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* code with new PAVGB for MMX only CPU splited into separate file 

and being compiled in the same way as _avg.h
* PAVG_MMX macros accept also output parameter
* implemented faster put_pixels_xy2, but it has slightly smaller precission.
  But there is not visible difference in the image quality - might be eventualy
  easily switched back (#if 0 #endif)- please check

Originally committed as revision 624 to svn://svn.ffmpeg.org/ffmpeg/trunk
tags/v0.5
Zdenek Kabelac 24 years ago
parent
def60345ad
commit
91abb473fb
2 changed files with 171 additions and 218 deletions
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  1. +32
    -218
      libavcodec/i386/dsputil_mmx.c
  2. +139
    -0
      libavcodec/i386/dsputil_mmx_rnd.h

+ 32
- 218
libavcodec/i386/dsputil_mmx.c View File

@@ -91,22 +91,45 @@ static const uint64_t mm_wtwo __attribute__ ((aligned(8))) = 0x0002000200020002U
// using mm6 as temporary and for the output result
// first argument is unmodifed and second is trashed
// mm7 is supposed to contain 0xfefefefefefefefe
#define PAVG_MMX_NO_RND(rega, regb) \
"movq " #rega ", %%mm6 \n\t"\
"pand " #regb ", %%mm6 \n\t"\
#define PAVGB_MMX_NO_RND(rega, regb, regr) \
"movq " #rega ", " #regr " \n\t"\
"pand " #regb ", " #regr " \n\t"\
"pxor " #rega ", " #regb " \n\t"\
"pand %%mm7, " #regb " \n\t"\
"psrlq $1, " #regb " \n\t"\
"paddb " #regb ", %%mm6 \n\t"
"paddb " #regb ", " #regr " \n\t"

#define PAVG_MMX(rega, regb) \
"movq " #rega ", %%mm6 \n\t"\
"por " #regb ", %%mm6 \n\t"\
#define PAVGB_MMX(rega, regb, regr) \
"movq " #rega ", " #regr " \n\t"\
"por " #regb ", " #regr " \n\t"\
"pxor " #rega ", " #regb " \n\t"\
"pand %%mm7, " #regb " \n\t"\
"psrlq $1, " #regb " \n\t"\
"psubb " #regb ", %%mm6 \n\t"
"psubb " #regb ", " #regr " \n\t"

/***********************************/
/* MMX no rounding */
#define DEF(x, y) x ## _no_rnd_ ## y ##_mmx

#define PAVGB(a, b) PAVGB_MMX_NO_RND(a, b, %%mm6)
#define PAVGBR(a, b, c) PAVGB_MMX_NO_RND(a, b, c)
#include "dsputil_mmx_rnd.h"

#undef DEF
#undef PAVGB
#undef PAVGBR
/***********************************/
/* MMX rounding */

#define DEF(x, y) x ## _ ## y ##_mmx

#define PAVGB(a, b) PAVGB_MMX(a, b, %%mm6)
#define PAVGBR(a, b, c) PAVGB_MMX(a, b, c)
#include "dsputil_mmx_rnd.h"

#undef DEF
#undef PAVGB
#undef PAVGBR

/***********************************/
/* 3Dnow specific */
@@ -316,152 +339,7 @@ static void put_pixels_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int
);
}

