kc3-lang/libjpeg-turbo/simd/i386/jquant-3dn.asm
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Hash : eb753630
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Date : 2024-08-31T16:50:08
Update URLs - Eliminate unnecessary "www." - Use HTTPS. - Update Java, MSYS, tdm-gcc, and NSIS URLs. - Update URL and title of Agner Fog's assembly language optimization manual. - Remove extraneous information about MASM and Borland Turbo Assembler and outdated NASM URLs from the x86 assembly headers, and mention Yasm.
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simd/i386/jquant-3dn.asm
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; ; jquant.asm - sample data conversion and quantization (3DNow! & MMX) ; ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB ; Copyright (C) 2016, 2024, 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) or Yasm. %include "jsimdext.inc" %include "jdct.inc" ; -------------------------------------------------------------------------- SECTION SEG_TEXT BITS 32 ; ; Load data into workspace, applying unsigned->signed conversion ; ; GLOBAL(void) ; jsimd_convsamp_float_3dnow(JSAMPARRAY sample_data, JDIMENSION start_col, ; FAST_FLOAT *workspace); ; %define sample_data ebp + 8 ; JSAMPARRAY sample_data %define start_col ebp + 12 ; JDIMENSION start_col %define workspace ebp + 16 ; FAST_FLOAT *workspace align 32 GLOBAL_FUNCTION(jsimd_convsamp_float_3dnow) EXTN(jsimd_convsamp_float_3dnow): push ebp mov ebp, esp push ebx ; push ecx ; need not be preserved ; push edx ; need not be preserved push esi push edi pcmpeqw mm7, mm7 psllw mm7, 7 packsswb mm7, mm7 ; mm7 = PB_CENTERJSAMPLE (0x808080..) mov esi, JSAMPARRAY [sample_data] ; (JSAMPROW *) mov eax, JDIMENSION [start_col] mov edi, POINTER [workspace] ; (DCTELEM *) mov ecx, DCTSIZE/2 ALIGNX 16, 7 .convloop: mov ebx, JSAMPROW [esi+0*SIZEOF_JSAMPROW] ; (JSAMPLE *) mov edx, JSAMPROW [esi+1*SIZEOF_JSAMPROW] ; (JSAMPLE *) movq mm0, MMWORD [ebx+eax*SIZEOF_JSAMPLE] movq mm1, MMWORD [edx+eax*SIZEOF_JSAMPLE] psubb mm0, mm7 ; mm0=(01234567) psubb mm1, mm7 ; mm1=(89ABCDEF) punpcklbw mm2, mm0 ; mm2=(*0*1*2*3) punpckhbw mm0, mm0 ; mm0=(*4*5*6*7) punpcklbw mm3, mm1 ; mm3=(*8*9*A*B) punpckhbw mm1, mm1 ; mm1=(*C*D*E*F) punpcklwd mm4, mm2 ; mm4=(***0***1) punpckhwd mm2, mm2 ; mm2=(***2***3) punpcklwd mm5, mm0 ; mm5=(***4***5) punpckhwd mm0, mm0 ; mm0=(***6***7) psrad mm4, (DWORD_BIT-BYTE_BIT) ; mm4=(01) psrad mm2, (DWORD_BIT-BYTE_BIT) ; mm2=(23) pi2fd mm4, mm4 pi2fd mm2, mm2 psrad mm5, (DWORD_BIT-BYTE_BIT) ; mm5=(45) psrad mm0, (DWORD_BIT-BYTE_BIT) ; mm0=(67) pi2fd mm5, mm5 pi2fd mm0, mm0 movq MMWORD [MMBLOCK(0,0,edi,SIZEOF_FAST_FLOAT)], mm4 movq MMWORD [MMBLOCK(0,1,edi,SIZEOF_FAST_FLOAT)], mm2 movq MMWORD [MMBLOCK(0,2,edi,SIZEOF_FAST_FLOAT)], mm5 movq MMWORD [MMBLOCK(0,3,edi,SIZEOF_FAST_FLOAT)], mm0 punpcklwd mm6, mm3 ; mm6=(***8***9) punpckhwd mm3, mm3 ; mm3=(***A***B) punpcklwd mm4, mm1 ; mm4=(***C***D) punpckhwd mm1, mm1 ; mm1=(***E***F) psrad mm6, (DWORD_BIT-BYTE_BIT) ; mm6=(89) psrad mm3, (DWORD_BIT-BYTE_BIT) ; mm3=(AB) pi2fd mm6, mm6 pi2fd mm3, mm3 psrad mm4, (DWORD_BIT-BYTE_BIT) ; mm4=(CD) psrad mm1, (DWORD_BIT-BYTE_BIT) ; mm1=(EF) pi2fd mm4, mm4 pi2fd mm1, mm1 movq MMWORD [MMBLOCK(1,0,edi,SIZEOF_FAST_FLOAT)], mm6 movq MMWORD [MMBLOCK(1,1,edi,SIZEOF_FAST_FLOAT)], mm3 movq MMWORD [MMBLOCK(1,2,edi,SIZEOF_FAST_FLOAT)], mm4 movq MMWORD [MMBLOCK(1,3,edi,SIZEOF_FAST_FLOAT)], mm1 