shithub: libvpx

Download patch

ref: 907b33cdc432773f04f53e06a7d2d4ac1c434c18
parent: 41d8545ab645959466d4127c46780f28a88e0c73
author: Johann <johannkoenig@google.com>
date: Tue Jun 2 10:17:24 EDT 2015

Move vp8 variance files

There is a naming conflict in the chromium build system.

The rest of the variance functions will move to vpx_dsp soon.

Change-Id: Iff78da2aafb0d7380eda73e38d7dac72110a1e47

--- a/vp8/common/x86/variance_impl_mmx.asm
+++ /dev/null
@@ -1,353 +1,0 @@
-;
-;  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 "vpx_ports/x86_abi_support.asm"
-
-%define mmx_filter_shift            7
-
-;void vp8_filter_block2d_bil4x4_var_mmx
-;(
-;    unsigned char *ref_ptr,
-;    int ref_pixels_per_line,
-;    unsigned char *src_ptr,
-;    int src_pixels_per_line,
-;    unsigned short *HFilter,
-;    unsigned short *VFilter,
-;    int *sum,
-;    unsigned int *sumsquared
-;)
-global sym(vp8_filter_block2d_bil4x4_var_mmx) PRIVATE
-sym(vp8_filter_block2d_bil4x4_var_mmx):
-    push        rbp
-    mov         rbp, rsp
-    SHADOW_ARGS_TO_STACK 8
-    GET_GOT     rbx
-    push rsi
-    push rdi
-    sub         rsp, 16
-    ; end prolog
-
-
-        pxor            mm6,            mm6                 ;
-        pxor            mm7,            mm7                 ;
-
-        mov             rax,            arg(4) ;HFilter             ;
-        mov             rdx,            arg(5) ;VFilter             ;
-
-        mov             rsi,            arg(0) ;ref_ptr              ;
-        mov             rdi,            arg(2) ;src_ptr              ;
-
-        mov             rcx,            4                   ;
-        pxor            mm0,            mm0                 ;
-
-        movd            mm1,            [rsi]               ;
-        movd            mm3,            [rsi+1]             ;
-
-        punpcklbw       mm1,            mm0                 ;
-        pmullw          mm1,            [rax]               ;
-
-        punpcklbw       mm3,            mm0                 ;
-        pmullw          mm3,            [rax+8]             ;
-
-        paddw           mm1,            mm3                 ;
-        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
-
-        psraw           mm1,            mmx_filter_shift    ;
-        movq            mm5,            mm1
-
-%if ABI_IS_32BIT
-        add             rsi, dword ptr  arg(1) ;ref_pixels_per_line    ;
-%else
-        movsxd          r8, dword ptr  arg(1) ;ref_pixels_per_line    ;
-        add             rsi, r8
-%endif
-
-.filter_block2d_bil4x4_var_mmx_loop:
-
-        movd            mm1,            [rsi]               ;
-        movd            mm3,            [rsi+1]             ;
-
-        punpcklbw       mm1,            mm0                 ;
-        pmullw          mm1,            [rax]               ;
-
-        punpcklbw       mm3,            mm0                 ;
-        pmullw          mm3,            [rax+8]             ;
-
-        paddw           mm1,            mm3                 ;
-        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
-
-        psraw           mm1,            mmx_filter_shift    ;
-        movq            mm3,            mm5                 ;
-
-        movq            mm5,            mm1                 ;
-        pmullw          mm3,            [rdx]               ;
-
-        pmullw          mm1,            [rdx+8]             ;
-        paddw           mm1,            mm3                 ;
-
-
-        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
-        psraw           mm1,            mmx_filter_shift    ;
-
-        movd            mm3,            [rdi]               ;
-        punpcklbw       mm3,            mm0                 ;
-
-        psubw           mm1,            mm3                 ;
-        paddw           mm6,            mm1                 ;
-
-        pmaddwd         mm1,            mm1                 ;
-        paddd           mm7,            mm1                 ;
-
-%if ABI_IS_32BIT
-        add             rsi,            dword ptr arg(1) ;ref_pixels_per_line    ;
-        add             rdi,            dword ptr arg(3) ;src_pixels_per_line    ;
-%else
-        movsxd          r8,             dword ptr arg(1) ;ref_pixels_per_line
-        movsxd          r9,             dword ptr arg(3) ;src_pixels_per_line
-        add             rsi,            r8
-        add             rdi,            r9
-%endif
-        sub             rcx,            1                   ;
-        jnz             .filter_block2d_bil4x4_var_mmx_loop       ;
-
-
-        pxor            mm3,            mm3                 ;
-        pxor            mm2,            mm2                 ;
-
-        punpcklwd       mm2,            mm6                 ;
-        punpckhwd       mm3,            mm6                 ;
-
-        paddd           mm2,            mm3                 ;
-        movq            mm6,            mm2                 ;
-
-        psrlq           mm6,            32                  ;
-        paddd           mm2,            mm6                 ;
-
-        psrad           mm2,            16                  ;
-        movq            mm4,            mm7                 ;
-
-        psrlq           mm4,            32                  ;
-        paddd           mm4,            mm7                 ;
-
-        mov             rdi,            arg(6) ;sum
-        mov             rsi,            arg(7) ;sumsquared
-
-        movd            dword ptr [rdi],          mm2                 ;
