ryan/mozjpeg
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
b0971e47d76fdb81270e93bbf11ff5558073350d
mozjpeg/simd/jfdctflt-3dn.asm
DRC 123f7258a8 Format copyright headers more consistently 
The IJG convention is to format copyright notices as:

Copyright (C) YYYY, Owner.

We try to maintain this convention for any code that is part of the
libjpeg API library (with the exception of preserving the copyright
notices from Cendio's code verbatim, since those predate
libjpeg-turbo.)

Note that the phrase "All Rights Reserved" is no longer necessary, since
all Buenos Aires Convention signatories signed onto the Berne Convention
in 2000.  However, our convention is to retain this phrase for any files
that have a self-contained copyright header but to leave it off of any
files that refer to another file for conditions of distribution and use.
For instance, all of the non-SIMD files in the libjpeg API library refer
to README.ijg, and the copyright message in that file contains "All
Rights Reserved", so it is unnecessary to add it to the individual
files.

The TurboJPEG code retains my preferred formatting convention for
copyright notices, which is based on that of VirtualGL (where the
TurboJPEG API originated.)
2016-05-28 19:16:58 -05:00

320 lines
12 KiB
NASM
Raw Blame History

;
; jfdctflt.asm - floating-point FDCT (3DNow!)
;
; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
;
; 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.
;
; [TAB8]
%include "jsimdext.inc"
%include "jdct.inc"
; --------------------------------------------------------------------------
SECTION SEG_CONST
alignz 16
global EXTN(jconst_fdct_float_3dnow)
EXTN(jconst_fdct_float_3dnow):
PD_0_382 times 2 dd 0.382683432365089771728460
PD_0_707 times 2 dd 0.707106781186547524400844
PD_0_541 times 2 dd 0.541196100146196984399723
PD_1_306 times 2 dd 1.306562964876376527856643
alignz 16
; --------------------------------------------------------------------------
SECTION SEG_TEXT
BITS 32
;
; Perform the forward DCT on one block of samples.
;
; GLOBAL(void)
; jsimd_fdct_float_3dnow (FAST_FLOAT *data)
;
%define data(b) (b)+8 ; FAST_FLOAT *data
%define original_ebp ebp+0
%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_MMWORD ; mmword wk[WK_NUM]
%define WK_NUM 2
align 16
global EXTN(jsimd_fdct_float_3dnow)
EXTN(jsimd_fdct_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, [wk(0)]
pushpic ebx
; push ecx ; need not be preserved
; push edx ; need not be preserved
; push esi ; unused
; push edi ; unused
get_GOT ebx ; get GOT address
; ---- Pass 1: process rows.
mov edx, POINTER [data(eax)] ; (FAST_FLOAT *)
mov ecx, DCTSIZE/2
alignx 16,7
.rowloop:
movq mm0, MMWORD [MMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)]
movq mm1, MMWORD [MMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)]
movq mm2, MMWORD [MMBLOCK(0,3,edx,SIZEOF_FAST_FLOAT)]
movq mm3, MMWORD [MMBLOCK(1,3,edx,SIZEOF_FAST_FLOAT)]
; mm0=(00 01), mm1=(10 11), mm2=(06 07), mm3=(16 17)
movq mm4,mm0 ; transpose coefficients
