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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /media/libjpeg/simd/jidctred-sse2.asm | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'media/libjpeg/simd/jidctred-sse2.asm')
-rw-r--r-- | media/libjpeg/simd/jidctred-sse2.asm | 593 |
1 files changed, 593 insertions, 0 deletions
diff --git a/media/libjpeg/simd/jidctred-sse2.asm b/media/libjpeg/simd/jidctred-sse2.asm new file mode 100644 index 000000000..232d9838d --- /dev/null +++ b/media/libjpeg/simd/jidctred-sse2.asm @@ -0,0 +1,593 @@ +; +; jidctred.asm - reduced-size IDCT (SSE2) +; +; 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 inverse-DCT routines that produce reduced-size +; output: either 4x4 or 2x2 pixels from an 8x8 DCT block. +; The following code is based directly on the IJG's original jidctred.c; +; see the jidctred.c for more details. +; +; [TAB8] + +%include "jsimdext.inc" +%include "jdct.inc" + +; -------------------------------------------------------------------------- + +%define CONST_BITS 13 +%define PASS1_BITS 2 + +%define DESCALE_P1_4 (CONST_BITS-PASS1_BITS+1) +%define DESCALE_P2_4 (CONST_BITS+PASS1_BITS+3+1) +%define DESCALE_P1_2 (CONST_BITS-PASS1_BITS+2) +%define DESCALE_P2_2 (CONST_BITS+PASS1_BITS+3+2) + +%if CONST_BITS == 13 +F_0_211 equ 1730 ; FIX(0.211164243) +F_0_509 equ 4176 ; FIX(0.509795579) +F_0_601 equ 4926 ; FIX(0.601344887) +F_0_720 equ 5906 ; FIX(0.720959822) +F_0_765 equ 6270 ; FIX(0.765366865) +F_0_850 equ 6967 ; FIX(0.850430095) +F_0_899 equ 7373 ; FIX(0.899976223) +F_1_061 equ 8697 ; FIX(1.061594337) +F_1_272 equ 10426 ; FIX(1.272758580) +F_1_451 equ 11893 ; FIX(1.451774981) +F_1_847 equ 15137 ; FIX(1.847759065) +F_2_172 equ 17799 ; FIX(2.172734803) +F_2_562 equ 20995 ; FIX(2.562915447) +F_3_624 equ 29692 ; FIX(3.624509785) +%else +; NASM cannot do compile-time arithmetic on floating-point constants. +%define DESCALE(x,n) (((x)+(1<<((n)-1)))>>(n)) +F_0_211 equ DESCALE( 226735879,30-CONST_BITS) ; FIX(0.211164243) +F_0_509 equ DESCALE( 547388834,30-CONST_BITS) ; FIX(0.509795579) +F_0_601 equ DESCALE( 645689155,30-CONST_BITS) ; FIX(0.601344887) +F_0_720 equ DESCALE( 774124714,30-CONST_BITS) ; FIX(0.720959822) +F_0_765 equ DESCALE( 821806413,30-CONST_BITS) ; FIX(0.765366865) +F_0_850 equ DESCALE( 913142361,30-CONST_BITS) ; FIX(0.850430095) +F_0_899 equ DESCALE( 966342111,30-CONST_BITS) ; FIX(0.899976223) +F_1_061 equ DESCALE(1139878239,30-CONST_BITS) ; FIX(1.061594337) +F_1_272 equ DESCALE(1366614119,30-CONST_BITS) ; FIX(1.272758580) +F_1_451 equ DESCALE(1558831516,30-CONST_BITS) ; FIX(1.451774981) +F_1_847 equ DESCALE(1984016188,30-CONST_BITS) ; FIX(1.847759065) +F_2_172 equ DESCALE(2332956230,30-CONST_BITS) ; FIX(2.172734803) +F_2_562 equ DESCALE(2751909506,30-CONST_BITS) ; FIX(2.562915447) +F_3_624 equ DESCALE(3891787747,30-CONST_BITS) ; FIX(3.624509785) +%endif + +; -------------------------------------------------------------------------- + SECTION SEG_CONST + + alignz 16 + global EXTN(jconst_idct_red_sse2) + +EXTN(jconst_idct_red_sse2): + +PW_F184_MF076 times 4 dw F_1_847,-F_0_765 +PW_F256_F089 times 4 dw F_2_562, F_0_899 +PW_F106_MF217 times 4 dw F_1_061,-F_2_172 +PW_MF060_MF050 times 4 dw -F_0_601,-F_0_509 +PW_F145_MF021 times 4 dw F_1_451,-F_0_211 +PW_F362_MF127 times 4 dw F_3_624,-F_1_272 +PW_F085_MF072 times 4 dw F_0_850,-F_0_720 +PD_DESCALE_P1_4 times 4 dd 1 << (DESCALE_P1_4-1) +PD_DESCALE_P2_4 times 4 dd 1 << (DESCALE_P2_4-1) +PD_DESCALE_P1_2 times 4 dd 1 << (DESCALE_P1_2-1) +PD_DESCALE_P2_2 times 4 dd 1 << (DESCALE_P2_2-1) +PB_CENTERJSAMP times 16 db CENTERJSAMPLE + + alignz 16 + +; -------------------------------------------------------------------------- + SECTION SEG_TEXT + BITS 32 +; +; Perform dequantization and inverse DCT on one block of coefficients, +; producing a reduced-size 4x4 output block. +; +; GLOBAL(void) +; jsimd_idct_4x4_sse2 (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_XMMWORD ; xmmword wk[WK_NUM] +%define WK_NUM 2 + + align 16 + global EXTN(jsimd_idct_4x4_sse2) + +EXTN(jsimd_idct_4x4_sse2): + push ebp + mov eax,esp ; eax = original ebp + sub esp, byte 4 + and esp, byte (-SIZEOF_XMMWORD) ; align to 128 bits + mov [esp],eax + mov ebp,esp ; ebp = aligned ebp + lea esp, [wk(0)] + pushpic ebx +; push ecx ; unused +; push edx ; need not be preserved + push esi + push edi + + get_GOT ebx ; get GOT address + + ; ---- Pass 1: process columns from input. + +; mov eax, [original_ebp] + mov edx, POINTER [dct_table(eax)] ; quantptr + mov esi, JCOEFPTR [coef_block(eax)] ; inptr + +%ifndef NO_ZERO_COLUMN_TEST_4X4_SSE2 + mov eax, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)] + or eax, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)] + jnz short .columnDCT + + movdqa xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)] + movdqa xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)] + por xmm0, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)] + por xmm1, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)] + por xmm0, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)] + por xmm1, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)] + por xmm0,xmm1 + packsswb xmm0,xmm0 + packsswb xmm0,xmm0 + movd eax,xmm0 + test eax,eax + jnz short .columnDCT + + ; -- AC terms all zero + + movdqa xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)] + pmullw xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + + psllw xmm0,PASS1_BITS + + movdqa xmm3,xmm0 ; xmm0=in0=(00 01 02 03 04 05 06 07) + punpcklwd xmm0,xmm0 ; xmm0=(00 00 01 01 02 02 03 03) + punpckhwd xmm3,xmm3 ; xmm3=(04 04 05 05 06 06 07 07) + + pshufd xmm1,xmm0,0x50 ; xmm1=[col0 col1]=(00 00 00 00 01 01 01 01) + pshufd xmm0,xmm0,0xFA ; xmm0=[col2 col3]=(02 02 02 02 03 03 03 03) + pshufd xmm6,xmm3,0x50 ; xmm6=[col4 col5]=(04 04 04 04 05 05 05 05) + pshufd xmm3,xmm3,0xFA ; xmm3=[col6 col7]=(06 06 06 06 07 07 07 07) + + jmp near .column_end + alignx 16,7 +%endif +.columnDCT: + + ; -- Odd part + + movdqa xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)] + movdqa xmm1, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)] + pmullw xmm0, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + pmullw xmm1, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + movdqa xmm2, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)] + movdqa xmm3, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)] + pmullw xmm2, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + pmullw xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + + movdqa xmm4,xmm0 + movdqa xmm5,xmm0 + punpcklwd xmm4,xmm1 + punpckhwd xmm5,xmm1 + movdqa xmm0,xmm4 + movdqa xmm1,xmm5 + pmaddwd xmm4,[GOTOFF(ebx,PW_F256_F089)] ; xmm4=(tmp2L) + pmaddwd xmm5,[GOTOFF(ebx,PW_F256_F089)] ; xmm5=(tmp2H) + pmaddwd xmm0,[GOTOFF(ebx,PW_F106_MF217)] ; xmm0=(tmp0L) + pmaddwd xmm1,[GOTOFF(ebx,PW_F106_MF217)] ; xmm1=(tmp0H) + + movdqa xmm6,xmm2 + movdqa xmm7,xmm2 + punpcklwd xmm6,xmm3 + punpckhwd xmm7,xmm3 + movdqa xmm2,xmm6 + movdqa xmm3,xmm7 + pmaddwd xmm6,[GOTOFF(ebx,PW_MF060_MF050)] ; xmm6=(tmp2L) + pmaddwd xmm7,[GOTOFF(ebx,PW_MF060_MF050)] ; xmm7=(tmp2H) + pmaddwd xmm2,[GOTOFF(ebx,PW_F145_MF021)] ; xmm2=(tmp0L) + pmaddwd xmm3,[GOTOFF(ebx,PW_F145_MF021)] ; xmm3=(tmp0H) + + paddd xmm6,xmm4 ; xmm6=tmp2L + paddd xmm7,xmm5 ; xmm7=tmp2H + paddd xmm2,xmm0 ; xmm2=tmp0L + paddd xmm3,xmm1 ; xmm3=tmp0H + + movdqa XMMWORD [wk(0)], xmm2 ; wk(0)=tmp0L + movdqa XMMWORD [wk(1)], xmm3 ; wk(1)=tmp0H + + ; -- Even part + + movdqa xmm4, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)] + movdqa xmm5, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)] + movdqa xmm0, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)] + pmullw xmm4, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + pmullw xmm5, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + pmullw xmm0, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + + pxor xmm1,xmm1 + pxor xmm2,xmm2 + punpcklwd xmm1,xmm4 ; xmm1=tmp0L + punpckhwd xmm2,xmm4 ; xmm2=tmp0H + psrad xmm1,(16-CONST_BITS-1) ; psrad xmm1,16 & pslld xmm1,CONST_BITS+1 + psrad xmm2,(16-CONST_BITS-1) ; psrad