// will have to be check if it's better to have bigger
// unrolled code also on Celerons - for now yes
#define LONG_UNROLL 1
static void put_pixels_x2_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
#if 0
UINT8 *p;
const UINT8 *pix;
p = block;
pix = pixels;
MOVQ_ZERO(mm7);
MOVQ_WONE(mm4);
JUMPALIGN();
do {
__asm __volatile(
"movq %1, %%mm0\n\t"
"movq 1%1, %%mm1\n\t"
"movq %%mm0, %%mm2\n\t"
"movq %%mm1, %%mm3\n\t"
"punpcklbw %%mm7, %%mm0\n\t"
"punpcklbw %%mm7, %%mm1\n\t"
"punpckhbw %%mm7, %%mm2\n\t"
"punpckhbw %%mm7, %%mm3\n\t"
"paddusw %%mm1, %%mm0\n\t"
"paddusw %%mm3, %%mm2\n\t"
"paddusw %%mm4, %%mm0\n\t"
"paddusw %%mm4, %%mm2\n\t"
"psrlw $1, %%mm0\n\t"
"psrlw $1, %%mm2\n\t"
"packuswb %%mm2, %%mm0\n\t"
"movq %%mm0, %0\n\t"
:"=m"(*p)
:"m"(*pix)
:"memory");
pix += line_size; p += line_size;
} while (--h);
#else
__asm __volatile(
MOVQ_BFE(%%mm7)
"lea (%3, %3), %%eax \n\t"
".balign 8 \n\t"
"1: \n\t"
"movq (%1), %%mm0 \n\t"
"movq (%1, %3), %%mm2 \n\t"
"movq 1(%1), %%mm1 \n\t"
"movq 1(%1, %3), %%mm3 \n\t"
PAVG_MMX(%%mm0, %%mm1)
"movq %%mm6, (%2) \n\t"
PAVG_MMX(%%mm2, %%mm3)
"movq %%mm6, (%2, %3) \n\t"
"addl %%eax, %1 \n\t"
"addl %%eax, %2 \n\t"
#if LONG_UNROLL
"movq (%1), %%mm0 \n\t"
"movq (%1, %3), %%mm2 \n\t"
"movq 1(%1), %%mm1 \n\t"
"movq 1(%1, %3), %%mm3 \n\t"
PAVG_MMX(%%mm0, %%mm1)
"movq %%mm6, (%2) \n\t"
PAVG_MMX(%%mm2, %%mm3)
"movq %%mm6, (%2, %3) \n\t"
"addl %%eax, %1 \n\t"
"addl %%eax, %2 \n\t"
"subl $4, %0 \n\t"
#else
"subl $2, %0 \n\t"
#endif
"jnz 1b \n\t"
:"+g"(h), "+S"(pixels), "+D"(block)
:"r"(line_size)
:"eax", "memory");
#endif
}

static void put_pixels_y2_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
#if 0
UINT8 *p;
const UINT8 *pix;
p = block;
pix = pixels;
MOVQ_ZERO(mm7);
MOVQ_WONE(mm4);
JUMPALIGN();
do {
__asm __volatile(
"movq %1, %%mm0\n\t"
"movq %2, %%mm1\n\t"
"movq %%mm0, %%mm2\n\t"
"movq %%mm1, %%mm3\n\t"
"punpcklbw %%mm7, %%mm0\n\t"
"punpcklbw %%mm7, %%mm1\n\t"
"punpckhbw %%mm7, %%mm2\n\t"
"punpckhbw %%mm7, %%mm3\n\t"
"paddusw %%mm1, %%mm0\n\t"
"paddusw %%mm3, %%mm2\n\t"
"paddusw %%mm4, %%mm0\n\t"
"paddusw %%mm4, %%mm2\n\t"
"psrlw $1, %%mm0\n\t"
"psrlw $1, %%mm2\n\t"
"packuswb %%mm2, %%mm0\n\t"
"movq %%mm0, %0\n\t"
:"=m"(*p)
:"m"(*pix),
"m"(*(pix+line_size))
:"memory");
pix += line_size;
p += line_size;
} while (--h);
#else
__asm __volatile(
MOVQ_BFE(%%mm7)
"lea (%3, %3), %%eax \n\t"
"movq (%1), %%mm0 \n\t"
".balign 8 \n\t"
"1: \n\t"
"movq (%1, %3), %%mm1 \n\t"
"movq (%1, %%eax),%%mm2 \n\t"
PAVG_MMX(%%mm1, %%mm0)
"movq %%mm6, (%2) \n\t"
PAVG_MMX(%%mm2, %%mm1)
"movq %%mm6, (%2, %3) \n\t"
"addl %%eax, %1 \n\t"
"addl %%eax, %2 \n\t"
#ifdef LONG_UNROLL
"movq (%1, %3), %%mm1 \n\t"
"movq (%1, %%eax),%%mm0 \n\t"
PAVG_MMX(%%mm1, %%mm2)
"movq %%mm6, (%2) \n\t"
PAVG_MMX(%%mm0, %%mm1)
"movq %%mm6, (%2, %3) \n\t"
"addl %%eax, %1 \n\t"
"addl %%eax, %2 \n\t"
"subl $4, %0 \n\t"
#else
"subl $2, %0 \n\t"
#endif
"jnz 1b \n\t"
:"+g"(h), "+S"(pixels), "+D"(block)
:"r"(line_size)
:"eax", "memory");
#endif


