DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 1 | ; |
DRC | 72130be | 2014-05-09 20:14:26 +0000 | [diff] [blame] | 2 | ; jidctred.asm - reduced-size IDCT (64-bit SSE2) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 3 | ; |
| 4 | ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB |
| 5 | ; Copyright 2009 D. R. Commander |
| 6 | ; |
| 7 | ; Based on |
| 8 | ; x86 SIMD extension for IJG JPEG library |
| 9 | ; Copyright (C) 1999-2006, MIYASAKA Masaru. |
| 10 | ; For conditions of distribution and use, see copyright notice in jsimdext.inc |
| 11 | ; |
| 12 | ; This file should be assembled with NASM (Netwide Assembler), |
| 13 | ; can *not* be assembled with Microsoft's MASM or any compatible |
| 14 | ; assembler (including Borland's Turbo Assembler). |
| 15 | ; NASM is available from http://nasm.sourceforge.net/ or |
| 16 | ; http://sourceforge.net/project/showfiles.php?group_id=6208 |
| 17 | ; |
| 18 | ; This file contains inverse-DCT routines that produce reduced-size |
| 19 | ; output: either 4x4 or 2x2 pixels from an 8x8 DCT block. |
| 20 | ; The following code is based directly on the IJG's original jidctred.c; |
| 21 | ; see the jidctred.c for more details. |
| 22 | ; |
| 23 | ; [TAB8] |
| 24 | |
| 25 | %include "jsimdext.inc" |
| 26 | %include "jdct.inc" |
| 27 | |
| 28 | ; -------------------------------------------------------------------------- |
| 29 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 30 | %define CONST_BITS 13 |
| 31 | %define PASS1_BITS 2 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 32 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 33 | %define DESCALE_P1_4 (CONST_BITS-PASS1_BITS+1) |
| 34 | %define DESCALE_P2_4 (CONST_BITS+PASS1_BITS+3+1) |
| 35 | %define DESCALE_P1_2 (CONST_BITS-PASS1_BITS+2) |
| 36 | %define DESCALE_P2_2 (CONST_BITS+PASS1_BITS+3+2) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 37 | |
| 38 | %if CONST_BITS == 13 |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 39 | F_0_211 equ 1730 ; FIX(0.211164243) |
| 40 | F_0_509 equ 4176 ; FIX(0.509795579) |
| 41 | F_0_601 equ 4926 ; FIX(0.601344887) |
| 42 | F_0_720 equ 5906 ; FIX(0.720959822) |
| 43 | F_0_765 equ 6270 ; FIX(0.765366865) |
| 44 | F_0_850 equ 6967 ; FIX(0.850430095) |
| 45 | F_0_899 equ 7373 ; FIX(0.899976223) |
| 46 | F_1_061 equ 8697 ; FIX(1.061594337) |
| 47 | F_1_272 equ 10426 ; FIX(1.272758580) |
| 48 | F_1_451 equ 11893 ; FIX(1.451774981) |
| 49 | F_1_847 equ 15137 ; FIX(1.847759065) |
| 50 | F_2_172 equ 17799 ; FIX(2.172734803) |
| 51 | F_2_562 equ 20995 ; FIX(2.562915447) |
| 52 | F_3_624 equ 29692 ; FIX(3.624509785) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 53 | %else |
| 54 | ; NASM cannot do compile-time arithmetic on floating-point constants. |
| 55 | %define DESCALE(x,n) (((x)+(1<<((n)-1)))>>(n)) |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 56 | F_0_211 equ DESCALE( 226735879,30-CONST_BITS) ; FIX(0.211164243) |
| 57 | F_0_509 equ DESCALE( 547388834,30-CONST_BITS) ; FIX(0.509795579) |
| 58 | F_0_601 equ DESCALE( 645689155,30-CONST_BITS) ; FIX(0.601344887) |
| 59 | F_0_720 equ DESCALE( 774124714,30-CONST_BITS) ; FIX(0.720959822) |
| 60 | F_0_765 equ DESCALE( 821806413,30-CONST_BITS) ; FIX(0.765366865) |
| 61 | F_0_850 equ DESCALE( 913142361,30-CONST_BITS) ; FIX(0.850430095) |
| 62 | F_0_899 equ DESCALE( 966342111,30-CONST_BITS) ; FIX(0.899976223) |
| 63 | F_1_061 equ DESCALE(1139878239,30-CONST_BITS) ; FIX(1.061594337) |
| 64 | F_1_272 equ DESCALE(1366614119,30-CONST_BITS) ; FIX(1.272758580) |
| 65 | F_1_451 equ DESCALE(1558831516,30-CONST_BITS) ; FIX(1.451774981) |
| 66 | F_1_847 equ DESCALE(1984016188,30-CONST_BITS) ; FIX(1.847759065) |
| 67 | F_2_172 equ DESCALE(2332956230,30-CONST_BITS) ; FIX(2.172734803) |
| 68 | F_2_562 equ DESCALE(2751909506,30-CONST_BITS) ; FIX(2.562915447) |
| 69 | F_3_624 equ DESCALE(3891787747,30-CONST_BITS) ; FIX(3.624509785) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 70 | %endif |
| 71 | |
| 72 | ; -------------------------------------------------------------------------- |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 73 | SECTION SEG_CONST |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 74 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 75 | alignz 16 |
