475d5d5664
Various refactoring to make the subpel motion compensation filters switchable by a frame level field. Two types of 8-tap filters are supported in addition to the existing bilinar and sixtap filters. One is the default 8-tap and the other has a sharper cut-off for use with frames with substantial edge content. Patch 2: Added a preliminary strategy for filter selection based on edginess detecton. Also includes some filter changes. Change-Id: I866085bda5ae143cfdf2ec88157feaabdf7bd63a
1467 lines
47 KiB
C
1467 lines
47 KiB
C
/*
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* Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include <stdlib.h>
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#include "filter.h"
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#include "vpx_ports/mem.h"
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DECLARE_ALIGNED(16, const short, vp8_bilinear_filters[SUBPEL_SHIFTS][2]) =
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{
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#if SUBPEL_SHIFTS==16
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{ 128, 0 },
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{ 120, 8 },
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{ 112, 16 },
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{ 104, 24 },
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{ 96, 32 },
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{ 88, 40 },
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{ 80, 48 },
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{ 72, 56 },
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{ 64, 64 },
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{ 56, 72 },
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{ 48, 80 },
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{ 40, 88 },
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{ 32, 96 },
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{ 24, 104 },
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{ 16, 112 },
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{ 8, 120 }
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#else
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{ 128, 0 },
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{ 112, 16 },
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{ 96, 32 },
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{ 80, 48 },
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{ 64, 64 },
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{ 48, 80 },
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{ 32, 96 },
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{ 16, 112 }
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#endif /* SUBPEL_SHIFTS==16 */
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};
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#if CONFIG_ENHANCED_INTERP
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#define FILTER_ALPHA 0
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#define FILTER_ALPHA_SHARP 60
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DECLARE_ALIGNED(16, const short, vp8_sub_pel_filters_8[SUBPEL_SHIFTS][2*INTERP_EXTEND]) =
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{
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#if SUBPEL_SHIFTS==16
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#if FILTER_ALPHA == 0
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/* Lagrangian interpolation filter */
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{ 0, 0, 0, 128, 0, 0, 0, 0},
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{ 0, 1, -5, 126, 8, -3, 1, 0},
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{-1, 3, -10, 122, 18, -6, 2, 0},
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{-1, 4, -13, 118, 27, -9, 3, -1},
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{-1, 4, -16, 112, 37, -11, 4, -1},
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{-1, 5, -18, 105, 48, -14, 4, -1},
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{-1, 5, -19, 97, 58, -16, 5, -1},
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{-1, 6, -19, 88, 68, -18, 5, -1},
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{-1, 6, -19, 78, 78, -19, 6, -1},
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{-1, 5, -18, 68, 88, -19, 6, -1},
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{-1, 5, -16, 58, 97, -19, 5, -1},
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{-1, 4, -14, 48, 105, -18, 5, -1},
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{-1, 4, -11, 37, 112, -16, 4, -1},
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{-1, 3, -9, 27, 118, -13, 4, -1},
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{ 0, 2, -6, 18, 122, -10, 3, -1},
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{ 0, 1, -3, 8, 126, -5, 1, 0}
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#elif FILTER_ALPHA == 50
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/* Generated using MATLAB:
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* alpha = 0.5;
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* b=intfilt(8,4,alpha);
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* bi=round(128*b);
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* ba=flipud(reshape([bi 0], 8, 8));
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* disp(num2str(ba, '%d,'))
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*/
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{ 0, 0, 0, 128, 0, 0, 0, 0},
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{ 0, 1, -5, 126, 8, -3, 1, 0},
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{ 0, 2, -10, 122, 18, -6, 2, 0},
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{-1, 3, -13, 118, 27, -9, 3, 0},
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{-1, 4, -16, 112, 37, -11, 3, 0},
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{-1, 5, -17, 104, 48, -14, 4, -1},
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{-1, 5, -18, 96, 58, -16, 5, -1},
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{-1, 5, -19, 88, 68, -17, 5, -1},
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{-1, 5, -18, 78, 78, -18, 5, -1},
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{-1, 5, -17, 68, 88, -19, 5, -1},
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{-1, 5, -16, 58, 96, -18, 5, -1},
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{-1, 4, -14, 48, 104, -17, 5, -1},
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{ 0, 3, -11, 37, 112, -16, 4, -1},
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{ 0, 3, -9, 27, 118, -13, 3, -1},
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{ 0, 2, -6, 18, 122, -10, 2, 0},
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{ 0, 1, -3, 8, 126, -5, 1, 0}
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#elif FILTER_ALPHA == 45
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/* alpha = 0.45 */
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{ 0, 0, 0, 128, 0, 0, 0, 0},
