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Unified Diff: simd/jdsamss2.asm

Issue 1953443002: Update to libjpeg_turbo 1.4.90 (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/libjpeg_turbo.git@master
Patch Set: Created 4 years, 7 months ago
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Index: simd/jdsamss2.asm
diff --git a/simd/jdsamss2.asm b/simd/jdsamss2.asm
deleted file mode 100644
index c91a863b9af0e949a62f1fb6c3386d3a615f50f0..0000000000000000000000000000000000000000
--- a/simd/jdsamss2.asm
+++ /dev/null
@@ -1,729 +0,0 @@
-;
-; jdsamss2.asm - upsampling (SSE2)
-;
-; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
-;
-; 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) PRIVATE
-
-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 32
-;
-; 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);
-;
-
-%define max_v_samp(b) (b)+8 ; int max_v_samp_factor
-%define downsamp_width(b) (b)+12 ; JDIMENSION downsampled_width
-%define input_data(b) (b)+16 ; JSAMPARRAY input_data
-%define output_data_ptr(b) (b)+20 ; JSAMPARRAY * output_data_ptr
-
- align 16
- global EXTN(jsimd_h2v1_fancy_upsample_sse2) PRIVATE
-
-EXTN(jsimd_h2v1_fancy_upsample_sse2):
- push ebp
- mov ebp,esp
- pushpic ebx
-; push ecx ; need not be preserved
-; push edx ; need not be preserved
- push esi
- push edi
-
- get_GOT ebx ; get GOT address
-
- mov eax, JDIMENSION [downsamp_width(ebp)] ; colctr
- test eax,eax
- jz near .return
-
- mov ecx, INT [max_v_samp(ebp)] ; rowctr
- test ecx,ecx
- jz near .return
-
- mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
- mov edi, POINTER [output_data_ptr(ebp)]
- mov edi, JSAMPARRAY [edi] ; output_data
- alignx 16,7
-.rowloop:
- push eax ; colctr
- push edi
- push esi
-
- mov esi, JSAMPROW [esi] ; inptr
- mov edi, JSAMPROW [edi] ; outptr
-
- test eax, SIZEOF_XMMWORD-1
- jz short .skip
- mov dl, JSAMPLE [esi+(eax-1)*SIZEOF_JSAMPLE]
- mov JSAMPLE [esi+eax*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 [esi+0*SIZEOF_XMMWORD]
-
- add eax, byte SIZEOF_XMMWORD-1
- and eax, byte -SIZEOF_XMMWORD
- cmp eax, byte SIZEOF_XMMWORD
- ja short .columnloop
- alignx 16,7
-
-.columnloop_last:
- pcmpeqb xmm6,xmm6
- pslldq xmm6,(SIZEOF_XMMWORD-1)
- pand xmm6, XMMWORD [esi+0*SIZEOF_XMMWORD]
- jmp short .upsample
- alignx 16,7
-
-.columnloop:
- movdqa xmm6, XMMWORD [esi+1*SIZEOF_XMMWORD]
- pslldq xmm6,(SIZEOF_XMMWORD-1)
-
-.upsample:
- movdqa xmm1, XMMWORD [esi+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,[GOTOFF(ebx,PW_THREE)]
- pmullw xmm4,[GOTOFF(ebx,PW_THREE)]
- paddw xmm2,[GOTOFF(ebx,PW_ONE)]
- paddw xmm5,[GOTOFF(ebx,PW_ONE)]
- paddw xmm3,[GOTOFF(ebx,PW_TWO)]
- paddw xmm6,[GOTOFF(ebx,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 [edi+0*SIZEOF_XMMWORD], xmm2
