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comparison: media/libjpeg/simd/jcqnt3dn.asm
media/libjpeg/simd/jcqnt3dn.asm
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| -1:000000000000 | 0:5345f560945f |
|---|---|
| 1 ; | |
| 2 ; jcqnt3dn.asm - sample data conversion and quantization (3DNow! & MMX) | |
| 3 ; | |
| 4 ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB | |
| 5 ; | |
| 6 ; Based on | |
| 7 ; x86 SIMD extension for IJG JPEG library | |
| 8 ; Copyright (C) 1999-2006, MIYASAKA Masaru. | |
| 9 ; For conditions of distribution and use, see copyright notice in jsimdext.inc | |
| 10 ; | |
| 11 ; This file should be assembled with NASM (Netwide Assembler), | |
| 12 ; can *not* be assembled with Microsoft's MASM or any compatible | |
| 13 ; assembler (including Borland's Turbo Assembler). | |
| 14 ; NASM is available from http://nasm.sourceforge.net/ or | |
| 15 ; http://sourceforge.net/project/showfiles.php?group_id=6208 | |
| 16 ; | |
| 17 ; [TAB8] | |
| 18 | |
| 19 %include "jsimdext.inc" | |
| 20 %include "jdct.inc" | |
| 21 | |
| 22 ; -------------------------------------------------------------------------- | |
| 23 SECTION SEG_TEXT | |
| 24 BITS 32 | |
| 25 ; | |
| 26 ; Load data into workspace, applying unsigned->signed conversion | |
| 27 ; | |
| 28 ; GLOBAL(void) | |
| 29 ; jsimd_convsamp_float_3dnow (JSAMPARRAY sample_data, JDIMENSION start_col, | |
| 30 ; FAST_FLOAT * workspace); | |
| 31 ; | |
| 32 | |
| 33 %define sample_data ebp+8 ; JSAMPARRAY sample_data | |
| 34 %define start_col ebp+12 ; JDIMENSION start_col | |
| 35 %define workspace ebp+16 ; FAST_FLOAT * workspace | |
| 36 | |
| 37 align 16 | |
| 38 global EXTN(jsimd_convsamp_float_3dnow) | |
| 39 | |
| 40 EXTN(jsimd_convsamp_float_3dnow): | |
| 41 push ebp | |
| 42 mov ebp,esp | |
| 43 push ebx | |
| 44 ; push ecx ; need not be preserved | |
| 45 ; push edx ; need not be preserved | |
| 46 push esi | |
| 47 push edi | |
| 48 | |
| 49 pcmpeqw mm7,mm7 | |
| 50 psllw mm7,7 | |
| 51 packsswb mm7,mm7 ; mm7 = PB_CENTERJSAMPLE (0x808080..) | |
| 52 | |
| 53 mov esi, JSAMPARRAY [sample_data] ; (JSAMPROW *) | |
| 54 mov eax, JDIMENSION [start_col] | |
| 55 mov edi, POINTER [workspace] ; (DCTELEM *) | |
| 56 mov ecx, DCTSIZE/2 | |
| 57 alignx 16,7 | |
| 58 .convloop: | |
| 59 mov ebx, JSAMPROW [esi+0*SIZEOF_JSAMPROW] ; (JSAMPLE *) | |
| 60 mov edx, JSAMPROW [esi+1*SIZEOF_JSAMPROW] ; (JSAMPLE *) | |
| 61 | |
| 62 movq mm0, MMWORD [ebx+eax*SIZEOF_JSAMPLE] | |
| 63 movq mm1, MMWORD [edx+eax*SIZEOF_JSAMPLE] | |
| 64 | |
| 65 psubb mm0,mm7 ; mm0=(01234567) | |
| 66 psubb mm1,mm7 ; mm1=(89ABCDEF) | |
| 67 | |
| 68 punpcklbw mm2,mm0 ; mm2=(*0*1*2*3) | |
| 69 punpckhbw mm0,mm0 ; mm0=(*4*5*6*7) | |
| 70 punpcklbw mm3,mm1 ; mm3=(*8*9*A*B) | |
| 71 punpckhbw mm1,mm1 ; mm1=(*C*D*E*F) | |
| 72 | |
| 73 punpcklwd mm4,mm2 ; mm4=(***0***1) | |
| 74 punpckhwd mm2,mm2 ; mm2=(***2***3) | |
| 75 punpcklwd mm5,mm0 ; mm5=(***4***5) | |
