v1.0.18

- MIDI Program/Bank select.
- MIDI next/previous program.

CMakeLists.txt

@@ -1,10 +1,10 @@
 cmake_minimum_required(VERSION 3.16.0)
 project(pipedal 
-    VERSION 1.0.17
+    VERSION 1.0.18
     DESCRIPTION "PiPedal Guitar Effect Pedal For Raspberry Pi"
     HOMEPAGE_URL "https://rerdavies.github.io/pipedal"
 )
-set (DISPLAY_VERSION "v1.0.17")
+set (DISPLAY_VERSION "v1.0.18")
 
 set (CMAKE_INSTALL_PREFIX "/usr/")
 

LICENSE.txt

@@ -1,4 +1,4 @@
-Copyright 2021-2022 Robin Davies
+Copyright 2021-2023 Robin Davies
 
 Permission is hereby granted, free of charge, to any person obtaining 
 a copy of this software and associated documentation files (the "Software"), 

README.md

@@ -1,7 +1,7 @@
 
 <img src='docs/GithubBanner.png' width="100%" /><br/>
 
-Download: <a href='https://rerdavies.github.io/pipedal/download.html'>v1.0.17</a> 
+Download: <a href='https://rerdavies.github.io/pipedal/download.html'>v1.0.18</a> 
 
 Website: [https://rerdavies.github.io/pipedal](https://rerdavies.github.io/pipedal).
 

debian/control

@@ -9,6 +9,6 @@ Package: pipedal
 Pre-Depends: hostapd;authbind
 Priority: optional
 Section: sound
-Version: 1.0.17
+Version: 1.0.18
 Installed-Size: 15147
 

docs/Installing.md

@@ -13,14 +13,14 @@ page_icon: img/Install4.jpg
 
 Download the most recent Debian (.deb) package for your platform:
 
-- [Ubuntu/Raspberry Pi OS (64-bit) v1.0.17](https://github.com/rerdavies/pipedal/releases/download/v1.0.17/pipedal_1.0.17_arm64.deb)
+- [Ubuntu/Raspberry Pi OS (64-bit) v1.0.18](https://github.com/rerdavies/pipedal/releases/download/v1.0.18/pipedal_1.0.18_arm64.deb)
 
 Install the package by running 
 
 ```
   sudo apt update
   cd ~/Downloads  
-  sudo apt-get install ./pipedal_1.0.17_arm64.deb
+  sudo apt-get install ./pipedal_1.0.18_arm64.deb
 ```
 On Raspberry Pi OS, if you have a graphical desktop installed, you can also install the package by double-clicking on the downloaded package in the File Manager.
 

docs/download.md

@@ -4,14 +4,14 @@
 
 Download the most recent Debian (.deb) package for your platform:
 
-- [Ubuntu or Raspberry Pi OS (64-bit)](https://github.com/rerdavies/pipedal/releases/download/v1.0.17/pipedal_1.0.17_arm64.deb) v1.0.17
+- [Ubuntu or Raspberry Pi OS (64-bit)](https://github.com/rerdavies/pipedal/releases/download/v1.0.18/pipedal_1.0.18_arm64.deb) v1.0.18
 
 Install the package by running 
 
 ```
   sudo apt update
   cd ~/Downloads  
-  sudo apt-get install ./pipedal_1.0.17_arm64.deb
+  sudo apt-get install ./pipedal_1.0.18_arm64.deb
 ```
 
 Follow the instructions in [_Configuring PiPedal After Installation_](https://rerdavies.github.io/pipedal/Configuring.html) to complete the installation.

docs/index.md

@@ -1,7 +1,7 @@
 
 
 <img src="GithubBanner.png" width="100%"/>
-<a href="Installing.html"><i>v1.0.17</i></a>
+<a href="Installing.html"><i>v1.0.18</i></a>
 
 &nbsp;
 

react/src/MidiBinding.tsx

@@ -31,6 +31,11 @@ export default class MidiBinding {
         this.switchControlType = input.switchControlType;
         return this;
     }
+    static systemBinding(symbol: string): MidiBinding {
+        let result = new MidiBinding();
+        result.symbol = symbol;
+        return result;
+    }
     static deserialize_array(input: any): MidiBinding[] {
         let result: MidiBinding[] = [];
         for (let i = 0; i < input.length; ++i)

react/src/MidiBindingView.tsx

@@ -257,7 +257,7 @@ const MidiBindingView =
                                         onChange={(e, extra) => this.handleLatchControlTypeChange(e, extra)}
                                         value={midiBinding.switchControlType}
                                     >
-                                        <MenuItem value={MidiBinding.LATCH_CONTROL_TYPE}>Latch</MenuItem>
+                                        <MenuItem value={MidiBinding.LATCH_CONTROL_TYPE}>Toggle</MenuItem>
                                         <MenuItem value={MidiBinding.MOMENTARY_CONTROL_TYPE}>Momentary</MenuItem>
                                     </Select>
                                 </div>

react/src/PiPedalModel.tsx

@@ -339,6 +339,7 @@ export interface PiPedalModel {
     favorites: ObservableProperty<FavoritesList>;
 
     presets: ObservableProperty<PresetIndex>;
+    systemMidiBindings: ObservableProperty<MidiBinding[]>;
 
 
     zoomedUiControl: ObservableProperty<ZoomedControlInfo | undefined>;
@@ -409,6 +410,8 @@ export interface PiPedalModel {
     updatePluginPresets(uri: string, presets: PluginUiPresets): Promise<void>;
     duplicatePluginPreset(uri: string, instanceId: number): Promise<number>;
 
+    setSystemMidiBinding(instanceId: number, midiBinding: MidiBinding): void;
+
     shutdown(): Promise<void>;
     restart(): Promise<void>;
 
@@ -495,7 +498,13 @@ class PiPedalModelImpl implements PiPedalModel {
         (
             new PresetIndex()
         );
-
+    systemMidiBindings: ObservableProperty<MidiBinding[]> = new ObservableProperty<MidiBinding[]>
+        (
+            [
+                MidiBinding.systemBinding("prevProgram"),
+                MidiBinding.systemBinding("nextProgram")
+            ]
+        );
     zoomedUiControl: ObservableProperty<ZoomedControlInfo | undefined> = new ObservableProperty<ZoomedControlInfo | undefined>(undefined);
 
     svgImgUrl(svgImage: string): string {
@@ -682,7 +691,10 @@ class PiPedalModelImpl implements PiPedalModel {
             if (header.replyTo) {
                 this.webSocket?.reply(header.replyTo, "onVuUpdate", true);
             }
-
+        } else if (message === "onSystemMidiBindingsChanged")
+        {
+            let bindings = MidiBinding.deserialize_array(body);
+            this.systemMidiBindings.set(bindings);
         } else {
             throw new PiPedalStateError("Unrecognized message received from server: " + message);
         }
@@ -815,6 +827,12 @@ class PiPedalModelImpl implements PiPedalModel {
             .then((data) => {
                 this.favorites.set(data);
 
+                return this.getWebSocket().request<MidiBinding[]>("getSystemMidiBindings");
+            })
+            .then((data)=> {
+                let bindings = MidiBinding.deserialize_array(data);
+                this.systemMidiBindings.set(bindings);
+
                 this.setState(State.Ready);
             })
             .catch((what) => {
@@ -977,6 +995,12 @@ class PiPedalModelImpl implements PiPedalModel {
                     .then((data) => {
                         this.favorites.set(data);
 
+                        return this.getWebSocket().request<MidiBinding[]>("getSystemMidiBindings");
+                    })
+                    .then((data)=> {
+                        let bindings = MidiBinding.deserialize_array(data);
+                        this.systemMidiBindings.set(bindings);
+        
                         if (this.webSocket) {
                             // MUST not allow reconnect until at least one complete load has finished.
                             this.webSocket.canReconnect = true;
@@ -1837,8 +1861,7 @@ class PiPedalModelImpl implements PiPedalModel {
             });
     }
 
-    updateVst3State(pedalBoard: PedalBoard)
-    {
+    updateVst3State(pedalBoard: PedalBoard) {
         // let it = pedalBoard.itemsGenerator();
         // while (true) {
         //     let v = it.next();
@@ -1862,6 +1885,23 @@ class PiPedalModelImpl implements PiPedalModel {
 
         }
     }
+    setSystemMidiBinding(instanceId: number, midiBinding: MidiBinding): void {
+        let currentBindings = this.systemMidiBindings.get();
+
+        let result: MidiBinding[] = [];
+
+        for (var binding of currentBindings)
+        {
+            if (binding.symbol === midiBinding.symbol)
+            {
+                result.push(midiBinding);
+            } else {
+                result.push(binding);
+            }
+        }
+        this.systemMidiBindings.set(result);
+        this.webSocket?.send("setSystemMidiBindings",result);
+    }
     midiListeners: MidiEventListener[] = [];
     atomOutputListeners: AtomOutputListener[] = [];
 
@@ -1918,8 +1958,7 @@ class PiPedalModelImpl implements PiPedalModel {
                 break;
             }
         }
-        if (!found)
-        {
+        if (!found) {
             console.log('cancelListenForMidiEvent: event not found.');
         }
         this.webSocket?.send("cancelListenForMidiEvent", listenHandle._handle);
@@ -2183,19 +2222,14 @@ class PiPedalModelImpl implements PiPedalModel {
     }
     zoomUiControl(sourceElement: HTMLElement, instanceId: number, uiControl: UiControl): void {
         let name = uiControl.name;
-        if (uiControl.port_group !== "")
-        {
+        if (uiControl.port_group !== "") {
             let pedalboard = this.pedalBoard.get();
-            if (pedalboard)
-            {
+            if (pedalboard) {
                 let plugin = pedalboard.getItem(instanceId);
                 let uiPlugin = this.getUiPlugin(plugin.uri);
-                if (uiPlugin)
-                {
-                    for (let i = 0; i < uiPlugin.port_groups.length; ++i)
-                    {
-                        if (uiPlugin.port_groups[i].symbol === uiControl.port_group)
-                        {
+                if (uiPlugin) {
+                    for (let i = 0; i < uiPlugin.port_groups.length; ++i) {
+                        if (uiPlugin.port_groups[i].symbol === uiControl.port_group) {
                             name = uiPlugin.port_groups[i].name + " / " + name;
                             break;
                         }
@@ -2205,8 +2239,7 @@ class PiPedalModelImpl implements PiPedalModel {
         }
         this.zoomedUiControl.set({ source: sourceElement, name: name, instanceId: instanceId, uiControl: uiControl });
     }
-    onPreviousZoomedControl() : void
-    {
+    onPreviousZoomedControl(): void {
         let currentUiControl = this.zoomedUiControl.get();
         if (!currentUiControl) return;
 
@@ -2222,8 +2255,7 @@ class PiPedalModelImpl implements PiPedalModel {
 
         let i = 0;
         let ix = -1;
-        for (i = 0; i < uiPlugin.controls.length; ++i)
-        {
+        for (i = 0; i < uiPlugin.controls.length; ++i) {
             if (uiPlugin.controls[i].symbol === currentSymbol) {
                 ix = i;
                 break;
@@ -2236,8 +2268,7 @@ class PiPedalModelImpl implements PiPedalModel {
 
         this.zoomUiControl(currentUiControl.source, currentUiControl.instanceId, uiPlugin.controls[ix]);
     }
-    onNextZoomedControl() : void
-    {
+    onNextZoomedControl(): void {
         let currentUiControl = this.zoomedUiControl.get();
         if (!currentUiControl) return;
 
@@ -2253,8 +2284,7 @@ class PiPedalModelImpl implements PiPedalModel {
 
         let i = 0;
         let ix = -1;
-        for (i = 0; i < uiPlugin.controls.length; ++i)
-        {
+        for (i = 0; i < uiPlugin.controls.length; ++i) {
             if (uiPlugin.controls[i].symbol === currentSymbol) {
                 ix = i;
                 break;

react/src/SettingsDialog.tsx

@@ -44,6 +44,7 @@ import WifiDirectConfigDialog from './WifiDirectConfigDialog';
 import DialogEx from './DialogEx'
 import GovernorSettings from './GovernorSettings';
 import { AlsaMidiDeviceInfo } from './AlsaMidiDeviceInfo';
+import SystemMidiBindingsDialog from './SystemMidiBindingsDialog';
 
 import Slide, { SlideProps } from '@mui/material/Slide';
 import { createStyles, Theme } from '@mui/material/styles';
@@ -84,6 +85,7 @@ interface SettingsDialogState {
     isAndroidHosted: boolean;
     showRestartOkDialog: boolean;
     showShutdownOkDialog: boolean;
+    showSystemMidiBindingsDialog: boolean;
 };
 
 
@@ -182,6 +184,7 @@ const SettingsDialog = withStyles(styles, { withTheme: true })(
                 restarting: false,
                 showShutdownOkDialog: false,
                 showRestartOkDialog: false,
+                showSystemMidiBindingsDialog: false,
                 isAndroidHosted: this.model.isAndroidHosted()
 
