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/*
Copyright (C) 2019 Leo Tenenbaum
This file is part of AutoVCV.
AutoVCV is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
AutoVCV is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with AutoVCV. If not, see <https://www.gnu.org/licenses/>.
*/
package vcv
import (
"io"
"fmt"
)
type ModuleInfo struct {
Inputs int
Outputs int
Params int
}
type Module struct {
Model string
Params []float64
X int // x position
Y int
}
type Wire struct {
OutModule int
OutId int
InModule int
InId int
Color string // in hex notation
}
type VCVFile struct {
Modules []Module
Wires []Wire
}
type ParamBounds struct {
Min float64
Max float64
}
var Modules = map[string]ModuleInfo{
"VCO": {4, 4, 7},
"LFO": {4, 4, 7},
"VCA-1": {2, 1, 2},
"Delay": {5, 1, 4},
"AudioInterface": {2, 2 /* Only use 2 channels */, 0},
}
var ModuleParamBounds = map[string][]ParamBounds {
"VCO": {{0, 1}, {0, 1}, {-54, 54}, {-1, 1}, {0, 1}, {0, 1}, {0, 1}},
"LFO": {{0, 1}, {0, 1}, { -8, 8}, {0, 1}, {0, 1}, {0, 1}, {0, 1}},
"VCA-1": {{0, 1}, {0, 1}},
"Delay": {{0, 1}, {0, 1}, {0, 1}, {0, 1}},
}
var plugins = map[string]string {
"VCO": "Fundamental",
"LFO": "Fundamental",
"VCA-1": "Fundamental",
"Delay": "Fundamental",
}
var Versions = map[string]string {
"Core": "0.6.2c",
"Fundamental": "0.6.2",
}
func (vcv *VCVFile) NumberOfModules() int {
return len(vcv.Modules)
}
func (vcv *VCVFile) NumberOfWires() int {
return len(vcv.Wires)
}
// Adds a module with the given settings to the file
// Returns an ID used to connect modules
func (vcv *VCVFile) AddModule(model string, params []float64, x int, y int) int {
m := Module {
model, params, x, y,
}
vcv.Modules = append(vcv.Modules, m)
return len(vcv.Modules)-1
}
// Adds a wire from the module with ID to ID id2
// Returns the wire ID
func (vcv *VCVFile) AddWire(id1 int, whichOutput int, id2 int, whichInput int, color string) int {
w := Wire {
id1, whichOutput, id2, whichInput, color,
}
vcv.Wires = append(vcv.Wires, w)
return len(vcv.Wires)-1
}
// Returns the module associated with the given ID
func (vcv *VCVFile) GetModule(id int) *Module {
return &vcv.Modules[id]
}
func (vcv *VCVFile) GetWire(id int) *Wire {
return &vcv.Wires[id]
}
func (m *Module) write(out io.Writer, deviceName string) error {
if m.Model == "AudioInterface" {
_, err := fmt.Fprintf(out, `{
"plugin": "Core",
"version": "%v",
"model": "AudioInterface",
"params": [],
"data": {
"audio": {
"driver": 1,
"deviceName": "%v",
"offset": 0,
"maxChannels": 8,
"sampleRate": 44100,
"blockSize": 256
}
},
"pos": [
%v,
%v
]
}`, Versions["Core"], deviceName, m.X, m.Y)
return err
}
_, err := fmt.Fprintf(out, `{
"plugin": "%v",
"version": "%v",
"model": "%v",
"pos": [%v, %v],
"params": [`, plugins[m.Model], Versions[plugins[m.Model]], m.Model,
m.X, m.Y)
if err != nil { return err }
for i, param := range m.Params {
var maybeComma byte
if i == 0 {
maybeComma = ' '
} else {
maybeComma = ','
}
_, err := fmt.Fprintf(out, `%c{
"paramId": %v,
"value": %v
}`, maybeComma, i, param)
if err != nil { return err }
}
_, err = io.WriteString(out, "]}")
if err != nil { return err }
return nil
}
func (w *Wire) write(out io.Writer) error {
_, err := fmt.Fprintf(out, `{
"color": "%v",
"outputModuleId": %v,
"outputId": %v,
"inputModuleId": %v,
"inputId": %v
}`, w.Color, w.OutModule, w.OutId, w.InModule, w.InId)
return err
}
func (vcv *VCVFile) Write(out io.Writer, deviceName string) error {
_, err := fmt.Fprintf(out, `{
"version": "%v",
"modules": [`, Versions["Core"])
if err != nil { return err }
for i, module := range vcv.Modules {
if i != 0 {
_, err := io.WriteString(out, ",")
if err != nil { return err }
}
err := module.write(out, deviceName)
if err != nil { return err }
}
_, err = io.WriteString(out, `],
"wires": [`)
if (err != nil) { return err }
for i, wire := range vcv.Wires {
if i != 0 {
_, err := io.WriteString(out, ",")
if err != nil { return err }
}
err := wire.write(out)
if err != nil { return err }
}
_, err = io.WriteString(out, "]}")
return err
}
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