v2_fancy_upsample_sse2 (int max_v_samp_factor, |
| ; JDIMENSION downsampled_width, |
| ; JSAMPARRAY input_data, |
| ; JSAMPARRAY *output_data_ptr); |
| ; |
| |
| ; r10 = int max_v_samp_factor |
| ; r11 = JDIMENSION downsampled_width |
| ; r12 = JSAMPARRAY input_data |
| ; r13 = JSAMPARRAY *output_data_ptr |
| |
| %define wk(i) rbp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM] |
| %define WK_NUM 4 |
| |
| align 16 |
| global EXTN(jsimd_h2v2_fancy_upsample_sse2) |
| |
| EXTN(jsimd_h2v2_fancy_upsample_sse2): |
| push rbp |
| mov rax,rsp ; rax = original rbp |
| sub rsp, byte 4 |
| and rsp, byte (-SIZEOF_XMMWORD) ; align to 128 bits |
| mov [rsp],rax |
| mov rbp,rsp ; rbp = aligned rbp |
| lea rsp, [wk(0)] |
| collect_args |
| push rbx |
| |
| mov eax, r11d ; colctr |
| test rax,rax |
| jz near .return |
| |
| mov rcx, r10 ; rowctr |
| test rcx,rcx |
| jz near .return |
| |
| mov rsi, r12 ; input_data |
| mov rdi, r13 |
| mov rdi, JSAMPARRAY [rdi] ; output_data |
| .rowloop: |
| push rax ; colctr |
| push rcx |
| push rdi |
| push rsi |
| |
| mov rcx, JSAMPROW [rsi-1*SIZEOF_JSAMPROW] ; inptr1(above) |
| mov rbx, JSAMPROW [rsi+0*SIZEOF_JSAMPROW] ; inptr0 |
| mov rsi, JSAMPROW [rsi+1*SIZEOF_JSAMPROW] ; inptr1(below) |
| mov rdx, JSAMPROW [rdi+0*SIZEOF_JSAMPROW] ; outptr0 |
| mov rdi, JSAMPROW [rdi+1*SIZEOF_JSAMPROW] ; outptr1 |
| |
| test rax, SIZEOF_XMMWORD-1 |
| jz short .skip |
| push rdx |
| mov dl, JSAMPLE [rcx+(rax-1)*SIZEOF_JSAMPLE] |
| mov JSAMPLE [rcx+rax*SIZEOF_JSAMPLE], dl |
| mov dl, JSAMPLE [rbx+(rax-1)*SIZEOF_JSAMPLE] |
| mov JSAMPLE [rbx+rax*SIZEOF_JSAMPLE], dl |
| mov dl, JSAMPLE [rsi+(rax-1)*SIZEOF_JSAMPLE] |
| mov JSAMPLE [rsi+rax*SIZEOF_JSAMPLE], dl ; insert a dummy sample |
| pop rdx |
| .skip: |
| ; -- process the first column block |
| |
| movdqa xmm0, XMMWORD [rbx+0*SIZEOF_XMMWORD] ; xmm0=row[ 0][0] |
| movdqa xmm1, XMMWORD [rcx+0*SIZEOF_XMMWORD] ; xmm1=row[-1][0] |
| movdqa xmm2, XMMWORD [rsi+0*SIZEOF_XMMWORD] ; xmm2=row[+1][0] |
| |
| pxor xmm3,xmm3 ; xmm3=(all 0's) |
| movdqa xmm4,xmm0 |
| punpcklbw xmm0,xmm3 ; xmm0=row[ 0]( 0 1 2 3 4 5 6 7) |
| punpckhbw xmm4,xmm3 ; xmm4=row[ 0]( 8 9 10 11 12 13 14 15) |
| movdqa xmm5,xmm1 |
| punpcklbw xmm1,xmm3 ; xmm1=row[-1]( 0 1 2 3 4 5 6 7) |
| punpckhbw xmm5,xmm3 ; xmm5=row[-1]( 8 9 10 11 12 13 14 15) |
| movdqa xmm6,xmm2 |
| punpcklbw xmm2,xmm3 ; xmm2=row[+1]( 0 1 2 3 4 5 6 7) |
