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672 строки
18 KiB
NASM
672 строки
18 KiB
NASM
;
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; jdsamss2-64.asm - upsampling (64-bit SSE2)
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;
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; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
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; Copyright 2009 D. R. Commander
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;
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; Based on
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; x86 SIMD extension for IJG JPEG library
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; Copyright (C) 1999-2006, MIYASAKA Masaru.
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; For conditions of distribution and use, see copyright notice in jsimdext.inc
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;
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; This file should be assembled with NASM (Netwide Assembler),
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; can *not* be assembled with Microsoft's MASM or any compatible
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; assembler (including Borland's Turbo Assembler).
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; NASM is available from http://nasm.sourceforge.net/ or
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; http://sourceforge.net/project/showfiles.php?group_id=6208
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;
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; [TAB8]
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%include "jsimdext.inc"
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; --------------------------------------------------------------------------
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SECTION SEG_CONST
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alignz 16
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global EXTN(jconst_fancy_upsample_sse2)
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EXTN(jconst_fancy_upsample_sse2):
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PW_ONE times 8 dw 1
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PW_TWO times 8 dw 2
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PW_THREE times 8 dw 3
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PW_SEVEN times 8 dw 7
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PW_EIGHT times 8 dw 8
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alignz 16
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; --------------------------------------------------------------------------
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SECTION SEG_TEXT
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BITS 64
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;
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; Fancy processing for the common case of 2:1 horizontal and 1:1 vertical.
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;
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; The upsampling algorithm is linear interpolation between pixel centers,
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; also known as a "triangle filter". This is a good compromise between
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; speed and visual quality. The centers of the output pixels are 1/4 and 3/4
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; of the way between input pixel centers.
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;
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; GLOBAL(void)
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; jsimd_h2v1_fancy_upsample_sse2 (int max_v_samp_factor,
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; JDIMENSION downsampled_width,
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; JSAMPARRAY input_data,
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; JSAMPARRAY * output_data_ptr);
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;
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; r10 = int max_v_samp_factor
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; r11 = JDIMENSION downsampled_width
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; r12 = JSAMPARRAY input_data
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; r13 = JSAMPARRAY * output_data_ptr
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align 16
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global EXTN(jsimd_h2v1_fancy_upsample_sse2)
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EXTN(jsimd_h2v1_fancy_upsample_sse2):
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push rbp
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mov rax,rsp
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mov rbp,rsp
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collect_args
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mov rax, r11 ; colctr
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test rax,rax
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jz near .return
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mov rcx, r10 ; rowctr
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test rcx,rcx
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jz near .return
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mov rsi, r12 ; input_data
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mov rdi, r13
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mov rdi, JSAMPARRAY [rdi] ; output_data
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.rowloop:
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push rax ; colctr
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push rdi
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push rsi
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mov rsi, JSAMPROW [rsi] ; inptr
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mov rdi, JSAMPROW [rdi] ; outptr
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test rax, SIZEOF_XMMWORD-1
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jz short .skip
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mov dl, JSAMPLE [rsi+(rax-1)*SIZEOF_JSAMPLE]
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mov JSAMPLE [rsi+rax*SIZEOF_JSAMPLE], dl ; insert a dummy sample
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.skip:
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pxor xmm0,xmm0 ; xmm0=(all 0's)
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pcmpeqb xmm7,xmm7
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psrldq xmm7,(SIZEOF_XMMWORD-1)
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pand xmm7, XMMWORD [rsi+0*SIZEOF_XMMWORD]
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add rax, byte SIZEOF_XMMWORD-1
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and rax, byte -SIZEOF_XMMWORD
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cmp rax, byte SIZEOF_XMMWORD
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ja short .columnloop
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.columnloop_last:
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pcmpeqb xmm6,xmm6
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pslldq xmm6,(SIZEOF_XMMWORD-1)
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pand xmm6, XMMWORD [rsi+0*SIZEOF_XMMWORD]
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jmp short .upsample
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.columnloop:
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movdqa xmm6, XMMWORD [rsi+1*SIZEOF_XMMWORD]
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pslldq xmm6,(SIZEOF_XMMWORD-1)
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.upsample:
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movdqa xmm1, XMMWORD [rsi+0*SIZEOF_XMMWORD]
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movdqa xmm2,xmm1
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movdqa xmm3,xmm1 ; xmm1=( 0 1 2 ... 13 14 15)
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pslldq xmm2,1 ; xmm2=(-- 0 1 ... 12 13 14)
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psrldq xmm3,1 ; xmm3=( 1 2 3 ... 14 15 --)
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por xmm2,xmm7 ; xmm2=(-1 0 1 ... 12 13 14)
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por xmm3,xmm6 ; xmm3=( 1 2 3 ... 14 15 16)
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movdqa xmm7,xmm1
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psrldq xmm7,(SIZEOF_XMMWORD-1) ; xmm7=(15 -- -- ... -- -- --)
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movdqa xmm4,xmm1
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punpcklbw xmm1,xmm0 ; xmm1=( 0 1 2 3 4 5 6 7)
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punpckhbw xmm4,xmm0 ; xmm4=( 8 9 10 11 12 13 14 15)
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movdqa xmm5,xmm2
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punpcklbw xmm2,xmm0 ; xmm2=(-1 0 1 2 3 4 5 6)
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punpckhbw xmm5,xmm0 ; xmm5=( 7 8 9 10 11 12 13 14)
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movdqa xmm6,xmm3
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punpcklbw xmm3,xmm0 ; xmm3=( 1 2 3 4 5 6 7 8)
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punpckhbw xmm6,xmm0 ; xmm6=( 9 10 11 12 13 14 15 16)
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pmullw xmm1,[rel PW_THREE]
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pmullw xmm4,[rel PW_THREE]
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paddw xmm2,[rel PW_ONE]
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paddw xmm5,[rel PW_ONE]
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paddw xmm3,[rel PW_TWO]
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paddw xmm6,[rel PW_TWO]
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paddw xmm2,xmm1
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paddw xmm5,xmm4
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psrlw xmm2,2 ; xmm2=OutLE=( 0 2 4 6 8 10 12 14)
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psrlw xmm5,2 ; xmm5=OutHE=(16 18 20 22 24 26 28 30)
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paddw xmm3,xmm1
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paddw xmm6,xmm4
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psrlw xmm3,2 ; xmm3=OutLO=( 1 3 5 7 9 11 13 15)
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psrlw xmm6,2 ; xmm6=OutHO=(17 19 21 23 25 27 29 31)
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psllw xmm3,BYTE_BIT
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psllw xmm6,BYTE_BIT
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por xmm2,xmm3 ; xmm2=OutL=( 0 1 2 ... 13 14 15)
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por xmm5,xmm6 ; xmm5=OutH=(16 17 18 ... 29 30 31)
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movdqa XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm2
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movdqa XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm5
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sub rax, byte SIZEOF_XMMWORD
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add rsi, byte 1*SIZEOF_XMMWORD ; inptr
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add rdi, byte 2*SIZEOF_XMMWORD ; outptr
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cmp rax, byte SIZEOF_XMMWORD
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ja near .columnloop
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test eax,eax
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jnz near .columnloop_last
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pop rsi
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pop rdi
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pop rax
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add rsi, byte SIZEOF_JSAMPROW ; input_data
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add rdi, byte SIZEOF_JSAMPROW ; output_data
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dec rcx ; rowctr
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jg near .rowloop
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.return:
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uncollect_args
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pop rbp
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ret
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; --------------------------------------------------------------------------
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;
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; Fancy processing for the common case of 2:1 horizontal and 2:1 vertical.
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; Again a triangle filter; see comments for h2v1 case, above.