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{ 0, 1, -5, 126, 8, -3, 1, 0},
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{ 0, 2, -9, 122, 17, -6, 2, 0},
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{ 0, 3, -13, 117, 27, -8, 2, 0},
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{-1, 4, -15, 111, 37, -11, 3, 0},
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{-1, 4, -17, 104, 47, -13, 4, 0},
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{-1, 5, -18, 96, 58, -15, 4, -1},
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{-1, 5, -18, 87, 68, -17, 5, -1},
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{-1, 5, -18, 78, 78, -18, 5, -1},
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{-1, 5, -17, 68, 87, -18, 5, -1},
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{-1, 4, -15, 58, 96, -18, 5, -1},
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{ 0, 4, -13, 47, 104, -17, 4, -1},
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{ 0, 3, -11, 37, 111, -15, 4, -1},
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{ 0, 2, -8, 27, 117, -13, 3, 0},
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{ 0, 2, -6, 17, 122, -9, 2, 0},
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{ 0, 1, -3, 8, 126, -5, 1, 0}
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#endif /* FILTER_ALPHA */
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#else /* SUBPEL_SHIFTS==16 */
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#if FILTER_ALPHA == 0
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{ 0, 0, 0, 128, 0, 0, 0, 0},
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{-1, 3, -10, 122, 18, -6, 2, 0},
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{-1, 4, -16, 112, 37, -11, 4, -1},
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{-1, 5, -19, 97, 58, -16, 5, -1},
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{-1, 6, -19, 78, 78, -19, 6, -1},
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{-1, 5, -16, 58, 97, -19, 5, -1},
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{-1, 4, -11, 37, 112, -16, 4, -1},
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{ 0, 2, -6, 18, 122, -10, 3, -1},
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#elif FILTER_ALPHA == 50
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/* alpha = 0.50 */
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{ 0, 0, 0, 128, 0, 0, 0, 0},
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{ 0, 2, -10, 122, 18, -6, 2, 0},
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{-1, 4, -16, 112, 37, -11, 3, 0},
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{-1, 5, -18, 96, 58, -16, 5, -1},
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{-1, 5, -18, 78, 78, -18, 5, -1},
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{-1, 5, -16, 58, 96, -18, 5, -1},
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{ 0, 3, -11, 37, 112, -16, 4, -1},
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{ 0, 2, -6, 18, 122, -10, 2, 0}
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#elif FILTER_ALPHA == 45
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/* alpha = 0.45 */
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{ 0, 0, 0, 128, 0, 0, 0, 0},
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{ 0, 2, -9, 122, 17, -6, 2, 0},
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{-1, 4, -15, 111, 37, -11, 3, 0},
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{-1, 5, -18, 96, 58, -15, 4, -1},
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{-1, 5, -18, 78, 78, -18, 5, -1},
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{-1, 4, -15, 58, 96, -18, 5, -1},
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{ 0, 3, -11, 37, 111, -15, 4, -1},
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{ 0, 2, -6, 17, 122, -9, 2, 0},
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#endif /* FILTER_ALPHA */
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#endif /* SUBPEL_SHIFTS==16 */
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};
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DECLARE_ALIGNED(16, const short, vp8_sub_pel_filters_8s[SUBPEL_SHIFTS][2*INTERP_EXTEND]) =
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{
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#if SUBPEL_SHIFTS==16
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#if FILTER_ALPHA_SHARP == 65
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/* alpha = 0.65 */
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{ 0, 0, 0, 128, 0, 0, 0, 0},
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{ 0, 2, -6, 126, 8, -3, 1, 0},
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{-1, 3, -10, 123, 18, -6, 2, -1},
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{-1, 5, -14, 118, 27, -10, 4, -1},
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{-1, 5, -17, 112, 38, -13, 5, -1},
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{-2, 6, -19, 106, 48, -15, 5, -1},
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{-2, 7, -21, 98, 59, -17, 6, -2},
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{-2, 7, -21, 89, 69, -19, 7, -2},
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{-2, 7, -20, 79, 79, -20, 7, -2},
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{-2, 7, -19, 69, 89, -21, 7, -2},
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{-2, 6, -17, 59, 98, -21, 7, -2},
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{-1, 5, -15, 48, 106, -19, 6, -2},
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{-1, 5, -13, 38, 112, -17, 5, -1},
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{-1, 4, -10, 27, 118, -14, 5, -1},
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{-1, 2, -6, 18, 123, -10, 3, -1},
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{ 0, 1, -3, 8, 126, -6, 2, 0}
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#elif FILTER_ALPHA_SHARP == 60
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/* alpha = 0.60 */
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{ 0, 0, 0, 128, 0, 0, 0, 0},
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{ 0, 2, -6, 126, 8, -3, 1, 0},
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{-1, 3, -10, 123, 18, -6, 2, -1},
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{-1, 4, -14, 118, 28, -9, 3, -1},
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{-1, 5, -17, 112, 38, -12, 4, -1},
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{-1, 6, -19, 105, 48, -15, 5, -1},
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{-1, 6, -20, 97, 58, -17, 6, -1},
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{-1, 6, -20, 88, 69, -19, 6, -1},
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{-1, 6, -20, 79, 79, -20, 6, -1},
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{-1, 6, -19, 69, 88, -20, 6, -1},
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{-1, 6, -17, 58, 97, -20, 6, -1},
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{-1, 5, -15, 48, 105, -19, 6, -1},