 
@@ -376,6 +379,12 @@ const SettingsDialog = withStyles(styles, { withTheme: true })(
                 showMidiSelectDialog: true
             })
         }
+        handleMidiMessageSettings() {
+            this.setState({
+                showSystemMidiBindingsDialog: true
+            });
+
+        }
         handleJackServerSettings() {
             this.setState({
                 showJackServerSettingsDialog: true,
@@ -634,6 +643,14 @@ const SettingsDialog = withStyles(styles, { withTheme: true })(
                                             <Typography className={classes.secondaryItem} display="block" variant="caption" color="textSecondary" noWrap>{this.midiSummary()}</Typography>
                                         </div>
                                     </ButtonBase>
+                                    <ButtonBase className={classes.setting} disabled={!isConfigValid} onClick={() => this.handleMidiMessageSettings()}  >
+                                        <SelectHoverBackground selected={false} showHover={true} />
+                                        <div style={{ width: "100%" }}>
+                                            <Typography className={classes.primaryItem} display="block" variant="body2" noWrap>System MIDI Bindings</Typography>
+                                            
+                                        </div>
+                                    </ButtonBase>
+
                                 </div>
                             </div>
                             <Divider />
@@ -840,6 +857,10 @@ const SettingsDialog = withStyles(styles, { withTheme: true })(
                         onOk={() => { this.setState({ showShutdownOkDialog: false }); this.handleShutdownOk(); }}
                         onClose={() => { this.setState({ showShutdownOkDialog: false }); }}
                     />
+                    <SystemMidiBindingsDialog
+                        open={this.state.showSystemMidiBindingsDialog}
+                        onClose={()=> { this.setState({showSystemMidiBindingsDialog: false});}}
+                        />
                 </DialogEx >
 
             );

react/src/SystemMidiBindingView.tsx

@@ -0,0 +1,218 @@
+/*
+ * MIT License
+ * 
+ * Copyright (c) 2022-2023 Robin E. R. Davies
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+
+import { Component } from 'react';
+import { PiPedalModel, PiPedalModelFactory } from './PiPedalModel';
+import { Theme } from '@mui/material/styles';
+import { WithStyles } from '@mui/styles';
+import withStyles from '@mui/styles/withStyles';
+import createStyles from '@mui/styles/createStyles';
+import MenuItem from '@mui/material/MenuItem';
+import Select from '@mui/material/Select';
+import MidiBinding from './MidiBinding';
+import Utility from './Utility';
+import MicNoneOutlinedIcon from '@mui/icons-material/MicNoneOutlined';
+import MicOutlinedIcon from '@mui/icons-material/MicOutlined';
+import IconButton from '@mui/material/IconButton';
+
+
+
+const styles = (theme: Theme) => createStyles({
+    controlDiv: { flex: "0 0 auto", marginRight: 12, verticalAlign: "center", height: 48, paddingTop: 8, paddingBottom: 8 },
+    controlDiv2: {
+        flex: "0 0 auto", marginRight: 12, verticalAlign: "center",
+        height: 48, paddingTop: 0, paddingBottom: 0, whiteSpace: "nowrap"
+    }
+});
+
+interface SystemMidiBindingViewProps extends WithStyles<typeof styles> {
+    instanceId: number;
+    listen: boolean;
+    midiBinding: MidiBinding;
+    onChange: (instanceId: number, newBinding: MidiBinding) => void;
+    onListen: (instanceId: number, key: string, listenForControl: boolean) => void;
+}
+
+
+interface SystemMidiBindingViewState {
+}
+
+
+
+
+const SystemMidiBindingView =
+    withStyles(styles, { withTheme: true })(
+        class extends Component<SystemMidiBindingViewProps, SystemMidiBindingViewState> {
+
+            model: PiPedalModel;
+
+            constructor(props: SystemMidiBindingViewProps) {
+                super(props);
+                this.model = PiPedalModelFactory.getInstance();
+                this.state = {
+                };
+            }
+
+            handleTypeChange(e: any, extra: any) {
+                let newValue = parseInt(e.target.value);
+                let newBinding = this.props.midiBinding.clone();
+                newBinding.bindingType = newValue;
+                this.props.onChange(this.props.instanceId, newBinding);
+            }
+            handleNoteChange(e: any, extra: any) {
+                let newValue = parseInt(e.target.value);
+                let newBinding = this.props.midiBinding.clone();
+                newBinding.note = newValue;
+                this.props.onChange(this.props.instanceId, newBinding);
+            }
+            handleControlChange(e: any, extra: any) {
+                let newValue = parseInt(e.target.value);
+                let newBinding = this.props.midiBinding.clone();
+                newBinding.control = newValue;
+                this.props.onChange(this.props.instanceId, newBinding);
+            }
+            handleLatchControlTypeChange(e: any, extra: any) {
+                let newValue = parseInt(e.target.value);
+                let newBinding = this.props.midiBinding.clone();
+                newBinding.switchControlType = newValue;
+                this.props.onChange(this.props.instanceId, newBinding);
+            }
+            handleLinearControlTypeChange(e: any, extra: any) {
+                let newValue = parseInt(e.target.value);
+                let newBinding = this.props.midiBinding.clone();
+                newBinding.linearControlType = newValue;
+                this.props.onChange(this.props.instanceId, newBinding);
+            }
+            handleMinChange(value: number): void {
+                let newBinding = this.props.midiBinding.clone();
+                newBinding.minValue = value;
+                this.props.onChange(this.props.instanceId, newBinding);
+            }
+            handleMaxChange(value: number): void {
+                let newBinding = this.props.midiBinding.clone();
+                newBinding.maxValue = value;
+                this.props.onChange(this.props.instanceId, newBinding);
+            }
+            handleScaleChange(value: number): void {
+                let newBinding = this.props.midiBinding.clone();
+                newBinding.rotaryScale = value;
+                this.props.onChange(this.props.instanceId, newBinding);
+            }
+
+
+            generateMidiSelects(): React.ReactNode[] {
+                let result: React.ReactNode[] = [];
+
+                for (let i = 0; i < 127; ++i) {
+                    result.push(
+                        <MenuItem value={i}>{Utility.midiNoteName(i)}</MenuItem>
+                    )
+                }
+
+                return result;
+            }
+            generateControlSelects(): React.ReactNode[] {
+
+                return Utility.validMidiControllers.map((control) => (
+                    <MenuItem key={control.value} value={control.value}>{control.displayName}</MenuItem>
+                )
+                );
+            }
+
+
+            render() {
+                let classes = this.props.classes;
+                let midiBinding = this.props.midiBinding;
+
+                return (
+                    <div style={{ display: "flex", flexDirection: "row", flexWrap: "wrap", justifyContent: "left", alignItems: "center", minHeight: 48 }}>
+                        <div className={classes.controlDiv} >
+                            <Select variant="standard"
+                                style={{ width: 80, }}
+                                onChange={(e, extra) => this.handleTypeChange(e, extra)}
+                                value={midiBinding.bindingType}
+                            >
+                                <MenuItem value={0}>None</MenuItem>
+                                <MenuItem value={1}>Note</MenuItem>
+                                <MenuItem value={2}>Control</MenuItem>
+                            </Select>
+                        </div>
+                        {
+                            (midiBinding.bindingType === MidiBinding.BINDING_TYPE_NOTE) &&
+                            (
+                                <div className={classes.controlDiv} >
+                                    <Select variant="standard"
+                                        style={{ width: 80, verticalAlign: 'center' }}
+                                        onChange={(e, extra) => this.handleNoteChange(e, extra)}
+                                        value={midiBinding.note}
+
+                                    >
+                                        {
+                                            this.generateMidiSelects()
+                                        }
+                                    </Select>
+                                </div>
+                            )
+                        }
+                        {
+                            (midiBinding.bindingType === MidiBinding.BINDING_TYPE_CONTROL) &&
+                            (
+                                <div className={classes.controlDiv} >
+
+                                    <Select variant="standard"
+                                        style={{ width: 80 }}
+                                        onChange={(e, extra) => this.handleControlChange(e, extra)}
+                                        value={midiBinding.control}
+                                        renderValue={(value) => { return "CC-" + value }}
+                                    >
+                                        {
+                                            this.generateControlSelects()
+                                        }
+                                    </Select>
+                                </div>
+                            )
+                        }
+                        <IconButton
+                            onClick={() => {
+                                if (this.props.listen) {
+                                    this.props.onListen(-2, "", false)
+                                } else {
+                                    this.props.onListen(this.props.instanceId, this.props.midiBinding.symbol, false)
+                                }
+                            }}
+                            size="large">
+                            {this.props.listen ? (
+                                <MicOutlinedIcon />
+                            ) : (
+                                <MicNoneOutlinedIcon />
+                            )}
+                        </IconButton>
+                    </div>
+                );
+
+            }
+        });
+
+export default SystemMidiBindingView;