xmm2,16 & pslld xmm2,CONST_BITS+1 + + movdqa xmm3,xmm5 ; xmm5=in2=z2 + punpcklwd xmm5,xmm0 ; xmm0=in6=z3 + punpckhwd xmm3,xmm0 + pmaddwd xmm5,[GOTOFF(ebx,PW_F184_MF076)] ; xmm5=tmp2L + pmaddwd xmm3,[GOTOFF(ebx,PW_F184_MF076)] ; xmm3=tmp2H + + movdqa xmm4,xmm1 + movdqa xmm0,xmm2 + paddd xmm1,xmm5 ; xmm1=tmp10L + paddd xmm2,xmm3 ; xmm2=tmp10H + psubd xmm4,xmm5 ; xmm4=tmp12L + psubd xmm0,xmm3 ; xmm0=tmp12H + + ; -- Final output stage + + movdqa xmm5,xmm1 + movdqa xmm3,xmm2 + paddd xmm1,xmm6 ; xmm1=data0L + paddd xmm2,xmm7 ; xmm2=data0H + psubd xmm5,xmm6 ; xmm5=data3L + psubd xmm3,xmm7 ; xmm3=data3H + + movdqa xmm6,[GOTOFF(ebx,PD_DESCALE_P1_4)] ; xmm6=[PD_DESCALE_P1_4] + + paddd xmm1,xmm6 + paddd xmm2,xmm6 + psrad xmm1,DESCALE_P1_4 + psrad xmm2,DESCALE_P1_4 + paddd xmm5,xmm6 + paddd xmm3,xmm6 + psrad xmm5,DESCALE_P1_4 + psrad xmm3,DESCALE_P1_4 + + packssdw xmm1,xmm2 ; xmm1=data0=(00 01 02 03 04 05 06 07) + packssdw xmm5,xmm3 ; xmm5=data3=(30 31 32 33 34 35 36 37) + + movdqa xmm7, XMMWORD [wk(0)] ; xmm7=tmp0L + movdqa xmm6, XMMWORD [wk(1)] ; xmm6=tmp0H + + movdqa xmm2,xmm4 + movdqa xmm3,xmm0 + paddd xmm4,xmm7 ; xmm4=data1L + paddd xmm0,xmm6 ; xmm0=data1H + psubd xmm2,xmm7 ; xmm2=data2L + psubd xmm3,xmm6 ; xmm3=data2H + + movdqa xmm7,[GOTOFF(ebx,PD_DESCALE_P1_4)] ; xmm7=[PD_DESCALE_P1_4] + + paddd xmm4,xmm7 + paddd xmm0,xmm7 + psrad xmm4,DESCALE_P1_4 + psrad xmm0,DESCALE_P1_4 + paddd xmm2,xmm7 + paddd xmm3,xmm7 + psrad xmm2,DESCALE_P1_4 + psrad xmm3,DESCALE_P1_4 + + packssdw xmm4,xmm0 ; xmm4=data1=(10 11 12 13 14 15 16 17) + packssdw xmm2,xmm3 ; xmm2=data2=(20 21 22 23 24 25 26 27) + + movdqa xmm6,xmm1 ; transpose coefficients(phase 1) + punpcklwd xmm1,xmm4 ; xmm1=(00 10 01 11 02 12 03 13) + punpckhwd xmm6,xmm4 ; xmm6=(04 14 05 15 06 16 07 17) + movdqa xmm7,xmm2 ; transpose coefficients(phase 1) + punpcklwd xmm2,xmm5 ; xmm2=(20 30 21 31 22 32 23 33) + punpckhwd xmm7,xmm5 ; xmm7=(24 34 25 35 26 36 27 37) + + movdqa xmm0,xmm1 ; transpose coefficients(phase 2) + punpckldq xmm1,xmm2 ; xmm1=[col0 col1]=(00 10 20 30 01 11 21 31) + punpckhdq xmm0,xmm2 ; xmm0=[col2 col3]=(02 12 22 32 03 13 23 33) + movdqa xmm3,xmm6 ; transpose coefficients(phase 2) + punpckldq xmm6,xmm7 ; xmm6=[col4 col5]=(04 14 24 34 05 15 25 35) + punpckhdq xmm3,xmm7 ; xmm3=[col6 col7]=(06 16 26 36 07 17 27 37) +.column_end: + + ; -- Prefetch the next coefficient block + + prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 0*32] + prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 1*32] + prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 2*32] + prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 3*32] + + ; ---- Pass 2: process rows, store into output array. + + mov