/* * 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 #include "filter.h" #include "vpx_ports/mem.h" DECLARE_ALIGNED(16, const short, vp8_bilinear_filters[8][2]) = { { 128, 0 }, { 112, 16 }, { 96, 32 }, { 80, 48 }, { 64, 64 }, { 48, 80 }, { 32, 96 }, { 16, 112 } }; #if CONFIG_ENHANCED_INTERP #define FILTER_ALPHA 875 DECLARE_ALIGNED(16, const short, vp8_sub_pel_filters[8][2*INTERP_EXTEND]) = { /* Generated using MATLAB: * alpha = 0.875; * b=intfilt(8,4,alpha); * bi=round(128*b); * ba=flipud(reshape([bi 0], 8, 8)); * % Now normalize the powers of the polyphase components * disp(num2str(ba, '%d,')) */ #if FILTER_ALPHA == 90 /* alpha = 0.9 */ { 0, 0, 0, 128, 0, 0, 0, 0}, {-3, 6, -13, 126, 18, -8, 5, -3}, {-6, 11, -22, 118, 39, -16, 9, -5}, {-8, 14, -27, 104, 62, -23, 13, -7}, {-8, 14, -27, 85, 85, -27, 14, -8}, {-7, 13, -23, 62, 104, -27, 14, -8}, {-5, 9, -16, 39, 118, -22, 11, -6}, {-3, 5, -8, 18, 126, -13, 6, -3} #elif FILTER_ALPHA == 875 /* alpha = 0.875 */ { 0, 0, 0, 128, 0, 0, 0, 0}, {-3, 6, -13, 126, 18, -8, 4, -2}, {-5, 10, -22, 118, 39, -16, 9, -5}, {-7, 13, -26, 104, 62, -23, 12, -7}, {-7, 13, -27, 85, 85, -27, 13, -7}, {-7, 12, -23, 62, 104, -26, 13, -7}, {-5, 9, -16, 39, 118, -22, 10, -5}, {-2, 4, -8, 18, 126, -13, 6, -3} #elif FILTER_ALPHA == 85 /* alpha = 0.85 */ { 0, 0, 0, 128, 0, 0, 0, 0}, {-2, 5, -12, 124, 18, -7, 4, -2}, {-4, 10, -20, 114, 39, -15, 8, -4}, {-5, 12, -24, 100, 60, -21, 11, -5}, {-5, 12, -24, 81, 81, -24, 12, -5}, {-5, 11, -21, 60, 100, -24, 12, -5}, {-4, 8, -15, 39, 114, -20, 10, -4}, {-2, 4, -7, 18, 124, -12, 5, -2} #endif }; #if EDGE_PIXEL_FILTER > 0 #define EDGE_SIMPLE_THRESH 128 #define EDGE_GRAD_THRESH 128 #define EDGE_GRADS2X2_THRESH 4 /* TODO: Refine these filters */ DECLARE_ALIGNED(16, const short, vp8_sub_pel_filters_ns[64][4*EDGE_PIXEL_FILTER_EXTEND*EDGE_PIXEL_FILTER_EXTEND]) = { #if EDGE_PIXEL_FILTER_EXTEND == 4 {0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, -8, 124, 13, -1, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, -11, 112, 30, -3, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, -11, 94, 51, -6, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, -9, 73, 73, -9, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, -6, 51, 94, -11, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, -3, 30, 112, -11, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, -1, 13, 124, -8, 0, 0, 0, 0, 0, 0, 0, 0}, {0, -8, 0, 0, 0, 124, 0, 0, 0, 13, 0, 0, 0, -1, 0, 0}, {0, -8, -1, 0, -7, 120, 12, 0, -1, 12, 1, 0, 0, 0, 0, 0}, {1, -7, -2, 0, -11, 108, 29, -3, -1, 11, 3, 0, 0, 0, 0, 0}, {0, -6, -3, 0, -10, 91, 49, -6, -1, 9, 5, 0, 0, 0, 0, 0}, {0, -4, -4, 0, -8, 70, 70, -8, -1, 7, 7, -1, 0, 0, 0, 0}, {0, -3, -6, 0, -6, 49, 91, -10, 0, 5, 9, -1, 0, 0, 0, 0}, {0, -2, -7, 1, -3, 29, 108, -11, 0, 3, 11, -1, 0, 0, 0, 0}, {0, -1, -8, 0, 0, 12, 120, -7, 0, 1, 12, -1, 0, 0, 0, 0}, {0, -11, 0, 0, 0, 112, 0, 0, 0, 30, 0, 0, 0, -3, 0, 0}, {1, -11, -1, 0, -7, 108, 11, 0, -2, 29, 3, 0, 0, -3, 0, 0}, {1, -10, -2, 0, -10, 98, 26, -3, -2, 26, 7, 0, 0, -3, 0, 0}, {1, -8, -4, 0, -10, 82, 44, -5, -2, 22, 12, -1, 0, -2, -1, 0}, {0, -6, -6, 0, -7, 64, 64, -7, -2, 17, 17, -2, 0, -2, -2, 0}, {0, -4, -8, 1, -5, 44, 