| 76 | global EXTN(jconst_idct_red_sse2) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 77 | |
| 78 | EXTN(jconst_idct_red_sse2): |
| 79 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 80 | PW_F184_MF076 times 4 dw F_1_847,-F_0_765 |
| 81 | PW_F256_F089 times 4 dw F_2_562, F_0_899 |
| 82 | PW_F106_MF217 times 4 dw F_1_061,-F_2_172 |
| 83 | PW_MF060_MF050 times 4 dw -F_0_601,-F_0_509 |
| 84 | PW_F145_MF021 times 4 dw F_1_451,-F_0_211 |
| 85 | PW_F362_MF127 times 4 dw F_3_624,-F_1_272 |
| 86 | PW_F085_MF072 times 4 dw F_0_850,-F_0_720 |
| 87 | PD_DESCALE_P1_4 times 4 dd 1 << (DESCALE_P1_4-1) |
| 88 | PD_DESCALE_P2_4 times 4 dd 1 << (DESCALE_P2_4-1) |
| 89 | PD_DESCALE_P1_2 times 4 dd 1 << (DESCALE_P1_2-1) |
| 90 | PD_DESCALE_P2_2 times 4 dd 1 << (DESCALE_P2_2-1) |
| 91 | PB_CENTERJSAMP times 16 db CENTERJSAMPLE |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 92 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 93 | alignz 16 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 94 | |
| 95 | ; -------------------------------------------------------------------------- |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 96 | SECTION SEG_TEXT |
| 97 | BITS 64 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 98 | ; |
| 99 | ; Perform dequantization and inverse DCT on one block of coefficients, |
| 100 | ; producing a reduced-size 4x4 output block. |
| 101 | ; |
| 102 | ; GLOBAL(void) |
DRC | bd49803 | 2016-02-19 08:53:33 -0600 | [diff] [blame] | 103 | ; jsimd_idct_4x4_sse2 (void *dct_table, JCOEFPTR coef_block, |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 104 | ; JSAMPARRAY output_buf, JDIMENSION output_col) |
| 105 | ; |
| 106 | |
DRC | bd49803 | 2016-02-19 08:53:33 -0600 | [diff] [blame] | 107 | ; r10 = void *dct_table |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 108 | ; r11 = JCOEFPTR coef_block |
| 109 | ; r12 = JSAMPARRAY output_buf |
| 110 | ; r13 = JDIMENSION output_col |
| 111 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 112 | %define original_rbp rbp+0 |
| 113 | %define wk(i) rbp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM] |
| 114 | %define WK_NUM 2 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 115 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 116 | align 16 |
| 117 | global EXTN(jsimd_idct_4x4_sse2) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 118 | |
| 119 | EXTN(jsimd_idct_4x4_sse2): |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 120 | push rbp |
| 121 | mov rax,rsp ; rax = original rbp |
| 122 | sub rsp, byte 4 |
| 123 | and rsp, byte (-SIZEOF_XMMWORD) ; align to 128 bits |
| 124 | mov [rsp],rax |
| 125 | mov rbp,rsp ; rbp = aligned rbp |
| 126 | lea rsp, [wk(0)] |
| 127 | collect_args |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 128 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 129 | ; ---- Pass 1: process columns from input. |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 130 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 131 | mov rdx, r10 ; quantptr |
| 132 | mov rsi, r11 ; inptr |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 133 | |
| 134 | %ifndef NO_ZERO_COLUMN_TEST_4X4_SSE2 |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 135 | mov eax, DWORD [DWBLOCK(1,0,rsi,SIZEOF_JCOEF)] |
| 136 | or eax, DWORD [DWBLOCK(2,0,rsi,SIZEOF_JCOEF)] |
| 137 | jnz short .columnDCT |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 138 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 139 | movdqa xmm0, XMMWORD [XMMBLOCK(1,0,rsi,SIZEOF_JCOEF)] |
| 140 | movdqa xmm1, XMMWORD [XMMBLOCK(2,0,rsi,SIZEOF_JCOEF)] |
| 141 | por xmm0, XMMWORD [XMMBLOCK(3,0,rsi,SIZEOF_JCOEF)] |
| 142 | por xmm1, XMMWORD [XMMBLOCK(5,0,rsi,SIZEOF_JCOEF)] |
| 143 | por xmm0, XMMWORD [XMMBLOCK(6,0,rsi,SIZEOF_JCOEF)] |
| 144 | por xmm1, XMMWORD [XMMBLOCK(7,0,rsi,SIZEOF_JCOEF)] |
| 145 | por xmm0,xmm1 |
| 146 | packsswb xmm0,xmm0 |
| 147 | packsswb xmm0,xmm0 |
| 148 | movd eax,xmm0 |
| 149 | test rax,rax |
| 150 | jnz short .columnDCT |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 151 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 152 | ; -- AC terms all zero |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 153 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 154 | movdqa xmm0, XMMWORD [XMMBLOCK(0,0,rsi,SIZEOF_JCOEF)] |
