| /* |
| * Copyright (c) 2010 The WebM project authors. All Rights Reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| |
| #include "vpx_ports/config.h" |
| #include <math.h> |
| #include "subpixel.h" |
| #include "vpx_ports/mem.h" |
| |
| #define BLOCK_HEIGHT_WIDTH 4 |
| #define VP8_FILTER_WEIGHT 128 |
| #define VP8_FILTER_SHIFT 7 |
| |
| DECLARE_ALIGNED(16, static const short, sub_pel_filters[8][6]) = |
| { |
| { 0, 0, 128, 0, 0, 0 }, /* note that 1/8 pel positions are just as per alpha -0.5 bicubic */ |
| { 0, -6, 123, 12, -1, 0 }, |
| { 2, -11, 108, 36, -8, 1 }, /* New 1/4 pel 6 tap filter */ |
| { 0, -9, 93, 50, -6, 0 }, |
| { 3, -16, 77, 77, -16, 3 }, /* New 1/2 pel 6 tap filter */ |
| { 0, -6, 50, 93, -9, 0 }, |
| { 1, -8, 36, 108, -11, 2 }, /* New 1/4 pel 6 tap filter */ |
| { 0, -1, 12, 123, -6, 0 }, |
| }; |
| |
| |
| extern void vp8_filter_block2d_first_pass_armv6 |
| ( |
| unsigned char *src_ptr, |
| short *output_ptr, |
| unsigned int src_pixels_per_line, |
| unsigned int output_width, |
| unsigned int output_height, |
| const short *vp8_filter |
| ); |
| |
| extern void vp8_filter_block2d_second_pass_armv6 |
| ( |
| short *src_ptr, |
| unsigned char *output_ptr, |
| unsigned int output_pitch, |
| unsigned int cnt, |
| const short *vp8_filter |
| ); |
| |
| extern void vp8_filter4_block2d_second_pass_armv6 |
| ( |
| short *src_ptr, |
| unsigned char *output_ptr, |
| unsigned int output_pitch, |
| unsigned int cnt, |
| const short *vp8_filter |
| ); |
| |
| extern void vp8_filter_block2d_first_pass_only_armv6 |
| ( |
| unsigned char *src_ptr, |
| unsigned char *output_ptr, |
| unsigned int src_pixels_per_line, |
| unsigned int cnt, |
| unsigned int output_pitch, |
| const short *vp8_filter |
| ); |
| |
| |
| extern void vp8_filter_block2d_second_pass_only_armv6 |
| ( |
| unsigned char *src_ptr, |
| unsigned char *output_ptr, |
| unsigned int src_pixels_per_line, |
| unsigned int cnt, |
| unsigned int output_pitch, |
| const short *vp8_filter |
| ); |
| |
| #if HAVE_ARMV6 |
| void vp8_sixtap_predict_armv6 |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) |
| { |
| const short *HFilter; |
| const short *VFilter; |
| DECLARE_ALIGNED_ARRAY(4, short, FData, 12*4); /* Temp data bufffer used in filtering */ |
| |
| |
| HFilter = sub_pel_filters[xoffset]; /* 6 tap */ |
| VFilter = sub_pel_filters[yoffset]; /* 6 tap */ |
| |
| /* Vfilter is null. First pass only */ |
| if (xoffset && !yoffset) |
| { |
| /*vp8_filter_block2d_first_pass_armv6 ( src_ptr, FData+2, src_pixels_per_line, 4, 4, HFilter ); |
| vp8_filter_block2d_second_pass_armv6 ( FData+2, dst_ptr, dst_pitch, 4, VFilter );*/ |
| |
| vp8_filter_block2d_first_pass_only_armv6(src_ptr, dst_ptr, src_pixels_per_line, 4, dst_pitch, HFilter); |
| } |
| /* Hfilter is null. Second pass only */ |
| else if (!xoffset && yoffset) |
| { |
| vp8_filter_block2d_second_pass_only_armv6(src_ptr, dst_ptr, src_pixels_per_line, 4, dst_pitch, VFilter); |
| } |
| else |
| { |
| /* Vfilter is a 4 tap filter */ |
| if (yoffset & 0x1) |
| { |
| vp8_filter_block2d_first_pass_armv6(src_ptr - src_pixels_per_line, FData + 1, src_pixels_per_line, 4, 7, HFilter); |
| vp8_filter4_block2d_second_pass_armv6(FData + 2, dst_ptr, dst_pitch, 4, VFilter); |
| } |
| /* Vfilter is 6 tap filter */ |
| else |
| { |
| vp8_filter_block2d_first_pass_armv6(src_ptr - (2 * src_pixels_per_line), FData, src_pixels_per_line, 4, 9, HFilter); |
| vp8_filter_block2d_second_pass_armv6(FData + 2, dst_ptr, dst_pitch, 4, VFilter); |
| } |
| } |
| } |
| |
| #if 0 |