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{-1, 4, -12, 38, 112, -17, 5, -1},
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{-1, 3, -9, 28, 118, -14, 4, -1},
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{-1, 2, -6, 18, 123, -10, 3, -1},
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{ 0, 1, -3, 8, 126, -6, 2, 0}
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#elif FILTER_ALPHA_SHARP == 55
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/* alpha = 0.55 */
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{ 0, 0, 0, 128, 0, 0, 0, 0},
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{ 0, 1, -5, 126, 8, -3, 1, 0},
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{-1, 2, -10, 123, 18, -6, 2, 0},
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{-1, 4, -13, 118, 27, -9, 3, -1},
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{-1, 5, -16, 112, 37, -12, 4, -1},
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{-1, 5, -18, 105, 48, -14, 4, -1},
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{-1, 5, -19, 97, 58, -16, 5, -1},
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{-1, 6, -19, 88, 68, -18, 5, -1},
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{-1, 6, -19, 78, 78, -19, 6, -1},
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{-1, 5, -18, 68, 88, -19, 6, -1},
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{-1, 5, -16, 58, 97, -19, 5, -1},
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{-1, 4, -14, 48, 105, -18, 5, -1},
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{-1, 4, -12, 37, 112, -16, 5, -1},
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{-1, 3, -9, 27, 118, -13, 4, -1},
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{ 0, 2, -6, 18, 123, -10, 2, -1},
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{ 0, 1, -3, 8, 126, -5, 1, 0}
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#endif /* FILTER_ALPHA_SHARP */
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#else /* SUBPEL_SHIFTS==16 */
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#if FILTER_ALPHA_SHARP == 65
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/* alpha = 0.65 */
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{ 0, 0, 0, 128, 0, 0, 0, 0},
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{-1, 3, -10, 123, 18, -6, 2, -1},
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{-1, 5, -17, 112, 38, -13, 5, -1},
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{-2, 7, -21, 98, 59, -17, 6, -2},
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{-2, 7, -20, 79, 79, -20, 7, -2},
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{-2, 6, -17, 59, 98, -21, 7, -2},
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{-1, 5, -13, 38, 112, -17, 5, -1},
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{-1, 2, -6, 18, 123, -10, 3, -1}
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#elif FILTER_ALPHA_SHARP == 60
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/* alpha = 0.60 */
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{ 0, 0, 0, 128, 0, 0, 0, 0},
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{-1, 3, -10, 123, 18, -6, 2, -1},
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{-1, 5, -17, 112, 38, -12, 4, -1},
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{-1, 6, -20, 97, 58, -17, 6, -1},
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{-1, 6, -20, 79, 79, -20, 6, -1},
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{-1, 6, -17, 58, 97, -20, 6, -1},
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{-1, 4, -12, 38, 112, -17, 5, -1},
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{-1, 2, -6, 18, 123, -10, 3, -1}
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#elif FILTER_ALPHA_SHARP == 55
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/* alpha = 0.55 */
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{ 0, 0, 0, 128, 0, 0, 0, 0},
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{-1, 2, -10, 123, 18, -6, 2, 0},
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{-1, 5, -16, 112, 37, -12, 4, -1},
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{-1, 5, -19, 97, 58, -16, 5, -1},
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{-1, 6, -19, 78, 78, -19, 6, -1},
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{-1, 5, -16, 58, 97, -19, 5, -1},
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{-1, 4, -12, 37, 112, -16, 5, -1},
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{ 0, 2, -6, 18, 123, -10, 2, -1}
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#endif /* FILTER_ALPHA_SHARP */
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#endif /* SUBPEL_SHIFTS==16 */
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};
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#endif // CONFIG_ENHANCED_INTERP
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DECLARE_ALIGNED(16, const short, vp8_sub_pel_filters_6[SUBPEL_SHIFTS][6]) =
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{
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#if SUBPEL_SHIFTS==16
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{0, 0, 128, 0, 0, 0},
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{1, -5, 125, 8, -2, 1},
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{1, -8, 122, 17, -5, 1},
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{2, -11, 116, 27, -8, 2},
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{3, -14, 110, 37, -10, 2},
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{3, -15, 103, 47, -12, 2},
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{3, -16, 95, 57, -14, 3},
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{3, -16, 86, 67, -15, 3},
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{3, -16, 77, 77, -16, 3},
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{3, -15, 67, 86, -16, 3},
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{3, -14, 57, 95, -16, 3},
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{2, -12, 47, 103, -15, 3},
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{2, -10, 37, 110, -14, 3},
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{2, -8, 27, 116, -11, 2},
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{1, -5, 17, 122, -8, 1},
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{1, -2, 8, 125, -5, 1}
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#else
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{ 0, 0, 128, 0, 0, 0 }, /* note that 1/8 pel positions are just as per alpha -0.5 bicubic */
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{ 0, -6, 123, 12, -1, 0 },
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{ 2, -11, 108, 36, -8, 1 }, /* New 1/4 pel 6 tap filter */
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{ 0, -9, 93, 50, -6, 0 },
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{ 3, -16, 77, 77, -16, 3 }, /* New 1/2 pel 6 tap filter */
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{ 0, -6, 50, 93, -9, 0 },
