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gimp/app/composite/gimp-composite-sse2.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Gimp image compositing
* Copyright (C) 2003 Helvetix Victorinox, a pseudonym, <helvetix@gimp.org>
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdio.h>
#include <glib-object.h>
#include "base/base-types.h"
#include "gimp-composite.h"
#include "gimp-composite-sse2.h"
#ifdef COMPILE_SSE2_IS_OKAY
#include "gimp-composite-x86.h"
static const guint32 rgba8_alpha_mask_128[4] = { 0xFF000000, 0xFF000000, 0xFF000000, 0xFF000000 };
static const guint32 rgba8_b1_128[4] = { 0x01010101, 0x01010101, 0x01010101, 0x01010101 };
static const guint32 rgba8_b255_128[4] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
static const guint32 rgba8_w1_128[4] = { 0x00010001, 0x00010001, 0x00010001, 0x00010001 };
static const guint32 rgba8_w2_128[4] = { 0x00020002, 0x00020002, 0x00020002, 0x00020002 };
static const guint32 rgba8_w128_128[4] = { 0x00800080, 0x00800080, 0x00800080, 0x00800080 };
static const guint32 rgba8_w256_128[4] = { 0x01000100, 0x01000100, 0x01000100, 0x01000100 };
static const guint32 rgba8_w255_128[4] = { 0X00FF00FF, 0X00FF00FF, 0X00FF00FF, 0X00FF00FF };
static const guint32 va8_alpha_mask_128[4] = { 0xFF00FF00, 0xFF00FF00, 0xFF00FF00, 0xFF00FF00 };
static const guint32 va8_b255_128[4] = { 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF };
static const guint32 va8_w1_128[4] = { 0x00010001, 0x00010001, 0x00010001, 0x00010001 };
static const guint32 va8_w255_128[4] = { 0x00FF00FF, 0x00FF00FF, 0x00FF00FF, 0x00FF00FF };
static const guint32 rgba8_alpha_mask_64[2] = { 0xFF000000, 0xFF000000 };
static const guint32 rgba8_b1_64[2] = { 0x01010101, 0x01010101 };
static const guint32 rgba8_b255_64[2] = { 0xFFFFFFFF, 0xFFFFFFFF };
static const guint32 rgba8_w1_64[2] = { 0x00010001, 0x00010001 };
static const guint32 rgba8_w2_64[2] = { 0x00020002, 0x00020002 };
static const guint32 rgba8_w128_64[2] = { 0x00800080, 0x00800080 };
static const guint32 rgba8_w256_64[2] = { 0x01000100, 0x01000100 };
static const guint32 rgba8_w255_64[2] = { 0X00FF00FF, 0X00FF00FF };
static const guint32 va8_alpha_mask_64[2] = { 0xFF00FF00, 0xFF00FF00 };
static const guint32 va8_b255_64[2] = { 0xFFFFFFFF, 0xFFFFFFFF };
static const guint32 va8_w1_64[2] = { 0x00010001, 0x00010001 };
static const guint32 va8_w255_64[2] = { 0x00FF00FF, 0x00FF00FF };
void
debug_display_sse (void)
{
#define mask32(x) ((x)& (unsigned long long) 0xFFFFFFFF)
#define print128(reg) { \
unsigned long long reg[2]; \
asm("movdqu %%" #reg ",%0" : "=m" (reg)); \
printf(#reg"=%08llx %08llx", mask32(reg[0]>>32), mask32(reg[0])); \
