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gecko-dev/media/libjpeg/simd/ji3dnflt.asm
Bobby Holley 2d0b90011e Bug 584894 - Move libjpeg to media/libjpeg. r=khuey 
--HG--
rename : jpeg/MOZCHANGES => media/libjpeg/MOZCHANGES
rename : jpeg/Makefile.in => media/libjpeg/Makefile.in
rename : jpeg/README => media/libjpeg/README
rename : jpeg/README-turbo.txt => media/libjpeg/README-turbo.txt
rename : jpeg/cderror.h => media/libjpeg/cderror.h
rename : jpeg/cdjpeg.h => media/libjpeg/cdjpeg.h
rename : jpeg/jaricom.c => media/libjpeg/jaricom.c
rename : jpeg/jcapimin.c => media/libjpeg/jcapimin.c
rename : jpeg/jcapistd.c => media/libjpeg/jcapistd.c
rename : jpeg/jcarith.c => media/libjpeg/jcarith.c
rename : jpeg/jccoefct.c => media/libjpeg/jccoefct.c
rename : jpeg/jccolor.c => media/libjpeg/jccolor.c
rename : jpeg/jcdctmgr.c => media/libjpeg/jcdctmgr.c
rename : jpeg/jchuff.c => media/libjpeg/jchuff.c
rename : jpeg/jchuff.h => media/libjpeg/jchuff.h
rename : jpeg/jcinit.c => media/libjpeg/jcinit.c
rename : jpeg/jcmainct.c => media/libjpeg/jcmainct.c
rename : jpeg/jcmarker.c => media/libjpeg/jcmarker.c
rename : jpeg/jcmaster.c => media/libjpeg/jcmaster.c
rename : jpeg/jcomapi.c => media/libjpeg/jcomapi.c
rename : jpeg/jconfig.h => media/libjpeg/jconfig.h
rename : jpeg/jconfig.h.in => media/libjpeg/jconfig.h.in
rename : jpeg/jcparam.c => media/libjpeg/jcparam.c
rename : jpeg/jcphuff.c => media/libjpeg/jcphuff.c
rename : jpeg/jcprepct.c => media/libjpeg/jcprepct.c
rename : jpeg/jcsample.c => media/libjpeg/jcsample.c
rename : jpeg/jdapimin.c => media/libjpeg/jdapimin.c
rename : jpeg/jdapistd.c => media/libjpeg/jdapistd.c
rename : jpeg/jdarith.c => media/libjpeg/jdarith.c
rename : jpeg/jdatadst.c => media/libjpeg/jdatadst.c
rename : jpeg/jdatasrc.c => media/libjpeg/jdatasrc.c
rename : jpeg/jdcoefct.c => media/libjpeg/jdcoefct.c
rename : jpeg/jdcolor.c => media/libjpeg/jdcolor.c
rename : jpeg/jdct.h => media/libjpeg/jdct.h
rename : jpeg/jddctmgr.c => media/libjpeg/jddctmgr.c
rename : jpeg/jdhuff.c => media/libjpeg/jdhuff.c
rename : jpeg/jdhuff.h => media/libjpeg/jdhuff.h
rename : jpeg/jdinput.c => media/libjpeg/jdinput.c
rename : jpeg/jdmainct.c => media/libjpeg/jdmainct.c
rename : jpeg/jdmarker.c => media/libjpeg/jdmarker.c
rename : jpeg/jdmaster.c => media/libjpeg/jdmaster.c
rename : jpeg/jdmerge.c => media/libjpeg/jdmerge.c
rename : jpeg/jdphuff.c => media/libjpeg/jdphuff.c
rename : jpeg/jdpostct.c => media/libjpeg/jdpostct.c
rename : jpeg/jdsample.c => media/libjpeg/jdsample.c
rename : jpeg/jdtrans.c => media/libjpeg/jdtrans.c
rename : jpeg/jerror.c => media/libjpeg/jerror.c
rename : jpeg/jerror.h => media/libjpeg/jerror.h
rename : jpeg/jfdctflt.c => media/libjpeg/jfdctflt.c
rename : jpeg/jfdctfst.c => media/libjpeg/jfdctfst.c