| 155 | pmullw xmm0, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 156 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 157 | psllw xmm0,PASS1_BITS |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 158 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 159 | movdqa xmm3,xmm0 ; xmm0=in0=(00 01 02 03 04 05 06 07) |
| 160 | punpcklwd xmm0,xmm0 ; xmm0=(00 00 01 01 02 02 03 03) |
| 161 | punpckhwd xmm3,xmm3 ; xmm3=(04 04 05 05 06 06 07 07) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 162 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 163 | pshufd xmm1,xmm0,0x50 ; xmm1=[col0 col1]=(00 00 00 00 01 01 01 01) |
| 164 | pshufd xmm0,xmm0,0xFA ; xmm0=[col2 col3]=(02 02 02 02 03 03 03 03) |
| 165 | pshufd xmm6,xmm3,0x50 ; xmm6=[col4 col5]=(04 04 04 04 05 05 05 05) |
| 166 | pshufd xmm3,xmm3,0xFA ; xmm3=[col6 col7]=(06 06 06 06 07 07 07 07) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 167 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 168 | jmp near .column_end |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 169 | %endif |
| 170 | .columnDCT: |
| 171 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 172 | ; -- Odd part |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 173 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 174 | movdqa xmm0, XMMWORD [XMMBLOCK(1,0,rsi,SIZEOF_JCOEF)] |
| 175 | movdqa xmm1, XMMWORD [XMMBLOCK(3,0,rsi,SIZEOF_JCOEF)] |
| 176 | pmullw xmm0, XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 177 | pmullw xmm1, XMMWORD [XMMBLOCK(3,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 178 | movdqa xmm2, XMMWORD [XMMBLOCK(5,0,rsi,SIZEOF_JCOEF)] |
| 179 | movdqa xmm3, XMMWORD [XMMBLOCK(7,0,rsi,SIZEOF_JCOEF)] |
| 180 | pmullw xmm2, XMMWORD [XMMBLOCK(5,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 181 | pmullw xmm3, XMMWORD [XMMBLOCK(7,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 182 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 183 | movdqa xmm4,xmm0 |
| 184 | movdqa xmm5,xmm0 |
| 185 | punpcklwd xmm4,xmm1 |
| 186 | punpckhwd xmm5,xmm1 |
| 187 | movdqa xmm0,xmm4 |
| 188 | movdqa xmm1,xmm5 |
| 189 | pmaddwd xmm4,[rel PW_F256_F089] ; xmm4=(tmp2L) |
| 190 | pmaddwd xmm5,[rel PW_F256_F089] ; xmm5=(tmp2H) |
| 191 | pmaddwd xmm0,[rel PW_F106_MF217] ; xmm0=(tmp0L) |
| 192 | pmaddwd xmm1,[rel PW_F106_MF217] ; xmm1=(tmp0H) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 193 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 194 | movdqa xmm6,xmm2 |
| 195 | movdqa xmm7,xmm2 |
| 196 | punpcklwd xmm6,xmm3 |
| 197 | punpckhwd xmm7,xmm3 |
| 198 | movdqa xmm2,xmm6 |
| 199 | movdqa xmm3,xmm7 |
| 200 | pmaddwd xmm6,[rel PW_MF060_MF050] ; xmm6=(tmp2L) |
| 201 | pmaddwd xmm7,[rel PW_MF060_MF050] ; xmm7=(tmp2H) |
| 202 | pmaddwd xmm2,[rel PW_F145_MF021] ; xmm2=(tmp0L) |
| 203 | pmaddwd xmm3,[rel PW_F145_MF021] ; xmm3=(tmp0H) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 204 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 205 | paddd xmm6,xmm4 ; xmm6=tmp2L |
| 206 | paddd xmm7,xmm5 ; xmm7=tmp2H |
| 207 | paddd xmm2,xmm0 ; xmm2=tmp0L |
| 208 | paddd xmm3,xmm1 ; xmm3=tmp0H |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 209 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 210 | movdqa XMMWORD [wk(0)], xmm2 ; wk(0)=tmp0L |
| 211 | movdqa XMMWORD [wk(1)], xmm3 ; wk(1)=tmp0H |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 212 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 213 | ; -- Even part |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 214 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 215 | movdqa xmm4, XMMWORD [XMMBLOCK(0,0,rsi,SIZEOF_JCOEF)] |
| 216 | movdqa xmm5, XMMWORD [XMMBLOCK(2,0,rsi,SIZEOF_JCOEF)] |
| 217 | movdqa xmm0, XMMWORD [XMMBLOCK(6,0,rsi,SIZEOF_JCOEF)] |
| 218 | pmullw xmm4, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 219 | pmullw xmm5, XMMWORD [XMMBLOCK(2,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 220 | pmullw xmm0, XMMWORD [XMMBLOCK(6,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 221 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 222 | pxor xmm1,xmm1 |
| 223 | pxor xmm2,xmm2 |
| 224 | punpcklwd xmm1,xmm4 ; xmm1=tmp0L |
| 225 | punpckhwd xmm2,xmm4 ; xmm2=tmp0H |
| 226 | psrad xmm1,(16-CONST_BITS-1) ; psrad xmm1,16 & pslld xmm1,CONST_BITS+1 |