printf(" %08llx %08llx", mask32(reg[1]>>32), mask32(reg[1])); \
}
printf("--------------------------------------------\n");
print128(xmm0); printf(" "); print128(xmm1); printf("\n");
print128(xmm2); printf(" "); print128(xmm3); printf("\n");
print128(xmm4); printf(" "); print128(xmm5); printf("\n");
print128(xmm6); printf(" "); print128(xmm7); printf("\n");
printf("--------------------------------------------\n");
}
void
gimp_composite_addition_rgba8_rgba8_rgba8_sse2 (GimpCompositeContext *_op)
{
uint64 *d;
uint64 *a;
uint64 *b;
uint128 *D = (uint128 *) _op->D;
uint128 *A = (uint128 *) _op->A;
uint128 *B = (uint128 *) _op->B;
gulong n_pixels = _op->n_pixels;
asm volatile (" movdqu %0,%%xmm0\n"
"\tmovq %1,%%mm0"
: /* empty */
: "m" (*rgba8_alpha_mask_128), "m" (*rgba8_alpha_mask_64)
: "%xmm0", "%mm0");
for (; n_pixels >= 4; n_pixels -= 4)
{
asm volatile (" movdqu %1,%%xmm2\n"
"\tmovdqu %2,%%xmm3\n"
"\tmovdqu %%xmm2,%%xmm4\n"
"\tpaddusb %%xmm3,%%xmm4\n"
"\tmovdqu %%xmm0,%%xmm1\n"
"\tpandn %%xmm4,%%xmm1\n"
"\tpminub %%xmm3,%%xmm2\n"
"\tpand %%xmm0,%%xmm2\n"
"\tpor %%xmm2,%%xmm1\n"
"\tmovdqu %%xmm1,%0\n"
: "=m" (*D)
: "m" (*A), "m" (*B)
: "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "%xmm7");
A++;
B++;
D++;
}
a = (uint64 *) A;
b = (uint64 *) B;
d = (uint64 *) D;
for (; n_pixels >= 2; n_pixels -= 2)
{
asm volatile (" movq %1,%%mm2\n"
"\tmovq %2,%%mm3\n"
"\tmovq %%mm2,%%mm4\n"
"\tpaddusb %%mm3,%%mm4\n"
"\tmovq %%mm0,%%mm1\n"
"\tpandn %%mm4,%%mm1\n"
"\tpminub %%mm3,%%mm2\n"
"\tpand %%mm0,%%mm2\n"
"\tpor %%mm2,%%mm1\n"
"\tmovntq %%mm1,%0\n"
: "=m" (*d)
: "m" (*a), "m" (*b)
: "%mm0", "%mm1", "%mm2", "%mm3", "%mm4", "%mm5", "%mm6", "%mm7");
a++;
b++;
d++;
}
if (n_pixels > 0)
{
asm volatile (" movd %1,%%mm2\n"
"\tmovd %2,%%mm3\n"
"\tmovq %%mm2,%%mm4\n"
"\tpaddusb %%mm3,%%mm4\n"
"\tmovq %%mm0,%%mm1\n"
"\tpandn %%mm4,%%mm1\n"
"\tpminub %%mm3,%%mm2\n"
"\tpand %%mm0,%%mm2\n"
"\tpor %%mm2,%%mm1\n"
"\tmovd %%mm1,%0\n"
: "=m" (*d)
: "m" (*a), "m" (*b)
: "%mm0", "%mm1", "%mm2", "%mm3", "%mm4", "%mm5", "%mm6", "%mm7");
}
asm("emms");
}
void
gimp_composite_darken_rgba8_rgba8_rgba8_sse2 (GimpCompositeContext *_op)
{
uint64 *d;
uint64 *a;
uint64 *b;
uint128 *D = (uint128 *) _op->D;
uint128 *A = (uint128 *) _op->A;
uint128 *B = (uint128 *) _op->B;
gulong n_pixels = _op->n_pixels;
for (; n_pixels >= 4; n_pixels -= 4)
{
asm volatile (" movdqu %1,%%xmm2\n"
"\tmovdqu %2,%%xmm3\n"
"\tpminub %%xmm3,%%xmm2\n"
"\tmovdqu %%xmm2,%0\n"
: "=m" (*D)
: "m" (*A), "m" (*B)
: "%xmm2", "%xmm3");
A++;
B++;
D++;
}
a = (uint64 *) A;
b = (uint64 *) B;
d = (uint64 *) D;
for (; n_pixels >= 2; n_pixels -= 2)
{
asm volatile (" movq %1,%%mm2\n"
