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 "Mixer_private.h"
23 #include "LVM_Macros.h"
24
25 /**********************************************************************************
26 FUNCTION CORE_MIXHARD_2ST_D32C31_SAT
27 ***********************************************************************************/
Core_MixHard_2St_D32C31_SAT(Mix_2St_Cll_FLOAT_t * pInstance,const LVM_FLOAT * src1,const LVM_FLOAT * src2,LVM_FLOAT * dst,LVM_INT16 n)28 void Core_MixHard_2St_D32C31_SAT( Mix_2St_Cll_FLOAT_t *pInstance,
29 const LVM_FLOAT *src1,
30 const LVM_FLOAT *src2,
31 LVM_FLOAT *dst,
32 LVM_INT16 n)
33 {
34 LVM_FLOAT Temp1,Temp2,Temp3;
35 LVM_INT16 ii;
36 LVM_FLOAT Current1Short;
37 LVM_FLOAT Current2Short;
38
39 Current1Short = (pInstance->Current1);
40 Current2Short = (pInstance->Current2);
41
42 for (ii = n; ii != 0; ii--){
43 Temp1 = *src1++;
44 Temp3 = Temp1 * Current1Short;
45 Temp2 = *src2++;
46 Temp1 = Temp2 * Current2Short;
47 Temp2 = (Temp1 / 2.0f) + (Temp3 / 2.0f);
48 if (Temp2 > 0.5f)
49 Temp2 = 1.0f;
50 else if (Temp2 < -0.5f )
51 Temp2 = -1.0f;
52 else
53 Temp2 = (Temp2 * 2);
54 *dst++ = Temp2;
55 }
56 }
57 /**********************************************************************************/
58