FreeCalypso > hg > fc-tourmaline
view src/ui/bmi/mmiBlkResources.h @ 275:79cfefc1e2b4
audio mode load: gracefully handle mode files of wrong AEC version
Unfortunately our change of enabling L1_NEW_AEC (which is necessary
in order to bring our Calypso ARM fw into match with the underlying
DSP reality) brings along a change in the audio mode file binary
format and file size - all those new tunable AEC parameters do need
to be stored somewhere, after all. But we already have existing
mode files in the old format, and setting AEC config to garbage when
loading old audio modes (which is what would happen without the
present change) is not an appealing proposition.
The solution implemented in the present change is as follows: the
audio mode loading code checks the file size, and if it differs
from the active version of T_AUDIO_MODE, the T_AUDIO_AEC_CFG structure
is cleared - set to the default (disabled AEC) for the compiled type
of AEC. We got lucky in that this varying T_AUDIO_AEC_CFG structure
sits at the end of T_AUDIO_MODE!
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 30 Jul 2021 02:55:48 +0000 |
| parents | 8142e6773a49 |
| children |
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#ifndef _MMI_BlkResources_H_ #define _MMI_BlkResources_H_ #define ALLOC_MEMORY mfwAlloc #define FREE_MEMORY mfwFree /******************************************************************************* CONDAT (UK) ******************************************************************************** This software product is the property of Condat (UK) Ltd and may not be disclosed to any third party without the express permission of the owner. ******************************************************************************** $Project name: Basic MMI $Project code: BMI (6349) $Module: PhoneBook $File: MmiBlkResources.h $Revision: 1.0 $Author: Condat(UK) $Date: 25/10/00 ******************************************************************************** Description: The block resource manager handles a list of blocks of information, passing back pointers to the block of data on request. It provides a mechanism for mapping identifiers to strings, bitmaps, melodies or any other block of information. ******************************************************************************** $History: MmiBlkResources.h 25/10/00 Original Condat(UK) BMI version. $End *******************************************************************************/ /* Define the prototypes for the basic routines */ typedef void *tBlkHandle; typedef long int tBlkId; /* The initialisation routine must be called as part of the startup phase of the system, it will allocate working space for the block handler if required, and will initialise any structures required to maintain the correct operation of the functions. This routine must be called prior to invocation of any other block resource function */ tBlkHandle mmibr_Initialise( tBlkHandle BlkBase, int NumEntries ); /* The shutdown function can be called to free any allocations set up by the Initialise routine. In a running system this is unlikely to be called unless a catastrophic error has occurred and the system needs to be restarted. */ void mmibr_ShutDown( tBlkHandle *BlkRsrc ); /* We will adopt a mechanism where each block of data being provided will need to be returned to the block resource manager when it is no longer being used, this will provide an orthogonal approach when dealing with data coming from either ROM or dynamically allocated memory */ tBlkHandle mmibr_Fetch( tBlkHandle BlkRsrc, tBlkId Id ); /* Added to remove warning Aug - 11 */ EXTERN U8 *mfwAlloc (U32 size); /* End - Remove warning */ /******************************************************************************* End of File *******************************************************************************/ #endif