| punpckhbw xmm6,xmm3 ; xmm6=row[+1]( 8 9 10 11 12 13 14 15) |
| |
| pmullw xmm0,[rel PW_THREE] |
| pmullw xmm4,[rel PW_THREE] |
| |
| pcmpeqb xmm7,xmm7 |
| psrldq xmm7,(SIZEOF_XMMWORD-2) |
| |
| paddw xmm1,xmm0 ; xmm1=Int0L=( 0 1 2 3 4 5 6 7) |
| paddw xmm5,xmm4 ; xmm5=Int0H=( 8 9 10 11 12 13 14 15) |
| paddw xmm2,xmm0 ; xmm2=Int1L=( 0 1 2 3 4 5 6 7) |
| paddw xmm6,xmm4 ; xmm6=Int1H=( 8 9 10 11 12 13 14 15) |
| |
| movdqa XMMWORD [rdx+0*SIZEOF_XMMWORD], xmm1 ; temporarily save |
| movdqa XMMWORD [rdx+1*SIZEOF_XMMWORD], xmm5 ; the intermediate data |
| movdqa XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm2 |
| movdqa XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm6 |
| |
| pand xmm1,xmm7 ; xmm1=( 0 -- -- -- -- -- -- --) |
| pand xmm2,xmm7 ; xmm2=( 0 -- -- -- -- -- -- --) |
| |
| movdqa XMMWORD [wk(0)], xmm1 |
| movdqa XMMWORD [wk(1)], xmm2 |
| |
| add rax, byte SIZEOF_XMMWORD-1 |
| and rax, byte -SIZEOF_XMMWORD |
| cmp rax, byte SIZEOF_XMMWORD |
| ja short .columnloop |
| |
| .columnloop_last: |
| ; -- process the last column block |
| |
| pcmpeqb xmm1,xmm1 |
| pslldq xmm1,(SIZEOF_XMMWORD-2) |
| movdqa xmm2,xmm1 |
| |
| pand xmm1, XMMWORD [rdx+1*SIZEOF_XMMWORD] |
| pand xmm2, XMMWORD [rdi+1*SIZEOF_XMMWORD] |
| |
| movdqa XMMWORD [wk(2)], xmm1 ; xmm1=(-- -- -- -- -- -- -- 15) |
| movdqa XMMWORD [wk(3)], xmm2 ; xmm2=(-- -- -- -- -- -- -- 15) |
| |
| jmp near .upsample |
| |
| .columnloop: |
| ; -- process the next column block |
| |
| movdqa xmm0, XMMWORD [rbx+1*SIZEOF_XMMWORD] ; xmm0=row[ 0][1] |
| movdqa xmm1, XMMWORD [rcx+1*SIZEOF_XMMWORD] ; xmm1=row[-1][1] |
| movdqa xmm2, XMMWORD [rsi+1*SIZEOF_XMMWORD] ; xmm2=row[+1][1] |
| |
| pxor xmm3,xmm3 ; xmm3=(all 0's) |
| movdqa xmm4,xmm0 |
| punpcklbw xmm0,xmm3 ; xmm0=row[ 0]( 0 1 2 3 4 5 6 7) |
| punpckhbw xmm4,xmm3 ; xmm4=row[ 0]( 8 9 10 11 12 13 14 15) |
| movdqa xmm5,xmm1 |
| punpcklbw xmm1,xmm3 ; xmm1=row[-1]( 0 1 2 3 4 5 6 7) |
| punpckhbw xmm5,xmm3 ; xmm5=row[-1]( 8 9 10 11 12 13 14 15) |
| movdqa xmm6,xmm2 |
| punpcklbw xmm2,xmm3 ; xmm2=row[+1]( 0 1 2 3 4 5 6 7) |
| punpckhbw xmm6,xmm3 ; xmm6=row[+1]( 8 9 10 11 12 13 14 15) |
| |
| pmullw xmm0,[rel PW_THREE] |
| pmullw xmm4,[rel PW_THREE] |
| |
| paddw xmm1,xmm0 ; xmm1=Int0L=( 0 1 2 3 4 5 6 7) |
| paddw xmm5,xmm4 ; xmm5=Int0H=( 8 9 10 11 12 13 14 15) |
| paddw xmm2,xmm0 ; xmm2=Int1L=( 0 1 2 3 4 5 6 7) |