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{ 1, -8, 36, 108, -11, 2 }, /* New 1/4 pel 6 tap filter */
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{ 0, -1, 12, 123, -6, 0 },
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#endif /* SUBPEL_SHIFTS==16 */
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};
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static void filter_block2d_first_pass_6
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(
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unsigned char *src_ptr,
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int *output_ptr,
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unsigned int src_pixels_per_line,
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unsigned int pixel_step,
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unsigned int output_height,
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unsigned int output_width,
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const short *vp8_filter
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)
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{
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unsigned int i, j;
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int Temp;
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for (i = 0; i < output_height; i++)
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{
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for (j = 0; j < output_width; j++)
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{
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Temp = ((int)src_ptr[-2 * (int)pixel_step] * vp8_filter[0]) +
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((int)src_ptr[-1 * (int)pixel_step] * vp8_filter[1]) +
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((int)src_ptr[0] * vp8_filter[2]) +
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((int)src_ptr[pixel_step] * vp8_filter[3]) +
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((int)src_ptr[2*pixel_step] * vp8_filter[4]) +
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((int)src_ptr[3*pixel_step] * vp8_filter[5]) +
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(VP8_FILTER_WEIGHT >> 1); /* Rounding */
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/* Normalize back to 0-255 */
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Temp = Temp >> VP8_FILTER_SHIFT;
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if (Temp < 0)
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Temp = 0;
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else if (Temp > 255)
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Temp = 255;
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output_ptr[j] = Temp;
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src_ptr++;
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}
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/* Next row... */
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src_ptr += src_pixels_per_line - output_width;
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output_ptr += output_width;
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}
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}
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static void filter_block2d_second_pass_6
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(
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int *src_ptr,
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unsigned char *output_ptr,
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int output_pitch,
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unsigned int src_pixels_per_line,
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unsigned int pixel_step,
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unsigned int output_height,
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unsigned int output_width,
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const short *vp8_filter
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)
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{
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unsigned int i, j;
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int Temp;
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for (i = 0; i < output_height; i++)
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{
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for (j = 0; j < output_width; j++)
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{
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/* Apply filter */
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Temp = ((int)src_ptr[-2 * (int)pixel_step] * vp8_filter[0]) +
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((int)src_ptr[-1 * (int)pixel_step] * vp8_filter[1]) +
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((int)src_ptr[0] * vp8_filter[2]) +
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((int)src_ptr[pixel_step] * vp8_filter[3]) +
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((int)src_ptr[2*pixel_step] * vp8_filter[4]) +
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((int)src_ptr[3*pixel_step] * vp8_filter[5]) +
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(VP8_FILTER_WEIGHT >> 1); /* Rounding */
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/* Normalize back to 0-255 */
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Temp = Temp >> VP8_FILTER_SHIFT;
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if (Temp < 0)
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Temp = 0;
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else if (Temp > 255)
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Temp = 255;
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output_ptr[j] = (unsigned char)Temp;
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src_ptr++;
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}
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/* Start next row */
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src_ptr += src_pixels_per_line - output_width;
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output_ptr += output_pitch;
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}
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}
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/*
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* The only functional difference between filter_block2d_second_pass()
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* and this function is that filter_block2d_second_pass() does a sixtap
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* filter on the input and stores it in the output. This function
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* (filter_block2d_second_pass_avg()) does a sixtap filter on the input,
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* and then averages that with the content already present in the output
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* ((filter_result + dest + 1) >> 1) and stores that in the output.
