| /* |
| * 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 <stdlib.h> |
| #include "filter.h" |
| #include "vpx_ports/mem.h" |
| #include "vpx_rtcd.h" |
| |
| DECLARE_ALIGNED(16, const short, vp9_bilinear_filters[SUBPEL_SHIFTS][2]) = { |
| { 128, 0 }, |
| { 120, 8 }, |
| { 112, 16 }, |
| { 104, 24 }, |
| { 96, 32 }, |
| { 88, 40 }, |
| { 80, 48 }, |
| { 72, 56 }, |
| { 64, 64 }, |
| { 56, 72 }, |
| { 48, 80 }, |
| { 40, 88 }, |
| { 32, 96 }, |
| { 24, 104 }, |
| { 16, 112 }, |
| { 8, 120 } |
| }; |
| |
| #define FILTER_ALPHA 0 |
| #define FILTER_ALPHA_SHARP 1 |
| DECLARE_ALIGNED(16, const short, vp9_sub_pel_filters_8[SUBPEL_SHIFTS][8]) = { |
| #if FILTER_ALPHA == 0 |
| /* Lagrangian interpolation filter */ |
| { 0, 0, 0, 128, 0, 0, 0, 0}, |
| { 0, 1, -5, 126, 8, -3, 1, 0}, |
| { -1, 3, -10, 122, 18, -6, 2, 0}, |
| { -1, 4, -13, 118, 27, -9, 3, -1}, |
| { -1, 4, -16, 112, 37, -11, 4, -1}, |
| { -1, 5, -18, 105, 48, -14, 4, -1}, |
| { -1, 5, -19, 97, 58, -16, 5, -1}, |
| { -1, 6, -19, 88, 68, -18, 5, -1}, |
| { -1, 6, -19, 78, 78, -19, 6, -1}, |
| { -1, 5, -18, 68, 88, -19, 6, -1}, |
| { -1, 5, -16, 58, 97, -19, 5, -1}, |
| { -1, 4, -14, 48, 105, -18, 5, -1}, |
| { -1, 4, -11, 37, 112, -16, 4, -1}, |
| { -1, 3, -9, 27, 118, -13, 4, -1}, |
| { 0, 2, -6, 18, 122, -10, 3, -1}, |
| { 0, 1, -3, 8, 126, -5, 1, 0} |
| #elif FILTER_ALPHA == 50 |
| /* Generated using MATLAB: |
| * alpha = 0.5; |
| * b=intfilt(8,4,alpha); |
| * bi=round(128*b); |
| * ba=flipud(reshape([bi 0], 8, 8)); |
| * disp(num2str(ba, '%d,')) |
| */ |
| { 0, 0, 0, 128, 0, 0, 0, 0}, |
| { 0, 1, -5, 126, 8, -3, 1, 0}, |
| { 0, 2, -10, 122, 18, -6, 2, 0}, |
| { -1, 3, -13, 118, 27, -9, 3, 0}, |
| { -1, 4, -16, 112, 37, -11, 3, 0}, |
| { -1, 5, -17, 104, 48, -14, 4, -1}, |
| { -1, 5, -18, 96, 58, -16, 5, -1}, |
| { -1, 5, -19, 88, 68, -17, 5, -1}, |
| { -1, 5, -18, 78, 78, -18, 5, -1}, |
| { -1, 5, -17, 68, 88, -19, 5, -1}, |
| { -1, 5, -16, 58, 96, -18, 5, -1}, |
| { -1, 4, -14, 48, 104, -17, 5, -1}, |
| { 0, 3, -11, 37, 112, -16, 4, -1}, |
| { 0, 3, -9, 27, 118, -13, 3, -1}, |
| { 0, 2, -6, 18, 122, -10, 2, 0}, |
| { 0, 1, -3, 8, 126, -5, 1, 0} |
| #endif /* FILTER_ALPHA */ |
| }; |
| |
| DECLARE_ALIGNED(16, const short, vp9_sub_pel_filters_8s[SUBPEL_SHIFTS][8]) = { |
| #if FILTER_ALPHA_SHARP == 1 |
| /* dct based filter */ |
| {0, 0, 0, 128, 0, 0, 0, 0}, |
| {-1, 3, -7, 127, 8, -3, 1, 0}, |
| {-2, 5, -13, 125, 17, -6, 3, -1}, |
| {-3, 7, -17, 121, 27, -10, 5, -2}, |
| {-4, 9, -20, 115, 37, -13, 6, -2}, |
| {-4, 10, -23, 108, 48, -16, 8, -3}, |
| {-4, 10, -24, 100, 59, -19, 9, -3}, |
| {-4, 11, -24, 90, 70, -21, 10, -4}, |
| {-4, 11, -23, 80, 80, -23, 11, -4}, |
| {-4, 10, -21, 70, 90, -24, 11, -4}, |
| {-3, 9, -19, 59, 100, -24, 10, -4}, |
| {-3, 8, -16, 48, 108, -23, 10, -4}, |
| {-2, 6, -13, 37, 115, -20, 9, -4}, |
| {-2, 5, -10, 27, 121, -17, 7, -3}, |
| {-1, 3, -6, 17, 125, -13, 5, -2}, |
| {0, 1, -3, 8, 127, -7, 3, -1} |
| #elif FILTER_ALPHA_SHARP == 75 |
| /* alpha = 0.75 */ |
| {0, 0, 0, 128, 0, 0, 0, 0}, |
| {-1, 2, -6, 126, 9, -3, 2, -1}, |
| {-1, 4, -11, 123, 18, -7, 3, -1}, |
| {-2, 6, -16, 119, 28, -10, 5, -2}, |
| {-2, 7, -19, 113, 38, -13, 6, -2}, |
| {-3, 8, -21, 106, 49, -16, 7, -2}, |
| {-3, 9, -22, 99, 59, -19, 8, -3}, |
| {-3, 9, -23, 90, 70, -21, 9, -3}, |
| {-3, 9, -22, 80, 80, -22, 9, -3}, |
| {-3, 9, -21, 70, 90, -23, 9, -3}, |
| {-3, 8, -19, 59, 99, -22, 9, -3}, |
| {-2, 7, -16, 49, 106, -21, 8, -3}, |
| {-2, 6, -13, 38, 113, -19, 7, -2}, |
| {-2, 5, -10, 28, 119, -16, 6, -2}, |
| {-1, 3, -7, 18, 123, -11, 4, -1}, |
| {-1, 2, -3, 9, 126, -6, 2, -1} |
| #endif /* FILTER_ALPHA_SHARP */ |
| }; |
| |
| DECLARE_ALIGNED(16, const short, vp9_sub_pel_filters_6[SUBPEL_SHIFTS][6]) = { |
| {0, 0, 128, 0, 0, 0}, |
| {1, -5, 125, 8, -2, 1}, |
| {1, -8, 122, 17, -5, 1}, |
| {2, -11, 116, 27, -8, 2}, |
| {3, -14, 110, 37, -10, 2}, |
| {3, -15, 103, 47, -12, 2}, |
| {3, -16, 95, 57, -14, 3}, |
| {3, -16, 86, 67, -15, 3}, |
| {3, -16, 77, 77, -16, 3}, |
| {3, -15, 67, 86, -16, 3}, |
| {3, -14, 57, 95, -16, 3}, |
| {2, -12, 47, 103, -15, 3}, |
| {2, -10, 37, 110, -14, 3}, |
| {2, -8, 27, 116, -11, 2}, |
| {1, -5, 17, 122, -8, 1}, |
| {1, -2, 8, 125, -5, 1} |
| }; |
| |
| static void filter_block2d_first_pass_6 |
| ( |
| unsigned char *src_ptr, |
