util

package
v0.0.0-...-d0979cb Latest Latest
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 Go to latest Published: May 18, 2020 License: MIT Imports: 29 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	NoteOnStatus       byte = 0x90
	NoteOffStatus      byte = 0x80
	PressureStatus     byte = 0xa0
	ControllerStatus   byte = 0xb0
	ProgramStatus      byte = 0xc0
	ChanPressureStatus byte = 0xd0
	PitchbendStatus    byte = 0xe0
)

These are the values of MIDI status bytes

View Source 
const MaxClicks = Clicks(math.MaxInt64)

MaxClicks is the high-possible value for Clicks

View Source 
const UnfinishedDuration = math.MaxInt32 - 1

UnfinishedDuration is an 'unset' value for Duration

Variables

View Source 
var DebugHub = DebugFlags{
	Realtime: true,
	Cursor:   true,
}

DebugHub controls debugging output

View Source 
var DebugUtil = DebugFlags{}

DebugUtil controls debugging

View Source 
var DefaultFragmentShader = `
#version 330

uniform sampler2D tex;
uniform vec2 tjt;

in vec2 fragTexCoord;
in vec4 finalcolor;
in vec2 finaldebug;
in vec2 finaltjt;

out vec4 outputColor;

void main() {
	outputColor = finalcolor;
	// if ( finaldebug.x < 0.5 ) {
	// 	outputColor = texture(tex, fragTexCoord);
	// } else if ( finaldebug.x > 0.5 ) {
		outputColor.r = 0.0;
		outputColor.g = 0.8;
		outputColor.b = 0.0;
	outputColor = texture(tex, fragTexCoord);
	outputColor.r = 1.0;
	// }
}
` + "\x00"

DefaultFragmentShader xxx

View Source 
var DefaultVertexShader = `
#version 330

uniform mat4 projection;
uniform vec4 color;
uniform vec4 misc;
uniform vec2 debug;

in vec3 vert;
in vec2 vertTexCoord;

out vec2 fragTexCoord;
out vec4 finalcolor;
out vec4 finalvert;
out int finaltype;
out vec2 finaldebug;

vec3 hsl2rgb( in vec3 c )
{
    vec3 rgb = clamp( abs(mod(c.x*6.0+vec3(0.0,4.0,2.0),6.0)-3.0)-1.0, 0.0, 1.0 );

    return c.z + c.y * (rgb-0.5)*(1.0-abs(2.0*c.z-1.0));
}

vec3 HueShift (in vec3 Color, in float Shift)
{
    vec3 P = vec3(0.55735)*dot(vec3(0.55735),Color);
    
    vec3 U = Color-P;
    
    vec3 V = cross(vec3(0.55735),U);    

    Color = U*cos(Shift*6.2832) + V*sin(Shift*6.2832) + P;
    
    return vec3(Color);
}

vec3 rgb2hsl( in vec3 c ){
  float h = 0.0;
	float s = 0.0;
	float l = 0.0;
	float r = c.r;
	float g = c.g;
	float b = c.b;
	float cMin = min( r, min( g, b ) );
	float cMax = max( r, max( g, b ) );

	l = ( cMax + cMin ) / 2.0;
	if ( cMax > cMin ) {
		float cDelta = cMax - cMin;
        
        //s = l < .05 ? cDelta / ( cMax + cMin ) : cDelta / ( 2.0 - ( cMax + cMin ) ); Original
		s = l < .0 ? cDelta / ( cMax + cMin ) : cDelta / ( 2.0 - ( cMax + cMin ) );
        
		if ( r == cMax ) {
			h = ( g - b ) / cDelta;
		} else if ( g == cMax ) {
			h = 2.0 + ( b - r ) / cDelta;
		} else {
			h = 4.0 + ( r - g ) / cDelta;
		}

		if ( h < 0.0) {
			h += 6.0;
		}
		h = h / 6.0;
	}
	return vec3( h, s, l );
}

vec3 rgb2hsv(vec3 c)
{
    vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
    vec4 p = mix(vec4(c.bg, K.wz), vec4(c.gb, K.xy), step(c.b, c.g));
    vec4 q = mix(vec4(p.xyw, c.r), vec4(c.r, p.yzx), step(p.x, c.r));

    float d = q.x - min(q.w, q.y);
    float e = 1.0e-10;
    return vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);
}

vec3 hsv2rgb(vec3 c)
{
    vec4 K = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
    vec3 p = abs(fract(c.xxx + K.xyz) * 6.0 - K.www);
    return c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
}

void main() {

	float angle = misc.x;
	float invsize = 1.0 / misc.y;
	float size = misc.y;
	float x = misc.z;
	float y = misc.w;

	fragTexCoord = vertTexCoord;
	finalvert = vec4(size*vert.x,size*vert.y,vert.z,1);
	if (angle != 0.0) {
		mat4 rotation = mat4(mat2(
			cos(angle), -sin(angle),
			sin(angle), cos(angle)));
		finalvert = finalvert * rotation;
	}
	finalvert.x += x;
	finalvert.y += y;

	gl_Position = projection * finalvert;

	vec4 mycolor = vec4(hsl2rgb(vec3(color.x,color.y,color.z)), color.a);
	finalcolor = mycolor;
	finaltype = 1;
	finaldebug = debug;
}
` + "\x00"