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*/
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static void filter_block2d_second_pass_avg_6
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(
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int *src_ptr,
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unsigned char *output_ptr,
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int output_pitch,
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unsigned int src_pixels_per_line,
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unsigned int pixel_step,
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unsigned int output_height,
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unsigned int output_width,
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const short *vp8_filter
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)
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{
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unsigned int i, j;
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int Temp;
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|
for (i = 0; i < output_height; i++)
|
|
{
|
|
for (j = 0; j < output_width; j++)
|
|
{
|
|
/* Apply filter */
|
|
Temp = ((int)src_ptr[-2 * (int)pixel_step] * vp8_filter[0]) +
|
|
((int)src_ptr[-1 * (int)pixel_step] * vp8_filter[1]) +
|
|
((int)src_ptr[0] * vp8_filter[2]) +
|
|
((int)src_ptr[pixel_step] * vp8_filter[3]) +
|
|
((int)src_ptr[2*pixel_step] * vp8_filter[4]) +
|
|
((int)src_ptr[3*pixel_step] * vp8_filter[5]) +
|
|
(VP8_FILTER_WEIGHT >> 1); /* Rounding */
|
|
|
|
/* Normalize back to 0-255 */
|
|
Temp = Temp >> VP8_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 vp8_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 = vp8_sub_pel_filters_6[xoffset]; /* 6 tap */
|
|
VFilter = vp8_sub_pel_filters_6[yoffset]; /* 6 tap */
|
|
|
|
filter_block2d_6(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter);
|
|
}
|
|
void vp8_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 = vp8_sub_pel_filters_6[xoffset]; /* 6 tap */
|
|
VFilter = vp8_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 vp8_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 = vp8_sub_pel_filters_6[xoffset]; /* 6 tap */
|
|
VFilter = vp8_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 vp8_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 = vp8_sub_pel_filters_6[xoffset]; /* 6 tap */
|
|
VFilter = vp8_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 vp8_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 = vp8_sub_pel_filters_6[xoffset]; /* 6 tap */
|
|
VFilter = vp8_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 vp8_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 = vp8_sub_pel_filters_6[xoffset]; /* 6 tap */
|
|
VFilter = vp8_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);
|
|
}
|
|
|
|
#if CONFIG_ENHANCED_INTERP
|
|
|
|
#undef Interp_Extend
|
|
#define Interp_Extend 4
|
|
|
|
static void filter_block2d_first_pass_8
|
|
(
|
|
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 *vp8_filter
|
|
)
|
|
{
|
|
unsigned int i, j;
|
|
int Temp;
|
|
|
|
for (i = 0; i < output_height; i++)
|
|
{
|
|
for (j = 0; j < output_width; j++)
|
|
{
|
|
#if Interp_Extend == 4
|
|
Temp = ((int)src_ptr[-3 * (int)pixel_step] * vp8_filter[0]) +
|
|
((int)src_ptr[-2 * (int)pixel_step] * vp8_filter[1]) +
|
|
((int)src_ptr[-1 * (int)pixel_step] * vp8_filter[2]) +
|
|
((int)src_ptr[0] * vp8_filter[3]) +
|
|
((int)src_ptr[pixel_step] * vp8_filter[4]) +
|
|
((int)src_ptr[2 * pixel_step] * vp8_filter[5]) +
|
|
((int)src_ptr[3 * pixel_step] * vp8_filter[6]) +
|
|
((int)src_ptr[4 * pixel_step] * vp8_filter[7]) +
|
|
(VP8_FILTER_WEIGHT >> 1); /* Rounding */
|
|
#elif Interp_Extend == 5
|
|
Temp = ((int)src_ptr[-4 * (int)pixel_step] * vp8_filter[0]) +
