summaryrefslogtreecommitdiffstats
path: root/media/libjpeg/simd/i386/jidctflt-sse2.asm
diff options
context:
space:
mode:
Diffstat (limited to 'media/libjpeg/simd/i386/jidctflt-sse2.asm')
-rw-r--r--media/libjpeg/simd/i386/jidctflt-sse2.asm497
1 files changed, 497 insertions, 0 deletions
diff --git a/media/libjpeg/simd/i386/jidctflt-sse2.asm b/media/libjpeg/simd/i386/jidctflt-sse2.asm
new file mode 100644
index 0000000000..c646eaef76
--- /dev/null
+++ b/media/libjpeg/simd/i386/jidctflt-sse2.asm
@@ -0,0 +1,497 @@
+;
+; jidctflt.asm - floating-point IDCT (SSE & SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+; Copyright (C) 2016, 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 floating-point implementation of the inverse DCT
+; (Discrete Cosine Transform). The following code is based directly on
+; the IJG's original jidctflt.c; see the jidctflt.c for more details.
+
+%include "jsimdext.inc"
+%include "jdct.inc"
+
+; --------------------------------------------------------------------------
+
+%macro unpcklps2 2 ; %1=(0 1 2 3) / %2=(4 5 6 7) => %1=(0 1 4 5)
+ shufps %1, %2, 0x44
+%endmacro
+
+%macro unpckhps2 2 ; %1=(0 1 2 3) / %2=(4 5 6 7) => %1=(2 3 6 7)
+ shufps %1, %2, 0xEE
+%endmacro
+
+; --------------------------------------------------------------------------
+ SECTION SEG_CONST
+
+ alignz 32
+ GLOBAL_DATA(jconst_idct_float_sse2)
+
+EXTN(jconst_idct_float_sse2):
+
+PD_1_414 times 4 dd 1.414213562373095048801689
+PD_1_847 times 4 dd 1.847759065022573512256366
+PD_1_082 times 4 dd 1.082392200292393968799446
+PD_M2_613 times 4 dd -2.613125929752753055713286
+PD_RNDINT_MAGIC times 4 dd 100663296.0 ; (float)(0x00C00000 << 3)
+PB_CENTERJSAMP times 16 db CENTERJSAMPLE
+
+ alignz 32
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Perform dequantization and inverse DCT on one block of coefficients.
+;
+; GLOBAL(void)
+; jsimd_idct_float_sse2(void *dct_table, JCOEFPTR coef_block,
+; JSAMPARRAY output_buf, JDIMENSION output_col)
+;
+
+%define dct_table(b) (b) + 8 ; void *dct_table
+%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_XMMWORD
+ ; xmmword wk[WK_NUM]
+%define WK_NUM 2
+%define workspace wk(0) - DCTSIZE2 * SIZEOF_FAST_FLOAT
+ ; FAST_FLOAT workspace[DCTSIZE2]
+
+ align 32
+ GLOBAL_FUNCTION(jsimd_idct_float_sse2)
+
+EXTN(jsimd_idct_float_sse2):
+ push ebp
+ mov eax, esp ; eax = original ebp
+ sub esp, byte 4