-        movd            dword ptr [rsi],          mm4                 ;
-
-
-
-    ; begin epilog
-    add rsp, 16
-    pop rdi
-    pop rsi
-    RESTORE_GOT
-    UNSHADOW_ARGS
-    pop         rbp
-    ret
-
-
-
-
-;void vp8_filter_block2d_bil_var_mmx
-;(
-;    unsigned char *ref_ptr,
-;    int ref_pixels_per_line,
-;    unsigned char *src_ptr,
-;    int src_pixels_per_line,
-;    unsigned int Height,
-;    unsigned short *HFilter,
-;    unsigned short *VFilter,
-;    int *sum,
-;    unsigned int *sumsquared
-;)
-global sym(vp8_filter_block2d_bil_var_mmx) PRIVATE
-sym(vp8_filter_block2d_bil_var_mmx):
-    push        rbp
-    mov         rbp, rsp
-    SHADOW_ARGS_TO_STACK 9
-    GET_GOT     rbx
-    push rsi
-    push rdi
-    sub         rsp, 16
-    ; end prolog
-
-        pxor            mm6,            mm6                 ;
-        pxor            mm7,            mm7                 ;
-        mov             rax,            arg(5) ;HFilter             ;
-
-        mov             rdx,            arg(6) ;VFilter             ;
-        mov             rsi,            arg(0) ;ref_ptr              ;
-
-        mov             rdi,            arg(2) ;src_ptr              ;
-        movsxd          rcx,            dword ptr arg(4) ;Height              ;
-
-        pxor            mm0,            mm0                 ;
-        movq            mm1,            [rsi]               ;
-
-        movq            mm3,            [rsi+1]             ;
-        movq            mm2,            mm1                 ;
-
-        movq            mm4,            mm3                 ;
-        punpcklbw       mm1,            mm0                 ;
-
-        punpckhbw       mm2,            mm0                 ;
-        pmullw          mm1,            [rax]               ;
-
-        pmullw          mm2,            [rax]               ;
-        punpcklbw       mm3,            mm0                 ;
-
-        punpckhbw       mm4,            mm0                 ;
-        pmullw          mm3,            [rax+8]             ;
-
-        pmullw          mm4,            [rax+8]             ;
-        paddw           mm1,            mm3                 ;
-
-        paddw           mm2,            mm4                 ;
-        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
-
-        psraw           mm1,            mmx_filter_shift    ;
-        paddw           mm2,            [GLOBAL(mmx_bi_rd)] ;
-
-        psraw           mm2,            mmx_filter_shift    ;
-        movq            mm5,            mm1
-
-        packuswb        mm5,            mm2                 ;
-%if ABI_IS_32BIT
-        add             rsi,            dword ptr arg(1) ;ref_pixels_per_line
-%else
-        movsxd          r8,             dword ptr arg(1) ;ref_pixels_per_line
-        add             rsi,            r8
-%endif
-
-.filter_block2d_bil_var_mmx_loop:
-
-        movq            mm1,            [rsi]               ;
-        movq            mm3,            [rsi+1]             ;
-
-        movq            mm2,            mm1                 ;
-        movq            mm4,            mm3                 ;
-
-        punpcklbw       mm1,            mm0                 ;
-        punpckhbw       mm2,            mm0                 ;
-
-        pmullw          mm1,            [rax]               ;
-        pmullw          mm2,            [rax]               ;
-
-        punpcklbw       mm3,            mm0                 ;
-        punpckhbw       mm4,            mm0                 ;
-
-        pmullw          mm3,            [rax+8]             ;
-        pmullw          mm4,            [rax+8]             ;
-
-        paddw           mm1,            mm3                 ;
-        paddw           mm2,            mm4                 ;
-
-        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
-        psraw           mm1,            mmx_filter_shift    ;
-
-        paddw           mm2,            [GLOBAL(mmx_bi_rd)] ;
-        psraw           mm2,            mmx_filter_shift    ;
-
-        movq            mm3,            mm5                 ;
-        movq            mm4,            mm5                 ;
-
-        punpcklbw       mm3,            mm0                 ;
-        punpckhbw       mm4,            mm0                 ;
-
-        movq            mm5,            mm1                 ;
-        packuswb        mm5,            mm2                 ;
-
-        pmullw          mm3,            [rdx]               ;
-        pmullw          mm4,            [rdx]               ;
-
-        pmullw          mm1,            [rdx+8]             ;
-        pmullw          mm2,            [rdx+8]             ;
-
-        paddw           mm1,            mm3                 ;
-        paddw           mm2,            mm4                 ;
-
-        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
-        paddw           mm2,            [GLOBAL(mmx_bi_rd)] ;
-
-        psraw           mm1,            mmx_filter_shift    ;
-        psraw           mm2,            mmx_filter_shift    ;
-
-        movq            mm3,            [rdi]               ;
-        movq            mm4,            mm3                 ;
-
-        punpcklbw       mm3,            mm0                 ;
-        punpckhbw       mm4,            mm0                 ;
-
-        psubw           mm1,            mm3                 ;
-        psubw           mm2,            mm4                 ;
-
-        paddw           mm6,            mm1                 ;
-        pmaddwd         mm1,            mm1                 ;
