| /* |
| * Copyright (C) 2004-2010 NXP Software |
| * Copyright (C) 2010 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /********************************************************************************** |
| INCLUDE FILES |
| ***********************************************************************************/ |
| |
| #include "LVC_Mixer_Private.h" |
| #include "LVM_Macros.h" |
| #include "ScalarArithmetic.h" |
| |
| /********************************************************************************** |
| FUNCTION LVCore_MIXSOFT_1ST_D16C31_WRA |
| ***********************************************************************************/ |
| #ifdef BUILD_FLOAT |
| void LVC_Core_MixSoft_1St_D16C31_WRA( LVMixer3_FLOAT_st *ptrInstance, |
| const LVM_FLOAT *src, |
| LVM_FLOAT *dst, |
| LVM_INT16 n) |
| { |
| LVM_INT16 OutLoop; |
| LVM_INT16 InLoop; |
| LVM_INT32 ii; |
| Mix_Private_FLOAT_st *pInstance=(Mix_Private_FLOAT_st *)(ptrInstance->PrivateParams); |
| LVM_FLOAT Delta= (LVM_FLOAT)pInstance->Delta; |
| LVM_FLOAT Current = (LVM_FLOAT)pInstance->Current; |
| LVM_FLOAT Target= (LVM_FLOAT)pInstance->Target; |
| LVM_FLOAT Temp; |
| |
| InLoop = (LVM_INT16)(n >> 2); /* Process per 4 samples */ |
| OutLoop = (LVM_INT16)(n - (InLoop << 2)); |
| |
| if(Current<Target){ |
| if (OutLoop){ |
| |
| Temp = Current + Delta; |
| if (Temp > 1.0f) |
| Temp = 1.0f; |
| else if (Temp < -1.0f) |
| Temp = -1.0f; |
| |
| Current=Temp; |
| if (Current > Target) |
| Current = Target; |
| |
| for (ii = OutLoop; ii != 0; ii--){ |
| *(dst++) = (((LVM_FLOAT)*(src++) * (LVM_FLOAT)Current)); |
| } |
| } |
| |
| for (ii = InLoop; ii != 0; ii--){ |
| |
| Temp = Current + Delta; |
| |
| if (Temp > 1.0f) |
| Temp = 1.0f; |
| else if (Temp < -1.0f) |
| Temp = -1.0f; |
| |
| Current=Temp; |
| if (Current > Target) |
| Current = Target; |
| |
| *(dst++) = (((LVM_FLOAT)*(src++) * Current) ); |
| *(dst++) = (((LVM_FLOAT)*(src++) * Current) ); |
| *(dst++) = (((LVM_FLOAT)*(src++) * Current) ); |
| *(dst++) = (((LVM_FLOAT)*(src++) * Current) ); |
| } |
| } |
| else{ |
| if (OutLoop){ |
| Current -= Delta; |
| if (Current < Target) |
| Current = Target; |
| |
| for (ii = OutLoop; ii != 0; ii--){ |
| *(dst++) = (((LVM_FLOAT)*(src++) * Current)); |
| } |
| } |
| |
| for (ii = InLoop; ii != 0; ii--){ |
| Current -= Delta; |
| if (Current < Target) |
| Current = Target; |
| |
| *(dst++) = (((LVM_FLOAT)*(src++) * Current)); |
| *(dst++) = (((LVM_FLOAT)*(src++) * Current)); |
| *(dst++) = (((LVM_FLOAT)*(src++) * Current)); |
| *(dst++) = (((LVM_FLOAT)*(src++) * Current)); |
| } |
| } |
| pInstance->Current=Current; |
| } |
| #else |
| void LVC_Core_MixSoft_1St_D16C31_WRA( LVMixer3_st *ptrInstance, |
| const LVM_INT16 *src, |
| LVM_INT16 *dst, |
| LVM_INT16 n) |
| { |
| LVM_INT16 OutLoop; |
| LVM_INT16 InLoop; |
| LVM_INT16 CurrentShort; |
| LVM_INT32 ii; |
| Mix_Private_st *pInstance=(Mix_Private_st *)(ptrInstance->PrivateParams); |
| LVM_INT32 Delta=pInstance->Delta; |
| LVM_INT32 Current=pInstance->Current; |
| LVM_INT32 Target=pInstance->Target; |
| LVM_INT32 Temp; |
| |
| InLoop = (LVM_INT16)(n >> 2); /* Process per 4 samples */ |
| OutLoop = (LVM_INT16)(n - (InLoop << 2)); |
| |
| if(Current<Target){ |
| if (OutLoop){ |
| ADD2_SAT_32x32(Current,Delta,Temp); /* Q31 + Q31 into Q31*/ |
| Current=Temp; |
| if (Current > Target) |
| Current = Target; |
| |
| CurrentShort = (LVM_INT16)(Current>>16); /* From Q31 to Q15*/ |
| |
| for (ii = OutLoop; ii != 0; ii--){ |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShort)>>15); /* Q15*Q15>>15 into Q15 */ |
| } |
| } |
| |
| for (ii = InLoop; ii != 0; ii--){ |
| ADD2_SAT_32x32(Current,Delta,Temp); /* Q31 + Q31 into Q31*/ |
| Current=Temp; |
| if (Current > Target) |
| Current = Target; |
| |
| CurrentShort = (LVM_INT16)(Current>>16); /* From Q31 to Q15*/ |
| |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShort)>>15); /* Q15*Q15>>15 into Q15 */ |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShort)>>15); |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShort)>>15); |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShort)>>15); |
| } |
| } |
| else{ |
| if (OutLoop){ |
| Current -= Delta; /* Q31 + Q31 into Q31*/ |
| if (Current < Target) |
| Current = Target; |
| |
| CurrentShort = (LVM_INT16)(Current>>16); /* From Q31 to Q15*/ |
| |
| for (ii = OutLoop; ii != 0; ii--){ |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShort)>>15); /* Q15*Q15>>15 into Q15 */ |
| } |
| } |
| |
| for (ii = InLoop; ii != 0; ii--){ |
| Current -= Delta; /* Q31 + Q31 into Q31*/ |
| if (Current < Target) |
| Current = Target; |
| |
| CurrentShort = (LVM_INT16)(Current>>16); /* From Q31 to Q15*/ |
| |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShort)>>15); /* Q15*Q15>>15 into Q15 */ |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShort)>>15); |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShort)>>15); |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShort)>>15); |
| } |
| } |
| pInstance->Current=Current; |
| } |
| #endif |
| /**********************************************************************************/ |