react/src/SystemMidiBindingsDialog.tsx

@@ -0,0 +1,338 @@
+/*
+ * MIT License
+ * 
+ * Copyright (c) 2022-2023 Robin E. R. Davies
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+
+import React, { SyntheticEvent } from 'react';
+import DialogEx from './DialogEx';
+import ResizeResponsiveComponent from './ResizeResponsiveComponent';
+import { PiPedalModel, PiPedalModelFactory, ListenHandle } from './PiPedalModel';
+import Typography from '@mui/material/Typography';
+import { Theme } from '@mui/material/styles';
+import { WithStyles } from '@mui/styles';
+import createStyles from '@mui/styles/createStyles';
+import withStyles from '@mui/styles/withStyles';
+import AppBar from '@mui/material/AppBar';
+import Toolbar from '@mui/material/Toolbar';
+import ArrowBackIcon from '@mui/icons-material/ArrowBack';
+import IconButton from '@mui/material/IconButton';
+import MidiBinding from './MidiBinding';
+import SystemMidiBindingView from './SystemMidiBindingView';
+import Snackbar from '@mui/material/Snackbar';
+
+const styles = (theme: Theme) => createStyles({
+    dialogAppBar: {
+        position: 'relative',
+        top: 0, left: 0
+    },
+    dialogTitle: {
+        marginLeft: theme.spacing(2),
+        flex: "1 1 auto",
+    },
+    pluginTable: {
+        border: "collapse",
+        width: "100%",
+
+    },
+    pluginHead: {
+        borderTop: "1pt #DDD solid", paddingLeft: 22, paddingRight: 22
+    },
+    bindingTd: {
+        verticalAlign: "top",
+        paddingLeft: 12, paddingBottom: 8
+    },
+    nameTd: {
+        paddingLeft: 16,
+        verticalAlign: "top",
+        paddingTop: 12
+    },
+});
+
+
+export interface SystemMidiBindingDialogProps extends WithStyles<typeof styles> {
+    open: boolean,
+    onClose: () => void
+}
+
+class BindingEntry {
+    constructor(
+        displayName: string,
+        instanceId: number,
+        midiBinding: MidiBinding,
+    ) {
+        this.displayName = displayName;
+        this.instanceId = instanceId;
+        this.midiBinding = midiBinding;
+    }
+    displayName: string;
+    instanceId: number;
+    midiBinding: MidiBinding;
+}
+
+export interface SystemMidiBindingDialogState {
+    listenInstanceId: number;
+    listenSymbol: string;
+    listenSnackbarOpen: boolean;
+    systemMidiBindings: BindingEntry[];
+
+}
+
+export const SystemMidiBindingDialog =
+    withStyles(styles, { withTheme: true })(
+        class extends ResizeResponsiveComponent<SystemMidiBindingDialogProps, SystemMidiBindingDialogState> {
+
+            model: PiPedalModel;
+
+            constructor(props: SystemMidiBindingDialogProps) {
+                super(props);
+                this.model = PiPedalModelFactory.getInstance();
+                this.state = {
+                    listenInstanceId: -2,
+                    listenSymbol: "",
+                    listenSnackbarOpen: false,
+                    systemMidiBindings: this.createBindings()
+                };
+                this.handleClose = this.handleClose.bind(this);
+                this.onMidiBindingsChanged = this.onMidiBindingsChanged.bind(this);
+            }
+
+            createBindings(): BindingEntry[] {
+                let result: BindingEntry[] = [];
+                for (var item of this.model.systemMidiBindings.get())
+                {
+                    let displayName  = "";
+                    let instanceId = -1;
+
+                    if (item.symbol === "prevProgram")
+                    {
+                        displayName = "Previous Preset";
+                        instanceId = 1;
+                    } else if (item.symbol === "nextProgram")
+                    {
+                        displayName = "Next Preset";
+                        instanceId = 2;
+                    }
+                    if (instanceId !== -1)
+                    {
+                        result.push(new BindingEntry(displayName,instanceId,item));
+                    }
+                }
+                return result;
+            }
+            mounted: boolean = false;
+
+            hasHooks: boolean = false;
+
+            handleClose() {
+                this.cancelListenForControl();
+                this.props.onClose();
+            }
+
+            listenTimeoutHandle?: NodeJS.Timeout;
+
+            listenHandle?: ListenHandle;
+
+            cancelListenForControl() {
+                if (this.listenTimeoutHandle) {
+                    clearTimeout(this.listenTimeoutHandle);
+                    this.listenTimeoutHandle = undefined;
+                }
+                if (this.listenHandle)
+                {
+                    this.model.cancelListenForMidiEvent(this.listenHandle)
+                    this.listenHandle = undefined;
+                }
+
+                this.setState({ listenInstanceId: -2, listenSymbol: "" });
+
+            }
+
+            handleListenSucceeded(instanceId: number, symbol: string, isNote: boolean, noteOrControl: number)
+            {
+                this.cancelListenForControl();
+
+                for (var binding of this.state.systemMidiBindings)
+                {
+                    if (binding.instanceId === instanceId)
+                    {
+                        let newBinding = binding.midiBinding.clone();
+
+                        if (isNote) {
+                            newBinding.bindingType = MidiBinding.BINDING_TYPE_NOTE;
+                            newBinding.note = noteOrControl;
+                        } else {
+                            newBinding.bindingType = MidiBinding.BINDING_TYPE_CONTROL;
+                            newBinding.control = noteOrControl;
+                        }
+        
+                        this.model.setSystemMidiBinding(instanceId,newBinding);
+                        return;
+                    }
+                }
+            }
+
+
+            handleListenForControl(instanceId: number, symbol: string, listenForControl: boolean): void {
+                this.cancelListenForControl();
+                this.setState({ listenInstanceId: instanceId, listenSymbol: symbol, listenSnackbarOpen: true });
+                this.listenTimeoutHandle = setTimeout(() => {
+                    this.cancelListenForControl();
+                }, 8000);
+
+                this.listenHandle = this.model.listenForMidiEvent(listenForControl,
+                    (isNote: boolean, noteOrControl: number) => {
+                        this.handleListenSucceeded(instanceId,symbol,isNote, noteOrControl);
+                    });
+                
+
+
+            }
+
+            onWindowSizeChanged(width: number, height: number): void {
+            }
+
+            onMidiBindingsChanged() {
+                this.setState({systemMidiBindings: this.createBindings()});
+            }
+
+            componentDidMount() {
+                super.componentDidMount();
+                this.mounted = true;
+
+                this.model.systemMidiBindings.addOnChangedHandler(this.onMidiBindingsChanged);
+                this.onMidiBindingsChanged();
+            }
+            componentWillUnmount() {
+                super.componentWillUnmount();
+
+                this.mounted = false;
+                this.model.systemMidiBindings.removeOnChangedHandler(this.onMidiBindingsChanged);
+            }
+
+            componentDidUpdate() {
+            }
+            handleItemChanged(instanceId: number, newBinding: MidiBinding) {
+                this.model.setSystemMidiBinding(instanceId, newBinding);
+            }
+            generateTable(): React.ReactNode[] {
+                let classes = this.props.classes;
+                let result: React.ReactNode[] = [];
+
+                let items = this.state.systemMidiBindings;
+                
+                for (var item of items) {
+                    result.push(
+                        <tr key={item.instanceId}>
+                            <td className={classes.nameTd}>
+                                <Typography noWrap style={{ verticalAlign: "center", height: 48 }}>
+                                    {item.displayName}
+                                </Typography>
+                            </td>
+                            <td className={classes.bindingTd}>
+                                <SystemMidiBindingView instanceId={item.instanceId} midiBinding={item.midiBinding}
+                                    onListen={(instanceId: number, symbol: string, listenForControl: boolean) => {
+                                        if (instanceId === -2)
+                                        {
+                                            this.cancelListenForControl();
+                                        } else {
+                                            this.handleListenForControl(instanceId, symbol, listenForControl);
+                                        }
+                                    }}
+                                    listen={item.instanceId === this.state.listenInstanceId && this.state.listenSymbol === item.midiBinding.symbol}
+                                    onChange={(instanceId: number, newItem: MidiBinding) => this.handleItemChanged(instanceId, newItem)}
+                                />
+                            </td>
+                        </tr>
+                    );
+                }
+
+
+                return result;
+            }
+
+            supressDefault(e: SyntheticEvent) {
+                //e.preventDefault();
+                //e.stopPropagation();
+            }
+
+            render() {
+                let props = this.props;
+                let { open, classes } = props;
+                if (!open) {
+                    return (<div />);
+                }
+
+                return (
+                    <DialogEx tag="SystemMidiBindingsDialog" open={open} fullWidth onClose={this.handleClose} aria-labelledby="Rename-dialog-title" 
+                        fullScreen={true} 
+                        style={{userSelect: "none"}}
+                    >
+                            <div style={{ display: "flex", flexDirection: "column", flexWrap: "nowrap", width: "100%", height: "100%", overflow: "hidden" }}>
+                                <div style={{ flex: "0 0 auto" }}>
+                                    <AppBar className={classes.dialogAppBar} >
+                                        <Toolbar>
+                                            <IconButton
+                                                edge="start"
+                                                color="inherit"
+                                                onClick={this.handleClose}
+                                                aria-label="back"
+                                                size="large">
+                                                <ArrowBackIcon />
+                                            </IconButton>
+                                            <Typography variant="h6" className={classes.dialogTitle}>
+                                                System MIDI Bindings
+                                            </Typography>
+                                        </Toolbar>
+                                    </AppBar>
+                                </div>
+                                <div style={{ overflow: "auto", flex: "1 1 auto", width: "100%" }}>
+                                    <table className={classes.pluginTable} >
+                                        <colgroup>
+                                            <col style={{ width: "auto" }} />
+                                            <col style={{ width: "100%" }} />
+                                        </colgroup>
+
+                                        <tbody>
+                                            {this.generateTable()}
+
+                                        </tbody>
+                                    </table>
+                                </div>
+                            </div>
+                            <Snackbar
+                                anchorOrigin={{
+                                    vertical: 'bottom',
+                                    horizontal: 'left',
+                                }}
+                                open={this.state.listenSnackbarOpen}
+                                autoHideDuration={1500}
+                                onClose={() => this.setState({ listenSnackbarOpen: false })}
+                                message="Listening for MIDI input"
+                            />
+                    </DialogEx >
+                );
+            }
+        });
+
+
+export default SystemMidiBindingDialog;

src/AudioHost.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2022 Robin Davies
+// Copyright (c) 2022-2023 Robin Davies
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy of
 // this software and associated documentation files (the "Software"), to deal in
@@ -17,19 +17,17 @@
 // IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 // CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-#include "JackHost.hpp"
+#include "AudioHost.hpp"
 
 #include "Lv2Log.hpp"
 
 #include "JackDriver.hpp"
 #include "AlsaDriver.hpp"
 
-
 using namespace pipedal;
 
 #include "AudioConfig.hpp"
 
-
 #include <string.h>
 #include <stdio.h>
 #include <mutex>
@@ -66,13 +64,13 @@ using namespace pipedal;
 
 const int MIDI_LV2_BUFFER_SIZE = 16 * 1024;
 
-
 static void GetCpuFrequency(uint64_t *freqMin, uint64_t *freqMax)
 {
     uint64_t fMax = 0;
     uint64_t fMin = UINT64_MAX;
     char deviceName[128];
-    try {
+    try
+    {
         for (int i = 0; true; ++i)
         {
 
@@ -84,15 +82,19 @@ static void GetCpuFrequency(uint64_t*freqMin,uint64_t*freqMax)
             }
             uint64_t freq;
             f >> freq;
-        if (!f) break;
-        if (freq < fMin) fMin = freq;
-        if (freq > fMax) fMax = freq;
+            if (!f)
+                break;
+            if (freq < fMin)
+                fMin = freq;
+            if (freq > fMax)
+                fMax = freq;
         }
-    } catch (const std::exception &)
+    }
+    catch (const std::exception &)
     {
-
     }
-    if (fMin == 0) fMax = 0;
+    if (fMin == 0)
+        fMax = 0;
     *freqMin = fMin;
     *freqMax = fMax;
 }
@@ -102,12 +104,88 @@ static std::string GetGovernor()
 }
 
 
+class SystemMidiBinding {
+private:
+    MidiBinding currentBinding;
+    bool controlState = false;
+public:
+    void SetBinding(const MidiBinding&binding) { currentBinding = binding; controlState = false; }
 
-class JackHostImpl : public JackHost, private AudioDriverHost
+    bool IsMatch(const MidiEvent&event);
+    bool IsTriggered(const MidiEvent&event);
+};
+
+bool SystemMidiBinding::IsTriggered(const MidiEvent &event)
+{
+    switch (currentBinding.bindingType())
+    {
+        case BINDING_TYPE_NOTE:
+        {
+            if (event.size != 3) return false;
+            auto  command = event.buffer[0] & 0xF0;
+            if (command != 0x90) return false; // MIDI note on
+            if (event.buffer[1] != currentBinding.note()) return false;
+            return event.buffer[2] != 0;  // note-on with velicity of zero is a note-off.
+        }
+        break;
+        case BINDING_TYPE_CONTROL:
+        {
+            if (event.size != 3) return false;
+            auto  command = event.buffer[0] & 0xF0;
+            if (command != 0xB0) return false;
+            if (event.buffer[1] != currentBinding.control()) return false;
+            bool state = event.buffer[2] >= 0x64;
+            if (state != this->controlState)
+            {
+                this->controlState = state;
+                return state;
+            }
+            return false;
+        }
+        break;
+        default:
+            return false;
+    }
+}
+
+bool SystemMidiBinding::IsMatch(const MidiEvent&event)
+{
+    switch (currentBinding.bindingType())
+    {
+        case BINDING_TYPE_NOTE:
+        {
+            if (event.size != 3) return false;
+            auto  command = event.buffer[0] & 0xF0;
+            if (command != 0x80 && command != 0x90) return false; // note on/note off.
+            return event.buffer[1] == currentBinding.note();
+        }
+        break;
+        case BINDING_TYPE_CONTROL:
+        {
+            if (event.size != 3) return false;
+            auto  command = event.buffer[0] & 0xF0;
+            if (command != 0xB0) return false;
+            return event.buffer[1] == currentBinding.control();
+        }
+        break;
+        default:
+            return false;
+    }
+}
+
+class AudioHostImpl : public AudioHost, private AudioDriverHost
 {
 private:
     IHost *pHost = nullptr;
 
+    static constexpr size_t DEFERRED_MIDI_BUFFER_SIZE = 1024;
+
+    uint8_t deferredMidiMessages[DEFERRED_MIDI_BUFFER_SIZE];
+    size_t deferredMidiMessageCount;
+    bool midiProgramChangePending = false;
+    int selectedBank = -1;
+    int64_t midiProgramChangeId = 0;
+
     class Uris
     {
     public:
@@ -124,7 +202,6 @@ private:
             atom_Vector = pHost->GetLv2Urid(LV2_ATOM__Vector);
             atom_Object = pHost->GetLv2Urid(LV2_ATOM__Object);
 
-
             atom_Sequence = pHost->GetLv2Urid(LV2_ATOM__Sequence);
             atom_Chunk = pHost->GetLv2Urid(LV2_ATOM__Chunk);
             atom_URID = pHost->GetLv2Urid(LV2_ATOM__URID);
@@ -138,7 +215,6 @@ private:
             // patch_accept = pHost->GetLv2Urid(LV2_PATCH__accept);
             patch_value = pHost->GetLv2Urid(LV2_PATCH__value);
             unitsFrame = pHost->GetLv2Urid(LV2_UNITS__frame);
-
         }
         // LV2_URID patch_accept;
 
@@ -171,16 +247,14 @@ private:
 
     Uris uris;
 
-
-
     AudioDriver *audioDriver = nullptr;
 
     inherit_priority_recursive_mutex mutex;
     int64_t overrunGracePeriodSamples = 0;
 
-    IJackHostCallbacks *pNotifyCallbacks = nullptr;
+    IAudioHostCallbacks *pNotifyCallbacks = nullptr;
 
-    virtual void SetNotificationCallbacks(IJackHostCallbacks *pNotifyCallbacks)
+    virtual void SetNotificationCallbacks(IAudioHostCallbacks *pNotifyCallbacks)
     {
         this->pNotifyCallbacks = pNotifyCallbacks;
     }
@@ -197,6 +271,9 @@ private:
     HostRingBufferReader hostReader;
     HostRingBufferWriter hostWriter;
 
+    SystemMidiBinding nextMidiBinding;
+    SystemMidiBinding prevMidiBinding;
+
     JackChannelSelection channelSelection;
     bool active = false;
 
@@ -213,7 +290,6 @@ private:
     std::atomic<std::chrono::system_clock::time_point> lastUnderrunTime =
         std::chrono::system_clock::from_time_t(0);
 
-
     std::string GetAtomObjectType(uint8_t *pData)
     {
         LV2_Atom_Object *pAtom = (LV2_Atom_Object *)pData;
@@ -222,7 +298,6 @@ private:
             throw std::invalid_argument("Not an Lv2 Object");
         }
         return pHost->Lv2UriudToString(pAtom->body.otype);
-
     }
 
     void WriteAtom(json_writer &writer, LV2_Atom *pAtom);
@@ -243,7 +318,6 @@ private:
         this->lastUnderrunTime = std::chrono::system_clock ::now();
     }
 
-
     virtual void Close()
     {
         std::lock_guard guard(mutex);
@@ -286,13 +360,11 @@ private:
         this->inputRingBuffer.reset();
         this->outputRingBuffer.reset();
 