-
-        paddw           mm6,            mm2                 ;
-        pmaddwd         mm2,            mm2                 ;
-
-        paddd           mm7,            mm1                 ;
-        paddd           mm7,            mm2                 ;
-
-%if ABI_IS_32BIT
-        add             rsi,            dword ptr arg(1) ;ref_pixels_per_line    ;
-        add             rdi,            dword ptr arg(3) ;src_pixels_per_line    ;
-%else
-        movsxd          r8,             dword ptr arg(1) ;ref_pixels_per_line    ;
-        movsxd          r9,             dword ptr arg(3) ;src_pixels_per_line    ;
-        add             rsi,            r8
-        add             rdi,            r9
-%endif
-        sub             rcx,            1                   ;
-        jnz             .filter_block2d_bil_var_mmx_loop       ;
-
-
-        pxor            mm3,            mm3                 ;
-        pxor            mm2,            mm2                 ;
-
-        punpcklwd       mm2,            mm6                 ;
-        punpckhwd       mm3,            mm6                 ;
-
-        paddd           mm2,            mm3                 ;
-        movq            mm6,            mm2                 ;
-
-        psrlq           mm6,            32                  ;
-        paddd           mm2,            mm6                 ;
-
-        psrad           mm2,            16                  ;
-        movq            mm4,            mm7                 ;
-
-        psrlq           mm4,            32                  ;
-        paddd           mm4,            mm7                 ;
-
-        mov             rdi,            arg(7) ;sum
-        mov             rsi,            arg(8) ;sumsquared
-
-        movd            dword ptr [rdi],          mm2                 ;
-        movd            dword ptr [rsi],          mm4                 ;
-
-    ; begin epilog
-    add rsp, 16
-    pop rdi
-    pop rsi
-    RESTORE_GOT
-    UNSHADOW_ARGS
-    pop         rbp
-    ret
-
-
-SECTION_RODATA
-;short mmx_bi_rd[4] = { 64, 64, 64, 64};
-align 16
-mmx_bi_rd:
-    times 4 dw 64
--- a/vp8/common/x86/variance_mmx.c
+++ /dev/null
@@ -1,244 +1,0 @@
-/*
- *  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);
-}
--- a/vp8/common/x86/variance_sse2.c
+++ /dev/null
@@ -1,403 +1,0 @@
-/*
- *  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 filter_block1d8_h6_sse2(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_block1d8_v6_sse2(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
-);
-
-void vp8_filter_block2d_bil_var_sse2
-(
-    const unsigned char *ref_ptr,
-    int ref_pixels_per_line,
-    const unsigned char *src_ptr,
-    int src_pixels_per_line,
-    unsigned int Height,
-    int  xoffset,
-    int  yoffset,
-    int *sum,
-    unsigned int *sumsquared
-);
-void vp8_half_horiz_vert_variance8x_h_sse2
-(
-    const unsigned char *ref_ptr,
-    int ref_pixels_per_line,
-    const unsigned char *src_ptr,
-    int src_pixels_per_line,
-    unsigned int Height,
-    int *sum,
-    unsigned int *sumsquared
-);
-void vp8_half_horiz_vert_variance16x_h_sse2
-(
-    const unsigned char *ref_ptr,
-    int ref_pixels_per_line,
-    const unsigned char *src_ptr,
-    int src_pixels_per_line,
-    unsigned int Height,
-    int *sum,
-    unsigned int *sumsquared
-);
-void vp8_half_horiz_variance8x_h_sse2
-(
-    const unsigned char *ref_ptr,
-    int ref_pixels_per_line,
-    const unsigned char *src_ptr,
-    int src_pixels_per_line,
-    unsigned int Height,
-    int *sum,
-    unsigned int *sumsquared
-);
-void vp8_half_horiz_variance16x_h_sse2
-(
-    const unsigned char *ref_ptr,
-    int ref_pixels_per_line,
-    const unsigned char *src_ptr,
-    int src_pixels_per_line,
-    unsigned int Height,
-    int *sum,
-    unsigned int *sumsquared
-);
-void vp8_half_vert_variance8x_h_sse2
-(
-    const unsigned char *ref_ptr,
-    int ref_pixels_per_line,
-    const unsigned char *src_ptr,
-    int src_pixels_per_line,
-    unsigned int Height,
-    int *sum,
-    unsigned int *sumsquared
-);
-void vp8_half_vert_variance16x_h_sse2
-(
-    const unsigned char *ref_ptr,
-    int ref_pixels_per_line,
-    const unsigned char *src_ptr,
-    int src_pixels_per_line,
-    unsigned int Height,
-    int *sum,
-    unsigned int *sumsquared
-);
-
-unsigned int vp8_sub_pixel_variance4x4_wmt
-(
-    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_wmt
-(
-    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;
-
-    if (xoffset == 4 && yoffset == 0)
-    {
-        vp8_half_horiz_variance8x_h_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 8,
-            &xsum, &xxsum);
-    }
-    else if (xoffset == 0 && yoffset == 4)
-    {
-        vp8_half_vert_variance8x_h_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 8,
-            &xsum, &xxsum);
-    }
-    else if (xoffset == 4 && yoffset == 4)
-    {
-        vp8_half_horiz_vert_variance8x_h_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 8,
-            &xsum, &xxsum);
-    }
-    else
-    {
-        vp8_filter_block2d_bil_var_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 8,
-            xoffset, yoffset,
-            &xsum, &xxsum);
-    }
-
-    *sse = xxsum;
-    return (xxsum - (((unsigned int)xsum * xsum) >> 6));
-}
-
-unsigned int vp8_sub_pixel_variance16x16_wmt
-(
-    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;
-
-
-    /* note we could avoid these if statements if the calling function
-     * just called the appropriate functions inside.