- movdqa XMMWORD [edi+1*SIZEOF_XMMWORD], xmm5
-
- sub eax, byte SIZEOF_XMMWORD
- add esi, byte 1*SIZEOF_XMMWORD ; inptr
- add edi, byte 2*SIZEOF_XMMWORD ; outptr
- cmp eax, byte SIZEOF_XMMWORD
- ja near .columnloop
- test eax,eax
- jnz near .columnloop_last
-
- pop esi
- pop edi
- pop eax
-
- add esi, byte SIZEOF_JSAMPROW ; input_data
- add edi, byte SIZEOF_JSAMPROW ; output_data
- dec ecx ; rowctr
- jg near .rowloop
-
-.return:
- pop edi
- pop esi
-; pop edx ; need not be preserved
-; pop ecx ; need not be preserved
- poppic ebx
- pop ebp
- 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);
-;
-
-%define max_v_samp(b) (b)+8 ; int max_v_samp_factor
-%define downsamp_width(b) (b)+12 ; JDIMENSION downsampled_width
-%define input_data(b) (b)+16 ; JSAMPARRAY input_data
-%define output_data_ptr(b) (b)+20 ; JSAMPARRAY * output_data_ptr
-
-%define original_ebp ebp+0
-%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
-%define WK_NUM 4
-%define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr
-
- align 16
- global EXTN(jsimd_h2v2_fancy_upsample_sse2) PRIVATE
-
-EXTN(jsimd_h2v2_fancy_upsample_sse2):
- push ebp
- mov eax,esp ; eax = original ebp
- sub esp, byte 4
- and esp, byte (-SIZEOF_XMMWORD) ; align to 128 bits
- mov [esp],eax
- mov ebp,esp ; ebp = aligned ebp
- lea esp, [wk(0)]
- pushpic eax ; make a room for GOT address
- push ebx
-; push ecx ; need not be preserved
-; push edx ; need not be preserved
- push esi
- push edi
-
- get_GOT ebx ; get GOT address
- movpic POINTER [gotptr], ebx ; save GOT address
-
- mov edx,eax ; edx = original ebp
- mov eax, JDIMENSION [downsamp_width(edx)] ; colctr
- test eax,eax
- jz near .return
-
- mov ecx, INT [max_v_samp(edx)] ; rowctr
- test ecx,ecx
- jz near .return
-
- mov esi, JSAMPARRAY [input_data(edx)] ; input_data
- mov edi, POINTER [output_data_ptr(edx)]
- mov edi, JSAMPARRAY [edi] ; output_data
- alignx 16,7
-.rowloop:
- push eax ; colctr
- push ecx
- push edi
- push esi
-
- mov ecx, JSAMPROW [esi-1*SIZEOF_JSAMPROW] ; inptr1(above)
- mov ebx, JSAMPROW [esi+0*SIZEOF_JSAMPROW] ; inptr0
- mov esi, JSAMPROW [esi+1*SIZEOF_JSAMPROW] ; inptr1(below)
- mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] ; outptr0
- mov edi, JSAMPROW [edi+1*SIZEOF_JSAMPROW] ; outptr1
-
- test eax, SIZEOF_XMMWORD-1
- jz short .skip
- push edx
- mov dl, JSAMPLE [ecx+(eax-1)*SIZEOF_JSAMPLE]
- mov JSAMPLE [ecx+eax*SIZEOF_JSAMPLE], dl
- mov dl, JSAMPLE [ebx+(eax-1)*SIZEOF_JSAMPLE]
- mov JSAMPLE [ebx+eax*SIZEOF_JSAMPLE], dl
- mov dl, JSAMPLE [esi+(eax-1)*SIZEOF_JSAMPLE]
- mov JSAMPLE [esi+eax*SIZEOF_JSAMPLE], dl ; insert a dummy sample
- pop edx
-.skip:
- ; -- process the first column block
-
- movdqa xmm0, XMMWORD [ebx+0*SIZEOF_XMMWORD] ; xmm0=row[ 0][0]
