ramidier 0.3.0

Akai Pro Apc key 25 abstraction layer
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173

use crate::enums::button::knob_ctrl::KnobCtrlKey;
use crate::enums::button::pads::PadKey;
use crate::enums::button::soft_keys::SoftKey;
use crate::errors::mapping::HardwareMappingError;
use crate::io::input_data::MidiInputData;
use midi_msg::{ChannelVoiceMsg, MidiMsg};

pub struct PadsAndKnobsChannel;
pub struct KeyboardChannel;

pub trait ChannelKind {
    type Group;

    fn decode(msg: &MidiMsg) -> Option<MidiInputData<Self::Group>>;
}

impl ChannelKind for PadsAndKnobsChannel {
    type Group = PadsAndKnobsInputGroup;

    fn decode(msg: &MidiMsg) -> Option<MidiInputData<Self::Group>> {
        match msg {
            MidiMsg::ChannelVoice {
                channel,
                msg: ChannelVoiceMsg::NoteOn { note, velocity: _ },
            } => PadsAndKnobsInputGroup::try_from(*note)
                .map(|input_group| MidiInputData {
                    channel: *channel,
                    input_group,
                    value: 1u8,
                })
                .ok(),
            MidiMsg::ChannelVoice {
                channel,
                msg: ChannelVoiceMsg::NoteOff { note, velocity: _ },
            } => PadsAndKnobsInputGroup::try_from(*note)
                .map(|input_group| MidiInputData {
                    channel: *channel,
                    input_group,
                    value: 0u8,
                })
                .ok(),
            MidiMsg::ChannelVoice {
                channel,
                msg: ChannelVoiceMsg::ControlChange { control },
            } => PadsAndKnobsInputGroup::try_from(control.control())
                .map(|input_group| MidiInputData {
                    channel: *channel,
                    input_group,
                    value: control.value(),
                })
                .ok(),
            _ => None,
        }
    }
}

impl ChannelKind for KeyboardChannel {
    type Group = KeyboardInputGroup;

    fn decode(msg: &MidiMsg) -> Option<MidiInputData<Self::Group>> {
        match msg {
            MidiMsg::ChannelVoice {
                channel,
                msg: ChannelVoiceMsg::NoteOn { note, velocity: _ },
            } => KeyboardInputGroup::try_from(*note)
                .map(|input_group| MidiInputData {
                    channel: *channel,
                    input_group,
                    value: 1u8,
                })
                .ok(),
            MidiMsg::ChannelVoice {
                channel,
                msg: ChannelVoiceMsg::NoteOff { note, velocity: _ },
            } => KeyboardInputGroup::try_from(*note)
                .map(|input_group| MidiInputData {
                    channel: *channel,
                    input_group,
                    value: 0u8,
                })
                .ok(),
            _ => None,
        }
    }
}

#[derive(Debug, Copy, Clone)]
pub enum PadsAndKnobsInputGroup {
    Pads(PadKey),
    SoftKeys(SoftKey),
    KnobCtrl(KnobCtrlKey),
    Knob(u8),
    Up,
    Down,
    Right,
    Left,
    StopAllClips,
    Shift,
    ResumePause,
    Start,
}

impl From<PadsAndKnobsInputGroup> for u8 {
    fn from(value: PadsAndKnobsInputGroup) -> Self {
        match value {
            PadsAndKnobsInputGroup::Pads(x) => x.into(),
            PadsAndKnobsInputGroup::SoftKeys(x) => x.into(),
            PadsAndKnobsInputGroup::KnobCtrl(x) => x.into(),
            PadsAndKnobsInputGroup::Up => 64,
            PadsAndKnobsInputGroup::Down => 65,
            PadsAndKnobsInputGroup::Right => 67,
            PadsAndKnobsInputGroup::Left => 66,
            PadsAndKnobsInputGroup::StopAllClips => 81,
            PadsAndKnobsInputGroup::Shift => 98,
            PadsAndKnobsInputGroup::ResumePause => 91,
            PadsAndKnobsInputGroup::Start => 92,
            PadsAndKnobsInputGroup::Knob(index) => index + 47,
        }
    }
}

impl TryFrom<u8> for PadsAndKnobsInputGroup {
    type Error = HardwareMappingError;
    fn try_from(value: u8) -> Result<Self, Self::Error> {
        match value {
            64 => Ok(Self::Up),
            65 => Ok(Self::Down),
            66 => Ok(Self::Left),
            67 => Ok(Self::Right),
            81 => Ok(Self::StopAllClips),
            98 => Ok(Self::Shift),
            91 => Ok(Self::ResumePause),
            93 => Ok(Self::Start),
            0..=39 => PadKey::try_from(value)
                .map_or(Err(Self::Error::InvalidPadIndex(value)), |k| {
                    Ok(Self::Pads(k))
                }),
            48..=55 => Ok(Self::Knob(value - 47)),
            _ => SoftKey::try_from(value).map_or_else(
                |_| {
                    KnobCtrlKey::try_from(value)
                        .map_or(Err(Self::Error::InvalidKnobCtrlIndex(value)), |k| {
                            Ok(Self::KnobCtrl(k))
                        })
                },
                |k| Ok(Self::SoftKeys(k)),
            ),
        }
    }
}

#[derive(Debug, Copy, Clone)]
pub enum KeyboardInputGroup {
    Key(u8),
}

impl From<KeyboardInputGroup> for u8 {
    fn from(value: KeyboardInputGroup) -> Self {
        match value {
            KeyboardInputGroup::Key(x) => x,
        }
    }
}

impl TryFrom<u8> for KeyboardInputGroup {
    type Error = HardwareMappingError;
    fn try_from(value: u8) -> Result<Self, Self::Error> {
        match value {
            48..=72 => Ok(Self::Key(value - 47)),
            _ => Err(Self::Error::InvalidKeyboardKeyIndex(value)),
        }
    }
}