+ and esp, byte (-SIZEOF_XMMWORD) ; align to 128 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] ; FAST_FLOAT *wsptr
+ mov ecx, DCTSIZE/4 ; ctr
+ alignx 16, 7
+.columnloop:
+%ifndef NO_ZERO_COLUMN_TEST_FLOAT_SSE
+ mov eax, dword [DWBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ or eax, dword [DWBLOCK(2,0,esi,SIZEOF_JCOEF)]
+ jnz near .columnDCT
+
+ movq xmm1, XMM_MMWORD [MMBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ movq xmm2, XMM_MMWORD [MMBLOCK(2,0,esi,SIZEOF_JCOEF)]
+ movq xmm3, XMM_MMWORD [MMBLOCK(3,0,esi,SIZEOF_JCOEF)]
+ movq xmm4, XMM_MMWORD [MMBLOCK(4,0,esi,SIZEOF_JCOEF)]
+ movq xmm5, XMM_MMWORD [MMBLOCK(5,0,esi,SIZEOF_JCOEF)]
+ movq xmm6, XMM_MMWORD [MMBLOCK(6,0,esi,SIZEOF_JCOEF)]
+ movq xmm7, XMM_MMWORD [MMBLOCK(7,0,esi,SIZEOF_JCOEF)]
+ por xmm1, xmm2
+ por xmm3, xmm4
+ por xmm5, xmm6
+ por xmm1, xmm3
+ por xmm5, xmm7
+ por xmm1, xmm5
+ packsswb xmm1, xmm1
+ movd eax, xmm1
+ test eax, eax
+ jnz short .columnDCT
+
+ ; -- AC terms all zero
+
+ movq xmm0, XMM_MMWORD [MMBLOCK(0,0,esi,SIZEOF_JCOEF)]
+
+ punpcklwd xmm0, xmm0 ; xmm0=(00 00 01 01 02 02 03 03)
+ psrad xmm0, (DWORD_BIT-WORD_BIT) ; xmm0=in0=(00 01 02 03)
+ cvtdq2ps xmm0, xmm0 ; xmm0=in0=(00 01 02 03)
+
+ mulps xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
+
+ movaps xmm1, xmm0
+ movaps xmm2, xmm0
+ movaps xmm3, xmm0
+
+ shufps xmm0, xmm0, 0x00 ; xmm0=(00 00 00 00)
+ shufps xmm1, xmm1, 0x55 ; xmm1=(01 01 01 01)
+ shufps xmm2, xmm2, 0xAA ; xmm2=(02 02 02 02)
+ shufps xmm3, xmm3, 0xFF ; xmm3=(03 03 03 03)
+
+ movaps XMMWORD [XMMBLOCK(0,0,edi,SIZEOF_FAST_FLOAT)], xmm0
+ movaps XMMWORD [XMMBLOCK(0,1,edi,SIZEOF_FAST_FLOAT)], xmm0
+ movaps XMMWORD [XMMBLOCK(1,0,edi,SIZEOF_FAST_FLOAT)], xmm1
+ movaps XMMWORD [XMMBLOCK(1,1,edi,SIZEOF_FAST_FLOAT)], xmm1
+ movaps XMMWORD [XMMBLOCK(2,0,edi,SIZEOF_FAST_FLOAT)], xmm2
+ movaps XMMWORD [XMMBLOCK(2,1,edi,SIZEOF_FAST_FLOAT)], xmm2
+ movaps XMMWORD [XMMBLOCK(3,0,edi,SIZEOF_FAST_FLOAT)], xmm3
+ movaps XMMWORD [XMMBLOCK(3,1,edi,SIZEOF_FAST_FLOAT)], xmm3
+ jmp near .nextcolumn
+ alignx 16, 7
+%endif
+.columnDCT:
+
+ ; -- Even part
+
+ movq xmm0, XMM_MMWORD [MMBLOCK(0,0,esi,SIZEOF_JCOEF)]
+ movq xmm1, XMM_MMWORD [MMBLOCK(2,0,esi,SIZEOF_JCOEF)]
+ movq xmm2, XMM_MMWORD [MMBLOCK(4,0,esi,SIZEOF_JCOEF)]
+ movq xmm3, XMM_MMWORD [MMBLOCK(6,0,esi,SIZEOF_JCOEF)]
+
+ punpcklwd xmm0, xmm0 ; xmm0=(00 00 01 01 02 02 03 03)
