1 /* 2 * Copyright (C) 2004-2010 NXP Software 3 * Copyright (C) 2010 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 /********************************************************************************** 19 INCLUDE FILES 20 ***********************************************************************************/ 21 22 #include "LVC_Mixer_Private.h" 23 #include "LVM_Macros.h" 24 #include "ScalarArithmetic.h" 25 26 27 /********************************************************************************** 28 FUNCTION LVC_Core_MixHard_1St_2i_D16C31_SAT 29 ***********************************************************************************/ 30 31 void LVC_Core_MixHard_1St_2i_D16C31_SAT( LVMixer3_st *ptrInstance1, 32 LVMixer3_st *ptrInstance2, 33 const LVM_INT16 *src, 34 LVM_INT16 *dst, 35 LVM_INT16 n) 36 { 37 LVM_INT32 Temp; 38 LVM_INT16 ii; 39 LVM_INT16 Current1Short; 40 LVM_INT16 Current2Short; 41 Mix_Private_st *pInstance1=(Mix_Private_st *)(ptrInstance1->PrivateParams); 42 Mix_Private_st *pInstance2=(Mix_Private_st *)(ptrInstance2->PrivateParams); 43 44 45 Current1Short = (LVM_INT16)(pInstance1->Current >> 16); 46 Current2Short = (LVM_INT16)(pInstance2->Current >> 16); 47 48 for (ii = n; ii != 0; ii--) 49 { 50 Temp = ((LVM_INT32)*(src++) * (LVM_INT32)Current1Short)>>15; 51 if (Temp > 0x00007FFF) 52 *dst++ = 0x7FFF; 53 else if (Temp < -0x00008000) 54 *dst++ = - 0x8000; 55 else 56 *dst++ = (LVM_INT16)Temp; 57 58 Temp = ((LVM_INT32)*(src++) * (LVM_INT32)Current2Short)>>15; 59 if (Temp > 0x00007FFF) 60 *dst++ = 0x7FFF; 61 else if (Temp < -0x00008000) 62 *dst++ = - 0x8000; 63 else 64 *dst++ = (LVM_INT16)Temp; 65 } 66 67 68 } 69 /**********************************************************************************/ 70