punpckldq mm0,mm1 ; mm0=(00 10)=data0
punpckhdq mm4,mm1 ; mm4=(01 11)=data1
movq mm5,mm2 ; transpose coefficients
punpckldq mm2,mm3 ; mm2=(06 16)=data6
punpckhdq mm5,mm3 ; mm5=(07 17)=data7
movq mm6,mm4
movq mm7,mm0
pfsub mm4,mm2 ; mm4=data1-data6=tmp6
pfsub mm0,mm5 ; mm0=data0-data7=tmp7
pfadd mm6,mm2 ; mm6=data1+data6=tmp1
pfadd mm7,mm5 ; mm7=data0+data7=tmp0
movq mm1, MMWORD [MMBLOCK(0,1,edx,SIZEOF_FAST_FLOAT)]
movq mm3, MMWORD [MMBLOCK(1,1,edx,SIZEOF_FAST_FLOAT)]
movq mm2, MMWORD [MMBLOCK(0,2,edx,SIZEOF_FAST_FLOAT)]
movq mm5, MMWORD [MMBLOCK(1,2,edx,SIZEOF_FAST_FLOAT)]
; mm1=(02 03), mm3=(12 13), mm2=(04 05), mm5=(14 15)
movq MMWORD [wk(0)], mm4 ; wk(0)=tmp6
movq MMWORD [wk(1)], mm0 ; wk(1)=tmp7
movq mm4,mm1 ; transpose coefficients
punpckldq mm1,mm3 ; mm1=(02 12)=data2
punpckhdq mm4,mm3 ; mm4=(03 13)=data3
movq mm0,mm2 ; transpose coefficients
punpckldq mm2,mm5 ; mm2=(04 14)=data4
punpckhdq mm0,mm5 ; mm0=(05 15)=data5
movq mm3,mm4
movq mm5,mm1
pfadd mm4,mm2 ; mm4=data3+data4=tmp3
pfadd mm1,mm0 ; mm1=data2+data5=tmp2
pfsub mm3,mm2 ; mm3=data3-data4=tmp4
pfsub mm5,mm0 ; mm5=data2-data5=tmp5
; -- Even part
movq mm2,mm7
movq mm0,mm6
pfsub mm7,mm4 ; mm7=tmp13
pfsub mm6,mm1 ; mm6=tmp12
pfadd mm2,mm4 ; mm2=tmp10
pfadd mm0,mm1 ; mm0=tmp11
pfadd mm6,mm7
pfmul mm6,[GOTOFF(ebx,PD_0_707)] ; mm6=z1
movq mm4,mm2
movq mm1,mm7
pfsub mm2,mm0 ; mm2=data4
pfsub mm7,mm6 ; mm7=data6
pfadd mm4,mm0 ; mm4=data0
pfadd mm1,mm6 ; mm1=data2
movq MMWORD [MMBLOCK(0,2,edx,SIZEOF_FAST_FLOAT)], mm2
movq MMWORD [MMBLOCK(0,3,edx,SIZEOF_FAST_FLOAT)], mm7
movq MMWORD [MMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)], mm4
movq MMWORD [MMBLOCK(0,1,edx,SIZEOF_FAST_FLOAT)], mm1
; -- Odd part
movq mm0, MMWORD [wk(0)] ; mm0=tmp6
movq mm6, MMWORD [wk(1)] ; mm6=tmp7
pfadd mm3,mm5 ; mm3=tmp10
pfadd mm5,mm0 ; mm5=tmp11
pfadd mm0,mm6 ; mm0=tmp12, mm6=tmp7
pfmul mm5,[GOTOFF(ebx,PD_0_707)] ; mm5=z3
movq mm2,mm3 ; mm2=tmp10
pfsub mm3,mm0
pfmul mm3,[GOTOFF(ebx,PD_0_382)] ; mm3=z5
pfmul mm2,[GOTOFF(ebx,PD_0_541)] ; mm2=MULTIPLY(tmp10,FIX_0_54119610)
pfmul mm0,[GOTOFF(ebx,PD_1_306)] ; mm0=MULTIPLY(tmp12,FIX_1_30656296)
pfadd mm2,mm3 ; mm2=z2
pfadd mm0,mm3 ; mm0=z4
movq mm7,mm6
pfsub mm6,mm5 ; mm6=z13
pfadd mm7,mm5 ; mm7=z11
movq mm4,mm6
movq mm1,mm7
pfsub mm6,mm2 ; mm6=data3
pfsub mm7,mm0 ; mm7=data7
pfadd mm4,mm2 ; mm4=data5
pfadd mm1,mm0 ; mm1=data1
movq MMWORD [MMBLOCK(1,1,edx,SIZEOF_FAST_FLOAT)], mm6
movq MMWORD [MMBLOCK(1,3,edx,SIZEOF_FAST_FLOAT)], mm7
movq MMWORD [MMBLOCK(1,2,edx,SIZEOF_FAST_FLOAT)], mm4
movq MMWORD [MMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)], mm1
add edx, byte 2*DCTSIZE*SIZEOF_FAST_FLOAT
dec ecx
jnz near .rowloop
; ---- Pass 2: process columns.
mov edx, POINTER [data(eax)] ; (FAST_FLOAT *)
mov ecx, DCTSIZE/2
alignx 16,7
.columnloop:
movq mm0, MMWORD [MMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)]
movq mm1, MMWORD [MMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)]
movq mm2, MMWORD [MMBLOCK(6,0,edx,SIZEOF_FAST_FLOAT)]
movq mm3, MMWORD [MMBLOCK(7,0,edx,SIZEOF_FAST_FLOAT)]