+ punpcklwd xmm1, xmm1 ; xmm1=(20 20 21 21 22 22 23 23)
+ psrad xmm0, (DWORD_BIT-WORD_BIT) ; xmm0=in0=(00 01 02 03)
+ psrad xmm1, (DWORD_BIT-WORD_BIT) ; xmm1=in2=(20 21 22 23)
+ cvtdq2ps xmm0, xmm0 ; xmm0=in0=(00 01 02 03)
+ cvtdq2ps xmm1, xmm1 ; xmm1=in2=(20 21 22 23)
+
+ punpcklwd xmm2, xmm2 ; xmm2=(40 40 41 41 42 42 43 43)
+ punpcklwd xmm3, xmm3 ; xmm3=(60 60 61 61 62 62 63 63)
+ psrad xmm2, (DWORD_BIT-WORD_BIT) ; xmm2=in4=(40 41 42 43)
+ psrad xmm3, (DWORD_BIT-WORD_BIT) ; xmm3=in6=(60 61 62 63)
+ cvtdq2ps xmm2, xmm2 ; xmm2=in4=(40 41 42 43)
+ cvtdq2ps xmm3, xmm3 ; xmm3=in6=(60 61 62 63)
+
+ mulps xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
+ mulps xmm1, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
+ mulps xmm2, XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
+ mulps xmm3, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
+
+ movaps xmm4, xmm0
+ movaps xmm5, xmm1
+ subps xmm0, xmm2 ; xmm0=tmp11
+ subps xmm1, xmm3
+ addps xmm4, xmm2 ; xmm4=tmp10
+ addps xmm5, xmm3 ; xmm5=tmp13
+
+ mulps xmm1, [GOTOFF(ebx,PD_1_414)]
+ subps xmm1, xmm5 ; xmm1=tmp12
+
+ movaps xmm6, xmm4
+ movaps xmm7, xmm0
+ subps xmm4, xmm5 ; xmm4=tmp3
+ subps xmm0, xmm1 ; xmm0=tmp2
+ addps xmm6, xmm5 ; xmm6=tmp0
+ addps xmm7, xmm1 ; xmm7=tmp1
+
+ movaps XMMWORD [wk(1)], xmm4 ; tmp3
+ movaps XMMWORD [wk(0)], xmm0 ; tmp2
+
+ ; -- Odd part
+
+ movq xmm2, XMM_MMWORD [MMBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ movq xmm3, XMM_MMWORD [MMBLOCK(3,0,esi,SIZEOF_JCOEF)]
+ movq xmm5, XMM_MMWORD [MMBLOCK(5,0,esi,SIZEOF_JCOEF)]
+ movq xmm1, XMM_MMWORD [MMBLOCK(7,0,esi,SIZEOF_JCOEF)]
+
+ punpcklwd xmm2, xmm2 ; xmm2=(10 10 11 11 12 12 13 13)
+ punpcklwd xmm3, xmm3 ; xmm3=(30 30 31 31 32 32 33 33)
+ psrad xmm2, (DWORD_BIT-WORD_BIT) ; xmm2=in1=(10 11 12 13)
+ psrad xmm3, (DWORD_BIT-WORD_BIT) ; xmm3=in3=(30 31 32 33)
+ cvtdq2ps xmm2, xmm2 ; xmm2=in1=(10 11 12 13)
+ cvtdq2ps xmm3, xmm3 ; xmm3=in3=(30 31 32 33)
+
+ punpcklwd xmm5, xmm5 ; xmm5=(50 50 51 51 52 52 53 53)
+ punpcklwd xmm1, xmm1 ; xmm1=(70 70 71 71 72 72 73 73)
+ psrad xmm5, (DWORD_BIT-WORD_BIT) ; xmm5=in5=(50 51 52 53)
+ psrad xmm1, (DWORD_BIT-WORD_BIT) ; xmm1=in7=(70 71 72 73)
+ cvtdq2ps xmm5, xmm5 ; xmm5=in5=(50 51 52 53)
+ cvtdq2ps xmm1, xmm1 ; xmm1=in7=(70 71 72 73)
+
+ mulps xmm2, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
+ mulps xmm3, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