-     */
-    if (xoffset == 4 && yoffset == 0)
-    {
-        vp8_half_horiz_variance16x_h_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 16,
-            &xsum0, &xxsum0);
-    }
-    else if (xoffset == 0 && yoffset == 4)
-    {
-        vp8_half_vert_variance16x_h_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 16,
-            &xsum0, &xxsum0);
-    }
-    else if (xoffset == 4 && yoffset == 4)
-    {
-        vp8_half_horiz_vert_variance16x_h_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 16,
-            &xsum0, &xxsum0);
-    }
-    else
-    {
-        vp8_filter_block2d_bil_var_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 16,
-            xoffset, yoffset,
-            &xsum0, &xxsum0
-        );
-
-        vp8_filter_block2d_bil_var_sse2(
-            src_ptr + 8, src_pixels_per_line,
-            dst_ptr + 8, dst_pixels_per_line, 16,
-            xoffset, yoffset,
-            &xsum1, &xxsum1
-        );
-        xsum0 += xsum1;
-        xxsum0 += xxsum1;
-    }
-
-    *sse = xxsum0;
-    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
-}
-
-unsigned int vp8_sub_pixel_variance16x8_wmt
-(
-    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;
-
-    if (xoffset == 4 && yoffset == 0)
-    {
-        vp8_half_horiz_variance16x_h_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 8,
-            &xsum0, &xxsum0);
-    }
-    else if (xoffset == 0 && yoffset == 4)
-    {
-        vp8_half_vert_variance16x_h_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 8,
-            &xsum0, &xxsum0);
-    }
-    else if (xoffset == 4 && yoffset == 4)
-    {
-        vp8_half_horiz_vert_variance16x_h_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 8,
-            &xsum0, &xxsum0);
-    }
-    else
-    {
-        vp8_filter_block2d_bil_var_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 8,
-            xoffset, yoffset,
-            &xsum0, &xxsum0);
-
-        vp8_filter_block2d_bil_var_sse2(
-            src_ptr + 8, src_pixels_per_line,
-            dst_ptr + 8, dst_pixels_per_line, 8,
-            xoffset, yoffset,
-            &xsum1, &xxsum1);
-        xsum0 += xsum1;
-        xxsum0 += xxsum1;
-    }
-
-    *sse = xxsum0;
-    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 7));
-}
-
-unsigned int vp8_sub_pixel_variance8x16_wmt
-(
-    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;
-
-    if (xoffset == 4 && yoffset == 0)
-    {
-        vp8_half_horiz_variance8x_h_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 16,
-            &xsum, &xxsum);
-    }
-    else if (xoffset == 0 && yoffset == 4)
-    {
-        vp8_half_vert_variance8x_h_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 16,
-            &xsum, &xxsum);
-    }
-    else if (xoffset == 4 && yoffset == 4)
-    {
-        vp8_half_horiz_vert_variance8x_h_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 16,
-            &xsum, &xxsum);
-    }
-    else
-    {
-        vp8_filter_block2d_bil_var_sse2(
-            src_ptr, src_pixels_per_line,
-            dst_ptr, dst_pixels_per_line, 16,
-            xoffset, yoffset,
-            &xsum, &xxsum);
-    }
-
-    *sse = xxsum;
-    return (xxsum - (((unsigned int)xsum * xsum) >> 7));
-}
-
-
-unsigned int vp8_variance_halfpixvar16x16_h_wmt(
-    const unsigned char *src_ptr,
-    int  src_pixels_per_line,
-    const unsigned char *dst_ptr,
-    int  dst_pixels_per_line,
-    unsigned int *sse)
-{
-    int xsum0;
-    unsigned int xxsum0;
-
-    vp8_half_horiz_variance16x_h_sse2(
-        src_ptr, src_pixels_per_line,
-        dst_ptr, dst_pixels_per_line, 16,
-        &xsum0, &xxsum0);
-
-    *sse = xxsum0;
-    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
-}
-
-
-unsigned int vp8_variance_halfpixvar16x16_v_wmt(
-    const unsigned char *src_ptr,
-    int  src_pixels_per_line,
-    const unsigned char *dst_ptr,
-    int  dst_pixels_per_line,
-    unsigned int *sse)
-{
-    int xsum0;
-    unsigned int xxsum0;
-    vp8_half_vert_variance16x_h_sse2(
-        src_ptr, src_pixels_per_line,
-        dst_ptr, dst_pixels_per_line, 16,
-        &xsum0, &xxsum0);
-
-    *sse = xxsum0;
-    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
-}
-
-
-unsigned int vp8_variance_halfpixvar16x16_hv_wmt(
-    const unsigned char *src_ptr,
-    int  src_pixels_per_line,
-    const unsigned char *dst_ptr,
-    int  dst_pixels_per_line,
-    unsigned int *sse)
-{
-    int xsum0;
-    unsigned int xxsum0;
-
-    vp8_half_horiz_vert_variance16x_h_sse2(
-        src_ptr, src_pixels_per_line,
-        dst_ptr, dst_pixels_per_line, 16,
-        &xsum0, &xxsum0);
-
-    *sse = xxsum0;
-    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
-}
--- /dev/null
+++ b/vp8/common/x86/vp8_variance_impl_mmx.asm
@@ -1,0 +1,353 @@
+;
+;  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 "vpx_ports/x86_abi_support.asm"
+
+%define mmx_filter_shift            7
+
+;void vp8_filter_block2d_bil4x4_var_mmx
+;(
+;    unsigned char *ref_ptr,
+;    int ref_pixels_per_line,
+;    unsigned char *src_ptr,
+;    int src_pixels_per_line,
