ref: 9fdfb8e92823abadc54d825d0603a7e9fd344520
dir: /vp8/encoder/x86/preproc_mmx.c/
/*
* Copyright (c) 2010 The VP8 project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "memory.h"
#include "preproc.h"
#include "pragmas.h"
/****************************************************************************
* Macros
****************************************************************************/
#define FRAMECOUNT 7
#define ROUNDUP32(X) ( ( ( (unsigned long) X ) + 31 )&( 0xFFFFFFE0 ) )
/****************************************************************************
* Imports
****************************************************************************/
extern void vpx_get_processor_flags(int *mmx_enabled, int *xmm_enabled, int *wmt_enabled);
/****************************************************************************
* Exported Global Variables
****************************************************************************/
void (*temp_filter)(pre_proc_instance *ppi, unsigned char *s, unsigned char *d, int bytes, int strength);
/****************************************************************************
*
* ROUTINE : temp_filter_wmt
*
* INPUTS : pre_proc_instance *ppi : Pointer to pre-processor instance.
* unsigned char *s : Pointer to source frame.
* unsigned char *d : Pointer to destination frame.
* int bytes : Number of bytes to filter.
* int strength : Strength of filter to apply.
*
* OUTPUTS : None.
*
* RETURNS : void
*
* FUNCTION : Performs a closesness adjusted temporarl blur
*
* SPECIAL NOTES : Destination frame can be same as source frame.
*
****************************************************************************/
void temp_filter_wmt
(
pre_proc_instance *ppi,
unsigned char *s,
unsigned char *d,
int bytes,
int strength
)
{
int byte = 0;
unsigned char *frameptr = ppi->frame_buffer;
__declspec(align(16)) unsigned short threes[] = { 3, 3, 3, 3, 3, 3, 3, 3};
__declspec(align(16)) unsigned short sixteens[] = {16, 16, 16, 16, 16, 16, 16, 16};
if (ppi->frame == 0)
{
do
{
int i;
int frame = 0;
do
{
for (i = 0; i < 8; i++)
{
*frameptr = s[byte+i];
++frameptr;
}
++frame;
}
while (frame < FRAMECOUNT);
for (i = 0; i < 8; i++)
d[byte+i] = s[byte+i];
byte += 8;
}
while (byte < bytes);
}
else
{
int i;
int offset2 = (ppi->frame % FRAMECOUNT);
do
{
__declspec(align(16)) unsigned short counts[8];
__declspec(align(16)) unsigned short sums[8];
__asm
{
mov eax, offset2
mov edi, s // source pixels
pxor xmm1, xmm1 // accumulator
pxor xmm7, xmm7
mov esi, frameptr // accumulator
pxor xmm2, xmm2 // count
movq xmm3, QWORD PTR [edi]
movq QWORD PTR [esi+8*eax], xmm3
punpcklbw xmm3, xmm2 // xmm3 source pixels
mov ecx, FRAMECOUNT
next_frame:
movq xmm4, QWORD PTR [esi] // get frame buffer values
punpcklbw xmm4, xmm7 // xmm4 frame buffer pixels
movdqa xmm6, xmm4 // save the pixel values
psubsw xmm4, xmm3 // subtracted pixel values
pmullw xmm4, xmm4 // square xmm4
movd xmm5, strength
psrlw xmm4, xmm5 // should be strength
pmullw xmm4, threes // 3 * modifier
movdqa xmm5, sixteens // 16s
psubusw xmm5, xmm4 // 16 - modifiers
movdqa xmm4, xmm5 // save the modifiers
pmullw xmm4, xmm6 // multiplier values
paddusw xmm1, xmm4 // accumulator
paddusw xmm2, xmm5 // count
add esi, 8 // next frame
dec ecx // next set of eight pixels
jnz next_frame
movdqa counts, xmm2
psrlw xmm2, 1 // divide count by 2 for rounding
paddusw xmm1, xmm2 // rounding added in
mov frameptr, esi
movdqa sums, xmm1
}
for (i = 0; i < 8; i++)
{
int blurvalue = sums[i] * ppi->fixed_divide[counts[i]];
blurvalue >>= 16;
d[i] = blurvalue;
}
s += 8;
d += 8;
byte += 8;
}
while (byte < bytes);
}
++ppi->frame;
__asm emms
}
/****************************************************************************
*
* ROUTINE : temp_filter_mmx
*
* INPUTS : pre_proc_instance *ppi : Pointer to pre-processor instance.
* unsigned char *s : Pointer to source frame.
* unsigned char *d : Pointer to destination frame.
* int bytes : Number of bytes to filter.
* int strength : Strength of filter to apply.
*
* OUTPUTS : None.
*
* RETURNS : void
*
* FUNCTION : Performs a closesness adjusted temporarl blur
*
* SPECIAL NOTES : Destination frame can be same as source frame.
*
****************************************************************************/
void temp_filter_mmx
(
pre_proc_instance *ppi,
unsigned char *s,
unsigned char *d,
int bytes,
int strength
)
{
int byte = 0;
unsigned char *frameptr = ppi->frame_buffer;
__declspec(align(16)) unsigned short threes[] = { 3, 3, 3, 3};
__declspec(align(16)) unsigned short sixteens[] = {16, 16, 16, 16};
if (ppi->frame == 0)
{
do
{
int i;
int frame = 0;
do
{
for (i = 0; i < 4; i++)
{
*frameptr = s[byte+i];
++frameptr;
}
++frame;
}
while (frame < FRAMECOUNT);
for (i = 0; i < 4; i++)
d[byte+i] = s[byte+i];
byte += 4;
}
while (byte < bytes);
}
else
{
int i;
int offset2 = (ppi->frame % FRAMECOUNT);
do
{
__declspec(align(16)) unsigned short counts[8];
__declspec(align(16)) unsigned short sums[8];
__asm
{
mov eax, offset2
mov edi, s // source pixels
pxor mm1, mm1 // accumulator
pxor mm7, mm7
mov esi, frameptr // accumulator
pxor mm2, mm2 // count
movd mm3, DWORD PTR [edi]
movd DWORD PTR [esi+4*eax], mm3
punpcklbw mm3, mm2 // mm3 source pixels
mov ecx, FRAMECOUNT
next_frame:
movd mm4, DWORD PTR [esi] // get frame buffer values
punpcklbw mm4, mm7 // mm4 frame buffer pixels
movq mm6, mm4 // save the pixel values
psubsw mm4, mm3 // subtracted pixel values
pmullw mm4, mm4 // square mm4
movd mm5, strength
psrlw mm4, mm5 // should be strength
pmullw mm4, threes // 3 * modifier
movq mm5, sixteens // 16s
psubusw mm5, mm4 // 16 - modifiers
movq mm4, mm5 // save the modifiers
pmullw mm4, mm6 // multiplier values
paddusw mm1, mm4 // accumulator
paddusw mm2, mm5 // count
add esi, 4 // next frame
dec ecx // next set of eight pixels
jnz next_frame
movq counts, mm2
psrlw mm2, 1 // divide count by 2 for rounding
paddusw mm1, mm2 // rounding added in
mov frameptr, esi
movq sums, mm1
}
for (i = 0; i < 4; i++)
{
int blurvalue = sums[i] * ppi->fixed_divide[counts[i]];
blurvalue >>= 16;
d[i] = blurvalue;
}
s += 4;
d += 4;
byte += 4;
}
while (byte < bytes);
}
++ppi->frame;
__asm emms
}