rename : jpeg/jfdctint.c => media/libjpeg/jfdctint.c
rename : jpeg/jidctflt.c => media/libjpeg/jidctflt.c
rename : jpeg/jidctfst.c => media/libjpeg/jidctfst.c
rename : jpeg/jidctint.c => media/libjpeg/jidctint.c
rename : jpeg/jidctred.c => media/libjpeg/jidctred.c
rename : jpeg/jinclude.h => media/libjpeg/jinclude.h
rename : jpeg/jmemmgr.c => media/libjpeg/jmemmgr.c
rename : jpeg/jmemnobs.c => media/libjpeg/jmemnobs.c
rename : jpeg/jmemsys.h => media/libjpeg/jmemsys.h
rename : jpeg/jmorecfg.h => media/libjpeg/jmorecfg.h
rename : jpeg/jpegcomp.h => media/libjpeg/jpegcomp.h
rename : jpeg/jpegint.h => media/libjpeg/jpegint.h
rename : jpeg/jpeglib.h => media/libjpeg/jpeglib.h
rename : jpeg/jquant1.c => media/libjpeg/jquant1.c
rename : jpeg/jquant2.c => media/libjpeg/jquant2.c
rename : jpeg/jsimd.h => media/libjpeg/jsimd.h
rename : jpeg/jsimd_none.c => media/libjpeg/jsimd_none.c
rename : jpeg/jsimddct.h => media/libjpeg/jsimddct.h
rename : jpeg/jutils.c => media/libjpeg/jutils.c
rename : jpeg/jversion.h => media/libjpeg/jversion.h
rename : jpeg/simd/Makefile.in => media/libjpeg/simd/Makefile.in
rename : jpeg/simd/jcclrmmx.asm => media/libjpeg/simd/jcclrmmx.asm
rename : jpeg/simd/jcclrss2-64.asm => media/libjpeg/simd/jcclrss2-64.asm
rename : jpeg/simd/jcclrss2.asm => media/libjpeg/simd/jcclrss2.asm
rename : jpeg/simd/jccolmmx.asm => media/libjpeg/simd/jccolmmx.asm
rename : jpeg/simd/jccolss2-64.asm => media/libjpeg/simd/jccolss2-64.asm
rename : jpeg/simd/jccolss2.asm => media/libjpeg/simd/jccolss2.asm
rename : jpeg/simd/jcolsamp.inc => media/libjpeg/simd/jcolsamp.inc
rename : jpeg/simd/jcqnt3dn.asm => media/libjpeg/simd/jcqnt3dn.asm
rename : jpeg/simd/jcqntmmx.asm => media/libjpeg/simd/jcqntmmx.asm
rename : jpeg/simd/jcqnts2f-64.asm => media/libjpeg/simd/jcqnts2f-64.asm
rename : jpeg/simd/jcqnts2f.asm => media/libjpeg/simd/jcqnts2f.asm
rename : jpeg/simd/jcqnts2i-64.asm => media/libjpeg/simd/jcqnts2i-64.asm
rename : jpeg/simd/jcqnts2i.asm => media/libjpeg/simd/jcqnts2i.asm
rename : jpeg/simd/jcqntsse.asm => media/libjpeg/simd/jcqntsse.asm
rename : jpeg/simd/jcsammmx.asm => media/libjpeg/simd/jcsammmx.asm
rename : jpeg/simd/jcsamss2-64.asm => media/libjpeg/simd/jcsamss2-64.asm
rename : jpeg/simd/jcsamss2.asm => media/libjpeg/simd/jcsamss2.asm
rename : jpeg/simd/jdclrmmx.asm => media/libjpeg/simd/jdclrmmx.asm
rename : jpeg/simd/jdclrss2-64.asm => media/libjpeg/simd/jdclrss2-64.asm
rename : jpeg/simd/jdclrss2.asm => media/libjpeg/simd/jdclrss2.asm
rename : jpeg/simd/jdcolmmx.asm => media/libjpeg/simd/jdcolmmx.asm
rename : jpeg/simd/jdcolss2-64.asm => media/libjpeg/simd/jdcolss2-64.asm
rename : jpeg/simd/jdcolss2.asm => media/libjpeg/simd/jdcolss2.asm
rename : jpeg/simd/jdct.inc => media/libjpeg/simd/jdct.inc
rename : jpeg/simd/jdmermmx.asm => media/libjpeg/simd/jdmermmx.asm
