simd/jcqntmmx.asm simd/jfmmxfst.asm simd/jfmmxint.asm \
simd/jimmxred.asm simd/jimmxint.asm simd/jimmxfst.asm \
simd/jcqnt3dn.asm simd/jf3dnflt.asm simd/ji3dnflt.asm \
- simd/jcqntsse.asm simd/jfsseflt.asm simd/jisseflt.asm
+ simd/jcqntsse.asm simd/jfsseflt.asm simd/jisseflt.asm \
+ simd/jccolss2.asm simd/jdcolss2.asm \
+ simd/jcsamss2.asm simd/jdsamss2.asm simd/jdmerss2.asm \
+ simd/jcqnts2i.asm simd/jfss2fst.asm simd/jfss2int.asm \
+ simd/jiss2red.asm simd/jiss2int.asm simd/jiss2fst.asm \
+ simd/jcqnts2f.asm simd/jiss2flt.asm
endif
if ((RGB_PIXELSIZE != 3) && (RGB_PIXELSIZE != 4))
return 0;
+ if ((simd_support & JSIMD_SSE2) &&
+ IS_ALIGNED_SSE(jconst_rgb_ycc_convert_sse2))
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
if ((RGB_PIXELSIZE != 3) && (RGB_PIXELSIZE != 4))
return 0;
+ if ((simd_support & JSIMD_SSE2) &&
+ IS_ALIGNED_SSE(jconst_ycc_rgb_convert_sse2))
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
JDIMENSION output_row, int num_rows)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if ((simd_support & JSIMD_SSE2) &&
+ IS_ALIGNED_SSE(jconst_rgb_ycc_convert_sse2))
+ jsimd_rgb_ycc_convert_sse2(cinfo->image_width, input_buf,
+ output_buf, output_row, num_rows);
+ else if (simd_support & JSIMD_MMX)
jsimd_rgb_ycc_convert_mmx(cinfo->image_width, input_buf,
output_buf, output_row, num_rows);
#endif
JSAMPARRAY output_buf, int num_rows)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if ((simd_support & JSIMD_SSE2) &&
+ IS_ALIGNED_SSE(jconst_ycc_rgb_convert_sse2))
+ jsimd_ycc_rgb_convert_sse2(cinfo->output_width, input_buf,
+ input_row, output_buf, num_rows);
+ else if (simd_support & JSIMD_MMX)
jsimd_ycc_rgb_convert_mmx(cinfo->output_width, input_buf,
input_row, output_buf, num_rows);
#endif
if (sizeof(JDIMENSION) != 4)
return 0;
+ if (simd_support & JSIMD_SSE2)
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
if (sizeof(JDIMENSION) != 4)
return 0;
+ if (simd_support & JSIMD_SSE2)
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
JSAMPARRAY input_data, JSAMPARRAY output_data)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if (simd_support & JSIMD_SSE2)
+ jsimd_h2v2_downsample_sse2(cinfo->image_width, cinfo->max_v_samp_factor,
+ compptr->v_samp_factor, compptr->width_in_blocks,
+ input_data, output_data);
+ else if (simd_support & JSIMD_MMX)
jsimd_h2v2_downsample_mmx(cinfo->image_width, cinfo->max_v_samp_factor,
compptr->v_samp_factor, compptr->width_in_blocks,
input_data, output_data);
JSAMPARRAY input_data, JSAMPARRAY output_data)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if (simd_support & JSIMD_SSE2)
+ jsimd_h2v1_downsample_sse2(cinfo->image_width, cinfo->max_v_samp_factor,
+ compptr->v_samp_factor, compptr->width_in_blocks,
+ input_data, output_data);
+ else if (simd_support & JSIMD_MMX)
jsimd_h2v1_downsample_mmx(cinfo->image_width, cinfo->max_v_samp_factor,
compptr->v_samp_factor, compptr->width_in_blocks,
input_data, output_data);
if (sizeof(JDIMENSION) != 4)
return 0;
+ if (simd_support & JSIMD_SSE2)
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
if (sizeof(JDIMENSION) != 4)
return 0;
+ if (simd_support & JSIMD_SSE2)
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
JSAMPARRAY * output_data_ptr)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if (simd_support & JSIMD_SSE2)
+ jsimd_h2v2_upsample_sse2(cinfo->max_v_samp_factor,
+ cinfo->output_width, input_data, output_data_ptr);
+ else if (simd_support & JSIMD_MMX)
jsimd_h2v2_upsample_mmx(cinfo->max_v_samp_factor,
cinfo->output_width, input_data, output_data_ptr);
#endif
JSAMPARRAY * output_data_ptr)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if (simd_support & JSIMD_SSE2)
+ jsimd_h2v1_upsample_sse2(cinfo->max_v_samp_factor,
+ cinfo->output_width, input_data, output_data_ptr);
+ else if (simd_support & JSIMD_MMX)
jsimd_h2v1_upsample_mmx(cinfo->max_v_samp_factor,
cinfo->output_width, input_data, output_data_ptr);
#endif
if (sizeof(JDIMENSION) != 4)
return 0;
+ if ((simd_support & JSIMD_SSE2) &&
+ IS_ALIGNED_SSE(jconst_fancy_upsample_sse2))
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
if (sizeof(JDIMENSION) != 4)
return 0;
+ if ((simd_support & JSIMD_SSE2) &&
+ IS_ALIGNED_SSE(jconst_fancy_upsample_sse2))
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
JSAMPARRAY * output_data_ptr)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if ((simd_support & JSIMD_SSE2) &&
+ IS_ALIGNED_SSE(jconst_fancy_upsample_sse2))
+ jsimd_h2v1_fancy_upsample_sse2(cinfo->max_v_samp_factor,
+ compptr->downsampled_width, input_data, output_data_ptr);
+ else if (simd_support & JSIMD_MMX)
jsimd_h2v2_fancy_upsample_mmx(cinfo->max_v_samp_factor,
compptr->downsampled_width, input_data, output_data_ptr);
#endif
JSAMPARRAY * output_data_ptr)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if ((simd_support & JSIMD_SSE2) &&
+ IS_ALIGNED_SSE(jconst_fancy_upsample_sse2))
+ jsimd_h2v1_fancy_upsample_sse2(cinfo->max_v_samp_factor,
+ compptr->downsampled_width, input_data, output_data_ptr);
+ else if (simd_support & JSIMD_MMX)
jsimd_h2v1_fancy_upsample_mmx(cinfo->max_v_samp_factor,
compptr->downsampled_width, input_data, output_data_ptr);
#endif
if (sizeof(JDIMENSION) != 4)
return 0;
+ if ((simd_support & JSIMD_SSE2) &&
+ IS_ALIGNED_SSE(jconst_merged_upsample_sse2))
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
if (sizeof(JDIMENSION) != 4)
return 0;
+ if ((simd_support & JSIMD_SSE2) &&
+ IS_ALIGNED_SSE(jconst_merged_upsample_sse2))
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
JSAMPARRAY output_buf)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if ((simd_support & JSIMD_SSE2) &&
+ IS_ALIGNED_SSE(jconst_merged_upsample_sse2))
+ jsimd_h2v2_merged_upsample_sse2(cinfo->output_width, input_buf,
+ in_row_group_ctr, output_buf);
+ else if (simd_support & JSIMD_MMX)
jsimd_h2v2_merged_upsample_mmx(cinfo->output_width, input_buf,
in_row_group_ctr, output_buf);
#endif
JSAMPARRAY output_buf)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if ((simd_support & JSIMD_SSE2) &&
+ IS_ALIGNED_SSE(jconst_merged_upsample_sse2))
+ jsimd_h2v1_merged_upsample_sse2(cinfo->output_width, input_buf,
+ in_row_group_ctr, output_buf);
+ else if (simd_support & JSIMD_MMX)
jsimd_h2v1_merged_upsample_mmx(cinfo->output_width, input_buf,
in_row_group_ctr, output_buf);
#endif
if (sizeof(DCTELEM) != 2)
return 0;
+ if (simd_support & JSIMD_SSE2)
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
if (sizeof(FAST_FLOAT) != 4)
return 0;
+ if (simd_support & JSIMD_SSE2)
+ return 1;
if (simd_support & JSIMD_SSE)
return 1;
if (simd_support & JSIMD_3DNOW)
DCTELEM * workspace)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if (simd_support & JSIMD_SSE2)
+ jsimd_convsamp_sse2(sample_data, start_col, workspace);
+ else if (simd_support & JSIMD_MMX)
jsimd_convsamp_mmx(sample_data, start_col, workspace);
#endif
}
FAST_FLOAT * workspace)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_SSE)
+ if (simd_support & JSIMD_SSE2)
+ jsimd_convsamp_float_sse2(sample_data, start_col, workspace);
+ else if (simd_support & JSIMD_SSE)
jsimd_convsamp_float_sse(sample_data, start_col, workspace);
else if (simd_support & JSIMD_3DNOW)
jsimd_convsamp_float_3dnow(sample_data, start_col, workspace);
if (sizeof(DCTELEM) != 2)
return 0;
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_fdct_islow_sse2))
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
if (sizeof(DCTELEM) != 2)
return 0;
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_fdct_ifast_sse2))
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
jsimd_fdct_islow (DCTELEM * data)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_fdct_islow_sse2))
+ jsimd_fdct_islow_sse2(data);
+ else if (simd_support & JSIMD_MMX)
jsimd_fdct_islow_mmx(data);
#endif
}
jsimd_fdct_ifast (DCTELEM * data)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_fdct_islow_sse2))
+ jsimd_fdct_ifast_sse2(data);
+ else if (simd_support & JSIMD_MMX)
jsimd_fdct_ifast_mmx(data);
#endif
}
if (sizeof(DCTELEM) != 2)
return 0;
+ if (simd_support & JSIMD_SSE2)
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
if (sizeof(FAST_FLOAT) != 4)
return 0;
+ if (simd_support & JSIMD_SSE2)
+ return 1;
if (simd_support & JSIMD_SSE)
return 1;
if (simd_support & JSIMD_3DNOW)
DCTELEM * workspace)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if (simd_support & JSIMD_SSE2)
+ jsimd_quantize_sse2(coef_block, divisors, workspace);
+ else if (simd_support & JSIMD_MMX)
jsimd_quantize_mmx(coef_block, divisors, workspace);
#endif
}
FAST_FLOAT * workspace)
{
#ifdef WITH_SIMD
- if (simd_support & JSIMD_SSE)
+ if (simd_support & JSIMD_SSE2)
+ jsimd_quantize_float_sse2(coef_block, divisors, workspace);
+ else if (simd_support & JSIMD_SSE)
jsimd_quantize_float_sse(coef_block, divisors, workspace);
else if (simd_support & JSIMD_3DNOW)
jsimd_quantize_float_3dnow(coef_block, divisors, workspace);
if (sizeof(ISLOW_MULT_TYPE) != 2)
return 0;
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_red_sse2))
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
if (sizeof(ISLOW_MULT_TYPE) != 2)
return 0;
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_red_sse2))
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
JDIMENSION output_col)
{
#if WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_red_sse2))
+ jsimd_idct_2x2_sse2(compptr->dct_table, coef_block, output_buf, output_col);
+ else if (simd_support & JSIMD_MMX)
jsimd_idct_2x2_mmx(compptr->dct_table, coef_block, output_buf, output_col);
#endif
}
JDIMENSION output_col)
{
#if WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_red_sse2))
+ jsimd_idct_4x4_sse2(compptr->dct_table, coef_block, output_buf, output_col);
+ else if (simd_support & JSIMD_MMX)
jsimd_idct_4x4_mmx(compptr->dct_table, coef_block, output_buf, output_col);
#endif
}
if (sizeof(ISLOW_MULT_TYPE) != 2)
return 0;
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_islow_sse2))
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
if (IFAST_SCALE_BITS != 2)
return 0;
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_ifast_sse2))
+ return 1;
if (simd_support & JSIMD_MMX)
return 1;
if (sizeof(FLOAT_MULT_TYPE) != 4)
return 0;
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_float_sse2))
+ return 1;
if ((simd_support & JSIMD_SSE) && IS_ALIGNED_SSE(jconst_idct_float_sse))
return 1;
if (simd_support & JSIMD_3DNOW)
JDIMENSION output_col)
{
#if WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_islow_sse2))
+ jsimd_idct_islow_sse2(compptr->dct_table, coef_block, output_buf, output_col);
+ else if (simd_support & JSIMD_MMX)
jsimd_idct_islow_mmx(compptr->dct_table, coef_block, output_buf, output_col);
#endif
}
JDIMENSION output_col)
{
#if WITH_SIMD
- if (simd_support & JSIMD_MMX)
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_ifast_sse2))
+ jsimd_idct_ifast_sse2(compptr->dct_table, coef_block, output_buf, output_col);
+ else if (simd_support & JSIMD_MMX)
jsimd_idct_ifast_mmx(compptr->dct_table, coef_block, output_buf, output_col);
#endif
}
JDIMENSION output_col)
{
#if WITH_SIMD
- if ((simd_support & JSIMD_SSE) && IS_ALIGNED_SSE(jconst_idct_float_sse))
+ if ((simd_support & JSIMD_SSE2) && IS_ALIGNED_SSE(jconst_idct_float_sse2))
+ jsimd_idct_float_sse2(compptr->dct_table, coef_block,
+ output_buf, output_col);
+ else if ((simd_support & JSIMD_SSE) && IS_ALIGNED_SSE(jconst_idct_float_sse))
jsimd_idct_float_sse(compptr->dct_table, coef_block,
output_buf, output_col);
else if (simd_support & JSIMD_3DNOW)
--- /dev/null
+;
+; jccolss2.asm - colorspace conversion (SSE2)
+;
+; 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
+;
+; [TAB8]
+
+%include "simd/jsimdext.inc"
+%include "simd/jcolsamp.inc"
+
+; --------------------------------------------------------------------------
+
+%define SCALEBITS 16
+
+F_0_081 equ 5329 ; FIX(0.08131)
+F_0_114 equ 7471 ; FIX(0.11400)
+F_0_168 equ 11059 ; FIX(0.16874)
+F_0_250 equ 16384 ; FIX(0.25000)
+F_0_299 equ 19595 ; FIX(0.29900)
+F_0_331 equ 21709 ; FIX(0.33126)
+F_0_418 equ 27439 ; FIX(0.41869)
+F_0_587 equ 38470 ; FIX(0.58700)
+F_0_337 equ (F_0_587 - F_0_250) ; FIX(0.58700) - FIX(0.25000)
+
+; --------------------------------------------------------------------------
+ SECTION SEG_CONST
+
+ alignz 16
+ global EXTN(jconst_rgb_ycc_convert_sse2)
+
+EXTN(jconst_rgb_ycc_convert_sse2):
+
+PW_F0299_F0337 times 4 dw F_0_299, F_0_337
+PW_F0114_F0250 times 4 dw F_0_114, F_0_250
+PW_MF016_MF033 times 4 dw -F_0_168,-F_0_331
+PW_MF008_MF041 times 4 dw -F_0_081,-F_0_418
+PD_ONEHALFM1_CJ times 4 dd (1 << (SCALEBITS-1)) - 1 + (CENTERJSAMPLE << SCALEBITS)
+PD_ONEHALF times 4 dd (1 << (SCALEBITS-1))
+
+ alignz 16
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Convert some rows of samples to the output colorspace.
+;
+; GLOBAL(void)
+; jsimd_rgb_ycc_convert_sse2 (JDIMENSION img_width,
+; JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
+; JDIMENSION output_row, int num_rows);
+;
+
+%define img_width(b) (b)+8 ; JDIMENSION img_width
+%define input_buf(b) (b)+12 ; JSAMPARRAY input_buf
+%define output_buf(b) (b)+16 ; JSAMPIMAGE output_buf
+%define output_row(b) (b)+20 ; JDIMENSION output_row
+%define num_rows(b) (b)+24 ; int num_rows
+
+%define original_ebp ebp+0
+%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
+%define WK_NUM 8
+%define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr
+
+ align 16
+ global EXTN(jsimd_rgb_ycc_convert_sse2)
+
+EXTN(jsimd_rgb_ycc_convert_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, [wk(0)]
+ pushpic eax ; make a room for GOT address
+ push ebx
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ get_GOT ebx ; get GOT address
+ movpic POINTER [gotptr], ebx ; save GOT address
+
+ mov ecx, JDIMENSION [img_width(eax)]
+ test ecx,ecx
+ jz near .return
+
+ push ecx
+
+ mov esi, JSAMPIMAGE [output_buf(eax)]
+ mov ecx, JDIMENSION [output_row(eax)]
+ mov edi, JSAMPARRAY [esi+0*SIZEOF_JSAMPARRAY]
+ mov ebx, JSAMPARRAY [esi+1*SIZEOF_JSAMPARRAY]
+ mov edx, JSAMPARRAY [esi+2*SIZEOF_JSAMPARRAY]
+ lea edi, [edi+ecx*SIZEOF_JSAMPROW]
+ lea ebx, [ebx+ecx*SIZEOF_JSAMPROW]
+ lea edx, [edx+ecx*SIZEOF_JSAMPROW]
+
+ pop ecx
+
+ mov esi, JSAMPARRAY [input_buf(eax)]
+ mov eax, INT [num_rows(eax)]
+ test eax,eax
+ jle near .return
+ alignx 16,7
+.rowloop:
+ pushpic eax
+ push edx
+ push ebx
+ push edi
+ push esi
+ push ecx ; col
+
+ mov esi, JSAMPROW [esi] ; inptr
+ mov edi, JSAMPROW [edi] ; outptr0
+ mov ebx, JSAMPROW [ebx] ; outptr1
+ mov edx, JSAMPROW [edx] ; outptr2
+ movpic eax, POINTER [gotptr] ; load GOT address (eax)
+
+ cmp ecx, byte SIZEOF_XMMWORD
+ jae near .columnloop
+ alignx 16,7
+
+%if RGB_PIXELSIZE == 3 ; ---------------
+
+.column_ld1:
+ push eax
+ push edx
+ lea ecx,[ecx+ecx*2] ; imul ecx,RGB_PIXELSIZE
+ test cl, SIZEOF_BYTE
+ jz short .column_ld2
+ sub ecx, byte SIZEOF_BYTE
+ movzx eax, BYTE [esi+ecx]
+.column_ld2:
+ test cl, SIZEOF_WORD
+ jz short .column_ld4
+ sub ecx, byte SIZEOF_WORD
+ movzx edx, WORD [esi+ecx]
+ shl eax, WORD_BIT
+ or eax,edx
+.column_ld4:
+ movd xmmA,eax
+ pop edx
+ pop eax
+ test cl, SIZEOF_DWORD
+ jz short .column_ld8
+ sub ecx, byte SIZEOF_DWORD
+ movd xmmF, XMM_DWORD [esi+ecx]
+ pslldq xmmA, SIZEOF_DWORD
+ por xmmA,xmmF
+.column_ld8:
+ test cl, SIZEOF_MMWORD
+ jz short .column_ld16
+ sub ecx, byte SIZEOF_MMWORD
+ movq xmmB, XMM_MMWORD [esi+ecx]
+ pslldq xmmA, SIZEOF_MMWORD
+ por xmmA,xmmB
+.column_ld16:
+ test cl, SIZEOF_XMMWORD
+ jz short .column_ld32
+ movdqa xmmF,xmmA
+ movdqu xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
+ mov ecx, SIZEOF_XMMWORD
+ jmp short .rgb_ycc_cnv
+.column_ld32:
+ test cl, 2*SIZEOF_XMMWORD
+ mov ecx, SIZEOF_XMMWORD
+ jz short .rgb_ycc_cnv
+ movdqa xmmB,xmmA
+ movdqu xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
+ movdqu xmmF, XMMWORD [esi+1*SIZEOF_XMMWORD]
+ jmp short .rgb_ycc_cnv
+ alignx 16,7
+
+.columnloop:
+ movdqu xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
+ movdqu xmmF, XMMWORD [esi+1*SIZEOF_XMMWORD]
+ movdqu xmmB, XMMWORD [esi+2*SIZEOF_XMMWORD]
+
+.rgb_ycc_cnv:
+ ; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05)
+ ; xmmF=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A)
+ ; xmmB=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F)
+
+ movdqa xmmG,xmmA
+ pslldq xmmA,8 ; xmmA=(-- -- -- -- -- -- -- -- 00 10 20 01 11 21 02 12)
+ psrldq xmmG,8 ; xmmG=(22 03 13 23 04 14 24 05 -- -- -- -- -- -- -- --)
+
+ punpckhbw xmmA,xmmF ; xmmA=(00 08 10 18 20 28 01 09 11 19 21 29 02 0A 12 1A)
+ pslldq xmmF,8 ; xmmF=(-- -- -- -- -- -- -- -- 15 25 06 16 26 07 17 27)
+
+ punpcklbw xmmG,xmmB ; xmmG=(22 2A 03 0B 13 1B 23 2B 04 0C 14 1C 24 2C 05 0D)
+ punpckhbw xmmF,xmmB ; xmmF=(15 1D 25 2D 06 0E 16 1E 26 2E 07 0F 17 1F 27 2F)
+
+ movdqa xmmD,xmmA
+ pslldq xmmA,8 ; xmmA=(-- -- -- -- -- -- -- -- 00 08 10 18 20 28 01 09)
+ psrldq xmmD,8 ; xmmD=(11 19 21 29 02 0A 12 1A -- -- -- -- -- -- -- --)
+
+ punpckhbw xmmA,xmmG ; xmmA=(00 04 08 0C 10 14 18 1C 20 24 28 2C 01 05 09 0D)
+ pslldq xmmG,8 ; xmmG=(-- -- -- -- -- -- -- -- 22 2A 03 0B 13 1B 23 2B)
+
+ punpcklbw xmmD,xmmF ; xmmD=(11 15 19 1D 21 25 29 2D 02 06 0A 0E 12 16 1A 1E)
+ punpckhbw xmmG,xmmF ; xmmG=(22 26 2A 2E 03 07 0B 0F 13 17 1B 1F 23 27 2B 2F)
+
+ movdqa xmmE,xmmA
+ pslldq xmmA,8 ; xmmA=(-- -- -- -- -- -- -- -- 00 04 08 0C 10 14 18 1C)
+ psrldq xmmE,8 ; xmmE=(20 24 28 2C 01 05 09 0D -- -- -- -- -- -- -- --)
+
+ punpckhbw xmmA,xmmD ; xmmA=(00 02 04 06 08 0A 0C 0E 10 12 14 16 18 1A 1C 1E)
+ pslldq xmmD,8 ; xmmD=(-- -- -- -- -- -- -- -- 11 15 19 1D 21 25 29 2D)
+
+ punpcklbw xmmE,xmmG ; xmmE=(20 22 24 26 28 2A 2C 2E 01 03 05 07 09 0B 0D 0F)
+ punpckhbw xmmD,xmmG ; xmmD=(11 13 15 17 19 1B 1D 1F 21 23 25 27 29 2B 2D 2F)
+
+ pxor xmmH,xmmH
+
+ movdqa xmmC,xmmA
+ punpcklbw xmmA,xmmH ; xmmA=(00 02 04 06 08 0A 0C 0E)
+ punpckhbw xmmC,xmmH ; xmmC=(10 12 14 16 18 1A 1C 1E)
+
+ movdqa xmmB,xmmE
+ punpcklbw xmmE,xmmH ; xmmE=(20 22 24 26 28 2A 2C 2E)
+ punpckhbw xmmB,xmmH ; xmmB=(01 03 05 07 09 0B 0D 0F)
+
+ movdqa xmmF,xmmD
+ punpcklbw xmmD,xmmH ; xmmD=(11 13 15 17 19 1B 1D 1F)
+ punpckhbw xmmF,xmmH ; xmmF=(21 23 25 27 29 2B 2D 2F)
+
+%else ; RGB_PIXELSIZE == 4 ; -----------
+
+.column_ld1:
+ test cl, SIZEOF_XMMWORD/16
+ jz short .column_ld2
+ sub ecx, byte SIZEOF_XMMWORD/16
+ movd xmmA, _DWORD [esi+ecx*RGB_PIXELSIZE]
+.column_ld2:
+ test cl, SIZEOF_XMMWORD/8
+ jz short .column_ld4
+ sub ecx, byte SIZEOF_XMMWORD/8
+ movq xmmE, _MMWORD [esi+ecx*RGB_PIXELSIZE]
+ pslldq xmmA, SIZEOF_MMWORD
+ por xmmA,xmmE
+.column_ld4:
+ test cl, SIZEOF_XMMWORD/4
+ jz short .column_ld8
+ sub ecx, byte SIZEOF_XMMWORD/4
+ movdqa xmmE,xmmA
+ movdqu xmmA, XMMWORD [esi+ecx*RGB_PIXELSIZE]
+.column_ld8:
+ test cl, SIZEOF_XMMWORD/2
+ mov ecx, SIZEOF_XMMWORD
+ jz short .rgb_ycc_cnv
+ movdqa xmmF,xmmA
+ movdqa xmmH,xmmE
+ movdqu xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
+ movdqu xmmE, XMMWORD [esi+1*SIZEOF_XMMWORD]
+ jmp short .rgb_ycc_cnv
+ alignx 16,7
+
+.columnloop:
+ movdqu xmmA, XMMWORD [esi+0*SIZEOF_XMMWORD]
+ movdqu xmmE, XMMWORD [esi+1*SIZEOF_XMMWORD]
+ movdqu xmmF, XMMWORD [esi+2*SIZEOF_XMMWORD]
+ movdqu xmmH, XMMWORD [esi+3*SIZEOF_XMMWORD]
+
+.rgb_ycc_cnv:
+ ; xmmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33)
+ ; xmmE=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37)
+ ; xmmF=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B)
+ ; xmmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F)
+
+ movdqa xmmD,xmmA
+ punpcklbw xmmA,xmmE ; xmmA=(00 04 10 14 20 24 30 34 01 05 11 15 21 25 31 35)
+ punpckhbw xmmD,xmmE ; xmmD=(02 06 12 16 22 26 32 36 03 07 13 17 23 27 33 37)
+
+ movdqa xmmC,xmmF
+ punpcklbw xmmF,xmmH ; xmmF=(08 0C 18 1C 28 2C 38 3C 09 0D 19 1D 29 2D 39 3D)
+ punpckhbw xmmC,xmmH ; xmmC=(0A 0E 1A 1E 2A 2E 3A 3E 0B 0F 1B 1F 2B 2F 3B 3F)
+
+ movdqa xmmB,xmmA
+ punpcklwd xmmA,xmmF ; xmmA=(00 04 08 0C 10 14 18 1C 20 24 28 2C 30 34 38 3C)
+ punpckhwd xmmB,xmmF ; xmmB=(01 05 09 0D 11 15 19 1D 21 25 29 2D 31 35 39 3D)
+
+ movdqa xmmG,xmmD
+ punpcklwd xmmD,xmmC ; xmmD=(02 06 0A 0E 12 16 1A 1E 22 26 2A 2E 32 36 3A 3E)
+ punpckhwd xmmG,xmmC ; xmmG=(03 07 0B 0F 13 17 1B 1F 23 27 2B 2F 33 37 3B 3F)
+
+ movdqa xmmE,xmmA
+ punpcklbw xmmA,xmmD ; xmmA=(00 02 04 06 08 0A 0C 0E 10 12 14 16 18 1A 1C 1E)
+ punpckhbw xmmE,xmmD ; xmmE=(20 22 24 26 28 2A 2C 2E 30 32 34 36 38 3A 3C 3E)
+
+ movdqa xmmH,xmmB
+ punpcklbw xmmB,xmmG ; xmmB=(01 03 05 07 09 0B 0D 0F 11 13 15 17 19 1B 1D 1F)
+ punpckhbw xmmH,xmmG ; xmmH=(21 23 25 27 29 2B 2D 2F 31 33 35 37 39 3B 3D 3F)
+
+ pxor xmmF,xmmF
+
+ movdqa xmmC,xmmA
+ punpcklbw xmmA,xmmF ; xmmA=(00 02 04 06 08 0A 0C 0E)
+ punpckhbw xmmC,xmmF ; xmmC=(10 12 14 16 18 1A 1C 1E)
+
+ movdqa xmmD,xmmB
+ punpcklbw xmmB,xmmF ; xmmB=(01 03 05 07 09 0B 0D 0F)
+ punpckhbw xmmD,xmmF ; xmmD=(11 13 15 17 19 1B 1D 1F)
+
+ movdqa xmmG,xmmE
+ punpcklbw xmmE,xmmF ; xmmE=(20 22 24 26 28 2A 2C 2E)
+ punpckhbw xmmG,xmmF ; xmmG=(30 32 34 36 38 3A 3C 3E)
+
+ punpcklbw xmmF,xmmH
+ punpckhbw xmmH,xmmH
+ psrlw xmmF,BYTE_BIT ; xmmF=(21 23 25 27 29 2B 2D 2F)
+ psrlw xmmH,BYTE_BIT ; xmmH=(31 33 35 37 39 3B 3D 3F)
+
+%endif ; RGB_PIXELSIZE ; ---------------
+
+ ; xmm0=R(02468ACE)=RE, xmm2=G(02468ACE)=GE, xmm4=B(02468ACE)=BE
+ ; xmm1=R(13579BDF)=RO, xmm3=G(13579BDF)=GO, xmm5=B(13579BDF)=BO
+
+ ; (Original)
+ ; Y = 0.29900 * R + 0.58700 * G + 0.11400 * B
+ ; Cb = -0.16874 * R - 0.33126 * G + 0.50000 * B + CENTERJSAMPLE
+ ; Cr = 0.50000 * R - 0.41869 * G - 0.08131 * B + CENTERJSAMPLE
+ ;
+ ; (This implementation)
+ ; Y = 0.29900 * R + 0.33700 * G + 0.11400 * B + 0.25000 * G
+ ; Cb = -0.16874 * R - 0.33126 * G + 0.50000 * B + CENTERJSAMPLE
+ ; Cr = 0.50000 * R - 0.41869 * G - 0.08131 * B + CENTERJSAMPLE
+
+ movdqa XMMWORD [wk(0)], xmm0 ; wk(0)=RE
+ movdqa XMMWORD [wk(1)], xmm1 ; wk(1)=RO
+ movdqa XMMWORD [wk(2)], xmm4 ; wk(2)=BE
+ movdqa XMMWORD [wk(3)], xmm5 ; wk(3)=BO
+
+ movdqa xmm6,xmm1
+ punpcklwd xmm1,xmm3
+ punpckhwd xmm6,xmm3
+ movdqa xmm7,xmm1
+ movdqa xmm4,xmm6
+ pmaddwd xmm1,[GOTOFF(eax,PW_F0299_F0337)] ; xmm1=ROL*FIX(0.299)+GOL*FIX(0.337)
+ pmaddwd xmm6,[GOTOFF(eax,PW_F0299_F0337)] ; xmm6=ROH*FIX(0.299)+GOH*FIX(0.337)
+ pmaddwd xmm7,[GOTOFF(eax,PW_MF016_MF033)] ; xmm7=ROL*-FIX(0.168)+GOL*-FIX(0.331)
+ pmaddwd xmm4,[GOTOFF(eax,PW_MF016_MF033)] ; xmm4=ROH*-FIX(0.168)+GOH*-FIX(0.331)
+
+ movdqa XMMWORD [wk(4)], xmm1 ; wk(4)=ROL*FIX(0.299)+GOL*FIX(0.337)
+ movdqa XMMWORD [wk(5)], xmm6 ; wk(5)=ROH*FIX(0.299)+GOH*FIX(0.337)
+
+ pxor xmm1,xmm1
+ pxor xmm6,xmm6
+ punpcklwd xmm1,xmm5 ; xmm1=BOL
+ punpckhwd xmm6,xmm5 ; xmm6=BOH
+ psrld xmm1,1 ; xmm1=BOL*FIX(0.500)
+ psrld xmm6,1 ; xmm6=BOH*FIX(0.500)
+
+ movdqa xmm5,[GOTOFF(eax,PD_ONEHALFM1_CJ)] ; xmm5=[PD_ONEHALFM1_CJ]
+
+ paddd xmm7,xmm1
+ paddd xmm4,xmm6
+ paddd xmm7,xmm5
+ paddd xmm4,xmm5
+ psrld xmm7,SCALEBITS ; xmm7=CbOL
+ psrld xmm4,SCALEBITS ; xmm4=CbOH
+ packssdw xmm7,xmm4 ; xmm7=CbO
+
+ movdqa xmm1, XMMWORD [wk(2)] ; xmm1=BE
+
+ movdqa xmm6,xmm0
+ punpcklwd xmm0,xmm2