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;
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; GLOBAL(void)
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; jsimd_h2v2_fancy_upsample_sse2 (int max_v_samp_factor,
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; JDIMENSION downsampled_width,
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; JSAMPARRAY input_data,
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; JSAMPARRAY * output_data_ptr);
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;
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; r10 = int max_v_samp_factor
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; r11 = JDIMENSION downsampled_width
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; r12 = JSAMPARRAY input_data
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; r13 = JSAMPARRAY * output_data_ptr
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%define wk(i) rbp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
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%define WK_NUM 4
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align 16
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global EXTN(jsimd_h2v2_fancy_upsample_sse2)
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EXTN(jsimd_h2v2_fancy_upsample_sse2):
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push rbp
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mov rax,rsp ; rax = original rbp
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sub rsp, byte 4
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and rsp, byte (-SIZEOF_XMMWORD) ; align to 128 bits
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mov [rsp],rax
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mov rbp,rsp ; rbp = aligned rbp
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lea rsp, [wk(0)]
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collect_args
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push rbx
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mov rax, r11 ; colctr
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test rax,rax
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jz near .return
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mov rcx, r10 ; rowctr
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test rcx,rcx
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jz near .return
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mov rsi, r12 ; input_data
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mov rdi, r13
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mov rdi, JSAMPARRAY [rdi] ; output_data
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.rowloop:
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push rax ; colctr
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push rcx
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push rdi
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push rsi
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mov rcx, JSAMPROW [rsi-1*SIZEOF_JSAMPROW] ; inptr1(above)
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mov rbx, JSAMPROW [rsi+0*SIZEOF_JSAMPROW] ; inptr0
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mov rsi, JSAMPROW [rsi+1*SIZEOF_JSAMPROW] ; inptr1(below)
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mov rdx, JSAMPROW [rdi+0*SIZEOF_JSAMPROW] ; outptr0
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mov rdi, JSAMPROW [rdi+1*SIZEOF_JSAMPROW] ; outptr1
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test rax, SIZEOF_XMMWORD-1
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jz short .skip
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push rdx
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mov dl, JSAMPLE [rcx+(rax-1)*SIZEOF_JSAMPLE]
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mov JSAMPLE [rcx+rax*SIZEOF_JSAMPLE], dl
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mov dl, JSAMPLE [rbx+(rax-1)*SIZEOF_JSAMPLE]
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mov JSAMPLE [rbx+rax*SIZEOF_JSAMPLE], dl
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mov dl, JSAMPLE [rsi+(rax-1)*SIZEOF_JSAMPLE]
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mov JSAMPLE [rsi+rax*SIZEOF_JSAMPLE], dl ; insert a dummy sample
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pop rdx
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.skip:
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; -- process the first column block
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movdqa xmm0, XMMWORD [rbx+0*SIZEOF_XMMWORD] ; xmm0=row[ 0][0]
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movdqa xmm1, XMMWORD [rcx+0*SIZEOF_XMMWORD] ; xmm1=row[-1][0]
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movdqa xmm2, XMMWORD [rsi+0*SIZEOF_XMMWORD] ; xmm2=row[+1][0]
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pxor xmm3,xmm3 ; xmm3=(all 0's)
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movdqa xmm4,xmm0
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punpcklbw xmm0,xmm3 ; xmm0=row[ 0]( 0 1 2 3 4 5 6 7)
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punpckhbw xmm4,xmm3 ; xmm4=row[ 0]( 8 9 10 11 12 13 14 15)
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movdqa xmm5,xmm1
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punpcklbw xmm1,xmm3 ; xmm1=row[-1]( 0 1 2 3 4 5 6 7)
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punpckhbw xmm5,xmm3 ; xmm5=row[-1]( 8 9 10 11 12 13 14 15)
