| /* |
| * 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 "ScalarArithmetic.h" |
| #include "LVM_Macros.h" |
| |
| /********************************************************************************** |
| FUNCTION LVC_Core_MixSoft_1St_2i_D16C31_WRA |
| ***********************************************************************************/ |
| #ifdef BUILD_FLOAT |
| static LVM_FLOAT ADD2_SAT_FLOAT(LVM_FLOAT a, |
| LVM_FLOAT b, |
| LVM_FLOAT c) |
| { |
| LVM_FLOAT temp; |
| temp = a + b ; |
| if (temp < -1.0f) |
| c = -1.0f; |
| else if (temp > 1.0f) |
| c = 1.0f; |
| else |
| c = temp; |
| return c; |
| } |
| void LVC_Core_MixSoft_1St_2i_D16C31_WRA( LVMixer3_FLOAT_st *ptrInstance1, |
| LVMixer3_FLOAT_st *ptrInstance2, |
| const LVM_FLOAT *src, |
| LVM_FLOAT *dst, |
| LVM_INT16 n) |
| { |
| LVM_INT16 OutLoop; |
| LVM_INT16 InLoop; |
| LVM_INT32 ii; |
| Mix_Private_FLOAT_st *pInstanceL = (Mix_Private_FLOAT_st *)(ptrInstance1->PrivateParams); |
| Mix_Private_FLOAT_st *pInstanceR = (Mix_Private_FLOAT_st *)(ptrInstance2->PrivateParams); |
| |
| LVM_FLOAT DeltaL = pInstanceL->Delta; |
| LVM_FLOAT CurrentL = pInstanceL->Current; |
| LVM_FLOAT TargetL = pInstanceL->Target; |
| |
| LVM_FLOAT DeltaR = pInstanceR->Delta; |
| LVM_FLOAT CurrentR = pInstanceR->Current; |
| LVM_FLOAT TargetR = pInstanceR->Target; |
| |
| LVM_FLOAT Temp = 0; |
| |
| InLoop = (LVM_INT16)(n >> 2); /* Process per 4 samples */ |
| OutLoop = (LVM_INT16)(n - (InLoop << 2)); |
| |
| if (OutLoop) |
| { |
| if(CurrentL < TargetL) |
| { |
| ADD2_SAT_FLOAT(CurrentL, DeltaL, Temp); |
| CurrentL = Temp; |
| if (CurrentL > TargetL) |
| CurrentL = TargetL; |
| } |
| else |
| { |
| CurrentL -= DeltaL; |
| if (CurrentL < TargetL) |
| CurrentL = TargetL; |
| } |
| |
| if(CurrentR < TargetR) |
| { |
| ADD2_SAT_FLOAT(CurrentR, DeltaR, Temp); |
| CurrentR = Temp; |
| if (CurrentR > TargetR) |
| CurrentR = TargetR; |
| } |
| else |
| { |
| CurrentR -= DeltaR; |
| if (CurrentR < TargetR) |
| CurrentR = TargetR; |
| } |
| |
| for (ii = OutLoop * 2; ii != 0; ii -= 2) |
| { |
| *(dst++) = (LVM_FLOAT)(((LVM_FLOAT)*(src++) * (LVM_FLOAT)CurrentL)); |
| *(dst++) = (LVM_FLOAT)(((LVM_FLOAT)*(src++) * (LVM_FLOAT)CurrentR)); |
| } |
| } |
| |
| for (ii = InLoop * 2; ii != 0; ii-=2) |
| { |
| if(CurrentL < TargetL) |
| { |
| ADD2_SAT_FLOAT(CurrentL, DeltaL, Temp); |
| CurrentL = Temp; |
| if (CurrentL > TargetL) |
| CurrentL = TargetL; |
| } |
| else |
| { |
| CurrentL -= DeltaL; |
| if (CurrentL < TargetL) |
| CurrentL = TargetL; |
| } |
| |
| if(CurrentR < TargetR) |
| { |
| ADD2_SAT_FLOAT(CurrentR, DeltaR, Temp); |
| CurrentR = Temp; |
| if (CurrentR > TargetR) |
| CurrentR = TargetR; |