- movdqa xmm1, XMMWORD [ecx+0*SIZEOF_XMMWORD] ; xmm1=row[-1][0]
- movdqa xmm2, XMMWORD [esi+0*SIZEOF_XMMWORD] ; xmm2=row[+1][0]
-
- pushpic ebx
- movpic ebx, POINTER [gotptr] ; load GOT address
-
- 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,[GOTOFF(ebx,PW_THREE)]
- pmullw xmm4,[GOTOFF(ebx,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 [edx+0*SIZEOF_XMMWORD], xmm1 ; temporarily save
- movdqa XMMWORD [edx+1*SIZEOF_XMMWORD], xmm5 ; the intermediate data
- movdqa XMMWORD [edi+0*SIZEOF_XMMWORD], xmm2
- movdqa XMMWORD [edi+1*SIZEOF_XMMWORD], xmm6
-
- pand xmm1,xmm7 ; xmm1=( 0 -- -- -- -- -- -- --)
- pand xmm2,xmm7 ; xmm2=( 0 -- -- -- -- -- -- --)
-
- movdqa XMMWORD [wk(0)], xmm1
- movdqa XMMWORD [wk(1)], xmm2
-
- poppic ebx
-
- add eax, byte SIZEOF_XMMWORD-1
- and eax, byte -SIZEOF_XMMWORD
- cmp eax, byte SIZEOF_XMMWORD
- ja short .columnloop
- alignx 16,7
-
-.columnloop_last:
- ; -- process the last column block
-
- pushpic ebx
- movpic ebx, POINTER [gotptr] ; load GOT address
-
- pcmpeqb xmm1,xmm1
- pslldq xmm1,(SIZEOF_XMMWORD-2)
- movdqa xmm2,xmm1
-
- pand xmm1, XMMWORD [edx+1*SIZEOF_XMMWORD]
- pand xmm2, XMMWORD [edi+1*SIZEOF_XMMWORD]
-
- movdqa XMMWORD [wk(2)], xmm1 ; xmm1=(-- -- -- -- -- -- -- 15)
- movdqa XMMWORD [wk(3)], xmm2 ; xmm2=(-- -- -- -- -- -- -- 15)
-
- jmp near .upsample
- alignx 16,7
-
-.columnloop:
- ; -- process the next column block
-
- movdqa xmm0, XMMWORD [ebx+1*SIZEOF_XMMWORD] ; xmm0=row[ 0][1]
- movdqa xmm1, XMMWORD [ecx+1*SIZEOF_XMMWORD] ; xmm1=row[-1][1]
- movdqa xmm2, XMMWORD [esi+1*SIZEOF_XMMWORD] ; xmm2=row[+1][1]
-
- pushpic ebx
- movpic ebx, POINTER [gotptr] ; load GOT address
-
- 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,[GOTOFF(ebx,PW_THREE)]
- pmullw xmm4,[GOTOFF(ebx,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 [edx+2*SIZEOF_XMMWORD], xmm1 ; temporarily save
- movdqa XMMWORD [edx+3*SIZEOF_XMMWORD], xmm5 ; the intermediate data
- movdqa XMMWORD [edi+2*SIZEOF_XMMWORD], xmm2
- movdqa XMMWORD [edi+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 [edx+0*SIZEOF_XMMWORD]
- movdqa xmm3, XMMWORD [edx+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,[GOTOFF(ebx,PW_THREE)]
- pmullw xmm3,[GOTOFF(ebx,PW_THREE)]
- paddw xmm1,[GOTOFF(ebx,PW_EIGHT)]
- paddw xmm5,[GOTOFF(ebx,PW_EIGHT)]
- paddw xmm0,[GOTOFF(ebx,PW_SEVEN)]
- paddw xmm2,[GOTOFF(ebx,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 [edx+0*SIZEOF_XMMWORD], xmm1
- movdqa XMMWORD [edx+1*SIZEOF_XMMWORD], xmm5
-
- ; -- process the lower row
-
- movdqa xmm6, XMMWORD [edi+0*SIZEOF_XMMWORD]
- movdqa xmm4, XMMWORD [edi+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,[GOTOFF(ebx,PW_THREE)]
- pmullw xmm4,[GOTOFF(ebx,PW_THREE)]
- paddw xmm1,[GOTOFF(ebx,PW_EIGHT)]
- paddw xmm0,[GOTOFF(ebx,PW_EIGHT)]
