kc3-lang/libjpeg-turbo/simd/ji3dnflt.asm
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Hash : b7753510
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Date : 2014-05-11T09:36:25
Convert tabs to spaces in the libjpeg code and the SIMD code (TurboJPEG retains the use of tabs for historical reasons. They were annoying in the libjpeg code primarily because they were not consistently used and because they were used to format as well as indent the code. In the case of TurboJPEG, tabs are used just to indent the code, so even if the editor assumes a different tab width, the code will still be readable.) git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1285 632fc199-4ca6-4c93-a231-07263d6284db
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simd/ji3dnflt.asm
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; ; ji3dnflt.asm - floating-point IDCT (3DNow! & MMX) ; ; 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 ; ; This file contains a floating-point implementation of the inverse DCT ; (Discrete Cosine Transform). The following code is based directly on ; the IJG's original jidctflt.c; see the jidctflt.c for more details. ; ; [TAB8] %include "jsimdext.inc" %include "jdct.inc" ; -------------------------------------------------------------------------- SECTION SEG_CONST alignz 16 global EXTN(jconst_idct_float_3dnow) EXTN(jconst_idct_float_3dnow): PD_1_414 times 2 dd 1.414213562373095048801689 PD_1_847 times 2 dd 1.847759065022573512256366 PD_1_082 times 2 dd 1.082392200292393968799446 PD_2_613 times 2 dd 2.613125929752753055713286 PD_RNDINT_MAGIC times 2 dd 100663296.0 ; (float)(0x00C00000 << 3) PB_CENTERJSAMP times 8 db CENTERJSAMPLE alignz 16 ; -------------------------------------------------------------------------- SECTION SEG_TEXT BITS 32 ; ; Perform dequantization and inverse DCT on one block of coefficients. ; ; GLOBAL(void) ; jsimd_idct_float_3dnow (void * dct_table, JCOEFPTR coef_block, ; JSAMPARRAY output_buf, JDIMENSION output_col) ; %define dct_table(b) (b)+8 ; void * dct_table %define coef_block(b) (b)+12 ; JCOEFPTR coef_block %define output_buf(b) (b)+16 ; JSAMPARRAY output_buf %define output_col(b) (b)+20 ; JDIMENSION output_col %define original_ebp ebp+0 %define wk(i) ebp-(WK_NUM-(i))*SIZEOF_MMWORD ; mmword wk[WK_NUM] %define WK_NUM 2 %define workspace wk(0)-DCTSIZE2*SIZEOF_FAST_FLOAT ; FAST_FLOAT workspace[DCTSIZE2] align 16 global EXTN(jsimd_idct_float_3dnow) EXTN(jsimd_idct_float_3dnow): push ebp mov eax,esp ; eax = original ebp