From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- media/libjpeg/simd/i386/jidctint-mmx.asm | 851 +++++++++++++++++++++++++++++++ 1 file changed, 851 insertions(+) create mode 100644 media/libjpeg/simd/i386/jidctint-mmx.asm (limited to 'media/libjpeg/simd/i386/jidctint-mmx.asm') diff --git a/media/libjpeg/simd/i386/jidctint-mmx.asm b/media/libjpeg/simd/i386/jidctint-mmx.asm new file mode 100644 index 0000000000..f15c8d34bc --- /dev/null +++ b/media/libjpeg/simd/i386/jidctint-mmx.asm @@ -0,0 +1,851 @@ +; +; jidctint.asm - accurate integer IDCT (MMX) +; +; Copyright 2009 Pierre Ossman for Cendio AB +; Copyright (C) 2016, 2020, 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 a slower but more accurate integer implementation of the +; inverse DCT (Discrete Cosine Transform). The following code is based +; directly on the IJG's original jidctint.c; see the jidctint.c for +; more details. + +%include "jsimdext.inc" +%include "jdct.inc" + +; -------------------------------------------------------------------------- + +%define CONST_BITS 13 +%define PASS1_BITS 2 + +%define DESCALE_P1 (CONST_BITS - PASS1_BITS) +%define DESCALE_P2 (CONST_BITS + PASS1_BITS + 3) + +%if CONST_BITS == 13 +F_0_298 equ 2446 ; FIX(0.298631336) +F_0_390 equ 3196 ; FIX(0.390180644) +F_0_541 equ 4433 ; FIX(0.541196100) +F_0_765 equ 6270 ; FIX(0.765366865) +F_0_899 equ 7373 ; FIX(0.899976223) +F_1_175 equ 9633 ; FIX(1.175875602) +F_1_501 equ 12299 ; FIX(1.501321110) +F_1_847 equ 15137 ; FIX(1.847759065) +F_1_961 equ 16069 ; FIX(1.961570560) +F_2_053 equ 16819 ; FIX(2.053119869) +F_2_562 equ 20995 ; FIX(2.562915447) +F_3_072 equ 25172 ; FIX(3.072711026) +%else +; NASM cannot do compile-time arithmetic on floating-point constants. +%define DESCALE(x, n) (((x) + (1 << ((n) - 1))) >> (n)) +F_0_298 equ DESCALE( 320652955, 30 - CONST_BITS) ; FIX(0.298631336) +F_0_390 equ DESCALE( 418953276, 30 - CONST_BITS) ; FIX(0.390180644) +F_0_541 equ DESCALE( 581104887, 30 - CONST_BITS) ; FIX(0.541196100) +F_0_765 equ DESCALE( 821806413, 30 - CONST_BITS) ; FIX(0.765366865) +F_0_899 equ DESCALE( 966342111, 30 - CONST_BITS) ; FIX(0.899976223) +F_1_175 equ DESCALE(1262586813, 30 - CONST_BITS) ; FIX(1.175875602) +F_1_501 equ DESCALE(1612031267, 30 - CONST_BITS) ; FIX(1.501321110) +F_1_847 equ DESCALE(1984016188, 30 - CONST_BITS) ; FIX(1.847759065) +F_1_961 equ DESCALE(2106220350, 30 - CONST_BITS) ; FIX(1.961570560) +F_2_053 equ DESCALE(2204520673, 30 - CONST_BITS) ; FIX(2.053119869) +F_2_562 equ DESCALE(2751909506, 30 - CONST_BITS) ; FIX(2.562915447) +F_3_072 equ DESCALE(3299298341, 30 - CONST_BITS) ; FIX(3.072711026) +%endif + +; -------------------------------------------------------------------------- + SECTION SEG_CONST + + alignz 32 + GLOBAL_DATA(jconst_idct_islow_mmx) + +EXTN(jconst_idct_islow_mmx): + +PW_F130_F054 times 2 dw (F_0_541 + F_0_765), F_0_541 +PW_F054_MF130 times 2 dw F_0_541, (F_0_541 - F_1_847) +PW_MF078_F117 times 2 dw (F_1_175 - F_1_961), F_1_175 +PW_F117_F078 times 2 dw F_1_175, (F_1_175 - F_0_390) +PW_MF060_MF089 times 2 dw (F_0_298 - F_0_899), -F_0_899 +PW_MF089_F060 times 2 dw -F_0_899, (F_1_501 - F_0_899) +PW_MF050_MF256 times 2 dw (F_2_053 - F_2_562), -F_2_562 +PW_MF256_F050 times 2 dw -F_2_562, (F_3_072 - F_2_562) +PD_DESCALE_P1 