82, -10, -1, 12, 22, -2, 0, -1, -2, 0}, {0, -2, -10, 1, -3, 26, 98, -10, 0, 7, 26, -2, 0, 0, -3, 0}, {0, -1, -11, 1, 0, 11, 108, -7, 0, 3, 29, -2, 0, 0, -3, 0}, {0, -11, 0, 0, 0, 94, 0, 0, 0, 51, 0, 0, 0, -6, 0, 0}, {0, -10, -1, 0, -6, 91, 9, 0, -3, 49, 5, 0, 0, -6, 0, 0}, {1, -10, -2, 0, -8, 82, 22, -2, -4, 44, 12, -1, 0, -5, -1, 0}, {0, -8, -4, 0, -8, 70, 37, -4, -4, 37, 20, -2, 0, -4, -2, 0}, {0, -6, -6, 0, -6, 54, 54, -6, -3, 28, 28, -3, 0, -3, -3, 0}, {0, -4, -8, 0, -4, 37, 70, -8, -2, 20, 37, -4, 0, -2, -4, 0}, {0, -2, -10, 1, -2, 22, 82, -8, -1, 12, 44, -4, 0, -1, -5, 0}, {0, -1, -10, 0, 0, 9, 91, -6, 0, 5, 49, -3, 0, 0, -6, 0}, {0, -9, 0, 0, 0, 73, 0, 0, 0, 73, 0, 0, 0, -9, 0, 0}, {0, -8, -1, 0, -4, 70, 7, 0, -4, 70, 7, 0, 0, -8, -1, 0}, {0, -7, -2, 0, -6, 64, 17, -2, -6, 64, 17, -2, 0, -7, -2, 0}, {0, -6, -3, 0, -6, 54, 28, -3, -6, 54, 28, -3, 0, -6, -3, 0}, {0, -5, -5, 0, -5, 42, 42, -5, -5, 42, 42, -5, 0, -5, -5, 0}, {0, -3, -6, 0, -3, 28, 54, -6, -3, 28, 54, -6, 0, -3, -6, 0}, {0, -2, -7, 0, -2, 17, 64, -6, -2, 17, 64, -6, 0, -2, -7, 0}, {0, -1, -8, 0, 0, 7, 70, -4, 0, 7, 70, -4, 0, -1, -8, 0}, {0, -6, 0, 0, 0, 51, 0, 0, 0, 94, 0, 0, 0, -11, 0, 0}, {0, -6, 0, 0, -3, 49, 5, 0, -6, 91, 9, 0, 0, -10, -1, 0}, {0, -5, -1, 0, -4, 44, 12, -1, -8, 82, 22, -2, 1, -10, -2, 0}, {0, -4, -2, 0, -4, 37, 20, -2, -8, 70, 37, -4, 0, -8, -4, 0}, {0, -3, -3, 0, -3, 28, 28, -3, -6, 54, 54, -6, 0, -6, -6, 0}, {0, -2, -4, 0, -2, 20, 37, -4, -4, 37, 70, -8, 0, -4, -8, 0}, {0, -1, -5, 0, -1, 12, 44, -4, -2, 22, 82, -8, 0, -2, -10, 1}, {0, 0, -6, 0, 0, 5, 49, -3, 0, 9, 91, -6, 0, -1, -10, 0}, {0, -3, 0, 0, 0, 30, 0, 0, 0, 112, 0, 0, 0, -11, 0, 0}, {0, -3, 0, 0, -2, 29, 3, 0, -7, 108, 11, 0, 1, -11, -1, 0}, {0, -3, 0, 0, -2, 26, 7, 0, -10, 98, 26, -3, 1, -10, -2, 0}, {0, -2, -1, 0, -2, 22, 12, -1, -10, 82, 44, -5, 1, -8, -4, 0}, {0, -2, -2, 0, -2, 17, 17, -2, -7, 64, 64, -7, 0, -6, -6, 0}, {0, -1, -2, 0, -1, 12, 22, -2, -5, 44, 82, -10, 0, -4, -8, 1}, {0, 0, -3, 0, 0, 7, 26, -2, -3, 26, 98, -10, 0, -2, -10, 1}, {0, 0, -3, 0, 0, 3, 29, -2, 0, 11, 108, -7, 0, -1, -11, 1}, {0, -1, 0, 0, 0, 13, 0, 0, 0, 124, 0, 0, 0, -8, 0, 0}, {0, 0, 0, 0, -1, 12, 1, 0, -8, 120, 12, 0, 0, -7, -1, 0}, {0, 0, 0, 0, -1, 11, 3, 0, -11, 108, 29, -3, 1, -7, -2, 0}, {0, 0, 0, 0, -1, 9, 5, 0, -10, 91, 49, -6, 0, -6, -3, 0}, {0, 0, 0, 0, -1, 7, 7, -1, -8, 70, 70, -8, 0, -4, -4, 0}, {0, 0, 0, 0, 0, 5, 9, -1, -6, 49, 91, -10, 0, -3, -6, 0}, {0, 0, 0, 0, 0, 3, 11, -1, -3, 29, 108, -11, 0, -2, -7, 1}, {0, 0, 0, 0, 0, 1, 12, -1, 0, 12, 120, -8, 0, -1, -7, 0} #elif EDGE_PIXEL_FILTER_EXTEND == 6 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, -11, 124, 15, -4, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, -17, 114, 34, -9, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, -19, 98, 56, -14, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, -18, 78, 78, -18, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, -14, 56, 98, -19, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, -9, 34, 114, -17, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -4, 15, 124, -11, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 3, 0, 0, 0, 0, 0, -11, 0, 0, 0, 0, 0, 124, 0, 0, 0, 0, 0, 15, 0, 0, 