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rockbox/firmware/sound.c
Aidan MacDonald 54b8e9131c Revert "sound: add sound_numdecimals() to round out the sound setting query API" 
There is already a sound_numdecimals() function, according to Git
it's been around since 2005. No need to add another one :).

This reverts commit 92a0ab8789.

Change-Id: I533ebf1763dd7a27346842982493d4550f05ad7c
2021-04-09 10:52:02 +00:00

648 lines
17 KiB
C
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2005 by Linus Nielsen Feltzing
* Copyright (C) 2007 by Christian Gmeiner
* Copyright (C) 2013 by Michael Sevakis
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
/* Indicate it's the sound.c file which affects compilation of audiohw.h */
#define AUDIOHW_IS_SOUND_C
#include "config.h"
#include "system.h"
#include "sound.h"
#ifndef BOOTLOADER
#include "settings.h" /* sound_current */
#endif
#ifdef HAVE_SW_VOLUME_CONTROL
#include "pcm_sw_volume.h"
#endif /* HAVE_SW_VOLUME_CONTROL */
/* Define sound_setting_entries table */
#define AUDIOHW_SOUND_SETTINGS_ENTRIES
#include "audiohw_settings.h"
/* Implements sound_val2phys */
#define AUDIOHW_SOUND_SETTINGS_VAL2PHYS
#include "audiohw_settings.h"
/* Returns current sound settings from global_settings */
#define SOUND_CUR_SET(name, var) \
case SOUND_##name: return var;
extern bool audio_is_initialized;
static const struct sound_setting_entry * get_setting_entry(int setting)
{
static const struct sound_settings_info default_info =
{ "", 0, 0, 0, 0, 0 };
static const struct sound_setting_entry default_entry =
{ &default_info, NULL };
if ((unsigned)setting >= ARRAYLEN(sound_setting_entries))
return &default_entry;
const struct sound_setting_entry *e = &sound_setting_entries[setting];
return e->info ? e : &default_entry; /* setting valid but not in table? */
}
static const struct sound_settings_info * get_settings_info(int setting)
{
return get_setting_entry(setting)->info;
}
const char * sound_unit(int setting)
{
return get_settings_info(setting)->unit;
}
int sound_numdecimals(int setting)
{
return get_settings_info(setting)->numdecimals;
}
int sound_steps(int setting)
{
return get_settings_info(setting)->steps;
}
int sound_min(int setting)
{
return get_settings_info(setting)->minval;
}
int sound_max(int setting)
{
return get_settings_info(setting)->maxval;
}
int sound_default(int setting)
{
return get_settings_info(setting)->defaultval;
}
sound_set_type * sound_get_fn(int setting)
{
return get_setting_entry(setting)->function;
}
void sound_set(int setting, int value)
{
sound_set_type *sound_set_val = sound_get_fn(setting);
if (sound_set_val)
sound_set_val(value);
}
int sound_current(int setting)
{
switch(setting)
{
#ifndef BOOTLOADER
#ifndef PLATFORM_HAS_VOLUME_CHANGE
SOUND_CUR_SET(VOLUME, global_settings.volume)
#endif
#if defined(AUDIOHW_HAVE_BASS)
SOUND_CUR_SET(BASS, global_settings.bass)
#endif
#if defined(AUDIOHW_HAVE_TREBLE)
SOUND_CUR_SET(TREBLE, global_settings.treble)
#endif