times 2 dd 1 << (DESCALE_P1 - 1) +PD_DESCALE_P2 times 2 dd 1 << (DESCALE_P2 - 1) +PB_CENTERJSAMP times 8 db CENTERJSAMPLE + + alignz 32 + +; -------------------------------------------------------------------------- + SECTION SEG_TEXT + BITS 32 +; +; Perform dequantization and inverse DCT on one block of coefficients. +; +; GLOBAL(void) +; jsimd_idct_islow_mmx(void *dct_table, JCOEFPTR coef_block, +; JSAMPARRAY output_buf, JDIMENSION output_col) +; + +%define dct_table(b) (b) + 8 ; jpeg_component_info *compptr +%define coef_block(b) (b) + 12 ; JCOEFPTR coef_block +%define output_buf(b) (b) + 16 ; JSAMPARRAY output_buf +%define output_col(b) (b) + 20 ; JDIMENSION output_col + +%define original_ebp ebp + 0 +%define wk(i) ebp - (WK_NUM - (i)) * SIZEOF_MMWORD + ; mmword wk[WK_NUM] +%define WK_NUM 12 +%define workspace wk(0) - DCTSIZE2 * SIZEOF_JCOEF + ; JCOEF workspace[DCTSIZE2] + + align 32 + GLOBAL_FUNCTION(jsimd_idct_islow_mmx) + +EXTN(jsimd_idct_islow_mmx): + 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, [workspace] + push ebx +; push ecx ; need not be preserved +; push edx ; need not be preserved + push esi + push edi + + get_GOT ebx ; get GOT address + + ; ---- Pass 1: process columns from input, store into work array. + +; mov eax, [original_ebp] + mov edx, POINTER [dct_table(eax)] ; quantptr + mov esi, JCOEFPTR [coef_block(eax)] ; inptr + lea edi, [workspace] ; JCOEF *wsptr + mov ecx, DCTSIZE/4 ; ctr + alignx 16, 7 +.columnloop: +%ifndef NO_ZERO_COLUMN_TEST_ISLOW_MMX + mov eax, dword [DWBLOCK(1,0,esi,SIZEOF_JCOEF)] + or eax, dword [DWBLOCK(2,0,esi,SIZEOF_JCOEF)] + jnz short .columnDCT + + movq mm0, MMWORD [MMBLOCK(1,0,esi,SIZEOF_JCOEF)] + movq mm1, MMWORD [MMBLOCK(2,0,esi,SIZEOF_JCOEF)] + por mm0, MMWORD [MMBLOCK(3,0,esi,SIZEOF_JCOEF)] + por mm1, MMWORD [MMBLOCK(4,0,esi,SIZEOF_JCOEF)] + por mm0, MMWORD [MMBLOCK(5,0,esi,SIZEOF_JCOEF)] + por mm1, MMWORD [MMBLOCK(6,0,esi,SIZEOF_JCOEF)] + por mm0, MMWORD [MMBLOCK(7,0,esi,SIZEOF_JCOEF)] + por mm1, mm0 + packsswb mm1, mm1 + movd eax, mm1 + test eax, eax + jnz short .columnDCT + + ; -- AC terms all zero + + movq mm0, MMWORD [MMBLOCK(0,0,esi,SIZEOF_JCOEF)] + pmullw mm0, MMWORD [MMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + + psllw mm0, PASS1_BITS + + movq mm2, mm0 ; mm0=in0=(00 01 02 03) + punpcklwd mm0, mm0 ; mm0=(00 00 01 01) + punpckhwd mm2, mm2 ; mm2=(02 02 03 03) + + movq mm1, mm0 + punpckldq mm0, mm0 ; mm0=(00 00 00 00) + punpckhdq mm1, mm1 ; mm1=(01 01 01 01) + movq mm3, mm2 + punpckldq mm2, mm2 ; mm2=(02 02 02 02) + punpckhdq mm3, mm3 ; mm3=(03 03 03 03) + + movq MMWORD [MMBLOCK(0,0,edi,SIZEOF_JCOEF)], mm0 + movq MMWORD [MMBLOCK(0,1,edi,SIZEOF_JCOEF)], mm0 + movq MMWORD [MMBLOCK(1,0,edi,SIZEOF_JCOEF)], mm1 + movq MMWORD [MMBLOCK(1,1,edi,SIZEOF_JCOEF)], mm1 + movq MMWORD [MMBLOCK(2,0,edi,SIZEOF_JCOEF)], mm2 + movq MMWORD [MMBLOCK(2,1,edi,SIZEOF_JCOEF)], mm2 + movq MMWORD [MMBLOCK(3,0,edi,SIZEOF_JCOEF)], mm3 + movq MMWORD [MMBLOCK(3,1,edi,SIZEOF_JCOEF)], mm3 + jmp near .nextcolumn + alignx 16, 7 +%endif +.columnDCT: + + ; -- Even part + + movq mm0, MMWORD [MMBLOCK(0,0,esi,SIZEOF_JCOEF)] + movq mm1, MMWORD [MMBLOCK(2,0,esi,SIZEOF_JCOEF)] + pmullw mm0, MMWORD [MMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + pmullw mm1, MMWORD [MMBLOCK(2,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + movq mm2, MMWORD [MMBLOCK(4,0,esi,SIZEOF_JCOEF)] + movq mm3, MMWORD [MMBLOCK(6,0,esi,SIZEOF_JCOEF)] + pmullw mm2, MMWORD [MMBLOCK(4,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + pmullw mm3, MMWORD [MMBLOCK(6,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + + ; (Original) + ; z1 = (z2 + z3) * 0.541196100; + ; tmp2 = z1 + z3 * -1.847759065; + ; tmp3 = z1 + z2 * 0.765366865; + ; + ; (This implementation) + ; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065); + ; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100; + + movq mm4, mm1 ; mm1=in2=z2 + movq mm5, mm1 + punpcklwd mm4, mm3 ; mm3=in6=z3 + punpckhwd mm5, mm3 + movq mm1, mm4 + movq mm3, mm5 + pmaddwd mm4, [GOTOFF(ebx,PW_F130_F054)] ; mm4=tmp3L + pmaddwd mm5, [GOTOFF(ebx,PW_F130_F054)] ; mm5=tmp3H + pmaddwd mm1, [GOTOFF(ebx,PW_F054_MF130)] ; mm1=tmp2L + pmaddwd mm3, [GOTOFF(ebx,PW_F054_MF130)] ; mm3=tmp2H + + movq mm6, mm0 + paddw mm0, mm2 ; mm0=in0+in4 + psubw mm6, mm2 ; mm6=in0-in4 + + pxor mm7, mm7 + pxor mm2, mm2 + punpcklwd mm7, mm0 ; mm7=tmp0L + punpckhwd mm2, mm0 ; mm2=tmp0H + psrad mm7, (16-CONST_BITS) ; psrad mm7,16 & pslld mm7,CONST_BITS + psrad mm2, (16-CONST_BITS) ; psrad mm2,16 & pslld mm2,CONST_BITS + + movq mm0, mm7 + paddd mm7, mm4 ; mm7=tmp10L + psubd mm0, mm4 ; mm0=tmp13L + movq mm4, mm2 + paddd mm2, mm5 ; mm2=tmp10H + psubd mm4, mm5 ; mm4=tmp13H + + movq MMWORD [wk(0)], mm7 ; wk(0)=tmp10L + movq MMWORD [wk(1)], mm2 ; wk(1)=tmp10H + movq MMWORD [wk(2)], mm0 ; wk(2)=tmp13L + movq MMWORD [wk(3)], mm4 ; wk(3)=tmp13H + + pxor mm5, mm5 + pxor mm7, mm7 + punpcklwd mm5, mm6 ; mm5=tmp1L + punpckhwd mm7, mm6 ; mm7=tmp1H + psrad mm5, (16-CONST_BITS) ; psrad mm5,16 & pslld mm5,CONST_BITS + psrad mm7, (16-CONST_BITS) ; psrad mm7,16 & pslld mm7,CONST_BITS + + movq mm2, mm5 + paddd mm5, mm1 ; mm5=tmp11L + psubd mm2, mm1 ; mm2=tmp12L + movq mm0, mm7 + paddd mm7, mm3 ; mm7=tmp11H + psubd mm0, mm3 ; mm0=tmp12H + + movq MMWORD [wk(4)], mm5 ; wk(4)=tmp11L + movq MMWORD [wk(5)], mm7 ; wk(5)=tmp11H + movq MMWORD [wk(6)], mm2 ; wk(6)=tmp12L + movq MMWORD [wk(7)], mm0 ; wk(7)=tmp12H + + ; -- Odd part + + movq mm4, MMWORD [MMBLOCK(1,0,esi,SIZEOF_JCOEF)] + movq mm6, MMWORD [MMBLOCK(3,0,esi,SIZEOF_JCOEF)] + pmullw mm4, MMWORD [MMBLOCK(1,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + pmullw mm6, MMWORD [MMBLOCK(3,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + movq mm1, MMWORD [MMBLOCK(5,0,esi,SIZEOF_JCOEF)] + movq mm3, MMWORD [MMBLOCK(7,0,esi,SIZEOF_JCOEF)] + pmullw mm1, MMWORD [MMBLOCK(5,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + pmullw mm3, MMWORD [MMBLOCK(7,0,edx,SIZEOF_ISLOW_MULT_TYPE)] + + movq mm5, mm6 + movq mm7, mm4 + paddw mm5, mm3 ; mm5=z3 + paddw mm7, mm1 ; mm7=z4 + + ; (Original) + ; z5 = (z3 + z4) * 1.175875602; + ; z3 = z3 * -1.961570560; z4 = z4 * -0.390180644; + ; z3 += z5; z4 += z5; + ; + ; (This implementation) + ; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602; + ; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644); + + movq mm2, mm5 + movq mm0, mm5 + punpcklwd mm2, mm7 + punpckhwd mm0, mm7 + movq mm5, mm2 + movq mm7, mm0 + pmaddwd mm2, [GOTOFF(ebx,PW_MF078_F117)] ; mm2=z3L + pmaddwd