0, 0, 0, -4, 0, 0, 0, 0, 0, 1, 0, 0, 0}, {0, 0, 3, 0, 0, 0, 0, 1, -11, -1, 0, 0, 3, -11, 121, 15, -4, 0, 0, -1, 15, 2, 0, 0, 0, 0, -4, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 3, 1, 0, 0, 0, 1, -10, -3, 1, 0, 4, -17, 111, 34, -9, 2, 0, -2, 14, 4, -1, 0, 0, 0, -4, -1, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 2, 1, 0, 0, 0, 2, -8, -5, 1, 0, 4, -18, 95, 54, -13, 3, 0, -2, 12, 7, -2, 0, 0, 0, -3, -2, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 2, 2, 0, 0, 0, 1, -7, -7, 1, 0, 4, -17, 76, 76, -17, 4, 0, -2, 9, 9, -2, 0, 0, 0, -2, -2, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 1, 2, 0, 0, 0, 1, -5, -8, 2, 0, 3, -13, 54, 95, -18, 4, 0, -2, 7, 12, -2, 0, 0, 0, -2, -3, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 1, 3, 0, 0, 0, 1, -3, -10, 1, 0, 2, -9, 34, 111, -17, 4, 0, -1, 4, 14, -2, 0, 0, 0, -1, -4, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 0, 3, 0, 0, 0, 0, -1, -11, 1, 0, 0, -4, 15, 121, -11, 3, 0, 0, 2, 15, -1, 0, 0, 0, 0, -4, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, 4, 0, 0, 0, 0, 0, -17, 0, 0, 0, 0, 0, 114, 0, 0, 0, 0, 0, 34, 0, 0, 0, 0, 0, -9, 0, 0, 0, 0, 0, 2, 0, 0, 0}, {0, 0, 4, 0, 0, 0, 0, 1, -17, -2, 0, 0, 3, -10, 111, 14, -4, 0, 1, -3, 34, 4, -1, 0, 0, 1, -9, -1, 0, 0, 0, 0, 2, 0, 0, 0}, {0, 0, 4, 1, 0, 0, -1, 2, -15, -5, 1, 0, 4, -15, 101, 31, -8, 1, 1, -5, 31, 9, -2, 0, 0, 1, -8, -2, 1, 0, 0, 0, 1, 0, 0, 0}, {0, -1, 3, 2, 0, 0, -1, 2, -13, -7, 2, 0, 4, -17, 87, 50, -12, 2, 1, -5, 26, 15, -4, 1, 0, 1, -7, -4, 1, 0, 0, 0, 1, 1, 0, 0}, {0, -1, 3, 3, -1, 0, 0, 2, -10, -10, 2, 0, 3, -16, 69, 69, -16, 3, 1, -5, 21, 21, -5, 1, 0, 1, -5, -5, 1, 0, 0, 0, 1, 1, 0, 0}, {0, 0, 2, 3, -1, 0, 0, 2, -7, -13, 2, -1, 2, -12, 50, 87, -17, 4, 1, -4, 15, 26, -5, 1, 0, 1, -4, -7, 1, 0, 0, 0, 1, 1, 0, 0}, {0, 0, 1, 4, 0, 0, 0, 1, -5, -15, 2, -1, 1, -8, 31, 101, -15, 4, 0, -2, 9, 31, -5, 1, 0, 1, -2, -8, 1, 0, 0, 0, 0, 1, 0, 0}, {0, 0, 0, 4, 0, 0, 0, 0, -2, -17, 1, 0, 0, -4, 14, 111, -10, 3, 0, -1, 4, 34, -3, 1, 0, 0, -1, -9, 1, 0, 0, 0, 0, 2, 0, 0}, {0, 0, 4, 0, 0, 0, 0, 0, -19, 0, 0, 0, 0, 0, 98, 0, 0, 0, 0, 0, 56, 0, 0, 0, 0, 0, -14, 0, 0, 0, 0, 0, 3, 0, 0, 0}, {0, 0, 4, 0, 0, 0, 0, 2, -18, -2, 0, 0, 2, -8, 95, 12, -3, 0, 1, -5, 54, 7, -2, 0, 0, 1, -13, -2, 0, 0, 0, 0, 3, 0, 0, 0}, {0, -1, 4, 1, 0, 0, -1, 2, -17, -5, 1, 0, 3, -13, 87, 26, -7, 1, 2, -7, 50, 15, -4, 1, 0, 2, -12, -4, 1, 0, 0, 0, 2, 1, 0, 0}, {0, -1, 3, 2, 0, 0, -1, 3, -15, -8, 2, 0, 3, -15, 75, 43, -11, 2, 2, -8, 43, 24, -6, 1, 0, 2, -10, -6, 1, 0, 0, 0, 2, 1, 0, 0}, {0, -1, 3, 3, -1, 0, -1, 2, -12, -12, 2, -1, 3, -13, 59, 59, -13, 3, 2, -8, 34, 34, -8, 2, 0, 2, -8, -8, 2, 0, 0, 0, 2, 2, 0, 0}, {0, 0, 2, 3, -1, 0, 0, 2, -8, -15, 3, -1, 2, -11, 43, 75, -15, 3, 1, -6, 24, 43, -8, 2, 0, 1, -6, -10, 2, 0, 0, 0, 1, 2, 0, 0}, {0, 0, 1, 4, -1, 0, 0, 1, -5, -17, 2, -1, 1, -7, 26, 87, -13, 3, 1, -4, 15, 50, -7, 2, 0, 1, -4, -12, 2, 0, 0, 0, 1, 2, 0, 0}, {0, 0, 0, 4, 0, 0, 0, 0, -2, -18, 2, 0, 0, -3, 12, 95, -8, 2, 0, -2, 7, 54, -5, 1, 0, 0, -2, -13, 1, 0, 0, 0, 0, 3, 0, 0}, {0, 0, 4, 0, 0, 0, 0, 0, -18, 0, 0, 0, 0, 0, 78, 0, 0, 0, 0, 0, 78, 0, 0, 0, 0, 0, -18, 0, 0, 0, 0, 0, 4, 0, 0, 0}, {0, 0, 4, 0, 0, 0, 0, 1, -17, -2, 0, 0, 2, -7, 76, 