Add LED matrix control through USB iso transfers
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197
colorchord2/DisplayUSBIsochronous.c
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197
colorchord2/DisplayUSBIsochronous.c
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//Copyright 2015 <>< Charles Lohr under the ColorChord License.
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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 <libusb-1.0/libusb.h>
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#include "color.h"
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#include <math.h>
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#include <unistd.h>
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struct LEDOutDriver
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{
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struct libusb_device_handle *devh;
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int did_init;
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int zigzag;
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int total_leds;
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int array;
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float outamp;
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uint8_t * last_leds;
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volatile int readyFlag;
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volatile int transferring;
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int xn;
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int yn;
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int rot90;
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};
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static void isocb(struct libusb_transfer *tf)
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{
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struct LEDOutDriver *led = (struct LEDOutDriver*)tf->user_data;
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led->transferring = 0;
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}
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static void * LEDOutThread( void * v )
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{
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struct LEDOutDriver * led = (struct LEDOutDriver*)v;
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while(1)
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{
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while(!led->readyFlag || !led->did_init || !led->devh) usleep(100);
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int transfers = ((led->total_leds + 19) / 20);
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int totallength = transfers * 64;
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struct libusb_transfer *tf = libusb_alloc_transfer(transfers);
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tf->dev_handle = led->devh;
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tf->flags = LIBUSB_TRANSFER_FREE_TRANSFER;
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tf->type = LIBUSB_TRANSFER_TYPE_ISOCHRONOUS;
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tf->num_iso_packets = transfers;
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libusb_set_iso_packet_lengths(tf, 64);
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tf->endpoint = 1;
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tf->flags = 0;
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tf->buffer = led->last_leds;
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tf->callback = isocb;
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tf->length = totallength;
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tf->user_data = led;
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if(libusb_submit_transfer(tf))
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{
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led->did_init = 0;
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printf( "Fault sending LEDs.\n" );
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}
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led->transferring = 1;
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while(led->transferring)
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{
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libusb_handle_events(NULL);
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}
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led->readyFlag = 0;
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}
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return 0;
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}
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static void LEDUpdate(void * id, struct NoteFinder*nf)
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{
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int i;
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struct LEDOutDriver * led = (struct LEDOutDriver*)id;
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if( !led->did_init )
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{
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led->did_init = 1;
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if( libusb_init(NULL) < 0 )
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{
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fprintf( stderr, "Error: Could not initialize libUSB\n" );
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// exit( -99 );
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}
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led->devh = libusb_open_device_with_vid_pid( NULL, 0x16c0, 0x05dc );
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if( !led->devh )
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{
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fprintf( stderr, "Error: Cannot find device.\n" );
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// exit( -98 );
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}
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}
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while( led->readyFlag ) usleep(100);
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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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int source = i;
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if( !led->array )
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{
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int sx, sy;
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if( led->rot90 )
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{
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sy = i % led->yn;
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sx = i / led->yn;
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}
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else
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{
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sx = i % led->xn;
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sy = i / led->xn;
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}
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if( led->zigzag )
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{
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if( led->rot90 )
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{
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if( sx & 1 )
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{
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sy = led->yn - sy - 1;
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}
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}
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else
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{
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if( sy & 1 )
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{
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sx = led->xn - sx - 1;
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}
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}
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}
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if( led->rot90 )
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{
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source = sx + sy * led->xn;
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}
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else
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{
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source = sx + sy * led->yn;
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}
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}
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led->last_leds[i*3+0 + (i / 20 + 1) * 4] = OutLEDs[source*3+1] * led->outamp;
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led->last_leds[i*3+1 + (i / 20 + 1) * 4] = OutLEDs[source*3+0] * led->outamp;
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led->last_leds[i*3+2 + (i / 20 + 1) * 4] = OutLEDs[source*3+2] * led->outamp;
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if(i % 20 == 0)
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{
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led->last_leds[(i / 20) * 64 + 0] = i;
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led->last_leds[(i / 20) * 64 + 1] = i >> 8;
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led->last_leds[(i / 20) * 64 + 2] = i >> 16;
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led->last_leds[(i / 20) * 64 + 3] = i >> 24;
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}
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}
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led->readyFlag = 1;
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}
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static void LEDParams(void * id )
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{
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struct LEDOutDriver * led = (struct LEDOutDriver*)id;
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led->total_leds = GetParameterI( "leds", 300 );