| paddw xmm6,xmm4 ; xmm6=Int1H=( 8 9 10 11 12 13 14 15) |
| |
| movdqa XMMWORD [rdx+2*SIZEOF_XMMWORD], xmm1 ; temporarily save |
| movdqa XMMWORD [rdx+3*SIZEOF_XMMWORD], xmm5 ; the intermediate data |
| movdqa XMMWORD [rdi+2*SIZEOF_XMMWORD], xmm2 |
| movdqa XMMWORD [rdi+3*SIZEOF_XMMWORD], xmm6 |
| |
| pslldq xmm1,(SIZEOF_XMMWORD-2) ; xmm1=(-- -- -- -- -- -- -- 0) |
| pslldq xmm2,(SIZEOF_XMMWORD-2) ; xmm2=(-- -- -- -- -- -- -- 0) |
| |
| movdqa XMMWORD [wk(2)], xmm1 |
| movdqa XMMWORD [wk(3)], xmm2 |
| |
| .upsample: |
| ; -- process the upper row |
| |
| movdqa xmm7, XMMWORD [rdx+0*SIZEOF_XMMWORD] |
| movdqa xmm3, XMMWORD [rdx+1*SIZEOF_XMMWORD] |
| |
| movdqa xmm0,xmm7 ; xmm7=Int0L=( 0 1 2 3 4 5 6 7) |
| movdqa xmm4,xmm3 ; xmm3=Int0H=( 8 9 10 11 12 13 14 15) |
| psrldq xmm0,2 ; xmm0=( 1 2 3 4 5 6 7 --) |
| pslldq xmm4,(SIZEOF_XMMWORD-2) ; xmm4=(-- -- -- -- -- -- -- 8) |
| movdqa xmm5,xmm7 |
| movdqa xmm6,xmm3 |
| psrldq xmm5,(SIZEOF_XMMWORD-2) ; xmm5=( 7 -- -- -- -- -- -- --) |
| pslldq xmm6,2 ; xmm6=(-- 8 9 10 11 12 13 14) |
| |
| por xmm0,xmm4 ; xmm0=( 1 2 3 4 5 6 7 8) |
| por xmm5,xmm6 ; xmm5=( 7 8 9 10 11 12 13 14) |
| |
| movdqa xmm1,xmm7 |
| movdqa xmm2,xmm3 |
| pslldq xmm1,2 ; xmm1=(-- 0 1 2 3 4 5 6) |
| psrldq xmm2,2 ; xmm2=( 9 10 11 12 13 14 15 --) |
| movdqa xmm4,xmm3 |
| psrldq xmm4,(SIZEOF_XMMWORD-2) ; xmm4=(15 -- -- -- -- -- -- --) |
| |
| por xmm1, XMMWORD [wk(0)] ; xmm1=(-1 0 1 2 3 4 5 6) |
| por xmm2, XMMWORD [wk(2)] ; xmm2=( 9 10 11 12 13 14 15 16) |
| |
| movdqa XMMWORD [wk(0)], xmm4 |
| |
| pmullw xmm7,[rel PW_THREE] |
| pmullw xmm3,[rel PW_THREE] |
| paddw xmm1,[rel PW_EIGHT] |
| paddw xmm5,[rel PW_EIGHT] |
| paddw xmm0,[rel PW_SEVEN] |
| paddw xmm2,[rel PW_SEVEN] |
| |
| paddw xmm1,xmm7 |
| paddw xmm5,xmm3 |
| psrlw xmm1,4 ; xmm1=Out0LE=( 0 2 4 6 8 10 12 14) |
| psrlw xmm5,4 ; xmm5=Out0HE=(16 18 20 22 24 26 28 30) |
| paddw xmm0,xmm7 |
| paddw xmm2,xmm3 |
| psrlw xmm0,4 ; xmm0=Out0LO=( 1 3 5 7 9 11 13 15) |
| psrlw xmm2,4 ; xmm2=Out0HO=(17 19 21 23 25 27 29 31) |
| |
| psllw xmm0,BYTE_BIT |
| psllw xmm2,BYTE_BIT |
| por xmm1,xmm0 ; xmm1=Out0L=( 0 1 2 ... 13 14 15) |
| por xmm5,xmm2 ; xmm5=Out0H=(16 17 18 ... 29 30 31) |
| |
| movdqa XMMWORD [rdx+0*SIZEOF_XMMWORD], xmm1 |
| movdqa XMMWORD [rdx+1*SIZEOF_XMMWORD], xmm5 |
| |
| ; -- process the lower row |
| |
| movdqa xmm6, XMMWORD [rdi+0*SIZEOF_XMMWORD] |