9, -2, 0, 2, -7, 76, 9, -2, 0, 0, 1, -17, -2, 0, 0, 0, 0, 4, 0, 0, 0}, {0, 0, 3, 1, 0, 0, -1, 2, -16, -5, 1, 0, 3, -10, 69, 21, -5, 1, 3, -10, 69, 21, -5, 1, -1, 2, -16, -5, 1, 0, 0, 0, 3, 1, 0, 0}, {0, -1, 3, 2, 0, 0, -1, 2, -13, -8, 2, 0, 3, -12, 59, 34, -8, 2, 3, -12, 59, 34, -8, 2, -1, 2, -13, -8, 2, 0, 0, -1, 3, 2, 0, 0}, {0, 0, 2, 2, 0, 0, 0, 2, -10, -10, 2, 0, 2, -10, 47, 47, -10, 2, 2, -11, 47, 47, -11, 2, 0, 2, -11, -11, 2, 0, 0, 0, 2, 2, 0, 0}, {0, 0, 2, 3, -1, 0, 0, 2, -8, -13, 2, -1, 2, -8, 34, 59, -12, 3, 2, -8, 34, 59, -12, 3, 0, 2, -8, -13, 2, -1, 0, 0, 2, 3, -1, 0}, {0, 0, 1, 3, 0, 0, 0, 1, -5, -16, 2, -1, 1, -5, 21, 69, -10, 3, 1, -5, 21, 69, -10, 3, 0, 1, -5, -16, 2, -1, 0, 0, 1, 3, 0, 0}, {0, 0, 0, 4, 0, 0, 0, 0, -2, -17, 1, 0, 0, -2, 9, 76, -7, 2, 0, -2, 9, 76, -7, 2, 0, 0, -2, -17, 1, 0, 0, 0, 0, 4, 0, 0}, {0, 0, 3, 0, 0, 0, 0, 0, -14, 0, 0, 0, 0, 0, 56, 0, 0, 0, 0, 0, 98, 0, 0, 0, 0, 0, -19, 0, 0, 0, 0, 0, 4, 0, 0, 0}, {0, 0, 3, 0, 0, 0, 0, 1, -13, -2, 0, 0, 1, -5, 54, 7, -2, 0, 2, -8, 95, 12, -3, 0, 0, 2, -18, -2, 0, 0, 0, 0, 4, 0, 0, 0}, {0, 0, 2, 1, 0, 0, 0, 2, -12, -4, 1, 0, 2, -7, 50, 15, -4, 1, 3, -13, 87, 26, -7, 1, -1, 2, -17, -5, 1, 0, 0, -1, 4, 1, 0, 0}, {0, 0, 2, 1, 0, 0, 0, 2, -11, -6, 1, 0, 2, -8, 43, 24, -6, 1, 3, -15, 75, 43, -10, 2, -1, 3, -15, -8, 2, 0, 0, -1, 3, 2, 0, 0}, {0, 0, 2, 2, 0, 0, 0, 2, -8, -8, 2, 0, 2, -8, 34, 34, -8, 2, 3, -13, 59, 59, -13, 3, -1, 2, -12, -12, 2, -1, 0, -1, 3, 3, -1, 0}, {0, 0, 1, 2, 0, 0, 0, 1, -6, -11, 2, 0, 1, -6, 24, 43, -8, 2, 2, -10, 43, 75, -15, 3, 0, 2, -8, -15, 3, -1, 0, 0, 2, 3, -1, 0}, {0, 0, 1, 2, 0, 0, 0, 1, -4, -12, 2, 0, 1, -4, 15, 50, -7, 2, 1, -7, 26, 87, -13, 3, 0, 1, -5, -17, 2, -1, 0, 0, 1, 4, -1, 0}, {0, 0, 0, 3, 0, 0, 0, 0, -2, -13, 1, 0, 0, -2, 7, 54, -5, 1, 0, -3, 12, 95, -8, 2, 0, 0, -2, -18, 2, 0, 0, 0, 0, 4, 0, 0}, {0, 0, 2, 0, 0, 0, 0, 0, -9, 0, 0, 0, 0, 0, 34, 0, 0, 0, 0, 0, 114, 0, 0, 0, 0, 0, -17, 0, 0, 0, 0, 0, 4, 0, 0, 0}, {0, 0, 2, 0, 0, 0, 0, 1, -9, -1, 0, 0, 1, -3, 34, 4, -1, 0, 3, -10, 111, 14, -4, 0, 0, 1, -17, -2, 0, 0, 0, 0, 4, 0, 0, 0}, {0, 0, 1, 0, 0, 0, 0, 1, -8, -2, 1, 0, 1, -5, 31, 9, -2, 0, 4, -15, 101, 31, -8, 1, 0, 2, -15, -5, 1, 0, 0, -1, 4, 1, 0, 0}, {0, 0, 1, 1, 0, 0, 0, 1, -7, -4, 1, 0, 1, -5, 26, 15, -4, 1, 4, -17, 87, 50, -12, 2, -1, 2, -13, -7, 2, 0, 0, -1, 3, 2, 0, 0}, {0, 0, 1, 1, 0, 0, 0, 1, -5, -5, 1, 0, 1, -5, 21, 21, -5, 1, 3, -16, 69, 69, -16, 3, 0, 2, -10, -10, 2, 0, 0, -1, 3, 3, -1, 0}, {0, 0, 1, 1, 0, 0, 0, 1, -4, -7, 1, 0, 1, -4, 15, 26, -5, 1, 2, -12, 50, 87, -17, 4, 0, 2, -7, -13, 2, -1, 0, 0, 2, 3, -1, 0}, {0, 0, 0, 1, 0, 0, 0, 1, -2, -8, 1, 0, 0, -2, 9, 31, -5, 1, 1, -8, 31, 101, -15, 4, 0, 1, -5, -15, 2, 0, 0, 0, 1, 4, -1, 0}, {0, 0, 0, 2, 0, 0, 0, 0, -1, -9, 1, 0, 0, -1, 4, 34, -3, 1, 0, -4, 14, 111, -10, 3, 0, 0, -2, -17, 1, 0, 0, 0, 0, 4, 0, 0}, {0, 0, 1, 0, 0, 0, 0, 0, -4, 0, 0, 0, 0, 0, 15, 0, 0, 0, 0, 0, 124, 0, 0, 0, 0, 0, -11, 0, 0, 0, 0, 0, 3, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, -4, 0, 0, 0, 0, -1, 15, 2, 0, 0, 3, -11, 121, 15, -4, 0, 0, 1, -11, -1, 0, 0, 0, 0, 3, 0, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, -4, -1, 0, 0, 0, -2, 14, 4, -1, 0, 4, -17, 111, 34, -9, 2, 0, 1, -10, -3, 