sub esp, byte 4 and esp, byte (-SIZEOF_MMWORD) ; align to 64 bits mov [esp],eax mov ebp,esp ; ebp = aligned ebp lea esp, [workspace] push ebx ; push ecx ; need not be preserved ; push edx ; need not be preserved push esi push edi get_GOT ebx ; get GOT address ; ---- Pass 1: process columns from input, store into work array. ; mov eax, [original_ebp] mov edx, POINTER [dct_table(eax)] ; quantptr mov esi, JCOEFPTR [coef_block(eax)] ; inptr lea edi, [workspace] ; FAST_FLOAT * wsptr mov ecx, DCTSIZE/2 ; ctr alignx 16,7 .columnloop: %ifndef NO_ZERO_COLUMN_TEST_FLOAT_3DNOW mov eax, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)] or eax, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)] jnz short .columnDCT pushpic ebx ; save GOT address mov ebx, DWORD [DWBLOCK(3,0,esi,SIZEOF_JCOEF)] mov eax, DWORD [DWBLOCK(4,0,esi,SIZEOF_JCOEF)] or ebx, DWORD [DWBLOCK(5,0,esi,SIZEOF_JCOEF)] or eax, DWORD [DWBLOCK(6,0,esi,SIZEOF_JCOEF)] or ebx, DWORD [DWBLOCK(7,0,esi,SIZEOF_JCOEF)] or eax,ebx poppic ebx ; restore GOT address jnz short .columnDCT ; -- AC terms all zero movd mm0, DWORD [DWBLOCK(0,0,esi,SIZEOF_JCOEF)] punpcklwd mm0,mm0 psrad mm0,(DWORD_BIT-WORD_BIT) pi2fd mm0,mm0 pfmul mm0, MMWORD [MMBLOCK(0,0,edx,SIZEOF_FLOAT_MULT_TYPE)] movq mm1,mm0 punpckldq mm0,mm0 punpckhdq mm1,mm1 movq MMWORD [MMBLOCK(0,0,edi,SIZEOF_FAST_FLOAT)], mm0 movq MMWORD [MMBLOCK(0,1,edi,SIZEOF_FAST_FLOAT)], mm0 movq MMWORD [MMBLOCK(0,2,edi,SIZEOF_FAST_FLOAT)], mm0 movq MMWORD [MMBLOCK(0,3,edi,SIZEOF_FAST_FLOAT)], mm0 movq MMWORD [MMBLOCK(1,0,edi,SIZEOF_FAST_FLOAT)], mm1 movq MMWORD [MMBLOCK(1,1,edi,SIZEOF_FAST_FLOAT)], mm1 movq MMWORD [MMBLOCK(1,2,edi,SIZEOF_FAST_FLOAT)], mm1 movq MMWORD [MMBLOCK(1,3,edi,SIZEOF_FAST_FLOAT)], mm1 jmp near .nextcolumn alignx 16,7 %endif .columnDCT: ; -- Even part movd mm0, DWORD [DWBLOCK(0,0,esi,SIZEOF_JCOEF)] movd mm1, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)] movd mm2, DWORD [DWBLOCK(4,0,esi,SIZEOF_JCOEF)] movd mm3, DWORD [DWBLOCK(6,0,esi,SIZEOF_JCOEF)] punpcklwd mm0,mm0 punpcklwd mm1,mm1 psrad mm0,(DWORD_BIT-WORD_BIT) psrad mm1,(DWORD_BIT-WORD_BIT) pi2fd mm0,mm0 pi2fd mm1,mm1 pfmul mm0, MMWORD [MMBLOCK(0,0,edx,SIZEOF_FLOAT_MULT_TYPE)] pfmul mm1, MMWORD [MMBLOCK(2,0,edx,SIZEOF_FLOAT_MULT_TYPE)] punpcklwd mm2,mm2 punpcklwd mm3,mm3 psrad mm2,(DWORD_BIT-WORD_BIT) psrad mm3,(DWORD_BIT-WORD_BIT) pi2fd mm2,mm2 pi2fd mm3,mm3 pfmul mm2, MMWORD [MMBLOCK(4,0,edx,SIZEOF_FLOAT_MULT_TYPE)] pfmul mm3, MMWORD [MMBLOCK(6,0,edx,SIZEOF_FLOAT_MULT_TYPE)] movq mm4,mm0 movq mm5,mm1 