gpu 0.2.3

An ergonomic GPU API
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

use crate::prelude::*;
use crate::{Context, GLContext};

type ShaderResource = <glow::Context as HasContext>::Shader;

/// A shader representation.
pub struct Shader {
    resource : ShaderResource,
    gl       : GLContext
}

impl Shader {
    /// Creates a new `Shader`.
    pub fn new(context:&Context, shader_type:u32, source:&str) -> Result<Self, String> {
        let gl       = context.gl_context();
        let resource = unsafe { gl.create_shader(shader_type)? };
        unsafe {
            gl.shader_source(resource, source);
            gl.compile_shader(resource);

            if !gl.get_shader_compile_status(resource) {
                return Err(gl.get_shader_info_log(resource));
            }
        }
        Ok(Self {resource,gl})
    }

    /// Gets the `ShaderResource`.
    pub fn resource(&self) -> ShaderResource { self.resource }
}

impl Drop for Shader {
    fn drop(&mut self) {
        unsafe {
            self.gl.delete_shader(self.resource());
        }
    }
}