1, 0, 0, 0, 3, 1, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, -3, -2, 0, 0, 0, -2, 12, 7, -2, 0, 4, -18, 95, 54, -13, 3, 0, 2, -8, -5, 1, 0, 0, 0, 2, 1, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, -2, -2, 0, 0, 0, -2, 9, 9, -2, 0, 4, -17, 76, 76, -17, 4, 0, 1, -7, -7, 1, 0, 0, 0, 2, 2, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, -2, -3, 0, 0, 0, -2, 7, 12, -2, 0, 3, -13, 54, 95, -18, 4, 0, 1, -5, -8, 2, 0, 0, 0, 1, 2, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, -1, -4, 0, 0, 0, -1, 4, 14, -2, 0, 2, -9, 34, 111, -17, 4, 0, 1, -3, -10, 1, 0, 0, 0, 1, 3, 0, 0}, {0, 0, 0, 0, 0, 0, 0, 0, 0, -4, 0, 0, 0, 0, 2, 15, -1, 0, 0, -4, 15, 121, -11, 3, 0, 0, -1, -11, 1, 0, 0, 0, 0, 3, 0, 0} #endif }; #endif // EDGE_PIXEL_FILTER #else // CONFIG_ENHANCED_INTERP DECLARE_ALIGNED(16, const short, vp8_sub_pel_filters[8][6]) = { { 0, 0, 128, 0, 0, 0 }, /* note that 1/8 pel positions are just as per alpha -0.5 bicubic */ { 0, -6, 123, 12, -1, 0 }, { 2, -11, 108, 36, -8, 1 }, /* New 1/4 pel 6 tap filter */ { 0, -9, 93, 50, -6, 0 }, { 3, -16, 77, 77, -16, 3 }, /* New 1/2 pel 6 tap filter */ { 0, -6, 50, 93, -9, 0 }, { 1, -8, 36, 108, -11, 2 }, /* New 1/4 pel 6 tap filter */ { 0, -1, 12, 123, -6, 0 }, }; #endif // CONFIG_ENHANCED_INTERP static void filter_block2d_first_pass ( 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 == 3 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 */ #elif 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 ( 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 == 3 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 */ #elif 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; } } #if EDGE_PIXEL_FILTER > 0 static void filter_non_separable ( unsigned char *src_ptr, unsigned char *output_ptr, unsigned int src_pixels_per_line, unsigned int pixel_step, const short *vp8_filter ) { int Temp; #if EDGE_PIXEL_FILTER_EXTEND == 2 /* This code computes non-separable filtering of a pixel * using a 4x4 neighborhood as shown where F is the pixel * that src_ptr points to: * * A B C D * E F G H * I J K L * M N O P * * The 16 filter coefficients are in row by row order * */ Temp = ((int)src_ptr[-1 * (int)src_pixels_per_line - 1 * (int)pixel_step] * vp8_filter[0]) + ((int)src_ptr[-1 * (int)src_pixels_per_line + 0 * (int)pixel_step] * vp8_filter[1]) + ((int)src_ptr[-1 * (int)src_pixels_per_line + 1 * (int)pixel_step] * vp8_filter[2]) + ((int)src_ptr[-1 * (int)src_pixels_per_line + 2 * (int)pixel_step] * vp8_filter[3]) + ((int)src_ptr[ 0 * (int)src_pixels_per_line - 1 * (int)pixel_step] * vp8_filter[4]) + ((int)src_ptr[ 0 * (int)src_pixels_per_line + 0 * (int)pixel_step] * vp8_filter[5]) + ((int)src_ptr[ 0 * (int)src_pixels_per_line + 1 * (int)pixel_step] * vp8_filter[6]) + ((int)src_ptr[ 0 * (int)src_pixels_per_line + 2 * (int)pixel_step] * vp8_filter[7]) + ((int)src_ptr[ 1 * (int)src_pixels_per_line - 1 * (int)pixel_step] * vp8_filter[8]) + ((int)src_ptr[ 1 * (int)src_pixels_per_line + 0 * (int)pixel_step] * vp8_filter[9]) + ((int)src_ptr[ 1 * (int)src_pixels_per_line + 1 * (int)pixel_step] * vp8_filter[10]) + ((int)src_ptr[ 1 * (int)src_pixels_per_line + 2 * (int)pixel_step] * vp8_filter[11]) + ((int)src_ptr[ 