pfsub mm0,mm2 ; mm0=tmp11 pfsub mm1,mm3 pfadd mm4,mm2 ; mm4=tmp10 pfadd mm5,mm3 ; mm5=tmp13 pfmul mm1,[GOTOFF(ebx,PD_1_414)] pfsub mm1,mm5 ; mm1=tmp12 movq mm6,mm4 movq mm7,mm0 pfsub mm4,mm5 ; mm4=tmp3 pfsub mm0,mm1 ; mm0=tmp2 pfadd mm6,mm5 ; mm6=tmp0 pfadd mm7,mm1 ; mm7=tmp1 movq MMWORD [wk(1)], mm4 ; tmp3 movq MMWORD [wk(0)], mm0 ; tmp2 ; -- Odd part movd mm2, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)] movd mm3, DWORD [DWBLOCK(3,0,esi,SIZEOF_JCOEF)] movd mm5, DWORD [DWBLOCK(5,0,esi,SIZEOF_JCOEF)] movd mm1, DWORD [DWBLOCK(7,0,esi,SIZEOF_JCOEF)] punpcklwd mm2,mm2 punpcklwd mm3,mm3 psrad mm2,(DWORD_BIT-WORD_BIT) psrad mm3,(DWORD_BIT-WORD_BIT) pi2fd mm2,mm2 pi2fd mm3,mm3 pfmul mm2, MMWORD [MMBLOCK(1,0,edx,SIZEOF_FLOAT_MULT_TYPE)] pfmul mm3, MMWORD [MMBLOCK(3,0,edx,SIZEOF_FLOAT_MULT_TYPE)] punpcklwd mm5,mm5 punpcklwd mm1,mm1 psrad mm5,(DWORD_BIT-WORD_BIT) psrad mm1,(DWORD_BIT-WORD_BIT) pi2fd mm5,mm5 pi2fd mm1,mm1 pfmul mm5, MMWORD [MMBLOCK(5,0,edx,SIZEOF_FLOAT_MULT_TYPE)] pfmul mm1, MMWORD [MMBLOCK(7,0,edx,SIZEOF_FLOAT_MULT_TYPE)] movq mm4,mm2 movq mm0,mm5 pfadd mm2,mm1 ; mm2=z11 pfadd mm5,mm3 ; mm5=z13 pfsub mm4,mm1 ; mm4=z12 pfsub mm0,mm3 ; mm0=z10 movq mm1,mm2 pfsub mm2,mm5 pfadd mm1,mm5 ; mm1=tmp7 pfmul mm2,[GOTOFF(ebx,PD_1_414)] ; mm2=tmp11 movq mm3,mm0 pfadd mm0,mm4 pfmul mm0,[GOTOFF(ebx,PD_1_847)] ; mm0=z5 pfmul mm3,[GOTOFF(ebx,PD_2_613)] ; mm3=(z10 * 2.613125930) pfmul mm4,[GOTOFF(ebx,PD_1_082)] ; mm4=(z12 * 1.082392200) pfsubr mm3,mm0 ; mm3=tmp12 pfsub mm4,mm0 ; mm4=tmp10 ; -- Final output stage pfsub mm3,mm1 ; mm3=tmp6 movq mm5,mm6 movq mm0,mm7 pfadd mm6,mm1 ; mm6=data0=(00 01) pfadd mm7,mm3 ; mm7=data1=(10 11) pfsub mm5,mm1 ; mm5=data7=(70 71) pfsub mm0,mm3 ; mm0=data6=(60 61) pfsub mm2,mm3 ; mm2=tmp5 movq mm1,mm6 ; transpose coefficients punpckldq mm6,mm7 ; mm6=(00 10) punpckhdq mm1,mm7 ; mm1=(01 11) movq mm3,mm0 ; transpose coefficients punpckldq mm0,mm5 ; mm0=(60 70) punpckhdq mm3,mm5 ; mm3=(61 71) movq MMWORD [MMBLOCK(0,0,edi,SIZEOF_FAST_FLOAT)], mm6 movq MMWORD [MMBLOCK(1,0,edi,SIZEOF_FAST_FLOAT)], mm1 movq MMWORD [MMBLOCK(0,3,edi,SIZEOF_FAST_FLOAT)], mm0 movq MMWORD [MMBLOCK(1,3,edi,SIZEOF_FAST_FLOAT)], mm3 movq mm7, MMWORD [wk(0)] ; mm7=tmp2 movq mm5, MMWORD [wk(1)] ; mm5=tmp3 pfadd mm4,mm2 ; mm4=tmp4 movq mm6,mm7 movq mm1,mm5 pfadd mm7,mm2 ; mm7=data2=(20 21) pfadd mm5,mm4 ; mm5=data4=(40 41) pfsub mm6,mm2 ; mm6=data5=(50 51) pfsub mm1,mm4 ; mm1=data3=(30 31) movq mm0,mm7 ; transpose coefficients punpckldq mm7,mm1 ; mm7=(20 30) punpckhdq mm0,mm1 ; mm0=(21 31) movq mm3,mm5 ; transpose coefficients punpckldq mm5,mm6 ; mm5=(40 50) punpckhdq mm3,mm6 ; mm3=(41 51) movq MMWORD [MMBLOCK(0,1,edi,SIZEOF_FAST_FLOAT)], mm7 movq MMWORD [MMBLOCK(1,1,edi,SIZEOF_FAST_FLOAT)], mm0 movq MMWORD [MMBLOCK(0,2,edi,SIZEOF_FAST_FLOAT)], mm5 movq MMWORD [MMBLOCK(1,2,edi,SIZEOF_FAST_FLOAT)], mm3 .nextcolumn: add esi, byte 2*SIZEOF_JCOEF ; coef_block add edx, byte 2*SIZEOF_FLOAT_MULT_TYPE ; quantptr add edi, byte 2*DCTSIZE*SIZEOF_FAST_FLOAT ; wsptr dec ecx ; ctr jnz near .columnloop ; -- Prefetch the next coefficient block prefetch [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 0*32] prefetch [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 1*32] prefetch [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 2*32] prefetch [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 3*32] ; ---- Pass 2: process rows from work array, store into output array. mov eax, [original_ebp] lea esi, [workspace] ; FAST_FLOAT * wsptr mov edi, JSAMPARRAY [output_buf(eax)] ; (JSAMPROW *) mov eax, JDIMENSION [output_col(eax)] mov ecx, DCTSIZE/2 ; ctr alignx 16,7 .rowloop: ; -- Even part movq mm0, MMWORD [MMBLOCK(0,0,esi,SIZEOF_FAST_FLOAT)] movq mm1, MMWORD [MMBLOCK(2,0,esi,SIZEOF_FAST_FLOAT)] movq mm2, MMWORD [MMBLOCK(4,0,esi,SIZEOF_FAST_FLOAT)] movq mm3, MMWORD [MMBLOCK(6,0,esi,SIZEOF_FAST_FLOAT)] movq mm4,mm0 movq mm5,mm1 pfsub mm0,mm2 ; mm0=tmp11 pfsub mm1,mm3 pfadd mm4,mm2 ; mm4=tmp10 pfadd mm5,mm3 ; mm5=tmp13 pfmul mm1,[GOTOFF(ebx,PD_1_414)] pfsub mm1,mm5 ; mm1=tmp12 movq mm6,mm4 movq mm7,mm0 pfsub mm4,mm5 ; mm4=tmp3 pfsub mm0,mm1 ; mm0=tmp2 pfadd mm6,mm5 ; mm6=tmp0 pfadd mm7,mm1 ; mm7=tmp1 movq MMWORD [wk(1)], mm4 ; tmp3 movq MMWORD [wk(0)], mm0 ; tmp2 ; -- Odd part movq mm2, MMWORD [MMBLOCK(1,0,esi,SIZEOF_FAST_FLOAT)] movq mm3, MMWORD [MMBLOCK(3,0,esi,SIZEOF_FAST_FLOAT)] movq mm5, MMWORD [MMBLOCK(5,0,esi,SIZEOF_FAST_FLOAT)] movq mm1, MMWORD [MMBLOCK(7,0,esi,SIZEOF_FAST_FLOAT)] movq mm4,mm2 movq mm0,mm5 pfadd mm2,mm1 ; mm2=z11 pfadd mm5,mm3 ; mm5=z13 pfsub mm4,mm1 ; mm4=z12 pfsub mm0,mm3 ; mm0=z10 movq mm1,mm2 pfsub mm2,mm5 pfadd mm1,mm5 ; mm1=tmp7 pfmul mm2,[GOTOFF(ebx,PD_1_414)] ; mm2=tmp11 movq mm3,mm0 pfadd mm0,mm4 pfmul mm0,[GOTOFF(ebx,PD_1_847)] ; mm0=z5 pfmul mm3,[GOTOFF(ebx,PD_2_613)] ; mm3=(z10 * 2.613125930) pfmul mm4,[GOTOFF(ebx,PD_1_082)] ; mm4=(z12 * 1.082392200) pfsubr mm3,mm0 ; mm3=tmp12 pfsub mm4,mm0 ; mm4=tmp10 ; -- Final output stage pfsub mm3,mm1 ; mm3=tmp6 movq mm5,mm6 movq mm0,mm7 pfadd mm6,mm1 ; mm6=data0=(00 