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Diffstat (limited to 'media/libjpeg/simd/jidctred-sse2-64.asm')
-rw-r--r-- | media/libjpeg/simd/jidctred-sse2-64.asm | 575 |
1 files changed, 0 insertions, 575 deletions
diff --git a/media/libjpeg/simd/jidctred-sse2-64.asm b/media/libjpeg/simd/jidctred-sse2-64.asm deleted file mode 100644 index a54bbe24e0..0000000000 --- a/media/libjpeg/simd/jidctred-sse2-64.asm +++ /dev/null @@ -1,575 +0,0 @@ -; -; jidctred.asm - reduced-size IDCT (64-bit SSE2) -; -; 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 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 64 -; -; 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) -; - -; r10 = void *dct_table -; r11 = JCOEFPTR coef_block -; r12 = JSAMPARRAY output_buf -; r13 = JDIMENSION output_col - -%define original_rbp rbp+0 -%define wk(i) rbp-(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 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 columns from input. - - mov rdx, r10 ; quantptr - mov rsi, r11 ; inptr - -%ifndef NO_ZERO_COLUMN_TEST_4X4_SSE2 - mov eax, DWORD [DWBLOCK(1,0,rsi,SIZEOF_JCOEF)] - or eax, DWORD [DWBLOCK(2,0,rsi,SIZEOF_JCOEF)] - jnz short .columnDCT - - movdqa xmm0, XMMWORD [XMMBLOCK(1,0,rsi,SIZEOF_JCOEF)] - movdqa xmm1, XMMWORD [XMMBLOCK(2,0,rsi,SIZEOF_JCOEF)] - por xmm0, XMMWORD [XMMBLOCK(3,0,rsi,SIZEOF_JCOEF)] - por xmm1, XMMWORD [XMMBLOCK(5,0,rsi,SIZEOF_JCOEF)] - por xmm0, XMMWORD [XMMBLOCK(6,0,rsi,SIZEOF_JCOEF)] - por xmm1, XMMWORD [XMMBLOCK(7,0,rsi,SIZEOF_JCOEF)] - por xmm0,xmm1 - packsswb xmm0,xmm0 - packsswb xmm0,xmm0 - movd eax,xmm0 - test rax,rax - jnz short .columnDCT - - ; -- AC terms all zero - - movdqa xmm0, XMMWORD [XMMBLOCK(0,0,rsi,SIZEOF_JCOEF)] - pmullw xmm0, XMMWORD [XMMBLOCK(0,0,rdx,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 -%endif -.columnDCT: - - ; -- Odd part - - movdqa xmm0, XMMWORD [XMMBLOCK(1,0,rsi,SIZEOF_JCOEF)] - movdqa xmm1, XMMWORD [XMMBLOCK(3,0,rsi,SIZEOF_JCOEF)] - pmullw xmm0, XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] - pmullw xmm1, XMMWORD [XMMBLOCK(3,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] - movdqa xmm2, XMMWORD [XMMBLOCK(5,0,rsi,SIZEOF_JCOEF)] - movdqa xmm3, XMMWORD [XMMBLOCK(7,0,rsi,SIZEOF_JCOEF)] - pmullw xmm2, XMMWORD [XMMBLOCK(5,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] - pmullw xmm3, XMMWORD [XMMBLOCK(7,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] - - movdqa xmm4,xmm0 - movdqa xmm5,xmm0 - punpcklwd xmm4,xmm1 - punpckhwd xmm5,xmm1 - movdqa xmm0,xmm4 - movdqa xmm1,xmm5 - pmaddwd xmm4,[rel PW_F256_F089] ; xmm4=(tmp2L) - pmaddwd xmm5,[rel PW_F256_F089] ; xmm5=(tmp2H) - pmaddwd xmm0,[rel PW_F106_MF217] ; xmm0=(tmp0L) - pmaddwd xmm1,[rel 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,[rel PW_MF060_MF050] ; xmm6=(tmp2L) - pmaddwd xmm7,[rel PW_MF060_MF050] ; xmm7=(tmp2H) - pmaddwd xmm2,[rel PW_F145_MF021] ; xmm2=(tmp0L) - pmaddwd xmm3,[rel 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,rsi,SIZEOF_JCOEF)] - movdqa xmm5, XMMWORD [XMMBLOCK(2,0,rsi,SIZEOF_JCOEF)] - movdqa xmm0, XMMWORD [XMMBLOCK(6,0,rsi,SIZEOF_JCOEF)] - pmullw xmm4, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] - pmullw xmm5, XMMWORD [XMMBLOCK(2,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] - pmullw xmm0, XMMWORD [XMMBLOCK(6,0,rdx,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,[rel PW_F184_MF076] ; xmm5=tmp2L - pmaddwd xmm3,[rel 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,[rel PD_DESCALE_P1_4] ; xmm6=[rel 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,[rel PD_DESCALE_P1_4] ; xmm7=[rel 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 [rsi + DCTSIZE2*SIZEOF_JCOEF + 0*32] - prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 