add esi, byte 2*SIZEOF_JSAMPROW add edi, byte 2*DCTSIZE*SIZEOF_FAST_FLOAT dec ecx jnz near .convloop femms ; empty MMX/3DNow! state pop edi pop esi ; pop edx ; need not be preserved ; pop ecx ; need not be preserved pop ebx pop ebp ret ; -------------------------------------------------------------------------- ; ; Quantize/descale the coefficients, and store into coef_block ; ; GLOBAL(void) ; jsimd_quantize_float_3dnow(JCOEFPTR coef_block, FAST_FLOAT *divisors, ; FAST_FLOAT *workspace); ; %define coef_block ebp + 8 ; JCOEFPTR coef_block %define divisors ebp + 12 ; FAST_FLOAT *divisors %define workspace ebp + 16 ; FAST_FLOAT *workspace align 32 GLOBAL_FUNCTION(jsimd_quantize_float_3dnow) EXTN(jsimd_quantize_float_3dnow): push ebp mov ebp, esp ; push ebx ; unused ; push ecx ; unused ; push edx ; need not be preserved push esi push edi mov eax, 0x4B400000 ; (float)0x00C00000 (rndint_magic) movd mm7, eax punpckldq mm7, mm7 ; mm7={12582912.0F 12582912.0F} mov esi, POINTER [workspace] mov edx, POINTER [divisors] mov edi, JCOEFPTR [coef_block] mov eax, DCTSIZE2/16 ALIGNX 16, 7 .quantloop: movq mm0, MMWORD [MMBLOCK(0,0,esi,SIZEOF_FAST_FLOAT)] movq mm1, MMWORD [MMBLOCK(0,1,esi,SIZEOF_FAST_FLOAT)] pfmul mm0, MMWORD [MMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)] pfmul mm1, MMWORD [MMBLOCK(0,1,edx,SIZEOF_FAST_FLOAT)] movq mm2, MMWORD [MMBLOCK(0,2,esi,SIZEOF_FAST_FLOAT)] movq mm3, MMWORD [MMBLOCK(0,3,esi,SIZEOF_FAST_FLOAT)] pfmul mm2, MMWORD [MMBLOCK(0,2,edx,SIZEOF_FAST_FLOAT)] pfmul mm3, MMWORD [MMBLOCK(0,3,edx,SIZEOF_FAST_FLOAT)] pfadd mm0, mm7 ; mm0=(00 ** 01 **) pfadd mm1, mm7 ; mm1=(02 ** 03 **) pfadd mm2, mm7 ; mm0=(04 ** 05 **) pfadd mm3, mm7 ; mm1=(06 ** 07 **) movq mm4, mm0 punpcklwd mm0, mm1 ; mm0=(00 02 ** **) punpckhwd mm4, mm1 ; mm4=(01 03 ** **) movq mm5, mm2 punpcklwd mm2, mm3 ; mm2=(04 06 ** **) punpckhwd mm5, mm3 ; mm5=(05 07 ** **) punpcklwd mm0, mm4 ; mm0=(00 01 02 03) punpcklwd mm2, mm5 ; mm2=(04 05 06 07) movq mm6, MMWORD [MMBLOCK(1,0,esi,SIZEOF_FAST_FLOAT)] movq mm1, MMWORD [MMBLOCK(1,1,esi,SIZEOF_FAST_FLOAT)] pfmul mm6, MMWORD [MMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)] pfmul mm1, MMWORD [MMBLOCK(1,1,edx,SIZEOF_FAST_FLOAT)] movq mm3, MMWORD [MMBLOCK(1,2,esi,SIZEOF_FAST_FLOAT)] movq mm4, MMWORD [MMBLOCK(1,3,esi,SIZEOF_FAST_FLOAT)] pfmul mm3, MMWORD [MMBLOCK(1,2,edx,SIZEOF_FAST_FLOAT)] pfmul mm4, MMWORD [MMBLOCK(1,3,edx,SIZEOF_FAST_FLOAT)] pfadd mm6, mm7 ; mm0=(10 ** 11 **) pfadd mm1, mm7 ; mm4=(12 ** 13 **) pfadd mm3, mm7 ; mm0=(14 ** 15 **) pfadd mm4, mm7 ; mm4=(16 ** 17 **) movq mm5, mm6 punpcklwd mm6, mm1 ; mm6=(10 12 ** **) punpckhwd mm5, mm1 ; mm5=(11 13 ** **) movq mm1, mm3 punpcklwd mm3, mm4 ; mm3=(14 16 ** **) punpckhwd mm1, mm4 ; mm1=(15 17 ** **) punpcklwd mm6, mm5 ; mm6=(10 11 12 13) punpcklwd mm3, mm1 ; mm3=(14 15 16 17) movq MMWORD [MMBLOCK(0,0,edi,SIZEOF_JCOEF)], mm0 movq MMWORD [MMBLOCK(0,1,edi,SIZEOF_JCOEF)], mm2 movq MMWORD [MMBLOCK(1,0,edi,SIZEOF_JCOEF)], mm6 movq MMWORD [MMBLOCK(1,1,edi,SIZEOF_JCOEF)], mm3 add esi, byte 16*SIZEOF_FAST_FLOAT add edx, byte 16*SIZEOF_FAST_FLOAT add edi, byte 16*SIZEOF_JCOEF dec eax jnz near .quantloop femms ; empty MMX/3DNow! state pop edi pop esi ; pop edx ; need not be preserved ; pop ecx ; unused ; pop ebx ; unused pop ebp ret ; For some reason, the OS X linker does not honor the request to align the ; segment unless we do this. align 32