| int *output_ptr, |
| unsigned int src_pixels_per_line, |
| unsigned int pixel_step, |
| unsigned int output_height, |
| unsigned int output_width, |
| const short *vp9_filter |
| ) { |
| unsigned int i, j; |
| int Temp; |
| |
| for (i = 0; i < output_height; i++) { |
| for (j = 0; j < output_width; j++) { |
| Temp = ((int)src_ptr[-2 * (int)pixel_step] * vp9_filter[0]) + |
| ((int)src_ptr[-1 * (int)pixel_step] * vp9_filter[1]) + |
| ((int)src_ptr[0] * vp9_filter[2]) + |
| ((int)src_ptr[pixel_step] * vp9_filter[3]) + |
| ((int)src_ptr[2 * pixel_step] * vp9_filter[4]) + |
| ((int)src_ptr[3 * pixel_step] * vp9_filter[5]) + |
| (VP9_FILTER_WEIGHT >> 1); /* Rounding */ |
| |
| /* Normalize back to 0-255 */ |
| Temp = Temp >> VP9_FILTER_SHIFT; |
| |
| if (Temp < 0) |
| Temp = 0; |
| else if (Temp > 255) |
| Temp = 255; |
| |
| output_ptr[j] = Temp; |
| src_ptr++; |
| } |
| |
| /* Next row... */ |
| src_ptr += src_pixels_per_line - output_width; |
| output_ptr += output_width; |
| } |
| } |
| |
| static void filter_block2d_second_pass_6 |
| ( |
| int *src_ptr, |
| unsigned char *output_ptr, |
| int output_pitch, |
| unsigned int src_pixels_per_line, |
| unsigned int pixel_step, |
| unsigned int output_height, |
| unsigned int output_width, |
| const short *vp9_filter |
| ) { |
| unsigned int i, j; |
| int Temp; |
| |
| for (i = 0; i < output_height; i++) { |
| for (j = 0; j < output_width; j++) { |
| /* Apply filter */ |
| Temp = ((int)src_ptr[-2 * (int)pixel_step] * vp9_filter[0]) + |
| ((int)src_ptr[-1 * (int)pixel_step] * vp9_filter[1]) + |
| ((int)src_ptr[0] * vp9_filter[2]) + |
| ((int)src_ptr[pixel_step] * vp9_filter[3]) + |
| ((int)src_ptr[2 * pixel_step] * vp9_filter[4]) + |
| ((int)src_ptr[3 * pixel_step] * vp9_filter[5]) + |
| (VP9_FILTER_WEIGHT >> 1); /* Rounding */ |
| |
| /* Normalize back to 0-255 */ |
| Temp = Temp >> VP9_FILTER_SHIFT; |
| |
| if (Temp < 0) |
| Temp = 0; |
| else if (Temp > 255) |
| Temp = 255; |
| |
| output_ptr[j] = (unsigned char)Temp; |
| src_ptr++; |
| } |
| |
| /* Start next row */ |
| src_ptr += src_pixels_per_line - output_width; |
| output_ptr += output_pitch; |
| } |
| } |
| |
| /* |
| * The only functional difference between filter_block2d_second_pass() |
| * and this function is that filter_block2d_second_pass() does a sixtap |
| * filter on the input and stores it in the output. This function |
| * (filter_block2d_second_pass_avg()) does a sixtap filter on the input, |
| * and then averages that with the content already present in the output |
| * ((filter_result + dest + 1) >> 1) and stores that in the output. |
| */ |
| static void filter_block2d_second_pass_avg_6 |
| ( |
| int *src_ptr, |
| unsigned char *output_ptr, |
| int output_pitch, |
| unsigned int src_pixels_per_line, |
| unsigned int pixel_step, |
| unsigned int output_height, |
| unsigned int output_width, |
| const short *vp9_filter |
| ) { |
| unsigned int i, j; |
| int Temp; |
| |
| for (i = 0; i < output_height; i++) { |
| for (j = 0; j < output_width; j++) { |
| /* Apply filter */ |
| Temp = ((int)src_ptr[-2 * (int)pixel_step] * vp9_filter[0]) + |
| ((int)src_ptr[-1 * (int)pixel_step] * vp9_filter[1]) + |
| ((int)src_ptr[0] * vp9_filter[2]) + |
| ((int)src_ptr[pixel_step] * vp9_filter[3]) + |
| ((int)src_ptr[2 * pixel_step] * vp9_filter[4]) + |
| ((int)src_ptr[3 * pixel_step] * vp9_filter[5]) + |
| (VP9_FILTER_WEIGHT >> 1); /* Rounding */ |
| |
| /* Normalize back to 0-255 */ |
| Temp = Temp >> VP9_FILTER_SHIFT; |
| |
| if (Temp < 0) |
| Temp = 0; |
| else if (Temp > 255) |
| Temp = 255; |
| |
| output_ptr[j] = (unsigned char)((output_ptr[j] + Temp + 1) >> 1); |
| src_ptr++; |
| } |
| |
| /* Start next row */ |
| src_ptr += src_pixels_per_line - output_width; |
| output_ptr += output_pitch; |
| } |
| } |
| |
| #define Interp_Extend 3 |
| static void filter_block2d_6 |
| ( |
| unsigned char *src_ptr, |
| unsigned char *output_ptr, |
| unsigned int src_pixels_per_line, |
| int output_pitch, |
| const short *HFilter, |
| const short *VFilter |
| ) { |
| int FData[(3 + Interp_Extend * 2) * 4]; /* Temp data buffer used in filtering */ |
| |
| /* First filter 1-D horizontally... */ |
| filter_block2d_first_pass_6(src_ptr - ((Interp_Extend - 1) * src_pixels_per_line), FData, src_pixels_per_line, 1, |
| 3 + Interp_Extend * 2, 4, HFilter); |