+ mulps xmm5, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
+ mulps xmm1, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_FLOAT_MULT_TYPE)]
+
+ movaps xmm4, xmm2
+ movaps xmm0, xmm5
+ addps xmm2, xmm1 ; xmm2=z11
+ addps xmm5, xmm3 ; xmm5=z13
+ subps xmm4, xmm1 ; xmm4=z12
+ subps xmm0, xmm3 ; xmm0=z10
+
+ movaps xmm1, xmm2
+ subps xmm2, xmm5
+ addps xmm1, xmm5 ; xmm1=tmp7
+
+ mulps xmm2, [GOTOFF(ebx,PD_1_414)] ; xmm2=tmp11
+
+ movaps xmm3, xmm0
+ addps xmm0, xmm4
+ mulps xmm0, [GOTOFF(ebx,PD_1_847)] ; xmm0=z5
+ mulps xmm3, [GOTOFF(ebx,PD_M2_613)] ; xmm3=(z10 * -2.613125930)
+ mulps xmm4, [GOTOFF(ebx,PD_1_082)] ; xmm4=(z12 * 1.082392200)
+ addps xmm3, xmm0 ; xmm3=tmp12
+ subps xmm4, xmm0 ; xmm4=tmp10
+
+ ; -- Final output stage
+
+ subps xmm3, xmm1 ; xmm3=tmp6
+ movaps xmm5, xmm6
+ movaps xmm0, xmm7
+ addps xmm6, xmm1 ; xmm6=data0=(00 01 02 03)
+ addps xmm7, xmm3 ; xmm7=data1=(10 11 12 13)
+ subps xmm5, xmm1 ; xmm5=data7=(70 71 72 73)
+ subps xmm0, xmm3 ; xmm0=data6=(60 61 62 63)
+ subps xmm2, xmm3 ; xmm2=tmp5
+
+ movaps xmm1, xmm6 ; transpose coefficients(phase 1)
+ unpcklps xmm6, xmm7 ; xmm6=(00 10 01 11)
+ unpckhps xmm1, xmm7 ; xmm1=(02 12 03 13)
+ movaps xmm3, xmm0 ; transpose coefficients(phase 1)
+ unpcklps xmm0, xmm5 ; xmm0=(60 70 61 71)
+ unpckhps xmm3, xmm5 ; xmm3=(62 72 63 73)
+
+ movaps xmm7, XMMWORD [wk(0)] ; xmm7=tmp2
+ movaps xmm5, XMMWORD [wk(1)] ; xmm5=tmp3
+
+ movaps XMMWORD [wk(0)], xmm0 ; wk(0)=(60 70 61 71)
+ movaps XMMWORD [wk(1)], xmm3 ; wk(1)=(62 72 63 73)
+
+ addps xmm4, xmm2 ; xmm4=tmp4
+ movaps xmm0, xmm7
+ movaps xmm3, xmm5
+ addps xmm7, xmm2 ; xmm7=data2=(20 21 22 23)
+ addps xmm5, xmm4 ; xmm5=data4=(40 41 42 43)
+ subps xmm0, xmm2 ; xmm0=data5=(50 51 52 53)
+ subps xmm3, xmm4 ; xmm3=data3=(30 31 32 33)
+
+ movaps xmm2, xmm7 ; transpose coefficients(phase 1)
+ unpcklps xmm7, xmm3 ; xmm7=(20 30 21 31)
+ unpckhps xmm2, xmm3 ; xmm2=(22 32 23 33)
+ movaps xmm4, xmm5 ; transpose coefficients(phase 1)
+ unpcklps xmm5, xmm0 ; xmm5=(40 50 41 51)
+ unpckhps xmm4, xmm0 ; xmm4=(42 52 43 53)
+
+ movaps xmm3, xmm6 ; transpose coefficients(phase 2)
+ unpcklps2 xmm6, xmm7 ; xmm6=(00 10 20 30)
+ unpckhps2 xmm3, xmm7 ; xmm3=(01 11 21 31)
+ movaps xmm0, xmm1 ; transpose coefficients(phase 2)
+ unpcklps2 xmm1, xmm2 ; xmm1=(02 12 22 32)
+ unpckhps2 xmm0, xmm2 ; xmm0=(03 13 23 33)
+