10) pfadd mm7,mm3 ; mm7=data1=(01 11) pfsub mm5,mm1 ; mm5=data7=(07 17) pfsub mm0,mm3 ; mm0=data6=(06 16) pfsub mm2,mm3 ; mm2=tmp5 movq mm1,[GOTOFF(ebx,PD_RNDINT_MAGIC)] ; mm1=[PD_RNDINT_MAGIC] pcmpeqd mm3,mm3 psrld mm3,WORD_BIT ; mm3={0xFFFF 0x0000 0xFFFF 0x0000} pfadd mm6,mm1 ; mm6=roundint(data0/8)=(00 ** 10 **) pfadd mm7,mm1 ; mm7=roundint(data1/8)=(01 ** 11 **) pfadd mm0,mm1 ; mm0=roundint(data6/8)=(06 ** 16 **) pfadd mm5,mm1 ; mm5=roundint(data7/8)=(07 ** 17 **) pand mm6,mm3 ; mm6=(00 -- 10 --) pslld mm7,WORD_BIT ; mm7=(-- 01 -- 11) pand mm0,mm3 ; mm0=(06 -- 16 --) pslld mm5,WORD_BIT ; mm5=(-- 07 -- 17) por mm6,mm7 ; mm6=(00 01 10 11) por mm0,mm5 ; mm0=(06 07 16 17) movq mm1, MMWORD [wk(0)] ; mm1=tmp2 movq mm3, MMWORD [wk(1)] ; mm3=tmp3 pfadd mm4,mm2 ; mm4=tmp4 movq mm7,mm1 movq mm5,mm3 pfadd mm1,mm2 ; mm1=data2=(02 12) pfadd mm3,mm4 ; mm3=data4=(04 14) pfsub mm7,mm2 ; mm7=data5=(05 15) pfsub mm5,mm4 ; mm5=data3=(03 13) movq mm2,[GOTOFF(ebx,PD_RNDINT_MAGIC)] ; mm2=[PD_RNDINT_MAGIC] pcmpeqd mm4,mm4 psrld mm4,WORD_BIT ; mm4={0xFFFF 0x0000 0xFFFF 0x0000} pfadd mm3,mm2 ; mm3=roundint(data4/8)=(04 ** 14 **) pfadd mm7,mm2 ; mm7=roundint(data5/8)=(05 ** 15 **) pfadd mm1,mm2 ; mm1=roundint(data2/8)=(02 ** 12 **) pfadd mm5,mm2 ; mm5=roundint(data3/8)=(03 ** 13 **) pand mm3,mm4 ; mm3=(04 -- 14 --) pslld mm7,WORD_BIT ; mm7=(-- 05 -- 15) pand mm1,mm4 ; mm1=(02 -- 12 --) pslld mm5,WORD_BIT ; mm5=(-- 03 -- 13) por mm3,mm7 ; mm3=(04 05 14 15) por mm1,mm5 ; mm1=(02 03 12 13) movq mm2,[GOTOFF(ebx,PB_CENTERJSAMP)] ; mm2=[PB_CENTERJSAMP] packsswb mm6,mm3 ; mm6=(00 01 10 11 04 05 14 15) packsswb mm1,mm0 ; mm1=(02 03 12 13 06 07 16 17) paddb mm6,mm2 paddb mm1,mm2 movq mm4,mm6 ; transpose coefficients(phase 2) punpcklwd mm6,mm1 ; mm6=(00 01 02 03 10 11 12 13) punpckhwd mm4,mm1 ; mm4=(04 05 06 07 14 15 16 17) movq mm7,mm6 ; transpose coefficients(phase 3) punpckldq mm6,mm4 ; mm6=(00 01 02 03 04 05 06 07) punpckhdq mm7,mm4 ; mm7=(10 11 12 13 14 15 16 17) pushpic ebx ; save GOT address mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] mov ebx, JSAMPROW [edi+1*SIZEOF_JSAMPROW] movq MMWORD [edx+eax*SIZEOF_JSAMPLE], mm6 movq MMWORD [ebx+eax*SIZEOF_JSAMPLE], mm7 poppic ebx ; restore GOT address add esi, byte 2*SIZEOF_FAST_FLOAT ; wsptr add edi, byte 2*SIZEOF_JSAMPROW dec ecx ; ctr jnz near .rowloop femms ; empty MMX/3DNow! state 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 ; For some reason, the OS X linker does not honor the request to align the ; segment unless we do this. align 16