| movdqa xmm4, XMMWORD [rdi+1*SIZEOF_XMMWORD] |
| |
| movdqa xmm7,xmm6 ; xmm6=Int1L=( 0 1 2 3 4 5 6 7) |
| movdqa xmm3,xmm4 ; xmm4=Int1H=( 8 9 10 11 12 13 14 15) |
| psrldq xmm7,2 ; xmm7=( 1 2 3 4 5 6 7 --) |
| pslldq xmm3,(SIZEOF_XMMWORD-2) ; xmm3=(-- -- -- -- -- -- -- 8) |
| movdqa xmm0,xmm6 |
| movdqa xmm2,xmm4 |
| psrldq xmm0,(SIZEOF_XMMWORD-2) ; xmm0=( 7 -- -- -- -- -- -- --) |
| pslldq xmm2,2 ; xmm2=(-- 8 9 10 11 12 13 14) |
| |
| por xmm7,xmm3 ; xmm7=( 1 2 3 4 5 6 7 8) |
| por xmm0,xmm2 ; xmm0=( 7 8 9 10 11 12 13 14) |
| |
| movdqa xmm1,xmm6 |
| movdqa xmm5,xmm4 |
| pslldq xmm1,2 ; xmm1=(-- 0 1 2 3 4 5 6) |
| psrldq xmm5,2 ; xmm5=( 9 10 11 12 13 14 15 --) |
| movdqa xmm3,xmm4 |
| psrldq xmm3,(SIZEOF_XMMWORD-2) ; xmm3=(15 -- -- -- -- -- -- --) |
| |
| por xmm1, XMMWORD [wk(1)] ; xmm1=(-1 0 1 2 3 4 5 6) |
| por xmm5, XMMWORD [wk(3)] ; xmm5=( 9 10 11 12 13 14 15 16) |
| |
| movdqa XMMWORD [wk(1)], xmm3 |
| |
| pmullw xmm6,[rel PW_THREE] |
| pmullw xmm4,[rel PW_THREE] |
| paddw xmm1,[rel PW_EIGHT] |
| paddw xmm0,[rel PW_EIGHT] |
| paddw xmm7,[rel PW_SEVEN] |
| paddw xmm5,[rel PW_SEVEN] |
| |
| paddw xmm1,xmm6 |
| paddw xmm0,xmm4 |
| psrlw xmm1,4 ; xmm1=Out1LE=( 0 2 4 6 8 10 12 14) |
| psrlw xmm0,4 ; xmm0=Out1HE=(16 18 20 22 24 26 28 30) |
| paddw xmm7,xmm6 |
| paddw xmm5,xmm4 |
| psrlw xmm7,4 ; xmm7=Out1LO=( 1 3 5 7 9 11 13 15) |
| psrlw xmm5,4 ; xmm5=Out1HO=(17 19 21 23 25 27 29 31) |
| |
| psllw xmm7,BYTE_BIT |
| psllw xmm5,BYTE_BIT |
| por xmm1,xmm7 ; xmm1=Out1L=( 0 1 2 ... 13 14 15) |
| por xmm0,xmm5 ; xmm0=Out1H=(16 17 18 ... 29 30 31) |
| |
| movdqa XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm1 |
| movdqa XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm0 |
| |
| sub rax, byte SIZEOF_XMMWORD |
| add rcx, byte 1*SIZEOF_XMMWORD ; inptr1(above) |
| add rbx, byte 1*SIZEOF_XMMWORD ; inptr0 |
| add rsi, byte 1*SIZEOF_XMMWORD ; inptr1(below) |
| add rdx, byte 2*SIZEOF_XMMWORD ; outptr0 |
| add rdi, byte 2*SIZEOF_XMMWORD ; outptr1 |
| cmp rax, byte SIZEOF_XMMWORD |
| ja near .columnloop |
| test rax,rax |
| jnz near .columnloop_last |
| |
| pop rsi |
| pop rdi |
| pop rcx |
| pop rax |
| |
| add rsi, byte 1*SIZEOF_JSAMPROW ; input_data |
| add rdi, byte 2*SIZEOF_JSAMPROW ; output_data |
| sub rcx, byte 2 ; rowctr |
| jg near .rowloop |
| |
| .return: |
| pop rbx |
| uncollect_args |
| mov rsp,rbp ; rsp <- aligned rbp |