-
         for (size_t i = 0; i < midiLv2Buffers.size(); ++i)
         {
             delete[] midiLv2Buffers[i];
         }
         midiLv2Buffers.resize(0);
-
     }
 
     void ZeroBuffer(float *buffer, size_t nframes)
@@ -341,6 +413,9 @@ private:
         }
     }
 
+
+    virtual void SetSystemMidiBindings(const std::vector<MidiBinding>&bindings);
+
     void writeVu()
     {
         // throttling: we send one; but won't send another until the host thread
@@ -459,6 +534,16 @@ private:
                 this->realtimeMonitorPortSubscriptions = pSubscriptions;
                 break;
             }
+            case RingBufferCommand::AckMidiProgramChange:
+            {
+                int64_t requestId;
+                realtimeReader.readComplete(&requestId);
+                if (requestId == this->midiProgramChangeId)
+                {
+                    this->midiProgramChangePending = false;
+                }
+                break;
+            }
             case RingBufferCommand::SetVuSubscriptions:
             {
                 RealtimeVuBuffers *configuration;
@@ -485,6 +570,8 @@ private:
                 ReplaceEffectBody body;
                 realtimeReader.readComplete(&body);
 
+                if (body.effect != nullptr)
+                {
                     auto oldValue = this->realtimeActivePedalBoard;
                     this->realtimeActivePedalBoard = body.effect;
 
@@ -493,6 +580,7 @@ private:
                     // invalidate the possibly no-good subscriptions. Model will update them shortly.
                     freeRealtimeVuConfiguration();
                     freeRealtimeMonitorPortSubscriptions();
+                }
                 break;
             }
             default:
@@ -502,38 +590,25 @@ private:
         reEntered = false;
     }
 
+    virtual void AckMidiProgramRequest(uint64_t requestId)
+    {
+        hostWriter.AckMidiProgramRequest(requestId);
+    }
+
     void OnMidiValueChanged(uint64_t instanceId, int controlIndex, float value)
     {
         realtimeWriter.MidiValueChanged(instanceId, controlIndex, value);
     }
     static void fnMidiValueChanged(void *data, uint64_t instanceId, int controlIndex, float value)
     {
-        ((JackHostImpl *)data)->OnMidiValueChanged(instanceId, controlIndex, value);
+        ((AudioHostImpl *)data)->OnMidiValueChanged(instanceId, controlIndex, value);
     }
-    void ProcessJackMidi()
+    static bool isBankChange(MidiEvent &event)
     {
-        Lv2EventBufferWriter eventBufferWriter(this->eventBufferUrids);
+        return (event.size == 3 && event.buffer[0] == 0xB0 && event.buffer[1] == 0x00);
+    }
 
-        size_t midiInputBufferCount = audioDriver->MidiInputBufferCount(); 
-
-        audioDriver->FillMidiBuffers();
-        
-        for (size_t i = 0; i < midiInputBufferCount; ++i)
-        {
-            
-            void *portBuffer = audioDriver->GetMidiInputBuffer(i,0);
-            if (portBuffer)
-            {
-                uint8_t *lv2Buffer = this->midiLv2Buffers[i];
-                size_t n = audioDriver->GetMidiInputEventCount(portBuffer);
-
-                eventBufferWriter.Reset(lv2Buffer, MIDI_LV2_BUFFER_SIZE);
-                auto iterator = eventBufferWriter.begin();
-
-                for (size_t frame = 0; frame < n; ++frame)
-                {
-                    MidiEvent event;
-                    if (audioDriver->GetMidiInputEvent(&event,portBuffer,frame)) 
+    bool onMidiEvent(Lv2EventBufferWriter&eventBufferWriter, Lv2EventBufferWriter::LV2_EvBuf_Iterator &iterator, MidiEvent&event)
     {
         eventBufferWriter.writeMidiEvent(iterator, 0, event.size, event.buffer);
 
@@ -551,6 +626,102 @@ private:
                 }
             }
         }
+        return true;
+    }
+
+
+    void ProcessMidiInput()
+    {
+        Lv2EventBufferWriter eventBufferWriter(this->eventBufferUrids);
+
+        size_t midiInputBufferCount = audioDriver->MidiInputBufferCount();
+
+        audioDriver->FillMidiBuffers();
+
+        for (size_t midiDeviceIx = 0; midiDeviceIx < midiInputBufferCount; ++midiDeviceIx)
+        {
+
+            void *portBuffer = audioDriver->GetMidiInputBuffer(midiDeviceIx, 0);
+            if (portBuffer)
+            {
+                uint8_t *lv2Buffer = this->midiLv2Buffers[midiDeviceIx];
+                size_t n = audioDriver->GetMidiInputEventCount(portBuffer);
+
+                eventBufferWriter.Reset(lv2Buffer, MIDI_LV2_BUFFER_SIZE);
+                Lv2EventBufferWriter::LV2_EvBuf_Iterator iterator = eventBufferWriter.begin();
+                MidiEvent event;
+
+
+                // write all deferred midi messages.
+                if (deferredMidiMessageCount != 0 && !midiProgramChangePending)
+                {
+                    for (size_t i = 0; i < deferredMidiMessageCount; /**/)
+                    {
+                        int8_t deviceIndex = deferredMidiMessages[i++];
+                        int8_t messageCount = deferredMidiMessages[i++];
+                        if (deviceIndex == midiDeviceIx)
+                        {
+                            event.size = messageCount;
+                            event.buffer = deferredMidiMessages +i;
+                            event.time = 0;
+
+                            onMidiEvent(eventBufferWriter,iterator,event);
+                        }
+
+                        i += messageCount;
+                    }
+                }
+
+
+                for (size_t frame = 0; frame < n; ++frame)
+                {
+                    if (audioDriver->GetMidiInputEvent(&event, portBuffer, frame))
+                    {
+                        uint8_t midiCommand = (uint8_t)(event.buffer[0] & 0xF0);
+                        if (midiCommand == 0xC0) // midi program change.
+                        {
+                            this->deferredMidiMessageCount = 0; // we can discard previous control changes.
+                            midiProgramChangePending = true;
+
+                            this->realtimeWriter.OnMidiProgramChange(++(this->midiProgramChangeId), selectedBank,event.buffer[1]);
+                        }
+                        else if (isBankChange(event))
+                        {
+                            this->selectedBank = event.buffer[2];
+                        } else if (this->nextMidiBinding.IsMatch(event))
+                        {
+                            if (nextMidiBinding.IsTriggered(event))
+                            {
+                                midiProgramChangePending = true;
+                                this->realtimeWriter.OnNextMidiProgram(++(this->midiProgramChangeId),1);
+                            }
+                        } else if (this->prevMidiBinding.IsMatch(event))
+                        {
+                            if (prevMidiBinding.IsTriggered(event))
+                            {
+                                midiProgramChangePending = true;
+                                this->realtimeWriter.OnNextMidiProgram(++(this->midiProgramChangeId),-1);
+                            }
+                        }
+                        else if (midiProgramChangePending)
+                        {
+                            // defer the message for processing after the program change has completed.
+                            if (event.size > 0 
+                                && event.size < 128 
+                                && event.size + 2 + this->deferredMidiMessageCount < DEFERRED_MIDI_BUFFER_SIZE)
+                            {
+                                this->deferredMidiMessages[deferredMidiMessageCount++] = midiDeviceIx;
+                                this->deferredMidiMessages[deferredMidiMessageCount++] = (uint8_t)event.size;
+                                for (size_t i = 0; i < event.size; ++i)
+                                {
+                                    this->deferredMidiMessages[deferredMidiMessageCount++] = event.buffer[i];
+                                }
+                            }
+                        }
+                        else
+                        {
+                            onMidiEvent(eventBufferWriter,iterator,event);
+                        }
                     }
                 }
             }
@@ -571,7 +742,6 @@ private:
         std::lock_guard lock{audioStoppedMutex};
         this->active = false;
         Lv2Log::info("Audio stopped.");
-
     }
 
     virtual void OnProcess(size_t nframes)
@@ -589,7 +759,7 @@ private:
             Lv2PedalBoard *pedalBoard = this->realtimeActivePedalBoard;
             if (pedalBoard != nullptr)
             {
-                ProcessJackMidi();
+                ProcessMidiInput();
                 float *inputBuffers[4];
                 float *outputBuffers[4];
                 bool buffersValid = true;
@@ -664,18 +834,16 @@ private:
                 this->underruns = 0;
             }
             this->currentSample += nframes;
-
         }
         catch (const std::exception &e)
         {
             Lv2Log::error("Fatal error while processing jack audio. (%s)", e.what());
             throw;
         }
-
     }
 
 public:
-    JackHostImpl(IHost *pHost)
+    AudioHostImpl(IHost *pHost)
         : inputRingBuffer(RING_BUFFER_SIZE),
           outputRingBuffer(RING_BUFFER_SIZE),
           realtimeReader(&this->inputRingBuffer),
@@ -693,15 +861,13 @@ public:
 #if ALSA_HOST
         audioDriver = CreateAlsaDriver(this);
 #endif
-
     }
-    virtual ~JackHostImpl()
+    virtual ~AudioHostImpl()
     {
         Close();
         CleanRestartThreads(true);
 
         delete audioDriver;
-
     }
 
     virtual JackConfiguration GetServerConfiguration()
@@ -717,6 +883,8 @@ public:
         return this->sampleRate;
     }
 
+
+
     void OnAudioComplete()
     {
         // there is actually no compelling circumstance in which this should ever happen.
@@ -878,7 +1046,8 @@ public:
                                     this->pNotifyCallbacks->OnNotifyVusSubscription(*updates);
                                 }
                                 this->hostWriter.AckVuUpdate(); // please sir, can I have some more?
-                            } else if (command == RingBufferCommand::AtomOutput)
+                            }
+                            else if (command == RingBufferCommand::AtomOutput)
                             {
                                 uint64_t instanceId;
                                 hostReader.read(&instanceId);
@@ -890,7 +1059,6 @@ public:
                                 }
                                 hostReader.read(extraBytes, &(atomBuffer[0]));
 
-                        
                                 IEffect *pEffect = currentPedalBoard->GetEffect(instanceId);
                                 if (pEffect != nullptr && this->pNotifyCallbacks && listenForAtomOutput)
                                 {
@@ -923,6 +1091,16 @@ public:
                                 hostReader.read(&body);
                                 OnAudioComplete();
                                 return;
+                            } else if (command == RingBufferCommand::MidiProgramChange)
+                            {
+                                RealtimeMidiProgramRequest programRequest;
+                                hostReader.read(&programRequest);
+                                OnMidiProgramRequest(programRequest);
+                            } else if (command == RingBufferCommand::NextMidiProgram)
+                            {
+                                RealtimeNextMidiProgramRequest request;
+                                hostReader.read(&request);
+                                pNotifyCallbacks->OnNotifyNextMidiProgram(request);
                             }
                             else
                             {
@@ -982,13 +1160,11 @@ public:
         return result;
     }
 
-
     virtual void Open(const JackServerSettings &jackServerSettings, const JackChannelSelection &channelSelection)
     {
 
         std::lock_guard guard(mutex);
-        if (channelSelection.GetInputAudioPorts().size() == 0
-        || channelSelection.GetOutputAudioPorts().size() == 0)
+        if (channelSelection.GetInputAudioPorts().size() == 0 || channelSelection.GetOutputAudioPorts().size() == 0)
         {
             return;
         }
@@ -1009,7 +1185,8 @@ public:
 
         StartReaderThread();
 
-        try {
+        try
+        {
 
             audioDriver->Open(jackServerSettings, this->channelSelection);
 
@@ -1018,18 +1195,15 @@ public:
             this->overrunGracePeriodSamples = (uint64_t)(((uint64_t)this->sampleRate) * OVERRUN_GRACE_PERIOD_S);
             this->vuSamplesPerUpdate = (size_t)(sampleRate * VU_UPDATE_RATE_S);
 
-
             midiLv2Buffers.resize(audioDriver->MidiInputBufferCount());
             for (size_t i = 0; i < audioDriver->MidiInputBufferCount(); ++i)
             {
                 midiLv2Buffers[i] = AllocateRealtimeBuffer(MIDI_LV2_BUFFER_SIZE);
             }
 
-
             active = true;
             audioDriver->Activate();
             Lv2Log::info("Audio started.");
-
         }
         catch (const std::exception &e)
         {
@@ -1040,6 +1214,10 @@ public:
         }
     }
 
+    void OnMidiProgramRequest(RealtimeMidiProgramRequest &programRequest)
+    {
+        pNotifyCallbacks->OnNotifyMidiProgramChange(programRequest);
+    }
     void OnActivePedalBoardReleased(Lv2PedalBoard *pPedalBoard)
     {
         if (pPedalBoard)
@@ -1207,7 +1385,7 @@ public:
 private:
     class RestartThread
     {
-        JackHostImpl *this_;
+        AudioHostImpl *this_;
         JackServerSettings jackServerSettings;
         std::function<void(bool success, const std::string &errorMessage)> onComplete;
         std::atomic<bool> isComplete = false;
@@ -1215,7 +1393,7 @@ private:
 
     public:
         RestartThread(
-            JackHostImpl *host,
+            AudioHostImpl *host,
             const JackServerSettings &jackServerSettings_,
             std::function<void(bool success, const std::string &errorMessage)> onComplete_)
             : this_(host),
@@ -1234,17 +1412,18 @@ private:
         {
             this_->restarting = true;
             // this_->Close(); (JackServerConfiguration now does a service restart.)
-            try {
+            try
+            {
                 AdminClient client;
 
                 client.SetJackServerConfiguration(jackServerSettings);
 