}

static void put_pixels_xy2_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
UINT8 *p;
@@ -510,70 +388,6 @@ static void put_pixels_xy2_mmx(UINT8 *block, const UINT8 *pixels, int line_size,
} while(--h);
}

static void put_no_rnd_pixels_x2_mmx( UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
UINT8 *p;
const UINT8 *pix;
p = block;
pix = pixels;
MOVQ_ZERO(mm7);
do {
__asm __volatile(
"movq %1, %%mm0\n\t"
"movq 1%1, %%mm1\n\t"
"movq %%mm0, %%mm2\n\t"
"movq %%mm1, %%mm3\n\t"
"punpcklbw %%mm7, %%mm0\n\t"
"punpcklbw %%mm7, %%mm1\n\t"
"punpckhbw %%mm7, %%mm2\n\t"
"punpckhbw %%mm7, %%mm3\n\t"
"paddusw %%mm1, %%mm0\n\t"
"paddusw %%mm3, %%mm2\n\t"
"psrlw $1, %%mm0\n\t"
"psrlw $1, %%mm2\n\t"
"packuswb %%mm2, %%mm0\n\t"
"movq %%mm0, %0\n\t"
:"=m"(*p)
:"m"(*pix)
:"memory");
pix += line_size;
p += line_size;
} while (--h);
}

static void put_no_rnd_pixels_y2_mmx( UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
UINT8 *p;
const UINT8 *pix;
p = block;
pix = pixels;
MOVQ_ZERO(mm7);
JUMPALIGN();
do {
__asm __volatile(
"movq %1, %%mm0\n\t"
"movq %2, %%mm1\n\t"
"movq %%mm0, %%mm2\n\t"
"movq %%mm1, %%mm3\n\t"
"punpcklbw %%mm7, %%mm0\n\t"
"punpcklbw %%mm7, %%mm1\n\t"
"punpckhbw %%mm7, %%mm2\n\t"
"punpckhbw %%mm7, %%mm3\n\t"
"paddusw %%mm1, %%mm0\n\t"
"paddusw %%mm3, %%mm2\n\t"
"psrlw $1, %%mm0\n\t"
"psrlw $1, %%mm2\n\t"
"packuswb %%mm2, %%mm0\n\t"
"movq %%mm0, %0\n\t"
:"=m"(*p)
:"m"(*pix),
"m"(*(pix+line_size))
:"memory");
pix += line_size;
p += line_size;
} while(--h);
}

static void put_no_rnd_pixels_xy2_mmx( UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
UINT8 *p;
@@ -621,7 +435,7 @@ static void put_no_rnd_pixels_xy2_mmx( UINT8 *block, const UINT8 *pixels, int
p += line_size;
} while(--h);
}
#endif
static void avg_pixels_mmx(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
UINT8 *p;


+ 139
- 0
libavcodec/i386/dsputil_mmx_rnd.h View File

@@ -0,0 +1,139 @@
/*
* DSP utils mmx functions are compiled twice for rnd/no_rnd
* Copyright (c) 2000, 2001 Fabrice Bellard.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* MMX optimization by Nick Kurshev <nickols_k@mail.ru>
* mostly rewritten by Michael Niedermayer <michaelni@gmx.at>
* and improved by Zdenek Kabelac <kabi@users.sf.net>
*/

// will have to be check if it's better to have bigger
// unrolled code also on Celerons - for now yes
#define LONG_UNROLL 1

