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kc3-lang/libjpeg-turbo/simd/i386/jfdctflt-3dn.asm
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- simd/i386/jfdctflt-3dn.asm
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; ; Floating-point FDCT (32-bit 3DNow!) ; ; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB ; Copyright (C) 2016, 2024-2025, 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. ; ; This file contains a floating-point implementation of the forward DCT ; (Discrete Cosine Transform). The following code is based directly on the ; IJG's original jfdctflt.c; see jfdctflt.c for more details. %include "jsimdext.inc" %include "jdct.inc" ; -------------------------------------------------------------------------- SECTION SEG_CONST ALIGNZ 32 GLOBAL_DATA(jconst_fdct_float_3dnow) EXTN(jconst_fdct_float_3dnow): PD_0_382 times 2 dd 0.382683432365089771728460 PD_0_707 times 2 dd 0.707106781186547524400844 PD_0_541 times 2 dd 0.541196100146196984399723 PD_1_306 times 2 dd 1.306562964876376527856643 ALIGNZ 32 ; -------------------------------------------------------------------------- SECTION SEG_TEXT BITS 32 ; Perform the forward DCT on one block of samples. ; ; GLOBAL(void) ; jsimd_fdct_float_3dnow(FAST_FLOAT *data) %define data(b) (b) + 8 ; FAST_FLOAT *data %define original_ebp ebp + 0 %define wk(i) ebp - (WK_NUM - (i)) * SIZEOF_MMWORD ; mmword wk[WK_NUM] %define WK_NUM 2 align 32 GLOBAL_FUNCTION(jsimd_fdct_float_3dnow) EXTN(jsimd_fdct_float_3dnow): push ebp mov eax, esp ; eax = original ebp sub esp, byte 4 and esp, byte (-SIZEOF_MMWORD) ; align to 64 bits mov [esp], eax mov ebp, esp ; ebp = aligned ebp lea esp, [wk(0)] PUSHPIC ebx ; push ecx ; need not be preserved ; push edx ; need not be preserved ; push esi ; unused ; push edi ; unused GET_GOT ebx ; get GOT address ; ---- Pass 1: process rows. mov edx, POINTER [data(eax)] ; (FAST_FLOAT *) mov ecx, DCTSIZE / 2 ALIGNX 16, 7 .rowloop: movq mm0, MMWORD [MMBLOCK(0, 0, edx, SIZEOF_FAST_FLOAT)] movq mm1, MMWORD [MMBLOCK(1, 0, edx, SIZEOF_FAST_FLOAT)] movq mm2, MMWORD [MMBLOCK(0, 3, edx, SIZEOF_FAST_FLOAT)] movq mm3, MMWORD [MMBLOCK(1, 3, edx, SIZEOF_FAST_FLOAT)] ; mm0 = (00 01) ; mm1 = (10 11) ; mm2 = (06 07) ; mm3 = (16 17) movq mm4, mm0 ; transpose coefficients punpckldq mm0, mm1 ; mm0 = (00 10) = data0 punpckhdq mm4, mm1 ; mm4 = (01 11) = data1 movq mm5, mm2 ; transpose coefficients punpckldq mm2, mm3 ; mm2 = (06 16) = data6 punpckhdq mm5, mm3 ; mm5 = (07 17) = data7 movq mm6, mm4 movq mm7, mm0 pfsub mm4, mm2 ; mm4 = data1 - data6 = tmp6 pfsub mm0, mm5 ; mm0 = data0 - data7 = tmp7 pfadd mm6, mm2 ; mm6 = data1 + data6 = tmp1 pfadd mm7, mm5 ; mm7 = data0 + data7 = tmp0 movq mm1, MMWORD [MMBLOCK(0, 1, edx, SIZEOF_FAST_FLOAT)] movq mm3, MMWORD [MMBLOCK(1, 1, edx, SIZEOF_FAST_FLOAT)] movq mm2, MMWORD [MMBLOCK(0, 2, edx, SIZEOF_FAST_FLOAT)] movq mm5, MMWORD [MMBLOCK(1, 2, edx, SIZEOF_FAST_FLOAT)] ; mm1 = (02 03) ; mm3 = (12 13) ; mm2 = (04 05) ; mm5 = (14 15) movq MMWORD [wk(0)], mm4 ; wk(0) = tmp6 movq MMWORD [wk(1)], mm0 ; wk(1) = tmp7 movq mm4, mm1 ; transpose coefficients punpckldq mm1, mm3 ; mm1 = (02 12) = data2 punpckhdq mm4, mm3 ; mm4 = (03 13) = data3 movq mm0, mm2 ; transpose coefficients punpckldq mm2, mm5 ; mm2 = (04 14) = data4 punpckhdq mm0, mm5 ; mm0 = (05 15) = data5 movq mm3, mm4 movq mm5, mm1 pfadd mm4, mm2 ; mm4 = data3 + data4 = tmp3 pfadd mm1, mm0 ; mm1 = data2 + data5 = tmp2 pfsub mm3, mm2 ; mm3 = data3 - data4 = tmp4 pfsub mm5, mm0 ; mm5 = data2 - data5 = tmp5 ; -- Even part movq mm2, mm7 movq mm0, mm6 pfsub mm7, mm4 ; mm7 = tmp13 pfsub mm6, mm1 ; mm6 = tmp12 pfadd mm2, mm4 ; mm2 = tmp10 pfadd mm0, mm1 ; mm0 = tmp11 pfadd mm6, mm7 pfmul mm6, [GOTOFF(ebx, PD_0_707)] ; mm6 = z1 movq mm4, mm2 movq mm1, mm7 pfsub mm2, mm0 ; mm2 = data4 pfsub mm7, mm6 ; mm7 = data6 pfadd mm4, mm0 ; mm4 = data0 pfadd mm1, mm6 ; mm1 = data2 movq MMWORD [MMBLOCK(0, 2, edx, SIZEOF_FAST_FLOAT)], mm2 movq MMWORD [MMBLOCK(0, 3, edx, SIZEOF_FAST_FLOAT)], mm7 movq MMWORD [MMBLOCK(0, 0, edx, SIZEOF_FAST_FLOAT)], mm4 movq MMWORD [MMBLOCK(0, 1, edx, SIZEOF_FAST_FLOAT)], mm1 ; -- Odd part movq mm0, MMWORD [wk(0)] ; mm0 = tmp6 movq mm6, MMWORD [wk(1)] ; mm6 = tmp7 pfadd mm3, mm5 ; mm3 = tmp10 pfadd mm5, mm0 ; mm5 = tmp11 pfadd mm0, mm6 ; mm0 = tmp12, mm6 = tmp7 pfmul mm5, [GOTOFF(ebx, PD_0_707)] ; mm5 = z3 movq mm2, mm3 ; mm2 = tmp10 pfsub mm3, mm0 pfmul mm3, [GOTOFF(ebx, PD_0_382)] ; mm3 = z5 pfmul mm2, [GOTOFF(ebx, PD_0_541)] ; mm2 = MULTIPLY(tmp10, FIX_0_54119610) pfmul mm0, [GOTOFF(ebx, PD_1_306)] ; mm0 = MULTIPLY(tmp12, FIX_1_30656296) pfadd mm2, mm3 ; mm2 = z2 pfadd mm0, mm3 ; mm0 = z4 movq mm7, mm6 pfsub mm6, mm5 ; mm6 = z13 pfadd mm7, mm5 ; mm7 = z11 movq mm4, mm6 movq mm1, mm7 pfsub mm6, mm2 ; mm6 = data3 pfsub mm7, mm0 ; mm7 = data7 pfadd mm4, mm2 ; mm4 = data5 pfadd mm1, mm0 ; mm1 = data1 movq MMWORD [MMBLOCK(1, 1, edx, SIZEOF_FAST_FLOAT)], mm6 movq MMWORD [MMBLOCK(1, 3, edx, SIZEOF_FAST_FLOAT)], mm7 movq MMWORD [MMBLOCK(1, 2, edx, SIZEOF_FAST_FLOAT)], mm4 movq MMWORD [MMBLOCK(1, 0, edx, SIZEOF_FAST_FLOAT)], mm1 add edx, byte 2 * DCTSIZE * SIZEOF_FAST_FLOAT dec ecx jnz near .rowloop ; ---- Pass 2: process columns. mov edx, POINTER [data(eax)] ; (FAST_FLOAT *) mov ecx, DCTSIZE / 2 ALIGNX 16, 7 .columnloop: movq mm0, MMWORD [MMBLOCK(0, 0, edx, SIZEOF_FAST_FLOAT)] movq mm1, MMWORD [MMBLOCK(1, 0, edx, SIZEOF_FAST_FLOAT)] movq mm2, MMWORD [MMBLOCK(6, 0, edx, SIZEOF_FAST_FLOAT)] movq mm3, MMWORD [MMBLOCK(7, 0, edx, SIZEOF_FAST_FLOAT)] ; mm0 = (00 10) ; mm1 = (01 11) ; mm2 = (60 70) ; mm3 = (61 71) movq mm4, mm0 ; transpose coefficients punpckldq mm0, mm1 ; mm0 = (00 01) = data0 punpckhdq mm4, mm1 ; mm4 = (10 11) = data1 movq mm5, mm2 ; transpose coefficients punpckldq mm2, mm3 ; mm2 = (60 61) = data6 punpckhdq mm5, mm3 ; mm5 = (70 71) = data7 movq