eax, [original_ebp] + mov edi, JSAMPARRAY [output_buf(eax)] ; (JSAMPROW *) + mov eax, JDIMENSION [output_col(eax)] + + ; -- Even part + + pxor xmm4,xmm4 + punpcklwd xmm4,xmm1 ; xmm4=tmp0 + psrad xmm4,(16-CONST_BITS-1) ; psrad xmm4,16 & pslld xmm4,CONST_BITS+1 + + ; -- Odd part + + punpckhwd xmm1,xmm0 + punpckhwd xmm6,xmm3 + movdqa xmm5,xmm1 + movdqa xmm2,xmm6 + pmaddwd xmm1,[GOTOFF(ebx,PW_F256_F089)] ; xmm1=(tmp2) + pmaddwd xmm6,[GOTOFF(ebx,PW_MF060_MF050)] ; xmm6=(tmp2) + pmaddwd xmm5,[GOTOFF(ebx,PW_F106_MF217)] ; xmm5=(tmp0) + pmaddwd xmm2,[GOTOFF(ebx,PW_F145_MF021)] ; xmm2=(tmp0) + + paddd xmm6,xmm1 ; xmm6=tmp2 + paddd xmm2,xmm5 ; xmm2=tmp0 + + ; -- Even part + + punpcklwd xmm0,xmm3 + pmaddwd xmm0,[GOTOFF(ebx,PW_F184_MF076)] ; xmm0=tmp2 + + movdqa xmm7,xmm4 + paddd xmm4,xmm0 ; xmm4=tmp10 + psubd xmm7,xmm0 ; xmm7=tmp12 + + ; -- Final output stage + + movdqa xmm1,[GOTOFF(ebx,PD_DESCALE_P2_4)] ; xmm1=[PD_DESCALE_P2_4] + + movdqa xmm5,xmm4 + movdqa xmm3,xmm7 + paddd xmm4,xmm6 ; xmm4=data0=(00 10 20 30) + paddd xmm7,xmm2 ; xmm7=data1=(01 11 21 31) + psubd xmm5,xmm6 ; xmm5=data3=(03 13 23 33) + psubd xmm3,xmm2 ; xmm3=data2=(02 12 22 32) + + paddd xmm4,xmm1 + paddd xmm7,xmm1 + psrad xmm4,DESCALE_P2_4 + psrad xmm7,DESCALE_P2_4 + paddd xmm5,xmm1 + paddd xmm3,xmm1 + psrad xmm5,DESCALE_P2_4 + psrad xmm3,DESCALE_P2_4 + + packssdw xmm4,xmm3 ; xmm4=(00 10 20 30 02 12 22 32) + packssdw xmm7,xmm5 ; xmm7=(01 11 21 31 03 13 23 33) + + movdqa xmm0,xmm4 ; transpose coefficients(phase 1) + punpcklwd xmm4,xmm7 ; xmm4=(00 01 10 11 20 21 30 31) + punpckhwd xmm0,xmm7 ; xmm0=(02 03 12 13 22 23 32 33) + + movdqa xmm6,xmm4 ; transpose coefficients(phase 2) + punpckldq xmm4,xmm0 ; xmm4=(00 01 02 03 10 11 12 13) + punpckhdq xmm6,xmm0 ; xmm6=(20 21 22 23 30 31 32 33) + + packsswb xmm4,xmm6 ; xmm4=(00 01 02 03 10 11 12 13 20 ..) + paddb xmm4,[GOTOFF(ebx,PB_CENTERJSAMP)] + + pshufd xmm2,xmm4,0x39 ; xmm2=(10 11 12 13 20 21 22 23 30 ..) + pshufd xmm1,xmm4,0x4E ; xmm1=(20 21 22 23 30 31 32 33 00 ..) + pshufd xmm3,xmm4,0x93 ; xmm3=(30 31 32 33 00 01 02 03 10 ..) + + mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] + mov esi, JSAMPROW [edi+1*SIZEOF_JSAMPROW] + movd XMM_DWORD [edx+eax*SIZEOF_JSAMPLE], xmm4 + movd XMM_DWORD [esi+eax*SIZEOF_JSAMPLE], xmm2 + mov edx, JSAMPROW [edi+2*SIZEOF_JSAMPROW] + mov esi, JSAMPROW [edi+3*SIZEOF_JSAMPROW] + movd XMM_DWORD [edx+eax*SIZEOF_JSAMPLE], xmm1 + movd XMM_DWORD [esi+eax*SIZEOF_JSAMPLE], xmm3 + + pop edi + pop esi +; pop edx ; need not be preserved +; pop ecx ; unused + poppic ebx + mov esp,ebp ; esp <- aligned ebp + pop esp ; esp <- original ebp + pop ebp + ret + + +; -------------------------------------------------------------------------- +; +; Perform