SOUND_CUR_SET(BALANCE, global_settings.balance)
SOUND_CUR_SET(CHANNELS, global_settings.channel_config)
SOUND_CUR_SET(STEREO_WIDTH, global_settings.stereo_width)
#if defined(AUDIOHW_HAVE_BASS_CUTOFF)
SOUND_CUR_SET(BASS_CUTOFF, global_settings.bass_cutoff)
#endif
#if defined(AUDIOHW_HAVE_TREBLE_CUTOFF)
SOUND_CUR_SET(TREBLE_CUTOFF, global_settings.treble_cutoff)
#endif
#if defined(AUDIOHW_HAVE_DEPTH_3D)
SOUND_CUR_SET(DEPTH_3D, global_settings.depth_3d)
#endif
#if defined(AUDIOHW_HAVE_FILTER_ROLL_OFF)
SOUND_CUR_SET(FILTER_ROLL_OFF, global_settings.roll_off)
#endif
#if defined(AUDIOHW_HAVE_POWER_MODE)
SOUND_CUR_SET(POWER_MODE, global_settings.power_mode)
#endif
#if 0 /*WRONG -- these need to index the hw_eq_bands[AUDIOHW_EQ_BAND_NUM] struct*/
/* Hardware EQ tone controls */
#if defined(AUDIOHW_HAVE_EQ)
SOUND_CUR_SET(EQ_BAND1_GAIN, global_settings.hw_eq_band1_gain)
#if defined(AUDIOHW_HAVE_EQ_BAND1_FREQUENCY)
SOUND_CUR_SET(EQ_BAND1_FREQUENCY, global_settings.hw_eq_band1_frequency)
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND2)
SOUND_CUR_SET(EQ_BAND2_GAIN, global_settings.hw_eq_band2_gain)
#if defined(AUDIOHW_HAVE_EQ_BAND2_FREQUENCY)
SOUND_CUR_SET(EQ_BAND2_FREQUENCY, global_settings.hw_eq_band2_frequency)
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND2_WIDTH)
SOUND_CUR_SET(EQ_BAND2_WIDTH, global_settings.hw_eq_band2_width)
#endif
#endif /* AUDIOHW_HAVE_EQ_BAND2 */
#if defined(AUDIOHW_HAVE_EQ_BAND3)
SOUND_CUR_SET(EQ_BAND3_GAIN, global_settings.hw_eq_band3_gain)
#if defined(AUDIOHW_HAVE_EQ_BAND3_FREQUENCY)
SOUND_CUR_SET(EQ_BAND3_FREQUENCY, global_settings.hw_eq_band3_frequency)
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND3_WIDTH)
SOUND_CUR_SET(EQ_BAND3_WIDTH, global_settings.hw_eq_band3_width)
#endif
#endif /* AUDIOHW_HAVE_EQ_BAND3 */
#if defined(AUDIOHW_HAVE_EQ_BAND4)
SOUND_CUR_SET(EQ_BAND4_GAIN, global_settings.hw_eq_band4_gain)
#if defined(AUDIOHW_HAVE_EQ_BAND4_FREQUENCY)
SOUND_CUR_SET(EQ_BAND4_FREQUENCY, global_settings.hw_eq_band4_frequency)
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND4_WIDTH)
SOUND_CUR_SET(EQ_BAND4_WIDTH, global_settings.hw_eq_band4_width)
#endif
#endif /* AUDIOHW_HAVE_EQ_BAND4 */
#if defined(AUDIOHW_HAVE_EQ_BAND5)
SOUND_CUR_SET(EQ_BAND5_GAIN, global_settings.hw_eq_band5_gain)
#if defined(AUDIOHW_HAVE_EQ_BAND5_FREQUENCY)
SOUND_CUR_SET(EQ_BAND5_FREQUENCY, global_settings.hw_eq_band5_frequency)
#endif
#endif /* AUDIOHW_HAVE_EQ_BAND5 */
#endif /* AUDIOHW_HAVE_EQ */
#endif /*IF 0*/
#endif /*ndef BOOTLOADER*/
#ifdef INT_MIN
default:
return INT_MIN;
#else
default:
return -32768;
#endif
} /* switch(setting) */
}/* sound_current */
#if !defined(AUDIOHW_HAVE_CLIPPING)
/*
* The prescaler compensates for any kind of boosts, to prevent clipping.
*
* It's basically just a measure to make sure that audio does not clip during
* tone controls processing, like if i want to boost bass 12 dB, i can decrease
* the audio amplitude by -12 dB before processing, then increase master gain
* by 12 dB after processing.