+ punpckhwd xmm6,xmm2
+ movdqa xmm5,xmm0
+ movdqa xmm4,xmm6
+ pmaddwd xmm0,[GOTOFF(eax,PW_F0299_F0337)] ; xmm0=REL*FIX(0.299)+GEL*FIX(0.337)
+ pmaddwd xmm6,[GOTOFF(eax,PW_F0299_F0337)] ; xmm6=REH*FIX(0.299)+GEH*FIX(0.337)
+ pmaddwd xmm5,[GOTOFF(eax,PW_MF016_MF033)] ; xmm5=REL*-FIX(0.168)+GEL*-FIX(0.331)
+ pmaddwd xmm4,[GOTOFF(eax,PW_MF016_MF033)] ; xmm4=REH*-FIX(0.168)+GEH*-FIX(0.331)
+
+ movdqa XMMWORD [wk(6)], xmm0 ; wk(6)=REL*FIX(0.299)+GEL*FIX(0.337)
+ movdqa XMMWORD [wk(7)], xmm6 ; wk(7)=REH*FIX(0.299)+GEH*FIX(0.337)
+
+ pxor xmm0,xmm0
+ pxor xmm6,xmm6
+ punpcklwd xmm0,xmm1 ; xmm0=BEL
+ punpckhwd xmm6,xmm1 ; xmm6=BEH
+ psrld xmm0,1 ; xmm0=BEL*FIX(0.500)
+ psrld xmm6,1 ; xmm6=BEH*FIX(0.500)
+
+ movdqa xmm1,[GOTOFF(eax,PD_ONEHALFM1_CJ)] ; xmm1=[PD_ONEHALFM1_CJ]
+
+ paddd xmm5,xmm0
+ paddd xmm4,xmm6
+ paddd xmm5,xmm1
+ paddd xmm4,xmm1
+ psrld xmm5,SCALEBITS ; xmm5=CbEL
+ psrld xmm4,SCALEBITS ; xmm4=CbEH
+ packssdw xmm5,xmm4 ; xmm5=CbE
+
+ psllw xmm7,BYTE_BIT
+ por xmm5,xmm7 ; xmm5=Cb
+ movdqa XMMWORD [ebx], xmm5 ; Save Cb
+
+ movdqa xmm0, XMMWORD [wk(3)] ; xmm0=BO
+ movdqa xmm6, XMMWORD [wk(2)] ; xmm6=BE
+ movdqa xmm1, XMMWORD [wk(1)] ; xmm1=RO
+
+ movdqa xmm4,xmm0
+ punpcklwd xmm0,xmm3
+ punpckhwd xmm4,xmm3
+ movdqa xmm7,xmm0
+ movdqa xmm5,xmm4
+ pmaddwd xmm0,[GOTOFF(eax,PW_F0114_F0250)] ; xmm0=BOL*FIX(0.114)+GOL*FIX(0.250)
+ pmaddwd xmm4,[GOTOFF(eax,PW_F0114_F0250)] ; xmm4=BOH*FIX(0.114)+GOH*FIX(0.250)
+ pmaddwd xmm7,[GOTOFF(eax,PW_MF008_MF041)] ; xmm7=BOL*-FIX(0.081)+GOL*-FIX(0.418)
+ pmaddwd xmm5,[GOTOFF(eax,PW_MF008_MF041)] ; xmm5=BOH*-FIX(0.081)+GOH*-FIX(0.418)
+
+ movdqa xmm3,[GOTOFF(eax,PD_ONEHALF)] ; xmm3=[PD_ONEHALF]
+
+ paddd xmm0, XMMWORD [wk(4)]
+ paddd xmm4, XMMWORD [wk(5)]
+ paddd xmm0,xmm3
+ paddd xmm4,xmm3
+ psrld xmm0,SCALEBITS ; xmm0=YOL
+ psrld xmm4,SCALEBITS ; xmm4=YOH
+ packssdw xmm0,xmm4 ; xmm0=YO
+
+ pxor xmm3,xmm3
+ pxor xmm4,xmm4
+ punpcklwd xmm3,xmm1 ; xmm3=ROL
+ punpckhwd xmm4,xmm1 ; xmm4=ROH
+ psrld xmm3,1 ; xmm3=ROL*FIX(0.500)
+ psrld xmm4,1 ; xmm4=ROH*FIX(0.500)
+
+ movdqa xmm1,[GOTOFF(eax,PD_ONEHALFM1_CJ)] ; xmm1=[PD_ONEHALFM1_CJ]
+
+ paddd xmm7,xmm3
+ paddd xmm5,xmm4
+ paddd xmm7,xmm1
+ paddd xmm5,xmm1
+ psrld xmm7,SCALEBITS ; xmm7=CrOL
+ psrld xmm5,SCALEBITS ; xmm5=CrOH
+ packssdw xmm7,xmm5 ; xmm7=CrO
+
+ movdqa xmm3, XMMWORD [wk(0)] ; xmm3=RE
+
+ movdqa xmm4,xmm6
+ punpcklwd xmm6,xmm2
+ punpckhwd xmm4,xmm2
+ movdqa xmm1,xmm6
+ movdqa xmm5,xmm4
+ pmaddwd xmm6,[GOTOFF(eax,PW_F0114_F0250)] ; xmm6=BEL*FIX(0.114)+GEL*FIX(0.250)
+ pmaddwd xmm4,[GOTOFF(eax,PW_F0114_F0250)] ; xmm4=BEH*FIX(0.114)+GEH*FIX(0.250)
+ pmaddwd xmm1,[GOTOFF(eax,PW_MF008_MF041)] ; xmm1=BEL*-FIX(0.081)+GEL*-FIX(0.418)
+ pmaddwd xmm5,[GOTOFF(eax,PW_MF008_MF041)] ; xmm5=BEH*-FIX(0.081)+GEH*-FIX(0.418)
+
+ movdqa xmm2,[GOTOFF(eax,PD_ONEHALF)] ; xmm2=[PD_ONEHALF]
+
+ paddd xmm6, XMMWORD [wk(6)]
+ paddd xmm4, XMMWORD [wk(7)]
+ paddd xmm6,xmm2
+ paddd xmm4,xmm2
+ psrld xmm6,SCALEBITS ; xmm6=YEL
+ psrld xmm4,SCALEBITS ; xmm4=YEH
+ packssdw xmm6,xmm4 ; xmm6=YE
+
+ psllw xmm0,BYTE_BIT
+ por xmm6,xmm0 ; xmm6=Y
+ movdqa XMMWORD [edi], xmm6 ; Save Y
+
+ pxor xmm2,xmm2
+ pxor xmm4,xmm4
+ punpcklwd xmm2,xmm3 ; xmm2=REL
+ punpckhwd xmm4,xmm3 ; xmm4=REH
+ psrld xmm2,1 ; xmm2=REL*FIX(0.500)
+ psrld xmm4,1 ; xmm4=REH*FIX(0.500)
+
+ movdqa xmm0,[GOTOFF(eax,PD_ONEHALFM1_CJ)] ; xmm0=[PD_ONEHALFM1_CJ]
+
+ paddd xmm1,xmm2
+ paddd xmm5,xmm4
+ paddd xmm1,xmm0
+ paddd xmm5,xmm0
+ psrld xmm1,SCALEBITS ; xmm1=CrEL
+ psrld xmm5,SCALEBITS ; xmm5=CrEH
+ packssdw xmm1,xmm5 ; xmm1=CrE
+
+ psllw xmm7,BYTE_BIT
+ por xmm1,xmm7 ; xmm1=Cr
+ movdqa XMMWORD [edx], xmm1 ; Save Cr
+
+ sub ecx, byte SIZEOF_XMMWORD
+ add esi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; inptr
+ add edi, byte SIZEOF_XMMWORD ; outptr0
+ add ebx, byte SIZEOF_XMMWORD ; outptr1
+ add edx, byte SIZEOF_XMMWORD ; outptr2
+ cmp ecx, byte SIZEOF_XMMWORD
+ jae near .columnloop
+ test ecx,ecx
+ jnz near .column_ld1
+
+ pop ecx ; col
+ pop esi
+ pop edi
+ pop ebx
+ pop edx
+ poppic eax
+
+ add esi, byte SIZEOF_JSAMPROW ; input_buf
+ add edi, byte SIZEOF_JSAMPROW
+ add ebx, byte SIZEOF_JSAMPROW
+ add edx, byte SIZEOF_JSAMPROW
+ dec eax ; num_rows
+ jg near .rowloop
+
+.return:
+ 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
+
%if RGB_RED == 0
%define mmA mm0
%define mmB mm1
+%define xmmA xmm0
+%define xmmB xmm1
%elif RGB_GREEN == 0
%define mmA mm2
%define mmB mm3
+%define xmmA xmm2
+%define xmmB xmm3
%elif RGB_BLUE == 0
%define mmA mm4
%define mmB mm5
+%define xmmA xmm4
+%define xmmB xmm5
%else
%define mmA mm6
%define mmB mm7
+%define xmmA xmm6
+%define xmmB xmm7
%endif
%if RGB_RED == 1
%define mmC mm0
%define mmD mm1
+%define xmmC xmm0
+%define xmmD xmm1
%elif RGB_GREEN == 1
%define mmC mm2
%define mmD mm3
+%define xmmC xmm2
+%define xmmD xmm3
%elif RGB_BLUE == 1
%define mmC mm4
%define mmD mm5
+%define xmmC xmm4
+%define xmmD xmm5
%else
%define mmC mm6
%define mmD mm7
+%define xmmC xmm6
+%define xmmD xmm7
%endif
%if RGB_RED == 2
%define mmE mm0
%define mmF mm1
+%define xmmE xmm0
+%define xmmF xmm1
%elif RGB_GREEN == 2
%define mmE mm2
%define mmF mm3
+%define xmmE xmm2
+%define xmmF xmm3
%elif RGB_BLUE == 2
%define mmE mm4
%define mmF mm5
+%define xmmE xmm4
+%define xmmF xmm5
%else
%define mmE mm6
%define mmF mm7
+%define xmmE xmm6
+%define xmmF xmm7
%endif
%if RGB_RED == 3
%define mmG mm0
%define mmH mm1
+%define xmmG xmm0
+%define xmmH xmm1
%elif RGB_GREEN == 3
%define mmG mm2
%define mmH mm3
+%define xmmG xmm2
+%define xmmH xmm3
%elif RGB_BLUE == 3
%define mmG mm4
%define mmH mm5
+%define xmmG xmm4
+%define xmmH xmm5
%else
%define mmG mm6
%define mmH mm7
+%define xmmG xmm6
+%define xmmH xmm7
%endif
; --------------------------------------------------------------------------
--- /dev/null
+;
+; jcqnts2f.asm - sample data conversion and quantization (SSE & SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; Based on
+; 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
+;
+; [TAB8]
+
+%include "simd/jsimdext.inc"
+%include "simd/jdct.inc"
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Load data into workspace, applying unsigned->signed conversion
+;
+; GLOBAL(void)
+; jsimd_convsamp_float_sse2 (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 16
+ global EXTN(jsimd_convsamp_float_sse2)
+
+EXTN(jsimd_convsamp_float_sse2):
+ push ebp
+ mov ebp,esp
+ push ebx
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ pcmpeqw xmm7,xmm7
+ psllw xmm7,7
+ packsswb xmm7,xmm7 ; xmm7 = 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 xmm0, XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE]
+ movq xmm1, XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE]
+
+ psubb xmm0,xmm7 ; xmm0=(01234567)
+ psubb xmm1,xmm7 ; xmm1=(89ABCDEF)
+
+ punpcklbw xmm0,xmm0 ; xmm0=(*0*1*2*3*4*5*6*7)
+ punpcklbw xmm1,xmm1 ; xmm1=(*8*9*A*B*C*D*E*F)
+
+ punpcklwd xmm2,xmm0 ; xmm2=(***0***1***2***3)
+ punpckhwd xmm0,xmm0 ; xmm0=(***4***5***6***7)
+ punpcklwd xmm3,xmm1 ; xmm3=(***8***9***A***B)
+ punpckhwd xmm1,xmm1 ; xmm1=(***C***D***E***F)
+
+ psrad xmm2,(DWORD_BIT-BYTE_BIT) ; xmm2=(0123)
+ psrad xmm0,(DWORD_BIT-BYTE_BIT) ; xmm0=(4567)
+ cvtdq2ps xmm2,xmm2 ; xmm2=(0123)
+ cvtdq2ps xmm0,xmm0 ; xmm0=(4567)
+ psrad xmm3,(DWORD_BIT-BYTE_BIT) ; xmm3=(89AB)
+ psrad xmm1,(DWORD_BIT-BYTE_BIT) ; xmm1=(CDEF)
+ cvtdq2ps xmm3,xmm3 ; xmm3=(89AB)
+ cvtdq2ps xmm1,xmm1 ; xmm1=(CDEF)
+
+ movaps XMMWORD [XMMBLOCK(0,0,edi,SIZEOF_FAST_FLOAT)], xmm2
+ movaps XMMWORD [XMMBLOCK(0,1,edi,SIZEOF_FAST_FLOAT)], xmm0
+ movaps XMMWORD [XMMBLOCK(1,0,edi,SIZEOF_FAST_FLOAT)], xmm3
+ movaps XMMWORD [XMMBLOCK(1,1,edi,SIZEOF_FAST_FLOAT)], xmm1
+
+ add esi, byte 2*SIZEOF_JSAMPROW
+ add edi, byte 2*DCTSIZE*SIZEOF_FAST_FLOAT
+ dec ecx
+ jnz short .convloop
+
+ 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_sse2 (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 16
+ global EXTN(jsimd_quantize_float_sse2)
+
+EXTN(jsimd_quantize_float_sse2):
+ push ebp
+ mov ebp,esp
+; push ebx ; unused
+; push ecx ; unused
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ mov esi, POINTER [workspace]
+ mov edx, POINTER [divisors]
+ mov edi, JCOEFPTR [coef_block]
+ mov eax, DCTSIZE2/16
+ alignx 16,7
+.quantloop:
+ movaps xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_FAST_FLOAT)]
+ movaps xmm1, XMMWORD [XMMBLOCK(0,1,esi,SIZEOF_FAST_FLOAT)]
+ mulps xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_FAST_FLOAT)]
+ mulps xmm1, XMMWORD [XMMBLOCK(0,1,edx,SIZEOF_FAST_FLOAT)]
+ movaps xmm2, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_FAST_FLOAT)]
+ movaps xmm3, XMMWORD [XMMBLOCK(1,1,esi,SIZEOF_FAST_FLOAT)]
+ mulps xmm2, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_FAST_FLOAT)]
+ mulps xmm3, XMMWORD [XMMBLOCK(1,1,edx,SIZEOF_FAST_FLOAT)]
+
+ cvtps2dq xmm0,xmm0
+ cvtps2dq xmm1,xmm1
+ cvtps2dq xmm2,xmm2
+ cvtps2dq xmm3,xmm3
+
+ packssdw xmm0,xmm1
+ packssdw xmm2,xmm3
+
+ movdqa XMMWORD [XMMBLOCK(0,0,edi,SIZEOF_JCOEF)], xmm0
+ movdqa XMMWORD [XMMBLOCK(1,0,edi,SIZEOF_JCOEF)], xmm2
+
+ add esi, byte 16*SIZEOF_FAST_FLOAT
+ add edx, byte 16*SIZEOF_FAST_FLOAT
+ add edi, byte 16*SIZEOF_JCOEF
+ dec eax
+ jnz short .quantloop
+
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; unused
+; pop ebx ; unused
+ pop ebp
+ ret
+
--- /dev/null
+;
+; jcqnts2i.asm - sample data conversion and quantization (SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; Based on
+; 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
+;
+; [TAB8]
+
+%include "simd/jsimdext.inc"
+%include "simd/jdct.inc"
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Load data into workspace, applying unsigned->signed conversion
+;
+; GLOBAL(void)
+; jsimd_convsamp_sse2 (JSAMPARRAY sample_data, JDIMENSION start_col,
+; DCTELEM * workspace);
+;
+
+%define sample_data ebp+8 ; JSAMPARRAY sample_data
+%define start_col ebp+12 ; JDIMENSION start_col
+%define workspace ebp+16 ; DCTELEM * workspace
+
+ align 16
+ global EXTN(jsimd_convsamp_sse2)
+
+EXTN(jsimd_convsamp_sse2):
+ push ebp
+ mov ebp,esp
+ push ebx
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ pxor xmm6,xmm6 ; xmm6=(all 0's)
+ pcmpeqw xmm7,xmm7
+ psllw xmm7,7 ; xmm7={0xFF80 0xFF80 0xFF80 0xFF80 ..}
+
+ mov esi, JSAMPARRAY [sample_data] ; (JSAMPROW *)
+ mov eax, JDIMENSION [start_col]
+ mov edi, POINTER [workspace] ; (DCTELEM *)
+ mov ecx, DCTSIZE/4
+ alignx 16,7
+.convloop:
+ mov ebx, JSAMPROW [esi+0*SIZEOF_JSAMPROW] ; (JSAMPLE *)
+ mov edx, JSAMPROW [esi+1*SIZEOF_JSAMPROW] ; (JSAMPLE *)
+
+ movq xmm0, XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE] ; xmm0=(01234567)
+ movq xmm1, XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE] ; xmm1=(89ABCDEF)
+
+ mov ebx, JSAMPROW [esi+2*SIZEOF_JSAMPROW] ; (JSAMPLE *)
+ mov edx, JSAMPROW [esi+3*SIZEOF_JSAMPROW] ; (JSAMPLE *)
+
+ movq xmm2, XMM_MMWORD [ebx+eax*SIZEOF_JSAMPLE] ; xmm2=(GHIJKLMN)
+ movq xmm3, XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE] ; xmm3=(OPQRSTUV)
+
+ punpcklbw xmm0,xmm6 ; xmm0=(01234567)
+ punpcklbw xmm1,xmm6 ; xmm1=(89ABCDEF)
+ paddw xmm0,xmm7
+ paddw xmm1,xmm7
+ punpcklbw xmm2,xmm6 ; xmm2=(GHIJKLMN)
+ punpcklbw xmm3,xmm6 ; xmm3=(OPQRSTUV)
+ paddw xmm2,xmm7
+ paddw xmm3,xmm7
+
+ movdqa XMMWORD [XMMBLOCK(0,0,edi,SIZEOF_DCTELEM)], xmm0
+ movdqa XMMWORD [XMMBLOCK(1,0,edi,SIZEOF_DCTELEM)], xmm1
+ movdqa XMMWORD [XMMBLOCK(2,0,edi,SIZEOF_DCTELEM)], xmm2
+ movdqa XMMWORD [XMMBLOCK(3,0,edi,SIZEOF_DCTELEM)], xmm3
+
+ add esi, byte 4*SIZEOF_JSAMPROW
+ add edi, byte 4*DCTSIZE*SIZEOF_DCTELEM
+ dec ecx
+ jnz short .convloop
+
+ 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
+;
+; This implementation is based on an algorithm described in
+; "How to optimize for the Pentium family of microprocessors"
+; (http://www.agner.org/assem/).
+;
+; GLOBAL(void)
+; jsimd_quantize_sse2 (JCOEFPTR coef_block, DCTELEM * divisors,
+; DCTELEM * workspace);
+;
+
+%define RECIPROCAL(m,n,b) XMMBLOCK(DCTSIZE*0+(m),(n),(b),SIZEOF_DCTELEM)
+%define CORRECTION(m,n,b) XMMBLOCK(DCTSIZE*1+(m),(n),(b),SIZEOF_DCTELEM)
+%define SCALE(m,n,b) XMMBLOCK(DCTSIZE*2+(m),(n),(b),SIZEOF_DCTELEM)
+
+%define coef_block ebp+8 ; JCOEFPTR coef_block
+%define divisors ebp+12 ; DCTELEM * divisors
+%define workspace ebp+16 ; DCTELEM * workspace
+
+ align 16
+ global EXTN(jsimd_quantize_sse2)
+
+EXTN(jsimd_quantize_sse2):
+ push ebp
+ mov ebp,esp
+; push ebx ; unused
+; push ecx ; unused
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ mov esi, POINTER [workspace]
+ mov edx, POINTER [divisors]
+ mov edi, JCOEFPTR [coef_block]
+ mov eax, DCTSIZE2/32
+ alignx 16,7
+.quantloop:
+ movdqa xmm4, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_DCTELEM)]
+ movdqa xmm5, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_DCTELEM)]
+ movdqa xmm6, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_DCTELEM)]
+ movdqa xmm7, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_DCTELEM)]
+ movdqa xmm0,xmm4
+ movdqa xmm1,xmm5
+ movdqa xmm2,xmm6
+ movdqa xmm3,xmm7
+ psraw xmm4,(WORD_BIT-1)
+ psraw xmm5,(WORD_BIT-1)
+ psraw xmm6,(WORD_BIT-1)
+ psraw xmm7,(WORD_BIT-1)
+ pxor xmm0,xmm4
+ pxor xmm1,xmm5
+ pxor xmm2,xmm6
+ pxor xmm3,xmm7
+ psubw xmm0,xmm4 ; if (xmm0 < 0) xmm0 = -xmm0;
+ psubw xmm1,xmm5 ; if (xmm1 < 0) xmm1 = -xmm1;
+ psubw xmm2,xmm6 ; if (xmm2 < 0) xmm2 = -xmm2;
+ psubw xmm3,xmm7 ; if (xmm3 < 0) xmm3 = -xmm3;
+
+ paddw xmm0, XMMWORD [CORRECTION(0,0,edx)] ; correction + roundfactor
+ paddw xmm1, XMMWORD [CORRECTION(1,0,edx)]
+ paddw xmm2, XMMWORD [CORRECTION(2,0,edx)]
+ paddw xmm3, XMMWORD [CORRECTION(3,0,edx)]
+ pmulhuw xmm0, XMMWORD [RECIPROCAL(0,0,edx)] ; reciprocal
+ pmulhuw xmm1, XMMWORD [RECIPROCAL(1,0,edx)]
+ pmulhuw xmm2, XMMWORD [RECIPROCAL(2,0,edx)]
+ pmulhuw xmm3, XMMWORD [RECIPROCAL(3,0,edx)]
+ pmulhuw xmm0, XMMWORD [SCALE(0,0,edx)] ; scale
+ pmulhuw xmm1, XMMWORD [SCALE(1,0,edx)]
+ pmulhuw xmm2, XMMWORD [SCALE(2,0,edx)]
+ pmulhuw xmm3, XMMWORD [SCALE(3,0,edx)]
+
+ pxor xmm0,xmm4
+ pxor xmm1,xmm5
+ pxor xmm2,xmm6
+ pxor xmm3,xmm7
+ psubw xmm0,xmm4
+ psubw xmm1,xmm5
+ psubw xmm2,xmm6
+ psubw xmm3,xmm7
+ movdqa XMMWORD [XMMBLOCK(0,0,edi,SIZEOF_DCTELEM)], xmm0
+ movdqa XMMWORD [XMMBLOCK(1,0,edi,SIZEOF_DCTELEM)], xmm1
+ movdqa XMMWORD [XMMBLOCK(2,0,edi,SIZEOF_DCTELEM)], xmm2
+ movdqa XMMWORD [XMMBLOCK(3,0,edi,SIZEOF_DCTELEM)], xmm3
+
+ add esi, byte 32*SIZEOF_DCTELEM
+ add edx, byte 32*SIZEOF_DCTELEM
+ add edi, byte 32*SIZEOF_JCOEF
+ dec eax
+ jnz near .quantloop
+
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; unused
+; pop ebx ; unused
+ pop ebp
+ ret
+
--- /dev/null
+;
+; jcsamss2.asm - downsampling (SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; Based on
+; 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
+;
+; [TAB8]
+
+%include "simd/jsimdext.inc"
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Downsample pixel values of a single component.
+; This version handles the common case of 2:1 horizontal and 1:1 vertical,
+; without smoothing.
+;
+; GLOBAL(void)
+; jsimd_h2v1_downsample_sse2 (JDIMENSION image_width, int max_v_samp_factor,
+; JDIMENSION v_samp_factor, JDIMENSION width_blocks,
+; JSAMPARRAY input_data, JSAMPARRAY output_data);
+;
+
+%define img_width(b) (b)+8 ; JDIMENSION image_width
+%define max_v_samp(b) (b)+12 ; int max_v_samp_factor
+%define v_samp(b) (b)+16 ; JDIMENSION v_samp_factor
+%define width_blks(b) (b)+20 ; JDIMENSION width_blocks
+%define input_data(b) (b)+24 ; JSAMPARRAY input_data
+%define output_data(b) (b)+28 ; JSAMPARRAY output_data
+
+ align 16
+ global EXTN(jsimd_h2v1_downsample_sse2)
+
+EXTN(jsimd_h2v1_downsample_sse2):
+ push ebp
+ mov ebp,esp
+; push ebx ; unused
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ mov ecx, JDIMENSION [width_blks(ebp)]
+ shl ecx,3 ; imul ecx,DCTSIZE (ecx = output_cols)
+ jz near .return
+
+ mov edx, JDIMENSION [img_width(ebp)]
+
+ ; -- expand_right_edge
+
+ push ecx
+ shl ecx,1 ; output_cols * 2
+ sub ecx,edx
+ jle short .expand_end
+
+ mov eax, INT [max_v_samp(ebp)]
+ test eax,eax
+ jle short .expand_end
+
+ cld
+ mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
+ alignx 16,7
+.expandloop:
+ push eax
+ push ecx
+
+ mov edi, JSAMPROW [esi]
+ add edi,edx
+ mov al, JSAMPLE [edi-1]
+
+ rep stosb
+
+ pop ecx
+ pop eax
+
+ add esi, byte SIZEOF_JSAMPROW
+ dec eax
+ jg short .expandloop
+
+.expand_end:
+ pop ecx ; output_cols
+
+ ; -- h2v1_downsample
+
+ mov eax, JDIMENSION [v_samp(ebp)] ; rowctr
+ test eax,eax
+ jle near .return
+
+ mov edx, 0x00010000 ; bias pattern
+ movd xmm7,edx
+ pcmpeqw xmm6,xmm6
+ pshufd xmm7,xmm7,0x00 ; xmm7={0, 1, 0, 1, 0, 1, 0, 1}
+ psrlw xmm6,BYTE_BIT ; xmm6={0xFF 0x00 0xFF 0x00 ..}
+
+ mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
+ mov edi, JSAMPARRAY [output_data(ebp)] ; output_data
+ alignx 16,7
+.rowloop:
+ push ecx
+ push edi
+ push esi
+
+ mov esi, JSAMPROW [esi] ; inptr
+ mov edi, JSAMPROW [edi] ; outptr
+
+ cmp ecx, byte SIZEOF_XMMWORD
+ jae short .columnloop
+ alignx 16,7
+
+.columnloop_r8:
+ movdqa xmm0, XMMWORD [esi+0*SIZEOF_XMMWORD]
+ pxor xmm1,xmm1
+ mov ecx, SIZEOF_XMMWORD
+ jmp short .downsample
+ alignx 16,7
+
+.columnloop:
+ movdqa xmm0, XMMWORD [esi+0*SIZEOF_XMMWORD]
+ movdqa xmm1, XMMWORD [esi+1*SIZEOF_XMMWORD]
+
+.downsample:
+ movdqa xmm2,xmm0
+ movdqa xmm3,xmm1
+
+ pand xmm0,xmm6
+ psrlw xmm2,BYTE_BIT
+ pand xmm1,xmm6
+ psrlw xmm3,BYTE_BIT
+
+ paddw xmm0,xmm2
+ paddw xmm1,xmm3
+ paddw xmm0,xmm7
+ paddw xmm1,xmm7
+ psrlw xmm0,1
+ psrlw xmm1,1
+
+ packuswb xmm0,xmm1
+
+ movdqa XMMWORD [edi+0*SIZEOF_XMMWORD], xmm0
+
+ sub ecx, byte SIZEOF_XMMWORD ; outcol
+ add esi, byte 2*SIZEOF_XMMWORD ; inptr
+ add edi, byte 1*SIZEOF_XMMWORD ; outptr
+ cmp ecx, byte SIZEOF_XMMWORD
+ jae short .columnloop
+ test ecx,ecx
+ jnz short .columnloop_r8
+
+ pop esi
+ pop edi
+ pop ecx
+
+ add esi, byte SIZEOF_JSAMPROW ; input_data
+ add edi, byte SIZEOF_JSAMPROW ; output_data
+ dec eax ; rowctr
+ jg near .rowloop
+
+.return:
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; need not be preserved
+; pop ebx ; unused
+ pop ebp
+ ret
+
+; --------------------------------------------------------------------------
+;
+; Downsample pixel values of a single component.
+; This version handles the standard case of 2:1 horizontal and 2:1 vertical,
+; without smoothing.
+;
+; GLOBAL(void)
+; jsimd_h2v2_downsample_sse2 (JDIMENSION image_width, int max_v_samp_factor,
+; JDIMENSION v_samp_factor, JDIMENSION width_blocks,
+; JSAMPARRAY input_data, JSAMPARRAY output_data);
+;
+
+%define img_width(b) (b)+8 ; JDIMENSION image_width
+%define max_v_samp(b) (b)+12 ; int max_v_samp_factor
+%define v_samp(b) (b)+16 ; JDIMENSION v_samp_factor
+%define width_blks(b) (b)+20 ; JDIMENSION width_blocks
+%define input_data(b) (b)+24 ; JSAMPARRAY input_data
+%define output_data(b) (b)+28 ; JSAMPARRAY output_data
+
+ align 16
+ global EXTN(jsimd_h2v2_downsample_sse2)
+
+EXTN(jsimd_h2v2_downsample_sse2):
+ push ebp
+ mov ebp,esp
+; push ebx ; unused
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ mov ecx, JDIMENSION [width_blks(ebp)]
+ shl ecx,3 ; imul ecx,DCTSIZE (ecx = output_cols)
+ jz near .return
+
+ mov edx, JDIMENSION [img_width(ebp)]
+
+ ; -- expand_right_edge
+
+ push ecx
+ shl ecx,1 ; output_cols * 2
+ sub ecx,edx
+ jle short .expand_end
+
+ mov eax, INT [max_v_samp(ebp)]
+ test eax,eax
+ jle short .expand_end
+
+ cld
+ mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
+ alignx 16,7
+.expandloop:
+ push eax
+ push ecx
+
+ mov edi, JSAMPROW [esi]
+ add edi,edx
+ mov al, JSAMPLE [edi-1]
+
+ rep stosb
+
+ pop ecx
+ pop eax
+
+ add esi, byte SIZEOF_JSAMPROW
+ dec eax
+ jg short .expandloop
+
+.expand_end:
+ pop ecx ; output_cols
+
+ ; -- h2v2_downsample
+
+ mov eax, JDIMENSION [v_samp(ebp)] ; rowctr
+ test eax,eax
+ jle near .return
+
+ mov edx, 0x00020001 ; bias pattern
+ movd xmm7,edx
+ pcmpeqw xmm6,xmm6
+ pshufd xmm7,xmm7,0x00 ; xmm7={1, 2, 1, 2, 1, 2, 1, 2}
+ psrlw xmm6,BYTE_BIT ; xmm6={0xFF 0x00 0xFF 0x00 ..}
+
+ mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
+ mov edi, JSAMPARRAY [output_data(ebp)] ; output_data
+ alignx 16,7
+.rowloop:
+ push ecx
+ push edi
+ push esi
+
+ mov edx, JSAMPROW [esi+0*SIZEOF_JSAMPROW] ; inptr0
+ mov esi, JSAMPROW [esi+1*SIZEOF_JSAMPROW] ; inptr1
+ mov edi, JSAMPROW [edi] ; outptr
+
+ cmp ecx, byte SIZEOF_XMMWORD
+ jae short .columnloop
+ alignx 16,7
+
+.columnloop_r8:
+ movdqa xmm0, XMMWORD [edx+0*SIZEOF_XMMWORD]
+ movdqa xmm1, XMMWORD [esi+0*SIZEOF_XMMWORD]
+ pxor xmm2,xmm2
+ pxor xmm3,xmm3
+ mov ecx, SIZEOF_XMMWORD
+ jmp short .downsample
+ alignx 16,7
+
+.columnloop:
+ movdqa xmm0, XMMWORD [edx+0*SIZEOF_XMMWORD]
+ movdqa xmm1, XMMWORD [esi+0*SIZEOF_XMMWORD]
+ movdqa xmm2, XMMWORD [edx+1*SIZEOF_XMMWORD]
+ movdqa xmm3, XMMWORD [esi+1*SIZEOF_XMMWORD]
+
+.downsample:
+ movdqa xmm4,xmm0
+ movdqa xmm5,xmm1
+ pand xmm0,xmm6
+ psrlw xmm4,BYTE_BIT
+ pand xmm1,xmm6
+ psrlw xmm5,BYTE_BIT
+ paddw xmm0,xmm4
+ paddw xmm1,xmm5
+
+ movdqa xmm4,xmm2
+ movdqa xmm5,xmm3
+ pand xmm2,xmm6
+ psrlw xmm4,BYTE_BIT
+ pand xmm3,xmm6
+ psrlw xmm5,BYTE_BIT
+ paddw xmm2,xmm4
+ paddw xmm3,xmm5
+
+ paddw xmm0,xmm1
+ paddw xmm2,xmm3
+ paddw xmm0,xmm7
+ paddw xmm2,xmm7
+ psrlw xmm0,2
+ psrlw xmm2,2
+
+ packuswb xmm0,xmm2
+
+ movdqa XMMWORD [edi+0*SIZEOF_XMMWORD], xmm0
+
+ sub ecx, byte SIZEOF_XMMWORD ; outcol
+ add edx, byte 2*SIZEOF_XMMWORD ; inptr0
+ add esi, byte 2*SIZEOF_XMMWORD ; inptr1
+ add edi, byte 1*SIZEOF_XMMWORD ; outptr
+ cmp ecx, byte SIZEOF_XMMWORD
+ jae near .columnloop
+ test ecx,ecx
+ jnz near .columnloop_r8
+
+ pop esi
+ pop edi
+ pop ecx
+
+ add esi, byte 2*SIZEOF_JSAMPROW ; input_data
+ add edi, byte 1*SIZEOF_JSAMPROW ; output_data
+ dec eax ; rowctr
+ jg near .rowloop
+
+.return:
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; need not be preserved
+; pop ebx ; unused
+ pop ebp
+ ret
+
--- /dev/null
+;
+; jdcolss2.asm - colorspace conversion (SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; Based on
+; 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
+;
+; [TAB8]
+
+%include "simd/jsimdext.inc"
+%include "simd/jcolsamp.inc"
+
+; --------------------------------------------------------------------------
+
+%define SCALEBITS 16
+
+F_0_344 equ 22554 ; FIX(0.34414)
+F_0_714 equ 46802 ; FIX(0.71414)
+F_1_402 equ 91881 ; FIX(1.40200)
+F_1_772 equ 116130 ; FIX(1.77200)
+F_0_402 equ (F_1_402 - 65536) ; FIX(1.40200) - FIX(1)
+F_0_285 equ ( 65536 - F_0_714) ; FIX(1) - FIX(0.71414)
+F_0_228 equ (131072 - F_1_772) ; FIX(2) - FIX(1.77200)
+
+; --------------------------------------------------------------------------
+ SECTION SEG_CONST
+
+ alignz 16
+ global EXTN(jconst_ycc_rgb_convert_sse2)
+
+EXTN(jconst_ycc_rgb_convert_sse2):
+
+PW_F0402 times 8 dw F_0_402
+PW_MF0228 times 8 dw -F_0_228
+PW_MF0344_F0285 times 4 dw -F_0_344, F_0_285
+PW_ONE times 8 dw 1
+PD_ONEHALF times 4 dd 1 << (SCALEBITS-1)
+
+ alignz 16
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Convert some rows of samples to the output colorspace.
