kc3-lang/libjpeg-turbo/simd/x86_64/jfdctflt-sse.asm
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Hash : 9a51a87a
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Date : 2019-10-17T11:21:32
x86 SIMD: Remove obsolete [TAB8] comments With apologies to Richard Hendricks, our assembly code no longer uses tabs.
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simd/x86_64/jfdctflt-sse.asm
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; ; jfdctflt.asm - floating-point FDCT (64-bit SSE) ; ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB ; Copyright (C) 2009, 2016, 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 ; ; This file contains a floating-point implementation of the forward DCT ; (Discrete Cosine Transform). The following code is based directly on ; the IJG's original jfdctflt.c; see the jfdctflt.c for more details. %include "jsimdext.inc" %include "jdct.inc" ; -------------------------------------------------------------------------- %macro unpcklps2 2 ; %1=(0 1 2 3) / %2=(4 5 6 7) => %1=(0 1 4 5) shufps %1, %2, 0x44 %endmacro %macro unpckhps2 2 ; %1=(0 1 2 3) / %2=(4 5 6 7) => %1=(2 3 6 7) shufps %1, %2, 0xEE %endmacro ; -------------------------------------------------------------------------- SECTION SEG_CONST alignz 32 GLOBAL_DATA(jconst_fdct_float_sse) EXTN(jconst_fdct_float_sse): PD_0_382 times 4 dd 0.382683432365089771728460 PD_0_707 times 4 dd 0.707106781186547524400844 PD_0_541 times 4 dd 0.541196100146196984399723 PD_1_306 times 4 dd 1.306562964876376527856643 alignz 32 ; -------------------------------------------------------------------------- SECTION SEG_TEXT BITS 64 ; ; Perform the forward DCT on one block of samples. ; ; GLOBAL(void) ; jsimd_fdct_float_sse(FAST_FLOAT *data) ; ; r10 = FAST_FLOAT *data %define wk(i) rbp - (WK_NUM - (i)) * SIZEOF_XMMWORD ; xmmword wk[WK_NUM] %define WK_NUM 2 align 32 GLOBAL_FUNCTION(jsimd_fdct_float_sse) EXTN(jsimd_fdct_float_sse): 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 1 ; ---- Pass 1: process rows. mov rdx, r10 ; (FAST_FLOAT *) mov rcx, DCTSIZE/4 .rowloop: movaps xmm0, XMMWORD [XMMBLOCK(2,0,rdx,SIZEOF_FAST_FLOAT)] movaps xmm1, XMMWORD [XMMBLOCK(3,0,rdx,SIZEOF_FAST_FLOAT)] movaps xmm2, XMMWORD [XMMBLOCK(2,1,rdx,SIZEOF_FAST_FLOAT)] movaps xmm3, XMMWORD [XMMBLOCK(3,1,rdx,SIZEOF_FAST_FLOAT)] ; xmm0=(20 21 22 23), xmm2=(24 25 26 27) ; xmm1=(30 31 32 33), xmm3=(34 35 36 37) movaps xmm4, xmm0 ; transpose coefficients(phase 1) unpcklps xmm0, xmm1 ; xmm0=(20 30 21 31) unpckhps xmm4, xmm1 ; xmm4=(22 32 23 33) movaps xmm5, xmm2 ; transpose coefficients(phase 1) unpcklps xmm2, xmm3 ; xmm2=(24 34 25 35) unpckhps xmm5, xmm3 ; xmm5=(26 36 27 