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* Move DSP_CALLBACK_* enum to sound.h

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* Add software based volume control for a certain range (SW_VOLUME_MIN -> SW_VOLUME_MAX)
 * Make Onda VX747 use it
 * Don't change volume or frequency in Ingenic Jz4740 codec driver when they're already set


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@22106 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Maurus Cuelenaere 2009-08-01 21:38:18 +00:00
parent 1ace06a67d
commit 3c7c79189e
6 changed files with 52 additions and 32 deletions
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14
apps/dsp.c
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@ -890,6 +890,15 @@ static void set_gain(struct dsp_config *dsp)
(long) (((int64_t) dsp->data.gain * eq_precut) >> 24);
}
#ifdef HAVE_SW_VOLUME_CONTROL
if (global_settings.volume < SW_VOLUME_MAX ||
global_settings.volume > SW_VOLUME_MIN)
{
int vol_gain = get_replaygain_int(global_settings.volume * 100);
dsp->data.gain = (long) (((int64_t) dsp->data.gain * vol_gain) >> 24);
}
#endif
if (dsp->data.gain == DEFAULT_GAIN)
{
dsp->data.gain = 0;
@ -1149,6 +1158,11 @@ int dsp_callback(int msg, intptr_t param)
case DSP_CALLBACK_SET_TREBLE:
treble = param;
break;
#ifdef HAVE_SW_VOLUME_CONTROL
case DSP_CALLBACK_SET_SW_VOLUME:
set_gain(&AUDIO_DSP);
break;
#endif
#endif
case DSP_CALLBACK_SET_CHANNEL_CONFIG:
dsp_set_channel_config(param);

8
apps/dsp.h
View file

@ -56,14 +56,6 @@ enum
DSP_CROSSFEED
};
enum {
DSP_CALLBACK_SET_PRESCALE = 0,
DSP_CALLBACK_SET_BASS,
DSP_CALLBACK_SET_TREBLE,
DSP_CALLBACK_SET_CHANNEL_CONFIG,
DSP_CALLBACK_SET_STEREO_WIDTH
};
struct dsp_config;
int dsp_process(struct dsp_config *dsp, char *dest,