| |
| /* then filter verticaly... */ |
| filter_block2d_second_pass_6(FData + 4 * (Interp_Extend - 1), output_ptr, output_pitch, 4, 4, 4, 4, VFilter); |
| } |
| |
| |
| void vp9_sixtap_predict_c |
| ( |
| 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; |
| |
| HFilter = vp9_sub_pel_filters_6[xoffset]; /* 6 tap */ |
| VFilter = vp9_sub_pel_filters_6[yoffset]; /* 6 tap */ |
| |
| filter_block2d_6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter); |
| } |
| |
| /* |
| * The difference between filter_block2d_6() and filter_block2d_avg_6 is |
| * that filter_block2d_6() does a 6-tap filter and stores it in the output |
| * buffer, whereas filter_block2d_avg_6() does the same 6-tap filter, and |
| * then averages that with the content already present in the output |
| * ((filter_result + dest + 1) >> 1) and stores that in the output. |
| */ |
| static void filter_block2d_avg_6 |
| ( |
| unsigned char *src_ptr, |
| unsigned char *output_ptr, |
| unsigned int src_pixels_per_line, |
| int output_pitch, |
| const short *HFilter, |
| const short *VFilter |
| ) { |
| int FData[(3 + Interp_Extend * 2) * 4]; /* Temp data buffer used in filtering */ |
| |
| /* First filter 1-D horizontally... */ |
| filter_block2d_first_pass_6(src_ptr - ((Interp_Extend - 1) * src_pixels_per_line), |
| FData, src_pixels_per_line, 1, |
| 3 + Interp_Extend * 2, 4, HFilter); |
| |
| /* then filter verticaly... */ |
| filter_block2d_second_pass_avg_6(FData + 4 * (Interp_Extend - 1), output_ptr, |
| output_pitch, 4, 4, 4, 4, VFilter); |
| } |
| |
| void vp9_sixtap_predict_avg_c |
| ( |
| 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; |
| |
| HFilter = vp9_sub_pel_filters_6[xoffset]; /* 6 tap */ |
| VFilter = vp9_sub_pel_filters_6[yoffset]; /* 6 tap */ |
| |
| filter_block2d_avg_6(src_ptr, dst_ptr, src_pixels_per_line, |
| dst_pitch, HFilter, VFilter); |
| } |
| |
| void vp9_sixtap_predict8x8_c |
| ( |
| 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; |
| // int FData[(7+Interp_Extend*2)*16]; /* Temp data buffer used in filtering */ |
| int FData[(7 + Interp_Extend * 2) * 8]; /* Temp data buffer used in filtering */ |
| |
| HFilter = vp9_sub_pel_filters_6[xoffset]; /* 6 tap */ |
| VFilter = vp9_sub_pel_filters_6[yoffset]; /* 6 tap */ |
| |
| /* First filter 1-D horizontally... */ |
| filter_block2d_first_pass_6(src_ptr - ((Interp_Extend - 1) * src_pixels_per_line), FData, src_pixels_per_line, 1, |
| 7 + Interp_Extend * 2, 8, HFilter); |
| |
| |
| /* then filter verticaly... */ |
| filter_block2d_second_pass_6(FData + 8 * (Interp_Extend - 1), dst_ptr, dst_pitch, 8, 8, 8, 8, VFilter); |
| |
| } |
| |
| void vp9_sixtap_predict_avg8x8_c |
| ( |
| 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; |
| // int FData[(7+Interp_Extend*2)*16]; /* Temp data buffer used in filtering */ |
| int FData[(7 + Interp_Extend * 2) * 8]; /* Temp data buffer used in filtering */ |
| |
| HFilter = vp9_sub_pel_filters_6[xoffset]; /* 6 tap */ |
| VFilter = vp9_sub_pel_filters_6[yoffset]; /* 6 tap */ |
| |
| /* First filter 1-D horizontally... */ |
| filter_block2d_first_pass_6(src_ptr - ((Interp_Extend - 1) * src_pixels_per_line), FData, src_pixels_per_line, 1, |
| 7 + Interp_Extend * 2, 8, HFilter); |
| |
| /* then filter verticaly... */ |
| filter_block2d_second_pass_avg_6(FData + 8 * (Interp_Extend - 1), dst_ptr, dst_pitch, 8, 8, 8, 8, VFilter); |
| } |
| |
| void vp9_sixtap_predict8x4_c |
| ( |
| 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; |
| // int FData[(7+Interp_Extend*2)*16]; /* Temp data buffer used in filtering */ |
| int FData[(3 + Interp_Extend * 2) * 8]; /* Temp data buffer used in filtering */ |
| |
| HFilter = vp9_sub_pel_filters_6[xoffset]; /* 6 tap */ |
| VFilter = vp9_sub_pel_filters_6[yoffset]; /* 6 tap */ |
| |
| /* First filter 1-D horizontally... */ |
| filter_block2d_first_pass_6(src_ptr - ((Interp_Extend - 1) * src_pixels_per_line), FData, src_pixels_per_line, 1, |
| 3 + Interp_Extend * 2, 8, HFilter); |
| |
| |
| /* then filter verticaly... */ |
| filter_block2d_second_pass_6(FData + 8 * (Interp_Extend - 1), dst_ptr, dst_pitch, 8, 8, 4, 8, VFilter); |
| |
| } |
| |
| void vp9_sixtap_predict16x16_c |
| ( |
| 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; |