+;    unsigned short *HFilter,
+;    unsigned short *VFilter,
+;    int *sum,
+;    unsigned int *sumsquared
+;)
+global sym(vp8_filter_block2d_bil4x4_var_mmx) PRIVATE
+sym(vp8_filter_block2d_bil4x4_var_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 8
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    sub         rsp, 16
+    ; end prolog
+
+
+        pxor            mm6,            mm6                 ;
+        pxor            mm7,            mm7                 ;
+
+        mov             rax,            arg(4) ;HFilter             ;
+        mov             rdx,            arg(5) ;VFilter             ;
+
+        mov             rsi,            arg(0) ;ref_ptr              ;
+        mov             rdi,            arg(2) ;src_ptr              ;
+
+        mov             rcx,            4                   ;
+        pxor            mm0,            mm0                 ;
+
+        movd            mm1,            [rsi]               ;
+        movd            mm3,            [rsi+1]             ;
+
+        punpcklbw       mm1,            mm0                 ;
+        pmullw          mm1,            [rax]               ;
+
+        punpcklbw       mm3,            mm0                 ;
+        pmullw          mm3,            [rax+8]             ;
+
+        paddw           mm1,            mm3                 ;
+        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
+
+        psraw           mm1,            mmx_filter_shift    ;
+        movq            mm5,            mm1
+
+%if ABI_IS_32BIT
+        add             rsi, dword ptr  arg(1) ;ref_pixels_per_line    ;
+%else
+        movsxd          r8, dword ptr  arg(1) ;ref_pixels_per_line    ;
+        add             rsi, r8
+%endif
+
+.filter_block2d_bil4x4_var_mmx_loop:
+
+        movd            mm1,            [rsi]               ;
+        movd            mm3,            [rsi+1]             ;
+
+        punpcklbw       mm1,            mm0                 ;
+        pmullw          mm1,            [rax]               ;
+
+        punpcklbw       mm3,            mm0                 ;
+        pmullw          mm3,            [rax+8]             ;
+
+        paddw           mm1,            mm3                 ;
+        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
+
+        psraw           mm1,            mmx_filter_shift    ;
+        movq            mm3,            mm5                 ;
+
+        movq            mm5,            mm1                 ;
+        pmullw          mm3,            [rdx]               ;
+
+        pmullw          mm1,            [rdx+8]             ;
+        paddw           mm1,            mm3                 ;
+
+
+        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
+        psraw           mm1,            mmx_filter_shift    ;
+
+        movd            mm3,            [rdi]               ;
+        punpcklbw       mm3,            mm0                 ;
+
+        psubw           mm1,            mm3                 ;
+        paddw           mm6,            mm1                 ;
+
+        pmaddwd         mm1,            mm1                 ;
+        paddd           mm7,            mm1                 ;
+
+%if ABI_IS_32BIT
+        add             rsi,            dword ptr arg(1) ;ref_pixels_per_line    ;
+        add             rdi,            dword ptr arg(3) ;src_pixels_per_line    ;
+%else
+        movsxd          r8,             dword ptr arg(1) ;ref_pixels_per_line
+        movsxd          r9,             dword ptr arg(3) ;src_pixels_per_line
+        add             rsi,            r8
+        add             rdi,            r9
+%endif
+        sub             rcx,            1                   ;
+        jnz             .filter_block2d_bil4x4_var_mmx_loop       ;
+
+
+        pxor            mm3,            mm3                 ;
+        pxor            mm2,            mm2                 ;
+
+        punpcklwd       mm2,            mm6                 ;
+        punpckhwd       mm3,            mm6                 ;
+
+        paddd           mm2,            mm3                 ;
+        movq            mm6,            mm2                 ;
+
+        psrlq           mm6,            32                  ;
+        paddd           mm2,            mm6                 ;
+
+        psrad           mm2,            16                  ;
+        movq            mm4,            mm7                 ;
+
+        psrlq           mm4,            32                  ;
+        paddd           mm4,            mm7                 ;
+
+        mov             rdi,            arg(6) ;sum
+        mov             rsi,            arg(7) ;sumsquared
+
+        movd            dword ptr [rdi],          mm2                 ;
+        movd            dword ptr [rsi],          mm4                 ;
+
+
+
+    ; begin epilog
+    add rsp, 16
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+
+
+;void vp8_filter_block2d_bil_var_mmx
+;(
+;    unsigned char *ref_ptr,
+;    int ref_pixels_per_line,
+;    unsigned char *src_ptr,
+;    int src_pixels_per_line,
+;    unsigned int Height,