37) movaps xmm6, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_FAST_FLOAT)] movaps xmm7, XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_FAST_FLOAT)] movaps xmm1, XMMWORD [XMMBLOCK(0,1,rdx,SIZEOF_FAST_FLOAT)] movaps xmm3, XMMWORD [XMMBLOCK(1,1,rdx,SIZEOF_FAST_FLOAT)] ; xmm6=(00 01 02 03), xmm1=(04 05 06 07) ; xmm7=(10 11 12 13), xmm3=(14 15 16 17) movaps XMMWORD [wk(0)], xmm4 ; wk(0)=(22 32 23 33) movaps XMMWORD [wk(1)], xmm2 ; wk(1)=(24 34 25 35) movaps xmm4, xmm6 ; transpose coefficients(phase 1) unpcklps xmm6, xmm7 ; xmm6=(00 10 01 11) unpckhps xmm4, xmm7 ; xmm4=(02 12 03 13) movaps xmm2, xmm1 ; transpose coefficients(phase 1) unpcklps xmm1, xmm3 ; xmm1=(04 14 05 15) unpckhps xmm2, xmm3 ; xmm2=(06 16 07 17) movaps xmm7, xmm6 ; transpose coefficients(phase 2) unpcklps2 xmm6, xmm0 ; xmm6=(00 10 20 30)=data0 unpckhps2 xmm7, xmm0 ; xmm7=(01 11 21 31)=data1 movaps xmm3, xmm2 ; transpose coefficients(phase 2) unpcklps2 xmm2, xmm5 ; xmm2=(06 16 26 36)=data6 unpckhps2 xmm3, xmm5 ; xmm3=(07 17 27 37)=data7 movaps xmm0, xmm7 movaps xmm5, xmm6 subps xmm7, xmm2 ; xmm7=data1-data6=tmp6 subps xmm6, xmm3 ; xmm6=data0-data7=tmp7 addps xmm0, xmm2 ; xmm0=data1+data6=tmp1 addps xmm5, xmm3 ; xmm5=data0+data7=tmp0 movaps xmm2, XMMWORD [wk(0)] ; xmm2=(22 32 23 33) movaps xmm3, XMMWORD [wk(1)] ; xmm3=(24 34 25 35) movaps XMMWORD [wk(0)], xmm7 ; wk(0)=tmp6 movaps XMMWORD [wk(1)], xmm6 ; wk(1)=tmp7 movaps xmm7, xmm4 ; transpose coefficients(phase 2) unpcklps2 xmm4, xmm2 ; xmm4=(02 12 22 32)=data2 unpckhps2 xmm7, xmm2 ; xmm7=(03 13 23 33)=data3 movaps xmm6, xmm1 ; transpose coefficients(phase 2) unpcklps2 xmm1, xmm3 ; xmm1=(04 14 24 34)=data4 unpckhps2 xmm6, xmm3 ; xmm6=(05 15 25 35)=data5 movaps xmm2, xmm7 movaps xmm3, xmm4 addps xmm7, xmm1 ; xmm7=data3+data4=tmp3 addps xmm4, xmm6 ; xmm4=data2+data5=tmp2 subps xmm2, xmm1 ; xmm2=data3-data4=tmp4 subps xmm3, xmm6 ; xmm3=data2-data5=tmp5 ; -- Even part movaps xmm1, xmm5 movaps xmm6, xmm0 subps xmm5, xmm7 ; xmm5=tmp13 subps xmm0, xmm4 ; xmm0=tmp12 addps xmm1, xmm7 ; xmm1=tmp10 addps xmm6, xmm4 ; xmm6=tmp11 addps xmm0, xmm5 mulps xmm0, [rel PD_0_707] ; xmm0=z1 movaps xmm7, xmm1 movaps xmm4, xmm5 subps xmm1, xmm6 ; xmm1=data4 subps xmm5, xmm0 ; xmm5=data6 addps xmm7, xmm6 ; xmm7=data0 addps xmm4, xmm0 ; xmm4=data2 movaps XMMWORD [XMMBLOCK(0,1,rdx,SIZEOF_FAST_FLOAT)], xmm1 movaps XMMWORD [XMMBLOCK(2,1,rdx,SIZEOF_FAST_FLOAT)], xmm5 movaps XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_FAST_FLOAT)], xmm7 movaps XMMWORD [XMMBLOCK(2,0,rdx,SIZEOF_FAST_FLOAT)], xmm4 ; -- Odd part movaps xmm6, XMMWORD [wk(0)] ; xmm6=tmp6 movaps xmm0, XMMWORD [wk(1)] ; xmm0=tmp7 addps xmm2, xmm3 ; xmm2=tmp10 