| 76 punpckhwd mm0,mm0 ; mm0=(***6***7) | |
| 77 | |
| 78 psrad mm4,(DWORD_BIT-BYTE_BIT) ; mm4=(01) | |
| 79 psrad mm2,(DWORD_BIT-BYTE_BIT) ; mm2=(23) | |
| 80 pi2fd mm4,mm4 | |
| 81 pi2fd mm2,mm2 | |
| 82 psrad mm5,(DWORD_BIT-BYTE_BIT) ; mm5=(45) | |
| 83 psrad mm0,(DWORD_BIT-BYTE_BIT) ; mm0=(67) | |
| 84 pi2fd mm5,mm5 | |
| 85 pi2fd mm0,mm0 | |
| 86 | |
| 87 movq MMWORD [MMBLOCK(0,0,edi,SIZEOF_FAST_FLOAT)], mm4 | |
| 88 movq MMWORD [MMBLOCK(0,1,edi,SIZEOF_FAST_FLOAT)], mm2 | |
| 89 movq MMWORD [MMBLOCK(0,2,edi,SIZEOF_FAST_FLOAT)], mm5 | |
| 90 movq MMWORD [MMBLOCK(0,3,edi,SIZEOF_FAST_FLOAT)], mm0 | |
| 91 | |
| 92 punpcklwd mm6,mm3 ; mm6=(***8***9) | |
| 93 punpckhwd mm3,mm3 ; mm3=(***A***B) | |
| 94 punpcklwd mm4,mm1 ; mm4=(***C***D) | |
| 95 punpckhwd mm1,mm1 ; mm1=(***E***F) | |
| 96 | |
| 97 psrad mm6,(DWORD_BIT-BYTE_BIT) ; mm6=(89) | |
| 98 psrad mm3,(DWORD_BIT-BYTE_BIT) ; mm3=(AB) | |
| 99 pi2fd mm6,mm6 | |
| 100 pi2fd mm3,mm3 | |
| 101 psrad mm4,(DWORD_BIT-BYTE_BIT) ; mm4=(CD) | |
| 102 psrad mm1,(DWORD_BIT-BYTE_BIT) ; mm1=(EF) | |
| 103 pi2fd mm4,mm4 | |
| 104 pi2fd mm1,mm1 | |
| 105 | |
| 106 movq MMWORD [MMBLOCK(1,0,edi,SIZEOF_FAST_FLOAT)], mm6 | |
| 107 movq MMWORD [MMBLOCK(1,1,edi,SIZEOF_FAST_FLOAT)], mm3 | |
| 108 movq MMWORD [MMBLOCK(1,2,edi,SIZEOF_FAST_FLOAT)], mm4 | |
| 109 movq MMWORD [MMBLOCK(1,3,edi,SIZEOF_FAST_FLOAT)], mm1 | |
| 110 | |
| 111 add esi, byte 2*SIZEOF_JSAMPROW | |
| 112 add edi, byte 2*DCTSIZE*SIZEOF_FAST_FLOAT | |
| 113 dec ecx | |
| 114 jnz near .convloop | |
| 115 | |
| 116 femms ; empty MMX/3DNow! state | |
| 117 | |
| 118 pop edi | |
| 119 pop esi | |
| 120 ; pop edx ; need not be preserved | |
| 121 ; pop ecx ; need not be preserved | |
| 122 pop ebx | |
| 123 pop ebp | |
| 124 ret | |
| 125 | |
| 126 | |
| 127 ; -------------------------------------------------------------------------- | |
| 128 ; | |
| 129 ; Quantize/descale the coefficients, and store into coef_block | |
| 130 ; | |
| 131 ; GLOBAL(void) | |
| 132 ; jsimd_quantize_float_3dnow (JCOEFPTR coef_block, FAST_FLOAT * divisors, | |
| 133 ; FAST_FLOAT * workspace); | |
| 134 ; | |
| 135 | |
| 136 %define coef_block ebp+8 ; JCOEFPTR coef_block | |
| 137 %define divisors ebp+12 ; FAST_FLOAT * divisors | |
| 138 %define workspace ebp+16 ; FAST_FLOAT * workspace | |
| 139 | |
| 140 align 16 | |
| 141 global EXTN(jsimd_quantize_float_3dnow) | |
| 142 | |
| 143 EXTN(jsimd_quantize_float_3dnow): | |
| 144 push ebp | |
| 145 mov ebp,esp | |
| 146 ; push ebx ; unused | |
| 147 ; push ecx ; unused | |
| 148 ; push edx ; need not be preserved | |
| 149 push esi | |
| 150 push edi | |
| 151 | |
| 152 mov eax, 0x4B400000 ; (float)0x00C00000 (rndint_magic) | |
| 153 movd mm7,eax | |
| 154 punpckldq mm7,mm7 ; mm7={12582912.0F 12582912.0F} | |
| 155 | |
| 156 mov esi, POINTER [workspace] | |
| 157 mov edx, POINTER [divisors] | |
| 158 mov edi, JCOEFPTR [coef_block] | |
| 159 mov eax, DCTSIZE2/16 | |
| 160 alignx 16,7 | |
| 161 .quantloop: | |
