419f638910
Rewrote these functions to process 16 pixels once instead of 8. Change-Id: Ic67e80124467a446a3df4cfecfb76a4248602adb
117 lines
3.0 KiB
C
117 lines
3.0 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "vp8/encoder/variance.h"
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#include "vp8/common/pragmas.h"
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#include "vpx_ports/mem.h"
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extern unsigned int vp8_get16x16var_sse2
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(
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const unsigned char *src_ptr,
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int source_stride,
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const unsigned char *ref_ptr,
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int recon_stride,
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unsigned int *SSE,
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int *Sum
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);
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extern void vp8_half_horiz_vert_variance16x_h_sse2
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(
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const unsigned char *ref_ptr,
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int ref_pixels_per_line,
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const unsigned char *src_ptr,
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int src_pixels_per_line,
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unsigned int Height,
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int *sum,
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unsigned int *sumsquared
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);
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extern void vp8_half_horiz_variance16x_h_sse2
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(
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const unsigned char *ref_ptr,
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int ref_pixels_per_line,
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const unsigned char *src_ptr,
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int src_pixels_per_line,
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unsigned int Height,
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int *sum,
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unsigned int *sumsquared
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);
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extern void vp8_half_vert_variance16x_h_sse2
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(
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const unsigned char *ref_ptr,
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int ref_pixels_per_line,
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const unsigned char *src_ptr,
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int src_pixels_per_line,
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unsigned int Height,
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int *sum,
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unsigned int *sumsquared
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);
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extern void vp8_filter_block2d_bil_var_ssse3
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(
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const unsigned char *ref_ptr,
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int ref_pixels_per_line,
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const unsigned char *src_ptr,
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int src_pixels_per_line,
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unsigned int Height,
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int xoffset,
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int yoffset,
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int *sum,
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unsigned int *sumsquared
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);
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unsigned int vp8_sub_pixel_variance16x16_ssse3
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(
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const unsigned char *src_ptr,
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int src_pixels_per_line,
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int xoffset,
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int yoffset,
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const unsigned char *dst_ptr,
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int dst_pixels_per_line,
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unsigned int *sse
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)
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{
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int xsum0, xsum1;
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unsigned int xxsum0, xxsum1;
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// note we could avoid these if statements if the calling function
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// just called the appropriate functions inside.
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if (xoffset == 4 && yoffset == 0)
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{
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vp8_half_horiz_variance16x_h_sse2(
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src_ptr, src_pixels_per_line,
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dst_ptr, dst_pixels_per_line, 16,
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&xsum0, &xxsum0);
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}
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else if (xoffset == 0 && yoffset == 4)
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{
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vp8_half_vert_variance16x_h_sse2(
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src_ptr, src_pixels_per_line,
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dst_ptr, dst_pixels_per_line, 16,
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&xsum0, &xxsum0);
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}
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else if (xoffset == 4 && yoffset == 4)
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{
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vp8_half_horiz_vert_variance16x_h_sse2(
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src_ptr, src_pixels_per_line,
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dst_ptr, dst_pixels_per_line, 16,
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&xsum0, &xxsum0);
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}
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else
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{
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vp8_filter_block2d_bil_var_ssse3(
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src_ptr, src_pixels_per_line,
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dst_ptr, dst_pixels_per_line, 16,
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xoffset, yoffset,
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&xsum0, &xxsum0);
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}
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*sse = xxsum0;
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return (xxsum0 - ((xsum0 * xsum0) >> 8));
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}
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