91 lines
2 KiB
C
91 lines
2 KiB
C
//Really basic driver, that just selects the most prominent color and washes all the LEDs with that.
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#include "outdrivers.h"
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#include "notefinder.h"
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#include <stdio.h>
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#include <string.h>
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#include "parameters.h"
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#include <stdlib.h>
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#include "color.h"
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#include <stdlib.h>
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#include <math.h>
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#include <unistd.h>
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struct ProminentDriver
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{
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int did_init;
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int total_leds;
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float satamp;
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};
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static void LEDUpdate(void * id, struct NoteFinder*nf)
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{
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struct ProminentDriver * led = (struct ProminentDriver*)id;
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//Step 1: Calculate the quantity of all the LEDs we'll want.
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int totbins = nf->note_peaks;//nf->dists;
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int i;
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float selected_amp = 0;
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float selected_note = 0;
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// if( totbins > led_bins ) totbins = led_bins;
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for( i = 0; i < totbins; i++ )
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{
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float freq = nf->note_positions[i] / nf->freqbins;
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float amp = nf->note_amplitudes2[i] * led->satamp;
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if( amp > selected_amp )
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{
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selected_amp = amp;
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selected_note = freq;
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}
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}
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//Advance the LEDs to this position when outputting the values.
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for( i = 0; i < led->total_leds; i++ )
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{
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float sendsat = selected_amp;
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if( sendsat > 1 ) sendsat = 1;
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int r = CCtoHEX( selected_note, 1.0, sendsat );
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OutLEDs[i*3+0] = r & 0xff;
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OutLEDs[i*3+1] = (r>>8) & 0xff;
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OutLEDs[i*3+2] = (r>>16) & 0xff;
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}
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}
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static void LEDParams(void * id )
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{
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struct ProminentDriver * led = (struct ProminentDriver*)id;
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led->satamp = 2; RegisterValue( "satamp", PAFLOAT, &led->satamp, sizeof( led->satamp ) );
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led->total_leds = 4; RegisterValue( "leds", PAINT, &led->total_leds, sizeof( led->total_leds ) );
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printf( "Found Prominent for output. leds=%d\n", led->total_leds );
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}
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static struct DriverInstances * OutputProminent()
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{
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struct DriverInstances * ret = malloc( sizeof( struct DriverInstances ) );
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memset( ret, 0, sizeof( struct DriverInstances ) );
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struct ProminentDriver * led = ret->id = malloc( sizeof( struct ProminentDriver ) );
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memset( led, 0, sizeof( struct ProminentDriver ) );
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ret->Func = LEDUpdate;
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ret->Params = LEDParams;
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LEDParams( led );
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return ret;
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}
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REGISTER_OUT_DRIVER(OutputProminent);
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