+ movaps xmm7, XMMWORD [wk(0)] ; xmm7=(60 70 61 71)
+ movaps xmm2, XMMWORD [wk(1)] ; xmm2=(62 72 63 73)
+
+ movaps XMMWORD [XMMBLOCK(0,0,edi,SIZEOF_FAST_FLOAT)], xmm6
+ movaps XMMWORD [XMMBLOCK(1,0,edi,SIZEOF_FAST_FLOAT)], xmm3
+ movaps XMMWORD [XMMBLOCK(2,0,edi,SIZEOF_FAST_FLOAT)], xmm1
+ movaps XMMWORD [XMMBLOCK(3,0,edi,SIZEOF_FAST_FLOAT)], xmm0
+
+ movaps xmm6, xmm5 ; transpose coefficients(phase 2)
+ unpcklps2 xmm5, xmm7 ; xmm5=(40 50 60 70)
+ unpckhps2 xmm6, xmm7 ; xmm6=(41 51 61 71)
+ movaps xmm3, xmm4 ; transpose coefficients(phase 2)
+ unpcklps2 xmm4, xmm2 ; xmm4=(42 52 62 72)
+ unpckhps2 xmm3, xmm2 ; xmm3=(43 53 63 73)
+
+ movaps XMMWORD [XMMBLOCK(0,1,edi,SIZEOF_FAST_FLOAT)], xmm5
+ movaps XMMWORD [XMMBLOCK(1,1,edi,SIZEOF_FAST_FLOAT)], xmm6
+ movaps XMMWORD [XMMBLOCK(2,1,edi,SIZEOF_FAST_FLOAT)], xmm4
+ movaps XMMWORD [XMMBLOCK(3,1,edi,SIZEOF_FAST_FLOAT)], xmm3
+
+.nextcolumn:
+ add esi, byte 4*SIZEOF_JCOEF ; coef_block
+ add edx, byte 4*SIZEOF_FLOAT_MULT_TYPE ; quantptr
+ add edi, 4*DCTSIZE*SIZEOF_FAST_FLOAT ; wsptr
+ dec ecx ; ctr
+ jnz near .columnloop
+
+ ; -- Prefetch the next coefficient block
+
+ prefetchnta [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 0*32]
+ prefetchnta [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 1*32]
+ prefetchnta [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 2*32]
+ prefetchnta [esi + (DCTSIZE2-8)*SIZEOF_JCOEF + 3*32]
+
+ ; ---- Pass 2: process rows from work array, store into output array.
+
+ mov eax, [original_ebp]
+ lea esi, [workspace] ; FAST_FLOAT *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
+
+ movaps xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_FAST_FLOAT)]
+ movaps xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_FAST_FLOAT)]
+ movaps xmm2, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_FAST_FLOAT)]
+ movaps xmm3, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_FAST_FLOAT)]
+
+ movaps xmm4, xmm0
+ movaps xmm5, xmm1
+ subps xmm0, xmm2 ; xmm0=tmp11
+ subps xmm1, xmm3
+ addps xmm4, xmm2 ; xmm4=tmp10
+ addps xmm5, xmm3 ; xmm5=tmp13
+
+ mulps xmm1, [GOTOFF(ebx,PD_1_414)]
+ subps xmm1, xmm5 ; xmm1=tmp12
+
+ movaps xmm6, xmm4
+ movaps xmm7, xmm0
+ subps xmm4, xmm5 ; xmm4=tmp3
+ subps xmm0, xmm1 ; xmm0=tmp2
+ addps xmm6, xmm5 ; xmm6=tmp0
+ addps xmm7, xmm1 ; xmm7=tmp1
+
+ movaps XMMWORD [wk(1)], xmm4 ; tmp3
+ movaps XMMWORD [wk(0)], xmm0 ; tmp2