DefaultVertexShader xxx

View Source 
var EffectsJSON map[string]interface{}

EffectsJSON is an unmarshalled version of the effects.json file

View Source 
var FragmentShader2 = `
#version 330

uniform sampler2D tex;
uniform vec2 tjt;

in vec2 fragTexCoord;
in vec4 finalcolor;
in vec2 finaldebug;
in vec2 finaltjt;

out vec4 outputColor;

void main() {
	outputColor = finalcolor;
	// if ( finaldebug.x < 0.5 ) {
	// 	outputColor = texture(tex, fragTexCoord);
	// } else if ( finaldebug.x > 0.5 ) {
		outputColor.r = 0.0;
		outputColor.g = 0.0;
		outputColor.b = 0.8;
	outputColor = texture(tex, fragTexCoord);
	outputColor.g = 1.0;
	// }
}
` + "\x00"

FragmentShader2 xxx

View Source 
var LineVerticesForLines = []float32{

	0.0, 0.0, 1.0, 0.0, 0.0,
	1.0, 0.0, 1.0, 1.0, 0.0,
}

LineVerticesForLines xxx

View Source 
var LineVerticesForLines2 = []float32{

	0.0, 0.0, 1.0, 0.0, 0.0,
	1.0, 0.0, 1.0, 1.0, 0.0,
}

LineVerticesForLines2 xxx

View Source 
var PadSettings = map[string]PadSetting{
	"A": {Sidmin: 11000, Sidmax: 12999},
}

PadSettings gives va;ies

View Source 
var ParamDefs map[string]ParamDef

ParamDefs is the set of all parameter definitions

View Source 
var ParamEnums map[string][]string

ParamEnums contains the lists of enumerated values for string parameters

View Source 
var Scales map[string]*Scale

Scales maps a name to a Scale

View Source 
var SquareVerticesForLines = []float32{

	-1.0, -1.0, 1.0, 0.0, 0.0,
	1.0, -1.0, 1.0, 1.0, 0.0,

	1.0, -1.0, 1.0, 1.0, 0.0,
	1.0, 1.0, 1.0, 1.0, 1.0,

	1.0, 1.0, 1.0, 1.0, 1.0,
	-1.0, 1.0, 1.0, 0.0, 1.0,

	-1.0, 1.0, 1.0, 0.0, 1.0,
	-1.0, -1.0, 1.0, 0.0, 0.0,
}

SquareVerticesForLines xxx

View Source 
var SquareVerticesForLines2 = []float32{

	-1.0, -1.0, 1.0, 0.0, 0.0,
	1.0, -1.0, 1.0, 1.0, 0.0,

	1.0, -1.0, 1.0, 1.0, 0.0,
	1.0, 1.0, 1.0, 1.0, 1.0,

	1.0, 1.0, 1.0, 1.0, 1.0,
	-1.0, 1.0, 1.0, 0.0, 1.0,

	-1.0, 1.0, 1.0, 0.0, 1.0,
	-1.0, -1.0, 1.0, 0.0, 0.0,
}

SquareVerticesForLines2 xxx

View Source 
var SquareVerticiesForTriangles = []float32{

	-1.0, -1.0, 1.0, 1.0, 0.0,
	1.0, -1.0, 1.0, 0.0, 0.0,
	-1.0, 1.0, 1.0, 1.0, 1.0,
	1.0, -1.0, 1.0, 0.0, 0.0,
	1.0, 1.0, 1.0, 0.0, 1.0,
	-1.0, 1.0, 1.0, 1.0, 1.0,
}

SquareVerticiesForTriangles xxx

View Source 
var SquareVerticiesForTriangles2 = []float32{

	-1.0, -1.0, 1.0, 1.0, 0.0,
	1.0, -1.0, 1.0, 0.0, 0.0,
	-1.0, 1.0, 1.0, 1.0, 1.0,
	1.0, -1.0, 1.0, 0.0, 0.0,
	1.0, 1.0, 1.0, 0.0, 1.0,
	-1.0, 1.0, 1.0, 1.0, 1.0,
}

SquareVerticiesForTriangles2 xxx

View Source 
var VertexShader2 = `
#version 330

uniform mat4 projection;
uniform vec4 color;
uniform vec4 misc;
uniform vec2 debug;

in vec3 vert;
in vec2 vertTexCoord;

out vec2 fragTexCoord;
out vec4 finalcolor;
out vec4 finalvert;
out int finaltype;
out vec2 finaldebug;

vec3 hsl2rgb( in vec3 c )
{
    vec3 rgb = clamp( abs(mod(c.x*6.0+vec3(0.0,4.0,2.0),6.0)-3.0)-1.0, 0.0, 1.0 );

    return c.z + c.y * (rgb-0.5)*(1.0-abs(2.0*c.z-1.0));
}

vec3 HueShift (in vec3 Color, in float Shift)
{
    vec3 P = vec3(0.55735)*dot(vec3(0.55735),Color);
    
    vec3 U = Color-P;
    
    vec3 V = cross(vec3(0.55735),U);    

    Color = U*cos(Shift*6.2832) + V*sin(Shift*6.2832) + P;
    
    return vec3(Color);
}

vec3 rgb2hsl( in vec3 c ){
  float h = 0.0;
	float s = 0.0;
	float l = 0.0;
	float r = c.r;
	float g = c.g;
	float b = c.b;
	float cMin = min( r, min( g, b ) );
	float cMax = max( r, max( g, b ) );

	l = ( cMax + cMin ) / 2.0;
	if ( cMax > cMin ) {
		float cDelta = cMax - cMin;
        