"\tmovq %2,%%mm3\n"
"\tpminub %%mm3,%%mm2\n"
"\tmovntq %%mm2,%0\n"
: "=m" (*d)
: "m" (*a), "m" (*b)
: "%mm2", "%mm3");
a++;
b++;
d++;
}
if (n_pixels > 0)
{
asm volatile (" movd %1, %%mm2\n"
"\tmovd %2, %%mm3\n"
"\tpminub %%mm3, %%mm2\n"
"\tmovd %%mm2, %0\n"
: "=m" (*d)
: "m" (*a), "m" (*b)
: "%mm2", "%mm3", "%mm4");
}
asm("emms");
}
void
gimp_composite_difference_rgba8_rgba8_rgba8_sse2 (GimpCompositeContext *_op)
{
uint64 *d;
uint64 *a;
uint64 *b;
uint128 *D = (uint128 *) _op->D;
uint128 *A = (uint128 *) _op->A;
uint128 *B = (uint128 *) _op->B;
gulong n_pixels = _op->n_pixels;
asm volatile (" movq %0,%%mm0\n"
"\tmovdqu %1,%%xmm0"
: /* */
: "m" (*rgba8_alpha_mask_64), "m" (*rgba8_alpha_mask_128)
: "%mm0", "%xmm0");
for (; n_pixels >= 4; n_pixels -= 4)
{
asm volatile (" movdqu %1,%%xmm2\n"
"\tmovdqu %2,%%xmm3\n"
"\tmovdqu %%xmm2,%%xmm4\n"
"\tmovdqu %%xmm3,%%xmm5\n"
"\tpsubusb %%xmm3,%%xmm4\n"
"\tpsubusb %%xmm2,%%xmm5\n"
"\tpaddb %%xmm5,%%xmm4\n"
"\tmovdqu %%xmm0,%%xmm1\n"
"\tpandn %%xmm4,%%xmm1\n"
"\tpminub %%xmm3,%%xmm2\n"
"\tpand %%xmm0,%%xmm2\n"
"\tpor %%xmm2,%%xmm1\n"
"\tmovdqu %%xmm1,%0\n"
: "=m" (*D)
: "m" (*A), "m" (*B)
: "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5");
A++;
B++;
D++;
}
a = (uint64 *) A;
b = (uint64 *) B;
d = (uint64 *) D;
for (; n_pixels >= 2; n_pixels -= 2)
{
asm volatile (" movq %1, %%mm2\n"
"\tmovq %2, %%mm3\n"
"\tmovq %%mm2, %%mm4\n"
"\tmovq %%mm3, %%mm5\n"
"\tpsubusb %%mm3, %%mm4\n"
"\tpsubusb %%mm2, %%mm5\n"
"\tpaddb %%mm5, %%mm4\n"
"\tmovq %%mm0, %%mm1\n"
"\tpandn %%mm4, %%mm1\n"
"\tpminub %%mm3, %%mm2\n"
"\tpand %%mm0, %%mm2\n"
"\tpor %%mm2, %%mm1\n"
"\tmovntq %%mm1, %0\n"
: "=m" (*d)
: "m" (*a), "m" (*b)
: "%mm1", "%mm2", "%mm3", "%mm4", "%mm5");
a++;
b++;
d++;
}
if (n_pixels > 0)
{
asm volatile (" movd %1, %%mm2\n"
"\tmovd %2, %%mm3\n"
"\tmovq %%mm2, %%mm4\n"
"\tmovq %%mm3, %%mm5\n"
"\tpsubusb %%mm3, %%mm4\n"
"\tpsubusb %%mm2, %%mm5\n"
"\tpaddb %%mm5, %%mm4\n"
"\tmovq %%mm0, %%mm1\n"
"\tpandn %%mm4, %%mm1\n"
"\tpminub %%mm3, %%mm2\n"
"\tpand %%mm0, %%mm2\n"
"\tpor %%mm2, %%mm1\n"
"\tmovd %%mm1, %0\n"
: "=m" (*d)
: "m" (*a), "m" (*b)
: "%mm1", "%mm2", "%mm3", "%mm4", "%mm5");
}
asm("emms");
}
void
gimp_composite_grain_extract_rgba8_rgba8_rgba8_sse2 (GimpCompositeContext *_op)
{
uint64 *d;
uint64 *a;
uint64 *b;
uint128 *D = (uint128 *) _op->D;
uint128 *A = (uint128 *) _op->A;
uint128 *B = (uint128 *) _op->B;
gulong n_pixels = _op->n_pixels;
asm volatile (" movq %0,%%mm0\n"
"\tpxor %%mm6,%%mm6\n"
"\tmovq %1,%%mm7\n"
"\tmovdqu %2,%%xmm0\n"
"\tpxor %%xmm6,%%xmm6\n"
"\tmovdqu %3,%%xmm7\n"
: /* empty */
: "m" (*rgba8_alpha_mask_64), "m" (*rgba8_w128_64), "m" (*rgba8_alpha_mask_128), "m" (*rgba8_w128_128)