| void vp8_sixtap_predict8x4_armv6 |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) |
| { |
| const short *HFilter; |
| const short *VFilter; |
| DECLARE_ALIGNED_ARRAY(4, short, FData, 16*8); /* Temp data bufffer used in filtering */ |
| |
| HFilter = sub_pel_filters[xoffset]; /* 6 tap */ |
| VFilter = sub_pel_filters[yoffset]; /* 6 tap */ |
| |
| |
| /*if (xoffset && !yoffset) |
| { |
| vp8_filter_block2d_first_pass_only_armv6 ( src_ptr, dst_ptr, src_pixels_per_line, 8, dst_pitch, HFilter ); |
| }*/ |
| /* Hfilter is null. Second pass only */ |
| /*else if (!xoffset && yoffset) |
| { |
| vp8_filter_block2d_second_pass_only_armv6 ( src_ptr, dst_ptr, src_pixels_per_line, 8, dst_pitch, VFilter ); |
| } |
| else |
| { |
| if (yoffset & 0x1) |
| vp8_filter_block2d_first_pass_armv6 ( src_ptr-src_pixels_per_line, FData+1, src_pixels_per_line, 8, 7, HFilter ); |
| else*/ |
| |
| vp8_filter_block2d_first_pass_armv6 ( src_ptr-(2*src_pixels_per_line), FData, src_pixels_per_line, 8, 9, HFilter ); |
| |
| vp8_filter_block2d_second_pass_armv6 ( FData+2, dst_ptr, dst_pitch, 4, 8, VFilter ); |
| /*}*/ |
| } |
| #endif |
| |
| void vp8_sixtap_predict8x8_armv6 |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) |
| { |
| const short *HFilter; |
| const short *VFilter; |
| DECLARE_ALIGNED_ARRAY(4, short, FData, 16*8); /* Temp data bufffer used in filtering */ |
| |
| HFilter = sub_pel_filters[xoffset]; /* 6 tap */ |
| VFilter = sub_pel_filters[yoffset]; /* 6 tap */ |
| |
| if (xoffset && !yoffset) |
| { |
| vp8_filter_block2d_first_pass_only_armv6(src_ptr, dst_ptr, src_pixels_per_line, 8, dst_pitch, HFilter); |
| } |
| /* Hfilter is null. Second pass only */ |
| else if (!xoffset && yoffset) |
| { |
| vp8_filter_block2d_second_pass_only_armv6(src_ptr, dst_ptr, src_pixels_per_line, 8, dst_pitch, VFilter); |
| } |
| else |
| { |
| if (yoffset & 0x1) |
| { |
| vp8_filter_block2d_first_pass_armv6(src_ptr - src_pixels_per_line, FData + 1, src_pixels_per_line, 8, 11, HFilter); |
| vp8_filter4_block2d_second_pass_armv6(FData + 2, dst_ptr, dst_pitch, 8, VFilter); |
| } |
| else |
| { |
| vp8_filter_block2d_first_pass_armv6(src_ptr - (2 * src_pixels_per_line), FData, src_pixels_per_line, 8, 13, HFilter); |
| vp8_filter_block2d_second_pass_armv6(FData + 2, dst_ptr, dst_pitch, 8, VFilter); |
| } |
| } |
| } |
| |
| |
| void vp8_sixtap_predict16x16_armv6 |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) |
| { |
| const short *HFilter; |
| const short *VFilter; |
| DECLARE_ALIGNED_ARRAY(4, short, FData, 24*16); /* Temp data bufffer used in filtering */ |
| |
| HFilter = sub_pel_filters[xoffset]; /* 6 tap */ |
| VFilter = sub_pel_filters[yoffset]; /* 6 tap */ |
| |
| if (xoffset && !yoffset) |
| { |
| vp8_filter_block2d_first_pass_only_armv6(src_ptr, dst_ptr, src_pixels_per_line, 16, dst_pitch, HFilter); |
| } |
| /* Hfilter is null. Second pass only */ |
| else if (!xoffset && yoffset) |
| { |
| vp8_filter_block2d_second_pass_only_armv6(src_ptr, dst_ptr, src_pixels_per_line, 16, dst_pitch, VFilter); |
| } |
| else |
| { |
| if (yoffset & 0x1) |
| { |
| vp8_filter_block2d_first_pass_armv6(src_ptr - src_pixels_per_line, FData + 1, src_pixels_per_line, 16, 19, HFilter); |
| vp8_filter4_block2d_second_pass_armv6(FData + 2, dst_ptr, dst_pitch, 16, VFilter); |
| } |
| else |
| { |
| vp8_filter_block2d_first_pass_armv6(src_ptr - (2 * src_pixels_per_line), FData, src_pixels_per_line, 16, 21, HFilter); |
| vp8_filter_block2d_second_pass_armv6(FData + 2, dst_ptr, dst_pitch, 16, VFilter); |
| } |
| } |
| |
| } |
| #endif |