-
                 // this_->Open(this_->channelSelection);
                 this_->restarting = false;
                 onComplete(true, "");
                 isComplete = true;
-            } catch (const std::exception &e)
+            }
+            catch (const std::exception &e)
             {
                 onComplete(false, e.what());
                 this_->restarting = false;
@@ -1367,7 +1546,8 @@ public:
     }
 };
 
-static std::string UriToFieldName(const std::string&uri){
+static std::string UriToFieldName(const std::string &uri)
+{
     int pos;
     for (pos = uri.length(); pos >= 0; --pos)
     {
@@ -1380,7 +1560,7 @@ static std::string UriToFieldName(const std::string&uri){
     return uri.substr(pos + 1);
 }
 
-void JackHostImpl::WriteAtom(json_writer &writer, LV2_Atom*pAtom)
+void AudioHostImpl::WriteAtom(json_writer &writer, LV2_Atom *pAtom)
 {
     if (pAtom->type == uris.atom_Blank)
     {
@@ -1389,36 +1569,35 @@ void JackHostImpl::WriteAtom(json_writer &writer, LV2_Atom*pAtom)
     else if (pAtom->type == uris.atom_float)
     {
         writer.write(
-            ((LV2_Atom_Float*)pAtom)->body
-        );
-
-    } else if (pAtom->type == uris.atom_Int)
+            ((LV2_Atom_Float *)pAtom)->body);
+    }
+    else if (pAtom->type == uris.atom_Int)
     {
         writer.write(
-            ((LV2_Atom_Int*)pAtom)->body
-        );
-    } else if (pAtom->type == uris.atom_Long)
+            ((LV2_Atom_Int *)pAtom)->body);
+    }
+    else if (pAtom->type == uris.atom_Long)
     {
         writer.write(
-            ((LV2_Atom_Long*)pAtom)->body
-        );
-    } else if (pAtom->type == uris.atom_Double)
+            ((LV2_Atom_Long *)pAtom)->body);
+    }
+    else if (pAtom->type == uris.atom_Double)
     {
         writer.write(
-            ((LV2_Atom_Double*)pAtom)->body
-        );
-    } else if (pAtom->type == uris.atom_Bool)
+            ((LV2_Atom_Double *)pAtom)->body);
+    }
+    else if (pAtom->type == uris.atom_Bool)
     {
         writer.write(
-            ((LV2_Atom_Bool*)pAtom)->body
-        );
-    } else if (pAtom->type == uris.atom_String)
+            ((LV2_Atom_Bool *)pAtom)->body);
+    }
+    else if (pAtom->type == uris.atom_String)
     {
         const char *p = (((const char *)pAtom) + sizeof(LV2_Atom_String));
         writer.write(
-            p
-        );
-    } else if (pAtom->type == uris.atom_Vector)
+            p);
+    }
+    else if (pAtom->type == uris.atom_Vector)
     {
         LV2_Atom_Vector *pVector = (LV2_Atom_Vector *)pAtom;
         writer.start_array();
@@ -1430,45 +1609,55 @@ void JackHostImpl::WriteAtom(json_writer &writer, LV2_Atom*pAtom)
                 float *p = (float *)pItems;
                 for (size_t i = 0; i < n; ++i)
                 {
-                    if (i != 0) writer.write_raw(",");
+                    if (i != 0)
+                        writer.write_raw(",");
                     writer.write(*p++);
                 }
-            } else if (pVector->body.child_type == uris.atom_Int)
+            }
+            else if (pVector->body.child_type == uris.atom_Int)
             {
                 int32_t *p = (int32_t *)pItems;
                 for (size_t i = 0; i < n; ++i)
                 {
-                    if (i != 0) writer.write_raw(",");
+                    if (i != 0)
+                        writer.write_raw(",");
                     writer.write(*p++);
                 }
-            } else if (pVector->body.child_type == uris.atom_Long)
+            }
+            else if (pVector->body.child_type == uris.atom_Long)
             {
                 int64_t *p = (int64_t *)pItems;
                 for (size_t i = 0; i < n; ++i)
                 {
-                    if (i != 0) writer.write_raw(",");
+                    if (i != 0)
+                        writer.write_raw(",");
                     writer.write(*p++);
                 }
-            } else if (pVector->body.child_type == uris.atom_Double)
+            }
+            else if (pVector->body.child_type == uris.atom_Double)
             {
                 double *p = (double *)pItems;
                 for (size_t i = 0; i < n; ++i)
                 {
-                    if (i != 0) writer.write_raw(",");
+                    if (i != 0)
+                        writer.write_raw(",");
                     writer.write(*p++);
                 }
-            } else if (pVector->body.child_type == uris.atom_Bool)
+            }
+            else if (pVector->body.child_type == uris.atom_Bool)
             {
                 bool *p = (bool *)pItems;
                 for (size_t i = 0; i < n; ++i)
                 {
-                    if (i != 0) writer.write_raw(",");
+                    if (i != 0)
+                        writer.write_raw(",");
                     writer.write(*p++);
                 }
             }
         }
         writer.end_array();
-    } else if (pAtom->type == uris.atom_Object)
+    }
+    else if (pAtom->type == uris.atom_Object)
     {
         writer.start_object();
 
@@ -1492,8 +1681,10 @@ void JackHostImpl::WriteAtom(json_writer &writer, LV2_Atom*pAtom)
             firstMember = false;
         }
 
-        LV2_ATOM_OBJECT_FOREACH (obj, prop) {
-            if (!firstMember) {
+        LV2_ATOM_OBJECT_FOREACH(obj, prop)
+        {
+            if (!firstMember)
+            {
                 writer.write_raw(",");
             }
             firstMember = false;
@@ -1505,14 +1696,27 @@ void JackHostImpl::WriteAtom(json_writer &writer, LV2_Atom*pAtom)
             WriteAtom(writer, value);
         }
         writer.end_object();
-        
+    }
 }
 
-}
-
-JackHost *JackHost::CreateInstance(IHost *pHost)
+void AudioHostImpl::SetSystemMidiBindings(const std::vector<MidiBinding>&bindings) 
 {
-    return new JackHostImpl(pHost);
+    for (auto i = bindings.begin(); i != bindings.end(); ++i)
+    {
+        if (i->symbol() == "nextProgram")
+        {
+            this->nextMidiBinding.SetBinding(*i);
+        } else if (i->symbol() == "prevProgram")
+        {
+            this->prevMidiBinding.SetBinding(*i);
+        }
+    }
+}
+
+
+AudioHost *AudioHost::CreateInstance(IHost *pHost)
+{
+    return new AudioHostImpl(pHost);
 }
 
 JSON_MAP_BEGIN(JackHostStatus)

src/AudioHost.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2022 Robin Davies
+// Copyright (c) 2022-2023 Robin Davies
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy of
 // this software and associated documentation files (the "Software"), to deal in
@@ -24,7 +24,7 @@
 #include "Lv2PedalBoard.hpp"
 #include "VuUpdate.hpp"
 #include "json.hpp"
-#include "JackHost.hpp"
+#include "AudioHost.hpp"
 #include "JackServerSettings.hpp"
 #include <functional>
 #include "PiPedalAlsa.hpp"
@@ -32,6 +32,8 @@
 namespace pipedal {
 
 
+struct RealtimeMidiProgramRequest;
+struct RealtimeNextMidiProgramRequest;
 
 using PortMonitorCallback = std::function<void (int64_t handle, float value)>;
 
@@ -91,7 +93,7 @@ public:
 
 };
 
-class IJackHostCallbacks {
+class IAudioHostCallbacks {
 public:
     virtual void OnNotifyVusSubscription(const std::vector<VuUpdate> & updates) = 0;
     virtual void OnNotifyMonitorPort(const MonitorPortUpdate &update) = 0;
@@ -99,6 +101,8 @@ public:
     virtual void OnNotifyMidiListen(bool isNote, uint8_t noteOrControl) = 0;
     virtual void OnNotifyAtomOutput(uint64_t instanceId, const std::string&atomType,const std::string&atomJson) = 0;
 
+    virtual void OnNotifyMidiProgramChange(RealtimeMidiProgramRequest&midiProgramRequest) = 0;
+    virtual void OnNotifyNextMidiProgram(const RealtimeNextMidiProgramRequest&request) = 0;
 
 };
 
@@ -124,17 +128,17 @@ public:
 
 class IHost;
 
-class JackHost {
+class AudioHost {
 protected: 
-    JackHost() { }
+    AudioHost() { }
 public: 
-    static JackHost*CreateInstance(IHost *pHost);
-    virtual ~JackHost() { };
+    static AudioHost*CreateInstance(IHost *pHost);
+    virtual ~AudioHost() { };
 
     virtual void UpdateServerConfiguration(const JackServerSettings & jackServerSettings,
         std::function<void(bool success, const std::string&errorMessage)> onComplete) = 0;
 
-    virtual void SetNotificationCallbacks(IJackHostCallbacks *pNotifyCallbacks) = 0;
+    virtual void SetNotificationCallbacks(IAudioHostCallbacks *pNotifyCallbacks) = 0;
 
     virtual void SetListenForMidiEvent(bool listen) = 0;
     virtual void SetListenForAtomOutput(bool listen) = 0;
@@ -158,7 +162,10 @@ public:
     virtual void SetVuSubscriptions(const std::vector<int64_t> &instanceIds) = 0;
     virtual void SetMonitorPortSubscriptions(const std::vector<MonitorPortSubscription> &subscriptions) = 0;
 
+    virtual void SetSystemMidiBindings(const std::vector<MidiBinding>&bindings) = 0;
+
     virtual void getRealtimeParameter(RealtimeParameterRequest*pParameterRequest) = 0;
+    virtual void AckMidiProgramRequest(uint64_t requestId) = 0;
 
     virtual JackHostStatus getJackStatus() = 0;
 

src/CMakeLists.txt

@@ -149,7 +149,7 @@ set (PIPEDAL_SOURCES
     CpuGovernor.cpp CpuGovernor.hpp
     GovernorSettings.cpp GovernorSettings.hpp
     SysExec.cpp SysExec.hpp
-    BeastServer.cpp BeastServer.hpp HtmlHelper.cpp HtmlHelper.hpp pch.h Uri.cpp Uri.hpp
+    WebServer.cpp WebServer.hpp HtmlHelper.cpp HtmlHelper.hpp pch.h Uri.cpp Uri.hpp
     WifiConfigSettings.hpp WifiConfigSettings.cpp
     WifiDirectConfigSettings.hpp WifiDirectConfigSettings.cpp
     ConfigUtil.hpp ConfigUtil.cpp
@@ -164,7 +164,7 @@ set (PIPEDAL_SOURCES
     Presets.hpp Presets.cpp
     Storage.hpp Storage.cpp
     Banks.hpp Banks.cpp
-    JackHost.hpp JackHost.cpp
+    AudioHost.hpp AudioHost.cpp
     JackConfiguration.hpp JackConfiguration.cpp
     defer.hpp
     Lv2Effect.cpp Lv2Effect.hpp
@@ -264,7 +264,7 @@ add_executable(pipedaltest testMain.cpp
 
     SystemConfigFile.hpp SystemConfigFile.cpp
     SystemConfigFileTest.cpp
-    BeastServerTest.cpp
+    WebServerTest.cpp
     MemDebug.cpp
     MemDebug.hpp
     )

src/Lv2Effect.cpp

@@ -37,7 +37,7 @@
 #include "lv2/parameters.lv2/parameters.h"
 #include "lv2/units.lv2/units.h"
 #include "lv2/atom.lv2/util.h"
-#include "JackHost.hpp"
+#include "AudioHost.hpp"
 #include <exception>
 #include "RingBufferReader.hpp"
 

src/Lv2PedalBoard.cpp

@@ -25,7 +25,7 @@
 #include "SplitEffect.hpp"
 #include "RingBufferReader.hpp"
 #include "VuUpdate.hpp"
-#include "JackHost.hpp"
+#include "AudioHost.hpp"
 #include "Lv2EventBufferWriter.hpp"
 
 using namespace pipedal;

src/MidiBinding.hpp

@@ -58,15 +58,21 @@ public:
 private:
     std::string symbol_;
     int channel_ = -1;
-    int bindingType_;
+    int bindingType_ = BINDING_TYPE_NONE;
     int note_ = 12*4+24;
     int control_ = 1;
     float minValue_ = 0;
     float maxValue_ = 1;
     float rotaryScale_ = 1;
-    int linearControlType_ = 0;
-    int switchControlType_ = 0;
+    int linearControlType_ = LINEAR_CONTROL_TYPE;
+    int switchControlType_ = LATCH_CONTROL_TYPE;
 public:
+    static MidiBinding SystemBinding(const std::string&symbol)
+    {
+        MidiBinding result;
+        result.symbol_ = symbol;
+        return result;
+    }
     GETTER_SETTER(channel);
     GETTER_SETTER_REF(symbol);
     GETTER_SETTER(bindingType);

src/PiPedalModel.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2022 Robin Davies
+// Copyright (c) 2022-2023 Robin Davies
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy of
 // this software and associated documentation files (the "Software"), to deal in
@@ -23,13 +23,14 @@
 #include "ConfigUtil.hpp"
 #include <sched.h>
 #include "PiPedalModel.hpp"
-#include "JackHost.hpp"
+#include "AudioHost.hpp"
 #include "Lv2Log.hpp"
 #include <set>
 #include "PiPedalConfiguration.hpp"
 #include "AdminClient.hpp"
 #include "SplitEffect.hpp"
 #include "CpuGovernor.hpp"
+#include "RingBufferReader.hpp"
 