| } |
| else |
| { |
| CurrentR -= DeltaR; |
| if (CurrentR < TargetR) |
| CurrentR = TargetR; |
| } |
| |
| *(dst++) = (LVM_FLOAT)(((LVM_FLOAT)*(src++) * (LVM_FLOAT)CurrentL)); |
| *(dst++) = (LVM_FLOAT)(((LVM_FLOAT)*(src++) * (LVM_FLOAT)CurrentR)); |
| *(dst++) = (LVM_FLOAT)(((LVM_FLOAT)*(src++) * (LVM_FLOAT)CurrentL)); |
| *(dst++) = (LVM_FLOAT)(((LVM_FLOAT)*(src++) * (LVM_FLOAT)CurrentR)); |
| *(dst++) = (LVM_FLOAT)(((LVM_FLOAT)*(src++) * (LVM_FLOAT)CurrentL)); |
| *(dst++) = (LVM_FLOAT)(((LVM_FLOAT)*(src++) * (LVM_FLOAT)CurrentR)); |
| *(dst++) = (LVM_FLOAT)(((LVM_FLOAT)*(src++) * (LVM_FLOAT)CurrentL)); |
| *(dst++) = (LVM_FLOAT)(((LVM_FLOAT)*(src++) * (LVM_FLOAT)CurrentR)); |
| } |
| pInstanceL->Current = CurrentL; |
| pInstanceR->Current = CurrentR; |
| |
| } |
| #ifdef SUPPORT_MC |
| void LVC_Core_MixSoft_1St_MC_float_WRA (Mix_Private_FLOAT_st **ptrInstance, |
| const LVM_FLOAT *src, |
| LVM_FLOAT *dst, |
| LVM_INT16 NrFrames, |
| LVM_INT16 NrChannels) |
| { |
| LVM_INT32 ii, ch; |
| LVM_FLOAT Temp =0.0f; |
| LVM_FLOAT tempCurrent[NrChannels]; |
| for (ch = 0; ch < NrChannels; ch++) |
| { |
| tempCurrent[ch] = ptrInstance[ch]->Current; |
| } |
| for (ii = NrFrames; ii > 0; ii--) |
| { |
| for (ch = 0; ch < NrChannels; ch++) |
| { |
| Mix_Private_FLOAT_st *pInstance = ptrInstance[ch]; |
| const LVM_FLOAT Delta = pInstance->Delta; |
| LVM_FLOAT Current = tempCurrent[ch]; |
| const LVM_FLOAT Target = pInstance->Target; |
| if (Current < Target) |
| { |
| ADD2_SAT_FLOAT(Current, Delta, Temp); |
| Current = Temp; |
| if (Current > Target) |
| Current = Target; |
| } |
| else |
| { |
| Current -= Delta; |
| if (Current < Target) |
| Current = Target; |
| } |
| *dst++ = *src++ * Current; |
| tempCurrent[ch] = Current; |
| } |
| } |
| for (ch = 0; ch < NrChannels; ch++) |
| { |
| ptrInstance[ch]->Current = tempCurrent[ch]; |
| } |
| } |
| #endif |
| #else |
| void LVC_Core_MixSoft_1St_2i_D16C31_WRA( LVMixer3_st *ptrInstance1, |
| LVMixer3_st *ptrInstance2, |
| const LVM_INT16 *src, |
| LVM_INT16 *dst, |
| LVM_INT16 n) |
| { |
| LVM_INT16 OutLoop; |
| LVM_INT16 InLoop; |
| LVM_INT16 CurrentShortL; |
| LVM_INT16 CurrentShortR; |
| LVM_INT32 ii; |
| Mix_Private_st *pInstanceL=(Mix_Private_st *)(ptrInstance1->PrivateParams); |
| Mix_Private_st *pInstanceR=(Mix_Private_st *)(ptrInstance2->PrivateParams); |
| |
| LVM_INT32 DeltaL=pInstanceL->Delta; |
| LVM_INT32 CurrentL=pInstanceL->Current; |
| LVM_INT32 TargetL=pInstanceL->Target; |
| |
| LVM_INT32 DeltaR=pInstanceR->Delta; |
| LVM_INT32 CurrentR=pInstanceR->Current; |
| LVM_INT32 TargetR=pInstanceR->Target; |
| |
| LVM_INT32 Temp; |
| |
| InLoop = (LVM_INT16)(n >> 2); /* Process per 4 samples */ |