| pop rsp ; rsp <- original rbp |
| pop rbp |
| ret |
| |
| ; -------------------------------------------------------------------------- |
| ; |
| ; Fast processing for the common case of 2:1 horizontal and 1:1 vertical. |
| ; It's still a box filter. |
| ; |
| ; GLOBAL(void) |
| ; jsimd_h2v1_upsample_sse2 (int max_v_samp_factor, |
| ; JDIMENSION output_width, |
| ; JSAMPARRAY input_data, |
| ; JSAMPARRAY *output_data_ptr); |
| ; |
| |
| ; r10 = int max_v_samp_factor |
| ; r11 = JDIMENSION output_width |
| ; r12 = JSAMPARRAY input_data |
| ; r13 = JSAMPARRAY *output_data_ptr |
| |
| align 16 |
| global EXTN(jsimd_h2v1_upsample_sse2) |
| |
| EXTN(jsimd_h2v1_upsample_sse2): |
| push rbp |
| mov rax,rsp |
| mov rbp,rsp |
| collect_args |
| |
| mov edx, r11d |
| add rdx, byte (2*SIZEOF_XMMWORD)-1 |
| and rdx, byte -(2*SIZEOF_XMMWORD) |
| jz near .return |
| |
| mov rcx, r10 ; rowctr |
| test rcx,rcx |
| jz short .return |
| |
| mov rsi, r12 ; input_data |
| mov rdi, r13 |
| mov rdi, JSAMPARRAY [rdi] ; output_data |
| .rowloop: |
| push rdi |
| push rsi |
| |
| mov rsi, JSAMPROW [rsi] ; inptr |
| mov rdi, JSAMPROW [rdi] ; outptr |
| mov rax,rdx ; colctr |
| .columnloop: |
| |
| movdqa xmm0, XMMWORD [rsi+0*SIZEOF_XMMWORD] |
| |
| movdqa xmm1,xmm0 |
| punpcklbw xmm0,xmm0 |
| punpckhbw xmm1,xmm1 |
| |
| movdqa XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm0 |
| movdqa XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm1 |
| |
| sub rax, byte 2*SIZEOF_XMMWORD |
| jz short .nextrow |
| |
| movdqa xmm2, XMMWORD [rsi+1*SIZEOF_XMMWORD] |
| |
| movdqa xmm3,xmm2 |
| punpcklbw xmm2,xmm2 |
| punpckhbw xmm3,xmm3 |
| |
| movdqa XMMWORD [rdi+2*SIZEOF_XMMWORD], xmm2 |
| movdqa XMMWORD [rdi+3*SIZEOF_XMMWORD], xmm3 |
| |
| sub rax, byte 2*SIZEOF_XMMWORD |
| jz short .nextrow |
| |
| add rsi, byte 2*SIZEOF_XMMWORD ; inptr |
| add rdi, byte 4*SIZEOF_XMMWORD ; outptr |
| jmp short .columnloop |
| |
| .nextrow: |
| pop rsi |
| pop rdi |
| |
| add rsi, byte SIZEOF_JSAMPROW ; input_data |
| add rdi, byte SIZEOF_JSAMPROW ; output_data |
| dec rcx ; rowctr |
| jg short .rowloop |
| |
| .return: |
| uncollect_args |
| pop rbp |
| ret |
| |
| ; -------------------------------------------------------------------------- |
| ; |
| ; Fast processing for the common case of 2:1 horizontal and 2:1 vertical. |
| ; It's still a box filter. |
| ; |
