mirror of
https://bitbucket.org/CPMADevs/cnq3
synced 2024-11-14 16:30:36 +00:00
fc9465caab
aside from the speed improvements, this also makes for nicer code in the renderer interaction with libjpeg, thanks to mem_dest support etc
357 lines
14 KiB
NASM
357 lines
14 KiB
NASM
;
|
|
; jfdctflt.asm - floating-point FDCT (64-bit SSE)
|
|
;
|
|
; 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
|
|
;
|
|
; 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"
|
|
|
|
; --------------------------------------------------------------------------
|
|
|
|
%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 16
|
|
global EXTN(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 16
|
|
|
|
; --------------------------------------------------------------------------
|
|
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 16
|
|
global EXTN(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
|
|
|
|
; ---- 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
|
|
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 16
|