 #ifndef NO_MLOCK
 #include <sys/mman.h>
@@ -84,9 +85,9 @@ void PiPedalModel::Close()
     }
     delete[] t;
 
-    if (jackHost)
+    if (audioHost)
     {
-        jackHost->Close();
+        audioHost->Close();
     }
 }
 
@@ -113,9 +114,9 @@ PiPedalModel::~PiPedalModel()
 
     try
     {
-        if (jackHost)
+        if (audioHost)
         {
-            jackHost->Close();
+            audioHost->Close();
         }
     }
     catch (...)
@@ -133,6 +134,8 @@ void PiPedalModel::Init(const PiPedalConfiguration &configuration)
     storage.SetDataRoot(configuration.GetLocalStoragePath());
     storage.Initialize();
 
+    this->systemMidiBindings = storage.GetSystemMidiBindings();
+
     this->jackServerSettings.ReadJackConfiguration();
 }
 
@@ -191,10 +194,14 @@ void PiPedalModel::Load()
     }
     UpdateDefaults(&this->pedalBoard);
 
-    std::unique_ptr<JackHost> p{JackHost::CreateInstance(lv2Host.asIHost())};
-    this->jackHost = std::move(p);
+    std::unique_ptr<AudioHost> p{AudioHost::CreateInstance(lv2Host.asIHost())};
+    this->audioHost = std::move(p);
 
-    this->jackHost->SetNotificationCallbacks(this);
+    this->audioHost->SetNotificationCallbacks(this);
+
+    this->systemMidiBindings = storage.GetSystemMidiBindings();
+
+    this->audioHost->SetSystemMidiBindings(this->systemMidiBindings);
 
     if (configuration.GetMLock())
     {
@@ -226,11 +233,11 @@ void PiPedalModel::Load()
         this->lv2Host.OnConfigurationChanged(jackConfiguration, selection);
         try
         {
-            jackHost->Open(this->jackServerSettings, selection);
+            audioHost->Open(this->jackServerSettings, selection);
             try {
                 std::shared_ptr<Lv2PedalBoard> lv2PedalBoard{this->lv2Host.CreateLv2PedalBoard(this->pedalBoard)};
                 this->lv2PedalBoard = lv2PedalBoard;
-                jackHost->SetPedalBoard(lv2PedalBoard);
+                audioHost->SetPedalBoard(lv2PedalBoard);
             }
             catch (const std::exception &e)
             {
@@ -305,7 +312,7 @@ void PiPedalModel::PreviewControl(int64_t clientId, int64_t pedalItemId, const s
             effect->SetControl(index,value);;
         }
     } else {
-        jackHost->SetControlValue(pedalItemId, symbol, value);
+        audioHost->SetControlValue(pedalItemId, symbol, value);
     }
 }
 
@@ -387,11 +394,11 @@ void PiPedalModel::FirePedalBoardChanged(int64_t clientId)
     delete[] t;
 
     // notify the audio thread.
-    if (jackHost->IsOpen())
+    if (audioHost->IsOpen())
     {
         std::shared_ptr<Lv2PedalBoard> lv2PedalBoard{this->lv2Host.CreateLv2PedalBoard(this->pedalBoard)};
         this->lv2PedalBoard = lv2PedalBoard;
-        jackHost->SetPedalBoard(lv2PedalBoard);
+        audioHost->SetPedalBoard(lv2PedalBoard);
         UpdateRealtimeVuSubscriptions();
         UpdateRealtimeMonitorPortSubscriptions();
     }
@@ -446,7 +453,7 @@ void PiPedalModel::SetPedalBoardItemEnable(int64_t clientId, int64_t pedalItemId
         this->SetPresetChanged(clientId, true);
 
         // Notify audo thread.
-        this->jackHost->SetBypass(pedalItemId, enabled);
+        this->audioHost->SetBypass(pedalItemId, enabled);
     }
 }
 
@@ -621,6 +628,87 @@ int64_t PiPedalModel::UploadBank(BankFile &bankFile, int64_t uploadAfter)
     return newPreset;
 }
 
+void PiPedalModel::OnNotifyNextMidiProgram(const RealtimeNextMidiProgramRequest&request)
+{
+    std::lock_guard<std::recursive_mutex> guard{mutex};
+    try {
+        PresetIndex index;
+        storage.GetPresetIndex(&index);
+        auto currentPresetId = storage.GetCurrentPresetId();
+        size_t currentPresetIndex = 0;
+
+        for (size_t i = 0; i < index.presets().size(); ++i)
+        {
+            if (index.presets()[i].instanceId() == currentPresetId)
+            {
+                currentPresetIndex = i;
+                break;
+            }
+        }
+        if (index.presets().size() == 0)
+        {
+            throw PiPedalException("No presets loaded.");
+        }
+        if (request.direction < 0)
+        {
+            if (currentPresetIndex == 0)
+            {
+                currentPresetIndex = index.presets().size()-1;
+            } else {
+                --currentPresetIndex;
+            }
+        } else {
+            ++currentPresetIndex;
+            if (currentPresetIndex >= index.presets().size())
+            {
+                currentPresetIndex = 0;
+            }
+        }
+        LoadPreset(-1,index.presets()[currentPresetIndex].instanceId());
+    } catch (std::exception&e)
+    {
+        
+        Lv2Log::error(e.what());
+    }
+    if (this->audioHost)
+    {
+        this->audioHost->AckMidiProgramRequest(request.requestId);
+    }
+}
+
+
+void PiPedalModel::OnNotifyMidiProgramChange(RealtimeMidiProgramRequest&midiProgramRequest)
+{
+    std::lock_guard<std::recursive_mutex> guard{mutex};
+    try {
+        if (midiProgramRequest.bank >= 0)
+        {   
+            int64_t bankId = storage.GetBankByMidiBankNumber(midiProgramRequest.bank);
+            if (bankId == -1) throw PiPedalException("Bank not found.");
+            if (bankId != this->storage.GetBanks().selectedBank())
+            {
+                storage.LoadBank(bankId);
+
+                FireBanksChanged(-1);
+                FirePresetsChanged(-1);
+            }
+        } 
+        int64_t presetId = storage.GetPresetByProgramNumber(midiProgramRequest.program);
+        if (presetId == -1) throw PiPedalException("No valid preset.");
+        LoadPreset(-1,presetId);
+    } catch (std::exception&e)
+    {
+        
+        Lv2Log::error(e.what());
+    }
+    if (this->audioHost)
+    {
+        this->audioHost->AckMidiProgramRequest(midiProgramRequest.requestId);
+    }
+}
+
+
+
 void PiPedalModel::LoadPreset(int64_t clientId, int64_t instanceId)
 {
     std::lock_guard<std::recursive_mutex> guard{mutex};
@@ -883,10 +971,10 @@ JackConfiguration PiPedalModel::GetJackConfiguration()
 
 void PiPedalModel::RestartAudio()
 {
-    if (this->jackHost->IsOpen())
+    if (this->audioHost->IsOpen())
     {
 
-        this->jackHost->Close();
+        this->audioHost->Close();
     }
     // restarting is a bit dodgy. It was impossible with Jack, but
     // now very plausible with the ALSA audio stack.
@@ -899,7 +987,7 @@ void PiPedalModel::RestartAudio()
 
     // do a complete reload.
 
-    this->jackHost->SetPedalBoard(nullptr);
+    this->audioHost->SetPedalBoard(nullptr);
 
     this->jackConfiguration.AlsaInitialize(this->jackServerSettings);
 
@@ -928,13 +1016,13 @@ void PiPedalModel::RestartAudio()
             Lv2Log::error("Audio configuration not valid.");
             return;
         }
-        this->jackHost->Open(this->jackServerSettings, channelSelection);
+        this->audioHost->Open(this->jackServerSettings, channelSelection);
 
         this->lv2Host.OnConfigurationChanged(jackConfiguration, channelSelection);
 
         std::shared_ptr<Lv2PedalBoard> lv2PedalBoard{this->lv2Host.CreateLv2PedalBoard(this->pedalBoard)};
         this->lv2PedalBoard = lv2PedalBoard;
-        jackHost->SetPedalBoard(lv2PedalBoard);
+        audioHost->SetPedalBoard(lv2PedalBoard);
         this->UpdateRealtimeVuSubscriptions();
         UpdateRealtimeMonitorPortSubscriptions();
     }
@@ -1121,12 +1209,12 @@ void PiPedalModel::UpdateRealtimeVuSubscriptions()
         }
     }
     std::vector<int64_t> instanceids(addedInstances.begin(), addedInstances.end());
-    jackHost->SetVuSubscriptions(instanceids);
+    audioHost->SetVuSubscriptions(instanceids);
 }
 
 void PiPedalModel::UpdateRealtimeMonitorPortSubscriptions()
 {
-    jackHost->SetMonitorPortSubscriptions(this->activeMonitorPortSubscriptions);
+    audioHost->SetMonitorPortSubscriptions(this->activeMonitorPortSubscriptions);
 }
 
 int64_t PiPedalModel::MonitorPort(int64_t instanceId, const std::string &key, float updateInterval, PortMonitorCallback onUpdate)
@@ -1220,7 +1308,7 @@ void PiPedalModel::GetLv2Parameter(
 
     std::lock_guard<std::recursive_mutex> guard(mutex);
     outstandingParameterRequests.push_back(request);
-    this->jackHost->getRealtimeParameter(request);
+    this->audioHost->getRealtimeParameter(request);
 }
 
 BankIndex PiPedalModel::GetBankIndex() const
@@ -1254,6 +1342,7 @@ void PiPedalModel::OpenBank(int64_t clientId, int64_t bankId)
     FirePresetsChanged(clientId);
 
     this->pedalBoard = storage.GetCurrentPreset();
+
     UpdateDefaults(&this->pedalBoard);
     this->hasPresetChanged = false;
     this->FirePedalBoardChanged(clientId);
@@ -1311,7 +1400,7 @@ void PiPedalModel::SetJackServerSettings(const JackServerSettings &jackServerSet
 
         this->jackConfiguration.SetIsRestarting(true);
         FireJackConfigurationChanged(this->jackConfiguration);
-        this->jackHost->UpdateServerConfiguration(
+        this->audioHost->UpdateServerConfiguration(
             jackServerSettings,
             [this](bool success, const std::string &errorMessage)
             {
@@ -1341,7 +1430,7 @@ void PiPedalModel::SetJackServerSettings(const JackServerSettings &jackServerSet
                     std::shared_ptr<Lv2PedalBoard> lv2PedalBoard{this->lv2Host.CreateLv2PedalBoard(this->pedalBoard)};
                     this->lv2PedalBoard = lv2PedalBoard;
 