        //s = l < .05 ? cDelta / ( cMax + cMin ) : cDelta / ( 2.0 - ( cMax + cMin ) ); Original
		s = l < .0 ? cDelta / ( cMax + cMin ) : cDelta / ( 2.0 - ( cMax + cMin ) );
        
		if ( r == cMax ) {
			h = ( g - b ) / cDelta;
		} else if ( g == cMax ) {
			h = 2.0 + ( b - r ) / cDelta;
		} else {
			h = 4.0 + ( r - g ) / cDelta;
		}

		if ( h < 0.0) {
			h += 6.0;
		}
		h = h / 6.0;
	}
	return vec3( h, s, l );
}

vec3 rgb2hsv(vec3 c)
{
    vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
    vec4 p = mix(vec4(c.bg, K.wz), vec4(c.gb, K.xy), step(c.b, c.g));
    vec4 q = mix(vec4(p.xyw, c.r), vec4(c.r, p.yzx), step(p.x, c.r));

    float d = q.x - min(q.w, q.y);
    float e = 1.0e-10;
    return vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);
}

vec3 hsv2rgb(vec3 c)
{
    vec4 K = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
    vec3 p = abs(fract(c.xxx + K.xyz) * 6.0 - K.www);
    return c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
}

void main() {

	float angle = misc.x;
	float invsize = 1.0 / misc.y;
	float size = misc.y;
	float x = misc.z;
	float y = misc.w;

	fragTexCoord = vertTexCoord;
	finalvert = vec4(size*vert.x,size*vert.y,vert.z,1);
	if (angle != 0.0) {
		mat4 rotation = mat4(mat2(
			cos(angle), -sin(angle),
			sin(angle), cos(angle)));
		finalvert = finalvert * rotation;
	}
	finalvert.x += x;
	finalvert.y += y;

	gl_Position = projection * finalvert;

	vec4 mycolor = vec4(hsl2rgb(vec3(color.x,color.y,color.z)), color.a);
	finalcolor = mycolor;
	finaltype = 1;
	finaldebug = debug;
}
` + "\x00"

VertexShader2 xxx

Functions

func ClearExternalScale 

func ClearExternalScale()

ClearExternalScale xxx

func ConfigValue 

func ConfigValue(nm string) string

ConfigValue xxx

func CopyDir 

func CopyDir(src, dest string) error

CopyDir xxx

func DataDir 

func DataDir() string

DataDir xxx

func EngineDir 

func EngineDir(engine string) string

EngineDir xxx

func EngineFilePath 

func EngineFilePath(engine string, nm string) string

EngineFilePath xxx

func EnginePath 

func EnginePath(engineName string, nm string) string

EnginePath xxx

func ErrorResponse 

func ErrorResponse(err error, id string) string

ErrorResponse return a JSON 2.0 error response

func GetBool 

func GetBool(paramvalues map[string]string, name string) (bool, error)

GetBool complains if a parameter is not there, but still returns false

func GetFloat 

func GetFloat(paramvalues map[string]string, name string) (float32, error)

GetFloat returns an error if the parameter is not there

func GetInt 

func GetInt(paramvalues map[string]string, name string) (int, error)

GetInt throws an error if the parameter is not there

func GetRequest 

func GetRequest(conn *websocket.Conn) (method, params, id string, err error)

GetRequest reads a JSON request from a websocket

func GetString 

func GetString(pmap map[string]string, name string) (string, error)

GetString complains if a parameter is not there, but still returns ""

func ISFFilePaths 

func ISFFilePaths(venue string, nm string) (string, string)

ISFFilePaths xxx

func IsTrueValue 

func IsTrueValue(value string) bool

IsTrueValue returns true if the value is some version of true

func ListenToMIDI 

func ListenToMIDI()

ListenToMIDI publishes MIDI events

func LoadEffectsJSON 

func LoadEffectsJSON(engineName string)

LoadEffectsJSON returns an unmarshalled version of the effects.json file

func LoadImage 

func LoadImage(path string) (*image.NRGBA, error)

LoadImage reads an image file

func LoadParamDefs 

func LoadParamDefs(engineName string) error

LoadParamDefs initializes the list of parameters

func LoadParamEnums 

func LoadParamEnums(engineName string)

LoadParamEnums initializes the list of enumerated parameter values

func MidiFilePath 

func MidiFilePath(venue string, nm string) string

MidiFilePath xxx

func ParseBool 

func ParseBool(s string, name string) (bool, error)

ParseBool xxx

func ParseFloat32 

func ParseFloat32(s string, name string) (float32, error)

ParseFloat32 xxx

func ParseInt 

func ParseInt(s string, name string) (int, error)

ParseInt xxx

func RecordingsPath 

func RecordingsPath(venue string, nm string) string

RecordingsPath xxx

func ResultResponse 

func ResultResponse(resultObj interface{}, id string) string

ResultResponse returns a JSON 2.0 result response

func RootBinPath 

func RootBinPath(nm string) string

RootBinPath xxx

func RootConfigFilePath 

func RootConfigFilePath(nm string) string

RootConfigFilePath xxx

func RootPath 

func RootPath() string

RootPath is the root

func RootTemplatePath 

func RootTemplatePath(nm string) string

RootTemplatePath xxx

func SendErrorResponse 

func SendErrorResponse(conn *websocket.Conn, rpcerr error, id string) error

SendErrorResponse sends a JSON 2.0 response

func SendMail 

func SendMail(recipient, subject, body string) error

SendMail xxx

func SendResponse 

func SendResponse(conn *websocket.Conn, result interface{}, err error, id string) error

