colorchord/DisplayPie.c

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C
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#include "outdrivers.h"
#include "notefinder.h"
#include <stdio.h>
#include "parameters.h"
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include "color.h"
#include "DrawFunctions.h"
//Uses: note_amplitudes2[note] for how many lights to use.
//Uses: note_amplitudes_out[note] for how bright it should be.
#define MAX_LEDS_PER_NOTE 512
extern short screenx, screeny;
struct DPODriver
{
int leds;
float pie_min;
float pie_max;
};
static void DPOUpdate(void * id, struct NoteFinder*nf)
{
struct DPODriver * d = (struct DPODriver*)id;
int i;
float cw = ((float)(screenx)) / 2.0;
float ch = ((float)(screeny)) / 2.0;
RDPoint pts[4];
float sizeA = sqrtf( screenx * screenx + screeny * screeny ) * d->pie_min;
float sizeB = sqrtf( screenx * screenx + screeny * screeny ) * d->pie_max;
for( i = 0; i < d->leds; i++ )
{
float angA = 6.28318 * (float)i / (float)d->leds;
float angB = 6.28318 * (float)(i+1) / (float)d->leds + .002;
pts[0].x = cw + cos(angA) * sizeA;
pts[0].y = ch + sin(angA) * sizeA;
pts[1].x = cw + cos(angA) * sizeB;
pts[1].y = ch + sin(angA) * sizeB;
pts[2].x = cw + cos(angB) * sizeB;
pts[2].y = ch + sin(angB) * sizeB;
pts[3].x = cw + cos(angB) * sizeA;
pts[3].y = ch + sin(angB) * sizeA;
CNFGColor( OutLEDs[i*3+0] | (OutLEDs[i*3+1] <<8)|(OutLEDs[i*3+2] <<16) );
CNFGTackPoly( pts, 4 );
}
CNFGColor( 0xffffff );
}
static void DPOParams(void * id )
{
struct DPODriver * d = (struct DPODriver*)id;
d->leds = 9; RegisterValue( "leds", PAINT, &d->leds, sizeof( d->leds ) );
d->pie_min = .18; RegisterValue( "pie_min", PAFLOAT, &d->pie_min, sizeof( d->pie_min ) );
d->pie_max = .3; RegisterValue( "pie_max", PAFLOAT, &d->pie_max, sizeof( d->pie_max ) );
}
static struct DriverInstances * DisplayPie(const char * parameters)
{
struct DriverInstances * ret = malloc( sizeof( struct DriverInstances ) );
struct DPODriver * d = ret->id = malloc( sizeof( struct DPODriver ) );
memset( d, 0, sizeof( struct DPODriver ) );
ret->Func = DPOUpdate;
ret->Params = DPOParams;
DPOParams( d );
return ret;
}
REGISTER_OUT_DRIVER(DisplayPie);