mm0, [GOTOFF(ebx,PW_MF078_F117)] ; mm0=z3H + pmaddwd mm5, [GOTOFF(ebx,PW_F117_F078)] ; mm5=z4L + pmaddwd mm7, [GOTOFF(ebx,PW_F117_F078)] ; mm7=z4H + + movq MMWORD [wk(10)], mm2 ; wk(10)=z3L + movq MMWORD [wk(11)], mm0 ; wk(11)=z3H + + ; (Original) + ; z1 = tmp0 + tmp3; z2 = tmp1 + tmp2; + ; tmp0 = tmp0 * 0.298631336; tmp1 = tmp1 * 2.053119869; + ; tmp2 = tmp2 * 3.072711026; tmp3 = tmp3 * 1.501321110; + ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447; + ; tmp0 += z1 + z3; tmp1 += z2 + z4; + ; tmp2 += z2 + z3; tmp3 += z1 + z4; + ; + ; (This implementation) + ; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223; + ; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447; + ; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447); + ; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223); + ; tmp0 += z3; tmp1 += z4; + ; tmp2 += z3; tmp3 += z4; + + movq mm2, mm3 + movq mm0, mm3 + punpcklwd mm2, mm4 + punpckhwd mm0, mm4 + movq mm3, mm2 + movq mm4, mm0 + pmaddwd mm2, [GOTOFF(ebx,PW_MF060_MF089)] ; mm2=tmp0L + pmaddwd mm0, [GOTOFF(ebx,PW_MF060_MF089)] ; mm0=tmp0H + pmaddwd mm3, [GOTOFF(ebx,PW_MF089_F060)] ; mm3=tmp3L + pmaddwd mm4, [GOTOFF(ebx,PW_MF089_F060)] ; mm4=tmp3H + + paddd mm2, MMWORD [wk(10)] ; mm2=tmp0L + paddd mm0, MMWORD [wk(11)] ; mm0=tmp0H + paddd mm3, mm5 ; mm3=tmp3L + paddd mm4, mm7 ; mm4=tmp3H + + movq MMWORD [wk(8)], mm2 ; wk(8)=tmp0L + movq MMWORD [wk(9)], mm0 ; wk(9)=tmp0H + + movq mm2, mm1 + movq mm0, mm1 + punpcklwd mm2, mm6 + punpckhwd mm0, mm6 + movq mm1, mm2 + movq mm6, mm0 + pmaddwd mm2, [GOTOFF(ebx,PW_MF050_MF256)] ; mm2=tmp1L + pmaddwd mm0, [GOTOFF(ebx,PW_MF050_MF256)] ; mm0=tmp1H + pmaddwd mm1, [GOTOFF(ebx,PW_MF256_F050)] ; mm1=tmp2L + pmaddwd mm6, [GOTOFF(ebx,PW_MF256_F050)] ; mm6=tmp2H + + paddd mm2, mm5 ; mm2=tmp1L + paddd mm0, mm7 ; mm0=tmp1H + paddd mm1, MMWORD [wk(10)] ; mm1=tmp2L + paddd mm6, MMWORD [wk(11)] ; mm6=tmp2H + + movq MMWORD [wk(10)], mm2 ; wk(10)=tmp1L + movq MMWORD [wk(11)], mm0 ; wk(11)=tmp1H + + ; -- Final output stage + + movq mm5, MMWORD [wk(0)] ; mm5=tmp10L + movq mm7, MMWORD [wk(1)] ; mm7=tmp10H + + movq mm2, mm5 + movq mm0, mm7 + paddd mm5, mm3 ; mm5=data0L + paddd mm7, mm4 ; mm7=data0H + psubd mm2, mm3 ; mm2=data7L + psubd mm0, mm4 ; mm0=data7H + + movq mm3, [GOTOFF(ebx,PD_DESCALE_P1)] ; mm3=[PD_DESCALE_P1] + + paddd mm5, mm3 + paddd mm7, mm3 + psrad mm5, DESCALE_P1 + psrad mm7, DESCALE_P1 + paddd mm2, mm3 + paddd mm0, mm3 + psrad mm2, DESCALE_P1 + psrad mm0, DESCALE_P1 + + packssdw mm5, mm7 ; mm5=data0=(00 01 02 03) + packssdw mm2, mm0 ; mm2=data7=(70 71 72 73) + + movq mm4, MMWORD [wk(4)] ; mm4=tmp11L + movq mm3, MMWORD [wk(5)] ; mm3=tmp11H + + movq mm7, mm4 + movq mm0, mm3 + paddd mm4, mm1 ; mm4=data1L + paddd mm3, mm6 ; mm3=data1H + psubd mm7, mm1 ; mm7=data6L + psubd mm0, mm6 ; mm0=data6H + + movq mm1, [GOTOFF(ebx,PD_DESCALE_P1)] ; mm1=[PD_DESCALE_P1] + + paddd mm4, mm1 + paddd mm3, mm1 + psrad mm4, DESCALE_P1 + psrad mm3, DESCALE_P1 + paddd mm7, mm1 + paddd mm0, mm1 + psrad mm7, DESCALE_P1 + psrad mm0, DESCALE_P1 + + packssdw mm4, mm3 ; mm4=data1=(10 11 12 13) + packssdw mm7, mm0 ; mm7=data6=(60 61 62 63) + + movq mm6, mm5 ; transpose coefficients(phase 1) + punpcklwd mm5, mm4 ; mm5=(00 10 01 11) + punpckhwd mm6, mm4 ; mm6=(02 12 