| // int FData[(15+Interp_Extend*2)*24]; /* Temp data buffer used in filtering */ |
| int FData[(15 + Interp_Extend * 2) * 16]; /* Temp data buffer used in filtering */ |
| |
| |
| HFilter = vp9_sub_pel_filters_6[xoffset]; /* 6 tap */ |
| VFilter = vp9_sub_pel_filters_6[yoffset]; /* 6 tap */ |
| |
| /* First filter 1-D horizontally... */ |
| filter_block2d_first_pass_6(src_ptr - ((Interp_Extend - 1) * src_pixels_per_line), FData, src_pixels_per_line, 1, |
| 15 + Interp_Extend * 2, 16, HFilter); |
| |
| /* then filter verticaly... */ |
| filter_block2d_second_pass_6(FData + 16 * (Interp_Extend - 1), dst_ptr, dst_pitch, 16, 16, 16, 16, VFilter); |
| |
| } |
| |
| void vp9_sixtap_predict_avg16x16_c |
| ( |
| 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; |
| // int FData[(15+Interp_Extend*2)*24]; /* Temp data buffer used in filtering */ |
| int FData[(15 + Interp_Extend * 2) * 16]; /* Temp data buffer used in filtering */ |
| |
| HFilter = vp9_sub_pel_filters_6[xoffset]; /* 6 tap */ |
| VFilter = vp9_sub_pel_filters_6[yoffset]; /* 6 tap */ |
| |
| /* First filter 1-D horizontally... */ |
| filter_block2d_first_pass_6(src_ptr - ((Interp_Extend - 1) * src_pixels_per_line), FData, |
| src_pixels_per_line, 1, 15 + Interp_Extend * 2, 16, HFilter); |
| |
| /* then filter verticaly... */ |
| filter_block2d_second_pass_avg_6(FData + 16 * (Interp_Extend - 1), dst_ptr, dst_pitch, |
| 16, 16, 16, 16, VFilter); |
| } |
| |
| typedef enum { |
| VPX_FILTER_4x4 = 0, |
| VPX_FILTER_8x8 = 1, |
| VPX_FILTER_8x4 = 2, |
| VPX_FILTER_16x16 = 3, |
| } filter_size_t; |
| |
| static const unsigned int filter_size_to_wh[][2] = { |
| {4, 4}, |
| {8, 8}, |
| {8, 4}, |
| {16,16}, |
| }; |
| |
| static const unsigned int filter_max_height = 16; |
| static const unsigned int filter_max_width = 16; |
| |
| static void filter_block2d_8_c(const unsigned char *src_ptr, |
| const unsigned int src_stride, |
| const short *HFilter, |
| const short *VFilter, |
| const filter_size_t filter_size, |
| unsigned char *dst_ptr, |
| unsigned int dst_stride) { |
| const unsigned int output_width = filter_size_to_wh[filter_size][0]; |
| const unsigned int output_height = filter_size_to_wh[filter_size][1]; |
| |
| // Between passes, we use an intermediate buffer whose height is extended to |
| // have enough horizontally filtered values as input for the vertical pass. |
| // This buffer is allocated to be big enough for the largest block type we |
| // support. |
| const int kInterp_Extend = 4; |
| const unsigned int intermediate_height = |
| (kInterp_Extend - 1) + output_height + kInterp_Extend; |
| const unsigned int max_intermediate_height = |
| (kInterp_Extend - 1) + filter_max_height + kInterp_Extend; |
| #ifdef _MSC_VER |
| // MSVC does not support C99 style declaration |
| unsigned char intermediate_buffer[23 * 16]; |
| #else |
| unsigned char intermediate_buffer[max_intermediate_height * filter_max_width]; |
| #endif |
| const int intermediate_next_stride = 1 - intermediate_height * output_width; |
| |
| // Horizontal pass (src -> transposed intermediate). |
| { |
| unsigned char *output_ptr = intermediate_buffer; |
| const int src_next_row_stride = src_stride - output_width; |
| unsigned int i, j; |
| src_ptr -= (kInterp_Extend - 1) * src_stride + (kInterp_Extend - 1); |
| for (i = 0; i < intermediate_height; i++) { |
| for (j = 0; j < output_width; j++) { |
| // Apply filter... |
| int temp = ((int)src_ptr[0] * HFilter[0]) + |
| ((int)src_ptr[1] * HFilter[1]) + |
| ((int)src_ptr[2] * HFilter[2]) + |
| ((int)src_ptr[3] * HFilter[3]) + |
| ((int)src_ptr[4] * HFilter[4]) + |
| ((int)src_ptr[5] * HFilter[5]) + |
| ((int)src_ptr[6] * HFilter[6]) + |
| ((int)src_ptr[7] * HFilter[7]) + |
| (VP9_FILTER_WEIGHT >> 1); // Rounding |
| |
| // Normalize back to 0-255... |
| temp >>= VP9_FILTER_SHIFT; |
| if (temp < 0) { |
| temp = 0; |
| } else if (temp > 255) { |
| temp = 255; |
| } |
| src_ptr++; |
| *output_ptr = temp; |
| output_ptr += intermediate_height; |
| } |
| src_ptr += src_next_row_stride; |
| output_ptr += intermediate_next_stride; |
| } |
| } |
| |
| // Vertical pass (transposed intermediate -> dst). |
| { |
| unsigned char *src_ptr = intermediate_buffer; |
| const int dst_next_row_stride = dst_stride - output_width; |
| unsigned int i, j; |
| for (i = 0; i < output_height; i++) { |
