draco_core/
keyframe_animation_decoder.rs

1//! Decoder for [`KeyframeAnimation`].
2//!
3//! Mirrors C++ Draco's `KeyframeAnimationDecoder`, a thin wrapper around the
4//! sequential point-cloud decoder.
5
6use crate::decoder_buffer::DecoderBuffer;
7use crate::keyframe_animation::KeyframeAnimation;
8use crate::point_cloud::PointCloud;
9use crate::point_cloud_decoder::PointCloudDecoder;
10use crate::status::Status;
11
12/// Decodes a Draco bitstream into [`KeyframeAnimation`] data.
13#[derive(Debug, Default)]
14pub struct KeyframeAnimationDecoder;
15
16impl KeyframeAnimationDecoder {
17    /// Creates a new keyframe animation decoder.
18    pub fn new() -> Self {
19        Self
20    }
21
22    /// Decodes `in_buffer` into `animation`. Mirrors C++
23    /// `KeyframeAnimationDecoder::Decode`.
24    ///
25    /// The point cloud underneath is decoded with [`PointCloudDecoder`]'s
26    /// default, on the calling thread. A caller that wants more threads decodes
27    /// it the same way this does, with a decoder of its own:
28    ///
29    /// ```
30    /// # fn decode(bytes: &[u8]) -> draco_core::Status {
31    /// use draco_core::{DecoderBuffer, KeyframeAnimation, PointCloud, PointCloudDecoder};
32    ///
33    /// let mut point_cloud = PointCloud::new();
34    /// let mut decoder = PointCloudDecoder::new();
35    /// decoder.set_threads(0);
36    /// decoder.decode(&mut DecoderBuffer::new(bytes), &mut point_cloud)?;
37    /// let animation = KeyframeAnimation::from_point_cloud(point_cloud);
38    /// # let _ = animation;
39    /// # Ok(())
40    /// # }
41    /// ```
42    pub fn decode(
43        &mut self,
44        in_buffer: &mut DecoderBuffer,
45        animation: &mut KeyframeAnimation,
46    ) -> Status {
47        let mut point_cloud = PointCloud::new();
48        let mut decoder = PointCloudDecoder::new();
49        decoder.decode(in_buffer, &mut point_cloud)?;
50        *animation = KeyframeAnimation::from_point_cloud(point_cloud);
51        Ok(())
52    }
53}
draco_core/keyframe_animation_decoder.rs

draco_core/
keyframe_animation_decoder.rs
