f5e433464b
Half pixel interpolations optimized in variance calculations. Separate function calls to vp8_filter_block2d_bil_x_pass_armv6 are avoided.On average, performance improvement is 6-7% for VGA@30fps sequences. Change-Id: Idb5f118a9d51548e824719d2cfe5be0fa6996628
121 lines
3.9 KiB
C
121 lines
3.9 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 "vpx_config.h"
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#include "vp8/encoder/variance.h"
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#include "vp8/common/filter.h"
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#include "vp8/common/arm/bilinearfilter_arm.h"
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#if HAVE_ARMV6
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unsigned int vp8_sub_pixel_variance8x8_armv6
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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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unsigned short first_pass[10*8];
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unsigned char second_pass[8*8];
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const short *HFilter, *VFilter;
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HFilter = vp8_bilinear_filters[xoffset];
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VFilter = vp8_bilinear_filters[yoffset];
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vp8_filter_block2d_bil_first_pass_armv6(src_ptr, first_pass,
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src_pixels_per_line,
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9, 8, HFilter);
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vp8_filter_block2d_bil_second_pass_armv6(first_pass, second_pass,
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8, 8, 8, VFilter);
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return vp8_variance8x8_armv6(second_pass, 8, dst_ptr,
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dst_pixels_per_line, sse);
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}
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unsigned int vp8_sub_pixel_variance16x16_armv6
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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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unsigned short first_pass[36*16];
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unsigned char second_pass[20*16];
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const short *HFilter, *VFilter;
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unsigned int var;
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if (xoffset == 4 && yoffset == 0)
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{
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var = vp8_variance_halfpixvar16x16_h_armv6(src_ptr, src_pixels_per_line,
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dst_ptr, dst_pixels_per_line, sse);
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}
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else if (xoffset == 0 && yoffset == 4)
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{
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var = vp8_variance_halfpixvar16x16_v_armv6(src_ptr, src_pixels_per_line,
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dst_ptr, dst_pixels_per_line, sse);
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}
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else if (xoffset == 4 && yoffset == 4)
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{
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var = vp8_variance_halfpixvar16x16_hv_armv6(src_ptr, src_pixels_per_line,
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dst_ptr, dst_pixels_per_line, sse);
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}
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else
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{
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HFilter = vp8_bilinear_filters[xoffset];
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VFilter = vp8_bilinear_filters[yoffset];
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vp8_filter_block2d_bil_first_pass_armv6(src_ptr, first_pass,
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src_pixels_per_line,
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17, 16, HFilter);
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vp8_filter_block2d_bil_second_pass_armv6(first_pass, second_pass,
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16, 16, 16, VFilter);
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var = vp8_variance16x16_armv6(second_pass, 16, dst_ptr,
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dst_pixels_per_line, sse);
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}
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return var;
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}
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#endif /* HAVE_ARMV6 */
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#if HAVE_ARMV7
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unsigned int vp8_sub_pixel_variance16x16_neon
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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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if (xoffset == 4 && yoffset == 0)
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return vp8_variance_halfpixvar16x16_h_neon(src_ptr, src_pixels_per_line, dst_ptr, dst_pixels_per_line, sse);
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else if (xoffset == 0 && yoffset == 4)
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return vp8_variance_halfpixvar16x16_v_neon(src_ptr, src_pixels_per_line, dst_ptr, dst_pixels_per_line, sse);
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else if (xoffset == 4 && yoffset == 4)
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return vp8_variance_halfpixvar16x16_hv_neon(src_ptr, src_pixels_per_line, dst_ptr, dst_pixels_per_line, sse);
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else
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return vp8_sub_pixel_variance16x16_neon_func(src_ptr, src_pixels_per_line, xoffset, yoffset, dst_ptr, dst_pixels_per_line, sse);
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}
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#endif
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