diff options
Diffstat (limited to 'media/libeffects/lvm/lib/Common/src/MixInSoft_D32C31_SAT.c')
| -rwxr-xr-x | media/libeffects/lvm/lib/Common/src/MixInSoft_D32C31_SAT.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/media/libeffects/lvm/lib/Common/src/MixInSoft_D32C31_SAT.c b/media/libeffects/lvm/lib/Common/src/MixInSoft_D32C31_SAT.c new file mode 100755 index 0000000..36de6c1 --- /dev/null +++ b/media/libeffects/lvm/lib/Common/src/MixInSoft_D32C31_SAT.c @@ -0,0 +1,104 @@ +/* + * 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. + */ + +/************************************************************************/ +/* */ +/* Project:: */ +/* $Author: beq07716 $*/ +/* $Revision: 1000 $*/ +/* $Date: 2010-06-28 13:08:20 +0200 (Mon, 28 Jun 2010) $*/ +/* */ +/************************************************************************/ + +/********************************************************************************** + INCLUDE FILES +***********************************************************************************/ + +#include "Mixer_private.h" +#include "VectorArithmetic.h" + +/********************************************************************************** + DEFINITIONS +***********************************************************************************/ + +#define TRUE 1 +#define FALSE 0 + +/********************************************************************************** + FUNCTION MIXINSOFT_D32C31_SAT +***********************************************************************************/ + +void MixInSoft_D32C31_SAT( Mix_1St_Cll_t *pInstance, + const LVM_INT32 *src, + LVM_INT32 *dst, + LVM_INT16 n) +{ + char HardMixing = TRUE; + + if(n<=0) return; + + /****************************************************************************** + SOFT MIXING + *******************************************************************************/ + if (pInstance->Current != pInstance->Target) + { + if(pInstance->Alpha == 0){ + pInstance->Current = pInstance->Target; + }else if ((pInstance->Current-pInstance->Target <POINT_ZERO_ONE_DB)&& + (pInstance->Current-pInstance->Target > -POINT_ZERO_ONE_DB)){ + pInstance->Current = pInstance->Target; /* Difference is not significant anymore. Make them equal. */ + }else{ + /* Soft mixing has to be applied */ + HardMixing = FALSE; + Core_MixInSoft_D32C31_SAT( pInstance, src, dst, n); + } + } + + /****************************************************************************** + HARD MIXING + *******************************************************************************/ + + if (HardMixing){ + if (pInstance->Target != 0){ /* Nothing to do in case Target = 0 */ + if ((pInstance->Target>>16) == 0x7FFF) + Add2_Sat_32x32( src, dst, n ); + else{ + Core_MixInSoft_D32C31_SAT( pInstance, src, dst, n); + pInstance->Current = pInstance->Target; /* In case the core function would have changed the Current value */ + } + } + } + + /****************************************************************************** + CALL BACK + *******************************************************************************/ + /* Call back before the hard mixing, because in this case, hard mixing makes + use of the core soft mix function which can change the Current value! */ + + if (pInstance->CallbackSet){ + if ((pInstance->Current-pInstance->Target <POINT_ZERO_ONE_DB)&& + (pInstance->Current-pInstance->Target > -POINT_ZERO_ONE_DB)){ + pInstance->Current = pInstance->Target; /* Difference is not significant anymore. Make them equal. */ + pInstance->CallbackSet = FALSE; + if (pInstance->pCallBack != 0){ + (*pInstance->pCallBack) ( pInstance->pCallbackHandle, pInstance->pGeneralPurpose,pInstance->CallbackParam ); + } + } + } +} + +/**********************************************************************************/ |