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

use super::super::super::{Result, Error};
use super::super::super::libaudioverse_sys;
use std::os::raw::{ c_int };
use check;

/// Indicates a strategy to use for panning. This is mostly for the multipanner node and the 3D components of this library.
#[repr(i32)]
pub enum PanningStrategy {
    /// Indicates HRTF panning.
    Hrtf = libaudioverse_sys::Lav_PANNING_STRATEGIES_Lav_PANNING_STRATEGY_HRTF,
    /// Indicates stereo panning.
    Stereo = libaudioverse_sys::Lav_PANNING_STRATEGIES_Lav_PANNING_STRATEGY_STEREO,
    /// Indicates 4.0 surround sound (quadraphonic) panning.
    Surround40 = libaudioverse_sys::Lav_PANNING_STRATEGIES_Lav_PANNING_STRATEGY_SURROUND40,
    /// Indicates 5.1 surround sound panning.
    Surround51 = libaudioverse_sys::Lav_PANNING_STRATEGIES_Lav_PANNING_STRATEGY_SURROUND51,
    /// Indicates 7.1 surround sound panning.
    Surround71 = libaudioverse_sys::Lav_PANNING_STRATEGIES_Lav_PANNING_STRATEGY_SURROUND71
}

/// Proxy to a PanningStrategy property.
pub struct PanningStrategyProperty {
    pub(crate) index : c_int, // the index libaudioverse uses to identify this property for this node
    pub(crate) node_handle : libaudioverse_sys::LavHandle, // a handle to the parent node
}

impl PanningStrategyProperty {
    pub fn get(&self) -> Result<PanningStrategy> {
        let mut value : i32 = 0;
        check(unsafe { libaudioverse_sys::Lav_nodeGetIntProperty(self.node_handle, self.index, &mut value) })?;
        match value {
            libaudioverse_sys::Lav_PANNING_STRATEGIES_Lav_PANNING_STRATEGY_HRTF => Ok(PanningStrategy::Hrtf),
            libaudioverse_sys::Lav_PANNING_STRATEGIES_Lav_PANNING_STRATEGY_STEREO => Ok(PanningStrategy::Stereo),
            libaudioverse_sys::Lav_PANNING_STRATEGIES_Lav_PANNING_STRATEGY_SURROUND40 => Ok(PanningStrategy::Surround40),
            libaudioverse_sys::Lav_PANNING_STRATEGIES_Lav_PANNING_STRATEGY_SURROUND51 => Ok(PanningStrategy::Surround51),
            libaudioverse_sys::Lav_PANNING_STRATEGIES_Lav_PANNING_STRATEGY_SURROUND71 => Ok(PanningStrategy::Surround71),
            _ => Err(Error {
                code: libaudioverse_sys::Lav_ERRORS_Lav_ERROR_UNKNOWN,
                message : "Invalid panning strategy".to_string()
            })
        }
    }
    
    fn set_int(&self, value : i32) -> Result<()> {
        check(unsafe { libaudioverse_sys::Lav_nodeSetIntProperty(self.node_handle, self.index, value) })?;
        Ok(())
    }
    
    pub fn set(&self, strategy : PanningStrategy) -> Result<()> {
        self.set_int(strategy as i32)
    }
}