2 * (int)src_pixels_per_line - 1 * (int)pixel_step] * vp8_filter[12]) + ((int)src_ptr[ 2 * (int)src_pixels_per_line + 0 * (int)pixel_step] * vp8_filter[13]) + ((int)src_ptr[ 2 * (int)src_pixels_per_line + 1 * (int)pixel_step] * vp8_filter[14]) + ((int)src_ptr[ 2 * (int)src_pixels_per_line + 2 * (int)pixel_step] * vp8_filter[15]) + (VP8_FILTER_WEIGHT >> 1); /* Rounding */ #elif EDGE_PIXEL_FILTER_EXTEND == 3 /* This code computes non-separable filtering of a pixel * using a 6x6 neighborhood as shown where O is the pixel * that src_ptr points to: * * A B C D E F * G H I J K L * M N O P Q R * S T U V W X * Y Z a b c d * e f g h i j * * The 36 filter coefficients are in row by row order * */ Temp = ((int)src_ptr[-2 * (int)src_pixels_per_line - 2 * (int)pixel_step] * vp8_filter[0]) + ((int)src_ptr[-2 * (int)src_pixels_per_line - 1 * (int)pixel_step] * vp8_filter[1]) + ((int)src_ptr[-2 * (int)src_pixels_per_line + 0 * (int)pixel_step] * vp8_filter[2]) + ((int)src_ptr[-2 * (int)src_pixels_per_line + 1 * (int)pixel_step] * vp8_filter[3]) + ((int)src_ptr[-2 * (int)src_pixels_per_line + 2 * (int)pixel_step] * vp8_filter[4]) + ((int)src_ptr[-2 * (int)src_pixels_per_line + 3 * (int)pixel_step] * vp8_filter[5]) + ((int)src_ptr[-1 * (int)src_pixels_per_line - 2 * (int)pixel_step] * vp8_filter[6]) + ((int)src_ptr[-1 * (int)src_pixels_per_line - 1 * (int)pixel_step] * vp8_filter[7]) + ((int)src_ptr[-1 * (int)src_pixels_per_line + 0 * (int)pixel_step] * vp8_filter[8]) + ((int)src_ptr[-1 * (int)src_pixels_per_line + 1 * (int)pixel_step] * vp8_filter[9]) + ((int)src_ptr[-1 * (int)src_pixels_per_line + 2 * (int)pixel_step] * vp8_filter[10]) + ((int)src_ptr[-1 * (int)src_pixels_per_line + 3 * (int)pixel_step] * vp8_filter[11]) + ((int)src_ptr[ 0 * (int)src_pixels_per_line - 2 * (int)pixel_step] * vp8_filter[12]) + ((int)src_ptr[ 0 * (int)src_pixels_per_line - 1 * (int)pixel_step] * vp8_filter[13]) + ((int)src_ptr[ 0 * (int)src_pixels_per_line + 0 * (int)pixel_step] * vp8_filter[14]) + ((int)src_ptr[ 0 * (int)src_pixels_per_line + 1 * (int)pixel_step] * vp8_filter[15]) + ((int)src_ptr[ 0 * (int)src_pixels_per_line + 2 * (int)pixel_step] * vp8_filter[16]) + ((int)src_ptr[ 0 * (int)src_pixels_per_line + 3 * (int)pixel_step] * vp8_filter[17]) + ((int)src_ptr[ 1 * (int)src_pixels_per_line - 2 * (int)pixel_step] * vp8_filter[18]) + ((int)src_ptr[ 1 * (int)src_pixels_per_line - 1 * (int)pixel_step] * vp8_filter[19]) + ((int)src_ptr[ 1 * (int)src_pixels_per_line + 0 * (int)pixel_step] * vp8_filter[20]) + ((int)src_ptr[ 1 * (int)src_pixels_per_line + 1 * (int)pixel_step] * vp8_filter[21]) + ((int)src_ptr[ 1 * (int)src_pixels_per_line + 2 * (int)pixel_step] * vp8_filter[22]) + ((int)src_ptr[ 1 * (int)src_pixels_per_line + 3 * (int)pixel_step] * vp8_filter[23]) + ((int)src_ptr[ 2 * (int)src_pixels_per_line - 2 * (int)pixel_step] * vp8_filter[24]) + ((int)src_ptr[ 2 * (int)src_pixels_per_line - 1 * (int)pixel_step] * vp8_filter[25]) + ((int)src_ptr[ 2 * (int)src_pixels_per_line + 0 * (int)pixel_step] * vp8_filter[26]) + ((int)src_ptr[ 2 * (int)src_pixels_per_line + 1 * (int)pixel_step] * vp8_filter[27]) + ((int)src_ptr[ 2 * (int)src_pixels_per_line + 2 * (int)pixel_step] * vp8_filter[28]) + ((int)src_ptr[ 2 * (int)src_pixels_per_line + 3 * (int)pixel_step] * vp8_filter[29]) + ((int)src_ptr[ 3 * (int)src_pixels_per_line - 2 * (int)pixel_step] * vp8_filter[30]) + ((int)src_ptr[ 3 * (int)src_pixels_per_line - 1 * (int)pixel_step] * vp8_filter[31]) + ((int)src_ptr[ 3 * (int)src_pixels_per_line + 0 * (int)pixel_step] * vp8_filter[32]) + ((int)src_ptr[ 3 * (int)src_pixels_per_line + 1 * (int)pixel_step] * vp8_filter[33]) + ((int)src_ptr[ 3 * (int)src_pixels_per_line + 2 * (int)pixel_step] * vp8_filter[34]) + ((int)src_ptr[ 3 * (int)src_pixels_per_line + 3 * (int)pixel_step] * vp8_filter[35]) + (VP8_FILTER_WEIGHT >> 1); /* Rounding */ #endif Temp = Temp >> VP8_FILTER_SHIFT; if (Temp < 0) Temp = 0; else if (Temp > 255) Temp = 255; *output_ptr = Temp; } static void filter_edge_pixel ( unsigned char *src_ptr, unsigned char *output_ptr, unsigned int src_pixels_per_line, unsigned int pixel_step, int xoffset, int yoffset ) { const short *vp8_filter=vp8_sub_pel_filters_ns[xoffset+8*yoffset]; filter_non_separable(src_ptr, output_ptr, src_pixels_per_line, pixel_step, vp8_filter); } static void get_sobel_grads(unsigned char *src_ptr, int width, int height, unsigned int src_pixels_per_line, unsigned int *sum_g) { /* Assume that the block always has extension of at least 1 */ int i, j; int gx, gy, gd, ga; unsigned char *prev = src_ptr-src_pixels_per_line; unsigned char *prev2 = src_ptr-2*src_pixels_per_line; unsigned char *curr = src_ptr; unsigned char *next = src_ptr+src_pixels_per_line; unsigned char *next2 = src_ptr+2*src_pixels_per_line; sum_g[0] = sum_g[1] = sum_g[2] = sum_g[3] = 0; for (i=0; iEDGE_GRAD_THRESH*4); sum_g[1] += (gy>EDGE_GRAD_THRESH*4); sum_g[2] += (gd>EDGE_GRAD_THRESH*4); sum_g[3] += (ga>EDGE_GRAD_THRESH*4); prev++; prev2++; curr++; next++; next2++; } prev += src_pixels_per_line-width; curr += src_pixels_per_line-width; next += src_pixels_per_line-width; prev2 += src_pixels_per_line-width; next2 += src_pixels_per_line-width; } } static int edge_pixel_detected(unsigned char *src_ptr, int src_pitch) { unsigned int ng[4]; get_sobel_grads(src_ptr, 2, 2, src_pitch, ng); return (ng[0] + ng[1] + ng[2] + ng[3] > EDGE_GRADS2X2_THRESH); } static int edge_pixel_detected_simple(unsigned char *src_ptr, int src_pitch) { int gmax, gmin, gmax2, gmin2; if (src_ptr[0]>src_ptr[1]) { gmax=src_ptr[0]; gmin=src_ptr[1]; } else { gmax=src_ptr[1]; gmin=src_ptr[0]; } src_ptr += src_pitch; if (src_ptr[0]>src_ptr[1]) { gmax2=src_ptr[0]; gmin2=src_ptr[1]; } else { gmax2=src_ptr[1]; gmin2=src_ptr[0]; } if (gmax2>gmax) gmax=gmax2; if (gmin2 EDGE_SIMPLE_THRESH); } void vp8_edge_pixel_interpolation ( unsigned char *src_ptr, int src_pixels_per_line, int width, int height, int xoffset, int yoffset, unsigned char *dst_ptr, int dst_pitch ) { unsigned char *sp = src_ptr; unsigned char *dp = dst_ptr; int i, j; for (i = 0; i < height; ++i, sp+=src_pixels_per_line-width, dp+=dst_pitch-width) for (j = 0; j < width; ++j, ++sp, ++dp) { if (edge_pixel_detected(sp, src_pixels_per_line)) { filter_edge_pixel(sp, dp, src_pixels_per_line, 1, xoffset, yoffset); } } } #endif // EDGE_PIXEL_FILTER /* * 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 ( 