-                    jackHost->SetPedalBoard(lv2PedalBoard);
+                    audioHost->SetPedalBoard(lv2PedalBoard);
                     UpdateRealtimeVuSubscriptions();
                     UpdateRealtimeMonitorPortSubscriptions();
 #endif
@@ -1418,7 +1507,7 @@ void PiPedalModel::LoadPluginPreset(int64_t pluginInstanceId, uint64_t presetIns
     if (pedalBoardItem != nullptr)
     {
         std::vector<ControlValue> controlValues = storage.GetPluginPresetValues(pedalBoardItem->uri(), presetInstanceId);
-        jackHost->SetPluginPreset(pluginInstanceId, controlValues);
+        audioHost->SetPluginPreset(pluginInstanceId, controlValues);
 
         for (size_t i = 0; i < controlValues.size(); ++i)
         {
@@ -1451,7 +1540,7 @@ void PiPedalModel::DeleteAtomOutputListeners(int64_t clientId)
             --i;
         }
     }
-    jackHost->SetListenForAtomOutput(atomOutputListeners.size() != 0);
+    audioHost->SetListenForAtomOutput(atomOutputListeners.size() != 0);
 }
 
 void PiPedalModel::DeleteMidiListeners(int64_t clientId)
@@ -1465,7 +1554,7 @@ void PiPedalModel::DeleteMidiListeners(int64_t clientId)
             --i;
         }
     }
-    jackHost->SetListenForMidiEvent(midiEventListeners.size() != 0);
+    audioHost->SetListenForMidiEvent(midiEventListeners.size() != 0);
 }
 
 void PiPedalModel::OnNotifyAtomOutput(uint64_t instanceId, const std::string &atomType, const std::string &atomJson)
@@ -1489,7 +1578,7 @@ void PiPedalModel::OnNotifyAtomOutput(uint64_t instanceId, const std::string &at
             }
         }
     }
-    jackHost->SetListenForAtomOutput(atomOutputListeners.size() != 0);
+    audioHost->SetListenForAtomOutput(atomOutputListeners.size() != 0);
 }
 
 void PiPedalModel::OnNotifyMidiListen(bool isNote, uint8_t noteOrControl)
@@ -1513,7 +1602,7 @@ void PiPedalModel::OnNotifyMidiListen(bool isNote, uint8_t noteOrControl)
             }
         }
     }
-    jackHost->SetListenForMidiEvent(midiEventListeners.size() != 0);
+    audioHost->SetListenForMidiEvent(midiEventListeners.size() != 0);
 }
 
 void PiPedalModel::ListenForMidiEvent(int64_t clientId, int64_t clientHandle, bool listenForControlsOnly)
@@ -1521,7 +1610,7 @@ void PiPedalModel::ListenForMidiEvent(int64_t clientId, int64_t clientHandle, bo
     std::lock_guard<std::recursive_mutex> guard(mutex);
     MidiListener listener{clientId, clientHandle, listenForControlsOnly};
     midiEventListeners.push_back(listener);
-    jackHost->SetListenForMidiEvent(true);
+    audioHost->SetListenForMidiEvent(true);
 }
 
 void PiPedalModel::ListenForAtomOutputs(int64_t clientId, int64_t clientHandle, uint64_t instanceId)
@@ -1529,7 +1618,7 @@ void PiPedalModel::ListenForAtomOutputs(int64_t clientId, int64_t clientHandle,
     std::lock_guard<std::recursive_mutex> guard(mutex);
     AtomOutputListener listener{clientId, clientHandle, instanceId};
     atomOutputListeners.push_back(listener);
-    jackHost->SetListenForAtomOutput(true);
+    audioHost->SetListenForAtomOutput(true);
 }
 
 void PiPedalModel::CancelListenForMidiEvent(int64_t clientId, int64_t clientHandle)
@@ -1546,7 +1635,7 @@ void PiPedalModel::CancelListenForMidiEvent(int64_t clientId, int64_t clientHand
     }
     if (midiEventListeners.size() == 0)
     {
-        jackHost->SetListenForMidiEvent(false);
+        audioHost->SetListenForMidiEvent(false);
     }
 }
 void PiPedalModel::CancelListenForAtomOutputs(int64_t clientId, int64_t clientHandle)
@@ -1563,7 +1652,7 @@ void PiPedalModel::CancelListenForAtomOutputs(int64_t clientId, int64_t clientHa
     }
     if (midiEventListeners.size() == 0)
     {
-        jackHost->SetListenForMidiEvent(false);
+        audioHost->SetListenForMidiEvent(false);
     }
 }
 std::vector<AlsaDeviceInfo> PiPedalModel::GetAlsaDevices()
@@ -1600,3 +1689,31 @@ void PiPedalModel::SetFavorites(const std::map<std::string, bool> &favorites)
         t[i]->OnFavoritesChanged(favorites);
     }
 }
+std::vector<MidiBinding> PiPedalModel::GetSystemMidiBidings() {
+    std::lock_guard<std::recursive_mutex> guard(mutex);
+    return this->systemMidiBindings;
+}
+void PiPedalModel::SetSystemMidiBindings(std::vector<MidiBinding> &bindings)
+{
+    std::lock_guard<std::recursive_mutex> guard(mutex);
+    this->systemMidiBindings = bindings;
+    storage.SetSystemMidiBindings(bindings);
+    if (this->audioHost)
+    {
+        this->audioHost->SetSystemMidiBindings(bindings);
+    }
+
+    IPiPedalModelSubscriber **t = new IPiPedalModelSubscriber *[this->subscribers.size()];
+    for (size_t i = 0; i < subscribers.size(); ++i)
+    {
+        t[i] = this->subscribers[i];
+    }
+    size_t n = this->subscribers.size();
+    for (size_t i = 0; i < n; ++i)
+    {
+        t[i]->OnSystemMidiBindingsChanged(bindings);
+    }
+    delete[] t;
+
+
+}

src/PiPedalModel.hpp

@@ -25,7 +25,7 @@
 #include "Storage.hpp"
 #include "Banks.hpp"
 #include "JackConfiguration.hpp"
-#include "JackHost.hpp"
+#include "AudioHost.hpp"
 #include "VuUpdate.hpp"
 #include <functional>
 #include <filesystem>
@@ -38,16 +38,14 @@
 #include "AvahiService.hpp"
 #include <thread>
 
+namespace pipedal
+{
 
+    struct RealtimeMidiProgramRequest;
+    struct RealtimeNextMidiProgramRequest;
 
-
-
-namespace pipedal {
-
-
-
-
-class IPiPedalModelSubscriber {
+    class IPiPedalModelSubscriber
+    {
     public:
         virtual int64_t GetClientId() = 0;
         virtual void OnItemEnabledChanged(int64_t clientId, int64_t pedalItemId, bool enabled) = 0;
@@ -70,13 +68,17 @@ public:
         virtual void OnGovernorSettingsChanged(const std::string &governor) = 0;
         virtual void OnFavoritesChanged(const std::map<std::string, bool> &favorites) = 0;
         virtual void OnShowStatusMonitorChanged(bool show) = 0;
+        virtual void OnSystemMidiBindingsChanged(const std::vector<MidiBinding>&bindings) = 0;
         virtual void Close() = 0;
     };
 
-class PiPedalModel: private IJackHostCallbacks {
+    class PiPedalModel : private IAudioHostCallbacks
+    {
     private:
         std::unique_ptr<std::jthread> pingThread;
 
+        std::vector<MidiBinding> systemMidiBindings;
+
         AvahiService avahiService;
         uint16_t webPort;
 
@@ -85,14 +87,15 @@ private:
 
         AdminClient adminClient;
 
-
-    class MidiListener {
+        class MidiListener
+        {
         public:
             int64_t clientId;
             int64_t clientHandle;
             bool listenForControlsOnly;
         };
-    class AtomOutputListener {
+        class AtomOutputListener
+        {
         public:
             int64_t clientId;
             int64_t clientHandle;
@@ -110,12 +113,11 @@ private:
         Storage storage;
         bool hasPresetChanged = false;
 
-    std::unique_ptr<JackHost> jackHost;
+        std::unique_ptr<AudioHost> audioHost;
         JackConfiguration jackConfiguration;
         std::shared_ptr<Lv2PedalBoard> lv2PedalBoard;
         std::filesystem::path webRoot;
 
-
         std::vector<IPiPedalModelSubscriber *> subscribers;
         void SetPresetChanged(int64_t clientId, bool value);
         void FirePresetsChanged(int64_t clientId);
@@ -128,8 +130,8 @@ private:
         void UpdateDefaults(PedalBoardItem *pedalBoardItem);
         void UpdateDefaults(PedalBoard *pedalBoard);
 
-    
-    class VuSubscription {
+        class VuSubscription
+        {
         public:
             int64_t subscriptionHandle;
             int64_t instanceid;
@@ -149,16 +151,19 @@ private:
 
         IPiPedalModelSubscriber *GetNotificationSubscriber(int64_t clientId);
 
-private: // IJackHostCallbacks
+    private: // IAudioHostCallbacks
         virtual void OnNotifyVusSubscription(const std::vector<VuUpdate> &updates);
         virtual void OnNotifyMonitorPort(const MonitorPortUpdate &update);
         virtual void OnNotifyMidiValueChanged(int64_t instanceId, int portIndex, float value);
         virtual void OnNotifyMidiListen(bool isNote, uint8_t noteOrControl);
         virtual void OnNotifyAtomOutput(uint64_t instanceId, const std::string &atomType, const std::string &atomJson);
+        virtual void OnNotifyMidiProgramChange(RealtimeMidiProgramRequest &midiProgramRequest);
+        virtual void OnNotifyNextMidiProgram(const RealtimeNextMidiProgramRequest&request);
 
         void UpdateVst3Settings(PedalBoard &pedalBoard);
 
         PiPedalConfiguration configuration;
+
     public:
         PiPedalModel();
         virtual ~PiPedalModel();
@@ -195,8 +200,8 @@ public:
         void SetPedalBoard(int64_t clientId, PedalBoard &pedalBoard);
         void UpdateCurrentPedalBoard(int64_t clientId, PedalBoard &pedalBoard);
 
-
         void GetPresets(PresetIndex *pResult);
+        
         PedalBoard GetPreset(int64_t instanceId);
         void GetBank(int64_t instanceId, BankFile *pBank);
 
@@ -218,7 +223,6 @@ public:
         void MoveBank(int64_t clientId, int from, int to);
         int64_t DeleteBank(int64_t clientId, int64_t instanceId);
 
-
         int64_t DuplicatePreset(int64_t clientId, int64_t instanceId) { return CopyPreset(clientId, instanceId, -1); }
 
         JackConfiguration GetJackConfiguration();
@@ -238,11 +242,11 @@ public:
         void SetGovernorSettings(const std::string &governor);
         GovernorSettings GetGovernorSettings();
 
-
-
         int64_t AddVuSubscription(int64_t instanceId);
         void RemoveVuSubscription(int64_t subscriptionHandle);
 
+        void SetSystemMidiBindings(std::vector<MidiBinding> &bindings);
+        std::vector<MidiBinding> GetSystemMidiBidings();
 
         int64_t MonitorPort(int64_t instanceId, const std::string &key, float updateInterval, PortMonitorCallback onUpdate);
         void UnmonitorPort(int64_t subscriptionHandle);
@@ -252,16 +256,16 @@ public:
             int64_t instanceId,
             const std::string uri,
             std::function<void(const std::string &jsonResjult)> onSuccess,
-        std::function<void (const std::string& error)> onError
-    );
+            std::function<void(const std::string &error)> onError);
 
         BankIndex GetBankIndex() const;
         void RenameBank(int64_t clientId, int64_t bankId, const std::string &newName);
         int64_t SaveBankAs(int64_t clientId, int64_t bankId, const std::string &newName);
         void OpenBank(int64_t clientId, int64_t bankId);
 
-    JackHostStatus GetJackStatus() {
-        return this->jackHost->getJackStatus();
+        JackHostStatus GetJackStatus()
+        {
+            return this->audioHost->getJackStatus();
         }
         JackServerSettings GetJackServerSettings();
         void SetJackServerSettings(const JackServerSettings &jackServerSettings);

src/PiPedalSocket.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2022 Robin Davies
+// Copyright (c) 2022-2023 Robin Davies
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy of
 // this software and associated documentation files (the "Software"), to deal in
@@ -1235,6 +1235,17 @@ public:
             pReader->read(&favorites);
             this->model.SetFavorites(favorites);
         }
+        else if (message == "setSystemMidiBindings")
+        {
+            std::vector<MidiBinding> bindings;
+            pReader->read(&bindings);
+            this->model.SetSystemMidiBindings(bindings);
+        }
+        else if (message == "getSystemMidiBindings")
+        {
+            std::vector<MidiBinding> bindings = this->model.GetSystemMidiBidings();
+            this->Reply(replyTo,"getSystemMidiBindings",bindings);
+        }
         else
         {
             Lv2Log::error("Unknown message received: %s", message.c_str());
@@ -1308,6 +1319,10 @@ protected:
     }
 
 public:
+    virtual void OnSystemMidiBindingsChanged(const std::vector<MidiBinding>&bindings) {
+        Send("onSystemMidiBindingsChanged",bindings);
+    }
+
     virtual void OnFavoritesChanged(const std::map<std::string, bool> &favorites)
     {
         Send("onFavoritesChanged", favorites);

src/PiPedalSocket.hpp

@@ -19,7 +19,7 @@
 
 #pragma once
 
-#include "BeastServer.hpp"
+#include "WebServer.hpp"
 #include "PiPedalModel.hpp"
 
 

src/RingBufferReader.hpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2022 Robin Davies
+// Copyright (c) 2022-2023 Robin Davies
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy of
 // this software and associated documentation files (the "Software"), to deal in
@@ -22,7 +22,7 @@
 #include "PiPedalException.hpp"
 #include "Lv2Log.hpp"
 #include "VuUpdate.hpp"
-#include "JackHost.hpp"
+#include "AudioHost.hpp"
 namespace pipedal
 {
 
@@ -51,8 +51,25 @@ namespace pipedal
 
         AtomOutput = 17,
 
+        MidiProgramChange = 18, // program change requested via midi.
+        AckMidiProgramChange = 19,
+
+        NextMidiProgram = 20,
+
     };
 
+    struct RealtimeNextMidiProgramRequest {
+        int64_t requestId;
+        int32_t direction;
+    };
+
+    struct RealtimeMidiProgramRequest {
+        int64_t requestId;
+        int8_t bank;
+        uint8_t program;
+    };
+
+
     class RealtimeMonitorPortSubscription
     {
     public:
@@ -304,6 +321,25 @@ namespace pipedal
             write(RingBufferCommand::OnMidiListen, msg);
         }
 
