diff options
Diffstat (limited to 'media/libeffects/lvm/lib/Bass/src/LVDBE_Init.c')
| -rwxr-xr-x | media/libeffects/lvm/lib/Bass/src/LVDBE_Init.c | 267 |
1 files changed, 267 insertions, 0 deletions
diff --git a/media/libeffects/lvm/lib/Bass/src/LVDBE_Init.c b/media/libeffects/lvm/lib/Bass/src/LVDBE_Init.c new file mode 100755 index 0000000..75869c7 --- /dev/null +++ b/media/libeffects/lvm/lib/Bass/src/LVDBE_Init.c @@ -0,0 +1,267 @@ +/* + * 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. + */ + +/**************************************************************************************** + + $Author: nxp007753 $ + $Revision: 1081 $ + $Date: 2010-07-05 11:48:44 +0200 (Mon, 05 Jul 2010) $ + +*****************************************************************************************/ + +/****************************************************************************************/ +/* */ +/* Includes */ +/* */ +/****************************************************************************************/ + +#include "LVDBE.h" +#include "LVDBE_Private.h" + +/****************************************************************************************/ +/* */ +/* FUNCTION: LVDBE_Memory */ +/* */ +/* DESCRIPTION: */ +/* This function is used for memory allocation and free. It can be called in */ +/* two ways: */ +/* */ +/* hInstance = NULL Returns the memory requirements */ +/* hInstance = Instance handle Returns the memory requirements and */ +/* allocated base addresses for the instance */ +/* */ +/* When this function is called for memory allocation (hInstance=NULL) the memory */ +/* base address pointers are NULL on return. */ +/* */ +/* When the function is called for free (hInstance = Instance Handle) the memory */ +/* table returns the allocated memory and base addresses used during initialisation. */ +/* */ +/* PARAMETERS: */ +/* hInstance Instance Handle */ +/* pMemoryTable Pointer to an empty memory definition table */ +/* pCapabilities Pointer to the instance capabilities */ +/* */ +/* RETURNS: */ +/* LVDBE_SUCCESS Succeeded */ +/* */ +/* NOTES: */ +/* 1. This function may be interrupted by the LVDBE_Process function */ +/* */ +/****************************************************************************************/ + +LVDBE_ReturnStatus_en LVDBE_Memory(LVDBE_Handle_t hInstance, + LVDBE_MemTab_t *pMemoryTable, + LVDBE_Capabilities_t *pCapabilities) +{ + + LVM_UINT32 ScratchSize; + LVDBE_Instance_t *pInstance = (LVDBE_Instance_t *)hInstance; + + + /* + * Fill in the memory table + */ + if (hInstance == LVM_NULL) + { + /* + * Instance memory + */ + pMemoryTable->Region[LVDBE_MEMREGION_INSTANCE].Size = sizeof(LVDBE_Instance_t); + pMemoryTable->Region[LVDBE_MEMREGION_INSTANCE].Alignment = LVDBE_INSTANCE_ALIGN; + pMemoryTable->Region[LVDBE_MEMREGION_INSTANCE].Type = LVDBE_PERSISTENT; + pMemoryTable->Region[LVDBE_MEMREGION_INSTANCE].pBaseAddress = LVM_NULL; + + /* + * Data memory + */ + pMemoryTable->Region[LVDBE_MEMREGION_PERSISTENT_DATA].Size = sizeof(LVDBE_Data_t); + pMemoryTable->Region[LVDBE_MEMREGION_PERSISTENT_DATA].Alignment = LVDBE_PERSISTENT_DATA_ALIGN; + pMemoryTable->Region[LVDBE_MEMREGION_PERSISTENT_DATA].Type = LVDBE_PERSISTENT_DATA; + pMemoryTable->Region[LVDBE_MEMREGION_PERSISTENT_DATA].pBaseAddress = LVM_NULL; + + /* + * Coef memory + */ + pMemoryTable->Region[LVDBE_MEMREGION_PERSISTENT_COEF].Size = sizeof(LVDBE_Coef_t); + pMemoryTable->Region[LVDBE_MEMREGION_PERSISTENT_COEF].Alignment = LVDBE_PERSISTENT_COEF_ALIGN; + pMemoryTable->Region[LVDBE_MEMREGION_PERSISTENT_COEF].Type = LVDBE_PERSISTENT_COEF; + pMemoryTable->Region[LVDBE_MEMREGION_PERSISTENT_COEF].pBaseAddress = LVM_NULL; + + /* + * Scratch memory + */ + ScratchSize = (LVM_UINT32)(LVDBE_SCRATCHBUFFERS_INPLACE*sizeof(LVM_INT16)*pCapabilities->MaxBlockSize); + pMemoryTable->Region[LVDBE_MEMREGION_SCRATCH].Size = ScratchSize; + pMemoryTable->Region[LVDBE_MEMREGION_SCRATCH].Alignment = LVDBE_SCRATCH_ALIGN; + pMemoryTable->Region[LVDBE_MEMREGION_SCRATCH].Type = LVDBE_SCRATCH; + pMemoryTable->Region[LVDBE_MEMREGION_SCRATCH].pBaseAddress = LVM_NULL; + } + else + { + /* Read back memory allocation table */ + *pMemoryTable = pInstance->MemoryTable; + } + + return(LVDBE_SUCCESS); +} + + +/****************************************************************************************/ +/* */ +/* FUNCTION: LVDBE_Init */ +/* */ +/* DESCRIPTION: */ +/* Create and initialisation function for the Dynamic Bass Enhancement module */ +/* */ +/* This function can be used to create an algorithm instance by calling with */ +/* hInstance set to NULL. In this case the algorithm returns the new instance */ +/* handle. */ +/* */ +/* This function can be used to force a full re-initialisation of the algorithm */ +/* by calling with hInstance = Instance Handle. In this case the memory table */ +/* should be correct for the instance, this can be ensured by calling the function */ +/* DBE_Memory before calling this function. */ +/* */ +/* PARAMETERS: */ +/* hInstance Instance handle */ +/* pMemoryTable Pointer to the memory definition table */ +/* pCapabilities Pointer to the instance capabilities */ +/* */ +/* RETURNS: */ +/* LVDBE_SUCCESS Initialisation succeeded */ +/* LVDBE_ALIGNMENTERROR Instance or scratch memory on incorrect alignment */ +/* LVDBE_NULLADDRESS Instance or scratch memory has a NULL pointer */ +/* */ +/* NOTES: */ +/* 1. The instance handle is the pointer to the base address of the first memory */ +/* region. */ +/* 2. This function must not be interrupted by the LVDBE_Process function */ +/* */ +/****************************************************************************************/ + +LVDBE_ReturnStatus_en LVDBE_Init(LVDBE_Handle_t *phInstance, + LVDBE_MemTab_t *pMemoryTable, + LVDBE_Capabilities_t *pCapabilities) +{ + + LVDBE_Instance_t *pInstance; + LVMixer3_1St_st *pMixer_Instance; + LVM_INT16 i; + LVM_INT32 MixGain; + + + /* + * Set the instance handle if not already initialised + */ + if (*phInstance == LVM_NULL) + { + *phInstance = (LVDBE_Handle_t)pMemoryTable->Region[LVDBE_MEMREGION_INSTANCE].pBaseAddress; + } + pInstance =(LVDBE_Instance_t *)*phInstance; + + + /* + * Check the memory table for NULL pointers and incorrectly aligned data + */ + for (i=0; i<LVDBE_NR_MEMORY_REGIONS; i++) + { + if (pMemoryTable->Region[i].Size!=0) + { + if (pMemoryTable->Region[i].pBaseAddress==LVM_NULL) + { + return(LVDBE_NULLADDRESS); + } + if (((LVM_UINT32)pMemoryTable->Region[i].pBaseAddress % pMemoryTable->Region[i].Alignment)!=0){ + return(LVDBE_ALIGNMENTERROR); + } + } + } + + + /* + * Save the memory table in the instance structure + */ + pInstance->Capabilities = *pCapabilities; + + + /* + * Save the memory table in the instance structure + */ + pInstance->MemoryTable = *pMemoryTable; + + + /* + * Set the default instance parameters + */ + pInstance->Params.CentreFrequency = LVDBE_CENTRE_55HZ; + pInstance->Params.EffectLevel = 0; + pInstance->Params.HeadroomdB = 0; + pInstance->Params.HPFSelect = LVDBE_HPF_OFF; + pInstance->Params.OperatingMode = LVDBE_OFF; + pInstance->Params.SampleRate = LVDBE_FS_8000; + pInstance->Params.VolumeControl = LVDBE_VOLUME_OFF; + pInstance->Params.VolumedB = 0; + + + /* + * Set pointer to data and coef memory + */ + pInstance->pData = pMemoryTable->Region[LVDBE_MEMREGION_PERSISTENT_DATA].pBaseAddress; + pInstance->pCoef = pMemoryTable->Region[LVDBE_MEMREGION_PERSISTENT_COEF].pBaseAddress; + + + /* + * Initialise the filters + */ + LVDBE_SetFilters(pInstance, /* Set the filter taps and coefficients */ + &pInstance->Params); + + + /* + * Initialise the AGC + */ + LVDBE_SetAGC(pInstance, /* Set the AGC gain */ + &pInstance->Params); + pInstance->pData->AGCInstance.AGC_Gain = pInstance->pData->AGCInstance.AGC_MaxGain; /* Default to the bass boost setting */ + + + /* + * Initialise the volume + */ + LVDBE_SetVolume(pInstance, /* Set the Volume */ + &pInstance->Params); + + pInstance->pData->AGCInstance.Volume = pInstance->pData->AGCInstance.Target; /* Initialise as the target */ + + pMixer_Instance = &pInstance->pData->BypassVolume; + MixGain = LVC_Mixer_GetTarget(&pMixer_Instance->MixerStream[0]); + LVC_Mixer_Init(&pMixer_Instance->MixerStream[0],MixGain,MixGain); + + /* Configure the mixer process path */ + pMixer_Instance->MixerStream[0].CallbackParam = 0; + pMixer_Instance->MixerStream[0].pCallbackHandle = LVM_NULL; + pMixer_Instance->MixerStream[0].pCallBack = LVM_NULL; + pMixer_Instance->MixerStream[0].CallbackSet = 0; + + /* + * Initialise the clicks minimisation variable + */ + pInstance->bTransitionOnToOff = LVM_FALSE; + + return(LVDBE_SUCCESS); +} + |