1*09537850SAkhilesh Sanikop// Copyright 2020 The libgav1 Authors 2*09537850SAkhilesh Sanikop// 3*09537850SAkhilesh Sanikop// Licensed under the Apache License, Version 2.0 (the "License"); 4*09537850SAkhilesh Sanikop// you may not use this file except in compliance with the License. 5*09537850SAkhilesh Sanikop// You may obtain a copy of the License at 6*09537850SAkhilesh Sanikop// 7*09537850SAkhilesh Sanikop// http://www.apache.org/licenses/LICENSE-2.0 8*09537850SAkhilesh Sanikop// 9*09537850SAkhilesh Sanikop// Unless required by applicable law or agreed to in writing, software 10*09537850SAkhilesh Sanikop// distributed under the License is distributed on an "AS IS" BASIS, 11*09537850SAkhilesh Sanikop// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12*09537850SAkhilesh Sanikop// See the License for the specific language governing permissions and 13*09537850SAkhilesh Sanikop// limitations under the License. 14*09537850SAkhilesh Sanikop 15*09537850SAkhilesh Sanikop// Constants used for cdef implementations. 16*09537850SAkhilesh Sanikop// This will be included inside an anonymous namespace on files where these are 17*09537850SAkhilesh Sanikop// necessary. 18*09537850SAkhilesh Sanikop 19*09537850SAkhilesh Sanikopconst int8_t (*const kCdefDirections)[2][2] = kCdefDirectionsPadded + 2; 20*09537850SAkhilesh Sanikop 21*09537850SAkhilesh Sanikop// Mirror values and pad to 16 elements. 22*09537850SAkhilesh Sanikopalignas(16) constexpr uint32_t kCdefDivisionTable[] = { 23*09537850SAkhilesh Sanikop 840, 420, 280, 210, 168, 140, 120, 105, 24*09537850SAkhilesh Sanikop 120, 140, 168, 210, 280, 420, 840, 0}; 25*09537850SAkhilesh Sanikop 26*09537850SAkhilesh Sanikop// Used when calculating odd |cost[x]| values to mask off unwanted elements. 27*09537850SAkhilesh Sanikop// Holds elements 1 3 5 X 5 3 1 X 28*09537850SAkhilesh Sanikopalignas(16) constexpr uint32_t kCdefDivisionTableOdd[] = {420, 210, 140, 0, 29*09537850SAkhilesh Sanikop 140, 210, 420, 0}; 30