- paddw xmm7,[GOTOFF(ebx,PW_SEVEN)]
- paddw xmm5,[GOTOFF(ebx,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 [edi+0*SIZEOF_XMMWORD], xmm1
- movdqa XMMWORD [edi+1*SIZEOF_XMMWORD], xmm0
-
- poppic ebx
-
- sub eax, byte SIZEOF_XMMWORD
- add ecx, byte 1*SIZEOF_XMMWORD ; inptr1(above)
- add ebx, byte 1*SIZEOF_XMMWORD ; inptr0
- add esi, byte 1*SIZEOF_XMMWORD ; inptr1(below)
- add edx, byte 2*SIZEOF_XMMWORD ; outptr0
- add edi, byte 2*SIZEOF_XMMWORD ; outptr1
- cmp eax, byte SIZEOF_XMMWORD
- ja near .columnloop
- test eax,eax
- jnz near .columnloop_last
-
- pop esi
- pop edi
- pop ecx
- pop eax
-
- add esi, byte 1*SIZEOF_JSAMPROW ; input_data
- add edi, byte 2*SIZEOF_JSAMPROW ; output_data
- sub ecx, byte 2 ; rowctr
- jg near .rowloop
-
-.return:
- pop edi
- pop esi
-; pop edx ; need not be preserved
-; pop ecx ; need not be preserved
- pop ebx
- mov esp,ebp ; esp <- aligned ebp
- pop esp ; esp <- original ebp
- pop ebp
- ret
-
-; --------------------------------------------------------------------------
-;
-; 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);
-;
-
-%define max_v_samp(b) (b)+8 ; int max_v_samp_factor
-%define output_width(b) (b)+12 ; JDIMENSION output_width
-%define input_data(b) (b)+16 ; JSAMPARRAY input_data
-%define output_data_ptr(b) (b)+20 ; JSAMPARRAY * output_data_ptr
-
- align 16
- global EXTN(jsimd_h2v1_upsample_sse2) PRIVATE
-
-EXTN(jsimd_h2v1_upsample_sse2):
- push ebp
- mov ebp,esp
-; push ebx ; unused
-; push ecx ; need not be preserved
-; push edx ; need not be preserved
- push esi
- push edi
-
- mov edx, JDIMENSION [output_width(ebp)]
- add edx, byte (2*SIZEOF_XMMWORD)-1
- and edx, byte -(2*SIZEOF_XMMWORD)
- jz short .return
-
- mov ecx, INT [max_v_samp(ebp)] ; rowctr
- test ecx,ecx
- jz short .return
-
- mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
- mov edi, POINTER [output_data_ptr(ebp)]
- mov edi, JSAMPARRAY [edi] ; output_data
- alignx 16,7
-.rowloop:
- push edi
- push esi
-
- mov esi, JSAMPROW [esi] ; inptr
- mov edi, JSAMPROW [edi] ; outptr
- mov eax,edx ; colctr
- alignx 16,7
-.columnloop:
-
- movdqa xmm0, XMMWORD [esi+0*SIZEOF_XMMWORD]
-
- movdqa xmm1,xmm0
- punpcklbw xmm0,xmm0
- punpckhbw xmm1,xmm1
-
- movdqa XMMWORD [edi+0*SIZEOF_XMMWORD], xmm0
- movdqa XMMWORD [edi+1*SIZEOF_XMMWORD], xmm1
-
- sub eax, byte 2*SIZEOF_XMMWORD
- jz short .nextrow
-
- movdqa xmm2, XMMWORD [esi+1*SIZEOF_XMMWORD]
-
- movdqa xmm3,xmm2
- punpcklbw xmm2,xmm2
- punpckhbw xmm3,xmm3
-
- movdqa XMMWORD [edi+2*SIZEOF_XMMWORD], xmm2
- movdqa XMMWORD [edi+3*SIZEOF_XMMWORD], xmm3
-
- sub eax, byte 2*SIZEOF_XMMWORD
- jz short .nextrow
-
- add esi, byte 2*SIZEOF_XMMWORD ; inptr
- add edi, byte 4*SIZEOF_XMMWORD ; outptr
- jmp short .columnloop
- alignx 16,7
-
-.nextrow:
- pop esi
- pop edi
