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 #include "vpx_config.h" 12 #include "vp8/encoder/variance.h" 13 #include "vp8/common/filter.h" 14 #include "vp8/common/arm/bilinearfilter_arm.h" 15 16 #if HAVE_ARMV6 17 18 unsigned int vp8_sub_pixel_variance8x8_armv6 19 ( 20 const unsigned char *src_ptr, 21 int src_pixels_per_line, 22 int xoffset, 23 int yoffset, 24 const unsigned char *dst_ptr, 25 int dst_pixels_per_line, 26 unsigned int *sse 27 ) 28 { 29 unsigned short first_pass[10*8]; 30 unsigned char second_pass[8*8]; 31 const short *HFilter, *VFilter; 32 33 HFilter = vp8_bilinear_filters[xoffset]; 34 VFilter = vp8_bilinear_filters[yoffset]; 35 36 vp8_filter_block2d_bil_first_pass_armv6(src_ptr, first_pass, 37 src_pixels_per_line, 38 9, 8, HFilter); 39 vp8_filter_block2d_bil_second_pass_armv6(first_pass, second_pass, 40 8, 8, 8, VFilter); 41 42 return vp8_variance8x8_armv6(second_pass, 8, dst_ptr, 43 dst_pixels_per_line, sse); 44 } 45 46 unsigned int vp8_sub_pixel_variance16x16_armv6 47 ( 48 const unsigned char *src_ptr, 49 int src_pixels_per_line, 50 int xoffset, 51 int yoffset, 52 const unsigned char *dst_ptr, 53 int dst_pixels_per_line, 54 unsigned int *sse 55 ) 56 { 57 unsigned short first_pass[36*16]; 58 unsigned char second_pass[20*16]; 59 const short *HFilter, *VFilter; 60 unsigned int var; 61 62 if (xoffset == 4 && yoffset == 0) 63 { 64 var = vp8_variance_halfpixvar16x16_h_armv6(src_ptr, src_pixels_per_line, 65 dst_ptr, dst_pixels_per_line, sse); 66 } 67 else if (xoffset == 0 && yoffset == 4) 68 { 69 var = vp8_variance_halfpixvar16x16_v_armv6(src_ptr, src_pixels_per_line, 70 dst_ptr, dst_pixels_per_line, sse); 71 } 72 else if (xoffset == 4 && yoffset == 4) 73 { 74 var = vp8_variance_halfpixvar16x16_hv_armv6(src_ptr, src_pixels_per_line, 75 dst_ptr, dst_pixels_per_line, sse); 76 } 77 else 78 { 79 HFilter = vp8_bilinear_filters[xoffset]; 80 VFilter = vp8_bilinear_filters[yoffset]; 81 82 vp8_filter_block2d_bil_first_pass_armv6(src_ptr, first_pass, 83 src_pixels_per_line, 84 17, 16, HFilter); 85 vp8_filter_block2d_bil_second_pass_armv6(first_pass, second_pass, 86 16, 16, 16, VFilter); 87 88 var = vp8_variance16x16_armv6(second_pass, 16, dst_ptr, 89 dst_pixels_per_line, sse); 90 } 91 return var; 92 } 93 94 #endif /* HAVE_ARMV6 */ 95 96 97 #if HAVE_ARMV7 98 99 unsigned int vp8_sub_pixel_variance16x16_neon 100 ( 101 const unsigned char *src_ptr, 102 int src_pixels_per_line, 103 int xoffset, 104 int yoffset, 105 const unsigned char *dst_ptr, 106 int dst_pixels_per_line, 107 unsigned int *sse 108 ) 109 { 110 if (xoffset == 4 && yoffset == 0) 111 return vp8_variance_halfpixvar16x16_h_neon(src_ptr, src_pixels_per_line, dst_ptr, dst_pixels_per_line, sse); 112 else if (xoffset == 0 && yoffset == 4) 113 return vp8_variance_halfpixvar16x16_v_neon(src_ptr, src_pixels_per_line, dst_ptr, dst_pixels_per_line, sse); 114 else if (xoffset == 4 && yoffset == 4) 115 return vp8_variance_halfpixvar16x16_hv_neon(src_ptr, src_pixels_per_line, dst_ptr, dst_pixels_per_line, sse); 116 else 117 return vp8_sub_pixel_variance16x16_neon_func(src_ptr, src_pixels_per_line, xoffset, yoffset, dst_ptr, dst_pixels_per_line, sse); 118 } 119 120 #endif 121