| ; GLOBAL(void) |
| ; jsimd_h2v2_upsample_sse2 (nt max_v_samp_factor, |
| ; JDIMENSION output_width, |
| ; JSAMPARRAY input_data, |
| ; JSAMPARRAY *output_data_ptr); |
| ; |
| |
| ; r10 = int max_v_samp_factor |
| ; r11 = JDIMENSION output_width |
| ; r12 = JSAMPARRAY input_data |
| ; r13 = JSAMPARRAY *output_data_ptr |
| |
| align 16 |
| global EXTN(jsimd_h2v2_upsample_sse2) |
| |
| EXTN(jsimd_h2v2_upsample_sse2): |
| push rbp |
| mov rax,rsp |
| mov rbp,rsp |
| collect_args |
| push rbx |
| |
| mov edx, r11d |
| add rdx, byte (2*SIZEOF_XMMWORD)-1 |
| and rdx, byte -(2*SIZEOF_XMMWORD) |
| jz near .return |
| |
| mov rcx, r10 ; rowctr |
| test rcx,rcx |
| jz near .return |
| |
| mov rsi, r12 ; input_data |
| mov rdi, r13 |
| mov rdi, JSAMPARRAY [rdi] ; output_data |
| .rowloop: |
| push rdi |
| push rsi |
| |
| mov rsi, JSAMPROW [rsi] ; inptr |
| mov rbx, JSAMPROW [rdi+0*SIZEOF_JSAMPROW] ; outptr0 |
| mov rdi, JSAMPROW [rdi+1*SIZEOF_JSAMPROW] ; outptr1 |
| mov rax,rdx ; colctr |
| .columnloop: |
| |
| movdqa xmm0, XMMWORD [rsi+0*SIZEOF_XMMWORD] |
| |
| movdqa xmm1,xmm0 |
| punpcklbw xmm0,xmm0 |
| punpckhbw xmm1,xmm1 |
| |
| movdqa XMMWORD [rbx+0*SIZEOF_XMMWORD], xmm0 |
| movdqa XMMWORD [rbx+1*SIZEOF_XMMWORD], xmm1 |
| movdqa XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm0 |
| movdqa XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm1 |
| |
| sub rax, byte 2*SIZEOF_XMMWORD |
| jz short .nextrow |
| |
| movdqa xmm2, XMMWORD [rsi+1*SIZEOF_XMMWORD] |
| |
| movdqa xmm3,xmm2 |
| punpcklbw xmm2,xmm2 |
| punpckhbw xmm3,xmm3 |
| |
| movdqa XMMWORD [rbx+2*SIZEOF_XMMWORD], xmm2 |
| movdqa XMMWORD [rbx+3*SIZEOF_XMMWORD], xmm3 |
| movdqa XMMWORD [rdi+2*SIZEOF_XMMWORD], xmm2 |
| movdqa XMMWORD [rdi+3*SIZEOF_XMMWORD], xmm3 |
| |
| sub rax, byte 2*SIZEOF_XMMWORD |
| jz short .nextrow |
| |
| add rsi, byte 2*SIZEOF_XMMWORD ; inptr |
| add rbx, byte 4*SIZEOF_XMMWORD ; outptr0 |
| add rdi, byte 4*SIZEOF_XMMWORD ; outptr1 |
| jmp short .columnloop |
| |
| .nextrow: |
| pop rsi |
| pop rdi |
| |
| add rsi, byte 1*SIZEOF_JSAMPROW ; input_data |
| add rdi, byte 2*SIZEOF_JSAMPROW ; output_data |
| sub rcx, byte 2 ; rowctr |
| jg near .rowloop |
| |
| .return: |
| pop rbx |
| uncollect_args |
| pop rbp |
| ret |
| |
| ; For some reason, the OS X linker does not honor the request to align the |
| ; segment unless we do this. |
| align 16 |