| for (j = 0; j < output_width; j++) { |
| // Apply filter... |
| int temp = ((int)src_ptr[0] * VFilter[0]) + |
| ((int)src_ptr[1] * VFilter[1]) + |
| ((int)src_ptr[2] * VFilter[2]) + |
| ((int)src_ptr[3] * VFilter[3]) + |
| ((int)src_ptr[4] * VFilter[4]) + |
| ((int)src_ptr[5] * VFilter[5]) + |
| ((int)src_ptr[6] * VFilter[6]) + |
| ((int)src_ptr[7] * VFilter[7]) + |
| (VP9_FILTER_WEIGHT >> 1); // Rounding |
| |
| // Normalize back to 0-255... |
| temp >>= VP9_FILTER_SHIFT; |
| if (temp < 0) { |
| temp = 0; |
| } else if (temp > 255) { |
| temp = 255; |
| } |
| |
| src_ptr += intermediate_height; |
| *dst_ptr++ = (unsigned char)temp; |
| } |
| src_ptr += intermediate_next_stride; |
| dst_ptr += dst_next_row_stride; |
| } |
| } |
| } |
| |
| void vp9_filter_block2d_4x4_8_c(const unsigned char *src_ptr, |
| const unsigned int src_stride, |
| const short *HFilter_aligned16, |
| const short *VFilter_aligned16, |
| unsigned char *dst_ptr, |
| unsigned int dst_stride) { |
| filter_block2d_8_c(src_ptr, src_stride, |
| HFilter_aligned16, VFilter_aligned16, |
| VPX_FILTER_4x4, dst_ptr, dst_stride); |
| } |
| |
| void vp9_filter_block2d_8x4_8_c(const unsigned char *src_ptr, |
| const unsigned int src_stride, |
| const short *HFilter_aligned16, |
| const short *VFilter_aligned16, |
| unsigned char *dst_ptr, |
| unsigned int dst_stride) { |
| filter_block2d_8_c(src_ptr, src_stride, |
| HFilter_aligned16, VFilter_aligned16, |
| VPX_FILTER_8x4, dst_ptr, dst_stride); |
| } |
| |
| void vp9_filter_block2d_8x8_8_c(const unsigned char *src_ptr, |
| const unsigned int src_stride, |
| const short *HFilter_aligned16, |
| const short *VFilter_aligned16, |
| unsigned char *dst_ptr, |
| unsigned int dst_stride) { |
| filter_block2d_8_c(src_ptr, src_stride, |
| HFilter_aligned16, VFilter_aligned16, |
| VPX_FILTER_8x8, dst_ptr, dst_stride); |
| } |
| |
| void vp9_filter_block2d_16x16_8_c(const unsigned char *src_ptr, |
| const unsigned int src_stride, |
| const short *HFilter_aligned16, |
| const short *VFilter_aligned16, |
| unsigned char *dst_ptr, |
| unsigned int dst_stride) { |
| filter_block2d_8_c(src_ptr, src_stride, |
| HFilter_aligned16, VFilter_aligned16, |
| VPX_FILTER_16x16, dst_ptr, dst_stride); |
| } |
| |
| static void block2d_average_c(unsigned char *src, |
| unsigned int src_stride, |
| unsigned char *output_ptr, |
| unsigned int output_stride, |
| const filter_size_t filter_size) { |
| const unsigned int output_width = filter_size_to_wh[filter_size][0]; |
| const unsigned int output_height = filter_size_to_wh[filter_size][1]; |
| |
| unsigned int i, j; |
| for (i = 0; i < output_height; i++) { |
| for (j = 0; j < output_width; j++) { |
| output_ptr[j] = (output_ptr[j] + src[i * src_stride + j] + 1) >> 1; |
| } |
| output_ptr += output_stride; |
| } |
| } |
| |
| #define block2d_average block2d_average_c |
| |
| void vp9_eighttap_predict_c |
| ( |
| 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; |
| |
| HFilter = vp9_sub_pel_filters_8[xoffset]; |
| VFilter = vp9_sub_pel_filters_8[yoffset]; |
| |
| vp9_filter_block2d_4x4_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| dst_ptr, dst_pitch); |
| } |
| |
| void vp9_eighttap_predict_avg4x4_c |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) { |
| const short *HFilter = vp9_sub_pel_filters_8[xoffset]; |
| const short *VFilter = vp9_sub_pel_filters_8[yoffset]; |
| unsigned char tmp[4 * 4]; |
| |
| vp9_filter_block2d_4x4_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| tmp, 4); |
| block2d_average(tmp, 4, dst_ptr, dst_pitch, VPX_FILTER_4x4); |
| } |
| |
| void vp9_eighttap_predict_sharp_c |
| ( |
| 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; |
| |
| HFilter = vp9_sub_pel_filters_8s[xoffset]; |
| VFilter = vp9_sub_pel_filters_8s[yoffset]; |
| |
| vp9_filter_block2d_4x4_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| dst_ptr, dst_pitch); |
| } |
| |
| void vp9_eighttap_predict_avg4x4_sharp_c |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) { |
| const short *HFilter = vp9_sub_pel_filters_8s[xoffset]; |
| const short *VFilter = vp9_sub_pel_filters_8s[yoffset]; |
| unsigned char tmp[4 * 4]; |
| |
| vp9_filter_block2d_4x4_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| tmp, 4); |
| block2d_average(tmp, 4, dst_ptr, dst_pitch, VPX_FILTER_4x4); |