|
|
((int)src_ptr[-3 * (int)pixel_step] * vp8_filter[1]) +
|
|
((int)src_ptr[-2 * (int)pixel_step] * vp8_filter[2]) +
|
|
((int)src_ptr[-1 * (int)pixel_step] * vp8_filter[3]) +
|
|
((int)src_ptr[0] * vp8_filter[4]) +
|
|
((int)src_ptr[pixel_step] * vp8_filter[5]) +
|
|
((int)src_ptr[2 * pixel_step] * vp8_filter[6]) +
|
|
((int)src_ptr[3 * pixel_step] * vp8_filter[7]) +
|
|
((int)src_ptr[4 * pixel_step] * vp8_filter[8]) +
|
|
((int)src_ptr[5 * pixel_step] * vp8_filter[9]) +
|
|
(VP8_FILTER_WEIGHT >> 1); /* Rounding */
|
|
#endif
|
|
|
|
/* Normalize back to 0-255 */
|
|
Temp = Temp >> VP8_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_8
|
|
(
|
|
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 *vp8_filter
|
|
)
|
|
{
|
|
unsigned int i, j;
|
|
int Temp;
|
|
|
|
for (i = 0; i < output_height; i++)
|
|
{
|
|
for (j = 0; j < output_width; j++)
|
|
{
|
|
/* Apply filter */
|
|
#if Interp_Extend == 4
|
|
Temp = ((int)src_ptr[-3 * (int)pixel_step] * vp8_filter[0]) +
|
|
((int)src_ptr[-2 * (int)pixel_step] * vp8_filter[1]) +
|
|
((int)src_ptr[-1 * (int)pixel_step] * vp8_filter[2]) +
|
|
((int)src_ptr[0] * vp8_filter[3]) +
|
|
((int)src_ptr[pixel_step] * vp8_filter[4]) +
|
|
((int)src_ptr[2 * pixel_step] * vp8_filter[5]) +
|
|
((int)src_ptr[3 * pixel_step] * vp8_filter[6]) +
|
|
((int)src_ptr[4 * pixel_step] * vp8_filter[7]) +
|
|
(VP8_FILTER_WEIGHT >> 1); /* Rounding */
|
|
#elif Interp_Extend == 5
|
|
Temp = ((int)src_ptr[-4 * (int)pixel_step] * vp8_filter[0]) +
|
|
((int)src_ptr[-3 * (int)pixel_step] * vp8_filter[1]) +
|
|
((int)src_ptr[-2 * (int)pixel_step] * vp8_filter[2]) +
|
|
((int)src_ptr[-1 * (int)pixel_step] * vp8_filter[3]) +
|
|
((int)src_ptr[0] * vp8_filter[4]) +
|
|
((int)src_ptr[pixel_step] * vp8_filter[5]) +
|
|
((int)src_ptr[2 * pixel_step] * vp8_filter[6]) +
|
|
((int)src_ptr[3 * pixel_step] * vp8_filter[7]) +
|
|
((int)src_ptr[4 * pixel_step] * vp8_filter[8]) +
|
|
((int)src_ptr[5 * pixel_step] * vp8_filter[9]) +
|
|
(VP8_FILTER_WEIGHT >> 1); /* Rounding */
|
|
#endif
|
|
|
|
/* Normalize back to 0-255 */
|
|
Temp = Temp >> VP8_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_8
|
|
(
|
|
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 *vp8_filter
|
|
)
|
|
{
|
|
unsigned int i, j;
|
|
int Temp;
|
|
|
|
for (i = 0; i < output_height; i++)
|
|
{
|
|
for (j = 0; j < output_width; j++)
|
|
{
|
|
/* Apply filter */
|
|
#if Interp_Extend == 4
|
|
Temp = ((int)src_ptr[-3 * (int)pixel_step] * vp8_filter[0]) +
|
|
((int)src_ptr[-2 * (int)pixel_step] * vp8_filter[1]) +
|
|
((int)src_ptr[-1 * (int)pixel_step] * vp8_filter[2]) +
|
|
((int)src_ptr[0] * vp8_filter[3]) +
|
|
((int)src_ptr[pixel_step] * vp8_filter[4]) +
|
|
((int)src_ptr[2 * pixel_step] * vp8_filter[5]) +
|
|
((int)src_ptr[3 * pixel_step] * vp8_filter[6]) +
|
|
((int)src_ptr[4 * pixel_step] * vp8_filter[7]) +
|
|
(VP8_FILTER_WEIGHT >> 1); /* Rounding */
|
|
#elif Interp_Extend == 5
|
|
Temp = ((int)src_ptr[-4 * (int)pixel_step] * vp8_filter[0]) +
|
|
((int)src_ptr[-3 * (int)pixel_step] * vp8_filter[1]) +
|
|
((int)src_ptr[-2 * (int)pixel_step] * vp8_filter[2]) +
|
|
((int)src_ptr[-1 * (int)pixel_step] * vp8_filter[3]) +
|
|
((int)src_ptr[0] * vp8_filter[4]) +
|
|
((int)src_ptr[pixel_step] * vp8_filter[5]) +
|
|
((int)src_ptr[2 * pixel_step] * vp8_filter[6]) +
|
|
((int)src_ptr[3 * pixel_step] * vp8_filter[7]) +
|
|
((int)src_ptr[4 * pixel_step] * vp8_filter[8]) +
|
|
((int)src_ptr[5 * pixel_step] * vp8_filter[9]) +
|
|
(VP8_FILTER_WEIGHT >> 1); /* Rounding */
|
|
#endif
|
|
|
|
/* Normalize back to 0-255 */
|
|
Temp = Temp >> VP8_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;
|
|
}
|
|
}
|
|
|
|
static void filter_block2d_8
|
|
(
|
|
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_8(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_8(FData + 4*(Interp_Extend-1), output_ptr, output_pitch, 4, 4, 4, 4, VFilter);