addps xmm3, xmm6 ; xmm3=tmp11 addps xmm6, xmm0 ; xmm6=tmp12, xmm0=tmp7 mulps xmm3, [rel PD_0_707] ; xmm3=z3 movaps xmm1, xmm2 ; xmm1=tmp10 subps xmm2, xmm6 mulps xmm2, [rel PD_0_382] ; xmm2=z5 mulps xmm1, [rel PD_0_541] ; xmm1=MULTIPLY(tmp10,FIX_0_541196) mulps xmm6, [rel PD_1_306] ; xmm6=MULTIPLY(tmp12,FIX_1_306562) addps xmm1, xmm2 ; xmm1=z2 addps xmm6, xmm2 ; xmm6=z4 movaps xmm5, xmm0 subps xmm0, xmm3 ; xmm0=z13 addps xmm5, xmm3 ; xmm5=z11 movaps xmm7, xmm0 movaps xmm4, xmm5 subps xmm0, xmm1 ; xmm0=data3 subps xmm5, xmm6 ; xmm5=data7 addps xmm7, xmm1 ; xmm7=data5 addps xmm4, xmm6 ; xmm4=data1 movaps XMMWORD [XMMBLOCK(3,0,rdx,SIZEOF_FAST_FLOAT)], xmm0 movaps XMMWORD [XMMBLOCK(3,1,rdx,SIZEOF_FAST_FLOAT)], xmm5 movaps XMMWORD [XMMBLOCK(1,1,rdx,SIZEOF_FAST_FLOAT)], xmm7 movaps XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_FAST_FLOAT)], xmm4 add rdx, 4*DCTSIZE*SIZEOF_FAST_FLOAT dec rcx jnz near .rowloop ; ---- Pass 2: process columns. mov rdx, r10 ; (FAST_FLOAT *) mov rcx, DCTSIZE/4 .columnloop: movaps xmm0, XMMWORD [XMMBLOCK(2,0,rdx,SIZEOF_FAST_FLOAT)] movaps xmm1, XMMWORD [XMMBLOCK(3,0,rdx,SIZEOF_FAST_FLOAT)] movaps xmm2, XMMWORD [XMMBLOCK(6,0,rdx,SIZEOF_FAST_FLOAT)] movaps xmm3, XMMWORD [XMMBLOCK(7,0,rdx,SIZEOF_FAST_FLOAT)] ; xmm0=(02 12 22 32), xmm2=(42 52 62 72) ; xmm1=(03 13 23 33), xmm3=(43 53 63 73) movaps xmm4, xmm0 ; transpose coefficients(phase 1) unpcklps xmm0, xmm1 ; xmm0=(02 03 12 13) unpckhps xmm4, xmm1 ; xmm4=(22 23 32 33) movaps xmm5, xmm2 ; transpose coefficients(phase 1) unpcklps xmm2, xmm3 ; xmm2=(42 43 52 53) unpckhps xmm5, xmm3 ; xmm5=(62 63 72 73) movaps xmm6, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_FAST_FLOAT)] movaps xmm7, XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_FAST_FLOAT)] movaps xmm1, XMMWORD [XMMBLOCK(4,0,rdx,SIZEOF_FAST_FLOAT)] movaps xmm3, XMMWORD [XMMBLOCK(5,0,rdx,SIZEOF_FAST_FLOAT)] ; xmm6=(00 10 20 30), xmm1=(40 50 60 70) ; xmm7=(01 11 21 31), xmm3=(41 51 61 71) movaps XMMWORD [wk(0)], xmm4 ; wk(0)=(22 23 32 33) movaps XMMWORD [wk(1)], xmm2 ; wk(1)=(42 43 52 53) movaps xmm4, xmm6 ; transpose coefficients(phase 1) unpcklps xmm6, xmm7 ; xmm6=(00 01 10 11) unpckhps xmm4, xmm7 ; xmm4=(20 21 30 31) movaps xmm2, xmm1 ; transpose coefficients(phase 1) unpcklps xmm1, xmm3 ; xmm1=(40 41 50 51) unpckhps xmm2, xmm3 ; xmm2=(60 61 70 71) movaps xmm7, xmm6 ; transpose coefficients(phase 2) unpcklps2 xmm6, xmm0 ; xmm6=(00 01 02 03)=data0 unpckhps2 xmm7, xmm0 ; xmm7=(10 11 12 13)=data1 movaps xmm3, xmm2 ; transpose coefficients(phase 2) unpcklps2 xmm2, xmm5 ; xmm2=(60 61 62 63)=data6 unpckhps2 xmm3, xmm5 ; xmm3=(70 71 72 73)=data7 movaps xmm0, xmm7 movaps xmm5, xmm6 