: "%mm0", "%mm6", "%mm7", "%xmm0", "%xmm6", "%xmm7");
for (; n_pixels >= 4; n_pixels -= 4)
{
asm volatile (" movdqu %1,%%xmm2\n"
"\tmovdqu %2,%%xmm3\n"
xmm_low_bytes_to_words(xmm2,xmm4,xmm6)
xmm_low_bytes_to_words(xmm3,xmm5,xmm6)
"\tpsubw %%xmm5,%%xmm4\n"
"\tpaddw %%xmm7,%%xmm4\n"
"\tmovdqu %%xmm4,%%xmm1\n"
xmm_high_bytes_to_words(xmm2,xmm4,xmm6)
xmm_high_bytes_to_words(xmm3,xmm5,xmm6)
"\tpsubw %%xmm5,%%xmm4\n"
"\tpaddw %%xmm7,%%xmm4\n"
"\tpackuswb %%xmm4,%%xmm1\n"
"\tmovdqu %%xmm1,%%xmm4\n"
"\tmovdqu %%xmm0,%%xmm1\n"
"\tpandn %%xmm4,%%xmm1\n"
"\tpminub %%xmm3,%%xmm2\n"
"\tpand %%xmm0,%%xmm2\n"
"\tpor %%xmm2,%%xmm1\n"
"\tmovdqu %%xmm1,%0\n"
: "=m" (*D)
: "m" (*A), "m" (*B)
: "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5");
A++;
B++;
D++;
}
a = (uint64 *) A;
b = (uint64 *) B;
d = (uint64 *) D;
for (; n_pixels >= 2; n_pixels -= 2)
{
asm volatile (" movq %1,%%mm2\n"
"\tmovq %2,%%mm3\n"
mmx_low_bytes_to_words(mm2,mm4,mm6)
mmx_low_bytes_to_words(mm3,mm5,mm6)
"\tpsubw %%mm5,%%mm4\n"
"\tpaddw %%mm7,%%mm4\n"
"\tmovq %%mm4,%%mm1\n"
mmx_high_bytes_to_words(mm2,mm4,mm6)
mmx_high_bytes_to_words(mm3,mm5,mm6)
"\tpsubw %%mm5,%%mm4\n"
"\tpaddw %%mm7,%%mm4\n"
"\tpackuswb %%mm4,%%mm1\n"
"\tmovq %%mm1,%%mm4\n"
"\tmovq %%mm0,%%mm1\n"
"\tpandn %%mm4,%%mm1\n"
"\tpminub %%mm3,%%mm2\n"
"\tpand %%mm0,%%mm2\n"
"\tpor %%mm2,%%mm1\n"
"\tmovntq %%mm1,%0\n"
: "=m" (*d)
: "m" (*a), "m" (*b)
: "%mm1", "%mm2", "%mm3", "%mm4", "%mm5");
a++;
b++;
d++;
}
if (n_pixels > 0)
{
asm volatile (" movd %1, %%mm2\n"
"\tmovd %2, %%mm3\n"
mmx_low_bytes_to_words(mm2,mm4,mm6)
mmx_low_bytes_to_words(mm3,mm5,mm6)
"\tpsubw %%mm5, %%mm4\n"
"\tpaddw %%mm7, %%mm4\n"
"\tmovq %%mm4, %%mm1\n"
"\tpackuswb %%mm6, %%mm1\n"
"\tmovq %%mm1, %%mm4\n"
"\tmovq %%mm0, %%mm1\n"
"\tpandn %%mm4, %%mm1\n"
"\tpminub %%mm3, %%mm2\n"
"\tpand %%mm0, %%mm2\n"
"\tpor %%mm2, %%mm1\n"
"\tmovd %%mm1, %0\n"
: "=m" (*d)
: "m" (*a), "m" (*b)
: "%mm1", "%mm2", "%mm3", "%mm4", "%mm5");
}
asm("emms");
}
void
gimp_composite_lighten_rgba8_rgba8_rgba8_sse2 (GimpCompositeContext *_op)
{
uint64 *d;
uint64 *a;
uint64 *b;
uint128 *D = (uint128 *) _op->D;
uint128 *A = (uint128 *) _op->A;
uint128 *B = (uint128 *) _op->B;
gulong n_pixels = _op->n_pixels;
asm volatile (" movdqu %0,%%xmm0\n"
"\tmovq %1,%%mm0"
: /* empty */
: "m" (*rgba8_alpha_mask_128), "m" (*rgba8_alpha_mask_64)
: "%xmm0", "%mm0");
for (; n_pixels >= 4; n_pixels -= 4)
{
asm volatile (" movdqu %1, %%xmm2\n"
"\tmovdqu %2, %%xmm3\n"
"\tmovdqu %%xmm2, %%xmm4\n"
"\tpmaxub %%xmm3, %%xmm4\n"
"\tmovdqu %%xmm0, %%xmm1\n"
"\tpandn %%xmm4, %%xmm1\n"
"\tpminub %%xmm2, %%xmm3\n"
"\tpand %%xmm0, %%xmm3\n"
"\tpor %%xmm3, %%xmm1\n"