| 227 | psrad xmm2,(16-CONST_BITS-1) ; psrad xmm2,16 & pslld xmm2,CONST_BITS+1 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 228 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 229 | movdqa xmm3,xmm5 ; xmm5=in2=z2 |
| 230 | punpcklwd xmm5,xmm0 ; xmm0=in6=z3 |
| 231 | punpckhwd xmm3,xmm0 |
| 232 | pmaddwd xmm5,[rel PW_F184_MF076] ; xmm5=tmp2L |
| 233 | pmaddwd xmm3,[rel PW_F184_MF076] ; xmm3=tmp2H |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 234 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 235 | movdqa xmm4,xmm1 |
| 236 | movdqa xmm0,xmm2 |
| 237 | paddd xmm1,xmm5 ; xmm1=tmp10L |
| 238 | paddd xmm2,xmm3 ; xmm2=tmp10H |
| 239 | psubd xmm4,xmm5 ; xmm4=tmp12L |
| 240 | psubd xmm0,xmm3 ; xmm0=tmp12H |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 241 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 242 | ; -- Final output stage |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 243 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 244 | movdqa xmm5,xmm1 |
| 245 | movdqa xmm3,xmm2 |
| 246 | paddd xmm1,xmm6 ; xmm1=data0L |
| 247 | paddd xmm2,xmm7 ; xmm2=data0H |
| 248 | psubd xmm5,xmm6 ; xmm5=data3L |
| 249 | psubd xmm3,xmm7 ; xmm3=data3H |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 250 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 251 | movdqa xmm6,[rel PD_DESCALE_P1_4] ; xmm6=[rel PD_DESCALE_P1_4] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 252 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 253 | paddd xmm1,xmm6 |
| 254 | paddd xmm2,xmm6 |
| 255 | psrad xmm1,DESCALE_P1_4 |
| 256 | psrad xmm2,DESCALE_P1_4 |
| 257 | paddd xmm5,xmm6 |
| 258 | paddd xmm3,xmm6 |
| 259 | psrad xmm5,DESCALE_P1_4 |
| 260 | psrad xmm3,DESCALE_P1_4 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 261 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 262 | packssdw xmm1,xmm2 ; xmm1=data0=(00 01 02 03 04 05 06 07) |
| 263 | packssdw xmm5,xmm3 ; xmm5=data3=(30 31 32 33 34 35 36 37) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 264 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 265 | movdqa xmm7, XMMWORD [wk(0)] ; xmm7=tmp0L |
| 266 | movdqa xmm6, XMMWORD [wk(1)] ; xmm6=tmp0H |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 267 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 268 | movdqa xmm2,xmm4 |
| 269 | movdqa xmm3,xmm0 |
| 270 | paddd xmm4,xmm7 ; xmm4=data1L |
| 271 | paddd xmm0,xmm6 ; xmm0=data1H |
| 272 | psubd xmm2,xmm7 ; xmm2=data2L |
| 273 | psubd xmm3,xmm6 ; xmm3=data2H |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 274 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 275 | movdqa xmm7,[rel PD_DESCALE_P1_4] ; xmm7=[rel PD_DESCALE_P1_4] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 276 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 277 | paddd xmm4,xmm7 |
| 278 | paddd xmm0,xmm7 |
| 279 | psrad xmm4,DESCALE_P1_4 |
| 280 | psrad xmm0,DESCALE_P1_4 |
| 281 | paddd xmm2,xmm7 |
| 282 | paddd xmm3,xmm7 |
| 283 | psrad xmm2,DESCALE_P1_4 |
| 284 | psrad xmm3,DESCALE_P1_4 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 285 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 286 | packssdw xmm4,xmm0 ; xmm4=data1=(10 11 12 13 14 15 16 17) |
| 287 | packssdw xmm2,xmm3 ; xmm2=data2=(20 21 22 23 24 25 26 27) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 288 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 289 | movdqa xmm6,xmm1 ; transpose coefficients(phase 1) |
| 290 | punpcklwd xmm1,xmm4 ; xmm1=(00 10 01 11 02 12 03 13) |
| 291 | punpckhwd xmm6,xmm4 ; xmm6=(04 14 05 15 06 16 07 17) |
| 292 | movdqa xmm7,xmm2 ; transpose coefficients(phase 1) |
| 293 | punpcklwd xmm2,xmm5 ; xmm2=(20 30 21 31 22 32 23 33) |
| 294 | punpckhwd xmm7,xmm5 ; xmm7=(24 34 25 35 26 36 27 37) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 295 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 296 | movdqa xmm0,xmm1 ; transpose coefficients(phase 2) |
| 297 | punpckldq xmm1,xmm2 ; xmm1=[col0 col1]=(00 10 20 30 01 11 21 31) |
| 298 | punpckhdq xmm0,xmm2 ; xmm0=[col2 col3]=(02 12 22 32 03 13 23 33) |
| 299 | movdqa xmm3,xmm6 ; transpose coefficients(phase 2) |
| 300 | punpckldq xmm6,xmm7 ; xmm6=[col4 col5]=(04 14 24 34 05 15 25 35) |
| 301 | punpckhdq xmm3,xmm7 ; xmm3=[col6 col7]=(06 16 26 36 07 17 27 37) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 302 | .column_end: |