mm6, mm4 movq mm7, mm0 pfsub mm4, mm2 ; mm4 = data1 - data6 = tmp6 pfsub mm0, mm5 ; mm0 = data0 - data7 = tmp7 pfadd mm6, mm2 ; mm6 = data1 + data6 = tmp1 pfadd mm7, mm5 ; mm7 = data0 + data7 = tmp0 movq mm1, MMWORD [MMBLOCK(2, 0, edx, SIZEOF_FAST_FLOAT)] movq mm3, MMWORD [MMBLOCK(3, 0, edx, SIZEOF_FAST_FLOAT)] movq mm2, MMWORD [MMBLOCK(4, 0, edx, SIZEOF_FAST_FLOAT)] movq mm5, MMWORD [MMBLOCK(5, 0, edx, SIZEOF_FAST_FLOAT)] ; mm1 = (20 30) ; mm3 = (21 31) ; mm2 = (40 50) ; mm5 = (41 51) movq MMWORD [wk(0)], mm4 ; wk(0) = tmp6 movq MMWORD [wk(1)], mm0 ; wk(1) = tmp7 movq mm4, mm1 ; transpose coefficients punpckldq mm1, mm3 ; mm1 = (20 21) = data2 punpckhdq mm4, mm3 ; mm4 = (30 31) = data3 movq mm0, mm2 ; transpose coefficients punpckldq mm2, mm5 ; mm2 = (40 41) = data4 punpckhdq mm0, mm5 ; mm0 = (50 51) = data5 movq mm3, mm4 movq mm5, mm1 pfadd mm4, mm2 ; mm4 = data3 + data4 = tmp3 pfadd mm1, mm0 ; mm1 = data2 + data5 = tmp2 pfsub mm3, mm2 ; mm3 = data3 - data4 = tmp4 pfsub mm5, mm0 ; mm5 = data2 - data5 = tmp5 ; -- Even part movq mm2, mm7 movq mm0, mm6 pfsub mm7, mm4 ; mm7 = tmp13 pfsub mm6, mm1 ; mm6 = tmp12 pfadd mm2, mm4 ; mm2 = tmp10 pfadd mm0, mm1 ; mm0 = tmp11 pfadd mm6, mm7 pfmul mm6, [GOTOFF(ebx, PD_0_707)] ; mm6 = z1 movq mm4, mm2 movq mm1, mm7 pfsub mm2, mm0 ; mm2 = data4 pfsub mm7, mm6 ; mm7 = data6 pfadd mm4, mm0 ; mm4 = data0 pfadd mm1, mm6 ; mm1 = data2 movq MMWORD [MMBLOCK(4, 0, edx, SIZEOF_FAST_FLOAT)], mm2 movq MMWORD [MMBLOCK(6, 0, edx, SIZEOF_FAST_FLOAT)], mm7 movq MMWORD [MMBLOCK(0, 0, edx, SIZEOF_FAST_FLOAT)], mm4 movq MMWORD [MMBLOCK(2, 0, edx, SIZEOF_FAST_FLOAT)], mm1 ; -- Odd part movq mm0, MMWORD [wk(0)] ; mm0 = tmp6 movq mm6, MMWORD [wk(1)] ; mm6 = tmp7 pfadd mm3, mm5 ; mm3 = tmp10 pfadd mm5, mm0 ; mm5 = tmp11 pfadd mm0, mm6 ; mm0 = tmp12, mm6 = tmp7 pfmul mm5, [GOTOFF(ebx, PD_0_707)] ; mm5 = z3 movq mm2, mm3 ; mm2 = tmp10 pfsub mm3, mm0 pfmul mm3, [GOTOFF(ebx, PD_0_382)] ; mm3 = z5 pfmul mm2, [GOTOFF(ebx, PD_0_541)] ; mm2 = MULTIPLY(tmp10, FIX_0_54119610) pfmul mm0, [GOTOFF(ebx, PD_1_306)] ; mm0 = MULTIPLY(tmp12, FIX_1_30656296) pfadd mm2, mm3 ; mm2 = z2 pfadd mm0, mm3 ; mm0 = z4 movq mm7, mm6 pfsub mm6, mm5 ; mm6 = z13 pfadd mm7, mm5 ; mm7 = z11 movq mm4, mm6 movq mm1, mm7 pfsub mm6, mm2 ; mm6 = data3 pfsub mm7, mm0 ; mm7 = data7 pfadd mm4, mm2 ; mm4 = data5 pfadd mm1, mm0 ; mm1 = data1 movq MMWORD [MMBLOCK(3, 0, edx, SIZEOF_FAST_FLOAT)], mm6 movq MMWORD [MMBLOCK(7, 0, edx, SIZEOF_FAST_FLOAT)], mm7 movq MMWORD [MMBLOCK(5, 0, edx, SIZEOF_FAST_FLOAT)], mm4 movq MMWORD [MMBLOCK(1, 0, edx, SIZEOF_FAST_FLOAT)], mm1 add edx, byte 2 * SIZEOF_FAST_FLOAT dec ecx jnz near .columnloop femms ; empty MMX/3DNow! state ; pop edi ; unused ; pop esi ; unused ; pop edx ; need not be preserved ; pop ecx ; need not be preserved POPPIC ebx mov esp, ebp ; esp <- aligned ebp pop esp ; esp <- original ebp 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