+;
+; GLOBAL(void)
+; jsimd_ycc_rgb_convert_sse2 (JDIMENSION out_width,
+; JSAMPIMAGE input_buf, JDIMENSION input_row,
+; JSAMPARRAY output_buf, int num_rows)
+;
+
+%define out_width(b) (b)+8 ; JDIMENSION out_width
+%define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf
+%define input_row(b) (b)+16 ; JDIMENSION input_row
+%define output_buf(b) (b)+20 ; JSAMPARRAY output_buf
+%define num_rows(b) (b)+24 ; int num_rows
+
+%define original_ebp ebp+0
+%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
+%define WK_NUM 2
+%define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr
+
+ align 16
+ global EXTN(jsimd_ycc_rgb_convert_sse2)
+
+EXTN(jsimd_ycc_rgb_convert_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, [wk(0)]
+ pushpic eax ; make a room for GOT address
+ push ebx
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ get_GOT ebx ; get GOT address
+ movpic POINTER [gotptr], ebx ; save GOT address
+
+ mov ecx, JDIMENSION [out_width(eax)] ; num_cols
+ test ecx,ecx
+ jz near .return
+
+ push ecx
+
+ mov edi, JSAMPIMAGE [input_buf(eax)]
+ mov ecx, JDIMENSION [input_row(eax)]
+ mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
+ mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
+ mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
+ lea esi, [esi+ecx*SIZEOF_JSAMPROW]
+ lea ebx, [ebx+ecx*SIZEOF_JSAMPROW]
+ lea edx, [edx+ecx*SIZEOF_JSAMPROW]
+
+ pop ecx
+
+ mov edi, JSAMPARRAY [output_buf(eax)]
+ mov eax, INT [num_rows(eax)]
+ test eax,eax
+ jle near .return
+ alignx 16,7
+.rowloop:
+ push eax
+ push edi
+ push edx
+ push ebx
+ push esi
+ push ecx ; col
+
+ mov esi, JSAMPROW [esi] ; inptr0
+ mov ebx, JSAMPROW [ebx] ; inptr1
+ mov edx, JSAMPROW [edx] ; inptr2
+ mov edi, JSAMPROW [edi] ; outptr
+ movpic eax, POINTER [gotptr] ; load GOT address (eax)
+ alignx 16,7
+.columnloop:
+
+ movdqa xmm5, XMMWORD [ebx] ; xmm5=Cb(0123456789ABCDEF)
+ movdqa xmm1, XMMWORD [edx] ; xmm1=Cr(0123456789ABCDEF)
+
+ pcmpeqw xmm4,xmm4
+ pcmpeqw xmm7,xmm7
+ psrlw xmm4,BYTE_BIT
+ psllw xmm7,7 ; xmm7={0xFF80 0xFF80 0xFF80 0xFF80 ..}
+ movdqa xmm0,xmm4 ; xmm0=xmm4={0xFF 0x00 0xFF 0x00 ..}
+
+ pand xmm4,xmm5 ; xmm4=Cb(02468ACE)=CbE
+ psrlw xmm5,BYTE_BIT ; xmm5=Cb(13579BDF)=CbO
+ pand xmm0,xmm1 ; xmm0=Cr(02468ACE)=CrE
+ psrlw xmm1,BYTE_BIT ; xmm1=Cr(13579BDF)=CrO
+
+ paddw xmm4,xmm7
+ paddw xmm5,xmm7
+ paddw xmm0,xmm7
+ paddw xmm1,xmm7
+
+ ; (Original)
+ ; R = Y + 1.40200 * Cr
+ ; G = Y - 0.34414 * Cb - 0.71414 * Cr
+ ; B = Y + 1.77200 * Cb
+ ;
+ ; (This implementation)
+ ; R = Y + 0.40200 * Cr + Cr
+ ; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr
+ ; B = Y - 0.22800 * Cb + Cb + Cb
+
+ movdqa xmm2,xmm4 ; xmm2=CbE
+ movdqa xmm3,xmm5 ; xmm3=CbO
+ paddw xmm4,xmm4 ; xmm4=2*CbE
+ paddw xmm5,xmm5 ; xmm5=2*CbO
+ movdqa xmm6,xmm0 ; xmm6=CrE
+ movdqa xmm7,xmm1 ; xmm7=CrO
+ paddw xmm0,xmm0 ; xmm0=2*CrE
+ paddw xmm1,xmm1 ; xmm1=2*CrO
+
+ pmulhw xmm4,[GOTOFF(eax,PW_MF0228)] ; xmm4=(2*CbE * -FIX(0.22800))
+ pmulhw xmm5,[GOTOFF(eax,PW_MF0228)] ; xmm5=(2*CbO * -FIX(0.22800))
+ pmulhw xmm0,[GOTOFF(eax,PW_F0402)] ; xmm0=(2*CrE * FIX(0.40200))
+ pmulhw xmm1,[GOTOFF(eax,PW_F0402)] ; xmm1=(2*CrO * FIX(0.40200))
+
+ paddw xmm4,[GOTOFF(eax,PW_ONE)]
+ paddw xmm5,[GOTOFF(eax,PW_ONE)]
+ psraw xmm4,1 ; xmm4=(CbE * -FIX(0.22800))
+ psraw xmm5,1 ; xmm5=(CbO * -FIX(0.22800))
+ paddw xmm0,[GOTOFF(eax,PW_ONE)]
+ paddw xmm1,[GOTOFF(eax,PW_ONE)]
+ psraw xmm0,1 ; xmm0=(CrE * FIX(0.40200))
+ psraw xmm1,1 ; xmm1=(CrO * FIX(0.40200))
+
+ paddw xmm4,xmm2
+ paddw xmm5,xmm3
+ paddw xmm4,xmm2 ; xmm4=(CbE * FIX(1.77200))=(B-Y)E
+ paddw xmm5,xmm3 ; xmm5=(CbO * FIX(1.77200))=(B-Y)O
+ paddw xmm0,xmm6 ; xmm0=(CrE * FIX(1.40200))=(R-Y)E
+ paddw xmm1,xmm7 ; xmm1=(CrO * FIX(1.40200))=(R-Y)O
+
+ movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=(B-Y)E
+ movdqa XMMWORD [wk(1)], xmm5 ; wk(1)=(B-Y)O
+
+ movdqa xmm4,xmm2
+ movdqa xmm5,xmm3
+ punpcklwd xmm2,xmm6
+ punpckhwd xmm4,xmm6
+ pmaddwd xmm2,[GOTOFF(eax,PW_MF0344_F0285)]
+ pmaddwd xmm4,[GOTOFF(eax,PW_MF0344_F0285)]
+ punpcklwd xmm3,xmm7
+ punpckhwd xmm5,xmm7
+ pmaddwd xmm3,[GOTOFF(eax,PW_MF0344_F0285)]
+ pmaddwd xmm5,[GOTOFF(eax,PW_MF0344_F0285)]
+
+ paddd xmm2,[GOTOFF(eax,PD_ONEHALF)]
+ paddd xmm4,[GOTOFF(eax,PD_ONEHALF)]
+ psrad xmm2,SCALEBITS
+ psrad xmm4,SCALEBITS
+ paddd xmm3,[GOTOFF(eax,PD_ONEHALF)]
+ paddd xmm5,[GOTOFF(eax,PD_ONEHALF)]
+ psrad xmm3,SCALEBITS
+ psrad xmm5,SCALEBITS
+
+ packssdw xmm2,xmm4 ; xmm2=CbE*-FIX(0.344)+CrE*FIX(0.285)
+ packssdw xmm3,xmm5 ; xmm3=CbO*-FIX(0.344)+CrO*FIX(0.285)
+ psubw xmm2,xmm6 ; xmm2=CbE*-FIX(0.344)+CrE*-FIX(0.714)=(G-Y)E
+ psubw xmm3,xmm7 ; xmm3=CbO*-FIX(0.344)+CrO*-FIX(0.714)=(G-Y)O
+
+ movdqa xmm5, XMMWORD [esi] ; xmm5=Y(0123456789ABCDEF)
+
+ pcmpeqw xmm4,xmm4
+ psrlw xmm4,BYTE_BIT ; xmm4={0xFF 0x00 0xFF 0x00 ..}
+ pand xmm4,xmm5 ; xmm4=Y(02468ACE)=YE
+ psrlw xmm5,BYTE_BIT ; xmm5=Y(13579BDF)=YO
+
+ paddw xmm0,xmm4 ; xmm0=((R-Y)E+YE)=RE=R(02468ACE)
+ paddw xmm1,xmm5 ; xmm1=((R-Y)O+YO)=RO=R(13579BDF)
+ packuswb xmm0,xmm0 ; xmm0=R(02468ACE********)
+ packuswb xmm1,xmm1 ; xmm1=R(13579BDF********)
+
+ paddw xmm2,xmm4 ; xmm2=((G-Y)E+YE)=GE=G(02468ACE)
+ paddw xmm3,xmm5 ; xmm3=((G-Y)O+YO)=GO=G(13579BDF)
+ packuswb xmm2,xmm2 ; xmm2=G(02468ACE********)
+ packuswb xmm3,xmm3 ; xmm3=G(13579BDF********)
+
+ paddw xmm4, XMMWORD [wk(0)] ; xmm4=(YE+(B-Y)E)=BE=B(02468ACE)
+ paddw xmm5, XMMWORD [wk(1)] ; xmm5=(YO+(B-Y)O)=BO=B(13579BDF)
+ packuswb xmm4,xmm4 ; xmm4=B(02468ACE********)
+ packuswb xmm5,xmm5 ; xmm5=B(13579BDF********)
+
+%if RGB_PIXELSIZE == 3 ; ---------------
+
+ ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
+ ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
+ ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
+ ; xmmG=(** ** ** ** ** ** ** ** **), xmmH=(** ** ** ** ** ** ** ** **)
+
+ punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
+ punpcklbw xmmE,xmmB ; xmmE=(20 01 22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F)
+ punpcklbw xmmD,xmmF ; xmmD=(11 21 13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F)
+
+ movdqa xmmG,xmmA
+ movdqa xmmH,xmmA
+ punpcklwd xmmA,xmmE ; xmmA=(00 10 20 01 02 12 22 03 04 14 24 05 06 16 26 07)
+ punpckhwd xmmG,xmmE ; xmmG=(08 18 28 09 0A 1A 2A 0B 0C 1C 2C 0D 0E 1E 2E 0F)
+
+ psrldq xmmH,2 ; xmmH=(02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E -- --)
+ psrldq xmmE,2 ; xmmE=(22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F -- --)
+
+ movdqa xmmC,xmmD
+ movdqa xmmB,xmmD
+ punpcklwd xmmD,xmmH ; xmmD=(11 21 02 12 13 23 04 14 15 25 06 16 17 27 08 18)
+ punpckhwd xmmC,xmmH ; xmmC=(19 29 0A 1A 1B 2B 0C 1C 1D 2D 0E 1E 1F 2F -- --)
+
+ psrldq xmmB,2 ; xmmB=(13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F -- --)
+
+ movdqa xmmF,xmmE
+ punpcklwd xmmE,xmmB ; xmmE=(22 03 13 23 24 05 15 25 26 07 17 27 28 09 19 29)
+ punpckhwd xmmF,xmmB ; xmmF=(2A 0B 1B 2B 2C 0D 1D 2D 2E 0F 1F 2F -- -- -- --)
+
+ pshufd xmmH,xmmA,0x4E; xmmH=(04 14 24 05 06 16 26 07 00 10 20 01 02 12 22 03)
+ movdqa xmmB,xmmE
+ punpckldq xmmA,xmmD ; xmmA=(00 10 20 01 11 21 02 12 02 12 22 03 13 23 04 14)
+ punpckldq xmmE,xmmH ; xmmE=(22 03 13 23 04 14 24 05 24 05 15 25 06 16 26 07)
+ punpckhdq xmmD,xmmB ; xmmD=(15 25 06 16 26 07 17 27 17 27 08 18 28 09 19 29)
+
+ pshufd xmmH,xmmG,0x4E; xmmH=(0C 1C 2C 0D 0E 1E 2E 0F 08 18 28 09 0A 1A 2A 0B)
+ movdqa xmmB,xmmF
+ punpckldq xmmG,xmmC ; xmmG=(08 18 28 09 19 29 0A 1A 0A 1A 2A 0B 1B 2B 0C 1C)
+ punpckldq xmmF,xmmH ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 2C 0D 1D 2D 0E 1E 2E 0F)
+ punpckhdq xmmC,xmmB ; xmmC=(1D 2D 0E 1E 2E 0F 1F 2F 1F 2F -- -- -- -- -- --)
+
+ punpcklqdq xmmA,xmmE ; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05)
+ punpcklqdq xmmD,xmmG ; xmmD=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A)
+ punpcklqdq xmmF,xmmC ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F)
+
+ cmp ecx, byte SIZEOF_XMMWORD
+ jb short .column_st32
+
+ test edi, SIZEOF_XMMWORD-1
+ jnz short .out1
+ ; --(aligned)-------------------
+ movntdq XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
+ movntdq XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
+ movntdq XMMWORD [edi+2*SIZEOF_XMMWORD], xmmF
+ add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
+ jmp short .out0
+.out1: ; --(unaligned)-----------------
+ pcmpeqb xmmH,xmmH ; xmmH=(all 1's)
+ maskmovdqu xmmA,xmmH ; movntdqu XMMWORD [edi], xmmA
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmD,xmmH ; movntdqu XMMWORD [edi], xmmD
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmF,xmmH ; movntdqu XMMWORD [edi], xmmF
+ add edi, byte SIZEOF_XMMWORD ; outptr
+.out0:
+ sub ecx, byte SIZEOF_XMMWORD
+ jz near .nextrow
+
+ add esi, byte SIZEOF_XMMWORD ; inptr0
+ add ebx, byte SIZEOF_XMMWORD ; inptr1
+ add edx, byte SIZEOF_XMMWORD ; inptr2
+ jmp near .columnloop
+ alignx 16,7
+
+.column_st32:
+ pcmpeqb xmmH,xmmH ; xmmH=(all 1's)
+ lea ecx, [ecx+ecx*2] ; imul ecx, RGB_PIXELSIZE
+ cmp ecx, byte 2*SIZEOF_XMMWORD
+ jb short .column_st16
+ maskmovdqu xmmA,xmmH ; movntdqu XMMWORD [edi], xmmA
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmD,xmmH ; movntdqu XMMWORD [edi], xmmD
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ movdqa xmmA,xmmF
+ sub ecx, byte 2*SIZEOF_XMMWORD
+ jmp short .column_st15
+.column_st16:
+ cmp ecx, byte SIZEOF_XMMWORD
+ jb short .column_st15
+ maskmovdqu xmmA,xmmH ; movntdqu XMMWORD [edi], xmmA
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ movdqa xmmA,xmmD
+ sub ecx, byte SIZEOF_XMMWORD
+.column_st15:
+ mov eax,ecx
+ xor ecx, byte 0x0F
+ shl ecx, 2
+ movd xmmB,ecx
+ psrlq xmmH,4
+ pcmpeqb xmmE,xmmE
+ psrlq xmmH,xmmB
+ psrlq xmmE,xmmB
+ punpcklbw xmmE,xmmH
+ ; ----------------
+ mov ecx,edi
+ and ecx, byte SIZEOF_XMMWORD-1
+ jz short .adj0
+ add eax,ecx
+ cmp eax, byte SIZEOF_XMMWORD
+ ja short .adj0
+ and edi, byte (-SIZEOF_XMMWORD) ; align to 16-byte boundary
+ shl ecx, 3 ; pslldq xmmA,ecx & pslldq xmmE,ecx
+ movdqa xmmG,xmmA
+ movdqa xmmC,xmmE
+ pslldq xmmA, SIZEOF_XMMWORD/2
+ pslldq xmmE, SIZEOF_XMMWORD/2
+ movd xmmD,ecx
+ sub ecx, byte (SIZEOF_XMMWORD/2)*BYTE_BIT
+ jb short .adj1
+ movd xmmF,ecx
+ psllq xmmA,xmmF
+ psllq xmmE,xmmF
+ jmp short .adj0
+.adj1: neg ecx
+ movd xmmF,ecx
+ psrlq xmmA,xmmF
+ psrlq xmmE,xmmF
+ psllq xmmG,xmmD
+ psllq xmmC,xmmD
+ por xmmA,xmmG
+ por xmmE,xmmC
+.adj0: ; ----------------
+ maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
+
+%else ; RGB_PIXELSIZE == 4 ; -----------
+
+%ifdef RGBX_FILLER_0XFF
+ pcmpeqb xmm6,xmm6 ; xmm6=XE=X(02468ACE********)
+ pcmpeqb xmm7,xmm7 ; xmm7=XO=X(13579BDF********)
+%else
+ pxor xmm6,xmm6 ; xmm6=XE=X(02468ACE********)
+ pxor xmm7,xmm7 ; xmm7=XO=X(13579BDF********)
+%endif
+ ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
+ ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
+ ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
+ ; xmmG=(30 32 34 36 38 3A 3C 3E **), xmmH=(31 33 35 37 39 3B 3D 3F **)
+
+ punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
+ punpcklbw xmmE,xmmG ; xmmE=(20 30 22 32 24 34 26 36 28 38 2A 3A 2C 3C 2E 3E)
+ punpcklbw xmmB,xmmD ; xmmB=(01 11 03 13 05 15 07 17 09 19 0B 1B 0D 1D 0F 1F)
+ punpcklbw xmmF,xmmH ; xmmF=(21 31 23 33 25 35 27 37 29 39 2B 3B 2D 3D 2F 3F)
+
+ movdqa xmmC,xmmA
+ punpcklwd xmmA,xmmE ; xmmA=(00 10 20 30 02 12 22 32 04 14 24 34 06 16 26 36)
+ punpckhwd xmmC,xmmE ; xmmC=(08 18 28 38 0A 1A 2A 3A 0C 1C 2C 3C 0E 1E 2E 3E)
+ movdqa xmmG,xmmB
+ punpcklwd xmmB,xmmF ; xmmB=(01 11 21 31 03 13 23 33 05 15 25 35 07 17 27 37)
+ punpckhwd xmmG,xmmF ; xmmG=(09 19 29 39 0B 1B 2B 3B 0D 1D 2D 3D 0F 1F 2F 3F)
+
+ movdqa xmmD,xmmA
+ punpckldq xmmA,xmmB ; xmmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33)
+ punpckhdq xmmD,xmmB ; xmmD=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37)
+ movdqa xmmH,xmmC
+ punpckldq xmmC,xmmG ; xmmC=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B)
+ punpckhdq xmmH,xmmG ; xmmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F)
+
+ cmp ecx, byte SIZEOF_XMMWORD
+ jb short .column_st32
+
+ test edi, SIZEOF_XMMWORD-1
+ jnz short .out1
+ ; --(aligned)-------------------
+ movntdq XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
+ movntdq XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
+ movntdq XMMWORD [edi+2*SIZEOF_XMMWORD], xmmC
+ movntdq XMMWORD [edi+3*SIZEOF_XMMWORD], xmmH
+ add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
+ jmp short .out0
+.out1: ; --(unaligned)-----------------
+ pcmpeqb xmmE,xmmE ; xmmE=(all 1's)
+ maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmD,xmmE ; movntdqu XMMWORD [edi], xmmD
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmC,xmmE ; movntdqu XMMWORD [edi], xmmC
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmH,xmmE ; movntdqu XMMWORD [edi], xmmH
+ add edi, byte SIZEOF_XMMWORD ; outptr
+.out0:
+ sub ecx, byte SIZEOF_XMMWORD
+ jz near .nextrow
+
+ add esi, byte SIZEOF_XMMWORD ; inptr0
+ add ebx, byte SIZEOF_XMMWORD ; inptr1
+ add edx, byte SIZEOF_XMMWORD ; inptr2
+ jmp near .columnloop
+ alignx 16,7
+
+.column_st32:
+ pcmpeqb xmmE,xmmE ; xmmE=(all 1's)
+ cmp ecx, byte SIZEOF_XMMWORD/2
+ jb short .column_st16
+ maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmD,xmmE ; movntdqu XMMWORD [edi], xmmD
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ movdqa xmmA,xmmC
+ movdqa xmmD,xmmH
+ sub ecx, byte SIZEOF_XMMWORD/2
+.column_st16:
+ cmp ecx, byte SIZEOF_XMMWORD/4
+ jb short .column_st15
+ maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ movdqa xmmA,xmmD
+ sub ecx, byte SIZEOF_XMMWORD/4
+.column_st15:
+ cmp ecx, byte SIZEOF_XMMWORD/16
+ jb short .nextrow
+ mov eax,ecx
+ xor ecx, byte 0x03
+ inc ecx
+ shl ecx, 4
+ movd xmmF,ecx
+ psrlq xmmE,xmmF
+ punpcklbw xmmE,xmmE
+ ; ----------------
+ mov ecx,edi
+ and ecx, byte SIZEOF_XMMWORD-1
+ jz short .adj0
+ lea eax, [ecx+eax*4] ; RGB_PIXELSIZE
+ cmp eax, byte SIZEOF_XMMWORD
+ ja short .adj0
+ and edi, byte (-SIZEOF_XMMWORD) ; align to 16-byte boundary
+ shl ecx, 3 ; pslldq xmmA,ecx & pslldq xmmE,ecx
+ movdqa xmmB,xmmA
+ movdqa xmmG,xmmE
+ pslldq xmmA, SIZEOF_XMMWORD/2
+ pslldq xmmE, SIZEOF_XMMWORD/2
+ movd xmmC,ecx
+ sub ecx, byte (SIZEOF_XMMWORD/2)*BYTE_BIT
+ jb short .adj1
+ movd xmmH,ecx
+ psllq xmmA,xmmH
+ psllq xmmE,xmmH
+ jmp short .adj0
+.adj1: neg ecx
+ movd xmmH,ecx
+ psrlq xmmA,xmmH
+ psrlq xmmE,xmmH
+ psllq xmmB,xmmC
+ psllq xmmG,xmmC
+ por xmmA,xmmB
+ por xmmE,xmmG
+.adj0: ; ----------------
+ maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
+
+%endif ; RGB_PIXELSIZE ; ---------------
+
+ alignx 16,7
+
+.nextrow:
+ pop ecx
+ pop esi
+ pop ebx
+ pop edx
+ pop edi
+ pop eax
+
+ add esi, byte SIZEOF_JSAMPROW
+ add ebx, byte SIZEOF_JSAMPROW
+ add edx, byte SIZEOF_JSAMPROW
+ add edi, byte SIZEOF_JSAMPROW ; output_buf
+ dec eax ; num_rows
+ jg near .rowloop
+
+ sfence ; flush the write buffer
+
+.return:
+ 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
+
--- /dev/null
+;
+; jdmerss2.asm - merged upsampling/color conversion (SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; Based on
+; 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
+;
+; [TAB8]
+
+%include "simd/jsimdext.inc"
+%include "simd/jcolsamp.inc"
+
+; --------------------------------------------------------------------------
+
+%define SCALEBITS 16
+
+F_0_344 equ 22554 ; FIX(0.34414)
+F_0_714 equ 46802 ; FIX(0.71414)
+F_1_402 equ 91881 ; FIX(1.40200)
+F_1_772 equ 116130 ; FIX(1.77200)
+F_0_402 equ (F_1_402 - 65536) ; FIX(1.40200) - FIX(1)
+F_0_285 equ ( 65536 - F_0_714) ; FIX(1) - FIX(0.71414)
+F_0_228 equ (131072 - F_1_772) ; FIX(2) - FIX(1.77200)
+
+; --------------------------------------------------------------------------
+ SECTION SEG_CONST
+
+ alignz 16
+ global EXTN(jconst_merged_upsample_sse2)
+
+EXTN(jconst_merged_upsample_sse2):
+
+PW_F0402 times 8 dw F_0_402
+PW_MF0228 times 8 dw -F_0_228
+PW_MF0344_F0285 times 4 dw -F_0_344, F_0_285
+PW_ONE times 8 dw 1
+PD_ONEHALF times 4 dd 1 << (SCALEBITS-1)
+
+ alignz 16
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical.
+;
+; GLOBAL(void)
+; jsimd_h2v1_merged_upsample_sse2 (JDIMENSION output_width,
+; JSAMPIMAGE input_buf,
+; JDIMENSION in_row_group_ctr,
+; JSAMPARRAY output_buf);
+;
+
+%define output_width(b) (b)+8 ; JDIMENSION output_width
+%define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf
+%define in_row_group_ctr(b) (b)+16 ; JDIMENSION in_row_group_ctr
+%define output_buf(b) (b)+20 ; JSAMPARRAY output_buf
+
+%define original_ebp ebp+0
+%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
+%define WK_NUM 3
+%define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr
+
+ align 16
+ global EXTN(jsimd_h2v1_merged_upsample_sse2)
+
+EXTN(jsimd_h2v1_merged_upsample_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, [wk(0)]
+ pushpic eax ; make a room for GOT address
+ push ebx
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ get_GOT ebx ; get GOT address
+ movpic POINTER [gotptr], ebx ; save GOT address
+
+ mov ecx, JDIMENSION [output_width(eax)] ; col
+ test ecx,ecx
+ jz near .return
+
+ push ecx
+
+ mov edi, JSAMPIMAGE [input_buf(eax)]
+ mov ecx, JDIMENSION [in_row_group_ctr(eax)]
+ mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
+ mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
+ mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
+ mov edi, JSAMPARRAY [output_buf(eax)]
+ mov esi, JSAMPROW [esi+ecx*SIZEOF_JSAMPROW] ; inptr0
+ mov ebx, JSAMPROW [ebx+ecx*SIZEOF_JSAMPROW] ; inptr1
+ mov edx, JSAMPROW [edx+ecx*SIZEOF_JSAMPROW] ; inptr2
+ mov edi, JSAMPROW [edi] ; outptr
+
+ pop ecx ; col
+
+ alignx 16,7
+.columnloop:
+ movpic eax, POINTER [gotptr] ; load GOT address (eax)
+
+ movdqa xmm6, XMMWORD [ebx] ; xmm6=Cb(0123456789ABCDEF)
+ movdqa xmm7, XMMWORD [edx] ; xmm7=Cr(0123456789ABCDEF)
+
+ pxor xmm1,xmm1 ; xmm1=(all 0's)
+ pcmpeqw xmm3,xmm3
+ psllw xmm3,7 ; xmm3={0xFF80 0xFF80 0xFF80 0xFF80 ..}
+
+ movdqa xmm4,xmm6
+ punpckhbw xmm6,xmm1 ; xmm6=Cb(89ABCDEF)=CbH
+ punpcklbw xmm4,xmm1 ; xmm4=Cb(01234567)=CbL
+ movdqa xmm0,xmm7
+ punpckhbw xmm7,xmm1 ; xmm7=Cr(89ABCDEF)=CrH
+ punpcklbw xmm0,xmm1 ; xmm0=Cr(01234567)=CrL
+
+ paddw xmm6,xmm3
+ paddw xmm4,xmm3
+ paddw xmm7,xmm3
+ paddw xmm0,xmm3
+
+ ; (Original)
+ ; R = Y + 1.40200 * Cr
+ ; G = Y - 0.34414 * Cb - 0.71414 * Cr
+ ; B = Y + 1.77200 * Cb
+ ;
+ ; (This implementation)
+ ; R = Y + 0.40200 * Cr + Cr
+ ; G = Y - 0.34414 * Cb + 0.28586 * Cr - Cr
+ ; B = Y - 0.22800 * Cb + Cb + Cb
+
+ movdqa xmm5,xmm6 ; xmm5=CbH
+ movdqa xmm2,xmm4 ; xmm2=CbL
+ paddw xmm6,xmm6 ; xmm6=2*CbH
+ paddw xmm4,xmm4 ; xmm4=2*CbL
+ movdqa xmm1,xmm7 ; xmm1=CrH
+ movdqa xmm3,xmm0 ; xmm3=CrL
+ paddw xmm7,xmm7 ; xmm7=2*CrH
+ paddw xmm0,xmm0 ; xmm0=2*CrL
+
+ pmulhw xmm6,[GOTOFF(eax,PW_MF0228)] ; xmm6=(2*CbH * -FIX(0.22800))
+ pmulhw xmm4,[GOTOFF(eax,PW_MF0228)] ; xmm4=(2*CbL * -FIX(0.22800))
+ pmulhw xmm7,[GOTOFF(eax,PW_F0402)] ; xmm7=(2*CrH * FIX(0.40200))
+ pmulhw xmm0,[GOTOFF(eax,PW_F0402)] ; xmm0=(2*CrL * FIX(0.40200))
+
+ paddw xmm6,[GOTOFF(eax,PW_ONE)]
+ paddw xmm4,[GOTOFF(eax,PW_ONE)]
+ psraw xmm6,1 ; xmm6=(CbH * -FIX(0.22800))
+ psraw xmm4,1 ; xmm4=(CbL * -FIX(0.22800))
+ paddw xmm7,[GOTOFF(eax,PW_ONE)]
+ paddw xmm0,[GOTOFF(eax,PW_ONE)]
+ psraw xmm7,1 ; xmm7=(CrH * FIX(0.40200))
+ psraw xmm0,1 ; xmm0=(CrL * FIX(0.40200))
+
+ paddw xmm6,xmm5
+ paddw xmm4,xmm2
+ paddw xmm6,xmm5 ; xmm6=(CbH * FIX(1.77200))=(B-Y)H
+ paddw xmm4,xmm2 ; xmm4=(CbL * FIX(1.77200))=(B-Y)L
+ paddw xmm7,xmm1 ; xmm7=(CrH * FIX(1.40200))=(R-Y)H
+ paddw xmm0,xmm3 ; xmm0=(CrL * FIX(1.40200))=(R-Y)L
+
+ movdqa XMMWORD [wk(0)], xmm6 ; wk(0)=(B-Y)H
+ movdqa XMMWORD [wk(1)], xmm7 ; wk(1)=(R-Y)H
+
+ movdqa xmm6,xmm5
+ movdqa xmm7,xmm2
+ punpcklwd xmm5,xmm1
+ punpckhwd xmm6,xmm1
+ pmaddwd xmm5,[GOTOFF(eax,PW_MF0344_F0285)]
+ pmaddwd xmm6,[GOTOFF(eax,PW_MF0344_F0285)]
+ punpcklwd xmm2,xmm3
+ punpckhwd xmm7,xmm3
+ pmaddwd xmm2,[GOTOFF(eax,PW_MF0344_F0285)]
+ pmaddwd xmm7,[GOTOFF(eax,PW_MF0344_F0285)]
+
+ paddd xmm5,[GOTOFF(eax,PD_ONEHALF)]
+ paddd xmm6,[GOTOFF(eax,PD_ONEHALF)]
+ psrad xmm5,SCALEBITS
+ psrad xmm6,SCALEBITS
+ paddd xmm2,[GOTOFF(eax,PD_ONEHALF)]
+ paddd xmm7,[GOTOFF(eax,PD_ONEHALF)]
+ psrad xmm2,SCALEBITS
+ psrad xmm7,SCALEBITS
+
+ packssdw xmm5,xmm6 ; xmm5=CbH*-FIX(0.344)+CrH*FIX(0.285)
+ packssdw xmm2,xmm7 ; xmm2=CbL*-FIX(0.344)+CrL*FIX(0.285)
+ psubw xmm5,xmm1 ; xmm5=CbH*-FIX(0.344)+CrH*-FIX(0.714)=(G-Y)H
+ psubw xmm2,xmm3 ; xmm2=CbL*-FIX(0.344)+CrL*-FIX(0.714)=(G-Y)L
+
+ movdqa XMMWORD [wk(2)], xmm5 ; wk(2)=(G-Y)H
+
+ mov al,2 ; Yctr
+ jmp short .Yloop_1st
+ alignx 16,7
+
+.Yloop_2nd:
+ movdqa xmm0, XMMWORD [wk(1)] ; xmm0=(R-Y)H
+ movdqa xmm2, XMMWORD [wk(2)] ; xmm2=(G-Y)H
+ movdqa xmm4, XMMWORD [wk(0)] ; xmm4=(B-Y)H
+ alignx 16,7
+
+.Yloop_1st:
+ movdqa xmm7, XMMWORD [esi] ; xmm7=Y(0123456789ABCDEF)
+
+ pcmpeqw xmm6,xmm6
+ psrlw xmm6,BYTE_BIT ; xmm6={0xFF 0x00 0xFF 0x00 ..}
+ pand xmm6,xmm7 ; xmm6=Y(02468ACE)=YE
+ psrlw xmm7,BYTE_BIT ; xmm7=Y(13579BDF)=YO
+
+ movdqa xmm1,xmm0 ; xmm1=xmm0=(R-Y)(L/H)
+ movdqa xmm3,xmm2 ; xmm3=xmm2=(G-Y)(L/H)
+ movdqa xmm5,xmm4 ; xmm5=xmm4=(B-Y)(L/H)
+
+ paddw xmm0,xmm6 ; xmm0=((R-Y)+YE)=RE=R(02468ACE)
+ paddw xmm1,xmm7 ; xmm1=((R-Y)+YO)=RO=R(13579BDF)
+ packuswb xmm0,xmm0 ; xmm0=R(02468ACE********)
+ packuswb xmm1,xmm1 ; xmm1=R(13579BDF********)
+
+ paddw xmm2,xmm6 ; xmm2=((G-Y)+YE)=GE=G(02468ACE)
+ paddw xmm3,xmm7 ; xmm3=((G-Y)+YO)=GO=G(13579BDF)
+ packuswb xmm2,xmm2 ; xmm2=G(02468ACE********)
+ packuswb xmm3,xmm3 ; xmm3=G(13579BDF********)
+
+ paddw xmm4,xmm6 ; xmm4=((B-Y)+YE)=BE=B(02468ACE)
+ paddw xmm5,xmm7 ; xmm5=((B-Y)+YO)=BO=B(13579BDF)
+ packuswb xmm4,xmm4 ; xmm4=B(02468ACE********)
+ packuswb xmm5,xmm5 ; xmm5=B(13579BDF********)
+
+%if RGB_PIXELSIZE == 3 ; ---------------
+
+ ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
+ ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
+ ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
+ ; xmmG=(** ** ** ** ** ** ** ** **), xmmH=(** ** ** ** ** ** ** ** **)
+
+ punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
+ punpcklbw xmmE,xmmB ; xmmE=(20 01 22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F)
+ punpcklbw xmmD,xmmF ; xmmD=(11 21 13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F)
+
+ movdqa xmmG,xmmA
+ movdqa xmmH,xmmA
+ punpcklwd xmmA,xmmE ; xmmA=(00 10 20 01 02 12 22 03 04 14 24 05 06 16 26 07)
+ punpckhwd xmmG,xmmE ; xmmG=(08 18 28 09 0A 1A 2A 0B 0C 1C 2C 0D 0E 1E 2E 0F)
+
+ psrldq xmmH,2 ; xmmH=(02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E -- --)
+ psrldq xmmE,2 ; xmmE=(22 03 24 05 26 07 28 09 2A 0B 2C 0D 2E 0F -- --)
+
+ movdqa xmmC,xmmD
+ movdqa xmmB,xmmD
+ punpcklwd xmmD,xmmH ; xmmD=(11 21 02 12 13 23 04 14 15 25 06 16 17 27 08 18)
+ punpckhwd xmmC,xmmH ; xmmC=(19 29 0A 1A 1B 2B 0C 1C 1D 2D 0E 1E 1F 2F -- --)
+
+ psrldq xmmB,2 ; xmmB=(13 23 15 25 17 27 19 29 1B 2B 1D 2D 1F 2F -- --)
+
+ movdqa xmmF,xmmE
+ punpcklwd xmmE,xmmB ; xmmE=(22 03 13 23 24 05 15 25 26 07 17 27 28 09 19 29)
+ punpckhwd xmmF,xmmB ; xmmF=(2A 0B 1B 2B 2C 0D 1D 2D 2E 0F 1F 2F -- -- -- --)
+
+ pshufd xmmH,xmmA,0x4E; xmmH=(04 14 24 05 06 16 26 07 00 10 20 01 02 12 22 03)
+ movdqa xmmB,xmmE
+ punpckldq xmmA,xmmD ; xmmA=(00 10 20 01 11 21 02 12 02 12 22 03 13 23 04 14)
+ punpckldq xmmE,xmmH ; xmmE=(22 03 13 23 04 14 24 05 24 05 15 25 06 16 26 07)
+ punpckhdq xmmD,xmmB ; xmmD=(15 25 06 16 26 07 17 27 17 27 08 18 28 09 19 29)
+
+ pshufd xmmH,xmmG,0x4E; xmmH=(0C 1C 2C 0D 0E 1E 2E 0F 08 18 28 09 0A 1A 2A 0B)
+ movdqa xmmB,xmmF
+ punpckldq xmmG,xmmC ; xmmG=(08 18 28 09 19 29 0A 1A 0A 1A 2A 0B 1B 2B 0C 1C)
+ punpckldq xmmF,xmmH ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 2C 0D 1D 2D 0E 1E 2E 0F)
+ punpckhdq xmmC,xmmB ; xmmC=(1D 2D 0E 1E 2E 0F 1F 2F 1F 2F -- -- -- -- -- --)
+
+ punpcklqdq xmmA,xmmE ; xmmA=(00 10 20 01 11 21 02 12 22 03 13 23 04 14 24 05)
+ punpcklqdq xmmD,xmmG ; xmmD=(15 25 06 16 26 07 17 27 08 18 28 09 19 29 0A 1A)
+ punpcklqdq xmmF,xmmC ; xmmF=(2A 0B 1B 2B 0C 1C 2C 0D 1D 2D 0E 1E 2E 0F 1F 2F)
+
+ cmp ecx, byte SIZEOF_XMMWORD
+ jb short .column_st32
+
+ test edi, SIZEOF_XMMWORD-1
+ jnz short .out1
+ ; --(aligned)-------------------
+ movntdq XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
+ movntdq XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
+ movntdq XMMWORD [edi+2*SIZEOF_XMMWORD], xmmF
+ add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
+ jmp short .out0
+.out1: ; --(unaligned)-----------------
+ pcmpeqb xmmH,xmmH ; xmmH=(all 1's)
+ maskmovdqu xmmA,xmmH ; movntdqu XMMWORD [edi], xmmA
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmD,xmmH ; movntdqu XMMWORD [edi], xmmD
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmF,xmmH ; movntdqu XMMWORD [edi], xmmF
+ add edi, byte SIZEOF_XMMWORD ; outptr
+.out0:
+ sub ecx, byte SIZEOF_XMMWORD
+ jz near .endcolumn
+
+ add esi, byte SIZEOF_XMMWORD ; inptr0
+ dec al ; Yctr
+ jnz near .Yloop_2nd
+
+ add ebx, byte SIZEOF_XMMWORD ; inptr1
+ add edx, byte SIZEOF_XMMWORD ; inptr2
+ jmp near .columnloop
+ alignx 16,7
+
+.column_st32:
+ pcmpeqb xmmH,xmmH ; xmmH=(all 1's)
+ lea ecx, [ecx+ecx*2] ; imul ecx, RGB_PIXELSIZE
+ cmp ecx, byte 2*SIZEOF_XMMWORD
+ jb short .column_st16
+ maskmovdqu xmmA,xmmH ; movntdqu XMMWORD [edi], xmmA
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmD,xmmH ; movntdqu XMMWORD [edi], xmmD
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ movdqa xmmA,xmmF
+ sub ecx, byte 2*SIZEOF_XMMWORD
+ jmp short .column_st15
+.column_st16:
+ cmp ecx, byte SIZEOF_XMMWORD
+ jb short .column_st15
+ maskmovdqu xmmA,xmmH ; movntdqu XMMWORD [edi], xmmA
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ movdqa xmmA,xmmD
+ sub ecx, byte SIZEOF_XMMWORD
+.column_st15:
+ mov eax,ecx
+ xor ecx, byte 0x0F
+ shl ecx, 2
+ movd xmmB,ecx
+ psrlq xmmH,4
+ pcmpeqb xmmE,xmmE
+ psrlq xmmH,xmmB
+ psrlq xmmE,xmmB
+ punpcklbw xmmE,xmmH
+ ; ----------------
+ mov ecx,edi
+ and ecx, byte SIZEOF_XMMWORD-1
+ jz short .adj0
+ add eax,ecx
+ cmp eax, byte SIZEOF_XMMWORD
+ ja short .adj0
+ and edi, byte (-SIZEOF_XMMWORD) ; align to 16-byte boundary
+ shl ecx, 3 ; pslldq xmmA,ecx & pslldq xmmE,ecx
+ movdqa xmmG,xmmA
+ movdqa xmmC,xmmE
+ pslldq xmmA, SIZEOF_XMMWORD/2
+ pslldq xmmE, SIZEOF_XMMWORD/2
+ movd xmmD,ecx
+ sub ecx, byte (SIZEOF_XMMWORD/2)*BYTE_BIT
+ jb short .adj1
+ movd xmmF,ecx
+ psllq xmmA,xmmF
+ psllq xmmE,xmmF
+ jmp short .adj0
+.adj1: neg ecx
+ movd xmmF,ecx
+ psrlq xmmA,xmmF
+ psrlq xmmE,xmmF
+ psllq xmmG,xmmD
+ psllq xmmC,xmmD
+ por xmmA,xmmG
+ por xmmE,xmmC
+.adj0: ; ----------------
+ maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
+
+%else ; RGB_PIXELSIZE == 4 ; -----------
+
+%ifdef RGBX_FILLER_0XFF
+ pcmpeqb xmm6,xmm6 ; xmm6=XE=X(02468ACE********)
+ pcmpeqb xmm7,xmm7 ; xmm7=XO=X(13579BDF********)
+%else
+ pxor xmm6,xmm6 ; xmm6=XE=X(02468ACE********)
+ pxor xmm7,xmm7 ; xmm7=XO=X(13579BDF********)
+%endif
+ ; xmmA=(00 02 04 06 08 0A 0C 0E **), xmmB=(01 03 05 07 09 0B 0D 0F **)
+ ; xmmC=(10 12 14 16 18 1A 1C 1E **), xmmD=(11 13 15 17 19 1B 1D 1F **)
+ ; xmmE=(20 22 24 26 28 2A 2C 2E **), xmmF=(21 23 25 27 29 2B 2D 2F **)
+ ; xmmG=(30 32 34 36 38 3A 3C 3E **), xmmH=(31 33 35 37 39 3B 3D 3F **)
+
+ punpcklbw xmmA,xmmC ; xmmA=(00 10 02 12 04 14 06 16 08 18 0A 1A 0C 1C 0E 1E)
+ punpcklbw xmmE,xmmG ; xmmE=(20 30 22 32 24 34 26 36 28 38 2A 3A 2C 3C 2E 3E)
+ punpcklbw xmmB,xmmD ; xmmB=(01 11 03 13 05 15 07 17 09 19 0B 1B 0D 1D 0F 1F)
+ punpcklbw xmmF,xmmH ; xmmF=(21 31 23 33 25 35 27 37 29 39 2B 3B 2D 3D 2F 3F)
+
+ movdqa xmmC,xmmA
+ punpcklwd xmmA,xmmE ; xmmA=(00 10 20 30 02 12 22 32 04 14 24 34 06 16 26 36)
+ punpckhwd xmmC,xmmE ; xmmC=(08 18 28 38 0A 1A 2A 3A 0C 1C 2C 3C 0E 1E 2E 3E)
+ movdqa xmmG,xmmB
+ punpcklwd xmmB,xmmF ; xmmB=(01 11 21 31 03 13 23 33 05 15 25 35 07 17 27 37)
+ punpckhwd xmmG,xmmF ; xmmG=(09 19 29 39 0B 1B 2B 3B 0D 1D 2D 3D 0F 1F 2F 3F)
+
+ movdqa xmmD,xmmA
+ punpckldq xmmA,xmmB ; xmmA=(00 10 20 30 01 11 21 31 02 12 22 32 03 13 23 33)
+ punpckhdq xmmD,xmmB ; xmmD=(04 14 24 34 05 15 25 35 06 16 26 36 07 17 27 37)
+ movdqa xmmH,xmmC
+ punpckldq xmmC,xmmG ; xmmC=(08 18 28 38 09 19 29 39 0A 1A 2A 3A 0B 1B 2B 3B)
+ punpckhdq xmmH,xmmG ; xmmH=(0C 1C 2C 3C 0D 1D 2D 3D 0E 1E 2E 3E 0F 1F 2F 3F)
+
+ cmp ecx, byte SIZEOF_XMMWORD
+ jb short .column_st32
+
+ test edi, SIZEOF_XMMWORD-1
+ jnz short .out1
+ ; --(aligned)-------------------
+ movntdq XMMWORD [edi+0*SIZEOF_XMMWORD], xmmA
+ movntdq XMMWORD [edi+1*SIZEOF_XMMWORD], xmmD
+ movntdq XMMWORD [edi+2*SIZEOF_XMMWORD], xmmC
+ movntdq XMMWORD [edi+3*SIZEOF_XMMWORD], xmmH
+ add edi, byte RGB_PIXELSIZE*SIZEOF_XMMWORD ; outptr
+ jmp short .out0
+.out1: ; --(unaligned)-----------------
+ pcmpeqb xmmE,xmmE ; xmmE=(all 1's)
+ maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmD,xmmE ; movntdqu XMMWORD [edi], xmmD
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmC,xmmE ; movntdqu XMMWORD [edi], xmmC
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmH,xmmE ; movntdqu XMMWORD [edi], xmmH
+ add edi, byte SIZEOF_XMMWORD ; outptr
+.out0:
+ sub ecx, byte SIZEOF_XMMWORD
+ jz near .endcolumn
+
+ add esi, byte SIZEOF_XMMWORD ; inptr0
+ dec al ; Yctr
+ jnz near .Yloop_2nd
+
+ add ebx, byte SIZEOF_XMMWORD ; inptr1
+ add edx, byte SIZEOF_XMMWORD ; inptr2
+ jmp near .columnloop
+ alignx 16,7
+
+.column_st32:
+ pcmpeqb xmmE,xmmE ; xmmE=(all 1's)
+ cmp ecx, byte SIZEOF_XMMWORD/2
+ jb short .column_st16
+ maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ maskmovdqu xmmD,xmmE ; movntdqu XMMWORD [edi], xmmD
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ movdqa xmmA,xmmC
+ movdqa xmmD,xmmH
+ sub ecx, byte SIZEOF_XMMWORD/2
+.column_st16:
+ cmp ecx, byte SIZEOF_XMMWORD/4
+ jb short .column_st15
+ maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
+ add edi, byte SIZEOF_XMMWORD ; outptr
+ movdqa xmmA,xmmD
+ sub ecx, byte SIZEOF_XMMWORD/4
+.column_st15:
+ cmp ecx, byte SIZEOF_XMMWORD/16
+ jb short .endcolumn
+ mov eax,ecx
+ xor ecx, byte 0x03
+ inc ecx
+ shl ecx, 4
+ movd xmmF,ecx
+ psrlq xmmE,xmmF
+ punpcklbw xmmE,xmmE
+ ; ----------------
+ mov ecx,edi
+ and ecx, byte SIZEOF_XMMWORD-1
+ jz short .adj0
+ lea eax, [ecx+eax*4] ; RGB_PIXELSIZE
+ cmp eax, byte SIZEOF_XMMWORD
+ ja short .adj0
+ and edi, byte (-SIZEOF_XMMWORD) ; align to 16-byte boundary
+ shl ecx, 3 ; pslldq xmmA,ecx & pslldq xmmE,ecx
+ movdqa xmmB,xmmA
+ movdqa xmmG,xmmE
+ pslldq xmmA, SIZEOF_XMMWORD/2
+ pslldq xmmE, SIZEOF_XMMWORD/2
+ movd xmmC,ecx
+ sub ecx, byte (SIZEOF_XMMWORD/2)*BYTE_BIT
+ jb short .adj1
+ movd xmmH,ecx
+ psllq xmmA,xmmH
+ psllq xmmE,xmmH
+ jmp short .adj0
+.adj1: neg ecx
+ movd xmmH,ecx
+ psrlq xmmA,xmmH
+ psrlq xmmE,xmmH
+ psllq xmmB,xmmC
+ psllq xmmG,xmmC
+ por xmmA,xmmB
+ por xmmE,xmmG
+.adj0: ; ----------------
+ maskmovdqu xmmA,xmmE ; movntdqu XMMWORD [edi], xmmA
+
+%endif ; RGB_PIXELSIZE ; ---------------
+
+.endcolumn:
+ sfence ; flush the write buffer
+
+.return:
+ 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
+
+; --------------------------------------------------------------------------
+;
+; Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical.