rename : jpeg/simd/jdmerss2-64.asm => media/libjpeg/simd/jdmerss2-64.asm
rename : jpeg/simd/jdmerss2.asm => media/libjpeg/simd/jdmerss2.asm
rename : jpeg/simd/jdmrgmmx.asm => media/libjpeg/simd/jdmrgmmx.asm
rename : jpeg/simd/jdmrgss2-64.asm => media/libjpeg/simd/jdmrgss2-64.asm
rename : jpeg/simd/jdmrgss2.asm => media/libjpeg/simd/jdmrgss2.asm
rename : jpeg/simd/jdsammmx.asm => media/libjpeg/simd/jdsammmx.asm
rename : jpeg/simd/jdsamss2-64.asm => media/libjpeg/simd/jdsamss2-64.asm
rename : jpeg/simd/jdsamss2.asm => media/libjpeg/simd/jdsamss2.asm
rename : jpeg/simd/jf3dnflt.asm => media/libjpeg/simd/jf3dnflt.asm
rename : jpeg/simd/jfmmxfst.asm => media/libjpeg/simd/jfmmxfst.asm
rename : jpeg/simd/jfmmxint.asm => media/libjpeg/simd/jfmmxint.asm
rename : jpeg/simd/jfss2fst-64.asm => media/libjpeg/simd/jfss2fst-64.asm
rename : jpeg/simd/jfss2fst.asm => media/libjpeg/simd/jfss2fst.asm
rename : jpeg/simd/jfss2int-64.asm => media/libjpeg/simd/jfss2int-64.asm
rename : jpeg/simd/jfss2int.asm => media/libjpeg/simd/jfss2int.asm
rename : jpeg/simd/jfsseflt-64.asm => media/libjpeg/simd/jfsseflt-64.asm
rename : jpeg/simd/jfsseflt.asm => media/libjpeg/simd/jfsseflt.asm
rename : jpeg/simd/ji3dnflt.asm => media/libjpeg/simd/ji3dnflt.asm
rename : jpeg/simd/jimmxfst.asm => media/libjpeg/simd/jimmxfst.asm
rename : jpeg/simd/jimmxint.asm => media/libjpeg/simd/jimmxint.asm
rename : jpeg/simd/jimmxred.asm => media/libjpeg/simd/jimmxred.asm
rename : jpeg/simd/jiss2flt-64.asm => media/libjpeg/simd/jiss2flt-64.asm
rename : jpeg/simd/jiss2flt.asm => media/libjpeg/simd/jiss2flt.asm
rename : jpeg/simd/jiss2fst-64.asm => media/libjpeg/simd/jiss2fst-64.asm
rename : jpeg/simd/jiss2fst.asm => media/libjpeg/simd/jiss2fst.asm
rename : jpeg/simd/jiss2int-64.asm => media/libjpeg/simd/jiss2int-64.asm
rename : jpeg/simd/jiss2int.asm => media/libjpeg/simd/jiss2int.asm
rename : jpeg/simd/jiss2red-64.asm => media/libjpeg/simd/jiss2red-64.asm
rename : jpeg/simd/jiss2red.asm => media/libjpeg/simd/jiss2red.asm
rename : jpeg/simd/jisseflt.asm => media/libjpeg/simd/jisseflt.asm
rename : jpeg/simd/jsimd.h => media/libjpeg/simd/jsimd.h
rename : jpeg/simd/jsimd_i386.c => media/libjpeg/simd/jsimd_i386.c
rename : jpeg/simd/jsimd_x86_64.c => media/libjpeg/simd/jsimd_x86_64.c
rename : jpeg/simd/jsimdcfg.inc => media/libjpeg/simd/jsimdcfg.inc
rename : jpeg/simd/jsimdcfg.inc.h => media/libjpeg/simd/jsimdcfg.inc.h
rename : jpeg/simd/jsimdcpu.asm => media/libjpeg/simd/jsimdcpu.asm
rename : jpeg/simd/jsimdext.inc => media/libjpeg/simd/jsimdext.inc
rename : jpeg/transupp.h => media/libjpeg/transupp.h
2011-10-17 21:25:53 -07:00

453 lines
13 KiB
NASM
Raw Blame History

;
; 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
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