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      1 /*
      2  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
      3  *
      4  *  Use of this source code is governed by a BSD-style license
      5  *  that can be found in the LICENSE file in the root of the source
      6  *  tree. An additional intellectual property rights grant can be found
      7  *  in the file PATENTS.  All contributing project authors may
      8  *  be found in the AUTHORS file in the root of the source tree.
      9  */
     10 
     11 
     12 #include <math.h>
     13 #include "vp8/common/filter.h"
     14 #include "vp8/common/subpixel.h"
     15 #include "bilinearfilter_arm.h"
     16 
     17 void vp8_filter_block2d_bil_armv6
     18 (
     19     unsigned char *src_ptr,
     20     unsigned char *dst_ptr,
     21     unsigned int   src_pitch,
     22     unsigned int   dst_pitch,
     23     const short   *HFilter,
     24     const short   *VFilter,
     25     int            Width,
     26     int            Height
     27 )
     28 {
     29     unsigned short FData[36*16]; /* Temp data buffer used in filtering */
     30 
     31     /* First filter 1-D horizontally... */
     32     vp8_filter_block2d_bil_first_pass_armv6(src_ptr, FData, src_pitch, Height + 1, Width, HFilter);
     33 
     34     /* then 1-D vertically... */
     35     vp8_filter_block2d_bil_second_pass_armv6(FData, dst_ptr, dst_pitch, Height, Width, VFilter);
     36 }
     37 
     38 
     39 void vp8_bilinear_predict4x4_armv6
     40 (
     41     unsigned char  *src_ptr,
     42     int   src_pixels_per_line,
     43     int  xoffset,
     44     int  yoffset,
     45     unsigned char *dst_ptr,
     46     int dst_pitch
     47 )
     48 {
     49     const short  *HFilter;
     50     const short  *VFilter;
     51 
     52     HFilter = vp8_bilinear_filters[xoffset];
     53     VFilter = vp8_bilinear_filters[yoffset];
     54 
     55     vp8_filter_block2d_bil_armv6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 4, 4);
     56 }
     57 
     58 void vp8_bilinear_predict8x8_armv6
     59 (
     60     unsigned char  *src_ptr,
     61     int  src_pixels_per_line,
     62     int  xoffset,
     63     int  yoffset,
     64     unsigned char *dst_ptr,
     65     int  dst_pitch
     66 )
     67 {
     68     const short  *HFilter;
     69     const short  *VFilter;
     70 
     71     HFilter = vp8_bilinear_filters[xoffset];
     72     VFilter = vp8_bilinear_filters[yoffset];
     73 
     74     vp8_filter_block2d_bil_armv6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 8, 8);
     75 }
     76 
     77 void vp8_bilinear_predict8x4_armv6
     78 (
     79     unsigned char  *src_ptr,
     80     int  src_pixels_per_line,
     81     int  xoffset,
     82     int  yoffset,
     83     unsigned char *dst_ptr,
     84     int  dst_pitch
     85 )
     86 {
     87     const short  *HFilter;
     88     const short  *VFilter;
     89 
     90     HFilter = vp8_bilinear_filters[xoffset];
     91     VFilter = vp8_bilinear_filters[yoffset];
     92 
     93     vp8_filter_block2d_bil_armv6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 8, 4);
     94 }
     95 
     96 void vp8_bilinear_predict16x16_armv6
     97 (
     98     unsigned char  *src_ptr,
     99     int  src_pixels_per_line,
    100     int  xoffset,
    101     int  yoffset,
    102     unsigned char *dst_ptr,
    103     int  dst_pitch
    104 )
    105 {
    106     const short  *HFilter;
    107     const short  *VFilter;
    108 
    109     HFilter = vp8_bilinear_filters[xoffset];
    110     VFilter = vp8_bilinear_filters[yoffset];
    111 
    112     vp8_filter_block2d_bil_armv6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 16, 16);
    113 }
    114