+;
+; GLOBAL(void)
+; jsimd_h2v2_merged_upsample_sse2 (JDIMENSION output_width,
+; JSAMPIMAGE input_buf,
+; JDIMENSION in_row_group_ctr,
+; JSAMPARRAY output_buf);
+;
+
+%define output_width(b) (b)+8 ; JDIMENSION output_width
+%define input_buf(b) (b)+12 ; JSAMPIMAGE input_buf
+%define in_row_group_ctr(b) (b)+16 ; JDIMENSION in_row_group_ctr
+%define output_buf(b) (b)+20 ; JSAMPARRAY output_buf
+
+ align 16
+ global EXTN(jsimd_h2v2_merged_upsample_sse2)
+
+EXTN(jsimd_h2v2_merged_upsample_sse2):
+ push ebp
+ mov ebp,esp
+ push ebx
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ mov eax, POINTER [output_width(ebp)]
+
+ mov edi, JSAMPIMAGE [input_buf(ebp)]
+ mov ecx, JDIMENSION [in_row_group_ctr(ebp)]
+ mov esi, JSAMPARRAY [edi+0*SIZEOF_JSAMPARRAY]
+ mov ebx, JSAMPARRAY [edi+1*SIZEOF_JSAMPARRAY]
+ mov edx, JSAMPARRAY [edi+2*SIZEOF_JSAMPARRAY]
+ mov edi, JSAMPARRAY [output_buf(ebp)]
+ lea esi, [esi+ecx*SIZEOF_JSAMPROW]
+
+ push edx ; inptr2
+ push ebx ; inptr1
+ push esi ; inptr00
+ mov ebx,esp
+
+ push edi ; output_buf (outptr0)
+ push ecx ; in_row_group_ctr
+ push ebx ; input_buf
+ push eax ; output_width
+
+ call near EXTN(jsimd_h2v1_merged_upsample_sse2)
+
+ add esi, byte SIZEOF_JSAMPROW ; inptr01
+ add edi, byte SIZEOF_JSAMPROW ; outptr1
+ mov POINTER [ebx+0*SIZEOF_POINTER], esi
+ mov POINTER [ebx-1*SIZEOF_POINTER], edi
+
+ call near EXTN(jsimd_h2v1_merged_upsample_sse2)
+
+ add esp, byte 7*SIZEOF_DWORD
+
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; need not be preserved
+ pop ebx
+ pop ebp
+ ret
+
--- /dev/null
+;
+; jdsamss2.asm - upsampling (SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; Based on
+; 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
+;
+; [TAB8]
+
+%include "simd/jsimdext.inc"
+
+; --------------------------------------------------------------------------
+ SECTION SEG_CONST
+
+ alignz 16
+ global EXTN(jconst_fancy_upsample_sse2)
+
+EXTN(jconst_fancy_upsample_sse2):
+
+PW_ONE times 8 dw 1
+PW_TWO times 8 dw 2
+PW_THREE times 8 dw 3
+PW_SEVEN times 8 dw 7
+PW_EIGHT times 8 dw 8
+
+ alignz 16
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Fancy processing for the common case of 2:1 horizontal and 1:1 vertical.
+;
+; The upsampling algorithm is linear interpolation between pixel centers,
+; also known as a "triangle filter". This is a good compromise between
+; speed and visual quality. The centers of the output pixels are 1/4 and 3/4
+; of the way between input pixel centers.
+;
+; GLOBAL(void)
+; jsimd_h2v1_fancy_upsample_sse2 (int max_v_samp_factor,
+; JDIMENSION downsampled_width,
+; JSAMPARRAY input_data,
+; JSAMPARRAY * output_data_ptr);
+;
+
+%define max_v_samp(b) (b)+8 ; int max_v_samp_factor
+%define downsamp_width(b) (b)+12 ; JDIMENSION downsampled_width
+%define input_data(b) (b)+16 ; JSAMPARRAY input_data
+%define output_data_ptr(b) (b)+20 ; JSAMPARRAY * output_data_ptr
+
+ align 16
+ global EXTN(jsimd_h2v1_fancy_upsample_sse2)
+
+EXTN(jsimd_h2v1_fancy_upsample_sse2):
+ push ebp
+ mov ebp,esp
+ pushpic ebx
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ get_GOT ebx ; get GOT address
+
+ mov eax, JDIMENSION [downsamp_width(ebp)] ; colctr
+ test eax,eax
+ jz near .return
+
+ mov ecx, INT [max_v_samp(ebp)] ; rowctr
+ test ecx,ecx
+ jz near .return
+
+ mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
+ mov edi, POINTER [output_data_ptr(ebp)]
+ mov edi, JSAMPARRAY [edi] ; output_data
+ alignx 16,7
+.rowloop:
+ push eax ; colctr
+ push edi
+ push esi
+
+ mov esi, JSAMPROW [esi] ; inptr
+ mov edi, JSAMPROW [edi] ; outptr
+
+ test eax, SIZEOF_XMMWORD-1
+ jz short .skip
+ mov dl, JSAMPLE [esi+(eax-1)*SIZEOF_JSAMPLE]
+ mov JSAMPLE [esi+eax*SIZEOF_JSAMPLE], dl ; insert a dummy sample
+.skip:
+ pxor xmm0,xmm0 ; xmm0=(all 0's)
+ pcmpeqb xmm7,xmm7
+ psrldq xmm7,(SIZEOF_XMMWORD-1)
+ pand xmm7, XMMWORD [esi+0*SIZEOF_XMMWORD]
+
+ add eax, byte SIZEOF_XMMWORD-1
+ and eax, byte -SIZEOF_XMMWORD
+ cmp eax, byte SIZEOF_XMMWORD
+ ja short .columnloop
+ alignx 16,7
+
+.columnloop_last:
+ pcmpeqb xmm6,xmm6
+ pslldq xmm6,(SIZEOF_XMMWORD-1)
+ pand xmm6, XMMWORD [esi+0*SIZEOF_XMMWORD]
+ jmp short .upsample
+ alignx 16,7
+
+.columnloop:
+ movdqa xmm6, XMMWORD [esi+1*SIZEOF_XMMWORD]
+ pslldq xmm6,(SIZEOF_XMMWORD-1)
+
+.upsample:
+ movdqa xmm1, XMMWORD [esi+0*SIZEOF_XMMWORD]
+ movdqa xmm2,xmm1
+ movdqa xmm3,xmm1 ; xmm1=( 0 1 2 ... 13 14 15)
+ pslldq xmm2,1 ; xmm2=(-- 0 1 ... 12 13 14)
+ psrldq xmm3,1 ; xmm3=( 1 2 3 ... 14 15 --)
+
+ por xmm2,xmm7 ; xmm2=(-1 0 1 ... 12 13 14)
+ por xmm3,xmm6 ; xmm3=( 1 2 3 ... 14 15 16)
+
+ movdqa xmm7,xmm1
+ psrldq xmm7,(SIZEOF_XMMWORD-1) ; xmm7=(15 -- -- ... -- -- --)
+
+ movdqa xmm4,xmm1
+ punpcklbw xmm1,xmm0 ; xmm1=( 0 1 2 3 4 5 6 7)
+ punpckhbw xmm4,xmm0 ; xmm4=( 8 9 10 11 12 13 14 15)
+ movdqa xmm5,xmm2
+ punpcklbw xmm2,xmm0 ; xmm2=(-1 0 1 2 3 4 5 6)
+ punpckhbw xmm5,xmm0 ; xmm5=( 7 8 9 10 11 12 13 14)
+ movdqa xmm6,xmm3
+ punpcklbw xmm3,xmm0 ; xmm3=( 1 2 3 4 5 6 7 8)
+ punpckhbw xmm6,xmm0 ; xmm6=( 9 10 11 12 13 14 15 16)
+
+ pmullw xmm1,[GOTOFF(ebx,PW_THREE)]
+ pmullw xmm4,[GOTOFF(ebx,PW_THREE)]
+ paddw xmm2,[GOTOFF(ebx,PW_ONE)]
+ paddw xmm5,[GOTOFF(ebx,PW_ONE)]
+ paddw xmm3,[GOTOFF(ebx,PW_TWO)]
+ paddw xmm6,[GOTOFF(ebx,PW_TWO)]
+
+ paddw xmm2,xmm1
+ paddw xmm5,xmm4
+ psrlw xmm2,2 ; xmm2=OutLE=( 0 2 4 6 8 10 12 14)
+ psrlw xmm5,2 ; xmm5=OutHE=(16 18 20 22 24 26 28 30)
+ paddw xmm3,xmm1
+ paddw xmm6,xmm4
+ psrlw xmm3,2 ; xmm3=OutLO=( 1 3 5 7 9 11 13 15)
+ psrlw xmm6,2 ; xmm6=OutHO=(17 19 21 23 25 27 29 31)
+
+ psllw xmm3,BYTE_BIT
+ psllw xmm6,BYTE_BIT
+ por xmm2,xmm3 ; xmm2=OutL=( 0 1 2 ... 13 14 15)
+ por xmm5,xmm6 ; xmm5=OutH=(16 17 18 ... 29 30 31)
+
+ movdqa XMMWORD [edi+0*SIZEOF_XMMWORD], xmm2
+ movdqa XMMWORD [edi+1*SIZEOF_XMMWORD], xmm5
+
+ sub eax, byte SIZEOF_XMMWORD
+ add esi, byte 1*SIZEOF_XMMWORD ; inptr
+ add edi, byte 2*SIZEOF_XMMWORD ; outptr
+ cmp eax, byte SIZEOF_XMMWORD
+ ja near .columnloop
+ test eax,eax
+ jnz near .columnloop_last
+
+ pop esi
+ pop edi
+ pop eax
+
+ add esi, byte SIZEOF_JSAMPROW ; input_data
+ add edi, byte SIZEOF_JSAMPROW ; output_data
+ dec ecx ; rowctr
+ jg near .rowloop
+
+.return:
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; need not be preserved
+ poppic ebx
+ pop ebp
+ ret
+
+; --------------------------------------------------------------------------
+;
+; Fancy processing for the common case of 2:1 horizontal and 2:1 vertical.
+; Again a triangle filter; see comments for h2v1 case, above.
+;
+; GLOBAL(void)
+; jsimd_h2v2_fancy_upsample_sse2 (int max_v_samp_factor,
+; JDIMENSION downsampled_width,
+; JSAMPARRAY input_data,
+; JSAMPARRAY * output_data_ptr);
+;
+
+%define max_v_samp(b) (b)+8 ; int max_v_samp_factor
+%define downsamp_width(b) (b)+12 ; JDIMENSION downsampled_width
+%define input_data(b) (b)+16 ; JSAMPARRAY input_data
+%define output_data_ptr(b) (b)+20 ; JSAMPARRAY * output_data_ptr
+
+%define original_ebp ebp+0
+%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
+%define WK_NUM 4
+%define gotptr wk(0)-SIZEOF_POINTER ; void * gotptr
+
+ align 16
+ global EXTN(jsimd_h2v2_fancy_upsample_sse2)
+
+EXTN(jsimd_h2v2_fancy_upsample_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, [wk(0)]
+ pushpic eax ; make a room for GOT address
+ push ebx
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ get_GOT ebx ; get GOT address
+ movpic POINTER [gotptr], ebx ; save GOT address
+
+ mov edx,eax ; edx = original ebp
+ mov eax, JDIMENSION [downsamp_width(edx)] ; colctr
+ test eax,eax
+ jz near .return
+
+ mov ecx, INT [max_v_samp(edx)] ; rowctr
+ test ecx,ecx
+ jz near .return
+
+ mov esi, JSAMPARRAY [input_data(edx)] ; input_data
+ mov edi, POINTER [output_data_ptr(edx)]
+ mov edi, JSAMPARRAY [edi] ; output_data
+ alignx 16,7
+.rowloop:
+ push eax ; colctr
+ push ecx
+ push edi
+ push esi
+
+ mov ecx, JSAMPROW [esi-1*SIZEOF_JSAMPROW] ; inptr1(above)
+ mov ebx, JSAMPROW [esi+0*SIZEOF_JSAMPROW] ; inptr0
+ mov esi, JSAMPROW [esi+1*SIZEOF_JSAMPROW] ; inptr1(below)
+ mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] ; outptr0
+ mov edi, JSAMPROW [edi+1*SIZEOF_JSAMPROW] ; outptr1
+
+ test eax, SIZEOF_XMMWORD-1
+ jz short .skip
+ push edx
+ mov dl, JSAMPLE [ecx+(eax-1)*SIZEOF_JSAMPLE]
+ mov JSAMPLE [ecx+eax*SIZEOF_JSAMPLE], dl
+ mov dl, JSAMPLE [ebx+(eax-1)*SIZEOF_JSAMPLE]
+ mov JSAMPLE [ebx+eax*SIZEOF_JSAMPLE], dl
+ mov dl, JSAMPLE [esi+(eax-1)*SIZEOF_JSAMPLE]
+ mov JSAMPLE [esi+eax*SIZEOF_JSAMPLE], dl ; insert a dummy sample
+ pop edx
+.skip:
+ ; -- process the first column block
+
+ movdqa xmm0, XMMWORD [ebx+0*SIZEOF_XMMWORD] ; xmm0=row[ 0][0]
+ movdqa xmm1, XMMWORD [ecx+0*SIZEOF_XMMWORD] ; xmm1=row[-1][0]
+ movdqa xmm2, XMMWORD [esi+0*SIZEOF_XMMWORD] ; xmm2=row[+1][0]
+
+ pushpic ebx
+ movpic ebx, POINTER [gotptr] ; load GOT address
+
+ pxor xmm3,xmm3 ; xmm3=(all 0's)
+ movdqa xmm4,xmm0
+ punpcklbw xmm0,xmm3 ; xmm0=row[ 0]( 0 1 2 3 4 5 6 7)
+ punpckhbw xmm4,xmm3 ; xmm4=row[ 0]( 8 9 10 11 12 13 14 15)
+ movdqa xmm5,xmm1
+ punpcklbw xmm1,xmm3 ; xmm1=row[-1]( 0 1 2 3 4 5 6 7)
+ punpckhbw xmm5,xmm3 ; xmm5=row[-1]( 8 9 10 11 12 13 14 15)
+ movdqa xmm6,xmm2
+ punpcklbw xmm2,xmm3 ; xmm2=row[+1]( 0 1 2 3 4 5 6 7)
+ punpckhbw xmm6,xmm3 ; xmm6=row[+1]( 8 9 10 11 12 13 14 15)
+
+ pmullw xmm0,[GOTOFF(ebx,PW_THREE)]
+ pmullw xmm4,[GOTOFF(ebx,PW_THREE)]
+
+ pcmpeqb xmm7,xmm7
+ psrldq xmm7,(SIZEOF_XMMWORD-2)
+
+ paddw xmm1,xmm0 ; xmm1=Int0L=( 0 1 2 3 4 5 6 7)
+ paddw xmm5,xmm4 ; xmm5=Int0H=( 8 9 10 11 12 13 14 15)
+ paddw xmm2,xmm0 ; xmm2=Int1L=( 0 1 2 3 4 5 6 7)
+ paddw xmm6,xmm4 ; xmm6=Int1H=( 8 9 10 11 12 13 14 15)
+
+ movdqa XMMWORD [edx+0*SIZEOF_XMMWORD], xmm1 ; temporarily save
+ movdqa XMMWORD [edx+1*SIZEOF_XMMWORD], xmm5 ; the intermediate data
+ movdqa XMMWORD [edi+0*SIZEOF_XMMWORD], xmm2
+ movdqa XMMWORD [edi+1*SIZEOF_XMMWORD], xmm6
+
+ pand xmm1,xmm7 ; xmm1=( 0 -- -- -- -- -- -- --)
+ pand xmm2,xmm7 ; xmm2=( 0 -- -- -- -- -- -- --)
+
+ movdqa XMMWORD [wk(0)], xmm1
+ movdqa XMMWORD [wk(1)], xmm2
+
+ poppic ebx
+
+ add eax, byte SIZEOF_XMMWORD-1
+ and eax, byte -SIZEOF_XMMWORD
+ cmp eax, byte SIZEOF_XMMWORD
+ ja short .columnloop
+ alignx 16,7
+
+.columnloop_last:
+ ; -- process the last column block
+
+ pushpic ebx
+ movpic ebx, POINTER [gotptr] ; load GOT address
+
+ pcmpeqb xmm1,xmm1
+ pslldq xmm1,(SIZEOF_XMMWORD-2)
+ movdqa xmm2,xmm1
+
+ pand xmm1, XMMWORD [edx+1*SIZEOF_XMMWORD]
+ pand xmm2, XMMWORD [edi+1*SIZEOF_XMMWORD]
+
+ movdqa XMMWORD [wk(2)], xmm1 ; xmm1=(-- -- -- -- -- -- -- 15)
+ movdqa XMMWORD [wk(3)], xmm2 ; xmm2=(-- -- -- -- -- -- -- 15)
+
+ jmp near .upsample
+ alignx 16,7
+
+.columnloop:
+ ; -- process the next column block
+
+ movdqa xmm0, XMMWORD [ebx+1*SIZEOF_XMMWORD] ; xmm0=row[ 0][1]
+ movdqa xmm1, XMMWORD [ecx+1*SIZEOF_XMMWORD] ; xmm1=row[-1][1]
+ movdqa xmm2, XMMWORD [esi+1*SIZEOF_XMMWORD] ; xmm2=row[+1][1]
+
+ pushpic ebx
+ movpic ebx, POINTER [gotptr] ; load GOT address
+
+ pxor xmm3,xmm3 ; xmm3=(all 0's)
+ movdqa xmm4,xmm0
+ punpcklbw xmm0,xmm3 ; xmm0=row[ 0]( 0 1 2 3 4 5 6 7)
+ punpckhbw xmm4,xmm3 ; xmm4=row[ 0]( 8 9 10 11 12 13 14 15)
+ movdqa xmm5,xmm1
+ punpcklbw xmm1,xmm3 ; xmm1=row[-1]( 0 1 2 3 4 5 6 7)
+ punpckhbw xmm5,xmm3 ; xmm5=row[-1]( 8 9 10 11 12 13 14 15)
+ movdqa xmm6,xmm2
+ punpcklbw xmm2,xmm3 ; xmm2=row[+1]( 0 1 2 3 4 5 6 7)
+ punpckhbw xmm6,xmm3 ; xmm6=row[+1]( 8 9 10 11 12 13 14 15)
+
+ pmullw xmm0,[GOTOFF(ebx,PW_THREE)]
+ pmullw xmm4,[GOTOFF(ebx,PW_THREE)]
+
+ paddw xmm1,xmm0 ; xmm1=Int0L=( 0 1 2 3 4 5 6 7)
+ paddw xmm5,xmm4 ; xmm5=Int0H=( 8 9 10 11 12 13 14 15)
+ paddw xmm2,xmm0 ; xmm2=Int1L=( 0 1 2 3 4 5 6 7)
+ paddw xmm6,xmm4 ; xmm6=Int1H=( 8 9 10 11 12 13 14 15)
+
+ movdqa XMMWORD [edx+2*SIZEOF_XMMWORD], xmm1 ; temporarily save
+ movdqa XMMWORD [edx+3*SIZEOF_XMMWORD], xmm5 ; the intermediate data
+ movdqa XMMWORD [edi+2*SIZEOF_XMMWORD], xmm2
+ movdqa XMMWORD [edi+3*SIZEOF_XMMWORD], xmm6
+
+ pslldq xmm1,(SIZEOF_XMMWORD-2) ; xmm1=(-- -- -- -- -- -- -- 0)
+ pslldq xmm2,(SIZEOF_XMMWORD-2) ; xmm2=(-- -- -- -- -- -- -- 0)
+
+ movdqa XMMWORD [wk(2)], xmm1
+ movdqa XMMWORD [wk(3)], xmm2
+
+.upsample:
+ ; -- process the upper row
+
+ movdqa xmm7, XMMWORD [edx+0*SIZEOF_XMMWORD]
+ movdqa xmm3, XMMWORD [edx+1*SIZEOF_XMMWORD]
+
+ movdqa xmm0,xmm7 ; xmm7=Int0L=( 0 1 2 3 4 5 6 7)
+ movdqa xmm4,xmm3 ; xmm3=Int0H=( 8 9 10 11 12 13 14 15)
+ psrldq xmm0,2 ; xmm0=( 1 2 3 4 5 6 7 --)
+ pslldq xmm4,(SIZEOF_XMMWORD-2) ; xmm4=(-- -- -- -- -- -- -- 8)
+ movdqa xmm5,xmm7
+ movdqa xmm6,xmm3
+ psrldq xmm5,(SIZEOF_XMMWORD-2) ; xmm5=( 7 -- -- -- -- -- -- --)
+ pslldq xmm6,2 ; xmm6=(-- 8 9 10 11 12 13 14)
+
+ por xmm0,xmm4 ; xmm0=( 1 2 3 4 5 6 7 8)
+ por xmm5,xmm6 ; xmm5=( 7 8 9 10 11 12 13 14)
+
+ movdqa xmm1,xmm7
+ movdqa xmm2,xmm3
+ pslldq xmm1,2 ; xmm1=(-- 0 1 2 3 4 5 6)
+ psrldq xmm2,2 ; xmm2=( 9 10 11 12 13 14 15 --)
+ movdqa xmm4,xmm3
+ psrldq xmm4,(SIZEOF_XMMWORD-2) ; xmm4=(15 -- -- -- -- -- -- --)
+
+ por xmm1, XMMWORD [wk(0)] ; xmm1=(-1 0 1 2 3 4 5 6)
+ por xmm2, XMMWORD [wk(2)] ; xmm2=( 9 10 11 12 13 14 15 16)
+
+ movdqa XMMWORD [wk(0)], xmm4
+
+ pmullw xmm7,[GOTOFF(ebx,PW_THREE)]
+ pmullw xmm3,[GOTOFF(ebx,PW_THREE)]
+ paddw xmm1,[GOTOFF(ebx,PW_EIGHT)]
+ paddw xmm5,[GOTOFF(ebx,PW_EIGHT)]
+ paddw xmm0,[GOTOFF(ebx,PW_SEVEN)]
+ paddw xmm2,[GOTOFF(ebx,PW_SEVEN)]
+
+ paddw xmm1,xmm7
+ paddw xmm5,xmm3
+ psrlw xmm1,4 ; xmm1=Out0LE=( 0 2 4 6 8 10 12 14)
+ psrlw xmm5,4 ; xmm5=Out0HE=(16 18 20 22 24 26 28 30)
+ paddw xmm0,xmm7
+ paddw xmm2,xmm3
+ psrlw xmm0,4 ; xmm0=Out0LO=( 1 3 5 7 9 11 13 15)
+ psrlw xmm2,4 ; xmm2=Out0HO=(17 19 21 23 25 27 29 31)
+
+ psllw xmm0,BYTE_BIT
+ psllw xmm2,BYTE_BIT
+ por xmm1,xmm0 ; xmm1=Out0L=( 0 1 2 ... 13 14 15)
+ por xmm5,xmm2 ; xmm5=Out0H=(16 17 18 ... 29 30 31)
+
+ movdqa XMMWORD [edx+0*SIZEOF_XMMWORD], xmm1
+ movdqa XMMWORD [edx+1*SIZEOF_XMMWORD], xmm5
+
+ ; -- process the lower row
+
+ movdqa xmm6, XMMWORD [edi+0*SIZEOF_XMMWORD]
+ movdqa xmm4, XMMWORD [edi+1*SIZEOF_XMMWORD]
+
+ movdqa xmm7,xmm6 ; xmm6=Int1L=( 0 1 2 3 4 5 6 7)
+ movdqa xmm3,xmm4 ; xmm4=Int1H=( 8 9 10 11 12 13 14 15)
+ psrldq xmm7,2 ; xmm7=( 1 2 3 4 5 6 7 --)
+ pslldq xmm3,(SIZEOF_XMMWORD-2) ; xmm3=(-- -- -- -- -- -- -- 8)
+ movdqa xmm0,xmm6
+ movdqa xmm2,xmm4
+ psrldq xmm0,(SIZEOF_XMMWORD-2) ; xmm0=( 7 -- -- -- -- -- -- --)
+ pslldq xmm2,2 ; xmm2=(-- 8 9 10 11 12 13 14)
+
+ por xmm7,xmm3 ; xmm7=( 1 2 3 4 5 6 7 8)
+ por xmm0,xmm2 ; xmm0=( 7 8 9 10 11 12 13 14)
+
+ movdqa xmm1,xmm6
+ movdqa xmm5,xmm4
+ pslldq xmm1,2 ; xmm1=(-- 0 1 2 3 4 5 6)
+ psrldq xmm5,2 ; xmm5=( 9 10 11 12 13 14 15 --)
+ movdqa xmm3,xmm4
+ psrldq xmm3,(SIZEOF_XMMWORD-2) ; xmm3=(15 -- -- -- -- -- -- --)
+
+ por xmm1, XMMWORD [wk(1)] ; xmm1=(-1 0 1 2 3 4 5 6)
+ por xmm5, XMMWORD [wk(3)] ; xmm5=( 9 10 11 12 13 14 15 16)
+
+ movdqa XMMWORD [wk(1)], xmm3
+
+ pmullw xmm6,[GOTOFF(ebx,PW_THREE)]
+ pmullw xmm4,[GOTOFF(ebx,PW_THREE)]
+ paddw xmm1,[GOTOFF(ebx,PW_EIGHT)]
+ paddw xmm0,[GOTOFF(ebx,PW_EIGHT)]
+ paddw xmm7,[GOTOFF(ebx,PW_SEVEN)]
+ paddw xmm5,[GOTOFF(ebx,PW_SEVEN)]
+
+ paddw xmm1,xmm6
+ paddw xmm0,xmm4
+ psrlw xmm1,4 ; xmm1=Out1LE=( 0 2 4 6 8 10 12 14)
+ psrlw xmm0,4 ; xmm0=Out1HE=(16 18 20 22 24 26 28 30)
+ paddw xmm7,xmm6
+ paddw xmm5,xmm4
+ psrlw xmm7,4 ; xmm7=Out1LO=( 1 3 5 7 9 11 13 15)
+ psrlw xmm5,4 ; xmm5=Out1HO=(17 19 21 23 25 27 29 31)
+
+ psllw xmm7,BYTE_BIT
+ psllw xmm5,BYTE_BIT
+ por xmm1,xmm7 ; xmm1=Out1L=( 0 1 2 ... 13 14 15)
+ por xmm0,xmm5 ; xmm0=Out1H=(16 17 18 ... 29 30 31)
+
+ movdqa XMMWORD [edi+0*SIZEOF_XMMWORD], xmm1
+ movdqa XMMWORD [edi+1*SIZEOF_XMMWORD], xmm0
+
+ poppic ebx
+
+ sub eax, byte SIZEOF_XMMWORD
+ add ecx, byte 1*SIZEOF_XMMWORD ; inptr1(above)
+ add ebx, byte 1*SIZEOF_XMMWORD ; inptr0
+ add esi, byte 1*SIZEOF_XMMWORD ; inptr1(below)
+ add edx, byte 2*SIZEOF_XMMWORD ; outptr0
+ add edi, byte 2*SIZEOF_XMMWORD ; outptr1
+ cmp eax, byte SIZEOF_XMMWORD
+ ja near .columnloop
+ test eax,eax
+ jnz near .columnloop_last
+
+ pop esi
+ pop edi
+ pop ecx
+ pop eax
+
+ add esi, byte 1*SIZEOF_JSAMPROW ; input_data
+ add edi, byte 2*SIZEOF_JSAMPROW ; output_data
+ sub ecx, byte 2 ; rowctr
+ jg near .rowloop
+
+.return:
+ 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
+
+; --------------------------------------------------------------------------
+;
+; Fast processing for the common case of 2:1 horizontal and 1:1 vertical.
+; It's still a box filter.
+;
+; GLOBAL(void)
+; jsimd_h2v1_upsample_sse2 (int max_v_samp_factor,
+; JDIMENSION output_width,
+; JSAMPARRAY input_data,
+; JSAMPARRAY * output_data_ptr);
+;
+
+%define max_v_samp(b) (b)+8 ; int max_v_samp_factor
+%define output_width(b) (b)+12 ; JDIMENSION output_width
+%define input_data(b) (b)+16 ; JSAMPARRAY input_data
+%define output_data_ptr(b) (b)+20 ; JSAMPARRAY * output_data_ptr
+
+ align 16
+ global EXTN(jsimd_h2v1_upsample_sse2)
+
+EXTN(jsimd_h2v1_upsample_sse2):
+ push ebp
+ mov ebp,esp
+; push ebx ; unused
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ mov edx, JDIMENSION [output_width(ebp)]
+ add edx, byte (2*SIZEOF_XMMWORD)-1
+ and edx, byte -(2*SIZEOF_XMMWORD)
+ jz short .return
+
+ mov ecx, INT [max_v_samp(ebp)] ; rowctr
+ test ecx,ecx
+ jz short .return
+
+ mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
+ mov edi, POINTER [output_data_ptr(ebp)]
+ mov edi, JSAMPARRAY [edi] ; output_data
+ alignx 16,7
+.rowloop:
+ push edi
+ push esi
+
+ mov esi, JSAMPROW [esi] ; inptr
+ mov edi, JSAMPROW [edi] ; outptr
+ mov eax,edx ; colctr
+ alignx 16,7
+.columnloop:
+
+ movdqa xmm0, XMMWORD [esi+0*SIZEOF_XMMWORD]
+
+ movdqa xmm1,xmm0
+ punpcklbw xmm0,xmm0
+ punpckhbw xmm1,xmm1
+
+ movdqa XMMWORD [edi+0*SIZEOF_XMMWORD], xmm0
+ movdqa XMMWORD [edi+1*SIZEOF_XMMWORD], xmm1
+
+ sub eax, byte 2*SIZEOF_XMMWORD
+ jz short .nextrow
+
+ movdqa xmm2, XMMWORD [esi+1*SIZEOF_XMMWORD]
+
+ movdqa xmm3,xmm2
+ punpcklbw xmm2,xmm2
+ punpckhbw xmm3,xmm3
+
+ movdqa XMMWORD [edi+2*SIZEOF_XMMWORD], xmm2
+ movdqa XMMWORD [edi+3*SIZEOF_XMMWORD], xmm3
+
+ sub eax, byte 2*SIZEOF_XMMWORD
+ jz short .nextrow
+
+ add esi, byte 2*SIZEOF_XMMWORD ; inptr
+ add edi, byte 4*SIZEOF_XMMWORD ; outptr
+ jmp short .columnloop
+ alignx 16,7
+
+.nextrow:
+ pop esi
+ pop edi
+
+ add esi, byte SIZEOF_JSAMPROW ; input_data
+ add edi, byte SIZEOF_JSAMPROW ; output_data
+ dec ecx ; rowctr
+ jg short .rowloop
+
+.return:
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; need not be preserved
+; pop ebx ; unused
+ pop ebp
+ ret
+
+; --------------------------------------------------------------------------
+;
+; Fast processing for the common case of 2:1 horizontal and 2:1 vertical.
+; It's still a box filter.
+;
+; GLOBAL(void)
+; jsimd_h2v2_upsample_sse2 (nt max_v_samp_factor,
+; JDIMENSION output_width,
+; JSAMPARRAY input_data,
+; JSAMPARRAY * output_data_ptr);
+;
+
+%define max_v_samp(b) (b)+8 ; int max_v_samp_factor
+%define output_width(b) (b)+12 ; JDIMENSION output_width
+%define input_data(b) (b)+16 ; JSAMPARRAY input_data
+%define output_data_ptr(b) (b)+20 ; JSAMPARRAY * output_data_ptr
+
+ align 16
+ global EXTN(jsimd_h2v2_upsample_sse2)
+
+EXTN(jsimd_h2v2_upsample_sse2):
+ push ebp
+ mov ebp,esp
+ push ebx
+; push ecx ; need not be preserved
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ mov edx, JDIMENSION [output_width(ebp)]
+ add edx, byte (2*SIZEOF_XMMWORD)-1
+ and edx, byte -(2*SIZEOF_XMMWORD)
+ jz near .return
+
+ mov ecx, INT [max_v_samp(ebp)] ; rowctr
+ test ecx,ecx
+ jz near .return
+
+ mov esi, JSAMPARRAY [input_data(ebp)] ; input_data
+ mov edi, POINTER [output_data_ptr(ebp)]
+ mov edi, JSAMPARRAY [edi] ; output_data
+ alignx 16,7
+.rowloop:
+ push edi
+ push esi
+
+ mov esi, JSAMPROW [esi] ; inptr
+ mov ebx, JSAMPROW [edi+0*SIZEOF_JSAMPROW] ; outptr0
+ mov edi, JSAMPROW [edi+1*SIZEOF_JSAMPROW] ; outptr1
+ mov eax,edx ; colctr
+ alignx 16,7
+.columnloop:
+
+ movdqa xmm0, XMMWORD [esi+0*SIZEOF_XMMWORD]
+
+ movdqa xmm1,xmm0
+ punpcklbw xmm0,xmm0
+ punpckhbw xmm1,xmm1
+
+ movdqa XMMWORD [ebx+0*SIZEOF_XMMWORD], xmm0
+ movdqa XMMWORD [ebx+1*SIZEOF_XMMWORD], xmm1
+ movdqa XMMWORD [edi+0*SIZEOF_XMMWORD], xmm0
+ movdqa XMMWORD [edi+1*SIZEOF_XMMWORD], xmm1
+
+ sub eax, byte 2*SIZEOF_XMMWORD
+ jz short .nextrow
+
+ movdqa xmm2, XMMWORD [esi+1*SIZEOF_XMMWORD]
+
+ movdqa xmm3,xmm2
+ punpcklbw xmm2,xmm2
+ punpckhbw xmm3,xmm3
+
+ movdqa XMMWORD [ebx+2*SIZEOF_XMMWORD], xmm2
+ movdqa XMMWORD [ebx+3*SIZEOF_XMMWORD], xmm3
+ movdqa XMMWORD [edi+2*SIZEOF_XMMWORD], xmm2
+ movdqa XMMWORD [edi+3*SIZEOF_XMMWORD], xmm3
+
+ sub eax, byte 2*SIZEOF_XMMWORD
+ jz short .nextrow
+
+ add esi, byte 2*SIZEOF_XMMWORD ; inptr
+ add ebx, byte 4*SIZEOF_XMMWORD ; outptr0
+ add edi, byte 4*SIZEOF_XMMWORD ; outptr1
+ jmp short .columnloop
+ alignx 16,7
+
+.nextrow:
+ pop esi
+ pop edi
+
+ add esi, byte 1*SIZEOF_JSAMPROW ; input_data
+ add edi, byte 2*SIZEOF_JSAMPROW ; output_data
+ sub ecx, byte 2 ; rowctr
+ jg short .rowloop
+
+.return:
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; need not be preserved
+ pop ebx
+ pop ebp
+ ret
+
--- /dev/null
+;
+; jfss2fst.asm - fast integer FDCT (SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; Based on
+; 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 fast, not so accurate integer implementation of
+; the forward DCT (Discrete Cosine Transform). The following code is
+; based directly on the IJG's original jfdctfst.c; see the jfdctfst.c
+; for more details.
+;
+; [TAB8]
+
+%include "simd/jsimdext.inc"
+%include "simd/jdct.inc"
+
+; --------------------------------------------------------------------------
+
+%define CONST_BITS 8 ; 14 is also OK.
+
+%if CONST_BITS == 8
+F_0_382 equ 98 ; FIX(0.382683433)
+F_0_541 equ 139 ; FIX(0.541196100)
+F_0_707 equ 181 ; FIX(0.707106781)
+F_1_306 equ 334 ; FIX(1.306562965)
+%else
+; NASM cannot do compile-time arithmetic on floating-point constants.
+%define DESCALE(x,n) (((x)+(1<<((n)-1)))>>(n))
+F_0_382 equ DESCALE( 410903207,30-CONST_BITS) ; FIX(0.382683433)
+F_0_541 equ DESCALE( 581104887,30-CONST_BITS) ; FIX(0.541196100)
+F_0_707 equ DESCALE( 759250124,30-CONST_BITS) ; FIX(0.707106781)
+F_1_306 equ DESCALE(1402911301,30-CONST_BITS) ; FIX(1.306562965)
+%endif
+
+; --------------------------------------------------------------------------
+ SECTION SEG_CONST
+
+; PRE_MULTIPLY_SCALE_BITS <= 2 (to avoid overflow)
+; CONST_BITS + CONST_SHIFT + PRE_MULTIPLY_SCALE_BITS == 16 (for pmulhw)
+
+%define PRE_MULTIPLY_SCALE_BITS 2
+%define CONST_SHIFT (16 - PRE_MULTIPLY_SCALE_BITS - CONST_BITS)
+
+ alignz 16
+ global EXTN(jconst_fdct_ifast_sse2)
+
+EXTN(jconst_fdct_ifast_sse2):
+
+PW_F0707 times 8 dw F_0_707 << CONST_SHIFT
+PW_F0382 times 8 dw F_0_382 << CONST_SHIFT
+PW_F0541 times 8 dw F_0_541 << CONST_SHIFT
+PW_F1306 times 8 dw F_1_306 << CONST_SHIFT
+
+ alignz 16
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Perform the forward DCT on one block of samples.