"\tmovdqu %%xmm1, %0\n"
: "=m" (*D)
: "m" (*A), "m" (*B)
: "%xmm1", "%xmm2", "%xmm3", "%xmm4");
A++;
B++;
D++;
}
a = (uint64 *) A;
b = (uint64 *) B;
d = (uint64 *) D;
for (; n_pixels >= 2; n_pixels -= 2)
{
asm volatile (" movq %1, %%mm2\n"
"\tmovq %2, %%mm3\n"
"\tmovq %%mm2, %%mm4\n"
"\tpmaxub %%mm3, %%mm4\n"
"\tmovq %%mm0, %%mm1\n"
"\tpandn %%mm4, %%mm1\n"
"\tpminub %%mm2, %%mm3\n"
"\tpand %%mm0, %%mm3\n"
"\tpor %%mm3, %%mm1\n"
"\tmovntq %%mm1, %0\n"
: "=m" (*d)
: "m" (*a), "m" (*b)
: "%mm1", "%mm2", "%mm3", "%mm4");
a++;
b++;
d++;
}
if (n_pixels > 0)
{
asm volatile (" movd %1, %%mm2\n"
"\tmovd %2, %%mm3\n"
"\tmovq %%mm2, %%mm4\n"
"\tpmaxub %%mm3, %%mm4\n"
"\tmovq %%mm0, %%mm1\n"
"\tpandn %%mm4, %%mm1\n"
"\tpminub %%mm2, %%mm3\n"
"\tpand %%mm0, %%mm3\n"
"\tpor %%mm3, %%mm1\n"
"\tmovd %%mm1, %0\n"
: "=m" (*d)
: "m" (*a), "m" (*b)
: "%mm1", "%mm2", "%mm3", "%mm4");
}
asm("emms");
}
void
gimp_composite_subtract_rgba8_rgba8_rgba8_sse2 (GimpCompositeContext *_op)
{
uint64 *d;
uint64 *a;
uint64 *b;
uint128 *D = (uint128 *) _op->D;
uint128 *A = (uint128 *) _op->A;
uint128 *B = (uint128 *) _op->B;
gulong n_pixels = _op->n_pixels;
asm volatile (" movq %0,%%mm0\n"
"\tmovdqu %1,%%xmm0\n"
: /* empty */
: "m" (*rgba8_alpha_mask_64), "m" (*rgba8_alpha_mask_128)
: "%mm0", "%xmm0");
for (; n_pixels >= 4; n_pixels -= 4)
{
asm volatile (" movdqu %1,%%xmm2\n"
"\tmovdqu %2,%%xmm3\n"
"\tmovdqu %%xmm2,%%xmm4\n"
"\tpsubusb %%xmm3,%%xmm4\n"
"\tmovdqu %%xmm0,%%xmm1\n"
"\tpandn %%xmm4,%%xmm1\n"
"\tpminub %%xmm3,%%xmm2\n"
"\tpand %%xmm0,%%xmm2\n"
"\tpor %%xmm2,%%xmm1\n"
"\tmovdqu %%xmm1,%0\n"
: "=m" (*D)
: "m" (*A), "m" (*B)
: "%xmm1", "%xmm2", "%xmm3", "%xmm4");
A++;
B++;
D++;
}
a = (uint64 *) A;
b = (uint64 *) B;
d = (uint64 *) D;
for (; n_pixels >= 2; n_pixels -= 2)
{
asm volatile (" movq %1,%%mm2\n"
"\tmovq %2,%%mm3\n"
"\tmovq %%mm2,%%mm4\n"
"\tpsubusb %%mm3,%%mm4\n"
"\tmovq %%mm0,%%mm1\n"
"\tpandn %%mm4,%%mm1\n"
"\tpminub %%mm3,%%mm2\n"
"\tpand %%mm0,%%mm2\n"
"\tpor %%mm2,%%mm1\n"
"\tmovntq %%mm1,%0\n"
: "=m" (*d)
: "m" (*a), "m" (*b)
: "%mm1", "%mm2", "%mm3", "%mm4");
a++;
b++;
d++;
}
if (n_pixels > 0)
{
asm volatile (" movd %1,%%mm2\n"
"\tmovd %2,%%mm3\n"
"\tmovq %%mm2,%%mm4\n"
"\tpsubusb %%mm3,%%mm4\n"
"\tmovq %%mm0,%%mm1\n"
"\tpandn %%mm4,%%mm1\n"
"\tpminub %%mm3,%%mm2\n"
"\tpand %%mm0,%%mm2\n"
"\tpor %%mm2,%%mm1\n"
"\tmovd %%mm1,%0\n"
: "=m" (*d)
: "m" (*a), "m" (*b)
: "%mm1", "%mm2", "%mm3", "%mm4");
}
asm("emms");
}
void
gimp_composite_swap_rgba8_rgba8_rgba8_sse2 (GimpCompositeContext *_op)
{
GimpCompositeContext op = *_op;
/*
* Inhale one whole i686 cache line at once. 128 bytes == 32 rgba8
* pixels == 8 128 bit xmm registers.