SendResponse sends a JSON 2.0 response

func SendResultResponse 

func SendResultResponse(conn *websocket.Conn, result interface{}, id string) error

SendResultResponse sends a JSON 2.0 response

func SetExternalScale 

func SetExternalScale(pitch int, on bool)

SetExternalScale xxx

func SetRootPath 

func SetRootPath(path string)

SetRootPath xxx

func Spawn 

func Spawn(executable string, stdout io.Writer, stderr io.Writer, args ...string) error

Spawn executes something in the background

func StartDeviceInput 

func StartDeviceInput(stdout io.Writer, stderr io.Writer) error

StartDeviceInput starts anything needed to provide device inputs

func StartVizNats 

func StartVizNats()

StartVizNats xxx

func StringMap 

func StringMap(params string) (map[string]string, error)

StringMap takes a JSON string and returns a map of elements

func StringParamOfAPI 

func StringParamOfAPI(api string, pmap map[string]string, name string) (string, error)

StringParamOfAPI xxx

func VenueDir 

func VenueDir(venue string) string

VenueDir xxx

func VenueFilePath 

func VenueFilePath(venue string, nm string) string

VenueFilePath xxx

Types

type APIEvent 

type APIEvent struct {
	// contains filtered or unexported fields
}

APIEvent is an API invocation

type APIHandler 

type APIHandler func(method string, pmap map[string]string) error

APIHandler is an API execution func

type ActivePhrase 

type ActivePhrase struct {
	// contains filtered or unexported fields
}

ActivePhrase is a currently active MIDI phrase

func NewActivePhrase 

func NewActivePhrase(p *Phrase) *ActivePhrase

NewActivePhrase constructs a new ActivePhrase for a Phrase

type ActivePhrasesManager 

type ActivePhrasesManager struct {
	ActivePhrasesMutex sync.RWMutex
	// contains filtered or unexported fields
}

ActivePhrasesManager manages ActivePhrases

func NewActivePhrasesManager 

func NewActivePhrasesManager(midiOutput MidiDevice) *ActivePhrasesManager

NewActivePhrasesManager xxx

func (*ActivePhrasesManager) AdvanceActivePhrasesByOneStep 

func (mgr *ActivePhrasesManager) AdvanceActivePhrasesByOneStep()

AdvanceActivePhrasesByOneStep xxx

func (*ActivePhrasesManager) CallbackOnOutput 

func (mgr *ActivePhrasesManager) CallbackOnOutput(callback NoteOutputCallbackFunc) CallbackID

CallbackOnOutput xxx

func (*ActivePhrasesManager) StartPhrase 

func (mgr *ActivePhrasesManager) StartPhrase(p *Phrase, cid string)

StartPhrase xxx NOTE: startPhrase assumes that the r.activePhrasesMutex is held for writing

func (*ActivePhrasesManager) StopPhrase 

func (mgr *ActivePhrasesManager) StopPhrase(cid string, active *ActivePhrase, forceDelete bool)

StopPhrase xxx NOTE: stopPhrase assumes that the r.activePhrasesMutex is held for writing

func (*ActivePhrasesManager) UncallbackOnOutput 

func (mgr *ActivePhrasesManager) UncallbackOnOutput(id CallbackID)

UncallbackOnOutput xxx

type Alg 

type Alg interface {
	// Draw(pl *Pipeline)
	// ID() string
	// State() SpriteState
	// Params() *SpriteParams
	// AdjustForAge(secs float32)
	CanHandleCursor(ce *CursorEvent) bool
	ExecuteIncomingCursor(ce *CursorEvent)
}

Alg xxx

type AlgDefault 

type AlgDefault struct {
	Alg
}

AlgDefault is an Alg that does nothing

type AlgMaze 

type AlgMaze struct {
	Alg
}

AlgMaze is an Alg that manages a maze

type CallbackID 

type CallbackID int

CallbackID xxx

type Clicks 

type Clicks int64

Clicks is a time or duration value. It is NOT MIDI clock. NOTE: A Clicks value for a Note can be negative because it's relative to the starting time of a Phrase

type Command 

type Command struct {
	Action string // e.g. "addmidi"
	Arg    interface{}
}

Command is sent on the control channel of the Hub

type CursorEvent 

type CursorEvent struct {
	ID         string // of the form {sessionid}@{IP}
	X          float32
	Y          float32
	Z          float32
	Downdragup string
	LoopsLeft  int
	Fresh      bool
	Quantized  bool
}

CursorEvent is a down, drag, or up event inside a loop step

type DebugFlags 

type DebugFlags struct {
	MIDI     bool
	API      bool
	Loop     bool
	Gen      bool
	Realtime bool
	OSC      bool
	ISF      bool
	Cursor   bool
	Remote   bool
}

DebugFlags xxx

type Hub 

type Hub struct {

	// OSCInput    chan oscDeviceEvent
	KillMe bool // set to true if Hub should be shutdown
	// contains filtered or unexported fields
}

