111 lines
3.8 KiB
C
111 lines
3.8 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) 2002 by Philipp Pertermann
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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 __PEAKMETER_H__
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#define __PEAKMETER_H__
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#define PEAK_METER_FPS 20
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#define MAX_PEAK 0x8000
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/*#define PM_DEBUG */
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#ifdef PM_DEBUG
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extern bool peak_meter_histogram(void);
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#endif
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extern int pm_get_clipcount(void);
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extern void pm_reset_clipcount(void);
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extern void pm_activate_clipcount(bool active);
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extern void peak_meter_enable(bool enable);
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/* sets *left and *right to the current *unscaled* values */
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extern void peak_meter_current_vals(int *left, int *right);
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extern void peak_meter_playback(bool playback);
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extern int peak_meter_draw_get_btn(int action_context, int x[], int y[],
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int height[], int nb_screens,
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struct viewport vps[]);
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extern void peak_meter_set_clip_hold(int time);
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extern void peak_meter_peek(void);
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extern void peak_meter_init_range( bool dbfs, int range_min, int range_max);
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extern void peak_meter_init_times(int release, int hold_ms, int clip_hold_sec);
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#ifdef HAVE_AGC
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extern void peak_meter_get_peakhold(int *peak_left, int *peak_right);
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#endif
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extern int peak_meter_get_min(void);
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extern int peak_meter_get_max(void);
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extern void peak_meter_set_use_dbfs(bool use);
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extern bool peak_meter_get_use_dbfs(void);
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extern int peak_meter_db2sample(int db);
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extern unsigned short peak_meter_scale_value(unsigned short val, int meterwidth);
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#ifdef HAVE_HISTOGRAM
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extern void histogram_init(void);
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extern void histogram_draw(int x1, int x2, int y1, int y2, int width, int height);
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#endif
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/* valid values for trigger_status */
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#define TRIG_OFF 0x00
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#define TRIG_READY 0x01
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#define TRIG_STEADY 0x02
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#define TRIG_GO 0x03
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#define TRIG_POSTREC 0x04
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#define TRIG_RETRIG 0x05
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#define TRIG_CONTINUE 0x06
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extern void peak_meter_define_trigger(
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int start_threshold,
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long start_duration,
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long start_dropout,
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int stop_threshold,
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long stop_hold_time,
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long restart_gap
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);
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extern void peak_meter_trigger(bool on);
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extern int peak_meter_trigger_status(void);
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extern void peak_meter_set_trigger_listener(void (*listener)(int status));
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#define TRIG_HEIGHT 8
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extern void peak_meter_draw_trig(int x[], int y[], int trig_width[],
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int nb_screens);
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#define DB_SCALE_SRC_VALUES_SIZE 12
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struct meter_scales{
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/* buffered peak values */
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int pm_peak_left;
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int pm_peak_right;
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/* if db_scale_valid is false the content of
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db_scale_lcd_coord needs recalculation */
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bool db_scale_valid;
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/* contains the lcd x coordinates of the magical
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scale values in db_scale_src_values */
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int db_scale_lcd_coord[DB_SCALE_SRC_VALUES_SIZE];
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int last_left;
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int last_right;
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/* peak hold timeouts */
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long pm_peak_timeout_l;
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long pm_peak_timeout_r;
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};
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extern void peak_meter_screen(struct screen *display, int x, int y, int height);
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#endif /* __PEAKMETER_H__ */
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