; mm0=(00 10), mm1=(01 11), mm2=(60 70), mm3=(61 71)
movq mm4,mm0 ; transpose coefficients
punpckldq mm0,mm1 ; mm0=(00 01)=data0
punpckhdq mm4,mm1 ; mm4=(10 11)=data1
movq mm5,mm2 ; transpose coefficients
punpckldq mm2,mm3 ; mm2=(60 61)=data6
punpckhdq mm5,mm3 ; mm5=(70 71)=data7
movq mm6,mm4
movq mm7,mm0
pfsub mm4,mm2 ; mm4=data1-data6=tmp6
pfsub mm0,mm5 ; mm0=data0-data7=tmp7
pfadd mm6,mm2 ; mm6=data1+data6=tmp1
pfadd mm7,mm5 ; mm7=data0+data7=tmp0
movq mm1, MMWORD [MMBLOCK(2,0,edx,SIZEOF_FAST_FLOAT)]
movq mm3, MMWORD [MMBLOCK(3,0,edx,SIZEOF_FAST_FLOAT)]
movq mm2, MMWORD [MMBLOCK(4,0,edx,SIZEOF_FAST_FLOAT)]
movq mm5, MMWORD [MMBLOCK(5,0,edx,SIZEOF_FAST_FLOAT)]
; mm1=(20 30), mm3=(21 31), mm2=(40 50), mm5=(41 51)
movq MMWORD [wk(0)], mm4 ; wk(0)=tmp6
movq MMWORD [wk(1)], mm0 ; wk(1)=tmp7
movq mm4,mm1 ; transpose coefficients
punpckldq mm1,mm3 ; mm1=(20 21)=data2
punpckhdq mm4,mm3 ; mm4=(30 31)=data3
movq mm0,mm2 ; transpose coefficients
punpckldq mm2,mm5 ; mm2=(40 41)=data4
punpckhdq mm0,mm5 ; mm0=(50 51)=data5
movq mm3,mm4
movq mm5,mm1
pfadd mm4,mm2 ; mm4=data3+data4=tmp3
pfadd mm1,mm0 ; mm1=data2+data5=tmp2
pfsub mm3,mm2 ; mm3=data3-data4=tmp4
pfsub mm5,mm0 ; mm5=data2-data5=tmp5
; -- Even part
movq mm2,mm7
movq mm0,mm6
pfsub mm7,mm4 ; mm7=tmp13
pfsub mm6,mm1 ; mm6=tmp12
pfadd mm2,mm4 ; mm2=tmp10
pfadd mm0,mm1 ; mm0=tmp11
pfadd mm6,mm7
pfmul mm6,[GOTOFF(ebx,PD_0_707)] ; mm6=z1
movq mm4,mm2
movq mm1,mm7
pfsub mm2,mm0 ; mm2=data4
pfsub mm7,mm6 ; mm7=data6
pfadd mm4,mm0 ; mm4=data0
pfadd mm1,mm6 ; mm1=data2
movq MMWORD [MMBLOCK(4,0,edx,SIZEOF_FAST_FLOAT)], mm2
movq MMWORD [MMBLOCK(6,0,edx,SIZEOF_FAST_FLOAT)], mm7
movq MMWORD [MMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)], mm4
movq MMWORD [MMBLOCK(2,0,edx,SIZEOF_FAST_FLOAT)], mm1
; -- Odd part
movq mm0, MMWORD [wk(0)] ; mm0=tmp6
movq mm6, MMWORD [wk(1)] ; mm6=tmp7
pfadd mm3,mm5 ; mm3=tmp10
pfadd mm5,mm0 ; mm5=tmp11
pfadd mm0,mm6 ; mm0=tmp12, mm6=tmp7
pfmul mm5,[GOTOFF(ebx,PD_0_707)] ; mm5=z3
movq mm2,mm3 ; mm2=tmp10
pfsub mm3,mm0
pfmul mm3,[GOTOFF(ebx,PD_0_382)] ; mm3=z5
pfmul mm2,[GOTOFF(ebx,PD_0_541)] ; mm2=MULTIPLY(tmp10,FIX_0_54119610)
pfmul mm0,[GOTOFF(ebx,PD_1_306)] ; mm0=MULTIPLY(tmp12,FIX_1_30656296)
pfadd mm2,mm3 ; mm2=z2
pfadd mm0,mm3 ; mm0=z4
movq mm7,mm6
pfsub mm6,mm5 ; mm6=z13
pfadd mm7,mm5 ; mm7=z11
movq mm4,mm6
movq mm1,mm7
pfsub mm6,mm2 ; mm6=data3
pfsub mm7,mm0 ; mm7=data7
pfadd mm4,mm2 ; mm4=data5
pfadd mm1,mm0 ; mm1=data1
movq MMWORD [MMBLOCK(3,0,edx,SIZEOF_FAST_FLOAT)], mm6
movq MMWORD [MMBLOCK(7,0,edx,SIZEOF_FAST_FLOAT)], mm7
movq MMWORD [MMBLOCK(5,0,edx,SIZEOF_FAST_FLOAT)], mm4
movq MMWORD [MMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)], mm1
add edx, byte 2*SIZEOF_FAST_FLOAT
dec ecx
jnz near .columnloop
femms ; empty MMX/3DNow! state
; pop edi ; unused
; pop esi ; unused
; pop edx ; need not be preserved
; pop ecx ; need not be preserved
poppic 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
Reference in New Issue View Git Blame Copy Permalink