| } |
| |
| void vp9_eighttap_predict8x8_c |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) { |
| const short *HFilter = vp9_sub_pel_filters_8[xoffset]; |
| const short *VFilter = vp9_sub_pel_filters_8[yoffset]; |
| |
| vp9_filter_block2d_8x8_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| dst_ptr, dst_pitch); |
| } |
| |
| void vp9_eighttap_predict8x8_sharp_c |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) { |
| const short *HFilter = vp9_sub_pel_filters_8s[xoffset]; |
| const short *VFilter = vp9_sub_pel_filters_8s[yoffset]; |
| |
| vp9_filter_block2d_8x8_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| dst_ptr, dst_pitch); |
| } |
| |
| void vp9_eighttap_predict_avg8x8_c |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) { |
| unsigned char tmp[8 * 8]; |
| const short *HFilter = vp9_sub_pel_filters_8[xoffset]; |
| const short *VFilter = vp9_sub_pel_filters_8[yoffset]; |
| |
| vp9_filter_block2d_8x8_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| tmp, 8); |
| block2d_average(tmp, 8, dst_ptr, dst_pitch, VPX_FILTER_8x8); |
| } |
| |
| void vp9_eighttap_predict_avg8x8_sharp_c |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) { |
| unsigned char tmp[8 * 8]; |
| const short *HFilter = vp9_sub_pel_filters_8s[xoffset]; |
| const short *VFilter = vp9_sub_pel_filters_8s[yoffset]; |
| |
| vp9_filter_block2d_8x8_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| tmp, 8); |
| block2d_average(tmp, 8, dst_ptr, dst_pitch, VPX_FILTER_8x8); |
| } |
| |
| void vp9_eighttap_predict8x4_c |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) { |
| |
| const short *HFilter = vp9_sub_pel_filters_8[xoffset]; |
| const short *VFilter = vp9_sub_pel_filters_8[yoffset]; |
| |
| vp9_filter_block2d_8x4_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| dst_ptr, dst_pitch); |
| } |
| |
| void vp9_eighttap_predict8x4_sharp_c |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) { |
| const short *HFilter = vp9_sub_pel_filters_8s[xoffset]; |
| const short *VFilter = vp9_sub_pel_filters_8s[yoffset]; |
| |
| vp9_filter_block2d_8x4_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| dst_ptr, dst_pitch); |
| } |
| |
| void vp9_eighttap_predict16x16_c |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) { |
| const short *HFilter = vp9_sub_pel_filters_8[xoffset]; |
| const short *VFilter = vp9_sub_pel_filters_8[yoffset]; |
| |
| vp9_filter_block2d_16x16_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| dst_ptr, dst_pitch); |
| } |
| |
| void vp9_eighttap_predict16x16_sharp_c |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) { |
| const short *HFilter = vp9_sub_pel_filters_8s[xoffset]; |
| const short *VFilter = vp9_sub_pel_filters_8s[yoffset]; |
| |
| vp9_filter_block2d_16x16_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| dst_ptr, dst_pitch); |
| } |
| |
| void vp9_eighttap_predict_avg16x16_c |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) { |
| DECLARE_ALIGNED_ARRAY(16, unsigned char, tmp, 16 * 16); |
| const short *HFilter = vp9_sub_pel_filters_8[xoffset]; |
| const short *VFilter = vp9_sub_pel_filters_8[yoffset]; |
| |
| vp9_filter_block2d_16x16_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| tmp, 16); |
| block2d_average(tmp, 16, dst_ptr, dst_pitch, VPX_FILTER_16x16); |
| } |
| |
| void vp9_eighttap_predict_avg16x16_sharp_c |
| ( |
| unsigned char *src_ptr, |
| int src_pixels_per_line, |
| int xoffset, |
| int yoffset, |
| unsigned char *dst_ptr, |
| int dst_pitch |
| ) { |
| DECLARE_ALIGNED_ARRAY(16, unsigned char, tmp, 16 * 16); |
| const short *HFilter = vp9_sub_pel_filters_8s[xoffset]; |
| const short *VFilter = vp9_sub_pel_filters_8s[yoffset]; |
| |
| vp9_filter_block2d_16x16_8(src_ptr, src_pixels_per_line, |
| HFilter, VFilter, |
| tmp, 16); |
| block2d_average(tmp, 16, dst_ptr, dst_pitch, VPX_FILTER_16x16); |
| } |
| |
| /**************************************************************************** |
| * |
| * ROUTINE : filter_block2d_bil_first_pass |
| * |
| * INPUTS : UINT8 *src_ptr : Pointer to source block. |
| * UINT32 src_stride : Stride of source block. |
| * UINT32 height : Block height. |
| * UINT32 width : Block width. |
| * INT32 *vp9_filter : Array of 2 bi-linear filter taps. |
| * |
| * OUTPUTS : INT32 *dst_ptr : Pointer to filtered block. |