+
+ ; -- Odd part
+
+ movaps xmm2, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_FAST_FLOAT)]
+ movaps xmm3, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_FAST_FLOAT)]
+ movaps xmm5, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_FAST_FLOAT)]
+ movaps xmm1, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_FAST_FLOAT)]
+
+ movaps xmm4, xmm2
+ movaps xmm0, xmm5
+ addps xmm2, xmm1 ; xmm2=z11
+ addps xmm5, xmm3 ; xmm5=z13
+ subps xmm4, xmm1 ; xmm4=z12
+ subps xmm0, xmm3 ; xmm0=z10
+
+ movaps xmm1, xmm2
+ subps xmm2, xmm5
+ addps xmm1, xmm5 ; xmm1=tmp7
+
+ mulps xmm2, [GOTOFF(ebx,PD_1_414)] ; xmm2=tmp11
+
+ movaps xmm3, xmm0
+ addps xmm0, xmm4
+ mulps xmm0, [GOTOFF(ebx,PD_1_847)] ; xmm0=z5
+ mulps xmm3, [GOTOFF(ebx,PD_M2_613)] ; xmm3=(z10 * -2.613125930)
+ mulps xmm4, [GOTOFF(ebx,PD_1_082)] ; xmm4=(z12 * 1.082392200)
+ addps xmm3, xmm0 ; xmm3=tmp12
+ subps xmm4, xmm0 ; xmm4=tmp10
+
+ ; -- Final output stage
+
+ subps xmm3, xmm1 ; xmm3=tmp6
+ movaps xmm5, xmm6
+ movaps xmm0, xmm7
+ addps xmm6, xmm1 ; xmm6=data0=(00 10 20 30)
+ addps xmm7, xmm3 ; xmm7=data1=(01 11 21 31)
+ subps xmm5, xmm1 ; xmm5=data7=(07 17 27 37)
+ subps xmm0, xmm3 ; xmm0=data6=(06 16 26 36)
+ subps xmm2, xmm3 ; xmm2=tmp5
+
+ movaps xmm1, [GOTOFF(ebx,PD_RNDINT_MAGIC)] ; xmm1=[PD_RNDINT_MAGIC]
+ pcmpeqd xmm3, xmm3
+ psrld xmm3, WORD_BIT ; xmm3={0xFFFF 0x0000 0xFFFF 0x0000 ..}
+
+ addps xmm6, xmm1 ; xmm6=roundint(data0/8)=(00 ** 10 ** 20 ** 30 **)
+ addps xmm7, xmm1 ; xmm7=roundint(data1/8)=(01 ** 11 ** 21 ** 31 **)
+ addps xmm0, xmm1 ; xmm0=roundint(data6/8)=(06 ** 16 ** 26 ** 36 **)
+ addps xmm5, xmm1 ; xmm5=roundint(data7/8)=(07 ** 17 ** 27 ** 37 **)
+
+ pand xmm6, xmm3 ; xmm6=(00 -- 10 -- 20 -- 30 --)
+ pslld xmm7, WORD_BIT ; xmm7=(-- 01 -- 11 -- 21 -- 31)
+ pand xmm0, xmm3 ; xmm0=(06 -- 16 -- 26 -- 36 --)
+ pslld xmm5, WORD_BIT ; xmm5=(-- 07 -- 17 -- 27 -- 37)
+ por xmm6, xmm7 ; xmm6=(00 01 10 11 20 21 30 31)
+ por xmm0, xmm5 ; xmm0=(06 07 16 17 26 27 36 37)
+
+ movaps xmm1, XMMWORD [wk(0)] ; xmm1=tmp2
+ movaps xmm3, XMMWORD [wk(1)] ; xmm3=tmp3
+
+ addps xmm4, xmm2 ; xmm4=tmp4
+ movaps xmm7, xmm1
+ movaps xmm5, xmm3
+ addps xmm1, xmm2 ; xmm1=data2=(02 12 22 32)
+ addps xmm3, xmm4 ; xmm3=data4=(04 14 24 34)
+ subps xmm7, xmm2 ; xmm7=data5=(05 15 25 35)
+ subps xmm5, xmm4 ; xmm5=data3=(03 13 23 33)
+
+ movaps xmm2, [GOTOFF(ebx,PD_RNDINT_MAGIC)] ; xmm2=[PD_RNDINT_MAGIC]