+;
+; GLOBAL(void)
+; jsimd_fdct_ifast_sse2 (DCTELEM * data)
+;
+
+%define data(b) (b)+8 ; DCTELEM * data
+
+%define original_ebp ebp+0
+%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
+%define WK_NUM 2
+
+ align 16
+ global EXTN(jsimd_fdct_ifast_sse2)
+
+EXTN(jsimd_fdct_ifast_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, [wk(0)]
+ pushpic ebx
+; push ecx ; unused
+; 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)] ; (DCTELEM *)
+
+ movdqa xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_DCTELEM)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_DCTELEM)]
+ movdqa xmm2, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_DCTELEM)]
+ movdqa xmm3, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_DCTELEM)]
+
+ ; xmm0=(00 01 02 03 04 05 06 07), xmm2=(20 21 22 23 24 25 26 27)
+ ; xmm1=(10 11 12 13 14 15 16 17), xmm3=(30 31 32 33 34 35 36 37)
+
+ movdqa xmm4,xmm0 ; transpose coefficients(phase 1)
+ punpcklwd xmm0,xmm1 ; xmm0=(00 10 01 11 02 12 03 13)
+ punpckhwd xmm4,xmm1 ; xmm4=(04 14 05 15 06 16 07 17)
+ movdqa xmm5,xmm2 ; transpose coefficients(phase 1)
+ punpcklwd xmm2,xmm3 ; xmm2=(20 30 21 31 22 32 23 33)
+ punpckhwd xmm5,xmm3 ; xmm5=(24 34 25 35 26 36 27 37)
+
+ movdqa xmm6, XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_DCTELEM)]
+ movdqa xmm7, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_DCTELEM)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_DCTELEM)]
+ movdqa xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_DCTELEM)]
+
+ ; xmm6=( 4 12 20 28 36 44 52 60), xmm1=( 6 14 22 30 38 46 54 62)
+ ; xmm7=( 5 13 21 29 37 45 53 61), xmm3=( 7 15 23 31 39 47 55 63)
+
+ movdqa XMMWORD [wk(0)], xmm2 ; wk(0)=(20 30 21 31 22 32 23 33)
+ movdqa XMMWORD [wk(1)], xmm5 ; wk(1)=(24 34 25 35 26 36 27 37)
+
+ movdqa xmm2,xmm6 ; transpose coefficients(phase 1)
+ punpcklwd xmm6,xmm7 ; xmm6=(40 50 41 51 42 52 43 53)
+ punpckhwd xmm2,xmm7 ; xmm2=(44 54 45 55 46 56 47 57)
+ movdqa xmm5,xmm1 ; transpose coefficients(phase 1)
+ punpcklwd xmm1,xmm3 ; xmm1=(60 70 61 71 62 72 63 73)
+ punpckhwd xmm5,xmm3 ; xmm5=(64 74 65 75 66 76 67 77)
+
+ movdqa xmm7,xmm6 ; transpose coefficients(phase 2)
+ punpckldq xmm6,xmm1 ; xmm6=(40 50 60 70 41 51 61 71)
+ punpckhdq xmm7,xmm1 ; xmm7=(42 52 62 72 43 53 63 73)
+ movdqa xmm3,xmm2 ; transpose coefficients(phase 2)
+ punpckldq xmm2,xmm5 ; xmm2=(44 54 64 74 45 55 65 75)
+ punpckhdq xmm3,xmm5 ; xmm3=(46 56 66 76 47 57 67 77)
+
+ movdqa xmm1, XMMWORD [wk(0)] ; xmm1=(20 30 21 31 22 32 23 33)
+ movdqa xmm5, XMMWORD [wk(1)] ; xmm5=(24 34 25 35 26 36 27 37)
+ movdqa XMMWORD [wk(0)], xmm7 ; wk(0)=(42 52 62 72 43 53 63 73)
+ movdqa XMMWORD [wk(1)], xmm2 ; wk(1)=(44 54 64 74 45 55 65 75)
+
+ movdqa xmm7,xmm0 ; transpose coefficients(phase 2)
+ punpckldq xmm0,xmm1 ; xmm0=(00 10 20 30 01 11 21 31)
+ punpckhdq xmm7,xmm1 ; xmm7=(02 12 22 32 03 13 23 33)
+ movdqa xmm2,xmm4 ; transpose coefficients(phase 2)
+ punpckldq xmm4,xmm5 ; xmm4=(04 14 24 34 05 15 25 35)
+ punpckhdq xmm2,xmm5 ; xmm2=(06 16 26 36 07 17 27 37)
+
+ movdqa xmm1,xmm0 ; transpose coefficients(phase 3)
+ punpcklqdq xmm0,xmm6 ; xmm0=(00 10 20 30 40 50 60 70)=data0
+ punpckhqdq xmm1,xmm6 ; xmm1=(01 11 21 31 41 51 61 71)=data1
+ movdqa xmm5,xmm2 ; transpose coefficients(phase 3)
+ punpcklqdq xmm2,xmm3 ; xmm2=(06 16 26 36 46 56 66 76)=data6
+ punpckhqdq xmm5,xmm3 ; xmm5=(07 17 27 37 47 57 67 77)=data7
+
+ movdqa xmm6,xmm1
+ movdqa xmm3,xmm0
+ psubw xmm1,xmm2 ; xmm1=data1-data6=tmp6
+ psubw xmm0,xmm5 ; xmm0=data0-data7=tmp7
+ paddw xmm6,xmm2 ; xmm6=data1+data6=tmp1
+ paddw xmm3,xmm5 ; xmm3=data0+data7=tmp0
+
+ movdqa xmm2, XMMWORD [wk(0)] ; xmm2=(42 52 62 72 43 53 63 73)
+ movdqa xmm5, XMMWORD [wk(1)] ; xmm5=(44 54 64 74 45 55 65 75)
+ movdqa XMMWORD [wk(0)], xmm1 ; wk(0)=tmp6
+ movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=tmp7
+
+ movdqa xmm1,xmm7 ; transpose coefficients(phase 3)
+ punpcklqdq xmm7,xmm2 ; xmm7=(02 12 22 32 42 52 62 72)=data2
+ punpckhqdq xmm1,xmm2 ; xmm1=(03 13 23 33 43 53 63 73)=data3
+ movdqa xmm0,xmm4 ; transpose coefficients(phase 3)
+ punpcklqdq xmm4,xmm5 ; xmm4=(04 14 24 34 44 54 64 74)=data4
+ punpckhqdq xmm0,xmm5 ; xmm0=(05 15 25 35 45 55 65 75)=data5
+
+ movdqa xmm2,xmm1
+ movdqa xmm5,xmm7
+ paddw xmm1,xmm4 ; xmm1=data3+data4=tmp3
+ paddw xmm7,xmm0 ; xmm7=data2+data5=tmp2
+ psubw xmm2,xmm4 ; xmm2=data3-data4=tmp4
+ psubw xmm5,xmm0 ; xmm5=data2-data5=tmp5
+
+ ; -- Even part
+
+ movdqa xmm4,xmm3
+ movdqa xmm0,xmm6
+ psubw xmm3,xmm1 ; xmm3=tmp13
+ psubw xmm6,xmm7 ; xmm6=tmp12
+ paddw xmm4,xmm1 ; xmm4=tmp10
+ paddw xmm0,xmm7 ; xmm0=tmp11
+
+ paddw xmm6,xmm3
+ psllw xmm6,PRE_MULTIPLY_SCALE_BITS
+ pmulhw xmm6,[GOTOFF(ebx,PW_F0707)] ; xmm6=z1
+
+ movdqa xmm1,xmm4
+ movdqa xmm7,xmm3
+ psubw xmm4,xmm0 ; xmm4=data4
+ psubw xmm3,xmm6 ; xmm3=data6
+ paddw xmm1,xmm0 ; xmm1=data0
+ paddw xmm7,xmm6 ; xmm7=data2
+
+ movdqa xmm0, XMMWORD [wk(0)] ; xmm0=tmp6
+ movdqa xmm6, XMMWORD [wk(1)] ; xmm6=tmp7
+ movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=data4
+ movdqa XMMWORD [wk(1)], xmm3 ; wk(1)=data6
+
+ ; -- Odd part
+
+ paddw xmm2,xmm5 ; xmm2=tmp10
+ paddw xmm5,xmm0 ; xmm5=tmp11
+ paddw xmm0,xmm6 ; xmm0=tmp12, xmm6=tmp7
+
+ psllw xmm2,PRE_MULTIPLY_SCALE_BITS
+ psllw xmm0,PRE_MULTIPLY_SCALE_BITS
+
+ psllw xmm5,PRE_MULTIPLY_SCALE_BITS
+ pmulhw xmm5,[GOTOFF(ebx,PW_F0707)] ; xmm5=z3
+
+ movdqa xmm4,xmm2 ; xmm4=tmp10
+ psubw xmm2,xmm0
+ pmulhw xmm2,[GOTOFF(ebx,PW_F0382)] ; xmm2=z5
+ pmulhw xmm4,[GOTOFF(ebx,PW_F0541)] ; xmm4=MULTIPLY(tmp10,FIX_0_541196)
+ pmulhw xmm0,[GOTOFF(ebx,PW_F1306)] ; xmm0=MULTIPLY(tmp12,FIX_1_306562)
+ paddw xmm4,xmm2 ; xmm4=z2
+ paddw xmm0,xmm2 ; xmm0=z4
+
+ movdqa xmm3,xmm6
+ psubw xmm6,xmm5 ; xmm6=z13
+ paddw xmm3,xmm5 ; xmm3=z11
+
+ movdqa xmm2,xmm6
+ movdqa xmm5,xmm3
+ psubw xmm6,xmm4 ; xmm6=data3
+ psubw xmm3,xmm0 ; xmm3=data7
+ paddw xmm2,xmm4 ; xmm2=data5
+ paddw xmm5,xmm0 ; xmm5=data1
+
+ ; ---- Pass 2: process columns.
+
+; mov edx, POINTER [data(eax)] ; (DCTELEM *)
+
+ ; xmm1=(00 10 20 30 40 50 60 70), xmm7=(02 12 22 32 42 52 62 72)
+ ; xmm5=(01 11 21 31 41 51 61 71), xmm6=(03 13 23 33 43 53 63 73)
+
+ movdqa xmm4,xmm1 ; transpose coefficients(phase 1)
+ punpcklwd xmm1,xmm5 ; xmm1=(00 01 10 11 20 21 30 31)
+ punpckhwd xmm4,xmm5 ; xmm4=(40 41 50 51 60 61 70 71)
+ movdqa xmm0,xmm7 ; transpose coefficients(phase 1)
+ punpcklwd xmm7,xmm6 ; xmm7=(02 03 12 13 22 23 32 33)
+ punpckhwd xmm0,xmm6 ; xmm0=(42 43 52 53 62 63 72 73)
+
+ movdqa xmm5, XMMWORD [wk(0)] ; xmm5=col4
+ movdqa xmm6, XMMWORD [wk(1)] ; xmm6=col6
+
+ ; xmm5=(04 14 24 34 44 54 64 74), xmm6=(06 16 26 36 46 56 66 76)
+ ; xmm2=(05 15 25 35 45 55 65 75), xmm3=(07 17 27 37 47 57 67 77)
+
+ movdqa XMMWORD [wk(0)], xmm7 ; wk(0)=(02 03 12 13 22 23 32 33)
+ movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=(42 43 52 53 62 63 72 73)
+
+ movdqa xmm7,xmm5 ; transpose coefficients(phase 1)
+ punpcklwd xmm5,xmm2 ; xmm5=(04 05 14 15 24 25 34 35)
+ punpckhwd xmm7,xmm2 ; xmm7=(44 45 54 55 64 65 74 75)
+ movdqa xmm0,xmm6 ; transpose coefficients(phase 1)
+ punpcklwd xmm6,xmm3 ; xmm6=(06 07 16 17 26 27 36 37)
+ punpckhwd xmm0,xmm3 ; xmm0=(46 47 56 57 66 67 76 77)
+
+ movdqa xmm2,xmm5 ; transpose coefficients(phase 2)
+ punpckldq xmm5,xmm6 ; xmm5=(04 05 06 07 14 15 16 17)
+ punpckhdq xmm2,xmm6 ; xmm2=(24 25 26 27 34 35 36 37)
+ movdqa xmm3,xmm7 ; transpose coefficients(phase 2)
+ punpckldq xmm7,xmm0 ; xmm7=(44 45 46 47 54 55 56 57)
+ punpckhdq xmm3,xmm0 ; xmm3=(64 65 66 67 74 75 76 77)
+
+ movdqa xmm6, XMMWORD [wk(0)] ; xmm6=(02 03 12 13 22 23 32 33)
+ movdqa xmm0, XMMWORD [wk(1)] ; xmm0=(42 43 52 53 62 63 72 73)
+ movdqa XMMWORD [wk(0)], xmm2 ; wk(0)=(24 25 26 27 34 35 36 37)
+ movdqa XMMWORD [wk(1)], xmm7 ; wk(1)=(44 45 46 47 54 55 56 57)
+
+ movdqa xmm2,xmm1 ; transpose coefficients(phase 2)
+ punpckldq xmm1,xmm6 ; xmm1=(00 01 02 03 10 11 12 13)
+ punpckhdq xmm2,xmm6 ; xmm2=(20 21 22 23 30 31 32 33)
+ movdqa xmm7,xmm4 ; transpose coefficients(phase 2)
+ punpckldq xmm4,xmm0 ; xmm4=(40 41 42 43 50 51 52 53)
+ punpckhdq xmm7,xmm0 ; xmm7=(60 61 62 63 70 71 72 73)
+
+ movdqa xmm6,xmm1 ; transpose coefficients(phase 3)
+ punpcklqdq xmm1,xmm5 ; xmm1=(00 01 02 03 04 05 06 07)=data0
+ punpckhqdq xmm6,xmm5 ; xmm6=(10 11 12 13 14 15 16 17)=data1
+ movdqa xmm0,xmm7 ; transpose coefficients(phase 3)
+ punpcklqdq xmm7,xmm3 ; xmm7=(60 61 62 63 64 65 66 67)=data6
+ punpckhqdq xmm0,xmm3 ; xmm0=(70 71 72 73 74 75 76 77)=data7
+
+ movdqa xmm5,xmm6
+ movdqa xmm3,xmm1
+ psubw xmm6,xmm7 ; xmm6=data1-data6=tmp6
+ psubw xmm1,xmm0 ; xmm1=data0-data7=tmp7
+ paddw xmm5,xmm7 ; xmm5=data1+data6=tmp1
+ paddw xmm3,xmm0 ; xmm3=data0+data7=tmp0
+
+ movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(24 25 26 27 34 35 36 37)
+ movdqa xmm0, XMMWORD [wk(1)] ; xmm0=(44 45 46 47 54 55 56 57)
+ movdqa XMMWORD [wk(0)], xmm6 ; wk(0)=tmp6
+ movdqa XMMWORD [wk(1)], xmm1 ; wk(1)=tmp7
+
+ movdqa xmm6,xmm2 ; transpose coefficients(phase 3)
+ punpcklqdq xmm2,xmm7 ; xmm2=(20 21 22 23 24 25 26 27)=data2
+ punpckhqdq xmm6,xmm7 ; xmm6=(30 31 32 33 34 35 36 37)=data3
+ movdqa xmm1,xmm4 ; transpose coefficients(phase 3)
+ punpcklqdq xmm4,xmm0 ; xmm4=(40 41 42 43 44 45 46 47)=data4
+ punpckhqdq xmm1,xmm0 ; xmm1=(50 51 52 53 54 55 56 57)=data5
+
+ movdqa xmm7,xmm6
+ movdqa xmm0,xmm2
+ paddw xmm6,xmm4 ; xmm6=data3+data4=tmp3
+ paddw xmm2,xmm1 ; xmm2=data2+data5=tmp2
+ psubw xmm7,xmm4 ; xmm7=data3-data4=tmp4
+ psubw xmm0,xmm1 ; xmm0=data2-data5=tmp5
+
+ ; -- Even part
+
+ movdqa xmm4,xmm3
+ movdqa xmm1,xmm5
+ psubw xmm3,xmm6 ; xmm3=tmp13
+ psubw xmm5,xmm2 ; xmm5=tmp12
+ paddw xmm4,xmm6 ; xmm4=tmp10
+ paddw xmm1,xmm2 ; xmm1=tmp11
+
+ paddw xmm5,xmm3
+ psllw xmm5,PRE_MULTIPLY_SCALE_BITS
+ pmulhw xmm5,[GOTOFF(ebx,PW_F0707)] ; xmm5=z1
+
+ movdqa xmm6,xmm4
+ movdqa xmm2,xmm3
+ psubw xmm4,xmm1 ; xmm4=data4
+ psubw xmm3,xmm5 ; xmm3=data6
+ paddw xmm6,xmm1 ; xmm6=data0
+ paddw xmm2,xmm5 ; xmm2=data2
+
+ movdqa XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_DCTELEM)], xmm4
+ movdqa XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_DCTELEM)], xmm3
+ movdqa XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_DCTELEM)], xmm6
+ movdqa XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_DCTELEM)], xmm2
+
+ ; -- Odd part
+
+ movdqa xmm1, XMMWORD [wk(0)] ; xmm1=tmp6
+ movdqa xmm5, XMMWORD [wk(1)] ; xmm5=tmp7
+
+ paddw xmm7,xmm0 ; xmm7=tmp10
+ paddw xmm0,xmm1 ; xmm0=tmp11
+ paddw xmm1,xmm5 ; xmm1=tmp12, xmm5=tmp7
+
+ psllw xmm7,PRE_MULTIPLY_SCALE_BITS
+ psllw xmm1,PRE_MULTIPLY_SCALE_BITS
+
+ psllw xmm0,PRE_MULTIPLY_SCALE_BITS
+ pmulhw xmm0,[GOTOFF(ebx,PW_F0707)] ; xmm0=z3
+
+ movdqa xmm4,xmm7 ; xmm4=tmp10
+ psubw xmm7,xmm1
+ pmulhw xmm7,[GOTOFF(ebx,PW_F0382)] ; xmm7=z5
+ pmulhw xmm4,[GOTOFF(ebx,PW_F0541)] ; xmm4=MULTIPLY(tmp10,FIX_0_541196)
+ pmulhw xmm1,[GOTOFF(ebx,PW_F1306)] ; xmm1=MULTIPLY(tmp12,FIX_1_306562)
+ paddw xmm4,xmm7 ; xmm4=z2
+ paddw xmm1,xmm7 ; xmm1=z4
+
+ movdqa xmm3,xmm5
+ psubw xmm5,xmm0 ; xmm5=z13
+ paddw xmm3,xmm0 ; xmm3=z11
+
+ movdqa xmm6,xmm5
+ movdqa xmm2,xmm3
+ psubw xmm5,xmm4 ; xmm5=data3
+ psubw xmm3,xmm1 ; xmm3=data7
+ paddw xmm6,xmm4 ; xmm6=data5
+ paddw xmm2,xmm1 ; xmm2=data1
+
+ movdqa XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_DCTELEM)], xmm5
+ movdqa XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_DCTELEM)], xmm3
+ movdqa XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_DCTELEM)], xmm6
+ movdqa XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_DCTELEM)], xmm2
+
+; pop edi ; unused
+; pop esi ; unused
+; pop edx ; need not be preserved
+; pop ecx ; unused
+ poppic ebx
+ mov esp,ebp ; esp <- aligned ebp
+ pop esp ; esp <- original ebp
+ pop ebp
+ ret
+
--- /dev/null
+;
+; jfss2int.asm - accurate integer FDCT (SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; Based on
+; 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 slow-but-accurate integer implementation of the
+; forward DCT (Discrete Cosine Transform). The following code is based
+; directly on the IJG's original jfdctint.c; see the jfdctint.c for
+; more details.
+;
+; [TAB8]
+
+%include "simd/jsimdext.inc"
+%include "simd/jdct.inc"
+
+; --------------------------------------------------------------------------
+
+%define CONST_BITS 13
+%define PASS1_BITS 2
+
+%define DESCALE_P1 (CONST_BITS-PASS1_BITS)
+%define DESCALE_P2 (CONST_BITS+PASS1_BITS)
+
+%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 16
+ global EXTN(jconst_fdct_islow_sse2)
+
+EXTN(jconst_fdct_islow_sse2):
+
+PW_F130_F054 times 4 dw (F_0_541+F_0_765), F_0_541
+PW_F054_MF130 times 4 dw F_0_541, (F_0_541-F_1_847)
+PW_MF078_F117 times 4 dw (F_1_175-F_1_961), F_1_175
+PW_F117_F078 times 4 dw F_1_175, (F_1_175-F_0_390)
+PW_MF060_MF089 times 4 dw (F_0_298-F_0_899),-F_0_899
+PW_MF089_F060 times 4 dw -F_0_899, (F_1_501-F_0_899)
+PW_MF050_MF256 times 4 dw (F_2_053-F_2_562),-F_2_562
+PW_MF256_F050 times 4 dw -F_2_562, (F_3_072-F_2_562)
+PD_DESCALE_P1 times 4 dd 1 << (DESCALE_P1-1)
+PD_DESCALE_P2 times 4 dd 1 << (DESCALE_P2-1)
+PW_DESCALE_P2X times 8 dw 1 << (PASS1_BITS-1)
+
+ alignz 16
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Perform the forward DCT on one block of samples.
+;
+; GLOBAL(void)
+; jsimd_fdct_islow_sse2 (DCTELEM * data)
+;
+
+%define data(b) (b)+8 ; DCTELEM * data
+
+%define original_ebp ebp+0
+%define wk(i) ebp-(WK_NUM-(i))*SIZEOF_XMMWORD ; xmmword wk[WK_NUM]
+%define WK_NUM 6
+
+ align 16
+ global EXTN(jsimd_fdct_islow_sse2)
+
+EXTN(jsimd_fdct_islow_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, [wk(0)]
+ pushpic ebx
+; push ecx ; unused
+; 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)] ; (DCTELEM *)
+
+ movdqa xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_DCTELEM)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_DCTELEM)]
+ movdqa xmm2, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_DCTELEM)]
+ movdqa xmm3, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_DCTELEM)]
+
+ ; xmm0=(00 01 02 03 04 05 06 07), xmm2=(20 21 22 23 24 25 26 27)
+ ; xmm1=(10 11 12 13 14 15 16 17), xmm3=(30 31 32 33 34 35 36 37)
+
+ movdqa xmm4,xmm0 ; transpose coefficients(phase 1)
+ punpcklwd xmm0,xmm1 ; xmm0=(00 10 01 11 02 12 03 13)
+ punpckhwd xmm4,xmm1 ; xmm4=(04 14 05 15 06 16 07 17)
+ movdqa xmm5,xmm2 ; transpose coefficients(phase 1)
+ punpcklwd xmm2,xmm3 ; xmm2=(20 30 21 31 22 32 23 33)
+ punpckhwd xmm5,xmm3 ; xmm5=(24 34 25 35 26 36 27 37)
+
+ movdqa xmm6, XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_DCTELEM)]
+ movdqa xmm7, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_DCTELEM)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_DCTELEM)]
+ movdqa xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_DCTELEM)]
+
+ ; xmm6=( 4 12 20 28 36 44 52 60), xmm1=( 6 14 22 30 38 46 54 62)
+ ; xmm7=( 5 13 21 29 37 45 53 61), xmm3=( 7 15 23 31 39 47 55 63)
+
+ movdqa XMMWORD [wk(0)], xmm2 ; wk(0)=(20 30 21 31 22 32 23 33)
+ movdqa XMMWORD [wk(1)], xmm5 ; wk(1)=(24 34 25 35 26 36 27 37)
+
+ movdqa xmm2,xmm6 ; transpose coefficients(phase 1)
+ punpcklwd xmm6,xmm7 ; xmm6=(40 50 41 51 42 52 43 53)
+ punpckhwd xmm2,xmm7 ; xmm2=(44 54 45 55 46 56 47 57)
+ movdqa xmm5,xmm1 ; transpose coefficients(phase 1)
+ punpcklwd xmm1,xmm3 ; xmm1=(60 70 61 71 62 72 63 73)
+ punpckhwd xmm5,xmm3 ; xmm5=(64 74 65 75 66 76 67 77)
+
+ movdqa xmm7,xmm6 ; transpose coefficients(phase 2)
+ punpckldq xmm6,xmm1 ; xmm6=(40 50 60 70 41 51 61 71)
+ punpckhdq xmm7,xmm1 ; xmm7=(42 52 62 72 43 53 63 73)
+ movdqa xmm3,xmm2 ; transpose coefficients(phase 2)
+ punpckldq xmm2,xmm5 ; xmm2=(44 54 64 74 45 55 65 75)
+ punpckhdq xmm3,xmm5 ; xmm3=(46 56 66 76 47 57 67 77)
+
+ movdqa xmm1, XMMWORD [wk(0)] ; xmm1=(20 30 21 31 22 32 23 33)
+ movdqa xmm5, XMMWORD [wk(1)] ; xmm5=(24 34 25 35 26 36 27 37)
+ movdqa XMMWORD [wk(2)], xmm7 ; wk(2)=(42 52 62 72 43 53 63 73)
+ movdqa XMMWORD [wk(3)], xmm2 ; wk(3)=(44 54 64 74 45 55 65 75)
+
+ movdqa xmm7,xmm0 ; transpose coefficients(phase 2)
+ punpckldq xmm0,xmm1 ; xmm0=(00 10 20 30 01 11 21 31)
+ punpckhdq xmm7,xmm1 ; xmm7=(02 12 22 32 03 13 23 33)
+ movdqa xmm2,xmm4 ; transpose coefficients(phase 2)
+ punpckldq xmm4,xmm5 ; xmm4=(04 14 24 34 05 15 25 35)
+ punpckhdq xmm2,xmm5 ; xmm2=(06 16 26 36 07 17 27 37)
+
+ movdqa xmm1,xmm0 ; transpose coefficients(phase 3)
+ punpcklqdq xmm0,xmm6 ; xmm0=(00 10 20 30 40 50 60 70)=data0
+ punpckhqdq xmm1,xmm6 ; xmm1=(01 11 21 31 41 51 61 71)=data1
+ movdqa xmm5,xmm2 ; transpose coefficients(phase 3)
+ punpcklqdq xmm2,xmm3 ; xmm2=(06 16 26 36 46 56 66 76)=data6
+ punpckhqdq xmm5,xmm3 ; xmm5=(07 17 27 37 47 57 67 77)=data7
+
+ movdqa xmm6,xmm1
+ movdqa xmm3,xmm0
+ psubw xmm1,xmm2 ; xmm1=data1-data6=tmp6
+ psubw xmm0,xmm5 ; xmm0=data0-data7=tmp7
+ paddw xmm6,xmm2 ; xmm6=data1+data6=tmp1
+ paddw xmm3,xmm5 ; xmm3=data0+data7=tmp0
+
+ movdqa xmm2, XMMWORD [wk(2)] ; xmm2=(42 52 62 72 43 53 63 73)
+ movdqa xmm5, XMMWORD [wk(3)] ; xmm5=(44 54 64 74 45 55 65 75)
+ movdqa XMMWORD [wk(0)], xmm1 ; wk(0)=tmp6
+ movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=tmp7
+
+ movdqa xmm1,xmm7 ; transpose coefficients(phase 3)
+ punpcklqdq xmm7,xmm2 ; xmm7=(02 12 22 32 42 52 62 72)=data2
+ punpckhqdq xmm1,xmm2 ; xmm1=(03 13 23 33 43 53 63 73)=data3
+ movdqa xmm0,xmm4 ; transpose coefficients(phase 3)
+ punpcklqdq xmm4,xmm5 ; xmm4=(04 14 24 34 44 54 64 74)=data4
+ punpckhqdq xmm0,xmm5 ; xmm0=(05 15 25 35 45 55 65 75)=data5
+
+ movdqa xmm2,xmm1
+ movdqa xmm5,xmm7
+ paddw xmm1,xmm4 ; xmm1=data3+data4=tmp3
+ paddw xmm7,xmm0 ; xmm7=data2+data5=tmp2
+ psubw xmm2,xmm4 ; xmm2=data3-data4=tmp4
+ psubw xmm5,xmm0 ; xmm5=data2-data5=tmp5
+
+ ; -- Even part
+
+ movdqa xmm4,xmm3
+ movdqa xmm0,xmm6
+ paddw xmm3,xmm1 ; xmm3=tmp10
+ paddw xmm6,xmm7 ; xmm6=tmp11
+ psubw xmm4,xmm1 ; xmm4=tmp13
+ psubw xmm0,xmm7 ; xmm0=tmp12
+
+ movdqa xmm1,xmm3
+ paddw xmm3,xmm6 ; xmm3=tmp10+tmp11
+ psubw xmm1,xmm6 ; xmm1=tmp10-tmp11
+
+ psllw xmm3,PASS1_BITS ; xmm3=data0
+ psllw xmm1,PASS1_BITS ; xmm1=data4
+
+ movdqa XMMWORD [wk(2)], xmm3 ; wk(2)=data0
+ movdqa XMMWORD [wk(3)], xmm1 ; wk(3)=data4
+
+ ; (Original)
+ ; z1 = (tmp12 + tmp13) * 0.541196100;
+ ; data2 = z1 + tmp13 * 0.765366865;
+ ; data6 = z1 + tmp12 * -1.847759065;
+ ;
+ ; (This implementation)
+ ; data2 = tmp13 * (0.541196100 + 0.765366865) + tmp12 * 0.541196100;
+ ; data6 = tmp13 * 0.541196100 + tmp12 * (0.541196100 - 1.847759065);
+
+ movdqa xmm7,xmm4 ; xmm4=tmp13
+ movdqa xmm6,xmm4
+ punpcklwd xmm7,xmm0 ; xmm0=tmp12
+ punpckhwd xmm6,xmm0
+ movdqa xmm4,xmm7
+ movdqa xmm0,xmm6
+ pmaddwd xmm7,[GOTOFF(ebx,PW_F130_F054)] ; xmm7=data2L
+ pmaddwd xmm6,[GOTOFF(ebx,PW_F130_F054)] ; xmm6=data2H
+ pmaddwd xmm4,[GOTOFF(ebx,PW_F054_MF130)] ; xmm4=data6L
+ pmaddwd xmm0,[GOTOFF(ebx,PW_F054_MF130)] ; xmm0=data6H
+
+ paddd xmm7,[GOTOFF(ebx,PD_DESCALE_P1)]
+ paddd xmm6,[GOTOFF(ebx,PD_DESCALE_P1)]
+ psrad xmm7,DESCALE_P1
+ psrad xmm6,DESCALE_P1
+ paddd xmm4,[GOTOFF(ebx,PD_DESCALE_P1)]
+ paddd xmm0,[GOTOFF(ebx,PD_DESCALE_P1)]
+ psrad xmm4,DESCALE_P1
+ psrad xmm0,DESCALE_P1
+
+ packssdw xmm7,xmm6 ; xmm7=data2
+ packssdw xmm4,xmm0 ; xmm4=data6
+
+ movdqa XMMWORD [wk(4)], xmm7 ; wk(4)=data2
+ movdqa XMMWORD [wk(5)], xmm4 ; wk(5)=data6
+
+ ; -- Odd part
+
+ movdqa xmm3, XMMWORD [wk(0)] ; xmm3=tmp6
+ movdqa xmm1, XMMWORD [wk(1)] ; xmm1=tmp7
+
+ movdqa xmm6,xmm2 ; xmm2=tmp4
+ movdqa xmm0,xmm5 ; xmm5=tmp5
+ paddw xmm6,xmm3 ; xmm6=z3
+ paddw xmm0,xmm1 ; xmm0=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);
+
+ movdqa xmm7,xmm6
+ movdqa xmm4,xmm6
+ punpcklwd xmm7,xmm0
+ punpckhwd xmm4,xmm0
+ movdqa xmm6,xmm7
+ movdqa xmm0,xmm4
+ pmaddwd xmm7,[GOTOFF(ebx,PW_MF078_F117)] ; xmm7=z3L
+ pmaddwd xmm4,[GOTOFF(ebx,PW_MF078_F117)] ; xmm4=z3H
+ pmaddwd xmm6,[GOTOFF(ebx,PW_F117_F078)] ; xmm6=z4L
+ pmaddwd xmm0,[GOTOFF(ebx,PW_F117_F078)] ; xmm0=z4H
+
+ movdqa XMMWORD [wk(0)], xmm7 ; wk(0)=z3L
+ movdqa XMMWORD [wk(1)], xmm4 ; wk(1)=z3H
+
+ ; (Original)
+ ; z1 = tmp4 + tmp7; z2 = tmp5 + tmp6;
+ ; tmp4 = tmp4 * 0.298631336; tmp5 = tmp5 * 2.053119869;
+ ; tmp6 = tmp6 * 3.072711026; tmp7 = tmp7 * 1.501321110;
+ ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447;
+ ; data7 = tmp4 + z1 + z3; data5 = tmp5 + z2 + z4;
+ ; data3 = tmp6 + z2 + z3; data1 = tmp7 + z1 + z4;
+ ;
+ ; (This implementation)
+ ; tmp4 = tmp4 * (0.298631336 - 0.899976223) + tmp7 * -0.899976223;
+ ; tmp5 = tmp5 * (2.053119869 - 2.562915447) + tmp6 * -2.562915447;
+ ; tmp6 = tmp5 * -2.562915447 + tmp6 * (3.072711026 - 2.562915447);
+ ; tmp7 = tmp4 * -0.899976223 + tmp7 * (1.501321110 - 0.899976223);
+ ; data7 = tmp4 + z3; data5 = tmp5 + z4;
+ ; data3 = tmp6 + z3; data1 = tmp7 + z4;
+
+ movdqa xmm7,xmm2
+ movdqa xmm4,xmm2
+ punpcklwd xmm7,xmm1
+ punpckhwd xmm4,xmm1
+ movdqa xmm2,xmm7
+ movdqa xmm1,xmm4
+ pmaddwd xmm7,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm7=tmp4L
+ pmaddwd xmm4,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm4=tmp4H
+ pmaddwd xmm2,[GOTOFF(ebx,PW_MF089_F060)] ; xmm2=tmp7L
+ pmaddwd xmm1,[GOTOFF(ebx,PW_MF089_F060)] ; xmm1=tmp7H
+
+ paddd xmm7, XMMWORD [wk(0)] ; xmm7=data7L
+ paddd xmm4, XMMWORD [wk(1)] ; xmm4=data7H
+ paddd xmm2,xmm6 ; xmm2=data1L
+ paddd xmm1,xmm0 ; xmm1=data1H
+
+ paddd xmm7,[GOTOFF(ebx,PD_DESCALE_P1)]
+ paddd xmm4,[GOTOFF(ebx,PD_DESCALE_P1)]
+ psrad xmm7,DESCALE_P1
+ psrad xmm4,DESCALE_P1
+ paddd xmm2,[GOTOFF(ebx,PD_DESCALE_P1)]
+ paddd xmm1,[GOTOFF(ebx,PD_DESCALE_P1)]
+ psrad xmm2,DESCALE_P1
+ psrad xmm1,DESCALE_P1
+
+ packssdw xmm7,xmm4 ; xmm7=data7
+ packssdw xmm2,xmm1 ; xmm2=data1
+
+ movdqa xmm4,xmm5
+ movdqa xmm1,xmm5
+ punpcklwd xmm4,xmm3
+ punpckhwd xmm1,xmm3
+ movdqa xmm5,xmm4
+ movdqa xmm3,xmm1
+ pmaddwd xmm4,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm4=tmp5L
+ pmaddwd xmm1,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm1=tmp5H
+ pmaddwd xmm5,[GOTOFF(ebx,PW_MF256_F050)] ; xmm5=tmp6L
+ pmaddwd xmm3,[GOTOFF(ebx,PW_MF256_F050)] ; xmm3=tmp6H
+
+ paddd xmm4,xmm6 ; xmm4=data5L
+ paddd xmm1,xmm0 ; xmm1=data5H
+ paddd xmm5, XMMWORD [wk(0)] ; xmm5=data3L
+ paddd xmm3, XMMWORD [wk(1)] ; xmm3=data3H
+
+ paddd xmm4,[GOTOFF(ebx,PD_DESCALE_P1)]
+ paddd xmm1,[GOTOFF(ebx,PD_DESCALE_P1)]
+ psrad xmm4,DESCALE_P1
+ psrad xmm1,DESCALE_P1
+ paddd xmm5,[GOTOFF(ebx,PD_DESCALE_P1)]
+ paddd xmm3,[GOTOFF(ebx,PD_DESCALE_P1)]
+ psrad xmm5,DESCALE_P1
+ psrad xmm3,DESCALE_P1
+
+ packssdw xmm4,xmm1 ; xmm4=data5
+ packssdw xmm5,xmm3 ; xmm5=data3
+
+ ; ---- Pass 2: process columns.