| 303 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 304 | ; -- Prefetch the next coefficient block |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 305 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 306 | prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 0*32] |
| 307 | prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 1*32] |
| 308 | prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 2*32] |
| 309 | prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 3*32] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 310 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 311 | ; ---- Pass 2: process rows, store into output array. |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 312 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 313 | mov rax, [original_rbp] |
| 314 | mov rdi, r12 ; (JSAMPROW *) |
Chandler Carruth | 498d9bc | 2015-09-15 11:57:03 -0700 | [diff] [blame] | 315 | mov eax, r13d |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 316 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 317 | ; -- Even part |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 318 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 319 | pxor xmm4,xmm4 |
| 320 | punpcklwd xmm4,xmm1 ; xmm4=tmp0 |
| 321 | psrad xmm4,(16-CONST_BITS-1) ; psrad xmm4,16 & pslld xmm4,CONST_BITS+1 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 322 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 323 | ; -- Odd part |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 324 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 325 | punpckhwd xmm1,xmm0 |
| 326 | punpckhwd xmm6,xmm3 |
| 327 | movdqa xmm5,xmm1 |
| 328 | movdqa xmm2,xmm6 |
| 329 | pmaddwd xmm1,[rel PW_F256_F089] ; xmm1=(tmp2) |
| 330 | pmaddwd xmm6,[rel PW_MF060_MF050] ; xmm6=(tmp2) |
| 331 | pmaddwd xmm5,[rel PW_F106_MF217] ; xmm5=(tmp0) |
| 332 | pmaddwd xmm2,[rel PW_F145_MF021] ; xmm2=(tmp0) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 333 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 334 | paddd xmm6,xmm1 ; xmm6=tmp2 |
| 335 | paddd xmm2,xmm5 ; xmm2=tmp0 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 336 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 337 | ; -- Even part |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 338 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 339 | punpcklwd xmm0,xmm3 |
| 340 | pmaddwd xmm0,[rel PW_F184_MF076] ; xmm0=tmp2 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 341 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 342 | movdqa xmm7,xmm4 |
| 343 | paddd xmm4,xmm0 ; xmm4=tmp10 |
| 344 | psubd xmm7,xmm0 ; xmm7=tmp12 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 345 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 346 | ; -- Final output stage |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 347 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 348 | movdqa xmm1,[rel PD_DESCALE_P2_4] ; xmm1=[rel PD_DESCALE_P2_4] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 349 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 350 | movdqa xmm5,xmm4 |
| 351 | movdqa xmm3,xmm7 |
| 352 | paddd xmm4,xmm6 ; xmm4=data0=(00 10 20 30) |
| 353 | paddd xmm7,xmm2 ; xmm7=data1=(01 11 21 31) |
| 354 | psubd xmm5,xmm6 ; xmm5=data3=(03 13 23 33) |
| 355 | psubd xmm3,xmm2 ; xmm3=data2=(02 12 22 32) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 356 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 357 | paddd xmm4,xmm1 |
| 358 | paddd xmm7,xmm1 |
| 359 | psrad xmm4,DESCALE_P2_4 |
| 360 | psrad xmm7,DESCALE_P2_4 |
| 361 | paddd xmm5,xmm1 |
| 362 | paddd xmm3,xmm1 |
| 363 | psrad xmm5,DESCALE_P2_4 |
| 364 | psrad xmm3,DESCALE_P2_4 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 365 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 366 | packssdw xmm4,xmm3 ; xmm4=(00 10 20 30 02 12 22 32) |
| 367 | packssdw xmm7,xmm5 ; xmm7=(01 11 21 31 03 13 23 33) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 368 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 369 | movdqa xmm0,xmm4 ; transpose coefficients(phase 1) |
| 370 | punpcklwd xmm4,xmm7 ; xmm4=(00 01 10 11 20 21 30 31) |
