ref: cccad1c5de41e29d6cc64c6e11a1d91c8486d090
dir: /vp8/common/x86/vp8_variance_mmx.c/
/*
* Copyright (c) 2010 The WebM 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 "./vp8_rtcd.h"
#include "vpx_config.h"
#include "vp8/common/variance.h"
#include "vpx_ports/mem.h"
#include "vp8/common/x86/filter_x86.h"
extern void filter_block1d_h6_mmx
(
const unsigned char *src_ptr,
unsigned short *output_ptr,
unsigned int src_pixels_per_line,
unsigned int pixel_step,
unsigned int output_height,
unsigned int output_width,
short *filter
);
extern void filter_block1d_v6_mmx
(
const short *src_ptr,
unsigned char *output_ptr,
unsigned int pixels_per_line,
unsigned int pixel_step,
unsigned int output_height,
unsigned int output_width,
short *filter
);
extern void vp8_filter_block2d_bil4x4_var_mmx
(
const unsigned char *ref_ptr,
int ref_pixels_per_line,
const unsigned char *src_ptr,
int src_pixels_per_line,
const short *HFilter,
const short *VFilter,
int *sum,
unsigned int *sumsquared
);
extern void vp8_filter_block2d_bil_var_mmx
(
const unsigned char *ref_ptr,
int ref_pixels_per_line,
const unsigned char *src_ptr,
int src_pixels_per_line,
unsigned int Height,
const short *HFilter,
const short *VFilter,
int *sum,
unsigned int *sumsquared
);
unsigned int vp8_sub_pixel_variance4x4_mmx
(
const unsigned char *src_ptr,
int src_pixels_per_line,
int xoffset,
int yoffset,
const unsigned char *dst_ptr,
int dst_pixels_per_line,
unsigned int *sse)
{
int xsum;
unsigned int xxsum;
vp8_filter_block2d_bil4x4_var_mmx(
src_ptr, src_pixels_per_line,
dst_ptr, dst_pixels_per_line,
vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
&xsum, &xxsum
);
*sse = xxsum;
return (xxsum - (((unsigned int)xsum * xsum) >> 4));
}
unsigned int vp8_sub_pixel_variance8x8_mmx
(
const unsigned char *src_ptr,
int src_pixels_per_line,
int xoffset,
int yoffset,
const unsigned char *dst_ptr,
int dst_pixels_per_line,
unsigned int *sse
)
{
int xsum;
unsigned int xxsum;
vp8_filter_block2d_bil_var_mmx(
src_ptr, src_pixels_per_line,
dst_ptr, dst_pixels_per_line, 8,
vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
&xsum, &xxsum
);
*sse = xxsum;
return (xxsum - (((unsigned int)xsum * xsum) >> 6));
}
unsigned int vp8_sub_pixel_variance16x16_mmx
(
const unsigned char *src_ptr,
int src_pixels_per_line,
int xoffset,
int yoffset,
const unsigned char *dst_ptr,
int dst_pixels_per_line,
unsigned int *sse
)
{
int xsum0, xsum1;
unsigned int xxsum0, xxsum1;
vp8_filter_block2d_bil_var_mmx(
src_ptr, src_pixels_per_line,
dst_ptr, dst_pixels_per_line, 16,
vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
&xsum0, &xxsum0
);
vp8_filter_block2d_bil_var_mmx(
src_ptr + 8, src_pixels_per_line,
dst_ptr + 8, dst_pixels_per_line, 16,
vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
&xsum1, &xxsum1
);
xsum0 += xsum1;
xxsum0 += xxsum1;
*sse = xxsum0;
return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
}
unsigned int vp8_sub_pixel_variance16x8_mmx
(
const unsigned char *src_ptr,
int src_pixels_per_line,
int xoffset,
int yoffset,
const unsigned char *dst_ptr,
int dst_pixels_per_line,
unsigned int *sse
)
{
int xsum0, xsum1;
unsigned int xxsum0, xxsum1;
vp8_filter_block2d_bil_var_mmx(
src_ptr, src_pixels_per_line,
dst_ptr, dst_pixels_per_line, 8,
vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
&xsum0, &xxsum0
);
vp8_filter_block2d_bil_var_mmx(
src_ptr + 8, src_pixels_per_line,
dst_ptr + 8, dst_pixels_per_line, 8,
vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
&xsum1, &xxsum1
);
xsum0 += xsum1;
xxsum0 += xxsum1;
*sse = xxsum0;
return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 7));
}
unsigned int vp8_sub_pixel_variance8x16_mmx
(
const unsigned char *src_ptr,
int src_pixels_per_line,
int xoffset,
int yoffset,
const unsigned char *dst_ptr,
int dst_pixels_per_line,
unsigned int *sse
)
{
int xsum;
unsigned int xxsum;
vp8_filter_block2d_bil_var_mmx(
src_ptr, src_pixels_per_line,
dst_ptr, dst_pixels_per_line, 16,
vp8_bilinear_filters_x86_4[xoffset], vp8_bilinear_filters_x86_4[yoffset],
&xsum, &xxsum
);
*sse = xxsum;
return (xxsum - (((unsigned int)xsum * xsum) >> 7));
}
unsigned int vp8_variance_halfpixvar16x16_h_mmx(
const unsigned char *src_ptr,
int source_stride,
const unsigned char *ref_ptr,
int recon_stride,
unsigned int *sse)
{
return vp8_sub_pixel_variance16x16_mmx(src_ptr, source_stride, 4, 0,
ref_ptr, recon_stride, sse);
}
unsigned int vp8_variance_halfpixvar16x16_v_mmx(
const unsigned char *src_ptr,
int source_stride,
const unsigned char *ref_ptr,
int recon_stride,
unsigned int *sse)
{
return vp8_sub_pixel_variance16x16_mmx(src_ptr, source_stride, 0, 4,
ref_ptr, recon_stride, sse);
}
unsigned int vp8_variance_halfpixvar16x16_hv_mmx(
const unsigned char *src_ptr,
int source_stride,
const unsigned char *ref_ptr,
int recon_stride,
unsigned int *sse)
{
return vp8_sub_pixel_variance16x16_mmx(src_ptr, source_stride, 4, 4,
ref_ptr, recon_stride, sse);
}