154 lines
5 KiB
C
154 lines
5 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2012 Michael Sevakis
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef DSP_PROC_ENTRY_H
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#define DSP_PROC_ENTRY_H
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#if 0 /* Set to '1' to enable local debug messages */
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#include <debug.h>
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#else
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#undef DEBUGF
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#define DEBUGF(...)
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#endif
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/* Macros to generate the right stuff */
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#ifdef DSP_PROC_DB_CREATE
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struct dsp_proc_db_entry;
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#define DSP_PROC_DB_START
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#define DSP_PROC_DB_ITEM(name) \
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extern const struct dsp_proc_db_entry name##_proc_db_entry;
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#define DSP_PROC_DB_STOP
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/* Create database as externs to be able to build array */
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#include "dsp_proc_database.h"
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#define DSP_PROC_DB_START \
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static struct dsp_proc_db_entry const * const dsp_proc_database[] = {
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#define DSP_PROC_DB_ITEM(name) \
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&name##_proc_db_entry,
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#define DSP_PROC_DB_STOP };
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/* Create database as array */
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#include "dsp_proc_database.h"
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/* Number of effects in database - all available in audio DSP */
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#define DSP_NUM_PROC_STAGES ARRAYLEN(dsp_proc_database)
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/* Number of possible effects for voice DSP */
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#ifdef HAVE_SW_TONE_CONTROLS
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#define DSP_VOICE_NUM_PROC_STAGES 2 /* resample, tone */
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#else
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#define DSP_VOICE_NUM_PROC_STAGES 1 /* resample */
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#endif
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#else /* !DSP_PROC_DB_CREATE */
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#ifdef DEBUG
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#define DSP_PROC_DB_ENTRY(_name, _configure) \
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const struct dsp_proc_db_entry _name##_proc_db_entry = \
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{ .id = DSP_PROC_##_name, .configure = _configure, \
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.name = #_name };
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#else /* !DEBUG */
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#define DSP_PROC_DB_ENTRY(_name, _configure) \
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const struct dsp_proc_db_entry _name##_proc_db_entry = \
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{ .id = DSP_PROC_##_name, .configure = _configure };
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#endif /* DEBUG */
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#endif /* DSP_PROC_DB_CREATE */
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#define DSP_PROC_DB_START \
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enum dsp_proc_ids \
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{ \
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___DSP_PROC_ID_FIRST = -1,
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#define DSP_PROC_DB_ITEM(name) \
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DSP_PROC_##name,
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#define DSP_PROC_DB_STOP };
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/* Create database as enums for use as ids */
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#include "dsp_proc_database.h"
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struct dsp_proc_entry;
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#include "dsp_core.h"
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/* DSP sample transform function prototype */
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typedef void (*dsp_proc_fn_type)(struct dsp_proc_entry *this,
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struct dsp_buffer **buf);
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/**
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* dsp_proc_entry
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* The structure allocated to every stage when enabled.
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*
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* default settings:
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* .data = 0
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* .ip_mask = BIT_N(dsp_proc_db_entry.id)
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* .process[0] = dsp_process_null
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* .process[1] = dsp_format_change_process
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*
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* DSP_PROC_INIT handler just has to change what it needs to change. It may
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* also be modified at any time to implement the stage's demands.
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*/
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struct dsp_proc_entry
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{
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intptr_t data; /* 00h: any value, at beginning for easy asm use */
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uint32_t ip_mask; /* In-place id bit (0 or id bit flag if in-place) */
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dsp_proc_fn_type process[2]; /* Processing normal/format changes */
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};
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/* DSP transform configure function prototype */
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typedef intptr_t (*dsp_proc_config_fn_type)(struct dsp_proc_entry *this,
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struct dsp_config *dsp,
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unsigned int setting,
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intptr_t value);
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/* Enable/disable a processing stage - not to be called during processing
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* by processing code! */
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void dsp_proc_enable(struct dsp_config *dsp, enum dsp_proc_ids id,
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bool enable);
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/* Activate/deactivate processing stage, doesn't affect enabled status
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* thus will not enable anything -
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* may be called during processing to activate/deactivate for format
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* changes */
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void dsp_proc_activate(struct dsp_config *dsp, enum dsp_proc_ids id,
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bool activate);
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/* Is the specified stage active on the DSP? */
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bool dsp_proc_active(struct dsp_config *dsp, enum dsp_proc_ids id);
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/* Call this->process[fmt] according to the rules
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* pass (unsigned)-1 to call function 0 with no restriction */
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bool dsp_proc_call(struct dsp_proc_entry *this, struct dsp_buffer **buf_p,
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unsigned int fmt);
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struct dsp_proc_db_entry
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{
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enum dsp_proc_ids id; /* id of this stage */
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dsp_proc_config_fn_type configure; /* dsp_configure hook */
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#ifdef DEBUG
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const char *name;
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#endif
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};
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#endif /* DSP_PROC_ENTRY_H */
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