dequantization and inverse DCT on one block of coefficients, +; producing a reduced-size 2x2 output block. +; +; GLOBAL(void) +; jsimd_idct_2x2_sse2 (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 + + align 16 + global EXTN(jsimd_idct_2x2_sse2) + +EXTN(jsimd_idct_2x2_sse2): + push ebp + mov ebp,esp + 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. + + mov edx, POINTER [dct_table(ebp)] ; quantptr + mov esi, JCOEFPTR [coef_block(ebp)] ; inptr + + ; | input: | result: | + ; | 00 01 ** 03 ** 05 ** 07 | | + ; | 10 11 ** 13 ** 15 ** 17 | | + ; | ** ** ** ** ** ** ** ** | | + ; | 30 31 ** 33 ** 35 ** 37 | A0 A1 A3 A5 A7 | + ; | ** ** ** ** ** ** ** ** | B0 B1 B3 B5 B7 | + ; | 50 51 ** 53 ** 55 ** 57 | | + ; | ** ** ** ** ** ** ** ** | | + ; | 70 71 ** 73 ** 75 ** 77 | | + + ; -- Odd part + + movdqa xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)] + movdqa xmm1, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)] + pmullw xmm0, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + pmullw xmm1, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + movdqa xmm2, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)] + movdqa xmm3, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)] + pmullw xmm2, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + pmullw xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + + ; xmm0=(10 11 ** 13 ** 15 ** 17), xmm1=(30 31 ** 33 ** 35 ** 37) + ; xmm2=(50 51 ** 53 ** 55 ** 57), xmm3=(70 71 ** 73 ** 75 ** 77) + + pcmpeqd xmm7,xmm7 + pslld xmm7,WORD_BIT ; xmm7={0x0000 0xFFFF 0x0000 0xFFFF ..} + + movdqa xmm4,xmm0 ; xmm4=(10 11 ** 13 ** 15 ** 17) + movdqa xmm5,xmm2 ; xmm5=(50 51 ** 53 ** 55 ** 57) + punpcklwd xmm4,xmm1 ; xmm4=(10 30 11 31 ** ** 13 33) + punpcklwd xmm5,xmm3 ; xmm5=(50 70 51 71 ** ** 53 73) + pmaddwd xmm4,[GOTOFF(ebx,PW_F362_MF127)] + pmaddwd xmm5,[GOTOFF(ebx,PW_F085_MF072)] + + psrld xmm0,WORD_BIT ; xmm0=(11 -- 13 -- 15 -- 17 --) + pand xmm1,xmm7 ; xmm1=(-- 31 -- 33 -- 35 -- 37) + psrld xmm2,WORD_BIT ; xmm2=(51 -- 53 -- 55 -- 57 --) + pand xmm3,xmm7 ; xmm3=(-- 71 -- 73 -- 75 -- 77) + por xmm0,xmm1 ; xmm0=(11 31 13 33 15 35 17 37) + por xmm2,xmm3 ; xmm2=(51 71 53 73 55 75 57 77) + pmaddwd xmm0,[GOTOFF(ebx,PW_F362_MF127)] + pmaddwd xmm2,[GOTOFF(ebx,PW_F085_MF072)] + + paddd xmm4,xmm5 ; xmm4=tmp0[col0 col1 **** col3] + paddd xmm0,xmm2 ; xmm0=tmp0[col1 col3 col5 col7] + + ; -- Even part + + movdqa xmm6, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)] + pmullw xmm6, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + + ; xmm6=(00 01 ** 03 ** 05 ** 07) + + movdqa xmm1,xmm6 ; xmm1=(00 01 ** 03 ** 05 ** 07) + pslld xmm6,WORD_BIT ; xmm6=(-- 00 -- ** -- ** -- **) + pand