+
+; mov edx, POINTER [data(eax)] ; (DCTELEM *)
+
+ movdqa xmm6, XMMWORD [wk(2)] ; xmm6=col0
+ movdqa xmm0, XMMWORD [wk(4)] ; xmm0=col2
+
+ ; xmm6=(00 10 20 30 40 50 60 70), xmm0=(02 12 22 32 42 52 62 72)
+ ; xmm2=(01 11 21 31 41 51 61 71), xmm5=(03 13 23 33 43 53 63 73)
+
+ movdqa xmm1,xmm6 ; transpose coefficients(phase 1)
+ punpcklwd xmm6,xmm2 ; xmm6=(00 01 10 11 20 21 30 31)
+ punpckhwd xmm1,xmm2 ; xmm1=(40 41 50 51 60 61 70 71)
+ movdqa xmm3,xmm0 ; transpose coefficients(phase 1)
+ punpcklwd xmm0,xmm5 ; xmm0=(02 03 12 13 22 23 32 33)
+ punpckhwd xmm3,xmm5 ; xmm3=(42 43 52 53 62 63 72 73)
+
+ movdqa xmm2, XMMWORD [wk(3)] ; xmm2=col4
+ movdqa xmm5, XMMWORD [wk(5)] ; xmm5=col6
+
+ ; xmm2=(04 14 24 34 44 54 64 74), xmm5=(06 16 26 36 46 56 66 76)
+ ; xmm4=(05 15 25 35 45 55 65 75), xmm7=(07 17 27 37 47 57 67 77)
+
+ movdqa XMMWORD [wk(0)], xmm0 ; wk(0)=(02 03 12 13 22 23 32 33)
+ movdqa XMMWORD [wk(1)], xmm3 ; wk(1)=(42 43 52 53 62 63 72 73)
+
+ movdqa xmm0,xmm2 ; transpose coefficients(phase 1)
+ punpcklwd xmm2,xmm4 ; xmm2=(04 05 14 15 24 25 34 35)
+ punpckhwd xmm0,xmm4 ; xmm0=(44 45 54 55 64 65 74 75)
+ movdqa xmm3,xmm5 ; transpose coefficients(phase 1)
+ punpcklwd xmm5,xmm7 ; xmm5=(06 07 16 17 26 27 36 37)
+ punpckhwd xmm3,xmm7 ; xmm3=(46 47 56 57 66 67 76 77)
+
+ movdqa xmm4,xmm2 ; transpose coefficients(phase 2)
+ punpckldq xmm2,xmm5 ; xmm2=(04 05 06 07 14 15 16 17)
+ punpckhdq xmm4,xmm5 ; xmm4=(24 25 26 27 34 35 36 37)
+ movdqa xmm7,xmm0 ; transpose coefficients(phase 2)
+ punpckldq xmm0,xmm3 ; xmm0=(44 45 46 47 54 55 56 57)
+ punpckhdq xmm7,xmm3 ; xmm7=(64 65 66 67 74 75 76 77)
+
+ movdqa xmm5, XMMWORD [wk(0)] ; xmm5=(02 03 12 13 22 23 32 33)
+ movdqa xmm3, XMMWORD [wk(1)] ; xmm3=(42 43 52 53 62 63 72 73)
+ movdqa XMMWORD [wk(2)], xmm4 ; wk(2)=(24 25 26 27 34 35 36 37)
+ movdqa XMMWORD [wk(3)], xmm0 ; wk(3)=(44 45 46 47 54 55 56 57)
+
+ movdqa xmm4,xmm6 ; transpose coefficients(phase 2)
+ punpckldq xmm6,xmm5 ; xmm6=(00 01 02 03 10 11 12 13)
+ punpckhdq xmm4,xmm5 ; xmm4=(20 21 22 23 30 31 32 33)
+ movdqa xmm0,xmm1 ; transpose coefficients(phase 2)
+ punpckldq xmm1,xmm3 ; xmm1=(40 41 42 43 50 51 52 53)
+ punpckhdq xmm0,xmm3 ; xmm0=(60 61 62 63 70 71 72 73)
+
+ movdqa xmm5,xmm6 ; transpose coefficients(phase 3)
+ punpcklqdq xmm6,xmm2 ; xmm6=(00 01 02 03 04 05 06 07)=data0
+ punpckhqdq xmm5,xmm2 ; xmm5=(10 11 12 13 14 15 16 17)=data1
+ movdqa xmm3,xmm0 ; transpose coefficients(phase 3)
+ punpcklqdq xmm0,xmm7 ; xmm0=(60 61 62 63 64 65 66 67)=data6
+ punpckhqdq xmm3,xmm7 ; xmm3=(70 71 72 73 74 75 76 77)=data7
+
+ movdqa xmm2,xmm5
+ movdqa xmm7,xmm6
+ psubw xmm5,xmm0 ; xmm5=data1-data6=tmp6
+ psubw xmm6,xmm3 ; xmm6=data0-data7=tmp7
+ paddw xmm2,xmm0 ; xmm2=data1+data6=tmp1
+ paddw xmm7,xmm3 ; xmm7=data0+data7=tmp0
+
+ movdqa xmm0, XMMWORD [wk(2)] ; xmm0=(24 25 26 27 34 35 36 37)
+ movdqa xmm3, XMMWORD [wk(3)] ; xmm3=(44 45 46 47 54 55 56 57)
+ movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=tmp6
+ movdqa XMMWORD [wk(1)], xmm6 ; wk(1)=tmp7
+
+ movdqa xmm5,xmm4 ; transpose coefficients(phase 3)
+ punpcklqdq xmm4,xmm0 ; xmm4=(20 21 22 23 24 25 26 27)=data2
+ punpckhqdq xmm5,xmm0 ; xmm5=(30 31 32 33 34 35 36 37)=data3
+ movdqa xmm6,xmm1 ; transpose coefficients(phase 3)
+ punpcklqdq xmm1,xmm3 ; xmm1=(40 41 42 43 44 45 46 47)=data4
+ punpckhqdq xmm6,xmm3 ; xmm6=(50 51 52 53 54 55 56 57)=data5
+
+ movdqa xmm0,xmm5
+ movdqa xmm3,xmm4
+ paddw xmm5,xmm1 ; xmm5=data3+data4=tmp3
+ paddw xmm4,xmm6 ; xmm4=data2+data5=tmp2
+ psubw xmm0,xmm1 ; xmm0=data3-data4=tmp4
+ psubw xmm3,xmm6 ; xmm3=data2-data5=tmp5
+
+ ; -- Even part
+
+ movdqa xmm1,xmm7
+ movdqa xmm6,xmm2
+ paddw xmm7,xmm5 ; xmm7=tmp10
+ paddw xmm2,xmm4 ; xmm2=tmp11
+ psubw xmm1,xmm5 ; xmm1=tmp13
+ psubw xmm6,xmm4 ; xmm6=tmp12
+
+ movdqa xmm5,xmm7
+ paddw xmm7,xmm2 ; xmm7=tmp10+tmp11
+ psubw xmm5,xmm2 ; xmm5=tmp10-tmp11
+
+ paddw xmm7,[GOTOFF(ebx,PW_DESCALE_P2X)]
+ paddw xmm5,[GOTOFF(ebx,PW_DESCALE_P2X)]
+ psraw xmm7,PASS1_BITS ; xmm7=data0
+ psraw xmm5,PASS1_BITS ; xmm5=data4
+
+ movdqa XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_DCTELEM)], xmm7
+ movdqa XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_DCTELEM)], xmm5
+
+ ; (Original)
+ ; z1 = (tmp12 + tmp13) * 0.541196100;
+ ; data2 = z1 + tmp13 * 0.765366865;
+ ; data6 = z1 + tmp12 * -1.847759065;
+ ;
+ ; (This implementation)
+ ; data2 = tmp13 * (0.541196100 + 0.765366865) + tmp12 * 0.541196100;
+ ; data6 = tmp13 * 0.541196100 + tmp12 * (0.541196100 - 1.847759065);
+
+ movdqa xmm4,xmm1 ; xmm1=tmp13
+ movdqa xmm2,xmm1
+ punpcklwd xmm4,xmm6 ; xmm6=tmp12
+ punpckhwd xmm2,xmm6
+ movdqa xmm1,xmm4
+ movdqa xmm6,xmm2
+ pmaddwd xmm4,[GOTOFF(ebx,PW_F130_F054)] ; xmm4=data2L
+ pmaddwd xmm2,[GOTOFF(ebx,PW_F130_F054)] ; xmm2=data2H
+ pmaddwd xmm1,[GOTOFF(ebx,PW_F054_MF130)] ; xmm1=data6L
+ pmaddwd xmm6,[GOTOFF(ebx,PW_F054_MF130)] ; xmm6=data6H
+
+ paddd xmm4,[GOTOFF(ebx,PD_DESCALE_P2)]
+ paddd xmm2,[GOTOFF(ebx,PD_DESCALE_P2)]
+ psrad xmm4,DESCALE_P2
+ psrad xmm2,DESCALE_P2
+ paddd xmm1,[GOTOFF(ebx,PD_DESCALE_P2)]
+ paddd xmm6,[GOTOFF(ebx,PD_DESCALE_P2)]
+ psrad xmm1,DESCALE_P2
+ psrad xmm6,DESCALE_P2
+
+ packssdw xmm4,xmm2 ; xmm4=data2
+ packssdw xmm1,xmm6 ; xmm1=data6
+
+ movdqa XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_DCTELEM)], xmm4
+ movdqa XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_DCTELEM)], xmm1
+
+ ; -- Odd part
+
+ movdqa xmm7, XMMWORD [wk(0)] ; xmm7=tmp6
+ movdqa xmm5, XMMWORD [wk(1)] ; xmm5=tmp7
+
+ movdqa xmm2,xmm0 ; xmm0=tmp4
+ movdqa xmm6,xmm3 ; xmm3=tmp5
+ paddw xmm2,xmm7 ; xmm2=z3
+ paddw xmm6,xmm5 ; xmm6=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);
+
+ movdqa xmm4,xmm2
+ movdqa xmm1,xmm2
+ punpcklwd xmm4,xmm6
+ punpckhwd xmm1,xmm6
+ movdqa xmm2,xmm4
+ movdqa xmm6,xmm1
+ pmaddwd xmm4,[GOTOFF(ebx,PW_MF078_F117)] ; xmm4=z3L
+ pmaddwd xmm1,[GOTOFF(ebx,PW_MF078_F117)] ; xmm1=z3H
+ pmaddwd xmm2,[GOTOFF(ebx,PW_F117_F078)] ; xmm2=z4L
+ pmaddwd xmm6,[GOTOFF(ebx,PW_F117_F078)] ; xmm6=z4H
+
+ movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=z3L
+ movdqa XMMWORD [wk(1)], xmm1 ; wk(1)=z3H
+
+ ; (Original)
+ ; z1 = tmp4 + tmp7; z2 = tmp5 + tmp6;
+ ; tmp4 = tmp4 * 0.298631336; tmp5 = tmp5 * 2.053119869;
+ ; tmp6 = tmp6 * 3.072711026; tmp7 = tmp7 * 1.501321110;
+ ; z1 = z1 * -0.899976223; z2 = z2 * -2.562915447;
+ ; data7 = tmp4 + z1 + z3; data5 = tmp5 + z2 + z4;
+ ; data3 = tmp6 + z2 + z3; data1 = tmp7 + z1 + z4;
+ ;
+ ; (This implementation)
+ ; tmp4 = tmp4 * (0.298631336 - 0.899976223) + tmp7 * -0.899976223;
+ ; tmp5 = tmp5 * (2.053119869 - 2.562915447) + tmp6 * -2.562915447;
+ ; tmp6 = tmp5 * -2.562915447 + tmp6 * (3.072711026 - 2.562915447);
+ ; tmp7 = tmp4 * -0.899976223 + tmp7 * (1.501321110 - 0.899976223);
+ ; data7 = tmp4 + z3; data5 = tmp5 + z4;
+ ; data3 = tmp6 + z3; data1 = tmp7 + z4;
+
+ movdqa xmm4,xmm0
+ movdqa xmm1,xmm0
+ punpcklwd xmm4,xmm5
+ punpckhwd xmm1,xmm5
+ movdqa xmm0,xmm4
+ movdqa xmm5,xmm1
+ pmaddwd xmm4,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm4=tmp4L
+ pmaddwd xmm1,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm1=tmp4H
+ pmaddwd xmm0,[GOTOFF(ebx,PW_MF089_F060)] ; xmm0=tmp7L
+ pmaddwd xmm5,[GOTOFF(ebx,PW_MF089_F060)] ; xmm5=tmp7H
+
+ paddd xmm4, XMMWORD [wk(0)] ; xmm4=data7L
+ paddd xmm1, XMMWORD [wk(1)] ; xmm1=data7H
+ paddd xmm0,xmm2 ; xmm0=data1L
+ paddd xmm5,xmm6 ; xmm5=data1H
+
+ paddd xmm4,[GOTOFF(ebx,PD_DESCALE_P2)]
+ paddd xmm1,[GOTOFF(ebx,PD_DESCALE_P2)]
+ psrad xmm4,DESCALE_P2
+ psrad xmm1,DESCALE_P2
+ paddd xmm0,[GOTOFF(ebx,PD_DESCALE_P2)]
+ paddd xmm5,[GOTOFF(ebx,PD_DESCALE_P2)]
+ psrad xmm0,DESCALE_P2
+ psrad xmm5,DESCALE_P2
+
+ packssdw xmm4,xmm1 ; xmm4=data7
+ packssdw xmm0,xmm5 ; xmm0=data1
+
+ movdqa XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_DCTELEM)], xmm4
+ movdqa XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_DCTELEM)], xmm0
+
+ movdqa xmm1,xmm3
+ movdqa xmm5,xmm3
+ punpcklwd xmm1,xmm7
+ punpckhwd xmm5,xmm7
+ movdqa xmm3,xmm1
+ movdqa xmm7,xmm5
+ pmaddwd xmm1,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm1=tmp5L
+ pmaddwd xmm5,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm5=tmp5H
+ pmaddwd xmm3,[GOTOFF(ebx,PW_MF256_F050)] ; xmm3=tmp6L
+ pmaddwd xmm7,[GOTOFF(ebx,PW_MF256_F050)] ; xmm7=tmp6H
+
+ paddd xmm1,xmm2 ; xmm1=data5L
+ paddd xmm5,xmm6 ; xmm5=data5H
+ paddd xmm3, XMMWORD [wk(0)] ; xmm3=data3L
+ paddd xmm7, XMMWORD [wk(1)] ; xmm7=data3H
+
+ paddd xmm1,[GOTOFF(ebx,PD_DESCALE_P2)]
+ paddd xmm5,[GOTOFF(ebx,PD_DESCALE_P2)]
+ psrad xmm1,DESCALE_P2
+ psrad xmm5,DESCALE_P2
+ paddd xmm3,[GOTOFF(ebx,PD_DESCALE_P2)]
+ paddd xmm7,[GOTOFF(ebx,PD_DESCALE_P2)]
+ psrad xmm3,DESCALE_P2
+ psrad xmm7,DESCALE_P2
+
+ packssdw xmm1,xmm5 ; xmm1=data5
+ packssdw xmm3,xmm7 ; xmm3=data3
+
+ movdqa XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_DCTELEM)], xmm1
+ movdqa XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_DCTELEM)], xmm3
+
+; pop edi ; unused
+; pop esi ; unused
+; pop edx ; need not be preserved
+; pop ecx ; unused
+ poppic ebx
+ mov esp,ebp ; esp <- aligned ebp
+ pop esp ; esp <- original ebp
+ pop ebp
+ ret
+
--- /dev/null
+;
+; jiss2flt.asm - floating-point IDCT (SSE & SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; Based on
+; 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.
+;
+; [TAB8]
+
+%include "simd/jsimdext.inc"
+%include "simd/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 16
+ global EXTN(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 16
+
+; --------------------------------------------------------------------------
+ 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 16
+ global EXTN(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
+
--- /dev/null
+;
+; jiss2fst.asm - fast integer IDCT (SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; Based on
+; 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 fast, not so accurate integer implementation of
+; the inverse DCT (Discrete Cosine Transform). The following code is
+; based directly on the IJG's original jidctfst.c; see the jidctfst.c
+; for more details.
+;
+; [TAB8]
+
+%include "simd/jsimdext.inc"
+%include "simd/jdct.inc"
+
+; --------------------------------------------------------------------------
+
+%define CONST_BITS 8 ; 14 is also OK.
+%define PASS1_BITS 2
+
+%if IFAST_SCALE_BITS != PASS1_BITS
+%error "'IFAST_SCALE_BITS' must be equal to 'PASS1_BITS'."
+%endif
+
+%if CONST_BITS == 8
+F_1_082 equ 277 ; FIX(1.082392200)
+F_1_414 equ 362 ; FIX(1.414213562)
+F_1_847 equ 473 ; FIX(1.847759065)
+F_2_613 equ 669 ; FIX(2.613125930)
+F_1_613 equ (F_2_613 - 256) ; FIX(2.613125930) - FIX(1)
+%else
+; NASM cannot do compile-time arithmetic on floating-point constants.
+%define DESCALE(x,n) (((x)+(1<<((n)-1)))>>(n))
+F_1_082 equ DESCALE(1162209775,30-CONST_BITS) ; FIX(1.082392200)
+F_1_414 equ DESCALE(1518500249,30-CONST_BITS) ; FIX(1.414213562)
+F_1_847 equ DESCALE(1984016188,30-CONST_BITS) ; FIX(1.847759065)
+F_2_613 equ DESCALE(2805822602,30-CONST_BITS) ; FIX(2.613125930)
+F_1_613 equ (F_2_613 - (1 << CONST_BITS)) ; FIX(2.613125930) - FIX(1)
+%endif
+
+; --------------------------------------------------------------------------
+ SECTION SEG_CONST
+
+; PRE_MULTIPLY_SCALE_BITS <= 2 (to avoid overflow)
+; CONST_BITS + CONST_SHIFT + PRE_MULTIPLY_SCALE_BITS == 16 (for pmulhw)
+
+%define PRE_MULTIPLY_SCALE_BITS 2
+%define CONST_SHIFT (16 - PRE_MULTIPLY_SCALE_BITS - CONST_BITS)
+
+ alignz 16
+ global EXTN(jconst_idct_ifast_sse2)
+
+EXTN(jconst_idct_ifast_sse2):
+
+PW_F1414 times 8 dw F_1_414 << CONST_SHIFT
+PW_F1847 times 8 dw F_1_847 << CONST_SHIFT
+PW_MF1613 times 8 dw -F_1_613 << CONST_SHIFT
+PW_F1082 times 8 dw F_1_082 << CONST_SHIFT
+PB_CENTERJSAMP times 16 db CENTERJSAMPLE
+
+ alignz 16
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Perform dequantization and inverse DCT on one block of coefficients.
+;
+; GLOBAL(void)
+; jsimd_idct_ifast_sse2 (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_XMMWORD ; xmmword wk[WK_NUM]
+%define WK_NUM 2
+
+ align 16
+ global EXTN(jsimd_idct_ifast_sse2)
+
+EXTN(jsimd_idct_ifast_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, [wk(0)]
+ pushpic ebx
+; push ecx ; unused
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ get_GOT ebx ; get GOT address
+
+ ; ---- Pass 1: process columns from input.
+
+; mov eax, [original_ebp]
+ mov edx, POINTER [dct_table(eax)] ; quantptr
+ mov esi, JCOEFPTR [coef_block(eax)] ; inptr
+
+%ifndef NO_ZERO_COLUMN_TEST_IFAST_SSE2
+ mov eax, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ or eax, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)]
+ jnz near .columnDCT
+
+ movdqa xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)]
+ por xmm0, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
+ por xmm1, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_JCOEF)]
+ por xmm0, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
+ por xmm1, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)]
+ por xmm0, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
+ por xmm1,xmm0
+ packsswb xmm1,xmm1
+ packsswb xmm1,xmm1
+ movd eax,xmm1
+ test eax,eax
+ jnz short .columnDCT
+
+ ; -- AC terms all zero
+
+ movdqa xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+
+ movdqa xmm7,xmm0 ; xmm0=in0=(00 01 02 03 04 05 06 07)
+ punpcklwd xmm0,xmm0 ; xmm0=(00 00 01 01 02 02 03 03)
+ punpckhwd xmm7,xmm7 ; xmm7=(04 04 05 05 06 06 07 07)
+
+ pshufd xmm6,xmm0,0x00 ; xmm6=col0=(00 00 00 00 00 00 00 00)
+ pshufd xmm2,xmm0,0x55 ; xmm2=col1=(01 01 01 01 01 01 01 01)
+ pshufd xmm5,xmm0,0xAA ; xmm5=col2=(02 02 02 02 02 02 02 02)
+ pshufd xmm0,xmm0,0xFF ; xmm0=col3=(03 03 03 03 03 03 03 03)
+ pshufd xmm1,xmm7,0x00 ; xmm1=col4=(04 04 04 04 04 04 04 04)
+ pshufd xmm4,xmm7,0x55 ; xmm4=col5=(05 05 05 05 05 05 05 05)
+ pshufd xmm3,xmm7,0xAA ; xmm3=col6=(06 06 06 06 06 06 06 06)
+ pshufd xmm7,xmm7,0xFF ; xmm7=col7=(07 07 07 07 07 07 07 07)
+
+ movdqa XMMWORD [wk(0)], xmm2 ; wk(0)=col1
+ movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=col3
+ jmp near .column_end
+ alignx 16,7
+%endif
+.columnDCT:
+
+ ; -- Even part
+
+ movdqa xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+ pmullw xmm1, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+ movdqa xmm2, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm3, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm2, XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+ pmullw xmm3, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+
+ movdqa xmm4,xmm0
+ movdqa xmm5,xmm1
+ psubw xmm0,xmm2 ; xmm0=tmp11
+ psubw xmm1,xmm3
+ paddw xmm4,xmm2 ; xmm4=tmp10
+ paddw xmm5,xmm3 ; xmm5=tmp13
+
+ psllw xmm1,PRE_MULTIPLY_SCALE_BITS
+ pmulhw xmm1,[GOTOFF(ebx,PW_F1414)]
+ psubw xmm1,xmm5 ; xmm1=tmp12
+
+ movdqa xmm6,xmm4
+ movdqa xmm7,xmm0
+ psubw xmm4,xmm5 ; xmm4=tmp3
+ psubw xmm0,xmm1 ; xmm0=tmp2
+ paddw xmm6,xmm5 ; xmm6=tmp0
+ paddw xmm7,xmm1 ; xmm7=tmp1
+
+ movdqa XMMWORD [wk(1)], xmm4 ; wk(1)=tmp3
+ movdqa XMMWORD [wk(0)], xmm0 ; wk(0)=tmp2
+
+ ; -- Odd part
+
+ movdqa xmm2, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm3, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm2, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+ pmullw xmm3, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+ movdqa xmm5, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm5, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+ pmullw xmm1, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_IFAST_MULT_TYPE)]
+
+ movdqa xmm4,xmm2
+ movdqa xmm0,xmm5
+ psubw xmm2,xmm1 ; xmm2=z12
+ psubw xmm5,xmm3 ; xmm5=z10
+ paddw xmm4,xmm1 ; xmm4=z11
+ paddw xmm0,xmm3 ; xmm0=z13
+
+ movdqa xmm1,xmm5 ; xmm1=z10(unscaled)
+ psllw xmm2,PRE_MULTIPLY_SCALE_BITS
+ psllw xmm5,PRE_MULTIPLY_SCALE_BITS
+
+ movdqa xmm3,xmm4
+ psubw xmm4,xmm0
+ paddw xmm3,xmm0 ; xmm3=tmp7
+
+ psllw xmm4,PRE_MULTIPLY_SCALE_BITS
+ pmulhw xmm4,[GOTOFF(ebx,PW_F1414)] ; xmm4=tmp11
+
+ ; To avoid overflow...
+ ;
+ ; (Original)
+ ; tmp12 = -2.613125930 * z10 + z5;
+ ;
+ ; (This implementation)
+ ; tmp12 = (-1.613125930 - 1) * z10 + z5;
+ ; = -1.613125930 * z10 - z10 + z5;
+
+ movdqa xmm0,xmm5
+ paddw xmm5,xmm2
+ pmulhw xmm5,[GOTOFF(ebx,PW_F1847)] ; xmm5=z5
+ pmulhw xmm0,[GOTOFF(ebx,PW_MF1613)]
+ pmulhw xmm2,[GOTOFF(ebx,PW_F1082)]
+ psubw xmm0,xmm1
+ psubw xmm2,xmm5 ; xmm2=tmp10
+ paddw xmm0,xmm5 ; xmm0=tmp12
+
+ ; -- Final output stage
+
+ psubw xmm0,xmm3 ; xmm0=tmp6
+ movdqa xmm1,xmm6
+ movdqa xmm5,xmm7
+ paddw xmm6,xmm3 ; xmm6=data0=(00 01 02 03 04 05 06 07)
+ paddw xmm7,xmm0 ; xmm7=data1=(10 11 12 13 14 15 16 17)
+ psubw xmm1,xmm3 ; xmm1=data7=(70 71 72 73 74 75 76 77)
+ psubw xmm5,xmm0 ; xmm5=data6=(60 61 62 63 64 65 66 67)
+ psubw xmm4,xmm0 ; xmm4=tmp5
+
+ movdqa xmm3,xmm6 ; transpose coefficients(phase 1)
+ punpcklwd xmm6,xmm7 ; xmm6=(00 10 01 11 02 12 03 13)
+ punpckhwd xmm3,xmm7 ; xmm3=(04 14 05 15 06 16 07 17)
+ movdqa xmm0,xmm5 ; transpose coefficients(phase 1)
+ punpcklwd xmm5,xmm1 ; xmm5=(60 70 61 71 62 72 63 73)
+ punpckhwd xmm0,xmm1 ; xmm0=(64 74 65 75 66 76 67 77)
+
+ movdqa xmm7, XMMWORD [wk(0)] ; xmm7=tmp2
+ movdqa xmm1, XMMWORD [wk(1)] ; xmm1=tmp3
+
+ movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=(60 70 61 71 62 72 63 73)
+ movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=(64 74 65 75 66 76 67 77)
+
+ paddw xmm2,xmm4 ; xmm2=tmp4
+ movdqa xmm5,xmm7
+ movdqa xmm0,xmm1
+ paddw xmm7,xmm4 ; xmm7=data2=(20 21 22 23 24 25 26 27)
+ paddw xmm1,xmm2 ; xmm1=data4=(40 41 42 43 44 45 46 47)
+ psubw xmm5,xmm4 ; xmm5=data5=(50 51 52 53 54 55 56 57)
+ psubw xmm0,xmm2 ; xmm0=data3=(30 31 32 33 34 35 36 37)
+
+ movdqa xmm4,xmm7 ; transpose coefficients(phase 1)
+ punpcklwd xmm7,xmm0 ; xmm7=(20 30 21 31 22 32 23 33)
+ punpckhwd xmm4,xmm0 ; xmm4=(24 34 25 35 26 36 27 37)
+ movdqa xmm2,xmm1 ; transpose coefficients(phase 1)
+ punpcklwd xmm1,xmm5 ; xmm1=(40 50 41 51 42 52 43 53)
+ punpckhwd xmm2,xmm5 ; xmm2=(44 54 45 55 46 56 47 57)
+
+ movdqa xmm0,xmm3 ; transpose coefficients(phase 2)
+ punpckldq xmm3,xmm4 ; xmm3=(04 14 24 34 05 15 25 35)
+ punpckhdq xmm0,xmm4 ; xmm0=(06 16 26 36 07 17 27 37)
+ movdqa xmm5,xmm6 ; transpose coefficients(phase 2)
+ punpckldq xmm6,xmm7 ; xmm6=(00 10 20 30 01 11 21 31)
+ punpckhdq xmm5,xmm7 ; xmm5=(02 12 22 32 03 13 23 33)
+
+ movdqa xmm4, XMMWORD [wk(0)] ; xmm4=(60 70 61 71 62 72 63 73)
+ movdqa xmm7, XMMWORD [wk(1)] ; xmm7=(64 74 65 75 66 76 67 77)
+
+ movdqa XMMWORD [wk(0)], xmm3 ; wk(0)=(04 14 24 34 05 15 25 35)
+ movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=(06 16 26 36 07 17 27 37)
+
+ movdqa xmm3,xmm1 ; transpose coefficients(phase 2)
+ punpckldq xmm1,xmm4 ; xmm1=(40 50 60 70 41 51 61 71)
+ punpckhdq xmm3,xmm4 ; xmm3=(42 52 62 72 43 53 63 73)
+ movdqa xmm0,xmm2 ; transpose coefficients(phase 2)
+ punpckldq xmm2,xmm7 ; xmm2=(44 54 64 74 45 55 65 75)
+ punpckhdq xmm0,xmm7 ; xmm0=(46 56 66 76 47 57 67 77)
+
+ movdqa xmm4,xmm6 ; transpose coefficients(phase 3)
+ punpcklqdq xmm6,xmm1 ; xmm6=col0=(00 10 20 30 40 50 60 70)
+ punpckhqdq xmm4,xmm1 ; xmm4=col1=(01 11 21 31 41 51 61 71)
+ movdqa xmm7,xmm5 ; transpose coefficients(phase 3)
+ punpcklqdq xmm5,xmm3 ; xmm5=col2=(02 12 22 32 42 52 62 72)
+ punpckhqdq xmm7,xmm3 ; xmm7=col3=(03 13 23 33 43 53 63 73)
+
+ movdqa xmm1, XMMWORD [wk(0)] ; xmm1=(04 14 24 34 05 15 25 35)
+ movdqa xmm3, XMMWORD [wk(1)] ; xmm3=(06 16 26 36 07 17 27 37)
+
+ movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=col1
+ movdqa XMMWORD [wk(1)], xmm7 ; wk(1)=col3
+
+ movdqa xmm4,xmm1 ; transpose coefficients(phase 3)
+ punpcklqdq xmm1,xmm2 ; xmm1=col4=(04 14 24 34 44 54 64 74)
+ punpckhqdq xmm4,xmm2 ; xmm4=col5=(05 15 25 35 45 55 65 75)
+ movdqa xmm7,xmm3 ; transpose coefficients(phase 3)
+ punpcklqdq xmm3,xmm0 ; xmm3=col6=(06 16 26 36 46 56 66 76)
+ punpckhqdq xmm7,xmm0 ; xmm7=col7=(07 17 27 37 47 57 67 77)
+.column_end:
+
+ ; -- Prefetch the next coefficient block
+
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 0*32]
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 1*32]
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 2*32]
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 3*32]
+
+ ; ---- Pass 2: process rows from work array, store into output array.
+
+ mov eax, [original_ebp]
+ mov edi, JSAMPARRAY [output_buf(eax)] ; (JSAMPROW *)
+ mov eax, JDIMENSION [output_col(eax)]
+
+ ; -- Even part
+
+ ; xmm6=col0, xmm5=col2, xmm1=col4, xmm3=col6
+
+ movdqa xmm2,xmm6
+ movdqa xmm0,xmm5
+ psubw xmm6,xmm1 ; xmm6=tmp11
+ psubw xmm5,xmm3
+ paddw xmm2,xmm1 ; xmm2=tmp10
+ paddw xmm0,xmm3 ; xmm0=tmp13
+
+ psllw xmm5,PRE_MULTIPLY_SCALE_BITS
+ pmulhw xmm5,[GOTOFF(ebx,PW_F1414)]
+ psubw xmm5,xmm0 ; xmm5=tmp12
+
+ movdqa xmm1,xmm2
+ movdqa xmm3,xmm6
+ psubw xmm2,xmm0 ; xmm2=tmp3
+ psubw xmm6,xmm5 ; xmm6=tmp2
+ paddw xmm1,xmm0 ; xmm1=tmp0
+ paddw xmm3,xmm5 ; xmm3=tmp1
+
+ movdqa xmm0, XMMWORD [wk(0)] ; xmm0=col1
+ movdqa xmm5, XMMWORD [wk(1)] ; xmm5=col3
+
+ movdqa XMMWORD [wk(0)], xmm2 ; wk(0)=tmp3
+ movdqa XMMWORD [wk(1)], xmm6 ; wk(1)=tmp2
+
+ ; -- Odd part
+
+ ; xmm0=col1, xmm5=col3, xmm4=col5, xmm7=col7
+
+ movdqa xmm2,xmm0
+ movdqa xmm6,xmm4
+ psubw xmm0,xmm7 ; xmm0=z12
+ psubw xmm4,xmm5 ; xmm4=z10
+ paddw xmm2,xmm7 ; xmm2=z11
+ paddw xmm6,xmm5 ; xmm6=z13
+
+ movdqa xmm7,xmm4 ; xmm7=z10(unscaled)
+ psllw xmm0,PRE_MULTIPLY_SCALE_BITS
+ psllw xmm4,PRE_MULTIPLY_SCALE_BITS
+
+ movdqa xmm5,xmm2
+ psubw xmm2,xmm6
+ paddw xmm5,xmm6 ; xmm5=tmp7
+
+ psllw xmm2,PRE_MULTIPLY_SCALE_BITS
+ pmulhw xmm2,[GOTOFF(ebx,PW_F1414)] ; xmm2=tmp11
+
+ ; To avoid overflow...
+ ;
+ ; (Original)
+ ; tmp12 = -2.613125930 * z10 + z5;
+ ;
+ ; (This implementation)
+ ; tmp12 = (-1.613125930 - 1) * z10 + z5;
+ ; = -1.613125930 * z10 - z10 + z5;
+
+ movdqa xmm6,xmm4
+ paddw xmm4,xmm0
+ pmulhw xmm4,[GOTOFF(ebx,PW_F1847)] ; xmm4=z5
+ pmulhw xmm6,[GOTOFF(ebx,PW_MF1613)]
+ pmulhw xmm0,[GOTOFF(ebx,PW_F1082)]
+ psubw xmm6,xmm7
+ psubw xmm0,xmm4 ; xmm0=tmp10
+ paddw xmm6,xmm4 ; xmm6=tmp12
+
+ ; -- Final output stage
+
+ psubw xmm6,xmm5 ; xmm6=tmp6
+ movdqa xmm7,xmm1
+ movdqa xmm4,xmm3
+ paddw xmm1,xmm5 ; xmm1=data0=(00 10 20 30 40 50 60 70)
+ paddw xmm3,xmm6 ; xmm3=data1=(01 11 21 31 41 51 61 71)
+ psraw xmm1,(PASS1_BITS+3) ; descale
+ psraw xmm3,(PASS1_BITS+3) ; descale
+ psubw xmm7,xmm5 ; xmm7=data7=(07 17 27 37 47 57 67 77)
+ psubw xmm4,xmm6 ; xmm4=data6=(06 16 26 36 46 56 66 76)
+ psraw xmm7,(PASS1_BITS+3) ; descale
+ psraw xmm4,(PASS1_BITS+3) ; descale
+ psubw xmm2,xmm6 ; xmm2=tmp5
+
+ packsswb xmm1,xmm4 ; xmm1=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
+ packsswb xmm3,xmm7 ; xmm3=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
+
+ movdqa xmm5, XMMWORD [wk(1)] ; xmm5=tmp2
+ movdqa xmm6, XMMWORD [wk(0)] ; xmm6=tmp3
+
+ paddw xmm0,xmm2 ; xmm0=tmp4
+ movdqa xmm4,xmm5
+ movdqa xmm7,xmm6
+ paddw xmm5,xmm2 ; xmm5=data2=(02 12 22 32 42 52 62 72)
+ paddw xmm6,xmm0 ; xmm6=data4=(04 14 24 34 44 54 64 74)
+ psraw xmm5,(PASS1_BITS+3) ; descale
+ psraw xmm6,(PASS1_BITS+3) ; descale
+ psubw xmm4,xmm2 ; xmm4=data5=(05 15 25 35 45 55 65 75)
+ psubw xmm7,xmm0 ; xmm7=data3=(03 13 23 33 43 53 63 73)
+ psraw xmm4,(PASS1_BITS+3) ; descale
+ psraw xmm7,(PASS1_BITS+3) ; descale
+
+ movdqa xmm2,[GOTOFF(ebx,PB_CENTERJSAMP)] ; xmm2=[PB_CENTERJSAMP]
+
+ packsswb xmm5,xmm6 ; xmm5=(02 12 22 32 42 52 62 72 04 14 24 34 44 54 64 74)
+ packsswb xmm7,xmm4 ; xmm7=(03 13 23 33 43 53 63 73 05 15 25 35 45 55 65 75)
+
+ paddb xmm1,xmm2
+ paddb xmm3,xmm2
+ paddb xmm5,xmm2
+ paddb xmm7,xmm2
+
+ movdqa xmm0,xmm1 ; transpose coefficients(phase 1)
+ punpcklbw xmm1,xmm3 ; xmm1=(00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71)
+ punpckhbw xmm0,xmm3 ; xmm0=(06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77)
+ movdqa xmm6,xmm5 ; transpose coefficients(phase 1)
+ punpcklbw xmm5,xmm7 ; xmm5=(02 03 12 13 22 23 32 33 42 43 52 53 62 63 72 73)
+ punpckhbw xmm6,xmm7 ; xmm6=(04 05 14 15 24 25 34 35 44 45 54 55 64 65 74 75)
+
+ movdqa xmm4,xmm1 ; transpose coefficients(phase 2)
+ punpcklwd xmm1,xmm5 ; xmm1=(00 01 02 03 10 11 12 13 20 21 22 23 30 31 32 33)
+ punpckhwd xmm4,xmm5 ; xmm4=(40 41 42 43 50 51 52 53 60 61 62 63 70 71 72 73)
+ movdqa xmm2,xmm6 ; transpose coefficients(phase 2)
+ punpcklwd xmm6,xmm0 ; xmm6=(04 05 06 07 14 15 16 17 24 25 26 27 34 35 36 37)
+ punpckhwd xmm2,xmm0 ; xmm2=(44 45 46 47 54 55 56 57 64 65 66 67 74 75 76 77)
+
+ movdqa xmm3,xmm1 ; transpose coefficients(phase 3)
+ punpckldq xmm1,xmm6 ; xmm1=(00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17)
+ punpckhdq xmm3,xmm6 ; xmm3=(20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37)
+ movdqa xmm7,xmm4 ; transpose coefficients(phase 3)
+ punpckldq xmm4,xmm2 ; xmm4=(40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57)
+ punpckhdq xmm7,xmm2 ; xmm7=(60 61 62 63 64 65 66 67 70 71 72 73 74 75 76 77)
+
+ pshufd xmm5,xmm1,0x4E ; xmm5=(10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07)
+ pshufd xmm0,xmm3,0x4E ; xmm0=(30 31 32 33 34 35 36 37 20 21 22 23 24 25 26 27)
+ pshufd xmm6,xmm4,0x4E ; xmm6=(50 51 52 53 54 55 56 57 40 41 42 43 44 45 46 47)
+ pshufd xmm2,xmm7,0x4E ; xmm2=(70 71 72 73 74 75 76 77 60 61 62 63 64 65 66 67)
+
+ mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW]
+ mov esi, JSAMPROW [edi+2*SIZEOF_JSAMPROW]
+ movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm1
+ movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm3
+ mov edx, JSAMPROW [edi+4*SIZEOF_JSAMPROW]
+ mov esi, JSAMPROW [edi+6*SIZEOF_JSAMPROW]
+ movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm4
+ movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm7
+
+ mov edx, JSAMPROW [edi+1*SIZEOF_JSAMPROW]
+ mov esi, JSAMPROW [edi+3*SIZEOF_JSAMPROW]
+ movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm5
+ movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm0
+ mov edx, JSAMPROW [edi+5*SIZEOF_JSAMPROW]
+ mov esi, JSAMPROW [edi+7*SIZEOF_JSAMPROW]
+ movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm6
+ movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm2
+
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; unused
+ poppic ebx
+ mov esp,ebp ; esp <- aligned ebp
+ pop esp ; esp <- original ebp
+ pop ebp
+ ret
+
--- /dev/null
+;
+; jiss2int.asm - accurate integer IDCT (SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; Based on
+; 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 slow-but-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.
+;
+; [TAB8]
+
+%include "simd/jsimdext.inc"
+%include "simd/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 16
+ global EXTN(jconst_idct_islow_sse2)
+
+EXTN(jconst_idct_islow_sse2):
+
+PW_F130_F054 times 4 dw (F_0_541+F_0_765), F_0_541
+PW_F054_MF130 times 4 dw F_0_541, (F_0_541-F_1_847)
+PW_MF078_F117 times 4 dw (F_1_175-F_1_961), F_1_175
+PW_F117_F078 times 4 dw F_1_175, (F_1_175-F_0_390)
+PW_MF060_MF089 times 4 dw (F_0_298-F_0_899),-F_0_899
+PW_MF089_F060 times 4 dw -F_0_899, (F_1_501-F_0_899)
+PW_MF050_MF256 times 4 dw (F_2_053-F_2_562),-F_2_562
+PW_MF256_F050 times 4 dw -F_2_562, (F_3_072-F_2_562)
+PD_DESCALE_P1 times 4 dd 1 << (DESCALE_P1-1)
+PD_DESCALE_P2 times 4 dd 1 << (DESCALE_P2-1)
+PB_CENTERJSAMP times 16 db CENTERJSAMPLE
+
+ alignz 16
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Perform dequantization and inverse DCT on one block of coefficients.
+;
+; GLOBAL(void)
+; jsimd_idct_islow_sse2 (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_XMMWORD ; xmmword wk[WK_NUM]
+%define WK_NUM 12
+
+ align 16
+ global EXTN(jsimd_idct_islow_sse2)
+
+EXTN(jsimd_idct_islow_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, [wk(0)]
+ pushpic ebx
+; push ecx ; unused
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ get_GOT ebx ; get GOT address
+
+ ; ---- Pass 1: process columns from input.