| 162 movq mm0, MMWORD [MMBLOCK(0,0,esi,SIZEOF_FAST_FLOAT)] | |
| 163 movq mm1, MMWORD [MMBLOCK(0,1,esi,SIZEOF_FAST_FLOAT)] | |
| 164 pfmul mm0, MMWORD [MMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)] | |
| 165 pfmul mm1, MMWORD [MMBLOCK(0,1,edx,SIZEOF_FAST_FLOAT)] | |
| 166 movq mm2, MMWORD [MMBLOCK(0,2,esi,SIZEOF_FAST_FLOAT)] | |
| 167 movq mm3, MMWORD [MMBLOCK(0,3,esi,SIZEOF_FAST_FLOAT)] | |
| 168 pfmul mm2, MMWORD [MMBLOCK(0,2,edx,SIZEOF_FAST_FLOAT)] | |
| 169 pfmul mm3, MMWORD [MMBLOCK(0,3,edx,SIZEOF_FAST_FLOAT)] | |
| 170 | |
| 171 pfadd mm0,mm7 ; mm0=(00 ** 01 **) | |
| 172 pfadd mm1,mm7 ; mm1=(02 ** 03 **) | |
| 173 pfadd mm2,mm7 ; mm0=(04 ** 05 **) | |
| 174 pfadd mm3,mm7 ; mm1=(06 ** 07 **) | |
| 175 | |
| 176 movq mm4,mm0 | |
| 177 punpcklwd mm0,mm1 ; mm0=(00 02 ** **) | |
| 178 punpckhwd mm4,mm1 ; mm4=(01 03 ** **) | |
| 179 movq mm5,mm2 | |
| 180 punpcklwd mm2,mm3 ; mm2=(04 06 ** **) | |
| 181 punpckhwd mm5,mm3 ; mm5=(05 07 ** **) | |
| 182 | |
| 183 punpcklwd mm0,mm4 ; mm0=(00 01 02 03) | |
| 184 punpcklwd mm2,mm5 ; mm2=(04 05 06 07) | |
| 185 | |
| 186 movq mm6, MMWORD [MMBLOCK(1,0,esi,SIZEOF_FAST_FLOAT)] | |
| 187 movq mm1, MMWORD [MMBLOCK(1,1,esi,SIZEOF_FAST_FLOAT)] | |
| 188 pfmul mm6, MMWORD [MMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)] | |
| 189 pfmul mm1, MMWORD [MMBLOCK(1,1,edx,SIZEOF_FAST_FLOAT)] | |
| 190 movq mm3, MMWORD [MMBLOCK(1,2,esi,SIZEOF_FAST_FLOAT)] | |
| 191 movq mm4, MMWORD [MMBLOCK(1,3,esi,SIZEOF_FAST_FLOAT)] | |
| 192 pfmul mm3, MMWORD [MMBLOCK(1,2,edx,SIZEOF_FAST_FLOAT)] | |
| 193 pfmul mm4, MMWORD [MMBLOCK(1,3,edx,SIZEOF_FAST_FLOAT)] | |
| 194 | |
| 195 pfadd mm6,mm7 ; mm0=(10 ** 11 **) | |
| 196 pfadd mm1,mm7 ; mm4=(12 ** 13 **) | |
| 197 pfadd mm3,mm7 ; mm0=(14 ** 15 **) | |
| 198 pfadd mm4,mm7 ; mm4=(16 ** 17 **) | |
| 199 | |
| 200 movq mm5,mm6 | |
| 201 punpcklwd mm6,mm1 ; mm6=(10 12 ** **) | |
| 202 punpckhwd mm5,mm1 ; mm5=(11 13 ** **) | |
| 203 movq mm1,mm3 | |
| 204 punpcklwd mm3,mm4 ; mm3=(14 16 ** **) | |
| 205 punpckhwd mm1,mm4 ; mm1=(15 17 ** **) | |
| 206 | |
| 207 punpcklwd mm6,mm5 ; mm6=(10 11 12 13) | |
| 208 punpcklwd mm3,mm1 ; mm3=(14 15 16 17) | |
| 209 | |
| 210 movq MMWORD [MMBLOCK(0,0,edi,SIZEOF_JCOEF)], mm0 | |
| 211 movq MMWORD [MMBLOCK(0,1,edi,SIZEOF_JCOEF)], mm2 | |
| 212 movq MMWORD [MMBLOCK(1,0,edi,SIZEOF_JCOEF)], mm6 | |
| 213 movq MMWORD [MMBLOCK(1,1,edi,SIZEOF_JCOEF)], mm3 | |
| 214 | |
| 215 add esi, byte 16*SIZEOF_FAST_FLOAT | |
| 216 add edx, byte 16*SIZEOF_FAST_FLOAT | |
| 217 add edi, byte 16*SIZEOF_JCOEF | |
| 218 dec eax | |
| 219 jnz near .quantloop | |
| 220 | |
| 221 femms ; empty MMX/3DNow! state | |
| 222 | |
| 223 pop edi | |
| 224 pop esi | |
| 225 ; pop edx ; need not be preserved | |
| 226 ; pop ecx ; unused | |
| 227 ; pop ebx ; unused | |
| 228 pop ebp | |
| 229 ret | |
| 230 | |
| 231 ; For some reason, the OS X linker does not honor the request to align the | |
| 232 ; segment unless we do this. | |
| 233 align 16 |
