meshopt 0.6.2

Rust ffi bindings and idiomatic wrapper for mesh optimizer
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

// BEGIN - Embark standard lints v5 for Rust 1.55+
// do not change or add/remove here, but one can add exceptions after this section
// for more info see: <https://github.com/EmbarkStudios/rust-ecosystem/issues/59>
#![deny(unsafe_code)]
#![warn(
    clippy::all,
    clippy::await_holding_lock,
    clippy::char_lit_as_u8,
    clippy::checked_conversions,
    clippy::dbg_macro,
    clippy::debug_assert_with_mut_call,
    clippy::disallowed_methods,
    clippy::disallowed_types,
    clippy::doc_markdown,
    clippy::empty_enum,
    clippy::enum_glob_use,
    clippy::exit,
    clippy::expl_impl_clone_on_copy,
    clippy::explicit_deref_methods,
    clippy::explicit_into_iter_loop,
    clippy::fallible_impl_from,
    clippy::filter_map_next,
    clippy::flat_map_option,
    clippy::float_cmp_const,
    clippy::fn_params_excessive_bools,
    clippy::from_iter_instead_of_collect,
    clippy::if_let_mutex,
    clippy::implicit_clone,
    clippy::imprecise_flops,
    clippy::inefficient_to_string,
    clippy::invalid_upcast_comparisons,
    clippy::large_digit_groups,
    clippy::large_stack_arrays,
    clippy::large_types_passed_by_value,
    clippy::let_unit_value,
    clippy::linkedlist,
    clippy::lossy_float_literal,
    clippy::macro_use_imports,
    clippy::manual_ok_or,
    clippy::map_err_ignore,
    clippy::map_flatten,
    clippy::map_unwrap_or,
    clippy::match_on_vec_items,
    clippy::match_same_arms,
    clippy::match_wild_err_arm,
    clippy::match_wildcard_for_single_variants,
    clippy::mem_forget,
    clippy::missing_enforced_import_renames,
    clippy::mut_mut,
    clippy::mutex_integer,
    clippy::needless_borrow,
    clippy::needless_continue,
    clippy::needless_for_each,
    clippy::option_option,
    clippy::path_buf_push_overwrite,
    clippy::ptr_as_ptr,
    clippy::rc_mutex,
    clippy::ref_option_ref,
    clippy::rest_pat_in_fully_bound_structs,
    clippy::same_functions_in_if_condition,
    clippy::semicolon_if_nothing_returned,
    clippy::single_match_else,
    clippy::string_add_assign,
    clippy::string_add,
    clippy::string_lit_as_bytes,
    clippy::string_to_string,
    clippy::todo,
    clippy::trait_duplication_in_bounds,
    clippy::unimplemented,
    clippy::unnested_or_patterns,
    clippy::unused_self,
    clippy::useless_transmute,
    clippy::verbose_file_reads,
    clippy::zero_sized_map_values,
    future_incompatible,
    nonstandard_style,
    rust_2018_idioms
)]
// END - Embark standard lints v0.5 for Rust 1.55+
// crate-specific exceptions:
// This crate is doing a lot of FFI and byte munging
#![allow(unsafe_code)]

pub mod analyze;
pub mod clusterize;
pub mod encoding;
pub mod error;
pub mod ffi;
pub mod optimize;
pub mod packing;
pub mod remap;
pub mod shadow;
pub mod simplify;
pub mod stripify;
pub mod utilities;

pub use crate::{
    analyze::*, clusterize::*, encoding::*, error::*, optimize::*, packing::*, remap::*, shadow::*,
    simplify::*, stripify::*, utilities::*,
};
use std::marker::PhantomData;

/// Vertex attribute stream, similar to `glVertexPointer`
///
/// Each element takes size bytes, with stride controlling
/// the spacing between successive elements.
#[derive(Debug, Copy, Clone)]
pub struct VertexStream<'a> {
    /// Pointer to buffer which contains vertex data.
    pub data: *const u8,
    /// Space between vertices inside the buffer (in bytes).
    pub stride: usize,
    /// The size in bytes of the vertex attribute this Stream is representing.
    pub size: usize,

    _marker: PhantomData<&'a ()>,
}

impl<'a> VertexStream<'a> {
    /// Create a `VertexStream` for a buffer consisting only of elements of type `T`.
    pub fn new<T>(ptr: *const T) -> VertexStream<'a> {
        Self::new_with_stride::<T, T>(ptr, std::mem::size_of::<T>())
    }

    /// Create a `VertexStream` for a buffer that contains elements of type `VertexType`.
    ///
    /// The buffer pointed to by `ptr` starts with one value of `T`, the next value of T
    /// is `*(ptr + stride)`.
    ///
    /// (The `VertexType` does not need to be a concrete type,
    /// it is only used here to avoid casts on the caller side).
    pub fn new_with_stride<T, VertexType>(
        ptr: *const VertexType,
        stride: usize,
    ) -> VertexStream<'a> {
        VertexStream {
            data: ptr.cast(),
            stride,
            size: std::mem::size_of::<T>(),

            _marker: PhantomData,
        }
    }
}