03 13) + movq mm1, mm7 ; transpose coefficients(phase 1) + punpcklwd mm7, mm2 ; mm7=(60 70 61 71) + punpckhwd mm1, mm2 ; mm1=(62 72 63 73) + + movq mm3, MMWORD [wk(6)] ; mm3=tmp12L + movq mm0, MMWORD [wk(7)] ; mm0=tmp12H + movq mm4, MMWORD [wk(10)] ; mm4=tmp1L + movq mm2, MMWORD [wk(11)] ; mm2=tmp1H + + movq MMWORD [wk(0)], mm5 ; wk(0)=(00 10 01 11) + movq MMWORD [wk(1)], mm6 ; wk(1)=(02 12 03 13) + movq MMWORD [wk(4)], mm7 ; wk(4)=(60 70 61 71) + movq MMWORD [wk(5)], mm1 ; wk(5)=(62 72 63 73) + + movq mm5, mm3 + movq mm6, mm0 + paddd mm3, mm4 ; mm3=data2L + paddd mm0, mm2 ; mm0=data2H + psubd mm5, mm4 ; mm5=data5L + psubd mm6, mm2 ; mm6=data5H + + movq mm7, [GOTOFF(ebx,PD_DESCALE_P1)] ; mm7=[PD_DESCALE_P1] + + paddd mm3, mm7 + paddd mm0, mm7 + psrad mm3, DESCALE_P1 + psrad mm0, DESCALE_P1 + paddd mm5, mm7 + paddd mm6, mm7 + psrad mm5, DESCALE_P1 + psrad mm6, DESCALE_P1 + + packssdw mm3, mm0 ; mm3=data2=(20 21 22 23) + packssdw mm5, mm6 ; mm5=data5=(50 51 52 53) + + movq mm1, MMWORD [wk(2)] ; mm1=tmp13L + movq mm4, MMWORD [wk(3)] ; mm4=tmp13H + movq mm2, MMWORD [wk(8)] ; mm2=tmp0L + movq mm7, MMWORD [wk(9)] ; mm7=tmp0H + + movq mm0, mm1 + movq mm6, mm4 + paddd mm1, mm2 ; mm1=data3L + paddd mm4, mm7 ; mm4=data3H + psubd mm0, mm2 ; mm0=data4L + psubd mm6, mm7 ; mm6=data4H + + movq mm2, [GOTOFF(ebx,PD_DESCALE_P1)] ; mm2=[PD_DESCALE_P1] + + paddd mm1, mm2 + paddd mm4, mm2 + psrad mm1, DESCALE_P1 + psrad mm4, DESCALE_P1 + paddd mm0, mm2 + paddd mm6, mm2 + psrad mm0, DESCALE_P1 + psrad mm6, DESCALE_P1 + + packssdw mm1, mm4 ; mm1=data3=(30 31 32 33) + packssdw mm0, mm6 ; mm0=data4=(40 41 42 43) + + movq mm7, MMWORD [wk(0)] ; mm7=(00 10 01 11) + movq mm2, MMWORD [wk(1)] ; mm2=(02 12 03 13) + + movq mm4, mm3 ; transpose coefficients(phase 1) + punpcklwd mm3, mm1 ; mm3=(20 30 21 31) + punpckhwd mm4, mm1 ; mm4=(22 32 23 33) + movq mm6, mm0 ; transpose coefficients(phase 1) + punpcklwd mm0, mm5 ; mm0=(40 50 41 51) + punpckhwd mm6, mm5 ; mm6=(42 52 43 53) + + movq mm1, mm7 ; transpose coefficients(phase 2) + punpckldq mm7, mm3 ; mm7=(00 10 20 30) + punpckhdq mm1, mm3 ; mm1=(01 11 21 31) + movq mm5, mm2 ; transpose coefficients(phase 2) + punpckldq mm2, mm4 ; mm2=(02 12 22 32) + punpckhdq mm5, mm4 ; mm5=(03 13 23 33) + + movq mm3, MMWORD [wk(4)] ; mm3=(60 70 61 71) + movq mm4, MMWORD [wk(5)] ; mm4=(62 72 63 73) + + movq MMWORD [MMBLOCK(0,0,edi,SIZEOF_JCOEF)], mm7 + movq MMWORD [MMBLOCK(1,0,edi,SIZEOF_JCOEF)], mm1 + movq MMWORD [MMBLOCK(2,0,edi,SIZEOF_JCOEF)], mm2 + movq MMWORD [MMBLOCK(3,0,edi,SIZEOF_JCOEF)], mm5 + + movq mm7, mm0 ; transpose coefficients(phase 2) + punpckldq mm0, mm3 ; mm0=(40 50 60 70) + punpckhdq mm7, mm3 ; mm7=(41 51 61 71) + movq mm1, mm6 ; transpose coefficients(phase 2) + punpckldq mm6, mm4 ; mm6=(42 52 62 72) + punpckhdq mm1, mm4 ; mm1=(43 53 63 73) + + movq MMWORD [MMBLOCK(0,1,edi,SIZEOF_JCOEF)], mm0 + movq MMWORD [MMBLOCK(1,1,edi,SIZEOF_JCOEF)], mm7 + movq MMWORD [MMBLOCK(2,1,edi,SIZEOF_JCOEF)], mm6 + movq MMWORD [MMBLOCK(3,1,edi,SIZEOF_JCOEF)], mm1 + +.nextcolumn: + add esi, byte 4*SIZEOF_JCOEF ; coef_block + add edx, byte 4*SIZEOF_ISLOW_MULT_TYPE ; quantptr + add edi, byte 4*DCTSIZE*SIZEOF_JCOEF ; wsptr + dec ecx ; ctr + jnz near .columnloop + + ; ---- Pass 2: process rows from work