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diff --git a/media/libjpeg/simd/x86_64/jdsample-sse2.asm b/media/libjpeg/simd/x86_64/jdsample-sse2.asm
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+;
+; jdsample.asm - upsampling (64-bit SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+; Copyright (C) 2009, 2016, D. R. Commander.
+; Copyright (C) 2018, Matthias Räncker.
+;
+; Based on the 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
+
+%include "jsimdext.inc"
+
+; --------------------------------------------------------------------------
+ SECTION SEG_CONST
+
+ alignz 32
+ GLOBAL_DATA(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 32
+
+; --------------------------------------------------------------------------
+ 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
+; r11d = JDIMENSION downsampled_width
+; r12 = JSAMPARRAY input_data
+; r13 = JSAMPARRAY *output_data_ptr
+
+ align 32
+ GLOBAL_FUNCTION(jsimd_h2v1_fancy_upsample_sse2)
+
+EXTN(jsimd_h2v1_fancy_upsample_sse2):
+ push rbp
+ mov rax, rsp
+ mov rbp, rsp
+ collect_args 4
+
+ 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 rdip, JSAMPARRAY [rdi] ; output_data
+.rowloop:
+ push rax ; colctr
+ push rdi
+ push rsi
+
+ mov rsip, JSAMPROW [rsi] ; inptr
+ mov rdip, 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 4
+ 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
+; r11d = 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 32
+ GLOBAL_FUNCTION(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 4
+ 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 rdip, JSAMPARRAY [rdi] ; output_data
+.rowloop:
+ push rax ; colctr
+ push rcx
+ push rdi
+ push rsi
+
+ mov rcxp, JSAMPROW [rsi-1*SIZEOF_JSAMPROW] ; inptr1(above)
+ mov rbxp, JSAMPROW [rsi+0*SIZEOF_JSAMPROW] ; inptr0
+ mov rsip, JSAMPROW [rsi+1*SIZEOF_JSAMPROW] ; inptr1(below)
+ mov rdxp, JSAMPROW [rdi+0*SIZEOF_JSAMPROW] ; outptr0
+ mov rdip, 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 4
+ 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
+; r11d = JDIMENSION output_width
+; r12 = JSAMPARRAY input_data
+; r13 = JSAMPARRAY *output_data_ptr
+
+ align 32
+ GLOBAL_FUNCTION(jsimd_h2v1_upsample_sse2)
+
+EXTN(jsimd_h2v1_upsample_sse2):
+ push rbp
+ mov rax, rsp
+ mov rbp, rsp
+ collect_args 4
+
+ 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 rdip, JSAMPARRAY [rdi] ; output_data
+.rowloop:
+ push rdi
+ push rsi
+
+ mov rsip, JSAMPROW [rsi] ; inptr
+ mov rdip, 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 4
+ 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(int max_v_samp_factor, JDIMENSION output_width,
+; JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
+;
+
+; r10 = int max_v_samp_factor
+; r11d = JDIMENSION output_width
+; r12 = JSAMPARRAY input_data
+; r13 = JSAMPARRAY *output_data_ptr
+
+ align 32
+ GLOBAL_FUNCTION(jsimd_h2v2_upsample_sse2)
+
+EXTN(jsimd_h2v2_upsample_sse2):
+ push rbp
+ mov rax, rsp
+ mov rbp, rsp
+ collect_args 4
+ 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 rdip, JSAMPARRAY [rdi] ; output_data
+.rowloop:
+ push rdi
+ push rsi
+
+ mov rsip, JSAMPROW [rsi] ; inptr
+ mov rbxp, JSAMPROW [rdi+0*SIZEOF_JSAMPROW] ; outptr0
+ mov rdip, 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 4
+ pop rbp
+ ret
+
+; For some reason, the OS X linker does not honor the request to align the
+; segment unless we do this.
+ align 32
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-09 16:55:30 +0000