*/
/* Return the sound value scaled to centibels (tenth-decibels) */
static int sound_value_to_cb(int setting, int value)
{
int shift = 1 - sound_numdecimals(setting);
if (shift < 0) do { value /= 10; } while (++shift);
if (shift > 0) do { value *= 10; } while (--shift);
return value;
}
static struct
{
int volume; /* tenth dB */
int balance; /* percent */
#if defined(AUDIOHW_HAVE_BASS)
int bass; /* tenth dB */
#endif
#if defined(AUDIOHW_HAVE_TREBLE)
int treble; /* tenth dB */
#endif
#if defined(AUDIOHW_HAVE_EQ)
int eq_gain[AUDIOHW_EQ_BAND_NUM]; /* tenth dB */
#endif
} sound_prescaler;
#if defined(AUDIOHW_HAVE_BASS) || defined (AUDIOHW_HAVE_TREBLE) \
|| defined(AUDIOHW_HAVE_EQ)
#define TONE_PRESCALER
#endif
static void set_prescaled_volume(void)
{
#if defined(TONE_PRESCALER) || !defined(AUDIOHW_HAVE_MONO_VOLUME)
const int minvol = sound_value_to_cb(SOUND_VOLUME, sound_min(SOUND_VOLUME));
#endif
int volume = sound_prescaler.volume;
#if defined(TONE_PRESCALER)
int prescale = 0;
/* Note: Having Tone + EQ isn't prohibited */
#if defined(AUDIOHW_HAVE_BASS) && defined(AUDIOHW_HAVE_TREBLE)
prescale = MAX(sound_prescaler.bass, sound_prescaler.treble);
#endif
#if defined(AUDIOHW_HAVE_EQ)
for (int i = 0; i < AUDIOHW_EQ_BAND_NUM; i++)
prescale = MAX(sound_prescaler.eq_gain[i], prescale);
#endif
if (prescale < 0)
prescale = 0; /* no need to prescale if we don't boost
bass, treble or eq band */
/* Gain up the analog volume to compensate the prescale gain reduction,
* but if this would push the volume over the top, reduce prescaling
* instead (might cause clipping). */
const int maxvol = sound_value_to_cb(SOUND_VOLUME, sound_max(SOUND_VOLUME));
if (volume + prescale > maxvol)
prescale = maxvol - volume;
audiohw_set_prescaler(prescale);
if (volume <= minvol)
prescale = 0; /* Make sure the audio gets muted */
#ifndef AUDIOHW_HAVE_MONO_VOLUME
/* At the moment, such targets have lousy volume resolution and so minute
boost won't work how we'd like */
volume += prescale;
#endif
#endif /* TONE_PRESCALER */
#if defined(AUDIOHW_HAVE_MONO_VOLUME)
audiohw_set_volume(volume);
#else /* Stereo volume */
int l = volume, r = volume;
/* Balance the channels scaled by the current volume and min volume */
int balance = sound_prescaler.balance; /* percent */
if (balance > 0)
{
l -= (l - minvol) * balance / 100;
}
else if (balance < 0)
{
r += (r - minvol) * balance / 100;
}
audiohw_set_volume(l, r);
#endif /* AUDIOHW_HAVE_MONO_VOLUME */
#if defined(AUDIOHW_HAVE_LINEOUT)
/* For now, lineout stays at unity */
audiohw_set_lineout_volume(0, 0);
#endif /* AUDIOHW_HAVE_LINEOUT */
}
#endif /* AUDIOIHW_HAVE_CLIPPING */
void sound_set_volume(int value)
{
if (!audio_is_initialized)
return;
#if defined(AUDIOHW_HAVE_CLIPPING)
audiohw_set_volume(value);
#else
sound_prescaler.volume = sound_value_to_cb(SOUND_VOLUME, value);
set_prescaled_volume();
#endif
}
void sound_set_balance(int value)
{
if (!audio_is_initialized)
return;
#if defined(AUDIOHW_HAVE_BALANCE)
audiohw_set_balance(value);
#else
sound_prescaler.balance = value;
set_prescaled_volume();
#endif
}
#if defined(AUDIOHW_HAVE_BASS)
void sound_set_bass(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_bass(value);