|
|
}
|
|
|
|
void vp8_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 = vp8_sub_pel_filters_8[xoffset]; /* 8 tap */
|
|
VFilter = vp8_sub_pel_filters_8[yoffset]; /* 8 tap */
|
|
|
|
filter_block2d_8(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter);
|
|
}
|
|
|
|
void vp8_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 = vp8_sub_pel_filters_8s[xoffset]; /* 8 tap */
|
|
VFilter = vp8_sub_pel_filters_8s[yoffset]; /* 8 tap */
|
|
|
|
filter_block2d_8(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter);
|
|
}
|
|
|
|
void vp8_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;
|
|
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 = vp8_sub_pel_filters_8[xoffset]; /* 6 tap */
|
|
VFilter = vp8_sub_pel_filters_8[yoffset]; /* 6 tap */
|
|
|
|
/* First filter 1-D horizontally... */
|
|
filter_block2d_first_pass_8(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_8(FData + 8*(Interp_Extend-1), dst_ptr, dst_pitch, 8, 8, 8, 8, VFilter);
|
|
}
|
|
|
|
void vp8_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;
|
|
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 = vp8_sub_pel_filters_8s[xoffset]; /* 6 tap */
|
|
VFilter = vp8_sub_pel_filters_8s[yoffset]; /* 6 tap */
|
|
|
|
/* First filter 1-D horizontally... */
|
|
filter_block2d_first_pass_8(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_8(FData + 8*(Interp_Extend-1), dst_ptr, dst_pitch, 8, 8, 8, 8, VFilter);
|
|
}
|
|
|
|
void vp8_eighttap_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 = vp8_sub_pel_filters_8[xoffset]; /* 6 tap */
|
|
VFilter = vp8_sub_pel_filters_8[yoffset]; /* 6 tap */
|
|
|
|
/* First filter 1-D horizontally... */
|
|
filter_block2d_first_pass_8(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_8(FData + 8*(Interp_Extend-1), dst_ptr, dst_pitch, 8, 8, 8, 8, VFilter);
|
|
}
|
|
|
|
void vp8_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
|
|
)
|
|
{
|
|
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 = vp8_sub_pel_filters_8s[xoffset]; /* 6 tap */
|
|
VFilter = vp8_sub_pel_filters_8s[yoffset]; /* 6 tap */
|
|
|
|
/* First filter 1-D horizontally... */
|
|
filter_block2d_first_pass_8(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_8(FData + 8*(Interp_Extend-1), dst_ptr, dst_pitch, 8, 8, 8, 8, VFilter);
|
|
}
|
|
|
|
void vp8_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;
|
|
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 = vp8_sub_pel_filters_8[xoffset]; /* 6 tap */
|
|
VFilter = vp8_sub_pel_filters_8[yoffset]; /* 6 tap */
|
|
|
|
/* First filter 1-D horizontally... */
|
|
filter_block2d_first_pass_8(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_8(FData + 8*(Interp_Extend-1), dst_ptr, dst_pitch, 8, 8, 4, 8, VFilter);
|
|
|
|
}
|
|
|
|
void vp8_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;
|
|
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 = vp8_sub_pel_filters_8s[xoffset]; /* 6 tap */
|
|
VFilter = vp8_sub_pel_filters_8s[yoffset]; /* 6 tap */
|
|
|
|
/* First filter 1-D horizontally... */
|
|
filter_block2d_first_pass_8(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_8(FData + 8*(Interp_Extend-1), dst_ptr, dst_pitch, 8, 8, 4, 8, VFilter);
|
|
|
|
}
|
|
|
|
void vp8_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;
|
|
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 = vp8_sub_pel_filters_8[xoffset]; /* 6 tap */
|
|
VFilter = vp8_sub_pel_filters_8[yoffset]; /* 6 tap */
|
|
|
|
/* First filter 1-D horizontally... */
|
|
filter_block2d_first_pass_8(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_8(FData + 16*(Interp_Extend-1), dst_ptr, dst_pitch, 16, 16, 16, 16, VFilter);
|
|
|
|
}
|
|
|
|
void vp8_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;
|
|
