91 lines
3.8 KiB
C
91 lines
3.8 KiB
C
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/*
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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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#define HALFNDX 8
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void vp9_half_horiz_variance16x_h_sse2(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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void vp9_half_vert_variance16x_h_sse2(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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void vp9_half_horiz_vert_variance16x_h_sse2(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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void vp9_filter_block2d_bil_var_sse2(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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unsigned int vp9_sub_pixel_variance16x2_sse2(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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int xsum0, xsum1;
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unsigned int xxsum0, xxsum1;
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if (xoffset == HALFNDX && yoffset == 0) {
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vp9_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, 2,
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&xsum0, &xxsum0);
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} else if (xoffset == 0 && yoffset == HALFNDX) {
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vp9_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, 2,
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&xsum0, &xxsum0);
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} else if (xoffset == HALFNDX && yoffset == HALFNDX) {
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vp9_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, 2,
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&xsum0, &xxsum0);
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} else {
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vp9_filter_block2d_bil_var_sse2(
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src_ptr, src_pixels_per_line,
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dst_ptr, dst_pixels_per_line, 2,
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xoffset, yoffset,
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&xsum0, &xxsum0);
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vp9_filter_block2d_bil_var_sse2(
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src_ptr + 8, src_pixels_per_line,
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dst_ptr + 8, dst_pixels_per_line, 2,
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xoffset, yoffset,
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&xsum1, &xxsum1);
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xsum0 += xsum1;
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xxsum0 += xxsum1;
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}
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*sse = xxsum0;
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return (xxsum0 - (((unsigned int)xsum0 * xsum0) >> 5));
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}
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