1*32] - prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 2*32] - prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 3*32] - - ; ---- Pass 2: process rows, store into output array. - - mov rax, [original_rbp] - mov rdi, r12 ; (JSAMPROW *) - mov eax, r13d - - ; -- 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,[rel PW_F256_F089] ; xmm1=(tmp2) - pmaddwd xmm6,[rel PW_MF060_MF050] ; xmm6=(tmp2) - pmaddwd xmm5,[rel PW_F106_MF217] ; xmm5=(tmp0) - pmaddwd xmm2,[rel PW_F145_MF021] ; xmm2=(tmp0) - - paddd xmm6,xmm1 ; xmm6=tmp2 - paddd xmm2,xmm5 ; xmm2=tmp0 - - ; -- Even part - - punpcklwd xmm0,xmm3 - pmaddwd xmm0,[rel PW_F184_MF076] ; xmm0=tmp2 - - movdqa xmm7,xmm4 - paddd xmm4,xmm0 ; xmm4=tmp10 - psubd xmm7,xmm0 ; xmm7=tmp12 - - ; -- Final output stage - - movdqa xmm1,[rel PD_DESCALE_P2_4] ; xmm1=[rel 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,[rel 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 rdx, JSAMPROW [rdi+0*SIZEOF_JSAMPROW] - mov rsi, JSAMPROW [rdi+1*SIZEOF_JSAMPROW] - movd XMM_DWORD [rdx+rax*SIZEOF_JSAMPLE], xmm4 - movd XMM_DWORD [rsi+rax*SIZEOF_JSAMPLE], xmm2 - mov rdx, JSAMPROW [rdi+2*SIZEOF_JSAMPROW] - mov rsi, JSAMPROW [rdi+3*SIZEOF_JSAMPROW] - movd XMM_DWORD [rdx+rax*SIZEOF_JSAMPLE], xmm1 - movd XMM_DWORD [rsi+rax*SIZEOF_JSAMPLE], xmm3 - - uncollect_args - mov rsp,rbp ; rsp <- aligned rbp - pop rsp ; rsp <- original rbp - pop rbp - 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) -; - -; r10 = void *dct_table -; r11 = JCOEFPTR coef_block -; r12 = JSAMPARRAY output_buf -; r13 = JDIMENSION output_col - - align 16 - global EXTN(jsimd_idct_2x2_sse2) - -EXTN(jsimd_idct_2x2_sse2): - push rbp - mov rax,rsp - mov rbp,rsp - collect_args - push rbx - - ; ---- Pass 1: process columns from input. - - mov rdx, r10 ; quantptr - mov rsi, r11 ; 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,rsi,SIZEOF_JCOEF)] - movdqa xmm1, XMMWORD [XMMBLOCK(3,0,rsi,SIZEOF_JCOEF)] - pmullw xmm0, XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] - pmullw xmm1, XMMWORD [XMMBLOCK(3,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] - movdqa xmm2, XMMWORD [XMMBLOCK(5,0,rsi,SIZEOF_JCOEF)] - movdqa xmm3, XMMWORD [XMMBLOCK(7,0,rsi,SIZEOF_JCOEF)] - pmullw xmm2, XMMWORD [XMMBLOCK(5,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] - pmullw xmm3, XMMWORD [XMMBLOCK(7,0,rdx,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,[rel PW_F362_MF127] - pmaddwd xmm5,[rel 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,[rel PW_F362_MF127] - pmaddwd xmm2,[rel 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,rsi,SIZEOF_JCOEF)] - pmullw xmm6, XMMWORD [XMMBLOCK(0,0,rdx,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,[rel PD_DESCALE_P1_2] ; xmm2=[rel 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 [rsi + DCTSIZE2*SIZEOF_JCOEF + 0*32] - prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 1*32] - prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 2*32] - prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 3*32] - - ; ---- Pass 2: process rows, store into output array. - - mov rdi, r12 ; (JSAMPROW *) - mov eax, r13d - - ; | 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,[rel PW_F362_MF127] - pmaddwd xmm7,[rel 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,[rel 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,[rel PB_CENTERJSAMP] - - pextrw ebx,xmm6,0x00 ; ebx=(C0 D0 -- --) - pextrw ecx,xmm6,0x01 ; ecx=(C1 D1 -- --) - - mov rdx, JSAMPROW [rdi+0*SIZEOF_JSAMPROW] - mov rsi, JSAMPROW [rdi+1*SIZEOF_JSAMPROW] - mov WORD [rdx+rax*SIZEOF_JSAMPLE], bx - mov WORD [rsi+rax*SIZEOF_JSAMPLE], cx - - pop rbx - uncollect_args - 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 |