Hub is a router for devices and engines

func NewHub 

func NewHub() *Hub

NewHub xxx

func TheOneHub 

func TheOneHub() *Hub

TheOneHub xxx

func (*Hub) AddVenue 

func (hub *Hub) AddVenue(v *Venue) error

AddVenue xxx

func (*Hub) BootEngine 

func (hub *Hub) BootEngine(engineName, hubAddr, engineAddr string) error

BootEngine xxx

func (*Hub) CreateVenue 

func (hub *Hub) CreateVenue(vname string, ename string) (*Venue, error)

CreateVenue xxx

func (*Hub) GetVenue 

func (hub *Hub) GetVenue(name string) *Venue

GetVenue xxx

func (*Hub) LoadConfig 

func (hub *Hub) LoadConfig()

LoadConfig xxx

func (*Hub) LoadVenues 

func (hub *Hub) LoadVenues() error

LoadVenues loads all the venues in the root/venues directory

func (*Hub) NumUsers 

func (hub *Hub) NumUsers() int

NumUsers xxx

func (*Hub) NumVenues 

func (hub *Hub) NumVenues() int

NumVenues xxx

func (*Hub) Start 

func (hub *Hub) Start()

Start starts listeners, etc

func (*Hub) VenueCheckin 

func (hub *Hub) VenueCheckin(venue *Venue, user *VizUser) error

VenueCheckin xxx

func (*Hub) Wait 

func (hub *Hub) Wait()

Wait xxx

type LoopEvent 

type LoopEvent struct {
	CursorEvent *CursorEvent
}

LoopEvent is what gets played back in a loop

type MIDIFile 

type MIDIFile struct {
	// contains filtered or unexported fields
}

MIDIFile lets you read a MIDI File

func NewMIDIFile 

func NewMIDIFile(path string) (*MIDIFile, error)

NewMIDIFile creates a MIDIFile

func (*MIDIFile) Parse 

func (m *MIDIFile) Parse() error

Parse reads the contents of a MIDIFile and creates Phrases for each track

func (*MIDIFile) Phrase 

func (m *MIDIFile) Phrase() *Phrase

Phrase returns a single Phrase containing all tracks in the MIDIFile

type MidiDevice 

type MidiDevice interface {
	Inputs() []string
	ListeningInputs() []string
	Outputs() []string
	SendNote(note *Note, debug bool, callbacks []*NoteOutputCallback)
	SendANO(outputName string) // lame
	ReadEvent(inputName string) (MidiDeviceEvent, error)
	Poll(inputName string) (bool, error)
	Listen(inputName string) error
	LoadSynths(path string) error
}

MidiDevice mediates all access to MIDI devices

func NewMidiDevice 

func NewMidiDevice() (MidiDevice, error)

NewMidiDevice xxx

func NewNomidiDevice 

func NewNomidiDevice() (MidiDevice, error)

NewNomidiDevice returns a MidiDevice interface for portmidi

type MidiDeviceEvent 

type MidiDeviceEvent struct {
	Timestamp int64 // milliseconds
	Status    int64
	Data1     int64
	Data2     int64
}

MidiDeviceEvent is a single MIDI event

type MyWriter 

type MyWriter struct {
	Source string
}

MyWriter xxx

func (*MyWriter) Write 

func (w *MyWriter) Write(p []byte) (n int, err error)

type NomidiDevice 

type NomidiDevice struct {
}

NomidiDevice is used when you don't want to do MIDI

func (*NomidiDevice) Inputs 

func (m *NomidiDevice) Inputs() []string

Inputs returns a list of MIDI input names

func (*NomidiDevice) Listen 

func (m *NomidiDevice) Listen(dev string) error

Listen for input on a particular MIDI device

func (*NomidiDevice) ListeningInputs 

func (m *NomidiDevice) ListeningInputs() []string

ListeningInputs returns a list of MIDI input names that are open for listening

func (NomidiDevice) LoadSynths 

func (m NomidiDevice) LoadSynths(path string) error

func (*NomidiDevice) Outputs 

func (m *NomidiDevice) Outputs() []string

Outputs returns a list of MIDI output names

func (NomidiDevice) Poll 

func (m NomidiDevice) Poll(inputName string) (bool, error)

Poll xxx

func (NomidiDevice) ReadEvent 

func (m NomidiDevice) ReadEvent(inputName string) (MidiDeviceEvent, error)

ReadEvent xxx

func (*NomidiDevice) SendANO 

func (m *NomidiDevice) SendANO(synth string)

SendANO sends all-notes-off

func (*NomidiDevice) SendNote 

func (m *NomidiDevice) SendNote(n *Note, debug bool, callbacks []*NoteOutputCallback)

SendNote sends MIDI output for a Note

type NomidiEvent 

type NomidiEvent struct {
}

NomidiEvent is a single MIDI input event XXX - since is local, PortmidiEvent should just be portmidi.Event

type Note 

type Note struct {
	TypeOf   NoteType // NOTE, NOTEON, NOTEOFF, NOTEBYTES
	Clicks   Clicks   // nanoseconds
	Duration Clicks   // nanoseconds, when it's a NOTE
	// Channel  uint8    // MIDI Channel 1-based, 0 if not set?
	Pitch    uint8 // 0-127
	Velocity uint8 // 0-127
	Synth    string
	// contains filtered or unexported fields
}

