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
24/**********************************************************************************
25   FUNCTION LVCore_MIXHARD_2ST_D16C31_SAT
26***********************************************************************************/
27#ifdef BUILD_FLOAT
28void LVC_Core_MixHard_2St_D16C31_SAT( LVMixer3_FLOAT_st *ptrInstance1,
29                                    LVMixer3_FLOAT_st         *ptrInstance2,
30                                    const LVM_FLOAT     *src1,
31                                    const LVM_FLOAT     *src2,
32                                          LVM_FLOAT     *dst,
33                                          LVM_INT16     n)
34{
35    LVM_FLOAT  Temp;
36    LVM_INT16 ii;
37    LVM_FLOAT Current1;
38    LVM_FLOAT Current2;
39    Mix_Private_FLOAT_st  *pInstance1 = (Mix_Private_FLOAT_st *)(ptrInstance1->PrivateParams);
40    Mix_Private_FLOAT_st  *pInstance2 = (Mix_Private_FLOAT_st *)(ptrInstance2->PrivateParams);
41
42
43    Current1 = (pInstance1->Current);
44    Current2 = (pInstance2->Current);
45
46    for (ii = n; ii != 0; ii--){
47        Temp = (((LVM_FLOAT)*(src1++) * (LVM_FLOAT)Current1)) +
48               (((LVM_FLOAT)*(src2++) * (LVM_FLOAT)Current2));
49        if (Temp > 1.0f)
50            *dst++ = 1.0f;
51        else if (Temp < -1.0f)
52            *dst++ = -1.0f;
53        else
54            *dst++ = Temp;
55    }
56}
57#else
58void LVC_Core_MixHard_2St_D16C31_SAT( LVMixer3_st *ptrInstance1,
59                                    LVMixer3_st         *ptrInstance2,
60                                    const LVM_INT16     *src1,
61                                    const LVM_INT16     *src2,
62                                          LVM_INT16     *dst,
63                                          LVM_INT16     n)
64{
65    LVM_INT32  Temp;
66    LVM_INT16 ii;
67    LVM_INT16 Current1Short;
68    LVM_INT16 Current2Short;
69    Mix_Private_st  *pInstance1=(Mix_Private_st *)(ptrInstance1->PrivateParams);
70    Mix_Private_st  *pInstance2=(Mix_Private_st *)(ptrInstance2->PrivateParams);
71
72
73    Current1Short = (LVM_INT16)(pInstance1->Current >> 16);
74    Current2Short = (LVM_INT16)(pInstance2->Current >> 16);
75
76    for (ii = n; ii != 0; ii--){
77        Temp = (((LVM_INT32)*(src1++) * (LVM_INT32)Current1Short)>>15) +
78               (((LVM_INT32)*(src2++) * (LVM_INT32)Current2Short)>>15);
79        if (Temp > 0x00007FFF)
80            *dst++ = 0x7FFF;
81        else if (Temp < -0x00008000)
82            *dst++ = - 0x8000;
83        else
84            *dst++ = (LVM_INT16)Temp;
85    }
86}
87#endif
88/**********************************************************************************/
89