#if !defined(AUDIOHW_HAVE_CLIPPING)
sound_prescaler.bass = sound_value_to_cb(SOUND_BASS, value);
set_prescaled_volume();
#endif
}
#endif /* AUDIOHW_HAVE_BASS */
#if defined(AUDIOHW_HAVE_TREBLE)
void sound_set_treble(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_treble(value);
#if !defined(AUDIOHW_HAVE_CLIPPING)
sound_prescaler.treble = sound_value_to_cb(SOUND_TREBLE, value);
set_prescaled_volume();
#endif
}
#endif /* AUDIOHW_HAVE_TREBLE */
#if defined(AUDIOHW_HAVE_BASS_CUTOFF)
void sound_set_bass_cutoff(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_bass_cutoff(value);
}
#endif /* AUDIOHW_HAVE_BASS_CUTOFF */
#if defined(AUDIOHW_HAVE_TREBLE_CUTOFF)
void sound_set_treble_cutoff(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_treble_cutoff(value);
}
#endif /* AUDIOHW_HAVE_TREBLE_CUTOFF */
void sound_set_channels(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_channel(value);
}
void sound_set_stereo_width(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_stereo_width(value);
}
#if defined(AUDIOHW_HAVE_DEPTH_3D)
void sound_set_depth_3d(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_depth_3d(value);
}
#endif /* AUDIOHW_HAVE_DEPTH_3D */
#if defined(AUDIOHW_HAVE_FILTER_ROLL_OFF)
void sound_set_filter_roll_off(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_filter_roll_off(value);
}
#endif
#if defined(AUDIOHW_HAVE_POWER_MODE)
void sound_set_power_mode(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_power_mode(value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ)
int sound_enum_hw_eq_band_setting(unsigned int band,
unsigned int band_setting)
{
static const int8_t
sound_hw_eq_band_setting[AUDIOHW_EQ_SETTING_NUM][AUDIOHW_EQ_BAND_NUM] =
{
[AUDIOHW_EQ_GAIN] =
{
[0 ... AUDIOHW_EQ_BAND_NUM-1] = -1,
[AUDIOHW_EQ_BAND1] = SOUND_EQ_BAND1_GAIN,
#ifdef AUDIOHW_HAVE_EQ_BAND2
[AUDIOHW_EQ_BAND2] = SOUND_EQ_BAND2_GAIN,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND3
[AUDIOHW_EQ_BAND3] = SOUND_EQ_BAND3_GAIN,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND4
[AUDIOHW_EQ_BAND4] = SOUND_EQ_BAND4_GAIN,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND5
[AUDIOHW_EQ_BAND5] = SOUND_EQ_BAND5_GAIN,
#endif
},
#ifdef AUDIOHW_HAVE_EQ_FREQUENCY
[AUDIOHW_EQ_FREQUENCY] =
{
[0 ... AUDIOHW_EQ_BAND_NUM-1] = -1,
#ifdef AUDIOHW_HAVE_EQ_BAND1_FREQUENCY
[AUDIOHW_EQ_BAND1] = SOUND_EQ_BAND1_FREQUENCY,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND2_FREQUENCY
[AUDIOHW_EQ_BAND2] = SOUND_EQ_BAND2_FREQUENCY,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND3_FREQUENCY
[AUDIOHW_EQ_BAND3] = SOUND_EQ_BAND3_FREQUENCY,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND4_FREQUENCY
[AUDIOHW_EQ_BAND4] = SOUND_EQ_BAND4_FREQUENCY,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND5_FREQUENCY
[AUDIOHW_EQ_BAND5] = SOUND_EQ_BAND5_FREQUENCY,
#endif
},
#endif /* AUDIOHW_HAVE_EQ_FREQUENCY */
#ifdef AUDIOHW_HAVE_EQ_WIDTH
[AUDIOHW_EQ_WIDTH] =
{
[0 ... AUDIOHW_EQ_BAND_NUM-1] = -1,
#ifdef AUDIOHW_HAVE_EQ_BAND2_WIDTH
[AUDIOHW_EQ_BAND2] = SOUND_EQ_BAND2_WIDTH,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND3_WIDTH
[AUDIOHW_EQ_BAND3] = SOUND_EQ_BAND3_WIDTH,