| * |
| * RETURNS : void |
| * |
| * FUNCTION : Applies a 1-D 2-tap bi-linear filter to the source block |
| * in the horizontal direction to produce the filtered output |
| * block. Used to implement first-pass of 2-D separable filter. |
| * |
| * SPECIAL NOTES : Produces INT32 output to retain precision for next pass. |
| * Two filter taps should sum to VP9_FILTER_WEIGHT. |
| * |
| ****************************************************************************/ |
| static void filter_block2d_bil_first_pass |
| ( |
| unsigned char *src_ptr, |
| unsigned short *dst_ptr, |
| unsigned int src_stride, |
| unsigned int height, |
| unsigned int width, |
| const short *vp9_filter |
| ) { |
| unsigned int i, j; |
| |
| for (i = 0; i < height; i++) { |
| for (j = 0; j < width; j++) { |
| /* Apply bilinear filter */ |
| dst_ptr[j] = (((int)src_ptr[0] * vp9_filter[0]) + |
| ((int)src_ptr[1] * vp9_filter[1]) + |
| (VP9_FILTER_WEIGHT / 2)) >> VP9_FILTER_SHIFT; |
| src_ptr++; |
| } |
| |
| /* Next row... */ |
| src_ptr += src_stride - width; |
| dst_ptr += width; |
| } |
| } |
| |
| /**************************************************************************** |
| * |
| * ROUTINE : filter_block2d_bil_second_pass |
| * |
| * INPUTS : INT32 *src_ptr : Pointer to source block. |
| * UINT32 dst_pitch : Destination block pitch. |
| * UINT32 height : Block height. |
| * UINT32 width : Block width. |
| * INT32 *vp9_filter : Array of 2 bi-linear filter taps. |
| * |
| * OUTPUTS : UINT16 *dst_ptr : Pointer to filtered block. |
| * |
| * RETURNS : void |
| * |
| * FUNCTION : Applies a 1-D 2-tap bi-linear filter to the source block |
| * in the vertical direction to produce the filtered output |
| * block. Used to implement second-pass of 2-D separable filter. |
| * |
| * SPECIAL NOTES : Requires 32-bit input as produced by filter_block2d_bil_first_pass. |
| * Two filter taps should sum to VP9_FILTER_WEIGHT. |
| * |
| ****************************************************************************/ |
| static void filter_block2d_bil_second_pass |
| ( |
| unsigned short *src_ptr, |
| unsigned char *dst_ptr, |
| int dst_pitch, |
| unsigned int height, |
| unsigned int width, |
| const short *vp9_filter |
| ) { |
| unsigned int i, j; |
| int Temp; |
| |
| for (i = 0; i < height; i++) { |
| for (j = 0; j < width; j++) { |
| /* Apply filter */ |
| Temp = ((int)src_ptr[0] * vp9_filter[0]) + |
| ((int)src_ptr[width] * vp9_filter[1]) + |
| (VP9_FILTER_WEIGHT / 2); |
| dst_ptr[j] = (unsigned int)(Temp >> VP9_FILTER_SHIFT); |
| src_ptr++; |
| } |
| |
| /* Next row... */ |
| dst_ptr += dst_pitch; |
| } |
| } |
| |
| /* |
| * As before for filter_block2d_second_pass_avg(), the functional difference |
| * between filter_block2d_bil_second_pass() and filter_block2d_bil_second_pass_avg() |
| * is that filter_block2d_bil_second_pass() does a bilinear filter on input |
| * and stores the result in output; filter_block2d_bil_second_pass_avg(), |
| * instead, does a bilinear filter on input, averages the resulting value |
| * with the values already present in the output and stores the result of |
| * that back into the output ((filter_result + dest + 1) >> 1). |
| */ |
| static void filter_block2d_bil_second_pass_avg |
| ( |
| unsigned short *src_ptr, |
| unsigned char *dst_ptr, |
| int dst_pitch, |
| unsigned int height, |
| unsigned int width, |
| const short *vp9_filter |
| ) { |
| unsigned int i, j; |
| int Temp; |
| |
| for (i = 0; i < height; i++) { |
| for (j = 0; j < width; j++) { |
| /* Apply filter */ |
| Temp = ((int)src_ptr[0] * vp9_filter[0]) + |
| ((int)src_ptr[width] * vp9_filter[1]) + |
| (VP9_FILTER_WEIGHT / 2); |
| dst_ptr[j] = (unsigned int)(((Temp >> VP9_FILTER_SHIFT) + dst_ptr[j] + 1) >> 1); |
| src_ptr++; |
| } |
| |
| /* Next row... */ |
| dst_ptr += dst_pitch; |
| } |
| } |
| |
| /**************************************************************************** |
| * |
| * ROUTINE : filter_block2d_bil |
| * |
| * INPUTS : UINT8 *src_ptr : Pointer to source block. |
| * UINT32 src_pitch : Stride of source block. |
| * UINT32 dst_pitch : Stride of destination block. |
| * INT32 *HFilter : Array of 2 horizontal filter taps. |
| * INT32 *VFilter : Array of 2 vertical filter taps. |
| * INT32 Width : Block width |
| * INT32 Height : Block height |