Note is a single item in a Phrase

func NewNote 

func NewNote(synth string, pitch uint8, velocity uint8, duration Clicks) *Note

NewNote creates a Note with a Duration

func NewNoteOff 

func NewNoteOff(synth string, pitch uint8, velocity uint8) *Note

NewNoteOff creates a new NOTEOFF

func NewNoteOn 

func NewNoteOn(synth string, pitch uint8, velocity uint8) *Note

NewNoteOn createx a new NOTEON

func (*Note) Compare 

func (n *Note) Compare(n2 *Note) int

Compare is used to determine Note ordering

func (*Note) Copy 

func (n *Note) Copy() *Note

Copy a Note. NOTE: the next value is cleared

func (*Note) EndOf 

func (n *Note) EndOf() Clicks

EndOf returns the ending time of a note

func (*Note) Format 

func (n *Note) Format(f fmt.State, c rune)

Format lets you conveniently print a Note with fmt functions

func (*Note) IsNote 

func (n *Note) IsNote() bool

IsNote returns true if the note is a NOTE, NOTEON, or NOTEOFF

func (*Note) ReadablePitch 

func (n *Note) ReadablePitch() string

ReadablePitch returns a readable string for a note pitch Note that it also includes a + or - if it's a NOTEON or NOTEOFF. If it's not a NOTE-type note, "" is returned

func (*Note) ToString 

func (n *Note) ToString() string

ToString produces a human-readable version of a Note. Note that it includes the surrounding quotes that make it look like a Phrase

type NoteOutputCallback 

type NoteOutputCallback struct {
	Callback func(n *Note)
	// contains filtered or unexported fields
}

NoteOutputCallback is a call

type NoteOutputCallbackFunc 

type NoteOutputCallbackFunc func(n *Note)

NoteOutputCallbackFunc xxx

type NoteType 

type NoteType int

NoteType is NOTE, NOTEON, NOTEOFF, or NOTEBYTES 

const (
	// Values match keykit, make it easier to debug
	NOTE      NoteType = 2 // full note with duration
	NOTEON    NoteType = 4
	NOTEOFF   NoteType = 8
	NOTEBYTES NoteType = 1
)

These are the constant values of NoteType

type PadSetting 

type PadSetting struct {
	Sidmin, Sidmax int
}

PadSetting specifies a range of sid (session IDs from TUIO)

type ParamCallback 

type ParamCallback func(name string, value string) error

ParamCallback is the callback when setting parameter values

type ParamDef 

type ParamDef struct {
	Category string
	Init     string
	// contains filtered or unexported fields
}

ParamDef is a single parameter definition.

type ParamValue 

type ParamValue interface{}

ParamValue is a single parameter value which could be any of the param*Value types

type ParamValues 

type ParamValues struct {
	// contains filtered or unexported fields
}

ParamValues is the set of all parameter values

func NewParamValues 

func NewParamValues() *ParamValues

NewParamValues creates a new ParamValues

func (*ParamValues) ParamBoolValue 

func (vals *ParamValues) ParamBoolValue(name string) bool

ParamBoolValue xxx

func (*ParamValues) ParamFloatValue 

func (vals *ParamValues) ParamFloatValue(name string) float32

ParamFloatValue xxx

func (*ParamValues) ParamIntValue 

func (vals *ParamValues) ParamIntValue(name string) int

ParamIntValue xxx

func (*ParamValues) ParamStringValue 

func (vals *ParamValues) ParamStringValue(name string) string

ParamStringValue xxx

func (*ParamValues) SetParamValue 

func (vals *ParamValues) SetParamValue(nm string, v ParamValue)

SetParamValue xxx

func (*ParamValues) SetParamValueWithString 

func (vals *ParamValues) SetParamValueWithString(name, value string, callback ParamCallback) error

SetParamValueWithString xxx

type Phrase 

type Phrase struct {
	Length Clicks
	// contains filtered or unexported fields
}

Phrase is a time-ordered list of Notes which are MIDI messages and other realtime events).

func NewPhrase 

func NewPhrase() *Phrase

NewPhrase returns a new Phrase

func (*Phrase) AdjustTimes 

func (p *Phrase) AdjustTimes(shift Clicks) *Phrase

AdjustTimes returns a new Phrase shifted by shift Clicks

func (*Phrase) Append 

func (p *Phrase) Append(n *Note)

Append appends a note to the end of a Phrase, assuming that the last note in the Phrase is before or at the same time as tne appended note.

func (*Phrase) Arpeggio 

func (p *Phrase) Arpeggio() *Phrase

Arpeggio returns an arpeggiated version of the phrase. One way of describing is that all the notes have been separated and then put back together, back-to-back.

func (*Phrase) AtTime 

func (p *Phrase) AtTime(tm Clicks) *Phrase

AtTime returns those notes in the specified phrase that are sounding at the specified time. If a note ends exactly at the specified time, it is not included.

func (*Phrase) Copy 

func (p *Phrase) Copy() *Phrase

Copy returns a copy of a Phrase

func (*Phrase) CopyAndAppend 

func (p *Phrase) CopyAndAppend(n *Note) *Note

CopyAndAppend makes a copy of a Note and appends it to the Phrase

func (*Phrase) CutTime 

func (p *Phrase) CutTime(fromclick, toclick Clicks) *Phrase

CutTime creates a new Phrase with notes in a given time range

func (*Phrase) Format 

func (p *Phrase) Format(f fmt.State, c rune)

Format lets you conveniently print a Phrase with fmt functions

func (*Phrase) InsertNoLock 

func (p *Phrase) InsertNoLock(note *Note) *Phrase

InsertNoLock adds a Note to a Phrase

func (*Phrase) InsertNote 

func (p *Phrase) InsertNote(nt *Note) *Phrase

InsertNote inserts a note into a Phrase NOTE: it's assumed that the Phrase is already locked for writing.