+;    unsigned short *HFilter,
+;    unsigned short *VFilter,
+;    int *sum,
+;    unsigned int *sumsquared
+;)
+global sym(vp8_filter_block2d_bil_var_mmx) PRIVATE
+sym(vp8_filter_block2d_bil_var_mmx):
+    push        rbp
+    mov         rbp, rsp
+    SHADOW_ARGS_TO_STACK 9
+    GET_GOT     rbx
+    push rsi
+    push rdi
+    sub         rsp, 16
+    ; end prolog
+
+        pxor            mm6,            mm6                 ;
+        pxor            mm7,            mm7                 ;
+        mov             rax,            arg(5) ;HFilter             ;
+
+        mov             rdx,            arg(6) ;VFilter             ;
+        mov             rsi,            arg(0) ;ref_ptr              ;
+
+        mov             rdi,            arg(2) ;src_ptr              ;
+        movsxd          rcx,            dword ptr arg(4) ;Height              ;
+
+        pxor            mm0,            mm0                 ;
+        movq            mm1,            [rsi]               ;
+
+        movq            mm3,            [rsi+1]             ;
+        movq            mm2,            mm1                 ;
+
+        movq            mm4,            mm3                 ;
+        punpcklbw       mm1,            mm0                 ;
+
+        punpckhbw       mm2,            mm0                 ;
+        pmullw          mm1,            [rax]               ;
+
+        pmullw          mm2,            [rax]               ;
+        punpcklbw       mm3,            mm0                 ;
+
+        punpckhbw       mm4,            mm0                 ;
+        pmullw          mm3,            [rax+8]             ;
+
+        pmullw          mm4,            [rax+8]             ;
+        paddw           mm1,            mm3                 ;
+
+        paddw           mm2,            mm4                 ;
+        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
+
+        psraw           mm1,            mmx_filter_shift    ;
+        paddw           mm2,            [GLOBAL(mmx_bi_rd)] ;
+
+        psraw           mm2,            mmx_filter_shift    ;
+        movq            mm5,            mm1
+
+        packuswb        mm5,            mm2                 ;
+%if ABI_IS_32BIT
+        add             rsi,            dword ptr arg(1) ;ref_pixels_per_line
+%else
+        movsxd          r8,             dword ptr arg(1) ;ref_pixels_per_line
+        add             rsi,            r8
+%endif
+
+.filter_block2d_bil_var_mmx_loop:
+
+        movq            mm1,            [rsi]               ;
+        movq            mm3,            [rsi+1]             ;
+
+        movq            mm2,            mm1                 ;
+        movq            mm4,            mm3                 ;
+
+        punpcklbw       mm1,            mm0                 ;
+        punpckhbw       mm2,            mm0                 ;
+
+        pmullw          mm1,            [rax]               ;
+        pmullw          mm2,            [rax]               ;
+
+        punpcklbw       mm3,            mm0                 ;
+        punpckhbw       mm4,            mm0                 ;
+
+        pmullw          mm3,            [rax+8]             ;
+        pmullw          mm4,            [rax+8]             ;
+
+        paddw           mm1,            mm3                 ;
+        paddw           mm2,            mm4                 ;
+
+        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
+        psraw           mm1,            mmx_filter_shift    ;
+
+        paddw           mm2,            [GLOBAL(mmx_bi_rd)] ;
+        psraw           mm2,            mmx_filter_shift    ;
+
+        movq            mm3,            mm5                 ;
+        movq            mm4,            mm5                 ;
+
+        punpcklbw       mm3,            mm0                 ;
+        punpckhbw       mm4,            mm0                 ;
+
+        movq            mm5,            mm1                 ;
+        packuswb        mm5,            mm2                 ;
+
+        pmullw          mm3,            [rdx]               ;
+        pmullw          mm4,            [rdx]               ;
+
+        pmullw          mm1,            [rdx+8]             ;
+        pmullw          mm2,            [rdx+8]             ;
+
+        paddw           mm1,            mm3                 ;
+        paddw           mm2,            mm4                 ;
+
+        paddw           mm1,            [GLOBAL(mmx_bi_rd)] ;
+        paddw           mm2,            [GLOBAL(mmx_bi_rd)] ;
+
+        psraw           mm1,            mmx_filter_shift    ;
+        psraw           mm2,            mmx_filter_shift    ;
+
+        movq            mm3,            [rdi]               ;
+        movq            mm4,            mm3                 ;
+
+        punpcklbw       mm3,            mm0                 ;
+        punpckhbw       mm4,            mm0                 ;
+
+        psubw           mm1,            mm3                 ;
+        psubw           mm2,            mm4                 ;
+
+        paddw           mm6,            mm1                 ;