| 371 | punpckhwd xmm0,xmm7 ; xmm0=(02 03 12 13 22 23 32 33) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 372 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 373 | movdqa xmm6,xmm4 ; transpose coefficients(phase 2) |
| 374 | punpckldq xmm4,xmm0 ; xmm4=(00 01 02 03 10 11 12 13) |
| 375 | punpckhdq xmm6,xmm0 ; xmm6=(20 21 22 23 30 31 32 33) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 376 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 377 | packsswb xmm4,xmm6 ; xmm4=(00 01 02 03 10 11 12 13 20 ..) |
| 378 | paddb xmm4,[rel PB_CENTERJSAMP] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 379 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 380 | pshufd xmm2,xmm4,0x39 ; xmm2=(10 11 12 13 20 21 22 23 30 ..) |
| 381 | pshufd xmm1,xmm4,0x4E ; xmm1=(20 21 22 23 30 31 32 33 00 ..) |
| 382 | pshufd xmm3,xmm4,0x93 ; xmm3=(30 31 32 33 00 01 02 03 10 ..) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 383 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 384 | mov rdx, JSAMPROW [rdi+0*SIZEOF_JSAMPROW] |
| 385 | mov rsi, JSAMPROW [rdi+1*SIZEOF_JSAMPROW] |
| 386 | movd XMM_DWORD [rdx+rax*SIZEOF_JSAMPLE], xmm4 |
| 387 | movd XMM_DWORD [rsi+rax*SIZEOF_JSAMPLE], xmm2 |
| 388 | mov rdx, JSAMPROW [rdi+2*SIZEOF_JSAMPROW] |
| 389 | mov rsi, JSAMPROW [rdi+3*SIZEOF_JSAMPROW] |
| 390 | movd XMM_DWORD [rdx+rax*SIZEOF_JSAMPLE], xmm1 |
| 391 | movd XMM_DWORD [rsi+rax*SIZEOF_JSAMPLE], xmm3 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 392 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 393 | uncollect_args |
| 394 | mov rsp,rbp ; rsp <- aligned rbp |
| 395 | pop rsp ; rsp <- original rbp |
| 396 | pop rbp |
| 397 | ret |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 398 | |
| 399 | |
| 400 | ; -------------------------------------------------------------------------- |
| 401 | ; |
| 402 | ; Perform dequantization and inverse DCT on one block of coefficients, |
| 403 | ; producing a reduced-size 2x2 output block. |
| 404 | ; |
| 405 | ; GLOBAL(void) |
DRC | bd49803 | 2016-02-19 08:53:33 -0600 | [diff] [blame] | 406 | ; jsimd_idct_2x2_sse2 (void *dct_table, JCOEFPTR coef_block, |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 407 | ; JSAMPARRAY output_buf, JDIMENSION output_col) |
| 408 | ; |
| 409 | |
DRC | bd49803 | 2016-02-19 08:53:33 -0600 | [diff] [blame] | 410 | ; r10 = void *dct_table |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 411 | ; r11 = JCOEFPTR coef_block |
| 412 | ; r12 = JSAMPARRAY output_buf |
| 413 | ; r13 = JDIMENSION output_col |
| 414 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 415 | align 16 |
| 416 | global EXTN(jsimd_idct_2x2_sse2) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 417 | |
| 418 | EXTN(jsimd_idct_2x2_sse2): |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 419 | push rbp |
| 420 | mov rax,rsp |
| 421 | mov rbp,rsp |
| 422 | collect_args |
| 423 | push rbx |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 424 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 425 | ; ---- Pass 1: process columns from input. |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 426 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 427 | mov rdx, r10 ; quantptr |
| 428 | mov rsi, r11 ; inptr |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 429 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 430 | ; | input: | result: | |
| 431 | ; | 00 01 ** 03 ** 05 ** 07 | | |
| 432 | ; | 10 11 ** 13 ** 15 ** 17 | | |
| 433 | ; | ** ** ** ** ** ** ** ** | | |
| 434 | ; | 30 31 ** 33 ** 35 ** 37 | A0 A1 A3 A5 A7 | |
| 435 | ; | ** ** ** ** ** ** ** ** | B0 B1 B3 B5 B7 | |
| 436 | ; | 50 51 ** 53 ** 55 ** 57 | | |
| 437 | ; | ** ** ** ** ** ** ** ** | | |
| 438 | ; | 70 71 ** 73 ** 75 ** 77 | | |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 439 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 440 | ; -- Odd part |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 441 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 442 | movdqa xmm0, XMMWORD [XMMBLOCK(1,0,rsi,SIZEOF_JCOEF)] |
| 443 | movdqa xmm1, XMMWORD [XMMBLOCK(3,0,rsi,SIZEOF_JCOEF)] |
| 444 | pmullw xmm0, XMMWORD [XMMBLOCK(1,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 445 | pmullw xmm1, XMMWORD [XMMBLOCK(3,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 446 | movdqa xmm2, XMMWORD [XMMBLOCK(5,0,rsi,SIZEOF_JCOEF)] |