array, store into output array. + + mov eax, [original_ebp] + lea esi, [workspace] ; JCOEF *wsptr + mov edi, JSAMPARRAY [output_buf(eax)] ; (JSAMPROW *) + mov eax, JDIMENSION [output_col(eax)] + mov ecx, DCTSIZE/4 ; ctr + alignx 16, 7 +.rowloop: + + ; -- Even part + + movq mm0, MMWORD [MMBLOCK(0,0,esi,SIZEOF_JCOEF)] + movq mm1, MMWORD [MMBLOCK(2,0,esi,SIZEOF_JCOEF)] + movq mm2, MMWORD [MMBLOCK(4,0,esi,SIZEOF_JCOEF)] + movq mm3, MMWORD [MMBLOCK(6,0,esi,SIZEOF_JCOEF)] + + ; (Original) + ; z1 = (z2 + z3) * 0.541196100; + ; tmp2 = z1 + z3 * -1.847759065; + ; tmp3 = z1 + z2 * 0.765366865; + ; + ; (This implementation) + ; tmp2 = z2 * 0.541196100 + z3 * (0.541196100 - 1.847759065); + ; tmp3 = z2 * (0.541196100 + 0.765366865) + z3 * 0.541196100; + + movq mm4, mm1 ; mm1=in2=z2 + movq mm5, mm1 + punpcklwd mm4, mm3 ; mm3=in6=z3 + punpckhwd mm5, mm3 + movq mm1, mm4 + movq mm3, mm5 + pmaddwd mm4, [GOTOFF(ebx,PW_F130_F054)] ; mm4=tmp3L + pmaddwd mm5, [GOTOFF(ebx,PW_F130_F054)] ; mm5=tmp3H + pmaddwd mm1, [GOTOFF(ebx,PW_F054_MF130)] ; mm1=tmp2L + pmaddwd mm3, [GOTOFF(ebx,PW_F054_MF130)] ; mm3=tmp2H + + movq mm6, mm0 + paddw mm0, mm2 ; mm0=in0+in4 + psubw mm6, mm2 ; mm6=in0-in4 + + pxor mm7, mm7 + pxor mm2, mm2 + punpcklwd mm7, mm0 ; mm7=tmp0L + punpckhwd mm2, mm0 ; mm2=tmp0H + psrad mm7, (16-CONST_BITS) ; psrad mm7,16 & pslld mm7,CONST_BITS + psrad mm2, (16-CONST_BITS) ; psrad mm2,16 & pslld mm2,CONST_BITS + + movq mm0, mm7 + paddd mm7, mm4 ; mm7=tmp10L + psubd mm0, mm4 ; mm0=tmp13L + movq mm4, mm2 + paddd mm2, mm5 ; mm2=tmp10H + psubd mm4, mm5 ; mm4=tmp13H + + movq MMWORD [wk(0)], mm7 ; wk(0)=tmp10L + movq MMWORD [wk(1)], mm2 ; wk(1)=tmp10H + movq MMWORD [wk(2)], mm0 ; wk(2)=tmp13L + movq MMWORD [wk(3)], mm4 ; wk(3)=tmp13H + + pxor mm5, mm5 + pxor mm7, mm7 + punpcklwd mm5, mm6 ; mm5=tmp1L + punpckhwd mm7, mm6 ; mm7=tmp1H + psrad mm5, (16-CONST_BITS) ; psrad mm5,16 & pslld mm5,CONST_BITS + psrad mm7, (16-CONST_BITS) ; psrad mm7,16 & pslld mm7,CONST_BITS + + movq mm2, mm5 + paddd mm5, mm1 ; mm5=tmp11L + psubd mm2, mm1 ; mm2=tmp12L + movq mm0, mm7 + paddd mm7, mm3 ; mm7=tmp11H + psubd mm0, mm3 ; mm0=tmp12H + + movq MMWORD [wk(4)], mm5 ; wk(4)=tmp11L + movq MMWORD [wk(5)], mm7 ; wk(5)=tmp11H + movq MMWORD [wk(6)], mm2 ; wk(6)=tmp12L + movq MMWORD [wk(7)], mm0 ; wk(7)=tmp12H + + ; -- Odd part + + movq mm4, MMWORD [MMBLOCK(1,0,esi,SIZEOF_JCOEF)] + movq mm6, MMWORD [MMBLOCK(3,0,esi,SIZEOF_JCOEF)] + movq mm1, MMWORD [MMBLOCK(5,0,esi,SIZEOF_JCOEF)] + movq mm3, MMWORD [MMBLOCK(7,0,esi,SIZEOF_JCOEF)] + + movq mm5, mm6 + movq mm7, mm4 + paddw mm5, mm3 ; mm5=z3 + paddw mm7, mm1 ; mm7=z4 + + ; (Original) + ; z5 = (z3 + z4) * 1.175875602; + ; z3 = z3 * -1.961570560; z4 = z4 * -0.390180644; + ; z3 += z5; z4 += z5; + ; + ; (This implementation) + ; z3 = z3 * (1.175875602 - 1.961570560) + z4 * 1.175875602; + ; z4 = z3 * 1.175875602 + z4 * (1.175875602 - 0.390180644); + + movq mm2, mm5 + movq mm0, mm5 + punpcklwd mm2, mm7 + punpckhwd mm0, mm7 + movq mm5, mm2 + movq mm7, mm0 + pmaddwd mm2, [GOTOFF(ebx,PW_MF078_F117)] ; mm2=z3L + pmaddwd mm0, [GOTOFF(ebx,PW_MF078_F117)] ; mm0=z3H + pmaddwd mm5, [GOTOFF(ebx,PW_F117_F078)] ; mm5=z4L + pmaddwd mm7, [GOTOFF(ebx,PW_F117_F078)] ; mm7=z4H + + movq MMWORD [wk(10)], mm2 ; wk(10)=z3L + movq MMWORD [wk(11)], mm0 ; wk(11)=z3H + + ; (Original) + ; z1 = tmp0 + tmp3; z2 = tmp1 + tmp2; + ; tmp0 = tmp0 * 0.298631336; tmp1 = tmp1 * 2.053119869; + ; tmp2 = tmp2 * 3.072711026; tmp3 = tmp3 * 1.501321110; + ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447; + ; tmp0 += z1 + z3; tmp1 += z2 + z4; + ; tmp2 += z2 + z3; tmp3 += z1 + z4; + ; + ; (This implementation) + ; tmp0 = tmp0 * (0.298631336 - 0.899976223) + tmp3 * -0.899976223; + ; tmp1 = tmp1 * (2.053119869 - 2.562915447) + tmp2 * -2.562915447; + ; tmp2 = tmp1 * -2.562915447 + tmp2 * (3.072711026 - 2.562915447); + ; tmp3 = tmp0 * -0.899976223 + tmp3 * (1.501321110 - 0.899976223); + ; tmp0 += z3; tmp1 += z4; + ; tmp2 += z3; tmp3 += z4; + + movq mm2, mm3 + movq mm0, mm3 + punpcklwd mm2, mm4 + punpckhwd mm0, mm4 + movq mm3, mm2 + movq mm4, mm0 + pmaddwd mm2, [GOTOFF(ebx,PW_MF060_MF089)] ; mm2=tmp0L + pmaddwd mm0, [GOTOFF(ebx,PW_MF060_MF089)] ; mm0=tmp0H + pmaddwd mm3, [GOTOFF(ebx,PW_MF089_F060)] ; mm3=tmp3L + pmaddwd mm4, [GOTOFF(ebx,PW_MF089_F060)] ; mm4=tmp3H + + paddd mm2, MMWORD [wk(10)] ; mm2=tmp0L + paddd mm0, MMWORD [wk(11)] ; mm0=tmp0H + paddd mm3, mm5 ; mm3=tmp3L + paddd mm4, mm7 ; mm4=tmp3H + + movq MMWORD [wk(8)], mm2 ; wk(8)=tmp0L + movq MMWORD [wk(9)], mm0 ; wk(9)=tmp0H + + movq mm2, mm1 + movq mm0, mm1 + punpcklwd mm2, mm6 + punpckhwd mm0, mm6 + movq mm1, mm2 + movq mm6, mm0 + pmaddwd mm2, [GOTOFF(ebx,PW_MF050_MF256)] ; mm2=tmp1L + pmaddwd mm0, [GOTOFF(ebx,PW_MF050_MF256)] ; mm0=tmp1H + pmaddwd mm1, [GOTOFF(ebx,PW_MF256_F050)] ; mm1=tmp2L + pmaddwd mm6, [GOTOFF(ebx,PW_MF256_F050)] ; mm6=tmp2H + + paddd mm2, mm5 ; mm2=tmp1L + paddd mm0, mm7 ; mm0=tmp1H + paddd mm1, MMWORD [wk(10)] ; mm1=tmp2L + paddd mm6, MMWORD [wk(11)] ; mm6=tmp2H + + movq MMWORD [wk(10)], mm2 ; wk(10)=tmp1L + movq MMWORD [wk(11)], mm0 ; wk(11)=tmp1H + + ; -- Final output stage + + movq mm5, MMWORD [wk(0)] ; mm5=tmp10L + movq mm7, MMWORD [wk(1)] ; mm7=tmp10H + + movq mm2, mm5 + movq mm0, mm7 + paddd mm5, mm3 ; mm5=data0L + paddd mm7, mm4 ; mm7=data0H + psubd mm2, mm3 ; mm2=data7L + psubd mm0, mm4 ; mm0=data7H + + movq mm3, [GOTOFF(ebx,PD_DESCALE_P2)] ; mm3=[PD_DESCALE_P2] + + paddd mm5, mm3 + paddd mm7, mm3 + psrad mm5, DESCALE_P2 + psrad mm7, DESCALE_P2 + paddd mm2, mm3 + paddd mm0, mm3 + psrad mm2, DESCALE_P2 + psrad mm0, DESCALE_P2 + + packssdw mm5, mm7 ; mm5=data0=(00 10 20 30) + packssdw mm2, mm0 ; mm2=data7=(07 17 27 37) + + movq mm4, MMWORD [wk(4)] ; mm4=tmp11L + movq mm3, MMWORD [wk(5)] ; mm3=tmp11H + + movq mm7, mm4 + movq mm0, mm3 + paddd mm4, mm1 ; mm4=data1L + paddd mm3, mm6 ; mm3=data1H + psubd mm7, mm1 ; mm7=data6L + psubd mm0, mm6 ; mm0=data6H + + movq mm1, [GOTOFF(ebx,PD_DESCALE_P2)] ; mm1=[PD_DESCALE_P2] + + paddd mm4, mm1 + paddd mm3, mm1 + psrad mm4, DESCALE_P2 + psrad mm3, DESCALE_P2 + paddd mm7, mm1 + paddd mm0, mm1 + psrad mm7, DESCALE_P2 + psrad mm0, DESCALE_P2 + + packssdw mm4, mm3 ; mm4=data1=(01 11 21 31) + packssdw mm7, mm0 ; mm7=data6=(06 16 26 36) + + packsswb mm5, mm7 ; mm5=(00 10 20 30 06 16 26 36) + packsswb mm4, mm2 ; mm4=(01 11 21 31 07 17 27 37) + + movq mm6, MMWORD [wk(6)] ; mm6=tmp12L + movq mm1, MMWORD [wk(7)] ; mm1=tmp12H + movq mm3, MMWORD [wk(10)] ; mm3=tmp1L + movq mm0, MMWORD [wk(11)] ; mm0=tmp1H + + movq MMWORD [wk(0)], mm5 ; wk(0)=(00 10 20 30 06 16 26 36) + movq MMWORD [wk(1)], mm4 ; wk(1)=(01 11 21 31 07 17 27 37) + + movq mm7, mm6 + movq mm2, mm1 + paddd mm6, mm3 ; mm6=data2L + paddd mm1, mm0 ; mm1=data2H + psubd mm7, mm3 ; mm7=data5L + psubd mm2, mm0 ; mm2=data5H + + movq mm5, [GOTOFF(ebx,PD_DESCALE_P2)] ; mm5=[PD_DESCALE_P2] + + paddd mm6, mm5 + paddd mm1, mm5 + psrad mm6, DESCALE_P2 + psrad mm1, DESCALE_P2 + paddd mm7, mm5 + paddd mm2, mm5 + psrad mm7, DESCALE_P2 + psrad mm2, DESCALE_P2 + + packssdw mm6, mm1 ; mm6=data2=(02 12 22 32) + packssdw mm7, mm2 ; mm7=data5=(05 15 25 35) + + movq mm4, MMWORD [wk(2)] ; mm4=tmp13L + movq mm3, MMWORD [wk(3)] ; mm3=tmp13H + movq mm0, MMWORD [wk(8)] ; mm0=tmp0L + movq mm5, MMWORD [wk(9)] ; mm5=tmp0H + + movq mm1, mm4 + movq mm2, mm3 + paddd mm4, mm0 ; mm4=data3L + paddd mm3, mm5 ; mm3=data3H + psubd mm1, mm0 ; mm1=data4L + psubd mm2, mm5 ; mm2=data4H + + movq mm0, [GOTOFF(ebx,PD_DESCALE_P2)] ; mm0=[PD_DESCALE_P2] + + paddd mm4, mm0 + paddd mm3, mm0 + psrad mm4, DESCALE_P2 + psrad mm3, DESCALE_P2 + paddd mm1, mm0 + paddd mm2, mm0 + psrad mm1, DESCALE_P2 + psrad mm2, DESCALE_P2 + + movq mm5, [GOTOFF(ebx,PB_CENTERJSAMP)] ; mm5=[PB_CENTERJSAMP] + + packssdw mm4, mm3 ; mm4=data3=(03 13 23 33) + packssdw mm1, mm2 ; mm1=data4=(04 14 24 34) + + movq mm0, MMWORD [wk(0)] ; mm0=(00 10 20 30 06 16 26 36) + movq mm3, MMWORD [wk(1)] ; mm3=(01 11 21 31 07 17 27 37) + + packsswb mm6, mm1 ; mm6=(02 12 22 32 04 14 24 34) + packsswb mm4, mm7 ; mm4=(03 13 23 33 05 15 25 35) + + paddb mm0, mm5 + paddb mm3, mm5 + paddb mm6, mm5 + paddb mm4, mm5 + + movq mm2, mm0 ; transpose coefficients(phase 1) + punpcklbw mm0, mm3 ; mm0=(00 01 10 11 20 21 30 31) + punpckhbw mm2, mm3 ; mm2=(06 07 16 17 26 27 36 37) + movq mm1, mm6 ; transpose coefficients(phase 1) + punpcklbw mm6, mm4 ; mm6=(02 03 12 13 22 23 32 33) + punpckhbw mm1, mm4 ; mm1=(04 05 14 15 24 25 34 35) + + movq mm7, mm0 ; transpose coefficients(phase 2) + punpcklwd mm0, mm6 ; mm0=(00 01 02 03 10 11 12 13) + punpckhwd mm7, mm6 ; mm7=(20 21 22 23 30 31 32 33) + movq mm5, mm1 ; transpose coefficients(phase 2) + punpcklwd mm1, mm2 ; mm1=(04 05 06 07 14 15 16 17) + punpckhwd mm5, mm2 ; mm5=(24 25 26 27 34 35 36 37) + + movq mm3, mm0 ; transpose coefficients(phase 3) + punpckldq mm0, mm1 ; mm0=(00 01 02 03 04 05 06 07) + punpckhdq mm3, mm1 ; mm3=(10 11 12 13 14 15 16 17) + movq mm4, mm7 ; transpose coefficients(phase 3) + punpckldq mm7, mm5 ; mm7=(20 21 22 23 24 25 26 27) + punpckhdq mm4, mm5 ; mm4=(30 31 32 33 34 35 36 37) + + pushpic ebx ; save GOT address + + mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] + mov ebx, JSAMPROW [edi+1*SIZEOF_JSAMPROW] + movq MMWORD [edx+eax*SIZEOF_JSAMPLE], mm0 + movq MMWORD [ebx+eax*SIZEOF_JSAMPLE], mm3 + mov edx, JSAMPROW [edi+2*SIZEOF_JSAMPROW] + mov ebx, JSAMPROW [edi+3*SIZEOF_JSAMPROW] + movq MMWORD [edx+eax*SIZEOF_JSAMPLE], mm7 + movq MMWORD [ebx+eax*SIZEOF_JSAMPLE], mm4 + + poppic ebx ; restore GOT address + + add esi, byte 4*SIZEOF_JCOEF ; wsptr + add edi, byte 4*SIZEOF_JSAMPROW + dec ecx ; ctr + jnz near .rowloop + + emms ; empty MMX state + + pop edi + pop esi +; pop edx ; need not be preserved +; pop ecx ; need not be preserved + pop 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 -- cgit v1.2.3