+        pmaddwd         mm1,            mm1                 ;
+
+        paddw           mm6,            mm2                 ;
+        pmaddwd         mm2,            mm2                 ;
+
+        paddd           mm7,            mm1                 ;
+        paddd           mm7,            mm2                 ;
+
+%if ABI_IS_32BIT
+        add             rsi,            dword ptr arg(1) ;ref_pixels_per_line    ;
+        add             rdi,            dword ptr arg(3) ;src_pixels_per_line    ;
+%else
+        movsxd          r8,             dword ptr arg(1) ;ref_pixels_per_line    ;
+        movsxd          r9,             dword ptr arg(3) ;src_pixels_per_line    ;
+        add             rsi,            r8
+        add             rdi,            r9
+%endif
+        sub             rcx,            1                   ;
+        jnz             .filter_block2d_bil_var_mmx_loop       ;
+
+
+        pxor            mm3,            mm3                 ;
+        pxor            mm2,            mm2                 ;
+
+        punpcklwd       mm2,            mm6                 ;
+        punpckhwd       mm3,            mm6                 ;
+
+        paddd           mm2,            mm3                 ;
+        movq            mm6,            mm2                 ;
+
+        psrlq           mm6,            32                  ;
+        paddd           mm2,            mm6                 ;
+
+        psrad           mm2,            16                  ;
+        movq            mm4,            mm7                 ;
+
+        psrlq           mm4,            32                  ;
+        paddd           mm4,            mm7                 ;
+
+        mov             rdi,            arg(7) ;sum
+        mov             rsi,            arg(8) ;sumsquared
+
+        movd            dword ptr [rdi],          mm2                 ;
+        movd            dword ptr [rsi],          mm4                 ;
+
+    ; begin epilog
+    add rsp, 16
+    pop rdi
+    pop rsi
+    RESTORE_GOT
+    UNSHADOW_ARGS
+    pop         rbp
+    ret
+
+
+SECTION_RODATA
+;short mmx_bi_rd[4] = { 64, 64, 64, 64};
+align 16
+mmx_bi_rd:
+    times 4 dw 64
--- /dev/null
+++ b/vp8/common/x86/vp8_variance_mmx.c
@@ -1,0 +1,244 @@
+/*
+ *  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);
+}
--- /dev/null
+++ b/vp8/common/x86/vp8_variance_sse2.c
@@ -1,0 +1,403 @@
+/*
+ *  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 filter_block1d8_h6_sse2(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_block1d8_v6_sse2(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
+);
+
+void vp8_filter_block2d_bil_var_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int  xoffset,
+    int  yoffset,
+    int *sum,
+    unsigned int *sumsquared
+);
+void vp8_half_horiz_vert_variance8x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+void vp8_half_horiz_vert_variance16x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+void vp8_half_horiz_variance8x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+void vp8_half_horiz_variance16x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+void vp8_half_vert_variance8x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+void vp8_half_vert_variance16x_h_sse2
+(
+    const unsigned char *ref_ptr,
+    int ref_pixels_per_line,
+    const unsigned char *src_ptr,
+    int src_pixels_per_line,
+    unsigned int Height,
+    int *sum,
+    unsigned int *sumsquared
+);
+
+unsigned int vp8_sub_pixel_variance4x4_wmt
+(
+    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_wmt
+(
+    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;
+
+    if (xoffset == 4 && yoffset == 0)
+    {
+        vp8_half_horiz_variance8x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum, &xxsum);
+    }
+    else if (xoffset == 0 && yoffset == 4)
+    {
+        vp8_half_vert_variance8x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum, &xxsum);
+    }
+    else if (xoffset == 4 && yoffset == 4)
+    {
+        vp8_half_horiz_vert_variance8x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum, &xxsum);
+    }
+    else
+    {
+        vp8_filter_block2d_bil_var_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            xoffset, yoffset,
+            &xsum, &xxsum);
+    }
+
+    *sse = xxsum;
+    return (xxsum - (((unsigned int)xsum * xsum) >> 6));
+}
+
+unsigned int vp8_sub_pixel_variance16x16_wmt
+(
+    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;
+
+
+    /* note we could avoid these if statements if the calling function
+     * just called the appropriate functions inside.
+     */
+    if (xoffset == 4 && yoffset == 0)
+    {
+        vp8_half_horiz_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum0, &xxsum0);
+    }
+    else if (xoffset == 0 && yoffset == 4)
+    {
+        vp8_half_vert_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum0, &xxsum0);
+    }
+    else if (xoffset == 4 && yoffset == 4)
+    {
+        vp8_half_horiz_vert_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum0, &xxsum0);
+    }
+    else
+    {