| OutLoop = (LVM_INT16)(n - (InLoop << 2)); |
| |
| if (OutLoop) |
| { |
| if(CurrentL<TargetL) |
| { |
| ADD2_SAT_32x32(CurrentL,DeltaL,Temp); /* Q31 + Q31 into Q31*/ |
| CurrentL=Temp; |
| if (CurrentL > TargetL) |
| CurrentL = TargetL; |
| } |
| else |
| { |
| CurrentL -= DeltaL; /* Q31 + Q31 into Q31*/ |
| if (CurrentL < TargetL) |
| CurrentL = TargetL; |
| } |
| |
| if(CurrentR<TargetR) |
| { |
| ADD2_SAT_32x32(CurrentR,DeltaR,Temp); /* Q31 + Q31 into Q31*/ |
| CurrentR=Temp; |
| if (CurrentR > TargetR) |
| CurrentR = TargetR; |
| } |
| else |
| { |
| CurrentR -= DeltaR; /* Q31 + Q31 into Q31*/ |
| if (CurrentR < TargetR) |
| CurrentR = TargetR; |
| } |
| |
| CurrentShortL = (LVM_INT16)(CurrentL>>16); /* From Q31 to Q15*/ |
| CurrentShortR = (LVM_INT16)(CurrentR>>16); /* From Q31 to Q15*/ |
| |
| for (ii = OutLoop*2; ii != 0; ii-=2) |
| { |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShortL)>>15); /* Q15*Q15>>15 into Q15 */ |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShortR)>>15); /* Q15*Q15>>15 into Q15 */ |
| } |
| } |
| |
| for (ii = InLoop*2; ii != 0; ii-=2) |
| { |
| if(CurrentL<TargetL) |
| { |
| ADD2_SAT_32x32(CurrentL,DeltaL,Temp); /* Q31 + Q31 into Q31*/ |
| CurrentL=Temp; |
| if (CurrentL > TargetL) |
| CurrentL = TargetL; |
| } |
| else |
| { |
| CurrentL -= DeltaL; /* Q31 + Q31 into Q31*/ |
| if (CurrentL < TargetL) |
| CurrentL = TargetL; |
| } |
| |
| if(CurrentR<TargetR) |
| { |
| ADD2_SAT_32x32(CurrentR,DeltaR,Temp); /* Q31 + Q31 into Q31*/ |
| CurrentR=Temp; |
| if (CurrentR > TargetR) |
| CurrentR = TargetR; |
| } |
| else |
| { |
| CurrentR -= DeltaR; /* Q31 + Q31 into Q31*/ |
| if (CurrentR < TargetR) |
| CurrentR = TargetR; |
| } |
| |
| CurrentShortL = (LVM_INT16)(CurrentL>>16); /* From Q31 to Q15*/ |
| CurrentShortR = (LVM_INT16)(CurrentR>>16); /* From Q31 to Q15*/ |
| |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShortL)>>15); /* Q15*Q15>>15 into Q15 */ |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShortR)>>15); /* Q15*Q15>>15 into Q15 */ |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShortL)>>15); |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShortR)>>15); |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShortL)>>15); |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShortR)>>15); |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShortL)>>15); |
| *(dst++) = (LVM_INT16)(((LVM_INT32)*(src++) * (LVM_INT32)CurrentShortR)>>15); |
| } |
| pInstanceL->Current=CurrentL; |
| pInstanceR->Current=CurrentR; |
| |
| } |
| #endif |
| /**********************************************************************************/ |