+        /**
+         * @brief Notify host of a midi program change request.
+         * 
+         * @param bank MIDI bank number, or -1 for current bank.
+         * @param program MIDI program number.
+         */
+        void OnMidiProgramChange(int64_t _requestId,int8_t _bank,uint8_t _program)
+        {
+            RealtimeMidiProgramRequest msg { requestId:_requestId, bank: _bank,program: _program};
+
+
+            write(RingBufferCommand::MidiProgramChange,msg);
+        }
+        void OnNextMidiProgram(int64_t requestId,int32_t direction)
+        {
+            RealtimeNextMidiProgramRequest msg { requestId: requestId, direction:direction};
+            write(RingBufferCommand::NextMidiProgram,msg);
+        }
+
         void SetControlValue(int effectIndex, int controlIndex, float value)
         {
             SetControlValueBody body;
@@ -351,6 +387,10 @@ namespace pipedal
         {
             write(RingBufferCommand::SetVuSubscriptions, configuration);
         }
+        void AckMidiProgramRequest(int64_t requestId)
+        {
+            write(RingBufferCommand::AckMidiProgramChange,requestId);
+        }
 
         void SetMonitorPortSubscriptions(RealtimeMonitorPortSubscriptions *subscriptions)
         {

src/Storage.cpp

@@ -1,4 +1,4 @@
-// Copyright (c) 2022 Robin Davies
+// Copyright (c) 2022-2023 Robin Davies
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy of
 // this software and associated documentation files (the "Software"), to deal in
@@ -511,6 +511,7 @@ void Storage::SetPresetIndex(const PresetIndex &presets)
     this->currentBank = std::move(bankFile); // deleting any stray presets while we're at it.
     this->SaveCurrentBank();
 }
+
 void Storage::GetPresetIndex(PresetIndex *pResult)
 {
     *pResult = PresetIndex();
@@ -523,6 +524,15 @@ void Storage::GetPresetIndex(PresetIndex *pResult)
         pResult->presets().push_back(entry);
     }
 }
+int64_t Storage::GetPresetByProgramNumber(uint8_t program)const
+{
+    if (program >= currentBank.presets().size())
+    {
+        if (currentBank.presets().size() == 0) return -1;
+        program = (uint8_t)currentBank.presets().size()-1;
+    }
+    return currentBank.presets()[program]->instanceId();
+}
 
 PedalBoard Storage::GetPreset(int64_t instanceId) const
 {
@@ -736,6 +746,17 @@ void Storage::MoveBank(int from, int to)
     this->bankIndex.move(from, to);
     this->SaveBankIndex();
 }
+
+
+int64_t Storage::GetBankByMidiBankNumber(uint8_t bankNumber) {
+    auto &entries = this->bankIndex.entries();
+    if (bankNumber >= entries.size())
+    {
+        if (entries.size() == 0) return -1;
+        bankNumber = (uint8_t)(entries.size()-1);
+    }
+    return entries[bankNumber].instanceId();
+}
 int64_t Storage::DeleteBank(int64_t bankId)
 {
     auto &entries = this->bankIndex.entries();
@@ -1333,6 +1354,36 @@ void Storage::SetJackServerSettings(const pipedal::JackServerSettings &jackConfi
 #endif
 }
 
+void Storage::SetSystemMidiBindings(const std::vector<MidiBinding>&bindings)
+{
+    std::filesystem::path fileName = this->dataRoot / "SystemMidiBindings.json";
+    std::ofstream f;
+    f.open(fileName);
+    if (f.is_open())
+    {
+        json_writer writer(f);
+        writer.write(bindings);
+    }
+}
+std::vector<MidiBinding> Storage::GetSystemMidiBindings()
+{
+    std::vector<MidiBinding> result;
+
+    std::filesystem::path fileName = this->dataRoot / "SystemMidiBindings.json";
+    std::ifstream f;
+    f.open(fileName);
+    if (f.is_open())
+    {
+        json_reader reader(f);
+        reader.read(&result);
+    } else {
+        result.push_back(MidiBinding::SystemBinding("prevProgram"));
+        result.push_back(MidiBinding::SystemBinding("nextProgram"));
+    }
+    return result;
+}
+
+
 JSON_MAP_BEGIN(UserSettings)
 JSON_MAP_REFERENCE(UserSettings, governor)
 JSON_MAP_REFERENCE(UserSettings, showStatusMonitor)

src/Storage.hpp

@@ -109,6 +109,7 @@ public:
     void LoadUserSettings();
     void SaveUserSettings();
     void LoadBank(int64_t instanceId);
+    int64_t GetBankByMidiBankNumber(uint8_t bankNumber);
     const PedalBoard& GetCurrentPreset();
     void SaveCurrentPreset(const PedalBoard&pedalBoard);
     int64_t SaveCurrentPresetAs(const PedalBoard&pedalBoard, const std::string&namne,int64_t saveAfterInstanceId = -1);
@@ -116,6 +117,7 @@ public:
     void GetPresetIndex(PresetIndex*pResult);
     void SetPresetIndex(const PresetIndex &presetIndex);
     PedalBoard GetPreset(int64_t instanceId) const;
+    int64_t GetPresetByProgramNumber(uint8_t program) const;
     void GetBankFile(int64_t instanceId,BankFile*pResult) const;
     int64_t UploadPreset(const BankFile&bankFile, int64_t uploadAfter);
     int64_t UploadBank(BankFile&bankFile, int64_t uploadAfter);
@@ -170,6 +172,8 @@ public:
 
     void SetShowStatusMonitor(bool show);
     bool GetShowStatusMonitor() const;
+    void SetSystemMidiBindings(const std::vector<MidiBinding>&bindings);
+    std::vector<MidiBinding> GetSystemMidiBindings();
 
 };
 

src/WebServer.cpp

@@ -18,7 +18,7 @@
 #include <strings.h>
 #include "Ipv6Helpers.hpp"
 
-#include "BeastServer.hpp"
+#include "WebServer.hpp"
 
 #include "Uri.hpp"
 
@@ -133,7 +133,7 @@ std::string GetFromAddress(const tcp::socket &socket)
 namespace pipedal
 {
 
-    class BeastServerImpl : public BeastServer
+    class WebServerImpl : public WebServer
     {
     private:
         int signalOnDone = -1;
@@ -200,7 +200,7 @@ namespace pipedal
 
         class WebSocketSession : public std::enable_shared_from_this<WebSocketSession>, public SocketHandler::IWriteCallback
         {
-            BeastServerImpl *pServer;
+            WebServerImpl *pServer;
             server::connection_ptr webSocket;
             std::string fromAddress;
             std::shared_ptr<SocketHandler> socketHandler;
@@ -224,7 +224,7 @@ namespace pipedal
                 Lv2Log::info("WebSocketSession closed.");
             }
             using ptr = std::shared_ptr<WebSocketSession>;
-            WebSocketSession(BeastServerImpl *pServer, server::connection_ptr &webSocket)
+            WebSocketSession(WebServerImpl *pServer, server::connection_ptr &webSocket)
                 : pServer(pServer),
                   webSocket(webSocket)
             {
@@ -599,9 +599,9 @@ namespace pipedal
                 using websocketpp::lib::placeholders::_1;
                 using websocketpp::lib::placeholders::_2;
 
-                m_endpoint.set_open_handler(bind(&BeastServerImpl::on_open, this, _1));
-                m_endpoint.set_close_handler(bind(&BeastServerImpl::on_close, this, _1));
-                m_endpoint.set_http_handler(bind(&BeastServerImpl::on_http, this, _1));
+                m_endpoint.set_open_handler(bind(&WebServerImpl::on_open, this, _1));
+                m_endpoint.set_close_handler(bind(&WebServerImpl::on_close, this, _1));
+                m_endpoint.set_http_handler(bind(&WebServerImpl::on_http, this, _1));
 
                 std::string hostName = getHostName();
                 if (hostName.length() != 0)
@@ -660,7 +660,7 @@ namespace pipedal
             }
         }
 
-        static void ThreadProc(BeastServerImpl *server)
+        static void ThreadProc(WebServerImpl *server)
         {
             server->Run();
         }
@@ -717,7 +717,7 @@ namespace pipedal
             this->pBgThread = new std::thread(ThreadProc, this);
         }
 
-        BeastServerImpl(const std::string &address, int port, const char *rootPath, int threads)
+        WebServerImpl(const std::string &address, int port, const char *rootPath, int threads)
             : address(address),
               rootPath(rootPath),
               port(port),
@@ -727,7 +727,7 @@ namespace pipedal
     };
 } // namespace pipedal
 
-std::shared_ptr<ISocketFactory> BeastServerImpl::GetSocketFactory(const uri &requestUri)
+std::shared_ptr<ISocketFactory> WebServerImpl::GetSocketFactory(const uri &requestUri)
 {
 
     for (auto factory : this->socket_factories)
@@ -740,7 +740,7 @@ std::shared_ptr<ISocketFactory> BeastServerImpl::GetSocketFactory(const uri &req
     return nullptr;
 }
 
-std::shared_ptr<BeastServer> pipedal::createBeastServer(const boost::asio::ip::address &address, int port, const char *rootPath, int threads)
+std::shared_ptr<WebServer> pipedal::WebServer::create(const boost::asio::ip::address &address, int port, const char *rootPath, int threads)
 {
-    return std::shared_ptr<BeastServer>(new BeastServerImpl(address.to_string(), port, rootPath, threads));
+    return std::shared_ptr<WebServer>(new WebServerImpl(address.to_string(), port, rootPath, threads));
 }

src/WebServer.hpp

@@ -68,10 +68,10 @@ public:
 //xxx move this to HtmlHelpers.
 std::string last_modified(const std::filesystem::path& path);
 
-class BeastServerImpl;
+class WebServerImpl;
 
 class SocketHandler {
-    friend class BeastServerImpl;
+    friend class WebServerImpl;
 public:
 
     class IWriteCallback {
@@ -213,9 +213,9 @@ public:
 
 };
 
-class BeastServer {
+class WebServer {
 public:
-    virtual ~BeastServer() { }
+    virtual ~WebServer() { }
 
     virtual void SetLogHttpRequests(bool enableLogging) = 0;
 
@@ -227,10 +227,17 @@ public:
 
     // signalOnDone: fire the specified POSIX signal when the service thread terminates. -1 for no signal.
     virtual void RunInBackground(int signalOnDone = -1) = 0;
+
+    static std::shared_ptr<WebServer> create(
+        const boost::asio::ip::address &address, 
+        int port, 
+        const char *rootPath, 
+        int threads);
+
+
 };
 
 
-std::shared_ptr<BeastServer> createBeastServer(const boost::asio::ip::address &address, int port, const char *rootPath, int threads);
 
 
 

src/WebServerTest.cpp

@@ -19,13 +19,13 @@
 #include "pch.h"
 #include "catch.hpp"
 
-#include "BeastServer.hpp"
+#include "WebServer.hpp"
 #include "MemDebug.hpp"
 #include <iostream>
 
 using namespace pipedal;
 
-TEST_CASE("BeastServer shutdown", "[beastServerShutdown][Build][Dev]")
+TEST_CASE("WebServer shutdown", "[webServerShutdown][Build][Dev]")
 {
     MemStats initialMemory = GetMemStats();
     {
@@ -34,7 +34,7 @@ TEST_CASE("BeastServer shutdown", "[beastServerShutdown][Build][Dev]")
         std::string doc_root = ".";
         auto const threads = 3;
 
-        auto server = createBeastServer(
+        auto server = WebServer::create(
             address, port, doc_root.c_str(), threads);
         server->RunInBackground();
         sleep(5);

src/main.cpp

@@ -20,7 +20,7 @@
 #include "pch.h"
 
 #include "AudioConfig.hpp"
-#include "BeastServer.hpp"
+#include "WebServer.hpp"
 #include <iostream>
 #include "Lv2Log.hpp"
 #include "ServiceConfiguration.hpp"
@@ -601,7 +601,7 @@ int main(int argc, char *argv[])
     }
 
     uint16_t port;
-    std::shared_ptr<BeastServer> server;
+    std::shared_ptr<WebServer> server;
     try
     {
         auto const address = boost::asio::ip::make_address(configuration.GetSocketServerAddress());
@@ -609,7 +609,7 @@ int main(int argc, char *argv[])
 
         auto const threads = std::max<int>(1, configuration.GetThreads());
 
-        server = createBeastServer(
+        server = WebServer::create(
             address, port, web_root.c_str(), threads);
 
         Lv2Log::info("Document root: %s Threads: %d", doc_root.c_str(), (int)threads);

test/CMakeLists.txt

@@ -42,8 +42,8 @@ add_definitions(-DBOOST_ERROR_CODE_HEADER_ONLY)
 add_executable(piddletest main.cpp pch.h UriTest.cpp JsonTest.cpp
 
 
-    ../src/Uri.cpp ../src/Uri.hpp ../src/HtmlHelper.cpp ../src/HtmlHelper.hpp BeastServerTest.cpp 
-    ../src/BeastServer.cpp ../src/BeastServer.hpp ../src/json.hpp ../src/json.cpp
+    ../src/Uri.cpp ../src/Uri.hpp ../src/HtmlHelper.cpp ../src/HtmlHelper.hpp WebServerTest.cpp 
+    ../src/WebServer.cpp ../src/WebServer.hpp ../src/json.hpp ../src/json.cpp
     ../src/Lv2Host.cpp ../src/Lv2Host.hpp
     ../src/Lv2Log.hpp ../src/Lv2Log.cpp
     ../src/PluginType.hpp ../src/PluginType.cpp