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 == 3 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 */ #elif 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 ( 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(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(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[xoffset]; /* 6 tap */ VFilter = vp8_sub_pel_filters[yoffset]; /* 6 tap */ filter_block2d(src_ptr, dst_ptr, src_pixels_per_line, dst_pitch, HFilter, VFilter); #if CONFIG_ENHANCED_INTERP && EDGE_PIXEL_FILTER > 0 vp8_edge_pixel_interpolation(src_ptr, src_pixels_per_line, 4, 4, xoffset, yoffset, dst_ptr, dst_pitch); #endif } 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[xoffset]; /* 6 tap */ VFilter = vp8_sub_pel_filters[yoffset]; /* 6 tap */ /* First filter 1-D horizontally... */ filter_block2d_first_pass(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(FData + 8*(INTERP_EXTEND-1), dst_ptr, dst_pitch, 8, 8, 8, 8, VFilter); #if CONFIG_ENHANCED_INTERP && EDGE_PIXEL_FILTER > 0 vp8_edge_pixel_interpolation(src_ptr, src_pixels_per_line, 8, 8, xoffset, yoffset, dst_ptr, dst_pitch); #endif } 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[xoffset]; /* 6 tap */ VFilter = vp8_sub_pel_filters[yoffset]; /* 6 tap */ /* First filter 1-D horizontally... */ filter_block2d_first_pass(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(FData + 8*(INTERP_EXTEND-1), dst_ptr, dst_pitch, 8, 8, 8, 8, VFilter); #if CONFIG_ENHANCED_INTERP && EDGE_PIXEL_FILTER > 0 vp8_edge_pixel_interpolation(src_ptr, src_pixels_per_line, 8, 8, xoffset, yoffset, dst_ptr, dst_pitch); #endif } 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[xoffset]; /* 6 tap */ VFilter = vp8_sub_pel_filters[yoffset]; /* 6 tap */ /* First filter 1-D horizontally... */ filter_block2d_first_pass(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(FData + 8*(INTERP_EXTEND-1), dst_ptr, dst_pitch, 8, 8, 4, 8, VFilter); #if CONFIG_ENHANCED_INTERP && EDGE_PIXEL_FILTER > 0 vp8_edge_pixel_interpolation(src_ptr, src_pixels_per_line, 8, 4, xoffset, yoffset, dst_ptr, dst_pitch); #endif } 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[xoffset]; /* 6 tap */ VFilter = vp8_sub_pel_filters[yoffset]; /* 6 tap */ /* First filter 1-D horizontally... */ filter_block2d_first_pass(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(FData + 16*(INTERP_EXTEND-1), dst_ptr, dst_pitch, 16, 16, 16, 16, VFilter); #if CONFIG_ENHANCED_INTERP && EDGE_PIXEL_FILTER > 0 vp8_edge_pixel_interpolation(src_ptr, src_pixels_per_line, 16, 16, xoffset, yoffset, dst_ptr, dst_pitch); #endif } 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[xoffset]; /* 6 tap */ VFilter = vp8_sub_pel_filters[yoffset]; /* 6 tap */ /* First filter 1-D horizontally... */ filter_block2d_first_pass(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(FData + 16*(INTERP_EXTEND-1), dst_ptr, dst_pitch, 16, 16, 16, 16, VFilter); #if CONFIG_ENHANCED_INTERP && EDGE_PIXEL_FILTER > 0 vp8_edge_pixel_interpolation(src_ptr, src_pixels_per_line, 16, 16, xoffset, yoffset, dst_ptr, dst_pitch); #endif } /**************************************************************************** * * 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); }