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led->last_leds = (uint8_t*)malloc( led->total_leds * 3 + 1 + ((led->total_leds + 19) / 20) * 4 + 64);
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led->outamp = .1; RegisterValue( "ledoutamp", PAFLOAT, &led->outamp, sizeof( led->outamp ) );
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led->zigzag = 0; RegisterValue( "zigzag", PAINT, &led->zigzag, sizeof( led->zigzag ) );
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led->xn = 16; RegisterValue( "lightx", PAINT, &led->xn, sizeof( led->xn ) );
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led->yn = 9; RegisterValue( "lighty", PAINT, &led->yn, sizeof( led->yn ) );
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led->rot90 = 0; RegisterValue( "rot90", PAINT, &led->rot90, sizeof( led->rot90 ) );
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led->array = 0; RegisterValue( "ledarray", PAINT, &led->array, sizeof( led->array ) );
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led->did_init = 0;
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}
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static struct DriverInstances * DisplayUSBIsochronous()
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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 LEDOutDriver * led = ret->id = malloc( sizeof( struct LEDOutDriver ) );
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ret->Func = LEDUpdate;
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ret->Params = LEDParams;
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OGCreateThread( LEDOutThread, led );
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led->readyFlag = 0;
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LEDParams( led );
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return ret;
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}
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REGISTER_OUT_DRIVER(DisplayUSBIsochronous);
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@ -1,6 +1,6 @@
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all : colorchord colorchord-opengl
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all : colorchord colorchord-opengl
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OUTS := OutputVoronoi.o DisplayArray.o OutputLinear.o DisplayPie.o DisplayNetwork.o DisplayUSB2812.o DisplayDMX.o OutputProminent.o RecorderPlugin.o DisplayHIDAPI.o hidapi.o OutputCells.o DisplaySHM.o DisplayFileWrite.o DisplayRadialPoles.o
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OUTS := OutputVoronoi.o DisplayArray.o OutputLinear.o DisplayPie.o DisplayNetwork.o DisplayUSB2812.o DisplayUSBIsochronous.o DisplayDMX.o OutputProminent.o RecorderPlugin.o DisplayHIDAPI.o hidapi.o OutputCells.o DisplaySHM.o DisplayFileWrite.o DisplayRadialPoles.o
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WINGCC?=i686-w64-mingw32-gcc
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WINGCC?=i686-w64-mingw32-gcc
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108
colorchord2/iso.conf
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108
colorchord2/iso.conf
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@ -0,0 +1,108 @@
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# This is the configuration file for colorchord.
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# Most values are already defaulted in the software.
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# This file is constantly checked for new versions.
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# \r, and ; are used as terminators, so you can put
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# multiple entries on the same line.
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#Whether to limit the control loop to ~60ish FPS.
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cpu_autolimit = 1
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#General GUI properties.
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title = PA Test
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#set_screenx = 720
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#set_screeny = 480
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#Sound properties.
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buffer = 384
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play = 0
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rec = 1
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channels = 2
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samplerate = 44100
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wininput = 1
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#Compiled version will default this.
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#sound_source = ALSA
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#-1 indicates left and right, 0 left, 1 right.
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sample_channel = -1
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sourcename = alsa_output.pci-0000_00_1b.0.analog-stereo.monitor
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#alsa_output.pci-0000_00_1f.3.analog-stereo.monitor
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#default
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# alsa_output.pci-0000_00_1b.0.analog-stereo.monitor
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#alsa_output.pci-0000_00_1f.3.analog-stereo.monitor << New laptop
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#use pactl list | grep pci- | grep monitor
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##################################
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# General ColorChord properties. #
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##################################
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# How much to amplify the incoming signal.
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amplify = 5
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# What is the base note? I.e. the lowest note.
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# Note that it won't have very much impact until an octave up though!
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base_hz = 55
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# This is only used when dealing with the slow decompose (now defunct)
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# decompose_iterations = 1000
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# default_sigma = 1.4000
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# DFT properties for the DFT up top.
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dft_iir = 0.6
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dft_q = 20.0000
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dft_speedup = 1000.0000
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octaves = 5
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# Should we use a progressive DFT?
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# 0 = DFT Quick
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# 1 = DFT Progressive
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# 2 = DFT Progressive Integer
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# 3 = DFT Progressive Integer Skippy
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# 4 = Integer, 32-Bit, Progressive, Skippy.
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do_progressive_dft = 4fa
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filter_iter = 2
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filter_strength = .5
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# How many bins per octave to use?
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freqbins = 24
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# For the final note information... How much to slack everything?
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note_attach_amp_iir = 0.3500
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note_attach_amp_iir2 = 0.250
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note_attach_freq_iir = 0.3000
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#How many bins a note can jump from frame to frame to be considered a slide.
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#this is used to prevent notes from popping in and out a lot.
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note_combine_distance = 0.5000
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note_jumpability = 1.8000
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note_minimum_new_distribution_value = 0.0200
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note_out_chop = 0.05000
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#compress_coefficient = 4.0
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#compress_exponent = .5
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#=======================================================================
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#Outputs
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outdrivers = DisplayUSBIsochronous, OutputVoronoi, DisplayArray
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leds = 484
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lightx = 11
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lighty = 44
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fromsides = 1
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shape_cutoff = 0.03
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satamp = 2.000
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amppow = 2.5
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distpow = 1.500
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zigzag = 1
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rot90 = 1
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ledoutamp = .01
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note_attach_amp_iir = .3000
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note_attach_amp_iir2 = .1500
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note_attach_freq_iir = 0.3000
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steady_bright = 0
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