+ pcmpeqd xmm4, xmm4
+ psrld xmm4, WORD_BIT ; xmm4={0xFFFF 0x0000 0xFFFF 0x0000 ..}
+
+ addps xmm3, xmm2 ; xmm3=roundint(data4/8)=(04 ** 14 ** 24 ** 34 **)
+ addps xmm7, xmm2 ; xmm7=roundint(data5/8)=(05 ** 15 ** 25 ** 35 **)
+ addps xmm1, xmm2 ; xmm1=roundint(data2/8)=(02 ** 12 ** 22 ** 32 **)
+ addps xmm5, xmm2 ; xmm5=roundint(data3/8)=(03 ** 13 ** 23 ** 33 **)
+
+ pand xmm3, xmm4 ; xmm3=(04 -- 14 -- 24 -- 34 --)
+ pslld xmm7, WORD_BIT ; xmm7=(-- 05 -- 15 -- 25 -- 35)
+ pand xmm1, xmm4 ; xmm1=(02 -- 12 -- 22 -- 32 --)
+ pslld xmm5, WORD_BIT ; xmm5=(-- 03 -- 13 -- 23 -- 33)
+ por xmm3, xmm7 ; xmm3=(04 05 14 15 24 25 34 35)
+ por xmm1, xmm5 ; xmm1=(02 03 12 13 22 23 32 33)
+
+ movdqa xmm2, [GOTOFF(ebx,PB_CENTERJSAMP)] ; xmm2=[PB_CENTERJSAMP]
+
+ packsswb xmm6, xmm3 ; xmm6=(00 01 10 11 20 21 30 31 04 05 14 15 24 25 34 35)
+ packsswb xmm1, xmm0 ; xmm1=(02 03 12 13 22 23 32 33 06 07 16 17 26 27 36 37)
+ paddb xmm6, xmm2
+ paddb xmm1, xmm2
+
+ movdqa xmm4, xmm6 ; transpose coefficients(phase 2)
+ punpcklwd xmm6, xmm1 ; xmm6=(00 01 02 03 10 11 12 13 20 21 22 23 30 31 32 33)
+ punpckhwd xmm4, xmm1 ; xmm4=(04 05 06 07 14 15 16 17 24 25 26 27 34 35 36 37)
+
+ movdqa xmm7, xmm6 ; transpose coefficients(phase 3)
+ punpckldq xmm6, xmm4 ; xmm6=(00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17)
+ punpckhdq xmm7, xmm4 ; xmm7=(20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37)
+
+ pshufd xmm5, xmm6, 0x4E ; xmm5=(10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07)
+ pshufd xmm3, xmm7, 0x4E ; xmm3=(30 31 32 33 34 35 36 37 20 21 22 23 24 25 26 27)
+
+ pushpic ebx ; save GOT address
+
+ mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW]
+ mov ebx, JSAMPROW [edi+2*SIZEOF_JSAMPROW]
+ movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm6
+ movq XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE], xmm7
+ mov edx, JSAMPROW [edi+1*SIZEOF_JSAMPROW]
+ mov ebx, JSAMPROW [edi+3*SIZEOF_JSAMPROW]
+ movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm5
+ movq XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE], xmm3
+
+ poppic ebx ; restore GOT address
+
+ add esi, byte 4*SIZEOF_FAST_FLOAT ; wsptr
+ add edi, byte 4*SIZEOF_JSAMPROW
+ dec ecx ; ctr
+ jnz near .rowloop
+
+ 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
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-19 11:54:13 +0000