xmm1,xmm7 ; xmm1=(-- 01 -- 03 -- 05 -- 07) + psrad xmm6,(WORD_BIT-CONST_BITS-2) ; xmm6=tmp10[col0 **** **** ****] + psrad xmm1,(WORD_BIT-CONST_BITS-2) ; xmm1=tmp10[col1 col3 col5 col7] + + ; -- Final output stage + + movdqa xmm3,xmm6 + movdqa xmm5,xmm1 + paddd xmm6,xmm4 ; xmm6=data0[col0 **** **** ****]=(A0 ** ** **) + paddd xmm1,xmm0 ; xmm1=data0[col1 col3 col5 col7]=(A1 A3 A5 A7) + psubd xmm3,xmm4 ; xmm3=data1[col0 **** **** ****]=(B0 ** ** **) + psubd xmm5,xmm0 ; xmm5=data1[col1 col3 col5 col7]=(B1 B3 B5 B7) + + movdqa xmm2,[GOTOFF(ebx,PD_DESCALE_P1_2)] ; xmm2=[PD_DESCALE_P1_2] + + punpckldq xmm6,xmm3 ; xmm6=(A0 B0 ** **) + + movdqa xmm7,xmm1 + punpcklqdq xmm1,xmm5 ; xmm1=(A1 A3 B1 B3) + punpckhqdq xmm7,xmm5 ; xmm7=(A5 A7 B5 B7) + + paddd xmm6,xmm2 + psrad xmm6,DESCALE_P1_2 + + paddd xmm1,xmm2 + paddd xmm7,xmm2 + psrad xmm1,DESCALE_P1_2 + psrad xmm7,DESCALE_P1_2 + + ; -- Prefetch the next coefficient block + + prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 0*32] + prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 1*32] + prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 2*32] + prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 3*32] + + ; ---- Pass 2: process rows, store into output array. + + mov edi, JSAMPARRAY [output_buf(ebp)] ; (JSAMPROW *) + mov eax, JDIMENSION [output_col(ebp)] + + ; | input:| result:| + ; | A0 B0 | | + ; | A1 B1 | C0 C1 | + ; | A3 B3 | D0 D1 | + ; | A5 B5 | | + ; | A7 B7 | | + + ; -- Odd part + + packssdw xmm1,xmm1 ; xmm1=(A1 A3 B1 B3 A1 A3 B1 B3) + packssdw xmm7,xmm7 ; xmm7=(A5 A7 B5 B7 A5 A7 B5 B7) + pmaddwd xmm1,[GOTOFF(ebx,PW_F362_MF127)] + pmaddwd xmm7,[GOTOFF(ebx,PW_F085_MF072)] + + paddd xmm1,xmm7 ; xmm1=tmp0[row0 row1 row0 row1] + + ; -- Even part + + pslld xmm6,(CONST_BITS+2) ; xmm6=tmp10[row0 row1 **** ****] + + ; -- Final output stage + + movdqa xmm4,xmm6 + paddd xmm6,xmm1 ; xmm6=data0[row0 row1 **** ****]=(C0 C1 ** **) + psubd xmm4,xmm1 ; xmm4=data1[row0 row1 **** ****]=(D0 D1 ** **) + + punpckldq xmm6,xmm4 ; xmm6=(C0 D0 C1 D1) + + paddd xmm6,[GOTOFF(ebx,PD_DESCALE_P2_2)] + psrad xmm6,DESCALE_P2_2 + + packssdw xmm6,xmm6 ; xmm6=(C0 D0 C1 D1 C0 D0 C1 D1) + packsswb xmm6,xmm6 ; xmm6=(C0 D0 C1 D1 C0 D0 C1 D1 ..) + paddb xmm6,[GOTOFF(ebx,PB_CENTERJSAMP)] + + pextrw ebx,xmm6,0x00 ; ebx=(C0 D0 -- --) + pextrw ecx,xmm6,0x01 ; ecx=(C1 D1 -- --) + + mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] + mov esi, JSAMPROW [edi+1*SIZEOF_JSAMPROW] + mov WORD [edx+eax*SIZEOF_JSAMPLE], bx + mov WORD [esi+eax*SIZEOF_JSAMPLE], cx + + pop edi + pop esi +; pop edx ; need not be preserved +; pop ecx ; need not be preserved + pop ebx + 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 |