-
- add esi, byte SIZEOF_JSAMPROW ; input_data
- add edi, byte SIZEOF_JSAMPROW ; output_data
- dec ecx ; rowctr
- jg short .rowloop
-
-.return:
- pop edi
- pop esi
-; pop edx ; need not be preserved
-; pop ecx ; need not be preserved
-; pop ebx ; unused
- pop ebp
- 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);
-;
-
-%define max_v_samp(b) (b)+8 ; int max_v_samp_factor
-%define output_width(b) (b)+12 ; JDIMENSION output_width
-%define input_data(b) (b)+16 ; JSAMPARRAY input_data
-%define output_data_ptr(b) (b)+20 ; JSAMPARRAY * output_data_ptr
-
- align 16
- global EXTN(jsimd_h2v2_upsample_sse2) PRIVATE
-
-EXTN(jsimd_h2v2_upsample_sse2):
- push ebp
- mov ebp,esp
- push ebx
-; push ecx ; need not be preserved
-; push edx ; need not be preserved
- push esi
- push edi
-
- mov edx, JDIMENSION [output_width(ebp)]
- add edx, byte (2*SIZEOF_XMMWORD)-1
- and edx, byte -(2*SIZEOF_XMMWORD)
- jz near .return
-
- mov ecx, INT [max_v_samp(ebp)] ; rowctr
- test ecx,ecx
- jz near .return
-
- mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
- mov edi, POINTER [output_data_ptr(ebp)]
- mov edi, JSAMPARRAY [edi] ; output_data
- alignx 16,7
-.rowloop:
- push edi
- push esi
-
- mov esi, JSAMPROW [esi] ; inptr
- mov ebx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] ; outptr0
- mov edi, JSAMPROW [edi+1*SIZEOF_JSAMPROW] ; outptr1
- mov eax,edx ; colctr
- alignx 16,7
-.columnloop:
-
- movdqa xmm0, XMMWORD [esi+0*SIZEOF_XMMWORD]
-
- movdqa xmm1,xmm0
- punpcklbw xmm0,xmm0
- punpckhbw xmm1,xmm1
-
- movdqa XMMWORD [ebx+0*SIZEOF_XMMWORD], xmm0
- movdqa XMMWORD [ebx+1*SIZEOF_XMMWORD], xmm1
- movdqa XMMWORD [edi+0*SIZEOF_XMMWORD], xmm0
- movdqa XMMWORD [edi+1*SIZEOF_XMMWORD], xmm1
-
- sub eax, byte 2*SIZEOF_XMMWORD
- jz short .nextrow
-
- movdqa xmm2, XMMWORD [esi+1*SIZEOF_XMMWORD]
-
- movdqa xmm3,xmm2
- punpcklbw xmm2,xmm2
- punpckhbw xmm3,xmm3
-
- movdqa XMMWORD [ebx+2*SIZEOF_XMMWORD], xmm2
- movdqa XMMWORD [ebx+3*SIZEOF_XMMWORD], xmm3
- movdqa XMMWORD [edi+2*SIZEOF_XMMWORD], xmm2
- movdqa XMMWORD [edi+3*SIZEOF_XMMWORD], xmm3
-
- sub eax, byte 2*SIZEOF_XMMWORD
- jz short .nextrow
-
- add esi, byte 2*SIZEOF_XMMWORD ; inptr
- add ebx, byte 4*SIZEOF_XMMWORD ; outptr0
- add edi, byte 4*SIZEOF_XMMWORD ; outptr1
- jmp short .columnloop
- alignx 16,7
-
-.nextrow:
- pop esi
- pop edi
-
- add esi, byte 1*SIZEOF_JSAMPROW ; input_data
- add edi, byte 2*SIZEOF_JSAMPROW ; output_data
- sub ecx, byte 2 ; rowctr
- jg short .rowloop
-
-.return:
- pop edi
- pop esi
-; pop edx ; need not be preserved
-; pop ecx ; need not be preserved
- pop ebx
- pop ebp
- ret
-
-; For some reason, the OS X linker does not honor the request to align the
-; segment unless we do this.
- align 16
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