func (*Phrase) Legato 

func (p *Phrase) Legato() *Phrase

Legato extends the duration of each note to abutt the start of the next note. Doesn't modify the duration of the last note.

func (*Phrase) Lock 

func (p *Phrase) Lock()

Lock for writing

func (*Phrase) LowestPitch 

func (p *Phrase) LowestPitch(delta int) uint8

LowestPitch returns the lowest pitch in a Phrase

func (*Phrase) Merge 

func (p *Phrase) Merge(fromPhrase *Phrase) *Phrase

Merge merges a second Phrase into a Phrase NOTE: we get a Write lock on the Phrase, since we're actually changing it.

func (*Phrase) NextTime 

func (p *Phrase) NextTime(st Clicks) Clicks

NextTime returns the time of the next note AFTER time st. If there are no notes after it, returns -1.

func (*Phrase) NumNotes 

func (p *Phrase) NumNotes() int

NumNotes returns the number of notes in a Phrase

func (*Phrase) RLock 

func (p *Phrase) RLock()

RLock for reading

func (*Phrase) RUnlock 

func (p *Phrase) RUnlock()

RUnlock for reading

func (*Phrase) ResetLengthNoLock 

func (p *Phrase) ResetLengthNoLock()

ResetLengthNoLock sets the length of a Phrase to the end of the lastnote

func (*Phrase) Step 

func (p *Phrase) Step(stepsize Clicks) *Phrase

Step returns a stepped version of the Phrase.

func (*Phrase) ToString 

func (p *Phrase) ToString() string

ToString returns a human-readable version of a Phrase

func (*Phrase) Transpose 

func (p *Phrase) Transpose(delta int) *Phrase

Transpose returns a Phrase whose pitch is transposed.

func (*Phrase) Unlock 

func (p *Phrase) Unlock()

Unlock for writing

type PlaybackEvent 

type PlaybackEvent struct {
	// contains filtered or unexported fields
}

PlaybackEvent is a time-tagged cursor or API event

type Recording 

type Recording struct {
	// contains filtered or unexported fields
}

Recording xxx

type Remote 

type Remote struct {
	// contains filtered or unexported fields
}

Remote represents a remote Viz thing, either an engine or hub

func NewRemote 

func NewRemote(addr string) *Remote

NewRemote returns a Remote for the given address

func (*Remote) CheckConnection 

func (r *Remote) CheckConnection() bool

CheckConnection returns true if the connection is respondig

func (*Remote) Close 

func (r *Remote) Close() error

Close xxx

func (*Remote) DoLogin 

func (r *Remote) DoLogin(user, password string) (err error)

DoLogin logs in on a websocket connection

func (*Remote) InvokeAPI 

func (r *Remote) InvokeAPI(method string, params string) (result interface{}, err error)

InvokeAPI does an API on an already-connected websocket

func (*Remote) SetUser 

func (r *Remote) SetUser(user, password string)

SetUser sets login info for the connection

type Scale 

type Scale struct {
	// contains filtered or unexported fields
}

Scale says whether a pitch is in a scale

func GetScale 

func GetScale(name string) *Scale

GetScale xxx

func (*Scale) ClosestTo 

func (s *Scale) ClosestTo(pitch uint8) uint8

ClosestTo xxx

type Step 

type Step struct {
	Events []*LoopEvent
}

Step is one step of one loop in the looper

type StepLoop 

type StepLoop struct {
	CurrentStep Clicks
	Length      Clicks
	Steps       []*Step
}

StepLoop is one loop

func NewLoop 

func NewLoop(nclicks Clicks) *StepLoop

NewLoop allocates and adds a new steploop

func (*StepLoop) AddToStep 

func (loop *StepLoop) AddToStep(ce *CursorEvent, stepnum Clicks, debug bool)

AddToStep adds a StepItem to the loop at the current step

func (*StepLoop) Clear 

func (loop *StepLoop) Clear()

Clear removes everything from Loop

func (*StepLoop) ClearID 

func (loop *StepLoop) ClearID(id string)

ClearID removes all cursorEvents with a given id

func (*StepLoop) SetLength 

func (loop *StepLoop) SetLength(nclicks Clicks)

SetLength changesthe length of a loop

type TuioCursor 

type TuioCursor struct {
	// contains filtered or unexported fields
}

TuioCursor is a TUIO cursor, the main purpose being to know when it hasn't been seen for a while, to generate an UP event

type Venue 

type Venue struct {
	// contains filtered or unexported fields
}

Venue xxx

func CreateVenue 

func CreateVenue(vname string, ename string) (*Venue, error)

CreateVenue xxx

func LoadVenue 

func LoadVenue(vname string) (*Venue, error)

LoadVenue xxx

func (*Venue) Dir 

func (v *Venue) Dir() string

Dir xxx

func (*Venue) FeedMeEventsLive 

func (v *Venue) FeedMeEventsLive(callback VenueEventCallback)

FeedMeEventsLive xxx

func (*Venue) Name 

func (v *Venue) Name() string

Name xxx

type VenueEventCallback 

type VenueEventCallback func(n *Note)