+
+; mov eax, [original_ebp]
+ mov edx, POINTER [dct_table(eax)] ; quantptr
+ mov esi, JCOEFPTR [coef_block(eax)] ; inptr
+
+%ifndef NO_ZERO_COLUMN_TEST_ISLOW_SSE2
+ mov eax, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ or eax, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)]
+ jnz near .columnDCT
+
+ movdqa xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)]
+ por xmm0, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
+ por xmm1, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_JCOEF)]
+ por xmm0, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
+ por xmm1, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)]
+ por xmm0, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
+ por xmm1,xmm0
+ packsswb xmm1,xmm1
+ packsswb xmm1,xmm1
+ movd eax,xmm1
+ test eax,eax
+ jnz short .columnDCT
+
+ ; -- AC terms all zero
+
+ movdqa xmm5, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm5, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+
+ psllw xmm5,PASS1_BITS
+
+ movdqa xmm4,xmm5 ; xmm5=in0=(00 01 02 03 04 05 06 07)
+ punpcklwd xmm5,xmm5 ; xmm5=(00 00 01 01 02 02 03 03)
+ punpckhwd xmm4,xmm4 ; xmm4=(04 04 05 05 06 06 07 07)
+
+ pshufd xmm7,xmm5,0x00 ; xmm7=col0=(00 00 00 00 00 00 00 00)
+ pshufd xmm6,xmm5,0x55 ; xmm6=col1=(01 01 01 01 01 01 01 01)
+ pshufd xmm1,xmm5,0xAA ; xmm1=col2=(02 02 02 02 02 02 02 02)
+ pshufd xmm5,xmm5,0xFF ; xmm5=col3=(03 03 03 03 03 03 03 03)
+ pshufd xmm0,xmm4,0x00 ; xmm0=col4=(04 04 04 04 04 04 04 04)
+ pshufd xmm3,xmm4,0x55 ; xmm3=col5=(05 05 05 05 05 05 05 05)
+ pshufd xmm2,xmm4,0xAA ; xmm2=col6=(06 06 06 06 06 06 06 06)
+ pshufd xmm4,xmm4,0xFF ; xmm4=col7=(07 07 07 07 07 07 07 07)
+
+ movdqa XMMWORD [wk(8)], xmm6 ; wk(8)=col1
+ movdqa XMMWORD [wk(9)], xmm5 ; wk(9)=col3
+ movdqa XMMWORD [wk(10)], xmm3 ; wk(10)=col5
+ movdqa XMMWORD [wk(11)], xmm4 ; wk(11)=col7
+ jmp near .column_end
+ alignx 16,7
+%endif
+.columnDCT:
+
+ ; -- Even part
+
+ movdqa xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ pmullw xmm1, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ movdqa xmm2, XMMWORD [XMMBLOCK(4,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm3, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm2, XMMWORD [XMMBLOCK(4,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ pmullw xmm3, XMMWORD [XMMBLOCK(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;
+
+ movdqa xmm4,xmm1 ; xmm1=in2=z2
+ movdqa xmm5,xmm1
+ punpcklwd xmm4,xmm3 ; xmm3=in6=z3
+ punpckhwd xmm5,xmm3
+ movdqa xmm1,xmm4
+ movdqa xmm3,xmm5
+ pmaddwd xmm4,[GOTOFF(ebx,PW_F130_F054)] ; xmm4=tmp3L
+ pmaddwd xmm5,[GOTOFF(ebx,PW_F130_F054)] ; xmm5=tmp3H
+ pmaddwd xmm1,[GOTOFF(ebx,PW_F054_MF130)] ; xmm1=tmp2L
+ pmaddwd xmm3,[GOTOFF(ebx,PW_F054_MF130)] ; xmm3=tmp2H
+
+ movdqa xmm6,xmm0
+ paddw xmm0,xmm2 ; xmm0=in0+in4
+ psubw xmm6,xmm2 ; xmm6=in0-in4
+
+ pxor xmm7,xmm7
+ pxor xmm2,xmm2
+ punpcklwd xmm7,xmm0 ; xmm7=tmp0L
+ punpckhwd xmm2,xmm0 ; xmm2=tmp0H
+ psrad xmm7,(16-CONST_BITS) ; psrad xmm7,16 & pslld xmm7,CONST_BITS
+ psrad xmm2,(16-CONST_BITS) ; psrad xmm2,16 & pslld xmm2,CONST_BITS
+
+ movdqa xmm0,xmm7
+ paddd xmm7,xmm4 ; xmm7=tmp10L
+ psubd xmm0,xmm4 ; xmm0=tmp13L
+ movdqa xmm4,xmm2
+ paddd xmm2,xmm5 ; xmm2=tmp10H
+ psubd xmm4,xmm5 ; xmm4=tmp13H
+
+ movdqa XMMWORD [wk(0)], xmm7 ; wk(0)=tmp10L
+ movdqa XMMWORD [wk(1)], xmm2 ; wk(1)=tmp10H
+ movdqa XMMWORD [wk(2)], xmm0 ; wk(2)=tmp13L
+ movdqa XMMWORD [wk(3)], xmm4 ; wk(3)=tmp13H
+
+ pxor xmm5,xmm5
+ pxor xmm7,xmm7
+ punpcklwd xmm5,xmm6 ; xmm5=tmp1L
+ punpckhwd xmm7,xmm6 ; xmm7=tmp1H
+ psrad xmm5,(16-CONST_BITS) ; psrad xmm5,16 & pslld xmm5,CONST_BITS
+ psrad xmm7,(16-CONST_BITS) ; psrad xmm7,16 & pslld xmm7,CONST_BITS
+
+ movdqa xmm2,xmm5
+ paddd xmm5,xmm1 ; xmm5=tmp11L
+ psubd xmm2,xmm1 ; xmm2=tmp12L
+ movdqa xmm0,xmm7
+ paddd xmm7,xmm3 ; xmm7=tmp11H
+ psubd xmm0,xmm3 ; xmm0=tmp12H
+
+ movdqa XMMWORD [wk(4)], xmm5 ; wk(4)=tmp11L
+ movdqa XMMWORD [wk(5)], xmm7 ; wk(5)=tmp11H
+ movdqa XMMWORD [wk(6)], xmm2 ; wk(6)=tmp12L
+ movdqa XMMWORD [wk(7)], xmm0 ; wk(7)=tmp12H
+
+ ; -- Odd part
+
+ movdqa xmm4, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm6, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm4, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ pmullw xmm6, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm3, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm1, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ pmullw xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+
+ movdqa xmm5,xmm6
+ movdqa xmm7,xmm4
+ paddw xmm5,xmm3 ; xmm5=z3
+ paddw xmm7,xmm1 ; xmm7=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);
+
+ movdqa xmm2,xmm5
+ movdqa xmm0,xmm5
+ punpcklwd xmm2,xmm7
+ punpckhwd xmm0,xmm7
+ movdqa xmm5,xmm2
+ movdqa xmm7,xmm0
+ pmaddwd xmm2,[GOTOFF(ebx,PW_MF078_F117)] ; xmm2=z3L
+ pmaddwd xmm0,[GOTOFF(ebx,PW_MF078_F117)] ; xmm0=z3H
+ pmaddwd xmm5,[GOTOFF(ebx,PW_F117_F078)] ; xmm5=z4L
+ pmaddwd xmm7,[GOTOFF(ebx,PW_F117_F078)] ; xmm7=z4H
+
+ movdqa XMMWORD [wk(10)], xmm2 ; wk(10)=z3L
+ movdqa XMMWORD [wk(11)], xmm0 ; 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;
+
+ movdqa xmm2,xmm3
+ movdqa xmm0,xmm3
+ punpcklwd xmm2,xmm4
+ punpckhwd xmm0,xmm4
+ movdqa xmm3,xmm2
+ movdqa xmm4,xmm0
+ pmaddwd xmm2,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm2=tmp0L
+ pmaddwd xmm0,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm0=tmp0H
+ pmaddwd xmm3,[GOTOFF(ebx,PW_MF089_F060)] ; xmm3=tmp3L
+ pmaddwd xmm4,[GOTOFF(ebx,PW_MF089_F060)] ; xmm4=tmp3H
+
+ paddd xmm2, XMMWORD [wk(10)] ; xmm2=tmp0L
+ paddd xmm0, XMMWORD [wk(11)] ; xmm0=tmp0H
+ paddd xmm3,xmm5 ; xmm3=tmp3L
+ paddd xmm4,xmm7 ; xmm4=tmp3H
+
+ movdqa XMMWORD [wk(8)], xmm2 ; wk(8)=tmp0L
+ movdqa XMMWORD [wk(9)], xmm0 ; wk(9)=tmp0H
+
+ movdqa xmm2,xmm1
+ movdqa xmm0,xmm1
+ punpcklwd xmm2,xmm6
+ punpckhwd xmm0,xmm6
+ movdqa xmm1,xmm2
+ movdqa xmm6,xmm0
+ pmaddwd xmm2,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm2=tmp1L
+ pmaddwd xmm0,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm0=tmp1H
+ pmaddwd xmm1,[GOTOFF(ebx,PW_MF256_F050)] ; xmm1=tmp2L
+ pmaddwd xmm6,[GOTOFF(ebx,PW_MF256_F050)] ; xmm6=tmp2H
+
+ paddd xmm2,xmm5 ; xmm2=tmp1L
+ paddd xmm0,xmm7 ; xmm0=tmp1H
+ paddd xmm1, XMMWORD [wk(10)] ; xmm1=tmp2L
+ paddd xmm6, XMMWORD [wk(11)] ; xmm6=tmp2H
+
+ movdqa XMMWORD [wk(10)], xmm2 ; wk(10)=tmp1L
+ movdqa XMMWORD [wk(11)], xmm0 ; wk(11)=tmp1H
+
+ ; -- Final output stage
+
+ movdqa xmm5, XMMWORD [wk(0)] ; xmm5=tmp10L
+ movdqa xmm7, XMMWORD [wk(1)] ; xmm7=tmp10H
+
+ movdqa xmm2,xmm5
+ movdqa xmm0,xmm7
+ paddd xmm5,xmm3 ; xmm5=data0L
+ paddd xmm7,xmm4 ; xmm7=data0H
+ psubd xmm2,xmm3 ; xmm2=data7L
+ psubd xmm0,xmm4 ; xmm0=data7H
+
+ movdqa xmm3,[GOTOFF(ebx,PD_DESCALE_P1)] ; xmm3=[PD_DESCALE_P1]
+
+ paddd xmm5,xmm3
+ paddd xmm7,xmm3
+ psrad xmm5,DESCALE_P1
+ psrad xmm7,DESCALE_P1
+ paddd xmm2,xmm3
+ paddd xmm0,xmm3
+ psrad xmm2,DESCALE_P1
+ psrad xmm0,DESCALE_P1
+
+ packssdw xmm5,xmm7 ; xmm5=data0=(00 01 02 03 04 05 06 07)
+ packssdw xmm2,xmm0 ; xmm2=data7=(70 71 72 73 74 75 76 77)
+
+ movdqa xmm4, XMMWORD [wk(4)] ; xmm4=tmp11L
+ movdqa xmm3, XMMWORD [wk(5)] ; xmm3=tmp11H
+
+ movdqa xmm7,xmm4
+ movdqa xmm0,xmm3
+ paddd xmm4,xmm1 ; xmm4=data1L
+ paddd xmm3,xmm6 ; xmm3=data1H
+ psubd xmm7,xmm1 ; xmm7=data6L
+ psubd xmm0,xmm6 ; xmm0=data6H
+
+ movdqa xmm1,[GOTOFF(ebx,PD_DESCALE_P1)] ; xmm1=[PD_DESCALE_P1]
+
+ paddd xmm4,xmm1
+ paddd xmm3,xmm1
+ psrad xmm4,DESCALE_P1
+ psrad xmm3,DESCALE_P1
+ paddd xmm7,xmm1
+ paddd xmm0,xmm1
+ psrad xmm7,DESCALE_P1
+ psrad xmm0,DESCALE_P1
+
+ packssdw xmm4,xmm3 ; xmm4=data1=(10 11 12 13 14 15 16 17)
+ packssdw xmm7,xmm0 ; xmm7=data6=(60 61 62 63 64 65 66 67)
+
+ movdqa xmm6,xmm5 ; transpose coefficients(phase 1)
+ punpcklwd xmm5,xmm4 ; xmm5=(00 10 01 11 02 12 03 13)
+ punpckhwd xmm6,xmm4 ; xmm6=(04 14 05 15 06 16 07 17)
+ movdqa xmm1,xmm7 ; transpose coefficients(phase 1)
+ punpcklwd xmm7,xmm2 ; xmm7=(60 70 61 71 62 72 63 73)
+ punpckhwd xmm1,xmm2 ; xmm1=(64 74 65 75 66 76 67 77)
+
+ movdqa xmm3, XMMWORD [wk(6)] ; xmm3=tmp12L
+ movdqa xmm0, XMMWORD [wk(7)] ; xmm0=tmp12H
+ movdqa xmm4, XMMWORD [wk(10)] ; xmm4=tmp1L
+ movdqa xmm2, XMMWORD [wk(11)] ; xmm2=tmp1H
+
+ movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=(00 10 01 11 02 12 03 13)
+ movdqa XMMWORD [wk(1)], xmm6 ; wk(1)=(04 14 05 15 06 16 07 17)
+ movdqa XMMWORD [wk(4)], xmm7 ; wk(4)=(60 70 61 71 62 72 63 73)
+ movdqa XMMWORD [wk(5)], xmm1 ; wk(5)=(64 74 65 75 66 76 67 77)
+
+ movdqa xmm5,xmm3
+ movdqa xmm6,xmm0
+ paddd xmm3,xmm4 ; xmm3=data2L
+ paddd xmm0,xmm2 ; xmm0=data2H
+ psubd xmm5,xmm4 ; xmm5=data5L
+ psubd xmm6,xmm2 ; xmm6=data5H
+
+ movdqa xmm7,[GOTOFF(ebx,PD_DESCALE_P1)] ; xmm7=[PD_DESCALE_P1]
+
+ paddd xmm3,xmm7
+ paddd xmm0,xmm7
+ psrad xmm3,DESCALE_P1
+ psrad xmm0,DESCALE_P1
+ paddd xmm5,xmm7
+ paddd xmm6,xmm7
+ psrad xmm5,DESCALE_P1
+ psrad xmm6,DESCALE_P1
+
+ packssdw xmm3,xmm0 ; xmm3=data2=(20 21 22 23 24 25 26 27)
+ packssdw xmm5,xmm6 ; xmm5=data5=(50 51 52 53 54 55 56 57)
+
+ movdqa xmm1, XMMWORD [wk(2)] ; xmm1=tmp13L
+ movdqa xmm4, XMMWORD [wk(3)] ; xmm4=tmp13H
+ movdqa xmm2, XMMWORD [wk(8)] ; xmm2=tmp0L
+ movdqa xmm7, XMMWORD [wk(9)] ; xmm7=tmp0H
+
+ movdqa xmm0,xmm1
+ movdqa xmm6,xmm4
+ paddd xmm1,xmm2 ; xmm1=data3L
+ paddd xmm4,xmm7 ; xmm4=data3H
+ psubd xmm0,xmm2 ; xmm0=data4L
+ psubd xmm6,xmm7 ; xmm6=data4H
+
+ movdqa xmm2,[GOTOFF(ebx,PD_DESCALE_P1)] ; xmm2=[PD_DESCALE_P1]
+
+ paddd xmm1,xmm2
+ paddd xmm4,xmm2
+ psrad xmm1,DESCALE_P1
+ psrad xmm4,DESCALE_P1
+ paddd xmm0,xmm2
+ paddd xmm6,xmm2
+ psrad xmm0,DESCALE_P1
+ psrad xmm6,DESCALE_P1
+
+ packssdw xmm1,xmm4 ; xmm1=data3=(30 31 32 33 34 35 36 37)
+ packssdw xmm0,xmm6 ; xmm0=data4=(40 41 42 43 44 45 46 47)
+
+ movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(00 10 01 11 02 12 03 13)
+ movdqa xmm2, XMMWORD [wk(1)] ; xmm2=(04 14 05 15 06 16 07 17)
+
+ movdqa xmm4,xmm3 ; transpose coefficients(phase 1)
+ punpcklwd xmm3,xmm1 ; xmm3=(20 30 21 31 22 32 23 33)
+ punpckhwd xmm4,xmm1 ; xmm4=(24 34 25 35 26 36 27 37)
+ movdqa xmm6,xmm0 ; transpose coefficients(phase 1)
+ punpcklwd xmm0,xmm5 ; xmm0=(40 50 41 51 42 52 43 53)
+ punpckhwd xmm6,xmm5 ; xmm6=(44 54 45 55 46 56 47 57)
+
+ movdqa xmm1,xmm7 ; transpose coefficients(phase 2)
+ punpckldq xmm7,xmm3 ; xmm7=(00 10 20 30 01 11 21 31)
+ punpckhdq xmm1,xmm3 ; xmm1=(02 12 22 32 03 13 23 33)
+ movdqa xmm5,xmm2 ; transpose coefficients(phase 2)
+ punpckldq xmm2,xmm4 ; xmm2=(04 14 24 34 05 15 25 35)
+ punpckhdq xmm5,xmm4 ; xmm5=(06 16 26 36 07 17 27 37)
+
+ movdqa xmm3, XMMWORD [wk(4)] ; xmm3=(60 70 61 71 62 72 63 73)
+ movdqa xmm4, XMMWORD [wk(5)] ; xmm4=(64 74 65 75 66 76 67 77)
+
+ movdqa XMMWORD [wk(6)], xmm2 ; wk(6)=(04 14 24 34 05 15 25 35)
+ movdqa XMMWORD [wk(7)], xmm5 ; wk(7)=(06 16 26 36 07 17 27 37)
+
+ movdqa xmm2,xmm0 ; transpose coefficients(phase 2)
+ punpckldq xmm0,xmm3 ; xmm0=(40 50 60 70 41 51 61 71)
+ punpckhdq xmm2,xmm3 ; xmm2=(42 52 62 72 43 53 63 73)
+ movdqa xmm5,xmm6 ; transpose coefficients(phase 2)
+ punpckldq xmm6,xmm4 ; xmm6=(44 54 64 74 45 55 65 75)
+ punpckhdq xmm5,xmm4 ; xmm5=(46 56 66 76 47 57 67 77)
+
+ movdqa xmm3,xmm7 ; transpose coefficients(phase 3)
+ punpcklqdq xmm7,xmm0 ; xmm7=col0=(00 10 20 30 40 50 60 70)
+ punpckhqdq xmm3,xmm0 ; xmm3=col1=(01 11 21 31 41 51 61 71)
+ movdqa xmm4,xmm1 ; transpose coefficients(phase 3)
+ punpcklqdq xmm1,xmm2 ; xmm1=col2=(02 12 22 32 42 52 62 72)
+ punpckhqdq xmm4,xmm2 ; xmm4=col3=(03 13 23 33 43 53 63 73)
+
+ movdqa xmm0, XMMWORD [wk(6)] ; xmm0=(04 14 24 34 05 15 25 35)
+ movdqa xmm2, XMMWORD [wk(7)] ; xmm2=(06 16 26 36 07 17 27 37)
+
+ movdqa XMMWORD [wk(8)], xmm3 ; wk(8)=col1
+ movdqa XMMWORD [wk(9)], xmm4 ; wk(9)=col3
+
+ movdqa xmm3,xmm0 ; transpose coefficients(phase 3)
+ punpcklqdq xmm0,xmm6 ; xmm0=col4=(04 14 24 34 44 54 64 74)
+ punpckhqdq xmm3,xmm6 ; xmm3=col5=(05 15 25 35 45 55 65 75)
+ movdqa xmm4,xmm2 ; transpose coefficients(phase 3)
+ punpcklqdq xmm2,xmm5 ; xmm2=col6=(06 16 26 36 46 56 66 76)
+ punpckhqdq xmm4,xmm5 ; xmm4=col7=(07 17 27 37 47 57 67 77)
+
+ movdqa XMMWORD [wk(10)], xmm3 ; wk(10)=col5
+ movdqa XMMWORD [wk(11)], xmm4 ; wk(11)=col7
+.column_end:
+
+ ; -- Prefetch the next coefficient block
+
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 0*32]
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 1*32]
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 2*32]
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 3*32]
+
+ ; ---- Pass 2: process rows from work array, store into output array.
+
+ mov eax, [original_ebp]
+ mov edi, JSAMPARRAY [output_buf(eax)] ; (JSAMPROW *)
+ mov eax, JDIMENSION [output_col(eax)]
+
+ ; -- Even part
+
+ ; xmm7=col0, xmm1=col2, xmm0=col4, xmm2=col6
+
+ ; (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;
+
+ movdqa xmm6,xmm1 ; xmm1=in2=z2
+ movdqa xmm5,xmm1
+ punpcklwd xmm6,xmm2 ; xmm2=in6=z3
+ punpckhwd xmm5,xmm2
+ movdqa xmm1,xmm6
+ movdqa xmm2,xmm5
+ pmaddwd xmm6,[GOTOFF(ebx,PW_F130_F054)] ; xmm6=tmp3L
+ pmaddwd xmm5,[GOTOFF(ebx,PW_F130_F054)] ; xmm5=tmp3H
+ pmaddwd xmm1,[GOTOFF(ebx,PW_F054_MF130)] ; xmm1=tmp2L
+ pmaddwd xmm2,[GOTOFF(ebx,PW_F054_MF130)] ; xmm2=tmp2H
+
+ movdqa xmm3,xmm7
+ paddw xmm7,xmm0 ; xmm7=in0+in4
+ psubw xmm3,xmm0 ; xmm3=in0-in4
+
+ pxor xmm4,xmm4
+ pxor xmm0,xmm0
+ punpcklwd xmm4,xmm7 ; xmm4=tmp0L
+ punpckhwd xmm0,xmm7 ; xmm0=tmp0H
+ psrad xmm4,(16-CONST_BITS) ; psrad xmm4,16 & pslld xmm4,CONST_BITS
+ psrad xmm0,(16-CONST_BITS) ; psrad xmm0,16 & pslld xmm0,CONST_BITS
+
+ movdqa xmm7,xmm4
+ paddd xmm4,xmm6 ; xmm4=tmp10L
+ psubd xmm7,xmm6 ; xmm7=tmp13L
+ movdqa xmm6,xmm0
+ paddd xmm0,xmm5 ; xmm0=tmp10H
+ psubd xmm6,xmm5 ; xmm6=tmp13H
+
+ movdqa XMMWORD [wk(0)], xmm4 ; wk(0)=tmp10L
+ movdqa XMMWORD [wk(1)], xmm0 ; wk(1)=tmp10H
+ movdqa XMMWORD [wk(2)], xmm7 ; wk(2)=tmp13L
+ movdqa XMMWORD [wk(3)], xmm6 ; wk(3)=tmp13H
+
+ pxor xmm5,xmm5
+ pxor xmm4,xmm4
+ punpcklwd xmm5,xmm3 ; xmm5=tmp1L
+ punpckhwd xmm4,xmm3 ; xmm4=tmp1H
+ psrad xmm5,(16-CONST_BITS) ; psrad xmm5,16 & pslld xmm5,CONST_BITS
+ psrad xmm4,(16-CONST_BITS) ; psrad xmm4,16 & pslld xmm4,CONST_BITS
+
+ movdqa xmm0,xmm5
+ paddd xmm5,xmm1 ; xmm5=tmp11L
+ psubd xmm0,xmm1 ; xmm0=tmp12L
+ movdqa xmm7,xmm4
+ paddd xmm4,xmm2 ; xmm4=tmp11H
+ psubd xmm7,xmm2 ; xmm7=tmp12H
+
+ movdqa XMMWORD [wk(4)], xmm5 ; wk(4)=tmp11L
+ movdqa XMMWORD [wk(5)], xmm4 ; wk(5)=tmp11H
+ movdqa XMMWORD [wk(6)], xmm0 ; wk(6)=tmp12L
+ movdqa XMMWORD [wk(7)], xmm7 ; wk(7)=tmp12H
+
+ ; -- Odd part
+
+ movdqa xmm6, XMMWORD [wk(9)] ; xmm6=col3
+ movdqa xmm3, XMMWORD [wk(8)] ; xmm3=col1
+ movdqa xmm1, XMMWORD [wk(11)] ; xmm1=col7
+ movdqa xmm2, XMMWORD [wk(10)] ; xmm2=col5
+
+ movdqa xmm5,xmm6
+ movdqa xmm4,xmm3
+ paddw xmm5,xmm1 ; xmm5=z3
+ paddw xmm4,xmm2 ; xmm4=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);
+
+ movdqa xmm0,xmm5
+ movdqa xmm7,xmm5
+ punpcklwd xmm0,xmm4
+ punpckhwd xmm7,xmm4
+ movdqa xmm5,xmm0
+ movdqa xmm4,xmm7
+ pmaddwd xmm0,[GOTOFF(ebx,PW_MF078_F117)] ; xmm0=z3L
+ pmaddwd xmm7,[GOTOFF(ebx,PW_MF078_F117)] ; xmm7=z3H
+ pmaddwd xmm5,[GOTOFF(ebx,PW_F117_F078)] ; xmm5=z4L
+ pmaddwd xmm4,[GOTOFF(ebx,PW_F117_F078)] ; xmm4=z4H
+
+ movdqa XMMWORD [wk(10)], xmm0 ; wk(10)=z3L
+ movdqa XMMWORD [wk(11)], xmm7 ; 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;
+
+ movdqa xmm0,xmm1
+ movdqa xmm7,xmm1
+ punpcklwd xmm0,xmm3
+ punpckhwd xmm7,xmm3
+ movdqa xmm1,xmm0
+ movdqa xmm3,xmm7
+ pmaddwd xmm0,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm0=tmp0L
+ pmaddwd xmm7,[GOTOFF(ebx,PW_MF060_MF089)] ; xmm7=tmp0H
+ pmaddwd xmm1,[GOTOFF(ebx,PW_MF089_F060)] ; xmm1=tmp3L
+ pmaddwd xmm3,[GOTOFF(ebx,PW_MF089_F060)] ; xmm3=tmp3H
+
+ paddd xmm0, XMMWORD [wk(10)] ; xmm0=tmp0L
+ paddd xmm7, XMMWORD [wk(11)] ; xmm7=tmp0H
+ paddd xmm1,xmm5 ; xmm1=tmp3L
+ paddd xmm3,xmm4 ; xmm3=tmp3H
+
+ movdqa XMMWORD [wk(8)], xmm0 ; wk(8)=tmp0L
+ movdqa XMMWORD [wk(9)], xmm7 ; wk(9)=tmp0H
+
+ movdqa xmm0,xmm2
+ movdqa xmm7,xmm2
+ punpcklwd xmm0,xmm6
+ punpckhwd xmm7,xmm6
+ movdqa xmm2,xmm0
+ movdqa xmm6,xmm7
+ pmaddwd xmm0,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm0=tmp1L
+ pmaddwd xmm7,[GOTOFF(ebx,PW_MF050_MF256)] ; xmm7=tmp1H
+ pmaddwd xmm2,[GOTOFF(ebx,PW_MF256_F050)] ; xmm2=tmp2L
+ pmaddwd xmm6,[GOTOFF(ebx,PW_MF256_F050)] ; xmm6=tmp2H
+
+ paddd xmm0,xmm5 ; xmm0=tmp1L
+ paddd xmm7,xmm4 ; xmm7=tmp1H
+ paddd xmm2, XMMWORD [wk(10)] ; xmm2=tmp2L
+ paddd xmm6, XMMWORD [wk(11)] ; xmm6=tmp2H
+
+ movdqa XMMWORD [wk(10)], xmm0 ; wk(10)=tmp1L
+ movdqa XMMWORD [wk(11)], xmm7 ; wk(11)=tmp1H
+
+ ; -- Final output stage
+
+ movdqa xmm5, XMMWORD [wk(0)] ; xmm5=tmp10L
+ movdqa xmm4, XMMWORD [wk(1)] ; xmm4=tmp10H
+
+ movdqa xmm0,xmm5
+ movdqa xmm7,xmm4
+ paddd xmm5,xmm1 ; xmm5=data0L
+ paddd xmm4,xmm3 ; xmm4=data0H
+ psubd xmm0,xmm1 ; xmm0=data7L
+ psubd xmm7,xmm3 ; xmm7=data7H
+
+ movdqa xmm1,[GOTOFF(ebx,PD_DESCALE_P2)] ; xmm1=[PD_DESCALE_P2]
+
+ paddd xmm5,xmm1
+ paddd xmm4,xmm1
+ psrad xmm5,DESCALE_P2
+ psrad xmm4,DESCALE_P2
+ paddd xmm0,xmm1
+ paddd xmm7,xmm1
+ psrad xmm0,DESCALE_P2
+ psrad xmm7,DESCALE_P2
+
+ packssdw xmm5,xmm4 ; xmm5=data0=(00 10 20 30 40 50 60 70)
+ packssdw xmm0,xmm7 ; xmm0=data7=(07 17 27 37 47 57 67 77)
+
+ movdqa xmm3, XMMWORD [wk(4)] ; xmm3=tmp11L
+ movdqa xmm1, XMMWORD [wk(5)] ; xmm1=tmp11H
+
+ movdqa xmm4,xmm3
+ movdqa xmm7,xmm1
+ paddd xmm3,xmm2 ; xmm3=data1L
+ paddd xmm1,xmm6 ; xmm1=data1H
+ psubd xmm4,xmm2 ; xmm4=data6L
+ psubd xmm7,xmm6 ; xmm7=data6H
+
+ movdqa xmm2,[GOTOFF(ebx,PD_DESCALE_P2)] ; xmm2=[PD_DESCALE_P2]
+
+ paddd xmm3,xmm2
+ paddd xmm1,xmm2
+ psrad xmm3,DESCALE_P2
+ psrad xmm1,DESCALE_P2
+ paddd xmm4,xmm2
+ paddd xmm7,xmm2
+ psrad xmm4,DESCALE_P2
+ psrad xmm7,DESCALE_P2
+
+ packssdw xmm3,xmm1 ; xmm3=data1=(01 11 21 31 41 51 61 71)
+ packssdw xmm4,xmm7 ; xmm4=data6=(06 16 26 36 46 56 66 76)
+
+ packsswb xmm5,xmm4 ; xmm5=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
+ packsswb xmm3,xmm0 ; xmm3=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
+
+ movdqa xmm6, XMMWORD [wk(6)] ; xmm6=tmp12L
+ movdqa xmm2, XMMWORD [wk(7)] ; xmm2=tmp12H
+ movdqa xmm1, XMMWORD [wk(10)] ; xmm1=tmp1L
+ movdqa xmm7, XMMWORD [wk(11)] ; xmm7=tmp1H
+
+ movdqa XMMWORD [wk(0)], xmm5 ; wk(0)=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
+ movdqa XMMWORD [wk(1)], xmm3 ; wk(1)=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
+
+ movdqa xmm4,xmm6
+ movdqa xmm0,xmm2
+ paddd xmm6,xmm1 ; xmm6=data2L
+ paddd xmm2,xmm7 ; xmm2=data2H
+ psubd xmm4,xmm1 ; xmm4=data5L
+ psubd xmm0,xmm7 ; xmm0=data5H
+
+ movdqa xmm5,[GOTOFF(ebx,PD_DESCALE_P2)] ; xmm5=[PD_DESCALE_P2]
+
+ paddd xmm6,xmm5
+ paddd xmm2,xmm5
+ psrad xmm6,DESCALE_P2
+ psrad xmm2,DESCALE_P2
+ paddd xmm4,xmm5
+ paddd xmm0,xmm5
+ psrad xmm4,DESCALE_P2
+ psrad xmm0,DESCALE_P2
+
+ packssdw xmm6,xmm2 ; xmm6=data2=(02 12 22 32 42 52 62 72)
+ packssdw xmm4,xmm0 ; xmm4=data5=(05 15 25 35 45 55 65 75)
+
+ movdqa xmm3, XMMWORD [wk(2)] ; xmm3=tmp13L
+ movdqa xmm1, XMMWORD [wk(3)] ; xmm1=tmp13H
+ movdqa xmm7, XMMWORD [wk(8)] ; xmm7=tmp0L
+ movdqa xmm5, XMMWORD [wk(9)] ; xmm5=tmp0H
+
+ movdqa xmm2,xmm3
+ movdqa xmm0,xmm1
+ paddd xmm3,xmm7 ; xmm3=data3L
+ paddd xmm1,xmm5 ; xmm1=data3H
+ psubd xmm2,xmm7 ; xmm2=data4L
+ psubd xmm0,xmm5 ; xmm0=data4H
+
+ movdqa xmm7,[GOTOFF(ebx,PD_DESCALE_P2)] ; xmm7=[PD_DESCALE_P2]
+
+ paddd xmm3,xmm7
+ paddd xmm1,xmm7
+ psrad xmm3,DESCALE_P2
+ psrad xmm1,DESCALE_P2
+ paddd xmm2,xmm7
+ paddd xmm0,xmm7
+ psrad xmm2,DESCALE_P2
+ psrad xmm0,DESCALE_P2
+
+ movdqa xmm5,[GOTOFF(ebx,PB_CENTERJSAMP)] ; xmm5=[PB_CENTERJSAMP]
+
+ packssdw xmm3,xmm1 ; xmm3=data3=(03 13 23 33 43 53 63 73)
+ packssdw xmm2,xmm0 ; xmm2=data4=(04 14 24 34 44 54 64 74)
+
+ movdqa xmm7, XMMWORD [wk(0)] ; xmm7=(00 10 20 30 40 50 60 70 06 16 26 36 46 56 66 76)
+ movdqa xmm1, XMMWORD [wk(1)] ; xmm1=(01 11 21 31 41 51 61 71 07 17 27 37 47 57 67 77)
+
+ packsswb xmm6,xmm2 ; xmm6=(02 12 22 32 42 52 62 72 04 14 24 34 44 54 64 74)
+ packsswb xmm3,xmm4 ; xmm3=(03 13 23 33 43 53 63 73 05 15 25 35 45 55 65 75)
+
+ paddb xmm7,xmm5
+ paddb xmm1,xmm5
+ paddb xmm6,xmm5
+ paddb xmm3,xmm5
+
+ movdqa xmm0,xmm7 ; transpose coefficients(phase 1)
+ punpcklbw xmm7,xmm1 ; xmm7=(00 01 10 11 20 21 30 31 40 41 50 51 60 61 70 71)
+ punpckhbw xmm0,xmm1 ; xmm0=(06 07 16 17 26 27 36 37 46 47 56 57 66 67 76 77)
+ movdqa xmm2,xmm6 ; transpose coefficients(phase 1)
+ punpcklbw xmm6,xmm3 ; xmm6=(02 03 12 13 22 23 32 33 42 43 52 53 62 63 72 73)
+ punpckhbw xmm2,xmm3 ; xmm2=(04 05 14 15 24 25 34 35 44 45 54 55 64 65 74 75)
+
+ movdqa xmm4,xmm7 ; transpose coefficients(phase 2)
+ punpcklwd xmm7,xmm6 ; xmm7=(00 01 02 03 10 11 12 13 20 21 22 23 30 31 32 33)
+ punpckhwd xmm4,xmm6 ; xmm4=(40 41 42 43 50 51 52 53 60 61 62 63 70 71 72 73)
+ movdqa xmm5,xmm2 ; transpose coefficients(phase 2)
+ punpcklwd xmm2,xmm0 ; xmm2=(04 05 06 07 14 15 16 17 24 25 26 27 34 35 36 37)
+ punpckhwd xmm5,xmm0 ; xmm5=(44 45 46 47 54 55 56 57 64 65 66 67 74 75 76 77)
+
+ movdqa xmm1,xmm7 ; transpose coefficients(phase 3)
+ punpckldq xmm7,xmm2 ; xmm7=(00 01 02 03 04 05 06 07 10 11 12 13 14 15 16 17)
+ punpckhdq xmm1,xmm2 ; xmm1=(20 21 22 23 24 25 26 27 30 31 32 33 34 35 36 37)
+ movdqa xmm3,xmm4 ; transpose coefficients(phase 3)
+ punpckldq xmm4,xmm5 ; xmm4=(40 41 42 43 44 45 46 47 50 51 52 53 54 55 56 57)
+ punpckhdq xmm3,xmm5 ; xmm3=(60 61 62 63 64 65 66 67 70 71 72 73 74 75 76 77)
+
+ pshufd xmm6,xmm7,0x4E ; xmm6=(10 11 12 13 14 15 16 17 00 01 02 03 04 05 06 07)
+ pshufd xmm0,xmm1,0x4E ; xmm0=(30 31 32 33 34 35 36 37 20 21 22 23 24 25 26 27)
+ pshufd xmm2,xmm4,0x4E ; xmm2=(50 51 52 53 54 55 56 57 40 41 42 43 44 45 46 47)
+ pshufd xmm5,xmm3,0x4E ; xmm5=(70 71 72 73 74 75 76 77 60 61 62 63 64 65 66 67)
+
+ mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW]
+ mov esi, JSAMPROW [edi+2*SIZEOF_JSAMPROW]
+ movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm7
+ movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm1
+ mov edx, JSAMPROW [edi+4*SIZEOF_JSAMPROW]
+ mov esi, JSAMPROW [edi+6*SIZEOF_JSAMPROW]
+ movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm4
+ movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm3
+
+ mov edx, JSAMPROW [edi+1*SIZEOF_JSAMPROW]
+ mov esi, JSAMPROW [edi+3*SIZEOF_JSAMPROW]
+ movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm6
+ movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm0
+ mov edx, JSAMPROW [edi+5*SIZEOF_JSAMPROW]
+ mov esi, JSAMPROW [edi+7*SIZEOF_JSAMPROW]
+ movq XMM_MMWORD [edx+eax*SIZEOF_JSAMPLE], xmm2
+ movq XMM_MMWORD [esi+eax*SIZEOF_JSAMPLE], xmm5
+
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; unused
+ poppic ebx
+ mov esp,ebp ; esp <- aligned ebp
+ pop esp ; esp <- original ebp
+ pop ebp
+ ret
+
--- /dev/null
+;
+; jiss2red.asm - reduced-size IDCT (SSE2)
+;
+; Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
+;
+; Based on
+; 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 inverse-DCT routines that produce reduced-size
+; output: either 4x4 or 2x2 pixels from an 8x8 DCT block.
+; The following code is based directly on the IJG's original jidctred.c;
+; see the jidctred.c for more details.
+;
+; [TAB8]
+
+%include "simd/jsimdext.inc"
+%include "simd/jdct.inc"
+
+; --------------------------------------------------------------------------
+
+%define CONST_BITS 13
+%define PASS1_BITS 2
+
+%define DESCALE_P1_4 (CONST_BITS-PASS1_BITS+1)
+%define DESCALE_P2_4 (CONST_BITS+PASS1_BITS+3+1)
+%define DESCALE_P1_2 (CONST_BITS-PASS1_BITS+2)
+%define DESCALE_P2_2 (CONST_BITS+PASS1_BITS+3+2)
+
+%if CONST_BITS == 13
+F_0_211 equ 1730 ; FIX(0.211164243)
+F_0_509 equ 4176 ; FIX(0.509795579)
+F_0_601 equ 4926 ; FIX(0.601344887)
+F_0_720 equ 5906 ; FIX(0.720959822)
+F_0_765 equ 6270 ; FIX(0.765366865)
+F_0_850 equ 6967 ; FIX(0.850430095)
+F_0_899 equ 7373 ; FIX(0.899976223)
+F_1_061 equ 8697 ; FIX(1.061594337)
+F_1_272 equ 10426 ; FIX(1.272758580)
+F_1_451 equ 11893 ; FIX(1.451774981)
+F_1_847 equ 15137 ; FIX(1.847759065)
+F_2_172 equ 17799 ; FIX(2.172734803)
+F_2_562 equ 20995 ; FIX(2.562915447)
+F_3_624 equ 29692 ; FIX(3.624509785)
+%else
+; NASM cannot do compile-time arithmetic on floating-point constants.
+%define DESCALE(x,n) (((x)+(1<<((n)-1)))>>(n))
+F_0_211 equ DESCALE( 226735879,30-CONST_BITS) ; FIX(0.211164243)
+F_0_509 equ DESCALE( 547388834,30-CONST_BITS) ; FIX(0.509795579)
+F_0_601 equ DESCALE( 645689155,30-CONST_BITS) ; FIX(0.601344887)
+F_0_720 equ DESCALE( 774124714,30-CONST_BITS) ; FIX(0.720959822)
+F_0_765 equ DESCALE( 821806413,30-CONST_BITS) ; FIX(0.765366865)
+F_0_850 equ DESCALE( 913142361,30-CONST_BITS) ; FIX(0.850430095)
+F_0_899 equ DESCALE( 966342111,30-CONST_BITS) ; FIX(0.899976223)
+F_1_061 equ DESCALE(1139878239,30-CONST_BITS) ; FIX(1.061594337)
+F_1_272 equ DESCALE(1366614119,30-CONST_BITS) ; FIX(1.272758580)
+F_1_451 equ DESCALE(1558831516,30-CONST_BITS) ; FIX(1.451774981)
+F_1_847 equ DESCALE(1984016188,30-CONST_BITS) ; FIX(1.847759065)
+F_2_172 equ DESCALE(2332956230,30-CONST_BITS) ; FIX(2.172734803)
+F_2_562 equ DESCALE(2751909506,30-CONST_BITS) ; FIX(2.562915447)
+F_3_624 equ DESCALE(3891787747,30-CONST_BITS) ; FIX(3.624509785)
+%endif
+
+; --------------------------------------------------------------------------
+ SECTION SEG_CONST
+
+ alignz 16
+ global EXTN(jconst_idct_red_sse2)
+
+EXTN(jconst_idct_red_sse2):
+
+PW_F184_MF076 times 4 dw F_1_847,-F_0_765
+PW_F256_F089 times 4 dw F_2_562, F_0_899
+PW_F106_MF217 times 4 dw F_1_061,-F_2_172
+PW_MF060_MF050 times 4 dw -F_0_601,-F_0_509
+PW_F145_MF021 times 4 dw F_1_451,-F_0_211
+PW_F362_MF127 times 4 dw F_3_624,-F_1_272
+PW_F085_MF072 times 4 dw F_0_850,-F_0_720
+PD_DESCALE_P1_4 times 4 dd 1 << (DESCALE_P1_4-1)
+PD_DESCALE_P2_4 times 4 dd 1 << (DESCALE_P2_4-1)
+PD_DESCALE_P1_2 times 4 dd 1 << (DESCALE_P1_2-1)
+PD_DESCALE_P2_2 times 4 dd 1 << (DESCALE_P2_2-1)
+PB_CENTERJSAMP times 16 db CENTERJSAMPLE
+
+ alignz 16
+
+; --------------------------------------------------------------------------
+ SECTION SEG_TEXT
+ BITS 32
+;
+; Perform dequantization and inverse DCT on one block of coefficients,
+; producing a reduced-size 4x4 output block.