// put_pixels
static void DEF(put, pixels_x2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
__asm __volatile(
MOVQ_BFE(%%mm7)
"lea (%3, %3), %%eax \n\t"
".balign 8 \n\t"
"1: \n\t"
"movq (%1), %%mm0 \n\t"
"movq (%1, %3), %%mm2 \n\t"
"movq 1(%1), %%mm1 \n\t"
"movq 1(%1, %3), %%mm3 \n\t"
PAVGB(%%mm0, %%mm1)
"movq %%mm6, (%2) \n\t"
PAVGB(%%mm2, %%mm3)
"movq %%mm6, (%2, %3) \n\t"
"addl %%eax, %1 \n\t"
"addl %%eax, %2 \n\t"
#if LONG_UNROLL
"movq (%1), %%mm0 \n\t"
"movq (%1, %3), %%mm2 \n\t"
"movq 1(%1), %%mm1 \n\t"
"movq 1(%1, %3), %%mm3 \n\t"
PAVGB(%%mm0, %%mm1)
"movq %%mm6, (%2) \n\t"
PAVGB(%%mm2, %%mm3)
"movq %%mm6, (%2, %3) \n\t"
"addl %%eax, %1 \n\t"
"addl %%eax, %2 \n\t"
"subl $4, %0 \n\t"
#else
"subl $2, %0 \n\t"
#endif
"jnz 1b \n\t"
:"+g"(h), "+S"(pixels), "+D"(block)
:"r"(line_size)
:"eax", "memory");
}

static void DEF(put, pixels_y2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
__asm __volatile(
MOVQ_BFE(%%mm7)
"lea (%3, %3), %%eax \n\t"
"movq (%1), %%mm0 \n\t"
".balign 8 \n\t"
"1: \n\t"
"movq (%1, %3), %%mm1 \n\t"
"movq (%1, %%eax),%%mm2 \n\t"
PAVGB(%%mm1, %%mm0)
"movq %%mm6, (%2) \n\t"
PAVGB(%%mm2, %%mm1)
"movq %%mm6, (%2, %3) \n\t"
"addl %%eax, %1 \n\t"
"addl %%eax, %2 \n\t"
#ifdef LONG_UNROLL
"movq (%1, %3), %%mm1 \n\t"
"movq (%1, %%eax),%%mm0 \n\t"
PAVGB(%%mm1, %%mm2)
"movq %%mm6, (%2) \n\t"
PAVGB(%%mm0, %%mm1)
"movq %%mm6, (%2, %3) \n\t"
"addl %%eax, %1 \n\t"
"addl %%eax, %2 \n\t"
"subl $4, %0 \n\t"
#else
"subl $2, %0 \n\t"
#endif
"jnz 1b \n\t"
:"+g"(h), "+S"(pixels), "+D"(block)
:"r"(line_size)
:"eax", "memory");
}

// ((a + b)/2 + (c + d)/2)/2
// not sure if this is properly replacing original code
static void DEF(put, pixels_xy2)(UINT8 *block, const UINT8 *pixels, int line_size, int h)
{
__asm __volatile(
MOVQ_BFE(%%mm7)
"lea (%3, %3), %%eax \n\t"
"movq (%1), %%mm0 \n\t"
"movq (%1), %%mm0 \n\t"
"movq 1(%1), %%mm1 \n\t"
".balign 8 \n\t"
"1: \n\t"
"movq (%1, %3), %%mm2 \n\t"
"movq 1(%1, %3), %%mm3 \n\t"
PAVGBR(%%mm2, %%mm0, %%mm4)
PAVGBR(%%mm3, %%mm1, %%mm5)
PAVGB(%%mm4, %%mm5)
"movq %%mm6, (%2) \n\t"

"movq (%1, %%eax), %%mm0 \n\t"
"movq 1(%1, %%eax), %%mm1 \n\t"
PAVGBR(%%mm0, %%mm2, %%mm4)
PAVGBR(%%mm1, %%mm3, %%mm5)
PAVGB(%%mm4, %%mm5)
"movq %%mm6, (%2, %3) \n\t"
"addl %%eax, %1 \n\t"
"addl %%eax, %2 \n\t"

"subl $2, %0 \n\t"

"jnz 1b \n\t"
:"+g"(h), "+S"(pixels), "+D"(block)
:"r"(line_size)
:"eax", "memory");
}

// avg_pixels


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