| 447 | movdqa xmm3, XMMWORD [XMMBLOCK(7,0,rsi,SIZEOF_JCOEF)] |
| 448 | pmullw xmm2, XMMWORD [XMMBLOCK(5,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
| 449 | pmullw xmm3, XMMWORD [XMMBLOCK(7,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 450 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 451 | ; xmm0=(10 11 ** 13 ** 15 ** 17), xmm1=(30 31 ** 33 ** 35 ** 37) |
| 452 | ; xmm2=(50 51 ** 53 ** 55 ** 57), xmm3=(70 71 ** 73 ** 75 ** 77) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 453 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 454 | pcmpeqd xmm7,xmm7 |
| 455 | pslld xmm7,WORD_BIT ; xmm7={0x0000 0xFFFF 0x0000 0xFFFF ..} |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 456 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 457 | movdqa xmm4,xmm0 ; xmm4=(10 11 ** 13 ** 15 ** 17) |
| 458 | movdqa xmm5,xmm2 ; xmm5=(50 51 ** 53 ** 55 ** 57) |
| 459 | punpcklwd xmm4,xmm1 ; xmm4=(10 30 11 31 ** ** 13 33) |
| 460 | punpcklwd xmm5,xmm3 ; xmm5=(50 70 51 71 ** ** 53 73) |
| 461 | pmaddwd xmm4,[rel PW_F362_MF127] |
| 462 | pmaddwd xmm5,[rel PW_F085_MF072] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 463 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 464 | psrld xmm0,WORD_BIT ; xmm0=(11 -- 13 -- 15 -- 17 --) |
| 465 | pand xmm1,xmm7 ; xmm1=(-- 31 -- 33 -- 35 -- 37) |
| 466 | psrld xmm2,WORD_BIT ; xmm2=(51 -- 53 -- 55 -- 57 --) |
| 467 | pand xmm3,xmm7 ; xmm3=(-- 71 -- 73 -- 75 -- 77) |
| 468 | por xmm0,xmm1 ; xmm0=(11 31 13 33 15 35 17 37) |
| 469 | por xmm2,xmm3 ; xmm2=(51 71 53 73 55 75 57 77) |
| 470 | pmaddwd xmm0,[rel PW_F362_MF127] |
| 471 | pmaddwd xmm2,[rel PW_F085_MF072] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 472 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 473 | paddd xmm4,xmm5 ; xmm4=tmp0[col0 col1 **** col3] |
| 474 | paddd xmm0,xmm2 ; xmm0=tmp0[col1 col3 col5 col7] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 475 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 476 | ; -- Even part |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 477 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 478 | movdqa xmm6, XMMWORD [XMMBLOCK(0,0,rsi,SIZEOF_JCOEF)] |
| 479 | pmullw xmm6, XMMWORD [XMMBLOCK(0,0,rdx,SIZEOF_ISLOW_MULT_TYPE)] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 480 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 481 | ; xmm6=(00 01 ** 03 ** 05 ** 07) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 482 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 483 | movdqa xmm1,xmm6 ; xmm1=(00 01 ** 03 ** 05 ** 07) |
| 484 | pslld xmm6,WORD_BIT ; xmm6=(-- 00 -- ** -- ** -- **) |
| 485 | pand xmm1,xmm7 ; xmm1=(-- 01 -- 03 -- 05 -- 07) |
| 486 | psrad xmm6,(WORD_BIT-CONST_BITS-2) ; xmm6=tmp10[col0 **** **** ****] |
| 487 | psrad xmm1,(WORD_BIT-CONST_BITS-2) ; xmm1=tmp10[col1 col3 col5 col7] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 488 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 489 | ; -- Final output stage |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 490 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 491 | movdqa xmm3,xmm6 |
| 492 | movdqa xmm5,xmm1 |
| 493 | paddd xmm6,xmm4 ; xmm6=data0[col0 **** **** ****]=(A0 ** ** **) |
| 494 | paddd xmm1,xmm0 ; xmm1=data0[col1 col3 col5 col7]=(A1 A3 A5 A7) |
| 495 | psubd xmm3,xmm4 ; xmm3=data1[col0 **** **** ****]=(B0 ** ** **) |
| 496 | psubd xmm5,xmm0 ; xmm5=data1[col1 col3 col5 col7]=(B1 B3 B5 B7) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 497 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 498 | movdqa xmm2,[rel PD_DESCALE_P1_2] ; xmm2=[rel PD_DESCALE_P1_2] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 499 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 500 | punpckldq xmm6,xmm3 ; xmm6=(A0 B0 ** **) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 501 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 502 | movdqa xmm7,xmm1 |
| 503 | punpcklqdq xmm1,xmm5 ; xmm1=(A1 A3 B1 B3) |
| 504 | punpckhqdq xmm7,xmm5 ; xmm7=(A5 A7 B5 B7) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 505 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 506 | paddd xmm6,xmm2 |
| 507 | psrad xmm6,DESCALE_P1_2 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 508 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 509 | paddd xmm1,xmm2 |