subps xmm7, xmm2 ; xmm7=data1-data6=tmp6 subps xmm6, xmm3 ; xmm6=data0-data7=tmp7 addps xmm0, xmm2 ; xmm0=data1+data6=tmp1 addps xmm5, xmm3 ; xmm5=data0+data7=tmp0 movaps xmm2, XMMWORD [wk(0)] ; xmm2=(22 23 32 33) movaps xmm3, XMMWORD [wk(1)] ; xmm3=(42 43 52 53) movaps XMMWORD [wk(0)], xmm7 ; wk(0)=tmp6 movaps XMMWORD [wk(1)], xmm6 ; wk(1)=tmp7 movaps xmm7, xmm4 ; transpose coefficients(phase 2) unpcklps2 xmm4, xmm2 ; xmm4=(20 21 22 23)=data2 unpckhps2 xmm7, xmm2 ; xmm7=(30 31 32 33)=data3 movaps xmm6, xmm1 ; transpose coefficients(phase 2) unpcklps2 xmm1, xmm3 ; xmm1=(40 41 42 43)=data4 unpckhps2 xmm6, xmm3 ; xmm6=(50 51 52 53)=data5 movaps xmm2, xmm7 movaps xmm3, xmm4 addps xmm7, xmm1 ; xmm7=data3+data4=tmp3 addps xmm4, xmm6 ; xmm4=data2+data5=tmp2 subps xmm2, xmm1 ; xmm2=data3-data4=tmp4 subps xmm3, xmm6 ; xmm3=data2-data5=tmp5 ; -- Even part movaps xmm1, xmm5 movaps xmm6, xmm0 subps xmm5, xmm7 ; xmm5=tmp13 subps xmm0, xmm4 ; xmm0=tmp12 addps xmm1, xmm7 ; xmm1=tmp10 addps xmm6, xmm4 ; xmm6=tmp11 addps xmm0, xmm5 mulps xmm0, [rel PD_0_707] ; xmm0=z1 movaps xmm7, xmm1 movaps xmm4, xmm5 subps xmm1, xmm6 ; xmm1=data4 subps xmm5, xmm0 ; xmm5=data6 addps xmm7, xmm6 ; xmm7=data0 addps xmm4, xmm0 ; xmm4=data2 movaps XMMWORD [XMMBLOCK(4,0,rdx,SIZEOF_FAST_FLOAT)], xmm1 movaps XMMWORD [XMMBLOCK(6,0,rdx,SIZEOF_FAST_FLOAT)], xmm5 movaps XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_FAST_FLOAT)], xmm7 movaps XMMWORD [XMMBLOCK(2,0,rdx,SIZEOF_FAST_FLOAT)], xmm4 ; -- Odd part movaps xmm6, XMMWORD [wk(0)] ; xmm6=tmp6 movaps xmm0, XMMWORD [wk(1)] ; xmm0=tmp7 addps xmm2, xmm3 ; xmm2=tmp10 addps xmm3, xmm6 ; xmm3=tmp11 addps xmm6, xmm0 ; xmm6=tmp12, xmm0=tmp7 mulps xmm3, [rel PD_0_707] ; xmm3=z3 movaps xmm1, xmm2 ; xmm1=tmp10 subps xmm2, xmm6 mulps xmm2, [rel PD_0_382] ; xmm2=z5 mulps xmm1, [rel PD_0_541] ; xmm1=MULTIPLY(tmp10,FIX_0_541196) mulps xmm6, [rel PD_1_306] ; xmm6=MULTIPLY(tmp12,FIX_1_306562) addps xmm1, xmm2 ; xmm1=z2 addps xmm6, xmm2 ; xmm6=z4 movaps xmm5, xmm0 subps xmm0, xmm3 ; xmm0=z13 addps xmm5, xmm3 ; xmm5=z11 movaps xmm7, xmm0 movaps xmm4, xmm5 subps xmm0, xmm1 ; xmm0=data3 subps xmm5, xmm6 ; xmm5=data7 addps xmm7, xmm1 ; xmm7=data5 addps xmm4, xmm6 ; xmm4=data1 movaps XMMWORD [XMMBLOCK(3,0,rdx,SIZEOF_FAST_FLOAT)], xmm0 movaps XMMWORD [XMMBLOCK(7,0,rdx,SIZEOF_FAST_FLOAT)], xmm5 movaps XMMWORD [XMMBLOCK(5,0,rdx,SIZEOF_FAST_FLOAT)], xmm7 movaps XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_FAST_FLOAT)], xmm4 add rdx, byte 4*SIZEOF_FAST_FLOAT dec rcx jnz near .columnloop uncollect_args 1 mov rsp, rbp ; rsp <- aligned rbp pop rsp ; rsp <- original rbp 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