1 /****************************************************************************** 2 * * 3 * Copyright (C) 2018 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ***************************************************************************** 18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 */ 20 #ifndef IXHEAACD_BASIC_FUNCS_H 21 #define IXHEAACD_BASIC_FUNCS_H 22 23 #define LOG_2_TABLE_SIZE 65 24 #define INV_TABLE_SIZE 256 25 #define SQRT_TABLE_SIZE 256 26 27 WORD32 ixheaacd_sqrt(WORD32 op); 28 29 VOID ixheaacd_fix_mant_exp_add(WORD16 a_m, WORD16 a_e, WORD16 b_m, WORD16 b_e, 30 WORD16 *ptr_sum_mant, WORD16 *ptr_sum_exp); 31 32 WORD32 ixheaacd_fix_mant_div(WORD16 a_m, WORD16 b_m, WORD16 *ptr_result, 33 ixheaacd_misc_tables *pstr_common_tables); 34 35 VOID ixheaacd_fix_mant_exp_sqrt(WORD16 *mant, WORD16 *sqrt_table); 36 37 WORD32 ixheaacd_fix_div_dec(WORD32 divident, WORD32 divisor); 38 39 WORD32 ixheaacd_fix_div_armv7(WORD32 divident, WORD32 divisor); 40 41 VOID ixheaacd_mantisa_mod(WORD32 b_m, WORD32 b_e, WORD32 *ptr_sum_mant, 42 WORD32 *ptr_sum_exp); 43 44 extern VOID ixheaacd_scale_short_vec_left(WORD16 *word16_arr, WORD32 n, 45 WORD16 shift); 46 47 extern VOID ixheaacd_scale_int_vec_left(WORD32 *word32_arr, WORD32 n, 48 WORD16 shift); 49 50 extern VOID ixheaacd_scale_int_vec_right(WORD32 *word32_arr, WORD32 n, 51 WORD16 shift); 52 53 extern VOID ixheaacd_scale_short_vec_right(WORD16 *word16_arr, WORD32 n, 54 WORD16 shift); 55 56 #endif /* IXHEAACD_BASIC_FUNCS_H */ 57