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 = vp8_sub_pel_filters_8s[xoffset]; /* 6 tap */
|
|
VFilter = vp8_sub_pel_filters_8s[yoffset]; /* 6 tap */
|
|
|
|
/* First filter 1-D horizontally... */
|
|
filter_block2d_first_pass_8(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_8(FData + 16*(Interp_Extend-1), dst_ptr, dst_pitch, 16, 16, 16, 16, VFilter);
|
|
|
|
}
|
|
|
|
void vp8_eighttap_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 = vp8_sub_pel_filters_8[xoffset]; /* 6 tap */
|
|
VFilter = vp8_sub_pel_filters_8[yoffset]; /* 6 tap */
|
|
|
|
/* First filter 1-D horizontally... */
|
|
filter_block2d_first_pass_8(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_8(FData + 16*(Interp_Extend-1), dst_ptr, dst_pitch,
|
|
16, 16, 16, 16, VFilter);
|
|
}
|
|
|
|
void vp8_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
|
|
)
|
|
{
|
|
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 = vp8_sub_pel_filters_8s[xoffset]; /* 6 tap */
|
|
VFilter = vp8_sub_pel_filters_8s[yoffset]; /* 6 tap */
|
|
|
|
/* First filter 1-D horizontally... */
|
|
filter_block2d_first_pass_8(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_8(FData + 16*(Interp_Extend-1), dst_ptr, dst_pitch,
|
|
16, 16, 16, 16, VFilter);
|
|
}
|
|
|
|
#endif /* CONFIG_ENHANCED_INTERP */
|
|
|
|
/****************************************************************************
|
|
*
|
|
* 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 *vp8_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 VP8_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 *vp8_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] * vp8_filter[0]) +
|
|
((int)src_ptr[1] * vp8_filter[1]) +
|
|
(VP8_FILTER_WEIGHT / 2)) >> VP8_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 *vp8_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 VP8_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 *vp8_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] * vp8_filter[0]) +
|
|
((int)src_ptr[width] * vp8_filter[1]) +
|
|
(VP8_FILTER_WEIGHT / 2);
|
|
dst_ptr[j] = (unsigned int)(Temp >> VP8_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 *vp8_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] * vp8_filter[0]) +
|
|
((int)src_ptr[width] * vp8_filter[1]) +
|
|
(VP8_FILTER_WEIGHT / 2);
|
|
dst_ptr[j] = (unsigned int)(((Temp >> VP8_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 vp8_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 = vp8_bilinear_filters[xoffset];
|
|
VFilter = vp8_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 vp8_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 = vp8_bilinear_filters[xoffset];
|
|
VFilter = vp8_bilinear_filters[yoffset];
|
|
|
|
filter_block2d_bil(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 8, 8);
|
|
|
|
}
|
|
|
|
void vp8_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 = vp8_bilinear_filters[xoffset];
|
|
VFilter = vp8_bilinear_filters[yoffset];
|
|
|
|
filter_block2d_bil_avg(src_ptr, dst_ptr, src_pixels_per_line,
|
|
dst_pitch, HFilter, VFilter, 8, 8);
|
|
}
|
|
|
|
void vp8_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 = vp8_bilinear_filters[xoffset];
|
|
VFilter = vp8_bilinear_filters[yoffset];
|
|
|
|
filter_block2d_bil(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 8, 4);
|
|
|
|
}
|
|
|
|
void vp8_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 = vp8_bilinear_filters[xoffset];
|
|
VFilter = vp8_bilinear_filters[yoffset];
|
|
|
|
filter_block2d_bil(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter, 16, 16);
|
|
}
|
|
|
|
void vp8_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 = vp8_bilinear_filters[xoffset];
|
|
VFilter = vp8_bilinear_filters[yoffset];
|
|
|
|
filter_block2d_bil_avg(src_ptr, dst_ptr, src_pixels_per_line,
|
|
dst_pitch, HFilter, VFilter, 16, 16);
|
|
}
|