#endif
#ifdef AUDIOHW_HAVE_EQ_BAND4_WIDTH
[AUDIOHW_EQ_BAND4] = SOUND_EQ_BAND4_WIDTH,
#endif
},
#endif /* AUDIOHW_HAVE_EQ_WIDTH */
};
if (band < AUDIOHW_EQ_BAND_NUM && band_setting < AUDIOHW_EQ_SETTING_NUM)
return sound_hw_eq_band_setting[band_setting][band];
return -1;
}
static void sound_set_hw_eq_band_gain(unsigned int band, int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_gain(band, value);
#if !defined (AUDIOHW_HAVE_CLIPPING)
int setting = sound_enum_hw_eq_band_setting(band, AUDIOHW_EQ_GAIN);
sound_prescaler.eq_gain[band] = sound_value_to_cb(setting, value);
set_prescaled_volume();
#endif /* AUDIOHW_HAVE_CLIPPING */
}
void sound_set_hw_eq_band1_gain(int value)
{
sound_set_hw_eq_band_gain(AUDIOHW_EQ_BAND1, value);
}
#if defined(AUDIOHW_HAVE_EQ_BAND2)
void sound_set_hw_eq_band2_gain(int value)
{
sound_set_hw_eq_band_gain(AUDIOHW_EQ_BAND2, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND3)
void sound_set_hw_eq_band3_gain(int value)
{
sound_set_hw_eq_band_gain(AUDIOHW_EQ_BAND3, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND4)
void sound_set_hw_eq_band4_gain(int value)
{
sound_set_hw_eq_band_gain(AUDIOHW_EQ_BAND4, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND5)
void sound_set_hw_eq_band5_gain(int value)
{
sound_set_hw_eq_band_gain(AUDIOHW_EQ_BAND5, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND1_FREQUENCY)
void sound_set_hw_eq_band1_frequency(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_frequency(AUDIOHW_EQ_BAND1, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND2_FREQUENCY)
void sound_set_hw_eq_band2_frequency(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_frequency(AUDIOHW_EQ_BAND2, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND3_FREQUENCY)
void sound_set_hw_eq_band3_frequency(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_frequency(AUDIOHW_EQ_BAND3, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND4_FREQUENCY)
void sound_set_hw_eq_band4_frequency(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_frequency(AUDIOHW_EQ_BAND4, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND5_FREQUENCY)
void sound_set_hw_eq_band5_frequency(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_frequency(AUDIOHW_EQ_BAND5, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND2_WIDTH)
void sound_set_hw_eq_band2_width(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_width(AUDIOHW_EQ_BAND2, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND3_WIDTH)
void sound_set_hw_eq_band3_width(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_width(AUDIOHW_EQ_BAND3, value);
}
#endif
#if defined(AUDIOHW_HAVE_EQ_BAND4_WIDTH)
void sound_set_hw_eq_band4_width(int value)
{
if (!audio_is_initialized)
return;
audiohw_set_eq_band_width(AUDIOHW_EQ_BAND4, value);
}
#endif
#endif /* AUDIOHW_HAVE_EQ */
#if defined(HAVE_PITCHCONTROL)
void sound_set_pitch(int32_t pitch)
{
if (!audio_is_initialized)
return;
audiohw_set_pitch(pitch);
}
int32_t sound_get_pitch(void)
{
if (!audio_is_initialized)
return PITCH_SPEED_100;
return audiohw_get_pitch();
}
#endif /* HAVE_PITCHCONTROL */
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