ref: cba980e3eb375261635b9332d99137c0b6b32b5f
dir: /vp8/common/arm/filter_arm.c/
/* * 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 "vp8/common/filter.h" #include "vp8/common/subpixel.h" #include "vpx_ports/mem.h" 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 buffer used in filtering */ HFilter = vp8_sub_pel_filters[xoffset]; /* 6 tap */ VFilter = vp8_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); } } } 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 buffer used in filtering */ HFilter = vp8_sub_pel_filters[xoffset]; /* 6 tap */ VFilter = vp8_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 buffer used in filtering */ HFilter = vp8_sub_pel_filters[xoffset]; /* 6 tap */ VFilter = vp8_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