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movdqa xmm6,xmm2
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punpcklbw xmm2,xmm3 ; xmm2=row[+1]( 0 1 2 3 4 5 6 7)
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punpckhbw xmm6,xmm3 ; xmm6=row[+1]( 8 9 10 11 12 13 14 15)
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pmullw xmm0,[rel PW_THREE]
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pmullw xmm4,[rel PW_THREE]
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pcmpeqb xmm7,xmm7
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psrldq xmm7,(SIZEOF_XMMWORD-2)
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paddw xmm1,xmm0 ; xmm1=Int0L=( 0 1 2 3 4 5 6 7)
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paddw xmm5,xmm4 ; xmm5=Int0H=( 8 9 10 11 12 13 14 15)
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paddw xmm2,xmm0 ; xmm2=Int1L=( 0 1 2 3 4 5 6 7)
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paddw xmm6,xmm4 ; xmm6=Int1H=( 8 9 10 11 12 13 14 15)
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movdqa XMMWORD [rdx+0*SIZEOF_XMMWORD], xmm1 ; temporarily save
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movdqa XMMWORD [rdx+1*SIZEOF_XMMWORD], xmm5 ; the intermediate data
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movdqa XMMWORD [rdi+0*SIZEOF_XMMWORD], xmm2
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movdqa XMMWORD [rdi+1*SIZEOF_XMMWORD], xmm6
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pand xmm1,xmm7 ; xmm1=( 0 -- -- -- -- -- -- --)
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pand xmm2,xmm7 ; xmm2=( 0 -- -- -- -- -- -- --)
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movdqa XMMWORD [wk(0)], xmm1
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movdqa XMMWORD [wk(1)], xmm2
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add rax, byte SIZEOF_XMMWORD-1
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and rax, byte -SIZEOF_XMMWORD
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cmp rax, byte SIZEOF_XMMWORD
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ja short .columnloop
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.columnloop_last:
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; -- process the last column block
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pcmpeqb xmm1,xmm1
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pslldq xmm1,(SIZEOF_XMMWORD-2)
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movdqa xmm2,xmm1
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pand xmm1, XMMWORD [rdx+1*SIZEOF_XMMWORD]
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pand xmm2, XMMWORD [rdi+1*SIZEOF_XMMWORD]
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movdqa XMMWORD [wk(2)], xmm1 ; xmm1=(-- -- -- -- -- -- -- 15)
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movdqa XMMWORD [wk(3)], xmm2 ; xmm2=(-- -- -- -- -- -- -- 15)
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jmp near .upsample
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.columnloop:
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; -- process the next column block
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movdqa xmm0, XMMWORD [rbx+1*SIZEOF_XMMWORD] ; xmm0=row[ 0][1]
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movdqa xmm1, XMMWORD [rcx+1*SIZEOF_XMMWORD] ; xmm1=row[-1][1]
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movdqa xmm2, XMMWORD [rsi+1*SIZEOF_XMMWORD] ; xmm2=row[+1][1]
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pxor xmm3,xmm3 ; xmm3=(all 0's)
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movdqa xmm4,xmm0
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punpcklbw xmm0,xmm3 ; xmm0=row[ 0]( 0 1 2 3 4 5 6 7)
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punpckhbw xmm4,xmm3 ; xmm4=row[ 0]( 8 9 10 11 12 13 14 15)
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movdqa xmm5,xmm1
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punpcklbw xmm1,xmm3 ; xmm1=row[-1]( 0 1 2 3 4 5 6 7)
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punpckhbw xmm5,xmm3 ; xmm5=row[-1]( 8 9 10 11 12 13 14 15)
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movdqa xmm6,xmm2
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punpcklbw xmm2,xmm3 ; xmm2=row[+1]( 0 1 2 3 4 5 6 7)
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punpckhbw xmm6,xmm3 ; xmm6=row[+1]( 8 9 10 11 12 13 14 15)
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pmullw xmm0,[rel PW_THREE]
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pmullw xmm4,[rel PW_THREE]
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paddw xmm1,xmm0 ; xmm1=Int0L=( 0 1 2 3 4 5 6 7)
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paddw xmm5,xmm4 ; xmm5=Int0H=( 8 9 10 11 12 13 14 15)
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paddw xmm2,xmm0 ; xmm2=Int1L=( 0 1 2 3 4 5 6 7)
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paddw xmm6,xmm4 ; xmm6=Int1H=( 8 9 10 11 12 13 14 15)
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movdqa XMMWORD [rdx+2*SIZEOF_XMMWORD], xmm1 ; temporarily save
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movdqa XMMWORD [rdx+3*SIZEOF_XMMWORD], xmm5 ; the intermediate data
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movdqa XMMWORD [rdi+2*SIZEOF_XMMWORD], xmm2
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movdqa XMMWORD [rdi+3*SIZEOF_XMMWORD], xmm6