+        vp8_filter_block2d_bil_var_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            xoffset, yoffset,
+            &xsum0, &xxsum0
+        );
+
+        vp8_filter_block2d_bil_var_sse2(
+            src_ptr + 8, src_pixels_per_line,
+            dst_ptr + 8, dst_pixels_per_line, 16,
+            xoffset, yoffset,
+            &xsum1, &xxsum1
+        );
+        xsum0 += xsum1;
+        xxsum0 += xxsum1;
+    }
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
+}
+
+unsigned int vp8_sub_pixel_variance16x8_wmt
+(
+    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;
+
+    if (xoffset == 4 && yoffset == 0)
+    {
+        vp8_half_horiz_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum0, &xxsum0);
+    }
+    else if (xoffset == 0 && yoffset == 4)
+    {
+        vp8_half_vert_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum0, &xxsum0);
+    }
+    else if (xoffset == 4 && yoffset == 4)
+    {
+        vp8_half_horiz_vert_variance16x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            &xsum0, &xxsum0);
+    }
+    else
+    {
+        vp8_filter_block2d_bil_var_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 8,
+            xoffset, yoffset,
+            &xsum0, &xxsum0);
+
+        vp8_filter_block2d_bil_var_sse2(
+            src_ptr + 8, src_pixels_per_line,
+            dst_ptr + 8, dst_pixels_per_line, 8,
+            xoffset, yoffset,
+            &xsum1, &xxsum1);
+        xsum0 += xsum1;
+        xxsum0 += xxsum1;
+    }
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 7));
+}
+
+unsigned int vp8_sub_pixel_variance8x16_wmt
+(
+    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;
+
+    if (xoffset == 4 && yoffset == 0)
+    {
+        vp8_half_horiz_variance8x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum, &xxsum);
+    }
+    else if (xoffset == 0 && yoffset == 4)
+    {
+        vp8_half_vert_variance8x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum, &xxsum);
+    }
+    else if (xoffset == 4 && yoffset == 4)
+    {
+        vp8_half_horiz_vert_variance8x_h_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            &xsum, &xxsum);
+    }
+    else
+    {
+        vp8_filter_block2d_bil_var_sse2(
+            src_ptr, src_pixels_per_line,
+            dst_ptr, dst_pixels_per_line, 16,
+            xoffset, yoffset,
+            &xsum, &xxsum);
+    }
+
+    *sse = xxsum;
+    return (xxsum - (((unsigned int)xsum * xsum) >> 7));
+}
+
+
+unsigned int vp8_variance_halfpixvar16x16_h_wmt(
+    const unsigned char *src_ptr,
+    int  src_pixels_per_line,
+    const unsigned char *dst_ptr,
+    int  dst_pixels_per_line,
+    unsigned int *sse)
+{
+    int xsum0;
+    unsigned int xxsum0;
+
+    vp8_half_horiz_variance16x_h_sse2(
+        src_ptr, src_pixels_per_line,
+        dst_ptr, dst_pixels_per_line, 16,
+        &xsum0, &xxsum0);
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
+}
+
+
+unsigned int vp8_variance_halfpixvar16x16_v_wmt(
+    const unsigned char *src_ptr,
+    int  src_pixels_per_line,
+    const unsigned char *dst_ptr,
+    int  dst_pixels_per_line,
+    unsigned int *sse)
+{
+    int xsum0;
+    unsigned int xxsum0;
+    vp8_half_vert_variance16x_h_sse2(
+        src_ptr, src_pixels_per_line,
+        dst_ptr, dst_pixels_per_line, 16,
+        &xsum0, &xxsum0);
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
+}
+
+
+unsigned int vp8_variance_halfpixvar16x16_hv_wmt(
+    const unsigned char *src_ptr,
+    int  src_pixels_per_line,
+    const unsigned char *dst_ptr,
+    int  dst_pixels_per_line,
+    unsigned int *sse)
+{
+    int xsum0;
+    unsigned int xxsum0;
+
+    vp8_half_horiz_vert_variance16x_h_sse2(
+        src_ptr, src_pixels_per_line,
+        dst_ptr, dst_pixels_per_line, 16,
+        &xsum0, &xxsum0);
+
+    *sse = xxsum0;
+    return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 8));
+}
--- a/vp8/vp8_common.mk
+++ b/vp8/vp8_common.mk
@@ -86,8 +86,8 @@
 VP8_COMMON_SRCS-$(HAVE_MMX) += common/x86/loopfilter_mmx.asm
 VP8_COMMON_SRCS-$(HAVE_MMX) += common/x86/recon_mmx.asm
 VP8_COMMON_SRCS-$(HAVE_MMX) += common/x86/subpixel_mmx.asm
-VP8_COMMON_SRCS-$(HAVE_MMX) += common/x86/variance_mmx.c
-VP8_COMMON_SRCS-$(HAVE_MMX) += common/x86/variance_impl_mmx.asm
+VP8_COMMON_SRCS-$(HAVE_MMX) += common/x86/vp8_variance_mmx.c
+VP8_COMMON_SRCS-$(HAVE_MMX) += common/x86/vp8_variance_impl_mmx.asm
 VP8_COMMON_SRCS-$(HAVE_SSE2) += common/x86/copy_sse2.asm
 VP8_COMMON_SRCS-$(HAVE_SSE2) += common/x86/idct_blk_sse2.c
 VP8_COMMON_SRCS-$(HAVE_SSE2) += common/x86/idctllm_sse2.asm
@@ -96,7 +96,7 @@
 VP8_COMMON_SRCS-$(HAVE_SSE2) += common/x86/subpixel_sse2.asm
 VP8_COMMON_SRCS-$(HAVE_SSE2) += common/x86/loopfilter_sse2.asm
 VP8_COMMON_SRCS-$(HAVE_SSE2) += common/x86/iwalsh_sse2.asm
-VP8_COMMON_SRCS-$(HAVE_SSE2) += common/x86/variance_sse2.c
+VP8_COMMON_SRCS-$(HAVE_SSE2) += common/x86/vp8_variance_sse2.c
 VP8_COMMON_SRCS-$(HAVE_SSE2) += common/x86/variance_impl_sse2.asm
 VP8_COMMON_SRCS-$(HAVE_SSE3) += common/x86/copy_sse3.asm
 VP8_COMMON_SRCS-$(HAVE_SSSE3) += common/x86/subpixel_ssse3.asm