*/
for (; op.n_pixels >= 16; op.n_pixels -= 16)
{
asm volatile (" movdqu %0,%%xmm0\n" : :"m" (op.A[0]) : "%xmm0");
asm volatile (" movdqu %0,%%xmm1\n" : :"m" (op.B[0]) : "%xmm1");
asm volatile (" movdqu %0,%%xmm2\n" : :"m" (op.A[1]) : "%xmm2");
asm volatile (" movdqu %0,%%xmm3\n" : :"m" (op.B[1]) : "%xmm3");
asm volatile (" movdqu %0,%%xmm4\n" : :"m" (op.A[2]) : "%xmm4");
asm volatile (" movdqu %0,%%xmm5\n" : :"m" (op.B[2]) : "%xmm5");
asm volatile (" movdqu %0,%%xmm6\n" : :"m" (op.A[3]) : "%xmm6");
asm volatile (" movdqu %0,%%xmm7\n" : :"m" (op.B[3]) : "%xmm7");
asm volatile ("\tmovdqu %%xmm0,%0\n" : "=m" (op.A[0]));
asm volatile ("\tmovdqu %%xmm1,%0\n" : "=m" (op.B[0]));
asm volatile ("\tmovdqu %%xmm2,%0\n" : "=m" (op.A[1]));
asm volatile ("\tmovdqu %%xmm3,%0\n" : "=m" (op.B[1]));
asm volatile ("\tmovdqu %%xmm4,%0\n" : "=m" (op.A[2]));
asm volatile ("\tmovdqu %%xmm5,%0\n" : "=m" (op.B[2]));
asm volatile ("\tmovdqu %%xmm6,%0\n" : "=m" (op.A[3]));
asm volatile ("\tmovdqu %%xmm7,%0\n" : "=m" (op.B[3]));
op.A += 64;
op.B += 64;
}
for (; op.n_pixels >= 4; op.n_pixels -= 4)
{
asm volatile (" movdqu %0,%%xmm2\n"
"\tmovdqu %1,%%xmm3\n"
"\tmovdqu %%xmm3,%0\n"
"\tmovdqu %%xmm2,%1\n"
: "+m" (*op.A), "+m" (*op.B)
: /* empty */
: "%xmm2", "%xmm3");
op.A += 16;
op.B += 16;
}
for (; op.n_pixels >= 2; op.n_pixels -= 2)
{
asm volatile (" movq %0,%%mm2\n"
"\tmovq %1,%%mm3\n"
"\tmovq %%mm3,%0\n"
"\tmovntq %%mm2,%1\n"
: "+m" (*op.A), "+m" (*op.B)
: /* empty */
: "%mm2", "%mm3");
op.A += 8;
op.B += 8;
}
if (op.n_pixels)
{
asm volatile (" movd %0,%%mm2\n"
"\tmovd %1,%%mm3\n"
"\tmovd %%mm3,%0\n"
"\tmovd %%mm2,%1\n"
: "+m" (*op.A), "+m" (*op.B)
: /* empty */
: "%mm3", "%mm4");
}
asm("emms");
}
#endif /* COMPILE_SSE2_IS_OKAY */
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