VenueEventCallback xxx

type VizColor 

type VizColor struct {
	// contains filtered or unexported fields
}

VizColor xxx

func ColorFromHLS 

func ColorFromHLS(hue, luminance, saturation float32) VizColor

ColorFromHLS creates a color from hue, luminance, and saturation

func ColorFromRGB 

func ColorFromRGB(red, green, blue float32) VizColor

ColorFromRGB creates a VizColor from red, green, blue

type VizEvent 

type VizEvent struct {
	// The EventSource is where the event originally came from
	EventSource string                 `json:"source"`
	EventType   string                 `json:"eventtype"`
	EventVal    map[string]interface{} `json:"eventval"`
}

VizEvent xxx

func NewCursorVizEvent 

func NewCursorVizEvent(source string, ce *CursorEvent) VizEvent

NewCursorVizEvent xxx

func NewMidiInputVizEvent 

func NewMidiInputVizEvent(source string, midievent MidiDeviceEvent) VizEvent

NewMidiInputVizEvent xxx

type VizNats 

type VizNats struct {
	// contains filtered or unexported fields
}

VizNats xxx 

var TheVizNats *VizNats

TheVizNats is the only one

func NewVizNats 

func NewVizNats() *VizNats

NewVizNats xxx

func (*VizNats) Connect 

func (vn *VizNats) Connect() error

Connect xxx

func (*VizNats) Publish 

func (vn *VizNats) Publish(subj string, msg string) error

Publish xxx

func (*VizNats) PublishRequest 

func (vn *VizNats) PublishRequest(subj string, msg string) error

PublishRequest xxx

func (*VizNats) Subscribe 

func (vn *VizNats) Subscribe(subj string, callback nats.MsgHandler) error

Subscribe xxx

type VizOsc 

type VizOsc struct {
	// contains filtered or unexported fields
}

VizOsc is a router for devices and engines

func NewVizOSC 

func NewVizOSC() *VizOsc

NewVizOSC xxx

func (*VizOsc) Start 

func (vo *VizOsc) Start()

Start xxx

func (*VizOsc) Time 

func (vo *VizOsc) Time() time.Time

Time returns the current time

type VizUser 

type VizUser struct {
	// contains filtered or unexported fields
}

VizUser xxx

func (*VizUser) GetEmail 

func (u *VizUser) GetEmail() string

GetEmail xxx

func (*VizUser) GetID 

func (u *VizUser) GetID() interface{}

GetID xxx

func (*VizUser) GetPasswordHash 

func (u *VizUser) GetPasswordHash() []byte

GetPasswordHash xxx

func (*VizUser) GetPasswordToken 

func (u *VizUser) GetPasswordToken() (string, time.Time)

GetPasswordToken xxx

func (*VizUser) GetRoles 

func (u *VizUser) GetRoles() []string

GetRoles xxx

func (*VizUser) GetState 

func (u *VizUser) GetState() int

GetState xxx

func (*VizUser) GetVerificationID 

func (u *VizUser) GetVerificationID() (string, time.Time)

GetVerificationID xxx

func (*VizUser) SetEmail 

func (u *VizUser) SetEmail(email string)

SetEmail xxx

func (*VizUser) SetID 

func (u *VizUser) SetID(id interface{})

SetID xxx

func (*VizUser) SetPasswordHash 

func (u *VizUser) SetPasswordHash(hash []byte)

SetPasswordHash xxx

func (*VizUser) SetPasswordToken 

func (u *VizUser) SetPasswordToken(id string, created time.Time)

SetPasswordToken xxx

func (*VizUser) SetState 

func (u *VizUser) SetState(state int)

SetState xxx

func (*VizUser) SetVerificationID 

func (u *VizUser) SetVerificationID(id string, created time.Time)

SetVerificationID xxx

type VizUsersDb 

type VizUsersDb struct {
	// contains filtered or unexported fields
}

VizUsersDb xxx

func NewVizUsersDb 

func NewVizUsersDb() (*VizUsersDb, error)

NewVizUsersDb xxx

func (*VizUsersDb) Num 

func (vu *VizUsersDb) Num() int

Num is the number of users in the database

func (*VizUsersDb) Users 

func (vu *VizUsersDb) Users() map[string]users.User

Users xxx

func (*VizUsersDb) VizLoadUserByEmail 

func (vu *VizUsersDb) VizLoadUserByEmail(email string) (users.User, error)

VizLoadUserByEmail xxx

func (*VizUsersDb) VizLoadUserByPasswordToken 

func (vu *VizUsersDb) VizLoadUserByPasswordToken(token string) (users.User, error)

VizLoadUserByPasswordToken xxx

func (*VizUsersDb) VizLoadUserByVerificationID 

func (vu *VizUsersDb) VizLoadUserByVerificationID(id string) (users.User, error)

VizLoadUserByVerificationID xxx

func (*VizUsersDb) VizSaveNewUserAtomic 

func (vu *VizUsersDb) VizSaveNewUserAtomic(user users.User) (users.User, error)

VizSaveNewUserAtomic xxx

func (*VizUsersDb) VizThrottleLogin 

func (vu *VizUsersDb) VizThrottleLogin(email string)

VizThrottleLogin xxx

func (*VizUsersDb) VizThrottleVerification 

func (vu *VizUsersDb) VizThrottleVerification()

VizThrottleVerification xxx

func (*VizUsersDb) VizUpdateUser 

func (vu *VizUsersDb) VizUpdateUser(user users.User) error

VizUpdateUser xxx

func (*VizUsersDb) WriteUsers 

func (vu *VizUsersDb) WriteUsers() error

WriteUsers writes out all users data. Assumes the caller has done the mutex.

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