+;
+; GLOBAL(void)
+; jsimd_idct_4x4_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
+
+ align 16
+ global EXTN(jsimd_idct_4x4_sse2)
+
+EXTN(jsimd_idct_4x4_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, [wk(0)]
+ pushpic ebx
+; push ecx ; unused
+; push edx ; need not be preserved
+ push esi
+ push edi
+
+ get_GOT ebx ; get GOT address
+
+ ; ---- Pass 1: process columns from input.
+
+; mov eax, [original_ebp]
+ mov edx, POINTER [dct_table(eax)] ; quantptr
+ mov esi, JCOEFPTR [coef_block(eax)] ; inptr
+
+%ifndef NO_ZERO_COLUMN_TEST_4X4_SSE2
+ mov eax, DWORD [DWBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ or eax, DWORD [DWBLOCK(2,0,esi,SIZEOF_JCOEF)]
+ jnz short .columnDCT
+
+ movdqa xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)]
+ por xmm0, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
+ por xmm1, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
+ por xmm0, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)]
+ por xmm1, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
+ por xmm0,xmm1
+ packsswb xmm0,xmm0
+ packsswb xmm0,xmm0
+ movd eax,xmm0
+ test eax,eax
+ jnz short .columnDCT
+
+ ; -- AC terms all zero
+
+ movdqa xmm0, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm0, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+
+ psllw xmm0,PASS1_BITS
+
+ movdqa xmm3,xmm0 ; xmm0=in0=(00 01 02 03 04 05 06 07)
+ punpcklwd xmm0,xmm0 ; xmm0=(00 00 01 01 02 02 03 03)
+ punpckhwd xmm3,xmm3 ; xmm3=(04 04 05 05 06 06 07 07)
+
+ pshufd xmm1,xmm0,0x50 ; xmm1=[col0 col1]=(00 00 00 00 01 01 01 01)
+ pshufd xmm0,xmm0,0xFA ; xmm0=[col2 col3]=(02 02 02 02 03 03 03 03)
+ pshufd xmm6,xmm3,0x50 ; xmm6=[col4 col5]=(04 04 04 04 05 05 05 05)
+ pshufd xmm3,xmm3,0xFA ; xmm3=[col6 col7]=(06 06 06 06 07 07 07 07)
+
+ jmp near .column_end
+ alignx 16,7
+%endif
+.columnDCT:
+
+ ; -- Odd part
+
+ movdqa xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm0, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ pmullw xmm1, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ movdqa xmm2, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm3, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm2, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ pmullw xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+
+ movdqa xmm4,xmm0
+ movdqa xmm5,xmm0
+ punpcklwd xmm4,xmm1
+ punpckhwd xmm5,xmm1
+ movdqa xmm0,xmm4
+ movdqa xmm1,xmm5
+ pmaddwd xmm4,[GOTOFF(ebx,PW_F256_F089)] ; xmm4=(tmp2L)
+ pmaddwd xmm5,[GOTOFF(ebx,PW_F256_F089)] ; xmm5=(tmp2H)
+ pmaddwd xmm0,[GOTOFF(ebx,PW_F106_MF217)] ; xmm0=(tmp0L)
+ pmaddwd xmm1,[GOTOFF(ebx,PW_F106_MF217)] ; xmm1=(tmp0H)
+
+ movdqa xmm6,xmm2
+ movdqa xmm7,xmm2
+ punpcklwd xmm6,xmm3
+ punpckhwd xmm7,xmm3
+ movdqa xmm2,xmm6
+ movdqa xmm3,xmm7
+ pmaddwd xmm6,[GOTOFF(ebx,PW_MF060_MF050)] ; xmm6=(tmp2L)
+ pmaddwd xmm7,[GOTOFF(ebx,PW_MF060_MF050)] ; xmm7=(tmp2H)
+ pmaddwd xmm2,[GOTOFF(ebx,PW_F145_MF021)] ; xmm2=(tmp0L)
+ pmaddwd xmm3,[GOTOFF(ebx,PW_F145_MF021)] ; xmm3=(tmp0H)
+
+ paddd xmm6,xmm4 ; xmm6=tmp2L
+ paddd xmm7,xmm5 ; xmm7=tmp2H
+ paddd xmm2,xmm0 ; xmm2=tmp0L
+ paddd xmm3,xmm1 ; xmm3=tmp0H
+
+ movdqa XMMWORD [wk(0)], xmm2 ; wk(0)=tmp0L
+ movdqa XMMWORD [wk(1)], xmm3 ; wk(1)=tmp0H
+
+ ; -- Even part
+
+ movdqa xmm4, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm5, XMMWORD [XMMBLOCK(2,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm0, XMMWORD [XMMBLOCK(6,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm4, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ pmullw xmm5, XMMWORD [XMMBLOCK(2,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ pmullw xmm0, XMMWORD [XMMBLOCK(6,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+
+ pxor xmm1,xmm1
+ pxor xmm2,xmm2
+ punpcklwd xmm1,xmm4 ; xmm1=tmp0L
+ punpckhwd xmm2,xmm4 ; xmm2=tmp0H
+ psrad xmm1,(16-CONST_BITS-1) ; psrad xmm1,16 & pslld xmm1,CONST_BITS+1
+ psrad xmm2,(16-CONST_BITS-1) ; psrad xmm2,16 & pslld xmm2,CONST_BITS+1
+
+ movdqa xmm3,xmm5 ; xmm5=in2=z2
+ punpcklwd xmm5,xmm0 ; xmm0=in6=z3
+ punpckhwd xmm3,xmm0
+ pmaddwd xmm5,[GOTOFF(ebx,PW_F184_MF076)] ; xmm5=tmp2L
+ pmaddwd xmm3,[GOTOFF(ebx,PW_F184_MF076)] ; xmm3=tmp2H
+
+ movdqa xmm4,xmm1
+ movdqa xmm0,xmm2
+ paddd xmm1,xmm5 ; xmm1=tmp10L
+ paddd xmm2,xmm3 ; xmm2=tmp10H
+ psubd xmm4,xmm5 ; xmm4=tmp12L
+ psubd xmm0,xmm3 ; xmm0=tmp12H
+
+ ; -- Final output stage
+
+ movdqa xmm5,xmm1
+ movdqa xmm3,xmm2
+ paddd xmm1,xmm6 ; xmm1=data0L
+ paddd xmm2,xmm7 ; xmm2=data0H
+ psubd xmm5,xmm6 ; xmm5=data3L
+ psubd xmm3,xmm7 ; xmm3=data3H
+
+ movdqa xmm6,[GOTOFF(ebx,PD_DESCALE_P1_4)] ; xmm6=[PD_DESCALE_P1_4]
+
+ paddd xmm1,xmm6
+ paddd xmm2,xmm6
+ psrad xmm1,DESCALE_P1_4
+ psrad xmm2,DESCALE_P1_4
+ paddd xmm5,xmm6
+ paddd xmm3,xmm6
+ psrad xmm5,DESCALE_P1_4
+ psrad xmm3,DESCALE_P1_4
+
+ packssdw xmm1,xmm2 ; xmm1=data0=(00 01 02 03 04 05 06 07)
+ packssdw xmm5,xmm3 ; xmm5=data3=(30 31 32 33 34 35 36 37)
+
+ movdqa xmm7, XMMWORD [wk(0)] ; xmm7=tmp0L
+ movdqa xmm6, XMMWORD [wk(1)] ; xmm6=tmp0H
+
+ movdqa xmm2,xmm4
+ movdqa xmm3,xmm0
+ paddd xmm4,xmm7 ; xmm4=data1L
+ paddd xmm0,xmm6 ; xmm0=data1H
+ psubd xmm2,xmm7 ; xmm2=data2L
+ psubd xmm3,xmm6 ; xmm3=data2H
+
+ movdqa xmm7,[GOTOFF(ebx,PD_DESCALE_P1_4)] ; xmm7=[PD_DESCALE_P1_4]
+
+ paddd xmm4,xmm7
+ paddd xmm0,xmm7
+ psrad xmm4,DESCALE_P1_4
+ psrad xmm0,DESCALE_P1_4
+ paddd xmm2,xmm7
+ paddd xmm3,xmm7
+ psrad xmm2,DESCALE_P1_4
+ psrad xmm3,DESCALE_P1_4
+
+ packssdw xmm4,xmm0 ; xmm4=data1=(10 11 12 13 14 15 16 17)
+ packssdw xmm2,xmm3 ; xmm2=data2=(20 21 22 23 24 25 26 27)
+
+ movdqa xmm6,xmm1 ; transpose coefficients(phase 1)
+ punpcklwd xmm1,xmm4 ; xmm1=(00 10 01 11 02 12 03 13)
+ punpckhwd xmm6,xmm4 ; xmm6=(04 14 05 15 06 16 07 17)
+ movdqa xmm7,xmm2 ; transpose coefficients(phase 1)
+ punpcklwd xmm2,xmm5 ; xmm2=(20 30 21 31 22 32 23 33)
+ punpckhwd xmm7,xmm5 ; xmm7=(24 34 25 35 26 36 27 37)
+
+ movdqa xmm0,xmm1 ; transpose coefficients(phase 2)
+ punpckldq xmm1,xmm2 ; xmm1=[col0 col1]=(00 10 20 30 01 11 21 31)
+ punpckhdq xmm0,xmm2 ; xmm0=[col2 col3]=(02 12 22 32 03 13 23 33)
+ movdqa xmm3,xmm6 ; transpose coefficients(phase 2)
+ punpckldq xmm6,xmm7 ; xmm6=[col4 col5]=(04 14 24 34 05 15 25 35)
+ punpckhdq xmm3,xmm7 ; xmm3=[col6 col7]=(06 16 26 36 07 17 27 37)
+.column_end:
+
+ ; -- Prefetch the next coefficient block
+
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 0*32]
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 1*32]
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 2*32]
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 3*32]
+
+ ; ---- Pass 2: process rows, store into output array.
+
+ mov eax, [original_ebp]
+ mov edi, JSAMPARRAY [output_buf(eax)] ; (JSAMPROW *)
+ mov eax, JDIMENSION [output_col(eax)]
+
+ ; -- Even part
+
+ pxor xmm4,xmm4
+ punpcklwd xmm4,xmm1 ; xmm4=tmp0
+ psrad xmm4,(16-CONST_BITS-1) ; psrad xmm4,16 & pslld xmm4,CONST_BITS+1
+
+ ; -- Odd part
+
+ punpckhwd xmm1,xmm0
+ punpckhwd xmm6,xmm3
+ movdqa xmm5,xmm1
+ movdqa xmm2,xmm6
+ pmaddwd xmm1,[GOTOFF(ebx,PW_F256_F089)] ; xmm1=(tmp2)
+ pmaddwd xmm6,[GOTOFF(ebx,PW_MF060_MF050)] ; xmm6=(tmp2)
+ pmaddwd xmm5,[GOTOFF(ebx,PW_F106_MF217)] ; xmm5=(tmp0)
+ pmaddwd xmm2,[GOTOFF(ebx,PW_F145_MF021)] ; xmm2=(tmp0)
+
+ paddd xmm6,xmm1 ; xmm6=tmp2
+ paddd xmm2,xmm5 ; xmm2=tmp0
+
+ ; -- Even part
+
+ punpcklwd xmm0,xmm3
+ pmaddwd xmm0,[GOTOFF(ebx,PW_F184_MF076)] ; xmm0=tmp2
+
+ movdqa xmm7,xmm4
+ paddd xmm4,xmm0 ; xmm4=tmp10
+ psubd xmm7,xmm0 ; xmm7=tmp12
+
+ ; -- Final output stage
+
+ movdqa xmm1,[GOTOFF(ebx,PD_DESCALE_P2_4)] ; xmm1=[PD_DESCALE_P2_4]
+
+ movdqa xmm5,xmm4
+ movdqa xmm3,xmm7
+ paddd xmm4,xmm6 ; xmm4=data0=(00 10 20 30)
+ paddd xmm7,xmm2 ; xmm7=data1=(01 11 21 31)
+ psubd xmm5,xmm6 ; xmm5=data3=(03 13 23 33)
+ psubd xmm3,xmm2 ; xmm3=data2=(02 12 22 32)
+
+ paddd xmm4,xmm1
+ paddd xmm7,xmm1
+ psrad xmm4,DESCALE_P2_4
+ psrad xmm7,DESCALE_P2_4
+ paddd xmm5,xmm1
+ paddd xmm3,xmm1
+ psrad xmm5,DESCALE_P2_4
+ psrad xmm3,DESCALE_P2_4
+
+ packssdw xmm4,xmm3 ; xmm4=(00 10 20 30 02 12 22 32)
+ packssdw xmm7,xmm5 ; xmm7=(01 11 21 31 03 13 23 33)
+
+ movdqa xmm0,xmm4 ; transpose coefficients(phase 1)
+ punpcklwd xmm4,xmm7 ; xmm4=(00 01 10 11 20 21 30 31)
+ punpckhwd xmm0,xmm7 ; xmm0=(02 03 12 13 22 23 32 33)
+
+ movdqa xmm6,xmm4 ; transpose coefficients(phase 2)
+ punpckldq xmm4,xmm0 ; xmm4=(00 01 02 03 10 11 12 13)
+ punpckhdq xmm6,xmm0 ; xmm6=(20 21 22 23 30 31 32 33)
+
+ packsswb xmm4,xmm6 ; xmm4=(00 01 02 03 10 11 12 13 20 ..)
+ paddb xmm4,[GOTOFF(ebx,PB_CENTERJSAMP)]
+
+ pshufd xmm2,xmm4,0x39 ; xmm2=(10 11 12 13 20 21 22 23 30 ..)
+ pshufd xmm1,xmm4,0x4E ; xmm1=(20 21 22 23 30 31 32 33 00 ..)
+ pshufd xmm3,xmm4,0x93 ; xmm3=(30 31 32 33 00 01 02 03 10 ..)
+
+ mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW]
+ mov esi, JSAMPROW [edi+1*SIZEOF_JSAMPROW]
+ movd XMM_DWORD [edx+eax*SIZEOF_JSAMPLE], xmm4
+ movd XMM_DWORD [esi+eax*SIZEOF_JSAMPLE], xmm2
+ mov edx, JSAMPROW [edi+2*SIZEOF_JSAMPROW]
+ mov esi, JSAMPROW [edi+3*SIZEOF_JSAMPROW]
+ movd XMM_DWORD [edx+eax*SIZEOF_JSAMPLE], xmm1
+ movd XMM_DWORD [esi+eax*SIZEOF_JSAMPLE], xmm3
+
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; unused
+ poppic ebx
+ mov esp,ebp ; esp <- aligned ebp
+ pop esp ; esp <- original ebp
+ pop ebp
+ ret
+
+
+; --------------------------------------------------------------------------
+;
+; Perform dequantization and inverse DCT on one block of coefficients,
+; producing a reduced-size 2x2 output block.
+;
+; GLOBAL(void)
+; jsimd_idct_2x2_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
+
+ align 16
+ global EXTN(jsimd_idct_2x2_sse2)
+
+EXTN(jsimd_idct_2x2_sse2):
+ push ebp
+ mov ebp,esp
+ 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.
+
+ mov edx, POINTER [dct_table(ebp)] ; quantptr
+ mov esi, JCOEFPTR [coef_block(ebp)] ; inptr
+
+ ; | input: | result: |
+ ; | 00 01 ** 03 ** 05 ** 07 | |
+ ; | 10 11 ** 13 ** 15 ** 17 | |
+ ; | ** ** ** ** ** ** ** ** | |
+ ; | 30 31 ** 33 ** 35 ** 37 | A0 A1 A3 A5 A7 |
+ ; | ** ** ** ** ** ** ** ** | B0 B1 B3 B5 B7 |
+ ; | 50 51 ** 53 ** 55 ** 57 | |
+ ; | ** ** ** ** ** ** ** ** | |
+ ; | 70 71 ** 73 ** 75 ** 77 | |
+
+ ; -- Odd part
+
+ movdqa xmm0, XMMWORD [XMMBLOCK(1,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm1, XMMWORD [XMMBLOCK(3,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm0, XMMWORD [XMMBLOCK(1,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ pmullw xmm1, XMMWORD [XMMBLOCK(3,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ movdqa xmm2, XMMWORD [XMMBLOCK(5,0,esi,SIZEOF_JCOEF)]
+ movdqa xmm3, XMMWORD [XMMBLOCK(7,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm2, XMMWORD [XMMBLOCK(5,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+ pmullw xmm3, XMMWORD [XMMBLOCK(7,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+
+ ; xmm0=(10 11 ** 13 ** 15 ** 17), xmm1=(30 31 ** 33 ** 35 ** 37)
+ ; xmm2=(50 51 ** 53 ** 55 ** 57), xmm3=(70 71 ** 73 ** 75 ** 77)
+
+ pcmpeqd xmm7,xmm7
+ pslld xmm7,WORD_BIT ; xmm7={0x0000 0xFFFF 0x0000 0xFFFF ..}
+
+ movdqa xmm4,xmm0 ; xmm4=(10 11 ** 13 ** 15 ** 17)
+ movdqa xmm5,xmm2 ; xmm5=(50 51 ** 53 ** 55 ** 57)
+ punpcklwd xmm4,xmm1 ; xmm4=(10 30 11 31 ** ** 13 33)
+ punpcklwd xmm5,xmm3 ; xmm5=(50 70 51 71 ** ** 53 73)
+ pmaddwd xmm4,[GOTOFF(ebx,PW_F362_MF127)]
+ pmaddwd xmm5,[GOTOFF(ebx,PW_F085_MF072)]
+
+ psrld xmm0,WORD_BIT ; xmm0=(11 -- 13 -- 15 -- 17 --)
+ pand xmm1,xmm7 ; xmm1=(-- 31 -- 33 -- 35 -- 37)
+ psrld xmm2,WORD_BIT ; xmm2=(51 -- 53 -- 55 -- 57 --)
+ pand xmm3,xmm7 ; xmm3=(-- 71 -- 73 -- 75 -- 77)
+ por xmm0,xmm1 ; xmm0=(11 31 13 33 15 35 17 37)
+ por xmm2,xmm3 ; xmm2=(51 71 53 73 55 75 57 77)
+ pmaddwd xmm0,[GOTOFF(ebx,PW_F362_MF127)]
+ pmaddwd xmm2,[GOTOFF(ebx,PW_F085_MF072)]
+
+ paddd xmm4,xmm5 ; xmm4=tmp0[col0 col1 **** col3]
+ paddd xmm0,xmm2 ; xmm0=tmp0[col1 col3 col5 col7]
+
+ ; -- Even part
+
+ movdqa xmm6, XMMWORD [XMMBLOCK(0,0,esi,SIZEOF_JCOEF)]
+ pmullw xmm6, XMMWORD [XMMBLOCK(0,0,edx,SIZEOF_ISLOW_MULT_TYPE)]
+
+ ; xmm6=(00 01 ** 03 ** 05 ** 07)
+
+ movdqa xmm1,xmm6 ; xmm1=(00 01 ** 03 ** 05 ** 07)
+ pslld xmm6,WORD_BIT ; xmm6=(-- 00 -- ** -- ** -- **)
+ pand xmm1,xmm7 ; xmm1=(-- 01 -- 03 -- 05 -- 07)
+ psrad xmm6,(WORD_BIT-CONST_BITS-2) ; xmm6=tmp10[col0 **** **** ****]
+ psrad xmm1,(WORD_BIT-CONST_BITS-2) ; xmm1=tmp10[col1 col3 col5 col7]
+
+ ; -- Final output stage
+
+ movdqa xmm3,xmm6
+ movdqa xmm5,xmm1
+ paddd xmm6,xmm4 ; xmm6=data0[col0 **** **** ****]=(A0 ** ** **)
+ paddd xmm1,xmm0 ; xmm1=data0[col1 col3 col5 col7]=(A1 A3 A5 A7)
+ psubd xmm3,xmm4 ; xmm3=data1[col0 **** **** ****]=(B0 ** ** **)
+ psubd xmm5,xmm0 ; xmm5=data1[col1 col3 col5 col7]=(B1 B3 B5 B7)
+
+ movdqa xmm2,[GOTOFF(ebx,PD_DESCALE_P1_2)] ; xmm2=[PD_DESCALE_P1_2]
+
+ punpckldq xmm6,xmm3 ; xmm6=(A0 B0 ** **)
+
+ movdqa xmm7,xmm1
+ punpcklqdq xmm1,xmm5 ; xmm1=(A1 A3 B1 B3)
+ punpckhqdq xmm7,xmm5 ; xmm7=(A5 A7 B5 B7)
+
+ paddd xmm6,xmm2
+ psrad xmm6,DESCALE_P1_2
+
+ paddd xmm1,xmm2
+ paddd xmm7,xmm2
+ psrad xmm1,DESCALE_P1_2
+ psrad xmm7,DESCALE_P1_2
+
+ ; -- Prefetch the next coefficient block
+
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 0*32]
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 1*32]
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 2*32]
+ prefetchnta [esi + DCTSIZE2*SIZEOF_JCOEF + 3*32]
+
+ ; ---- Pass 2: process rows, store into output array.
+
+ mov edi, JSAMPARRAY [output_buf(ebp)] ; (JSAMPROW *)
+ mov eax, JDIMENSION [output_col(ebp)]
+
+ ; | input:| result:|
+ ; | A0 B0 | |
+ ; | A1 B1 | C0 C1 |
+ ; | A3 B3 | D0 D1 |
+ ; | A5 B5 | |
+ ; | A7 B7 | |
+
+ ; -- Odd part
+
+ packssdw xmm1,xmm1 ; xmm1=(A1 A3 B1 B3 A1 A3 B1 B3)
+ packssdw xmm7,xmm7 ; xmm7=(A5 A7 B5 B7 A5 A7 B5 B7)
+ pmaddwd xmm1,[GOTOFF(ebx,PW_F362_MF127)]
+ pmaddwd xmm7,[GOTOFF(ebx,PW_F085_MF072)]
+
+ paddd xmm1,xmm7 ; xmm1=tmp0[row0 row1 row0 row1]
+
+ ; -- Even part
+
+ pslld xmm6,(CONST_BITS+2) ; xmm6=tmp10[row0 row1 **** ****]
+
+ ; -- Final output stage
+
+ movdqa xmm4,xmm6
+ paddd xmm6,xmm1 ; xmm6=data0[row0 row1 **** ****]=(C0 C1 ** **)
+ psubd xmm4,xmm1 ; xmm4=data1[row0 row1 **** ****]=(D0 D1 ** **)
+
+ punpckldq xmm6,xmm4 ; xmm6=(C0 D0 C1 D1)
+
+ paddd xmm6,[GOTOFF(ebx,PD_DESCALE_P2_2)]
+ psrad xmm6,DESCALE_P2_2
+
+ packssdw xmm6,xmm6 ; xmm6=(C0 D0 C1 D1 C0 D0 C1 D1)
+ packsswb xmm6,xmm6 ; xmm6=(C0 D0 C1 D1 C0 D0 C1 D1 ..)
+ paddb xmm6,[GOTOFF(ebx,PB_CENTERJSAMP)]
+
+ pextrw ebx,xmm6,0x00 ; ebx=(C0 D0 -- --)
+ pextrw ecx,xmm6,0x01 ; ecx=(C1 D1 -- --)
+
+ mov edx, JSAMPROW [edi+0*SIZEOF_JSAMPROW]
+ mov esi, JSAMPROW [edi+1*SIZEOF_JSAMPROW]
+ mov WORD [edx+eax*SIZEOF_JSAMPLE], bx
+ mov WORD [esi+eax*SIZEOF_JSAMPLE], cx
+
+ pop edi
+ pop esi
+; pop edx ; need not be preserved
+; pop ecx ; need not be preserved
+ pop ebx
+ pop ebp
+ ret
+
#define JSIMD_MMX 0x01
#define JSIMD_3DNOW 0x02
#define JSIMD_SSE 0x04
+#define JSIMD_SSE2 0x08
/* Short forms of external names for systems with brain-damaged linkers. */
#define jpeg_simd_cpu_support jSiCpuSupport
#define jsimd_rgb_ycc_convert_mmx jSRGBYCCM
#define jsimd_ycc_rgb_convert_mmx jSYCCRGBM
+#define jconst_rgb_ycc_convert_sse2 jSCRGBYCCS2
+#define jsimd_rgb_ycc_convert_sse2 jSRGBYCCS2
+#define jconst_ycc_rgb_convert_sse2 jSCYCCRGBS2
+#define jsimd_ycc_rgb_convert_sse2 jSYCCRGBS2
#define jsimd_h2v2_downsample_mmx jSDnH2V2M
#define jsimd_h2v1_downsample_mmx jSDnH2V1M
+#define jsimd_h2v2_downsample_sse2 jSDnH2V2S2
+#define jsimd_h2v1_downsample_sse2 jSDnH2V1S2
#define jsimd_h2v2_upsample_mmx jSUpH2V2M
#define jsimd_h2v1_upsample_mmx jSUpH2V1M
#define jsimd_h2v2_fancy_upsample_mmx jSFUpH2V2M
#define jsimd_h2v1_fancy_upsample_mmx jSFUpH2V1M
#define jsimd_h2v2_merged_upsample_mmx jSMUpH2V2M
#define jsimd_h2v1_merged_upsample_mmx jSMUpH2V1M
+#define jsimd_h2v2_upsample_sse2 jSUpH2V2S2
+#define jsimd_h2v1_upsample_sse2 jSUpH2V1S2
+#define jconst_fancy_upsample_sse2 jSCFUpS2
+#define jsimd_h2v2_fancy_upsample_sse2 jSFUpH2V2S2
+#define jsimd_h2v1_fancy_upsample_sse2 jSFUpH2V1S2
+#define jconst_merged_upsample_sse2 jSCMUpS2
+#define jsimd_h2v2_merged_upsample_sse2 jSMUpH2V2S2
+#define jsimd_h2v1_merged_upsample_sse2 jSMUpH2V1S2
#define jsimd_convsamp_mmx jSConvM
+#define jsimd_convsamp_sse2 jSConvS2
#define jsimd_convsamp_float_3dnow jSConvF3D
#define jsimd_convsamp_float_sse jSConvFS
+#define jsimd_convsamp_float_sse2 jSConvFS2
#define jsimd_fdct_islow_mmx jSFDMIS
#define jsimd_fdct_ifast_mmx jSFDMIF
+#define jconst_fdct_islow_sse2 jSCFDS2IS
+#define jsimd_fdct_islow_sse2 jSFDS2IS
+#define jconst_fdct_ifast_sse2 jSCFDS2IF
+#define jsimd_fdct_ifast_sse2 jSFDS2IF
#define jsimd_fdct_float_3dnow jSFD3DF
#define jconst_fdct_float_sse jSCFDSF
#define jsimd_fdct_float_sse jSFDSF
#define jsimd_quantize_mmx jSQuantM
+#define jsimd_quantize_sse2 jSQuantS2
#define jsimd_quantize_float_3dnow jSQuantF3D
#define jsimd_quantize_float_sse jSQuantFS
+#define jsimd_quantize_float_sse2 jSQuantFS2
#define jsimd_idct_2x2_mmx jSIDM22
#define jsimd_idct_4x4_mmx jSIDM44
+#define jconst_idct_red_sse2 jSCIDS2R
+#define jsimd_idct_2x2_sse2 jSIDS222
+#define jsimd_idct_4x4_sse2 jSIDS244
#define jsimd_idct_islow_mmx jSIDMIS
#define jsimd_idct_ifast_mmx jSIDMIF
+#define jconst_idct_islow_sse2 jSCIDS2IS
+#define jsimd_idct_islow_sse2 jSIDS2IS
+#define jconst_idct_ifast_sse2 jSCIDS2IF
+#define jsimd_idct_ifast_sse2 jSIDS2IF
#define jsimd_idct_float_3dnow jSID3DF
#define jconst_fdct_float_sse jSCIDSF
#define jsimd_idct_float_sse jSIDSF
+#define jconst_fdct_float_sse2 jSCIDS2F
+#define jsimd_idct_float_sse2 jSIDS2F
#endif /* NEED_SHORT_EXTERNAL_NAMES */
/* SIMD Ext: retrieve SIMD/CPU information */
JSAMPIMAGE input_buf, JDIMENSION input_row,
JSAMPARRAY output_buf, int num_rows));
+extern const int jconst_rgb_ycc_convert_sse2[];
+EXTERN(void) jsimd_rgb_ycc_convert_sse2
+ JPP((JDIMENSION img_width,
+ JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
+ JDIMENSION output_row, int num_rows));
+extern const int jconst_ycc_rgb_convert_sse2[];
+EXTERN(void) jsimd_ycc_rgb_convert_sse2
+ JPP((JDIMENSION out_width,
+ JSAMPIMAGE input_buf, JDIMENSION input_row,
+ JSAMPARRAY output_buf, int num_rows));
+
/* SIMD Downsample */
EXTERN(void) jsimd_h2v2_downsample_mmx
JPP((JDIMENSION image_width, int max_v_samp_factor,
JDIMENSION v_samp_factor, JDIMENSION width_blocks,
JSAMPARRAY input_data, JSAMPARRAY output_data));
+EXTERN(void) jsimd_h2v2_downsample_sse2
+ JPP((JDIMENSION image_width, int max_v_samp_factor,
+ JDIMENSION v_samp_factor, JDIMENSION width_blocks,
+ JSAMPARRAY input_data, JSAMPARRAY output_data));
+EXTERN(void) jsimd_h2v1_downsample_sse2
+ JPP((JDIMENSION image_width, int max_v_samp_factor,
+ JDIMENSION v_samp_factor, JDIMENSION width_blocks,
+ JSAMPARRAY input_data, JSAMPARRAY output_data));
+
/* SIMD Upsample */
EXTERN(void) jsimd_h2v2_upsample_mmx
JPP((int max_v_samp_factor, JDIMENSION output_width,
JPP((JDIMENSION output_width, JSAMPIMAGE input_buf,
JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf));
+EXTERN(void) jsimd_h2v2_upsample_sse2
+ JPP((int max_v_samp_factor, JDIMENSION output_width,
+ JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr));
+EXTERN(void) jsimd_h2v1_upsample_sse2
+ JPP((int max_v_samp_factor, JDIMENSION output_width,
+ JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr));
+
+extern const int jconst_fancy_upsample_sse2[];
+EXTERN(void) jsimd_h2v2_fancy_upsample_sse2
+ JPP((int max_v_samp_factor, JDIMENSION downsampled_width,
+ JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr));
+EXTERN(void) jsimd_h2v1_fancy_upsample_sse2
+ JPP((int max_v_samp_factor, JDIMENSION downsampled_width,
+ JSAMPARRAY input_data, JSAMPARRAY * output_data_ptr));
+
+extern const int jconst_merged_upsample_sse2[];
+EXTERN(void) jsimd_h2v2_merged_upsample_sse2
+ JPP((JDIMENSION output_width, JSAMPIMAGE input_buf,
+ JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf));
+EXTERN(void) jsimd_h2v1_merged_upsample_sse2
+ JPP((JDIMENSION output_width, JSAMPIMAGE input_buf,
+ JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf));
+
/* SIMD Sample Conversion */
EXTERN(void) jsimd_convsamp_mmx JPP((JSAMPARRAY sample_data,
JDIMENSION start_col,
DCTELEM * workspace));
+EXTERN(void) jsimd_convsamp_sse2 JPP((JSAMPARRAY sample_data,
+ JDIMENSION start_col,
+ DCTELEM * workspace));
+
EXTERN(void) jsimd_convsamp_float_3dnow JPP((JSAMPARRAY sample_data,
JDIMENSION start_col,
FAST_FLOAT * workspace));
JDIMENSION start_col,
FAST_FLOAT * workspace));
+EXTERN(void) jsimd_convsamp_float_sse2 JPP((JSAMPARRAY sample_data,
+ JDIMENSION start_col,
+ FAST_FLOAT * workspace));
+
/* SIMD Forward DCT */
EXTERN(void) jsimd_fdct_islow_mmx JPP((DCTELEM * data));
EXTERN(void) jsimd_fdct_ifast_mmx JPP((DCTELEM * data));
+extern const int jconst_fdct_ifast_sse2[];
+EXTERN(void) jsimd_fdct_islow_sse2 JPP((DCTELEM * data));
+extern const int jconst_fdct_islow_sse2[];
+EXTERN(void) jsimd_fdct_ifast_sse2 JPP((DCTELEM * data));
+
EXTERN(void) jsimd_fdct_float_3dnow JPP((FAST_FLOAT * data));
extern const int jconst_fdct_float_sse[];
DCTELEM * divisors,
DCTELEM * workspace));
+EXTERN(void) jsimd_quantize_sse2 JPP((JCOEFPTR coef_block,
+ DCTELEM * divisors,
+ DCTELEM * workspace));
+
EXTERN(void) jsimd_quantize_float_3dnow JPP((JCOEFPTR coef_block,
FAST_FLOAT * divisors,
FAST_FLOAT * workspace));
FAST_FLOAT * divisors,
FAST_FLOAT * workspace));
+EXTERN(void) jsimd_quantize_float_sse2 JPP((JCOEFPTR coef_block,
+ FAST_FLOAT * divisors,
+ FAST_FLOAT * workspace));
+
/* SIMD Reduced Inverse DCT */
EXTERN(void) jsimd_idct_2x2_mmx JPP((void * dct_table,
JCOEFPTR coef_block,
JSAMPARRAY output_buf,
JDIMENSION output_col));
+extern const int jconst_idct_red_sse2[];
+EXTERN(void) jsimd_idct_2x2_sse2 JPP((void * dct_table,
+ JCOEFPTR coef_block,
+ JSAMPARRAY output_buf,
+ JDIMENSION output_col));
+EXTERN(void) jsimd_idct_4x4_sse2 JPP((void * dct_table,
+ JCOEFPTR coef_block,
+ JSAMPARRAY output_buf,
+ JDIMENSION output_col));
+
/* SIMD Inverse DCT */
EXTERN(void) jsimd_idct_islow_mmx JPP((void * dct_table,
JCOEFPTR coef_block,
JSAMPARRAY output_buf,
JDIMENSION output_col));
+extern const int jconst_idct_islow_sse2[];
+EXTERN(void) jsimd_idct_islow_sse2 JPP((void * dct_table,
+ JCOEFPTR coef_block,
+ JSAMPARRAY output_buf,
+ JDIMENSION output_col));
+extern const int jconst_idct_ifast_sse2[];
+EXTERN(void) jsimd_idct_ifast_sse2 JPP((void * dct_table,
+ JCOEFPTR coef_block,
+ JSAMPARRAY output_buf,
+ JDIMENSION output_col));
+
EXTERN(void) jsimd_idct_float_3dnow JPP((void * dct_table,
JCOEFPTR coef_block,
JSAMPARRAY output_buf,
JSAMPARRAY output_buf,
JDIMENSION output_col));
+extern const int jconst_idct_float_sse2[];
+EXTERN(void) jsimd_idct_float_sse2 JPP((void * dct_table,
+ JCOEFPTR coef_block,
+ JSAMPARRAY output_buf,
+ JDIMENSION output_col));
+
definev(JSIMD_MMX)
definev(JSIMD_3DNOW)
definev(JSIMD_SSE)
+definev(JSIMD_SSE2)
; Short forms of external names for systems with brain-damaged linkers.
;
definev(jpeg_simd_cpu_support)
definev(jsimd_rgb_ycc_convert_mmx)
definev(jsimd_ycc_rgb_convert_mmx)
+definev(jconst_rgb_ycc_convert_sse2)
+definev(jsimd_rgb_ycc_convert_sse2)
+definev(jconst_ycc_rgb_convert_sse2)
+definev(jsimd_ycc_rgb_convert_sse2)
definev(jsimd_h2v2_downsample_mmx)
definev(jsimd_h2v1_downsample_mmx)
+definev(jsimd_h2v2_downsample_sse2)
+definev(jsimd_h2v1_downsample_sse2)
definev(jsimd_h2v2_upsample_mmx)
definev(jsimd_h2v1_upsample_mmx)
definev(jsimd_h2v1_fancy_upsample_mmx)
definev(jsimd_h2v2_fancy_upsample_mmx)
definev(jsimd_h2v1_merged_upsample_mmx)
definev(jsimd_h2v2_merged_upsample_mmx)
+definev(jsimd_h2v2_upsample_sse2)
+definev(jsimd_h2v1_upsample_sse2)
+definev(jconst_fancy_upsample_sse2)
+definev(jsimd_h2v1_fancy_upsample_sse2)
+definev(jsimd_h2v2_fancy_upsample_sse2)
+definev(jconst_merged_upsample_sse2)
+definev(jsimd_h2v1_merged_upsample_sse2)
+definev(jsimd_h2v2_merged_upsample_sse2)
definev(jsimd_convsamp_mmx)
+definev(jsimd_convsamp_sse2)
definev(jsimd_convsamp_float_3dnow)
definev(jsimd_convsamp_float_sse)
+definev(jsimd_convsamp_float_sse2)
definev(jsimd_fdct_islow_mmx)
definev(jsimd_fdct_ifast_mmx)
+definev(jconst_fdct_islow_sse2)
+definev(jsimd_fdct_islow_sse2)
+definev(jconst_fdct_ifast_sse2)
+definev(jsimd_fdct_ifast_sse2)
definev(jsimd_fdct_float_3dnow)
definev(jconst_fdct_float_sse)
definev(jsimd_fdct_float_sse)
definev(jsimd_quantize_mmx)
+definev(jsimd_quantize_sse2)
definev(jsimd_quantize_float_3dnow)
definev(jsimd_quantize_float_sse)
+definev(jsimd_quantize_float_sse2)
definev(jsimd_idct_2x2_mmx)
definev(jsimd_idct_4x4_mmx)
+definev(jconst_idct_red_sse2)
+definev(jsimd_idct_2x2_sse2)
+definev(jsimd_idct_4x4_sse2)
definev(jsimd_idct_islow_mmx)
definev(jsimd_idct_ifast_mmx)
+definev(jconst_idct_islow_sse2)
+definev(jsimd_idct_islow_sse2)
+definev(jconst_idct_ifast_sse2)
+definev(jsimd_idct_ifast_sse2)
definev(jsimd_idct_float_3dnow)
definev(jconst_idct_float_sse)
definev(jsimd_idct_float_sse)
+definev(jconst_idct_float_sse2)
+definev(jsimd_idct_float_sse2)
#endif /* NEED_SHORT_EXTERNAL_NAMES */
jz short .no_sse
or edi, byte JSIMD_SSE
.no_sse:
+ test eax, 1<<26 ; bit26:SSE2
+ jz short .no_sse2
+ or edi, byte JSIMD_SSE2
+.no_sse2:
; Check for 3DNow! instruction support
mov eax, 0x80000000
%define SIZEOF_XMMWORD SIZEOF_OWORD ; sizeof(XMMWORD)
%define XMMWORD_BIT OWORD_BIT ; sizeof(XMMWORD)*BYTE_BIT
+; Similar hacks for when we load a dword or MMWORD into an xmm# register
+%define XMM_DWORD
+%define XMM_MMWORD
+
%define SIZEOF_BYTE 1 ; sizeof(BYTE)
%define SIZEOF_WORD 2 ; sizeof(WORD)
%define SIZEOF_DWORD 4 ; sizeof(DWORD)
projects / tigervnc.git / commitdiff