| * |
| * OUTPUTS : UINT16 *dst_ptr : Pointer to filtered block. |
| * |
| * RETURNS : void |
| * |
| * FUNCTION : 2-D filters an input block by applying a 2-tap |
| * bi-linear filter horizontally followed by a 2-tap |
| * bi-linear filter vertically on the result. |
| * |
| * SPECIAL NOTES : The largest block size can be handled here is 16x16 |
| * |
| ****************************************************************************/ |
| static void filter_block2d_bil |
| ( |
| unsigned char *src_ptr, |
| unsigned char *dst_ptr, |
| unsigned int src_pitch, |
| unsigned int dst_pitch, |
| const short *HFilter, |
| const short *VFilter, |
| int Width, |
| int Height |
| ) { |
| |
| unsigned short FData[17 * 16]; /* Temp data buffer used in filtering */ |
| |
| /* First filter 1-D horizontally... */ |
| filter_block2d_bil_first_pass(src_ptr, FData, src_pitch, Height + 1, Width, HFilter); |
| |
| /* then 1-D vertically... */ |
| filter_block2d_bil_second_pass(FData, dst_ptr, dst_pitch, Height, Width, VFilter); |
| } |
| |
| static void filter_block2d_bil_avg |
| ( |
| unsigned char *src_ptr, |
| unsigned char *dst_ptr, |
| unsigned int src_pitch, |
| unsigned int dst_pitch, |
| const short *HFilter, |
| const short *VFilter, |
| int Width, |
| int Height |
| ) { |
| unsigned short FData[17 * 16]; /* Temp data buffer used in filtering */ |
| |
| /* First filter 1-D horizontally... */ |
| filter_block2d_bil_first_pass(src_ptr, FData, src_pitch, Height + 1, Width, HFilter); |
| |
| /* then 1-D vertically... */ |
| filter_block2d_bil_second_pass_avg(FData, dst_ptr, dst_pitch, Height, Width, VFilter); |
| } |
| |
| void vp9_bilinear_predict4x4_c |
| ( |
| 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; |
| |
| HFilter = vp9_bilinear_filters[xoffset]; |
| VFilter = vp9_bilinear_filters[yoffset]; |
| #if 0 |
| { |
| int i; |
| unsigned char temp1[16]; |
| unsigned char temp2[16]; |
| |
| bilinear_predict4x4_mmx(src_ptr, src_pixels_per_line, xoffset, yoffset, temp1, 4); |
| filter_block2d_bil(src_ptr, temp2, src_pixels_per_line, 4, HFilter, VFilter, 4, 4); |
| |
| for (i = 0; i < 16; i++) { |
| if (temp1[i] != temp2[i]) { |
| bilinear_predict4x4_mmx(src_ptr, src_pixels_per_line, xoffset, yoffset, temp1, 4); |
| filter_block2d_bil(src_ptr, temp2, src_pixels_per_line, 4, HFilter, VFilter, 4, 4); |
| } |
| } |
| } |
| #endif |
| filter_block2d_bil(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 4, 4); |
| |
| } |
| |
| void vp9_bilinear_predict_avg4x4_c |
| ( |
| 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; |
| |
| HFilter = vp9_bilinear_filters[xoffset]; |
| VFilter = vp9_bilinear_filters[yoffset]; |
| |
| filter_block2d_bil_avg(src_ptr, dst_ptr, src_pixels_per_line, |
| dst_pitch, HFilter, VFilter, 4, 4); |
| } |
| |
| void vp9_bilinear_predict8x8_c |
| ( |
| 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; |
| |
| HFilter = vp9_bilinear_filters[xoffset]; |
| VFilter = vp9_bilinear_filters[yoffset]; |
| |
| filter_block2d_bil(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 8, 8); |
| |
| } |
| |
| void vp9_bilinear_predict_avg8x8_c |
| ( |
| 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; |
| |
| HFilter = vp9_bilinear_filters[xoffset]; |
| VFilter = vp9_bilinear_filters[yoffset]; |
| |
| filter_block2d_bil_avg(src_ptr, dst_ptr, src_pixels_per_line, |
| dst_pitch, HFilter, VFilter, 8, 8); |
| } |
| |
| void vp9_bilinear_predict8x4_c |
| ( |
| 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; |
| |
| HFilter = vp9_bilinear_filters[xoffset]; |
| VFilter = vp9_bilinear_filters[yoffset]; |
| |
| filter_block2d_bil(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 8, 4); |
| |
| } |
| |
| void vp9_bilinear_predict16x16_c |
| ( |
| 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; |
| |
| HFilter = vp9_bilinear_filters[xoffset]; |
| VFilter = vp9_bilinear_filters[yoffset]; |
| |
| filter_block2d_bil(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 16, 16); |
| } |
| |
| void vp9_bilinear_predict_avg16x16_c |
| ( |
| 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; |
| |
| HFilter = vp9_bilinear_filters[xoffset]; |
| VFilter = vp9_bilinear_filters[yoffset]; |
| |
| filter_block2d_bil_avg(src_ptr, dst_ptr, src_pixels_per_line, |
| dst_pitch, HFilter, VFilter, 16, 16); |
| } |
