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Diffstat (limited to 'media/libjpeg/simd/jdsample-sse2-64.asm')
-rw-r--r-- | media/libjpeg/simd/jdsample-sse2-64.asm | 670 |
1 files changed, 0 insertions, 670 deletions
diff --git a/media/libjpeg/simd/jdsample-sse2-64.asm b/media/libjpeg/simd/jdsample-sse2-64.asm deleted file mode 100644 index 1faaed648a..0000000000 --- a/media/libjpeg/simd/jdsample-sse2-64.asm +++ /dev/null @@ -1,670 +0,0 @@ -; -; jdsample.asm - upsampling (64-bit SSE2) -; -; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB -; Copyright (C) 2009, D. R. Commander. -; -; 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 -; -; [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 |