| 510 | paddd xmm7,xmm2 |
| 511 | psrad xmm1,DESCALE_P1_2 |
| 512 | psrad xmm7,DESCALE_P1_2 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 513 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 514 | ; -- Prefetch the next coefficient block |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 515 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 516 | prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 0*32] |
| 517 | prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 1*32] |
| 518 | prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 2*32] |
| 519 | prefetchnta [rsi + DCTSIZE2*SIZEOF_JCOEF + 3*32] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 520 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 521 | ; ---- Pass 2: process rows, store into output array. |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 522 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 523 | mov rdi, r12 ; (JSAMPROW *) |
Chandler Carruth | 498d9bc | 2015-09-15 11:57:03 -0700 | [diff] [blame] | 524 | mov eax, r13d |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 525 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 526 | ; | input:| result:| |
| 527 | ; | A0 B0 | | |
| 528 | ; | A1 B1 | C0 C1 | |
| 529 | ; | A3 B3 | D0 D1 | |
| 530 | ; | A5 B5 | | |
| 531 | ; | A7 B7 | | |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 532 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 533 | ; -- Odd part |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 534 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 535 | packssdw xmm1,xmm1 ; xmm1=(A1 A3 B1 B3 A1 A3 B1 B3) |
| 536 | packssdw xmm7,xmm7 ; xmm7=(A5 A7 B5 B7 A5 A7 B5 B7) |
| 537 | pmaddwd xmm1,[rel PW_F362_MF127] |
| 538 | pmaddwd xmm7,[rel PW_F085_MF072] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 539 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 540 | paddd xmm1,xmm7 ; xmm1=tmp0[row0 row1 row0 row1] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 541 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 542 | ; -- Even part |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 543 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 544 | pslld xmm6,(CONST_BITS+2) ; xmm6=tmp10[row0 row1 **** ****] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 545 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 546 | ; -- Final output stage |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 547 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 548 | movdqa xmm4,xmm6 |
| 549 | paddd xmm6,xmm1 ; xmm6=data0[row0 row1 **** ****]=(C0 C1 ** **) |
| 550 | psubd xmm4,xmm1 ; xmm4=data1[row0 row1 **** ****]=(D0 D1 ** **) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 551 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 552 | punpckldq xmm6,xmm4 ; xmm6=(C0 D0 C1 D1) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 553 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 554 | paddd xmm6,[rel PD_DESCALE_P2_2] |
| 555 | psrad xmm6,DESCALE_P2_2 |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 556 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 557 | packssdw xmm6,xmm6 ; xmm6=(C0 D0 C1 D1 C0 D0 C1 D1) |
| 558 | packsswb xmm6,xmm6 ; xmm6=(C0 D0 C1 D1 C0 D0 C1 D1 ..) |
| 559 | paddb xmm6,[rel PB_CENTERJSAMP] |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 560 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 561 | pextrw ebx,xmm6,0x00 ; ebx=(C0 D0 -- --) |
| 562 | pextrw ecx,xmm6,0x01 ; ecx=(C1 D1 -- --) |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 563 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 564 | mov rdx, JSAMPROW [rdi+0*SIZEOF_JSAMPROW] |
| 565 | mov rsi, JSAMPROW [rdi+1*SIZEOF_JSAMPROW] |
| 566 | mov WORD [rdx+rax*SIZEOF_JSAMPLE], bx |
| 567 | mov WORD [rsi+rax*SIZEOF_JSAMPLE], cx |
DRC | cdc8ac3 | 2009-06-25 20:38:31 +0000 | [diff] [blame] | 568 | |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 569 | pop rbx |
| 570 | uncollect_args |
| 571 | pop rbp |
| 572 | ret |
DRC | 132b5fd | 2009-10-08 09:04:56 +0000 | [diff] [blame] | 573 | |
| 574 | ; For some reason, the OS X linker does not honor the request to align the |
| 575 | ; segment unless we do this. |
DRC | e5eaf37 | 2014-05-09 18:00:32 +0000 | [diff] [blame] | 576 | align 16 |