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pslldq xmm1,(SIZEOF_XMMWORD-2) ; xmm1=(-- -- -- -- -- -- -- 0)
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pslldq xmm2,(SIZEOF_XMMWORD-2) ; xmm2=(-- -- -- -- -- -- -- 0)
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movdqa XMMWORD [wk(2)], xmm1
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movdqa XMMWORD [wk(3)], xmm2
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.upsample:
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; -- process the upper row
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movdqa xmm7, XMMWORD [rdx+0*SIZEOF_XMMWORD]
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movdqa xmm3, XMMWORD [rdx+1*SIZEOF_XMMWORD]
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movdqa xmm0,xmm7 ; xmm7=Int0L=( 0 1 2 3 4 5 6 7)
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movdqa xmm4,xmm3 ; xmm3=Int0H=( 8 9 10 11 12 13 14 15)
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psrldq xmm0,2 ; xmm0=( 1 2 3 4 5 6 7 --)
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pslldq xmm4,(SIZEOF_XMMWORD-2) ; xmm4=(-- -- -- -- -- -- -- 8)
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movdqa xmm5,xmm7
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movdqa xmm6,xmm3
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psrldq xmm5,(SIZEOF_XMMWORD-2) ; xmm5=( 7 -- -- -- -- -- -- --)
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pslldq xmm6,2 ; xmm6=(-- 8 9 10 11 12 13 14)
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por xmm0,xmm4 ; xmm0=( 1 2 3 4 5 6 7 8)
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por xmm5,xmm6 ; xmm5=( 7 8 9 10 11 12 13 14)
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movdqa xmm1,xmm7
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movdqa xmm2,xmm3
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pslldq xmm1,2 ; xmm1=(-- 0 1 2 3 4 5 6)
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psrldq xmm2,2 ; xmm2=( 9 10 11 12 13 14 15 --)
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movdqa xmm4,xmm3
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psrldq xmm4,(SIZEOF_XMMWORD-2) ; xmm4=(15 -- -- -- -- -- -- --)
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por xmm1, XMMWORD [wk(0)] ; xmm1=(-1 0 1 2 3 4 5 6)
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por xmm2, XMMWORD [wk(2)] ; xmm2=( 9 10 11 12 13 14 15 16)
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movdqa XMMWORD [wk(0)], xmm4
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pmullw xmm7,[rel PW_THREE]
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pmullw xmm3,[rel PW_THREE]
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paddw xmm1,[rel PW_EIGHT]
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paddw xmm5,[rel PW_EIGHT]
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paddw xmm0,[rel PW_SEVEN]
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paddw xmm2,[rel PW_SEVEN]
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paddw xmm1,xmm7
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paddw xmm5,xmm3
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psrlw xmm1,4 ; xmm1=Out0LE=( 0 2 4 6 8 10 12 14)
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psrlw xmm5,4 ; xmm5=Out0HE=(16 18 20 22 24 26 28 30)
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paddw xmm0,xmm7
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paddw xmm2,xmm3
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psrlw xmm0,4 ; xmm0=Out0LO=( 1 3 5 7 9 11 13 15)
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psrlw xmm2,4 ; xmm2=Out0HO=(17 19 21 23 25 27 29 31)
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psllw xmm0,BYTE_BIT
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psllw xmm2,BYTE_BIT
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por xmm1,xmm0 ; xmm1=Out0L=( 0 1 2 ... 13 14 15)
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por xmm5,xmm2 ; xmm5=Out0H=(16 17 18 ... 29 30 31)
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movdqa XMMWORD [rdx+0*SIZEOF_XMMWORD], xmm1
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movdqa XMMWORD [rdx+1*SIZEOF_XMMWORD], xmm5
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; -- process the lower row
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movdqa xmm6, XMMWORD [rdi+0*SIZEOF_XMMWORD]
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movdqa xmm4, XMMWORD [rdi+1*SIZEOF_XMMWORD]
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movdqa xmm7,xmm6 ; xmm6=Int1L=( 0 1 2 3 4 5 6 7)
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movdqa xmm3,xmm4 ; xmm4=Int1H=( 8 9 10 11 12 13 14 15)
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psrldq xmm7,2 ; xmm7=( 1 2 3 4 5 6 7 --)
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pslldq xmm3,(SIZEOF_XMMWORD-2) ; xmm3=(-- -- -- -- -- -- -- 8)
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movdqa xmm0,xmm6
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movdqa xmm2,xmm4
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psrldq xmm0,(SIZEOF_XMMWORD-2) ; xmm0=( 7 -- -- -- -- -- -- --)
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pslldq xmm2,2 ; xmm2=(-- 8 9 10 11 12 13 14)
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|
|
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 rdx, r11
|
|
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 rdx, r11
|
|
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
|